/* ============ Modern 简约主题 ============ */
:root {
    --bg: #fafafa;
    --card: #fff;
    --text: #1a1a1a;
    --muted: #767676;
    --accent: #e74c3c;
    --border: #eaeaea;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #151515;
        --card: #1e1e1e;
        --text: #e8e8e8;
        --muted: #9a9a9a;
        --accent: #ff6b5e;
        --border: #2c2c2c;
    }
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.8; }
a { color: var(--accent); text-decoration: none; }
a:hover { opacity: 0.8; }
/* 页面统一宽度：页头/页脚与主体对齐（默认视图的 .container 也落在这里） */
.container, .m-container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

.m-header { border-bottom: 1px solid var(--border); background: var(--card); }
.m-header .m-container { display: flex; justify-content: space-between; align-items: center; padding: 18px 20px; }
.m-logo { font-size: 22px; font-weight: 800; letter-spacing: 1px; color: var(--text); }
.m-nav { display: flex; gap: 18px; font-size: 14px; align-items: center; }
.m-nav a.active { font-weight: 700; }
.m-link-btn { background: none; border: none; color: var(--accent); font-size: 14px; cursor: pointer; padding: 0; }
.m-search input { padding: 7px 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font-size: 14px; width: 140px; }
.inline-form { display: inline; }

.main-layout { display: flex; gap: 32px; align-items: flex-start; max-width: 1080px; margin: 0 auto; padding: 36px 20px; }
.main-layout .content { flex: 1; min-width: 0; max-width: 720px; }
.main-layout .sidebar { width: 300px; flex-shrink: 0; }

.post-card, .post-full, .comments-section { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 26px 30px; margin-bottom: 22px; }
.post-card.sticky { box-shadow: inset 3px 0 0 var(--accent); }
.post-title { font-size: 20px; margin-bottom: 8px; line-height: 1.45; }
.post-card .post-title a { color: var(--text); }
.badge { background: var(--accent); color: #fff; font-size: 11px; padding: 2px 7px; border-radius: 3px; margin-right: 6px; vertical-align: 2px; }
.post-meta { color: var(--muted); font-size: 13px; margin-bottom: 12px; }
.post-excerpt { color: var(--muted); }
.post-footer { margin-top: 12px; display: flex; gap: 12px; flex-wrap: wrap; font-size: 14px; }
.read-more { font-weight: 600; }

.post-full .post-title { font-size: 28px; }
.post-content { margin-top: 14px; }
.post-content img { max-width: 100%; border-radius: 8px; }
.post-content pre { background: #0d1117; color: #c9d1d9; padding: 16px; border-radius: 8px; overflow-x: auto; margin: 14px 0; }
.post-content code { background: rgba(128,128,128,.15); padding: 2px 6px; border-radius: 4px; font-size: 14px; }
.post-content pre code { background: none; padding: 0; }
.post-content blockquote { border-left: 3px solid var(--accent); padding-left: 16px; color: var(--muted); margin: 14px 0; }
.post-content h1, .post-content h2, .post-content h3 { margin: 20px 0 8px; }

.post-cover { margin: -26px -30px 18px; border-radius: 12px 12px 0 0; overflow: hidden; }
.post-cover img { width: 100%; display: block; max-height: 380px; object-fit: cover; }

.tag-link { color: var(--accent); font-size: 14px; margin-right: 8px; }

.comments-section { margin-top: 8px; }
.section-title { font-size: 17px; margin-bottom: 14px; }
.comment { padding: 12px 0; border-bottom: 1px solid var(--border); }
.comment:last-of-type { border-bottom: none; }
.comment-head { font-size: 14px; margin-bottom: 4px; }
.comment-time { color: var(--muted); font-size: 13px; }
.comment-body { color: var(--text); font-size: 15px; }
.comment-form { margin-top: 14px; }
.form-row { margin-bottom: 12px; }
.form-row label { display: block; font-size: 14px; margin-bottom: 4px; color: var(--muted); }
.form-row input, .form-row textarea { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font-size: 15px; font-family: inherit; }
.honeypot { position: absolute; left: -9999px; opacity: 0; }
.error { color: var(--accent); font-size: 13px; }
.btn { background: var(--accent); color: #fff; border: none; padding: 10px 24px; border-radius: 8px; font-size: 15px; cursor: pointer; }
.alert { padding: 12px 18px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: rgba(46,160,67,.12); color: #2ea043; }
.alert-error { background: rgba(248,81,73,.12); color: #f85149; }
.empty { color: var(--muted); text-align: center; padding: 40px 0; }

.list-title { font-size: 24px; margin-bottom: 20px; }

.archive-year { font-size: 16px; margin: 16px 0 6px; }
.archive-list { list-style: none; }
.archive-posts { margin: 4px 0 12px 22px; }
.archive-posts time { color: var(--muted); font-size: 13px; }

.pagination { margin: 16px 0; }
.pagination-links { display: flex; gap: 8px; flex-wrap: wrap; }
.pagination-links a, .pagination-links .current, .pagination-links .disabled { padding: 6px 14px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; background: var(--card); color: var(--text); }
.pagination-links .current { background: var(--accent); color: #fff; border-color: var(--accent); }
.pagination-links .disabled { color: var(--muted); }

.m-footer { border-top: 1px solid var(--border); padding: 26px 0 40px; margin-top: 30px; text-align: center; color: var(--muted); font-size: 13px; }

.tag-cloud.big { line-height: 2.4; }
.links-list { list-style: none; }
.links-list li { padding: 6px 0; }
.link-note { color: var(--muted); font-size: 14px; }

.auth-layout { display: flex; justify-content: center; padding: 50px 20px; }
.auth-box { width: 100%; max-width: 420px; background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 30px; }
.auth-alt { margin-top: 14px; font-size: 14px; color: var(--muted); text-align: center; }
.search-form { margin-bottom: 16px; display: flex; gap: 8px; }
.search-form input { flex: 1; padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font-size: 15px; }

/* ============ 侧边栏 ============ */
.sidebar { position: sticky; top: 20px; }
.widget { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; margin-bottom: 18px; }
.widget-title { font-size: 15px; margin-bottom: 10px; padding-bottom: 8px; border-bottom: 2px solid var(--accent); }
.widget-list { list-style: none; }
.widget-list li { font-size: 14px; padding: 5px 0; border-bottom: 1px solid var(--border); }

/* 社交账号：横向胶囊列表 */
.social-links { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.social-links li { font-size: 12px; background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: 4px 10px; }
.widget-list li:last-child { border-bottom: none; }
.count { color: var(--muted); font-size: 13px; }
.tag-cloud { line-height: 2; }
.tag-cloud a { display: inline-block; }
.tag-cloud.big { line-height: 2.4; }

/* ============ 顶栏搜索（默认 header partial） ============ */
.site-search input { padding: 7px 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font-size: 14px; width: 160px; }
.link-btn { background: none; border: none; color: var(--accent); font-size: 15px; cursor: pointer; padding: 0; }

/* ============ 文章正文补充 ============ */
.post-tags { margin-top: 16px; }
.post-content ul, .post-content ol { padding-left: 24px; margin: 8px 0; }
.post-content h4, .post-content h5, .post-content h6 { margin: 16px 0 6px; }
.post-content table { border-collapse: collapse; width: 100%; margin: 12px 0; }
.post-content th, .post-content td { border: 1px solid var(--border); padding: 6px 10px; }
.post-content hr { border: none; border-top: 1px solid var(--border); margin: 18px 0; }

/* ============ 个人中心 ============ */
.profile-box { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 24px 28px; margin-bottom: 20px; }
.profile-box p { margin-bottom: 8px; }

/* ============ 按钮变体 ============ */
.btn-primary { background: var(--accent); }
.btn:hover { opacity: 0.9; }

/* ============ 会员/支付 ============ */
.plans-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.plan-card .plan-price { font-size: 26px; font-weight: 800; color: var(--accent); }
.paid-teaser { background: rgba(248,81,73,.08); border: 1px dashed var(--accent); border-radius: 8px; padding: 12px 16px; color: var(--muted); font-size: 14px; margin: 12px 0; }

/* ============ 移动端适配 ============ */
@media (max-width: 768px) {
    .m-header .m-container { flex-direction: column; align-items: flex-start; gap: 12px; padding: 16px 20px; }
    .m-nav { flex-wrap: wrap; gap: 12px; width: 100%; }
    .m-search { flex: 1; min-width: 100%; }
    .m-search input { width: 100%; }
    .main-layout { flex-direction: column; padding: 24px 16px; }
    .main-layout .content { max-width: 100%; }
    .main-layout .sidebar { width: 100%; }
    .post-card, .post-full, .comments-section { padding: 20px; }
    .post-cover { margin: -20px -20px 16px; }
    .post-full .post-title { font-size: 24px; }
    .auth-box { padding: 24px 20px; }
    .pagination-links { gap: 6px; }
    .pagination-links a, .pagination-links .current, .pagination-links .disabled { padding: 5px 10px; }
}

/* TOC */
.toc { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 14px 18px; margin: 0 0 18px; font-size: 14px; }
.toc summary { cursor: pointer; font-weight: 600; margin-bottom: 6px; }
.toc-list { list-style: none; }
.toc-list li { padding: 3px 0; }
.toc-list a { color: var(--muted); }
.toc-list a:hover { color: var(--accent); }
.toc-level-3 { padding-left: 14px; }
.toc-level-4, .toc-level-5, .toc-level-6 { padding-left: 28px; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* Paywall */
.paywall { border: 1px solid var(--border); border-radius: 12px; padding: 28px 22px; background: var(--bg); text-align: center; }
.paywall-cover img { max-width: 100%; border-radius: 10px; margin-bottom: 16px; }
.paywall-title { font-size: 22px; margin: 0 0 10px; }
.paywall-excerpt { color: var(--muted); font-size: 14px; margin: 0 0 16px; }
.paywall-price { font-size: 24px; font-weight: 800; color: var(--accent); margin: 0 0 8px; }
.paywall-hint { color: var(--muted); font-size: 13px; margin: 0 0 18px; }
.paywall-actions .btn { margin: 0 6px; }
.paid-teaser { border: 1px dashed var(--border); background: var(--bg-muted, #f6f6f6); color: var(--muted); border-radius: 10px; padding: 14px 16px; margin: 14px 0; font-size: 14px; }
.paid-teaser .btn { margin-left: 8px; }

/* 已解锁的付费内容块 */
.paid-content { border: 1px solid var(--border); border-left: 4px solid var(--accent); background: var(--bg); border-radius: 10px; padding: 14px 16px; margin: 14px 0; }
.paid-content-label { font-size: 12px; color: var(--accent); font-weight: 600; margin-bottom: 6px; }

/* 分类页介绍区 */
.category-intro { display: flex; gap: 14px; align-items: flex-start; background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; margin-bottom: 18px; }
.category-cover { width: 128px; height: 84px; object-fit: cover; border-radius: 8px; flex-shrink: 0; }
.category-description { margin: 0 0 6px; font-size: 14px; color: var(--muted); line-height: 1.7; }
.category-meta { margin: 0; font-size: 12px; color: var(--muted); }
