:root {
      /* 主色改为蓝绿色系 */
      --primary: #15c7b6;
      --primary-soft: rgba(21, 199, 182, 0.18);
      --primary-strong: #0ba39a;
      --accent: #0fd1f2;

      --bg: #02161f;
      --card-bg: #031e28;
      --text-main: #e5f7f7;
      --text-sub: #8fb1b8;
      --border-subtle: rgba(96, 165, 175, 0.5);

      --radius-xl: 26px;
      --radius-lg: 18px;
      --radius-md: 12px;
      --shadow-strong: 0 22px 60px rgba(2, 10, 18, 0.95);
      --transition-fast: 0.18s ease-out;
    }

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

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background:
        radial-gradient(circle at top, #073041 0, #020b12 40%, #010408 100%);
      color: var(--text-main);
      min-height: 100vh;
    }

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

    .page {
      max-width: 1120px;
      margin: 0 auto;
      padding: 20px 16px 48px;
    }

    /* 顶部品牌栏（颜色调整） */
    .topbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 26px;
    }

    .brand-left {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    
    .brand-logo img {
        width: 250px;
        height: auto;
    }

    .brand-text-main {
      font-size: 19px;
      font-weight: 650;
      letter-spacing: 0.08em;
    }

    .brand-text-sub {
      font-size: 12px;
      color: var(--text-sub);
    }

    .top-right {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 12px;
    }

    .tag-pill {
      padding: 5px 11px;
      border-radius: 999px;
      border: 1px solid rgba(46, 139, 147, 0.6);
      background: rgba(3, 30, 40, 0.94);
      color: var(--text-sub);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .tag-dot {
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: #22c55e;
      box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.24);
    }

    /* 主体卡片 */
    .shell {
      border-radius: 32px;
      padding: 22px 22px 22px;
      background:
        radial-gradient(circle at top left, rgba(21, 199, 182, 0.24), transparent 55%),
        radial-gradient(circle at bottom right, rgba(15, 209, 242, 0.24), transparent 60%),
        linear-gradient(145deg, #03151f, #020b12);
      border: 1px solid rgba(62, 148, 157, 0.7);
      box-shadow: var(--shadow-strong);
      display: grid;
      grid-template-columns: minmax(0, 3.3fr) minmax(0, 2.2fr);
      gap: 22px;
    }

    @media (max-width: 880px) { .shell { grid-template-columns: minmax(0, 1fr); } }

    /* 左：品牌展示区（保持结构，只调色） */
    .main-left { display: flex; flex-direction: column; gap: 18px; }

    .hero-kicker {
      font-size: 11px;
      letter-spacing: 0.16em;
      text-transform: uppercase;
      color: rgba(175, 225, 232, 0.92);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .hero-kicker-line {
      height: 1px;
      flex: 1;
      background: linear-gradient(90deg, rgba(77, 189, 194, 0.9), transparent);
    }

    .hero-title {
      font-size: 27px;
      font-weight: 700;
      letter-spacing: 0.03em;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .hero-highlight {
      background: linear-gradient(120deg, #15c7b6, #0fd1f2);
      -webkit-background-clip: text;
      color: transparent;
    }

    .hero-sub {
      margin-top: 4px;
      font-size: 13px;
      color: var(--text-sub);
      max-width: 460px;
      line-height: 1.6;
    }

    .metrics {
      margin-top: 10px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      font-size: 12px;
    }

    .metric-card {
      padding: 8px 10px 7px;
      border-radius: 999px;
      border: 1px solid rgba(56, 189, 182, 0.7);
      background: rgba(4, 38, 49, 0.96);
      display: flex;
      align-items: center;
      gap: 6px;
      color: var(--text-sub);
    }

    .metric-value {
      font-size: 14px;
      font-weight: 600;
      color: #e6fffe;
    }

    .cta-row {
      margin-top: 6px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .btn-primary {
      padding: 9px 16px;
      border-radius: 999px;
      border: 1px solid rgba(21, 199, 182, 0.96);
      background: radial-gradient(circle at 0 0, rgba(21, 199, 182, 0.3), rgba(3, 30, 40, 0.95));
      font-size: 13px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      transition: var(--transition-fast);
    }

    .btn-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 14px 35px rgba(1, 10, 18, 0.95);
      background: radial-gradient(circle at 0 0, rgba(21, 199, 182, 0.42), rgba(1, 18, 23, 1));
    }

    .btn-secondary {
      padding: 9px 14px;
      border-radius: 999px;
      border: 1px solid rgba(77, 189, 194, 0.65);
      background: rgba(3, 30, 40, 0.96);
      font-size: 13px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      color: var(--text-sub);
      transition: var(--transition-fast);
    }

    .btn-secondary:hover {
      border-color: rgba(163, 230, 235, 0.96);
      color: #e6fffe;
      background: radial-gradient(circle at 0 0, rgba(34, 197, 218, 0.25), rgba(3, 24, 31, 1));
    }

    .advantages {
      margin-top: 8px;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 8px;
    }

    @media (max-width: 720px) { .advantages { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
    @media (max-width: 520px) { .advantages { grid-template-columns: minmax(0, 1fr); } }

    .adv-card {
      border-radius: var(--radius-md);
      padding: 9px 9px 8px;
      background: rgba(3, 30, 40, 0.96);
      border: 1px solid rgba(77, 189, 194, 0.7);
      font-size: 11px;
      transition: var(--transition-fast);
    }

    .adv-card:hover {
      border-color: rgba(21, 199, 182, 1);
      box-shadow: 0 12px 30px rgba(0, 10, 18, 1);
      transform: translateY(-1px);
    }

    .adv-label {
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.16em;
      color: rgba(163, 230, 235, 0.9);
      margin-bottom: 3px;
    }

    .adv-title { font-size: 12px; font-weight: 600; margin-bottom: 2px; }
    .adv-desc { font-size: 11px; color: var(--text-sub); }

    /* 右：图片入口导航 */
    .main-right {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .panel-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-sub);
    }

    .panel-title {
      font-size: 13px;
      text-transform: uppercase;
      letter-spacing: 0.16em;
    }

    .panel-pill {
      padding: 3px 8px;
      border-radius: 999px;
      border: 1px solid rgba(77, 189, 194, 0.7);
      background: rgba(3, 30, 40, 0.92);
      font-size: 11px;
    }

    /* 图片入口网格 */
    .image-entry-grid {
      margin-top: 10px;
      display: grid;
      grid-template-columns: minmax(0, 1fr);
      gap: 10px;
    }

    .image-entry {
      position: relative;
      overflow: hidden;
      border-radius: 18px;
      background: rgba(3, 24, 31, 0.96);
      border: 1px solid rgba(77, 189, 194, 0.7);
      cursor: pointer;
      transition: var(--transition-fast);
    }

    .image-entry:hover {
      border-color: rgba(21, 199, 182, 1);
      box-shadow: 0 14px 34px rgba(1, 10, 18, 1);
      transform: translateY(-1px);
    }

    .image-entry img {
      width: 100%;
      display: block;
      object-fit: cover;
    }

    .image-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(0, 0, 0, 0.72), transparent 60%);
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding: 10px 11px 9px;
      gap: 3px;
    }

    .image-title {
      font-size: 13px;
      font-weight: 600;
    }

    .image-desc {
      font-size: 11px;
      color: var(--text-sub);
    }

    .image-tag {
      font-size: 10px;
      color: rgba(190, 242, 245, 0.9);
    }

    /* 底部提示 */
    .footer-bar {
      margin-top: 18px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      font-size: 11px;
      color: var(--text-sub);
    }

    .footer-pill {
      padding: 5px 10px;
      border-radius: 999px;
      border: 1px dashed rgba(77, 189, 194, 0.8);
      background: rgba(3, 30, 40, 0.96);
    }

    /* 顶部栏在手机端的适配 */
@media (max-width: 640px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .brand-left {
    width: 100%;
  }

  .brand-text-main {
    font-size: 17px;
    line-height: 1.3;
  }

  .brand-text-sub {
    font-size: 11px;
  }

  .top-right {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
  }

  .tag-pill {
    font-size: 11px;
    padding: 4px 9px;
  }
  
  .brand-left {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .top-right {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .brand-logo img {
      width: 200px;
      height: auto;
      
  }
}