/* ============================================================
   F1zone 网页版 · 设计系统（与产品页保持一致：玻璃拟态、深/浅双主题）
   ============================================================ */
:root,html[data-theme="dark"]{
  color-scheme:dark;
  --bg:#0b1322; --bg-2:#0e1830;
  --ink:#e9edf5; --ink-2:#c3cddd; --sub:#93a5c0;
  --accent:#e4b863; --accent-2:#f3dca8; --accent-deep:#b98a2e;
  --glass:rgba(255,255,255,.06); --glass-strong:rgba(255,255,255,.1);
  --stroke:rgba(255,255,255,.14); --stroke-soft:rgba(255,255,255,.09);
  --tint:rgba(255,255,255,.02);
  --nav-bg:rgba(11,19,34,.6); --menu-bg:rgba(18,28,50,.95);
  --dl-bg:rgba(0,0,0,.22);
  --shadow:inset 0 1px 0 rgba(255,255,255,.18),0 14px 36px rgba(0,0,0,.28);
  --hero:radial-gradient(circle,rgba(228,184,99,.16),rgba(118,75,162,.12) 50%,transparent 72%);
  --blob-1:#667eea; --blob-2:#764ba2; --blob-3:#f093fb; --blob-4:#e4b863;
  --grain:.055; --radius:18px;
  --ok:#5fd38d; --warn:#e7b75f; --bad:#ef6b6b;
  --btn-text:#140f02;
}
html[data-theme="light"]{
  color-scheme:light;
  --bg:#e9edf4; --bg-2:#f2f5f9;
  --ink:#16202f; --ink-2:#33415a; --sub:#5d6d85;
  --accent:#2f6bff; --accent-2:#5b8cff; --accent-deep:#1d4ed8;
  --glass:rgba(255,255,255,.6); --glass-strong:rgba(255,255,255,.82);
  --stroke:rgba(255,255,255,.9); --stroke-soft:rgba(24,36,60,.1);
  --tint:rgba(255,255,255,.35);
  --nav-bg:rgba(244,247,251,.7); --menu-bg:rgba(255,255,255,.96);
  --dl-bg:rgba(255,255,255,.55);
  --shadow:inset 0 1px 0 rgba(255,255,255,.9),0 14px 36px rgba(23,36,64,.1);
  --hero:radial-gradient(circle,rgba(47,107,255,.18),rgba(120,150,255,.14) 50%,transparent 72%);
  --blob-1:#a9bfff; --blob-2:#cdb6ff; --blob-3:#ffd9f0; --blob-4:#9db8ff;
  --grain:.03;
  --ok:#1f9d55; --warn:#a87716; --bad:#c23b3b;
  --btn-text:#fff;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.55;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  transition:background .3s ease,color .3s ease;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(228,184,99,.3)}

/* 背景 */
.bg-stage{position:fixed;inset:0;z-index:-2;overflow:hidden}
.bg-stage .b{position:absolute;border-radius:50%;filter:blur(70px);opacity:.45}
.bg-stage .b1{width:520px;height:520px;left:-160px;top:-140px;background:radial-gradient(circle,var(--blob-1),transparent 68%)}
.bg-stage .b2{width:600px;height:600px;right:-240px;top:14%;background:radial-gradient(circle,var(--blob-2),transparent 66%)}
.bg-stage .b3{width:460px;height:460px;left:24%;bottom:-200px;background:radial-gradient(circle,var(--blob-3),transparent 70%);opacity:.3}
.bg-stage .b4{width:300px;height:300px;right:22%;bottom:4%;background:radial-gradient(circle,var(--blob-4),transparent 72%);opacity:.24}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:var(--grain);
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/></filter><rect width='140' height='140' filter='url(%23n)' opacity='0.6'/></svg>")}

/* 顶栏 */
.topbar{
  position:sticky;top:0;z-index:60;display:flex;align-items:center;gap:12px;
  height:58px;padding:0 18px;background:var(--nav-bg);
  backdrop-filter:blur(18px) saturate(150%);-webkit-backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid var(--stroke-soft);
}
.brand{display:flex;align-items:center;gap:9px;font-weight:750;font-size:17px;letter-spacing:-.01em}
.brand img{width:28px;height:28px;border-radius:8px;background:rgba(255,255,255,.06)}
.topbar-spacer{flex:1}
.pill{
  display:inline-flex;align-items:center;gap:7px;border:1px solid var(--stroke);
  background:var(--glass);border-radius:999px;padding:6px 12px;font-size:12.5px;font-weight:600;color:var(--ink-2);
  transition:background .2s,border-color .2s;
}
.pill:hover{background:var(--glass-strong)}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--sub);transition:background .2s}
.pill.on .dot{background:var(--ok);box-shadow:0 0 8px var(--ok)}
.theme-toggle .knob-row{position:relative;width:36px;height:20px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid var(--stroke)}
html[data-theme="light"] .theme-toggle .knob-row{background:rgba(24,36,60,.12)}
.theme-toggle .knob{position:absolute;top:2px;left:2px;width:14px;height:14px;border-radius:50%;background:var(--accent);transition:transform .2s}
html[data-theme="dark"] .theme-toggle .knob{transform:translateX(16px)}
.icon-btn{display:none;padding:6px 10px;border-radius:10px;border:1px solid var(--stroke);background:var(--glass)}

/* 布局 */
.shell{display:grid;grid-template-columns:224px 1fr;max-width:1440px;margin:0 auto;min-height:calc(100vh - 58px)}
.rail{
  position:sticky;top:58px;align-self:start;display:flex;flex-direction:column;gap:4px;
  padding:18px 12px;border-right:1px solid var(--stroke-soft);height:calc(100vh - 58px);
}
.rail-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:11px;font-size:14.5px;font-weight:600;color:var(--ink-2)}
.rail-item .ri{width:22px;text-align:center;opacity:.85}
.rail-item:hover{background:var(--glass)}
.rail-item.active{background:var(--glass-strong);color:var(--ink);box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}
.rail-item.disabled{opacity:.38;cursor:not-allowed}
.rail-item.disabled:hover{background:none}
.view{min-width:0;padding:26px 30px 90px;max-width:1140px;width:100%;margin:0 auto}
.tabbar{display:none}
@media (max-width:860px){
  .shell{grid-template-columns:1fr}
  .rail{display:none;position:fixed;top:58px;left:0;right:0;bottom:0;z-index:70;height:auto;
    background:var(--menu-bg);backdrop-filter:blur(20px);border-right:0;padding:14px}
  .rail.open{display:flex}
  .icon-btn{display:block}
  .view{padding:18px 16px 86px}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;
    background:var(--nav-bg);backdrop-filter:blur(18px);border-top:1px solid var(--stroke-soft);
    padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
  .tabbar a{flex:1;text-align:center;font-size:12px;color:var(--ink-2);padding:7px 0;border-radius:9px}
  .tabbar a.active{color:var(--accent);font-weight:700}
  .tabbar a.disabled{opacity:.38}
}

/* 通用 */
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.page-head h1{font-size:24px;letter-spacing:-.02em;font-weight:800}
.page-head p{color:var(--sub);font-size:13.5px;margin-top:4px}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--stroke-soft);margin-bottom:20px;overflow-x:auto}
.tabs a{padding:9px 14px;font-size:14.5px;font-weight:650;color:var(--sub);border-bottom:2px solid transparent;white-space:nowrap}
.tabs a.active{color:var(--accent);border-bottom-color:var(--accent)}
.card{background:var(--glass);border:1px solid var(--stroke);border-radius:var(--radius);box-shadow:var(--shadow);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%)}
.section-title{font-size:13px;font-weight:750;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:6px 0 12px}
.btn{display:inline-flex;align-items:center;gap:7px;border-radius:11px;padding:9px 16px;font-size:14px;font-weight:650;border:1px solid var(--stroke);background:var(--glass);transition:background .15s,transform .12s}
.btn:hover{background:var(--glass-strong)}
.btn-primary{background:linear-gradient(135deg,var(--accent-2),var(--accent));color:var(--btn-text);border-color:transparent;box-shadow:0 8px 22px rgba(0,0,0,.18)}
.btn-sm{padding:6px 11px;font-size:12.5px;border-radius:9px}
.select,input[type=text],input[type=search]{background:var(--glass);border:1px solid var(--stroke);border-radius:10px;padding:8px 11px;font-size:14px;color:var(--ink)}
.select:focus,input:focus{outline:2px solid var(--accent);outline-offset:1px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--stroke);background:var(--glass);border-radius:999px;padding:5px 11px;font-size:12.5px;font-weight:600}
.chip.active{background:var(--accent);color:var(--btn-text);border-color:transparent}
.muted{color:var(--sub)}
.small{font-size:12.5px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}
.empty{padding:34px;text-align:center;color:var(--sub)}

/* 赛历 */
.season-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.flags{display:inline-block;font-size:15px;line-height:1}
.race-card{margin-bottom:10px;overflow:hidden}
.race-head{display:flex;align-items:center;gap:12px;padding:13px 16px;cursor:pointer;user-select:none}
.race-head:hover{background:var(--glass-strong)}
.race-title{display:flex;align-items:center;gap:10px;min-width:0}
.race-title .name{font-weight:750;font-size:15.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.race-title .rnd{font-size:12px;color:var(--sub);font-variant-numeric:tabular-nums}
.sprint-tag{font-size:11.5px;font-weight:700;color:var(--accent);background:color-mix(in srgb,var(--accent) 14%,transparent);border:1px solid color-mix(in srgb,var(--accent) 34%,transparent);padding:1px 7px;border-radius:6px}
.race-range{margin-left:auto;font-size:12.5px;color:var(--sub);white-space:nowrap}
.race-body{display:none;padding:4px 16px 14px;border-top:1px solid var(--stroke-soft)}
.race-card.open .race-body{display:block}
.day-block{margin-top:10px}
.day-title{font-size:12.5px;color:var(--sub);font-weight:650;margin-bottom:6px}
.session-row{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;font-size:14px}
.session-row+.session-row{margin-top:2px}
.session-row .sname{font-weight:700;min-width:74px}
.session-row .stime{margin-left:auto;font-variant-numeric:tabular-nums;color:var(--ink-2);white-space:nowrap}
.session-row .sweather{font-size:12.5px;color:var(--sub);white-space:nowrap}
.countdown{display:flex;align-items:center;gap:10px;margin:12px 0 4px;padding:10px 12px;border-radius:12px;background:var(--dl-bg);border:1px solid var(--stroke-soft)}
.countdown .cd-num{font-size:18px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.5px}
.countdown .cd-label{font-size:12.5px;color:var(--sub)}
.race-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 16px;margin-top:12px;padding:10px 12px;border-radius:12px;background:var(--glass);border:1px solid var(--stroke-soft)}
.result-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--sub);min-width:0}
.result-row b{font-size:13.5px;color:var(--ink);font-weight:700;text-align:right;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.race-results-empty{margin-top:12px;padding:9px 12px;border-radius:10px;background:var(--glass);color:var(--sub);font-size:13px}
@media (max-width:560px){.race-results{grid-template-columns:1fr}}
.race-actions{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}

.chart-wrap{width:100%;overflow-x:auto;margin-top:8px;padding-bottom:4px}
.chart-wrap .chart-svg{width:100%;min-width:680px;height:auto;display:block}
@media (max-width:700px){.chart-wrap .chart-svg{min-width:640px}}
/* 表格 */
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th{text-align:left;font-size:12px;color:var(--sub);font-weight:650;padding:8px 10px;border-bottom:1px solid var(--stroke-soft);white-space:nowrap}
.table td{padding:9px 10px;border-bottom:1px solid var(--stroke-soft);vertical-align:middle}
.table tr:last-child td{border-bottom:0}
.table .num{text-align:right;font-variant-numeric:tabular-nums}
.table tbody tr:hover{background:var(--glass)}
.pos{display:inline-grid;place-items:center;min-width:26px;height:24px;border-radius:7px;font-size:12.5px;font-weight:750;background:var(--glass-strong)}
.team-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:7px}

/* 统计 */
.grid{display:grid;gap:12px}
.grid.cols-2{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}
.grid.cols-3{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.stat-card{padding:14px 16px;display:flex;flex-direction:column;gap:6px}
.stat-card .t{font-weight:750;font-size:15px}
.stat-card .s{font-size:12.5px;color:var(--sub)}
.kv{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px;margin-top:10px}
.kv .k{font-size:11.5px;color:var(--sub)}
.kv .v{font-size:16px;font-weight:750;font-variant-numeric:tabular-nums}
.bar{height:7px;border-radius:99px;background:var(--glass-strong);overflow:hidden;margin-top:6px}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--accent-2),var(--accent))}

/* 对比 */
.panel{padding:16px}
.picker{display:flex;flex-wrap:wrap;gap:6px;max-height:168px;overflow:auto;padding:4px}
.picker .chip{cursor:pointer}
.interval-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.chart-wrap{position:relative;margin-top:14px}
.chart-wrap svg{width:100%;height:auto;display:block;overflow:visible}
.legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;font-size:12.5px;color:var(--ink-2)}
.legend i{display:inline-block;width:14px;height:3px;border-radius:2px;vertical-align:middle;margin-right:6px}

/* 个人 */
.form{display:grid;gap:12px;max-width:560px}
.field{display:grid;gap:6px}
.field label{font-size:12.5px;color:var(--sub);font-weight:650}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.switch{position:relative;width:46px;height:26px;border-radius:99px;background:var(--glass-strong);border:1px solid var(--stroke);cursor:pointer;transition:background .2s}
.switch i{position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:var(--ink-2);transition:transform .2s,background .2s}
.switch.on{background:var(--accent)}
.switch.on i{transform:translateX(20px);background:#fff}

/* 弹层 */
.modal{position:fixed;inset:0;z-index:90;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(0,0,0,.55);backdrop-filter:blur(6px)}
.modal.open{display:flex}
.modal-card{width:min(760px,100%);max-height:88vh;overflow:auto;background:var(--menu-bg);border:1px solid var(--stroke);border-radius:20px;padding:20px}
.modal-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.modal-head h3{font-size:18px}
.circuit-stats{display:flex;gap:28px;margin:8px 0 12px;flex-wrap:wrap}
.circuit-stats .k{display:block;font-size:12px;color:var(--sub);margin-bottom:3px}
.circuit-stats b{font-size:16px;font-weight:750}
.modal img.map{width:100%;border-radius:12px;background:transparent;display:block}
.modal img.track-map{min-height:150px;object-fit:contain}
.modal .zoom{cursor:zoom-in}
.zoomed{position:fixed;inset:0;z-index:120;background:var(--screen-bg);display:none;align-items:center;justify-content:center;padding:14px}
.zoomed.open{display:flex}
.zoomed img{max-width:96vw;max-height:94vh;object-fit:contain;border-radius:8px}

/* toast */
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);z-index:200;background:var(--menu-bg);border:1px solid var(--stroke);border-radius:12px;padding:10px 16px;font-size:13.5px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;box-shadow:0 16px 40px rgba(0,0,0,.3)}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}