src/styles/main.css

@import 'tailwindcss';
@import './layout-styles.css';
@import './navbar.css';
@import './waves.css';
@import './transition.css'; 
@import './custom-scrollbar.css';

@plugin '@tailwindcss/typography';

/* 暗色模式选择器配置 */
@custom-variant dark (&:where(.dark, .dark *));

/* Tailwind v4 配置 - 从 tailwind.config.cjs 迁移 */
@theme {
  --font-sans:
    'Roboto', 'sans-serif', ui-sans-serif, system-ui, sans-serif,
    'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
}

/* 自定义工具类 - Tailwind v4 使用 @utility 定义 */
@utility expand-animation {
  position: relative;
  z-index: 0;
  &::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    scale: 0.85;
    z-index: -10;
    transition: all 0.15s ease-out;
  }
  &:hover::before {
    background-color: var(--btn-plain-bg-hover);
    scale: 1;
  }
  &:active::before {
    background-color: var(--btn-plain-bg-active);
  }
  &:active {
    background: none;
  }
}

/* 确保平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 页面顶部渐变高光效果 */
.top-gradient-highlight {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 180px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0.3) 30%, rgba(255, 255, 255, 0.15) 60%, rgba(255, 255, 255, 0.05) 80%, transparent 100%);
    pointer-events: none;
    z-index: 20;
    transition: all var(--duration-medium) var(--ease-standard);
}

/* 暗色主题下的渐变高光效果 */
:root.dark .top-gradient-highlight {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.3) 30%, rgba(0, 0, 0, 0.15) 60%, rgba(0, 0, 0, 0.05) 80%, transparent 100%);
}

@layer components {
    /* View Transitions API 主题切换动画 */
    /* 为整个文档根元素设置视图过渡 */
    ::view-transition-old(root),
    ::view-transition-new(root) {
        animation-duration: 0.5s;
        animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
        /* 使用混合模式使颜色过渡更平滑 */
        mix-blend-mode: normal;
    }
    
    /* 视图过渡组 - 使用交叉淡化效果 */
    ::view-transition-group(root) {
        animation-duration: 0.5s;
        animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    /* 淡出旧视图 - 使用更平滑的曲线 */
    ::view-transition-old(root) {
        animation-name: theme-fade-out;
        /* 确保背景色同步切换 */
        z-index: 2;
    }
    
    /* 淡入新视图 - 使用更平滑的曲线 */
    ::view-transition-new(root) {
        animation-name: theme-fade-in;
        /* 确保新视图在上层 */
        z-index: 1;
    }
    
    /* 定义淡出动画 - 使用更平滑的缓动函数 */
    @keyframes theme-fade-out {
        0% {
            opacity: 1;
        }
        100% {
            opacity: 0;
        }
    }
    
    /* 定义淡入动画 - 从下层淡入 */
    @keyframes theme-fade-in {
        0% {
            opacity: 0;
        }
        100% {
            opacity: 1;
        }
    }
    
    /* 确保边框和分隔线元素在主题切换时有更明确的过渡时长 */
    .transition,
    [class*="border"],
    [class*="transition"] {
        transition-property: color, background-color, border-color, text-decoration-color, fill, stroke;
        transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
        transition-duration: 0.15s;
    }
    
    /* 主题过渡保护类 - 仅在非 View Transitions 模式下使用 */
    /* 当使用 View Transitions API 时，浏览器会自动处理过渡，不需要禁用 transition */
    .is-theme-transitioning:not(.use-view-transition) *,
    .is-theme-transitioning:not(.use-view-transition) *::before,
    .is-theme-transitioning:not(.use-view-transition) *::after {
        transition: none !important;
        animation: none !important;
    }
    
    /* 在主题切换时禁用代码块的复杂效果以提升性能 */
    /* 使用 View Transitions 时也需要禁用代码块动画，因为它们太多了 */
    .is-theme-transitioning .expressive-code,
    .is-theme-transitioning .expressive-code * {
        transition: none !important;
        animation: none !important;
        will-change: auto !important;
    }
    
    /* 禁用复杂选择器元素的过渡 - 仅在非 View Transitions 模式下 */
    .is-theme-transitioning:not(.use-view-transition) .float-panel,
    .is-theme-transitioning:not(.use-view-transition) .float-panel *,
    .is-theme-transitioning:not(.use-view-transition) .music-player,
    .is-theme-transitioning:not(.use-view-transition) .music-player *,
    .is-theme-transitioning:not(.use-view-transition) .widget,
    .is-theme-transitioning:not(.use-view-transition) .widget *,
    .is-theme-transitioning:not(.use-view-transition) .dropdown-content,
    .is-theme-transitioning:not(.use-view-transition) .dropdown-content * {
        transition: none !important;
        animation: none !important;
    }
    
    /* 强制使用 contain 隔离渲染上下文 - 仅在非 View Transitions 模式下 */
    .is-theme-transitioning:not(.use-view-transition) .post-card,
    .is-theme-transitioning:not(.use-view-transition) .widget,
    .is-theme-transitioning:not(.use-view-transition) .float-panel {
        contain: layout style paint !important;
    }
    
    /* 波浪效果精确同步处理 - 仅在非 View Transitions 模式下 */
    .is-theme-transitioning:not(.use-view-transition) svg use {
        /* 禁用过渡但保持动画 */
        transition: none;
        /* 强制立即继承页面背景色 */
        fill: currentColor;
    }
    
    /* 导航栏主题切换保护 - 仅在非 View Transitions 模式下禁用过渡 */
    .is-theme-transitioning:not(.use-view-transition) #navbar > div,
    .is-theme-transitioning:not(.use-view-transition) #navbar[data-transparent-mode] > div,
    .is-theme-transitioning:not(.use-view-transition) #navbar[data-transparent-mode].scrolled > div,
    .is-theme-transitioning:not(.use-view-transition) body.wallpaper-transparent #navbar > div,
    .is-theme-transitioning:not(.use-view-transition) body.wallpaper-transparent #navbar[data-transparent-mode] > div,
    .is-theme-transitioning:not(.use-view-transition) body.wallpaper-transparent #navbar[data-transparent-mode].scrolled > div,
    .is-theme-transitioning:not(.use-view-transition) #banner-wrapper ~ * #navbar > div,
    .is-theme-transitioning:not(.use-view-transition) #banner-wrapper ~ * #navbar[data-transparent-mode] > div,
    .is-theme-transitioning:not(.use-view-transition) body:has(#banner-wrapper) #navbar > div,
    .is-theme-transitioning:not(.use-view-transition) body:has(#banner-wrapper) #navbar[data-transparent-mode] > div {
        transition: none !important;
        backdrop-filter: none !important;
    }
    
    /* 导航栏相关浮动面板的过渡禁用 */
    .is-theme-transitioning .dropdown-content,
    .is-theme-transitioning .float-panel,
    .is-theme-transitioning #display-setting,
    .is-theme-transitioning #nav-menu-panel,
    .is-theme-transitioning #translate-panel,
    .is-theme-transitioning #mobile-toc-panel,
    .is-theme-transitioning #search-panel {
        transition: none !important;
        backdrop-filter: none !important;
    }
    
    /* 波浪容器的颜色传递 */
    .is-theme-transitioning #header-waves {
        /* 设置当前颜色为页面背景色，供SVG继承 */
        color: var(--page-bg);
        /* 确保与页面在同一合成层 */
        isolation: isolate;
        /* 优化渲染性能 */
        contain: layout style paint;
        /* GPU层合成 */
        transform: translateZ(0);
        /* 确保没有背景色 */
        background: transparent;
    }
    
    .is-theme-transitioning #header-waves use {
        /* 保持动画连续性 */
        will-change: transform;
        /* GPU优化 */
        transform: translateZ(0);
    }
    
    .card-base {
        @apply rounded-(--radius-large) overflow-hidden bg-(--card-bg) transition-colors duration-150;
    }
    .card-base-transparent {
        @apply rounded-(--radius-large) overflow-hidden bg-(--card-bg-transparent) transition-colors duration-150;
    }

    /* 开启边框和阴影效果时的样式 */
    .enable-card-border .card-base {
        @apply transition-all duration-300 border border-(--line-divider) shadow-xs;
    }
    .enable-card-border .card-base-transparent {
        @apply transition-all duration-300 border border-(--line-divider) shadow-xs;
    }

    /* 导航栏样式适配 */
    .enable-card-border #navbar > div:not(.absolute) {
        @apply transition-all duration-300 border shadow-xs;
        border-color: var(--line-divider) !important;
    }
    
    /* 全屏壁纸模式下的半透明效果 */
    .wallpaper-transparent .card-base {
        background-color: var(--card-bg-transparent) !important;
    }
 
    
    .wallpaper-transparent #navbar > div {
        background-color: var(--card-bg-transparent) !important;
    }
    
    .wallpaper-transparent .btn-card {
        background-color: var(--card-bg-transparent) !important;
    }
    
    h1, h2, h3, h4, h5, h6, p, a, span, li, ul, ol, blockquote, code, pre, table, th, td, strong {
        @apply transition-colors duration-150;
    }
    .card-shadow {
        @apply drop-shadow-[0_2px_4px_rgba(0,0,0,0.005)]
    }
    .link {
        @apply transition-colors duration-150 rounded-md p-1 -m-1 expand-animation;
    }
    .link-lg {
        @apply transition-colors duration-150 rounded-md p-1.5 -m-1.5 expand-animation;
    }
    .float-panel {
        @apply top-21 rounded-(--radius-large) overflow-hidden bg-(--card-bg) transition-colors duration-150 shadow-xl border border-black/5 dark:border-white/10
    }
    .float-panel-closed {
        @apply -translate-y-1 opacity-0 pointer-events-none
    }
    .float-panel-closed * {
        @apply pointer-events-none
    }
    .search-panel mark {
        @apply bg-transparent text-(--primary)
    }

    .btn-card {
        @apply transition-colors duration-150 flex items-center justify-center bg-(--card-bg) hover:bg-(--btn-card-bg-hover)
        active:bg-(--btn-card-bg-active)
    }
    .btn-card.disabled {
        @apply pointer-events-none text-black/10 dark:text-white/10
    }
    .btn-plain {
        @apply transition-colors duration-150 relative flex items-center justify-center bg-none
        text-black/75 hover:text-(--primary) dark:text-white/75 dark:hover:text-(--primary);
        &:not(.scale-animation) {
            @apply hover:bg-(--btn-plain-bg-hover) active:bg-(--btn-plain-bg-active)
        }
        &.scale-animation {
            @apply expand-animation;
        }
    }
    .current-theme-btn {
        @apply bg-(--btn-plain-bg-hover) text-(--primary);
    }
    .btn-regular {
        @apply transition-colors duration-150 flex items-center justify-center bg-(--btn-regular-bg) hover:bg-(--btn-regular-bg-hover) active:bg-(--btn-regular-bg-active)
        text-(--btn-content) dark:text-white/75
    }

    .link-underline {
        @apply transition-colors duration-150 underline decoration-2 decoration-dashed decoration-(--link-underline)
        hover:decoration-(--link-hover) active:decoration-(--link-active) underline-offset-[0.25rem]
    }

    .toc-hide,
    .toc-not-ready {
        @apply opacity-0 pointer-events-none
    }

    /* #toc-inner-wrapper {
        mask-image: linear-gradient(to bottom, transparent 0%, black 2rem, black calc(100% - 2rem), transparent 100%);
    } */

    .hide-scrollbar {
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    .hide-scrollbar::-webkit-scrollbar {
        display: none;
    }

    .text-90 {
        @apply text-black/90 dark:text-white/90
    }
    .text-75 {
        @apply text-black/75 dark:text-white/75
    }
    .text-50 {
        @apply text-black/50 dark:text-white/50
    }
    .text-30 {
        @apply text-black/30 dark:text-white/30
    }
    .text-25 {
        @apply text-black/25 dark:text-white/25
    }

    /* 下拉菜单样式 */
    .dropdown-container {
        @apply relative;
    }

    .dropdown-menu {
        @apply absolute top-full left-0 pt-2 opacity-0 invisible pointer-events-none transition-all duration-200 ease-out transform translate-y-[-8px] z-50;
    }

    .dropdown-container:hover .dropdown-menu,
    .dropdown-container:focus-within .dropdown-menu {
        @apply opacity-100 visible pointer-events-auto translate-y-0;
    }

    .dropdown-container:hover .dropdown-arrow,
    .dropdown-container:focus-within .dropdown-arrow {
        @apply rotate-180;
    }

    .dropdown-content {
        @apply bg-(--card-bg) rounded-(--radius-large) shadow-xl border border-black/5 dark:border-white/10 py-2 min-w-48;
    }

    .dropdown-item {
        @apply flex items-center justify-between px-4 py-2.5 text-black/75 dark:text-white/75 hover:text-(--primary) hover:bg-(--btn-plain-bg-hover) transition-colors duration-150 font-medium;
    }

    .dropdown-item:first-child {
        @apply rounded-t-[calc(var(--radius-large)-0.5rem)];
    }

    .dropdown-item:last-child {
        @apply rounded-b-[calc(var(--radius-large)-0.5rem)];
    }

    /* 移动端菜单样式 */
    .mobile-submenu {
        @apply max-h-0 overflow-hidden transition-all duration-300 ease-in-out;
    }
    
    .mobile-dropdown[data-expanded="true"] .mobile-submenu {
        @apply max-h-96;
    }
    
    .mobile-dropdown[data-expanded="true"] .mobile-dropdown-arrow {
        @apply rotate-180;
    }

    /* 响应式隐藏 */
    @media (max-width: 768px) {
        .dropdown-container {
            @apply hidden;
        }
    }

    /* 无障碍支持 */
    .dropdown-container:focus-within .dropdown-menu {
        @apply opacity-100 visible pointer-events-auto translate-y-0;
    }

    .dropdown-item:focus {
        @apply outline-hidden;
    }

    .mobile-dropdown button:focus {
        @apply outline-hidden;
    }

    .meta-icon {
        @apply w-8 h-8 transition-colors duration-150 rounded-md flex items-center justify-center bg-(--btn-regular-bg)
        text-(--btn-content) mr-2
    }
    .with-divider {
        @apply before:content-['/'] before:ml-1.5 before:mr-1.5 before:text-(--meta-divider) before:text-sm
        before:font-medium before:first-of-type:hidden before:transition-colors before:duration-150
    }

    .btn-regular-dark {
        @apply flex items-center justify-center
        bg-[oklch(0.45_0.01_var(--hue))] hover:bg-[oklch(0.50_0.01_var(--hue))] active:bg-[oklch(0.55_0.01_var(--hue))]
        dark:bg-[oklch(0.30_0.02_var(--hue))] dark:hover:bg-[oklch(0.35_0.03_var(--hue))] dark:active:bg-[oklch(0.40_0.03_var(--hue))]
    }
    .btn-regular-dark.success {
        @apply bg-[oklch(0.75_0.14_var(--hue))] dark:bg-[oklch(0.75_0.14_var(--hue))]
    }
}

.custom-md img, #post-cover img {
    @apply cursor-zoom-in
}

::selection {
    background-color: var(--selection-bg)
}

.dash-line {
    position: relative;
}

.dash-line::before {
    content: "";
    position: absolute;
    width: 10%;
    height: 100%;
    left: calc(50% - 1px);
    border-left: 2px dashed var(--line-color);
    pointer-events: none;
    transition: all 0.3s;
    transform: translateY(-50%);
}


/*剧透效果*/
.custom-md spoiler {
  --_spoiler-mask: var(--primary);
  @apply hover:bg-transparent px-1 py-0.5 overflow-hidden rounded-md transition-all duration-150;
  background-color: var(--_spoiler-mask);
  box-decoration-break: clone;
  &:not(:hover) {
    color: var(--_spoiler-mask);
    * {
        color: var(--_spoiler-mask);
    }
  }
}

/* 浅色模式：使用更浅的主题色且完全不透明 */
:root:not(.dark) .custom-md spoiler {
  --_spoiler-mask: color-mix(in oklch, var(--primary) 55%, white 45%);
}

/* 文章列表布局切换样式 */
.post-list-layout-switch {
  @apply flex items-center gap-2 mb-6 p-3 bg-(--card-bg) rounded-lg border border-(--line-divider);
}

.post-list-layout-switch span {
  @apply text-sm text-(--text-secondary);
}

.post-list-layout-switch .layout-buttons {
  @apply flex gap-1;
}

.post-list-layout-switch button {
  @apply px-3 py-1.5 text-sm rounded-md transition-colors;
}

.post-list-layout-switch button.active {
  @apply bg-(--primary) text-white;
}

.post-list-layout-switch button:not(.active) {
  @apply bg-(--bg-secondary) text-(--text-secondary) hover:bg-(--bg-hover);
}

/* 网格模式下的文章卡片样式调整 */
.post-list-container.grid-mode .post-card-item {
  @apply w-full;
}

.post-list-container.grid-mode .post-card-item a[href] {
  @apply text-xl before:h-4 before:top-[28px] before:left-[-18px] truncate;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
  max-height: 2.8em; /* 2行的高度 */
}

.post-list-container.grid-mode .post-card-item a[aria-label] {
  @apply hidden;
}

.post-list-container.grid-mode .post-card-item .btn-regular {
  @apply hidden;
}

.post-list-container.grid-mode .post-card-item .line-clamp-1 {
  @apply line-clamp-2;
}

/* 网格模式下的卡片内容区域调整 */
.post-list-container.grid-mode .post-card-item > div {
  @apply p-4;
}

/* 网格模式下的元数据样式调整 */
.post-list-container.grid-mode .post-card-item .post-meta {
  @apply mb-2;
}

/* 网格模式下的描述文本调整 */
.post-list-container.grid-mode .post-card-item .description {
  @apply text-sm mb-2 line-clamp-2;
}

/* 网格模式下的统计信息调整 */
.post-list-container.grid-mode .post-card-item .stats {
  @apply text-xs;
}

/* 响应式分页样式 */
.device-mobile .pagination-info {
  @apply text-xs;
}

.device-tablet .pagination-info {
  @apply text-sm;
}

.device-desktop .pagination-info {
  @apply text-base;
}

/* 分页信息样式 */
.pagination-info {
  @apply text-sm text-(--text-secondary) text-center mb-2;
}