:root {
  --brand: #f28b23;
  --brand-dark: #d66f0b;
  --text: #171513;
  --muted: #686158;
  --bg: #f6f1e9;
  --card: rgba(255, 252, 247, 0.92);
  --line: rgba(23, 21, 19, 0.08);
  --shadow: 0 26px 70px rgba(29, 23, 16, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Avenir Next", "SF Pro Text", "PingFang SC", "Noto Sans SC", "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(242, 139, 35, 0.12), transparent 24%),
    linear-gradient(180deg, #fbf8f2 0%, #f4efe7 100%);
}

.blog-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 18px 72px;
}

.blog-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
  padding: 14px 18px;
  background: rgba(255, 251, 245, 0.86);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 24px 58px rgba(24, 20, 16, 0.08);
}

.blog-topbar a {
  color: var(--text);
  text-decoration: none;
}

.blog-topbar-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.blog-logo {
  display: inline-flex;
  align-items: center;
}

.blog-logo img {
  height: 42px;
  width: auto;
  display: block;
}

.blog-menu {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.blog-menu a {
  padding: 9px 13px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #302a25;
}

.blog-menu a:hover {
  background: rgba(242, 139, 35, 0.12);
}

.blog-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  overflow: hidden;
  max-width: 920px;
  margin: 0 auto;
}

.blog-cover-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(140deg, #f7f4ee, #ece5da);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--line);
}

.blog-cover {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.blog-content {
  padding: 34px 38px 40px;
}

.blog-date {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.blog-title {
  margin: 0 0 14px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.03;
  letter-spacing: -0.05em;
}

.blog-excerpt {
  margin: 0 0 18px;
  font-size: 20px;
  color: #3f3831;
  line-height: 1.75;
}

.blog-body {
  margin-top: 18px;
  color: #1b1815;
  line-height: 1.95;
  font-size: 18px;
  word-break: break-word;
}

.blog-body p {
  margin: 0 0 1.2em;
}

.blog-body h2,
.blog-body h3,
.blog-body h4 {
  margin: 1.7em 0 0.65em;
  line-height: 1.2;
  font-weight: 700;
  color: #14110f;
  letter-spacing: -0.03em;
}

.blog-body h2 {
  font-size: 1.6em;
}

.blog-body h3 {
  font-size: 1.3em;
}

.blog-body h4 {
  font-size: 1.05em;
}

.blog-body ul,
.blog-body ol {
  margin: 0.4em 0 1.1em;
  padding-left: 1.4em;
}

.blog-body li {
  margin-bottom: 0.55em;
  padding-left: 0.2em;
}

.blog-body blockquote {
  margin: 1.4em 0;
  padding: 1em 1.2em;
  border-left: 3px solid var(--brand);
  background: #fff6ea;
  color: #4a423b;
  border-radius: 0 14px 14px 0;
}

.blog-body strong {
  font-weight: 700;
}

.blog-body hr {
  border: 0;
  border-top: 1px solid rgba(23, 21, 19, 0.1);
  margin: 2em 0;
}

.blog-body code {
  background: #f4eee5;
  border: 1px solid rgba(23, 21, 19, 0.08);
  border-radius: 6px;
  padding: 0.1em 0.35em;
  font-size: 0.92em;
}

.blog-state {
  background: rgba(255, 252, 247, 0.92);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 22px 24px;
  color: var(--muted);
  max-width: 920px;
  margin: 0 auto;
  box-shadow: var(--shadow);
}

.blog-error {
  color: #b91c1c;
}

.btn-home {
  background: linear-gradient(135deg, #f49a36 0%, #de7210 100%);
  color: #fffdf9;
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 700;
  box-shadow: 0 14px 30px rgba(242, 139, 35, 0.22);
}

@media (max-width: 700px) {
  .blog-shell {
    padding: 18px 14px 56px;
  }

  .blog-topbar {
    flex-direction: column;
    align-items: stretch;
    border-radius: 20px;
  }

  .blog-topbar-left {
    justify-content: space-between;
  }

  .blog-logo img {
    height: 36px;
  }

  .blog-content {
    padding: 22px 20px 26px;
  }

  .blog-body {
    font-size: 16px;
  }

  .blog-title {
    font-size: clamp(30px, 10vw, 42px);
  }

  .blog-excerpt {
    font-size: 18px;
  }
}