/* roulang page: index */
:root {
      --primary: #E1332C;
      --primary-dark: #C02A24;
      --primary-light-bg: #FFF0EF;
      --accent: #F5A623;
      --dark-bg: #1A1F2E;
      --gray-bg: #F9FAFC;
      --card-white: #FFFFFF;
      --card-gray: #F0F2F5;
      --text-main: #1A1F2E;
      --text-secondary: #5A6170;
      --text-light: #FFFFFF;
      --border-light: #E5E7EB;
      --radius-card: 18px;
      --radius-btn: 10px;
      --radius-input: 8px;
      --shadow-card: 0 8px 24px rgba(26,31,46,0.06);
      --shadow-hover: 0 14px 32px rgba(26,31,46,0.10);
      --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, sans-serif;
      --transition: all 0.2s ease;
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: var(--font-sans);
      background-color: var(--gray-bg);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      width: 100%;
    }
    
    /* 导航栏 */
    .navbar {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      transition: var(--transition);
      box-shadow: 0 4px 12px rgba(0,0,0,0.02);
    }
    .navbar .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      flex-wrap: wrap;
    }
    .logo {
      font-size: 1.7rem;
      font-weight: 700;
      letter-spacing: 1px;
      color: var(--text-main);
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .logo span {
      color: var(--primary);
    }
    .search-box {
      display: flex;
      align-items: center;
      background: var(--card-gray);
      border-radius: 24px;
      padding: 8px 18px;
      flex: 0 1 320px;
      margin: 0 20px;
      border: 1px solid transparent;
      transition: var(--transition);
    }
    .search-box i {
      color: var(--text-secondary);
      font-size: 1rem;
      margin-right: 8px;
    }
    .search-box input {
      border: none;
      background: transparent;
      outline: none;
      font-size: 0.95rem;
      width: 100%;
      color: var(--text-main);
    }
    .search-box:focus-within {
      border-color: var(--primary);
      background: white;
      box-shadow: 0 0 0 3px rgba(225,51,44,0.1);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-links a {
      text-decoration: none;
      color: var(--text-main);
      font-weight: 500;
      font-size: 0.95rem;
      transition: color 0.2s;
      white-space: nowrap;
    }
    .nav-links a:hover {
      color: var(--primary);
    }
    .hamburger {
      display: none;
      background: none;
      border: none;
      font-size: 1.6rem;
      cursor: pointer;
      color: var(--text-main);
    }
    
    /* 各板块通用 */
    section {
      padding: 80px 0;
    }
    .section-title {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-title h2 {
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .section-title p {
      color: var(--text-secondary);
      font-size: 1.1rem;
    }
    
    /* 按钮系统 */
    .btn {
      display: inline-block;
      border-radius: var(--radius-btn);
      font-weight: 600;
      text-decoration: none;
      transition: var(--transition);
      padding: 12px 28px;
      text-align: center;
      cursor: pointer;
      border: 1.5px solid transparent;
    }
    .btn-primary {
      background: var(--primary);
      color: white;
      border-color: var(--primary);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      border-color: var(--primary-dark);
      transform: scale(1.02);
    }
    .btn-outline {
      background: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }
    .btn-outline:hover {
      background: var(--primary-light-bg);
    }
    .btn-ghost {
      background: transparent;
      border-color: white;
      color: white;
    }
    .btn-ghost:hover {
      background: white;
      color: var(--primary);
    }
    
    /* Hero */
    .hero {
      background: var(--dark-bg);
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      padding: 90px 0 100px;
      color: white;
    }
    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(26,31,46,0.8);
    }
    .hero .container {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 40px;
    }
    .hero-content {
      flex: 1 1 500px;
    }
    .hero h1 {
      font-size: 3.3rem;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 20px;
    }
    .hero .highlight {
      color: var(--accent);
    }
    .hero p {
      font-size: 1.15rem;
      color: rgba(255,255,255,0.8);
      margin-bottom: 32px;
      max-width: 550px;
    }
    .hero-actions {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
    }
    .live-ticker {
      background: rgba(255,255,255,0.08);
      backdrop-filter: blur(8px);
      border-radius: 60px;
      padding: 10px 24px;
      margin-top: 40px;
      display: flex;
      align-items: center;
      gap: 24px;
      color: var(--accent);
      font-weight: 600;
      width: fit-content;
      flex-wrap: wrap;
    }
    .live-ticker span {
      color: white;
      margin-right: 4px;
    }
    .hero-visual {
      flex: 1 1 400px;
      background: rgba(255,255,255,0.05);
      border-radius: 24px;
      padding: 24px;
      backdrop-filter: blur(4px);
    }
    .score-mock {
      background: rgba(0,0,0,0.3);
      border-radius: 18px;
      padding: 20px;
    }
    
    /* 服务卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .service-card {
      background: var(--card-white);
      border-radius: var(--radius-card);
      padding: 32px 24px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      text-align: center;
    }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
    .icon-box {
      width: 64px;
      height: 64px;
      background: #FFEBE9;
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      color: var(--primary);
      font-size: 1.8rem;
    }
    
    /* 优势数据 */
    .advantages {
      background: white;
    }
    .badge-row {
      display: flex;
      justify-content: center;
      gap: 48px;
      flex-wrap: wrap;
      text-align: center;
    }
    .badge-item .number {
      font-size: 3.2rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
    }
    .badge-item .label {
      color: var(--text-secondary);
      font-weight: 500;
      margin-top: 8px;
    }
    
    /* 案例网格 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 24px;
    }
    .case-card {
      background: var(--card-white);
      border-radius: var(--radius-card);
      padding: 24px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      text-align: center;
    }
    .case-card:hover {
      transform: translateY(-4px);
    }
    .case-logo {
      height: 70px;
      background: #f4f5f7;
      border-radius: 14px;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      filter: grayscale(1);
      transition: 0.3s;
    }
    .case-card:hover .case-logo {
      filter: grayscale(0);
    }
    
    /* 流程步骤 */
    .steps {
      display: flex;
      justify-content: space-between;
      text-align: center;
      gap: 20px;
      flex-wrap: wrap;
    }
    .step-item {
      flex: 1;
      min-width: 160px;
    }
    .step-num {
      width: 56px;
      height: 56px;
      background: var(--primary);
      color: white;
      border-radius: 50%;
      font-weight: 700;
      font-size: 1.5rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
    }
    
    /* FAQ */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
    }
    .faq-item {
      border-bottom: 1px solid var(--border-light);
      padding: 20px 0;
    }
    .faq-question {
      display: flex;
      justify-content: space-between;
      font-weight: 700;
      cursor: pointer;
      font-size: 1.1rem;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      color: var(--text-secondary);
    }
    .faq-item.active .faq-answer {
      max-height: 150px;
      margin-top: 12px;
    }
    
    /* 联系 */
    .contact-wrap {
      display: flex;
      gap: 40px;
      flex-wrap: wrap;
    }
    .form-card {
      flex: 2;
      background: white;
      border-radius: var(--radius-card);
      padding: 32px;
    }
    .form-card input, .form-card textarea {
      width: 100%;
      padding: 14px;
      margin-bottom: 18px;
      background: var(--card-gray);
      border: 1px solid transparent;
      border-radius: var(--radius-input);
      font-family: inherit;
    }
    .form-card input:focus {
      border-color: var(--primary);
      outline: none;
    }
    .info-side {
      flex: 1;
      background: var(--dark-bg);
      border-radius: var(--radius-card);
      padding: 32px;
      color: white;
    }
    
    .footer {
      background: var(--dark-bg);
      color: #b0b5c0;
      padding: 48px 0 24px;
    }
    
    @media (max-width: 1024px) {
      .services-grid, .cases-grid { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 768px) {
      .nav-links, .search-box { display: none; }
      .hamburger { display: block; }
      .hero h1 { font-size: 2.4rem; }
      .services-grid, .cases-grid { grid-template-columns: 1fr; }
      .badge-row { gap: 28px; }
    }