/* roulang page: index */
:root {
      --bg-dark: #0F1115;
      --bg-panel: #181B22;
      --bg-card: #202530;
      --bg-card-hover: #262D3B;
      --primary-orange: #FF5500;
      --primary-orange-hover: #E04B00;
      --accent-green: #00E599;
      --accent-blue: #38BDF8;
      --text-white: #F8FAFC;
      --text-gray: #94A3B8;
      --text-muted: #64748B;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-orange: rgba(255, 85, 0, 0.35);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.25);
      --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.45);
      --container-max: 1240px;
      --font-mono: "DIN Alternate", "Chakra Petch", Consolas, Menlo, monospace;
      --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-dark);
      color: var(--text-white);
    }

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-dark);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

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

    /* 顶部与导航 */
    .top-bar {
      background-color: #090B0E;
      height: 38px;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 13px;
      color: var(--text-gray);
      display: flex;
      align-items: center;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--accent-green);
    }
    .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: var(--accent-green);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent-green);
      animation: pulseAnim 2s infinite;
    }
    @keyframes pulseAnim {
      0% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
      100% { opacity: 1; transform: scale(1); }
    }

    .site-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(15, 17, 21, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-subtle);
      height: 72px;
      display: flex;
      align-items: center;
    }
    .nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--text-white);
    }
    .logo-mark {
      background: linear-gradient(135deg, var(--primary-orange), #FF8800);
      color: #FFF;
      font-family: var(--font-mono);
      font-weight: 900;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      display: inline-block;
    }
    .nav-links {
      display: flex;
      gap: 28px;
      list-style: none;
      align-items: center;
    }
    .nav-links a {
      font-size: 15px;
      color: var(--text-gray);
      font-weight: 500;
      padding: 6px 0;
      position: relative;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--primary-orange);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary-orange);
      border-radius: 2px;
    }
    .btn-cta-nav {
      background-color: var(--primary-orange);
      color: #FFF;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 20px;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      transition: all 0.25s ease;
      cursor: pointer;
    }
    .btn-cta-nav:hover {
      background-color: var(--primary-orange-hover);
      box-shadow: 0 4px 14px rgba(255, 85, 0, 0.4);
    }

    /* 移动端汉堡按钮 */
    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-subtle);
      color: var(--text-white);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }

    /* 通用 Section 样式 */
    section {
      padding: 96px 0;
      position: relative;
      border-bottom: 1px solid var(--border-subtle);
    }
    .section-alt {
      background-color: var(--bg-panel);
    }
    .section-header {
      max-width: 820px;
      margin-bottom: 56px;
    }
    .section-header.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary-orange);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 12px;
      background: rgba(255, 85, 0, 0.1);
      padding: 4px 12px;
      border-radius: 20px;
      border: 1px solid rgba(255, 85, 0, 0.2);
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
      color: var(--text-white);
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-gray);
      line-height: 1.75;
    }

    /* 板块 01: Hero (前后对比落地首屏) */
    .hero-section {
      padding: 80px 0 100px;
      background: radial-gradient(circle at 80% 20%, rgba(255, 85, 0, 0.12) 0%, rgba(15, 17, 21, 0) 65%), #0F1115;
      background-image: linear-gradient(to bottom, rgba(15, 17, 21, 0.85), rgba(15, 17, 21, 0.98)), url('/assets/images/cab261c7a3be29a8.jpg');
      background-size: cover;
      background-position: center;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1.08fr;
      gap: 48px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 44px;
      font-weight: 900;
      line-height: 1.22;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-h1 span {
      color: var(--primary-orange);
    }
    .hero-summary {
      font-size: 16px;
      color: var(--text-gray);
      line-height: 1.8;
      margin-bottom: 32px;
    }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      align-items: center;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: var(--primary-orange);
      color: #FFF;
      font-size: 16px;
      font-weight: 700;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: all 0.25s ease;
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      background: var(--primary-orange-hover);
      box-shadow: 0 8px 24px rgba(255, 85, 0, 0.35);
      transform: translateY(-2px);
    }
    .btn-secondary {
      background: rgba(255, 255, 255, 0.05);
      color: var(--text-white);
      font-size: 16px;
      font-weight: 600;
      padding: 14px 26px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-subtle);
      transition: all 0.25s ease;
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.2);
    }
    .hero-trust-metrics {
      display: flex;
      gap: 32px;
      padding-top: 24px;
      border-top: 1px solid var(--border-subtle);
    }
    .trust-metric-item h4 {
      font-family: var(--font-mono);
      font-size: 26px;
      font-weight: 800;
      color: var(--text-white);
      line-height: 1;
      margin-bottom: 6px;
    }
    .trust-metric-item p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 首屏 Before / After 对比组件 */
    .compare-container {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-lg);
    }
    .compare-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-subtle);
    }
    .compare-title {
      font-size: 15px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .compare-panels {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .panel-before, .panel-after {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 20px;
      border: 1px solid var(--border-subtle);
    }
    .panel-before {
      border-left: 3px solid #EF4444;
    }
    .panel-after {
      border-left: 3px solid var(--accent-green);
      background: linear-gradient(180deg, rgba(0, 229, 153, 0.04) 0%, rgba(32, 37, 48, 1) 100%);
    }
    .panel-label {
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 14px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .panel-before .panel-label { color: #F87171; }
    .panel-after .panel-label { color: var(--accent-green); }
    .compare-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 13.5px;
      color: var(--text-gray);
    }
    .compare-list li {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      line-height: 1.45;
    }
    .badge-diff-neg {
      color: #EF4444;
      font-weight: 800;
    }
    .badge-diff-pos {
      color: var(--accent-green);
      font-weight: 800;
    }

    /* 板块 02: 核心产品与底层架构 (图文交错) */
    .overview-layout {
      display: grid;
      grid-template-columns: 1.05fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .overview-visual {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-lg);
    }
    .overview-visual img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .overview-visual:hover img {
      transform: scale(1.02);
    }
    .visual-float-tag {
      position: absolute;
      bottom: 20px;
      left: 20px;
      background: rgba(15, 17, 21, 0.9);
      backdrop-filter: blur(8px);
      padding: 12px 18px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-orange);
      font-size: 13px;
      color: var(--text-white);
    }
    .spec-item-box {
      margin-top: 24px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px;
      display: flex;
      gap: 20px;
    }
    .spec-num {
      font-family: var(--font-mono);
      font-size: 28px;
      font-weight: 800;
      color: var(--primary-orange);
      line-height: 1;
    }

    /* 板块 03: 核心赋能优势矩阵 (6 宫格) */
    .grid-advantages {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .adv-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      position: relative;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .adv-card:hover {
      transform: translateY(-5px);
      border-color: var(--border-orange);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
    }
    .adv-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 28px;
      right: 28px;
      height: 2px;
      background: linear-gradient(90deg, transparent, rgba(255, 85, 0, 0.8), transparent);
      opacity: 0;
      transition: opacity 0.3s ease;
    }
    .adv-card:hover::before {
      opacity: 1;
    }
    .adv-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: rgba(255, 85, 0, 0.12);
      color: var(--primary-orange);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 800;
      font-family: var(--font-mono);
      margin-bottom: 20px;
      border: 1px solid rgba(255, 85, 0, 0.2);
    }
    .adv-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-white);
    }
    .adv-sub {
      font-size: 13px;
      color: var(--accent-blue);
      margin-bottom: 12px;
      font-weight: 600;
    }
    .adv-desc {
      font-size: 14.5px;
      color: var(--text-gray);
      line-height: 1.65;
    }

    /* 板块 04: 专业产品线套餐对比 (3 列) */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      align-items: stretch;
    }
    .pricing-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 40px 32px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: all 0.3s ease;
    }
    .pricing-card.featured {
      background: linear-gradient(180deg, #242A38 0%, #1A1E27 100%);
      border: 2px solid var(--primary-orange);
      transform: scale(1.03);
      box-shadow: 0 16px 40px rgba(255, 85, 0, 0.15);
      z-index: 2;
    }
    .pricing-badge-popular {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary-orange);
      color: #FFF;
      font-size: 12px;
      font-weight: 800;
      padding: 4px 16px;
      border-radius: 20px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .pricing-title {
      font-size: 22px;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .pricing-desc {
      font-size: 14px;
      color: var(--text-gray);
      margin-bottom: 24px;
      min-height: 42px;
    }
    .pricing-features {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 36px;
      flex-grow: 1;
    }
    .pricing-features li {
      font-size: 14px;
      color: var(--text-gray);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .check-mark {
      color: var(--accent-green);
      font-weight: 800;
      font-size: 15px;
    }

    /* 板块 05: 交互场景流与战术白板联动 (Tab 展示) */
    .tab-control-bar {
      display: flex;
      justify-content: center;
      gap: 12px;
      margin-bottom: 36px;
      flex-wrap: wrap;
    }
    .tab-btn {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      color: var(--text-gray);
      padding: 12px 24px;
      border-radius: 30px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.25s ease;
    }
    .tab-btn.active, .tab-btn:hover {
      background: var(--primary-orange);
      color: #FFF;
      border-color: var(--primary-orange);
    }
    .scenario-stage {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 36px;
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .radar-visual-box {
      background: #11141B;
      border: 1px dashed rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .data-row {
      display: flex;
      justify-content: space-between;
      padding: 10px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 14px;
    }
    .data-row span:last-child {
      font-family: var(--font-mono);
      font-weight: 700;
      color: var(--accent-green);
    }

    /* 板块 06: 职业级理念与空间篮球算法演进 (深色全宽沉浸区) */
    .philosophy-banner {
      background: linear-gradient(135deg, #090B0E 0%, #161A22 100%);
      padding: 110px 0;
      text-align: center;
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
      position: relative;
      overflow: hidden;
    }
    .philosophy-banner::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -20%;
      width: 140%;
      height: 200%;
      background: radial-gradient(circle, rgba(255, 85, 0, 0.06) 0%, transparent 60%);
      pointer-events: none;
    }
    .philosophy-quote {
      font-size: 32px;
      font-weight: 800;
      max-width: 960px;
      margin: 0 auto 24px;
      line-height: 1.45;
      color: var(--text-white);
    }
    .philosophy-sub {
      font-size: 17px;
      color: var(--text-gray);
      max-width: 780px;
      margin: 0 auto;
      line-height: 1.8;
    }

    /* 板块 07: 俱乐部与球探实战案例 (双列深度故事) */
    .case-card-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .case-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .case-card img {
      width: 100%;
      height: 240px;
      object-fit: cover;
    }
    .case-body {
      padding: 30px;
    }
    .case-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      color: var(--accent-blue);
      background: rgba(56, 189, 248, 0.1);
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .case-heading {
      font-size: 21px;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .case-text {
      font-size: 14.5px;
      color: var(--text-gray);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .case-stat-footer {
      display: flex;
      gap: 20px;
      padding-top: 16px;
      border-top: 1px solid var(--border-subtle);
    }
    .case-stat-col strong {
      font-family: var(--font-mono);
      font-size: 18px;
      color: var(--accent-green);
      display: block;
    }
    .case-stat-col span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 08: 实时监控与关键数据条 (Metric Strip) */
    .metric-strip {
      background: #14171E;
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
      padding: 60px 0;
    }
    .metric-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-box h3 {
      font-family: var(--font-mono);
      font-size: 44px;
      font-weight: 900;
      color: var(--primary-orange);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-box h3 span {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-white);
    }
    .metric-box p {
      font-size: 14.5px;
      color: var(--text-gray);
      font-weight: 500;
    }

    /* 板块 09: 行业评价与权威背书 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-text {
      font-size: 14.5px;
      color: var(--text-gray);
      line-height: 1.7;
      margin-bottom: 24px;
      position: relative;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .author-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #2D3342;
      border: 2px solid var(--primary-orange);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: var(--text-white);
    }
    .author-info h5 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-white);
    }
    .author-info p {
      font-size: 12.5px;
      color: var(--text-muted);
    }

    /* 板块 10: 资讯与前沿研报 */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .insight-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .insight-card:hover {
      transform: translateY(-4px);
      border-color: rgba(255, 85, 0, 0.4);
    }
    .insight-card img {
      width: 100%;
      height: 190px;
      object-fit: cover;
    }
    .insight-content {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .insight-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 10px;
    }
    .insight-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.4;
      color: var(--text-white);
    }
    .insight-desc {
      font-size: 13.5px;
      color: var(--text-gray);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .insight-link {
      font-size: 13.5px;
      font-weight: 700;
      color: var(--primary-orange);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 板块 11: 常见问题手风琴 FAQ */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.25s ease;
    }
    .faq-item.active {
      border-color: var(--border-orange);
    }
    .faq-question {
      padding: 20px 24px;
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      color: var(--text-white);
      font-size: 16px;
      font-weight: 700;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-arrow {
      font-size: 18px;
      transition: transform 0.3s ease;
      color: var(--primary-orange);
    }
    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
    }
    .faq-answer {
      padding: 0 24px 20px;
      font-size: 14.5px;
      color: var(--text-gray);
      line-height: 1.75;
      display: none;
    }
    .faq-item.active .faq-answer {
      display: block;
    }

    /* 板块 12: 平台保障与合规规范条 */
    .guarantee-strip {
      background: #14171E;
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
      padding: 48px 0;
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-item {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    .guarantee-icon {
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: rgba(0, 229, 153, 0.1);
      color: var(--accent-green);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 800;
      flex-shrink: 0;
      border: 1px solid rgba(0, 229, 153, 0.2);
    }
    .guarantee-item h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 4px;
    }
    .guarantee-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块 13: 转化行动区 CTA 表单 */
    .cta-card {
      background: linear-gradient(135deg, #1C222C 0%, #15181F 100%);
      border: 1px solid rgba(255, 85, 0, 0.3);
      border-radius: var(--radius-lg);
      padding: 64px 48px;
      text-align: center;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
      position: relative;
      overflow: hidden;
    }
    .cta-card::after {
      content: '';
      position: absolute;
      top: -40%;
      left: 30%;
      width: 40%;
      height: 180%;
      background: radial-gradient(circle, rgba(255, 85, 0, 0.12) 0%, transparent 60%);
      pointer-events: none;
    }
    .cta-title {
      font-size: 36px;
      font-weight: 900;
      margin-bottom: 16px;
      color: var(--text-white);
    }
    .cta-desc {
      font-size: 16px;
      color: var(--text-gray);
      max-width: 680px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }
    .cta-form {
      max-width: 720px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1fr 1fr 1fr auto;
      gap: 12px;
    }
    .form-input {
      background: #0F1115;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      padding: 14px 16px;
      color: var(--text-white);
      font-size: 14px;
      outline: none;
      transition: border-color 0.25s ease;
    }
    .form-input:focus {
      border-color: var(--primary-orange);
    }

    /* 页脚 Footer */
    .site-footer {
      background-color: #0A0C0F;
      padding: 80px 0 32px;
      color: var(--text-gray);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
      gap: 48px;
      margin-bottom: 56px;
    }
    .footer-logo {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-about {
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-muted);
      margin-bottom: 20px;
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a:hover {
      color: var(--primary-orange);
    }
    .footer-bottom {
      padding-top: 32px;
      border-top: 1px solid var(--border-subtle);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--text-muted);
      flex-wrap: wrap;
      gap: 16px;
    }

    /* 移动端吸底固定转化条 */
    .fixed-bottom-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(15, 17, 21, 0.95);
      backdrop-filter: blur(10px);
      border-top: 1px solid var(--border-subtle);
      padding: 12px 20px;
      z-index: 999;
      justify-content: space-between;
      align-items: center;
    }
    .fixed-bar-text {
      font-size: 13px;
      color: var(--text-white);
      font-weight: 600;
    }
    .fixed-bar-btn {
      background: var(--primary-orange);
      color: #FFF;
      font-size: 14px;
      font-weight: 700;
      padding: 8px 18px;
      border-radius: var(--radius-sm);
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-grid, .overview-layout, .scenario-stage {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .grid-advantages, .pricing-grid, .testimonial-grid, .insights-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-row, .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .cta-form {
        grid-template-columns: 1fr 1fr;
      }
      .pricing-card.featured {
        transform: none;
      }
    }

    @media (max-width: 768px) {
      .top-bar { display: none; }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #11141A;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border-subtle);
        gap: 18px;
      }
      .nav-links.show {
        display: flex;
      }
      .menu-toggle { display: block; }
      .hero-h1 { font-size: 32px; }
      .section-title { font-size: 26px; }
      .grid-advantages, .pricing-grid, .testimonial-grid, .insights-grid, .case-card-grid {
        grid-template-columns: 1fr;
      }
      .metric-row, .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .compare-panels {
        grid-template-columns: 1fr;
      }
      .cta-form {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .fixed-bottom-bar {
        display: flex;
      }
      body {
        padding-bottom: 60px;
      }
    }