.content-area .categories {
    background: white;
    padding: 40px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.content-area .category-grid {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.content-area .resource-category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px 25px;
    border-radius: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 130px;
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    color: #333;
}

.content-area .resource-category-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    background: white;
    border-color: #c0c0c0;
}

.content-area .resource-category-item.active {
    background: #4285f4;
    color: white;
    border-color: #4285f4;
    box-shadow: 0 8px 25px rgba(66, 133, 244, 0.4);
}

.content-area .resource-category-item.active .category-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.content-area .resource-category-item.active .category-icon i {
    color: white;
}

.content-area .category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px 25px;
    border-radius: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 130px;
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    color: #333; /* 设置默认文字颜色 */
}

.content-area .category-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    background: white;
    border-color: #c0c0c0;
}

.content-area .category-item.active {
    background: #4285f4;
    color: white;
    border-color: #4285f4;
    box-shadow: 0 8px 25px rgba(66, 133, 244, 0.4);
}

.content-area .category-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background: rgba(66, 133, 244, 0.1);
    color: #4285f4;
    transition: all 0.3s ease;
}

.content-area .category-item.active .category-icon {
    background: rgba(255, 255, 255, 0.25);
    color: white;
}

.content-area .category-item span {
    font-weight: 600;
    font-size: 15px;
    color: inherit;
}

.resources-section {
    padding: 30px 0;
}

.resources-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.resource-total-count-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 600;
    color: #333;
    padding-left: 0;
}

.resource-total-count-wrapper i {
    font-size: 28px;
    color: #4285f4;
}

.resource-total-count-wrapper span {
    color: #333;
    margin-left: 0;
}

.controls-group {
    display: flex;
    align-items: center;
    gap: 20px;
}

.sort-options {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sort-options label {
    font-size: 15px;
    color: #555;
    font-weight: 500;
}

.sort-options select {
    padding: 10px 15px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 15px;
    color: #333;
    background-color: white;
    cursor: pointer;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 14px auto;
    padding-right: 35px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.sort-options select:hover {
    border-color: #4285f4;
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.2), 0 4px 10px rgba(0, 0, 0, 0.1);
}

.sort-options select:focus {
    border-color: #4285f4;
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.3), 0 4px 10px rgba(0, 0, 0, 0.15);
}

.sort-options select option {
    padding: 10px 15px;
    background-color: white;
    color: #333;
    font-size: 15px;
}

.sort-options select option:hover {
    background-color: #e8f0fe;
    color: #4285f4;
}

.list-view-toggle {
    display: flex;
    gap: 10px;
}

.list-view-toggle button {
    background-color: #f0f2f5;
    border: 1px solid #e0e0e0;
    padding: 8px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    color: #555;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.list-view-toggle button:hover {
    background-color: #e8f0fe;
    border-color: #4285f4;
    color: #4285f4;
}

.list-view-toggle button.active {
    background-color: #4285f4;
    color: white;
    border-color: #4285f4;
    box-shadow: 0 2px 8px rgba(66, 133, 244, 0.3);
}

.list-view-toggle button.active i {
    color: white;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

/* 动画效果 - 完全按照原版1.html */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.7s ease forwards;
}

.resource-card {
    background: white;
    border-radius: 12px;
    overflow: visible;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
    position: relative;
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    border-color: #c0c0c0;
}

.resource-header-compact {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 20px 20px 16px 20px;
    background-color: #fcfcfc;
    border-bottom: 1px solid #f0f0f0;
    flex: 1;
}

.resource-logo-wrapper {
    width: 100px;
    height: 130px;
    flex-shrink: 0;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f0f2f5;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.resource-logo-wrapper:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.resource-logo-compact {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    background-color: #f8f9fa;
    transition: transform 0.3s ease;
}

.resource-logo-wrapper:hover .resource-logo-compact {
    transform: scale(1.1);
}

.resource-left-area {
    flex-shrink: 0;
}

.resource-right-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
    padding-left: 4px;
    position: relative;
}

.resource-title-group {
    flex-grow: 1;
    display: inline-block;
    vertical-align: top;
    position: relative;
    z-index: 100;
}

.resource-title {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    line-height: 1.4;
    word-break: break-word;
    position: relative;
    overflow: visible;
}

/* 对需要截断的标题文本单独应用截断 */
.resource-title > a.resource-title-link,
.resource-title > span.resource-title-link.resource-fault {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}

/* 下拉菜单的触发器不需要截断，但需要保持flex布局以正确对齐图标 */
.resource-title-group .dropdown-toggle {
    display: inline-flex;
    align-items: center;
    overflow: visible;
}

/* .resource-title-group styles merged above */

.resource-meta {
    display: flex;
    align-items: center;
    color: #7f8c8d;
    font-size: 13px;
    gap: 16px;
    margin-bottom: 0;
    flex-wrap: wrap;
}

.resource-meta i {
    margin-right: 2px;
    font-size: 14px;
}

.resource-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background-color: #f0f2f5;
    color: #777;
    padding: 1px 6px;
    border-radius: 8px;
    font-size: 11px;
    font-weight: 500;
    border: 1px solid #e8e8e8;
    white-space: nowrap;
    margin-left: 8px;
}

.resource-tag i {
    font-size: 9px;
    color: #999;
}

/* 收藏按钮样式 - 与封面图底部平行 */
.resource-favorite-corner {
    position: absolute;
    top: 135px;
    right: 8px;
    z-index: 10;
    display: inline-flex;
    align-items: center;
    cursor: pointer;
}

.resource-favorite {
    display: inline-flex;
    align-items: center;
}

.favorite-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s ease;
    padding: 4px;
    border-radius: 50%;
    user-select: none;
    line-height: 1;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.favorite-btn:hover {
    background: rgba(255, 193, 7, 0.15);
    transform: scale(1.08);
    box-shadow: 0 3px 10px rgba(255, 193, 7, 0.3);
}

.favorite-btn:hover .star-icon {
    color: #ffc107;
}

.favorite-btn .star-icon {
    font-size: 20px;
    line-height: 1;
    transition: all 0.3s ease;
    color: #bbb;
    font-weight: normal;
}

.favorite-btn .star-icon.filled {
    color: #ffc107;
    filter: drop-shadow(0 0 1px rgba(255, 193, 7, 0.4));
}

.favorite-btn .favorite-text {
    font-size: 12px;
    white-space: nowrap;
}

.favorite-btn.favorited {
    background: rgba(255, 193, 7, 0.12);
}

.favorite-btn.favorited:hover {
    background: rgba(255, 193, 7, 0.2);
    transform: scale(1.08);
    box-shadow: 0 3px 10px rgba(255, 193, 7, 0.4);
}

.resource-description-area {
    padding: 16px 20px 20px 20px;
    flex-grow: 1;
    border-top: 1px solid #f0f0f0;
    background-color: #fafafa;
}

.resource-description {
    color: #666;
    line-height: 1.6;
    font-size: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 0;
}

.resource-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: auto;
    padding: 15px 20px;
    border-top: 1px solid #f0f0f0;
}

.access-button {
    background: white;
    color: #666;
    border: 1px solid #ccc;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
}

.access-button:hover {
    background: #f8faff;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(66, 133, 244, 0.2);
    border-color: #4285f4;
    color: #4285f4;
}

.resource-grid-layout {
    display: block;
}

.resource-list-layout {
    display: none;
}

.resources-grid.list-view {
    grid-template-columns: 1fr;
    gap: 15px;
}

.resources-grid.list-view .resource-grid-layout {
    display: none;
}

.resources-grid.list-view .resource-list-layout {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
}

.resource-list-image {
    flex-shrink: 0;
}

.resources-grid.list-view .resource-list-image .resource-logo-wrapper {
    width: 100px;
    height: 130px;
}

.resource-list-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.resources-grid.list-view .resource-list-content .resource-title {
    font-size: 18px;
    margin-bottom: 0;
    -webkit-line-clamp: 1;
    line-clamp: 1;
}

.resources-grid.list-view .resource-list-content .resource-meta {
    font-size: 13px;
    gap: 12px;
}

.resource-list-description {
    margin-top: 4px;
}

.resources-grid.list-view .resource-list-description .resource-description {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.5;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    margin-bottom: 0;
}

.resources-grid.list-view .resource-header-compact {
    padding: 0;
    border-bottom: none;
    flex-shrink: 0;
    width: auto;
    flex: 1;
    gap: 16px;
    background: none;
    align-items: center;
}

.resources-grid.list-view .resource-left-area {
    flex-shrink: 0;
}

.resources-grid.list-view .resource-right-area {
    flex: 1;
    gap: 8px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding-left: 0;
}

.resources-grid.list-view .resource-logo-wrapper {
    width: 80px;
    height: 106px;
    margin: 0;
}

.resources-grid.list-view .resource-title-group {
    flex-grow: 1;
    gap: 4px;
}

.resources-grid.list-view .resource-description-area {
    display: none;
}

.resources-grid.list-view .resource-title-group {
    flex-grow: 1;
    gap: 0;
}

.resources-grid.list-view .resource-title {
    font-size: 18px;
    margin-bottom: 4px;
}

.resources-grid.list-view .resource-meta {
    font-size: 13px;
    gap: 12px;
}

.resources-grid.list-view .resource-tag {
    margin-left: 6px;
    padding: 0px 5px;
    font-size: 11px;
}

.resources-grid.list-view .resource-description-area {
    padding: 0;
    flex-grow: 1;
    margin-left: 10px;
}

.resources-grid.list-view .resource-description {
    -webkit-line-clamp: 2;
    font-size: 14px;
}

.resources-grid.list-view .resource-footer {
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    border-top: none;
    padding: 0;
    flex-shrink: 0;
    margin-left: auto;
    width: auto;
}

.resources-grid.list-view .access-button {
    width: auto;
    padding: 12px 20px;
    font-size: 16px;
    gap: 6px;
}

.resources-grid.list-view .access-button:hover {
    transform: none;
    box-shadow: none;
}

.no-resources {
    text-align: center;
    padding: 60px 20px;
    color: #666;
}

.no-resources i {
    font-size: 64px;
    color: #ddd;
    margin-bottom: 20px;
}

.no-resources h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: #333;
}

.no-resources p {
    font-size: 16px;
    color: #666;
}

/* 添加按钮样式 */
.btn {
    display: inline-block;
    padding: 0 6px; /* 添加左右内边距 */
    font-size: 12px;
    line-height: 20px;
    border: none;
    cursor: pointer;
    margin-left: 5px;
    vertical-align: middle;
    /* 移除固定宽度和高度，让内容自适应 */
    min-width: 34px; /* 设置最小宽度 */
    height: 20px;
    border-radius: 4px 0px 4px 0px;
    color: #fff;
    background-color: #0077E1;
    white-space: nowrap; /* 防止文本换行 */
    overflow: hidden; /* 隐藏溢出内容 */
    text-overflow: ellipsis; /* 文本溢出时显示省略号 */
}

.btn-default {
    background-color: #0077E1;
    color: #fff;
}

.btn-red {
    background-color: #FF5E57;
}

.btn-orange {
    background-color: #F3AC3E;
}

.btn-green {
    background-color: #32B16C;
}
@media (max-width: 768px) {
    .btn {
        /* width: 28px; 移除固定宽度 */
        height: 18px;
        font-size: 10px;
        line-height: 18px;
        margin-left: 3px;
        padding: 0 5px; /* 添加左右内边距 */
        min-width: 28px; /* 设置最小宽度 */
    }
    .content-area .categories {
        padding: 30px 0;
    }

    .content-area .category-grid {
        gap: 10px;
        justify-content: space-between;
    }

    .content-area .category-item,
    .content-area .resource-category-item {
        flex: 0 0 calc(33.333% - 7px);
        min-width: unset;
        max-width: calc(33.333% - 7px);
        padding: 15px 8px;
        gap: 6px;
    }

    .content-area .category-icon {
        width: 45px;
        height: 45px;
        font-size: 22px;
    }

    .content-area .category-item span {
        font-size: 14px;
    }

    .resources-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .resource-total-count-wrapper {
        font-size: 20px;
        padding-left: 0;
    }

    .resource-total-count-wrapper i {
        font-size: 24px;
    }

    .controls-group {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        gap: 15px;
    }

    .sort-options {
        width: 100%;
        justify-content: flex-start;
    }

    .sort-options select {
        flex-grow: 1;
    }

    .list-view-toggle {
        justify-content: flex-start;
        width: 100%;
    }

    .resources-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .resources-grid:not(.list-view) .resource-card {
        flex-direction: column;
        align-items: flex-start;
        padding: 15px;
    }

    .resources-grid:not(.list-view) .resource-header-compact {
        flex-direction: row;
        align-items: center;
        gap: 15px;
        padding: 0;
        border-bottom: none;
        margin-bottom: 0;
    }

    .resources-grid:not(.list-view) .resource-logo-wrapper {
        width: 50px;
        height: 50px;
        margin-bottom: 0;
    }

    .resources-grid:not(.list-view) .resource-description-area {
        padding: 20px;
        flex-grow: 1;
        margin-top: 15px;
    }

    .resources-grid:not(.list-view) .resource-title {
        font-size: 18px;
    }

    .resources-grid:not(.list-view) .resource-description {
        -webkit-line-clamp: 4;
    }

    .resources-grid:not(.list-view) .access-button {
        width: 100%;
    }

    .resources-grid.list-view .resource-card {
        flex-direction: row;
        align-items: center;
        padding: 12px 15px;
        gap: 15px;
    }

    .resources-grid.list-view .resource-header-compact {
        flex-direction: row;
        align-items: center;
        gap: 10px;
        padding: 0;
        border-bottom: none;
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .resources-grid.list-view .resource-logo-wrapper {
        width: 45px;
        height: 45px;
        margin-bottom: 0;
    }

    .resources-grid.list-view .resource-title-group {
        flex-grow: 1;
        align-items: flex-start;
    }

    .resources-grid.list-view .resource-title {
        font-size: 16px;
        margin-bottom: 2px;
    }

    .resources-grid.list-view .resource-meta {
        font-size: 11px;
        gap: 4px;
    }

    .resources-grid.list-view .resource-tag {
        margin-left: 0;
        margin-top: 2px;
        font-size: 9px;
        padding: 0px 3px;
    }

    .resources-grid.list-view .resource-description-area {
        display: none;
    }

    .resources-grid.list-view .resource-footer {
        flex-direction: row;
        align-items: center;
        justify-content: flex-end;
        padding: 0;
        border-top: none;
        flex-shrink: 0;
        margin-left: auto;
        width: auto;
    }

    .resources-grid.list-view .access-button {
        width: auto;
        padding: 8px 12px;
        font-size: 13px;
        gap: 5px;
    }
}

@media (max-width: 480px) {
    .btn {
        /* width: 24px; 移除固定宽度 */
        height: 16px;
        font-size: 9px;
        line-height: 16px;
        margin-left: 2px;
        padding: 0 4px; /* 添加左右内边距 */
        min-width: 24px; /* 设置最小宽度 */
    }
    .content-area .categories {
        padding: 30px 0;
    }

    .content-area .category-item {
        min-width: 90px;
        padding: 15px 10px;
    }

    .content-area .category-icon {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

    .resources-grid.list-view .resource-logo-wrapper {
        width: 40px;
        height: 40px;
    }

    .resources-grid.list-view .resource-title {
        font-size: 14px;
    }

    .resources-grid.list-view .access-button {
        padding: 6px 10px;
        font-size: 12px;
    }
}

.resource-title-link {
    color: #374151;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    position: relative;
    vertical-align: middle;
}

.resource-title-link:hover {
    /*color: #1f2937;
    text-decoration: none;*/
    color: #4285f4 !important;
    text-decoration: underline !important;
}

.resource-title-link:visited {
    color: #374151;
}

.resource-title-link:focus {
    outline: none;
}

.resource-title-link::after {
    content: '\f35d';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 11px;
    opacity: 0.4;
    transition: opacity 0.3s ease;
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    line-height: 1;
    margin-left: 6px;
    vertical-align: middle;
}

.resource-title-link:hover::after {
    opacity: 0.7;
}

/* 下拉菜单样式 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    display: none;
    float: left;
    min-width: 160px;
    padding: 5px 0;
    margin: 2px 0 0;
    font-size: 14px;
    text-align: left;
    list-style: none;
    background-color: #ffffff;
    background-clip: padding-box;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 4px;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.175);
}

.dropdown-menu > li > a {
    display: block;
    padding: 3px 20px;
    clear: both;
    font-weight: normal;
    line-height: 1.42857143;
    color: #333333;
    white-space: nowrap;
    text-decoration: none;
}

.dropdown-menu > li > a:hover,
.dropdown-menu > li > a:focus {
    color: #262626;
    text-decoration: none;
    background-color: #f5f5f5;
}

.open > .dropdown-menu {
    display: block;
}

.open > a {
    outline: 0;
}

/* .resource-title-group styles merged above */

.resource-title-group .dropdown-menu {
    min-width: 120px;
    padding: 5px 0;
    margin: 5px 0 0;
    font-size: 14px;
    text-align: left;
    list-style: none;
    background-color: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 4px;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.175);
    background-clip: padding-box;
    display: none;
}

.resource-title-group.open .dropdown-menu {
    display: block !important;
}

.resource-title-group .dropdown-menu > li > a {
    display: block;
    padding: 8px 15px;
    clear: both;
    font-weight: normal;
    line-height: 1.42857143;
    color: #333333;
    white-space: nowrap;
    text-decoration: none;
}

.resource-title-group .dropdown-menu > li > a:hover,
.resource-title-group .dropdown-menu > li > a:focus {
    color: #262626;
    text-decoration: none;
    background-color: #f5f5f5;
}

.resources-grid:not(.list-view) .resource-title-group .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 10000;
    display: none;
}

.resources-grid.list-view .resource-title-group .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 10000;
    display: none;
}