/* =========================================================
   机械设备企业品牌官网 · 样板设计系统
   配色：香槟金（高级·强调） + 暖白（明亮底），深炭灰文字
   说明：所有品牌名 / 文案 / 图片均为占位，可整体替换。
   ========================================================= */

:root {
  /* 主色：香槟金 + 暖白（高级稳健工业风） */
  --c-navy: #2b2b2b;        /* 深炭灰 主色（标题/logo/文字） */
  --c-navy-2: #3a3a3a;      /* 炭灰 渐变次色 */
  --c-blue: #2b2b2b;        /* 深炭灰 次级强调（文字/focus） */
  --c-blue-light: #d9c28e;  /* 浅金 辅助 */
  --c-accent: #c8a96a;      /* 香槟金 强调与CTA */
  --c-accent-dark: #a8884e; /* 深金 */

  /* 中性：暖白底 */
  --c-bg: #f6f4f0;
  --c-surface: #ffffff;
  --c-surface-2: #efece6;
  --c-text: #2b2b2b;
  --c-text-soft: #6b6b6b;
  --c-border: #e3ded5;

  /* 排版 */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
    "Helvetica Neue", Arial, sans-serif;

  /* 尺度 */
  --maxw: 1500px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(31, 38, 43, 0.06);
  --shadow: 0 8px 30px rgba(31, 38, 43, 0.10);
  --shadow-lg: 0 18px 50px rgba(31, 38, 43, 0.16);
  --tr: 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: var(--font-sans);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
}

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

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: var(--tr);
  white-space: nowrap;
}
.btn-primary {
  background: var(--c-accent);
  color: #2b2b2b;
  box-shadow: 0 6px 18px rgba(200, 169, 106, 0.4);
}
.btn-primary:hover {
  background: var(--c-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(200, 169, 106, 0.45);
}
.btn-ghost {
  background: transparent;
  color: var(--c-navy);
  border-color: var(--c-navy);
}
.btn-ghost:hover { background: var(--c-navy); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--c-blue);
  border-color: var(--c-blue);
}
.btn-outline:hover { background: var(--c-blue); color: #fff; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: var(--tr);
}
.site-header.scrolled {
  border-bottom-color: var(--c-border);
  box-shadow: var(--shadow-sm);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}
.brand .logo-mark {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, #D9C28E, var(--c-accent));
  display: grid; place-items: center;
  color: #fff;
  font-size: 28px;
  line-height: 1;
  font-weight: 800;
}
.brand .logo-text { line-height: 1.15; }
.brand .logo-text b { font-size: 19px; letter-spacing: 1px; color: var(--c-accent-dark); }
.brand .logo-text span {
  display: block;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--c-text-soft);
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 6px;
}
.nav-links a {
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-text);
  border-radius: 8px;
  transition: var(--tr);
  position: relative;
}
.nav-links a:hover { color: var(--c-accent-dark); }
/* 滚动进入对应板块：仅菜单名变香槟金，不加背景色、不加下划线 */
.nav-links a.active { color: var(--c-accent-dark); font-weight: 700; }

.nav-right { display: flex; align-items: center; gap: 16px; }
.nav-phone {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; color: var(--c-navy); font-size: 16px;
}
.nav-phone svg { color: var(--c-accent); }

.nav-toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  width: 42px; height: 42px;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--c-navy);
  margin: 4px auto; transition: var(--tr); border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(900px 420px at 82% -8%, rgba(200, 169, 106, 0.12), transparent 60%),
    linear-gradient(135deg, #ffffff 0%, #faf7f5 60%, #f3eeec 100%);
  color: var(--c-text);
  overflow: hidden;
  padding: 96px 0 110px;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(31,38,43,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,38,43,0.04) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(900px 500px at 75% 20%, #000, transparent 75%);
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(200, 169, 106, 0.16);
  color: var(--c-navy);
  border: 1px solid rgba(200, 169, 106, 0.5);
  padding: 6px 14px; border-radius: 999px;
  font-size: 13px; font-weight: 600; letter-spacing: 1px;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: 44px;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero h1 .hl { color: var(--c-navy); border-bottom: 3px solid var(--c-accent); padding-bottom: 2px; }
.hero p.lead {
  font-size: 17px;
  color: rgba(31, 38, 43, 0.72);
  max-width: 540px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 36px; margin-top: 48px; flex-wrap: wrap;
}
.hero-stats .hs b { font-size: 30px; color: var(--c-navy); font-weight: 800; }
.hero-stats .hs span { display: block; font-size: 13px; color: var(--c-text-soft); }

/* Hero 右侧设备插画（SVG 占位，可替换为真实车间图） */
.hero-visual {
  position: relative;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: 18px;
  padding: 26px;
  box-shadow: var(--shadow);
}
.hero-visual .tag {
  position: absolute; top: -14px; left: 24px;
  background: var(--c-accent); color: #2b3138;
  font-size: 12px; font-weight: 700; padding: 5px 12px; border-radius: 999px;
}
.hero-visual svg { width: 100%; height: auto; }

/* ---------- 通用 section ---------- */
.section { padding: 86px 0; }
.section.alt { background: var(--c-surface); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.eyebrow {
  display: inline-block;
  color: var(--c-accent);
  font-weight: 700; letter-spacing: 2px; font-size: 13px;
  margin-bottom: 12px;
}
.eyebrow::before { content: "— "; color: var(--c-accent); }
.eyebrow::after { content: " —"; color: var(--c-accent); }
.section-head h2 {
  font-size: 32px; font-weight: 800; color: var(--c-navy);
  letter-spacing: 1px; margin-bottom: 14px;
}
.section-head p { color: var(--c-text-soft); font-size: 16px; }

/* ---------- 产品卡片 ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: var(--tr);
  position: relative;
  overflow: hidden;
}
.card::after {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0;
  background: var(--c-accent); transition: var(--tr);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.card:hover::after { width: 100%; }
.card .ic {
  width: 54px; height: 54px; border-radius: 12px;
  background: var(--c-surface-2); color: var(--c-blue);
  display: grid; place-items: center; margin-bottom: 18px;
  transition: var(--tr);
}
.card:hover .ic { background: var(--c-blue); color: #fff; }
.card h3 { font-size: 18px; color: var(--c-navy); margin-bottom: 10px; }
.card p { color: var(--c-text-soft); font-size: 14px; margin-bottom: 16px; }
.card .more {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--c-blue); font-weight: 600; font-size: 14px;
}
.card .more svg { transition: var(--tr); }
.card:hover .more svg { transform: translateX(4px); }

/* 产品缩略图占位（可换真实设备图） */
.thumb {
  height: 150px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #e2e5e8, #cbd1d6);
  display: grid; place-items: center; color: var(--c-blue);
  margin-bottom: 18px; position: relative; overflow: hidden;
}
.thumb span {
  position: absolute; bottom: 8px; right: 10px;
  font-size: 11px; color: rgba(31,38,43,0.45);
}

/* ---------- 解决方案 ---------- */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.solution {
  background: var(--c-surface);
  color: var(--c-text);
  border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 30px 26px;
  transition: var(--tr); position: relative; overflow: hidden;
}
.solution::before {
  content: ""; position: absolute; right: -30px; top: -30px;
  width: 120px; height: 120px; border-radius: 50%;
  background: rgba(200,169,106,0.2);
}
.solution .ic { color: var(--c-accent); margin-bottom: 16px; }
.solution h3 { font-size: 19px; margin-bottom: 10px; }
.solution p { color: var(--c-text-soft); font-size: 14px; }

/* ---------- 实力数据条 ---------- */
.stats-band {
  background: linear-gradient(135deg, #D9C28E, var(--c-accent));
  color: #2b2b2b;
}
.stats-band .container {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px;
  padding-top: 54px; padding-bottom: 54px; text-align: center;
}
.stat .num {
  font-size: 42px; font-weight: 800; color: #2b2b2b; line-height: 1;
}
.stat .num .unit { font-size: 20px; color: rgba(43,43,43,0.85); margin-left: 2px; }
.stat .label { margin-top: 10px; font-size: 14px; color: rgba(43,43,43,0.85); }

/* ---------- 资质荣誉 ---------- */
.cert-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px;
}
.cert {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius-sm); padding: 22px 12px; text-align: center;
  transition: var(--tr);
}
.cert:hover { box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.cert .ic { color: var(--c-blue); margin-bottom: 10px; }
.cert b { display: block; font-size: 14px; color: var(--c-navy); }
.cert span { font-size: 12px; color: var(--c-text-soft); }

/* ---------- 品牌故事（立人设） ---------- */
.story { background: var(--c-surface); }
.story-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.story-lead {
  font-size: 27px; line-height: 1.5; color: var(--c-navy);
  font-weight: 800; letter-spacing: .5px; margin-bottom: 20px;
}
.story-lead .hl { color: var(--c-navy); border-bottom: 2px solid var(--c-accent); padding-bottom: 2px; }
.story p { color: var(--c-text-soft); margin-bottom: 14px; }
.story .signature { margin-top: 20px; display: flex; align-items: center; gap: 14px; }
.story .signature .badge {
  width: 46px; height: 46px; border-radius: 12px; flex: none;
  background: linear-gradient(135deg, var(--c-blue), var(--c-navy));
  color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 18px;
}
.story .signature b { color: var(--c-navy); display: block; }
.story .signature span { font-size: 13px; color: var(--c-text-soft); }

.pillars { display: grid; gap: 16px; }
.pillar {
  display: flex; gap: 16px; padding: 20px 22px;
  border: 1px solid var(--c-border); border-radius: var(--radius);
  background: var(--c-surface-2); transition: var(--tr);
}
.pillar:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); border-color: transparent; }
.pillar .pic {
  width: 48px; height: 48px; flex: none; border-radius: 12px;
  background: var(--c-navy); color: var(--c-accent); display: grid; place-items: center;
}
.pillar h4 { font-size: 17px; color: var(--c-navy); margin-bottom: 4px; }
.pillar p { font-size: 14px; color: var(--c-text-soft); margin: 0; }

.story-quote {
  margin-top: 44px;
  background: linear-gradient(135deg, #ffffff, #efedf7);
  color: var(--c-text); border: 1px solid var(--c-border); border-radius: 16px; padding: 36px 44px;
  position: relative; overflow: hidden;
}
.story-quote::before {
  content: "“"; position: absolute; right: 26px; top: -18px;
  font-size: 130px; color: rgba(200, 169, 106, 0.22); font-family: Georgia, serif; line-height: 1;
}
.story-quote p { color: var(--c-navy); font-size: 21px; font-weight: 700; line-height: 1.6; position: relative; margin: 0; }
.story-quote span { color: var(--c-text-soft); font-size: 14px; }

/* ---------- 客户案例 ---------- */
.case-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.case {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); overflow: hidden; transition: var(--tr);
}
.case:hover { box-shadow: var(--shadow); transform: translateY(-5px); }
.case .top {
  height: 120px; padding: 22px;
  background: linear-gradient(135deg, #D9C28E, var(--c-accent));
  color: #2b2b2b; display: flex; align-items: center; gap: 14px;
}
.case .top .avatar {
  width: 46px; height: 46px; border-radius: 10px; flex: none;
  background: rgba(255,255,255,0.92); color: var(--c-accent); display: grid; place-items: center;
  font-weight: 800; font-size: 18px;
}
.case .top b { font-size: 16px; }
.case .top span { font-size: 12px; color: rgba(43,43,43,0.78); }
.case .body { padding: 20px 22px; }
.case .body p { color: var(--c-text-soft); font-size: 14px; }
.case .body .kpi {
  margin-top: 14px; display: flex; gap: 18px;
  border-top: 1px dashed var(--c-border); padding-top: 14px;
}
.case .body .kpi b { color: var(--c-accent-dark); font-size: 20px; }
.case .body .kpi span { font-size: 12px; color: var(--c-text-soft); display: block; }

.logo-wall {
  margin-top: 50px;
  display: flex; flex-wrap: wrap; gap: 14px; justify-content: center;
}
.logo-wall .lw {
  border: 1px solid var(--c-border); background: var(--c-surface);
  border-radius: 10px; padding: 14px 26px; font-weight: 700;
  color: var(--c-text-soft); font-size: 15px; letter-spacing: 1px;
  transition: var(--tr);
}
.logo-wall .lw:hover { color: var(--c-accent); border-color: var(--c-accent); }

/* ---------- 新闻资讯 ---------- */
.news-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.news {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); overflow: hidden; transition: var(--tr);
  display: flex; flex-direction: column;
}
.news:hover { box-shadow: var(--shadow); transform: translateY(-5px); }
.news .cover {
  height: 160px;
  background: linear-gradient(135deg, #ede8e0, #dcd3c6);
  position: relative;
}
.news .cover .cat {
  position: absolute; top: 12px; left: 12px;
  background: var(--c-navy); color: #fff; font-size: 12px;
  padding: 4px 12px; border-radius: 999px;
}
.news .meta { padding: 18px 20px 22px; }
.news .meta .date { font-size: 13px; color: var(--c-text-soft); }
.news .meta h3 { font-size: 17px; color: var(--c-navy); margin: 8px 0 10px; line-height: 1.5; }
.news .meta p { font-size: 14px; color: var(--c-text-soft); }

/* ---------- 关于 + CTA ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-grid h2 { font-size: 30px; color: var(--c-navy); margin-bottom: 18px; }
.about-grid p { color: var(--c-text-soft); margin-bottom: 16px; }
.timeline { margin-top: 24px; }
.tl-item { display: flex; gap: 16px; padding-bottom: 22px; position: relative; }
.tl-item::before {
  content: ""; position: absolute; left: 7px; top: 18px; bottom: -4px;
  width: 2px; background: var(--c-border);
}
.tl-item:last-child::before { display: none; }
.tl-dot { width: 16px; height: 16px; border-radius: 50%; background: var(--c-accent); flex: none; margin-top: 4px; box-shadow: 0 0 0 4px rgba(200,169,106,0.2); }
.tl-item b { color: var(--c-navy); }
.tl-item span { display: block; color: var(--c-text-soft); font-size: 14px; }

.cta-band {
  background: linear-gradient(135deg, #D9C28E, var(--c-accent));
  border-radius: 18px; color: #2b2b2b;
  padding: 50px 44px; text-align: center; position: relative; overflow: hidden;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(500px 200px at 90% 10%, rgba(200,169,106,0.25), transparent 60%);
}
.cta-band h2 { font-size: 28px; margin-bottom: 12px; position: relative; }
.cta-band p { color: rgba(43,43,43,0.85); margin-bottom: 26px; position: relative; }
.cta-band .hero-actions { justify-content: center; position: relative; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: #23282e;
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px;
  padding-bottom: 40px;
}
.site-footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.site-footer .f-about p { font-size: 14px; margin-bottom: 16px; }
.site-footer ul li { margin-bottom: 10px; font-size: 14px; }
.site-footer ul li a:hover { color: var(--c-accent); }
.f-contact li { display: flex; gap: 10px; align-items: flex-start; }
.f-contact li svg { color: var(--c-accent); flex: none; margin-top: 3px; }
.f-qr {
  background: #fff; border-radius: 10px; padding: 10px; width: 110px;
  text-align: center; margin-top: 14px;
}
.f-qr .qr-box {
  width: 90px; height: 90px; margin: 0 auto 6px;
  background:
    repeating-linear-gradient(0deg, #23282e 0 6px, #fff 6px 12px),
    repeating-linear-gradient(90deg, #23282e 0 6px, #fff 6px 12px);
  background-blend-mode: difference;
  border: 3px solid #23282e; border-radius: 6px;
}
.f-qr span { font-size: 11px; color: var(--c-text); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0; text-align: center; font-size: 13px;
  color: rgba(255,255,255,0.5);
}

/* ---------- 图片占位提示 ---------- */
.ph-note {
  font-size: 12px; color: var(--c-text-soft);
  background: var(--c-surface-2); border: 1px dashed var(--c-border);
  border-radius: 6px; padding: 6px 12px; display: inline-block; margin-top: 8px;
}

/* ---------- 联系我们（首页版块） ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.info-card { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius); padding: 32px; }
.info-card h3 { color: var(--c-navy); font-size: 20px; margin-bottom: 20px; }
.info-row { display: flex; gap: 14px; margin-bottom: 18px; }
.info-row .ic { width: 42px; height: 42px; flex: none; border-radius: 10px; background: var(--c-surface-2); color: var(--c-blue); display: grid; place-items: center; }
.info-row b { display: block; color: var(--c-navy); }
.info-row span { color: var(--c-text-soft); font-size: 14px; }
/* 联系方式可点击：电话拨号 / 邮箱 mailto / 网址跳转，外观与原文本一致 */
.info-row a, .f-contact a, .nav-phone a { color: inherit; text-decoration: none; }
.info-row a:hover { color: var(--c-accent-dark); text-decoration: underline; }
.f-contact a:hover, .nav-phone a:hover { color: var(--c-accent); text-decoration: underline; }
.form-card { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius); padding: 32px; }
.form-card h3 { color: var(--c-navy); font-size: 20px; margin-bottom: 20px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; color: var(--c-text); margin-bottom: 6px; font-weight: 600; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--c-border); border-radius: 8px;
  font-family: inherit; font-size: 14px; color: var(--c-text); background: #fff; transition: var(--tr);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--c-blue); box-shadow: 0 0 0 3px rgba(200, 169, 106, 0.12); }
.field textarea { resize: vertical; min-height: 110px; }
.form-card .btn { width: 100%; justify-content: center; }
.form-card .btn[disabled] { opacity: .65; cursor: not-allowed; transform: none !important; box-shadow: none; }
/* 在线留言真实提交：蜜罐 / 状态提示 / 说明 */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-msg { margin-top: 12px; font-size: 14px; line-height: 1.6; }
.form-msg:empty { display: none; }
.form-msg.ok { color: var(--c-accent-dark); font-weight: 600; }
.form-msg.err { color: #b23b3b; font-weight: 600; }
.form-note { margin-top: 10px; font-size: 12px; color: var(--c-text-soft); line-height: 1.6; }
.map-embed { position: relative; height: 220px; border-radius: var(--radius-sm); overflow: hidden; background: linear-gradient(135deg, #dadee1, #c0c8cd); }
.map-embed #amapContainer { position: absolute; inset: 0; width: 100%; height: 100%; }
.map-embed .map-fallback { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; padding: 18px; text-align: center; background: linear-gradient(135deg, #dadee1, #c0c8cd); color: var(--c-blue); }
.map-embed .map-fallback b { font-size: 16px; color: var(--c-navy); }
.map-embed .map-fallback span { font-size: 12px; opacity: .85; }
.map-embed .map-fallback a { margin-top: 6px; display: inline-block; padding: 8px 18px; border-radius: 8px; background: var(--c-blue); color: #fff; font-size: 13px; text-decoration: none; }
.map-embed .map-fallback a:hover { background: var(--c-navy); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .product-grid, .solution-grid, .case-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(3, 1fr); }
  .stats-band .container { grid-template-columns: repeat(3, 1fr); row-gap: 30px; }
  .hero-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .story-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-links, .nav-right .nav-phone { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; padding: 10px 20px 20px;
    box-shadow: var(--shadow); border-top: 1px solid var(--c-border);
  }
  .nav-links.open a { padding: 12px 8px; }
  .hero { padding: 70px 0 80px; }
  .hero h1 { font-size: 32px; }
  .section { padding: 60px 0; }
  .section-head h2 { font-size: 26px; }
  .product-grid, .solution-grid, .case-grid, .news-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-band .container { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}