#ai-assistant-btn{position:fixed;bottom:24px;right:24px;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#58a6ff,#1f6feb);border:none;cursor:pointer;font-size:20px;box-shadow:0 4px 16px #58a6ff66;z-index:9990;display:flex;align-items:center;justify-content:center;transition:transform .2s,box-shadow .2s}#ai-assistant-btn:hover{transform:scale(1.1);box-shadow:0 6px 20px #58a6ff99}#ai-assistant-panel{position:fixed;bottom:84px;right:24px;width:460px;max-height:640px;background:var(--bg-secondary, #161b22);border:1px solid var(--border-color, #30363d);border-radius:12px;box-shadow:0 8px 32px #00000080;z-index:9989;display:flex;flex-direction:column;overflow:hidden;transition:opacity .2s,transform .2s}#ai-assistant-panel.hidden{opacity:0;pointer-events:none;transform:translateY(10px)}.ai-panel-header{padding:12px 16px;background:var(--bg-primary, #0d1117);border-bottom:1px solid var(--border-color, #30363d);display:flex;align-items:center;justify-content:space-between}.ai-panel-title{font-size:14px;font-weight:600;color:var(--text-primary, #c9d1d9);display:flex;align-items:center;gap:8px}.ai-panel-close{background:none;border:none;color:var(--text-secondary, #8b949e);cursor:pointer;font-size:16px;padding:2px 6px;border-radius:4px}.ai-panel-close:hover{color:var(--text-primary, #c9d1d9);background:var(--bg-tertiary, #21262d)}.ai-messages{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:10px;min-height:320px}.ai-messages::-webkit-scrollbar{width:4px}.ai-messages::-webkit-scrollbar-track{background:transparent}.ai-messages::-webkit-scrollbar-thumb{background:var(--border-color, #30363d);border-radius:2px}.ai-msg{max-width:85%;padding:8px 12px;border-radius:10px;font-size:13px;line-height:1.5;white-space:pre-wrap;word-break:break-word}.ai-msg.bot{background:var(--bg-tertiary, #21262d);color:var(--text-primary, #c9d1d9);align-self:flex-start;border-radius:10px 10px 10px 2px}.ai-msg.user{background:linear-gradient(135deg,#1f6feb,#388bfd);color:#fff;align-self:flex-end;border-radius:10px 10px 2px}.ai-msg.bot a{color:#58a6ff;text-decoration:none}.ai-msg.bot a:hover{text-decoration:underline}.ai-quick-btns{padding:8px 12px;display:flex;flex-wrap:wrap;gap:6px;border-top:1px solid var(--border-color-light, #21262d)}.ai-quick-btn{padding:4px 10px;background:var(--bg-tertiary, #21262d);border:1px solid var(--border-color, #30363d);border-radius:16px;color:var(--text-secondary, #8b949e);font-size:11px;cursor:pointer;white-space:nowrap;transition:all .15s}.ai-quick-btn:hover{background:var(--border-color, #30363d);color:var(--text-primary, #c9d1d9);border-color:#58a6ff}.ai-input-row{display:flex;gap:8px;padding:10px 12px;border-top:1px solid var(--border-color, #30363d);background:var(--bg-primary, #0d1117)}.ai-input{flex:1;background:var(--bg-tertiary, #21262d);border:1px solid var(--border-color, #30363d);border-radius:8px;color:var(--text-primary, #c9d1d9);font-size:13px;padding:7px 12px;outline:none;transition:border-color .15s}.ai-input:focus{border-color:#58a6ff}.ai-input::placeholder{color:var(--text-secondary, #8b949e)}.ai-send-btn{padding:7px 14px;background:#1f6feb;border:none;border-radius:8px;color:#fff;font-size:13px;cursor:pointer;transition:background .15s}.ai-send-btn:hover{background:#388bfd}@media (max-width: 480px){#ai-assistant-panel{right:8px;left:8px;width:auto;bottom:76px}}#ai-assistant-panel.ai-expanded{width:780px;max-height:85vh;bottom:20px;right:20px}#ai-assistant-panel.ai-expanded .ai-messages{min-height:500px}#ai-assistant-panel.ai-expanded .ai-msg{font-size:14px;max-width:78%}#ai-assistant-panel.ai-expanded .ai-input{font-size:14px}.ai-panel-expand{background:none;border:none;color:var(--text-secondary, #8b949e);cursor:pointer;font-size:15px;padding:2px 6px;border-radius:4px;margin-right:2px}.ai-panel-expand:hover{color:var(--text-primary, #c9d1d9);background:var(--bg-tertiary, #21262d)}@media (max-width: 820px){#ai-assistant-panel.ai-expanded{width:calc(100vw - 32px);right:16px;left:16px}}