:root{font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;color:#183c58;background:#edf6fb;font-synthesis:none;--ink:#183c58;--muted:#7191a8;--line:#dcebf2;--blue:#258cc6;--deep:#09263b;--surface:#fff}
*{box-sizing:border-box}body{min-height:100vh;margin:0;background:radial-gradient(circle at 90% 0,rgba(63,169,245,.13),transparent 29%),linear-gradient(180deg,#f5fbfe,#edf6fb 45%,#f6fafc);color:var(--ink)}
header{min-height:72px;padding:12px max(20px,calc((100vw - 1080px)/2));display:flex;align-items:center;justify-content:space-between;gap:18px;background:linear-gradient(110deg,#09263b,#103b59);color:#fff;box-shadow:0 6px 24px #123a5419}
header h1{display:flex;align-items:center;gap:11px;margin:0;font-size:18px;font-weight:700;letter-spacing:.2px}header h1:before{content:"Y";display:grid;place-items:center;width:35px;height:35px;border:1px solid #83d9ff99;border-radius:11px;color:#a6e7ff;background:#53c7ff1c;font-size:16px;font-weight:800}
header a{color:#c0e7f7;text-decoration:none;font-size:13px}header a:hover{color:#fff}header .nav{display:flex;align-items:center;gap:12px}header .nav span{color:#c6dce8;font-size:13px}
main{width:min(1080px,100%);margin:auto;padding:27px 22px 58px}h1,h2,h3,p{overflow-wrap:anywhere}h2{margin:0 0 15px;color:#214b68;font-size:18px}h3{margin:8px 0;color:#204a66;font-size:16px}
.card,main>section{margin:15px 0;padding:21px;border:1px solid rgba(41,130,181,.16);border-radius:15px;background:rgba(255,255,255,.96);box-shadow:0 12px 32px #05233a0b}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(245px,1fr));gap:14px}.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.nav{display:flex;align-items:center;gap:15px;flex-wrap:wrap}
label{display:block;margin:13px 0 6px;color:#496f87;font-size:13px;font-weight:650}input,select,button,textarea{font:inherit;border-radius:9px}input,select,textarea{width:100%;min-height:42px;padding:10px 12px;border:1px solid #d3e4ed;background:#fafdff;color:#244d68;outline:none;transition:border-color .16s,box-shadow .16s}textarea{min-height:110px;resize:vertical}input:focus,select:focus,textarea:focus{border-color:#48a9d0;box-shadow:0 0 0 3px #48a9d01c}
button,.button{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:9px 15px;border:1px solid #2589ad;border-radius:9px;background:linear-gradient(110deg,#258ab3,#258a9f);color:#fff;font-size:13px;font-weight:650;text-decoration:none;cursor:pointer;transition:transform .16s,box-shadow .16s,opacity .16s}button:hover,.button:hover{transform:translateY(-1px);box-shadow:0 7px 16px #1d5d7e22}button.secondary,.button.secondary{border-color:#d4e5ed;background:#f5fafc;color:#477089}button.danger{border-color:#d87979;background:#fff1f1;color:#ad4f54}button:disabled{opacity:.48;cursor:not-allowed;transform:none;box-shadow:none}
a{color:#2587b4}small,.hint{color:var(--muted)}.hint{font-size:13px;line-height:1.65}.status{min-height:1.5em;color:#bd7542;font-size:13px}.badge{display:inline-flex;align-items:center;padding:5px 9px;border:1px solid #d9ebf4;border-radius:999px;background:#edf8fc;color:#3281a1;font-size:11px}.badge.online{border-color:#c6ecdb;background:#effaf4;color:#279469}
.robot-card{display:block;min-height:135px;color:inherit;text-decoration:none;transition:transform .18s,border-color .18s,box-shadow .18s}.robot-card:hover{transform:translateY(-2px);border-color:#8bcbe4;box-shadow:0 14px 30px #0b668016}.robot-card h2{margin-bottom:9px}.robot-card p{margin:6px 0}.messages{display:grid;gap:10px;max-height:440px;overflow:auto;padding:4px}.message{padding:12px 14px;border:1px solid #e0edf3;border-radius:12px;background:#f7fbfd;color:#31556c;line-height:1.55}.message.user{margin-left:10%;border-color:#d5eafb;background:#edf7ff}.message small{display:block;margin-bottom:5px;color:#7894a7;font-size:11px}.message span{white-space:pre-wrap;overflow-wrap:anywhere}code{overflow-wrap:anywhere;padding:3px 6px;border-radius:5px;background:#f0f6f9;color:#315a70;font-size:.92em}ol{padding-left:22px;color:#496b82;line-height:1.8}strong{color:#24516c}
.auth-page{display:flex;min-height:100vh;flex-direction:column;background:radial-gradient(circle at 75% 20%,#b9e8f357,transparent 29%),linear-gradient(145deg,#eaf5fa,#f7fbfd 55%,#e6f4f7)}.auth-brand{width:min(1080px,100%);margin:0 auto;padding:28px 24px 0}.auth-brand-lockup{display:inline-flex;align-items:center;gap:11px;color:#153b56;text-decoration:none}.auth-brand-mark{display:grid;place-items:center;width:40px;height:40px;border:1px solid #91d5ef;border-radius:13px;color:#17789d;background:#e4f7fc;font-size:18px;font-weight:800}.auth-brand-copy strong{display:block;font-size:15px}.auth-brand-copy small{display:block;margin-top:3px;color:#7191a8;font-size:9px;letter-spacing:1.7px}.auth-main{display:grid;flex:1;place-items:center;padding:26px 18px 56px}.auth-card{width:min(440px,100%);padding:32px;border:1px solid #d6e9f1;border-radius:20px;background:#ffffffed;box-shadow:0 24px 60px #0a385016}.auth-card h1{margin:5px 0 7px;color:#183c58;font-size:25px}.auth-card h2{margin:0;color:#183c58;font-size:25px}.auth-card .auth-kicker{margin:0 0 8px;color:#399abc;font-size:10px;font-weight:750;letter-spacing:1.6px}.auth-card .auth-description{margin:0 0 21px;color:#7995a8;font-size:13px;line-height:1.6}.auth-card .auth-submit{width:100%;margin-top:18px}.auth-switch{display:block;margin-top:17px;text-align:center;color:#2888b2;text-decoration:none;font-size:13px}.auth-switch:hover{text-decoration:underline}.auth-status{margin:11px 0 0;text-align:center}
@media(max-width:640px){header{min-height:62px;padding:11px 15px}header h1{font-size:16px}header h1:before{width:32px;height:32px}header .nav{gap:8px}main{padding:18px 14px 36px}.card,main>section{padding:17px;border-radius:13px}.grid{grid-template-columns:1fr}.auth-brand{padding:19px 18px 0}.auth-main{padding:18px 14px 35px}.auth-card{padding:24px 20px;border-radius:16px}}