/* 围巾编织坊 · 公共组件 */

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 24px); }

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;
  font-size: var(--text-base);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, select, input { font: inherit; color: inherit; }
button { cursor: pointer; }
ul, ol { margin: 0; padding: 0; }
figure, h1, h2, h3, h4, p { margin: 0; }

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

::selection { background: var(--color-accent); color: var(--color-cream); }

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--color-ink);
  color: var(--color-cream);
  border-radius: var(--radius-md);
  transition: top 0.2s ease;
}
.skip-link:focus { top: 12px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 241, 231, 0.92);
  border-bottom: 1px solid var(--color-line);
  backdrop-filter: blur(12px);
  transition: box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}
.site-header.is-scrolled { box-shadow: var(--shadow-header); background: rgba(247, 241, 231, 0.98); }

.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  min-height: var(--header-h);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.logo svg { width: 32px; height: 32px; flex: none; color: var(--color-accent); }

.site-nav { margin-left: 48px; }
.nav-list {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 28px;
  list-style: none;
}
.nav-list li { flex: none; }
.nav-list a {
  position: relative;
  display: block;
  padding: 8px 0;
  font-size: 16.8px;
  color: var(--color-ink-soft);
  white-space: nowrap;
  transition: color 0.2s var(--ease);
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 1px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}
.nav-list a:hover { color: var(--color-accent-deep); }
.nav-list a:hover::after,
.nav-list a[aria-current="page"]::after { transform: scaleX(1); }
.nav-list a[aria-current="page"] { color: var(--color-ink); font-weight: 600; }

.header-cta {
  display: inline-flex;
  margin-left: auto;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--color-line-strong);
  border-radius: 999px;
  font-size: var(--text-sm);
  color: var(--color-ink);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.header-cta:hover { background: var(--color-ink); border-color: var(--color-ink); color: var(--color-cream); }
.header-cta svg { width: 14px; height: 14px; }

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  padding: 0;
  border: 1px solid var(--color-line-strong);
  border-radius: 50%;
  background: transparent;
  color: var(--color-ink);
  align-items: center;
  justify-content: center;
}
.menu-toggle svg { width: 20px; height: 20px; }
.menu-toggle .icon-close { display: none; }
.menu-toggle[aria-expanded="true"] .icon-open { display: none; }
.menu-toggle[aria-expanded="true"] .icon-close { display: block; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: background 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease), transform 0.22s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn svg { width: 15px; height: 15px; }
.btn-primary { background: var(--color-accent); color: #fff8ef; }
.btn-primary:hover { background: var(--color-accent-deep); }
.btn-ghost { border-color: var(--color-line-strong); color: var(--color-ink); }
.btn-ghost:hover { border-color: var(--color-ink); background: var(--color-ink); color: var(--color-cream); }

/* ---------- 区块标题 ---------- */
.section { padding: var(--section-y) 0; }
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
  align-items: end;
  margin-bottom: 12px;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(23.2px, 1.9vw, 27.2px);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.01em;
}
.section-head p {
  color: var(--color-muted);
  font-size: 13.12px;
  line-height: 1.85;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
}

/* ---------- 标签与文章卡 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border: 1px solid var(--color-line-strong);
  border-radius: 999px;
  color: var(--color-ink-soft);
  font-size: 11.52px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.tag-accent { border-color: var(--color-accent); color: var(--color-accent-deep); }

.post-card {
  display: flex;
  flex-direction: column;
  background: transparent;
  min-width: 0;
}
.post-card .thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-sm);
  background: var(--color-paper-deep);
}
.post-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.post-card:hover .thumb img { transform: scale(1.04); }
.post-card .thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 62%, rgba(35, 27, 18, 0.22));
  pointer-events: none;
}
.post-card .meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 16px 0 8px;
  color: var(--color-faint);
  font-size: 11.52px;
  letter-spacing: 0.06em;
}
.post-card .meta .tag { margin-right: auto; }
.post-card h3 {
  font-family: var(--font-serif);
  font-size: 17.28px;
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: 0.01em;
  transition: color 0.2s var(--ease);
}
.post-card:hover h3 { color: var(--color-accent-deep); }
.post-card .summary {
  margin-top: 10px;
  color: var(--color-muted);
  font-size: 13.12px;
  line-height: 1.85;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card .read-link {
  margin-top: 14px;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-ink-soft);
  font-size: 12.48px;
  border-bottom: 1px solid var(--color-line-strong);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.post-card .read-link svg { width: 12px; height: 12px; }
.post-card:hover .read-link { color: var(--color-accent-deep); border-color: var(--color-accent); }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--color-green);
  color: var(--color-cream);
  padding: 4px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.9fr 1fr 1fr;
  gap: 24px;
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(244, 236, 221, 0.16);
}
.footer-brand .logo { color: var(--color-cream); font-size: 20.8px; }
.footer-brand .logo svg { color: #d99a7a; }
.footer-brand p {
  margin-top: 4px;
  max-width: 400px;
  color: rgba(244, 236, 221, 0.7);
  font-size: 12.48px;
  line-height: 1.6;
}
.footer-col h2 {
  margin-bottom: 3px;
  color: #d99a7a;
  font-size: 9.6px;
  font-weight: 600;
  letter-spacing: 0.2em;
}
.footer-col ul { list-style: none; display: grid; gap: 0; }
.footer-col li { line-height: 1.4; }
.footer-col a {
  display: block;
  color: rgba(244, 236, 221, 0.8);
  font-size: 12.8px;
  line-height: 1.4;
  transition: color 0.2s var(--ease);
}
.footer-col a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 4px;
  color: rgba(244, 236, 221, 0.5);
  font-size: 11.2px;
  letter-spacing: 0.03em;
}
.footer-note {
  margin-top: 2px;
  padding: 3px 6px;
  border: 1px solid rgba(244, 236, 221, 0.14);
  border-radius: var(--radius-sm);
  color: rgba(244, 236, 221, 0.6);
  font-size: 9.6px;
  line-height: 1.5;
}
.footer-note strong { color: #d99a7a; font-weight: 600; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .header-cta { display: none; }
  .site-nav { margin-left: 48px; }
  .nav-list { gap: 0; }
  .nav-list a { padding: 8px 9px; font-size: 13.12px; }
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
}

@media (max-width: 820px) {
  :root { --section-y: 64px; }
  .menu-toggle { display: inline-flex; }
  .header-inner { gap: 12px; }
  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto;
    margin: 0;
    padding: 12px var(--gutter) 24px;
    background: var(--color-paper);
    border-bottom: 1px solid var(--color-line);
    box-shadow: var(--shadow-header);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .site-nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-list a { padding: 13px 8px; font-size: 15.2px; border-bottom: 1px solid var(--color-line); }
  .nav-list a::after { display: none; }
  .nav-list a[aria-current="page"] { color: var(--color-accent-deep); }
  .section-head { grid-template-columns: 1fr; gap: 18px; margin-bottom: 32px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}

@media (max-width: 520px) {
  :root { --gutter: 18px; --section-y: 52px; }
  .logo { font-size: 17.28px; }
  .logo svg { width: 28px; height: 28px; }
  .footer-top { grid-template-columns: 1fr; gap: 30px; }
  .footer-brand { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 可访问性：仅屏幕阅读器可见 */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* 精简页脚：品牌 + 关于链接，贴合视觉稿 */
.site-footer { padding: 16px 0 6px; }
.footer-top { grid-template-columns: minmax(0, 1fr) auto; align-items: start; gap: 40px; padding-bottom: 8px; }
.footer-links { display: flex; gap: 28px; padding-top: 8px; }
.footer-links a { color: rgba(244, 236, 221, 0.82); font-size: 11.52px; }
.footer-links a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.footer-brand p { max-width: 760px; font-size: 11.52px; line-height: 1.7; }
.footer-note { margin-top: 4px; padding: 4px 0 0; border: 0; font-size: 9.92px; line-height: 1.6; }
.footer-bottom { padding-top: 4px; font-size: 9.92px; }
@media (max-width: 820px) {
  .footer-top { grid-template-columns: 1fr; gap: 12px; }
  .footer-links { gap: 20px; padding-top: 0; }
}
[hidden] { display: none !important; }

/* ---------- 中等宽度：压缩导航间距，保证单行 ---------- */
@media (max-width: 1240px) {
  .site-nav { margin-left: 28px; }
  .nav-list { gap: 16px; }
  .nav-list a { font-size: 14.5px; }
}