/* roulang page: index */
:root {
      --bg-dark: #0B0F17;
      --bg-card-dark: #131A26;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --brand-green: #0A5C4A;
      --brand-green-light: #0E7F67;
      --brand-green-pale: #E6F4F1;
      --amber-warn: #D97706;
      --amber-pale: #FEF3C7;
      --risk-red: #DC2626;
      --risk-pale: #FEE2E2;
      --text-main: #0F172A;
      --text-secondary: #475569;
      --text-light-main: #F1F5F9;
      --text-light-sub: #94A3B8;
      --border-light: #E2E8F0;
      --border-dark: #1E293B;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
      --shadow-md: 0 10px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
      --shadow-lg: 0 20px 30px -10px rgba(10,92,74,0.15);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      line-height: 1.75;
      color: var(--text-main);
      background-color: var(--bg-light);
      overflow-x: hidden;
    }

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

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部双行吸顶导航 */
    .header-fixed-wrap {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      box-shadow: var(--shadow-sm);
    }

    .top-utility-bar {
      background-color: var(--bg-dark);
      color: var(--text-light-sub);
      font-size: 13px;
      height: 36px;
      line-height: 36px;
      border-bottom: 1px solid var(--border-dark);
    }

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

    .top-badge-pulse {
      display: inline-block;
      width: 8px;
      height: 8px;
      background-color: #10B981;
      border-radius: 50%;
      margin-right: 6px;
      box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.25);
    }

    .top-utility-links {
      display: flex;
      gap: 20px;
    }

    .primary-nav-bar {
      height: 72px;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      display: flex;
      align-items: center;
    }

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

    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--brand-green), #0E7F67);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 700;
      font-size: 18px;
      letter-spacing: -1px;
    }

    .brand-logo-text {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      list-style: none;
      gap: 28px;
    }

    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-secondary);
      padding: 6px 0;
      position: relative;
    }

    .nav-links a:hover, .nav-links a.active {
      color: var(--brand-green);
    }

    .nav-links a::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--brand-green);
      transition: width 0.2s ease;
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    .nav-cta-btn {
      background-color: var(--brand-green);
      color: #FFFFFF !important;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      transition: var(--transition);
      display: inline-block;
    }

    .nav-cta-btn:hover {
      background-color: var(--brand-green-light);
      box-shadow: 0 4px 12px rgba(10, 92, 74, 0.25);
    }

    .menu-toggle {
      display: none;
      background: none;
      cursor: pointer;
      padding: 8px;
    }

    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--text-main);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 模块通用样式与间距 */
    section {
      padding: 88px 0;
      position: relative;
    }

    .section-dark {
      background-color: var(--bg-dark);
      color: var(--text-light-main);
    }

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

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

    .section-header {
      margin-bottom: 52px;
      max-width: 800px;
    }

    .section-header.text-center {
      text-align: center;
      margin-left: auto;
      margin-right: auto;
    }

    .section-subtitle-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      padding: 4px 12px;
      border-radius: 4px;
      margin-bottom: 14px;
    }

    .section-light .section-subtitle-tag, .section-white .section-subtitle-tag {
      background-color: var(--brand-green-pale);
      color: var(--brand-green);
    }

    .section-dark .section-subtitle-tag {
      background-color: rgba(14, 127, 103, 0.2);
      color: #34D399;
      border: 1px solid rgba(16, 185, 129, 0.2);
    }

    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.35;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-secondary);
    }

    .section-dark .section-desc {
      color: var(--text-light-sub);
    }

    /* 板块 1：Hero Banner */
    .hero-banner-sec {
      padding-top: 172px;
      padding-bottom: 96px;
      background: radial-gradient(circle at 85% 20%, rgba(10, 92, 74, 0.12) 0%, transparent 50%),
                  linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
      position: relative;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.25fr 0.95fr;
      gap: 48px;
      align-items: center;
    }

    .hero-title {
      font-size: 44px;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 22px;
      letter-spacing: -1px;
    }

    .hero-title span {
      color: var(--brand-green);
    }

    .hero-intro {
      font-size: 16px;
      line-height: 1.85;
      color: var(--text-secondary);
      margin-bottom: 34px;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }

    .btn-main {
      background-color: var(--brand-green);
      color: #FFF;
      padding: 14px 30px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
    }

    .btn-main:hover {
      background-color: var(--brand-green-light);
      box-shadow: 0 6px 20px rgba(10, 92, 74, 0.28);
    }

    .btn-outline {
      border: 1px solid var(--border-light);
      background: #FFF;
      color: var(--text-main);
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
    }

    .btn-outline:hover {
      border-color: var(--brand-green);
      color: var(--brand-green);
      background-color: var(--brand-green-pale);
    }

    .hero-live-ticker {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      padding-top: 24px;
      border-top: 1px solid var(--border-light);
    }

    .ticker-item h4 {
      font-size: 13px;
      color: var(--text-secondary);
      font-weight: 500;
      margin-bottom: 4px;
    }

    .ticker-val {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
    }

    .ticker-val.warn {
      color: var(--amber-warn);
    }

    .ticker-val.success {
      color: var(--brand-green);
    }

    .hero-stage-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-light);
      position: relative;
    }

    .stage-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 16px;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--border-light);
    }

    .stage-card-header h3 {
      font-size: 15px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .stage-badge {
      font-size: 12px;
      background: var(--risk-pale);
      color: var(--risk-red);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    .stage-img-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 16px;
      position: relative;
    }

    .stage-img-wrap img {
      width: 100%;
      height: 240px;
      object-fit: cover;
    }

    .stage-radar-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }

    .radar-list-item {
      background: var(--bg-light);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      font-size: 12px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 板块 2：品牌与体系 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }

    .intro-media-box {
      position: relative;
    }

    .intro-media-box img {
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    .intro-float-badge {
      position: absolute;
      bottom: 24px;
      right: 24px;
      background: rgba(11, 15, 23, 0.92);
      backdrop-filter: blur(8px);
      padding: 18px 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-dark);
      color: #FFF;
      box-shadow: var(--shadow-lg);
    }

    .intro-float-badge .num {
      font-size: 26px;
      font-weight: 800;
      color: #34D399;
      line-height: 1.2;
    }

    .intro-float-badge .lbl {
      font-size: 12px;
      color: var(--text-light-sub);
    }

    .intro-specs-list {
      margin-top: 28px;
      list-style: none;
    }

    .intro-specs-list li {
      padding: 14px 0;
      border-bottom: 1px solid var(--border-light);
      display: flex;
      align-items: flex-start;
      gap: 16px;
    }

    .spec-icon-check {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: var(--brand-green-pale);
      color: var(--brand-green);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: bold;
      flex-shrink: 0;
      margin-top: 3px;
    }

    /* 板块 3：核心优势 6宫格 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

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

    .feature-card:hover {
      transform: translateY(-4px);
      border-color: rgba(217, 119, 6, 0.45);
      box-shadow: 0 14px 28px rgba(0, 0, 0, 0.05);
    }

    .feature-icon-bubble {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: var(--brand-green-pale);
      color: var(--brand-green);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .feature-card h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* 板块 4：产品矩阵对比 3列 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      align-items: center;
    }

    .matrix-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      transition: var(--transition);
    }

    .matrix-card.featured {
      background: linear-gradient(180deg, #FFFFFF 0%, #F0FDF4 100%);
      border: 2px solid var(--brand-green);
      box-shadow: var(--shadow-lg);
      transform: scale(1.03);
      position: relative;
      z-index: 2;
    }

    .matrix-hot-tag {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--brand-green);
      color: #FFF;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 20px;
      letter-spacing: 0.5px;
    }

    .matrix-title {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .matrix-desc {
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 24px;
      min-height: 48px;
    }

    .matrix-latency-tag {
      font-size: 13px;
      font-weight: 600;
      color: var(--brand-green);
      background: var(--brand-green-pale);
      padding: 6px 12px;
      border-radius: var(--radius-sm);
      display: inline-block;
      margin-bottom: 24px;
    }

    .matrix-feature-list {
      list-style: none;
      margin-bottom: 32px;
    }

    .matrix-feature-list li {
      font-size: 14px;
      color: var(--text-secondary);
      padding: 8px 0;
      border-bottom: 1px dashed var(--border-light);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .matrix-feature-list li::before {
      content: "•";
      color: var(--brand-green);
      font-weight: bold;
      font-size: 18px;
    }

    .matrix-action-btn {
      display: block;
      width: 100%;
      text-align: center;
      padding: 12px 0;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
    }

    .matrix-card .matrix-action-btn {
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      color: var(--text-main);
    }

    .matrix-card.featured .matrix-action-btn {
      background: var(--brand-green);
      border: 1px solid var(--brand-green);
      color: #FFF;
    }

    /* 板块 5：深色合规与安全防护理念区 */
    .philosophy-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 48px;
    }

    .pipeline-step-card {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      position: relative;
    }

    .step-num-badge {
      font-size: 24px;
      font-weight: 800;
      color: #10B981;
      opacity: 0.8;
      margin-bottom: 12px;
    }

    .pipeline-step-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-light-main);
    }

    .pipeline-step-card p {
      font-size: 14px;
      color: var(--text-light-sub);
      line-height: 1.7;
    }

    /* 板块 6：交易场景应用 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

    .scenario-box {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .scenario-top-img {
      height: 180px;
      overflow: hidden;
    }

    .scenario-top-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .scenario-box:hover .scenario-top-img img {
      transform: scale(1.05);
    }

    .scenario-content {
      padding: 28px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .scenario-tag {
      font-size: 12px;
      font-weight: 600;
      color: var(--brand-green);
      background: var(--brand-green-pale);
      padding: 3px 10px;
      border-radius: 4px;
      align-self: flex-start;
      margin-bottom: 12px;
    }

    .scenario-content h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .scenario-content p {
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 20px;
      line-height: 1.7;
    }

    .scenario-stat-foot {
      margin-top: auto;
      padding-top: 16px;
      border-top: 1px solid var(--border-light);
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
    }

    /* 板块 7：关键数据统计条 */
    .metrics-bar-sec {
      background: linear-gradient(135deg, #0A5C4A 0%, #064033 100%);
      color: #FFF;
      padding: 60px 0;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }

    .metric-cell .num {
      font-size: 46px;
      font-weight: 800;
      letter-spacing: -1px;
      line-height: 1.1;
      margin-bottom: 8px;
      color: #6EE7B7;
    }

    .metric-cell .title {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .metric-cell .desc {
      font-size: 12px;
      color: #A7F3D0;
      opacity: 0.85;
    }

    /* 板块 8：评价墙 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

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

    .testi-stars {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 12px;
    }

    .testi-quote {
      font-size: 14px;
      line-height: 1.75;
      color: var(--text-secondary);
      margin-bottom: 20px;
    }

    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .author-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--bg-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--brand-green);
      border: 1px solid var(--border-light);
    }

    .author-info h4 {
      font-size: 14px;
      font-weight: 700;
    }

    .author-info p {
      font-size: 12px;
      color: var(--text-secondary);
    }

    /* 板块 9：资讯与异动报告摘要 */
    .intel-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .intel-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      cursor: pointer;
    }

    .intel-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .intel-thumb {
      height: 190px;
      overflow: hidden;
    }

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

    .intel-body {
      padding: 24px;
    }

    .intel-date {
      font-size: 12px;
      color: var(--text-secondary);
      margin-bottom: 8px;
    }

    .intel-body h3 {
      font-size: 17px;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 10px;
    }

    .intel-body p {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.65;
    }

    /* 板块 10：常见问题手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      user-select: none;
      background: #FFF;
    }

    .faq-icon-arrow {
      font-size: 18px;
      transition: transform 0.3s ease;
      color: var(--text-secondary);
    }

    .faq-item.active .faq-icon-arrow {
      transform: rotate(180deg);
      color: var(--brand-green);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      background: #FAFBFD;
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.8;
      border-top: 1px solid transparent;
    }

    .faq-item.active .faq-answer {
      max-height: 500px;
      transition: max-height 0.35s ease-in-out;
      padding: 18px 24px;
      border-top-color: var(--border-light);
    }

    /* 板块 11：自测预约转化区 */
    .conversion-box {
      background: linear-gradient(135deg, #131A26 0%, #0B0F17 100%);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      color: #FFF;
      box-shadow: var(--shadow-lg);
    }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr) 180px;
      gap: 16px;
      margin-top: 36px;
      align-items: center;
    }

    .form-control-item input, .form-control-item select {
      width: 100%;
      height: 48px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      padding: 0 16px;
      color: #FFF;
      font-size: 14px;
      transition: var(--transition);
    }

    .form-control-item input:focus, .form-control-item select:focus {
      border-color: #34D399;
      background: rgba(255, 255, 255, 0.12);
    }

    .form-control-item select option {
      background: var(--bg-dark);
      color: #FFF;
    }

    .form-submit-btn {
      height: 48px;
      width: 100%;
      background: var(--brand-green);
      color: #FFF;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 15px;
      transition: var(--transition);
    }

    .form-submit-btn:hover {
      background: var(--brand-green-light);
    }

    .form-promise-notes {
      display: flex;
      gap: 24px;
      margin-top: 20px;
      font-size: 13px;
      color: var(--text-light-sub);
    }

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

    /* 板块 12：生态信任节点 */
    .ecosystem-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 20px;
      align-items: center;
    }

    .node-partner-box {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 16px 12px;
      text-align: center;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-secondary);
      transition: var(--transition);
    }

    .node-partner-box:hover {
      border-color: var(--brand-green);
      color: var(--brand-green);
      box-shadow: var(--shadow-sm);
    }

    /* 页脚 */
    footer {
      background-color: #070A0F;
      color: var(--text-light-sub);
      padding-top: 72px;
      padding-bottom: 32px;
      border-top: 1px solid var(--border-dark);
      font-size: 14px;
    }

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

    .footer-col h4 {
      color: var(--text-light-main);
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
      position: relative;
    }

    .footer-col p {
      font-size: 13px;
      line-height: 1.8;
      margin-bottom: 16px;
    }

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

    .footer-links-list li {
      margin-bottom: 10px;
    }

    .footer-links-list a {
      color: var(--text-light-sub);
    }

    .footer-links-list a:hover {
      color: #34D399;
    }

    .footer-bottom-bar {
      padding-top: 32px;
      border-top: 1px solid var(--border-dark);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
    }

    .footer-legal-links {
      display: flex;
      gap: 16px;
    }

    /* 模态弹窗 */
    .modal-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(11, 15, 23, 0.7);
      backdrop-filter: blur(4px);
      z-index: 2000;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }

    .modal-overlay.active {
      display: flex;
    }

    .modal-content-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      max-width: 580px;
      width: 100%;
      padding: 32px;
      position: relative;
      box-shadow: var(--shadow-lg);
    }

    .modal-close-btn {
      position: absolute;
      top: 16px;
      right: 20px;
      background: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--text-secondary);
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .hero-grid, .intro-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .features-grid, .scenario-grid, .intel-grid, .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .philosophy-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .ecosystem-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .form-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-utility-bar {
        display: none;
      }
      .hero-banner-sec {
        padding-top: 110px;
      }
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFF;
        flex-direction: column;
        padding: 24px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-light);
        gap: 16px;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-cta-btn {
        display: none;
      }
      .hero-title {
        font-size: 32px;
      }
      .matrix-grid, .features-grid, .scenario-grid, .intel-grid, .testimonial-grid, .philosophy-grid {
        grid-template-columns: 1fr;
      }
      .matrix-card.featured {
        transform: none;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .ecosystem-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom-bar {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }