:root{--cream:#faf6ee;--red:#8f3438;--brown:#49372f;--gold:#c9a45d;--muted:#806d60;--line:#e4dacc;--white:#fffdf8;--green:#366454;--shadow:0 10px 38px #49372f08}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--brown);font-family:"Times New Roman",Times,"Songti SC","SimSun",serif;font-size:15px;line-height:1.65}button,input,select{font:inherit}button{cursor:pointer;color:inherit;touch-action:manipulation}button:disabled{cursor:default;opacity:.48}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--gold);outline-offset:4px}button{border:0;background:none}a{color:var(--red)}h1,h2,h3,p{margin-top:0}h1,h2,.serif{font-family:"Times New Roman",Times,"Songti SC","SimSun",serif;font-weight:500;line-height:1.25}h1{font-size:clamp(30px,4vw,48px);letter-spacing:-1.5px}h2{font-size:28px}h3{font-size:18px;line-height:1.5}small,.small{font-size:12px}.muted{color:var(--muted)}.han{font-family:"Times New Roman",Times,"Songti SC","SimSun",serif}.eyebrow{font-size:11px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--red)}.shell{max-width:1180px;margin:auto;padding:0 36px}header{height:98px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;text-align:left;padding:0;color:var(--red)}.brand strong{font-family:"Times New Roman",Times,"Songti SC","SimSun",serif;font-size:21px;letter-spacing:.5px}.brand small{display:block;font-size:8px;letter-spacing:2.2px}.brand svg{width:48px;height:48px}.header-right{display:flex;gap:16px;align-items:center}.chip{border:1px solid var(--line);border-radius:50px;padding:7px 14px;font-size:12px}.icon-btn{border:1px solid var(--line);border-radius:50%;width:44px;height:44px;background:var(--white)}.topnav{display:flex;align-items:center;gap:30px;border-bottom:1px solid var(--line);height:65px}.topnav button{height:65px;padding:0 2px;font-size:13px;position:relative;color:var(--muted);white-space:nowrap}.topnav button.active{color:var(--red);font-weight:600}.topnav button.active:after{content:'';position:absolute;height:3px;background:var(--red);bottom:0;left:0;right:0}.topnav span{margin-right:8px;font-size:18px}main{padding:36px 0 64px}.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:20px;align-items:center;min-height:300px;border-bottom:1px solid var(--line);padding:10px 0 36px}.hero h1{margin:16px 0}.hero p{max-width:460px;color:var(--muted);font-size:14px}.hero-art{position:relative;height:290px;display:flex;align-items:center;justify-content:center;overflow:hidden}.hero-art svg{width:100%;height:100%}.hero-art .seal{position:absolute;right:15px;top:22px;writing-mode:vertical-rl;letter-spacing:7px;font-family:"Times New Roman",Times,"Songti SC","SimSun",serif;color:var(--red);font-size:17px}.primary,.secondary,.soft{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 23px;border-radius:8px;font-size:13px;font-weight:600}.primary{background:var(--red);color:var(--cream)}.primary:hover{background:#76282c}.secondary{border:1px solid var(--line);background:var(--white)}.secondary:hover,.option:hover{border-color:var(--red)}.soft{background:#f0e7d9;color:var(--brown)}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.between{justify-content:space-between}.stats{display:grid;grid-template-columns:repeat(3,1fr);margin:24px 0 38px;border:1px solid var(--line);border-radius:12px;background:#fffdf877}.stat{padding:18px 24px;border-right:1px solid var(--line);display:flex;align-items:center;gap:17px}.stat:last-child{border:0}.stat strong{font-family:"Times New Roman",Times,"Songti SC","SimSun",serif;font-size:28px;font-weight:500;color:var(--red)}.stat span{font-size:12px;display:block}.section-title{display:flex;justify-content:space-between;align-items:end;margin-bottom:20px}.section-title h2{margin:5px 0 0}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.course{padding:25px 22px;background:var(--white);border:1px solid var(--line);border-radius:12px;position:relative;text-align:left;min-height:260px;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:transform .18s,border-color .18s}.course:hover{transform:translateY(-4px);border-color:var(--gold)}.course .glyph{height:56px;width:56px;border-radius:12px;background:#f4e8df;color:var(--red);display:grid;place-items:center;font-size:30px;margin-bottom:22px}.course:nth-child(2) .glyph{background:#eee8dc;color:#746248}.course:nth-child(3) .glyph{background:#e8eee7;color:var(--green)}.course:nth-child(4) .glyph{background:#f5e9cb;color:#90641d}.course h3{margin:0 0 5px}.course p{font-size:12px;color:var(--muted);margin-bottom:18px}.course .foot{margin-top:auto;display:flex;justify-content:space-between;font-size:11px;color:var(--red)}.progress{height:5px;background:#ede5da;border-radius:10px;overflow:hidden;margin:13px 0}.progress i{display:block;background:var(--red);height:100%;border-radius:10px}.note-strip{display:flex;gap:20px;align-items:center;padding:22px 25px;border:1px solid var(--line);border-radius:10px;margin-top:24px;font-size:13px;background:#f5efe4}.note-strip .symbol{font-size:28px;color:var(--gold)}footer{padding:22px 0;border-top:1px solid var(--line);font-size:11px;color:var(--muted);display:flex;justify-content:space-between;gap:15px}footer button{padding:0;text-decoration:underline;font-size:11px}.pagehead{margin-bottom:26px}.pagehead h1{font-size:34px;margin:12px 0}.panel{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:28px;box-shadow:var(--shadow)}.study-layout{display:grid;grid-template-columns:1fr 285px;gap:24px}.flash{min-height:330px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:14px;background:linear-gradient(145deg,#fffdf8,#f7f0e3);padding:28px;position:relative;margin:20px 0}.flash .word{font-size:72px;line-height:1.4;margin:14px 0;color:var(--red)}.flash .meaning{font-size:25px;line-height:1.5;max-width:540px}.pinyin{font-size:22px;color:var(--muted);margin-bottom:18px}.sound{border:1px solid var(--line);background:var(--white);border-radius:50px;padding:10px 18px;min-height:44px}.flash .tag{font-size:10px;text-transform:uppercase;letter-spacing:2px;color:var(--muted)}.flash .reveal{border-top:1px solid var(--line);padding-top:16px;margin-top:18px;width:100%}.tabs{display:flex;background:#f0e9df;border-radius:8px;padding:4px;gap:4px}.tabs button{border-radius:6px;min-height:40px;padding:5px 14px;font-size:12px}.tabs button.selected{background:var(--white);color:var(--red);box-shadow:0 2px 6px #49372f0a}.word-list{padding:0;list-style:none;margin:16px 0 0}.word-list button{width:100%;display:flex;align-items:center;gap:12px;padding:10px;border-radius:7px;text-align:left;min-height:44px}.word-list button.current{background:#f3e6de;color:var(--red)}.word-list .num{font-size:10px;min-width:18px;color:var(--muted)}.word-list .han{font-size:19px;flex:1}.word-list .tick{color:var(--green);font-size:12px}.field{width:100%;border:1px solid #cabcab;background:var(--white);border-radius:8px;padding:14px;font-size:17px;color:var(--brown);min-height:48px}.feedback{background:#eaf0e9;color:#2c5748;border:1px solid #c7d7c7;border-radius:9px;padding:16px;margin-top:18px;font-size:14px}.feedback.bad{background:#f6e8e5;color:#85383c;border-color:#e5c2bb}.feedback.assist{background:#f5eedc;color:#785d27;border-color:#e0d1ae}.feedback p{margin:5px 0 0}.full{width:100%}.spacer{margin-top:20px}.split{display:grid;grid-template-columns:1fr 1fr;gap:12px}.lesson-block{margin-bottom:20px}.lesson-block .example{padding:20px;background:var(--cream);border-radius:10px;margin:16px 0}.example .han{font-size:30px;color:var(--red)}.example p{margin:6px 0;font-size:14px}.quiz{max-width:760px;margin:auto}.quiz h2{font-family:"Times New Roman",Times,"Songti SC","SimSun",serif;font-size:23px;line-height:1.5;margin:20px 0}.option{border:1px solid var(--line);background:var(--white);border-radius:9px;text-align:left;padding:17px 20px;width:100%;font-size:17px;margin-bottom:10px;min-height:57px}.option.chosen{border-color:var(--red);background:#f4e8e3}.option.correct{border-color:var(--green);background:#eaf0e9}.option b{font-size:11px;color:var(--muted);margin-right:14px}.match-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.match-grid button{min-height:64px;font-size:15px}.selected-pair{border:2px solid var(--red)!important;background:#f4e8e3!important}.matched{border-color:var(--green)!important;background:#eaf0e9!important}.order-zone{min-height:80px;border:1px dashed var(--gold);padding:14px;margin-bottom:18px;border-radius:10px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}.token{padding:12px 20px;background:#f2e9da;border:1px solid var(--line);border-radius:8px;font-size:23px}.result-number{font-size:66px;color:var(--red);font-family:"Times New Roman",Times,"Songti SC","SimSun",serif}.center{text-align:center}.review-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}.review-item .han{font-size:26px}.badge{font-size:10px;letter-spacing:.4px;padding:4px 9px;border-radius:30px;background:#eee4d6;white-space:nowrap}.badge.due{background:#f1dfd9;color:var(--red)}.game-wrap{max-width:850px;margin:auto}.mine{background:#efe0bd;border-radius:14px;border:1px solid #d5bb8c;overflow:hidden;margin:20px 0;position:relative}.mine canvas{display:block;width:100%;height:auto;touch-action:manipulation}.game-target{font-size:23px;font-family:"Times New Roman",Times,"Songti SC","SimSun",serif;margin:10px 0}.game-options{display:flex;gap:10px;flex-wrap:wrap}.game-options button{flex:1;min-width:60px;font-size:22px}.timerbar{height:5px;background:#e8ddcf;border-radius:10px;overflow:hidden}.timerbar i{height:100%;background:var(--gold);display:block}.settings-grid{display:grid;gap:20px;max-width:740px}.settings-grid h3{margin-bottom:8px}.settings-grid p{font-size:13px}.settings-grid input[type=file]{max-width:100%;font-size:13px}#toast{position:fixed;bottom:92px;left:50%;transform:translateX(-50%);background:var(--brown);color:white;padding:12px 20px;border-radius:9px;z-index:20;max-width:90%;font-size:13px;display:none}dialog{border:1px solid var(--line);border-radius:15px;padding:28px;width:min(92%,520px);background:var(--cream);color:var(--brown)}dialog::backdrop{background:#34271d70}.bottomnav{display:none}.empty{padding:30px;text-align:center}.check{display:flex;align-items:center;gap:10px;min-height:44px;font-size:13px}.check input{width:18px;height:18px;accent-color:var(--red)}.hide{display:none!important}.inline-link{color:var(--red);text-decoration:underline;font-size:12px}.source{font-size:11px;color:var(--muted);margin-top:24px} @media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}.study-layout{grid-template-columns:1fr}.study-layout aside{order:2}.word-list{display:grid;grid-template-columns:repeat(3,1fr)}.hero-art{height:230px}.hero h1{font-size:36px}.shell{padding:0 25px}.topnav{gap:25px}}@media(max-width:600px){body{font-size:14px}.shell{padding:0 20px}header{height:78px}.brand strong{font-size:16px}.brand small{font-size:6px;letter-spacing:1.5px}.brand svg{width:37px}.header-right{gap:8px}.header-right .chip{display:none}.topnav{display:none}.bottomnav{display:flex;position:fixed;bottom:0;left:0;right:0;justify-content:space-around;background:#fffdf8f5;backdrop-filter:blur(14px);border-top:1px solid var(--line);z-index:10;padding:8px 4px max(8px,env(safe-area-inset-bottom))}.bottomnav button{font-size:10px;min-width:54px;min-height:48px;color:var(--muted)}.bottomnav span{display:block;font-size:20px;line-height:1.3}.bottomnav .active{color:var(--red);font-weight:700}main{padding:24px 0 35px}.hero{grid-template-columns:1fr;gap:0;padding:0 0 24px}.hero h1{font-size:36px;max-width:300px}.hero-art{height:165px;grid-row:2;margin-top:12px}.hero-art .seal{font-size:13px;right:20px}.hero p{font-size:13px}.hero .primary{width:100%}.stats{margin:20px 0 30px}.stat{padding:13px 9px;gap:4px;display:block;text-align:center}.stat strong{font-size:24px}.stat span{font-size:10px}.section-title h2{font-size:25px}.section-title>.muted{display:none}.grid{gap:12px}.course{min-height:230px;padding:18px 15px}.course .glyph{width:44px;height:44px;font-size:25px;margin-bottom:17px}.course h3{font-size:16px}.course p{font-size:11px}.course .foot{font-size:10px}.note-strip{font-size:11px;padding:16px;gap:12px}.panel{padding:20px}.pagehead h1{font-size:29px}.flash{padding:22px 14px;min-height:320px}.flash .word{font-size:64px}.flash .meaning{font-size:22px}.pinyin{font-size:20px}.split{gap:8px}.split .secondary,.split .primary{padding:10px;font-size:12px}.word-list{grid-template-columns:repeat(2,1fr)}.quiz h2{font-size:20px}.match-grid{gap:10px}.match-grid button{font-size:13px;padding:12px;min-height:80px}.game-options{gap:7px}.game-options button{font-size:19px;padding:8px}.game-target{font-size:20px}footer{margin-bottom:78px;font-size:9px;flex-direction:column;gap:4px}.source{font-size:10px}.row>.chip{font-size:10px}.order-zone .token{font-size:20px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.level-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.level{display:flex;flex-direction:column;gap:8px}.level p{flex:1;line-height:1.7}.locked{opacity:.68}.stars{display:block;font-size:40px;letter-spacing:8px;color:#987021}.countdown{font-variant-numeric:tabular-nums;background:#eee3cc;border-radius:30px;padding:8px 16px;color:#49372f}.countdown.urgent{color:#8f3438;background:#f9dedb}.table-scroll{overflow:auto;margin-top:24px}.rank-table{width:100%;border-collapse:collapse;text-align:left;min-width:600px}.rank-table td,.rank-table th{padding:18px 12px;border-bottom:1px solid var(--line)}.rank-table th{font-size:13px;color:#735b4c}.login-link{display:inline-block;text-decoration:none;margin:20px 0}.bottomnav{grid-template-columns:repeat(6,1fr)}.bottomnav button{font-size:10px}.bottomnav button span{font-size:21px}select.field{min-width:140px}@media(max-width:760px){.level-grid{grid-template-columns:1fr}.topnav{gap:5px}.rank-table td,.rank-table th{padding:12px 8px}.level p{font-size:15px}}
#academy .word{font-size:64px;line-height:1.4;margin:20px 0}#academy .pinyin{font-size:24px}#academy .level h2{font-size:32px}
kbd{font-family:"Times New Roman",Times,"Songti SC","SimSun",serif;font-size:12px;padding:3px 7px;border:1px solid #cfbda6;border-bottom-width:3px;border-radius:5px;background:#fffaf2}.hell-art{width:180px;max-width:100%;height:auto}.hell-card{background:linear-gradient(150deg,#211924,#42232a)!important;color:#f8ddc4;border-color:#8b493b!important;overflow:hidden}.hell-card h2,.hell-card .eyebrow{color:#ffc181}.hell-card .stars{color:#ffc761}.hell-card p{color:#f2d6c2}.hell-card .hell-art{align-self:center}.hell-mode{--cream:#19131c;--paper:#281d28;--ink:#f7e6d3;--muted:#c9afaa;--line:#65404a;--red:#ed8959;background:#19131c;color:#f7e6d3}.hell-mode .shell{background:radial-gradient(ellipse at 50% 40%,#4a2325,transparent 65%)}.hell-mode .panel{background:#261b26;border-color:#6f4148}.hell-mode .option,.hell-mode .token,.hell-mode .field{background:#352432;color:#f8dfc5;border-color:#80504d}.hell-mode .primary{background:#c75631;color:white}.hell-mode .secondary,.hell-mode .chip{background:#352432;color:#ffe0bb;border-color:#80504d}.hell-mode .feedback{color:#1c372e}.hell-mode .feedback.bad{color:#542726}.hell-mode .topnav button,.hell-mode .bottomnav button{color:#e6c3ad}.hell-mode .bottomnav{background:#251b26;border-color:#684349}.hell-banner{display:flex;align-items:center;justify-content:center;gap:25px;margin-top:12px}.hell-banner .hell-art{width:225px}.hell-banner span{display:block;letter-spacing:3px;color:#e79465;font-size:12px}.hell-banner strong{font-size:42px;font-family:"Times New Roman",Times,"Songti SC","SimSun",serif;color:#ffe0b4}.gate-flame{animation:flicker 1.8s ease-in-out infinite alternate;transform-origin:bottom}@keyframes flicker{to{opacity:.7;transform:scaleY(.94)}}.mine-quiz{max-width:1100px!important}.arcade-mine{margin:20px -10px 0;border:4px solid #6c4327;border-radius:14px;overflow:hidden;background:#805328;box-shadow:0 14px 40px #49372f30;position:relative}.arcade-mine canvas{width:100%;height:auto;display:block;touch-action:manipulation;cursor:crosshair}.arcade-mine canvas:focus-visible{outline:4px solid #f2c264;outline-offset:-5px}.mine-note{background:#392719;color:#ffe5a5;padding:10px 12px;font-size:14px;text-align:center}.hell-mode .mine-note{background:#211321;color:#ffbb83}.hell-mode .arcade-mine{border-color:#a24a34}.hell-mode .muted{color:#c9afaa}@media(max-width:760px){.hell-banner{gap:10px}.hell-banner .hell-art{width:140px}.hell-banner strong{font-size:30px}.mine-quiz .panel{padding:12px}.mine-quiz h2{font-size:22px}.arcade-mine{margin:15px -8px 0}.mine-note{font-size:12px}.hell-card .hell-art{width:180px}}@media(prefers-reduced-motion:reduce){.gate-flame{animation:none}}

[data-sound-toggle]{font-size:14px;border:1px solid var(--line);border-radius:18px;padding:7px 10px;white-space:nowrap}.settings-grid label{display:block;margin-top:14px}.settings-grid input[type=range]{display:block;width:100%}@media(max-width:600px){.header-right{gap:4px}[data-sound-toggle]{font-size:12px;padding:6px}.brand strong{font-size:16px}.brand svg{width:34px}.header-right .chip{display:none}}
/* r5: focused learning and explicit access states */
.focused-study .topnav,.focused-study .bottomnav{display:none}.focused-study .shell{max-width:1120px}.focused-study #main{padding-top:28px}.card-top,.card-top>div,.card-bottom{display:flex;align-items:center;justify-content:space-between;gap:14px}.card-top{margin-bottom:24px}.learning-path{display:flex;justify-content:center;gap:24px;margin:20px 0;color:var(--muted)}.learning-path .active{color:var(--red);font-weight:bold}.study-card{border:1px solid var(--line);border-radius:30px;padding:40px;min-height:390px;text-align:center;margin-top:20px;display:flex;flex-direction:column;justify-content:center;box-shadow:0 18px 40px #49372f10}.study-card.front{background:var(--red);color:var(--cream)}.study-card.front .eyebrow{color:#e7c894}.study-card h1{font-size:clamp(36px,7vw,76px);letter-spacing:0;margin:28px 0}.study-card h2{font-size:32px}.study-card.back{background:var(--white)}.card-pinyin,.card-sample{font-size:25px}.card-flip{margin-top:24px;align-self:center;opacity:.8}.card-tools,.shortcut-line{display:flex;justify-content:center;align-items:center;gap:16px;margin:20px 0}.card-rating{margin-top:24px}.card-rating button{min-height:58px}.usage-box{padding:20px;background:#f2e5d2;border-radius:16px;margin:15px 0;text-align:left}.card-examples{display:grid;grid-template-columns:1fr 1fr;gap:16px}.card-examples article{border:1px solid var(--line);border-radius:18px;padding:20px}.card-examples .han{font-size:27px}.study-card form{margin-top:24px;text-align:left}.study-card form .row{margin-top:10px}.study-card input{flex:1;min-width:0}.card-finish{padding:25px;text-align:center;background:#e8eee6;border-radius:20px;margin:24px 0}.card-finish button{display:block;margin:15px auto 0}.access-note,.required-review{background:#f4e6d1;border-left:4px solid var(--gold);padding:18px 22px;border-radius:12px;margin:20px 0}.required-review p{margin:6px 0}.exercise-menu{max-width:920px;margin:0 auto}.result-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:25px 0}.result-grid>div{border:1px solid var(--line);padding:25px 12px;border-radius:20px;text-align:center}.result-grid strong{display:block;font-size:36px;color:var(--red)}.result-grid span{display:block;color:var(--muted)}.difficulty-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.difficulty-tabs button{border:1px solid var(--line);padding:20px 10px;border-radius:18px;display:flex;flex-direction:column;align-items:center;gap:8px}.difficulty-tabs strong{font-size:24px}.difficulty-tabs .selected{background:var(--red);color:var(--cream)}.difficulty-tabs .stars{color:#dfb45a}.rules-box{background:#f4ecdf;border-radius:20px;padding:24px;margin-top:20px}.begin-button{display:block;min-width:240px;margin:24px auto 0}.cards-expanded .study-card{min-height:65vh}.settings-grid select{display:block;width:100%;font:inherit;padding:12px;margin-top:8px;border:1px solid var(--line);border-radius:12px;background:var(--white)}
@media(max-width:600px){.study-card{padding:24px 18px;border-radius:22px;min-height:360px}.card-top{align-items:flex-start}.card-top>div{flex-direction:column;align-items:flex-start;gap:5px}.learning-path{gap:12px;font-size:14px}.card-examples{grid-template-columns:1fr}.study-card form .row{flex-wrap:wrap}.study-card input{flex-basis:100%}.shortcut-line{font-size:12px;gap:7px}.result-grid{grid-template-columns:1fr 1fr;gap:10px}.result-grid>div{padding:16px 8px}.difficulty-tabs{gap:7px}.difficulty-tabs strong{font-size:20px}.difficulty-tabs small{font-size:11px}.exercise-menu{padding:20px 14px}.exercise-menu>.row{align-items:flex-start;flex-direction:column}.card-rating{display:grid;grid-template-columns:1fr 1fr;gap:10px}.card-tools{gap:8px}.card-tools button{font-size:14px}}

.grammar-card h1{font-size:clamp(30px,4.5vw,52px)}
.difficulty-tabs{grid-template-columns:repeat(3,minmax(0,1fr))}.difficulty-tabs button{min-width:0}.difficulty-tabs .stars{font-size:30px;letter-spacing:3px}@media(max-width:600px){.difficulty-tabs .stars{font-size:21px;letter-spacing:0}.difficulty-tabs strong{font-size:18px}.difficulty-tabs button{padding:16px 4px}.difficulty-tabs small{text-align:center}}
.lesson-picker{display:flex;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}.lesson-picker label{font-weight:bold;white-space:nowrap}.lesson-picker select{font:inherit;font-size:18px;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:12px;max-width:100%;flex:1;min-width:0}@media(max-width:600px){.lesson-picker{gap:8px;align-items:stretch;flex-direction:column}.lesson-picker select{font-size:16px;width:100%}}
/* r8: a clear, persistent course menu */
.shell,.focused-study .shell{max-width:1480px;padding:0 28px}.workspace{display:grid;grid-template-columns:274px minmax(0,1fr);gap:30px;align-items:start}.workspace-content{min-width:0}.course-sidebar{position:sticky;top:18px;max-height:calc(100dvh - 36px);overflow:auto;margin:26px 0;background:var(--white);border:1px solid var(--line);border-radius:18px;scrollbar-width:thin;box-shadow:var(--shadow)}.sidebar-heading{position:relative;padding:24px;background:var(--red);color:var(--cream);border-radius:17px 17px 0 0}.sidebar-heading .eyebrow{color:#e3c887;font-size:10px}.sidebar-heading h2{font-size:28px;margin:8px 0}.sidebar-heading p{font-size:14px;margin:0;opacity:.85}.hsk-levels{padding:16px;display:grid;grid-template-columns:1fr 1fr;gap:8px}.hsk-current{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;padding:14px;border:1px solid #c9a45d;background:#f5ebd9;border-radius:10px}.hsk-current strong{color:var(--red);font-size:21px}.hsk-current span{font-size:13px}.hsk-levels button{background:#eeeae3;border-radius:8px;padding:9px;font-size:16px}.hsk-levels small{display:block;font-size:12px}.side-modules{padding:0 15px 16px;border-bottom:1px solid var(--line)}.side-modules p,.sidebar-lessons>p{font-size:11px;letter-spacing:1px;color:var(--muted);font-weight:bold;margin:8px 0 10px}.side-modules button{display:flex;gap:14px;align-items:center;width:100%;text-align:left;min-height:43px;border-radius:9px;padding:8px 13px;font-size:16px}.side-modules button span{font-size:21px;min-width:25px}.side-modules button.active{background:#f4e6df;color:var(--red);font-weight:bold}.side-modules button:hover,.lesson-link:hover{background:#f6eee3}.sidebar-lessons{padding:16px 10px}.sidebar-lessons>p{padding:0 7px}.lesson-list{display:grid;gap:5px}.lesson-link{display:flex;align-items:center;gap:10px;width:100%;padding:12px 9px;border:1px solid transparent;border-radius:11px;text-align:left}.lesson-link>span:nth-child(2){min-width:0;flex:1}.lesson-link strong{display:block;font-size:16px;font-weight:500;line-height:1.35}.lesson-link small{display:block;color:var(--muted);font-size:12px;margin-top:4px}.lesson-link .lesson-number{display:grid;place-items:center;flex-shrink:0;width:32px;height:35px;border-radius:7px;background:#eee6dc;font-size:16px}.lesson-link.active{border-color:#c9a45d;background:#faf0de;color:var(--red)}.lesson-link.active .lesson-number{background:var(--red);color:var(--cream)}.mobile-menu-button,.sidebar-close,.menu-scrim{display:none}.workspace #main{padding-top:30px}.workspace .hero{grid-template-columns:1fr .8fr}.workspace .hero h1{font-size:clamp(30px,3.2vw,45px)}.workspace .grid{grid-template-columns:repeat(2,minmax(0,1fr))}.workspace .course{min-height:230px}.card-samples{display:grid;gap:8px;margin:12px 0}.card-samples .card-sample{margin:0;font-size:26px;line-height:1.5}.recorder-tools{margin:20px 0;padding:20px;border:1px solid var(--line);border-radius:12px;background:#f6efe3}.recorder-tools button{margin:5px}.recorder-tools audio{max-width:100%;display:block;margin-top:12px}.recorder-tools p{margin:6px 0}.hell-mode .recorder-tools{background:#2b1c2b;border-color:#9b5c41}
@media(min-width:1100px){.workspace .course .foot{font-size:13px}.workspace .course p{font-size:14px}.workspace .hero p{font-size:16px}}
@media(max-width:1000px){.shell,.focused-study .shell{padding:0 18px}.workspace{display:block}.course-sidebar{display:none}.mobile-menu-button{display:flex;width:100%;justify-content:space-between;margin:16px 0 0;font-size:17px}.mobile-menu-button span{font-size:13px;font-weight:normal}.menu-open .course-sidebar{display:block;position:fixed;inset:14px auto 14px 14px;width:min(340px,88vw);margin:0;z-index:51;max-height:calc(100dvh - 28px);overflow:auto}.menu-open .menu-scrim{display:block;position:fixed;inset:0;z-index:50;background:#30251e70}.sidebar-close{display:block;position:absolute;top:12px;right:12px;font-size:26px;color:var(--cream);width:36px;height:36px}.workspace .hero{grid-template-columns:1fr 1fr}.workspace #main{padding-top:24px}.workspace footer{padding-bottom:90px}.focused-study .workspace footer{padding-bottom:24px}}
@media(max-width:600px){.workspace .hero{grid-template-columns:1fr}.workspace .hero-art{display:none}.workspace .hero h1{font-size:37px}.workspace .grid{gap:10px}.workspace .course{padding:20px 14px;min-height:235px}.workspace .course p{font-size:14px}.card-samples .card-sample{font-size:23px}.workspace .stats .stat{padding:12px 8px}.workspace .stats .stat strong{font-size:25px}.workspace .stats .stat span{font-size:12px}.mobile-menu-button span{max-width:130px;line-height:1.3;text-align:right}}
.recording-practice{margin:20px 0;border:1px solid var(--line);border-radius:12px;padding:18px;background:#f6efe3}.recording-practice audio{display:block;width:100%;max-width:32rem;margin-top:12px}.recording-practice .row{margin:10px 0}.hell-mode .recording-practice{background:#2b1c2b;border-color:#9b5c41}
@media(min-width:1001px){.course-sidebar{display:flex;flex-direction:column}.sidebar-heading{order:0;padding:20px}.hsk-levels{order:1;padding:12px}.sidebar-lessons{order:2;padding-top:4px}.side-modules{order:3;border-top:1px solid var(--line);border-bottom:0;padding-top:12px}.lesson-list{max-height:330px;overflow:auto;scrollbar-width:thin;padding-right:5px}.sidebar-lessons>p{position:sticky;top:0}.hsk-current{padding:10px}.hsk-levels button{padding:5px}.side-modules button{min-height:39px}}
.course-sidebar{overscroll-behavior:contain}

/* Course and speech practice controls retain the approved study layout. */
.hsk-levels button{white-space:normal;text-align:left}.hsk-levels button small{display:block;font-size:13px}.hsk-levels .hsk-current{border:1px solid var(--red);background:var(--red);color:var(--cream)}
.recording-panel summary{cursor:pointer;font-weight:700}.recording-panel[open] summary{margin-bottom:16px}.pronunciation-score .result-grid{margin:16px 0;gap:8px}.pronunciation-score .result-grid strong{font-size:24px}.score-words{display:flex;flex-wrap:wrap;gap:8px}.recording-practice .han{overflow-wrap:anywhere}

.hsk-levels .hsk-current strong{color:var(--cream)}

.assessment-unavailable{color:var(--brown);padding:14px 18px;background:#f5ebd9;border-left:4px solid var(--gold);border-radius:8px;margin:14px 0}.assessment-unavailable p{margin:4px 0}