/* roulang page: index */
:root {
      --primary-color: #0A5C36;
      --primary-dark: #063d23;
      --accent-color: #00D285;
      --accent-gold: #FF9F1C;
      --bg-light: #F4F6F8;
      --card-white: #FFFFFF;
      --dark-abyss: #081C15;
      --dark-surface: #0D281E;
      --text-main: #121826;
      --text-muted: #374151;
      --text-sub: #6B7280;
      --border-color: #E5E9F0;
      --card-shadow: 0 4px 20px rgba(10, 92, 54, 0.04);
      --card-shadow-hover: 0 14px 30px rgba(10, 92, 54, 0.12);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-pill: 50rem;
    }

    /* Base Reset */
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.68;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* Top Strip */
    .top-info-strip {
      background-color: #05140f;
      color: #9cb1a5;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .status-pulse {
      display: inline-block;
      width: 8px;
      height: 8px;
      background-color: var(--accent-color);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent-color);
      margin-right: 6px;
    }

    /* Main Navigation */
    .site-header {
      background-color: var(--dark-abyss);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      z-index: 1030;
    }
    .navbar-brand-custom {
      font-size: 1.35rem;
      font-weight: 700;
      letter-spacing: -0.5px;
      color: #FFFFFF !important;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .brand-icon {
      background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
      color: #FFFFFF;
      width: 36px;
      height: 36px;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }
    .nav-link-custom {
      color: #d1d9d4 !important;
      font-size: 0.95rem;
      font-weight: 500;
      padding: 0.5rem 0.9rem !important;
      border-radius: var(--radius-sm);
    }
    .nav-link-custom:hover {
      color: var(--accent-color) !important;
      background: rgba(255, 255, 255, 0.04);
    }
    .btn-gold-cta {
      background: linear-gradient(135deg, #FFB338, #FF9F1C);
      color: #081C15;
      font-weight: 600;
      font-size: 0.9rem;
      border: none;
      padding: 0.55rem 1.25rem;
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 14px rgba(255, 159, 28, 0.28);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-gold-cta:hover {
      background: linear-gradient(135deg, #FFC05A, #FFAF36);
      color: #000000;
      transform: translateY(-1px);
    }

    /* Hero Section: 会员俱乐部黑金质感 + 等级徽章 */
    .hero-vip-section {
      background: linear-gradient(180deg, var(--dark-abyss) 0%, #0d2a1f 100%), url('/assets/images/179ec84e22dc32b6.jpg') center/cover no-repeat;
      background-blend-mode: overlay;
      color: #FFFFFF;
      padding: 85px 0 100px;
      position: relative;
    }
    .hero-badge-pill {
      background: rgba(255, 159, 28, 0.12);
      border: 1px solid rgba(255, 159, 28, 0.4);
      color: #FFC05A;
      font-size: 0.85rem;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: var(--radius-pill);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .hero-title {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -0.02em;
      margin: 20px 0;
    }
    .hero-title span {
      background: linear-gradient(90deg, #FFFFFF, var(--accent-color));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.05rem;
      color: #c4d4cc;
      line-height: 1.75;
      max-width: 680px;
      margin-bottom: 30px;
    }
    .vip-tier-card {
      background: rgba(13, 40, 30, 0.85);
      border: 1px solid rgba(255, 215, 0, 0.25);
      backdrop-filter: blur(12px);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.35);
    }
    .vip-tier-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: var(--radius-pill);
      background: linear-gradient(90deg, #d4af37, #f3e5ab);
      color: #1a1600;
      font-weight: 700;
      font-size: 0.75rem;
      text-transform: uppercase;
    }

    /* Coupon Wall Component */
    .coupon-card {
      background: #FFFFFF;
      border: 1px dashed #d1ded6;
      border-radius: var(--radius-md);
      position: relative;
      overflow: hidden;
      box-shadow: var(--card-shadow);
      transition: all 0.25s ease;
    }
    .coupon-card:hover {
      box-shadow: var(--card-shadow-hover);
      transform: translateY(-4px);
    }
    .coupon-left {
      background: linear-gradient(135deg, var(--primary-color), #147949);
      color: #FFFFFF;
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      border-right: 2px dashed #b7d6c5;
    }
    .coupon-val {
      font-size: 2.2rem;
      font-weight: 800;
      line-height: 1;
    }
    .coupon-right {
      padding: 20px 24px;
    }

    /* Sections Shared */
    .section-padding {
      padding: 80px 0;
    }
    .section-header {
      margin-bottom: 50px;
    }
    .section-eyebrow {
      color: var(--primary-color);
      font-weight: 700;
      font-size: 0.85rem;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 10px;
      display: block;
    }
    .section-title {
      font-size: 2.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.01em;
    }
    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 760px;
      line-height: 1.7;
    }

    /* Content Cards */
    .service-card {
      background: var(--card-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--card-shadow);
      transition: all 0.3s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--card-shadow-hover);
      border-color: #bee2cf;
    }
    .service-icon-wrap {
      width: 54px;
      height: 54px;
      border-radius: 12px;
      background: rgba(10, 92, 54, 0.08);
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 22px;
    }
    .service-tag {
      font-size: 0.75rem;
      font-weight: 600;
      padding: 3px 10px;
      border-radius: var(--radius-pill);
      background: #eef6f1;
      color: var(--primary-color);
      display: inline-block;
      margin-top: auto;
      align-self: flex-start;
    }

    /* Code Terminal Display */
    .code-terminal {
      background: #061510;
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 20px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 0.85rem;
      color: #9ee5be;
      overflow-x: auto;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    }
    .code-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding-bottom: 12px;
      margin-bottom: 14px;
      font-size: 0.75rem;
      color: #638575;
    }
    .terminal-dots span {
      display: inline-block;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      margin-right: 6px;
    }
    .dot-red { background: #ff5f56; }
    .dot-yellow { background: #ffbd2e; }
    .dot-green { background: #27c93f; }

    /* Dark Architecture Section */
    .dark-section-tech {
      background: var(--dark-abyss);
      color: #FFFFFF;
      position: relative;
    }
    .dark-section-tech .section-title {
      color: #FFFFFF;
    }
    .dark-section-tech .section-subtitle {
      color: #a4bab0;
    }
    .pipeline-step-box {
      background: var(--dark-surface);
      border: 1px solid rgba(255, 255, 255, 0.07);
      border-radius: var(--radius-md);
      padding: 25px;
      transition: all 0.3s;
      height: 100%;
    }
    .pipeline-step-box:hover {
      border-color: var(--accent-color);
      transform: translateY(-4px);
    }
    .step-number {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--accent-color);
      line-height: 1;
      margin-bottom: 12px;
    }

    /* Comparison Table */
    .custom-compare-table {
      width: 100%;
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      border-collapse: separate;
      border-spacing: 0;
    }
    .custom-compare-table th, .custom-compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.925rem;
    }
    .custom-compare-table thead th {
      background: #eef3f0;
      color: var(--text-main);
      font-weight: 700;
      border-bottom: 2px solid #d4dfd9;
    }
    .custom-compare-table .col-highlight {
      background: rgba(0, 210, 133, 0.05);
      font-weight: 600;
      color: var(--primary-color);
    }

    /* Accordion FAQ */
    .faq-accordion .accordion-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md) !important;
      margin-bottom: 16px;
      background: #FFFFFF;
      overflow: hidden;
    }
    .faq-accordion .accordion-button {
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      padding: 20px 24px;
      background: #FFFFFF;
      box-shadow: none !important;
    }
    .faq-accordion .accordion-button:not(.collapsed) {
      background: #f7faf8;
      color: var(--primary-color);
    }
    .faq-accordion .accordion-body {
      padding: 10px 24px 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    /* Roadmap Timeline */
    .roadmap-badge {
      display: inline-block;
      padding: 4px 10px;
      font-size: 0.75rem;
      font-weight: 600;
      border-radius: 4px;
    }
    .badge-live { background: #d7fae9; color: #077943; }
    .badge-wip { background: #fff3cd; color: #856404; }
    .badge-plan { background: #e2e3e5; color: #383d41; }

    /* Footer */
    .site-footer {
      background-color: #05140f;
      color: #92a49b;
      font-size: 0.9rem;
      padding-top: 70px;
      padding-bottom: 90px; /* Space for bottom floating bar */
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-title {
      color: #FFFFFF;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-links li {
      margin-bottom: 10px;
      list-style: none;
    }
    .footer-links a:hover {
      color: var(--accent-color);
    }

    /* Floating Bottom Conversion Bar */
    .sticky-bottom-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(8, 28, 21, 0.95);
      border-top: 1px solid rgba(0, 210, 133, 0.35);
      backdrop-filter: blur(10px);
      z-index: 1020;
      padding: 14px 0;
      box-shadow: 0 -5px 25px rgba(0, 0, 0, 0.35);
    }

    /* Responsive */
    @media (max-width: 991.98px) {
      .hero-title { font-size: 2.2rem; }
      .section-title { font-size: 1.8rem; }
      .coupon-left { border-right: none; border-bottom: 2px dashed #b7d6c5; }
    }
    @media (max-width: 767.98px) {
      .hero-vip-section { padding: 50px 0 70px; }
      .hero-title { font-size: 1.8rem; }
      .sticky-bottom-bar { text-align: center; }
      .sticky-bottom-bar .btn { width: 100%; margin-top: 8px; }
    }