/* ==========================================================
   河北熙海商贸有限公司 官网样式
   风格：浅色 / 朴实 / 以产品信息为主  （2026-09-18 改版）
   需要改配色时，直接改下面 :root 里的变量即可
   ========================================================== */

:root {
  /* 主色：取自公司 LOGO 的蓝色 */
  --brand: #1a6fb0;
  --brand-dark: #135a91;
  --brand-light: #eaf3fa;

  /* 文字 */
  --text: #22303c;
  --text-muted: #6b7a86;
  --text-light: #8d9aa5;

  /* 背景 / 边线 */
  --bg: #ffffff;
  --bg-soft: #f5f8fb;
  --line: #e3e9ef;

  --radius: 6px;          /* 小圆角，方正朴实 */
  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; }
.container { width: min(1140px, 92%); margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}
.site-header.scrolled { box-shadow: 0 1px 8px rgba(0, 0, 0, .06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); }
.brand-name { font-size: 21px; font-weight: 700; letter-spacing: .5px; }
.brand-logo { width: 44px; height: 44px; border-radius: 50%; display: block; flex: 0 0 auto; }

.site-nav { display: flex; gap: 26px; }
.nav-link {
  font-size: 15px; color: #44525e; padding: 6px 2px;
  border-bottom: 2px solid transparent; transition: color .2s, border-color .2s;
}
.nav-link:hover { color: var(--brand); }
.nav-link.active { color: var(--brand); border-bottom-color: var(--brand); font-weight: 600; }
.site-nav { margin-left: auto; }
.header-tel {
  font-size: 15px; font-weight: 700; color: var(--brand); white-space: nowrap;
  padding-left: 22px; margin-left: 4px; border-left: 1px solid var(--line);
}
.header-tel:hover { color: var(--brand-dark); }

.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 40px; height: 40px; padding: 10px 8px;
}
.nav-toggle span {
  display: block; height: 2px; background: var(--text); border-radius: 2px; margin: 4px 0;
  transition: transform .2s, opacity .2s;
}

/* ---------- 首屏 ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, #f2f7fb 0%, #ffffff 100%);
  padding: 128px 0 72px;
}
.hero-bg { display: none; }
.hero-content { position: relative; max-width: 780px; margin: 0 auto; text-align: center; }
.hero-eyebrow { text-align: center; }
.hero-actions { justify-content: center; }
.hero-eyebrow {
  font-size: 12px; letter-spacing: 2px; color: var(--text-light);
  text-transform: uppercase; margin-bottom: 14px;
}
.hero h1 {
  font-size: 42px; font-weight: 700; line-height: 1.45; letter-spacing: 2px;
  color: var(--text); margin-bottom: 16px;
}
.hero h1 .accent { color: var(--brand); margin: 0 10px; font-weight: 400; }
.hero-sub { font-size: 17px; color: #4a5b68; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-tel { font-size: 16px; color: var(--text); margin-top: 18px; font-weight: 600; }
.hero-tel a { color: var(--brand); font-size: 20px; letter-spacing: .5px; }
.hero-tel a:hover { color: var(--brand-dark); }

/* ---------- 产品规格表 ---------- */
.table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 660px; }
.spec-table th, .spec-table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); }
.spec-table th { background: var(--brand-light); color: var(--brand-dark); font-weight: 600; white-space: nowrap; }
.spec-table td { color: #4a5b68; }
.spec-table td:first-child { color: var(--text); font-weight: 600; white-space: nowrap; }
.spec-table tbody tr:last-child td { border-bottom: 0; }
.spec-table tbody tr:hover { background: #fafcfe; }
.tip-note { font-size: 13px; color: var(--text-muted); margin-top: 12px; }

/* ---------- 联系我们（独立页面） ---------- */
.section.page-head {
  background:
    linear-gradient(rgba(9, 42, 68, .72), rgba(15, 72, 110, .80)),
    url('../img/warehouse.webp') center / cover no-repeat;
  padding: 152px 0 46px;
}
.page-title { font-size: 28px; font-weight: 700; color: #fff; position: relative; padding-left: 14px; line-height: 1.3; }
.page-title::before { content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 4px; background: #fff; border-radius: 2px; }
.page-desc { font-size: 14px; color: rgba(255, 255, 255, .9); margin-top: 10px; padding-left: 14px; }
@media (max-width: 640px) { .section.page-head { padding: 108px 0 30px; } .page-title { font-size: 23px; } }
.contact-page { padding: 40px 0 64px; }
.contact-page-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: start; }
.contact-block h2 { font-size: 20px; font-weight: 700; color: var(--text); position: relative; padding-left: 12px; margin-bottom: 16px; line-height: 1.3; }
.contact-block h2::before { content: ""; position: absolute; left: 0; top: 5px; bottom: 5px; width: 4px; background: var(--brand); border-radius: 2px; }
.contact-list li { display: flex; gap: 12px; font-size: 15px; padding: 11px 0; border-bottom: 1px dashed var(--line); }
.contact-list li b { flex: 0 0 92px; font-weight: 600; color: var(--text); }
.contact-list li a { color: var(--brand); font-weight: 600; font-size: 16px; letter-spacing: .5px; }
.contact-list li a:hover { color: var(--brand-dark); }
.contact-addr { font-size: 15px; color: var(--text); margin-bottom: 14px; }
.map-link { display: block; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: border-color .2s; }
.map-link:hover { border-color: var(--brand); }
.map-link img { display: block; width: 100%; height: auto; }

/* ---------- 关于我们（独立页面） ---------- */
.about-main { display: grid; grid-template-columns: 1.45fr 1fr; gap: 32px; align-items: start; }
.about-main p { color: #4a5b68; margin-bottom: 12px; }
.idea-box { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px 26px; text-align: center; }
.idea-big { font-size: 30px; font-weight: 700; letter-spacing: 4px; color: var(--brand); }
.idea-sub { font-size: 16px; color: var(--text); margin-top: 12px; }
.idea-text { font-size: 14.5px; color: var(--text-muted); margin-top: 16px; max-width: 760px; margin-left: auto; margin-right: auto; line-height: 1.9; }
.info-table th { width: 120px; }
.info-table td a { color: var(--brand); font-weight: 600; }
.info-table td a:hover { color: var(--brand-dark); }

/* ---------- 主营产品（独立页面） ---------- */
.chip-nav { display: flex; flex-wrap: wrap; gap: 10px; }
.chip-nav a { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 7px 15px; font-size: 14px; color: var(--text); }
.chip-nav a:hover { border-color: var(--brand); color: var(--brand); }
.prod-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 26px; align-items: start; }
.prod-grid p { color: #4a5b68; margin-bottom: 10px; }

.btn {
  display: inline-block; padding: 11px 26px; border-radius: var(--radius);
  font-size: 15px; font-weight: 600; border: 1px solid transparent; cursor: pointer;
  transition: background .2s, color .2s, border-color .2s;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-ghost { background: #fff; color: var(--brand); border-color: var(--brand); }
.btn-ghost:hover { background: var(--brand-light); }

.hero-scroll { display: none; }

/* ---------- 通用区块 ---------- */
.section { padding: 64px 0; }
.business, .strengths, .contact { background: var(--bg-soft); }
.section-head { margin-bottom: 28px; }
.section-eyebrow {
  font-size: 12px; letter-spacing: 2px; color: var(--text-light);
  text-transform: uppercase; margin-bottom: 6px;
}
.section-head h2 {
  font-size: 26px; font-weight: 700; color: var(--text);
  padding-left: 14px; position: relative; line-height: 1.3;
}
.section-head h2::before {
  content: ""; position: absolute; left: 0; top: 6px; bottom: 6px;
  width: 4px; background: var(--brand); border-radius: 2px;
}
.section-desc { font-size: 14px; color: var(--text-muted); margin-top: 10px; }

/* ---------- 关于我们 ---------- */
.about-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 32px; align-items: start; }
.about-lead { font-size: 16px; color: var(--text); margin-bottom: 12px; }
.about-text p { color: #4a5b68; }
.about-stats { display: flex; gap: 34px; margin-top: 24px; flex-wrap: wrap; }
.stat { text-align: left; }
.stat .num { display: block; font-size: 30px; font-weight: 700; color: var(--brand); line-height: 1.2; }
.stat i { font-style: normal; font-size: 13px; color: var(--text-muted); margin-left: 2px; }
.stat span { display: block; font-size: 13px; color: var(--text-muted); }

.about-card {
  background:
    url('../img/logo-faint.webp?v=1') right 16px bottom 14px / 140px 140px no-repeat,
    linear-gradient(160deg, #e6f2fb 0%, #f4fafe 55%, #ffffff 100%);
  border: 1px solid #cfe4f3;
  border-radius: var(--radius); padding: 22px;
  box-shadow: 0 10px 24px rgba(26, 111, 176, .07);
}
.about-visual { text-align: center; padding: 8px 0 16px; border-bottom: 1px dashed var(--line); margin-bottom: 14px; }
.big-char { font-size: 40px; font-weight: 700; color: var(--brand); letter-spacing: 6px; display: block; text-shadow: 0 1px 0 rgba(255, 255, 255, .9); }
.about-visual p { font-size: 13px; color: var(--text-muted); margin-top: 8px; }
.about-points li {
  font-size: 14px; color: #4a5b68; padding: 7px 0 7px 20px; position: relative;
}
.about-points li::before {
  content: ""; position: absolute; left: 4px; top: 15px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--brand);
}

/* ---------- 主营产品 ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; transition: border-color .2s;
}
.card:hover { border-color: var(--brand); }
.card-icon { font-size: 13px; font-weight: 700; color: var(--brand); margin-bottom: 8px; letter-spacing: 1px; }
.card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.card p { font-size: 14px; color: var(--text-muted); }
.card-img { display: block; width: 100%; height: 220px; object-fit: contain; border-radius: 4px; margin-bottom: 14px; background: #eef3f8; }

/* ---------- 核心优势 ---------- */
.strength-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.strength {
  background: #fff; border: 1px solid var(--line); border-left: 3px solid var(--brand);
  border-radius: var(--radius); padding: 18px 20px;
}
.strength h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.strength h3 em { font-style: normal; color: var(--brand); }
.strength p { font-size: 14px; color: var(--text-muted); }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
.contact-info li {
  display: flex; gap: 10px; font-size: 14px; padding: 9px 0; border-bottom: 1px dashed var(--line);
}
.contact-info li:last-child { border-bottom: 0; }
.contact-info li b { flex: 0 0 84px; font-weight: 600; color: var(--text); }
.contact-info li span { color: #4a5b68; }

.contact-form { display: flex; flex-direction: column; gap: 12px; }
.contact-form input, .contact-form textarea {
  font-family: inherit; font-size: 14px; color: var(--text);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 11px 13px; background: #fff; outline: none; resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--brand); }
.contact-form .btn-primary { align-self: flex-start; }
.form-tip { font-size: 12.5px; color: var(--text-light); }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--bg-soft); border-top: 1px solid var(--line); padding: 34px 0; }
.footer-inner { display: flex; align-items: flex-start; justify-content: space-between; gap: 26px; flex-wrap: wrap; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand .brand-logo { width: 46px; height: 46px; }
.footer-brand p { font-size: 15px; font-weight: 600; color: var(--text); }
.footer-contact { font-size: 13px !important; font-weight: 400 !important; color: var(--text-muted) !important; line-height: 1.75; margin-top: 4px; }
.footer-nav { display: flex; gap: 20px; flex-wrap: wrap; padding-top: 6px; }
.footer-nav a { font-size: 14px; color: var(--text-muted); }
.footer-nav a:hover { color: var(--brand); }
.footer-legal { text-align: right; padding-top: 6px; }
.footer-legal p { font-size: 13px; color: var(--text-light); }
.footer-legal a { color: var(--text-light); }
.footer-legal a:hover { color: var(--brand); }

/* ---------- 入场动画：改版后取消，内容直接显示 ---------- */
.reveal { opacity: 1; transform: none; }
.reveal.visible { opacity: 1; transform: none; }
.delay-1, .delay-2, .delay-3 { transition-delay: 0s; }

/* ---------- 移动端 ---------- */
@media (max-width: 900px) {
  .about-grid, .contact-grid, .contact-page-grid, .about-main, .prod-grid { grid-template-columns: 1fr; gap: 22px; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .strength-list { grid-template-columns: 1fr; }
  .footer-legal { text-align: left; }
}
@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .hero { padding: 104px 0 48px; }
  .hero h1 { font-size: 30px; letter-spacing: 1px; }
  .hero h1 .accent { margin: 0 5px; }
  .hero-sub { font-size: 15px; }
  .section { padding: 44px 0; }
  .section-head h2 { font-size: 22px; }
  .card-grid { grid-template-columns: 1fr; }
  .brand-name { font-size: 17px; }
  .brand-logo { width: 36px; height: 36px; }
  .site-header { padding: 10px 0; }
  .header-tel { display: none; }
  .stat .num { font-size: 26px; }
  .section.page-head { padding: 108px 0 30px; }
  .page-title { font-size: 23px; }
  .contact-list li b { flex: 0 0 76px; }
  .contact-list li a { font-size: 15px; }
  .idea-big { font-size: 22px; letter-spacing: 2px; }
  .about-stats { gap: 26px; }

  /* 移动端汉堡菜单 */
  .nav-toggle { display: block; }
  .site-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; gap: 0; padding: 6px 0;
  }
  .site-nav.open { display: flex; }
  .site-nav .nav-link { padding: 12px 18px; border-bottom: 0; border-left: 3px solid transparent; }
  .site-nav .nav-link.active { border-left-color: var(--brand); background: var(--brand-light); }
  .nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
}

/* ==========================================================
   配色增强（2026-09-18 下午）：品牌蓝为主，保留朴实排版
   —— 不要金色、不要花哨动效
   ========================================================== */

/* 1. 首屏：品牌蓝渐变 + 白字 */
.hero { background: linear-gradient(160deg, #1a6fb0 0%, #2b86c5 52%, #46a6db 100%); }
.hero h1 { color: #fff; }
.hero h1 .accent { color: rgba(255, 255, 255, .6); }
.hero-sub { color: rgba(255, 255, 255, .93); }
.hero-tel { color: rgba(255, 255, 255, .9); }
.hero-tel a { color: #fff; }
.hero-tel a:hover { color: #eaf6ff; }
.hero .btn-primary { background: #fff; color: var(--brand-dark); }
.hero .btn-primary:hover { background: #f0f7fc; }
.hero .btn-ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .8); }
.hero .btn-ghost:hover { background: rgba(255, 255, 255, .16); }

/* 2. 区块底色：浅蓝 / 白交替 */
.business, .strengths, .contact { background: #eef6fc; }
.spec { background: #fff; }

/* 3. 标题用深蓝，正文柔和 */
.section-head h2, .contact-block h2 { color: #10395a; }
.section-desc { color: #5b6b78; }

/* 4. 产品卡片：蓝色编号徽标 + 顶部蓝条 */
.card-icon {
  display: inline-block; background: var(--brand); color: #fff;
  border-radius: 4px; padding: 1px 9px; font-size: 12.5px; letter-spacing: .5px; margin-bottom: 10px;
}
.card { border-top: 3px solid #cfe4f3; }
.card:hover { border-color: var(--brand); border-top-color: var(--brand); box-shadow: 0 8px 20px rgba(26, 111, 176, .13); }

/* 5. 核心优势：蓝色左条更明显 */
.strength { border-left-width: 4px; }
.strength h3 em { color: var(--brand-dark); }

/* 6. 规格表表头加深一点 */
.spec-table th { background: #d9eaf7; color: #10395a; }

/* 7. 新闻行 hover */

/* 8. 行动条 CTA */
.cta-band { background: linear-gradient(135deg, #10395a 0%, #1a6fb0 100%); color: #fff; padding: 26px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.cta-band h3 { font-size: 19px; font-weight: 700; color: #fff; }
.cta-band p { font-size: 14px; color: rgba(255, 255, 255, .85); margin-top: 5px; }
.cta-right { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.cta-tel { font-size: 25px; font-weight: 700; color: #fff; letter-spacing: .5px; }
.cta-tel:hover { color: #d9edfb; }
.btn-cta {
  background: #fff; color: var(--brand-dark); border-radius: var(--radius);
  padding: 11px 22px; font-weight: 700; font-size: 15px; white-space: nowrap;
}
.btn-cta:hover { background: #eaf4fb; }

/* 9. 页脚：深蓝 */
.site-footer { background: #10395a; border-top: 0; }
.footer-brand p, .site-footer .brand-name { color: #fff; }
.footer-contact { color: rgba(255, 255, 255, .72) !important; }
.footer-nav a { color: rgba(255, 255, 255, .8); }
.footer-nav a:hover { color: #fff; }
.footer-legal p { color: rgba(255, 255, 255, .62); }
.footer-legal a { color: rgba(255, 255, 255, .62); }
.footer-legal a:hover { color: #fff; }
.site-footer .brand-logo { box-shadow: 0 0 0 2px rgba(255, 255, 255, .25); }

@media (max-width: 640px) {
  .cta-band h3 { font-size: 17px; }
  .cta-tel { font-size: 21px; }
}

/* ---------- 首页产品跑马灯 ---------- */.marquee { position: relative; overflow: hidden; padding: 4px 0; }
.marquee-track { display: flex; gap: 18px; width: max-content; animation: marquee-x 48s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee.paused .marquee-track { animation-play-state: paused; }
.marquee-track .card { flex: 0 0 320px; width: 320px; }
@keyframes marquee-x {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.marquee::before, .marquee::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 56px; z-index: 2; pointer-events: none;
}
.marquee::before { left: 0; background: linear-gradient(90deg, #eef6fc, rgba(238, 246, 252, 0)); }
.marquee::after { right: 0; background: linear-gradient(-90deg, #eef6fc, rgba(238, 246, 252, 0)); }
.marquee-bar { display: flex; justify-content: flex-end; margin-top: 14px; }
.marquee-btn {
  background: #fff; border: 1px solid var(--line); color: var(--text-muted);
  border-radius: 999px; padding: 6px 16px; font-size: 13px; cursor: pointer; font-family: inherit;
}
.marquee-btn:hover { border-color: var(--brand); color: var(--brand); }
@media (max-width: 640px) {
  .marquee-track .card { flex: 0 0 245px; width: 245px; }
  .marquee::before, .marquee::after { width: 34px; }
}

/* ---------- 资质展示跑马灯（白底区） ---------- */
.marquee--white::before { background: linear-gradient(90deg, #fff, rgba(255, 255, 255, 0)); }
.marquee--white::after { background: linear-gradient(-90deg, #fff, rgba(255, 255, 255, 0)); }
.cert-track { animation-duration: 42s; }
.cert {
  flex: 0 0 420px; width: 420px; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 10px; display: block; transition: border-color .2s, box-shadow .2s;
}
.cert:hover { border-color: var(--brand); box-shadow: 0 8px 20px rgba(26, 111, 176, .13); }
.cert img { display: block; width: 100%; height: 300px; object-fit: contain; background: #f7fafc; border-radius: 3px; }
.cert-ph {
  height: 322px; display: flex; align-items: center; justify-content: center;
  border-style: dashed; color: var(--text-light); font-size: 14px; background: #fafcfe;
}
@media (max-width: 640px) {
  .cert { flex: 0 0 300px; width: 300px; }
  .cert img { height: 215px; }
  .cert-ph { height: 237px; }
  .cert-track { animation-duration: 34s; }
}

/* ---------- 核心优势页：合作流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 12px; text-align: center; transition: border-color .2s; }
.step:hover { border-color: var(--brand); }
.step .n { display: inline-block; width: 26px; height: 26px; line-height: 26px; border-radius: 50%; background: var(--brand); color: #fff; font-size: 13px; font-weight: 700; margin-bottom: 8px; }
.step h4 { font-size: 14.5px; font-weight: 700; color: var(--text); }
.step p { font-size: 12.5px; color: var(--text-muted); margin-top: 5px; line-height: 1.6; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .steps { grid-template-columns: repeat(2, 1fr); } .step h4 { font-size: 13.5px; } }

/* ---------- 资质展示：两张并排 ---------- */
.cert-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.cert-grid .cert { width: auto; flex: none; padding: 12px; text-align: center; }
.cert-grid .cert img { width: 100%; height: auto; max-height: 420px; object-fit: contain; }
.cert-cap { display: block; margin-top: 10px; font-size: 14px; font-weight: 600; color: var(--text); }
@media (max-width: 900px) { .cert-grid { grid-template-columns: 1fr; gap: 16px; } .cert-grid .cert img { max-height: none; } }

/* ---------- 常见问题 ---------- */
.faq { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.faq-item { padding: 16px 20px; border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 0; }
.faq-item h4 { font-size: 15.5px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.faq-item h4::before { content: "Q  "; color: var(--brand); font-weight: 700; }
.faq-item p { font-size: 14px; color: #4a5b68; }
.faq-item p::before { content: "A  "; color: var(--text-light); font-weight: 700; }
.faq-item p b { color: var(--brand-dark); }

/* ---------- 首页首屏：卖点 / 主营产品 / 真实数据 ---------- */
.hero-points { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 20px; }
.hero-points span {
  background: rgba(255, 255, 255, .18); border: 1px solid rgba(255, 255, 255, .38);
  color: #fff; border-radius: 999px; padding: 5px 14px; font-size: 13.5px; font-weight: 600;
}
.hero-tags { margin: 15px 0 0; font-size: 14.5px; font-weight: 400; line-height: 1.9; color: rgba(255, 255, 255, .92); letter-spacing: .5px; }
.hero-tel { font-size: 17px; }
.hero-tel a { font-size: 23px; }
.stat b.num2 { display: block; font-size: 17px; font-weight: 700; color: var(--brand-dark); line-height: 1.5; }
.about-stats { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 22px; }
.about-stats .stat {
  background: #eef6fc; border-left: 3px solid var(--brand); border-radius: 4px;
  padding: 10px 16px; min-width: 168px; text-align: left;
}
.about-stats .stat span { display: block; font-size: 12.5px; color: var(--text-muted); margin-top: 2px; }
.about-cert { margin-top: 16px; font-size: 14px; color: var(--text-muted); }
.about-cert a { color: var(--brand); font-weight: 600; }
.about-cert a:hover { color: var(--brand-dark); }
@media (max-width: 640px) { .hero-tel a { font-size: 20px; } .stat b.num2 { font-size: 19px; } }

/* 锚点跳转时不被固定导航挡住 */
section[id] { scroll-margin-top: 78px; }

/* ---------- 首屏背景图（仓库实拍） ---------- */
.hero {
  background:
    linear-gradient(rgba(9, 42, 68, .74), rgba(15, 72, 110, .80)),
    url('../img/warehouse.webp') center / cover no-repeat;
}

/* ---------- 首页资质缩略图 ---------- */
.cert-thumb {
  display: inline-block; margin-top: 12px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}
.cert-thumb:hover { border-color: var(--brand); box-shadow: 0 8px 20px rgba(26, 111, 176, .13); }
.cert-thumb img { display: block; width: 230px; height: auto; }
.cert-thumb span { display: block; font-size: 12.5px; color: var(--text-muted); padding: 7px 8px; text-align: center; }

/* ---------- 微信二维码 ---------- */
.wechat-box {
  display: flex; gap: 14px; align-items: center; margin-top: 16px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px;
}
.wechat-box img { width: 112px; height: 112px; display: block; flex: 0 0 112px; }
.wechat-title { font-size: 15.5px; font-weight: 700; color: var(--text); }
.wechat-desc { font-size: 13px; color: var(--text-muted); margin-top: 6px; line-height: 1.7; }
@media (max-width: 640px) { .cert-thumb img { width: 100%; } }

/* ---------- 页脚微信二维码 ---------- */
.footer-brand { flex-wrap: wrap; }
.footer-qr { text-align: center; margin-left: 12px; }
.footer-qr img { width: 86px; height: 86px; display: block; background: #fff; padding: 4px; border-radius: 4px; }
.footer-qr span { display: block; font-size: 12px; color: rgba(255, 255, 255, .72); margin-top: 6px; }
@media (max-width: 900px) { .footer-qr { margin-left: 0; } }

/* ---------- 问答分页（每页 4 条） ---------- */
.faq { scroll-margin-top: 92px; }
.faq-pager { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 16px; }
.faq-pager button {
  background: #fff; border: 1px solid var(--line); color: var(--text);
  border-radius: var(--radius); padding: 7px 16px; font-size: 14px; cursor: pointer; font-family: inherit;
}
.faq-pager button:hover:not(:disabled) { border-color: var(--brand); color: var(--brand); }
.faq-pager button:disabled { opacity: .45; cursor: default; }
.faq-pager .pg-info { font-size: 13.5px; color: var(--text-muted); min-width: 84px; text-align: center; }

/* ---------- 回到顶部按钮 ---------- */
.to-top {
  position: fixed; right: 24px; bottom: 28px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--brand); color: #fff; font-size: 22px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 20px rgba(26, 111, 176, .32);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .25s, transform .25s, visibility .25s, background .2s;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--brand-dark); }
@media (max-width: 640px) { .to-top { right: 14px; bottom: 18px; width: 42px; height: 42px; font-size: 20px; } }

/* ---------- 下半区两栏等高：留言表单填满右栏 ---------- */
.contact-page-grid { align-items: stretch; }
.contact-block { display: flex; flex-direction: column; }
.contact-form { flex: 1 1 auto; }
.contact-form textarea { flex: 1 1 auto; min-height: 150px; }

/* ---------- 联系页：标题动作条 / 复制地址 / 表单提示 ---------- */
.head-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; padding-left: 14px; }
.head-actions a {
  display: inline-block; padding: 10px 20px; border-radius: var(--radius);
  font-size: 14.5px; font-weight: 600; border: 1px solid transparent;
  transition: background .2s, border-color .2s;
}
.head-actions .btn-white { background: #fff; color: var(--brand-dark); }
.head-actions .btn-white:hover { background: #eaf4fb; }
.head-actions .btn-outline { border-color: rgba(255, 255, 255, .78); color: #fff; }
.head-actions .btn-outline:hover { background: rgba(255, 255, 255, .16); }

.copy-addr {
  margin-left: 10px; background: #eef6fc; border: 1px solid #cfe4f3; color: var(--brand-dark);
  border-radius: 6px; padding: 4px 10px; font-size: 12.5px; cursor: pointer; font-family: inherit; white-space: nowrap;
}
.copy-addr:hover { background: #dceaf7; }

.contact-form select {
  font-family: inherit; font-size: 14px; color: var(--text);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 11px 13px; background: #fff; outline: none;
}
.contact-form select:focus { border-color: var(--brand); }
.form-ok { font-size: 14px; font-weight: 600; color: #12a05c; }
@media (max-width: 640px) { .head-actions { padding-left: 0; gap: 8px; } .head-actions a { padding: 9px 15px; font-size: 14px; } }

/* ---------- 悬浮在线客服气泡 ---------- */
.cs-widget { position: fixed; right: 24px; bottom: 88px; z-index: 95; font-size: 14px; }
.cs-fab {
  display: flex; align-items: center; gap: 7px; padding: 0 16px; height: 46px;
  border: 0; border-radius: 23px; cursor: pointer;
  background: var(--brand); color: #fff; font: inherit; font-size: 14.5px; font-weight: 600;
  box-shadow: 0 8px 20px rgba(26, 111, 176, .32); transition: background .2s;
}
.cs-fab:hover { background: var(--brand-dark); }
.cs-fab-ico { font-size: 16px; }
.cs-badge {
  position: absolute; top: -5px; right: -3px; min-width: 18px; height: 18px; padding: 0 5px;
  border-radius: 9px; background: #e64545; color: #fff; font-size: 11.5px; line-height: 18px;
  text-align: center; font-weight: 700;
}
.cs-panel {
  position: absolute; right: 0; bottom: 58px; width: 336px; height: 470px;
  display: flex; flex-direction: column; overflow: hidden;
  background: #fff; border: 1px solid var(--line, #e6ecf2); border-radius: 14px;
  box-shadow: 0 18px 44px rgba(16, 57, 90, .22);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: opacity .22s, transform .22s, visibility .22s;
}
.cs-widget.open .cs-panel { opacity: 1; visibility: visible; transform: translateY(0); }
.cs-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px; background: var(--brand); color: #fff;
}
.cs-head strong { display: block; font-size: 15px; }
.cs-head span { font-size: 12px; opacity: .86; }
.cs-close { border: 0; background: none; color: #fff; font-size: 21px; line-height: 1; cursor: pointer; opacity: .9; padding: 0 2px; }
.cs-close:hover { opacity: 1; }
.cs-body { flex: 1 1 auto; overflow-y: auto; padding: 14px 14px 6px; background: #f5f9fd; }
.cs-msg { display: flex; margin-bottom: 10px; }
.cs-msg.bot { justify-content: flex-start; }
.cs-msg.me { justify-content: flex-end; }
.cs-bubble {
  max-width: 82%; padding: 9px 12px; border-radius: 12px;
  font-size: 13.5px; line-height: 1.62; word-break: break-word;
}
.cs-msg.bot .cs-bubble { background: #fff; border: 1px solid #e5edf5; color: #2b3a48; border-top-left-radius: 4px; }
.cs-msg.me .cs-bubble { background: var(--brand); color: #fff; border-top-right-radius: 4px; }
.cs-bubble a { color: var(--brand); font-weight: 600; }
.cs-qr-in { text-align: center; }
.cs-qr-in img { width: 128px; height: 128px; border-radius: 8px; background: #fff; display: block; margin: 0 auto 6px; }
.cs-qr-in span { font-size: 12.5px; color: #6b7d8d; }
.cs-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: -2px 0 12px; }
.cs-chip {
  border: 1px solid #cfe1f2; background: #fff; color: var(--brand); cursor: pointer;
  border-radius: 15px; padding: 6px 12px; font-size: 13px; font-family: inherit;
  transition: background .18s, border-color .18s;
}
.cs-chip:hover { background: #eaf3fc; border-color: var(--brand); }
.cs-typing .cs-bubble { display: flex; gap: 4px; align-items: center; padding: 12px; }
.cs-typing i { width: 6px; height: 6px; border-radius: 50%; background: #b9c9d8; animation: csblink 1.1s infinite; }
.cs-typing i:nth-child(2) { animation-delay: .18s; }
.cs-typing i:nth-child(3) { animation-delay: .36s; }
@keyframes csblink { 0%, 60%, 100% { opacity: .3; } 30% { opacity: 1; } }
.cs-quick {
  display: flex; gap: 14px; padding: 8px 14px 6px; border-top: 1px solid #eef2f6;
  font-size: 12.5px; color: #6b7d8d; background: #fff;
}
.cs-quick a, .cs-quick button {
  color: var(--brand); text-decoration: none; background: none; border: 0; cursor: pointer;
  font-family: inherit; font-size: 12.5px; padding: 0;
}
.cs-quick a:hover, .cs-quick button:hover { text-decoration: underline; }
.cs-foot { display: flex; gap: 8px; padding: 6px 12px 12px; background: #fff; }
.cs-foot input {
  flex: 1 1 auto; height: 34px; padding: 0 11px; font-family: inherit; font-size: 13.5px;
  border: 1px solid #dfe8f1; border-radius: 17px; outline: none; color: #2b3a48;
}
.cs-foot input:focus { border-color: var(--brand); }
.cs-foot input:disabled { background: #f4f7fa; color: #9fb0c0; }
.cs-send {
  flex: 0 0 auto; height: 34px; padding: 0 16px; border: 0; border-radius: 17px; cursor: pointer;
  background: var(--brand); color: #fff; font: inherit; font-size: 13.5px; font-weight: 600;
}
.cs-send:hover { background: var(--brand-dark); }
.cs-send:disabled { background: #b8cde0; cursor: default; }
@media (max-width: 640px) {
  /* 容器必须撑满宽度，否则 .cs-panel 的 left/right 会参照只有按钮宽的父盒，被挤成 100px */
  .cs-widget { left: 0; right: 0; bottom: 74px; display: flex; justify-content: flex-end; padding: 0 14px; box-sizing: border-box; }
  .cs-fab { height: 42px; padding: 0 14px; font-size: 14px; }
  .cs-panel { left: 12px; right: 12px; width: auto; bottom: 54px; height: 64vh; max-height: 500px; }
}

/* ---------- 全站：左侧悬浮导航（main.js 注入） ---------- */
.float-nav {
  position: fixed; left: 20px; top: 50%; transform: translateY(-50%); z-index: 80;
  display: flex; flex-direction: column; gap: 2px; padding: 10px;
  background: rgba(255, 255, 255, .97); border: 1px solid var(--line); border-radius: 12px;
  box-shadow: 0 10px 26px rgba(16, 57, 90, .12);
}
.float-nav .fn-item {
  display: flex; align-items: center; gap: 8px; white-space: nowrap;
  font-size: 13.5px; color: #3d4c59; text-decoration: none; padding: 8px 10px;
  border-radius: 8px; transition: background .18s, color .18s;
}
.float-nav .fn-item:hover { background: #f1f8fd; color: var(--brand); }
.float-nav .fn-item.active { background: #e9f4fd; color: var(--brand); font-weight: 600; }
.float-nav .fn-item.active .fn-ico { opacity: 1; }
.float-nav .fn-ico { width: 15px; text-align: center; font-size: 13px; opacity: .9; }
/* 中等宽度（1000-1359px）：降级为图标条，不再整块消失；鼠标悬停显示文字 */
@media (max-width: 1359px) {
  .float-nav { left: 4px; padding: 4px; gap: 1px; border-radius: 10px; }
  .float-nav .fn-item { width: 24px; padding: 8px 4px; justify-content: center; position: relative; }
  .float-nav .fn-txt {
    display: none; position: absolute; left: 34px; top: 50%; transform: translateY(-50%);
    background: #10334f; color: #fff; font-size: 12.5px; line-height: 1.2; padding: 5px 10px;
    border-radius: 6px; white-space: nowrap; box-shadow: 0 8px 18px rgba(0, 0, 0, .2); z-index: 2;
  }
  .float-nav .fn-item:hover .fn-txt { display: block; }
}
@media (max-width: 999px) { .float-nav { display: none; } }
/* ---------- 客服窗快捷行允许换行（加了 QQ 入口） ---------- */
.cs-quick { flex-wrap: wrap; row-gap: 7px; }
/* ---------- 手机端：咨询电话括号另起一行，避免「工作/时间」被拆开 ---------- */
@media (max-width: 720px) {
  .tel-hours { display: block; margin-top: 6px; font-size: 13.5px; }
}

/* ---------- 产品独立页 ---------- */
.page-crumb { font-size: 13px; color: rgba(255, 255, 255, .82); margin-bottom: 10px; padding-left: 14px; }
.page-crumb a { color: rgba(255, 255, 255, .92); text-decoration: none; }
.page-crumb a:hover { color: #fff; text-decoration: underline; }
.prod-hero { display: flex; gap: 34px; align-items: flex-start; }
.prod-photo { flex: 0 0 320px; }
.prod-photo img { width: 100%; height: auto; display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.prod-facts { flex: 1 1 auto; min-width: 0; }
.prod-h2 { font-size: 20px; color: #10395a; margin: 0 0 14px; }
.prod-body .prod-h2 { margin-top: 32px; }
.prod-body > .container > .prod-h2:first-child { margin-top: 0; }
.prod-p { font-size: 15px; line-height: 1.95; color: #3d4c59; margin: 0 0 8px; }
.fact-list { list-style: none; margin: 0 0 18px; padding: 0; }
.fact-list li { display: flex; gap: 12px; padding: 9px 0; border-bottom: 1px dashed #e8eef4; font-size: 14.5px; }
.fact-list b { flex: 0 0 80px; color: #6b7d8d; font-weight: 500; }
.fact-list span { color: #2b3a48; }
.prod-cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 18px 0 12px; }
.prod-cta .cta-tel { display: inline-block; padding: 11px 20px; border-radius: var(--radius); background: var(--brand); color: #fff; font-weight: 600; font-size: 15px; text-decoration: none; }
.prod-cta .cta-tel:hover { background: var(--brand-dark); }
.prod-cta .btn-cta { display: inline-block; padding: 11px 20px; border-radius: var(--radius); border: 1px solid var(--brand); color: var(--brand); font-weight: 600; font-size: 15px; text-decoration: none; }
.prod-cta .btn-cta:hover { background: #eff7fd; }
.bullet-list { margin: 0 0 6px; padding-left: 20px; }
.bullet-list li { font-size: 14.5px; line-height: 1.95; color: #3d4c59; margin-bottom: 5px; }
.rel-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.rel-item { display: block; padding: 13px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; color: #10395a; font-weight: 600; font-size: 14.5px; transition: border-color .2s, box-shadow .2s; }
.rel-item span { display: block; font-weight: 400; font-size: 12.5px; color: #6b7d8d; margin-top: 5px; }
.rel-item:hover { border-color: var(--brand); box-shadow: 0 6px 16px rgba(26, 111, 176, .10); }
.card { position: relative; }
.card-more { display: inline-block; margin-top: 10px; font-size: 13.5px; font-weight: 600; color: var(--brand); text-decoration: none; }
.card-more::after { content: ""; position: absolute; inset: 0; }
.card:hover .card-more { text-decoration: underline; }
@media (max-width: 900px) {
  .prod-hero { flex-direction: column; gap: 20px; }
  .prod-photo { flex: 1 1 auto; width: 100%; }
  .rel-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) { .rel-grid { grid-template-columns: 1fr; } }
.grade-name { color: var(--brand); }

/* ---------- 首页：产品卡整块可点 / 微信块 / 资质入口 ---------- */
.card-link { position: absolute; inset: 0; z-index: 2; }
.wechat-box { display: flex; align-items: center; gap: 14px; margin-top: 18px; padding: 14px; background: #f5fafd; border: 1px solid var(--line); border-radius: var(--radius); }
.wechat-box img { width: 92px; height: 92px; border-radius: 8px; background: #fff; border: 1px solid #e8eef4; flex: 0 0 auto; }
.wechat-box b { display: block; font-size: 15px; color: #10395a; margin-bottom: 4px; }
.wechat-box span { font-size: 13px; color: #6b7d8d; line-height: 1.7; }
.cert-entry { margin: 26px 0 0; padding-top: 18px; border-top: 1px dashed #e2eaf2; font-size: 14px; color: #5a6a78; text-align: center; }

/* ---------- 首页「联系我们」：两栏等高、底部对齐 ---------- */
.contact-grid { align-items: start; }
.contact-grid .contact-info { display: flex; flex-direction: column; }
.contact-grid .contact-info .wechat-box { margin-top: 18px; }
.contact-grid .contact-form { display: flex; flex-direction: column; }
.contact-grid .contact-form textarea { flex: 1 1 auto; min-height: 120px; }
.contact-grid .contact-form .form-tip { margin-bottom: 0; }
.cert-entry a { color: var(--brand); font-weight: 600; text-decoration: none; }
.cert-entry a:hover { text-decoration: underline; }
@media (max-width: 640px) {
  .wechat-box img { width: 76px; height: 76px; }
}
/* ---------- 首页「联系我们」两栏小标题 ---------- */
.col-title {
  font-size: 17px; color: #10395a; font-weight: 700; line-height: 1.3;
  margin: 0 0 16px; padding-left: 11px; border-left: 3px solid var(--brand);
}
.contact-grid .contact-form .col-title { margin-bottom: 14px; }
/* ---------- 行业文章 ---------- */
.article-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.article-card { display: block; padding: 20px 22px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; transition: border-color .2s, box-shadow .2s, transform .2s; }
.article-card:hover { border-color: var(--brand); box-shadow: 0 8px 22px rgba(26, 111, 176, .10); transform: translateY(-2px); }
.article-card .ac-date { font-size: 12.5px; color: #95a3b1; }
.article-card h3 { font-size: 17px; color: #10395a; margin: 8px 0 10px; line-height: 1.5; }
.article-card p { font-size: 14px; color: #6b7d8d; line-height: 1.8; margin: 0 0 12px; }
.article-card .ac-more { font-size: 13.5px; font-weight: 600; color: var(--brand); }
.article-wrap { max-width: 880px; }
.article-body { font-size: 15.5px; line-height: 2; color: #33424f; }
.article-body h2 { font-size: 19px; color: #10395a; margin: 30px 0 12px; padding-left: 11px; border-left: 3px solid var(--brand); }
.article-body p { margin: 0 0 14px; }
.article-body ul { margin: 0 0 14px; padding-left: 22px; }
.article-body li { margin-bottom: 8px; }
.article-body b { color: #10395a; }
.article-back { margin-top: 34px; padding-top: 18px; border-top: 1px dashed #e2eaf2; font-size: 14px; }
.article-back a { color: var(--brand); font-weight: 600; text-decoration: none; }
.article-back a:hover { text-decoration: underline; }
@media (max-width: 760px) { .article-list { grid-template-columns: 1fr; } }
/* ---------- 页脚瘦身：导航 + 版权备案 合成右列 ---------- */
.footer-right { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
.footer-right .footer-nav { padding-top: 0; justify-content: flex-end; }
.footer-right .footer-legal { padding-top: 0; text-align: right; }
.footer-right .footer-legal p { margin: 0; font-size: 12.5px; }
@media (max-width: 900px) {
  .footer-right { align-items: flex-start; width: 100%; }
  .footer-right .footer-nav, .footer-right .footer-legal { justify-content: flex-start; text-align: left; }
}
/* ---------- SEO：仅供搜索引擎阅读的隐藏文字 ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
/* H1 里的 <br> 与隐藏文字：保证视觉不变 */
.hero h1 .sr-only { display: block; }
.hero .hero-tags { margin: 14px auto 0; }
/* ---------- 手机端底部常驻联系条 ---------- */
.m-bar { display: none; }
@media (max-width: 760px) {
  .m-bar {
    display: grid; grid-template-columns: repeat(3, 1fr); position: fixed;
    left: 0; right: 0; bottom: 0; z-index: 120; background: #fff;
    border-top: 1px solid var(--line); box-shadow: 0 -4px 16px rgba(16, 57, 90, .10);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }
  .m-bar a, .m-bar button {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 3px; padding: 9px 4px 10px; font-size: 12.5px; font-weight: 600;
    color: var(--brand); background: none; border: 0; font-family: inherit;
    text-decoration: none; line-height: 1.2; cursor: pointer;
  }
  .m-bar a span, .m-bar button span { font-size: 17px; line-height: 1; }
  .m-bar > *:hover { background: #f4f9fd; }
  body { padding-bottom: 62px; }
  /* 悬浮客服与回到顶部上移，避免被底部条压住 */
  .cs-widget { bottom: 128px !important; }
  .to-top { bottom: 74px !important; }
  /* 悬浮导航手机端本来就隐藏 */
}
/* ---------- 手机端：首页产品跑马灯改静态两列 ---------- */
@media (max-width: 760px) {
  .marquee { overflow: visible; }
  .marquee::before, .marquee::after { display: none; }
  .marquee-track {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px;
    width: auto !important; animation: none !important; transform: none !important;
  }
  .marquee-track .card { flex: none; width: auto; }
  .marquee-track .card:nth-child(n+10) { display: none; }
  .marquee-bar { display: none; }
}
/* ---------- 应用领域 ---------- */
.ind-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.ind-card { padding: 16px 18px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.ind-card h3 { font-size: 15.5px; color: #10395a; margin: 0 0 6px; }
.ind-card p { font-size: 13.5px; color: #6b7d8d; margin: 0; line-height: 1.7; }
@media (max-width: 900px) { .ind-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .ind-grid { grid-template-columns: 1fr; } }
/* ---------- 首页：相邻同底色区块之间收紧间距（原本各 64px 共 128px 显得空） ---------- */
.sec-tight-b { padding-bottom: 32px; }
.sec-tight-t { padding-top: 32px; }
@media (max-width: 640px) {
  .sec-tight-b { padding-bottom: 22px; }
  .sec-tight-t { padding-top: 22px; }
}
.sec-tight-b2 { padding-bottom: 14px; }
.sec-tight-t2 { padding-top: 14px; }
@media (max-width: 640px) {
  .sec-tight-b2 { padding-bottom: 10px; }
  .sec-tight-t2 { padding-top: 10px; }
}
/* ---------- 全站间距精修（同底色区块之间收紧） ---------- */
/* 产品页：产品速览 -> 产品简介 */
section.section + section.section.prod-body { padding-top: 0; }
/* 各内页：顶部横幅 -> 正文 */
.section.page-head + .section { padding-top: 40px; }
/* 首页：首屏 -> 关于我们 */
.section.about.sec-tight-t { padding-top: 32px; }
@media (max-width: 640px) {
  .section.page-head + .section { padding-top: 28px; }
  .section.about.sec-tight-t { padding-top: 22px; }
}
/* ---------- 顶栏：公司名不折行 + 中等宽度收紧 ---------- */
.brand-name { white-space: nowrap; }
@media (max-width: 1200px) {
  .brand-name { font-size: 19px; }
  .site-nav { gap: 18px; }
  .nav-link { font-size: 14.5px; }
  .header-tel { font-size: 14px; padding-left: 16px; }
}
@media (max-width: 1000px) {
  .brand-name { font-size: 17px; }
  .site-nav { gap: 13px; }
  .nav-link { font-size: 14px; }
  .header-tel { display: none; }
}

/* ---------- 404 页 ---------- */
.s404 { max-width: 720px; text-align: center; padding: 10px 0 6px; }
.s404-code { font-size: 76px; line-height: 1; font-weight: 700; color: var(--brand); margin: 0 0 6px; letter-spacing: 2px; }
.s404-t1 { font-size: 19px; color: var(--ink); margin: 0 0 10px; }
.s404-t2 { font-size: 15px; color: var(--muted); margin: 0 0 30px; }
.s404-links { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.s404-btn { display: inline-block; padding: 11px 26px; border: 1px solid var(--brand); color: var(--brand); border-radius: 6px; font-size: 15px; font-weight: 600; transition: .18s; }
.s404-btn:hover { background: var(--brand); color: #fff; border-color: var(--brand); }
.s404-bar { background: var(--brand-light); border: 1px solid #d6e6f4; border-radius: 10px; padding: 20px 24px; display: flex; align-items: center; justify-content: center; gap: 22px; flex-wrap: wrap; }
.s404-bar span { color: var(--ink); font-size: 15px; }
.s404-tel { font-size: 22px; font-weight: 700; color: var(--brand); }
.s404-tel:hover { color: var(--brand-dark); }
@media (max-width: 760px) {
  .s404-code { font-size: 58px; }
  .s404-t1 { font-size: 17px; }
  .s404-links { gap: 10px; }
  .s404-btn { flex: 1 1 40%; text-align: center; padding: 11px 12px; }
}

/* ---------- 手机端表格卡片化 ---------- */
@media (max-width: 760px) {
  .table-wrap { overflow-x: visible; border: 0; background: none; }
  .spec-table { min-width: 0; border-collapse: separate; font-size: 14.5px; }
  .spec-table thead { display: none; }
  .spec-table, .spec-table tbody, .spec-table tr, .spec-table th, .spec-table td { display: block; width: 100%; box-sizing: border-box; }
  .spec-table tr { background: #fff; border: 1px solid var(--line); border-radius: 10px; margin-bottom: 12px; overflow: hidden; }
  .spec-table th { background: var(--brand-light); color: var(--brand-dark); border: 0; border-bottom: 1px solid var(--line); white-space: normal; padding: 10px 14px; font-size: 15px; }
  .spec-table td { border: 0; border-bottom: 1px dashed var(--line); padding: 11px 14px; }
  .spec-table tr > *:last-child { border-bottom: 0; }
  /* 两列表格 / 信息表：第一格当卡片标题 */
  .spec-table tr > td:first-child:not([data-label]) { background: var(--brand-light); color: var(--brand-dark); font-weight: 600; border-bottom: 1px solid var(--line); }
  .info-table th { width: auto; }
  /* 多列表格：每格用 data-label 做前缀 */
  .spec-table td[data-label]::before { content: attr(data-label) "："; color: var(--brand-dark); font-weight: 600; }
  .spec-table td[data-label]:first-child { background: var(--brand-light); border-bottom: 1px solid var(--line); }
  .spec-table td[data-label]:first-child::before { content: none; }
  .spec-table tr { display: flex; flex-direction: column; }
  .spec-table td[data-label]:first-child { order: -1; }

  /* 点击区放大（手指友好 ≥44px） */
  .footer-nav { gap: 2px 20px; }
  .footer-nav a { display: inline-block; padding: 12px 0; font-size: 14.5px; }
  .page-crumb a { display: inline-block; padding: 11px 5px; }
  .page-crumb { line-height: 1.5; }
  .contact-list li { padding: 12px 0; }
  .contact-list li a { display: inline-block; padding: 8px 0; }
  .footer-legal a { display: inline-block; padding: 9px 0; }
  .article-card { padding: 18px 16px; }
  .ac-more { display: inline-block; padding: 8px 0; }
}

/* ---------- 手机端小按钮抬高（手指友好） ---------- */
@media (max-width: 760px) {
  .card-more, .ac-more, .more, .pg-prev, .pg-next, .faq-pager button,
  .cs-foot a, .cs-quick a, .cs-send, .mini-btn {
    min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
  }
  .pg-prev, .pg-next, .faq-pager button { padding: 0 18px; }
  .card-more, .ac-more { padding: 10px 0; justify-content: flex-start; }
  .cs-quick a, .cs-foot a { padding: 10px 14px; min-height: 44px; }
  .btn-cta, .btn-primary, .btn-outline, .hero-btn { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
}

/* ---------- 手机端客服窗微调 ---------- */
@media (max-width: 640px) {
  .cs-head { padding: 12px 14px; }
  .cs-body { padding: 12px 12px 6px; }
  .cs-bubble { max-width: 88%; font-size: 13.5px; }
  .cs-chip { padding: 9px 14px; }
  .cs-foot input { height: 40px; }
  .cs-send { height: 40px; }
}

/* ---------- 供货区域卡 ---------- */
.region-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; }
.region-card { display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; transition: border-color .2s, box-shadow .2s; }
.region-card:hover { border-color: var(--brand); box-shadow: 0 8px 20px rgba(26, 111, 176, .12); }
.region-card b { display: block; font-size: 17px; color: var(--brand-dark); margin-bottom: 6px; }
.region-card span { font-size: 13px; color: var(--text-muted); line-height: 1.7; }
.footer-region { font-size: 12.5px; color: rgba(255, 255, 255, .62); padding-top: 8px; }
.footer-region a { color: rgba(255, 255, 255, .78); }
.footer-region a:hover { color: #fff; }
@media (max-width: 900px) { .region-grid { grid-template-columns: 1fr; gap: 12px; } }

/* ---------- 文章：相关内容 ---------- */
.rel-read { margin: 26px 0 18px; padding: 16px 18px; background: var(--brand-light); border: 1px solid #d6e6f4; border-radius: var(--radius); }
.rel-read h3 { font-size: 15px; color: var(--brand-dark); margin-bottom: 8px; }
.rel-read ul { display: flex; flex-direction: column; gap: 6px; }
.rel-read li { font-size: 14px; }
.rel-read a { color: var(--brand); font-weight: 600; }
.rel-read a:hover { color: var(--brand-dark); }

/* ---------- 页脚：访问统计入口 ---------- */
.footer-stat { font-size: 12.5px; color: rgba(255, 255, 255, .72); }
.footer-stat:hover { color: #fff; text-decoration: underline; }

/* 首页「联系方式」与二维码间距收紧（2026-09-20） */
.contact-grid{align-items:start}
.contact-grid .contact-info .wechat-box{margin-top:16px}

/* ---------- 关于我们：发货现场（2026-09-21） ---------- */
.flow-note { font-size: 14px; color: var(--text-muted); margin: 22px 0 0; }
.flow-shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 14px; }
.flow-shots figure { margin: 0; }
.flow-shots img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; display: block; border-radius: var(--radius); border: 1px solid var(--line); }
.flow-shots figcaption { font-size: 12.5px; color: var(--text-muted); margin-top: 7px; text-align: center; }
@media (max-width: 900px) { .flow-shots { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .flow-shots { grid-template-columns: 1fr; gap: 12px; }  }

/* ---------- 发货现场：相册 / 地区页 图（2026-09-21） ---------- */
.album { columns: 3; column-gap: 14px; }
.album figure { margin: 0 0 14px; break-inside: avoid; }
.album img { width: 100%; height: auto; display: block; border-radius: var(--radius); border: 1px solid var(--line); cursor: zoom-in; }
.album figcaption { font-size: 12.5px; color: var(--text-muted); margin-top: 7px; text-align: center; }
.region-shot { margin: 0; }
.region-shot img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; display: block; border-radius: var(--radius); border: 1px solid var(--line); }
.region-shot figcaption { font-size: 12.5px; color: var(--text-muted); margin-top: 7px; text-align: center; }
.lb { position: fixed; inset: 0; background: rgba(0,0,0,.84); display: none; align-items: center; justify-content: center; z-index: 99; padding: 24px; }
.lb.on { display: flex; }
.lb img { max-width: 96vw; max-height: 92vh; border-radius: 6px; }
@media (max-width: 900px) { .album { columns: 2; } }
@media (max-width: 560px) { .album { columns: 1; } }

/* ---------- 地区页：发货现场小图跑马灯（2026-09-21） ---------- */
.pstrip { position: relative; overflow: hidden; padding: 4px 0; }
.pstrip-track { display: flex; gap: 10px; width: max-content; animation: pstrip-x 70s linear infinite; }
.pstrip:hover .pstrip-track { animation-play-state: paused; }
.pstrip figure { margin: 0; flex: 0 0 172px; width: 172px; }
.pstrip img { width: 172px; height: 129px; object-fit: cover; display: block; border-radius: 6px; border: 1px solid var(--line); }
.pstrip::before, .pstrip::after { content: ""; position: absolute; top: 0; bottom: 0; width: 48px; z-index: 2; pointer-events: none; }
.pstrip::before { left: 0; background: linear-gradient(90deg, #fff, rgba(255, 255, 255, 0)); }
.pstrip::after { right: 0; background: linear-gradient(-90deg, #fff, rgba(255, 255, 255, 0)); }
@keyframes pstrip-x { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (max-width: 640px) { .pstrip figure { flex: 0 0 138px; width: 138px; } .pstrip img { width: 138px; height: 104px; } }

/* ---------- 发货现场页：两行大图跑马灯（2026-09-21） ---------- */
.bigstrip { position: relative; }
.bigstrip .brow { overflow: hidden; margin-bottom: 18px; }
.bigstrip .brow:last-of-type { margin-bottom: 0; }
.bigstrip .btrack { display: flex; gap: 16px; width: max-content; animation: bstrip-x 60s linear infinite; }
.bigstrip .brow.rev .btrack { animation-direction: reverse; }
.bigstrip:hover .btrack { animation-play-state: paused; }
.bigstrip figure { margin: 0; flex: 0 0 460px; width: 460px; }
.bigstrip img { width: 460px; height: 345px; object-fit: cover; display: block; border-radius: 8px; border: 1px solid var(--line); cursor: zoom-in; }
.bigstrip figcaption { font-size: 12.5px; color: var(--text-muted); margin-top: 7px; text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@keyframes bstrip-x { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (max-width: 1100px) { .bigstrip figure, .bigstrip img { flex-basis: 360px; width: 360px; } .bigstrip img { height: 270px; } }
@media (max-width: 640px) { .bigstrip figure, .bigstrip img { flex-basis: 236px; width: 236px; } .bigstrip img { height: 177px; } .bigstrip .btrack { animation-duration: 42s; } }

/* 页脚一句话（2026-09-22 加）：品牌名下方一行小字 */
.footer-brand .footer-slogan{
  font-size: 12.5px !important;
  font-weight: 400 !important;
  color: rgba(255,255,255,.66) !important;
  letter-spacing: .6px;
  margin-top: 2px;
  line-height: 1.5;
}

/* 关于我们：口号释义一行小字（2026-09-22 加） */
.idea-note{
  font-size: 13px;
  color: var(--text-light);
  letter-spacing: .3px;
  margin-top: 10px;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

/* 页脚：宽屏保持一行，导航/区域/版权列放到二维码右侧（2026-09-22 加） */
@media (min-width: 1080px) {
  .site-footer .footer-inner {
    display: grid;
    grid-template-columns: auto auto auto 1fr;
    align-items: start;
    gap: 26px;
  }
  .site-footer .footer-brand { display: contents; }
  .site-footer .footer-brand .brand-logo { align-self: start; }
  .site-footer .footer-brand > div:not(.footer-qr) { max-width: 340px; }
  .site-footer .footer-qr { margin-left: 0; align-self: start; }
  .site-footer .footer-right { justify-self: end; align-items: flex-end; }
}

/* 语言下拉（2026-09-22 加：替代原来的三个链接） */
.lang-select{
  appearance: none;
  -webkit-appearance: none;
  background: rgba(255,255,255,.08);
  color: inherit;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
  padding: 3px 22px 3px 9px;
  margin-left: 4px;
  cursor: pointer;
  line-height: 1.4;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: right 9px center, right 4px center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.lang-select:hover{ border-color: rgba(255,255,255,.6); }
.lang-select option{ color: #22303c; background: #fff; }
@media (max-width: 900px){ .lang-select{ margin-left: 0; font-size: 12px; } }

/* 顶栏防挤压（2026-09-22 加）：导航项不拆字，空间紧时收紧间距 */
.site-nav { flex-wrap: wrap; }
.nav-link { white-space: nowrap; }
.header-tel { white-space: nowrap; }
.lang-select { flex: 0 0 auto; }
@media (max-width: 1240px) {
  .site-nav { gap: 14px; }
  .nav-link { font-size: 14px; padding: 6px 0; }
  .header-inner { gap: 12px; }
  .brand-name { font-size: 18px; }
}
@media (max-width: 1100px) {
  .site-nav { gap: 10px; }
  .nav-link { font-size: 13.5px; }
  .brand-name { font-size: 16px; }
  .brand-logo { width: 34px; height: 34px; }
}
@media (max-width: 980px) {
  .site-nav { gap: 8px; }
  .nav-link { font-size: 13px; }
  .header-tel { font-size: 13px; }
}

/* 窄屏顶栏：优先保证导航一行（2026-09-22 加） */
@media (max-width: 1140px) {
  .header-inner { gap: 10px; }
  .site-nav { gap: 11px; }
  .nav-link { font-size: 13.5px; }
  .lang-select { padding: 3px 20px 3px 8px; font-size: 12.5px; margin-left: 8px; }
}
@media (max-width: 1060px) {
  .header-tel { display: none; }          /* 电话在首屏/页脚/联系页都有，顶栏可让位 */
  .site-nav { gap: 14px; }
  .nav-link { font-size: 14px; }
}
@media (max-width: 960px) {
  .brand-name { display: none; }          /* 只留 logo，进一步腾地方 */
  .site-nav { gap: 12px; }
}

/* 顶栏强制不换行（2026-09-22 加）：窄屏依次收起「公司名文字」「顶栏电话」 */
.site-nav { flex-wrap: nowrap; white-space: nowrap; }
@media (max-width: 1240px) {
  .brand-name { display: none; }       /* 只留 logo，名称在页脚/页面里都有 */
  .site-nav { gap: 13px; }
  .nav-link { font-size: 14px; padding: 6px 0; }
  .header-inner { gap: 12px; }
}
@media (max-width: 1080px) {
  .site-nav { gap: 11px; }
  .nav-link { font-size: 13.5px; }
  .lang-select { padding: 3px 20px 3px 8px; font-size: 12.5px; margin-left: 6px; }
}
@media (max-width: 1000px) {
  .header-tel { display: none; }       /* 电话在首屏/页脚/联系页均有 */
  .site-nav { gap: 14px; }
  .nav-link { font-size: 14px; }
}
@media (max-width: 940px) {
  .site-nav { gap: 11px; }
  .nav-link { font-size: 13.5px; }
}

/* ---------- 产品卡片"在线询价"按钮 ---------- */
.card-ask {
  position: absolute; left: 16px; bottom: 14px; z-index: 3;
  display: inline-block; font-size: 12.5px; font-weight: 600; letter-spacing: .5px;
  color: #fff; background: var(--brand); text-decoration: none;
  padding: 6px 14px; border-radius: 999px;
  box-shadow: 0 4px 12px rgba(26, 111, 176, .35);
  transition: background .25s, transform .25s;
}
.card-ask:hover { background: var(--brand-dark); color: #fff; transform: translateY(-2px); }