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600px){.header-content[data-v-4c8507c6]{flex-direction:row;justify-content:space-between}h1[data-v-4c8507c6]{font-size:1.5rem}.tree-clear-btn[data-v-4c8507c6]{min-height:36px}.copy-history-header[data-v-4c8507c6]{flex-direction:column}.copy-history-actions[data-v-4c8507c6],.copy-history-item-actions[data-v-4c8507c6]{flex-wrap:wrap}.history-toggle[data-v-4c8507c6]{padding:0 12px}}:root{--color-brand: #3b82f6;--color-brand-rgb: 59, 130, 246;--color-brand-hover: #2563eb;--color-success: #10b981;--bg-body: #f8fafc;--bg-card: #ffffff;--bg-item: #f1f5f9;--bg-item-hover: #e2e8f0;--text-main: #0f172a;--text-secondary: #64748b;--text-heading: #1e293b;--border-color: #e2e8f0;--border-hover: #cbd5e1;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--radius-sm: 6px;--radius-md: 12px;--radius-lg: 16px;--radius-full: 9999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .3s cubic-bezier(.4, 0, .2, 1)}[data-theme=dark]{--bg-body: #0f172a;--bg-card: #1e293b;--bg-item: #334155;--bg-item-hover: #475569;--text-main: #f8fafc;--text-secondary: #94a3b8;--text-heading: #ffffff;--border-color: #334155;--border-hover: #64748b;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .3);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .4), 0 2px 4px -2px rgb(0 0 0 / .3);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .5), 0 4px 6px -4px rgb(0 0 0 / .4)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.5;color:var(--text-main);background-color:var(--bg-body);transition:background-color var(--transition-normal),color var(--transition-normal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{max-width:none;width:100%;margin:0;padding:40px}@media (max-width: 600px){#app{padding:20px 16px}}button{font-family:inherit;cursor:pointer;border:none;background:none;outline:none}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--text-secondary);border-radius:var(--radius-full);opacity:.5}::-webkit-scrollbar-thumb:hover{background:var(--text-main)}