* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: #20242a;
  background: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.page-shell {
  min-height: 100vh;
}

.site-header {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 56px;
  align-items: center;
  justify-content: space-between;
  padding: 12px 30px;
}

.header-link {
  color: #2c2c2c;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.blog-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 64px 24px 96px;
}

.featured-post {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(280px, 1.1fr);
  gap: 24px;
  align-items: stretch;
  margin: 0 0 42px;
  overflow: hidden;
}

.featured-post-copy,
.featured-post-media,
.blog-card {
  color: inherit;
  text-decoration: none;
}

.featured-post-copy {
  display: flex;
  min-height: 300px;
  flex-direction: column;
  justify-content: center;
  padding: 36px;
}

.featured-post h2 {
  margin: 0 0 16px;
  line-height: 1.28;
}

.featured-post p {
  margin: 0 0 22px;
  line-height: 1.76;
}

.featured-post-media {
  display: block;
  min-height: 300px;
}

.featured-post-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.blog-list li {
  min-width: 0;
}

.article {
  max-width: 780px;
  margin: 0 auto;
  padding: 56px 24px 88px;
}

.article h1 {
  margin: 0 0 12px;
  font-size: 40px;
  line-height: 1.22;
}

.article-meta {
  margin: 0 0 36px;
  color: #718096;
}

.article-body {
  color: #2d3748;
  font-size: 17px;
  line-height: 1.82;
}

.article-body h2 {
  margin-top: 36px;
  font-size: 26px;
}

.article-body img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 24px auto;
}

.blog-theme .page-shell {
  background:
    radial-gradient(circle at 78% 2%, rgba(126, 108, 255, 0.14) 0 210px, transparent 420px),
    radial-gradient(circle at 10% 0%, rgba(36, 212, 197, 0.2) 0 190px, transparent 390px),
    linear-gradient(180deg, #ecfffb 0, #f7fbff 360px, #fff 760px);
}

.blog-theme .site-header {
  justify-content: flex-end;
  gap: 24px;
  min-height: 66px;
  padding: 18px 36px;
}

.blog-theme .header-link {
  color: #2f4b55;
}

.blog-theme .blog-page {
  max-width: 1480px;
  padding: 72px 24px 112px;
}

.blog-theme .blog-header {
  max-width: 760px;
  margin: 0 auto 46px;
  text-align: center;
}

.blog-theme .blog-header h1 {
  margin: 0 0 14px;
  color: #162033;
  font-size: 44px;
  line-height: 1.18;
}

.blog-theme .blog-header p {
  margin: 0 auto;
  color: #526173;
}

.blog-theme .featured-post,
.blog-theme .blog-card {
  border: 0;
  border-radius: 18px;
  box-shadow: 0 18px 42px rgba(30, 45, 60, 0.16);
}

.blog-theme .featured-post {
  grid-template-columns: minmax(320px, 0.92fr) minmax(420px, 1.08fr);
}

.blog-theme .featured-post-copy {
  padding: 42px;
}

.blog-theme .featured-post h2 {
  font-size: 34px;
}

.blog-theme .featured-post h2,
.blog-theme .blog-card h2,
.blog-theme .blog-header p,
.blog-theme .featured-post p,
.blog-theme .blog-card p {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.blog-theme .featured-post p,
.blog-theme .blog-card p {
  color: #5c6b7d;
}

.blog-theme .featured-post-media img,
.blog-theme .blog-card img {
  background: #eff8ff;
}

.blog-theme .blog-list {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

@media (min-width: 1320px) {
  .blog-theme .blog-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.blog-theme .blog-card {
  border-radius: 16px;
}

.blog-theme .blog-card img {
  aspect-ratio: 16 / 9;
}

.blog-theme .article {
  max-width: 860px;
  padding: 64px 24px 104px;
}

.blog-theme .article h1 {
  color: #162033;
  font-size: 42px;
}

.blog-theme .article-cover {
  display: block;
  width: 100%;
  margin: 30px auto 42px;
  border-radius: 18px;
  box-shadow: 0 18px 46px rgba(30, 45, 60, 0.16);
}

.blog-theme .article-body {
  color: #2d3748;
}

.blog-theme .article-body p {
  margin: 14px 0;
}

.blog-theme .article-body h2 {
  margin: 46px 0 16px;
  color: #162033;
}

.blog-theme .article-body h3 {
  margin: 30px 0 10px;
  color: #172033;
  font-size: 21px;
}

.blog-theme .article-body img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 14px 34px rgba(30, 45, 60, 0.12);
}

.blog-theme .article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
}

.blog-article .article-body ol,
.blog-article .article-body ul {
  margin: 16px 0 24px;
  padding-left: 26px;
}

.blog-article .article-body li {
  margin: 12px 0;
}

.blog-article .article-body a {
  color: #087f73;
  font-weight: 700;
}

.blog-article .article-cta {
  margin-top: 38px;
  padding: 24px;
  border-left: 4px solid #18b8aa;
  background: #ecfffb;
}

.blog-article .site-footer {
  padding: 26px 24px 34px;
  text-align: center;
  color: #8a94a3;
  font-size: 12px;
  line-height: 1.6;
}

.blog-article .site-footer a {
  color: inherit;
  text-decoration: none;
}

.blog-article .site-footer a:hover {
  color: #18b8aa;
}

.blog-theme .article-body th,
.blog-theme .article-body td {
  border: 1px solid #e3eaf4;
  padding: 12px;
  text-align: left;
  vertical-align: top;
}

.blog-theme .article-body th {
  background: #f2fbff;
  color: #162033;
}

@media (max-width: 720px) {
  .blog-theme .site-header {
    padding: 14px 20px;
  }

  .blog-theme .blog-page {
    padding: 48px 20px 76px;
  }

  .blog-theme .blog-header h1 {
    font-size: 34px;
  }

  .blog-theme .blog-header p {
    max-width: 320px;
    font-size: 16px;
    line-height: 1.7;
  }

  .blog-theme .featured-post,
  .blog-theme .blog-list {
    grid-template-columns: 1fr;
  }

  .blog-theme .blog-page {
    overflow-x: hidden;
  }

  .blog-theme .featured-post {
    display: flex;
    flex-direction: column;
  }

  .blog-theme .featured-post,
  .blog-theme .featured-post-copy,
  .blog-theme .featured-post-media,
  .blog-theme .blog-card {
    min-width: 0;
    width: 100%;
  }

  .blog-theme .featured-post h2,
  .blog-theme .blog-card h2,
  .blog-theme .blog-header p {
    word-break: break-all;
  }

  .blog-theme .featured-post-copy {
    padding: 28px;
  }

  .blog-theme .featured-post h2 {
    max-width: 280px;
    font-size: 24px;
    line-height: 1.32;
  }

  .blog-theme .blog-card h2 {
    max-width: 300px;
    font-size: 20px;
    line-height: 1.35;
  }

  .blog-theme .article {
    padding: 46px 20px 76px;
  }

  .blog-theme .article h1 {
    font-size: 32px;
  }
}

/* Blog index: compact editorial layout. */
.blog-index .page-shell {
  min-height: 100vh;
  background: #f4f7fb;
}

.blog-index .site-header {
  width: min(1180px, calc(100% - 48px));
  min-height: 58px;
  margin: 0 auto;
  padding: 16px 0;
  border-bottom: 1px solid #dfe5ec;
}

.blog-index .header-link {
  color: #344256;
  font-size: 14px;
  font-weight: 600;
}

.blog-index .blog-page {
  max-width: 1180px;
  padding: 44px 24px 88px;
}

.blog-index .blog-header {
  max-width: none;
  margin: 0 0 32px;
  text-align: left;
}

.blog-index .blog-header h1 {
  margin-bottom: 8px;
  color: #111827;
  font-size: 36px;
  line-height: 1.2;
}

.blog-index .blog-header p {
  max-width: 680px;
  margin: 0;
  color: #667085;
  font-size: 16px;
  line-height: 1.7;
}

.blog-index .featured-post {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-height: 300px;
  margin-bottom: 26px;
  overflow: hidden;
  border: 1px solid #dfe5ec;
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(24, 39, 58, 0.08);
}

.blog-index .featured-post-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: 42px 46px;
}

.blog-index .featured-post h2 {
  margin-bottom: 16px;
  color: #111827;
  font-size: 30px;
  line-height: 1.26;
}

.blog-index .featured-post p {
  max-width: 560px;
  margin-bottom: 24px;
  color: #5f6b7a;
  font-size: 16px;
  line-height: 1.75;
}

.blog-index .featured-post time,
.blog-index .blog-card time {
  color: #7b8797;
  font-size: 13px;
  font-weight: 600;
}

.blog-index .featured-post-media {
  min-height: 300px;
  background: #edf1f6;
}

.blog-index .featured-post-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #edf1f6;
}

@media (min-width: 1320px) {
  .blog-index .blog-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.blog-index .blog-list {
  gap: 20px;
}

.blog-index .blog-card {
  display: flex;
  height: 100%;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid #dfe5ec;
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 8px 22px rgba(24, 39, 58, 0.06);
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.blog-index .blog-card:hover {
  transform: translateY(-3px);
  border-color: #b9c4d1;
  box-shadow: 0 14px 28px rgba(24, 39, 58, 0.1);
}

.blog-index .blog-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #edf1f6;
}

.blog-index .blog-card > div {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 22px;
}

.blog-index .blog-card h2 {
  margin-bottom: 10px;
  color: #172033;
  font-size: 20px;
  line-height: 1.4;
}

.blog-index .blog-card p {
  margin-bottom: 22px;
  color: #667085;
  font-size: 14px;
  line-height: 1.7;
}

.blog-index .blog-card time {
  margin-top: auto;
}

.blog-index .site-footer {
  border-top: 1px solid #e1e6ec;
  background: #fff;
}

@media (max-width: 900px) {
  .blog-index .featured-post {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .blog-index .featured-post-copy {
    padding: 32px;
  }

  .blog-index .featured-post h2 {
    font-size: 26px;
  }

  .blog-index .blog-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .blog-index .site-header {
    width: calc(100% - 40px);
    padding: 14px 0;
  }

  .blog-index .blog-page {
    padding: 36px 20px 64px;
  }

  .blog-index .blog-header {
    margin-bottom: 26px;
  }

  .blog-index .blog-header h1 {
    font-size: 30px;
  }

  .blog-index .blog-header p {
    max-width: none;
    font-size: 15px;
  }

  .blog-index .featured-post {
    display: flex;
    min-height: 0;
    flex-direction: column;
    margin-bottom: 20px;
  }

  .blog-index .featured-post-media {
    order: -1;
    min-height: 0;
    aspect-ratio: 16 / 9;
  }

  .blog-index .featured-post-copy {
    padding: 24px;
  }

  .blog-index .featured-post h2 {
    max-width: none;
    font-size: 24px;
    line-height: 1.35;
    word-break: normal;
  }

  .blog-index .featured-post p {
    margin-bottom: 18px;
    font-size: 15px;
  }

  .blog-index .blog-list {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .blog-index .blog-card h2 {
    max-width: none;
    word-break: normal;
  }
}