/* roulang page: index */
:root {
            --color-primary: #0F766E;
            --color-primary-dark: #0B5C4E;
            --color-primary-light: #14B8A6;
            --color-primary-lighter: #2DD4BF;
            --color-accent: #F59E0B;
            --color-accent-soft: rgba(245, 158, 11, 0.14);
            --bg-canvas: #F7F5F0;
            --radius-card: 1rem;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.10);
            --gradient-brand: linear-gradient(135deg, #0B5C4E 0%, #14B8A6 100%);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background-color: var(--bg-canvas);
            color: #1C2A26;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .section {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }

        @media (min-width: 768px) {
            .section {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            padding: .75rem 1.75rem;
            border-radius: 9999px;
            font-weight: 700;
            font-size: .9375rem;
            color: #fff;
            background: var(--gradient-brand);
            box-shadow: 0 4px 14px rgba(11, 92, 78, .3);
            transition: all .25s ease;
            min-height: 44px;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(11, 92, 78, .4);
            filter: brightness(1.05);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-primary:focus-visible,
        .btn-outline:focus-visible,
        a:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(20, 184, 166, .3);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            padding: .75rem 1.75rem;
            border-radius: 9999px;
            font-weight: 700;
            font-size: .9375rem;
            color: var(--color-primary);
            background: transparent;
            border: 1.5px solid var(--color-primary);
            transition: all .25s ease;
            min-height: 44px;
            cursor: pointer;
        }

        .btn-outline:hover {
            background: rgba(20, 184, 166, .08);
            border-color: var(--color-primary-light);
        }

        .btn-outline-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            padding: .75rem 1.75rem;
            border-radius: 9999px;
            font-weight: 700;
            font-size: .9375rem;
            color: #fff;
            background: rgba(255, 255, 255, .14);
            border: 1.5px solid rgba(255, 255, 255, .7);
            backdrop-filter: blur(4px);
            transition: all .25s ease;
            min-height: 44px;
            cursor: pointer;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, .24);
            border-color: #fff;
        }

        /* 卡片 */
        .service-card {
            background: #fff;
            border: 1px solid #E7E3DA;
            border-radius: 1rem;
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
        }

        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(20, 184, 166, .5);
        }

        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: .5rem;
            color: #1C2A26;
        }

        .service-card p {
            color: #5C6B66;
            font-size: .9375rem;
            line-height: 1.7;
        }

        .icon-circle {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
            background: rgba(20, 184, 166, .12);
            color: var(--color-primary);
        }

        .icon-circle.accent {
            background: rgba(245, 158, 11, .14);
            color: #D97706;
        }

        /* 服务矩阵网格 */
        .services-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        @media (min-width: 768px) {
            .services-grid {
                grid-template-columns: repeat(3, 1fr);
                grid-template-areas:
                    "a a b"
                    "c c d"
                    "e e d";
            }
        }

        .card-a {
            grid-area: a;
        }

        .card-b {
            grid-area: b;
        }

        .card-c {
            grid-area: c;
        }

        .card-d {
            grid-area: d;
            display: flex;
            flex-direction: column;
        }

        .card-e {
            grid-area: e;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        /* 导航 */
        .site-header {
            position: relative;
            z-index: 50;
            background: #fff;
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: .75rem 1.25rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        @media (min-width: 768px) {
            .header-top {
                padding: .875rem 2rem;
            }
        }

        .logo {
            display: flex;
            align-items: center;
            gap: .5rem;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 1.125rem;
            font-weight: 800;
            color: var(--color-primary-dark);
            letter-spacing: .2px;
            white-space: nowrap;
        }

        .header-search {
            display: none;
            align-items: center;
            flex: 1;
            max-width: 280px;
            position: relative;
        }

        @media (min-width: 768px) {
            .header-search {
                display: flex;
            }
        }

        .header-search input {
            width: 100%;
            border: 1.5px solid #E7E3DA;
            border-radius: 9999px;
            padding: .5rem 2.5rem .5rem 1rem;
            font-size: .875rem;
            background: #FAFAF7;
            transition: all .2s;
            color: #1C2A26;
        }

        .header-search input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(20, 184, 166, .15);
        }

        .header-search svg {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: #9CA3AF;
            pointer-events: none;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: .5rem;
        }

        .header-actions .btn-login {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: .5rem 1.25rem;
            border-radius: 9999px;
            font-weight: 700;
            font-size: .875rem;
            color: #fff;
            background: var(--gradient-brand);
            transition: all .2s;
            min-height: 40px;
        }

        .header-actions .btn-login:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(11, 92, 78, .35);
        }

        .header-actions .btn-download {
            display: none;
            align-items: center;
            justify-content: center;
            padding: .5rem 1.25rem;
            border-radius: 9999px;
            font-weight: 700;
            font-size: .875rem;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
            background: transparent;
            transition: all .2s;
            min-height: 40px;
        }

        .header-actions .btn-download:hover {
            background: rgba(20, 184, 166, .08);
        }

        @media (min-width: 480px) {
            .header-actions .btn-download {
                display: inline-flex;
            }
        }

        .search-toggle {
            width: 40px;
            height: 40px;
            border-radius: 9999px;
            border: 1.5px solid #E7E3DA;
            background: #FAFAF7;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #5C6B66;
            cursor: pointer;
        }

        @media (min-width: 768px) {
            .search-toggle {
                display: none;
            }
        }

        .mobile-search {
            display: none;
            padding: .5rem 1.25rem 1rem;
            border-bottom: 1px solid #F0EEE8;
        }

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

        .mobile-search input {
            width: 100%;
            border: 1.5px solid #E7E3DA;
            border-radius: 9999px;
            padding: .55rem 1rem;
            font-size: .875rem;
            background: #FAFAF7;
        }

        .channel-nav {
            background: var(--bg-canvas);
            border-top: 1px solid rgba(231, 227, 218, .7);
            border-bottom: 1px solid rgba(231, 227, 218, .7);
            position: sticky;
            top: 0;
            z-index: 45;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .04);
        }

        .channel-tabs {
            display: flex;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            gap: .375rem;
            padding: .625rem 1.25rem;
            max-width: 1200px;
            margin: 0 auto;
            align-items: center;
            white-space: nowrap;
        }

        @media (min-width: 768px) {
            .channel-tabs {
                padding: .75rem 2rem;
                gap: .5rem;
            }
        }

        .channel-tabs::-webkit-scrollbar {
            display: none;
        }

        .channel-tabs a {
            display: inline-flex;
            align-items: center;
            padding: .5rem 1.25rem;
            border-radius: 9999px;
            font-size: .875rem;
            font-weight: 600;
            color: #5C6B66;
            transition: all .2s;
            flex-shrink: 0;
            min-height: 40px;
        }

        .channel-tabs a:hover {
            background: rgba(20, 184, 166, .08);
            color: var(--color-primary);
        }

        .channel-tabs a.active {
            background: var(--gradient-brand);
            color: #fff;
            box-shadow: 0 4px 12px rgba(11, 92, 78, .25);
        }

        /* Hero */
        .hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 4rem 0 5rem;
        }

        @media (min-width: 768px) {
            .hero {
                padding: 6.5rem 0 7rem;
                min-height: 620px;
                display: flex;
                align-items: center;
            }
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(11, 92, 78, .92) 0%, rgba(15, 118, 110, .78) 55%, rgba(11, 92, 78, .45) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            color: #fff;
            max-width: 640px;
        }

        .hero-content h1 {
            font-size: 2.25rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            letter-spacing: .5px;
        }

        @media (min-width: 768px) {
            .hero-content h1 {
                font-size: 3.25rem;
                line-height: 1.15;
            }
        }

        .hero-sub {
            font-size: 1.0625rem;
            color: rgba(255, 255, 255, .92);
            margin-bottom: 2rem;
            line-height: 1.65;
            max-width: 520px;
        }

        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: .75rem;
            margin-bottom: 2.5rem;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: .5rem;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: .375rem;
            background: rgba(255, 255, 255, .12);
            border-radius: 9999px;
            padding: .375rem .875rem;
            font-size: .8125rem;
            border: 1px solid rgba(255, 255, 255, .18);
            backdrop-filter: blur(4px);
        }

        /* 指标看板 */
        .stats-band {
            background: #fff;
            border-radius: 1.25rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, .08);
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            padding: 1.75rem;
            margin-top: -3rem;
            position: relative;
            z-index: 3;
        }

        @media (min-width: 768px) {
            .stats-band {
                grid-template-columns: repeat(4, 1fr);
                padding: 2.5rem 2rem;
            }
        }

        .stat-item {
            text-align: center;
            padding: .5rem;
        }

        .stat-item .stat-num {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
            font-feature-settings: "tnum";
        }

        @media (min-width: 768px) {
            .stat-item .stat-num {
                font-size: 2.25rem;
            }
        }

        .stat-item .stat-unit {
            font-size: .875rem;
            font-weight: 600;
            color: var(--color-accent);
        }

        .stat-item .stat-label {
            font-size: .8125rem;
            color: #5C6B66;
            margin-top: .25rem;
        }

        .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: .25rem;
            font-size: .75rem;
            color: var(--color-primary);
            font-weight: 600;
        }

        /* 板块标题 */
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 3rem;
        }

        .section-head .tag {
            display: inline-block;
            background: rgba(20, 184, 166, .1);
            color: var(--color-primary);
            font-size: .8125rem;
            font-weight: 700;
            padding: .25rem .875rem;
            border-radius: 9999px;
            margin-bottom: .75rem;
            letter-spacing: .3px;
        }

        .section-head h2 {
            font-size: 1.875rem;
            font-weight: 800;
            color: #1C2A26;
            margin-bottom: .75rem;
            line-height: 1.3;
        }

        @media (min-width: 768px) {
            .section-head h2 {
                font-size: 2.5rem;
            }
        }

        .section-head p {
            color: #5C6B66;
            font-size: 1rem;
            line-height: 1.7;
        }

        .section-head::before {
            content: '';
            display: block;
            width: 48px;
            height: 4px;
            border-radius: 9999px;
            background: var(--gradient-brand);
            margin: 0 auto 1rem;
        }

        /* 对比 */
        .comparison-wrap {
            background: #fff;
            border-radius: 1.5rem;
            border: 1px solid #E7E3DA;
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr;
        }

        @media (min-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr auto 1fr;
            }
        }

        .comparison-panel {
            padding: 2rem;
        }

        @media (min-width: 768px) {
            .comparison-panel {
                padding: 2.5rem 2.25rem;
            }
        }

        .comparison-before {
            background: #FAFAF7;
        }

        .comparison-after {
            background: var(--gradient-brand);
            color: #fff;
        }

        .comparison-vs {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: .75rem;
            background: #fff;
        }

        .comparison-vs span {
            width: 48px;
            height: 48px;
            border-radius: 9999px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 800;
            font-size: .875rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px rgba(245, 158, 11, .4);
        }

        @media (min-width: 768px) {
            .comparison-vs {
                padding: 0 .5rem;
            }
        }

        .comparison-panel h3 {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
            display: flex;
            align-items: center;
            gap: .5rem;
        }

        .comparison-item {
            display: flex;
            align-items: flex-start;
            gap: .75rem;
            margin-bottom: 1rem;
            padding: .75rem;
            border-radius: .75rem;
            background: rgba(0, 0, 0, .02);
            border: 1px solid rgba(0, 0, 0, .04);
        }

        .comparison-after .comparison-item {
            background: rgba(255, 255, 255, .1);
            border-color: rgba(255, 255, 255, .15);
            color: #fff;
        }

        .comparison-item .icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 9999px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .75rem;
            font-weight: 800;
        }

        .comparison-before .icon {
            background: rgba(239, 68, 68, .1);
            color: #DC2626;
        }

        .comparison-after .icon {
            background: rgba(245, 158, 11, .25);
            color: #FBBF24;
        }

        .comparison-item .text {
            font-size: .875rem;
            line-height: 1.55;
        }

        .comparison-item .text .label {
            font-weight: 700;
            margin-bottom: .125rem;
        }

        .comparison-item .text .desc {
            opacity: .8;
            font-size: .8125rem;
        }

        /* 资讯卡 */
        .news-card {
            background: #fff;
            border: 1px solid #E7E3DA;
            border-radius: 1rem;
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            display: block;
            transition: all .3s ease;
        }

        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(20, 184, 166, .45);
        }

        .news-card .badge {
            display: inline-block;
            background: rgba(245, 158, 11, .14);
            color: #92400E;
            font-size: .75rem;
            font-weight: 700;
            padding: .25rem .75rem;
            border-radius: 9999px;
        }

        .news-card h3 {
            font-size: 1.0625rem;
            font-weight: 700;
            color: #1C2A26;
            line-height: 1.5;
            margin-bottom: .5rem;
        }

        .news-card p {
            color: #5C6B66;
            font-size: .875rem;
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card time {
            font-size: .8125rem;
            color: #9CA3AF;
            display: block;
            margin-top: .75rem;
        }

        .news-card .read-more {
            color: var(--color-primary);
            font-weight: 600;
            font-size: .8125rem;
            margin-top: .75rem;
            display: inline-flex;
            align-items: center;
            gap: .25rem;
            transition: color .2s;
        }

        .news-card:hover .read-more {
            color: var(--color-primary-dark);
        }

        /* FAQ */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid #E7E3DA;
            border-radius: 1rem;
            margin-bottom: .875rem;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, .03);
            transition: box-shadow .25s;
        }

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

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: .9375rem;
            color: #1C2A26;
            transition: color .2s;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 9999px;
            border: 1.5px solid #D1CCC2;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #5C6B66;
            flex-shrink: 0;
            transition: transform .3s, background .3s, border-color .3s;
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(20, 184, 166, .08);
        }

        .faq-item .faq-answer {
            padding: 0 1.5rem 1.25rem;
            color: #5C6B66;
            font-size: .875rem;
            line-height: 1.75;
        }

        /* 表单 */
        .contact-section {
            background: var(--gradient-brand);
            border-radius: 1.5rem;
            padding: 2.5rem 1.75rem;
            position: relative;
            overflow: hidden;
        }

        @media (min-width: 768px) {
            .contact-section {
                padding: 4rem 3.5rem;
            }
        }

        .contact-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            position: relative;
            z-index: 2;
        }

        @media (min-width: 768px) {
            .contact-grid {
                grid-template-columns: 1fr 1fr;
                gap: 3.5rem;
            }
        }

        .contact-info h2 {
            font-size: 1.75rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 1rem;
        }

        .contact-info p {
            color: rgba(255, 255, 255, .85);
            font-size: .9375rem;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .contact-meta {
            margin-top: 2rem;
        }

        .contact-meta-item {
            display: flex;
            align-items: center;
            gap: .75rem;
            color: rgba(255, 255, 255, .9);
            font-size: .875rem;
            margin-bottom: .75rem;
        }

        .contact-meta-item svg {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            color: var(--color-accent);
        }

        .contact-form .form-group {
            margin-bottom: 1.125rem;
        }

        .contact-form label {
            display: block;
            font-size: .8125rem;
            font-weight: 600;
            color: rgba(255, 255, 255, .9);
            margin-bottom: .375rem;
        }

        .contact-form input,
        .contact-form select,
        .contact-form textarea {
            width: 100%;
            border-radius: .75rem;
            border: 1.5px solid rgba(255, 255, 255, .35);
            background: rgba(255, 255, 255, .12);
            padding: .75rem 1rem;
            font-size: .875rem;
            color: #fff;
            transition: all .2s;
        }

        .contact-form input::placeholder,
        .contact-form textarea::placeholder {
            color: rgba(255, 255, 255, .5);
        }

        .contact-form input:focus,
        .contact-form select:focus,
        .contact-form textarea:focus {
            outline: none;
            border-color: var(--color-accent);
            box-shadow: 0 0 0 4px rgba(245, 158, 11, .25);
            background: rgba(255, 255, 255, .18);
        }

        .contact-form select option {
            color: #1C2A26;
            background: #fff;
        }

        .contact-form .btn-submit {
            width: 100%;
            padding: .875rem;
            border-radius: 9999px;
            background: #fff;
            color: var(--color-primary-dark);
            font-weight: 800;
            font-size: .9375rem;
            border: none;
            cursor: pointer;
            transition: all .25s;
            margin-top: .5rem;
        }

        .contact-form .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(0, 0, 0, .2);
        }

        .form-success {
            display: none;
            background: rgba(255, 255, 255, .15);
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: .75rem;
            padding: 1rem;
            margin-top: 1rem;
            text-align: center;
            color: #fff;
            font-size: .875rem;
        }

        /* 页脚 */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, .8);
            padding-top: 4rem;
            padding-bottom: 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
                padding: 0 2rem;
            }
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: .5rem;
            margin-bottom: 1rem;
        }

        .footer-brand .footer-logo span {
            font-size: 1.125rem;
            font-weight: 800;
            color: #fff;
        }

        .footer-brand p {
            font-size: .875rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, .7);
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: .9375rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, .7);
            font-size: .875rem;
            margin-bottom: .625rem;
            transition: color .2s;
        }

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

        .footer-bottom {
            max-width: 1200px;
            margin: 3rem auto 0;
            padding: 1.5rem 1.25rem 0;
            border-top: 1px solid rgba(255, 255, 255, .12);
            display: flex;
            flex-direction: column;
            gap: .75rem;
            justify-content: space-between;
            align-items: center;
        }

        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
                padding: 1.5rem 2rem 0;
            }
        }

        .footer-bottom p {
            font-size: .8125rem;
            color: rgba(255, 255, 255, .55);
            margin: 0;
        }

        .footer-bottom .friend-links {
            display: flex;
            gap: 1rem;
            font-size: .8125rem;
            color: rgba(255, 255, 255, .55);
        }

        .footer-bottom .friend-links a {
            color: rgba(255, 255, 255, .55);
            transition: color .2s;
        }

        .footer-bottom .friend-links a:hover {
            color: var(--color-accent);
        }

        /* 通用 */
        .bg-canvas-soft {
            background-color: #F7F5F0;
        }

        .rounded-radius-card {
            border-radius: var(--radius-card);
        }

        .shadow-card {
            box-shadow: var(--shadow-card);
        }

        .text-gradient {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

/* roulang page: article */
:root {
            --color-primary: #0F766E;
            --color-primary-deep: #0B5C4E;
            --color-primary-light: #14B8A6;
            --color-accent: #F59E0B;
            --color-accent-soft: rgba(245, 158, 11, 0.14);
            --bg-canvas: #F7F5F0;
            --bg-card: #FFFFFF;
            --text-main: #1C2A26;
            --text-muted: #5C6B66;
            --border-soft: #E7E3DA;
            --radius-card: 1rem;
            --shadow-card: 0 1px 3px rgba(28, 42, 38, 0.06);
            --shadow-hover: 0 12px 30px rgba(11, 92, 78, 0.12);
            --gradient-brand: linear-gradient(135deg, #0B5C4E 0%, #14B8A6 100%);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background-color: var(--bg-canvas);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 100%;
            outline: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.35;
            margin: 0 0 .5em;
            font-weight: 700;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            border-radius: 999px;
            padding: .625rem 1.5rem;
            font-weight: 600;
            line-height: 1.4;
            border: 1.5px solid transparent;
            cursor: pointer;
            transition: all .25s ease;
            min-height: 44px;
            font-size: .9375rem;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(20, 184, 166, .3);
        }

        .btn-primary {
            background: var(--gradient-brand);
            color: #fff;
            box-shadow: 0 4px 14px rgba(11, 92, 78, .25);
        }

        .btn-primary:hover {
            box-shadow: 0 8px 24px rgba(11, 92, 78, .35);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(11, 92, 78, .2);
        }

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

        .btn-secondary:hover {
            background: rgba(20, 184, 166, .1);
            transform: translateY(-2px);
        }

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

        .btn-accent:hover {
            background: var(--color-accent-600);
            transform: translateY(-2px);
        }

        .channel-tabs {
            display: flex;
            gap: .375rem;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: .25rem 0;
        }

        .channel-tabs::-webkit-scrollbar {
            display: none;
        }

        .channel-tabs a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: .45rem 1.15rem;
            border-radius: 999px;
            font-size: .875rem;
            font-weight: 500;
            color: var(--text-muted);
            white-space: nowrap;
            transition: all .2s ease;
            border: 1px solid transparent;
        }

        .channel-tabs a:hover {
            background: rgba(20, 184, 166, .1);
            color: var(--color-primary-deep);
        }

        .channel-tabs a.active {
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(11, 92, 78, .22);
        }

        .logo-mark {
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }

        .site-header {
            background: var(--bg-canvas);
            border-bottom: 1px solid var(--border-soft);
            position: relative;
            z-index: 50;
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: .75rem 0;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: .75rem;
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -.01em;
        }

        .header-search {
            flex: 1;
            max-width: 320px;
            margin-left: auto;
        }

        .header-search form {
            display: flex;
        }

        .header-search input {
            width: 100%;
            border: 1.5px solid var(--border-soft);
            background: #fff;
            border-radius: 999px 0 0 999px;
            padding: .5rem 1rem;
            font-size: .875rem;
            color: var(--text-main);
            transition: border-color .2s, box-shadow .2s;
        }

        .header-search input:focus {
            border-color: var(--color-primary-light);
            box-shadow: 0 0 0 3px rgba(20, 184, 166, .15);
        }

        .header-search button {
            border: 1.5px solid var(--border-soft);
            border-left: none;
            background: #fff;
            border-radius: 0 999px 999px 0;
            padding: 0 1rem;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            transition: background .2s;
        }

        .header-search button:hover {
            background: var(--color-primary);
            color: #fff;
        }

        .header-actions {
            display: flex;
            gap: .75rem;
            flex-shrink: 0;
        }

        .header-actions .btn {
            padding: .5rem 1.25rem;
            font-size: .875rem;
            min-height: 40px;
        }

        .channel-nav {
            border-top: 1px solid var(--border-soft);
            background: var(--bg-canvas);
        }

        .channel-nav.sticky {
            position: sticky;
            top: 0;
            z-index: 45;
            box-shadow: 0 2px 8px rgba(28, 42, 38, .04);
        }

        .article-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 3.5rem 0 3rem;
            color: #fff;
            isolation: isolate;
        }

        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 92, 78, .92) 0%, rgba(15, 118, 110, .78) 100%);
            z-index: -1;
        }

        .article-hero-inner {
            max-width: 900px;
            margin: 0 auto;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: .5rem;
            font-size: .8125rem;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 1.25rem;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .85);
        }

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

        .breadcrumb .sep {
            opacity: .5;
        }

        .article-hero h1 {
            font-size: 2.25rem;
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: .875rem;
            color: #fff;
            text-shadow: 0 2px 12px rgba(0, 0, 0, .15);
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.25rem;
            font-size: .8125rem;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 1.5rem;
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: .375rem;
        }

        .article-abstract {
            background: rgba(255, 255, 255, .14);
            border-left: 4px solid var(--color-accent);
            border-radius: .75rem;
            padding: 1rem 1.25rem;
            font-size: .9375rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, .92);
            backdrop-filter: blur(4px);
        }

        .article-layout {
            padding-top: 2.5rem;
            padding-bottom: 3rem;
        }

        .article-box {
            max-width: 760px;
            margin: 0 auto;
        }

        .article-content {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 2rem 2.25rem;
            box-shadow: var(--shadow-card);
            font-size: 1.0625rem;
            line-height: 1.8;
            color: var(--text-main);
            word-break: break-word;
        }

        .article-content p {
            margin: 0 0 1.35rem;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 2rem 0 .875rem;
            padding-bottom: .5rem;
            border-bottom: 1px solid var(--border-soft);
            color: var(--color-primary-deep);
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 1.75rem 0 .75rem;
            color: var(--color-primary);
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.35rem 1.5rem;
            padding: 0;
        }

        .article-content li {
            margin-bottom: .5rem;
        }

        .article-content blockquote {
            margin: 1.5rem 0;
            padding: .875rem 1.25rem;
            border-left: 4px solid var(--color-primary-light);
            background: rgba(20, 184, 166, .07);
            border-radius: .5rem;
            color: var(--text-main);
        }

        .article-content img {
            border-radius: 1rem;
            margin: 1.5rem 0;
            box-shadow: var(--shadow-card);
        }

        .article-content a {
            color: var(--color-primary);
            font-weight: 500;
            border-bottom: 1px solid rgba(15, 118, 110, .3);
        }

        .article-content a:hover {
            color: var(--color-accent-600);
            border-bottom-color: var(--color-accent-500);
        }

        .article-content code {
            background: rgba(11, 92, 78, .08);
            border-radius: .375rem;
            padding: .125rem .4rem;
            font-size: .875em;
        }

        .article-nav-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: .75rem;
            margin-top: 2rem;
            padding-top: 1.25rem;
            border-top: 1px solid var(--border-soft);
        }

        .article-nav-links a {
            font-size: .875rem;
            color: var(--color-primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: .375rem;
        }

        .article-nav-links a:hover {
            color: var(--color-accent-600);
        }

        .article-empty {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 4rem 2rem;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .article-empty p {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--text-main);
        }

        .article-empty .btn {
            margin: 0 .5rem;
        }

        .related-section {
            background: var(--bg-canvas);
            padding: 3.5rem 0 4rem;
            border-top: 1px solid var(--border-soft);
        }

        .section-head {
            margin-bottom: 2rem;
        }

        .section-head .section-tag {
            display: inline-block;
            font-size: .8125rem;
            font-weight: 600;
            color: var(--color-accent-600);
            background: var(--color-accent-soft);
            border-radius: 999px;
            padding: .25rem .875rem;
            margin-bottom: .6rem;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .related-card {
            display: block;
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform .25s ease, box-shadow .25s ease;
        }

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

        .related-cover {
            height: 170px;
            background-size: cover;
            background-position: center;
            background-color: #E7E3DA;
        }

        .related-info {
            padding: 1.25rem;
        }

        .related-info h3 {
            font-size: 1.0625rem;
            font-weight: 650;
            margin-bottom: .5rem;
            line-height: 1.4;
            color: var(--text-main);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-info p {
            font-size: .875rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: .875rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-date {
            font-size: .8125rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: .375rem;
        }

        .article-cta {
            background: var(--gradient-brand);
            padding: 3rem 0;
            color: #fff;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .cta-text h2 {
            font-size: 1.75rem;
            margin-bottom: .375rem;
        }

        .cta-text p {
            font-size: .9375rem;
            opacity: .85;
            margin: 0;
        }

        .cta-actions {
            display: flex;
            gap: .875rem;
            flex-wrap: wrap;
        }

        .cta-actions .btn {
            background: #fff;
            color: var(--color-primary-deep);
            border: none;
        }

        .cta-actions .btn:hover {
            background: rgba(255, 255, 255, .9);
            transform: translateY(-2px);
        }

        .cta-actions .btn-outline-white {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, .75);
            color: #fff;
        }

        .cta-actions .btn-outline-white:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
        }

        .site-footer {
            background: var(--color-primary-deep);
            color: rgba(255, 255, 255, .82);
            padding: 3rem 0 0;
            font-size: .875rem;
        }

        .footer-grid {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem 2.5rem;
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 2rem;
        }

        .footer-brand p {
            margin: .75rem 0 0;
            line-height: 1.7;
            color: rgba(255, 255, 255, .6);
            font-size: .875rem;
            max-width: 340px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: .625rem;
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
        }

        .footer-col h4 {
            font-size: .9375rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer-col a {
            display: block;
            padding: .25rem 0;
            color: rgba(255, 255, 255, .65);
            transition: color .2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 1.25rem 1.25rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
            max-width: 1200px;
            margin: 0 auto;
            font-size: .8125rem;
            color: rgba(255, 255, 255, .5);
        }

        .footer-bottom p {
            margin: 0;
        }

        .friend-links {
            display: flex;
            gap: 1rem;
        }

        .friend-links a {
            color: rgba(255, 255, 255, .55);
            transition: color .2s;
        }

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

        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
                gap: .625rem;
            }

            .header-search {
                order: 3;
                max-width: 100%;
                flex-basis: 100%;
                margin-left: 0;
            }

            .header-search input {
                padding: .5rem .875rem;
            }

            .header-actions .btn {
                padding: .4375rem .875rem;
                font-size: .8125rem;
                min-height: 38px;
            }

            .brand-text {
                font-size: 1.05rem;
            }

            .channel-tabs {
                padding-bottom: .125rem;
            }

            .article-hero {
                padding: 2.5rem 0;
            }

            .article-hero h1 {
                font-size: 1.625rem;
            }

            .article-content {
                padding: 1.25rem 1.25rem 1.5rem;
                font-size: 1rem;
            }

            .article-abstract {
                font-size: .875rem;
                padding: .875rem 1rem;
            }

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-actions {
                width: 100%;
            }

            .cta-actions .btn {
                flex: 1;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .friend-links {
                flex-wrap: wrap;
            }
        }

        @media (max-width: 520px) {
            .related-grid {
                grid-template-columns: 1fr;
            }

            .header-actions .btn-secondary {
                display: none;
            }

            .header-actions .btn-primary {
                padding: .4375rem .75rem;
            }

            .brand-text {
                font-size: .975rem;
            }

            .article-meta {
                gap: .75rem;
                font-size: .8125rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #0F766E;
            --color-accent: #F59E0B;
            --bg-canvas: #F7F5F0;
            --bg-card: #FFFFFF;
            --text-main: #1C2A26;
            --text-muted: #5C6B66;
            --border-soft: #E7E3DA;
            --radius-card: 1rem;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, .06);
            --shadow-hover: 0 12px 24px rgba(15, 118, 110, .12);
            --gradient-brand: linear-gradient(135deg, #0B5C4E 0%, #14B8A6 100%);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background-color: var(--bg-canvas);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 100%;
            line-height: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .section {
            padding: 4rem 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 6rem 0;
            }
        }

        .gradient-brand {
            background: var(--gradient-brand);
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: #99F6E4;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 9999px;
            font-weight: 600;
            cursor: pointer;
            transition: all .2s ease;
        }

        .btn-primary {
            background: var(--gradient-brand);
            color: #fff;
            padding: .75rem 1.75rem;
        }

        .btn-primary:hover {
            box-shadow: 0 8px 20px rgba(15, 118, 110, .25);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--color-primary);
            color: var(--color-primary);
            padding: .75rem 1.75rem;
        }

        .btn-outline:hover {
            background: rgba(15, 118, 110, .08);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: .25rem;
            border-radius: 9999px;
            font-size: .8125rem;
            padding: .25rem .75rem;
            background: rgba(245, 158, 11, .14);
            color: #B45309;
            font-weight: 500;
        }

        .section-title {
            font-size: 1.875rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1.5rem;
            letter-spacing: -0.01em;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2.5rem;
            }
        }

        .section-kicker {
            font-size: .875rem;
            font-weight: 600;
            color: var(--color-primary);
            text-transform: uppercase;
            letter-spacing: .08em;
            margin-bottom: .5rem;
            display: flex;
            align-items: center;
            gap: .5rem;
        }

        .section-kicker::before {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient-brand);
        }

        .timeline {
            position: relative;
            padding-left: 2rem;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: .5625rem;
            top: .25rem;
            bottom: .25rem;
            width: 2px;
            border-radius: 999px;
            background: linear-gradient(180deg, #0B5C4E, #14B8A6, rgba(245, 158, 11, .4));
        }

        .timeline-item {
            position: relative;
            padding-bottom: 2.5rem;
            padding-left: 0;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -2rem;
            top: .25rem;
            width: 1.25rem;
            height: 1.25rem;
            border-radius: 9999px;
            background: var(--gradient-brand);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px rgba(15, 118, 110, .25);
        }

        .timeline-dot::before {
            content: '';
            position: absolute;
            inset: .0625rem;
            border-radius: 9999px;
            background: var(--gradient-brand);
        }

        .timeline-dot.accent {
            background: #F59E0B;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: 1rem;
            overflow: hidden;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .faq-item[open] {
            border-color: #99F6E4;
            box-shadow: 0 4px 12px rgba(15, 118, 110, .08);
        }

        .faq-summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            list-style: none;
            font-weight: 600;
            font-size: 1.0625rem;
            transition: color .2s ease;
        }

        .faq-summary::-webkit-details-marker {
            display: none;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 9999px;
            background: rgba(15, 118, 110, .1);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: transform .25s ease, background .25s ease;
            color: var(--color-primary);
            font-size: 1.125rem;
            font-weight: 500;
        }

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

        .faq-body {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-muted);
            line-height: 1.75;
        }

        .form-input {
            width: 100%;
            padding: .75rem 1rem;
            border-radius: .75rem;
            border: 1px solid var(--border-soft);
            background: #fff;
            font-size: .9375rem;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .form-input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(15, 118, 110, .1);
        }

        .focus-ring:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(20, 184, 166, .3);
        }

        .btn:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(20, 184, 166, .3);
        }

        a:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(20, 184, 166, .3);
            border-radius: .5rem;
        }

        .channel-nav {
            position: sticky;
            top: 0;
            z-index: 50;
            background: var(--bg-canvas);
            border-bottom: 1px solid var(--border-soft);
        }

        .channel-tabs {
            display: flex;
            gap: .5rem;
            padding: .625rem 0;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }

        .channel-tabs::-webkit-scrollbar {
            display: none;
        }

        .channel-tabs a {
            flex-shrink: 0;
            padding: .5rem 1.25rem;
            border-radius: 9999px;
            font-size: .9375rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all .2s ease;
            white-space: nowrap;
        }

        .channel-tabs a:hover {
            background: rgba(20, 184, 166, .1);
            color: var(--color-primary);
        }

        .channel-tabs a.active {
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
        }

        .header-topbar {
            background: var(--bg-canvas);
            border-bottom: 1px solid var(--border-soft);
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient-brand);
            color: #fff;
            border-radius: .625rem;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .search-input {
            border-radius: 9999px;
            border: 1px solid var(--border-soft);
            background: #fff;
            padding: .5625rem 1rem .5625rem 2.5rem;
            font-size: .875rem;
            width: 100%;
            max-width: 260px;
            transition: box-shadow .2s ease, border-color .2s ease;
        }

        .search-input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(20, 184, 166, .12);
        }

        .search-wrap {
            position: relative;
        }

        .search-wrap svg {
            position: absolute;
            left: .875rem;
            top: 50%;
            transform: translateY(-50%);
            color: #9CA8A3;
            pointer-events: none;
        }

        .data-badge {
            display: inline-flex;
            flex-direction: column;
            align-items: flex-start;
            padding: 1rem 1.25rem;
            border-radius: 1rem;
            background: rgba(245, 158, 11, .14);
        }

        .data-badge-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.1;
            font-feature-settings: "tnum";
        }

        .data-badge-label {
            font-size: .8125rem;
            color: var(--text-muted);
            margin-top: .25rem;
        }

        .footer-logo svg {
            width: 18px;
            height: 18px;
        }

        .footer-grid a {
            transition: color .2s ease;
        }

        .footer-grid a:hover {
            color: #F59E0B !important;
        }

        .home-bg {
            background-image: linear-gradient(135deg, rgba(11, 92, 78, .85) 0%, rgba(20, 184, 166, .65) 100%), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
        }

        @media (max-width: 768px) {
            .header-cta-wrap {
                display: none;
            }
        }

/* roulang page: category1 */
:root {
  --primary-700: #0B5C4E;
  --primary-600: #0F766E;
  --primary-500: #14B8A6;
  --primary-400: #2DD4BF;
  --primary-300: #5EEAD4;
  --accent-500: #F59E0B;
  --accent-400: #FBBF24;
  --accent-soft: rgba(245, 158, 11, 0.14);
  --bg-canvas: #F7F5F0;
  --bg-card: #FFFFFF;
  --text-main: #1C2A26;
  --text-muted: #5C6B66;
  --border-soft: #E7E3DA;
  --radius-card: 1.25rem;
  --shadow-card: 0 1px 3px rgba(0, 0, 0, .06), 0 4px 12px rgba(0, 0, 0, .04);
  --shadow-hover: 0 8px 30px rgba(15, 118, 110, .12), 0 2px 8px rgba(0, 0, 0, .06);
  --gradient-brand: linear-gradient(135deg, #0B5C4E 0%, #14B8A6 100%);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-canvas);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
::selection { background: rgba(20, 184, 166, .2); }

.container { max-width: 1200px; margin: 0 auto; padding-left: 1.25rem; padding-right: 1.25rem; }
@media (min-width: 768px) { .container { padding-left: 2rem; padding-right: 2rem; } }

.section-block { padding: 4rem 0; }
@media (min-width: 768px) { .section-block { padding: 5.5rem 0; } }

.section-block.bg-white { background: var(--bg-card); border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }

.section-head { max-width: 720px; margin-bottom: 2.5rem; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-tag {
  display: inline-flex; align-items: center; gap: .375rem;
  padding: .25rem .875rem; border-radius: 999px; background: var(--accent-soft);
  color: #92400E; font-size: .75rem; font-weight: 700; letter-spacing: .02em;
  margin-bottom: .875rem;
}
.section-title { font-size: 1.875rem; font-weight: 800; line-height: 1.3; margin-bottom: 1rem; letter-spacing: -.01em; }
.section-desc { font-size: 1rem; color: var(--text-muted); max-width: 680px; line-height: 1.75; }
@media (min-width: 768px) {
  .section-title { font-size: 2.25rem; }
}

/* ===== Header ===== */
.site-header { background: var(--bg-canvas); border-bottom: 1px solid var(--border-soft); position: relative; z-index: 50; }
.header-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 0; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .75rem; flex-shrink: 0; }
.logo-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 12px;
  background: var(--gradient-brand); color: #fff; flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(11, 92, 78, .25);
}
.brand-name { font-size: 1.25rem; font-weight: 800; color: var(--text-main); letter-spacing: -.01em; white-space: nowrap; }
.header-actions { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.search-form {
  display: flex; align-items: center; gap: .375rem;
  background: #fff; border: 1px solid var(--border-soft); border-radius: 999px;
  padding: .25rem .25rem .25rem 1rem; max-width: 260px; width: 100%;
  transition: border-color .2s, box-shadow .2s;
}
.search-form:focus-within { border-color: var(--primary-500); box-shadow: 0 0 0 3px rgba(20, 184, 166, .15); }
.search-form svg { width: 16px; height: 16px; color: var(--text-muted); flex-shrink: 0; }
.search-form input { border: none; outline: none; background: transparent; font-size: .875rem; color: var(--text-main); width: 100%; min-width: 0; }
.search-form button {
  border: none; background: var(--gradient-brand); color: #fff; border-radius: 999px;
  padding: .375rem .875rem; font-size: .8125rem; font-weight: 600; cursor: pointer;
  min-height: 32px; transition: opacity .2s;
}
.search-form button:hover { opacity: .92; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .375rem;
  border-radius: 999px; font-weight: 600; font-size: .875rem;
  padding: .625rem 1.25rem; border: 1.5px solid transparent; cursor: pointer;
  min-height: 44px; line-height: 1; transition: transform .2s, box-shadow .2s, background .2s;
}
.btn-primary { background: var(--gradient-brand); color: #fff; box-shadow: 0 2px 8px rgba(11, 92, 78, .2); }
.btn-primary:hover { box-shadow: 0 6px 18px rgba(11, 92, 78, .3); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost { background: transparent; border-color: var(--primary-600); color: var(--primary-700); }
.btn-ghost:hover { background: rgba(20, 184, 166, .08); }
.btn-sm-header { padding: .5rem 1rem; font-size: .8125rem; min-height: 38px; }

.channel-nav { position: sticky; top: 0; z-index: 50; background: var(--bg-canvas); box-shadow: 0 1px 4px rgba(0, 0, 0, .03); }
.channel-tabs {
  display: flex; gap: .5rem; padding: .75rem 1.25rem; max-width: 1200px; margin: 0 auto;
  overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none;
}
.channel-tabs::-webkit-scrollbar { display: none; }
.channel-tabs a {
  flex-shrink: 0; padding: .5rem 1.25rem; border-radius: 999px;
  font-size: .9375rem; font-weight: 600; color: var(--text-muted);
  display: inline-flex; align-items: center; min-height: 40px;
  transition: background .2s, color .2s;
}
.channel-tabs a:hover { background: rgba(20, 184, 166, .1); color: var(--primary-700); }
.channel-tabs a.active { background: var(--gradient-brand); color: #fff; box-shadow: 0 2px 8px rgba(11, 92, 78, .25); }
@media (min-width: 768px) {
  .channel-tabs { padding-left: 2rem; padding-right: 2rem; }
}

/* ===== Banner ===== */
.category-banner {
  position: relative; background-size: cover; background-position: center;
  background-color: var(--primary-700); color: #fff;
}
.banner-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(11, 92, 78, .93) 0%, rgba(11, 92, 78, .78) 45%, rgba(20, 184, 166, .35) 100%);
}
.banner-content { position: relative; z-index: 2; padding: 4rem 0 3rem; max-width: 780px; }
.breadcrumb { display: flex; align-items: center; gap: .5rem; font-size: .8125rem; color: rgba(255, 255, 255, .8); margin-bottom: 1.25rem; flex-wrap: wrap; }
.breadcrumb a { color: rgba(255, 255, 255, .9); text-decoration: underline; text-underline-offset: 2px; transition: color .2s; }
.breadcrumb a:hover { color: var(--accent-400); }
.banner-content h1 { font-size: 2.25rem; line-height: 1.25; font-weight: 800; margin-bottom: 1rem; letter-spacing: -.01em; }
.banner-subtitle { font-size: 1.0625rem; line-height: 1.75; color: rgba(255, 255, 255, .88); max-width: 640px; margin-bottom: 1.5rem; }
.banner-tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.banner-tags span {
  display: inline-flex; align-items: center; padding: .3125rem .875rem; border-radius: 999px;
  background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .22);
  font-size: .8125rem; font-weight: 600;
}
@media (min-width: 768px) {
  .banner-content { padding: 5rem 0 4rem; }
  .banner-content h1 { font-size: 2.75rem; }
}

/* ===== Tip bar ===== */
.tip-bar { background: rgba(245, 158, 11, .1); border-bottom: 1px solid rgba(245, 158, 11, .18); }
.tip-inner { display: flex; align-items: flex-start; gap: .625rem; padding: .875rem 1.25rem; max-width: 1200px; margin: 0 auto; }
@media (min-width: 768px) { .tip-inner { padding: .875rem 2rem; } }
.tip-inner svg { width: 18px; height: 18px; color: var(--accent-600); flex-shrink: 0; margin-top: .1875rem; }
.tip-inner p { font-size: .8125rem; color: var(--text-main); line-height: 1.7; }

/* ===== Content index ===== */
.content-index { background: var(--bg-card); border-bottom: 1px solid var(--border-soft); }
.index-links { display: flex; flex-wrap: wrap; gap: .625rem; padding: 1.25rem 0; align-items: center; }
.index-label { font-size: .875rem; font-weight: 700; color: var(--text-muted); margin-right: .25rem; }
.index-links a {
  display: inline-flex; align-items: center; padding: .4375rem 1rem; border-radius: 999px;
  border: 1px solid var(--border-soft); background: var(--bg-canvas);
  font-size: .8125rem; font-weight: 600; color: var(--text-main);
  transition: all .2s;
}
.index-links a:hover { border-color: var(--primary-400); color: var(--primary-700); background: rgba(20, 184, 166, .08); }

/* ===== Methods grid ===== */
.methods-grid { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
@media (min-width: 640px) { .methods-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .methods-grid { grid-template-columns: repeat(4, 1fr); gap: 1.5rem; } }
.method-card {
  background: var(--bg-card); border: 1px solid var(--border-soft); border-radius: var(--radius-card);
  padding: 1.75rem 1.5rem; box-shadow: var(--shadow-card);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.method-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary-400); }
.method-icon {
  width: 48px; height: 48px; border-radius: 14px; background: rgba(20, 184, 166, .12);
  color: var(--primary-600); display: flex; align-items: center; justify-content: center; margin-bottom: 1.125rem;
}
.method-card h3 { font-size: 1.125rem; font-weight: 700; margin-bottom: .5rem; }
.method-card p { font-size: .875rem; color: var(--text-muted); line-height: 1.7; }

.social-proof { display: flex; align-items: center; gap: .75rem; margin-top: 1.5rem; flex-wrap: wrap; }
.user-avatars { display: flex; align-items: center; }
.avatar {
  width: 36px; height: 36px; border-radius: 999px; background: var(--gradient-brand);
  color: #fff; display: inline-flex; align-items: center; justify-content: center;
  font-size: .75rem; font-weight: 700; border: 2px solid var(--bg-canvas); margin-left: -.5rem;
}
.avatar:first-child { margin-left: 0; }
.avatar-more { background: var(--accent-500); color: var(--primary-700); font-size: .6875rem; font-weight: 800; border-color: var(--bg-canvas); }
.social-proof > span:last-child { font-size: .8125rem; color: var(--text-muted); }

/* ===== Content grid / alternating ===== */
.content-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; align-items: center; }
@media (min-width: 1024px) {
  .content-grid { grid-template-columns: 1fr 1fr; gap: 3.5rem; }
  .content-grid.swap .content-media { order: 1; }
  .content-grid.swap .content-text { order: 2; }
}
.content-text h2 { font-size: 1.5rem; font-weight: 800; line-height: 1.35; margin-bottom: 1rem; letter-spacing: -.01em; }
.content-text p { color: var(--text-muted); margin-bottom: 1rem; line-height: 1.8; }
.content-media { border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); }
.content-media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }

.step-list { list-style: none; margin-top: 1.5rem; counter-reset: step; }
.step-list li {
  counter-increment: step; position: relative; padding: 0 0 1.25rem 2.75rem;
  font-size: .9375rem; color: var(--text-main); line-height: 1.7;
}
.step-list li::before {
  content: counter(step); position: absolute; left: 0; top: 0;
  width: 2rem; height: 2rem; border-radius: 999px; background: var(--gradient-brand);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: .8125rem; font-weight: 700; box-shadow: 0 2px 6px rgba(11, 92, 78, .25);
}
.step-list li:last-child { padding-bottom: 0; }

.check-list { list-style: none; margin-top: 1.25rem; }
.check-list li { display: flex; align-items: flex-start; gap: .625rem; padding: .375rem 0; color: var(--text-main); font-size: .9375rem; }
.check-list li svg { flex-shrink: 0; color: var(--primary-500); margin-top: .25rem; }

/* ===== Stats ===== */
.stats-section { background: var(--gradient-brand); color: #fff; }
.stats-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; padding: 3rem 0; }
@media (min-width: 768px) { .stats-grid { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; } }
.stat-card {
  background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--radius-card); padding: 1.5rem; text-align: left;
}
.stat-card .stat-num { font-size: 2.25rem; font-weight: 800; color: var(--accent-400); line-height: 1.1; font-feature-settings: "tnum"; margin-bottom: .375rem; }
.stat-card .stat-label { font-size: .9375rem; font-weight: 600; color: rgba(255, 255, 255, .9); }
.stat-card .stat-desc { font-size: .8125rem; color: rgba(255, 255, 255, .65); margin-top: .25rem; }

/* ===== FAQ ===== */
.faq-list { display: flex; flex-direction: column; gap: 1rem; max-width: 800px; margin: 2rem auto 0; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border-soft); border-radius: var(--radius-card); overflow: hidden; transition: box-shadow .2s; }
.faq-item:hover { box-shadow: var(--shadow-card); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.25rem 1.5rem; cursor: pointer; list-style: none; font-weight: 700;
  font-size: 1rem; min-height: 52px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon {
  display: flex; align-items: center; justify-content: center; width: 28px; height: 28px;
  border-radius: 999px; background: rgba(20, 184, 166, .12); color: var(--primary-600);
  flex-shrink: 0; transition: transform .3s; font-size: 1.125rem; line-height: 1;
}
.faq-item[open] .faq-icon { transform: rotate(45deg); }
.faq-answer { padding: 0 1.5rem 1.5rem; color: var(--text-muted); line-height: 1.8; font-size: .9375rem; }

/* ===== CTA ===== */
.cta-section { padding: 4rem 0; }
@media (min-width: 768px) { .cta-section { padding: 5.5rem 0; } }
.cta-card {
  background: var(--gradient-brand); border-radius: 1.75rem; padding: 2rem 1.5rem;
  display: grid; grid-template-columns: 1fr; gap: 2rem; color: #fff; position: relative; overflow: hidden;
  box-shadow: 0 16px 48px rgba(11, 92, 78, .2);
}
@media (min-width: 1024px) { .cta-card { grid-template-columns: 1fr 1fr; padding: 3rem; gap: 3rem; } }
.cta-card::after {
  content: ''; position: absolute; width: 320px; height: 320px; border-radius: 50%;
  background: rgba(255, 255, 255, .06); top: -120px; right: -80px; pointer-events: none;
}
.cta-info { position: relative; z-index: 1; }
.cta-info h2 { font-size: 1.75rem; font-weight: 800; margin-bottom: 1rem; line-height: 1.3; }
.cta-info p { color: rgba(255, 255, 255, .85); line-height: 1.75; margin-bottom: 1.25rem; font-size: .9375rem; }
.cta-contact { display: flex; flex-direction: column; gap: .5rem; }
.cta-contact span { display: flex; align-items: center; gap: .5rem; font-size: .875rem; color: rgba(255, 255, 255, .88); }
.cta-contact svg { width: 16px; height: 16px; color: var(--accent-400); }

.cta-form {
  background: #fff; border-radius: 1.25rem; padding: 1.75rem 1.5rem;
  display: flex; flex-direction: column; gap: 1rem; color: var(--text-main);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .15); position: relative; z-index: 1;
}
.form-group { display: flex; flex-direction: column; gap: .375rem; }
.form-group label { font-size: .8125rem; font-weight: 700; color: var(--text-main); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; border: 1px solid var(--border-soft); border-radius: .75rem;
  padding: .625rem .875rem; font-size: .9375rem; background: var(--bg-canvas);
  color: var(--text-main); outline: none; min-height: 44px;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--accent-500); box-shadow: 0 0 0 3px rgba(245, 158, 11, .18); background: #fff; }
.form-group textarea { resize: vertical; min-height: 88px; }
.form-submit {
  background: var(--gradient-brand); color: #fff; border: none; border-radius: 999px;
  padding: .75rem 1.5rem; font-weight: 700; cursor: pointer; min-height: 48px;
  transition: transform .2s, box-shadow .2s; font-size: .9375rem;
}
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(11, 92, 78, .3); }
.form-submit:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.form-tip { font-size: .75rem; color: var(--text-muted); text-align: center; }
.form-success { font-size: .875rem; color: var(--primary-600); font-weight: 600; text-align: center; background: rgba(20, 184, 166, .1); border-radius: .625rem; padding: .625rem; }

/* ===== Footer ===== */
.site-footer { background: var(--primary-700); color: rgba(255, 255, 255, .8); }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; padding: 3rem 0; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; padding: 4rem 0; gap: 1.5rem; } }
.footer-logo { display: flex; align-items: center; gap: .625rem; font-size: 1.125rem; font-weight: 800; color: #fff; margin-bottom: 1rem; }
.footer-brand p { font-size: .875rem; line-height: 1.75; color: rgba(255, 255, 255, .7); max-width: 320px; }
.footer-col h4 { font-size: .9375rem; font-weight: 700; color: #fff; margin-bottom: 1rem; }
.footer-col a { display: block; font-size: .875rem; color: rgba(255, 255, 255, .7); padding: .375rem 0; transition: color .2s; }
.footer-col a:hover { color: var(--accent-400); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .12); padding: 1.25rem 0; display: flex; flex-direction: column; align-items: center; justify-content: space-between; gap: .75rem; }
@media (min-width: 768px) { .footer-bottom { flex-direction: row; } }
.footer-bottom p { font-size: .8125rem; color: rgba(255, 255, 255, .55); }
.friend-links { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.friend-links a { font-size: .8125rem; color: rgba(255, 255, 255, .55); transition: color .2s; }
.friend-links a:hover { color: var(--accent-400); }

/* ===== Focus ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(20, 184, 166, .3); }

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .brand-name { font-size: 1.0625rem; }
  .header-actions { width: 100%; }
  .search-form { max-width: none; }
  .banner-content h1 { font-size: 1.75rem; }
  .banner-subtitle { font-size: .9375rem; }
  .stat-card .stat-num { font-size: 1.75rem; }
  .cta-card { padding: 1.5rem 1.25rem; }
  .content-block .section-title { font-size: 1.5rem; }
}