:root{--navy:#1f3a5f;--navy-d:#16294a;--amber:#e6a23c;--amber-d:#c98a2a;--ink:#1e2530;--mute:#6b7583;--line:#dfe4ea;--bg:#f5f7fa;--card:#fff;--ok:#2e8b57;--warn:#b7791f;--bad:#c0392b}
*{box-sizing:border-box}[hidden]{display:none!important}html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55;font-size:16px}
a{color:var(--navy)}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.top{background:var(--navy);color:#fff}
.top-in{display:flex;align-items:center;justify-content:space-between;height:62px;gap:16px}
.brand{color:#fff;text-decoration:none;font-weight:700;font-size:22px;display:flex;align-items:center;gap:8px;letter-spacing:.2px}
.brand-mark{display:inline-flex;width:30px;height:30px;border-radius:7px;background:var(--amber);color:var(--navy);align-items:center;justify-content:center;font-size:17px}
.brand-ai{color:var(--amber);font-weight:500}
.nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.nav a{color:#e9eef5;text-decoration:none;padding:7px 10px;border-radius:6px;font-size:14.5px}
.nav a:hover{background:rgba(255,255,255,.1)}
.nav .nav-login{background:var(--amber);color:var(--navy);font-weight:600}
.nav .nav-panel{border:1px solid rgba(255,255,255,.35)}
details.lang{position:relative}details.lang summary{list-style:none;cursor:pointer;color:#e9eef5;padding:7px 10px;border-radius:6px;font-size:14px;border:1px solid rgba(255,255,255,.35)}
details.lang summary::-webkit-details-marker{display:none}
.lang-list{position:absolute;right:0;top:40px;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.12);z-index:20;min-width:150px;padding:6px}
.lang-list a{display:block;color:var(--ink);padding:7px 10px;border-radius:6px}.lang-list a.on{background:#eef2f7;font-weight:600}
main{padding:28px 0 60px}
.hero{padding:26px 0 8px}.hero h1{font-size:clamp(24px,3.6vw,36px);line-height:1.2;margin:0 0 10px;color:var(--navy)}
.hero p{font-size:17px;color:#3b4550;max-width:820px;margin:0 0 20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px;box-shadow:0 2px 10px rgba(20,35,60,.05)}
label{display:block;font-weight:600;font-size:14px;margin:0 0 6px;color:#2b3440}
textarea,input[type=text],input[type=email],select{width:100%;font:inherit;padding:12px 13px;border:1px solid #c9d1db;border-radius:8px;background:#fff;color:var(--ink)}
textarea{min-height:120px;resize:vertical}textarea:focus,input:focus,select:focus{outline:2px solid rgba(31,58,95,.25);border-color:var(--navy)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
@media(max-width:720px){.grid3{grid-template-columns:1fr}.top-in{height:auto;padding:10px 0;flex-direction:column;align-items:flex-start}.nav{justify-content:flex-start}}
.field{margin-top:14px}
.btn{display:inline-block;border:0;border-radius:8px;padding:13px 22px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none}
.btn-primary{background:var(--amber);color:var(--navy)}.btn-primary:hover{background:var(--amber-d)}
.btn-navy{background:var(--navy);color:#fff}.btn-navy:hover{background:var(--navy-d)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--navy)}.btn-sm{padding:8px 14px;font-size:14px}
.btn-ok{background:var(--ok);color:#fff}.btn-bad{background:var(--bad);color:#fff}
.actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:18px}
.note{color:var(--mute);font-size:14px}
.hint{margin-top:14px;padding:12px 14px;background:#fff8e8;border:1px solid #f3dfb3;border-radius:8px;font-size:14.5px}
.how{margin-top:34px}.how h2{font-size:20px;color:var(--navy);margin:0 0 12px}
.how ol{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:0;margin:0;list-style:none;counter-reset:s}
.how li{background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px;counter-increment:s;font-size:15px}
.how li::before{content:counter(s);display:inline-flex;width:26px;height:26px;border-radius:50%;background:var(--navy);color:#fff;align-items:center;justify-content:center;font-weight:700;margin-bottom:8px}
@media(max-width:720px){.how ol{grid-template-columns:1fr}}
.qbox{background:#eef2f7;border-left:4px solid var(--navy);border-radius:8px;padding:16px 18px;margin-bottom:18px}
.qbox .qtext{font-size:17px;font-weight:600;color:var(--navy);margin:0}.qbox .qmeta{color:var(--mute);font-size:13.5px;margin-top:6px}
.progress{display:flex;align-items:center;gap:12px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:10px}
.spin{width:22px;height:22px;border:3px solid #d8dee8;border-top-color:var(--amber);border-radius:50%;animation:sp 1s linear infinite;flex:none}
@keyframes sp{to{transform:rotate(360deg)}}
.answer{background:#fff;border:1px solid var(--line);border-left:4px solid var(--ok);border-radius:10px;padding:20px 22px}
.answer h2{margin:0 0 10px;font-size:18px;color:var(--ok)}.answer p{margin:0 0 12px}.answer ul{margin:0 0 12px;padding-left:22px}.answer li{margin:4px 0}
.answer a.cite{font-size:12px;vertical-align:super;text-decoration:none;font-weight:700;color:var(--navy)}
.answer.preview{position:relative;max-height:230px;overflow:hidden}
.answer.preview::after{content:"";position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(rgba(255,255,255,0),#fff)}
.gate{margin-top:-10px;background:var(--navy);color:#fff;border-radius:10px;padding:22px;text-align:center}
.gate h3{margin:0 0 6px;font-size:19px}.gate p{margin:0 0 14px;color:#dbe3ee}
.sources{margin-top:18px}.sources h3{font-size:16px;color:var(--navy);margin:0 0 8px}
.src{display:flex;gap:10px;padding:10px 12px;border:1px solid var(--line);background:#fff;border-radius:8px;margin-bottom:8px;font-size:14.5px}
.src .n{flex:none;width:24px;height:24px;border-radius:50%;background:var(--navy);color:#fff;font-size:12px;font-weight:700;display:inline-flex;align-items:center;justify-content:center}
.src .lab{font-weight:600}.src a{word-break:break-all;color:var(--mute);text-decoration:none;font-size:13px}
.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:12.5px;font-weight:600}
.b-pending{background:#fff3d6;color:#8a5a00}.b-approved{background:#e3f5ea;color:#1f6a3f}.b-corrected{background:#e3ecfa;color:#1f3a5f}.b-rejected{background:#fbe3e0;color:#8f2a1f}
.b-queued,.b-working{background:#eef2f7;color:#3b4550}.b-done{background:#e3f5ea;color:#1f6a3f}.b-error{background:#fbe3e0;color:#8f2a1f}
.disclaimer{margin-top:14px;color:var(--mute);font-size:13px}
.cta{margin-top:26px;background:linear-gradient(135deg,#1f3a5f,#2c5282);color:#fff;border-radius:12px;padding:24px}
.cta h2{margin:0 0 14px;font-size:21px}.cta-opts{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:600px){.cta-opts{grid-template-columns:1fr}}
.cta-opt{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.25);border-radius:10px;padding:16px}
.cta-opt .t{font-weight:700;font-size:16px}.cta-opt .p{color:var(--amber);font-weight:700;font-size:22px;margin:4px 0 10px}
.cta-opt form{display:flex;gap:8px}.cta-opt input{flex:1;padding:10px;border-radius:7px;border:0}
.cta .soon{color:#dbe3ee;font-size:14px;margin:0 0 12px}
.list{display:flex;flex-direction:column;gap:10px}
.row{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 16px;display:flex;justify-content:space-between;gap:14px;align-items:center}
.row a.q{color:var(--ink);text-decoration:none;font-weight:600}.row .meta{color:var(--mute);font-size:13px;margin-top:3px}
.login{max-width:460px;margin:30px auto}.login h1{color:var(--navy);margin:0 0 6px}
.err{background:#fbe3e0;color:#8f2a1f;padding:10px 12px;border-radius:8px;margin:12px 0;font-size:14.5px}
.ok{background:#e3f5ea;color:#1f6a3f;padding:10px 12px;border-radius:8px;margin:12px 0;font-size:14.5px}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:14px 0}.tabs a{padding:7px 12px;border-radius:999px;border:1px solid var(--line);background:#fff;text-decoration:none;font-size:14px}.tabs a.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.panel-q{white-space:pre-wrap;background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px;font-size:15px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}@media(max-width:800px){.two{grid-template-columns:1fr}}
.stats{display:flex;gap:14px;flex-wrap:wrap;margin:10px 0 0}.stat{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 14px;font-size:14px}.stat b{font-size:20px;color:var(--navy);display:block}
.foot{border-top:1px solid var(--line);color:var(--mute);font-size:13.5px;padding:18px 0}
.foot-in{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}.foot a{color:var(--mute)}
h1.page{color:var(--navy);font-size:26px;margin:0 0 16px}

.social{display:flex;flex-direction:column;gap:8px;margin:14px 0 18px}
.social a{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:8px;padding:10px 14px;text-decoration:none;color:var(--ink);font-weight:600;font-size:14.5px;background:#fff}
.social a:hover{background:#f5f7fa}.social a.off{opacity:.55}
.social .ic{width:22px;height:22px;flex:none}
.or{display:flex;align-items:center;gap:10px;color:var(--mute);font-size:13px;margin:6px 0 10px}.or::before,.or::after{content:"";flex:1;height:1px;background:var(--line)}