:root{
  --bg:#f3f6fb;--card:#fff;--text:#152038;--muted:#6b7280;--line:#e5e7eb;
  --primary:#4f46e5;--primary2:#7c3aed;--success:#15803d;--warning:#b45309;
  --shadow:0 14px 42px rgba(15,23,42,.09)
}
*{box-sizing:border-box}
html{background:var(--bg)}
body{margin:0;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang TC","Noto Sans TC",Arial,sans-serif;background:linear-gradient(180deg,#e9edff 0,#f8fafc 320px);min-height:100vh}
button,input,select{font:inherit}
button{touch-action:manipulation}
.app{max-width:1080px;margin:auto;padding:20px 16px 90px}
.header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:4px 0 18px}
.brand h1{margin:0;font-size:26px;letter-spacing:-.02em}
.brand p{margin:5px 0 0;color:var(--muted);font-size:14px}
.pill{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 14px;font-weight:800;box-shadow:0 5px 16px rgba(15,23,42,.05)}
.tabs{display:grid;grid-template-columns:repeat(6,1fr);gap:7px;padding:7px;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:18px;position:sticky;top:8px;z-index:20;box-shadow:0 9px 26px rgba(15,23,42,.07);backdrop-filter:blur(10px)}
.tab{border:0;background:transparent;padding:11px 7px;border-radius:12px;font-weight:800;color:var(--muted);cursor:pointer}
.tab.active{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary2))}
.panel{display:none;margin-top:16px}.panel.active{display:block}
.card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:var(--shadow)}
.dashboard{display:grid;grid-template-columns:1.45fr .55fr;gap:14px}
.hero{background:linear-gradient(135deg,#292377,#6d28d9);color:#fff;min-height:245px;display:flex;flex-direction:column;justify-content:space-between}
.hero .eyebrow{font-weight:800;color:#c7d2fe;font-size:13px}
.hero h2{font-size:31px;margin:10px 0 6px;line-height:1.2}
.hero p{color:#e0e7ff;line-height:1.65}
.cta{display:flex;gap:10px;flex-wrap:wrap}
.btn{border:0;border-radius:13px;padding:11px 16px;font-weight:850;cursor:pointer}
.btn.primary{background:var(--primary);color:#fff}.hero .btn.primary{background:#fff;color:#312e81}
.btn.secondary{background:#eef2ff;color:#3730a3}.btn.ghost{background:#fff;border:1px solid var(--line);color:var(--text)}
.btn.success{background:#dcfce7;color:#166534}.btn.warning{background:#ffedd5;color:#9a3412}
.stats{display:grid;gap:12px}.stat .num{font-size:31px;font-weight:950}.stat .label{font-size:13px;color:var(--muted)}
.progress-card{margin-top:14px}.progress-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:10px}.progress{height:11px;background:#e5e7eb;border-radius:999px;overflow:hidden}.bar{height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--primary2));transition:width .3s}
.flash{min-height:600px;text-align:center;display:flex;flex-direction:column}
.counter{color:var(--muted);font-size:14px;font-weight:700}
.word{font-size:50px;line-height:1.1;font-weight:950;margin-top:16px;letter-spacing:-.02em}
.ipa{color:var(--muted);margin-top:6px}.pos{display:inline-block;margin:10px auto 0;padding:5px 10px;border-radius:999px;background:#eef2ff;color:#4338ca;font-weight:850;font-size:13px}
.meaning{font-size:25px;font-weight:900;margin:22px 0 7px}.blur{filter:blur(8px);user-select:none}
.section{text-align:left;margin-top:18px;padding-top:17px;border-top:1px solid var(--line)}
.section h3{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0 0 10px}
.example{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;padding:10px 0;line-height:1.55}
.translation{color:var(--muted);font-size:14px;margin-top:3px}
.listen{border:1px solid var(--line);background:#fff;border-radius:11px;padding:8px 11px;cursor:pointer;white-space:nowrap}
.phrases{display:flex;flex-wrap:wrap;gap:8px}.chip{background:#f3f4f6;border-radius:10px;padding:8px 10px;font-size:14px}
.actions{margin-top:auto;padding-top:24px;display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.navrow{display:flex;justify-content:space-between;align-items:center;margin-top:13px}.small{font-size:13px;color:var(--muted)}
.listtools{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:13px}.search,.select{border:1px solid var(--line);background:#fff;border-radius:12px;padding:11px 13px}.search{flex:1;min-width:210px}
.wordlist{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px;cursor:pointer}
.item:hover{border-color:#c7d2fe}.itemtop{display:flex;justify-content:space-between;gap:12px}.itemword{font-weight:950;font-size:20px}.itemmean{font-size:14px;color:var(--muted);margin-top:6px}.badge{height:max-content;font-size:12px;padding:4px 8px;border-radius:999px;background:#f3f4f6}.badge.good{background:#dcfce7;color:#166534}.badge.review{background:#ffedd5;color:#9a3412}
.quizq{font-size:34px;font-weight:950;text-align:center;margin:30px 0}.options{display:grid;gap:10px}.option{border:1px solid var(--line);background:#fff;border-radius:14px;padding:14px;text-align:left;cursor:pointer}.option.correct{background:#f0fdf4;border-color:#22c55e}.option.wrong{background:#fef2f2;border-color:#ef4444}
.packgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.pack{padding:17px;background:#f8fafc;border:1px solid var(--line);border-radius:16px}.pack h3{margin:0 0 7px}
.data-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.data-box{padding:16px;background:#f8fafc;border-radius:16px}
.status{padding:11px 13px;border-radius:12px;background:#eef2ff;color:#3730a3;font-weight:700;margin-bottom:12px}
footer{text-align:center;color:var(--muted);font-size:12px;margin-top:25px}
@media(max-width:760px){
  .dashboard{grid-template-columns:1fr}.stats{grid-template-columns:repeat(3,1fr)}
  .tabs{grid-template-columns:repeat(3,1fr);position:static}.tab{font-size:13px}
  .wordlist,.packgrid,.data-grid{grid-template-columns:1fr}.word{font-size:43px}.actions{grid-template-columns:repeat(2,1fr)}
  .app{padding:12px 12px 70px}.card{padding:18px}.hero h2{font-size:27px}
}