/* roulang page: index */
/* ----- 设计变量与全局重置 ----- */
    :root {
      --primary-dark: #0B1E2F;
      --accent-green: #00E676;
      --accent-red: #FF3D00;
      --bg-light: #F0F2F5;
      --card-white: #FFFFFF;
      --text-dark: #1a2b3c;
      --text-soft: rgba(255,255,255,0.8);
      --border-light: #E0E0E0;
      --shadow-sm: 0 4px 20px rgba(0,0,0,0.08);
      --shadow-hover: 0 8px 30px rgba(0,0,0,0.12);
      --radius-card: 8px;
      --radius-btn: 4px;
      --radius-pill: 20px;
      --font-title: 'Oswald', sans-serif;
      --font-body: 'Noto Sans SC', sans-serif;
      --transition: all 0.25s ease;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: var(--font-body);
      background-color: var(--bg-light);
      color: var(--text-dark);
      line-height: 1.7;
      font-weight: 400;
      -webkit-font-smoothing: antialiased;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input {
      font-family: var(--font-body);
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 标题字体全局 */
    h1, h2, h3, .nav-logo, .btn, .stat-number, .card-title, .faq-question {
      font-family: var(--font-title);
      font-weight: 600;
      letter-spacing: 0.3px;
    }
    h2 {
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 2rem;
      display: flex;
      align-items: center;
    }
    h2::before {
      content: '';
      display: inline-block;
      width: 4px;
      height: 2.2rem;
      background-color: var(--accent-green);
      margin-right: 1rem;
      border-radius: 2px;
    }
    .btn {
      display: inline-block;
      font-weight: 600;
      padding: 0.8rem 2rem;
      border-radius: var(--radius-btn);
      letter-spacing: 0.5px;
      cursor: pointer;
      transition: var(--transition);
      text-align: center;
      border: none;
      background: transparent;
    }
    .btn-primary {
      background-color: var(--accent-green);
      color: var(--primary-dark);
      box-shadow: 0 4px 12px rgba(0,230,118,0.3);
    }
    .btn-primary:hover {
      background-color: #00C853;
      box-shadow: 0 0 0 3px rgba(0,230,118,0.5);
      transform: translateY(-1px);
      color: var(--primary-dark);
    }
    .btn-outline {
      border: 2px solid var(--accent-green);
      color: var(--accent-green);
      background: transparent;
    }
    .btn-outline:hover {
      background-color: rgba(0,230,118,0.08);
    }
    /* 导航栏 */
    .main-header {
      background-color: var(--primary-dark);
      height: 70px;
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: 0 2px 10px rgba(0,0,0,0.3);
      display: flex;
      align-items: center;
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }
    .nav-logo {
      font-size: 1.6rem;
      font-weight: 700;
      color: white;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .logo-icon {
      font-size: 2rem;
      color: var(--accent-green);
    }
    .search-wrapper {
      flex: 1;
      max-width: 420px;
      margin: 0 2rem;
      position: relative;
    }
    .search-wrapper input {
      width: 100%;
      background: white;
      border: none;
      border-radius: var(--radius-pill);
      padding: 0.7rem 1.2rem 0.7rem 2.8rem;
      font-size: 0.95rem;
      color: #333;
      outline: none;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }
    .search-wrapper input::placeholder {
      color: #999;
    }
    .search-wrapper .fa-search {
      position: absolute;
      left: 1.2rem;
      top: 50%;
      transform: translateY(-50%);
      color: #888;
      font-size: 1rem;
    }
    .nav-links {
      display: flex;
      gap: 2rem;
      align-items: center;
    }
    .nav-links a {
      color: rgba(255,255,255,0.85);
      font-family: var(--font-title);
      font-weight: 500;
      font-size: 1rem;
      letter-spacing: 0.5px;
    }
    .nav-links a:hover {
      color: var(--accent-green);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      color: white;
      font-size: 1.8rem;
      cursor: pointer;
    }
    /* Hero */
    #hero {
      min-height: 85vh;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      position: relative;
      display: flex;
      align-items: center;
      color: white;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 20% 30%, rgba(11,30,47,0.4) 0%, rgba(11,30,47,0.85) 90%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }
    .hero-left {
      flex: 1 1 500px;
    }
    .hero-left h1 {
      font-size: 3.5rem;
      font-weight: 700;
      line-height: 1.2;
      text-shadow: 0 4px 12px rgba(0,0,0,0.5);
    }
    .hero-left .sub {
      font-size: 1.3rem;
      margin: 1.5rem 0 2rem;
      color: var(--text-soft);
    }
    .hero-right {
      flex: 0 0 360px;
      background: rgba(11,30,47,0.7);
      backdrop-filter: blur(12px);
      border-radius: 16px;
      padding: 1.8rem;
      border: 1px solid rgba(255,255,255,0.15);
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }
    .live-panel h3 {
      color: var(--accent-green);
      font-size: 1.3rem;
      margin-bottom: 1rem;
    }
    .match-row {
      display: flex;
      justify-content: space-between;
      margin-bottom: 1rem;
      font-weight: 500;
    }
    .progress-bar {
      height: 6px;
      background: rgba(255,255,255,0.2);
      border-radius: 3px;
      margin: 0.8rem 0;
    }
    .progress-fill {
      width: 68%;
      height: 100%;
      background: var(--accent-green);
      border-radius: 3px;
    }
    /* 通用section间距 */
    section {
      padding: 5rem 0;
    }
    /* 解决方案 */
    #solution .grid-x {
      align-items: flex-start;
    }
    .solution-left .card {
      background: var(--card-white);
      border-radius: var(--radius-card);
      padding: 1.8rem;
      box-shadow: var(--shadow-sm);
      margin-bottom: 1.5rem;
      transition: var(--transition);
    }
    .solution-left .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .solution-left .card i {
      font-size: 2rem;
      color: var(--accent-green);
      margin-bottom: 0.8rem;
    }
    .dark-card {
      background: var(--primary-dark);
      color: white;
      border-radius: var(--radius-card);
      padding: 2rem;
      backdrop-filter: blur(8px);
    }
    .match-list-item {
      display: flex;
      justify-content: space-between;
      padding: 0.7rem 0;
      border-bottom: 1px solid rgba(255,255,255,0.15);
    }
    /* 成果卡片 */
    .stat-card {
      background: linear-gradient(135deg, #0B1E2F 0%, #132b40 100%);
      color: white;
      border-radius: var(--radius-card);
      padding: 2rem;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .stat-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .stat-number {
      font-size: 2.8rem;
      font-weight: 700;
      color: var(--accent-green);
      position: relative;
      display: inline-block;
    }
    .stat-number::after {
      content: '';
      position: absolute;
      left: -8px;
      bottom: 5px;
      width: 12px;
      height: 8px;
      background: var(--accent-red);
      clip-path: polygon(0 0, 100% 0, 80% 100%, 0 100%);
    }
    /* 证言卡片 */
    .testimonial-scroll {
      display: flex;
      gap: 24px;
      overflow-x: auto;
      padding-bottom: 1rem;
    }
    .testimonial-card {
      background: var(--card-white);
      border-radius: var(--radius-card);
      padding: 1.8rem;
      min-width: 300px;
      flex: 0 0 auto;
      box-shadow: var(--shadow-sm);
      border-left: 5px solid var(--accent-green);
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    .testimonial-card img {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      object-fit: cover;
    }
    /* FAQ */
    .accordion-item {
      background: white;
      border-radius: 6px;
      margin-bottom: 12px;
      border: 1px solid var(--border-light);
    }
    .accordion-title {
      font-family: var(--font-title);
      font-weight: 600;
      font-size: 1.1rem;
      padding: 1rem 1.5rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .accordion-content {
      padding: 0 1.5rem 1.2rem;
      display: none;
      color: #444;
    }
    .accordion-item.active .accordion-content {
      display: block;
    }
    .accordion-item.active .accordion-title {
      color: var(--accent-green);
    }
    /* CTA区域 */
    #cta {
      background-color: var(--primary-dark);
      color: white;
    }
    .cta-form input {
      padding: 0.9rem;
      border-radius: var(--radius-btn);
      border: none;
      width: 100%;
      max-width: 320px;
    }
    /* 页脚 */
    .footer {
      background: var(--primary-dark);
      color: rgba(255,255,255,0.7);
      padding: 3rem 0 2rem;
      border-top: 3px solid var(--accent-green);
    }
    .footer a:hover {
      color: var(--accent-green);
    }
    /* 移动端调整 */
    @media (max-width: 1024px) {
      .hero-left h1 { font-size: 2.8rem; }
      .hero-right { flex: 0 0 300px; }
    }
    @media (max-width: 768px) {
      .nav-links, .search-wrapper { display: none; }
      .mobile-menu-btn { display: block; }
      .hero-content { flex-direction: column; }
      .hero-right { margin-top: 2rem; width: 100%; }
      .testimonial-scroll { flex-wrap: nowrap; overflow-x: auto; }
    }
    @media (max-width: 520px) {
      h2 { font-size: 1.8rem; }
      .hero-left h1 { font-size: 2.2rem; }
    }