/* roulang page: index */
:root {
            --yb-primary: #0F1712;
            --yb-primary-light: #1A241D;
            --yb-primary-dark: #080D0A;
            --yb-accent: #A8E32E;
            --yb-accent-light: #C2F24C;
            --yb-accent-glow: rgba(168, 227, 46, 0.25);
            --yb-alert: #FF4F1F;
            --yb-alert-glow: rgba(255, 79, 31, 0.3);
            --yb-bg: #F5F7F2;
            --yb-white: #FFFFFF;
            --yb-border: #E2E6E1;
            --yb-text: #1B211C;
            --yb-text-secondary: #5F6B62;
            --yb-text-muted: #8A958C;
            --yb-radius-sm: 8px;
            --yb-radius: 14px;
            --yb-radius-lg: 20px;
            --yb-shadow-sm: 0 2px 10px rgba(15, 23, 18, 0.04);
            --yb-shadow: 0 6px 20px rgba(15, 23, 18, 0.07);
            --yb-shadow-hover: 0 12px 28px rgba(15, 23, 18, 0.10);
            --yb-shadow-accent: 0 8px 24px rgba(168, 227, 46, 0.18);
            --yb-font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', system-ui, -apple-system, sans-serif;
            --yb-font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Roboto Mono', Consolas, monospace;
            --yb-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --yb-transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --yb-section-gap: 80px;
            --yb-section-gap-mobile: 48px;
            --yb-container-max: 1280px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--yb-font-family);
            font-size: 16px;
            line-height: 1.85;
            color: var(--yb-text);
            background-color: var(--yb-bg);
            overflow-x: hidden;
        }

        a {
            color: var(--yb-primary);
            text-decoration: none;
            transition: color var(--yb-transition);
        }

        a:hover,
        a:focus {
            color: var(--yb-accent);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--yb-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .yb-container {
            max-width: var(--yb-container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .yb-section {
            padding: var(--yb-section-gap) 0;
            position: relative;
        }

        .yb-section--dark {
            background: var(--yb-primary);
            color: var(--yb-white);
        }

        .yb-section--light {
            background: var(--yb-bg);
        }

        .yb-section--white {
            background: var(--yb-white);
        }

        .yb-section--accent-bg {
            background: #F0F7E6;
        }

        .yb-section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--yb-primary);
            margin-bottom: 0.5rem;
            line-height: 1.35;
        }

        .yb-section-title--light {
            color: var(--yb-white);
        }

        .yb-section-subtitle {
            font-size: 1rem;
            color: var(--yb-text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 2.5rem;
        }

        .yb-section-subtitle--light {
            color: rgba(255, 255, 255, 0.7);
        }

        .yb-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            line-height: 1.5;
            background: var(--yb-accent);
            color: var(--yb-primary);
        }

        .yb-badge--alert {
            background: var(--yb-alert);
            color: #fff;
        }

        .yb-badge--outline {
            background: transparent;
            border: 1.5px solid var(--yb-accent);
            color: var(--yb-accent);
        }

        .yb-badge--dark {
            background: var(--yb-primary);
            color: var(--yb-accent);
        }

        .yb-badge--sm {
            font-size: 0.7rem;
            padding: 2px 10px;
        }

        .yb-badge--md {
            font-size: 0.85rem;
            padding: 6px 16px;
        }

        .yb-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            line-height: 1.4;
            transition: all var(--yb-transition);
            text-align: center;
            border: 2px solid transparent;
            white-space: nowrap;
        }

        .yb-btn--primary {
            background: var(--yb-accent);
            color: var(--yb-primary);
            border-color: var(--yb-accent);
            box-shadow: var(--yb-shadow-accent);
        }

        .yb-btn--primary:hover,
        .yb-btn--primary:focus {
            background: var(--yb-primary);
            color: var(--yb-accent);
            border-color: var(--yb-primary);
            box-shadow: 0 10px 32px rgba(168, 227, 46, 0.2);
            transform: translateY(-2px);
        }

        .yb-btn--primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(168, 227, 46, 0.15);
        }

        .yb-btn--secondary {
            background: transparent;
            color: var(--yb-white);
            border-color: rgba(255, 255, 255, 0.5);
        }

        .yb-btn--secondary:hover,
        .yb-btn--secondary:focus {
            background: var(--yb-white);
            color: var(--yb-primary);
            border-color: var(--yb-white);
            transform: translateY(-2px);
        }

        .yb-btn--secondary--dark {
            background: transparent;
            color: var(--yb-primary);
            border-color: var(--yb-primary);
        }

        .yb-btn--secondary--dark:hover,
        .yb-btn--secondary--dark:focus {
            background: var(--yb-primary);
            color: #fff;
            border-color: var(--yb-primary);
            transform: translateY(-2px);
        }

        .yb-btn--sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }

        .yb-btn--lg {
            padding: 16px 40px;
            font-size: 1.05rem;
        }

        .yb-btn--full {
            width: 100%;
        }

        .yb-card {
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: var(--yb-radius);
            box-shadow: var(--yb-shadow-sm);
            transition: all var(--yb-transition);
            overflow: hidden;
        }

        .yb-card--hover:hover {
            transform: translateY(-4px);
            box-shadow: var(--yb-shadow-hover);
            border-color: var(--yb-accent);
        }

        .yb-card__body {
            padding: 28px;
        }

        .yb-card__body--sm {
            padding: 20px;
        }

        .yb-card__img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--yb-radius) var(--yb-radius) 0 0;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .yb-card:hover .yb-card__img {
            transform: scale(1.03);
        }

        .yb-card__date {
            font-size: 0.75rem;
            color: var(--yb-text-muted);
            font-weight: 500;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .yb-card__title {
            font-size: 1.25rem;
            font-weight: 700;
            line-height: 1.5;
            margin: 0.5rem 0;
            color: var(--yb-primary);
        }

        .yb-card__summary {
            font-size: 0.9rem;
            color: var(--yb-text-secondary);
            line-height: 1.8;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .yb-card__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--yb-primary);
            transition: all var(--yb-transition);
            margin-top: 12px;
        }

        .yb-card__link i {
            transition: transform var(--yb-transition);
        }

        .yb-card__link:hover {
            color: var(--yb-accent);
        }

        .yb-card__link:hover i {
            transform: translateX(5px);
        }

        .yb-nav-wrapper {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 18, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(168, 227, 46, 0.15);
            box-shadow: 0 4px 20px rgba(15, 23, 18, 0.3);
        }

        .yb-top-strip {
            background: var(--yb-accent);
            color: var(--yb-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 6px 0;
            letter-spacing: 0.03em;
            text-align: center;
            position: relative;
            z-index: 1001;
        }

        .yb-top-strip__inner {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .yb-top-strip .yb-badge {
            background: var(--yb-alert);
            color: #fff;
            font-size: 0.7rem;
            padding: 2px 10px;
        }

        .yb-navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 24px;
        }

        .yb-navbar__logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--yb-white);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .yb-navbar__logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--yb-accent);
            color: var(--yb-primary);
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .yb-navbar__links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
            padding: 0;
        }

        .yb-navbar__links li {
            list-style: none;
        }

        .yb-navbar__link {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            border-radius: 8px;
            transition: all var(--yb-transition);
            gap: 4px;
        }

        .yb-navbar__link:hover,
        .yb-navbar__link:focus {
            color: var(--yb-accent);
            background: rgba(168, 227, 46, 0.08);
        }

        .yb-navbar__link--active {
            color: var(--yb-accent);
            background: rgba(168, 227, 46, 0.12);
            font-weight: 600;
        }

        .yb-navbar__cta {
            flex-shrink: 0;
        }

        .yb-navbar-toggle {
            display: none;
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            border-radius: 8px;
            color: var(--yb-white);
            width: 44px;
            height: 40px;
            font-size: 1.2rem;
            transition: all var(--yb-transition);
            align-items: center;
            justify-content: center;
        }

        .yb-navbar-toggle:hover,
        .yb-navbar-toggle:focus {
            border-color: var(--yb-accent);
            color: var(--yb-accent);
        }

        .yb-mobile-menu {
            display: none;
            background: var(--yb-primary);
            border-top: 1px solid rgba(168, 227, 46, 0.15);
            padding: 12px 0;
        }

        .yb-mobile-menu__link {
            display: block;
            padding: 12px 24px;
            font-size: 1rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
            border-radius: 8px;
            transition: all var(--yb-transition);
        }

        .yb-mobile-menu__link:hover,
        .yb-mobile-menu__link--active {
            color: var(--yb-accent);
            background: rgba(168, 227, 46, 0.1);
        }

        .yb-mobile-menu__cta {
            display: block;
            margin: 8px 24px;
            padding: 14px;
            border-radius: 12px;
            background: var(--yb-accent);
            color: var(--yb-primary);
            font-weight: 700;
            text-align: center;
            transition: all var(--yb-transition);
        }

        .yb-hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: var(--yb-primary);
            overflow: hidden;
            padding: 64px 0 80px;
        }

        .yb-hero__bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            z-index: 1;
        }

        .yb-hero__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(15, 23, 17, 0.95) 30%, rgba(15, 23, 17, 0.78) 65%, rgba(15, 23, 17, 0.55) 100%);
            z-index: 2;
        }

        .yb-hero__content {
            position: relative;
            z-index: 3;
            width: 100%;
        }

        .yb-hero__title {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 1rem;
        }

        .yb-hero__title .highlight {
            color: var(--yb-accent);
        }

        .yb-hero__subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 520px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        .yb-hero__meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 1.5rem;
        }

        .yb-hero__ctas {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .yb-hero__right {
            position: relative;
            z-index: 3;
        }

        .yb-countdown-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(168, 227, 46, 0.25);
            border-radius: var(--yb-radius-lg);
            padding: 32px;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
        }

        .yb-countdown-card__label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
            font-weight: 500;
            letter-spacing: 0.04em;
        }

        .yb-countdown-card__numbers {
            display: flex;
            gap: 20px;
            justify-content: center;
        }

        .yb-countdown-card__unit {
            text-align: center;
        }

        .yb-countdown-card__value {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--yb-accent);
            font-family: var(--yb-font-mono);
            line-height: 1.2;
            display: block;
        }

        .yb-countdown-card__unit-label {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

        .yb-hero__tag-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .yb-hero__status-dots {
            display: flex;
            gap: 6px;
            align-items: center;
            margin-top: 12px;
        }

        .yb-hero__status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--yb-accent);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        .yb-hero__status-dot--pause {
            animation-delay: 0.6s;
        }

        .yb-hero__status-dot--slow {
            animation-delay: 1.2s;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }

        .yb-service-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 24px;
        }

        .yb-service-card {
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: 18px;
            padding: 32px;
            transition: all var(--yb-transition);
            position: relative;
            overflow: hidden;
        }

        .yb-service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--yb-shadow-hover);
            border-color: var(--yb-accent);
        }

        .yb-service-card--large {
            grid-row: span 2;
        }

        .yb-service-card__number {
            font-size: 3.5rem;
            font-weight: 800;
            color: rgba(168, 227, 46, 0.25);
            font-family: var(--yb-font-mono);
            line-height: 1;
            position: absolute;
            top: 20px;
            right: 24px;
            z-index: 0;
        }

        .yb-service-card__icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--yb-accent);
            color: var(--yb-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }

        .yb-service-card__title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--yb-primary);
            position: relative;
            z-index: 1;
        }

        .yb-service-card__text {
            font-size: 0.95rem;
            color: var(--yb-text-secondary);
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }

        .yb-service-sub-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .yb-service-sub-card {
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: 14px;
            padding: 24px;
            transition: all var(--yb-transition);
        }

        .yb-service-sub-card:hover {
            border-color: var(--yb-accent);
            box-shadow: var(--yb-shadow-sm);
            transform: translateY(-2px);
        }

        .yb-service-sub-card__title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--yb-primary);
            margin-bottom: 8px;
        }

        .yb-service-sub-card__text {
            font-size: 0.85rem;
            color: var(--yb-text-secondary);
            line-height: 1.7;
        }

        .yb-stats-band {
            background: var(--yb-primary);
            padding: 48px 0;
            border-radius: var(--yb-radius-lg);
            margin-top: 40px;
        }

        .yb-stats-band__inner {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .yb-stat-item {
            padding: 16px;
        }

        .yb-stat-item__value {
            font-size: 3rem;
            font-weight: 800;
            color: var(--yb-accent);
            font-family: var(--yb-font-mono);
            line-height: 1.2;
            display: block;
            margin-bottom: 4px;
        }

        .yb-stat-item__label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            font-weight: 500;
        }

        .yb-case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .yb-case-card {
            background: var(--yb-white);
            border-radius: var(--yb-radius);
            overflow: hidden;
            border: 1px solid var(--yb-border);
            box-shadow: var(--yb-shadow-sm);
            transition: all var(--yb-transition);
        }

        .yb-case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--yb-shadow-hover);
            border-color: var(--yb-accent);
        }

        .yb-case-card__img-wrap {
            position: relative;
            overflow: hidden;
            height: 200px;
        }

        .yb-case-card__img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .yb-case-card:hover .yb-case-card__img {
            transform: scale(1.05);
        }

        .yb-case-card__date-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--yb-accent);
            color: var(--yb-primary);
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.03em;
        }

        .yb-case-card__body {
            padding: 24px;
        }

        .yb-brand-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .yb-brand-block__img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            border-radius: var(--yb-radius-lg);
            box-shadow: var(--yb-shadow);
        }

        .yb-brand-block__title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--yb-primary);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .yb-brand-block__text {
            font-size: 1rem;
            color: var(--yb-text-secondary);
            line-height: 1.9;
        }

        .yb-brand-block__text p {
            margin-bottom: 16px;
        }

        .yb-plan-content {
            max-width: 900px;
        }

        .yb-plan-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--yb-primary);
            margin-top: 32px;
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .yb-plan-content p {
            color: var(--yb-text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .yb-plan-content ul {
            padding-left: 24px;
            list-style: disc;
            color: var(--yb-text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .yb-plan-content ul li {
            margin-bottom: 8px;
            padding-left: 4px;
        }

        .yb-news-layout {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 32px;
        }

        .yb-news-list-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--yb-border);
            transition: all var(--yb-transition);
        }

        .yb-news-list-item:first-child {
            padding-top: 0;
        }

        .yb-news-list-item:hover {
            padding-left: 8px;
            border-bottom-color: var(--yb-accent);
        }

        .yb-news-list-item__img {
            width: 160px;
            height: 100px;
            object-fit: cover;
            border-radius: 10px;
            flex-shrink: 0;
        }

        .yb-news-list-item__content {
            flex: 1;
        }

        .yb-news-list-item__date {
            font-size: 0.75rem;
            color: var(--yb-text-muted);
            font-weight: 500;
            letter-spacing: 0.04em;
        }

        .yb-news-list-item__title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--yb-primary);
            line-height: 1.5;
            margin: 4px 0 8px;
        }

        .yb-news-list-item__summary {
            font-size: 0.85rem;
            color: var(--yb-text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .yb-news-list-item__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--yb-primary);
            margin-top: 8px;
            transition: all var(--yb-transition);
        }

        .yb-news-list-item__link:hover {
            color: var(--yb-accent);
        }

        .yb-news-recommend {
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: var(--yb-radius);
            padding: 28px;
            box-shadow: var(--yb-shadow-sm);
            height: fit-content;
            position: sticky;
            top: 100px;
        }

        .yb-news-recommend__title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--yb-primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .yb-news-recommend__item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--yb-border);
        }

        .yb-news-recommend__item:last-child {
            border-bottom: none;
        }

        .yb-news-recommend__item-num {
            font-size: 1.4rem;
            font-weight: 800;
            color: rgba(168, 227, 46, 0.5);
            font-family: var(--yb-font-mono);
            width: 32px;
            flex-shrink: 0;
        }

        .yb-news-recommend__item-text {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--yb-primary);
            line-height: 1.5;
            transition: color var(--yb-transition);
        }

        .yb-news-recommend__item:hover .yb-news-recommend__item-text {
            color: var(--yb-accent);
        }

        .yb-faq {
            max-width: 800px;
            margin: 0 auto;
        }

        .yb-faq .accordion-item {
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: 14px !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--yb-shadow-sm);
            transition: all var(--yb-transition);
        }

        .yb-faq .accordion-item:hover {
            border-color: var(--yb-accent);
        }

        .yb-faq .accordion-button {
            background: #F9FBF7;
            color: var(--yb-primary);
            font-weight: 700;
            font-size: 1rem;
            padding: 20px 24px;
            border-radius: 14px;
            box-shadow: none;
            transition: all var(--yb-transition);
            letter-spacing: 0.01em;
        }

        .yb-faq .accordion-button:not(.collapsed) {
            background: var(--yb-white);
            color: var(--yb-primary);
            box-shadow: none;
            border-bottom: 1px solid var(--yb-border);
            border-radius: 14px 14px 0 0 !important;
        }

        .yb-faq .accordion-button:focus {
            border-color: var(--yb-accent);
            box-shadow: 0 0 0 4px var(--yb-accent-glow);
        }

        .yb-faq .accordion-button::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            background: none;
            color: var(--yb-accent);
            font-size: 0.8rem;
            transition: transform var(--yb-transition);
        }

        .yb-faq .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--yb-primary);
        }

        .yb-faq .accordion-body {
            padding: 20px 24px;
            color: var(--yb-text-secondary);
            line-height: 1.9;
            font-size: 0.95rem;
            background: var(--yb-white);
            border-radius: 0 0 14px 14px;
        }

        .yb-contact-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: start;
        }

        .yb-contact-info {
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: var(--yb-radius-lg);
            padding: 36px;
            box-shadow: var(--yb-shadow-sm);
        }

        .yb-contact-info__title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--yb-primary);
            margin-bottom: 16px;
        }

        .yb-contact-info__item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid var(--yb-border);
        }

        .yb-contact-info__item:last-child {
            border-bottom: none;
        }

        .yb-contact-info__item-icon {
            width: 36px;
            height: 36px;
            background: var(--yb-accent);
            color: var(--yb-primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1rem;
        }

        .yb-contact-info__item-label {
            font-size: 0.75rem;
            color: var(--yb-text-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .yb-contact-info__item-value {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--yb-primary);
        }

        .yb-contact-form {
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: var(--yb-radius-lg);
            padding: 36px;
            box-shadow: var(--yb-shadow-sm);
        }

        .yb-contact-form .form-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--yb-primary);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }

        .yb-contact-form .form-control,
        .yb-contact-form .form-select {
            border: 1px solid var(--yb-border);
            border-radius: 10px;
            padding: 12px 16px;
            font-size: 0.95rem;
            color: var(--yb-text);
            background: #FAFDF8;
            transition: all var(--yb-transition);
            box-shadow: none;
            min-height: 48px;
        }

        .yb-contact-form .form-control:focus,
        .yb-contact-form .form-select:focus {
            border-color: var(--yb-accent);
            box-shadow: 0 0 0 4px var(--yb-accent-glow);
            background: var(--yb-white);
        }

        .yb-contact-form .form-control::placeholder {
            color: var(--yb-text-muted);
            font-size: 0.9rem;
        }

        .yb-contact-form .form-select {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%235F6B62' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
            background-size: 14px 10px;
            cursor: pointer;
        }

        .yb-contact-form textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }

        .yb-footer {
            background: var(--yb-primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
            border-top: 2px solid rgba(168, 227, 46, 0.2);
        }

        .yb-footer__top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .yb-footer__brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .yb-footer__brand .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--yb-accent);
            color: var(--yb-primary);
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .yb-footer__desc {
            font-size: 0.85rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
        }

        .yb-footer__heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .yb-footer__links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .yb-footer__link {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            transition: all var(--yb-transition);
        }

        .yb-footer__link:hover,
        .yb-footer__link:focus {
            color: var(--yb-accent);
            padding-left: 6px;
        }

        .yb-footer__bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .yb-footer__bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--yb-transition);
        }

        .yb-footer__bottom a:hover {
            color: var(--yb-accent);
        }

        .yb-divider {
            border: none;
            border-top: 1px solid var(--yb-border);
            margin: 0;
        }

        .yb-divider--dark {
            border-top-color: rgba(255, 255, 255, 0.1);
        }

        @media (max-width: 1200px) {
            .yb-container {
                padding: 0 20px;
            }
            .yb-hero__title {
                font-size: 2.6rem;
            }
            .yb-service-grid {
                grid-template-columns: 1fr;
            }
            .yb-service-card--large {
                grid-row: auto;
            }
            .yb-stat-item__value {
                font-size: 2.4rem;
            }
            .yb-footer__top {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 991px) {
            :root {
                --yb-section-gap: 64px;
            }
            .yb-navbar__links {
                display: none;
            }
            .yb-navbar__cta {
                display: none;
            }
            .yb-navbar-toggle {
                display: flex;
            }
            .yb-mobile-menu {
                display: block;
            }
            .yb-hero {
                min-height: auto;
                padding: 56px 0 64px;
            }
            .yb-hero__title {
                font-size: 2.2rem;
            }
            .yb-hero__right {
                margin-top: 36px;
            }
            .yb-countdown-card__numbers {
                gap: 16px;
            }
            .yb-countdown-card__value {
                font-size: 2rem;
            }
            .yb-case-grid {
                grid-template-columns: 1fr 1fr;
            }
            .yb-brand-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .yb-brand-block__img {
                height: 280px;
            }
            .yb-news-layout {
                grid-template-columns: 1fr;
            }
            .yb-news-recommend {
                position: static;
                order: -1;
            }
            .yb-contact-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .yb-section {
                padding: var(--yb-section-gap-mobile) 0;
            }
            .yb-container {
                padding: 0 16px;
            }
            .yb-hero__title {
                font-size: 1.8rem;
            }
            .yb-hero__subtitle {
                font-size: 1rem;
                max-width: 100%;
            }
            .yb-section-title {
                font-size: 1.6rem;
            }
            .yb-service-grid {
                grid-template-columns: 1fr;
            }
            .yb-service-sub-grid {
                grid-template-columns: 1fr;
            }
            .yb-stats-band__inner {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .yb-stat-item__value {
                font-size: 2rem;
            }
            .yb-case-grid {
                grid-template-columns: 1fr;
            }
            .yb-news-list-item {
                flex-direction: column;
                gap: 12px;
            }
            .yb-news-list-item__img {
                width: 100%;
                height: 180px;
            }
            .yb-footer__top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .yb-contact-info,
            .yb-contact-form {
                padding: 24px;
            }
            .yb-hero__ctas {
                flex-direction: column;
            }
            .yb-hero__ctas .yb-btn {
                width: 100%;
            }
            .yb-countdown-card {
                padding: 20px;
            }
        }

        @media (max-width: 520px) {
            .yb-hero__title {
                font-size: 1.6rem;
            }
            .yb-stats-band__inner {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .yb-stat-item__value {
                font-size: 1.8rem;
            }
            .yb-stat-item__label {
                font-size: 0.75rem;
            }
            .yb-section-title {
                font-size: 1.4rem;
            }
            .yb-btn--lg {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
        }

/* roulang page: category1 */
:root {
            --yb-primary: #0F1712;
            --yb-primary-light: #1A241D;
            --yb-primary-dark: #080D0A;
            --yb-accent: #A8E32E;
            --yb-accent-light: #C2F24C;
            --yb-accent-glow: rgba(168, 227, 46, 0.25);
            --yb-alert: #FF4F1F;
            --yb-alert-glow: rgba(255, 79, 31, 0.3);
            --yb-bg: #F5F7F2;
            --yb-white: #FFFFFF;
            --yb-border: #E2E6E1;
            --yb-text: #1B211C;
            --yb-text-secondary: #5F6B62;
            --yb-text-muted: #8A958C;
            --yb-radius-sm: 8px;
            --yb-radius: 14px;
            --yb-radius-lg: 20px;
            --yb-shadow-sm: 0 2px 10px rgba(15, 23, 18, 0.04);
            --yb-shadow: 0 6px 20px rgba(15, 23, 18, 0.07);
            --yb-shadow-hover: 0 12px 28px rgba(15, 23, 18, 0.10);
            --yb-shadow-accent: 0 8px 24px rgba(168, 227, 46, 0.18);
            --yb-font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', system-ui, -apple-system, sans-serif;
            --yb-font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Roboto Mono', Consolas, monospace;
            --yb-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --yb-transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --yb-section-gap: 64px;
            --yb-section-gap-mobile: 48px;
            --yb-container-max: 1280px;
        }
        *, *::before, *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--yb-font-family);
            font-size: 16px;
            line-height: 1.85;
            color: var(--yb-text);
            background-color: var(--yb-bg);
            overflow-x: hidden;
            margin: 0;
        }
        a {
            color: var(--yb-primary);
            text-decoration: none;
            transition: color var(--yb-transition);
        }
        a:hover, a:focus {
            color: var(--yb-accent);
        }
        a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
            outline: 3px solid var(--yb-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        .yb-container {
            max-width: var(--yb-container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .yb-section {
            padding: var(--yb-section-gap) 0;
            position: relative;
        }
        .yb-section--dark {
            background: var(--yb-primary);
            color: var(--yb-white);
        }
        .yb-section--light {
            background: var(--yb-bg);
        }
        .yb-section--white {
            background: var(--yb-white);
        }
        .yb-section--accent-bg {
            background: #F0F7E6;
        }
        .yb-section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--yb-primary);
            margin-bottom: 0.5rem;
            line-height: 1.35;
        }
        .yb-section-title--light {
            color: var(--yb-white);
        }
        .yb-section-subtitle {
            font-size: 1rem;
            color: var(--yb-text-secondary);
            max-width: 700px;
            line-height: 1.8;
            margin-bottom: 2.5rem;
        }
        .yb-section-subtitle--light {
            color: rgba(255, 255, 255, 0.7);
        }
        .yb-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            line-height: 1.5;
            background: var(--yb-accent);
            color: var(--yb-primary);
        }
        .yb-badge--alert {
            background: var(--yb-alert);
            color: #fff;
        }
        .yb-badge--outline {
            background: transparent;
            border: 1.5px solid var(--yb-accent);
            color: var(--yb-accent);
        }
        .yb-badge--dark {
            background: var(--yb-primary);
            color: var(--yb-accent);
        }
        .yb-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            line-height: 1.4;
            transition: all var(--yb-transition);
            text-align: center;
            border: 2px solid transparent;
            white-space: nowrap;
        }
        .yb-btn--primary {
            background: var(--yb-accent);
            color: var(--yb-primary);
            border-color: var(--yb-accent);
            box-shadow: var(--yb-shadow-accent);
        }
        .yb-btn--primary:hover, .yb-btn--primary:focus {
            background: var(--yb-primary);
            color: var(--yb-accent);
            border-color: var(--yb-primary);
            box-shadow: 0 10px 32px rgba(15, 23, 18, 0.18);
        }
        .yb-btn--outline {
            background: transparent;
            color: var(--yb-primary);
            border-color: var(--yb-primary);
        }
        .yb-btn--outline:hover, .yb-btn--outline:focus {
            background: var(--yb-primary);
            color: var(--yb-white);
            border-color: var(--yb-primary);
        }
        .yb-btn--outline-light {
            background: transparent;
            color: var(--yb-white);
            border-color: rgba(255, 255, 255, 0.5);
        }
        .yb-btn--outline-light:hover, .yb-btn--outline-light:focus {
            background: var(--yb-white);
            color: var(--yb-primary);
            border-color: var(--yb-white);
        }
        .yb-btn--sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }
        .yb-btn--lg {
            padding: 16px 42px;
            font-size: 1.05rem;
        }
        /* Navbar */
        .yb-navbar-wrapper {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: var(--yb-primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .yb-navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 14px 24px;
            max-width: var(--yb-container-max);
            margin: 0 auto;
        }
        .yb-navbar__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--yb-white) !important;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--yb-accent);
            color: var(--yb-primary);
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .yb-navbar__links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .yb-navbar__link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75) !important;
            border-radius: 8px;
            transition: all var(--yb-transition);
            white-space: nowrap;
        }
        .yb-navbar__link:hover, .yb-navbar__link:focus {
            color: var(--yb-accent) !important;
            background: rgba(168, 227, 46, 0.08);
        }
        .yb-navbar__link--active {
            color: var(--yb-accent) !important;
            background: rgba(168, 227, 46, 0.12);
            font-weight: 700;
        }
        .yb-navbar__cta {
            flex-shrink: 0;
        }
        .yb-navbar-toggle {
            display: none;
            background: transparent;
            color: var(--yb-white);
            font-size: 1.4rem;
            padding: 6px 10px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        /* Hero */
        .yb-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background: var(--yb-primary);
            overflow: hidden;
        }
        .yb-hero__bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.45;
        }
        .yb-hero__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 18, 0.92) 0%, rgba(15, 23, 18, 0.55) 100%);
        }
        .yb-hero__content {
            position: relative;
            z-index: 2;
            max-width: 780px;
            padding: 60px 0;
        }
        .yb-hero__title {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--yb-white);
            line-height: 1.3;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }
        .yb-hero__subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.78);
            line-height: 1.8;
            margin-bottom: 1.8rem;
            max-width: 600px;
        }
        .yb-hero__actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        /* Filter bar */
        .yb-filter-bar {
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: var(--yb-radius);
            box-shadow: var(--yb-shadow-sm);
            padding: 20px 24px;
            margin-bottom: 2.5rem;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            justify-content: space-between;
        }
        .yb-filter-bar__group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }
        .yb-filter-bar__label {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--yb-text-secondary);
            margin-right: 4px;
        }
        .yb-filter-btn {
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1.5px solid var(--yb-border);
            background: var(--yb-white);
            color: var(--yb-text-secondary);
            transition: all var(--yb-transition);
        }
        .yb-filter-btn:hover, .yb-filter-btn:focus {
            border-color: var(--yb-accent);
            color: var(--yb-primary);
            background: #F0F7E6;
        }
        .yb-filter-btn--active {
            background: var(--yb-accent);
            color: var(--yb-primary);
            border-color: var(--yb-accent);
            font-weight: 700;
        }
        /* News cards */
        .yb-news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
        }
        .yb-news-card {
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: var(--yb-radius-lg);
            overflow: hidden;
            box-shadow: var(--yb-shadow-sm);
            transition: all var(--yb-transition);
            display: flex;
            flex-direction: column;
        }
        .yb-news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--yb-shadow-hover);
            border-color: rgba(168, 227, 46, 0.5);
        }
        .yb-news-card__img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #E8ECE7;
        }
        .yb-news-card__img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--yb-transition-slow);
        }
        .yb-news-card:hover .yb-news-card__img {
            transform: scale(1.04);
        }
        .yb-news-card__date-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 23, 18, 0.85);
            color: var(--yb-accent);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }
        .yb-news-card__tag {
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--yb-alert);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }
        .yb-news-card__body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .yb-news-card__title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--yb-primary);
            line-height: 1.5;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .yb-news-card__excerpt {
            font-size: 0.9rem;
            color: var(--yb-text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .yb-news-card__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--yb-primary);
            transition: all var(--yb-transition);
        }
        .yb-news-card__link i {
            transition: transform var(--yb-transition);
        }
        .yb-news-card__link:hover, .yb-news-card__link:focus {
            color: var(--yb-accent);
        }
        .yb-news-card__link:hover i {
            transform: translateX(4px);
        }
        /* Feature card */
        .yb-news-card--feature {
            grid-column: span 2;
            flex-direction: row;
        }
        .yb-news-card--feature .yb-news-card__img-wrap {
            width: 45%;
            aspect-ratio: auto;
            min-height: 260px;
            flex-shrink: 0;
        }
        .yb-news-card--feature .yb-news-card__body {
            padding: 30px 32px;
        }
        .yb-news-card--feature .yb-news-card__title {
            font-size: 1.4rem;
        }
        /* Pagination */
        .yb-pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin-top: 3rem;
            flex-wrap: wrap;
        }
        .yb-pagination__item {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            font-size: 0.9rem;
            font-weight: 700;
            border: 1.5px solid var(--yb-border);
            background: var(--yb-white);
            color: var(--yb-text-secondary);
            transition: all var(--yb-transition);
        }
        .yb-pagination__item:hover, .yb-pagination__item:focus {
            border-color: var(--yb-accent);
            color: var(--yb-primary);
            background: #F0F7E6;
        }
        .yb-pagination__item--active {
            background: var(--yb-accent);
            color: var(--yb-primary);
            border-color: var(--yb-accent);
        }
        /* Mini stats strip */
        .yb-stats-strip {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            padding: 28px 0;
        }
        .yb-stat-item {
            text-align: center;
            padding: 20px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--yb-radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .yb-stat-item__number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--yb-accent);
            font-family: var(--yb-font-mono);
            letter-spacing: -0.02em;
            line-height: 1.3;
        }
        .yb-stat-item__label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }
        /* CTA */
        .yb-cta-box {
            background: var(--yb-primary);
            border-radius: var(--yb-radius-lg);
            padding: 48px 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .yb-cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(168, 227, 46, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .yb-cta-box__title {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--yb-white);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .yb-cta-box__desc {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 500px;
            line-height: 1.8;
        }
        .yb-cta-box__actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        /* Footer */
        .yb-footer {
            background: var(--yb-primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 24px;
        }
        .yb-footer__top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            margin-bottom: 40px;
        }
        .yb-footer__brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--yb-white);
            margin-bottom: 14px;
        }
        .yb-footer__desc {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .yb-footer__heading {
            font-size: 1rem;
            font-weight: 700;
            color: var(--yb-white);
            margin-bottom: 16px;
        }
        .yb-footer__links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .yb-footer__link {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--yb-transition);
            display: inline-block;
        }
        .yb-footer__link:hover, .yb-footer__link:focus {
            color: var(--yb-accent);
        }
        .yb-footer__bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .yb-footer__bottom a {
            color: rgba(255, 255, 255, 0.65);
        }
        .yb-footer__bottom a:hover, .yb-footer__bottom a:focus {
            color: var(--yb-accent);
        }
        /* Mobile menu */
        .yb-mobile-menu {
            display: none;
            background: var(--yb-primary-light);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 16px 24px;
        }
        .yb-mobile-menu__links {
            display: flex;
            flex-direction: column;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .yb-mobile-menu__link {
            padding: 12px 16px;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75) !important;
            border-radius: 10px;
            transition: all var(--yb-transition);
            display: block;
        }
        .yb-mobile-menu__link:hover, .yb-mobile-menu__link:focus {
            color: var(--yb-accent) !important;
            background: rgba(168, 227, 46, 0.08);
        }
        .yb-mobile-menu__link--active {
            color: var(--yb-accent) !important;
            background: rgba(168, 227, 46, 0.12);
            font-weight: 700;
        }
        /* Responsive */
        @media (max-width: 992px) {
            .yb-navbar__links {
                display: none;
            }
            .yb-navbar-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .yb-navbar__cta {
                display: none;
            }
            .yb-mobile-menu.show {
                display: block;
            }
            .yb-hero__title {
                font-size: 2rem;
            }
            .yb-news-card--feature {
                grid-column: span 1;
                flex-direction: column;
            }
            .yb-news-card--feature .yb-news-card__img-wrap {
                width: 100%;
                min-height: auto;
                aspect-ratio: 16/9;
            }
            .yb-footer__top {
                grid-template-columns: 1fr 1fr;
            }
            .yb-cta-box {
                padding: 36px 32px;
            }
        }
        @media (max-width: 768px) {
            .yb-news-grid {
                grid-template-columns: 1fr;
            }
            .yb-news-card--feature {
                grid-column: span 1;
                flex-direction: column;
            }
            .yb-news-card--feature .yb-news-card__img-wrap {
                width: 100%;
                aspect-ratio: 16/9;
                min-height: auto;
            }
            .yb-hero__title {
                font-size: 1.7rem;
            }
            .yb-hero__subtitle {
                font-size: 0.95rem;
            }
            .yb-section {
                padding: var(--yb-section-gap-mobile) 0;
            }
            .yb-section-title {
                font-size: 1.6rem;
            }
            .yb-container {
                padding: 0 16px;
            }
            .yb-footer__top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .yb-cta-box {
                padding: 28px 20px;
                flex-direction: column;
                text-align: center;
            }
            .yb-cta-box__actions {
                justify-content: center;
            }
            .yb-cta-box__title {
                font-size: 1.3rem;
            }
            .yb-filter-bar {
                padding: 16px 18px;
            }
        }
        @media (max-width: 520px) {
            .yb-hero {
                min-height: 360px;
            }
            .yb-hero__content {
                padding: 40px 0;
            }
            .yb-hero__title {
                font-size: 1.45rem;
            }
            .yb-btn {
                padding: 10px 22px;
                font-size: 0.85rem;
            }
            .yb-btn--lg {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
            .yb-news-card__body {
                padding: 18px 18px 20px;
            }
            .yb-news-card--feature .yb-news-card__body {
                padding: 22px 20px;
            }
            .yb-news-card--feature .yb-news-card__title {
                font-size: 1.15rem;
            }
            .yb-pagination__item {
                width: 38px;
                height: 38px;
                font-size: 0.8rem;
            }
        }

/* roulang page: category3 */
:root {
 --yb-primary: #0F1712;
 --yb-primary-light: #1A241D;
 --yb-primary-dark: #080D0A;
 --yb-accent: #A8E32E;
 --yb-accent-light: #C2F24C;
 --yb-accent-glow: rgba(168, 227, 46, 0.25);
 --yb-alert: #FF4F1F;
 --yb-alert-glow: rgba(255, 79, 31, 0.3);
 --yb-bg: #F5F7F2;
 --yb-white: #FFFFFF;
 --yb-border: #E2E6E1;
 --yb-text: #1B211C;
 --yb-text-secondary: #5F6B62;
 --yb-text-muted: #8A958C;
 --yb-radius-sm: 8px;
 --yb-radius: 14px;
 --yb-radius-lg: 20px;
 --yb-shadow-sm: 0 2px 10px rgba(15, 23, 18, 0.04);
 --yb-shadow: 0 6px 20px rgba(15, 23, 18, 0.07);
 --yb-shadow-hover: 0 12px 28px rgba(15, 23, 18, 0.10);
 --yb-shadow-accent: 0 8px 24px rgba(168, 227, 46, 0.18);
 --yb-font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', system-ui, -apple-system, sans-serif;
 --yb-font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Roboto Mono', Consolas, monospace;
 --yb-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
 --yb-transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
 --yb-section-gap: 64px;
 --yb-section-gap-mobile: 48px;
 --yb-container-max: 1280px;
}
* {
 box-sizing: border-box;
 margin: 0;
 padding: 0;
}
html {
 scroll-behavior: smooth;
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;
}
body {
 font-family: var(--yb-font-family);
 font-size: 16px;
 line-height: 1.85;
 color: var(--yb-text);
 background-color: var(--yb-bg);
 overflow-x: hidden;
}
a {
 color: var(--yb-primary);
 text-decoration: none;
 transition: color var(--yb-transition);
}
a:hover,
a:focus {
 color: var(--yb-accent);
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
 outline: 3px solid var(--yb-accent);
 outline-offset: 2px;
 border-radius: 4px;
}
img {
 max-width: 100%;
 height: auto;
 display: block;
}
button {
 cursor: pointer;
 border: none;
 background: none;
 font-family: inherit;
}
.yb-container {
 max-width: var(--yb-container-max);
 margin: 0 auto;
 padding: 0 24px;
}
.yb-section {
 padding: var(--yb-section-gap) 0;
 position: relative;
}
.yb-section--dark {
 background: var(--yb-primary);
 color: var(--yb-white);
}
.yb-section--light {
 background: var(--yb-bg);
}
.yb-section--white {
 background: var(--yb-white);
}
.yb-section--accent-bg {
 background: #F0F7E6;
}
.yb-section-title {
 font-size: 2rem;
 font-weight: 800;
 letter-spacing: -0.01em;
 color: var(--yb-primary);
 margin-bottom: 0.5rem;
 line-height: 1.35;
}
.yb-section-title--light {
 color: var(--yb-white);
}
.yb-section-subtitle {
 font-size: 1rem;
 color: var(--yb-text-secondary);
 max-width: 680px;
 line-height: 1.8;
 margin-bottom: 2.5rem;
}
.yb-section-subtitle--light {
 color: rgba(255, 255, 255, 0.7);
}
.yb-badge {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 padding: 4px 14px;
 border-radius: 999px;
 font-size: 0.8rem;
 font-weight: 600;
 letter-spacing: 0.02em;
 line-height: 1.5;
 background: var(--yb-accent);
 color: var(--yb-primary);
}
.yb-badge--alert {
 background: var(--yb-alert);
 color: #fff;
}
.yb-badge--outline {
 background: transparent;
 border: 1.5px solid var(--yb-accent);
 color: var(--yb-accent);
}
.yb-badge--dark {
 background: var(--yb-primary);
 color: var(--yb-accent);
}
.yb-badge--sm {
 font-size: 0.7rem;
 padding: 2px 10px;
}
.yb-badge--md {
 font-size: 0.85rem;
 padding: 6px 16px;
}
.yb-btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 8px;
 padding: 12px 32px;
 border-radius: 999px;
 font-weight: 700;
 font-size: 0.95rem;
 letter-spacing: 0.02em;
 line-height: 1.4;
 transition: all var(--yb-transition);
 text-align: center;
 border: 2px solid transparent;
 white-space: nowrap;
}
.yb-btn--primary {
 background: var(--yb-accent);
 color: var(--yb-primary);
 border-color: var(--yb-accent);
 box-shadow: var(--yb-shadow-accent);
}
.yb-btn--primary:hover,
.yb-btn--primary:focus {
 background: var(--yb-primary);
 color: var(--yb-accent);
 border-color: var(--yb-primary);
 box-shadow: 0 10px 32px rgba(15,23,18,0.22);
}
.yb-btn--secondary {
 background: transparent;
 color: var(--yb-primary);
 border-color: var(--yb-primary);
}
.yb-btn--secondary:hover,
.yb-btn--secondary:focus {
 background: var(--yb-primary);
 color: #fff;
 border-color: var(--yb-primary);
}
.yb-btn--light {
 background: #fff;
 color: var(--yb-primary);
 border-color: #fff;
}
.yb-btn--light:hover,
.yb-btn--light:focus {
 background: transparent;
 color: #fff;
 border-color: #fff;
}
.yb-btn--sm {
 padding: 8px 20px;
 font-size: 0.85rem;
}
.yb-btn--lg {
 padding: 16px 44px;
 font-size: 1.05rem;
}
.yb-btn--link {
 background: transparent;
 border: none;
 color: var(--yb-primary);
 padding: 0;
 font-weight: 700;
 gap: 4px;
}
.yb-btn--link:hover {
 color: var(--yb-accent);
}
.yb-btn--link .fa-arrow-right,
.yb-btn--link .fa-chevron-right {
 transition: transform var(--yb-transition);
}
.yb-btn--link:hover .fa-arrow-right,
.yb-btn--link:hover .fa-chevron-right {
 transform: translateX(4px);
}
/* Navigation */
.yb-header {
 position: sticky;
 top: 0;
 z-index: 1000;
 background: rgba(15, 23, 18, 0.97);
 backdrop-filter: blur(12px);
 -webkit-backdrop-filter: blur(12px);
 border-bottom: 1px solid rgba(168, 227, 46, 0.15);
 box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}
.yb-navbar {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 24px;
 padding: 14px 24px;
 max-width: var(--yb-container-max);
 margin: 0 auto;
 min-height: 68px;
}
.yb-navbar__logo {
 display: flex;
 align-items: center;
 gap: 10px;
 font-size: 1.25rem;
 font-weight: 800;
 color: #fff;
 letter-spacing: 0.01em;
 white-space: nowrap;
 flex-shrink: 0;
}
.yb-navbar__logo:hover {
 color: var(--yb-accent);
}
.yb-navbar__logo .logo-icon {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 width: 36px;
 height: 36px;
 background: var(--yb-accent);
 color: var(--yb-primary);
 border-radius: 10px;
 font-size: 1.05rem;
 font-weight: 800;
 flex-shrink: 0;
}
.yb-navbar__links {
 display: flex;
 align-items: center;
 gap: 6px;
 list-style: none;
 margin: 0;
 padding: 0;
 flex-wrap: wrap;
}
.yb-navbar__link {
 display: inline-flex;
 align-items: center;
 padding: 8px 14px;
 font-size: 0.9rem;
 font-weight: 600;
 color: rgba(255, 255, 255, 0.82);
 border-radius: 999px;
 transition: all var(--yb-transition);
 white-space: nowrap;
 position: relative;
}
.yb-navbar__link:hover {
 color: var(--yb-accent);
 background: rgba(168, 227, 46, 0.08);
}
.yb-navbar__link--active {
 color: var(--yb-primary);
 background: var(--yb-accent);
 font-weight: 700;
}
.yb-navbar__link--active:hover {
 color: var(--yb-primary);
 background: var(--yb-accent-light);
}
.yb-navbar__cta {
 flex-shrink: 0;
}
.yb-navbar-toggle {
 display: none;
 align-items: center;
 justify-content: center;
 width: 40px;
 height: 40px;
 border-radius: 10px;
 background: rgba(255, 255, 255, 0.06);
 color: #fff;
 font-size: 1.2rem;
 border: 1px solid rgba(255, 255, 255, 0.15);
 transition: all var(--yb-transition);
 flex-shrink: 0;
}
.yb-navbar-toggle:hover {
 background: rgba(168, 227, 46, 0.15);
 border-color: var(--yb-accent);
 color: var(--yb-accent);
}
.yb-mobile-menu {
 display: none;
 background: var(--yb-primary-dark);
 border-bottom: 1px solid rgba(168, 227, 46, 0.15);
 padding: 16px 24px 24px;
}
.yb-mobile-menu__links {
 display: flex;
 flex-direction: column;
 gap: 4px;
 list-style: none;
 margin: 0;
 padding: 0;
}
.yb-mobile-menu__link {
 display: block;
 padding: 12px 16px;
 font-size: 0.95rem;
 font-weight: 600;
 color: rgba(255, 255, 255, 0.82);
 border-radius: 10px;
 transition: all var(--yb-transition);
}
.yb-mobile-menu__link:hover {
 color: var(--yb-accent);
 background: rgba(168, 227, 46, 0.08);
}
.yb-mobile-menu__link--active {
 color: var(--yb-primary);
 background: var(--yb-accent);
}
.yb-mobile-menu__cta {
 margin-top: 12px;
}
/* Hero (inner page) */
.yb-hero-inner {
 position: relative;
 min-height: 420px;
 display: flex;
 align-items: center;
 background-size: cover;
 background-position: center 30%;
 background-repeat: no-repeat;
 overflow: hidden;
}
.yb-hero-inner::before {
 content: '';
 position: absolute;
 inset: 0;
 background: linear-gradient(135deg, rgba(15, 23, 18, 0.92) 0%, rgba(15, 23, 18, 0.65) 50%, rgba(15, 23, 18, 0.85) 100%);
 z-index: 1;
}
.yb-hero-inner__content {
 position: relative;
 z-index: 2;
 width: 100%;
 max-width: var(--yb-container-max);
 margin: 0 auto;
 padding: 60px 24px;
}
.yb-hero-inner__badge-row {
 display: flex;
 flex-wrap: wrap;
 gap: 8px;
 margin-bottom: 18px;
}
.yb-hero-inner__title {
 font-size: 2.6rem;
 font-weight: 800;
 color: #fff;
 line-height: 1.25;
 margin-bottom: 16px;
 letter-spacing: -0.01em;
 max-width: 700px;
}
.yb-hero-inner__title em {
 font-style: normal;
 color: var(--yb-accent);
}
.yb-hero-inner__desc {
 font-size: 1.1rem;
 color: rgba(255, 255, 255, 0.8);
 max-width: 620px;
 line-height: 1.8;
 margin-bottom: 28px;
}
.yb-hero-inner__actions {
 display: flex;
 flex-wrap: wrap;
 gap: 14px;
}
/* Section header variants */
.yb-section-header {
 margin-bottom: 2.5rem;
}
.yb-section-header--flex {
 display: flex;
 align-items: flex-end;
 justify-content: space-between;
 flex-wrap: wrap;
 gap: 16px;
}
.yb-section-header__badge {
 margin-bottom: 10px;
}
.yb-section-header__title {
 font-size: 2rem;
 font-weight: 800;
 letter-spacing: -0.01em;
 color: var(--yb-primary);
 margin-bottom: 0.4rem;
 line-height: 1.35;
}
.yb-section-header__title--light {
 color: #fff;
}
.yb-section-header__subtitle {
 font-size: 1rem;
 color: var(--yb-text-secondary);
 max-width: 680px;
 line-height: 1.8;
 margin-bottom: 0;
}
.yb-section-header__subtitle--light {
 color: rgba(255, 255, 255, 0.7);
}
/* Cards */
.yb-card {
 background: var(--yb-white);
 border: 1px solid var(--yb-border);
 border-radius: var(--yb-radius);
 box-shadow: var(--yb-shadow-sm);
 transition: all var(--yb-transition);
 overflow: hidden;
}
.yb-card:hover {
 transform: translateY(-4px);
 box-shadow: var(--yb-shadow-hover);
 border-color: var(--yb-accent);
}
.yb-card__media {
 position: relative;
 overflow: hidden;
 aspect-ratio: 16/9;
}
.yb-card__media img {
 width: 100%;
 height: 100%;
 object-fit: cover;
 transition: transform var(--yb-transition-slow);
}
.yb-card:hover .yb-card__media img {
 transform: scale(1.05);
}
.yb-card__body {
 padding: 24px 28px;
}
.yb-card__date {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 font-size: 0.8rem;
 font-weight: 600;
 color: var(--yb-text-secondary);
 margin-bottom: 10px;
}
.yb-card__title {
 font-size: 1.15rem;
 font-weight: 700;
 color: var(--yb-primary);
 line-height: 1.45;
 margin-bottom: 10px;
}
.yb-card__title a {
 color: inherit;
}
.yb-card__title a:hover {
 color: var(--yb-accent);
}
.yb-card__excerpt {
 font-size: 0.9rem;
 color: var(--yb-text-secondary);
 line-height: 1.75;
 margin-bottom: 16px;
 display: -webkit-box;
 -webkit-line-clamp: 3;
 -webkit-box-orient: vertical;
 overflow: hidden;
}
.yb-card__footer {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
}
.yb-card__tag {
 font-size: 0.7rem;
 font-weight: 700;
 padding: 3px 10px;
 border-radius: 999px;
 background: #F0F7E6;
 color: #4A7200;
 letter-spacing: 0.03em;
}
.yb-card__tag--alert {
 background: rgba(255, 79, 31, 0.1);
 color: var(--yb-alert);
}
/* Schedule filter */
.yb-filter-bar {
 background: var(--yb-white);
 border: 1px solid var(--yb-border);
 border-radius: var(--yb-radius);
 box-shadow: var(--yb-shadow-sm);
 padding: 20px 24px;
 display: flex;
 flex-wrap: wrap;
 align-items: center;
 gap: 12px;
 margin-bottom: 32px;
}
.yb-filter-bar__label {
 font-size: 0.85rem;
 font-weight: 700;
 color: var(--yb-text-secondary);
 flex-shrink: 0;
}
.yb-filter-bar__tags {
 display: flex;
 flex-wrap: wrap;
 gap: 8px;
}
.yb-filter-tag {
 padding: 7px 18px;
 border-radius: 999px;
 font-size: 0.85rem;
 font-weight: 600;
 background: var(--yb-bg);
 color: var(--yb-text-secondary);
 border: 1.5px solid var(--yb-border);
 transition: all var(--yb-transition);
 white-space: nowrap;
}
.yb-filter-tag:hover {
 border-color: var(--yb-accent);
 color: var(--yb-primary);
}
.yb-filter-tag--active {
 background: var(--yb-primary);
 border-color: var(--yb-primary);
 color: var(--yb-accent);
}
.yb-filter-bar__search {
 flex: 1;
 min-width: 200px;
 display: flex;
 gap: 8px;
}
.yb-filter-bar__input {
 flex: 1;
 border: 1.5px solid var(--yb-border);
 border-radius: 999px;
 padding: 8px 18px;
 font-size: 0.9rem;
 font-family: inherit;
 color: var(--yb-text);
 background: var(--yb-bg);
 transition: all var(--yb-transition);
 min-width: 0;
}
.yb-filter-bar__input:focus {
 outline: none;
 border-color: var(--yb-accent);
 box-shadow: 0 0 0 3px var(--yb-accent-glow);
}
/* Schedule list */
.yb-schedule-grid {
 display: grid;
 grid-template-columns: repeat(3, 1fr);
 gap: 24px;
}
.yb-schedule-grid--featured .yb-card:first-child {
 grid-column: span 2;
}
.yb-schedule-grid--featured .yb-card:first-child .yb-card__media {
 aspect-ratio: 21/9;
}
.yb-schedule-grid--featured .yb-card:first-child .yb-card__title {
 font-size: 1.35rem;
}
/* Stat band */
.yb-stat-band {
 background: var(--yb-primary);
 border-radius: var(--yb-radius-lg);
 padding: 40px 36px;
 display: grid;
 grid-template-columns: repeat(4, 1fr);
 gap: 24px;
 border: 1px solid rgba(168, 227, 46, 0.2);
}
.yb-stat-item {
 text-align: center;
}
.yb-stat-item__number {
 font-family: var(--yb-font-mono);
 font-size: 2.6rem;
 font-weight: 800;
 color: var(--yb-accent);
 line-height: 1.2;
}
.yb-stat-item__label {
 font-size: 0.85rem;
 color: rgba(255, 255, 255, 0.7);
 margin-top: 4px;
}
/* Process */
.yb-process-row {
 display: grid;
 grid-template-columns: repeat(4, 1fr);
 gap: 20px;
}
.yb-process-step {
 background: var(--yb-white);
 border: 1px solid var(--yb-border);
 border-radius: var(--yb-radius);
 padding: 28px 24px;
 box-shadow: var(--yb-shadow-sm);
 transition: all var(--yb-transition);
 position: relative;
}
.yb-process-step:hover {
 transform: translateY(-4px);
 box-shadow: var(--yb-shadow-hover);
 border-color: var(--yb-accent);
}
.yb-process-step__num {
 font-family: var(--yb-font-mono);
 font-size: 1rem;
 font-weight: 800;
 color: var(--yb-accent);
 background: var(--yb-primary);
 display: inline-flex;
 align-items: center;
 justify-content: center;
 width: 40px;
 height: 40px;
 border-radius: 10px;
 margin-bottom: 14px;
}
.yb-process-step__title {
 font-size: 1.05rem;
 font-weight: 700;
 color: var(--yb-primary);
 margin-bottom: 8px;
}
.yb-process-step__desc {
 font-size: 0.9rem;
 color: var(--yb-text-secondary);
 line-height: 1.75;
}
/* FAQ */
.yb-accordion .accordion-item {
 border: 1px solid var(--yb-border);
 border-radius: var(--yb-radius) !important;
 overflow: hidden;
 margin-bottom: 14px;
 background: var(--yb-white);
 box-shadow: var(--yb-shadow-sm);
}
.yb-accordion .accordion-button {
 background: #F8FAF6;
 color: var(--yb-primary);
 font-weight: 700;
 font-size: 0.95rem;
 padding: 18px 24px;
 border: none;
 border-radius: var(--yb-radius) !important;
 box-shadow: none;
 transition: all var(--yb-transition);
}
.yb-accordion .accordion-button:not(.collapsed) {
 background: var(--yb-primary);
 color: var(--yb-accent);
}
.yb-accordion .accordion-button:focus {
 box-shadow: none;
 border-color: var(--yb-accent);
}
.yb-accordion .accordion-button::after {
 background-size: 16px;
 transition: all var(--yb-transition);
}
.yb-accordion .accordion-button:not(.collapsed)::after {
 filter: brightness(0) invert(1);
}
.yb-accordion .accordion-body {
 background: var(--yb-white);
 color: var(--yb-text-secondary);
 font-size: 0.92rem;
 line-height: 1.8;
 padding: 18px 24px;
}
/* CTA */
.yb-cta-band {
 background: linear-gradient(135deg, var(--yb-primary) 0%, #1A241D 60%, #0F1712 100%);
 border-radius: var(--yb-radius-lg);
 padding: 56px 48px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 32px;
 flex-wrap: wrap;
 border: 1px solid rgba(168, 227, 46, 0.25);
 position: relative;
 overflow: hidden;
}
.yb-cta-band::after {
 content: '';
 position: absolute;
 right: -60px;
 top: -60px;
 width: 240px;
 height: 240px;
 border-radius: 50%;
 background: rgba(168, 227, 46, 0.08);
 pointer-events: none;
}
.yb-cta-band__text {
 flex: 1;
 min-width: 280px;
}
.yb-cta-band__title {
 font-size: 1.6rem;
 font-weight: 800;
 color: #fff;
 margin-bottom: 8px;
}
.yb-cta-band__desc {
 font-size: 0.95rem;
 color: rgba(255, 255, 255, 0.7);
 line-height: 1.75;
}
.yb-cta-band__actions {
 display: flex;
 gap: 14px;
 flex-wrap: wrap;
}
/* Footer */
.yb-footer {
 background: var(--yb-primary-dark);
 color: rgba(255, 255, 255, 0.75);
 padding: 56px 0 24px;
 border-top: 3px solid var(--yb-accent);
}
.yb-footer__container {
 max-width: var(--yb-container-max);
 margin: 0 auto;
 padding: 0 24px;
}
.yb-footer__top {
 display: grid;
 grid-template-columns: 2fr 1.2fr 1.2fr 1.4fr;
 gap: 36px;
 margin-bottom: 36px;
}
.yb-footer__brand {
 display: flex;
 align-items: center;
 gap: 10px;
 font-size: 1.15rem;
 font-weight: 800;
 color: #fff;
 margin-bottom: 14px;
}
.yb-footer__brand .logo-icon {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 width: 32px;
 height: 32px;
 background: var(--yb-accent);
 color: var(--yb-primary);
 border-radius: 8px;
 font-size: 0.9rem;
 font-weight: 800;
}
.yb-footer__desc {
 font-size: 0.88rem;
 line-height: 1.8;
 color: rgba(255, 255, 255, 0.6);
 max-width: 360px;
}
.yb-footer__heading {
 font-size: 0.9rem;
 font-weight: 700;
 color: #fff;
 margin-bottom: 14px;
 letter-spacing: 0.03em;
}
.yb-footer__links {
 display: flex;
 flex-direction: column;
 gap: 8px;
}
.yb-footer__link {
 font-size: 0.88rem;
 color: rgba(255, 255, 255, 0.6);
 transition: color var(--yb-transition);
}
.yb-footer__link:hover {
 color: var(--yb-accent);
}
.yb-footer__bottom {
 display: flex;
 flex-wrap: wrap;
 align-items: center;
 gap: 10px;
 font-size: 0.8rem;
 color: rgba(255, 255, 255, 0.45);
 border-top: 1px solid rgba(255, 255, 255, 0.08);
 padding-top: 20px;
}
.yb-footer__bottom a {
 color: rgba(255, 255, 255, 0.55);
}
.yb-footer__bottom a:hover {
 color: var(--yb-accent);
}
.yb-footer__bottom span {
 display: inline-flex;
 align-items: center;
}
/* Responsive */
@media (max-width: 1024px) {
 .yb-schedule-grid {
 grid-template-columns: repeat(2, 1fr);
 }
 .yb-schedule-grid--featured .yb-card:first-child {
 grid-column: span 2;
 }
 .yb-stat-band {
 grid-template-columns: repeat(2, 1fr);
 gap: 20px;
 }
 .yb-process-row {
 grid-template-columns: repeat(2, 1fr);
 }
 .yb-footer__top {
 grid-template-columns: 1fr 1fr;
 gap: 28px;
 }
}
@media (max-width: 768px) {
 :root {
 --yb-section-gap: 48px;
 }
 .yb-navbar__links {
 display: none;
 }
 .yb-navbar-toggle {
 display: flex;
 }
 .yb-navbar__cta {
 display: none;
 }
 .yb-mobile-menu.is-open {
 display: block;
 }
 .yb-hero-inner {
 min-height: 340px;
 }
 .yb-hero-inner__title {
 font-size: 1.9rem;
 }
 .yb-hero-inner__desc {
 font-size: 0.95rem;
 }
 .yb-hero-inner__content {
 padding: 48px 16px;
 }
 .yb-section {
 padding: var(--yb-section-gap-mobile) 0;
 }
 .yb-container {
 padding: 0 16px;
 }
 .yb-section-title {
 font-size: 1.5rem;
 }
 .yb-schedule-grid {
 grid-template-columns: 1fr;
 }
 .yb-schedule-grid--featured .yb-card:first-child {
 grid-column: auto;
 }
 .yb-schedule-grid--featured .yb-card:first-child .yb-card__media {
 aspect-ratio: 16/9;
 }
 .yb-stat-band {
 grid-template-columns: repeat(2, 1fr);
 padding: 28px 20px;
 }
 .yb-process-row {
 grid-template-columns: 1fr;
 }
 .yb-cta-band {
 padding: 36px 24px;
 flex-direction: column;
 text-align: left;
 }
 .yb-cta-band__actions {
 width: 100%;
 }
 .yb-footer__top {
 grid-template-columns: 1fr;
 gap: 24px;
 }
 .yb-filter-bar {
 padding: 16px;
 flex-direction: column;
 align-items: flex-start;
 }
 .yb-filter-bar__search {
 width: 100%;
 }
 .yb-card__body {
 padding: 18px 18px;
 }
}
@media (max-width: 520px) {
 .yb-hero-inner {
 min-height: 280px;
 }
 .yb-hero-inner__title {
 font-size: 1.5rem;
 }
 .yb-hero-inner__actions {
 flex-direction: column;
 gap: 10px;
 }
 .yb-hero-inner__actions .yb-btn {
 width: 100%;
 }
 .yb-stat-band {
 grid-template-columns: 1fr 1fr;
 gap: 16px;
 padding: 24px 16px;
 }
 .yb-stat-item__number {
 font-size: 1.8rem;
 }
 .yb-card__title {
 font-size: 1rem;
 }
 .yb-footer__bottom {
 flex-direction: column;
 align-items: flex-start;
 gap: 6px;
 }
}

/* roulang page: category2 */
:root {
            --yb-primary: #0F1712;
            --yb-primary-light: #1A241D;
            --yb-primary-dark: #080D0A;
            --yb-accent: #A8E32E;
            --yb-accent-light: #C2F24C;
            --yb-accent-glow: rgba(168, 227, 46, 0.25);
            --yb-alert: #FF4F1F;
            --yb-alert-glow: rgba(255, 79, 31, 0.3);
            --yb-bg: #F5F7F2;
            --yb-white: #FFFFFF;
            --yb-border: #E2E6E1;
            --yb-text: #1B211C;
            --yb-text-secondary: #5F6B62;
            --yb-text-muted: #8A958C;
            --yb-radius-sm: 8px;
            --yb-radius: 14px;
            --yb-radius-lg: 20px;
            --yb-shadow-sm: 0 2px 10px rgba(15, 23, 18, 0.04);
            --yb-shadow: 0 6px 20px rgba(15, 23, 18, 0.07);
            --yb-shadow-hover: 0 12px 28px rgba(15, 23, 18, 0.10);
            --yb-shadow-accent: 0 8px 24px rgba(168, 227, 46, 0.18);
            --yb-font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', system-ui, -apple-system, sans-serif;
            --yb-font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Roboto Mono', Consolas, monospace;
            --yb-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --yb-transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --yb-section-gap: 64px;
            --yb-section-gap-mobile: 40px;
            --yb-container-max: 1280px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--yb-font-family);
            font-size: 16px;
            line-height: 1.85;
            color: var(--yb-text);
            background-color: var(--yb-bg);
            overflow-x: hidden;
        }

        a {
            color: var(--yb-primary);
            text-decoration: none;
            transition: color var(--yb-transition);
        }
        a:hover,
        a:focus {
            color: var(--yb-accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--yb-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        .yb-container {
            max-width: var(--yb-container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .yb-section {
            padding: var(--yb-section-gap) 0;
            position: relative;
        }
        .yb-section--dark {
            background: var(--yb-primary);
            color: var(--yb-white);
        }
        .yb-section--light {
            background: var(--yb-bg);
        }
        .yb-section--white {
            background: var(--yb-white);
        }
        .yb-section--accent-bg {
            background: #F0F7E6;
        }

        .yb-section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--yb-primary);
            margin-bottom: 0.5rem;
            line-height: 1.35;
        }
        .yb-section-title--light {
            color: var(--yb-white);
        }
        .yb-section-subtitle {
            font-size: 1rem;
            color: var(--yb-text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 2.5rem;
        }
        .yb-section-subtitle--light {
            color: rgba(255, 255, 255, 0.7);
        }

        .yb-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            line-height: 1.5;
            background: var(--yb-accent);
            color: var(--yb-primary);
        }
        .yb-badge--alert {
            background: var(--yb-alert);
            color: #fff;
        }
        .yb-badge--outline {
            background: transparent;
            border: 1.5px solid var(--yb-accent);
            color: var(--yb-accent);
        }
        .yb-badge--dark {
            background: var(--yb-primary);
            color: var(--yb-accent);
        }
        .yb-badge--sm {
            font-size: 0.7rem;
            padding: 2px 10px;
        }
        .yb-badge--md {
            font-size: 0.85rem;
            padding: 6px 16px;
        }

        .yb-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            line-height: 1.4;
            transition: all var(--yb-transition);
            text-align: center;
            border: 2px solid transparent;
            white-space: nowrap;
        }
        .yb-btn--primary {
            background: var(--yb-accent);
            color: var(--yb-primary);
            border-color: var(--yb-accent);
            box-shadow: var(--yb-shadow-accent);
        }
        .yb-btn--primary:hover,
        .yb-btn--primary:focus {
            background: var(--yb-primary);
            color: var(--yb-accent);
            border-color: var(--yb-primary);
            box-shadow: 0 10px 32px rgba(15, 23, 18, 0.18);
            transform: translateY(-2px);
        }
        .yb-btn--secondary {
            background: transparent;
            color: var(--yb-white);
            border-color: rgba(255, 255, 255, 0.5);
        }
        .yb-btn--secondary:hover,
        .yb-btn--secondary:focus {
            background: var(--yb-white);
            color: var(--yb-primary);
            border-color: var(--yb-white);
        }
        .yb-btn--outline {
            background: transparent;
            color: var(--yb-primary);
            border-color: var(--yb-primary);
        }
        .yb-btn--outline:hover,
        .yb-btn--outline:focus {
            background: var(--yb-primary);
            color: var(--yb-white);
            border-color: var(--yb-primary);
        }
        .yb-btn--sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }
        .yb-btn--lg {
            padding: 16px 40px;
            font-size: 1.05rem;
        }

        .yb-text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--yb-primary);
            transition: all var(--yb-transition);
        }
        .yb-text-link i {
            transition: transform var(--yb-transition);
        }
        .yb-text-link:hover,
        .yb-text-link:focus {
            color: var(--yb-accent);
        }
        .yb-text-link:hover i,
        .yb-text-link:focus i {
            transform: translateX(5px);
        }

        /* ========== 顶部状态条 ========== */
        .yb-topbar {
            background: var(--yb-primary-dark);
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.78rem;
            padding: 6px 0;
            line-height: 1.5;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .yb-topbar__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .yb-topbar__left {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .yb-topbar__right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .yb-topbar__item {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .yb-live-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--yb-alert);
            animation: ybPulse 1.2s ease-in-out infinite;
        }
        @keyframes ybPulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.8);
            }
        }
        .yb-countdown {
            font-family: var(--yb-font-mono);
            font-weight: 700;
            color: var(--yb-accent);
            letter-spacing: 0.03em;
        }

        /* ========== 导航 ========== */
        .yb-header {
            background: var(--yb-primary);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .yb-navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding-top: 14px;
            padding-bottom: 14px;
            flex-wrap: wrap;
        }
        .yb-navbar__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--yb-white);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--yb-transition);
        }
        .yb-navbar__logo:hover,
        .yb-navbar__logo:focus {
            color: var(--yb-accent);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--yb-accent);
            color: var(--yb-primary);
            font-size: 1.15rem;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(168, 227, 46, 0.35);
        }
        .yb-navbar__links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .yb-navbar__link {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 0.88rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.78);
            transition: all var(--yb-transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .yb-navbar__link:hover,
        .yb-navbar__link:focus {
            color: var(--yb-accent);
            background: rgba(168, 227, 46, 0.1);
        }
        .yb-navbar__link--active {
            color: var(--yb-accent);
            background: rgba(168, 227, 46, 0.15);
            position: relative;
        }
        .yb-navbar__link--active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 4px;
            background: var(--yb-accent);
        }
        .yb-navbar__cta {
            flex-shrink: 0;
        }
        .yb-navbar-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            color: var(--yb-white);
            font-size: 1.2rem;
            transition: all var(--yb-transition);
        }
        .yb-navbar-toggle:hover {
            border-color: var(--yb-accent);
            color: var(--yb-accent);
        }
        .yb-mobile-menu {
            display: none;
            background: var(--yb-primary-light);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 12px 0 20px;
        }
        .yb-mobile-menu__links {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 0;
            margin: 0;
            list-style: none;
        }
        .yb-mobile-menu__link {
            display: block;
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 0.92rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.82);
            transition: all var(--yb-transition);
        }
        .yb-mobile-menu__link:hover,
        .yb-mobile-menu__link:focus {
            color: var(--yb-accent);
            background: rgba(168, 227, 46, 0.1);
        }
        .yb-mobile-menu__link--active {
            color: var(--yb-accent);
            background: rgba(168, 227, 46, 0.15);
        }
        .yb-mobile-menu__cta {
            margin: 12px 16px 0;
            width: fit-content;
        }

        /* ========== Hero ========== */
        .yb-hero {
            position: relative;
            min-height: 72vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .yb-hero__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 18, 0.92) 0%, rgba(15, 23, 18, 0.75) 45%, rgba(8, 13, 10, 0.88) 100%);
            z-index: 1;
        }
        .yb-hero__content {
            position: relative;
            z-index: 2;
            padding: 72px 0;
            width: 100%;
        }
        .yb-hero__inner {
            display: flex;
            align-items: flex-start;
            gap: 48px;
            flex-wrap: wrap;
        }
        .yb-hero__left {
            flex: 1 1 55%;
            min-width: 300px;
        }
        .yb-hero__right {
            flex: 1 1 35%;
            min-width: 280px;
        }
        .yb-hero__badges {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .yb-hero__title {
            font-size: 3rem;
            font-weight: 800;
            color: var(--yb-white);
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
        }
        .yb-hero__title .yb-highlight {
            color: var(--yb-accent);
        }
        .yb-hero__subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 520px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .yb-hero__actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .yb-hero__meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .yb-hero__meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.65);
        }
        .yb-hero__meta-item .fa-solid {
            color: var(--yb-accent);
            font-size: 0.9rem;
        }

        /* Hero数据卡 */
        .yb-hero-card {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--yb-radius-lg);
            padding: 24px;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
        }
        .yb-hero-card__header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 14px;
        }
        .yb-hero-card__title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--yb-white);
        }
        .yb-hero-card__list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .yb-hero-card__item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 10px 14px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            transition: all var(--yb-transition);
        }
        .yb-hero-card__item:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .yb-hero-card__rank {
            font-family: var(--yb-font-mono);
            font-weight: 800;
            font-size: 0.9rem;
            color: var(--yb-accent);
            min-width: 28px;
        }
        .yb-hero-card__name {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--yb-white);
            flex: 1;
        }
        .yb-hero-card__value {
            font-family: var(--yb-font-mono);
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--yb-accent);
        }

        /* ========== 筛选工具区 ========== */
        .yb-filter-card {
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: var(--yb-radius-lg);
            padding: 24px 28px;
            box-shadow: var(--yb-shadow);
            margin-bottom: 8px;
        }
        .yb-filter-card__row {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .yb-filter-card__row:last-child {
            margin-bottom: 0;
        }
        .yb-filter-search {
            position: relative;
            flex: 1 1 260px;
            min-width: 200px;
        }
        .yb-filter-search .fa-solid {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--yb-text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .yb-filter-search input {
            width: 100%;
            padding: 12px 16px 12px 44px;
            border-radius: 999px;
            border: 1.5px solid var(--yb-border);
            background: var(--yb-bg);
            font-family: var(--yb-font-family);
            font-size: 0.9rem;
            color: var(--yb-text);
            transition: all var(--yb-transition);
        }
        .yb-filter-search input:focus {
            border-color: var(--yb-accent);
            background: var(--yb-white);
            box-shadow: 0 0 0 4px var(--yb-accent-glow);
        }
        .yb-filter-search input::placeholder {
            color: var(--yb-text-muted);
        }
        .yb-filter-select {
            padding: 12px 20px;
            border-radius: 999px;
            border: 1.5px solid var(--yb-border);
            background: var(--yb-bg);
            font-family: var(--yb-font-family);
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--yb-text);
            cursor: pointer;
            transition: all var(--yb-transition);
            min-width: 140px;
        }
        .yb-filter-select:focus {
            border-color: var(--yb-accent);
            background: var(--yb-white);
            box-shadow: 0 0 0 4px var(--yb-accent-glow);
        }
        .yb-filter-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .yb-filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 8px 18px;
            border-radius: 999px;
            border: 1.5px solid var(--yb-border);
            background: var(--yb-white);
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--yb-text-secondary);
            cursor: pointer;
            transition: all var(--yb-transition);
            letter-spacing: 0.01em;
        }
        .yb-filter-tag:hover,
        .yb-filter-tag:focus {
            border-color: var(--yb-accent);
            color: var(--yb-accent);
        }
        .yb-filter-tag--active {
            background: var(--yb-accent);
            border-color: var(--yb-accent);
            color: var(--yb-primary);
            box-shadow: var(--yb-shadow-accent);
        }
        .yb-filter-result-count {
            font-size: 0.85rem;
            color: var(--yb-text-secondary);
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        /* ========== 数据卡片网格 ========== */
        .yb-data-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 8px;
        }
        .yb-data-card {
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: var(--yb-radius);
            overflow: hidden;
            box-shadow: var(--yb-shadow-sm);
            transition: all var(--yb-transition-slow);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .yb-data-card:hover {
            box-shadow: var(--yb-shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(168, 227, 46, 0.5);
        }
        .yb-data-card__cover {
            width: 100%;
            height: 180px;
            overflow: hidden;
            position: relative;
            flex-shrink: 0;
        }
        .yb-data-card__cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--yb-transition-slow);
        }
        .yb-data-card:hover .yb-data-card__cover img {
            transform: scale(1.05);
        }
        .yb-data-card__body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .yb-data-card__date {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.76rem;
            font-weight: 600;
            color: var(--yb-text-muted);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .yb-data-card__date .fa-solid {
            font-size: 0.7rem;
            color: var(--yb-accent);
        }
        .yb-data-card__title {
            font-size: 1.06rem;
            font-weight: 700;
            color: var(--yb-primary);
            line-height: 1.45;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }
        .yb-data-card__excerpt {
            font-size: 0.88rem;
            color: var(--yb-text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .yb-data-card__footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
        }
        .yb-data-card__tag {
            display: inline-flex;
            align-items: center;
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--yb-text-muted);
            letter-spacing: 0.03em;
        }
        .yb-data-card__btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--yb-primary);
            transition: all var(--yb-transition);
            white-space: nowrap;
        }
        .yb-data-card__btn i {
            transition: transform var(--yb-transition);
            font-size: 0.75rem;
        }
        .yb-data-card__btn:hover,
        .yb-data-card__btn:focus {
            color: var(--yb-accent);
        }
        .yb-data-card__btn:hover i,
        .yb-data-card__btn:focus i {
            transform: translateX(5px);
        }

        /* 水平大卡 */
        .yb-data-card--horizontal {
            flex-direction: row;
            grid-column: 1 / -1;
            min-height: 200px;
        }
        .yb-data-card--horizontal .yb-data-card__cover {
            width: 36%;
            height: auto;
            min-height: 200px;
        }
        .yb-data-card--horizontal .yb-data-card__body {
            padding: 24px 28px;
            flex: 1;
        }
        .yb-data-card--horizontal .yb-data-card__title {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }
        .yb-data-card--horizontal .yb-data-card__excerpt {
            -webkit-line-clamp: 4;
            font-size: 0.92rem;
        }

        /* 无封面卡片 */
        .yb-data-card--no-cover .yb-data-card__body {
            padding-top: 22px;
        }

        /* ========== 分页 ========== */
        .yb-pagination-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--yb-border);
        }
        .yb-pagination-info {
            font-size: 0.85rem;
            color: var(--yb-text-secondary);
            font-weight: 500;
        }
        .yb-pagination {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .yb-pagination__item {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1.5px solid var(--yb-border);
            background: var(--yb-white);
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--yb-text-secondary);
            cursor: pointer;
            transition: all var(--yb-transition);
            padding: 0 12px;
        }
        .yb-pagination__item:hover,
        .yb-pagination__item:focus {
            border-color: var(--yb-accent);
            color: var(--yb-accent);
        }
        .yb-pagination__item--active {
            background: var(--yb-primary);
            border-color: var(--yb-primary);
            color: var(--yb-accent);
            box-shadow: 0 4px 14px rgba(15, 23, 18, 0.3);
        }
        .yb-pagination__item--disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ========== 数据亮点统计带 ========== */
        .yb-stats-band {
            background: var(--yb-primary);
            border-radius: var(--yb-radius-lg);
            padding: 32px 36px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 16px;
        }
        .yb-stat-item {
            text-align: center;
            padding: 4px 8px;
        }
        .yb-stat-item__number {
            font-family: var(--yb-font-mono);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--yb-accent);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .yb-stat-item__label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            margin-top: 4px;
        }

        /* ========== FAQ ========== */
        .yb-accordion .accordion-item {
            border: 1px solid var(--yb-border);
            border-radius: var(--yb-radius) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--yb-shadow-sm);
            background: var(--yb-white);
        }
        .yb-accordion .accordion-button {
            background: var(--yb-bg);
            color: var(--yb-text);
            font-weight: 700;
            font-size: 0.98rem;
            padding: 18px 24px;
            border-radius: 0;
            box-shadow: none;
            letter-spacing: 0.01em;
            transition: all var(--yb-transition);
        }
        .yb-accordion .accordion-button:not(.collapsed) {
            background: var(--yb-primary);
            color: var(--yb-accent);
            box-shadow: none;
        }
        .yb-accordion .accordion-button::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            background-image: none;
            width: auto;
            height: auto;
            font-size: 0.8rem;
            transition: transform var(--yb-transition);
        }
        .yb-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--yb-accent);
        }
        .yb-accordion .accordion-button:focus {
            box-shadow: 0 0 0 4px var(--yb-accent-glow);
        }
        .yb-accordion .accordion-body {
            padding: 20px 24px;
            font-size: 0.92rem;
            color: var(--yb-text-secondary);
            line-height: 1.85;
            background: var(--yb-white);
        }

        /* ========== CTA ========== */
        .yb-cta-box {
            background: linear-gradient(135deg, var(--yb-primary) 0%, #1E2D24 50%, var(--yb-primary-dark) 100%);
            border-radius: var(--yb-radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .yb-cta-box::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(168, 227, 46, 0.08);
            pointer-events: none;
        }
        .yb-cta-box__content {
            flex: 1 1 400px;
            min-width: 280px;
            position: relative;
            z-index: 1;
        }
        .yb-cta-box__title {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--yb-white);
            line-height: 1.3;
            margin-bottom: 8px;
        }
        .yb-cta-box__desc {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.72);
            line-height: 1.7;
            max-width: 520px;
        }
        .yb-cta-box__actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* ========== Footer ========== */
        .yb-footer {
            background: var(--yb-primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding-top: 56px;
            padding-bottom: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .yb-footer__top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .yb-footer__brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--yb-white);
            margin-bottom: 14px;
        }
        .yb-footer__desc {
            font-size: 0.85rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 340px;
            margin-bottom: 0;
        }
        .yb-footer__heading {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--yb-white);
            letter-spacing: 0.04em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .yb-footer__links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .yb-footer__link {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--yb-transition);
            line-height: 1.6;
        }
        .yb-footer__link:hover,
        .yb-footer__link:focus {
            color: var(--yb-accent);
        }
        .yb-footer__bottom {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            padding-top: 20px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 0.02em;
        }
        .yb-footer__bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--yb-transition);
        }
        .yb-footer__bottom a:hover,
        .yb-footer__bottom a:focus {
            color: var(--yb-accent);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1200px) {
            .yb-container {
                padding: 0 20px;
            }
            .yb-hero__title {
                font-size: 2.6rem;
            }
            .yb-data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .yb-data-card--horizontal {
                flex-direction: column;
                grid-column: 1 / -1;
            }
            .yb-data-card--horizontal .yb-data-card__cover {
                width: 100%;
                height: 200px;
            }
            .yb-footer__top {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }

        @media (max-width: 992px) {
            .yb-section {
                padding: var(--yb-section-gap-mobile) 0;
            }
            .yb-navbar__links {
                display: none;
            }
            .yb-navbar__cta {
                display: none;
            }
            .yb-navbar-toggle {
                display: flex;
            }
            .yb-mobile-menu {
                display: block;
            }
            .yb-hero {
                min-height: auto;
            }
            .yb-hero__inner {
                flex-direction: column;
                gap: 28px;
            }
            .yb-hero__left,
            .yb-hero__right {
                flex: 1 1 100%;
                min-width: 0;
            }
            .yb-hero__title {
                font-size: 2.2rem;
            }
            .yb-stats-band {
                grid-template-columns: repeat(2, 1fr);
                padding: 24px;
                gap: 20px;
            }
            .yb-stat-item__number {
                font-size: 1.7rem;
            }
            .yb-footer__top {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .yb-cta-box {
                padding: 36px 28px;
            }
        }

        @media (max-width: 768px) {
            .yb-container {
                padding: 0 16px;
            }
            .yb-section-title {
                font-size: 1.6rem;
            }
            .yb-hero__title {
                font-size: 1.9rem;
            }
            .yb-hero__subtitle {
                font-size: 1rem;
            }
            .yb-data-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .yb-data-card--horizontal {
                flex-direction: column;
            }
            .yb-data-card--horizontal .yb-data-card__cover {
                width: 100%;
                height: 180px;
            }
            .yb-data-card--horizontal .yb-data-card__body {
                padding: 18px 20px;
            }
            .yb-filter-card {
                padding: 18px 16px;
            }
            .yb-filter-card__row {
                gap: 10px;
            }
            .yb-filter-select {
                flex: 1 1 100%;
                min-width: 0;
            }
            .yb-stats-band {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
                padding: 20px 16px;
            }
            .yb-stat-item__number {
                font-size: 1.4rem;
            }
            .yb-pagination-wrap {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .yb-cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 20px;
            }
            .yb-cta-box__title {
                font-size: 1.3rem;
            }
            .yb-footer__top {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .yb-footer__bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .yb-topbar__right {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .yb-hero__title {
                font-size: 1.6rem;
            }
            .yb-hero__actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .yb-btn {
                width: 100%;
                justify-content: center;
            }
            .yb-stats-band {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .yb-stat-item__number {
                font-size: 1.6rem;
            }
            .yb-section-title {
                font-size: 1.4rem;
            }
        }

/* roulang page: category4 */
:root {
        --yb-primary: #0F1712;
        --yb-primary-light: #1A241D;
        --yb-primary-dark: #080D0A;
        --yb-accent: #A8E32E;
        --yb-accent-light: #C2F24C;
        --yb-accent-glow: rgba(168, 227, 46, 0.25);
        --yb-alert: #FF4F1F;
        --yb-alert-glow: rgba(255, 79, 31, 0.3);
        --yb-bg: #F5F7F2;
        --yb-white: #FFFFFF;
        --yb-border: #E2E6E1;
        --yb-text: #1B211C;
        --yb-text-secondary: #5F6B62;
        --yb-text-muted: #8A958C;
        --yb-radius-sm: 8px;
        --yb-radius: 14px;
        --yb-radius-lg: 20px;
        --yb-shadow-sm: 0 2px 10px rgba(15, 23, 18, 0.04);
        --yb-shadow: 0 6px 20px rgba(15, 23, 18, 0.07);
        --yb-shadow-hover: 0 12px 28px rgba(15, 23, 18, 0.10);
        --yb-shadow-accent: 0 8px 24px rgba(168, 227, 46, 0.18);
        --yb-font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', system-ui, -apple-system, sans-serif;
        --yb-font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Roboto Mono', Consolas, monospace;
        --yb-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        --yb-transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        --yb-section-gap: 72px;
        --yb-section-gap-mobile: 48px;
        --yb-container-max: 1280px;
    }
    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    body {
        font-family: var(--yb-font-family);
        font-size: 16px;
        line-height: 1.85;
        color: var(--yb-text);
        background-color: var(--yb-bg);
        overflow-x: hidden;
    }
    a {
        color: var(--yb-primary);
        text-decoration: none;
        transition: color var(--yb-transition);
    }
    a:hover, a:focus {
        color: var(--yb-accent);
    }
    a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
        outline: 3px solid var(--yb-accent);
        outline-offset: 2px;
        border-radius: 4px;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button {
        cursor: pointer;
        border: none;
        background: none;
        font-family: inherit;
    }
    .yb-container {
        max-width: var(--yb-container-max);
        margin: 0 auto;
        padding: 0 24px;
    }
    .yb-section {
        padding: var(--yb-section-gap) 0;
        position: relative;
    }
    .yb-section--dark {
        background: var(--yb-primary);
        color: var(--yb-white);
    }
    .yb-section--light {
        background: var(--yb-bg);
    }
    .yb-section--white {
        background: var(--yb-white);
    }
    .yb-section--accent-bg {
        background: #F0F7E6;
    }
    .yb-section-title {
        font-size: 2rem;
        font-weight: 800;
        letter-spacing: -0.01em;
        color: var(--yb-primary);
        margin-bottom: 0.5rem;
        line-height: 1.35;
    }
    .yb-section-title--light {
        color: var(--yb-white);
    }
    .yb-section-subtitle {
        font-size: 1rem;
        color: var(--yb-text-secondary);
        max-width: 680px;
        line-height: 1.8;
        margin-bottom: 2.5rem;
    }
    .yb-section-subtitle--light {
        color: rgba(255, 255, 255, 0.7);
    }
    .yb-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 4px 14px;
        border-radius: 999px;
        font-size: 0.8rem;
        font-weight: 600;
        letter-spacing: 0.02em;
        line-height: 1.5;
        background: var(--yb-accent);
        color: var(--yb-primary);
    }
    .yb-badge--alert {
        background: var(--yb-alert);
        color: #fff;
    }
    .yb-badge--outline {
        background: transparent;
        border: 1.5px solid var(--yb-accent);
        color: var(--yb-accent);
    }
    .yb-badge--dark {
        background: var(--yb-primary);
        color: var(--yb-accent);
    }
    .yb-badge--sm {
        font-size: 0.7rem;
        padding: 2px 10px;
    }
    .yb-badge--md {
        font-size: 0.85rem;
        padding: 6px 16px;
    }
    .yb-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 32px;
        border-radius: 999px;
        font-weight: 700;
        font-size: 0.95rem;
        letter-spacing: 0.02em;
        line-height: 1.4;
        transition: all var(--yb-transition);
        text-align: center;
        border: 2px solid transparent;
        white-space: nowrap;
    }
    .yb-btn--primary {
        background: var(--yb-accent);
        color: var(--yb-primary);
        border-color: var(--yb-accent);
        box-shadow: var(--yb-shadow-accent);
    }
    .yb-btn--primary:hover, .yb-btn--primary:focus {
        background: var(--yb-primary);
        color: var(--yb-accent);
        border-color: var(--yb-primary);
        box-shadow: 0 10px 32px rgba(15, 23, 18, 0.18);
    }
    .yb-btn--secondary {
        background: transparent;
        color: var(--yb-primary);
        border-color: var(--yb-primary);
    }
    .yb-btn--secondary:hover, .yb-btn--secondary:focus {
        background: var(--yb-primary);
        color: var(--yb-white);
        border-color: var(--yb-primary);
    }
    .yb-btn--light {
        background: rgba(255, 255, 255, 0.12);
        color: var(--yb-white);
        border-color: rgba(255, 255, 255, 0.35);
        backdrop-filter: blur(4px);
    }
    .yb-btn--light:hover, .yb-btn--light:focus {
        background: var(--yb-white);
        color: var(--yb-primary);
        border-color: var(--yb-white);
    }
    .yb-btn--sm {
        padding: 8px 20px;
        font-size: 0.85rem;
    }
    .yb-navbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 20px;
        padding: 12px 0;
        background: var(--yb-primary-dark);
        position: sticky;
        top: 0;
        z-index: 1000;
        box-shadow: 0 2px 18px rgba(0, 0, 0, 0.22);
    }
    .yb-navbar__logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.35rem;
        font-weight: 800;
        color: var(--yb-white);
        letter-spacing: 0.02em;
        transition: color var(--yb-transition);
    }
    .yb-navbar__logo:hover, .yb-navbar__logo:focus {
        color: var(--yb-accent);
    }
    .logo-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        background: var(--yb-accent);
        color: var(--yb-primary);
        border-radius: 10px;
        font-size: 1.1rem;
        font-weight: 800;
        flex-shrink: 0;
    }
    .yb-navbar__links {
        display: flex;
        align-items: center;
        gap: 4px;
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .yb-navbar__link {
        display: inline-flex;
        align-items: center;
        padding: 8px 14px;
        font-size: 0.9rem;
        font-weight: 600;
        color: rgba(255, 255, 255, 0.75);
        border-radius: 8px;
        transition: all var(--yb-transition);
        letter-spacing: 0.02em;
        white-space: nowrap;
    }
    .yb-navbar__link:hover {
        color: var(--yb-accent);
        background: rgba(168, 227, 46, 0.08);
    }
    .yb-navbar__link--active {
        color: var(--yb-accent);
        background: rgba(168, 227, 46, 0.14);
    }
    .yb-navbar__cta {
        flex-shrink: 0;
    }
    .yb-navbar-toggle {
        display: none;
        color: var(--yb-white);
        font-size: 1.5rem;
        line-height: 1;
        padding: 6px 10px;
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.08);
        transition: background var(--yb-transition);
    }
    .yb-navbar-toggle:hover {
        background: rgba(255, 255, 255, 0.18);
    }
    .yb-mobile-menu {
        display: none;
        background: var(--yb-primary-dark);
        padding: 16px 0;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .yb-mobile-menu a {
        display: block;
        padding: 12px 24px;
        color: rgba(255, 255, 255, 0.8);
        font-weight: 600;
        font-size: 0.95rem;
        transition: all var(--yb-transition);
    }
    .yb-mobile-menu a:hover {
        color: var(--yb-accent);
        background: rgba(168, 227, 46, 0.08);
    }
    .yb-mobile-menu a.yb-navbar__link--active {
        color: var(--yb-accent);
        background: rgba(168, 227, 46, 0.14);
    }
    .yb-mobile-menu.open {
        display: block;
    }
    .yb-footer {
        background: var(--yb-primary-dark);
        color: rgba(255, 255, 255, 0.75);
        padding: 56px 0 28px;
    }
    .yb-footer__top {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.2fr;
        gap: 36px;
        margin-bottom: 36px;
    }
    .yb-footer__brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.25rem;
        font-weight: 800;
        color: var(--yb-white);
        margin-bottom: 10px;
    }
    .yb-footer__desc {
        font-size: 0.85rem;
        line-height: 1.7;
        color: rgba(255, 255, 255, 0.55);
        max-width: 360px;
    }
    .yb-footer__heading {
        font-size: 0.95rem;
        font-weight: 700;
        color: var(--yb-white);
        margin-bottom: 14px;
    }
    .yb-footer__links {
        display: flex;
        flex-direction: column;
        gap: 6px;
    }
    .yb-footer__link {
        font-size: 0.85rem;
        color: rgba(255, 255, 255, 0.6);
        transition: color var(--yb-transition);
    }
    .yb-footer__link:hover {
        color: var(--yb-accent);
    }
    .yb-footer__bottom {
        display: flex;
        flex-wrap: wrap;
        gap: 8px 12px;
        font-size: 0.78rem;
        color: rgba(255, 255, 255, 0.45);
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding-top: 20px;
        align-items: center;
    }
    .yb-footer__bottom a {
        color: rgba(255, 255, 255, 0.5);
        transition: color var(--yb-transition);
    }
    .yb-footer__bottom a:hover {
        color: var(--yb-accent);
    }
    .yb-hero-category {
        position: relative;
        min-height: 620px;
        display: flex;
        align-items: center;
        background-image: url('/assets/images/backpic/back-1.webp');
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        padding: 80px 0 60px;
    }
    .yb-hero-category::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(8, 13, 10, 0.92) 0%, rgba(15, 23, 18, 0.78) 50%, rgba(8, 13, 10, 0.88) 100%);
        z-index: 1;
    }
    .yb-hero-category__content {
        position: relative;
        z-index: 2;
        width: 100%;
        display: grid;
        grid-template-columns: 1fr 420px;
        gap: 48px;
        align-items: center;
    }
    .yb-hero-category__title {
        font-size: 2.8rem;
        font-weight: 800;
        color: var(--yb-white);
        letter-spacing: -0.015em;
        line-height: 1.2;
        margin-bottom: 16px;
    }
    .yb-hero-category__title em {
        font-style: normal;
        color: var(--yb-accent);
    }
    .yb-hero-category__desc {
        font-size: 1.05rem;
        color: rgba(255, 255, 255, 0.7);
        max-width: 540px;
        line-height: 1.8;
        margin-bottom: 28px;
    }
    .yb-hero-category__actions {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        align-items: center;
        margin-bottom: 20px;
    }
    .yb-countdown-card {
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: var(--yb-radius-lg);
        padding: 28px 24px;
        backdrop-filter: blur(8px);
        box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
    }
    .yb-countdown-card__label {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.8rem;
        font-weight: 700;
        color: var(--yb-accent);
        letter-spacing: 0.05em;
        margin-bottom: 12px;
        text-transform: uppercase;
    }
    .yb-countdown-card__label .live-dot {
        width: 8px;
        height: 8px;
        background: var(--yb-alert);
        border-radius: 50%;
        animation: pulse-dot 1.4s infinite;
    }
    @keyframes pulse-dot {
        0%, 100% { opacity: 1; transform: scale(1); }
        50% { opacity: 0.5; transform: scale(1.3); }
    }
    .yb-countdown-card__timer {
        display: flex;
        gap: 10px;
        margin-bottom: 16px;
    }
    .yb-countdown-unit {
        flex: 1;
        text-align: center;
        background: rgba(255, 255, 255, 0.06);
        border-radius: 10px;
        padding: 10px 4px;
    }
    .yb-countdown-unit__num {
        font-family: var(--yb-font-mono);
        font-size: 1.6rem;
        font-weight: 700;
        color: var(--yb-white);
        line-height: 1.2;
    }
    .yb-countdown-unit__label {
        font-size: 0.7rem;
        color: rgba(255, 255, 255, 0.5);
        letter-spacing: 0.04em;
    }
    .yb-countdown-card__event {
        font-size: 0.85rem;
        color: rgba(255, 255, 255, 0.65);
        line-height: 1.5;
        margin-bottom: 14px;
    }
    .yb-countdown-card__event strong {
        color: var(--yb-white);
    }
    .yb-countdown-card__subscribe {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }
    .yb-countdown-card__subscribe .form-control {
        flex: 1;
        min-width: 160px;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.15);
        color: var(--yb-white);
        border-radius: 999px;
        padding: 10px 16px;
        font-size: 0.85rem;
    }
    .yb-countdown-card__subscribe .form-control::placeholder {
        color: rgba(255, 255, 255, 0.4);
    }
    .yb-countdown-card__subscribe .form-control:focus {
        border-color: var(--yb-accent);
        box-shadow: 0 0 0 3px var(--yb-accent-glow);
        background: rgba(255, 255, 255, 0.12);
    }
    .yb-highlight-events {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 16px;
    }
    .yb-highlight-events .yb-badge {
        font-size: 0.75rem;
    }
    .yb-card {
        background: var(--yb-white);
        border: 1px solid var(--yb-border);
        border-radius: var(--yb-radius);
        box-shadow: var(--yb-shadow-sm);
        overflow: hidden;
        transition: all var(--yb-transition);
        height: 100%;
    }
    .yb-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--yb-shadow-hover);
        border-color: var(--yb-accent);
    }
    .yb-card__img-wrapper {
        position: relative;
        overflow: hidden;
        aspect-ratio: 16/9;
    }
    .yb-card__img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform var(--yb-transition-slow);
    }
    .yb-card:hover .yb-card__img {
        transform: scale(1.04);
    }
    .yb-card__body {
        padding: 20px 24px;
    }
    .yb-card__meta {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
        margin-bottom: 8px;
    }
    .yb-card__title {
        font-size: 1.15rem;
        font-weight: 700;
        color: var(--yb-primary);
        line-height: 1.4;
        margin-bottom: 8px;
    }
    .yb-card__summary {
        font-size: 0.88rem;
        color: var(--yb-text-secondary);
        line-height: 1.7;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .yb-card__link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 0.85rem;
        font-weight: 700;
        color: var(--yb-primary);
        margin-top: 12px;
        transition: all var(--yb-transition);
    }
    .yb-card__link:hover {
        color: var(--yb-accent);
        gap: 10px;
    }
    .yb-card--large .yb-card__body {
        padding: 28px 32px;
    }
    .yb-card--large .yb-card__title {
        font-size: 1.35rem;
    }
    .yb-card--large .yb-card__summary {
        font-size: 0.92rem;
        -webkit-line-clamp: 4;
    }
    .yb-card--featured {
        border: 2px solid var(--yb-accent);
        box-shadow: var(--yb-shadow-accent);
    }
    .yb-step-card {
        text-align: center;
        padding: 32px 24px;
        background: var(--yb-white);
        border-radius: var(--yb-radius);
        border: 1px solid var(--yb-border);
        box-shadow: var(--yb-shadow-sm);
        transition: all var(--yb-transition);
        height: 100%;
    }
    .yb-step-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--yb-shadow-hover);
        border-color: var(--yb-accent);
    }
    .yb-step-card__num {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 48px;
        height: 48px;
        background: var(--yb-accent);
        color: var(--yb-primary);
        border-radius: 12px;
        font-size: 1.3rem;
        font-weight: 800;
        font-family: var(--yb-font-mono);
        margin-bottom: 16px;
    }
    .yb-step-card__title {
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--yb-primary);
        margin-bottom: 8px;
    }
    .yb-step-card__desc {
        font-size: 0.85rem;
        color: var(--yb-text-secondary);
        line-height: 1.7;
    }
    .yb-list-event {
        display: flex;
        gap: 20px;
        padding: 20px 24px;
        background: var(--yb-white);
        border: 1px solid var(--yb-border);
        border-radius: var(--yb-radius);
        box-shadow: var(--yb-shadow-sm);
        margin-bottom: 14px;
        transition: all var(--yb-transition);
        align-items: flex-start;
    }
    .yb-list-event:hover {
        transform: translateX(4px);
        box-shadow: var(--yb-shadow-hover);
        border-color: var(--yb-accent);
    }
    .yb-list-event__img {
        width: 180px;
        height: 120px;
        border-radius: var(--yb-radius-sm);
        object-fit: cover;
        flex-shrink: 0;
    }
    .yb-list-event__content {
        flex: 1;
        min-width: 0;
    }
    .yb-list-event__date {
        font-size: 0.75rem;
        font-weight: 700;
        color: var(--yb-alert);
        letter-spacing: 0.03em;
        display: inline-block;
        margin-bottom: 4px;
    }
    .yb-list-event__title {
        font-size: 1.05rem;
        font-weight: 700;
        color: var(--yb-primary);
        margin-bottom: 6px;
        line-height: 1.4;
    }
    .yb-list-event__summary {
        font-size: 0.85rem;
        color: var(--yb-text-secondary);
        line-height: 1.7;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 8px;
    }
    .yb-list-event__link {
        font-size: 0.82rem;
        font-weight: 700;
        color: var(--yb-primary);
        display: inline-flex;
        align-items: center;
        gap: 4px;
        transition: all var(--yb-transition);
    }
    .yb-list-event__link:hover {
        color: var(--yb-accent);
        gap: 8px;
    }
    .yb-faq .accordion-item {
        border: 1px solid var(--yb-border);
        border-radius: var(--yb-radius) !important;
        margin-bottom: 12px;
        overflow: hidden;
        background: var(--yb-white);
        box-shadow: var(--yb-shadow-sm);
    }
    .yb-faq .accordion-button {
        background: var(--yb-bg);
        color: var(--yb-primary);
        font-weight: 700;
        font-size: 0.95rem;
        padding: 18px 24px;
        border: none;
        box-shadow: none;
        border-radius: var(--yb-radius) !important;
    }
    .yb-faq .accordion-button:not(.collapsed) {
        background: var(--yb-white);
        color: var(--yb-primary);
        box-shadow: none;
    }
    .yb-faq .accordion-button:focus {
        box-shadow: 0 0 0 3px var(--yb-accent-glow);
        border: none;
    }
    .yb-faq .accordion-button::after {
        content: '\2b';
        background: none;
        font-family: 'Font Awesome 6 Free';
        font-weight: 900;
        font-size: 1rem;
        color: var(--yb-primary);
        transition: transform var(--yb-transition);
    }
    .yb-faq .accordion-button:not(.collapsed)::after {
        content: '\f068';
        transform: rotate(0deg);
        color: var(--yb-accent);
    }
    .yb-faq .accordion-body {
        padding: 20px 24px;
        font-size: 0.9rem;
        color: var(--yb-text-secondary);
        line-height: 1.8;
    }
    .yb-cta-form {
        background: var(--yb-white);
        border-radius: var(--yb-radius-lg);
        border: 1px solid var(--yb-border);
        box-shadow: var(--yb-shadow);
        padding: 36px 32px;
    }
    .yb-cta-form .form-label {
        font-size: 0.85rem;
        font-weight: 700;
        color: var(--yb-primary);
        margin-bottom: 4px;
    }
    .yb-cta-form .form-control {
        border: 1px solid var(--yb-border);
        border-radius: 10px;
        padding: 11px 16px;
        font-size: 0.9rem;
        color: var(--yb-text);
        transition: all var(--yb-transition);
        background: var(--yb-bg);
    }
    .yb-cta-form .form-control:focus {
        border-color: var(--yb-primary);
        box-shadow: 0 0 0 3px var(--yb-accent-glow);
        background: var(--yb-white);
    }
    .yb-cta-form .form-select {
        border: 1px solid var(--yb-border);
        border-radius: 10px;
        padding: 11px 16px;
        font-size: 0.9rem;
        transition: all var(--yb-transition);
        background: var(--yb-bg);
    }
    .yb-cta-form .form-select:focus {
        border-color: var(--yb-primary);
        box-shadow: 0 0 0 3px var(--yb-accent-glow);
    }
    .yb-cta-form textarea.form-control {
        min-height: 120px;
        resize: vertical;
    }
    .yb-data-strip {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    .yb-data-item {
        text-align: center;
        padding: 28px 16px;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: var(--yb-radius);
    }
    .yb-data-item__num {
        font-family: var(--yb-font-mono);
        font-size: 2.4rem;
        font-weight: 800;
        color: var(--yb-accent);
        line-height: 1.2;
    }
    .yb-data-item__label {
        font-size: 0.85rem;
        color: rgba(255, 255, 255, 0.65);
        margin-top: 6px;
    }
    .yb-section-header {
        margin-bottom: 36px;
    }
    .yb-section-header--flex {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 20px;
        flex-wrap: wrap;
    }
    .yb-rule-divider {
        width: 56px;
        height: 4px;
        background: var(--yb-accent);
        border-radius: 999px;
        margin-bottom: 14px;
    }
    @media (max-width: 992px) {
        .yb-navbar__links {
            display: none;
        }
        .yb-navbar__cta {
            display: none;
        }
        .yb-navbar-toggle {
            display: inline-flex;
        }
        .yb-hero-category__content {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .yb-hero-category__title {
            font-size: 2.2rem;
        }
        .yb-footer__top {
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .yb-data-strip {
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }
    }
    @media (max-width: 768px) {
        :root {
            --yb-section-gap: 48px;
        }
        .yb-container {
            padding: 0 16px;
        }
        .yb-section-title {
            font-size: 1.5rem;
        }
        .yb-hero-category {
            min-height: auto;
            padding: 60px 0 48px;
        }
        .yb-hero-category__title {
            font-size: 1.75rem;
        }
        .yb-hero-category__desc {
            font-size: 0.92rem;
        }
        .yb-list-event {
            flex-direction: column;
            gap: 14px;
        }
        .yb-list-event__img {
            width: 100%;
            height: 180px;
        }
        .yb-footer__top {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .yb-footer__bottom {
            flex-direction: column;
            align-items: flex-start;
            gap: 6px;
        }
        .yb-data-strip {
            grid-template-columns: repeat(2, 1fr);
        }
        .yb-countdown-card {
            padding: 20px 16px;
        }
        .yb-countdown-unit__num {
            font-size: 1.3rem;
        }
        .yb-cta-form {
            padding: 24px 18px;
        }
    }
    @media (max-width: 520px) {
        .yb-section-title {
            font-size: 1.35rem;
        }
        .yb-hero-category__title {
            font-size: 1.5rem;
        }
        .yb-hero-category__actions {
            flex-direction: column;
            align-items: stretch;
        }
        .yb-btn {
            padding: 10px 20px;
            font-size: 0.85rem;
        }
        .yb-data-strip {
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .yb-data-item__num {
            font-size: 1.8rem;
        }
        .yb-list-event {
            padding: 16px;
        }
    }

/* roulang page: category5 */
:root {
            --yb-primary: #0F1712;
            --yb-primary-light: #1A241D;
            --yb-primary-dark: #080D0A;
            --yb-accent: #A8E32E;
            --yb-accent-light: #C2F24C;
            --yb-accent-glow: rgba(168, 227, 46, 0.25);
            --yb-alert: #FF4F1F;
            --yb-alert-glow: rgba(255, 79, 31, 0.3);
            --yb-bg: #F5F7F2;
            --yb-white: #FFFFFF;
            --yb-border: #E2E6E1;
            --yb-text: #1B211C;
            --yb-text-secondary: #5F6B62;
            --yb-text-muted: #8A958C;
            --yb-radius-sm: 8px;
            --yb-radius: 14px;
            --yb-radius-lg: 20px;
            --yb-shadow-sm: 0 2px 10px rgba(15, 23, 18, 0.04);
            --yb-shadow: 0 6px 20px rgba(15, 23, 18, 0.07);
            --yb-shadow-hover: 0 12px 28px rgba(15, 23, 18, 0.10);
            --yb-shadow-accent: 0 8px 24px rgba(168, 227, 46, 0.18);
            --yb-font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', system-ui, -apple-system, sans-serif;
            --yb-font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Roboto Mono', Consolas, monospace;
            --yb-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --yb-transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --yb-section-gap: 64px;
            --yb-section-gap-mobile: 48px;
            --yb-container-max: 1280px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--yb-font-family);
            font-size: 16px;
            line-height: 1.85;
            color: var(--yb-text);
            background-color: var(--yb-bg);
            overflow-x: hidden;
        }

        a {
            color: var(--yb-primary);
            text-decoration: none;
            transition: color var(--yb-transition);
        }

        a:hover,
        a:focus {
            color: var(--yb-accent);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--yb-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        .yb-container {
            max-width: var(--yb-container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .yb-section {
            padding: var(--yb-section-gap) 0;
            position: relative;
        }

        .yb-section--dark {
            background: var(--yb-primary);
            color: var(--yb-white);
        }

        .yb-section--light {
            background: var(--yb-bg);
        }

        .yb-section--white {
            background: var(--yb-white);
        }

        .yb-section--accent-bg {
            background: #F0F7E6;
        }

        .yb-section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--yb-primary);
            margin-bottom: 0.5rem;
            line-height: 1.35;
        }

        .yb-section-title--light {
            color: var(--yb-white);
        }

        .yb-section-subtitle {
            font-size: 1rem;
            color: var(--yb-text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 2.5rem;
        }

        .yb-section-subtitle--light {
            color: rgba(255, 255, 255, 0.7);
        }

        .yb-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            line-height: 1.5;
            background: var(--yb-accent);
            color: var(--yb-primary);
        }

        .yb-badge--alert {
            background: var(--yb-alert);
            color: #fff;
        }

        .yb-badge--outline {
            background: transparent;
            border: 1.5px solid var(--yb-accent);
            color: var(--yb-accent);
        }

        .yb-badge--dark {
            background: var(--yb-primary);
            color: var(--yb-accent);
        }

        .yb-badge--sm {
            font-size: 0.7rem;
            padding: 2px 10px;
        }

        .yb-badge--md {
            font-size: 0.85rem;
            padding: 6px 16px;
        }

        .yb-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            line-height: 1.4;
            transition: all var(--yb-transition);
            text-align: center;
            border: 2px solid transparent;
            white-space: nowrap;
        }

        .yb-btn--primary {
            background: var(--yb-accent);
            color: var(--yb-primary);
            border-color: var(--yb-accent);
            box-shadow: var(--yb-shadow-accent);
        }

        .yb-btn--primary:hover,
        .yb-btn--primary:focus {
            background: var(--yb-primary);
            color: var(--yb-accent);
            border-color: var(--yb-primary);
            box-shadow: 0 10px 32px rgba(15, 23, 18, 0.15);
        }

        .yb-btn--outline {
            background: transparent;
            color: var(--yb-primary);
            border-color: var(--yb-primary);
        }

        .yb-btn--outline:hover,
        .yb-btn--outline:focus {
            background: var(--yb-primary);
            color: #fff;
            border-color: var(--yb-primary);
        }

        .yb-btn--outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }

        .yb-btn--outline-light:hover,
        .yb-btn--outline-light:focus {
            background: #fff;
            color: var(--yb-primary);
            border-color: #fff;
        }

        .yb-btn--sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }

        .yb-btn--lg {
            padding: 14px 40px;
            font-size: 1.05rem;
        }

        .yb-btn--alert {
            background: var(--yb-alert);
            color: #fff;
            border-color: var(--yb-alert);
            box-shadow: 0 8px 24px rgba(255, 79, 31, 0.25);
        }

        .yb-btn--alert:hover,
        .yb-btn--alert:focus {
            background: #d93d12;
            border-color: #d93d12;
            color: #fff;
            box-shadow: 0 10px 32px rgba(255, 79, 31, 0.35);
        }

        .yb-topbar {
            background: var(--yb-primary-dark);
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.75rem;
            padding: 6px 0;
            position: relative;
            z-index: 1001;
        }

        .yb-topbar__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .yb-topbar__left,
        .yb-topbar__right {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .yb-topbar__live-dot {
            display: inline-block;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--yb-alert);
            animation: ybPulse 1.8s ease-in-out infinite;
            margin-right: 4px;
        }

        @keyframes ybPulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 79, 31, 0.5);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(255, 79, 31, 0);
            }
        }

        .yb-navbar {
            background: var(--yb-primary);
            border-bottom: 2px solid rgba(168, 227, 46, 0.15);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 14px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            transition: box-shadow var(--yb-transition);
        }

        .yb-navbar:hover {
            box-shadow: 0 4px 20px rgba(15, 23, 18, 0.15);
        }

        .yb-navbar__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.02em;
            transition: color var(--yb-transition);
        }

        .yb-navbar__logo:hover,
        .yb-navbar__logo:focus {
            color: var(--yb-accent);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--yb-accent);
            color: var(--yb-primary);
            font-weight: 900;
            font-size: 1.1rem;
            letter-spacing: 0;
            flex-shrink: 0;
            transition: transform var(--yb-transition);
        }

        .yb-navbar__logo:hover .logo-icon {
            transform: rotate(8deg);
        }

        .yb-navbar__links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .yb-navbar__link {
            display: block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.75);
            border-radius: 8px;
            transition: all var(--yb-transition);
            white-space: nowrap;
        }

        .yb-navbar__link:hover,
        .yb-navbar__link:focus {
            color: var(--yb-accent);
            background: rgba(168, 227, 46, 0.1);
        }

        .yb-navbar__link--active {
            color: var(--yb-accent);
            background: rgba(168, 227, 46, 0.12);
            box-shadow: inset 0 -2px 0 0 var(--yb-accent);
        }

        .yb-navbar__cta {
            flex-shrink: 0;
        }

        .yb-navbar-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 8px;
            border-radius: 8px;
            transition: all var(--yb-transition);
        }

        .yb-navbar-toggle:hover,
        .yb-navbar-toggle:focus {
            color: var(--yb-accent);
            background: rgba(255, 255, 255, 0.1);
        }

        .yb-mobile-menu {
            display: none;
            background: var(--yb-primary);
            padding: 16px 24px;
            flex-direction: column;
            gap: 4px;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            z-index: 999;
            box-shadow: 0 20px 40px rgba(15, 23, 18, 0.35);
            max-height: calc(100vh - 64px);
            overflow-y: auto;
        }

        .yb-mobile-menu--open {
            display: flex;
        }

        .yb-mobile-menu__link {
            display: block;
            padding: 14px 16px;
            font-size: 1rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.85);
            border-radius: 8px;
            transition: all var(--yb-transition);
        }

        .yb-mobile-menu__link:hover,
        .yb-mobile-menu__link:focus {
            color: var(--yb-accent);
            background: rgba(168, 227, 46, 0.1);
        }

        .yb-mobile-menu__link--active {
            color: var(--yb-accent);
            background: rgba(168, 227, 46, 0.12);
        }

        .yb-hero-banner {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: var(--yb-section-gap) 0;
        }

        .yb-hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 18, 0.92) 0%, rgba(15, 23, 18, 0.75) 50%, rgba(15, 23, 18, 0.6) 100%);
            pointer-events: none;
        }

        .yb-hero-banner .yb-container {
            position: relative;
            z-index: 1;
            width: 100%;
        }

        .yb-hero-banner__content {
            max-width: 720px;
            color: #fff;
        }

        .yb-hero-banner__title {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.01em;
            color: #fff;
            margin-bottom: 0.75rem;
        }

        .yb-hero-banner__desc {
            font-size: 1.05rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 1.5rem;
            max-width: 560px;
        }

        .yb-hero-banner__actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .yb-hero-banner__stat {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(168, 227, 46, 0.15);
            border: 1px solid rgba(168, 227, 46, 0.35);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--yb-accent);
        }

        .yb-hero-banner__stat .fa-solid {
            font-size: 0.9rem;
        }

        .yb-filter-bar {
            background: var(--yb-white);
            border-radius: var(--yb-radius-lg);
            box-shadow: var(--yb-shadow);
            padding: 20px 24px;
            margin-top: -40px;
            position: relative;
            z-index: 10;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            border: 1px solid var(--yb-border);
        }

        .yb-filter-bar__search {
            flex: 1 1 240px;
            min-width: 180px;
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--yb-bg);
            border: 1.5px solid var(--yb-border);
            border-radius: 12px;
            padding: 10px 16px;
            transition: all var(--yb-transition);
        }

        .yb-filter-bar__search:focus-within {
            border-color: var(--yb-primary);
            box-shadow: 0 0 0 3px var(--yb-accent-glow);
        }

        .yb-filter-bar__search .fa-solid {
            color: var(--yb-text-muted);
            font-size: 0.95rem;
        }

        .yb-filter-bar__search input {
            border: none;
            background: none;
            outline: none;
            font-size: 0.95rem;
            color: var(--yb-text);
            width: 100%;
            font-family: inherit;
        }

        .yb-filter-bar__search input::placeholder {
            color: var(--yb-text-muted);
        }

        .yb-filter-bar__tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .yb-filter-tag {
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--yb-text-secondary);
            background: var(--yb-bg);
            border: 1.5px solid var(--yb-border);
            transition: all var(--yb-transition);
            white-space: nowrap;
        }

        .yb-filter-tag:hover,
        .yb-filter-tag:focus {
            border-color: var(--yb-accent);
            color: var(--yb-primary);
            background: rgba(168, 227, 46, 0.12);
        }

        .yb-filter-tag--active {
            background: var(--yb-primary);
            color: #fff;
            border-color: var(--yb-primary);
        }

        .yb-filter-bar__sort {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .yb-filter-bar__sort select {
            padding: 8px 14px;
            border-radius: 10px;
            border: 1.5px solid var(--yb-border);
            background: var(--yb-white);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--yb-text);
            font-family: inherit;
            transition: all var(--yb-transition);
            cursor: pointer;
        }

        .yb-filter-bar__sort select:focus {
            border-color: var(--yb-primary);
            outline: none;
            box-shadow: 0 0 0 3px var(--yb-accent-glow);
        }

        .yb-content-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .yb-content-card {
            display: flex;
            flex-direction: row;
            gap: 20px;
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: var(--yb-radius-lg);
            padding: 20px;
            box-shadow: var(--yb-shadow-sm);
            transition: all var(--yb-transition);
            overflow: hidden;
            position: relative;
        }

        .yb-content-card:hover {
            box-shadow: var(--yb-shadow-hover);
            border-color: rgba(168, 227, 46, 0.5);
            transform: translateY(-3px);
        }

        .yb-content-card__cover {
            flex-shrink: 0;
            width: 180px;
            height: 135px;
            border-radius: var(--yb-radius);
            overflow: hidden;
            background: var(--yb-bg);
        }

        .yb-content-card__cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--yb-transition-slow);
        }

        .yb-content-card:hover .yb-content-card__cover img {
            transform: scale(1.05);
        }

        .yb-content-card__body {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
            min-width: 0;
        }

        .yb-content-card__meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .yb-content-card__date {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--yb-text-muted);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .yb-content-card__date .fa-solid {
            font-size: 0.7rem;
        }

        .yb-content-card__category {
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--yb-accent);
            background: rgba(168, 227, 46, 0.12);
            padding: 2px 10px;
            border-radius: 999px;
            letter-spacing: 0.03em;
        }

        .yb-content-card__title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--yb-primary);
            line-height: 1.5;
            margin: 0;
            letter-spacing: -0.01em;
        }

        .yb-content-card__title a {
            color: inherit;
            transition: color var(--yb-transition);
        }

        .yb-content-card__title a:hover,
        .yb-content-card__title a:focus {
            color: var(--yb-accent);
        }

        .yb-content-card__excerpt {
            font-size: 0.88rem;
            color: var(--yb-text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin: 0;
        }

        .yb-content-card__footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-top: auto;
            padding-top: 8px;
        }

        .yb-link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--yb-primary);
            transition: all var(--yb-transition);
            padding: 4px 0;
            border-bottom: 2px solid transparent;
        }

        .yb-link-more .fa-solid {
            font-size: 0.75rem;
            transition: transform var(--yb-transition);
        }

        .yb-link-more:hover,
        .yb-link-more:focus {
            color: var(--yb-accent);
            border-bottom-color: var(--yb-accent);
        }

        .yb-link-more:hover .fa-solid {
            transform: translateX(4px);
        }

        .yb-pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .yb-pagination__btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--yb-text-secondary);
            background: var(--yb-white);
            border: 1.5px solid var(--yb-border);
            transition: all var(--yb-transition);
            cursor: pointer;
        }

        .yb-pagination__btn:hover,
        .yb-pagination__btn:focus {
            border-color: var(--yb-accent);
            color: var(--yb-primary);
            background: rgba(168, 227, 46, 0.08);
        }

        .yb-pagination__btn--active {
            background: var(--yb-primary);
            color: #fff;
            border-color: var(--yb-primary);
            cursor: default;
        }

        .yb-pagination__btn--disabled {
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
        }

        .yb-faq {
            max-width: 800px;
            margin: 0 auto;
        }

        .yb-faq__item {
            background: var(--yb-white);
            border: 1px solid var(--yb-border);
            border-radius: var(--yb-radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--yb-transition);
        }

        .yb-faq__item:hover {
            border-color: rgba(168, 227, 46, 0.5);
        }

        .yb-faq__item--open {
            border-color: rgba(168, 227, 46, 0.6);
            box-shadow: var(--yb-shadow);
        }

        .yb-faq__question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 18px 24px;
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--yb-primary);
            text-align: left;
            background: none;
            transition: all var(--yb-transition);
            cursor: pointer;
        }

        .yb-faq__question:hover {
            color: var(--yb-accent);
        }

        .yb-faq__icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--yb-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--yb-text-secondary);
            transition: all var(--yb-transition);
        }

        .yb-faq__item--open .yb-faq__icon {
            background: var(--yb-accent);
            color: var(--yb-primary);
            transform: rotate(45deg);
        }

        .yb-faq__answer {
            padding: 0 24px 18px;
            font-size: 0.88rem;
            color: var(--yb-text-secondary);
            line-height: 1.8;
            display: none;
        }

        .yb-faq__item--open .yb-faq__answer {
            display: block;
        }

        .yb-cta-banner {
            background: linear-gradient(135deg, var(--yb-primary) 0%, var(--yb-primary-dark) 100%);
            border-radius: var(--yb-radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .yb-cta-banner::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(168, 227, 46, 0.12);
            pointer-events: none;
        }

        .yb-cta-banner__text {
            flex: 1 1 300px;
            color: #fff;
            position: relative;
            z-index: 1;
        }

        .yb-cta-banner__title {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .yb-cta-banner__desc {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
        }

        .yb-cta-banner__actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
            flex-shrink: 0;
        }

        .yb-footer {
            background: var(--yb-primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 20px;
            border-top: 3px solid rgba(168, 227, 46, 0.25);
        }

        .yb-footer__top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .yb-footer__brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .yb-footer__brand .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 0.95rem;
        }

        .yb-footer__desc {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 0;
        }

        .yb-footer__heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .yb-footer__links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .yb-footer__link {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--yb-transition);
        }

        .yb-footer__link:hover,
        .yb-footer__link:focus {
            color: var(--yb-accent);
        }

        .yb-footer__bottom {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
            padding-top: 20px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .yb-footer__bottom a {
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--yb-transition);
        }

        .yb-footer__bottom a:hover,
        .yb-footer__bottom a:focus {
            color: var(--yb-accent);
        }

        @media (max-width: 992px) {
            .yb-navbar__links {
                display: none;
            }
            .yb-navbar__cta {
                display: none;
            }
            .yb-navbar-toggle {
                display: inline-flex;
            }
            .yb-footer__top {
                grid-template-columns: 1fr 1fr;
            }
            .yb-hero-banner__title {
                font-size: 2rem;
            }
            .yb-content-card {
                flex-direction: column;
            }
            .yb-content-card__cover {
                width: 100%;
                height: 200px;
            }
        }

        @media (max-width: 576px) {
            .yb-container {
                padding: 0 16px;
            }
            .yb-section {
                padding: var(--yb-section-gap-mobile) 0;
            }
            .yb-hero-banner {
                min-height: 280px;
                padding: 40px 0;
            }
            .yb-hero-banner__title {
                font-size: 1.6rem;
            }
            .yb-hero-banner__desc {
                font-size: 0.9rem;
            }
            .yb-filter-bar {
                padding: 16px;
                gap: 12px;
                margin-top: -24px;
            }
            .yb-filter-bar__sort {
                width: 100%;
            }
            .yb-filter-bar__sort select {
                width: 100%;
            }
            .yb-content-card {
                padding: 14px;
            }
            .yb-content-card__cover {
                height: 160px;
            }
            .yb-content-card__title {
                font-size: 1rem;
            }
            .yb-cta-banner {
                padding: 28px 20px;
            }
            .yb-footer__top {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .yb-navbar {
                padding: 10px 16px;
            }
            .yb-navbar__logo {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
                border-radius: 8px;
            }
        }

        @media (max-width: 768px) {
            .yb-section-title {
                font-size: 1.5rem;
            }
            .yb-hero-banner__actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .yb-btn {
                padding: 10px 24px;
                font-size: 0.85rem;
            }
            .yb-content-card__footer {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }