/* 本地图标集 —— 替代 bootstrap-icons CDN 外链（离线/防溯源：零网络请求） */
/* 仅内联本项目 index.html 实际用到的 7 个图标，SVG path 取自 bootstrap-icons 1.11.3（MIT License） */
/* 用 CSS mask 实现：图标颜色跟随 currentColor，行为与原字体图标一致 */

.bi {
  display: inline-block;
  width: 1em;
  height: 1em;
  vertical-align: -0.125em;
  background-color: currentColor;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
}

/* bi-cpu */
.bi-cpu {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M5 0a.5.5 0 0 1 .5.5V2h1V.5a.5.5 0 0 1 1 0V2h1V.5a.5.5 0 0 1 1 0V2h1V.5a.5.5 0 0 1 1 0V2A2.5 2.5 0 0 1 14 4.5h1.5a.5.5 0 0 1 0 1H14v1h1.5a.5.5 0 0 1 0 1H14v1h1.5a.5.5 0 0 1 0 1H14v1h1.5a.5.5 0 0 1 0 1H14a2.5 2.5 0 0 1-2.5 2.5v1.5a.5.5 0 0 1-1 0V14h-1v1.5a.5.5 0 0 1-1 0V14h-1v1.5a.5.5 0 0 1-1 0V14h-1v1.5a.5.5 0 0 1-1 0V14A2.5 2.5 0 0 1 2 11.5H.5a.5.5 0 0 1 0-1H2v-1H.5a.5.5 0 0 1 0-1H2v-1H.5a.5.5 0 0 1 0-1H2v-1H.5a.5.5 0 0 1 0-1H2A2.5 2.5 0 0 1 4.5 2V.5A.5.5 0 0 1 5 0m-.5 3A1.5 1.5 0 0 0 3 4.5v7A1.5 1.5 0 0 0 4.5 13h7a1.5 1.5 0 0 0 1.5-1.5v-7A1.5 1.5 0 0 0 11.5 3zM5 6.5A1.5 1.5 0 0 1 6.5 5h3A1.5 1.5 0 0 1 11 6.5v3A1.5 1.5 0 0 1 9.5 11h-3A1.5 1.5 0 0 1 5 9.5zM6.5 6a.5.5 0 0 0-.5.5v3a.5.5 0 0 0 .5.5h3a.5.5 0 0 0 .5-.5v-3a.5.5 0 0 0-.5-.5z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M5 0a.5.5 0 0 1 .5.5V2h1V.5a.5.5 0 0 1 1 0V2h1V.5a.5.5 0 0 1 1 0V2h1V.5a.5.5 0 0 1 1 0V2A2.5 2.5 0 0 1 14 4.5h1.5a.5.5 0 0 1 0 1H14v1h1.5a.5.5 0 0 1 0 1H14v1h1.5a.5.5 0 0 1 0 1H14v1h1.5a.5.5 0 0 1 0 1H14a2.5 2.5 0 0 1-2.5 2.5v1.5a.5.5 0 0 1-1 0V14h-1v1.5a.5.5 0 0 1-1 0V14h-1v1.5a.5.5 0 0 1-1 0V14h-1v1.5a.5.5 0 0 1-1 0V14A2.5 2.5 0 0 1 2 11.5H.5a.5.5 0 0 1 0-1H2v-1H.5a.5.5 0 0 1 0-1H2v-1H.5a.5.5 0 0 1 0-1H2v-1H.5a.5.5 0 0 1 0-1H2A2.5 2.5 0 0 1 4.5 2V.5A.5.5 0 0 1 5 0m-.5 3A1.5 1.5 0 0 0 3 4.5v7A1.5 1.5 0 0 0 4.5 13h7a1.5 1.5 0 0 0 1.5-1.5v-7A1.5 1.5 0 0 0 11.5 3zM5 6.5A1.5 1.5 0 0 1 6.5 5h3A1.5 1.5 0 0 1 11 6.5v3A1.5 1.5 0 0 1 9.5 11h-3A1.5 1.5 0 0 1 5 9.5zM6.5 6a.5.5 0 0 0-.5.5v3a.5.5 0 0 0 .5.5h3a.5.5 0 0 0 .5-.5v-3a.5.5 0 0 0-.5-.5z'/%3E%3C/svg%3E");
}

/* bi-lightning-charge */
.bi-lightning-charge {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M11.251.068a.5.5 0 0 1 .227.58L9.677 6.5H13a.5.5 0 0 1 .364.843l-8 8.5a.5.5 0 0 1-.842-.49L6.323 9.5H3a.5.5 0 0 1-.364-.843l8-8.5a.5.5 0 0 1 .615-.09zM4.157 8.5H7a.5.5 0 0 1 .478.647L6.11 13.59l5.732-6.09H9a.5.5 0 0 1-.478-.647L9.89 2.41z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M11.251.068a.5.5 0 0 1 .227.58L9.677 6.5H13a.5.5 0 0 1 .364.843l-8 8.5a.5.5 0 0 1-.842-.49L6.323 9.5H3a.5.5 0 0 1-.364-.843l8-8.5a.5.5 0 0 1 .615-.09zM4.157 8.5H7a.5.5 0 0 1 .478.647L6.11 13.59l5.732-6.09H9a.5.5 0 0 1-.478-.647L9.89 2.41z'/%3E%3C/svg%3E");
}

/* bi-folder2-open */
.bi-folder2-open {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M1 3.5A1.5 1.5 0 0 1 2.5 2h2.764c.958 0 1.76.56 2.311 1.184C7.985 3.648 8.48 4 9 4h4.5A1.5 1.5 0 0 1 15 5.5v.64c.57.265.94.876.856 1.546l-.64 5.124A2.5 2.5 0 0 1 12.733 15H3.266a2.5 2.5 0 0 1-2.481-2.19l-.64-5.124A1.5 1.5 0 0 1 1 6.14zm13 .5v-.5A.5.5 0 0 0 13.5 3H9c-.964 0-1.71-.629-2.174-1.154C6.374 1.334 5.82 1 5.264 1H2.5a.5.5 0 0 0-.5.5V6h12zM2.866 13.682a1.5 1.5 0 0 0 1.489 1.314h7.29a1.5 1.5 0 0 0 1.489-1.314l.64-5.124a.5.5 0 0 0-.496-.562H2.722a.5.5 0 0 0-.496.562z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M1 3.5A1.5 1.5 0 0 1 2.5 2h2.764c.958 0 1.76.56 2.311 1.184C7.985 3.648 8.48 4 9 4h4.5A1.5 1.5 0 0 1 15 5.5v.64c.57.265.94.876.856 1.546l-.64 5.124A2.5 2.5 0 0 1 12.733 15H3.266a2.5 2.5 0 0 1-2.481-2.19l-.64-5.124A1.5 1.5 0 0 1 1 6.14zm13 .5v-.5A.5.5 0 0 0 13.5 3H9c-.964 0-1.71-.629-2.174-1.154C6.374 1.334 5.82 1 5.264 1H2.5a.5.5 0 0 0-.5.5V6h12zM2.866 13.682a1.5 1.5 0 0 0 1.489 1.314h7.29a1.5 1.5 0 0 0 1.489-1.314l.64-5.124a.5.5 0 0 0-.496-.562H2.722a.5.5 0 0 0-.496.562z'/%3E%3C/svg%3E");
}

/* bi-stars */
.bi-stars {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M7.657 6.247c.11-.33.576-.33.686 0l.645 1.937a2.89 2.89 0 0 0 1.829 1.828l1.936.645c.33.11.33.576 0 .686l-1.937.645a2.89 2.89 0 0 0-1.828 1.829l-.645 1.936a.361.361 0 0 1-.686 0l-.645-1.937a2.89 2.89 0 0 0-1.828-1.828l-1.937-.645a.361.361 0 0 1 0-.686l1.937-.645a2.89 2.89 0 0 0 1.828-1.828zM3.794 1.148a.217.217 0 0 1 .412 0l.387 1.162c.173.518.579.924 1.097 1.097l1.162.387a.217.217 0 0 1 0 .412l-1.162.387A1.73 1.73 0 0 0 4.593 5.69l-.387 1.162a.217.217 0 0 1-.412 0L3.407 5.69A1.73 1.73 0 0 0 2.31 4.593l-1.162-.387a.217.217 0 0 1 0-.412l1.162-.387A1.73 1.73 0 0 0 3.407 2.31zM10.863.099a.145.145 0 0 1 .274 0l.258.774c.115.346.386.617.732.732l.774.258a.145.145 0 0 1 0 .274l-.774.258a1.16 1.16 0 0 0-.732.732l-.258.774a.145.145 0 0 1-.274 0l-.258-.774a1.16 1.16 0 0 0-.732-.732L9.1 2.137a.145.145 0 0 1 0-.274l.774-.258c.346-.115.617-.386.732-.732z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M7.657 6.247c.11-.33.576-.33.686 0l.645 1.937a2.89 2.89 0 0 0 1.829 1.828l1.936.645c.33.11.33.576 0 .686l-1.937.645a2.89 2.89 0 0 0-1.828 1.829l-.645 1.936a.361.361 0 0 1-.686 0l-.645-1.937a2.89 2.89 0 0 0-1.828-1.828l-1.937-.645a.361.361 0 0 1 0-.686l1.937-.645a2.89 2.89 0 0 0 1.828-1.828zM3.794 1.148a.217.217 0 0 1 .412 0l.387 1.162c.173.518.579.924 1.097 1.097l1.162.387a.217.217 0 0 1 0 .412l-1.162.387A1.73 1.73 0 0 0 4.593 5.69l-.387 1.162a.217.217 0 0 1-.412 0L3.407 5.69A1.73 1.73 0 0 0 2.31 4.593l-1.162-.387a.217.217 0 0 1 0-.412l1.162-.387A1.73 1.73 0 0 0 3.407 2.31zM10.863.099a.145.145 0 0 1 .274 0l.258.774c.115.346.386.617.732.732l.774.258a.145.145 0 0 1 0 .274l-.774.258a1.16 1.16 0 0 0-.732.732l-.258.774a.145.145 0 0 1-.274 0l-.258-.774a1.16 1.16 0 0 0-.732-.732L9.1 2.137a.145.145 0 0 1 0-.274l.774-.258c.346-.115.617-.386.732-.732z'/%3E%3C/svg%3E");
}

/* bi-image */
.bi-image {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M6.002 5.5a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0'/%3E%3Cpath d='M2.002 1a2 2 0 0 0-2 2v10a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V3a2 2 0 0 0-2-2zm12 1a1 1 0 0 1 1 1v6.5l-3.777-1.947a.5.5 0 0 0-.577.093l-3.71 3.71-2.66-1.772a.5.5 0 0 0-.63.062L1.002 12V3a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M6.002 5.5a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0'/%3E%3Cpath d='M2.002 1a2 2 0 0 0-2 2v10a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V3a2 2 0 0 0-2-2zm12 1a1 1 0 0 1 1 1v6.5l-3.777-1.947a.5.5 0 0 0-.577.093l-3.71 3.71-2.66-1.772a.5.5 0 0 0-.63.062L1.002 12V3a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");
}

/* bi-images */
.bi-images {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.502 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3'/%3E%3Cpath d='M14.002 13a2 2 0 0 1-2 2h-10a2 2 0 0 1-2-2V5A2 2 0 0 1 2 3a2 2 0 0 1 2-2h10a2 2 0 0 1 2 2 2 2 0 0 1 1.998 2zM14 2H4a1 1 0 0 0-1 1h9.002a2 2 0 0 1 2 2v7A1 1 0 0 0 15 11V3a1 1 0 0 0-1-1M2.002 4a1 1 0 0 0-1 1v8l2.646-2.354a.5.5 0 0 1 .63-.062l2.66 1.772 3.71-3.71a.5.5 0 0 1 .577-.094L14.002 9.5V5a1 1 0 0 0-1-1z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.502 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3'/%3E%3Cpath d='M14.002 13a2 2 0 0 1-2 2h-10a2 2 0 0 1-2-2V5A2 2 0 0 1 2 3a2 2 0 0 1 2-2h10a2 2 0 0 1 2 2 2 2 0 0 1 1.998 2zM14 2H4a1 1 0 0 0-1 1h9.002a2 2 0 0 1 2 2v7A1 1 0 0 0 15 11V3a1 1 0 0 0-1-1M2.002 4a1 1 0 0 0-1 1v8l2.646-2.354a.5.5 0 0 1 .63-.062l2.66 1.772 3.71-3.71a.5.5 0 0 1 .577-.094L14.002 9.5V5a1 1 0 0 0-1-1z'/%3E%3C/svg%3E");
}

/* bi-arrows (左右双向箭头，用于对比图拖动手柄) */
.bi-arrows {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M1.146 8.354a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L2.707 7.5h10.586l-2.147-2.146a.5.5 0 0 1 .708-.708l3 3a.5.5 0 0 1 0 .708l-3 3a.5.5 0 0 1-.708-.708L13.293 8.5H2.707l2.147 2.146a.5.5 0 0 1-.708.708z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M1.146 8.354a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L2.707 7.5h10.586l-2.147-2.146a.5.5 0 0 1 .708-.708l3 3a.5.5 0 0 1 0 .708l-3 3a.5.5 0 0 1-.708-.708L13.293 8.5H2.707l2.147 2.146a.5.5 0 0 1-.708.708z'/%3E%3C/svg%3E");
}