/* 龙猫云 totorocloud.cam 全球网络实验室 (Ocean Abyss & Subsea Radar) */
:root {
  --ocean-abyss: #070F1E;
  --ocean-card: #0D1B2A;
  --ocean-border: rgba(56, 189, 248, 0.28);
  --cyan-bright: #38BDF8;
  --teal-accent: #2DD4BF;
  --ocean-grad: linear-gradient(135deg, #0284C7 0%, #0369A1 50%, #0C4A6E 100%);
  --cyan-grad: linear-gradient(135deg, #38BDF8 0%, #2DD4BF 100%);
  --text-pure: #FFFFFF;
  --text-muted: #94A3B8;
  --text-cyan: #BAE6FD;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--ocean-abyss); color: var(--text-cyan); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", sans-serif; line-height: 1.68; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Subsea Nav */
.ocean-nav { position: sticky; top: 0; z-index: 1000; backdrop-filter: blur(18px); background: rgba(7, 15, 30, 0.94); border-bottom: 1px solid var(--ocean-border); height: 72px; display: flex; align-items: center; }
.ocean-nav-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.ocean-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: #FFF; font-size: 20px; font-weight: 900; }
.ocean-brand img { width: 40px; height: 40px; border-radius: 8px; filter: drop-shadow(0 0 10px rgba(56,189,248,0.5)); }
.ocean-brand span { color: var(--cyan-bright); }
.cable-badge { font-size: 11px; background: rgba(45,212,191,0.12); border: 1px solid var(--teal-accent); color: var(--teal-accent); padding: 4px 10px; border-radius: 4px; font-family: monospace; }
.ocean-links { display: flex; gap: 24px; list-style: none; }
.ocean-links a { color: var(--text-muted); text-decoration: none; font-size: 14px; font-weight: 600; transition: color 0.2s; }
.ocean-links a:hover, .ocean-links a.active { color: var(--cyan-bright); }
.btn-ocean { display: inline-flex; align-items: center; gap: 8px; padding: 10px 22px; border-radius: 6px; font-weight: 700; text-decoration: none; cursor: pointer; border: none; font-size: 14px; transition: all 0.25s; }
.btn-ocean-cyan { background: var(--cyan-grad); color: #070F1E; font-weight: 800; box-shadow: 0 4px 16px rgba(56,189,248,0.35); }
.btn-ocean-cyan:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(56,189,248,0.6); }

/* Topology Hero */
.topology-hero { padding: 60px 0 50px; text-align: center; }
.hero-cable-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--cyan-bright); font-family: monospace; font-size: 13px; font-weight: 700; background: rgba(56,189,248,0.08); border: 1px solid var(--ocean-border); padding: 5px 16px; border-radius: 20px; margin-bottom: 20px; }
.topology-hero h1 { font-size: 46px; font-weight: 900; color: #FFF; line-height: 1.25; margin-bottom: 22px; letter-spacing: -0.5px; }
.topology-hero h1 span { background: var(--cyan-grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.topology-hero p { font-size: 17px; color: var(--text-muted); max-width: 760px; margin: 0 auto 36px; line-height: 1.8; }

/* Jump Pills */
.ocean-jump-bar { display: flex; justify-content: center; gap: 10px; margin-bottom: 40px; flex-wrap: wrap; }
.ocean-pill { font-size: 13px; color: var(--text-cyan); background: rgba(56,189,248,0.08); border: 1px solid var(--ocean-border); padding: 8px 18px; border-radius: 6px; text-decoration: none; font-family: monospace; transition: all 0.2s; }
.ocean-pill:hover { background: var(--cyan-bright); color: #000; }

/* Cable Status Board */
.cable-board { background: var(--ocean-card); border: 1px solid var(--ocean-border); border-radius: 16px; padding: 28px; margin: 30px 0 60px; box-shadow: 0 16px 40px rgba(0,0,0,0.6); }
.cable-board-header { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid rgba(255,255,255,0.08); padding-bottom: 16px; margin-bottom: 20px; font-size: 14px; font-weight: 700; color: #FFF; }
.cable-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 13.5px; }
.cable-table th { color: var(--cyan-bright); padding: 12px; border-bottom: 1px solid var(--ocean-border); font-family: monospace; }
.cable-table td { padding: 14px 12px; border-bottom: 1px solid rgba(255,255,255,0.04); color: var(--text-cyan); }
.cable-status-good { color: #34D399; font-weight: 700; }

/* 3-Column Architecture */
.ocean-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 40px 0; }
.ocean-card { background: var(--ocean-card); border: 1px solid var(--ocean-border); border-radius: 12px; padding: 28px; transition: all 0.25s; }
.ocean-card:hover { border-color: var(--cyan-bright); transform: translateY(-3px); }
.ocean-card h3 { font-size: 20px; color: #FFF; margin-bottom: 12px; font-weight: 800; }
.ocean-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* Ecosystem Bar */
.site-ecosystem-bar { background: rgba(255,255,255,0.02); border: 1px solid var(--ocean-border); border-radius: 12px; padding: 20px 24px; margin-bottom: 30px; }
.ecosystem-title { font-size: 13px; font-weight: 800; color: var(--cyan-bright); margin-bottom: 12px; }
.ecosystem-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.footer-link { font-size: 13px; color: var(--text-cyan); background: rgba(56,189,248,0.08); border: 1px solid var(--ocean-border); padding: 6px 14px; border-radius: 4px; text-decoration: none; }
.footer-link:hover, .footer-link.current { background: var(--cyan-bright); color: #000; }

/* Quick Jump Dock */
.quick-jump-dock { position: fixed; right: 28px; bottom: 32px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; opacity: 0; pointer-events: none; transition: all 0.3s; }
.quick-jump-dock.visible { opacity: 1; pointer-events: auto; }
.jump-action-btn { display: flex; align-items: center; gap: 6px; padding: 10px 16px; border-radius: 6px; font-size: 13px; font-weight: 700; text-decoration: none; }
.jump-top { background: #0D1B2A; border: 1px solid var(--ocean-border); color: #FFF; }
.jump-official { background: var(--cyan-grad); color: #070F1E; }

/* Footer */
.ocean-footer { background: #040811; border-top: 1px solid var(--ocean-border); padding: 50px 0 24px; margin-top: 60px; font-size: 13px; }
.ocean-footer-bottom { text-align: center; border-top: 1px solid rgba(255,255,255,0.06); padding-top: 20px; color: var(--text-muted); }

@media (max-width: 860px) {
  .ocean-grid-3 { grid-template-columns: 1fr; }
  .ocean-links { display: none; }
}