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

    :root {
      --rose: #d6335c;
      --rose-deep: #b0234a;
      --rose-soft: #fce8ee;
      --rose-mist: #fff5f8;
      --ink: #1e1e24;
      --ink-soft: #4a4a55;
      --line: #f0d4dd;
      --gold: #b8860b;
      --card-bg: #ffffff;
      --shadow: 0 10px 30px rgba(214, 51, 92, 0.07);
      --shadow-hover: 0 18px 42px rgba(214, 51, 92, 0.14);
      --radius: 18px;
      --radius-sm: 12px;
      --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font);
      color: var(--ink);
      background: #fdf8f9;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      max-width: 1180px;
      margin: 0 auto;
      padding: 0 24px;
      width: 100%;
    }

    a {
      color: var(--rose);
      text-decoration: none;
      transition: color 0.25s;
    }

    a:hover {
      color: var(--rose-deep);
    }

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

    /* ---------- 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);
    }

    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 68px;
      gap: 20px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .brand .ai-page-logo {
      max-width: 132px;
      height: auto;
    }

    .brand-name {
      font-size: 18px;
      font-weight: 800;
      color: var(--ink);
      letter-spacing: 1px;
      white-space: nowrap;
    }

    .brand-name span {
      color: var(--rose);
    }

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

    .nav-links li a {
      display: inline-block;
      padding: 8px 13px;
      font-size: 14px;
      color: var(--ink-soft);
      font-weight: 500;
      border-radius: 8px;
      transition: background 0.25s, color 0.25s;
      white-space: nowrap;
    }

    .nav-links li a:hover {
      background: var(--rose-soft);
      color: var(--rose-deep);
    }

    .nav-cta {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 10px 22px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      border: none;
      cursor: pointer;
      transition: transform 0.22s, box-shadow 0.22s, background 0.22s;
      white-space: nowrap;
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, #e04574, #c02a56);
      color: #fff;
      box-shadow: 0 8px 20px rgba(214, 51, 92, 0.32);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(214, 51, 92, 0.42);
      color: #fff;
    }

    .btn-ghost {
      background: #fff;
      color: var(--rose-deep);
      border: 1.5px solid var(--rose);
    }

    .btn-ghost:hover {
      background: var(--rose-soft);
      transform: translateY(-2px);
      color: var(--rose-deep);
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--ink);
      border-radius: 2px;
      transition: transform 0.25s, opacity 0.25s;
    }

    .menu-toggle.active span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .menu-toggle.active span:nth-child(2) {
      opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* ---------- Hero ---------- */
    .hero {
      position: relative;
      overflow: hidden;
      padding: 88px 0 76px;
      background:
        radial-gradient(circle at 12% 20%, rgba(214, 51, 92, 0.16), transparent 46%),
        radial-gradient(circle at 88% 12%, rgba(255, 154, 185, 0.25), transparent 50%),
        radial-gradient(circle at 78% 88%, rgba(214, 51, 92, 0.12), transparent 46%),
        linear-gradient(160deg, #fff7f9 0%, #ffeeF3 48%, #fff5f8 100%);
    }

    .hero::before {
      content: '';
      position: absolute;
      width: 460px;
      height: 460px;
      right: -160px;
      top: -140px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(214, 51, 92, 0.14), transparent 70%);
      pointer-events: none;
    }

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

    .hero-inner {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #fff;
      border: 1px solid var(--line);
      color: var(--rose-deep);
      font-size: 13px;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: 999px;
      box-shadow: 0 4px 14px rgba(214, 51, 92, 0.08);
      margin-bottom: 22px;
    }

    .hero-tag::before {
      content: '';
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--rose);
      box-shadow: 0 0 0 4px rgba(214, 51, 92, 0.15);
    }

    .hero h1 {
      font-size: 42px;
      line-height: 1.25;
      font-weight: 900;
      letter-spacing: 0.5px;
      color: var(--ink);
      margin-bottom: 20px;
    }

    .hero h1 em {
      font-style: normal;
      color: var(--rose-deep);
      background: linear-gradient(120deg, #d6335c, #f06292);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .hero-desc {
      font-size: 16px;
      color: var(--ink-soft);
      max-width: 560px;
      margin-bottom: 30px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
      margin-bottom: 34px;
    }

    .hero-actions .btn {
      padding: 14px 30px;
      font-size: 15px;
    }

    .hero-mini-note {
      font-size: 13px;
      color: #8c6b76;
      background: rgba(255, 255, 255, 0.7);
      border-radius: 999px;
      padding: 6px 16px;
      border: 1px dashed var(--line);
    }

    .hero-panel {
      background: rgba(255, 255, 255, 0.82);
      border: 1px solid rgba(214, 51, 92, 0.16);
      border-radius: 26px;
      padding: 30px 28px;
      box-shadow: 0 24px 60px rgba(214, 51, 92, 0.12);
      backdrop-filter: blur(8px);
    }

    .panel-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--rose-deep);
      letter-spacing: 1px;
      margin-bottom: 18px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .panel-title::before {
      content: '';
      width: 4px;
      height: 16px;
      border-radius: 2px;
      background: var(--rose);
    }

    .model-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-pills span {
      font-size: 12.5px;
      color: var(--ink-soft);
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 8px;
      padding: 5px 11px;
      transition: background 0.2s, color 0.2s, transform 0.2s;
    }

    .model-pills span:hover {
      background: var(--rose);
      border-color: var(--rose);
      color: #fff;
      transform: translateY(-2px);
    }

    .hero-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 24px;
      padding-top: 22px;
      border-top: 1px dashed var(--line);
    }

    .hero-stat {
      text-align: center;
    }

    .hero-stat strong {
      display: block;
      font-size: 24px;
      font-weight: 900;
      color: var(--rose-deep);
      letter-spacing: -0.5px;
    }

    .hero-stat small {
      font-size: 12px;
      color: var(--ink-soft);
    }

    /* ---------- 通用 section ---------- */
    .section {
      padding: 78px 0;
      position: relative;
    }

    .section-alt {
      background:
        radial-gradient(circle at 0% 0%, rgba(214, 51, 92, 0.06), transparent 40%),
        linear-gradient(180deg, #fff8fa, #fdf3f6);
    }

    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 48px;
    }

    .section-kicker {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 2px;
      color: var(--rose);
      background: var(--rose-soft);
      padding: 5px 16px;
      border-radius: 999px;
      margin-bottom: 16px;
    }

    .section-head h2 {
      font-size: 32px;
      font-weight: 900;
      color: var(--ink);
      line-height: 1.35;
      margin-bottom: 14px;
    }

    .section-head p {
      font-size: 15.5px;
      color: var(--ink-soft);
    }

    /* ---------- 卡片通用 ---------- */
    .card {
      background: var(--card-bg);
      border: 1px solid #f6e2e8;
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    }

    .card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: #f0c5d2;
    }

    /* ---------- 数据指标 ---------- */
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .metric-card {
      padding: 28px 24px;
      border-radius: var(--radius);
      background: #fff;
      border: 1px solid #f6e2e8;
      box-shadow: var(--shadow);
      text-align: center;
      transition: transform 0.3s, box-shadow 0.3s;
    }

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

    .metric-card strong {
      display: block;
      font-size: 34px;
      font-weight: 900;
      color: var(--rose-deep);
      line-height: 1.2;
      margin-bottom: 6px;
      letter-spacing: -1px;
    }

    .metric-card span {
      font-size: 13.5px;
      color: var(--ink-soft);
    }

    /* ---------- 服务能力 ---------- */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .service-card {
      padding: 28px 24px;
    }

    .service-icon {
      width: 46px;
      height: 46px;
      border-radius: 14px;
      background: linear-gradient(135deg, #fce8ee, #ffe0ea);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      font-size: 20px;
      font-weight: 800;
      color: var(--rose-deep);
    }

    .service-card h3 {
      font-size: 17px;
      font-weight: 800;
      color: var(--ink);
      margin-bottom: 8px;
    }

    .service-card p {
      font-size: 14px;
      color: var(--ink-soft);
      line-height: 1.68;
    }

    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 14px;
    }

    .service-tags span {
      font-size: 11.5px;
      color: var(--rose-deep);
      background: var(--rose-soft);
      border-radius: 6px;
      padding: 3px 9px;
    }

    /* ---------- 流程步骤 ---------- */
    .flow-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      position: relative;
    }

    .flow-step {
      background: #fff;
      border: 1px solid #f6e2e8;
      border-radius: var(--radius);
      padding: 26px 20px;
      box-shadow: var(--shadow);
      position: relative;
      transition: transform 0.3s, box-shadow 0.3s;
    }

    .flow-step:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }

    .flow-num {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #e04574, #c02a56);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 14px;
      box-shadow: 0 6px 16px rgba(214, 51, 92, 0.28);
    }

    .flow-step h3 {
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 6px;
      color: var(--ink);
    }

    .flow-step p {
      font-size: 13.5px;
      color: var(--ink-soft);
    }

    /* ---------- 对比评测 ---------- */
    .compare-layout {
      display: grid;
      grid-template-columns: 1fr 1.9fr;
      gap: 28px;
      align-items: start;
    }

    .score-card {
      background: linear-gradient(150deg, #fff, #fff3f7);
      border: 1px solid #f2cdd9;
      border-radius: 22px;
      padding: 34px 28px;
      text-align: center;
      box-shadow: var(--shadow);
    }

    .score-stars {
      font-size: 24px;
      letter-spacing: 4px;
      color: #e04574;
      margin-bottom: 10px;
    }

    .score-value {
      font-size: 58px;
      font-weight: 900;
      color: var(--rose-deep);
      line-height: 1;
      letter-spacing: -2px;
    }

    .score-value small {
      font-size: 18px;
      font-weight: 600;
      color: var(--ink-soft);
      letter-spacing: 0;
    }

    .score-label {
      font-size: 14px;
      color: var(--ink-soft);
      margin-top: 10px;
    }

    .compare-table-wrap {
      background: #fff;
      border: 1px solid #f6e2e8;
      border-radius: 20px;
      padding: 6px;
      box-shadow: var(--shadow);
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 560px;
      font-size: 14px;
    }

    .compare-table th,
    .compare-table td {
      padding: 14px 16px;
      text-align: left;
      border-bottom: 1px solid #f8e6eb;
    }

    .compare-table thead th {
      background: var(--rose-mist);
      color: var(--rose-deep);
      font-weight: 800;
      font-size: 13.5px;
      white-space: nowrap;
    }

    .compare-table thead th:first-child {
      border-top-left-radius: 12px;
    }

    .compare-table thead th:last-child {
      border-top-right-radius: 12px;
    }

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

    .compare-table tbody td {
      color: var(--ink-soft);
    }

    .compare-table tbody td:first-child {
      font-weight: 700;
      color: var(--ink);
      white-space: nowrap;
    }

    .compare-good {
      color: var(--rose-deep) !important;
      font-weight: 700;
    }

    /* ---------- 案例展示 ---------- */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .case-card {
      padding: 0;
      overflow: hidden;
    }

    .case-media {
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: linear-gradient(135deg, #fce8ee, #ffe0ea);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-media img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .case-body {
      padding: 20px 22px 24px;
    }

    .case-body h3 {
      font-size: 16.5px;
      font-weight: 800;
      margin-bottom: 6px;
      color: var(--ink);
    }

    .case-body p {
      font-size: 13.5px;
      color: var(--ink-soft);
    }

    /* ---------- 用户评论 ---------- */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .review-card {
      padding: 26px 24px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .review-quote {
      font-size: 14.5px;
      color: var(--ink-soft);
      line-height: 1.78;
      flex: 1;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 14px;
      border-top: 1px dashed #f2d4dc;
    }

    .review-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #f8c8d6, #f09ab6);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 15px;
      flex-shrink: 0;
    }

    .review-user strong {
      display: block;
      font-size: 14px;
      color: var(--ink);
    }

    .review-user span {
      font-size: 12.5px;
      color: var(--ink-soft);
    }

    /* ---------- FAQ ---------- */
    .faq-list {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #fff;
      border: 1px solid #f4dde4;
      border-radius: 14px;
      overflow: hidden;
      transition: box-shadow 0.25s, border-color 0.25s;
    }

    .faq-item.active {
      border-color: #eab4c6;
      box-shadow: 0 10px 28px rgba(214, 51, 92, 0.1);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      padding: 18px 22px;
      font-size: 15px;
      font-weight: 700;
      color: var(--ink);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 14px;
      font-family: var(--font);
      transition: color 0.2s;
    }

    .faq-question:hover {
      color: var(--rose-deep);
    }

    .faq-icon {
      width: 22px;
      height: 22px;
      flex-shrink: 0;
      position: relative;
      transition: transform 0.3s;
    }

    .faq-icon::before,
    .faq-icon::after {
      content: '';
      position: absolute;
      background: var(--rose);
      border-radius: 2px;
      transition: transform 0.3s, opacity 0.3s;
    }

    .faq-icon::before {
      width: 12px;
      height: 2px;
      top: 10px;
      left: 5px;
    }

    .faq-icon::after {
      width: 2px;
      height: 12px;
      top: 5px;
      left: 10px;
    }

    .faq-item.active .faq-icon::after {
      transform: rotate(90deg);
      opacity: 0;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
    }

    .faq-answer-inner {
      padding: 0 22px 20px;
      font-size: 14px;
      color: var(--ink-soft);
      line-height: 1.78;
    }

    /* ---------- 表单 ---------- */
    .form-layout {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      align-items: start;
    }

    .form-card {
      background: #fff;
      border: 1px solid #f4dde4;
      border-radius: 22px;
      padding: 34px 30px;
      box-shadow: var(--shadow);
      transition: box-shadow 0.3s;
    }

    .form-card:hover {
      box-shadow: var(--shadow-hover);
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 16px;
    }

    .form-field {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-field label {
      font-size: 13px;
      font-weight: 600;
      color: var(--ink);
    }

    .form-field label .req {
      color: var(--rose);
    }

    .form-field input,
    .form-field select,
    .form-field textarea {
      font-family: var(--font);
      font-size: 14px;
      color: var(--ink);
      background: #fdf7f9;
      border: 1px solid #efd6de;
      border-radius: 10px;
      padding: 11px 14px;
      transition: border-color 0.22s, box-shadow 0.22s, background 0.22s;
      width: 100%;
    }

    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus {
      outline: none;
      border-color: var(--rose);
      background: #fff;
      box-shadow: 0 0 0 3px rgba(214, 51, 92, 0.1);
    }

    .form-field textarea {
      resize: vertical;
      min-height: 100px;
    }

    .form-submit {
      width: 100%;
      margin-top: 6px;
      padding: 14px;
      font-size: 15px;
    }

    .form-note {
      font-size: 12.5px;
      color: #9b7c86;
      margin-top: 12px;
      text-align: center;
    }

    .contact-side {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .contact-box {
      background: #fff;
      border: 1px solid #f4dde4;
      border-radius: 18px;
      padding: 24px;
      box-shadow: var(--shadow);
    }

    .contact-box h3 {
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 14px;
      color: var(--ink);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .contact-box h3::before {
      content: '';
      width: 4px;
      height: 15px;
      background: var(--rose);
      border-radius: 2px;
    }

    .contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 14px;
      color: var(--ink-soft);
    }

    .contact-list li {
      display: flex;
      gap: 8px;
    }

    .contact-list li strong {
      color: var(--ink);
      font-weight: 700;
      flex-shrink: 0;
    }

    .qr-wrap {
      text-align: center;
      background: #fff;
      border: 1px solid #f4dde4;
      border-radius: 18px;
      padding: 22px;
      box-shadow: var(--shadow);
    }

    .qr-wrap img {
      width: 168px;
      height: 168px;
      object-fit: contain;
      margin: 0 auto 12px;
      border-radius: 10px;
    }

    .qr-wrap p {
      font-size: 13px;
      color: var(--ink-soft);
    }

    /* ---------- 文章 / 资讯 ---------- */
    .article-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-card {
      padding: 24px 22px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .article-card .tag {
      align-self: flex-start;
      font-size: 11.5px;
      color: var(--rose-deep);
      background: var(--rose-soft);
      border-radius: 6px;
      padding: 3px 10px;
      font-weight: 600;
    }

    .article-card h3 {
      font-size: 16px;
      font-weight: 800;
      line-height: 1.5;
      color: var(--ink);
    }

    .article-card p {
      font-size: 13.5px;
      color: var(--ink-soft);
      flex: 1;
    }

    .article-card a.more {
      font-size: 13.5px;
      font-weight: 600;
      color: var(--rose);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .article-card a.more::after {
      content: '→';
      transition: transform 0.25s;
    }

    .article-card a.more:hover::after {
      transform: translateX(4px);
    }

    /* ---------- 行业方案标签云 ---------- */
    .tagcloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      list-style: none;
      max-width: 960px;
      margin: 0 auto;
    }

    .tagcloud li a {
      display: inline-block;
      font-size: 13.5px;
      color: var(--ink-soft);
      background: #fff;
      border: 1px solid #f0d4dd;
      border-radius: 999px;
      padding: 8px 18px;
      transition: all 0.25s;
    }

    .tagcloud li a:hover {
      background: var(--rose);
      border-color: var(--rose);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 18px rgba(214, 51, 92, 0.25);
    }

    /* ---------- 价格参考 / Token ---------- */
    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .price-card {
      padding: 30px 26px;
      text-align: center;
      position: relative;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .price-card.featured {
      border-color: var(--rose);
      box-shadow: 0 14px 36px rgba(214, 51, 92, 0.16);
    }

    .price-card.featured::before {
      content: '推荐';
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(135deg, #e04574, #c02a56);
      color: #fff;
      font-size: 11.5px;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 999px;
      white-space: nowrap;
    }

    .price-name {
      font-size: 16px;
      font-weight: 800;
      color: var(--ink);
    }

    .price-value {
      font-size: 34px;
      font-weight: 900;
      color: var(--rose-deep);
      line-height: 1;
    }

    .price-value small {
      font-size: 14px;
      font-weight: 500;
      color: var(--ink-soft);
    }

    .price-desc {
      font-size: 13px;
      color: var(--ink-soft);
    }

    .price-features {
      list-style: none;
      text-align: left;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 13.5px;
      color: var(--ink-soft);
      margin: 8px 0 6px;
    }

    .price-features li {
      display: flex;
      gap: 8px;
      align-items: flex-start;
    }

    .price-features li::before {
      content: '✓';
      color: var(--rose);
      font-weight: 800;
      flex-shrink: 0;
    }

    /* ---------- 时间线 ---------- */
    .timeline {
      display: flex;
      flex-direction: column;
      gap: 0;
      max-width: 760px;
      margin: 0 auto;
    }

    .tl-item {
      display: grid;
      grid-template-columns: 96px 1fr;
      gap: 24px;
      position: relative;
      padding-bottom: 34px;
    }

    .tl-item:last-child {
      padding-bottom: 0;
    }

    .tl-item::before {
      content: '';
      position: absolute;
      left: 96px;
      top: 10px;
      bottom: -4px;
      width: 2px;
      background: linear-gradient(180deg, #f2c6d3, #fce8ee);
      transform: translateX(-1px);
    }

    .tl-item:last-child::before {
      display: none;
    }

    .tl-time {
      font-size: 14px;
      font-weight: 800;
      color: var(--rose-deep);
      padding-top: 5px;
      text-align: right;
    }

    .tl-content {
      position: relative;
      padding-left: 26px;
    }

    .tl-content::before {
      content: '';
      position: absolute;
      left: -6px;
      top: 8px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: #fff;
      border: 3px solid var(--rose);
      box-shadow: 0 0 0 4px rgba(214, 51, 92, 0.12);
    }

    .tl-content h3 {
      font-size: 16px;
      font-weight: 800;
      color: var(--ink);
      margin-bottom: 4px;
    }

    .tl-content p {
      font-size: 13.8px;
      color: var(--ink-soft);
    }

    /* ---------- 服务网络 ---------- */
    .network-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .network-item {
      background: #fff;
      border: 1px solid #f4dde4;
      border-radius: 16px;
      padding: 24px 20px;
      text-align: center;
      transition: transform 0.3s, box-shadow 0.3s;
    }

    .network-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .network-item .city {
      font-size: 17px;
      font-weight: 800;
      color: var(--ink);
      margin-bottom: 4px;
    }

    .network-item .city-desc {
      font-size: 13px;
      color: var(--ink-soft);
    }

    /* ---------- 友情链接 ---------- */
    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 18px;
      justify-content: center;
      list-style: none;
      padding-top: 10px;
    }

    .friend-links li a {
      font-size: 13.5px;
      color: var(--ink-soft);
      transition: color 0.2s;
    }

    .friend-links li a:hover {
      color: var(--rose-deep);
      text-decoration: underline;
    }

    /* ---------- 表单 & 页脚 ---------- */
    .site-footer {
      background: #2a121c;
      color: #f6d7e1;
      padding: 52px 0 0;
      margin-top: 0;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 36px;
      padding-bottom: 36px;
      border-bottom: 1px solid rgba(246, 215, 225, 0.16);
    }

    .footer-brand h3 {
      font-size: 19px;
      font-weight: 900;
      color: #fff;
      margin-bottom: 10px;
    }

    .footer-brand p {
      font-size: 13.5px;
      color: #eec4d3;
      line-height: 1.75;
      margin-bottom: 14px;
    }

    .footer-col h4 {
      font-size: 14.5px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }

    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 9px;
    }

    .footer-col ul li a {
      font-size: 13.5px;
      color: #eec4d3;
      transition: color 0.2s;
    }

    .footer-col ul li a:hover {
      color: #fff;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      padding: 20px 0 26px;
      font-size: 12.5px;
      color: #d9aabb;
    }

    .footer-bottom a {
      color: #f0c4d4;
    }

    .footer-bottom a:hover {
      color: #fff;
    }

    /* ---------- 浮动客服 ---------- */
    .float-service {
      position: fixed;
      right: 22px;
      bottom: 26px;
      z-index: 200;
      display: flex;
      flex-direction: column;
      gap: 10px;
      align-items: center;
    }

    .float-btn {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: linear-gradient(135deg, #e04574, #c02a56);
      color: #fff;
      border: none;
      cursor: pointer;
      font-size: 13px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      line-height: 1.2;
      box-shadow: 0 10px 26px rgba(214, 51, 92, 0.38);
      transition: transform 0.25s, box-shadow 0.25s;
      text-decoration: none;
    }

    .float-btn:hover {
      transform: translateY(-3px);
      box-shadow: 0 14px 32px rgba(214, 51, 92, 0.5);
      color: #fff;
    }

    .float-btn svg {
      width: 20px;
      height: 20px;
      fill: #fff;
    }

    .back-top {
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s;
    }

    .back-top.show {
      opacity: 1;
      pointer-events: auto;
    }

    /* ---------- 滚动渐入 ---------- */
    .reveal {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity 0.65s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.65s cubic-bezier(0.22, 0.61, 0.36, 1);
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* ---------- 响应式 ---------- */
    @media (max-width: 1024px) {
      .hero h1 {
        font-size: 36px;
      }
      .service-grid,
      .case-grid,
      .review-grid,
      .article-grid,
      .price-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-wrap {
        grid-template-columns: repeat(2, 1fr);
      }
      .network-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
      }
    }

    @media (max-width: 900px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--line);
        flex-direction: column;
        align-items: stretch;
        padding: 12px 24px 18px;
        gap: 0;
        box-shadow: 0 18px 30px rgba(214, 51, 92, 0.1);
      }
      .nav-links.open {
        display: flex;
      }
      .nav-links li a {
        display: block;
        padding: 11px 6px;
        border-radius: 8px;
        font-size: 14.5px;
      }
      .menu-toggle {
        display: flex;
      }
      .nav-cta .btn {
        display: none;
      }
      .hero-inner {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .hero h1 {
        font-size: 32px;
      }
      .compare-layout {
        grid-template-columns: 1fr;
      }
      .form-layout {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 640px) {
      .section {
        padding: 56px 0;
      }
      .hero {
        padding: 56px 0 48px;
      }
      .hero h1 {
        font-size: 27px;
      }
      .hero-desc {
        font-size: 14.5px;
      }
      .hero-actions .btn {
        padding: 12px 22px;
        font-size: 14px;
        flex: 1 1 auto;
      }
      .section-head h2 {
        font-size: 24px;
      }
      .service-grid,
      .case-grid,
      .review-grid,
      .article-grid,
      .price-grid,
      .flow-wrap,
      .network-grid,
      .metric-grid {
        grid-template-columns: 1fr;
      }
      .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
      }
      .hero-stat strong {
        font-size: 20px;
      }
      .hero-stat small {
        font-size: 11px;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
        gap: 26px;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 8px;
      }
      .tl-item {
        grid-template-columns: 72px 1fr;
        gap: 16px;
      }
      .tl-item::before {
        left: 72px;
      }
      .score-value {
        font-size: 48px;
      }
      .float-service {
        right: 14px;
        bottom: 18px;
        gap: 8px;
      }
      .float-btn {
        width: 46px;
        height: 46px;
        font-size: 12px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      .reveal {
        opacity: 1;
        transform: none;
        transition: none;
      }
      * {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
      }
    }