/* ==========================================================================
   湖州红缨再生资源有限公司 - 企业门户网站 全站设计系统
   工业蓝 · 深空灰 · 生态绿
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root {
  /* 品牌色 */
  --ink: #161b25;          /* 深空灰 - 深色区块/页脚 */
  --ink-2: #202734;
  --blue: #1e5aa8;         /* 工业蓝 - 主色 */
  --blue-deep: #15437f;
  --blue-dark: #0e2c57;
  --green: #2fa36b;        /* 生态绿 - 点缀 */
  --green-deep: #1f7a4e;

  /* 中性色 */
  --bg: #f5f7fa;
  --bg-soft: #edf1f6;
  --card: #ffffff;
  --line: #e4e9f0;
  --line-strong: #d5dce6;

  /* 文字 */
  --text: #2a303b;
  --text-2: #5a6472;
  --text-3: #8a93a0;
  --text-invert: #eef2f7;

  /* 功能色 */
  --warn: #e0a33a;

  /* 布局 */
  --container: 1200px;
  --radius: 12px;
  --radius-lg: 18px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(20, 30, 50, .05);
  --shadow-md: 0 8px 28px rgba(20, 30, 50, .09);
  --shadow-lg: 0 16px 48px rgba(20, 30, 50, .14);
  --header-h: 76px;

  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, p { margin: 0; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
figure { margin: 0; }

/* ---------- 通用布局 ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 84px 0; }
.section--gray { background: var(--bg-soft); }
.section--dark { background: var(--ink); color: var(--text-invert); }
.section--tight { padding: 60px 0; }

/* ---------- 区块标题 ---------- */
.section-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.section-head--left { margin: 0 0 40px; text-align: left; }
.section-head .kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 600; letter-spacing: 2px;
  color: var(--blue); text-transform: uppercase;
}
.section-head .kicker::before, .section-head .kicker::after {
  content: ""; height: 1px; width: 26px; background: currentColor; opacity: .5;
}
.section-head .title { font-size: 34px; font-weight: 700; line-height: 1.3; margin-top: 14px; letter-spacing: .5px; }
.section-head .desc { margin-top: 16px; color: var(--text-2); font-size: 15.5px; }
.section--dark .section-head .kicker { color: var(--green); }
.section--dark .section-head .title { color: #fff; }
.section--dark .section-head .desc { color: #aab3c2; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 30px; border-radius: 8px; font-size: 15px; font-weight: 600;
  line-height: 1; transition: all .25s ease; white-space: nowrap;
}
.btn--primary { background: var(--blue); color: #fff; }
.btn--primary:hover { background: var(--blue-deep); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--green { background: var(--green); color: #fff; }
.btn--green:hover { background: var(--green-deep); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--outline { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.55); }
.btn--outline:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn--ghost { background: transparent; color: var(--blue); border: 1px solid var(--blue); }
.btn--ghost:hover { background: var(--blue); color: #fff; }
.btn--lg { padding: 15px 38px; font-size: 16px; }
.btn--sm { padding: 9px 20px; font-size: 14px; }
.btn .ico { width: 17px; height: 17px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100; background: #fff;
  box-shadow: 0 1px 0 var(--line); transition: box-shadow .3s ease;
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo {
  width: 44px; height: 44px; flex: none; display: flex; align-items: center; justify-content: center;
  filter: drop-shadow(0 2px 5px rgba(20, 30, 50, .18));
}
.brand .logo img { width: 100%; height: 100%; display: block; }
.brand .logo-text { line-height: 1.2; }
.brand .logo-text b { display: block; font-size: 18px; font-weight: 700; color: var(--ink); letter-spacing: .5px; }
.brand .logo-text span { display: block; font-size: 11px; color: var(--text-3); letter-spacing: 1px; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav > li { position: relative; }
.main-nav > li > a {
  position: relative;
  display: flex; align-items: center; gap: 5px; padding: 10px 15px;
  font-size: 15.5px; font-weight: 500; color: var(--text); border-radius: 7px;
  transition: color .2s ease, background .2s ease;
}
.main-nav > li > a:hover { color: var(--blue); background: var(--bg-soft); }
.main-nav > li.active > a { color: var(--blue); font-weight: 600; }
.main-nav > li > a::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 2px;
  height: 3px; border-radius: 2px; background: var(--blue);
  transform: scaleX(0); transform-origin: left; transition: transform .28s ease;
}
.main-nav > li > a:hover::after,
.main-nav > li.active > a::after { transform: scaleX(1); }
.nav-caret { width: 12px; height: 12px; transition: transform .25s ease; }
.main-nav > li:hover .nav-caret { transform: rotate(180deg); }

/* 下拉菜单 */
.dropdown { position: absolute; top: 100%; left: 0; min-width: 200px; padding: 8px;
  background: #fff; border-radius: 10px; box-shadow: var(--shadow-lg); border: 1px solid var(--line);
  opacity: 0; visibility: hidden; transform: translateY(8px); transition: all .22s ease; }
.main-nav > li:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a { display: block; padding: 10px 14px; border-radius: 7px; font-size: 14.5px; color: var(--text-2); transition: all .2s ease; }
.dropdown a:hover { background: var(--bg-soft); color: var(--blue); padding-left: 18px; }

.header-cta { display: flex; align-items: center; gap: 12px; }
.header-phone { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--ink); font-size: 15px; }
.header-phone .ico { color: var(--blue); }

/* 移动端汉堡按钮 */
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 8px; flex-direction: column;
  align-items: center; justify-content: center; gap: 5px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: all .3s ease; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 首屏轮播 Banner ---------- */
.hero { position: relative; height: calc(100vh - var(--header-h)); min-height: 560px; max-height: 780px;
  overflow: hidden; background: var(--ink); }
.hero-slider, .hero-slide { position: absolute; inset: 0; }
.hero-slide { opacity: 0; visibility: hidden; transition: opacity .9s ease, visibility .9s ease; }
.hero-slide.active { opacity: 1; visibility: visible; z-index: 1; }
.hero-slide .bg { position: absolute; inset: 0; }
.hero-slide .bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-slide .bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(14, 20, 32, .92) 0%, rgba(14, 20, 32, .72) 45%, rgba(14, 20, 32, .28) 100%);
}
.hero-content { position: relative; z-index: 2; height: 100%; display: flex; align-items: center; }
.hero-inner { max-width: 640px; color: #fff; }
.hero-inner .tag {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 16px;
  border: 1px solid rgba(47, 163, 107, .6); border-radius: 30px;
  font-size: 13px; color: #7fe0ad; letter-spacing: 1px; margin-bottom: 24px;
}
.hero-inner h1 { font-size: 48px; font-weight: 800; line-height: 1.2; letter-spacing: 1px; }
.hero-inner h1 .hl { color: #7fe0ad; }
.hero-inner .sub { margin-top: 20px; font-size: 18px; color: #c7d0dd; line-height: 1.7; }
.hero-inner .sub strong { color: #fff; }
.hero-actions { display: flex; gap: 14px; margin-top: 36px; }
.hero-inner .nums { display: flex; gap: 40px; margin-top: 48px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,.16); }
.hero-inner .nums .n b { display: block; font-size: 30px; font-weight: 800; color: #fff; font-variant-numeric: tabular-nums; }
.hero-inner .nums .n b em { font-style: normal; font-size: 16px; color: #7fe0ad; margin-left: 2px; }
.hero-inner .nums .n span { font-size: 13px; color: #9aa6b6; }

/* 轮播控制 */
.hero-dots { position: absolute; z-index: 3; bottom: 34px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; }
.hero-dots button { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.4); transition: all .3s ease; }
.hero-dots button.active { width: 30px; border-radius: 6px; background: var(--green); }
.hero-arrow { position: absolute; z-index: 3; top: 50%; transform: translateY(-50%); width: 48px; height: 48px;
  border-radius: 50%; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25); color: #fff;
  display: flex; align-items: center; justify-content: center; transition: all .25s ease; }
.hero-arrow:hover { background: var(--blue); }
.hero-arrow--prev { left: 28px; }
.hero-arrow--next { right: 28px; }

/* ---------- 卡片通用 ---------- */
.card { background: var(--card); border-radius: var(--radius); border: 1px solid var(--line);
  transition: transform .3s ease, box-shadow .3s ease; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

/* ---------- 核心优势 ---------- */
.advantages { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv-card { padding: 34px 28px; position: relative; overflow: hidden; }
.adv-card .num { position: absolute; top: 14px; right: 20px; font-size: 52px; font-weight: 800; color: var(--bg-soft); line-height: 1; }
.adv-card .ico-box { width: 56px; height: 56px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(30,90,168,.1), rgba(30,90,168,.04)); color: var(--blue); margin-bottom: 20px; }
.adv-card .ico-box--green { background: linear-gradient(135deg, rgba(47,163,107,.12), rgba(47,163,107,.04)); color: var(--green); }
.adv-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.adv-card p { font-size: 14px; color: var(--text-2); line-height: 1.75; }
.adv-card p b { color: var(--blue); font-weight: 700; }

/* ---------- 数据概览 ---------- */
.stats-band { background: linear-gradient(120deg, var(--blue-dark), var(--blue) 60%, var(--green-deep) 130%); color: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat { text-align: center; padding: 20px 10px; }
.stat .num { font-size: 46px; font-weight: 800; line-height: 1.1; font-variant-numeric: tabular-nums; letter-spacing: 1px; }
.stat .num em { font-style: normal; font-size: 22px; margin-left: 3px; color: #7fe0ad; }
.stat .label { margin-top: 10px; font-size: 14px; color: #c8d3e2; }

/* ---------- 产品卡片 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.product-card { overflow: hidden; }
.product-card .thumb { position: relative; height: 260px; overflow: hidden; }
.product-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.product-card:hover .thumb img { transform: scale(1.06); }
.product-card .thumb .badge { position: absolute; top: 16px; left: 16px; padding: 6px 14px; border-radius: 6px;
  background: var(--blue); color: #fff; font-size: 12.5px; font-weight: 600; letter-spacing: 1px; }
.product-card .body { padding: 26px 28px 28px; }
.product-card h3 { font-size: 21px; font-weight: 700; }
.product-card .specs { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 18px; }
.product-card .specs li { padding: 5px 12px; background: var(--bg-soft); border-radius: 6px; font-size: 12.5px; color: var(--text-2); }
.product-card .desc { font-size: 14px; color: var(--text-2); line-height: 1.7; margin-bottom: 20px; }
.product-card .foot { display: flex; gap: 10px; }

/* ---------- 应用领域 ---------- */
.fields { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.field-item { text-align: center; padding: 34px 14px; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); transition: all .3s ease; }
.field-item:hover { border-color: var(--green); transform: translateY(-5px); box-shadow: var(--shadow-md); }
.field-item .ico { width: 58px; height: 58px; margin: 0 auto 16px; border-radius: 50%;
  background: var(--bg-soft); display: flex; align-items: center; justify-content: center; color: var(--blue); }
.field-item h4 { font-size: 16px; font-weight: 600; }
.field-item p { font-size: 12.5px; color: var(--text-3); margin-top: 6px; }

/* ---------- 流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; counter-reset: step; }
.step { position: relative; text-align: center; padding: 10px 14px; }
.step .dot { width: 74px; height: 74px; margin: 0 auto 18px; border-radius: 50%; background: #fff;
  border: 2px solid var(--line-strong); display: flex; align-items: center; justify-content: center;
  font-size: 28px; font-weight: 800; color: var(--blue); position: relative; transition: all .3s ease; }
.step:hover .dot { background: var(--blue); color: #fff; border-color: var(--blue); }
.step:not(:last-child)::after { content: ""; position: absolute; top: 37px; left: calc(50% + 38px); width: calc(100% - 76px);
  height: 2px; background: var(--line-strong); }
.step h4 { font-size: 16px; font-weight: 600; }
.step p { font-size: 12.5px; color: var(--text-3); margin-top: 6px; }

/* ---------- 新闻列表 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.news-card { overflow: hidden; }
.news-card .thumb { height: 190px; overflow: hidden; }
.news-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-card:hover .thumb img { transform: scale(1.06); }
.news-card .body { padding: 22px 24px 24px; }
.news-card .meta { display: flex; align-items: center; gap: 14px; font-size: 12.5px; color: var(--text-3); margin-bottom: 12px; }
.news-card .meta .cat { color: var(--blue); font-weight: 600; }
.news-card h3 { font-size: 17px; font-weight: 600; line-height: 1.5; transition: color .2s ease; }
.news-card:hover h3 { color: var(--blue); }
.news-card p { font-size: 13.5px; color: var(--text-2); margin-top: 10px; line-height: 1.7; }

/* ---------- CTA 转化区 ---------- */
.cta-band { position: relative; overflow: hidden; background: linear-gradient(120deg, var(--ink) 0%, var(--ink-2) 100%); color: #fff; }
.cta-band::before { content: ""; position: absolute; top: -60px; right: -60px; width: 320px; height: 320px;
  border-radius: 50%; background: radial-gradient(circle, rgba(47,163,107,.25), transparent 70%); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; position: relative; z-index: 1; }
.cta-inner h2 { font-size: 30px; font-weight: 700; }
.cta-inner p { margin-top: 12px; color: #aab3c2; font-size: 15px; }
.cta-actions { display: flex; gap: 14px; flex: none; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--ink); color: #9aa6b6; padding: 64px 0 0; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 40px; padding-bottom: 44px; }
.footer-brand .logo-row { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.footer-brand .logo-row .logo { width: 44px; height: 44px; flex: none; display: flex; align-items: center;
  justify-content: center; filter: drop-shadow(0 2px 5px rgba(0,0,0,.3)); }
.footer-brand .logo-row .logo img { width: 100%; height: 100%; display: block; }
.footer-brand .logo-row b { color: #fff; font-size: 18px; }
.footer-brand p { line-height: 1.8; color: #8892a1; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 20px; position: relative; padding-left: 14px; }
.footer-col h4::before { content: ""; position: absolute; left: 0; top: 3px; width: 4px; height: 16px; border-radius: 2px; background: var(--green); }
.footer-col li { margin-bottom: 11px; }
.footer-col a { color: #8892a1; transition: color .2s ease; }
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-contact li { display: flex; gap: 10px; margin-bottom: 14px; line-height: 1.6; }
.footer-contact .ico { flex: none; margin-top: 4px; color: var(--green); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 22px 0; text-align: center; font-size: 13px; color: #6e7887; }
.footer-bottom a { color: #8892a1; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 面包屑 + 内页头部 ---------- */
.page-hero {
  position: relative;
  padding: 84px 0;
  background:
    linear-gradient(115deg, rgba(13, 19, 29, .97) 0%, rgba(13, 34, 64, .94) 55%, rgba(14, 44, 87, .9) 100%),
    url(../images/banner-3.jpg) center 30% / cover no-repeat;
  color: #fff; overflow: hidden;
}
.page-hero::after { content: ""; position: absolute; right: -40px; top: -40px; width: 260px; height: 260px;
  border-radius: 50%; background: radial-gradient(circle, rgba(47,163,107,.2), transparent 70%); }
.page-hero h1 { font-size: 38px; font-weight: 800; letter-spacing: 1px; animation: heroUp .55s ease both; }
.page-hero .sub { margin-top: 12px; color: #aab3c2; font-size: 15px; animation: heroUp .55s ease .12s both; }
.breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 13px; color: #7e899a; margin-top: 18px; animation: heroUp .55s ease .2s both; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { opacity: .5; }

@keyframes heroUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 关于我们 ---------- */
.about-intro { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.about-intro .media { position: relative; }
.about-intro .media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.about-intro .media .float-card { position: absolute; left: -24px; bottom: -24px; background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 22px 26px; display: flex; align-items: center; gap: 16px; }
.about-intro .media .float-card .n { font-size: 34px; font-weight: 800; color: var(--green); }
.about-intro .media .float-card .t { font-size: 13px; color: var(--text-2); }
.about-intro .text h2 { font-size: 30px; font-weight: 700; margin-bottom: 20px; }
.about-intro .text p { color: var(--text-2); line-height: 1.9; margin-bottom: 16px; }
.about-intro .text p b { color: var(--text); }

/* 发展历程时间线 */
.timeline { position: relative; max-width: 860px; margin: 0 auto; }
.timeline::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; background: var(--line-strong); transform: translateX(-50%); }
.tl-item { position: relative; width: 50%; padding: 0 44px 46px; }
.tl-item:nth-child(odd) { left: 0; text-align: right; }
.tl-item:nth-child(even) { left: 50%; text-align: left; }
.tl-item .dot { position: absolute; top: 6px; width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 4px solid var(--blue); }
.tl-item:nth-child(odd) .dot { right: -8px; }
.tl-item:nth-child(even) .dot { left: -8px; }
.tl-item .year { font-size: 24px; font-weight: 800; color: var(--blue); font-variant-numeric: tabular-nums; }
.tl-item h4 { font-size: 17px; font-weight: 700; margin: 8px 0 8px; }
.tl-item p { font-size: 14px; color: var(--text-2); line-height: 1.7; }

/* 企业文化 */
.culture-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.culture-card { text-align: center; padding: 40px 22px; }
.culture-card .ico { width: 60px; height: 60px; margin: 0 auto 18px; border-radius: 14px; display: flex; align-items: center;
  justify-content: center; background: linear-gradient(135deg, rgba(30,90,168,.1), rgba(30,90,168,.04)); color: var(--blue); }
.culture-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.culture-card p { font-size: 13.5px; color: var(--text-2); }

/* ---------- 产品中心 ---------- */
.filter-tabs { display: flex; justify-content: center; gap: 12px; margin-bottom: 44px; }
.filter-tabs button { padding: 12px 30px; border-radius: 30px; font-size: 15px; font-weight: 600;
  background: #fff; border: 1px solid var(--line-strong); color: var(--text-2); transition: all .25s ease; }
.filter-tabs button.active, .filter-tabs button:hover { background: var(--blue); color: #fff; border-color: var(--blue); }
.product-detail-list .product-card { margin-bottom: 32px; }

/* 产品详情 */
.pd-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: start; }
.pd-gallery .main-img { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.pd-gallery .main-img img { width: 100%; height: 420px; object-fit: cover; }
.pd-info h1 { font-size: 32px; font-weight: 800; }
.pd-info .tag-row { display: flex; gap: 10px; margin: 16px 0; }
.pd-info .tag-row span { padding: 6px 14px; background: var(--bg-soft); border-radius: 6px; font-size: 13px; color: var(--blue); font-weight: 600; }
.pd-info .lead { font-size: 15px; color: var(--text-2); line-height: 1.8; }
.pd-info .meta-list { margin: 24px 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.pd-info .meta-list li { display: flex; padding: 14px 20px; border-bottom: 1px solid var(--line); font-size: 14px; }
.pd-info .meta-list li:last-child { border-bottom: none; }
.pd-info .meta-list li .k { width: 110px; flex: none; color: var(--text-3); }
.pd-info .meta-list li .v { color: var(--text); font-weight: 500; }
.pd-info .actions { display: flex; gap: 12px; margin-top: 8px; }

/* ---------- 生产实力 ---------- */
.equip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.equip-card { padding: 30px 26px; }
.equip-card .ico { width: 54px; height: 54px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(30,90,168,.1), rgba(30,90,168,.04)); color: var(--blue); margin-bottom: 18px; }
.equip-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.equip-card p { font-size: 13.5px; color: var(--text-2); line-height: 1.7; }

/* 工艺流程 */
.process-flow { display: flex; align-items: center; flex-wrap: wrap; gap: 0; justify-content: center; }
.pf-node { display: flex; flex-direction: column; align-items: center; padding: 12px; }
.pf-node .box { min-width: 118px; padding: 16px 20px; background: #fff; border: 1px solid var(--line-strong);
  border-radius: 10px; text-align: center; font-size: 14.5px; font-weight: 600; transition: all .3s ease; }
.pf-node:hover .box { background: var(--blue); color: #fff; border-color: var(--blue); }
.pf-node .idx { font-size: 11px; color: var(--text-3); margin-top: 8px; }
.pf-arrow { color: var(--green); font-size: 22px; padding: 0 6px; }

/* ---------- 环保资质 ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cert-card { text-align: center; padding: 30px 20px; }
.cert-card .ico { width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 14px; display: flex; align-items: center;
  justify-content: center; background: linear-gradient(135deg, rgba(47,163,107,.14), rgba(47,163,107,.05)); color: var(--green); }
.cert-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.cert-card p { font-size: 13px; color: var(--text-3); }

/* ---------- 联系我们 ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 18px; }
.ci-card { display: flex; gap: 18px; padding: 22px 24px; }
.ci-card .ico { width: 52px; height: 52px; flex: none; border-radius: 12px; display: flex; align-items: center;
  justify-content: center; background: linear-gradient(135deg, rgba(30,90,168,.1), rgba(30,90,168,.04)); color: var(--blue); }
.ci-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.ci-card p { font-size: 14px; color: var(--text-2); line-height: 1.6; }
.ci-card p b { color: var(--text); }
.map-box { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.map-box iframe { width: 100%; height: 320px; border: 0; display: block; }

/* 地图占位（未接入真实地图时） */
.map-placeholder {
  position: relative; height: 320px; overflow: hidden;
  background-color: #e9eef5;
  background-image:
    linear-gradient(rgba(30, 90, 168, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 90, 168, .09) 1px, transparent 1px);
  background-size: 34px 34px;
}
.map-placeholder::before {
  content: ""; position: absolute; left: -12%; top: 56%; width: 124%; height: 26px;
  background: #fff; transform: rotate(-7deg); box-shadow: 0 1px 5px rgba(20, 30, 50, .08);
}
.map-placeholder::after {
  content: ""; position: absolute; left: 34%; top: -12%; width: 16px; height: 124%;
  background: #fff; transform: rotate(10deg); box-shadow: 0 1px 5px rgba(20, 30, 50, .08);
}
.map-pin {
  position: absolute; left: 50%; top: 43%; transform: translate(-50%, -100%);
  color: #e5484d; z-index: 2; filter: drop-shadow(0 3px 5px rgba(0, 0, 0, .28));
}
.map-pulse {
  position: absolute; left: 50%; top: 45%; width: 12px; height: 12px; z-index: 1;
  transform: translate(-50%, -50%); border-radius: 50%;
  background: rgba(229, 72, 77, .4); animation: mapPulse 2.2s ease-out infinite;
}
@keyframes mapPulse {
  0% { box-shadow: 0 0 0 0 rgba(229, 72, 77, .45); }
  100% { box-shadow: 0 0 0 36px rgba(229, 72, 77, 0); }
}
.map-card {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%);
  background: #fff; border-radius: 10px; box-shadow: var(--shadow-md);
  padding: 13px 22px; text-align: center; z-index: 3; width: 300px; max-width: 92%;
}
.map-card b { display: block; font-size: 15px; color: var(--text); }
.map-card span { display: block; font-size: 12.5px; color: var(--text-2); margin-top: 4px; }
.map-card a { display: inline-block; margin-top: 9px; font-size: 13.5px; color: var(--blue); font-weight: 600; }
.map-card a:hover { color: var(--green); }

/* ---------- 表单 ---------- */
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 40px;
  box-shadow: var(--shadow-sm); }
.form-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.form-card .form-sub { color: var(--text-3); font-size: 14px; margin-bottom: 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.form-field label .req { color: #e5484d; margin-left: 3px; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; padding: 12px 16px; border: 1px solid var(--line-strong); border-radius: 8px;
  font-size: 14.5px; background: var(--bg); transition: all .2s ease; outline: none; }
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
  border-color: var(--blue); background: #fff; box-shadow: 0 0 0 3px rgba(30,90,168,.12); }
.form-field.has-error input, .form-field.has-error textarea { border-color: #e5484d; background: #fff8f8; }
.form-field textarea { resize: vertical; min-height: 120px; }
.form-tip { font-size: 12.5px; color: var(--text-3); margin-top: 12px; }
.form-success { display: none; background: rgba(47,163,107,.1); border: 1px solid rgba(47,163,107,.3); color: var(--green-deep);
  padding: 14px 18px; border-radius: 8px; font-size: 14px; margin-bottom: 18px; }
.form-success.show { display: block; }

/* ---------- 新闻详情 ---------- */
.article-wrap { max-width: 860px; margin: 0 auto; }
.article-header { text-align: center; margin-bottom: 40px; }
.article-header h1 { font-size: 30px; font-weight: 800; line-height: 1.4; }
.article-header .meta { display: flex; justify-content: center; gap: 20px; margin-top: 18px; font-size: 13.5px; color: var(--text-3); }
.article-header .meta .cat { color: var(--blue); font-weight: 600; }
.article-body { font-size: 16px; line-height: 1.9; color: var(--text); }
.article-body p { margin-bottom: 18px; }
.article-body h2 { font-size: 22px; font-weight: 700; margin: 34px 0 14px; }
.article-body img { border-radius: var(--radius); margin: 20px 0; }
.article-footer { margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line); }

/* ---------- 返回顶部 ---------- */
.back-top { position: fixed; right: 26px; bottom: 30px; width: 46px; height: 46px; border-radius: 10px;
  background: var(--blue); color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md); opacity: 0; visibility: hidden; transform: translateY(12px); transition: all .3s ease; z-index: 90; }
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--blue-deep); }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal.d1 { transition-delay: .08s; } .reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; } .reveal.d4 { transition-delay: .32s; }
.reveal.d5 { transition-delay: .4s; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .advantages { grid-template-columns: repeat(2, 1fr); }
  .fields { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .step:nth-child(n)::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-intro { grid-template-columns: 1fr; gap: 40px; }
  .pd-hero { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .section { padding: 60px 0; }
  .section-head .title { font-size: 27px; }
  .hero-inner h1 { font-size: 34px; }
  .hero-inner .sub { font-size: 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .product-grid, .news-grid { grid-template-columns: 1fr; }
  .equip-grid, .cert-grid, .culture-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; text-align: center; }

  /* 移动导航 */
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0; background: #fff;
    flex-direction: column; align-items: stretch; gap: 0; padding: 16px 20px 40px;
    overflow-y: auto; transform: translateX(100%); transition: transform .32s ease; z-index: 99;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav > li > a { padding: 15px 8px; font-size: 16px; border-bottom: 1px solid var(--bg-soft); }
  .main-nav > li.active > a::after { display: none; }
  .dropdown { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none;
    padding: 0 0 8px 16px; display: none; }
  .main-nav > li.open .dropdown { display: block; }
  .header-phone { display: none; }
  .header-cta .btn { display: none; }

  /* 时间线 */
  .timeline::before { left: 14px; }
  .tl-item { width: 100%; left: 0 !important; text-align: left !important; padding: 0 0 36px 48px; }
  .tl-item:nth-child(odd) .dot, .tl-item:nth-child(even) .dot { left: 6px; right: auto; }
}

@media (max-width: 560px) {
  .hero { min-height: 520px; }
  .hero-inner h1 { font-size: 28px; }
  .hero-inner .nums { gap: 22px; }
  .hero-inner .nums .n b { font-size: 24px; }
  .hero-arrow { display: none; }
  .advantages, .fields, .steps, .equip-grid, .cert-grid, .culture-grid, .stats-grid, .footer-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .btn--lg { padding: 13px 26px; }
  .form-card { padding: 28px 22px; }
  .stat .num { font-size: 38px; }
}