:root{color:#163149;background:#f8f1e6;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;--navy: #163149;--teal: #168c89;--teal-dark: #0d6f6d;--coral: #f36f60;--ivory: #f8f1e6;--paper: #fffdf8;--ink-soft: #69737d;--line: #d9d3c8;--green: #08a96b;--sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--shadow: 0 20px 55px rgba(22, 49, 73, .1)}*{box-sizing:border-box}html{min-width:320px;background:var(--ivory)}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(circle at 88% 6%,rgba(22,140,137,.08),transparent 28rem),var(--ivory)}button,input,textarea{font:inherit}button{color:inherit}button:focus-visible,a:focus-visible{outline:3px solid 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clamp(1.18rem,2vw,1.55rem)/1.55 Georgia,"Times New Roman",serif}.programme-facts{display:flex;flex-wrap:wrap;gap:12px}.programme-facts span{display:inline-flex;align-items:baseline;gap:7px;padding:11px 16px;border:1px solid var(--line);border-radius:999px;color:var(--ink-soft);background:#fffdf8b8}.programme-facts strong{color:var(--navy)}.directory{scroll-margin-top:140px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.section-heading .eyebrow{margin-bottom:10px}.directory-count{flex:0 0 auto;padding-bottom:8px;color:var(--ink-soft);font-size:.95rem}.theme-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.theme-card{min-height:190px;position:relative;display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto 1fr auto;gap:12px 18px;padding:25px;overflow:hidden;text-align:left;border:1px solid var(--line);border-radius:28px;background:#fffdf8e6;box-shadow:0 8px 24px #16314909;cursor:pointer;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.theme-card:hover{transform:translateY(-4px);border-color:#168c8973;box-shadow:var(--shadow)}.theme-card-selected{border-color:var(--teal);box-shadow:0 0 0 3px #168c891f,var(--shadow)}.theme-number{grid-column:1 / -1;color:var(--coral)}.theme-icon{width:58px;height:58px;display:grid;place-items:center;align-self:start;border-radius:18px;background:#edf5f1;font-size:1.75rem}.theme-title{align-self:center;font:500 clamp(1.4rem,2.3vw,1.95rem)/1.18 Georgia,"Times New Roman",serif}.theme-meta{grid-column:2;align-self:end;color:var(--teal);font-size:.95rem;font-weight:750}.selection-bar{position:sticky;bottom:22px;z-index:10;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;margin-top:28px;padding:18px 22px;border:1px solid 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rgba(22,140,137,.18);border-color:var(--teal)}.sentence-input::placeholder{color:#92999e}.sentence-meta{display:flex;justify-content:space-between;gap:20px;margin:10px 5px 0;color:var(--ink-soft);font-size:.78rem}.sentence-tools{margin-top:22px}.secondary-button{min-height:52px;padding:12px 20px;border:1px solid var(--line);border-radius:999px;background:var(--paper);font-weight:800}.sentence-feedback{margin-top:26px;padding:22px;border-left:7px solid var(--teal);border-radius:18px;background:#e8f5f1}.sentence-feedback-failed,.sentence-feedback-unverified{border-left-color:var(--coral);background:#fff0ed}.sentence-feedback strong{display:block;margin-bottom:8px;font:500 1.55rem/1.2 Georgia,Times New Roman,serif}.sentence-feedback p{margin-bottom:0;color:var(--ink-soft);line-height:1.5}.text-link-button{width:max-content;padding:4px 0;color:var(--ink-soft);background:transparent;text-align:left;text-decoration:underline}.headword-directory-page{width:min(100% - 64px,1180px);padding-bottom:150px}.directory-back-button{margin-bottom:30px}.headword-directory-header{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:34px}.headword-directory-title{display:flex;align-items:center;gap:20px}.headword-theme-icon{width:76px;height:76px;display:grid;flex:0 0 auto;place-items:center;border:1px solid rgba(22,140,137,.28);border-radius:24px;background:#e4f3ef;font-size:2rem}.headword-directory-title h1{margin:2px 0 5px;font-size:clamp(2.4rem,5vw,4.5rem)}.headword-theme-title-zh{margin:0;color:var(--ink-soft);font-size:1.05rem}.headword-directory-summary{max-width:370px;margin:0;color:var(--ink-soft);line-height:1.55}.headword-search{display:block;margin-bottom:18px}.headword-search-label{display:block;margin-bottom:9px;color:var(--teal-dark);font-size:.72rem;font-weight:900;letter-spacing:.16em}.headword-search-control{position:relative;display:block}.headword-search-control:before{position:absolute;top:50%;left:20px;content:"⌕";color:var(--ink-soft);font-size:1.35rem;transform:translateY(-50%) rotate(-20deg);pointer-events:none}.headword-search-control input{width:100%;min-height:58px;padding:13px 58px 13px 54px;border:1px solid var(--line);border-radius:18px;outline:0;background:var(--paper);color:var(--navy);font:inherit;box-shadow:0 9px 28px #1631490d}.headword-search-control input:focus{border-color:var(--teal);box-shadow:0 0 0 4px #168c891f}.headword-search-clear{position:absolute;top:50%;right:14px;width:36px;height:36px;border-radius:50%;background:#edf2ef;color:var(--ink-soft);font-size:1.15rem;transform:translateY(-50%)}.headword-results-summary{margin-bottom:38px;color:var(--ink-soft);font-size:.86rem}.headword-area-list{display:grid;gap:42px}.headword-area{scroll-margin-top:118px}.headword-area-heading{display:flex;align-items:center;gap:14px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line)}.headword-area-heading h2{margin:0;font-size:clamp(1.55rem,3vw,2.15rem)}.headword-area-number{width:42px;height:42px;display:grid;flex:0 0 auto;place-items:center;border-radius:50%;background:var(--navy);color:#fff;font-weight:900}.headword-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.headword-card{min-width:0;min-height:190px;display:flex;flex-direction:column;align-items:stretch;padding:22px;border:1px solid var(--line);border-radius:24px;background:var(--paper);color:var(--navy);text-align:left;box-shadow:0 10px 30px #1631490b;transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease}.headword-card:hover{border-color:#168c898c;box-shadow:0 16px 36px #16314917;transform:translateY(-2px)}.headword-card:focus-visible{outline:3px solid rgba(22,140,137,.3);outline-offset:3px}.headword-card-selected{border-color:var(--teal);background:#eaf6f2;box-shadow:0 0 0 3px #168c8921,0 16px 36px #16314914}.headword-card-topline{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.headword-source-number{color:var(--ink-soft);font-size:.7rem;font-weight:900;letter-spacing:.12em}.headword-status{padding:6px 10px;border-radius:999px;font-size:.66rem;font-weight:900;letter-spacing:.05em;white-space:nowrap}.headword-status-passport-earned{background:#dff4e9;color:#08764d}.headword-status-review-needed{background:#ffebe7;color:#b64a3d}.headword-status-in-progress{background:#dff1f0;color:var(--teal-dark)}.headword-status-not-started{background:#f0eee8;color:var(--ink-soft)}.headword-name{margin-bottom:8px;font:500 2rem/1.06 Georgia,Times New Roman,serif}.headword-name small{color:var(--ink-soft);font:800 .72rem/1 var(--sans);letter-spacing:.08em;text-transform:uppercase}.headword-meaning,.headword-meaning-zh{display:block;color:var(--ink-soft);line-height:1.4}.headword-meaning-zh{margin-top:4px;font-size:.88rem}.headword-progress-track{height:7px;margin-top:auto;overflow:hidden;border-radius:999px;background:#e4e1d8}.headword-progress-track span{height:100%;display:block;border-radius:inherit;background:var(--teal)}.headword-empty-state{padding:64px 24px;border:1px dashed var(--line);border-radius:28px;background:#fffdf8b8;text-align:center}.headword-empty-state h2{margin-bottom:10px}.headword-selection-bar{position:fixed;z-index:20;right:50%;bottom:20px;width:min(calc(100% - 40px),760px);display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 18px 16px 24px;border:1px solid rgba(22,140,137,.35);border-radius:24px;background:#fffdf8f5;box-shadow:0 18px 55px #1631492e;transform:translate(50%);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.headword-selection-bar strong,.headword-selection-bar span{display:block}.headword-start-button{flex:0 0 auto}.lesson-runner-progress{position:sticky;z-index:14;top:112px;display:grid;grid-template-columns:minmax(190px,auto) minmax(150px,1fr);align-items:center;gap:28px;width:min(100% - 64px,920px);margin:0 auto -18px;padding:13px 20px;border:1px solid rgba(22,49,73,.12);border-radius:0 0 20px 20px;background:#f8f1e6f2;box-shadow:0 12px 26px #16314914;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.lesson-runner-progress-copy{display:flex;align-items:baseline;gap:10px;min-width:0}.lesson-runner-progress-copy span{color:var(--teal-dark);font-size:.68rem;font-weight:900;letter-spacing:.13em}.lesson-runner-progress-copy strong{font-size:.9rem}.lesson-runner-progress-copy small{margin-left:auto;color:var(--ink-soft);white-space:nowrap}.lesson-runner-progress-track{height:10px;overflow:hidden;border-radius:999px;background:#dfd8ca}.lesson-runner-progress-track span{height:100%;display:block;border-radius:inherit;background:linear-gradient(90deg,var(--teal),#31aaa5);transition:width .22s ease}.lesson-complete-page{display:grid;justify-items:center;max-width:700px;min-height:60vh;align-content:center;text-align:center}.lesson-complete-page h1{font-size:clamp(3rem,8vw,5rem)}.app-state-page{display:grid;justify-items:center;min-height:62vh;align-content:center;text-align:center}.app-state-page h1{margin:12px 0 16px;font-size:clamp(2.7rem,7vw,4.8rem)}.app-state-spinner{width:58px;height:58px;margin-bottom:28px;border:6px solid rgba(22,140,137,.16);border-top-color:var(--teal);border-radius:50%;animation:app-spin .85s linear infinite}.app-state-icon{width:76px;height:76px;display:grid;place-items:center;margin-bottom:24px;border-radius:50%;background:#ffebe7;color:var(--coral);font-size:2rem;font-weight:900}.app-state-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:26px}@keyframes app-spin{to{transform:rotate(360deg)}}.result-page{display:grid;justify-items:center;max-width:820px}.result-page .hero{margin-bottom:48px}.result-page h1{font-size:clamp(3rem,8vw,5.5rem)}.score-ring{width:min(300px,72vw);aspect-ratio:1;display:grid;place-items:center;margin-bottom:40px;border:28px solid var(--green);border-radius:50%;background:var(--ivory);box-shadow:0 18px 45px #08a96b2b}.score-ring span{font:500 clamp(3.7rem,13vw,6.5rem)/1 Georgia,"Times New 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p{margin-bottom:0;color:#3b6557}.passport-card-earned{background:#e1f4ec}.passport-card-review{background:#fff0ed}.passport-card-review p{color:#8b5148}.passport-emoji{font-size:2.5rem}.results-hero{margin-bottom:34px!important}.results-headword{width:max-content;max-width:100%;margin:20px auto 0;padding:8px 15px;border:1px solid rgba(22,140,137,.24);border-radius:999px;background:#e8f5f1;color:var(--teal-dark);font-weight:900}.results-benchmarks{width:100%;margin-top:42px}.results-section-heading{margin-bottom:16px}.benchmark-list{overflow:hidden;border:1px solid var(--line);border-radius:24px;background:var(--paper)}.benchmark-row{min-height:74px;display:grid;grid-template-columns:38px minmax(0,1fr) auto;align-items:center;gap:15px;padding:14px 22px;border-bottom:1px solid var(--line)}.benchmark-row:last-child{border-bottom:0}.benchmark-row strong,.benchmark-row span{display:block}.benchmark-row 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