/* roulang page: index */
:root {
      --primary: #1E60D5;
      --primary-hover: #154bb3;
      --primary-light: #EBF2FE;
      --accent: #00C08B;
      --accent-cyan: #0EA5E9;
      --bg-main: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0F172A;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
      --shadow-hover: 0 10px 25px -5px rgba(30, 96, 213, 0.12);
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-body);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button, input, select {
      font: inherit;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部服务小条 */
    .top-bar {
      background-color: #F1F5F9;
      font-size: 13px;
      color: var(--text-muted);
      border-bottom: 1px solid var(--border-color);
      padding: 8px 0;
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }
    .top-bar-left span {
      margin-right: 18px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background-color: var(--accent);
      border-radius: 50%;
      display: inline-block;
    }

    /* 主导航 */
    .main-header {
      background-color: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(8px);
      position: sticky;
      top: 0;
      z-index: 100;
      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;
    }
    .logo-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
    }
    .logo-badge {
      background: var(--primary);
      color: #fff;
      padding: 4px 8px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 800;
    }
    .nav-menu {
      display: flex;
      list-style: none;
      gap: 28px;
      align-items: center;
    }
    .nav-menu a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
    }
    .nav-menu a:hover {
      color: var(--primary);
    }
    .nav-cta-btn {
      background-color: var(--primary);
      color: #FFFFFF !important;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      box-shadow: 0 4px 10px rgba(30, 96, 213, 0.2);
    }
    .nav-cta-btn:hover {
      background-color: var(--primary-hover);
      transform: translateY(-1px);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--text-main);
      padding: 8px;
    }

    /* 通用板块样式 */
    section {
      padding: 80px 0;
      position: relative;
    }
    .section-bg-white {
      background-color: var(--bg-white);
    }
    .section-bg-alt {
      background-color: #F8FAFC;
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #FFFFFF;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 56px auto;
    }
    .section-tag {
      display: inline-block;
      color: var(--primary);
      background-color: var(--primary-light);
      padding: 4px 14px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-dark .section-tag {
      background-color: rgba(14, 165, 233, 0.15);
      color: var(--accent-cyan);
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.35;
    }
    .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;
    }

    /* 1. Hero 优惠券墙入口版式 */
    .hero-section {
      padding: 70px 0 90px 0;
      background: linear-gradient(180deg, #EFF6FF 0%, #F8FAFC 100%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      right: 0;
      width: 50%;
      height: 100%;
      opacity: 0.05;
      background-size: cover;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .hero-badge-row {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #DBEAFE;
      padding: 6px 14px;
      border-radius: 999px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 20px;
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
    }
    .hero-h1 span {
      color: var(--primary);
    }
    .hero-intro {
      font-size: 16px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #fff;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(30, 96, 213, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
    }
    .btn-secondary {
      background-color: #FFFFFF;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .btn-secondary:hover {
      background-color: #F1F5F9;
      border-color: #CBD5E1;
    }
    .hero-proof-strip {
      display: flex;
      align-items: center;
      gap: 24px;
      border-top: 1px solid rgba(226, 232, 240, 0.8);
      padding-top: 20px;
      font-size: 13px;
      color: var(--text-muted);
    }
    .hero-proof-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 优惠券墙/主券面放大 */
    .coupon-wall-card {
      background: #FFFFFF;
      border: 2px dashed #93C5FD;
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: 0 20px 35px -10px rgba(30, 96, 213, 0.15);
      position: relative;
    }
    .coupon-badge-top {
      position: absolute;
      top: -14px;
      right: 24px;
      background: linear-gradient(135deg, #EF4444, #F97316);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 999px;
      box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
    }
    .coupon-main-ticket {
      background: linear-gradient(135deg, #1E60D5 0%, #2563EB 100%);
      border-radius: var(--radius-md);
      padding: 24px;
      color: #FFFFFF;
      margin-bottom: 20px;
      position: relative;
      overflow: hidden;
    }
    .coupon-value-row {
      display: flex;
      align-items: baseline;
      gap: 4px;
      margin-bottom: 8px;
    }
    .coupon-currency {
      font-size: 22px;
      font-weight: 700;
    }
    .coupon-amount {
      font-size: 46px;
      font-weight: 900;
      line-height: 1;
    }
    .coupon-label {
      font-size: 14px;
      background: rgba(255, 255, 255, 0.2);
      padding: 2px 8px;
      border-radius: 4px;
      margin-left: 8px;
    }
    .coupon-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .coupon-sub {
      font-size: 13px;
      opacity: 0.85;
      line-height: 1.5;
    }
    .coupon-wall-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .sub-coupon-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
    }
    .sub-coupon-left {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .sub-coupon-val {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
    }
    .sub-coupon-desc {
      font-size: 13px;
      color: var(--text-body);
      font-weight: 600;
    }
    .sub-coupon-desc small {
      display: block;
      color: var(--text-muted);
      font-weight: 400;
    }
    .btn-claim-pill {
      background: var(--primary-light);
      color: var(--primary);
      border: 1px solid #BFDBFE;
      padding: 6px 14px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
    }
    .btn-claim-pill:hover {
      background: var(--primary);
      color: #fff;
    }

    /* 2. 行业痛点剖析区 */
    .painpoint-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .painpoint-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      position: relative;
    }
    .painpoint-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #BFDBFE;
    }
    .painpoint-tag {
      color: #EF4444;
      background-color: #FEF2F2;
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 700;
      display: inline-block;
      margin-bottom: 16px;
    }
    .painpoint-card h3 {
      font-size: 19px;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .painpoint-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 3. 产品架构与软硬件方案介绍 */
    .solution-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .solution-img-box {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
    }
    .solution-img-box img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .solution-tech-badge {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(8px);
      color: #fff;
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .solution-tech-badge span {
      color: var(--accent);
      font-weight: 700;
    }
    .solution-content h3 {
      font-size: 26px;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.35;
    }
    .solution-content p {
      font-size: 15px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .tech-specs-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 28px;
    }
    .tech-spec-item {
      background: #F1F5F9;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border-left: 3px solid var(--primary);
    }
    .tech-spec-item strong {
      display: block;
      font-size: 14px;
      color: var(--text-main);
      margin-bottom: 2px;
    }
    .tech-spec-item span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 4. 核心能力优势矩阵 (3x2) */
    .features-grid-6 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: #FFFFFF;
      padding: 30px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .feature-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .feature-icon-bubble {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 20px;
    }
    .feature-card h3 {
      font-size: 18px;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 5. 热门场地与场景预订展示 */
    .venues-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .venue-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .venue-img-wrapper {
      position: relative;
      height: 200px;
      overflow: hidden;
    }
    .venue-img-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .venue-card:hover .venue-img-wrapper img {
      transform: scale(1.05);
    }
    .venue-tag-status {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(15, 23, 42, 0.75);
      color: #FFFFFF;
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 500;
    }
    .venue-content {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .venue-content h3 {
      font-size: 18px;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .venue-content p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.6;
    }
    .venue-footer {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .venue-price {
      font-size: 18px;
      font-weight: 800;
      color: #EF4444;
    }
    .venue-price small {
      font-size: 12px;
      color: var(--text-muted);
      font-weight: 400;
    }
    .btn-venue-book {
      background: var(--primary);
      color: #FFFFFF;
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      font-weight: 600;
    }
    .btn-venue-book:hover {
      background: var(--primary-hover);
    }

    /* 6. 沉浸式深色理念区 */
    .dark-concept-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .dark-concept-left h2 {
      font-size: 32px;
      color: #FFFFFF;
      line-height: 1.35;
      margin-bottom: 20px;
    }
    .dark-concept-left p {
      font-size: 15px;
      color: #94A3B8;
      line-height: 1.8;
      margin-bottom: 28px;
    }
    .concept-points-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .concept-point-item {
      display: flex;
      gap: 14px;
      align-items: flex-start;
    }
    .concept-dot {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: rgba(14, 165, 233, 0.2);
      color: var(--accent-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 700;
      flex-shrink: 0;
      margin-top: 2px;
    }
    .concept-point-item strong {
      color: #FFFFFF;
      display: block;
      font-size: 15px;
      margin-bottom: 2px;
    }
    .concept-point-item span {
      color: #64748B;
      font-size: 13px;
    }
    .dark-dashboard-preview {
      background: #1E293B;
      border: 1px solid #334155;
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    }
    .dashboard-stat-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 20px;
    }
    .stat-box-dark {
      background: #0F172A;
      padding: 16px;
      border-radius: var(--radius-sm);
      border: 1px solid #334155;
    }
    .stat-box-dark .val {
      font-size: 24px;
      font-weight: 800;
      color: var(--accent-cyan);
      margin-bottom: 4px;
    }
    .stat-box-dark .label {
      font-size: 12px;
      color: #94A3B8;
    }
    .log-terminal-dark {
      background: #090D16;
      padding: 14px;
      border-radius: var(--radius-sm);
      font-family: monospace;
      font-size: 12px;
      color: #10B981;
      line-height: 1.6;
    }

    /* 7. 预订及管理 4 步流转 */
    .steps-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-num-badge {
      width: 40px;
      height: 40px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 800;
      margin: 0 auto 16px auto;
      border: 2px solid #BFDBFE;
    }
    .step-card h3 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 8. 关键运营成果数据条 */
    .stats-strip-section {
      background: var(--primary);
      color: #FFFFFF;
      padding: 60px 0;
    }
    .stats-strip-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .stat-strip-item .num {
      font-size: 40px;
      font-weight: 900;
      margin-bottom: 6px;
      line-height: 1;
    }
    .stat-strip-item .label {
      font-size: 15px;
      opacity: 0.9;
      margin-bottom: 4px;
    }
    .stat-strip-item .sub {
      font-size: 12px;
      opacity: 0.7;
    }

    /* 9. 多角色客户证言区 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testimonial-card {
      background: #FFFFFF;
      padding: 32px 26px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .quote-icon {
      font-size: 32px;
      color: #BFDBFE;
      line-height: 1;
      margin-bottom: 12px;
      font-family: Georgia, serif;
    }
    .testimonial-text {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }
    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }
    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
    }
    .user-meta h4 {
      font-size: 15px;
      color: var(--text-main);
      font-weight: 700;
    }
    .user-meta span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 10. 多端适用人群与组织形态 */
    .persona-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .persona-card {
      background: #FFFFFF;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .persona-card:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
    }
    .persona-card-icon {
      font-size: 28px;
      margin-bottom: 14px;
    }
    .persona-card h3 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .persona-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 11. 资讯动态 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .news-img {
      height: 180px;
      overflow: hidden;
    }
    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-img img {
      transform: scale(1.05);
    }
    .news-body {
      padding: 22px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-meta-row {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 10px;
    }
    .news-badge {
      background: var(--primary-light);
      color: var(--primary);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .news-body h3 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }
    .news-link {
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 12. 常见疑问手风琴（FAQ） */
    .faq-container {
      max-width: 840px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-item summary {
      padding: 20px 24px;
      font-size: 16px;
      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: 20px;
      font-weight: 400;
      color: var(--primary);
      transition: transform 0.2s ease;
    }
    .faq-item[open] summary::after {
      content: "−";
      color: #EF4444;
    }
    .faq-content {
      padding: 0 24px 20px 24px;
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }

    /* 13. 底部闭环转化行动区（Bottom CTA） */
    .bottom-cta-box {
      background: linear-gradient(135deg, #1E60D5 0%, #154bb3 100%);
      border-radius: var(--radius-lg);
      padding: 56px 40px;
      color: #FFFFFF;
      box-shadow: 0 20px 40px -15px rgba(30, 96, 213, 0.4);
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .bottom-cta-box h2 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .bottom-cta-box p {
      font-size: 16px;
      opacity: 0.9;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .cta-form {
      background: #FFFFFF;
      padding: 28px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      color: var(--text-main);
    }
    .cta-form h3 {
      font-size: 18px;
      margin-bottom: 16px;
      font-weight: 700;
      color: var(--text-main);
    }
    .form-group {
      margin-bottom: 14px;
    }
    .form-group input, .form-group select {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      outline: none;
    }
    .form-group input:focus, .form-group select:focus {
      border-color: var(--primary);
    }
    .btn-submit-form {
      width: 100%;
      background: var(--primary);
      color: #FFFFFF;
      border: none;
      padding: 13px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(30, 96, 213, 0.3);
    }
    .btn-submit-form:hover {
      background: var(--primary-hover);
    }

    /* 页脚 */
    .main-footer {
      background-color: #0F172A;
      color: #94A3B8;
      padding: 64px 0 32px 0;
      border-top: 1px solid #1E293B;
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-brand h4 {
      font-size: 20px;
      color: #FFFFFF;
      margin-bottom: 16px;
      font-weight: 700;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .footer-col h5 {
      font-size: 15px;
      color: #FFFFFF;
      margin-bottom: 18px;
      font-weight: 600;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .solution-block, .dark-concept-wrap, .bottom-cta-box {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .features-grid-6, .venues-grid, .testimonials-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-row, .persona-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-strip-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      section {
        padding: 48px 0;
      }
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        gap: 16px;
      }
      .nav-menu.active {
        display: flex;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .hero-h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .painpoint-grid, .features-grid-6, .venues-grid, .steps-row, .testimonials-grid, .persona-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .stats-strip-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }