:root{--bg-page-start:#DDE5F2;--bg-page-end:#EDF2FA;--bg-card:#FFFFFF;--bg-card-inner:#F5F7FC;--bg-sidebar:#EAEFF8;--bg-input:#FFFFFF;--bg-overlay:rgba(180,190,215,0.45);--primary:#6B5CE7;--primary-dark:#5046D4;--primary-light:#8B7FF0;--primary-gradient:linear-gradient(135deg,#6B5CE7,#8B7FF0);--accent-teal:#00C4B4;--accent-gold:#F5A623;--accent-red:#FF6B6B;--accent-blue:#4A9EFF;--accent-green:#52C41A;--text-primary:#1A1D3A;--text-secondary:#6B7299;--text-tertiary:#9AA0BC;--text-white:#FFFFFF;--text-link:#6B5CE7;--border-card:rgba(255,255,255,0.8);--border-default:#E2E8F5;--border-input:#D8DFEF;--shadow-card:0 4px 20px rgba(100,120,200,0.10);--shadow-card-lg:0 8px 32px rgba(80,100,180,0.14);--shadow-modal:0 16px 48px rgba(60,80,160,0.18);--shadow-btn:0 4px 12px rgba(107,92,231,0.35);--radius-xs:6px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-2xl:24px;--radius-pill:100px;--radius-full:50%;--spacing-1:4px;--spacing-2:8px;--spacing-3:12px;--spacing-4:16px;--spacing-5:20px;--spacing-6:24px;--spacing-8:32px;--spacing-10:40px}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:PingFang SC,Noto Sans SC,Microsoft YaHei,-apple-system,BlinkMacSystemFont,sans-serif;color:var(--text-primary);background:linear-gradient(180deg,var(--bg-page-start) 0,var(--bg-page-end) 100%);min-height:100vh;line-height:1.5}.card-glass{background:var(--bg-card);border-radius:var(--radius-lg);padding:var(--spacing-4);border:1px solid rgba(255,255,255,.8);box-shadow:0 4px 20px rgba(100,120,200,.1),inset 0 1px 0 rgba(255,255,255,.95),inset 1px 0 0 rgba(255,255,255,.6)}.card-frosted{background:rgba(255,255,255,.72);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.85);box-shadow:0 4px 16px rgba(100,120,200,.12),inset 0 1px 0 rgba(255,255,255,1),inset 1px 0 0 rgba(255,255,255,.75)}.chat-scroll::-webkit-scrollbar{width:4px}.chat-scroll::-webkit-scrollbar-track{background:transparent}.chat-scroll::-webkit-scrollbar-thumb{background:rgba(107,92,231,.2);border-radius:4px}.chat-scroll::-webkit-scrollbar-thumb:hover{background:rgba(107,92,231,.4)}@keyframes typingBounce{0%,80%,to{transform:translateY(0)}40%{transform:translateY(-6px)}}.typing-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--primary);animation:typingBounce 1.4s ease-in-out infinite}.typing-dot:first-child{animation-delay:0s}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes fadeInUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeInUp .25s ease-out forwards}.quick-chip:hover{background:#F0EEFF;border-color:#C5BCFF}@keyframes spin{to{transform:rotate(1turn)}}.loading-spinner{animation:spin .8s linear infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.quick-chips-scroll::-webkit-scrollbar{display:none}