/* ============================================
   中国教育学会四库建设 - 统一图标系统
   线性图标风格，适用于政务/教育科技后台
   ============================================ */

/* 图标基础类 */
.icon {
    display: inline-block;
    width: 16px;
    height: 16px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
    flex-shrink: 0;
}

/* 图标尺寸变体 */
.icon-sm { width: 14px; height: 14px; }
.icon-md { width: 16px; height: 16px; }
.icon-lg { width: 20px; height: 20px; }
.icon-xl { width: 24px; height: 24px; }

/* 图标颜色 */
.icon-primary { filter: invert(20%) sepia(60%) saturate(2000%) hue-rotate(190deg) brightness(90%); }
.icon-gray { filter: invert(60%) sepia(0%) saturate(0%) brightness(95%); }
.icon-white { filter: brightness(0) invert(1); }

/* ============================================
   SVG 图标定义（data URI 方式）
   ============================================ */

/* 总览/首页 */
.icon-home {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z'/%3E%3Cpolyline points='9 22 9 12 15 12 15 22'/%3E%3C/svg%3E");
}

/* 专家 */
.icon-expert {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='9' cy='7' r='4'/%3E%3Cpath d='M23 21v-2a4 4 0 0 0-3-3.87'/%3E%3Cpath d='M16 3.13a4 4 0 0 1 0 7.75'/%3E%3C/svg%3E");
}

/* 课程 */
.icon-course {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 成果 */
.icon-achievement {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='8' r='7'/%3E%3Cpolyline points='8.21 13.89 7 23 12 20 17 23 15.79 13.88'/%3E%3C/svg%3E");
}

/* 案例 */
.icon-case {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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%3Cline x1='16' y1='13' x2='8' y2='13'/%3E%3Cline x1='16' y1='17' x2='8' y2='17'/%3E%3Cpolyline points='10 9 9 9 8 9'/%3E%3C/svg%3E");
}

/* AI */
.icon-ai {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='4' y='4' width='16' height='16' rx='2'/%3E%3Ccircle cx='9' cy='10' r='1' fill='%231F5A96'/%3E%3Ccircle cx='15' cy='10' r='1' fill='%231F5A96'/%3E%3Cpath d='M9 16s1 2 3 2 3-2 3-2'/%3E%3C/svg%3E");
}

/* 文档 */
.icon-doc {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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%3C/svg%3E");
}

/* 表格/数据 */
.icon-data {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='18' height='18' rx='2'/%3E%3Cline x1='3' y1='9' x2='21' y2='9'/%3E%3Cline x1='3' y1='15' x2='21' y2='15'/%3E%3Cline x1='9' y1='3' x2='9' y2='21'/%3E%3Cline x1='15' y1='3' x2='15' y2='21'/%3E%3C/svg%3E");
}

/* 图片 */
.icon-image {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 视频 */
.icon-video {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='2' y='2' width='20' height='20' rx='2.18' ry='2.18'/%3E%3Cline x1='7' y1='2' x2='7' y2='22'/%3E%3Cline x1='17' y1='2' x2='17' y2='22'/%3E%3Cline x1='2' y1='12' x2='22' y2='12'/%3E%3Cline x1='2' y1='7' x2='7' y2='7'/%3E%3Cline x1='2' y1='17' x2='7' y2='17'/%3E%3Cline x1='17' y1='7' x2='22' y2='7'/%3E%3Cline x1='17' y1='17' x2='22' y2='17'/%3E%3C/svg%3E");
}

/* 音频 */
.icon-audio {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 链接 */
.icon-link {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 数据标准 */
.icon-standard {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='4' y1='21' x2='4' y2='14'/%3E%3Cline x1='4' y1='10' x2='4' y2='3'/%3E%3Cline x1='12' y1='21' x2='12' y2='12'/%3E%3Cline x1='12' y1='8' x2='12' y2='3'/%3E%3Cline x1='20' y1='21' x2='20' y2='16'/%3E%3Cline x1='20' y1='12' x2='20' y2='3'/%3E%3Cline x1='1' y1='14' x2='7' y2='14'/%3E%3Cline x1='9' y1='8' x2='15' y2='8'/%3E%3Cline x1='17' y1='16' x2='23' y2='16'/%3E%3C/svg%3E");
}

/* 标签 */
.icon-tag {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20.59 13.41l-7.17 7.17a2 2 0 0 1-2.83 0L2 12V2h10l8.59 8.59a2 2 0 0 1 0 2.82z'/%3E%3Cline x1='7' y1='7' x2='7.01' y2='7'/%3E%3C/svg%3E");
}

/* 权限/锁 */
.icon-lock {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 编辑/日志 */
.icon-edit {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 搜索 */
.icon-search {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");
}

/* 下载/导入 */
.icon-download {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 上传/导出 */
.icon-upload {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* API/插件 */
.icon-api {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 2L2 7l10 5 10-5-10-5z'/%3E%3Cpath d='M2 17l10 5 10-5'/%3E%3Cpath d='M2 12l10 5 10-5'/%3E%3C/svg%3E");
}

/* 提示/灯泡 */
.icon-tip {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18h6'/%3E%3Cpath d='M10 22h4'/%3E%3Cpath d='M12 2v1'/%3E%3Cpath d='M17.3 5.3l.7.7'/%3E%3Cpath d='M18 10h1'/%3E%3Cpath d='M17.3 14.7l.7-.7'/%3E%3Cpath d='M12 18v4'/%3E%3Cpath d='M6.7 14.7l-.7-.7'/%3E%3Cpath d='M6 10H5'/%3E%3Cpath d='M6.7 5.3l-.7.7'/%3E%3Ccircle cx='12' cy='10' r='4'/%3E%3C/svg%3E");
}

/* 日期/日历 */
.icon-calendar {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'/%3E%3Cline x1='16' y1='2' x2='16' y2='6'/%3E%3Cline x1='8' y1='2' x2='8' y2='6'/%3E%3Cline x1='3' y1='10' x2='21' y2='10'/%3E%3C/svg%3E");
}

/* 位置/地图 */
.icon-location {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 10c0 7-9 13-9 13s-9-6-9-13a9 9 0 0 1 18 0z'/%3E%3Ccircle cx='12' cy='10' r='3'/%3E%3C/svg%3E");
}

/* 章节/书籍 */
.icon-chapter {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2 3h6a4 4 0 0 1 4 4v14a3 3 0 0 0-3-3H2z'/%3E%3Cpath d='M22 3h-6a4 4 0 0 0-4 4v14a3 3 0 0 1 3-3h7z'/%3E%3C/svg%3E");
}

/* 资源包 */
.icon-package {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='16.5' y1='9.4' x2='7.5' y2='4.21'/%3E%3Cpath d='M21 16V8a2 2 0 0 0-1-1.73l-7-4a2 2 0 0 0-2 0l-7 4A2 2 0 0 0 3 8v8a2 2 0 0 0 1 1.73l7 4a2 2 0 0 0 2 0l7-4A2 2 0 0 0 21 16z'/%3E%3Cpolyline points='3.27 6.96 12 12.01 20.73 6.96'/%3E%3Cline x1='12' y1='22.08' x2='12' y2='12'/%3E%3C/svg%3E");
}

/* 论文 */
.icon-paper {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 课题/实验 */
.icon-research {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 会议 */
.icon-meeting {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M15.6 11.6L22 7v10l-6.4-4.5'/%3E%3Crect x='2' y='7' width='14' height='10' rx='2' ry='2'/%3E%3C/svg%3E");
}

/* 报道/新闻 */
.icon-news {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M19 20H5a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2h10a2 2 0 0 1 2 2v1m0 4v10a2 2 0 0 1-2 2h-6a2 2 0 0 1-2-2V9a2 2 0 0 1 2-2h6'/%3E%3Cline x1='14' y1='4' x2='22' y2='4'/%3E%3Cline x1='14' y1='8' x2='22' y2='8'/%3E%3Cline x1='14' y1='12' x2='18' y2='12'/%3E%3C/svg%3E");
}

/* 审核/检查 */
.icon-check {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='9 11 12 14 22 4'/%3E%3Cpath d='M21 12v7a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11'/%3E%3C/svg%3E");
}

/* 流程/步骤 */
.icon-flow {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpolyline points='12 6 12 12 16 14'/%3E%3C/svg%3E");
}

/* 推荐/箭头 */
.icon-recommend {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='17 11 12 6 7 11'/%3E%3Cline x1='12' y1='6' x2='12' y2='18'/%3E%3C/svg%3E");
}

/* 添加/加号 */
.icon-add {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='12' y1='5' x2='12' y2='19'/%3E%3Cline x1='5' y1='12' x2='19' y2='12'/%3E%3C/svg%3E");
}

/* 关闭/删除 */
.icon-close {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='18' y1='6' x2='6' y2='18'/%3E%3Cline x1='6' y1='6' x2='18' y2='18'/%3E%3C/svg%3E");
}

/* 查看/眼睛 */
.icon-view {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 用户/个人 */
.icon-user {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='12' cy='7' r='4'/%3E%3C/svg%3E");
}

/* 筛选/漏斗 */
.icon-filter {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolygon points='22 3 2 3 10 12.46 10 19 14 21 14 12.46 22 3'/%3E%3C/svg%3E");
}

/* 同步/刷新 */
.icon-sync {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 重置/撤销 */
.icon-reset {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='1 4 1 10 7 10'/%3E%3Cpath d='M3.51 15a9 9 0 1 0 2.13-9.36L1 10'/%3E%3C/svg%3E");
}

/* 文件/附件 */
.icon-attachment {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21.44 11.05l-9.19 9.19a6 6 0 0 1-8.49-8.49l9.19-9.19a4 4 0 0 1 5.66 5.66l-9.2 9.19a2 2 0 0 1-2.83-2.83l8.49-8.48'/%3E%3C/svg%3E");
}

/* 附件/回形针 */
.icon-attachment {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21.44 11.05l-9.19 9.19a6 6 0 0 1-8.49-8.49l9.19-9.19a4 4 0 0 1 5.66 5.66l-9.2 9.19a2 2 0 0 1-2.83-2.83l8.49-8.48'/%3E%3C/svg%3E");
}

/* 关键词/钥匙 */
.icon-key {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 2l-2 2m-7.61 7.61a5.5 5.5 0 1 1-7.778 7.778 5.5 5.5 0 0 1 7.777-7.777l5.12-5.12a2 2 0 1 1 2.828 2.828L11.828 14.828a2 2 0 1 0 2.828 2.828l5.658-5.657a4 4 0 0 0-5.657-5.657L8.879 10.12a4 4 0 1 0 5.657 5.657L15.414 14.1'/%3E%3C/svg%3E");
}

/* 警告 */
.icon-warning {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 统计/图表 */
.icon-chart {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 导出按钮（深色背景用） */
.icon-download-white {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 导航图标容器（用于侧边栏） */
.nav-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    margin-right: 8px;
    flex-shrink: 0;
}

/* 按钮内图标 */
.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    margin-right: 4px;
    flex-shrink: 0;
}

/* 标题内图标（h3, h4 等标题中的图标） */
h3 .icon,
h4 .icon {
    width: 18px;
    height: 18px;
    vertical-align: middle;
    margin-right: 6px;
}

h3 .icon {
    width: 18px;
    height: 18px;
}

h4 .icon {
    width: 16px;
    height: 16px;
}

/* 卡片图标（入口卡片等） */
.entry-card .icon-text .icon {
    width: 40px;
    height: 40px;
}

/* 上传区域大图标 */
.upload-icon .icon {
    width: 36px;
    height: 36px;
}

/* 资源图标 */
.resource-icon .icon {
    width: 20px;
    height: 20px;
}

/* 统一支撑能力页面图标 */
.support-icon .icon {
    width: 32px;
    height: 32px;
}

/* 列表/条目 */
.icon-list {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 星标/评价 */
.icon-star {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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");
}

/* 费用/金额 */
.icon-fee {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='12' y1='1' x2='12' y2='23'/%3E%3Cpath d='M17 5H9.5a3.5 3.5 0 0 0 0 7h5a3.5 3.5 0 0 1 0 7H6'/%3E%3C/svg%3E");
}

/* 发布/上线 */
.icon-publish {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 12v8a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2v-8'/%3E%3Cpolyline points='16 6 12 2 8 6'/%3E%3Cline x1='12' y1='2' x2='12' y2='15'/%3E%3C/svg%3E");
}

/* 地图/区域 */
.icon-map {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolygon points='1 6 1 22 8 18 16 22 23 18 23 2 16 6 8 2 1 6'/%3E%3Cline x1='8' y1='2' x2='8' y2='18'/%3E%3Cline x1='16' y1='6' x2='16' y2='22'/%3E%3C/svg%3E");
}

/* 群组/分组 */
.icon-group {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F5A96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='9' cy='7' r='4'/%3E%3Cpath d='M23 21v-2a4 4 0 0 0-3-3.87'/%3E%3Cpath d='M16 3.13a4 4 0 0 1 0 7.75'/%3E%3C/svg%3E");
}