/* roulang page: index */
:root {
      --deep-blue: #0A1628;
      --glow-green: #00E5A0;
      --accent-orange: #FF6B35;
      --card-bg: rgba(15, 30, 51, 0.6);
      --border-subtle: rgba(0, 229, 160, 0.15);
      --text-primary: #FFFFFF;
      --text-body: #B0C4DE;
      --text-muted: #6B7F99;
      --dark-bg-alt: #0F1E33;
      --shadow-card: 0 8px 32px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.06);
      --shadow-glow: 0 0 24px rgba(0, 229, 160, 0.5);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-btn: 50px;
      --font-inter: 'Inter', 'SF Pro Display', sans-serif;
      --font-chinese: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: var(--font-chinese);
      background-color: var(--deep-blue);
      color: var(--text-body);
      line-height: 1.7;
      font-weight: 400;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    @media (max-width: 767px) {
      .container {
        padding: 0 16px;
      }
    }
    /* 顶部信息条 */
    .top-bar {
      background: #060E1A;
      height: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
      border-bottom: 1px solid rgba(0,229,160,0.2);
      padding: 0 24px;
      color: var(--text-muted);
    }
    .top-bar .status {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .online-dot {
      width: 8px;
      height: 8px;
      background: var(--glow-green);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--glow-green);
      display: inline-block;
    }
    .top-bar .scroll-text {
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 320px;
      color: var(--text-body);
    }
    .top-bar .quick-links a {
      color: var(--text-muted);
      text-decoration: none;
      margin-left: 20px;
      transition: color 0.2s;
    }
    .top-bar .quick-links a:hover {
      color: var(--glow-green);
    }
    /* 导航栏 */
    .navbar {
      position: sticky;
      top: 0;
      z-index: 50;
      height: 68px;
      background: rgba(10, 22, 40, 0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      display: flex;
      align-items: center;
      border-bottom: 1px solid rgba(0,229,160,0.1);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .logo {
      font-size: 24px;
      font-weight: 700;
      background: linear-gradient(135deg, #00E5A0 0%, #0ccb8c 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 8px;
      text-decoration: none;
    }
    .logo-icon {
      width: 28px;
      height: 28px;
      background: radial-gradient(circle at 30% 30%, rgba(0,229,160,0.8), transparent 70%);
      border: 1px solid rgba(0,229,160,0.4);
      border-radius: 6px;
    }
    .nav-menu {
      display: flex;
      gap: 32px;
      align-items: center;
    }
    .nav-menu a {
      color: var(--text-body);
      text-decoration: none;
      font-weight: 500;
      font-size: 15px;
      transition: color 0.2s;
      position: relative;
    }
    .nav-menu a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--glow-green);
      transition: width 0.2s ease;
    }
    .nav-menu a:hover::after,
    .nav-menu a.active::after {
      width: 100%;
    }
    .nav-menu a:hover {
      color: #fff;
    }
    .btn-primary-sm {
      background: var(--glow-green);
      color: var(--deep-blue);
      font-weight: 700;
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      text-decoration: none;
      box-shadow: 0 0 16px rgba(0, 229, 160, 0.4);
      transition: all 0.25s;
      font-size: 14px;
      border: none;
      cursor: pointer;
      display: inline-block;
    }
    .btn-primary-sm:hover {
      box-shadow: 0 0 28px rgba(0, 229, 160, 0.7);
      transform: scale(1.03);
    }
    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      background: transparent;
      border: none;
    }
    .hamburger span {
      width: 25px;
      height: 2px;
      background: var(--glow-green);
      transition: 0.3s;
    }
    @media (max-width: 1023px) {
      .nav-menu {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        width: 100%;
        background: rgba(10,22,40,0.95);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border-subtle);
      }
      .nav-menu.active {
        display: flex;
      }
      .hamburger {
        display: flex;
      }
    }
    /* Hero */
    .hero {
      min-height: 90vh;
      display: flex;
      align-items: center;
      background-image: radial-gradient(circle at 80% 20%, rgba(0,229,160,0.12) 0%, transparent 45%);
      position: relative;
    }
    .hero-grid {
      display: flex;
      align-items: center;
      gap: 40px;
    }
    .hero-left {
      flex: 1 1 60%;
    }
    .hero-right {
      flex: 1 1 40%;
      display: flex;
      justify-content: center;
      align-items: center;
    }
    .badge {
      display: inline-block;
      border: 1px solid rgba(0,229,160,0.5);
      color: var(--glow-green);
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 13px;
      margin-bottom: 20px;
    }
    h1 {
      font-size: 48px;
      font-weight: 700;
      line-height: 1.15;
      color: var(--text-primary);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-sub {
      font-size: 18px;
      color: var(--text-body);
      margin-bottom: 32px;
      max-width: 500px;
    }
    .btn-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: var(--glow-green);
      color: var(--deep-blue);
      font-weight: 700;
      padding: 14px 36px;
      border-radius: var(--radius-btn);
      text-decoration: none;
      box-shadow: var(--shadow-glow);
      transition: all 0.3s;
      border: none;
      cursor: pointer;
      display: inline-block;
      text-align: center;
    }
    .btn-primary:hover {
      box-shadow: 0 0 40px rgba(0, 229, 160, 0.7);
      transform: scale(1.04);
    }
    .btn-ghost {
      background: transparent;
      border: 1.5px solid rgba(0,229,160,0.5);
      color: var(--glow-green);
      padding: 14px 36px;
      border-radius: var(--radius-btn);
      text-decoration: none;
      font-weight: 600;
      transition: all 0.25s;
    }
    .btn-ghost:hover {
      background: rgba(0,229,160,0.1);
      border-color: var(--glow-green);
    }
    .dashboard-preview {
      background: rgba(15,30,51,0.7);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 24px;
      width: 100%;
    }
    .mini-chart {
      height: 120px;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      border-radius: 8px;
      opacity: 0.8;
      margin-bottom: 16px;
    }
    @media (max-width: 767px) {
      .hero-grid {
        flex-direction: column;
        text-align: center;
      }
      h1 {
        font-size: 32px;
      }
      .btn-group {
        justify-content: center;
      }
    }
    /* 指标看板 */
    .metrics-section {
      padding: 80px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .metric-card {
      background: var(--card-bg);
      backdrop-filter: blur(16px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
    }
    .metric-number {
      font-family: var(--font-inter);
      font-size: 48px;
      font-weight: 700;
      color: var(--glow-green);
      text-shadow: 0 0 18px rgba(0,229,160,0.5);
      line-height: 1.2;
    }
    @media (max-width: 1023px) {
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 520px) {
      .metrics-grid {
        grid-template-columns: 1fr;
      }
    }
    /* 服务矩阵 */
    .services {
      padding: 80px 0;
    }
    .section-title {
      font-size: 32px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 48px;
      text-align: center;
    }
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: var(--card-bg);
      backdrop-filter: blur(16px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      transition: all 0.3s;
    }
    .service-card:hover {
      border-color: rgba(0,229,160,0.35);
      transform: translateY(-6px);
      box-shadow: 0 16px 40px rgba(0,0,0,0.5);
    }
    .service-icon {
      width: 48px;
      height: 48px;
      background: rgba(0,229,160,0.1);
      border-radius: 12px;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--glow-green);
    }
    @media (max-width: 1023px) {
      .service-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 520px) {
      .service-grid {
        grid-template-columns: 1fr;
      }
    }
    /* 对比区 */
    .comparison {
      background: #0F1E33;
      padding: 80px 0;
    }
    .compare-row {
      display: flex;
      gap: 24px;
      align-items: stretch;
    }
    .compare-card {
      flex: 1;
      background: rgba(10,22,40,0.8);
      border-radius: var(--radius-lg);
      padding: 32px;
      border: 1px solid transparent;
    }
    .compare-card.hth {
      border-color: var(--glow-green);
      background: rgba(0,229,160,0.05);
    }
    @media (max-width: 767px) {
      .compare-row {
        flex-direction: column;
      }
    }
    /* 流程 */
    .process {
      padding: 80px 0;
    }
    .steps {
      display: flex;
      justify-content: space-between;
      position: relative;
    }
    .step {
      text-align: center;
      flex: 1;
    }
    @media (max-width: 767px) {
      .steps {
        flex-direction: column;
        gap: 32px;
      }
    }
    /* FAQ */
    .faq {
      padding: 80px 0;
    }
    .faq-item {
      background: var(--card-bg);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      padding: 20px;
      cursor: pointer;
    }
    .faq-question {
      font-weight: 600;
      color: #fff;
      display: flex;
      justify-content: space-between;
    }
    /* CTA */
    .cta-final {
      padding: 80px 0;
      background: radial-gradient(circle at 50% 0%, rgba(0,229,160,0.08), transparent);
    }
    .cta-card {
      background: rgba(15,30,51,0.8);
      backdrop-filter: blur(20px);
      border: 1px solid var(--border-subtle);
      border-radius: 24px;
      padding: 48px;
      text-align: center;
    }
    .input-email {
      background: #0A1628;
      border: 1px solid rgba(255,255,255,0.15);
      color: #fff;
      padding: 14px 20px;
      border-radius: 8px;
      width: 280px;
      margin-right: 12px;
    }
    .input-email:focus {
      border-color: var(--glow-green);
      outline: none;
    }
    /* 页脚 */
    .footer {
      background: #060E1A;
      padding: 48px 0 24px;
      border-top: 1px solid rgba(0,229,160,0.15);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
    }
    @media (max-width: 767px) {
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }