/* ==========================================================
   洪山庙网站样式 · 简洁中式风
   设计原则：大量留白 / 细线条 / 大字距标题 / 克制的朱红点缀
   ========================================================== */
:root {
  --bg:        #fbfaf8;   /* 页面底色 · 暖白 */
  --surface:   #ffffff;   /* 卡片 */
  --ink:       #23211e;   /* 正文主色 */
  --ink-2:     #57524a;   /* 次级文字 */
  --muted:     #948d81;   /* 辅助信息 */
  --line:      #e8e3da;   /* 分隔线 */
  --accent:    #9d2f2c;   /* 朱红（克制使用） */
  --accent-dk: #7d2220;
  --gold:      #b08d3f;   /* 金线 */
  --radius:    12px;
  --maxw:      1080px;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans:  -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 20px; }
.main-pad { padding-top: 72px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { height: 42px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.4; border-left: 1px solid var(--line); padding-left: 14px; }
.brand-text small { font-size: 12px; color: var(--muted); letter-spacing: 2px; }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
  position: relative; padding: 6px 14px; font-size: 15px; color: var(--ink-2); border-radius: 6px;
}
.site-nav a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 0;
  height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: center;
  transition: transform .25s ease;
}
.site-nav a:hover { color: var(--ink); }
.site-nav a:hover::after, .site-nav a.active::after { transform: scaleX(1); }
.site-nav a.active { color: var(--accent); }
.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer; padding: 10px 6px;
}
.nav-toggle span { display: block; width: 22px; height: 1.5px; background: var(--ink); margin: 5px 0; transition: .25s; }

/* ---------- 首页沉浸式顶栏（融入底图） ---------- */
.header-overlay {
  background: linear-gradient(180deg, rgba(22,26,32,.55) 0%, rgba(22,26,32,.28) 60%, rgba(22,26,32,0) 100%);
  border-bottom-color: transparent;
  backdrop-filter: none;
  transition: background .35s ease, border-color .35s ease;
}
.header-overlay .brand-logo { filter: drop-shadow(0 1px 6px rgba(12,16,22,.6)); }
.header-overlay .brand-text { border-left-color: rgba(255,255,255,.35); }
.header-overlay .brand-text small { color: rgba(255,255,255,.88); }
.header-overlay .site-nav a { color: rgba(255,255,255,.92); }
.header-overlay .site-nav a:hover { color: #fff; }
.header-overlay .site-nav a.active { color: #fff; }
.header-overlay .site-nav a:hover::after, .header-overlay .site-nav a.active::after { background: var(--gold); }
.header-overlay .nav-toggle span { background: #fff; }
.header-overlay.scrolled {
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom-color: var(--line);
}
.header-overlay.scrolled .brand-logo { filter: none; }
.header-overlay.scrolled .brand-text { border-left-color: var(--line); }
.header-overlay.scrolled .brand-text small { color: var(--muted); }
.header-overlay.scrolled .site-nav a { color: var(--ink-2); }
.header-overlay.scrolled .site-nav a:hover { color: var(--ink); }
.header-overlay.scrolled .site-nav a.active { color: var(--accent); }
.header-overlay.scrolled .site-nav a:hover::after, .header-overlay.scrolled .site-nav a.active::after { background: var(--accent); }
.header-overlay.scrolled .nav-toggle span { background: var(--ink); }

/* 移动端菜单展开时：顶栏强制转为实底深字（不再依赖滚动状态），保证菜单默认可读 */
.header-overlay.nav-open {
  background: rgba(255,255,255,.98);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom-color: var(--line);
  box-shadow: 0 2px 10px rgba(35,33,30,.05);
}
.header-overlay.nav-open .brand-logo { filter: none; }
.header-overlay.nav-open .brand-text { border-left-color: var(--line); }
.header-overlay.nav-open .brand-text small { color: var(--muted); }
.header-overlay.nav-open .site-nav a { color: var(--ink-2); }
.header-overlay.nav-open .site-nav a:hover { color: var(--ink); }
.header-overlay.nav-open .site-nav a.active { color: var(--accent); }
.header-overlay.nav-open .nav-toggle span { background: var(--ink); }

/* 汉堡按钮 → 关闭图标 */
.nav-toggle span { transition: transform .25s ease, opacity .2s ease, background .25s ease; }
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- 首页大图 ---------- */
.hero { position: relative; height: clamp(460px, 74vh, 680px); overflow: hidden; }
.hero img { width: 100%; height: 100%; object-fit: cover; object-position: center 38%; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(30,34,40,.14) 0%, rgba(30,34,40,.42) 100%);
}
.hero-inner {
  position: absolute; inset: 0; z-index: 2;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; color: #fff; padding: 0 22px;
}
.hero-eyebrow { font-size: 12.5px; letter-spacing: 6px; text-indent: 6px; opacity: .88; margin-bottom: 20px; font-family: var(--serif); }
.hero-inner h1 {
  font-family: var(--serif); font-size: clamp(34px, 6vw, 54px);
  font-weight: 600; letter-spacing: 16px; text-indent: 16px;
  text-shadow: 0 2px 24px rgba(20,24,30,.35);
}
.hero-rule { width: 1px; height: 40px; background: linear-gradient(180deg, transparent, var(--gold), transparent); margin: 22px 0 18px; }
.hero-sub { font-size: 15px; letter-spacing: 4px; text-indent: 4px; opacity: .92; font-family: var(--serif); }

/* ---------- 区块 ---------- */
.section { padding: 76px 0; }
.section-alt { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { text-align: center; margin-bottom: 46px; }
.section-head .eyebrow {
  display: block; font-size: 12px; letter-spacing: 3px; color: var(--accent);
  text-transform: uppercase; margin-bottom: 12px;
}
.section-head h2 {
  font-family: var(--serif); font-size: 27px; font-weight: 600; letter-spacing: 4px; color: var(--ink);
}
.section-head .rule { width: 36px; height: 1px; background: var(--gold); margin: 16px auto 0; }
.section-head p { color: var(--muted); font-size: 14px; margin-top: 14px; letter-spacing: .5px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block; padding: 10px 26px; border-radius: 6px; font-size: 14.5px;
  background: var(--accent); color: #fff; border: 1px solid var(--accent);
  transition: background .2s ease, border-color .2s ease;
}
.btn:hover { background: var(--accent-dk); border-color: var(--accent-dk); }
.btn-ghost { background: transparent; color: var(--accent); border-color: rgba(157,47,44,.35); }
.btn-ghost:hover { background: rgba(157,47,44,.05); border-color: var(--accent); }
.btn-line { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.btn-line:hover { background: rgba(255,255,255,.14); border-color: #fff; }

/* ---------- 简介 图文 ---------- */
.intro-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 52px; align-items: center; }
.intro-figure { position: relative; }
.intro-figure img { border-radius: var(--radius); }
.intro-figure::after {
  content: ""; position: absolute; inset: 14px -14px -14px 14px;
  border: 1px solid rgba(176,141,63,.5); border-radius: var(--radius); z-index: -1;
}
.intro-text h3 {
  font-family: var(--serif); font-size: 21px; font-weight: 600; letter-spacing: 2px; margin-bottom: 18px; color: var(--ink);
}
.intro-text p { color: var(--ink-2); margin-bottom: 16px; text-align: justify; }
.intro-actions { margin-top: 26px; display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 数字/看点 条 ---------- */
.facts { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.fact { padding: 30px 24px; text-align: center; }
.fact + .fact { border-left: 1px solid var(--line); }
.fact b { display: block; font-family: var(--serif); font-size: 22px; color: var(--accent); letter-spacing: 1px; margin-bottom: 8px; }
.fact span { font-size: 13.5px; color: var(--muted); }

/* ---------- 时间轴（历史沿革） ---------- */
.timeline { max-width: 780px; margin: 0 auto; }
.tl-item { position: relative; padding: 0 0 34px 34px; border-left: 1px solid var(--line); }
.tl-item:last-child { padding-bottom: 0; border-left-color: transparent; }
.tl-item::before {
  content: ""; position: absolute; left: -4.5px; top: 8px; width: 8px; height: 8px;
  border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(157,47,44,.09);
}
.tl-era { font-family: var(--serif); font-size: 17px; letter-spacing: 2px; color: var(--accent); margin-bottom: 6px; }
.tl-item p { color: var(--ink-2); font-size: 15.5px; }

/* ---------- 卡片网格 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; transition: border-color .22s ease, transform .22s ease;
}
.card:hover { border-color: rgba(157,47,44,.35); transform: translateY(-2px); }
.card h3 { font-family: var(--serif); font-size: 18px; font-weight: 600; letter-spacing: 1.5px; margin-bottom: 6px; color: var(--ink); }
.card h3 a:hover { color: var(--accent); }
.card .card-kicker { font-size: 12px; letter-spacing: 2px; color: var(--gold); margin-bottom: 10px; text-transform: uppercase; }
.card p { color: var(--ink-2); font-size: 15px; }

/* ---------- 新闻（列表行） ---------- */
.news-rows { border-top: 1px solid var(--line); }
.news-row {
  display: flex; gap: 26px; padding: 24px 4px; border-bottom: 1px solid var(--line); align-items: baseline;
}
.news-row .rdate { flex: 0 0 96px; text-align: right; color: var(--muted); font-size: 13px; letter-spacing: .5px; }
.news-row .rbody { flex: 1; min-width: 0; }
.news-row h3 { font-family: var(--serif); font-size: 17.5px; font-weight: 600; line-height: 1.6; margin-bottom: 6px; }
.news-row h3 a:hover { color: var(--accent); }
.news-row .rsum { color: var(--muted); font-size: 14.5px; }
.news-row .rmeta { margin-top: 8px; font-size: 12.5px; color: var(--muted); display: flex; gap: 14px; align-items: center; }
.chip { display: inline-block; padding: 2px 10px; border: 1px solid var(--line); border-radius: 999px; font-size: 12px; color: var(--ink-2); background: #fff; }
.chip-active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* 首页新闻卡 */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: border-color .22s ease, transform .22s ease;
}
.news-card:hover { border-color: rgba(157,47,44,.35); transform: translateY(-2px); }
.news-card .thumb { aspect-ratio: 16 / 10; background: #f4f1ea; display: flex; align-items: center; justify-content: center; }
.news-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-card .thumb span { font-family: var(--serif); font-size: 32px; color: #cfc7b6; }
.news-card .body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
.news-card h3 { font-family: var(--serif); font-size: 17px; font-weight: 600; line-height: 1.6; margin-bottom: 8px; }
.news-card h3 a:hover { color: var(--accent); }
.news-card .summary { color: var(--muted); font-size: 14.5px; flex: 1; }
.news-card .news-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; font-size: 12.5px; color: var(--muted); }

/* ---------- 缘起（首页引言） ---------- */
.origin { padding: 92px 0 78px; text-align: center; }
.origin-kicker {
  display: inline-block; font-family: var(--serif); font-size: 13px; letter-spacing: 8px; text-indent: 8px;
  color: var(--gold); padding-bottom: 14px; margin-bottom: 22px; position: relative;
}
.origin-kicker::after {
  content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 28px; height: 1px; background: var(--gold); opacity: .6;
}
.origin h2 { font-family: var(--serif); font-size: 26px; font-weight: 600; letter-spacing: 4px; color: var(--ink); margin-bottom: 26px; }
.origin p { max-width: 620px; margin: 0 auto 34px; color: var(--ink-2); font-size: 16px; line-height: 2.15; text-align: justify; text-align-last: center; }
.origin-actions { display: flex; justify-content: center; gap: 12px; }

/* ---------- 人文三则 ---------- */
.section-tight { padding: 64px 0 84px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); }
.feature { padding: 6px 34px; }
.feature:first-child { padding-left: 0; }
.feature:last-child { padding-right: 0; }
.feature + .feature { border-left: 1px solid var(--line); }
.feature .fk { font-size: 12px; letter-spacing: 4px; color: var(--gold); margin-bottom: 14px; }
.feature h3 { font-family: var(--serif); font-size: 18.5px; font-weight: 600; letter-spacing: 1.5px; color: var(--ink); margin-bottom: 10px; }
.feature p { color: var(--muted); font-size: 14.5px; line-height: 1.95; margin-bottom: 14px; }
.feature .more { font-size: 13.5px; color: var(--accent); letter-spacing: .5px; }
.feature .more:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- 首页新闻（列表行链接） ---------- */
a.news-row { transition: background .2s ease; }
a.news-row:hover { background: rgba(157,47,44,.03); }
a.news-row:hover h3 { color: var(--accent); }
a.news-row .chip { flex: none; align-self: center; }
.news-row .rbody { display: block; }
.news-row .rsum { display: block; }
.empty-note { text-align: center; color: var(--muted); font-size: 14.5px; padding: 34px 0 6px; letter-spacing: 1px; }
.center-more { text-align: center; margin-top: 34px; }
.text-more { color: var(--accent); font-size: 14.5px; letter-spacing: 1px; }
.text-more:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- 歌谣收尾（图底） ---------- */
.quote-banner { position: relative; overflow: hidden; }
.quote-banner img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 30%; }
.quote-banner::after { content: ""; position: absolute; inset: 0; background: rgba(28,32,38,.6); }
.qb-inner { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto; padding: 96px 22px; text-align: center; color: #fff; }
.qb-inner p { font-family: var(--serif); font-size: 17px; letter-spacing: 2px; line-height: 2.3; }
.qb-inner small { display: block; margin-top: 18px; font-size: 12.5px; letter-spacing: 2px; opacity: .72; font-family: var(--sans); }

/* ---------- 内页头 banner ---------- */
.page-banner {
  padding: 62px 0 54px; text-align: center;
  background: #fff; border-bottom: 1px solid var(--line);
}
.page-banner h1 {
  font-family: var(--serif); font-size: 30px; font-weight: 600; letter-spacing: 6px; color: var(--ink);
}
.page-banner .rule { width: 36px; height: 1px; background: var(--gold); margin: 18px auto 14px; }
.page-banner p { color: var(--muted); font-size: 14px; letter-spacing: 1px; }

/* ---------- 文章页 ---------- */
.article { max-width: 780px; margin: 0 auto; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 44px 48px; }
.article h1 { font-family: var(--serif); font-size: 27px; font-weight: 600; line-height: 1.55; letter-spacing: 1px; margin-bottom: 14px; }
.article .article-meta { color: var(--muted); font-size: 13px; padding-bottom: 18px; border-bottom: 1px solid var(--line); margin-bottom: 26px; display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.article .content { color: var(--ink-2); }
.article .content p { margin-bottom: 18px; text-align: justify; }
.article .content img { border-radius: 8px; margin: 16px auto; max-width: 100%; height: auto; display: block; }
.article .content figure { margin: 18px 0; }
.article .content figcaption { text-align: center; font-size: 13px; color: var(--muted); margin-top: 8px; }
.article .content table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14.5px; }
.article .content td, .article .content th { border: 1px solid var(--line); padding: 9px 12px; text-align: left; }
.article .content th { background: #faf8f5; color: var(--ink); font-weight: 600; }
.article .content ul, .article .content ol { padding-left: 24px; margin: 0 0 18px; }
.article .content li { margin-bottom: 6px; }
.article .content blockquote { border-left: 3px solid var(--gold); background: #fdfbf6; padding: 12px 18px; margin: 18px 0; border-radius: 0 8px 8px 0; }
.article .content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.article .content h2, .article .content h3 { font-family: var(--serif); color: var(--ink); margin: 26px 0 12px; letter-spacing: 1px; }
.back-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 30px; color: var(--accent); font-size: 14.5px; }
.back-link:hover { text-decoration: underline; }

/* ---------- 资料卡（引用/说明） ---------- */
.note { border-left: 2px solid var(--gold); background: #fdfbf6; padding: 16px 20px; border-radius: 0 8px 8px 0; color: var(--ink-2); font-size: 14.5px; }
.note b { color: var(--ink); }
.quote {
  font-family: var(--serif); font-size: 16.5px; letter-spacing: 1px; color: var(--ink);
  text-align: center; padding: 34px 20px; line-height: 2.1;
}
.quote small { display: block; font-size: 12.5px; color: var(--muted); letter-spacing: 1px; margin-top: 10px; font-family: var(--sans); }
.pc-br { display: none; }
@media (min-width: 821px) { .pc-br { display: inline; } }

/* ---------- 联系页 ---------- */
.contact-card { max-width: 620px; margin: 0 auto; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 36px 38px; }
.contact-card dl { display: grid; grid-template-columns: 88px 1fr; row-gap: 18px; align-items: baseline; }
.contact-card dt { color: var(--muted); font-size: 14px; }
.contact-card dd { font-size: 16px; word-break: break-all; }

/* ---------- 分页 ---------- */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 40px; }
.pagination a, .pagination span {
  min-width: 38px; text-align: center; padding: 7px 12px; border: 1px solid var(--line);
  border-radius: 6px; font-size: 14px; color: var(--ink-2); background: #fff;
}
.pagination a:hover { border-color: var(--accent); color: var(--accent); }
.pagination .current { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---------- 页脚 ---------- */
.site-footer { background: #201e1b; color: #a9a29a; margin-top: 0; }
.footer-inner { display: grid; grid-template-columns: 1.8fr 1fr 1.2fr; gap: 44px; padding: 60px 22px 44px; max-width: var(--maxw); margin: 0 auto; }
.site-footer h4 { font-family: var(--serif); font-size: 15px; font-weight: 600; letter-spacing: 2px; color: #efe9df; margin-bottom: 18px; }
.site-footer p, .site-footer a { font-size: 14px; line-height: 2; }
.site-footer .footer-col a { display: block; color: #a9a29a; }
.site-footer .footer-col a:hover { color: #fff; }
.copyright { border-top: 1px solid rgba(255,255,255,.09); text-align: center; padding: 20px 22px; font-size: 13px; color: #7d766d; }
.copyright a:hover { color: #fff; }

/* ==========================================================
   移动端适配
   ========================================================== */
@media (max-width: 900px) {
  .grid-3, .grid-2, .news-grid { grid-template-columns: 1fr 1fr; }
  .intro-grid { gap: 36px; }
}
@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 36px rgba(35,33,30,.13);
    padding: 4px 0 10px; display: none;
    max-height: calc(100vh - 64px); overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .site-nav.open { display: flex; }
  .site-nav a {
    padding: 15px 22px; font-size: 16px; font-weight: 500; border-radius: 0;
    border-top: 1px solid var(--line); color: var(--ink);
  }
  .site-nav a:first-child { border-top: 0; }
  .site-nav a::after { display: none; }
  .site-nav a.active { background: rgba(157,47,44,.05); color: var(--accent); }
  .header-inner { min-height: 64px; }
  .brand-text strong { font-size: 18px; letter-spacing: 3px; }
  .brand-logo { height: 36px; }

  .section { padding: 52px 0; }
  .section-head { margin-bottom: 34px; }
  .section-head h2 { font-size: 22px; letter-spacing: 3px; }
  .hero-inner h1 { letter-spacing: 6px; text-indent: 6px; }
  .hero-rule { margin: 18px 0 16px; }

  .intro-grid, .grid-3, .grid-2, .news-grid { grid-template-columns: 1fr; }
  .intro-figure::after { display: none; }
  .facts { grid-template-columns: 1fr; }
  .fact + .fact { border-left: 0; border-top: 1px solid var(--line); }
  .footer-inner { grid-template-columns: 1fr; gap: 30px; padding: 44px 22px 30px; }
  .article { padding: 28px 20px; }
  .article h1 { font-size: 21px; }
  .contact-card { padding: 26px 20px; }
  .contact-card dl { grid-template-columns: 76px 1fr; row-gap: 14px; }
  .news-row { flex-direction: column; gap: 6px; }
  .news-row .rdate { text-align: left; flex: none; }
  .quote { padding: 24px 4px; font-size: 15px; }
  .page-banner { padding: 44px 0 38px; }
  .page-banner h1 { font-size: 23px; letter-spacing: 4px; }
}

/* ---------- 新版首页 · 移动端适配 ---------- */
@media (max-width: 820px) {
  .hero { height: clamp(360px, 58vh, 480px); }
  .hero-eyebrow { letter-spacing: 4px; text-indent: 4px; margin-bottom: 16px; }
  .hero-inner h1 { letter-spacing: 10px; text-indent: 10px; }
  .hero-rule { height: 30px; margin: 16px 0 14px; }

  .origin { padding: 60px 0 52px; }
  .origin h2 { font-size: 21px; letter-spacing: 3px; }
  .origin p { font-size: 15px; margin-bottom: 28px; }

  .section-tight { padding: 48px 0 60px; }
  .features { grid-template-columns: 1fr; }
  .feature { padding: 22px 0; }
  .feature:first-child { padding-top: 0; }
  .feature:last-child { padding-bottom: 0; }
  .feature + .feature { border-left: 0; border-top: 1px solid var(--line); }

  .qb-inner { padding: 64px 22px; }
  .qb-inner p { font-size: 15px; line-height: 2.2; }
}

/* ---------- 沉浸式顶栏 · 移动端 ---------- */
@media (max-width: 820px) {
  .main-pad { padding-top: 64px; }
  .header-overlay .brand-text { display: none; }
  .brand-logo { height: 38px; }
  .hero { height: clamp(390px, 62vh, 520px); }
}