/* ============================================================
   cu.omat.com.cn · 广东欧莱新金属材料有限公司（欧莱铜）
   铜色金属风 设计系统
   深古铜底 × 抛光铜金点缀 × 暖中性色
   ============================================================ */

:root {
  /* 深古铜底（原深蓝科技底，整体暖铜化） */
  --navy:        #2E1A0E;
  --navy-2:      #4A2810;
  --navy-deep:   #1B0E06;
  --navy-soft:   #3D2312;

  /* 铜色点缀 */
  --copper:      #C8834B;
  --copper-lt:   #E9B87C;
  --copper-dk:   #9A5F2E;
  --copper-glow: rgba(200, 131, 75, .18);

  /* 中性（暖调，贴合铜的温度） */
  --ink:    #211710;
  --ink-2:  #5C4A3A;
  --ink-3:  #91806D;
  --line:   #E8DFD4;
  --line-2: #F2EBE3;
  --bg:     #FAF6F0;
  --white:  #FFFFFF;

  /* 尺寸 */
  --wrap: 1200px;
  --radius: 4px;
  --shadow-sm: 0 2px 8px rgba(74,40,16,.06);
  --shadow:    0 8px 28px rgba(74,40,16,.10);
  --shadow-lg: 0 18px 48px rgba(74,40,16,.16);

  /* 字体 */
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color .2s, border-color .2s; }
img { max-width: 100%; display: block; border: 0; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

.copper { color: var(--copper); }

/* ============================ 顶部信息条 ============================ */
.topbar {
  background: var(--navy-deep);
  color: rgba(255,255,255,.72);
  font-size: 13px;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 38px; gap: 16px;
}
.topbar-slogan { letter-spacing: .02em; }
.topbar-contact { display: flex; align-items: center; gap: 10px; }
.topbar-contact b { font-weight: 600; letter-spacing: .02em; }
.tb-item:hover { color: var(--copper-lt); }
.tb-sep { opacity: .3; }

/* ============================ 主导航 ============================ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s;
}
.site-header.is-stuck { box-shadow: var(--shadow-sm); }

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 24px;
}

.logo { display: flex; align-items: center; flex-shrink: 0; }
.logo img { height: 40px; width: auto; object-fit: contain; }
.logo-text {
  font-size: 24px; font-weight: 700; letter-spacing: .04em; color: var(--navy);
}
.logo-text.light { color: #fff; }

.main-nav ul { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  display: block; padding: 10px 16px;
  font-size: 15px; font-weight: 500; color: var(--ink);
  position: relative; border-radius: var(--radius);
}
.main-nav a::after {
  content: ''; position: absolute; left: 16px; right: 16px; bottom: 4px;
  height: 2px; background: var(--copper);
  transform: scaleX(0); transform-origin: center; transition: transform .25s;
}
.main-nav a:hover { color: var(--copper-dk); }
.main-nav a:hover::after { transform: scaleX(1); }
.main-nav a.active { color: var(--copper-dk); font-weight: 600; }
.main-nav a.active::after { transform: scaleX(1); }

.header-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

.btn-copper-sm {
  display: inline-block; padding: 8px 18px; border-radius: var(--radius);
  background: linear-gradient(135deg, var(--copper) 0%, var(--copper-dk) 100%);
  color: #fff; font-size: 14px; font-weight: 500;
  transition: transform .2s, box-shadow .2s;
}
.btn-copper-sm:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px var(--copper-glow);
  color: #fff;
}

.nav-toggle { display: none; width: 40px; height: 40px; position: relative; }
.nav-toggle span {
  position: absolute; left: 9px; width: 22px; height: 2px; background: var(--navy);
  transition: transform .3s, opacity .3s;
}
.nav-toggle span:nth-child(1) { top: 13px; }
.nav-toggle span:nth-child(2) { top: 19px; }
.nav-toggle span:nth-child(3) { top: 25px; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ============================ 通用区块 ============================ */
.section { padding: 72px 0; }
.section-lg { padding: 96px 0; }
.section-navy { background: var(--navy); color: rgba(255,255,255,.86); }
.section-soft { background: var(--bg); }

.sec-head { text-align: center; margin-bottom: 48px; }
.sec-head .kicker {
  display: inline-block; font-size: 12px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--copper); font-weight: 600; margin-bottom: 12px;
}
.section-navy .sec-head .kicker { color: var(--copper-lt); }
.sec-head h2 {
  font-size: 32px; font-weight: 700; color: var(--navy); letter-spacing: .01em;
  line-height: 1.35;
}
.section-navy .sec-head h2 { color: #fff; }
.sec-head p { margin-top: 12px; color: var(--ink-2); font-size: 15px; }
.section-navy .sec-head p { color: rgba(255,255,255,.66); }
.sec-head .divider {
  width: 48px; height: 3px; margin: 18px auto 0;
  background: linear-gradient(90deg, var(--copper), var(--copper-lt));
}

/* ============================ Hero 轮播 ============================ */
.hero {
  position: relative; height: 560px; overflow: hidden; background: var(--navy-deep);
}
.hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity .9s ease;
  background-size: cover; background-position: center;
}
.hero-slide.is-active { opacity: 1; }
.hero-slide::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(27,14,6,.88) 0%, rgba(27,14,6,.62) 55%, rgba(27,14,6,.35) 100%);
}
.hero-content {
  position: relative; z-index: 2; height: 100%;
  display: flex; flex-direction: column; justify-content: center;
  max-width: var(--wrap); margin: 0 auto; padding: 0 24px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; align-self: flex-start;
  padding: 6px 14px; margin-bottom: 22px;
  border: 1px solid rgba(233,184,124,.45); border-radius: 100px;
  color: var(--copper-lt); font-size: 13px; letter-spacing: .06em;
  background: rgba(233,184,124,.10);
}
.hero-badge::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--copper-lt); box-shadow: 0 0 0 4px rgba(233,184,124,.2);
}
.hero h1 {
  font-size: 46px; font-weight: 700; color: #fff; line-height: 1.28;
  letter-spacing: .01em; max-width: 780px;
}
.hero h1 .accent { color: var(--copper-lt); }
.hero-sub {
  margin-top: 20px; font-size: 17px; color: rgba(255,255,255,.78);
  max-width: 640px; line-height: 1.8;
}
.hero-actions { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }

.btn-copper {
  display: inline-block; padding: 13px 32px; border-radius: var(--radius);
  background: linear-gradient(135deg, var(--copper) 0%, var(--copper-dk) 100%);
  color: #fff; font-size: 15px; font-weight: 500;
  transition: transform .2s, box-shadow .2s;
}
.btn-copper:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(200,131,75,.34); color: #fff; }

.btn-ghost {
  display: inline-block; padding: 13px 32px; border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.42); color: #fff; font-size: 15px;
  transition: background .2s, border-color .2s;
}
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.7); color: #fff; }

.hero-dots {
  position: absolute; z-index: 3; bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px;
}
.hero-dots button {
  width: 28px; height: 3px; background: rgba(255,255,255,.35); border-radius: 2px;
  transition: background .3s, width .3s;
}
.hero-dots button.is-active { background: var(--copper-lt); width: 44px; }

/* ============================ 数据指标条 ============================ */
.stats-bar {
  display: grid; grid-template-columns: repeat(4, 1fr);
  /* 深铜拉丝质感：暗→亮→暗的斜向渐变，像一块铜板 */
  background: linear-gradient(120deg, var(--navy) 0%, var(--navy-2) 52%, var(--navy) 100%);
  border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
}
.stat-item {
  padding: 32px 20px; text-align: center;
  border-right: 1px solid rgba(255,255,255,.08);
}
.stat-item:last-child { border-right: 0; }
.stat-num {
  font-size: 38px; font-weight: 700; color: var(--copper-lt);
  line-height: 1.2; letter-spacing: -.01em;
}
.stat-num small { font-size: 18px; font-weight: 600; margin-left: 2px; }
.stat-label {
  margin-top: 6px; font-size: 13px; color: rgba(255,255,255,.62); letter-spacing: .06em;
}

/* ============================ 产品卡片 ============================ */
.product-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.product-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: transform .28s, box-shadow .28s, border-color .28s;
}
.product-card:hover {
  transform: translateY(-6px); box-shadow: var(--shadow);
  border-color: var(--copper);
}
.pc-media { position: relative; padding-top: 68%; overflow: hidden; background: var(--navy-soft); }
.pc-media img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s;
}
.product-card:hover .pc-media img { transform: scale(1.06); }
.pc-body { padding: 22px; }
.pc-body h3 {
  font-size: 17px; font-weight: 600; color: var(--navy); margin-bottom: 8px;
  display: flex; align-items: center; gap: 8px;
}
.pc-body h3::before {
  content: ''; width: 3px; height: 15px; background: var(--copper); flex-shrink: 0;
}
.pc-summary {
  font-size: 14px; color: var(--ink-2); line-height: 1.75;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.pc-more {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 14px;
  font-size: 14px; color: var(--copper-dk); font-weight: 500;
}
.pc-more::after { content: '→'; transition: transform .25s; }
.product-card:hover .pc-more::after { transform: translateX(4px); }

/* ============================ 新闻列表 ============================ */
.news-list { display: flex; flex-direction: column; }
.news-item {
  display: grid; grid-template-columns: 240px 1fr; gap: 28px;
  padding: 26px 0; border-bottom: 1px solid var(--line);
  transition: background .2s;
}
.news-item:hover { background: var(--bg); }
.news-item:hover .ni-title { color: var(--copper-dk); }
.ni-media {
  border-radius: var(--radius); overflow: hidden; padding-top: 62%; position: relative;
  background: var(--navy-soft);
}
.ni-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ni-body { display: flex; flex-direction: column; justify-content: center; }
.ni-date {
  font-size: 13px; color: var(--copper); font-weight: 600; letter-spacing: .04em;
}
.ni-title {
  margin-top: 8px; font-size: 18px; font-weight: 600; color: var(--navy);
  line-height: 1.5; transition: color .2s;
}
.ni-summary {
  margin-top: 10px; font-size: 14px; color: var(--ink-2); line-height: 1.75;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* ==================== 首页新闻卡片（3 栏 · 图文上下） ==================== */
.news-cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  align-items: stretch;
}
.news-card {
  display: flex; flex-direction: column;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: transform .28s, box-shadow .28s, border-color .28s;
}
.news-card:hover {
  transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--copper);
}
.nc-media { position: relative; padding-top: 62%; overflow: hidden; background: var(--navy-soft); }
.nc-media img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s;
}
.news-card:hover .nc-media img { transform: scale(1.06); }
.nc-ph {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #2E1A0E, #4A2810);
  color: rgba(233,184,124,.55); font-size: 14px; letter-spacing: .22em; font-weight: 600;
}
.nc-body { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.nc-tag {
  align-self: flex-start; padding: 3px 10px; border-radius: 3px;
  font-size: 12px; font-weight: 500; letter-spacing: .03em;
  color: var(--copper-dk); background: rgba(200,131,75,.12);
  border: 1px solid rgba(200,131,75,.22);
}
.nc-title {
  margin-top: 12px; font-size: 16px; font-weight: 600; color: var(--navy); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color .2s;
}
.news-card:hover .nc-title { color: var(--copper-dk); }
.nc-summary {
  margin-top: 10px; font-size: 13.5px; color: var(--ink-2); line-height: 1.75;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
@media (max-width: 1024px) {
  .news-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .news-cards { grid-template-columns: 1fr; gap: 18px; }
  .nc-media { padding-top: 56%; }
  .nc-title { font-size: 15.5px; }
}

/* ============================ 面包屑 ============================ */
.crumbs {
  background: var(--bg); border-bottom: 1px solid var(--line); padding: 14px 0;
  font-size: 13px;
}
.crumbs ol { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.crumbs li { display: flex; align-items: center; gap: 8px; color: var(--ink-3); }
.crumbs li + li::before { content: '/'; color: var(--ink-3); opacity: .6; }
.crumbs a:hover { color: var(--copper-dk); }
.crumbs [aria-current="page"] { color: var(--ink); }

/* 内容区内嵌的轻量面包屑：去掉通栏底板，退回纯文字层级 */
.crumbs-plain {
  background: transparent; border-bottom: 0; padding: 0;
  margin-bottom: 34px; font-size: 13px;
}
.crumbs-plain ol { max-width: none; padding: 0; gap: 8px; }
.crumbs-plain li { color: var(--ink-3); }
.crumbs-plain li:first-child a {
  display: inline-flex; align-items: center; gap: 6px; color: var(--ink-2);
}
.crumbs-plain li:first-child a::before {
  content: ''; width: 6px; height: 6px; border-radius: 1px;
  background: var(--copper); flex-shrink: 0;
}
.crumbs-plain li:first-child a:hover { color: var(--copper-dk); }

/* ============================ 内页通用 ============================ */
.page-hero {
  position: relative; padding: 72px 0 64px;
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy-2) 100%);
  overflow: hidden;
}
.page-hero::after {
  content: ''; position: absolute; right: -80px; top: -80px;
  width: 380px; height: 380px; border-radius: 50%;
  background: radial-gradient(circle, rgba(200,131,75,.20) 0%, transparent 70%);
}
/* 工业蓝图纸纹底（内页头图统一质感） */
.page-hero::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(105deg, #000 0%, rgba(0,0,0,.5) 48%, transparent 84%);
  mask-image: linear-gradient(105deg, #000 0%, rgba(0,0,0,.5) 48%, transparent 84%);
}
.page-hero .wrap { position: relative; z-index: 2; }
.page-hero h1 { font-size: 36px; font-weight: 700; color: #fff; letter-spacing: .01em; }
.page-hero .ph-en {
  margin-top: 8px; font-size: 12px; letter-spacing: .28em; text-transform: uppercase;
  color: var(--copper-lt);
}
.page-hero p { margin-top: 14px; color: rgba(255,255,255,.72); max-width: 680px; }

/* 富文本正文 */
.article { max-width: 880px; margin: 0 auto; }
.article p { margin-bottom: 16px; line-height: 1.95; color: var(--ink); }
.article img { margin: 22px auto; border-radius: var(--radius); }
.article h2, .article h3 { margin: 28px 0 14px; color: var(--navy); }
.article h2 { font-size: 22px; }
.article h3 { font-size: 18px; }
.article ul { padding-left: 22px; margin-bottom: 16px; }
.article li { list-style: disc; margin-bottom: 6px; }

/* ============================ 分页 ============================ */
.pagination {
  display: flex; align-items: center; justify-content: center; flex-wrap: wrap;
  gap: 8px; margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--line);
}
.pg-btn, .pg-num {
  min-width: 38px; height: 38px; padding: 0 14px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: var(--radius);
  font-size: 14px; color: var(--ink-2); background: var(--white);
  transition: all .2s;
}
.pg-btn:hover, .pg-num:hover {
  border-color: var(--copper); color: var(--copper-dk); background: #FDF2E6;
}
.pg-num.is-current {
  background: linear-gradient(135deg, var(--copper), var(--copper-dk));
  border-color: var(--copper); color: #fff; font-weight: 600;
}
.pg-dots { color: var(--ink-3); padding: 0 4px; }
.pg-total { margin-left: 12px; font-size: 13px; color: var(--ink-3); }

/* ============================ CTA 通栏 ============================ */
.cta-band {
  padding: 56px 0;
  background: linear-gradient(120deg, var(--navy-deep) 0%, var(--navy) 60%, var(--navy-2) 100%);
  position: relative; overflow: hidden;
}
.cta-band::before {
  content: ''; position: absolute; left: -60px; bottom: -120px;
  width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(200,131,75,.22) 0%, transparent 70%);
}
.cta-inner {
  position: relative; z-index: 2;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.cta-text h2 { font-size: 28px; font-weight: 700; color: #fff; }
.cta-text p { margin-top: 8px; color: rgba(255,255,255,.7); font-size: 15px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ============================ 页脚 ============================ */
.site-footer { background: var(--navy-deep); color: rgba(255,255,255,.66); }
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.5fr; gap: 40px;
  padding: 56px 24px 40px;
}
.fcol h4 {
  font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 18px;
  padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,.1);
}
.fcol ul li { margin-bottom: 10px; font-size: 14px; }
.fcol ul li a:hover { color: var(--copper-lt); }
.f-logo { margin-bottom: 14px; }
.f-desc { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.55); }
.f-phone { margin-top: 18px; }
.f-phone-label { display: block; font-size: 12px; color: rgba(255,255,255,.45); }
.f-phone b { font-size: 22px; font-weight: 600; letter-spacing: .02em; }
.f-contact-list li { display: flex; gap: 10px; margin-bottom: 10px; font-size: 14px; }
.f-contact-list .fi {
  flex-shrink: 0; width: 34px; color: var(--copper); font-size: 13px; opacity: .9;
}
.f-wx { margin-top: 18px; display: flex; align-items: center; gap: 12px; }
.f-wx img {
  width: 84px; height: 84px; border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.14); background: #fff; padding: 4px;
}
.f-wx span { font-size: 13px; color: rgba(255,255,255,.5); }

.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); }
.fb-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; padding-top: 20px; padding-bottom: 20px;
  font-size: 13px; color: rgba(255,255,255,.45);
}
.fb-links a { margin-left: 18px; }
.fb-links a:hover { color: var(--copper-lt); }

/* ============================ 表单 ============================ */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 14px; color: var(--ink-2); font-weight: 500; }
.field label .req { color: var(--copper); margin-left: 2px; }
.field input, .field textarea, .field select {
  padding: 11px 14px; border: 1px solid var(--line); border-radius: var(--radius);
  font-size: 14px; font-family: inherit; color: var(--ink); background: var(--white);
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 0; border-color: var(--copper); box-shadow: 0 0 0 3px var(--copper-glow);
}
.field textarea { min-height: 120px; resize: vertical; }

/* 图形验证码 */
.captcha-row { display: flex; align-items: stretch; gap: 12px; }
.captcha-row input {
  flex: 1 1 auto; min-width: 0;
  letter-spacing: .16em; text-transform: uppercase;
}
.captcha-img {
  flex: 0 0 auto; display: block; width: 132px; height: 46px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #FAF6F0; cursor: pointer;
  transition: border-color .2s, box-shadow .2s;
}
.captcha-img:hover { border-color: var(--copper); box-shadow: 0 0 0 3px var(--copper-glow); }
.captcha-tip { font-size: 12px; color: var(--ink-3); margin-top: 2px; }

.form-submit { margin-top: 8px; }
.alert {
  padding: 12px 16px; border-radius: var(--radius); margin-bottom: 20px; font-size: 14px;
}
.alert-ok { background: #F0F9F4; border: 1px solid #BFE3CE; color: #1E7A44; }
.alert-err { background: #FDF3F2; border: 1px solid #F3C9C4; color: #A63A2E; }

/* ============================ 职位 ============================ */
.job-item {
  border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 16px;
  overflow: hidden; background: var(--white);
}
.job-head {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 24px; cursor: pointer; transition: background .2s;
}
.job-head:hover { background: var(--bg); }
.job-title { font-size: 17px; font-weight: 600; color: var(--navy); }
.job-meta { display: flex; gap: 18px; margin-top: 6px; font-size: 13px; color: var(--ink-3); }
.job-meta span::before { content: '·'; margin-right: 6px; color: var(--copper); }
.job-toggle { color: var(--copper); font-size: 13px; flex-shrink: 0; }
.job-body { display: none; padding: 0 24px 24px; border-top: 1px solid var(--line-2); }
.job-item.is-open .job-body { display: block; padding-top: 20px; }
.job-item.is-open .job-toggle::after { content: '收起'; }
.job-toggle::after { content: '查看详情'; }

/* ============================ 响应式 ============================ */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .hero h1 { font-size: 38px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: 0; }
  .stat-item:nth-child(1), .stat-item:nth-child(2) { border-bottom: 1px solid rgba(255,255,255,.08); }
}

@media (max-width: 768px) {
  .topbar-contact .tb-sep, .topbar-slogan { display: none; }
  .topbar-inner { justify-content: center; }

  .nav-toggle { display: block; }
  .header-right .btn-copper-sm { display: none; }
  .main-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--white); border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    max-height: 0; overflow: hidden; transition: max-height .3s ease;
  }
  .main-nav.is-open { max-height: 420px; }
  .main-nav ul { flex-direction: column; gap: 0; padding: 8px 0; }
  .main-nav a { padding: 14px 24px; font-size: 16px; border-radius: 0; }
  .main-nav a::after { display: none; }
  .main-nav a.active { background: #FDF2E6; border-left: 3px solid var(--copper); }

  .hero { height: 460px; }
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 15px; }
  .hero-content { padding: 0 20px; }

  .section, .section-lg { padding: 48px 0; }
  .sec-head { margin-bottom: 32px; }
  .sec-head h2 { font-size: 24px; }
  .page-hero { padding: 48px 0 40px; }
  .page-hero h1 { font-size: 26px; }

  .product-grid { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; gap: 16px; }
  .ni-media { padding-top: 56%; }
  .ni-title { font-size: 16px; }

  .footer-grid { grid-template-columns: 1fr; gap: 28px; padding: 40px 20px 28px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .form-grid { grid-template-columns: 1fr; }
  .pagination { gap: 6px; }
  .pg-total { width: 100%; text-align: center; margin: 8px 0 0; }
}

@media (max-width: 480px) {
  .stats-bar { grid-template-columns: 1fr; }
  .stat-item { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.08); }
  .stat-num { font-size: 30px; }
  .hero h1 { font-size: 24px; }
}

/* ============================ 产品详情 ============================ */
.product-detail {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
  align-items: start; margin-bottom: 40px;
}
.pd-media {
  border-radius: var(--radius); overflow: hidden; background: var(--navy-soft);
  border: 1px solid var(--line); position: relative; padding-top: 75%;
}
.pd-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.pd-info h1, .pd-info .pd-name { font-size: 28px; font-weight: 700; color: var(--navy); line-height: 1.4; margin: 0; }
.pd-sub { margin-top: 8px; color: var(--copper-dk); font-size: 15px; font-weight: 500; }
.pd-summary {
  margin-top: 18px; padding: 16px 18px; background: var(--bg);
  border-left: 3px solid var(--copper); border-radius: var(--radius);
  font-size: 15px; color: var(--ink-2); line-height: 1.9;
}
.pd-specs { margin-top: 22px; }
.pd-specs h4 { font-size: 16px; color: var(--navy); margin-bottom: 12px; font-weight: 600; }
.pd-specs table { width: 100%; border-collapse: collapse; font-size: 14px; }
.pd-specs th, .pd-specs td { padding: 10px 12px; border: 1px solid var(--line); text-align: left; }
.pd-specs th { background: var(--bg); color: var(--ink-2); width: 40%; font-weight: 500; }
.pd-actions { margin-top: 26px; display: flex; gap: 12px; flex-wrap: wrap; }
.pd-content { max-width: none; }

/* 供货信息（GEO 常用事实项） */
.pd-meta { margin-top: 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 4px 24px; }
.pd-meta > div { display: flex; gap: 10px; font-size: 14px; padding: 8px 0; border-bottom: 1px dashed var(--line); }
.pd-meta dt { color: var(--ink-3); flex: 0 0 64px; }
.pd-meta dd { color: var(--ink); margin: 0; }

/* 产品技术指标速览表（可被检索与 AI 直接引用的事实清单） */
.spec-overview-wrap { overflow-x: auto; }
.spec-overview {
  width: 100%; border-collapse: collapse; background: #fff;
  border-radius: var(--radius); overflow: hidden; font-size: 14px;
}
.spec-overview caption { caption-side: top; text-align: left; padding: 0 0 12px; color: var(--ink-3); font-size: 13px; }
.spec-overview th, .spec-overview td {
  padding: 14px 16px; border-bottom: 1px solid var(--line);
  vertical-align: top; text-align: left;
}
.spec-overview thead th { background: var(--navy); color: #fff; font-weight: 600; white-space: nowrap; }
.spec-overview tbody th { width: 200px; background: var(--bg); }
.spec-overview tbody th a { color: var(--copper-dk); font-weight: 600; }
.spec-overview tbody th a:hover { text-decoration: underline; }
.so-item { display: inline-block; margin: 0 16px 6px 0; color: var(--ink-2); }
.so-item b { color: var(--ink-3); font-weight: 500; margin-right: 4px; }
.so-item b::after { content: '：'; }

/* 常见问题（FAQ） */
.faq-list { max-width: 880px; }
.faq-item {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; margin-bottom: 12px; overflow: hidden;
}
.faq-item summary {
  cursor: pointer; padding: 16px 46px 16px 20px; position: relative;
  font-weight: 600; color: var(--navy); font-size: 15px; list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+'; position: absolute; right: 20px; top: 50%; transform: translateY(-58%);
  color: var(--copper); font-size: 20px; font-weight: 400;
}
.faq-item[open] summary::after { content: '−'; }
.faq-item[open] summary { border-bottom: 1px solid var(--line); }
.faq-a { padding: 16px 20px; color: var(--ink-2); line-height: 1.9; font-size: 14px; }

.notfound { text-align: center; padding: 90px 0; }
.notfound h2 { font-size: 24px; color: var(--navy); margin-bottom: 16px; }
.notfound a { color: var(--copper-dk); font-weight: 600; }
.notfound a:hover { text-decoration: underline; }

/* ============================ 新闻详情 ============================ */
.news-meta {
  display: flex; flex-wrap: wrap; gap: 18px; font-size: 13px;
  color: var(--ink-3); margin-bottom: 22px; padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.news-meta b { color: var(--copper-dk); font-weight: 600; }
.rel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.rel-card {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: var(--white); transition: transform .25s, box-shadow .25s, border-color .25s;
}
.rel-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--copper); }
.rc-media { position: relative; padding-top: 58%; background: var(--navy-soft); overflow: hidden; }
.rc-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.rc-body { padding: 14px 16px; }
.rc-date { font-size: 12px; color: var(--copper); font-weight: 600; }
.rc-body h4 { margin-top: 6px; font-size: 15px; font-weight: 600; color: var(--navy); line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ============================ 关于页 ============================ */
.company-facts {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 28px;
  margin-top: 36px; padding-top: 32px; border-top: 1px solid var(--line);
}
.cf-item { display: flex; gap: 10px; font-size: 14px; }
.cf-k { flex-shrink: 0; width: 72px; color: var(--ink-3); }
.cf-v { color: var(--ink); font-weight: 500; }

/* ============================ 招聘正文 ============================ */
.job-body { color: var(--ink-2); font-size: 14px; line-height: 1.9; }
.job-body p { margin-bottom: 12px; }
.job-body img { max-width: 100%; border-radius: var(--radius); margin: 10px 0; }
.job-body h2, .job-body h3, .job-body h4 { color: var(--navy); margin: 16px 0 10px; }

/* ============================ 联系页 ============================ */
.contact-layout {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start;
}
.contact-info .article { max-width: none; }
.contact-info h3 { font-size: 17px; color: var(--navy); margin: 26px 0 12px; }
.contact-info h3:first-child { margin-top: 0; }
.contact-info .ci-item { display: flex; gap: 12px; margin-bottom: 12px; font-size: 14px; }
.contact-info .ci-item .ci-k { flex-shrink: 0; width: 56px; color: var(--copper); font-weight: 500; }
.contact-info .ci-item .ci-v { color: var(--ink-2); }
.contact-form-wrap {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px;
}
.contact-form-wrap h3 { font-size: 18px; color: var(--navy); margin-bottom: 18px; }

/* ============================ 响应式补充 ============================ */
@media (max-width: 768px) {
  .product-detail, .contact-layout { grid-template-columns: 1fr; gap: 24px; }
  .pd-info h1, .pd-info .pd-name { font-size: 24px; }
  .pd-meta { grid-template-columns: 1fr; }
  .spec-overview tbody th { width: 130px; }
  .rel-grid { grid-template-columns: 1fr; }
  .company-facts { grid-template-columns: 1fr; }
}

/* ============================================================
   公司简介页（/about）· 专属版式
   头图企业名片 → 数据指标 → 企业概况+企业档案 → 产品矩阵
   ============================================================ */

/* ---- 1. 头图：左文案 + 右企业名片 ---- */
.page-hero-about { padding: 80px 0 104px; }
.ph-flex {
  display: flex; align-items: center; justify-content: space-between; gap: 56px;
}
.ph-main { max-width: 600px; }
.ph-main h1 { font-size: 40px; }

.ph-card {
  flex-shrink: 0; width: 336px;
  border: 1px solid rgba(255,255,255,.15); border-radius: 6px;
  background: rgba(255,255,255,.06);
  -webkit-backdrop-filter: blur(10px) saturate(160%);
  backdrop-filter: blur(10px) saturate(160%);
  box-shadow: 0 22px 54px rgba(27,14,6,.46);
  padding: 6px 24px;
}
.phc-row {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 17px 0; border-bottom: 1px dashed rgba(255,255,255,.13);
}
.phc-row:last-child { border-bottom: 0; }
.phc-k { flex-shrink: 0; font-size: 13px; color: rgba(255,255,255,.48); letter-spacing: .05em; }
.phc-v { font-size: 14px; font-weight: 600; color: #fff; text-align: right; line-height: 1.5; }

/* ---- 2. 数据指标条（上浮压住头图底边） ---- */
.about-stats-wrap { position: relative; z-index: 5; margin-top: -50px; }
.about-stats-wrap .stats-bar { box-shadow: 0 20px 46px rgba(74,40,16,.26); }

/* ---- 3. 企业概况 + 企业档案 ---- */
.about-layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 328px;
  gap: 52px; align-items: start;
}
.about-main { min-width: 0; }

.sec-head-left { margin-bottom: 26px; }
.sec-head-left .kicker {
  display: inline-block; font-size: 12px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--copper); font-weight: 600; margin-bottom: 10px;
}
.sec-head-left h2 {
  font-size: 26px; font-weight: 700; color: var(--navy);
  line-height: 1.4; padding-bottom: 15px; position: relative;
}
.sec-head-left h2::after {
  content: ''; position: absolute; left: 0; bottom: 0;
  width: 46px; height: 3px;
  background: linear-gradient(90deg, var(--copper), var(--copper-lt));
}

/* 正文：取消首行缩进，首段做导语处理 */
.article-flow { max-width: none; }
.article-flow p { text-indent: 0 !important; }
.article-flow p { font-size: 15px; line-height: 2.05; color: var(--ink-2); margin-bottom: 18px; }
.article-flow > p:first-of-type {
  font-size: 16px; line-height: 2.05; color: var(--ink);
  padding: 2px 0 2px 18px; border-left: 3px solid var(--copper);
  margin-bottom: 26px;
}
.article-flow img { margin: 26px auto; border-radius: 6px; box-shadow: var(--shadow-sm); }
.article-flow h2, .article-flow h3 { color: var(--navy); }

/* 企业档案卡 */
.fact-card {
  position: sticky; top: 96px;
  background: var(--white); border: 1px solid var(--line); border-radius: 6px;
  overflow: hidden; box-shadow: var(--shadow-sm);
}
.fc-title {
  position: relative; font-size: 15px; font-weight: 600; color: #fff;
  background: linear-gradient(120deg, var(--navy) 0%, var(--navy-2) 100%);
  padding: 17px 22px 15px;
}
.fc-title::after {
  content: ''; position: absolute; left: 22px; bottom: 0;
  width: 34px; height: 2px; background: var(--copper);
}
.fc-list { padding: 6px 22px; }
.fc-row {
  display: grid; grid-template-columns: 74px 1fr; gap: 12px;
  padding: 13px 0; border-bottom: 1px dashed var(--line); font-size: 14px;
}
.fc-row:last-child { border-bottom: 0; }
.fc-row dt { font-size: 13px; color: var(--ink-3); }
.fc-row dd { margin: 0; color: var(--ink); font-weight: 500; line-height: 1.6; word-break: break-word; }
.fc-cta { display: block; text-align: center; margin: 4px 22px 22px; }

/* ---- 4. 产品矩阵 ---- */
.about-products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.ap-card {
  position: relative; overflow: hidden;
  background: var(--white); border: 1px solid var(--line); border-radius: 6px;
  padding: 26px 24px 24px;
  transition: transform .28s, box-shadow .28s, border-color .28s;
}
.ap-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--copper), var(--copper-lt));
  transform: scaleY(0); transform-origin: top; transition: transform .32s;
}
.ap-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.ap-card:hover::before { transform: scaleY(1); }
.ap-no {
  display: block; margin-bottom: 12px;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 12px; font-weight: 700; letter-spacing: .14em; color: var(--copper);
}
.ap-card h3 { font-size: 16px; font-weight: 600; color: var(--navy); line-height: 1.55; margin-bottom: 10px; }
.ap-card p { font-size: 14px; color: var(--ink-2); line-height: 1.85; }

/* ---- 5. 响应式 ---- */
@media (max-width: 1080px) {
  .about-layout { grid-template-columns: 1fr; gap: 40px; }
  .fact-card { position: static; }
  .about-products { grid-template-columns: repeat(2, 1fr); }
  .ph-flex { gap: 36px; }
  .ph-card { width: 300px; }
  .ph-main h1 { font-size: 34px; }
}

@media (max-width: 768px) {
  .page-hero-about { padding: 52px 0 76px; }
  .ph-flex { flex-direction: column; align-items: stretch; gap: 26px; }
  .ph-card { width: 100%; padding: 2px 20px; }
  .ph-main h1 { font-size: 27px; }
  .about-stats-wrap { margin-top: -34px; }
  .about-products { grid-template-columns: 1fr; }
  .sec-head-left h2 { font-size: 22px; }
  .fc-row { grid-template-columns: 68px 1fr; gap: 10px; }
  .article-flow > p:first-of-type { font-size: 15px; padding-left: 14px; }
}