/*
Theme Name: 似水流年
Theme URI: https://www.ccec.cn
Author: 逝去的青春
Author URI: https://www.ccec.cn
Description: 似水流年，祭奠我们逝去的青春。一个怀旧文艺风格的个人博客主题，承载岁月的痕迹与青春的记忆。
Version: 2.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: siliushuinian
Tags: 博客, 文艺, 怀旧, 单栏, 响应式
*/

/* ========================================
   似水流年 v2.0 - 主题样式表
   祭奠我们逝去的青春
   ======================================== */

/* ===== 基础重置 ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 怀旧色调 */
    --color-bg: #f5f0e8;
    --color-bg-alt: #ebe4d6;
    --color-bg-deep: #ddd3c0;
    --color-text: #3d3d3d;
    --color-text-light: #6b6b6b;
    --color-text-muted: #9a9a9a;
    --color-accent: #8b6914;
    --color-accent-light: #c4a35a;
    --color-accent-dark: #6b4f0e;
    --color-border: #d4c9b8;
    --color-border-light: #e5ddd0;
    --color-white: #faf8f5;
    --color-dark: #2a2a2a;
    --color-rose: #c08a7a;
    --color-rose-light: #d4a298;
    --color-sepia: #b8a88e;
    
    /* 字体 */
    --font-serif: "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", Georgia, serif;
    --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
    --font-mono: "JetBrains Mono", "Fira Code", "Courier New", monospace;
    
    /* 间距 */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 64px;
    --spacing-2xl: 96px;
    
    /* 过渡 */
    --transition: all 0.3s ease;
    --transition-slow: all 0.6s ease;
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(139, 105, 20, 0.06);
    --shadow-md: 0 4px 20px rgba(139, 105, 20, 0.08);
    --shadow-lg: 0 8px 30px rgba(139, 105, 20, 0.12);
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-serif);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.8;
    min-height: 100vh;
    /* 复古纸张纹理背景 */
    background-image: 
        radial-gradient(ellipse at top left, rgba(196, 163, 90, 0.08), transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(192, 138, 122, 0.06), transparent 50%),
        url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23d4c9b8' fill-opacity='0.1'%3E%3Cpath d='M40 40c0-11.046-8.954-20-20-20S0 28.954 0 40s8.954 20 20 20 20-8.954 20-20zm0 0c0-11.046 8.954-20 20-20s20 8.954 20 20-8.954 20-20 20-20-8.954-20-20z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    background-attachment: fixed;
}

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

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

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

::selection {
    background: var(--color-accent-light);
    color: var(--color-white);
}

::-moz-selection {
    background: var(--color-accent-light);
    color: var(--color-white);
}

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-alt);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-light);
}

/* ===== 页面容器 ===== */
.site {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: relative;
}

.site-content {
    flex: 1;
    max-width: 960px;
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: var(--spacing-lg);
}

.main-content {
    min-width: 0;
}

/* ===== 飘落花瓣容器 ===== */
.petals-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.petal {
    position: absolute;
    top: -20px;
    width: 12px;
    height: 12px;
    background: radial-gradient(ellipse at center, var(--color-rose-light), var(--color-rose));
    border-radius: 0 100% 0 100%;
    opacity: 0.5;
    animation: petalFall linear infinite;
}

@keyframes petalFall {
    0% {
        transform: translateY(0) translateX(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.5;
    }
    90% {
        opacity: 0.5;
    }
    100% {
        transform: translateY(100vh) translateX(100px) rotate(360deg);
        opacity: 0;
    }
}

/* ===== 头部 ===== */
.site-header {
    background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-2xl) var(--spacing-md) var(--spacing-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.site-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-accent-light), var(--color-accent), var(--color-accent-light), transparent);
}

.site-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.header-content {
    position: relative;
    z-index: 2;
}

/* 标题装饰 - 左右线条 */
.site-title {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 400;
    color: var(--color-dark);
    letter-spacing: 0.2em;
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.site-title::before,
.site-title::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent-light));
}

.site-title::before {
    right: 100%;
    margin-right: 20px;
}

.site-title::after {
    left: 100%;
    margin-left: 20px;
    background: linear-gradient(90deg, var(--color-accent-light), transparent);
}

.site-title a {
    color: inherit;
    transition: var(--transition);
}

.site-title a:hover {
    color: var(--color-accent);
    text-shadow: 0 0 20px rgba(139, 105, 20, 0.15);
}

.site-description {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--color-text-light);
    font-weight: 300;
    letter-spacing: 0.15em;
    margin-top: var(--spacing-xs);
}

/* 头部装饰 - 邮戳风格 */
.header-stamp {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 80px;
    height: 80px;
    border: 2px solid var(--color-rose);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotate(-15deg);
    opacity: 0.3;
    pointer-events: none;
}

.header-stamp::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 1px dashed var(--color-rose);
    border-radius: 50%;
}

.header-stamp span {
    font-family: var(--font-serif);
    font-size: 0.7rem;
    color: var(--color-rose);
    text-align: center;
    line-height: 1.3;
    letter-spacing: 0.05em;
}

/* ===== 导航 ===== */
.main-navigation {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(8px);
    background-color: rgba(250, 248, 245, 0.92);
}

.main-navigation .menu {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.main-navigation .menu-item a {
    color: var(--color-text-light);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.main-navigation .menu-item a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: var(--transition);
    transform: translateX(-50%);
}

.main-navigation .menu-item a:hover {
    color: var(--color-accent);
}

.main-navigation .menu-item a:hover::after {
    width: 80%;
}

.main-navigation .current-menu-item > a {
    color: var(--color-accent);
    font-weight: 500;
}

/* ===== 首页欢迎语 ===== */
.home-banner {
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-bg) 100%);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: var(--spacing-xl) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.home-banner::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 1px dashed var(--color-border);
    border-radius: 2px;
    pointer-events: none;
}

.home-banner h2 {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.1em;
}

.home-banner .banner-subtitle {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--color-text-light);
    font-style: italic;
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto;
}

.home-banner .banner-date {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-md);
    letter-spacing: 0.1em;
}

.home-banner .banner-divider {
    width: 40px;
    height: 1px;
    background: var(--color-accent-light);
    margin: var(--spacing-md) auto;
}

/* ===== 文章列表 ===== */
.posts-list {
    margin-top: 0;
}

.post-item {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    transition: var(--transition);
    position: relative;
    box-shadow: var(--shadow-sm);
}

/* 左侧装饰条 */
.post-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-accent-light), var(--color-rose-light), transparent);
    opacity: 0;
    transition: var(--transition);
    border-radius: 4px 0 0 4px;
}

.post-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.post-item:hover::before {
    opacity: 1;
}

/* 文章日期标签 */
.post-item .post-date-badge {
    position: absolute;
    top: -1px;
    right: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-white);
    font-family: var(--font-sans);
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 0 0 4px 4px;
    letter-spacing: 0.05em;
    box-shadow: 0 2px 8px rgba(139, 105, 20, 0.2);
}

.post-item .post-date-badge .date-day {
    font-size: 1.1rem;
    font-weight: 500;
    display: block;
    line-height: 1.2;
}

.post-item .post-date-badge .date-month {
    font-size: 0.7rem;
    opacity: 0.9;
}

/* 置顶标记 */
.post-item .sticky-badge {
    display: inline-block;
    background: var(--color-rose);
    color: var(--color-white);
    font-family: var(--font-sans);
    font-size: 0.75rem;
    padding: 2px 10px;
    border-radius: 2px;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.05em;
}

.post-meta {
    font-family: var(--font-sans);
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: center;
}

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

.post-meta .meta-divider {
    color: var(--color-border);
    margin: 0 -4px;
}

.post-meta a {
    color: var(--color-text-muted);
}

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

.post-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    color: var(--color-dark);
}

.post-title a {
    color: inherit;
    transition: var(--transition);
}

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

/* 文章摘要 */
.post-excerpt {
    color: var(--color-text-light);
    line-height: 1.9;
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

/* 阅读全文按钮 */
.post-read-more {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-accent);
    letter-spacing: 0.08em;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 0;
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.post-read-more::after {
    content: '→';
    transition: var(--transition);
}

.post-read-more:hover {
    border-bottom-color: var(--color-accent);
    color: var(--color-accent-dark);
}

.post-read-more:hover::after {
    transform: translateX(4px);
}

/* ===== 单篇文章 ===== */
.single-post {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: var(--spacing-xl) var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    position: relative;
}

/* 信纸风格装饰线 */
.single-post::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent-light), transparent);
}

.single-post .post-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.single-post .post-meta {
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px dashed var(--color-border);
}

.single-post .entry-content {
    margin-top: var(--spacing-lg);
    font-size: 1.02rem;
    line-height: 2;
}

.single-post .entry-content p {
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

/* 首字下沉 */
.single-post .entry-content > p:first-of-type::first-letter {
    font-size: 3.5rem;
    font-family: var(--font-serif);
    font-weight: 500;
    color: var(--color-accent);
    float: left;
    line-height: 1;
    margin-right: 8px;
    margin-top: 4px;
    padding: 4px 8px 4px 0;
    border-right: 2px solid var(--color-accent-light);
}

.single-post .entry-content h2,
.single-post .entry-content h3,
.single-post .entry-content h4 {
    font-family: var(--font-serif);
    font-weight: 500;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.single-post .entry-content h2 {
    font-size: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--spacing-xs);
    position: relative;
}

.single-post .entry-content h2::before {
    content: '❧';
    color: var(--color-accent-light);
    margin-right: 8px;
    font-size: 1.2rem;
}

.single-post .entry-content h3 {
    font-size: 1.25rem;
}

.single-post .entry-content h3::before {
    content: '◆';
    color: var(--color-accent-light);
    margin-right: 6px;
    font-size: 0.8rem;
}

/* 引用块 - 信纸风格 */
.single-post .entry-content blockquote {
    border-left: 3px solid var(--color-accent-light);
    padding: var(--spacing-md) var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    background-color: var(--color-bg);
    font-style: italic;
    color: var(--color-text-light);
    border-radius: 0 4px 4px 0;
    position: relative;
}

.single-post .entry-content blockquote::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 10px;
    font-size: 3rem;
    color: var(--color-accent-light);
    opacity: 0.3;
    font-family: Georgia, serif;
}

.single-post .entry-content blockquote p {
    margin-bottom: 0;
}

.single-post .entry-content ul,
.single-post .entry-content ol {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-xl);
}

.single-post .entry-content li {
    margin-bottom: var(--spacing-xs);
}

.single-post .entry-content img {
    border-radius: 4px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.single-post .entry-content img:hover {
    box-shadow: var(--shadow-lg);
}

/* 代码块 */
.single-post .entry-content pre {
    background-color: var(--color-dark);
    color: #d4c9b8;
    padding: var(--spacing-md);
    border-radius: 4px;
    overflow-x: auto;
    margin: var(--spacing-md) 0;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    line-height: 1.6;
}

.single-post .entry-content code {
    font-family: var(--font-mono);
    font-size: 0.88rem;
    background-color: var(--color-bg-alt);
    padding: 2px 6px;
    border-radius: 2px;
    color: var(--color-accent-dark);
}

.single-post .entry-content pre code {
    background: none;
    color: inherit;
    padding: 0;
}

/* 表格 */
.single-post .entry-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
}

.single-post .entry-content th,
.single-post .entry-content td {
    border: 1px solid var(--color-border);
    padding: var(--spacing-xs) var(--spacing-sm);
    text-align: left;
}

.single-post .entry-content th {
    background-color: var(--color-bg);
    font-weight: 500;
}

/* 分割线 - 装饰风格 */
.single-post .entry-content hr {
    border: none;
    height: 20px;
    margin: var(--spacing-lg) 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='20' viewBox='0 0 100 20'%3E%3Cpath d='M50 10 L40 5 L30 10 L40 15 Z M50 10 L60 5 L70 10 L60 15 Z' fill='%23c4a35a' fill-opacity='0.4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

/* ===== 文章末尾装饰 ===== */
.post-end-decoration {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px dashed var(--color-border);
}

.post-end-decoration .end-ornament {
    font-size: 1.5rem;
    color: var(--color-accent-light);
    letter-spacing: 1rem;
    margin-bottom: var(--spacing-sm);
}

.post-end-decoration .end-text {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

/* ===== 文章标签 ===== */
.post-tags {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px dashed var(--color-border);
}

.post-tags .tags-label {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-right: var(--spacing-sm);
}

.post-tags a {
    display: inline-block;
    padding: 3px 12px;
    margin: 4px 4px 4px 0;
    border: 1px solid var(--color-border);
    border-radius: 2px;
    font-size: 0.82rem;
    color: var(--color-text-light);
    transition: var(--transition);
}

.post-tags a:hover {
    border-color: var(--color-accent-light);
    color: var(--color-accent);
    background-color: var(--color-bg);
}

/* ===== 评论 ===== */
.comments-area {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    box-shadow: var(--shadow-sm);
}

.comments-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-dark);
}

.comment-list {
    list-style: none;
}

.comment-list .comment {
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    margin-bottom: var(--spacing-sm);
    border-radius: 4px;
    border-left: 3px solid var(--color-border);
    transition: var(--transition);
}

.comment-list .comment:hover {
    border-left-color: var(--color-accent-light);
}

.comment-author {
    font-weight: 500;
    color: var(--color-dark);
    font-size: 0.95rem;
}

.comment-author .avatar {
    border-radius: 50%;
    border: 2px solid var(--color-border);
    margin-right: 8px;
}

.comment-meta {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.comment-content {
    color: var(--color-text-light);
    font-size: 0.92rem;
    line-height: 1.8;
}

/* 评论表单 */
.comment-form {
    margin-top: var(--spacing-lg);
}

.comment-form .comment-form-comment label,
.comment-form .comment-form-author label,
.comment-form .comment-form-email label {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: 4px;
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-serif);
    font-size: 0.95rem;
    border-radius: 4px;
    transition: var(--transition);
}

.comment-form input:focus,
.comment-form textarea:focus {
    outline: none;
    border-color: var(--color-accent-light);
    box-shadow: 0 0 0 3px rgba(196, 163, 90, 0.1);
}

.comment-form .submit {
    padding: 10px 28px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    border: none;
    color: var(--color-white);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.05em;
}

.comment-form .submit:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

/* ===== 分页 ===== */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.pagination a,
.pagination span {
    padding: 8px 16px;
    border: 1px solid var(--color-border);
    color: var(--color-text-light);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    transition: var(--transition);
    border-radius: 4px;
}

.pagination a:hover {
    border-color: var(--color-accent-light);
    color: var(--color-accent);
    background-color: var(--color-bg);
    box-shadow: var(--shadow-sm);
}

.pagination .current {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    border-color: var(--color-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

/* ===== 页脚 ===== */
.site-footer {
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
    text-align: center;
    margin-top: auto;
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent-light), transparent);
}

.site-footer .footer-quote {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.05rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
    letter-spacing: 0.1em;
    position: relative;
    display: inline-block;
}

.site-footer .footer-quote::before,
.site-footer .footer-quote::after {
    content: '❀';
    color: var(--color-rose-light);
    font-size: 0.8rem;
    margin: 0 12px;
    opacity: 0.6;
}

.site-footer .footer-info {
    font-family: var(--font-sans);
    font-size: 0.82rem;
    color: var(--color-text-muted);
    line-height: 2;
}

.site-footer .footer-info a {
    color: var(--color-text-muted);
    border-bottom: 1px dashed transparent;
}

.site-footer .footer-info a:hover {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent-light);
}

.site-footer .footer-divider {
    width: 30px;
    height: 1px;
    background: var(--color-border);
    margin: var(--spacing-sm) auto;
}

/* ===== 侧边栏 ===== */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.sidebar .widget {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.sidebar .widget:hover {
    box-shadow: var(--shadow-md);
}

.sidebar .widget-title {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-dark);
    position: relative;
    letter-spacing: 0.05em;
}

.sidebar .widget-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    border-radius: 1px;
}

.sidebar ul {
    list-style: none;
}

.sidebar ul li {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px dashed var(--color-border-light);
    transition: var(--transition);
}

.sidebar ul li:last-child {
    border-bottom: none;
}

.sidebar ul li:hover {
    padding-left: 6px;
}

.sidebar ul li a {
    color: var(--color-text-light);
    font-size: 0.88rem;
    line-height: 1.6;
}

.sidebar ul li a:hover {
    color: var(--color-accent);
}

/* 侧边栏 - 关于卡片 */
.sidebar .widget-about {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-bg) 100%);
}

.sidebar .widget-about .about-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 3px solid var(--color-border);
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--color-accent);
    background: var(--color-bg-alt);
    overflow: hidden;
}

.sidebar .widget-about .about-name {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--color-dark);
    margin-bottom: 4px;
}

.sidebar .widget-about .about-bio {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* 侧边栏 - 归档时间轴 */
.sidebar .widget_archive ul {
    position: relative;
    padding-left: 16px;
}

.sidebar .widget_archive ul::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--color-border);
}

.sidebar .widget_archive ul li {
    position: relative;
    border-bottom: none;
    padding: 6px 0 6px 12px;
}

.sidebar .widget_archive ul li::before {
    content: '';
    position: absolute;
    left: -16px;
    top: 14px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-white);
    border: 2px solid var(--color-accent-light);
    transition: var(--transition);
}

.sidebar .widget_archive ul li:hover::before {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

/* ===== 搜索框 ===== */
.search-form {
    display: flex;
    margin-bottom: 0;
}

.search-form input[type="search"] {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: 0.88rem;
    border-radius: 4px 0 0 4px;
    transition: var(--transition);
}

.search-form input[type="search"]:focus {
    outline: none;
    border-color: var(--color-accent-light);
    box-shadow: 0 0 0 3px rgba(196, 163, 90, 0.1);
}

.search-form input[type="submit"] {
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    border: 1px solid var(--color-accent);
    color: var(--color-white);
    font-family: var(--font-sans);
    font-size: 0.88rem;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: var(--transition);
}

.search-form input[type="submit"]:hover {
    opacity: 0.9;
    box-shadow: var(--shadow-sm);
}

/* ===== 标签云 ===== */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tag-cloud a {
    padding: 3px 12px;
    border: 1px solid var(--color-border);
    border-radius: 2px;
    font-size: 0.82rem;
    color: var(--color-text-light);
    transition: var(--transition);
}

.tag-cloud a:hover {
    border-color: var(--color-accent-light);
    color: var(--color-white);
    background: var(--color-accent);
}

/* ===== 文章导航 ===== */
.post-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    box-shadow: var(--shadow-sm);
}

.post-navigation .nav-previous,
.post-navigation .nav-next {
    flex: 1;
}

.post-navigation .nav-previous a,
.post-navigation .nav-next a {
    display: block;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border-light);
    border-radius: 4px;
    font-family: var(--font-sans);
    font-size: 0.88rem;
    color: var(--color-text-light);
    transition: var(--transition);
}

.post-navigation .nav-previous a:hover,
.post-navigation .nav-next a:hover {
    border-color: var(--color-accent-light);
    color: var(--color-accent);
    background-color: var(--color-bg);
    box-shadow: var(--shadow-sm);
}

.post-navigation .nav-label {
    display: block;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-bottom: 4px;
    letter-spacing: 0.05em;
}

.post-navigation .nav-title {
    display: block;
    font-family: var(--font-serif);
    font-size: 0.95rem;
    color: var(--color-dark);
}

.post-navigation .nav-next {
    text-align: right;
}

/* ===== 作者信息 ===== */
.author-bio {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-white) 100%);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.author-bio .author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    flex-shrink: 0;
}

.author-bio h4 {
    font-family: var(--font-serif);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
    font-size: 1rem;
}

.author-bio p {
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===== 404 页面 ===== */
.error-404 {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-md);
}

.error-404 .error-code {
    font-family: var(--font-serif);
    font-size: 5rem;
    font-weight: 400;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.1em;
    text-shadow: 0 4px 20px rgba(139, 105, 20, 0.1);
}

.error-404 .error-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

.error-404 .error-desc {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
    line-height: 1.8;
}

.error-404 .error-action {
    display: inline-block;
    padding: 10px 28px;
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition);
    border-radius: 4px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
}

.error-404 .error-action:hover {
    background: var(--color-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

/* ===== 归档页头部 ===== */
.archive-header {
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-bg) 100%);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.archive-header h1 {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 500;
    color: var(--color-dark);
    margin-bottom: var(--spacing-xs);
}

.archive-header .archive-description {
    font-size: 0.9rem;
    color: var(--color-text-light);
    font-style: italic;
}

/* ===== 搜索结果页 ===== */
.search-results-header {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.search-results-header h1 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--color-dark);
}

.search-results-header .search-keyword {
    color: var(--color-accent);
    font-style: italic;
}

/* ===== 阅读进度条 ===== */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light), var(--color-rose-light));
    z-index: 9999;
    transition: width 0.1s ease;
    box-shadow: 0 1px 4px rgba(139, 105, 20, 0.3);
}

/* ===== 返回顶部按钮 ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 4px 15px rgba(139, 105, 20, 0.25);
    cursor: pointer;
    text-decoration: none;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(139, 105, 20, 0.35);
}

/* ===== 图片覆盖层 ===== */
.image-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9998;
    cursor: pointer;
    animation: overlayFadeIn 0.3s ease;
}

@keyframes overlayFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.image-overlay img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    animation: imgZoomIn 0.3s ease;
}

@keyframes imgZoomIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

body.image-overlay-open {
    overflow: hidden;
}

/* ===== 打字机效果 ===== */
.typewriter {
    display: inline-block;
    border-right: 2px solid var(--color-accent);
    animation: blinkCursor 0.8s step-end infinite;
}

@keyframes blinkCursor {
    50% { border-color: transparent; }
}

/* ===== 响应式设计 ===== */
@media (max-width: 960px) {
    .site-content {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        order: 2;
    }
}

@media (max-width: 768px) {
    .site-title {
        font-size: 1.8rem;
    }
    
    .site-title::before,
    .site-title::after {
        width: 20px;
    }
    
    .main-navigation .menu {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .post-item {
        padding: var(--spacing-md);
    }
    
    .single-post {
        padding: var(--spacing-md);
    }
    
    .single-post .post-title {
        font-size: 1.5rem;
    }
    
    .post-navigation {
        flex-direction: column;
    }
    
    .post-navigation .nav-next {
        text-align: left;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 38px;
        height: 38px;
    }
    
    .header-stamp {
        display: none;
    }
    
    .home-banner {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .home-banner h2 {
        font-size: 1.3rem;
    }
    
    .author-bio {
        flex-direction: column;
        text-align: center;
    }
    
    .error-404 .error-code {
        font-size: 3.5rem;
    }
}

/* ===== 打印样式 ===== */
@media print {
    .site-header,
    .main-navigation,
    .site-footer,
    .sidebar,
    .comments-area,
    .back-to-top,
    .reading-progress,
    .petals-container,
    .post-navigation {
        display: none !important;
    }
    
    .site-content {
        max-width: 100%;
        display: block;
    }
    
    body {
        background: white;
    }
    
    .post-item,
    .single-post {
        box-shadow: none;
        border: none;
        padding: 0;
        margin-bottom: 20px;
    }
}

/* ===== 动画效果 ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.post-item {
    animation: fadeInUp 0.6s ease forwards;
}

.post-item:nth-child(1) { animation-delay: 0.05s; }
.post-item:nth-child(2) { animation-delay: 0.15s; }
.post-item:nth-child(3) { animation-delay: 0.25s; }
.post-item:nth-child(4) { animation-delay: 0.35s; }
.post-item:nth-child(5) { animation-delay: 0.45s; }
.post-item:nth-child(6) { animation-delay: 0.55s; }

.home-banner {
    animation: fadeIn 0.8s ease forwards;
}

/* ===== 无文章时 ===== */
.no-results {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-md);
}

.no-results h2 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

.no-results p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

/* ===== 404 页面（增强版） ===== */
.error-404 {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-md);
}

.error-404-scroll {
    position: relative;
    max-width: 720px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-bg) 100%);
    border: 1px dashed var(--color-border);
    border-radius: 6px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

/* 邮戳 */
.error-stamp {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 78px;
    height: 78px;
    border: 2px solid var(--color-rose);
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotate(-8deg);
    opacity: 0.85;
}
.error-stamp::before {
    content: '';
    position: absolute;
    inset: 4px;
    border: 1px dashed var(--color-rose);
}
.error-stamp span {
    font-family: var(--font-serif);
    font-size: 0.78rem;
    line-height: 1.4;
    color: var(--color-rose);
    text-align: center;
    letter-spacing: 0.1em;
}

/* 错误码 */
.error-404 .error-code {
    font-family: var(--font-serif);
    font-size: 5rem;
    font-weight: 400;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.1em;
    text-shadow: 0 4px 20px rgba(139, 105, 20, 0.1);
}

/* 横向金色分隔线 */
.error-divider {
    width: 120px;
    height: 1px;
    margin: var(--spacing-sm) auto var(--spacing-md);
    background: linear-gradient(90deg, transparent, var(--color-accent-light), transparent);
}

/* 标题 */
.error-404 .error-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

/* 描述 */
.error-404 .error-desc {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
    line-height: 1.8;
}

/* 操作按钮组 */
.error-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}
.error-404 .error-action {
    display: inline-block;
    padding: 10px 28px;
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition);
    border-radius: 4px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
}
.error-404 .error-action-primary:hover {
    background: var(--color-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}
.error-404 .error-action-ghost {
    border-color: var(--color-border);
    color: var(--color-text-light);
}
.error-404 .error-action-ghost:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* 搜索 */
.error-search {
    max-width: 400px;
    margin: 0 auto var(--spacing-xl);
}
.error-search-label {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* 推荐入口 */
.error-suggest {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    padding-top: var(--spacing-lg);
    border-top: 1px dashed var(--color-border);
    text-align: left;
}
.error-suggest-title {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
    padding-bottom: 6px;
    border-bottom: 1px solid var(--color-border-light);
    position: relative;
}
.error-suggest-title::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 24px;
    height: 1px;
    background: var(--color-accent);
}
.error-suggest-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.error-suggest-list li {
    font-size: 0.85rem;
    color: var(--color-text-light);
    padding: 4px 0;
    border-bottom: 1px dotted var(--color-border-light);
}
.error-suggest-list li:last-child { border-bottom: none; }
.error-suggest-list a {
    color: var(--color-text-light);
    text-decoration: none;
    transition: var(--transition);
}
.error-suggest-list a:hover { color: var(--color-accent); }
.error-suggest-empty {
    color: var(--color-text-muted);
    font-style: italic;
    font-size: 0.85rem;
}
.error-suggest-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.error-tag {
    display: inline-block;
    padding: 3px 10px;
    font-size: 0.78rem;
    color: var(--color-text-light);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border-light);
    border-radius: 3px;
    text-decoration: none;
    transition: var(--transition);
}
.error-tag:hover {
    color: var(--color-white);
    background: var(--color-accent-light);
    border-color: var(--color-accent-light);
}

/* 响应式 */
@media (max-width: 768px) {
    .error-404 .error-code { font-size: 3.5rem; }
    .error-stamp { width: 64px; height: 64px; }
    .error-suggest { grid-template-columns: 1fr; }
}