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10px;text-align:center;font-size:11px;color:var(--muted);line-height:1.6}.admin-row{padding:12px;border:1px solid var(--line);border-radius:12px;margin-bottom:8px;font-size:13px}.admin-row .name{font-weight:800}.admin-row .meta{color:var(--muted);font-size:11px;margin-top:2px}.pass{color:var(--green-dark);font-weight:900}.fail{color:var(--red-dark);font-weight:900}.loading-bar{height:4px;border-radius:999px;background:linear-gradient(90deg,#e9efe6,#cdeeae,#e9efe6);background-size:200% 100%;animation:shimmer 1.1s linear infinite}@keyframes shimmer{to{background-position:-200% 0}}.term-link{display:inline;padding:0 1px;border-bottom:1px dashed var(--green-dark);color:var(--green-dark);font-weight:800;text-align:left;line-height:inherit}.term-link:active{background:var(--green-soft)}.speak-btn{margin-left:8px;padding:3px 8px;border-radius:999px;border:1.5px solid var(--line);font-size:11px;font-weight:800;color:var(--ink-soft);vertical-align:middle}.speak-btn:active{background:var(--surface)}.sheet-backdrop{position:fixed;inset:0;z-index:60;display:flex;align-items:flex-end;justify-content:center}.sheet-scrim{position:absolute;inset:0;background:#141c126b;border:none}.sheet{position:relative;width:100%;max-width:430px;max-height:82dvh;display:flex;flex-direction:column;background:var(--white);border-radius:22px 22px 0 0;padding:16px var(--pad) calc(18px + env(safe-area-inset-bottom));box-shadow:0 -12px 40px #1828142e;animation:sheet-in var(--motion-base) var(--ease-pop)}@keyframes sheet-in{0%{transform:translateY(24px);opacity:0}to{transform:translateY(0);opacity:1}}.sheet-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:10px}.sheet-title{font-size:15px;font-weight:900}.sheet-search{width:100%;height:46px;border-radius:12px;border:2px solid var(--line);padding:0 12px;font-size:16px;background:var(--surface)}.glossary-list{margin-top:10px;overflow-y:auto;display:flex;flex-direction:column;gap:6px;padding-bottom:8px}.glossary-row{display:flex;flex-direction:column;align-items:flex-start;gap:2px;min-height:52px;padding:9px 12px;border-radius:12px;border:1.5px solid var(--line);background:var(--white);text-align:left}.glossary-row:active{background:var(--green-soft)}.glossary-row-en{font-size:14px;font-weight:800}.glossary-row-zh{font-size:12px;color:var(--muted)}.glossary-card{padding:6px 2px 0;overflow-y:auto}.glossary-en{font-size:20px;font-weight:900;letter-spacing:-.01em}.glossary-zh{margin-top:4px;font-size:15px;font-weight:800;color:var(--green-dark)}.glossary-def{margin-top:10px;font-size:13px;line-height:1.6;color:var(--ink-soft)}.glossary-formula{margin-top:10px;padding:10px 12px;border-radius:12px;background:var(--surface);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;color:var(--ink)}.vocab-progress{height:8px;border-radius:999px;background:var(--line);overflow:hidden;margin-top:14px}.vocab-progress .lesson-progress-fill{height:100%;border-radius:999px;background:var(--green);transition:width var(--motion-base) ease}.flashcard{margin-top:16px;min-height:250px;border-radius:20px;border:2px solid var(--line);background:var(--white);padding:20px;display:flex;flex-direction:column;justify-content:center;text-align:center;box-shadow:0 8px #0000000a}.flashcard-tag{display:inline-flex;align-items:center;justify-content:center;gap:6px;font-size:11px;font-weight:900;letter-spacing:.06em;color:var(--green-dark);text-transform:uppercase}.flashcard-front{margin-top:14px;font-size:26px;font-weight:900;letter-spacing:-.02em;line-height:1.3}.flashcard-back{margin-top:16px;border-top:1px dashed var(--line);padding-top:14px}.flashcard-answer{font-size:20px;font-weight:900;color:var(--green-dark)}.streak-days{margin-top:10px;display:grid;grid-template-columns:repeat(7,1fr);gap:6px}.streak-day{display:flex;flex-direction:column;align-items:center;gap:4px}.streak-dot{width:34px;height:34px;border-radius:50%;border:2px solid var(--line);display:grid;place-items:center;color:var(--green-dark);background:var(--white)}.streak-day.on .streak-dot{border-color:var(--green);background:var(--green-soft)}.badge-grid{margin-top:10px;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.badge{min-height:64px;border-radius:14px;border:2px dashed var(--line);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;font-size:12px;font-weight:800;color:var(--muted)}.badge.earned{border-style:solid;border-color:#cdeeae;background:var(--green-soft);color:var(--green-dark)}.list-row{display:flex;align-items:center;gap:12px;width:100%;min-height:60px;padding:10px 12px;border-radius:14px;border:2px solid var(--line);background:var(--white);text-align:left}.list-row:active{background:var(--surface)}.list-row .grow{display:flex;flex-direction:column;gap:2px}.locked-card{border-color:var(--line);background:var(--surface)}.review-node{display:flex;align-items:center;gap:12px;width:100%;margin-top:10px;padding:12px;border-radius:16px;border:2px dashed var(--blue);background:var(--blue-soft);text-align:left}.review-icon{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--white);color:var(--blue-dark);flex:none}.review-node .node-title{color:var(--blue-dark)}.ok-box{margin-top:12px;padding:10px 12px;border-radius:12px;background:var(--green-soft);color:var(--green-dark);font-size:13px;font-weight:700}.filter-row{display:flex;gap:8px;margin-top:14px}.filter-input{flex:1;min-width:0;height:44px;border-radius:12px;border:2px solid var(--line);background:var(--surface);padding:0 10px;font-size:16px}.dist-grid{margin-top:10px;display:grid;grid-template-columns:repeat(6,1fr);gap:6px}.dist-cell{border-radius:12px;border:2px solid var(--line);padding:8px 4px;text-align:center}.dist-value{font-size:16px;font-weight:900}.confirm-backdrop{position:fixed;inset:0;z-index:70;display:flex;align-items:center;justify-content:center;padding:24px}.confirm-scrim{position:absolute;inset:0;border:none;background:#141c1273}.confirm-card{position:relative;width:100%;max-width:360px;background:var(--white);border-radius:20px;padding:22px;box-shadow:0 20px 60px #1428103d;animation:sheet-in var(--motion-fast) var(--ease-pop)}.confirm-card h2{font-size:19px}.term-link{padding:3px 1px;margin:-3px 0}.speak-btn{min-height:34px;padding:5px 10px;font-size:12px}.sheet-search{min-height:48px;height:auto;padding:12px}.chapter-title-en{display:inline;font-weight:600}.vocab-body{display:flex;flex-direction:column}.vocab-body .flashcard{flex:1}.filter-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:12px}.filter-actions .btn{flex:none}@media(max-width:380px){.chapter-title-en{display:block;margin-top:2px}}.confetti{position:fixed;inset:0;z-index:40;pointer-events:none;overflow:hidden}.confetti span{position:absolute;top:-18px;width:9px;height:14px;border-radius:2px;animation-name:confetti-fall;animation-timing-function:cubic-bezier(.3,.7,.4,1);animation-fill-mode:forwards}@keyframes confetti-fall{0%{transform:translateY(-20px) rotate(0);opacity:1}to{transform:translateY(92dvh) rotate(540deg);opacity:.9}}.recap-list{margin-top:10px;display:flex;flex-direction:column;gap:8px}.recap-card{border-radius:14px;border:2px solid var(--line);background:var(--white);padding:12px}.recap-q{font-size:13px;font-weight:800}.recap-a{margin-top:6px;font-size:12px;line-height:1.55;color:var(--ink-soft)}.recap-a .en{display:block;margin-top:2px;color:var(--muted)}.switch{flex:none;width:44px;height:26px;border-radius:999px;background:var(--line);position:relative;transition:background var(--motion-fast) ease}.switch:after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:var(--white);box-shadow:0 1px 3px #0000002e;transition:transform var(--motion-fast) ease}.switch.on{background:var(--green)}.switch.on:after{transform:translate(18px)}:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:6px}.lesson-title:focus{outline:none}@media print{body{background:#fff}.screen,.app-frame{padding:0;max-width:none;box-shadow:none}.scroll-body{overflow:visible;padding:0}.btn,.footer-note,.bottom-nav{display:none!important}.certificate{border:2px solid #cdeeae;margin:24px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;transition-duration:.001ms!important}}