:root{--bg:#f4f6fb;--card:#fff;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--pos:#059669;--neg:#dc2626;--brand:#4f46e5;--brand2:#eef2ff;--warn:#b45309}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-tap-highlight-color:transparent}
body{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
.hidden{display:none!important}
header#top{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:8px;padding:calc(10px + env(safe-area-inset-top)) 14px 10px;background:var(--ink);color:#fff}
#title{flex:1;font-weight:700;font-size:18px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.icon{font-size:22px;width:36px;height:36px;border-radius:10px}
header .icon{color:#fff}
main{max-width:640px;margin:0 auto;padding:12px}
h3{margin:20px 4px 8px;font-size:15px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
h2{margin:0 0 8px}
.card{background:var(--card);border-radius:16px;box-shadow:0 1px 2px rgba(15,23,42,.06);margin-bottom:10px;overflow:hidden}
.pad{padding:14px}.center{text-align:center}.right{text-align:right}.grow{flex:1;min-width:0}
.muted{color:var(--muted)}.small{font-size:13px}.b{font-weight:650}.ell{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pos{color:var(--pos)}.neg{color:var(--neg)}.warn{color:var(--warn);margin-top:8px}
.hero{background:var(--card);border-radius:20px;padding:16px;box-shadow:0 1px 2px rgba(15,23,42,.06);margin-bottom:12px}
.big{font-size:34px;font-weight:750;letter-spacing:-.02em;margin:2px 0}
.split,.split2{display:flex;gap:10px;margin-top:12px}.split>div{flex:1;background:var(--bg);border-radius:12px;padding:10px}
.split2>*{flex:1}
.list .row{border-bottom:1px solid var(--line)}.list .row:last-child{border-bottom:0}
.row{display:flex;align-items:center;gap:12px;padding:12px 14px}
.tap{cursor:pointer}.tap:active{background:var(--bg)}
.emoji{font-size:24px;width:38px;height:38px;display:grid;place-items:center;background:var(--bg);border-radius:12px;flex:none}
.big-emoji{font-size:28px;width:46px;height:46px}
.btn{padding:12px 16px;border-radius:12px;background:var(--brand2);color:var(--brand);font-weight:650}
.btn.primary{background:var(--brand);color:#fff}.btn:disabled{opacity:.4}.btn.wide{width:100%;margin-top:12px}
.link{color:var(--brand);font-size:13px;padding:4px}
.badge{display:inline-block;font-size:11px;padding:2px 8px;border-radius:99px;background:var(--bg);color:var(--muted);vertical-align:middle;margin-left:4px}
.badge.open{background:#d1fae5;color:#065f46}.badge.filled{background:#d1fae5;color:#065f46}.badge.cancelled,.badge.rejected{background:#fee2e2;color:#991b1b}
.side{font-size:11px;font-weight:700;padding:1px 6px;border-radius:6px}.side.buy{background:#d1fae5;color:#065f46}.side.sell{background:#fee2e2;color:#991b1b}
.pills{display:flex;gap:6px;justify-content:center;margin:8px 0}
.pill{padding:6px 12px;border-radius:99px;font-size:13px;color:var(--muted)}.pill.on{background:var(--ink);color:#fff}
.chips{display:flex;gap:8px;overflow-x:auto;padding:2px 2px 6px}
.chip{white-space:nowrap;background:var(--card);border-radius:99px;padding:8px 12px;box-shadow:0 1px 2px rgba(15,23,42,.06);font-size:14px}
.searchbar{width:100%;text-align:left;background:var(--card);border-radius:14px;padding:12px 14px;color:var(--muted);box-shadow:0 1px 2px rgba(15,23,42,.06)}
input{font:inherit;width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink)}
input.search{margin-bottom:10px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:14px}
.chart{display:block;touch-action:pan-y;margin-top:8px}.chart-tip{min-height:20px;text-align:center;font-size:13px}
.star{color:var(--muted)}.star.on{color:#f59e0b}
.qm{display:inline-grid;place-items:center;width:17px;height:17px;border-radius:50%;background:var(--brand2);color:var(--brand);font-size:11px;font-weight:700;vertical-align:1px;margin-left:2px}
#pop{position:absolute;z-index:30;width:260px;background:var(--ink);color:#fff;border-radius:12px;padding:10px 12px;font-size:14px;box-shadow:0 8px 24px rgba(0,0,0,.25)}
#pop b{display:block;margin-bottom:2px}
#toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(84px + env(safe-area-inset-bottom));z-index:40;padding:10px 16px;border-radius:12px;color:#fff;max-width:90%;font-size:14px}
#toast.ok{background:#065f46}#toast.bad{background:#991b1b}
nav#tabs{position:fixed;bottom:0;left:0;right:0;z-index:5;display:flex;background:#fff;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}
nav#tabs button{flex:1;padding:8px 0 10px;font-size:11px;color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:2px}
nav#tabs button span{font-size:20px;filter:grayscale(1);opacity:.7}
nav#tabs button.on{color:var(--brand);font-weight:650}nav#tabs button.on span{filter:none;opacity:1}
#sheet{position:fixed;inset:0;z-index:20}.sheet-bg{position:absolute;inset:0;background:rgba(15,23,42,.45)}
.sheet-body{position:absolute;left:0;right:0;bottom:0;max-width:640px;margin:0 auto;background:var(--bg);border-radius:20px 20px 0 0;padding:16px 16px calc(20px + env(safe-area-inset-bottom));max-height:92vh;overflow:auto}
.sheet-head{display:flex;justify-content:space-between;align-items:center;font-size:18px;margin-bottom:4px}
.seg{display:flex;background:var(--line);border-radius:12px;padding:3px;margin:12px 0}
.seg button{flex:1;padding:8px;border-radius:10px;font-size:14px;color:var(--muted)}.seg button.on{background:#fff;color:var(--ink);font-weight:650;box-shadow:0 1px 2px rgba(0,0,0,.08)}
.field{display:block;margin:10px 0}.field>span{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
.bar{display:flex;height:12px;border-radius:99px;overflow:hidden;margin:12px 0 8px;background:var(--line)}
.legend{display:flex;flex-wrap:wrap;gap:6px 12px;color:var(--muted)}.legend i{display:inline-block;width:9px;height:9px;border-radius:3px;margin-right:4px}
.news{padding:12px 14px;border-bottom:1px solid var(--line);cursor:pointer}.news:last-child{border-bottom:0}
.news.read>.b{color:var(--muted);font-weight:550}.news-more{margin-top:6px;font-size:15px}.news-more p{margin:6px 0}
.tag{font-size:11px;padding:1px 6px;border-radius:6px;background:var(--brand2);color:var(--brand);font-weight:650}
.think{background:#fef9c3;border-radius:10px;padding:8px 10px}
.tip{padding:12px 14px;background:#fffbeb}
.lesson-next{background:var(--brand2)}
.about p{margin:6px 0}.lesson{font-size:17px}.lesson p{margin:10px 0}
.quiz .opt{display:block;width:100%;text-align:left;margin-top:8px;padding:10px 12px;border-radius:10px;background:var(--bg)}
.opt.right{background:#d1fae5;color:#065f46;font-weight:650}.opt.wrong{background:#fee2e2;color:#991b1b}
.fb{margin-top:6px;min-height:18px}
.gl{padding:10px 14px;border-bottom:1px solid var(--line)}
body.login{display:grid;place-items:center;min-height:100vh;padding:20px}
.login-card{max-width:360px;width:100%;padding:24px;display:flex;flex-direction:column;gap:10px;text-align:center}
.login-card .logo{font-size:44px}.login-card h1{margin:0}
@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--card:#111a2e;--ink:#e2e8f0;--muted:#94a3b8;--line:#1e293b;--brand2:#1e1b4b;--brand:#818cf8}
  header#top{background:#020617}nav#tabs{background:#0b1220}input{background:#0b1220}.seg button.on{background:#111a2e}
  .pill.on{background:#e2e8f0;color:#0b1220}.tip{background:#1f1a0b}.think{background:#2a240a}#pop{background:#1e293b}}