:root{--muted:#5d6c84;--line:#e1e8f2;--sidebar-width:246px;--shadow:0 4px 18px #18365d04}body{font-size:15px;line-height:1.5}.sidebar{width:var(--sidebar-width);padding:26px 18px 20px;overflow-y:auto}.shell{margin-left:var(--sidebar-width)}.brand{padding:0 10px 23px}.collapse-toggle{display:flex;align-items:center;gap:12px;width:100%;padding:9px 13px;margin-bottom:23px;color:var(--muted);font-size:12px;border:1px solid var(--line);border-radius:9px}.nav-label{font-size:10px;color:var(--muted)}nav{gap:5px}nav a{font-size:13px;padding:12px 13px;gap:12px;min-height:46px}nav a:hover{background:#f3f6fc;color:var(--blue)}.icon{flex-shrink:0;vertical-align:middle}.side-note{margin:28px 8px 16px;padding:18px 8px}.side-note p{font-size:12px}.profile{margin-top:auto}.profile-name{font-weight:600}.profile small{font-size:10px}.avatar{flex-shrink:0}header{padding:0 36px;height:84px;gap:20px}.header-actions{gap:18px}.header-actions button{font-size:13px;min-width:190px;color:var(--muted)}.local-badge{font-size:11px;color:#08756c}#breadcrumb{display:flex;gap:11px;align-items:center;font-size:12px;min-width:0}#breadcrumb a{color:var(--muted)}#breadcrumb span:last-child{color:var(--ink)}.header-notification{border:1px solid var(--line);border-radius:10px;padding:8px 12px;color:var(--muted);font-size:19px}.header-avatar{background:#e8effc;color:var(--blue);border:3px solid white;box-shadow:0 0 0 1px var(--line);border-radius:50%;width:38px;height:38px;display:grid;place-items:center;font-weight:600}main{max-width:1400px;padding:36px 36px 50px}h1{font-size:32px;margin:10px 0 9px;letter-spacing:-1px}h2{font-size:20px}h3{font-size:15px}.eyebrow{font-size:10px;letter-spacing:1.6px}.subtitle{font-size:14px;margin-bottom:0}.top-title{margin-bottom:26px}.date-chip{font-size:12px;padding:11px 14px}.stats{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:26px 0}.stat{padding:20px;box-shadow:var(--shadow);transition:border-color .16s,transform .16s;min-width:0;text-align:left}.stat:hover{border-color:#aec8f7;transform:translateY(-2px)}.stat-top{display:flex;justify-content:space-between;align-items:center}.stat-icon{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:10px;background:#eef4ff;color:var(--blue)}.stat-arrow{color:#8394ae;font-size:16px}.stat strong{font-size:29px;margin:13px 0 4px;line-height:1.3}.stat strong small{font-size:13px}.stat-label{font-size:13px;font-weight:600;display:block}.stat-detail{display:block;font-size:10px!important;line-height:1.6;margin-top:5px}.dashboard{grid-template-columns:minmax(0,1fr) 290px;gap:24px}.main-column{min-width:0}.session-hero{padding:30px;min-height:353px;align-items:flex-start;background:linear-gradient(115deg,#eaf1ff,#f0f5ff);border-color:#d8e5fc}.hero-copy{width:75%}.session-hero h2{font-size:29px;max-width:440px;letter-spacing:-.8px}.session-hero p{font-size:13px;max-width:420px}.pill{font-size:10px}.session-meta{display:flex;gap:19px;font-size:11px;color:#465d80;flex-wrap:wrap}.session-meta .icon{width:15px;height:15px;margin-right:4px}.session-steps{display:flex;gap:10px;align-items:center;margin:17px 0 16px;font-size:11px;color:#48628b;flex-wrap:wrap}.session-steps .icon{width:15px;height:15px;margin-right:3px}.session-progress{max-width:375px;margin:0 0 20px}.session-progress>div:first-child{display:flex;justify-content:space-between;font-size:11px;margin-bottom:8px;color:#4f6381}.session-progress b{color:var(--blue)}.progress-track{height:6px;background:#e8edf6}.session-progress .progress-track{background:#d7e3fa}.primary{font-size:13px;padding:12px 18px;gap:16px}.primary .icon{width:18px;height:18px}.session-note{display:block;font-size:10px;color:#5e7294;margin-top:11px}.hero-art{right:-24px;bottom:0;width:220px;height:300px;pointer-events:none}.hero-art .circle{inset:45px 0 25px;background:#dce7fb}.hanzi-art{font-size:100px;top:40px;right:35px;color:#a8c0ed}.art-caption{position:absolute;top:170px;right:55px;writing-mode:vertical-rl;font:14px 'Noto Sans SC';letter-spacing:5px;color:#738fbd}.pagoda{right:26px;opacity:.65}.section-head{margin:29px 0 16px;gap:12px}.section-head h2{margin-bottom:3px}.section-description{font-size:12px;color:var(--muted);margin:0}.text-link{font-size:12px;white-space:nowrap}.hsk-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.level-card{min-width:0;min-height:0;padding:18px;border-radius:13px;transition:border-color .16s,box-shadow .16s;display:block;box-shadow:var(--shadow)}.level-card:hover{border-color:#9abbf5;box-shadow:0 7px 22px #244b8810}.level-card.is-current{border-color:#a8c5f8}.level-card-top{display:flex;justify-content:space-between;align-items:center;gap:6px;margin-bottom:16px}.level-icon{font-size:18px;display:grid;place-items:center;width:35px;height:35px;padding:0;border-radius:9px}.level-status{font-size:9px;color:var(--muted);border-radius:20px;background:#f2f5fa;padding:4px 7px;white-space:nowrap}.level-status.complete{color:#087568;background:#e7f5f0}.level-card h3{font-size:14px;line-height:1.7}.level-card h3 span{font-size:12px;font-weight:500}.level-card p{font-size:11px;min-height:0;margin:5px 0 17px;line-height:1.6}.level-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:10px;margin-bottom:8px}.level-meta b{color:var(--blue)}.level-card-bottom{display:flex;justify-content:space-between;gap:5px;margin-top:15px;font-size:9px;color:var(--muted)}.level-card-bottom b{color:var(--blue);font-size:10px;white-space:nowrap}.coverage-note{display:flex;align-items:flex-start;gap:7px;color:var(--muted);font-size:10px;line-height:1.8;margin:12px 0 0}.coverage-note .icon{width:14px;height:14px;margin-top:2px}.practice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.skill-card{display:flex;gap:13px;border:1px solid var(--line);background:white;border-radius:13px;padding:19px;transition:border-color .16s}.skill-card:hover{border-color:#a9c3ee}.skill-card>div{min-width:0}.skill-card h3{font-size:13px;margin:1px 0 5px}.skill-card p{font-size:11px;line-height:1.7;color:var(--muted);margin:0 0 8px}.skill-icon{display:inline-grid;place-items:center;width:39px;height:39px;border-radius:11px;background:#edf3ff;color:#3b6bc1;flex-shrink:0}.tint-1{background:#edf6f9;color:#427e9a}.tint-2{background:#f0f0fc;color:#7371ad}.skill-status{font-size:9px;color:#68778d}.skill-status.ready{color:#245bbb}.card{box-shadow:var(--shadow)}.right-col{gap:20px}.target{padding:22px}.target-head h3{font-size:15px}.ring{width:143px;height:143px;margin:24px auto 17px}.ring>div{width:124px;height:124px}.ring b{font-size:29px}.ring-denominator{font-size:15px;color:var(--muted)}.ring small{font-size:11px}.target p.target-message{font-size:12px;color:var(--ink)}.target-detail{display:flex;justify-content:space-between;gap:10px;font-size:11px;color:var(--muted);padding:10px 0;border-top:1px solid var(--line)}.target-detail b{color:var(--ink)}.target-link{display:block;margin-top:13px}.target p.timer-note{font-size:10px;line-height:1.7;text-align:left;margin:13px 0 0}.review-card{background:#f2f6ff;border-color:#dce7fa;padding:22px}.review-symbol{display:inline-flex;background:white;color:var(--blue);padding:9px;border-radius:10px;margin-bottom:14px}.review-card h3{font-size:15px}.review-count{font-size:30px;font-weight:700;color:var(--ink);margin:12px 0}.review-count span{font-size:11px;font-weight:400;color:var(--muted)}.review-card p{color:var(--muted);font-size:12px}.review-card .secondary{display:flex;align-items:center;justify-content:space-between;background:white;color:var(--blue);border-color:#d3e0f6;font-size:12px}.review-card .secondary .icon{width:16px;height:16px}.word-day .hanzi{display:block;font:43px 'Noto Sans SC';margin:16px auto 7px;color:var(--ink)}.word-day .mini-label{font-size:10px}.local-info{display:flex;align-items:flex-start;gap:10px;font-size:11px;color:var(--muted);padding:0 8px}.local-info .icon{width:17px;height:17px;color:#387e78;margin-top:4px}.local-info p{margin:0}.local-info a{color:var(--blue)}.unavailable,.practice-intro{max-width:740px;padding:30px;margin-top:26px}.unavailable h2,.practice-intro h2{margin-top:24px}.unavailable p,.practice-intro p{font-size:14px}.notice{font-size:13px;color:#405e8f}.mini-label{font-size:11px}.search{margin-top:28px}.word-row p{font-size:13px}.word-row .pinyin{font-size:13px}.word-row .grow{min-width:0}.word-hanzi{overflow-wrap:anywhere}.badge{flex-shrink:0}.subtitle{margin-bottom:22px}.top-title .subtitle{margin-bottom:0}button:disabled{cursor:not-allowed;opacity:.55}button:disabled:hover{transform:none}.skip-link{position:fixed;top:-100px;left:12px;padding:12px;background:white;border:2px solid var(--blue);z-index:20}.skip-link:focus{top:10px}.sidebar-collapsed{--sidebar-width:82px}.sidebar-collapsed .brand{padding-left:0;justify-content:center}.sidebar-collapsed .brand>span:not(.brand-icon),.sidebar-collapsed .nav-text,.sidebar-collapsed .nav-label,.sidebar-collapsed .side-note,.sidebar-collapsed .profile{display:none}.sidebar-collapsed .collapse-toggle{justify-content:center;padding:9px 0}.sidebar-collapsed nav a{justify-content:center;padding:12px 0}.sidebar-collapsed .brand-icon{font-size:22px;padding:7px 11px}footer{color:var(--muted);font-size:11px}main,section,aside{min-width:0}p,h1,h2,h3{overflow-wrap:anywhere}a,button{ -webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid #b47a00;outline-offset:3px}
@media(min-width:1550px){main{padding:42px 40px 60px}.session-hero{padding:34px}.hero-copy{width:73%}.session-hero h2{font-size:32px}.hsk-grid{gap:16px}.level-card{padding:21px}.practice-grid{gap:16px}.skill-card{padding:22px}}
@media(max-width:1180px){:root{--sidebar-width:220px}header{padding:0 25px}.header-actions{gap:12px}.header-actions button{min-width:145px}.local-badge{display:none}main{padding:28px 25px}.dashboard{grid-template-columns:minmax(0,1fr) 245px;gap:18px}.session-hero{padding:25px}.hero-art{right:-67px;opacity:.6}.hero-copy{width:90%}.hsk-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stats{gap:12px}.stat{padding:16px}.stat-detail{font-size:9px!important}.skill-card{padding:16px;gap:10px}.skill-icon{width:32px;height:32px}.target{padding:18px}}
@media(max-width:950px){:root{--sidebar-width:190px}.dashboard{grid-template-columns:1fr}.right-col{display:grid;grid-template-columns:1fr 1fr;align-items:start}.target{display:block}.word-day{display:none}.local-info{grid-column:1/-1}.hero-copy{width:75%}.hero-art{right:0;opacity:1}.hsk-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.header-actions button{min-width:0}.header-actions button span{display:none}nav a{font-size:11px;gap:10px;padding:11px 9px}.level-card{padding:14px}.level-card h3 span{display:block}.level-card-bottom{flex-wrap:wrap}.date-chip{display:none}}
@media(max-width:720px){.hsk-grid{grid-template-columns:repeat(2,minmax(0,1fr))}header{padding:0 18px;gap:12px}.header-actions{gap:9px}.header-notification{padding:7px 10px}main{padding:26px 18px}.practice-grid{grid-template-columns:1fr}.hero-copy{width:90%}.hero-art{right:-70px;opacity:.5}.stats{gap:10px}#breadcrumb{font-size:11px;gap:6px}.header-avatar{width:32px;height:32px}.header-actions button{padding:8px 10px}}
@media(max-width:600px){:root{--sidebar-width:0px}.sidebar,.sidebar-collapsed .sidebar{width:100%;height:74px;overflow:visible;padding:5px 3px calc(5px + env(safe-area-inset-bottom));inset:auto 0 0;border-right:0;z-index:8}.brand,.collapse-toggle,.nav-label,.side-note,.profile,.desktop-only{display:none!important}.shell,.sidebar-collapsed .shell{margin-left:0;padding-bottom:80px}nav{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0}nav a,.sidebar-collapsed nav a{display:flex;flex-direction:column;gap:5px;padding:7px 2px;min-height:56px;font-size:9px;line-height:1.2}nav .icon{width:21px;height:21px}.sidebar-collapsed .nav-text{display:inline}nav a .nav-text{display:block;max-width:100%;text-align:center;white-space:nowrap;font-size:9px}header{height:66px;padding:0 16px}.header-actions{gap:10px}.header-notification{border:0;padding:0 4px}.header-avatar{width:30px;height:30px}#breadcrumb>a{display:none}#breadcrumb>span[aria-hidden]{display:none}main{padding:25px 16px 34px}h1{font-size:28px}.eyebrow{font-size:9px}.subtitle{font-size:13px}.stats{margin:23px 0;gap:10px}.stat{padding:15px}.stat-top .stat-icon{width:31px;height:31px}.stat strong{font-size:26px;margin-top:11px}.stat-label{font-size:12px}.stat-detail{font-size:9px!important}.stat strong small{font-size:11px}.session-hero{min-height:375px;padding:24px}.hero-copy{width:100%}.session-hero h2{font-size:26px;max-width:230px}.session-hero p{font-size:12px;max-width:230px}.hero-art{right:-95px;opacity:.3}.session-meta{font-size:10px;gap:14px}.session-steps{font-size:10px}.session-progress{max-width:100%}.session-progress>div:first-child{font-size:10px}.section-head{align-items:flex-start;margin-top:27px}.section-head h2{font-size:19px}.section-description{font-size:11px;max-width:220px}.section-head .text-link{font-size:10px;padding-top:4px}.hsk-grid{gap:10px}.level-card{padding:15px}.level-status{font-size:8px;padding:4px 6px}.level-card h3{font-size:14px}.level-card h3 span{font-size:11px;display:block}.level-card-top{margin-bottom:11px}.level-card p{font-size:10px;min-height:33px;margin-bottom:12px}.level-meta{font-size:9px}.level-card-bottom{font-size:8px;gap:7px}.level-card-bottom b{font-size:10px}.practice-grid{grid-template-columns:1fr}.skill-card{padding:18px}.skill-icon{width:37px;height:37px}.skill-card h3{font-size:14px}.skill-card p{font-size:12px}.skill-status{font-size:10px}.right-col{display:flex;flex-direction:column}.right-col>*{width:100%}.target{display:block}.target .ring{margin:20px auto}.word-day{display:block}.local-info{padding:0 4px}.word-row{gap:9px;flex-wrap:wrap}.word-row .word-hanzi{min-width:55px;font-size:23px}.word-row .badge{font-size:8px}.word-row .favorite{padding:5px}.word-row .grow{flex:1;min-width:85px}.word-row p{font-size:12px}.search select{flex:1;min-width:0}.search input{flex-basis:100%}.lesson-wrap .subtitle{font-size:12px}.lesson-bottom{flex-wrap:wrap}.lesson-bottom .primary{margin-left:auto}footer{margin:0 16px}.notice{font-size:12px}.reading{letter-spacing:1px;font-size:23px}.header-actions button{min-width:32px}.unavailable,.practice-intro{padding:23px}#toast{bottom:92px;max-width:calc(100% - 24px);width:max-content;font-size:12px}}
#global-search{display:flex;align-items:center;border:1px solid var(--line);border-radius:9px;background:#f3f6fc;overflow:hidden;max-width:230px}#global-search input{border:0;background:transparent;width:175px;min-width:0;font-size:12px;padding:10px 12px}#global-search button{border:0;border-radius:0;min-width:34px;padding:9px;background:transparent}#global-search input:focus-visible{outline-offset:-3px}.header-notification .icon{width:18px;height:18px}.header-notification{display:inline-flex;align-items:center;justify-content:center}
@media(max-width:950px){#global-search{max-width:180px}#global-search input{width:135px}}
@media(max-width:600px){#global-search{max-width:175px}#global-search input{width:135px;font-size:11px;padding:9px}header{gap:8px}.header-actions{gap:8px}}
@media(max-width:370px){#global-search{max-width:135px}#global-search input{width:96px}.header-notification{display:none}}
@media(prefers-reduced-motion:reduce){.stat,.level-card,.skill-card{transition:none}.stat:hover{transform:none}}
.dataset-summary{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px;margin:24px 0}.dataset-summary>div{border:1px solid var(--line);background:white;border-radius:12px;padding:17px;min-width:0}.dataset-summary b{display:block;font-size:24px}.dataset-summary span{font-size:11px;color:var(--muted);display:block;line-height:1.6;margin-top:5px}.catalog-filter{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}.catalog-filter input{flex:1;min-width:180px}.catalog-filter select{max-width:210px;font-size:12px;min-width:0}.catalog-row .grow{min-width:0}.catalog-row p{overflow-wrap:anywhere}.word-actions{display:flex;align-items:center;gap:7px;flex-shrink:0}.word-actions>button:not(.favorite){min-width:34px}.word-actions .icon{width:18px;height:18px}.word-actions .secondary{font-size:11px;padding:8px 10px}.translation-label{display:block;font-size:10px;font-weight:400;color:#677892;margin:3px 0;line-height:1.7}.pagination{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:22px 0;font-size:12px;color:var(--muted)}.pagination button{font-size:12px}.level-card p.level-coverage{margin:12px 0 0;font-size:10px;min-height:0}.audit-table{overflow:auto;margin:25px 0;border:1px solid var(--line);border-radius:12px;background:white}.audit-table table{border-collapse:collapse;min-width:600px;width:100%;font-size:12px;text-align:left}.audit-table caption{padding:17px;text-align:left;font-weight:600;font-size:15px}.audit-table th,.audit-table td{padding:13px 16px;border-top:1px solid var(--line)}.audit-table th{background:#edf3ff}.detail-loading{font-size:12px;color:var(--muted);margin:15px 0}.skeleton{height:35px;background:linear-gradient(90deg,#edf2fa,#f9fbff,#edf2fa);border-radius:7px;margin-bottom:10px;background-size:200%;animation:shimmer 1.3s infinite}dialog hr{border:0;border-top:1px solid var(--line);margin:22px 0}dialog p{overflow-wrap:anywhere}dialog .pinyin{color:var(--blue)}dialog h2{font-size:18px}dialog a{color:var(--blue)}@keyframes shimmer{to{background-position:-200%}}
@media(max-width:1100px){.dataset-summary{grid-template-columns:repeat(3,minmax(0,1fr))}.catalog-filter select{max-width:180px}}
@media(max-width:600px){.dataset-summary{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.dataset-summary>div{padding:15px}.dataset-summary b{font-size:23px}.catalog-filter input{flex-basis:100%;min-width:0}.catalog-filter select{flex:1;max-width:100%;min-width:130px}.catalog-row{align-items:flex-start}.catalog-row .word-hanzi{max-width:90px}.word-actions{width:100%;justify-content:flex-end;border-top:1px solid var(--line);padding-top:9px}.word-actions .favorite{margin-right:4px}.pagination{flex-wrap:wrap;justify-content:center;font-size:11px}.pagination span{order:-1;flex-basis:100%;text-align:center}.pagination .secondary{font-size:11px;padding:9px 12px}.audit-table table{font-size:11px}.audit-table th,.audit-table td{padding:12px}.level-card p.level-coverage{font-size:9px}}
@media(prefers-reduced-motion:reduce){.skeleton{animation:none}}