/* ============================================================
 * PHP Blog - 全局样式（现代极简技术博客风格）
 * 配色：主色 #2563eb / 强调 #f97316 / 中性 #f8fafc #1e293b #64748b
 * 风格参考：掘金 / Medium
 * ========================================================== */

/* ----------------------------------------------------------
 * 0. CSS 自定义属性（设计令牌）
 * ---------------------------------------------------------- */
:root {
    /* 主色 */
    --color-primary:       #2563eb;
    --color-primary-dark:  #1d4ed8;
    --color-primary-light: #eff6ff;

    /* 强调色 */
    --color-accent:        #f97316;
    --color-accent-dark:   #ea580c;
    --color-accent-light:  #fff7ed;

    /* 中性色 */
    --color-bg:            #f8fafc;
    --color-surface:       #ffffff;
    --color-text:          #1e293b;
    --color-text-secondary:#64748b;
    --color-text-muted:    #94a3b8;
    --color-border:        #e2e8f0;
    --color-border-light:  #f1f5f9;

    /* 功能色 */
    --color-success:       #059669;
    --color-success-bg:    #ecfdf5;
    --color-danger:        #dc2626;
    --color-danger-bg:     #fef2f2;
    --color-warning:       #d97706;
    --color-warning-bg:    #fffbeb;
    --color-info:          #2563eb;
    --color-info-bg:       #eff6ff;

    /* 圆角 */
    --radius-sm:   6px;
    --radius-md:   8px;
    --radius-lg:   12px;
    --radius-xl:   16px;
    --radius-full: 999px;

    /* 阴影 */
    --shadow-sm:   0 1px 3px rgba(0,0,0,0.04);
    --shadow-md:   0 2px 12px rgba(0,0,0,0.04);
    --shadow-lg:   0 8px 24px rgba(0,0,0,0.08);
    --shadow-xl:   0 12px 32px rgba(0,0,0,0.10);

    /* 过渡 */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* 排版 */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
}

/* ----------------------------------------------------------
 * 1. 全局重置与基础排版
 * ---------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    letter-spacing: 0.3px;
    line-height: 1.8;
}

/* 链接 */
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}
a:hover {
    color: var(--color-primary-dark);
}

/* 图片 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 标题层级 */
h1, h2, h3, h4 {
    margin: 0 0 0.5rem 0;
    color: var(--color-text);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.2px;
}
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

/* 段落 */
p {
    margin: 0 0 0.75rem;
    line-height: 1.8;
}

/* 表单元素继承字体 */
button, input, textarea {
    font: inherit;
    letter-spacing: inherit;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ----------------------------------------------------------
 * 2. Header / 导航栏（固定 + 毛玻璃）
 * ---------------------------------------------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.82);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

/* 滚动后加深阴影 */
.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 16px;
}

/* Logo */
.site-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-text);
    text-decoration: none;
    flex-shrink: 0;
}
.site-logo:hover {
    color: var(--color-primary);
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 700;
    transition: transform var(--transition-base);
}
.site-logo:hover .logo-mark {
    transform: scale(1.05);
}

/* 导航菜单 */
.site-nav {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    justify-content: flex-end;
}

.site-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 4px;
}

.site-nav ul li a {
    display: inline-block;
    padding: 8px 14px;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.95rem;
    transition: background var(--transition-fast), color var(--transition-fast);
    position: relative;
}
.site-nav ul li a:hover,
.site-nav ul li a.active {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* 导航右侧操作区 */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 用户菜单 */
.nav-user {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    user-select: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 10px;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}
.nav-user:hover {
    background: var(--color-border-light);
}

.nav-user-dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    z-index: 200;
    overflow: hidden;
    animation: dropdownFadeIn 0.15s ease;
}
@keyframes dropdownFadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

.dropdown-menu a {
    display: block;
    padding: 10px 16px;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.dropdown-menu a:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.nav-user-dropdown.open .dropdown-menu {
    display: block;
}

/* 导航搜索 */
.nav-search {
    display: flex;
    gap: 6px;
    margin-left: 8px;
}

.nav-search input {
    width: 200px;
    padding: 7px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.88rem;
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), width var(--transition-base);
}
.nav-search input::placeholder {
    color: var(--color-text-muted);
}
.nav-search input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    width: 240px;
}

/* 移动端汉堡按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 24px;
    background: transparent;
    border: none;
    padding: 3px 0;
    cursor: pointer;
}
.nav-toggle span {
    display: block;
    height: 2px;
    background: var(--color-text-secondary);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-fast);
}

/* ----------------------------------------------------------
 * 3. 按钮系统
 * ---------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    font-weight: 500;
    font-size: 0.9rem;
    line-height: 1.4;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
}
.btn:active {
    transform: scale(0.97);
}

/* 小号按钮 */
.btn-sm {
    padding: 6px 14px;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
}

/* 主按钮 */
.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #fff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

/* 幽灵按钮 */
.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border-color: var(--color-border);
}
.btn-ghost:hover {
    background: var(--color-bg);
    color: var(--color-text);
    border-color: var(--color-text-muted);
}

/* 危险链接按钮 */
.btn-link-danger {
    background: none;
    border: none;
    color: var(--color-danger);
    cursor: pointer;
    font-size: 0.85rem;
    padding: 0;
    transition: color var(--transition-fast);
}
.btn-link-danger:hover {
    color: #991b1b;
    text-decoration: underline;
}

/* 块级按钮 */
.btn-block {
    display: flex;
    width: 100%;
}

/* ----------------------------------------------------------
 * 4. 主内容区
 * ---------------------------------------------------------- */
/* 为固定导航留出空间 */
.site-main {
    padding: 88px 0 48px;
}

.layout-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 28px;
    align-items: start;
}

/* 区块标题 */
.section-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
    color: var(--color-text);
}

/* 列表头部 */
.list-header {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}
.list-meta {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* ----------------------------------------------------------
 * 5. Flash 消息提示
 * ---------------------------------------------------------- */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    border: 1px solid transparent;
    font-size: 0.9rem;
    line-height: 1.6;
    display: flex;
    align-items: center;
    gap: 8px;
}
.alert-success {
    background: var(--color-success-bg);
    border-color: #a7f3d0;
    color: #065f46;
}
.alert-danger,
.alert-error {
    background: var(--color-danger-bg);
    border-color: #fecaca;
    color: #991b1b;
}
.alert-warning {
    background: var(--color-warning-bg);
    border-color: #fde68a;
    color: #92400e;
}
.alert-info {
    background: var(--color-info-bg);
    border-color: #bfdbfe;
    color: #1e40af;
}

/* ----------------------------------------------------------
 * 6. Banner 轮播
 * ---------------------------------------------------------- */
.banners {
    margin-bottom: 24px;
}

.banner-slider {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 8px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.banner-slider::-webkit-scrollbar {
    display: none;
}

.banner-slide {
    flex: 0 0 100%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-primary), #3b82f6);
    min-height: 200px;
    color: #fff;
    scroll-snap-align: start;
    position: relative;
}
.banner-slide a {
    color: inherit;
}
.banner-slide img {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.banner-placeholder {
    padding: 48px 32px;
    color: #fff;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}
.banner-placeholder h2 {
    color: #fff;
    font-size: 1.6rem;
    margin-bottom: 8px;
}
.banner-placeholder p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.95rem;
}

/* ----------------------------------------------------------
 * 7. 公告栏
 * ---------------------------------------------------------- */
.announcement {
    background: var(--color-accent-light);
    border: 1px solid #fed7aa;
    color: #9a3412;
    border-radius: var(--radius-lg);
    padding: 14px 18px;
    margin-bottom: 24px;
    font-size: 0.9rem;
    line-height: 1.6;
    display: flex;
    align-items: center;
    gap: 10px;
}

.announcement-label {
    display: inline-flex;
    align-items: center;
    background: var(--color-accent);
    color: #fff;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

/* 公告卡片（新版） */
.announcement-card {
    margin-bottom: 24px;
}

.announcement-card-inner {
    background: linear-gradient(135deg, var(--color-accent-light), #fffbeb);
    border: 1px solid #fed7aa;
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}
.announcement-card-inner:hover {
    box-shadow: var(--shadow-md);
}

.announcement-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--color-accent);
    color: #fff;
    flex-shrink: 0;
}

.announcement-body {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.announcement-text {
    color: #9a3412;
    font-size: 0.9rem;
    line-height: 1.6;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Banner 遮罩与内容 */
.banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.55) 100%);
    display: flex;
    align-items: flex-end;
    padding: 28px 32px;
}

.banner-content {
    color: #fff;
    max-width: 600px;
}

.banner-title {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 6px;
    text-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.banner-subtitle {
    color: rgba(255,255,255,0.9);
    font-size: 0.92rem;
    margin: 0;
    text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.banner-placeholder-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

/* 区块标题头部 */
.section-header {
    margin-bottom: 4px;
}

/* 文章卡片头部（分类标签行） */
.post-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.post-category-tag {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 500;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.post-category-tag:hover {
    background: #dbeafe;
    color: var(--color-primary-dark);
}

/* 作者头像首字母 */
.post-author-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-size: 0.68rem;
    font-weight: 600;
    margin-right: 4px;
    flex-shrink: 0;
}

.post-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.post-meta-divider {
    color: var(--color-border);
}

/* 文章统计数据 */
.post-stats {
    display: inline-flex;
    align-items: center;
    gap: 14px;
}

.post-stat-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    transition: color var(--transition-fast);
}
.post-stat-item:hover {
    color: var(--color-text-secondary);
}
.post-stat-item svg {
    flex-shrink: 0;
    opacity: 0.7;
}

/* 阅读全文按钮 */
.btn-read-more {
    margin-left: auto;
    padding: 6px 16px;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    gap: 4px;
    transition: all var(--transition-base);
}
.btn-read-more:hover {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}
.btn-read-more svg {
    transition: transform var(--transition-fast);
}
.btn-read-more:hover svg {
    transform: translateX(2px);
}

/* 空状态增强 */
.empty-state {
    position: relative;
}

.empty-state::before,
.empty-state::after {
    display: none;
}

.empty-state-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    background: var(--color-border-light);
    border-radius: 50%;
    color: var(--color-text-muted);
}

.empty-state-text {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 4px;
}

.empty-state-hint {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* 侧边栏 - 带序号列表 */
.widget-list-numbered {
    counter-reset: none;
}

.widget-list-numbered li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.widget-list-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background: var(--color-border-light);
    color: var(--color-text-muted);
    font-size: 0.78rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

.widget-list-number-hot {
    background: var(--color-accent);
    color: #fff;
}

.widget-list-item-body {
    flex: 1;
    min-width: 0;
}

.widget-list-item-body a {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text);
    transition: color var(--transition-fast);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.widget-list-item-body a:hover {
    color: var(--color-primary);
}

/* 侧边栏标题图标 */
.widget-title {
    display: flex;
    align-items: center;
    gap: 8px;
}

.widget-title svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

/* 评论头像 */
.widget-comment-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.widget-comment-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-size: 0.7rem;
    font-weight: 600;
    flex-shrink: 0;
}

/* 友情链接图标 */
.widget-list-links li a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.friend-link-icon {
    display: inline-flex;
    align-items: center;
    color: var(--color-text-muted);
    flex-shrink: 0;
    transition: color var(--transition-fast);
}

.widget-list-links li a:hover .friend-link-icon {
    color: var(--color-primary);
}

/* ----------------------------------------------------------
 * 8. 文章列表 / 卡片
 * ---------------------------------------------------------- */
.post-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.post-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    box-shadow: var(--shadow-sm);
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}
.post-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* 紧凑型卡片（带封面缩略图） */
.post-card-compact {
    grid-template-columns: 200px 1fr;
    align-items: stretch;
    gap: 16px;
}

/* 封面图 */
.post-cover {
    border-radius: var(--radius-md);
    overflow: hidden;
    max-height: 240px;
}
.post-cover img,
.post-cover-sm img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}
.post-card:hover .post-cover img,
.post-card:hover .post-cover-sm img {
    transform: scale(1.03);
}

.post-cover-sm {
    border-radius: var(--radius-md);
    overflow: hidden;
    min-height: 130px;
}

/* 文章标题 */
.post-title {
    font-size: 1.25rem;
    margin-bottom: 8px;
    font-weight: 600;
    line-height: 1.4;
}
.post-title a {
    color: var(--color-text);
    transition: color var(--transition-fast);
}
.post-title a:hover {
    color: var(--color-primary);
}

/* 标签徽章 */
.tag-badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.72rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    background: #fef3c7;
    color: #92400e;
    margin-right: 8px;
    vertical-align: middle;
}
.tag-top {
    background: #fee2e2;
    color: #991b1b;
}

/* 文章元信息 */
.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    margin-bottom: 10px;
}

/* 文章摘要 */
.post-summary {
    color: var(--color-text-secondary);
    font-size: 0.92rem;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 文章底部 */
.post-footer {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--color-border-light);
}

.read-more {
    margin-left: auto;
    color: var(--color-accent);
    font-weight: 500;
    font-size: 0.88rem;
    transition: color var(--transition-fast);
}
.read-more:hover {
    color: var(--color-accent-dark);
}

/* ----------------------------------------------------------
 * 9. 侧边栏
 * ---------------------------------------------------------- */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 88px;
}

.widget {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}
.widget:hover {
    box-shadow: var(--shadow-md);
}

.widget-title {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-text);
}

.widget-list {
    list-style: none;
    margin: 0;
    padding: 0;
}
.widget-list li {
    padding: 10px 0;
    border-bottom: 1px dashed var(--color-border-light);
    font-size: 0.9rem;
    transition: background var(--transition-fast);
}
.widget-list li:last-child {
    border-bottom: none;
}
.widget-list li a {
    color: var(--color-text);
    transition: color var(--transition-fast);
}
.widget-list li a:hover {
    color: var(--color-primary);
}
.widget-list li p {
    margin: 4px 0;
    color: var(--color-text-secondary);
    font-size: 0.85rem;
}

.widget-meta {
    display: block;
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

.small-link {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--color-primary);
    margin-top: 4px;
    transition: color var(--transition-fast);
}
.small-link:hover {
    color: var(--color-primary-dark);
}

/* 侧边栏搜索 */
.widget-search {
    display: flex;
    gap: 8px;
}
.widget-search input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.widget-search input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* 标签云 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--color-primary-light);
    border-radius: var(--radius-full);
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 500;
    transition: background var(--transition-fast), transform var(--transition-fast);
}
.tag-chip:hover {
    background: #dbeafe;
    transform: translateY(-1px);
}

.tag-chip-sm {
    font-size: 0.8rem;
    padding: 4px 10px;
}

.tag-count {
    background: var(--color-surface);
    color: var(--color-text-muted);
    padding: 1px 7px;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 500;
}

/* ----------------------------------------------------------
 * 10. 分页
 * ---------------------------------------------------------- */
.pagination {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 28px;
    justify-content: center;
}

.page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}
.page-link:hover {
    background: var(--color-bg);
    border-color: var(--color-text-muted);
    color: var(--color-text);
}

.page-link.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

/* ----------------------------------------------------------
 * 11. 空状态
 * ---------------------------------------------------------- */
.empty-state {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 60px 24px;
    text-align: center;
    color: var(--color-text-secondary);
}

/* 空状态友好占位 */
.empty-state::before {
    content: "";
    display: block;
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: var(--color-border-light);
    border-radius: 50%;
    position: relative;
}
.empty-state::after {
    content: "";
    position: absolute;
    width: 28px;
    height: 28px;
    border: 3px solid var(--color-text-muted);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.4;
}

.empty-card {
    padding: 20px;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    margin-top: 16px;
}

/* ----------------------------------------------------------
 * 12. 归档页
 * ---------------------------------------------------------- */
.archive {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.archive-group + .archive-group {
    margin-top: 28px;
}

.archive-date {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 12px;
    border-left: 3px solid var(--color-primary);
    padding-left: 12px;
    line-height: 1.4;
}

.archive-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.archive-list li {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 12px;
    border-bottom: 1px dashed var(--color-border-light);
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}
.archive-list li:hover {
    background: var(--color-bg);
}
.archive-list li:last-child {
    border-bottom: none;
}

.archive-time {
    color: var(--color-text-muted);
    min-width: 50px;
    font-size: 0.88rem;
    font-variant-numeric: tabular-nums;
}

.archive-link {
    flex: 1;
    color: var(--color-text);
    transition: color var(--transition-fast);
}
.archive-link:hover {
    color: var(--color-primary);
}

.archive-meta {
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

/* ----------------------------------------------------------
 * 13. 文章详情
 * ---------------------------------------------------------- */
.post-detail {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 36px 40px;
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
}

.post-detail-title {
    font-size: 2rem;
    margin-bottom: 14px;
    line-height: 1.35;
    letter-spacing: -0.3px;
}

.post-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border-light);
}

.post-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.post-detail-cover {
    margin: 24px 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.post-detail-cover img {
    width: 100%;
    max-height: 440px;
    object-fit: cover;
}

/* 文章正文排版 */
.post-detail-content {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text);
    word-break: break-word;
    letter-spacing: 0.3px;
}
.post-detail-content p {
    margin: 0 0 1.1rem;
}
.post-detail-content h2,
.post-detail-content h3 {
    margin-top: 2rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
}
.post-detail-content h2 {
    font-size: 1.5rem;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border-light);
}
.post-detail-content h3 {
    font-size: 1.2rem;
}
.post-detail-content img {
    border-radius: var(--radius-md);
    margin: 16px auto;
}
.post-detail-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.post-detail-content a:hover {
    color: var(--color-accent-dark);
}
.post-detail-content ul,
.post-detail-content ol {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}
.post-detail-content li {
    margin-bottom: 0.4rem;
}
.post-detail-content blockquote {
    border-left: 4px solid var(--color-primary);
    padding: 12px 20px;
    background: var(--color-bg);
    color: var(--color-text-secondary);
    margin: 1.2rem 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
}
.post-detail-content code {
    background: var(--color-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.88em;
    font-family: var(--font-mono);
    color: var(--color-accent-dark);
}
.post-detail-content pre {
    background: #0f172a;
    color: #e2e8f0;
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin: 1.2rem 0;
    line-height: 1.6;
    font-size: 0.9rem;
}
.post-detail-content pre code {
    background: transparent;
    color: inherit;
    padding: 0;
    font-size: inherit;
}
.post-detail-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.92rem;
}
.post-detail-content th,
.post-detail-content td {
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    text-align: left;
}
.post-detail-content th {
    background: var(--color-bg);
    font-weight: 600;
}
.post-detail-content hr {
    border: none;
    height: 1px;
    background: var(--color-border);
    margin: 2rem 0;
}

/* 文章底部 */
.post-detail-footer {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border-light);
    display: flex;
    justify-content: center;
    gap: 12px;
}

/* 隐藏内容块 */
.post-hidden-block {
    margin: 28px 0;
}

.hidden-locked {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    background: var(--color-bg);
    color: var(--color-text-secondary);
}

.locked-icon {
    font-size: 2.2rem;
    margin-bottom: 8px;
    opacity: 0.6;
}

.locked-text {
    margin: 8px 0 16px;
    font-size: 0.95rem;
}

.unlock-form {
    margin-top: 16px;
}

.hidden-unlocked {
    background: var(--color-success-bg);
    border: 1px solid #a7f3d0;
    border-radius: var(--radius-lg);
    padding: 24px;
}

.hidden-label {
    color: #065f46;
    font-weight: 600;
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid #a7f3d0;
    font-size: 0.95rem;
}

/* 点赞 */
.like-form {
    display: inline-flex;
    align-items: center;
}
.like-form .like-icon {
    margin-right: 6px;
    transition: transform var(--transition-fast);
}
.like-form:hover .like-icon {
    transform: scale(1.2);
}
.like-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* ----------------------------------------------------------
 * 14. 相关文章
 * ---------------------------------------------------------- */
.related-posts {
    margin-bottom: 28px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.related-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    color: inherit;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}
.related-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.related-cover {
    height: 140px;
    overflow: hidden;
    background: var(--color-border-light);
}
.related-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}
.related-card:hover .related-cover img {
    transform: scale(1.05);
}

.related-body {
    padding: 14px 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.related-body h3 {
    font-size: 0.95rem;
    margin-bottom: 6px;
    font-weight: 600;
    line-height: 1.4;
}
.related-body h3 a {
    color: var(--color-text);
    transition: color var(--transition-fast);
}
.related-body h3 a:hover {
    color: var(--color-primary);
}

/* ----------------------------------------------------------
 * 15. 评论区
 * ---------------------------------------------------------- */
.comments {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 28px;
    box-shadow: var(--shadow-sm);
}

.comment-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comment-item {
    padding: 18px 0;
    border-bottom: 1px solid var(--color-border-light);
}
.comment-item:first-child {
    padding-top: 0;
}
.comment-item:last-child {
    border-bottom: none;
}

.comment-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.comment-delete {
    margin-left: auto;
}

.comment-body {
    color: var(--color-text);
    word-break: break-word;
    line-height: 1.75;
    font-size: 0.95rem;
}

/* 评论表单 */
.comment-form {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border-light);
}

.form-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 14px;
    color: var(--color-text);
}

.form-tip {
    color: var(--color-text-muted);
    font-size: 0.88rem;
    margin-bottom: 12px;
}

.comment-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    resize: vertical;
    font-family: inherit;
    font-size: 0.92rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.comment-form textarea::placeholder {
    color: var(--color-text-muted);
}
.comment-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background: var(--color-surface);
}

.form-actions {
    margin-top: 14px;
    text-align: right;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* ----------------------------------------------------------
 * 16. 页脚
 * ---------------------------------------------------------- */
.site-footer {
    margin-top: 56px;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border-light);
    padding: 40px 0 24px;
    color: var(--color-text-secondary);
    font-size: 0.85rem;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.footer-brand .site-logo {
    font-size: 1.1rem;
}

.footer-desc {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    max-width: 360px;
    text-align: center;
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.footer-col-title {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 4px;
}

.footer-col a {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    width: 100%;
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--color-border-light);
}

.footer-bottom p {
    margin: 2px 0;
}

.footer-powered {
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

/* 导航栏搜索图标 */
.nav-search-icon {
    display: inline-flex;
    align-items: center;
    color: var(--color-text-muted);
    position: absolute;
    left: 12px;
    pointer-events: none;
    transition: color var(--transition-fast);
}

.nav-search {
    position: relative;
}

.nav-search input {
    padding-left: 34px;
}

.nav-search input:focus ~ .nav-search-icon,
.nav-search input:focus + .nav-search-icon {
    color: var(--color-primary);
}

/* 用户头像首字母 */
.nav-user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: 6px;
    flex-shrink: 0;
}

/* 滚动检测 body class */
.body-scrolled .site-header {
    box-shadow: var(--shadow-md);
}

/* ----------------------------------------------------------
 * 17. 登录/注册页
 * ---------------------------------------------------------- */
.auth-wrap {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.auth-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 36px 32px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-md);
}

.auth-sub {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.auth-form label {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 4px;
    display: block;
}
.auth-form input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.92rem;
    color: var(--color-text);
    background: var(--color-bg);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.auth-form input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background: var(--color-surface);
}

.auth-foot {
    text-align: center;
    margin-top: 20px;
    font-size: 0.88rem;
    color: var(--color-text-secondary);
}
.auth-foot a {
    color: var(--color-primary);
    font-weight: 500;
}

/* ----------------------------------------------------------
 * 18. 支付/会员页
 * ---------------------------------------------------------- */
.pay-wrap {
    max-width: 800px;
    margin: 0 auto;
    padding: 88px 20px 48px;
}

.pay-header {
    text-align: center;
    margin-bottom: 32px;
}
.pay-header h1 {
    font-size: 1.8rem;
    margin-bottom: 8px;
}
.pay-header .sub {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.package-form {
    margin-bottom: 32px;
}

.packages {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}

.package-item {
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px 20px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}
.package-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}
.package-item.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.package-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 12px 0 4px;
}
.package-points {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 8px;
}
.package-per {
    color: var(--color-text-muted);
    font-size: 0.82rem;
}

/* 数据表格 */
.table-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}
.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
}
.data-table th {
    background: var(--color-bg);
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.data-table tr:hover td {
    background: var(--color-bg);
}
.data-table tr:last-child td {
    border-bottom: none;
}

/* 状态徽章 */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 500;
}
.status-wait {
    background: #fef3c7;
    color: #92400e;
}
.status-success {
    background: #ecfdf5;
    color: #065f46;
}
.status-fail {
    background: #fef2f2;
    color: #991b1b;
}
.status-cancel {
    background: var(--color-bg);
    color: var(--color-text-muted);
}

/* ----------------------------------------------------------
 * 19. 滚动条美化
 * ---------------------------------------------------------- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

/* ----------------------------------------------------------
 * 20. 选中文字样式
 * ---------------------------------------------------------- */
::selection {
    background: rgba(37, 99, 235, 0.15);
    color: var(--color-text);
}

/* ----------------------------------------------------------
 * 21. 响应式设计
 * ---------------------------------------------------------- */

/* 平板及以下 */
@media (max-width: 960px) {
    .layout-grid {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .post-card-compact {
        grid-template-columns: 1fr;
    }

    .post-cover-sm {
        min-height: 180px;
    }

    .related-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }

    .packages {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }

    .post-detail {
        padding: 28px 24px;
    }
}

/* 手机端 */
@media (max-width: 768px) {
    /* 导航栏 */
    .nav-toggle {
        display: flex;
    }

    .site-nav {
        display: none;
        position: absolute;
        top: 64px;
        right: 0;
        left: 0;
        background: rgba(255, 255, 255, 0.98);
        -webkit-backdrop-filter: blur(12px);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 16px 20px;
        border-top: 1px solid var(--color-border-light);
        box-shadow: var(--shadow-lg);
        align-items: stretch;
    }
    .site-nav.open {
        display: flex;
    }
    .site-nav ul {
        flex-direction: column;
        width: 100%;
    }
    .site-nav ul li a {
        display: block;
        padding: 12px 14px;
        border-radius: var(--radius-md);
    }

    .nav-actions {
        width: 100%;
        flex-wrap: wrap;
    }
    .nav-search {
        width: 100%;
        margin-left: 0;
    }
    .nav-search input {
        flex: 1;
        min-width: 0;
        width: 100%;
    }

    .header-inner {
        height: 56px;
    }

    /* 主内容 */
    .site-main {
        padding: 72px 0 32px;
    }

    .container {
        padding: 0 16px;
    }

    /* 文章详情 */
    .post-detail {
        padding: 20px 16px;
        border-radius: var(--radius-lg);
    }
    .post-detail-title {
        font-size: 1.5rem;
    }
    .post-detail-content {
        font-size: 0.95rem;
    }
    .post-detail-content pre {
        padding: 14px 16px;
        font-size: 0.82rem;
        border-radius: var(--radius-md);
    }

    /* 评论区 */
    .comments {
        padding: 20px 16px;
        border-radius: var(--radius-lg);
    }

    /* 相关文章 */
    .related-grid {
        grid-template-columns: 1fr;
    }

    /* 支付 */
    .packages {
        grid-template-columns: 1fr;
    }

    /* 表格横向滚动 */
    .table-card {
        overflow-x: auto;
    }
    .data-table {
        min-width: 500px;
    }

    /* Banner */
    .banner-slide {
        min-height: 160px;
    }
    .banner-slide img {
        height: 180px;
    }
    .banner-placeholder {
        padding: 32px 20px;
        min-height: 160px;
    }
    .banner-placeholder h2 {
        font-size: 1.3rem;
    }

    /* 分页 */
    .pagination {
        gap: 4px;
    }
    .page-link {
        min-width: 34px;
        height: 34px;
        font-size: 0.85rem;
        padding: 0 10px;
    }

    /* 归档 */
    .archive {
        padding: 16px;
    }
    .archive-list li {
        flex-wrap: wrap;
        gap: 6px;
    }

    /* 认证页 */
    .auth-card {
        padding: 28px 20px;
    }

    /* 按钮 */
    .btn {
        padding: 9px 16px;
        font-size: 0.88rem;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.1rem; }

    .post-detail-title {
        font-size: 1.3rem;
    }

    .section-title {
        font-size: 1.2rem;
    }

    .widget {
        padding: 16px;
    }

    .tag-cloud {
        gap: 6px;
    }
    .tag-chip {
        font-size: 0.8rem;
        padding: 5px 10px;
    }
}