:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,Helvetica,sans-serif;color:#222;background:#f7f7f4;-webkit-text-size-adjust:100%}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:#f7f7f4}
.wrap{max-width:900px;margin:0 auto;padding:24px}
.mobile-first{max-width:760px}
.hero{display:flex;align-items:center;gap:16px;padding:18px 0}
.emoji{font-size:52px;line-height:1}
.sub,.cn{color:#666}
.hero h1{margin:0;font-size:42px;line-height:1.1}
.tip{background:#fff;border-radius:16px;padding:15px 16px;margin:10px 0 18px;line-height:1.6;border:1px solid #eee}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.word-card{display:flex;gap:16px;align-items:center;background:#fff;padding:20px;border-radius:18px;text-decoration:none;color:inherit;box-shadow:0 2px 10px rgba(0,0,0,.06);min-height:92px;-webkit-tap-highlight-color:transparent}
.word-card:active{transform:scale(.99)}
.word-card .emoji{font-size:40px}
.word{font-size:29px;font-weight:700}
.links{margin-top:20px;display:grid;gap:12px}
.links a,.back{color:#165dcc;text-decoration:none}
.links a{background:#fff;border-radius:14px;padding:14px 16px;border:1px solid #eee}
.card{background:#fff;border-radius:20px;padding:18px;margin:16px 0;border:1px solid #eee}
.card h2{margin:0 0 12px;font-size:24px}
.sentence{padding:18px 0;border-top:1px solid #eee}
.en{font-size:25px;font-weight:650;line-height:1.35;margin-bottom:12px}
.audio-stack{display:grid;gap:10px}
.audio-player{display:flex;align-items:center;gap:14px;border-radius:18px;padding:8px;background:#f8f9fb;border:1px solid #e7e9ee}
.audio-player.playing{border-color:#9bb8ef;box-shadow:0 0 0 3px rgba(22,93,204,.08)}
.audio-player audio{display:none}
.play-main{width:86px;height:86px;min-width:86px;border:0;border-radius:50%;background:#165dcc;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 12px rgba(22,93,204,.24);font-size:31px;font-weight:700;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
.play-main.slow{background:#555}
.play-main:active{transform:scale(.94)}
.play-symbol{padding-left:4px}
.pause-symbol{font-size:24px;letter-spacing:2px}
.audio-meta{min-width:0}
.audio-title{font-size:21px;font-weight:700}
.audio-status{margin-top:5px;color:#70757d;font-size:15px}
.playback-settings{position:sticky;top:0;z-index:5;padding:14px;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);box-shadow:0 4px 18px rgba(0,0,0,.06)}
.settings-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.settings-title{font-size:21px;font-weight:750}
.stop-btn{border:1px solid #ddd;background:#fff;padding:12px 15px;border-radius:12px;font-size:16px;cursor:pointer;touch-action:manipulation}
.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.loop-row,.gap-row{display:flex;align-items:center;justify-content:space-between;gap:10px;background:#f6f7f9;border-radius:14px;padding:12px 14px;font-size:17px;min-height:50px}
.loop-row input{width:24px;height:24px;accent-color:#165dcc}
.gap-row select{font-size:17px;padding:8px 28px 8px 10px;border-radius:10px;border:1px solid #ccc;background:#fff}
.player-status{margin-top:9px;padding:8px 10px;border-radius:10px;background:#eef3fb;color:#2b4f88;font-size:14px;text-align:center}
.missing{background:#fff3cd;padding:12px;border-radius:10px;color:#6b4e00}
.no-print{display:flex;justify-content:space-between;margin-bottom:15px}.no-print button{padding:10px 15px;border-radius:10px;border:1px solid #ddd;background:#fff}
.print-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.print-card{background:#fff;border:1px solid #ddd;border-radius:12px;padding:14px;display:flex;justify-content:space-between;align-items:center;min-height:150px}
.print-word{font-size:28px;font-weight:700}.print-cn{font-size:18px;margin-top:6px}.print-hint{font-size:14px;color:#666;margin-top:18px}.qr{width:118px;height:118px;image-rendering:auto}
code{background:#eee;padding:2px 5px;border-radius:4px}
.test-audio{margin-top:14px}
@media(max-width:650px){
  .wrap{padding:14px}
  .grid,.print-grid,.settings-grid{grid-template-columns:1fr}
  .hero{padding:14px 0}.hero h1{font-size:34px}.emoji{font-size:46px}
  .word-card{padding:18px;min-height:88px}.word{font-size:28px}
  .card{padding:15px;margin:14px 0;border-radius:18px}.card h2{font-size:22px}
  .playback-settings{margin-left:-14px;margin-right:-14px;border-radius:0 0 18px 18px}
  .settings-head{align-items:flex-start}.settings-title{font-size:19px}.stop-btn{padding:11px 13px}
  .en{font-size:23px}.audio-player{padding:8px}.play-main{width:82px;height:82px;min-width:82px;font-size:30px}.audio-title{font-size:20px}
  .print-card{min-height:130px}
}
@media(max-width:380px){.play-main{width:76px;height:76px;min-width:76px}.audio-title{font-size:18px}.audio-status{font-size:14px}}
@media print{body{background:#fff}.no-print{display:none}.wrap{max-width:none;padding:0}.print-grid{gap:6mm}.print-card{break-inside:avoid;border:1px solid #999}.print{margin:0}.print h1{font-size:22px}}