*{margin:0;padding:0;box-sizing:border-box}:root{--blue-primary: #0061D5;--blue-hover: #0050B5;--blue-light: #E8F0FE;--sidebar-bg: #0061D5;--sidebar-active: rgba(255,255,255,.15);--sidebar-hover: rgba(255,255,255,.1);--border-color: #E8E8E8;--text-primary: #222;--text-secondary: #6F6F6F;--text-light: #999;--bg-white: #fff;--bg-hover: #F5F7FA;--bg-selected: #E8F0FE;--danger: #D32F2F}html,body,#root{height:100%;font-family:Lato,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;color:var(--text-primary);background:var(--bg-white)}button{font-family:inherit;cursor:pointer;border:none;background:none;font-size:inherit}a{text-decoration:none;color:inherit}.app-layout{display:flex;height:100%}.sidebar{width:260px;min-width:260px;background:var(--sidebar-bg);color:#fff;display:flex;flex-direction:column;padding:0;overflow-y:auto}.sidebar-logo{display:flex;align-items:center;padding:20px 24px;gap:0}.logo-text{font-size:32px;font-weight:900;letter-spacing:-1px;margin-left:-2px}.sidebar-logo svg{display:none}.sidebar-nav{display:flex;flex-direction:column;padding:4px 12px}.sidebar-item{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:8px;color:#ffffffd9;font-size:14px;font-weight:400;transition:background .15s;text-align:left;width:100%}.sidebar-item:hover{background:var(--sidebar-hover)}.sidebar-item.active{background:var(--sidebar-active);color:#fff;font-weight:700}.sidebar-item svg{opacity:.9;flex-shrink:0}.sidebar-divider{height:1px;background:#ffffff26;margin:8px 24px}.sidebar-section{padding:8px 12px}.sidebar-section-header{display:flex;align-items:center;padding:10px 14px;font-size:13px;font-weight:700;color:#ffffffe6;cursor:pointer}.sidebar-hint{padding:4px 14px 8px;font-size:12px;color:#ffffff80;line-height:1.4}.sidebar-storage{margin-top:auto;padding:16px 24px 20px}.storage-text{display:flex;align-items:center;font-size:12px;color:#ffffffb3;margin-bottom:8px}.storage-bar{height:4px;background:#fff3;border-radius:2px;overflow:hidden}.storage-bar-fill{height:100%;background:#4fc3f7;border-radius:2px;transition:width .3s}.main-area{flex:1;display:flex;flex-direction:column;overflow:hidden}.topbar{display:flex;align-items:center;padding:12px 24px;gap:16px;border-bottom:1px solid var(--border-color);min-height:60px}.search-bar{display:flex;align-items:center;flex:1;max-width:560px;background:#f5f7fa;border:1px solid transparent;border-radius:24px;padding:8px 16px;gap:8px;transition:all .2s}.search-bar.focused{background:#fff;border-color:var(--blue-primary);box-shadow:0 0 0 3px #0061d51a}.search-icon{color:var(--text-light);flex-shrink:0}.search-bar input{flex:1;border:none;background:none;outline:none;font-size:14px;font-family:inherit;color:var(--text-primary)}.search-bar input::placeholder{color:var(--text-light)}.search-clear{display:flex;align-items:center;padding:2px;color:var(--text-light);border-radius:50%}.search-clear:hover{background:#e0e0e0}.search-filter{display:flex;align-items:center;padding:4px;color:var(--text-light);border-radius:4px;margin-left:4px}.search-filter:hover{color:var(--text-primary)}.topbar-actions{display:flex;align-items:center;gap:8px;margin-left:auto}.upgrade-btn{background:var(--blue-primary);color:#fff;padding:8px 20px;border-radius:20px;font-size:13px;font-weight:700;transition:background .15s}.upgrade-btn:hover{background:var(--blue-hover)}.topbar-icon-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;color:var(--text-secondary);transition:background .15s}.topbar-icon-btn:hover{background:var(--bg-hover)}.avatar{width:36px;height:36px;border-radius:50%;background:#6f6f6f;color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;cursor:pointer}.content-area{display:flex;flex:1;overflow:hidden}.file-area{flex:1;display:flex;flex-direction:column;overflow:hidden}.file-header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px 0}.file-header-actions{display:flex;align-items:center;gap:8px}.breadcrumbs{display:flex;align-items:center;gap:0}.breadcrumb-item{display:flex;align-items:center}.breadcrumb-title{font-size:22px;font-weight:700;color:var(--text-primary)}.breadcrumb-link{font-size:22px;font-weight:400;color:var(--text-secondary);cursor:pointer}.breadcrumb-link:hover{color:var(--blue-primary);text-decoration:underline}.breadcrumb-sep{margin:0 10px;color:var(--text-light);font-size:18px}.breadcrumb-dropdown{margin-left:6px;color:var(--text-secondary);cursor:pointer}.header-icon-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;color:var(--text-secondary);transition:background .15s}.header-icon-btn:hover{background:var(--bg-hover)}.share-button{display:flex;align-items:center;gap:4px;padding:8px 20px;background:var(--blue-primary);color:#fff;border-radius:20px;font-size:14px;font-weight:700;transition:background .15s}.share-button:hover{background:var(--blue-hover)}.share-button svg{fill:#fff}.new-button-wrapper{position:relative}.new-button{display:flex;align-items:center;gap:6px;padding:8px 16px;border:1px solid var(--border-color);border-radius:8px;font-size:14px;font-weight:700;color:var(--text-primary);background:#fff;transition:all .15s}.new-button:hover{background:var(--bg-hover);border-color:#ccc}.new-button .plus{font-size:18px;font-weight:400}.new-menu{position:absolute;top:calc(100% + 4px);right:0;background:#fff;border-radius:8px;box-shadow:0 4px 16px #00000026;min-width:200px;padding:6px 0;z-index:100}.new-menu-item{display:flex;align-items:center;gap:10px;padding:10px 16px;width:100%;font-size:14px;color:var(--text-primary);text-align:left}.new-menu-item:hover{background:var(--bg-hover)}.new-menu-item svg{color:var(--text-secondary)}.menu-divider{height:1px;background:var(--border-color);margin:4px 0}.folder-input-container{padding:12px 16px}.folder-input-container input{width:100%;padding:8px 12px;border:1px solid var(--border-color);border-radius:6px;font-size:14px;font-family:inherit;outline:none;margin-bottom:8px}.folder-input-container input:focus{border-color:var(--blue-primary);box-shadow:0 0 0 2px #0061d526}.folder-input-actions{display:flex;gap:8px;justify-content:flex-end}.btn-primary{background:var(--blue-primary);color:#fff;padding:6px 16px;border-radius:6px;font-size:13px;font-weight:700;transition:background .15s}.btn-primary:hover{background:var(--blue-hover)}.btn-secondary{background:#fff;color:var(--text-primary);padding:6px 16px;border-radius:6px;font-size:13px;font-weight:700;border:1px solid var(--border-color);transition:background .15s}.btn-secondary:hover{background:var(--bg-hover)}.file-list-container{flex:1;overflow-y:auto;padding:0 24px}.file-list-container.drag-over{background:var(--blue-light);border:2px dashed var(--blue-primary);border-radius:8px;margin:8px 24px;padding:0}.file-list-wrapper{width:100%}.file-table{width:100%;border-collapse:collapse}.file-table thead th{padding:12px 0;font-size:11px;font-weight:700;text-transform:uppercase;color:var(--text-secondary);border-bottom:1px solid var(--border-color);text-align:left;cursor:pointer;-webkit-user-select:none;user-select:none;letter-spacing:.5px}.file-table thead th:hover{color:var(--text-primary)}.col-name{width:auto}.col-updated{width:220px}.col-size{width:120px}.col-view{width:60px;text-align:right!important}.view-mode-toggle{display:flex;align-items:center;gap:2px}.view-mode-toggle button{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:6px;color:var(--text-light);transition:all .15s}.view-mode-toggle button:hover{color:var(--text-primary);background:var(--bg-hover)}.view-mode-toggle button.active{color:var(--blue-primary);background:var(--blue-light)}.sort-arrow{margin-left:4px;vertical-align:middle}.file-row{border-bottom:1px solid #F0F0F0;transition:background .1s;cursor:pointer}.file-row:hover{background:var(--bg-hover)}.file-row.selected{background:var(--bg-selected)}.file-row td{padding:10px 0;font-size:13px;color:var(--text-secondary)}.file-name-cell{display:flex;align-items:center;gap:10px}.file-name{font-weight:400;color:var(--text-primary);font-size:14px}.folder-icon,.file-icon-svg{flex-shrink:0}.row-action-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;color:#fff;background:var(--blue-primary);transition:background .15s;margin-left:auto}.row-action-btn:hover{background:var(--blue-hover)}.file-grid-wrapper{padding:0}.file-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:16px;padding:16px 0}.file-grid-item{display:flex;flex-direction:column;align-items:center;padding:24px 16px 16px;border-radius:8px;cursor:pointer;transition:background .15s}.file-grid-item:hover{background:var(--bg-hover)}.file-grid-item.selected{background:var(--bg-selected)}.grid-item-icon{margin-bottom:12px}.grid-item-name{font-size:13px;text-align:center;word-break:break-word;line-height:1.3}.empty-folder{flex:1;display:flex;align-items:center;justify-content:center;margin:16px 24px;border:2px dashed #D0D0D0;border-radius:12px;transition:all .2s}.empty-folder.drag-over{border-color:var(--blue-primary);background:var(--blue-light)}.empty-folder-content{text-align:center;padding:48px}.empty-folder-content svg{margin-bottom:16px}.empty-folder-content h2{font-size:20px;font-weight:700;margin-bottom:8px}.empty-folder-content p{color:var(--text-secondary);margin-bottom:24px;font-size:14px}.upload-btn{display:inline-flex;align-items:center;padding:10px 24px;border:1px solid var(--border-color);border-radius:8px;font-size:14px;font-weight:700;color:var(--text-primary);background:#fff;transition:all .15s}.upload-btn:hover{background:var(--bg-hover);border-color:#ccc}.details-panel{width:300px;min-width:300px;border-left:1px solid var(--border-color);display:flex;flex-direction:column;overflow-y:auto}.details-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px;text-align:center}.details-empty svg{margin-bottom:16px;opacity:.5}.details-empty p{color:var(--text-light);font-size:13px;line-height:1.5}.details-tabs{display:flex;border-bottom:1px solid var(--border-color)}.details-tab{flex:1;padding:14px 16px;font-size:14px;font-weight:700;color:var(--text-secondary);text-align:center;position:relative;transition:color .15s}.details-tab:hover,.details-tab.active{color:var(--text-primary)}.details-tab.active:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:2px;background:var(--text-primary)}.details-content{flex:1;padding:24px}.details-sharing{display:flex;flex-direction:column;align-items:center;text-align:center}.sharing-icon{margin-bottom:16px}.sharing-text{color:var(--text-secondary);font-size:13px;margin-bottom:20px;line-height:1.5}.invite-btn{display:inline-flex;align-items:center;padding:8px 20px;border:1px solid var(--border-color);border-radius:8px;font-size:13px;font-weight:700;color:var(--text-primary);background:#fff;transition:all .15s}.invite-btn:hover{background:var(--bg-hover);border-color:#ccc}.shared-link-section{width:100%;margin-top:32px;border-top:1px solid var(--border-color);padding-top:20px}.shared-link-row{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-secondary)}.link-icon{color:var(--text-light)}.create-link-btn{margin-left:auto;padding:6px 16px;border:1px solid var(--border-color);border-radius:6px;font-size:12px;font-weight:700;color:var(--text-primary);background:#fff;transition:all .15s}.create-link-btn:hover{background:var(--bg-hover)}.details-file-info{text-align:center}.details-file-preview{margin-bottom:16px}.details-file-info h3{font-size:15px;font-weight:700;margin-bottom:20px;word-break:break-word}.details-meta{text-align:left;margin-bottom:20px}.meta-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid #F0F0F0;font-size:13px}.meta-label{color:var(--text-secondary)}.meta-value{color:var(--text-primary);font-weight:500}.details-actions{display:flex;flex-direction:column;gap:8px}.detail-action-btn{display:block;width:100%;padding:8px;text-align:center;border:1px solid var(--border-color);border-radius:6px;font-size:13px;font-weight:700;color:var(--text-primary);background:#fff;transition:all .15s}.detail-action-btn:hover{background:var(--bg-hover)}.detail-action-btn.danger{color:var(--danger);border-color:#ffcdd2}.detail-action-btn.danger:hover{background:#ffebee}.context-menu-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:999}.context-menu{position:fixed;z-index:1000;background:#fff;border-radius:8px;box-shadow:0 4px 16px #00000026;min-width:180px;padding:6px 0}.context-menu button,.context-menu a{display:flex;align-items:center;gap:10px;padding:10px 16px;width:100%;font-size:14px;color:var(--text-primary);text-align:left}.context-menu button:hover,.context-menu a:hover{background:var(--bg-hover)}.context-menu .danger{color:var(--danger)}.context-menu .danger:hover{background:#ffebee}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000}.dialog{background:#fff;border-radius:12px;padding:24px;min-width:360px;box-shadow:0 8px 32px #0003}.dialog h3{font-size:18px;margin-bottom:16px}.dialog input{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:6px;font-size:14px;font-family:inherit;outline:none;margin-bottom:16px}.dialog input:focus{border-color:var(--blue-primary);box-shadow:0 0 0 2px #0061d526}.dialog-actions{display:flex;gap:8px;justify-content:flex-end}