/* =========================================================
 *  Mobile Styles — 手机端专用
 * ======================================================= */

:root {
    --glass-bg: rgba(255, 255, 255, 0.72);
    --glass-blur: blur(24px);
    --glass-saturation: saturate(180%);
    --glass-filter: var(--glass-blur) var(--glass-saturation);
    --glass-border: 1px solid rgba(255, 255, 255, 0.85);
    --glass-shadow:
        0 8px 32px rgba(0, 0, 0, 0.08),
        inset 0 0 0 1px rgba(255, 255, 255, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        inset 0 -1px 0 rgba(255, 255, 255, 0.3);
    --glass-shadow-hover:
        0 12px 40px rgba(0, 0, 0, 0.1),
        inset 0 0 0 1px rgba(255, 255, 255, 0.6),
        inset 0 1px 0 rgba(255, 255, 255, 0.95),
        inset 0 -1px 0 rgba(255, 255, 255, 0.3);
    --glass-radius: 16px;
    --glass-radius-sm: 12px;

    --accent: #007aff;
    --accent-hover: #005ecb;
    --accent-light: rgba(0, 122, 255, 0.08);

    --text-primary: #1a1a1a;
    --text-secondary: #555555;
    --text-tertiary: #888888;

    /* 页面转场 */
    --page-transition-duration: 320ms;
    --page-transition-bg: rgba(255, 255, 255, 0.92);
}

/* ============================================================
   页面转场过渡动画
   ============================================================ */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
    pointer-events: none;
    opacity: 0;
    background: var(--page-transition-bg);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    backdrop-filter: blur(20px) saturate(180%);
    transition: opacity var(--page-transition-duration) cubic-bezier(0.4, 0, 0.2, 1);
}

.page-transition-active {
    opacity: 1;
    pointer-events: auto;
}

body.page-fade-in {
    animation: pageFadeIn var(--page-transition-duration) ease-out;
}

body.page-fade-out {
    animation: pageFadeOut var(--page-transition-duration) ease-in;
    pointer-events: none;
}

@keyframes pageFadeIn {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pageFadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0.6;
        transform: translateY(-4px);
    }
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue",
                 "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: #f2f2f7;
    background-image:
        radial-gradient(ellipse at 10% 15%, rgba(120, 180, 255, 0.35) 0%, transparent 50%),
        radial-gradient(ellipse at 90% 25%, rgba(255, 140, 180, 0.3) 0%, transparent 45%),
        radial-gradient(ellipse at 30% 75%, rgba(180, 130, 255, 0.25) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 85%, rgba(100, 200, 255, 0.25) 0%, transparent 45%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    padding-bottom: env(safe-area-inset-bottom);
}

/* ---------- Layout ---------- */
.page-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ============================================================
   HEADER — 移动端导航
   ============================================================ */
.site-header {
    background: rgba(255, 255, 255, 0.8);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    backdrop-filter: blur(20px) saturate(180%);
    height: 48px;
    position: sticky;
    top: 0;
    z-index: 1030;
    border-bottom: 1px solid rgba(255, 255, 255, 0.6);
}

.site-header .container {
    max-width: 100%;
    padding: 0 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.site-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2px;
}

.nav-links a {
    display: inline-block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 8px;
    transition: all 0.2s;
}

.nav-links a:hover {
    color: var(--accent);
    background: rgba(0, 122, 255, 0.06);
}

/* ============================================================
   移动端首页布局 — 单列
   ============================================================ */
.home-layout {
    display: flex;
    flex-direction: column;
    padding: 12px 12px 32px;
    gap: 12px;
}

/* ---------- 移动端侧边栏 ---------- */
.home-sidebar {
    width: 100%;
}

.home-sidebar .sidebar-card {
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    border-radius: var(--glass-radius);
    padding: 16px;
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
    margin-bottom: 12px;
}

.sidebar-avatar {
    text-align: center;
    margin-bottom: 12px;
}

.sidebar-avatar img {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.sidebar-bio { text-align: center; }

.sidebar-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.sidebar-desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin: 0;
}

.sidebar-card-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

.sidebar-link,
.category-list .sidebar-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.2s;
}

.sidebar-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.6);
}

.category-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.category-toggle {
    width: 100%;
    padding: 8px 10px;
    font-size: 12px;
    color: var(--accent);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
}

.sidebar-links {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* ============================================================
   移动端文章列表
   ============================================================ */
.post-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.post-item {
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    border-radius: var(--glass-radius);
    padding: 14px;
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.post-meta {
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.post-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 6px;
    line-height: 1.4;
}

.post-title a {
    color: var(--text-primary);
    text-decoration: none;
}

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

.post-category {
    display: inline-block;
    font-size: 11px;
    font-weight: 500;
    margin-left: 6px;
}

.post-category a {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(0, 122, 255, 0.08);
    color: var(--accent);
    border-radius: 8px;
    text-decoration: none;
}

.post-excerpt {
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-size: 12px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.tag {
    display: inline-block;
    background: rgba(255, 255, 255, 0.5);
    color: var(--text-secondary);
    padding: 2px 8px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    font-size: 11px;
    text-decoration: none;
}

.home-main {
    width: 100%;
}

/* ============================================================
   分页
   ============================================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4px;
    margin-top: 14px;
    padding: 10px 0;
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    height: 30px;
    padding: 0 6px;
    font-size: 12px;
    color: var(--accent);
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    border: var(--glass-border);
    border-radius: 8px;
    text-decoration: none;
    cursor: pointer;
}

.pagination-btn.active {
    background: var(--accent-light);
    border-color: rgba(0, 122, 255, 0.3);
    color: var(--accent);
    font-weight: 600;
}

.pagination-btn.disabled {
    color: var(--text-tertiary);
    opacity: 0.5;
}

/* ============================================================
   文章页布局
   ============================================================ */
.article-layout {
    display: flex;
    flex-direction: column;
    padding: 12px 12px 32px;
    gap: 12px;
}

.article-sidebar {
    width: 100%;
}

.toc-nav {
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    border-radius: var(--glass-radius);
    padding: 12px 0;
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.toc-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    padding: 0 12px 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
    margin-bottom: 4px;
}

.toc-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.toc-item a {
    display: block;
    padding: 6px 12px;
    font-size: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: all 0.2s;
}

.toc-item.active a {
    color: var(--accent);
    border-left-color: var(--accent);
    background: var(--accent-light);
}

.toc-level-2 a { padding-left: 20px; }
.toc-level-3 a { padding-left: 32px; font-size: 11px; }

.article-main {
    width: 100%;
}

/* ---------- 文章头部 ---------- */
.post-header {
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    border-radius: var(--glass-radius);
    padding: 14px;
    margin-bottom: 12px;
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.post-header .post-meta {
    margin-bottom: 6px;
}

.post-header h1 {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.35;
    color: var(--text-primary);
}

/* ---------- 文章正文 ---------- */
.post-content {
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    border-radius: var(--glass-radius);
    padding: 14px;
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding-bottom: 120px;
}

.markdown-body {
    background: transparent !important;
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4 {
    scroll-margin-top: 60px;
}

.markdown-body p {
    margin-top: 4px !important;
    margin-bottom: 8px !important;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
    margin-top: 14px !important;
}

.markdown-body ul,
.markdown-body ol {
    margin-bottom: 8px !important;
    margin-top: 0 !important;
}

.markdown-body blockquote {
    margin: 8px 0 !important;
}

.markdown-body table {
    margin: 10px 0 !important;
}

.markdown-body hr {
    margin: 16px 0 !important;
}

.markdown-body code {
    padding: 0.2em 0.4em !important;
    font-size: 80% !important;
    background-color: rgba(175, 184, 193, 0.2) !important;
    border-radius: 6px !important;
}

/* ---------- 代码块 ---------- */
.post-content pre,
.post-content .highlight pre {
    position: relative !important;
    margin: 12px 0 !important;
    padding: 12px !important;
    font-size: 12px !important;
    line-height: 1.5 !important;
    overflow-x: auto;
    border-radius: 8px !important;
    background: #f6f8fa !important;
    border: 1px solid #d0d7de !important;
    -webkit-overflow-scrolling: touch;
}

.post-content pre code {
    padding: 0 !important;
    margin: 0 !important;
    font-size: inherit !important;
    background: none !important;
    display: inline !important;
    white-space: pre !important;
    color: inherit !important;
}

/* 复制按钮 — 浮在代码块右上角内侧 */
.post-content pre .code-header {
    position: absolute;
    top: 6px;
    right: 6px;
    display: flex;
    align-items: center;
    padding: 0;
    z-index: 10;
    opacity: 0;
    transform: translateY(-2px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    pointer-events: none;
}

.post-content pre:hover .code-header {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.post-content pre .code-copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    min-width: 28px;
    height: 28px;
    padding: 0 6px;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.85);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    color: #57606a;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    line-height: 1;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.post-content pre .code-copy-btn:hover {
    background: rgba(255, 255, 255, 0.95);
}

.post-content pre .code-copy-btn svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
    flex-shrink: 0;
}

.post-content pre .code-copy-btn .copied-text {
    font-size: 12px;
}

.post-content pre .code-copy-btn.copied {
    color: #1a7f37;
    border-color: #1a7f37;
    background: rgba(218, 251, 225, 0.95);
}

/* ---------- 分享区域 ---------- */
.share-section {
    margin-top: 16px;
    padding: 14px;
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    border-radius: var(--glass-radius);
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.share-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 8px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.5);
    color: var(--text-secondary);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
}

.share-btn span {
    display: none;
}

.share-btn svg {
    flex-shrink: 0;
}

.copy-link-btn:hover {
    background: rgba(0, 122, 255, 0.08);
    border-color: rgba(0, 122, 255, 0.2);
    color: var(--accent);
}

.copy-link-btn.copied {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.3);
    color: #1a7f37;
}

.twitter-btn:hover {
    background: rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 0, 0, 0.2);
    color: #000000;
}

.telegram-btn:hover {
    background: rgba(42, 171, 238, 0.08);
    border-color: rgba(42, 171, 238, 0.2);
    color: #2AABEE;
}

.email-btn:hover {
    background: rgba(234, 67, 53, 0.08);
    border-color: rgba(234, 67, 53, 0.2);
    color: #ea4335;
}

/* ---------- 翻页导航 ---------- */
.post-nav {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.post-nav a,
.post-nav span {
    display: block;
    padding: 10px 12px;
    font-size: 13px;
    border-radius: var(--glass-radius-sm);
    text-align: center;
    text-decoration: none;
    border: var(--glass-border);
    color: var(--accent);
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    box-shadow: var(--glass-shadow);
}

/* ============================================================
   归档/分类页
   ============================================================ */
.archive-header,
.category-header {
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    border-radius: var(--glass-radius);
    padding: 14px;
    margin-bottom: 12px;
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
    text-align: center;
}

.archive-header h1,
.category-header h1 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 4px;
}

.category-count {
    font-size: 12px;
    color: var(--text-secondary);
    margin: 0;
}

.archive-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.archive-year {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-top: 12px;
    margin-bottom: 4px;
    padding: 0 10px;
}

.archive-item {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 10px 12px;
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    border-radius: var(--glass-radius-sm);
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
    gap: 10px;
}

.archive-item a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 13px;
    flex: 1;
}

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

.archive-date {
    color: var(--text-tertiary);
    font-size: 11px;
    white-space: nowrap;
}

/* ============================================================
   搜索页
   ============================================================ */
.search-page-wrapper {
    flex: 1;
    padding: 40px 12px 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.search-header {
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    border-radius: var(--glass-radius);
    padding: 16px;
    margin-bottom: 12px;
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
    text-align: center;
    width: 100%;
}

.search-header h1 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.search-desc {
    color: var(--text-secondary);
    font-size: 12px;
    margin: 0;
}

.search-container {
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    border-radius: var(--glass-radius);
    padding: 16px;
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
    width: 100%;
}

.search-box {
    position: relative;
    margin-bottom: 14px;
}

.search-box .search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
    width: 14px;
    height: 14px;
}

.search-input {
    width: 100%;
    padding: 10px 32px 10px 32px;
    font-size: 13px;
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--glass-radius-sm);
    background: rgba(255, 255, 255, 0.6);
    color: var(--text-primary);
    outline: none;
    transition: all 0.2s;
    text-align: center;
}

.search-input:focus {
    border-color: rgba(0, 122, 255, 0.4);
    background: rgba(255, 255, 255, 0.75);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.search-input::placeholder {
    color: var(--text-tertiary);
}

.search-clear-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 16px;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}

.search-hint {
    text-align: center;
    color: var(--text-tertiary);
    padding: 30px 0;
    font-size: 12px;
}

.search-results {
    min-height: 120px;
}

.search-result-item {
    display: block;
    padding: 12px;
    margin-bottom: 6px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--glass-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.6);
    text-decoration: none;
}

.search-result-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.search-result-meta {
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.search-result-excerpt {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.search-result-excerpt mark,
.search-result-title mark {
    background: rgba(255, 220, 100, 0.5);
    color: inherit;
    padding: 1px 2px;
    border-radius: 2px;
}

.search-no-results {
    text-align: center;
    padding: 30px 0;
    color: var(--text-tertiary);
    font-size: 12px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
    background: rgba(255, 255, 255, 0.5);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    border-top: 1px solid rgba(255, 255, 255, 0.6);
    color: var(--text-tertiary);
    padding: 14px 12px;
    margin-top: 0;
}

.site-footer .container {
    text-align: center;
    font-size: 11px;
}

.site-footer a {
    color: var(--text-secondary);
    text-decoration: none;
}

/* ============================================================
   隐藏不需要的元素
   ============================================================ */
.home-layout .home-sidebar .sidebar-card:nth-child(n+3) {
    /* 手机端简化侧边栏，只显示头像卡片 */
    display: none;
}

/* 如果需要在手机端显示更多侧边栏内容，可以手动展开 */
.home-layout .home-sidebar.expanded .sidebar-card {
    display: block;
}