/* ============================================================
   安徽广晟环保工程有限公司 官网样式
   主题：环保科技蓝绿 | 浅色
   ============================================================ */
:root {
  --c-primary: #0e9f8a;
  --c-primary-d: #0a7c6d;
  --c-accent: #1586c3;
  --c-navy: #0c3346;
  --c-ink: #26363e;
  --c-muted: #5f7680;
  --c-line: #e1eeec;
  --c-soft: #f2faf8;
  --c-soft2: #e6f5f2;
  --c-white: #fff;
  --grad: linear-gradient(135deg, #0e9f8a 0%, #1586c3 100%);
  --grad-soft: linear-gradient(135deg, #e9f8f4 0%, #e7f2fb 100%);
  --shadow: 0 6px 24px rgba(13, 84, 96, .08);
  --shadow-lg: 0 14px 40px rgba(13, 84, 96, .14);
  --radius: 14px;
  --radius-lg: 20px;
  --header-h: 78px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--c-ink);
  background: var(--c-white);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 22px; }
::selection { background: rgba(14, 159, 138, .2); }

/* ---------- 顶部信息条 ---------- */
.topbar { background: var(--c-navy); color: #cfe5ee; font-size: 13px; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 36px; gap: 16px; }
.topbar a { display: inline-flex; align-items: center; gap: 6px; transition: color .2s; }
.topbar a:hover { color: #fff; }
.topbar .tb-right { display: flex; gap: 20px; }
.topbar svg { width: 14px; height: 14px; stroke: currentColor; }
.tb-phone { color: #fff; font-weight: 600; letter-spacing: .3px; }

/* ---------- 站点头部 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255,255,255,.97);
  border-bottom: 1px solid var(--c-line);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 20px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 46px; height: 46px; border-radius: 12px; flex: none;
  background: var(--grad); display: grid; place-items: center;
  box-shadow: 0 4px 12px rgba(14,159,138,.35);
}
.brand-mark svg { width: 26px; height: 26px; fill: #fff; }
.brand-text { line-height: 1.25; }
.brand-name { font-size: 20px; font-weight: 800; color: var(--c-navy); letter-spacing: .5px; }
.brand-name b { color: var(--c-primary); }
.brand-sub { font-size: 11px; color: var(--c-muted); letter-spacing: 1.6px; text-transform: uppercase; }
.main-nav ul { display: flex; gap: 4px; }
.main-nav a {
  display: block; padding: 8px 14px; border-radius: 8px; font-size: 15.5px;
  color: var(--c-ink); font-weight: 500; transition: all .2s; position: relative;
}
.main-nav a:hover { color: var(--c-primary); background: var(--c-soft); }
.main-nav a.active { color: var(--c-primary); font-weight: 700; }
.main-nav a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 3px;
  border-radius: 3px; background: var(--grad);
}
.header-cta { display: flex; align-items: center; gap: 8px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: none;
  border-radius: 10px; padding: 11px 22px; font-size: 15px; font-weight: 600;
  transition: all .22s; white-space: nowrap; }
.btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 6px 16px rgba(21,134,195,.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(14,159,138,.4); }
.btn-outline { background: #fff; color: var(--c-primary-d); border: 1.5px solid var(--c-primary); }
.btn-outline:hover { background: var(--c-soft); }
.btn-ghost { background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.55); }
.btn-ghost:hover { background: rgba(255,255,255,.28); }
.btn-lg { padding: 14px 30px; font-size: 16px; border-radius: 12px; }
.nav-toggle { display: none; background: none; border: none; width: 42px; height: 42px; border-radius: 8px; }
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: ""; display: block; width: 22px; height: 2px; background: var(--c-navy);
  margin: 5px auto; transition: .25s; border-radius: 2px;
}

/* ---------- 主视觉 Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(21,134,195,.55), transparent 60%),
    radial-gradient(700px 420px at -10% 110%, rgba(14,159,138,.5), transparent 55%),
    linear-gradient(135deg, #0b3b52 0%, #0c5d6d 45%, #0e8a80 100%);
}
/* 动态轮播背景 */
.hero-bg { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  opacity: 0; transform: scale(1.06); transition: opacity 1.1s ease, transform 6.5s linear;
}
.hero-slide.on { opacity: 1; transform: scale(1); }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(9,46,63,.88) 0%, rgba(11,66,86,.72) 46%, rgba(12,93,109,.45) 100%);
}
.hero-dots {
  position: absolute; right: 26px; bottom: 26px; z-index: 3; display: flex; gap: 9px;
}
.hero-dots button {
  width: 26px; height: 4px; border: 0; border-radius: 2px; cursor: pointer;
  background: rgba(255,255,255,.38); transition: .3s; padding: 0;
}
.hero-dots button.on { background: #6fe0c8; width: 38px; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .35;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='1.2'%3E%3Cpath d='M12 2.69l5.66 5.66a8 8 0 1 1-11.31 0z'/%3E%3C/svg%3E");
  background-size: 44px 44px;
}
.hero .container { position: relative; z-index: 1; padding-top: 84px; padding-bottom: 110px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.3);
  padding: 6px 16px; border-radius: 999px; font-size: 13.5px; letter-spacing: .6px;
  backdrop-filter: blur(4px);
}
.hero h1 { font-size: clamp(30px, 4.4vw, 52px); line-height: 1.2; font-weight: 800; margin: 22px 0 16px; letter-spacing: .5px; }
.hero h1 .hl { color: #6fe0c8; }
.hero p.lead { font-size: clamp(15px, 1.6vw, 18px); color: #d8ecf2; max-width: 640px; }
.hero-actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 0; margin-top: 56px; flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,.18); padding-top: 28px; }
.hero-stats .hs { padding-right: 44px; }
.hero-stats .hs + .hs { padding-left: 44px; border-left: 1px solid rgba(255,255,255,.18); }
.hero-stats b { display: block; font-size: 30px; font-weight: 800; color: #fff; }
.hero-stats span { font-size: 13.5px; color: #b9d8e2; }
.wave-divider { display: block; width: 100%; height: 70px; margin-top: -1px; fill: #fff; }

/* ---------- 页头横幅（内页） ---------- */
.page-hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(600px 320px at 88% -20%, rgba(21,134,195,.55), transparent 60%),
    linear-gradient(120deg, #0b3b52, #0e7d80);
}
.page-hero::after {
  content: ""; position: absolute; right: -80px; top: -80px; width: 340px; height: 340px;
  border: 34px solid rgba(255,255,255,.07); border-radius: 50%;
}
.page-hero .container { position: relative; z-index: 1; padding: 54px 22px 58px; }
.page-hero h1 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; }
.page-hero p { color: #c9e4ec; margin-top: 8px; max-width: 720px; font-size: 15px; }
.crumb { margin-top: 16px; font-size: 13.5px; color: #9fcbd8; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.crumb a { color: #fff; }
.crumb svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; }

/* ---------- 通用区块 ---------- */
.section { padding: 72px 0; }
.section.soft { background: var(--c-soft); }
.section-head { max-width: 720px; margin-bottom: 42px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--c-primary); font-weight: 700;
  font-size: 13.5px; letter-spacing: 3px; text-transform: uppercase; }
.kicker::before { content: ""; width: 22px; height: 2px; background: var(--grad); border-radius: 2px; }
.section-head.center .kicker::after { content: ""; width: 22px; height: 2px; background: var(--grad); border-radius: 2px; }
.section-head h2 { font-size: clamp(24px, 2.8vw, 34px); color: var(--c-navy); margin: 10px 0 12px; font-weight: 800; }
.section-head p { color: var(--c-muted); }
.section-more { text-align: center; margin-top: 40px; }

/* ---------- 卡片：服务 ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.svc-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 30px 24px; transition: all .25s; position: relative; overflow: hidden;
}
.svc-card::before { content: ""; position: absolute; left: 0; top: 0; right: 0; height: 4px;
  background: var(--grad); opacity: 0; transition: .25s; }
.svc-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.svc-card:hover::before { opacity: 1; }
.svc-ico { width: 72px; height: 72px; border-radius: 18px; background: var(--grad-soft);
  display: grid; place-items: center; margin-bottom: 18px; }
.svc-ico svg { width: 52px; height: 52px; display: block; }
.svc-card h3 { font-size: 18px; color: var(--c-navy); margin-bottom: 8px; }
.svc-card p { color: var(--c-muted); font-size: 14px; }

/* ---------- 卡片：产品 ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.prod-card { background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--c-line);
  overflow: hidden; transition: all .25s; display: flex; flex-direction: column; }
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.ph { position: relative; aspect-ratio: 16/9.5; background: var(--grad-soft); overflow: hidden; }
.ph img { width: 100%; height: 100%; object-fit: cover; }
.ph .ph-badge { position: absolute; left: 14px; top: 14px; z-index: 2;
  background: rgba(12,51,70,.78); color: #fff; font-size: 12px; padding: 3px 11px; border-radius: 999px;
  backdrop-filter: blur(4px); }
.ph-ph { background:
  radial-gradient(120px 90px at 88% 12%, rgba(255,255,255,.5), transparent 70%),
  linear-gradient(135deg, var(--g1), var(--g2)); }
.ph-ph::after {
  content: ""; position: absolute; right: -16px; bottom: -26px; width: 150px; height: 150px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='rgba(255,255,255,0.5)'%3E%3Cpath d='M12 2.69l5.66 5.66a8 8 0 1 1-11.31 0z'/%3E%3C/svg%3E");
  background-size: contain; opacity: .5;
}
.g1 { --g1: #0f9f8b; --g2: #14b8a6; } .g2 { --g1: #0e86b5; --g2: #2aa7d8; }
.g3 { --g1: #0f766e; --g2: #0e9f8a; } .g4 { --g1: #2563a5; --g2: #0e9f8a; }
.g5 { --g1: #1283b0; --g2: #41b8a0; } .g6 { --g1: #0a7c6d; --g2: #1586c3; }
.ph .ph-tag2 { position: absolute; right: 12px; bottom: 10px; color: rgba(255,255,255,.9);
  font-size: 11px; letter-spacing: 2px; background: rgba(12,51,70,.55); padding: 4px 10px;
  border-radius: 999px; backdrop-filter: blur(2px); }
.prod-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.prod-body h3 { font-size: 17.5px; color: var(--c-navy); line-height: 1.4; }
.prod-body h3 a:hover { color: var(--c-primary); }
.prod-body .prod-sum { color: var(--c-muted); font-size: 13.5px; margin-top: 8px; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.prod-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 14px;
  padding-top: 14px; border-top: 1px dashed var(--c-line); }
.prod-meta .cat { color: var(--c-primary-d); background: var(--c-soft); padding: 3px 10px;
  border-radius: 6px; font-size: 12.5px; font-weight: 600; }
.more-link { display: inline-flex; align-items: center; gap: 6px; color: var(--c-primary);
  font-size: 13.5px; font-weight: 600; }
.more-link svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 2.2;
  stroke-linecap: round; stroke-linejoin: round; transition: transform .2s; }
.more-link:hover svg { transform: translateX(4px); }

/* ---------- 案例/新闻卡片 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  overflow: hidden; transition: all .25s; display: flex; flex-direction: column; }
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.case-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.case-body .case-cat { font-size: 12.5px; color: var(--c-primary-d); font-weight: 700; letter-spacing: 1px; }
.case-body h3 { font-size: 16.5px; color: var(--c-navy); margin: 6px 0 8px; line-height: 1.45; }
.case-body h3 a:hover { color: var(--c-primary); }
.case-body .case-intro { color: var(--c-muted); font-size: 13.5px; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.case-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.case-tags span { font-size: 12px; color: var(--c-muted); background: var(--c-soft);
  padding: 3px 9px; border-radius: 6px; display: inline-flex; gap: 4px; align-items: center; }
.case-tags svg { width: 12px; height: 12px; stroke: var(--c-primary); fill: none; stroke-width: 2; stroke-linecap: round; }

.news-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 24px;
  transition: all .25s; display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.news-card .nc-top { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.nc-cat { font-size: 12px; font-weight: 700; color: var(--c-accent); letter-spacing: 1px; }
.nc-date { font-size: 12.5px; color: var(--c-muted); }
.news-card h3 { font-size: 16.5px; color: var(--c-navy); margin: 12px 0 8px; line-height: 1.5; flex: 1; }
.news-card h3 a:hover { color: var(--c-primary); }
.news-card .nc-sum { color: var(--c-muted); font-size: 13.5px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 14px; }

/* ---------- 双栏介绍（首页关于 / 关于页） ---------- */
.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.split-visual { position: relative; }
.split-visual .ph { border-radius: var(--radius-lg); aspect-ratio: 4/3.2; }
.float-card {
  position: absolute; left: -26px; bottom: -22px; background: #fff; border-radius: 14px;
  box-shadow: var(--shadow-lg); padding: 14px 20px; display: flex; align-items: center; gap: 12px;
  border: 1px solid var(--c-line);
}
.float-card .fc-ico { width: 40px; height: 40px; border-radius: 10px; background: var(--grad-soft);
  display: grid; place-items: center; }
.float-card .fc-ico svg { width: 20px; height: 20px; stroke: var(--c-primary); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.float-card b { display: block; font-size: 16px; color: var(--c-navy); line-height: 1.3; }
.float-card span { font-size: 12px; color: var(--c-muted); }
.split-body .kicker { margin-bottom: 4px; }
.split-body h2 { font-size: clamp(23px, 2.6vw, 32px); color: var(--c-navy); font-weight: 800; margin: 10px 0 14px; }
.split-body p { color: var(--c-muted); margin-bottom: 12px; }
.pts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 22px; margin: 18px 0 8px; }
.pts li { display: flex; gap: 8px; align-items: flex-start; color: var(--c-ink); font-size: 14.5px; }
.pts svg { width: 16px; height: 16px; flex: none; margin-top: 5px; stroke: var(--c-primary);
  fill: none; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- 数据条带 ---------- */
.band { background: var(--grad); color: #fff; border-radius: var(--radius-lg);
  padding: 34px 40px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  box-shadow: 0 18px 40px rgba(14,159,138,.28); }
.band .bn { text-align: center; position: relative; }
.band .bn + .bn::before { content: ""; position: absolute; left: 0; top: 12%; height: 76%; width: 1px;
  background: rgba(255,255,255,.25); }
.band b { display: block; font-size: clamp(24px, 2.6vw, 34px); font-weight: 800; }
.band span { font-size: 13.5px; opacity: .92; }

/* ---------- 流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: st; }
.step { position: relative; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 26px 22px 22px; }
.step .st-num { width: 40px; height: 40px; border-radius: 50%; background: var(--c-navy); color: #fff;
  display: grid; place-items: center; font-weight: 800; font-size: 17px; margin-bottom: 14px;
  background: var(--grad); }
.step h3 { font-size: 16.5px; color: var(--c-navy); margin-bottom: 6px; }
.step p { font-size: 13.5px; color: var(--c-muted); }
.step::after { content: ""; position: absolute; top: 44px; right: -16px; width: 12px; height: 2px; }
.step::after { background: var(--c-primary); opacity: .4; }
.steps .step:last-child::after { display: none; }
.steps .step:nth-child(3n)::after { display: none; }

/* ---------- CTA 条 ---------- */
.cta-strip { position: relative; overflow: hidden; color: #fff; border-radius: var(--radius-lg);
  background: radial-gradient(560px 300px at 90% 10%, rgba(21,134,195,.5), transparent 60%), linear-gradient(120deg, #0c3346, #0e7d80);
  padding: 46px 48px; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-strip::before { content: ""; position: absolute; right: -40px; bottom: -60px; width: 200px; height: 200px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='rgba(255,255,255,0.12)'%3E%3Cpath d='M12 2.69l5.66 5.66a8 8 0 1 1-11.31 0z'/%3E%3C/svg%3E");
  background-size: contain; }
.cta-strip h3 { font-size: clamp(20px, 2.4vw, 27px); font-weight: 800; }
.cta-strip p { color: #cde6ee; margin-top: 6px; }
.cta-strip .btn { position: relative; z-index: 1; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--c-navy); color: #b9d0da; margin-top: 0; }
.footer-main { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 40px; padding: 56px 0 40px; }
.footer-brand .brand-name { color: #fff; }
.footer-brand p { font-size: 13.5px; margin-top: 14px; max-width: 300px; }
.footer-h { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul a { font-size: 14px; transition: color .2s; }
.site-footer ul a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 10px; font-size: 14px; align-items: flex-start; }
.footer-contact svg { width: 16px; height: 16px; flex: none; margin-top: 4px; stroke: #6fe0c8; fill: none;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 18px 0;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; }
.footer-bottom a { color: #6fe0c8; }

/* ===== 企业优势（借鉴参考站版式） ===== */
.adv-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px; }
.adv-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 26px 24px;
  position: relative; overflow: hidden; transition: transform .25s, box-shadow .25s, border-color .25s; }
.adv-card::after { content: ""; position: absolute; right: -34px; top: -34px; width: 96px; height: 96px;
  background: var(--grad-soft); border-radius: 50%; opacity: .8; }
.adv-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.adv-card .num { position: relative; z-index: 1; display: inline-grid; place-items: center; width: 36px; height: 36px;
  border-radius: 10px; background: var(--grad); color: #fff; font-size: 14px; font-weight: 800; letter-spacing: .5px;
  box-shadow: 0 4px 12px rgba(14,159,138,.3); }
.adv-card h3 { position: relative; z-index: 1; font-size: 16.5px; color: var(--c-navy); margin: 14px 0 8px; letter-spacing: .5px; }
.adv-card p { position: relative; z-index: 1; font-size: 13.5px; color: var(--c-muted); line-height: 1.85; }
@media (max-width: 1024px) { .adv-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 600px) { .adv-grid { grid-template-columns: 1fr; gap: 16px; } .adv-card { padding: 22px 20px; } }

/* ===== 服务与应用领域 ===== */
.app-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 14px; max-width: 980px; margin: 0 auto; }
.app-chip { display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid var(--c-line);
  border-radius: 999px; padding: 10px 18px; font-size: 14px; color: var(--c-ink); transition: all .2s; }
.app-chip svg { width: 15px; height: 15px; fill: var(--c-primary); flex: none; }
.app-chip:hover { color: var(--c-primary); border-color: var(--c-primary); background: var(--c-soft); transform: translateY(-2px); }
@media (max-width: 600px) { .app-grid { gap: 10px; max-width: 100%; } .app-chip { padding: 8px 14px; font-size: 13px; } }

/* ===== 合作与口碑背书 ===== */
.quote-band { position: relative; background:
  radial-gradient(700px 320px at 90% -20%, rgba(21,134,195,.35), transparent 60%),
  radial-gradient(520px 260px at 5% 120%, rgba(14,159,138,.32), transparent 55%),
  var(--c-navy);
  border-radius: var(--radius-lg); padding: clamp(30px, 4vw, 52px) clamp(24px, 5vw, 64px); text-align: center;
  overflow: hidden; }
.quote-band .q-mark { width: clamp(30px, 3.4vw, 42px); height: auto; fill: rgba(111,224,200,.55); margin-bottom: 10px; }
.quote-band p { position: relative; max-width: 860px; margin: 0 auto; font-size: clamp(14.5px, 1.6vw, 17.5px);
  line-height: 2.1; color: #d9ecf4; letter-spacing: .5px; }
@media (max-width: 600px) { .quote-band p { text-align: left; line-height: 1.95; } }

/* ---------- 详情页 ---------- */
.detail-wrap { max-width: 920px; margin: 0 auto; }
.article { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 46px); }
.article h1 { font-size: clamp(22px, 2.6vw, 30px); color: var(--c-navy); line-height: 1.4; }
.article .meta-line { display: flex; flex-wrap: wrap; gap: 18px; color: var(--c-muted); font-size: 13.5px;
  padding: 16px 0 20px; margin: 18px 0 0; border-bottom: 1px solid var(--c-line); }
.article .meta-line span { display: inline-flex; align-items: center; gap: 6px; }
.article .meta-line svg { width: 15px; height: 15px; stroke: var(--c-primary); fill: none; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round; }
.article p { margin: 14px 0; color: var(--c-ink); }
.article .lead { color: var(--c-muted); font-size: 16px; }
.article h2, .article h3 { color: var(--c-navy); margin-top: 26px; }
.prod-top { display: grid; grid-template-columns: 1fr 1.2fr; gap: 36px; margin-bottom: 34px; }
.prod-top .ph { border-radius: var(--radius-lg); aspect-ratio: 4/3; }
.pd-info h1 { font-size: clamp(21px, 2.4vw, 28px); color: var(--c-navy); line-height: 1.4; }
.pd-info .cat-pill { display: inline-block; margin-bottom: 14px; color: var(--c-primary-d);
  background: var(--c-soft); padding: 4px 12px; border-radius: 999px; font-size: 13px; font-weight: 700; }
.pd-info p.sum { color: var(--c-muted); margin: 12px 0 16px; }
.pd-quote { background: var(--c-soft); border-left: 4px solid var(--c-primary); padding: 14px 18px;
  border-radius: 0 10px 10px 0; font-size: 14.5px; color: var(--c-ink); }
.spec-tbl { width: 100%; border-collapse: collapse; margin: 16px 0; }
.spec-tbl th, .spec-tbl td { border: 1px solid var(--c-line); padding: 11px 16px; text-align: left; font-size: 14.5px; }
.spec-tbl th { background: var(--c-soft2); color: var(--c-navy); width: 30%; font-weight: 600; }
.feat-list li { display: flex; gap: 10px; padding: 7px 0; }
.feat-list svg { width: 17px; height: 17px; flex: none; margin-top: 5px; stroke: var(--c-primary);
  fill: none; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.pd-contact { margin-top: 26px; background: var(--c-soft); border: 1px dashed var(--c-primary);
  border-radius: var(--radius); padding: 18px 22px; display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.pd-contact .pc-l { font-size: 14.5px; color: var(--c-ink); }
.pd-contact .pc-l b { color: var(--c-navy); }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 30px; align-items: start; }
.info-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.info-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 24px; }
.info-card .ic-ico { width: 46px; height: 46px; border-radius: 12px; background: var(--grad-soft);
  display: grid; place-items: center; margin-bottom: 14px; }
.info-card .ic-ico svg { width: 22px; height: 22px; stroke: var(--c-primary); fill: none; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round; }
.info-card h3 { font-size: 15.5px; color: var(--c-navy); margin-bottom: 4px; }
.info-card p, .info-card a { font-size: 14px; color: var(--c-muted); word-break: break-all; }
.info-card a:hover { color: var(--c-primary); }
.form-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 30px; }
.form-card h3 { font-size: 20px; color: var(--c-navy); margin-bottom: 4px; }
.form-card .fc-sub { color: var(--c-muted); font-size: 13.5px; margin-bottom: 22px; }
.f-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; color: var(--c-navy); font-weight: 600; }
.field label i { color: #e05252; font-style: normal; }
.field input, .field select, .field textarea {
  border: 1px solid var(--c-line); border-radius: 10px; padding: 11px 14px; font-size: 14.5px;
  font-family: inherit; color: var(--c-ink); background: #fff; transition: border .2s, box-shadow .2s; outline: none; width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(14,159,138,.15);
}
.field textarea { resize: vertical; min-height: 120px; }
.form-tip { font-size: 12.5px; color: var(--c-muted); grid-column: 1/-1; }
.form-actions { display: flex; align-items: center; gap: 16px; margin-top: 6px; }
.form-actions .msg { font-size: 14px; }

/* 筛选 */
.filter-bar { display: flex; align-items: center; justify-content: space-between; gap: 18px;
  flex-wrap: wrap; background: #fff; border: 1px solid var(--c-line); border-radius: 12px;
  padding: 12px 14px; margin-bottom: 28px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { padding: 7px 16px; border-radius: 999px; font-size: 14px; color: var(--c-muted);
  background: var(--c-soft); border: 1px solid transparent; transition: .2s; font-weight: 500; }
.chip:hover { color: var(--c-primary); }
.chip.on { background: var(--grad); color: #fff; box-shadow: 0 4px 12px rgba(14,159,138,.3); }
.search-box { display: flex; align-items: center; gap: 8px; border: 1px solid var(--c-line);
  border-radius: 999px; padding: 0 6px 0 14px; background: #fff; }
.search-box input { border: none; outline: none; padding: 9px 4px; font-size: 14px; width: 200px; font-family: inherit; }
.search-box button { border: none; background: var(--grad); color: #fff; width: 34px; height: 34px;
  border-radius: 50%; display: grid; place-items: center; }
.search-box svg { width: 16px; height: 16px; stroke: #fff; fill: none; stroke-width: 2.4;
  stroke-linecap: round; }

/* 分页提示/空态 */
.empty-tip { text-align: center; color: var(--c-muted); padding: 60px 0; }

/* toast */
.toast { position: fixed; top: 22px; left: 50%; transform: translateX(-50%) translateY(-140%);
  background: var(--c-navy); color: #fff; padding: 12px 26px; border-radius: 10px; font-size: 14.5px;
  z-index: 999; box-shadow: var(--shadow-lg); transition: transform .35s cubic-bezier(.2,.9,.3,1.2); }
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.ok { background: #0b7f6e; }
.toast.err { background: #c0392b; }

/* 页脚在内容少时置底 */
.page-body { min-height: calc(100vh - 600px); }
@media (min-width: 1400px) { .page-body { min-height: calc(100vh - 640px); } }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .svc-grid, .prod-grid, .case-grid, .news-list, .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .split, .prod-top, .contact-grid { grid-template-columns: 1fr; }
  .split-visual .float-card { left: 10px; }
}
@media (max-width: 860px) {
  .topbar .tb-right span:first-child { display: none; }
  .main-nav { position: fixed; inset: 0 0 0 auto; width: min(78vw, 320px); background: #fff;
    box-shadow: -20px 0 60px rgba(0,0,0,.16); transform: translateX(100%); transition: transform .3s;
    padding: 90px 26px 30px; z-index: 90; overflow-y: auto; visibility: hidden; }
  body.nav-open .main-nav { transform: translateX(0); visibility: visible; }
  .main-nav ul { flex-direction: column; gap: 6px; }
  .main-nav a { font-size: 17px; padding: 12px 14px; }
  .main-nav a.active::after { display: none; }
  .main-nav a.active { background: var(--c-soft); }
  .nav-toggle { display: block; }
  .header-cta .btn span.t { display: none; }
  body.nav-open::after { content: ""; position: fixed; inset: 0; background: rgba(12,51,70,.4); z-index: 80; }
}
@media (max-width: 600px) {
  .svc-grid, .prod-grid, .case-grid, .news-list, .steps, .band, .info-cards, .f-grid { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 26px; }
  .hero .container { padding-top: 56px; padding-bottom: 70px; }
  .section { padding: 52px 0; }
  .band { padding: 26px 20px; }
  .cta-strip { padding: 34px 26px; }
  .pts { grid-template-columns: 1fr; }
  .hero-stats .hs { padding: 10px 0; border: none !important; }
  .search-box input { width: 130px; }
}

/* ========== 产品中心：左侧分类 + 卡片墙（截图版式） ========== */
.crumb-bar { background: #fff; border-bottom: 1px solid var(--c-line); padding: 12px 0; }
.crumb-bar .crumb { margin-top: 0; color: var(--c-muted); }
.crumb-bar .crumb a { color: var(--c-primary); font-weight: 500; }
.crumb-bar .crumb svg { stroke: currentColor; }

.sec-head.center { text-align: center; margin-bottom: 30px; }
.sec-head.center h2 { font-size: clamp(24px, 2.6vw, 32px); color: var(--c-navy); letter-spacing: 1px; }
.sec-head.center p { color: var(--c-muted); margin-top: 10px; font-size: 14.5px; }

.shop-layout { display: grid; grid-template-columns: 232px minmax(0, 1fr); gap: 22px; align-items: start; }

.cat-menu { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm, 0 2px 10px rgba(23,42,58,.05)); }
.cat-menu .cm-title { padding: 14px 18px; font-weight: 700; font-size: 15.5px; background: var(--grad); color: #fff; letter-spacing: 2px; }
.cat-menu .cm-item { display: flex; justify-content: space-between; align-items: center; gap: 8px; width: 100%; text-align: left; padding: 12px 18px; font-size: 14px; color: #3b4a56; border: none; border-bottom: 1px solid var(--c-line); background: #fff; cursor: pointer; font-family: inherit; transition: background .2s, color .2s; }
.cat-menu .cm-item:last-child { border-bottom: none; }
.cat-menu .cm-item:hover { color: var(--c-primary); background: var(--c-soft); }
.cat-menu .cm-item.on { background: var(--grad); color: #fff; font-weight: 600; }
.cat-menu .cm-item .cnt { font-size: 12px; color: var(--c-muted); }
.cat-menu .cm-item.on .cnt { color: rgba(255,255,255,.85); }

.shop-tools { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 16px; }
.result-tip { font-size: 13.5px; color: var(--c-muted); }

.wall-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.wall-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--c-line); border-radius: 10px; overflow: hidden; transition: transform .25s, box-shadow .25s, border-color .25s; }
.wall-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.wall-card .ph { aspect-ratio: 4/3; border-radius: 0; }
.wall-card .ph .ph-badge { font-size: 11px; }
.wall-body { padding: 14px 14px 16px; text-align: center; flex: 1; display: flex; flex-direction: column; }
.wall-body h3 { font-size: 15.5px; color: var(--c-navy); line-height: 1.45; }
.wall-card:hover .wall-body h3 { color: var(--c-primary); }
.wall-body p { margin-top: 8px; font-size: 12.5px; color: var(--c-muted); text-align: left; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

@media (max-width: 1200px) {
  .wall-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 992px) {
  .shop-layout { grid-template-columns: 1fr; }
  .cat-menu { display: flex; flex-wrap: wrap; }
  .cat-menu .cm-title { width: 100%; }
  .cat-menu .cm-item { width: auto; border-bottom: none; border-right: 1px solid var(--c-line); padding: 10px 14px; }
  .wall-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .wall-grid { grid-template-columns: 1fr; }
}

/* ========== 移动端精细适配（追加） ========== */
body.nav-open { overflow: hidden; }
.tbl-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.tbl-scroll .spec-tbl { min-width: 560px; }
.spec-tbl th, .spec-tbl td { word-break: break-word; }

@media (max-width: 900px) {
  .page-hero .container { padding: 40px 22px 44px; }
  .page-hero p { font-size: 14.5px; }
  .hero-stats b { font-size: 25px; }
  .hero-stats .hs { padding-right: 22px; }
  .hero-stats .hs + .hs { padding-left: 22px; }
  .float-card { left: 8px; bottom: -16px; padding: 10px 14px; }
  .brand-sub { display: none; }
  .header-cta .btn { padding: 9px 14px; }
}
@media (max-width: 600px) {
  .topbar { font-size: 12px; }
  .topbar .tb-left { display: none; }
  .topbar .container { justify-content: flex-end; height: 32px; }
  .topbar .tb-right { gap: 14px; }
  .site-header .container { height: 64px; gap: 8px; }
  .brand-mark { width: 38px; height: 38px; border-radius: 10px; }
  .brand-mark svg { width: 21px; height: 21px; }
  .brand-name { font-size: 17px; }
  .brand { gap: 9px; }
  .header-cta .btn { width: 38px; height: 38px; padding: 0; border-radius: 9px; }
  .header-cta .btn svg { width: 17px; height: 17px; }
  .nav-toggle { width: 38px; height: 38px; }
  .main-nav { width: 82vw; }
  .hero h1 { font-size: clamp(25px, 7.6vw, 34px); }
  .hero-actions .btn { padding: 12px 18px; font-size: 14.5px; flex: 1; min-width: 0; }
  .hero-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 8px; margin-top: 38px; padding-top: 22px; }
  .hero-stats .hs { padding: 0; }
  .hero-stats .hs + .hs { padding: 0; border: none; }
  .hero-stats b { font-size: 23px; }
  .cta-strip { padding: 28px 20px; flex-direction: column; align-items: stretch; text-align: center; }
  .cta-strip .btn { flex: 1; }
  .float-card { position: static; margin-top: 16px; width: max-content; max-width: 100%; }
  .split-visual .float-card { left: 0; }
  .section-more { text-align: center; }
  .sec-head.center p { font-size: 13.5px; }
  .article { padding: 20px 16px; }
  .article .meta-line { gap: 10px; }
  .contact .info-cards { grid-template-columns: 1fr; }
  .form-card { padding: 20px 16px; }
  .footer-main { padding: 36px 0 24px; gap: 30px; text-align: center; }
  .footer-brand .brand { justify-content: center; }
  .footer-brand p { margin: 14px auto 0; }
  .footer-main .footer-h { position: relative; display: inline-block; padding-bottom: 10px; margin-bottom: 12px; }
  .footer-main .footer-h::after { content: ""; position: absolute; left: 50%; transform: translateX(-50%);
    bottom: 0; width: 26px; height: 3px; border-radius: 2px; background: var(--grad); }
  .footer-main > div:nth-child(2) ul,
  .footer-main > div:nth-child(3) ul { display: grid; grid-template-columns: 1fr 1fr; gap: 7px 10px; }
  .site-footer ul li { margin-bottom: 0; }
  .footer-contact li { justify-content: center; }
  .footer-contact li span { text-align: left; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; gap: 4px; line-height: 1.7; padding: 16px 0; }
  .site-footer { overflow-wrap: break-word; }
  .shop-tools { flex-wrap: wrap; }
  .shop-tools .result-tip { order: 2; width: 100%; }
  .shop-tools .search-box { width: 100%; }
  .shop-tools .search-box input { flex: 1; width: auto; }
  .crumb-bar { padding: 10px 0; }
  .pd-contact { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 380px) {
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .brand-name { font-size: 15.5px; }
  .container { padding: 0 16px; }
}

/* ===== 案例详情：工程现场实拍画廊 ===== */
.case-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 6px 0 8px; }
.case-gallery figure { margin: 0; border-radius: var(--radius); overflow: hidden; background: var(--c-soft); }
.case-gallery img { width: 100%; height: 200px; object-fit: cover; display: block; transition: transform .4s ease; }
.case-gallery figure:hover img { transform: scale(1.05); }
@media (max-width: 768px) { .case-gallery { grid-template-columns: repeat(2, 1fr); } .case-gallery img { height: 150px; } }
@media (max-width: 480px) { .case-gallery { grid-template-columns: 1fr; } .case-gallery img { height: 200px; } }

/* ===== 文章正文配图（新闻/案例详情内嵌图） ===== */
.art-img { margin: 14px 0; border-radius: var(--radius); overflow: hidden; background: var(--c-soft); }
.art-img img { display: block; width: 100%; height: auto; max-height: 480px; object-fit: cover; }

/* ===== 首页服务卡：手机端两列紧凑布局 ===== */
@media (max-width: 600px) {
  .svc-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 12px; }
  .svc-card { padding: 18px 14px; }
  .svc-ico { width: 56px; height: 56px; border-radius: 14px; margin-bottom: 12px; }
  .svc-ico svg { width: 42px; height: 42px; }
  .svc-card h3 { font-size: 15.5px; margin-bottom: 5px; }
  .svc-card p { font-size: 12.5px; line-height: 1.55; }
}
@media (max-width: 600px) {
  .hero-dots { right: 16px; bottom: 14px; gap: 7px; }
  .hero-dots button { width: 20px; }
  .hero-dots button.on { width: 30px; }
}

/* ===== 网站LOGO图片（后台可更换） ===== */
.brand-mark.brand-img { background: #fff; box-shadow: 0 2px 10px rgba(11,59,82,.14); }
.brand-mark.brand-img img { width: 100%; height: 100%; object-fit: contain; border-radius: inherit; display: block; }
.footer-brand .brand-mark.brand-img { box-shadow: none; }
/* ===== 横版LOGO（含文字，替换默认文字品牌区） ===== */
.brand-full { gap: 0; }
.brand-full .brand-logo { height: 56px; width: auto; max-width: 250px; object-fit: contain; display: block; }
.footer-brand .brand-logo-pill { display: inline-flex; align-items: center; background: #fff; border-radius: 10px; padding: 7px 13px; }
.footer-brand .brand-logo { height: 40px; max-width: 200px; }
@media (max-width: 600px) {
  .brand-full .brand-logo { height: 42px; max-width: 185px; }
  .footer-brand .brand-logo-pill { padding: 5px 10px; border-radius: 8px; }
  .footer-brand .brand-logo { height: 30px; max-width: 160px; }
}