/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #000;
    background-color: #fff;
    /* 优化滚动体验 */
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* =================================
   桌面端特色卡片 (大卡片)
   ================================= */
.featured-card-large {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
    cursor: pointer;
    margin-bottom: 2rem;
    border-radius: 4px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.featured-card-large:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.featured-image-container {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.featured-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.featured-card-large:hover .featured-image-container img {
    transform: scale(1.03);
}

.featured-content-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 48px 32px 32px;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.featured-top-content {
    margin-bottom: 16px;
}

.featured-main-title {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.featured-main-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    opacity: 0.9;
    letter-spacing: -0.01em;
}

.featured-bottom-content {
    display: flex;
    gap: 24px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.6px;
    opacity: 0.8;
}

.featured-category a {
    color: white;
    text-decoration: none;
}

.featured-category a:hover {
    opacity: 0.7;
}

/* =================================
   移动端特色卡片
   ================================= */
.mobile-featured-card {
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    padding: 24px;
    margin-bottom: 2rem;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mobile-featured-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.mobile-featured-top {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.6px;
    opacity: 0.6;
}

.mobile-featured-top a {
    color: inherit;
    text-decoration: none;
}

.mobile-featured-title-area h1 {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.mobile-featured-title-area p {
    font-size: 1rem;
    font-weight: 300;
    opacity: 0.7;
    letter-spacing: -0.01em;
}

/* =================================
   通用展示卡片
   ================================= */
.display-card {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    cursor: pointer;
    margin-bottom: 2rem;
    border-radius: 4px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.display-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.card-image-container {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.card-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.display-card:hover .card-image-container img {
    transform: scale(1.05);
}

.card-content-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 32px 24px 24px;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.card-top-content {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.4px;
    opacity: 0.8;
}

.card-top-content a {
    color: white;
    text-decoration: none;
}

.card-top-content a:hover {
    opacity: 0.7;
}

.card-bottom-content h3 {
    font-size: 1.1rem;
    font-weight: 300;
    margin-bottom: 4px;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.card-bottom-content p {
    font-size: 0.9rem;
    font-weight: 300;
    opacity: 0.8;
    letter-spacing: -0.01em;
}

/* =================================
   侧边栏卡片
   ================================= */
.sidebar-display-card {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    cursor: pointer;
    margin-bottom: 24px;
    border-radius: 4px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.sidebar-display-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.sidebar-display-card:last-child {
    margin-bottom: 0;
}

.sidebar-image-container {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.sidebar-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.sidebar-display-card:hover .sidebar-image-container img {
    transform: scale(1.05);
}

.sidebar-content-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
    color: white;
    padding: 24px 16px 16px;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.sidebar-top-content {
    display: flex;
    gap: 12px;
    margin-bottom: 8px;
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    opacity: 0.8;
}

.sidebar-top-content a {
    color: white;
    text-decoration: none;
}

.sidebar-top-content a:hover {
    opacity: 0.7;
}

.sidebar-bottom-content h3 {
    font-size: 0.95rem;
    font-weight: 300;
    margin-bottom: 4px;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.sidebar-bottom-content p {
    font-size: 0.8rem;
    font-weight: 300;
    opacity: 0.8;
    letter-spacing: -0.01em;
}

/* =================================
   Sticky Scroller 实现
   ================================= */
.sticky-scroller {
    width: 100%;
    position: relative;
    transition: all 0.1s ease-out;
    will-change: transform, position;
}

/* 当Sticky激活时的样式 */
.sticky-scroller.is-sticky {
    position: sticky;
    transform: translateZ(0);
}

/* =================================
   响应式设计
   ================================= */
@media (max-width: 1024px) {
    .featured-main-title {
        font-size: 2rem;
    }
    
    .featured-main-subtitle {
        font-size: 1.1rem;
    }
    
    .featured-content-overlay {
        padding: 32px 24px 24px;
    }
}

@media (max-width: 768px) {
    .display-card {
        margin-bottom: 24px;
    }
    
    .card-content-overlay {
        padding: 24px 16px 16px;
    }
    
    .card-bottom-content h3 {
        font-size: 1rem;
    }
    
    .mobile-featured-title-area h1 {
        font-size: 1.25rem;
    }
}

/* =================================
   文本截断工具类
   ================================= */
.overflow-hidden {
    overflow: hidden;
}

.whitespace-nowrap {
    white-space: nowrap;
}

.text-ellipsis {
    text-overflow: ellipsis;
}

/* =================================
   网格布局工具类
   ================================= */
.block {
    display: block;
}

@media (min-width: 768px) {
    .md\:grid {
        display: grid;
    }
    
    .md\:grid-cols-10 {
        grid-template-columns: repeat(10, minmax(0, 1fr));
    }
    
    .md\:grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    
    .md\:grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    
    .md\:gap-8 {
        gap: 2rem;
    }
}

@media (min-width: 1024px) {
    .lg\:block {
        display: block;
    }
    
    .lg\:hidden {
        display: none;
    }
    
    .lg\:flex {
        display: flex;
    }
    
    .lg\:mb-16 {
        margin-bottom: 4rem;
    }
}

.hidden {
    display: none;
}

.col-span-4 {
    grid-column: span 4 / span 4;
}

.col-span-6 {
    grid-column: span 6 / span 6;
}

.items-start {
    align-items: flex-start;
}

.gap-8 {
    gap: 2rem;
}

.gap-x-8 {
    column-gap: 2rem;
}

.w-full {
    width: 100%;
}

.mb-4 {
    margin-bottom: 1rem;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 1024px) {
    .lg\:px-16 {
        padding-left: 4rem;
        padding-right: 4rem;
    }
}

/* =================================
   性能优化
   ================================= */
.card-image-container img,
.sidebar-image-container img,
.featured-image-container img {
    will-change: transform;
}

.display-card,
.sidebar-display-card,
.featured-card-large,
.mobile-featured-card {
    will-change: transform, box-shadow;
}

/* =================================
   焦点样式
   ================================= */
.display-card:focus,
.sidebar-display-card:focus,
.featured-card-large:focus,
.mobile-featured-card:focus {
    outline: 2px solid #007AFF;
    outline-offset: 2px;
}

/* =================================
   深色模式适配
   ================================= */
@media (prefers-color-scheme: dark) {
    .mobile-featured-card {
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
}

/* =================================
   平滑滚动增强
   ================================= */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* =================================
   移除老旧样式类 (兼容性)
   ================================= */
.case-main,
.main-content,
.content-container,
.main-grid,
.left-content,
.right-sidebar,
.grid-2x2,
.grid-3col,
.sidebar-grid,
.desktop-featured,
.mobile-featured,
.featured-card,
.featured-card-image,
.featured-card-content,
.featured-top,
.featured-title,
.featured-subtitle,
.featured-bottom,
.featured-date,
.featured-category,
.mobile-featured-image,
.mobile-featured-content,
.mobile-featured-top,
.mobile-featured-bottom,
.mobile-featured-title,
.mobile-featured-subtitle,
.mobile-featured-date,
.mobile-featured-category,
.card-image,
.card-content,
.card-top,
.card-bottom,
.card-top-title,
.card-top-subtitle,
.card-bottom-title,
.card-bottom-subtitle,
.sidebar-card,
.sidebar-card-image,
.sidebar-card-content,
.sidebar-card-top,
.sidebar-card-bottom,
.sidebar-card-date,
.sidebar-card-category,
.sidebar-card-title,
.sidebar-card-subtitle,
.sidebar-card-designer,
.sidebar-card-price,
.sticky-sidebar {
    /* 保留为空以避免冲突 */
}

/* =================================
   Leibal风格详情页样式
   ================================= */

/* Hero区域样式 */
.text-2xs {
    font-size: 0.6rem;
    line-height: 1rem;
    letter-spacing: 1.6px;
}

/* Sticky Scroller 样式 */
.sticky-scroller {
    position: relative;
    top: 0;
    width: 100%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

/* 项目描述文字样式 */
.post-content {
    margin-bottom: 2rem;
}

.post-content p {
    margin-bottom: 2rem;
    font-size: 12px;
    line-height: 1.75;
    font-weight: 300;
}

.post-content p:last-child {
    margin-bottom: 0;
}

/* Sticky侧边图片样式 */
.sticky-side-image {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.sticky-side-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.sticky-side-image img:hover {
    transform: scale(1.02);
}

/* 设计详情样式 */
.design-details {
    margin-top: 3rem;
}

.design-detail {
    margin-bottom: 3rem;
}

.design-detail:last-child {
    margin-bottom: 0;
}

.design-detail .aspect-square {
    aspect-ratio: 1 / 1;
    position: relative;
    overflow: hidden;
    border-radius: 4px;
}

.design-detail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.design-detail img:hover {
    transform: scale(1.05);
}

/* 图片序列样式 */
.image-sequence {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.image-sequence > div {
    position: relative;
    margin-bottom: 3rem;
    cursor: pointer;
    overflow: hidden;
}

.image-sequence > div:last-child {
    margin-bottom: 0;
}

.image-sequence img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.image-sequence img:hover {
    transform: scale(1.01);
}

/* Add to MOODS 按钮样式 */
.image-sequence .absolute {
    background: rgba(0, 0, 0, 0.3);
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.image-sequence > div:hover .absolute {
    opacity: 1 !important;
}

/* 响应式设计 */
@media (max-width: 1023px) {
    .sticky-scroller {
        position: static !important;
        top: auto !important;
        transform: none !important;
    }
    
    .post-content {
        margin-bottom: 2rem;
    }
    
    .image-sequence > div {
        margin-bottom: 2rem;
    }
    
    .design-details {
        margin-top: 2rem;
    }
}

@media (max-width: 767px) {
    .text-2xs {
        font-size: 0.55rem;
        letter-spacing: 1.2px;
    }
    
    .post-content p {
        font-size: 11px;
        margin-bottom: 1.5rem;
    }
    
    .image-sequence > div {
        margin-bottom: 1.5rem;
    }
}

/* 性能优化 */
.image-sequence,
.sticky-scroller,
.design-details {
    will-change: transform;
}

/* 无障碍支持 */
@media (prefers-reduced-motion: reduce) {
    .sticky-scroller,
    .image-sequence img,
    .design-detail img,
    .sticky-side-image img {
        transition: none;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    .post-content {
        color: #e5e5e5;
    }
    
    .sticky-side-image {
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .design-detail .aspect-square {
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
}