:root{--ink:#183229;--paper:#f5f0e5;--green:#0c5b43;--lime:#c9e36f;--line:#d8d1c1;--white:#fffdf8}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 80% 10%,#dce8c8 0,transparent 28%),var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",sans-serif}.shell{width:min(1080px,calc(100% - 32px));margin:auto;padding:26px 0 48px}header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:18px}.brand{display:flex;align-items:center;gap:12px}.mark{width:42px;height:42px;border-radius:12px;background:var(--green);color:var(--lime);display:grid;place-items:center;font:700 22px Georgia}.brand h1,.brand p{margin:0}.brand h1{font-size:20px}.brand p{font-size:12px;color:#607068}.status{font-size:12px;border:1px solid var(--line);padding:7px 11px;border-radius:99px;background:#ffffff88}.hero{padding:64px 2px 34px;max-width:780px}.eyebrow{font:700 11px/1.4 Arial;letter-spacing:.17em;color:var(--green)}h2{font-size:clamp(38px,6vw,68px);letter-spacing:-.06em;line-height:1.05;margin:12px 0 18px}h2 em{font-family:STKaiti,KaiTi,serif;font-weight:400;color:var(--green)}.hero>p:not(.eyebrow){max-width:600px;color:#57675f;line-height:1.8}.suggestions{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px}.suggestions button{background:transparent;border:1px solid #aab6a7;border-radius:99px;padding:10px 14px;color:var(--ink);cursor:pointer}.suggestions button:hover{background:var(--lime);border-color:var(--lime)}.chat-card{background:var(--white);border:1px solid var(--line);border-radius:24px;box-shadow:0 22px 70px #21352b12;overflow:hidden}.messages{min-height:250px;max-height:520px;overflow:auto;padding:25px}.message{display:flex;gap:11px;margin:0 0 20px;align-items:flex-start}.message.user{justify-content:flex-end}.avatar{flex:0 0 30px;width:30px;height:30px;display:grid;place-items:center;border-radius:9px;background:var(--green);color:var(--lime);font:bold 14px Georgia}.bubble{max-width:78%;padding:14px 16px;background:#edf0e8;border-radius:4px 16px 16px;line-height:1.75;white-space:pre-wrap}.user .bubble{background:var(--green);color:white;border-radius:16px 4px 16px 16px}.sources{margin-top:10px;display:grid;gap:7px}.source{font-size:12px;padding:10px;border:1px solid #d7ddcf;border-radius:10px;background:#fff}.source strong{display:block;margin-bottom:3px}.source span{color:#68756e}.source .warning{color:#9b5b29}form{margin:0 20px;display:flex;gap:10px;align-items:flex-end;border:1px solid #b8c2b5;border-radius:17px;padding:10px 10px 10px 15px;background:white}textarea{width:100%;border:0;outline:0;resize:none;font:15px/1.55 inherit;max-height:130px}.send{width:40px;height:40px;border:0;border-radius:12px;background:var(--lime);color:var(--ink);font-size:22px;cursor:pointer}.send:disabled{opacity:.5}.notice{text-align:center;font-size:11px;color:#7c8981;margin:12px 10px 16px}@media(max-width:600px){.shell{width:min(100% - 20px,1080px);padding-top:14px}.hero{padding-top:40px}.status{display:none}.messages{padding:16px}.bubble{max-width:88%}form{margin:0 10px}}