:root {
      --primary: #4f46e5;
      --primary-light: #6366f1;
      --primary-dark: #3730a3;
      --secondary: #ec4899;
      --accent-cyan: #06b6d4;
      --accent-amber: #f59e0b;
      --accent-emerald: #10b981;
      --accent-violet: #8b5cf6;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-sub: #334155;
      --text-muted: #64748b;
      --border-light: #e2e8f0;
      --border-vibrant: #cbd5e1;
      --gradient-vibrant: linear-gradient(135deg, #4f46e5 0%, #ec4899 50%, #f59e0b 100%);
      --gradient-cool: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);
      --gradient-warm: linear-gradient(135deg, #f43f5e 0%, #fb923c 100%);
      --shadow-vibrant: 0 10px 25px -5px rgba(79, 70, 229, 0.2), 0 8px 10px -6px rgba(236, 72, 153, 0.2);
      --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --container-max: 1240px;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      position: relative;
    }

    body::before {
      content: "";
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, rgba(236, 72, 153, 0.05) 0%, transparent 40%),
                  radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.04) 0%, transparent 50%);
      pointer-events: none;
      z-index: -1;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 2px solid transparent;
      border-image: linear-gradient(90deg, #4f46e5, #ec4899, #06b6d4) 1;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    }

    .nav-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: 42px;
      width: auto;
      object-fit: contain;
    }

    .brand-text {
      font-weight: 800;
      font-size: 1.25rem;
      background: var(--gradient-vibrant);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      list-style: none;
      align-items: center;
      gap: 0; /* 严格执行规则 */
    }

    .nav-links li a {
      display: block;
      padding: 8px 13px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-sub);
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      white-space: nowrap;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background: rgba(79, 70, 229, 0.08);
    }

    .nav-cta-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      font-size: 0.95rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      border: 2px solid transparent;
      text-align: center;
    }

    .btn-vibrant {
      background: var(--gradient-vibrant);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(236, 72, 153, 0.35);
    }

    .btn-vibrant:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(236, 72, 153, 0.5);
      color: #ffffff;
    }

    .btn-hero-portal {
      background: linear-gradient(135deg, #f59e0b 0%, #ef4444 50%, #ec4899 100%);
      color: #ffffff;
      font-size: 1.1rem;
      padding: 14px 34px;
      font-weight: 800;
      box-shadow: 0 10px 30px rgba(245, 158, 11, 0.45);
      animation: pulseGlow 2.5s infinite alternate;
    }

    @keyframes pulseGlow {
      0% {
        box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
        transform: scale(1);
      }
      100% {
        box-shadow: 0 12px 35px rgba(236, 72, 153, 0.65);
        transform: scale(1.03);
      }
    }

    .btn-outline-vibrant {
      border: 2px solid var(--primary);
      color: var(--primary);
      background: #ffffff;
    }

    .btn-outline-vibrant:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-2px);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      padding: 8px;
      cursor: pointer;
    }

    .menu-toggle span {
      display: block;
      width: 24px;
      height: 3px;
      background: var(--text-main);
      margin: 5px 0;
      border-radius: 2px;
      transition: all 0.3s;
    }

    /* 标题与版块规范 */
    .section-spacing {
      padding: 72px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-block;
      padding: 6px 16px;
      font-size: 0.85rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      background: rgba(79, 70, 229, 0.12);
      color: var(--primary);
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      border: 1px solid rgba(79, 70, 229, 0.2);
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 14px;
    }

    .section-title .text-gradient {
      background: var(--gradient-vibrant);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 首屏 HERO（严格禁止任何图片，使用高饱和艳彩几何渐变） */
    .hero-section {
      padding: 80px 0 60px 0;
      position: relative;
      background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
      border-bottom: 1px solid var(--border-light);
    }

    .hero-inner {
      text-align: center;
      max-width: 980px;
      margin: 0 auto;
    }

    .hero-badge-flow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: #ffffff;
      padding: 8px 20px;
      border-radius: var(--radius-full);
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.15);
      border: 1px solid rgba(99, 102, 241, 0.25);
      margin-bottom: 24px;
    }

    .pulse-dot {
      width: 10px;
      height: 10px;
      background: var(--accent-emerald);
      border-radius: 50%;
      box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
    }

    .hero-badge-text {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--primary);
    }

    .hero-title {
      font-size: 3rem;
      font-weight: 900;
      letter-spacing: -1px;
      line-height: 1.2;
      color: var(--text-main);
      margin-bottom: 20px;
    }

    .hero-title-highlight {
      background: var(--gradient-vibrant);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline;
    }

    .hero-lead {
      font-size: 1.25rem;
      font-weight: 600;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 36px;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-cta-wrapper {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 18px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .stat-card {
      background: #ffffff;
      padding: 24px 18px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-card);
      border-top: 4px solid var(--primary);
      transition: all 0.3s ease;
    }

    .stat-card:nth-child(2) { border-top-color: var(--secondary); }
    .stat-card:nth-child(3) { border-top-color: var(--accent-amber); }
    .stat-card:nth-child(4) { border-top-color: var(--accent-cyan); }

    .stat-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-vibrant);
    }

    .stat-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1;
      margin-bottom: 8px;
    }

    .stat-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 模型跑马徽章栏 */
    .model-pills-bar {
      margin-top: 36px;
      padding: 16px 20px;
      background: #ffffff;
      border-radius: var(--radius-full);
      box-shadow: 0 4px 20px rgba(0,0,0,0.04);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 10px;
      border: 1px solid var(--border-light);
    }

    .model-pill-title {
      font-size: 0.85rem;
      font-weight: 800;
      color: var(--text-main);
      padding-right: 6px;
    }

    .model-badge {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      background: #f1f5f9;
      color: var(--text-sub);
      transition: all 0.2s ease;
    }

    .model-badge:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.05);
    }

    /* 关于我们与平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-image-card {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-vibrant);
      border: 3px solid #ffffff;
    }

    .about-image-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      aspect-ratio: 1 / 1;
      transition: transform 0.5s ease;
    }

    .about-image-card:hover img {
      transform: scale(1.03);
    }

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

    .feature-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      padding: 14px;
      background: #ffffff;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      box-shadow: 0 2px 8px rgba(0,0,0,0.02);
    }

    .feature-icon-bullet {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: var(--gradient-vibrant);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8rem;
      font-weight: 900;
      flex-shrink: 0;
    }

    .feature-item h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 2px;
    }

    .feature-item p {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.4;
    }

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

    .service-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-card);
      position: relative;
      overflow: hidden;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .service-card::after {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--gradient-vibrant);
      opacity: 0;
      transition: opacity 0.3s;
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-vibrant);
      border-color: rgba(99, 102, 241, 0.4);
    }

    .service-card:hover::after {
      opacity: 1;
    }

    .service-icon-box {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 20px;
      color: #ffffff;
      background: var(--gradient-cool);
    }

    .service-card:nth-child(2n) .service-icon-box { background: var(--gradient-warm); }
    .service-card:nth-child(3n) .service-icon-box { background: var(--gradient-vibrant); }

    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-badge-tag {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      background: rgba(79, 70, 229, 0.08);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      align-self: flex-start;
    }

    /* 一站式制作流水线 */
    .workflow-split {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      align-items: center;
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-card);
    }

    .workflow-steps-box {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .workflow-step {
      display: flex;
      gap: 16px;
    }

    .step-idx {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: var(--gradient-vibrant);
      color: #ffffff;
      font-weight: 900;
      font-size: 1rem;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      box-shadow: 0 4px 10px rgba(236, 72, 153, 0.3);
    }

    .step-content h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .step-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .workflow-media {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 10px 30px rgba(0,0,0,0.1);
      border: 3px solid #ffffff;
    }

    /* 行业方案与网络 */
    .industry-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

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

    .industry-card:hover {
      border-color: var(--secondary);
      transform: translateY(-4px);
    }

    .industry-card h4 {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .industry-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 案例中心 */
    .case-banner-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
      margin-bottom: 30px;
    }

    .case-img-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 2px solid #ffffff;
      position: relative;
    }

    .case-img-box img {
      width: 100%;
      height: 280px;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .case-img-box:hover img {
      transform: scale(1.04);
    }

    .case-overlay-title {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      padding: 16px 20px;
      background: linear-gradient(0deg, rgba(15, 23, 42, 0.85) 0%, transparent 100%);
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
    }

    /* 对比评测板块 */
    .compare-container {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-vibrant);
      border: 2px solid rgba(79, 70, 229, 0.25);
    }

    .score-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
      color: #ffffff;
      padding: 28px 36px;
      border-radius: var(--radius-md);
      margin-bottom: 36px;
    }

    .score-left h3 {
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .score-stars {
      color: #fbbf24;
      font-size: 1.4rem;
      letter-spacing: 3px;
    }

    .score-right {
      display: flex;
      align-items: baseline;
      gap: 10px;
    }

    .score-digit {
      font-size: 3.6rem;
      font-weight: 900;
      line-height: 1;
      background: linear-gradient(135deg, #f59e0b 0%, #ec4899 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .score-total {
      font-size: 1.2rem;
      color: #cbd5e1;
      font-weight: 700;
    }

    .compare-table-wrapper {
      width: 100%;
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-light);
      font-size: 0.95rem;
    }

    .compare-table th {
      background: #f8fafc;
      color: var(--text-main);
      font-weight: 800;
    }

    .compare-table .highlight-col {
      background: rgba(99, 102, 241, 0.05);
      font-weight: 700;
      color: var(--primary);
    }

    .badge-win {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      padding: 4px 10px;
      border-radius: var(--radius-full);
      background: rgba(16, 185, 129, 0.15);
      color: var(--accent-emerald);
      font-size: 0.8rem;
      font-weight: 800;
    }

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

    .token-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 2px solid var(--border-light);
      box-shadow: var(--shadow-card);
      position: relative;
      transition: all 0.3s;
    }

    .token-card.popular {
      border-color: var(--secondary);
      box-shadow: var(--shadow-vibrant);
      transform: translateY(-4px);
    }

    .popular-flag {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--gradient-warm);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      text-transform: uppercase;
    }

    .token-card h4 {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .price-contrast {
      margin: 16px 0;
      padding: 14px;
      background: #f8fafc;
      border-radius: var(--radius-sm);
    }

    .official-price {
      font-size: 0.88rem;
      color: var(--text-muted);
      text-decoration: line-through;
      margin-bottom: 4px;
    }

    .our-price {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--secondary);
      display: flex;
      align-items: baseline;
      gap: 6px;
    }

    .our-price span {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: normal;
    }

    .token-feat-list {
      list-style: none;
      margin: 16px 0 24px 0;
      font-size: 0.9rem;
      color: var(--text-sub);
    }

    .token-feat-list li {
      padding: 6px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 加盟代理模块 */
    .partner-banner {
      background: linear-gradient(135deg, #312e81 0%, #4f46e5 50%, #ec4899 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      box-shadow: var(--shadow-vibrant);
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
    }

    .partner-left h3 {
      font-size: 2rem;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .partner-left p {
      font-size: 1.05rem;
      line-height: 1.6;
      color: #e2e8f0;
      margin-bottom: 24px;
    }

    .partner-perks {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .partner-perk-card {
      background: rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(8px);
      padding: 16px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .partner-perk-card h5 {
      font-size: 1.05rem;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .partner-perk-card p {
      font-size: 0.82rem;
      color: #f1f5f9;
      margin-bottom: 0;
    }

    .partner-right {
      text-align: center;
      background: #ffffff;
      color: var(--text-main);
      padding: 30px;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    }

    .partner-right h4 {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .partner-right p {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    /* 用户评论卡片 (6条) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.3s;
    }

    .review-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-vibrant);
      border-color: var(--primary-light);
    }

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

    .review-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--gradient-vibrant);
      color: #ffffff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }

    .review-info h5 {
      font-size: 0.95rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .review-info span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .review-body {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 14px;
    }

    .review-stars {
      color: #f59e0b;
      font-size: 0.9rem;
    }

    /* 需求匹配与表单 */
    .contact-form-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 2px solid var(--border-light);
      box-shadow: var(--shadow-card);
      max-width: 820px;
      margin: 0 auto;
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }

    .form-group-full {
      grid-column: 1 / -1;
    }

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      background: #f8fafc;
      color: var(--text-main);
      outline: none;
      transition: all 0.25s;
    }

    .form-control:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 120px;
    }

    /* FAQ 手风琴 */
    .faq-wrapper {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

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

    .faq-item.active {
      border-color: var(--primary);
      box-shadow: 0 4px 15px rgba(79, 70, 229, 0.1);
    }

    .faq-question {
      width: 100%;
      padding: 18px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      text-align: left;
    }

    .faq-icon-arrow {
      width: 12px;
      height: 12px;
      border-right: 2px solid var(--text-muted);
      border-bottom: 2px solid var(--text-muted);
      transform: rotate(45deg);
      transition: transform 0.3s;
      flex-shrink: 0;
    }

    .faq-item.active .faq-icon-arrow {
      transform: rotate(-135deg);
      border-color: var(--primary);
    }

    .faq-answer {
      display: none;
      padding: 0 24px 20px 24px;
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    /* 行业资讯与文章 */
    .article-section-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-card);
    }

    .article-links-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 20px;
    }

    .article-anchor {
      display: inline-block;
      padding: 8px 16px;
      background: #f1f5f9;
      color: var(--text-sub);
      font-size: 0.88rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      border: 1px solid var(--border-light);
    }

    .article-anchor:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    /* 页脚与联系我们 */
    .site-footer {
      background: #0f172a;
      color: #f8fafc;
      padding: 60px 0 30px 0;
      position: relative;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1.1rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 32px;
      height: 3px;
      background: var(--secondary);
    }

    .footer-desc {
      font-size: 0.9rem;
      color: #94a3b8;
      line-height: 1.6;
      margin-top: 14px;
    }

    .footer-links-list {
      list-style: none;
    }

    .footer-links-list li {
      margin-bottom: 10px;
    }

    .footer-links-list a {
      font-size: 0.9rem;
      color: #94a3b8;
    }

    .footer-links-list a:hover {
      color: #ffffff;
      padding-left: 4px;
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      color: #cbd5e1;
      margin-bottom: 12px;
    }

    .qr-container {
      display: inline-block;
      padding: 8px;
      background: #ffffff;
      border-radius: var(--radius-sm);
      margin-top: 8px;
    }

    .qr-container img {
      width: 100px;
      height: 100px;
      object-fit: cover;
    }

    .friend-links-bar {
      padding-top: 24px;
      margin-top: 24px;
      border-top: 1px solid #334155;
      font-size: 0.85rem;
      color: #94a3b8;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
    }

    .friend-links-bar a {
      color: #cbd5e1;
    }

    .friend-links-bar a:hover {
      color: var(--secondary);
    }

    .footer-bottom {
      padding-top: 24px;
      border-top: 1px solid #1e293b;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 浮动组件 */
    .float-dock {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .dock-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: 0 4px 15px rgba(0,0,0,0.15);
      border: 1px solid var(--border-light);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--text-main);
      font-weight: 800;
      transition: all 0.25s;
    }

    .dock-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.1);
    }

    #backToTop {
      display: none;
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .services-grid,
      .token-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .industry-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .workflow-split,
      .partner-banner {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 16px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 2px solid var(--primary);
        gap: 0; /* 严格保证为 0 */
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        padding: 12px 16px;
      }
      .menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid,
      .case-banner-row,
      .services-grid,
      .token-grid,
      .reviews-grid,
      .industry-grid,
      .form-grid,
      .feature-list,
      .partner-perks {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .section-spacing {
        padding: 48px 0;
      }
      .compare-container,
      .workflow-split,
      .partner-banner,
      .contact-form-card {
        padding: 24px;
      }
    }