:root {
      --rainbow-red: #ff4d4f;
      --rainbow-orange: #fa8c16;
      --rainbow-yellow: #fadb14;
      --rainbow-green: #52c41a;
      --rainbow-cyan: #13c2c2;
      --rainbow-blue: #1890ff;
      --rainbow-purple: #722ed1;
      --rainbow-pink: #eb2f96;
      --rainbow-grad: linear-gradient(135deg, #ff4d4f 0%, #fa8c16 16%, #fadb14 32%, #52c41a 48%, #13c2c2 65%, #1890ff 82%, #722ed1 100%);
      --rainbow-grad-soft: linear-gradient(135deg, rgba(255, 77, 79, 0.08) 0%, rgba(250, 140, 22, 0.08) 20%, rgba(82, 196, 26, 0.08) 45%, rgba(19, 194, 194, 0.08) 70%, rgba(114, 46, 209, 0.08) 100%);
      --bg-main: #fcfdfe;
      --bg-card: #ffffff;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --text-light: #94a3b8;
      --border-color: #e2e8f0;
      --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(30, 41, 59, 0.08);
      --shadow-rainbow: 0 10px 30px -5px rgba(24, 144, 255, 0.18);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
    }

    * {
      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, "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;
      background-image: 
        radial-gradient(at 0% 0%, rgba(255, 77, 79, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 10%, rgba(24, 144, 255, 0.06) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(82, 196, 26, 0.04) 0px, transparent 50%),
        radial-gradient(at 10% 90%, rgba(250, 140, 22, 0.05) 0px, transparent 50%),
        radial-gradient(at 90% 100%, rgba(114, 46, 209, 0.06) 0px, transparent 50%);
      background-attachment: fixed;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

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

    ul, ol {
      list-style: none;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      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;
    }

    .brand-logo-box {
      max-width: 140px;
      display: flex;
      align-items: center;
    }

    .brand-title {
      font-size: 1.15rem;
      font-weight: 700;
      background: var(--rainbow-grad);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }

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

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links li a {
      display: block;
      padding: 8px 12px;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      position: relative;
    }

    .nav-links li a:hover {
      color: var(--rainbow-blue);
      background-color: rgba(24, 144, 255, 0.06);
    }

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

    .btn-rainbow-solid {
      background: var(--rainbow-grad);
      color: #ffffff !important;
      padding: 8px 20px;
      border-radius: var(--radius-full);
      font-weight: 600;
      font-size: 0.9rem;
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(24, 144, 255, 0.3);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .btn-rainbow-solid:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(114, 46, 209, 0.35);
    }

    .mobile-menu-toggle {
      display: none;
      background: transparent;
      border: 1px solid var(--border-color);
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 1.2rem;
    }

    /* 统一段落与标题 */
    .section-spacing {
      padding: 80px 0;
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px;
    }

    .rainbow-badge {
      display: inline-block;
      padding: 4px 14px;
      border-radius: var(--radius-full);
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      background: var(--rainbow-grad-soft);
      border: 1px solid rgba(24, 144, 255, 0.2);
      color: #1e293b;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
    }

    /* 首屏 HERO (无任何图片) */
    .hero-section {
      padding: 70px 0 60px;
      position: relative;
      overflow: hidden;
    }

    .hero-wrapper {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero-tag-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 20px;
    }

    .hero-tag {
      font-size: 0.8rem;
      font-weight: 600;
      padding: 3px 10px;
      border-radius: var(--radius-sm);
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .tag-c1 { border-left: 3px solid var(--rainbow-red); }
    .tag-c2 { border-left: 3px solid var(--rainbow-orange); }
    .tag-c3 { border-left: 3px solid var(--rainbow-green); }
    .tag-c4 { border-left: 3px solid var(--rainbow-blue); }

    .hero-title {
      font-size: 2.6rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
    }

    .hero-desc {
      font-size: 1.12rem;
      color: var(--text-muted);
      margin-bottom: 30px;
      max-width: 600px;
    }

    .hero-btns {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      margin-bottom: 36px;
    }

    .btn-hero-primary {
      background: var(--rainbow-grad);
      color: #ffffff;
      padding: 14px 34px;
      border-radius: var(--radius-full);
      font-weight: 700;
      font-size: 1.05rem;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 10px 25px rgba(24, 144, 255, 0.35);
    }

    .btn-hero-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 14px 30px rgba(114, 46, 209, 0.4);
    }

    .btn-hero-secondary {
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      padding: 13px 26px;
      border-radius: var(--radius-full);
      font-weight: 600;
      font-size: 1rem;
      box-shadow: var(--shadow-sm);
    }

    .btn-hero-secondary:hover {
      border-color: var(--rainbow-blue);
      color: var(--rainbow-blue);
    }

    .hero-features-list {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      font-size: 0.92rem;
      color: var(--text-muted);
    }

    .hero-features-list span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .check-dot {
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: rgba(82, 196, 26, 0.15);
      color: var(--rainbow-green);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 700;
    }

    /* 首屏纯CSS科技感控制面板 (无图设计) */
    .hero-visual-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-rainbow);
      border: 1px solid rgba(226, 232, 240, 0.9);
      position: relative;
    }

    .hero-visual-card::before {
      content: "";
      position: absolute;
      top: -2px;
      left: -2px;
      right: -2px;
      bottom: -2px;
      background: var(--rainbow-grad);
      border-radius: calc(var(--radius-lg) + 2px);
      z-index: -1;
      opacity: 0.4;
    }

    .dashboard-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 14px;
      margin-bottom: 20px;
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--rainbow-green);
      background: rgba(82, 196, 26, 0.1);
      padding: 4px 10px;
      border-radius: var(--radius-full);
    }

    .pulse-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--rainbow-green);
      box-shadow: 0 0 0 0 rgba(82, 196, 26, 0.7);
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(82, 196, 26, 0.7); }
      70% { box-shadow: 0 0 0 8px rgba(82, 196, 26, 0); }
      100% { box-shadow: 0 0 0 0 rgba(82, 196, 26, 0); }
    }

    .dashboard-metrics {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 20px;
    }

    .metric-box {
      background: #f8fafc;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid #edf2f7;
    }

    .metric-name {
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 6px;
    }

    .metric-value {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .metric-rainbow-1 { color: var(--rainbow-blue); }
    .metric-rainbow-2 { color: var(--rainbow-purple); }

    .engine-stack {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      padding-top: 6px;
    }

    .engine-chip {
      font-size: 0.75rem;
      padding: 5px 10px;
      background: #ffffff;
      border-radius: 6px;
      border: 1px solid var(--border-color);
      font-weight: 600;
      color: var(--text-main);
      box-shadow: 0 1px 3px rgba(0,0,0,0.03);
    }

    /* 品牌指标栏 */
    .metrics-bar {
      margin-top: 20px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      box-shadow: var(--shadow-sm);
    }

    .metric-item {
      text-align: center;
      position: relative;
    }

    .metric-item:not(:last-child)::after {
      content: "";
      position: absolute;
      right: 0;
      top: 20%;
      height: 60%;
      width: 1px;
      background: var(--border-color);
    }

    .metric-num {
      font-size: 2.3rem;
      font-weight: 900;
      line-height: 1;
      margin-bottom: 8px;
      background: var(--rainbow-grad);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .metric-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 平台核心模型跑道 */
    .models-marquee-section {
      padding: 40px 0;
      border-top: 1px dashed var(--border-color);
      border-bottom: 1px dashed var(--border-color);
      background: rgba(255, 255, 255, 0.6);
    }

    .marquee-title {
      text-align: center;
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      font-weight: 600;
      letter-spacing: 0.5px;
    }

    .model-tags-cluster {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-tag-pill {
      font-size: 0.85rem;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: var(--radius-full);
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--text-main);
      box-shadow: 0 2px 5px rgba(0,0,0,0.03);
      transition: all 0.2s ease;
    }

    .model-tag-pill:hover {
      border-color: var(--rainbow-blue);
      transform: translateY(-2px);
      box-shadow: 0 4px 10px rgba(24, 144, 255, 0.15);
    }

    /* 平台介绍 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .intro-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .intro-card h3 {
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .intro-card p {
      color: var(--text-muted);
      margin-bottom: 16px;
      font-size: 0.98rem;
    }

    .intro-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-top: 24px;
    }

    .intro-item-pill {
      background: #f8fafc;
      padding: 12px 16px;
      border-radius: var(--radius-md);
      border-left: 3px solid var(--rainbow-blue);
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
    }

    /* 宣传物料图容器 (不在首屏) */
    .media-card-wrap {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      background: #ffffff;
      position: relative;
    }

    .media-card-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.3s ease;
    }

    .media-card-wrap:hover img {
      transform: scale(1.02);
    }

    .media-card-caption {
      padding: 16px 20px;
      background: #ffffff;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      border-top: 1px solid var(--border-color);
    }

    /* 服务与全场景一站式创作 (卡片群) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(24, 144, 255, 0.3);
    }

    .service-icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 20px;
      background: var(--rainbow-grad-soft);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }

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

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

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

    .service-subtag {
      font-size: 0.75rem;
      padding: 3px 8px;
      background: #f1f5f9;
      border-radius: 4px;
      color: #475569;
    }

    /* 标准制作流程 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 26px 20px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-badge {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--rainbow-grad);
      color: #ffffff;
      font-weight: 800;
      font-size: 1.1rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      box-shadow: 0 4px 10px rgba(24, 144, 255, 0.3);
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.86rem;
      color: var(--text-muted);
    }

    /* 案例中心展示 */
    .case-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }

    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .case-img-holder {
      width: 100%;
      max-height: 280px;
      overflow: hidden;
      background: #e2e8f0;
    }

    .case-img-holder img {
      width: 100%;
      height: auto;
      object-fit: cover;
      display: block;
      transition: transform 0.3s ease;
    }

    .case-card:hover .case-img-holder img {
      transform: scale(1.03);
    }

    .case-body {
      padding: 24px;
    }

    .case-category {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--rainbow-blue);
      text-transform: uppercase;
      margin-bottom: 8px;
    }

    .case-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .case-summary {
      font-size: 0.92rem;
      color: var(--text-muted);
    }

    /* 对比评测板块 */
    .eval-highlight-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 32px;
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      box-shadow: var(--shadow-rainbow);
    }

    .eval-score-wrap {
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .eval-stars {
      color: #faad14;
      font-size: 1.8rem;
      line-height: 1;
    }

    .eval-number {
      font-size: 3rem;
      font-weight: 900;
      line-height: 1;
      background: var(--rainbow-grad);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .eval-scale {
      font-size: 1.1rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    .eval-statement {
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      max-width: 500px;
    }

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

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 720px;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f1f5f9;
      font-size: 0.92rem;
    }

    .compare-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }

    .col-highlight {
      background: rgba(24, 144, 255, 0.03);
      font-weight: 600;
      color: var(--text-main);
    }

    .compare-badge-win {
      background: rgba(82, 196, 26, 0.12);
      color: var(--rainbow-green);
      font-weight: 700;
      padding: 3px 10px;
      border-radius: var(--radius-full);
      font-size: 0.8rem;
      display: inline-block;
    }

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

    .token-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px 24px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

    .token-card.featured {
      border-color: var(--rainbow-blue);
      box-shadow: var(--shadow-rainbow);
      transform: scale(1.02);
    }

    .token-card-tier {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .token-unit {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .token-list {
      text-align: left;
      margin-bottom: 24px;
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    .token-list li {
      padding: 8px 0;
      border-bottom: 1px dashed #f1f5f9;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 需求匹配与提交表单 */
    .form-section-wrap {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      padding: 40px;
    }

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

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

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

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

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      font-size: 0.95rem;
      font-family: inherit;
      color: var(--text-main);
      background-color: #f8fafc;
      transition: all 0.2s ease;
    }

    .form-control:focus {
      outline: none;
      background-color: #ffffff;
      border-color: var(--rainbow-blue);
      box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.15);
    }

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

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

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-quote {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
      position: relative;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }

    .author-avatar-badge {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--rainbow-grad);
      color: #ffffff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.95rem;
    }

    .author-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .author-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* FAQ 手风琴面板 */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color 0.2s ease;
    }

    .faq-question {
      padding: 18px 22px;
      font-weight: 700;
      font-size: 1.02rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #ffffff;
      user-select: none;
    }

    .faq-toggle-icon {
      font-size: 1.2rem;
      color: var(--rainbow-blue);
      transition: transform 0.25s ease;
    }

    .faq-answer {
      padding: 0 22px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      color: var(--text-muted);
      font-size: 0.94rem;
      line-height: 1.65;
      background: #f8fafc;
      border-top: 1px solid transparent;
    }

    .faq-item.active {
      border-color: rgba(24, 144, 255, 0.4);
    }

    .faq-item.active .faq-answer {
      padding: 16px 22px 20px;
      max-height: 300px;
      border-top-color: #f1f5f9;
    }

    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }

    /* 行业资讯与最新文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 24px;
    }

    .article-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-sm);
    }

    .article-meta {
      font-size: 0.78rem;
      color: var(--text-light);
      margin-bottom: 8px;
    }

    .article-link {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
      display: block;
      margin-bottom: 8px;
      line-height: 1.4;
    }

    .article-link:hover {
      color: var(--rainbow-blue);
    }

    .article-shortcode-box {
      background: #f8fafc;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px dashed var(--border-color);
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 加盟代理与被动收益专区 */
    .partner-banner {
      background: var(--rainbow-grad-soft);
      border: 1px solid rgba(24, 144, 255, 0.25);
      border-radius: var(--radius-lg);
      padding: 40px;
      text-align: center;
    }

    .partner-title {
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .partner-desc {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto 28px;
    }

    /* 底部通用主信息区 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      color: var(--text-main);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 18px;
      color: var(--text-main);
      position: relative;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 24px;
      height: 2px;
      background: var(--rainbow-grad);
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul li a {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .footer-col ul li a:hover {
      color: var(--rainbow-blue);
    }

    .footer-contact-item {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 10px;
    }

    .qrcode-box {
      display: inline-block;
      text-align: center;
      margin-top: 10px;
    }

    .qrcode-box img {
      width: 110px;
      height: 110px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      display: block;
      margin-bottom: 6px;
    }

    .qrcode-label {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    .friend-links-area {
      border-top: 1px solid #f1f5f9;
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friend-links-title {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links-list a {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .friend-links-list a:hover {
      color: var(--rainbow-blue);
    }

    .footer-bottom {
      border-top: 1px solid #f1f5f9;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.84rem;
      color: var(--text-muted);
    }

    /* 浮动操作栏与返回顶部 */
    .float-widgets {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--text-main);
      font-size: 1.1rem;
      transition: all 0.2s ease;
    }

    .float-btn:hover {
      transform: scale(1.08);
      border-color: var(--rainbow-blue);
      color: var(--rainbow-blue);
    }

    .float-btn-primary {
      background: var(--rainbow-grad);
      color: #ffffff;
      border: none;
    }

    /* 响应式媒体查询 */
    @media (max-width: 992px) {
      .hero-wrapper {
        grid-template-columns: 1fr;
      }
      .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }
      .services-grid, .token-grid, .reviews-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .intro-grid {
        grid-template-columns: 1fr;
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        padding: 20px;
      }
      .nav-menu.is-open {
        display: block;
      }
      .nav-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        padding: 10px 0;
        border-bottom: 1px solid #f1f5f9;
        width: 100%;
      }
      .hero-title {
        font-size: 2rem;
      }
      .services-grid, .token-grid, .reviews-grid, .articles-grid, .case-grid {
        grid-template-columns: 1fr;
      }
      .metrics-bar {
        grid-template-columns: 1fr;
      }
      .metric-item:not(:last-child)::after {
        display: none;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .eval-highlight-box {
        flex-direction: column;
        text-align: center;
      }
      .eval-score-wrap {
        flex-direction: column;
        gap: 10px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .flow-steps {
        grid-template-columns: 1fr;
      }
    }