/* roulang page: index */
:root {
      --primary: #0F52BA;
      --primary-hover: #0c4296;
      --accent: #0284C7;
      --accent-gold: #D97706;
      --bg-main: #F8FAFC;
      --bg-alt: #F1F5F9;
      --bg-card: #FFFFFF;
      --bg-dark: #0B132B;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: rgba(226, 232, 240, 0.9);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-base: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.03);
      --shadow-hover: 0 20px 25px -5px rgba(15, 82, 186, 0.09), 0 8px 10px -6px rgba(15, 82, 186, 0.04);
      --transition: all 0.28s ease-in-out;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-stack);
      background-color: var(--bg-main);
      color: var(--text-body);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

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

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部服务信任条 */
    .top-bar {
      background: #0f1c3f;
      color: #94A3B8;
      font-size: 13px;
      height: 38px;
      display: flex;
      align-items: center;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-left, .top-bar-right {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #38BDF8;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10B981;
      box-shadow: 0 0 8px #10B981;
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 8px rgba(15, 23, 42, 0.03);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .logo-mark {
      width: 42px;
      height: 42px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 18px;
      letter-spacing: -0.5px;
    }
    .logo-text {
      display: flex;
      flex-direction: column;
    }
    .logo-title {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.2px;
    }
    .logo-sub {
      font-size: 11px;
      color: var(--text-muted);
      letter-spacing: 0.5px;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 24px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-body);
      position: relative;
      padding: 8px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }
    .nav-link:hover::after {
      width: 100%;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 26px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 4px 14px rgba(15, 82, 186, 0.25);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 6px 20px rgba(15, 82, 186, 0.35);
      transform: translateY(-1px);
    }
    .btn-secondary {
      background: #FFFFFF;
      color: var(--primary);
      border-color: rgba(15, 82, 186, 0.3);
    }
    .btn-secondary:hover {
      background: rgba(15, 82, 186, 0.05);
      border-color: var(--primary);
    }
    .btn-dark {
      background: #0B132B;
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .btn-dark:hover {
      background: #1C2541;
      border-color: rgba(255, 255, 255, 0.3);
    }
    .btn-accent {
      background: linear-gradient(135deg, #0284C7, #0F52BA);
      color: #fff;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .mobile-menu-btn span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 板块通用 */
    .section-wrap {
      padding: 96px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-alt);
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #E2E8F0;
    }
    .section-head {
      margin-bottom: 56px;
    }
    .section-head.text-center {
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: rgba(15, 82, 186, 0.08);
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 14px;
    }
    .section-dark .section-tag {
      color: #38BDF8;
      background: rgba(56, 189, 248, 0.12);
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 16px;
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* Hero：Before/After 并置对比 */
    .hero-section {
      padding: 80px 0 90px;
      background: radial-gradient(100% 80% at 50% 0%, #FFFFFF 0%, #EFF6FF 50%, #F8FAFC 100%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }
    .hero-header {
      text-align: center;
      max-width: 980px;
      margin: 0 auto 50px;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      background: #FFFFFF;
      padding: 6px 18px;
      border-radius: 30px;
      box-shadow: var(--shadow-base);
      border: 1px solid rgba(15, 82, 186, 0.15);
      margin-bottom: 20px;
    }
    .hero-badge span {
      background: #D97706;
      color: #fff;
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 12px;
      font-weight: 700;
    }
    .hero-title {
      font-size: 44px;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }
    .hero-desc {
      font-size: 17px;
      color: var(--text-body);
      max-width: 860px;
      margin: 0 auto 36px;
      line-height: 1.75;
    }
    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-bottom: 50px;
    }

    /* 并置对比卡片 (Before vs After) */
    .comparison-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      margin-top: 20px;
    }
    .compare-card {
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-base);
      border: 1px solid var(--border-color);
      position: relative;
      transition: var(--transition);
    }
    .compare-card:hover {
      box-shadow: var(--shadow-hover);
    }
    .compare-card.before {
      background: #FFFBFB;
      border-color: rgba(239, 68, 68, 0.2);
    }
    .compare-card.after {
      background: #F0FDF4;
      border-color: rgba(34, 197, 94, 0.3);
      position: relative;
    }
    .compare-card.after::before {
      content: "推荐升级形态";
      position: absolute;
      top: -14px;
      right: 30px;
      background: #16A34A;
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 20px;
      box-shadow: 0 4px 10px rgba(22, 163, 74, 0.2);
    }
    .compare-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
      padding-bottom: 16px;
      border-bottom: 1px dashed var(--border-color);
    }
    .compare-tag {
      font-size: 13px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 6px;
    }
    .before .compare-tag {
      background: #FEE2E2;
      color: #DC2626;
    }
    .after .compare-tag {
      background: #DCFCE7;
      color: #15803D;
    }
    .compare-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
    }
    .compare-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .compare-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 15px;
      line-height: 1.5;
    }
    .compare-icon {
      flex-shrink: 0;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: bold;
      margin-top: 1px;
    }
    .before .compare-icon {
      background: #FEE2E2;
      color: #DC2626;
    }
    .after .compare-icon {
      background: #DCFCE7;
      color: #16A34A;
    }

    /* 板块2：分类入口 */
    .category-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .category-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-base);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .category-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(15, 82, 186, 0.3);
    }
    .category-badge {
      align-self: flex-start;
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      background: #EFF6FF;
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 16px;
    }
    .category-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .category-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .card-link {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 板块3：基础设施与合规基座 (Overview) */
    .overview-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .overview-visual {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-hover);
      border: 1px solid var(--border-color);
    }
    .overview-visual img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .stat-floating-tag {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(15, 23, 42, 0.88);
      backdrop-filter: blur(8px);
      color: #fff;
      padding: 18px 24px;
      border-radius: var(--radius-md);
      font-size: 14px;
      line-height: 1.5;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .stat-floating-tag strong {
      color: #38BDF8;
    }
    .overview-content h3 {
      font-size: 26px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 18px;
      line-height: 1.35;
    }
    .overview-metrics-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 28px;
    }
    .metric-pill {
      background: #FFFFFF;
      padding: 16px;
      border-radius: var(--radius-sm);
      border-left: 4px solid var(--primary);
      box-shadow: var(--shadow-base);
    }
    .metric-pill .num {
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
      display: block;
      margin-bottom: 4px;
    }
    .metric-pill .lbl {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 板块4：核心优势六大壁垒 */
    .strengths-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .strength-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 32px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-base);
      transition: var(--transition);
      position: relative;
    }
    .strength-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(15, 82, 186, 0.35);
    }
    .strength-icon {
      width: 50px;
      height: 50px;
      border-radius: 12px;
      background: #EFF6FF;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: bold;
      margin-bottom: 20px;
    }
    .strength-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .strength-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块5：精选热门产品方案矩阵 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .solution-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-base);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .solution-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .solution-cover {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .solution-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .solution-card:hover .solution-cover img {
      transform: scale(1.05);
    }
    .solution-body {
      padding: 28px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .solution-badge {
      align-self: flex-start;
      font-size: 12px;
      font-weight: 700;
      color: #0284C7;
      background: #E0F2FE;
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .solution-body h3 {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .solution-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .spec-list {
      list-style: none;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
      margin-top: auto;
      margin-bottom: 20px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .spec-list li {
      font-size: 13px;
      color: var(--text-body);
      display: flex;
      justify-content: space-between;
    }
    .spec-list li span.val {
      font-weight: 600;
      color: var(--primary);
    }

    /* 板块6：深色对比架构引擎区 */
    .arch-container {
      background: #111D42;
      border-radius: var(--radius-lg);
      padding: 48px;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .arch-flow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 40px;
      position: relative;
    }
    .arch-node {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: left;
      transition: var(--transition);
    }
    .arch-node:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #38BDF8;
    }
    .node-num {
      display: inline-block;
      font-size: 12px;
      font-weight: 800;
      color: #38BDF8;
      background: rgba(56, 189, 248, 0.15);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .arch-node h4 {
      font-size: 17px;
      color: #fff;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .arch-node p {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.6;
    }

    /* 板块7：全球应用场景与用户故事演示 */
    .scenario-tabs {
      display: flex;
      flex-direction: column;
      gap: 40px;
    }
    .scenario-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      background: #fff;
      padding: 36px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-base);
    }
    .scenario-row.reverse {
      direction: rtl;
    }
    .scenario-row.reverse > * {
      direction: ltr;
    }
    .scenario-img {
      border-radius: var(--radius-md);
      overflow: hidden;
      height: 320px;
    }
    .scenario-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .scenario-info h3 {
      font-size: 24px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
    }
    .scenario-info p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .tag-group {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .tag-item {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      background: #EFF6FF;
      padding: 4px 12px;
      border-radius: 20px;
    }

    /* 板块8：关键业务数据统计条 */
    .stats-strip {
      background: linear-gradient(135deg, #0F52BA, #0369A1);
      color: #fff;
      padding: 60px 0;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .stat-box .number {
      font-size: 46px;
      font-weight: 900;
      letter-spacing: -1px;
      margin-bottom: 8px;
      display: block;
      color: #FFFFFF;
    }
    .stat-box .label {
      font-size: 15px;
      color: #BAE6FD;
      font-weight: 500;
    }

    /* 板块9：排行榜与权威基准 */
    .ranking-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .ranking-card {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-base);
    }
    .ranking-card h3 {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 2px solid #EFF6FF;
    }
    .rank-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .rank-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 14px;
    }
    .rank-item span.index {
      width: 24px;
      height: 24px;
      border-radius: 6px;
      background: #F1F5F9;
      color: var(--text-muted);
      font-weight: 700;
      font-size: 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-right: 10px;
    }
    .rank-item:nth-child(1) span.index {
      background: #FEF3C7;
      color: #D97706;
    }
    .rank-item:nth-child(2) span.index {
      background: #E2E8F0;
      color: #475569;
    }
    .rank-item:nth-child(3) span.index {
      background: #FFEDD5;
      color: #C2410C;
    }
    .rank-name {
      flex-grow: 1;
      font-weight: 600;
      color: var(--text-body);
    }
    .rank-score {
      font-weight: 700;
      color: var(--primary);
    }

    /* 板块10：合作生态与行业背书 */
    .partner-matrix {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
    }
    .partner-pill {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 10px 16px;
      text-align: center;
      font-weight: 700;
      color: var(--text-muted);
      font-size: 14px;
      transition: var(--transition);
      box-shadow: 0 1px 3px rgba(0,0,0,0.02);
    }
    .partner-pill:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
      box-shadow: var(--shadow-base);
    }

    /* 板块11：真实反馈口碑 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .testimonial-card {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 32px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-base);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .quote-icon {
      font-size: 32px;
      line-height: 1;
      color: #93C5FD;
      margin-bottom: 16px;
    }
    .testimonial-text {
      font-size: 15px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 24px;
      font-style: italic;
    }
    .client-info {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .client-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: var(--primary);
      font-size: 16px;
    }
    .client-details .name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .client-details .title {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块12：资讯与前沿证据区 */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .insight-card {
      background: #fff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-base);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .insight-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .insight-thumb {
      height: 180px;
      overflow: hidden;
    }
    .insight-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .insight-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .insight-meta {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 10px;
    }
    .insight-body h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.4;
      margin-bottom: 12px;
    }
    .insight-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    /* 板块13：保障条 (Guarantee Bar) */
    .guarantee-bar {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 48px 0;
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 28px;
    }
    .guarantee-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
    }
    .guarantee-item .g-icon {
      flex-shrink: 0;
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: #EFF6FF;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 800;
    }
    .guarantee-item h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .guarantee-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块14：试用接入与主行动区 (Action Form) */
    .action-cta-wrap {
      background: linear-gradient(135deg, #0B132B 0%, #172554 100%);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      color: #fff;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
      align-items: center;
      border: 1px solid rgba(255, 255, 255, 0.12);
    }
    .action-info h2 {
      font-size: 32px;
      font-weight: 900;
      line-height: 1.35;
      margin-bottom: 18px;
      color: #fff;
    }
    .action-info p {
      font-size: 16px;
      color: #94A3B8;
      line-height: 1.7;
      margin-bottom: 26px;
    }
    .action-form {
      background: #FFFFFF;
      padding: 32px;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      height: 44px;
      padding: 0 14px;
      border: 1px solid #CBD5E1;
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.15);
    }

    /* 底部固定转化条 */
    .floating-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 999;
      background: rgba(15, 23, 42, 0.94);
      backdrop-filter: blur(10px);
      padding: 12px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      transform: translateY(120%);
      transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .floating-bar.show {
      transform: translateY(0);
    }
    .floating-bar .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .floating-title {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .floating-title span {
      background: #D97706;
      color: #fff;
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 4px;
    }
    .floating-actions {
      display: flex;
      gap: 12px;
    }

    /* 全局页脚 */
    .site-footer {
      background: #070D1F;
      color: #94A3B8;
      padding: 80px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 60px;
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a {
      color: #94A3B8;
    }
    .footer-links a:hover {
      color: #38BDF8;
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .category-grid, .solutions-grid, .strengths-grid, .insights-grid, .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-flow-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .partner-matrix {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .comparison-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .main-nav {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
      }
      .main-nav.open {
        display: flex;
      }
      .header-cta-desktop {
        display: none;
      }
      .hero-title {
        font-size: 30px;
      }
      .section-wrap {
        padding: 60px 0;
      }
      .section-title {
        font-size: 26px;
      }
      .overview-layout, .scenario-row, .action-cta-wrap {
        grid-template-columns: 1fr;
      }
      .category-grid, .solutions-grid, .strengths-grid, .insights-grid, .testimonial-grid, .ranking-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid, .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .floating-title {
        display: none;
      }
      .floating-bar .container {
        justify-content: center;
      }
      .floating-actions {
        width: 100%;
      }
      .floating-actions .btn {
        flex: 1;
        height: 48px;
      }
    }