/**
 * OTM 本地图标库 — lo- 前缀图标
 *
 * 所有图标使用内联 SVG，无需任何外部依赖。
 * 用法: <i class="lo lo-tools"></i>
 *
 * @package Online_Tools_Manager
 * @version 1.0.0
 */

/* ═══════════════════════════════════════════
   基础样式
   ═══════════════════════════════════════════ */
i[class^="lo lo-"],
i[class*=" lo lo-"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1em;
    height: 1em;
    vertical-align: -0.125em;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    font-style: normal;
    line-height: 1;
}

/* ═══════════════════════════════════════════
   工具类
   ═══════════════════════════════════════════ */
.lo-tools { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M14.7 6.3a1 1 0 0 0 0 1.4l1.6 1.6a1 1 0 0 0 1.4 0l3.77-3.77a6 6 0 0 1-7.94 7.94l-6.91 6.91a2.12 2.12 0 0 1-3-3l6.91-6.91a6 6 0 0 1 7.94-7.94l-3.76 3.76z'/%3E%3C/svg%3E"); }

/* 搜索 */
.lo-search { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E"); }

/* 热门 */
.lo-fire { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M8.5 14.5A2.5 2.5 0 0 0 11 12c0-1.38-.5-2-1-3-1.072-2.143-.224-4.054 2-6 .5 2.5 2 4.9 4 6.5 2 1.6 3 3.5 3 5.5a7 7 0 1 1-14 0c0-1.153.433-2.294 1-3a2.5 2.5 0 0 0 2.5 2.5z'/%3E%3C/svg%3E"); }

/* 收藏 */
.lo-star { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolygon points='12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2'/%3E%3C/svg%3E"); }

/* 拼图（默认工具图标） */
.lo-puzzle { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M19.439 7.85c-.049.322.059.648.289.878l1.568 1.568c.47.47.706 1.087.706 1.704s-.235 1.233-.706 1.704l-1.611 1.611a.98.98 0 0 1-.837.276c-.47-.07-.802-.48-.968-.925a2.501 2.501 0 1 0-3.214 3.214c.446.166.855.497.925.968a.979.979 0 0 1-.276.837l-1.61 1.611a2.404 2.404 0 0 1-1.705.706 2.404 2.404 0 0 1-1.704-.706l-1.568-1.568a1.026 1.026 0 0 0-.877-.29c-.493.074-.84.504-1.02.968a2.5 2.5 0 1 1-3.237-3.237c.464-.18.894-.527.967-1.02a1.026 1.026 0 0 0-.289-.877l-1.568-1.568A2.404 2.404 0 0 1 1.998 12c0-.617.236-1.234.706-1.704L4.315 8.685a.98.98 0 0 1 .837-.276c.47.07.802.48.968.925a2.501 2.501 0 1 0 3.214-3.214c-.446-.166-.855-.497-.925-.968a.979.979 0 0 1 .276-.837l1.61-1.611a2.404 2.404 0 0 1 1.705-.706c.617 0 1.234.236 1.704.706l1.568 1.568c.23.23.556.338.877.29.493-.074.84-.504 1.02-.968a2.5 2.5 0 1 1 3.237 3.237c-.464.18-.894.527-.967 1.02z'/%3E%3C/svg%3E"); }

/* 文件夹 */
.lo-folder { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z'/%3E%3C/svg%3E"); }

/* 齿轮 */
.lo-cog { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='3'/%3E%3Cpath d='M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06A1.65 1.65 0 0 0 4.68 15a1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06A1.65 1.65 0 0 0 9 4.68a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06A1.65 1.65 0 0 0 19.4 9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z'/%3E%3C/svg%3E"); }

/* ═══════════════════════════════════════════
   分类图标
   ═══════════════════════════════════════════ */
.lo-shield { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z'/%3E%3C/svg%3E"); }
.lo-exchange { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='17 1 21 5 17 9'/%3E%3Cpath d='M3 11V9a4 4 0 0 1 4-4h14'/%3E%3Cpolyline points='7 23 3 19 7 15'/%3E%3Cpath d='M21 13v2a4 4 0 0 1-4 4H3'/%3E%3C/svg%3E"); }
.lo-book { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M4 19.5A2.5 2.5 0 0 1 6.5 17H20'/%3E%3Cpath d='M6.5 2H20v20H6.5A2.5 2.5 0 0 1 4 19.5v-15A2.5 2.5 0 0 1 6.5 2z'/%3E%3C/svg%3E"); }
.lo-globe { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cline x1='2' y1='12' x2='22' y2='12'/%3E%3Cpath d='M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10 15.3 15.3 0 0 1 4-10z'/%3E%3C/svg%3E"); }
.lo-image { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='3' y='3' width='18' height='18' rx='2' ry='2'/%3E%3Ccircle cx='8.5' cy='8.5' r='1.5'/%3E%3Cpolyline points='21 15 16 10 5 21'/%3E%3C/svg%3E"); }
.lo-hashtag { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='4' y1='9' x2='20' y2='9'/%3E%3Cline x1='4' y1='15' x2='20' y2='15'/%3E%3Cline x1='10' y1='3' x2='8' y2='21'/%3E%3Cline x1='16' y1='3' x2='14' y2='21'/%3E%3C/svg%3E"); }
.lo-lock { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='3' y='11' width='18' height='11' rx='2' ry='2'/%3E%3Cpath d='M7 11V7a5 5 0 0 1 10 0v4'/%3E%3C/svg%3E"); }
.lo-code { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='16 18 22 12 16 6'/%3E%3Cpolyline points='8 6 2 12 8 18'/%3E%3C/svg%3E"); }
.lo-indent { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='21' y1='12' x2='11' y2='12'/%3E%3Cline x1='21' y1='6' x2='11' y2='6'/%3E%3Cline x1='21' y1='18' x2='11' y2='18'/%3E%3Cpolyline points='7 8 3 12 7 16'/%3E%3C/svg%3E"); }
.lo-font { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='4 7 4 4 20 4 20 7'/%3E%3Cline x1='9' y1='20' x2='15' y2='20'/%3E%3Cline x1='12' y1='4' x2='12' y2='20'/%3E%3C/svg%3E"); }
.lo-chart-bar { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='18' y1='20' x2='18' y2='10'/%3E%3Cline x1='12' y1='20' x2='12' y2='4'/%3E%3Cline x1='6' y1='20' x2='6' y2='14'/%3E%3C/svg%3E"); }
.lo-video { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolygon points='23 7 16 12 23 17 23 7'/%3E%3Crect x='1' y='5' width='15' height='14' rx='2' ry='2'/%3E%3C/svg%3E"); }
.lo-microchip { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='4' y='4' width='16' height='16' rx='2'/%3E%3Cline x1='9' y1='2' x2='9' y2='4'/%3E%3Cline x1='15' y1='2' x2='15' y2='4'/%3E%3Cline x1='9' y1='20' x2='9' y2='22'/%3E%3Cline x1='15' y1='20' x2='15' y2='22'/%3E%3Cline x1='2' y1='9' x2='4' y2='9'/%3E%3Cline x1='2' y1='15' x2='4' y2='15'/%3E%3Cline x1='20' y1='9' x2='22' y2='9'/%3E%3Cline x1='20' y1='15' x2='22' y2='15'/%3E%3Cline x1='8' y1='8' x2='16' y2='16'/%3E%3Ccircle cx='8.5' cy='8.5' r='1' fill='currentColor'/%3E%3Ccircle cx='15.5' cy='15.5' r='1' fill='currentColor'/%3E%3C/svg%3E"); }
.lo-th-large { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='3' y='3' width='7' height='7'/%3E%3Crect x='14' y='3' width='7' height='7'/%3E%3Crect x='14' y='14' width='7' height='7'/%3E%3Crect x='3' y='14' width='7' height='7'/%3E%3C/svg%3E"); }

/* ═══════════════════════════════════════════
   操作类图标
   ═══════════════════════════════════════════ */
.lo-plus { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='12' y1='5' x2='12' y2='19'/%3E%3Cline x1='5' y1='12' x2='19' y2='12'/%3E%3C/svg%3E"); }
.lo-trash { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='3 6 5 6 21 6'/%3E%3Cpath d='M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2'/%3E%3C/svg%3E"); }
.lo-edit { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7'/%3E%3Cpath d='M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z'/%3E%3C/svg%3E"); }
.lo-save { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M19 21H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11l5 5v11a2 2 0 0 1-2 2z'/%3E%3Cpolyline points='17 21 17 13 7 13 7 21'/%3E%3Cpolyline points='7 3 7 8 15 8'/%3E%3C/svg%3E"); }
.lo-sync { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='23 4 23 10 17 10'/%3E%3Cpolyline points='1 20 1 14 7 14'/%3E%3Cpath d='M3.51 9a9 9 0 0 1 14.85-3.36L23 10M1 14l4.64 4.36A9 9 0 0 0 20.49 15'/%3E%3C/svg%3E"); }
.lo-database { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cellipse cx='12' cy='5' rx='9' ry='3'/%3E%3Cpath d='M21 12c0 1.66-4 3-9 3s-9-1.34-9-3'/%3E%3Cpath d='M3 5v14c0 1.66 4 3 9 3s9-1.34 9-3V5'/%3E%3C/svg%3E"); }
.lo-check { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E"); }
.lo-copy { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='9' y='9' width='13' height='13' rx='2' ry='2'/%3E%3Cpath d='M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1'/%3E%3C/svg%3E"); }
.lo-exclamation { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M10.29 3.86L1.82 18a2 2 0 0 0 1.71 3h16.94a2 2 0 0 0 1.71-3L13.71 3.86a2 2 0 0 0-3.42 0z'/%3E%3Cline x1='12' y1='9' x2='12' y2='13'/%3E%3Cline x1='12' y1='17' x2='12.01' y2='17'/%3E%3C/svg%3E"); }

/* ═══════════════════════════════════════════
   编辑类图标
   ═══════════════════════════════════════════ */
.lo-comment { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z'/%3E%3C/svg%3E"); }
.lo-keyboard { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='2' y='4' width='20' height='16' rx='2' ry='2'/%3E%3Cline x1='6' y1='8' x2='6' y2='8'/%3E%3Cline x1='10' y1='8' x2='10' y2='8'/%3E%3Cline x1='14' y1='8' x2='14' y2='8'/%3E%3Cline x1='18' y1='8' x2='18' y2='8'/%3E%3Cline x1='8' y1='12' x2='16' y2='12'/%3E%3Cline x1='6' y1='16' x2='6' y2='16'/%3E%3Cline x1='10' y1='16' x2='10' y2='16'/%3E%3Cline x1='14' y1='16' x2='14' y2='16'/%3E%3Cline x1='18' y1='16' x2='18' y2='16'/%3E%3C/svg%3E"); }
.lo-expand { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='15 3 21 3 21 9'/%3E%3Cpolyline points='9 21 3 21 3 15'/%3E%3Cline x1='21' y1='3' x2='14' y2='10'/%3E%3Cline x1='3' y1='21' x2='10' y2='14'/%3E%3C/svg%3E"); }
.lo-compress { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='4 8 4 3 9 3'/%3E%3Cpolyline points='20 16 20 21 15 21'/%3E%3Cline x1='14' y1='3' x2='21' y2='10'/%3E%3Cline x1='3' y1='14' x2='10' y2='21'/%3E%3C/svg%3E"); }
.lo-sun { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='5'/%3E%3Cline x1='12' y1='1' x2='12' y2='3'/%3E%3Cline x1='12' y1='21' x2='12' y2='23'/%3E%3Cline x1='4.22' y1='4.22' x2='5.64' y2='5.64'/%3E%3Cline x1='18.36' y1='18.36' x2='19.78' y2='19.78'/%3E%3Cline x1='1' y1='12' x2='3' y2='12'/%3E%3Cline x1='21' y1='12' x2='23' y2='12'/%3E%3Cline x1='4.22' y1='19.78' x2='5.64' y2='18.36'/%3E%3Cline x1='18.36' y1='5.64' x2='19.78' y2='4.22'/%3E%3C/svg%3E"); }
.lo-moon { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z'/%3E%3C/svg%3E"); }

/* ═══════════════════════════════════════════
   功能类图标
   ═══════════════════════════════════════════ */
.lo-calculator { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='4' y='2' width='16' height='20' rx='2' ry='2'/%3E%3Cline x1='8' y1='6' x2='16' y2='6'/%3E%3Cline x1='8' y1='10' x2='8' y2='10'/%3E%3Cline x1='12' y1='10' x2='12' y2='10'/%3E%3Cline x1='16' y1='10' x2='16' y2='10'/%3E%3Cline x1='8' y1='14' x2='8' y2='14'/%3E%3Cline x1='12' y1='14' x2='12' y2='14'/%3E%3Cline x1='16' y1='18' x2='16' y2='18'/%3E%3Cline x1='8' y1='18' x2='12' y2='18'/%3E%3C/svg%3E"); }
.lo-eye-dropper { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='m2 22 1-1h3l9-9'/%3E%3Cpath d='M3 21v-3l9-9'/%3E%3Cpath d='m15 6 3.4-3.4a2.1 2.1 0 1 1 3 3L18 9'/%3E%3C/svg%3E"); }
.lo-list-ul { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='8' y1='6' x2='21' y2='6'/%3E%3Cline x1='8' y1='12' x2='21' y2='12'/%3E%3Cline x1='8' y1='18' x2='21' y2='18'/%3E%3Cline x1='3' y1='6' x2='3.01' y2='6'/%3E%3Cline x1='3' y1='12' x2='3.01' y2='12'/%3E%3Cline x1='3' y1='18' x2='3.01' y2='18'/%3E%3C/svg%3E"); }
.lo-paint-brush { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M21.66 6.77L17.23 2.34a2 2 0 0 0-2.83 0L4.18 12.57a8 8 0 0 0 7.25 7.25l10.23-10.22a2 2 0 0 0 0-2.83z'/%3E%3Cpath d='M4.18 12.57a8 8 0 0 0 2.05 4.2c.55.55 2.92.94 4.2 2.05'/%3E%3Cline x1='14.5' y1='2.5' x2='21.5' y2='9.5'/%3E%3C/svg%3E"); }
.lo-css3 { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolygon points='12 2 22 6 20 21 12 23 4 21 2 6 12 2'/%3E%3Cpolyline points='2 6 12 8 22 6'/%3E%3Cpath d='M7 11l3 4 2-4h4l-3 5 3 4h-4'/%3E%3C/svg%3E"); }
.lo-qrcode { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='3' y='3' width='7' height='7'/%3E%3Crect x='14' y='3' width='7' height='7'/%3E%3Cline x1='7' y1='7' x2='3' y2='7'/%3E%3Cline x1='18' y1='6' x2='14' y2='7'/%3E%3Cline x1='11' y1='11' x2='11' y2='21'/%3E%3Cline x1='21' y1='11' x2='21' y2='14'/%3E%3Cline x1='14' y1='14' x2='21' y2='14'/%3E%3Cline x1='14' y1='18' x2='14' y2='21'/%3E%3Cline x1='21' y1='18' x2='21' y2='21'/%3E%3Cline x1='14' y1='14' x2='18' y2='21'/%3E%3C/svg%3E"); }
.lo-barcode { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='2' y1='4' x2='2' y2='20'/%3E%3Cline x1='6' y1='4' x2='6' y2='20'/%3E%3Cline x1='10' y1='4' x2='10' y2='20'/%3E%3Cline x1='14' y1='4' x2='14' y2='16'/%3E%3Cline x1='18' y1='4' x2='18' y2='12'/%3E%3Cline x1='22' y1='4' x2='22' y2='20'/%3E%3C/svg%3E"); }
.lo-clock { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpolyline points='12 6 12 12 16 14'/%3E%3C/svg%3E"); }
.lo-download { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4'/%3E%3Cpolyline points='7 10 12 15 17 10'/%3E%3Cline x1='12' y1='15' x2='12' y2='3'/%3E%3C/svg%3E"); }
.lo-upload { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4'/%3E%3Cpolyline points='17 8 12 3 7 8'/%3E%3Cline x1='12' y1='3' x2='12' y2='15'/%3E%3C/svg%3E"); }
.lo-file { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M13 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V9z'/%3E%3Cpolyline points='13 2 13 9 20 9'/%3E%3C/svg%3E"); }
.lo-link { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71'/%3E%3Cpath d='M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71'/%3E%3C/svg%3E"); }
.lo-unlink { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71'/%3E%3Cpath d='M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71'/%3E%3Cline x1='2' y1='2' x2='22' y2='22'/%3E%3C/svg%3E"); }
.lo-eye { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z'/%3E%3Ccircle cx='12' cy='12' r='3'/%3E%3C/svg%3E"); }
.lo-tachometer { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M12 2v4M4.93 4.93l2.83 2.83M2 12h4M4.93 19.07l2.83-2.83'/%3E%3Cline x1='12' y1='14' x2='12' y2='12'/%3E%3Cline x1='12' y1='12' x2='16' y2='10'/%3E%3C/svg%3E"); }
.lo-layer-group { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolygon points='12 2 22 7 12 12 2 7 12 2'/%3E%3Cpolyline points='2 17 12 22 22 17'/%3E%3Cpolyline points='2 12 12 17 22 12'/%3E%3C/svg%3E"); }
.lo-folder-tree { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z'/%3E%3Cline x1='12' y1='11' x2='12' y2='22'/%3E%3Cpath d='M12 11 9 8h6Z'/%3E%3Cline x1='9' y1='16' x2='15' y2='16'/%3E%3C/svg%3E"); }
.lo-mouse-pointer { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='m3 3 7.07 16.97 2.51-7.39 7.39-2.51L3 3z'/%3E%3Cpath d='m13 13 6 6'/%3E%3C/svg%3E"); }
.lo-code-branch { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='6' y1='3' x2='6' y2='15'/%3E%3Ccircle cx='18' cy='6' r='3'/%3E%3Ccircle cx='6' cy='18' r='3'/%3E%3Cpath d='M18 9a9 9 0 0 1-9 9'/%3E%3C/svg%3E"); }
.lo-spinner { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='12' y1='2' x2='12' y2='6'/%3E%3Cline x1='12' y1='18' x2='12' y2='22'/%3E%3Cline x1='4.93' y1='4.93' x2='7.76' y2='7.76'/%3E%3Cline x1='16.24' y1='16.24' x2='19.07' y2='19.07'/%3E%3Cline x1='2' y1='12' x2='6' y2='12'/%3E%3Cline x1='18' y1='12' x2='22' y2='12'/%3E%3Cline x1='4.93' y1='19.07' x2='7.76' y2='16.24'/%3E%3Cline x1='16.24' y1='7.76' x2='19.07' y2='4.93'/%3E%3C/svg%3E"); animation: lo-spin 1s linear infinite; }

@keyframes lo-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ═══════════════════════════════════════════
   常用工具图标
   ═══════════════════════════════════════════ */
.lo-encrypt { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='3' y='11' width='18' height='11' rx='2' ry='2'/%3E%3Cpath d='M7 11V7a5 5 0 0 1 10 0v4'/%3E%3Ccircle cx='12' cy='16' r='1'/%3E%3C/svg%3E"); }
.lo-convert { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='1 4 1 10 7 10'/%3E%3Cpolyline points='23 20 23 14 17 14'/%3E%3Cpath d='M20.49 9A9 9 0 0 0 5.64 5.64L1 10m22 4l-4.64 4.36A9 9 0 0 1 3.51 15'/%3E%3C/svg%3E"); }
.lo-compress-alt { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='4 14 10 14 10 20'/%3E%3Cpolyline points='20 10 14 10 14 4'/%3E%3Cline x1='14' y1='10' x2='21' y2='3'/%3E%3Cline x1='3' y1='21' x2='10' y2='14'/%3E%3C/svg%3E"); }
.lo-expand-alt { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='15 3 21 3 21 9'/%3E%3Cpolyline points='9 21 3 21 3 15'/%3E%3Cline x1='21' y1='3' x2='14' y2='10'/%3E%3Cline x1='3' y1='21' x2='10' y2='14'/%3E%3C/svg%3E"); }
.lo-music { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M9 18V5l12-2v13'/%3E%3Ccircle cx='6' cy='18' r='3'/%3E%3Ccircle cx='18' cy='16' r='3'/%3E%3C/svg%3E"); }
.lo-pdf { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z'/%3E%3Cpolyline points='14 2 14 8 20 8'/%3E%3Cpath d='M9 15v-4h4a2 2 0 0 1 0 4H9'/%3E%3C/svg%3E"); }
.lo-setting { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='3'/%3E%3Cpath d='M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06A1.65 1.65 0 0 0 4.68 15a1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06A1.65 1.65 0 0 0 9 4.68a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06A1.65 1.65 0 0 0 19.4 9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z'/%3E%3C/svg%3E"); }
.lo-info { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cline x1='12' y1='16' x2='12' y2='12'/%3E%3Cline x1='12' y1='8' x2='12.01' y2='8'/%3E%3C/svg%3E"); }
.lo-swap { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='7 16 3 12 7 8'/%3E%3Cpolyline points='17 8 21 12 17 16'/%3E%3Cline x1='14' y1='4' x2='10' y2='20'/%3E%3C/svg%3E"); }
.lo-warning { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cline x1='12' y1='8' x2='12' y2='12'/%3E%3Cline x1='12' y1='16' x2='12.01' y2='16'/%3E%3C/svg%3E"); }
.lo-success { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M22 11.08V12a10 10 0 1 1-5.93-9.14'/%3E%3Cpolyline points='22 4 12 14.01 9 11.01'/%3E%3C/svg%3E"); }