/* 宏迪沥青官网 — 蓝白企业视觉，深蓝与橙色重点 */
:root {
  --blue: #164d7c;
  --blue-2: #26679b;
  --navy: #102f4b;
  --navy-2: #0b2338;
  --ice: #f3f6f8;
  --orange: #f5a04b;
  --orange-2: #ed8d31;
  --text: #23384a;
  --muted: #627487;
  --line: #dfe7ed;
  --radius: 6px;
  --gutter: clamp(24px, 5vw, 80px);
  --maxw: 1280px;
  --header-h: 88px;
  font-size: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 8px); }
body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
svg { width: 1em; height: 1em; flex: none; }
h1, h2, h3, p, ul { margin: 0; }
ul { padding: 0; list-style: none; }

.container { width: 100%; max-width: calc(var(--maxw) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  height: 52px; padding: 0 1.6em; border-radius: var(--radius); border: 0;
  font-weight: 700; font-size: 1.05rem; cursor: pointer; white-space: nowrap;
  transition: background .2s, transform .2s, box-shadow .2s;
}
.btn svg { font-size: 1.15em; }
.btn .arr { font-size: 1em; transition: transform .2s; }
.btn:hover .arr { transform: translateX(3px); }
.btn--primary { background: var(--orange); color: var(--navy-2); }
.btn--primary:hover { background: var(--orange-2); box-shadow: 0 6px 16px rgba(15, 36, 55, .16); }
.btn--ghost { background: #fff; color: var(--blue); }
.btn--ghost:hover { background: var(--ice); }

/* ---------- 导航 ---------- */
.header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  background: rgba(255, 255, 255, .97); border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}
.header.is-scrolled { box-shadow: 0 4px 18px rgba(18, 59, 96, .08); }
.header__inner { height: 100%; display: flex; align-items: center; gap: 22px; }
.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand img { width: 46px; height: auto; }
.brand__text { display: flex; flex-direction: column; line-height: 1.2; }
.brand__text strong { color: var(--blue); font-size: 1.16rem; letter-spacing: .02em; font-weight: 800; }
.brand__text small { color: var(--muted); font-size: .62rem; letter-spacing: .14em; margin-top: 3px; }

.nav { display: flex; gap: clamp(12px, 1.35vw, 22px); margin: 0 0 0 auto; }
.nav a {
  position: relative; font-weight: 600; font-size: .9rem; color: #26384b;
  padding: 32px 0; white-space: nowrap; transition: color .2s;
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 20px; height: 2px;
  background: var(--blue); transform: scaleX(0); transition: transform .25s;
}
.nav a:hover, .nav a.is-active { color: var(--blue); }
.nav a.is-active::after { transform: scaleX(1); }

.header__tel { display: flex; align-items: center; gap: 10px; flex: none; }
.header__tel-icon {
  width: 38px; height: 38px; border-radius: 50%; background: var(--ice); color: var(--blue);
  display: grid; place-items: center; font-size: 1.2rem;
}
.header__tel small { display: block; color: var(--muted); font-size: .74rem; line-height: 1.2; }
.header__tel strong { display: block; color: var(--blue); font-size: 1.15rem; line-height: 1.3; letter-spacing: .01em; }

.nav-toggle { display: none; }

/* ---------- 首屏 ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  min-height: 620px; display: flex; align-items: center;
  background: var(--navy);
}
.hero__bg {
  position: absolute; inset: 0 0 0 30%;
  background: url("../img/hero-paving.jpg") 42% 54% / cover no-repeat;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(90deg, #102f4b 0%, #102f4b 25%, rgba(16, 47, 75, .9) 39%, rgba(16, 47, 75, .3) 65%, rgba(16, 47, 75, .1) 100%),
    linear-gradient(0deg, rgba(8, 26, 43, .45), transparent 50%);
}
.hero__inner { position: relative; z-index: 2; padding-top: 68px; padding-bottom: 108px; }
.hero__brand { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin-bottom: 26px; color: #fff; font-size: 1.75rem; font-weight: 700; letter-spacing: .12em; }
.hero__brand span { color: #c2d2df; font: 500 .72rem/1.5 Arial, sans-serif; letter-spacing: .18em; }
.hero__eyebrow { font-size: .88rem; color: #dbe7f0; letter-spacing: .18em; display: flex; align-items: center; gap: 14px; }
.hero__eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--orange); }
.hero__title {
  margin-top: 25px; font-size: clamp(2.4rem, 4.2vw, 3.75rem); font-weight: 800; line-height: 1.3;
  letter-spacing: .035em; max-width: 11em;
}
.hero__title span { display: block; white-space: nowrap; }
.hero__title span + span { color: #dce7ef; }
.hero__lead { margin-top: 22px; font-size: 1.12rem; color: #dbe7f0; letter-spacing: .1em; }
.hero__actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.hero__actions .btn { min-width: 190px; height: 52px; }
.hero__tags { display: flex; flex-wrap: wrap; margin-top: 32px; }
.hero__tags li {
  display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 1rem;
  padding: 0 24px; border-left: 1px solid rgba(255, 255, 255, .35);
}
.hero__tags li:first-child { padding-left: 0; border-left: 0; }
.hero__tags svg { font-size: 1.7rem; }
.hero__slogan {
  position: absolute; z-index: 2; right: var(--gutter); bottom: 88px;
  color: #fff; font-size: .86rem; line-height: 1.8; letter-spacing: .16em; text-align: right;
  padding-right: 16px; border-right: 2px solid var(--orange);
}

/* ---------- 通用标题 ---------- */
.section { padding: 72px 0; }
.sec-head { display: flex; align-items: center; gap: 24px; margin-bottom: 32px; flex-wrap: wrap; }
.sec-title {
  position: relative; color: var(--navy); font-size: 2rem; font-weight: 800;
  line-height: 1.35; padding-bottom: 16px; letter-spacing: .04em;
}
.sec-title::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 36px; height: 3px; background: var(--orange);
}
.sec-sub { color: var(--muted); font-size: .94rem; padding-bottom: 12px; }
.section-label { color: var(--blue-2); font-size: .72rem; font-weight: 600; letter-spacing: .22em; margin-bottom: 12px; }
.sec-more {
  margin-left: auto; display: inline-flex; align-items: center; gap: 8px; padding: 0 0 10px;
  color: var(--blue-2); font-size: .95rem; background: none; border: 0; cursor: pointer;
}
.sec-more svg { transition: transform .2s; }
.sec-more:hover svg { transform: translateX(3px); }
.sec-head--light .sec-title, .sec-head--light .sec-sub { color: #fff; }

/* ---------- 业务范围 ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.svc {
  display: grid; grid-template-columns: 1fr; min-height: 0;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff;
  transition: box-shadow .25s, transform .25s, border-color .25s;
}
.svc:hover { box-shadow: 0 10px 24px rgba(18, 77, 136, .12); transform: translateY(-2px); border-color: #b9cde2; }
.svc img { width: 100%; height: auto; aspect-ratio: 1.4; object-fit: cover; transition: transform .4s ease; }
.svc:hover img { transform: scale(1.025); }
.svc__body { position: relative; padding: 25px 20px 35px; min-width: 0; }
.svc h3 { display: flex; align-items: center; gap: 8px; color: var(--blue); font-size: 1.1rem; font-weight: 700; white-space: normal; }
.svc h3 svg { font-size: 1.5rem; color: var(--blue-2); }
.svc p { margin-top: 6px; color: var(--muted); font-size: .88rem; line-height: 1.7; white-space: normal; }
.svc__arr { position: absolute; right: 20px; bottom: 15px; color: var(--blue-2); font-size: .95rem; }

/* ---------- 工厂 + 案例 ---------- */
.band--ice { background: var(--ice); }
#cases { padding: 72px 0; }
.band__grid { display: grid; grid-template-columns: 1fr; gap: 64px; }
.panel { min-width: 0; background: #fff; padding: 0; }

.zoom { display: block; width: 100%; padding: 0; border: 0; background: #dfe8f0; overflow: hidden; cursor: zoom-in; }
.zoom img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.zoom:hover img { transform: scale(1.05); }

.factory { display: grid; grid-template-columns: 1.7fr 1fr; grid-template-rows: 1fr 1fr; gap: 16px; height: 430px; }
.factory__main { grid-row: span 2; }
.factory .zoom { border-radius: var(--radius); }
.icon-strip {
  display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 8px;
  border: 1px solid var(--line); border-radius: var(--radius);
}
.icon-strip li {
  display: flex; align-items: center; justify-content: center; gap: 10px; padding: 11px 6px;
  font-weight: 600; font-size: .92rem; color: #2a3e52;
}
.icon-strip li + li { border-left: 1px solid var(--line); }
.icon-strip svg { color: var(--blue-2); font-size: 1.5rem; }

.case-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.case { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; display: flex; flex-direction: column; }
.case .zoom { aspect-ratio: 1.55; }
.case__body { padding: 22px 24px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.case h3 { color: var(--navy); font-size: 1.14rem; font-weight: 700; }
.case__body .chips { margin-top: 0; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.chips span { background: #e6f0fa; color: var(--blue-2); font-size: .8rem; padding: 2px 10px; border-radius: 2px; }
.case__loc { display: flex; align-items: center; gap: 6px; margin-top: 10px; color: var(--muted); font-size: .82rem; }

/* ---------- 关于我们 ---------- */
.about__grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 40px; align-items: start; }
.about__text p + p { margin-top: 12px; }
.about__text p { color: #3b4d60; font-size: .98rem; line-height: 1.9; text-align: justify; }
.about__motto { margin-top: 18px !important; display: inline-block; padding: 8px 18px; background: var(--ice); color: var(--blue) !important; font-weight: 700; letter-spacing: .1em; border-left: 4px solid var(--orange); }
.about__side { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; background: #fbfdff; }
.about__side h3 { font-size: 1.1rem; color: var(--blue); margin-bottom: 8px; }
.project-list li {
  display: flex; justify-content: space-between; gap: 16px; padding: 8px 0;
  border-bottom: 1px dashed var(--line); font-size: .9rem;
}
.project-list li span::before { content: ""; display: inline-block; width: 6px; height: 6px; background: var(--blue-2); margin-right: 10px; vertical-align: middle; }
.project-list em { font-style: normal; color: var(--blue-2); font-size: .8rem; white-space: nowrap; }
.note { margin-top: 10px; color: var(--muted); font-size: .78rem; }

/* ---------- 质量与服务 + 联系 ---------- */
.bottom { display: grid; grid-template-columns: 42fr 58fr; border-top: 1px solid var(--line); }
.bottom__quality {
  position: relative; color: #fff; padding: 30px 32px 32px var(--gutter);
  background: linear-gradient(rgba(18, 59, 96, .9), rgba(18, 59, 96, .92)), url("../img/factory-tower.jpg") center 30% / cover;
}
.quality-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 22px; }
.quality-grid li { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 6px 4px; }
.quality-grid li + li { border-left: 1px solid rgba(255, 255, 255, .25); }
.quality-grid svg { font-size: 2.4rem; margin-bottom: 12px; }
.quality-grid strong { font-size: 1.05rem; }
.quality-grid span { font-size: .9rem; opacity: .85; margin-top: 4px; }

.bottom__contact { padding: 30px var(--gutter) 30px 32px; }
.contact { display: grid; grid-template-columns: 1fr 1.15fr 1fr; gap: 22px; }
.cc { display: flex; flex-direction: column; gap: 18px; min-width: 0; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: #fff; }
.cc__head { display: flex; align-items: center; gap: 8px; margin: 0 0 2px; font-size: 1rem; color: var(--navy); }
.cc__head svg { color: var(--blue-2); font-size: 1.2rem; }
.cc__head svg.wx { color: #1aad19; }
.cc__tel { display: block; color: var(--blue); font-weight: 800; font-size: clamp(1.15rem, 1.7vw, 1.5rem); line-height: 1.4; white-space: nowrap; }
.cc__tel small { display: block; color: var(--muted); font-weight: 400; font-size: .8rem; }
.cc__tel:hover { color: var(--orange-2); }
.cc__note { display: flex; align-items: center; gap: 6px; margin: auto 0 0; font-size: .85rem; color: #3b4d60; }
.cc__note svg { color: var(--blue-2); }
.cc__wx { display: flex; gap: 12px; align-items: center; }
.cc__wx img { width: 108px; height: 108px; flex: none; border: 1px solid var(--line); border-radius: var(--radius); padding: 5px; background: #fff; }
.cc__wx p { margin: 0; font-size: .8rem; color: var(--muted); }
.cc__wx strong { display: block; color: var(--blue); font-size: 1.05rem; margin: 2px 0 8px; white-space: nowrap; }
.cc__btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 42px; padding: 8px 12px; white-space: nowrap;
  border: 1px solid var(--blue-2); border-radius: var(--radius); background: #fff; color: var(--blue); font: inherit; font-size: .88rem; font-weight: 700; cursor: pointer;
  transition: background .2s, color .2s;
}
.cc__btn:hover { background: var(--blue-2); color: #fff; }
.cc__btn.is-done { border-color: #177245; background: #177245; color: #fff; }
.cc__addr { margin: 0; font-size: .92rem; color: #3b4d60; }
.cc__addr em { display: block; font-style: normal; color: var(--muted); font-size: .78rem; margin-top: 2px; }
.cc__maps { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.cc__maps .cc__btn { flex: 1; }
.contact__tip { margin: 14px 0 0; padding: 10px 14px; background: var(--ice); border-radius: var(--radius); font-size: .86rem; color: #3b4d60; display: flex; flex-wrap: wrap; gap: 4px 14px; }
.contact__tip strong { color: var(--navy); }
.contact__tip span { white-space: nowrap; }
.contact__tip p > span::before { content: "·"; margin-right: 6px; color: var(--orange); font-weight: 800; }

/* ---------- 一句话介绍 ---------- */
.intro { background: var(--ice); border-bottom: 1px solid var(--line); }
.intro p { padding: 16px 0; font-size: .95rem; color: #34475b; line-height: 1.85; }
.intro strong { color: var(--blue); }

.factory__note { margin-top: 10px; font-size: .82rem; color: var(--muted); line-height: 1.7; }

/* ---------- 公司信息 ---------- */
.facts__title { margin-top: 26px; font-size: 1.1rem; color: var(--blue); }
.facts { margin: 10px 0 0; border: 1px solid var(--line); border-radius: var(--radius); }
.facts div { display: grid; grid-template-columns: 150px 1fr; }
.facts div + div { border-top: 1px solid var(--line); }
.facts dt { padding: 8px 14px; background: var(--ice); color: #3b4d60; font-size: .88rem; }
.facts dd { margin: 0; padding: 8px 14px; font-size: .9rem; }
.btn--line { margin-top: 14px; height: 42px; font-size: .95rem; color: var(--blue); background: #fff; border: 1px solid var(--blue-2); }
.btn--line:hover { background: var(--ice); }

/* ---------- 常见问题 ---------- */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 24px; align-items: start; }
.faq-list details { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.faq-list summary {
  position: relative; cursor: pointer; list-style: none; padding: 22px 50px 22px 24px;
  font-weight: 700; color: #22364a;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+"; position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  color: var(--blue-2); font-size: 1.3rem; font-weight: 400;
}
.faq-list details[open] summary::after { content: "−"; }
.faq-list details[open] summary { color: var(--blue); }
.faq-list details p { padding: 0 24px 22px; font-size: .94rem; color: #46596c; line-height: 1.8; }

/* ---------- 业绩页 ---------- */
.page-hero { background: linear-gradient(90deg, #0f3d6e, #1f64ad); color: #fff; padding: 34px 0 30px; }
.page-hero h1 { font-size: 2rem; font-weight: 900; letter-spacing: .04em; }
.page-hero p { margin-top: 8px; max-width: 52em; opacity: .92; }
.crumbs { font-size: .85rem; opacity: .85; margin-bottom: 8px; }
.crumbs a:hover { text-decoration: underline; }
.crumbs span { margin: 0 8px; }
.case-grid--wide { grid-template-columns: repeat(4, 1fr); gap: 14px; }
.case-grid--wide img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.case-grid--wide h2 { color: var(--blue); font-size: 1.05rem; font-weight: 800; }
.case__desc { margin-top: 8px; font-size: .85rem; color: #46596c; line-height: 1.7; }
.section .sec-title { margin-bottom: 0; display: inline-block; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.ptable { width: 100%; min-width: 720px; border-collapse: collapse; font-size: .9rem; table-layout: fixed; }
.ptable th:nth-child(1) { width: 56%; }
.ptable th:nth-child(2) { width: 27%; }
.ptable th { background: var(--blue); color: #fff; text-align: left; font-weight: 600; padding: 10px 14px; white-space: nowrap; }
.ptable td { padding: 10px 14px; border-top: 1px solid var(--line); vertical-align: top; }
.ptable td:first-child { font-weight: 600; color: #22364a; }
.ptable td:nth-child(2) { color: #46596c; }
.ptable td:last-child { color: var(--blue-2); }
.ptable tbody tr:hover { background: #f6fafd; }
.cta { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-top: 26px; padding: 20px 24px; background: var(--ice); border-left: 4px solid var(--orange); }
.cta p { font-weight: 700; color: var(--blue); font-size: 1.1rem; margin-right: auto; }
.cta .btn--line { margin-top: 0; height: 48px; }

/* ---------- 顶部信息条 ---------- */
.topbar { background: var(--navy-2); color: rgba(255, 255, 255, .82); font-size: .8rem; }
.topbar__inner { display: flex; justify-content: space-between; align-items: center; height: 32px; }
.topbar__right { display: flex; align-items: center; gap: 6px; }
.topbar a { color: #fff; font-weight: 700; }

/* ---------- 三大优势 ---------- */
.values { position: relative; z-index: 3; margin-top: -48px; }
.values__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.value {
  display: flex; gap: 14px; align-items: flex-start; padding: 18px 20px; background: #fff;
  border-radius: var(--radius); border-top: 3px solid var(--orange); box-shadow: 0 10px 28px rgba(18, 59, 96, .12);
}
.value > svg { font-size: 2.2rem; color: var(--blue-2); margin-top: 2px; }
.value h2 { font-size: 1.1rem; color: var(--blue); font-weight: 800; }
.value p { margin-top: 4px; font-size: .86rem; color: #4f6275; line-height: 1.7; }
.intro { margin-top: 20px; }

/* ---------- 沥青料供应 ---------- */
.mix-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.mix { display: flex; flex-direction: column; position: relative; min-width: 0; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; background-color: var(--navy); background-size: cover; background-position: center; overflow: hidden; }
.mix::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(9,25,39,.25), rgba(9,25,39,.78) 48%, rgba(9,25,39,.94)); }
.mix > * { position: relative; }
.mix--standard { background-image: url('../img/generated/material-standard.jpg'); }
.mix--hot { background-image: url('../img/generated/material-modified.jpg'); }
.mix--color { background-image: url('../img/generated/material-color.jpg'); }
.mix__number { display: block; font: 500 2rem/1.2 Arial, sans-serif; color: #fff; text-shadow: 0 1px 8px #102f4b; margin-bottom: 50px; }
.mix h3 { color: #fff; font-size: 1.3rem; font-weight: 700; }
.mix__codes { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; margin-bottom: 25px; }
.mix__codes li { font-size: .82rem; font-weight: 700; color: #fff; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.22); padding: 4px 10px; border-radius: 2px; }
.mix p { margin-top: auto; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.25); font-size: .88rem; color: #edf3f8; line-height: 1.7; }
.supply-notes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 16px; }
.supply-notes li { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; background: var(--ice); border-radius: var(--radius); }
.supply-notes svg { font-size: 1.6rem; color: var(--orange); margin-top: 2px; }
.supply-notes strong { display: block; color: var(--blue); font-size: 1rem; }
.supply-notes span { display: block; font-size: .82rem; color: #4f6275; line-height: 1.6; margin-top: 2px; }

/* ---------- 应用场景 ---------- */
.scenes { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin-top: 14px; }
.scenes li {
  display: flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 8px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); font-size: .9rem; font-weight: 600; color: #2a3e52;
}
.scenes svg { color: var(--blue-2); font-size: 1.3rem; }

/* ---------- 选择理由 ---------- */
.sec-head--center { flex-direction: column; align-items: center; text-align: center; gap: 6px; }
.sec-head--center .sec-title::after { left: 50%; transform: translateX(-50%); }
.sec-head--center .sec-sub { padding-bottom: 0; }
.reason-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.reason { position: relative; padding: 20px 22px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: box-shadow .25s, border-color .25s; }
.reason:hover { border-color: #b9cde2; box-shadow: 0 10px 24px rgba(18, 77, 136, .1); }
.reason span { position: absolute; right: 18px; top: 12px; font-size: 2rem; font-weight: 900; color: #e6eef6; }
.reason h3 { position: relative; color: var(--blue); font-size: 1.08rem; font-weight: 800; }
.reason p { position: relative; margin-top: 8px; font-size: .88rem; color: #46596c; line-height: 1.75; }

/* ---------- 行动横幅 ---------- */
.cta-band { background: linear-gradient(90deg, var(--navy-2), var(--blue)); color: #fff; }
.cta-band__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 26px; padding-bottom: 26px; }
.cta-band__eyebrow { font-size: .85rem; opacity: .8; }
.cta-band h2 { font-size: clamp(1.3rem, 2vw, 1.75rem); font-weight: 900; letter-spacing: .03em; margin-top: 4px; }
.cta-band__actions { display: flex; align-items: center; gap: 18px; }
.cta-band__tel { display: flex; align-items: center; gap: 10px; font-size: 1.7rem; font-weight: 800; letter-spacing: .02em; }
.cta-band__tel svg { font-size: 1.4rem; }

/* ---------- 资质证书 ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 18px; }
.cert { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; }
.cert .zoom { aspect-ratio: 3 / 3.8; background: #fff; }
.cert .zoom img { object-fit: contain; padding: 16px; }
.cert figcaption { padding: 16px; border-top: 1px solid var(--line); }
.cert strong { display: block; color: var(--blue); font-size: .84rem; line-height: 1.7; }
.cert span { display: block; margin-top: 4px; font-size: .76rem; color: var(--muted); }

/* ---------- 服务城市 ---------- */
.city-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.city { position: relative; padding: 16px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.city h3 { color: var(--blue); font-size: 1.15rem; font-weight: 800; }
.city p { margin-top: 6px; font-size: .84rem; color: #46596c; line-height: 1.7; }
.city--main { background: var(--blue); border-color: var(--blue); }
.city--main h3, .city--main p { color: #fff; }
.city--main span { display: inline-block; margin-top: 8px; font-size: .75rem; background: var(--orange); color: #fff; padding: 1px 8px; border-radius: 2px; }

/* ---------- 合作伙伴 ---------- */
.partner-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 12px; }
.partner-grid li {
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  min-height: 72px; padding: 16px 8px; background: #f7f9fb; border: 1px solid transparent; border-radius: var(--radius);
  transition: border-color .25s, box-shadow .25s;
}
.partner-grid li:hover { border-color: #b9cde2; box-shadow: 0 8px 20px rgba(18, 77, 136, .08); }
.partner-grid b { color: #486077; font-size: .95rem; font-weight: 700; letter-spacing: .02em; }
.partner-grid span { margin-top: 6px; font-size: .75rem; color: var(--muted); line-height: 1.5; }
.certs__more { margin-top: 14px; font-size: .88rem; color: #46596c; }
.partners__brands { margin-top: 16px; text-align: center; font-size: .88rem; color: #46596c; }
.partners__brands strong { color: var(--blue); }

/* ---------- 右侧悬浮栏 ---------- */
.float-bar { position: fixed; right: 16px; top: 50%; transform: translateY(-50%); z-index: 55; display: flex; flex-direction: column; gap: 2px; box-shadow: 0 8px 24px rgba(18, 59, 96, .18); border-radius: 4px; }
.float-bar > a, .float-bar__wx {
  position: relative; width: 48px; height: 54px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  background: var(--blue); color: #fff; font-size: .72rem; cursor: pointer; transition: background .2s;
}
.float-bar > a:first-child { border-radius: 4px 4px 0 0; background: var(--orange); color: var(--navy-2); }
.float-bar > a:last-child { border-radius: 0 0 4px 4px; }
.float-bar svg { font-size: 1.3rem; }
.float-bar > a:hover, .float-bar__wx:hover, .float-bar__wx:focus { background: var(--blue-2); }
.float-bar > a:first-child:hover { background: var(--orange-2); }
.float-bar__qr {
  position: absolute; right: 70px; top: 50%; transform: translateY(-50%); padding: 10px; background: #fff; border-radius: 4px;
  box-shadow: 0 8px 24px rgba(18, 59, 96, .2); text-align: center; color: var(--text); opacity: 0; visibility: hidden; transition: opacity .2s;
}
.float-bar__qr img { width: 140px; height: 140px; }
.float-bar__qr p { margin-top: 6px; font-size: .8rem; }
.float-bar__wx:hover .float-bar__qr, .float-bar__wx:focus .float-bar__qr, .float-bar__wx:focus-within .float-bar__qr { opacity: 1; visibility: visible; }

/* ---------- 页脚 ---------- */
.footer { background: var(--navy-2); color: rgba(255, 255, 255, .8); font-size: .88rem; }
.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding-top: 16px; padding-bottom: 16px; }
.footer strong { color: #fff; }
.footer .sep { margin: 0 12px; opacity: .4; }
.footer__small { font-size: .8rem; opacity: .75; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 28px; padding-top: 42px; padding-bottom: 34px; }
.footer__brand { color: #fff; font-weight: 800; font-size: 1.05rem; margin-bottom: 8px; }
.footer__grid .footer__small { line-height: 1.8; }
.footer__head { color: #fff; font-weight: 700; margin-bottom: 8px; }
.footer__links li { font-size: .84rem; line-height: 2; opacity: .8; }
.footer__bottom { border-top: 1px solid rgba(255, 255, 255, .12); padding-top: 12px; padding-bottom: 14px; font-size: .78rem; opacity: .7; }
.footer a:hover { color: #fff; text-decoration: underline; }

.mobile-bar { display: none; }

/* ---------- 图片查看 ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 100; background: rgba(6, 18, 32, .92);
  display: flex; align-items: center; justify-content: center; padding: 40px 70px;
}
.lightbox[hidden] { display: none; }
.lightbox figure { margin: 0; max-width: 100%; max-height: 100%; display: flex; flex-direction: column; align-items: center; }
.lightbox img { max-width: 100%; max-height: calc(100vh - 120px); object-fit: contain; border-radius: var(--radius); }
.lightbox figcaption { color: #fff; margin-top: 12px; font-size: .95rem; }
.lightbox button { position: absolute; background: rgba(255, 255, 255, .12); color: #fff; border: 0; cursor: pointer; border-radius: 50%; width: 48px; height: 48px; font-size: 1.8rem; line-height: 1; }
.lightbox button:hover { background: rgba(255, 255, 255, .25); }
.lightbox__close { top: 18px; right: 18px; }
.lightbox__prev { left: 14px; top: 50%; transform: translateY(-50%); }
.lightbox__next { right: 14px; top: 50%; transform: translateY(-50%); }

/* ---------- 出场动画 ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition: none !important; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1120px) {
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .reason-grid { grid-template-columns: repeat(2, 1fr); }
  .supply-notes { grid-template-columns: repeat(2, 1fr); }
  .city-grid { grid-template-columns: repeat(3, 1fr); }
  .partner-grid { grid-template-columns: repeat(4, 1fr); }
  .cert-grid { grid-template-columns: repeat(3, 1fr); }
  .scenes { grid-template-columns: repeat(3, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .case-grid--wide { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1280px) {
  .header__tel { display: none; }
  .brand__text strong { font-size: 1.15rem; }
  .bottom { grid-template-columns: 1fr; }
  .bottom__quality { padding-right: var(--gutter); }
  .bottom__contact { padding-left: var(--gutter); }
}

@media (max-width: 1120px) {
  .float-bar { display: none; }
  .values__grid { grid-template-columns: 1fr; }
  .values { margin-top: 16px; }
  :root { --header-h: 64px; }
  .nav-toggle {
    margin-left: auto;
    display: flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 44px; height: 44px; margin-left: auto; border: 0; background: none; cursor: pointer; padding: 8px;
  }
  .nav-toggle span { display: block; height: 2px; background: var(--blue); border-radius: 2px; transition: transform .25s, opacity .25s; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav {
    position: absolute; top: var(--header-h); left: 0; right: 0; margin: 0;
    flex-direction: column; gap: 0; background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px rgba(18, 59, 96, .1);
    max-height: 0; overflow: hidden; transition: max-height .3s ease;
  }
  .nav.is-open { max-height: 420px; }
  .nav a { padding: 14px var(--gutter); border-top: 1px solid #eef2f6; }
  .nav a::after { display: none; }
  .header__tel { display: flex; margin-left: auto; }
  .header__tel + .nav-toggle { margin-left: 0; }
  .band__grid { grid-template-columns: 1fr; }
  .bottom { grid-template-columns: 1fr; }
  .bottom__quality, .bottom__contact { padding-left: var(--gutter); padding-right: var(--gutter); }
  .about__grid { grid-template-columns: 1fr; gap: 24px; }
  .hero__bg { inset: 0; }
  .hero::before { background: linear-gradient(90deg, rgba(16, 47, 75, .96), rgba(16, 47, 75, .78) 45%, rgba(16, 47, 75, .2)); }
  .hero { min-height: 560px; }
  .contact { gap: 16px; }
  .cc { padding: 20px; }
  .cc__wx { flex-wrap: wrap; }
  .mix { padding: 24px; }
  .hero__slogan { display: none; }
}

@media (max-width: 680px) {
  :root { --gutter: 20px; font-size: 15px; }
  body { padding-bottom: calc(64px + env(safe-area-inset-bottom)); }
  .section, #cases { padding: 48px 0; }
  .contact { grid-template-columns: 1fr; }
  .brand img { width: 36px; }
  .brand__text strong { font-size: 1rem; letter-spacing: 0; }
  .brand__text small { display: none; }
  .header__tel { display: none; }
  .hero { min-height: 510px; }
  .hero__bg { background-position: 54% center; }
  .hero::before { background: linear-gradient(90deg, rgba(16,47,75,.96), rgba(16,47,75,.67)), linear-gradient(0deg, rgba(16,47,75,.6), transparent); }
  .hero__title { font-size: clamp(2rem, 7.7vw, 2.8rem); margin-top: 22px; }
  .hero__lead { font-size: 1rem; margin-top: 20px; }
  .hero__inner { padding-top: 42px; padding-bottom: 78px; }
  .hero__eyebrow { font-size: .82rem; letter-spacing: .1em; }
  .hero__actions .btn { min-width: 0; flex: 1; padding: 0 1em; font-size: .98rem; }
  .hero__tags { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 0; }
  .hero__tags li { padding: 0 12px; }
  .hero__tags li:nth-child(odd) { padding-left: 0; border-left: 0; }
  .sec-title { font-size: 1.7rem; }
  .sec-sub { width: 100%; order: 3; padding-bottom: 0; margin-top: 0; font-size: .9rem; }
  .sec-head { gap: 12px; }
  .svc-grid { grid-template-columns: 1fr; }
  .faq-list, .case-grid--wide, .mix-grid, .reason-grid, .supply-notes, .values__grid { grid-template-columns: 1fr; }
  .city-grid, .partner-grid, .scenes, .cert-grid { grid-template-columns: 1fr 1fr; }
  .topbar p:first-child { display: none; }
  .topbar__inner { justify-content: center; }
  .value { padding: 14px 16px; }
  .cta-band__inner { flex-direction: column; align-items: flex-start; }
  .cta-band__actions { width: 100%; flex-direction: column; align-items: stretch; }
  .footer__grid { grid-template-columns: 1fr; gap: 18px; }
  .facts div { grid-template-columns: 1fr; }
  .facts dt { padding-bottom: 4px; }
  .page-hero h1 { font-size: 1.6rem; }
  .case-grid--wide .case { flex-direction: column; }
  .table-wrap { overflow: visible; border: 0; background: none; }
  .ptable, .ptable tbody, .ptable tr, .ptable td { display: block; width: 100%; min-width: 0; }
  .ptable thead { display: none; }
  .ptable tr { background: #fff; border: 1px solid var(--line); border-left: 3px solid var(--blue-2); border-radius: var(--radius); padding: 10px 12px; margin-bottom: 8px; }
  .ptable td { border: 0; padding: 2px 0; }
  .ptable td:nth-child(2) { font-size: .82rem; }
  .ptable td:nth-child(2):empty, .ptable td:nth-child(2):only-child { display: none; }
  .svc { grid-template-columns: 36% 1fr; }
  .svc img { height: 100%; aspect-ratio: auto; }
  .svc__body { padding: 22px 16px 30px; }
  .svc h3 { font-size: 1.05rem; }
  .svc p { font-size: .86rem; }
  .factory { height: auto; grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .factory__main { grid-column: span 2; grid-row: auto; aspect-ratio: 1.5; }
  .factory__side { aspect-ratio: 4 / 3; }
  .icon-strip { grid-template-columns: 1fr 1fr; }
  .icon-strip li:nth-child(3) { border-left: 0; }
  .icon-strip li:nth-child(n+3) { border-top: 1px solid var(--line); }
  .panel { padding: 0; }
  .band__grid { gap: 48px; }
  .case-grid { grid-template-columns: 1fr; }
  .case { flex-direction: column; }
  .case .zoom { width: 100%; aspect-ratio: 1.55; }
  .case__body { padding: 20px; }
  .project-list li { flex-direction: column; gap: 2px; }
  .quality-grid { grid-template-columns: 1fr 1fr; gap: 18px 0; }
  .quality-grid li:nth-child(3) { border-left: 0; }
  .footer__inner { flex-direction: column; align-items: flex-start; gap: 4px; }
  .lightbox { padding: 56px 12px; }
  .lightbox__nav { top: auto !important; bottom: 14px; transform: none !important; }
  .mobile-bar {
    display: grid; grid-template-columns: 1fr 1fr 1.4fr; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
    background: #fff; padding-bottom: env(safe-area-inset-bottom); border-top: 1px solid var(--line); box-shadow: 0 -4px 16px rgba(18, 59, 96, .08);
  }
  .mobile-bar a { display: flex; align-items: center; justify-content: center; gap: 8px; height: 62px; font-weight: 700; color: var(--blue); }
  .mobile-bar a.is-primary { background: var(--orange); color: var(--navy-2); }
}
.nw { white-space: nowrap; }

/* ---------- 2026-09-25 精简版 ---------- */
.entries { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.entry {
  display: flex; align-items: center; gap: 22px; padding: 30px 32px; background: #fff; border-radius: var(--radius);
  border: 1px solid var(--line); box-shadow: 0 12px 32px rgba(18, 59, 96, .08); transition: box-shadow .25s, transform .25s;
}
.entry:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(18, 59, 96, .18); }
.entry > svg { font-size: 2.1rem; color: var(--blue-2); flex: none; }
.entry h2 { font-size: 1.2rem; color: var(--navy); font-weight: 700; }
.entry p { margin-top: 8px; font-size: .88rem; color: var(--muted); line-height: 1.8; }
.entry > div { flex: 1; }
.entry__arr { font-size: 1.3rem !important; color: var(--orange) !important; }
.steps-sec { padding: 44px 0; background: var(--navy); color: #fff; }
.steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 32px; padding: 0; margin: 0; list-style: none; }
.steps li { display: flex; flex-direction: column; align-items: center; justify-content: flex-start; text-align: center; gap: 16px; font-weight: 700; font-size: 1.25rem; line-height: 1.5; position: relative; }
.steps b { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,.05); border: 1px solid #668098; color: #f5bc81; font: 700 1.15rem/1 Arial, sans-serif; flex: none; }
.steps li + li::before { content: ""; position: absolute; left: -20px; top: 20px; width: 8px; height: 8px; border: solid rgba(255,255,255,.5); border-width: 2px 2px 0 0; transform: translateY(-50%) rotate(45deg); }
.about--short { max-width: 940px; text-align: center; }
.about.band--ice { padding: 76px 0; color: #fff; background: linear-gradient(rgba(11,35,56,.93), rgba(11,35,56,.93)), url("../img/factory-tower.jpg") center 45% / cover; }
.about .sec-title { color: #fff; }
.about--short p { color: #dbe6ee; font-size: 1.08rem; line-height: 2; }
.about--short .about__motto { margin-top: 28px; background: transparent; color: #f5bc81 !important; border-left: 0; padding: 0; font-size: .95rem; letter-spacing: .15em; }
.partner-grid li { justify-content: center; min-height: 64px; }
.footer__grid--short { grid-template-columns: 1fr 1fr !important; }
.contact__tip { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding: 22px; background: #fff; border: 1px solid var(--line); }
.contact__tip p { display: flex; flex-wrap: wrap; gap: 4px 14px; margin: 0; }
.contact__tip .cc__btn { flex: none; }
@media (max-width: 1120px) {
  .steps { gap: 24px; }
  .steps li { font-size: 1rem; }
  .steps li + li::before { left: -16px; }
}
@media (max-width: 680px) {
  .entries { grid-template-columns: 1fr; gap: 12px; }
  .header__inner { gap: 12px; }
  .brand { flex: 1; min-width: 0; gap: 9px; }
  .brand__text { min-width: 0; }
  .brand__text strong { font-size: .95rem; line-height: 1.4; }
  .header__tel + .nav-toggle { margin-left: auto; flex: none; }
  .values { margin-top: -30px; }
  .entry { padding: 22px; gap: 16px; }
  .entry > svg { font-size: 1.7rem; }
  .entry h2 { font-size: 1.1rem; }
  .entry p { font-size: .84rem; }
  .mix__number { margin-bottom: 44px; }
  .cc { padding: 26px; }
  .cc__wx { flex-wrap: wrap; }
  .cc__wx .cc__btn { white-space: normal; text-align: center; }
  .cc__tel { font-size: 1.5rem; }
  .about.band--ice { padding: 54px 0; }
  .about--short p { font-size: 1rem; }
  .steps { grid-template-columns: 1fr; row-gap: 22px; }
  .steps li { flex-direction: row; justify-content: flex-start; text-align: left; font-size: 1.15rem; }
  .hero__brand { font-size: 1.5rem; gap: 10px; margin-bottom: 22px; }
  .hero__brand span { font-size: .6rem; }
  .steps li::before { display: none; }
  .about--short { text-align: left; }
  .footer__grid--short { grid-template-columns: 1fr !important; }
}
@media (max-width: 480px) {
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { width: 100%; flex: none; justify-content: center; }
}

/* 交互可见性与键盘焦点 */
:focus-visible { outline: 3px solid #bc671b; outline-offset: 5px; }
.hero :focus-visible, .lightbox :focus-visible, .footer :focus-visible { outline-color: #f5bc81; }
#wechat { scroll-margin-top: calc(var(--header-h) + 24px); }
@media (max-width: 1120px) {
  .nav:not(.is-open) { visibility: hidden; }
  .nav.is-open { visibility: visible; }
}
@media (min-width: 681px) and (max-width: 900px) {
  .contact { grid-template-columns: 1fr 1fr; }
  .contact .cc:last-child { grid-column: span 2; }
  .mix { padding: 22px 18px; }
  .mix h3 { font-size: 1.1rem; }
  .case__body { display: block; padding: 18px; }
  .case__body .chips { margin-top: 10px; }
}


/* 本轮服务范围、资料配合与园区施工记录 */
.hero__coverage { display: inline-block; margin-top: 8px; font-size: .8em; color: #e0eaf2; }
.service-scope { display: grid; grid-template-columns: 1fr 1.2fr; margin-top: 30px; border: 1px solid var(--line); background: #fff; border-radius: var(--radius); overflow: hidden; }
.service-scope__area, .service-scope__brief { padding: 30px; }
.service-scope__area { background: var(--navy); color: #fff; }
.service-scope__area > span { display: block; color: #c3d5e5; font-size: .85rem; }
.service-scope__area strong { display: block; margin: 10px 0; font-size: 1.55rem; line-height: 1.5; }
.service-scope p { line-height: 1.8; font-size: .9rem; }
.service-scope__area p { color: #dbe6ee; }
.service-scope__brief h3, .delivery-card h3 { color: var(--navy); font-size: 1.15rem; }
.service-scope__brief ul, .case-record__scope ul { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 14px 0; }
.service-scope__brief li { padding: 6px 12px; background: var(--ice); color: var(--navy); border-radius: 4px; }
.service-scope__brief p { color: var(--muted); margin-bottom: 12px; }
.delivery-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.delivery-card { border-top: 3px solid var(--orange); padding: 28px; background: var(--ice); border-radius: 0 0 var(--radius) var(--radius); }
.delivery-card__label { display: inline-block; color: var(--blue-2); font-size: .85rem; margin-bottom: 10px; }
.delivery-card p { margin-top: 12px; color: var(--muted); line-height: 1.9; }
.case-record { display: grid; grid-template-columns: 1.5fr 1fr; gap: 30px; padding: 28px 30px; margin-top: 24px; border-left: 3px solid var(--orange); background: var(--ice); border-radius: 0 var(--radius) var(--radius) 0; }
.case-record__label, .case-record__scope > span { color: var(--blue-2); font-size: .85rem; }
.case-record h3 { color: var(--navy); margin: 6px 0 10px; font-size: 1.3rem; }
.case-record p { line-height: 1.8; }
.case-record__scope ul { flex-direction: column; margin-bottom: 0; color: var(--navy); }
@media (max-width: 680px) {
  .service-scope, .delivery-grid, .case-record { grid-template-columns: 1fr; }
  .service-scope__area, .service-scope__brief, .delivery-card, .case-record { padding: 24px; }
  .service-scope__area strong { font-size: 1.35rem; }
  .case-record { gap: 18px; }
}