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12px;border-radius:10px;color:var(--text);text-decoration:none;font-size:.92rem;font-weight:600;transition:background .15s ease,color .15s ease}.nav-sublink[data-astro-cid-3ef6ksr2]:hover,.nav-sublink[data-astro-cid-3ef6ksr2].is-active{background:var(--primary-light);color:var(--primary)}.mobile-nav-header[data-astro-cid-3ef6ksr2],.nav-close[data-astro-cid-3ef6ksr2],.nav-overlay[data-astro-cid-3ef6ksr2]{display:none}@media(max-width:767px){.logo-image[data-astro-cid-3ef6ksr2]{height:50px}.header-search-text[data-astro-cid-3ef6ksr2]{display:none}.nav-overlay[data-astro-cid-3ef6ksr2]{display:block;position:fixed;inset:0;background:#0f172a59;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility .2s ease;z-index:90}.nav-overlay[data-astro-cid-3ef6ksr2].is-open{opacity:1;visibility:visible;pointer-events:auto}.global-nav[data-astro-cid-3ef6ksr2]{position:fixed;top:0;right:0;width:min(76vw,290px);height:100dvh;padding:20px 16px 28px;box-sizing:border-box;background:#fff;box-shadow:-12px 0 30px #0f172a1f;z-index:100;overflow-y:auto;display:flex;flex-direction:column;gap:6px;transform:translate(100%);opacity:0;visibility:hidden;pointer-events:none;transition:transform .22s ease,opacity .22s ease,visibility .22s ease}.global-nav[data-astro-cid-3ef6ksr2].is-open{transform:translate(0);opacity:1;visibility:visible;pointer-events:auto}.mobile-nav-header[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;margin-bottom:10px;border-bottom:1px solid var(--line)}.mobile-nav-title[data-astro-cid-3ef6ksr2]{margin:0;font-size:1rem;font-weight:800;color:var(--text)}.nav-close[data-astro-cid-3ef6ksr2]{display:inline-flex;position:relative;width:36px;height:36px;border:1px solid var(--line);border-radius:999px;background:#fff;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0}.nav-close[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]{position:absolute;width:16px;height:2px;background:var(--text);border-radius:999px}.nav-close[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]:nth-child(1){transform:rotate(45deg)}.nav-close[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]:nth-child(2){transform:rotate(-45deg)}.nav-item--has-children[data-astro-cid-3ef6ksr2]:after{display:none}.nav-link[data-astro-cid-3ef6ksr2]{display:block;padding:12px 4px;border-bottom:1px solid rgba(148,163,184,.18);font-size:.98rem;font-weight:700}.nav-parent-row[data-astro-cid-3ef6ksr2]{align-items:stretch;border-bottom:1px solid rgba(148,163,184,.18)}.nav-parent-row[data-astro-cid-3ef6ksr2] .nav-link[data-astro-cid-3ef6ksr2]{border-bottom:none}.nav-accordion-toggle[data-astro-cid-3ef6ksr2]{display:inline-flex;position:relative;width:44px;min-width:44px;border:none;background:transparent;align-items:center;justify-content:center;cursor:pointer}.nav-accordion-toggle[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]{position:relative;width:14px;height:14px;display:block}.nav-accordion-toggle[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]:before,.nav-accordion-toggle[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]:after{content:"";position:absolute;top:6px;left:0;width:14px;height:2px;background:var(--text);border-radius:999px;transition:transform .18s ease,opacity .18s ease}.nav-accordion-toggle[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]:after{transform:rotate(90deg)}.nav-item--has-children[data-astro-cid-3ef6ksr2][data-accordion=open] .nav-accordion-toggle[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]:after{opacity:0;transform:rotate(90deg) scaleX(0)}.nav-submenu[data-astro-cid-3ef6ksr2]{position:static;min-width:auto;margin-top:0;margin-bottom:8px;padding:0 0 0 10px;border:none;border-left:2px solid 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28px}.footer-brand[data-astro-cid-sz7xmlte]{display:flex;flex-direction:column;gap:14px}.footer-logo-link[data-astro-cid-sz7xmlte]{display:inline-flex;align-items:center;width:fit-content;text-decoration:none}.footer-logo-image[data-astro-cid-sz7xmlte]{display:block;max-width:88px;width:100%;height:auto}.footer-text[data-astro-cid-sz7xmlte]{margin:0;font-size:14px;line-height:1.9;color:#4b5568}.footer-links[data-astro-cid-sz7xmlte]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.footer-col[data-astro-cid-sz7xmlte]{min-width:0}.footer-heading[data-astro-cid-sz7xmlte]{margin:0 0 14px;font-size:15px;font-weight:700;line-height:1.5;color:#0f172a}.footer-nav[data-astro-cid-sz7xmlte]{display:grid;gap:10px}.footer-nav[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{display:inline-block;width:fit-content;color:#24324a;text-decoration:none;font-size:14px;line-height:1.8;transition:opacity .2s ease}.footer-nav[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{opacity:.7;text-decoration:underline;text-underline-offset:3px}.footer-bottom[data-astro-cid-sz7xmlte]{padding:18px 20px 28px;border-top:1px solid #e7dfd4}.footer-bottom[data-astro-cid-sz7xmlte] p[data-astro-cid-sz7xmlte]{margin:0;font-size:13px;color:#6b7280}@media(max-width:767px){.site-footer[data-astro-cid-sz7xmlte]{margin-top:56px}.footer-wrap[data-astro-cid-sz7xmlte]{grid-template-columns:1fr;gap:24px;padding:28px 16px 20px}.footer-brand[data-astro-cid-sz7xmlte]{gap:12px;padding-bottom:4px}.footer-logo-image[data-astro-cid-sz7xmlte]{max-width:64px}.footer-text[data-astro-cid-sz7xmlte]{font-size:13px;line-height:1.85}.footer-links[data-astro-cid-sz7xmlte]{grid-template-columns:1fr 1fr;gap:16px;align-items:start}.footer-col[data-astro-cid-sz7xmlte]{background:#fff;border:1px solid #ebe5dc;border-radius:12px;padding:14px 12px}.footer-heading[data-astro-cid-sz7xmlte]{margin-bottom:10px;font-size:14px}.footer-nav[data-astro-cid-sz7xmlte]{gap:8px}.footer-nav[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{width:100%;font-size:13px;line-height:1.7;word-break:break-word}.footer-bottom[data-astro-cid-sz7xmlte]{padding:16px 16px 24px}.footer-bottom[data-astro-cid-sz7xmlte] p[data-astro-cid-sz7xmlte]{font-size:12px}}@media(max-width:420px){.footer-links[data-astro-cid-sz7xmlte]{grid-template-columns:1fr}}.app-update-notice[data-astro-cid-mokyvx6q]{position:fixed;left:16px;right:16px;bottom:16px;z-index:120}.app-update-notice__inner[data-astro-cid-mokyvx6q]{max-width:860px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 16px;border:1px solid rgba(15,118,110,.16);border-radius:18px;background:#fffffff5;box-shadow:0 16px 34px #0f172a1f;backdrop-filter:blur(10px)}.app-update-notice__text[data-astro-cid-mokyvx6q]{margin:0;color:#0f172a;font-size:.95rem;line-height:1.7;font-weight:700}.app-update-notice__actions[data-astro-cid-mokyvx6q]{display:flex;align-items:center;gap:10px;flex-wrap:wrap;flex-shrink:0}.app-update-notice__btn[data-astro-cid-mokyvx6q]{padding:10px 16px;border-radius:999px;border:1px solid #d7dee7;background:#fff;color:#24324a;font:inherit;font-size:.9rem;font-weight:700;cursor:pointer;transition:background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease,transform .12s ease}.app-update-notice__btn[data-astro-cid-mokyvx6q]:hover{transform:translateY(-1px);box-shadow:0 10px 20px #0f172a14}.app-update-notice__btn[data-astro-cid-mokyvx6q].is-primary{background:linear-gradient(180deg,#17897f,#0f766e);border-color:#0f766e;color:#fff}@media(max-width:767px){.app-update-notice[data-astro-cid-mokyvx6q]{left:12px;right:12px;bottom:12px}.app-update-notice__inner[data-astro-cid-mokyvx6q]{padding:14px;border-radius:16px;align-items:flex-start;flex-direction:column}.app-update-notice__actions[data-astro-cid-mokyvx6q]{width:100%}.app-update-notice__btn[data-astro-cid-mokyvx6q]{flex:1 1 auto;justify-content:center}}.native-app-shell{display:none}html.is-native-app,body.is-native-app{background:#f7faf9}body.is-native-app .native-app-shell{display:block}body.is-native-app .web-only-shell{display:none!important}body.is-native-app main{min-height:100dvh;padding-top:calc(58px + env(safe-area-inset-top));padding-bottom:calc(82px + env(safe-area-inset-bottom))}.native-app-header{position:fixed;top:0;left:0;right:0;z-index:120;padding-top:env(safe-area-inset-top);background:#fffffff5;backdrop-filter:blur(14px);border-bottom:1px solid rgba(15,118,110,.1);box-shadow:0 8px 20px #0f172a0a}.native-app-header__inner{min-height:58px;display:flex;align-items:center;padding:0 18px}.native-app-header__title-wrap{min-width:0}.native-app-header__brand{margin:0 0 1px;font-size:.7rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:#0f766e}.native-app-header__title{margin:0;font-size:1rem;font-weight:900;color:#0f172a;line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}body.is-native-app .native-app-header{transition:transform .24s ease,opacity .24s ease,box-shadow .24s ease;will-change:transform}body.is-native-app .native-app-header.is-hidden{transform:translateY(calc(-100% - env(safe-area-inset-top)));opacity:0;pointer-events:none;box-shadow:none}.native-bottom-nav{position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:120;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;padding:10px;border:1px solid rgba(15,118,110,.12);border-radius:24px;background:#fffffff5;backdrop-filter:blur(14px);box-shadow:0 14px 32px #0f172a1f}.native-bottom-nav__item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:56px;padding:8px 4px;border-radius:16px;color:#64748b;text-decoration:none;transition:background-color .18s ease,color .18s ease,transform .12s ease}.native-bottom-nav__item.is-active{background:linear-gradient(180deg,#eafaf6,#dff5ef);color:#0f766e}.native-bottom-nav__icon{font-size:1.05rem;line-height:1;font-weight:900}.native-bottom-nav__label{font-size:.72rem;font-weight:900;line-height:1.2}@media(max-width:380px){.native-app-header__inner{min-height:54px;padding:0 14px}body.is-native-app main{padding-top:calc(54px + env(safe-area-inset-top))}.native-bottom-nav{left:8px;right:8px;padding:8px;gap:6px;border-radius:20px}.native-bottom-nav__item{min-height:52px;padding:6px 2px}.native-bottom-nav__label{font-size:.68rem}}:root{--bg: #ffffff;--text: #1f2937;--muted: #6b7280;--line: #e5e7eb;--primary: #0f766e;--primary-light: #ecfdf5;--max: 1100px;--radius: 14px}*{box-sizing:border-box}html{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--text);background:var(--bg);-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;line-height:1.8;background:var(--bg);color:var(--text)}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.container{width:min(100% - 32px,var(--max));margin:0 auto}.site-header,.site-footer{background:#fff}.site-header{border-bottom:1px solid var(--line)}.site-footer{border-top:1px solid var(--line);margin-top:64px;padding:24px 0}.header-inner,.footer-nav,.global-nav,.hero-links{display:flex;gap:16px;align-items:center;flex-wrap:wrap}.header-inner{justify-content:space-between;padding:18px 0}.logo{font-weight:700;font-size:1.1rem}.hero{padding:72px 0 40px}.eyebrow{color:var(--primary);font-weight:700}h1{font-size:clamp(2rem,5vw,3.25rem);line-height:1.2;margin:0 0 16px}h2{font-size:1.6rem;line-height:1.45;margin:0 0 16px}h3{line-height:1.5}p{line-height:1.8}.lead{font-size:1.1rem;color:var(--muted);max-width:720px}.section{padding:48px 0}.section-soft{background:#f8fafc}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.card{display:block;padding:20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.button,.button-sub,.category-link,.text-link{min-height:44px}.button{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:999px;background:var(--primary);color:#fff;font-weight:700;line-height:1.4}.button-sub{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:999px;background:var(--primary-light);color:var(--primary);font-weight:700;line-height:1.4}.list-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}.word-card{padding:20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.word-main{margin:0 0 10px;font-size:clamp(2rem,4vw,2.6rem);font-weight:700;line-height:1.25;color:#111827}.word-pinyin{margin:0 0 12px;color:var(--primary);font-weight:700;font-size:1.08rem;line-height:1.6}.word-meaning{margin:0 0 14px;color:var(--text);font-size:1rem;font-weight:500;line-height:1.8}.word-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.badge{display:inline-block;padding:5px 10px;border-radius:999px;background:var(--primary-light);color:var(--primary);font-size:.82rem;font-weight:700}.example-box{margin-top:16px;padding:16px;border-top:1px solid var(--line);background:#f8fafc;border-radius:14px}.example-cn{margin:0 0 8px;font-size:1rem;line-height:1.7;color:#111827}.example-ja{margin:0;color:var(--muted);font-size:.95rem;line-height:1.7}.info-box{margin-top:24px;padding:20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.info-box-title{margin:0 0 10px;font-weight:700;color:var(--primary)}.content-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}.content-card{padding:20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.tone-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-top:24px}.tone-card{padding:20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.tone-number{margin:0 0 8px;font-weight:700;color:var(--primary)}.tone-shape{margin:0 0 10px;font-weight:600}.tone-example{margin:0;font-size:1.5rem;font-weight:700}.step-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}.step-card{padding:20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.step-number{margin:0 0 8px;color:var(--primary);font-weight:700}.step-card h3{margin:0 0 10px;font-size:1.1rem}.step-card p{margin:0}.policy-block{padding:20px 0;border-top:1px solid var(--line)}.policy-block:first-of-type{border-top:0}.policy-block h2{margin-bottom:10px;font-size:1.2rem}.policy-block p{margin:0}.category-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.category-link{display:inline-flex;align-items:center;padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;font-weight:700;line-height:1.4}.section-group{padding-top:16px}.section-heading-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}.section-count{margin:0;color:var(--muted);font-weight:700}.footer-wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;padding:32px 0 20px}.footer-logo{margin:0 0 10px;font-size:1.1rem;font-weight:700}.footer-text{margin:0;color:var(--muted);max-width:540px;line-height:1.9}.footer-links{display:grid;grid-template-columns:repeat(2,minmax(160px,1fr));gap:24px}.footer-col{display:flex;flex-direction:column;gap:10px}.footer-heading{margin:0 0 4px;font-weight:700}.footer-bottom{padding:16px 0 28px;border-top:1px solid var(--line)}.footer-bottom p{margin:0;color:var(--muted)}.highlight-panel{display:grid;grid-template-columns:1.5fr auto;gap:24px;align-items:center;padding:24px;border:1px solid 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.result-tabs::-webkit-scrollbar{display:none}body.is-native-app[data-native-route=search] .result-tab{flex:0 0 auto;min-height:40px;margin:0;padding:9px 14px;border:1px solid rgba(15,118,110,.12);border-radius:999px;background:#fff;color:#64748b}body.is-native-app[data-native-route=search] .result-tab.is-active{background:#0f766e;border-color:#0f766e;color:#fff}body.is-native-app[data-native-route=search] .result-tab.is-active .tab-count{background:#ffffff2e;color:#fff}body.is-native-app[data-native-route=search] #result-list{display:grid;grid-template-columns:1fr;gap:14px}body.is-native-app[data-native-route=search] .result-card{padding:18px;border-radius:24px;border:1px solid rgba(15,118,110,.1);box-shadow:0 12px 28px #0f172a0f}body.is-native-app[data-native-route=search] .card-header{margin-bottom:4px}body.is-native-app[data-native-route=search] .card-word{font-size:1.7rem;line-height:1.25}body.is-native-app[data-native-route=search] .card-pinyin{font-size:.95rem}body.is-native-app[data-native-route=search] .card-meaning{font-size:.98rem;line-height:1.7}body.is-native-app[data-native-route=search] .card-links{display:grid;grid-template-columns:1fr;gap:8px;border-top:1px solid #e2e8f0;padding-top:12px}body.is-native-app[data-native-route=search] .card-link{display:flex;align-items:center;justify-content:space-between;min-height:44px;padding:0 14px;border-radius:999px;background:#f8fafc;color:#0f766e;font-size:.9rem;text-decoration:none}body.is-native-app[data-native-route=search] .card-link:after{content:"→";font-weight:900}body.is-native-app[data-native-route=search] .no-result-box{border-radius:24px;background:#fff;border:1px dashed rgba(15,118,110,.22)}body.is-native-app[data-native-route=search] section:has(.category-grid){display:none}body.is-native-app[data-native-route=search] .card-header{align-items:flex-start}body.is-native-app[data-native-route=search] .card-header-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap}body.is-native-app[data-native-route=search] .card-memorized-btn{display:inline-flex;align-items:center;justify-content:center;min-height:34px;padding:0 11px;border:1px solid rgba(15,118,110,.18);border-radius:999px;background:#fff;color:#0f766e;font:inherit;font-size:.76rem;font-weight:900}body.is-native-app[data-native-route=search] .card-memorized-btn.is-memorized{background:#0f766e;border-color:#0f766e;color:#fff}body.is-native-app[data-native-route=search] .result-card.is-memorized-card{border-color:#0f766e3d;background:linear-gradient(180deg,#eafaf68c,#fffffffa),#fff}body.is-native-app[data-native-route=search] .result-card.is-memorized-card .card-word{color:#0f766e}body.is-native-app[data-native-route=search] .result-card.is-memorized-card .card-type-badge{background:#d9fbe8;color:#0f766e}@media(max-width:380px){body.is-native-app[data-native-route=search] .card-header-actions{width:100%;justify-content:flex-start}body.is-native-app[data-native-route=search] .card-audio-btn,body.is-native-app[data-native-route=search] .card-memorized-btn{min-height:32px;padding-left:10px;padding-right:10px;font-size:.74rem}}body.is-native-app[data-native-route=quiz] main{padding-top:calc(64px + env(safe-area-inset-top))}body.is-native-app[data-native-route=quiz] main>.section:first-of-type{display:none}body.is-native-app[data-native-route=quiz] .quiz-feature-grid,body.is-native-app[data-native-route=quiz] .quiz-tips-box,body.is-native-app[data-native-route=quiz] .page-guide{display:none}body.is-native-app[data-native-route=quiz] #quiz-setup{padding:8px 16px 16px}body.is-native-app[data-native-route=quiz] #quiz-setup .container{padding:18px;border-radius:28px;background:#fff;border:1px solid rgba(15,118,110,.1);box-shadow:0 14px 32px #0f172a12}body.is-native-app[data-native-route=quiz] #quiz-setup h2{margin:0 0 16px;font-size:1.22rem}body.is-native-app[data-native-route=quiz] .setup-grid{gap:22px;margin-bottom:24px}body.is-native-app[data-native-route=quiz] .setup-block{padding:0;border:none;border-radius:0;box-shadow:none;background:transparent}body.is-native-app[data-native-route=quiz] .setup-label-row{gap:10px}body.is-native-app[data-native-route=quiz] .setup-label{font-size:.95rem;font-weight:900;color:#0f172a}body.is-native-app[data-native-route=quiz] .setup-label-sub{display:block;margin-top:3px;font-size:.75rem;line-height:1.5}body.is-native-app[data-native-route=quiz] .setup-btns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}body.is-native-app[data-native-route=quiz] #source-btns{grid-template-columns:1fr}body.is-native-app[data-native-route=quiz] #learning-status-btns,body.is-native-app[data-native-route=quiz] #mode-btns,body.is-native-app[data-native-route=quiz] #format-btns,body.is-native-app[data-native-route=quiz] #count-btns{grid-template-columns:repeat(2,minmax(0,1fr))}body.is-native-app[data-native-route=quiz] .setup-btn{width:100%;min-height:48px;padding:10px 12px;border-radius:16px;border-color:#0f766e1f;background:#f8fafc;color:#334155;font-size:.9rem;font-weight:900;box-shadow:none}body.is-native-app[data-native-route=quiz] .setup-btn.is-active{background:linear-gradient(135deg,#0f766e,#2f7d4a);border-color:transparent;color:#fff;box-shadow:0 12px 24px #0f766e2e}body.is-native-app[data-native-route=quiz] .quiz-learning-status-note{margin:10px 0 0;padding:9px 11px;border-radius:14px;background:#f8fafc;border:1px solid rgba(15,118,110,.1);color:#64748b;font-size:.82rem;line-height:1.6;font-weight:700}body.is-native-app[data-native-route=quiz] .category-tools{width:100%;display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}body.is-native-app[data-native-route=quiz] .category-tool-btn{min-height:40px;border-radius:999px;background:#fff;font-size:.82rem}body.is-native-app[data-native-route=quiz] .category-selected-note{padding:8px 10px;border-radius:14px;background:#eafaf6;font-size:.84rem}body.is-native-app[data-native-route=quiz] #category-btns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}body.is-native-app[data-native-route=quiz] .setup-btn--category{min-height:50px;border-radius:16px;font-size:.86rem}body.is-native-app[data-native-route=quiz] .setup-start{position:sticky;bottom:calc(92px + env(safe-area-inset-bottom));z-index:20;padding:12px;margin:4px -8px -6px;border-radius:22px;background:#fffffff0;backdrop-filter:blur(12px);box-shadow:0 12px 30px #0f172a1a}body.is-native-app[data-native-route=quiz] .setup-start .button{width:100%;min-height:52px;font-size:1rem}body.is-native-app[data-native-route=quiz] .setup-status{text-align:center;font-size:.84rem}body.is-native-app[data-native-route=quiz] #quiz-screen{padding:8px 16px 16px}body.is-native-app[data-native-route=quiz] .quiz-container{max-width:100%}body.is-native-app[data-native-route=quiz] .quiz-header{position:sticky;top:calc(60px + env(safe-area-inset-top));z-index:50;margin:0 0 14px;padding:12px;border-radius:22px;background:#fffffff0;backdrop-filter:blur(12px);box-shadow:0 10px 26px #0f172a14}body.is-native-app[data-native-route=quiz] .quiz-progress-text{font-size:.86rem}body.is-native-app[data-native-route=quiz] .quiz-score{font-size:.9rem}body.is-native-app[data-native-route=quiz] .quiz-quit-btn{min-height:38px;padding:7px 14px}body.is-native-app[data-native-route=quiz] .quiz-tools{padding:14px;border-radius:22px;background:#fff;border:1px solid rgba(15,118,110,.1);box-shadow:0 10px 24px #0f172a0d}body.is-native-app[data-native-route=quiz] .quiz-toggles{gap:10px}body.is-native-app[data-native-route=quiz] .quiz-toggle__label{font-size:.88rem}body.is-native-app[data-native-route=quiz] .quiz-audio-btn{width:100%;min-height:44px;border-radius:999px}body.is-native-app[data-native-route=quiz] .quiz-card{min-height:172px;padding:30px 20px;border-radius:28px;background:#fff;border:1px solid rgba(15,118,110,.1);box-shadow:0 14px 32px #0f172a12}body.is-native-app[data-native-route=quiz] .quiz-mode-label{font-size:.82rem}body.is-native-app[data-native-route=quiz] .quiz-question{font-size:clamp(2rem,9vw,2.8rem)}body.is-native-app[data-native-route=quiz] .quiz-question-sub{font-size:.96rem}body.is-native-app[data-native-route=quiz] .choice-grid{gap:12px}body.is-native-app[data-native-route=quiz] .choice-btn{min-height:74px;padding:15px 16px;border-radius:20px;background:#fff;border:1px solid rgba(15,118,110,.1);box-shadow:0 8px 22px #0f172a0d}body.is-native-app[data-native-route=quiz] .choice-btn__key{border-radius:14px}body.is-native-app[data-native-route=quiz] .choice-btn__text{font-size:.98rem}body.is-native-app[data-native-route=quiz] .choice-hint{font-size:.82rem}body.is-native-app[data-native-route=quiz] .self-answer-box,body.is-native-app[data-native-route=quiz] .self-result-box{border-radius:24px;background:#fff;box-shadow:0 12px 28px #0f172a0f}body.is-native-app[data-native-route=quiz] #result-screen{padding:8px 16px 16px}body.is-native-app[data-native-route=quiz] #result-screen .result-card{padding:34px 20px;border-radius:28px}body.is-native-app[data-native-route=quiz] .result-scope{margin:8px 0 24px;color:#64748b;font-size:.88rem;font-weight:800}body.is-native-app[data-native-route=quiz] .result-actions{display:grid;grid-template-columns:1fr}body.is-native-app[data-native-route=quiz] .result-actions .button{width:100%}body.is-native-app[data-native-route=quiz] .review-list,body.is-native-app[data-native-route=quiz] .weakness-grid,body.is-native-app[data-native-route=quiz] .result-next-actions__grid{grid-template-columns:1fr}body.is-native-app[data-native-route=quiz] .result-next-card,body.is-native-app[data-native-route=quiz] .weakness-card,body.is-native-app[data-native-route=quiz] .review-item{border-radius:20px}body.is-native-app[data-native-route=quiz] #quiz-screen{padding:4px 12px 8px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-container{min-height:calc(100dvh - 136px - env(safe-area-inset-top) - env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:8px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-header{position:static;flex:0 0 auto;display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:8px;margin:0;padding:8px 10px;border-radius:18px;box-shadow:0 8px 18px #0f172a0f}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-header-left{min-width:0;gap:5px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-progress-text{font-size:.78rem;line-height:1.2}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-progress-bar{height:6px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-score{font-size:.78rem;white-space:nowrap}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-quit-btn{min-height:32px;padding:5px 10px;font-size:.78rem}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-tools{flex:0 0 auto;display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px;margin:0;padding:8px 10px;border-radius:18px;box-shadow:0 8px 18px #0f172a0a}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-toggles{gap:6px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-toggle{gap:8px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-toggle__ui{width:38px;height:22px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-toggle__ui:after{width:16px;height:16px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-toggle input:checked+.quiz-toggle__ui:after{transform:translate(16px)}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-toggle__label{font-size:.76rem;line-height:1.25}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-audio-btn{width:auto;min-height:36px;padding:0 11px;font-size:.78rem;white-space:nowrap}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-card{flex:0 0 auto;min-height:116px;margin:0;padding:18px 14px;border-radius:22px;gap:6px;box-shadow:0 10px 22px #0f172a0f}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-mode-label{font-size:.74rem;line-height:1.2}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-question{font-size:clamp(1.55rem,7vw,2.15rem);line-height:1.2}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-question-sub{min-height:auto;font-size:.82rem;line-height:1.35}body.is-native-app[data-native-route=quiz] #format-4choice{flex:1 1 auto;min-height:0;display:flex;flex-direction:column}body.is-native-app[data-native-route=quiz] #quiz-screen .choice-grid{flex:1 1 auto;display:grid;grid-template-columns:1fr;gap:8px;margin:0}body.is-native-app[data-native-route=quiz] #quiz-screen .choice-btn{min-height:54px;padding:9px 12px;border-radius:16px;grid-template-columns:34px 1fr;gap:10px}body.is-native-app[data-native-route=quiz] #quiz-screen .choice-btn__key{width:30px;height:30px;border-radius:11px;font-size:.78rem}body.is-native-app[data-native-route=quiz] #quiz-screen .choice-btn__text{font-size:.9rem;line-height:1.38}body.is-native-app[data-native-route=quiz] #quiz-screen .choice-hint{display:none}body.is-native-app[data-native-route=quiz] #format-self{flex:1 1 auto;min-height:0}body.is-native-app[data-native-route=quiz] #quiz-screen .self-answer-box,body.is-native-app[data-native-route=quiz] #quiz-screen .self-result-box{padding:18px 14px;border-radius:20px}body.is-native-app[data-native-route=quiz] #quiz-screen .self-answer-label{margin-bottom:14px;font-size:.86rem}body.is-native-app[data-native-route=quiz] #quiz-screen .self-answer-text{font-size:clamp(1.45rem,7vw,2rem)}body.is-native-app[data-native-route=quiz] #quiz-screen .self-answer-sub{margin-bottom:14px;font-size:.86rem}body.is-native-app[data-native-route=quiz] #quiz-screen .self-judge-btns{gap:10px}body.is-native-app[data-native-route=quiz] #quiz-screen .self-judge-btn{flex:1 1 auto;min-height:44px;padding:10px 12px;font-size:.9rem}body.is-native-app[data-native-route=quiz].is-native-quiz-playing .native-app-header{transform:translateY(calc(-100% - env(safe-area-inset-top)));opacity:0;pointer-events:none;box-shadow:none}body.is-native-app[data-native-route=quiz].is-native-quiz-playing main{padding-top:calc(6px + env(safe-area-inset-top))}body.is-native-app[data-native-route=quiz].is-native-quiz-playing .native-context-actions{display:none}body.is-native-app[data-native-route=quiz].is-native-quiz-playing #quiz-screen{padding-top:2px}body.is-native-app[data-native-route=quiz].is-native-quiz-playing #quiz-screen .quiz-container{min-height:calc(100dvh - 82px - env(safe-area-inset-top) - env(safe-area-inset-bottom))}@media(max-width:380px){body.is-native-app[data-native-route=quiz] .setup-btns,body.is-native-app[data-native-route=quiz] #mode-btns,body.is-native-app[data-native-route=quiz] #format-btns,body.is-native-app[data-native-route=quiz] #count-btns,body.is-native-app[data-native-route=quiz] #category-btns{gap:8px}body.is-native-app[data-native-route=quiz] .setup-btn{font-size:.84rem}body.is-native-app[data-native-route=quiz] #learning-status-btns{gap:7px}body.is-native-app[data-native-route=quiz] #learning-status-btns .setup-btn{font-size:.78rem;padding-left:6px;padding-right:6px}}@media(max-height:720px){body.is-native-app[data-native-route=quiz] #quiz-screen{padding-top:2px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-container{gap:6px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-tools{padding:7px 9px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-card{min-height:98px;padding:14px 12px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-question{font-size:clamp(1.35rem,6.4vw,1.9rem)}body.is-native-app[data-native-route=quiz] #quiz-screen .choice-btn{min-height:48px;padding:8px 10px}body.is-native-app[data-native-route=quiz] #quiz-screen .choice-btn__text{font-size:.84rem;line-height:1.32}}@media(max-height:650px){body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-tools{grid-template-columns:1fr}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-toggles{display:grid;grid-template-columns:1fr 1fr;gap:6px}body.is-native-app[data-native-route=quiz] #quiz-screen .quiz-audio-btn{width:100%;min-height:34px}}body.is-native-app[data-native-route=quiz] .result-next-actions{margin-top:22px}body.is-native-app[data-native-route=quiz] .result-next-actions__title{margin-bottom:12px;font-size:1rem}body.is-native-app[data-native-route=quiz] .result-next-card{position:relative;overflow:hidden}body.is-native-app[data-native-route=quiz] .result-next-card--primary{border-color:#0f766e3d;background:radial-gradient(circle at top left,rgba(15,118,110,.12),transparent 45%),#fff}body.is-native-app[data-native-route=quiz] .result-next-card--soft{background:radial-gradient(circle at top left,rgba(59,130,246,.1),transparent 42%),#fff}body.is-native-app[data-native-route=quiz] .result-next-card--button{width:100%;border:1px solid #dbe4ee;color:inherit}body.is-native-app[data-native-route=quiz] .result-next-card__label{display:inline-flex;width:fit-content;padding:3px 8px;border-radius:999px;background:#eafaf6;color:#0f766e;font-size:.72rem}body.is-native-app[data-native-route=quiz] .result-next-card__title{font-size:1rem}body.is-native-app[data-native-route=quiz] .result-next-card__text{font-size:.84rem;line-height:1.65}body.is-native-app[data-native-route=quiz] #learning-status-btns .setup-btn[data-value=weakness]{position:relative}body.is-native-app[data-native-route=quiz] #learning-status-btns .setup-btn[data-value=weakness].is-active{background:radial-gradient(circle at top left,rgba(255,255,255,.2),transparent 38%),linear-gradient(135deg,#0f766e,#256d4f);color:#fff}body.is-native-app[data-native-route=quiz] #learning-status-btns .setup-btn[data-value=weakness]:after{content:"復習";display:inline-flex;align-items:center;justify-content:center;margin-left:5px;padding:1px 6px;border-radius:999px;background:#0f766e1a;color:#0f766e;font-size:.64rem;font-weight:900;vertical-align:middle}body.is-native-app[data-native-route=quiz] #learning-status-btns .setup-btn[data-value=weakness].is-active:after{background:#fff3;color:#fff}body.is-native-app[data-native-route=vocabulary] main,body.is-native-app[data-native-route=phrases] main{padding-top:calc(64px + env(safe-area-inset-top))}body.is-native-app[data-native-route=vocabulary] main>.section:first-of-type,body.is-native-app[data-native-route=phrases] main>.section:first-of-type{padding-bottom:10px}body.is-native-app[data-native-route=vocabulary] main>.section:first-of-type .container,body.is-native-app[data-native-route=phrases] main>.section:first-of-type .container{padding:20px 18px;border-radius:28px}body.is-native-app[data-native-route=vocabulary] main>.section:first-of-type .lead,body.is-native-app[data-native-route=phrases] main>.section:first-of-type .lead{font-size:.92rem;line-height:1.7}body.is-native-app[data-native-route=vocabulary] .page-guide,body.is-native-app[data-native-route=phrases] .page-guide{display:none}body.is-native-app[data-native-route=vocabulary] .section-soft,body.is-native-app[data-native-route=phrases] .section-soft{background:transparent}body.is-native-app[data-native-route=vocabulary] .category-grid,body.is-native-app[data-native-route=phrases] .category-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}body.is-native-app[data-native-route=vocabulary] .category-card,body.is-native-app[data-native-route=phrases] .category-card{min-height:120px;padding:16px;border-radius:24px;background:#fff;border:1px solid rgba(15,118,110,.1);box-shadow:0 12px 26px #0f172a0f;display:flex;flex-direction:column;justify-content:space-between;text-decoration:none}body.is-native-app[data-native-route=vocabulary] .category-card:after,body.is-native-app[data-native-route=phrases] .category-card:after{content:"開く →";margin-top:10px;color:#0f766e;font-size:.82rem;font-weight:900}body.is-native-app[data-native-route=vocabulary] .category-card .badge,body.is-native-app[data-native-route=phrases] .category-card .badge{align-self:flex-start;font-size:.78rem}body.is-native-app[data-native-route=vocabulary] .category-card-desc,body.is-native-app[data-native-route=phrases] .category-card-desc{font-size:.84rem;line-height:1.6;color:#64748b}body.is-native-app[data-native-route=vocabulary] .word-grid,body.is-native-app[data-native-route=vocabulary] .vocabulary-grid,body.is-native-app[data-native-route=vocabulary] .learning-grid,body.is-native-app[data-native-route=phrases] .phrase-grid,body.is-native-app[data-native-route=phrases] .learning-grid{grid-template-columns:1fr;gap:14px}body.is-native-app[data-native-route=vocabulary] .word-card,body.is-native-app[data-native-route=vocabulary] .vocabulary-card,body.is-native-app[data-native-route=vocabulary] .learning-card,body.is-native-app[data-native-route=vocabulary] .flashcard,body.is-native-app[data-native-route=vocabulary] .list-card,body.is-native-app[data-native-route=phrases] .phrase-card,body.is-native-app[data-native-route=phrases] .learning-card,body.is-native-app[data-native-route=phrases] .flashcard,body.is-native-app[data-native-route=phrases] .list-card{border-radius:24px;background:#fff;border:1px solid rgba(15,118,110,.1);box-shadow:0 12px 26px #0f172a0f}body.is-native-app[data-native-route=vocabulary] .flashcard,body.is-native-app[data-native-route=phrases] .flashcard{min-height:180px}body.is-native-app[data-native-route=vocabulary] .flashcard-front,body.is-native-app[data-native-route=vocabulary] .flashcard-back,body.is-native-app[data-native-route=phrases] .flashcard-front,body.is-native-app[data-native-route=phrases] .flashcard-back{border-radius:24px}body.is-native-app[data-native-route=vocabulary] .word,body.is-native-app[data-native-route=vocabulary] .vocabulary-word,body.is-native-app[data-native-route=vocabulary] .card-word,body.is-native-app[data-native-route=phrases] .phrase,body.is-native-app[data-native-route=phrases] .phrase-text,body.is-native-app[data-native-route=phrases] .card-word{font-size:clamp(1.45rem,7vw,2.1rem);line-height:1.35}body.is-native-app[data-native-route=vocabulary] .pinyin,body.is-native-app[data-native-route=vocabulary] .vocabulary-pinyin,body.is-native-app[data-native-route=vocabulary] .card-pinyin,body.is-native-app[data-native-route=phrases] .pinyin,body.is-native-app[data-native-route=phrases] .phrase-pinyin,body.is-native-app[data-native-route=phrases] .card-pinyin{color:#0f766e;font-size:.95rem;font-weight:800}body.is-native-app[data-native-route=vocabulary] .meaning,body.is-native-app[data-native-route=vocabulary] .vocabulary-meaning,body.is-native-app[data-native-route=vocabulary] .card-meaning,body.is-native-app[data-native-route=phrases] .meaning,body.is-native-app[data-native-route=phrases] .phrase-meaning,body.is-native-app[data-native-route=phrases] .card-meaning{font-size:.98rem;line-height:1.75;color:#334155}body.is-native-app[data-native-route=vocabulary] .audio-btn,body.is-native-app[data-native-route=vocabulary] .play-btn,body.is-native-app[data-native-route=vocabulary] .remember-btn,body.is-native-app[data-native-route=vocabulary] .mark-btn,body.is-native-app[data-native-route=phrases] .audio-btn,body.is-native-app[data-native-route=phrases] .play-btn,body.is-native-app[data-native-route=phrases] .remember-btn,body.is-native-app[data-native-route=phrases] .mark-btn{min-height:44px;min-width:44px;border-radius:999px;font-weight:900}body.is-native-app[data-native-route=vocabulary] .actions,body.is-native-app[data-native-route=vocabulary] .card-actions,body.is-native-app[data-native-route=phrases] .actions,body.is-native-app[data-native-route=phrases] .card-actions{gap:10px;flex-wrap:wrap}body.is-native-app[data-native-route=vocabulary] .lead+.button-row,body.is-native-app[data-native-route=phrases] .lead+.button-row{margin-top:14px}body.is-native-app[data-native-route=vocabulary] .related-links,body.is-native-app[data-native-route=phrases] .related-links{display:grid;grid-template-columns:1fr;gap:10px}body.is-native-app[data-native-route=vocabulary] .related-links a,body.is-native-app[data-native-route=phrases] .related-links a{min-height:48px;padding:12px 14px;border-radius:18px;background:#fff;border:1px solid rgba(15,118,110,.1);box-shadow:0 8px 20px #0f172a0a;color:#0f766e;font-weight:900;text-decoration:none}@media(max-width:380px){body.is-native-app[data-native-route=vocabulary] .category-grid,body.is-native-app[data-native-route=phrases] .category-grid{gap:10px}body.is-native-app[data-native-route=vocabulary] .category-card,body.is-native-app[data-native-route=phrases] .category-card{min-height:112px;padding:14px;border-radius:20px}}body.is-native-app[data-native-route=vocabulary] .sticky-context,body.is-native-app[data-native-route=phrases] .sticky-context,body.is-native-app[data-native-route=vocabulary] .page-context,body.is-native-app[data-native-route=phrases] .page-context{margin:0 16px 10px;border-radius:22px;background:#fffffff0;border:1px solid rgba(15,118,110,.1);box-shadow:0 10px 24px #0f172a0d}body.is-native-app[data-native-route=vocabulary] .learning-list,body.is-native-app[data-native-route=vocabulary] .vocabulary-list,body.is-native-app[data-native-route=vocabulary] .word-list,body.is-native-app[data-native-route=phrases] .learning-list,body.is-native-app[data-native-route=phrases] .phrase-list{display:grid;grid-template-columns:1fr;gap:14px}body.is-native-app[data-native-route=vocabulary] .learning-item,body.is-native-app[data-native-route=vocabulary] .vocabulary-item,body.is-native-app[data-native-route=vocabulary] .word-item,body.is-native-app[data-native-route=phrases] .learning-item,body.is-native-app[data-native-route=phrases] .phrase-item{padding:18px;border-radius:24px;background:#fff;border:1px solid rgba(15,118,110,.1);box-shadow:0 12px 26px #0f172a0f}body.is-native-app[data-native-route=vocabulary] .flashcard-grid,body.is-native-app[data-native-route=phrases] .flashcard-grid{display:grid;grid-template-columns:1fr;gap:14px}body.is-native-app[data-native-route=vocabulary] .flashcard,body.is-native-app[data-native-route=phrases] .flashcard{border-radius:26px;overflow:hidden;background:#fff;box-shadow:0 12px 28px #0f172a12}body.is-native-app[data-native-route=vocabulary] .flashcard-inner,body.is-native-app[data-native-route=phrases] .flashcard-inner{border-radius:26px}body.is-native-app[data-native-route=vocabulary] .flashcard-front,body.is-native-app[data-native-route=vocabulary] .flashcard-back,body.is-native-app[data-native-route=phrases] .flashcard-front,body.is-native-app[data-native-route=phrases] .flashcard-back{padding:22px 18px;border-radius:26px;background:#fff}body.is-native-app[data-native-route=vocabulary] .flashcard-front{background:radial-gradient(circle at top left,rgba(15,118,110,.09),transparent 42%),#fff}body.is-native-app[data-native-route=phrases] .flashcard-front{background:radial-gradient(circle at top left,rgba(99,102,241,.09),transparent 42%),#fff}body.is-native-app[data-native-route=vocabulary] .word-text,body.is-native-app[data-native-route=vocabulary] .vocabulary-text,body.is-native-app[data-native-route=vocabulary] .learning-word,body.is-native-app[data-native-route=phrases] .phrase-text,body.is-native-app[data-native-route=phrases] .learning-phrase{margin-bottom:8px;font-size:clamp(1.7rem,8vw,2.35rem);line-height:1.32;font-weight:900;color:#0f172a}body.is-native-app[data-native-route=vocabulary] .pinyin,body.is-native-app[data-native-route=vocabulary] .word-pinyin,body.is-native-app[data-native-route=vocabulary] .vocabulary-pinyin,body.is-native-app[data-native-route=phrases] .pinyin,body.is-native-app[data-native-route=phrases] .phrase-pinyin{margin-bottom:8px;color:#0f766e;font-size:.98rem;line-height:1.7;font-weight:800}body.is-native-app[data-native-route=vocabulary] .meaning,body.is-native-app[data-native-route=vocabulary] .word-meaning,body.is-native-app[data-native-route=vocabulary] .vocabulary-meaning,body.is-native-app[data-native-route=phrases] .meaning,body.is-native-app[data-native-route=phrases] .phrase-meaning{color:#334155;font-size:1rem;line-height:1.75;font-weight:700}body.is-native-app[data-native-route=vocabulary] .example,body.is-native-app[data-native-route=vocabulary] .word-example,body.is-native-app[data-native-route=vocabulary] .vocabulary-example,body.is-native-app[data-native-route=phrases] .example,body.is-native-app[data-native-route=phrases] .phrase-example{margin-top:12px;padding:14px;border-radius:18px;background:#f8fafc;border:1px solid #e2e8f0}body.is-native-app[data-native-route=vocabulary] .example p,body.is-native-app[data-native-route=phrases] .example p{margin-top:0;margin-bottom:6px}body.is-native-app[data-native-route=vocabulary] .example p:last-child,body.is-native-app[data-native-route=phrases] .example p:last-child{margin-bottom:0;color:#64748b;font-size:.9rem}body.is-native-app[data-native-route=vocabulary] .audio-btn,body.is-native-app[data-native-route=vocabulary] .play-audio,body.is-native-app[data-native-route=vocabulary] .remember-btn,body.is-native-app[data-native-route=vocabulary] .flip-btn,body.is-native-app[data-native-route=phrases] .audio-btn,body.is-native-app[data-native-route=phrases] .play-audio,body.is-native-app[data-native-route=phrases] .remember-btn,body.is-native-app[data-native-route=phrases] .flip-btn{min-height:46px;padding:0 16px;border-radius:999px;font-size:.9rem;font-weight:900}body.is-native-app[data-native-route=vocabulary] .card-actions,body.is-native-app[data-native-route=vocabulary] .learning-actions,body.is-native-app[data-native-route=phrases] .card-actions,body.is-native-app[data-native-route=phrases] .learning-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}body.is-native-app[data-native-route=vocabulary] .category-nav,body.is-native-app[data-native-route=phrases] .category-nav,body.is-native-app[data-native-route=vocabulary] .scene-nav,body.is-native-app[data-native-route=phrases] .scene-nav{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding:0 16px 8px}body.is-native-app[data-native-route=vocabulary] .category-nav::-webkit-scrollbar,body.is-native-app[data-native-route=phrases] .category-nav::-webkit-scrollbar,body.is-native-app[data-native-route=vocabulary] .scene-nav::-webkit-scrollbar,body.is-native-app[data-native-route=phrases] .scene-nav::-webkit-scrollbar{display:none}body.is-native-app[data-native-route=vocabulary] .category-nav a,body.is-native-app[data-native-route=phrases] .category-nav a,body.is-native-app[data-native-route=vocabulary] .scene-nav a,body.is-native-app[data-native-route=phrases] .scene-nav a{flex:0 0 auto;min-height:38px;padding:8px 13px;border-radius:999px;background:#fff;border:1px solid rgba(15,118,110,.12);color:#0f766e;font-size:.84rem;font-weight:900;text-decoration:none}body.is-native-app[data-native-route=vocabulary] .category-nav a[aria-current=page],body.is-native-app[data-native-route=phrases] .category-nav a[aria-current=page],body.is-native-app[data-native-route=vocabulary] .scene-nav a[aria-current=page],body.is-native-app[data-native-route=phrases] .scene-nav a[aria-current=page]{background:#0f766e;color:#fff}body.is-native-app[data-native-route=vocabulary] .related-learning-links,body.is-native-app[data-native-route=phrases] .related-learning-links,body.is-native-app[data-native-route=vocabulary] .related-section,body.is-native-app[data-native-route=phrases] .related-section{display:none}body.is-native-app[data-native-route=vocabulary] .sticky-context,body.is-native-app[data-native-route=vocabulary] .sticky-page-context,body.is-native-app[data-native-route=vocabulary] .page-context,body.is-native-app[data-native-route=vocabulary] .page-context-bar,body.is-native-app[data-native-route=phrases] .sticky-context,body.is-native-app[data-native-route=phrases] .sticky-page-context,body.is-native-app[data-native-route=phrases] .page-context,body.is-native-app[data-native-route=phrases] .page-context-bar{position:sticky;top:calc(66px + env(safe-area-inset-top));z-index:80;margin:0 12px 12px;padding:10px 12px;border-radius:18px;background:#fffffff5;border:1px solid rgba(15,118,110,.12);box-shadow:0 10px 24px #0f172a14;backdrop-filter:blur(12px);transition:top .22s ease,transform .22s ease,box-shadow .22s ease,background-color .22s ease}body.is-native-app.is-native-header-hidden[data-native-route=vocabulary] .sticky-context,body.is-native-app.is-native-header-hidden[data-native-route=vocabulary] .sticky-page-context,body.is-native-app.is-native-header-hidden[data-native-route=vocabulary] .page-context,body.is-native-app.is-native-header-hidden[data-native-route=vocabulary] .page-context-bar,body.is-native-app.is-native-header-hidden[data-native-route=phrases] .sticky-context,body.is-native-app.is-native-header-hidden[data-native-route=phrases] .sticky-page-context,body.is-native-app.is-native-header-hidden[data-native-route=phrases] .page-context,body.is-native-app.is-native-header-hidden[data-native-route=phrases] .page-context-bar{top:calc(8px + env(safe-area-inset-top));box-shadow:0 12px 26px #0f172a1a}body.is-native-app[data-native-route=vocabulary] .sticky-context *,body.is-native-app[data-native-route=vocabulary] .sticky-page-context *,body.is-native-app[data-native-route=vocabulary] .page-context *,body.is-native-app[data-native-route=vocabulary] .page-context-bar *,body.is-native-app[data-native-route=phrases] .sticky-context *,body.is-native-app[data-native-route=phrases] .sticky-page-context *,body.is-native-app[data-native-route=phrases] .page-context *,body.is-native-app[data-native-route=phrases] .page-context-bar *{line-height:1.45}body.is-native-app[data-native-route=vocabulary] .sticky-context p,body.is-native-app[data-native-route=vocabulary] .sticky-page-context p,body.is-native-app[data-native-route=vocabulary] .page-context p,body.is-native-app[data-native-route=vocabulary] .page-context-bar p,body.is-native-app[data-native-route=phrases] .sticky-context p,body.is-native-app[data-native-route=phrases] .sticky-page-context p,body.is-native-app[data-native-route=phrases] .page-context p,body.is-native-app[data-native-route=phrases] .page-context-bar p{margin:0}body.is-native-app[data-native-route=vocabulary] .sticky-context a,body.is-native-app[data-native-route=vocabulary] .sticky-page-context a,body.is-native-app[data-native-route=vocabulary] .page-context a,body.is-native-app[data-native-route=vocabulary] .page-context-bar a,body.is-native-app[data-native-route=phrases] .sticky-context a,body.is-native-app[data-native-route=phrases] .sticky-page-context a,body.is-native-app[data-native-route=phrases] .page-context a,body.is-native-app[data-native-route=phrases] .page-context-bar a{min-height:34px;border-radius:999px}@media(max-width:380px){body.is-native-app[data-native-route=vocabulary] .sticky-context,body.is-native-app[data-native-route=vocabulary] .sticky-page-context,body.is-native-app[data-native-route=vocabulary] .page-context,body.is-native-app[data-native-route=vocabulary] .page-context-bar,body.is-native-app[data-native-route=phrases] .sticky-context,body.is-native-app[data-native-route=phrases] .sticky-page-context,body.is-native-app[data-native-route=phrases] .page-context,body.is-native-app[data-native-route=phrases] .page-context-bar{margin-left:8px;margin-right:8px;padding:9px 10px;border-radius:16px}body.is-native-app.is-native-header-hidden[data-native-route=vocabulary] .sticky-context,body.is-native-app.is-native-header-hidden[data-native-route=vocabulary] .sticky-page-context,body.is-native-app.is-native-header-hidden[data-native-route=vocabulary] .page-context,body.is-native-app.is-native-header-hidden[data-native-route=vocabulary] .page-context-bar,body.is-native-app.is-native-header-hidden[data-native-route=phrases] .sticky-context,body.is-native-app.is-native-header-hidden[data-native-route=phrases] .sticky-page-context,body.is-native-app.is-native-header-hidden[data-native-route=phrases] .page-context,body.is-native-app.is-native-header-hidden[data-native-route=phrases] .page-context-bar{top:calc(6px + env(safe-area-inset-top))}}body.is-native-app[data-native-route=vocabulary] .word-grid,body.is-native-app[data-native-route=vocabulary] .vocabulary-grid,body.is-native-app[data-native-route=vocabulary] .learning-grid,body.is-native-app[data-native-route=vocabulary] .flashcard-grid,body.is-native-app[data-native-route=phrases] .phrase-grid,body.is-native-app[data-native-route=phrases] .learning-grid,body.is-native-app[data-native-route=phrases] .flashcard-grid{gap:10px}body.is-native-app[data-native-route=vocabulary] .word-card,body.is-native-app[data-native-route=vocabulary] .vocabulary-card,body.is-native-app[data-native-route=vocabulary] .learning-card,body.is-native-app[data-native-route=vocabulary] .flashcard,body.is-native-app[data-native-route=vocabulary] .list-card,body.is-native-app[data-native-route=vocabulary] .learning-item,body.is-native-app[data-native-route=vocabulary] .vocabulary-item,body.is-native-app[data-native-route=vocabulary] .word-item,body.is-native-app[data-native-route=phrases] .phrase-card,body.is-native-app[data-native-route=phrases] .learning-card,body.is-native-app[data-native-route=phrases] .flashcard,body.is-native-app[data-native-route=phrases] .list-card,body.is-native-app[data-native-route=phrases] .learning-item,body.is-native-app[data-native-route=phrases] .phrase-item{padding:12px 14px;border-radius:18px;min-height:auto;box-shadow:0 8px 18px #0f172a0b}body.is-native-app[data-native-route=vocabulary] .flashcard-front,body.is-native-app[data-native-route=vocabulary] .flashcard-back,body.is-native-app[data-native-route=phrases] .flashcard-front,body.is-native-app[data-native-route=phrases] .flashcard-back{padding:14px;border-radius:18px;min-height:auto}body.is-native-app[data-native-route=vocabulary] .flashcard,body.is-native-app[data-native-route=phrases] .flashcard{min-height:108px;border-radius:18px}body.is-native-app[data-native-route=vocabulary] .flashcard-inner,body.is-native-app[data-native-route=phrases] .flashcard-inner{border-radius:18px;min-height:108px}body.is-native-app[data-native-route=vocabulary] .word,body.is-native-app[data-native-route=vocabulary] .word-text,body.is-native-app[data-native-route=vocabulary] .vocabulary-word,body.is-native-app[data-native-route=vocabulary] .vocabulary-text,body.is-native-app[data-native-route=vocabulary] 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.learning-phrase,body.is-native-app[data-native-route=phrases] .card-word{margin:0 0 5px;font-size:clamp(1.08rem,4.8vw,1.42rem);line-height:1.42;font-weight:900}body.is-native-app[data-native-route=phrases] .pinyin,body.is-native-app[data-native-route=phrases] .phrase-pinyin,body.is-native-app[data-native-route=phrases] .card-pinyin{margin:0 0 4px;font-size:.82rem;line-height:1.45;color:#0f766e;font-weight:800}body.is-native-app[data-native-route=phrases] .meaning,body.is-native-app[data-native-route=phrases] .phrase-meaning,body.is-native-app[data-native-route=phrases] .card-meaning{margin:0;font-size:.9rem;line-height:1.55;color:#334155;font-weight:700}body.is-native-app[data-native-route=vocabulary] .example,body.is-native-app[data-native-route=vocabulary] .word-example,body.is-native-app[data-native-route=vocabulary] .vocabulary-example,body.is-native-app[data-native-route=phrases] .example,body.is-native-app[data-native-route=phrases] .phrase-example{margin-top:8px;padding:10px 12px;border-radius:14px;background:#f8fafc;font-size:.82rem;line-height:1.55}body.is-native-app[data-native-route=vocabulary] .example p,body.is-native-app[data-native-route=phrases] .example p{margin-bottom:4px}body.is-native-app[data-native-route=vocabulary] .card-actions,body.is-native-app[data-native-route=vocabulary] .learning-actions,body.is-native-app[data-native-route=phrases] .card-actions,body.is-native-app[data-native-route=phrases] .learning-actions{margin-top:10px;gap:8px}body.is-native-app[data-native-route=vocabulary] .audio-btn,body.is-native-app[data-native-route=vocabulary] .play-audio,body.is-native-app[data-native-route=vocabulary] .remember-btn,body.is-native-app[data-native-route=vocabulary] .flip-btn,body.is-native-app[data-native-route=phrases] .audio-btn,body.is-native-app[data-native-route=phrases] .play-audio,body.is-native-app[data-native-route=phrases] .remember-btn,body.is-native-app[data-native-route=phrases] .flip-btn{min-height:38px;min-width:38px;padding:0 12px;font-size:.82rem}@media(min-width:390px){body.is-native-app[data-native-route=vocabulary] .word-grid,body.is-native-app[data-native-route=vocabulary] .vocabulary-grid,body.is-native-app[data-native-route=vocabulary] .learning-grid:not(.phrase-grid){grid-template-columns:repeat(2,minmax(0,1fr))}body.is-native-app[data-native-route=vocabulary] .word-card,body.is-native-app[data-native-route=vocabulary] .vocabulary-card,body.is-native-app[data-native-route=vocabulary] .learning-card,body.is-native-app[data-native-route=vocabulary] .flashcard,body.is-native-app[data-native-route=vocabulary] .list-card{min-height:132px}body.is-native-app[data-native-route=vocabulary] .word,body.is-native-app[data-native-route=vocabulary] .word-text,body.is-native-app[data-native-route=vocabulary] .vocabulary-word,body.is-native-app[data-native-route=vocabulary] .vocabulary-text,body.is-native-app[data-native-route=vocabulary] 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.section-heading-row,body.is-native-app[data-native-route=phrases] .section-heading-row{margin-bottom:10px!important}body.is-native-app[data-native-route=vocabulary] .section-heading-row h2,body.is-native-app[data-native-route=phrases] .section-heading-row h2{margin-bottom:2px!important;font-size:1rem!important}body.is-native-app[data-native-route=vocabulary] .section-count,body.is-native-app[data-native-route=phrases] .section-count{font-size:.8rem!important}body.is-native-app[data-native-route=vocabulary] .section-lead-mini,body.is-native-app[data-native-route=phrases] .section-lead-mini{display:none!important}body.is-native-app[data-native-route=vocabulary] .list-grid,body.is-native-app[data-native-route=phrases] .list-grid{display:grid!important;grid-template-columns:1fr!important;gap:8px!important}body.is-native-app[data-native-route=vocabulary] .word-card.study-card,body.is-native-app[data-native-route=phrases] .word-card.study-card{min-height:auto!important;padding:10px 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2px!important;font-size:clamp(1.08rem,4.8vw,1.42rem)!important;line-height:1.25!important;font-weight:900!important;color:#0f172a!important}body.is-native-app[data-native-route=phrases] .word-main{margin:0 0 3px!important;font-size:clamp(.98rem,4.2vw,1.22rem)!important;line-height:1.34!important;font-weight:900!important;color:#0f172a!important}body.is-native-app[data-native-route=vocabulary] .word-pinyin,body.is-native-app[data-native-route=phrases] .word-pinyin{margin:0 0 2px!important;font-size:.76rem!important;line-height:1.34!important;color:#0f766e!important;font-weight:800!important}body.is-native-app[data-native-route=vocabulary] .word-meaning,body.is-native-app[data-native-route=phrases] .word-meaning{margin:0!important;font-size:.82rem!important;line-height:1.42!important;color:#334155!important;font-weight:700!important}body.is-native-app[data-native-route=vocabulary] .example-box,body.is-native-app[data-native-route=phrases] 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.sticky-page-context,body.is-native-app.is-native-header-hidden[data-native-route=vocabulary] .page-context,body.is-native-app.is-native-header-hidden[data-native-route=vocabulary] .page-context-bar,body.is-native-app.is-native-header-hidden[data-native-route=phrases] .sticky-context,body.is-native-app.is-native-header-hidden[data-native-route=phrases] .sticky-page-context,body.is-native-app.is-native-header-hidden[data-native-route=phrases] .page-context,body.is-native-app.is-native-header-hidden[data-native-route=phrases] .page-context-bar{transform:translateY(-12px);opacity:0;pointer-events:none;visibility:hidden}body.is-native-app[data-native-route=vocabulary] .sticky-context,body.is-native-app[data-native-route=vocabulary] .sticky-page-context,body.is-native-app[data-native-route=vocabulary] .page-context,body.is-native-app[data-native-route=vocabulary] .page-context-bar,body.is-native-app[data-native-route=phrases] .sticky-context,body.is-native-app[data-native-route=phrases] .sticky-page-context,body.is-native-app[data-native-route=phrases] .page-context,body.is-native-app[data-native-route=phrases] .page-context-bar{transition:top .22s ease,transform .22s ease,opacity .22s ease,visibility .22s ease,box-shadow .22s ease}.native-learning-filter,.memorized-toggle-btn,.native-learning-empty{display:none}body.is-native-app[data-native-route=vocabulary] .native-learning-filter,body.is-native-app[data-native-route=phrases] .native-learning-filter{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin-top:10px;padding:6px;border-radius:999px;background:#ffffffeb;border:1px solid rgba(15,118,110,.12);box-shadow:0 8px 20px #0f172a0d}body.is-native-app[data-native-route=vocabulary] .native-learning-filter-btn,body.is-native-app[data-native-route=phrases] .native-learning-filter-btn{min-height:36px;padding:6px 8px;border:none;border-radius:999px;background:transparent;color:#64748b;font:inherit;font-size:.78rem;font-weight:900}body.is-native-app[data-native-route=vocabulary] .native-learning-filter-btn.is-active,body.is-native-app[data-native-route=phrases] .native-learning-filter-btn.is-active{background:#0f766e;color:#fff;box-shadow:0 8px 18px #0f766e29}body.is-native-app[data-native-route=vocabulary] .native-learning-filter-btn span,body.is-native-app[data-native-route=phrases] .native-learning-filter-btn span{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;margin-left:3px;padding:0 5px;border-radius:999px;background:#0f766e1a;font-size:.7rem}body.is-native-app[data-native-route=vocabulary] .native-learning-filter-btn.is-active span,body.is-native-app[data-native-route=phrases] .native-learning-filter-btn.is-active span{background:#fff3}body.is-native-app[data-native-route=vocabulary] .memorized-toggle-btn,body.is-native-app[data-native-route=phrases] .memorized-toggle-btn{display:inline-flex;align-items:center;justify-content:center;min-height:32px;padding:0 10px;border:1px solid rgba(15,118,110,.18);border-radius:999px;background:#fff;color:#0f766e;font:inherit;font-size:.74rem;font-weight:900}body.is-native-app[data-native-route=vocabulary] .memorized-toggle-btn.is-memorized,body.is-native-app[data-native-route=phrases] .memorized-toggle-btn.is-memorized{background:#0f766e;border-color:#0f766e;color:#fff}body.is-native-app[data-native-route=vocabulary] .word-card.study-card.is-memorized-card,body.is-native-app[data-native-route=phrases] .word-card.study-card.is-memorized-card{border-color:#0f766e38!important;background:linear-gradient(180deg,#eafaf68c,#fffffff5),#fff!important}body.is-native-app[data-native-route=vocabulary] .word-card.study-card.is-memorized-card .word-main,body.is-native-app[data-native-route=phrases] .word-card.study-card.is-memorized-card .word-main{color:#0f766e!important}body.is-native-app[data-native-route=vocabulary] .native-learning-empty,body.is-native-app[data-native-route=phrases] .native-learning-empty{padding:22px 16px;border-radius:18px;background:#fff;border:1px dashed rgba(15,118,110,.22);color:#64748b;text-align:center;font-size:.9rem;font-weight:700}@media(max-width:380px){body.is-native-app[data-native-route=vocabulary] .native-learning-filter-btn,body.is-native-app[data-native-route=phrases] .native-learning-filter-btn{font-size:.72rem;padding-left:4px;padding-right:4px}}