/* Generated from the native application styles. */
view,scroll-view{display:block}
button,input{font-family:inherit}
button,input{appearance:none;border:0}
body{background:#fff;color:#101114;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif;font-size:3.73333333vw}view,button,input{box-sizing:border-box}button{margin:0;padding:0;background:#f5f5f7;color:#101114;font-size:3.46666667vw;line-height:1.4;border-radius:3.73333333vw;display:flex;align-items:center;justify-content:center;min-height:10.66666667vw}button::after{border:0}button[disabled]{opacity:.35}text{line-height:1.5}.page{padding:3.73333333vw 5.06666667vw 24vw}.eyebrow{font-size:2.53333333vw;letter-spacing:0.13333333vw;color:#676971}.heading{font-size:5.6vw;line-height:1.4;font-weight:700;margin:1.86666667vw 0 3.46666667vw}.greeting{display:flex;align-items:center;justify-content:space-between}.greeting .heading{font-size:4.66666667vw;margin:1.06666667vw 0}.avatar{border-radius:50%;width:9.06666667vw;height:9.06666667vw;display:flex;align-items:center;justify-content:center;background:#eff7a6}.countdown{font-size:3.06666667vw;margin:1.86666667vw 0 3.2vw}.bold{font-weight:700}.muted{font-size:3.06666667vw;color:#676971}.hero{background:#a8bfff;border-radius:9.06666667vw;position:relative;min-height:55.73333333vw;overflow:hidden;padding:4.26666667vw}.hero-copy{position:relative;z-index:1}.hero-title{font-size:7.73333333vw;font-weight:750;line-height:1.16;margin:2.26666667vw 0}.hero-sub{font-size:2.8vw}.listener{position:absolute;right:-7.33333333vw;bottom:1.33333333vw;width:49.33333333vw;height:48vw}.black{background:#101114;color:#fff;border-radius:13.33333333vw;min-height:11.2vw;font-weight:600;padding:1.6vw 3.46666667vw}.hero-btn{margin-top:3.2vw;max-width:43.33333333vw;font-size:3.33333333vw}.chips{display:flex;gap:1.6vw;margin:3.2vw 0}.chips button{flex:1;font-size:3.06666667vw;min-height:8.8vw;border-radius:6.66666667vw}.section-head{display:flex;justify-content:space-between;align-items:center;font-weight:650;font-size:4.13333333vw;margin:3.73333333vw 0 2.93333333vw}.section-head .muted{font-weight:400;font-size:2.66666667vw}.training-grid{display:flex;gap:2.66666667vw}.tile{width:50%;min-height:48vw;border-radius:8vw;padding:3.73333333vw}.purple{background:#d5b6ff}.lemon{background:#eff7a6}.circle{width:7.73333333vw;height:7.73333333vw;border-radius:50%;background:#101114;color:white;display:flex;align-items:center;justify-content:center;font-size:4.8vw}.tile-title{font-size:4.53333333vw;font-weight:700;margin:3.2vw 0 1.33333333vw}.tile text{font-size:3.2vw}.tile-foot{font-size:2.93333333vw;margin-top:4.26666667vw}.stats-strip{background:#f5f5f7;display:flex;border-radius:5.33333333vw;padding:3.2vw 0.8vw;margin:3.2vw 0}.stats-strip>view{flex:1;text-align:center;display:flex;flex-direction:column;gap:0.8vw}.stats-strip b{font-size:4.8vw;font-weight:700}.stats-strip text{font-size:2.8vw;color:#676971}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:#fff;display:flex;justify-content:space-around;padding:2.13333333vw 0 calc(1.6vw + env(safe-area-inset-bottom));border-top:0.13333333vw solid #f0f0f2;z-index:20}.nav-item{display:flex;align-items:center;flex-direction:column;font-size:2.66666667vw;color:#999;gap:0.53333333vw;min-width:13.33333333vw}.nav-symbol{font-size:4.53333333vw;line-height:1}.active{color:#101114}.nav-dot{height:0.93333333vw;width:0.93333333vw;border-radius:50%;background:transparent}.active .nav-dot{background:#101114}.row{display:flex;align-items:center;justify-content:space-between;border-bottom:0.13333333vw solid #eee;padding:3.73333333vw 0;gap:2.13333333vw;min-height:14.66666667vw}.row-title{font-size:3.73333333vw;font-weight:600;margin-bottom:1.06666667vw}.lesson-hero{background:#d5b6ff;margin-top:3.73333333vw}.lesson-hero .black{margin-top:4vw}.empty,.copy,.quiet{color:#676971;line-height:1.8;font-size:3.33333333vw;margin:3.46666667vw 0}.quiet{font-size:2.93333333vw}.back{background:transparent;justify-content:flex-start;font-size:3.33333333vw;min-height:8vw;margin-bottom:2vw}.answer-header{display:flex;align-items:center;justify-content:space-between;font-size:3.2vw;margin-bottom:2vw}.answer-header .back{margin:0}.small{font-size:2.93333333vw;min-height:7.2vw;padding:1.06666667vw 2.13333333vw}.question-heading{display:flex;justify-content:space-between;align-items:center;font-size:5.06666667vw;font-weight:700;margin:2.66666667vw 0 3.73333333vw}.question-heading .muted{font-weight:400}.stems{display:flex;gap:1.86666667vw;margin:2.66666667vw 0 3.2vw}.audio-btn{background:#f5f5f7;border-radius:3.33333333vw;min-height:11.2vw;flex:1;font-size:3.46666667vw}.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.6vw}.last-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1.6vw;margin-top:1.6vw}.choice{border:0.26666667vw solid #e9e9ed;background:#fff;border-radius:3.33333333vw;min-height:10.4vw;padding:1.6vw 2.93333333vw;justify-content:space-between;font-size:3.46666667vw}.last-grid .choice{padding:1.33333333vw 1.6vw;font-size:3.2vw;justify-content:center}.choice.selected,.selected{background:#e6eaff;border-color:#a8bfff}.choice.correct{border-color:#51ad7d;background:#e6f6ec}.choice.wrong{border-color:#e38a8a;background:#ffeded}.submit{margin-top:3.46666667vw;width:100%}.comparison-row{display:flex;gap:1.6vw;padding:1.6vw 0}.candidate-audio{display:flex;gap:1.06666667vw;flex:1}.comparison-row>.choice{min-width:32vw;justify-content:center}.comparison .audio-btn{font-size:3.06666667vw;min-height:12vw}.feedback{font-size:3.33333333vw;color:#aa5b29;margin-top:2.66666667vw;display:flex;justify-content:space-between}.feedback.good{color:#27845b}.feedback text{font-size:2.93333333vw;text-decoration:underline}.audio-error{background:#fff0e9;color:#9b461f;padding:2.93333333vw;border-radius:3.2vw;font-size:3.06666667vw;margin-top:2.66666667vw}.cover{background:#eff7a6;border-radius:8vw;padding:5.33333333vw 3.73333333vw;margin:2.66666667vw 0 4vw}.cover .heading{font-size:5.6vw}.score{font-size:16vw;font-weight:700;margin:3.2vw 0}.score text{font-size:4.26666667vw}.exam-player{background:#f5f5f7;border-radius:5.33333333vw;padding:2.93333333vw;display:flex;align-items:center;justify-content:space-between;gap:2.66666667vw;margin:3.2vw 0}.exam-player .black{font-size:3.2vw}.timer{font-variant-numeric:tabular-nums}.exam-controls{display:flex;gap:1.6vw;margin-top:3.46666667vw}.exam-controls button{flex:1;font-size:3.06666667vw}.answer-card{display:grid;grid-template-columns:repeat(5,1fr);gap:1.86666667vw;margin:2.66666667vw 0 4.66666667vw}.answer-card button{min-height:11.33333333vw}.card-group{margin-top:4vw}.field{display:block;margin:4vw 0;font-size:3.33333333vw}input,.input{background:#f5f5f7;min-height:12vw;padding:3.2vw;margin-top:1.86666667vw;border-radius:3.2vw;font-size:3.46666667vw}.resume{background:#f5f5f7;padding:2.66666667vw;border-radius:3.46666667vw;font-size:3.2vw}.review-row{border-bottom:0.13333333vw solid #eee;padding:3.2vw 0;font-size:3.33333333vw}.answer-page{padding-top:1.6vw}
/* Explicit native button geometry overrides WeChat's built-in auto margins. */
button{width:auto;max-width:100%;min-width:0;margin-left:0!important;margin-right:0!important;font-weight:500;flex-shrink:1}
.icon{width:4.8vw;height:4.8vw;display:block}.nav-icon{width:5.06666667vw;height:5.06666667vw;display:block}
.hero-btn{width:43.33333333vw;max-width:43.33333333vw;justify-content:center}.hero-title{font-size:7.73333333vw;line-height:1.12}.hero-copy{max-width:52vw}.hero-sub{font-size:2.53333333vw;white-space:nowrap}.listener{width:45.33333333vw;right:-7.33333333vw;bottom:1.06666667vw}.tile-desc{font-size:3.06666667vw;line-height:1.7}.tile{padding:3.46666667vw;min-width:0}.stats-strip .bold{font-size:4.8vw;color:#101114;font-weight:700}
.answer-header{gap:2.13333333vw;white-space:nowrap}.answer-header .back{flex:none}.answer-header>.small{flex:none;width:auto;min-width:20vw}.answer-header>text{flex:none;font-size:3.06666667vw}
.choice-grid{display:flex;flex-wrap:wrap;gap:1.6vw;min-width:0;width:100%}.choice-grid .choice{width:calc((100% - 1.6vw) / 2);flex:0 0 calc((100% - 1.6vw) / 2);min-width:0;max-width:calc((100% - 1.6vw) / 2)}
.last-grid{display:flex;gap:1.6vw;width:100%;min-width:0}.last-grid .choice{flex:1 1 0;width:0;min-width:0;max-width:100%}
.answer-page{padding-bottom:calc(18.66666667vw + env(safe-area-inset-bottom));min-height:100vh}
.answer-footer{position:fixed;left:0;right:0;bottom:0;padding:2.13333333vw 5.06666667vw calc(2.13333333vw + env(safe-area-inset-bottom));background:#fff;z-index:10;box-sizing:border-box}
.answer-footer .submit{margin-top:0;width:100%;max-width:100%;min-height:11.73333333vw}.answer-footer .small{margin-top:1.33333333vw;width:100%}
button.black[disabled]{background:#d9dadd;color:#777980;opacity:1}
@media (min-height:700px){.answer-page .change-choices .choice{min-height:11.46666667vw}.answer-page .question-heading{margin:3.2vw 0 4.26666667vw}.answer-page .stems{margin-bottom:3.73333333vw}}
/* Native viewport: keep the answer controls clear of the safe area. */
.answer-page{padding-top:8px;padding-bottom:calc(112px + env(safe-area-inset-bottom))}
.answer-page .question-heading{font-size:19px;line-height:1.3;margin:12px 0 16px}
.answer-page .choice,.answer-page .change-choices .choice{min-height:48px;font-size:14px;padding:8px 12px}
.answer-page .choice-grid{gap:6px}
.answer-page .choice-grid .choice{width:calc((100% - 6px)/2);flex-basis:calc((100% - 6px)/2);max-width:calc((100% - 6px)/2)}
.answer-page .last-grid{gap:6px;margin-top:6px}
.answer-page .last-grid .choice{font-size:13px;padding:8px 5px}
.answer-page .stems{margin:12px 0}
.answer-footer .feedback{margin:0 0 8px;font-size:13px;min-height:20px}
.answer-footer .small{margin-top:6px;min-height:28px;background:transparent}
.answer-page .choice.selected{background:linear-gradient(120deg,#edf1ff,#d6e0ff);border-color:#7394ef}
.exam-screen .exam-player{margin:12px 0;padding:10px 12px}
.exam-screen .exam-controls{margin:0}
.card-page{height:100vh;min-height:640px;padding-top:8px;padding-bottom:calc(76px + env(safe-area-inset-bottom));display:flex;flex-direction:column}
.card-page>.card-screen{display:flex;flex-direction:column;flex:1;min-height:0}
.card-page .heading{font-size:24px;margin:4px 0 6px}
.card-page .answer-header{margin-bottom:4px}
.card-page .card-group{margin-top:12px}
.card-page .row-title{font-size:13px;margin:0 0 5px}
.card-page .answer-card{display:flex;flex-wrap:wrap;gap:6px;margin:0}
.card-page .answer-card button{width:calc((100% - 30px)/6);flex:0 0 calc((100% - 30px)/6);min-height:44px;height:44px;font-size:14px;border-radius:12px}
.card-footer{position:fixed;bottom:0;left:0;right:0;padding:10px 19px calc(10px + env(safe-area-inset-bottom));background:white}
.card-footer .black{width:100%;min-height:44px}
.review-row .muted{white-space:pre-line}
.audio-error{position:relative;z-index:21;overflow-wrap:anywhere}
@media(max-height:680px){.answer-page .choice,.answer-page .change-choices .choice{min-height:44px}.answer-page .question-heading{margin:6px 0 10px}.answer-page .stems{margin:8px 0}.answer-page .audio-btn{min-height:40px}.card-page .card-group{margin-top:7px}}
/* Sixteen choices in two columns; the final "no change" occupies its own row. */
.answer-page .question-heading{margin:8px 0 12px}
.answer-page .answer-header{margin-bottom:8px;min-height:30px}
.answer-page .stems{margin:10px 0 12px}
.answer-page .audio-btn{min-height:40px}
.answer-page .choice,.answer-page .change-choices .choice{height:clamp(32px,calc((100vh - 310px - env(safe-area-inset-bottom))/9),44px);min-height:0;padding:5px 12px;font-size:14px}
.answer-page .last-grid .choice{width:100%;flex:1 1 100%;max-width:100%;font-size:14px;justify-content:center}
.answer-footer{padding-top:8px;padding-bottom:calc(10px + env(safe-area-inset-bottom))}
.answer-footer .submit{min-height:44px}

/* V11 — relaxed editorial rhythm. Card silhouettes come from soft-surface,
   while control geometry stays precise and readable. Values are CSS pixels. */
body{background:#fff;color:#111216;font-size:14px;line-height:1.45}
.page{padding:16px 20px calc(84px + env(safe-area-inset-bottom))}
button{font-size:13px;font-weight:600;line-height:1.25;min-height:44px;letter-spacing:0;box-shadow:none}
button::after{border:0}
.eyebrow{font-size:10px;line-height:1.3;letter-spacing:1px;color:#6b6e78}
.heading{font-size:25px;line-height:1.28;font-weight:700;letter-spacing:-.65px;margin:10px 0 22px}
.muted{font-size:12px;line-height:1.5;color:#6b6e78}
.greeting{gap:12px;align-items:center;min-height:43px}
.greeting .heading{font-size:19px;letter-spacing:-.55px;line-height:1.3;margin:5px 0 0}
.avatar{flex:none;width:34px;height:34px;font-size:15px;background:#f2f4a7}
.countdown{font-size:11px;line-height:1.4;margin:11px 0 16px}
.countdown .muted{font-size:10px;color:#787b84}
.countdown .bold{font-weight:700}

/* Art sits right of the copy. The CTA stays fully inside the copy column. */
.hero{position:relative;height:224px;min-height:224px;padding:20px;background:transparent;border-radius:0;overflow:visible}
.hero-copy{position:relative;z-index:2;width:62%;max-width:none;height:100%;display:flex;flex-direction:column;align-items:flex-start}
.hero .eyebrow{font-size:10px;line-height:1.3;letter-spacing:.4px;color:#3f4d74}
.hero-title{font-size:32px;line-height:1.04;letter-spacing:-1.25px;font-weight:750;margin:15px 0 13px}
.hero-title>view{line-height:1.04}
.hero-sub{display:block;font-size:10px;line-height:1.45;white-space:nowrap;color:#23283a;letter-spacing:-.1px}
.black{position:relative;min-height:44px;height:44px;border-radius:24px;background:#111216;color:#fff;font-size:12px;font-weight:650;padding:0 18px;gap:10px}
.hero-btn{flex:none;width:160px;max-width:100%;height:44px;min-height:44px;margin-top:auto;justify-content:center;align-self:flex-start;font-size:12px;padding:0 12px}
.listener{position:absolute;z-index:1;right:4px;bottom:16px;width:45%;height:182px;max-width:186px;pointer-events:none}
.hero .listener{object-fit:contain}

/* Transparent native surface hosts: their child paints the continuous curve. */
.surface-bg{position:absolute;left:0;top:0;width:100%;height:100%;z-index:0;pointer-events:none;display:block}
.tile,.stats-strip,.resume,.cover,.exam-player{position:relative}
.surface-copy,.hero-copy,.circle,.tile-title,.tile-desc,.tile-foot,.stats-strip>view,.cover>text,.cover>.heading,.cover>.score,.exam-player>button,.exam-player>text{position:relative;z-index:1}
.tile.purple,.tile.lemon,.tile.pink,.tile.orange{background:transparent;border-radius:0}
.stats-strip,.resume,.cover{background:transparent;border-radius:0}

.chips{display:flex;align-items:stretch;gap:8px;margin:14px 0}
.chips button{flex:1 1 0;min-width:0;min-height:44px;height:44px;border-radius:23px;background:#f5f5f6;font-size:11px;font-weight:600;white-space:nowrap;padding:0 7px}
.chips button:active{background:#e9ebef}
.resume{min-height:40px;padding:11px 14px;margin:0 0 18px;font-size:11px;line-height:1.5}
.section-head{font-size:17px;line-height:1.35;letter-spacing:-.35px;font-weight:700;margin:22px 0 12px;gap:12px}
.section-head .muted{font-size:10px;font-weight:400;letter-spacing:0;flex:none}
.training-grid{display:flex;gap:10px;align-items:stretch}
.tile{position:relative;flex:1 1 0;width:0;min-width:0;height:196px;min-height:196px;padding:17px 16px 16px;display:flex;flex-direction:column;align-items:flex-start;overflow:visible}
.circle{width:31px;height:31px;flex:none;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#111216}
.circle .icon{width:20px;height:20px}
.tile-title{font-size:19px;line-height:1.2;letter-spacing:-.55px;font-weight:700;margin:20px 0 10px;white-space:nowrap}
.tile-desc{font-size:12px;line-height:1.75;letter-spacing:-.15px}
.tile-desc>view{line-height:1.75}
.tile-foot{font-size:11px;line-height:1.4;margin:0;padding-top:12px;white-space:nowrap;margin-top:auto}
.stats-strip{display:flex;margin:16px 0 0;padding:14px 0;min-height:66px;align-items:center}
.stats-strip>view{flex:1;gap:4px;text-align:center}
.stats-strip .bold{font-size:20px;line-height:1.05;letter-spacing:-.5px;font-weight:700;color:#111216}
.stats-strip text{font-size:10px;line-height:1.4;color:#6b6e78}
.bottom-nav{height:calc(58px + env(safe-area-inset-bottom));padding:9px 14px calc(6px + env(safe-area-inset-bottom));gap:6px;background:#fff;border-top:1px solid #f3f3f5;align-items:flex-start}
.nav-item{flex:1;min-width:60px;gap:3px;font-size:10px;line-height:1.2;color:#92959d}
.nav-icon{width:20px;height:20px}
.nav-dot{width:3px;height:3px;margin-top:1px}
.nav-item.active{color:#111216}

/* The learning banner shares the same silhouette, padding and art alignment. */
.learn-screen>.heading,.analysis-screen>.heading{margin-bottom:20px}
.lesson-hero{margin:0 0 24px;background:transparent;border-radius:0;height:224px;min-height:224px}
.lesson-hero .hero-copy>text{font-size:11px;line-height:1.4}
.lesson-hero .hero-title{font-size:29px;line-height:1.08;margin:15px 0}
.lesson-hero .black{margin-top:auto;font-size:11px;max-width:165px}
.lesson-list{margin-top:12px}
.row{gap:14px;padding:18px 0;min-height:76px;border-bottom:1px solid #efeff2;font-size:13px;line-height:1.5}
.row-title{font-size:14px;line-height:1.45;font-weight:650;margin:0 0 5px;letter-spacing:-.1px}
.row .muted{font-size:11px;line-height:1.6}
.empty,.copy{font-size:13px;line-height:1.85;color:#696d77;margin:20px 0}
.quiet{font-size:11px;line-height:1.8;margin:18px 0;color:#787b84}
.cover{padding:25px 20px;margin:18px 0 24px}
.cover>text{font-size:12px;line-height:1.6}
.cover .heading{font-size:25px;line-height:1.25;margin:15px 0 12px}
.score{font-size:62px;line-height:1;letter-spacing:-3px;margin:22px 0 18px}
.score text{font-size:17px;letter-spacing:0}
.field{font-size:12px;line-height:1.5;margin:24px 0}
input,.input{font-size:13px;line-height:1.5;min-height:48px;padding:13px 15px;margin-top:10px;border-radius:14px;background:#f5f5f6}

/* Preserve the one-screen question rule: 8 paired rows + one full-width row.
   The old gradient is explicitly removed. Footer remains above the safe area. */
.answer-page{padding-top:8px;padding-left:20px;padding-right:20px;padding-bottom:calc(112px + env(safe-area-inset-bottom));min-height:100vh}
.answer-header{min-height:34px;gap:10px;margin:0 0 8px;white-space:nowrap;align-items:center}
.answer-header .back{font-size:12px;min-height:34px;height:34px;padding:0;white-space:nowrap;margin:0;background:transparent}
.answer-header>.small{font-size:10px;min-width:78px;min-height:34px;height:34px;padding:0 10px;border-radius:19px;background:#f5f5f6}
.answer-header>text{font-size:11px;font-weight:500;letter-spacing:0}
.answer-page .question-heading{font-size:19px;line-height:1.25;letter-spacing:-.5px;margin:8px 0 12px}
.question-heading .muted{font-size:11px;letter-spacing:0;font-weight:400}
.answer-page .stems{gap:8px;margin:10px 0 12px}
.answer-page .audio-btn{height:40px;min-height:40px;font-size:12px;font-weight:600;padding:0 10px;border-radius:14px;background:#f3f4f6}
.answer-page .choice-grid{display:flex;flex-wrap:wrap;gap:6px}
.answer-page .choice-grid .choice{flex:0 0 calc((100% - 6px)/2);width:calc((100% - 6px)/2);max-width:calc((100% - 6px)/2)}
.answer-page .choice,.answer-page .change-choices .choice{height:clamp(32px,calc((100vh - 310px - env(safe-area-inset-bottom))/9),44px);min-height:0;font-size:13px;line-height:1.2;border:1px solid #e5e7ed;border-radius:14px;padding:5px 12px;font-weight:500;background:#fff}
.answer-page .choice.selected{background:#dee7ff;border-color:#7a99e8;color:#111216}
.answer-page .choice.correct{background:#e7f5ec;border-color:#70b18d;color:#174c32}
.answer-page .choice.wrong{background:#ffeded;border-color:#db9393;color:#883c3c}
.answer-page .last-grid{display:flex;gap:0;margin-top:6px}
.answer-page .last-grid .choice{flex:1 1 100%;width:100%;max-width:100%;font-size:13px;justify-content:center}
.answer-footer{left:0;right:0;bottom:0;padding:8px 20px calc(10px + env(safe-area-inset-bottom));background:#fff;box-shadow:none}
.answer-footer .submit{min-height:44px;height:44px;margin:0;font-size:13px;border-radius:24px;width:100%}
.answer-footer .feedback{margin:0 0 8px;font-size:12px;line-height:1.5;min-height:18px;gap:12px}
.answer-footer .feedback text{font-size:11px;line-height:1.5;flex:none}
.answer-footer .small{margin-top:6px;min-height:28px;height:28px;font-size:11px;background:transparent}
button.black[disabled]{background:#dfe1e6;color:#8a8e97;opacity:1}
.comparison-row{gap:8px;padding:6px 0}
.candidate-audio{gap:6px}
.comparison .audio-btn{font-size:11px;min-height:44px;height:44px}
.comparison-row>.choice{min-width:120px;max-width:46%;width:auto;flex:0 0 46%;height:44px;min-height:44px;justify-content:center}
.exam-screen .exam-player{margin:10px 0 12px;padding:10px 12px;border-radius:20px;background:#f4f5f7;gap:12px}
.exam-player .black{font-size:11px;min-height:40px;height:40px;flex:none;padding:0 15px}
.exam-player .muted{font-size:10px;white-space:nowrap}
.exam-controls.answer-footer{gap:8px;margin:0}
.exam-controls button{height:44px;min-height:44px;font-size:12px;border-radius:24px}

/* Narrow devices keep the icon and CTA columns distinct. */
@media(max-width:360px){
 .greeting .heading{font-size:17px}
 .hero-title{font-size:29px}
 .hero-btn{width:145px;font-size:11px}
 .hero-sub{font-size:9px}
 .listener{right:0;width:43%;height:172px}
 .tile{padding:16px 13px;height:190px;min-height:190px}
 .tile-title{font-size:18px}
 .tile-desc{font-size:11px}
 .chips button{font-size:10px;padding:0 5px}
 .section-head .muted{font-size:9px}
}
@media(max-height:680px){
 .answer-page .question-heading{margin:6px 0 10px}
 .answer-page .answer-header{margin-bottom:5px}
 .answer-page .stems{margin:8px 0 10px}
 .answer-footer .feedback{margin-bottom:5px}
}

.tile-doodle{position:absolute;right:14px;top:18px;width:32px;height:32px;z-index:1;pointer-events:none;transform:rotate(-9deg)}
.exam-screen .exam-player{background:transparent;border-radius:0}

.black,.hero-btn,.chips button,.audio-btn,.choice{box-sizing:border-box}
.hero .hero-btn{width:160px;max-width:160px}
.hero .listener{right:8px;width:42%;height:184px;bottom:18px}
@media(max-width:360px){.hero .hero-btn{width:145px;max-width:145px}.hero .listener{width:40%;right:6px}}
/* Home uses one width-based coordinate system (100vw).
   Fixed section spacing must not absorb a missing practice attachment. */
.page.home-page{box-sizing:border-box;min-height:0;padding:3.2vw 5.06666667vw calc(26.66666667vw + env(safe-area-inset-bottom));overflow:hidden}
.home-screen{height:100%;min-height:0;display:flex;flex-direction:column}
.home-screen>.greeting,.home-screen>.countdown,.home-screen>.section-head,.home-screen>.stats-strip{flex:none}
.home-screen .greeting{min-height:9.86666667vw;gap:3.06666667vw}
.home-screen .greeting>view{min-width:0;flex:1}
.home-screen .greeting .heading{white-space:nowrap;font-size:4.53333333vw;line-height:1.3;margin:1.06666667vw 0 0;letter-spacing:-0.13333333vw}
.home-screen .eyebrow{font-size:2.26666667vw;line-height:1.3;letter-spacing:0.26666667vw}
.greeting .headphone-shortcut{box-sizing:border-box;flex:none;width:10.26666667vw;min-width:10.26666667vw;max-width:10.26666667vw;height:10.26666667vw;min-height:10.26666667vw;padding:2.4vw;border-radius:50%;background:#f5f5f6}
.headphone-shortcut img{width:5.33333333vw;height:5.33333333vw}
.home-screen .countdown{font-size:2.53333333vw;line-height:1.3;margin:1.86666667vw 0 2.93333333vw}
.home-screen .countdown .muted{font-size:2.4vw}
.hero-stack{position:relative;display:flex;flex-direction:column;flex:.4 0 47.2vw;min-width:0;min-height:47.2vw}
.hero-stack.has-resume{flex-basis:62.13333333vw;min-height:62.13333333vw}
.hero-stack>.hero{position:relative;z-index:1}
.home-screen .hero{flex:1;height:auto;min-height:47.2vw;padding:3.6vw 4.53333333vw}
.home-screen .hero-copy{width:62%}
.home-screen .hero-title{font-size:6.93333333vw;line-height:1.03;margin:1.86666667vw 0;letter-spacing:-0.22666667vw}
.home-screen .hero-title>view{line-height:1.03}
.home-screen .hero .eyebrow{display:block;font-size:2.26666667vw;letter-spacing:.0.93333333vw}
.home-screen .hero-sub{display:block;font-size:2.26666667vw;line-height:1.3}
.home-screen .hero-btn{width:40vw;max-width:40vw;height:11.2vw;min-height:11.2vw;margin-top:auto;padding:0 3.06666667vw;font-size:2.93333333vw;border-radius:6.4vw}
.home-screen .hero .listener{right:2vw;bottom:2.26666667vw;width:43%;height:88%;max-width:none}
/* The unfinished practice remains an attached lower layer, when present. */
.resume-underlay{position:absolute;z-index:0;left:0;right:0;top:15.33333333vw;bottom:0;pointer-events:none}
.resume-attachment{position:relative;z-index:1;box-sizing:border-box;display:flex;align-items:center;justify-content:space-between;gap:2vw;height:14.93333333vw;min-height:14.93333333vw;padding:1.33333333vw 3.06666667vw 2.8vw 4.4vw;color:white}
.resume-message{position:relative;z-index:1;min-width:0}
.resume-heading{display:flex;align-items:center;gap:1.6vw;font-size:3.33333333vw;font-weight:650;line-height:1.4}
.reminder-dot{width:1.6vw;height:1.6vw;flex:none;border-radius:50%;background:#e9b3f3}
.resume-message>text{font-size:2.53333333vw;color:#c5c7cf;line-height:1.6}
.resume-attachment .resume-action{position:relative;z-index:1;box-sizing:border-box;flex:none;width:22vw;min-width:22vw;max-width:22vw;height:10.26666667vw;min-height:10.26666667vw;padding:0 2vw;border-radius:6.4vw;background:white;color:#111216;font-size:2.8vw}
/* Exactly equal upper/lower spacing; never use auto vertical margins here. */
.home-screen>.training-heading{box-sizing:content-box;height:10.93333333vw;min-height:10.93333333vw;margin:0;padding:4.8vw 0;gap:2.66666667vw;align-items:center}
.training-heading>view>text{font-size:4.13333333vw;line-height:1.3;letter-spacing:-.0.93333333vw}
.rail-hint{margin-top:0.8vw;font-size:2.26666667vw;font-weight:400;line-height:1.3;color:#8a8d96;letter-spacing:0}
.training-actions{display:flex;align-items:center;gap:1.6vw;flex:none}
.training-heading .daily-shortcut{box-sizing:border-box;flex:none;width:23.6vw;min-width:23.6vw;max-width:23.6vw;height:10.13333333vw;min-height:10.13333333vw;padding:0 2.53333333vw;border-radius:5.33333333vw;background:#f5f5f6;font-size:2.53333333vw}
.training-heading .rail-next{box-sizing:border-box;flex:none;width:10.13333333vw;min-width:10.13333333vw;max-width:10.13333333vw;height:10.13333333vw;min-height:10.13333333vw;padding:0;border-radius:50%;background:#111216;color:#fff;font-size:4.8vw}
/* Card width and maximum height share one value on every screen width.
   Short viewports may compress all three equally, without stretching gaps. */
.training-slot{flex:.6 1 51.2vw;min-height:0;overflow:hidden}
.training-scroller{width:100%;max-width:none;overflow:hidden}
.training-rail{box-sizing:border-box;height:100%;display:flex;align-items:stretch;gap:2.66666667vw;padding:0;white-space:normal}
.home-screen .training-card{box-sizing:border-box;position:relative;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-start;flex:0 0 51.2vw;width:51.2vw;min-width:51.2vw;max-width:51.2vw;height:100%;min-height:0;max-height:none;padding:4vw 4vw;background:transparent;border-radius:0;overflow:hidden;text-align:left}
.card-title-row{position:relative;z-index:1;display:flex;flex-direction:column;align-items:flex-start;gap:2.4vw;flex:none}
.training-card .circle{width:10.4vw;height:10.4vw}
.training-card .icon{width:6.4vw;height:6.4vw}
.training-card .tile-title{font-size:5.86666667vw;line-height:1.2;margin:0;letter-spacing:-0.13333333vw;font-weight:700}
.training-card .tile-desc{position:relative;z-index:1;font-size:3.46666667vw;line-height:1.6;margin-top:2.13333333vw;font-weight:400;letter-spacing:-.0.4vw}
.training-card .tile-desc>view{line-height:1.6}
.training-card .tile-foot{position:relative;z-index:1;display:flex;justify-content:space-between;width:100%;margin:0;margin-top:auto;padding:1.6vw 0 0;font-size:3.06666667vw;line-height:1.3;font-weight:500;white-space:nowrap}
.training-card .tile-foot>text{font-size:5.06666667vw;line-height:1}
.card-doodle{position:absolute;z-index:1;right:2.93333333vw;top:3.73333333vw;width:14.93333333vw;height:14.93333333vw;transform:rotate(-10deg);pointer-events:none}
.home-screen>.stats-strip{position:fixed;z-index:19;left:5.06666667vw;right:5.06666667vw;bottom:calc(16.8vw + env(safe-area-inset-bottom));min-height:6.66666667vw;height:6.66666667vw;padding:0;margin:0;background:white}
.home-screen>.stats-strip>.surface-bg{display:none}
.home-screen>.stats-strip>view{flex-direction:row;align-items:baseline;justify-content:center;gap:1.33333333vw;line-height:1}
.home-screen>.stats-strip .bold{font-size:3.6vw;line-height:1}
.home-screen>.stats-strip text{font-size:2.26666667vw;line-height:1}
@media(max-height:650px){
 .home-screen .hero{height:auto;min-height:36.53333333vw;padding:3.06666667vw 4.13333333vw}
 .home-screen .hero-title{font-size:5.6vw;margin:1.33333333vw 0}
 .home-screen .hero .listener{height:88%}
 .home-screen .hero .eyebrow{display:none}
 .home-screen>.training-heading{padding:3.2vw 0}
 .hero-stack{flex-basis:36.53333333vw;min-height:36.53333333vw}
 .hero-stack.has-resume{flex-basis:49.86666667vw;min-height:49.86666667vw}
 .training-slot{flex-basis:41.06666667vw}
 .home-screen .training-card{padding:3.06666667vw 3.33333333vw}
 .training-card .tile-desc{font-size:3.06666667vw;margin-top:1.6vw}
 .training-card .circle{width:8.53333333vw;height:8.53333333vw}
 .training-card .icon{width:5.33333333vw;height:5.33333333vw}
 .training-card .tile-title{font-size:5.06666667vw}
 .card-title-row{gap:1.6vw}
 .card-doodle{width:12.26666667vw;height:12.26666667vw}
 .resume-attachment{height:13.33333333vw;min-height:13.33333333vw;padding-bottom:2vw}
 .resume-attachment .resume-action{height:9.2vw;min-height:9.2vw}
}
@media(max-height:570px){
 .page.home-page{padding-top:2.13333333vw}
 .home-screen .hero{height:auto;min-height:31.73333333vw}
 .hero-stack{flex-basis:31.73333333vw;min-height:31.73333333vw}
 .hero-stack.has-resume{flex-basis:44vw;min-height:44vw}
 .home-screen .hero-title{font-size:5.06666667vw;margin:0.26666667vw 0}
 .home-screen .hero-sub{display:none}
 .home-screen .hero .listener{height:88%}
 .home-screen .greeting .heading{font-size:4vw}
 .home-screen>.training-heading{height:8.26666667vw;min-height:8.26666667vw;padding:2.66666667vw 0}
 .rail-hint{display:none}
 .resume-attachment{height:12.26666667vw;min-height:12.26666667vw;padding-bottom:1.6vw}
 .training-card .tile-desc>view+view{display:none}
 .training-card .tile-title{font-size:4.53333333vw}
 .training-card .tile-foot{font-size:2.8vw}
}

/* Home statistics form a dock shelf; extra height belongs to the two card areas. */
.home-bottom-nav{height:calc(14.93333333vw + env(safe-area-inset-bottom));padding:2.26666667vw 3.6vw calc(1.6vw + env(safe-area-inset-bottom))}
.home-bottom-nav .nav-item{min-width:15.33333333vw;gap:0.8vw;font-size:2.53333333vw}
.home-bottom-nav .nav-icon{width:5.06666667vw;height:5.06666667vw}
.home-bottom-nav .nav-dot{width:0.8vw;height:0.8vw;margin-top:0.26666667vw}

.training-card-random .card-doodle{transform:rotate(14deg) scaleX(-1)}

/* Optical text inset follows the soft corners; graphics and hit areas stay put. */
.home-screen .greeting-copy,.home-screen .countdown,.home-screen .training-title-group{padding-left:1.6vw}

/* A single bundled avatar: presentation only, no upload or chooser action. */
.greeting .profile-shortcut{box-sizing:border-box;flex:none;width:10.26666667vw;min-width:10.26666667vw;max-width:10.26666667vw;height:10.26666667vw;min-height:10.26666667vw;padding:0;overflow:hidden;border-radius:50%;background:#a8bfff}
.profile-shortcut .default-avatar{display:block;width:100%;height:100%;border-radius:50%}
.profile-summary{display:flex;align-items:center;gap:3.2vw;margin:3.46666667vw 0 2.13333333vw}
.profile-summary>.default-avatar{display:block;flex:none;width:17.06666667vw;height:17.06666667vw;border-radius:50%}
.profile-summary .row-title{font-size:4.26666667vw;margin:0 0 1.06666667vw}
.profile-tools-label{display:flex;align-items:center;gap:2.4vw}

/* Anchor the avatar to the Chinese greeting line, not the eyebrow+heading group. */
.home-screen .greeting{min-height:10.26666667vw}
.home-screen .greeting .heading{position:relative;padding-right:13.33333333vw}
.greeting .profile-shortcut{position:absolute;right:0;top:50%;transform:translateY(-50%)}

.training-scroller{overflow-x:auto;overflow-y:hidden;scrollbar-width:none}
.training-scroller::-webkit-scrollbar{display:none}