:root{--bg: #e9decb;--panel: #f7f0e3;--panel-2: #f1e7d5;--text: #4a3b32;--muted: #93806d;--accent: #f5a524;--accent-strong: #d9660a;--accent-2: #e8794a;--stress: #e4552f;--syn: #2f9e6e;--ant: #d94f84;--line: #dfcfb6;--shadow: 0 10px 30px rgba(150, 110, 60, .14);--radius: 16px;font-family:system-ui,-apple-system,Segoe UI,Noto Sans TC,sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(1100px 720px at 50% -12%,#f2e6d0 0%,var(--bg) 60%),var(--bg);background-color:var(--bg);color:var(--text)}.app{max-width:560px;margin:0 auto;padding:0 16px 40px;min-height:100vh}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 4px 10px;background:linear-gradient(var(--bg),rgba(233,222,203,.85));-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:18px;color:var(--text)}.brand-mark{font-size:20px}.stage-banner{margin:4px 0 12px;padding:7px 12px;font-size:12px;color:#a9743c;background:#f5ead6;border:1px dashed #e6cfa8;border-radius:10px}.deck-info{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px;color:var(--muted);font-size:13px}.deck-name{font-weight:700;color:var(--text)}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.card-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.word-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.word{margin:0;font-size:34px;letter-spacing:.5px;color:var(--text)}.emoji{font-size:44px;line-height:1}.speak-btn{border:1px solid var(--line);background:var(--panel-2);color:var(--accent-strong);border-radius:10px;padding:4px 8px;cursor:pointer;font-size:16px;line-height:1}.speak-btn.sm{padding:2px 6px;font-size:13px;margin-left:6px}.speak-btn:hover{border-color:var(--accent);background:#f6e2c4}.syllables{margin-top:8px;font-size:15px;color:var(--muted)}.syl{font-weight:600}.syl.stressed{color:var(--stress);text-shadow:0 0 12px rgba(228,85,47,.2)}.dot{color:#cdb896;margin:0 2px}.stress-hint{margin-left:8px;font-size:11px;color:#bda684}.kk{margin-top:4px;font-size:16px;color:var(--accent-2);font-family:Segoe UI,system-ui,sans-serif}.meta-row{display:flex;gap:8px;margin:14px 0 6px}.tag{font-size:12px;padding:3px 10px;border-radius:999px;border:1px solid var(--line);background:var(--panel-2)}.tag.pos{color:var(--accent-2)}.freq-high{color:var(--accent-strong);border-color:#efc79a;background:#fbead6}.freq-mid{color:#b9820c}.freq-low{color:var(--muted)}.meaning{font-size:20px;font-weight:700;margin:6px 0 4px;color:var(--text)}.detail-grid{display:block}.section{margin-top:16px;padding-top:12px;border-top:1px solid var(--line)}.section-title{margin:0 0 8px;font-size:13px;letter-spacing:1px;color:var(--muted)}.example{margin-bottom:10px}.ex-en{font-size:16px;color:var(--text)}.ex-zh{font-size:13px;color:var(--muted);margin-top:2px}.slow{filter:grayscale(.15)}.chips,.forms{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}.chips.inline{display:inline-flex}.chip{display:inline-flex;align-items:center;gap:4px;background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:6px 8px 6px 10px;font-size:13px;color:var(--text)}.chip.word-chip{font-size:14px}.wc-en{font-weight:700}.wc-zh{color:var(--muted);font-size:12px;margin-left:2px}.form-item{display:inline-flex;align-items:center;gap:4px;background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:6px 8px 6px 10px;font-size:13px}.form-label{color:var(--muted);margin-right:4px}.form-value{font-weight:700;color:var(--text)}.rel{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:8px;font-size:15px}.rel-label{font-size:12px;padding:2px 8px;border-radius:999px;border:1px solid var(--line);background:var(--panel-2)}.rel-label.syn{color:var(--syn)}.rel-label.ant{color:var(--ant)}.morph{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.morph-part{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:6px 10px;font-size:14px;color:var(--text)}.morph-part.root{border-color:var(--accent);background:#fbead6;color:var(--accent-strong)}.morph-note{margin-top:8px;font-size:13px;color:var(--muted)}.nav{display:flex;gap:10px;margin-top:16px}.btn{flex:1;padding:12px;border-radius:12px;border:1px solid var(--line);font-size:15px;cursor:pointer;background:var(--panel);color:var(--text)}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--text);font-weight:800}.btn.ghost:hover{border-color:var(--accent);background:var(--panel-2)}.btn:disabled{opacity:.5;cursor:not-allowed}.import-help{color:var(--muted);font-size:14px;line-height:1.6}.import-box{width:100%;min-height:220px;background:var(--panel);border:1px solid var(--line);border-radius:12px;color:var(--text);padding:12px;font-family:Consolas,monospace;font-size:13px;resize:vertical}.import-actions{display:flex;gap:10px;margin-top:12px}.import-msg{margin-top:12px;padding:10px 12px;border-radius:10px;font-size:14px}.import-msg.ok{background:#e6f4ec;border:1px solid #bbe0cb;color:#2f9e6e}.import-msg.err{background:#fbe8ec;border:1px solid #f2c8d3;color:#d94f77}.empty{text-align:center;color:var(--muted);padding:40px 0}.study-home{padding-top:4px}.stat-row{display:flex;gap:10px}.stat{flex:1;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 8px;text-align:center;box-shadow:var(--shadow)}.stat-num{font-size:24px;font-weight:800;color:var(--accent-strong)}.stat-label{margin-top:2px;font-size:12px;color:var(--muted)}.mastery-bar{margin:16px 0}.mastery-label{font-size:13px;color:var(--muted);margin-bottom:6px}.bar{height:12px;background:var(--panel-2);border:1px solid var(--line);border-radius:999px;overflow:hidden}.bar.slim{height:8px;flex:1}.bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:width .3s ease}.big-cta{width:100%;padding:16px;font-size:17px;margin-top:6px}.all-clear{text-align:center;padding:28px 12px;background:var(--panel);border:1px solid var(--line);border-radius:14px;font-size:17px;font-weight:700;line-height:1.8}.all-clear span{font-size:13px;font-weight:400;color:var(--muted)}.gate-legend{margin-top:20px;font-size:12px;color:var(--muted);text-align:center}.legend-row{display:flex;justify-content:center;gap:8px;margin-top:8px;flex-wrap:wrap}.legend-item{background:var(--panel-2);border:1px solid var(--line);border-radius:999px;padding:4px 10px;color:var(--text)}.session-top{display:flex;align-items:center;gap:12px;margin-bottom:16px}.link-btn{background:none;border:none;color:var(--muted);cursor:pointer;font-size:13px;padding:4px}.link-btn:hover{color:var(--accent-strong)}.gate{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;box-shadow:var(--shadow);text-align:center}.gate-head{display:flex;justify-content:center;align-items:center;gap:8px;margin-bottom:18px}.gate-badge{font-size:13px;font-weight:700;color:var(--accent-strong);background:#fbead6;border:1px solid #efc79a;border-radius:999px;padding:4px 12px}.gate-new{font-size:12px;color:var(--syn)}.teach{padding:12px 0 20px}.teach-word{font-size:34px;font-weight:800;color:var(--text);display:flex;align-items:center;justify-content:center;gap:10px}.teach-word.small{font-size:22px}.teach-kk{margin-top:6px;font-size:16px;color:var(--accent-2)}.teach-mean{margin-top:10px;font-size:20px;font-weight:700;color:var(--text)}.big-play{background:var(--accent);border:none;color:var(--text);font-weight:800;font-size:18px;padding:16px 28px;border-radius:14px;cursor:pointer;box-shadow:var(--shadow)}.big-play:hover{filter:brightness(.97)}.quiz-word{font-size:30px;font-weight:800;color:var(--text);display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:4px}.quiz-q{font-size:15px;color:var(--muted);margin:16px 0 12px}.options{display:flex;flex-direction:column;gap:10px}.option{padding:14px;border-radius:12px;border:1px solid var(--line);background:var(--panel-2);color:var(--text);font-size:16px;cursor:pointer;transition:all .15s ease}.option:hover:not(:disabled){border-color:var(--accent);background:#f6e2c4}.option.correct{border-color:var(--syn);background:#e6f4ec;color:var(--syn);font-weight:700}.option.wrong{border-color:var(--ant);background:#fbe8ec;color:var(--ant)}.option.dim{opacity:.5}.reveal{margin:14px 0;font-size:15px;color:var(--muted)}.reveal.big{font-size:26px;font-weight:800;color:var(--text);display:flex;align-items:center;justify-content:center;gap:8px}.reveal-kk{font-size:16px;font-weight:400;color:var(--accent-2)}.reveal.ok{color:var(--syn)}.reveal.no{color:var(--ant)}.speak-prompt{font-size:26px;font-weight:800;color:var(--text);margin:8px 0 16px}.speak-prompt.small{font-size:18px;margin:10px 0}.self-rate-q{font-size:14px;color:var(--muted);margin:16px 0 10px}.rate-row{display:flex;gap:10px}.rate-yes{background:#e6f4ec;border-color:#bbe0cb;color:var(--syn);font-weight:700}.rate-no{background:#fbe8ec;border-color:#f2c8d3;color:var(--ant);font-weight:700}.spell-input{width:100%;padding:14px;font-size:20px;text-align:center;border:1px solid var(--line);border-radius:12px;background:var(--panel-2);color:var(--text);margin:8px 0 12px}.spell-input:focus{outline:none;border-color:var(--accent)}.gate-feedback{margin-top:16px}.fb{font-size:16px;font-weight:700;margin-bottom:12px}.fb.ok{color:var(--syn)}.fb.no{color:var(--ant)}.summary{text-align:center;padding:30px 16px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.summary-emoji{font-size:56px}.summary h2{margin:8px 0 20px;color:var(--text)}.summary-stats{display:flex;justify-content:center;gap:22px;font-size:15px;color:var(--muted);margin-bottom:24px}.summary-stats b{color:var(--accent-strong);font-size:20px}.summary-actions{display:flex;gap:10px}@media(min-width:760px){.app{max-width:600px}}.rate-select-row{display:flex;gap:8px;justify-content:center;margin-bottom:12px}.dictation-input{margin-top:10px}.dictation-result{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin:14px 0 6px;font-size:1.1rem;line-height:1.6}.dict-word.ok{color:var(--syn);font-weight:700}.dict-word.no{color:var(--stress);font-weight:700;text-decoration:underline}.sweep-card{text-align:center}.sweep-zh{margin:10px 0 14px}.sweep-copy{margin-top:18px;text-align:center}.sweep-copy-hint{margin-top:8px}.conversation-prompt{margin:4px 0 16px;text-align:center}.conversation-fallback{margin-top:10px;min-height:160px}.sync-badge{border:none;background:none;padding:2px 4px;font-size:15px;line-height:1;cursor:pointer;opacity:.85}.sync-badge.sync-unpaired{opacity:.45}.sync-panel{margin-top:28px;padding-top:18px;border-top:1px dashed var(--line)}.sync-title{margin:0 0 6px;font-size:16px}.sync-status{margin:0 0 4px;font-size:14px;line-height:1.6;color:var(--muted)}.sync-status.sync-ok{color:var(--syn)}.sync-status.sync-offline,.sync-status.sync-bad-key{color:var(--accent-strong)}.sync-input{width:100%;background:var(--panel);border:1px solid var(--line);border-radius:12px;color:var(--text);padding:10px 12px;font-size:14px}.sync-link-box{min-height:72px;margin-top:12px}:root{--press: #c98a1a;--tile-edge: #d9c7a8;--series-reviews: #d9660a;--series-new: #3a8fb7;--ease-out: cubic-bezier(.22, 1, .36, 1);--tabbar-h: 64px}.app{padding-bottom:calc(var(--tabbar-h) + 28px + env(safe-area-inset-bottom))}.topbar{justify-content:center;margin:0 -16px;padding:calc(12px + env(safe-area-inset-top)) 16px 10px}.brand{font-size:17px;letter-spacing:.5px}.tabbar{position:fixed;left:50%;bottom:0;transform:translate(-50%);z-index:20;width:100%;max-width:600px;display:grid;grid-template-columns:repeat(6,1fr);padding:6px 6px calc(6px + env(safe-area-inset-bottom));background:#f7f0e3f0;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:2px solid var(--line)}.tabbar-btn{display:flex;flex-direction:column;align-items:center;gap:2px;min-height:52px;padding:6px 0 4px;border:2px solid transparent;border-radius:14px;background:none;color:var(--muted);font-size:11px;font-weight:700;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease}.tabbar-icon{font-size:21px;line-height:1;filter:grayscale(.6);opacity:.75;transition:transform .25s var(--ease-out),filter .2s ease,opacity .2s ease}.tabbar-btn.active{color:var(--accent-strong);background:#fbe6c2;border-color:#f3cf8f}.tabbar-btn.active .tabbar-icon{filter:none;opacity:1;transform:translateY(-1px) scale(1.12)}.btn{border-width:2px;border-radius:14px;font-weight:700;box-shadow:0 4px 0 var(--tile-edge);transition:transform .08s ease,box-shadow .08s ease,filter .15s ease}.btn.primary{box-shadow:0 4px 0 var(--press)}.btn:active:not(:disabled){transform:translateY(3px);box-shadow:0 1px 0 var(--tile-edge)}.btn.primary:active:not(:disabled){box-shadow:0 1px 0 var(--press)}.btn.primary:hover:not(:disabled){filter:brightness(1.04)}.btn.small{flex:none;padding:7px 12px;font-size:13px;border-radius:12px;box-shadow:0 3px 0 var(--press)}.rate-yes{box-shadow:0 4px #a9d6bc}.rate-no{box-shadow:0 4px #ecb9c7}.big-play{box-shadow:0 5px 0 var(--press);transition:transform .08s ease,box-shadow .08s ease}.big-play:active{transform:translateY(3px);box-shadow:0 2px 0 var(--press)}.option{border-width:2px;border-radius:14px;font-weight:600;box-shadow:0 3px 0 var(--tile-edge)}.option:active:not(:disabled){transform:translateY(2px);box-shadow:0 1px 0 var(--tile-edge)}.option.correct{box-shadow:0 3px #a9d6bc;animation:pop .35s var(--ease-out)}.option.wrong{box-shadow:0 3px #ecb9c7;animation:shake .35s ease}.card,.gate,.summary,.stat,.all-clear,.panel{border:2px solid var(--line);border-radius:20px;box-shadow:0 4px 0 var(--tile-edge),var(--shadow)}.stat-num,.hero-num,.chip-stat b,.gate-ring-num b,.summary-stats b{font-variant-numeric:tabular-nums}.bar{height:14px;border-width:2px}.bar.slim{height:12px}.bar-fill{border-radius:999px;transition:width .5s var(--ease-out)}.gate-badge{border-radius:999px}.fb{animation:pop .35s var(--ease-out)}.summary-emoji{animation:bounce-in .6s var(--ease-out)}.main>*{animation:fade-up .35s var(--ease-out) both}.my{display:flex;flex-direction:column;gap:14px}.panel{background:var(--panel);padding:16px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}.panel-title{margin:0;font-size:16px}.panel-meta{font-size:12px;color:var(--muted)}.panel-note{margin:10px 0 0;font-size:12px;color:var(--muted);line-height:1.5}.ring{position:relative;flex:none}.ring svg{display:block}.ring-track{fill:none;stroke:var(--panel-2)}.ring-fill{fill:none;stroke:var(--accent);stroke-linecap:round;animation:ring-grow 1s var(--ease-out) both}.ring-center{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center}.hero{display:flex;align-items:center;gap:18px;background:linear-gradient(135deg,#fbefd9 0%,var(--panel) 60%)}.hero .ring-fill{stroke:var(--accent-strong)}.hero-num{font-size:38px;font-weight:900;line-height:1;color:var(--accent-strong)}.hero-unit{margin-top:4px;font-size:12px;color:var(--muted)}.hero-side{min-width:0}.hero-title{font-size:17px;font-weight:800}.hero-goal{margin-top:2px;font-size:12px;color:var(--muted)}.hero-break{list-style:none;margin:10px 0 0;padding:0;font-size:13px;line-height:1.8}.hero-break b{display:inline-block;min-width:2.2em;color:var(--text)}.hero-break .muted{color:var(--muted)}.chip-row{display:flex;gap:10px}.chip-stat{flex:1;display:flex;flex-wrap:wrap;align-items:baseline;gap:4px;padding:12px 14px;background:var(--panel);border:2px solid var(--line);border-radius:16px;box-shadow:0 3px 0 var(--tile-edge);font-size:13px;color:var(--muted)}.chip-stat b{font-size:22px;color:var(--accent-strong)}.chip-icon{font-size:18px}.chip-sub{flex-basis:100%;font-size:11px}.seg{display:flex;padding:3px;background:var(--panel-2);border:2px solid var(--line);border-radius:999px}.seg-btn{border:none;background:none;padding:5px 10px;border-radius:999px;font-size:12px;font-weight:700;color:var(--muted);cursor:pointer}.seg-btn.active{background:var(--panel);color:var(--text);box-shadow:0 1px 3px #966e3c33}.curve-readout{min-height:20px;font-size:13px;font-weight:600;color:var(--text)}.curve{position:relative;display:flex;align-items:stretch;height:150px;margin-top:8px;--series: var(--series-reviews)}.curve.curve-newWords{--series: var(--series-new)}.curve-grid{position:absolute;left:0;right:0;top:18px;border-top:1px dashed var(--line);pointer-events:none}.curve-grid span{position:absolute;right:0;top:-16px;font-size:10px;color:var(--muted)}.curve-col{flex:1;min-width:0;display:flex;flex-direction:column;align-items:stretch;padding:0 1px;border:none;background:none;cursor:pointer;border-radius:6px}.curve-col.active{background:#f5a5241f}.curve-bar-wrap{position:relative;flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;margin-top:18px;border-bottom:1px solid var(--line)}.curve-bar{width:100%;max-width:22px;background:var(--series);border-radius:4px 4px 0 0;transform-origin:bottom;animation:bar-grow .6s var(--ease-out) both}.curve-col.active .curve-bar{filter:brightness(1.12)}.curve-val{font-size:10px;font-weight:700;color:var(--text);margin-bottom:2px}.curve-day{height:16px;margin-top:4px;font-size:10px;color:var(--muted);text-align:center;white-space:nowrap}.curve-table{margin-top:10px;font-size:12px;color:var(--muted)}.curve-table summary{cursor:pointer}.curve-table table{width:100%;margin-top:6px;border-collapse:collapse;color:var(--text)}.curve-table th,.curve-table td{padding:4px 6px;text-align:right;border-bottom:1px solid var(--line)}.curve-table th:first-child,.curve-table td:first-child{text-align:left}.gate-rings{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.gate-ring{display:flex;flex-direction:column;align-items:center;text-align:center}.gate-ring-icon{font-size:24px}.gate-ring-label{margin-top:6px;font-size:13px;font-weight:800}.gate-ring-num{font-size:12px;color:var(--muted)}.gate-ring-num b{font-size:15px;color:var(--accent-strong)}.gate-ring-sub{font-size:11px;color:var(--muted)}.weak-empty{padding:14px 0 6px;text-align:center;color:var(--muted);font-size:14px}.weak-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.weak-row{width:100%;display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--panel-2);border:2px solid var(--line);border-radius:14px;box-shadow:0 3px 0 var(--tile-edge);color:var(--text);text-align:left;cursor:pointer;transition:transform .08s ease,box-shadow .08s ease,border-color .15s ease}.weak-row:hover{border-color:var(--accent)}.weak-row:active{transform:translateY(2px);box-shadow:0 1px 0 var(--tile-edge)}.weak-emoji{font-size:22px}.weak-word{flex:1;min-width:0;display:flex;flex-direction:column}.weak-word b{font-size:16px}.weak-word span{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.weak-lapses{font-size:12px;font-weight:700;color:var(--ant);white-space:nowrap}.weak-go{font-size:13px;font-weight:800;color:var(--accent-strong);white-space:nowrap}.badges{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.badge{display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 4px;border:2px dashed var(--line);border-radius:16px;text-align:center;color:var(--muted)}.badge-icon{font-size:28px;filter:grayscale(1);opacity:.4}.badge-name{font-size:12px;font-weight:700}.badge-hint{font-size:10px}.badge.earned{border-style:solid;border-color:#f3cf8f;background:#fbefd9;box-shadow:0 3px #ecc98a;color:var(--text);animation:pop .45s var(--ease-out) both}.badge.earned .badge-icon{filter:none;opacity:1}@media(min-width:520px){.badges{grid-template-columns:repeat(4,1fr)}}@media(max-width:380px){.hero{flex-direction:column;text-align:center}.tabbar-label{font-size:10px}}@keyframes fade-up{0%{opacity:0;transform:translateY(8px)}}@keyframes ring-grow{0%{stroke-dashoffset:var(--ring-c)}}@keyframes bar-grow{0%{transform:scaleY(0)}}@keyframes pop{0%{transform:scale(.92)}60%{transform:scale(1.04)}to{transform:scale(1)}}@keyframes bounce-in{0%{transform:scale(.3);opacity:0}60%{transform:scale(1.15);opacity:1}to{transform:scale(1)}}@keyframes shake{25%{transform:translate(-4px)}75%{transform:translate(4px)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}