/* 谦信邮币网 · 收藏指南（与首页设计系统一致） */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700&family=DM+Serif+Display:ital@0;1&display=swap');

:root {
  --bg: #faf7f2;
  --surface: #ffffff;
  --ink: #2b2825;
  --ink-dim: #726e68;
  --ink-faint: #a8a49e;
  --accent: #b8946e;
  --accent-dim: #8b6f52;
  --accent-pale: #f6f0e7;
  --border: #e8e3da;
  --divider: #d4cec5;
  --font-display: 'DM Serif Display', 'Noto Sans SC', serif;
  --font-sans: 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --max-w: 720px;
  --radius: 12px;
  --shadow-ambient: 0 1px 2px rgba(0,0,0,0.03), 0 2px 8px rgba(0,0,0,0.04);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  font-size: 1.02rem;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-dim); }
a:hover { color: var(--ink); }

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: clamp(1.25rem, 4vw, 2rem) clamp(1rem, 4vw, 1.5rem) 2.5rem;
}

.site-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
  margin-bottom: 1.75rem;
}
.site-header a.brand {
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.08rem;
  letter-spacing: 0.04em;
}
.site-header .sub {
  color: var(--ink-dim);
  font-size: 0.88rem;
  margin-top: 0.35rem;
  letter-spacing: 0.02em;
}
.site-header--sub {
  margin-bottom: 0.25rem;
  padding: 0;
  border: none;
}
.site-header--sub .sub {
  margin: 0;
}

.page-eyebrow {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--accent-dim);
  margin-bottom: 0.65rem;
}

h1 {
  font-family: var(--font-sans);
  font-size: clamp(1.45rem, 4vw, 1.85rem);
  font-weight: 300;
  line-height: 1.35;
  letter-spacing: 0.03em;
  margin-bottom: 0.65rem;
  color: var(--ink);
}

.article-updated {
  display: inline-block;
  font-size: 0.82rem;
  color: var(--ink-faint);
  margin-bottom: 1.25rem;
  font-variant-numeric: tabular-nums;
}
.article-updated time { color: inherit; }

.lede {
  color: var(--ink-dim);
  margin-bottom: 1.5rem;
  line-height: 1.85;
  font-size: 1rem;
}

h2 {
  font-family: var(--font-sans);
  font-size: 1.12rem;
  font-weight: 600;
  margin: 2rem 0 0.65rem;
  letter-spacing: 0.02em;
  color: var(--ink);
}

p, ul { margin-bottom: 1rem; }
ul { padding-left: 1.25rem; }
li { margin-bottom: 0.35rem; }

/* ── 收藏指南列表：单列展示，篇数多时自动收紧行距 ── */
.guides-list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-ambient);
  overflow: hidden;
}

.guides-list-item {
  border-bottom: 1px solid var(--border);
  min-height: 0;
}
.guides-list-item:last-child { border-bottom: none; }

.guides-list-link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.85rem 1rem;
  padding: 0.95rem 1.1rem;
  text-decoration: none;
  color: inherit;
  transition: background 0.2s ease, padding-left 0.22s ease;
}
.guides-list-link:hover {
  background: var(--accent-pale);
}
.guides-list-link:hover .guides-list-title { color: var(--accent-dim); }
.guides-list-link:hover .guides-list-arrow {
  color: var(--accent-dim);
  transform: translateX(3px);
}

.guides-list-item--latest .guides-list-link {
  background: linear-gradient(90deg, rgba(246, 240, 231, 0.95) 0%, rgba(255, 255, 255, 0) 72%);
}
.guides-list-item--latest .guides-list-index {
  color: var(--accent-dim);
  font-weight: 700;
}

.guides-list-index {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  min-width: 1.75rem;
  text-align: right;
}

.guides-list-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.guides-list-title {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.45;
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
}

.guides-list-desc {
  display: block;
  font-size: 0.84rem;
  color: var(--ink-dim);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.guides-list-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  font-size: 0.78rem;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.guides-list-meta time { color: inherit; }

.guides-list-arrow {
  font-size: 1rem;
  line-height: 1;
  color: var(--ink-faint);
  transition: transform 0.22s ease, color 0.2s ease;
}

.guides-list-foot {
  margin-top: 1rem;
  font-size: 0.86rem;
  color: var(--ink-faint);
  text-align: center;
  line-height: 1.65;
}
.guides-list-foot strong {
  color: var(--ink-dim);
  font-weight: 600;
}

/* 篇数 ≤8：宽松，摘要两行 */
.guides-list--comfortable .guides-list-link {
  padding: 1.05rem 1.2rem;
}
.guides-list--comfortable .guides-list-desc {
  -webkit-line-clamp: 2;
}

/* 篇数 9–20：标准行高 */
.guides-list--balanced .guides-list-link {
  padding: 0.9rem 1.1rem;
}
.guides-list--balanced .guides-list-desc {
  -webkit-line-clamp: 1;
}

/* 篇数 >20：紧凑，移动端隐藏摘要 */
.guides-list--dense .guides-list-link {
  padding: 0.72rem 1rem;
}
.guides-list--dense .guides-list-title {
  font-size: 0.96rem;
}
.guides-list--dense .guides-list-desc {
  -webkit-line-clamp: 1;
  font-size: 0.8rem;
}

@media (max-width: 640px) {
  .guides-list-link {
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    gap: 0.35rem 0.75rem;
    padding: 0.85rem 1rem;
  }
  .guides-list-meta {
    grid-column: 2;
    justify-self: start;
    font-size: 0.74rem;
  }
  .guides-list-arrow { display: none; }
  .guides-list--dense .guides-list-desc,
  .guides-list--balanced .guides-list-desc {
    display: none;
  }
}

/* 目录页加宽 */
.wrap.wrap--guides-index {
  max-width: min(920px, 100%);
}

/* 顶栏 */
.guides-top {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.guides-top-inner {
  max-width: min(920px, 100%);
  margin: 0 auto;
  padding: 0.75rem clamp(1rem, 4vw, 1.5rem);
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.guides-top .brand {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.04em;
  margin-right: auto;
}
.guides-top-nav {
  display: flex;
  gap: 1rem;
  font-size: 0.88rem;
}
.guides-top-nav a {
  text-decoration: none;
  color: var(--ink-dim);
}
.guides-top-nav a:hover,
.guides-top-nav a[aria-current="page"] {
  color: var(--accent-dim);
}
.guides-top-phone {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  font-variant-numeric: tabular-nums;
}

/* 搜索区 */
.guides-search-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem 1rem;
  margin: 1.35rem 0 1.5rem;
  box-shadow: var(--shadow-ambient);
}
.guides-search-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--accent-dim);
  margin-bottom: 0.55rem;
}
.guides-search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.guides-search-icon {
  position: absolute;
  left: 0.85rem;
  width: 1.1rem;
  height: 1.1rem;
  color: var(--ink-faint);
  pointer-events: none;
}
.guides-search-input {
  width: 100%;
  padding: 0.72rem 2.5rem 0.72rem 2.65rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
  font-size: 1rem;
  color: var(--ink);
  background: var(--bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.guides-search-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(184, 148, 110, 0.18);
}
.guides-search-clear {
  position: absolute;
  right: 0.35rem;
  width: 2rem;
  height: 2rem;
  border: none;
  background: transparent;
  color: var(--ink-faint);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  border-radius: 6px;
}
.guides-search-clear:hover { color: var(--ink-dim); }

.guides-quick-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.85rem;
}
.guides-quick-label {
  font-size: 0.76rem;
  color: var(--ink-faint);
  margin-right: 0.15rem;
}
.guides-quick-tag {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink-dim);
  font: inherit;
  font-size: 0.8rem;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.guides-quick-tag:hover {
  border-color: var(--accent);
  color: var(--accent-dim);
}

.guides-cat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.95rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}
.guides-cat-tab {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink-dim);
  font: inherit;
  font-size: 0.82rem;
  padding: 0.38rem 0.72rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.guides-cat-tab:hover {
  border-color: var(--accent);
  color: var(--accent-dim);
}
.guides-cat-tab.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.guides-search-meta {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  color: var(--ink-faint);
  min-height: 1.25em;
}
.guides-search-meta strong {
  color: var(--ink-dim);
  font-weight: 600;
}

.guides-list-cat {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent-dim);
  background: var(--accent-pale);
  border: 1px solid rgba(184, 148, 110, 0.25);
  border-radius: 4px;
  padding: 0.08rem 0.35rem;
  margin-bottom: 0.25rem;
  width: fit-content;
}

.guides-empty {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--ink-dim);
  font-size: 0.95rem;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

@media (max-width: 640px) {
  .guides-top-nav { order: 3; width: 100%; }
  .guides-top-phone { margin-left: auto; }
  .guides-cat-tab { font-size: 0.78rem; padding: 0.32rem 0.55rem; }
}

/* 兼容旧类名（若缓存未刷新） */
.guides-grid-note {
  margin-top: 1rem;
  font-size: 0.86rem;
  color: var(--ink-faint);
  text-align: center;
}

.cta-box {
  background: var(--accent-pale);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  margin: 2rem 0 0;
}
.cta-box p { margin-bottom: 0.75rem; }
.cta-box .btns { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 0.5rem; }

.btn {
  display: inline-block;
  padding: 0.65rem 1.15rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #3d3834; color: #fff; }
.btn-ghost {
  border: 1px solid var(--border);
  color: var(--ink);
  background: var(--surface);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-dim); }

.guide-nav {
  margin-top: 1rem;
  padding-top: 0;
  border-top: none;
  font-size: 0.92rem;
  color: var(--ink-dim);
}
.guide-nav a { text-decoration: none; font-weight: 500; }

.guide-seo-links {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}
.guide-seo-links-title {
  margin: 0 0 0.75rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.guide-seo-links-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.65rem;
}
.guide-seo-links-list a {
  display: inline-block;
  padding: 0.42rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--ink);
  background: var(--surface);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.guide-seo-links-list a:hover {
  border-color: var(--accent);
  color: var(--accent-dim);
}

.guide-seo-related {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}
.guide-seo-related h3 {
  margin: 0 0 0.65rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
}
.guide-seo-related ul {
  margin: 0;
  padding-left: 1.15rem;
  line-height: 1.65;
}
.guide-seo-related li + li { margin-top: 0.35rem; }
.guide-seo-related a {
  font-weight: 600;
  text-decoration: none;
  color: var(--accent-dim);
}
.guide-seo-related a:hover { text-decoration: underline; }

.guide-market-note {
  margin: 1.25rem 0 1.5rem;
  padding: 1rem 1.1rem;
  border-left: 3px solid var(--accent);
  background: rgba(184, 148, 110, 0.08);
  border-radius: 0 8px 8px 0;
}
.guide-market-note-label {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-dim);
  text-transform: uppercase;
}
.guide-market-note p {
  margin: 0.35rem 0 0;
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--ink);
}
.guide-market-note-cta {
  margin-top: 0.65rem !important;
  font-size: 0.88rem !important;
}
.guide-market-note-cta a {
  font-weight: 600;
  text-decoration: none;
  color: var(--accent-dim);
}
.guide-market-note-cta a:hover { text-decoration: underline; }

.site-footer {
  text-align: center;
  font-size: 0.82rem;
  color: var(--ink-dim);
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  line-height: 1.65;
}
.site-footer a {
  color: var(--ink-dim);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 40, 37, 0.12);
}
.site-footer a:hover { color: var(--accent-dim); }