.tc-chat{--chat-ink:#17262c;--chat-accent:#a75f20;position:fixed;right:24px;bottom:24px;z-index:1100;font-family:'Hind Siliguri',Hind,'Noto Sans TC',Arial,sans-serif;font-size:15px;line-height:1.5;color:var(--chat-ink)}.tc-chat-go{--chat-ink:#15334d;--chat-accent:#177cba}.tc-chat [hidden],.tc-chat[hidden]{display:none!important}.tc-chat button,.tc-chat textarea{font:inherit}.tc-chat button{cursor:pointer}.tc-chat-launch{display:flex;align-items:center;gap:10px;border:0;border-radius:50px;background:var(--chat-ink);color:#fff;padding:14px 20px;box-shadow:0 5px 24px #0002}.tc-chat-launch svg{width:24px;height:24px}.tc-chat-panel{position:absolute;bottom:68px;right:0;width:370px;max-height:calc(100dvh - 120px);display:flex;flex-direction:column;background:#fff;border:1px solid #dbe0e3;border-radius:18px;box-shadow:0 14px 60px #17262c33;overflow:hidden}.tc-chat-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;background:var(--chat-ink);color:#fff}.tc-chat-head strong{font-size:19px}.tc-chat-head span{display:block;font-size:12px;opacity:.8}.tc-chat-close{background:none;border:0;color:#fff;font-size:28px!important;padding:0 8px}.tc-chat-log{overflow-y:auto;overscroll-behavior:contain;padding:20px;min-height:100px;max-height:290px;flex:1}.tc-chat-message{padding:12px 14px;border-radius:12px;margin-bottom:12px;background:#f0f3f3;white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px}.tc-chat-message-user{background:var(--chat-ink);color:#fff;margin-left:30px}.tc-chat-message small{display:block;margin-bottom:5px;color:var(--chat-accent);font-size:11px}.tc-chat-message a{display:block;margin-top:10px;color:var(--chat-accent);font-weight:600;text-decoration:underline}.tc-chat-prompts{display:flex;gap:7px;flex-wrap:wrap;padding:0 20px 10px}.tc-chat-prompts button{background:#fff;border:1px solid #d2dadd;border-radius:20px;padding:6px 10px;color:var(--chat-ink);font-size:12px}.tc-chat-notice{font-size:11px;line-height:1.5;color:#65727a;margin:0;padding:0 20px 12px}.tc-chat-form{display:flex;gap:10px;padding:12px 15px;border-top:1px solid #e1e6e8}.tc-chat-form textarea{resize:none;flex:1;min-width:0;border:0;background:#fff;color:var(--chat-ink);padding:6px;font-size:14px}.tc-chat-form button{background:var(--chat-accent);color:#fff;border:0;border-radius:50%;width:40px;height:40px;flex:0 0 40px;font-size:23px}.tc-chat button:disabled{opacity:.5;cursor:wait}.tc-chat-foot{display:flex;justify-content:space-between;gap:15px;padding:0 20px 14px;font-size:12px}.tc-chat-foot button{border:0;background:none;padding:0;color:#65727a}.tc-chat-foot a{color:var(--chat-accent)}.tc-chat-status{margin:0;padding:0 20px 8px;color:#92531e;font-size:12px}.tc-chat-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.tc-chat :focus-visible{outline:2px solid #c87a2a;outline-offset:3px}@media(max-width:600px){.tc-chat{right:14px;bottom:calc(14px + env(safe-area-inset-bottom))}.tc-chat-panel{width:calc(100vw - 28px);max-height:calc(100dvh - 110px);bottom:62px}.tc-chat-launch{padding:12px 16px}.tc-chat-log{max-height:32dvh}}