/* ==========================================================================
   Minimal 极简阅读博客模板 - 纯白 × 衬线标题 × 细线分隔
   ========================================================================== */

:root {
    --mn-bg: #ffffff;
    --mn-bg-alt: #f7f7f5;
    --mn-border: #e8e8e5;
    --mn-border-strong: #1a1a1a;
    --mn-text: #1a1a1a;
    --mn-text-dim: #6b6b66;
    --mn-text-faint: #a3a39c;
    --mn-accent: #c8462a;
    --mn-serif: Georgia, "Times New Roman", "Songti SC", "SimSun", serif;
    --mn-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--mn-sans);
    color: var(--mn-text);
    background: var(--mn-bg);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

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

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

img {
    max-width: 100%;
    display: block;
}

ul,
ol {
    list-style: none;
}

.mn-container {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 22px;
}

/* ==================== 顶部导航 ==================== */

.mn-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--mn-border);
}

.mn-navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.mn-logo {
    font-family: var(--mn-serif);
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.mn-nav-links {
    display: flex;
    align-items: center;
    gap: 26px;
}

.mn-nav-links a {
    font-size: 0.92rem;
    color: var(--mn-text-dim);
    letter-spacing: 0.5px;
}

.mn-nav-links a:hover {
    color: var(--mn-text);
}

.mn-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mn-menu-toggle span {
    width: 22px;
    height: 1px;
    background: var(--mn-text);
    transition: all 0.3s ease;
}

.mn-menu-toggle.open span:nth-child(1) {
    transform: translateY(3px) rotate(45deg);
}

.mn-menu-toggle.open span:nth-child(2) {
    transform: translateY(-3px) rotate(-45deg);
}

/* ==================== 题头 ==================== */

.mn-hero {
    padding: 88px 0 56px;
    text-align: center;
    border-bottom: 1px solid var(--mn-border);
}

.mn-hero-title {
    font-family: var(--mn-serif);
    font-size: clamp(2rem, 5vw, 2.9rem);
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 14px;
}

.mn-hero-subtitle {
    max-width: 560px;
    margin: 0 auto 30px;
    color: var(--mn-text-dim);
    font-size: 1.02rem;
}

.mn-hero-search {
    display: flex;
    max-width: 460px;
    margin: 0 auto;
    border-bottom: 1px solid var(--mn-border-strong);
    padding-bottom: 10px;
    transition: border-color 0.25s ease;
}

.mn-hero-search:focus-within {
    border-color: var(--mn-accent);
}

.mn-search-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1rem;
    color: var(--mn-text);
    background: transparent;
}

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

.mn-search-btn {
    border: none;
    background: none;
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--mn-text);
    padding: 0 6px;
    transition: color 0.25s ease;
}

.mn-search-btn:hover {
    color: var(--mn-accent);
}

/* ==================== 主布局 ==================== */

.mn-main {
    padding: 56px 0 70px;
}

.mn-main-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 64px;
    align-items: start;
}

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

.mn-list-heading {
    font-family: var(--mn-serif);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 28px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--mn-border-strong);
}

/* ==================== 文章流（细线分隔） ==================== */

.mn-stream {
    display: flex;
    flex-direction: column;
}

.mn-post {
    padding: 34px 0;
    border-bottom: 1px solid var(--mn-border);
    transition: padding-left 0.3s ease;
}

.mn-post:hover {
    padding-left: 10px;
}

.mn-post-link {
    display: block;
}

.mn-post-head {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 10px;
    font-size: 0.84rem;
    color: var(--mn-text-faint);
    letter-spacing: 0.5px;
}

.mn-post-date {
    color: var(--mn-text-faint);
}

.mn-post-cat {
    color: var(--mn-accent);
    font-weight: 600;
}

.mn-post-title {
    font-family: var(--mn-serif);
    font-size: clamp(1.3rem, 2.5vw, 1.65rem);
    font-weight: 700;
    line-height: 1.45;
    margin-bottom: 10px;
}

.mn-post-excerpt {
    color: var(--mn-text-dim);
    font-size: 0.98rem;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.mn-post-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.86rem;
    color: var(--mn-text-faint);
}

.mn-post-arrow {
    color: var(--mn-text);
    transition: color 0.25s ease;
}

.mn-post:hover .mn-post-arrow {
    color: var(--mn-accent);
}

/* ==================== 栏目精选 ==================== */

.mn-cats {
    margin-top: 56px;
}

.mn-cats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.mn-cat-name {
    font-family: var(--mn-serif);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--mn-border);
}

.mn-cat-arrow {
    color: var(--mn-accent);
}

.mn-cat-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
}

.mn-cat-list li a {
    color: var(--mn-text-dim);
    font-size: 0.95rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mn-cat-list li a:hover {
    color: var(--mn-accent);
}

.mn-cat-date {
    flex-shrink: 0;
    font-size: 0.8rem;
    color: var(--mn-text-faint);
}

/* ==================== 分站 ==================== */

.mn-branch {
    background: var(--mn-bg-alt);
    border-top: 1px solid var(--mn-border);
    padding: 44px 0;
}

.mn-branch-title {
    font-family: var(--mn-serif);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.mn-branch-links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 34px;
}

.mn-branch-item {
    font-size: 0.98rem;
    color: var(--mn-text-dim);
    border-bottom: 1px solid transparent;
    padding-bottom: 2px;
}

.mn-branch-item:hover {
    color: var(--mn-accent);
    border-color: var(--mn-accent);
}

/* ==================== 侧边栏 ==================== */

.mn-sidebar {
    display: flex;
    flex-direction: column;
    gap: 40px;
    position: sticky;
    top: 84px;
}

.mn-widget-title {
    font-family: var(--mn-serif);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--mn-border);
}

.mn-about-text {
    font-size: 0.92rem;
    color: var(--mn-text-dim);
    line-height: 1.9;
}

.mn-hot-list li {
    display: grid;
    grid-template-columns: 26px 1fr;
    grid-template-areas:
        "num title"
        "num meta";
    padding: 9px 0;
    border-bottom: 1px solid var(--mn-border);
}

.mn-hot-list li:last-child {
    border-bottom: none;
}

.mn-hot-num {
    grid-area: num;
    font-family: var(--mn-serif);
    font-size: 1.15rem;
    color: var(--mn-text-faint);
}

.mn-hot-title {
    grid-area: title;
    font-size: 0.92rem;
    font-weight: 600;
    line-height: 1.5;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mn-hot-meta {
    grid-area: meta;
    font-size: 0.76rem;
    color: var(--mn-text-faint);
}

.mn-widget-cats li {
    padding: 7px 0;
    border-bottom: 1px solid var(--mn-border);
}

.mn-widget-cats li:last-child {
    border-bottom: none;
}

.mn-widget-cats a {
    color: var(--mn-text-dim);
    font-size: 0.92rem;
}

.mn-widget-cats a:hover {
    color: var(--mn-accent);
}

/* ==================== 页头 ==================== */

.mn-page-head {
    padding: 56px 0 34px;
    border-bottom: 1px solid var(--mn-border);
}

.mn-page-title {
    font-family: var(--mn-serif);
    font-size: clamp(1.5rem, 3.5vw, 2.1rem);
    font-weight: 700;
    margin-bottom: 8px;
}

.mn-page-desc {
    color: var(--mn-text-dim);
    margin-bottom: 14px;
}

.mn-breadcrumb {
    font-size: 0.86rem;
    color: var(--mn-text-faint);
}

.mn-breadcrumb a {
    color: var(--mn-text-dim);
}

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

.mn-breadcrumb-sep {
    margin: 0 10px;
}

.mn-search-box {
    display: flex;
    max-width: 440px;
    border-bottom: 1px solid var(--mn-border-strong);
    padding-bottom: 10px;
    margin-top: 20px;
}

.mn-search-box:focus-within {
    border-color: var(--mn-accent);
}

/* ==================== 空状态 / 按钮 ==================== */

.mn-empty {
    text-align: center;
    padding: 80px 20px;
}

.mn-empty h3 {
    font-family: var(--mn-serif);
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.mn-empty p {
    color: var(--mn-text-dim);
    margin-bottom: 26px;
}

.mn-btn {
    display: inline-block;
    padding: 12px 34px;
    border: 1px solid var(--mn-border-strong);
    font-size: 0.95rem;
    transition: all 0.25s ease;
}

.mn-btn:hover {
    color: #fff;
    background: var(--mn-text);
    border-color: var(--mn-text);
}

/* ==================== 分页 ==================== */

.mn-pagination {
    margin-top: 44px;
    display: flex;
    justify-content: center;
}

.mn-pagination a,
.mn-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    margin: 0 4px;
    font-size: 0.9rem;
    color: var(--mn-text-dim);
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
}

.mn-pagination a:hover {
    color: var(--mn-text);
    border-color: var(--mn-border-strong);
}

.mn-pagination .active {
    color: var(--mn-text);
    font-weight: 700;
    border-color: var(--mn-accent);
}

/* ==================== 详情页 ==================== */

.mn-article {
    padding-bottom: 40px;
    border-bottom: 1px solid var(--mn-border);
}

.mn-article-head {
    text-align: center;
    padding-bottom: 30px;
    margin-bottom: 32px;
    border-bottom: 1px solid var(--mn-border);
}

.mn-article-cat {
    display: inline-block;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--mn-accent);
    letter-spacing: 2px;
    margin-bottom: 14px;
}

.mn-article-title {
    font-family: var(--mn-serif);
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 18px;
}

.mn-article-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 22px;
    font-size: 0.86rem;
    color: var(--mn-text-faint);
}

.mn-article-figure {
    margin-bottom: 28px;
}

.mn-article-figure img {
    width: 100%;
    max-height: 460px;
    object-fit: cover;
}

/* 正文 */
.mn-article-body {
    font-family: var(--mn-serif);
    font-size: 1.08rem;
    line-height: 2;
    color: #2a2a28;
}

.mn-article-body p {
    margin-bottom: 1.4em;
}

.mn-article-body h2,
.mn-article-body h3,
.mn-article-body h4 {
    font-family: var(--mn-sans);
    margin: 1.8em 0 0.9em;
    line-height: 1.4;
}

.mn-article-body img {
    margin: 1.6em auto;
}

.mn-article-body blockquote {
    border-left: 3px solid var(--mn-border-strong);
    padding: 4px 0 4px 24px;
    margin: 1.6em 0;
    color: var(--mn-text-dim);
}

.mn-article-body ul,
.mn-article-body ol {
    padding-left: 1.5em;
    margin-bottom: 1.4em;
}

.mn-article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.6em 0;
}

.mn-article-body th,
.mn-article-body td {
    border: 1px solid var(--mn-border);
    padding: 10px 14px;
    text-align: left;
}

/* 标签与分享 */
.mn-article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    padding-top: 26px;
}

.mn-tags-label {
    font-size: 0.9rem;
    color: var(--mn-text-faint);
    margin-right: 6px;
}

.mn-tag-item {
    font-size: 0.9rem;
    color: var(--mn-accent);
    font-weight: 600;
}

.mn-share-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--mn-border);
    border-radius: 50%;
    background: var(--mn-bg);
    cursor: pointer;
    color: var(--mn-text-dim);
    font-size: 0.98rem;
    transition: all 0.25s ease;
    margin-left: 6px;
}

.mn-share-btn:hover {
    color: #fff;
    background: var(--mn-text);
    border-color: var(--mn-text);
}

/* 上一篇/下一篇 */
.mn-article-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 30px;
}

.mn-nav-item {
    display: block;
    padding: 20px 0;
    border-bottom: 1px solid var(--mn-border);
    transition: border-color 0.25s ease;
}

.mn-nav-item:hover {
    border-color: var(--mn-accent);
}

.mn-nav-next {
    text-align: right;
}

.mn-nav-label {
    display: block;
    font-size: 0.82rem;
    color: var(--mn-text-faint);
    margin-bottom: 8px;
}

.mn-nav-title {
    display: block;
    font-family: var(--mn-serif);
    font-size: 1.05rem;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mn-nav-item:hover .mn-nav-title {
    color: var(--mn-accent);
}

/* 相关推荐 */
.mn-related {
    margin-top: 36px;
}

.mn-related-title {
    font-family: var(--mn-serif);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--mn-border-strong);
}

.mn-related-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid var(--mn-border);
}

.mn-related-name {
    font-size: 0.98rem;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mn-related-name:hover {
    color: var(--mn-accent);
}

.mn-related-meta {
    flex-shrink: 0;
    font-size: 0.8rem;
    color: var(--mn-text-faint);
}

/* ==================== 页脚 ==================== */

.mn-footer {
    background: var(--mn-bg-alt);
    border-top: 1px solid var(--mn-border);
    margin-top: 20px;
}

.mn-footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 40px;
    padding: 48px 0 36px;
    border-bottom: 1px solid var(--mn-border);
}

.mn-footer-title {
    font-family: var(--mn-serif);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.mn-footer-text {
    font-size: 0.88rem;
    color: var(--mn-text-dim);
    line-height: 1.9;
}

.mn-footer-links li {
    margin-bottom: 9px;
}

.mn-footer-links a {
    color: var(--mn-text-dim);
    font-size: 0.9rem;
}

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

.mn-footer-bottom {
    padding: 22px 0;
    text-align: center;
    font-size: 0.84rem;
    color: var(--mn-text-faint);
}

.mn-footer-bottom p + p {
    margin-top: 4px;
}

/* ==================== 回到顶部 ==================== */

.mn-back-top {
    position: fixed;
    right: 24px;
    bottom: 30px;
    width: 44px;
    height: 44px;
    border: 1px solid var(--mn-border);
    border-radius: 50%;
    background: var(--mn-bg);
    cursor: pointer;
    color: var(--mn-text);
    font-size: 0.95rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all 0.35s ease;
    z-index: 90;
}

.mn-back-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mn-back-top:hover {
    background: var(--mn-text);
    color: #fff;
    border-color: var(--mn-text);
}

/* ==================== 404 ==================== */

.mn-404 {
    text-align: center;
    padding: 100px 20px;
}

.mn-404-code {
    font-family: var(--mn-serif);
    font-size: clamp(6rem, 14vw, 9rem);
    font-weight: 700;
    line-height: 1;
    color: var(--mn-border);
    margin-bottom: 10px;
}

.mn-404-title {
    font-family: var(--mn-serif);
    font-size: 1.6rem;
    margin-bottom: 10px;
}

.mn-404-text {
    color: var(--mn-text-dim);
    margin-bottom: 30px;
}

/* ==================== 响应式 ==================== */

@media (max-width: 992px) {
    .mn-main-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .mn-sidebar {
        position: static;
    }

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

@media (max-width: 768px) {
    .mn-navbar {
        height: 56px;
    }

    .mn-menu-toggle {
        display: flex;
    }

    .mn-nav {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        background: var(--mn-bg);
        padding: 10px 22px 22px;
        transform: translateY(-120%);
        transition: transform 0.35s ease;
        box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
        z-index: 99;
        border-bottom: 1px solid var(--mn-border);
    }

    .mn-nav.open {
        transform: translateY(0);
    }

    .mn-nav-links {
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
    }

    .mn-nav-links a {
        padding: 12px 4px;
    }

    .mn-hero {
        padding: 60px 0 44px;
    }

    .mn-main {
        padding: 40px 0 54px;
    }

    .mn-cats-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .mn-article-nav {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .mn-footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}