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(width<=1200px){.expert-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=768px){.expert-grid{grid-template-columns:1fr}}:root{--pri:#7c3aed;--pri-hover:#6d28d9;--pri-soft:#f5f3ff;--pri-mid:#ede9fe;--pri-border:#ddd6fe;--ink:#1f2937;--ink-strong:#111827;--mute:#6b7280;--mute-soft:#9ca3af;--line:#e5e7eb;--canvas:#f5f5f7;--chat-canvas:#eceaf3;--price:#ef4444;--white:#fff;--green:#07c160;--green-hover:#06ad56;--nav-width:200px;--nav-collapsed:64px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--shadow-card:0 4px 20px #0000000d;--shadow-chat:0 18px 50px #311e5c14;--font:"Inter", "PingFang SC", "Microsoft YaHei", system-ui, 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