:root{--p:#7c3aed;--bg:#f7f5ff;--card:#fff;--muted:#6b7280;--text:#111827;--line:#e5e7eb;--danger:#ef4444}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"PingFang SC",sans-serif;background:var(--bg);color:var(--text)}.hide{display:none!important}.hero{padding:28px 18px 22px;background:linear-gradient(135deg,var(--p),#111827);color:#fff}.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:24px}.logo{display:grid;place-items:center;width:38px;height:38px;border-radius:14px;background:rgba(255,255,255,.16)}.hero p{margin:10px 0 0;opacity:.88}.notice{margin-top:14px;padding:10px 12px;border-radius:12px;background:rgba(255,255,255,.12);font-size:14px}.wrap{max-width:960px;margin:0 auto;padding:22px 14px 80px}h2{font-size:18px;margin:18px 0 12px}.grid,.price-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}.card,.price{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:0 12px 30px rgba(17,24,39,.06)}.card h3,.price h3{margin:0 0 8px;font-size:18px}.card p,.price p{margin:0 0 14px;color:var(--muted);font-size:14px;line-height:1.55}.badge{display:inline-block;margin-bottom:10px;font-size:12px;padding:4px 8px;border-radius:999px;background:#ede9fe;color:#5b21b6}button{border:0;background:var(--p);color:#fff;border-radius:12px;padding:11px 15px;font-weight:800;cursor:pointer}button:active{transform:translateY(1px)}.secondary{background:#f3f4f6;color:#111827;border:1px solid var(--line)}.ghost{background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff}.danger{background:var(--danger)}.price .money{font-size:24px;font-weight:900;color:var(--p);margin:6px 0 12px}.rule{margin-top:22px;padding:14px;border-radius:16px;background:#fff;color:#6b7280;line-height:1.7}.chat-page{min-height:100vh;padding:0;background:#f3f4f6}.chat-shell{max-width:760px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;background:#fff}.chat-top{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px;background:linear-gradient(135deg,var(--p),#111827);color:#fff;position:sticky;top:0;z-index:2}.chat-top p{margin:3px 0 0;font-size:12px;opacity:.85}.messages{flex:1;padding:16px;overflow:auto;background:#f8fafc}.msg{margin:8px 0;display:flex}.msg .bubble{max-width:78%;padding:10px 12px;border-radius:16px;line-height:1.55;font-size:15px;box-shadow:0 3px 12px rgba(0,0,0,.04)}.msg.user{justify-content:flex-end}.msg.user .bubble{background:var(--p);color:#fff;border-bottom-right-radius:4px}.msg.admin .bubble{background:#fff;border:1px solid var(--line);border-bottom-left-radius:4px}.msg.system{justify-content:center}.msg.system .bubble{font-size:12px;background:#eef2ff;color:#4f46e5}.time{font-size:10px;opacity:.62;margin-top:4px}.chat-actions{display:flex;gap:8px;padding:8px 12px;border-top:1px solid var(--line)}.inputbar{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line);background:#fff}.inputbar input{flex:1;border:1px solid var(--line);border-radius:12px;padding:12px;font-size:16px;outline:none}.inputbar input:focus{border-color:var(--p)}@media(max-width:640px){.brand{font-size:21px}.wrap{padding-bottom:40px}.chat-shell{max-width:none}.chat-top{padding:12px}.chat-top button{padding:9px 10px}.msg .bubble{max-width:86%}}

.pay-mask{position:fixed;inset:0;background:rgba(17,24,39,.56);z-index:99;display:flex;align-items:center;justify-content:center;padding:20px}.pay-dialog{width:min(420px,100%);background:#fff;border-radius:22px;padding:22px;box-shadow:0 30px 80px rgba(0,0,0,.22)}.pay-dialog h3{margin:0 0 10px;font-size:20px}.pay-dialog p{margin:0 0 18px;color:#4b5563;line-height:1.7}.pay-dialog-actions{display:flex;gap:10px}.pay-dialog-actions button{flex:1}