:root {
  --primary: #0a2e6e;
  --primary-dark: #071f4d;
  --primary-light: #1a4a9e;
  --accent: #c9a86a;
  --accent-dark: #a9874b;
  --bg: #ffffff;
  --bg-alt: #f4f7fb;
  --text: #1f2d3d;
  --text-muted: #5b6b7e;
  --border: #e5eaf1;
  --shadow: 0 8px 30px rgba(10, 46, 110, 0.08);
  --radius: 14px;
  --header-h: 72px;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-base: 16px;
  /* 各板块独立基准字号（后台可分别调整） */
  --fs-nav: 16px;
  --fs-hero: 16px;
  --fs-about: 16px;
  --fs-business: 16px;
  --fs-news: 16px;
  --fs-ir: 16px;
  --fs-esg: 16px;
  --fs-contact: 16px;
  --fs-footer: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: var(--font-base); }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- 头部导航 ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--nav-bg);
  font-size: var(--fs-nav);
  backdrop-filter: blur(8px);
  z-index: 100;
  transition: box-shadow .3s, background .3s;
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,.15); }

.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }

.brand { display: flex; align-items: center; gap: 10px; color: var(--nav-text); }
.brand-logo { height: 38px; width: auto; }
.brand-text { font-size: 1.25em; font-weight: 700; letter-spacing: 1px; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  color: var(--nav-text);
  opacity: .85;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.9375em;
  transition: color .2s, background .2s;
}
.nav a:hover, .nav a.active { color: var(--nav-text); opacity: 1; background: rgba(255,255,255,.12); }

.header-actions { display: flex; align-items: center; gap: 12px; }

.lang-switch {
  background: transparent;
  border: 1px solid var(--nav-text);
  color: var(--nav-text);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8125em;
  cursor: pointer;
  letter-spacing: 1px;
  transition: all .2s;
}
.lang-switch:hover { background: var(--nav-text); color: var(--nav-bg); }

.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.menu-toggle span { width: 24px; height: 2px; background: var(--nav-text); border-radius: 2px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 72px) 0 90px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 55%, var(--primary-light) 100%);
  color: #fff;
  font-size: var(--fs-hero);
  overflow: hidden;
}
.hero-slides { position: absolute; inset: 0; z-index: 1; }
.hero-slide {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity .9s ease;
  background-size: cover;
  background-position: center;
}
.hero-slide.active { opacity: 1; }
.hero-slide:nth-child(1) { background-image: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%); }
.hero-slide:nth-child(2) { background-image: linear-gradient(135deg, #0a2e6e 0%, #1a4a9e 50%, #2b5cb8 100%); }
.hero-slide:nth-child(3) { background-image: linear-gradient(135deg, #071f4d 0%, #0a2e6e 50%, #1a4a9e 100%); }
.hero-slide:nth-child(4) { background-image: linear-gradient(135deg, #123a80 0%, #0a2e6e 55%, #1a4a9e 100%); }
.hero-slide:nth-child(5) { background-image: linear-gradient(135deg, #0a2e6e 0%, #164088 60%, #2b5cb8 100%); }
.hero::after {
  content: "";
  position: absolute; inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero-inner { position: relative; z-index: 3; text-align: center; max-width: 860px; }
.hero-dots { display: flex; justify-content: center; gap: 10px; margin-top: 30px; }
.hero-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.35); cursor: pointer; transition: all .3s; }
.hero-dot.active { background: #fff; width: 26px; border-radius: 6px; }
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 4; width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,.14); color: #fff; border: 1px solid rgba(255,255,255,.25);
  font-size: 1.625em; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .25s;
}
.hero-arrow:hover { background: rgba(255,255,255,.3); }
.hero-prev { left: 26px; }
.hero-next { right: 26px; }
.hero-title { font-size: clamp(2em, 5vw, 3.25em); font-weight: 800; line-height: 1.25; letter-spacing: 1px; }
.hero-subtitle { font-size: 1.125em; color: rgba(255,255,255,.85); max-width: 640px; margin: 20px auto 32px; }

.btn { display: inline-block; padding: 13px 32px; border-radius: 30px; font-size: 0.9375em; font-weight: 600; transition: all .25s; cursor: pointer; }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 8px 20px rgba(201,168,106,.35); }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); }

.hero-stats {
  position: relative; z-index: 3;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px; margin-top: 64px;
}
.hero-stat { text-align: center; }
.hero-stat-value { font-size: 1.875em; font-weight: 800; color: var(--accent); }
.hero-stat-label { font-size: 0.875em; color: rgba(255,255,255,.75); margin-top: 4px; text-align: left; }

/* ---------- 通用区块 ---------- */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }
.section-ir { background: linear-gradient(180deg, #fff 0%, #f4f7fb 100%); }
/* 各内容板块独立基准字号 */
#about { font-size: var(--fs-about); }
#business { font-size: var(--fs-business); }
#news { font-size: var(--fs-news); }
#ir { font-size: var(--fs-ir); }
#esg { font-size: var(--fs-esg); }
#contact { font-size: var(--fs-contact); }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-eyebrow { display: inline-block; font-size: 0.875em; letter-spacing: 3px; color: var(--accent-dark); font-weight: 600; text-transform: uppercase; margin-bottom: 12px; }
.section-title { font-size: clamp(1.625em, 3.4vw, 2.375em); font-weight: 800; color: var(--primary); line-height: 1.35; }

/* ---------- 关于 ---------- */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.about-text { font-size: 1em; color: var(--text-muted); margin-bottom: 32px; }
.about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.about-point { padding: 22px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); transition: all .25s; }
.about-point:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: transparent; }
.about-point-icon { width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: rgba(10,46,110,.08); color: var(--primary); margin-bottom: 14px; }
.about-point-icon svg { width: 24px; height: 24px; }
.about-point h4 { font-size: 1em; margin-bottom: 8px; color: var(--primary); }
.about-point p { font-size: 0.875em; color: var(--text-muted); }

.about-media { position: relative; }
.about-image {
  aspect-ratio: 4/5;
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--primary-light), var(--primary-dark));
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.about-image img { width: 100%; height: 100%; object-fit: cover; }
.about-image::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 15%, rgba(255,255,255,.2), transparent 45%);
}
.about-image::after {
  content: "◆"; position: absolute; bottom: 24px; right: 28px;
  font-size: 3.75em; color: rgba(255,255,255,.18);
}

/* ---------- 业务板块 ---------- */
.business-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.business-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 28px;
  transition: all .3s;
  position: relative;
  overflow: hidden;
}
.business-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0); transform-origin: left; transition: transform .3s;
}
.business-card:hover { box-shadow: var(--shadow); transform: translateY(-5px); border-color: transparent; }
.business-card:hover::before { transform: scaleX(1); }
.business-icon { width: 56px; height: 56px; border-radius: 14px; background: rgba(10,46,110,.08); color: var(--primary); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.business-icon svg { width: 28px; height: 28px; }
.business-card h3 { font-size: 1.125em; color: var(--primary); margin-bottom: 10px; }
.business-card p { font-size: 0.875em; color: var(--text-muted); }

/* ---------- 新闻 ---------- */
.news-list { display: grid; gap: 16px; }
.news-item {
  display: flex; gap: 24px; align-items: center;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 28px; transition: all .25s;
}
.news-item:hover { box-shadow: var(--shadow); transform: translateX(4px); }
.news-date {
  flex-shrink: 0; width: 74px; height: 74px;
  background: linear-gradient(160deg, var(--primary), var(--primary-light));
  color: #fff; border-radius: 12px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  line-height: 1.2;
}
.news-date .day { font-size: 1.5em; font-weight: 800; }
.news-date .ym { font-size: 0.75em; opacity: .85; }
.news-cat {
  display: inline-block; font-size: 0.75em; color: var(--accent-dark);
  background: rgba(201,168,106,.14); padding: 3px 10px; border-radius: 12px; margin-bottom: 6px;
}
.news-item h3 { font-size: 1em; color: var(--text); margin-bottom: 4px; }
.news-item p { font-size: 0.875em; color: var(--text-muted); }

/* ---------- 美股动态（SEC EDGAR） ---------- */
.market-feed { margin-top: 40px; }
.market-feed-head { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.market-feed-title { font-size: 1.125em; color: var(--primary); font-weight: 700; }
.market-feed-meta { font-size: 0.75em; color: var(--text-muted); }
.market-feed-list { display: grid; gap: 10px; }
.market-item {
  display: flex; align-items: center; gap: 14px;
  background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 14px 18px;
  transition: all .2s;
}
.market-item:hover { box-shadow: var(--shadow); border-color: transparent; }
.market-badge { flex-shrink: 0; font-size: 0.75em; padding: 4px 10px; border-radius: 12px; white-space: nowrap; }
.market-badge.ipo { background: rgba(201,168,106,.16); color: #a9874b; }
.market-badge.news { background: rgba(10,46,110,.10); color: var(--primary); }
.market-item-body { flex: 1; min-width: 0; }
.market-item-title { font-size: 0.9375em; color: var(--text); font-weight: 600; }
.market-ticker { font-size: 0.75em; color: var(--accent-dark); margin-left: 4px; }
.market-item-meta { font-size: 0.75em; color: var(--text-muted); margin-top: 2px; }
.market-link { flex-shrink: 0; font-size: 0.8125em; color: var(--primary); text-decoration: none; font-weight: 600; }
.market-link:hover { text-decoration: underline; }
.market-empty { font-size: 0.875em; color: var(--text-muted); padding: 16px; text-align: center; background: var(--bg-alt); border-radius: 10px; }
.feed-toggle { justify-self: center; margin-top: 4px; padding: 9px 24px; font-size: 0.8125em; font-weight: 600; color: var(--primary); background: #fff; border: 1px solid var(--border); border-radius: 999px; cursor: pointer; transition: all .2s; }
.feed-toggle:hover { border-color: var(--primary); background: rgba(10,46,110,.04); }
.feed-toggle .ft-arrow { font-size: 0.75em; opacity: .7; margin-left: 2px; }

/* ---------- 公众号动态 ---------- */
.wechat-feed { margin-top: 32px; }
.wechat-list { display: grid; gap: 10px; }
.wechat-item {
  display: flex; align-items: center; gap: 16px;
  background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 14px 18px;
  text-decoration: none; transition: all .2s;
}
.wechat-item:hover { box-shadow: var(--shadow); border-color: transparent; }
.wechat-date { flex-shrink: 0; font-size: 0.8125em; color: var(--text-muted); min-width: 86px; }
.wechat-item-title { flex: 1; font-size: 0.9375em; color: var(--text); font-weight: 600; }
.wechat-account { flex-shrink: 0; font-size: 0.75em; color: #1aad19; background: rgba(26,173,25,.10); padding: 3px 10px; border-radius: 12px; }

/* ---------- 投资者关系 ---------- */
/* 行情轮播（红框主区域）：个股 + 各交易所指数轮播 */
.mc-slides { position: relative; min-height: 340px; }
.mc-slide { display: none; }
.mc-slide.active { display: block; animation: mcFade .55s ease; }
@keyframes mcFade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.mc-dots { display: flex; justify-content: center; gap: 8px; margin-top: 22px; }
.mc-dot { width: 8px; height: 8px; border-radius: 4px; background: rgba(255,255,255,.35); cursor: pointer; transition: all .25s; }
.mc-dot.active { width: 22px; background: #fff; }
.mc-dot:hover { background: rgba(255,255,255,.7); }

.ir-grid { display: grid; grid-template-columns: 1fr; gap: 24px; margin-bottom: 24px; }
.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.ir-stock { background: linear-gradient(160deg, var(--primary-dark), var(--primary)); color: #fff; border: none; }
.stock-top { display: flex; justify-content: space-between; align-items: flex-start; }
.stock-code { font-size: 1.625em; font-weight: 800; letter-spacing: 2px; }
.stock-exchange { font-size: 0.875em; opacity: .8; margin-top: 4px; }
.stock-price-wrap { text-align: right; }
.stock-price { font-size: 2.125em; font-weight: 800; }
.stock-change { font-size: 0.9375em; color: #ff6b6b; margin-top: 2px; }

.quote-detail { margin-top: 22px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.18); display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 20px; }
.quote-cell { font-size: 0.8125em; opacity: .88; line-height: 1.4; }
.quote-cell span { opacity: .7; }
.quote-cell b { display: block; font-size: 1.15em; font-weight: 700; opacity: 1; color: #fff; margin-top: 2px; }

/* 财务指标页（总市值/净资产/营业收入/净利润）—— 深蓝卡内白字 */
.fin-head { margin-bottom: 18px; }
.fin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.fin-cell { padding: 16px 18px; border-radius: 12px; background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.14); }
.fin-cell span { font-size: 0.8125em; opacity: .72; }
.fin-cell b { display: block; font-size: 1.5em; font-weight: 800; color: #fff; margin-top: 4px; }
.fin-meta { margin-top: 18px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.18); font-size: 0.75em; opacity: .7; }

.ir-docs { margin-top: 24px; }
.docs-title { font-size: 1.125em; color: var(--primary); margin-bottom: 20px; }
.docs-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.doc-item { display: flex; align-items: center; gap: 12px; padding: 14px 18px; border: 1px solid var(--border); border-radius: 10px; transition: all .2s; }
a.doc-item { color: inherit; text-decoration: none; }
a.doc-item:hover { border-color: var(--primary); color: var(--primary); }
.doc-item:hover { border-color: var(--primary); color: var(--primary); }
.doc-icon { color: var(--accent-dark); }
.doc-open { margin-left: auto; color: var(--primary); font-weight: 700; opacity: .55; }
a.doc-item:hover .doc-open { opacity: 1; }

.ir-disclosure { margin-top: 24px; }
.disclosure-list { display: flex; flex-wrap: wrap; gap: 12px; }
.disclosure-item { display: inline-flex; align-items: center; gap: 8px; padding: 12px 18px; border: 1px solid var(--border); border-radius: 999px; color: var(--primary); text-decoration: none; font-weight: 600; font-size: 0.9375em; transition: all .2s; background: rgba(10,46,110,.03); }
.disclosure-item:hover { border-color: var(--primary); background: var(--primary); color: #fff; }
.disclosure-item .doc-open { margin-left: 0; opacity: .6; }
.disclosure-item:hover .doc-open { opacity: 1; }
.disclosure-label { letter-spacing: .2px; }

/* ---------- 交易所股票行情表（NYSE/纳斯达克/OTC 等） ---------- */
.ex-stock-list { display: grid; gap: 20px; margin-bottom: 24px; }
.ex-stock-list:empty { display: none; }
.ex-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 28px 12px; }
.ex-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.ex-tag { display: inline-block; padding: 5px 12px; border-radius: 8px; background: var(--primary); color: #fff; font-weight: 800; font-size: 0.8125em; letter-spacing: 1px; }
.ex-name-full { font-size: 1.0625em; font-weight: 700; color: var(--text); }
.ex-time { margin-left: auto; font-size: 0.8125em; color: #8a93a3; }
.ex-table-wrap { overflow-x: auto; }
.ex-table { width: 100%; border-collapse: collapse; font-size: 0.9375em; }
.ex-table th { text-align: right; padding: 10px 12px; color: #8a93a3; font-weight: 600; font-size: 0.875em; border-bottom: 1px solid var(--border); white-space: nowrap; }
.ex-table th:first-child { text-align: left; padding-left: 0; }
.ex-table td { text-align: right; padding: 14px 12px; border-bottom: 1px solid var(--border); font-variant-numeric: tabular-nums; white-space: nowrap; }
.ex-table tbody tr:last-child td { border-bottom: none; }
.ex-table .ex-name { text-align: left; padding-left: 0; }
.ex-table .ex-name b { font-weight: 700; color: var(--text); }
.ex-table .ex-name span { margin-left: 10px; font-size: 0.8125em; color: #8a93a3; font-weight: 500; }
.ex-table .ex-price { font-weight: 800; }

/* ---------- ESG ---------- */
.esg-content { max-width: 760px; margin: 0 auto 48px; text-align: center; color: var(--text-muted); font-size: 1em; }
.esg-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.esg-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 34px 28px; text-align: center; transition: all .25s; }
.esg-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.esg-icon { width: 60px; height: 60px; margin: 0 auto 18px; border-radius: 50%; background: rgba(10,46,110,.08); color: var(--primary); display: flex; align-items: center; justify-content: center; }
.esg-icon svg { width: 28px; height: 28px; }
.esg-card h3 { font-size: 1.0625em; color: var(--primary); margin-bottom: 8px; }
.esg-card p { font-size: 0.875em; color: var(--text-muted); text-align: left; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info { display: grid; gap: 20px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-icon { font-size: 1.375em; width: 44px; height: 44px; border-radius: 12px; background: rgba(10,46,110,.08); display: flex; align-items: center; justify-content: center; }
.contact-label { font-size: 0.8125em; color: var(--text-muted); }
.contact-item > div > div:last-child { font-size: 1em; color: var(--text); font-weight: 500; }
.contact-map {
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--primary-light), var(--primary-dark));
  min-height: 280px; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,.85);
}
.contact-map img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.contact-map .map-caption { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; background: rgba(10,46,110,.85); color: #fff; font-size: 0.875em; padding: 10px 16px; }
.contact-map .map-placeholder { position: relative; z-index: 1; text-align: center; }
.contact-map .map-placeholder .pin { font-size: 2.5em; display: block; margin-bottom: 8px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,.8); padding: 64px 0 0; font-size: var(--fs-footer); }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; padding-bottom: 40px; }
.footer-logo { font-size: 1.375em; font-weight: 800; color: #fff; margin-bottom: 12px; letter-spacing: 1px; }
.footer-slogan { font-size: 0.875em; color: rgba(255,255,255,.6); }
.footer-links { display: flex; gap: 28px; align-items: center; }
.footer-links a { font-size: 0.875em; color: rgba(255,255,255,.7); transition: color .2s; }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; padding: 20px 24px; border-top: 1px solid rgba(255,255,255,.12); font-size: 0.8125em; color: rgba(255,255,255,.55); flex-wrap: wrap; }

/* ---------- 回到顶部 ---------- */
.back-top {
  position: fixed; right: 28px; bottom: 28px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--primary); color: #fff; border: none; cursor: pointer;
  font-size: 1.25em; box-shadow: 0 8px 20px rgba(10,46,110,.3);
  opacity: 0; visibility: hidden; transition: all .3s;
}
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--primary-light); }

/* ---------- 动画 ---------- */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.fade-in.visible { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .about-grid { grid-template-columns: 1fr; }
  .business-grid { grid-template-columns: repeat(2, 1fr); }
  .esg-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .ir-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .menu-toggle { display: flex; }
  .nav {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    background: var(--nav-bg);
    flex-direction: column; align-items: stretch;
    padding: 12px 20px 20px; gap: 2px;
    transform: translateY(-120%); transition: transform .3s;
  }
  .nav.open { transform: translateY(0); }
  .nav a { padding: 13px 14px; }
  .business-grid { grid-template-columns: 1fr; }
  .esg-grid { grid-template-columns: 1fr; }
  .about-points { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; align-items: flex-start; }
  .docs-list { grid-template-columns: 1fr; }
  .mc-slides { min-height: 400px; }
  .footer-inner { flex-direction: column; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-arrow { display: none; }
}