/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');

    :root {
      --deep-space: #0B1A2E;
      --starlight-gold: #C8A96E;
      --gold-hover: #B8944F;
      --nebula-grey: #6B7B8D;
      --warm-bg: #F5F3EF;
      --pure-white: #FFFFFF;
      --glow-cyan: #5EA8A7;
      --font-title: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
      --font-body: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
      --font-number: 'DIN Alternate', 'PingFang SC', sans-serif;
      --card-shadow: 0 2px 16px rgba(11, 26, 46, 0.06);
      --card-shadow-hover: 0 8px 28px rgba(11, 26, 46, 0.10);
      --border-radius-card: 12px;
      --border-radius-btn: 8px;
      --border-radius-input: 6px;
      --transition-smooth: 0.3s ease;
    }

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

    body {
      font-family: var(--font-body);
      background-color: var(--warm-bg);
      color: var(--deep-space);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }

    h1, h2, h3, h4 {
      font-family: var(--font-title);
      font-weight: 600;
      letter-spacing: -0.01em;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 40px;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s;
    }

    button, .btn {
      cursor: pointer;
      font-family: var(--font-title);
      font-weight: 600;
      transition: all var(--transition-smooth);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: none;
    }

    /* 导航 */
    .main-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 50;
      transition: background 0.25s ease, box-shadow 0.25s ease;
      background: transparent;
    }

    .main-header.scrolled {
      background: rgba(11, 26, 46, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    }

    .nav-row-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 40px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .logo {
      font-family: var(--font-title);
      font-weight: 700;
      font-size: 1.6rem;
      color: var(--starlight-gold);
      letter-spacing: 2px;
      white-space: nowrap;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .search-icon {
      color: white;
      font-size: 1.2rem;
      opacity: 0.8;
      cursor: pointer;
    }

    .btn-consult {
      background: var(--starlight-gold);
      color: var(--deep-space);
      padding: 10px 22px;
      border-radius: var(--border-radius-btn);
      font-size: 0.9rem;
      font-weight: 600;
      white-space: nowrap;
    }

    .btn-consult:hover {
      background: var(--gold-hover);
      transform: scale(1.03);
    }

    .nav-row-bottom {
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 8px 40px;
      gap: 8px;
      flex-wrap: wrap;
    }

    .pill-tab {
      background: transparent;
      color: rgba(255,255,255,0.8);
      padding: 8px 18px;
      border-radius: 40px;
      font-size: 0.9rem;
      font-weight: 500;
      transition: all 0.2s;
      white-space: nowrap;
      border: 1px solid transparent;
    }

    .pill-tab:hover {
      color: white;
      background: rgba(255,255,255,0.1);
    }

    .pill-tab.active {
      background: rgba(200, 169, 110, 0.15);
      color: var(--starlight-gold);
      border-color: var(--starlight-gold);
      font-weight: 600;
    }

    .hamburger {
      display: none;
      font-size: 1.8rem;
      color: white;
      background: none;
      border: none;
    }

    /* 区块间距 */
    section {
      padding: 90px 0;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--deep-space);
      margin-bottom: 16px;
      text-align: center;
    }

    .section-sub {
      color: var(--nebula-grey);
      text-align: center;
      max-width: 640px;
      margin: 0 auto 50px;
      font-size: 1.1rem;
    }

    /* Hero */
    .hero-grid {
      display: grid;
      grid-template-columns: 5fr 7fr;
      align-items: center;
      min-height: 90vh;
      gap: 40px;
    }

    .hero-text {
      padding-right: 20px;
    }

    .hero-text h1 {
      font-size: 3.4rem;
      font-weight: 700;
      color: var(--deep-space);
      line-height: 1.2;
      margin-bottom: 20px;
    }

    .hero-text .gold-line {
      width: 50px;
      height: 3px;
      background: var(--starlight-gold);
      margin-bottom: 24px;
    }

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

    .btn-primary {
      background: var(--starlight-gold);
      color: var(--deep-space);
      padding: 16px 38px;
      border-radius: var(--border-radius-btn);
      font-size: 1.1rem;
      font-weight: 700;
      gap: 8px;
    }

    .btn-primary:hover {
      background: var(--gold-hover);
      transform: scale(1.03);
    }

    .hero-visual {
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      border-radius: 28px;
      min-height: 520px;
      box-shadow: 0 20px 40px rgba(11,26,46,0.2);
      position: relative;
    }

    /* 指标 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }

    .metric-item .number {
      font-family: var(--font-number);
      font-size: 3.2rem;
      font-weight: 700;
      color: var(--starlight-gold);
      line-height: 1.1;
    }

    .metric-item .desc {
      color: var(--nebula-grey);
      margin-top: 8px;
      font-size: 1rem;
    }

    /* 服务卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .service-card {
      background: var(--pure-white);
      border-radius: var(--border-radius-card);
      padding: 32px 28px;
      box-shadow: var(--card-shadow);
      transition: all var(--transition-smooth);
      border-top: 4px solid transparent;
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--card-shadow-hover);
      border-top-color: var(--starlight-gold);
    }

    .icon-circle {
      width: 48px;
      height: 48px;
      background: rgba(94, 168, 167, 0.1);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--glow-cyan);
      font-size: 1.6rem;
      margin-bottom: 20px;
    }

    .service-card h3 {
      font-size: 1.4rem;
      margin-bottom: 12px;
    }

    .service-card p {
      color: var(--nebula-grey);
      font-size: 0.95rem;
    }

    /* 对比 */
    .compare-panel {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: white;
      border-radius: 24px;
      padding: 40px;
      box-shadow: var(--card-shadow);
    }

    .compare-left, .compare-right {
      padding: 25px;
      border-radius: 16px;
    }

    .compare-left {
      background: #f0f2f4;
    }

    .compare-right {
      background: rgba(200, 169, 110, 0.08);
      border: 1px solid rgba(200, 169, 110, 0.2);
    }

    .compare-item {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
      font-size: 1rem;
    }

    /* FAQ */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      background: white;
      border-radius: 12px;
      margin-bottom: 12px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.03);
      overflow: hidden;
    }

    .faq-question {
      padding: 20px 28px;
      font-weight: 600;
      font-size: 1.1rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      background: white;
      border: none;
      width: 100%;
      text-align: left;
    }

    .faq-answer {
      padding: 0 28px 20px;
      color: var(--nebula-grey);
      display: none;
    }

    .faq-item.open .faq-answer {
      display: block;
    }

    .faq-icon {
      transition: transform 0.3s;
    }

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

    /* 表单 */
    .contact-grid {
      display: grid;
      grid-template-columns: 7fr 5fr;
      gap: 40px;
    }

    .form-card {
      background: white;
      padding: 40px;
      border-radius: 20px;
      box-shadow: var(--card-shadow);
    }

    .input-group {
      margin-bottom: 20px;
    }

    .input-group label {
      display: block;
      margin-bottom: 6px;
      font-weight: 500;
      color: var(--deep-space);
    }

    .input-group input, .input-group textarea {
      width: 100%;
      padding: 14px 16px;
      border: 1px solid #dce1e6;
      border-radius: var(--border-radius-input);
      font-family: var(--font-body);
      transition: 0.2s;
      background: #fafbfc;
    }

    .input-group input:focus, .input-group textarea:focus {
      outline: none;
      border-color: var(--starlight-gold);
      box-shadow: 0 0 0 3px rgba(200,169,110,0.15);
    }

    .btn-full {
      width: 100%;
      background: var(--starlight-gold);
      color: var(--deep-space);
      padding: 16px;
      font-weight: 700;
      border-radius: var(--border-radius-btn);
    }

    .info-card {
      background: var(--deep-space);
      color: white;
      padding: 36px;
      border-radius: 20px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .footer {
      background: var(--deep-space);
      color: #b0bec5;
      padding: 48px 0 30px;
    }

    .footer-grid {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
    }

    @media (max-width: 1024px) {
      .container { padding: 0 24px; }
      .hero-grid { grid-template-columns: 1fr; text-align: center; }
      .hero-text { padding-right: 0; }
      .hero-visual { min-height: 340px; order: -1; }
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .nav-row-bottom { overflow-x: auto; justify-content: flex-start; padding: 8px 16px; flex-wrap: nowrap; gap: 8px; scrollbar-width: none; }
      .nav-row-bottom::-webkit-scrollbar { display: none; }
      .hamburger { display: block; }
      .nav-actions .btn-consult { display: none; }
      .services-grid { grid-template-columns: 1fr; }
      .compare-panel { grid-template-columns: 1fr; }
      .contact-grid { grid-template-columns: 1fr; }
      .hero-text h1 { font-size: 2.4rem; }
    }