/* roulang page: index */
:root {
      --color-primary: #0B1015;
      --color-secondary: #121A21;
      --color-accent: #00FF87;
      --color-accent-hover: #00DF76;
      --color-warning: #FF5E3A;
      --color-bg-light: #F4F7F9;
      --color-card-bg: #FFFFFF;
      --color-text-main: #0E1726;
      --color-text-muted: #4B5668;
      --color-text-dim: #8A94A6;
      --color-border: rgba(14, 23, 38, 0.08);
      --radius-sm: 4px;
      --radius-md: 6px;
      --radius-full: 9999px;
      --shadow-base: 0 4px 16px rgba(0, 0, 0, 0.04);
      --shadow-hover: 0 12px 28px -4px rgba(0, 255, 135, 0.16), 0 4px 12px -2px rgba(0, 0, 0, 0.08);
      --transition: all 0.28s ease-in-out;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", sans-serif;
      background-color: var(--color-bg-light);
      color: var(--color-text-main);
      line-height: 1.65;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover, a:focus {
      color: var(--color-accent);
      text-decoration: none;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-sm);
    }

    /* 顶部服务栏 */
    .top-bar-mini {
      background: #06090D;
      color: var(--color-text-dim);
      font-size: 13px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .status-indicator {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--color-accent);
      font-weight: 500;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background-color: var(--color-accent);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--color-accent);
      animation: pulse-dot 2s infinite;
    }
    @keyframes pulse-dot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
    }

    /* 悬浮胶囊主导航 */
    .header-capsule-wrapper {
      position: sticky;
      top: 14px;
      z-index: 1000;
      padding: 0 16px;
    }
    .capsule-navbar {
      max-width: 1200px;
      margin: 0 auto;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid rgba(14, 23, 38, 0.1);
      border-radius: var(--radius-full);
      padding: 10px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
      transition: var(--transition);
    }
    .brand-logo {
      font-size: 19px;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--color-primary);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .brand-logo-badge {
      background: var(--color-primary);
      color: var(--color-accent);
      padding: 2px 7px;
      border-radius: var(--radius-sm);
      font-size: 11px;
      font-family: monospace;
      font-weight: bold;
      border: 1px solid var(--color-accent);
    }
    .nav-links {
      display: flex;
      list-style: none;
      margin: 0;
      gap: 22px;
      align-items: center;
    }
    .nav-links a {
      color: var(--color-text-main);
      font-size: 14px;
      font-weight: 600;
      padding: 6px 4px;
      position: relative;
    }
    .nav-links a.active, .nav-links a:hover {
      color: #058A46;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-nav-primary {
      background: var(--color-primary);
      color: var(--color-accent) !important;
      font-size: 13px;
      font-weight: 700;
      padding: 8px 18px;
      border-radius: var(--radius-full);
      border: 1px solid rgba(0, 255, 135, 0.4);
      display: inline-block;
    }
    .btn-nav-primary:hover {
      background: #000;
      border-color: var(--color-accent);
      box-shadow: 0 0 12px rgba(0, 255, 135, 0.3);
    }

    /* 移动端汉堡菜单控制 */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 22px;
      cursor: pointer;
      color: var(--color-primary);
    }

    /* Hero 板块：代码示意与开发者控制台 */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, #15222E 0%, #0B1015 70%);
      color: #FFFFFF;
      padding: 80px 0 90px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      background-image: linear-gradient(rgba(11, 16, 21, 0.88), rgba(11, 16, 21, 0.94)), url('/assets/images/408384cdcc0c964b.jpg');
      background-size: cover;
      background-position: center;
    }
    .hero-badge-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 5px 14px;
      border-radius: var(--radius-full);
      background: rgba(0, 255, 135, 0.1);
      border: 1px solid rgba(0, 255, 135, 0.3);
      color: var(--color-accent);
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 22px;
    }
    .hero-title {
      font-size: 42px;
      line-height: 1.22;
      font-weight: 900;
      color: #FFFFFF;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-desc {
      color: #B5C1CF;
      font-size: 16px;
      line-height: 1.8;
      margin-bottom: 34px;
      max-width: 620px;
    }
    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 30px;
    }
    .btn-main-action {
      background: var(--color-accent);
      color: var(--color-primary) !important;
      font-weight: 800;
      font-size: 15px;
      padding: 13px 30px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: 1px solid var(--color-accent);
    }
    .btn-main-action:hover {
      background: var(--color-accent-hover);
      box-shadow: 0 0 20px rgba(0, 255, 135, 0.4);
      transform: translateY(-2px);
    }
    .btn-outline-action {
      background: transparent;
      color: #FFFFFF !important;
      font-weight: 600;
      font-size: 15px;
      padding: 13px 26px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.25);
    }
    .btn-outline-action:hover {
      border-color: #FFFFFF;
      background: rgba(255, 255, 255, 0.05);
    }
    .code-terminal-card {
      background: #080D11;
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
      overflow: hidden;
    }
    .terminal-header {
      background: #111820;
      padding: 10px 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .terminal-dots {
      display: flex;
      gap: 6px;
    }
    .terminal-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    .terminal-dot.red { background: #FF5F56; }
    .terminal-dot.yellow { background: #FFBD2E; }
    .terminal-dot.green { background: #27C93F; }
    .terminal-body {
      padding: 18px 20px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 13px;
      line-height: 1.7;
      color: #D3DDE8;
      overflow-x: auto;
    }
    .t-accent { color: var(--color-accent); font-weight: bold; }
    .t-dim { color: #5D6D7E; }
    .t-orange { color: #FF9F43; }

    /* 通用板块样式与网格系统 */
    .biz-section {
      padding: 85px 0;
      position: relative;
    }
    .biz-section.alt-bg {
      background-color: #FFFFFF;
    }
    .biz-section.dark-mode {
      background-color: #0B1015;
      color: #FFFFFF;
    }
    .section-head {
      margin-bottom: 50px;
    }
    .section-head.center {
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: #058A46;
      background: rgba(0, 255, 135, 0.12);
      padding: 4px 12px;
      border-radius: var(--radius-full);
      display: inline-block;
      margin-bottom: 12px;
    }
    .dark-mode .section-tag {
      color: var(--color-accent);
      background: rgba(0, 255, 135, 0.15);
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--color-text-main);
      line-height: 1.3;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .dark-mode .section-title {
      color: #FFFFFF;
    }
    .section-subtitle {
      font-size: 15px;
      color: var(--color-text-muted);
      line-height: 1.75;
    }
    .dark-mode .section-subtitle {
      color: #9EAFBE;
    }

    /* 样式卡片集合 */
    .feature-card {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 30px 26px;
      height: 100%;
      transition: var(--transition);
      position: relative;
    }
    .feature-card:hover {
      border-color: rgba(0, 255, 135, 0.6);
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .feature-icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: #0B1015;
      color: var(--color-accent);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }
    .feature-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--color-text-main);
    }
    .feature-text {
      color: var(--color-text-muted);
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* 快捷入口与即刻检索区 */
    .portal-search-bar {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--color-border);
      padding: 16px 20px;
      box-shadow: var(--shadow-base);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      margin-top: -36px;
      position: relative;
      z-index: 10;
    }
    .search-filter-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      font-weight: 600;
      color: var(--color-text-muted);
    }
    .quick-chip {
      background: #EEF3F7;
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 600;
      color: var(--color-text-main);
      display: inline-block;
    }
    .quick-chip:hover, .quick-chip.active {
      background: var(--color-primary);
      color: var(--color-accent);
    }

    /* 架构拓扑微展示 */
    .topo-step-box {
      background: #111A22;
      border: 1px solid rgba(255, 255, 255, 0.09);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .topo-step-num {
      font-size: 12px;
      font-family: monospace;
      color: var(--color-accent);
      font-weight: bold;
      margin-bottom: 8px;
    }
    .topo-step-title {
      color: #FFFFFF;
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .topo-step-desc {
      color: #8C9CAE;
      font-size: 13px;
      line-height: 1.6;
    }

    /* 产品卡片对比 */
    .plan-card {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 34px 28px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      position: relative;
      height: 100%;
    }
    .plan-card.featured {
      border: 2px solid var(--color-primary);
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08);
    }
    .plan-card.featured::before {
      content: "研发优选架构";
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--color-primary);
      color: var(--color-accent);
      font-size: 11px;
      font-weight: 800;
      padding: 3px 10px;
      border-radius: var(--radius-full);
      border: 1px solid var(--color-accent);
    }
    .plan-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-5px);
    }
    .plan-badge-tag {
      font-size: 13px;
      font-weight: 700;
      color: var(--color-text-muted);
      margin-bottom: 8px;
    }
    .plan-name {
      font-size: 22px;
      font-weight: 800;
      color: var(--color-text-main);
      margin-bottom: 12px;
    }
    .plan-price-wrap {
      padding: 16px 0;
      border-bottom: 1px solid rgba(14, 23, 38, 0.06);
      margin-bottom: 20px;
    }
    .plan-price {
      font-size: 32px;
      font-weight: 900;
      color: var(--color-primary);
    }
    .plan-spec-item {
      display: flex;
      justify-content: space-between;
      padding: 8px 0;
      font-size: 14px;
      border-bottom: 1px dashed rgba(14, 23, 38, 0.06);
    }
    .spec-label {
      color: var(--color-text-dim);
    }
    .spec-value {
      font-weight: 600;
      color: var(--color-text-main);
    }

    /* 性能指标条 */
    .metric-item {
      text-align: center;
      padding: 20px 10px;
    }
    .metric-number {
      font-size: 42px;
      font-weight: 900;
      color: var(--color-primary);
      line-height: 1.1;
      margin-bottom: 6px;
      font-family: ui-monospace, SFMono-Regular, monospace;
    }
    .dark-mode .metric-number {
      color: var(--color-accent);
    }
    .metric-label {
      font-size: 14px;
      font-weight: 700;
      color: var(--color-text-muted);
    }
    .dark-mode .metric-label {
      color: #A3B5C7;
    }

    /* 排行榜单与热度展示 */
    .rank-list-wrapper {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .rank-item-row {
      display: flex;
      align-items: center;
      padding: 18px 24px;
      border-bottom: 1px solid rgba(14, 23, 38, 0.06);
      gap: 16px;
    }
    .rank-item-row:last-child {
      border-bottom: none;
    }
    .rank-badge {
      width: 28px;
      height: 28px;
      border-radius: var(--radius-sm);
      background: #EEF3F7;
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 13px;
    }
    .rank-badge.top-1 { background: #FF5E3A; color: #fff; }
    .rank-badge.top-2 { background: #FF9F43; color: #fff; }
    .rank-badge.top-3 { background: #00FF87; color: #000; }

    /* 业务实战案例卡 */
    .case-card {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .case-card-body {
      padding: 24px;
      flex-grow: 1;
    }
    .case-game-type {
      font-size: 12px;
      font-weight: 700;
      color: #058A46;
      background: rgba(0, 255, 135, 0.12);
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      display: inline-block;
      margin-bottom: 10px;
    }
    .case-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .case-desc {
      font-size: 13px;
      color: var(--color-text-muted);
      line-height: 1.65;
    }

    /* 流程图步进条 */
    .step-card {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
      height: 100%;
    }
    .step-num-icon {
      font-size: 20px;
      font-weight: 900;
      color: var(--color-accent);
      background: var(--color-primary);
      width: 42px;
      height: 42px;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }

    /* 手风琴常见疑问组件 */
    .custom-accordion {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .accordion-item-wrap {
      border-bottom: 1px solid var(--color-border);
    }
    .accordion-item-wrap:last-child {
      border-bottom: none;
    }
    .accordion-question {
      padding: 20px 24px;
      font-weight: 700;
      font-size: 16px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FFFFFF;
      user-select: none;
    }
    .accordion-question:hover {
      background: #F9FBFC;
      color: #058A46;
    }
    .accordion-answer {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--color-text-muted);
      line-height: 1.8;
      display: none;
    }
    .accordion-answer.active {
      display: block;
    }

    /* 转化表单与意向登记 */
    .conversion-form-box {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 38px 34px;
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.05);
    }
    .form-group-item {
      margin-bottom: 18px;
    }
    .form-label {
      font-weight: 700;
      font-size: 14px;
      color: var(--color-text-main);
      margin-bottom: 6px;
      display: block;
    }
    .form-input-text, .form-select {
      width: 100%;
      height: 44px;
      border: 1px solid rgba(14, 23, 38, 0.15);
      border-radius: var(--radius-sm);
      padding: 0 14px;
      font-size: 14px;
      background: #FAFBFD;
      transition: var(--transition);
    }
    .form-input-text:focus, .form-select:focus {
      outline: none;
      border-color: #058A46;
      background: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(0, 255, 135, 0.2);
    }
    .btn-submit-action {
      background: var(--color-primary);
      color: var(--color-accent);
      font-size: 16px;
      font-weight: 800;
      width: 100%;
      height: 48px;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .btn-submit-action:hover {
      background: #000;
      box-shadow: 0 8px 20px rgba(0, 255, 135, 0.35);
      color: #00FF87;
    }

    /* 资讯列表卡片 */
    .news-card-item {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }
    .news-card-item:hover {
      border-color: rgba(0, 255, 135, 0.5);
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
    .news-date-meta {
      font-size: 12px;
      color: var(--color-text-dim);
      font-family: monospace;
      margin-bottom: 8px;
    }
    .news-card-title {
      font-size: 17px;
      font-weight: 700;
      line-height: 1.45;
      color: var(--color-text-main);
      margin-bottom: 12px;
    }
    .news-card-summary {
      font-size: 13px;
      color: var(--color-text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }

    /* 评价反馈墙 */
    .review-bubble {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 28px;
      height: 100%;
      position: relative;
    }
    .review-rating-stars {
      color: #FF9F43;
      font-size: 14px;
      margin-bottom: 14px;
      letter-spacing: 2px;
    }
    .review-quote {
      font-size: 14px;
      color: var(--color-text-muted);
      line-height: 1.75;
      margin-bottom: 20px;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .reviewer-avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #EEF3F7;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 14px;
      color: var(--color-primary);
      border: 1px solid rgba(14, 23, 38, 0.1);
    }
    .reviewer-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 2px;
    }
    .reviewer-title {
      font-size: 12px;
      color: var(--color-text-dim);
    }

    /* 保障徽章栏 */
    .guarantee-bar {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-base);
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .guarantee-icon {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      background: rgba(0, 255, 135, 0.12);
      color: #058A46;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      flex-shrink: 0;
    }

    /* 全局统一页脚 */
    .site-global-footer {
      background: #080D11;
      color: #9EAFBE;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 70px 0 35px;
      font-size: 14px;
    }
    .footer-brand-title {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-desc-text {
      font-size: 13px;
      line-height: 1.8;
      color: #798A9C;
      margin-bottom: 20px;
    }
    .footer-column-title {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
      letter-spacing: 0.5px;
    }
    .footer-links-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list a {
      color: #8C9DAF;
      font-size: 13px;
    }
    .footer-links-list a:hover {
      color: var(--color-accent);
    }
    .footer-bottom-bar {
      margin-top: 50px;
      padding-top: 25px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: 13px;
      color: #5D6D7E;
    }

    /* 响应式断点适配 */
    @media (max-width: 1023px) {
      .capsule-navbar {
        border-radius: var(--radius-sm);
        padding: 12px 18px;
      }
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #FFFFFF;
        padding: 20px;
        border-radius: var(--radius-md);
        margin-top: 10px;
        box-shadow: 0 16px 30px rgba(0, 0, 0, 0.15);
        border: 1px solid rgba(14, 23, 38, 0.1);
        align-items: flex-start;
      }
      .nav-links.mobile-show {
        display: flex;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 32px;
      }
      .metric-number {
        font-size: 34px;
      }
    }
    @media (max-width: 639px) {
      .hero-section {
        padding: 50px 0 60px;
      }
      .hero-title {
        font-size: 26px;
      }
      .portal-search-bar {
        margin-top: 16px;
      }
      .conversion-form-box {
        padding: 24px 18px;
      }
      .footer-bottom-bar {
        flex-direction: column;
        text-align: center;
      }
    }