:root {
  --paper:   #faf8f4;   /* 纸白底 */
  --ink:     #2b2723;   /* 墨色正文 */
  --muted:   #8b8378;   /* 弱化文字 */
  --accent:  #8f1f2c;   /* 印章红（取自 LOGO） */
  --gold:    #a8813f;   /* 茶金 */
  --line:    #e8e2d8;   /* 细分隔线 */
  --serif:   Georgia, "Songti SC", "STSong", "SimSun", serif;
  --sans:    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s; }
p { margin: 0 0 1.2em; }

/* ---------- 头部 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(250, 248, 244, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s;
}
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: 0 2px 18px rgba(43, 39, 35, .05); }
.header-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 32px;
  height: 76px; display: flex; align-items: center; gap: 40px;
}
.brand { flex-shrink: 0; }
.brand-logo { height: 40px; width: auto; max-height: 60px; }   /* LOGO 最大不超过 60px */
.main-nav { display: flex; gap: 26px; margin-left: auto; }
.main-nav a {
  font-size: 15px; letter-spacing: 2px; color: #5a534b; padding: 4px 0;
  position: relative;
}
.main-nav a::after {
  content: ""; position: absolute; left: 50%; bottom: -4px;
  width: 0; height: 1px; background: var(--accent); transition: all .3s;
  transform: translateX(-50%);
}
.main-nav a:hover, .main-nav a.on { color: var(--ink); }
.main-nav a.on::after, .main-nav a:hover::after { width: 100%; }
.header-tel { text-align: right; line-height: 1.3; flex-shrink: 0; }
.header-tel .tel-label { display: block; font-size: 11px; color: var(--muted); letter-spacing: 3px; }
.header-tel .tel-num { font-family: var(--serif); font-size: 18px; color: var(--accent); letter-spacing: 1px; }
.nav-toggle { display: none; }

/* ---------- 页面通用 ---------- */
.page-body { padding-top: 76px; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 32px; }
.narrow { max-width: 780px; margin: 0 auto; padding: 0 32px; }

.page-hero { padding: 110px 0 70px; text-align: center; }
.page-hero h1 {
  font-family: var(--serif); font-weight: 500; font-size: 34px;
  letter-spacing: 10px; margin-bottom: 18px;
}
.page-hero .sub { color: var(--muted); font-size: 14px; letter-spacing: 4px; }
.rule {
  width: 36px; height: 2px; background: var(--accent);
  margin: 28px auto 0; border: 0;
}

.section { padding: 90px 0; }
.section-title { text-align: center; margin-bottom: 64px; }
.section-title h2 {
  font-family: var(--serif); font-weight: 500; font-size: 26px; letter-spacing: 8px;
}
.section-title .en {
  display: block; margin-top: 10px; font-size: 12px; color: var(--muted);
  letter-spacing: 5px; text-transform: uppercase;
}

/* ---------- Hero ---------- */
.hero {
  min-height: calc(100vh - 76px);
  display: flex; align-items: center; justify-content: center;
  text-align: center; position: relative; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 45% at 72% 30%, rgba(143, 31, 44, .06), transparent 70%),
    radial-gradient(ellipse 50% 40% at 25% 75%, rgba(168, 129, 63, .07), transparent 70%);
  pointer-events: none;
}
.hero-inner { position: relative; padding: 60px 32px; max-width: 900px; }
.hero-kicker {
  font-size: 14px; letter-spacing: 8px; color: var(--accent); margin-bottom: 34px;
}
.hero h1 {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(38px, 6vw, 64px); letter-spacing: 14px; line-height: 1.5;
  margin-bottom: 30px;
}
.hero .lede {
  color: var(--muted); font-size: 17px; letter-spacing: 3px; margin-bottom: 56px;
}
.hero-actions { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 44px; font-size: 14px; letter-spacing: 4px;
  border: 1px solid var(--ink); transition: all .3s;
}
.btn-dark { background: var(--ink); color: var(--paper); }
.btn-dark:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-line:hover { border-color: var(--accent); color: var(--accent); }
.hero-scroll {
  position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%);
  font-size: 11px; letter-spacing: 4px; color: var(--muted);
  writing-mode: vertical-lr;
}
.hero-scroll::after {
  content: ""; display: block; width: 1px; height: 44px; margin: 10px auto 0;
  background: linear-gradient(var(--muted), transparent);
  animation: drip 2s ease-in-out infinite;
}
@keyframes drip { 0% { transform: scaleY(0); transform-origin: top; } 55% { transform: scaleY(1); transform-origin: top; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- 数字带 ---------- */
.stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats-inner {
  max-width: 1100px; margin: 0 auto; padding: 58px 32px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center;
}
.stat b {
  display: block; font-family: var(--serif); font-weight: 500;
  font-size: 44px; color: var(--accent); line-height: 1.2;
}
.stat b i { font-style: normal; font-size: 18px; margin-left: 4px; color: var(--muted); }
.stat span { font-size: 13px; letter-spacing: 3px; color: var(--muted); display: block; margin-top: 8px; }

/* ---------- 两栏叙述 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.split h3 { font-family: var(--serif); font-weight: 500; font-size: 24px; letter-spacing: 5px; margin-bottom: 24px; }
.split .txt { color: #55504a; }
.split.reverse .txt { order: -1; }

/* ---------- 荣誉 ---------- */
.honors { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.honor { background: var(--paper); padding: 44px 28px; text-align: center; }
.honor .mark { font-family: var(--serif); font-size: 15px; color: var(--gold); letter-spacing: 2px; display: block; margin-bottom: 16px; }
.honor p { font-size: 14px; line-height: 1.8; margin: 0; color: #55504a; }

/* ---------- 产品系列 ---------- */
.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; }
.product-card { text-align: center; padding: 52px 24px; border: 1px solid var(--line); transition: all .35s; background: #fffdf9; }
.product-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: 0 18px 40px rgba(43,39,35,.07); }
.product-card .glyph {
  font-family: var(--serif); font-size: 40px; color: var(--accent); line-height: 1;
  display: block; margin-bottom: 22px;
}
.product-card h3 { font-family: var(--serif); font-weight: 500; font-size: 19px; letter-spacing: 4px; margin-bottom: 12px; }
.product-card p { font-size: 13px; color: var(--muted); margin: 0; letter-spacing: 1px; }
.more-link { display: block; text-align: center; margin-top: 56px; }
.more-link a { font-size: 14px; letter-spacing: 4px; color: var(--accent); border-bottom: 1px solid transparent; padding-bottom: 4px; }
.more-link a:hover { border-bottom-color: var(--accent); }

/* ---------- 加盟 CTA 带 ---------- */
.cta-band { background: var(--ink); color: #f5f1ea; text-align: center; }
.cta-band .inner { max-width: 760px; margin: 0 auto; padding: 100px 32px; }
.cta-band h2 { font-family: var(--serif); font-weight: 500; font-size: 30px; letter-spacing: 8px; margin-bottom: 22px; }
.cta-band p { color: #b3aa9e; font-size: 15px; letter-spacing: 2px; margin-bottom: 44px; }
.cta-band .btn { border-color: #f5f1ea; color: #f5f1ea; }
.cta-band .btn:hover { background: var(--accent); border-color: var(--accent); }

/* ---------- 正文页 ---------- */
.article { padding: 90px clamp(20px, 5vw, 32px) 110px; }
.article .lead { font-size: 17px; color: var(--ink); }
.article p.txt { color: #55504a; text-align: justify; }

.article h3.h3-block {
  font-family: var(--serif); font-weight: 500; font-size: 20px;
  letter-spacing: 4px; margin: 52px 0 24px; padding-left: 16px;
  border-left: 3px solid var(--accent);
}

/* 加盟页电话块 */
.join-tel { margin-top: 70px; padding: 44px 24px; border: 1px solid var(--line); background: #fffdf9; text-align: center; }
.join-tel-label { font-size: 13px; letter-spacing: 6px; color: var(--muted); margin-bottom: 10px; }
.join-tel-nums {
  display: flex; align-items: baseline;
  flex-wrap: nowrap; gap: clamp(14px, 3vw, 44px);
  font-family: var(--serif); font-size: clamp(13px, 1.6vw, 19px);
  letter-spacing: 1px; white-space: nowrap;
}
.join-tel-item { display: inline-block; white-space: nowrap; margin: 0 auto; }
.join-tel-nums a { color: var(--accent); }
.join-tel-nums a:hover { text-decoration: underline; }
/* 极窄屏幕：不换行，允许横向滑动 */
@media (max-width: 520px) {
  .join-tel-nums { overflow-x: auto; padding: 2px 4px 8px; font-size: 12px; gap: 12px; -webkit-overflow-scrolling: touch; }
}

/* 产品系列页 */
.series-block { padding: 80px 0; }
.series-block.alt { background: #fffdf9; }
.series-visual { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; min-height: 260px; }
.series-glyph {
  font-family: var(--serif); font-size: 96px; line-height: 1; color: var(--accent);
  width: 168px; height: 168px; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: 50%; background: var(--paper);
}
.series-en { font-size: 11px; letter-spacing: 6px; color: var(--muted); text-transform: uppercase; }
.series-name { font-family: var(--serif); font-weight: 500; font-size: 26px; letter-spacing: 6px; margin-bottom: 18px; }
.points { list-style: none; margin: 22px 0 34px; }
.points li { padding-left: 22px; position: relative; color: #55504a; font-size: 14px; letter-spacing: 2px; margin-bottom: 8px; }
.points li::before { content: ""; position: absolute; left: 0; top: 12px; width: 8px; height: 8px; border: 1px solid var(--gold); border-radius: 50%; }
.series-cta { font-size: 14px; letter-spacing: 4px; color: var(--accent); border-bottom: 1px solid transparent; padding-bottom: 4px; }
.series-cta:hover { border-bottom-color: var(--accent); }

.map-note { font-size: 13px; color: var(--muted); letter-spacing: 1px; }

/* 滚动淡入 */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.fade-in.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .fade-in { opacity: 1; transform: none; transition: none; } }

.culture-list { border-top: 1px solid var(--line); }
.culture-item { display: grid; grid-template-columns: 220px 1fr; gap: 48px; padding: 40px 0; border-bottom: 1px solid var(--line); }
.culture-item dt { font-family: var(--serif); font-size: 19px; letter-spacing: 4px; }
.culture-item dt small { display: block; font-family: var(--sans); font-size: 12px; color: var(--muted); letter-spacing: 2px; margin-top: 6px; }
.culture-item dd { color: #55504a; margin: 0; }

/* 加盟星级表 */
.star-table { width: 100%; border-collapse: collapse; margin: 30px 0 10px; }
.star-table th, .star-table td { border: 1px solid var(--line); padding: 14px 18px; font-size: 14px; text-align: center; }
.star-table th { background: #fffdf9; font-family: var(--serif); letter-spacing: 2px; font-weight: 500; }
.star-table td { color: #55504a; }
.num-list { counter-reset: n; list-style: none; }
.num-list li { position: relative; padding-left: 44px; margin-bottom: 14px; color: #55504a; }
.num-list li::before {
  counter-increment: n; content: counter(n, decimal-leading-zero);
  position: absolute; left: 0; top: 2px; font-family: var(--serif); color: var(--accent); font-size: 15px;
}

/* 图集 */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.gallery-grid figure { overflow: hidden; cursor: zoom-in; background: #efe9df; }
.gallery-grid img { width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: transform .5s ease; }
.gallery-grid figure:hover img { transform: scale(1.04); }

/* lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(24, 20, 17, .94);
  display: none; align-items: center; justify-content: center; flex-direction: column; gap: 18px;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 88vw; max-height: 80vh; }
.lightbox .lb-close { position: absolute; top: 24px; right: 36px; color: #fff; font-size: 34px; cursor: pointer; line-height: 1; font-family: var(--serif); }
.lightbox .lb-nav { color: #cfc7ba; font-size: 14px; letter-spacing: 4px; display: flex; gap: 40px; user-select: none; }
.lightbox .lb-nav span { cursor: pointer; padding: 8px 16px; }
.lightbox .lb-nav span:hover { color: #fff; }

/* 联系页 */
.contact-blocks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.contact-block { background: var(--paper); padding: 48px 34px; }
.contact-block h3 { font-family: var(--serif); font-weight: 500; font-size: 17px; letter-spacing: 4px; margin-bottom: 18px; color: var(--accent); }
.contact-block p { color: #55504a; margin: 0 0 6px; }

/* 资讯列表 */
.news-list { border-top: 1px solid var(--line); }
.news-item { display: flex; align-items: baseline; gap: 40px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.news-item time { font-family: var(--serif); color: var(--muted); font-size: 14px; letter-spacing: 1px; flex-shrink: 0; }
.news-item h3 { font-family: var(--serif); font-weight: 500; font-size: 18px; letter-spacing: 2px; }
.news-item a:hover h3 { color: var(--accent); }

/* ---------- 页脚 ---------- */
.site-footer { background: #221e1a; color: #9c948a; margin-top: 0; }
.footer-inner {
  max-width: 1200px; margin: 0 auto; padding: 80px 32px 60px;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 48px;
}
.footer-logo { height: 48px; max-height: 60px; width: auto; margin-bottom: 22px; }
.footer-slogan { font-size: 13px; line-height: 2.1; letter-spacing: 2px; }
.footer-col h4 { color: #e8e1d6; font-family: var(--serif); font-weight: 500; font-size: 15px; letter-spacing: 4px; margin-bottom: 20px; }
.footer-col p, .footer-col a { display: block; font-size: 13px; line-height: 2.2; color: #9c948a; }
.footer-col a:hover { color: #fff; }
.footer-cta { margin-top: 16px; color: var(--gold) !important; letter-spacing: 2px; }
.footer-bar { border-top: 1px solid rgba(255,255,255,.08); }
.footer-bar { max-width: 1200px; margin: 0 auto; padding: 24px 32px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 12px; color: #6d665d; letter-spacing: 1px; }
.footer-bar a { color: #6d665d; }
.footer-bar a:hover { color: #fff; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .split, .split.reverse { grid-template-columns: 1fr; gap: 28px; }
  .split.reverse .txt { order: 0; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .honors, .contact-blocks { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .header-tel { display: none; }
  .culture-item { grid-template-columns: 1fr; gap: 8px; padding: 30px 0; }
}
@media (max-width: 900px) {
  .header-inner { justify-content: space-between; gap: 16px; }
  .header-tel { display: none; }
  .main-nav {
    position: fixed; top: 76px; right: 0; width: min(78vw, 340px);
    flex-direction: column; gap: 0; background: #fffdf9;
    border-left: 1px solid var(--line); height: calc(100vh - 76px);
    padding: 20px 0; transform: translateX(100%); transition: transform .3s;
    box-shadow: -10px 0 40px rgba(43,39,35,.08); overflow-y: auto;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav a { padding: 15px 36px; font-size: 15px; }
  .main-nav a::after { display: none; }
  .main-nav a.on { color: var(--accent); }
  .nav-toggle {
    display: flex; flex-direction: column; gap: 5px; background: none; border: 0;
    padding: 8px; cursor: pointer;
  }
  .nav-toggle span { width: 22px; height: 1.5px; background: var(--ink); transition: all .3s; }
}
@media (max-width: 640px) {
  .header-inner { height: 62px; padding: 0 20px; gap: 16px; }
  .brand-logo { height: 44px; max-height: 60px; }
  .page-body { padding-top: 62px; }
  .main-nav { top: 62px; height: calc(100vh - 62px); width: min(76vw, 300px); }
  .main-nav a { padding: 14px 32px; }
  /* 大标语单行375px不折叠 */
  .hero-inner { padding: 40px 16px; }
  .hero h1 { font-size: clamp(34px, 10vw, 40px); letter-spacing: 6px; white-space: nowrap; }
  .hero .lede { font-size: 15px; letter-spacing: 2px; }
  .hero-actions .btn { padding: 12px 30px; }
  .page-hero h1 { font-size: 28px; letter-spacing: 8px; white-space: nowrap; }
  .section-title h2 { font-size: 20px; letter-spacing: 4px; }
  .cta-band .inner { padding: 72px 20px; }
  .cta-band h2 { font-size: 21px; letter-spacing: 5px; white-space: nowrap; }
  .series-name { font-size: 21px; letter-spacing: 4px; }
  .products-grid, .honors, .contact-blocks, .gallery-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 36px; padding: 56px 24px 40px; }
  .footer-bar { flex-direction: column; }
  .section { padding: 60px 0; }
  .page-hero { padding: 70px 0 46px; }
  .news-item { flex-direction: column; gap: 6px; }
}