/* 本地图标库 - Font Awesome 兼容 SVG 图标 */

.icon {
    display: inline-block;
    width: 1em;
    height: 1em;
    vertical-align: middle;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.fas, .fa {
    display: inline-block;
    line-height: 1;
    vertical-align: baseline;
    font-style: normal;
    text-decoration: none;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* SVG 图标定义 */
.fa-arrow-left::before, .fas.fa-arrow-left::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M20 11H7.83l5.59-5.59L12 4l-8 8 8 8 1.42-1.41L7.83 13H20v-2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-image::before, .fas.fa-image::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M21 19V5c0-1.1-.9-2-2-2H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2zM8.5 13.5l2.5 3.01L14.5 12l4.5 6H5l3.5-4.5z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-chart-line::before, .fas.fa-chart-line::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23667eea'%3E%3Cpath d='M16 6l2.29 2.29-4.88 4.88-4-4L2 16.59 3.41 18l6-6 4 4 6.3-6.29L22 12V6h-6z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-box::before, .fas.fa-box::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23f093fb'%3E%3Cpath d='M12,2L2,7V17A3,3 0 0,0 5,20H19A3,3 0 0,0 22,17V7L12,2M12,4.84L17.5,7.5L12,10.16L6.5,7.5L12,4.84M11,12.5V18.5H5A1,1 0 0,1 4,17.5V9.5L11,12.5M13,12.5L20,9.5V17.5A1,1 0 0,1 19,18.5H13V12.5Z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-fire::before, .fas.fa-fire::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ff6b6b'%3E%3Cpath d='M17.6 11.48A3.06 3.06 0 0 0 16 8.82A3.86 3.86 0 0 1 17.6 12c1.66 2.24 1.66 5.24 0 7.48A7 7 0 0 1 8.4 12C6.74 9.76 6.74 6.76 8.4 4.52A7 7 0 0 1 17.6 11.48Z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-magic::before, .fas.fa-magic::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2343e97b'%3E%3Cpath d='M7.5,5.6L5,7L6.4,4.5L5,2L7.5,3.4L10,2L8.6,4.5L10,7L7.5,5.6M19.5,15.4L22,14L20.6,16.5L22,19L19.5,17.6L17,19L18.4,16.5L17,14L19.5,15.4M22,2L20.6,4.5L22,7L19.5,5.6L17,7L18.4,4.5L17,2L19.5,3.4L22,2M13.34,12.78L15.78,10.34L13.66,8.22L11.22,10.66L13.34,12.78M14.37,7.29L16.71,9.63C17.1,10 17.1,10.65 16.71,11.04L5.04,22.71C4.65,23.1 4,23.1 3.63,22.71L1.29,20.37C0.9,20 0.9,19.35 1.29,18.96L12.96,7.29C13.35,6.9 14,6.9 14.37,7.29Z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-share-alt::before, .fas.fa-share-alt::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ff6b6b'%3E%3Cpath d='M18,16.08C17.24,16.08 16.56,16.38 16.04,16.85L8.91,12.7C8.96,12.47 9,12.24 9,12C9,11.76 8.96,11.53 8.91,11.3L15.96,7.19C16.5,7.69 17.21,8 18,8A3,3 0 0,0 21,5A3,3 0 0,0 18,2A3,3 0 0,0 15,5C15,5.24 15.04,5.47 15.09,5.7L8.04,9.81C7.5,9.31 6.79,9 6,9A3,3 0 0,0 3,12A3,3 0 0,0 6,15C6.79,15 7.5,14.69 8.04,14.19L15.16,18.34C15.11,18.55 15.08,18.77 15.08,19C15.08,20.61 16.39,21.91 18,21.91C19.61,21.91 20.92,20.61 20.92,19A2.92,2.92 0 0,0 18,16.08Z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-user-chart::before, .fas.fa-user-chart::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M12 12c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm0 2c-2.67 0-8 1.34-8 4v2h16v-2c0-2.66-5.33-4-8-4zm8-10h-4v2h4v4h2V6c0-1.1-.9-2-2-2zm0 8h-2v4h-4v2h4c1.1 0 2-.9 2-2v-4z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-binoculars::before, .fas.fa-binoculars::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M7 8c-2.21 0-4 1.79-4 4s1.79 4 4 4 4-1.79 4-4-1.79-4-4-4zm0 6c-1.1 0-2-.9-2-2s.9-2 2-2 2 .9 2 2-.9 2-2 2zm10-6c-2.21 0-4 1.79-4 4s1.79 4 4 4 4-1.79 4-4-1.79-4-4-4zm0 6c-1.1 0-2-.9-2-2s.9-2 2-2 2 .9 2 2-.9 2-2 2zM12 6h-1V4h1v2zm0 2h-1v2h1V8z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-target-arrow::before, .fas.fa-target-arrow::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ff4757'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.42 0-8-3.58-8-8s3.58-8 8-8 8 3.58 8 8-3.58 8-8 8zm0-14c-3.31 0-6 2.69-6 6s2.69 6 6 6 6-2.69 6-6-2.69-6-6-6zm0 10c-2.21 0-4-1.79-4-4s1.79-4 4-4 4 1.79 4 4-1.79 4-4 4zm0-6c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-gift-box::before, .fas.fa-gift-box::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ee5a6f'%3E%3Cpath d='M20 6h-2.18c.11-.31.18-.65.18-1 0-1.66-1.34-3-3-3-1.05 0-1.96.54-2.5 1.35l-.5.67-.5-.68C10.96 2.54 10.05 2 9 2 7.34 2 6 3.34 6 5c0 .35.07.69.18 1H4c-1.11 0-1.99.89-1.99 2L2 19c0 1.11.89 2 2 2h16c1.11 0 2-.89 2-2V8c0-1.11-.89-2-2-2zm-5-2c.55 0 1 .45 1 1s-.45 1-1 1-1-.45-1-1 .45-1 1-1zM9 4c.55 0 1 .45 1 1s-.45 1-1 1-1-.45-1-1 .45-1 1-1zm11 15H4v-2h16v2zm0-5H4V8h5.08L7 10.83 8.62 12 11 8.76l1-1.36 1 1.36L15.38 12 17 10.83 14.92 8H20v6z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-sparkles::before, .fas.fa-sparkles::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ff6348'%3E%3Cpath d='M7 1l2.5 5L15 8.5 9.5 11 7 16l-2.5-5L-1 8.5 4.5 6 7 1zm12 6l1.5 3 3 1.5-3 1.5-1.5 3-1.5-3-3-1.5 3-1.5L19 7zm-7 7l2 4 4 2-4 2-2 4-2-4-4-2 4-2 2-4z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-comments::before, .fas.fa-comments::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ff6b6b'%3E%3Cpath d='M21 6h-2V3c0-1.1-.9-2-2-2H3c-1.1 0-2 .9-2 2v14l4-4h6v3c0 1.1.9 2 2 2h6l4 4V8c0-1.1-.9-2-2-2zm-4 5H7V9h10v2zm0-3H7V6h10v2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-wand-magic::before, .fas.fa-wand-magic::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ff4757'%3E%3Cpath d='M7.5 5.6L5 7l1.4-2.5L5 2l2.5 1.4L10 2 8.6 4.5 10 7 7.5 5.6zM19.5 15.4L22 14l-1.4-2.5L22 9l-2.5 1.4L17 9l1.4 2.5L17 14l2.5-1.4zM22 2l-1.4 2.5L22 7l-2.5-1.4L17 7l1.4-2.5L17 2l2.5 1.4L22 2zM14.37 7.29l-7.5 7.5c-.39.39-.39 1.02 0 1.41l2.93 2.93c.39.39 1.02.39 1.41 0l7.5-7.5c.39-.39.39-1.02 0-1.41l-2.93-2.93c-.38-.39-1.02-.39-1.41 0z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-video-play::before, .fas.fa-video-play::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ee5a6f'%3E%3Cpath d='M17 10.5V7c0-.55-.45-1-1-1H4c-.55 0-1 .45-1 1v10c0 .55.45 1 1 1h12c.55 0 1-.45 1-1v-3.5l4 4v-11l-4 4zM10 15l-3.89-2.25v-1.5L10 9v6z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

/* 抖音功能区域图标覆盖 - 黑色系 */
#douyinFeatures .fa-chart-line::before,
#douyinFeatures .fas.fa-chart-line::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000000'%3E%3Cpath d='M16 6l2.29 2.29-4.88 4.88-4-4L2 16.59 3.41 18l6-6 4 4 6.3-6.29L22 12V6h-6z'/%3E%3C/svg%3E");
}

#douyinFeatures .fa-fire::before,
#douyinFeatures .fas.fa-fire::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000000'%3E%3Cpath d='M17.6 11.48A3.06 3.06 0 0 0 16 8.82A3.86 3.86 0 0 1 17.6 12c1.66 2.24 1.66 5.24 0 7.48A7 7 0 0 1 8.4 12C6.74 9.76 6.74 6.76 8.4 4.52A7 7 0 0 1 17.6 11.48Z'/%3E%3C/svg%3E");
}

#douyinFeatures .fa-user-chart::before,
#douyinFeatures .fas.fa-user-chart::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000000'%3E%3Cpath d='M12 12c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm0 2c-2.67 0-8 1.34-8 4v2h16v-2c0-2.66-5.33-4-8-4zm8-10h-4v2h4v4h2V6c0-1.1-.9-2-2-2zm0 8h-2v4h-4v2h4c1.1 0 2-.9 2-2v-4z'/%3E%3C/svg%3E");
}

#douyinFeatures .fa-binoculars::before,
#douyinFeatures .fas.fa-binoculars::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000000'%3E%3Cpath d='M7 8c-2.21 0-4 1.79-4 4s1.79 4 4 4 4-1.79 4-4-1.79-4-4-4zm0 6c-1.1 0-2-.9-2-2s.9-2 2-2 2 .9 2 2-.9 2-2 2zm10-6c-2.21 0-4 1.79-4 4s1.79 4 4 4 4-1.79 4-4-1.79-4-4-4zm0 6c-1.1 0-2-.9-2-2s.9-2 2-2 2 .9 2 2-.9 2-2 2zM12 6h-1V4h1v2zm0 2h-1v2h1V8z'/%3E%3C/svg%3E");
}

/* 底部导航图标 */
.fa-plus-circle::before, .fas.fa-plus-circle::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2310b981'%3E%3Cpath d='M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2M17,13H13V17H11V13H7V11H11V7H13V11H17V13Z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-robot::before, .fas.fa-robot::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%233b82f6'%3E%3Cpath d='M12,2A2,2 0 0,1 14,4C14,4.74 13.6,5.39 13,5.73V7H14A7,7 0 0,1 21,14H22A1,1 0 0,1 23,15V18A1,1 0 0,1 22,19H21V20A2,2 0 0,1 19,22H5A2,2 0 0,1 3,20V19H2A1,1 0 0,1 1,18V15A1,1 0 0,1 2,14H3A7,7 0 0,1 10,7H11V5.73C10.4,5.39 10,4.74 10,4A2,2 0 0,1 12,2M7.5,13A2.5,2.5 0 0,0 5,15.5A2.5,2.5 0 0,0 7.5,18A2.5,2.5 0 0,0 10,15.5A2.5,2.5 0 0,0 7.5,13M16.5,13A2.5,2.5 0 0,0 14,15.5A2.5,2.5 0 0,0 16.5,18A2.5,2.5 0 0,0 19,15.5A2.5,2.5 0 0,0 16.5,13Z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-layer-group::before, .fas.fa-layer-group::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%238b5cf6'%3E%3Cpath d='M12,16L19.36,10.27L21,9L12,2L3,9L4.63,10.27M12,18.54L4.62,12.81L3,14.07L12,21.07L21,14.07L19.37,12.8L12,18.54Z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-user::before, .fas.fa-user::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23f59e0b'%3E%3Cpath d='M12,4A4,4 0 0,1 16,8A4,4 0 0,1 12,12A4,4 0 0,1 8,8A4,4 0 0,1 12,4M12,14C16.42,14 20,15.79 20,18V20H4V18C4,15.79 7.58,14 12,14Z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

/* 通用图标 */
.fa-search::before, .fas.fa-search::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M15.5 14h-.79l-.28-.27A6.471 6.471 0 0 0 16 9.5 6.5 6.5 0 1 0 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-plus::before, .fas.fa-plus::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M19 13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-minus::before, .fas.fa-minus::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M19 13H5v-2h14v2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-cloud-upload-alt::before, .fas.fa-cloud-upload-alt::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M14,2H6A2,2 0 0,0 4,4V20A2,2 0 0,0 6,22H18A2,2 0 0,0 20,20V8L14,2M18,20H6V4H13V9H18V20Z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-times::before, .fas.fa-times::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-rocket::before, .fas.fa-rocket::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M2.81,14.12L5.64,11.29L8.17,10.79C11.39,6.41 16.8,4.16 19.78,4.04C19.66,7.02 17.41,12.43 13.03,15.65L12.53,18.18L9.7,21.01C9.45,21.26 9.06,21.26 8.81,21.01L7.39,19.59C7.14,19.34 7.14,18.95 7.39,18.7L10.92,15.17L11,10.11L5.91,10.21L2.81,13.31C2.56,13.56 2.56,13.95 2.81,14.2L2.81,14.12Z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-spinner::before, .fas.fa-spinner::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12,4V2A10,10 0 0,0 2,12H4A8,8 0 0,1 12,4Z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
    animation: fa-spin 1s linear infinite;
}

.fa-check::before, .fas.fa-check::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%234ade80'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-exclamation-triangle::before, .fas.fa-exclamation-triangle::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23f59e0b'%3E%3Cpath d='M1 21h22L12 2 1 21zm12-3h-2v-2h2v2zm0-4h-2v-4h2v4z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-info-circle::before, .fas.fa-info-circle::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%233b82f6'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm1 15h-2v-6h2v6zm0-8h-2V7h2v2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-eye::before, .fas.fa-eye::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 4.5C7 4.5 2.73 7.61 1 12c1.73 4.39 6 7.5 11 7.5s9.27-3.11 11-7.5c-1.73-4.39-6-7.5-11-7.5zM12 17c-2.76 0-5-2.24-5-5s2.24-5 5-5 5 2.24 5 5-2.24 5-5 5zm0-8c-1.66 0-3 1.34-3 3s1.34 3 3 3 3-1.34 3-3-1.34-3-3-3z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

/* 字符图标 */
.fa-download::before, .fas.fa-download::before {
    content: "⬇";
    font-weight: bold;
}

.fa-upload::before, .fas.fa-upload::before {
    content: "⬆";
    font-weight: bold;
}

.fa-redo::before, .fas.fa-redo::before {
    content: "↻";
    font-weight: bold;
}

.fa-arrow-up::before, .fas.fa-arrow-up::before {
    content: "↑";
    font-weight: bold;
}

.fa-play::before, .fas.fa-play::before {
    content: "▶";
}

.fa-pause::before, .fas.fa-pause::before {
    content: "⏸";
}

.fa-stop::before, .fas.fa-stop::before {
    content: "⏹";
}

.fa-heart::before, .fas.fa-heart::before {
    content: "♥";
    color: #ef4444;
}

.fa-star::before, .fas.fa-star::before {
    content: "★";
    color: #eab308;
}

.fa-share::before, .fas.fa-share::before {
    content: "↗";
    font-weight: bold;
}

/* 更多 SVG 图标 */
.fa-copy::before, .fas.fa-copy::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm3 4H8c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h11c1.1 0 2-.9 2-2V7c0-1.1-.9-2-2-2zm0 16H8V7h11v14z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-pen::before, .fas.fa-pen::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M3 17.25V21h3.75L17.81 9.94l-3.75-3.75L3 17.25zM20.71 7.04c.39-.39.39-1.02 0-1.41l-2.34-2.34c-.39-.39-1.02-.39-1.41 0l-1.83 1.83 3.75 3.75 1.83-1.83z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-feather-alt::before, .fas.fa-feather-alt::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M20.24 12.24a6 6 0 0 0-8.49-8.49L5 10.5V19h8.5l6.74-6.76zM13 7.5a.5.5 0 1 1 0 1 .5.5 0 0 1 0-1zM6 18v-7.5l1.5-1.5L12 13.5 18.5 7a.5.5 0 0 1 .5.5L13.5 13 9 8.5 6 11.5V18z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-clipboard-check::before, .fas.fa-clipboard-check::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M19 3h-4.18C14.4 1.84 13.3 1 12 1s-2.4.84-2.82 2H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm-7 0c.55 0 1 .45 1 1s-.45 1-1 1-1-.45-1-1 .45-1 1-1zm-2 14l-4-4 1.41-1.41L10 14.17l6.59-6.59L18 9l-8 8z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-droplet::before, .fas.fa-droplet::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 2l-8 9c0 4.4 3.6 8 8 8s8-3.6 8-8l-8-9zm4 13c-.6.6-1.3 1-2.1 1.2l-.9.2-.9-.2c-.8-.2-1.5-.6-2.1-1.2-.6-.6-1-1.3-1.2-2.1l-.2-.9.2-.9c.2-.8.6-1.5 1.2-2.1L12 6l2.1 2.1c.6.6 1 1.3 1.2 2.1l.2.9-.2.9c-.2.8-.6 1.5-1.2 2.1z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-edit::before, .fas.fa-edit::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M3 17.25V21h3.75L17.81 9.94l-3.75-3.75L3 17.25zM20.71 7.04c.39-.39.39-1.02 0-1.41l-2.34-2.34c-.39-.39-1.02-.39-1.41 0l-1.83 1.83 3.75 3.75 1.83-1.83z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-caret-down::before, .fas.fa-caret-down::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5z' fill='currentColor'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-chevron-down::before, .fas.fa-chevron-down::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M7.41 8.59L12 13.17l4.59-4.58L18 10l-6 6-6-6 1.41-1.41z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-eye-slash::before, .fas.fa-eye-slash::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 7c2.76 0 5 2.24 5 5 0 .65-.13 1.26-.36 1.83l2.92 2.92c1.51-1.26 2.7-2.89 3.43-4.75-1.73-4.39-6-7.5-11-7.5-1.4 0-2.74.25-3.98.7l2.16 2.16C10.74 7.13 11.35 7 12 7zM2 4.27l2.28 2.28.46.46C3.08 8.3 1.78 10.02 1 12c1.73 4.39 6 7.5 11 7.5 1.55 0 3.03-.3 4.38-.84l.42.42L19.73 22 21 20.73 3.27 3 2 4.27zM7.53 9.8l1.55 1.55c-.05.21-.08.43-.08.65 0 1.66 1.34 3 3 3 .22 0 .44-.03.65-.08l1.55 1.55c-.67.33-1.41.53-2.2.53-2.76 0-5-2.24-5-5 0-.79.2-1.53.53-2.2zm4.31-.78l3.15 3.15.02-.16c0-1.66-1.34-3-3-3l-.17.01z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-cog::before, .fas.fa-cog::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M19.14 12.94c.04-.31.06-.63.06-.94 0-.31-.02-.63-.06-.94l2.03-1.58c.18-.14.23-.41.12-.61l-1.92-3.32c-.12-.22-.37-.29-.59-.22l-2.39.96c-.5-.38-1.03-.7-1.62-.94l-.36-2.54c-.04-.24-.24-.41-.48-.41h-3.84c-.24 0-.43.17-.47.41l-.36 2.54c-.59.24-1.13.57-1.62.94l-2.39-.96c-.22-.08-.47 0-.59.22L2.74 8.87c-.12.21-.08.47.12.61l2.03 1.58c-.04.31-.06.63-.06.94s.02.63.06.94l-2.03 1.58c-.18.14-.23.41-.12.61l1.92 3.32c.12.22.37.29.59.22l2.39-.96c.5.38 1.03.7 1.62.94l.36 2.54c.05.24.24.41.48.41h3.84c.24 0 .44-.17.47-.41l.36-2.54c.59-.24 1.13-.56 1.62-.94l2.39.96c.22.08.47 0 .59-.22l1.92-3.32c.12-.22.07-.47-.12-.61l-2.01-1.58zM12 15.6c-1.98 0-3.6-1.62-3.6-3.6s1.62-3.6 3.6-3.6 3.6 1.62 3.6 3.6-1.62 3.6-3.6 3.6z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-trash::before, .fas.fa-trash::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M6 19c0 1.1.9 2 2 2h8c1.1 0 2-.9 2-2V7H6v12zM19 4h-3.5l-1-1h-5l-1 1H5v2h14V4z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-folder::before, .fas.fa-folder::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M10 4H4c-1.1 0-1.99.9-1.99 2L2 18c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V8c0-1.1-.9-2-2-2h-8l-2-2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-file::before, .fas.fa-file::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M14 2H6c-1.1 0-1.99.9-1.99 2L4 20c0 1.1.89 2 1.99 2H18c1.1 0 2-.9 2-2V8l-6-6zm-1 7V3.5L18.5 9H13z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-globe::before, .fas.fa-globe::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M11.99 2C6.47 2 2 6.48 2 12s4.47 10 9.99 10C17.52 22 22 17.52 22 12S17.52 2 11.99 2zm6.93 6h-2.95c-.32-1.25-.78-2.45-1.38-3.56 1.84.63 3.37 1.91 4.33 3.56zM12 4.04c.83 1.2 1.48 2.53 1.91 3.96h-3.82c.43-1.43 1.08-2.76 1.91-3.96zM4.26 14C4.1 13.36 4 12.69 4 12s.1-1.36.26-2h3.38c-.08.66-.14 1.32-.14 2s.06 1.34.14 2H4.26zm.82 2h2.95c.32 1.25.78 2.45 1.38 3.56-1.84-.63-3.37-1.9-4.33-3.56zm2.95-8H5.08c.96-1.66 2.49-2.93 4.33-3.56C8.81 5.55 8.35 6.75 8.03 8zM12 19.96c-.83-1.2-1.48-2.53-1.91-3.96h3.82c-.43 1.43-1.08 2.76-1.91 3.96zM14.34 14H9.66c-.09-.66-.16-1.32-.16-2s.07-1.35.16-2h4.68c.09.65.16 1.32.16 2s-.07 1.34-.16 2zm.25 5.56c.6-1.11 1.06-2.31 1.38-3.56h2.95c-.96 1.65-2.49 2.93-4.33 3.56zM16.36 14c.08-.66.14-1.32.14-2s-.06-1.34-.14-2h3.38c.16.64.26 1.31.26 2s-.1 1.36-.26 2h-3.38z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-phone::before, .fas.fa-phone::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M20.01 15.38c-1.23 0-2.42-.2-3.53-.56-.35-.12-.74-.03-1.01.24l-1.57 1.97c-2.83-1.35-5.48-3.9-6.89-6.83l1.95-1.66c.27-.28.35-.67.24-1.02-.37-1.11-.56-2.3-.56-3.53 0-.54-.45-.99-.99-.99H4.19C3.65 3 3 3.24 3 3.99 3 13.28 10.73 21 20.01 21c.71 0 .99-.63.99-1.18v-3.45c0-.54-.45-.99-.99-.99z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-envelope::before, .fas.fa-envelope::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M20 4H4c-1.1 0-1.99.9-1.99 2L2 18c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2zm0 4l-8 5-8-5V6l8 5 8-5v2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-home::before, .fas.fa-home::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M10 20v-6h4v6h5v-8h3L12 3 2 12h3v8z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-calendar::before, .fas.fa-calendar::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M19 3h-1V1h-2v2H8V1H6v2H5c-1.11 0-1.99.9-1.99 2L3 19c0 1.1.89 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm0 16H5V8h14v11zM9 10H7v2h2v-2zm4 0h-2v2h2v-2zm4 0h-2v2h2v-2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-clock::before, .fas.fa-clock::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M11.99 2C6.47 2 2 6.48 2 12s4.47 10 9.99 10C17.52 22 22 17.52 22 12S17.52 2 11.99 2zM12 20c-4.42 0-8-3.58-8-8s3.58-8 8-8 8 3.58 8 8-3.58 8-8 8zm.5-13H11v6l5.25 3.15.75-1.23-4.5-2.67V7z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-bookmark::before, .fas.fa-bookmark::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M17 3H7c-1.1 0-1.99.9-1.99 2L5 21l7-3 7 3V5c0-1.1-.9-2-2-2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-tag::before, .fas.fa-tag::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M21.41 11.58l-9-9C12.05 2.22 11.55 2 11 2H4c-1.1 0-2 .9-2 2v7c0 .55.22 1.05.59 1.42l9 9c.36.36.86.58 1.41.58.55 0 1.05-.22 1.41-.59l7-7c.37-.36.59-.86.59-1.41 0-.55-.23-1.06-.59-1.42zM5.5 7C4.67 7 4 6.33 4 5.5S4.67 4 5.5 4 7 4.67 7 5.5 6.33 7 5.5 7z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-lock::before, .fas.fa-lock::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M18 8h-1V6c0-2.76-2.24-5-5-5S7 3.24 7 6v2H6c-1.1 0-2 .9-2 2v10c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V10c0-1.1-.9-2-2-2zm-6 9c-1.1 0-2-.9-2-2s.9-2 2-2 2 .9 2 2-.9 2-2 2zm3.1-9H8.9V6c0-1.71 1.39-3.1 3.1-3.1 1.71 0 3.1 1.39 3.1 3.1v2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-unlock::before, .fas.fa-unlock::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 17c1.1 0 2-.9 2-2s-.9-2-2-2-2 .9-2 2 .9 2 2 2zm6-9h-1V6c0-2.76-2.24-5-5-5S7 3.24 7 6h1.9c0-1.71 1.39-3.1 3.1-3.1 1.71 0 3.1 1.39 3.1 3.1v2H6c-1.1 0-2 .9-2 2v10c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V10c0-1.1-.9-2-2-2zm0 12H6V10h12v10z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-link::before, .fas.fa-link::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

/* 视频详情页图标 */
.fa-map-marked-alt::before, .fas.fa-map-marked-alt::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 2C8.13 2 5 5.13 5 9c0 5.25 7 13 7 13s7-7.75 7-13c0-3.87-3.13-7-7-7zm0 9.5c-1.38 0-2.5-1.12-2.5-2.5s1.12-2.5 2.5-2.5 2.5 1.12 2.5 2.5-1.12 2.5-2.5 2.5z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-venus-mars::before, .fas.fa-venus-mars::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M9.5 11c1.93 0 3.5 1.57 3.5 3.5S11.43 18 9.5 18 6 16.43 6 14.5 7.57 11 9.5 11zM9.5 9C6.46 9 4 11.46 4 14.5S6.46 20 9.5 20s5.5-2.46 5.5-5.5c0-1.16-.36-2.23-.97-3.12L18 7.42V10h2V4h-6v2h2.58l-3.97 3.97C11.73 9.36 10.66 9 9.5 9z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-users::before, .fas.fa-users::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M16 11c1.66 0 2.99-1.34 2.99-3S17.66 5 16 5c-1.66 0-3 1.34-3 3s1.34 3 3 3zm-8 0c1.66 0 2.99-1.34 2.99-3S9.66 5 8 5C6.34 5 5 6.34 5 8s1.34 3 3 3zm0 2c-2.33 0-7 1.17-7 3.5V19h14v-2.5c0-2.33-4.67-3.5-7-3.5zm8 0c-.29 0-.62.02-.97.05 1.16.84 1.97 1.97 1.97 3.45V19h6v-2.5c0-2.33-4.67-3.5-7-3.5z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-fire-alt::before, .fas.fa-fire-alt::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ff6b6b'%3E%3Cpath d='M13.5.67s.74 2.65.74 4.8c0 2.06-1.35 3.73-3.41 3.73-2.07 0-3.63-1.67-3.63-3.73l.03-.36C5.21 7.51 4 10.62 4 14c0 4.42 3.58 8 8 8s8-3.58 8-8C20 8.61 17.41 3.8 13.5.67zM11.71 19c-1.78 0-3.22-1.4-3.22-3.14 0-1.62 1.05-2.76 2.81-3.12 1.77-.36 3.6-1.21 4.62-2.58.39 1.29.28 2.67-.2 3.73-.74 1.67-2.23 2.72-4.01 2.72z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

/* 侧边栏图标 */
.fa-tachometer-alt::before, .fas.fa-tachometer-alt::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.42 0-8-3.58-8-8s3.58-8 8-8 8 3.58 8 8-3.58 8-8 8zm3.5-9c.83 0 1.5-.67 1.5-1.5S16.33 8 15.5 8 14 8.67 14 9.5s.67 1.5 1.5 1.5zm-7 0c.83 0 1.5-.67 1.5-1.5S9.33 8 8.5 8 7 8.67 7 9.5 7.67 11 8.5 11zm3.5 6.5c2.33 0 4.31-1.46 5.11-3.5H6.89c.8 2.04 2.78 3.5 5.11 3.5z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-key::before, .fas.fa-key::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12.65 10C11.83 7.67 9.61 6 7 6c-3.31 0-6 2.69-6 6s2.69 6 6 6c2.61 0 4.83-1.67 5.65-4H17v4h4v-4h2v-4H12.65zM7 14c-1.1 0-2-.9-2-2s.9-2 2-2 2 .9 2 2-.9 2-2 2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-ticket-alt::before, .fas.fa-ticket-alt::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M22 10V6c0-1.1-.9-2-2-2H4c-1.1 0-2 .9-2 2v4c1.1 0 2 .9 2 2s-.9 2-2 2v4c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2v-4c-1.1 0-2-.9-2-2s.9-2 2-2zm-9 7.5h-2v-2h2v2zm0-4.5h-2v-2h2v2zm0-4.5h-2v-2h2v2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-bullhorn::before, .fas.fa-bullhorn::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M18 11v2h4v-2h-4zm-2 6.61c.96.71 2.21 1.65 3.2 2.39.4-.53.8-1.07 1.2-1.6-.99-.74-2.24-1.68-3.2-2.4-.4.54-.8 1.08-1.2 1.61zM20.4 5.6c-.4-.53-.8-1.07-1.2-1.6-.99.74-2.24 1.68-3.2 2.4.4.53.8 1.07 1.2 1.6.96-.72 2.21-1.65 3.2-2.4zM4 9c-1.1 0-2 .9-2 2v2c0 1.1.9 2 2 2h1v4h2v-4h1l5 3V6L8 9H4zm11.5 3c0-1.33-.58-2.53-1.5-3.35v6.69c.92-.81 1.5-2.01 1.5-3.34z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-history::before, .fas.fa-history::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M13 3c-4.97 0-9 4.03-9 9H1l3.89 3.89.07.14L9 12H6c0-3.87 3.13-7 7-7s7 3.13 7 7-3.13 7-7 7c-1.93 0-3.68-.79-4.94-2.06l-1.42 1.42C8.27 19.99 10.51 21 13 21c4.97 0 9-4.03 9-9s-4.03-9-9-9zm-1 5v5l4.28 2.54.72-1.21-3.5-2.08V8H12z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-shield-alt::before, .fas.fa-shield-alt::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm0 10.99h7c-.53 4.12-3.28 7.79-7 8.94V12H5V6.3l7-3.11v8.8z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-comment-dots::before, .fas.fa-comment-dots::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M21 6h-2v9H6v2c0 .55.45 1 1 1h11l4 4V7c0-.55-.45-1-1-1zm-4 6V3c0-.55-.45-1-1-1H3c-.55 0-1 .45-1 1v14l4-4h10c.55 0 1-.45 1-1zm-9-2.5c0 .83-.67 1.5-1.5 1.5S5 10.33 5 9.5 5.67 8 6.5 8 8 8.67 8 9.5zm3 0c0 .83-.67 1.5-1.5 1.5S8 10.33 8 9.5 8.67 8 9.5 8s1.5.67 1.5 1.5zm3 0c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5.67-1.5 1.5-1.5 1.5.67 1.5 1.5z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-plug::before, .fas.fa-plug::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M16 9V4h1c.55 0 1-.45 1-1s-.45-1-1-1H7c-.55 0-1 .45-1 1s.45 1 1 1h1v5c0 1.66-1.34 3-3 3v2h5.97v7l1 1 1-1v-7H19v-2c-1.66 0-3-1.34-3-3z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-toggle-on::before, .fas.fa-toggle-on::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M17 7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h10c2.76 0 5-2.24 5-5s-2.24-5-5-5zm0 8c-1.66 0-3-1.34-3-3s1.34-3 3-3 3 1.34 3 3-1.34 3-3 3z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-user-astronaut::before, .fas.fa-user-astronaut::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 3c1.66 0 3 1.34 3 3s-1.34 3-3 3-3-1.34-3-3 1.34-3 3-3zm0 14.2c-2.5 0-4.71-1.28-6-3.22.03-1.99 4-3.08 6-3.08 1.99 0 5.97 1.09 6 3.08-1.29 1.94-3.5 3.22-6 3.22z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-video::before, .fas.fa-video::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M17 10.5V7c0-.55-.45-1-1-1H4c-.55 0-1 .45-1 1v10c0 .55.45 1 1 1h12c.55 0 1-.45 1-1v-3.5l4 4v-11l-4 4z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-clone::before, .fas.fa-clone::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4l6 6v10c0 1.1-.9 2-2 2H7.99C6.89 23 6 22.1 6 21l.01-14c0-1.1.89-2 1.99-2h7zm-1 7h5.5L14 6.5V12z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-user-circle::before, .fas.fa-user-circle::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 3c1.66 0 3 1.34 3 3s-1.34 3-3 3-3-1.34-3-3 1.34-3 3-3zm0 14.2c-2.5 0-4.71-1.28-6-3.22.03-1.99 4-3.08 6-3.08 1.99 0 5.97 1.09 6 3.08-1.29 1.94-3.5 3.22-6 3.22z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-users-cog::before, .fas.fa-users-cog::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M16 11c1.66 0 2.99-1.34 2.99-3S17.66 5 16 5c-1.66 0-3 1.34-3 3s1.34 3 3 3zm-8 0c1.66 0 2.99-1.34 2.99-3S9.66 5 8 5C6.34 5 5 6.34 5 8s1.34 3 3 3zm0 2c-2.33 0-7 1.17-7 3.5V19h14v-2.5c0-2.33-4.67-3.5-7-3.5zm10.76 1.31l.71-.71c.18-.18.18-.47 0-.65l-.71-.71c-.18-.18-.47-.18-.65 0l-.71.71c-.19-.12-.4-.21-.62-.28V12h-1v1.17c-.22.07-.43.16-.62.28l-.71-.71c-.18-.18-.47-.18-.65 0l-.71.71c-.18.18-.18.47 0 .65l.71.71c-.12.19-.21.4-.28.62H13v1h1.17c.07.22.16.43.28.62l-.71.71c-.18.18-.18.47 0 .65l.71.71c.18.18.47.18.65 0l.71-.71c.19.12.4.21.62.28V20h1v-1.17c.22-.07.43-.16.62-.28l.71.71c.18.18.47.18.65 0l.71-.71c.18-.18.18-.47 0-.65l-.71-.71c.12-.19.21-.4.28-.62H21v-1h-1.17c-.07-.22-.16-.43-.28-.62zM16 17c-.83 0-1.5-.67-1.5-1.5s.67-1.5 1.5-1.5 1.5.67 1.5 1.5-.67 1.5-1.5 1.5z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-images::before, .fas.fa-images::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M22 16V4c0-1.1-.9-2-2-2H8c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2zm-11-4l2.03 2.71L16 11l4 5H8l3-4zM2 6v14c0 1.1.9 2 2 2h14v-2H4V6H2z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-file-alt::before, .fas.fa-file-alt::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M14 2H6c-1.1 0-1.99.9-1.99 2L4 20c0 1.1.89 2 1.99 2H18c1.1 0 2-.9 2-2V8l-6-6zm2 16H8v-2h8v2zm0-4H8v-2h8v2zm-3-5V3.5L18.5 9H13z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-store::before, .fas.fa-store::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M18.36 9l.6 3H5.04l.6-3h12.72M20 4H4v2h16V4zm0 3H4l-1 5v2h1v6h10v-6h4v6h2v-6h1v-2l-1-5zM6 18v-4h6v4H6z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-sign-out-alt::before, .fas.fa-sign-out-alt::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M17 7l-1.41 1.41L18.17 11H8v2h10.17l-2.58 2.58L17 17l5-5zM4 5h8V3H4c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h8v-2H4V5z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-bars::before, .fas.fa-bars::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M3 18h18v-2H3v2zm0-5h18v-2H3v2zm0-7v2h18V6H3z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-check-circle::before, .fas.fa-check-circle::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 15l-5-5 1.41-1.41L10 14.17l7.59-7.59L19 8l-9 9z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-times-circle::before, .fas.fa-times-circle::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 2C6.47 2 2 6.47 2 12s4.47 10 10 10 10-4.47 10-10S17.53 2 12 2zm5 13.59L15.59 17 12 13.41 8.41 17 7 15.59 10.59 12 7 8.41 8.41 7 12 10.59 15.59 7 17 8.41 13.41 12 17 15.59z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-ban::before, .fas.fa-ban::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zM4 12c0-4.42 3.58-8 8-8 1.85 0 3.55.63 4.9 1.69L5.69 16.9C4.63 15.55 4 13.85 4 12zm8 8c-1.85 0-3.55-.63-4.9-1.69L18.31 7.1C19.37 8.45 20 10.15 20 12c0 4.42-3.58 8-8 8z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-list::before, .fas.fa-list::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M3 13h2v-2H3v2zm0 4h2v-2H3v2zm0-8h2V7H3v2zm4 4h14v-2H7v2zm0 4h14v-2H7v2zM7 7v2h14V7H7z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-refresh::before, .fas.fa-refresh::before, .fa-sync::before, .fas.fa-sync::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 6v3l4-4-4-4v3c-4.42 0-8 3.58-8 8 0 1.57.46 3.03 1.24 4.26L6.7 14.8c-.45-.83-.7-1.79-.7-2.8 0-3.31 2.69-6 6-6zm6.76 1.74L17.3 9.2c.44.84.7 1.79.7 2.8 0 3.31-2.69 6-6 6v-3l-4 4 4 4v-3c4.42 0 8-3.58 8-8 0-1.57-.46-3.03-1.24-4.26z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.fa-bolt::before, .fas.fa-bolt::before, .icon-local.icon-bolt::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ffffff'%3E%3Cpath d='M11 21h-1l1-7H7.5c-.58 0-.57-.32-.38-.66.19-.34.05-.08.07-.12C8.48 10.94 10.42 7.54 13 3h1l-1 7h3.5c.49 0 .56.33.47.51l-.07.15C12.96 17.55 11 21 11 21z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
}

.icon-local.icon-bolt {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.icon-local.icon-bolt::before {
    width: 30px;
    height: 30px;
}

/* 旋转动画 */
@keyframes fa-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 大小变体 */
.fa-xs { font-size: 0.75em; }
.fa-sm { font-size: 0.875em; }
.fa-lg { font-size: 1.33em; }
.fa-2x { font-size: 2em; }
.fa-3x { font-size: 3em; }
.fa-4x { font-size: 4em; }
.fa-5x { font-size: 5em; }

/* 旋转 */
.fa-rotate-90 { transform: rotate(90deg); }
.fa-rotate-180 { transform: rotate(180deg); }
.fa-rotate-270 { transform: rotate(270deg); }

/* 翻转 */
.fa-flip-horizontal { transform: scale(-1, 1); }
.fa-flip-vertical { transform: scale(1, -1); }

/* 动画类 */
.fa-spin {
    animation: fa-spin 2s infinite linear;
}

.fa-pulse {
    animation: fa-pulse 1s infinite steps(8);
}

@keyframes fa-pulse {
    0% { opacity: 1; }
    50% { opacity: 0.4; }
    100% { opacity: 1; }
}

/* 颜色工具类 */
.text-primary { color: #3b82f6; }
.text-secondary { color: #6b7280; }
.text-success { color: #10b981; }
.text-danger { color: #ef4444; }
.text-warning { color: #f59e0b; }
.text-info { color: #06b6d4; }
.text-light { color: #f3f4f6; }
.text-dark { color: #1f2937; }
.text-white { color: #ffffff; }

/* 响应式隐藏/显示 */
@media (max-width: 768px) {
    .fa-hide-mobile { display: none; }
}

@media (min-width: 769px) {
    .fa-hide-desktop { display: none; }
}