:root {
      --bg-main: #f8fafc;
      --bg-white: #ffffff;
      --bg-card: rgba(255, 255, 255, 0.92);
      --text-main: #0f172a;
      --text-sub: #334155;
      --text-muted: #64748b;
      --neon-cyan: #06b6d4;
      --neon-cyan-glow: rgba(6, 182, 212, 0.35);
      --neon-purple: #8b5cf6;
      --neon-purple-glow: rgba(139, 92, 246, 0.3);
      --neon-lime: #10b981;
      --neon-pink: #ec4899;
      --gradient-neon: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);
      --gradient-badge: linear-gradient(135deg, rgba(6, 182, 212, 0.12), rgba(139, 92, 246, 0.12));
      --border-light: rgba(226, 232, 240, 0.9);
      --border-neon: rgba(6, 182, 212, 0.28);
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
      --shadow-card: 0 10px 25px -5px rgba(15, 23, 42, 0.06), 0 0 18px -4px var(--neon-cyan-glow);
      --shadow-neon-hover: 0 14px 35px -5px rgba(6, 182, 212, 0.25), 0 0 25px -3px var(--neon-purple-glow);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-width: 1200px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      position: relative;
    }

    body::before {
      content: "";
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: 
        radial-gradient(circle at 12% 15%, rgba(6, 182, 212, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 88% 30%, rgba(139, 92, 246, 0.05) 0%, transparent 45%),
        radial-gradient(circle at 50% 85%, rgba(16, 185, 129, 0.04) 0%, transparent 45%);
      pointer-events: none;
      z-index: -1;
    }

    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(6, 182, 212, 0.2);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
      display: block;
    }

    .brand-text-block {
      display: flex;
      flex-direction: column;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--text-main);
      line-height: 1.2;
    }

    .brand-title span {
      background: var(--gradient-neon);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .brand-sub {
      font-size: 0.72rem;
      color: var(--neon-cyan);
      font-weight: 600;
      letter-spacing: 0.5px;
    }

    .nav-box {
      display: flex;
      align-items: center;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      display: block;
      padding: 8px 11px;
      color: var(--text-sub);
      text-decoration: none;
      font-size: 0.92rem;
      font-weight: 500;
      border-radius: var(--radius-sm);
      transition: all 0.25s ease;
    }

    .nav-links li a:hover {
      color: var(--neon-cyan);
      background: rgba(6, 182, 212, 0.08);
      text-shadow: 0 0 10px var(--neon-cyan-glow);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      background: var(--gradient-neon);
      color: #ffffff;
      font-size: 0.88rem;
      font-weight: 600;
      text-decoration: none;
      border-radius: 999px;
      box-shadow: 0 4px 15px var(--neon-cyan-glow);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      border: 1px solid rgba(255, 255, 255, 0.4);
      cursor: pointer;
      white-space: nowrap;
    }

    .btn-glow:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(6, 182, 212, 0.5), 0 0 15px var(--neon-purple-glow);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
      color: var(--text-main);
    }

    /* 移动端抽屉导航 */
    .mobile-drawer {
      display: none;
      background: #ffffff;
      border-bottom: 1px solid var(--border-light);
      padding: 16px 20px;
    }

    .mobile-drawer.active {
      display: block;
    }

    .mobile-drawer ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .mobile-drawer a {
      display: block;
      padding: 10px 14px;
      font-size: 0.95rem;
      color: var(--text-main);
      text-decoration: none;
      font-weight: 500;
      border-radius: var(--radius-sm);
    }

    .mobile-drawer a:hover {
      background: rgba(6, 182, 212, 0.08);
      color: var(--neon-cyan);
    }

    /* 通用区块排版 */
    section {
      padding: 72px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 48px;
    }

    .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 14px;
      background: var(--gradient-badge);
      border: 1px solid var(--border-neon);
      color: var(--neon-cyan);
      font-size: 0.82rem;
      font-weight: 700;
      border-radius: 999px;
      margin-bottom: 14px;
      box-shadow: 0 0 12px rgba(6, 182, 212, 0.15);
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 首屏 HERO 区域 - 严格无任何图片 */
    .hero-section {
      padding: 80px 0 60px;
      background: linear-gradient(180deg, rgba(6, 182, 212, 0.06) 0%, rgba(248, 250, 252, 0) 100%);
      position: relative;
      overflow: hidden;
    }

    .hero-glow-ring {
      position: absolute;
      top: -120px;
      left: 50%;
      transform: translateX(-50%);
      width: 700px;
      height: 400px;
      background: radial-gradient(ellipse at center, rgba(6, 182, 212, 0.15) 0%, rgba(139, 92, 246, 0.08) 50%, transparent 70%);
      filter: blur(40px);
      pointer-events: none;
      z-index: 0;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid var(--border-neon);
      padding: 6px 18px;
      border-radius: 999px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 24px;
      box-shadow: 0 0 15px rgba(6, 182, 212, 0.2);
    }

    .hero-badge .neon-dot {
      width: 8px;
      height: 8px;
      background: var(--neon-lime);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--neon-lime);
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 900;
      color: var(--text-main);
      letter-spacing: -1px;
      line-height: 1.25;
      margin-bottom: 22px;
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-title .highlight {
      background: var(--gradient-neon);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      text-shadow: 0 0 20px rgba(6, 182, 212, 0.2);
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-sub);
      max-width: 820px;
      margin: 0 auto 36px;
      line-height: 1.8;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 18px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .btn-hero-primary {
      padding: 14px 34px;
      font-size: 1.05rem;
      font-weight: 700;
      color: #ffffff;
      background: var(--gradient-neon);
      border-radius: 999px;
      text-decoration: none;
      box-shadow: 0 8px 30px rgba(6, 182, 212, 0.4), 0 0 20px var(--neon-purple-glow);
      border: 1px solid rgba(255, 255, 255, 0.5);
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    .btn-hero-primary:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 12px 40px rgba(6, 182, 212, 0.55), 0 0 30px var(--neon-purple-glow);
    }

    .btn-hero-secondary {
      padding: 14px 30px;
      font-size: 1.02rem;
      font-weight: 600;
      color: var(--text-main);
      background: #ffffff;
      border: 1px solid var(--border-neon);
      border-radius: 999px;
      text-decoration: none;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-secondary:hover {
      background: rgba(6, 182, 212, 0.05);
      border-color: var(--neon-cyan);
      box-shadow: 0 4px 15px rgba(6, 182, 212, 0.15);
      transform: translateY(-2px);
    }

    /* 纯 CSS 科技数据面板（首屏内） */
    .hero-dashboard-preview {
      background: #ffffff;
      border: 1px solid var(--border-neon);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-card);
      max-width: 1020px;
      margin: 0 auto;
      text-align: left;
    }

    .dashboard-top-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 16px;
      margin-bottom: 24px;
    }

    .sys-status {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-sub);
    }

    .sys-indicator {
      width: 10px;
      height: 10px;
      background: var(--neon-lime);
      border-radius: 50%;
      box-shadow: 0 0 10px var(--neon-lime);
    }

    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-bottom: 24px;
    }

    .metric-card {
      background: rgba(248, 250, 252, 0.85);
      border: 1px solid var(--border-light);
      padding: 16px;
      border-radius: var(--radius-md);
      transition: all 0.25s ease;
    }

    .metric-card:hover {
      border-color: var(--neon-cyan);
      background: #ffffff;
      box-shadow: 0 6px 15px rgba(6, 182, 212, 0.12);
    }

    .metric-title {
      font-size: 0.78rem;
      color: var(--text-muted);
      margin-bottom: 6px;
      font-weight: 600;
    }

    .metric-val {
      font-size: 1.65rem;
      font-weight: 800;
      color: var(--text-main);
      display: flex;
      align-items: baseline;
      gap: 4px;
    }

    .metric-val .neon-text {
      color: var(--neon-cyan);
    }

    .metric-val .unit {
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--text-muted);
    }

    .model-marquee-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      align-items: center;
    }

    .model-tag-label {
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--text-sub);
      margin-right: 6px;
    }

    .model-chip {
      padding: 4px 10px;
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: 6px;
      font-size: 0.78rem;
      color: var(--text-sub);
      font-weight: 500;
      transition: all 0.2s ease;
    }

    .model-chip:hover {
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
      background: rgba(6, 182, 212, 0.05);
    }

    /* 平台介绍与核心实力 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.7rem;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.35;
    }

    .about-text p {
      color: var(--text-sub);
      margin-bottom: 20px;
      font-size: 0.98rem;
      line-height: 1.8;
    }

    .feature-points-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }

    .feature-point-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      background: #ffffff;
      padding: 14px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

    .point-dot {
      width: 8px;
      height: 8px;
      background: var(--neon-cyan);
      border-radius: 50%;
      margin-top: 6px;
      flex-shrink: 0;
      box-shadow: 0 0 6px var(--neon-cyan);
    }

    .point-content strong {
      display: block;
      font-size: 0.92rem;
      color: var(--text-main);
      margin-bottom: 2px;
    }

    .point-content span {
      font-size: 0.8rem;
      color: var(--text-muted);
      line-height: 1.4;
    }

    .about-visual-box {
      background: #ffffff;
      border: 1px solid var(--border-neon);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-card);
      position: relative;
    }

    .ai-cluster-diagram {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .cluster-item {
      padding: 18px;
      background: rgba(248, 250, 252, 0.9);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      border-left: 4px solid var(--neon-cyan);
    }

    .cluster-item:nth-child(2) {
      border-left-color: var(--neon-purple);
    }

    .cluster-item:nth-child(3) {
      border-left-color: var(--neon-lime);
    }

    .cluster-item:nth-child(4) {
      border-left-color: var(--neon-pink);
    }

    .cluster-item h4 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .cluster-item p {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* AIGC 服务能力卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      position: relative;
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      border-color: var(--neon-cyan);
      box-shadow: var(--shadow-neon-hover);
      transform: translateY(-4px);
    }

    .service-icon-box {
      width: 48px;
      height: 48px;
      background: var(--gradient-badge);
      border: 1px solid var(--border-neon);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--neon-cyan);
      font-weight: 800;
      font-size: 1.1rem;
    }

    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: auto;
    }

    .service-tags span {
      background: rgba(241, 245, 249, 0.8);
      font-size: 0.75rem;
      color: var(--text-muted);
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* 一站式制作场景 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .scenario-item {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: all 0.25s ease;
    }

    .scenario-item:hover {
      border-color: var(--neon-purple);
      box-shadow: 0 8px 20px rgba(139, 92, 246, 0.12);
      transform: translateY(-2px);
    }

    .scenario-item h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .scenario-item h4::before {
      content: "";
      width: 6px;
      height: 6px;
      background: var(--neon-cyan);
      border-radius: 50%;
    }

    .scenario-item p {
      font-size: 0.84rem;
      color: var(--text-sub);
      line-height: 1.55;
    }

    /* 行业方案 */
    .solutions-tabs-wrap {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .solution-box {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

    .solution-box:hover {
      border-color: var(--neon-cyan);
      box-shadow: var(--shadow-neon-hover);
    }

    .solution-badge {
      display: inline-block;
      padding: 3px 10px;
      background: rgba(6, 182, 212, 0.1);
      color: var(--neon-cyan);
      font-size: 0.78rem;
      font-weight: 700;
      border-radius: 4px;
      margin-bottom: 12px;
    }

    .solution-box h4 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .solution-box p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .solution-checklist {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .solution-checklist li {
      font-size: 0.85rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .solution-checklist li::before {
      content: "✓";
      color: var(--neon-lime);
      font-weight: bold;
    }

    /* 对比评测板块 */
    .review-score-hero {
      background: #ffffff;
      border: 2px solid var(--border-neon);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-card);
      margin-bottom: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

    .score-summary-left {
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .score-giant-circle {
      width: 110px;
      height: 110px;
      border-radius: 50%;
      background: var(--gradient-badge);
      border: 3px solid var(--neon-cyan);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 25px rgba(6, 182, 212, 0.3);
      flex-shrink: 0;
    }

    .score-giant-circle .val {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--neon-cyan);
      line-height: 1;
    }

    .score-giant-circle .max {
      font-size: 0.78rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    .score-text-meta h3 {
      font-size: 1.55rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .star-rating {
      color: #f59e0b;
      font-size: 1.2rem;
      margin-bottom: 6px;
      letter-spacing: 2px;
    }

    .score-text-meta p {
      font-size: 0.95rem;
      color: var(--text-sub);
    }

    .score-highlights-right {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }

    .highlight-pill {
      background: rgba(248, 250, 252, 0.9);
      border: 1px solid var(--border-light);
      padding: 10px 16px;
      border-radius: var(--radius-md);
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .highlight-pill span {
      color: var(--neon-cyan);
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }

    .comparison-table th, 
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-light);
    }

    .comparison-table th {
      background: #f1f5f9;
      font-weight: 700;
      color: var(--text-main);
    }

    .comparison-table th.highlight-col,
    .comparison-table td.highlight-col {
      background: rgba(6, 182, 212, 0.05);
      border-left: 1px solid rgba(6, 182, 212, 0.2);
      border-right: 1px solid rgba(6, 182, 212, 0.2);
      font-weight: 600;
    }

    .comparison-table tr:last-child td {
      border-bottom: none;
    }

    .status-good {
      color: var(--neon-lime);
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .status-bad {
      color: #94a3b8;
    }

    /* Token比价板块 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .token-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      position: relative;
    }

    .token-card.featured {
      border-color: var(--neon-cyan);
      box-shadow: var(--shadow-neon-hover);
    }

    .token-card.featured::after {
      content: "爆款首选";
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--gradient-neon);
      color: #ffffff;
      font-size: 0.72rem;
      font-weight: 700;
      padding: 2px 10px;
      border-radius: 999px;
    }

    .token-card h4 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .token-price-wrap {
      margin: 18px 0;
      padding: 14px;
      background: rgba(248, 250, 252, 0.9);
      border-radius: var(--radius-sm);
    }

    .price-official {
      font-size: 0.85rem;
      color: var(--text-muted);
      text-decoration: line-through;
      margin-bottom: 4px;
    }

    .price-platform {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--neon-cyan);
    }

    .token-saving {
      display: inline-block;
      background: rgba(16, 185, 129, 0.12);
      color: var(--neon-lime);
      font-size: 0.8rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
      margin-top: 6px;
    }

    .token-features {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 0.88rem;
      color: var(--text-sub);
    }

    /* 标准服务流程 & 服务网络 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
      margin-bottom: 50px;
    }

    .step-item {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 20px 16px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-num {
      width: 36px;
      height: 36px;
      background: var(--gradient-badge);
      border: 1px solid var(--border-neon);
      color: var(--neon-cyan);
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 12px;
    }

    .step-item h4 {
      font-size: 0.98rem;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .step-item p {
      font-size: 0.8rem;
      color: var(--text-muted);
      line-height: 1.45;
    }

    .network-bar {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }

    .network-info h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .network-info p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .network-nodes {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .node-tag {
      background: rgba(241, 245, 249, 0.8);
      border: 1px solid var(--border-light);
      padding: 6px 14px;
      border-radius: 6px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-sub);
    }

    /* 案例中心展示（含图片） */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

    .case-card:hover {
      border-color: var(--neon-cyan);
      box-shadow: var(--shadow-neon-hover);
      transform: translateY(-4px);
    }

    .case-media-box {
      width: 100%;
      height: 200px;
      background: #e2e8f0;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-media-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

    .case-card:hover .case-media-box img {
      transform: scale(1.05);
    }

    .case-info {
      padding: 20px;
    }

    .case-info h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .case-info p {
      font-size: 0.85rem;
      color: var(--text-sub);
      line-height: 1.55;
      margin-bottom: 12px;
    }

    .case-tag {
      display: inline-block;
      font-size: 0.75rem;
      color: var(--neon-cyan);
      background: rgba(6, 182, 212, 0.08);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 客户评价板块 (6条评论) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }

    .review-card:hover {
      border-color: var(--neon-purple);
      box-shadow: 0 10px 25px rgba(139, 92, 246, 0.12);
      transform: translateY(-3px);
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .review-avatar-text {
      width: 44px;
      height: 44px;
      background: var(--gradient-badge);
      border: 1px solid var(--border-neon);
      border-radius: 50%;
      color: var(--neon-cyan);
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.95rem;
      flex-shrink: 0;
    }

    .reviewer-meta h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .reviewer-meta span {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    .review-stars {
      color: #f59e0b;
      font-size: 0.85rem;
      margin-bottom: 10px;
    }

    .review-body {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.65;
    }

    /* 加盟代理板块 */
    .agent-box {
      background: linear-gradient(135deg, #ffffff 0%, rgba(248, 250, 252, 0.95) 100%);
      border: 2px solid var(--border-neon);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-card);
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .agent-content h3 {
      font-size: 1.85rem;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .agent-content p {
      font-size: 0.98rem;
      color: var(--text-sub);
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .agent-perks {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-bottom: 28px;
    }

    .perk-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .perk-item::before {
      content: "★";
      color: var(--neon-cyan);
    }

    .agent-form-box {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-group label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      color: var(--text-main);
      background: #f8fafc;
      transition: all 0.25s ease;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--neon-cyan);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 80px;
    }

    .btn-submit {
      width: 100%;
      padding: 12px;
      background: var(--gradient-neon);
      border: none;
      color: #ffffff;
      font-size: 0.95rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(6, 182, 212, 0.35);
      transition: all 0.3s ease;
    }

    .btn-submit:hover {
      box-shadow: 0 6px 20px rgba(6, 182, 212, 0.5);
      transform: translateY(-2px);
    }

    /* 常见问题 FAQ (手风琴) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }

    .faq-item.active {
      border-color: var(--neon-cyan);
      box-shadow: 0 4px 15px rgba(6, 182, 212, 0.1);
    }

    .faq-question {
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      user-select: none;
      font-weight: 700;
      font-size: 1rem;
      color: var(--text-main);
    }

    .faq-arrow {
      width: 20px;
      height: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: transform 0.3s ease;
      color: var(--neon-cyan);
      font-weight: bold;
    }

    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.3s ease;
      padding: 0 22px;
      color: var(--text-sub);
      font-size: 0.92rem;
      line-height: 1.7;
      background: rgba(248, 250, 252, 0.6);
    }

    .faq-item.active .faq-answer {
      max-height: 260px;
      padding: 14px 22px 20px;
      border-top: 1px solid var(--border-light);
    }

    /* AI百科 & 帮助中心 */
    .knowledge-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .knowledge-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
    }

    .knowledge-card h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--neon-cyan);
      margin-bottom: 8px;
    }

    .knowledge-card p {
      font-size: 0.85rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 行业资讯 & 最新文章 */
    .news-articles-wrap {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 30px;
    }

    .news-list-box {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
    }

    .news-link-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 0;
      border-bottom: 1px solid var(--border-light);
      text-decoration: none;
      color: var(--text-main);
      transition: color 0.2s ease;
    }

    .news-link-row:last-child {
      border-bottom: none;
    }

    .news-link-row:hover {
      color: var(--neon-cyan);
    }

    .news-title {
      font-size: 0.95rem;
      font-weight: 600;
    }

    .news-date {
      font-size: 0.8rem;
      color: var(--text-muted);
      flex-shrink: 0;
    }

    .news-side-banner {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-side-banner h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .news-side-banner p {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    /* 联系我们 */
    .contact-card-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 30px;
    }

    .contact-item {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 22px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .contact-item h5 {
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .contact-item p {
      font-size: 0.88rem;
      color: var(--neon-cyan);
      font-weight: 600;
    }

    .qr-showcase-box {
      background: #ffffff;
      border: 1px solid var(--border-neon);
      border-radius: var(--radius-md);
      padding: 26px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 30px;
      max-width: 580px;
      margin: 0 auto;
      box-shadow: var(--shadow-sm);
    }

    .qr-img-wrap {
      width: 130px;
      height: 130px;
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid var(--border-light);
      flex-shrink: 0;
    }

    .qr-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .qr-info h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .qr-info p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-light);
      padding: 50px 0 24px;
      margin-top: 50px;
      color: var(--text-sub);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 36px;
    }

    .footer-brand p {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-top: 12px;
      max-width: 380px;
      line-height: 1.65;
    }

    .footer-nav-col h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    .footer-nav-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-nav-col a {
      font-size: 0.85rem;
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.2s ease;
    }

    .footer-nav-col a:hover {
      color: var(--neon-cyan);
    }

    .footer-friends-bar {
      border-top: 1px solid var(--border-light);
      padding: 20px 0;
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friends-label {
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .footer-friends-bar a {
      font-size: 0.82rem;
      color: var(--text-muted);
      text-decoration: none;
      margin-right: 10px;
      transition: color 0.2s ease;
    }

    .footer-friends-bar a:hover {
      color: var(--neon-cyan);
    }

    .footer-bottom-copy {
      border-top: 1px solid var(--border-light);
      padding-top: 20px;
      text-align: center;
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 浮动操作栏与返回顶部 */
    .float-widget {
      position: fixed;
      bottom: 30px;
      right: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-neon);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-main);
      text-decoration: none;
      font-weight: 700;
      font-size: 0.85rem;
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .float-btn:hover {
      background: var(--gradient-neon);
      color: #ffffff;
      box-shadow: 0 6px 20px var(--neon-cyan-glow);
      transform: translateY(-2px);
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 2.2rem;
      }
      .services-grid, 
      .token-grid, 
      .case-gallery-grid, 
      .reviews-grid,
      .solutions-tabs-wrap {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenarios-grid,
      .knowledge-grid,
      .contact-card-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(3, 1fr);
      }
      .hero-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .agent-box {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links, .header-actions {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 1.8rem;
      }
      .hero-desc {
        font-size: 1rem;
      }
      .about-grid,
      .news-articles-wrap,
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .services-grid, 
      .token-grid, 
      .case-gallery-grid, 
      .reviews-grid,
      .solutions-tabs-wrap,
      .scenarios-grid,
      .knowledge-grid,
      .contact-card-grid,
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .score-summary-left {
        flex-direction: column;
        text-align: center;
      }
      .qr-showcase-box {
        flex-direction: column;
        text-align: center;
      }
      .hero-metrics-grid {
        grid-template-columns: 1fr;
      }
    }