.blog-list-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(4.5rem, 9vw, 7.5rem);
  border-bottom: 1px solid var(--color-border-soft);
  background:
    radial-gradient(circle at 82% 28%, var(--color-sky-glow), transparent 34%),
    radial-gradient(circle at 68% 82%, var(--color-mint-glow), transparent 38%),
    var(--color-bg);
}

.blog-list-hero::after {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 3rem 3rem;
  content: "";
  pointer-events: none;
  opacity: 0.34;
}

.blog-list-hero .wrap {
  position: relative;
  z-index: 1;
}

.blog-list-hero h1 {
  max-width: 52rem;
  margin-block: 0.85rem 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 3rem);
  letter-spacing: -0.02em;
  line-height: 1.12;
  text-wrap: pretty;
}

.blog-list-intro {
  max-width: 42rem;
  margin: 0;
  color: var(--color-muted);
  font-size: 1.06rem;
  line-height: 1.8;
}

.blog-index-section {
  background: var(--color-bg);
}

.blog-index-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
}

.blog-index-heading h2 {
  margin-block: 0.65rem 0;
  font-size: clamp(1.65rem, 4vw, 2.2rem);
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.blog-filter-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.55rem;
}

.blog-filter {
  appearance: none;
  min-height: 2.65rem;
  padding: 0.62rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-white-glass);
  color: var(--color-muted);
  font: inherit;
  cursor: pointer;
  transition:
    color 180ms var(--ease-out),
    background-color 180ms var(--ease-out),
    border-color 180ms var(--ease-out),
    transform 180ms var(--ease-out);
}

.blog-filter:hover {
  color: var(--color-accent-dark);
  border-color: var(--color-accent);
  transform: translateY(-1px);
}

.blog-filter:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.blog-filter.is-active {
  border-color: var(--color-warn-line);
  background: var(--color-warn-soft);
  color: var(--color-text);
}

.blog-list-status {
  min-height: 1.8rem;
  margin-block: 0 1rem;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.article-card {
  display: flex;
  min-width: 0;
  min-height: 19rem;
  flex-direction: column;
  padding: clamp(1.3rem, 3vw, 1.8rem);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-lg);
  background: var(--color-white-glass);
  backdrop-filter: blur(18px);
  transition:
    border-color 180ms var(--ease-out),
    transform 180ms var(--ease-out),
    background-color 180ms var(--ease-out);
}

.article-card:hover {
  border-color: var(--color-accent);
  background: var(--color-white-strong);
  transform: translateY(-3px);
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.article-meta .tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.75rem;
  padding-inline: 0.7rem;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-pill);
  background: var(--color-cyan-soft);
  color: var(--color-accent-dark);
  font-family: var(--font-body);
}

.article-card h3,
.related-card h3 {
  margin-block: 1.15rem 0.8rem;
  font-size: 1.24rem;
  line-height: 1.45;
  letter-spacing: -0.012em;
  text-wrap: pretty;
}

.article-card p,
.related-card p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.75;
}

.article-card-link,
.related-card-link {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 1.3rem;
  color: var(--color-accent-dark);
  font-weight: 700;
  text-decoration: none;
}

.article-card-link:hover,
.related-card-link:hover {
  color: var(--color-accent);
}

/* 文章页排版对齐参考站单列式(2026-08-08 用户拍板,同 23.32 的 vpn5004 口径):
   面包屑/标题/正文一条 48rem 列到底、全部居中。模板 HTML 用的是全宽 .wrap +
   裸 .post-content(CSS 里的 .post-layout/.post-hero-inner 居中容器 HTML 没用上),
   这里按内容盒 48rem 统一三段的列宽,不动 HTML 结构。 */
.blog-breadcrumb {
  max-width: 48rem;
  margin-top: 1.5rem;
  margin-inline: auto;
  padding-top: 0.4rem;
}

.blog-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  color: var(--color-muted);
  font-size: 0.9rem;
  list-style: none;
}

.blog-breadcrumb li:not(:last-child)::after {
  margin-left: 0.55rem;
  color: var(--color-border);
  content: "/";
}

.blog-breadcrumb a {
  color: var(--color-accent-dark);
  text-decoration: none;
}

.blog-breadcrumb a:hover {
  color: var(--color-accent);
}

.post-hero {
  /* 上适中下收紧:参考站标题到正文是紧凑文档流,原 5.5rem 上下等距把页面拉出大空洞 */
  padding-block: clamp(1.8rem, 4vw, 2.8rem) clamp(1rem, 2.5vw, 1.6rem);
}

.post-hero .wrap,
.post-hero-inner {
  /* 与正文同列:内容盒 48rem(wrap 自带 gutter 内边距,故加回两侧 gutter) */
  max-width: calc(48rem + (var(--gutter) * 2));
}

.post-hero .article-meta {
  justify-content: flex-start;
}

.post-hero h1 {
  max-width: 48rem;
  margin-block: 1.1rem 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.6rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.post-lead {
  max-width: 46rem;
  margin: 0;
  color: var(--color-muted);
  font-size: 1.08rem;
  line-height: 1.85;
}

.post-layout {
  display: grid;
  grid-template-columns: minmax(0, 48rem);
  justify-content: center;
}

.post-content {
  width: 100%;
  /* 内部还有一层带 gutter 内边距的 .wrap,内容盒收成 48rem 与面包屑/标题对齐;
     margin-inline:auto 必须有——原版漏了它,正文列整个贴在页面左边 */
  max-width: calc(48rem + (var(--gutter) * 2));
  margin-inline: auto;
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.85;
}

.post-content h2 {
  margin-block: 3rem 1rem;
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  line-height: 1.35;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.post-content h3 {
  margin-block: 2rem 0.75rem;
  font-size: clamp(1.12rem, 2.5vw, 1.3rem);
  line-height: 1.45;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.post-content p,
.post-content ul,
.post-content ol,
.post-content blockquote,
.post-content pre {
  margin-block: 0 1.25rem;
}

.post-content ul,
.post-content ol {
  padding-left: 1.4rem;
}

.post-content li + li {
  margin-top: 0.5rem;
}

.post-content a {
  color: var(--color-accent-dark);
  text-underline-offset: 0.2em;
}

/* 正文链接色会劫持嵌进正文容器的按钮(2026-08-08 姊妹站真实病例:写手文章把推广块放进
   正文容器,主按钮字色被染成 accent → 与按钮底同色全隐形)。预防性夺回。 */
.post-content a.button-primary {
  color: var(--color-panel);
}

.post-content blockquote {
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-blue-soft);
  color: var(--color-muted);
}

.post-content pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 1.1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel-alt);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
}

.post-content code {
  font-family: var(--font-mono);
}

.post-content :not(pre) > code {
  padding: 0.16em 0.4em;
  border-radius: var(--radius-xs);
  background: var(--color-cyan-soft);
  color: var(--color-accent-dark);
}

.post-promo {
  position: relative;
  overflow: hidden;
  max-width: 48rem;
  margin: clamp(3rem, 8vw, 5rem) auto;
  padding: clamp(1.5rem, 5vw, 2.5rem);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 88% 15%, var(--color-sky-glow), transparent 42%),
    var(--color-white-glass);
  backdrop-filter: blur(20px);
}

.post-promo-content {
  position: relative;
  z-index: 1;
  max-width: 36rem;
}

.post-promo h2 {
  margin-block: 0.8rem;
  font-size: clamp(1.45rem, 4vw, 2rem);
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.post-promo p:not(.kicker) {
  margin-block: 0 1.3rem;
  color: var(--color-muted);
  line-height: 1.75;
}

.related-posts {
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: 1rem clamp(3rem, 7vw, 5rem);
}

.related-posts > h2 {
  margin-block: 0 1.4rem;
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.related-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 1.3rem;
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-md);
  background: var(--color-white-glass);
}

.related-card .article-meta {
  align-items: flex-start;
  flex-direction: column;
}

.related-card p {
  font-size: 0.94rem;
}

.post-nav {
  display: grid;
  max-width: var(--page-max);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-inline: auto;
  padding: 0 var(--gutter) clamp(4rem, 9vw, 7rem);
}

.post-nav-card {
  display: flex;
  min-height: 8.5rem;
  flex-direction: column;
  justify-content: center;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
  text-decoration: none;
  transition:
    border-color 180ms var(--ease-out),
    background-color 180ms var(--ease-out),
    transform 180ms var(--ease-out);
}

.post-nav-card:hover {
  border-color: var(--color-accent);
  background: var(--color-cyan-soft);
  transform: translateY(-2px);
}

.post-nav-next {
  grid-column: 2;
  text-align: right;
}

.post-nav-label {
  margin-bottom: 0.5rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.post-nav-card strong {
  line-height: 1.5;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.has-signup-modal {
  overflow: hidden;
}

.signup-modal[hidden] {
  display: none;
}

.signup-modal {
  position: fixed;
  z-index: 1000;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--gutter);
}

.signup-modal-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  border: 0;
  background: var(--color-cyan-glass);
  cursor: pointer;
  opacity: 0;
  backdrop-filter: blur(10px);
  transition: opacity 200ms var(--ease-out);
}

.signup-modal-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 31rem);
  padding: clamp(1.5rem, 5vw, 2.4rem);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 84% 12%, var(--color-cream-glow), transparent 40%),
    var(--color-panel);
  opacity: 0;
  transform: translateY(1rem) scale(0.98);
  transition:
    opacity 200ms var(--ease-out),
    transform 200ms var(--ease-out);
}

.signup-modal.is-open .signup-modal-backdrop,
.signup-modal.is-open .signup-modal-panel {
  opacity: 1;
}

.signup-modal.is-open .signup-modal-panel {
  transform: translateY(0) scale(1);
}

.signup-modal-close {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  display: grid;
  width: 2.4rem;
  height: 2.4rem;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-white-glass);
  color: var(--color-text);
  font: inherit;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}

.signup-modal-close:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
}

.signup-modal-close:focus-visible,
.signup-modal-action:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.signup-modal-brand {
  margin: 0 3rem 0.7rem 0;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-weight: 700;
}

.signup-modal-panel h2 {
  margin-block: 0 0.8rem;
  font-size: clamp(1.55rem, 5vw, 2rem);
  line-height: 1.3;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.signup-modal-panel > p:not(.signup-modal-brand) {
  margin-block: 0 1.4rem;
  color: var(--color-muted);
  line-height: 1.75;
}

@media (max-width: 56rem) {
  .blog-index-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .blog-filter-list {
    justify-content: flex-start;
  }

  .article-grid,
  .related-grid {
    grid-template-columns: 1fr;
  }

  .article-card {
    min-height: 0;
  }
}

@media (max-width: 40rem) {
  .blog-filter-list {
    flex-wrap: nowrap;
    margin-inline: calc(var(--gutter) * -1);
    padding-inline: var(--gutter);
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .blog-filter {
    flex: 0 0 auto;
  }

  .post-nav {
    grid-template-columns: 1fr;
  }

  .post-nav-next {
    grid-column: 1;
    text-align: left;
  }

  .article-meta {
    align-items: flex-start;
    flex-direction: column;
  }
}

.float-cta {
  position: fixed;
  right: max(20px, env(safe-area-inset-right));
  bottom: max(20px, env(safe-area-inset-bottom));
  z-index: 45;
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.24);
}

@media (max-width: 640px) {
  .float-cta {
    right: max(16px, env(safe-area-inset-right));
    bottom: max(16px, env(safe-area-inset-bottom));
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-filter,
  .article-card,
  .post-nav-card,
  .signup-modal-backdrop,
  .signup-modal-panel {
    transition: none;
  }

  .blog-filter:hover,
  .article-card:hover,
  .post-nav-card:hover,
  .signup-modal-panel,
  .signup-modal.is-open .signup-modal-panel {
    transform: none;
  }
}

/* ── 文章富文本组件(2026-08-08 参考 vpn07 文章观感加入站群):
   正文的"视觉锚点"三件套——数据卡网格(.stat-grid)/ 勾叉清单(.check-list)/ 结论块(.verdict)。
   写手规则:卡里的数字只能来自事实表,禁止编"实测 23ms/0 次缓冲"这类页面无法验证的假数据;
   勾叉符号(✅/❌)直接写在 li 文本开头;颜色全走本站设计令牌,禁止写死色值。 */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.8rem;
  margin: 1.4rem 0;
}

.stat-card {
  padding: 0.9rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius, 10px);
  background: var(--color-panel);
  text-align: center;
}

.stat-num {
  margin: 0;
  color: var(--color-accent);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1.2;
}

.stat-label {
  margin: 0.25rem 0 0;
  color: var(--color-muted);
  font-size: 0.78rem;
}

.check-list {
  margin: 1.2rem 0;
  padding-left: 0;
  list-style: none;
}

.check-list li {
  margin: 0.55rem 0;
  line-height: 1.75;
}

.verdict {
  margin: 1.6rem 0;
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius, 10px);
  background: var(--color-panel);
  color: var(--color-text);
  line-height: 1.85;
}

.verdict > strong:first-child {
  color: var(--color-accent);
}