:root{--bg:#f6f7fb;--card:#fff;--ink:#17171d;--muted:#858590;--line:#e8e8ef;--p:#705cf6;--p2:#8e7cff;--green:#2e9b70;--amber:#d8892b;--red:#d94f5d;--shadow:0 18px 50px rgba(35,29,75,.09)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Hiragino Sans","Yu Gothic",sans-serif}button,input{font:inherit}button{cursor:pointer}#app{max-width:760px;margin:auto;min-height:100dvh;padding:env(safe-area-inset-top) 16px calc(100px + env(safe-area-inset-bottom))}.topbar{display:flex;justify-content:space-between;align-items:center;padding:15px 2px}.topbar small{font-size:8px;letter-spacing:1.8px;color:#aaa;font-weight:900}.topbar h1{font-size:23px;margin:3px 0}.badge{border:0;border-radius:999px;padding:8px 11px;font-size:10px;font-weight:850}.badge.demo{background:#fff0e1;color:#a7641e}.badge.live{background:#e8f7f0;color:#267b5d}.screen{display:none}.screen.active{display:block;animation:fade .18s ease}@keyframes fade{from{opacity:.45;transform:translateY(5px)}}.hero{border-radius:30px;padding:24px;background:linear-gradient(135deg,#6652eb,#927dff);color:#fff;min-height:190px;display:flex;align-items:end;justify-content:space-between;box-shadow:0 22px 60px rgba(104,84,235,.3)}.hero-kicker{font-size:10px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.2);padding:6px 9px;border-radius:999px}.hero h2{font-size:25px;line-height:1.28;margin:14px 0 8px}.hero p{font-size:11px;opacity:.86}.hero button{border:0;background:#fff;color:var(--p);font-weight:900;border-radius:18px;padding:13px 15px;white-space:nowrap}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin:13px 0 24px}.stats>div{background:#fff;border:1px solid var(--line);border-radius:18px;text-align:center;padding:13px}.stats b{display:block;font-size:20px}.stats span{font-size:10px;color:var(--muted)}.section-head{display:flex;justify-content:space-between;align-items:end;margin:20px 2px 10px}.section-head b{display:block;font-size:17px}.section-head small{color:var(--muted);font-size:10px}.section-head button{border:0;background:none;color:var(--p);font-weight:800;font-size:11px}.lesson-card{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:23px;padding:15px;box-shadow:var(--shadow)}.lesson-no{width:48px;height:48px;border-radius:15px;background:#efedff;color:var(--p);display:grid;place-items:center;font-weight:900}.grow{flex:1}.lesson-card b,.lesson-card span{display:block}.lesson-card span{font-size:10px;color:var(--muted);margin-top:4px}.lesson-card em{font-size:25px;color:#bbb;font-style:normal}.progress,.thin-progress{height:6px;background:#eeeef3;border-radius:99px;overflow:hidden}.progress{margin-top:10px}.progress i,.thin-progress i{display:block;height:100%;background:var(--p);border-radius:99px;width:0}.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}.mode-grid button{background:#fff;border:1px solid var(--line);border-radius:21px;padding:16px;text-align:left}.mode-grid i{font-style:normal;font-size:24px}.mode-grid b,.mode-grid span{display:block}.mode-grid b{font-size:14px;margin-top:13px}.mode-grid span{font-size:10px;color:var(--muted);margin-top:4px;line-height:1.4}.subhead{display:grid;grid-template-columns:44px 1fr 44px;align-items:center;text-align:center;margin:8px 0 15px}.subhead>button{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;font-size:25px}.subhead .gear{font-size:15px}.subhead b,.subhead small{display:block}.subhead b{font-size:16px}.subhead small{font-size:10px;color:var(--muted);margin-top:2px}.section-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.section-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:16px;text-align:left}.section-card .num{font-size:10px;color:var(--p);font-weight:900}.section-card b{display:block;font-size:15px;margin-top:20px}.section-card span{display:block;color:var(--muted);font-size:10px;margin-top:4px}.section-card em{display:inline-block;margin-top:12px;font-style:normal;font-size:9px;padding:6px 8px;border-radius:999px;background:#f1efff;color:var(--p)}.note{font-size:10px;line-height:1.6;color:#765f2e;background:#fff9e8;border:1px solid #f2dfaa;padding:13px;border-radius:16px;margin-top:12px}.item-list{display:flex;flex-direction:column;gap:9px}.item{background:#fff;border:1px solid var(--line);border-radius:19px;padding:13px;display:flex;align-items:center;gap:11px}.item-no{width:37px;height:37px;border-radius:12px;background:#f1efff;color:var(--p);display:grid;place-items:center;font-size:10px;font-weight:900}.item .grow b{font-size:13px;line-height:1.5}.item .grow small{font-size:9px;color:var(--muted);display:block;margin-top:3px}.item button{border:0;background:#f0edff;color:var(--p);font-weight:900;border-radius:11px;padding:9px 10px;font-size:10px}.audio-ok{color:var(--green)!important}.audio-tts{color:var(--amber)!important}.practice-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:23px 18px;text-align:center;box-shadow:var(--shadow);margin-top:13px}.label{font-size:8px;letter-spacing:2px;color:#aaa;font-weight:900}.speaker{display:inline-block;margin:12px auto 0;background:#18181d;color:#fff;border-radius:10px;padding:5px 8px;font-size:10px}.hidden{display:none!important}.jp{font-size:29px;font-weight:800;line-height:1.85;margin:15px 0 5px}.jp ruby rt{font-size:.42em;color:#777}.cn{font-size:12px;color:var(--muted)}.audio-row{display:flex;justify-content:center;gap:7px;margin-top:17px}.audio-row button{border:0;background:#f1efff;color:var(--p);border-radius:11px;padding:9px 10px;font-size:10px;font-weight:800}.audio-row .source{background:#f2f2f5;color:#888;pointer-events:none}.record-zone{text-align:center;padding:20px 0 5px}.record-zone canvas{width:100%;height:60px;opacity:.35}.mic{width:78px;height:78px;border:8px solid #e8e4ff;border-radius:50%;background:linear-gradient(145deg,var(--p),var(--p2));color:#fff;font-size:29px;box-shadow:0 13px 35px rgba(110,90,240,.32)}.mic.recording{background:linear-gradient(145deg,#e96672,#c94150);border-color:#ffe5e8;animation:pulse 1s infinite}@keyframes pulse{50%{transform:scale(1.05)}}.record-zone b,.record-zone small{display:block}.record-zone b{font-size:12px;margin-top:9px}.record-zone small{font-size:9px;color:var(--muted);margin-top:3px}.record-zone.compact{padding-top:26px}.result{margin-top:12px}.score-line{background:#fff;border:1px solid var(--line);border-radius:22px;padding:15px;display:flex;align-items:center;gap:15px}.ring{width:88px;height:88px;border-radius:50%;display:grid;place-items:center;position:relative;background:conic-gradient(var(--p) 0deg,#eee 0)}.ring:after{content:"";position:absolute;inset:9px;border-radius:50%;background:#fff}.ring strong,.ring span{position:relative;z-index:1}.ring strong{font-size:24px}.ring span{font-size:8px;color:var(--muted);margin-top:-23px}.score-line>div:last-child{flex:1}.score-line b{font-size:17px}.score-line p{font-size:10px;color:var(--muted);line-height:1.45}.azure-error{font-size:10px;color:var(--red);line-height:1.5;margin:6px 0 0}.metrics{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:8px}.metrics>div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:11px;display:grid;grid-template-columns:1fr auto}.metrics span{font-size:9px;color:var(--muted)}.metrics b{font-size:16px}.metrics i{grid-column:1/-1;height:4px;background:#eee;border-radius:99px;overflow:hidden;margin-top:7px}.metrics em{display:block;height:100%;background:var(--p);width:0}.pitch-card{background:#fff;border:1px solid var(--line);border-radius:19px;padding:12px;margin-top:8px}.pitch-card b,.pitch-card small{display:block}.pitch-card b{font-size:11px}.pitch-card small{font-size:8px;color:var(--muted);margin-top:2px}.pitch-card canvas{width:100%;height:130px;margin-top:8px;background:#fafafd;border-radius:12px}.pitch-card p{font-size:9px;color:var(--muted);margin:6px 0 0;line-height:1.5}.words{display:flex;gap:6px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);border-radius:17px;padding:11px;margin-top:8px}.word{font-size:10px;padding:7px 8px;border-radius:10px;background:#f3f3f6}.word.good{background:#e9f7f0;color:#247956}.word.warn{background:#fff2e4;color:#a96620}.word.bad{background:#fff0f1;color:#af3c48}.ab{background:#1d1d22;color:#fff;border-radius:17px;padding:11px;margin-top:8px;display:flex;align-items:center;gap:6px}.ab span{font-size:9px;margin-right:auto}.ab button{border:0;background:#33333a;color:#fff;border-radius:9px;padding:7px 8px;font-size:9px}.actions{display:grid;grid-template-columns:1fr 1.4fr;gap:8px;margin-top:8px}.actions button,.big-primary{border:0;border-radius:14px;padding:13px;font-weight:900;background:#e9e9ef}.actions .primary,.big-primary{background:var(--p);color:#fff}.recite-help{font-size:11px;line-height:1.6;color:#685b8f;background:#f1efff;border-radius:16px;padding:12px;margin-bottom:10px}.conversation-full{display:flex;flex-direction:column;gap:8px}.conv-line{background:#fff;border:1px solid var(--line);border-radius:17px;padding:12px;display:grid;grid-template-columns:30px 1fr 34px;gap:9px;align-items:center}.conv-line .who{width:28px;height:28px;border-radius:9px;background:#1c1c21;color:#fff;display:grid;place-items:center;font-size:10px;font-weight:900}.conv-line b{font-size:13px;line-height:1.6}.conv-line small{display:block;color:var(--muted);font-size:9px;margin-top:2px}.conv-line button{border:0;background:#f1efff;color:var(--p);border-radius:10px;width:32px;height:32px}.big-primary{width:100%;margin-top:13px}.recite-dots{display:flex;gap:6px;justify-content:center;margin:4px 0 12px}.recite-dots i{width:24px;height:7px;border-radius:99px;background:#ddd}.recite-dots i.current{background:var(--p)}.recite-dots i.done{background:var(--green)}.recite-dots i.skip{background:var(--amber)}.memory-card{background:#fff;border:1px solid var(--line);border-radius:27px;padding:24px 18px;text-align:center;box-shadow:var(--shadow)}.memory-speaker{width:38px;height:38px;border-radius:12px;background:#1d1d22;color:#fff;display:grid;place-items:center;margin:auto;font-weight:900}.memory-prompt{font-size:26px;letter-spacing:4px;font-weight:850;min-height:105px;display:flex;align-items:center;justify-content:center}.memory-hint{min-height:44px;color:var(--p);font-size:12px;font-weight:800;line-height:1.7}.memory-tools{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px}.memory-tools button{border:0;background:#f1efff;color:var(--p);border-radius:11px;padding:10px 4px;font-size:9px;font-weight:900}.memory-tools .skip{background:#fff0f1;color:var(--red)}.recite-result{margin-top:8px;background:#fff;border:1px solid var(--line);border-radius:17px;padding:13px;font-size:11px;line-height:1.6}.recite-result.pass{border-color:#bce7d4;background:#eefaf5}.recite-result.fail{border-color:#f2ccd0;background:#fff5f6}.review-list{display:flex;flex-direction:column;gap:8px}.review{background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;display:flex;gap:10px;align-items:center}.review .grow b{font-size:12px}.review .grow small{font-size:9px;color:var(--muted)}.review button{border:0;background:#f1efff;color:var(--p);border-radius:10px;padding:8px 9px;font-size:9px;font-weight:900}.empty{text-align:center;color:var(--muted);padding:70px 20px}.empty span{font-size:40px}.empty b{display:block;color:var(--ink);margin:8px}.empty p{font-size:10px}.settings-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:15px;margin-bottom:10px}.settings-card h3{font-size:13px;margin:0 0 10px}.settings-card>label{display:flex;justify-content:space-between;font-size:12px;font-weight:800}.settings-card input[type=range]{width:100%;accent-color:var(--p);margin:13px 0}.toggle{border-top:1px solid var(--line);padding-top:12px;display:flex;justify-content:space-between;align-items:center}.toggle span b,.toggle span small{display:block}.toggle span b{font-size:11px}.toggle span small{font-size:9px;color:var(--muted)}.toggle input{accent-color:var(--p)}.formula,.settings-card p,.settings-card code{font-size:10px;line-height:1.65;color:var(--muted)}.settings-card code{display:block;background:#f4f4f7;border-radius:10px;padding:10px}.outline{border:1px solid var(--line);background:#fff;border-radius:11px;padding:9px 10px;font-size:10px;font-weight:800}.bottom-nav{position:fixed;z-index:20;left:50%;bottom:max(10px,env(safe-area-inset-bottom));transform:translateX(-50%);width:min(728px,calc(100% - 22px));background:rgba(255,255,255,.91);backdrop-filter:blur(20px);border:1px solid rgba(220,220,228,.85);border-radius:22px;padding:7px;display:grid;grid-template-columns:repeat(4,1fr);box-shadow:0 15px 45px rgba(30,27,55,.15)}.bottom-nav button{border:0;background:none;border-radius:14px;color:#999;padding:7px;font-size:18px}.bottom-nav span{display:block;font-size:9px;margin-top:1px}.bottom-nav button.active{background:#f0edff;color:var(--p);font-weight:900}.toast{position:fixed;z-index:60;left:50%;bottom:105px;transform:translate(-50%,15px);opacity:0;background:#1e1e23;color:#fff;padding:10px 13px;border-radius:12px;font-size:10px;max-width:calc(100% - 36px);text-align:center;transition:.2s;pointer-events:none}.toast.show{opacity:1;transform:translate(-50%,0)}.modal{position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.35);display:flex;align-items:end;justify-content:center}.modal-card{background:#fff;width:min(760px,100%);max-height:80vh;overflow:auto;border-radius:26px 26px 0 0;padding:20px}.modal-card>button{float:right;border:0;background:#eee;border-radius:50%;width:32px;height:32px}.modal-card h3{margin-top:8px}@media(min-width:680px){#app{padding-left:24px;padding-right:24px}.section-grid{grid-template-columns:repeat(3,1fr)}.mode-grid{grid-template-columns:repeat(4,1fr)}}
.unlocked{display:flex;flex-direction:column;gap:6px;margin-top:9px}.unlocked-line{background:#edf9f3;border:1px solid #c5ead8;color:#267657;border-radius:13px;padding:9px 10px;font-size:10px;line-height:1.5}.unlocked-line.skip{background:#fff6e9;border-color:#f2d6ac;color:#9a6625}
.home-lesson-list{display:flex;flex-direction:column;gap:10px}.home-lesson-list .lesson-card{width:100%;cursor:pointer}.home-lesson-list .lesson-card.selected{outline:2px solid #c9c2ff}.lesson-switcher{display:flex;align-items:center;justify-content:space-between;background:#fff;border:1px solid var(--line);border-radius:16px;padding:11px 13px;margin-bottom:11px;font-size:11px;font-weight:800}.lesson-switcher select{max-width:65%;border:0;background:#f4f3f8;border-radius:10px;padding:8px;color:var(--ink)}.manager-fab{position:fixed;right:max(16px,calc((100vw - 760px)/2 + 18px));bottom:96px;z-index:18;text-decoration:none;background:#1d1d23;color:#fff;border-radius:999px;padding:10px 12px;font-size:9px;font-weight:800;box-shadow:0 10px 30px rgba(0,0,0,.16)}.subhead a.gear{display:grid;place-items:center;text-decoration:none;color:var(--purple);font-size:10px;font-weight:850;background:#f0edff;border-radius:11px;height:36px;padding:0 8px}

/* ===== V5: pitch dictionary + adaptive review ===== */
.pitch-lexicon{margin-top:15px;display:flex;flex-direction:column;gap:8px;text-align:left}.pitch-chip{border:1px solid #e8e6f3;background:#faf9ff;border-radius:15px;padding:10px 12px;display:flex;justify-content:space-between;gap:12px;align-items:center}.pitch-chip>div:first-child strong,.pitch-chip>div:first-child small{display:block}.pitch-chip strong{font-size:14px}.pitch-chip small{font-size:9px;color:#88858f;margin-top:2px}.accent-type{display:block;font-size:9px;color:#686572}.accent-type b{color:#705cf6;font-size:11px}.mini-pitch{display:flex;gap:5px;align-items:end;height:31px;justify-content:flex-end}.mini-pitch i{font-style:normal;font-size:10px;position:relative;padding-top:10px}.mini-pitch i:before{content:"";position:absolute;width:6px;height:6px;border-radius:50%;background:#705cf6;left:50%;transform:translateX(-50%)}.mini-pitch i.h:before{top:0}.mini-pitch i.l:before{top:9px}.pitch-advice{margin-top:9px;border-radius:15px;padding:12px 13px;background:#fff8e9;border:1px solid #f1dfad;color:#665526;font-size:11px;line-height:1.65}.review-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:11px}.review-summary>div{background:#fff;border:1px solid #e9e8ef;border-radius:16px;text-align:center;padding:12px}.review-summary b{display:block;font-size:19px}.review-summary span{font-size:9px;color:#8b8993}.review .grow em{display:block;font-style:normal;font-size:9px;color:#705cf6;margin-top:5px}
@media(max-width:480px){.pitch-chip{align-items:flex-start;flex-direction:column}.mini-pitch{justify-content:flex-start}}
/* Full-lesson playback */
.play-all-bar{display:flex;align-items:center;gap:10px;margin-top:12px}
.play-all-bar button{border:0;background:var(--p);color:#fff;font-weight:900;border-radius:14px;padding:12px 18px;font-size:13px;cursor:pointer}
.play-all-bar button.playing{background:var(--red)}
.play-all-bar span{font-size:10px;color:var(--muted)}
.playback-bar{position:fixed;bottom:90px;left:50%;transform:translateX(-50%);z-index:25;background:#1d1d23;color:#fff;border-radius:999px;padding:10px 18px;display:flex;align-items:center;gap:12px;font-size:11px;font-weight:800;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.playback-bar button{border:0;background:var(--red);color:#fff;border-radius:999px;padding:7px 14px;font-weight:900;cursor:pointer}
.install-share-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:14px 0}
.install-share-row button{border:0;border-radius:16px;padding:16px 10px;font-size:15px;font-weight:900;cursor:pointer;transition:transform .15s,box-shadow .15s}
.install-share-row button:active{transform:scale(.97)}
.big-install-btn{background:linear-gradient(135deg,#6652eb,#927dff);color:#fff;box-shadow:0 10px 26px rgba(104,84,235,.35)}
.big-share-btn{background:#fff;color:#4a3cc7;border:2px solid #d5cdfa!important}
.topbar .badge{padding:9px 12px;font-size:12px}
@media(max-width:380px){.install-share-row{grid-template-columns:1fr}}
.center-badge{display:inline-block;color:#927dff;text-decoration:none;font-weight:800;letter-spacing:.02em}
.center-badge:hover{text-decoration:underline}