:root {
    /* 亮色主题变量 */
    --bg-color: #f5f5f5;
    --card-bg: #ffffff;
    --text-color: #333333;
    --text-secondary: #666666;
    --border-color: #eeeeee;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --hover-bg: #f5f5f5;
    --tag-bg: #f5f5f5;
    --modal-overlay: rgba(0, 0, 0, 0.5);
    /* 亮色主题变量补充 */
    --link-color: #007BFF;
    --header-bg: #f0f0f0;
    --footer-bg-start: #ffffff;
    --footer-bg-end: #f0f0f0;
    --success-color: #4CAF50;
    --gradient-1: #12c2e9;
    --gradient-2: #c471ed;
    --gradient-3: #f64f59;
    /* 亮色主题补充变量 */
    --focus-shadow: rgba(51, 51, 51, 0.1);
    --modal-close-bg: #f5f5f5;
    --modal-close-border: #ddd;
    --copy-btn-bg: #333;
    --copy-btn-hover: #444;
    --announcement-bg: rgba(244, 67, 54, 0.95);
    --announcement-text: #fff;
    --announcement-shadow: rgba(244, 67, 54, 0.2);
    --link-color-rgb: 0, 123, 255;
    /* 统一圆角样式变量 */
    --border-radius-sm: 4px;    /* 小圆角 */
    --border-radius-md: 6px;    /* 中圆角 */
    --border-radius-lg: 8px;    /* 大圆角 */
    /* 增加高对比度颜色变量 */
    --focus-outline: 3px solid #2196F3;
    --focus-ring-color: rgba(33, 150, 243, 0.4);
    --skip-link-bg: #2196F3;
}

@media (prefers-color-scheme: dark) {
    :root {
        /* 暗色主题变量 */
        --bg-color: #1a1a1a;
        --card-bg: #2d2d2d;
        --text-color: #ffffff;
        --text-secondary: #aaaaaa;
        --border-color: #404040;
        --shadow-color: rgba(0, 0, 0, 0.3);
        --hover-bg: #363636;
        --tag-bg: #363636;
        --modal-overlay: rgba(0, 0, 0, 0.8);
        /* 暗色主题变量补充 */
        --link-color: #5b9eff;
        --header-bg: #252525;
        --footer-bg-start: #252525;
        --footer-bg-end: #1a1a1a;
        --success-color: #45a049;
        --gradient-1: #000428;
        --gradient-2: #004e92;
        --gradient-3: #2c3e50;
        /* 暗色主题补充变量 */
        --focus-shadow: rgba(255, 255, 255, 0.1);
        --modal-close-bg: #363636;
        --modal-close-border: #404040;
        --copy-btn-bg: #666;
        --copy-btn-hover: #777;
        --announcement-bg: rgba(244, 67, 54, 0.85);
        --announcement-text: #fff;
        --announcement-shadow: rgba(244, 67, 54, 0.3);
        --link-color-rgb: 91, 158, 255;
        --focus-outline: 3px solid #64B5F6;
        --focus-ring-color: rgba(100, 181, 246, 0.4);
    }
}

/* 更新现有样式以使用变量 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    box-sizing: border-box;
}

.header,
.announcement {
    width: 100%;
    box-sizing: border-box;
    position: fixed;
    z-index: 999;
}

.header {
    background-color: var(--header-bg);
    color: var(--text-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    top: 3px;
    left: 0;
    opacity: 0;
    transform: translateY(-20px);
    animation: slideFadeIn 0.8s ease forwards;
}

.announcement {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--announcement-bg);
    color: var(--announcement-text);
    padding: 12px 24px;
    top: 53px;
    z-index: 998;
    backdrop-filter: blur(8px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px var(--announcement-shadow);
    transform-origin: top;
}

.announcement p {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
    max-width: 90%;
}

.announcement.hide {
    transform: translateY(-100%) scale(0.95);
    opacity: 0;
}

#close-btn {
    cursor: pointer;
    font-size: 20px;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transition: all 0.2s ease;
    margin-left: 16px;
    flex-shrink: 0;
}

#close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

#close-btn:active {
    transform: scale(0.95);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.search-form {
    display: flex;
    justify-content: space-around;
    flex: 1;
    min-width: 200px;
    max-width: 400px;
    margin: 0 15px;
    margin-bottom: 20px;
    width: 100%;
}

.filter-container {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    box-shadow: 0 2px 8px var(--shadow-color);
    margin-bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.filter-group-left,
.filter-group-right {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-btn {
    background-color: var(--card-bg);
    color: var(--text-color);
    padding: 8px 16px;
    font-size: 14px;
    white-space: nowrap;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    cursor: pointer;
    margin-right: 10px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.filter-btn:hover {
    background-color: var(--hover-bg);
}

.filter-btn.selected {
    background-color: var(--text-color);
    color: var(--card-bg);
}

#download-list {
    padding-top: 20px;
}

.download-item {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-md);
    margin-bottom: 20px;
    padding: 24px;
    box-shadow: 0 2px 8px var(--shadow-color);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.download-item.show {
    opacity: 1;
    transform: translateY(0);
}

.download-item:hover {
    transform: translateY(-10px);
}

.download-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.download-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}

.download-header h3 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--text-color);
    flex: 1;
}

.download-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    padding: 4px 12px;
    border-radius: var(--border-radius-sm);
    font-size: 12px;
    background: var(--tag-bg);
    color: var(--text-secondary);
    white-space: nowrap;
}

.download-description {
    position: relative;
}

.download-description p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    transition: all 0.3s ease;
}

.download-description p.expanded {
    -webkit-line-clamp: unset;
}

.show-more {
    color: var(--link-color);
    font-size: 13px;
    cursor: pointer;
    display: none;
    margin-top: 8px;
}

.button-container {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 20px;
    border-radius: var(--border-radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-color);
}

.btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.btn:hover {
    border-color: var(--link-color);
    color: var(--link-color);
}

.btn:hover svg {
    transform: translateX(2px);
}

.btn:active {
    transform: scale(0.98);
}

.modal {
    z-index: 10000;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -55%) scale(0.95);
    background-color: var(--card-bg);
    border-radius: var(--border-radius-md);
    padding: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: none;
    opacity: 0;
    min-width: 300px;
    max-width: 90%;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.modal.show {
    display: block;
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

#download-url {
    background: var(--hover-bg);
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    word-break: break-all;
    margin: 16px 0;
    user-select: all;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.modal-footer .btn {
    min-width: 80px;
    justify-content: center;
}

.modal-footer .btn.modal-close {
    background-color: var(--modal-close-bg);
    border-color: var(--modal-close-border);
}

.modal-footer .btn#copy-url {
    background-color: var(--copy-btn-bg);
    color: white;
    border-color: var(--copy-btn-bg);
}

.modal-footer .btn#copy-url:hover {
    background-color: var(--copy-btn-hover);
    border-color: var(--copy-btn-hover);
}

/* 添加遮罩层 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--modal-overlay);
    backdrop-filter: blur(2px);
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
    display: none;
}

.modal-overlay.show {
    opacity: 1;
    display: block;
}

.logo {
    font-size: 20px;
    font-weight: bold;
}

.nav a {
    text-decoration: none;
    color: var(--text-color);
    margin-left: 15px;
    font-size: 16px;
}

.nav a:hover {
    text-decoration: underline;
}

.footer {
    background: linear-gradient(to right, var(--footer-bg-start), var(--footer-bg-end), var(--footer-bg-start));
    animation: gradient-marquee 5s infinite linear alternate;
    background-size: 200% 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    position: relative;
    bottom: 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
}

.footer-logo img {
    width: 100px;
    height: auto;
}

.footer-rights {
    color: var(--text-color);
    font-size: 16px;
    text-align: center;
}

.footer-links {
    margin-top: 5px;
}

.footer-links a {
    text-decoration: none;
    color: var(--link-color);
    margin: 0 5px;
}

.footer-links a:hover {
    text-decoration: underline;
}

.show-more {
    color: var(--link-color);
    cursor: pointer;
    display: inline-block;
    margin-top: 10px;
    font-size: 0.9rem;
    text-decoration: underline;
    display: none;
}

/* */
.search-input {
    height: 100%;
    min-height: 36px; /* 降低最小高度 */
    padding: 0 16px;  /* 减小内边距 */
    font-size: 14px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    transition: all 0.2s ease;
    width: 100%;
    background: var(--card-bg);
    color: var(--text-color);
}

.search-input:focus {
    border-color: var(--text-color);
    box-shadow: 0 0 0 3px var(--focus-shadow);
}

.search-button {
    padding: 10px 20px;
    font-size: 16px;
    background-color: var(--copy-btn-bg);
    color: white;
    border: none;
    border-radius: 20px;
    margin-left: 10px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.search-button:hover {
    background-color: var(--copy-btn-hover);
}

/* */

/* 动画 */
@keyframes slideFadeIn {
    0% {
        opacity: 0;
        transform: translateY(-20px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 跑马灯 */
@keyframes gradient-marquee {
    0% {
        background-position: 100% 100%;
    }

    100% {
        background-position: 0% 0%;
    }
}

/* 自适应样式 */
@media (max-width: 768px) {

    .filter-container {
        flex-direction: column;
        align-items: stretch;
        padding: 10px;
    }

    .filter-group-left,
    .filter-group-right {
        justify-content: center;
        gap: 8px;
    }

    .search-form {
        order: -1;
        max-width: 100%;
        margin: 0 0 10px 0;
        width: 100% !important; /* 扩展搜索栏宽度 */
    }

    .filter-btn {
        padding: 6px 12px;
        font-size: 13px;
    }

    .download-item {
        padding: 16px;
        margin: 10px;
    }

    .download-header {
        flex-direction: column;
        gap: 12px;
    }

    .button-container {
        flex-wrap: wrap;
        flex-direction: row;
        justify-content: center;
        gap: 8px;
        margin-top: 15px;
    }

    .btn {
        flex: 1;
        justify-content: center;
        font-size: 0.8rem;
        padding: 8px 15px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-logo {
        margin-bottom: 15px;
    }

    .filter-container {
        display: block;
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .filter-group-left,
    .filter-group-right {
        display: block;
    }

    .filter-group-right {
        padding-top: 10px;
    }

    .filter-btn {
        margin-bottom: 10px;
        padding: 8px 15px;
        flex-grow: 1;
        max-width: 48%;
    }

    .filter-category {
        flex-basis: 100%;
        margin-bottom: 10px;
    }

    .filter-separator {
        display: none;
    }

    .button-container {
        position: static;
        margin-top: 10px;
    }

    .download-item {
        padding: 15px;
    }

    .btn {
        font-size: 0.8rem;
        padding: 8px 15px;
    }

    .back-btn {
        font-size: 0.9rem;
        padding: 8px 15px;
    }

    .announcement {
        padding: 10px 16px;
    }
    
    .announcement p {
        font-size: 13px;
    }

    .details-modal {
        position: fixed;
        width: 100%;
        height: 100%;
        max-width: none;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        margin: 0;
        padding: 0;
        border: none;
        border-radius: 0;
        transform: none !important;
        animation: none;
    }

    .details-modal.show {
        transform: none !important;
    }
}

.filter-container {
    background: var(--card-bg);
    border-radius: var(--border-radius-md);
    padding: 20px;
    box-shadow: 0 2px 8px var(--shadow-color);
    margin-bottom: 30px;
}

.search-area {
    display: flex;
    align-items: stretch;
    gap: 15px;
    width: 100%;
    margin-bottom: 0;  /* 移除底部边距 */
    padding: 15px 0;   /* 上下添加内边距 */
    border-bottom: 1px solid var(--border-color);  /* 添加下边框 */
}

.search-form {
    flex: 1;
    margin: 0;
    width: auto;  /* 改为auto */
    max-width: none;
}

.search-input {
    height: 100%;
    min-height: 36px; /* 降低最小高度 */
    padding: 0 16px;  /* 减小内边距 */
    font-size: 14px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    transition: all 0.2s ease;
    background: var(--card-bg);
    color: var(--text-color);
}

.search-input:focus {
    border-color: #333;
    box-shadow: 0 0 0 3px rgba(51,51,51,0.1);
}

.toggle-filters-btn {
    height: 36px; /* 降低按钮高度 */
    padding: 0 16px; /* 减小内边距 */
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    white-space: nowrap;
    background: var(--card-bg);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
    min-width: 120px;
}

.toggle-filters-btn svg {
    width: 20px;
    height: 20px;
    fill: var(--text-secondary);
    transition: transform 0.3s ease;
}

.toggle-filters-btn:hover {
    color: var(--text-color);
    border-color: var(--text-color);
}

.toggle-filters-btn:hover svg {
    fill: var(--text-color);
}

.filter-groups {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.filter-groups.expanded {
    max-height: 500px;
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    padding-top: 15px;
    margin-top: 15px;
    border-top: 1px solid var(--border-color);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.filter-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-btn {
    padding: 8px 16px;
    font-size: 13px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--card-bg);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-btn:hover {
    background: var(--hover-bg);
}

.filter-btn.selected {
    background: var(--text-color);
    color: var (--card-bg);
    border-color: var(--text-color);
}

.filter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    padding: 4px 0;
}

.toggle-btn {
    background: none;
    border: none;
    padding: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.toggle-btn svg {
    width: 20px;
    height: 20px;
    fill: #666;
}

.filter-group.collapsed .toggle-btn {
    transform: rotate(-90deg);
}

.collapsible {
    max-height: 500px;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.filter-group.collapsed .collapsible {
    max-height: 0;
}

@media (max-width: 768px) {
    .filter-container {
        padding: 15px;
    }

    .search-area {
        flex-direction: column;
        gap: 10px;
        grid-template-columns: 1fr;
    }

    .search-form {
        width: 100%;
    }

    .toggle-filters-btn {
        width: 100%;
    }

    .filter-groups {
        gap: 15px;
    }

    .filter-buttons {
        gap: 6px;
    }

    .filter-btn {
        padding: 6px 12px;
        font-size: 12px;
    }

    .search-input,
    .toggle-filters-btn {
        min-height: 44px; /* 移动端保持较大的点击区域 */
        height: 44px;
    }
}

.filter-toggle {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
}

.toggle-filters-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--card-bg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.toggle-filters-btn svg {
    width: 20px;
    height: 20px;
    fill: var(--text-secondary);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toggle-filters-btn:hover {
    background: var(--hover-bg);
}

.toggle-filters-btn:has(+ .filter-groups.expanded) svg {
    transform: rotate(180deg);
}

.filter-groups {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.filter-groups.expanded {
    max-height: 500px;
}

/* 修改复制按钮成功状态样式 */
.modal-footer .btn#copy-url.success {
    background-color: transparent;
    color: var(--success-color);
    border-color: var(--success-color);
}

.gradient-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    z-index: 1000;
}

.gradient-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        var(--gradient-1),
        var(--gradient-2),
        var(--gradient-3),
        var(--gradient-2),
        var(--gradient-1)
    );
    background-size: 400% 100%;
    opacity: 0.8;
    animation: gradientMove 8s linear infinite;
}

.gradient-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        var(--gradient-1),
        transparent
    );
    background-size: 100% 100%;
    opacity: var(--scroll-progress, 0);
    transition: opacity 0.3s ease;
}

@keyframes gradientMove {
    0% {
        background-position: 0% 50%;
    }
    100% {
        background-position: 400% 50%;
    }
}

#no-more {
    text-align: center;
    color: var(--text-secondary);
    padding: 30px 0;
    font-size: 14px;
    position: relative;
    display: none;
}

#no-more::before,
#no-more::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 50px;
    height: 1px;
    background: var(--border-color);
}

#no-more::before {
    right: calc(50% + 80px);
}

#no-more::after {
    left: calc(50% + 80px);
}

#no-more.show {
    display: block;
    animation: fadeInUp 0.5s ease forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.details-modal {
    max-width: 600px;
    width: 90%;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
}

.details-content {
    color: var(--text-color);
    margin: 20px 0;
    padding: 20px 0;
    overflow-y: auto;
    max-height: calc(80vh - 180px);
}

.details-section {
    margin-bottom: 24px;
    background: var(--hover-bg);
    border-radius: var(--border-radius-md);
    padding: 16px;
    margin-bottom: 16px;
}

.details-section:last-child {
    margin-bottom: 0;
}

.details-section h4 {
    font-size: 16px;
    color: var(--text-color);
    margin: 0 0 12px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.details-section h4::before {
    content: '';
    width: 4px;
    height: 16px;
    background: var(--link-color);
    border-radius: 2px;
}

.details-section p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    font-size: 14px;
}

.details-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.details-actions .btn {
    padding: 10px 20px;
    flex: 1;
    justify-content: center;
    font-weight: 500;
}

.details-actions .btn svg {
    width: 18px;
    height: 18px;
}

.details-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin: 12px 0;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 13px;
    border-radius: var(--border-radius-md);
}

.meta-item svg {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

/* 滚动条样式 */
.details-content::-webkit-scrollbar {
    width: 8px;
}

.details-content::-webkit-scrollbar-track {
    background: var(--card-bg);
}

.details-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.details-content::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.details-modal {
    max-width: 600px;
    width: 90%;
    border: 1px solid var(--border-color);
}

.details-content {
    margin: 0;
    padding: 0;
    overflow-y: auto;
    max-height: calc(85vh - 140px);
}

.details-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 16px;
    background: var(--hover-bg);
    border-radius: var(--border-radius-md);
    margin: 0 24px 20px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    background: var(--card-bg);
    padding: 8px 12px;
    border-radius: var(--border-radius-md);
    box-shadow: 0 2px 4px var(--shadow-color);
}

.meta-item svg {
    width: 16px;
    height: 16px;
    opacity: 0.8;
}

.details-section {
    margin: 0 24px 20px;
    background: var(--card-bg);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
}

.details-section:last-child {
    margin-bottom: 24px;
}

.details-section h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.details-section h4::before {
    content: '';
    width: 3px;
    height: 14px;
    background: var(--link-color);
    border-radius: 3px;
}

.details-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
    padding: 16px 20px;
    font-size: 14px;
}

.details-section ul {
    list-style: none;
    margin: 0;
    padding: 12px 20px;
}

.details-section li {
    color: var(--text-secondary);
    padding: 8px 0;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    line-height: 1.5;
}

.details-section li::before {
    content: '•';
    color: var(--link-color);
    font-weight: bold;
    font-size: 16px;
    margin-top: -2px;
}

.details-section .tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 16px 20px;
}

.details-section .version-tag {
    background: var(--hover-bg);
    color: var(--text-color);
    padding: 6px 12px;
    border-radius: var(--border-radius-md);
    font-size: 13px;
}

/* 滚动条样式优化 */
.details-content::-webkit-scrollbar {
    width: 6px;
}

.details-content::-webkit-scrollbar-track {
    background: transparent;
}

.details-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.details-content::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

@media (max-width: 768px) {
    .details-modal {
        position: fixed;
        width: 100%;
        height: 100%;
        max-width: none;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        transform: none !important;
        border: none;
        border-radius: 0;
    }

    .details-content {
        padding: 0 !important;
        height: calc(100% - 120px); /* 减去header和footer的高度 */
        max-height: none !重要;
    }

    .modal-header {
        padding: 16px 20px;
        margin: 0;
        position: sticky;
        top: 0;
        background: var(--card-bg);
        z-index: 1;
    }

    .modal-footer {
        margin: 0;
        padding: 16px 20px;
        position: sticky;
        bottom: 0;
        background: var(--card-bg);
        border-top: 1px solid var(--border-color);
    }

    .details-meta {
        margin: 16px 16px 20px;
    }

    .details-section {
        margin: 0 16px 16px;
    }

    .modal-footer .btn {
        padding: 12px 20px;
        font-size: 15px;
    }

    /* 改进滚动条在移动端的显示 */
    .details-content::-webkit-scrollbar {
        width: 4px;
    }
}

.feedback-modal {
    max-width: 400px;
    padding: 24px;
}

.feedback-options {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 20px 0;
}

.feedback-btn {
    width: 100%;
    padding: 16px !important;
    justify-content: center;
    font-size: 16px !important;
    gap: 12px !important;
    border-radius: var(--border-radius-md);
    transition: all 0.2s ease;
}

.feedback-btn:hover {
    transform: translateY(-2px);
    background: var(--hover-bg);
}

.feedback-btn svg {
    width: 24px;
    height: 24px;
}

@media (max-width: 768px) {
    .feedback-modal {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
        transform: translateY(100%);
    }

    .feedback-modal.show {
        transform: translateY(0);
    }

    .feedback-btn {
        padding: 20px 16px !important;
    }
}

.feedback-note {
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
    margin-top: 16px;
    font-style: italic;
}

/* 广告项样式 */
.ad-item {
    border: 2px dashed var(--border-color);
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--hover-bg) 100%);
    position: relative;
    overflow: visible !important;
    border-radius: var(--border-radius-md);
}

.ad-badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--link-color);
    color: white;
    padding: 2px 8px;
    border-radius: var(--border-radius-sm);
    font-size: 12px;
    font-weight: bold;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.ad-item .download-content {
    opacity: 0.9;
}

.ad-item:hover {
    border-color: var(--link-color);
    transform: translateY(-5px);
}

.ad-item .btn {
    background: var(--link-color);
    color: white;
    border: none;
}

.ad-item .btn:hover {
    opacity: 0.9;
    background: var(--link-color);
}

/* 适配移动端 */
@media (max-width: 768px) {
    .ad-item {
        margin: 20px 10px;
    }
    
    .ad-badge {
        top: -8px;
        right: -8px;
        font-size: 10px;
    }
}

/* 广告项样式优化 */
.ad-item {
    border: 2px dashed var(--border-color);
    background: linear-gradient(135deg, 
        var(--card-bg) 0%, 
        rgba(var(--link-color-rgb), 0.02) 100%
    );
    position: relative;
    overflow: visible !重要;
    border-radius: var(--border-radius-md);
    transition: all 0.3s ease;
}

.ad-item::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(45deg, 
        var(--gradient-1), 
        var(--gradient-2), 
        var(--gradient-3)
    );
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.ad-item:hover::before {
    opacity: 0.3;
}

.ad-badge {
    position: absolute;
    top: -12px;
    right: -12px;
    background: var (--link-color);
    color: white;
    padding: 4px 12px;
    border-radius: var(--border-radius-sm);
    font-size: 12px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(var(--link-color-rgb), 0.2);
    transform: scale(0.95);
    transition: all 0.3s ease;
}

.ad-item:hover {
    border-color: var(--link-color);
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(var(--link-color-rgb), 0.1);
}

.ad-item .btn {
    background: var(--link-color);
    color: white;
    border: none;
    padding: 10px 24px;
}

.ad-item .btn:hover {
    background: var(--link-color);
    opacity: 0.9;
    color: white;
    transform: translateY(-2px);
}

.ad-item:hover .ad-badge {
    transform: scale(1.05) translateY(-2px);
    box-shadow: 0 6px 16px rgba(var(--link-color-rgb), 0.4);
}

.ad-item .download-content {
    opacity: 0.95;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.ad-item:hover .download-content {
    opacity: 1;
    transform: translateY(-2px);
}

.ad-item .download-header h3 {
    background: linear-gradient(90deg, 
        var(--text-color), 
        var(--link-color)
    );
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.ad-item .download-description p {
    line-height: 1.8;
    font-size: 14px;
}

.ad-item .button-container {
    margin-top: 16px;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.ad-item:hover .button-container {
    opacity: 1;
}

.ad-item .btn {
    background: var(--link-color);
    color: white;
    border: none;
    padding: 10px 24px;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.ad-item .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.ad-item .btn:hover::before {
    transform: translateX(100%);
}

.ad-item .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--link-color-rgb), 0.3);
    background: var(--link-color);
}

.ad-item .btn:active {
    transform: translateY(0);
}

.ad-item .btn svg {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    transition: transform 0.3s ease;
}

.ad-item .btn:hover svg {
    transform: translateX(2px);
}

/* 广告项动画效果 */
.ad-item {
    animation: adAppear 0.5s ease forwards;
}

@keyframes adAppear {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 适配移动端 */
@media (max-width: 768px) {
    .ad-item {
        margin: 24px 10px;
    }
    
    .ad-badge {
        top: -8px;
        right: -8px;
        font-size: 10px;
        padding: 3px 10px;
    }
    
    .ad-item .download-header h3 {
        font-size: 1.1rem;
    }
    
    .ad-item .download-description p {
        font-size: 13px;
    }
    
    .ad-item .btn {
        padding: 8px 16px;
        font-size: 13px;
    }
}

/* 按钮基础样式优化 */
.download-item .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 20px;
    border-radius: var(--border-radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-color);
}

.download-item .btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.download-item .btn svg path {
    fill: currentColor;
}

.download-item .btn:hover {
    border-color: var(--link-color);
    color: var(--link-color);
    background: var(--card-bg);
}

.download-item .btn:hover svg {
    transform: translateX(2px);
}

.download-item .btn:active {
    transform: scale(0.98);
}

/* 广告项按钮样式 - 保持原有的白色按钮样式 */
.ad-item .btn {
    background: var(--link-color);
    color: white;
    border: none;
}

.ad-item .btn:hover {
    background: var(--link-color);
    opacity: 0.9;
    color: white;
}

/* 暗色模式下的按钮样式调整 */
@media (prefers-color-scheme: dark) {
    .download-item .btn {
        background: var(--card-bg);
        color: var (--text-color);
        border-color: var(--border-color);
    }

    .download-item .btn:hover {
        border-color: var(--link-color);
        color: var(--link-color);
        background: var(--card-bg);
    }
}

/* 无障碍样式补充 */
/* 焦点状态增强 */
:focus {
    outline: var(--focus-outline);
    outline-offset: 2px;
}

/* 键盘焦点样式 */
:focus-visible {
    outline: var(--focus-outline);
    box-shadow: 0 0 0 4px var(--focus-ring-color);
}

/* 跳转到主要内容链接 */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--skip-link-bg);
    color: white;
    padding: 8px;
    z-index: 100;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* 确保按钮和输入框有足够的点击区域 */
button,
input,
.btn {
    min-height: 44px;
    min-width: 44px;
}

/* 增加文本和背景的对比度 */
.download-description p {
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.6;
}

/* 隐藏装饰性元素对屏幕阅读器 */
[aria-hidden="true"] {
    display: none !important;
}

/* 响应式布局中保持足够的触摸目标大小 */
@media (max-width: 768px) {
    .filter-btn,
    .btn {
        padding: 12px 20px;
        margin: 4px;
    }
    
    /* 增加列表项间距 */
    .download-item {
        margin-bottom: 24px;
    }
}

/* 修改按钮焦点样式 */
button:focus {
    outline: none;
}

/* 仅在使用键盘导航时显示焦点轮廓 */
button:focus-visible {
    outline: var(--focus-outline);
    box-shadow: none;
}

/* 特别处理搜索输入框的焦点样式 */
.search-input:focus {
    border-color: var(--border-color);
    box-shadow: none;
    outline: none;
}

/* 修改筛选按钮的焦点样式 */
.filter-btn:focus {
    outline: none;
    box-shadow: none;
}

/* 修改其他按钮的焦点样式 */
.btn:focus {
    outline: none;
    box-shadow: none;
}

/* 重置筛选器容器样式 */
.filter-container {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    box-shadow: 0 2px 8px var(--shadow-color);
    margin-bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 搜索模块样式 */
.filter-search {
    width: 100%;
}

.search-form {
    width: 100%;
    max-width: none;
    margin: 0;
}

.search-input {
    width: 100%;
    min-height: 42px; /* 修改为更合适的高度 */
    padding: 8px 16px; /* 调整内边距 */
    font-size: 14px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--card-bg);
    color: var(--text-color);
    transition: all 0.2s ease;
    line-height: 1.5; /* 添加行高 */
}

.search-area {
    display: flex;
    align-items: center; /* 调整为center */
    gap: 15px;
    width: 100%;
    margin-bottom: 0;
    padding: 12px 0; /* 减小上下内边距 */
    border-bottom: 1px solid var(--border-color);
}

.toggle-filters-btn {
    min-height: 42px; /* 与搜索框保持一致 */
    padding: 0 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    white-space: nowrap;
    background: var(--card-bg);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
    min-width: 120px;
    font-size: 14px; /* 添加字体大小 */
}

/* 移动端适配 */
@media (max-width: 768px) {
    .search-input,
    .toggle-filters-btn {
        min-height: 38px; /* 移动端稍微降低高度 */
    }
    
    .search-area {
        padding: 10px 0; /* 移动端减小内边距 */
    }
}

/* 搜索模块样式 */
.filter-search {
    width: 100%;
}

.search-form {
    width: 100%;
    max-width: none;
    margin: 0;
}

.search-input {
    width: 100%;
    padding: 12px 20px;
    font-size: 14px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--card-bg);
    color: var(--text-color);
    transition: all 0.2s ease;
}

.search-input:focus {
    border-color: var(--link-color);
    box-shadow: 0 0 0 3px rgba(var(--link-color-rgb), 0.1);
}

/* 筛选选项样式 */
.filter-options {
    display: none;
}

.filter-group {
    flex: 1;
    min-width: 250px;
}

.filter-group-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 12px;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-btn {
    padding: 8px 16px;
    font-size: 13px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--card-bg);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-btn:hover {
    background: var(--hover-bg);
    border-color: var(--text-color);
}

.filter-btn.selected {
    background: var(--text-color);
    color: var(--card-bg);
    border-color: var(--text-color);
}

/* 响应式布局 */
@media (max-width: 768px) {
    .filter-container {
        padding: 15px;
        gap: 15px;
    }

    .filter-group {
        min-width: 100%;
    }

    .filter-buttons {
        gap: 6px;
    }

    .filter-btn {
        font-size: 12px;
        padding: 6px 12px;
        flex-grow: 1;
    }
}

/* 搜索模块样式统一高度 */
.search-area {
    display: flex;
    align-items: center;
    gap: 15px;
    width: 100%;
    margin-bottom: 0;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.search-form {
    flex: 1;
    margin: 0;
    width: auto;
    max-width: none;
}

.search-input {
    width: 100%;
    height: 42px; /* 固定高度 */
    padding: 0 16px;
    font-size: 14px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--card-bg);
    color: var(--text-color);
    transition: all 0.2s ease;
    line-height: 42px; /* 与高度保持一致 */
}

.toggle-filters-btn {
    height: 42px; /* 与搜索框保持相同高度 */
    padding: 0 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    white-space: nowrap;
    background: var(--card-bg);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
    min-width: 120px;
    font-size: 14px;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .search-input,
    .toggle-filters-btn {
        height: 38px; /* 移动端统一降低高度 */
        line-height: 38px;
    }
    
    .search-area {
        padding: 10px 0;
    }
}

/* 重要提示样式 */
.important-tip {
    background: rgba(255, 59, 48, 0.1) !important;
    border: 1px solid rgba(255, 59, 48, 0.2) !important;
}

.important-tip h4 {
    color: #ff3b30 !important;
}

.important-tip h4::before {
    background: #ff3b30 !important;
}

.important-tip p {
    color: var(--text-color) !important;
    font-weight: 500;
}