/* roulang page: index */
:root {
      --deep-wine: #7B1038;
      --sky-blue: #1BB1E6;
      --amber-gold: #D4A843;
      --warm-white: #FAF8F5;
      --charcoal: #1E1E1E;
      --text-primary: #1A1A1A;
      --text-secondary: #6B6B6B;
      --white: #FFFFFF;
      --border-light: #EBE7E2;
      --border-footer: #333333;
      --shadow-card: 0 4px 14px rgba(0,0,0,0.05);
      --shadow-hover: 0 12px 28px rgba(0,0,0,0.10);
      --radius-card: 14px;
      --radius-btn: 10px;
      --radius-input: 8px;
      --transition: 0.25s ease;
      --font-title: 'Noto Sans SC', sans-serif;
      --font-body: 'Inter', 'Noto Sans SC', sans-serif;
      --font-mono: 'JetBrains Mono', monospace;
    }

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

    body {
      font-family: var(--font-body);
      background-color: var(--warm-white);
      color: var(--text-primary);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    h1, h2, h3, h4 {
      font-family: var(--font-title);
      font-weight: 700;
      line-height: 1.25;
      color: var(--text-primary);
    }

    a {
      color: inherit;
      text-decoration: none;
    }

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

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 覆盖 Foundation 默认样式 */
    .row {
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

    .button {
      font-family: var(--font-body);
      border-radius: var(--radius-btn);
      font-weight: 600;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: none;
    }

    /* 导航栏 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 72px;
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(12px);
      box-shadow: 0 1px 8px rgba(0,0,0,0.04);
      z-index: 100;
      display: flex;
      align-items: center;
      border-bottom: 1px solid var(--border-light);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }

    .logo {
      font-family: var(--font-title);
      font-weight: 800;
      font-size: 1.6rem;
      color: var(--deep-wine);
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: -0.3px;
    }

    .logo i {
      font-size: 2rem;
      color: var(--deep-wine);
    }

    .nav-links {
      display: flex;
      gap: 36px;
      align-items: center;
    }

    .nav-links a {
      font-weight: 500;
      font-size: 0.95rem;
      color: #4A4A4A;
      transition: color 0.2s;
      position: relative;
      padding: 6px 0;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--deep-wine);
    }

    .nav-links a::after {
      content: '';
      display: block;
      width: 0;
      height: 2px;
      background: var(--deep-wine);
      transition: width 0.25s;
      margin-top: 2px;
    }

    .nav-links a:hover::after,
    .nav-links a.active::after {
      width: 100%;
    }

    .btn-primary {
      background: var(--amber-gold);
      color: white !important;
      padding: 14px 28px;
      border-radius: 30px;
      font-weight: 700;
      box-shadow: 0 6px 14px rgba(212,168,67,0.3);
      border: none;
      transition: 0.2s;
    }

    .btn-primary:hover {
      background: #b8912f;
      box-shadow: 0 8px 18px rgba(184,145,47,0.4);
      transform: translateY(-1px);
    }

    .btn-outline {
      background: transparent;
      border: 2px solid var(--sky-blue);
      color: var(--sky-blue);
      padding: 12px 28px;
      border-radius: 30px;
      font-weight: 600;
    }

    .btn-outline:hover {
      background: rgba(27,177,230,0.08);
      border-color: #1499c5;
      color: #1499c5;
    }

    .hamburger {
      display: none;
      font-size: 1.8rem;
      color: var(--deep-wine);
      cursor: pointer;
    }

    /* Hero */
    .hero {
      padding: 140px 0 100px;
      background: linear-gradient(135deg, #FAF8F5 0%, #F3EFEA 100%);
      position: relative;
      overflow: hidden;
    }

    .hero-content {
      display: flex;
      align-items: center;
      gap: 50px;
    }

    .hero-left {
      flex: 1;
    }

    .hero-left h1 {
      font-size: 3.2rem;
      font-weight: 900;
      color: var(--deep-wine);
      margin-bottom: 20px;
      line-height: 1.2;
    }

    .hero-left p {
      font-size: 1.2rem;
      color: var(--text-secondary);
      margin-bottom: 32px;
    }

    .hero-buttons {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }

    .hero-right {
      flex: 1;
      background: rgba(255,255,255,0.6);
      backdrop-filter: blur(8px);
      border-radius: 28px;
      padding: 28px;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-light);
    }

    .mock-data {
      display: flex;
      flex-direction: column;
      gap: 22px;
    }

    .data-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .data-label {
      font-weight: 500;
      color: var(--text-secondary);
    }

    .data-number {
      font-family: var(--font-mono);
      font-weight: 700;
      font-size: 2rem;
      color: var(--deep-wine);
      animation: countPulse 2s infinite alternate;
    }

    @keyframes countPulse {
      0% { opacity: 0.9; transform: scale(1); }
      100% { opacity: 1; transform: scale(1.02); }
    }

    /* 板块通用 */
    section {
      padding: 100px 0;
    }

    .section-title {
      text-align: center;
      margin-bottom: 56px;
    }

    .section-title h2 {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--deep-wine);
      margin-bottom: 12px;
    }

    .section-title p {
      color: var(--text-secondary);
      font-size: 1.1rem;
    }

    /* 数据看板 */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 28px;
    }

    .stat-card {
      background: white;
      border-radius: var(--radius-card);
      padding: 28px 18px;
      text-align: center;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-light);
      transition: var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }

    .stat-icon {
      font-size: 2rem;
      color: var(--sky-blue);
      margin-bottom: 12px;
    }

    .stat-number {
      font-family: var(--font-mono);
      font-size: 2.8rem;
      font-weight: 700;
      color: var(--deep-wine);
    }

    /* 服务矩阵 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3,1fr);
      gap: 30px;
    }

    .service-card {
      background: white;
      border-radius: var(--radius-card);
      padding: 36px 24px;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-light);
      transition: 0.2s;
    }

    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-hover);
    }

    .service-icon {
      background: var(--sky-blue);
      width: 58px;
      height: 58px;
      border-radius: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-size: 1.8rem;
      margin-bottom: 22px;
    }

    .service-card h3 {
      font-size: 1.5rem;
      margin-bottom: 12px;
    }

    /* 对比区 */
    .compare-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }

    .compare-box {
      background: white;
      border-radius: var(--radius-card);
      padding: 36px;
      box-shadow: var(--shadow-card);
    }

    .compare-box.left {
      background: #f5f5f5;
    }

    .compare-box.right {
      background: #F9F2F5;
      border-left: 5px solid var(--deep-wine);
    }

    .compare-item {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 18px;
      font-size: 1rem;
    }

    /* FAQ */
    .accordion-faq {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      border-bottom: 1px solid var(--border-light);
      padding: 18px 0;
    }

    .faq-question {
      font-weight: 700;
      font-size: 1.2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      color: var(--text-primary);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      color: #4A4A4A;
      padding-right: 20px;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-top: 14px;
    }

    /* CTA */
    .cta-section {
      background: var(--charcoal);
      padding: 90px 0;
      text-align: center;
    }

    .cta-form {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
      margin-top: 32px;
    }

    .cta-form input {
      padding: 14px 20px;
      border-radius: 30px;
      border: none;
      background: white;
      min-width: 200px;
    }

    /* Footer */
    .footer {
      background: var(--charcoal);
      color: #AAAAAA;
      padding: 60px 0 20px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 30px;
    }

    .footer h4 {
      color: white;
      margin-bottom: 18px;
    }

    @media (max-width: 1024px) {
      .stats-grid { grid-template-columns: repeat(2,1fr); }
      .service-grid { grid-template-columns: repeat(2,1fr); }
    }

    @media (max-width: 768px) {
      .nav-links { display: none; }
      .hamburger { display: block; }
      .hero-content { flex-direction: column; }
      .compare-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: repeat(2,1fr); }
      .cta-form { flex-direction: column; align-items: center; }
    }