:root{--side-bg:#f5f0e1;--main-bg:#fdf6e3;--item-hover:rgba(0,0,0,.05);--item-active:#fff;--text-main:#586e75;--text-dim:#93a1a1;--border-color:rgba(0,0,0,.06);--accent-color:#d33682;--danger-color:#f56c6c;--transition:all .3s cubic-bezier(.4, 0, .2, 1)}.dark{--side-bg:#1e1e1e;--main-bg:#1a1a1b;--item-hover:rgba(255,255,255,.05);--item-active:#2d2d2d;--text-main:#e6edf3;--text-dim:#8b949e;--border-color:rgba(255,255,255,.1)}body{background-color:var(--main-bg);color:var(--text-main);transition:var(--transition);margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;overflow:hidden}#app{width:100vw;height:100vh;display:flex}.sidebar{background-color:var(--side-bg);border-right:1px solid var(--border-color);width:320px;transition:var(--transition);z-index:100;flex-direction:column;display:flex;position:relative;overflow:hidden}.sidebar.collapsed{width:0;transform:translate(-320px)}.sidebar-header{justify-content:space-between;align-items:center;padding:16px;display:flex}.sidebar-search{padding:0 16px 12px}.sidebar-search .el-input__wrapper{background-color:rgba(0,0,0,.04);border-radius:8px;box-shadow:none!important}.doc-list{flex:1;padding:0 8px;overflow-y:auto}.doc-item{cursor:pointer;transition:var(--transition);border:1px solid transparent;border-radius:10px;margin-bottom:4px;padding:12px 45px 12px 16px;position:relative}.doc-item:hover{background-color:var(--item-hover)}.doc-item.active{background-color:var(--item-active);box-shadow:0 2px 8px rgba(0,0,0,.05)}.doc-item-title{white-space:nowrap;text-overflow:ellipsis;margin-bottom:4px;font-size:14px;font-weight:600;overflow:hidden}.doc-item-meta{color:var(--text-dim);gap:8px;font-size:12px;display:flex}.doc-item-snippet{color:var(--text-dim);white-space:nowrap;text-overflow:ellipsis;margin-top:2px;font-size:12px;overflow:hidden}.doc-item-actions{opacity:0;transition:var(--transition);background:var(--side-bg);pointer-events:none;border-radius:6px;align-items:center;gap:0;padding:2px 8px;display:flex;position:absolute;bottom:12px;right:12px;box-shadow:0 2px 8px rgba(0,0,0,.08)}.doc-item:hover .doc-item-actions{opacity:1;pointer-events:auto}.doc-item-actions .el-link{font-size:12px}.doc-item-actions .el-divider--vertical{margin:0 8px}.main-area{background-color:var(--main-bg);transition:var(--transition);flex-direction:column;flex:1;display:flex;position:relative}.top-toolbar{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;height:56px;padding:0 24px;display:flex}.editor-container{flex-direction:column;flex:1;align-items:center;padding:24px;display:flex;overflow-y:auto}.editor-paper{width:100%;max-width:800px;min-height:100%;transition:var(--transition);background-color:#fff;border-radius:12px;flex-direction:column;display:flex;box-shadow:0 4px 20px rgba(0,0,0,.04)}.is-wide .editor-paper{max-width:100%;box-shadow:none;border-radius:0}.dark .editor-paper{background-color:#1e1e1e}.paper-title{padding:30px 40px 10px}.paper-title input{width:100%;color:var(--text-main);background:0 0;border:none;outline:none;font-size:28px;font-weight:700}.paper-body{flex:1;padding:0 40px 40px}iframe{border:none;width:100%;height:500px}.collapse-trigger{z-index:101;position:absolute;top:10px;left:10px}.save-indicator{color:var(--text-dim);opacity:0;font-size:12px;transition:opacity .5s;position:absolute;bottom:20px;right:40px}.save-indicator.visible{opacity:1}.sidebar-overlay{backdrop-filter:blur(2px);z-index:999;background:rgba(0,0,0,.3);display:none;position:fixed;top:0;bottom:0;left:0;right:0}.mobile-close-btn{display:none}@media (max-width:768px){.sidebar-overlay{display:block}.mobile-close-btn{display:flex}.sidebar{z-index:1000;width:280px;height:100%;position:fixed;box-shadow:10px 0 30px rgba(0,0,0,.1)}.sidebar.collapsed{box-shadow:none;transform:translate(-280px)}.main-area{width:100%}.paper-title{padding:20px}.paper-body{padding:0 20px 20px}.top-toolbar{padding:0 10px}}.el-button.is-circle{padding:8px}.dialog-ad{border-top:1px dashed var(--border-color);text-align:center;min-height:50px;margin-top:20px;padding-top:15px;overflow:hidden}.lang-links{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.lang-links a{color:var(--text-main);background:var(--item-hover);transition:var(--transition);border-radius:4px;padding:4px 10px;font-size:12px;text-decoration:none}.lang-links a:hover{background:var(--accent-color);color:#fff}@media (max-width:1200px){.responsive-dialog{width:95%!important;max-width:none!important}}.help-content li{margin-bottom:8px}.toolbar-actions{align-items:center;gap:6px;display:flex}.toolbar-actions .el-button,.toolbar-actions a{margin-left:0!important}