:root{--sidebar-width: 280px;--sidebar-width-large: 320px;--toolbar-height: 52px;--color-bg: #ffffff;--color-bg-secondary: #ffffff;--color-bg-hover: rgba(0, 0, 0, .04);--color-bg-content: #f8f9fa;--color-border: #e0e0e0;--color-border-light: #eaeaea;--color-text: #1a1a1a;--color-text-secondary: #888;--color-text-muted: #aaa;--color-accent: #4a4540;--color-accent-hover: #3a3530;--color-accent-light: #5c5650;--color-file-selected: #f5f6f8;--color-file-selected-text: #1a1a1a;--shadow-card: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-card-hover: 0 4px 12px rgba(0, 0, 0, .08)}@media(min-width:1400px){:root{--sidebar-width: var(--sidebar-width-large)}.file-list{padding:12px}.file-item{padding:12px 18px}}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%;width:100%}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;line-height:1.5;color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{font-family:inherit;font-size:inherit;border:none;background:transparent;cursor:pointer;color:inherit;padding:0;margin:0}input{font-family:inherit;font-size:inherit}a{color:var(--color-accent);text-decoration:none}a:hover{color:var(--color-accent-hover)}.app{display:flex;flex-direction:column;height:100vh;width:100%;overflow:hidden}.app-layout{display:flex;flex:1;height:100vh;overflow:hidden}.main-column{display:flex;flex-direction:column;flex:1;min-width:0;overflow:hidden}.main-content{display:flex;flex:1;overflow:hidden}.toolbar{display:flex;align-items:center;justify-content:space-between;height:var(--toolbar-height);padding:0 12px;background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border-light);flex-shrink:0}.toolbar-left,.toolbar-right{display:flex;align-items:center;gap:2px}.toolbar-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:8px;transition:background-color .15s;color:#666}.toolbar-btn:hover{background-color:var(--color-bg-hover);color:#333}.toolbar-btn svg{width:18px;height:18px;stroke-width:1.5}.main-layout{display:flex;flex:1;overflow:hidden}.sidebar{width:var(--sidebar-width);background:var(--color-bg-secondary);border-right:1px solid var(--color-border-light);display:flex;flex-direction:column;flex-shrink:0;transition:width .2s ease,min-width .2s ease;height:100vh;min-width:var(--sidebar-width)}.sidebar.collapsed{width:0;min-width:0;border-right:none;overflow:hidden}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:0 16px;height:var(--toolbar-height);border-bottom:1px solid var(--color-border-light);flex-shrink:0}.sidebar-title{font-weight:600;font-size:13px;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.5px}.sidebar-add-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:6px;transition:background-color .15s;color:#666}.sidebar-add-btn:hover{background-color:var(--color-bg-hover);color:#333}.sidebar-add-btn svg{width:18px;height:18px;stroke-width:1.5}.file-list{flex:1;overflow-y:auto;padding:8px}.file-item{display:flex;align-items:center;gap:10px;padding:10px 16px;border-radius:8px;cursor:pointer;transition:background-color .15s;margin-bottom:2px}.file-item:hover{background-color:var(--color-bg-hover)}.file-item.active{background-color:var(--color-file-selected);color:var(--color-file-selected-text)}.file-item.active .file-meta{color:var(--color-text-secondary)}.file-icon{flex-shrink:0;color:var(--color-text-secondary)}.file-icon svg{width:18px;height:18px;stroke-width:1.5}.file-info{flex:1;min-width:0}.file-name{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-meta{font-size:12px;color:var(--color-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-delete{opacity:0;transition:opacity .15s;padding:4px;border-radius:4px;color:#999}.file-item:hover .file-delete{opacity:1}.file-delete:hover{background-color:#ff00001a;color:#e53935}.file-delete svg{width:14px;height:14px}.content{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--color-bg-content)}.content-toolbar{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;gap:8px;flex-wrap:wrap}.content-toolbar-left,.content-toolbar-right{display:flex;align-items:center;gap:8px}.content-file-icon{color:var(--color-text-secondary);display:flex;align-items:center}.content-file-icon svg{width:16px;height:16px;stroke-width:1.5}.content-btn{display:flex;align-items:center;gap:4px;padding:5px 10px;border-radius:6px;font-size:13px;font-weight:500;transition:all .15s;background:transparent;color:var(--color-text-secondary)}.content-btn:hover{background-color:var(--color-bg-hover);color:var(--color-text)}.content-btn svg{width:15px;height:15px;stroke-width:1.75}.content-btn.primary{background:var(--color-accent);color:#fff}.content-btn.primary:hover{background:var(--color-accent-hover)}.toggle-switch-wrapper{display:flex;align-items:center;gap:10px;cursor:pointer;-webkit-user-select:none;user-select:none}.toggle-switch-state{font-size:12px;color:var(--color-text-muted);min-width:55px;text-align:right}.toggle-switch{display:flex;align-items:center;cursor:pointer;-webkit-user-select:none;user-select:none}.toggle-switch-track{width:36px;height:18px;background:#d0d0d0;border-radius:9px;position:relative;transition:background-color .2s}.toggle-switch.active .toggle-switch-track{background:var(--color-accent)}.toggle-switch-thumb{position:absolute;top:2px;left:2px;width:14px;height:14px;background:#fff;border-radius:50%;box-shadow:0 1px 2px #0003;transition:transform .2s}.toggle-switch.active .toggle-switch-thumb{transform:translate(18px)}.toggle-switch-label{font-size:13px;font-weight:500;color:var(--color-text-secondary);white-space:nowrap}.toggle-switch.active .toggle-switch-label{color:var(--color-text)}.json-viewer{flex:1;padding:16px 24px 24px;overflow:auto;display:flex;flex-direction:column;align-items:center;gap:16px}.content-card-body{padding:24px 24px 24px 48px;border:1px solid var(--color-border-light)}.content-card-body.dotted{background-image:radial-gradient(circle,var(--color-border-light) 1px,transparent 1px);background-size:16px 16px}.content-card-help-btn{display:flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:6px;color:var(--color-accent-light);transition:all .15s}.content-card-help-btn:hover{background:var(--color-bg-hover);color:var(--color-accent)}.content-card-help-btn svg{width:12px;height:12px}.json-viewer-inner{min-width:300px;max-width:100%;padding-left:32px}.settings-card-body{padding:0!important;border-radius:8px;overflow:hidden;margin:0 -1px -1px;border:1px solid var(--color-border-light)}.setting-item{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--color-border-light)}.setting-item:last-child{border-bottom:none}.setting-item-left{flex:1;min-width:0}.setting-item-title{font-size:14px;font-weight:500;color:var(--color-text);display:flex;align-items:center;gap:6px}.setting-item-help{display:flex;align-items:center;color:var(--color-text-muted);padding:2px;border-radius:4px;transition:color .15s}.setting-item-help:hover{color:var(--color-text-secondary)}.setting-item-help svg{width:14px;height:14px}.setting-item-description{font-size:12px;color:var(--color-text-secondary);margin-top:2px}.setting-item-right{flex-shrink:0;margin-left:16px}.setting-action-btn{display:flex;align-items:center;gap:6px;padding:6px 12px;border-radius:6px;font-size:13px;font-weight:500;background:var(--color-bg-content);color:var(--color-text-secondary);transition:all .15s}.setting-action-btn:hover{background:var(--color-bg-hover);color:var(--color-text)}.setting-action-btn svg{width:14px;height:14px}.setting-action-btn.primary{background:var(--color-accent);color:#fff}.setting-action-btn.primary:hover{background:var(--color-accent-hover)}.share-link-preview{display:flex;gap:8px;padding:12px 20px;background:var(--color-bg-content);border-top:1px solid var(--color-border-light)}.share-link-input{flex:1;padding:8px 12px;border:1px solid var(--color-border-light);border-radius:6px;font-size:12px;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Monaco,monospace;color:var(--color-text-secondary);background:var(--color-bg-secondary)}.share-link-input:focus{outline:none;border-color:var(--color-accent)}.share-link-copy{display:flex;align-items:center;justify-content:center;padding:8px;border-radius:6px;background:var(--color-bg-secondary);border:1px solid var(--color-border-light);color:var(--color-text-secondary);transition:all .15s}.share-link-copy:hover{background:var(--color-bg-hover);color:var(--color-text)}.share-link-copy svg{width:16px;height:16px}.file-metadata{margin-top:16px;display:flex;flex-wrap:wrap;gap:16px;justify-content:center;font-size:12px;color:var(--color-text-muted)}.file-metadata span{display:flex;align-items:center;gap:4px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--color-text-secondary);text-align:center;padding:40px}.empty-state svg{width:64px;height:64px;margin-bottom:16px;opacity:.3;stroke-width:1}.empty-state h2{margin:0 0 8px;font-size:18px;font-weight:600;color:var(--color-text)}.empty-state p{margin:0;font-size:14px}.modal-overlay{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.modal{background:var(--color-bg);border-radius:16px;max-width:500px;width:100%;max-height:80vh;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 20px 60px #0003}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--color-border-light)}.modal-header h2{margin:0;font-size:16px;font-weight:600}.modal-close{padding:6px;border-radius:8px;transition:background-color .15s;color:#888}.modal-close:hover{background:var(--color-bg-hover);color:#333}.modal-close svg{width:18px;height:18px}.modal-body{padding:24px;overflow-y:auto}.modal-body h3{margin:0 0 8px;font-size:14px;font-weight:600}.modal-body p{margin:0 0 16px;color:var(--color-text-secondary);font-size:14px;line-height:1.6}.modal-body ul{margin:0 0 16px;padding-left:20px;color:var(--color-text-secondary);font-size:14px;line-height:1.8}.modal-body code{background:var(--color-bg-content);padding:2px 6px;border-radius:4px;font-size:13px}.confirm-modal .modal-body p{margin:0;font-size:15px;color:var(--color-text);line-height:1.5}.modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:16px 24px;border-top:1px solid var(--color-border-light)}.modal-btn{padding:8px 16px;border-radius:8px;font-size:13px;font-weight:500;transition:all .15s;background:var(--color-bg-hover);color:var(--color-text)}.modal-btn:hover{background:var(--color-border)}.modal-btn.danger{background:#e53935;color:#fff}.modal-btn.danger:hover{background:#c62828}.modal-btn.primary{background:var(--color-accent);color:#fff}.modal-btn.primary:hover{background:var(--color-accent-hover)}.modal-btn.primary:disabled{background:var(--color-border);color:var(--color-text-muted);cursor:not-allowed}.create-file-modal{max-width:540px}.create-file-cards{display:flex;gap:12px;margin-bottom:20px}.create-file-card{flex:1;display:flex;align-items:center;gap:12px;padding:16px;background:var(--color-bg-content);border:1px solid var(--color-border-light);border-radius:12px;cursor:pointer;transition:all .15s;text-align:left}.create-file-card:hover{border-color:var(--color-accent);background:#fff;box-shadow:0 2px 8px #4a6cf71a}.create-file-card-icon{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:#fff;border-radius:10px;flex-shrink:0}.create-file-card-icon svg{width:22px;height:22px;color:var(--color-accent)}.create-file-braces{font-size:20px;font-weight:700;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Monaco,monospace;color:#1a1a1a}.create-file-card-text{flex:1;min-width:0}.create-file-card-title{font-weight:600;font-size:14px;color:var(--color-text);margin-bottom:2px}.create-file-card-desc{font-size:12px;color:var(--color-text-secondary)}.create-file-divider{display:flex;align-items:center;gap:16px;margin-bottom:16px}.create-file-divider:before,.create-file-divider:after{content:"";flex:1;height:1px;background:var(--color-border-light)}.create-file-divider span{font-size:12px;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.5px}.create-file-input-wrapper{position:relative}.create-file-textarea{width:100%;padding:12px 14px;border:1px solid var(--color-border-light);border-radius:10px;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Monaco,monospace;font-size:13px;line-height:1.5;resize:vertical;background:var(--color-bg-content);color:var(--color-text);transition:border-color .15s,box-shadow .15s}.create-file-textarea:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px #4a6cf71a}.create-file-textarea.error{border-color:#e53935}.create-file-textarea.error:focus{box-shadow:0 0 0 3px #e539351a}.create-file-textarea::placeholder{color:var(--color-text-muted)}.create-file-error{margin-top:8px;font-size:12px;color:#e53935}overflow: visible; .toast{position:fixed;bottom:24px;right:24px;background:var(--color-text);color:var(--color-bg);padding:12px 20px;border-radius:10px;box-shadow:0 4px 20px #00000026;z-index:1001;animation:slideIn .2s ease;font-size:13px;font-weight:500}@keyframes slideIn{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.main-card{width:100%;max-width:900px;border:1px solid var(--color-border);border-radius:12px}.main-card.collapsed{border-radius:12px}.main-card-header{display:flex;align-items:center;justify-content:space-between;padding:16px 16px 16px 14px;background:var(--color-bg-content);border-radius:12px 12px 0 0}.main-card.collapsed .main-card-header{border-bottom:none;border-radius:12px}.main-card-title{font-size:12px;font-weight:600;color:var(--color-text);text-transform:uppercase;letter-spacing:.5px}.main-card-header-right{display:flex;align-items:center;gap:4px;margin:-4px 0}.main-card-collapse-btn{display:flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:6px;color:var(--color-text-muted);transition:all .15s}.main-card-collapse-btn:hover{background:var(--color-bg-hover);color:var(--color-text-secondary)}.main-card-collapse-btn svg{width:14px;height:14px}.main-card-body{background:var(--color-bg-secondary);padding:24px;min-height:150px;border-radius:8px;box-sizing:border-box;margin:0 -1px}.main-card-footer{padding:12px 24px;background:var(--color-bg-content);border-top:1px solid var(--color-border-light);border-radius:0 0 8px 8px;margin:0 -1px -1px}.share-modal{max-width:600px}.share-modal .modal-body{font-size:14px;line-height:1.6}.share-format{margin-bottom:20px;padding:16px;background:var(--color-bg-content);border-radius:8px}.share-format h4{margin:0 0 8px;font-size:13px;font-weight:600;color:var(--color-text)}.share-code{display:block;padding:10px 12px;background:var(--color-bg-secondary);border-radius:6px;font-size:12px;font-family:SF Mono,Monaco,Inconsolata,Roboto Mono,monospace;color:var(--color-accent);word-break:break-all;overflow-x:auto}.share-code-wrap{white-space:pre-wrap;word-wrap:break-word}.share-desc{margin:8px 0 0!important;font-size:13px;color:var(--color-text-secondary)}.share-desc code{background:var(--color-bg-secondary);padding:1px 5px;border-radius:3px;font-size:12px}.share-example{margin:16px 0;padding:16px;background:var(--color-bg-content);border-radius:8px}.share-example h4{margin:0 0 8px;font-size:13px;font-weight:600;color:var(--color-text)}.share-pre{margin:0;padding:12px;background:var(--color-bg-secondary);border-radius:6px;font-size:12px;font-family:SF Mono,Monaco,Inconsolata,Roboto Mono,monospace;color:var(--color-text);overflow-x:auto;white-space:pre-wrap;word-wrap:break-word}.share-modal .modal-body ul{margin:8px 0 16px;padding-left:20px}.share-modal .modal-body ul li{margin-bottom:4px}.share-modal .modal-body ul code{background:var(--color-bg-content);padding:1px 5px;border-radius:3px;font-size:12px}