:root{--font-body:'Noto Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;--font-ui:var(--font-body);--font-heading:var(--font-body);--text-2:#505058;--link-strong:#175e9f;--danger-text:#a43129;--surface:#fff;--surface-tint:#edf5ff;--surface-2:#e8e8ed;--danger-bg:#fff0ed;--ink:#1d1d1f;--muted:#6e6e73;--blue:#0066cc;--paper:#f5f5f7;--line:#e5e5e9;--radius:24px;--gutter:clamp(20px,4vw,88px)}
.review-audio h3{margin:12px 0}.review-audio p{font-size:.875rem;margin-bottom:20px}.review-audio audio{display:block;width:100%;margin:8px 0}
.admin-users-tools{gap:20px;flex-wrap:wrap}.admin-users-tools .search{display:flex;gap:10px;max-width:560px;flex:1}.admin-users-tools .search input{margin:0;min-width:0}.admin-users-table td{vertical-align:middle}.admin-person-heading{padding-top:0;overflow-wrap:anywhere}.admin-learning-course{margin-bottom:28px}.admin-learning-course h2{font-size:1.75rem;margin:8px 0}.admin-module-title{margin:26px 0 12px;font-size:1.125rem}.admin-lesson{border-bottom:1px solid var(--line)}.admin-lesson>summary{display:flex;align-items:center;gap:14px;cursor:pointer;padding:16px 0;list-style:none}.admin-lesson>summary::-webkit-details-marker{display:none}.admin-lesson>summary>span:nth-child(2){flex:1;min-width:0}.admin-lesson summary small{display:block;color:var(--muted);font-size:.8125rem}.admin-lesson-body{padding:0 0 24px 24px}.admin-lesson-body>p{font-size:.875rem;margin:12px 0}.learning-state{width:8px;height:8px;border-radius:50%;background:#8e8e93;flex:0 0 8px}.learning-state.completed{background:#34c759}.learning-state.started{background:#0071e3}.admin-work{padding:18px;background:var(--paper);border-radius:16px;margin-top:15px}.admin-work>small{margin-left:8px}.admin-work .prose{margin-top:14px}.pagination{justify-content:center;gap:24px;margin:20px 0 50px}.audio-recorder{background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:24px;margin:22px 0}.recorder-heading{display:flex;align-items:center;gap:15px}.recorder-mic{display:grid;place-items:center;flex:0 0 48px;height:48px;border-radius:15px;background:var(--surface);color:var(--blue)}.recorder-heading p{color:var(--text-2);font-size:.8125rem;margin:3px 0 0}.recorder-controls{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:20px 0 12px}.recorder-timer{font-variant-numeric:tabular-nums;font-size:.875rem;color:var(--text-2)}.recorder-status{font-size:.875rem;color:var(--text-2);margin-bottom:15px}.recorder-clear{font-size:.8125rem;color:var(--blue);margin:10px 0}.recorder-upload{border-top:1px solid var(--line);padding-top:18px;margin-top:16px}.recorder-upload input[type=file]{font-size:.8125rem;max-width:100%;padding:12px}.recorder-privacy{font-size:.75rem;color:var(--text-2);margin:14px 0 0}.recorder-controls .button{font-size:.875rem}@media(max-width:480px){.audio-recorder{padding:18px;border-radius:20px}.recorder-controls{align-items:stretch}.recorder-controls .button{flex:1}.admin-users-tools .search{flex-basis:100%;max-width:100%}.admin-lesson-body{padding-left:0}.admin-learning-course h2{font-size:1.5rem}.admin-users-table{min-width:620px}}
.login-intro{color:var(--muted);margin-bottom:28px}.auth-feedback{display:flex;align-items:flex-start;gap:12px;background:var(--paper);border:1px solid var(--line);padding:18px 20px;border-radius:18px;margin:0 0 24px}.auth-feedback-dot{width:6px;height:6px;flex:0 0 6px;background:#ff3b30;border-radius:50%;margin-top:10px}.auth-feedback strong{font-size:.9375rem;font-weight:600}.auth-feedback p{font-size:.875rem;line-height:1.6;margin:4px 0 0;color:var(--text-2)}.login-field-error{display:block;font-size:.875rem;color:var(--text-2)}.login-page form>.button{width:100%;margin-top:4px}.form-recovery{max-width:650px;margin:70px auto 90px;padding:clamp(28px,5vw,52px);border-radius:30px;border:1px solid var(--line);background:var(--paper);text-align:center}.recovery-icon{display:grid;place-items:center;width:68px;height:68px;background:var(--surface);border:1px solid var(--line);border-radius:21px;margin:0 auto 26px;color:var(--blue)}.form-recovery h1{font-size:clamp(1.875rem,calc(4vw*var(--ts,1)),2.75rem);margin:16px 0 24px}.form-recovery>p{font-size:1rem;color:var(--text-2);line-height:1.7;margin-bottom:14px}.recovery-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:30px}.recovery-actions .secondary{background:var(--surface);color:var(--ink)}@media(max-width:480px){.form-recovery{margin:35px auto 55px;border-radius:24px}.recovery-actions{flex-direction:column}.recovery-actions .button{width:100%}.auth-feedback{padding:16px}}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--surface);color:var(--ink);font:1rem/1.65 var(--font-body)}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}[hidden]{display:none!important}:focus-visible{outline:3px solid var(--blue);outline-offset:5px}h1,h2,h3,p,figure{margin:0 0 20px}h1,h2,h3{font-weight:650;line-height:1.12;letter-spacing:-.04em}h1{font-size:clamp(2rem,calc(4vw*var(--ts,1)),3.5rem)}h2{font-size:clamp(1.75rem,calc(3.1vw*var(--ts,1)),2.75rem);margin:28px 0 22px}h3{font-size:1.375rem;letter-spacing:-.025em}small,.small{font-size:.875rem}.container{width:100%;margin:auto;padding:0 var(--gutter)}main.container{min-height:65vh}.site-header{background:#ffffffed;border-bottom:1px solid var(--line);position:relative;z-index:20}.header-inner{min-height:86px;padding:16px var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;gap:12px;align-items:center;font-size:1.25rem;font-weight:650;line-height:1.2;letter-spacing:-.035em}.brand small{display:block;font-size:.75rem;font-weight:500;letter-spacing:1.5px;margin-top:6px;color:var(--muted)}.brand-mark{background:var(--blue);color:white;display:grid;place-items:center;width:42px;height:44px;border-radius:13px;font-size:1.6875rem;font-family:serif}nav{display:flex;align-items:center;gap:clamp(18px,2.5vw,42px);font-size:.875rem}nav a,nav .text-button{min-height:44px;display:inline-flex;align-items:center}.nav-login{background:var(--paper);padding:0 22px;border-radius:30px}.inline{display:inline;margin:0}.text-button{border:0;background:none;padding:0;color:var(--blue)}.menu-toggle{border:0;border-radius:12px;background:var(--paper);padding:10px 15px;min-height:44px}.menu-toggle span{margin-left:10px}.button{display:inline-flex;justify-content:center;align-items:center;gap:16px;padding:13px 25px;border:1px solid var(--blue);border-radius:30px;background:var(--blue);color:white;font-size:.9375rem;font-weight:500;min-height:48px;line-height:1.4;transition:background .15s,transform .15s}.button:hover{background:var(--button-hover,#0077ed);color:white;transform:translateY(-1px)}.button.secondary{background:var(--surface);color:var(--blue)}.button.secondary:hover{background:var(--surface-tint)}.button.light{background:var(--surface);color:var(--blue);border-color:white}.subtle-link{color:var(--blue);font-size:1rem;display:inline-flex;align-items:center;gap:10px;min-height:44px}.eyebrow{font-size:.75rem;letter-spacing:1.6px;font-weight:600;color:var(--muted)}
.hero{text-align:center;padding-top:clamp(38px,4vw,72px);position:relative}.hero-label{font-size:.8125rem;font-weight:550;color:var(--muted);margin-bottom:23px}.slides{display:grid;min-width:0}.hero-slide{grid-area:1/1;max-width:1100px;width:100%;margin:0 auto;display:flex;flex-direction:column;align-items:center;justify-content:flex-start}.hero-slide[hidden]{display:flex!important;visibility:hidden;pointer-events:none}.hero-slide h1,.hero-slide h2{font-size:clamp(2.5rem,calc(5.2vw*var(--ts,1)),5.125rem);line-height:1.03;letter-spacing:-.055em;margin:0 0 24px;max-width:100%;overflow-wrap:break-word}.hero-slide h1 span,.hero-slide h2 span,.bottom-banner h2 span{color:var(--blue)}.hero-slide p{font-size:clamp(1rem,calc(1.3vw*var(--ts,1)),1.3125rem);color:var(--muted);line-height:1.55;max-width:720px;margin-bottom:26px}.hero-actions{display:flex;align-items:center;justify-content:center;gap:28px;margin-top:auto}.carousel-controls{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:23px;position:relative;z-index:1}.carousel-arrow{width:44px;height:44px;background:var(--paper);color:var(--ink);border:0;border-radius:50%;font-size:1.3125rem}.carousel-arrow:hover{background:var(--surface-2)}.carousel-dots{display:flex;gap:2px;align-items:center}.carousel-dots button{border:0;width:30px;height:44px;position:relative;background:none;padding:0}.carousel-dots button:after{content:'';width:6px;height:6px;background:var(--control-line,#c7c7cc);border-radius:10px;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);transition:width .2s,background .2s}.carousel-dots button[aria-current=true]:after{width:22px;background:var(--blue)}.carousel-count{font-size:.75rem;color:var(--muted);min-width:36px}.hero-visual{margin:4px calc(-1 * var(--gutter)) 0;overflow:hidden}.hero-visual img{display:block;width:100%;height:auto;max-height:510px;object-fit:cover;object-position:center}.hero-note{font-size:.8125rem;color:var(--muted);padding:12px 0 35px;margin:0}
.course-section{background:var(--paper);margin:0 calc(-1 * var(--gutter));padding:clamp(38px,5vw,80px) var(--gutter)}.section-top{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-bottom:28px}.section-top h2{margin:10px 0 12px}.section-top p{margin:0}.search{display:flex;align-items:center;border:1px solid var(--line);border-radius:30px;background:var(--surface);width:260px;flex-shrink:0;overflow:hidden}.search input{border:0!important;background:none!important;margin:0!important;min-width:0;padding:11px 18px!important;font-size:.875rem}.search button{border:0;background:none;font-size:1.5625rem;min-width:46px;height:46px}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.course-card{border-radius:var(--radius);overflow:hidden;background:var(--surface);box-shadow:0 4px 25px #00000004;display:flex;flex-direction:column;transition:transform .2s}.course-card:hover{transform:translateY(-4px)}.course-cover{height:clamp(210px,19vw,300px);display:block;position:relative;overflow:hidden;background:var(--surface-tint)}.cover-blue,.cover-green{background:linear-gradient(135deg,#edf5ff,#dbeaff)}.cover-violet{background:linear-gradient(135deg,#f0edff,#e2def6)}.cover-sand,.cover-warm{background:linear-gradient(135deg,#fbf2e7,#f0e1ce)}.course-cover:before{content:'';width:220px;height:220px;border:1px solid #ffffffc0;border-radius:50%;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}.cover-symbol{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font:clamp(6.25rem,calc(11vw*var(--ts,1)),10.625rem)/1.3 'KaiTi','STKaiti','Kaiti SC','SimSun','Songti SC','Noto Serif SC',serif;color:var(--link-strong)}.cover-violet .cover-symbol{color:var(--link-strong,#655393)}.cover-sand .cover-symbol{color:var(--link-strong,#9a6740)}.pill{position:absolute;left:20px;top:20px;padding:4px 12px;background:var(--surface,#ffffffc9);border-radius:20px;font-size:.75rem;color:var(--text-2)}.cover-caption{position:absolute;bottom:20px;left:22px;font-size:.75rem;letter-spacing:2px;color:var(--text-2,#505968)}.cover-arrow{position:absolute;right:20px;bottom:18px;font-size:1.4375rem}.course-body{padding:28px;display:flex;flex-direction:column;flex:1}.course-body h3{margin:11px 0 14px;font-size:clamp(1.3125rem,calc(1.8vw*var(--ts,1)),1.75rem)}.course-body p{font-size:.875rem;color:var(--muted);line-height:1.65}.course-body .eyebrow{font-size:.75rem}.course-bottom{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:.75rem;border-top:1px solid var(--line);padding-top:18px;margin-top:auto;color:var(--muted)}.course-bottom a{color:var(--blue);font-size:.875rem;min-height:32px;display:inline-flex;align-items:center}.how-section{padding:clamp(45px,6vw,95px) 0}.centered{text-align:center}.benefit-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:42px}.benefit-strip article{padding:30px;background:var(--paper);border-radius:var(--radius)}.step-number{display:inline-grid;place-items:center;color:var(--blue);font-size:1.0625rem;font-weight:600;width:42px;height:42px;background:var(--surface);border-radius:14px;margin-bottom:24px}.benefit-strip h3{font-size:1.4375rem}.benefit-strip p{font-size:.9375rem;color:var(--muted);margin:0}.bottom-banner{text-align:center;background:var(--paper);border-radius:32px;padding:clamp(35px,5vw,75px) 24px;margin:0 0 65px}.bottom-banner h2{font-size:clamp(2.375rem,calc(5vw*var(--ts,1)),4.0625rem);margin:20px 0}.bottom-banner p{color:var(--muted)}.footer{display:flex;align-items:center;justify-content:space-between;gap:25px;border-top:1px solid var(--line);padding-top:30px;padding-bottom:30px;color:var(--muted);font-size:.75rem}.footer .brand{font-size:1.5rem;color:var(--blue)}.footer .brand span{font-size:.75rem;font-weight:400;letter-spacing:0;color:var(--muted)}.footer>div{display:flex;gap:25px;flex-wrap:wrap}.footer a{min-height:32px;display:inline-flex;align-items:center}
/* Shared learning, account and authoring components. */
input:not([type=checkbox]):not([type=radio]),textarea,select{display:block;width:100%;border:1px solid var(--control-line,#d2d2d7);border-radius:12px;background:var(--surface);padding:12px 14px;margin:6px 0 16px;color:var(--ink)}input[type=checkbox],input[type=radio]{accent-color:var(--blue)}label{font-size:.875rem;font-weight:550}textarea{min-height:130px;resize:vertical}.page-heading{padding:50px 0 25px}.page-heading h1{margin:14px 0 20px}.page-heading p,.lead{color:var(--muted);font-size:1.125rem}.breadcrumb{display:block;margin:28px 0;font-size:.875rem;color:var(--muted)}.detail-hero{display:grid;grid-template-columns:2fr 1fr;gap:60px;align-items:center;margin:40px 0}.page-title{font-size:clamp(2rem,calc(4vw*var(--ts,1)),3.25rem);margin:18px 0 24px}.detail-symbol{height:290px;display:grid;place-items:center;background:var(--surface-tint);color:var(--link-strong);font:11.25rem serif;border-radius:var(--radius)}.two-column{display:grid;grid-template-columns:minmax(0,2fr) minmax(270px,1fr);gap:36px;margin:35px 0 65px;align-items:start}.panel{border:1px solid var(--line);border-radius:20px;background:var(--surface);padding:28px;min-width:0}.panel p{color:var(--muted);font-size:.875rem}.panel .button{margin:8px 0}.module{border:1px solid var(--line);border-radius:16px;margin:15px 0;background:var(--surface);overflow:hidden}.module summary{padding:20px;cursor:pointer;font-weight:600}.lesson-row{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:15px 22px;border-top:1px solid var(--line);font-size:.875rem}.lesson-row small{color:var(--muted)}.badge{display:inline-block;font-size:.75rem;padding:5px 10px;background:var(--surface-tint);color:var(--link-strong);border-radius:20px}.progress-track{height:6px;border-radius:8px;overflow:hidden;background:var(--surface-2);margin:24px 0 10px}.progress-track span{display:block;height:100%;background:var(--blue)}.work{margin-bottom:18px}.work h3{margin:0}blockquote{border-left:3px solid var(--blue);background:var(--surface-tint);padding:18px;margin:18px 0}blockquote small{display:block;color:var(--muted)}.muted{color:var(--muted)}.prose{line-height:1.9;overflow-wrap:anywhere}.form-page{max-width:520px;margin:65px auto 90px}.form-page.wide{max-width:780px}.form-page h1{font-size:2.3125rem}.form-links{display:flex;justify-content:space-between;flex-wrap:wrap;gap:15px;margin-top:25px;font-size:.875rem}.form-links a,.add-link{color:var(--blue)}.errorlist{color:var(--danger-text);background:var(--danger-bg);padding:12px 25px;font-size:.875rem}.helptext{display:block;font-size:.8125rem;color:var(--muted);margin-top:-10px;margin-bottom:18px}.helptext ul{padding-left:20px}.notice{padding:16px 20px;background:var(--surface-tint);border:1px solid var(--notice-line,#cddff4);border-radius:14px;font-size:.875rem;margin:22px 0}.notice.error{background:var(--danger-bg);border-color:var(--danger-line,#e8bcb6)}.pricing-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;max-width:1040px;margin:20px auto 80px}.pricing-card{border:1px solid var(--line);border-radius:var(--radius);padding:35px;background:var(--surface)}.pricing-card.featured{border:2px solid var(--blue);background:var(--surface-tint)}.pricing-card h2{margin:12px 0 25px}.price{font-size:2.5rem;letter-spacing:-1px}.price small{font-size:.875rem;color:var(--muted);letter-spacing:0}.feature-list{list-style:none;padding:0;margin:25px 0}.feature-list li{margin:12px 0;font-size:.875rem}.feature-list li:before{content:'✓';color:var(--blue);margin-right:12px}.pricing-card .button{width:100%;margin:12px 0}.learning-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:45px;margin-bottom:70px}.lesson-sidebar{border-right:1px solid var(--line);padding-right:20px}.lesson-sidebar h3{font-size:.9375rem;margin:22px 0 8px;letter-spacing:0}.sidebar-link{display:block;font-size:.875rem;padding:11px 13px;border-radius:10px}.sidebar-link small{display:block;color:var(--muted);font-size:.75rem}.sidebar-link.selected{background:var(--surface-tint);color:var(--link-strong)}.lesson-content{max-width:850px;min-width:0}.lesson-block{margin:24px 0}.vocabulary{padding:38px;background:var(--surface-tint);border:1px solid var(--line,#e0eaf6);border-radius:20px;text-align:center}.hanzi{display:block;font:4.625rem/1.4 serif;color:var(--link-strong)}.pinyin{display:block;font-size:1.75rem;color:var(--blue)}.vocabulary p{margin:8px 0 0;color:var(--muted)}.option{display:block;border:1px solid var(--line);border-radius:12px;padding:12px 15px;margin:10px 0;background:var(--paper)}.quiz .button{margin-top:15px}.assignment{border-top:1px solid var(--line);margin-top:40px;padding-top:35px}audio,video{width:100%;max-width:100%;border-radius:14px}.editor-module{padding:20px}.editor-module h3{font-size:1.125rem;margin:0}.editor-module .section-top a{font-size:.875rem}.editor-lesson{padding:18px;background:var(--paper);margin:12px 0;border-radius:14px}.block-row{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:12px 0;font-size:.875rem}.add-link{font-size:.875rem;display:block;margin:12px 0}.file-link{display:block;padding:20px;border:1px solid var(--line,#d8e5f5);border-radius:14px;background:var(--surface-tint)}.empty{padding:30px;background:var(--paper);border-radius:16px;grid-column:1/-1}.table-wrap{overflow:auto;margin-bottom:50px}table{border-collapse:collapse;width:100%;background:var(--surface)}th,td{text-align:left;padding:14px;border-bottom:1px solid var(--line);font-size:.875rem}.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px;background:var(--surface);padding:10px;z-index:100}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.form-page .button+.button{margin-top:12px}
@media(min-width:1900px){.course-body{padding:36px}.course-grid{gap:32px}.hero-slide h1,.hero-slide h2{font-size:5.5rem}}
@media(max-width:1000px){.header-inner{gap:15px}nav{gap:16px}.brand{font-size:1.125rem}.brand small{font-size:.75rem}.benefit-strip article{padding:24px}.benefit-strip h3{font-size:1.3125rem}.course-body{padding:22px}.course-bottom{flex-direction:column;align-items:flex-start}.learning-layout{grid-template-columns:210px minmax(0,1fr);gap:25px}}
@media(max-width:760px){.header-inner{min-height:76px;flex-wrap:wrap}.menu-toggle:not([hidden]){display:block}nav{width:100%;flex-wrap:wrap;gap:8px 22px;padding:8px 0}nav[data-collapsible]:not(.is-open){display:none}.hero-slide h1,.hero-slide h2{font-size:clamp(2.3125rem,calc(7vw*var(--ts,1)),3.4375rem)}.hero-slide p{font-size:1.0625rem;max-width:520px}.hero-actions{gap:16px;flex-wrap:wrap}.hero-visual img{height:300px;object-fit:cover;width:100%;max-height:none}.hero-note{font-size:.75rem;padding-bottom:26px}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.course-cover{height:200px}.cover-symbol{font-size:7.5rem}.section-top{flex-wrap:wrap}.search{width:100%}.benefit-strip{grid-template-columns:1fr;gap:16px}.benefit-strip article{padding:28px}.step-number{margin-bottom:18px}.benefit-strip h3{font-size:1.5rem}.footer{flex-direction:column;align-items:flex-start}.two-column,.detail-hero,.learning-layout{grid-template-columns:1fr;gap:25px}.detail-symbol{height:200px;font-size:8.125rem}.lesson-sidebar{border:1px solid var(--line);border-radius:16px;padding:18px;max-height:230px;overflow:auto}.sidebar-link{padding:8px 10px}.pricing-card{padding:25px}.desktop-only{display:none}.hero-slide p{min-height:80px}.hero-visual{margin-top:12px}.bottom-banner{margin-bottom:40px}}
@media(max-width:480px){.brand{font-size:1.0625rem}.brand small{font-size:.75rem;letter-spacing:1.15px}.brand-mark{width:36px;height:39px;border-radius:11px;font-size:1.5rem}.menu-toggle{font-size:.8125rem;padding:10px 12px}.hero{padding-top:34px}.hero-label{font-size:.75rem;margin-bottom:20px}.hero-slide h1,.hero-slide h2{font-size:clamp(2.125rem,calc(8.8vw*var(--ts,1)),2.625rem);letter-spacing:-.05em;margin-bottom:20px}.hero-slide p{font-size:.9375rem;line-height:1.6;min-height:96px;margin-bottom:22px}.hero-actions{flex-direction:column;gap:5px}.hero-actions .button{font-size:.875rem;padding:13px 22px}.hero-slide .hero-actions{min-height:97px;justify-content:flex-start}.carousel-controls{margin-top:8px;gap:6px}.carousel-dots button{width:27px}.hero-visual img{height:245px;width:100%;object-fit:cover}.hero-note{font-size:.75rem}.course-grid,.pricing-grid{grid-template-columns:1fr}.course-cover{height:245px}.cover-symbol{font-size:9.375rem}.course-body{padding:26px}.course-body h3{font-size:1.625rem}.course-bottom{flex-direction:row;align-items:center}.section-top h2{font-size:2rem}.section-top p{font-size:.9375rem}.panel{padding:22px}.form-page{margin:40px auto 65px}.form-page h1{font-size:2rem}.vocabulary{padding:25px}.hanzi{font-size:3.75rem}.lesson-row{padding:15px;gap:12px}.footer>div{gap:12px}.bottom-banner h2{font-size:2.5rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
/* Keep tablet cards readable and the narrow-phone header on one line. */
@media(min-width:481px) and (max-width:1000px){.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:480px){.header-inner{column-gap:6px}.hero-slide h1,.hero-slide h2{font-size:clamp(2rem,calc(8.6vw*var(--ts,1)),2.625rem)}}
/* Compact carousel: the study photograph is scenery behind the live text. */
.hero{isolation:isolate;overflow:hidden;margin:0 calc(-1 * var(--gutter));padding:clamp(38px,4vw,72px) var(--gutter) 18px;min-height:610px;display:flex;flex-direction:column;justify-content:center}
.hero-backdrop{position:absolute;inset:0;z-index:-2;pointer-events:none;background:var(--surface-tint)}
.hero-backdrop img{width:100%;height:100%;object-fit:cover;object-position:50% 65%;opacity:.24;filter:blur(1px)}
.hero-backdrop:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#ffffff40,white 27%,#fffffff5 50%,white 73%,#ffffff40);opacity:.83}
.hero .slides,.hero-label,.hero-actions,.carousel-controls,.hero-note{position:relative;z-index:1}
.hero .hero-note{padding:18px 0 10px;margin:0}
.hero-decoration{position:absolute;width:clamp(150px,16vw,250px);height:auto;object-fit:contain;pointer-events:none;z-index:0;filter:drop-shadow(0 16px 24px #235b8c08)}
.hero-decoration-cards{left:1.5%;top:40%;transform:rotate(-9deg)}
.hero-decoration-tea{right:1%;top:39%;transform:rotate(6deg)}
.button.quiet{background:var(--surface-2);border-color:#eaeaec;color:var(--text-2)}
.button.quiet:hover{background:var(--surface-2);border-color:#dedee2;color:var(--text-2)}
@media(min-width:1700px){.hero-decoration-cards{left:5%}.hero-decoration-tea{right:5%}}
@media(max-width:1100px) and (min-width:761px){.hero-decoration{width:145px;top:54%}.hero-decoration-cards{left:-12px}.hero-decoration-tea{right:-12px}.hero-backdrop img{opacity:.18}}
@media(max-width:760px){.hero{min-height:600px;padding-top:38px;padding-bottom:18px}.hero-decoration{width:100px;top:auto;bottom:22px}.hero-decoration-cards{left:10px;transform:rotate(-10deg)}.hero-decoration-tea{right:10px;transform:rotate(7deg)}.hero-backdrop img{opacity:.18;object-position:50% 75%}.hero-backdrop:after{background:linear-gradient(180deg,#ffffffb0,#ffffffed 20%,#ffffffed 72%,#ffffff50);opacity:1}.hero .hero-note{padding:16px 0 90px}.hero .hero-actions{flex-direction:row;gap:12px;min-height:48px;justify-content:center}.hero-actions .button{font-size:.875rem;padding:12px 20px}.hero .carousel-controls{margin-top:24px}}
@media(max-width:480px){.hero{padding-top:32px;min-height:620px}.hero .hero-actions{flex-direction:column;gap:10px;min-height:106px;align-items:center}.hero-actions .button{min-width:190px}.hero .carousel-controls{margin-top:16px}.hero-decoration{width:85px;bottom:18px}.hero .hero-note{padding-bottom:75px;font-size:.75rem}.hero .hero-slide p{min-height:96px}.hero-backdrop img{object-position:50% 75%}}

/* Course finder and live lesson demo. Semantic colour remains in small cues. */
:root{--success:#34c759;--in-progress:#0071e3;--not-started:#8e8e93;--streak:#ff9f0a;--error-dot:#ff3b30;--hsk:#ffcc00}
.finder-dialog{width:min(720px,calc(100% - 32px));max-height:calc(100dvh - 40px);padding:0;border:1px solid #e9e9ee;border-radius:32px;background:var(--surface);color:var(--ink);box-shadow:0 30px 100px #18294126;overscroll-behavior:contain;overflow-y:auto}
.finder-dialog::backdrop{background:#1d1d1f50;backdrop-filter:blur(8px)}
.finder-shell{padding:24px 38px 20px}.finder-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.finder-brand{font-size:.875rem;font-weight:650}.finder-brand span{font-weight:400;color:var(--text-2)}.finder-close{border:0;width:44px;height:44px;border-radius:50%;background:var(--paper);color:var(--text-2);font-size:1.75rem;line-height:1}.finder-progress{display:flex;gap:8px;margin:18px 0 30px}.finder-progress span{height:4px;background:var(--surface-2);flex:1;border-radius:5px}.finder-progress .is-done{background:var(--blue)}
.finder-step h2{font-size:clamp(1.75rem,calc(3.2vw*var(--ts,1)),2.375rem);margin:12px 0 24px;line-height:1.1;letter-spacing:-.04em}.finder-step h2:focus{outline:0}.finder-step>p{font-size:1rem;color:var(--text-2);line-height:1.6}.finder-step[data-finder-step=intro]{text-align:center}.finder-intro-art{width:200px;height:130px;object-fit:contain;display:block;margin:-15px auto 12px}.finder-step .eyebrow{color:var(--text-2)}.finder-step .button{font-size:1rem;min-height:50px}.finder-step .finder-micro,.finder-micro{font-size:.8125rem;line-height:1.6;color:var(--text-2);margin:15px 0}.finder-footer{display:flex;align-items:center;justify-content:space-between;min-height:54px;margin-top:16px;gap:16px;font-size:.8125rem;color:var(--text-2)}.finder-footer .text-button{min-height:44px;padding:0 10px}.finder-footer>span{margin-left:auto}.finder-credit{display:block;border-top:1px solid var(--line);padding-top:12px;font-size:.75rem;color:var(--text-2)}.finder-credit a{text-decoration:underline;text-underline-offset:3px}.finder-goals{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.finder-choice{display:flex;flex-direction:column;align-items:flex-start;text-align:left;gap:3px;background:var(--paper);color:var(--ink);padding:19px 22px;border:2px solid transparent;border-radius:20px;min-width:0;transition:border-color .15s,box-shadow .15s}.finder-choice:hover,.finder-choice[aria-pressed=true]{border-color:var(--blue);box-shadow:0 5px 20px #0071e30a}.finder-choice strong{font-size:1.125rem;font-weight:600;letter-spacing:-.02em}.finder-choice>span{font-size:.875rem;color:var(--text-2)}.finder-choice img{width:100%;height:105px;object-fit:contain;margin:-6px 0 5px}.finder-options{display:grid;gap:12px}.finder-options .finder-choice{min-height:83px;justify-content:center}.finder-audio{display:inline-flex;justify-content:center;align-items:center;gap:5px;flex-wrap:wrap;min-height:44px;border:0;background:var(--paper);border-radius:14px;color:var(--text-2);padding:10px 14px;font-size:.875rem;margin-top:18px}.finder-audio:hover,.finder-audio.is-playing{color:var(--link-strong);background:var(--surface-2)}.finder-result-top{display:flex;align-items:center;gap:15px;justify-content:space-between}.finder-result-top>div{min-width:0}.finder-result-top h2{margin-bottom:15px}.finder-result-top img{width:125px;height:100px;object-fit:contain;flex-shrink:0}.finder-result .badge{color:var(--text-2);background:var(--paper)}.finder-result .hsk-badge{background:var(--hsk);color:var(--ink)}.finder-result .feature-list{margin:18px 0}.finder-result .feature-list li{font-size:.9375rem;margin:8px 0}.finder-result .feature-list li:before{color:var(--text-2)}.finder-result .finder-format{padding:12px 15px;border-radius:14px;background:var(--paper);font-size:.875rem}.finder-result .finder-explanation{border-left:3px solid var(--blue);padding-left:14px;font-size:.875rem}.finder-result form{border-top:1px solid var(--line);padding-top:18px;margin-top:20px}.finder-result form>.button{width:100%;margin-top:5px}.finder-result input:not([type=checkbox]){margin-bottom:12px}.finder-consent{display:flex;align-items:flex-start;gap:10px;font-size:.8125rem;font-weight:400;color:var(--text-2);line-height:1.55}.finder-consent input{width:20px;height:20px;margin:2px 0;flex-shrink:0}.finder-consent a{text-decoration:underline;text-underline-offset:3px}.finder-error{font-size:.875rem!important;color:var(--text-2)!important;padding:12px 16px;border:1px solid #d9d9de;border-radius:12px;margin:15px 0}.finder-error:before{content:'';display:inline-block;vertical-align:middle;width:6px;height:6px;border-radius:50%;background:var(--error-dot);margin-right:9px}.finder-saved{border:1px solid #e5e9e5;border-radius:18px;padding:20px;box-shadow:0 0 25px #34c75909;margin:20px 0}.finder-saved>p{margin:8px 0;color:var(--text-2)}.finder-success-dot{display:inline-grid;place-items:center;background:var(--success);color:#12301b;width:26px;height:26px;border-radius:50%;font-weight:700}.finder-preview{display:block;color:var(--link-strong);min-height:44px;margin-top:18px;font-size:.875rem}.finder-honeypot{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.demo-section{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);align-items:center;gap:clamp(30px,5vw,80px);padding:70px 0 30px}.demo-copy p{max-width:480px;color:var(--text-2)}.demo-copy .button{margin:5px 0}.demo-tablet{background:var(--surface);border:10px solid #242429;border-radius:36px;box-shadow:0 20px 45px #1d1d1f12,inset 0 0 0 1px #e6e6ea;padding:25px 28px 22px;min-width:0}.demo-tablet-top{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:.75rem;color:var(--text-2)}.demo-status{display:inline-flex;gap:6px;align-items:center;white-space:nowrap}.demo-status:before{content:'';display:block;width:6px;height:6px;border-radius:50%;background:var(--in-progress)}.demo-progress{height:4px;border-radius:5px;background:var(--surface-2);overflow:hidden;margin:15px 0}.demo-progress span{display:block;width:35%;height:100%;background:var(--in-progress)}.demo-tablet.is-complete{box-shadow:0 20px 45px #1d1d1f10,0 0 22px #34c7590a}.demo-tablet.is-complete .demo-progress span{width:100%;background:var(--success)}.demo-tablet.is-complete .demo-status:before{background:var(--success)}.demo-word{text-align:center;margin:20px 0}.demo-word>span{display:block;font:4.25rem/1.2 'SimSun','Songti SC','Noto Serif SC',serif;color:var(--ink)}.demo-word>strong{display:block;font-weight:400;font-size:1.5rem;margin-top:8px}.demo-word .finder-audio{margin-top:12px}.demo-quiz{border:0;margin:0;padding:0}.demo-quiz legend{font-size:.9375rem;font-weight:600;margin-bottom:10px}.demo-quiz>div{display:flex;gap:8px;flex-wrap:wrap}.demo-quiz button{border:1px solid #dedee4;border-radius:13px;background:var(--paper);color:var(--text-2);min-height:44px;padding:10px 14px;font-size:.8125rem;flex:1}.demo-quiz button:hover{border-color:var(--blue)}.demo-quiz button.is-correct{border-color:#298744;background:var(--surface);opacity:1}.demo-quiz button.is-correct:before{content:'✓ ';color:#175c2a}.demo-feedback{font-size:.8125rem;line-height:1.55;margin:15px 0 0;color:var(--text-2)}.demo-tablet>[data-demo-reset]{font-size:.8125rem;min-height:40px}
@media(max-width:900px){.demo-section{grid-template-columns:1fr}.demo-copy{text-align:center}.demo-copy p{margin-left:auto;margin-right:auto}.demo-tablet{width:100%;max-width:650px;justify-self:center}}
@media(max-width:480px){.finder-dialog{width:calc(100% - 20px);max-height:calc(100dvh - 20px);border-radius:24px}.finder-shell{padding:16px 20px}.finder-brand{font-size:.75rem}.finder-brand span{font-size:.75rem}.finder-progress{margin:14px 0 22px}.finder-step h2{font-size:1.75rem}.finder-intro-art{width:170px;height:110px}.finder-goals{gap:10px}.finder-choice{padding:12px;border-radius:16px}.finder-choice strong{font-size:1rem}.finder-choice>span{font-size:.75rem}.finder-choice img{height:70px;margin:0 0 5px}.finder-options .finder-choice{padding:14px;min-height:78px}.finder-options .finder-choice>span{font-size:.875rem}.finder-result-top{gap:5px}.finder-result-top img{width:75px;height:75px}.finder-result-top h2{font-size:1.6875rem;overflow-wrap:anywhere}.finder-result .badge{font-size:.75rem}.finder-result .feature-list li{font-size:.875rem}.finder-result form>.button{font-size:.875rem;padding:13px 16px}.finder-audio{font-size:.8125rem}.finder-footer{margin-top:10px}.finder-credit{font-size:.75rem}.demo-section{padding-top:42px}.demo-tablet{border-width:7px;border-radius:27px;padding:20px 16px}.demo-tablet-top{font-size:.75rem;gap:7px}.demo-word>span{font-size:3.625rem}.demo-quiz>div{flex-direction:column}.demo-quiz button{font-size:.875rem}.demo-copy h2{font-size:2rem}.finder-micro{font-size:.75rem}}
.finder-header{position:sticky;top:0;background:var(--surface);z-index:3;padding:4px 0}
.finder-dialog{max-width:calc(100% - 32px)}
@media(max-width:480px){.finder-dialog{max-width:calc(100% - 20px)}}
/* Lead with the live course finder; the carousel closes the homepage. */
.finder-hero{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(32px,5vw,90px);align-items:center;padding:clamp(35px,4vw,65px) 0}
.finder-lead{max-width:580px}.finder-lead h1{font-size:clamp(2.625rem,calc(5.2vw*var(--ts,1)),4.875rem);line-height:1.04;margin:22px 0;letter-spacing:-.055em}.finder-lead h1 span{color:var(--blue)}.finder-lead>p{font-size:clamp(1.0625rem,calc(1.5vw*var(--ts,1)),1.3125rem);color:var(--text-2);max-width:470px}.finder-lead-note{font-size:.875rem;color:var(--text-2);margin:26px 0 12px}
.finder-inline{background:var(--surface);border:1px solid var(--line);border-radius:30px;box-shadow:0 10px 45px #1d1d1f05;min-width:0;scroll-margin-top:24px}.finder-inline .finder-header{position:static}.finder-inline .finder-shell{padding:22px 28px 18px}.finder-inline .finder-progress{margin:18px 0 24px}.finder-inline .finder-goals img{height:90px}.finder-inline .finder-step h2{font-size:clamp(1.6875rem,calc(2.5vw*var(--ts,1)),2.25rem)}.finder-inline .finder-credit{font-size:.75rem}.finder-inline .finder-footer{margin-top:10px}.finder-inline .finder-result-top img{width:100px}.finder-inline+.hero{margin-top:40px}
@media(min-width:1700px){.finder-hero{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.finder-inline .finder-goals img{height:120px}}
@media(max-width:900px){.finder-hero{grid-template-columns:1fr;gap:28px}.finder-lead{max-width:680px;text-align:center;margin:auto}.finder-lead>p{max-width:560px;margin-left:auto;margin-right:auto}.finder-lead h1{font-size:clamp(2.5rem,calc(7vw*var(--ts,1)),3.75rem);margin:15px 0}.finder-lead-note{margin:15px 0 5px}.finder-inline{width:100%;max-width:720px;justify-self:center}.finder-lead .subtle-link{font-size:.875rem}}
@media(max-width:480px){.finder-hero{padding:30px 0;gap:22px}.finder-lead h1{font-size:2.6875rem}.finder-lead .eyebrow{font-size:.75rem;letter-spacing:1.2px}.finder-lead>p{font-size:1rem;margin-bottom:12px}.finder-lead-note{font-size:.75rem}.finder-inline{border-radius:24px}.finder-inline .finder-shell{padding:18px 15px 14px}.finder-inline .finder-step h2{font-size:1.6875rem}.finder-inline .finder-choice{padding:10px}.finder-inline .finder-choice strong{font-size:.9375rem}.finder-inline .finder-goals img{height:75px}.finder-inline .finder-choice>span{font-size:.75rem}.finder-inline .finder-result-top img{width:65px}.finder-inline .finder-result-top h2{font-size:1.5625rem}}
@media(max-width:350px){.finder-inline .finder-choice strong{font-size:.8125rem}.finder-inline .finder-choice>span{font-size:.75rem}.finder-inline .finder-step h2{font-size:1.5rem}.finder-inline .finder-shell{padding-left:12px;padding-right:12px}}

.sort-tile{cursor:grab;transition:box-shadow .15s,border-color .15s}.sort-tile:active{cursor:grabbing}.sort-tile:focus-visible{outline:2px solid var(--blue);outline-offset:3px}.sort-tile.sort-dragging{opacity:.45;border:2px dashed var(--blue);box-shadow:0 0 0 4px #edf5ff}.sort-active{background:var(--surface-tint);border-radius:14px}.sort-saving{pointer-events:none;opacity:.75}.editor-lesson{border:1px solid var(--line)}.editor-lesson .block-row{padding:14px;margin:10px 0;border:1px solid var(--line);border-radius:12px;background:var(--surface)}.block-row>a{display:block;width:100%}.sort-tile a{cursor:pointer}

.users-toolbar{margin-bottom:22px}.users-search{display:flex;align-items:start;gap:12px}.users-search input{flex:1;min-width:0}.users-search .button{margin-top:6px}.users-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 22px}.users-tabs a{padding:9px 15px;border:1px solid var(--line);border-radius:24px;font-size:.875rem;color:var(--blue)}.users-tabs a.selected{background:var(--blue);color:white;border-color:var(--blue)}.users-tabs span{margin-left:5px;opacity:.75}.users-export{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:.875rem}.users-table-wrap{border:1px solid var(--line);border-radius:16px}.users-table-wrap table{min-width:1050px}.users-table-wrap th{background:var(--surface-tint);font-size:.75rem}.users-table-wrap td{vertical-align:top}.users-table-wrap .badge{font-size:.75rem;margin-top:7px}.users-badge-muted{background:var(--surface-2);color:var(--text-2)}.users-badge-blocked{background:var(--danger-bg);color:var(--danger-text)}.users-role-form{min-width:160px}.users-role-form select{padding:8px 10px;margin:0 0 7px;font-size:.8125rem}.users-save{border:0;background:none;color:var(--blue);padding:4px 0;cursor:pointer;font-size:.75rem}.users-block{color:var(--danger-text)}.users-actions{display:grid;gap:12px;white-space:nowrap}.users-actions a{font-size:.8125rem}

.development-banner{background:#b91c1c;color:#fff;text-align:center;padding:16px 24px;line-height:1.5}.development-banner strong{display:block;font-size:1.0625rem}.development-banner p{margin:5px auto 0;max-width:1100px;font-size:.875rem}.development-banner p:last-child{font-size:.8125rem;color:#ffe4e6}@media(max-width:600px){.development-banner{padding:13px 16px}.development-banner strong{font-size:.9375rem}.development-banner p{font-size:.8125rem}}

.editor-save-bar{position:sticky;bottom:0;z-index:5;display:flex;align-items:center;flex-wrap:wrap;gap:14px;background:var(--surface);padding:14px 0;border-top:1px solid var(--line);box-shadow:0 -6px 16px #00000006}.editor-save-bar [role=status]{font-size:.8125rem;color:var(--muted)}

.analytics-page{padding:36px 0 70px}.analytics-heading h1{font-size:clamp(2rem,calc(5vw*var(--ts,1)),3.25rem);margin:8px 0}.analytics-filters{display:flex;align-items:end;gap:14px;flex-wrap:wrap;background:var(--paper);padding:22px;border-radius:18px;margin:26px 0}.analytics-filters label{flex:1 1 150px;min-width:0;font-size:.875rem}.analytics-filters input,.analytics-filters select{width:100%;margin:8px 0 0}.analytics-filters small{flex-basis:100%}.analytics-tabs{display:flex;flex-wrap:wrap;width:auto;gap:8px;margin:24px 0;padding:0}.analytics-tabs a{border:1px solid var(--line);padding:10px 16px;border-radius:12px}.analytics-tabs a[aria-current]{background:var(--ink);color:var(--paper)}.analytics-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}.analytics-cards article{border:1px solid var(--line);border-radius:18px;padding:22px}.analytics-cards h2{font-size:.9375rem;letter-spacing:0;margin:0 0 14px}.analytics-cards strong{font-size:2rem;overflow-wrap:anywhere}.analytics-cards p{font-size:.8125rem}.analytics-chart,.analytics-attention,.analytics-report{margin-top:30px;border:1px solid var(--line);padding:24px;border-radius:18px;min-width:0}.analytics-chart h2,.analytics-report h2{font-size:1.4375rem}.analytics-bars{display:flex;gap:5px;align-items:end;overflow-x:auto;padding:15px 0}.analytics-bar{flex:1 0 28px;display:flex;flex-direction:column;align-items:center;gap:7px;font-size:.75rem}.analytics-bar meter{writing-mode:vertical-lr;direction:rtl;height:115px;width:16px;accent-color:var(--blue)}.analytics-bar small{font-size:.75rem;white-space:nowrap}.analytics-attention summary{font-weight:600;cursor:pointer}.analytics-attention li{padding:8px 0;font-size:.875rem;overflow-wrap:anywhere}.analytics-report .table-wrap{margin-bottom:15px}.analytics-report td{max-width:320px;overflow-wrap:anywhere}.analytics-pagination{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.875rem}.analytics-report .section-top{gap:12px}.analytics-page a:focus-visible,.analytics-bar:focus-visible{outline:3px solid var(--blue);outline-offset:3px}@media(max-width:760px){.analytics-tabs{display:flex!important}.analytics-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.analytics-cards article{padding:15px}.analytics-cards strong{font-size:1.625rem}.analytics-report,.analytics-chart,.analytics-attention{padding:16px}.analytics-filters{padding:16px}.analytics-report th,.analytics-report td{min-width:110px}}
.analytics-simple-filter{display:flex;align-items:end;gap:14px;max-width:520px;margin:26px 0}.analytics-simple-filter label{flex:1;font-size:.875rem}.analytics-simple-filter select{width:100%;margin-top:8px}.analytics-cards-simple{margin-bottom:30px}.simple-progress{border:1px solid var(--line);border-radius:18px;padding:24px}.simple-progress>article{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:18px 0;border-top:1px solid var(--line)}.simple-progress>article:first-of-type{border-top:0}.simple-progress h3{font-size:1.125rem;margin:0 0 6px}.simple-progress p{margin:0}.simple-progress-value{width:min(260px,42%);text-align:right}.simple-progress-value strong{font-size:1.375rem}.simple-progress-value .progress-track{margin:10px 0}.simple-progress-value a{font-size:.875rem}.analytics-simple-students{margin-top:30px}@media(max-width:760px){.analytics-simple-filter{align-items:stretch;flex-direction:column}.simple-progress{padding:16px}.simple-progress>article{align-items:stretch;flex-direction:column;gap:12px}.simple-progress-value{width:100%;text-align:left}.analytics-simple-students{padding:16px}}

.login-methods{margin-top:28px}.login-methods p{margin:0 0 10px}.login-methods .button{margin:0 8px 10px 0;padding-inline:1.1rem}
.word-card p.hanzi{font:4.5rem/1.3 'KaiTi','STKaiti','Kaiti SC','SimSun','Songti SC','Noto Serif SC',serif;color:var(--ink);margin:.2em 0;text-align:center}
.word-card p.pinyin{font-size:1.6rem;color:var(--link-strong);margin:.2em 0}.word-card summary{cursor:pointer;font-weight:600;padding:.6rem 0}
.word-card .translation{font-size:1.35rem;color:var(--ink);text-align:center}.grade-buttons{display:flex;flex-wrap:wrap;gap:8px;margin-top:.5rem}
.map-tile{display:block;padding:16px}.lesson-words{margin:16px 0}

.catalog-filters{margin:18px 0 8px}.catalog-filters .search{display:flex;gap:8px;margin:0 0 12px}.catalog-filters .search input{flex:1;margin:0}
.filter-row{display:flex;flex-wrap:wrap;gap:12px;align-items:end}.filter-row label{display:grid;gap:4px;font-size:.875rem}.filter-row select{margin:0;min-width:9rem}
.recommended{margin:20px 0}.similar{margin:40px 0}

label.checkbox{display:flex;gap:.5rem;align-items:flex-start;font-weight:400;font-size:.875rem;margin:.6rem 0}label.checkbox input{margin-top:.25rem;flex:0 0 auto}
.empty a,.notice a,.muted a,.lead a{text-decoration:underline}
/* Choosing a plan remains available while the payment provider is disconnected. */
.pricing-grid .pricing-card[data-plan-card]{border:2px solid var(--line)}
.pricing-grid .pricing-card.is-selected{border-color:var(--blue)}
.plan-choice{display:flex;flex-direction:column;align-items:flex-start;gap:8px;max-width:100%;padding:12px 14px;margin:0 0 16px;border:1px solid var(--control-line);border-radius:var(--radius);background:var(--surface);color:var(--ink);text-align:left;cursor:pointer;line-height:1.3}
.plan-choice:hover,.plan-choice[aria-pressed=true]{border-color:var(--blue);background:var(--surface-tint)}
.plan-choice:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.plan-choice>span{max-width:100%;overflow-wrap:anywhere}
.plan-choice-label{font:700 .875rem/1.5 var(--font-ui);color:var(--blue)}
.plan-selection-status{max-width:1040px;margin:0 auto 24px;color:var(--text-2);font-size:.875rem}
/* The existing, keyboard-accessible selection button covers the complete tariff card. */
.pricing-grid .pricing-card[data-plan-card]{position:relative;isolation:isolate;cursor:pointer}
.pricing-grid .pricing-card.is-selected{background:var(--surface-tint);border-color:var(--blue)}
.pricing-card .plan-choice{position:static;border:0;border-radius:0;padding:0;margin:0 0 24px;background:transparent;color:var(--ink)}
.pricing-card .plan-choice:hover,.pricing-card .plan-choice[aria-pressed=true]{background:transparent;border-color:transparent}
.pricing-card .plan-choice:after{content:'';position:absolute;inset:0;z-index:1;border-radius:var(--radius)}
.pricing-card .plan-choice:focus-visible{outline:none}
.pricing-card .plan-choice:focus-visible:after{outline:3px solid var(--blue);outline-offset:4px}
.pricing-card:has(.plan-choice:hover){border-color:var(--blue)}
.pricing-card :is(form,a,input,select,textarea,label,button:not(.plan-choice)){position:relative;z-index:2;cursor:auto}
.pricing-card :is(a,button:not(.plan-choice)){cursor:pointer}
.pricing-card button:disabled{cursor:not-allowed}
.pricing-grid .pricing-card[data-plan-card]:not(.is-selected){background:var(--surface)}

.chat-message{padding:.7rem 0;border-bottom:1px solid var(--line)}.chat-message header{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}.chat-message.is-hidden{opacity:.55}.chat-text{margin:.3rem 0;overflow-wrap:anywhere}.chat-quote{margin:.3rem 0;padding:.3rem .6rem}.chat-message footer{display:flex;gap:1rem;font-size:.875rem}

.video-embed{position:relative;aspect-ratio:16/9;max-width:100%;background:#000;border-radius:var(--radius,12px);overflow:hidden}.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

.certificate{max-width:46rem;margin:1.5rem auto;padding:2.5rem 2rem;text-align:center;background:#fff;color:#1a1a1a;border:6px double var(--primary,#b3261e);border-radius:var(--radius,12px)}
.certificate h1{font-size:2.4rem;margin:.2rem 0}.certificate-name{font-size:1.9rem;font-weight:700;margin:.6rem 0}.certificate-course{font-size:1.4rem;font-weight:600}
.certificate-foot{display:flex;justify-content:space-between;align-items:flex-end;gap:1rem;margin-top:2rem;text-align:left;flex-wrap:wrap}.certificate-qr svg{width:7.5rem;height:7.5rem;display:block}
@media print{.no-print,header,nav,footer{display:none!important}body{background:#fff!important}.certificate{border-color:#000;margin:0 auto}}

.share-row{display:grid;grid-template-columns:minmax(7rem,12rem) 1fr minmax(6rem,9rem);align-items:center;gap:.75rem;margin:.4rem 0}
.share-row meter{width:100%;height:1.1rem}.share-value{text-align:right;white-space:nowrap}
@media(max-width:36rem){.share-row{grid-template-columns:1fr auto}.share-row meter{grid-column:1/-1;order:3}}