/* roulang page: index */
:root {
      --primary-deep: #0B1E33;
      --accent-gold: #C89B3C;
      --bg-white: #FFFFFF;
      --bg-light: #F5F6F8;
      --bg-soft: #F7F9FC;
      --text-main: #1A1D22;
      --text-secondary: #5A5E66;
      --text-muted: #8E9299;
      --border-light: #E0E3E8;
      --success-green: #2E7D32;
      --shadow-sm: 0 2px 12px rgba(0,0,0,0.03);
      --shadow-md: 0 4px 20px rgba(0,0,0,0.04);
      --shadow-hover: 0 8px 28px rgba(0,0,0,0.07);
      --shadow-gold: 0 4px 16px rgba(200,155,60,0.3);
      --radius-sm: 12px;
      --radius-md: 16px;
      --radius-lg: 20px;
      --radius-pill: 50px;
      --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: var(--font-sans);
      background: var(--bg-white);
      color: var(--text-main);
      line-height: 1.9;
      letter-spacing: 0.5px;
      margin: 0;
      scroll-behavior: smooth;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 悬浮胶囊导航 */
    .capsule-nav {
      position: fixed;
      top: 24px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      background: rgba(255,255,255,0.82);
      backdrop-filter: blur(16px);
      border-radius: var(--radius-pill);
      padding: 12px 32px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.06);
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: auto;
      max-width: 90%;
      transition: all 0.3s ease;
    }

    body.scrolled .capsule-nav {
      background: #FFFFFF;
      box-shadow: 0 6px 24px rgba(0,0,0,0.1);
    }

    .nav-logo {
      font-weight: 700;
      font-size: 1.3rem;
      color: var(--primary-deep);
      white-space: nowrap;
      letter-spacing: -0.3px;
    }

    .nav-links {
      display: flex;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 28px;
    }

    .nav-links a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-secondary);
      transition: color 0.2s;
      position: relative;
      padding: 4px 0;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--accent-gold);
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent-gold);
      transition: width 0.25s ease;
    }

    .nav-links a:hover::after,
    .nav-links a.active::after {
      width: 100%;
    }

    .hamburger {
      display: none;
      font-size: 1.8rem;
      background: none;
      border: none;
      color: var(--primary-deep);
      cursor: pointer;
    }

    /* 移动端导航 */
    .mobile-menu {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100vh;
      background: rgba(255,255,255,0.98);
      backdrop-filter: blur(20px);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 28px;
      font-size: 1.8rem;
      font-weight: 600;
      z-index: 999;
      transform: translateY(-100%);
      transition: transform 0.3s ease;
    }

    .mobile-menu.open {
      transform: translateY(0);
    }

    .mobile-menu a {
      color: var(--primary-deep);
    }

    .close-menu {
      position: absolute;
      top: 30px;
      right: 30px;
      font-size: 2.2rem;
      background: none;
      border: none;
      color: var(--primary-deep);
    }

    /* 板块通用 */
    section {
      padding: 100px 0;
    }

    h2 {
      font-size: 40px;
      font-weight: 700;
      letter-spacing: -0.3px;
      margin-bottom: 24px;
      color: var(--text-main);
    }

    h3 {
      font-size: 24px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .text-muted {
      color: var(--text-secondary);
      font-size: 16px;
      line-height: 1.9;
    }

    .btn-primary {
      background: var(--accent-gold);
      color: white;
      border-radius: var(--radius-pill);
      padding: 14px 36px;
      font-weight: 700;
      font-size: 18px;
      border: none;
      display: inline-block;
      transition: all 0.3s ease;
      box-shadow: var(--shadow-gold);
      text-align: center;
    }

    .btn-primary:hover {
      background: #b0882f;
      transform: translateY(-4px);
      box-shadow: 0 8px 24px rgba(200,155,60,0.4);
      color: white;
    }

    .btn-outline {
      background: transparent;
      border: 1.5px solid var(--primary-deep);
      color: var(--primary-deep);
      border-radius: var(--radius-pill);
      padding: 14px 36px;
      font-weight: 700;
      font-size: 18px;
      transition: all 0.3s ease;
      display: inline-block;
    }

    .btn-outline:hover {
      background: var(--primary-deep);
      color: white;
    }

    /* Hero */
    .hero {
      padding-top: 140px;
      padding-bottom: 100px;
      background: linear-gradient(135deg, #ffffff 0%, #f5f6f8 100%);
      position: relative;
    }

    .hero-content h1 {
      font-size: 56px;
      font-weight: 700;
      letter-spacing: -0.5px;
      line-height: 1.2;
      margin-bottom: 24px;
    }

    .hero-bg {
      position: absolute;
      right: 0;
      top: 0;
      width: 50%;
      height: 100%;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity: 0.08;
      pointer-events: none;
    }

    /* 痛点卡片 */
    .pain-card {
      background: var(--bg-light);
      border-radius: var(--radius-md);
      padding: 32px;
      border-left: 3px solid transparent;
      transition: all 0.3s ease;
    }

    .pain-card:hover {
      border-left-color: var(--accent-gold);
      transform: translateY(-2px);
      background: #fff;
      box-shadow: var(--shadow-md);
    }

    .pain-icon {
      font-size: 2.2rem;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    /* 解决方案卡片 */
    .solution-card {
      background: #fff;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      transition: all 0.3s ease;
      overflow: hidden;
    }

    .solution-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }

    .solution-img {
      height: 200px;
      object-fit: cover;
      border-radius: 20px 20px 0 0;
      transition: transform 0.4s ease;
    }

    .solution-card:hover .solution-img {
      transform: scale(1.03);
    }

    .check-list {
      list-style: none;
      padding-left: 0;
    }

    .check-list li {
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text-secondary);
    }

    .check-list i {
      color: var(--accent-gold);
    }

    /* 成果数据 */
    .stat-number {
      font-size: 48px;
      font-weight: 800;
      color: var(--accent-gold);
      line-height: 1.2;
    }

    .stat-unit {
      font-size: 20px;
      font-weight: 600;
      color: var(--text-main);
      margin-left: 4px;
    }

    .results-container {
      background: var(--bg-soft);
      border-radius: var(--radius-lg);
      padding: 60px 40px;
    }

    /* 证言 */
    .testimonial-card {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 36px;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .quote-icon {
      font-size: 2.8rem;
      color: var(--accent-gold);
      opacity: 0.2;
      position: absolute;
      top: 20px;
      left: 24px;
    }

    blockquote {
      font-style: italic;
      font-size: 18px;
      line-height: 1.9;
      margin: 20px 0;
    }

    .avatar {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      object-fit: cover;
    }

    /* FAQ */
    .accordion-item {
      background: #fff;
      border-radius: var(--radius-sm);
      margin-bottom: 8px;
    }

    .accordion-title {
      background: #fff;
      border-radius: 12px;
      padding: 0 24px;
      height: 56px;
      line-height: 56px;
      font-weight: 600;
      font-size: 18px;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border: none;
      width: 100%;
      text-align: left;
    }

    .accordion-title i {
      transition: transform 0.3s;
    }

    .accordion-content {
      background: #f5f6f8;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 24px;
      border-radius: 0 0 12px 12px;
    }

    .accordion-item.active .accordion-content {
      max-height: 300px;
      padding: 24px;
    }

    .accordion-item.active .accordion-title i {
      transform: rotate(45deg);
    }

    /* CTA */
    .cta-section {
      background: var(--primary-deep);
      color: white;
    }

    .pulse-btn {
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { box-shadow: 0 4px 16px rgba(200,155,60,0.4); }
      50% { box-shadow: 0 4px 30px rgba(200,155,60,0.7); }
      100% { box-shadow: 0 4px 16px rgba(200,155,60,0.4); }
    }

    /* Footer */
    footer {
      background: #1A1D22;
      color: #8E9299;
      padding: 60px 0 30px;
    }

    footer a:hover {
      color: var(--accent-gold);
    }

    @media (max-width: 1024px) {
      .nav-links {
        gap: 18px;
      }
      h2 {
        font-size: 34px;
      }
      .stat-number {
        font-size: 40px;
      }
    }

    @media (max-width: 640px) {
      .capsule-nav {
        width: 90%;
        left: 5%;
        transform: none;
        padding: 12px 20px;
      }
      .nav-links {
        display: none;
      }
      .hamburger {
        display: block;
      }
      section {
        padding: 60px 0;
      }
      h1 {
        font-size: 36px !important;
      }
      h2 {
        font-size: 28px;
      }
      .hero {
        padding-top: 120px;
      }
      .stat-number {
        font-size: 36px;
      }
      .btn-primary, .btn-outline {
        width: 100%;
        max-width: 280px;
        display: block;
        margin: 10px auto;
      }
      .results-container {
        padding: 40px 20px;
      }
    }