/* ============================================================
 * 关于 PASCO — 页面级样式（about）
 * 全局 tokens / .container / .btn / .section-head 系列 / topbar / footer
 * 已在 assets/site.css；本文件只含 about 专属区块。
 * 源：design/claude-design/about.html <style>
 * ============================================================ */

/* ---------- Page hero (navy band) ---------- */
.page-hero {
  background: var(--brand-navy);
  color: var(--text-on-dark);
  padding: 80px 0 88px;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
/* Dot lattice motif, top-right */
.page-hero::after {
  content: "";
  position: absolute;
  top: -40px; right: -40px;
  width: 360px; height: 320px;
  background-image: radial-gradient(rgba(217, 178, 94, .22) 1.5px, transparent 1.5px);
  background-size: 18px 18px;
  mask-image: radial-gradient(ellipse at top right, black, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at top right, black, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.page-hero-inner {
  max-width: 780px;
  position: relative;
  z-index: 1;
}
.page-hero .kicker-light {
  color: var(--brand-gold-light);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
}
.page-hero h1 {
  color: #fff;
  font-size: clamp(30px, 3.4vw, 42px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.3px;
  margin-top: var(--s-4);
  max-width: 720px;
}
.page-hero p.lead {
  margin-top: var(--s-6);
  font-size: 16.5px;
  color: var(--text-on-dark);
  line-height: 1.8;
  max-width: 720px;
}
.fact-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-8);
}
.fact-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border: 1px solid rgba(217, 178, 94, .35);
  border-radius: var(--radius-pill);
  background: rgba(217, 178, 94, .07);
  color: var(--text-on-dark);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: .3px;
  white-space: nowrap;
}
.fact-chip strong {
  color: var(--brand-gold-light);
  font-weight: 700;
  margin-right: 6px;
}

/* ---------- Mission section ---------- */
.mission .section-head { margin-bottom: var(--s-8); }
.mission-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: var(--s-16);
  align-items: start;
}
.mission-prose p {
  font-size: 16.5px;
  color: var(--text);
  line-height: 1.85;
}
.mission-prose p + p { margin-top: var(--s-4); }
.mission-prose p.note {
  color: var(--text-muted);
  font-size: 14.5px;
  margin-top: var(--s-6);
  padding-left: var(--s-4);
  border-left: 2px solid var(--brand-gold-light);
}
.photo-placeholder {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  background:
    url("about-mission.svg") center / cover no-repeat,
    linear-gradient(135deg, rgba(46, 109, 180, .08), rgba(184, 134, 47, .05) 60%, rgba(46, 109, 180, .06)),
    var(--bg-subtle);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.photo-placeholder::after {
  content: attr(data-label);
  position: absolute;
  left: 24px; bottom: 20px;
  color: #6B7A91;
  font-size: 13px;
  letter-spacing: .3px;
}

/* ---------- Org structure section ---------- */
.org { background: var(--bg-subtle); }
.org .section-lead { max-width: 640px; }

.org-subhead {
  display: flex;
  align-items: baseline;
  gap: var(--s-4);
  margin-bottom: var(--s-6);
  margin-top: var(--s-8);
}
.org-subhead:first-of-type { margin-top: 0; }
.org-subhead h3 {
  font-size: 18px;
  color: var(--brand-navy);
  font-weight: 700;
}
.org-subhead .count {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
}

.board-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-4);
}
.board-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 18px 22px;
  display: flex; flex-direction: column; align-items: center;
  text-align: center; gap: 3px;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.board-card:hover {
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.board-avatar {
  width: 76px; height: 76px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 12px;
  background: var(--bg-subtle);
  display: grid; place-items: center;
}
.board-avatar img { width: 100%; height: 100%; object-fit: cover; }
.board-avatar--default {
  background: #EAF0F8;
  color: #A6B6CE;
}
.board-avatar--default svg { width: 46px; height: 46px; }
.board-card .name {
  color: var(--brand-navy);
  font-size: 16px;
  font-weight: 700;
}
.board-card .role {
  color: var(--text-muted);
  font-size: 13.5px;
}
.board-li {
  margin-top: 10px;
  width: 30px; height: 30px;
  border-radius: 50%;
  display: grid; place-items: center;
  color: var(--brand-blue);
  border: 1px solid var(--border);
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.board-li:hover { background: var(--brand-blue); color: #fff; border-color: var(--brand-blue); }

/* 驻外特别代表（无头像） */
.reps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-4);
}
.rep-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--brand-gold-light);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.rep-card:hover { box-shadow: var(--shadow-sm); }
.rep-top {
  display: flex; align-items: baseline; gap: 10px;
  flex-wrap: wrap; margin-bottom: 7px;
}
.rep-name { color: var(--brand-navy); font-size: 16px; font-weight: 700; }
.rep-region {
  font-size: 12px; color: var(--brand-gold-ink); font-weight: 600;
  background: #FBF3E0; border-radius: var(--radius-pill); padding: 2px 11px;
}
.rep-title { color: var(--text-muted); font-size: 13.5px; line-height: 1.55; }

.dept-row {
  display: flex; flex-wrap: wrap; gap: var(--s-3);
}
.dept-chip {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 10px 22px;
  color: var(--brand-navy);
  font-size: 14.5px;
  font-weight: 600;
  transition: border-color .2s ease, color .2s ease;
}
.dept-chip:hover {
  border-color: var(--brand-blue);
  color: var(--brand-blue);
}

/* ---------- Disciplines (学部) ---------- */
.disciplines .section-lead { max-width: 640px; }
.disc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-4);
}
.disc-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 24px 24px;
  display: flex; flex-direction: column; gap: var(--s-2);
  position: relative;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.disc-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 36px; height: 2px;
  background: var(--brand-gold);
  transition: width .3s ease;
}
.disc-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.disc-card:hover::before { width: 50%; }
.disc-card .zh {
  font-size: 18px;
  font-weight: 700;
  color: var(--brand-navy);
  margin-top: var(--s-2);
}
.disc-card .de-en {
  font-size: 13px;
  color: var(--brand-blue);
  line-height: 1.5;
  font-weight: 500;
}
.disc-card .desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-top: var(--s-2);
}
.disc-card.is-last {
  /* Single 5th card on its own row — make it tidy */
  grid-column: span 1;
}
.disc-footnote {
  margin-top: var(--s-8);
  color: var(--text-muted);
  font-size: 13.5px;
  max-width: 720px;
}

/* ---------- Notebar (placeholder warning, reusable) ---------- */
.notebar {
  margin-top: var(--s-6);
  padding: 14px 18px;
  border-left: 3px solid var(--brand-gold);
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-size: 13.5px;
  line-height: 1.7;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ---------- Partners section ---------- */
.partners { background: var(--bg-subtle); }
.partner-groups { display: flex; flex-direction: column; gap: var(--s-8); }
.partner-group-label {
  font-size: 14px; color: var(--brand-blue); font-weight: 700;
  letter-spacing: .3px; margin-bottom: var(--s-4);
  display: flex; align-items: center; gap: 12px;
}
.partner-group-label::after {
  content: ""; flex: 1; height: 1px; background: var(--border);
}
.partner-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-3);
}
.partner-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  min-height: 74px;
  display: flex; align-items: center; gap: 14px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.partner-item:hover { border-color: var(--brand-blue); box-shadow: var(--shadow-sm); }
.partner-item.has-logo img {
  height: 36px; width: auto; max-width: 110px;
  object-fit: contain; flex-shrink: 0;
}
.partner-name {
  font-size: 14px; color: var(--brand-navy);
  font-weight: 600; line-height: 1.45;
}
.partner-item.has-logo .partner-name {
  font-size: 12.5px; color: var(--text-muted); font-weight: 500;
}
.partners-note {
  margin-top: var(--s-4);
  color: var(--text-muted);
  font-size: 13px;
  max-width: 640px;
}

/* ---------- Trust / Contact section ---------- */
.factbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-top: var(--s-6);
  margin-bottom: var(--s-8);
}
.factchip {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--bg);
  color: var(--brand-navy);
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: .2px;
  text-decoration: none;
  transition: border-color .15s ease, color .15s ease, background .15s ease;
}
a.factchip:hover {
  border-color: var(--brand-blue);
  color: var(--brand-blue);
  text-decoration: none;
}
span.factchip {
  color: var(--text-muted);
}
.factchip svg { width: 14px; height: 14px; margin-right: 6px; flex-shrink: 0; }
.trust-cta {
  display: flex;
  gap: var(--s-3);
  flex-wrap: wrap;
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .mission-body { grid-template-columns: 1fr; gap: var(--s-8); }
  .board-grid { grid-template-columns: repeat(3, 1fr); }
  .reps-grid { grid-template-columns: repeat(2, 1fr); }
  .disc-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 880px) {
  .page-hero { padding: 56px 0 64px; }
  .fact-chip { font-size: 12.5px; padding: 7px 14px; }
}
@media (max-width: 560px) {
  .board-grid { grid-template-columns: repeat(2, 1fr); }
  .reps-grid { grid-template-columns: 1fr; }
  .disc-grid { grid-template-columns: 1fr; }
  .page-hero h1 { font-size: 26px; }
  .partner-list { grid-template-columns: 1fr; }
}

/* ---------- 区块主题适配：补回 band 纵向 padding ----------
 * 原型 band 是 <section>，吃 site.css 的 `section { padding: 96px 0 }`；
 * 区块版 band 是 <div>，拿不到，需按 band 类显式补回。
 * .page-hero 自带 padding:80px 0 88px（更高优先级），不在此列。 */
.mission,
.org,
.disciplines,
.partners,
.trust { padding-block: 96px; }
@media (max-width: 880px) {
  .mission,
  .org,
  .disciplines,
  .partners,
  .trust { padding-block: 64px; }
}