/* roulang page: index */
:root {
      --primary: #0F62FE;
      --primary-hover: #0043CE;
      --primary-soft: #EDF5FF;
      --accent: #FF5C00;
      --accent-hover: #E04F00;
      --bg-main: #F8F9FB;
      --bg-white: #FFFFFF;
      --bg-dark: #0D1526;
      --bg-dark-card: #16223B;
      --text-main: #161B26;
      --text-muted: #4A5568;
      --text-light: #718096;
      --border-color: #E2E8F0;
      --border-dark: #2A3B5C;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12);
      --font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    body {
      font-family: var(--font-family);
      font-size: 16px;
      line-height: 1.75;
      color: var(--text-muted);
      background-color: var(--bg-main);
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

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

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

    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部双行导航 */
    .top-notice-bar {
      background-color: #0B111E;
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .top-notice-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-notice-left span {
      margin-right: 20px;
    }
    .top-notice-right a {
      color: #CBD5E1;
      margin-left: 16px;
    }
    .top-notice-right a:hover {
      color: var(--accent);
    }

    .site-header {
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(10px);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 1px 10px rgba(0,0,0,0.05);
      border-bottom: 1px solid var(--border-color);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.02em;
    }
    .brand-logo-icon {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), #2F80ED);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 20px;
      font-weight: 900;
      box-shadow: 0 4px 12px rgba(15, 98, 254, 0.3);
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .nav-item {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      padding: 6px 0;
      position: relative;
    }
    .nav-item:hover, .nav-item.active {
      color: var(--primary);
    }
    .nav-item.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .header-action {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 6px 16px rgba(15, 98, 254, 0.35);
      transform: translateY(-1px);
    }
    .btn-accent {
      background-color: var(--accent);
      color: #FFFFFF;
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      box-shadow: 0 6px 16px rgba(255, 92, 0, 0.35);
      transform: translateY(-1px);
    }
    .btn-outline {
      background-color: transparent;
      border-color: var(--border-color);
      color: var(--text-main);
    }
    .btn-outline:hover {
      background-color: #F1F5F9;
      border-color: #CBD5E1;
    }
    .btn-white {
      background-color: #FFFFFF;
      color: var(--text-main);
    }
    .btn-white:hover {
      background-color: #F8FAFC;
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
      padding: 6px;
    }

    /* 板块基础规范 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }
    .section-wrap-light {
      background-color: #FFFFFF;
    }
    .section-wrap-alt {
      background-color: var(--bg-main);
    }
    .section-wrap-dark {
      background-color: var(--bg-dark);
      color: #A0ABC0;
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-header.text-center {
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .badge-sub {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      text-transform: uppercase;
      padding: 4px 12px;
      border-radius: 20px;
      background-color: var(--primary-soft);
      color: var(--primary);
      margin-bottom: 12px;
      letter-spacing: 0.04em;
    }
    .badge-sub-dark {
      background-color: rgba(15, 98, 254, 0.2);
      color: #60A5FA;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.02em;
      margin-bottom: 16px;
      line-height: 1.35;
    }
    .section-title-dark {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-muted);
    }
    .section-desc-dark {
      color: #94A3B8;
    }

    /* [Section 1] Hero 区域（符合文档帮助搜索与高阶业务主张） */
    .hero-section {
      background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
      padding: 70px 0 80px;
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      opacity: 0.05;
      background: url('/assets/images/76ac38c39a91c68d.webp') center/cover no-repeat;
      pointer-events: none;
    }
    .hero-inner {
      position: relative;
      z-index: 2;
      max-width: 880px;
      margin: 0 auto;
      text-align: center;
    }
    .hero-h1 {
      font-size: 40px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.03em;
      line-height: 1.3;
      margin-bottom: 20px;
    }
    .hero-h1 span {
      color: var(--primary);
    }
    .hero-p {
      font-size: 17px;
      line-height: 1.85;
      color: #475569;
      margin-bottom: 36px;
      text-align: justify;
      text-align-last: center;
    }
    .search-console-box {
      background: #FFFFFF;
      padding: 8px;
      border-radius: var(--radius-md);
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
      display: flex;
      align-items: center;
      max-width: 660px;
      margin: 0 auto 20px;
      border: 1px solid var(--border-color);
    }
    .search-console-input {
      flex: 1;
      border: none;
      outline: none;
      padding: 12px 18px;
      font-size: 16px;
      color: var(--text-main);
    }
    .hero-hot-chips {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      flex-wrap: wrap;
      font-size: 14px;
      color: #64748B;
    }
    .chip-item {
      background-color: #FFFFFF;
      padding: 5px 14px;
      border-radius: 20px;
      border: 1px solid #E2E8F0;
      color: #334155;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .chip-item:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--primary-soft);
    }

    /* [Section 2] 双栏资讯流与热榜板块 */
    .dual-flow-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 36px;
    }
    .info-card-item {
      display: flex;
      gap: 20px;
      background: #FFFFFF;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      margin-bottom: 20px;
      transition: all 0.25s ease;
    }
    .info-card-item:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
      border-color: #CBD5E1;
    }
    .info-card-thumb {
      width: 200px;
      height: 130px;
      border-radius: var(--radius-sm);
      overflow: hidden;
      flex-shrink: 0;
      background-color: #EDF2F7;
    }
    .info-card-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s;
    }
    .info-card-item:hover .info-card-thumb img {
      transform: scale(1.05);
    }
    .info-card-content {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .info-tag {
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .info-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.45;
      margin-bottom: 8px;
    }
    .info-summary {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.6;
    }
    .rank-board {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .rank-board-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      padding-bottom: 16px;
      border-bottom: 2px solid var(--primary-soft);
      margin-bottom: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .rank-list {
      list-style: none;
    }
    .rank-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px dashed var(--border-color);
    }
    .rank-item:last-child {
      border-bottom: none;
    }
    .rank-num {
      width: 24px;
      height: 24px;
      border-radius: 4px;
      background-color: #F1F5F9;
      color: #64748B;
      font-size: 13px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .rank-item:nth-child(1) .rank-num { background-color: #FF5C00; color: #fff; }
    .rank-item:nth-child(2) .rank-num { background-color: #FF8A00; color: #fff; }
    .rank-item:nth-child(3) .rank-num { background-color: #0F62FE; color: #fff; }
    .rank-text {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-main);
      line-height: 1.5;
    }

    /* [Section 3] 优惠券墙与运营特惠 */
    .coupon-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 36px;
    }
    .coupon-card {
      background: #FFFFFF;
      border: 1px solid #FED7AA;
      border-radius: var(--radius-md);
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: 0 4px 15px rgba(255, 92, 0, 0.06);
    }
    .coupon-top {
      background: linear-gradient(135deg, #FFF7ED, #FFEDD5);
      padding: 24px;
      border-bottom: 2px dashed #FDBA74;
      position: relative;
    }
    .coupon-top::before, .coupon-top::after {
      content: '';
      position: absolute;
      bottom: -8px;
      width: 16px;
      height: 16px;
      background: var(--bg-main);
      border-radius: 50%;
    }
    .coupon-top::before { left: -8px; }
    .coupon-top::after { right: -8px; }
    .coupon-val {
      font-size: 34px;
      font-weight: 800;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 6px;
    }
    .coupon-val span {
      font-size: 16px;
      font-weight: 600;
    }
    .coupon-name {
      font-size: 16px;
      font-weight: 700;
      color: #9A3412;
    }
    .coupon-body {
      padding: 20px 24px;
      background: #FFFFFF;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .coupon-desc {
      font-size: 14px;
      color: #64748B;
      margin-bottom: 16px;
      line-height: 1.6;
    }

    /* [Section 4] 核心优势网格区（3x2） */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .feature-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .feature-box:hover {
      border-color: var(--primary);
      box-shadow: 0 12px 30px rgba(15, 98, 254, 0.1);
      transform: translateY(-4px);
    }
    .feature-icon-wrap {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: var(--primary-soft);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 24px;
      font-weight: bold;
      margin-bottom: 20px;
    }
    .feature-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .feature-text {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-muted);
    }

    /* [Section 5] 产品矩阵版本卡片（3栏彩色状态条） */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .matrix-bar-top {
      height: 6px;
      width: 100%;
    }
    .matrix-bar-blue { background: #0F62FE; }
    .matrix-bar-orange { background: #FF5C00; }
    .matrix-bar-emerald { background: #10B981; }
    .matrix-inner {
      padding: 32px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .matrix-badge {
      font-size: 13px;
      font-weight: 600;
      color: #64748B;
      margin-bottom: 12px;
    }
    .matrix-title {
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .matrix-desc {
      font-size: 14px;
      color: var(--text-light);
      margin-bottom: 24px;
      line-height: 1.6;
    }
    .matrix-list {
      list-style: none;
      margin-bottom: 30px;
      flex: 1;
    }
    .matrix-list-item {
      font-size: 14px;
      color: var(--text-muted);
      padding: 8px 0;
      display: flex;
      align-items: center;
      gap: 10px;
      border-bottom: 1px dashed #F1F5F9;
    }
    .matrix-list-item::before {
      content: '✓';
      color: #10B981;
      font-weight: bold;
    }

    /* [Section 6] 数字化深色案例与管理理念区 */
    .dark-concept-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .concept-stats-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .concept-stat-box {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      padding: 24px;
      border-radius: var(--radius-md);
    }
    .concept-num {
      font-size: 32px;
      font-weight: 800;
      color: #60A5FA;
      margin-bottom: 6px;
    }
    .concept-label {
      font-size: 14px;
      color: #94A3B8;
      line-height: 1.5;
    }

    /* [Section 7] 数字化赋能使用场景区（用户故事交替图文） */
    .scenario-item {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
      margin-bottom: 60px;
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
    }
    .scenario-item:last-child {
      margin-bottom: 0;
    }
    .scenario-item.reverse {
      grid-template-columns: 1fr 1fr;
    }
    .scenario-item.reverse .scenario-img-box {
      order: 2;
    }
    .scenario-item.reverse .scenario-text-box {
      order: 1;
    }
    .scenario-img-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      height: 280px;
      box-shadow: var(--shadow-sm);
    }
    .scenario-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .scenario-tag {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .scenario-title {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .scenario-quote {
      font-size: 14px;
      color: #64748B;
      border-left: 3px solid var(--primary);
      padding-left: 14px;
      margin-top: 16px;
      font-style: italic;
    }

    /* [Section 8] 关键运营数据统计条 */
    .metrics-bar-section {
      background: linear-gradient(135deg, #0F62FE, #0043CE);
      color: #FFFFFF;
      padding: 60px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-item-num {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.1;
      margin-bottom: 8px;
      color: #FFFFFF;
    }
    .metric-item-name {
      font-size: 16px;
      font-weight: 600;
      color: #BFDBFE;
      margin-bottom: 4px;
    }
    .metric-item-sub {
      font-size: 13px;
      color: #93C5FD;
    }

    /* [Section 9] 用户口碑墙 (Masonry 风格网格) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }
    .testimonial-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
      border-color: #CBD5E1;
    }
    .stars {
      color: #F59E0B;
      font-size: 16px;
      margin-bottom: 12px;
      letter-spacing: 2px;
    }
    .testimonial-body {
      font-size: 15px;
      line-height: 1.7;
      color: var(--text-muted);
      margin-bottom: 20px;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      object-fit: cover;
    }
    .author-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .author-role {
      font-size: 13px;
      color: var(--text-light);
    }

    /* [Section 10] 产品截图与演示舞台 */
    .stage-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-md);
    }
    .stage-nav {
      display: flex;
      gap: 12px;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 16px;
      margin-bottom: 24px;
      overflow-x: auto;
    }
    .stage-btn {
      padding: 8px 20px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 14px;
      background: #F1F5F9;
      color: #475569;
      border: none;
      cursor: pointer;
      white-space: nowrap;
      transition: all 0.2s ease;
    }
    .stage-btn.active, .stage-btn:hover {
      background: var(--primary);
      color: #FFFFFF;
    }
    .stage-display-area {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      background: #0B1320;
    }
    .stage-display-area img {
      width: 100%;
      height: 440px;
      object-fit: cover;
      opacity: 0.92;
    }
    .stage-pins-bar {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-top: 20px;
    }
    .stage-pin-item {
      background: #F8FAFC;
      border: 1px solid #E2E8F0;
      padding: 16px;
      border-radius: var(--radius-sm);
    }
    .stage-pin-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .stage-pin-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* [Section 11] 版本与透明资费表 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      align-items: stretch;
    }
    .price-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .price-card.featured {
      border: 2px solid var(--primary);
      box-shadow: 0 16px 36px -4px rgba(15, 98, 254, 0.16);
      transform: translateY(-8px);
    }
    .price-badge-top {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #FFFFFF;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 12px;
    }
    .price-level {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .price-cost {
      font-size: 40px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .price-cost span {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-light);
    }
    .price-features {
      list-style: none;
      margin: 20px 0 32px;
      flex: 1;
    }
    .price-features li {
      font-size: 14px;
      color: var(--text-muted);
      padding: 8px 0;
      display: flex;
      align-items: center;
      gap: 10px;
      border-bottom: 1px dashed #F1F5F9;
    }
    .price-features li::before {
      content: '✔';
      color: var(--primary);
      font-weight: 700;
    }

    /* [Section 12] 常见问题手风琴区 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      transition: all 0.2s ease;
    }
    .faq-item details {
      width: 100%;
    }
    .faq-item summary {
      padding: 20px 24px;
      font-size: 17px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary::after {
      content: '+';
      font-size: 22px;
      color: var(--primary);
      font-weight: 400;
    }
    .faq-item details[open] summary::after {
      content: '−';
    }
    .faq-item details[open] {
      border-bottom: 1px solid #EDF2F7;
    }
    .faq-answer {
      padding: 0 24px 20px;
      font-size: 15px;
      line-height: 1.75;
      color: var(--text-muted);
    }

    /* 底部收口终极转化 CTA */
    .final-cta-section {
      background: #0B1222;
      padding: 70px 0;
      position: relative;
    }
    .final-cta-box {
      background: linear-gradient(135deg, #162447, #1F3366);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 48px;
      text-align: center;
      color: #FFFFFF;
    }
    .cta-h2 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 16px;
      color: #FFFFFF;
    }
    .cta-p {
      font-size: 16px;
      color: #CBD5E1;
      max-width: 640px;
      margin: 0 auto 32px;
      line-height: 1.7;
    }
    .cta-form-inline {
      display: flex;
      max-width: 520px;
      margin: 0 auto 16px;
      gap: 12px;
    }
    .cta-input {
      flex: 1;
      padding: 14px 20px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.08);
      color: #FFFFFF;
      outline: none;
    }
    .cta-input::placeholder {
      color: #94A3B8;
    }
    .cta-note {
      font-size: 13px;
      color: #94A3B8;
    }

    /* 页脚 Footer */
    .site-footer {
      background: #070B14;
      color: #94A3B8;
      padding: 60px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-logo {
      font-size: 20px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-intro {
      line-height: 1.7;
      color: #64748B;
      max-width: 320px;
    }
    .footer-col-title {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94A3B8;
    }
    .footer-links a:hover {
      color: #FFFFFF;
    }
    .footer-contact-list {
      list-style: none;
      line-height: 1.8;
      color: #94A3B8;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
      color: #64748B;
    }
    .footer-icp a {
      color: #64748B;
    }
    .footer-icp a:hover {
      color: #94A3B8;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .dual-flow-grid { grid-template-columns: 1fr; }
      .features-grid { grid-template-columns: repeat(2, 1fr); }
      .matrix-grid { grid-template-columns: 1fr; }
      .pricing-grid { grid-template-columns: 1fr; }
      .testimonial-grid { grid-template-columns: 1fr; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .top-notice-bar { display: none; }
      .main-nav { display: none; }
      .mobile-menu-toggle { display: block; }
      .hero-h1 { font-size: 28px; }
      .section-title { font-size: 24px; }
      .features-grid { grid-template-columns: 1fr; }
      .coupon-grid { grid-template-columns: 1fr; }
      .dark-concept-wrap { grid-template-columns: 1fr; }
      .scenario-item { grid-template-columns: 1fr; padding: 24px; }
      .scenario-item.reverse { grid-template-columns: 1fr; }
      .scenario-item.reverse .scenario-img-box { order: 1; }
      .scenario-item.reverse .scenario-text-box { order: 2; }
      .stage-pins-bar { grid-template-columns: 1fr; }
      .stage-display-area img { height: 260px; }
      .cta-form-inline { flex-direction: column; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }