/* roulang page: index */
:root {
      --primary: #0F4C3A;
      --primary-dark: #0A261E;
      --primary-light: #18634D;
      --accent: #E88D38;
      --accent-hover: #D47B28;
      --bg-page: #F8FAF9;
      --bg-card: #FFFFFF;
      --text-main: #1A2421;
      --text-body: #4A5552;
      --text-muted: #86918E;
      --border-color: #E2E8E5;
      --border-focus: #0F4C3A;
      --shadow-sm: 0 4px 14px rgba(15, 76, 58, 0.04);
      --shadow-md: 0 8px 24px rgba(15, 76, 58, 0.08);
      --shadow-lg: 0 16px 36px rgba(15, 76, 58, 0.12);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-pill: 9999px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-body);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部服务栏与导航 */
    .header-top {
      background-color: #0d1e18;
      color: #9ab4aa;
      font-size: 0.825rem;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .header-top .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }
    .pulse-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      background-color: #38e88d;
      border-radius: 50%;
      margin-right: 6px;
      box-shadow: 0 0 0 0 rgba(56, 232, 141, 0.7);
      animation: pulse-ring 2s infinite;
    }
    @keyframes pulse-ring {
      0% { box-shadow: 0 0 0 0 rgba(56, 232, 141, 0.7); }
      70% { box-shadow: 0 0 0 6px rgba(56, 232, 141, 0); }
      100% { box-shadow: 0 0 0 0 rgba(56, 232, 141, 0); }
    }

    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-wrapper {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.01em;
    }
    .logo-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
    }
    .logo-icon svg {
      width: 22px;
      height: 22px;
      fill: currentColor;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .nav-link {
      font-weight: 500;
      color: var(--text-main);
      font-size: 0.95rem;
      position: relative;
    }
    .nav-link:hover {
      color: var(--primary);
    }
    .nav-link.active {
      color: var(--primary);
      font-weight: 600;
    }
    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--primary);
      border-radius: 2px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 11px 24px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--accent);
      color: #FFFFFF;
      box-shadow: 0 4px 12px rgba(232, 141, 56, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--accent-hover);
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(232, 141, 56, 0.35);
    }
    .btn-secondary {
      background-color: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }
    .btn-secondary:hover {
      background-color: rgba(15, 76, 58, 0.05);
    }
    .btn-white {
      background-color: #FFFFFF;
      color: var(--primary);
    }
    .btn-white:hover {
      background-color: #F0F4F2;
    }

    /* 板块排版通用 */
    .section-spacing {
      padding: 84px 0;
    }
    .section-spacing-alt {
      background-color: #F0F4F2;
    }
    .section-header {
      margin-bottom: 48px;
      text-align: center;
    }
    .section-header.text-left {
      text-align: left;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background-color: rgba(15, 76, 58, 0.08);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 600;
      border-radius: var(--radius-pill);
      margin-bottom: 14px;
      letter-spacing: 0.02em;
    }
    .section-title {
      font-size: 2rem;
      line-height: 1.3;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.02em;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-body);
      max-width: 680px;
      margin: 0 auto;
      line-height: 1.7;
    }
    .section-header.text-left .section-desc {
      margin-left: 0;
    }

    /* 1. 首屏试用申请 (Hero / #hero) */
    .hero-trial-section {
      position: relative;
      background: linear-gradient(rgba(10, 38, 30, 0.88), rgba(10, 38, 30, 0.92)), url('/assets/images/00176e404f17a833.jpg') center/cover no-repeat;
      color: #FFFFFF;
      padding: 80px 0 96px;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 2.75rem;
      line-height: 1.25;
      font-weight: 800;
      margin-bottom: 20px;
      letter-spacing: -0.02em;
      color: #FFFFFF;
    }
    .hero-content h1 span {
      color: var(--accent);
    }
    .hero-content p.hero-lead {
      font-size: 1.125rem;
      line-height: 1.8;
      color: #D2DFDB;
      margin-bottom: 32px;
    }
    .hero-badges-row {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 32px;
    }
    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background-color: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-pill);
      font-size: 0.85rem;
      color: #E2ECE9;
    }
    .hero-badge-pill svg {
      width: 14px;
      height: 14px;
      fill: var(--accent);
    }
    .hero-trial-card {
      background-color: #FFFFFF;
      color: var(--text-main);
      padding: 36px;
      border-radius: var(--radius-md);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
    }
    .trial-card-title {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .trial-card-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-bottom: 22px;
    }
    .trial-form-group {
      margin-bottom: 16px;
    }
    .trial-form-label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .trial-input, .trial-select {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      background-color: #FBFDFD;
      color: var(--text-main);
      transition: var(--transition);
    }
    .trial-input:focus, .trial-select:focus {
      outline: none;
      border-color: var(--primary);
      background-color: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(15, 76, 58, 0.1);
    }
    .trial-note {
      font-size: 0.775rem;
      color: var(--text-muted);
      margin-top: 14px;
      text-align: center;
      line-height: 1.5;
    }

    /* 2. 分类入口墙 (Categories / #categories) */
    .cat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .cat-card {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .cat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(15, 76, 58, 0.25);
    }
    .cat-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(15, 76, 58, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }
    .cat-icon-box svg {
      width: 24px;
      height: 24px;
      fill: currentColor;
    }
    .cat-title {
      font-size: 1.18rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .cat-desc {
      font-size: 0.9rem;
      color: var(--text-body);
      margin-bottom: 18px;
      line-height: 1.6;
    }
    .cat-meta-tag {
      font-size: 0.8rem;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 3. 核心优势矩阵 (Strengths / #strengths) */
    .bento-strengths-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .strength-card {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .strength-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-3px);
    }
    .strength-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .strength-subtitle {
      display: block;
      font-size: 0.85rem;
      color: var(--accent);
      font-weight: 600;
      margin-bottom: 14px;
    }
    .strength-points {
      list-style: none;
      font-size: 0.9rem;
      color: var(--text-body);
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .strength-points li {
      position: relative;
      padding-left: 18px;
    }
    .strength-points li::before {
      content: '✔';
      position: absolute;
      left: 0;
      color: var(--primary);
      font-size: 0.85rem;
    }

    /* 4. 精选推荐对比产品 (Products / #products) */
    .product-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      align-items: stretch;
    }
    .product-plan-card {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      position: relative;
      transition: var(--transition);
    }
    .product-plan-card.featured {
      border: 2px solid var(--accent);
      box-shadow: var(--shadow-lg);
      transform: scale(1.03);
      z-index: 2;
    }
    .featured-ribbon {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--accent);
      color: #FFFFFF;
      font-size: 0.8rem;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: var(--radius-pill);
      letter-spacing: 0.05em;
    }
    .plan-header {
      margin-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 20px;
    }
    .plan-name {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .plan-target {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .plan-time-tag {
      margin-top: 12px;
      display: inline-block;
      font-size: 0.8rem;
      background-color: rgba(15, 76, 58, 0.08);
      color: var(--primary);
      padding: 3px 10px;
      border-radius: 4px;
      font-weight: 600;
    }
    .plan-features-list {
      list-style: none;
      margin-bottom: 30px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 0.925rem;
    }
    .plan-features-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--text-body);
    }
    .plan-features-list svg {
      width: 18px;
      height: 18px;
      fill: var(--primary);
      flex-shrink: 0;
      margin-top: 3px;
    }

    /* 5. 深色决策实验室沉浸区 (Demo Lab / #demo) */
    .lab-section {
      background-color: var(--primary-dark);
      color: #E2ECE9;
      position: relative;
      overflow: hidden;
    }
    .lab-section .section-title {
      color: #FFFFFF;
    }
    .lab-section .section-desc {
      color: #9BB0A8;
    }
    .lab-pipeline-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      position: relative;
    }
    .pipeline-step-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      position: relative;
    }
    .step-number {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 16px;
      opacity: 0.9;
    }
    .step-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 12px;
    }
    .step-desc {
      font-size: 0.9rem;
      line-height: 1.7;
      color: #A3B7B0;
      margin-bottom: 18px;
    }
    .step-metric-tag {
      background: rgba(15, 76, 58, 0.4);
      border-left: 3px solid var(--accent);
      padding: 8px 12px;
      border-radius: 4px;
      font-size: 0.8rem;
      color: #D2DFDB;
      font-family: monospace;
    }

    /* 6. 置业决策排行榜 (Rankings / #rankings) */
    .ranking-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .ranking-box {
      background-color: var(--bg-card);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .ranking-header-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 2px solid rgba(15, 76, 58, 0.1);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .ranking-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.925rem;
    }
    .ranking-table th {
      text-align: left;
      padding: 10px 12px;
      color: var(--text-muted);
      font-weight: 600;
      border-bottom: 1px solid var(--border-color);
    }
    .ranking-table td {
      padding: 14px 12px;
      border-bottom: 1px solid var(--border-color);
      color: var(--text-main);
    }
    .ranking-table tr:last-child td {
      border-bottom: none;
    }
    .rank-num {
      display: inline-flex;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: var(--bg-page);
      color: var(--text-body);
      font-weight: 700;
      font-size: 0.75rem;
      align-items: center;
      justify-content: center;
    }
    .rank-num.top-1 { background-color: #E88D38; color: #FFFFFF; }
    .rank-num.top-2 { background-color: #0F4C3A; color: #FFFFFF; }
    .rank-num.top-3 { background-color: #55796E; color: #FFFFFF; }
    .index-val {
      font-weight: 700;
      color: var(--accent);
    }

    /* 7. 真实用户置业案例 (Case Stories / #cases) */
    .case-story-card {
      background-color: var(--bg-card);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      margin-bottom: 36px;
      display: grid;
      grid-template-columns: 1fr 1.25fr;
    }
    .case-story-card.reverse {
      grid-template-columns: 1.25fr 1fr;
    }
    .case-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-content-box {
      padding: 40px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .case-profile-tag {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 10px;
    }
    .case-title {
      font-size: 1.45rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }
    .case-contrast-block {
      background-color: var(--bg-page);
      border-radius: var(--radius-sm);
      padding: 16px;
      margin-bottom: 20px;
      font-size: 0.875rem;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .contrast-item {
      display: flex;
      gap: 8px;
    }
    .contrast-label {
      font-weight: 600;
      color: var(--primary);
      flex-shrink: 0;
    }
    .case-summary {
      font-size: 0.925rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 8. 楼市与选房算法动态 (Insights / #insights) */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .insight-card {
      background-color: var(--bg-card);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .insight-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .insight-thumb {
      height: 180px;
      overflow: hidden;
    }
    .insight-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .insight-card:hover .insight-thumb img {
      transform: scale(1.05);
    }
    .insight-info {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .insight-date {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .insight-headline {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.45;
    }
    .insight-abstract {
      font-size: 0.875rem;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 20px;
    }
    .insight-link {
      font-size: 0.875rem;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 9. 关键数据指标通栏 (Metrics / #metrics) */
    .metrics-bar-section {
      background-color: var(--primary);
      color: #FFFFFF;
      padding: 60px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .metric-item {
      border-right: 1px solid rgba(255, 255, 255, 0.15);
      padding: 0 16px;
    }
    .metric-item:last-child {
      border-right: none;
    }
    .metric-number {
      font-size: 2.6rem;
      font-weight: 800;
      line-height: 1.2;
      color: var(--accent);
      margin-bottom: 8px;
      font-family: monospace;
    }
    .metric-label {
      font-size: 1rem;
      font-weight: 600;
      margin-bottom: 4px;
    }
    .metric-sub {
      font-size: 0.8rem;
      color: #C3D6CF;
    }

    /* 10. 高保真用户反馈 (Reviews / #reviews) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-stars {
      color: var(--accent);
      margin-bottom: 14px;
      font-size: 0.95rem;
      letter-spacing: 2px;
    }
    .review-text {
      font-size: 0.925rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .review-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background-color: rgba(15, 76, 58, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
    }
    .review-author-info h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .review-author-info p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 11. 合作与数据接入体系 (Partners / #partners) */
    .partners-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 20px;
      align-items: center;
    }
    .partner-node {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 20px 14px;
      text-align: center;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-body);
      box-shadow: var(--shadow-sm);
    }

    /* 12. 异议拆解手风琴 (FAQ / #faq) */
    .faq-container {
      max-width: 820px;
      margin: 0 auto;
    }
    .faq-item {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
      overflow: hidden;
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: none;
      border: none;
      width: 100%;
      text-align: left;
    }
    .faq-icon {
      font-size: 1.25rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      padding: 0 24px 20px 24px;
      font-size: 0.925rem;
      color: var(--text-body);
      line-height: 1.75;
      display: none;
    }
    .faq-item.active .faq-answer {
      display: block;
    }

    /* 13. 安心选房保障公约 (Guarantees / #guarantee) */
    .guarantees-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-badge-box {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }
    .guarantee-icon {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background-color: rgba(232, 141, 56, 0.1);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
    }
    .guarantee-icon svg {
      width: 26px;
      height: 26px;
      fill: currentColor;
    }
    .guarantee-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .guarantee-text {
      font-size: 0.85rem;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 14. 试用与收口行动区 (Final CTA / #cta) */
    .cta-card-box {
      background: linear-gradient(135deg, var(--primary), #0a3327);
      border-radius: var(--radius-md);
      padding: 60px 48px;
      color: #FFFFFF;
      box-shadow: var(--shadow-lg);
      position: relative;
      overflow: hidden;
    }
    .cta-grid-inner {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .cta-title {
      font-size: 2.1rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .cta-lead {
      font-size: 1rem;
      color: #D2DFDB;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .cta-form-inline {
      display: flex;
      gap: 12px;
    }
    .cta-input-control {
      flex-grow: 1;
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      font-size: 0.95rem;
      background-color: rgba(255, 255, 255, 0.95);
      color: var(--text-main);
    }
    .cta-input-control:focus {
      outline: none;
      box-shadow: 0 0 0 3px rgba(232, 141, 56, 0.4);
    }

    /* 页脚 */
    footer.site-footer {
      background-color: var(--primary-dark);
      color: #A3B7B0;
      padding: 72px 0 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.9rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-brand h3 {
      font-size: 1.35rem;
      color: #FFFFFF;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 18px;
      font-size: 0.875rem;
    }
    .footer-col-title {
      font-size: 1rem;
      color: #FFFFFF;
      font-weight: 600;
      margin-bottom: 18px;
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.875rem;
    }
    .footer-links-list a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.8rem;
    }

    /* 移动端快捷呼起条 */
    .mobile-dock {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(8px);
      padding: 10px 16px;
      border-top: 1px solid var(--border-color);
      box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
      z-index: 999;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
    }
    .mobile-dock-btn {
      flex: 1;
      padding: 12px;
      text-align: center;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      font-weight: 600;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .cta-grid-inner {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .bento-strengths-grid, .product-cards-grid, .lab-pipeline-grid, .insights-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cat-grid, .guarantees-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .partners-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .product-plan-card.featured {
        transform: none;
      }
    }

    @media (max-width: 768px) {
      .header-top {
        display: none;
      }
      .main-nav {
        display: none;
      }
      .hero-content h1 {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.6rem;
      }
      .ranking-grid {
        grid-template-columns: 1fr;
      }
      .case-story-card, .case-story-card.reverse {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }
      .metric-item {
        border-right: none;
      }
      .bento-strengths-grid, .product-cards-grid, .lab-pipeline-grid, .insights-grid, .reviews-grid, .cat-grid, .guarantees-grid {
        grid-template-columns: 1fr;
      }
      .partners-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .cta-card-box {
        padding: 36px 24px;
      }
      .cta-form-inline {
        flex-direction: column;
      }
      .mobile-dock {
        display: flex;
      }
      body {
        padding-bottom: 64px;
      }
    }