.pinyin-hero{display:grid;grid-template-columns:1.7fr 1fr;gap:32px;align-items:center;padding:32px;border-radius:22px;background:#eee8fb;margin:25px 0 0;border:1px solid #e4dbf3}
.pinyin-hero .tag{color:#66518f}.pinyin-hero h2{font-size:32px;line-height:1.2;margin:15px 0}.pinyin-hero p{max-width:630px;color:#6f627f;font-size:13px;line-height:1.9}.pinyin-hero-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}.pinyin-hero-chips span{font-size:10px;background:#fff9;border:1px solid #fff;padding:6px 10px;border-radius:20px}
.pinyin-hero-art{display:grid;grid-template-columns:repeat(2,78px);justify-content:center;gap:12px;transform:rotate(-4deg)}.pinyin-hero-art b{display:grid;place-items:center;font-size:45px;line-height:1;width:78px;height:78px;background:#fff;border-radius:17px;color:#6552c7;box-shadow:0 8px 18px #5747700b}.pinyin-hero-art b:nth-child(2){background:#fae3d5;color:#a96343}.pinyin-hero-art b:nth-child(3){background:#dfeee4;color:#38715e}.pinyin-hero-art b:nth-child(4){background:#6552c7;color:#fff}.pinyin-hero-art small{grid-column:1/-1;text-align:center;font-size:9px;letter-spacing:2px;margin-top:8px}
.pinyin-progress-strip{display:flex;flex-wrap:wrap;gap:14px 28px;background:white;padding:18px 24px;border:1px solid var(--line);border-top:0;border-radius:0 0 15px 15px;font-size:11px;color:#776b89}.pinyin-progress-strip b{font-size:15px;color:var(--dark);margin-right:4px}
.pinyin-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:28px}.pinyin-tabs button{background:#eeeaf3;color:#736782;font-size:13px;display:flex;align-items:center;justify-content:center;gap:10px;padding:14px 10px}.pinyin-tabs button.active{background:#6552c7;color:#fff}.pinyin-tabs small{font-size:10px;opacity:.75}.pinyin-audio-status{font-size:11px;padding:15px 2px;color:#746782;min-height:50px;line-height:1.8}
.pinyin-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:20px;align-items:start}.pinyin-layout>.card{min-width:0}.pinyin-family{display:flex;flex-wrap:wrap;gap:6px}.pinyin-family button{font-size:11px;padding:10px 12px}.pinyin-family button.selected{background:#6552c7;color:#fff}.pinyin-caption{font-size:11px;margin:16px 0 22px;line-height:1.8}.pinyin-group-title{font-size:12px;color:#746580;margin:24px 0 10px;font-weight:600}.pinyin-sound-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.pinyin-sound{background:#f7f5fa;color:var(--dark);border:1px solid #e9e3f1;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:85px;padding:10px 4px;position:relative}.pinyin-sound strong{font-size:26px;line-height:1.4}.pinyin-sound small{color:#887597;font-size:10px;font-weight:400}.pinyin-sound.selected{background:#efeafa;border:2px solid #8e7bd2;padding:9px 3px}.pinyin-tick{position:absolute;top:3px;right:5px;color:#2d795b;font-size:11px}
.pinyin-coach{position:sticky;top:20px}.pinyin-coach .tag{font-size:9px;letter-spacing:1px}.pinyin-big{text-align:center;font-size:88px;line-height:1.2;color:#6552c7;margin:22px 0}.pinyin-example{display:flex;align-items:center;justify-content:center;gap:16px;margin:18px 0}.pinyin-example>strong{font-size:34px}.pinyin-example b{display:block;color:#6552c7;font-size:18px}.pinyin-example small{display:block;font-size:12px;color:#8b7c99}.pinyin-actions{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 12px;align-items:center}.pinyin-actions button{font-size:12px;padding:11px 15px}.pinyin-audio-caption{font-size:10px;line-height:1.7;color:#8b7c99}.pinyin-tip{background:#f5f2fa;border-radius:12px;padding:16px;margin:22px 0;font-size:12px;line-height:1.9}.pinyin-tip>b{font-size:11px;color:#776587}.pinyin-steps{padding-left:20px;color:#75677e;font-size:12px;line-height:1.9}.pinyin-steps li{margin:10px 0}.pinyin-mark{font-size:12px;margin-top:12px;width:100%}
.pinyin-tone-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:20px 0}.pinyin-tone{--tone:#6552c7;border-top:3px solid var(--tone);display:flex;flex-direction:column;align-items:stretch}.pinyin-tone-2{--tone:#388265}.pinyin-tone-3{--tone:#b47c33}.pinyin-tone-4{--tone:#c76d63}.pinyin-tone-5{--tone:#7a8294}.pinyin-tone-curve{width:100%;height:100px;color:var(--tone);margin:10px 0}.pinyin-tone h2{font-size:44px;color:var(--tone);margin:8px 0}.pinyin-tone>p{font-size:12px}.pinyin-tone-tip{color:#786b84;line-height:1.9;flex:1}.pinyin-tone .pinyin-actions{margin-top:20px}.pinyin-tone .pinyin-actions button{font-size:10px;padding:10px 12px}.pinyin-tone .pinyin-mark{font-size:10px}.pinyin-rules{font-size:13px;line-height:1.9}.pinyin-rules h3{font-size:16px;margin-top:26px}.pinyin-rules p{margin:14px 0}.pinyin-rules>button{font-size:12px}.pinyin-rules .text-link{font-size:11px}
.pinyin-blend h2{margin-top:18px}.pinyin-blend .field{margin-top:22px}.pinyin-equation{display:flex;align-items:center;justify-content:center;gap:12px;margin:32px 0 0}.pinyin-equation>div{border:1px solid #e5dcef;border-radius:13px;min-width:78px;text-align:center;padding:14px 8px;background:#f8f5fc}.pinyin-equation strong{display:block;font-size:30px;line-height:1.4;color:#6552c7}.pinyin-equation small{font-size:9px;color:#877291}.pinyin-equation>span{font-size:16px;color:#a595b3}.pinyin-blend-result{text-align:center;margin:28px 0}.pinyin-blend-result>b{font-size:55px;color:#6552c7;display:block}.pinyin-blend-result>span{font-size:35px;display:block}.pinyin-blend-result>small{font-size:13px;color:#817088}.pinyin-pager{justify-content:space-between;margin-top:25px}
.pinyin-quiz-start{display:grid;grid-template-columns:1fr 1fr;gap:20px}.pinyin-quiz-start h2{margin-top:18px}.pinyin-quiz-start p{font-size:13px;line-height:1.9;margin:16px 0 24px}.pinyin-quiz-start .card{display:flex;flex-direction:column;align-items:start}.pinyin-quiz-start p{flex:1}.pinyin-quiz-start button{font-size:12px}.pinyin-quiz,.pinyin-result{max-width:720px;margin:0 auto;text-align:center}.pinyin-quiz .section-head{margin-top:0}.pinyin-quiz h2{margin-top:28px}.pinyin-question-audio{display:flex;flex-direction:column;align-items:center;gap:12px;margin:25px 0}.pinyin-play{width:74px;height:74px;border-radius:50%;font-size:27px;padding:0;background:#6552c7}.pinyin-question-audio small{font-size:11px;color:#8b799a}.pinyin-question-audio .secondary{font-size:11px}.pinyin-answers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.pinyin-answers button{background:#f5f1fa;color:#4e3c70;border:1px solid #e4d9f0;font-size:28px;padding:18px 12px}.pinyin-answers button.correct{background:#e1f1e7;border-color:#599f7a;color:#2d7451;opacity:1}.pinyin-answers button.wrong{background:#fae9e2;border-color:#d18b6e;color:#9f543c;opacity:1}.pinyin-feedback{min-height:100px;padding:22px 0 8px;font-size:12px;line-height:1.8;color:#786387}.pinyin-feedback b{color:var(--dark)}.pinyin-quiz .pinyin-actions,.pinyin-result .pinyin-actions{justify-content:center}.pinyin-result{padding:36px}.pinyin-score{font-size:80px;color:#6552c7;margin:25px 0}.pinyin-score small{font-size:24px;color:#a591b3}.pinyin-result p{font-size:13px}.pinyin-footer-note{font-size:10px;line-height:1.9;color:#8a7a98;margin:26px 0}
.pinyin-entry{display:flex;align-items:center;gap:16px;background:#f0eafa;border:1px solid #e5dcf1;border-radius:16px;padding:18px 22px;margin-bottom:22px}.pinyin-entry-icon{display:grid;place-items:center;flex:none;background:#fff;border-radius:11px;color:#6552c7;width:48px;height:48px;font-size:29px}.pinyin-entry strong{display:block;font-size:13px}.pinyin-entry small{font-size:11px;color:#8a7799;display:block;margin-top:4px}.pinyin-entry>b{margin-left:auto;color:#6552c7}.pinyin-progress-card{margin-top:22px}.pinyin-progress-card p{font-size:13px;margin-bottom:20px}
@media(min-width:701px){body>aside{overflow-y:auto}body>aside>.aside-bottom{padding-top:24px}body>aside .brand{flex-shrink:0}}
@media(max-width:1050px){.pinyin-layout{grid-template-columns:1fr}.pinyin-coach{position:static}.pinyin-sound-grid{grid-template-columns:repeat(6,minmax(0,1fr))}.pinyin-tone-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.pinyin-hero{grid-template-columns:1fr;padding:24px;gap:20px}.pinyin-hero h2{font-size:28px}.pinyin-hero-art{display:flex;flex-wrap:wrap;transform:none;gap:10px}.pinyin-hero-art b{width:52px;height:58px;font-size:33px}.pinyin-hero-art small{display:none}.pinyin-progress-strip{padding:15px;gap:12px;font-size:10px}.pinyin-tabs{gap:5px}.pinyin-tabs button{font-size:11px;flex-direction:column;gap:4px;padding:12px 4px}.pinyin-tabs small{font-size:9px}.pinyin-sound-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.pinyin-layout{gap:14px}.pinyin-board,.pinyin-coach,.pinyin-blend{padding:20px}.pinyin-tone-grid,.pinyin-quiz-start{grid-template-columns:1fr}.pinyin-tone-grid .pinyin-tone-curve{height:80px}.pinyin-equation{gap:6px}.pinyin-equation>div{min-width:65px;padding:12px 6px}.pinyin-equation strong{font-size:26px}.pinyin-quiz,.pinyin-result{padding:23px 18px}.pinyin-answers button{font-size:24px}.pinyin-entry{padding:15px;gap:12px}.pinyin-entry strong{font-size:12px}.pinyin-entry small{font-size:10px}.pinyin-family button{font-size:10px}.pinyin-tone-grid .pinyin-actions button{font-size:12px}.pinyin-tone-grid .pinyin-mark{font-size:12px}nav a.pinyin-nav{white-space:nowrap;font-size:12px}nav a.pinyin-nav span{display:inline}.pinyin-footer-note{font-size:11px}}

#pinyin-sound-title{scroll-margin-top:180px}