/* ========== CSS Variables ========== */
:root {
    /* Light theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f4f5f9;
    --bg-hover: #e6e8f0;
    --text-primary: rgba(0, 0, 0, 0.85);
    --text-secondary: rgba(0, 0, 0, 0.65);
    --text-muted: rgba(0, 0, 0, 0.45);
    --text-hint: rgba(0, 0, 0, 0.25);
    --border-color: #ebedf0;
    --accent-color: #1890ff;
    --accent-hover: #40a9ff;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --tag-bg: rgba(0, 0, 0, 0.05);
    --card-radius: 12px;
}

body.dark-theme {
    /* Dark theme */
    --bg-primary: #292a2d;
    --bg-secondary: #1a1b1e;
    --bg-hover: #3b3d42;
    --text-primary: rgba(255, 255, 255, 0.85);
    --text-secondary: rgba(255, 255, 255, 0.65);
    --text-muted: rgba(255, 255, 255, 0.45);
    --text-hint: rgba(255, 255, 255, 0.25);
    --border-color: #3b3d42;
    --accent-color: #1890ff;
    --accent-hover: #40a9ff;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --tag-bg: rgba(255, 255, 255, 0.08);
}

@media (prefers-color-scheme: dark) {
    body:not(.light-theme) {
        --bg-primary: #292a2d;
        --bg-secondary: #1a1b1e;
        --bg-hover: #3b3d42;
        --text-primary: rgba(255, 255, 255, 0.85);
        --text-secondary: rgba(255, 255, 255, 0.65);
        --text-muted: rgba(255, 255, 255, 0.45);
        --text-hint: rgba(255, 255, 255, 0.25);
        --border-color: #3b3d42;
        --shadow-color: rgba(0, 0, 0, 0.3);
        --tag-bg: rgba(255, 255, 255, 0.08);
    }
}

/* ========== Reset & Base ========== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-hover);
}

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

/* ========== Layout ========== */
.container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== Header ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
}

.header-inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-brand .brand-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 18px;
}

.site-stats {
    font-size: 12px;
    color: var(--text-secondary);
    padding: 4px 10px;
    background: var(--tag-bg);
    border-radius: 4px;
}

.brand-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    object-fit: contain;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 16px;
}

.site-nav a {
    color: var(--text-secondary);
    font-size: 14px;
    transition: color 0.2s;
}

.site-nav a:hover {
    color: var(--accent-color);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.theme-toggle:hover {
    background: var(--bg-hover);
    color: var(--accent-color);
}

.icon-moon { display: none; }
.icon-sun { display: block; }

body.dark-theme .icon-moon { display: block; }
body.dark-theme .icon-sun { display: none; }

@media (prefers-color-scheme: dark) {
    body:not(.light-theme) .icon-moon { display: block; }
    body:not(.light-theme) .icon-sun { display: none; }
}

/* ========== Main Content ========== */
.main-content {
    padding: 24px 0 60px;
    min-height: calc(100vh - 180px);
}

/* ========== Card Item ========== */
.card-item {
    background: var(--bg-secondary);
    border-radius: var(--card-radius);
    box-shadow: 0 1px 3px var(--shadow-color);
    transition: all 0.3s ease;
    overflow: hidden;
}

.card-item:hover {
    box-shadow: 0 4px 12px var(--shadow-color);
}

/* ========== Profile Card ========== */
.profile-card {
    margin-bottom: 24px;
}

.profile-inner {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.profile-avatar {
    flex-shrink: 0;
}

.profile-avatar img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--bg-hover);
}

.profile-info {
    flex: 1;
    min-width: 0;
}

.profile-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.profile-bio {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.profile-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.6;
}

.profile-stats {
    display: flex;
    gap: 24px;
}

.stat-item {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.stat-num {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-color);
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
}

/* ========== Tag Filter ========== */
.tag-filter {
    margin-bottom: 24px;
}

.tag-now {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--tag-bg);
    color: var(--text-secondary);
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.6;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tag-now:hover {
    background: var(--bg-hover);
    color: var(--accent-color);
    text-decoration: line-through;
}

.tag-now .tag-close {
    opacity: 0.6;
    transition: opacity 0.2s;
}

.tag-now:hover .tag-close {
    opacity: 1;
}

/* ========== Memos Timeline ========== */
.bbs-timeline {
    position: relative;
}

.memo-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* ========== Memo Item ========== */
.memo-item {
    position: relative;
    background: var(--bg-secondary);
    border-radius: var(--card-radius);
    box-shadow: 0 1px 3px var(--shadow-color);
    transition: all 0.3s ease;
    overflow: hidden;
}

.memo-item:hover {
    box-shadow: 0 4px 12px var(--shadow-color);
    transform: translateY(-2px);
}

/* 右上角操作按钮 */
.memo-actions {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.memo-actions a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: var(--text-muted);
    opacity: 0.4;
    transition: all 0.2s ease;
    z-index: 1;
}

.memo-actions a:hover {
    opacity: 1;
    color: var(--accent-color);
    background: var(--tag-bg);
}

.memo-item:hover .memo-actions a {
    opacity: 0.7;
}

/* 评论按钮 */
.memo-comment-btn {
    position: relative;
}

.memo-comment-btn .comment-count {
    position: absolute;
    top: -2px;
    right: -2px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    background: var(--accent-color);
    color: #fff;
    font-size: 10px;
    font-weight: 600;
    line-height: 16px;
    text-align: center;
    border-radius: 8px;
}

/* 隐藏空的或为0的评论数 */
.memo-comment-btn .comment-count:empty,
.memo-comment-btn .comment-count.hide-zero {
    display: none;
}

/* 评论容器 */
.memo-comment {
    margin-top: 12px;
    padding: 16px;
    background: var(--bg-hover);
    border-radius: 8px;
}

.memo-comment .artalk {
    --at-color-main: var(--accent-color);
    --at-color-bg: transparent;
}

.memo-header {
    display: flex;
    align-items: center;
    padding: 16px 16px 0;
    gap: 12px;
}

.memo-avatar {
    flex-shrink: 0;
}

.memo-avatar img {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
}

.memo-meta {
    flex: 1;
    min-width: 0;
}

.memo-author {
    display: flex;
    align-items: center;
    gap: 6px;
}

.memo-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 15px;
}

.memo-verify {
    width: 16px;
    height: 16px;
    color: #1d9bf0;
}

.memo-username {
    font-size: 13px;
    color: var(--text-muted);
}

.memo-time {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}

.memo-time a {
    color: var(--text-muted);
}

.memo-time a:hover {
    color: var(--accent-color);
}

.memo-content {
    padding: 12px 16px 16px;
    font-size: 15px;
    line-height: 1.75;
    color: var(--text-primary);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.memo-content p {
    margin: 0 0 12px;
}

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

.memo-content a {
    color: var(--accent-color);
}

.memo-content a:hover {
    text-decoration: underline;
}

/* Tags */
.memo-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.memo-content .tag-span,
.memo-tags .tag-span {
    display: inline-block;
    padding: 2px 8px;
    background: var(--tag-bg);
    color: var(--text-secondary);
    border-radius: 4px;
    font-size: 13px;
    line-height: 1.8;
    transition: all 0.2s;
    cursor: pointer;
}

.memo-content .tag-span:hover,
.memo-tags .tag-span:hover {
    background: var(--bg-hover);
    color: var(--accent-color);
}

.memo-content .tag-span a,
.memo-tags .tag-span a {
    color: inherit;
    text-decoration: none;
}

.memo-tags .tag-span:hover a {
    color: var(--accent-color);
}

/* Code blocks */
.memo-content pre {
    background: var(--bg-hover);
    border-radius: 8px;
    padding: 14px 16px;
    overflow-x: auto;
    margin: 12px 0;
    font-size: 13px;
}

.memo-content code {
    font-family: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
    font-size: 13px;
    background: var(--tag-bg);
    padding: 2px 6px;
    border-radius: 4px;
}

.memo-content pre code {
    background: transparent;
    padding: 0;
}

/* Blockquote */
.memo-content blockquote {
    margin: 12px 0;
    padding: 12px 16px;
    background: var(--tag-bg);
    border-left: 3px solid var(--accent-color);
    border-radius: 0 8px 8px 0;
    color: var(--text-secondary);
}

/* Lists */
.memo-content ul, .memo-content ol {
    padding-left: 24px;
    margin: 8px 0;
}

.memo-content li {
    margin: 4px 0;
}

/* ========== Resource Wrapper (Images) ========== */
.resource-wrapper {
    margin-top: 12px;
}

.images-wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    border-radius: 12px;
    overflow: hidden;
}

.images-wrapper.single-image {
    grid-template-columns: 1fr;
}

.images-wrapper.two-images {
    grid-template-columns: repeat(2, 1fr);
}

.resimg {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    background: var(--bg-hover);
    cursor: pointer;
}

.resimg::after {
    content: '';
    display: block;
    padding-top: 100%;
}

.resimg img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.resimg:hover img {
    transform: scale(1.05);
}

/* ========== Video Wrapper ========== */
.video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    margin: 12px 0;
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-hover);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* ========== Spotify Wrapper ========== */
.spotify-wrapper {
    margin: 12px 0;
    border-radius: 12px;
    overflow: hidden;
}

.spotify-wrapper iframe {
    width: 100%;
    height: 152px;
}

/* ========== Douban Card ========== */
.post-preview {
    display: flex;
    margin: 12px 0;
    background: var(--bg-hover);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.post-preview:hover {
    box-shadow: 0 4px 12px var(--shadow-color);
}

.post-preview--meta {
    flex: 1;
    padding: 16px;
    min-width: 0;
}

.post-preview--title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.post-preview--title a {
    color: inherit;
}

.post-preview--date {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.post-preview--excerpt {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
}

.post-preview--image {
    width: 120px;
    height: auto;
    object-fit: cover;
    flex-shrink: 0;
}

/* Rating */
.rating {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.rating-star {
    display: inline-block;
    width: 75px;
    height: 15px;
    background-repeat: no-repeat;
    background-image: url(data:image/png;base64,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);
}

.rating-average {
    font-size: 13px;
    color: var(--text-muted);
}

/* ========== Load More Button ========== */
.load-btn {
    display: block;
    width: 100%;
    padding: 14px 24px;
    margin: 24px 0;
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--card-radius);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px var(--shadow-color);
}

.load-btn:hover {
    background: var(--bg-hover);
    color: var(--accent-color);
    box-shadow: 0 4px 12px var(--shadow-color);
}

/* ========== Footer ========== */
.site-footer {
    padding: 24px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}

.footer-inner p {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-inner a {
    color: var(--text-secondary);
}

.footer-inner a:hover {
    color: var(--accent-color);
}

.footer-beian {
    margin-top: 8px;
    font-size: 12px !important;
}

.footer-beian a {
    margin: 0 4px;
}

/* ========== Back to Top ========== */
.backtop {
    position: fixed;
    right: 24px;
    bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--bg-secondary);
    border: none;
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    box-shadow: 0 2px 8px var(--shadow-color);
    transition: all 0.3s ease;
    z-index: 99;
    opacity: 0.8;
}

.backtop:hover {
    opacity: 1;
    color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px var(--shadow-color);
}

/* ========== Loading Animation ========== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========== APlayer Dark Mode ========== */
body.dark-theme .aplayer,
body:not(.light-theme) .aplayer {
    background: var(--bg-secondary);
}

body.dark-theme .aplayer .aplayer-info,
body:not(.light-theme) .aplayer .aplayer-info {
    border-top-color: var(--border-color);
}

body.dark-theme .aplayer .aplayer-info .aplayer-music .aplayer-title,
body:not(.light-theme) .aplayer .aplayer-info .aplayer-music .aplayer-title {
    color: var(--text-primary);
}

body.dark-theme .aplayer .aplayer-info .aplayer-music .aplayer-author,
body:not(.light-theme) .aplayer .aplayer-info .aplayer-music .aplayer-author {
    color: var(--text-secondary);
}

/* ========== Responsive ========== */
@media (max-width: 640px) {
    .header-inner {
        padding: 10px 12px;
    }

    .site-nav {
        gap: 12px;
    }

    .site-nav > a:not(:last-of-type) {
        display: none;
    }

    .profile-inner {
        padding: 20px 16px;
        flex-direction: column;
        text-align: center;
    }

    .profile-avatar img {
        width: 72px;
        height: 72px;
    }

    .profile-name {
        font-size: 20px;
    }

    .profile-stats {
        justify-content: center;
    }

    .memo-header {
        padding: 12px 12px 0;
    }

    .memo-content {
        padding: 10px 12px 14px;
    }

    .memo-avatar img {
        width: 40px;
        height: 40px;
    }

    .images-wrapper {
        grid-template-columns: repeat(2, 1fr);
    }

    .post-preview {
        flex-direction: column;
    }

    .post-preview--image {
        width: 100%;
        height: 160px;
        order: -1;
    }

    .backtop {
        right: 16px;
        bottom: 16px;
        width: 40px;
        height: 40px;
    }
}

/* ========== Skeleton Loading ========== */
.skeleton {
    background: linear-gradient(90deg, var(--bg-hover) 25%, var(--tag-bg) 50%, var(--bg-hover) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: 4px;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ========== No Results ========== */
.no-results {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
    font-size: 15px;
    background: var(--bg-secondary);
    border-radius: var(--card-radius);
}

/* ========== Hidden Utility ========== */
.hidden {
    display: none !important;
}