:root{--bg:#fff;--bg-soft:#f5f6fb;--card:#fff;--text:#14152b;--muted:#5e6180;--border:#e3e5f0;--accent:#5b5bf7;--accent-hover:#4646e0;--accent-soft:#ececff;--you:#5b5bf7;--stranger:#e0446a;--danger:#e0446a;--radius:14px;--shadow:0 1px 2px #14152b0d, 0 8px 24px #14152b0f;--font:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#0e0f1a;--bg-soft:#151628;--card:#181a2e;--text:#eceefc;--muted:#9ea2c4;--border:#2a2c48;--accent:#7373ff;--accent-hover:#8a8aff;--accent-soft:#23244a;--you:#8c8cff;--stranger:#ff6b8e;--shadow:0 1px 2px #0000004d, 0 8px 24px #00000040}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased;line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{letter-spacing:-.02em;margin:0 0 .5em;line-height:1.2}h1{font-size:clamp(2rem,4.5vw,3.2rem)}h2{margin-top:1.6em;font-size:clamp(1.4rem,2.6vw,1.9rem)}h3,.h3{margin:0 0 .35em;font-size:1.15rem}p{margin:0 0 1em}kbd{font:600 .7rem/1 var(--font);border:1px solid var(--border);background:var(--bg-soft);color:var(--muted);border-bottom-width:2px;border-radius:5px;padding:3px 5px}.muted{color:var(--muted)}.tiny{font-size:.85rem}.lead{color:var(--muted);max-width:65ch;font-size:1.15rem}.center{text-align:center}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.skip-link{position:absolute;left:-9999px}.skip-link:focus{z-index:10;background:var(--card);border-radius:8px;padding:8px 12px;top:16px;left:16px}.container{width:100%;max-width:1120px;margin:0 auto;padding:0 20px}.narrow{max-width:760px}.section{padding-top:56px;padding-bottom:24px}.btn{font:600 .95rem/1 var(--font);cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:11px 18px;transition:background .15s,border-color .15s,transform 50ms;display:inline-flex;text-decoration:none!important}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn:focus-visible,a:focus-visible,textarea:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid color-mix(in srgb, var(--accent) 45%, transparent);outline-offset:2px}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-secondary{background:var(--card);color:var(--text);border-color:var(--border)}.btn-secondary:hover:not(:disabled){border-color:var(--accent)}.btn-ghost{color:var(--text);border-color:var(--border);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--bg-soft)}.btn-danger{background:var(--danger);color:#fff}.btn-link{color:var(--muted);background:0 0;padding:6px}.btn-lg{border-radius:12px;padding:15px 24px;font-size:1.05rem}.btn-sm{padding:8px 14px;font-size:.9rem}.btn-icon{padding:11px 13px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.card-link{color:inherit;transition:border-color .15s,transform .15s;display:block}.card-link:hover{border-color:var(--accent);text-decoration:none;transform:translateY(-2px)}.grid-3{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;display:grid}.chip{background:var(--accent-soft);color:var(--accent);border-radius:999px;align-items:center;gap:6px;padding:5px 12px;font-size:.9rem;font-weight:600;display:inline-flex}.chip button{color:inherit;cursor:pointer;background:0 0;border:0;padding:0;font-size:1.05rem;line-height:1}.chip-link{padding:9px 16px}.chip-link:hover{background:var(--accent);color:#fff;text-decoration:none}.topic-links{flex-wrap:wrap;gap:10px;display:flex}.online-badge{color:var(--muted);align-items:center;gap:8px;font-size:.85rem;font-weight:600;display:inline-flex}.dot{background:#22c55e;border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 4px #22c55e2e}.site-header{z-index:5;background:color-mix(in srgb, var(--bg) 85%, transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);position:sticky;top:0}.nav{justify-content:space-between;align-items:center;height:64px;display:flex}.nav nav{align-items:center;gap:22px;display:flex}.nav nav a:not(.btn){color:var(--text);font-weight:500}.logo{align-items:center;gap:10px;font-size:1.2rem;font-weight:800;display:inline-flex;color:var(--text)!important;text-decoration:none!important}.site-footer{border-top:1px solid var(--border);background:var(--bg-soft);margin-top:72px;padding:40px 0 20px}.footer-grid{grid-template-columns:2fr 1fr 1fr;gap:28px;display:grid}.footer-grid nav{flex-direction:column;gap:6px;display:flex}.footer-grid nav a{color:var(--muted)}.copyright{margin-top:28px}.breadcrumbs{color:var(--muted);margin-bottom:18px}.breadcrumbs a{color:var(--muted)}.hero{background:radial-gradient(1200px 400px at 50% -10%, var(--accent-soft), transparent 70%);padding:88px 0 40px}.hero-inner{text-align:center;flex-direction:column;align-items:center;gap:14px;display:flex}.hero h1{max-width:18ch;margin:6px 0 4px}.hero .lead{margin:0 auto 10px}.hero-cta{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:6px;display:flex}.steps{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:0;padding:0;list-style:none;display:grid}.step-n{background:var(--accent-soft);width:34px;height:34px;color:var(--accent);border-radius:10px;place-items:center;margin-bottom:12px;font-weight:800;display:inline-grid}.faq details{border-bottom:1px solid var(--border);padding:14px 0}.faq summary{cursor:pointer;font-size:1.05rem;font-weight:600}.faq details p{color:var(--muted);margin:10px 0 0}.cta-band{text-align:center;margin-top:64px;padding:48px 24px}.cta-band h2{margin-top:0}.list{padding-left:1.3em}.list li{margin-bottom:8px}.prose h2{font-size:1.35rem}.chat-app{background:var(--bg-soft);flex-direction:column;height:100dvh;display:flex}.chat-top{background:var(--card);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:10px 18px;display:flex}.chat-top-right{align-items:center;gap:16px;display:flex}.conn{color:var(--muted);font-size:.85rem}.conn-chatting{color:#16a34a;font-weight:600}.conn-offline{color:var(--danger)}.chat-main{flex:1;padding:20px;position:relative;overflow-y:auto}.welcome{flex-direction:column;gap:12px;max-width:560px;margin:6vh auto 0;display:flex}.welcome h1{margin:0;font-size:1.9rem}.label{font-size:.95rem;font-weight:600}.chips-input{border:1px solid var(--border);background:var(--bg);cursor:text;border-radius:10px;flex-wrap:wrap;align-items:center;gap:6px;min-height:48px;padding:7px 10px;display:flex}.chips-input:focus-within{border-color:var(--accent)}.chips-input input{min-width:140px;color:var(--text);font:inherit;background:0 0;border:0;outline:0;flex:1;padding:4px}.messages{flex-direction:column;gap:4px;max-width:820px;margin:0 auto;display:flex}.msg{overflow-wrap:anywhere;padding:3px 0}.msg p{white-space:pre-wrap;margin:0;display:inline}.msg .who{margin-right:8px;font-weight:700}.msg .who .flag{vertical-align:-2px;border-radius:2px;margin-left:6px;box-shadow:0 0 0 1px #00000014}.msg-you .who{color:var(--you)}.msg-stranger .who{color:var(--stranger)}.msg-system{color:var(--muted);padding:6px 0;font-size:.92rem;font-style:italic}.typing{color:var(--muted);padding:4px 0;font-size:.88rem}.ended-actions{flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;display:flex}.searching{gap:6px;padding:10px 0;display:flex}.searching span{background:var(--accent);border-radius:50%;width:9px;height:9px;animation:1.1s ease-in-out infinite bounce}.searching span:nth-child(2){animation-delay:.15s}.searching span:nth-child(3){animation-delay:.3s}@keyframes bounce{0%,80%,to{opacity:.4;transform:scale(.5)}40%{opacity:1;transform:scale(1)}}.report{flex-direction:column;gap:12px;max-width:520px;margin:16px auto 0;display:flex;position:sticky;bottom:0}.report-reasons{flex-wrap:wrap;gap:8px;display:flex}.chat-bar{padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:var(--card);border-top:1px solid var(--border);align-items:flex-end;gap:10px;display:flex}.chat-bar textarea{resize:none;border:1px solid var(--border);background:var(--bg);min-height:46px;max-height:140px;color:var(--text);font:inherit;border-radius:10px;flex:1;padding:12px 14px}.chat-bar textarea:focus{border-color:var(--accent);outline:none}.chat-bar .btn{height:46px}.btn-skip{min-width:110px}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@media (max-width:720px){.nav nav a:not(.btn){display:none}.footer-grid{grid-template-columns:1fr}.conn{display:none}.btn-skip{min-width:0}.btn-skip kbd{display:none}.chat-main{padding:14px}.welcome{margin-top:2vh}}