/**
 * =============================================================================
 * Skin: Default Clean Layout
 * =============================================================================
 */
body { margin: 0; font-family: Arial, sans-serif; background-color: #f0f2f5; display: flex; flex-direction: column; height: 100vh; overflow: hidden; }
.ccms-section-1 { background: #2c3e50; color: white; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; box-sizing: border-box; }
.ccms-banner-text .banner-line-1 { font-size: 16px; font-weight: bold; }
.ccms-banner-text .banner-line-2 { font-size: 12px; color: #bdc3c7; }
.ccms-skin-chooser select { padding: 4px 8px; border-radius: 4px; border: none; }
.ccms-main-wrapper { display: flex; flex: 1; height: calc(100vh - 80px); }
.ccms-section-2 { background: #ffffff; border-right: 1px solid #ddd; padding: 15px; box-sizing: border-box; overflow-y: auto; }
.ccms-logo-area { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; border-bottom: 1px solid #eee; padding-bottom: 10px; }
.vs2-banner-text { font-weight: bold; font-size: 14px; }
.ccms-menu-container { display: flex; flex-direction: column; gap: 8px; }
.menu-item a { text-decoration: none; color: #333; font-size: 13px; display: block; padding: 4px 6px; border-radius: 3px; transition: background 0.2s; }
.menu-item a:hover { background: #e2e8f0; color: #1d4ed8; }
.menu-indent-level2 { padding-left: 20px; font-size: 12px; }
.ccms-section-3 { flex: 1; display: flex; flex-direction: column; background: #ffffff; box-sizing: border-box; }
.ccms-iframe { flex: 1; width: 100%; border: none; background: #ffffff; }