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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: #2c3e50;
    background: #f4f5f7;
}

a {
    color: #c0392b;
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #e74c3c;
}

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

/* ===== Layout ===== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.site-main {
    padding: 28px 0 0;
}

.layout-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.main-content {
    flex: 1;
    min-width: 0;
}

/* No-sidebar pages: centered, readable width */
.layout-container.no-sidebar {
    justify-content: center;
}

.layout-container.no-sidebar .main-content {
    max-width: 780px;
}

/* ===== Header ===== */
.site-header {
    background: #fff;
    border-bottom: 1px solid #e8e8e8;
    padding: 14px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title {
    font-size: 1.4em;
    font-weight: 800;
    color: #c0392b;
    letter-spacing: -0.5px;
}

.site-title:hover {
    color: #e74c3c;
    text-decoration: none;
}

.site-nav a {
    margin-left: 20px;
    color: #666;
    font-size: 0.9em;
    font-weight: 500;
}

.site-nav a:hover {
    color: #c0392b;
    text-decoration: none;
}

/* ===== Post Detail Page ===== */
.post {
    background: #fff;
    border-radius: 10px;
    padding: 32px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    margin-bottom: 16px;
}

.post-header {
    margin-bottom: 28px;
}

.post-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.post-nav-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    max-width: 45%;
    padding: 10px 14px;
    border: 1px solid #eee;
    border-radius: 8px;
    transition: all 0.2s;
}

a.post-nav-item:hover {
    border-color: #c0392b;
    background: #fdf8f6;
    text-decoration: none;
}

.post-nav-next {
    text-align: right;
    margin-left: auto;
}

.post-nav-label {
    font-size: 0.78em;
    color: #aaa;
    font-weight: 500;
}

.post-nav-title {
    font-size: 0.9em;
    color: #333;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

a.post-nav-item:hover .post-nav-title {
    color: #c0392b;
}

.post-nav-disabled {
    cursor: default;
    background: #fafafa;
}

.post-nav-disabled .post-nav-title {
    color: #ccc;
    font-style: italic;
}

.post-title {
    font-size: 1.75em;
    margin-bottom: 10px;
    line-height: 1.35;
    color: #1a1a1a;
    font-weight: 700;
}

.post-meta {
    color: #999;
    font-size: 0.88em;
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}

.post-tags a,
.post-card-tags a {
    display: inline-block;
    background: #f0f0f0;
    color: #888;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.8em;
    transition: all 0.2s;
}

.post-tags a:hover,
.post-card-tags a:hover {
    background: #c0392b;
    color: #fff;
    text-decoration: none;
}

.post-banner {
    margin-bottom: 28px;
}

.post-banner img {
    width: 100%;
    max-height: 360px;
    object-fit: cover;
    border-radius: 8px;
}

/* ===== Post Content Typography ===== */
.post-content {
    line-height: 1.85;
    font-size: 1.02em;
}

.post-content .green { color: #22a45d; font-weight: bold; }
.post-content .red { color: #e74c3c; font-weight: bold; }
.post-content mark { background: #fff9c4; padding: 2px 4px; border-radius: 3px; }

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
    margin-top: 1.6em;
    margin-bottom: 0.5em;
    line-height: 1.35;
    color: #1a1a1a;
}

.post-content h2 { font-size: 1.45em; border-bottom: 1px solid #eee; padding-bottom: 6px; }
.post-content h3 { font-size: 1.2em; }

.post-content p {
    margin-bottom: 1em;
}

.post-content ul,
.post-content ol {
    margin-bottom: 1em;
    padding-left: 2em;
}

.post-content blockquote {
    border-left: 3px solid #c0392b;
    padding: 0.6em 1.2em;
    margin: 1em 0;
    background: #fdf8f6;
    color: #555;
    border-radius: 0 4px 4px 0;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1em;
    font-size: 0.95em;
}

.post-content th,
.post-content td {
    border: 1px solid #e0e0e0;
    padding: 8px 12px;
    text-align: left;
}

.post-content th {
    background: #f8f8f8;
    font-weight: 600;
}

/* ===== Code Highlighting ===== */
.post-content pre {
    background: #fdf0ef;
    color: #5c3a3a;
    border-radius: 6px;
    padding: 16px;
    overflow-x: auto;
    margin-bottom: 1em;
    font-size: 0.88em;
    line-height: 1.5;
    border: 1px solid #f0d0d0;
}

.post-content code {
    background: #fdf0ef;
    padding: 2px 5px;
    border-radius: 3px;
    font-size: 0.88em;
    color: #b04050;
}

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

.highlight { background: transparent; }
.highlight .hll { background-color: #f5d5d3 }
.highlight .c { color: #9a7a7a }
.highlight .k { color: #b04050; font-weight: bold }
.highlight .o { color: #c06070 }
.highlight .cm { color: #9a7a7a }
.highlight .cp { color: #9a7a7a }
.highlight .c1 { color: #9a7a7a }
.highlight .cs { color: #9a7a7a }
.highlight .gd { color: #c06070 }
.highlight .ge { font-style: italic }
.highlight .gh { color: #8b5e5e }
.highlight .gi { color: #7a6a5a }
.highlight .gp { color: #9a7a7a }
.highlight .gs { font-weight: bold }
.highlight .gu { color: #8b5e5e }
.highlight .kc { color: #b04050 }
.highlight .kd { color: #b04050 }
.highlight .kn { color: #c06070 }
.highlight .kp { color: #b04050 }
.highlight .kr { color: #b04050 }
.highlight .kt { color: #b04050 }
.highlight .m { color: #a06070 }
.highlight .s { color: #8a6050 }
.highlight .na { color: #8b5e5e }
.highlight .nb { color: #5c3a3a }
.highlight .nc { color: #8b5e5e; font-weight: bold }
.highlight .nf { color: #8b5e5e }
.highlight .nn { color: #5c3a3a }
.highlight .nt { color: #c06070 }
.highlight .nv { color: #5c3a3a }
.highlight .s1, .highlight .s2, .highlight .se { color: #8a6050 }
.highlight .si { color: #8a6050 }
.highlight .mi { color: #a06070 }

/* ===== Post Cards (List View) ===== */
.post-card {
    display: flex;
    align-items: center;
    background: #fff;
    border-radius: 10px;
    padding: 24px 24px 24px 18px;
    margin-bottom: 18px;
    gap: 24px;
    transition: box-shadow 0.2s, transform 0.15s;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.post-card:hover {
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
    transform: translateY(-1px);
}

.post-card-thumb {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: 6px;
    overflow: hidden;
    background: #f0f0f0;
    border: 1px solid #e0e0e0;
}

.post-card-thumb a {
    display: block;
    width: 100%;
    height: 100%;
}

.post-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 6px;
}

.post-card-body {
    flex: 1;
    min-width: 0;
}

.post-card-title-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
}

.post-card-date {
    color: #aaa;
    font-size: 0.82em;
    font-weight: 500;
    white-space: nowrap;
    flex-shrink: 0;
}

.post-card-title {
    font-size: 1.2em;
    margin: 0;
    line-height: 1.4;
}

.post-card-title a {
    color: #1a1a1a;
    font-weight: 600;
}

.post-card-title a:hover {
    color: #c0392b;
    text-decoration: none;
}

.post-card-desc {
    color: #777;
    font-size: 0.88em;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-card-tags {
    margin-top: 8px;
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin: 36px 0;
}

.pagination-arrow {
    padding: 6px 14px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 6px;
    color: #666;
    font-size: 0.88em;
    transition: all 0.2s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    margin: 0 4px;
}

.pagination-arrow:hover {
    background: #c0392b;
    color: #fff;
    border-color: #c0392b;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(192,57,43,0.2);
}

.pagination-arrow.disabled {
    color: #ccc;
    border-color: #eee;
    cursor: default;
    box-shadow: none;
}

.pagination-pages {
    display: flex;
    gap: 4px;
    align-items: center;
}

.pagination-page {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 6px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
    color: #666;
    font-size: 0.88em;
    transition: all 0.2s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

a.pagination-page:hover {
    background: #c0392b;
    color: #fff;
    border-color: #c0392b;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(192,57,43,0.2);
}

.pagination-page.active {
    background: #c0392b;
    color: #fff;
    border-color: #c0392b;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(192,57,43,0.2);
}

.pagination-ellipsis {
    color: #aaa;
    padding: 0 4px;
    font-size: 0.88em;
    letter-spacing: 2px;
}

/* ===== Tags Page ===== */
.tags-page,
.tag-page,
.home-page {
    background: #fff;
    border-radius: 10px;
    padding: 28px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    margin-bottom: 16px;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-item {
    display: inline-block;
    padding: 8px 18px;
    background: #f8f8f8;
    border: 1px solid #e8e8e8;
    border-radius: 20px;
    color: #555;
    font-size: 0.9em;
    transition: all 0.2s;
}

.tag-item:hover {
    background: #c0392b;
    color: #fff;
    border-color: #c0392b;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(192,57,43,0.2);
}

.tag-count {
    color: #bbb;
    font-size: 0.82em;
}

.tag-item:hover .tag-count {
    color: rgba(255,255,255,0.8);
}

/* ===== Page Title ===== */
.page-title {
    font-size: 1.4em;
    margin-bottom: 24px;
    padding-bottom: 10px;
    border-bottom: 2px solid #c0392b;
    color: #1a1a1a;
    font-weight: 700;
}

/* ===== Sidebar ===== */
.sidebar {
    width: 300px;
    flex-shrink: 0;
}

.sidebar-widget {
    background: #fff;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.sidebar-widget-title {
    font-size: 0.95em;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 2px solid #c0392b;
}

/* About widget */
.sidebar-about-text {
    color: #666;
    font-size: 0.88em;
    line-height: 1.6;
}

/* Recent posts widget */
.sidebar-recent-posts {
    list-style: none;
}

.sidebar-recent-posts li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 8px;
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
}

.sidebar-recent-posts li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.sidebar-recent-posts li:first-child {
    padding-top: 0;
}

.sidebar-recent-posts li a {
    color: #333;
    font-size: 0.88em;
    font-weight: 500;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-recent-posts li a:hover {
    color: #c0392b;
}

.sidebar-recent-posts li time {
    color: #aaa;
    font-size: 0.78em;
    white-space: nowrap;
    flex-shrink: 0;
}

/* Tag cloud widget */
.sidebar-tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.sidebar-tag {
    display: inline-block;
    padding: 3px 10px;
    background: #f5f5f5;
    border-radius: 14px;
    color: #666;
    font-size: 0.8em;
    transition: all 0.2s;
}

.sidebar-tag:hover {
    background: #c0392b;
    color: #fff;
    text-decoration: none;
}

/* Archive widget */
.sidebar-archive-list {
    list-style: none;
}

.sidebar-archive-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    border-bottom: 1px solid #f0f0f0;
}

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

.sidebar-archive-list li a {
    color: #333;
    font-size: 0.88em;
    font-weight: 500;
}

.sidebar-archive-list li a:hover {
    color: #c0392b;
}

.sidebar-archive-count {
    color: #aaa;
    font-size: 0.78em;
}

/* Social media widget */
.sidebar-wechat {
    text-align: center;
    margin-bottom: 14px;
}

.sidebar-wechat img {
    width: 150px;
    border-radius: 6px;
}

.sidebar-wechat p {
    color: #888;
    font-size: 0.82em;
    margin-top: 6px;
}

.sidebar-social-links {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.sidebar-social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #f5f5f5;
    transition: all 0.2s;
}

.sidebar-social-links a:hover {
    background: #e8e8e8;
}

.sidebar-social-links img {
    width: 22px;
    height: 22px;
    border-radius: 4px;
}

/* ===== Comments ===== */
#comments {
    background: #fff;
    border-radius: 10px;
    padding: 24px;
    margin-top: 16px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

#comments h2,
#comments h3 {
    font-size: 1.1em;
    color: #1a1a1a;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid #c0392b;
}

#comments input[type="text"],
#comments input[type="email"],
#comments textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 0.9em;
    font-family: inherit;
    color: #333;
    background: #fafafa;
    transition: border-color 0.2s;
    margin-bottom: 10px;
}

#comments input:focus,
#comments textarea:focus {
    outline: none;
    border-color: #c0392b;
    background: #fff;
}

#comments textarea {
    min-height: 100px;
    resize: vertical;
}

#comments button,
#comments input[type="submit"] {
    display: inline-block;
    padding: 8px 20px;
    background: #c0392b;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 0.9em;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

#comments button:hover,
#comments input[type="submit"]:hover {
    background: #e74c3c;
}

#comments .comment-item,
#comments [class*="comment"] {
    padding: 14px 0;
    border-bottom: 1px solid #f0f0f0;
}

#comments .comment-item:last-child,
#comments [class*="comment"]:last-child {
    border-bottom: none;
}

#comments .comment-author,
#comments [class*="author"] {
    font-weight: 600;
    color: #333;
    font-size: 0.92em;
}

#comments .comment-time,
#comments [class*="time"],
#comments [class*="date"] {
    color: #aaa;
    font-size: 0.8em;
    margin-left: 8px;
}

#comments .comment-content,
#comments .comment-body,
#comments [class*="content"] {
    color: #555;
    font-size: 0.9em;
    line-height: 1.6;
    margin-top: 6px;
}

/* ===== Archive Page ===== */
.archive-page {
    background: #fff;
    border-radius: 10px;
    padding: 28px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    margin-bottom: 16px;
}

.archive-year {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid #f0f0f0;
}

.archive-year:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.archive-year-title {
    font-size: 1.1em;
    font-weight: 700;
    margin-bottom: 10px;
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.archive-year-title a {
    color: #1a1a1a;
}

.archive-year-title a:hover {
    color: #c0392b;
}

.archive-count {
    color: #aaa;
    font-size: 0.8em;
    font-weight: 400;
}

.archive-months {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

/* ===== Footer ===== */
.site-footer {
    background: #fff;
    border-top: 1px solid #e8e8e8;
    padding: 24px 0;
    margin-top: 48px;
    text-align: center;
    color: #bbb;
    font-size: 0.82em;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .layout-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        position: static;
        order: 1;
    }

    .main-content {
        order: 0;
    }

    .site-header .container {
        flex-direction: column;
        gap: 8px;
    }

    .site-nav a {
        margin-left: 12px;
        margin-right: 12px;
    }

    .post {
        padding: 20px;
    }

    .post-title {
        font-size: 1.35em;
    }

    .post-card {
        padding: 14px;
        gap: 12px;
    }

    .post-card-thumb {
        width: 60px;
        height: 60px;
    }

    .post-card-desc {
        display: none;
    }

    .container,
    .layout-container {
        padding: 0 16px;
    }
}

@media (max-width: 480px) {
    .sidebar-widget {
        padding: 16px;
    }

    .site-main {
        padding: 16px 0 0;
    }
}