:root{--brand:#0866ed;--ink:#0f2a4d;--text:#1b2433;--muted:#5d6b80;--bg:#fff;--card:#fff;--line:#e6eaf1;--accent:var(--brand);--radius:16px;--shadow:0 1px 2px #1239660d, 0 4px 14px #1239660d;color-scheme:light}:root[data-theme=dark]{--ink:#e8eefb;--text:#e6ebf3;--muted:#9aa8bd;--bg:#0e1522;--card:#172133;--line:#26334a;--shadow:0 1px 2px #0000004d, 0 4px 16px #00000040;color-scheme:dark}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);margin:0;font:16px/1.55 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,sans-serif}a{color:var(--brand)}img{max-width:100%;height:auto}.wrap{max-width:1040px;margin:0 auto;padding:0 16px}h1,h2,h3{color:var(--ink);line-height:1.2}h1{margin:.3em 0;font-size:clamp(1.8rem,4vw,2.6rem)}h2{margin:1.8em 0 .6em;font-size:1.4rem}.muted{color:var(--muted)}.site-header{background:var(--card);border-bottom:1px solid var(--line)}.site-header .wrap{justify-content:space-between;align-items:center;gap:12px;height:60px;display:flex}.logo{color:var(--ink);align-items:center;gap:8px;font-size:1.2rem;font-weight:800;text-decoration:none;display:flex}.logo img{width:34px;height:34px}.site-header nav{align-items:center}.theme-toggle{border:1px solid var(--line);background:var(--card);width:36px;height:36px;color:var(--ink);cursor:pointer;border-radius:50%;place-items:center;padding:0;display:grid}.theme-toggle:hover{border-color:var(--brand);color:var(--brand)}.theme-toggle svg{width:18px;height:18px}.theme-toggle .sun{display:none}:root[data-theme=dark] .theme-toggle .sun{display:block}:root[data-theme=dark] .theme-toggle .moon{display:none}.site-header nav{gap:16px;font-size:.95rem;display:flex}.site-header nav a{color:var(--muted);text-decoration:none}.site-header nav a:hover{color:var(--brand)}.site-footer{border-top:1px solid var(--line);color:var(--muted);margin-top:64px;padding:32px 0;font-size:.9rem}.site-footer .wrap{flex-wrap:wrap;justify-content:space-between;gap:8px 20px;display:flex}.site-footer a{color:var(--muted)}.btn{cursor:pointer;border:0;border-radius:999px;align-items:center;gap:8px;padding:12px 20px;font-size:1rem;font-weight:700;text-decoration:none;display:inline-flex}.btn-primary{background:var(--brand);color:#fff}.btn-dark{color:#fff;background:#000}.btn-ghost{color:var(--brand);border:1.5px solid var(--line);background:0 0}.crumbs{color:var(--muted);margin:20px 0 0;font-size:.88rem}.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--brand)}.grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;display:grid}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}a.card{color:inherit;text-decoration:none;transition:transform .12s,border-color .12s}a.card:hover{border-color:var(--accent);transform:translateY(-2px)}.lang-card{border-left:5px solid var(--c);align-items:center;gap:12px;display:flex}.lang-card .flag{font-size:1.9rem}.lang-card strong{color:var(--ink);display:block}.cat-card .emoji{font-size:1.6rem}.cat-card strong{color:var(--ink);margin:4px 0 2px;display:block}.cat-card small{color:var(--muted)}.phrase-list{gap:8px;margin:0;padding:0;list-style:none;display:grid}.phrase-row{background:var(--card);border:1px solid var(--line);border-radius:14px;grid-template-columns:44px 1fr;align-items:center;gap:12px;padding:10px 14px;display:grid}.phrase-row .en{color:var(--muted);font-size:.92rem}.phrase-row .en a{color:var(--muted);text-decoration:none}.phrase-row .en a:hover{color:var(--brand);text-decoration:underline}.phrase-row .tx{color:var(--ink);font-size:1.15rem;font-weight:650}.phrase-row .ph{color:var(--accent);font-size:.9rem;font-style:italic}.play{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:50%;flex:none;place-items:center;width:44px;height:44px;display:grid}.play svg{width:18px;height:18px}.play.playing{animation:.8s ease-in-out infinite alternate pulse}@keyframes pulse{to{opacity:.85;transform:scale(1.08)}}[dir=rtl]{unicode-bidi:plaintext}.phrase-hero{background:var(--card);border:1px solid var(--line);border-top:6px solid var(--accent);box-shadow:var(--shadow);border-radius:20px;margin-top:16px;padding:28px 24px}.phrase-hero .q{color:var(--muted);margin:0;font-size:1rem}.phrase-hero .big{color:var(--ink);word-break:break-word;margin:12px 0 4px;font-size:clamp(2rem,7vw,3.4rem);font-weight:800;line-height:1.25}.phrase-hero .say{color:var(--accent);margin:0 0 20px;font-size:1.25rem;font-style:italic}.actions{flex-wrap:wrap;gap:10px;display:flex}.actions .btn{background:var(--accent);color:#fff}.actions .btn.alt{color:var(--accent);border:1.5px solid var(--accent);background:0 0}.table-wrap{overflow-x:auto}table{border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:14px;width:100%;overflow:hidden}th,td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;padding:10px 12px}th{color:var(--muted);font-size:.85rem;font-weight:600}tr:last-child td{border-bottom:0}td .ph{color:var(--muted);font-size:.9rem;font-style:italic}.app-cta{color:#fff;background:linear-gradient(135deg,#0866ed,#123966);border-radius:22px;flex-wrap:wrap;align-items:center;gap:20px;margin-top:40px;padding:24px;display:flex}.app-cta img{width:84px;height:84px}.app-cta h2{color:#fff;margin:0 0 6px;font-size:1.3rem}.app-cta p{opacity:.9;margin:0 0 14px}.app-cta>div{flex:260px}.app-cta .btn{color:#0866ed;background:#fff}.hero{grid-template-columns:1.3fr 1fr;align-items:center;gap:24px;padding:40px 0 8px;display:grid}.hero p.lead{color:var(--muted);max-width:34em;font-size:1.15rem}.hero .art{justify-self:center;width:min(280px,70vw)}.pills{flex-wrap:wrap;gap:8px;margin:18px 0;padding:0;list-style:none;display:flex}.pills li{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:.9rem}@media (width<=720px){.hero{grid-template-columns:1fr}.hero .art{grid-row:1;width:160px}.site-header nav a.hide-sm{display:none}}dialog.show{background:var(--accent);color:#fff;border:0;width:100vw;max-width:none;height:100vh;max-height:none;padding:0}dialog.show .inner{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:16px;height:100%;padding:24px;display:flex}dialog.show .huge{word-break:break-word;font-size:clamp(2.4rem,11vw,6rem);font-weight:800;line-height:1.2}dialog.show .btn{color:var(--accent);background:#fff}.prose{max-width:46em}.prose h2{font-size:1.2rem}.lead{max-width:40em;font-size:1.1rem}.chips{flex-wrap:wrap;gap:8px;margin:16px 0 24px;display:flex}.chip{background:var(--card);border:1px solid var(--line);color:var(--ink);border-radius:999px;padding:6px 14px;font-size:.92rem;text-decoration:none}.chip:hover{border-color:var(--brand);color:var(--brand)}.post-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));margin-top:8px}.post-card{border-top:4px solid var(--c,var(--brand));flex-direction:column;gap:6px;display:flex}.post-card strong{color:var(--ink);font-size:1.05rem;line-height:1.3}.post-card-kicker{color:var(--muted);font-size:.82rem;font-weight:700}.post-card-desc{color:var(--text);opacity:.85;font-size:.92rem}.post{max-width:46rem;margin:0 auto}.post-head h1{margin:.2em 0 .3em;font-size:clamp(1.8rem,5vw,2.5rem)}.post-kicker{color:var(--accent);margin:24px 0 0;font-weight:700}.post-meta{color:var(--muted);margin:0 0 20px;font-size:.9rem}.toc{background:var(--card);border:1px solid var(--line);border-radius:14px;margin:0 0 8px;padding:14px 18px}.toc ol{margin:6px 0 0;padding-left:20px}.toc li{margin:3px 0}.toc a{text-decoration:none}.prose-post{font-size:1.05rem;line-height:1.7}.prose-post h2{margin:2em 0 .5em;scroll-margin-top:16px;font-size:1.5rem}.prose-post h3{margin:1.6em 0 .4em;font-size:1.15rem}.prose-post p,.prose-post ul,.prose-post ol{margin:.8em 0}.prose-post li{margin:.3em 0}.prose-post .answer{background:var(--card);border-left:5px solid var(--accent);border-radius:10px;padding:14px 18px;font-size:1.15rem}.post-phrases{margin:14px 0 20px}.post-phrases .phrase-row .note{color:var(--muted);margin-top:2px;font-size:.88rem}.no-audio{width:44px;height:44px;color:var(--muted);place-items:center;font-size:1.4rem;display:grid}.callout{border:1px solid var(--line);background:var(--card);border-radius:14px;margin:1.2em 0;padding:14px 18px}.callout-tip{border-left:5px solid var(--accent)}.callout-warning{border-left:5px solid #d9822b}.callout-title{color:var(--ink);margin-bottom:4px;display:block}.callout p{margin:.4em 0}.dialogue{gap:8px;margin:1.2em 0;padding:0;list-style:none;display:grid}.dialogue li{border:1px solid var(--line);background:var(--card);border-radius:14px;gap:1px;max-width:92%;padding:10px 14px;display:grid}.dialogue li.you{border-color:var(--accent);margin-left:auto}.dialogue .who{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:.78rem;font-weight:700}.dialogue .tx{color:var(--ink);font-size:1.1rem;font-weight:650}.dialogue .ph{color:var(--accent);font-size:.9rem;font-style:italic}.dialogue .en{color:var(--muted);font-size:.9rem}.faq{margin-top:2.4em}.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:8px 0;padding:12px 16px}.faq summary{cursor:pointer;color:var(--ink);font-weight:650}.faq p{margin:8px 0 0}.related{margin-top:2em}.post-card-thumb{aspect-ratio:16/9;object-fit:cover;border-radius:calc(var(--radius) - 2px) calc(var(--radius) - 2px) 0 0;background:var(--line);width:calc(100% + 32px);max-width:none;margin:-16px -16px 6px;display:block}.post-hero-img{aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius);background:var(--line);width:100%;box-shadow:var(--shadow);margin:4px 0 18px;display:block}.play.speak{color:var(--accent);border:2px solid var(--accent);background:0 0}.play.speak.small{width:32px;height:32px;margin-top:4px}.play.speak.small svg{width:14px;height:14px}.dialogue li .play.speak{align-self:flex-start}.dialogue li{padding-right:52px;position:relative}.dialogue li .play.speak{margin:0;position:absolute;top:10px;right:10px}.dialogue li .play.small{width:32px;height:32px;margin:0;position:absolute;top:10px;right:10px}.dialogue li .play.small svg{width:14px;height:14px}.video-embed{margin:0 0 22px}.video-frame{aspect-ratio:16/9;border-radius:var(--radius);box-shadow:var(--shadow);background:#000;position:relative;overflow:hidden}.video-frame iframe,.video-play{cursor:pointer;background:0 0;border:0;width:100%;height:100%;padding:0;position:absolute;inset:0}.video-play img{object-fit:cover;opacity:.85;width:100%;height:100%}.video-play svg{background:var(--accent,#2563eb);color:#fff;border-radius:50%;width:72px;height:72px;padding:18px 14px 18px 22px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.video-embed figcaption{color:var(--muted,#667);margin-top:6px;font-size:.85rem}.nav-langs{position:relative}.nav-langs summary{cursor:pointer;color:var(--muted);align-items:center;gap:4px;list-style:none;display:inline-flex}.nav-langs summary::-webkit-details-marker{display:none}.nav-langs summary:after{content:"";border-bottom:2px solid;border-right:2px solid;width:6px;height:6px;transition:transform .15s;transform:rotate(45deg)translateY(-2px)}.nav-langs[open] summary:after{transform:rotate(225deg)}.nav-langs summary:hover,.nav-langs[open] summary{color:var(--brand)}.nav-langs-menu{background:var(--card);border:1px solid var(--line);min-width:250px;box-shadow:var(--shadow);z-index:50;border-radius:16px;gap:2px;padding:8px;display:grid;position:absolute;top:calc(100% + 14px);right:0}.nav-langs-menu a{color:var(--ink);border-radius:10px;align-items:center;gap:12px;padding:10px 12px;display:flex}.nav-langs-menu a:hover{background:color-mix(in srgb, var(--c) 12%, transparent);color:var(--ink)}.nav-langs-menu .flag{font-size:1.6rem;line-height:1}.nav-langs-menu strong{font-size:1rem;display:block}.nav-langs-menu small{color:var(--muted);font-size:.8rem;display:block}