:root { 
  --bg: #1a1a1a; --text: #FFA500; --link: #4DB6AC; 
  --btn-bg: #333; --btn-text: #aaa; --accent: #2e7d32; --panel-bg: #252525; 
}
body.theme-0 { --bg: #e8f4ea; --text: #2e3b2e; --link: #1565C0; --btn-bg: #d0ded0; --btn-text: #555; --panel-bg: #d8e6d8; }
body.theme-1 { --bg: #f4ecd8; --text: #4a3a2a; --link: #795548; --btn-bg: #e6dec9; --btn-text: #666; --panel-bg: #ebe2cc; }

body { 
  font-family: sans-serif; margin: 0; background: var(--bg); color: var(--text); 
  transition: 0.3s; display: flex; flex-direction: column; min-height: 100vh; text-align: center; 
}

main { flex: 1; padding-top: 15px; }

/* 第一行次搜索框 */
.search-box { padding: 5px 10px; position: relative; }
.bar { display: flex; justify-content: center; position: relative; z-index: 102; }
input#q { 
  width: 70%; padding: 10px; border: 1px solid #555; border-radius: 5px 0 0 5px; 
  background: #c8e6c9; color: #000; outline: none; font-size: 16px; 
}
#s-btn { padding: 0 20px; background: var(--accent); color: #fff; border: none; border-radius: 0 5px 5px 0; cursor: pointer; }

/* 第二行次引擎按钮 */
.engines-container { margin-bottom: 10px; }
.engines { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.engine { padding: 5px 10px; border: 1px solid #666; background: var(--btn-bg); color: var(--btn-text); border-radius: 5px; cursor: pointer; font-size: 12px; }
.engine.active { background: #FF8C00; color: #fff; border-color: #FF8C00; }

/* 链接区域样式 */
.link-area { line-height: 2.2; min-height: 25px; padding: 5px 20px; } 
.link-area a { color: var(--link); text-decoration: none; font-weight: 500; margin: 0 8px; display: inline-block;}

.category-section { margin: 10px auto; max-width: 900px; text-align: left; padding: 0 15px; }
.collapse-btn { width: 100%; text-align: left; background: var(--panel-bg); color: var(--text); border: 1px solid #555; padding: 8px 10px; border-radius: 5px; cursor: pointer; }
.category-list { margin-top: 8px; padding: 5px 10px; line-height: 2; display: block; }
.category-item, .subcategory-item { border: 1px solid #444; border-radius: 6px; padding: 8px 10px; margin-bottom: 10px; background: rgba(255,255,255,0.03); }
.category-header, .subcategory-header { display: flex; justify-content: space-between; align-items: center; }
.category-actions { margin: 6px 0; display: flex; gap: 6px; flex-wrap: wrap; }
.category-select { display: flex; gap: 6px; align-items: center; margin: 6px 0; }
.category-select select { padding: 4px 6px; border-radius: 4px; border: 1px solid #666; background: var(--panel-bg); color: var(--text); }
.category-select option { background: var(--bg); color: var(--text); }
.category-empty { font-size: 12px; color: #888; padding: 2px 0; }
.subcategory-list { margin-left: 12px; }
.link-row { display: flex; justify-content: flex-start; align-items: center; gap: 8px; padding: 2px 0; font-size: 13px; }
.mgr-btn.small { padding: 2px 8px; font-size: 11px; }


.section-title { margin: 10px 0 2px 0; font-size: 12px; opacity: 0.7; }

/* 记事本 */
.note-container { width: 85%; margin: 0 auto 10px auto; max-width: 800px; }
textarea {
    width: 100%; height: 80px; background: rgba(255, 255, 255, 0.05);
    color: var(--text); border: 1px solid #444; border-radius: 5px;
    padding: 10px; font-size: 14px; resize: vertical; outline: none; box-sizing: border-box;
}
textarea[readonly] { background: transparent; border: 1px dashed #555; height: 50px; }

/* 管理控件 */
.admin-controls { margin: 10px 0; gap: 8px; display: flex; justify-content: center; flex-wrap: wrap; }
.mgr-btn { background: #444; color: #ddd; border: 1px solid #666; padding: 4px 10px; border-radius: 4px; cursor: pointer; font-size: 12px; }
.logout-btn { background: #8b0000; color: #fff; border: none; padding: 4px 10px; border-radius: 4px; cursor: pointer; font-size: 12px; }

/* 底部三列布局 */
footer { border-top: 1px solid rgba(128,128,128,0.2); padding: 10px 0; background: var(--bg); }
.footer-bar { 
  display: flex; justify-content: space-around; align-items: center; 
  max-width: 900px; margin: 0 auto; padding: 0 10px;
}
#page-title { font-size: 12px; opacity: 0.8; }
.footer-info { font-size: 11px; margin: 0; opacity: 0.6; }
.footer-info a { color: inherit; text-decoration: none; }
#t-btn { padding: 3px 10px; font-size: 11px; background: var(--btn-bg); color: var(--btn-text); border: 1px solid #555; border-radius: 3px; cursor: pointer; }

/* 拖拽效果 */
.draggable-item { cursor: grab; padding: 2px 5px; display: inline-block; }
.draggable-item.dragging { opacity: 0.3; border: 1px dashed var(--link); }

#login-area { padding: 10px 0; }
#pw-input { background: #222; color: #fff; border: 1px solid #444; padding: 5px; border-radius: 4px; text-align: center; width: 160px; font-size: 12px; }
.pw-actions { margin-top: 6px; display: flex; gap: 6px; justify-content: center; }
.pw-btn { background: #444; color: #ddd; border: 1px solid #666; padding: 4px 8px; border-radius: 4px; cursor: pointer; font-size: 12px; }

@media (max-width: 600px) {
    .footer-bar { flex-direction: column; gap: 8px; }
}