:root {
  --paper: #f3ead8;
  --paper-2: #efe4cf;
  --ink: #1c1612;
  --ink-soft: #4a4038;
  --muted: #7a6e62;
  --vermilion: #b23a21;
  --vermilion-dark: #8c2c18;
  --line: #d7cbb6;
  --card: #faf6ee;
  --ok: #2d6a4f;
  --ng: #9b2226;
  --text: var(--ink);
  --bg: var(--paper);
  --brand: var(--vermilion);
  --page: 1440px;
  --gutter: 48px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.8;
  font-family: "Palatino Linotype", "Songti SC", "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
}
button, input, select, textarea, .btn, .nav-toggle, .main-nav a, .news-row small {
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; orphans: 3; widows: 3; }
h1, h2, h3 { line-height: 1.2; font-weight: 600; letter-spacing: 0.04em; }
.container { width: min(var(--page), calc(100% - var(--gutter) * 2)); margin: 0 auto; }

.masthead {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(243, 234, 216, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar {
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 76px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.seal {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1.5px solid var(--vermilion);
  color: var(--vermilion);
  font-size: 22px;
}
.brand-text { display: grid; gap: 0; }
.brand-text strong { font-size: 20px; }
.brand-text small {
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.04em;
}
.main-nav { display: flex; gap: 4px; margin-left: auto; }
.main-nav a {
  padding: 8px 12px;
  color: var(--ink-soft);
  font-size: 14px;
}
.main-nav a.is-on, .main-nav a:hover { color: var(--vermilion); }
.nav-toggle { display: none; border: 1px solid var(--ink); background: transparent; padding: 8px 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 14px;
}
.btn-vermilion, .btn-accent, .btn-primary { background: var(--vermilion); color: #fff; }
.btn-ink { background: var(--ink); color: var(--paper); }
.btn-line, .btn-light, .btn-ghost { border-color: var(--ink); background: transparent; }
.text-link { color: var(--vermilion); border-bottom: 1px solid currentColor; padding-bottom: 2px; }

.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 96px;
  border-bottom: 1px solid var(--line);
}
.hero-grid { position: relative; z-index: 1; }
.hero.has-photo {
  padding: 0;
  min-height: min(78vh, 760px);
  display: grid;
  align-items: end;
  color: #f3ead8;
}
.hero-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero.has-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(28, 22, 18, 0.82) 0%, rgba(28, 22, 18, 0.45) 52%, rgba(28, 22, 18, 0.18) 100%);
}
.hero.has-photo .hero-grid { padding: 96px 0 72px; }
.hero.has-photo .hero-lead { color: rgba(243, 234, 216, 0.9); }
.hero.has-photo .btn-line { border-color: #f3ead8; color: #f3ead8; }
.hero-place {
  letter-spacing: 0.28em;
  color: var(--vermilion);
  font-size: 13px;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  margin: 0 0 24px;
}
.hero-lead { font-size: 20px; color: var(--ink-soft); max-width: 36em; }
.hero-actions { display: flex; gap: 14px; margin-top: 32px; }
.hero-watermark {
  position: absolute;
  right: 4vw;
  top: 8%;
  font-size: min(42vw, 420px);
  line-height: 1;
  color: rgba(178, 58, 33, 0.08);
  pointer-events: none;
  font-weight: 700;
}

.section { padding: 88px 0; }
.paper-alt { background: var(--paper-2); }
.section-title { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 32px; }
.section-title h2 { margin: 0; font-size: clamp(26px, 3vw, 36px); }
.kicker {
  margin: 0 0 10px;
  color: var(--vermilion);
  letter-spacing: 0.28em;
  font-size: 12px;
  font-family: "Microsoft YaHei", sans-serif;
}
.lead-text { font-size: inherit; max-width: none; }
.section-actions { margin: 36px 0 0; }

.essay-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.essay-grid em {
  display: block;
  font-style: normal;
  font-size: 28px;
  color: var(--vermilion);
  margin-bottom: 8px;
}
.about-split, .split { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 48px; align-items: start; }
.quote-card {
  border-left: 3px solid var(--vermilion);
  padding: 8px 0 8px 24px;
  font-size: 22px;
}
.quote-card small { display: block; margin-top: 16px; color: var(--muted); font-size: 13px; }

.service-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.service-list a {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  font-size: 22px;
}
.service-list a span { color: var(--muted); font-size: 15px; font-family: "Microsoft YaHei", sans-serif; }
.service-list a:hover { color: var(--vermilion); }

.service-catalog { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.service-catalog a { background: var(--card); padding: 28px 24px; }
.service-catalog a:hover { background: #fff; }
.service-catalog h3 { margin: 0 0 8px; font-size: 20px; }
.service-catalog p { margin: 0; color: var(--muted); font-family: "Microsoft YaHei", sans-serif; }

.story-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.story-card {
  background: var(--card);
  padding: 28px 24px 32px;
  border: 1px solid var(--line);
}
.story-card.tall { min-height: 220px; }
.story-card h3 { margin: 0 0 10px; }

.page-banner {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--line);
}
.page-banner h1 { font-size: clamp(28px, 4.5vw, 48px); margin: 8px 0; }
.page-banner.has-photo {
  position: relative;
  padding: 0;
  border-bottom: 0;
  color: #f3ead8;
  overflow: hidden;
}
.page-banner.has-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(28, 22, 18, 0.88) 0%, rgba(28, 22, 18, 0.52) 38%, rgba(28, 22, 18, 0.18) 100%);
  pointer-events: none;
}
.banner-photo {
  width: 100%;
  height: 360px;
  object-fit: cover;
  object-position: 68% 40%;
  display: block;
}
.banner-photo[src$="case-ed.jpg"] { object-position: 78% 42%; }
.banner-photo[src$="solution-plant.jpg"] { object-position: 80% 45%; }
.banner-copy {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 56px 0 36px;
  background: none;
}
.banner-copy .crumb, .banner-copy .crumb a, .banner-copy p { color: rgba(243, 234, 216, 0.82); }
.banner-copy h1 { color: #fff; }

.shot {
  margin: 0 0 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #1c1612;
}
.shot img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  display: block;
}
.role-card .shot, .story-card .shot, .service-catalog .shot { margin: 0 0 14px; }
.role-card .shot img { height: 210px; }
.service-catalog .shot img { height: 180px; }
.story-card .shot img { height: 240px; }
.pic-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 0 0 36px;
}
.pic-row .shot { margin: 0; }
.pic-row .shot img { height: 240px; }
.rec-later { margin-top: 28px; }
.crumb { color: var(--muted); font-size: 13px; font-family: "Microsoft YaHei", sans-serif; }
.prose { max-width: 760px; }
.prose a { text-decoration: underline; }
.prose-wide { max-width: none; }
.form { display: grid; gap: 14px; background: var(--card); padding: 28px; border: 1px solid var(--line); }
.form input, .form select, .form textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: #fff;
  font: inherit;
}
.notice { padding: 10px 12px; font-family: "Microsoft YaHei", sans-serif; }
.notice.ok { background: #e8f5ee; color: var(--ok); }
.notice.err { background: #fdecea; color: var(--ng); }
.table { width: 100%; border-collapse: collapse; background: var(--card); font-family: "Microsoft YaHei", sans-serif; }
.table th, .table td { border-bottom: 1px solid var(--line); padding: 10px; text-align: left; vertical-align: top; }

.news-list { border-top: 1px solid var(--line); }
.news-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.news-row:hover strong { color: var(--vermilion); }
.news-row time {
  font-family: "Times New Roman", serif;
  color: var(--muted);
  padding-top: 4px;
}
.news-row strong { display: block; margin-bottom: 4px; }
.news-row small { color: var(--muted); font-size: 14px; }

.pager {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 28px 0 8px;
  font-family: "Microsoft YaHei", sans-serif;
}
.pager a, .pager span {
  min-width: 40px;
  padding: 8px 12px;
  text-align: center;
  border: 1px solid var(--line);
}
.pager .is-on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.pager-meta { text-align: center; color: var(--muted); font-size: 13px; font-family: "Microsoft YaHei", sans-serif; }

.role-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.role-card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 24px;
  display: grid;
  align-content: start;
  gap: 8px;
}
.role-card h3 { margin: 0; font-size: 24px; }
.role-card p { margin: 0 0 8px; color: var(--ink-soft); }
.role-jump {
  position: sticky;
  top: 76px;
  z-index: 30;
  background: rgba(243, 234, 216, 0.94);
  border-bottom: 1px solid var(--line);
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}
.role-jump .container {
  display: flex;
  gap: 8px;
  padding: 10px 0;
  overflow-x: auto;
}
.role-jump a {
  white-space: nowrap;
  padding: 8px 14px;
  border: 1px solid var(--line);
  font-size: 14px;
}
.role-jump a:hover { color: var(--vermilion); border-color: var(--vermilion); }
.role-block { scroll-margin-top: 132px; padding: 64px 0; border-bottom: 1px solid var(--line); }
.role-layout { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px; align-items: start; }
.spec-list {
  margin: 0 0 24px;
  padding-left: 1.2em;
  color: var(--ink-soft);
}
.spec-list li { margin: 0 0 10px; }
.talking-points {
  margin-top: 16px;
  padding: 16px 18px 8px;
  background: var(--card);
  border: 1px solid var(--line);
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}
.talking-points h3 { margin: 0 0 8px; font-size: 15px; }
.talking-points ol { margin: 0 0 12px; padding-left: 1.2em; color: var(--ink-soft); font-size: 14px; }
.talking-points li { margin: 0 0 6px; }

.site-footer {
  background: #241c16;
  color: rgba(243, 234, 216, 0.72);
  padding: 56px 0 0;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 36px; }
.footer-mark { font-size: 36px; color: #f3ead8; margin: 0 0 12px; }
.site-footer h3, .site-footer strong { color: #f3ead8; display: block; margin-bottom: 12px; }
.site-footer a, .site-footer p { display: block; margin: 0 0 8px; }
.site-footer a:hover { color: #fff; }
.foot-bottom {
  border-top: 1px solid rgba(243, 234, 216, 0.12);
  padding: 16px 0;
  display: flex;
  gap: 16px;
  font-size: 13px;
}

.admin-app { min-height: 100vh; background: var(--paper); font-family: "Microsoft YaHei", sans-serif; }
.admin-bar { background: #241c16; color: #f3ead8; }
.admin-bar-inner { display: flex; justify-content: space-between; align-items: center; min-height: 56px; }
.admin-bar nav { display: flex; gap: 18px; }
.admin-bar a { color: rgba(243, 234, 216, 0.8); }
.admin-main { padding: 32px 0 64px; }
.admin-head { display: flex; justify-content: space-between; align-items: center; }
.admin-app .form { max-width: 760px; }
.admin-app .check { display: flex; align-items: center; gap: 8px; }
.admin-app .check input { width: auto; }
.inline { display: inline; }
.inline button { border: 0; background: none; color: var(--ng); cursor: pointer; font: inherit; padding: 0; }
.admin-body { min-height: 100vh; display: grid; place-items: center; background: var(--paper); }
.admin-box { width: min(420px, calc(100% - 32px)); }

@media (max-width: 1200px) {
  :root { --gutter: 32px; }
  .service-catalog, .essay-grid, .role-grid, .pic-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 1100px) {
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
    min-height: 44px;
    min-width: 44px;
    align-items: center;
    justify-content: center;
  }
  .topbar { gap: 12px; }
  .topbar .btn-ink { display: none; }
  .main-nav {
    display: none;
    position: absolute;
    left: 0; right: 0; top: 76px;
    background: var(--paper);
    flex-direction: column;
    padding: 8px 8px 16px;
    border-bottom: 1px solid var(--line);
    gap: 0;
    margin-left: 0;
  }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 14px 16px; font-size: 16px; }
  body.nav-open { overflow: hidden; }
}

@media (max-width: 760px) {
  :root { --gutter: 16px; }
  .hero { padding: 40px 0 48px; }
  .hero-watermark { display: none; }
  .hero-lead { font-size: 17px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; min-height: 48px; }
  .section { padding: 40px 0; }
  .section-title { display: grid; align-items: start; }
  .page-banner { padding: 32px 0 24px; }
  .essay-grid, .about-split, .split, .story-grid, .service-catalog, .footer-grid, .news-row, .role-grid, .role-layout, .pic-row {
    grid-template-columns: 1fr;
    display: grid;
  }
  .hero.has-photo { min-height: 0; }
  .hero.has-photo .hero-grid { padding: 48px 0 36px; max-width: none; }
  .hero.has-photo::after {
    background: linear-gradient(180deg, rgba(28, 22, 18, 0.4), rgba(28, 22, 18, 0.82));
  }
  .banner-photo { height: 220px; }
  .shot img, .role-card .shot img, .service-catalog .shot img, .story-card .shot img, .pic-row .shot img { height: 200px; }
  .role-jump { top: 76px; }
  .role-block { scroll-margin-top: 128px; padding: 40px 0; }
  .service-list a { flex-direction: column; font-size: 18px; padding: 18px 0; }
  .hero h1 { font-size: 30px; }
  .quote-card { font-size: 18px; }
  .form input, .form select, .form textarea { font-size: 16px; }
  .pager a, .pager span { min-width: 36px; padding: 10px; }
  .admin-bar-inner { flex-wrap: wrap; gap: 8px; padding: 8px 0; }
  .admin-app .table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  body {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
}