/* roulang page: index */
:root {
      --bg-base: #0b0e14;
      --bg-card: #131822;
      --bg-alt: #171d2b;
      --accent-mint: #00f090;
      --accent-cyan: #00b4d8;
      --accent-coral: #ff4757;
      --text-main: #f1f5f9;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-glow: rgba(0, 240, 144, 0.35);
      --font-code: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
      --radius: 6px;
      --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.45);
      --shadow-mint: 0 0 16px rgba(0, 240, 144, 0.25);
    }

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

    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
      font-size: 15px;
    }

    a {
      color: var(--accent-mint);
      text-decoration: none;
      transition: all 0.25s ease;
    }
    a:hover, a:focus {
      color: #38ef7d;
      text-decoration: none;
    }

    /* 顶部双行导航 */
    .utility-bar {
      background: #070a0e;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 12px;
      padding: 6px 0;
      color: var(--text-muted);
    }
    .utility-bar .pulse-dot {
      display: inline-block;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--accent-mint);
      box-shadow: 0 0 8px var(--accent-mint);
      margin-right: 6px;
      vertical-align: middle;
    }

    .main-nav-bar {
      background: rgba(11, 14, 20, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-subtle);
      position: sticky;
      top: 0;
      z-index: 1000;
      padding: 14px 0;
    }
    .brand-logo {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
      letter-spacing: -0.02em;
    }
    .brand-logo svg {
      width: 24px;
      height: 24px;
      fill: var(--accent-mint);
    }
    .nav-links {
      display: flex;
      gap: 22px;
      list-style: none;
      margin: 0;
      align-items: center;
    }
    .nav-links a {
      color: var(--text-muted);
      font-size: 14px;
      font-weight: 500;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--accent-mint);
    }

    /* 导航 CTA 按钮 */
    .btn-mint {
      background: var(--accent-mint);
      color: #070a0e !important;
      font-weight: 700;
      padding: 8px 18px;
      border-radius: var(--radius);
      display: inline-block;
      border: 1px solid var(--accent-mint);
      box-shadow: var(--shadow-mint);
      font-size: 14px;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-mint:hover {
      background: #20ff9f;
      transform: translateY(-1px);
    }
    .btn-outline {
      border: 1px solid var(--border-subtle);
      background: rgba(255, 255, 255, 0.04);
      color: var(--text-main) !important;
      padding: 8px 18px;
      border-radius: var(--radius);
      display: inline-block;
      font-weight: 600;
      font-size: 14px;
      transition: all 0.2s ease;
    }
    .btn-outline:hover {
      border-color: var(--accent-cyan);
      background: rgba(0, 180, 216, 0.1);
    }

    /* Hero 下方 Pill 独立分类条 */
    .pill-nav-container {
      background: #0d121c;
      border-bottom: 1px solid var(--border-subtle);
      position: sticky;
      top: 61px;
      z-index: 990;
      padding: 10px 0;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    }
    .pill-track {
      display: flex;
      gap: 10px;
      overflow-x: auto;
      white-space: nowrap;
      scrollbar-width: none;
      -ms-overflow-style: none;
      padding: 2px 0;
    }
    .pill-track::-webkit-scrollbar {
      display: none;
    }
    .pill-item {
      padding: 5px 16px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-subtle);
      border-radius: 50px;
      font-size: 13px;
      color: var(--text-muted);
      transition: all 0.2s ease;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .pill-item:hover, .pill-item.active {
      background: rgba(0, 240, 144, 0.12);
      border-color: var(--accent-mint);
      color: var(--accent-mint);
      box-shadow: 0 0 10px rgba(0, 240, 144, 0.2);
    }

    /* 通用板块外框排版 */
    .sec-block {
      padding: 88px 0;
      position: relative;
    }
    .sec-block.alt-bg {
      background-color: var(--bg-alt);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }
    .sec-header {
      margin-bottom: 48px;
    }
    .sec-tag {
      font-family: var(--font-code);
      font-size: 12px;
      color: var(--accent-mint);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      margin-bottom: 8px;
      display: inline-block;
    }
    .sec-title {
      font-size: 30px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.02em;
      margin-bottom: 14px;
    }
    .sec-desc {
      color: var(--text-muted);
      max-width: 780px;
      font-size: 15px;
      line-height: 1.7;
    }

    /* 卡片体系 */
    .tactical-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 26px;
      height: 100%;
      position: relative;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .tactical-card:hover {
      border-color: var(--border-glow);
      transform: translateY(-3px);
      box-shadow: var(--shadow-subtle);
    }
    .card-code {
      font-family: var(--font-code);
      font-size: 12px;
      color: var(--text-dim);
      margin-bottom: 12px;
      display: block;
    }
    .card-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .card-text {
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.65;
      flex-grow: 1;
    }
    .card-footer-meta {
      margin-top: 18px;
      padding-top: 14px;
      border-top: 1px dashed var(--border-subtle);
      font-size: 12px;
      font-family: var(--font-code);
      color: var(--accent-cyan);
    }

    /* Hero Section：新品发布与倒计时环 */
    .hero-banner {
      background: linear-gradient(180deg, rgba(11, 14, 20, 0.85) 0%, rgba(11, 14, 20, 0.96) 100%), url('/assets/images/551fb7668462b0fb.jpg') center/cover no-repeat;
      padding: 96px 0 72px 0;
      border-bottom: 1px solid var(--border-subtle);
      position: relative;
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.03em;
      margin-bottom: 20px;
      color: #ffffff;
    }
    .hero-lead {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 28px;
      max-width: 640px;
    }
    .countdown-ring-box {
      background: rgba(19, 24, 34, 0.85);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
      text-align: center;
    }
    .ring-val {
      font-size: 38px;
      font-family: var(--font-code);
      font-weight: 800;
      color: var(--accent-mint);
      line-height: 1;
    }
    .ring-sub {
      font-size: 13px;
      color: var(--text-dim);
      margin-top: 4px;
    }

    /* 架构区参数展示 */
    .arch-spec-badge {
      display: inline-block;
      padding: 4px 10px;
      background: rgba(0, 180, 216, 0.15);
      color: var(--accent-cyan);
      border-radius: 4px;
      font-family: var(--font-code);
      font-size: 12px;
      margin-right: 8px;
      margin-bottom: 6px;
    }

    /* 实战案例对比条 */
    .case-card {
      background: var(--bg-card);
      border-left: 3px solid var(--accent-mint);
      border-radius: 0 var(--radius) var(--radius) 0;
      padding: 20px 24px;
      margin-bottom: 16px;
      border-top: 1px solid var(--border-subtle);
      border-right: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }

    /* 数据指标条 */
    .metric-value {
      font-size: 40px;
      font-weight: 800;
      font-family: var(--font-code);
      color: var(--accent-mint);
      line-height: 1.1;
      margin-bottom: 4px;
    }

    /* 到店/联调流程步骤条 */
    .step-node {
      position: relative;
      padding: 20px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      height: 100%;
    }
    .step-idx {
      font-size: 26px;
      font-weight: 800;
      color: var(--accent-mint);
      font-family: var(--font-code);
      opacity: 0.8;
      margin-bottom: 8px;
    }

    /* 口碑短视频/片段墙卡片 */
    .video-quote-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 20px;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .quote-badge {
      display: inline-block;
      font-size: 11px;
      padding: 2px 8px;
      background: rgba(255, 71, 87, 0.15);
      color: var(--accent-coral);
      border-radius: 4px;
      margin-bottom: 12px;
      align-self: flex-start;
    }

    /* 预约申请表单 */
    .form-dark input, .form-dark select, .form-dark textarea {
      background: #0d121c !important;
      border: 1px solid var(--border-subtle) !important;
      color: var(--text-main) !important;
      border-radius: var(--radius) !important;
      padding: 12px !important;
      margin-bottom: 16px !important;
      box-shadow: none !important;
      font-size: 14px;
    }
    .form-dark input:focus, .form-dark select:focus, .form-dark textarea:focus {
      border-color: var(--accent-mint) !important;
      box-shadow: 0 0 8px rgba(0, 240, 144, 0.3) !important;
    }
    .form-dark label {
      color: var(--text-muted);
      font-size: 13px;
      margin-bottom: 6px;
      display: block;
    }

    /* 页脚设计 */
    .site-footer {
      background: #070a0e;
      border-top: 1px solid var(--border-subtle);
      padding: 64px 0 24px 0;
      color: var(--text-muted);
      font-size: 13px;
    }
    .footer-col-title {
      color: var(--text-main);
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--accent-mint);
    }
    .footer-bottom {
      margin-top: 48px;
      padding-top: 24px;
      border-top: 1px solid var(--border-subtle);
      text-align: center;
      color: var(--text-dim);
      font-size: 12px;
    }

    /* 响应式调整 */
    @media screen and (max-width: 768px) {
      .hero-h1 {
        font-size: 28px;
      }
      .sec-block {
        padding: 54px 0;
      }
      .sec-title {
        font-size: 24px;
      }
      .metric-value {
        font-size: 32px;
      }
      .nav-links {
        display: none;
      }
      .countdown-ring-box {
        margin-top: 24px;
      }
    }