/* roulang page: index */
:root {
            --primary: #0F8A7D;
            --primary-dark: #0D786D;
            --primary-light: #EAF5F2;
            --accent: #F39C6D;
            --accent-dark: #E88A5E;
            --gold: #E8C07A;
            --bg: #FAF8F2;
            --white: #FFFFFF;
            --text: #2F2A26;
            --text-secondary: #7A6F64;
            --text-muted: #A79C91;
            --heading: #1F3531;
            --border: #E9E4DC;
            --shadow: 0 8px 20px rgba(63, 52, 40, 0.06);
            --shadow-hover: 0 12px 28px rgba(63, 52, 40, 0.12);
            --radius: 14px;
            --radius-sm: 10px;
            --container-w: 1200px;
            --header-h: 72px;
            --transition: all 0.25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        input {
            font-family: inherit;
        }
        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 500;
            padding: 12px 26px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            line-height: 1.4;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(15, 138, 125, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.15);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
        }
        .btn-outline:active {
            background: rgba(15, 138, 125, 0.2);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            padding: 14px 38px;
            font-size: 17px;
            border-radius: 12px;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(243, 156, 109, 0.35);
        }
        .btn-accent:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.12);
        }
        .tag {
            display: inline-block;
            font-size: 12px;
            padding: 4px 14px;
            border-radius: 20px;
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .tag-outline {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--white);
        }
        .section-light {
            background: var(--primary-light);
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--heading);
            text-align: center;
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-secondary);
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.6;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--white);
            border-bottom: 1px solid #E7E4DC;
            height: var(--header-h);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), #12A894);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(15, 138, 125, 0.25);
        }
        .logo-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--heading);
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-item {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 10px;
            transition: var(--transition);
            position: relative;
        }
        .nav-item:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-item.active {
            color: var(--primary);
            font-weight: 600;
            background: var(--primary-light);
        }
        .nav-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: #F5F2EC;
            border-radius: 20px;
            padding: 0 6px 0 16px;
            border: 2px solid transparent;
            transition: var(--transition);
            height: 40px;
        }
        .search-box:focus-within {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(15, 138, 125, 0.1);
        }
        .search-box input {
            border: none;
            background: transparent;
            font-size: 14px;
            color: var(--text);
            width: 160px;
            outline: none;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box button {
            background: var(--primary);
            color: #fff;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: var(--primary-dark);
        }
        .header-cta {
            height: 40px;
            padding: 0 20px;
            font-size: 14px;
            border-radius: 20px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            transition: var(--transition);
        }
        .header-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(15, 138, 125, 0.3);
        }
        .header-cta:active {
            transform: scale(0.97);
        }
        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .hamburger:hover {
            background: rgba(15, 138, 125, 0.15);
        }

        /* Mobile Menu */
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            background: var(--white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 12px 30px rgba(63, 52, 40, 0.08);
            z-index: 99;
            padding: 12px 0;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 28px;
            font-size: 16px;
            color: var(--text);
            font-weight: 500;
            border-left: 3px solid transparent;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
            background: var(--primary-light);
            border-left-color: var(--primary);
        }

        /* Hero */
        .hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 110px 0 130px;
            color: #fff;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 138, 125, 0.92) 0%, rgba(15, 138, 125, 0.72) 50%, rgba(15, 138, 125, 0.55) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }
        .hero h1 {
            font-size: 46px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero-sub {
            font-size: 17px;
            line-height: 1.7;
            margin-bottom: 32px;
            opacity: 0.92;
            max-width: 500px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .hero-actions .btn-outline-white {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.8);
            color: #fff;
        }
        .hero-actions .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }
        .hero-pills {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.22);
            border: 1px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(6px);
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .hero-pill i {
            font-size: 14px;
        }

        /* Featured Cards */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .featured-card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .featured-card .card-img {
            width: 100%;
            height: 180px;
            overflow: hidden;
            position: relative;
            aspect-ratio: 16 / 9;
        }
        .featured-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .featured-card:hover .card-img img {
            transform: scale(1.05);
        }
        .featured-card .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .featured-card .card-tag {
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .featured-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--heading);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .featured-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 20px;
            flex: 1;
        }
        .featured-card .card-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            transition: var(--transition);
            padding: 8px 0;
        }
        .featured-card .card-btn:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        /* Grid Cards */
        .grid-section {
            background: var(--white);
        }
        .grid-cards {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .grid-card {
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition);
        }
        .grid-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: transparent;
            background: var(--white);
        }
        .grid-card .grid-icon {
            width: 52px;
            height: 52px;
            margin: 0 auto 14px;
            background: var(--primary-light);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
        }
        .grid-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--heading);
            margin-bottom: 6px;
        }
        .grid-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
            margin-bottom: 14px;
        }
        .grid-card .grid-link {
            font-size: 13px;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }
        .grid-card .grid-link:hover {
            gap: 8px;
            color: var(--primary-dark);
        }

        /* Testimonial */
        .testimonial-section {
            background: #E3F2EF;
            padding: 80px 0;
        }
        .testimonial-carousel {
            position: relative;
            max-width: 720px;
            margin: 0 auto;
        }
        .testimonial-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 42px 48px;
            text-align: center;
            box-shadow: var(--shadow);
            display: none;
        }
        .testimonial-card.active {
            display: block;
        }
        .testimonial-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            margin: 0 auto 14px;
            background: linear-gradient(135deg, var(--primary), var(--gold));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            font-weight: 600;
        }
        .testimonial-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--heading);
            margin-bottom: 6px;
        }
        .testimonial-stars {
            color: var(--gold);
            font-size: 15px;
            margin-bottom: 16px;
            letter-spacing: 4px;
        }
        .testimonial-text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            font-style: italic;
        }
        .carousel-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--white);
            border: 1px solid var(--border);
            color: var(--primary);
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .carousel-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .carousel-btn.prev {
            left: -20px;
        }
        .carousel-btn.next {
            right: -20px;
        }

        /* Guarantee Bar */
        .guarantee-bar {
            border-bottom: 1px solid var(--border);
            padding: 40px 0;
            background: var(--white);
        }
        .guarantee-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 1;
            justify-content: center;
            position: relative;
        }
        .guarantee-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 30px;
            background: var(--border);
        }
        .guarantee-item i {
            font-size: 26px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .guarantee-item span {
            font-size: 15px;
            font-weight: 500;
            color: var(--heading);
            white-space: nowrap;
        }

        /* News / CMS */
        .news-section {
            padding: 80px 0;
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 36px;
            align-items: start;
        }
        .news-featured {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .news-featured:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .news-featured .news-img {
            width: 100%;
            height: 220px;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .news-featured .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-featured:hover .news-img img {
            transform: scale(1.04);
        }
        .news-featured .news-body {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-featured .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-featured h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--heading);
            line-height: 1.4;
            margin-bottom: 10px;
        }
        .news-featured h3 a {
            color: inherit;
        }
        .news-featured h3 a:hover {
            color: var(--primary);
        }
        .news-featured .news-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-featured .news-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
        }
        .news-featured .news-link:hover {
            gap: 10px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 4px;
            border-bottom: 1px solid #EFECE6;
            transition: var(--transition);
        }
        .news-item:hover {
            background: #FCFAF5;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: 10px;
        }
        .news-item-main {
            flex: 1;
            min-width: 0;
        }
        .news-item-main .news-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }
        .news-item-main h4 {
            font-size: 15px;
            font-weight: 500;
            color: var(--heading);
            line-height: 1.4;
            margin-bottom: 4px;
        }
        .news-item-main h4 a {
            color: inherit;
        }
        .news-item-main h4 a:hover {
            color: var(--primary);
        }
        .news-item-main p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-arrow {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            transition: var(--transition);
            margin-top: 6px;
        }
        .news-item:hover .news-arrow {
            background: var(--primary);
            color: #fff;
        }
        .news-empty {
            text-align: center;
            padding: 48px 24px;
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            background: #FCFAF5;
            color: var(--text-secondary);
            font-size: 15px;
        }
        .news-empty i {
            font-size: 36px;
            color: var(--text-muted);
            display: block;
            margin-bottom: 12px;
        }

        /* CTA */
        .cta-section {
            padding: 0;
        }
        .cta-banner {
            background: linear-gradient(120deg, var(--primary) 0%, #12A894 60%, var(--gold) 140%);
            border-radius: 20px;
            padding: 72px 56px;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin: 0 0 80px;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: 10%;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }
        .cta-banner h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            z-index: 2;
        }
        .cta-banner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
        }
        .cta-banner .btn-accent {
            position: relative;
            z-index: 2;
            background: #fff;
            color: var(--primary);
            padding: 14px 42px;
            font-size: 17px;
            border-radius: 30px;
            font-weight: 600;
        }
        .cta-banner .btn-accent:hover {
            background: var(--accent);
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: var(--heading);
            color: #B8C6C2;
            padding: 64px 0 0;
            font-size: 14px;
        }
        .footer-cols {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--primary);
        }
        .footer-col p {
            line-height: 1.7;
            color: #99A8A4;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: #99A8A4;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo .logo-icon {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: #7A8F8A;
        }

        /* Responsive */
        @media (max-width: 1199px) {
            .search-box input {
                width: 110px;
            }
            .grid-cards {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-cols {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 991px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero h1 {
                font-size: 36px;
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .guarantee-inner {
                flex-wrap: wrap;
                gap: 16px;
            }
            .guarantee-item {
                flex: 0 0 45%;
                justify-content: flex-start;
                padding: 0 10px;
            }
            .guarantee-item:not(:last-child)::after {
                display: none;
            }
        }
        @media (max-width: 767px) {
            .section {
                padding: 56px 0;
            }
            .header-cta {
                display: none;
            }
            .search-box {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero {
                padding: 80px 0 90px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .hero-pills {
                flex-direction: column;
                align-items: flex-start;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .grid-cards {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .testimonial-card {
                padding: 32px 20px;
            }
            .carousel-btn.prev {
                left: 0;
            }
            .carousel-btn.next {
                right: 0;
            }
            .cta-banner {
                padding: 48px 24px;
                margin-bottom: 56px;
            }
            .cta-banner h2 {
                font-size: 26px;
            }
            .footer-cols {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .guarantee-inner {
                flex-direction: column;
                gap: 24px;
            }
            .guarantee-item {
                flex: 0 0 auto;
                width: 100%;
            }
        }
        @media (max-width: 520px) {
            .grid-cards {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
            }
        }

/* roulang page: article */
:root {
    --primary: #0F8A7D;
    --primary-dark: #0D786D;
    --primary-light: #EAF5F2;
    --accent: #F39C6D;
    --accent-dark: #E88A5E;
    --gold: #E8C07A;
    --bg: #FAF8F2;
    --white: #FFFFFF;
    --text: #2F2A26;
    --text-secondary: #7A6F64;
    --text-muted: #A79C91;
    --text-heading: #1F3531;
    --border: #E7E4DC;
    --card-border: #E9E4DC;
    --shadow: 0 8px 20px rgba(63, 52, 40, 0.06);
    --shadow-hover: 0 12px 28px rgba(63, 52, 40, 0.12);
    --radius: 14px;
    --radius-sm: 10px;
    --radius-pill: 999px;
    --trans: all .25s ease;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

a { color: var(--primary); text-decoration: none; transition: var(--trans); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 14px; }

/* ===== Header / Nav ===== */
.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 12px rgba(63, 52, 40, 0.04);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 17px;
    box-shadow: 0 4px 12px rgba(15, 138, 125, 0.25);
}

.brand span:last-child {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-heading);
    letter-spacing: 0.2px;
    white-space: nowrap;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-item {
    padding: 9px 16px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--trans);
    white-space: nowrap;
}

.nav-item:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-item.active {
    color: var(--primary);
    background: var(--primary-light);
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg);
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    padding: 0 16px;
    height: 40px;
    width: 220px;
    transition: var(--trans);
}

.search-box:focus-within {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(15, 138, 125, 0.1);
}

.search-box input {
    border: none;
    outline: none;
    background: transparent;
    flex: 1;
    font-size: 14px;
    color: var(--text);
}

.search-box i {
    color: var(--text-muted);
    font-size: 14px;
    margin-left: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    padding: 12px 26px;
    transition: var(--trans);
    cursor: pointer;
    text-align: center;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(15, 138, 125, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.15);
}

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

.btn-outline:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.btn-accent {
    background: var(--accent);
    color: #fff;
    height: 54px;
    font-size: 18px;
    padding: 0 42px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(243, 156, 109, 0.35);
}

.btn-accent:hover {
    background: var(--accent-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(243, 156, 109, 0.4);
}

.btn-sm { padding: 9px 20px; font-size: 14px; }

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    background: var(--bg);
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-heading);
}

/* ===== Breadcrumb ===== */
.breadcrumb-wrap {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    font-size: 14px;
    color: var(--text-muted);
    gap: 6px;
    line-height: 1.6;
}

.breadcrumb a {
    color: var(--text-secondary);
    font-weight: 400;
}

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

.breadcrumb a::after {
    content: '›';
    margin-left: 6px;
    color: var(--text-muted);
}

.breadcrumb span { color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 340px; }

/* ===== Article Main ===== */
.article-main {
    padding: 56px 0 72px;
}

.article-card {
    background: var(--white);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 48px 56px;
    max-width: 860px;
    margin: 0 auto 56px;
}

.post-title {
    font-size: 34px;
    font-weight: 700;
    line-height: 1.35;
    color: var(--text-heading);
    margin-bottom: 18px;
    letter-spacing: 0.5px;
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
    font-size: 14px;
    color: var(--text-muted);
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.meta-item i { color: var(--primary); font-size: 13px; }

.article-body {
    font-size: 17px;
    line-height: 1.85;
    color: var(--text);
}

.article-body > * { margin-bottom: 20px; }

.article-body h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-heading);
    margin-top: 36px;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.article-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-heading);
    margin-top: 28px;
    margin-bottom: 12px;
}

.article-body p { line-height: 1.85; }

.article-body ul, .article-body ol { padding-left: 22px; }

.article-body li { margin-bottom: 8px; line-height: 1.7; }

.article-body blockquote {
    border-left: 4px solid var(--primary);
    background: var(--primary-light);
    padding: 16px 22px;
    border-radius: 0 12px 12px 0;
    margin: 24px 0;
    color: var(--text-secondary);
    font-style: normal;
}

.article-body img {
    max-width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin: 24px auto;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
    margin: 24px 0;
    border-radius: 10px;
    overflow: hidden;
}

.article-body table th {
    background: var(--primary-light);
    font-weight: 600;
    color: var(--text-heading);
    text-align: left;
    padding: 12px 16px;
    border: 1px solid var(--border);
}

.article-body table td {
    padding: 12px 16px;
    border: 1px solid var(--border);
}

.article-body table tr:nth-child(even) td { background: var(--bg); }

.article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--primary-dark); }

.article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.article-tags .label {
    font-size: 14px;
    color: var(--text-muted);
    margin-right: 4px;
}

.tag {
    display: inline-block;
    padding: 5px 14px;
    background: var(--primary-light);
    color: var(--primary-dark);
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 500;
    transition: var(--trans);
}

.tag:hover { background: var(--primary); color: #fff; }

.share-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px dashed var(--border);
}

.share-bar span {
    font-size: 14px;
    color: var(--text-muted);
    margin-right: 4px;
}

.share-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--bg);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: var(--trans);
}

.share-btn:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(15, 138, 125, 0.25);
}

.article-not-found {
    text-align: center;
    padding: 60px 20px;
}

.article-not-found i {
    font-size: 48px;
    color: var(--text-muted);
    margin-bottom: 16px;
    display: block;
}

.article-not-found p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* ===== Related ===== */
.related-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 72px;
}

.section-title-wrap {
    text-align: left;
    margin-bottom: 32px;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-heading);
    position: relative;
    padding-left: 18px;
}

.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 5px;
    border-radius: 4px;
    background: var(--primary);
}

.section-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 6px;
}

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

.related-card {
    background: var(--white);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--trans);
    display: block;
    box-shadow: 0 2px 8px rgba(63, 52, 40, 0.03);
}

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

.cover-wrap {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--primary-light);
}

.cover-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}

.related-card:hover .cover-wrap img {
    transform: scale(1.05);
}

.cover-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(31, 53, 49, 0.25));
    pointer-events: none;
}

.card-category {
    position: absolute;
    left: 14px;
    bottom: 14px;
    z-index: 2;
    background: rgba(255, 255, 255, 0.92);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 8px rgba(63, 52, 40, 0.1);
}

.related-card-body {
    padding: 18px 20px 20px;
}

.related-card-body h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-heading);
    margin-bottom: 8px;
    line-height: 1.4;
    transition: var(--trans);
}

.related-card:hover .related-card-body h3 {
    color: var(--primary);
}

.related-card-body p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 72px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.07);
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -90px;
    left: 10%;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(232, 192, 122, 0.12);
}

.cta-inner {
    text-align: center;
    position: relative;
    z-index: 2;
}

.cta-inner h2 {
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.cta-inner p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--text-heading);
    color: rgba(255, 255, 255, 0.75);
    padding: 64px 0 0;
}

.footer-cols {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.footer-logo .logo-icon {
    width: 36px;
    height: 36px;
    font-size: 15px;
    background: var(--primary);
    border-radius: 10px;
}

.footer-logo span:last-child {
    font-size: 17px;
    font-weight: 700;
    color: #fff;
}

.footer-col p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 6px;
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 26px;
    height: 3px;
    border-radius: 2px;
    background: var(--primary);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    transition: var(--trans);
}

.footer-col ul a:hover {
    color: #fff;
    padding-left: 4px;
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}

/* ===== Back to top ===== */
.back-top {
    position: fixed;
    right: 30px;
    bottom: 30px;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    box-shadow: 0 6px 20px rgba(15, 138, 125, 0.35);
    opacity: 0;
    visibility: hidden;
    transition: var(--trans);
    z-index: 99;
}

.back-top.show {
    opacity: 1;
    visibility: visible;
}

.back-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ===== Responsive ===== */
@media (max-width: 1199px) {
    .search-box { width: 180px; }
    .related-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 991px) {
    .main-nav { display: none; }
    .nav-toggle { display: inline-flex; }
    .search-box { display: none; }
    .header-inner { height: 64px; }
    .article-card { padding: 36px 32px; }
    .post-title { font-size: 28px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-cols { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 767px) {
    .container { padding-left: 16px; padding-right: 16px; }
    .brand span:last-child { font-size: 16px; }
    .header-actions .btn-sm { padding: 8px 14px; font-size: 13px; }
    .article-main { padding: 32px 0 48px; }
    .article-card { padding: 24px 18px; border-radius: 14px; }
    .post-title { font-size: 23px; line-height: 1.4; }
    .post-meta { gap: 12px; font-size: 13px; }
    .article-body { font-size: 16px; }
    .article-body h2 { font-size: 22px; }
    .article-body h3 { font-size: 18px; }
    .related-grid { grid-template-columns: 1fr; gap: 16px; }
    .section-title { font-size: 24px; }
    .cta-section { padding: 48px 0; }
    .cta-inner h2 { font-size: 24px; }
    .cta-inner p { font-size: 14px; }
    .btn-accent { height: 48px; font-size: 16px; padding: 0 32px; }
    .footer-cols { grid-template-columns: 1fr; gap: 28px; }
    .breadcrumb span { max-width: 200px; }
}

@media (max-width: 419px) {
    .brand span:last-child { font-size: 14px; }
    .logo-icon { width: 34px; height: 34px; border-radius: 10px; font-size: 14px; }
    .article-card { padding: 20px 14px; }
    .post-title { font-size: 20px; }
}

/* roulang page: category1 */
:root {
            --primary: #0F8A7D;
            --primary-dark: #0D786D;
            --primary-light: #E3F2EF;
            --accent: #F39C6D;
            --accent-dark: #E88A5E;
            --gold: #E8C07A;
            --bg: #FAF8F2;
            --white: #FFFFFF;
            --text: #2F2A26;
            --text-light: #7A6F64;
            --text-faint: #A79C91;
            --border: #E9E4DC;
            --footer-bg: #1F3531;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 8px 20px rgba(63, 52, 40, .06);
            --shadow-hover: 0 12px 28px rgba(63, 52, 40, .12);
            --container: 1200px;
            --header-h: 72px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

        ul {
            list-style: none;
        }

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

        :focus-visible {
            outline: 3px solid rgba(15, 138, 125, .4);
            outline-offset: 2px;
        }

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

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-h);
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
        }

        .header-inner {
            max-width: calc(var(--container) + 48px);
            margin: 0 auto;
            height: var(--header-h);
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 700;
            color: #1F3531;
            white-space: nowrap;
            transition: opacity .2s;
        }

        .logo:hover {
            opacity: .85;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            gap: 4px;
            margin-left: auto;
        }

        .nav-item {
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: all .2s;
        }

        .nav-item:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .nav-item.active {
            background: var(--primary);
            color: #fff;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: #F5F3EE;
            border-radius: 20px;
            padding: 0 14px;
            height: 40px;
            width: 210px;
            border: 1px solid transparent;
            transition: border-color .2s, background .2s;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            background: #fff;
        }

        .search-box i {
            color: var(--text-faint);
            font-size: 14px;
            margin-right: 8px;
        }

        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            width: 100%;
            color: var(--text);
        }

        .search-box input::placeholder {
            color: var(--text-faint);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            font-size: 22px;
            color: var(--text);
            align-items: center;
            justify-content: center;
            transition: all .2s;
        }

        .nav-toggle:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.2;
            transition: all .2s ease;
            cursor: pointer;
            border: none;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow);
        }

        .btn-primary:active {
            box-shadow: inset 0 2px 6px rgba(0, 0, 0, .2);
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-light);
        }

        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, .7);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .15);
        }

        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }

        .btn-cta {
            background: var(--accent);
            color: #fff;
            font-size: 18px;
            height: 54px;
            padding: 0 42px;
            border-radius: 12px;
        }

        .btn-cta:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(243, 156, 109, .35);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            margin-top: var(--header-h);
            padding: 140px 0 80px;
            color: #fff;
            overflow: hidden;
            background: var(--primary);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 138, 125, .88) 0%, rgba(15, 138, 125, .70) 50%, rgba(15, 138, 125, .40) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, .18);
            border: 1px solid rgba(255, 255, 255, .35);
            border-radius: 20px;
            padding: 6px 18px;
            font-size: 13px;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }

        .hero h1 {
            font-size: 46px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 16px;
            color: #fff;
        }

        .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, .9);
            margin-bottom: 30px;
            letter-spacing: .02em;
        }

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

        .hero-actions .btn-outline,
        .hero-actions .btn-outline-light {
            border-color: rgba(255, 255, 255, .8);
            color: #fff;
        }

        .hero-actions .btn-outline:hover,
        .hero-actions .btn-outline-light:hover {
            background: rgba(255, 255, 255, .15);
            border-color: #fff;
        }

        .hero-tags {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .hero-tags span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(255, 255, 255, .15);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: 20px;
            padding: 6px 16px;
            font-size: 13px;
            line-height: 1.5;
        }

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

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 20px;
            padding: 4px 16px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: #1F3531;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-head p {
            color: var(--text-light);
            font-size: 16px;
        }

        /* ===== Split ===== */
        .split-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .split-text .section-tag {
            margin-bottom: 16px;
        }

        .split-text h2 {
            font-size: 30px;
            font-weight: 700;
            color: #1F3531;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .split-text p {
            color: var(--text-light);
            font-size: 16px;
            margin-bottom: 16px;
        }

        .check-list {
            margin: 20px 0;
        }

        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            color: var(--text);
            font-size: 15px;
        }

        .check-list i {
            color: var(--primary);
            font-size: 16px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .split-image {
            overflow: hidden;
            border-radius: 16px;
            box-shadow: var(--shadow);
        }

        .split-image img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            transition: transform .4s ease;
        }

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

        .split-grid.reverse .split-image {
            order: -1;
        }

        /* ===== Steps ===== */
        .steps-section {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .step-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 32px;
            border: 1px solid var(--border);
            transition: all .25s ease;
            position: relative;
        }

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

        .step-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            opacity: .2;
            line-height: 1;
            margin-bottom: 16px;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: #1F3531;
            margin-bottom: 10px;
        }

        .step-card p {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.65;
        }

        /* ===== Features ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            text-align: center;
            transition: all .25s ease;
        }

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

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin: 0 auto 18px;
        }

        .feature-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: #1F3531;
            margin-bottom: 10px;
        }

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

        /* ===== Scenario ===== */
        .scenario-section {
            background: var(--primary-light);
            border-top: 1px solid rgba(15, 138, 125, .1);
            border-bottom: 1px solid rgba(15, 138, 125, .1);
        }

        /* ===== FAQ ===== */
        .faq-container {
            max-width: 820px;
        }

        .faq-list {
            border-top: 1px solid var(--border);
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: background .2s;
        }

        .faq-item.open {
            background: rgba(15, 138, 125, .03);
        }

        .faq-question {
            width: 100%;
            padding: 22px 8px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            text-align: left;
            transition: color .2s;
        }

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

        .faq-question i {
            color: var(--text-faint);
            font-size: 14px;
            transition: transform .3s, color .2s;
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-item.open .faq-question {
            color: var(--primary);
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }

        .faq-answer p {
            padding: 0 8px 22px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.75;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 40px 0 80px;
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 24px;
            text-align: center;
            padding: 70px 48px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -15%;
            width: 320px;
            height: 320px;
            background: rgba(255, 255, 255, .07);
            border-radius: 50%;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -50%;
            left: -10%;
            width: 220px;
            height: 220px;
            background: rgba(255, 255, 255, .05);
            border-radius: 50%;
        }

        .cta-box h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-box p {
            color: rgba(255, 255, 255, .85);
            font-size: 16px;
            margin-bottom: 32px;
            position: relative;
            z-index: 1;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--footer-bg);
            color: #B8C4C1;
            padding: 60px 0 0;
        }

        .footer-cols {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-logo .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 14px;
            border-radius: 10px;
            background: var(--primary);
        }

        .footer-col p {
            font-size: 14px;
            line-height: 1.65;
            color: #9FB0AD;
            max-width: 300px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            margin-bottom: 16px;
            font-weight: 600;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: #B8C4C1;
            transition: color .2s;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: #8CA09D;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }

            .main-nav.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-hover);
                padding: 16px 24px;
                gap: 4px;
                align-items: flex-start;
            }

            .main-nav.open .nav-item {
                width: 100%;
                border-radius: 10px;
            }

            .nav-toggle {
                display: flex;
            }

            .header-actions .search-box {
                display: none;
            }

            .split-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .steps-grid,
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }

            .footer-cols {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767px) {
            .section {
                padding: 48px 0;
            }

            .hero {
                padding: 110px 0 60px;
            }

            .hero h1 {
                font-size: 34px;
            }

            .hero-sub {
                font-size: 16px;
                margin-bottom: 24px;
            }

            .hero-tags {
                margin-top: 28px;
                gap: 8px;
            }

            .hero-tags span {
                padding: 5px 12px;
                font-size: 12px;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .split-text h2,
            .cta-box h2 {
                font-size: 24px;
            }

            .split-grid {
                gap: 28px;
            }

            .split-grid.reverse .split-image {
                order: 0;
            }

            .steps-grid,
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .step-card,
            .feature-card {
                padding: 24px 20px;
            }

            .cta-section {
                padding: 24px 0 48px;
            }

            .cta-box {
                padding: 44px 24px;
                border-radius: 18px;
            }

            .cta-box h2 {
                font-size: 24px;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .btn-cta {
                font-size: 17px;
                height: 50px;
                padding: 0 28px;
            }

            .header-inner {
                padding: 0 16px;
            }

            .logo {
                font-size: 16px;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 14px;
                border-radius: 10px;
            }

            .header-actions .btn {
                padding: 10px 16px;
                font-size: 14px;
            }

            .footer-cols {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 28px;
            }

            .footer-col p {
                max-width: 100%;
            }

            .hero-actions .btn {
                width: 100%;
                max-width: 320px;
            }
        }

        @media (max-width: 420px) {
            .hero h1 {
                font-size: 29px;
            }

            .hero-sub {
                font-size: 15px;
            }

            .section-head h2 {
                font-size: 23px;
            }

            .btn-lg {
                padding: 12px 20px;
                font-size: 15px;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #0F8A7D;
  --primary-dark: #0D786D;
  --primary-light: #E3F2EF;
  --secondary: #F39C6D;
  --secondary-dark: #E88A5E;
  --gold: #E8C07A;
  --bg-warm: #FAF8F2;
  --bg-white: #FFFFFF;
  --bg-mint: #EAF5F2;
  --text-main: #2F2A26;
  --text-sub: #7A6F64;
  --text-muted: #A79C91;
  --text-title: #1F3531;
  --border: #E9E4DC;
  --border-light: #E7E4DC;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 8px 20px rgba(63, 52, 40, 0.06);
  --shadow-hover: 0 12px 28px rgba(63, 52, 40, 0.12);
  --container: 1200px;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-warm);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

ul, ol {
  list-style: none;
}

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

/* Header Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border-light);
  box-shadow: 0 1px 8px rgba(31, 53, 49, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
  box-shadow: 0 4px 10px rgba(15, 138, 125, 0.25);
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-title);
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-item {
  display: block;
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  border-radius: 30px;
  transition: color var(--transition), background var(--transition);
}

.nav-item:hover,
.nav-item.active {
  color: var(--primary);
  background: var(--primary-light);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.search-box {
  display: flex;
  align-items: center;
  background: #F4F1EA;
  border-radius: 20px;
  padding: 0 6px 0 14px;
  height: 42px;
  border: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}

.search-box:focus-within {
  border-color: var(--primary);
  background: #fff;
}

.search-box input {
  width: 150px;
  background: transparent;
  border: none;
  font-size: 14px;
  color: var(--text-main);
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box i {
  color: var(--text-muted);
  font-size: 13px;
  padding-right: 8px;
}

.search-btn {
  background: var(--primary);
  color: #fff;
  border-radius: 16px;
  height: 32px;
  padding: 0 12px;
  font-size: 13px;
  cursor: pointer;
  transition: background var(--transition);
}

.search-btn:hover {
  background: var(--primary-dark);
}

.header-cta {
  background: var(--primary);
  color: #fff;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.header-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(15, 138, 125, 0.30);
}

.header-cta:active {
  transform: translateY(0);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.12);
}

.burger {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  transition: background var(--transition);
}

.burger:hover {
  background: #DDEEEA;
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  background: #fff;
  border-top: 1px solid var(--border-light);
  padding: 8px 16px 16px;
}

.mobile-nav .nav-item {
  display: block;
  padding: 12px 16px;
  margin: 4px 0;
  border-radius: 10px;
}

/* Hero */
.hero-guide {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 100px 0;
}

.hero-guide::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(15, 138, 125, 0.92) 0%, rgba(15, 138, 125, 0.78) 45%, rgba(15, 138, 125, 0.55) 100%);
}

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

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  font-size: 13px;
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 22px;
  backdrop-filter: blur(6px);
}

.hero-pill i {
  font-size: 12px;
}

.hero-guide h1 {
  font-size: 46px;
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.hero-guide .hero-sub {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.92);
  max-width: 620px;
  margin-bottom: 34px;
  line-height: 1.7;
}

.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: 2px solid var(--primary);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(15, 138, 125, 0.30);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.12);
}

.btn-outline-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  border: 2px solid rgba(255, 255, 255, 0.7);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: #fff;
}

.hero-capsules {
  display: flex;
  gap: 12px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.hero-capsule {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff;
  font-size: 13px;
  padding: 7px 16px;
  border-radius: 30px;
  backdrop-filter: blur(4px);
}

.hero-capsule i {
  color: var(--gold);
  font-size: 12px;
}

/* Section wrapper */
.section {
  padding: 88px 0;
}

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

.section-white {
  background: #fff;
}

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  color: var(--primary);
  background: var(--primary-light);
  padding: 5px 14px;
  border-radius: 30px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-title);
  line-height: 1.35;
  letter-spacing: -0.4px;
  margin-bottom: 14px;
}

.section-head p {
  font-size: 16px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* Steps / Timeline */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}

.step-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.step-num {
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 18px;
  box-shadow: 0 4px 12px rgba(15, 138, 125, 0.30);
}

.step-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-title);
  margin-bottom: 8px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.65;
}

/* Feature split */
.feature-block {
  display: flex;
  align-items: center;
  gap: 64px;
  margin-bottom: 72px;
}

.feature-block:last-child {
  margin-bottom: 0;
}

.feature-block.reverse {
  flex-direction: row-reverse;
}

.feature-media {
  flex: 1;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow);
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-content {
  flex: 1;
}

.feature-content .feature-tag {
  display: inline-block;
  font-size: 13px;
  color: var(--secondary-dark);
  background: rgba(243, 156, 109, 0.12);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
  font-weight: 600;
}

.feature-content h3 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 14px;
  line-height: 1.4;
}

.feature-content p {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 18px;
}

.feature-list {
  margin-top: 14px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-main);
  margin-bottom: 10px;
}

.feature-list li i {
  color: var(--primary);
  margin-top: 4px;
  font-size: 12px;
}

/* Scene cards */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.scene-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.scene-icon {
  width: 58px;
  height: 58px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin: 0 auto 18px;
}

.scene-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-title);
  margin-bottom: 8px;
}

.scene-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
}

/* Safety strip */
.safety-strip {
  background: var(--text-title);
  border-radius: 16px;
  padding: 44px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.safety-strip h3 {
  color: #fff;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.safety-strip p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
}

.safety-items {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

.safety-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 15px;
}

.safety-item i {
  color: var(--gold);
  font-size: 18px;
}

/* FAQ */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow);
}

.faq-item.active {
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(15, 138, 125, 0.08);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: transparent;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-title);
  text-align: left;
  gap: 16px;
  transition: background var(--transition);
}

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

.faq-question .faq-icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: transform var(--transition), background var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  padding: 0 24px 22px;
  max-height: 400px;
}

/* CTA */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, #0B6B62 100%);
  padding: 84px 0;
  text-align: center;
}

.cta-section h2 {
  color: #fff;
  font-size: 34px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.4px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 17px;
  margin-bottom: 36px;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--secondary);
  color: #fff;
  height: 54px;
  padding: 0 38px;
  border-radius: 12px;
  font-size: 18px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
}

.btn-cta:hover {
  background: var(--secondary-dark);
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.24);
}

.btn-cta:active {
  transform: translateY(0);
  box-shadow: inset 0 3px 8px rgba(0, 0, 0, 0.16);
}

/* Footer */
.site-footer {
  background: var(--text-title);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 68px;
}

.footer-cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-logo .logo-icon {
  width: 34px;
  height: 34px;
  font-size: 15px;
}

.footer-logo span {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
}

.footer-col p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.55);
  max-width: 300px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

.footer-col ul a:hover {
  color: var(--gold);
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* Responsive */
@media (max-width: 1199px) {
  .header-inner {
    gap: 16px;
  }

  .search-box {
    display: none;
  }

  .nav-item {
    padding: 8px 14px;
    font-size: 14px;
  }
}

@media (max-width: 1023px) {
  .main-nav {
    display: none;
  }

  .burger {
    display: flex;
  }

  .mobile-nav.open {
    display: block;
  }

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

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

  .feature-block {
    flex-direction: column;
    gap: 36px;
  }

  .feature-block.reverse {
    flex-direction: column;
  }

  .footer-cols {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  .header-inner {
    height: 64px;
  }

  .logo-text {
    font-size: 17px;
  }

  .header-cta {
    padding: 9px 18px;
    font-size: 14px;
  }

  .hero-guide {
    min-height: auto;
    padding: 72px 0;
  }

  .hero-guide h1 {
    font-size: 32px;
  }

  .hero-guide .hero-sub {
    font-size: 16px;
  }

  .section {
    padding: 56px 0;
  }

  .section-head h2 {
    font-size: 26px;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .scene-grid {
    grid-template-columns: 1fr;
  }

  .safety-strip {
    padding: 32px 24px;
  }

  .cta-section h2 {
    font-size: 26px;
  }

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

  .hero-btns {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-primary,
  .btn-outline-light,
  .btn-cta {
    justify-content: center;
    width: 100%;
  }

  .feature-content h3 {
    font-size: 22px;
  }

  .hero-capsules {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .header-cta {
    display: none;
  }

  .logo-text {
    font-size: 16px;
  }

  .hero-guide h1 {
    font-size: 28px;
  }

  .scene-grid {
    grid-template-columns: 1fr;
  }

  .safety-items {
    flex-direction: column;
    gap: 14px;
  }

  .faq-question {
    font-size: 15px;
    padding: 18px 20px;
  }

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

/* roulang page: category3 */
:root {
    --primary: #0F8A7D;
    --primary-dark: #0D786D;
    --primary-light: #EAF5F2;
    --accent: #F39C6D;
    --accent-dark: #E88A5E;
    --gold: #E8C07A;
    --bg: #FAF8F2;
    --white: #FFFFFF;
    --title: #1F3531;
    --text: #2F2A26;
    --text-sub: #7A6F64;
    --text-faint: #A79C91;
    --border: #E9E4DC;
    --border-soft: #E7E4DC;
    --shadow: 0 8px 20px rgba(63, 52, 40, 0.06);
    --shadow-hover: 0 12px 28px rgba(63, 52, 40, 0.12);
    --radius: 14px;
    --radius-sm: 10px;
    --radius-lg: 20px;
    --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

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

input {
    font-family: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
    transition: all 0.25s ease;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.15);
}

.btn-ghost {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.85);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #fff;
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

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

.btn-accent:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-outline-light {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.9);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
}

.btn-lg {
    padding: 15px 36px;
    font-size: 17px;
    border-radius: 12px;
    min-height: 54px;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 14px;
    min-height: 40px;
}

.btn-header {
    padding: 9px 22px;
    font-size: 14px;
    min-height: 42px;
}

/* ===== 顶部导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--white);
    border-bottom: 1px solid var(--border-soft);
    box-shadow: 0 1px 6px rgba(31, 53, 49, 0.04);
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 24px;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 18px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--title);
    letter-spacing: 0.02em;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0 auto;
}

.nav-item {
    padding: 10px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-sub);
    border-radius: 8px;
    transition: all 0.2s ease;
    position: relative;
}

.nav-item:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-item.active {
    color: var(--primary);
    font-weight: 600;
    background: var(--primary-light);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}

.search-box {
    display: flex;
    align-items: center;
    background: #F2F0EA;
    border: 1px solid transparent;
    border-radius: 20px;
    padding: 0 14px;
    height: 42px;
    width: 210px;
    transition: all 0.25s ease;
}

.search-box:focus-within {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(15, 138, 125, 0.1);
}

.search-box-icon {
    color: var(--text-faint);
    font-size: 14px;
    margin-right: 8px;
}

.search-box input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 14px;
    width: 100%;
    color: var(--text);
}

.search-box input::placeholder {
    color: var(--text-faint);
}

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 18px;
    align-items: center;
    justify-content: center;
}

.nav-toggle:hover {
    background: rgba(15, 138, 125, 0.18);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    overflow: hidden;
    padding: 110px 0 100px;
    background: var(--title);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 138, 125, 0.92) 0%, rgba(31, 53, 49, 0.88) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 860px;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.28);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.04em;
    margin-bottom: 24px;
    backdrop-filter: blur(4px);
}

.hero-content h1 {
    font-size: 44px;
    line-height: 1.3;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: 0.01em;
}

.hero-sub {
    font-size: 18px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.92);
    max-width: 640px;
    margin: 0 auto 36px;
}

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

.hero-capsules {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin-top: 44px;
    flex-wrap: wrap;
}

.capsule {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.95);
    font-size: 13px;
    backdrop-filter: blur(4px);
}

.capsule i {
    font-size: 14px;
    opacity: 0.9;
}

/* ===== 区块通用 ===== */
.section-head {
    text-align: center;
    margin-bottom: 48px;
}

.section-head h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--title);
    margin-bottom: 10px;
}

.section-head p {
    font-size: 16px;
    color: var(--text-sub);
}

.section-head.light h2 {
    color: #fff;
}

.section-head.light p {
    color: rgba(255, 255, 255, 0.8);
}

/* ===== 问题覆盖概览 ===== */
.overview-section {
    padding: 90px 0;
    background: var(--white);
}

.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.overview-media {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    aspect-ratio: 4 / 3;
    background: var(--primary-light);
}

.overview-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.overview-list {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.overview-item {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    padding: 18px 20px;
    border-radius: var(--radius);
    background: var(--bg);
    border-left: 3px solid var(--primary);
    transition: all 0.25s ease;
}

.overview-item:hover {
    box-shadow: var(--shadow);
    transform: translateX(4px);
}

.overview-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 18px;
}

.overview-text h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--title);
    margin-bottom: 4px;
}

.overview-text p {
    font-size: 14px;
    line-height: 1.65;
    color: var(--text-sub);
}

/* ===== 适用场景 ===== */
.scene-section {
    padding: 90px 0;
    background: var(--bg);
}

.scene-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
}

.scene-card:last-child {
    margin-bottom: 0;
}

.scene-card.reverse .scene-image {
    order: 2;
}

.scene-card.reverse .scene-body {
    order: 1;
}

.scene-image {
    aspect-ratio: 16/10;
    overflow: hidden;
    background: var(--primary-light);
}

.scene-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scene-body {
    padding: 40px;
}

.scene-num {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.08em;
    display: block;
    margin-bottom: 16px;
}

.scene-body h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--title);
    margin-bottom: 14px;
    line-height: 1.4;
}

.scene-body p {
    font-size: 15px;
    line-height: 1.75;
    color: var(--text-sub);
    margin-bottom: 24px;
}

/* ===== 流程时间轴 ===== */
.flow-section {
    padding: 90px 0;
    background: var(--primary-light);
}

.flow-steps {
    max-width: 760px;
    margin: 0 auto;
    position: relative;
    padding-left: 0;
}

.flow-steps::before {
    content: "";
    position: absolute;
    top: 10px;
    bottom: 10px;
    left: 31px;
    width: 2px;
    background: rgba(15, 138, 125, 0.25);
}

.flow-step {
    position: relative;
    padding: 0 0 36px 84px;
}

.flow-step:last-child {
    padding-bottom: 0;
}

.flow-dot {
    position: absolute;
    left: 12px;
    top: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 0 6px rgba(15, 138, 125, 0.15);
    z-index: 1;
}

.flow-content {
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 24px 28px;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
}

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

.flow-content h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--title);
    margin-bottom: 6px;
}

.flow-content p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.65;
}

/* ===== FAQ 手风琴 ===== */
.faq-section {
    padding: 90px 0;
    background: var(--title);
}

.faq-container {
    max-width: 860px;
}

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

.faq-item {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    overflow: hidden;
    transition: background 0.25s ease, border-color 0.25s ease;
}

.faq-item.open {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.18);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
    padding: 22px 26px;
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    text-align: left;
}

.faq-icon {
    font-size: 14px;
    color: var(--gold);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.open .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.faq-answer-inner {
    padding: 0 26px 24px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    line-height: 1.75;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 16px;
}

/* ===== CTA ===== */
.cta-section {
    padding: 90px 0;
    background: var(--bg);
}

.cta-box {
    background: linear-gradient(135deg, var(--accent) 0%, #E8795B 100%);
    border-radius: var(--radius-lg);
    padding: 72px 48px;
    text-align: center;
    box-shadow: 0 16px 40px rgba(243, 156, 109, 0.25);
}

.cta-box h2 {
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.cta-box p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.92);
    margin-bottom: 32px;
}

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

/* ===== 页脚 ===== */
.site-footer {
    background: var(--title);
    color: rgba(255, 255, 255, 0.72);
    padding: 64px 0 0;
}

.footer-cols {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo .logo-icon {
    background: rgba(255, 255, 255, 0.1);
    color: var(--gold);
}

.footer-logo span {
    font-size: 17px;
    font-weight: 700;
    color: #fff;
}

.footer-col p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.62);
    transition: color 0.2s ease;
}

.footer-col ul a:hover {
    color: var(--gold);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* ===== 响应式 ===== */
@media (max-width: 1199px) {
    .header-inner {
        gap: 16px;
    }

    .search-box {
        width: 170px;
    }

    .nav-item {
        padding: 10px 14px;
        font-size: 14px;
    }

    .overview-grid {
        gap: 36px;
    }
}

@media (max-width: 991px) {
    .site-header {
        position: sticky;
        top: 0;
    }

    .header-inner {
        flex-wrap: wrap;
        height: auto;
        padding-top: 14px;
        padding-bottom: 14px;
    }

    .logo {
        margin-right: auto;
    }

    .main-nav {
        order: 3;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        background: var(--white);
        padding: 12px 0;
        border-radius: 12px;
        display: none;
    }

    .main-nav.open {
        display: flex;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
    }

    .nav-item {
        font-size: 15px;
        padding: 12px 16px;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .search-box {
        display: none;
    }

    .search-box.open {
        display: flex;
        width: 100%;
        order: 4;
    }

    .hero {
        padding: 90px 0 80px;
    }

    .hero-content h1 {
        font-size: 34px;
    }

    .hero-sub {
        font-size: 16px;
    }

    .overview-grid,
    .scene-card {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .scene-card.reverse .scene-image {
        order: 1;
    }

    .scene-card.reverse .scene-body {
        order: 2;
    }

    .scene-image {
        aspect-ratio: 16/9;
    }

    .scene-body {
        padding: 28px 32px 36px;
    }

    .footer-cols {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }

    .overview-section,
    .scene-section,
    .flow-section,
    .faq-section,
    .cta-section {
        padding: 68px 0;
    }

    .section-head h2 {
        font-size: 27px;
    }
}

@media (max-width: 767px) {
    .container {
        padding: 0 20px;
    }

    .header-inner {
        gap: 10px;
    }

    .logo-text {
        font-size: 15px;
    }

    .btn-header {
        padding: 8px 16px;
        font-size: 13px;
    }

    .hero {
        padding: 70px 0 64px;
    }

    .hero-content h1 {
        font-size: 30px;
    }

    .hero-sub {
        font-size: 15px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }

    .hero-capsules {
        gap: 8px;
    }

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

    .section-head {
        margin-bottom: 36px;
    }

    .section-head h2 {
        font-size: 24px;
    }

    .section-head p {
        font-size: 14px;
    }

    .overview-section,
    .scene-section,
    .flow-section,
    .faq-section,
    .cta-section {
        padding: 52px 0;
    }

    .overview-grid {
        gap: 28px;
    }

    .overview-item {
        padding: 16px;
    }

    .overview-icon {
        width: 38px;
        height: 38px;
        font-size: 15px;
        border-radius: 10px;
    }

    .overview-text h3 {
        font-size: 16px;
    }

    .overview-text p {
        font-size: 13px;
    }

    .scene-body {
        padding: 24px 22px 28px;
    }

    .scene-num {
        margin-bottom: 10px;
    }

    .scene-body h3 {
        font-size: 20px;
    }

    .scene-body p {
        font-size: 14px;
    }

    .flow-step {
        padding-left: 68px;
    }

    .flow-steps::before {
        left: 23px;
    }

    .flow-dot {
        left: 4px;
        width: 38px;
        height: 38px;
        font-size: 15px;
    }

    .flow-content {
        padding: 18px 20px;
    }

    .flow-content h3 {
        font-size: 16px;
    }

    .faq-question {
        padding: 18px 20px;
        font-size: 15px;
    }

    .faq-answer-inner {
        padding: 14px 20px 20px;
        font-size: 14px;
    }

    .cta-box {
        padding: 48px 24px;
    }

    .cta-box h2 {
        font-size: 24px;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .cta-actions .btn {
        width: 100%;
        max-width: 280px;
    }

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

@media (max-width: 520px) {
    .logo-text {
        font-size: 14px;
    }

    .logo-icon {
        width: 34px;
        height: 34px;
        font-size: 16px;
    }

    .hero-content h1 {
        font-size: 26px;
    }

    .hero-sub {
        font-size: 14px;
    }

    .btn-lg {
        padding: 13px 24px;
        font-size: 16px;
        min-height: 50px;
    }

    .section-head h2 {
        font-size: 22px;
    }

    .footer-cols {
        grid-template-columns: 1fr;
    }
}