:root{--ink:#1d344b;--muted:#748499;--blue:#2659d9;--green:#168b7b;--line:#e0e8ef;font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#f5f8fb}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer;background:white;border:1px solid var(--line);border-radius:10px;padding:9px 18px;color:var(--ink)}button:hover{border-color:#9db7db}button:disabled{opacity:.5;cursor:wait}button.primary,.selected{color:white;background:var(--blue);border-color:var(--blue)}input,select,textarea{border:1px solid var(--line);border-radius:10px;padding:10px;background:white;max-width:100%;color:var(--ink)}header{display:flex;align-items:center;gap:28px;justify-content:space-between;background:white;padding:20px max(24px,calc((100% - 1200px)/2));border-bottom:1px solid var(--line)}.brand{font-size:23px;font-weight:800;white-space:nowrap}.brand span{display:block;font-size:11px;font-weight:400;letter-spacing:4px;color:var(--muted)}nav{display:flex;gap:24px;flex-wrap:wrap}nav a{font-weight:600;white-space:nowrap}.active{color:var(--blue)}main{max-width:1200px;margin:28px auto;padding:0 20px}.hero{position:relative;display:flex;justify-content:space-between;align-items:center;padding:36px 42px;border:1px solid #cee7e6;border-radius:22px;background:linear-gradient(120deg,#e4f0ff,#e7f7ef);overflow:hidden}.hero h1{font-size:32px;margin:8px 0}.hero small{color:var(--green);letter-spacing:3px;font-weight:600}.hero p{color:#536f83;margin:8px 0}.hero-mark{font-size:70px;border:1px solid #bdddd6;transform:rotate(8deg);border-radius:24px;padding:0 28px;color:#198773;background:#ffffff77}.hero-mark span{display:block;font-size:12px;letter-spacing:4px;text-align:center;margin-bottom:12px}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0}.toolbar input{margin-left:auto;min-width:190px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.card{border:1px solid var(--line);border-radius:16px;background:white;overflow:hidden}.card .cover{width:100%;height:180px;object-fit:cover;background:linear-gradient(140deg,#e4efff,#dbf0ed);display:flex;align-items:center;justify-content:center;font-size:25px;color:#4d788c}.card-body{padding:20px}.card h3{margin:4px 0 10px;font-size:20px}.card p{color:var(--muted);font-size:14px}.card .bottom{display:flex;justify-content:space-between;align-items:center;margin-top:20px}.price{color:#c77228;font-weight:700}.badge{background:#eef5fc;padding:4px 9px;border-radius:7px;font-size:12px;color:#53789b}.empty{text-align:center;padding:70px 20px;border-radius:16px;background:white;color:var(--muted)}.help{margin-top:50px;border-top:1px solid var(--line);padding:20px 0}.help h2{font-size:21px}.help-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;color:var(--muted);font-size:14px}.help b{color:var(--ink)}footer{text-align:center;padding:25px;color:var(--muted);font-size:13px}#notice{color:#a25027;margin:10px 0;white-space:pre-wrap}dialog{border:0;border-radius:20px;width:min(1120px,94vw);max-height:90vh;padding:32px;box-shadow:0 24px 100px #152a4f40;overflow:auto;overflow-wrap:anywhere}dialog::backdrop{background:#14283d77;backdrop-filter:blur(4px)}.close{position:sticky;top:0;float:right;border-radius:50%;z-index:4;background:white;font-size:24px;line-height:1;padding:7px 12px}dialog h2{margin:6px 50px 15px 0}.summary{color:var(--muted);white-space:pre-wrap}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.catalog{padding:0;list-style:none}.catalog li{padding:12px 0;border-bottom:1px solid var(--line)}.qr{display:block;width:240px;height:240px;object-fit:contain;margin:20px auto}.center{text-align:center}.reader{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:20px}.viewer{min-width:0}.video-wrap{position:relative;background:#142234;overflow:hidden}.video-wrap video{width:100%;max-height:58vh;display:block}.watermark{position:absolute;left:20px;top:20px;color:#fff9;text-shadow:0 1px 2px black;pointer-events:none;z-index:3;font-size:13px}.doc{width:100%;border:1px solid var(--line)}.rich{overflow-wrap:anywhere}.rich img{max-width:100%;height:auto}.lesson-list{display:flex;flex-direction:column;gap:8px}.lesson-list button{text-align:left;font-size:14px}.note{width:100%;min-height:110px}.order{background:white;border:1px solid var(--line);border-radius:14px;padding:20px;margin:14px 0}.order small{color:var(--muted)}.terms{background:#f4f7fa;padding:16px;border-radius:10px;font-size:14px}.error{color:#ac472c;padding:12px;background:#fff3eb;border-radius:10px}.progress{color:var(--green);font-size:13px}@media(max-width:850px){header{padding:15px 20px;flex-wrap:wrap;gap:12px}nav{order:3;width:100%;font-size:14px;gap:18px}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{padding:25px}.hero h1{font-size:25px}.hero-mark{display:none}.reader{grid-template-columns:1fr}.lesson-list{max-height:180px;overflow:auto}.help-grid{grid-template-columns:1fr;gap:5px}}@media(max-width:520px){main{padding:0 14px;margin:18px auto}.grid{grid-template-columns:1fr}.toolbar input{width:100%;margin:0}.toolbar button{padding:8px 12px}.hero h1{font-size:23px}dialog{padding:20px}.card .cover{height:160px}}

.video-wrap:fullscreen{display:flex;align-items:center;justify-content:center}.video-wrap:fullscreen video{max-height:100vh;height:100%;object-fit:contain}

/* Shared website navigation; keep classroom content styles scoped below it. */
header.cj-header{display:block;padding:0;gap:normal;font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.65;color:#142439}
.cj-header nav.cj-wrap{order:initial;flex-wrap:nowrap;font-size:15px}
.cj-header .cj-nav{justify-content:center}
.cj-header a{text-decoration:none;touch-action:manipulation}
.cj-header a:hover{text-decoration:underline}
.cj-header #login{display:inline-block;border:1px solid #e0e7eb;border-radius:10px;padding:9px 17px;background:white;color:#142439;white-space:nowrap;font:inherit;touch-action:manipulation}
.cj-header #login:hover{border-color:#91a6bd;background:#f3f7fd}
.cj-header :focus-visible{outline:3px solid #90baff;outline-offset:3px}
/* Match the main website's shared header and brand geometry. */
.cj-header{height:90px;position:sticky;top:0;z-index:20;background:#f7f8faf0;border-bottom:1px solid #e7ebef;backdrop-filter:blur(18px)}
.cj-header nav.cj-wrap{width:min(1200px,calc(100% - 96px));height:100%;min-height:0;margin-inline:auto;display:flex;justify-content:space-between;align-items:center;gap:30px;padding:0}
.cj-header .cj-brand{display:flex;align-items:center;gap:10px;flex:none;white-space:nowrap;font-size:20px;font-weight:700;letter-spacing:.04em;color:#18283e;line-height:normal}
.cj-header .cj-brand img{display:block;flex:none;width:32px;height:32px;max-width:100%;object-fit:cover;object-position:left}
.cj-header .cj-brand small{display:block;font-size:10px;letter-spacing:.14em;color:#697586;font-weight:400;margin-top:4px;line-height:normal}
.cj-header .cj-nav{display:flex;align-self:stretch;flex:none;gap:44px}
.cj-header .cj-nav a{display:flex;align-items:center;position:relative;font-size:15px;color:#697586;font-weight:500;padding:0;border:0}
.cj-header .cj-nav a[aria-current=page]{color:#18283e;font-weight:700}
.cj-header .cj-nav a[aria-current=page]:after{content:"";position:absolute;bottom:0;height:3px;left:0;right:0;background:#315ced}
@media(max-width:760px){.cj-header{height:112px}.cj-header nav.cj-wrap{width:calc(100% - 40px);flex-wrap:wrap;gap:0;align-content:center;position:relative}.cj-header .cj-brand{font-size:18px}.cj-header .cj-brand img{width:28px;height:28px}.cj-header .cj-brand small{font-size:9px}.cj-header .cj-nav{order:3;width:100%;height:44px;margin-top:12px;justify-content:space-between;gap:0}.cj-header .cj-nav a{font-size:14px;padding:0 6px}.cj-header #login{font-size:12px;padding:8px 10px}}


/* Course overview: cover, purchase summary and readable content sections. */
.course-detail{color:var(--ink)}.detail-breadcrumb{font-size:13px;color:var(--muted);margin:6px 50px 24px 0}.detail-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:30px;align-items:start}.detail-cover{border-radius:14px;overflow:hidden;background:#eaf2fc}.detail-cover img{display:block;width:100%;aspect-ratio:16/10;object-fit:contain}.detail-placeholder{min-height:230px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:32px;font-weight:700;background:linear-gradient(135deg,#dfecff,#def2eb)}.detail-placeholder span{font-size:14px;font-weight:400;margin-top:12px}.detail-info{min-width:0}.detail-tags{display:flex;gap:8px;flex-wrap:wrap}.detail-info h2{font-size:25px;line-height:1.45;margin:14px 0}.detail-teacher{font-size:14px;color:#536f83;margin:10px 0}.detail-summary{font-size:14px;color:var(--muted);margin:12px 0;white-space:pre-wrap}.detail-price{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:#f4f7fc;border-radius:12px;padding:16px 18px;margin-top:18px}.detail-price>span{font-size:13px;color:var(--muted)}.detail-price strong{font-size:28px;color:#d66d26}.detail-price small{width:100%;color:var(--muted);font-size:12px}.detail-info .actions{margin:18px 0 8px}.detail-info .actions button{min-width:140px;padding:12px 24px;font-weight:600}.detail-hint{font-size:12px;color:var(--muted);margin:0}.detail-tabs{display:flex;gap:28px;border-bottom:1px solid var(--line);margin-top:30px}.detail-tabs button{border:0;border-radius:0;background:transparent;padding:16px 0;color:var(--muted);font-weight:600;border-bottom:3px solid transparent}.detail-tabs button[aria-selected=true]{color:var(--blue);border-bottom-color:var(--blue)}.detail-panel{padding:20px 4px 8px}.detail-panel h3{margin:0 0 20px;font-size:20px}.detail-panel h3 small{font-size:13px;color:var(--muted);font-weight:400;margin-left:10px}.detail-rich{font-size:15px;line-height:1.9;overflow-wrap:anywhere}.detail-rich p{margin:0 0 18px;white-space:pre-wrap}.detail-rich img{display:block;max-width:100%;height:auto;border-radius:10px;margin:20px auto}.detail-catalog{list-style:none;padding:0;margin:0}.detail-catalog li{display:flex;gap:16px;align-items:center;padding:18px 14px;border-bottom:1px solid var(--line)}.detail-catalog li:nth-child(odd){background:#f8fafc}.detail-catalog li>span:nth-child(2){flex:1;min-width:0}.lesson-number{color:#8295ac;font-size:14px}.detail-catalog .badge{flex-shrink:0}.detail-terms{display:grid;grid-template-columns:110px 1fr;gap:18px;font-size:14px}.detail-terms dt{font-weight:600}.detail-terms dd{margin:0;color:var(--muted)}
@media(max-width:700px){.detail-hero{grid-template-columns:1fr;gap:18px}.detail-info h2{font-size:22px}.detail-cover img{aspect-ratio:16/9}.detail-tabs{gap:20px}.detail-tabs button{font-size:14px}.detail-price strong{font-size:25px}.detail-terms{grid-template-columns:1fr;gap:8px}.detail-terms dd{margin-bottom:12px}.detail-catalog li{padding:14px 4px;gap:10px;font-size:14px}}

/* Course details are a normal full-page view, sharing the website header. */
#coursePage{max-width:1200px;margin:0 auto;padding:26px 24px 60px;min-height:75vh}#coursePage[hidden],main[hidden]{display:none}#coursePage .detail-breadcrumb{margin:0 0 26px;font-size:14px}#coursePage .detail-back{color:var(--blue)}#coursePage .detail-back:hover{text-decoration:underline}#coursePage .detail-hero{background:white;padding:28px;border-radius:16px;border:1px solid var(--line)}#coursePage .detail-tabs{margin-top:28px;padding:0 26px;background:white;border-radius:14px 14px 0 0}#coursePage .detail-panel{background:white;padding:28px;border-radius:0 0 14px 14px}#coursePage .detail-panel[hidden]{display:none}#coursePage .detail-info h2{margin-right:0}
@media(max-width:700px){#coursePage{padding:20px 14px 40px}#coursePage .detail-hero{padding:16px}#coursePage .detail-panel{padding:20px 16px}#coursePage .detail-tabs{padding:0 16px;gap:18px}}

#coursePage.learning-page{max-width:1520px;padding:24px 32px 60px}.study-back{margin-bottom:22px}.study-back button{font-size:14px}.study-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;grid-template-rows:auto 1fr;gap:22px 28px;align-items:start}.study-heading{grid-column:1;grid-row:1;min-width:0}.study-heading h1{font-size:24px;line-height:1.5;margin:0 0 10px}.study-heading p{margin:0;color:var(--muted);font-size:15px}.study-teacher{grid-column:2;grid-row:1;display:flex;gap:14px;align-items:center;padding:4px 0}.study-teacher img,.teacher-placeholder{width:54px;height:54px;border-radius:50%;object-fit:cover;flex-shrink:0}.teacher-placeholder{display:grid;place-items:center;background:#e1edff;color:var(--blue);font-size:22px}.study-teacher small{display:block;color:var(--muted);font-size:12px}.study-teacher strong{display:block;font-size:17px}.study-layout>.viewer{grid-column:1;grid-row:2}.study-sidebar{grid-column:2;grid-row:2;min-width:0}.learning-page .video-wrap{border-radius:12px}.learning-page .video-wrap video{aspect-ratio:16/9;max-height:none;background:#0d1420;object-fit:contain}.learning-page #fullscreen{margin-top:12px}.study-notes{background:white;border:1px solid var(--line);border-radius:12px;margin-bottom:18px;overflow:hidden}.study-notes summary{cursor:pointer;padding:16px;font-weight:600}.study-notes summary span{float:right;color:var(--muted);font-size:12px;font-weight:400}.note-editor{padding:0 16px 16px}.note-editor p{font-size:12px;color:var(--muted)}.note-editor textarea{font-size:14px;min-height:150px}.note-editor button{font-size:13px;margin-top:8px}.study-catalog{background:white;border:1px solid var(--line);border-radius:12px;overflow:hidden}.study-catalog h2{font-size:17px;margin:0;padding:16px;border-bottom:1px solid var(--line)}.study-catalog h2 small{font-size:12px;color:var(--muted);font-weight:400}.study-catalog .lesson-list{max-height:65vh;overflow:auto;gap:0;padding:6px}.study-catalog button{display:flex;gap:10px;border:0;border-radius:8px;padding:13px 10px;line-height:1.6}.study-catalog button.current{background:#eaf1ff;color:var(--blue);font-weight:600}.chapter-index{font-size:12px;color:#8595ac;flex-shrink:0;padding-top:2px}.learning-page .rich{background:white;padding:24px;border-radius:12px}.learning-page .video-wrap:fullscreen video{height:100%;max-height:100vh}
@media(max-width:850px){#coursePage.learning-page{padding:18px 14px 40px}.study-layout{grid-template-columns:minmax(0,1fr);gap:16px}.study-heading{grid-row:1}.study-layout>.viewer{grid-column:1;grid-row:2}.study-teacher{grid-column:1;grid-row:3}.study-sidebar{grid-column:1;grid-row:4}.study-heading h1{font-size:21px}.study-catalog .lesson-list{max-height:400px}}

/* Compact learning workspace with an adjustable sidebar. */
body.is-studying .cj-header{height:62px}body.is-studying .cj-header .cj-brand{font-size:18px}body.is-studying .cj-header .cj-brand img{width:28px;height:28px}#coursePage.learning-page{padding-top:18px}.learning-page .study-layout{grid-template-columns:minmax(0,1fr) 18px minmax(260px,var(--sidebar-width,25%));column-gap:8px;row-gap:18px}.learning-page .study-heading{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 16px;align-items:center}.learning-page .study-heading h1{grid-column:1;grid-row:1;font-size:22px;margin:0}.learning-page .study-heading #lessonTitle{grid-column:1/-1}.learning-page #backCourse{grid-column:2;grid-row:1;padding:5px 10px;font-size:13px;white-space:nowrap}.learning-page .study-teacher,.learning-page .study-sidebar{grid-column:3}#studyDivider{grid-column:2;grid-row:2;align-self:stretch;min-height:240px;cursor:col-resize;touch-action:none;position:relative;border-radius:8px}#studyDivider:before{content:'';position:absolute;top:0;bottom:0;left:8px;width:2px;background:#dce5ee}#studyDivider:after{content:'⋮';position:absolute;top:120px;left:1px;width:16px;text-align:center;border-radius:8px;background:#e3ebf5;color:#6683a6}#studyDivider:hover,#studyDivider.dragging,#studyDivider:focus-visible{background:#dce8fc;outline:0}#studyDivider:hover:before,#studyDivider.dragging:before{background:var(--blue)}.learning-page .note-editor textarea{resize:none;overflow:hidden;min-height:140px;height:auto}.learning-page .study-teacher img,.learning-page .teacher-placeholder{height:46px;width:46px}
@media(max-width:850px){.learning-page .study-layout{grid-template-columns:minmax(0,1fr)}.learning-page .study-teacher,.learning-page .study-sidebar{grid-column:1}#studyDivider{display:none}.learning-page .study-heading h1{font-size:19px}.learning-page .study-heading{gap:8px}.learning-page #backCourse{font-size:12px;padding:4px 7px}}
@media(max-width:760px){body.is-studying .cj-header{height:88px}body.is-studying .cj-header .cj-nav{height:34px;margin-top:6px}}

/* Long notes scroll inside their editor, without expanding the learning page. */
.learning-page .note-editor textarea{max-height:clamp(140px,32vh,320px);overflow-y:auto;overscroll-behavior-y:contain;scrollbar-gutter:stable}
@media(min-width:851px){.learning-page .study-layout>.viewer{position:static;top:auto}.learning-page .video-wrap video{max-height:calc(100dvh - 150px)}.learning-page .study-sidebar{max-height:none;overflow:visible}.learning-page #studyDivider{max-height:calc(100dvh - 100px)}}

.note-tools{display:flex;flex-wrap:wrap;gap:5px;padding:0 0 8px}.note-editor .note-tools button{margin:0;padding:5px 8px;min-width:32px}.learning-page #note{height:220px;min-height:120px;max-height:500px;overflow-y:auto;overscroll-behavior:contain;white-space:pre-wrap;overflow-wrap:anywhere;background:white;border:1px solid var(--line);border-radius:10px;padding:12px;font-size:14px;line-height:1.7}.learning-page #note:focus{outline:2px solid #9cbcff}.learning-page #note p{margin:0;font:inherit;color:inherit}.learning-page #note:empty:before{content:'记录本节要点，仅自己可见';color:var(--muted);pointer-events:none}#noteDivider{height:18px;cursor:row-resize;touch-action:none;position:relative;margin:-8px 0 8px;border-radius:8px}#noteDivider:after{content:'';position:absolute;left:35%;right:35%;top:7px;height:4px;border-radius:3px;background:#b6c8de}#noteDivider:hover,#noteDivider:focus-visible{background:#dfebfc;outline:0}.study-notes:not([open])+#noteDivider{display:none}

.study-catalog .lesson-list button{align-items:flex-start}.study-catalog .lesson-list button>span:nth-child(2){flex:1;min-width:0}.study-catalog .lesson-status{flex-shrink:0;font-size:11px;line-height:1.6;padding:2px 5px;border-radius:5px;background:#eef2f6;color:#617287;font-weight:400;white-space:nowrap}.study-catalog .lesson-status[data-done="1"]{background:#e3f4eb;color:#19744d}

#courseExchange{grid-column:1;grid-row:3;background:white;border:1px solid var(--line);border-radius:14px;padding:22px;max-height:650px;overflow:auto;overscroll-behavior:contain}#courseExchange h2{font-size:20px;margin:0 0 16px}.social-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:12px 0}.social-actions button{font-size:12px;padding:5px 10px}.social-item{padding:18px 0;border-top:1px solid var(--line)}.social-meta{font-size:12px;color:var(--muted)}.social-body{white-space:pre-wrap;overflow-wrap:anywhere}.social-reply{margin:12px 0 0 18px;padding-left:12px;border-left:3px solid #e9eef5}.social-stars{color:#c8811e}.social-item small{color:var(--muted)}#reviewForm textarea,#exchangeForm textarea{display:block;width:100%;min-height:100px;margin:12px 0}#myReview{padding:16px;background:#f6f8fc;border-radius:10px;margin:18px 0}#timestampLabel input{width:auto}#exchangeNotice,#reviewResult{font-size:13px;color:#376c87}.detail-tabs{flex-wrap:wrap}@media(max-width:850px){#courseExchange{grid-column:1;grid-row:5;padding:16px;max-height:600px}}

/* Keep media and exchange in one independent column; sidebar height must not space them apart. */
.learning-page .study-main{grid-column:1;grid-row:2;min-width:0}.learning-page .study-main>#courseExchange{margin-top:18px}.learning-page .study-main>.viewer>.actions:empty{display:none}
@media(max-width:850px){.learning-page .study-main{display:contents}.learning-page .study-main>.viewer{grid-column:1;grid-row:2}.learning-page .study-main>#courseExchange{margin-top:0}}

/* Compact exchange controls. */
#courseExchange .exchange-header{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:16px}#courseExchange .exchange-header h2{margin:0;white-space:nowrap}#courseExchange .exchange-sorts{display:flex;align-items:center;gap:6px;color:var(--muted)}#courseExchange .exchange-sorts button{border:0;background:none;padding:4px 0;color:var(--muted);white-space:nowrap;font-size:14px}#courseExchange .exchange-sorts button[aria-pressed=true]{color:var(--ink);font-weight:700}#exchangeScope{margin-left:auto;padding:4px 8px;font-size:13px}#courseExchange .exchange-kinds{display:flex;gap:8px;align-items:center;flex-wrap:wrap}#courseExchange .exchange-kinds button{padding:5px 12px;font-size:13px}#courseExchange .exchange-kinds button[aria-pressed=true]{background:#eaf1ff;border-color:#b7cbf4;color:var(--blue);font-weight:600}#courseExchange .exchange-footer{display:flex;gap:12px;align-items:center;flex-wrap:wrap}#timestampLabel{font-size:13px;color:var(--muted)}#timestampLabel input{margin-right:6px}#courseExchange .exchange-submit{display:flex;gap:8px;margin-left:auto}#courseExchange .exchange-submit button{font-size:13px;padding:6px 14px}#exchangeNotice:empty{display:none}#exchangeNotice:not(:empty){margin-top:8px}#exchangeForm textarea{margin:10px 0;min-height:90px}#courseExchange button:focus-visible{outline:2px solid #8aafff;outline-offset:2px}@media(max-width:520px){#courseExchange .exchange-header{gap:8px 12px}#courseExchange .exchange-header h2{font-size:18px}#courseExchange .exchange-sorts{gap:2px}#exchangeScope{font-size:12px}}

.review-score{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.review-stars{display:flex;gap:3px}.review-stars button{padding:0 3px;border:0;background:transparent;color:#bac5d2;font-size:30px;line-height:1.4;border-radius:5px}.review-stars button.filled{color:#e5a21a}.review-stars button:hover{color:#c88708}.review-stars button:focus-visible{outline:2px solid #2659d9;outline-offset:2px}#reviewScoreText{font-size:14px;color:var(--muted)}

/* Rounded golden rating stars, independent of system font. */
.review-stars{gap:7px}.review-stars button{display:grid;place-items:center;padding:3px;border-radius:8px;line-height:1;color:#dbe1e8;transition:color .15s ease,transform .15s ease}.rating-star-icon{display:block;width:30px;height:30px}.review-stars button.filled{color:#ffc533}.review-stars button:hover{color:#ffbb24;transform:translateY(-1px)}.review-stars button:active{transform:scale(.94)}@media(prefers-reduced-motion:reduce){.review-stars button{transition:none;transform:none}}

.detail-price.purchase-price strong{color:#ff783c}.detail-info #buy.purchase-buy{background:#f5682f;border-color:#f5682f;color:#fff;box-shadow:0 5px 14px #f5682f24}.detail-info #buy.purchase-buy:hover{background:#e95720;border-color:#e95720}.detail-info #give{background:#fff2e9;border-color:#ffc6a5;color:#b94315}.detail-info #give:hover{background:#ffe6d6;border-color:#ff9d67}

/* Course checkout */
.payment-dialog{width:min(860px,94vw);padding:30px;color:var(--ink);background:linear-gradient(135deg,#fff7f0 0,#fff 45%)}.payment-heading{margin-bottom:24px}.payment-kicker{font-size:13px;color:#af551f;letter-spacing:1px}.payment-heading h2{font-size:25px;margin:8px 45px 0 0;line-height:1.4}.payment-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:30px}.payment-cover{display:block;width:100%;max-height:180px;object-fit:contain;background:#f3f6fa;border-radius:12px}.payment-course h3{font-size:18px;line-height:1.6;margin:16px 0 8px}.payment-teacher,.payment-validity{font-size:13px;color:var(--muted)}.payment-total{display:flex;gap:16px;align-items:baseline;padding-top:12px}.payment-total span{font-size:14px}.payment-total strong{color:#ff783c;font-size:36px;line-height:1.3}.payment-benefit{padding:12px;background:#fff2e7;border-radius:10px;color:#965028;font-size:13px}.payment-scan{text-align:center;background:white;border:1px solid var(--line);border-radius:16px;padding:20px 16px}.payment-scan h3{font-size:17px;margin:0 0 16px}.payment-qr{display:inline-block;padding:8px;border:1px solid #e8edf2;border-radius:12px;background:#fff}.payment-qr .qr{width:220px;height:220px;margin:0;max-width:100%}.payment-scan #paystate{color:#198773;font-size:14px;margin:14px 0}.payment-tip{font-size:12px;line-height:1.7;color:var(--muted);margin-bottom:0}@media(max-width:640px){.payment-dialog{padding:20px}.payment-heading h2{font-size:21px}.payment-layout{grid-template-columns:1fr;gap:16px}.payment-cover{display:none}.payment-course h3{margin-top:0}.payment-total{padding-top:0}.payment-heading{margin-bottom:16px}.payment-qr .qr{width:200px;height:200px}}

/* Acquired course: calm green status and prominent learning action. */
.detail-price.study-access{background:linear-gradient(120deg,#eaf8f1,#f0faf9);border:1px solid #cfeadc}.detail-price.study-access strong{color:#16805b;font-size:28px;display:inline-flex;align-items:center;gap:10px}.detail-price.study-access strong:before{content:'✓';display:inline-grid;place-items:center;width:27px;height:27px;border-radius:50%;background:#d0efdf;color:#16805b;font-size:18px;flex-shrink:0}.detail-price.study-access>span,.detail-price.study-access small{color:#57776b}.detail-info #study{background:linear-gradient(115deg,#159566,#087f83);border-color:#108a70;color:white;box-shadow:0 5px 14px #138d6a26;transition:box-shadow .18s ease,transform .18s ease}.detail-info #study:hover{background:linear-gradient(115deg,#10855a,#076d72);box-shadow:0 7px 18px #138d6a36;transform:translateY(-1px)}.detail-info #study:focus-visible{outline:3px solid #84d5ba;outline-offset:3px}.detail-info #study:active{transform:translateY(0)}@media(max-width:520px){.detail-price.study-access strong{font-size:24px}}@media(prefers-reduced-motion:reduce){.detail-info #study{transition:none;transform:none}}

/* Reference green: sRGB #00cc7e. */
.detail-price.study-access{background:linear-gradient(120deg,#e7faf2,#f1fcf7);border-color:#bfefd9}.detail-price.study-access strong{color:#00cc7e}.detail-price.study-access strong:before{background:#d0f6e5;color:#00cc7e}.detail-price.study-access>span,.detail-price.study-access small{color:#537969}.detail-info #study{background:#00cc7e;border-color:#00cc7e;box-shadow:0 5px 14px #00cc7e26}.detail-info #study:hover{background:#00b971;border-color:#00b971;box-shadow:0 7px 18px #00cc7e36}.detail-info #study:focus-visible{outline-color:#80e6bf}

.course-ongoing{display:inline-block;vertical-align:middle;margin-left:12px;padding:4px 15px;border-radius:999px;background:#e5f8f1;color:#0cba88;font-size:15px;font-weight:500;line-height:1.6;white-space:nowrap}.detail-teacher-row{display:flex;align-items:baseline;gap:6px 18px;flex-wrap:wrap;margin:16px 0}.detail-teacher-row .detail-teacher{margin:0}.access-period{font-size:13px;color:var(--muted)}@media(max-width:520px){.course-ongoing{font-size:13px;padding:3px 12px;margin-left:8px}}

/* Compact course catalogue. */
#content>.grid{grid-template-columns:repeat(4,minmax(0,1fr))}#content .card{display:flex;flex-direction:column;background:#fff;transition:border-color .15s ease,box-shadow .15s ease}#content .card:hover{border-color:#b5c9e3;box-shadow:0 6px 20px #233e6110}#content .card:focus-visible{outline:3px solid #8db6ff;outline-offset:3px}#content .card .cover{height:auto;aspect-ratio:16/9;object-fit:cover}#content .card-body{background:#fff;padding:18px 18px 24px;display:flex;flex-direction:column;flex:1}#content .card h3{font-size:17px;line-height:1.6;margin:0 0 12px}#content .card .card-teacher{margin:0 0 12px;font-size:13px}#content .card .progress{margin-bottom:12px}#content .card .bottom{margin-top:auto;padding-top:36px}#content .card .price{font-size:26px;line-height:1.3;color:#ff783c;font-weight:700}#content .card .price.card-access{font-size:14px;color:#109e71}@media(max-width:1000px){#content>.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:520px){#content>.grid{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){#content .card{transition:none}}

#content .card-progress-pill{display:inline-flex;align-items:center;padding:5px 14px;border-radius:999px;background:#e3f8f1;color:#0cba88;font-size:14px;font-weight:500;line-height:1.6;white-space:nowrap}

/* Account navigation */
.account-menu{position:relative;flex-shrink:0}.account-dropdown{position:absolute;right:0;top:calc(100% + 10px);width:180px;padding:7px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 30px #1d344b18;z-index:100}.account-dropdown[hidden]{display:none}.account-dropdown button{display:block;width:100%;text-align:left;border:0;background:#fff;padding:10px 14px;border-radius:8px;white-space:nowrap}.account-dropdown button:hover,.account-dropdown button:focus-visible{background:#f0f5fc;color:var(--blue)}

/* Match careers banner with the signed-in service button visible. */
main>.hero{height:159.24px;min-height:159.24px;padding:22px 32px;border-radius:20px;background:#eef5fb url('/website-assets/classroom-campus-people-v3.webp') center 32%/cover no-repeat;isolation:isolate}
main>.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(248,252,255,.88) 0%,rgba(248,252,255,.76) 40%,rgba(248,252,255,.28) 68%,rgba(248,252,255,0) 100%);pointer-events:none;z-index:0}
main>.hero>div{position:relative;z-index:1;max-width:78%}main>.hero small{font-size:11px;line-height:1.5;letter-spacing:2px;color:#32677d}main>.hero h1{font-size:26px;line-height:1.3;margin:6px 0 8px}main>.hero p{font-size:14px;line-height:1.7;margin:0;color:#36546a}
@media(max-width:1000px) and (min-width:681px){main>.hero{padding:20px 24px}main>.hero h1{font-size:24px}main>.hero p{font-size:12px}}
@media(max-width:680px){main>.hero{height:188px;min-height:188px;padding:18px 20px;background-position:35% center}main>.hero:before{background:linear-gradient(90deg,rgba(248,252,255,.9),rgba(248,252,255,.68))}main>.hero>div{max-width:100%}main>.hero h1{font-size:22px;line-height:1.35;margin:6px 0}main>.hero p{font-size:12px;line-height:1.7}}