/* roulang page: index */
:root {
      --bg-dark: #070913;
      --bg-surface: #0f172a;
      --bg-surface-elevated: #162038;
      --brand-primary: #6366f1;
      --brand-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
      --brand-cyan: #06b6d4;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(255, 255, 255, 0.1);
      --border-glow: rgba(99, 102, 241, 0.35);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
      --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.25);
    }
    * { box-sizing: border-box; }
    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--brand-cyan); }
    img { max-width: 100%; height: auto; display: block; }
    .site-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
    
    /* 悬浮胶囊导航 */
    .capsule-header-wrapper {
      position: fixed;
      top: 20px;
      left: 0;
      right: 0;
      z-index: 999;
      display: flex;
      justify-content: center;
      padding: 0 16px;
      pointer-events: none;
    }
    .capsule-nav {
      pointer-events: auto;
      background: rgba(15, 23, 42, 0.82);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-full);
      padding: 8px 24px;
      box-shadow: 0 12px 35px rgba(0,0,0,0.4), 0 0 15px rgba(99, 102, 241, 0.15);
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      max-width: 1080px;
    }
    .capsule-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: 0.5px;
    }
    .capsule-logo-badge {
      width: 34px;
      height: 34px;
      border-radius: var(--radius-full);
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 0.9rem;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 20px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-links li a {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 6px 12px;
      border-radius: var(--radius-full);
      display: block;
    }
    .nav-links li a:hover, .nav-links li a.active {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
    }
    .nav-action-btn {
      background: var(--brand-gradient);
      color: #fff !important;
      padding: 8px 18px !important;
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 600;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    }
    .nav-action-btn:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
    }

    /* 通用组件 */
    .section-wrap {
      padding: 90px 0;
      position: relative;
    }
    .section-wrap.alt-bg {
      background-color: #0b1021;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px auto;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(99, 102, 241, 0.12);
      border: 1px solid var(--border-glow);
      color: #a5b4fc;
      font-size: 0.82rem;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 1rem;
      line-height: 1.7;
      margin: 0 auto;
    }
    .glass-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    .glass-card:hover {
      border-color: var(--border-glow);
      transform: translateY(-4px);
      box-shadow: var(--shadow-glow);
    }
    .card-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: rgba(99, 102, 241, 0.15);
      border: 1px solid rgba(99, 102, 241, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #818cf8;
      font-size: 1.35rem;
      margin-bottom: 20px;
    }

    /* 蓝图：Hero 卡片堆叠首屏 (主卡 + 两张侧卡交错) */
    .hero-section {
      min-height: 100vh;
      padding-top: 140px;
      padding-bottom: 80px;
      background: radial-gradient(circle at 50% 10%, rgba(99, 102, 241, 0.22) 0%, transparent 60%),
                  radial-gradient(circle at 85% 30%, rgba(236, 72, 153, 0.15) 0%, transparent 50%),
                  url('/assets/images/99a43df5ebbdd7e5.webp') center/cover no-repeat;
      display: flex;
      align-items: center;
      position: relative;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: rgba(7, 9, 19, 0.88);
      backdrop-filter: blur(4px);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      width: 100%;
    }
    .hero-intro {
      text-align: center;
      max-width: 860px;
      margin: 0 auto 50px auto;
    }
    .hero-intro h1 {
      font-size: 2.8rem;
      font-weight: 800;
      color: #fff;
      line-height: 1.25;
      margin-bottom: 20px;
    }
    .hero-intro h1 span {
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro p {
      font-size: 1.08rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 28px;
    }
    .hero-badges-row {
      display: flex;
      justify-content: center;
      gap: 12px;
      flex-wrap: wrap;
      margin-bottom: 35px;
    }
    .hero-badge-pill {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      padding: 6px 16px;
      border-radius: var(--radius-full);
      font-size: 0.86rem;
      color: #cbd5e1;
    }
    .hero-cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--brand-gradient);
      color: #fff;
      font-size: 1rem;
      font-weight: 600;
      padding: 12px 30px;
      border-radius: var(--radius-full);
      box-shadow: 0 4px 20px rgba(99, 102, 241, 0.5);
    }
    .hero-cta-btn:hover {
      box-shadow: 0 6px 25px rgba(236, 72, 153, 0.6);
      transform: translateY(-2px);
      color: #fff;
    }

    /* 卡片堆叠展示区 */
    .stack-cards-grid {
      display: grid;
      grid-template-columns: 1fr 1.25fr 1fr;
      align-items: center;
      gap: 20px;
      max-width: 1100px;
      margin: 0 auto;
    }
    .stack-card {
      background: rgba(15, 23, 42, 0.85);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      backdrop-filter: blur(12px);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      box-shadow: var(--shadow-card);
    }
    .stack-card.side-left {
      transform: translateY(20px) rotate(-1deg);
      border-color: rgba(99, 102, 241, 0.25);
    }
    .stack-card.side-right {
      transform: translateY(20px) rotate(1deg);
      border-color: rgba(236, 72, 153, 0.25);
    }
    .stack-card.main-card {
      transform: translateY(-10px) scale(1.03);
      z-index: 3;
      border-color: var(--brand-primary);
      box-shadow: 0 15px 40px rgba(99, 102, 241, 0.35);
      background: linear-gradient(180deg, rgba(22, 32, 56, 0.95) 0%, rgba(15, 23, 42, 0.98) 100%);
    }
    .stack-card:hover {
      transform: translateY(-15px) scale(1.05);
      z-index: 4;
    }
    .stack-thumb {
      height: 150px;
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 16px;
    }
    .stack-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 指标看板与数据条 (数据驱动流) */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: linear-gradient(90deg, rgba(30, 41, 59, 0.6) 0%, rgba(15, 23, 42, 0.8) 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      margin-top: -40px;
      position: relative;
      z-index: 10;
      box-shadow: var(--shadow-card);
    }
    .metric-item {
      text-align: center;
      padding: 0 15px;
      border-right: 1px solid rgba(255, 255, 255, 0.08);
    }
    .metric-item:last-child { border-right: none; }
    .metric-number {
      font-size: 2.2rem;
      font-weight: 800;
      color: #fff;
      background: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 6px;
    }
    .metric-label {
      color: var(--text-muted);
      font-size: 0.9rem;
      font-weight: 500;
    }

    /* 服务矩阵与方案卡 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }
    
    /* 结果对比 (台湾五分彩 vs 传统研发) */
    .compare-table-wrap {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
    }
    .compare-header {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      padding: 18px 24px;
      background: rgba(255, 255, 255, 0.03);
      border-bottom: 1px solid var(--border-color);
      font-weight: 700;
      font-size: 1rem;
    }
    .compare-row {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      padding: 16px 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      align-items: center;
      font-size: 0.92rem;
    }
    .compare-row:last-child { border-bottom: none; }
    .compare-good { color: #34d399; font-weight: 600; display: flex; align-items: center; gap: 6px; }
    .compare-bad { color: #94a3b8; display: flex; align-items: center; gap: 6px; }

    /* 里程碑 / 时间线 */
    .timeline-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .timeline-step {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .timeline-step::before {
      content: attr(data-step);
      position: absolute;
      top: 15px;
      right: 18px;
      font-size: 2.4rem;
      font-weight: 900;
      color: rgba(255, 255, 255, 0.05);
      line-height: 1;
    }

    /* 资质与平台保障墙 */
    .trust-badge-card {
      background: rgba(15, 23, 42, 0.5);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
    }
    .trust-badge-card i {
      font-size: 2rem;
      color: #38bdf8;
      margin-bottom: 14px;
    }

    /* 资讯列表模块（CMS） */
    .cms-list-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .cms-item-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .cms-item-card:hover {
      border-color: var(--border-glow);
      transform: translateY(-4px);
    }
    .cms-item-body {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .cms-item-meta {
      display: flex;
      justify-content: space-between;
      color: var(--text-dim);
      font-size: 0.8rem;
      margin-bottom: 10px;
    }
    .cms-item-title {
      font-size: 1.05rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .cms-item-desc {
      color: var(--text-muted);
      font-size: 0.88rem;
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .cms-item-link {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--brand-primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 询盘获客与表单 */
    .inquiry-panel {
      background: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.95) 100%);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-lg);
      padding: 45px;
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-group label {
      display: block;
      color: #cbd5e1;
      font-size: 0.88rem;
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      background: rgba(15, 23, 42, 0.7);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 10px 14px;
      color: #fff;
      font-size: 0.92rem;
      outline: none;
      transition: border-color 0.2s;
    }
    .form-control:focus {
      border-color: var(--brand-primary);
      background: rgba(15, 23, 42, 0.9);
    }
    .privacy-notice {
      color: var(--text-dim);
      font-size: 0.78rem;
      line-height: 1.5;
      margin-top: 10px;
    }
    .form-submit-btn {
      width: 100%;
      background: var(--brand-gradient);
      color: #fff;
      border: none;
      border-radius: var(--radius-sm);
      padding: 12px;
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
      transition: all 0.2s;
    }
    .form-submit-btn:hover {
      opacity: 0.95;
      transform: translateY(-1px);
    }

    /* 常见解答 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px 26px;
    }
    .faq-q {
      font-size: 1.05rem;
      font-weight: 600;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 8px;
    }
    .faq-q i { color: #818cf8; }
    .faq-a {
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.7;
      padding-left: 26px;
    }

    /* 页脚 */
    .site-footer {
      background: #04060b;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 60px 0 30px 0;
      font-size: 0.9rem;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-desc {
      color: var(--text-dim);
      margin-top: 14px;
      max-width: 320px;
      line-height: 1.6;
    }
    .footer-col h5 {
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: #fff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      color: var(--text-dim);
      font-size: 0.82rem;
      flex-wrap: wrap;
      gap: 15px;
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .stack-cards-grid { grid-template-columns: 1fr; max-width: 500px; gap: 24px; }
      .stack-card.side-left, .stack-card.side-right { transform: none; }
      .metrics-bar { grid-template-columns: repeat(2, 1fr); gap: 20px; }
      .metric-item:nth-child(2) { border-right: none; }
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .timeline-steps { grid-template-columns: repeat(2, 1fr); }
      .cms-list-grid { grid-template-columns: repeat(2, 1fr); }
      .inquiry-panel { grid-template-columns: 1fr; gap: 30px; }
      .footer-top { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .hero-intro h1 { font-size: 2.1rem; }
      .grid-3, .grid-4, .grid-2, .cms-list-grid, .timeline-steps { grid-template-columns: 1fr; }
      .compare-header, .compare-row { grid-template-columns: 1.2fr 1fr 1fr; font-size: 0.85rem; padding: 12px 14px; }
      .metrics-bar { grid-template-columns: 1fr; }
      .metric-item { border-right: none; border-bottom: 1px solid rgba(255, 255, 255, 0.06); padding-bottom: 15px; }
      .metric-item:last-child { border-bottom: none; }
      .nav-links { display: none; }
      .footer-top { grid-template-columns: 1fr; }
    }

/* roulang page: article */
:root {
      --bg-dark: #070913;
      --bg-surface: #0f172a;
      --bg-surface-elevated: #162038;
      --brand-primary: #6366f1;
      --brand-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
      --brand-cyan: #06b6d4;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(255, 255, 255, 0.1);
      --border-glow: rgba(99, 102, 241, 0.35);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
      --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.25);
    }
    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--brand-cyan); }
    img { max-width: 100%; height: auto; display: block; }
    .site-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

    .capsule-header-wrapper {
      position: fixed;
      top: 20px;
      left: 0;
      right: 0;
      z-index: 999;
      display: flex;
      justify-content: center;
      padding: 0 16px;
      pointer-events: none;
    }
    .capsule-nav {
      pointer-events: auto;
      background: rgba(15, 23, 42, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-full);
      padding: 8px 24px;
      box-shadow: 0 12px 35px rgba(0,0,0,0.4), 0 0 15px rgba(99, 102, 241, 0.15);
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      max-width: 1080px;
    }
    .capsule-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: 0.5px;
    }
    .capsule-logo-badge {
      width: 34px;
      height: 34px;
      border-radius: var(--radius-full);
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 0.9rem;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 20px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-links li a {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 6px 12px;
      border-radius: var(--radius-full);
      display: block;
    }
    .nav-links li a:hover, .nav-links li a.active {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
    }
    .nav-action-btn {
      background: var(--brand-gradient);
      color: #fff !important;
      padding: 8px 18px !important;
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 600;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    }
    .nav-action-btn:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
    }

    .article-hero {
      position: relative;
      padding-top: 140px;
      padding-bottom: 60px;
      background: radial-gradient(circle at 50% 20%, rgba(99, 102, 241, 0.25) 0%, transparent 70%),
                  radial-gradient(circle at 80% 40%, rgba(236, 72, 153, 0.15) 0%, transparent 60%),
                  url('/assets/images/13cf5c03d0f9a692.webp') center/cover no-repeat;
      border-bottom: 1px solid var(--border-color);
    }
    .article-hero-overlay {
      position: absolute;
      inset: 0;
      background: rgba(7, 9, 19, 0.85);
      backdrop-filter: blur(8px);
    }
    .article-hero-inner {
      position: relative;
      z-index: 2;
      max-width: 980px;
      margin: 0 auto;
    }
    .breadcrumb-row {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.88rem;
      color: var(--text-dim);
      margin-bottom: 20px;
    }
    .breadcrumb-row a { color: var(--text-muted); }
    .breadcrumb-row a:hover { color: var(--brand-cyan); }
    .article-meta-badges {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
      margin-bottom: 20px;
    }
    .badge-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 14px;
      border-radius: var(--radius-full);
      font-size: 0.82rem;
      font-weight: 600;
    }
    .badge-chip.primary {
      background: rgba(99, 102, 241, 0.2);
      border: 1px solid var(--border-glow);
      color: #c7d2fe;
    }
    .badge-chip.neutral {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-color);
      color: var(--text-muted);
    }
    .article-hero-title {
      font-size: 2.5rem;
      font-weight: 800;
      line-height: 1.3;
      color: #fff;
      margin-bottom: 24px;
    }
    .article-summary-card {
      background: rgba(15, 23, 42, 0.75);
      border: 1px solid var(--border-color);
      border-left: 4px solid var(--brand-primary);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      color: var(--text-muted);
      font-size: 1.05rem;
      line-height: 1.8;
      box-shadow: var(--shadow-card);
    }

    /* 预约体验视觉横幅 (根据蓝图：时段选择视觉+预约CTA) */
    .booking-bar-wrap {
      margin-top: 32px;
      background: linear-gradient(135deg, rgba(30, 41, 59, 0.9), rgba(15, 23, 42, 0.95));
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-lg);
      padding: 24px 30px;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
      box-shadow: var(--shadow-glow);
    }
    .booking-slots {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
    }
    .slot-pill {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      color: var(--text-muted);
      cursor: pointer;
      transition: all 0.2s;
    }
    .slot-pill.active, .slot-pill:hover {
      background: rgba(99, 102, 241, 0.2);
      border-color: var(--brand-primary);
      color: #fff;
    }
    .btn-booking {
      background: var(--brand-gradient);
      color: #fff;
      font-weight: 700;
      padding: 12px 28px;
      border-radius: var(--radius-full);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    }
    .btn-booking:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(99, 102, 241, 0.6);
      color: #fff;
    }

    .article-main-layout {
      padding: 60px 0;
    }
    .article-grid {
      display: grid;
      grid-template-columns: 1fr 340px;
      gap: 40px;
    }
    .article-body-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-card);
    }
    .article-prose {
      font-size: 1.05rem;
      line-height: 1.85;
      color: #cbd5e1;
    }
    .article-prose h2, .article-prose h3 {
      color: #fff;
      font-weight: 700;
      margin-top: 36px;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 10px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .article-prose h2::after {
      content: "";
      position: absolute;
      bottom: -1px;
      left: 0;
      width: 60px;
      height: 2px;
      background: var(--brand-gradient);
    }
    .article-prose p {
      margin-bottom: 22px;
    }
    .article-prose ul, .article-prose ol {
      margin-bottom: 24px;
      padding-left: 24px;
    }
    .article-prose li {
      margin-bottom: 10px;
    }
    .article-prose blockquote {
      background: rgba(99, 102, 241, 0.08);
      border-left: 4px solid var(--brand-primary);
      padding: 16px 20px;
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      margin: 24px 0;
      color: #e2e8f0;
      font-style: normal;
    }
    .article-prose img {
      border-radius: var(--radius-md);
      margin: 28px 0;
      border: 1px solid var(--border-color);
    }

    .not-found-box {
      text-align: center;
      padding: 80px 20px;
    }
    .not-found-box i {
      font-size: 4rem;
      color: var(--text-dim);
      margin-bottom: 20px;
    }
    .not-found-box h3 {
      font-size: 1.6rem;
      color: #fff;
      margin-bottom: 12px;
    }
    .not-found-box p {
      color: var(--text-muted);
      margin-bottom: 24px;
    }
    .btn-return {
      background: var(--brand-gradient);
      color: #fff;
      padding: 10px 24px;
      border-radius: var(--radius-full);
      font-weight: 600;
      display: inline-block;
    }

    /* 侧边信息栏 */
    .sidebar-widget {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 26px;
      margin-bottom: 30px;
      box-shadow: var(--shadow-card);
    }
    .sidebar-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
      display: flex;
      align-items: center;
      gap: 10px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      padding-bottom: 12px;
    }
    .sidebar-title i {
      color: var(--brand-primary);
    }
    .spec-item {
      display: flex;
      justify-content: space-between;
      padding: 10px 0;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
      font-size: 0.92rem;
    }
    .spec-label { color: var(--text-dim); }
    .spec-val { color: #fff; font-weight: 500; }
    .feature-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .f-tag {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-color);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 推荐影视轨 / 矩阵推介 (蓝图推荐轨) */
    .recommend-section {
      padding: 60px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      background: #090d1a;
    }
    .section-header-row {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      margin-bottom: 30px;
    }
    .section-title {
      font-size: 1.6rem;
      font-weight: 700;
      color: #fff;
      margin: 0;
    }
    .section-sub {
      color: var(--text-muted);
      font-size: 0.9rem;
      margin-top: 6px;
    }
    .recommend-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .recommend-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .recommend-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-glow);
      box-shadow: var(--shadow-glow);
    }
    .recommend-img {
      width: 100%;
      height: 160px;
      object-fit: cover;
    }
    .recommend-body {
      padding: 18px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .recommend-badge {
      align-self: flex-start;
      font-size: 0.75rem;
      background: rgba(99, 102, 241, 0.15);
      color: #a5b4fc;
      padding: 2px 8px;
      border-radius: var(--radius-sm);
      margin-bottom: 10px;
    }
    .recommend-name {
      font-size: 1.02rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .recommend-desc {
      font-size: 0.84rem;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 14px;
    }

    /* 预约到店 / 接入咨询 CTA */
    .cta-booking-section {
      padding: 70px 0;
      background: radial-gradient(circle at center, rgba(99, 102, 241, 0.15) 0%, transparent 70%), #070913;
    }
    .cta-card {
      background: var(--bg-surface-elevated);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-lg);
      padding: 44px;
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 40px;
      align-items: center;
      box-shadow: 0 16px 40px rgba(0,0,0,0.5);
    }
    .cta-title {
      font-size: 1.8rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }
    .cta-desc {
      color: var(--text-muted);
      font-size: 0.98rem;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .cta-form {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .cta-form input, .cta-form select {
      background: rgba(15, 23, 42, 0.8);
      border: 1px solid var(--border-color);
      color: #fff;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      margin-bottom: 0;
    }
    .cta-form input:focus, .cta-form select:focus {
      border-color: var(--brand-primary);
      box-shadow: 0 0 10px rgba(99, 102, 241, 0.3);
      background: #0f172a;
    }
    .btn-submit {
      background: var(--brand-gradient);
      color: #fff;
      border: none;
      padding: 12px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      cursor: pointer;
      transition: all 0.25s;
    }
    .btn-submit:hover {
      opacity: 0.95;
      transform: translateY(-1px);
    }

    /* 页脚 */
    .site-footer {
      background-color: #04060b;
      border-top: 1px solid var(--border-color);
      padding: 70px 0 30px 0;
      font-size: 0.92rem;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-desc {
      color: var(--text-muted);
      line-height: 1.7;
      font-size: 0.9rem;
      margin-top: 14px;
      max-width: 320px;
    }
    .footer-col h5 {
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--brand-cyan);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      color: var(--text-dim);
      font-size: 0.85rem;
      flex-wrap: wrap;
      gap: 15px;
    }

    @media (max-width: 1024px) {
      .recommend-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-top { grid-template-columns: repeat(2, 1fr); }
      .article-grid { grid-template-columns: 1fr; }
      .booking-bar-wrap { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .capsule-nav { padding: 6px 16px; }
      .nav-links { display: none; }
      .article-hero-title { font-size: 1.8rem; }
      .recommend-grid { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr; }
      .cta-card { grid-template-columns: 1fr; padding: 24px; }
    }

/* roulang page: category1 */
:root {
      --bg-dark: #070913;
      --bg-surface: #0f172a;
      --bg-surface-elevated: #162038;
      --brand-primary: #6366f1;
      --brand-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
      --brand-cyan: #06b6d4;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(255, 255, 255, 0.1);
      --border-glow: rgba(99, 102, 241, 0.35);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
      --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.25);
    }
    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--brand-cyan); }
    img { max-width: 100%; height: auto; display: block; }
    .site-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

    /* 悬浮胶囊导航 */
    .capsule-header-wrapper {
      position: fixed;
      top: 20px;
      left: 0;
      right: 0;
      z-index: 999;
      display: flex;
      justify-content: center;
      padding: 0 16px;
      pointer-events: none;
    }
    .capsule-nav {
      pointer-events: auto;
      background: rgba(15, 23, 42, 0.82);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-full);
      padding: 8px 24px;
      box-shadow: 0 12px 35px rgba(0,0,0,0.4), 0 0 15px rgba(99, 102, 241, 0.15);
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      max-width: 1080px;
    }
    .capsule-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: 0.5px;
    }
    .capsule-logo-badge {
      width: 34px;
      height: 34px;
      border-radius: var(--radius-full);
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 0.9rem;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 20px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-links li a {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 6px 12px;
      border-radius: var(--radius-full);
      display: block;
    }
    .nav-links li a:hover, .nav-links li a.active {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
    }
    .nav-action-btn {
      background: var(--brand-gradient);
      color: #fff !important;
      padding: 8px 18px !important;
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 600;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    }
    .nav-action-btn:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
    }

    /* Section 基础样式 */
    .section-wrap {
      padding: 90px 0;
      position: relative;
    }
    .section-wrap.alt-bg {
      background-color: #0b1021;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 50px auto;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(99, 102, 241, 0.12);
      border: 1px solid var(--border-glow);
      color: #a5b4fc;
      font-size: 0.82rem;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 1.05rem;
      line-height: 1.75;
      margin: 0 auto;
    }

    /* 蓝图：Hero 秒杀闪购条 + 倒计时 + 主推卡 + 抢购CTA */
    .flash-hero {
      padding-top: 130px;
      padding-bottom: 80px;
      background: radial-gradient(circle at 50% 15%, rgba(99, 102, 241, 0.28) 0%, transparent 65%),
                  linear-gradient(180deg, #070913 0%, #0d1326 100%);
      position: relative;
    }
    .flash-sale-bar {
      background: linear-gradient(90deg, rgba(236,72,153,0.2) 0%, rgba(99,102,241,0.25) 50%, rgba(6,182,212,0.2) 100%);
      border: 1px solid rgba(236,72,153,0.4);
      border-radius: var(--radius-full);
      padding: 12px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 40px;
      flex-wrap: wrap;
      gap: 15px;
    }
    .flash-label {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      color: #fff;
      font-size: 0.95rem;
    }
    .flash-tag {
      background: #ec4899;
      color: #fff;
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 800;
      animation: pulseGlow 1.5s infinite alternate;
    }
    @keyframes pulseGlow {
      from { opacity: 0.8; transform: scale(0.96); }
      to { opacity: 1; transform: scale(1.04); }
    }
    .flash-timer {
      display: flex;
      align-items: center;
      gap: 8px;
      font-weight: 600;
      color: var(--brand-cyan);
      font-family: monospace;
      font-size: 1.1rem;
    }
    .timer-block {
      background: rgba(0,0,0,0.5);
      padding: 4px 8px;
      border-radius: 6px;
      border: 1px solid rgba(255,255,255,0.1);
      color: #fff;
    }

    .hero-main-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 2.7rem;
      font-weight: 800;
      color: #fff;
      line-height: 1.25;
      margin-bottom: 20px;
    }
    .hero-h1 span {
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-sub {
      color: var(--text-muted);
      font-size: 1.08rem;
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-price-box {
      display: flex;
      align-items: baseline;
      gap: 15px;
      margin-bottom: 25px;
    }
    .hero-price {
      font-size: 2.2rem;
      font-weight: 900;
      color: #38bdf8;
    }
    .hero-origin {
      text-decoration: line-through;
      color: var(--text-dim);
      font-size: 1.05rem;
    }
    .hero-cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: var(--brand-gradient);
      color: #fff;
      font-weight: 700;
      font-size: 1.1rem;
      padding: 14px 34px;
      border-radius: var(--radius-full);
      box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
      transition: all 0.3s ease;
    }
    .hero-cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(236, 72, 153, 0.6);
      color: #fff;
    }

    /* 指标看板 */
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .metric-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .metric-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--brand-gradient);
    }
    .metric-val {
      font-size: 2.4rem;
      font-weight: 900;
      color: #fff;
      margin-bottom: 8px;
    }
    .metric-val span {
      font-size: 1.1rem;
      color: var(--brand-cyan);
      font-weight: 700;
    }
    .metric-title {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
    }

    /* 服务矩阵 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      transition: all 0.3s ease;
    }
    .matrix-card:hover {
      border-color: var(--border-glow);
      transform: translateY(-5px);
      box-shadow: var(--shadow-glow);
    }
    .matrix-icon {
      width: 56px;
      height: 56px;
      border-radius: var(--radius-md);
      background: rgba(99, 102, 241, 0.15);
      border: 1px solid rgba(99, 102, 241, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #818cf8;
      font-size: 1.45rem;
      margin-bottom: 22px;
    }
    .matrix-h3 {
      font-size: 1.35rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }
    .matrix-p {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    /* 结果对比表格/卡片 */
    .compare-container {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
    }
    .compare-row {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      padding: 22px 30px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      align-items: center;
    }
    .compare-row.header {
      background: rgba(255, 255, 255, 0.03);
      font-weight: 700;
      color: #fff;
      font-size: 1.05rem;
    }
    .compare-row:last-child {
      border-bottom: none;
    }
    .compare-tech {
      color: #cbd5e1;
      font-weight: 600;
    }
    .compare-legacy {
      color: var(--text-dim);
    }
    .compare-ai {
      color: #38bdf8;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 里程碑流程 */
    .milestone-track {
      position: relative;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .milestone-step {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
    }
    .step-number {
      font-size: 2rem;
      font-weight: 900;
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 12px;
      display: block;
    }
    .step-name {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }
    .step-desc {
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.6;
    }

    /* 资讯列表 */
    .posts-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .post-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.3s ease;
    }
    .post-card:hover {
      border-color: var(--border-glow);
      transform: translateY(-4px);
    }
    .post-meta {
      font-size: 0.8rem;
      color: var(--brand-cyan);
      margin-bottom: 12px;
      display: flex;
      justify-content: space-between;
    }
    .post-title {
      font-size: 1.12rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
      line-height: 1.5;
    }
    .post-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .post-read-link {
      font-size: 0.88rem;
      color: #a5b4fc;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-weight: 600;
    }
    .post-read-link:hover {
      color: #fff;
    }

    /* 平台保障 */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .guarantee-box {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      border-left: 4px solid var(--brand-primary);
    }
    .guarantee-box h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }
    .guarantee-box p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
    }

    /* 快速解答 FAQ 折叠 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-question {
      padding: 20px 26px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 1.1rem;
      font-weight: 700;
      color: #fff;
      background: rgba(255, 255, 255, 0.01);
    }
    .faq-answer {
      padding: 0 26px 22px 26px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    /* 转化表单 */
    .form-wrap {
      max-width: 800px;
      margin: 0 auto;
      background: var(--bg-surface);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: 0 15px 40px rgba(0,0,0,0.5);
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      color: #cbd5e1;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 8px;
    }
    .form-control {
      width: 100%;
      background: rgba(255,255,255,0.04);
      border: 1px solid var(--border-color);
      color: #fff;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
    }
    .form-control:focus {
      outline: none;
      border-color: var(--brand-primary);
      background: rgba(255,255,255,0.08);
    }
    .form-submit-btn {
      width: 100%;
      background: var(--brand-gradient);
      color: #fff;
      font-size: 1.1rem;
      font-weight: 700;
      padding: 14px;
      border: none;
      border-radius: var(--radius-full);
      cursor: pointer;
      box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
      transition: all 0.3s ease;
    }
    .form-submit-btn:hover {
      opacity: 0.95;
      transform: translateY(-2px);
    }

    /* Footer */
    .site-footer {
      background: #04060d;
      border-top: 1px solid var(--border-color);
      padding: 70px 0 30px 0;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-desc {
      color: var(--text-dim);
      font-size: 0.92rem;
      line-height: 1.7;
      margin-top: 16px;
      max-width: 320px;
    }
    .footer-col h5 {
      color: #fff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 12px;
    }
    .footer-links li a {
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-links li a:hover {
      color: #fff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-dim);
      font-size: 0.85rem;
      flex-wrap: wrap;
      gap: 15px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .metric-grid { grid-template-columns: repeat(2, 1fr); }
      .matrix-grid { grid-template-columns: repeat(2, 1fr); }
      .milestone-track { grid-template-columns: repeat(2, 1fr); }
      .posts-grid { grid-template-columns: repeat(2, 1fr); }
      .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
      .hero-main-card { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .capsule-nav { padding: 8px 16px; }
      .nav-links { display: none; }
      .metric-grid, .matrix-grid, .posts-grid, .guarantee-grid, .milestone-track { grid-template-columns: 1fr; }
      .compare-row { grid-template-columns: 1fr; gap: 6px; }
      .form-row { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr; }
      .hero-h1 { font-size: 2.1rem; }
    }

/* roulang page: category2 */
:root {
      --bg-dark: #070913;
      --bg-surface: #0f172a;
      --bg-surface-elevated: #162038;
      --brand-primary: #6366f1;
      --brand-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
      --brand-cyan: #06b6d4;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(255, 255, 255, 0.1);
      --border-glow: rgba(99, 102, 241, 0.35);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
      --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.25);
    }
    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--brand-cyan); }
    img { max-width: 100%; height: auto; display: block; }
    .site-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

    /* 悬浮胶囊导航 */
    .capsule-header-wrapper {
      position: fixed;
      top: 20px;
      left: 0;
      right: 0;
      z-index: 999;
      display: flex;
      justify-content: center;
      padding: 0 16px;
      pointer-events: none;
    }
    .capsule-nav {
      pointer-events: auto;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-full);
      padding: 8px 24px;
      box-shadow: 0 12px 35px rgba(0,0,0,0.4), 0 0 15px rgba(99, 102, 241, 0.15);
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      max-width: 1080px;
    }
    .capsule-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: 0.5px;
    }
    .capsule-logo-badge {
      width: 34px;
      height: 34px;
      border-radius: var(--radius-full);
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 0.9rem;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 20px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-links li a {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 6px 12px;
      border-radius: var(--radius-full);
      display: block;
    }
    .nav-links li a:hover, .nav-links li a.active {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
    }
    .nav-action-btn {
      background: var(--brand-gradient);
      color: #fff !important;
      padding: 8px 18px !important;
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 600;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    }
    .nav-action-btn:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
    }

    /* 布局与组件规范 */
    .section-wrap {
      padding: 90px 0;
      position: relative;
    }
    .section-wrap.alt-bg {
      background-color: #0b1021;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px auto;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(99, 102, 241, 0.12);
      border: 1px solid var(--border-glow);
      color: #a5b4fc;
      font-size: 0.82rem;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 1rem;
      line-height: 1.7;
      margin: 0 auto;
    }
    .glass-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
      height: 100%;
    }
    .glass-card:hover {
      border-color: var(--border-glow);
      transform: translateY(-4px);
      box-shadow: var(--shadow-glow);
    }
    .card-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: rgba(99, 102, 241, 0.15);
      border: 1px solid rgba(99, 102, 241, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #818cf8;
      font-size: 1.35rem;
      margin-bottom: 20px;
    }

    /* 随机版式蓝图：Hero 白皮书获客（资料封面 + 目录摘要 + 留资下载） */
    .whitepaper-hero {
      min-height: 92vh;
      padding-top: 130px;
      padding-bottom: 80px;
      background: radial-gradient(circle at 75% 20%, rgba(99, 102, 241, 0.25) 0%, transparent 55%),
                  radial-gradient(circle at 20% 80%, rgba(236, 72, 153, 0.16) 0%, transparent 50%),
                  url('/assets/images/13cf5c03d0f9a692.webp') center/cover no-repeat;
      display: flex;
      align-items: center;
      position: relative;
    }
    .hero-mask {
      position: absolute;
      inset: 0;
      background: rgba(7, 9, 19, 0.90);
      backdrop-filter: blur(4px);
    }
    .whitepaper-cover-box {
      background: linear-gradient(145deg, #1e1b4b, #0f172a);
      border: 2px solid rgba(129, 140, 248, 0.35);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
      position: relative;
    }
    .whitepaper-cover-box::before {
      content: "OFFICIAL TECHNICAL WHITEPAPER";
      display: block;
      font-size: 0.75rem;
      letter-spacing: 2px;
      color: var(--brand-cyan);
      font-weight: 700;
      margin-bottom: 12px;
    }
    .whitepaper-thumb {
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 20px;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .toc-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .toc-list li {
      padding: 8px 0;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
      font-size: 0.92rem;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .toc-list li span.chap {
      color: #c7d2fe;
      font-weight: 600;
    }

    .form-lead-card {
      background: var(--bg-surface-elevated);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-lg);
      padding: 34px;
      box-shadow: var(--shadow-glow);
    }
    .form-lead-card input, .form-lead-card select {
      background: rgba(15, 23, 42, 0.75);
      border: 1px solid var(--border-color);
      color: #fff;
      border-radius: var(--radius-sm);
      height: 46px;
      padding: 0 16px;
      margin-bottom: 16px;
      width: 100%;
    }
    .form-lead-card input:focus, .form-lead-card select:focus {
      border-color: #818cf8;
      outline: none;
      box-shadow: 0 0 10px rgba(129, 140, 248, 0.3);
    }
    .btn-submit {
      width: 100%;
      background: var(--brand-gradient);
      color: #fff;
      font-weight: 700;
      padding: 14px;
      border-radius: var(--radius-full);
      border: none;
      cursor: pointer;
      font-size: 1rem;
      box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
      transition: all 0.25s ease;
    }
    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 25px rgba(99, 102, 241, 0.6);
    }

    /* 指标看板 */
    .metric-badge-box {
      background: rgba(15, 23, 42, 0.6);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      transition: all 0.25s ease;
    }
    .metric-badge-box:hover {
      border-color: var(--brand-cyan);
      transform: translateY(-3px);
    }
    .metric-number {
      font-size: 2.3rem;
      font-weight: 800;
      background: linear-gradient(135deg, #38bdf8, #818cf8);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 4px;
    }
    .metric-label {
      color: var(--text-muted);
      font-size: 0.88rem;
    }

    /* 智能体矩阵服务卡 */
    .agent-matrix-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .agent-avatar-badge {
      display: inline-flex;
      padding: 4px 10px;
      font-size: 0.75rem;
      border-radius: var(--radius-full);
      background: rgba(6, 182, 212, 0.15);
      color: var(--brand-cyan);
      font-weight: 600;
      margin-bottom: 12px;
    }

    /* 对比表格/看板 */
    .compare-container {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
    }
    .compare-row {
      display: flex;
      padding: 20px 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      align-items: center;
    }
    .compare-row.head {
      background: rgba(99, 102, 241, 0.12);
      font-weight: 700;
      color: #fff;
    }
    .compare-col-feature { flex: 1.3; }
    .compare-col-legacy { flex: 1; color: var(--text-dim); }
    .compare-col-xc { flex: 1.2; color: #38bdf8; font-weight: 600; }

    /* 里程碑横向时间轴 */
    .milestone-track {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
      gap: 20px;
      position: relative;
    }
    .milestone-step {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .milestone-step::before {
      content: attr(data-step);
      position: absolute;
      top: 14px;
      right: 16px;
      font-size: 1.4rem;
      font-weight: 900;
      color: rgba(255, 255, 255, 0.06);
    }

    /* 资讯列表网格 */
    .article-post-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .article-post-card:hover {
      border-color: #818cf8;
      transform: translateY(-3px);
    }
    .article-tag {
      font-size: 0.75rem;
      color: var(--brand-cyan);
      margin-bottom: 8px;
      display: block;
      font-weight: 600;
    }
    .article-title-link {
      color: #fff;
      font-size: 1.05rem;
      font-weight: 600;
      line-height: 1.4;
      margin-bottom: 10px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .article-summary-text {
      color: var(--text-muted);
      font-size: 0.86rem;
      line-height: 1.5;
      margin-bottom: 14px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .article-meta-row {
      font-size: 0.78rem;
      color: var(--text-dim);
      display: flex;
      justify-content: space-between;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 10px;
    }

    /* FAQ 手风琴条目 */
    .faq-block {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      padding: 20px 24px;
    }
    .faq-q {
      font-size: 1.08rem;
      font-weight: 700;
      color: #fff;
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 8px;
    }
    .faq-a {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 页脚 */
    .site-footer {
      background-color: #05070e;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 60px 0 30px 0;
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h5 {
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li { margin-bottom: 10px; }
    .footer-links li a { color: var(--text-muted); }
    .footer-links li a:hover { color: #fff; }
    .footer-desc {
      color: var(--text-dim);
      font-size: 0.88rem;
      line-height: 1.7;
      margin-top: 12px;
      max-width: 360px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.82rem;
      color: var(--text-dim);
    }

    @media (max-width: 1024px) {
      .footer-top { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .footer-top { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
      .whitepaper-hero { padding-top: 100px; }
      .compare-row { flex-direction: column; align-items: flex-start; gap: 6px; }
    }

/* roulang page: category3 */
:root {
      --bg-dark: #070913;
      --bg-surface: #0f172a;
      --bg-surface-elevated: #162038;
      --brand-primary: #6366f1;
      --brand-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
      --brand-cyan: #06b6d4;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(255, 255, 255, 0.1);
      --border-glow: rgba(99, 102, 241, 0.35);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
      --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.25);
    }
    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--brand-cyan); }
    img { max-width: 100%; height: auto; display: block; }
    .site-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

    /* 悬浮胶囊导航 */
    .capsule-header-wrapper {
      position: fixed;
      top: 20px;
      left: 0;
      right: 0;
      z-index: 999;
      display: flex;
      justify-content: center;
      padding: 0 16px;
      pointer-events: none;
    }
    .capsule-nav {
      pointer-events: auto;
      background: rgba(15, 23, 42, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-full);
      padding: 8px 24px;
      box-shadow: 0 12px 35px rgba(0,0,0,0.4), 0 0 15px rgba(99, 102, 241, 0.15);
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      max-width: 1080px;
    }
    .capsule-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: 0.5px;
    }
    .capsule-logo-badge {
      width: 34px;
      height: 34px;
      border-radius: var(--radius-full);
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 0.9rem;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 16px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-links li a {
      color: var(--text-muted);
      font-size: 0.92rem;
      font-weight: 500;
      padding: 6px 14px;
      border-radius: var(--radius-full);
      display: block;
    }
    .nav-links li a:hover, .nav-links li a.active {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
      box-shadow: inset 0 0 10px rgba(99, 102, 241, 0.2);
    }
    .nav-action-btn {
      background: var(--brand-gradient);
      color: #fff !important;
      padding: 8px 18px !important;
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 600;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    }
    .nav-action-btn:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
    }

    /* 通用组件 */
    .section-wrap {
      padding: 85px 0;
      position: relative;
    }
    .section-wrap.alt-bg {
      background-color: #0b1021;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 50px auto;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(99, 102, 241, 0.12);
      border: 1px solid var(--border-glow);
      color: #a5b4fc;
      font-size: 0.82rem;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 1rem;
      line-height: 1.7;
      margin: 0 auto;
    }
    .glass-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
      height: 100%;
    }
    .glass-card:hover {
      border-color: var(--border-glow);
      transform: translateY(-4px);
      box-shadow: var(--shadow-glow);
    }

    /* 蓝图：Hero 白皮书获客 (资料封面 + 目录摘要 + 留资下载) */
    .hero-whitepaper {
      padding-top: 140px;
      padding-bottom: 85px;
      background: radial-gradient(circle at 15% 20%, rgba(99, 102, 241, 0.25) 0%, transparent 50%),
                  radial-gradient(circle at 85% 60%, rgba(236, 72, 153, 0.18) 0%, transparent 45%),
                  url('/assets/images/13cf5c03d0f9a692.webp') center/cover no-repeat;
      position: relative;
    }
    .hero-whitepaper-overlay {
      position: absolute;
      inset: 0;
      background: rgba(7, 9, 19, 0.9);
      backdrop-filter: blur(6px);
    }
    .hero-container {
      position: relative;
      z-index: 2;
    }
    .paper-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(236, 72, 153, 0.15);
      border: 1px solid rgba(236, 72, 153, 0.4);
      color: #f472b6;
      font-size: 0.85rem;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: var(--radius-full);
      margin-bottom: 18px;
    }
    .hero-h1 {
      font-size: 2.7rem;
      font-weight: 800;
      line-height: 1.25;
      color: #fff;
      margin-bottom: 18px;
    }
    .hero-h1 span {
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-sub {
      color: var(--text-muted);
      font-size: 1.05rem;
      line-height: 1.75;
      margin-bottom: 28px;
    }
    .paper-summary-box {
      background: rgba(22, 32, 56, 0.65);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      margin-bottom: 30px;
    }
    .paper-toc-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 12px;
      color: var(--text-main);
      font-size: 0.92rem;
    }
    .paper-toc-item:last-child { margin-bottom: 0; }
    .paper-toc-item i { color: var(--brand-cyan); margin-top: 4px; }
    
    .whitepaper-cover-card {
      background: linear-gradient(145deg, #162038 0%, #0f172a 100%);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: 0 20px 45px rgba(0,0,0,0.6);
      position: relative;
    }
    .whitepaper-cover-card img {
      border-radius: var(--radius-md);
      box-shadow: 0 8px 25px rgba(0,0,0,0.5);
      margin-bottom: 20px;
      width: 100%;
      height: 230px;
      object-fit: cover;
    }
    .form-group-custom {
      margin-bottom: 14px;
    }
    .form-group-custom label {
      color: var(--text-muted);
      font-size: 0.85rem;
      margin-bottom: 6px;
      display: block;
    }
    .form-control-custom {
      width: 100%;
      background: rgba(7, 9, 19, 0.7);
      border: 1px solid rgba(255,255,255,0.15);
      color: #fff;
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      outline: none;
      font-size: 0.9rem;
      transition: border 0.3s;
    }
    .form-control-custom:focus {
      border-color: var(--brand-primary);
      box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
    }
    .btn-submit-paper {
      width: 100%;
      background: var(--brand-gradient);
      color: #fff;
      border: none;
      padding: 12px;
      border-radius: var(--radius-full);
      font-weight: 700;
      font-size: 0.95rem;
      cursor: pointer;
      margin-top: 8px;
      box-shadow: 0 4px 18px rgba(99, 102, 241, 0.4);
    }
    .btn-submit-paper:hover {
      box-shadow: 0 6px 24px rgba(99, 102, 241, 0.65);
    }

    /* 指标看板与服务矩阵 */
    .metric-number {
      font-size: 2.4rem;
      font-weight: 800;
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1;
      margin-bottom: 8px;
    }
    .metric-label {
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .data-pill {
      display: inline-block;
      padding: 3px 10px;
      border-radius: var(--radius-full);
      font-size: 0.75rem;
      background: rgba(6, 182, 212, 0.15);
      color: var(--brand-cyan);
      margin-bottom: 12px;
      font-weight: 600;
    }

    /* 结果对比表格 */
    .compare-container {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
    }
    .compare-row {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr;
      padding: 18px 24px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      align-items: center;
    }
    .compare-row:last-child { border-bottom: none; }
    .compare-head {
      background: rgba(22, 32, 56, 0.85);
      font-weight: 700;
      color: #fff;
    }
    .compare-col-featured {
      color: var(--brand-cyan);
      font-weight: 600;
    }

    /* 里程碑流程 */
    .timeline-track {
      position: relative;
      margin-top: 30px;
    }
    .timeline-track::before {
      content: '';
      position: absolute;
      left: 50%;
      top: 0;
      bottom: 0;
      width: 2px;
      background: rgba(99, 102, 241, 0.3);
      transform: translateX(-50%);
    }
    .timeline-node {
      display: flex;
      margin-bottom: 35px;
      position: relative;
    }
    .timeline-node:nth-child(even) {
      flex-direction: row-reverse;
    }
    .timeline-content {
      width: 46%;
      background: var(--bg-surface-elevated);
      border: 1px solid var(--border-color);
      padding: 22px;
      border-radius: var(--radius-md);
    }
    .timeline-dot {
      position: absolute;
      left: 50%;
      top: 20px;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--brand-primary);
      border: 4px solid var(--bg-dark);
      transform: translateX(-50%);
      box-shadow: 0 0 10px var(--brand-primary);
    }

    /* 资讯列表网格 */
    .article-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .article-post-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s;
    }
    .article-post-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-glow);
      box-shadow: var(--shadow-glow);
    }
    .article-post-body {
      padding: 22px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .article-post-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.8rem;
      color: var(--text-dim);
      margin-bottom: 10px;
    }
    .article-post-title {
      font-size: 1.12rem;
      font-weight: 700;
      color: #fff;
      line-height: 1.4;
      margin-bottom: 12px;
    }
    .article-post-title a:hover {
      color: var(--brand-cyan);
    }
    .article-post-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }
    .article-read-more {
      font-size: 0.88rem;
      color: var(--brand-cyan);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* FAQ 手风琴 */
    .faq-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      padding: 20px 24px;
    }
    .faq-q {
      font-size: 1.05rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .faq-q i { color: var(--brand-primary); }
    .faq-a {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      padding-left: 24px;
    }

    /* 落地转化表单 */
    .inquiry-box {
      background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.12) 0%, transparent 70%),
                  var(--bg-surface-elevated);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-lg);
      padding: 45px 35px;
      max-width: 860px;
      margin: 0 auto;
    }

    /* 页脚 */
    .site-footer {
      background: #05070e;
      border-top: 1px solid var(--border-color);
      padding: 70px 0 35px 0;
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-desc {
      line-height: 1.7;
      margin-top: 14px;
      color: var(--text-dim);
    }
    .footer-col h5 {
      color: #fff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 0.88rem;
    }
    .footer-links a:hover {
      color: #fff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.82rem;
      color: var(--text-dim);
      flex-wrap: wrap;
      gap: 15px;
    }

    @media (max-width: 1024px) {
      .footer-top { grid-template-columns: 1fr 1fr; }
      .article-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .hero-h1 { font-size: 2.1rem; }
      .timeline-track::before { left: 20px; }
      .timeline-node, .timeline-node:nth-child(even) { flex-direction: column; padding-left: 45px; }
      .timeline-content { width: 100%; }
      .timeline-dot { left: 20px; }
      .compare-row { grid-template-columns: 1fr; gap: 8px; }
      .article-grid { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr; }
    }

/* roulang page: category4 */
:root {
      --bg-dark: #070913;
      --bg-surface: #0f172a;
      --bg-surface-elevated: #162038;
      --brand-primary: #6366f1;
      --brand-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
      --brand-cyan: #06b6d4;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(255, 255, 255, 0.1);
      --border-glow: rgba(99, 102, 241, 0.35);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
      --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.25);
    }
    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--brand-cyan); }
    img { max-width: 100%; height: auto; display: block; }
    .site-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

    /* 悬浮胶囊导航 */
    .capsule-header-wrapper {
      position: fixed;
      top: 20px;
      left: 0;
      right: 0;
      z-index: 999;
      display: flex;
      justify-content: center;
      padding: 0 16px;
      pointer-events: none;
    }
    .capsule-nav {
      pointer-events: auto;
      background: rgba(15, 23, 42, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-full);
      padding: 8px 24px;
      box-shadow: 0 12px 35px rgba(0,0,0,0.4), 0 0 15px rgba(99, 102, 241, 0.15);
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      max-width: 1080px;
    }
    .capsule-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: 0.5px;
    }
    .capsule-logo-badge {
      width: 34px;
      height: 34px;
      border-radius: var(--radius-full);
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 0.9rem;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 20px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-links li a {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 6px 12px;
      border-radius: var(--radius-full);
      display: block;
    }
    .nav-links li a:hover, .nav-links li a.active {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
    }
    .nav-action-btn {
      background: var(--brand-gradient);
      color: #fff !important;
      padding: 8px 18px !important;
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 600;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    }
    .nav-action-btn:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
    }

    /* 通用组件 */
    .section-wrap {
      padding: 85px 0;
      position: relative;
    }
    .section-wrap.alt-bg {
      background-color: #0b1021;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 50px auto;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(99, 102, 241, 0.12);
      border: 1px solid var(--border-glow);
      color: #a5b4fc;
      font-size: 0.82rem;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 1rem;
      line-height: 1.7;
      margin: 0 auto;
    }
    .glass-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
      height: 100%;
    }
    .glass-card:hover {
      border-color: var(--border-glow);
      transform: translateY(-4px);
      box-shadow: var(--shadow-glow);
    }

    /* 蓝图：Hero 视频官网 + 全宽视频遮罩 + 播放按钮 + 试用 CTA */
    .hero-video-section {
      position: relative;
      min-height: 90vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding-top: 140px;
      padding-bottom: 90px;
      background: url('/assets/images/13cf5c03d0f9a692.webp') center/cover no-repeat;
      overflow: hidden;
    }
    .hero-video-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(7, 9, 19, 0.82) 0%, rgba(7, 9, 19, 0.95) 100%),
                  radial-gradient(circle at 50% 40%, rgba(99, 102, 241, 0.35) 0%, transparent 70%);
      backdrop-filter: blur(5px);
    }
    .hero-video-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }
    .hero-video-content h1 {
      font-size: 3rem;
      font-weight: 800;
      color: #fff;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }
    .hero-video-content h1 span {
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-video-content p {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 35px;
    }
    .hero-video-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }
    .btn-play-trigger {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      padding: 14px 28px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-full);
      color: #fff;
      font-weight: 600;
      font-size: 0.95rem;
      backdrop-filter: blur(10px);
      transition: all 0.3s ease;
    }
    .btn-play-trigger:hover {
      background: rgba(255, 255, 255, 0.16);
      border-color: var(--border-glow);
      color: #fff;
      box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
    }
    .play-icon-circle {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 0.85rem;
    }
    .btn-cta-primary {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 14px 32px;
      background: var(--brand-gradient);
      border-radius: var(--radius-full);
      color: #fff;
      font-weight: 700;
      font-size: 0.95rem;
      box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
    }
    .btn-cta-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(99, 102, 241, 0.6);
      color: #fff;
    }

    /* 指标看板与数据驱动流 */
    .kpi-metric-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      position: relative;
    }
    .kpi-metric-number {
      font-size: 2.6rem;
      font-weight: 800;
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 6px;
      display: inline-block;
    }
    .kpi-metric-label {
      color: var(--text-muted);
      font-size: 0.92rem;
    }
    .kpi-badge {
      display: inline-block;
      padding: 3px 10px;
      border-radius: 20px;
      font-size: 0.75rem;
      font-weight: 600;
      background: rgba(6, 182, 212, 0.15);
      color: var(--brand-cyan);
      margin-top: 10px;
    }

    /* 服务矩阵 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 24px;
    }
    .matrix-item-card {
      background: var(--bg-surface-elevated);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .matrix-item-card:hover {
      border-color: var(--brand-primary);
    }
    .matrix-icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: rgba(99, 102, 241, 0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #a5b4fc;
      font-size: 1.2rem;
      margin-bottom: 18px;
    }

    /* 结果对比表格 */
    .compare-container {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      margin-bottom: 0;
      background: transparent;
    }
    .compare-table th {
      background: rgba(255, 255, 255, 0.04);
      color: #fff;
      padding: 18px 24px;
      font-size: 1rem;
      font-weight: 700;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      color: var(--text-muted);
      font-size: 0.95rem;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .tag-positive {
      color: #10b981;
      font-weight: 600;
    }
    .tag-negative {
      color: #ef4444;
    }

    /* 里程碑流程 */
    .milestone-track {
      position: relative;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .milestone-track::before {
      content: '';
      position: absolute;
      top: 28px;
      left: 30px;
      right: 30px;
      height: 2px;
      background: var(--border-color);
      z-index: 1;
    }
    .milestone-step {
      position: relative;
      z-index: 2;
    }
    .milestone-dot {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: var(--bg-surface-elevated);
      border: 2px solid var(--brand-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: #fff;
      font-size: 1.1rem;
      margin-bottom: 20px;
      box-shadow: 0 0 15px rgba(99, 102, 241, 0.3);
    }

    /* 内容资讯列表卡片 */
    .article-post-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
      transition: all 0.3s ease;
    }
    .article-post-card:hover {
      border-color: var(--border-glow);
      transform: translateY(-4px);
    }
    .article-meta-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 12px;
      font-size: 0.82rem;
      color: var(--text-dim);
    }
    .article-badge-category {
      background: rgba(99, 102, 241, 0.15);
      color: #a5b4fc;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.78rem;
    }

    /* FAQ手风琴 */
    .faq-accordion-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
    }
    .faq-header {
      padding: 20px 24px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-weight: 600;
      color: #fff;
      user-select: none;
    }
    .faq-body {
      padding: 0 24px 20px 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    /* 转化表单 */
    .inquiry-box-wrapper {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(22, 32, 56, 0.95) 100%);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-lg);
      padding: 45px;
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
    }
    .form-input-field {
      width: 100%;
      background: rgba(7, 9, 19, 0.7);
      border: 1px solid var(--border-color);
      color: #fff;
      padding: 12px 18px;
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
      outline: none;
      font-size: 0.95rem;
    }
    .form-input-field:focus {
      border-color: var(--brand-primary);
      box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
    }

    /* 页脚 */
    .site-footer {
      background: #04060b;
      border-top: 1px solid var(--border-color);
      padding: 70px 0 30px 0;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-desc {
      color: var(--text-dim);
      font-size: 0.9rem;
      line-height: 1.7;
      max-width: 340px;
      margin-top: 10px;
    }
    .footer-col h5 {
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-links a:hover {
      color: #fff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-dim);
      font-size: 0.85rem;
      flex-wrap: wrap;
      gap: 15px;
    }

    @media (max-width: 900px) {
      .footer-top { grid-template-columns: 1fr 1fr; }
      .milestone-track { grid-template-columns: 1fr; }
      .milestone-track::before { display: none; }
      .hero-video-content h1 { font-size: 2.3rem; }
      .nav-links { display: none; }
    }
    @media (max-width: 600px) {
      .footer-top { grid-template-columns: 1fr; }
      .section-title { font-size: 1.8rem; }
    }