/* ===== 导航栏 ===== */
    .navbar {
      position: fixed; top: 0; left: 0; right: 0; height: 58px; z-index: 100;
      background: rgba(7,7,15,0.80);
      backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
      display: flex; align-items: center; justify-content: space-between;
      padding: 0 28px; transition: box-shadow 0.2s;
    }
    .navbar.scrolled { box-shadow: 0 1px 0 rgba(255,255,255,0.04); }
    .navbar-brand-text {
      font-size: 18px; font-weight: 700; color: #eeeef8;
      text-decoration: none; font-family: KaiTi, STKaiti, serif;
      margin-right: 12px; white-space: nowrap; cursor: pointer;
    }
    .navbar-brand-text:hover { color: #fff; }
    .navbar-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; margin-right: 16px; }
    .navbar-logo { height: 30px; width: auto; flex-shrink: 0; }
    .navbar-left { display: flex; align-items: center; gap: 12px; }
    .navbar-actions { display: flex; gap: 8px; }
    /* 陪跑看板锁定态 */
    .nav-dashboard-locked { opacity: 0.45; cursor: not-allowed !important; }
    .nav-dashboard-locked:hover {
      background: transparent !important;
      border-color: rgba(255,255,255,0.18) !important;
    }
    #nav-username {
      cursor: pointer;
      transition: all 0.15s ease;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: 8px;
      padding: 0 8px 0 10px;
      height: 32px;
      background: transparent;
    }
    #nav-username:hover {
      background: rgba(255,255,255,0.07);
      border-color: rgba(255,255,255,0.25);
    }
    .nav-username-arrow {
      font-size: 16px;
      color: #00A89A;
      opacity: 0.9;
      transition: transform 0.2s ease;
      line-height: 1;
      display: inline-flex;
      align-items: center;
      margin-left: 2px;
    }
    #nav-username:hover .nav-username-arrow {
      opacity: 1;
    }
    .un-msgbox {
      background: #1a1a2e; border: 1px solid rgba(255,255,255,0.08);
      border-radius: 12px; padding: 24px 28px 20px;
      width: 360px; box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    }
    .un-title {
      font-size: 16px; font-weight: 600; color: #eeeef8;
      margin-bottom: 16px;
    }
    .un-input {
      width: 100%; padding: 10px 12px; font-size: 14px;
      background: #0f0f1a; border: 1px solid rgba(255,255,255,0.1);
      color: #eeeef8; border-radius: 8px; outline: none;
      box-sizing: border-box;
    }
    .un-input:focus { border-color: #667eea; }
    .un-input::placeholder { color: #55557a; }
    .un-btns { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }
    .un-btn {
      padding: 8px 20px; font-size: 13px; border-radius: 8px;
      cursor: pointer; border: none; font-weight: 500;
    }
    .un-cancel {
      background: rgba(255,255,255,0.06); color: #8888a8;
      border: 1px solid rgba(255,255,255,0.1);
    }
    .un-cancel:hover { background: rgba(255,255,255,0.1); color: #eeeef8; }
    .un-confirm {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: #fff;
    }
    .un-confirm:hover { opacity: 0.9; }
    .nav-dropdown {
      position: absolute; top: 100%; right: 0; z-index: 9999;
      min-width: 160px; margin-top: 6px;
      background: #1a1a2e; border: 1px solid rgba(255,255,255,0.08);
      border-radius: 10px; padding: 6px 0;
      box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    }
    .nd-item {
      padding: 10px 18px; font-size: 14px; color: #c0c0d0;
      cursor: pointer; white-space: nowrap;
    }
    .nd-item:hover { background: rgba(255,255,255,0.06); color: #eeeef8; }
    .nd-divider { height: 1px; background: rgba(255,255,255,0.06); margin: 4px 12px; }
	    .nd-logout { color: #f87171 !important; }
	    .nd-logout:hover { background: rgba(248,113,113,0.12) !important; }
    /* ===== 通用容器 ===== */
    .section-container {
      position: relative;
      z-index: 1;
      max-width: 1100px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .section-title {
      font-size: clamp(24px, 3vw, 34px);
      font-weight: 700;
      text-align: center;
      color: #eeeef8;
      margin-bottom: 48px;
      letter-spacing: -0.8px;
      line-height: 1.25;
      text-shadow: 0 2px 30px rgba(0,0,0,0.5);
    }

    
    .value-section {
      padding: 80px 0 100px;
      background:
        radial-gradient(ellipse 60% 50% at 70% 50%, rgba(102,126,234,0.04) 0%, transparent 60%),
        radial-gradient(ellipse 50% 40% at 20% 80%, rgba(168,85,247,0.03) 0%, transparent 50%),
        #070711;
      border-top: 1px solid rgba(255,255,255,0.02);
      border-bottom: 1px solid rgba(255,255,255,0.02);
      position: relative;
      overflow: hidden;
    }
    .value-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image:
        repeating-linear-gradient(90deg, rgba(255,255,255,0.012) 0px, transparent 1px, transparent 60px),
        repeating-linear-gradient(0deg, rgba(255,255,255,0.012) 0px, transparent 1px, transparent 60px);
      pointer-events: none;
    }
    .value-layout {
      display: flex;
      gap: 20px;
      max-width: 960px;
      margin: 0 auto;
      align-items: stretch;
      position: relative;
      z-index: 1;
    }
    .value-card {
      position: relative;
      padding: 36px 26px 32px;
      border-radius: 16px;
      background: rgba(255,255,255,0.03);
      border: 1px solid rgba(255,255,255,0.2);
      transition: transform 0.3s, border-color 0.3s;
      overflow: hidden;
      flex: 1;
    }
    .value-card::after {
      content: '';
      position: absolute;
      bottom: 0; left: 20%; right: 20%;
      height: 2px;
      background: linear-gradient(90deg, transparent, #667eea, transparent);
      opacity: 0.3;
      transition: opacity 0.3s;
    }
    .value-card:hover {
      transform: translateY(-3px);
      border-color: rgba(102,126,234,0.6);
      background: rgba(255,255,255,0.045);
    }
    .value-card:hover::after { opacity: 0.6; }
    .value-card-lg {
      flex: 1.4;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 44px 32px;
    }
    .value-col {
      flex: 1;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .value-col .value-card { padding: 28px 22px; }
    .v-icon-wrap {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 48px; height: 48px;
      border-radius: 14px;
      margin-bottom: 16px;
      color: white;
      box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    }
    .v-icon-data { background: linear-gradient(135deg, #667eea, #7c5cf5); }
    .v-icon-ai { background: linear-gradient(135deg, #a855f7, #d946ef); }
    .v-icon-expert { background: linear-gradient(135deg, #06b6d4, #3b82f6); }
    .value-title {
      font-size: 18px; font-weight: 700; color: #eeeef8; margin-bottom: 10px;
    }
    .value-card-lg .value-title { font-size: 20px; }
    .value-desc {
      font-size: 15px; color: #9090b0; line-height: 1.7;
    }
    .value-card-lg .value-desc { font-size: 16px; }

    /* ===== Footer ===== */
    .home-footer { padding: 28px 0; border-top: 1px solid rgba(255,255,255,0.03); background: #07070f; }
    .footer-inner { display: flex; align-items: center; justify-content: space-between; }
    .footer-brand { display: flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: #8888a8; }
    .footer-logo-img { height: 24px; width: auto; border-radius: 4px; }
    .footer-copyright { font-size: 12px; color: #555570; }

    /* ===== 响应式 ===== */
    @media (max-width: 768px) {
      .hero-content { padding: 100px 20px 40px; }
      .hero-title { font-size: 28px; }
      .hero-title .gradient-text { font-size: 32px; }
      .subtitle-pillars { flex-direction: column; gap: 6px; }
      .pillar-x { display: none; }
      .hero-search-box { flex-direction: column; }
      .btn-primary { min-width: 100%; }
      .hero-stats { flex-direction: column; gap: 16px; }
      .hero-stat { padding: 0; }
      .hero-stat-dot { display: none; }
      .hero-stat-num { font-size: 28px; }
      .value-layout { flex-direction: column; }
      .value-card-lg { flex: none; }
      .bento-grid { grid-template-columns: 1fr; }
      .bento-1, .bento-3, .bento-5 { grid-column: span 1; }
      .cta-title { font-size: 22px; }
      .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
    }