:root{--navy:#102747;--gold:#b88225;--muted:#728094;--line:#e5e8ec;--paper:#fff;--cream:#faf8f3}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:#f5f6f8;color:var(--navy);font-family:Arial,Helvetica,sans-serif;padding-bottom:115px}button,select,input{font:inherit}button,a,select{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.4;cursor:default}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #d4a341;outline-offset:4px}button{border:0;border-radius:8px;padding:13px 20px;font-weight:700}a{color:inherit;text-decoration:none}.brandbar{height:90px;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 6%;border-bottom:1px solid var(--line)}.brandbar a{display:flex;align-items:center;gap:14px;font:26px Georgia,serif;letter-spacing:.03em;color:var(--gold)}.brandmark{display:block;width:64px;height:30px;overflow:hidden;position:relative}.brandmark img{position:absolute;width:90px;max-width:none;left:-13px;top:-46px}.edition{font-size:11px;letter-spacing:.17em;color:var(--muted)}.edition b{margin-left:16px;padding:7px 10px;border:1px solid #dbc99f;border-radius:4px;color:var(--gold)}.welcome{min-height:540px;display:grid;grid-template-columns:1.15fr 1fr;align-items:center;padding:48px max(6%,calc((100vw - 1240px)/2));background:radial-gradient(ellipse at 80% 50%,#eee5d1 0,transparent 50%),#fbfaf6;overflow:hidden;gap:40px}.eyebrow{font-size:10px;letter-spacing:.2em;font-weight:800;color:var(--gold);margin:0 0 17px}.intro h1{font:normal clamp(40px,4.6vw,67px)/1.06 Georgia,serif;letter-spacing:-.035em;margin:0 0 24px}.intro h1 em{font-style:normal;color:var(--gold)}.intro-copy{font-size:17px;line-height:1.7;color:#5d6b7e;margin-bottom:27px}.primary{background:var(--navy);color:white;box-shadow:0 6px 16px #10274716}.quiet{font-size:13px;line-height:1.6;color:var(--muted)}.cover-stage{position:relative;display:flex;align-items:center;flex-direction:column;padding:5px}.cover{width:230px;transform:perspective(1000px) rotateY(-9deg) rotateZ(2deg);box-shadow:20px 22px 35px #10274730;border-left:6px solid #d9c499;z-index:1}.orbit{position:absolute;width:365px;height:365px;border-radius:50%;border:1px solid #d7c39b;top:15px}.orbit:after{content:'';position:absolute;inset:25px;border:1px solid #e4d9c0;border-radius:50%}.cover-caption{font-size:9px;letter-spacing:.22em;color:#9d855a;margin-top:25px}.workspace{max-width:1330px;margin:0 auto;display:grid;grid-template-columns:260px 1fr;gap:42px;padding:48px 30px}.shelf{padding:20px 8px}.shelf h2{font:normal 29px/1.17 Georgia,serif;margin:0}.shelf>label{display:block;font-size:13px;font-weight:700;margin:30px 0 9px}select{max-width:100%;color:var(--navy);border:1px solid #d3d9e2;background:#fff;border-radius:6px;padding:12px 10px}.shelf select{width:100%;font-size:13px}.lesson-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin-top:20px}.lesson-grid button{padding:10px 0;border-radius:7px;background:white;color:#718096;border:1px solid #e1e5eb;font-size:12px}.lesson-grid button.current{background:var(--navy);color:white;border-color:var(--navy)}.lesson-grid button.done:not(.current){border-color:#c69e52;color:#956a19;background:#fff9ed}.side-footer{font-size:9px;letter-spacing:.14em;border-top:1px solid #dce1e8;margin-top:30px;padding-top:22px;color:var(--gold);line-height:2}.side-footer span{color:var(--muted);letter-spacing:0}.reading-tools{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;font-size:11px;font-weight:700;letter-spacing:.07em}.outline{border:1px solid #cfd6e0;background:transparent;color:var(--navy);box-shadow:none;font-size:12px}.lesson{background:white;padding:45px clamp(24px,4vw,60px);border-radius:14px;border:1px solid #e5e7ec;box-shadow:0 10px 36px #152a4506}.lesson h1{font:normal clamp(30px,3.4vw,43px)/1.16 Georgia,serif;letter-spacing:-.025em;margin:0}.gold-rule{height:3px;width:55px;background:var(--gold);margin:25px 0 28px}.dialogue{list-style:none;padding:0;margin:0;counter-reset:line}.dialogue li{counter-increment:line;display:flex;gap:19px;font-size:19px;line-height:1.55;padding:11px 0;border-bottom:1px solid #f0f2f5}.dialogue li:before{content:counter(line,decimal-leading-zero);color:#b39460;font-size:11px;font-weight:700;min-width:20px;padding-top:7px}.supplemental{margin-top:32px;padding-top:26px;border-top:1px solid #dcc8a1}.supplemental h2{font:normal 24px/1.3 Georgia,serif;margin:0 0 20px}.supplemental p{font-size:17px;line-height:1.7;margin:8px 0}.lesson-nav{display:flex;justify-content:space-between;margin:20px 0 28px}.review-card{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:25px;background:#eaeef3;border-radius:10px}.review-card .eyebrow{font-size:9px;margin-bottom:9px}.review-card h2{font:normal 22px Georgia,serif;margin:0}.review-card p:last-child{font-size:12px;color:#65758a;line-height:1.5}.review-card button{white-space:nowrap}.review-banner{background:#fff1d2;padding:15px 20px;display:flex;justify-content:space-between;align-items:center;border-radius:8px;margin-bottom:16px;font-size:13px;font-weight:700}.review-banner button{background:transparent;color:var(--navy);font-size:12px;padding:7px}.player{position:fixed;bottom:0;left:0;right:0;z-index:5;display:flex;gap:19px;align-items:center;padding:19px max(3%,calc((100vw - 1270px)/2));background:var(--navy);color:#fff;box-shadow:0 -6px 30px #152a4515}.track-select label,.speed-label{font-size:9px;font-weight:700;letter-spacing:.12em;color:#b9c5d8}.track-select select,.speed-label select{display:block;padding:4px 0;border:0;background:transparent;color:#fff;font-size:13px;margin-top:5px}.player option{color:var(--navy)}.play{width:48px;height:48px;padding:0;background:#ddb55e;color:var(--navy);border-radius:50%;font-size:18px}.restart{padding:5px;background:transparent;color:#cdd7e6;font-size:26px}.playback{flex:1;min-width:90px}.playback p{margin:0 0 8px;font-size:12px;color:#d0d9e6}.playback input{width:100%;accent-color:#ddb55e;height:5px;cursor:pointer}.echo{background:#ffffff0c;color:#fff;border:1px solid #5a6e87;min-width:92px;font-size:11px;letter-spacing:.07em}.echo span{display:block;font-size:9px;margin-top:4px;color:#b7c4d6}.echo[aria-pressed=true]{background:#d5ad59;color:var(--navy);border-color:#d5ad59}.echo[aria-pressed=true] span{color:var(--navy)}html{scroll-behavior:smooth}.translation-view .lesson h1{font-size:32px}.translation-view #lesson-label{letter-spacing:.06em}
@media(max-width:850px){.workspace{grid-template-columns:190px 1fr;gap:20px;padding:30px 18px}.welcome{padding:45px 5%;gap:20px}.cover{width:190px}.orbit{width:270px;height:270px}.brandbar{padding:0 4%}.edition{display:none}.review-card{align-items:flex-start;flex-direction:column}.player{gap:12px}.speed-label select{font-size:11px}.lesson{padding:30px 23px}}
@media(max-width:600px){body{padding-bottom:155px}.brandbar{height:72px}.brandbar a{font-size:21px}.welcome{grid-template-columns:1fr .7fr;min-height:365px;padding:32px 20px;gap:5px}.intro h1{font-size:34px}.intro-copy{font-size:13px}.cover{width:128px}.orbit{width:175px;height:175px}.cover-caption{display:none}.intro .eyebrow{font-size:8px}.intro button{font-size:12px;padding:12px}.workspace{display:block;padding:20px 14px}.shelf{padding:0 4px 20px}.shelf h2,.shelf>.quiet,.shelf>.eyebrow,.side-footer,.lesson-grid{display:none}.shelf>label{margin-top:0}.shelf select{font-size:16px}.reading-tools{font-size:10px}.lesson h1{font-size:30px}.dialogue li{font-size:18px;gap:12px}.player{flex-wrap:wrap;padding:12px 14px;gap:10px}.track-select{width:100px}.playback{flex-basis:calc(100% - 210px)}.speed-label{display:flex;align-items:center;gap:10px;flex:1}.speed-label select{margin:0}.echo{padding:9px 16px}.echo span{display:inline;margin-left:8px}.review-banner{padding:12px;font-size:11px}.restart{width:25px}.review-card{padding:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.review-card{margin-top:24px;flex-wrap:wrap}
.review-card h2{font:normal clamp(20px,2.3vw,26px)/1.25 Georgia,serif;color:var(--gold);letter-spacing:.03em}
.lesson-nav{justify-content:flex-end;margin:20px 0 0}
.supp-heading{display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.supp-heading button{white-space:nowrap}
.audio-label{font-size:15px;letter-spacing:.12em;color:#ddb55e}
.echo-group{display:flex;align-items:center;gap:12px}
#mode-help{font-size:12px;line-height:1.5;max-width:150px;margin:0;color:#e1e7ef}
.player .play{flex-shrink:0}
@media(max-width:850px){.player{flex-wrap:wrap}.echo-group{margin-left:auto}.playback{min-width:100px}}
@media(max-width:600px){body{padding-bottom:185px}.echo-group{margin-left:0}.speed-label{flex:1;min-width:120px}#mode-help{max-width:145px}.supp-heading{align-items:flex-start}.review-card h2{font-size:21px}.audio-label{font-size:12px}.playback{flex:1}}

.shelf h2.practice-heading{font-size:clamp(20px,2vw,29px)}.practice-heading span{white-space:nowrap}

.intro .eyebrow{font-size:13px}
.shelf h2.practice-heading{font-weight:700}
#start-review{background:#ddb55e;border-color:#c99c44;color:var(--navy);font-weight:700}
#start-review:hover:not(:disabled){background:#e6c477}
@media(max-width:600px){.intro .eyebrow{font-size:10px;line-height:1.6}.confidence-title{font-size:clamp(19px,5vw,30px)}}

/* Welcome and textbook are distinct screens. */
body.welcome-view{padding-bottom:0;background:#fbfaf6}
.header-actions{display:flex;align-items:center;gap:24px}
.welcome{min-height:calc(100vh - 90px);max-width:none;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:60px;padding-top:42px;padding-bottom:42px}
.language-choice{margin-bottom:34px;max-width:275px}
.language-choice label{display:block;font-size:12px;color:#526077;margin-bottom:9px;line-height:1.8}
.language-choice label span{margin-left:8px}
.language-choice select{width:100%;background:#fffdf8;border-color:#d9c9a8}
.welcome .intro h1{font-size:clamp(35px,4.3vw,62px);margin-bottom:16px}
.welcome-chinese{font-family:Georgia,'Noto Serif CJK SC',serif;font-size:24px;color:var(--gold);margin:0 0 22px;letter-spacing:.08em}
.welcome .intro-copy{font-size:17px;margin:0 0 25px;line-height:1.9}
.welcome .intro-copy span{font-size:15px}
#continue{display:inline-flex;align-items:center;gap:15px;background:#ddb55e;color:var(--navy);padding:18px 25px;border:1px solid #c99c44;box-shadow:0 7px 20px #b8822520}
#continue:hover{background:#e6c477}
#continue span[lang]{font-weight:400;border-left:1px solid #10274740;padding-left:15px}
#resume-note{font-size:11px;line-height:1.8;margin-top:17px}
.welcome .cover{width:min(100%,340px);transform:perspective(1400px) rotateY(-5deg);box-shadow:18px 24px 40px #10274725}
.welcome .orbit{width:420px;height:420px;max-width:110%;top:50%;transform:translateY(-50%)}
.workspace{padding-top:28px}
@media(max-width:850px){.welcome{gap:30px;padding:35px 5%}.welcome .intro h1{font-size:36px}.welcome .cover{width:265px}#continue{gap:10px;padding:16px;font-size:13px}}
@media(max-width:600px){.welcome{min-height:calc(100vh - 72px);grid-template-columns:1fr;gap:32px;padding:26px 24px 38px}.welcome .intro{max-width:360px;width:100%;margin:auto}.welcome .intro h1{font-size:42px}.welcome .confidence-title{font-size:1em}.welcome .cover-stage{grid-row:2}.welcome .cover{width:205px}.welcome .orbit{width:260px;height:260px}.welcome .cover-caption{display:block}.language-choice{margin-bottom:24px;max-width:none}.header-actions{gap:0}.brandbar a{font-size:18px;gap:5px}.brandmark{width:45px}#home-button{padding:10px;font-size:11px}.welcome-chinese{font-size:21px}.welcome .intro .eyebrow{font-size:12px}}

.book-link{display:block;margin-top:22px;color:#836019;font-weight:600;text-underline-offset:4px}.book-link:focus-visible{outline:3px solid #be8b26;outline-offset:5px}#edition-status{color:#745319;font-size:14px}
.supplemental p{font-size:19px;line-height:1.55}@media(max-width:600px){.supplemental p{font-size:18px}}