/* roulang page: index */
:root {
            --primary: #1B4D3E;
            --primary-dark: #0F241D;
            --primary-light: #2A6E59;
            --secondary: #4E7C5D;
            --accent: #D4A373;
            --accent-hover: #BF8D5D;
            --bg-organic: #FAF9F6;
            --bg-card: #FFFFFF;
            --text-main: #111D15;
            --text-body: #2D3A32;
            --text-muted: #6E7C73;
            --border-light: #E7E5DF;
            --border-subtle: #F0EFE9;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-pill: 9999px;
            --shadow-subtle: 0 4px 20px -2px rgba(27, 77, 62, 0.05);
            --shadow-card: 0 10px 30px -5px rgba(27, 77, 62, 0.08);
            --shadow-hover: 0 20px 35px -8px rgba(27, 77, 62, 0.14);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            --container-max: 1240px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg-organic);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
            padding-bottom: 72px;
        }

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

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

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

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 顶部导航与功能条 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(250, 249, 246, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .header-topbar {
            background-color: var(--primary-dark);
            color: #E2E8F0;
            font-size: 0.85rem;
            padding: 8px 0;
        }

        .topbar-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .topbar-info {
            display: flex;
            gap: 24px;
        }

        .topbar-info span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #FFF;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }

        .main-menu {
            display: flex;
            list-style: none;
            gap: 28px;
            align-items: center;
        }

        .main-menu a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 6px 0;
        }

        .main-menu a:hover, .main-menu a.active {
            color: var(--primary);
        }

        .main-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }

        .main-menu a:hover::after {
            width: 100%;
        }

        .btn-nav-cta {
            background-color: var(--accent);
            color: #FFFFFF;
            padding: 9px 22px;
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(212, 163, 115, 0.35);
        }

        .btn-nav-cta:hover {
            background-color: var(--accent-hover);
            transform: translateY(-1px);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: var(--primary);
        }

        /* 统一标题与排版规则 */
        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 56px;
        }

        .section-badge {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(78, 124, 93, 0.12);
            color: var(--secondary);
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 2.15rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.35;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .section-padding {
            padding: 96px 0;
        }

        .section-bg-white {
            background-color: #FFFFFF;
        }

        .section-bg-subtle {
            background-color: #F4F3EE;
        }

        /* 1. 首屏转化区 (Hero) */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, rgba(27, 77, 62, 0.05) 0%, rgba(212, 163, 115, 0.08) 100%), #FAF9F6;
            padding: 90px 0 100px;
            overflow: hidden;
            border-bottom: 1px solid var(--border-light);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 56px;
            align-items: center;
        }

        .hero-badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(27, 77, 62, 0.1);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: 3rem;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-title span {
            color: var(--primary);
            position: relative;
        }

        .hero-intro {
            font-size: 1.15rem;
            color: var(--text-body);
            margin-bottom: 30px;
            line-height: 1.85;
        }

        .hero-highlights {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px 20px;
            margin-bottom: 36px;
        }

        .hero-highlights li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-body);
            font-weight: 500;
        }

        .hero-highlights svg {
            width: 18px;
            height: 18px;
            fill: var(--primary);
            flex-shrink: 0;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 18px;
            margin-bottom: 40px;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 14px 34px;
            border-radius: var(--radius-pill);
            font-size: 1rem;
            font-weight: 600;
            box-shadow: 0 8px 24px -4px rgba(27, 77, 62, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px -4px rgba(27, 77, 62, 0.45);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            padding: 13px 28px;
            border-radius: var(--radius-pill);
            font-size: 1rem;
            font-weight: 600;
            border: 2px solid var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary:hover {
            background-color: rgba(27, 77, 62, 0.05);
            transform: translateY(-2px);
        }

        .hero-trust-bar {
            display: flex;
            align-items: center;
            gap: 24px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }

        .trust-item {
            display: flex;
            flex-direction: column;
        }

        .trust-item strong {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
        }

        .trust-item span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .hero-visual-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

        .hero-visual-card img {
            width: 100%;
            height: 480px;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .hero-floating-badge {
            position: absolute;
            bottom: 24px;
            left: 24px;
            right: 24px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            padding: 16px 20px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: var(--shadow-card);
        }

        .floating-badge-icon {
            width: 44px;
            height: 44px;
            background: var(--accent);
            color: #FFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            flex-shrink: 0;
        }

        /* 2. 痛点洞察板块 (Pain Points) */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .pain-card {
            background: var(--bg-card);
            padding: 32px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .pain-tag {
            font-size: 0.8rem;
            color: #C05621;
            background: #FEEBC8;
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 14px;
        }

        .pain-card h3 {
            font-size: 1.2rem;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .pain-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 3. 核心卖点三连 (Solutions / Key Pillars) */
        .pillars-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .pillar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 40px 32px;
            box-shadow: var(--shadow-subtle);
            border: 1px solid var(--border-light);
            position: relative;
            transition: var(--transition);
        }

        .pillar-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }

        .pillar-num {
            font-size: 2.8rem;
            font-weight: 800;
            color: rgba(27, 77, 62, 0.12);
            line-height: 1;
            margin-bottom: 12px;
        }

        .pillar-card h3 {
            font-size: 1.35rem;
            color: var(--primary);
            margin-bottom: 14px;
        }

        .pillar-card p {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .pillar-features {
            list-style: none;
            border-top: 1px solid var(--border-subtle);
            padding-top: 16px;
        }

        .pillar-features li {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .pillar-features li::before {
            content: "•";
            color:var(--accent);
            font-size: 1.2rem;
            font-weight: bold;
        }

        /* 4. 品牌与科研背景介绍 */
        .bio-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .bio-image-wrapper {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .bio-image-wrapper img {
            width: 100%;
            height: 440px;
            object-fit: cover;
        }

        .bio-badge {
            position: absolute;
            top: 24px;
            right: 24px;
            background: rgba(15, 36, 29, 0.88);
            backdrop-filter: blur(6px);
            color: #FFF;
            padding: 12px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            line-height: 1.4;
        }

        .bio-badge strong {
            display: block;
            font-size: 1.1rem;
            color: var(--accent);
        }

        .bio-content h2 {
            font-size: 2.15rem;
            color: var(--text-main);
            margin-bottom: 20px;
            line-height: 1.35;
        }

        .bio-content p {
            font-size: 1rem;
            color: var(--text-body);
            margin-bottom: 18px;
            line-height: 1.85;
        }

        .cert-metric-box {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 28px;
            padding: 20px;
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
        }

        .cert-metric-item h4 {
            font-size: 0.95rem;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .cert-metric-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* 5. 核心优势多维矩阵 (6宫格) */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .matrix-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: var(--transition);
        }

        .matrix-card:hover {
            border-color: var(--secondary);
            transform: translateY(-5px);
            box-shadow: var(--shadow-card);
        }

        .matrix-icon {
            width: 48px;
            height: 48px;
            background: rgba(78, 124, 93, 0.12);
            color: var(--secondary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 20px;
        }

        .matrix-card h3 {
            font-size: 1.25rem;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .matrix-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* 6. 热门营养健康产品专区 */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .product-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .product-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }

        .product-img-box {
            position: relative;
            height: 240px;
            overflow: hidden;
        }

        .product-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .product-card:hover .product-img-box img {
            transform: scale(1.05);
        }

        .product-badge-flag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: #FFFFFF;
            font-size: 0.78rem;
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: 600;
        }

        .product-body {
            padding: 28px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .product-tags {
            display: flex;
            gap: 8px;
            margin-bottom: 14px;
            flex-wrap: wrap;
        }

        .product-tags span {
            font-size: 0.78rem;
            background: var(--bg-organic);
            color: var(--secondary);
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border-light);
        }

        .product-body h3 {
            font-size: 1.3rem;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .product-desc {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.7;
            flex-grow: 1;
        }

        .product-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-subtle);
            padding-top: 18px;
        }

        .product-spec {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .btn-card-action {
            display: inline-flex;
            align-items: center;
            font-size: 0.88rem;
            color: var(--primary);
            font-weight: 600;
        }

        .btn-card-action:hover {
            color: var(--accent);
            transform: translateX(3px);
        }

        /* 7. 深色哲学沉浸区 */
        .dark-philosophy-section {
            background-color: var(--primary-dark);
            color: #FAF9F6;
            padding: 100px 0;
            position: relative;
            background-image: radial-gradient(rgba(78, 124, 93, 0.25) 1px, transparent 1px);
            background-size: 28px 28px;
        }

        .philosophy-wrapper {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
        }

        .philosophy-quote-symbol {
            font-size: 4rem;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 16px;
            opacity: 0.8;
        }

        .philosophy-title {
            font-size: 2.35rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 24px;
            line-height: 1.4;
        }

        .philosophy-desc {
            font-size: 1.15rem;
            color: #CAD5CF;
            line-height: 2;
            margin-bottom: 40px;
        }

        .philosophy-pillars {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 36px;
            text-align: left;
        }

        .philosophy-box {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px;
            border-radius: var(--radius-md);
        }

        .philosophy-box h4 {
            font-size: 1.1rem;
            color: var(--accent);
            margin-bottom: 8px;
        }

        .philosophy-box p {
            font-size: 0.88rem;
            color: #9FB2A8;
            line-height: 1.6;
        }

        /* 8. 多维生活场景与应用演示 */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .scenario-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
            transition: var(--transition);
        }

        .scenario-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .scenario-img-container {
            height: 200px;
            overflow: hidden;
        }

        .scenario-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .scenario-info {
            padding: 28px;
        }

        .scenario-info h3 {
            font-size: 1.25rem;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .scenario-info p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .scenario-solution {
            background: var(--bg-organic);
            padding: 14px;
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--secondary);
            font-size: 0.85rem;
            color: var(--text-body);
        }

        /* 9. 关键数据与社会认同统计条 */
        .metrics-bar-section {
            background: var(--primary);
            color: #FFF;
            padding: 64px 0;
        }

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

        .metric-stat-item {
            padding: 0 16px;
            border-right: 1px solid rgba(255, 255, 255, 0.15);
        }

        .metric-stat-item:last-child {
            border-right: none;
        }

        .metric-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .metric-sub {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* 10. 对比差异表 (科学定制 vs 传统单一) */
        .comparison-table-wrapper {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .table-responsive {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        .table-responsive th, .table-responsive td {
            padding: 20px 24px;
            border-bottom: 1px solid var(--border-light);
        }

        .table-responsive th {
            background: #F8F7F3;
            font-size: 1.05rem;
            color: var(--text-main);
            font-weight: 700;
        }

        .table-responsive th.highlight-col {
            background: rgba(27, 77, 62, 0.08);
            color: var(--primary);
        }

        .table-responsive td.highlight-col {
            background: rgba(27, 77, 62, 0.02);
            font-weight: 600;
            color: var(--primary);
        }

        .table-responsive tr:last-child td {
            border-bottom: none;
        }

        .status-badge-win {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
        }

        .status-badge-lose {
            color: #A0AEC0;
        }

        /* 11. 真实案例与蜕变故事 */
        .case-stories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 36px;
        }

        .case-story-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
        }

        .case-story-header {
            display: flex;
            gap: 20px;
            padding: 28px 28px 18px;
            align-items: center;
        }

        .case-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid var(--accent);
        }

        .case-profile h3 {
            font-size: 1.2rem;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .case-profile span {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: block;
        }

        .case-profile .badge-label {
            display: inline-block;
            background: rgba(78, 124, 93, 0.1);
            color: var(--secondary);
            font-size: 0.75rem;
            padding: 2px 8px;
            border-radius: 4px;
            margin-top: 6px;
        }

        .case-body {
            padding: 0 28px 24px;
            flex-grow: 1;
        }

        .case-feedback {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.8;
            font-style: italic;
            margin-bottom: 20px;
        }

        .case-dietitian-note {
            background: var(--bg-organic);
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--accent);
            font-size: 0.88rem;
            color: var(--text-body);
        }

        .case-dietitian-note strong {
            color: var(--accent);
            display: block;
            margin-bottom: 4px;
        }

        /* 12. 客户口碑评价轮播/网格 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testi-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
            position: relative;
        }

        .testi-stars {
            color: #ECC94B;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }

        .testi-card p {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 24px;
        }

        .testi-user {
            display: flex;
            align-items: center;
            gap: 14px;
            border-top: 1px solid var(--border-subtle);
            padding-top: 16px;
        }

        .testi-user-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
        }

        .testi-user-meta h4 {
            font-size: 0.95rem;
            color: var(--text-main);
        }

        .testi-user-meta span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 13. 前沿资讯与循证动态 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-card);
        }

        .news-thumb {
            height: 200px;
            overflow: hidden;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-content {
            padding: 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-content h3 {
            font-size: 1.2rem;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.45;
        }

        .news-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 18px;
            flex-grow: 1;
        }

        .news-read-more {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        /* 14. 科学答疑与异议拆解 (Accordion) */
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .accordion-item:hover {
            border-color: var(--secondary);
        }

        .accordion-header {
            width: 100%;
            padding: 22px 26px;
            background: none;
            border: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            text-align: left;
            cursor: pointer;
            font-size: 1.08rem;
            font-weight: 600;
            color: var(--text-main);
        }

        .accordion-icon {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

        .accordion-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background: #FCFCFA;
            padding: 0 26px;
        }

        .accordion-item.active .accordion-body {
            max-height: 300px;
            padding: 0 26px 22px 26px;
            border-top: 1px solid var(--border-subtle);
        }

        .accordion-item.active .accordion-icon {
            transform: rotate(45deg);
        }

        .accordion-body p {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.8;
            margin-top: 16px;
        }

        /* 15. 全流程品质服务保障条 */
        .guarantee-section {
            background: #FFFFFF;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 56px 0;
        }

        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .guarantee-icon {
            width: 50px;
            height: 50px;
            background: rgba(27, 77, 62, 0.08);
            color: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }

        .guarantee-text h4 {
            font-size: 1.05rem;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .guarantee-text p {
            font-size: 0.84rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.45;
        }

        /* 16. 底部转化表单区 */
        .cta-form-section {
            background: linear-gradient(135deg, rgba(27, 77, 62, 0.95), rgba(15, 36, 29, 0.98)), url('/assets/images/8350c036c490347b.webp') center/cover;
            color: #FFFFFF;
            padding: 96px 0;
            position: relative;
        }

        .cta-content-box {
            max-width: 860px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(10px);
            padding: 48px;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: var(--shadow-hover);
        }

        .cta-content-box h2 {
            font-size: 2.25rem;
            text-align: center;
            margin-bottom: 14px;
            color: #FFFFFF;
        }

        .cta-content-box p {
            text-align: center;
            font-size: 1.05rem;
            color: #D1DED7;
            margin-bottom: 36px;
            line-height: 1.7;
        }

        .intake-form {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .form-group-full {
            grid-column: span 3;
        }

        .form-control {
            width: 100%;
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.95);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-sm);
            color: var(--text-main);
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(212, 163, 115, 0.3);
        }

        .btn-submit-cta {
            grid-column: span 3;
            background-color: var(--accent);
            color: #FFFFFF;
            font-size: 1.05rem;
            font-weight: 700;
            padding: 16px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 6px 20px rgba(212, 163, 115, 0.4);
            margin-top: 8px;
        }

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

        .form-disclaimer {
            grid-column: span 3;
            text-align: center;
            font-size: 0.8rem;
            color: #A3B8AD;
            margin-top: 10px;
        }

        /* 页脚规范 */
        .site-footer {
            background: var(--primary-dark);
            color: #CAD5CF;
            padding: 72px 0 36px;
            font-size: 0.92rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 56px;
        }

        .footer-brand h3 {
            font-size: 1.4rem;
            color: #FFF;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .footer-brand p {
            line-height: 1.8;
            color: #9FB2A8;
            margin-bottom: 20px;
        }

        .footer-col h4 {
            font-size: 1.05rem;
            color: #FFF;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact-item {
            margin-bottom: 14px;
            line-height: 1.6;
        }

        .footer-contact-item strong {
            display: block;
            color: #FFF;
            font-size: 0.85rem;
        }

        .footer-bottom {
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: #7B8F84;
        }

        /* 视口底部常驻微型悬浮转化条 */
        .floating-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            border-top: 1px solid var(--border-light);
            padding: 12px 0;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
        }

        .floating-bar-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .floating-bar-meta {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .floating-bar-meta strong {
            font-size: 1.05rem;
            color: var(--primary);
        }

        .floating-bar-meta span {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        .floating-bar-actions {
            display: flex;
            gap: 12px;
        }

        /* 响应式断点控制 */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-visual-card img {
                height: 380px;
            }
            .bio-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .matrix-grid, .product-grid, .scenarios-grid, .testimonials-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .pillars-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                row-gap: 32px;
            }
            .metric-stat-item:nth-child(2) {
                border-right: none;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .intake-form {
                grid-template-columns: 1fr 1fr;
            }
            .form-group-full, .btn-submit-cta, .form-disclaimer {
                grid-column: span 2;
            }
        }

        @media (max-width: 768px) {
            .top-utility-bar {
                display: none;
            }
            .header-main {
                padding: 14px 0;
            }
            .nav-menu-desktop {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .btn-nav-cta {
                display: none;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .section {
                padding: 56px 0;
            }
            .pain-points-grid, .matrix-grid, .product-grid, .scenarios-grid, .case-stories-grid, .testimonials-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .metric-stat-item {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.15);
                padding-bottom: 20px;
            }
            .metric-stat-item:last-child {
                border-bottom: none;
                padding-bottom: 0;
            }
            .philosophy-pillars {
                grid-template-columns: 1fr;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .intake-form {
                grid-template-columns: 1fr;
            }
            .form-group-full, .btn-submit-cta, .form-disclaimer {
                grid-column: span 1;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }
            .floating-bar-meta {
                display: none;
            }
            .floating-bottom-bar {
                padding: 10px 0;
            }
            .floating-bar-actions {
                width: 100%;
                justify-content: stretch;
            }
            .floating-bar-actions .btn {
                flex: 1;
                text-align: center;
                padding: 10px 14px;
                font-size: 0.88rem;
            }
        }