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var(--transition)}input::placeholder,textarea::placeholder{color:var(--text-placeholder);opacity:1}input:focus,textarea:focus,select:focus{border-color:var(--accent)}textarea{resize:vertical;line-height:1.5}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.dialog{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);min-width:420px;max-width:560px;max-height:80vh;display:flex;flex-direction:column}.dialog__header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border-subtle)}.dialog__title{font-size:15px;font-weight:600}.dialog__close{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);color:var(--text-secondary);transition:background var(--transition)}.dialog__close:hover{background:var(--bg-hover);color:var(--text-primary)}.dialog__body{padding:20px;overflow-y:auto;flex:1}.about-dialog__body section{margin-bottom:16px}.about-dialog__body h3{font-size:13px;font-weight:600;margin-bottom:6px;color:var(--text-primary)}.about-dialog__body p{font-size:13px;line-height:1.6;color:var(--text-secondary)}.about-dialog__version{font-size:12px;color:var(--text-muted);margin-bottom:16px}.about-dialog__wechat{margin-top:8px;padding:8px 12px;background:var(--bg-subtle);border-radius:var(--radius-sm);font-size:12px}.status-bar__item--pro{color:var(--accent);font-weight:500}.dialog__footer{display:flex;justify-content:flex-end;gap:8px;padding:12px 20px;border-top:1px solid var(--border-subtle)}.btn{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--radius-sm);font-weight:500;transition:background var(--transition),color var(--transition)}.btn--primary{background:var(--accent);color:#fff}.btn--primary:hover{background:var(--accent-hover)}.btn--primary:disabled{opacity:.5;cursor:not-allowed}.btn--secondary{background:var(--bg-hover);color:var(--text-primary)}.btn--secondary:hover{background:var(--bg-active)}.btn--ghost{color:var(--text-secondary)}.btn--ghost:hover{background:var(--bg-hover);color:var(--text-primary)}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;font-weight:600;color:var(--text-primary);font-size:13px}.form-group input,.form-group textarea,.form-group select{width:100%}.form-hint{margin-top:4px;font-size:12px;color:var(--text-muted)}.markdown-body{line-height:1.6;font-size:13px;user-select:text;-webkit-user-select:text;cursor:text}.markdown-body h2{font-size:15px;margin:12px 0 6px}.markdown-body h3{font-size:14px;margin:10px 0 4px}.markdown-body p{margin-bottom:8px}.markdown-body ul,.markdown-body ol{padding-left:20px;margin-bottom:8px}.markdown-body li{margin-bottom:2px}.markdown-body code{font-family:var(--font-mono);font-size:12px;background:var(--bg-hover);padding:1px 5px;border-radius:3px}.markdown-body pre{background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);padding:10px;overflow-x:auto;margin-bottom:8px}.markdown-body pre code{background:none;padding:0}.markdown-body blockquote{border-left:3px solid var(--accent);padding-left:12px;color:var(--text-secondary);margin-bottom:8px}.markdown-body img,.markdown-body video{max-width:100%;border-radius:var(--radius-sm);margin:8px 0}