/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0A4B7A;
            --primary-light: #1A6BA0;
            --primary-dark: #062D4A;
            --primary-rgb: 10, 75, 122;
            --secondary: #F5A623;
            --secondary-light: #FFC44D;
            --secondary-dark: #D4891A;
            --accent: #E8F4FD;
            --accent-soft: #F0F8FF;
            --bg: #FFFFFF;
            --bg-light: #F7FAFC;
            --bg-dark: #0A1A2F;
            --text: #1A202C;
            --text-light: #4A5568;
            --text-muted: #A0AEC0;
            --border: #E2E8F0;
            --border-light: #EDF2F7;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --shadow-glow: 0 10px 40px rgba(245, 166, 35, 0.25);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 72px;
            --max-width: 1200px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }

        ::selection {
            background: var(--secondary);
            color: #fff;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container--narrow {
            max-width: 900px;
        }

        .container--wide {
            max-width: 1360px;
        }

        /* ===== Section ===== */
        .section {
            padding: 80px 0;
        }

        .section--dark {
            background: var(--bg-dark);
            color: #fff;
        }
        .section--dark h2,
        .section--dark h3,
        .section--dark .section__subtitle {
            color: #fff;
        }

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

        .section--accent {
            background: var(--accent);
        }

        .section__label {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 50px;
            background: var(--secondary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section__title {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text);
            letter-spacing: -0.5px;
        }

        .section--dark .section__title {
            color: #fff;
        }

        .section__subtitle {
            font-size: 18px;
            color: var(--text-light);
            max-width: 680px;
            margin: 0 auto 48px;
            text-align: center;
            line-height: 1.6;
        }

        .section--dark .section__subtitle {
            color: rgba(255, 255, 255, 0.75);
        }

        .section__header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section__header--left {
            text-align: left;
        }
        .section__header--left .section__subtitle {
            margin-left: 0;
        }

        /* ===== Button ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            border: 2px solid transparent;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .btn--primary {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
        }
        .btn--primary:hover {
            background: var(--secondary-dark);
            border-color: var(--secondary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }

        .btn--outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn--outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn--outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn--outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn--white {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }
        .btn--white:hover {
            background: var(--bg-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn--sm {
            padding: 10px 22px;
            font-size: 13px;
        }

        .btn--lg {
            padding: 18px 44px;
            font-size: 17px;
        }

        .btn i {
            font-size: 14px;
        }
        .btn--lg i {
            font-size: 16px;
        }

        /* ===== Navigation ===== */
        .nav {
            position: fixed;
            top: 20px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 40px);
            max-width: var(--max-width);
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(16px) saturate(180%);
            -webkit-backdrop-filter: blur(16px) saturate(180%);
            border-radius: 60px;
            padding: 0 8px;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.3);
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: all var(--transition);
        }

        .nav--scrolled {
            top: 12px;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.12);
            background: rgba(255, 255, 255, 0.95);
        }

        .nav__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 16px;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
            transition: opacity var(--transition);
        }
        .nav__logo:hover {
            opacity: 0.85;
            color: var(--primary);
        }
        .nav__logo-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav__links {
            display: flex;
            align-items: center;
            gap: 4px;
            height: 100%;
        }

        .nav__link {
            padding: 10px 20px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav__link:hover {
            color: var(--primary);
            background: rgba(10, 75, 122, 0.06);
        }
        .nav__link--active {
            color: #fff;
            background: var(--primary);
        }
        .nav__link--active:hover {
            color: #fff;
            background: var(--primary-light);
        }

        .nav__actions {
            display: flex;
            align-items: center;
            gap: 8px;
            padding-right: 8px;
        }

        .nav__toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--text);
            background: transparent;
            transition: background var(--transition);
        }
        .nav__toggle:hover {
            background: var(--bg-light);
        }

        /* Mobile Nav */
        .nav__mobile {
            display: none;
            position: fixed;
            top: 84px;
            left: 20px;
            right: 20px;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: var(--radius-md);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
            padding: 16px;
            z-index: 999;
            border: 1px solid var(--border-light);
            opacity: 0;
            transform: translateY(-12px) scale(0.96);
            pointer-events: none;
            transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .nav__mobile--open {
            opacity: 1;
            transform: translateY(0) scale(1);
            pointer-events: auto;
        }

        .nav__mobile-link {
            display: block;
            padding: 14px 20px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            transition: all var(--transition);
        }
        .nav__mobile-link:hover {
            background: var(--accent);
            color: var(--primary);
        }
        .nav__mobile-link--active {
            background: var(--primary);
            color: #fff;
        }
        .nav__mobile-link--active:hover {
            background: var(--primary-light);
            color: #fff;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 140px 24px 80px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
            z-index: 0;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 26, 47, 0.3) 0%, rgba(10, 26, 47, 0.7) 100%);
            z-index: 1;
        }

        .hero__pattern {
            position: absolute;
            inset: 0;
            z-index: 1;
            background-image: radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
            background-size: 40px 40px;
        }

        .hero__content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 28px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .hero__badge i {
            color: var(--secondary);
        }

        .hero__title {
            font-size: 58px;
            font-weight: 900;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 20px;
            letter-spacing: -1.5px;
        }
        .hero__title span {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero__desc {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            max-width: 600px;
            margin: 0 auto 36px;
        }

        .hero__actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .hero__stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: center;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }

        .hero__stat {
            text-align: center;
        }
        .hero__stat-num {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero__stat-num span {
            color: var(--secondary);
        }
        .hero__stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        /* ===== Cards ===== */
        .card {
            background: var(--bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .card__image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .card__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .card:hover .card__image img {
            transform: scale(1.05);
        }

        .card__body {
            padding: 24px;
        }

        .card__tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .card__title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card__title a {
            color: var(--text);
        }
        .card__title a:hover {
            color: var(--primary);
        }

        .card__text {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.6;
        }

        .card__meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 14px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .card__meta i {
            margin-right: 4px;
        }

        /* Feature Card */
        .feature-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .feature-card__icon {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            background: var(--accent);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin: 0 auto 20px;
            transition: all var(--transition);
        }
        .feature-card:hover .feature-card__icon {
            background: var(--primary);
            color: #fff;
        }

        .feature-card__title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .feature-card__text {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.7;
        }

        /* ===== Grid ===== */
        .grid {
            display: grid;
            gap: 28px;
        }

        .grid--3 {
            grid-template-columns: repeat(3, 1fr);
        }

        .grid--4 {
            grid-template-columns: repeat(4, 1fr);
        }

        .grid--2 {
            grid-template-columns: repeat(2, 1fr);
        }

        /* ===== Destination Card (large image) ===== */
        .dest-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            aspect-ratio: 4 / 5;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
        }
        .dest-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .dest-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .dest-card:hover img {
            transform: scale(1.05);
        }

        .dest-card__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.8) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 28px;
            color: #fff;
        }

        .dest-card__title {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }

        .dest-card__sub {
            font-size: 14px;
            opacity: 0.8;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== Stat Block ===== */
        .stat-block {
            text-align: center;
            padding: 32px 20px;
        }

        .stat-block__num {
            font-size: 44px;
            font-weight: 900;
            color: var(--secondary);
            line-height: 1.2;
        }

        .stat-block__label {
            font-size: 15px;
            color: var(--text-light);
            margin-top: 6px;
            font-weight: 500;
        }

        .section--dark .stat-block__label {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
        }
        .faq-item:first-child {
            padding-top: 0;
        }

        .faq-item__question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .faq-item__question:hover {
            color: var(--primary);
        }
        .faq-item__question i {
            color: var(--primary);
            font-size: 14px;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item--open .faq-item__question i {
            transform: rotate(180deg);
        }

        .faq-item__answer {
            padding-top: 12px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.7;
            display: none;
        }
        .faq-item--open .faq-item__answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }

        .cta__content {
            position: relative;
            z-index: 1;
        }

        .cta__title {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta__text {
            color: rgba(255, 255, 255, 0.8);
            font-size: 17px;
            max-width: 540px;
            margin: 0 auto 28px;
        }

        .cta__actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 32px;
        }

        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer__brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer__brand-icon {
            width: 36px;
            height: 36px;
            background: var(--secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
        }

        .footer__about {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer__heading {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }

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

        .footer__link {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: all var(--transition);
        }
        .footer__link:hover {
            color: var(--secondary);
            padding-left: 4px;
        }

        .footer__bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer__social {
            display: flex;
            gap: 12px;
        }

        .footer__social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.6);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            transition: all var(--transition);
        }
        .footer__social a:hover {
            background: var(--secondary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Post List Item ===== */
        .post-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: flex-start;
        }
        .post-item:first-child {
            padding-top: 0;
        }
        .post-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .post-item__thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-light);
        }
        .post-item__thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .post-item__content {
            flex: 1;
            min-width: 0;
        }

        .post-item__title {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .post-item__title a {
            color: var(--text);
        }
        .post-item__title a:hover {
            color: var(--primary);
        }

        .post-item__excerpt {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .post-item__meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .post-item__meta i {
            margin-right: 4px;
        }

        /* ===== Tag / Badge ===== */
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .tag:hover {
            background: var(--primary);
            color: #fff;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            background: var(--secondary);
            color: #fff;
        }

        /* ===== Divider ===== */
        .divider {
            width: 60px;
            height: 4px;
            border-radius: 4px;
            background: var(--secondary);
            margin: 0 auto 24px;
        }
        .divider--left {
            margin: 0 0 24px 0;
        }

        /* ===== Empty State ===== */
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            font-size: 15px;
        }
        .empty-state i {
            font-size: 40px;
            margin-bottom: 16px;
            opacity: 0.4;
            display: block;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero__title {
                font-size: 44px;
            }

            .grid--4 {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .cta {
                padding: 48px 32px;
            }
            .cta__title {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            .nav {
                top: 12px;
                width: calc(100% - 24px);
                height: 58px;
                border-radius: 40px;
                padding: 0 4px;
            }
            .nav__logo {
                font-size: 17px;
                padding: 0 10px;
            }
            .nav__logo-icon {
                width: 28px;
                height: 28px;
                font-size: 13px;
            }

            .nav__links {
                display: none;
            }

            .nav__actions .btn {
                display: none;
            }

            .nav__toggle {
                display: flex;
            }

            .nav__mobile {
                display: block;
            }

            .hero {
                min-height: 90vh;
                padding: 120px 20px 60px;
            }
            .hero__title {
                font-size: 34px;
            }
            .hero__desc {
                font-size: 17px;
            }
            .hero__stats {
                gap: 24px;
                margin-top: 40px;
                padding-top: 28px;
            }
            .hero__stat-num {
                font-size: 26px;
            }

            .section {
                padding: 56px 0;
            }
            .section__title {
                font-size: 28px;
            }
            .section__subtitle {
                font-size: 16px;
                margin-bottom: 32px;
            }

            .grid--3,
            .grid--4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .grid--2 {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .feature-card {
                padding: 28px 20px;
            }

            .post-item {
                flex-direction: column;
                gap: 12px;
            }
            .post-item__thumb {
                width: 100%;
                height: 180px;
            }

            .cta {
                padding: 36px 24px;
                border-radius: var(--radius-md);
            }
            .cta__title {
                font-size: 24px;
            }
            .cta__text {
                font-size: 15px;
            }

            .footer__grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer__bottom {
                flex-direction: column;
                text-align: center;
            }

            .stat-block__num {
                font-size: 34px;
            }
        }

        @media (max-width: 520px) {
            .hero__title {
                font-size: 28px;
            }
            .hero__desc {
                font-size: 15px;
            }
            .hero__actions {
                flex-direction: column;
                align-items: center;
            }
            .hero__actions .btn {
                width: 100%;
                max-width: 280px;
            }
            .hero__stats {
                flex-direction: column;
                gap: 16px;
            }

            .section__title {
                font-size: 24px;
            }

            .btn--lg {
                padding: 14px 28px;
                font-size: 15px;
            }

            .cta__actions {
                flex-direction: column;
                align-items: center;
            }
            .cta__actions .btn {
                width: 100%;
                max-width: 260px;
            }
        }

        /* ===== Utilities ===== */
        .text-center {
            text-align: center;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mt-48 {
            margin-top: 48px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .gap-12 {
            gap: 12px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-muted);
        }

        /* Focus-visible accessibility */
        :focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }

        /* Animations */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-up {
            animation: fadeUp 0.6s ease forwards;
        }
        .animate-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-delay-3 {
            animation-delay: 0.3s;
        }
        .animate-delay-4 {
            animation-delay: 0.4s;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e85d3a;
            --primary-light: #f07a5a;
            --primary-dark: #c94424;
            --primary-soft: #fdf0ec;
            --secondary: #1a2b4a;
            --secondary-light: #2c4270;
            --accent: #f0b34b;
            --accent-light: #f8d48a;
            --bg: #f9f7f5;
            --bg-card: #ffffff;
            --bg-dark: #0f1a2e;
            --bg-dark-soft: #16233b;
            --text: #1e1e2a;
            --text-light: #5a5a6e;
            --text-lighter: #8a8a9e;
            --text-white: #f5f0eb;
            --border: #e6e0da;
            --border-light: #f0ebe6;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.07);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-dark: 0 12px 36px rgba(0, 0, 0, 0.25);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container: 1200px;
            --header-h: 76px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            padding-top: var(--header-h);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container--narrow {
            max-width: 860px;
        }

        /* ===== 导航 ===== */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 32px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .nav__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.3px;
        }
        .nav__logo:hover {
            color: var(--primary);
        }
        .nav__logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 18px;
        }
        .nav__links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav__link {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            position: relative;
        }
        .nav__link:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav__link--active {
            color: #fff;
            background: var(--primary);
        }
        .nav__link--active:hover {
            color: #fff;
            background: var(--primary-dark);
        }
        .nav__actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav__toggle {
            display: none;
            background: none;
            font-size: 24px;
            color: var(--text);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav__toggle:hover {
            background: var(--border-light);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            transition: all var(--transition);
            cursor: pointer;
            border: 2px solid transparent;
            white-space: nowrap;
        }
        .btn--primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn--primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 93, 58, 0.35);
            color: #fff;
        }
        .btn--outline {
            background: transparent;
            color: var(--text);
            border-color: var(--border);
        }
        .btn--outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn--white {
            background: #fff;
            color: var(--text);
            border-color: #fff;
        }
        .btn--white:hover {
            background: var(--primary-soft);
            border-color: var(--primary-soft);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.10);
        }
        .btn--sm {
            padding: 8px 18px;
            font-size: 13px;
        }
        .btn--lg {
            padding: 16px 36px;
            font-size: 17px;
        }
        .btn:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 3px;
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            position: relative;
            min-height: 340px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: var(--bg-dark) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 60px 24px;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.78) 0%, rgba(15, 26, 46, 0.42) 100%);
            z-index: 1;
        }
        .page-hero__content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .page-hero__badge {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 50px;
            background: var(--accent);
            color: var(--text);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .page-hero .btn {
            margin: 0 6px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section--alt {
            background: var(--bg-card);
        }
        .section--dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section--dark h2,
        .section--dark h3 {
            color: #fff;
        }
        .section__header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section__header h2 {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }
        .section__header p {
            font-size: 17px;
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section--dark .section__header p {
            color: rgba(255, 255, 255, 0.7);
        }
        .section__tag {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 50px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .section--dark .section__tag {
            background: rgba(255, 255, 255, 0.10);
            color: var(--accent);
        }

        /* ===== 分类卡片网格 ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .cat-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
        }
        .cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-soft);
        }
        .cat-card__icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            background: var(--primary-soft);
            color: var(--primary);
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            transition: all var(--transition);
        }
        .cat-card:hover .cat-card__icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .cat-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .cat-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .cat-card .btn {
            margin-top: 4px;
        }

        /* ===== 攻略卡片 ===== */
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .guide-card__img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            display: block;
        }
        .guide-card__body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card__tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 50px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .guide-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .guide-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .guide-card__meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-lighter);
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }
        .guide-card__meta i {
            margin-right: 4px;
        }

        /* ===== 特色/数据条 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.10);
            transform: translateY(-4px);
        }
        .stat-item__num {
            font-size: 42px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-item__label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }

        /* ===== 流程 ===== */
        .steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }
        .step {
            text-align: center;
            padding: 32px 20px 28px;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }
        .step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step__num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
        }
        .step h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-item__q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-item__q:hover {
            background: var(--primary-soft);
        }
        .faq-item__q i {
            color: var(--primary);
            font-size: 18px;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-item__q i {
            transform: rotate(180deg);
        }
        .faq-item__a {
            padding: 0 24px 0;
            max-height: 0;
            overflow: hidden;
            transition: all 0.4s ease;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .faq-item.active .faq-item__a {
            padding: 0 24px 20px;
            max-height: 300px;
        }

        /* ===== CTA ===== */
        .cta {
            text-align: center;
            padding: 72px 24px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            position: relative;
            overflow: hidden;
        }
        .cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta * {
            position: relative;
            z-index: 1;
        }
        .cta h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta .btn--white:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
        }

        /* ===== 推荐列表 ===== */
        .rec-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }
        .rec-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--bg-card);
            padding: 18px 22px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .rec-item:hover {
            transform: translateX(6px);
            border-color: var(--primary-soft);
            box-shadow: var(--shadow);
        }
        .rec-item__index {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }
        .rec-item:nth-child(1) .rec-item__index {
            background: var(--primary);
            color: #fff;
        }
        .rec-item:nth-child(2) .rec-item__index {
            background: var(--accent);
            color: var(--text);
        }
        .rec-item:nth-child(3) .rec-item__index {
            background: var(--secondary);
            color: #fff;
        }
        .rec-item__content {
            flex: 1;
        }
        .rec-item__content h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .rec-item__content p {
            font-size: 14px;
            color: var(--text-light);
        }
        .rec-item__arrow {
            color: var(--text-lighter);
            font-size: 18px;
            transition: all var(--transition);
        }
        .rec-item:hover .rec-item__arrow {
            color: var(--primary);
            transform: translateX(4px);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 0;
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer__brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer__brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-size: 16px;
        }
        .footer__about {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer__heading {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer__links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer__link {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: all var(--transition);
        }
        .footer__link:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer__link i {
            width: 20px;
            text-align: center;
            margin-right: 6px;
        }
        .footer__bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer__social {
            display: flex;
            gap: 14px;
        }
        .footer__social a {
            color: rgba(255, 255, 255, 0.45);
            font-size: 20px;
            transition: all var(--transition);
        }
        .footer__social a:hover {
            color: var(--accent);
            transform: scale(1.15);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }
            .nav {
                padding: 0 16px;
                height: var(--header-h);
            }
            .nav__links {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 6px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.4s ease;
                border-radius: 0 0 var(--radius-sm) var(--radius-sm);
            }
            .nav__links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav__link {
                width: 100%;
                padding: 12px 18px;
                border-radius: var(--radius-sm);
            }
            .nav__toggle {
                display: block;
            }
            .nav .btn--primary.btn--sm {
                display: none;
            }

            .page-hero {
                min-height: 280px;
                padding: 48px 20px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero p {
                font-size: 16px;
            }

            .section {
                padding: 52px 0;
            }
            .section__header h2 {
                font-size: 28px;
            }
            .section__header p {
                font-size: 15px;
            }

            .grid-3,
            .grid-2,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .steps {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-item__num {
                font-size: 32px;
            }

            .cta {
                padding: 48px 20px;
            }
            .cta h2 {
                font-size: 26px;
            }

            .footer__grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer__bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }

            .rec-item {
                flex-wrap: wrap;
                padding: 14px 16px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero .btn {
                display: block;
                width: 100%;
                margin: 6px 0;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-item {
                padding: 18px 12px;
            }
            .stat-item__num {
                font-size: 28px;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-12 {
            margin-top: 12px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-40 {
            margin-top: 40px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #D94A3D;
            --primary-dark: #B83A2E;
            --primary-light: #FDE8E5;
            --secondary: #2B6B4A;
            --secondary-light: #E8F5EE;
            --accent: #F5A623;
            --accent-light: #FEF3D9;
            --bg: #F9F8F6;
            --bg-alt: #F0EDE9;
            --bg-dark: #1E1B1A;
            --text: #2D2A28;
            --text-light: #6B6560;
            --text-muted: #9C958F;
            --border: #E2DCD6;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-md: 14px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow: 0 8px 30px rgba(0,0,0,0.07);
            --shadow-lg: 0 20px 50px rgba(0,0,0,0.1);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container: 1200px;
            --header-h: 76px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; }
        .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

        /* ===== Header / Nav ===== */
        .nav {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--header-h);
            display: flex; align-items: center; justify-content: space-between;
            padding: 0 32px;
            background: rgba(255,255,255,0.88);
            backdrop-filter: blur(24px) saturate(180%);
            -webkit-backdrop-filter: blur(24px) saturate(180%);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .nav--scrolled { box-shadow: var(--shadow); }
        .nav__logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.35rem; font-weight: 800;
            color: var(--text); letter-spacing: -0.3px;
        }
        .nav__logo-icon {
            width: 38px; height: 38px;
            display: flex; align-items: center; justify-content: center;
            background: var(--primary); color: #fff;
            border-radius: 10px; font-size: 1.1rem;
        }
        .nav__links { display: flex; align-items: center; gap: 6px; }
        .nav__link {
            padding: 8px 18px; border-radius: 100px;
            font-size: 0.9rem; font-weight: 500;
            color: var(--text-light); transition: var(--transition);
        }
        .nav__link:hover { background: var(--primary-light); color: var(--primary); }
        .nav__link--active, .nav__link--active:hover {
            background: var(--primary); color: #fff; font-weight: 600;
        }
        .nav__actions { display: flex; align-items: center; gap: 14px; }
        .nav__toggle { display: none; font-size: 1.4rem; color: var(--text); cursor: pointer; padding: 6px; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 12px 28px; border-radius: 100px;
            font-size: 0.95rem; font-weight: 600;
            cursor: pointer; transition: var(--transition);
            border: 2px solid transparent; text-align: center;
            white-space: nowrap;
        }
        .btn--primary {
            background: var(--primary); color: #fff; border-color: var(--primary);
        }
        .btn--primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(217,74,61,0.35); }
        .btn--outline {
            background: transparent; color: var(--primary); border-color: var(--primary);
        }
        .btn--outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        .btn--sm { padding: 8px 20px; font-size: 0.85rem; }
        .btn--lg { padding: 16px 40px; font-size: 1.05rem; }

        /* ===== Article Banner ===== */
        .article-banner {
            margin-top: var(--header-h);
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #2D2826 100%);
            position: relative; overflow: hidden;
            min-height: 320px;
            display: flex; align-items: center;
        }
        .article-banner::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.2; pointer-events: none;
        }
        .article-banner .container { position: relative; z-index: 2; }
        .article-banner__breadcrumb {
            display: flex; align-items: center; gap: 8px;
            font-size: 0.85rem; color: rgba(255,255,255,0.6);
            margin-bottom: 20px; flex-wrap: wrap;
        }
        .article-banner__breadcrumb a { color: rgba(255,255,255,0.7); }
        .article-banner__breadcrumb a:hover { color: var(--accent); }
        .article-banner__breadcrumb .sep { color: rgba(255,255,255,0.3); }
        .article-banner__cat {
            display: inline-block;
            padding: 4px 14px; border-radius: 100px;
            background: var(--accent); color: var(--bg-dark);
            font-size: 0.8rem; font-weight: 600; letter-spacing: 0.3px;
            margin-bottom: 16px;
        }
        .article-banner__title {
            font-size: 2.6rem; color: #fff;
            max-width: 880px; line-height: 1.25;
            font-weight: 800; letter-spacing: -0.5px;
        }
        .article-banner__meta {
            display: flex; align-items: center; gap: 24px;
            margin-top: 20px; color: rgba(255,255,255,0.7);
            font-size: 0.9rem; flex-wrap: wrap;
        }
        .article-banner__meta i { margin-right: 6px; }

        /* ===== Article Content ===== */
        .article-main { padding: 60px 0 80px; }
        .article-layout {
            display: grid; grid-template-columns: 1fr 320px;
            gap: 48px; align-items: start;
        }
        .article-body {
            background: #fff; border-radius: var(--radius);
            box-shadow: var(--shadow-sm); padding: 48px;
            border: 1px solid var(--border);
        }
        .article-body h2 {
            font-size: 1.6rem; margin: 40px 0 16px;
            color: var(--text); padding-bottom: 10px;
            border-bottom: 3px solid var(--primary-light);
        }
        .article-body h3 { font-size: 1.25rem; margin: 32px 0 12px; color: var(--text); }
        .article-body p { margin-bottom: 18px; color: var(--text-light); font-size: 1.02rem; }
        .article-body ul, .article-body ol { margin: 0 0 20px 24px; color: var(--text-light); }
        .article-body li { margin-bottom: 8px; list-style: disc; }
        .article-body a { color: var(--primary); text-decoration: underline; }
        .article-body a:hover { color: var(--primary-dark); }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light); padding: 20px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0; font-style: italic; color: var(--text);
        }
        .article-body img {
            border-radius: var(--radius-sm); margin: 24px 0;
            width: 100%; object-fit: cover;
        }
        .article-body .img-caption {
            font-size: 0.85rem; color: var(--text-muted);
            text-align: center; margin-top: -12px; margin-bottom: 24px;
        }
        .article-tags {
            display: flex; flex-wrap: wrap; gap: 10px;
            margin-top: 40px; padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .article-tags__item {
            padding: 6px 16px; border-radius: 100px;
            background: var(--bg); color: var(--text-light);
            font-size: 0.85rem; border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-tags__item:hover { background: var(--primary-light); color: var(--primary); border-color: var(--primary); }

        /* ===== Sidebar ===== */
        .article-sidebar { display: flex; flex-direction: column; gap: 32px; }
        .sidebar-card {
            background: #fff; border-radius: var(--radius);
            box-shadow: var(--shadow-sm); padding: 28px;
            border: 1px solid var(--border);
        }
        .sidebar-card__title {
            font-size: 1.05rem; font-weight: 700;
            margin-bottom: 18px; padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-light);
            display: flex; align-items: center; gap: 8px;
        }
        .sidebar-card__title i { color: var(--primary); }
        .sidebar-list { display: flex; flex-direction: column; gap: 12px; }
        .sidebar-list__item {
            display: flex; gap: 12px; align-items: flex-start;
            padding: 10px 0; border-bottom: 1px solid var(--bg);
            transition: var(--transition);
        }
        .sidebar-list__item:hover { padding-left: 6px; }
        .sidebar-list__item:last-child { border-bottom: none; }
        .sidebar-list__img {
            width: 60px; height: 60px; border-radius: var(--radius-sm);
            object-fit: cover; flex-shrink: 0;
            background: var(--bg-alt);
        }
        .sidebar-list__info h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 4px; }
        .sidebar-list__info h4 a:hover { color: var(--primary); }
        .sidebar-list__info span { font-size: 0.78rem; color: var(--text-muted); }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff; border: none; text-align: center;
        }
        .sidebar-cta h4 { font-size: 1.1rem; margin-bottom: 8px; }
        .sidebar-cta p { font-size: 0.88rem; opacity: 0.9; margin-bottom: 18px; }
        .sidebar-cta .btn--outline { border-color: #fff; color: #fff; }
        .sidebar-cta .btn--outline:hover { background: #fff; color: var(--primary); }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.75);
            padding: 60px 0 32px;
        }
        .footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer__brand { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 14px; }
        .footer__brand-icon { width: 34px; height: 34px; display: flex; align-items: center; justify-content: center; background: var(--primary); border-radius: 8px; font-size: 1rem; color: #fff; }
        .footer__about { font-size: 0.9rem; line-height: 1.7; max-width: 360px; color: rgba(255,255,255,0.6); }
        .footer__heading { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
        .footer__links { display: flex; flex-direction: column; gap: 10px; }
        .footer__link { font-size: 0.88rem; color: rgba(255,255,255,0.6); transition: var(--transition); }
        .footer__link:hover { color: var(--accent); padding-left: 4px; }
        .footer__bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 0.85rem; color: rgba(255,255,255,0.4); flex-wrap: wrap; gap: 16px; }
        .footer__social { display: flex; gap: 14px; }
        .footer__social a { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.6); transition: var(--transition); font-size: 1rem; }
        .footer__social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }

        /* ===== 404 State ===== */
        .not-found-wrap { text-align: center; padding: 80px 20px; }
        .not-found-wrap .icon { font-size: 4rem; color: var(--text-muted); margin-bottom: 20px; }
        .not-found-wrap h2 { font-size: 1.6rem; margin-bottom: 12px; }
        .not-found-wrap p { color: var(--text-light); margin-bottom: 28px; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
            .footer__grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .nav { padding: 0 16px; }
            .nav__links { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 16px 20px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
            .nav__links.open { display: flex; }
            .nav__link { padding: 12px 18px; width: 100%; }
            .nav__toggle { display: block; }
            .nav__actions .btn { display: none; }
            .article-banner { padding: 60px 0 40px; min-height: 240px; }
            .article-banner__title { font-size: 1.8rem; }
            .article-body { padding: 24px; }
            .article-body h2 { font-size: 1.3rem; }
            .article-sidebar { grid-template-columns: 1fr; }
            .footer__grid { grid-template-columns: 1fr; gap: 32px; }
            .footer__bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .article-banner__title { font-size: 1.4rem; }
            .article-banner__meta { gap: 14px; font-size: 0.82rem; flex-direction: column; align-items: flex-start; }
            .article-body { padding: 16px; }
            .article-body p { font-size: 0.95rem; }
            .container { padding: 0 14px; }
        }