/* QuantOS V4.5 — Style aligned with zongmao.cn */
/* v=20260701-zongmao */

/* ── Design Tokens (matches zongmao.cn) ── */
:root {
  --primary: #1a5276;
  --primary-light: #2980b9;
  --accent: #e74c3c;
  --accent-green: #27ae60;
  --bg: #f5f6fa;
  --card: #ffffff;
  --text: #2c3e50;
  --text-light: #7f8c8d;
  --border: #e0e0e0;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --radius: 8px;
}

/* ── Reset & Base ── */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.6;min-height:100vh}

/* ── Accessibility ── */
:focus-visible{outline:2px solid var(--primary-light);outline-offset:2px;border-radius:3px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;top:-100px;left:16px;background:var(--primary);color:#fff;padding:8px 16px;border-radius:4px;z-index:1000;font-size:14px;text-decoration:none;transition:top .2s}
.skip-link:focus{top:16px}

/* ── Navbar (matches zongmao.cn) ── */
.navbar{background:var(--primary);padding:0 2rem;display:flex;align-items:center;height:56px;position:sticky;top:0;z-index:100;box-shadow:0 2px 4px rgba(0,0,0,0.1)}
.nav-brand{color:#fff;font-size:1.2rem;font-weight:700;text-decoration:none;white-space:nowrap;display:flex;align-items:center;gap:6px}
.nav-links{display:flex;gap:0.25rem;flex:1;margin-left:2rem}
.nav-links a{color:rgba(255,255,255,0.85);padding:0.5rem 0.9rem;border-radius:4px;font-size:0.92rem;transition:all .2s;text-decoration:none}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,0.15)}
.nav-right{display:flex;align-items:center;gap:0.75rem;margin-left:auto}
.nav-badge{font-size:0.75rem;padding:3px 10px;border-radius:10px;background:rgba(255,255,255,0.12);color:rgba(255,255,255,0.85);border:1px solid rgba(255,255,255,0.15);white-space:nowrap}
@media(max-width:768px){.navbar{flex-wrap:wrap;height:auto;padding:0.5rem 1rem}.nav-links{margin-left:0;flex-wrap:wrap;gap:0}.nav-right{margin:4px 0}}

/* ── Pipeline (产品闭环) ── */
.pipeline{display:flex;align-items:center;justify-content:center;gap:0;padding:12px 32px;background:var(--card);border-bottom:1px solid var(--border);flex-wrap:wrap;overflow-x:auto}
.pipeline-step{display:flex;align-items:center;gap:5px;font-size:0.82rem;color:var(--text-light);white-space:nowrap;padding:2px 0}
.pipeline-step .step-icon{font-size:13px}
.pipeline-step .step-arrow{color:var(--border);margin:0 6px;font-size:10px}
.pipeline-end .step-arrow{display:none}
.pipeline-end{color:var(--primary);font-weight:600}
@media(max-width:768px){.pipeline{justify-content:flex-start;padding:8px 16px;font-size:0.75rem}}

/* ── Container ── */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:768px){.container{padding:0 12px}}

/* ── Page Header ── */
.page-header{padding:28px 0 16px;text-align:center}
.page-header h1{font-size:1.5rem;font-weight:700;color:var(--text);margin:0 0 4px}
.page-header .subtitle{font-size:0.88rem;color:var(--text-light)}

/* ── Stats Row ── */
.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;padding:0 0 20px}
.stat-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 20px;display:flex;align-items:center;gap:14px;transition:box-shadow .15s}
.stat-card:hover{box-shadow:0 4px 16px rgba(0,0,0,0.12)}
.stat-icon{font-size:28px;width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:10px;flex-shrink:0}
.stat-icon.macro{background:rgba(26,82,118,0.1);color:var(--primary)}
.stat-icon.regime{background:rgba(231,76,60,0.1);color:var(--accent)}
.stat-icon.nav{background:rgba(39,174,96,0.1);color:var(--accent-green)}
.stat-icon.risk{background:rgba(41,128,185,0.1);color:var(--primary-light)}
.stat-body{flex:1;min-width:0}
.stat-value{font-size:1.25rem;font-weight:700;color:var(--text);line-height:1.2}
.stat-label{font-size:0.72rem;color:var(--text-light);text-transform:uppercase;letter-spacing:0.5px}
.stat-sub{font-size:0.8rem;color:var(--text-light);margin-top:2px}
.stat-sub .green{color:var(--accent-green)}.stat-sub .red{color:var(--accent)}.stat-sub .blue{color:var(--primary-light)}

/* ── Section ── */
.section{margin-bottom:16px}
.section-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.section-card h3{font-size:0.82rem;color:var(--text-light);text-transform:uppercase;letter-spacing:0.5px;margin:0 0 14px;font-weight:600}

/* ── Tables ── */
table{width:100%;border-collapse:collapse;font-size:0.88rem}
th{text-align:left;color:var(--text-light);font-weight:600;padding:8px 0;border-bottom:2px solid var(--border);font-size:0.75rem;text-transform:uppercase}
td{padding:7px 0;border-bottom:1px solid var(--bg);font-size:0.87rem}
tr:last-child td{border-bottom:none}

/* ── Tags ── */
.tag{padding:3px 10px;border-radius:12px;font-size:0.75rem;font-weight:600;display:inline-block}
.tag-long{background:rgba(39,174,96,0.1);color:var(--accent-green)}
.tag-short{background:rgba(231,76,60,0.1);color:var(--accent)}
.tag-hold{background:rgba(127,140,141,0.1);color:var(--text-light)}

/* ── Chart ── */
.chart-section{margin-bottom:16px}
.chart-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.chart-card h3{font-size:0.82rem;color:var(--text-light);text-transform:uppercase;letter-spacing:0.5px;margin:0 0 14px;font-weight:600}
#navChart{width:100%;height:240px;display:block}
.chart-legend{display:flex;justify-content:center;gap:20px;margin-top:10px;font-size:0.78rem;color:var(--text-light);flex-wrap:wrap}

/* ── Execution Log ── */
.log{max-height:200px;overflow-y:auto;font-family:"SF Mono",Menlo,Consolas,monospace;font-size:0.8rem;color:var(--text-light);background:var(--bg);border-radius:6px;padding:10px 14px}
.log div{padding:4px 0;border-bottom:1px solid rgba(0,0,0,0.04)}
.log div:last-child{border-bottom:none}
.log .skip{color:var(--accent)}

/* ── Two-column panel ── */
.panel{display:grid;grid-template-columns:2fr 1fr;gap:16px;margin-bottom:16px}
@media(max-width:768px){.panel{grid-template-columns:1fr}}

/* ── Buttons ── */
.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;padding:8px 0 0}
.btn{padding:8px 20px;border-radius:6px;font-size:0.88rem;cursor:pointer;transition:all .15s;font-family:inherit;font-weight:500;border:none;line-height:1.5;text-decoration:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#154360}
.btn-secondary{background:var(--card);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--bg);border-color:var(--primary-light)}
.btn-danger{background:transparent;color:var(--accent);border:1px solid rgba(231,76,60,0.3)}
.btn-danger:hover{background:rgba(231,76,60,0.06);border-color:var(--accent)}
.btn:focus-visible{outline:2px solid var(--primary-light);outline-offset:2px}
.status-text{margin-left:12px;font-size:0.8rem;color:var(--text-light)}

/* ── Zongmao Stats ── */
.zongmao-stats{background:var(--primary);padding:10px 24px;text-align:center}
.zongmao-stats-inner{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;font-size:0.85rem}
.zongmao-label{color:rgba(255,255,255,0.7)}
.zongmao-divider{color:rgba(255,255,255,0.2)}
#zs-winrate{color:#fff;font-weight:700}
.zongmao-note{color:rgba(255,255,255,0.55);font-size:0.78rem}
.zongmao-link{color:rgba(255,255,255,0.9);text-decoration:underline;font-weight:500;margin-left:4px}
.zongmao-link:hover{color:#fff}
@media(max-width:768px){.zongmao-stats{padding:8px 16px}.zongmao-stats-inner{font-size:0.78rem}}

/* ── Loading / States ── */
.loading{text-align:center;padding:60px 20px;color:var(--text-light);font-size:0.95rem}
.loading-spinner{display:inline-block;width:24px;height:24px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite;margin-bottom:12px}
@keyframes spin{to{transform:rotate(360deg)}}
.error-state{text-align:center;padding:60px 20px;color:var(--accent);font-size:0.9rem}

/* ── Toast ── */
.toast{position:fixed;top:16px;right:16px;padding:10px 20px;border-radius:6px;font-size:0.85rem;z-index:1000;transition:opacity .3s;opacity:0;pointer-events:none}
.toast.show{opacity:1;pointer-events:auto}
.toast.success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}
.toast.error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}

/* ── Footer ── */
.footer{background:var(--primary);color:rgba(255,255,255,0.7);padding:20px 2rem;font-size:0.78rem;text-align:center;line-height:1.8}
.footer a{color:rgba(255,255,255,0.9);text-decoration:none;margin:0 6px}
.footer a:hover{text-decoration:underline}
.footer-brand{font-weight:600;color:#fff}

/* ── Print ── */
@media print{
  body{background:#fff;color:#000}
  .navbar,.pipeline,.actions,.toast,.btn,.log,.zongmao-stats{display:none}
  .stat-card,.section-card,.chart-card{background:#fff;border:1px solid #ddd;box-shadow:none}
}