/* roulang page: index */
* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    :root {
      --deep-space: #0A0E27;
      --electric-cyan: #00F0FF;
      --neon-pink: #FF3CAC;
      --soft-bg: #F5F5FF;
      --surface-white: #FFFFFF;
      --dark-surface: #131A33;
      --text-primary: #1E2130;
      --text-secondary: #2D3142;
      --text-muted: #6B7194;
      --border-light: rgba(10,14,39,0.08);
      --shadow-card: 0 8px 30px rgba(10,14,39,0.08);
      --shadow-hover: 0 16px 40px rgba(10,14,39,0.15);
      --radius-xl: 20px;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-full: 50px;
      --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Inter', system-ui, -apple-system, sans-serif;
      --font-mono: 'Space Grotesk', 'Inter', monospace;
      --transition: 0.3s ease;
    }
    body {
      font-family: var(--font-sans);
      background-color: var(--soft-bg);
      color: var(--text-secondary);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    button, input {
      font-family: inherit;
      outline: none;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 32px;
      width: 100%;
    }
    /* 导航 - 悬浮胶囊 */
    .navbar {
      position: fixed;
      top: 24px;
      left: 50%;
      transform: translateX(-50%);
      width: auto;
      max-width: 900px;
      background: rgba(10,14,39,0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-radius: 40px;
      padding: 8px 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      z-index: 1000;
      border: 1px solid rgba(255,255,255,0.1);
      box-shadow: 0 10px 25px rgba(0,0,0,0.3);
      transition: all 0.3s ease;
    }
    .logo {
      font-family: var(--font-mono);
      font-weight: 700;
      font-size: 1.5rem;
      letter-spacing: 1px;
      background: linear-gradient(135deg, var(--electric-cyan), #0088FF);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      white-space: nowrap;
    }
    .nav-links {
      display: flex;
      gap: 24px;
      align-items: center;
    }
    .nav-links a {
      color: #FFFFFF;
      font-weight: 500;
      font-size: 0.95rem;
      transition: color 0.2s, text-shadow 0.2s;
      position: relative;
      padding: 4px 0;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--electric-cyan);
      transition: width 0.25s ease;
    }
    .nav-links a:hover {
      color: var(--electric-cyan);
      text-shadow: 0 0 8px rgba(0,240,255,0.5);
    }
    .nav-links a:hover::after {
      width: 100%;
    }
    /* 移动端底部导航 */
    .mobile-bottom-nav {
      display: none;
    }
    /* Hero */
    .hero {
      background-color: var(--deep-space);
      background-image: radial-gradient(circle at 30% 40%, rgba(255,60,172,0.25) 0%, transparent 45%), radial-gradient(circle at 70% 60%, rgba(0,240,255,0.2) 0%, transparent 50%);
      position: relative;
      overflow: hidden;
      padding: 160px 0 120px;
      min-height: 90vh;
      display: flex;
      align-items: center;
    }
    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.25;
      z-index: 0;
    }
    .hero .container {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: clamp(2.8rem, 6vw, 3.8rem);
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 24px;
      background: linear-gradient(to right, var(--electric-cyan), #A0F0FF);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero-subtitle {
      font-size: 1.2rem;
      color: rgba(255,255,255,0.8);
      margin-bottom: 36px;
      max-width: 480px;
    }
    .btn-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--electric-cyan), #0088FF);
      border: none;
      color: #0A0E27;
      font-weight: 700;
      padding: 14px 36px;
      border-radius: var(--radius-full);
      font-size: 1rem;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 6px 18px rgba(0,240,255,0.3);
      letter-spacing: 0.5px;
      display: inline-block;
    }
    .btn-primary:hover {
      filter: brightness(1.15);
      box-shadow: 0 0 24px rgba(0,240,255,0.6);
      transform: translateY(-1px);
    }
    .btn-secondary {
      background: transparent;
      border: 1.5px solid var(--electric-cyan);
      color: var(--electric-cyan);
      font-weight: 600;
      padding: 14px 36px;
      border-radius: var(--radius-full);
      font-size: 1rem;
      cursor: pointer;
      transition: all 0.3s ease;
      background: rgba(0,240,255,0.03);
    }
    .btn-secondary:hover {
      background: rgba(0,240,255,0.1);
      border-color: #fff;
      color: #fff;
    }
    .hero-visual {
      display: flex;
      flex-direction: column;
      gap: 20px;
      align-items: flex-end;
    }
    .float-badge {
      background: rgba(19,26,51,0.8);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(0,240,255,0.25);
      border-radius: 14px;
      padding: 16px 20px;
      color: white;
      font-family: var(--font-mono);
      display: flex;
      align-items: center;
      gap: 16px;
      box-shadow: 0 10px 20px rgba(0,0,0,0.3);
      animation: float 3s ease-in-out infinite;
      width: fit-content;
    }
    .float-badge:nth-child(2) { animation-delay: 0.4s; }
    .float-badge:nth-child(3) { animation-delay: 0.8s; }
    @keyframes float {
      0% { transform: translateY(0); }
      50% { transform: translateY(-8px); }
      100% { transform: translateY(0); }
    }
    .badge-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--electric-cyan);
    }
    /* 板块通用 */
    section {
      padding: 90px 0;
    }
    .section-title {
      font-size: 2.3rem;
      font-weight: 700;
      color: var(--deep-space);
      margin-bottom: 16px;
      text-align: center;
    }
    .section-desc {
      color: var(--text-muted);
      text-align: center;
      max-width: 600px;
      margin: 0 auto 48px;
    }
    /* 痛点卡片 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .pain-card {
      background: var(--surface-white);
      border-radius: var(--radius-xl);
      padding: 32px;
      box-shadow: var(--shadow-card);
      display: flex;
      gap: 20px;
      align-items: flex-start;
      transition: var(--transition);
      border: 1px solid transparent;
    }
    .pain-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: var(--neon-pink);
      transform: translateY(-4px);
    }
    .pain-icon {
      font-size: 2.2rem;
      color: var(--neon-pink);
      opacity: 0.9;
    }
    /* 解决方案 Z型布局 */
    .solution-block {
      display: flex;
      align-items: center;
      gap: 60px;
      margin-bottom: 70px;
      flex-wrap: wrap;
    }
    .solution-block.reverse {
      flex-direction: row-reverse;
    }
    .solution-img {
      flex: 1;
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .solution-img img {
      width: 100%;
      object-fit: cover;
      aspect-ratio: 4/3;
    }
    .solution-text {
      flex: 1;
    }
    .solution-text h3 {
      font-size: 1.8rem;
      margin-bottom: 16px;
      color: var(--deep-space);
    }
    .stat-badge {
      display: inline-block;
      background: rgba(0,240,255,0.08);
      color: var(--electric-cyan);
      border: 1px solid var(--electric-cyan);
      border-radius: 30px;
      padding: 6px 18px;
      font-weight: 700;
      font-family: var(--font-mono);
      margin-top: 16px;
    }
    /* 成果徽章 */
    .stats-grid {
      display: flex;
      justify-content: center;
      gap: 40px;
      flex-wrap: wrap;
    }
    .hex-badge {
      width: 160px;
      height: 160px;
      background: var(--dark-surface);
      clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: white;
      border: 2px solid var(--electric-cyan);
      box-shadow: 0 0 20px rgba(0,240,255,0.2);
    }
    .hex-number {
      font-size: 2.2rem;
      font-weight: 800;
      font-family: var(--font-mono);
      color: var(--electric-cyan);
    }
    /* 证言 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testimonial-card {
      background: var(--surface-white);
      border-radius: var(--radius-xl);
      padding: 28px;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .testimonial-header {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .avatar {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: url('/assets/images/backpic/back-2.webp') center/cover;
      border: 2px solid var(--neon-pink);
    }
    .stars {
      color: var(--electric-cyan);
    }
    /* FAQ */
    .faq-item {
      background: var(--surface-white);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      padding: 20px 24px;
      border: 1px solid var(--border-light);
      cursor: pointer;
      transition: var(--transition);
    }
    .faq-item:hover {
      border-color: var(--electric-cyan);
      box-shadow: var(--shadow-hover);
    }
    .faq-question {
      font-weight: 700;
      display: flex;
      justify-content: space-between;
      color: var(--deep-space);
    }
    /* CTA */
    .cta-section {
      background: var(--deep-space);
      border-radius: 40px;
      padding: 70px 40px;
      text-align: center;
      margin: 40px 0;
    }
    .cta-input {
      display: flex;
      max-width: 500px;
      margin: 30px auto 0;
      gap: 12px;
    }
    .cta-input input {
      flex: 1;
      padding: 14px 24px;
      border-radius: 50px;
      border: 1px solid transparent;
      background: white;
    }
    .cta-input input:focus {
      border-color: var(--electric-cyan);
    }
    footer {
      background: var(--deep-space);
      color: #ccc;
      padding: 40px 0;
      text-align: center;
    }
    @media (max-width: 1024px) {
      .hero .container { grid-template-columns: 1fr; }
      .pain-grid, .testimonial-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .navbar { display: none; }
      .mobile-bottom-nav {
        display: flex;
        position: fixed;
        bottom: 16px;
        left: 50%;
        transform: translateX(-50%);
        background: rgba(10,14,39,0.9);
        backdrop-filter: blur(12px);
        border-radius: 40px;
        padding: 10px 24px;
        gap: 24px;
        z-index: 1000;
      }
      .pain-grid, .testimonial-grid { grid-template-columns: 1fr; }
      .stats-grid { gap: 20px; }
    }