/* ============================================================
   博客 / 文章 / 案例页 · MiMo 风格（与首页 styles.css 统一）
   依赖 styles.css 的变量：--sans / --serif / 颜色 / --ease
   ============================================================ */

/* ---------- 页面骨架 ---------- */
.blog-page {
  width: min(880px, calc(100% - 56px));
  margin: 0 auto;
  padding: 64px 0 96px;
  position: relative;
  z-index: 1;
}

/* ---------- 博客头部（居中） ---------- */
.blog-head { text-align: center; margin-bottom: 48px; }
.blog-head .section-label { text-align: center; margin-bottom: 10px; }
.blog-head h1 {
  margin: 0 0 12px;
  font: 400 clamp(30px, 4vw, 40px)/1.25 var(--font-main);
  letter-spacing: -.01em;
  color: var(--text-primary);
}
.blog-head > p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.8;
  max-width: 560px;
  margin: 0 auto;
}
.blog-count {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 13px;
}

/* ---------- 地区导航 ---------- */
.city-nav {
  margin: 0 0 36px;
  padding: 0 0 28px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.city-nav-label {
  margin: 0 0 12px;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .06em;
}
.city-nav-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; }
.city-nav-list a {
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13.5px;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border);
  transition: background .2s, color .2s, border-color .2s;
}
.city-nav-list a:hover {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: #fff;
}

/* ---------- 文章列表 ---------- */
.blog-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.blog-item {
  position: relative;
  display: block;
  padding: 26px 28px;
  border-radius: var(--radius-lg);
  border: none;
  background: var(--bg-card);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.blog-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .08);
}
.blog-item time {
  display: block;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 400;
}
.blog-item h2 {
  margin: 10px 0 8px;
  color: var(--text-primary);
  font: 400 21px/1.45 var(--font-main);
  letter-spacing: -.01em;
  transition: opacity .2s;
}
.blog-item:hover h2 { opacity: .7; }
.blog-item p { color: var(--text-secondary); font-size: 14.5px; line-height: 1.8; margin: 0 0 16px; }
.blog-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-primary);
  font-size: 13.5px;
  font-weight: 400;
}
.blog-more::after { content: "→"; transition: transform .2s; }
.blog-item:hover .blog-more::after { transform: translateX(4px); }

/* ---------- 文章详情 ---------- */
.blog-page.article-page { width: min(760px, calc(100% - 56px)); }

/* 面包屑 */
.article-crumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
  color: var(--text-muted);
  font-size: 13px;
}
.article-crumb a { color: var(--text-secondary); transition: color .2s; }
.article-crumb a:hover { color: var(--text-primary); }
.article-crumb span { color: var(--border-strong); }
.article-crumb em { font-style: normal; color: var(--text-muted); }

.article-page h1 {
  margin: 0 0 16px;
  font: 400 clamp(26px, 3.6vw, 38px)/1.3 var(--font-main);
  letter-spacing: -.015em;
  color: var(--text-primary);
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 10px;
  color: var(--text-muted);
  font-size: 13.5px;
}
.article-meta time { color: var(--text-secondary); font-size: 13.5px; }

.article-summary {
  margin: 26px 0 36px;
  padding: 18px 22px;
  border-left: none;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 15.5px;
  line-height: 1.9;
}

/* ---------- 正文排版 ---------- */
.article-body {
  color: var(--text-secondary);
  font-size: 16.5px;
  line-height: 1.9;
  margin-top: 4px;
}
.article-body p { margin: 0 0 22px; }

.article-body h2 {
  font: 400 24px/1.4 var(--font-main);
  color: var(--text-primary);
  letter-spacing: -.01em;
  margin: 48px 0 16px;
  padding-left: 0;
  border-left: none;
}
.article-body h3 {
  font: 400 19px/1.5 var(--font-main);
  color: var(--text-primary);
  letter-spacing: -.01em;
  margin: 32px 0 12px;
}
.article-body strong { color: var(--text-primary); font-weight: 500; }
.article-body a {
  color: var(--text-primary);
  text-decoration: underline;
  text-decoration-color: var(--border-strong);
  text-underline-offset: 4px;
  transition: text-decoration-color .2s;
}
.article-body a:hover { text-decoration-color: var(--text-primary); }

.article-body ul, .article-body ol { margin: 0 0 24px; padding: 0; list-style: none; }
.article-body li { position: relative; padding-left: 22px; margin: 9px 0; }
.article-body ul li::before {
  content: "";
  position: absolute;
  left: 2px; top: 13px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--text-muted);
}
.article-body ol { counter-reset: li; }
.article-body ol li { counter-increment: li; }
.article-body ol li::before {
  content: counter(li) ".";
  position: absolute;
  left: 0; top: 0;
  color: var(--text-muted);
  font-size: 14px;
}

.article-body blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  border-left: none;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 15.5px;
  line-height: 1.9;
}
.article-body blockquote p:last-child { margin-bottom: 0; }

.article-body code {
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text-primary);
  font: 13.5px "SFMono-Regular", Consolas, "Courier New", monospace;
}
.article-body hr {
  border: 0;
  height: 1px;
  margin: 40px 0;
  background: var(--border);
}
.article-body img {
  max-width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

/* ---------- 作者信息块 ---------- */
.author-box {
  margin: 48px 0 0;
  padding: 26px 28px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: none;
}
.author-name {
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 10px;
}
.author-name small {
  margin-left: 8px;
  color: var(--text-muted);
  font-size: 12.5px;
  font-weight: 400;
}
.author-box p {
  margin: 0 0 16px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.85;
}
.author-links { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 !important; }
.author-links a {
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 13px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-primary);
  text-decoration: none;
  transition: background .2s, border-color .2s;
}
.author-links a:hover { background: var(--text-primary); border-color: var(--text-primary); color: #fff; }

/* ---------- 相关文章 ---------- */
.related-posts {
  margin: 20px 0 0;
  padding: 26px 28px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
}
.related-posts h2 {
  margin: 0 0 14px;
  color: var(--text-primary);
  font: 500 15px/1.4 var(--font-main);
  letter-spacing: .01em;
}
.related-posts ul { list-style: none; margin: 0; padding: 0; }
.related-posts li {
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
}
.related-posts li:last-child { border-bottom: 0; }
.related-posts li a {
  color: var(--text-secondary);
  font-size: 14.5px;
  line-height: 1.7;
  transition: color .2s;
}
.related-posts li a:hover { color: var(--text-primary); }
.related-more { margin: 14px 0 0 !important; font-size: 13.5px; }
.related-more a { color: var(--text-primary); font-weight: 400; }

/* ---------- 空状态 ---------- */
.blog-empty {
  text-align: center;
  color: var(--text-secondary);
  padding: 72px 0;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
}
.blog-empty a { color: var(--text-primary); text-decoration: underline; }

/* ============================================================
   客户案例页
   ============================================================ */
.blog-page.cases-page { width: min(1080px, calc(100% - 56px)); padding: 64px 0 96px; }
.cases-page .blog-head { max-width: 760px; margin: 0 auto 48px; }
.cases-page .blog-head h1 { font-size: clamp(30px, 4vw, 44px); }

.case-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 20px; }
.case-item {
  position: relative;
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 28px;
  padding: 36px 32px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.case-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .08);
}

.case-index {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}
.case-index span {
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
}
.case-index small {
  color: var(--text-muted);
  font-size: 10px;
  letter-spacing: .14em;
  writing-mode: vertical-rl;
  text-transform: uppercase;
}

.case-body { min-width: 0; }
.case-industry {
  display: inline-block;
  margin-bottom: 14px;
  padding: 5px 13px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-secondary);
  font-size: 12.5px;
}
.case-item h2 {
  margin: 0 0 22px;
  color: var(--text-primary);
  font: 400 clamp(20px, 2.4vw, 26px)/1.4 var(--font-main);
  letter-spacing: -.01em;
  max-width: 720px;
}

.case-blocks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 0; }
.case-block {
  padding: 20px 22px;
  border-radius: var(--radius-md);
  background: var(--bg);
  border: none;
  transition: background .2s;
}
.case-block:hover { background: #fff; }
.case-block-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 9px;
}
.case-block-label i {
  width: 5px; height: 5px;
  border-radius: 50%;
  flex: none;
  background: var(--text-primary);
}
.case-block p { margin: 0; color: var(--text-secondary); font-size: 14.5px; line-height: 1.85; }

.case-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.case-metrics span {
  padding: 6px 13px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 12.5px;
  font-weight: 400;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .blog-page.cases-page { width: calc(100% - 48px); }
  .case-item { grid-template-columns: 1fr; gap: 12px; padding: 28px 24px; }
  .case-index { flex-direction: row; align-items: center; gap: 6px; }
  .case-index small { writing-mode: horizontal-tb; }
  .case-blocks { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .blog-page { width: calc(100% - 32px); padding: 40px 0 72px; }
  .blog-head { margin-bottom: 32px; }
  .blog-head h1 { font-size: 26px; }
  .blog-item { padding: 20px 20px; border-radius: var(--radius-md); }
  .blog-item h2 { font-size: 18px; }
  .blog-item p { font-size: 14px; }

  .blog-page.article-page { width: calc(100% - 32px); }
  .article-page h1 { font-size: 24px; }
  .article-body { font-size: 15.5px; line-height: 1.85; }
  .article-body h2 { font-size: 21px; margin-top: 36px; }
  .article-body h3 { font-size: 17.5px; }
  .article-summary { margin: 20px 0 28px; font-size: 14.5px; padding: 16px 18px; }
  .author-box, .related-posts { padding: 20px; }

  .blog-page.cases-page { width: calc(100% - 32px); padding: 40px 0 72px; }
  .case-item { padding: 22px 20px; }
  .case-item h2 { font-size: 19px; }
  .case-block { padding: 16px 18px; }
  .case-block p { font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .blog-item, .case-item, .city-nav-list a {
    transition: none !important;
    transform: none !important;
  }
}