:root{color:#202124;background:#fafafa;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(circle at top right,rgba(37,99,235,.05),transparent 360px),#fafafa}button,textarea{font:inherit}button{-webkit-tap-highlight-color:transparent}.app-shell{min-height:100vh}.home-page{width:min(760px,100%);margin:0 auto;padding:32px 22px 48px}.home-header{display:flex;align-items:center;gap:10px;color:#5f6368;font-size:14px;font-weight:650}.brand-avatar,.mini-avatar,.tool-icon,.message-avatar{display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}.brand-avatar{width:34px;height:34px;border:1px solid #eceff3;border-radius:50%;background:#fff;object-fit:cover;box-shadow:0 8px 22px #0f172a0a}.home-header p,.hero-copy p,.chat-title p{margin:0}.hero-copy{margin:44px 0 30px}.title-with-logo{display:flex;align-items:center;gap:16px}.title-with-logo img{width:clamp(48px,9vw,72px);height:clamp(48px,9vw,72px);border-radius:50%;object-fit:cover;border:1px solid #eceff3;box-shadow:0 12px 30px #0f172a14}.hero-copy h1{margin:0;color:#171717;font-size:clamp(32px,6vw,52px);line-height:1.05;letter-spacing:0}.hero-copy p{margin-top:14px;color:#6b7280;font-size:17px;line-height:1.7}.tool-list{display:grid;gap:16px}.tool-card{width:100%;min-height:114px;display:grid;grid-template-columns:58px 1fr auto;align-items:center;gap:18px;padding:22px;border:1px solid #eceff3;border-radius:16px;background:#fff;color:#202124;text-align:left;cursor:pointer;box-shadow:0 10px 28px #0f172a09;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.tool-card:hover:not(:disabled){transform:translateY(-2px);border-color:#d8dde5;box-shadow:0 14px 34px #0f172a12}.tool-icon{width:58px;height:58px;border-radius:14px;background:#f7f9fc;color:#2563eb}.tool-copy{min-width:0}.tool-copy strong{display:block;color:#292d32;font-size:24px;line-height:1.2;letter-spacing:0}.tool-copy small{display:block;margin-top:7px;color:#7a808a;font-size:14px;line-height:1.45}.card-arrow{color:#b0b7c3}.soon-badge{padding:7px 10px;border-radius:999px;background:#f3f4f6;color:#858b95;font-size:13px;white-space:nowrap}.tool-card.is-disabled{cursor:not-allowed;opacity:.68}.tool-card.is-disabled .tool-icon{color:#98a1ad}.chat-page{min-height:100vh;display:grid;grid-template-rows:auto 1fr auto auto;background:#fff}.chat-header{position:sticky;top:0;z-index:2;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;padding:16px 20px;border-bottom:1px solid #eef0f3;background:#ffffffeb;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.icon-button,.text-button,.send-button{border:0;cursor:pointer}.icon-button{width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;background:#f6f7f9;color:#343940}.text-button{padding:9px 12px;border-radius:10px;background:#f6f7f9;color:#676d76;font-size:14px}.chat-title{display:flex;align-items:center;gap:12px;min-width:0}.mini-avatar{width:44px;height:44px;border-radius:13px;background:#f4f7fb;color:#2563eb}.chat-title h1{margin:0;color:#202124;font-size:18px;line-height:1.25;letter-spacing:0}.chat-title p{margin-top:4px;color:#7a808a;font-size:13px;line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.message-list{width:min(820px,100%);margin:0 auto;padding:28px 20px 18px;overflow-y:auto}.message-row{display:flex;gap:12px;margin-bottom:18px}.message-row.user{flex-direction:row-reverse}.message-avatar{width:34px;height:34px;border-radius:11px;background:#f3f5f8;color:#626a75;font-size:13px;font-weight:700}.message-row.user .message-avatar{background:#202124;color:#fff}.message-bubble{max-width:min(620px,calc(100% - 46px));padding:13px 15px;border-radius:16px;background:#f6f7f9;color:#25282d;font-size:15px;line-height:1.72;white-space:pre-wrap}.message-row.user .message-bubble{background:#2563eb;color:#fff;border-top-right-radius:6px}.message-row.agent .message-bubble{border-top-left-radius:6px}.message-bubble.thinking{color:#79808a}.suggestion-strip{width:min(820px,100%);margin:0 auto;padding:0 20px 12px;display:flex;gap:10px;overflow-x:auto}.suggestion-strip button{flex:0 0 auto;max-width:280px;padding:9px 12px;border:1px solid #e5e8ed;border-radius:999px;background:#fff;color:#4f5661;font-size:14px;line-height:1.3;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.composer{width:min(820px,100%);margin:0 auto;padding:0 20px 22px;display:grid;grid-template-columns:1fr auto;gap:12px}.composer textarea{min-height:50px;max-height:130px;resize:vertical;border:1px solid #e2e6ec;border-radius:16px;padding:14px 16px;background:#fff;color:#202124;outline:none;line-height:1.45;box-shadow:0 8px 22px #0f172a0a}.composer textarea:focus{border-color:#9bb7f5}.send-button{width:50px;height:50px;align-self:end;border-radius:16px;background:#202124;color:#fff;display:inline-flex;align-items:center;justify-content:center}.send-button:disabled{cursor:not-allowed;background:#d5dae1}@media(max-width:620px){.home-page{padding:24px 16px 36px}.hero-copy{margin:34px 0 24px}.hero-copy h1{font-size:34px}.title-with-logo{gap:12px;align-items:flex-start}.tool-card{grid-template-columns:48px 1fr auto;min-height:96px;gap:14px;padding:17px;border-radius:14px}.tool-icon{width:48px;height:48px;border-radius:13px}.tool-copy strong{font-size:19px}.tool-copy small,.soon-badge{display:none}.chat-header{padding:12px 14px;gap:10px}.chat-title p{display:none}.chat-title h1{font-size:16px}.mini-avatar{display:none}.message-list{padding:20px 14px 14px}.message-bubble{font-size:14px}.suggestion-strip,.composer{padding-left:14px;padding-right:14px}}