/* 无 JS 静态子页与主站视觉对齐（/_seo/*） */
:root {
  --paper: #f2ece3;
  --paper-edge: #e8e0d2;
  --ink: #26211c;
  --ink-soft: #5c554c;
  --ink-fade: #8a8278;
  --rule: #d4cbb8;
  --accent: #8a4a32;
  --max: 100%;
  --base-size: 16px;
  --small-size: 14px;
  --line-body: 1.75;
  --pad-x: max(24px, env(safe-area-inset-left, 0px));
  --pad-x-right: max(24px, env(safe-area-inset-right, 0px));
  --pad-bottom: max(32px, env(safe-area-inset-bottom, 0px));
  --pad-top: max(12px, env(safe-area-inset-top, 0px));
  /* 静态子页小标题专用：比 ink-fade 更深一档，避免「米纸上发白发灰」 */
  --seo-label: #5a534a;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  color-scheme: light;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: var(--base-size);
  line-height: var(--line-body);
  -webkit-font-smoothing: antialiased;
}

body {
  padding-bottom: calc(96px + env(safe-area-inset-bottom, 0px));
}

article.seo-page { width: 100%; }

.seo-page {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: calc(var(--pad-top) + max(2.5vh, 10px)) var(--pad-x)
    calc(var(--pad-bottom) + env(safe-area-inset-bottom, 0px) + 2rem)
    var(--pad-x-right);
}

.seo-col {
  width: 100%;
  max-width: min(var(--max), 36rem);
  line-height: 2.1;
  text-align: left;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.seo-col p { margin: 0 0 1.2em 0; }
.seo-small { font-size: var(--small-size); color: var(--ink-soft); }

.seo-title {
  text-align: center;
  font-size: 1.05em;
  font-weight: normal;
  letter-spacing: 0.2em;
  text-indent: 0.2em;
  margin: 0 0 0.6rem 0;
  text-wrap: balance;
}

.seo-dek {
  text-align: center;
  font-size: 0.88em;
  color: var(--ink-soft);
  margin: 0 0 2em 0;
  line-height: 2;
}

.seo-section-label {
  font-size: 0.82em;
  font-weight: 500;
  color: var(--seo-label);
  letter-spacing: 0.1em;
  margin: 0 0 0.8em 0;
}

.seo-hr {
  border: 0;
  height: 0;
  margin: 2em 0;
  text-align: center;
  font-size: 0.85em;
  color: var(--ink-soft);
  letter-spacing: 0.35em;
}
.seo-hr::before { content: "——"; display: block; }

.seo-col a {
  color: var(--ink-soft);
  border-bottom: 1px solid var(--ink-fade);
  text-decoration: none;
}
.seo-col a:hover { color: var(--ink); }

.seo-nav {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-size: var(--small-size);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: center;
}

@media (max-width: 520px) {
  .seo-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 0.65rem;
    max-width: 19.5rem;
    margin-left: auto;
    margin-right: auto;
  }
  .seo-nav a {
    text-align: center;
    padding: 10px 8px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
  }
}

/* 顶栏：与主站首页一致的品牌图标，取代占位圆圈 */
.seo-hero-mark {
  text-align: center;
  margin: 0 0 0.65rem 0;
  line-height: 0;
}
.seo-hero-mark img {
  width: 48px;
  height: 48px;
  display: inline-block;
  vertical-align: middle;
  opacity: 0.92;
}

.seo-page--about-tingyixia .seo-hero-mark {
  margin-bottom: clamp(0.5rem, 1.8vw, 0.85rem);
}

.seo-page--it-come-from .seo-hero-mark {
  margin-bottom: clamp(0.85rem, 3vw, 1.5rem);
}

.seo-brand-mark {
  text-align: center;
  letter-spacing: 0.25em;
  margin: 0 0 1.25rem 0;
  color: var(--ink-soft);
  font-size: 0.92em;
}

.seo-brand-divider {
  margin: 2rem 0;
  text-align: center;
  line-height: 0;
}
.seo-brand-divider img {
  width: min(200px, 58vw);
  height: auto;
  opacity: 0.88;
  display: inline-block;
  vertical-align: middle;
}

.seo-strong { font-weight: 600; color: var(--ink); }

.seo-belief-lead {
  margin: 1.15em 0 0.35em 0;
  color: var(--ink);
}

@media (min-width: 768px) {
  :root { --max: 560px; }
}

@media (min-width: 1024px) {
  :root {
    --base-size: 18px;
    --max: 640px;
    --line-body: 1.85;
  }
}

/* 静态子页：合规底栏（与主站 portal 文案一致） */
.seo-compliance-footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  text-align: center;
  font-size: 12px;
  line-height: 1.55;
  color: var(--ink-fade);
  background: linear-gradient(to top, rgba(242, 236, 227, 0.97) 70%, transparent);
  pointer-events: none;
}
.seo-compliance-inner {
  pointer-events: auto;
  padding: 6px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  max-width: 36rem;
  margin: 0 auto;
}
.seo-compliance-rule {
  border: 0;
  margin: 0 0 10px 0;
  border-top: 1px solid var(--rule);
  opacity: 0.75;
}
.seo-compliance-line {
  margin: 0.2em 0;
}
.seo-compliance-line a {
  color: var(--ink-fade);
  border-bottom: 1px solid var(--ink-fade);
}
.seo-compliance-line a:hover {
  color: var(--ink-soft);
}
.seo-compliance-beian-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35em;
  border-bottom: none !important;
  text-decoration: none;
}
.seo-compliance-beian-link:hover {
  text-decoration: underline;
  color: var(--ink-soft);
}
.seo-compliance-beian-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  display: block;
}
.seo-compliance-footer--minimal .seo-compliance-inner {
  padding-top: 10px;
}