/* roulang page: index */
:root {
      --deep-purple-black: #1A0A2E;
      --dark-bg: #0D0B1E;
      --electric-purple: #B44DFF;
      --warning-orange: #FF6B35;
      --light-bg: #F8F6FA;
      --text-light: #F0E6FF;
      --text-muted: #B0A0C0;
      --text-dark: #1A0A2E;
      --card-dark-bg: rgba(26,10,46,0.7);
      --card-border: rgba(180,77,255,0.25);
      --neon-glow: 0 0 20px rgba(180,77,255,0.15);
      --white-card-shadow: 0 4px 24px rgba(0,0,0,0.06);
      --border-radius-card: 12px;
      --border-radius-btn: 8px;
      --border-radius-input: 6px;
      --bs-primary: #B44DFF;
      --bs-primary-rgb: 180,77,255;
      --bs-body-bg: #0D0B1E;
      --bs-body-color: #F0E6FF;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
      background-color: var(--dark-bg);
      color: var(--text-light);
      margin: 0;
      line-height: 1.8;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    h1, h2, h3, h4 {
      letter-spacing: 0.02em;
      font-weight: 700;
    }

    h1 {
      font-size: 42px;
      font-weight: 700;
    }

    h2 {
      font-size: 32px;
      font-weight: 700;
    }

    h3 {
      font-size: 20px;
      font-weight: 600;
    }

    p {
      max-width: 680px;
      color: var(--text-muted);
    }

    a {
      color: var(--electric-purple);
      text-decoration: none;
      transition: color 0.2s;
    }

    a:hover {
      color: #CE7BFF;
    }

    .container {
      max-width: 1140px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部信息条 */
    .top-info-bar {
      background-color: #0D0B1E;
      height: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: #B0A0C0;
      border-bottom: 1px solid rgba(180,77,255,0.3);
      padding: 0 20px;
    }
    .top-info-left {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .top-info-right {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    /* 主导航 */
    .main-nav {
      height: 64px;
      background: rgba(13, 11, 30, 0.8);
      backdrop-filter: blur(10px);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 20px;
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid rgba(180,77,255,0.15);
    }
    .logo {
      font-size: 24px;
      font-weight: 700;
      background: linear-gradient(135deg, #B44DFF, #E0A0FF);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .logo i {
      background: none;
      -webkit-text-fill-color: #B44DFF;
      font-size: 28px;
    }
    .nav-links {
      display: flex;
      gap: 28px;
      align-items: center;
    }
    .nav-links a {
      color: #F0E6FF;
      font-size: 15px;
      font-weight: 500;
      transition: 0.2s;
      position: relative;
    }
    .nav-links a:hover {
      color: #B44DFF;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0%;
      height: 2px;
      background: #B44DFF;
      transition: 0.2s;
    }
    .nav-links a:hover::after {
      width: 100%;
    }

    /* 汉堡菜单 */
    .hamburger {
      display: none;
      font-size: 24px;
      color: #F0E6FF;
      cursor: pointer;
    }

    /* Hero */
    .hero-section {
      min-height: 100vh;
      background: radial-gradient(circle at center, #2D1B4E 0%, #1A0A2E 70%, #0D0B1E 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      position: relative;
      padding: 60px 20px;
      overflow: hidden;
    }
    .hero-bg-pattern {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.25;
      z-index: 0;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
      margin: 0 auto;
    }
    .hero h1 {
      color: #F0E6FF;
      animation: fadeInUp 1s ease;
    }
    .hero-sub {
      font-size: 18px;
      color: #B0A0C0;
      margin: 20px 0 30px;
    }
    .dynamic-data {
      font-size: 18px;
      color: #FF6B35;
      margin: 20px 0;
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .btn-gradient {
      background: linear-gradient(135deg, #B44DFF, #FF6B35);
      border: none;
      color: white;
      font-weight: 600;
      padding: 14px 32px;
      border-radius: 8px;
      font-size: 18px;
      transition: all 0.3s ease;
      box-shadow: 0 0 25px rgba(180,77,255,0.5);
      display: inline-block;
    }
    .btn-gradient:hover {
      background: linear-gradient(135deg, #CE7BFF, #FF8C5A);
      transform: translateY(-2px);
      box-shadow: 0 0 35px rgba(255,107,53,0.6);
      color: white;
    }

    /* 通用区块 */
    section {
      padding: 80px 0;
    }
    .section-dark {
      background-color: #0D0B1E;
    }
    .section-light {
      background-color: #F8F6FA;
      color: #1A0A2E;
    }
    .section-light h2, .section-light h3 {
      color: #1A0A2E;
    }
    .section-light p {
      color: #4A3B5C;
    }

    /* 卡片通用 */
    .card-dark {
      background: rgba(26,10,46,0.7);
      border: 1px solid rgba(180,77,255,0.25);
      border-radius: 12px;
      padding: 28px;
      box-shadow: 0 0 20px rgba(180,77,255,0.15);
      transition: 0.25s;
    }
    .card-dark:hover {
      border-color: #B44DFF;
      transform: translateY(-4px);
      box-shadow: 0 0 30px rgba(180,77,255,0.3);
    }
    .card-white {
      background: white;
      border-radius: 12px;
      padding: 28px;
      box-shadow: 0 4px 24px rgba(0,0,0,0.06);
      transition: 0.25s;
      border-left: 4px solid #B44DFF;
    }
    .card-white:hover {
      box-shadow: 0 8px 30px rgba(0,0,0,0.1);
      transform: translateY(-3px);
    }

    .stat-number {
      font-size: 56px;
      font-weight: 800;
      color: #B44DFF;
      line-height: 1.2;
    }

    .testimonial-card {
      background: white;
      border-radius: 12px;
      padding: 24px;
      display: flex;
      gap: 16px;
      align-items: flex-start;
      box-shadow: 0 4px 20px rgba(0,0,0,0.04);
    }
    .avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background-color: #ddd;
    }

    .faq-accordion .accordion-button {
      background-color: rgba(26,10,46,0.7);
      color: #F0E6FF;
      font-weight: 600;
      border: none;
      box-shadow: none;
      padding: 18px 20px;
    }
    .faq-accordion .accordion-button:not(.collapsed) {
      background-color: rgba(26,10,46,0.9);
      color: #FF6B35;
      border-left: 4px solid #FF6B35;
    }
    .faq-accordion .accordion-item {
      background: transparent;
      border: 1px solid rgba(180,77,255,0.2);
      margin-bottom: 12px;
      border-radius: 8px;
    }

    .form-control {
      background: rgba(13,11,30,0.8);
      border: 1px solid #B44DFF;
      color: white;
      border-radius: 6px;
    }
    .form-control:focus {
      border-color: #FF6B35;
      box-shadow: 0 0 0 0.2rem rgba(255,107,53,0.25);
      background: #0D0B1E;
    }

    footer {
      background: #0D0B1E;
      padding: 40px 0 20px;
      font-size: 13px;
      color: #706090;
    }

    @keyframes fadeInUp {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }

    @media (max-width: 768px) {
      h1 { font-size: 30px; }
      h2 { font-size: 26px; }
      .nav-links { display: none; }
      .hamburger { display: block; }
      .top-info-bar span { display: none; }
      .top-info-bar i { font-size: 14px; }
    }
    @media (max-width: 576px) {
      .hero-section { padding: 40px 16px; }
      .stat-number { font-size: 40px; }
    }