.h-ai-root{position:fixed;z-index:150;right:22px;bottom:22px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif}
.h-ai-trigger{border:0;border-radius:24px;padding:12px 18px;font-weight:700;font-size:14px;color:#fff;background:linear-gradient(135deg,#355d9f,#6575d2);box-shadow:0 12px 28px rgba(24,60,115,.22);cursor:pointer}
.h-ai-trigger:hover{filter:brightness(1.08)}
.h-ai-panel{position:absolute;bottom:60px;right:0;width:min(400px,calc(100vw - 32px));height:min(590px,calc(100dvh - 115px));border:1px solid #d6e0ee;background:#fff;box-shadow:0 22px 60px rgba(27,53,88,.19);border-radius:18px;overflow:hidden;display:flex;flex-direction:column}
.h-ai-panel[hidden]{display:none}
.h-ai-header{display:flex;align-items:center;justify-content:space-between;gap:8px;background:#f4f7fc;border-bottom:1px solid #e4eaf3;padding:15px}
.h-ai-title{display:flex;flex-direction:column;gap:1px;flex:1}
.h-ai-title strong{font-size:15px;color:#1b3358}.h-ai-state{font-size:11px;color:#60728f}
.h-ai-plain-btn{border:1px solid #dce5f0;background:#fff;border-radius:9px;padding:7px 9px;font-size:12px;color:#314c73;cursor:pointer}
.h-ai-conversation{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:12px;padding:18px 15px;background:#fff}
.h-ai-intro{background:#f6f8fb;color:#365073;padding:15px;border-radius:14px;font-size:13px;line-height:1.65}
.h-ai-intro strong{font-size:14px}.h-ai-intro p{margin-top:7px}
.h-ai-message{font-size:13px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere;padding:10px 12px;border-radius:13px;max-width:92%;color:#22344b}
.h-ai-user{background:#dfeaff;align-self:flex-end;border-bottom-right-radius:4px}
.h-ai-assistant{background:#f0f4f9;align-self:flex-start;border-bottom-left-radius:4px}
.h-ai-error{background:#fff1f2;color:#a5243a;align-self:flex-start}
.h-ai-thinking{font-size:12px;color:#7185a0}
.h-ai-notice{font-size:11px;line-height:1.6;color:#75849b;background:#fafbfe;border-top:1px solid #edf1f5;padding:9px 14px}
.h-ai-form{display:flex;gap:8px;padding:10px 12px 14px;background:#fff}
.h-ai-input{flex:1;resize:none;padding:10px 11px;min-width:0;max-height:110px;border:1px solid #d9e2ec;border-radius:11px;font-size:13px;font-family:inherit;color:#22344b}
.h-ai-send{background:#315c9b;border:0;border-radius:10px;padding:0 17px;font-weight:700;color:#fff;cursor:pointer}
.h-ai-send:disabled{background:#b7c5d8;cursor:not-allowed}
@media(max-width:768px){.h-ai-root{bottom:14px;right:12px}.h-ai-panel{bottom:58px;max-height:calc(100dvh - 90px);height: min(570px, calc(100dvh - 90px))}}
@media print{.h-ai-root{display:none}}