/* roulang page: index */
:root {
      --bg-dark: #060b19;
      --bg-darker: #040711;
      --bg-card: rgba(15, 23, 42, 0.72);
      --border-card: rgba(56, 189, 248, 0.16);
      --border-card-hover: rgba(56, 189, 248, 0.45);
      --primary: #2563eb;
      --primary-light: #38bdf8;
      --accent-green: #10b981;
      --accent-amber: #f59e0b;
      --text-white: #ffffff;
      --text-gray: #94a3b8;
      --text-dim: #64748b;
      --shadow-glow: 0 0 25px rgba(37, 99, 235, 0.35);
      --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

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

    body {
      font-family: var(--font-stack);
      background-color: var(--bg-dark);
      color: var(--text-white);
      line-height: 1.65;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 15% 15%, rgba(37, 99, 235, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 85% 85%, rgba(56, 189, 248, 0.08) 0%, transparent 50%);
      background-attachment: fixed;
    }

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

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

    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 clamp(1.2rem, 3.5vw, 2.5rem);
    }

    /* 顶部通栏 */
    .topbar {
      background: rgba(4, 7, 17, 0.85);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 0.85rem;
      color: var(--text-gray);
      padding: 0.55rem 0;
    }
    .topbar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.8rem;
    }
    .topbar-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      color: var(--primary-light);
    }
    .topbar-dot {
      width: 7px;
      height: 7px;
      background: var(--accent-green);
      border-radius: 50%;
      box-shadow: 0 0 6px var(--accent-green);
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(6, 11, 25, 0.88);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-card);
      transition: background 0.3s ease;
    }
    .navbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-white);
      letter-spacing: 0.5px;
    }
    .brand-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 12px rgba(56, 189, 248, 0.5);
    }
    .brand-icon svg {
      width: 20px;
      height: 20px;
      fill: #ffffff;
    }
    .nav-menu {
      display: flex;
      list-style: none;
      align-items: center;
      gap: 1.8rem;
    }
    .nav-item a {
      color: var(--text-gray);
      font-size: 0.95rem;
      font-weight: 500;
      position: relative;
      padding: 0.3rem 0;
    }
    .nav-item a:hover, .nav-item a.active {
      color: var(--primary-light);
    }
    .nav-item a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary-light);
      transition: width 0.3s ease;
    }
    .nav-item a:hover::after, .nav-item a.active::after {
      width: 100%;
    }
    .nav-cta {
      background: linear-gradient(135deg, var(--primary), #0284c7);
      color: #ffffff !important;
      padding: 0.6rem 1.35rem;
      border-radius: var(--radius-sm);
      font-weight: 600;
      box-shadow: var(--shadow-glow);
      display: inline-block;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .nav-cta:hover {
      box-shadow: 0 0 25px rgba(56, 189, 248, 0.7);
      transform: translateY(-2px);
    }

    /* 移动端汉堡按钮 */
    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-card);
      color: var(--text-white);
      padding: 0.5rem;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }
    .menu-toggle svg {
      width: 24px;
      height: 24px;
      stroke: currentColor;
    }

    /* 公共 Section 规范 */
    .section-wrap {
      padding: clamp(4rem, 7vw, 6.5rem) 0;
      position: relative;
    }
    .section-alt {
      background: linear-gradient(180deg, rgba(8, 15, 34, 0.8) 0%, rgba(5, 9, 20, 0.9) 100%);
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-header {
      max-width: 780px;
      margin-bottom: clamp(2.5rem, 5vw, 4rem);
    }
    .section-header.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }
    .tag-badge {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary-light);
      background: rgba(56, 189, 248, 0.1);
      border: 1px solid rgba(56, 189, 248, 0.25);
      padding: 0.35rem 0.9rem;
      border-radius: 999px;
      margin-bottom: 0.9rem;
    }
    .section-title {
      font-size: clamp(1.85rem, 3.2vw, 2.5rem);
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 1.1rem;
      color: #ffffff;
    }
    .section-desc {
      color: var(--text-gray);
      font-size: 1.02rem;
      line-height: 1.7;
    }

    /* 玻璃卡片 */
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-card);
      transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
    }
    .glass-card:hover {
      border-color: var(--border-card-hover);
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.6), 0 0 16px rgba(56, 189, 248, 0.2);
      transform: translateY(-4px);
    }

    /* 1. Hero 杂志分栏首屏 */
    .hero-section {
      padding: clamp(3.5rem, 6vw, 5.5rem) 0 4rem 0;
      position: relative;
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(6, 11, 25, 0.96) 35%, rgba(8, 15, 34, 0.88) 100%);
      z-index: 1;
    }
    .hero-container {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: clamp(2rem, 4vw, 3.5rem);
      align-items: center;
    }
    .hero-title {
      font-size: clamp(2.3rem, 4.4vw, 3.6rem);
      font-weight: 800;
      line-height: 1.22;
      margin-bottom: 1.4rem;
      background: linear-gradient(180deg, #ffffff 60%, #cbd5e1 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-title span {
      background: linear-gradient(135deg, var(--primary-light), #60a5fa);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-summary {
      color: var(--text-gray);
      font-size: 1.1rem;
      line-height: 1.8;
      margin-bottom: 2rem;
    }
    .hero-actions {
      display: flex;
      gap: 1.2rem;
      align-items: center;
      flex-wrap: wrap;
    }
    .btn-main {
      background: linear-gradient(135deg, var(--primary), #0284c7);
      color: #fff;
      font-weight: 600;
      font-size: 1.05rem;
      padding: 0.9rem 2.2rem;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      box-shadow: var(--shadow-glow);
      border: 1px solid rgba(255, 255, 255, 0.25);
    }
    .btn-main:hover {
      box-shadow: 0 0 30px rgba(56, 189, 248, 0.7);
      transform: translateY(-2px);
    }
    .btn-ghost {
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #ffffff;
      padding: 0.9rem 1.8rem;
      border-radius: var(--radius-sm);
      font-weight: 500;
      backdrop-filter: blur(6px);
    }
    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: var(--primary-light);
    }
    .hero-spotlight-card {
      padding: 2.2rem;
      border-radius: var(--radius-lg);
      background: rgba(13, 23, 48, 0.75);
      border: 1px solid rgba(56, 189, 248, 0.28);
      position: relative;
    }
    .spotlight-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 1.5rem;
      padding-bottom: 1rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .spotlight-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary-light);
    }
    .spotlight-metric-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.2rem;
    }
    .spotlight-metric {
      background: rgba(4, 7, 17, 0.5);
      padding: 1.1rem;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.05);
    }
    .metric-value {
      font-size: 1.85rem;
      font-weight: 800;
      color: #ffffff;
      line-height: 1.1;
      margin-bottom: 0.35rem;
    }
    .metric-value.highlight {
      color: var(--accent-green);
    }
    .metric-label {
      font-size: 0.85rem;
      color: var(--text-gray);
    }

    /* 2. 问题陈述：合同违约常见法律争议痛点 */
    .painpoint-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.6rem;
    }
    .pain-card {
      padding: 1.8rem;
      border-left: 4px solid var(--accent-amber);
    }
    .pain-card.crit {
      border-left-color: #ef4444;
    }
    .pain-title {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 0.8rem;
      color: #ffffff;
    }
    .pain-desc {
      color: var(--text-gray);
      font-size: 0.95rem;
      line-height: 1.65;
    }

    /* 3. 诊断与资质操作演示：雷达分析与审查质控 */
    .audit-split {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 3rem;
      align-items: center;
    }
    .audit-image-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-card);
      position: relative;
    }
    .audit-flow {
      display: flex;
      flex-direction: column;
      gap: 1.4rem;
    }
    .flow-item {
      display: flex;
      gap: 1.2rem;
      align-items: flex-start;
      padding: 1.2rem;
      border-radius: var(--radius-sm);
      background: rgba(15, 23, 42, 0.45);
      border: 1px solid rgba(255, 255, 255, 0.04);
    }
    .flow-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(37, 99, 235, 0.2);
      border: 1px solid var(--primary-light);
      color: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      flex-shrink: 0;
    }
    .flow-text h4 {
      font-size: 1.1rem;
      margin-bottom: 0.35rem;
      color: #ffffff;
    }
    .flow-text p {
      font-size: 0.92rem;
      color: var(--text-gray);
      line-height: 1.6;
    }

    /* 4. 核心优势六矩阵 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.6rem;
    }
    .matrix-card {
      padding: 2rem;
      position: relative;
      overflow: hidden;
    }
    .matrix-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--primary-light), transparent);
    }
    .matrix-icon-box {
      width: 48px;
      height: 48px;
      background: rgba(56, 189, 248, 0.12);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 1.2rem;
      color: var(--primary-light);
    }
    .matrix-icon-box svg {
      width: 24px;
      height: 24px;
      fill: currentColor;
    }
    .matrix-title {
      font-size: 1.2rem;
      margin-bottom: 0.75rem;
      color: #ffffff;
    }
    .matrix-desc {
      color: var(--text-gray);
      font-size: 0.95rem;
      line-height: 1.65;
    }

    /* 5. 服务矩阵/热门业务区 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.8rem;
    }
    .service-card {
      display: flex;
      flex-direction: column;
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .service-thumb {
      height: 190px;
      overflow: hidden;
      position: relative;
    }
    .service-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .service-card:hover .service-thumb img {
      transform: scale(1.05);
    }
    .service-body {
      padding: 1.8rem;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .service-tag {
      font-size: 0.8rem;
      color: var(--accent-green);
      font-weight: 600;
      margin-bottom: 0.6rem;
    }
    .service-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.9rem;
      color: #ffffff;
    }
    .service-desc {
      color: var(--text-gray);
      font-size: 0.93rem;
      line-height: 1.65;
      margin-bottom: 1.4rem;
      flex-grow: 1;
    }
    .service-meta-box {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 1rem;
      display: flex;
      justify-content: space-between;
      font-size: 0.85rem;
      color: var(--text-dim);
    }

    /* 6. 深色实战结果对比区 */
    .comparison-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
    }
    .compare-card {
      padding: 2.2rem;
      border-radius: var(--radius-md);
    }
    .compare-card.traditional {
      background: rgba(15, 23, 42, 0.4);
      border: 1px dashed rgba(255, 255, 255, 0.15);
    }
    .compare-card.advanced {
      background: rgba(13, 27, 62, 0.8);
      border: 1px solid var(--primary-light);
      position: relative;
      box-shadow: 0 0 25px rgba(37, 99, 235, 0.2);
    }
    .compare-head {
      margin-bottom: 1.8rem;
      padding-bottom: 1rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .compare-head h3 {
      font-size: 1.35rem;
      margin-bottom: 0.35rem;
    }
    .compare-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 1.2rem;
    }
    .compare-item {
      display: flex;
      gap: 0.85rem;
      font-size: 0.96rem;
      line-height: 1.6;
    }
    .compare-item.bad {
      color: #cbd5e1;
    }
    .compare-item.good {
      color: #ffffff;
    }

    /* 7. 里程碑重大纠纷纪实 */
    .milestone-timeline {
      position: relative;
      max-width: 900px;
      margin: 0 auto;
      padding: 2rem 0;
    }
    .milestone-timeline::after {
      content: '';
      position: absolute;
      width: 2px;
      background: rgba(56, 189, 248, 0.25);
      top: 0;
      bottom: 0;
      left: 50%;
      margin-left: -1px;
    }
    .timeline-node {
      padding: 1.2rem 2rem;
      position: relative;
      width: 50%;
    }
    .timeline-node.left {
      left: 0;
      text-align: right;
    }
    .timeline-node.right {
      left: 50%;
      text-align: left;
    }
    .node-dot {
      position: absolute;
      width: 14px;
      height: 14px;
      background: var(--primary-light);
      border: 3px solid var(--bg-dark);
      border-radius: 50%;
      top: 1.8rem;
      box-shadow: 0 0 10px var(--primary-light);
    }
    .timeline-node.left .node-dot {
      right: -7px;
    }
    .timeline-node.right .node-dot {
      left: -7px;
    }
    .node-card {
      padding: 1.5rem;
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-sm);
    }
    .node-year {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--primary-light);
      margin-bottom: 0.4rem;
    }
    .node-title {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
      color: #ffffff;
    }
    .node-desc {
      font-size: 0.9rem;
      color: var(--text-gray);
      line-height: 1.6;
    }

    /* 8. 真实用户诉讼故事 */
    .case-story-card {
      display: grid;
      grid-template-columns: 1fr 1fr;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-card);
      background: rgba(15, 23, 42, 0.85);
    }
    .story-image-side {
      position: relative;
      min-height: 380px;
    }
    .story-image-side img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .story-content-side {
      padding: clamp(2rem, 4vw, 3.5rem);
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .story-meta {
      font-size: 0.85rem;
      color: var(--accent-amber);
      font-weight: 600;
      margin-bottom: 0.6rem;
    }
    .story-title {
      font-size: 1.55rem;
      font-weight: 700;
      margin-bottom: 1.2rem;
      line-height: 1.35;
    }
    .story-para {
      color: var(--text-gray);
      font-size: 0.98rem;
      line-height: 1.7;
      margin-bottom: 1.4rem;
    }
    .story-result-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      background: rgba(16, 185, 129, 0.12);
      border: 1px solid rgba(16, 185, 129, 0.3);
      color: var(--accent-green);
      padding: 0.6rem 1.2rem;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.92rem;
    }

    /* 9. 关键实效数据统计条 */
    .metrics-bar-wrap {
      background: linear-gradient(90deg, #09132b 0%, #0c1b3d 50%, #09132b 100%);
      border-top: 1px solid var(--border-card);
      border-bottom: 1px solid var(--border-card);
      padding: 3.5rem 0;
    }
    .metrics-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
      text-align: center;
    }
    .metric-big-num {
      font-size: clamp(2.2rem, 3.8vw, 3.2rem);
      font-weight: 800;
      color: #ffffff;
      line-height: 1;
      margin-bottom: 0.6rem;
      background: linear-gradient(180deg, #ffffff 40%, var(--primary-light) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .metric-sub-label {
      color: var(--text-gray);
      font-size: 0.95rem;
      font-weight: 500;
    }

    /* 10. 当事人评价瀑布网格 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.8rem;
    }
    .testi-card {
      padding: 2.2rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-text {
      color: #e2e8f0;
      font-size: 0.98rem;
      line-height: 1.7;
      margin-bottom: 1.6rem;
      font-style: normal;
    }
    .testi-author-info {
      display: flex;
      align-items: center;
      gap: 1rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 1.2rem;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
      font-size: 1.1rem;
    }
    .author-details h5 {
      font-size: 1rem;
      color: #ffffff;
      margin-bottom: 0.2rem;
    }
    .author-details p {
      font-size: 0.82rem;
      color: var(--text-dim);
    }

    /* 11. 司法判例与裁判动态 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.8rem;
    }
    .news-card {
      padding: 2rem;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 0.82rem;
      color: var(--primary-light);
      margin-bottom: 0.6rem;
      font-weight: 600;
    }
    .news-headline {
      font-size: 1.18rem;
      color: #ffffff;
      line-height: 1.45;
      margin-bottom: 0.9rem;
      font-weight: 700;
    }
    .news-abstract {
      color: var(--text-gray);
      font-size: 0.92rem;
      line-height: 1.65;
      margin-bottom: 1.4rem;
      flex-grow: 1;
    }
    .news-link {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      color: var(--primary-light);
      font-size: 0.9rem;
      font-weight: 600;
    }
    .news-link:hover {
      text-decoration: underline;
    }

    /* 12. 平台保障机制四列 */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .guarantee-box {
      padding: 1.8rem;
      text-align: center;
    }
    .guarantee-icon {
      width: 52px;
      height: 52px;
      margin: 0 auto 1.2rem auto;
      background: rgba(37, 99, 235, 0.15);
      border: 1px solid rgba(56, 189, 248, 0.3);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-light);
    }
    .guarantee-icon svg {
      width: 26px;
      height: 26px;
      fill: currentColor;
    }
    .guarantee-title {
      font-size: 1.1rem;
      color: #ffffff;
      margin-bottom: 0.6rem;
      font-weight: 700;
    }
    .guarantee-desc {
      color: var(--text-gray);
      font-size: 0.88rem;
      line-height: 1.6;
    }

    /* 13. FAQ 手风琴面板 */
    .faq-wrapper {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    .faq-panel {
      border: 1px solid var(--border-card);
      border-radius: var(--radius-sm);
      background: var(--bg-card);
      overflow: hidden;
      transition: border-color 0.25s ease;
    }
    .faq-panel:hover {
      border-color: var(--border-card-hover);
    }
    .faq-question {
      padding: 1.3rem 1.8rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 600;
      font-size: 1.05rem;
      color: #ffffff;
      user-select: none;
    }
    .faq-icon {
      font-size: 1.3rem;
      color: var(--primary-light);
      transition: transform 0.3s ease;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: rgba(4, 7, 17, 0.4);
      padding: 0 1.8rem;
    }
    .faq-panel.active .faq-answer {
      max-height: 300px;
      padding: 1.2rem 1.8rem 1.5rem 1.8rem;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    .faq-panel.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer p {
      color: var(--text-gray);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    /* 14. 转化表单区 */
    .conversion-panel {
      background: linear-gradient(135deg, rgba(13, 27, 62, 0.92) 0%, rgba(6, 11, 25, 0.95) 100%);
      border: 1px solid var(--primary-light);
      border-radius: var(--radius-lg);
      padding: clamp(2rem, 5vw, 4rem);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      box-shadow: 0 0 40px rgba(37, 99, 235, 0.25);
    }
    .cta-text-side h3 {
      font-size: clamp(1.8rem, 3vw, 2.3rem);
      font-weight: 800;
      margin-bottom: 1.2rem;
      line-height: 1.3;
    }
    .cta-text-side p {
      color: var(--text-gray);
      font-size: 1.02rem;
      line-height: 1.75;
      margin-bottom: 1.8rem;
    }
    .cta-features {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.9rem;
      margin-bottom: 2rem;
    }
    .cta-features li {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      color: #e2e8f0;
      font-size: 0.95rem;
    }
    .cta-features li span {
      color: var(--accent-green);
      font-weight: 700;
    }
    .consult-form {
      display: flex;
      flex-direction: column;
      gap: 1.2rem;
    }
    .form-group label {
      display: block;
      font-size: 0.88rem;
      color: #cbd5e1;
      margin-bottom: 0.45rem;
      font-weight: 500;
    }
    .form-control {
      width: 100%;
      padding: 0.85rem 1.1rem;
      background: rgba(4, 7, 17, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      color: #ffffff;
      font-size: 0.95rem;
      font-family: inherit;
      outline: none;
      transition: border-color 0.25s ease;
    }
    .form-control:focus {
      border-color: var(--primary-light);
      box-shadow: 0 0 10px rgba(56, 189, 248, 0.3);
    }
    .form-submit-btn {
      background: linear-gradient(135deg, var(--primary), #0284c7);
      border: none;
      color: #ffffff;
      padding: 1rem;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: var(--shadow-glow);
      transition: all 0.25s ease;
      margin-top: 0.5rem;
    }
    .form-submit-btn:hover {
      box-shadow: 0 0 30px rgba(56, 189, 248, 0.8);
      transform: translateY(-2px);
    }
    .form-privacy-note {
      font-size: 0.78rem;
      color: var(--text-dim);
      text-align: center;
      line-height: 1.5;
    }

    /* 页脚 */
    .site-footer {
      background: var(--bg-darker);
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 4rem 0 2rem 0;
      font-size: 0.9rem;
      color: var(--text-dim);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.8fr 1fr 1fr 1.4fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }
    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.25rem;
      margin-bottom: 1rem;
    }
    .footer-brand p {
      line-height: 1.7;
      color: var(--text-gray);
      margin-bottom: 1.2rem;
    }
    .footer-title {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 1.2rem;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.7rem;
    }
    .footer-links a:hover {
      color: var(--primary-light);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
    }
    .copyright-text {
      color: var(--text-dim);
      font-size: 0.85rem;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
      }
      .audit-split {
        grid-template-columns: 1fr;
      }
      .services-grid,
      .matrix-grid,
      .testimonials-grid,
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-bar-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .topbar {
        display: none;
      }
      .navbar {
        height: 64px;
      }
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(6, 11, 25, 0.98);
        border-bottom: 1px solid var(--border-card);
        flex-direction: column;
        padding: 1.8rem;
        gap: 1.2rem;
        display: none;
      }
      .nav-menu.open {
        display: flex;
      }
      .painpoint-grid,
      .services-grid,
      .matrix-grid,
      .testimonials-grid,
      .news-grid,
      .comparison-container,
      .guarantee-grid,
      .conversion-panel,
      .case-story-card {
        grid-template-columns: 1fr;
      }
      .milestone-timeline::after {
        left: 20px;
      }
      .timeline-node {
        width: 100%;
        padding-left: 50px;
        padding-right: 0;
        text-align: left !important;
      }
      .timeline-node.left {
        left: 0;
      }
      .timeline-node.right {
        left: 0;
      }
      .timeline-node.left .node-dot,
      .timeline-node.right .node-dot {
        left: 13px;
        right: auto;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .metrics-bar-grid {
        grid-template-columns: 1fr;
      }
    }