:root {
    --transition-duration: 0.3s;
    --show-more-btn-background: #000409;
    --show-more-btn-text-color: #ffffff;
    --show-more-btn-hover-background: #5a5b5d;
    --show-more-btn-active-background: #000409;
}

:root[data-theme="dark"] {
    --show-more-btn-background: #f9f9fa;
    --show-more-btn-text-color: #040404;
    --show-more-btn-hover-background: #656566;
    --show-more-btn-active-background: #f9f9fa;
}

/* 深色主题下的标签样式优化 */
@media (min-width: 769px) {
    :root[data-theme="dark"] .taggroup {
        /* background: rgba(255, 255, 255, 0.03);
        border-color: rgba(255, 255, 255, 0.08); */
    }

    :root[data-theme="dark"] .taggroup button {
        background: rgba(255, 255, 255, 0.06);
        border-color: rgba(255, 255, 255, 0.12);
    }

    :root[data-theme="dark"] .taggroup button:hover {
        background: rgba(255, 255, 255, 0.12);
        border-color: rgba(255, 255, 255, 0.2);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    }

    :root[data-theme="dark"] .taggroup button.active {
        background: linear-gradient(135deg, #ffffff, #e5e7eb);
        color: #1f2937;
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    }

    /* 深色主题下的功能标签样式 */
    :root[data-theme="dark"] .taggroup button[data-tag="latest"],
    :root[data-theme="dark"] .taggroup button[data-tag="audit"],
    :root[data-theme="dark"] .taggroup button[data-tag="history"],
    :root[data-theme="dark"] .taggroup button[data-tag="favorite"] {
        background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(59, 130, 246, 0.06));
        border-color: rgba(59, 130, 246, 0.25);
    }

    :root[data-theme="dark"] .taggroup button[data-tag="latest"]:hover,
    :root[data-theme="dark"] .taggroup button[data-tag="audit"]:hover,
    :root[data-theme="dark"] .taggroup button[data-tag="history"]:hover,
    :root[data-theme="dark"] .taggroup button[data-tag="favorite"]:hover {
        background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(59, 130, 246, 0.12));
        border-color: rgba(59, 130, 246, 0.4);
    }

    :root[data-theme="dark"] .taggroup button[data-tag="latest"].active,
    :root[data-theme="dark"] .taggroup button[data-tag="audit"].active,
    :root[data-theme="dark"] .taggroup button[data-tag="history"].active,
    :root[data-theme="dark"] .taggroup button[data-tag="favorite"].active {
        background: linear-gradient(135deg, #3b82f6, #60a5fa);
        color: white;
    }

    /* 深色主题下的分类标签样式 */
    :root[data-theme="dark"] .taggroup button[data-tag="news"],
    :root[data-theme="dark"] .taggroup button[data-tag="stories"],
    :root[data-theme="dark"] .taggroup button[data-tag="fun"],
    :root[data-theme="dark"] .taggroup button[data-tag="knowledge"],
    :root[data-theme="dark"] .taggroup button[data-tag="life"] {
        background: linear-gradient(135deg, rgba(34, 197, 94, 0.08), rgba(34, 197, 94, 0.04));
        border-color: rgba(34, 197, 94, 0.15);
    }

    :root[data-theme="dark"] .taggroup button[data-tag="news"]:hover,
    :root[data-theme="dark"] .taggroup button[data-tag="stories"]:hover,
    :root[data-theme="dark"] .taggroup button[data-tag="fun"]:hover,
    :root[data-theme="dark"] .taggroup button[data-tag="knowledge"]:hover,
    :root[data-theme="dark"] .taggroup button[data-tag="life"]:hover {
        background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(34, 197, 94, 0.08));
        border-color: rgba(34, 197, 94, 0.3);
    }

    :root[data-theme="dark"] .taggroup button[data-tag="news"].active,
    :root[data-theme="dark"] .taggroup button[data-tag="stories"].active,
    :root[data-theme="dark"] .taggroup button[data-tag="fun"].active,
    :root[data-theme="dark"] .taggroup button[data-tag="knowledge"].active,
    :root[data-theme="dark"] .taggroup button[data-tag="life"].active {
        background: linear-gradient(135deg, #22c55e, #4ade80);
        color: white;
    }
}

body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    touch-action: pan-y;
    -webkit-overflow-scrolling: touch;
    /* 使用系统字体作为降级方案，Google字体延迟加载 */
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-weight: 500;
    font-style: normal;
    transition: font-family 0.3s ease;
}

/* Google字体加载完成后应用 */
body.fonts-loaded {
    font-family: "Zen Kaku Gothic New", -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif !important;
}

/* 如果GSAP加载失败，可以使用CSS动画作为降级方案 */
body.no-gsap .spin-btn:hover {
    transform: scale(1.05) rotate(4deg);
    transition: transform 0.2s ease;
}

/* 响应式图片容器 */
picture {
    display: inline-block;
}

picture img {
    max-width: 100%;
    height: auto;
}

/* 为懒加载图片添加淡入效果 */
img[loading="lazy"] {
    opacity: 1;
    transition: opacity 0.3s ease;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

.background-auto {
    background-color: var(--color-bg);
    color: var(--color-text);
}

/* 
.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--secondary-color);
    font-weight: 500;
    transition: color var(--transition-duration);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
} */

/* 主要内容区域 */
.main-content {
    padding: 2rem 0;

}

#showMoreBtn {
    margin-top: 2rem;
    padding: 1rem;
    font-size: 17px;
    box-shadow: 0 4px 19px var(--color-shadow);
    background-color: var(--show-more-btn-background);
    color: var(--show-more-btn-text-color);
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-duration);
    max-width: 350px;
    margin: 0 auto;
    align-self: center;
    justify-self: center;
}

#showMoreBtn:hover {
    background-color: var(--show-more-btn-hover-background);
}

#showMoreBtn:active {
    background-color: var(--show-more-btn-active-background);
}

#bgWave {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* .section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
} */

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(390px, 1fr));
    gap: 2rem;
    padding: 1rem;
}

/* 骨架屏样式 */
.skeleton-card {
    background: var(--color-card-bg, #ffffff);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--color-border, #e1e5e9);
    box-shadow: 0 2px 8px var(--color-shadow, rgba(0, 0, 0, 0.05));
    animation: skeleton-pulse 1.5s ease-in-out infinite alternate;
}

.skeleton-content {
    margin-bottom: 1rem;
}

.skeleton-line {
    height: 1rem;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--color-skeleton-bg, #f0f0f0) 25%, var(--color-skeleton-highlight, #e0e0e0) 50%, var(--color-skeleton-bg, #f0f0f0) 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.2s ease-in-out infinite;
    margin-bottom: 0.8rem;
}

.skeleton-title {
    height: 1.4rem;
    width: 85%;
}

.skeleton-text {
    width: 100%;
}

.skeleton-text.short {
    width: 60%;
}

.skeleton-footer {
    display: flex;
    gap: 0.8rem;
    margin-top: 1rem;
}

.skeleton-badge {
    height: 1.2rem;
    width: 4rem;
    border-radius: 6px;
    background: linear-gradient(90deg, var(--color-skeleton-bg, #f0f0f0) 25%, var(--color-skeleton-highlight, #e0e0e0) 50%, var(--color-skeleton-bg, #f0f0f0) 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.2s ease-in-out infinite;
}

@keyframes skeleton-shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

@keyframes skeleton-pulse {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0.7;
    }
}

/* 暗色主题下的骨架屏 */
:root[data-theme="dark"] .skeleton-card {
    --color-skeleton-bg: #2a2a2a;
    --color-skeleton-highlight: #3a3a3a;
}

/* 深色主题下的小说图标样式 */
:root[data-theme="dark"] .novel-icon {
    background: rgba(30, 41, 59, 0.9);
    border: 1px solid rgba(71, 85, 105, 0.3);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

:root[data-theme="dark"] .drama-icon {
    background: rgba(30, 41, 59, 0.9);
    border: 1px solid rgba(71, 85, 105, 0.3);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}


/* 文章卡片样式 */
.article-card {
    background: var(--color-surface);
    height: 440px;
    display: flex;
    flex-direction: column;
    justify-content: left;
    align-items: center;
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
    /* 默认浅色渐变，但更柔和 */
    background: linear-gradient(135deg, #eff6ff 0%, #e0f2fe 100%);
}

:root[data-theme="dark"] .article-card {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.15);
    z-index: 10;
}

:root[data-theme="dark"] .article-card:hover {
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
}

/* 小说图标样式 */
.novel-icon {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 10;
    /* background: rgba(255, 255, 255, 0.9); */
    border-radius: 50%;
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* 剧本图标样式 */
.drama-icon {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 10;
    border-radius: 50%;
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* 当同时存在小说和剧本图标时的布局调整 */
.article-card:has(.novel-icon) .drama-icon {
    left: auto;
    right: 12px;
}

.article-card:has(.drama-icon) .novel-icon {
    left: 12px;
}

.novel-icon img {
    /*旋转 */
    transform: rotate(-10deg);
    width: 80px;
    height: 80px;
    object-fit: contain;
}

.drama-icon img {
    /* 轻微旋转，与小说图标不同方向 */
    transform: rotate(10deg);
    width: 80px;
    height: 80px;
    object-fit: contain;
}

/* 响应式设计 - 移动端小说和剧本图标 */
@media (max-width: 768px) {
    .novel-icon {
        width: 100px;
        height: 100px;
        top: 8px;
        left: 8px;
    }

    .novel-icon img {
        width: 80px;
        height: 80px;
    }

    .drama-icon {
        width: 100px;
        height: 100px;
        top: 8px;
        left: 8px;
    }

    .drama-icon img {
        width: 80px;
        height: 80px;
    }
}

@media (max-width: 480px) {
    .novel-icon {
        width: 100px;
        height: 100px;
        top: 6px;
        left: 6px;
    }

    .novel-icon img {
        width: 80px;
        height: 80px;
    }

    .drama-icon {
        width: 100px;
        height: 100px;
        top: 6px;
        left: 6px;
    }

    .drama-icon img {
        width: 80px;
        height: 80px;
    }
}

/* .article-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* 使用 SVG data URI 作为背景 
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='10' viewBox='0 0 10 10' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'%3E%3Ccircle cx='5' cy='5' r='1'/%3E%3C/g%3E%3C/svg%3E");
    background-size: 10px 10px; /* 调整 SVG 纹理的大小 
    opacity: 0.8; /* 调整纹理的透明度，使其若隐若现 
  } */

/* .header {
    background-color: white;
} */




.article-content {
    /* height: 350px; */
    width: 80%;
    display: flex;
    flex-direction: column;
    justify-content: left;
    align-items: center;
    margin: 50px 0px 2px 0px;
    overflow-y: auto;
    /* 当内容超出时，垂直方向显示滚动条 */
    overflow-x: hidden;
    touch-action: pan-y;
    -webkit-overflow-scrolling: touch;
    /* 水平方向隐藏滚动条，避免横向滚动 */
    /* padding: 10px; */
    /* 可选，内边距让内容不贴边 */
    -ms-overflow-style: none;
    /* IE/Edge 隐藏滚动条 */
    scrollbar-width: none;
    /* Firefox 隐藏滚动条 */
    /* background-color: #a0aec0; */
    /* transition: transform 0.3s ease 0.2s, font-size 0.3s ease 0.2s, border-color 0.3s ease 0.2; */
    box-shadow: 0 10px 30px var(--color-shadow);
    /* 细腻的阴影 */
    transform-origin: center bottom;
    /* 从上边中心开始放大 */
    transition: transform 0.3s ease;
    border-radius: 16px 16px 0px 0px;
    background-clip: padding-box;
    cursor: pointer;
}



.article-content:hover {
    transform: scale(1.05);
    border-color: black !important;
}

.article-content> :first-child {
    padding: 10px !important;
    /* 设置父元素第一个子元素的内边距 */
}

.article-description {
    width: 100%;
    /* height: 50px; */
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    background-color: var(--color-bg);
}

.article-description h3 {
    /* flex-grow: 1; */
    /* flex-shrink: 1; */
    flex-basis: 100%;
}

/* .footer {
    background-color: var(--color-bg);
    padding: 2rem 0;
    text-align: center;
    color: var(--color-text);
} */

/* Simple tag buttons */
.taggroup {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    justify-content: center;
    padding: 0.5rem 0;
    flex-wrap: wrap;
}

.tag-column {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
}

.taggroup button {
    background: transparent;
    border: 1px solid var(--color-text);
    color: var(--color-text);
    padding: 0.4rem 1.2rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    min-width: 70px;
    white-space: nowrap;
    flex-shrink: 0;
    text-align: center;
    line-height: 1.2;
}

.taggroup button:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.taggroup button.active {
    background: var(--color-text);
    color: var(--color-bg);
    font-weight: 600;
}

#nav2.fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
}

#nav2-placeholder {
    background: transparent;
}

/*nav1为flex布局*/
#nav1 {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    padding: 30px 0;
    margin: 0 auto;
    max-height: 350px;
    max-width: 1280px;
    z-index: 1000;

}

.logo {
    width: 250px;
    display: flex;
    justify-content: left;
    transform: rotate(-4deg);
    perspective: 800px;
    /* 透视，让3D旋转有深度感 */
}

.logo img {
    width: 100%;
    height: auto;
    display: block;
    filter: drop-shadow(2px 2px 1px rgba(0, 0, 0, 0.2));
    backface-visibility: visible;
    /* 旋转时背面可见 */
    transform-style: preserve-3d;
    /* 保持3D效果 */
}

#nav1 .slogan {
    /* width: 50%; */
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 10px;
    white-space: nowrap;
    font-size: clamp(18px, 6vw, 26px);
    max-width: 100%;
}

#nav1-extend {
    display: none;
}

#nav1-extend .slogan {
    display: flex;
    justify-content: center;
    align-items: center;
}

#nav1-extend .slogan {
    padding: 0% 10px;
}





.menu {
    width: 100%;
    max-width: 600px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    filter: drop-shadow(2px 2px 1px rgba(0, 0, 0, 0.2));
    position: relative;
    /* padding: 15px 0; */
}


.menu a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.menu a img {
    display: block;
}

#login {
    height: 80px;
    object-fit: contain;
    filter: drop-shadow(2px 2px 1px rgba(0, 0, 0, 0.2));
    transform: rotate(-2deg);
}

#nav2 {
    display: flex;
    justify-content: left;
    gap: 10px;
    align-items: center;
    padding: 20px 16px;
    margin: 0 auto;
    max-width: 1280px;
    max-height: 80px;
    z-index: 1000;
    background-color: var(--color-bg);
    font-size: 16px;
}

.taggroup {
    position: relative;
    display: flex;
    gap: 10px;
    /* border-bottom: 1px solid var(--color-border); */
    /* padding-bottom: 8px; */
    width: fit-content;
    justify-content: left;
    align-items: center;
}

/* 确保桌面端taggroup显示 */
@media (min-width: 769px) {
    .taggroup {
        display: none !important;
    }
}

.taggroup button {
    background: none;
    border: none;
    padding: 2px 5px;
    cursor: pointer;
    font-size: 18px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    /* font-weight: 500; */
    transition: background-color var(--transition-duration);
    color: var(--color-text);
    font-family: inherit;
    /* font-weight: 700; */
}

.taggroup button:hover {
    /* color: var(--color-primary); */
    text-decoration: underline;
    text-decoration-thickness: 3px;
    text-underline-offset: 4px;
}

.taggroup button.active {
    /* color: var(--color-primary); */
    text-decoration: underline;
    text-decoration-thickness: 3px;
    text-underline-offset: 4px;
}

.taggroup .tag-divider {
    color: var(--color-text);
    opacity: 0.4;
    font-size: 20px;
    line-height: 1;
    margin: 0 8px;
    user-select: none;
    display: flex;
    align-items: center;
    align-self: center;
}



.indicator {
    position: absolute;
    bottom: 0;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform 0.3s ease, width 0.3s ease;
}

.taggroup button img {
    height: 40px;
    display: block;
    filter: drop-shadow(2px 2px 2px var(--color-shadow-hard));
}

.tagselect {
    display: none;
}

.level {
    display: flex;
    justify-content: right;
    align-items: center;
    gap: 20px;
    width: 100px;
    max-width: none;
}

.level button img {
    max-width: 80px;
    height: auto;
    width: 100%;
    display: block;
}

.dropdown {
    /* position: relative;
    user-select: none;
    margin: 20px;
    color: #3e3a32; */
}

.dropdown-toggle {
    /* width: 140px; */
    padding: 4px 10px;
    /* background-color: var(--select-bg-color); */
    border: 1px solid var(--color-text);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    /* box-shadow: 2px 2px 10px var(--color-shadow); */
    transition: all 0.3s ease;
}

.dropdown-toggle:hover {
    text-decoration: underline;
    text-decoration-thickness: 3px;
    text-underline-offset: 4px;
}

.dropdown-options {
    min-width: 280px;
    position: absolute;
    /* top: 110%;
    left: 0;*/
    /* right: 0;   */
    background-color: var(--color-bg);
    border: 1px solid var(--color-text);
    border-radius: 6px;
    margin-top: 8px;
    box-shadow: 2px 2px 10px var(--color-shadow);
    display: none;
    flex-direction: row;
    z-index: 1000;
    overflow: hidden;
    padding: 8px;
}

.dropdown-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.dropdown-group:first-child {
    border-right: 1px solid rgba(128, 128, 128, 0.2);
    padding-right: 8px;
    margin-right: 8px;
}

.dropdown-group-title {
    padding: 4px 12px 8px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    color: rgba(128, 128, 128, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    pointer-events: none;
    border-bottom: 1px solid rgba(128, 128, 128, 0.15);
    margin-bottom: 4px;
}

.dropdown-option {
    padding: 6px 12px;
    cursor: pointer;
    transition: background 0.2s;
    border-radius: 4px;
    margin: 0 4px;
}

.dropdown-option:hover {
    background: rgba(128, 128, 128, 0.1);
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

.dropdown-divider {
    height: 1px;
    background-color: var(--color-text);
    opacity: 0.2;
    margin: 8px 20px;
    width: 30%;
}

.option-selected {
    text-decoration: underline;
    text-decoration-thickness: 3px;
    text-underline-offset: 4px;
}

.dropdown.open .dropdown-options {
    display: flex;
    flex-direction: column;
    animation: fadeIn 0.3s ease;
}

.arrow {
    display: inline-block;
    /* width: 10px;
    height: 10px; */
    border: solid var(--select-border-color);
    border-width: 0 2px 2px 0;
    padding: 4px;
    transform: rotate(45deg);
    transition: transform 0.3s ease;
    margin-left: 12px;
}

.dropdown.open .arrow {
    transform: rotate(-135deg);
}

.timeline-container {
    width: 100%;
    overflow-x: hidden;
    padding: 20px 0;
    touch-action: pan-y;
    -webkit-overflow-scrolling: touch;
}

.timeline {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    height: 48px;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 5%;
    right: 5%;
    height: 1px;
    background: linear-gradient(90deg,
            transparent 0%,
            rgba(148, 163, 184, 0.4) 12%,
            rgba(148, 163, 184, 0.55) 50%,
            rgba(148, 163, 184, 0.4) 88%,
            transparent 100%);
    transform: translateY(-50%);
}

.time-point {
    position: relative;
    z-index: 1;
    padding: 4px 28px;
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-muted);
    white-space: nowrap;
    margin: 0 auto;
    letter-spacing: 0.4px;
    background: var(--color-bg);
    border-radius: 999px;
    /* box-shadow: 0 6px 18px rgba(15, 23, 42, 0.08); */
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}



#flashcard {
    height: 70px;
    object-fit: contain;
    filter: drop-shadow(2px 2px 1px var(--color-shadow));
    transform: rotate(-3deg);
}

.titleButton {
    z-index: 1002;
    transform: rotate(-2deg);
}

.aboutButton {
    z-index: 1002;
    transform: rotate(-2deg);
}

.aboutButton img {
    width: 130px !important;
    /* height: 70px !important; */
    object-fit: contain;
    filter: drop-shadow(2px 2px 1px var(--color-shadow));
}






/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/*呼吸标语*/
.breathing-banner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    max-height: 150px;
    height: 150px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    box-shadow: 0 2px 8px var(--color-shadow);
    z-index: 1000;
}

/* 背景底层 */
.bg-gradient {
    /* position: absolute; */
    width: 100%;
    height: 100%;
    background-size: 400% 400%;
    background-position: 50% 50%;
    filter: brightness(1);
    z-index: 0;
}

/* 背景水波光流层 */
.bg-wave {
    max-height: 300px;
    height: 300px;
    position: absolute;
    width: 200%;
    /* height: 200%; */
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.2) 0%, transparent 60%);
    mix-blend-mode: overlay;
    /* 让光叠加到渐变上 */
    z-index: 1;
    pointer-events: none;
}

/* slogan 文字 */
.breathing-text {
    position: relative;
    font-size: 1.2rem;
    font-weight: 500;
    color: white;
    letter-spacing: 1px;
    z-index: 2;
    opacity: 1;
    transform: scale(1);
}

.badge {
    /* background-color: #6e6e6e; */
    /* color: rgb(36, 36, 36); */
    color: var(--color-text-muted);
    /* border: 1px solid rgb(36, 36, 36); */
    padding: 4px 8px;
    border-radius: 3px;
    font-size: 16px;
    width: fit-content;
    margin: 15px 0px;
}

.read-more {
    cursor: pointer;
    flex-grow: 1;
    color: var(--color-text-muted);
    font-weight: 500;
    text-align: right;
}

.audit {
    cursor: pointer;
    color: var(--color-primary);
}

/* .article-summary {
    background-color: #f9f9f9;
    border-left: 4px solid #4A90E2;
    padding: 12px 16px;
    margin: 16px 0;
    font-size: 0.95rem;
    color: #333;
    line-height: 1.5;
    border-radius: 6px;
} */

/* .article-summary p {
    margin: 0;
    font-style: italic;
} */


.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #666;
    animation: fadeIn 0.3s ease;
}

.empty-illustration {
    margin-bottom: 20px;
    opacity: 0.8;
}

.empty-text {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 20px;
}

.dy-article-title {
    font-size: 18px !important;
}







@media (max-width: 768px) {
    #nav1-extend {
        display: flex;
        justify-content: left;
        align-items: center;
        padding: 20px 0;
        margin: 0 auto;
        max-height: 100px;
        max-width: 1280px;
        z-index: 1000;
    }

    #nav2 .tagselect {
        display: flex;
    }

    #nav2 .taggroup {
        display: none;
    }

    /* 移动端下拉菜单保持垂直布局 */
    .dropdown-options {
        min-width: 160px;
        flex-direction: row;
        padding: 8px 0;
    }

    .dropdown-group {
        border-right: none !important;
        padding-right: 0 !important;
        margin-right: 0 !important;
        border-bottom: 1px solid rgba(128, 128, 128, 0.2);
        padding-bottom: 8px;
        margin-bottom: 8px;
    }

    .dropdown-group:last-child {
        border-bottom: none;
        margin-bottom: 0;
        padding-bottom: 0;
    }

    .dropdown-group-title {
        font-size: 0.75rem;
        padding: 4px 20px 6px 20px;
        border-bottom: 1px solid rgba(128, 128, 128, 0.15);
        margin-bottom: 4px;
    }



    .dropdown-option {
        margin: 0;
        padding: 5px 20px;
    }

    .dropdown-option:hover {
        background: transparent;
    }

}

/* 中等屏幕优化 - 平板设备 */
@media (min-width: 769px) and (max-width: 1024px) {
    .dropdown-options {
        min-width: 240px;
    }

    .dropdown-group-title {
        font-size: 0.7rem;
        padding: 3px 10px 6px 10px;
    }

    .dropdown-option {
        padding: 5px 10px;
        margin: 0 2px;
        font-size: 0.9rem;
    }

    .taggroup button {
        min-width: 70px;
        padding: 8px 16px;
    }
}

/* PC端标签优化 - 大屏幕样式 */
@media (min-width: 769px) {
    .taggroup {
        position: relative;
        display: flex;
        gap: 16px;
        align-items: flex-start;
        justify-content: center;
        padding: 12px 20px;
        border-radius: 16px;
        backdrop-filter: blur(10px);
        flex-wrap: wrap;
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
    }

    .tag-column {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
        align-items: center;
        justify-content: center;
    }

    /* 在中等屏幕上调整间距 */
    @media (max-width: 1024px) {
        .taggroup {
            gap: 12px;
        }

        .tag-column {
            gap: 6px;
        }
    }

    .taggroup button {
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.15);
        color: var(--color-text);
        padding: 10px 22px;
        border-radius: 12px;
        cursor: pointer;
        font-weight: 500;
        font-size: 15px;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        font-family: inherit;
        overflow: hidden;
        backdrop-filter: blur(8px);
        min-width: 90px;
        white-space: nowrap;
        flex-shrink: 0;
        text-align: center;
        line-height: 1.2;
    }

    .taggroup button::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
        opacity: 0;
        transition: opacity 0.3s ease;
        border-radius: inherit;
    }

    .taggroup button:hover {
        background: rgba(255, 255, 255, 0.15);
        border-color: rgba(255, 255, 255, 0.25);
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .taggroup button:hover::before {
        opacity: 1;
    }

    .taggroup button.active {
        background: linear-gradient(135deg, var(--color-text), rgba(255, 255, 255, 0.9));
        color: var(--color-bg);
        border-color: transparent;
        font-weight: 600;
        transform: translateY(-1px);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    }

    .taggroup button.active::before {
        opacity: 0;
    }

    .taggroup .tag-divider {
        color: var(--color-text);
        opacity: 0.3;
        font-size: 20px;
        line-height: 1;
        margin: 0 8px;
        user-select: none;
        display: inline-flex;
        align-items: center;
        font-weight: 300;
    }

    /* 为不同类型的标签添加特殊样式 */
    .taggroup button[data-tag="latest"],
    .taggroup button[data-tag="audit"],
    .taggroup button[data-tag="history"],
    .taggroup button[data-tag="favorite"] {
        background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(59, 130, 246, 0.08));
        border-color: rgba(59, 130, 246, 0.3);
    }

    .taggroup button[data-tag="latest"]:hover,
    .taggroup button[data-tag="audit"]:hover,
    .taggroup button[data-tag="history"]:hover,
    .taggroup button[data-tag="favorite"]:hover {
        background: linear-gradient(135deg, rgba(59, 130, 246, 0.25), rgba(59, 130, 246, 0.15));
        border-color: rgba(59, 130, 246, 0.5);
    }

    .taggroup button[data-tag="latest"].active,
    .taggroup button[data-tag="audit"].active,
    .taggroup button[data-tag="history"].active,
    .taggroup button[data-tag="favorite"].active {
        background: linear-gradient(135deg, #3b82f6, #60a5fa);
        color: white;
        border-color: transparent;
    }

    /* 分类标签的特殊样式 */
    .taggroup button[data-tag="news"],
    .taggroup button[data-tag="stories"],
    .taggroup button[data-tag="fun"],
    .taggroup button[data-tag="knowledge"],
    .taggroup button[data-tag="life"] {
        background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(34, 197, 94, 0.05));
        border-color: rgba(34, 197, 94, 0.2);
    }

    .taggroup button[data-tag="news"]:hover,
    .taggroup button[data-tag="stories"]:hover,
    .taggroup button[data-tag="fun"]:hover,
    .taggroup button[data-tag="knowledge"]:hover,
    .taggroup button[data-tag="life"]:hover {
        background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(34, 197, 94, 0.1));
        border-color: rgba(34, 197, 94, 0.4);
    }

    .taggroup button[data-tag="news"].active,
    .taggroup button[data-tag="stories"].active,
    .taggroup button[data-tag="fun"].active,
    .taggroup button[data-tag="knowledge"].active,
    .taggroup button[data-tag="life"].active {
        background: linear-gradient(135deg, #22c55e, #4ade80);
        color: white;
        border-color: transparent;
    }

    /* Tags 下拉框美化 - PC端样式 */
    #tagsDropdown {
        position: relative;
        user-select: none;
        display: block;
    }

    #tagsDropdown .dropdown-toggle {
        border: 1px solid rgba(59, 130, 246, 0.2);
        color: var(--color-text);
        padding: 8px 10px;
        border-radius: 12px;
        cursor: pointer;
        font-weight: 500;
        font-size: 15px;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        font-family: inherit;
        overflow: hidden;
        backdrop-filter: blur(8px);
        min-width: auto;
        gap: 8px;
    }

    #tagsDropdown .dropdown-toggle::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
        opacity: 0;
        transition: opacity 0.3s ease;
        border-radius: inherit;
    }

    #tagsDropdown .dropdown-toggle:hover {
        border-color: rgba(59, 130, 246, 0.3);
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
    }

    #tagsDropdown .dropdown-toggle:hover::before {
        opacity: 1;
    }

    #tagsDropdown .dropdown-toggle span:first-child {
        font-weight: 600;
        margin-right: 4px;
    }

    #tagsDropdown .dropdown-toggle span:last-child {
        font-weight: 600;
        position: relative;
    }

    #tagsDropdown .dropdown-options {
        position: absolute;
        top: calc(100% + 12px);
        left: 0;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.9));
        backdrop-filter: blur(20px);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 16px;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
        display: none;
        flex-direction: row;
        z-index: 1000;
        overflow: hidden;
        min-width: 280px;
        animation: dropdownFadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    #tagsDropdown .dropdown-option {
        padding: 12px 20px;
        cursor: pointer;
        transition: all 0.3s ease;
        color: var(--color-text);
        font-weight: 500;
        position: relative;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    #tagsDropdown .dropdown-option:last-child {
        border-bottom: none;
    }

    #tagsDropdown .dropdown-option:hover {
        background: linear-gradient(90deg,
                rgba(59, 130, 246, 0.08) 0%,
                rgba(59, 130, 246, 0.04) 100%);
        transform: translateY(-1px);
        box-shadow: inset 3px 0 0 rgba(59, 130, 246, 0.4);
    }

    #tagsDropdown .option-selected {
        color: #3b82f6;
        font-weight: 600;
        position: relative;
        box-shadow: inset 3px 0 0 #3b82f6;
    }

    #tagsDropdown .option-selected:hover {
        box-shadow: inset 3px 0 0 #2563eb;
    }

    #tagsDropdown .arrow {
        width: 10px;
        height: 10px;
        border: solid var(--color-text);
        border-width: 0 2px 2px 0;
        transform: rotate(45deg);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        margin-left: 6px;
        filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
        opacity: 0.8;
    }

    #tagsDropdown.open .arrow {
        transform: rotate(-135deg);
        filter: drop-shadow(0 -2px 4px rgba(0, 0, 0, 0.15));
        opacity: 1;
    }

    #tagsDropdown .dropdown-toggle:hover .arrow {
        opacity: 1;
        transform: rotate(45deg) scale(1.1);
    }

    #tagsDropdown.open:hover .arrow {
        transform: rotate(-135deg) scale(1.1);
    }

    #tagsDropdown.open .dropdown-toggle {
        border-color: rgba(59, 130, 246, 0.4);
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12), 0 8px 25px rgba(59, 130, 246, 0.2);
    }

    #tagsDropdown.open .dropdown-options {
        display: flex;
    }

    /* Level 下拉框美化 - PC端样式 */
    #dropdown {
        position: relative;
        user-select: none;
        display: block;
    }

    .dropdown-toggle {
        /* background: linear-gradient(135deg, rgba(34, 197, 94, 0.06), rgba(34, 197, 94, 0.03)); */
        border: 1px solid rgba(34, 197, 94, 0.2);
        color: var(--color-text);
        padding: 8px 10px;
        border-radius: 12px;
        cursor: pointer;
        font-weight: 500;
        font-size: 15px;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        font-family: inherit;
        overflow: hidden;
        backdrop-filter: blur(8px);
        min-width: auto;
        gap: 8px;
    }

    .dropdown-toggle::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
        opacity: 0;
        transition: opacity 0.3s ease;
        border-radius: inherit;
    }

    .dropdown-toggle:hover {
        /* background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(34, 197, 94, 0.05)); */
        border-color: rgba(34, 197, 94, 0.3);
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(34, 197, 94, 0.15);
    }

    .dropdown-toggle:hover::before {
        opacity: 1;
    }

    .dropdown-toggle span:first-child {
        font-weight: 600;
        margin-right: 4px;
    }

    .dropdown-toggle span:last-child {
        font-weight: 600;
        position: relative;
    }

    .dropdown-options {
        position: absolute;
        top: calc(100% + 12px);
        left: 0;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.9));
        backdrop-filter: blur(20px);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 16px;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
        display: none;
        flex-direction: row;
        z-index: 1000;
        overflow: hidden;
        min-width: 160px;
        animation: dropdownFadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    @keyframes dropdownFadeIn {
        from {
            opacity: 0;
            transform: translateY(-10px) scale(0.95);
        }

        to {
            opacity: 1;
            transform: translateY(0) scale(1);
        }
    }

    .dropdown-option {
        padding: 12px 20px;
        cursor: pointer;
        transition: all 0.3s ease;
        color: var(--color-text);
        font-weight: 500;
        position: relative;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .dropdown-option:last-child {
        border-bottom: none;
    }

    .dropdown-option:hover {
        background: linear-gradient(90deg,
                rgba(34, 197, 94, 0.08) 0%,
                rgba(34, 197, 94, 0.04) 100%);
        transform: translateY(-1px);
        box-shadow: inset 3px 0 0 rgba(34, 197, 94, 0.4);
    }

    .option-selected {
        /* background: linear-gradient(90deg,
            rgba(34, 197, 94, 0.12) 0%,
            rgba(34, 197, 94, 0.06) 100%); */
        color: #16a34a;
        font-weight: 600;
        position: relative;
        box-shadow: inset 3px 0 0 #16a34a;
    }

    .option-selected:hover {
        /* background: linear-gradient(90deg,
            rgba(34, 197, 94, 0.15) 0%,
            rgba(34, 197, 94, 0.08) 100%); */
        box-shadow: inset 3px 0 0 #15803d;
    }

    .arrow {
        width: 10px;
        height: 10px;
        border: solid var(--color-text);
        border-width: 0 2px 2px 0;
        transform: rotate(45deg);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        margin-left: 6px;
        filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
        opacity: 0.8;
    }

    .dropdown.open .arrow {
        transform: rotate(-135deg);
        filter: drop-shadow(0 -2px 4px rgba(0, 0, 0, 0.15));
        opacity: 1;
    }

    .dropdown-toggle:hover .arrow {
        opacity: 1;
        transform: rotate(45deg) scale(1.1);
    }

    .dropdown.open:hover .arrow {
        transform: rotate(-135deg) scale(1.1);
    }

    .dropdown.open .dropdown-toggle {
        /* background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(34, 197, 94, 0.1)); */
        border-color: rgba(34, 197, 94, 0.4);
        box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.12), 0 8px 25px rgba(34, 197, 94, 0.2);
    }

    .dropdown.open .dropdown-options {
        display: flex;
    }

    /* 深色主题下的下拉框样式 */
    :root[data-theme="dark"] .dropdown-toggle {
        /* background: linear-gradient(135deg, rgba(34, 197, 94, 0.05), rgba(34, 197, 94, 0.02)); */
        border-color: rgba(34, 197, 94, 0.15);
    }

    :root[data-theme="dark"] .dropdown-toggle:hover {
        /* background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(34, 197, 94, 0.05)); */
        border-color: rgba(34, 197, 94, 0.25);
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(34, 197, 94, 0.1);
    }

    :root[data-theme="dark"] .dropdown-options {
        background: linear-gradient(135deg, rgba(30, 41, 59, 0.95), rgba(30, 41, 59, 0.9));
        border-color: rgba(255, 255, 255, 0.15);
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    }

    :root[data-theme="dark"] .dropdown-option {
        color: rgba(255, 255, 255, 0.9);
        border-bottom-color: rgba(255, 255, 255, 0.08);
    }

    :root[data-theme="dark"] .dropdown-option:hover {
        background: linear-gradient(90deg,
                rgba(34, 197, 94, 0.12) 0%,
                rgba(34, 197, 94, 0.06) 100%);
        box-shadow: inset 3px 0 0 rgba(74, 222, 128, 0.5);
    }

    :root[data-theme="dark"] .dropdown-group-title {
        color: rgba(255, 255, 255, 0.6);
    }

    :root[data-theme="dark"] .dropdown-group:first-child {
        border-right-color: rgba(255, 255, 255, 0.15);
    }

    :root[data-theme="dark"] .dropdown-group:not(:last-child) {
        border-bottom-color: rgba(255, 255, 255, 0.1);
    }

    :root[data-theme="dark"] .dropdown-option:hover {
        background: rgba(255, 255, 255, 0.1);
    }

    :root[data-theme="dark"] .option-selected {
        /* background: linear-gradient(90deg,
            rgba(34, 197, 94, 0.15) 0%,
            rgba(34, 197, 94, 0.08) 100%); */
        color: #4ade80;
        font-weight: 600;
        box-shadow: inset 3px 0 0 #4ade80;
    }

    :root[data-theme="dark"] .option-selected:hover {
        /* background: linear-gradient(90deg,
            rgba(34, 197, 94, 0.18) 0%,
            rgba(34, 197, 94, 0.1) 100%); */
        box-shadow: inset 3px 0 0 #86efac;
    }

    :root[data-theme="dark"] .arrow {
        border-color: rgba(255, 255, 255, 0.8);
    }

    /* Tags 下拉框深色主题样式 */
    :root[data-theme="dark"] #tagsDropdown .dropdown-toggle {
        border-color: rgba(59, 130, 246, 0.15);
    }

    :root[data-theme="dark"] #tagsDropdown .dropdown-toggle:hover {
        border-color: rgba(59, 130, 246, 0.25);
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(59, 130, 246, 0.1);
    }

    :root[data-theme="dark"] #tagsDropdown .dropdown-options {
        background: linear-gradient(135deg, rgba(30, 41, 59, 0.95), rgba(30, 41, 59, 0.9));
        border-color: rgba(255, 255, 255, 0.15);
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    }

    :root[data-theme="dark"] #tagsDropdown .dropdown-option {
        color: rgba(255, 255, 255, 0.9);
        border-bottom-color: rgba(255, 255, 255, 0.08);
    }

    :root[data-theme="dark"] #tagsDropdown .dropdown-option:hover {
        background: linear-gradient(90deg,
                rgba(59, 130, 246, 0.12) 0%,
                rgba(59, 130, 246, 0.06) 100%);
        box-shadow: inset 3px 0 0 rgba(96, 165, 250, 0.5);
    }

    :root[data-theme="dark"] #tagsDropdown .option-selected {
        color: #60a5fa;
        font-weight: 600;
        box-shadow: inset 3px 0 0 #60a5fa;
    }

    :root[data-theme="dark"] #tagsDropdown .option-selected:hover {
        box-shadow: inset 3px 0 0 #93c5fd;
    }


    :root[data-theme="dark"] #tagsDropdown .arrow {
        border-color: rgba(255, 255, 255, 0.8);
    }

    :root[data-theme="dark"] #tagsDropdown.open .dropdown-toggle {
        border-color: rgba(59, 130, 246, 0.3);
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), 0 8px 25px rgba(59, 130, 246, 0.15);
    }

    :root[data-theme="dark"] .dropdown.open .dropdown-toggle {
        /* background: linear-gradient(135deg, rgba(34, 197, 94, 0.12), rgba(34, 197, 94, 0.08)); */
        border-color: rgba(34, 197, 94, 0.3);
        box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1), 0 8px 25px rgba(34, 197, 94, 0.15);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    #nav1 {
        padding: 20px 16px;
    }

    .articles-grid {
        grid-template-columns: 1fr;
        padding: 0rem;
    }

    .article-content {
        width: 90%;
        overflow-y: hidden;
        overflow-x: hidden;
        touch-action: pan-x pan-y pinch-zoom;
        -webkit-overflow-scrolling: touch;
    }

    .article-card {
        border-radius: 0;
        border: none !important;
    }

    .section-title {
        font-size: 1.5rem;
    }

    /* 移动端隐藏PC端的tags和level下拉框 */
    #tagsDropdown {
        /* display: none; */
    }

    #dropdown {
        /* display: none; */
    }

    /* 统一使用PC端的列式布局 */
    #tagsDropdown.open .dropdown-options {
        display: flex;
        flex-direction: row;
    }

    #dropdown.open .dropdown-options {
        display: flex;
        flex-direction: column;
    }

    .dropdown-toggle {
        gap: 10px;
        /* width: 250px; */
    }

    /* 移动端日期标签优化 */
    .timeline-container {
        padding: 15px 0;
    }

    .timeline {
        height: 45px;
    }

    .time-point {
        padding: 4px 24px;
        font-size: 18px;
        letter-spacing: 0.3px;
    }

    .menu {
        gap: 10px;
    }

    .article-description {
        padding: 0 10px;
    }

    .main-content {
        padding: 1rem 0;
    }

    #nav2 {
        font-size: 19px;
    }
}