/* ===== Reset & Variables ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
    --bg:#ffffff;
    --bg-alt:#f9fafb;
    --bg-hover:#f3f4f6;
    --border:#e5e7eb;
    --border-strong:#d1d5db;
    --text:#111827;
    --text-sec:#4b5563;
    --text-muted:#9ca3af;
    --accent:#059669;
    --accent-light:#d1fae5;
    --accent-text:#065f46;
    --danger:#dc2626;
    --success:#059669;
    --warn:#d97706;
    --mono:'SF Mono','JetBrains Mono','Fira Code',ui-monospace,Menlo,Consolas,monospace;
    --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Inter,'PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
}
[data-theme="dark"]{
    --bg:#0f1117;
    --bg-alt:#16181f;
    --bg-hover:#1e212b;
    --border:#262932;
    --border-strong:#353846;
    --text:#e5e7eb;
    --text-sec:#9ca3af;
    --text-muted:#6b7280;
    --accent:#10b981;
    --accent-light:#064e3b;
    --accent-text:#6ee7b7;
    --danger:#f87171;
    --success:#34d399;
    --warn:#fbbf24;
}
html{font-size:14px;-webkit-font-smoothing:antialiased}
body{font-family:var(--sans);background:var(--bg);color:var(--text);line-height:1.5;transition:background .2s,color .2s}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1440px;margin:0 auto;padding:0 24px}

/* ===== Topbar ===== */
.topbar{border-bottom:1px solid var(--border);background:var(--bg);position:sticky;top:0;z-index:100}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:52px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:10px;height:10px;background:var(--accent);display:inline-block;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-title{font-size:13px;font-weight:700;letter-spacing:-.2px}
.brand-sub{font-size:11px;color:var(--text-muted)}
.topbar-right{display:flex;align-items:center;gap:16px}
.update-indicator{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--text-sec);font-family:var(--mono)}
.update-indicator .dot{width:6px;height:6px;border-radius:50%;background:var(--success);display:inline-block}
.theme-btn{background:var(--bg-alt);border:1px solid var(--border);padding:4px 10px;font-size:11px;font-family:var(--mono);color:var(--text-sec);cursor:pointer;border-radius:3px;transition:all .15s}
.theme-btn:hover{border-color:var(--accent);color:var(--accent)}
.theme-icon{display:none}
[data-theme="light"] .theme-icon.sun{display:inline}
[data-theme="dark"] .theme-icon.moon{display:inline}

/* ===== Tabbar ===== */
.tabbar{border-bottom:1px solid var(--border);background:var(--bg)}
.tabs{display:flex;gap:0;height:38px}
.tab{background:none;border:none;padding:0 16px;font-size:12px;font-weight:500;color:var(--text-sec);cursor:pointer;height:38px;border-bottom:2px solid transparent;transition:all .15s;font-family:var(--sans)}
.tab:hover{color:var(--text)}
.tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}

/* ===== Content ===== */
.content{padding:20px 24px 48px}

/* ===== Summary Strip ===== */
.summary-strip{display:flex;align-items:center;gap:0;padding:14px 0;border-bottom:1px solid var(--border);margin-bottom:20px}
.summary-item{display:flex;flex-direction:column;gap:2px;padding:0 20px}
.summary-item:first-child{padding-left:0}
.summary-label{font-size:10px;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);font-weight:600}
.summary-value{font-size:15px;font-weight:700;font-family:var(--mono);letter-spacing:-.3px}
.summary-divider{width:1px;height:28px;background:var(--border)}

/* ===== Panel ===== */
.panel{display:none}
.panel.active{display:block;animation:fade .2s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;flex-wrap:wrap;gap:10px}
.panel-title{font-size:15px;font-weight:700;letter-spacing:-.2px}
.panel-note{font-size:11px;color:var(--text-muted);font-family:var(--mono)}
.panel-filters{display:flex;gap:8px}
.panel-filters select{padding:5px 8px;font-size:11px;border:1px solid var(--border);border-radius:3px;background:var(--bg);color:var(--text);font-family:var(--sans);cursor:pointer;outline:none}
.panel-filters select:focus{border-color:var(--accent)}

/* ===== Data Table ===== */
.table-scroll{overflow-x:auto;border:1px solid var(--border);border-radius:3px}
.dt{width:100%;border-collapse:collapse;font-size:12px}
.dt thead th{background:var(--bg-alt);padding:8px 10px;text-align:left;font-weight:600;font-size:10px;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);border-bottom:1px solid var(--border);white-space:nowrap}
.dt tbody td{padding:7px 10px;border-bottom:1px solid var(--border);white-space:nowrap;vertical-align:middle}
.dt tbody tr:last-child td{border-bottom:none}
.dt tbody tr{transition:background .1s}
.dt tbody tr:hover{background:var(--bg-hover)}
.col-rank{width:40px;text-align:center}
.col-num{text-align:right;font-family:var(--mono);font-variant-numeric:tabular-nums}
.col-model{min-width:160px}
.rank-num{font-family:var(--mono);font-weight:700;color:var(--text-muted);font-size:11px}
.rank-num.top1{color:var(--accent)}
.model-name{font-weight:600;font-size:12px}
.model-vendor{font-size:10px;color:var(--text-muted);margin-top:1px}
.tier-tag{display:inline-block;font-size:9px;padding:1px 5px;border-radius:2px;font-weight:600;text-transform:uppercase;letter-spacing:.3px;margin-top:2px}
.tier-flagship{background:var(--accent-light);color:var(--accent-text)}
.tier-midrange{background:var(--bg-hover);color:var(--text-sec)}
.tier-budget{background:var(--bg-alt);color:var(--text-muted)}
.conf-badge{display:inline-block;font-size:9px;padding:1px 5px;border-radius:2px;font-weight:700;text-transform:uppercase;letter-spacing:.3px}
.conf-high{background:#d1fae5;color:#065f46}
.conf-medium{background:#fef3c7;color:#92400e}
.conf-low{background:#fee2e2;color:#991b1b}
[data-theme="dark"] .conf-high{background:#064e3b;color:#6ee7b7}
[data-theme="dark"] .conf-medium{background:#422006;color:#fbbf24}
[data-theme="dark"] .conf-low{background:#450a0a;color:#fca5a5}
[data-theme="dark"] .tier-flagship{background:#064e3b;color:#6ee7b7}
.score{font-family:var(--mono);font-weight:600;font-variant-numeric:tabular-nums}
.score.high{color:var(--success)}
.score.mid{color:var(--warn)}
.score.low{color:var(--text-muted)}
.price{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:500}
.price.cheap{color:var(--success)}
.price.expensive{color:var(--danger)}
.elo-badge{font-family:var(--mono);font-size:11px;font-weight:600;color:var(--accent-text);background:var(--accent-light);padding:1px 6px;border-radius:2px}
[data-theme="dark"] .elo-badge{background:#064e3b;color:#6ee7b7}
.est-tag{font-size:9px;color:var(--text-muted);font-style:italic}

/* ===== Charts ===== */
.chart-box{background:var(--bg);border:1px solid var(--border);border-radius:3px;padding:16px;margin-bottom:16px}
.chart-title{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-bottom:12px}
.chart-box canvas{max-height:380px}
.chart-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.chart-grid-2 .chart-box{margin-bottom:0}

/* ===== Compare ===== */
.compare-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}
.compare-sel label{display:block;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-bottom:4px}
.compare-sel select{width:100%;padding:6px 8px;font-size:11px;border:1px solid var(--border);border-radius:3px;background:var(--bg);color:var(--text);font-family:var(--sans);cursor:pointer;outline:none}
.compare-sel select:focus{border-color:var(--accent)}

/* ===== Methodology ===== */
.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.method-block{border:1px solid var(--border);border-radius:3px;padding:18px}
.method-h{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--text);margin-bottom:14px;padding-bottom:8px;border-bottom:1px solid var(--border)}
.weight-list{display:flex;flex-direction:column;gap:8px}
.weight-row{display:flex;align-items:center;gap:10px}
.weight-lbl{width:80px;font-size:11px;color:var(--text-sec);text-align:right;flex-shrink:0}
.weight-track{flex:1;height:18px;background:var(--bg-alt);border-radius:2px;overflow:hidden;position:relative}
.weight-fill{height:100%;background:var(--accent);display:flex;align-items:center;justify-content:flex-end;padding-right:6px;color:#fff;font-size:10px;font-weight:700;font-family:var(--mono);border-radius:2px;transition:width .4s}
.src-list{list-style:none;display:flex;flex-direction:column;gap:8px}
.src-list li{font-size:12px;color:var(--text-sec);padding-left:14px;position:relative;line-height:1.5}
.src-list li::before{content:"";position:absolute;left:0;top:7px;width:5px;height:1px;background:var(--accent)}
.formula-block{background:var(--bg-alt);border-radius:3px;padding:14px;display:flex;flex-direction:column;gap:8px}
.formula-block p{font-size:11px;font-family:var(--mono);color:var(--text-sec);line-height:1.6}

/* ===== Footer ===== */
.footer{border-top:1px solid var(--border);padding:16px 0;margin-top:32px}
.footer-inner{display:flex;flex-direction:column;gap:4px}
.footer span{font-size:11px;color:var(--text-muted)}
.footer-note{font-size:10px !important;color:var(--text-muted) !important;opacity:.7}

/* ===== Loading ===== */
.loading-row td{text-align:center;padding:40px !important;color:var(--text-muted);font-size:12px}

/* ===== Responsive ===== */
@media(max-width:1024px){
    .chart-grid-2{grid-template-columns:1fr}
    .method-grid{grid-template-columns:1fr}
    .compare-row{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
    .wrap{padding:0 16px}
    .content{padding:16px}
    .summary-strip{flex-wrap:wrap;gap:12px}
    .summary-divider{display:none}
    .summary-item{padding:0}
    .brand-sub{display:none}
    .compare-row{grid-template-columns:1fr}
    .dt{font-size:11px}
    .dt thead th,.dt tbody td{padding:6px 8px}
}