/**
 * @file 川字笺博客样式文件
 * @author 川字笺
 * @link www.cczi.cn
 * @description 江南水墨风格博客样式 - 清爽优雅版
 */

/* 字体引入 */
@import url('../fonts/MaShanZheng/MaShanZheng.css');

@font-face {
    font-family: 'JetBrainsMono';
    src: url('../fonts/JetBrains-Mono/JetBrainsMono-Regular-2.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: block;
}

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --ink-black: #1a1a1a;
    --ink-dark: #2d2d2d;
    --ink-medium: #4a4a4a;
    --ink-light: #666666;
    --paper-white: #f7f4ec;
    --paper-cream: #faf7f0;
    --paper-light: #fdfaf5;
    --bamboo-green: #5a7a6a;
    --bamboo-light: #8a9a8a;
}

body {
    font-family: 'MaShanZheng', serif;
    background-color: var(--paper-white);
    color: var(--ink-dark);
    line-height: 1.9;
    font-size: 18px;
}

body.fonts-loading {
    visibility: hidden;
}

/* 导航栏 */
.nav-bamboo {
    background: var(--ink-black);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.15);
}

.nav-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
}

.nav-logo {
    font-size: 32px;
    color: var(--paper-cream);
    letter-spacing: 8px;
}

.nav-items {
    display: flex;
    gap: 25px;
    list-style: none;
    flex-wrap: wrap;
    justify-content: center;
}

.nav-item {
    color: var(--paper-light);
    font-size: 20px;
    cursor: pointer;
    position: relative;
    padding: 5px 10px;
    transition: color 0.3s ease;
    letter-spacing: 2px;
}

.nav-item a {
    color: inherit;
    text-decoration: none;
}

.nav-item:hover {
    color: var(--paper-white);
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--bamboo-green);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-item:hover::after,
.nav-item.active::after {
    width: 100%;
}

.nav-item.active {
    color: var(--paper-white);
}

/* 主要内容区域 */
.main-content {
    max-width: 1600px;
    margin: 0 auto;
    padding: 40px 30px;
}

/* 页头横幅 */
.hero-section {
    text-align: center;
    padding: 80px 20px;
    background: var(--paper-cream);
}

.hero-title {
    font-size: 56px;
    color: var(--ink-black);
    margin-bottom: 20px;
    letter-spacing: 10px;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--ink-light);
    margin-top: 30px;
    letter-spacing: 4px;
}

.hero-slogan {
    font-size: 20px;
    color: var(--bamboo-green);
    margin-top: 20px;
    letter-spacing: 3px;
}

/* 栏目卡片 */
.section-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 60px 0;
}

.section-card {
    background: var(--paper-cream);
    padding: 40px 30px;
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.section-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    border-color: var(--bamboo-green);
}

.section-icon {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--ink-medium);
}

.section-title {
    font-size: 28px;
    color: var(--ink-black);
    margin-bottom: 15px;
    letter-spacing: 4px;
}

.section-desc {
    font-size: 18px;
    color: var(--ink-light);
    line-height: 1.8;
}

/* 文章列表 */
.article-section {
    margin: 60px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 34px;
    color: var(--ink-black);
    letter-spacing: 6px;
    position: relative;
    display: inline-block;
}

.section-header h2::before,
.section-header h2::after {
    content: '——';
    color: var(--ink-light);
    margin: 0 15px;
}

.article-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.article-item {
    background: var(--paper-cream);
    padding: 30px;
    border-radius: 4px;
    border-left: 3px solid var(--ink-light);
    transition: all 0.3s ease;
    cursor: pointer;
}

.article-item:hover {
    border-left-color: var(--bamboo-green);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
}

.article-title {
    font-size: 26px;
    color: var(--ink-black);
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.article-meta {
    display: flex;
    gap: 20px;
    font-size: 16px;
    color: var(--ink-light);
    margin-bottom: 15px;
    align-items: center;
}

.article-tag {
    background: var(--bamboo-green);
    color: var(--paper-white);
    padding: 4px 14px;
    border-radius: 15px;
    font-size: 14px;
}

.article-summary {
    font-size: 18px;
    color: var(--ink-medium);
    line-height: 1.8;
}

/* 博主简介 */
.about-bamboo {
    background: var(--paper-cream);
    padding: 60px 40px;
    border-radius: 6px;
    margin: 60px 0;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.about-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ink-dark), var(--bamboo-green));
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--paper-white);
}

.about-name {
    font-size: 32px;
    color: var(--ink-black);
    margin-bottom: 15px;
    letter-spacing: 6px;
}

.about-bio {
    font-size: 19px;
    color: var(--ink-medium);
    line-height: 2;
    max-width: 700px;
    margin: 0 auto;
}

/* 页脚 */
.footer-ink {
    background: var(--ink-dark);
    color: var(--paper-light);
    padding: 50px 30px 30px;
    margin-top: 80px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-logo {
    font-size: 28px;
    letter-spacing: 8px;
    margin-bottom: 20px;
    color: var(--paper-cream);
}

.footer-info {
    font-size: 16px;
    color: var(--ink-light);
    line-height: 2;
    margin-bottom: 20px;
}

.footer-copyright {
    font-size: 14px;
    color: var(--ink-medium);
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-icp {
    font-size: 14px;
    color: var(--ink-medium);
    margin-top: 10px;
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.footer-icp a {
    color: var(--bamboo-light);
    text-decoration: none;
}

.footer-icp a:hover {
    color: var(--paper-cream);
}

.police-icon {
    display: inline-block;
    width: 20px;
    height: 20px;
    vertical-align: middle;
    margin-right: 5px;
}

/* 搜索框 */
.search-ink {
    max-width: 500px;
    margin: 40px auto;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 14px 55px 14px 20px;
    font-size: 18px;
    font-family: 'MaShanZheng', serif;
    border: 2px solid var(--ink-light);
    border-radius: 25px;
    background: var(--paper-cream);
    color: var(--ink-dark);
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--bamboo-green);
}

.search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--ink-dark);
    color: var(--paper-white);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.3s ease;
}

.search-btn:hover {
    background: var(--bamboo-green);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 20px;
    }

    .nav-items {
        gap: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-title {
        font-size: 40px;
        letter-spacing: 6px;
    }

    .section-grid {
        grid-template-columns: 1fr;
    }

    .article-meta {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
}

/* 代码块样式 */
code {
    font-family: 'JetBrainsMono', monospace;
    background: var(--paper-cream);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 16px;
}

pre {
    font-family: 'JetBrainsMono', monospace;
    background: var(--ink-dark);
    color: var(--paper-cream);
    padding: 20px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 20px 0;
}

pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

/* 动画效果 */
.fade-in {
    animation: fadeIn 0.8s ease-in-out;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 水墨分隔线 */
.ink-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--ink-light), transparent);
    margin: 40px 0;
}