/* roulang page: index */
:root {
      --primary: #0A6E7C;
      --primary-hover: #085862;
      --primary-light: #E6F2F4;
      --accent-gold: #D49B3E;
      --accent-gold-dark: #C08832;
      --bg-page: #F7F9FB;
      --bg-card: #FFFFFF;
      --bg-data: #EDF3F5;
      --text-main: #1E2B2F;
      --text-secondary: #5E6E74;
      --text-muted: #8A9AA0;
      --text-white: #FFFFFF;
      --border-light: #E0E8EC;
      --shadow-card: 0 2px 12px rgba(10,110,124,0.06);
      --shadow-card-hover: 0 8px 28px rgba(10,110,124,0.12);
      --radius-card: 12px;
      --radius-btn: 8px;
      --font-title: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
      --font-number: "DIN Alternate", "Roboto", "Inter", sans-serif;
      --max-width: 1200px;
      --nav-height: 68px;
      --topbar-height: 36px;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: var(--font-title);
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    button, input {
      font-family: inherit;
    }
    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 顶部信息条 */
    .top-bar {
      height: var(--topbar-height);
      background: var(--primary);
      color: rgba(255,255,255,0.9);
      font-size: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      z-index: 10;
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    .top-domain {
      font-weight: 600;
      letter-spacing: 0.5px;
    }
    .top-marquee {
      overflow: hidden;
      white-space: nowrap;
      max-width: 240px;
      text-overflow: ellipsis;
      color: #D4E9EC;
    }
    .top-links a {
      color: white;
      margin-left: 18px;
      font-weight: 500;
      transition: opacity 0.2s;
    }
    .top-links a:hover {
      opacity: 0.8;
    }
    /* 主导航 */
    .main-header {
      background: white;
      height: var(--nav-height);
      box-shadow: 0 1px 4px rgba(0,0,0,0.03);
      position: sticky;
      top: 0;
      z-index: 50;
      display: flex;
      align-items: center;
    }
    .header-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    .logo {
      font-size: 24px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: 0.8px;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .logo span {
      color: var(--accent-gold);
      font-size: 28px;
    }
    .nav-menu {
      display: flex;
      gap: 28px;
      list-style: none;
    }
    .nav-menu a {
      font-size: 15px;
      font-weight: 500;
      color: #333;
      padding: 6px 0;
      border-bottom: 2px solid transparent;
      transition: color 0.2s, border-color 0.2s;
    }
    .nav-menu a:hover,
    .nav-menu a.active {
      color: var(--primary);
      border-bottom-color: var(--primary);
    }
    .hamburger {
      display: none;
      background: none;
      border: none;
      font-size: 26px;
      color: var(--primary);
      cursor: pointer;
    }
    /* Hero */
    .hero {
      background: var(--bg-page);
      position: relative;
      overflow: hidden;
      padding: 60px 0;
      display: flex;
      align-items: center;
      min-height: 580px;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
    }
    .hero .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 30px;
      position: relative;
      z-index: 2;
    }
    .hero-left {
      flex: 1 1 480px;
    }
    .hero h1 {
      font-size: 44px;
      font-weight: 700;
      line-height: 1.2;
      color: #0A2E35;
      margin-bottom: 18px;
      text-shadow: 0 2px 4px rgba(255,255,255,0.6);
    }
    .hero-sub {
      font-size: 18px;
      color: #3E555B;
      margin-bottom: 32px;
      max-width: 460px;
    }
    .btn-gold {
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
      border: none;
      color: white;
      padding: 14px 36px;
      border-radius: var(--radius-btn);
      font-weight: 700;
      font-size: 17px;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(212,155,62,0.3);
      transition: transform 0.2s, box-shadow 0.2s;
      display: inline-block;
    }
    .btn-gold:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(212,155,62,0.4);
    }
    .hero-right {
      flex: 1 1 320px;
      display: flex;
      justify-content: center;
    }
    .pulse-circles {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
      justify-content: center;
    }
    .pulse-item {
      background: rgba(255,255,255,0.8);
      backdrop-filter: blur(8px);
      border-radius: 50%;
      width: 110px;
      height: 110px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 0 10px 24px rgba(10,110,124,0.2);
      border: 2px solid rgba(10,110,124,0.2);
      animation: softPulse 2.8s infinite;
    }
    @keyframes softPulse {
      0% { transform: scale(1); box-shadow: 0 6px 18px rgba(10,110,124,0.15); }
      50% { transform: scale(1.04); box-shadow: 0 14px 28px rgba(10,110,124,0.25); }
      100% { transform: scale(1); box-shadow: 0 6px 18px rgba(10,110,124,0.15); }
    }
    .pulse-number {
      font-family: var(--font-number);
      font-weight: 700;
      font-size: 24px;
      color: var(--primary);
    }
    .pulse-label {
      font-size: 12px;
      color: var(--text-secondary);
      margin-top: 4px;
    }
    /* 通用板块 */
    section {
      padding: 70px 0;
    }
    .section-title {
      font-size: 32px;
      font-weight: 600;
      margin-bottom: 16px;
      color: #0A2E35;
    }
    .section-desc {
      color: var(--text-secondary);
      margin-bottom: 40px;
      font-size: 18px;
    }
    /* 数据看板 */
    .data-dashboard {
      background: var(--bg-data);
      border-radius: 28px;
      margin-top: -40px;
      position: relative;
      z-index: 5;
      padding: 32px 40px;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 24px;
      text-align: center;
    }
    .stat-item .stat-number {
      font-family: var(--font-number);
      font-size: 36px;
      font-weight: 700;
      color: var(--primary);
    }
    .stat-label {
      font-size: 14px;
      color: var(--text-muted);
    }
    .btn-outline {
      background: transparent;
      border: 1.5px solid var(--primary);
      color: var(--primary);
      padding: 10px 28px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      transition: 0.2s;
      cursor: pointer;
      margin-top: 24px;
      display: inline-block;
    }
    .btn-outline:hover {
      background: var(--primary-light);
    }
    /* 服务卡片 2x3 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3,1fr);
      gap: 28px;
      margin-top: 20px;
    }
    .service-card {
      background: var(--bg-card);
      border-radius: var(--radius-card);
      padding: 28px 20px;
      box-shadow: var(--shadow-card);
      transition: all 0.25s;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
    }
    .service-card:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-4px);
    }
    .service-icon {
      font-size: 32px;
      color: var(--primary);
      margin-bottom: 14px;
    }
    .service-card h3 {
      font-size: 20px;
      font-weight: 600;
      margin-bottom: 10px;
    }
    .compare-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .compare-col {
      padding: 28px;
      border-radius: 16px;
    }
    .compare-jjb {
      background: #E6F2F4;
    }
    .compare-other {
      background: #F0F2F3;
    }
    .compare-list {
      list-style: none;
      margin-top: 16px;
    }
    .compare-list li {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .check-gold {
      color: var(--accent-gold);
      font-weight: bold;
    }
    .cross-gray {
      color: #B0BEC5;
    }
    /* FAQ */
    .faq-item {
      background: white;
      border-radius: 10px;
      margin-bottom: 12px;
      box-shadow: 0 1px 6px rgba(0,0,0,0.03);
      overflow: hidden;
    }
    .faq-question {
      background: none;
      border: none;
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      font-weight: 600;
      font-size: 17px;
      display: flex;
      align-items: center;
      gap: 12px;
      cursor: pointer;
      color: var(--text-main);
    }
    .faq-dot {
      width: 8px;
      height: 8px;
      background: var(--accent-gold);
      border-radius: 50%;
    }
    .faq-answer {
      padding: 0 24px 20px;
      color: var(--text-secondary);
      display: none;
      font-size: 15px;
    }
    .faq-item.open .faq-answer {
      display: block;
    }
    /* 表单 */
    .cta-form {
      background: #F0F4F6;
      border-radius: 20px;
      padding: 36px;
    }
    .form-row {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }
    .form-input {
      flex: 1;
      height: 48px;
      border: 1px solid #DDD;
      border-radius: var(--radius-btn) 0 0 var(--radius-btn);
      padding: 0 16px;
      font-size: 16px;
    }
    .form-input:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(10,110,124,0.1);
    }
    .btn-submit {
      background: linear-gradient(135deg, #D49B3E, #C08832);
      color: white;
      border: none;
      padding: 0 32px;
      border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
      font-weight: 700;
      cursor: pointer;
    }
    .footer {
      background: #1A2B2F;
      color: #B0C4C8;
      padding: 48px 0 24px;
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 30px;
    }
    @media (max-width: 1024px) {
      .services-grid { grid-template-columns: repeat(2,1fr); }
      .stats-grid { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 768px) {
      .nav-menu { display: none; flex-direction: column; background: white; position: absolute; top:68px; left:0; width:100%; padding:20px; }
      .nav-menu.open { display: flex; }
      .hamburger { display: block; }
      .hero h1 { font-size: 32px; }
      .compare-wrapper { grid-template-columns: 1fr; }
      .services-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .form-row { flex-direction: column; }
      .btn-submit { border-radius: var(--radius-btn); }
      .form-input { border-radius: var(--radius-btn); }
    }