* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    :root {
      --purple-1: #7c3aed;
      --purple-2: #a855f7;
      --purple-3: #c084fc;
      --purple-soft: #f3e8ff;
      --purple-bg: #faf5ff;
      --ink: #1e1b2e;
      --ink-2: #3b3557;
      --ink-3: #6b6685;
      --line: #e9e4f5;
      --white: #ffffff;
      --radius-lg: 20px;
      --radius-md: 14px;
      --radius-sm: 10px;
      --shadow-sm: 0 2px 8px rgba(124, 58, 237, 0.06);
      --shadow-md: 0 8px 30px rgba(124, 58, 237, 0.1);
      --shadow-lg: 0 16px 48px rgba(124, 58, 237, 0.14);
      --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --container: 1200px;
      --nav-h: 68px;
    }
    html {
      scroll-behavior: smooth;
      scroll-padding-top: calc(var(--nav-h) + 20px);
    }
    body {
      font-family: var(--font);
      background: var(--purple-bg);
      color: var(--ink);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    .container {
      width: 100%;
      max-width: var(--container);
      margin: 0 auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* ===== 顶部导航 ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--line);
      transition: box-shadow .3s ease;
    }
    .site-header.scrolled {
      box-shadow: 0 4px 20px rgba(124, 58, 237, 0.08);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: var(--nav-h);
      gap: 16px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .brand .ai-page-logo {
      max-width: 130px;
      height: auto;
      max-height: 40px;
      object-fit: contain;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
      flex-wrap: nowrap;
      overflow-x: auto;
      scrollbar-width: none;
    }
    .nav-links::-webkit-scrollbar {
      display: none;
    }
    .nav-links li a {
      display: inline-block;
      padding: 8px 11px;
      font-size: 14px;
      color: var(--ink-2);
      border-radius: 8px;
      white-space: nowrap;
      transition: color .2s, background .2s;
    }
    .nav-links li a:hover {
      color: var(--purple-1);
      background: var(--purple-soft);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 11px 22px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      border: none;
      cursor: pointer;
      transition: transform .2s ease, box-shadow .25s ease, background .25s ease;
      white-space: nowrap;
      font-family: var(--font);
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--purple-1), var(--purple-2));
      color: #fff;
      box-shadow: 0 6px 18px rgba(124, 58, 237, 0.34);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 26px rgba(124, 58, 237, 0.42);
    }
    .btn-ghost {
      background: #fff;
      color: var(--purple-1);
      border: 1.5px solid var(--purple-3);
    }
    .btn-ghost:hover {
      background: var(--purple-soft);
      transform: translateY(-2px);
    }
    .mobile-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      border: 1px solid var(--line);
      background: #fff;
      cursor: pointer;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      flex-shrink: 0;
    }
    .mobile-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      background: var(--ink-2);
      border-radius: 2px;
      transition: transform .3s, opacity .3s;
    }
    .mobile-toggle.active span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .mobile-toggle.active span:nth-child(2) {
      opacity: 0;
    }
    .mobile-toggle.active span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }
    @media (max-width: 1024px) {
      .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-h);
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 12px 20px 20px;
        border-bottom: 1px solid var(--line);
        box-shadow: 0 20px 30px rgba(124, 58, 237, 0.08);
        gap: 4px;
        max-height: calc(100vh - var(--nav-h));
        overflow-y: auto;
      }
      .nav-links.open {
        display: flex;
        animation: slideDown .28s ease;
      }
      @keyframes slideDown {
        from { opacity: 0; transform: translateY(-8px); }
        to { opacity: 1; transform: translateY(0); }
      }
      .nav-links li a {
        display: block;
        padding: 12px 14px;
        font-size: 15px;
      }
      .mobile-toggle {
        display: flex;
      }
      .nav-actions .btn-ghost {
        display: none;
      }
    }
    @media (max-width: 480px) {
      .nav-actions .btn-primary {
        padding: 9px 14px;
        font-size: 13px;
      }
      .brand .ai-page-logo {
        max-width: 110px;
      }
    }

    /* ===== 首屏 Hero (无图片) ===== */
    .hero {
      position: relative;
      overflow: hidden;
      background:
        radial-gradient(ellipse 60% 60% at 80% 10%, rgba(168, 85, 247, 0.18), transparent 60%),
        radial-gradient(ellipse 50% 50% at 10% 80%, rgba(192, 132, 252, 0.2), transparent 60%),
        linear-gradient(160deg, #ffffff 0%, #faf5ff 45%, #f0e6ff 100%);
      padding: 90px 0 70px;
    }
    .hero::before {
      content: "";
      position: absolute;
      top: -120px;
      right: -120px;
      width: 380px;
      height: 380px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(168, 85, 247, 0.16), transparent 70%);
      animation: float 8s ease-in-out infinite;
      pointer-events: none;
    }
    .hero::after {
      content: "";
      position: absolute;
      bottom: -100px;
      left: -80px;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(124, 58, 237, 0.12), transparent 70%);
      animation: float 10s ease-in-out infinite reverse;
      pointer-events: none;
    }
    @keyframes float {
      0%, 100% { transform: translate(0, 0) scale(1); }
      50% { transform: translate(18px, -18px) scale(1.06); }
    }
    .hero-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 16px;
      border-radius: 999px;
      background: rgba(124, 58, 237, 0.08);
      border: 1px solid rgba(124, 58, 237, 0.18);
      color: var(--purple-1);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: .4px;
      animation: fadeUp .7s ease both;
    }
    .hero-badge .dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--purple-1);
      box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.18);
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; }
      50% { opacity: .45; }
    }
    .hero h1 {
      margin-top: 22px;
      font-size: clamp(30px, 4.4vw, 50px);
      line-height: 1.18;
      font-weight: 800;
      color: var(--ink);
      letter-spacing: -0.5px;
      animation: fadeUp .7s .08s ease both;
    }
    .hero h1 .highlight {
      color: var(--purple-1);
      position: relative;
      display: inline-block;
    }
    .hero h1 .highlight::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 4px;
      width: 100%;
      height: 10px;
      border-radius: 6px;
      background: rgba(168, 85, 247, 0.22);
      z-index: -1;
    }
    .hero-desc {
      margin-top: 22px;
      font-size: 17px;
      color: var(--ink-3);
      max-width: 540px;
      animation: fadeUp .7s .16s ease both;
    }
    .hero-cta {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 32px;
      animation: fadeUp .7s .24s ease both;
    }
    .hero-cta .btn {
      padding: 14px 30px;
      font-size: 15px;
    }
    .hero-trust {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 22px;
      margin-top: 28px;
      color: var(--ink-3);
      font-size: 13px;
      animation: fadeUp .7s .32s ease both;
    }
    .hero-trust .trust-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .hero-trust .check {
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: rgba(124, 58, 237, 0.12);
      color: var(--purple-1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 700;
    }
    .hero-visual {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      animation: fadeUp .8s .2s ease both;
    }
    .hero-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 22px 20px;
      box-shadow: var(--shadow-md);
      transition: transform .3s ease, box-shadow .3s ease;
    }
    .hero-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
    }
    .hero-card .hc-icon {
      width: 42px;
      height: 42px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--purple-soft), #fff);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 12px;
    }
    .hero-card h3 {
      font-size: 15px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 6px;
    }
    .hero-card p {
      font-size: 13px;
      color: var(--ink-3);
      line-height: 1.5;
    }
    .hero-card:nth-child(2) {
      margin-top: 28px;
    }
    .hero-card:nth-child(3) {
      margin-top: -12px;
    }
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(22px); }
      to { opacity: 1; transform: translateY(0); }
    }
    @media (max-width: 900px) {
      .hero {
        padding: 60px 0 50px;
      }
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .hero-visual {
        max-width: 520px;
        margin: 0 auto;
        width: 100%;
      }
    }
    @media (max-width: 480px) {
      .hero-visual {
        grid-template-columns: 1fr;
        gap: 12px;
      }
      .hero-card:nth-child(2),
      .hero-card:nth-child(3) {
        margin-top: 0;
      }
      .hero-cta .btn {
        flex: 1 1 100%;
      }
    }

    /* ===== 通用区块 ===== */
    section {
      padding: 72px 0;
      position: relative;
    }
    .section-alt {
      background: linear-gradient(180deg, #ffffff 0%, #faf5ff 100%);
    }
    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 44px;
    }
    .eyebrow {
      display: inline-block;
      padding: 5px 14px;
      border-radius: 999px;
      background: rgba(124, 58, 237, 0.08);
      color: var(--purple-1);
      font-size: 12.5px;
      font-weight: 700;
      letter-spacing: 1px;
      margin-bottom: 14px;
    }
    .section-head h2 {
      font-size: clamp(24px, 3vw, 34px);
      font-weight: 800;
      color: var(--ink);
      line-height: 1.3;
      letter-spacing: -0.3px;
    }
    .section-head p {
      margin-top: 14px;
      font-size: 15.5px;
      color: var(--ink-3);
    }
    .reveal {
      opacity: 0;
      transform: translateY(26px);
      transition: opacity .7s cubic-bezier(.2,.6,.3,1), transform .7s cubic-bezier(.2,.6,.3,1);
      will-change: opacity, transform;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    @media (prefers-reduced-motion: reduce) {
      .reveal {
        opacity: 1;
        transform: none;
        transition: none;
      }
      .hero::before, .hero::after, .hero-badge .dot {
        animation: none;
      }
    }

    /* ===== 数据指标 ===== */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }
    .stat-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: transform .3s, box-shadow .3s, border-color .3s;
    }
    .stat-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--purple-3);
    }
    .stat-num {
      font-size: 30px;
      font-weight: 800;
      color: var(--purple-1);
      line-height: 1.2;
      letter-spacing: -0.5px;
    }
    .stat-label {
      margin-top: 8px;
      font-size: 13.5px;
      color: var(--ink-3);
    }
    @media (max-width: 700px) {
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    /* ===== 服务矩阵卡片 ===== */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .service-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 26px 24px;
      box-shadow: var(--shadow-sm);
      transition: transform .3s ease, box-shadow .3s ease, border-color .3s;
      position: relative;
      overflow: hidden;
    }
    .service-card::after {
      content: "";
      position: absolute;
      left: 0;
      top: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, var(--purple-1), var(--purple-3));
      transform: scaleX(0);
      transform-origin: left;
      transition: transform .35s ease;
    }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: var(--purple-3);
    }
    .service-card:hover::after {
      transform: scaleX(1);
    }
    .sc-icon {
      width: 46px;
      height: 46px;
      border-radius: 13px;
      background: linear-gradient(135deg, rgba(124, 58, 237, 0.12), rgba(168, 85, 247, 0.08));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 16px;
    }
    .service-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 8px;
    }
    .service-card p {
      font-size: 13.5px;
      color: var(--ink-3);
      line-height: 1.65;
    }
    @media (max-width: 900px) {
      .service-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 560px) {
      .service-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== 平台介绍 ===== */
    .platform-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .platform-text h2 {
      font-size: clamp(24px, 3vw, 32px);
      font-weight: 800;
      color: var(--ink);
      margin-bottom: 18px;
      line-height: 1.3;
    }
    .platform-text p {
      font-size: 15px;
      color: var(--ink-3);
      margin-bottom: 14px;
    }
    .feature-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px 20px;
      margin-top: 22px;
    }
    .feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: var(--ink-2);
    }
    .feature-list li .fi {
      flex-shrink: 0;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--purple-soft);
      color: var(--purple-1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 700;
      margin-top: 2px;
    }
    .platform-visual {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .pv-card {
      border-radius: var(--radius-md);
      overflow: hidden;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
      transition: transform .3s, box-shadow .3s;
    }
    .pv-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }
    .pv-card img {
      width: 100%;
      height: auto;
      object-fit: cover;
    }
    .pv-card .pv-cap {
      padding: 12px 14px;
      font-size: 13px;
      font-weight: 600;
      color: var(--ink-2);
    }
    .pv-card.tall {
      grid-row: span 2;
    }
    @media (max-width: 900px) {
      .platform-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .feature-list {
        grid-template-columns: 1fr;
      }
    }

    /* ===== 流程时间线 ===== */
    .timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .timeline::before {
      content: "";
      position: absolute;
      top: 28px;
      left: 8%;
      right: 8%;
      height: 2px;
      background: linear-gradient(90deg, var(--purple-3), var(--purple-1), var(--purple-3));
      opacity: .35;
      z-index: 0;
    }
    .tl-step {
      position: relative;
      z-index: 1;
      text-align: center;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 28px 18px 22px;
      box-shadow: var(--shadow-sm);
      transition: transform .3s, box-shadow .3s;
    }
    .tl-step:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }
    .tl-num {
      width: 48px;
      height: 48px;
      margin: 0 auto 16px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--purple-1), var(--purple-2));
      color: #fff;
      font-weight: 800;
      font-size: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 6px 16px rgba(124, 58, 237, 0.32);
    }
    .tl-step h3 {
      font-size: 15px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 8px;
    }
    .tl-step p {
      font-size: 13px;
      color: var(--ink-3);
      line-height: 1.6;
    }
    @media (max-width: 800px) {
      .timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline::before {
        display: none;
      }
    }
    @media (max-width: 480px) {
      .timeline {
        grid-template-columns: 1fr;
      }
    }

    /* ===== 对比评测 ===== */
    .compare-wrap {
      overflow-x: auto;
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      box-shadow: var(--shadow-md);
      background: #fff;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 720px;
      font-size: 14px;
    }
    .compare-table thead {
      background: linear-gradient(135deg, var(--purple-1), var(--purple-2));
    }
    .compare-table thead th {
      color: #fff;
      font-weight: 700;
      padding: 18px 20px;
      text-align: left;
      font-size: 14.5px;
    }
    .compare-table thead th:not(:first-child) {
      text-align: center;
    }
    .compare-table tbody td {
      padding: 15px 20px;
      border-bottom: 1px solid var(--line);
      color: var(--ink-2);
    }
    .compare-table tbody tr:last-child td {
      border-bottom: none;
    }
    .compare-table tbody tr:nth-child(even) {
      background: #fdfbff;
    }
    .compare-table tbody tr:hover {
      background: var(--purple-soft);
    }
    .compare-table td.center {
      text-align: center;
    }
    .score-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 14px;
      border-radius: 999px;
      background: rgba(124, 58, 237, 0.1);
      color: var(--purple-1);
      font-weight: 800;
      font-size: 16px;
    }
    .stars {
      color: #f59e0b;
      font-size: 16px;
      letter-spacing: 2px;
    }
    .rating-box {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 18px;
      margin-top: 26px;
      padding: 24px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: center;
    }
    .rating-box .rb-score {
      font-size: 36px;
      font-weight: 800;
      color: var(--purple-1);
      line-height: 1;
    }
    .rating-box .rb-label {
      font-size: 13.5px;
      color: var(--ink-3);
    }

    /* ===== 案例中心 ===== */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 22px;
    }
    .case-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform .3s, box-shadow .3s;
    }
    .case-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
    }
    .case-media {
      width: 100%;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: var(--purple-soft);
    }
    .case-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }
    .case-card:hover .case-media img {
      transform: scale(1.04);
    }
    .case-body {
      padding: 20px 22px 24px;
    }
    .case-body h3 {
      font-size: 16.5px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 8px;
    }
    .case-body p {
      font-size: 13.5px;
      color: var(--ink-3);
      line-height: 1.65;
    }
    .case-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 14px;
    }
    .case-tags span {
      padding: 4px 12px;
      border-radius: 999px;
      background: var(--purple-soft);
      color: var(--purple-1);
      font-size: 12px;
      font-weight: 600;
    }
    @media (max-width: 640px) {
      .case-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== 用户评论 ===== */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 24px 22px;
      box-shadow: var(--shadow-sm);
      transition: transform .3s, box-shadow .3s;
      display: flex;
      flex-direction: column;
    }
    .review-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }
    .review-quote {
      font-size: 13.5px;
      color: var(--ink-2);
      line-height: 1.7;
      flex: 1;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 18px;
      padding-top: 16px;
      border-top: 1px solid var(--line);
    }
    .review-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--purple-soft), #e9d5ff);
      color: var(--purple-1);
      font-weight: 800;
      font-size: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .review-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--ink);
    }
    .review-role {
      font-size: 12px;
      color: var(--ink-3);
    }
    .review-stars {
      color: #f59e0b;
      font-size: 13px;
      letter-spacing: 2px;
      margin-bottom: 8px;
    }
    @media (max-width: 900px) {
      .review-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 560px) {
      .review-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== FAQ ===== */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: box-shadow .3s, border-color .3s;
    }
    .faq-item:hover {
      border-color: var(--purple-3);
    }
    .faq-item.open {
      box-shadow: var(--shadow-sm);
      border-color: var(--purple-3);
    }
    .faq-q {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 22px;
      background: transparent;
      border: none;
      cursor: pointer;
      font-size: 15px;
      font-weight: 600;
      color: var(--ink);
      text-align: left;
      font-family: var(--font);
      transition: background .2s;
    }
    .faq-q:hover {
      background: #fdfbff;
    }
    .faq-q .faq-icon {
      flex-shrink: 0;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: var(--purple-soft);
      color: var(--purple-1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 700;
      transition: transform .3s ease;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
    }
    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height .4s ease;
    }
    .faq-a p {
      padding: 0 22px 20px;
      font-size: 14px;
      color: var(--ink-3);
      line-height: 1.7;
    }

    /* ===== 文章 & 标签 & 资讯 ===== */
    .article-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }
    .article-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 22px 20px;
      box-shadow: var(--shadow-sm);
      transition: transform .3s, box-shadow .3s;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .article-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .article-date {
      font-size: 12px;
      color: var(--purple-1);
      font-weight: 600;
    }
    .article-card h3 {
      font-size: 15px;
      font-weight: 700;
      color: var(--ink);
      line-height: 1.5;
    }
    .article-card p {
      font-size: 13px;
      color: var(--ink-3);
      line-height: 1.6;
      flex: 1;
    }
    .article-card a {
      font-size: 13px;
      font-weight: 600;
      color: var(--purple-1);
      display: inline-flex;
      align-items: center;
      gap: 4px;
      transition: gap .2s;
    }
    .article-card a:hover {
      gap: 8px;
    }
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 28px;
      justify-content: center;
    }
    .tag-cloud a {
      padding: 7px 16px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid var(--line);
      font-size: 13px;
      color: var(--ink-2);
      transition: background .2s, color .2s, border-color .2s, transform .2s;
    }
    .tag-cloud a:hover {
      background: var(--purple-soft);
      color: var(--purple-1);
      border-color: var(--purple-3);
      transform: translateY(-2px);
    }
    @media (max-width: 900px) {
      .article-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 560px) {
      .article-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== 服务网络 & 价格参考 ===== */
    .network-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 28px;
    }
    .price-card {
      background: linear-gradient(160deg, #ffffff, #faf5ff);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 30px 26px;
      box-shadow: var(--shadow-md);
    }
    .price-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 6px;
    }
    .price-card .price-sub {
      font-size: 13px;
      color: var(--ink-3);
      margin-bottom: 20px;
    }
    .price-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 13px 0;
      border-bottom: 1px dashed var(--line);
      font-size: 14px;
    }
    .price-row:last-child {
      border-bottom: none;
    }
    .price-row .pr-name {
      color: var(--ink-2);
    }
    .price-row .pr-val {
      font-weight: 700;
      color: var(--purple-1);
    }
    .price-note {
      margin-top: 16px;
      font-size: 12.5px;
      color: var(--ink-3);
      line-height: 1.6;
    }
    .network-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-content: start;
    }
    .net-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 18px 16px;
      display: flex;
      align-items: flex-start;
      gap: 12px;
      transition: transform .3s, box-shadow .3s;
    }
    .net-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-sm);
    }
    .net-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--purple-1), var(--purple-3));
      margin-top: 7px;
      flex-shrink: 0;
      box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.12);
    }
    .net-item h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 4px;
    }
    .net-item p {
      font-size: 12.5px;
      color: var(--ink-3);
      line-height: 1.55;
    }
    @media (max-width: 900px) {
      .network-grid {
        grid-template-columns: 1fr;
      }
      .network-list {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 480px) {
      .network-list {
        grid-template-columns: 1fr;
      }
    }

    /* ===== 表单 ===== */
    .form-section {
      background:
        radial-gradient(ellipse 50% 50% at 90% 10%, rgba(168, 85, 247, 0.14), transparent 60%),
        linear-gradient(160deg, #faf5ff, #f0e6ff);
    }
    .form-wrap {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 36px;
      align-items: start;
    }
    .form-info h2 {
      font-size: clamp(24px, 3vw, 30px);
      font-weight: 800;
      color: var(--ink);
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .form-info p {
      font-size: 14.5px;
      color: var(--ink-3);
      margin-bottom: 12px;
    }
    .contact-list {
      list-style: none;
      margin-top: 22px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .contact-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 14px;
      color: var(--ink-2);
    }
    .contact-list li .ci {
      width: 34px;
      height: 34px;
      border-radius: 10px;
      background: #fff;
      border: 1px solid var(--line);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      flex-shrink: 0;
    }
    .form-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 30px 28px;
      box-shadow: var(--shadow-md);
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .form-field {
      margin-bottom: 16px;
    }
    .form-field label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--ink-2);
      margin-bottom: 6px;
    }
    .form-field input,
    .form-field select,
    .form-field textarea {
      width: 100%;
      padding: 11px 14px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--line);
      background: #fdfbff;
      font-size: 14px;
      color: var(--ink);
      font-family: var(--font);
      transition: border-color .2s, box-shadow .2s, background .2s;
    }
    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus {
      outline: none;
      border-color: var(--purple-2);
      background: #fff;
      box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.14);
    }
    .form-field textarea {
      resize: vertical;
      min-height: 100px;
    }
    .form-submit {
      width: 100%;
      margin-top: 6px;
      padding: 14px;
      font-size: 15px;
    }
    @media (max-width: 800px) {
      .form-wrap {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: #1e1b2e;
      color: #c9c4dd;
      padding: 56px 0 24px;
      position: relative;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
      gap: 32px;
      margin-bottom: 36px;
    }
    .footer-brand .footer-logo {
      max-width: 140px;
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 13.5px;
      line-height: 1.7;
      color: #a59fc0;
      margin-bottom: 16px;
    }
    .footer-col h4 {
      font-size: 14.5px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      font-size: 13.5px;
      color: #a59fc0;
      transition: color .2s;
    }
    .footer-links a:hover {
      color: #c084fc;
    }
    .footer-contact {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 13.5px;
      color: #a59fc0;
    }
    .footer-contact strong {
      color: #d8d3e8;
      font-weight: 600;
    }
    .footer-qr {
      margin-top: 14px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .footer-qr img {
      width: 76px;
      height: 76px;
      border-radius: 8px;
      border: 1px solid rgba(255,255,255,0.14);
      object-fit: cover;
    }
    .footer-qr span {
      font-size: 12.5px;
      color: #a59fc0;
      line-height: 1.5;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 20px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      font-size: 12.5px;
      color: #8d87a8;
    }
    .footer-bottom a {
      color: #8d87a8;
      transition: color .2s;
    }
    .footer-bottom a:hover {
      color: #c084fc;
    }
    @media (max-width: 900px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
      }
    }
    @media (max-width: 560px) {
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== 浮动客服 & 返回顶部 ===== */
    .float-tools {
      position: fixed;
      right: 20px;
      bottom: 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 90;
    }
    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: transform .25s, box-shadow .25s, background .25s;
      position: relative;
      color: var(--purple-1);
    }
    .float-btn:hover {
      transform: translateY(-3px) scale(1.04);
      box-shadow: var(--shadow-lg);
      background: var(--purple-soft);
    }
    .float-btn svg {
      width: 22px;
      height: 22px;
    }
    .qr-pop {
      position: absolute;
      right: 62px;
      bottom: 0;
      width: 150px;
      background: #fff;
      border-radius: 12px;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-lg);
      padding: 10px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(6px);
      transition: opacity .25s, transform .25s, visibility .25s;
    }
    .float-btn:hover .qr-pop,
    .float-btn:focus-within .qr-pop {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }
    .qr-pop img {
      width: 100%;
      border-radius: 6px;
      margin-bottom: 6px;
    }
    .qr-pop p {
      font-size: 11.5px;
      color: var(--ink-3);
      text-align: center;
      line-height: 1.4;
    }
    .to-top {
      display: none;
    }
    .to-top.show {
      display: flex;
    }
    @media (max-width: 480px) {
      .float-tools {
        right: 14px;
        bottom: 18px;
      }
      .float-btn {
        width: 44px;
        height: 44px;
      }
    }

    /* ===== 表格移动端横向滚动提示 ===== */
    .table-scroll-hint {
      text-align: center;
      font-size: 12px;
      color: var(--ink-3);
      margin-top: 10px;
    }
    @media (min-width: 760px) {
      .table-scroll-hint {
        display: none;
      }
    }