@charset "UTF-8";

/* ==========================================================
   SRStudio — News subpages (article + list)
   依赖 style.css 的设计令牌与 site-header / site-footer
   ========================================================== */

.site-header .crumb-label {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.np-main {
  max-width: 1360px;
  margin: 0 auto;
  padding: 168px 40px 96px;
  min-height: 60vh;
}

.np-article {
  max-width: 760px;
  margin: 0 auto;
}

/* ---------- 面包屑 ---------- */
.np-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-cn);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 56px;
}
.np-breadcrumb a { color: var(--muted); text-decoration: none; transition: color var(--t-fast); }
.np-breadcrumb a:hover { color: var(--burgundy); }
.np-breadcrumb span[aria-hidden] { opacity: 0.4; }
.np-breadcrumb-here { color: var(--charcoal); }

/* ---------- 文章头部 ---------- */
.np-head { margin-bottom: 48px; }

.np-meta {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 26px;
  font-size: 12.5px;
  letter-spacing: 0.12em;
}
.np-date { font-family: var(--font-en); color: var(--muted); letter-spacing: 0.18em; }
.np-dot { color: var(--silver); }
.np-tag { color: var(--charcoal); }
.np-tag-en {
  font-family: var(--font-en);
  color: var(--muted-light);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.np-title {
  font-family: var(--font-cn);
  font-size: clamp(26px, 4.2vw, 42px);
  font-weight: 400;
  line-height: 1.42;
  letter-spacing: 0.03em;
  color: var(--ink);
  margin-bottom: 18px;
}
.np-title-en {
  font-family: var(--font-en);
  font-size: clamp(15px, 1.8vw, 19px);
  font-weight: 400;
  line-height: 1.6;
  color: var(--muted);
  letter-spacing: 0.01em;
  margin-bottom: 0;
}

/* ---------- 封面 ---------- */
.np-figure {
  margin: 0 0 52px;
}
.np-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  border: 0.5px solid rgba(0, 0, 0, 0.08);
}

/* ---------- 正文 ---------- */
.np-body { margin-bottom: 56px; }
.np-summary {
  font-family: var(--font-cn);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 2.05;
  letter-spacing: 0.035em;
  color: var(--charcoal);
  margin-bottom: 26px;
}
.np-summary-en {
  font-family: var(--font-en);
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
  padding-top: 26px;
  border-top: 0.5px solid rgba(0, 0, 0, 0.08);
}

.np-actions { margin-top: 40px; }

/* ---------- 公众号正文 ---------- */
.np-content {
  font-family: var(--font-cn);
  font-size: 15px;
  line-height: 2.05;
  letter-spacing: 0.035em;
  color: var(--charcoal);
}
.np-content p,
.np-content section {
  margin: 0 0 22px;
}
.np-content h1, .np-content h2, .np-content h3, .np-content h4 {
  font-family: var(--font-cn);
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin: 44px 0 20px;
}
.np-content h2 { font-size: 22px; }
.np-content h3 { font-size: 19px; }
.np-content h4 { font-size: 17px; }
.np-content strong { color: var(--ink); }
.np-content img {
  display: block;
  width: 100%;
  height: auto;
  margin: 30px auto;
  border-radius: 4px;
}
.np-content blockquote {
  margin: 30px 0;
  padding: 4px 0 4px 22px;
  border-left: 2px solid var(--silver);
  color: var(--muted);
}
.np-content ul, .np-content ol { margin: 0 0 22px; padding-left: 24px; }
.np-content li { margin-bottom: 8px; }
.np-content a { color: var(--charcoal); text-decoration: underline; text-underline-offset: 3px; }
.np-content a:hover { color: var(--muted); }
.np-source {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-cn);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--charcoal);
  text-decoration: none;
  padding-bottom: 5px;
  border-bottom: 1px solid var(--charcoal);
  transition: color var(--t-fast), border-color var(--t-fast);
}
a.np-source:hover { color: var(--muted); border-color: var(--muted); }
.np-source--static { border-bottom-color: rgba(0, 0, 0, 0.12); color: var(--muted); }
.np-source-en {
  font-family: var(--font-en);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted-light);
}

/* ---------- 上一篇 / 下一篇 ---------- */
.np-pn {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 40px 0;
  border-top: 0.5px solid rgba(0, 0, 0, 0.08);
  border-bottom: 0.5px solid rgba(0, 0, 0, 0.08);
  margin-bottom: 32px;
}
.np-pn-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-decoration: none;
  min-width: 0;
}
.np-pn-item--empty { pointer-events: none; }
.np-pn-next { text-align: right; align-items: flex-end; }
.np-pn-label {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted-light);
}
.np-pn-title {
  font-family: var(--font-cn);
  font-size: 14.5px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--charcoal);
  transition: color var(--t-fast);
}
a.np-pn-item:hover .np-pn-title { color: var(--muted); }

.np-back { text-align: center; }
.np-back a {
  font-family: var(--font-cn);
  font-size: 13.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--t-fast);
}
.np-back a:hover { color: var(--charcoal); }
.np-back-en {
  font-family: var(--font-en);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted-light);
}

/* ---------- 列表页 ---------- */
.np-lead {
  font-family: var(--font-cn);
  font-size: 15px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-top: 26px;
}
.np-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.np-li { border-bottom: 0.5px solid rgba(0, 0, 0, 0.08); }
.np-li:first-child { border-top: 0.5px solid rgba(0, 0, 0, 0.08); }
.np-card {
  display: block;
  padding: 34px 8px;
  text-decoration: none;
  transition: padding var(--t-fast);
}
.np-card:hover { padding-left: 18px; }
.np-card-date {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin-right: 14px;
}
.np-card-tag {
  display: inline-block;
  font-family: var(--font-cn);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--charcoal);
}
.np-card-title {
  display: block;
  font-family: var(--font-cn);
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--ink);
  margin-top: 12px;
  transition: color var(--t-fast);
}
.np-card:hover .np-card-title { color: var(--muted); }
.np-card-title-en {
  display: block;
  font-family: var(--font-en);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted-light);
  margin-top: 6px;
}
.np-card-summary {
  display: block;
  font-family: var(--font-cn);
  font-size: 14px;
  line-height: 1.95;
  letter-spacing: 0.03em;
  color: var(--muted);
  margin-top: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.np-card-more {
  display: inline-block;
  font-family: var(--font-cn);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--charcoal);
  margin-top: 14px;
}
.np-card-more-en {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted-light);
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .np-main { padding: 132px 24px 72px; }
  .np-breadcrumb { margin-bottom: 40px; font-size: 12px; }
  .np-pn { grid-template-columns: 1fr; gap: 28px; }
  .np-pn-next { text-align: left; align-items: flex-start; }
  .np-card { padding: 26px 2px; }
  .np-card:hover { padding-left: 10px; }
  .site-header .crumb-label { display: none; }
}

@media (prefers-reduced-motion: no-preference) {
  .np-article { animation: np-fade 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) both; }
  @keyframes np-fade {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: none; }
  }
}