/* roulang page: index */
:root {
            --color-primary: #0F1110;
            --color-accent: #FF442B;
            --color-accent-alt: #C6F432;
            --color-bg: #F6F5F1;
            --color-card: #FFFFFF;
            --color-text-secondary: #1C1D1B;
            --color-text-muted: #6B6F6A;
            --color-border: #E5E3DC;
            --color-dark-card: #1C1D1B;
            --radius-large: 28px;
            --radius-card: 20px;
            --radius-tag: 8px;
            --radius-pill: 999px;
            --shadow-default: 1px solid #E5E3DC, 0 12px 30px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-dark-card: 1px solid rgba(255, 255, 255, 0.08);
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 100px 0;
        }
        .section-dark {
            background-color: var(--color-primary);
            color: var(--color-bg);
        }
        .section-light {
            background-color: var(--color-bg);
        }
        .section-white {
            background-color: var(--color-card);
        }
        .reveal {
            opacity: 0;
            transform: translateY(14px);
            transition: opacity 320ms ease-out, transform 320ms ease-out;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .reveal-delay-1 {
            transition-delay: 80ms;
        }
        .reveal-delay-2 {
            transition-delay: 160ms;
        }
        .reveal-delay-3 {
            transition-delay: 240ms;
        }
        .reveal-delay-4 {
            transition-delay: 320ms;
        }
        @media (prefers-reduced-motion: reduce) {
            .reveal {
                opacity: 1;
                transform: none;
                transition: none;
            }
            html {
                scroll-behavior: auto;
            }
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 16px;
            padding: 14px 28px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: #ffffff;
        }
        .btn-primary:hover {
            background-color: #d63a22;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 68, 43, 0.35);
        }
        .btn-primary .arrow {
            transition: transform var(--transition-base);
        }
        .btn-primary:hover .arrow {
            transform: translateX(4px);
        }
        .btn-dark {
            background-color: var(--color-primary);
            color: #ffffff;
        }
        .btn-dark:hover {
            background-color: #2a2d2b;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 17, 16, 0.3);
        }
        .btn-light {
            background-color: #ffffff;
            color: var(--color-primary);
        }
        .btn-light:hover {
            background-color: #f0ede6;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
        }
        .btn-outline-light {
            background-color: transparent;
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }
        .btn-outline-dark {
            background-color: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }
        .btn-outline-dark:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }
        .tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.03em;
            line-height: 1.5;
        }
        .tag-accent {
            background-color: var(--color-accent);
            color: #ffffff;
        }
        .tag-green {
            background-color: var(--color-accent-alt);
            color: var(--color-primary);
        }
        .tag-outline {
            border: 1px solid var(--color-border);
            background-color: transparent;
            color: var(--color-text-secondary);
        }
        .tag-dark {
            background-color: rgba(255, 255, 255, 0.12);
            color: var(--color-bg);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .section-label::before {
            content: '';
            width: 28px;
            height: 2px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }
        .stat-number {
            font-size: 56px;
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.1;
            color: var(--color-accent-alt);
        }
        .stat-number-dark {
            font-size: 56px;
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.1;
            color: var(--color-accent);
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-base);
            position: relative;
            letter-spacing: 0.02em;
        }
        .nav-link:hover {
            color: var(--color-accent);
            background-color: rgba(255, 68, 43, 0.06);
        }
        .nav-link.active {
            color: var(--color-accent);
            font-weight: 700;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 3px;
        }
        .header-nav {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            transition: all var(--transition-base);
            background-color: #ffffff;
            border-bottom: 1px solid transparent;
        }
        .header-nav.scrolled {
            border-bottom-color: var(--color-border);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
        }
        .announcement-bar {
            height: 40px;
            background-color: var(--color-primary);
            color: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            letter-spacing: 0.04em;
            padding: 0 16px;
            text-align: center;
        }
        .announcement-bar strong {
            color: var(--color-accent-alt);
            font-weight: 600;
            margin: 0 6px;
        }
        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            right: -100%;
            width: 320px;
            height: 100%;
            background-color: #ffffff;
            z-index: 100;
            transition: right 320ms cubic-bezier(0.4, 0, 0.2, 1);
            padding: 24px 28px;
            box-shadow: -8px 0 32px rgba(0, 0, 0, 0.12);
            overflow-y: auto;
        }
        .mobile-menu-overlay.open {
            right: 0;
        }
        .mobile-menu-backdrop {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.4);
            z-index: 99;
            opacity: 0;
            pointer-events: none;
            transition: opacity 320ms ease;
        }
        .mobile-menu-backdrop.open {
            opacity: 1;
            pointer-events: auto;
        }
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: 16px;
            background-color: #ffffff;
            overflow: hidden;
            transition: all var(--transition-base);
            margin-bottom: 14px;
        }
        .faq-item:hover {
            border-color: var(--color-accent);
            box-shadow: 0 4px 20px rgba(255, 68, 43, 0.08);
        }
        .faq-toggle {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            background: none;
            border: none;
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            text-align: left;
            letter-spacing: 0.01em;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            transition: all var(--transition-base);
            color: var(--color-text-secondary);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background-color: var(--color-accent);
            color: #ffffff;
        }
        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 380ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        .faq-item.open .faq-content {
            max-height: 500px;
        }
        .faq-content-inner {
            padding: 0 24px 22px 24px;
            font-size: 16px;
            color: var(--color-text-muted);
            line-height: 1.9;
        }
        .news-card {
            background: #ffffff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
        }
        .news-card:hover {
            transform: translateY(-4px);
            border-color: var(--color-border);
            box-shadow: var(--shadow-hover);
        }
        .news-card-image {
            overflow: hidden;
            aspect-ratio: 16/9;
            position: relative;
        }
        .news-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 500ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        .news-card:hover .news-card-image img {
            transform: scale(1.03);
        }
        .news-card-body {
            padding: 20px 22px 22px;
        }
        .news-date {
            font-size: 13px;
            color: var(--color-text-muted);
            letter-spacing: 0.03em;
            display: block;
            margin-bottom: 8px;
        }
        .news-title {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
            transition: color var(--transition-base);
        }
        .news-card:hover .news-title {
            color: var(--color-accent);
        }
        .news-excerpt {
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .read-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent);
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }
        .read-more-link .arrow {
            transition: transform var(--transition-base);
        }
        .read-more-link:hover .arrow {
            transform: translateX(4px);
        }
        .category-card {
            background: #ffffff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            transition: all var(--transition-base);
            min-height: 180px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
        }
        .category-card:hover {
            transform: translateY(-4px);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
        }
        .category-card-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.01em;
        }
        .category-card-desc {
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }
        .form-input {
            width: 100%;
            padding: 14px 20px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 12px;
            background: transparent;
            color: #ffffff;
            font-size: 15px;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
        }
        .form-input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .form-input:focus {
            border-color: var(--color-accent);
            outline: none;
            box-shadow: 0 0 0 2px rgba(255, 68, 43, 0.25);
        }
        .testimonial-item {
            position: relative;
            background-color: var(--color-dark-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 30px 28px;
            transition: all var(--transition-base);
        }
        .testimonial-item:hover {
            border-color: rgba(255, 68, 43, 0.4);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }
        .testimonial-quote-mark {
            font-size: 48px;
            line-height: 1;
            color: var(--color-accent);
            font-weight: 800;
            letter-spacing: -0.05em;
            display: block;
            margin-bottom: 8px;
        }
        .testimonial-text {
            font-size: 16px;
            line-height: 1.9;
            color: #d0d3ce;
            margin-bottom: 18px;
        }
        .testimonial-author {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-bg);
            letter-spacing: 0.02em;
        }
        .stats-grid-dark {
            background-color: var(--color-primary);
            color: #ffffff;
            border-radius: var(--radius-large);
            padding: 48px 40px;
        }
        .footer {
            background-color: var(--color-primary);
            color: #d0d3ce;
            padding: 56px 0 32px;
        }
        .footer-link {
            color: #d0d3ce;
            font-size: 14px;
            transition: color var(--transition-base);
        }
        .footer-link:hover {
            color: var(--color-accent-alt);
        }
        .footer-heading {
            color: #ffffff;
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .backpic-hero {
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }
        .backpic-hero-overlay {
            background: linear-gradient(135deg, rgba(15,17,16,0.85) 0%, rgba(15,17,16,0.4) 60%, rgba(15,17,16,0.2) 100%);
        }
        .icon-check {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background-color: var(--color-accent-alt);
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .timeline-item {
            position: relative;
            padding-left: 28px;
            padding-bottom: 24px;
            border-left: 2px solid var(--color-border);
            margin-left: 8px;
        }
        .timeline-item:last-child {
            border-left-color: transparent;
        }
        .timeline-dot {
            position: absolute;
            left: -7px;
            top: 5px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--color-accent);
            border: 2px solid var(--color-bg);
        }
        .pagination-item {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--color-border);
            background-color: #ffffff;
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .pagination-item:hover,
        .pagination-item.active {
            background-color: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }
        @media (max-width: 1024px) {
            .section {
                padding: 72px 0;
            }
            .nav-link {
                font-size: 14px;
                padding: 6px 10px;
            }
            .stat-number,
            .stat-number-dark {
                font-size: 42px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .container {
                padding: 0 18px;
            }
            .announcement-bar {
                font-size: 12px;
                height: 36px;
            }
            .stat-number,
            .stat-number-dark {
                font-size: 34px;
            }
            .hero-title {
                font-size: 32px;
                line-height: 1.25;
            }
            .section-label {
                font-size: 13px;
                margin-bottom: 10px;
            }
            .btn {
                font-size: 14px;
                padding: 12px 20px;
            }
            .news-title {
                font-size: 17px;
            }
            .faq-toggle {
                font-size: 15px;
                padding: 16px 18px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .section {
                padding: 48px 0;
            }
            .stat-number,
            .stat-number-dark {
                font-size: 28px;
            }
            .hero-title {
                font-size: 26px;
            }
            .btn {
                font-size: 13px;
                padding: 10px 16px;
                gap: 6px;
            }
            .news-card-body {
                padding: 16px 16px 18px;
            }
            .category-card {
                padding: 20px 18px;
                min-height: 150px;
            }
            .mobile-menu-overlay {
                width: 100%;
                max-width: 340px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #0F1110;
            --color-accent: #FF442B;
            --color-accent-alt: #C6F432;
            --color-bg: #F6F5F1;
            --color-card: #FFFFFF;
            --color-text-secondary: #1C1D1B;
            --color-text-muted: #6B6F6A;
            --color-border: #E5E3DC;
            --color-dark-card: #1C1D1B;
            --radius-large: 28px;
            --radius-card: 20px;
            --radius-tag: 8px;
            --radius-pill: 999px;
            --shadow-default: 1px solid #E5E3DC, 0 12px 30px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-dark-card: 1px solid rgba(255, 255, 255, 0.08);
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }

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

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 90px 0;
        }

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

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 16px;
            padding: 14px 28px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background-color: var(--color-accent);
            color: #ffffff;
        }

        .btn-primary:hover {
            background-color: #d63a22;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 68, 43, 0.35);
        }

        .btn-primary .arrow {
            transition: transform var(--transition-base);
        }

        .btn-primary:hover .arrow {
            transform: translateX(4px);
        }

        .btn-dark {
            background-color: var(--color-primary);
            color: #ffffff;
        }

        .btn-dark:hover {
            background-color: #2a2d2b;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 17, 16, 0.3);
        }

        .btn-light {
            background-color: #ffffff;
            color: var(--color-primary);
        }

        .btn-light:hover {
            background-color: #f0ede6;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
        }

        .btn-outline-light {
            background-color: transparent;
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }

        .btn-outline-dark {
            background-color: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }

        .btn-outline-dark:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }

        .tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.03em;
            line-height: 1.5;
        }

        .tag-accent {
            background-color: var(--color-accent);
            color: #ffffff;
        }

        .tag-green {
            background-color: var(--color-accent-alt);
            color: var(--color-primary);
        }

        .tag-outline {
            border: 1px solid var(--color-border);
            background-color: transparent;
            color: var(--color-text-secondary);
        }

        .tag-dark {
            background-color: rgba(255, 255, 255, 0.12);
            color: var(--color-bg);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .section-label::before {
            content: '';
            width: 28px;
            height: 2px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-base);
            position: relative;
        }

        .nav-link:hover {
            color: var(--color-accent);
            background-color: rgba(255, 68, 43, 0.06);
        }

        .nav-link.active {
            color: var(--color-accent);
            background-color: rgba(255, 68, 43, 0.08);
            font-weight: 700;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 4px;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }

        .announcement-bar {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            padding: 9px 20px;
            text-align: center;
            letter-spacing: 0.02em;
            position: relative;
            z-index: 30;
        }

        .announcement-bar strong {
            color: var(--color-accent-alt);
            font-weight: 700;
        }

        .header-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            padding: 0 24px;
            background-color: #ffffff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 50;
            transition: box-shadow var(--transition-base);
        }

        .header-nav.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 320px;
            max-width: 90vw;
            height: 100vh;
            background-color: #ffffff;
            z-index: 100;
            padding: 24px;
            box-shadow: -8px 0 30px rgba(0, 0, 0, 0.15);
            transform: translateX(100%);
            transition: transform var(--transition-base);
            overflow-y: auto;
        }

        .mobile-menu.open {
            transform: translateX(0);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background-color: rgba(15, 17, 16, 0.55);
            z-index: 90;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .mobile-menu-overlay.open {
            opacity: 1;
        }

        .footer {
            background-color: var(--color-primary);
            color: var(--color-bg);
            padding: 64px 0 32px;
        }

        .footer-heading {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }

        .footer-link {
            color: #a8aaa5;
            font-size: 14px;
            transition: color var(--transition-base);
        }

        .footer-link:hover {
            color: var(--color-accent);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-base);
        }

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

        .breadcrumb .separator {
            color: #c0bdb5;
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        .filter-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            background-color: #ffffff;
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .filter-pill:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .filter-pill.active {
            background-color: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }

        .article-card-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .article-card {
            background-color: #ffffff;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 68, 43, 0.2);
        }

        .article-card .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

        .article-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 400ms ease;
        }

        .article-card:hover .card-image img {
            transform: scale(1.03);
        }

        .article-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .article-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--color-text-muted);
        }

        .article-card .card-title {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--color-primary);
            transition: color var(--transition-base);
        }

        .article-card:hover .card-title {
            color: var(--color-accent);
        }

        .article-card .card-excerpt {
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.7;
            flex: 1;
        }

        .article-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            transition: color var(--transition-base);
        }

        .article-card .read-more .arrow {
            transition: transform var(--transition-base);
        }

        .article-card:hover .read-more {
            color: var(--color-accent);
        }

        .article-card:hover .read-more .arrow {
            transform: translateX(4px);
        }

        .featured-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background-color: #ffffff;
            border-radius: var(--radius-large);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
            transition: all var(--transition-base);
            margin-bottom: 40px;
        }

        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .featured-card .featured-image {
            position: relative;
            overflow: hidden;
            min-height: 320px;
        }

        .featured-card .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 400ms ease;
        }

        .featured-card:hover .featured-image img {
            transform: scale(1.02);
        }

        .featured-card .featured-body {
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 16px;
        }

        .featured-card .featured-title {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.4;
            color: var(--color-primary);
        }

        .featured-card .featured-excerpt {
            font-size: 16px;
            color: var(--color-text-muted);
            line-height: 1.8;
        }

        .sidebar-card {
            background-color: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 24px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
            margin-bottom: 24px;
        }

        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            transition: color var(--transition-base);
        }

        .sidebar-list a:hover {
            color: var(--color-accent);
        }

        .sidebar-list .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent);
            margin-top: 9px;
            flex-shrink: 0;
        }

        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 48px;
            flex-wrap: wrap;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            background-color: #ffffff;
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
        }

        .pagination a:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .pagination .current {
            background-color: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
            font-weight: 700;
        }

        .hero-category {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 100px 0 80px;
            color: #ffffff;
        }

        .hero-category .overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(15, 17, 16, 0.92) 0%, rgba(15, 17, 16, 0.65) 55%, rgba(15, 17, 16, 0.4) 100%);
        }

        .hero-category .hero-content {
            position: relative;
            z-index: 5;
            max-width: 720px;
        }

        .hero-category h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }

        .hero-category .hero-desc {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
        }

        @media (max-width: 1024px) {
            .hero-category h1 {
                font-size: 40px;
            }
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-card .featured-image {
                min-height: 240px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .hero-category {
                padding: 70px 0 50px;
            }
            .hero-category h1 {
                font-size: 32px;
            }
            .article-card-grid {
                grid-template-columns: 1fr;
            }
            .featured-card .featured-body {
                padding: 24px;
            }
            .featured-card .featured-title {
                font-size: 22px;
            }
            .header-nav {
                padding: 0 16px;
            }
        }

        @media (min-width: 769px) {
            .mobile-menu,
            .mobile-menu-overlay {
                display: none !important;
            }
        }

        @media (max-width: 768px) {
            .hidden-mobile {
                display: none !important;
            }
            .mobile-menu {
                display: block;
            }
            .mobile-menu-overlay {
                display: block;
                pointer-events: none;
            }
            .mobile-menu-overlay.open {
                pointer-events: all;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0F1110;
            --color-accent: #FF442B;
            --color-accent-alt: #C6F432;
            --color-bg: #F6F5F1;
            --color-card: #FFFFFF;
            --color-text-secondary: #1C1D1B;
            --color-text-muted: #6B6F6A;
            --color-border: #E5E3DC;
            --color-dark-card: #1C1D1B;
            --radius-large: 28px;
            --radius-card: 20px;
            --radius-tag: 8px;
            --radius-pill: 999px;
            --shadow-default: 1px solid #E5E3DC, 0 12px 30px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-dark-card: 1px solid rgba(255, 255, 255, 0.08);
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }

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

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 96px 0;
        }

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

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 16px;
            padding: 14px 28px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background-color: var(--color-accent);
            color: #ffffff;
        }

        .btn-primary:hover {
            background-color: #d63a22;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 68, 43, 0.35);
        }

        .btn-primary .arrow {
            transition: transform var(--transition-base);
        }

        .btn-primary:hover .arrow {
            transform: translateX(4px);
        }

        .btn-dark {
            background-color: var(--color-primary);
            color: #ffffff;
        }

        .btn-dark:hover {
            background-color: #2a2d2b;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 17, 16, 0.3);
        }

        .btn-light {
            background-color: #ffffff;
            color: var(--color-primary);
        }

        .btn-light:hover {
            background-color: #f0ede6;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
        }

        .btn-outline-light {
            background-color: transparent;
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }

        .btn-outline-dark {
            background-color: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }

        .btn-outline-dark:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }

        .tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.03em;
            line-height: 1.5;
        }

        .tag-accent {
            background-color: var(--color-accent);
            color: #ffffff;
        }

        .tag-green {
            background-color: var(--color-accent-alt);
            color: var(--color-primary);
        }

        .tag-outline {
            border: 1px solid var(--color-border);
            background-color: transparent;
            color: var(--color-text-secondary);
        }

        .tag-dark {
            background-color: rgba(255, 255, 255, 0.12);
            color: var(--color-bg);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .section-label::before {
            content: '';
            width: 28px;
            height: 2px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-base);
            position: relative;
        }

        .nav-link:hover {
            color: var(--color-accent);
        }

        .nav-link.active {
            color: var(--color-accent);
            font-weight: 700;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }

        .announcement-bar {
            background-color: var(--color-primary);
            color: var(--color-bg);
            text-align: center;
            font-size: 13px;
            padding: 10px 24px;
            letter-spacing: 0.02em;
        }

        .announcement-bar strong {
            color: var(--color-accent-alt);
            font-weight: 700;
        }

        .header-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            padding: 0 24px;
            background-color: #ffffff;
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
            position: sticky;
            top: 0;
            z-index: 60;
            gap: 16px;
        }

        .header-nav.scrolled {
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
            border-bottom-color: transparent;
        }

        .card {
            background-color: var(--color-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
            transition: all var(--transition-base);
            overflow: hidden;
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
        }

        .card-image {
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .card-image img {
            transition: transform var(--transition-base);
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 16/9;
        }

        .card:hover .card-image img {
            transform: scale(1.03);
        }

        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--color-accent);
            transition: all var(--transition-base);
        }

        .read-more .arrow {
            transition: transform var(--transition-base);
        }

        .read-more:hover {
            color: #d63a22;
        }

        .read-more:hover .arrow {
            transform: translateX(4px);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-base);
        }

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

        .breadcrumb .separator {
            color: var(--color-border);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        .filter-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            background-color: #ffffff;
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .filter-pill:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .filter-pill.active {
            background-color: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            background-color: #ffffff;
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            background-color: #ffffff;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: background-color var(--transition-base);
        }

        .faq-question:hover {
            background-color: var(--color-bg);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 22px;
            font-weight: 300;
            color: var(--color-accent);
            transition: transform var(--transition-base);
            line-height: 1;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 350ms cubic-bezier(0.4, 0, 0.2, 1), padding 350ms cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 24px;
            background-color: var(--color-bg);
            border-radius: 0 0 12px 12px;
            color: var(--color-text-secondary);
            font-size: 15px;
            line-height: 1.9;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 20px 24px;
        }

        .hero-category {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 360px;
            display: flex;
            align-items: center;
            padding: 80px 0;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 17, 16, 0.85) 0%, rgba(15, 17, 16, 0.55) 60%, rgba(15, 17, 16, 0.2) 100%);
            z-index: 1;
        }

        .hero-category .container {
            position: relative;
            z-index: 2;
        }

        .featured-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background-color: #ffffff;
            border-radius: var(--radius-large);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.08);
            transition: all var(--transition-base);
        }

        .featured-card:hover {
            box-shadow: 0 20px 56px rgba(0, 0, 0, 0.14);
            transform: translateY(-2px);
        }

        .featured-card .featured-image {
            overflow: hidden;
            min-height: 320px;
        }

        .featured-card .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
            aspect-ratio: 16/10;
        }

        .featured-card:hover .featured-image img {
            transform: scale(1.03);
        }

        .sidebar-card {
            background-color: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
            padding: 24px;
        }

        .sidebar-link {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }

        .sidebar-link:last-child {
            border-bottom: none;
        }

        .sidebar-link:hover {
            padding-left: 6px;
        }

        .sidebar-link .sidebar-title {
            font-size: 14px;
            font-weight: 600;
            line-height: 1.6;
            color: var(--color-primary);
            transition: color var(--transition-base);
        }

        .sidebar-link:hover .sidebar-title {
            color: var(--color-accent);
        }

        .hot-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background-color: var(--color-bg);
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            margin: 0 6px 8px 0;
        }

        .hot-tag:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: #ffffff;
        }

        .pagination-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-secondary);
            background-color: #ffffff;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }

        .pagination-btn:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .pagination-btn.active {
            background-color: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }

        .footer {
            background-color: var(--color-primary);
            color: var(--color-bg);
            padding: 60px 0 24px;
        }

        .footer-heading {
            font-size: 16px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-link {
            font-size: 14px;
            color: #9ca3af;
            transition: color var(--transition-base);
        }

        .footer-link:hover {
            color: var(--color-accent-alt);
        }

        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(15, 17, 16, 0.6);
            z-index: 70;
            opacity: 0;
            visibility: hidden;
            transition: all var(--transition-base);
        }

        .mobile-menu-overlay.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100%;
            background-color: #ffffff;
            z-index: 80;
            transition: right var(--transition-base);
            display: flex;
            flex-direction: column;
            box-shadow: -12px 0 40px rgba(0, 0, 0, 0.15);
        }

        .mobile-drawer.open {
            right: 0;
        }

        .mobile-drawer .mobile-nav-link {
            font-size: 18px;
            font-weight: 600;
            padding: 16px 24px;
            color: var(--color-primary);
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }

        .mobile-drawer .mobile-nav-link:hover {
            background-color: var(--color-bg);
            color: var(--color-accent);
        }

        .mobile-drawer .mobile-nav-link.active {
            color: var(--color-accent);
        }

        @media (max-width: 1024px) {
            .section {
                padding: 72px 0;
            }
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-card .featured-image {
                min-height: 220px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .container {
                padding: 0 16px;
            }
            .hero-category {
                min-height: 260px;
                padding: 56px 0;
            }
            .announcement-bar {
                font-size: 12px;
                padding: 8px 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-category {
                min-height: 220px;
                padding: 44px 0;
            }
            .btn {
                font-size: 14px;
                padding: 12px 20px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #0F1110;
            --color-accent: #FF442B;
            --color-accent-alt: #C6F432;
            --color-bg: #F6F5F1;
            --color-card: #FFFFFF;
            --color-text-secondary: #1C1D1B;
            --color-text-muted: #6B6F6A;
            --color-border: #E5E3DC;
            --color-dark-card: #1C1D1B;
            --radius-large: 28px;
            --radius-card: 20px;
            --radius-tag: 8px;
            --radius-pill: 999px;
            --shadow-default: 1px solid #E5E3DC, 0 12px 30px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-dark-card: 1px solid rgba(255, 255, 255, 0.08);
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 100px 0;
        }
        .section-dark {
            background-color: var(--color-primary);
            color: var(--color-bg);
        }
        .section-light {
            background-color: var(--color-bg);
        }
        .section-white {
            background-color: var(--color-card);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 16px;
            padding: 14px 28px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: #ffffff;
        }
        .btn-primary:hover {
            background-color: #d63a22;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 68, 43, 0.35);
        }
        .btn-primary .arrow {
            transition: transform var(--transition-base);
        }
        .btn-primary:hover .arrow {
            transform: translateX(4px);
        }
        .btn-dark {
            background-color: var(--color-primary);
            color: #ffffff;
        }
        .btn-dark:hover {
            background-color: #2a2d2b;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 17, 16, 0.3);
        }
        .btn-light {
            background-color: #ffffff;
            color: var(--color-primary);
        }
        .btn-light:hover {
            background-color: #f0ede6;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
        }
        .btn-outline-light {
            background-color: transparent;
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }
        .btn-outline-dark {
            background-color: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }
        .btn-outline-dark:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }
        .tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.03em;
            line-height: 1.5;
        }
        .tag-accent {
            background-color: var(--color-accent);
            color: #ffffff;
        }
        .tag-green {
            background-color: var(--color-accent-alt);
            color: var(--color-primary);
        }
        .tag-outline {
            border: 1px solid var(--color-border);
            background-color: transparent;
            color: var(--color-text-secondary);
        }
        .tag-dark {
            background-color: rgba(255, 255, 255, 0.12);
            color: var(--color-bg);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .section-label::before {
            content: '';
            width: 28px;
            height: 2px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }
        /* Header */
        #site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: #ffffff;
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
            border-bottom: 1px solid transparent;
        }
        #site-header.scrolled {
            border-bottom-color: var(--color-border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .announcement-bar {
            background-color: var(--color-primary);
            color: #ffffff;
            font-size: 13px;
            text-align: center;
            padding: 8px 16px;
            letter-spacing: 0.02em;
        }
        .announcement-bar strong {
            color: var(--color-accent-alt);
        }
        .header-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            padding: 0 24px;
            max-width: 1280px;
            margin: 0 auto;
            gap: 16px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-base);
            position: relative;
        }
        .nav-link:hover {
            color: var(--color-accent);
            background-color: rgba(255, 68, 43, 0.06);
        }
        .nav-link.active {
            color: #ffffff;
            background-color: var(--color-primary);
        }
        .mobile-menu {
            position: fixed;
            top: 0;
            right: -100%;
            width: 85%;
            max-width: 380px;
            height: 100vh;
            background-color: #ffffff;
            z-index: 60;
            transition: right 300ms cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: -8px 0 40px rgba(0, 0, 0, 0.12);
            padding: 24px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            right: 0;
        }
        .mobile-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 55;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-base);
        }
        .mobile-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        /* Card styles */
        .card {
            background-color: var(--color-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: #d5d2c8;
        }
        .card-img-wrap {
            overflow: hidden;
            aspect-ratio: 16/9;
            position: relative;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 400ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .card-title {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--color-primary);
            transition: color var(--transition-base);
        }
        .card:hover .card-title {
            color: var(--color-accent);
        }
        .card-excerpt {
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.8;
            flex: 1;
        }
        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent);
        }
        .read-more .arrow {
            transition: transform var(--transition-base);
        }
        .read-more:hover .arrow {
            transform: translateX(4px);
        }
        /* Hero */
        .category-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            color: #ffffff;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(15, 17, 16, 0.88) 0%, rgba(15, 17, 16, 0.55) 60%, rgba(15, 17, 16, 0.3) 100%);
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
        }
        .breadcrumb a:hover {
            color: var(--color-accent-alt);
        }
        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            margin-bottom: 16px;
            background-color: #ffffff;
            transition: all var(--transition-base);
        }
        .faq-item.active {
            border-color: var(--color-accent);
            background-color: #faf9f6;
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            background: none;
            border: none;
            text-align: left;
            gap: 16px;
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-icon {
            font-size: 24px;
            font-weight: 300;
            color: var(--color-accent);
            flex-shrink: 0;
            transition: transform var(--transition-base);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 400ms cubic-bezier(0.4, 0, 0.2, 1), padding 400ms cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 24px;
            color: var(--color-text-muted);
            font-size: 15px;
            line-height: 1.9;
        }
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px 24px;
        }
        /* Footer */
        .footer {
            background-color: var(--color-primary);
            color: #ffffff;
            padding: 60px 0 30px;
        }
        .footer-heading {
            font-size: 16px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-link {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-base);
        }
        .footer-link:hover {
            color: var(--color-accent-alt);
        }
        /* Filter pills */
        .filter-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            padding: 9px 18px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--color-border);
            background-color: #ffffff;
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .filter-pill:hover,
        .filter-pill.active {
            background-color: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }
        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            gap: 10px;
            justify-content: center;
        }
        .page-btn {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-pill);
            border: 1px solid var(--color-border);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
            background-color: #ffffff;
            cursor: pointer;
        }
        .page-btn:hover,
        .page-btn.active {
            background-color: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }
        /* Animation */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(14px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in-up {
            animation: fadeInUp 300ms cubic-bezier(0.4, 0, 0.2, 1) both;
        }
        @media (prefers-reduced-motion: reduce) {
            .fade-in-up {
                animation: none;
            }
            .card-img-wrap img {
                transition: none;
            }
            .btn .arrow,
            .read-more .arrow {
                transition: none;
            }
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .section {
                padding: 72px 0;
            }
            .card-title {
                font-size: 19px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .header-nav {
                padding: 0 16px;
                height: 64px;
            }
            .category-hero {
                padding: 48px 0;
            }
            .card-title {
                font-size: 18px;
            }
            .card-body {
                padding: 18px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer {
                font-size: 14px;
                padding: 0 18px;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px 18px;
            }
        }
        @media (max-width: 520px) {
            .header-nav {
                padding: 0 12px;
            }
            .card-title {
                font-size: 16px;
            }
            .card-excerpt {
                font-size: 14px;
            }
            .btn {
                font-size: 14px;
                padding: 12px 20px;
            }
            .pagination {
                gap: 6px;
            }
            .page-btn {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }
        }
        /* 分类页特有 */
        .hero-h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            color: #ffffff;
        }
        @media (max-width: 768px) {
            .hero-h1 {
                font-size: 32px;
            }
        }
        .stat-block {
            background-color: var(--color-primary);
            border-radius: var(--radius-large);
            padding: 40px;
            color: #ffffff;
        }
        .stat-number {
            font-size: 56px;
            font-weight: 800;
            color: var(--color-accent-alt);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        @media (max-width: 768px) {
            .stat-number {
                font-size: 38px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #0F1110;
            --color-accent: #FF442B;
            --color-accent-alt: #C6F432;
            --color-bg: #F6F5F1;
            --color-card: #FFFFFF;
            --color-text-secondary: #1C1D1B;
            --color-text-muted: #6B6F6A;
            --color-border: #E5E3DC;
            --color-dark-card: #1C1D1B;
            --radius-large: 28px;
            --radius-card: 20px;
            --radius-tag: 8px;
            --radius-pill: 999px;
            --shadow-default: 1px solid #E5E3DC, 0 12px 30px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-dark-card: 1px solid rgba(255, 255, 255, 0.08);
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }

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

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 80px 0;
        }

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

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 16px;
            padding: 14px 28px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background-color: var(--color-accent);
            color: #ffffff;
        }

        .btn-primary:hover {
            background-color: #d63a22;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 68, 43, 0.35);
        }

        .btn-primary .arrow {
            transition: transform var(--transition-base);
        }

        .btn-primary:hover .arrow {
            transform: translateX(4px);
        }

        .btn-dark {
            background-color: var(--color-primary);
            color: #ffffff;
        }

        .btn-dark:hover {
            background-color: #2a2d2b;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 17, 16, 0.3);
        }

        .btn-light {
            background-color: #ffffff;
            color: var(--color-primary);
        }

        .btn-light:hover {
            background-color: #f0ede6;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
        }

        .btn-outline-light {
            background-color: transparent;
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }

        .btn-outline-dark {
            background-color: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }

        .btn-outline-dark:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }

        .tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.03em;
            line-height: 1.5;
        }

        .tag-accent {
            background-color: var(--color-accent);
            color: #ffffff;
        }

        .tag-green {
            background-color: var(--color-accent-alt);
            color: var(--color-primary);
        }

        .tag-outline {
            border: 1px solid var(--color-border);
            background-color: transparent;
            color: var(--color-text-secondary);
        }

        .tag-dark {
            background-color: rgba(255, 255, 255, 0.12);
            color: var(--color-bg);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .section-label::before {
            content: '';
            width: 28px;
            height: 2px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-base);
            position: relative;
        }

        .nav-link:hover {
            color: var(--color-accent);
            background-color: rgba(255, 68, 43, 0.06);
        }

        .nav-link.active {
            color: var(--color-accent);
            font-weight: 700;
            background-color: rgba(255, 68, 43, 0.08);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 3px;
        }

        .announcement-bar {
            background-color: var(--color-primary);
            color: var(--color-bg);
            font-size: 13px;
            padding: 8px 0;
            text-align: center;
            letter-spacing: 0.02em;
        }

        .announcement-bar strong {
            color: var(--color-accent-alt);
            font-weight: 700;
        }

        .header-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            background-color: var(--color-card);
            padding: 0 24px;
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid transparent;
            transition: all var(--transition-base);
        }

        .header-nav.scrolled {
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
        }

        .mobile-menu-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 85%;
            max-width: 360px;
            height: 100vh;
            background-color: var(--color-card);
            z-index: 200;
            padding: 24px;
            transition: right 300ms cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: -8px 0 32px rgba(0, 0, 0, 0.1);
            overflow-y: auto;
        }

        .mobile-menu-drawer.open {
            right: 0;
        }

        .mobile-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.45);
            z-index: 150;
            opacity: 0;
            pointer-events: none;
            transition: opacity 300ms ease;
        }

        .mobile-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        .hero-category {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: flex-end;
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-large);
            overflow: hidden;
            margin-top: 32px;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 17, 16, 0.85) 0%, rgba(15, 17, 16, 0.35) 60%, rgba(15, 17, 16, 0.15) 100%);
            z-index: 1;
        }

        .hero-category .hero-category-content {
            position: relative;
            z-index: 2;
            padding: 48px;
            width: 100%;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-base);
        }

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

        .breadcrumb .separator {
            color: var(--color-border);
        }

        .breadcrumb .current {
            color: var(--color-accent);
            font-weight: 600;
        }

        .filter-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            background-color: var(--color-card);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .filter-pill:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: rgba(255, 68, 43, 0.04);
        }

        .filter-pill.active {
            background-color: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }

        .select-filter {
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            background-color: var(--color-card);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236B6F6A' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            padding-right: 40px;
        }

        .select-filter:hover {
            border-color: var(--color-accent);
        }

        .article-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            transition: all var(--transition-base);
        }

        .article-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(255, 68, 43, 0.2);
        }

        .article-card .article-image {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            transition: transform 400ms ease;
        }

        .article-card:hover .article-image {
            transform: scale(1.03);
        }

        .article-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent);
            transition: all var(--transition-base);
            cursor: pointer;
            background: none;
            border: none;
            padding: 0;
        }

        .article-card .read-more .arrow {
            transition: transform var(--transition-base);
        }

        .article-card .read-more:hover .arrow {
            transform: translateX(4px);
        }

        .article-card.featured {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }

        .article-card.featured .article-image-wrapper {
            overflow: hidden;
        }

        .article-card.featured .article-image {
            width: 100%;
            height: 100%;
            aspect-ratio: auto;
            object-fit: cover;
        }

        .pagination-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--color-border);
            background-color: var(--color-card);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
            padding: 0 12px;
        }

        .pagination-btn:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .pagination-btn.active {
            background-color: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }

        .sidebar-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            margin-bottom: 24px;
        }

        .sidebar-card .sidebar-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--color-primary);
            letter-spacing: -0.01em;
        }

        .sidebar-link {
            display: block;
            padding: 10px 0;
            font-size: 14px;
            color: var(--color-text-secondary);
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }

        .sidebar-link:last-child {
            border-bottom: none;
        }

        .sidebar-link:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }

        .sidebar-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            background-color: var(--color-bg);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
            margin: 0 6px 8px 0;
        }

        .sidebar-tag:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: rgba(255, 68, 43, 0.04);
        }

        .footer {
            background-color: var(--color-primary);
            color: var(--color-bg);
            padding: 64px 0 32px;
            margin-top: 80px;
        }

        .footer-heading {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #ffffff;
            letter-spacing: 0.02em;
        }

        .footer-link {
            display: inline-block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: all var(--transition-base);
        }

        .footer-link:hover {
            color: var(--color-accent);
        }

        .fade-in-up {
            opacity: 0;
            transform: translateY(14px);
            transition: opacity 280ms ease, transform 280ms ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            .fade-in-up {
                opacity: 1;
                transform: none;
                transition: none;
            }
            .article-card,
            .btn,
            .filter-pill,
            .pagination-btn {
                transition: none;
            }
            .article-card:hover {
                transform: none;
            }
            .btn:hover {
                transform: none;
            }
            .article-card:hover .article-image {
                transform: none;
            }
            html {
                scroll-behavior: auto;
            }
        }

        @media (max-width: 1024px) {
            .section {
                padding: 64px 0;
            }
            .hero-category {
                min-height: 360px;
            }
            .hero-category .hero-category-content {
                padding: 36px;
            }
            .article-card.featured {
                grid-template-columns: 1fr;
            }
            .article-card.featured .article-image {
                aspect-ratio: 16/9;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .hero-category {
                min-height: 320px;
                border-radius: 20px;
                margin-top: 20px;
            }
            .hero-category .hero-category-content {
                padding: 24px;
            }
            .hero-category .hero-category-content h1 {
                font-size: 28px !important;
            }
            .container {
                padding: 0 16px;
            }
            .header-nav {
                padding: 0 16px;
                height: 64px;
            }
            .footer {
                margin-top: 56px;
                padding: 48px 0 24px;
            }
        }

        @media (max-width: 520px) {
            .hero-category {
                min-height: 280px;
            }
            .hero-category .hero-category-content h1 {
                font-size: 24px !important;
            }
            .hero-category .hero-category-content p {
                font-size: 14px;
                line-height: 1.7;
            }
            .filter-pill {
                font-size: 12px;
                padding: 6px 14px;
            }
            .article-card.featured .article-content {
                padding: 20px;
            }
            .article-card .article-content {
                padding: 20px;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #0F1110;
            --color-accent: #FF442B;
            --color-accent-alt: #C6F432;
            --color-bg: #F6F5F1;
            --color-card: #FFFFFF;
            --color-text-secondary: #1C1D1B;
            --color-text-muted: #6B6F6A;
            --color-border: #E5E3DC;
            --color-dark-card: #1C1D1B;
            --radius-large: 28px;
            --radius-card: 20px;
            --radius-tag: 8px;
            --radius-pill: 999px;
            --shadow-default: 1px solid #E5E3DC, 0 12px 30px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-dark-card: 1px solid rgba(255, 255, 255, 0.08);
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }

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

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 80px 0;
        }

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

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 16px;
            padding: 14px 28px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background-color: var(--color-accent);
            color: #ffffff;
        }

        .btn-primary:hover {
            background-color: #d63a22;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 68, 43, 0.35);
        }

        .btn-primary .arrow {
            transition: transform var(--transition-base);
        }

        .btn-primary:hover .arrow {
            transform: translateX(4px);
        }

        .btn-dark {
            background-color: var(--color-primary);
            color: #ffffff;
        }

        .btn-dark:hover {
            background-color: #2a2d2b;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 17, 16, 0.3);
        }

        .btn-light {
            background-color: #ffffff;
            color: var(--color-primary);
        }

        .btn-light:hover {
            background-color: #f0ede6;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
        }

        .btn-outline-light {
            background-color: transparent;
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }

        .btn-outline-dark {
            background-color: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }

        .btn-outline-dark:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }

        .tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.03em;
            line-height: 1.5;
        }

        .tag-accent {
            background-color: var(--color-accent);
            color: #ffffff;
        }

        .tag-green {
            background-color: var(--color-accent-alt);
            color: var(--color-primary);
        }

        .tag-outline {
            border: 1px solid var(--color-border);
            background-color: transparent;
            color: var(--color-text-secondary);
        }

        .tag-dark {
            background-color: rgba(255, 255, 255, 0.12);
            color: var(--color-bg);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .section-label::before {
            content: '';
            width: 28px;
            height: 2px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-base);
            position: relative;
        }

        .nav-link:hover {
            color: var(--color-accent);
            background-color: rgba(255, 68, 43, 0.06);
        }

        .nav-link.active {
            color: var(--color-accent);
            font-weight: 600;
            background-color: rgba(255, 68, 43, 0.08);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }

        .announcement-bar {
            background-color: var(--color-primary);
            color: #ffffff;
            font-size: 13px;
            padding: 8px 24px;
            text-align: center;
            letter-spacing: 0.03em;
        }

        .announcement-bar strong {
            color: var(--color-accent-alt);
            font-weight: 700;
        }

        .header-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 0 24px;
            height: 72px;
            background-color: #ffffff;
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .header-nav.scrolled {
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
            border-bottom-color: transparent;
        }

        .card-default {
            background-color: var(--color-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-default);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .card-default:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .card-dark {
            background-color: var(--color-dark-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-dark-card);
            overflow: hidden;
        }

        .card-image {
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .card-image img {
            transition: transform 400ms ease;
        }

        .card-default:hover .card-image img,
        .card-dark:hover .card-image img {
            transform: scale(1.03);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            padding: 24px 0;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-base);
        }

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

        .breadcrumb .separator {
            color: var(--color-border);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        .filter-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            background-color: #ffffff;
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .filter-pill:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .filter-pill.active {
            background-color: var(--color-primary);
            border-color: var(--color-primary);
            color: #ffffff;
        }

        .filter-select {
            padding: 9px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            background-color: #ffffff;
            color: var(--color-text-secondary);
            cursor: pointer;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%236B6F6A' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            padding-right: 40px;
        }

        .filter-select:focus {
            outline: none;
            border-color: var(--color-accent);
        }

        .read-more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            color: var(--color-primary);
            transition: all var(--transition-base);
        }

        .read-more-link .arrow {
            transition: transform var(--transition-base);
        }

        .read-more-link:hover {
            color: var(--color-accent);
        }

        .read-more-link:hover .arrow {
            transform: translateX(4px);
        }

        .sidebar-card {
            background-color: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 20px;
            transition: all var(--transition-base);
        }

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

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            background-color: #ffffff;
            overflow: hidden;
            transition: all var(--transition-base);
            margin-bottom: 12px;
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--color-primary);
            user-select: none;
            transition: all var(--transition-base);
        }

        .faq-question:hover {
            color: var(--color-accent);
        }

        .faq-icon {
            font-size: 24px;
            font-weight: 300;
            color: var(--color-accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            line-height: 1;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 400ms ease, padding 300ms ease;
            padding: 0 24px;
            color: var(--color-text-secondary);
            font-size: 15px;
            line-height: 1.9;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 24px 24px;
        }

        .pagination {
            display: flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
            padding: 32px 0;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            background-color: #ffffff;
            color: var(--color-text-secondary);
        }

        .pagination a:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }

        .pagination .current-page {
            background-color: var(--color-primary);
            border-color: var(--color-primary);
            color: #ffffff;
            font-weight: 700;
        }

        .footer {
            background-color: var(--color-primary);
            color: #ffffff;
            padding: 60px 0 32px;
        }

        .footer-heading {
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 16px;
        }

        .footer-link {
            color: #9CA3AF;
            font-size: 14px;
            transition: color var(--transition-base);
        }

        .footer-link:hover {
            color: var(--color-accent);
        }

        .mobile-menu {
            position: fixed;
            top: 0;
            right: -100%;
            width: 100%;
            max-width: 360px;
            height: 100vh;
            background-color: #ffffff;
            z-index: 1000;
            transition: right 400ms cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: -8px 0 40px rgba(0, 0, 0, 0.15);
            display: flex;
            flex-direction: column;
            padding: 24px;
        }

        .mobile-menu.open {
            right: 0;
        }

        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-color: rgba(0, 0, 0, 0.4);
            z-index: 999;
            opacity: 0;
            pointer-events: none;
            transition: opacity 300ms ease;
        }

        .mobile-menu-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-nav-link {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-primary);
            padding: 14px 0;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }

        .mobile-nav-link:hover {
            color: var(--color-accent);
            padding-left: 8px;
        }

        .mobile-nav-link.active {
            color: var(--color-accent);
        }

        .hero-category {
            position: relative;
            padding: 100px 0;
            overflow: hidden;
            background-image: linear-gradient(135deg, rgba(15, 17, 16, 0.92) 0%, rgba(15, 17, 16, 0.75) 50%, rgba(15, 17, 16, 0.55) 100%), url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            color: #ffffff;
        }

        .hero-category::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-accent), var(--color-accent-alt));
        }

        .stat-number {
            font-size: 56px;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--color-accent);
            line-height: 1.1;
        }

        .stat-label {
            font-size: 15px;
            color: #9CA3AF;
            margin-top: 8px;
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }

            .hero-category {
                padding: 60px 0;
            }

            .stat-number {
                font-size: 38px;
            }

            .header-nav {
                padding: 0 16px;
                height: 60px;
            }

            .container {
                padding: 0 16px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-answer {
                font-size: 14px;
            }

            .pagination a,
            .pagination span {
                width: 34px;
                height: 34px;
                font-size: 13px;
            }

            .btn {
                font-size: 14px;
                padding: 12px 22px;
            }
        }

        @media (max-width: 520px) {
            .hero-category {
                padding: 48px 0;
            }

            .section {
                padding: 40px 0;
            }

            .stat-number {
                font-size: 32px;
            }

            .filter-pill {
                font-size: 12px;
                padding: 6px 12px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #0F1110;
            --color-accent: #FF442B;
            --color-accent-alt: #C6F432;
            --color-bg: #F6F5F1;
            --color-card: #FFFFFF;
            --color-text-secondary: #1C1D1B;
            --color-text-muted: #6B6F6A;
            --color-border: #E5E3DC;
            --color-dark-card: #1C1D1B;
            --radius-large: 28px;
            --radius-card: 20px;
            --radius-tag: 8px;
            --radius-pill: 999px;
            --shadow-default: 1px solid #E5E3DC, 0 12px 30px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-dark-card: 1px solid rgba(255, 255, 255, 0.08);
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }

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

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 80px 0;
        }

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

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 16px;
            padding: 14px 28px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background-color: var(--color-accent);
            color: #ffffff;
        }
        .btn-primary:hover {
            background-color: #d63a22;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 68, 43, 0.35);
        }
        .btn-primary .arrow {
            transition: transform var(--transition-base);
        }
        .btn-primary:hover .arrow {
            transform: translateX(4px);
        }

        .btn-dark {
            background-color: var(--color-primary);
            color: #ffffff;
        }
        .btn-dark:hover {
            background-color: #2a2d2b;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 17, 16, 0.3);
        }

        .btn-light {
            background-color: #ffffff;
            color: var(--color-primary);
        }
        .btn-light:hover {
            background-color: #f0ede6;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
        }

        .btn-outline-light {
            background-color: transparent;
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }

        .btn-outline-dark {
            background-color: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }
        .btn-outline-dark:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }

        .tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.03em;
            line-height: 1.5;
        }
        .tag-accent {
            background-color: var(--color-accent);
            color: #ffffff;
        }
        .tag-green {
            background-color: var(--color-accent-alt);
            color: var(--color-primary);
        }
        .tag-outline {
            border: 1px solid var(--color-border);
            background-color: transparent;
            color: var(--color-text-secondary);
        }
        .tag-dark {
            background-color: rgba(255, 255, 255, 0.12);
            color: var(--color-bg);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .section-label::before {
            content: '';
            width: 28px;
            height: 2px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }

        .section-label-light {
            color: var(--color-accent-alt);
        }
        .section-label-light::before {
            background-color: var(--color-accent-alt);
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-base);
            position: relative;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--color-accent);
            background-color: rgba(255, 68, 43, 0.06);
        }
        .nav-link.active {
            color: var(--color-accent);
            font-weight: 700;
            background-color: rgba(255, 68, 43, 0.08);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }

        .header-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: 72px;
            padding: 0 24px;
            max-width: 1280px;
            margin: 0 auto;
        }

        .announcement-bar {
            background-color: var(--color-primary);
            color: #ffffff;
            text-align: center;
            font-size: 13px;
            padding: 8px 16px;
            line-height: 1.5;
            letter-spacing: 0.02em;
        }
        .announcement-bar strong {
            color: var(--color-accent-alt);
            font-weight: 700;
        }

        #site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: #ffffff;
            border-bottom: 1px solid transparent;
            transition: all var(--transition-base);
        }
        #site-header.scrolled {
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

        .footer {
            background-color: var(--color-primary);
            color: #ffffff;
            padding: 64px 0 32px;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
            color: #ffffff;
        }
        .footer-link {
            font-size: 14px;
            color: #9CA3AF;
            transition: color var(--transition-base);
            display: inline-block;
        }
        .footer-link:hover {
            color: var(--color-accent-alt);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            padding: 24px 0 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb .sep {
            color: #B0B0AA;
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--color-accent);
            font-weight: 600;
        }

        .card-hover {
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            transform: translateY(0);
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card-image-wrap {
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .card-image-wrap img {
            transition: transform var(--transition-base) ease;
        }
        .card-hover:hover .card-image-wrap img {
            transform: scale(1.03);
        }

        .read-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--color-accent);
            transition: all var(--transition-base);
        }
        .read-more-link .arrow {
            transition: transform var(--transition-base);
        }
        .read-more-link:hover {
            color: #d63a22;
        }
        .read-more-link:hover .arrow {
            transform: translateX(4px);
        }

        .pagination-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 12px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--color-border);
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-secondary);
            background-color: #ffffff;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .pagination-btn:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }
        .pagination-btn.active {
            background-color: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-bottom-color: #d0cec6;
        }
        .faq-trigger {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 22px 4px;
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            transition: color var(--transition-base);
        }
        .faq-trigger:hover {
            color: var(--color-accent);
        }
        .faq-trigger .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 1.5px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            color: var(--color-text-muted);
            transition: all var(--transition-base);
        }
        .faq-item.open .faq-icon {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: rotate(45deg);
        }
        .faq-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 4px;
            background-color: transparent;
        }
        .faq-item.open .faq-panel {
            max-height: 300px;
            padding: 0 4px 22px;
            background-color: rgba(246, 245, 241, 0.7);
            border-radius: 0 0 12px 12px;
        }
        .faq-panel p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.9;
            margin: 0;
        }

        .filter-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            background-color: #ffffff;
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .filter-pill:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }
        .filter-pill.active {
            background-color: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }

        .hero-cat {
            position: relative;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            border-radius: var(--radius-large);
            overflow: hidden;
            margin-top: 24px;
        }
        .hero-cat::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(15, 17, 16, 0.85) 0%, rgba(15, 17, 16, 0.55) 45%, rgba(15, 17, 16, 0.25) 100%);
        }
        .hero-cat-content {
            position: relative;
            z-index: 2;
            padding: 40px 44px;
            max-width: 600px;
        }
        .hero-cat-content h1 {
            font-size: 40px;
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.25;
            color: #ffffff;
            margin: 0 0 12px;
        }
        .hero-cat-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin: 0;
        }

        .feature-card {
            background-color: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 28px;
            transition: all var(--transition-base);
            height: 100%;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .feature-card .icon-box {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 16px;
            background-color: var(--color-bg);
            color: var(--color-accent);
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--color-primary);
        }
        .feature-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.8;
            margin: 0;
        }

        .cta-input {
            background-color: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #ffffff;
            padding: 14px 20px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            width: 100%;
            transition: border-color var(--transition-base);
        }
        .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .cta-input:focus {
            border-color: var(--color-accent);
            outline: none;
        }

        .mobile-menu-panel {
            position: fixed;
            top: 0;
            right: -100%;
            width: 100%;
            max-width: 380px;
            height: 100vh;
            background-color: #ffffff;
            z-index: 100;
            transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            flex-direction: column;
            box-shadow: -8px 0 30px rgba(0, 0, 0, 0.1);
        }
        .mobile-menu-panel.open {
            right: 0;
        }
        .mobile-menu-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(15, 17, 16, 0.5);
            z-index: 90;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }
        .mobile-menu-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-menu-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            border-bottom: 1px solid var(--color-border);
        }
        .mobile-menu-body {
            flex: 1;
            overflow-y: auto;
            padding: 16px 24px;
        }
        .mobile-menu-body .nav-link {
            display: block;
            font-size: 18px;
            padding: 14px 8px;
            border-bottom: 1px solid var(--color-border);
            border-radius: 0;
            font-weight: 600;
        }
        .mobile-menu-body .nav-link.active {
            color: var(--color-accent);
            background: transparent;
        }
        .mobile-menu-body .nav-link.active::after {
            display: none;
        }
        .mobile-menu-footer {
            padding: 20px 24px;
            border-top: 1px solid var(--color-border);
        }

        @media (max-width: 1024px) {
            .hero-cat-content h1 {
                font-size: 32px;
            }
            .section {
                padding: 60px 0;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                padding: 0 16px;
            }
            .container {
                padding: 0 16px;
            }
            .hero-cat {
                min-height: 280px;
                border-radius: var(--radius-card);
            }
            .hero-cat-content {
                padding: 28px 24px;
            }
            .hero-cat-content h1 {
                font-size: 26px;
            }
            .hero-cat-content p {
                font-size: 14px;
            }
            .section {
                padding: 48px 0;
            }
            .breadcrumb {
                font-size: 13px;
                padding: 16px 0 4px;
            }
        }

        @media (max-width: 520px) {
            .hero-cat-content h1 {
                font-size: 22px;
            }
            .announcement-bar {
                font-size: 12px;
                padding: 6px 12px;
            }
            .btn {
                font-size: 14px;
                padding: 12px 20px;
            }
            .filter-pill {
                font-size: 12px;
                padding: 6px 14px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
            }
        }