:root{--ink:#111827;--muted:#6b7280;--paper:#fff;--panel:#fff;--line:#e5e7eb;--soft:#f3f4f6;--user:#f3f4f6;--accent:#111827;--danger:#dc2626;--shadow:0 8px 24px #11182714}*{box-sizing:border-box}html,body{width:100%;min-height:100%;overflow-x:hidden}html{height:100%}body{background:var(--paper);min-height:100%;color:var(--ink);margin:0;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}a{color:inherit}.chat-page{--header-height:74px;--bottom-height:118px;--keyboard-inset:0px;background:#fff;width:100%;max-width:760px;height:100dvh;min-height:100svh;margin:0 auto;position:relative;overflow:hidden}.chat-header{z-index:10;width:100%;max-width:760px;min-height:var(--header-height);padding:max(10px, env(safe-area-inset-top)) max(14px, env(safe-area-inset-right)) 10px max(14px, env(safe-area-inset-left));border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#fffffff5;justify-content:flex-start;align-items:center;gap:12px;margin:0 auto;display:flex;position:fixed;top:0;left:0;right:0}.brand-mark{background:0 0;border:0;border-radius:50%;flex:none;place-items:center;width:40px;height:40px;display:grid;overflow:hidden}.brand-logo{width:40px;height:40px;display:block}.header-title{flex:1;min-width:0}.header-title p{color:var(--muted);margin:0 0 2px;font-size:12px}.header-title h1{letter-spacing:0;text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:19px;font-weight:700;line-height:1.14;overflow:hidden}.header-promo-link{color:#9a3412;white-space:nowrap;background:#fff7ed;border:1px solid #fed7aa;border-radius:999px;flex:none;align-items:center;gap:4px;min-height:32px;padding:6px 9px;font-size:13px;font-weight:700;line-height:1;text-decoration:none;display:inline-flex}.header-promo-link:hover{background:#ffedd5;border-color:#fdba74}.messages{height:100%;padding:calc(var(--header-height) + 16px) max(14px, env(safe-area-inset-right)) calc(var(--bottom-height) + var(--keyboard-inset) + 18px) max(14px, env(safe-area-inset-left));overscroll-behavior:contain;overflow-y:auto}.message{white-space:pre-wrap;word-break:break-word;max-width:min(90%,600px);margin:0 0 12px;font-size:15px;line-height:1.58}.message.assistant{color:var(--ink);background:0 0;margin-right:auto;padding:4px 2px 10px}.message.user{border:1px solid var(--line);background:#fff;border-radius:16px;margin-left:auto;padding:10px 13px;box-shadow:0 1px 2px #1118270a}.chat-bottom{z-index:10;left:0;right:0;bottom:var(--keyboard-inset);width:100%;max-width:760px;min-height:var(--bottom-height);border-top:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#fffffffa;margin:0 auto;position:fixed;overflow:hidden}.suggestions{width:100%;padding:11px max(14px, env(safe-area-inset-right)) 10px max(14px, env(safe-area-inset-left));gap:8px;display:flex;overflow-x:auto}.suggestions button{border:1px solid var(--line);max-width:min(260px,72vw);color:var(--ink);text-overflow:ellipsis;white-space:nowrap;background:#fff;border-radius:999px;flex:none;padding:8px 11px;font-size:13px;overflow:hidden}.composer{width:100%;padding:0 max(14px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));grid-template-columns:minmax(0,1fr) 44px;gap:9px;display:grid}.composer textarea{resize:none;border:1px solid var(--line);width:100%;min-width:0;height:44px;max-height:44px;color:var(--ink);background:#fff;border-radius:22px;outline:none;padding:11px 13px;line-height:1.4;display:block}.icon-button{background:var(--accent);color:#fff;border:0;border-radius:50%;place-items:center;width:44px;height:44px;padding:0;line-height:0;display:grid}.icon-button svg{display:block;transform:translate(1px,-1px)}.icon-button:disabled{cursor:not-allowed;background:#c4c7cf}@media (max-width:760px),(pointer:coarse){.chat-page.is-composing{--bottom-height:57px}.chat-page.is-composing .chat-bottom{min-height:var(--bottom-height)}.chat-page.is-composing .suggestions{display:none}.chat-page.is-composing .composer{padding-top:7px;padding-bottom:6px}}.gate{place-items:center;min-height:100dvh;padding:20px;display:grid}.gate-panel{border:1px solid var(--line);background:var(--panel);width:min(100%,420px);box-shadow:var(--shadow);border-radius:14px;padding:24px}.gate-panel h1{margin:0 0 8px;font-size:26px}.gate-panel p{color:var(--muted);margin:0 0 20px;line-height:1.7}.field{gap:7px;margin-bottom:14px;display:grid}.field label{color:var(--muted);font-size:13px}.field input,.field textarea{border:1px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:10px;outline:none;padding:10px 11px}.field textarea{resize:vertical;min-height:126px;line-height:1.55}.primary{background:var(--accent);color:#fff;border:0;border-radius:10px;justify-content:center;align-items:center;gap:8px;min-height:42px;padding:0 15px;font-weight:700;display:inline-flex}.secondary{border:1px solid var(--line);min-height:40px;color:var(--ink);background:#fff;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:0 13px;display:inline-flex}.admin-page{background:#fff;min-height:100dvh;padding:24px}.admin-shell{width:min(1120px,100%);margin:0 auto}.admin-top{justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:20px;display:flex}.admin-top-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px;display:flex}.save-main{min-width:120px}.top-status{white-space:nowrap;min-width:auto}.admin-top h1{margin:0;font-size:clamp(28px,5vw,44px);font-weight:760;line-height:1.08}.admin-top p{max-width:640px;color:var(--muted);margin:10px 0 0;line-height:1.65}.admin-grid{grid-template-columns:minmax(0,.9fr) minmax(360px,1.1fr);gap:16px;display:grid}.panel{border:1px solid var(--line);background:#fff;border-radius:14px;padding:18px}.panel h2{margin:0 0 14px;font-size:20px}.wide-textarea textarea{min-height:370px}.row{grid-template-columns:1fr 1fr;gap:12px;display:grid}.actions{flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;display:flex}.meter{color:var(--muted);font-size:13px}.status{min-height:20px;color:var(--accent);font-size:14px}.error{color:var(--danger)}@media (max-width:840px){.admin-page{padding:18px 12px}.admin-top{display:block}.admin-top-actions{justify-content:flex-start;margin-top:14px}.admin-grid,.row{grid-template-columns:1fr}}