@charset "UTF-8";
/* ==========================================================================
   河北钢多多金属制品有限公司 — 官网全局样式
   风格：工业钢铁风（深蓝 + 钢灰 + 工业橙点缀）
   说明：本文件包含全部页面样式，含响应式适配
   ========================================================================== */

/* ---------------------------- 1. 设计变量 ---------------------------- */
:root {
  /* 主色：企业蓝（参考站配色） */
  --navy-900: #08345F;
  --navy-800: #0C447C;
  --navy-700: #1466B1;
  --navy-600: #2E7BC4;

  /* 辅色：青绿（标题条 / 标语通栏 / 页脚底条） */
  --teal: #01A88B;
  --teal-dark: #018A72;
  --teal-deep: #017360;
  --teal-light: #E1F5EE;

  /* 辅色：浅蓝 */
  --blue-50: #E6F1FB;
  --blue-100: #B5D4F4;

  /* 辅色：钢灰系 */
  --steel-800: #2C3948;
  --steel-700: #3E4C5C;
  --steel-500: #66788C;
  --steel-300: #A7B4C2;
  --steel-100: #E4EAF1;

  /* 点缀色：电话红（参考站页头电话） */
  --accent: #E62129;
  --accent-dark: #C41820;

  /* 中性色（参考站为白底 + 浅灰分区） */
  --bg: #FFFFFF;
  --bg-gray: #F5F7FA;
  --white: #FFFFFF;
  --text: #2C2C2A;
  --text-soft: #5F5E5A;
  --line: #D9DEE5;

  /* 占位提示色（待替换内容统一使用） */
  --ph-bg: #FFF9E6;
  --ph-border: #E9C46A;
  --ph-text: #8A6D1F;
  --ph-badge: #5A4408;

  /* 其他 */
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 6px 24px rgba(12, 68, 124, 0.09);
  --shadow-lg: 0 14px 40px rgba(12, 68, 124, 0.15);
  --container: 1200px;
  --header-h: 88px;
}


/* ---------------------------- 2. 基础重置 ---------------------------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; transition: color .25s, background-color .25s; }

h1, h2, h3, h4 { margin: 0 0 .6em; line-height: 1.3; font-weight: 700; }
h1 { font-size: 2.45rem; }
h2 { font-size: 1.9rem; }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }

ul { margin: 0; padding: 0; list-style: none; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* 可跳转到主内容（无障碍） */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--accent); color: #fff; padding: .6rem 1rem;
}
.skip-link:focus { left: 0; }

/* ---------------------------- 3. 布局工具 ---------------------------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 20px; }

.section { padding: 76px 0; }
.section--tight { padding: 54px 0; }
.section--gray { background: var(--bg-gray); }
.section--white { background: var(--white); }
.section--navy { background: var(--navy-800); color: #DCE6F2; }
.section--navy h2 { color: #fff; }

.section-head { max-width: 760px; margin: 0 auto 46px; text-align: center; }
.section-head .eyebrow {
  display: inline-block; font-size: .82rem; letter-spacing: .22em;
  color: var(--accent); font-weight: 700; margin-bottom: .5rem; text-transform: uppercase;
}
.section-head h2 { position: relative; padding-bottom: 16px; }
.section-head h2::after {
  content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 56px; height: 4px; background: var(--accent); border-radius: 2px;
}
.section-head p { color: var(--text-soft); margin: 0; }
.section--navy .section-head p { color: #A9BED8; }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------------------------- 4. 占位标记（待替换内容） ---------------------------- */
.ph-block {
  position: relative;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: .4rem; text-align: center; padding: 1.5rem 1rem;
  background: var(--ph-bg); border: 1px dashed var(--ph-border);
  border-radius: var(--radius); color: var(--ph-text);
}
.ph-block::after {
  content: "待替换"; position: absolute; top: 8px; right: 8px;
  background: var(--ph-border); color: var(--ph-badge);
  font-size: 11px; font-weight: 700; padding: 1px 8px; border-radius: 999px;
}
.ph-block .ph-icon { font-size: 1.6rem; opacity: .75; }
.ph-block .ph-label { font-size: 13px; font-weight: 600; }
.ph-block .ph-hint { font-size: 12px; opacity: .85; line-height: 1.5; }

.ph-text {
  background: var(--ph-bg);
  border-bottom: 1px dashed var(--ph-border);
  color: var(--ph-text);
  padding: 0 .35em;
  border-radius: 3px;
  font-size: .94em;
}

/* --------- 图片（示意图 / 实拍图通用） --------- */
.ph-img {
  display: block; width: 100%; height: auto;
  background: #fff;
}
.card-media .ph-img { border-bottom: 1px solid var(--steel-100); }
.detail-thumbs .ph-img { border-radius: var(--radius-sm); }
.cert-card .ph-img { border-radius: var(--radius-sm); }
.qr-item .ph-img { border-radius: var(--radius-sm); }
.split-media .ph-img { border-radius: var(--radius); box-shadow: var(--shadow); }

/* Logo */
.logo-img { display: block; height: 46px; width: auto; }
.footer-logo-img { display: block; height: 46px; width: auto; margin-bottom: 16px; }

/* ---------------------------- 5. 顶部导航（白底页头 + 蓝色通栏） ---------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--white);
  box-shadow: 0 1px 0 var(--line);
}
.header-top {
  min-height: var(--header-h);
  display: flex; align-items: center; gap: 24px;
}
.header-top .logo { flex: none; }

/* 站内搜索 */
.search-box { position: relative; flex: 1; max-width: 400px; margin-left: auto; }
.search-box form {
  display: flex; border: 2px solid var(--navy-700);
  border-radius: var(--radius-sm); overflow: hidden;
}
.search-box input {
  flex: 1; min-width: 0; border: 0; padding: 9px 14px;
  font-family: inherit; font-size: 14px; color: var(--text); background: var(--white);
}
.search-box input:focus { outline: none; }
.search-box button {
  flex: none; border: 0; padding: 0 18px; cursor: pointer;
  background: var(--navy-700); color: #fff; font-family: inherit;
  font-size: 14px; font-weight: 700; transition: background .25s;
}
.search-box button:hover { background: var(--navy-800); }
.search-result {
  position: absolute; left: 0; right: 0; top: calc(100% + 5px); z-index: 130;
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
  max-height: 400px; overflow-y: auto;
}
.search-result a {
  display: block; padding: 10px 14px;
  border-bottom: 1px solid var(--blue-50);
}
.search-result a:last-child { border-bottom: 0; }
.search-result a:hover { background: var(--blue-50); }
.search-result strong { display: block; color: var(--navy-800); font-size: 14px; font-weight: 700; }
.search-result em { font-style: normal; color: var(--text-soft); font-size: 12.4px; }
.search-empty { padding: 15px; color: var(--text-soft); font-size: 13.4px; text-align: center; }

.header-tel {
  flex: none; display: flex; flex-direction: column; line-height: 1.3; text-align: right;
  padding-left: 22px; border-left: 1px solid var(--line);
}
.header-tel span { font-size: 12.4px; color: var(--text-soft); }
.header-tel strong { font-size: 1.5rem; color: var(--accent); font-weight: 800; letter-spacing: .01em; }

/* 蓝色通栏导航（栏目铺满） */
.main-nav { background: var(--navy-700); }
.main-nav ul { display: flex; align-items: stretch; }
.main-nav li { flex: 1; }
.main-nav a {
  display: flex; align-items: center; justify-content: center;
  padding: 15px 8px; color: #fff; font-size: 15.6px; white-space: nowrap;
}
.main-nav a:hover { background: var(--navy-800); }
.main-nav a.active { background: var(--navy-900); font-weight: 700; }

.nav-toggle {
  display: none; width: 44px; height: 40px; padding: 0; flex: none;
  background: transparent; border: 1px solid var(--line);
  border-radius: var(--radius-sm); cursor: pointer;
}
.nav-toggle span {
  display: block; width: 20px; height: 2px; margin: 4px auto;
  background: var(--navy-800); border-radius: 2px; transition: .3s;
}

/* ---------------------------- 6. 首页主视觉 ---------------------------- */
.hero {
  position: relative; overflow: hidden;
  background:
    linear-gradient(120deg, var(--navy-900) 0%, var(--navy-800) 45%, var(--navy-700) 100%);
  color: #fff; padding: 78px 0 84px;
}
/* 金属拉丝纹理 */
.hero::before {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image:
    repeating-linear-gradient(115deg, rgba(255,255,255,.045) 0 2px, transparent 2px 7px),
    repeating-linear-gradient(0deg, rgba(255,255,255,.03) 0 1px, transparent 1px 60px);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; right: -140px; top: -140px;
  width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(1, 168, 139,.35), transparent 68%);
  pointer-events: none;
}
.hero-inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(1, 168, 139, .16); border: 1px solid rgba(1, 168, 139, .5);
  color: #7FE3CE; font-size: 13px; font-weight: 700;
  padding: 5px 14px; border-radius: 999px; margin-bottom: 18px;
}
.hero h1 { color: #fff; font-size: 2.7rem; margin-bottom: 18px; }
.hero h1 .hl { color: var(--accent); }
.hero-lead { color: #B9CBE0; font-size: 1.05rem; max-width: 560px; margin-bottom: 26px; }

.hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-bottom: 30px; }
.hero-points li { display: flex; align-items: center; gap: 8px; color: #D5E2F0; font-size: 14px; }
.hero-points li::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex: none;
}

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 30px; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 700; cursor: pointer;
  border: 2px solid transparent; transition: all .25s;
}
.btn-primary { background: var(--navy-700); color: #fff; }
.btn-primary:hover { background: var(--navy-800); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(12, 68, 124, .3); }
.btn-ghost { border-color: rgba(255, 255, 255, .45); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }
.btn-outline { border-color: var(--navy-700); color: var(--navy-700); }
.btn-outline:hover { background: var(--navy-700); color: #fff; }

/* 主视觉右侧：核心产品卡 */
.hero-card {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 14px; padding: 16px;
  box-shadow: var(--shadow-lg);
}
.hero-card-title {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13px; color: #9DB3CC; letter-spacing: .1em; margin-bottom: 12px;
}
.hero-card .ph-block { min-height: 236px; background: rgba(255, 255, 255, .9); border-color: var(--ph-border); }
.hero-card-items { margin-top: 14px; display: grid; gap: 8px; }
.hero-card-items li {
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(255, 255, 255, .07); border-radius: var(--radius-sm);
  padding: 9px 12px; font-size: 14px; color: #DCE6F2;
}
.hero-card-items li span { color: #8FA6C0; font-size: 12px; }

/* ---------------------------- 7. 数据条 ---------------------------- */
.stats { background: var(--blue-50); color: var(--text); padding: 0; }
.stats-inner {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: 30px 0; gap: 18px;
}
.stat { text-align: center; position: relative; }
.stat + .stat::before {
  content: ""; position: absolute; left: 0; top: 12%; height: 76%; width: 1px;
  background: rgba(20, 102, 177, .2);
}
.stat-num { font-size: 1.7rem; font-weight: 800; color: var(--navy-700); line-height: 1.2; }
.stat-num small { font-size: .55em; margin-left: 3px; font-weight: 700; }
.stat-label { font-size: 13px; color: var(--text-soft); margin-top: 4px; }

/* ---------------------------- 8. 卡片通用 ---------------------------- */
.card {
  background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .28s, box-shadow .28s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.card-media { position: relative; }
.card-media .ph-block { min-height: 190px; border-radius: 0; border: 0; border-bottom: 1px dashed var(--ph-border); }
.card-body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.card-body h3 { margin-bottom: 8px; color: var(--navy-800); }
.card-body p { color: var(--text-soft); font-size: 14px; margin-bottom: 14px; }
.card-more {
  margin-top: auto; display: inline-flex; align-items: center; gap: 6px;
  color: var(--accent); font-weight: 700; font-size: 14px;
}
.card-more:hover { gap: 10px; color: var(--teal-deep); }

.badge {
  display: inline-block; font-size: 12px; font-weight: 700;
  padding: 2px 10px; border-radius: 999px; line-height: 1.6;
}
.badge-self { background: rgba(1, 168, 139, .13); color: var(--teal-deep); border: 1px solid rgba(1, 168, 139,.35); }
.badge-out { background: var(--steel-100); color: var(--steel-700); border: 1px solid #CFD9E4; }
.card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }

.spec-list { margin: 0 0 4px; display: grid; gap: 6px; }
.spec-list li {
  display: flex; gap: 8px; font-size: 13.5px; color: var(--text-soft);
  padding-left: 16px; position: relative;
}
.spec-list li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 6px; height: 6px; border-radius: 50%; background: var(--steel-300);
}

/* ---------------------------- 9. 产品体系总览 ---------------------------- */
.cat-card {
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 26px 26px 22px; border-top: 4px solid var(--navy-700);
  display: flex; flex-direction: column;
}
.cat-card--accent { border-top-color: var(--accent); }
.cat-card--muted { border-top-color: var(--steel-300); }
.cat-card h3 { color: var(--navy-800); display: flex; align-items: center; gap: 10px; }
.cat-num {
  font-size: 13px; font-weight: 800; color: var(--accent);
  background: rgba(1, 168, 139,.1); border-radius: 4px; padding: 2px 8px;
}
.cat-card p { color: var(--text-soft); font-size: 14px; }
.chip-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 8px; }
.chip {
  font-size: 13px; padding: 5px 12px; border-radius: 999px;
  background: var(--steel-100); color: var(--steel-700);
}
.chip--accent { background: rgba(1, 168, 139,.12); color: var(--teal-deep); font-weight: 700; }
.chip--ghost { background: #F0F2F5; color: #8494A6; }

/* ---------------------------- 10. 左右图文区 ---------------------------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; align-items: center; }
.split--reverse .split-media { order: 2; }
.split-media .ph-block { min-height: 340px; }

.feature-list { display: grid; gap: 16px; margin: 0 0 22px; }
.feature-list li { display: flex; gap: 14px; }
.feature-ico {
  flex: none; width: 40px; height: 40px; border-radius: 8px;
  background: rgba(1, 168, 139,.12); color: var(--teal-deep);
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 15px;
}
.feature-list h4 { margin: 0 0 2px; font-size: 15.5px; color: var(--navy-800); }
.feature-list p { margin: 0; font-size: 13.8px; color: var(--text-soft); }

/* ---------------------------- 11. 服务流程 ---------------------------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step {
  position: relative; background: var(--white); border-radius: var(--radius);
  padding: 26px 22px; box-shadow: var(--shadow); border-bottom: 3px solid var(--steel-100);
}
.step:hover { border-bottom-color: var(--accent); }
.step-num {
  font-size: 1.6rem; font-weight: 800; color: var(--steel-100);
  line-height: 1; margin-bottom: 10px; letter-spacing: .02em;
}
.step h4 { margin: 0 0 6px; font-size: 16px; color: var(--navy-800); }
.step p { margin: 0; font-size: 13.8px; color: var(--text-soft); }

/* 售后服务承诺条 */
.promise {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 30px;
}
.promise-item {
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius); padding: 22px 24px; text-align: center;
}
.promise-item strong { display: block; font-size: 1.5rem; color: var(--accent); margin-bottom: 4px; }
.promise-item span { font-size: 13.5px; color: #B9CBE0; }

/* ---------------------------- 12. 资质证书 ---------------------------- */
.cert-card {
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 16px 16px 20px; text-align: center;
}
.cert-card .ph-block { min-height: 210px; margin-bottom: 14px; }
.cert-card h4 { margin: 0 0 4px; font-size: 15px; color: var(--navy-800); }
.cert-card p { margin: 0; font-size: 12.5px; color: var(--text-soft); }

/* 资质证书卡片（真实扫描件，点击放大） */
.cert-pic {
  display: block; overflow: hidden; line-height: 0;
  border-radius: var(--radius-sm); background: #EEF2F7;
  border: 1px solid #E5EAF1;
  aspect-ratio: 3 / 4; margin-bottom: 14px;
}
.cert-pic img {
  display: block; width: 100%; height: 100%;
  object-fit: cover; object-position: top center;
  transition: transform .4s ease;
}
.cert-pic:hover img { transform: scale(1.03); }
.cert-card .cert-subject {
  font-size: 13px; color: var(--navy-700);
  font-weight: 600; margin: 0 0 6px;
}
.cert-card .cert-meta { font-size: 12px; line-height: 1.65; }

/* 真实二维码 */
.qr-img {
  display: block; width: 100%; height: auto;
  aspect-ratio: 1 / 1; object-fit: contain;
  border-radius: var(--radius-sm);
  border: 1px solid #E5EAF1; background: #fff;
}

/* ---------------------------- 13. 内页头图 ---------------------------- */
.page-hero {
  position: relative; overflow: hidden;
  background: linear-gradient(115deg, var(--navy-900), var(--navy-700));
  color: #fff; padding: 56px 0 50px;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0; opacity: .45;
  background-image: repeating-linear-gradient(115deg, rgba(255,255,255,.05) 0 2px, transparent 2px 8px);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; font-size: 2.1rem; margin-bottom: 8px; }
.page-hero p { color: #B9CBE0; margin: 0; max-width: 720px; }
.breadcrumb { font-size: 13px; color: #9DB3CC; margin-bottom: 12px; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: #6A87A8; margin: 0 6px; }

/* ---------------------------- 14. 筛选标签 ---------------------------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 40px; }
.filter-btn {
  padding: 9px 22px; border-radius: 999px; cursor: pointer;
  border: 1px solid #D3DCE6; background: var(--white); color: var(--text-soft);
  font-size: 14px; font-family: inherit; transition: all .25s;
}
.filter-btn:hover { border-color: var(--accent); color: var(--teal-deep); }
.filter-btn.active { background: var(--navy-800); border-color: var(--navy-800); color: #fff; font-weight: 700; }

.sub-head {
  display: flex; align-items: center; gap: 14px; margin: 0 0 24px;
  padding-bottom: 14px; border-bottom: 2px solid var(--steel-100);
}
.sub-head h2 { margin: 0; font-size: 1.45rem; color: var(--navy-800); }
.sub-head .line { flex: 1; }
.sub-head .note { font-size: 13px; color: var(--text-soft); }

/* ---------------------------- 15. 产品详情 ---------------------------- */
.detail-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 44px; align-items: start; }
.detail-media .ph-block { min-height: 380px; }
.detail-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 12px; }
.detail-thumbs .ph-block { min-height: 82px; padding: .6rem; }
.detail-thumbs .ph-block .ph-icon { font-size: 1.1rem; }
.detail-thumbs .ph-block .ph-label { font-size: 11px; }
.detail-info h2 { color: var(--navy-800); }
.price-note {
  background: #F7F9FC; border-left: 4px solid var(--accent);
  padding: 14px 18px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px; color: var(--text-soft); margin: 18px 0 22px;
}

.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--steel-100); }
table.spec { width: 100%; border-collapse: collapse; background: #fff; font-size: 14px; }
table.spec th, table.spec td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--steel-100); }
table.spec thead th { background: var(--navy-800); color: #fff; font-weight: 700; white-space: nowrap; }
table.spec tbody tr:nth-child(even) { background: #FAFCFF; }
table.spec tbody tr:last-child td { border-bottom: 0; }

.app-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.app-tags li {
  background: var(--white); border: 1px solid var(--steel-100);
  border-radius: var(--radius-sm); padding: 10px 16px; font-size: 14px; color: var(--navy-700);
  box-shadow: 0 2px 8px rgba(11,37,69,.05);
}

/* ---------------------------- 16. 发展历程（阶段式，不标年份） ---------------------------- */
.ms-list { position: relative; max-width: 920px; margin: 0 auto; padding-left: 34px; }
.ms-list::before {
  content: ""; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(var(--steel-100), var(--accent), var(--steel-100));
}
.ms-item { position: relative; padding-bottom: 20px; }
.ms-item:last-child { padding-bottom: 0; }
.ms-item::before {
  content: ""; position: absolute; left: -34px; top: 24px;
  width: 12px; height: 12px; border-radius: 50%;
  background: #fff; border: 3px solid var(--accent);
}
.ms-body {
  background: var(--white); border: 1px solid var(--line); border-left: 3px solid var(--navy-700);
  border-radius: var(--radius); padding: 20px 24px; box-shadow: var(--shadow);
  transition: transform .28s, box-shadow .28s;
}
.ms-item:hover .ms-body { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(11,37,69,.10); }
.ms-tag {
  display: inline-block; margin-bottom: 8px; padding: 2px 10px; border-radius: 4px;
  background: var(--teal-light); color: var(--teal-deep);
  font-size: 12.5px; font-weight: 800; letter-spacing: .08em;
}
.ms-body h4 { margin: 0 0 8px; font-size: 16.6px; color: var(--navy-800); }
.ms-body p { margin: 0; font-size: 14px; line-height: 1.85; color: var(--text-soft); }

/* ---------------------------- 17. 联系我们 ---------------------------- */
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: stretch; }

.info-list { display: grid; gap: 18px; }
.info-item {
  display: flex; gap: 16px; background: var(--white); border-radius: var(--radius);
  padding: 20px 22px; box-shadow: var(--shadow);
}
.info-ico {
  flex: none; width: 46px; height: 46px; border-radius: 10px;
  background: var(--navy-800); color: #fff; font-weight: 800; font-size: 15px;
  display: flex; align-items: center; justify-content: center;
}
.info-item h4 { margin: 0 0 4px; font-size: 15px; color: var(--navy-800); }
.info-item p { margin: 0; font-size: 14px; color: var(--text-soft); }
.info-item a { color: var(--teal-deep); font-weight: 700; }

/* 四电话位 */
.tel-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.tel-card {
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px 20px; border-left: 4px solid var(--accent);
}
.tel-card .tel-role { font-size: 12.5px; color: var(--text-soft); margin-bottom: 2px; }
.tel-card .tel-num { font-size: 1.15rem; font-weight: 800; color: var(--navy-800); letter-spacing: .02em; }
.tel-card .tel-num a:hover { color: var(--accent); }

/* 四二维码位 */
.qr-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.qr-item { text-align: center; }
.qr-item .ph-block { aspect-ratio: 1 / 1; min-height: 0; padding: 1rem; }
.qr-item p { margin: 10px 0 0; font-size: 13.5px; color: var(--text-soft); font-weight: 600; }

.map-holder { margin-top: 30px; }
.map-holder .ph-block { min-height: 280px; }

/* ---------- 联系页：厂区位置 + 一键导航 ---------- */
.map-card {
  margin-top: 26px;
  background: #fff;
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--steel-100);
  box-shadow: var(--shadow);
}
.map-img { display: block; width: 100%; height: auto; }
.map-place {
  display: flex; align-items: center; gap: 13px;
  padding: 15px 22px; background: var(--navy-800); color: #fff;
}
.map-place-pin {
  flex: none; width: 12px; height: 12px; border-radius: 50%;
  background: #01A88B; box-shadow: 0 0 0 4px rgba(1, 168, 139, .28);
}
.map-place-txt { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.map-place-txt strong { font-size: 15.5px; font-weight: 700; letter-spacing: .3px; }
.map-place-txt em { font-style: normal; font-size: 12.5px; color: rgba(255, 255, 255, .72); }

.map-btns {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
  padding: 16px 22px 18px;
}
.map-btn {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 18px; border-radius: 10px;
  color: #fff; text-decoration: none;
  transition: transform .25s ease, box-shadow .25s ease, filter .25s ease;
}
.map-btn:hover, .map-btn:focus-visible { transform: translateY(-2px); filter: brightness(1.08); }
.map-btn-ico { flex: none; display: flex; align-items: center; }
.map-btn-txt { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.map-btn-txt strong { font-size: 15.5px; font-weight: 700; letter-spacing: .3px; }
.map-btn-txt em { font-style: normal; font-size: 11.5px; color: rgba(255, 255, 255, .84); }
.map-btn-amap { background: #0A84FF; box-shadow: 0 6px 16px rgba(10, 132, 255, .26); }
.map-btn-baidu { background: #2932E1; box-shadow: 0 6px 16px rgba(41, 50, 225, .24); }
.map-btn-amap:hover { box-shadow: 0 9px 22px rgba(10, 132, 255, .34); }
.map-btn-baidu:hover { box-shadow: 0 9px 22px rgba(41, 50, 225, .32); }

@media (max-width: 640px) {
  .map-place { padding: 13px 15px; gap: 11px; }
  .map-place-txt strong { font-size: 14px; }
  .map-place-txt em { font-size: 11.5px; }
  .map-btns { grid-template-columns: 1fr; gap: 10px; padding: 14px 15px 16px; }
  .map-btn { padding: 13px 15px; }
  .map-btn-txt strong { font-size: 15px; }
}

/* ---------- 联系页：左栏自动等高 + 右栏「咨询热线 / 到厂路线」 ---------- */
.contact-main { display: flex; flex-direction: column; }
.contact-main .info-list { flex: 1 1 auto; grid-auto-rows: minmax(88px, 1fr); }
.contact-main .info-item { align-items: center; }

.contact-aside .aside-h2 { color: var(--navy-800); margin: 42px 0 0; }
.contact-aside .aside-lead { margin: 8px 0 0; font-size: 13.5px; color: var(--text-soft); }
.contact-aside .map-card { margin-top: 16px; }

.route-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 16px; }
.route-cards .cat-card { padding: 17px 16px 15px; border-top-width: 3px; }
.route-cards .cat-card h3 { font-size: 14.5px; gap: 7px; margin: 0 0 7px; }
.route-cards .cat-num { font-size: 11.5px; padding: 2px 7px; }
.route-cards .cat-card p { font-size: 12.8px; line-height: 1.62; margin: 0; }

/* ---------------------------- 18. CTA 条 ---------------------------- */
.cta-band {
  position: relative; overflow: hidden;
  background: linear-gradient(110deg, var(--navy-800), var(--navy-600));
  color: #fff; padding: 52px 0;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0; opacity: .4;
  background-image: repeating-linear-gradient(115deg, rgba(255,255,255,.05) 0 2px, transparent 2px 8px);
}
.cta-inner {
  position: relative; z-index: 2;
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
}
.cta-inner h2 { color: #fff; margin: 0 0 6px; font-size: 1.6rem; }
.cta-inner p { margin: 0; color: #B9CBE0; }
.cta-tel { display: flex; flex-direction: column; gap: 10px; }
.cta-tel > span { font-size: 13px; color: #9DB3CC; }
/* 四个电话：两行两列，姓名在上、号码在下 */
.cta-tel-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 30px; }
.cta-tel-list a { display: flex; flex-direction: column; text-decoration: none; }
.cta-tel-list em { font-style: normal; font-size: 12px; color: #9DB3CC; }
.cta-tel-list strong { font-size: 1.24rem; color: #FF7A7A; letter-spacing: .02em; font-weight: 800; }
.cta-tel-list a:hover strong { color: #fff; }

/* ---------------------------- 19. FAQ ---------------------------- */
.faq { max-width: 900px; margin: 0 auto; display: grid; gap: 12px; }
.faq-item { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.faq-q {
  display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
  padding: 18px 22px; background: none; border: 0; cursor: pointer;
  font-family: inherit; font-size: 15.5px; font-weight: 700; color: var(--navy-800);
}
.faq-q .q-mark {
  flex: none; width: 24px; height: 24px; border-radius: 50%; background: var(--navy-800);
  color: #fff; font-size: 13px; display: flex; align-items: center; justify-content: center;
}
.faq-q .arrow { margin-left: auto; color: var(--steel-300); transition: transform .3s; }
.faq-item.open .faq-q .arrow { transform: rotate(180deg); color: var(--accent); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-item.open .faq-a { max-height: 420px; }
.faq-a-inner { padding: 0 22px 20px 58px; color: var(--text-soft); font-size: 14.2px; }
.faq-a-inner p:last-child { margin: 0; }

/* ---------------------------- 20. 页脚 ---------------------------- */
.site-footer { background: var(--navy-800); color: #BDD4EC; font-size: 14px; }
.footer-main {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 34px; padding: 56px 0 40px;
}
.footer-col h4 { color: #fff; font-size: 15.5px; margin-bottom: 16px; }
.footer-col p { font-size: 13.6px; line-height: 1.85; margin: 0 0 8px; }
.footer-col li { margin-bottom: 9px; }
.footer-col a:hover { color: #7FE3CE; }
.footer-logo {
  color: #fff; font-size: 1.25rem; font-weight: 800;
  padding-left: 10px; border-left: 4px solid var(--teal); margin-bottom: 14px;
}
.footer-tel { color: #7FE3CE; font-weight: 700; font-size: 1.05rem; }
.footer-bottom {
  background: var(--teal); border-top: 0; padding: 18px 0;
  font-size: 12.8px; color: #EAFBF6;
}
.footer-bottom .container { display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: space-between; }
.footer-bottom a { color: #EAFBF6; }

/* 返回顶部 */
.to-top {
  position: fixed; right: 24px; bottom: 26px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--navy-800); color: #fff; font-size: 18px;
  box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transition: .3s;
}
.to-top.show { opacity: 1; visibility: visible; }
.to-top:hover { background: var(--accent); }

/* ---------------------------- 21. 滚动入场动画 ---------------------------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------------------------- 22. 响应式 ---------------------------- */
@media (max-width: 1080px) {
  .logo-sub { display: none; }
  .hero h1 { font-size: 2.3rem; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute; left: 0; right: 0; top: var(--header-h);
    background: var(--navy-800); border-top: 1px solid rgba(255,255,255,.1);
    max-height: 0; overflow: hidden; transition: max-height .35s ease;
  }
  .main-nav.open { max-height: 460px; overflow: auto; }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 0; padding: 8px 12px 16px; }
  .main-nav a { padding: 13px 14px; border-radius: 6px; }
  .header-tel { display: none; }

  .hero-inner { grid-template-columns: 1fr; gap: 34px; }
  .hero { padding: 52px 0 60px; }
  .hero h1 { font-size: 2rem; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 24px 12px; }
  .stat + .stat::before { display: none; }
  .stat:nth-child(even)::before { content: ""; display: block; position: absolute; left: 0; top: 12%; height: 76%; width: 1px; background: rgba(255,255,255,.13); }

  .split { grid-template-columns: 1fr; gap: 28px; }
  .split--reverse .split-media { order: 0; }
  .detail-grid { grid-template-columns: 1fr; gap: 30px; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-main .info-list { flex: none; grid-auto-rows: auto; }
  .route-cards { grid-template-columns: 1fr; gap: 12px; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }

  /* 发展历程列表收窄 */
  .ms-list { padding-left: 28px; }
  .ms-item::before { left: -28px; top: 22px; }
  .ms-body { padding: 18px 18px; border-left-width: 3px; }
  .ms-body p { font-size: 13.8px; }
}

@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .section { padding: 52px 0; }
  .section-head { margin-bottom: 32px; }
  h1 { font-size: 1.8rem; }
  .hero h1 { font-size: 1.72rem; }
  .hero-lead { font-size: .98rem; }
  .page-hero h1 { font-size: 1.6rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .promise { grid-template-columns: 1fr; }
  .tel-cards { grid-template-columns: 1fr; }
  .qr-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr; gap: 26px; padding: 40px 0 28px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .cta-tel-list { grid-template-columns: 1fr; gap: 8px; }
  .btn { width: 100%; }
  .btn-row { width: 100%; }
  .detail-thumbs { grid-template-columns: repeat(2, 1fr); }
  .faq-a-inner { padding-left: 22px; }
}

/* ==========================================================================
   23. 实拍图上线的改版新增样式
   ========================================================================== */

/* ---------- Logo（图片版） ---------- */
.logo-img {
  display: block; width: 46px; height: 46px; flex: none;
  border-radius: 8px; object-fit: cover; background: #2B2B2B;
}
.logo-name {
  color: var(--navy-800); font-size: 1.34rem; font-weight: 800; line-height: 1.3;
  letter-spacing: .01em; max-width: 340px;
}
.footer-logo-img {
  display: block; width: 56px; height: 56px;
  border-radius: 10px; object-fit: cover; background: #2B2B2B; margin-bottom: 14px;
}

/* ---------- 产品详情：主图与缩略图 ---------- */
.detail-main {
  display: block; overflow: hidden; margin-bottom: 12px;
  border-radius: var(--radius); background: #EEF2F7; line-height: 0;
}
.detail-main img {
  display: block; width: 100%; height: auto;
  max-height: 620px; object-fit: cover; object-position: center;
}
.detail-thumb {
  display: block; position: relative; overflow: hidden; line-height: 0;
  border-radius: var(--radius-sm); background: #EEF2F7; aspect-ratio: 4 / 3;
}
.detail-thumb img {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  transition: transform .4s ease;
}
.detail-thumb:hover img { transform: scale(1.06); }

/* ---------- 首页顶部通栏大图 ---------- */
.top-banner { background: var(--navy-900); line-height: 0; }
.top-banner img {
  display: block; width: 100%; height: auto;
  max-height: 62vh; object-fit: cover; object-position: center 40%;
}
@media (max-width: 900px) {
  .top-banner img { max-height: 44vh; object-position: center 42%; }
}

/* ---------- 主视觉卡片图 ---------- */
.hero-card-media { display: block; border-radius: var(--radius-sm); overflow: hidden; }
.hero-card-media img { display: block; width: 100%; height: auto; }

/* ---------- 卡片图片 ---------- */
.card-media-link { display: block; overflow: hidden; background: #EEF2F7; }
.card-media-link img {
  display: block; width: 100%; height: 232px; object-fit: cover;
  transition: transform .45s ease;
}
.card:hover .card-media-link img { transform: scale(1.04); }

/* ---------- 通用图片网格 ---------- */
.gallery { display: grid; gap: 8px; }
.gallery--sm { grid-template-columns: repeat(auto-fill, minmax(98px, 1fr)); }
.gallery--md { grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; margin-top: 16px; }
.gallery-item {
  display: block; position: relative; overflow: hidden;
  border-radius: 6px; background: #EEF2F7; line-height: 0;
  aspect-ratio: 1 / 1;
}
.gallery-item img {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  transition: transform .4s ease;
}
.gallery--md .gallery-item { aspect-ratio: 4 / 3; }
.gallery-item::after {
  content: "放大"; position: absolute; right: 6px; bottom: 6px;
  color: #fff; font-size: 11px; line-height: 1.6;
  background: rgba(11, 37, 69, .62); padding: 0 7px; border-radius: 4px;
  opacity: 0; transition: opacity .25s;
}
.gallery-item:hover img, .gallery-item:focus-visible img { transform: scale(1.06); }
.gallery-item:hover::after, .gallery-item:focus-visible::after { opacity: 1; }

/* ---------- 首页产品体系：品类块 ---------- */
.pcat-list { display: grid; gap: 20px; }
.pcat {
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 22px 24px 18px; border-left: 4px solid var(--navy-700);
}
.pcat-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 6px; }
.pcat-head h3 {
  margin: 0; font-size: 1.12rem; color: var(--navy-800);
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.pcat-meta { margin-left: auto; font-size: 12.5px; color: var(--text-soft); white-space: nowrap; }
.pcat-desc { font-size: 13.8px; color: var(--text-soft); margin: 0 0 14px; }
.pcat-more {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 14px; color: var(--accent); font-weight: 700; font-size: 13.5px;
}
.pcat-more:hover { color: var(--teal-deep); }
.system-note {
  margin-top: 24px; background: #fff; border-left: 4px solid var(--steel-300);
  padding: 16px 20px; border-radius: 0 6px 6px 0;
  font-size: 14px; color: var(--text-soft);
}

/* ---------- 产品中心：顶部四大系列速览（方水箱 / 圆水箱 / 水箱模压板 / 一体机系列 四栏并排） ---------- */
.series-overview { padding-top: 4px; }
.series-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
}
.series-card {
  background: var(--bg-gray);
  border: 1px solid var(--steel-100);
  border-radius: 12px;
  padding: 18px 18px 14px;
}
.series-head { padding-bottom: 11px; border-bottom: 2px solid var(--navy-700); margin-bottom: 11px; }
.series-head h2 { margin: 0 0 6px; font-size: 1.16rem; color: var(--navy-800); }
.series-head p { margin: 0; font-size: 12.6px; line-height: 1.65; color: var(--text-soft); }
.series-list { display: flex; flex-direction: column; gap: 6px; }
.series-list li { margin: 0; }
.series-list a {
  display: flex; align-items: center; gap: 11px;
  padding: 6px 8px; border-radius: 8px; text-decoration: none; color: inherit;
  transition: background .2s ease, transform .2s ease;
}
.series-list a:hover { background: #fff; transform: translateX(2px); }
.series-thumb {
  flex: none; width: 62px; height: 46px; border-radius: 5px; overflow: hidden;
  background: #E9EEF5; line-height: 0;
}
.series-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.series-text { display: block; min-width: 0; }
.series-text b { display: block; font-size: 14px; font-weight: 700; color: var(--navy-800); }
.series-list a:hover .series-text b { color: var(--teal-deep); }
.series-text em { display: block; font-style: normal; font-size: 11.6px; color: var(--text-soft); margin-top: 2px; }

/* ---------- 产品中心：品类区块 ---------- */
.prod-group { padding-bottom: 0; }
.prod-block { border-top: 1px solid var(--steel-100); padding: 32px 0 6px; }
.prod-block:first-of-type { border-top: 0; padding-top: 0; }
.prod-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 8px; }
.prod-head h3 { margin: 0; font-size: 1.25rem; color: var(--navy-800); }
.prod-meta { margin-left: auto; font-size: 12.5px; color: var(--text-soft); white-space: nowrap; }
.prod-intro { font-size: 14px; color: var(--text-soft); margin: 0 0 12px; }
.prod-suitable { font-size: 13.5px; color: var(--text-soft); margin: 12px 0 0; }
.prod-suitable strong { color: var(--navy-800); }
.prod-block, .pcat { scroll-margin-top: calc(var(--header-h) + 18px); }
.spec-list--wide {
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 6px 22px; margin-bottom: 4px;
}

/* ---------- 小工具类 ---------- */
.soft-note { font-size: 13.5px; color: var(--text-soft); }
.eyebrow--plain {
  display: block; color: var(--accent); font-weight: 700;
  letter-spacing: .2em; font-size: .82rem; margin-bottom: .5rem;
}
.split-pic {
  display: block; overflow: hidden; border-radius: var(--radius);
  box-shadow: var(--shadow); line-height: 0; background: #EEF2F7;
}
.split-pic img { display: block; width: 100%; height: auto; transition: transform .5s ease; }
.split-pic:hover img { transform: scale(1.03); }
.notice {
  background: #F1F5FA; border-left: 4px solid var(--navy-600);
  color: var(--text-soft); padding: 16px 20px;
  border-radius: 0 6px 6px 0; font-size: 14px; margin-top: 34px;
}
.notice strong { color: var(--navy-800); }
.notice a { color: var(--teal-deep); font-weight: 700; }

/* ---------- 工序流程条 ---------- */
.flow { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.flow-step {
  display: flex; align-items: center; gap: 8px;
  background: var(--white); border: 1px solid var(--steel-100);
  box-shadow: var(--shadow); border-radius: 999px; padding: 7px 18px 7px 7px;
}
.flow-n {
  width: 26px; height: 26px; border-radius: 50%; flex: none;
  background: rgba(1, 168, 139, .13); color: var(--teal-deep);
  font-size: 12px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.flow-t { font-size: 14px; color: var(--navy-800); font-weight: 600; }

/* ---------- 占位（资质 / 二维码） ---------- */
.cert-card--ph .cert-ph { aspect-ratio: 3 / 4; min-height: 0; margin-bottom: 14px; }
.cert-card--ph h4 .ph-text { font-weight: 400; font-size: .82em; margin-left: 4px; }
.qr-ph { aspect-ratio: 1 / 1; min-height: 0; padding: 1rem; }

/* ---------- 图片灯箱 ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(6, 23, 41, .94);
  display: flex; align-items: center; justify-content: center;
  padding: 4vh 4vw;
}
.lightbox[hidden] { display: none; }
.lightbox-figure {
  margin: 0; max-width: 100%; max-height: 100%;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.lightbox-figure img {
  max-width: 100%; max-height: 78vh; width: auto; height: auto;
  border-radius: 8px; box-shadow: 0 20px 60px rgba(0, 0, 0, .5); background: #fff;
}
.lightbox-figure figcaption { color: #CBD9E8; font-size: 14px; text-align: center; }
.lightbox-close, .lightbox-nav {
  position: absolute; cursor: pointer;
  width: 46px; height: 46px; border-radius: 50%;
  background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .24);
  color: #fff; font-size: 22px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.lightbox-close { top: 20px; right: 20px; font-size: 26px; }
.lightbox-prev { left: 16px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 16px; top: 50%; transform: translateY(-50%); }
.lightbox-close:hover, .lightbox-nav:hover { background: var(--accent); border-color: var(--accent); }
body.lightbox-open { overflow: hidden; }

/* 四栏系列速览在中等屏宽下过挤，先落为两栏 */
@media (max-width: 1180px) {
  .series-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 22b. 改版响应式 ---------- */
@media (max-width: 900px) {
  .gallery--md { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .logo-name { font-size: .92rem; max-width: 200px; }
  .pcat-meta, .prod-meta { margin-left: 0; width: 100%; }
  .series-grid { grid-template-columns: 1fr; gap: 14px; }
  .series-card { padding: 16px 15px 12px; }
  .series-list { gap: 2px; }
  /* 窄屏下系列标题会被右侧说明挤成竖排，改为上下排列 */
  .sub-head { flex-direction: column; align-items: flex-start; gap: 7px; }
  .sub-head .line { display: none; }
}

@media (max-width: 640px) {
  .logo-img { width: 38px; height: 38px; }
  .logo-name { font-size: .82rem; max-width: 155px; }
  .gallery--sm { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: 6px; }
  .gallery--md { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .pcat { padding: 18px 16px; }
  .spec-list--wide { grid-template-columns: 1fr; }
  .card-media-link img { height: 200px; }
  .flow-step { padding: 6px 14px 6px 6px; }
  .flow-t { font-size: 13px; }
  .lightbox-nav { width: 38px; height: 38px; font-size: 18px; }
  .lightbox-prev { left: 6px; }
  .lightbox-next { right: 6px; }
}

/* ==========================================================================
   23. 版式改造新增组件（参考站版式 · 2026-09）
   说明：白底页头 + 蓝色通栏导航 + 轮播首屏 + 关键词条 + 产品中心网格
        + 青绿标语通栏 + 编号实力区块 + 左侧联系方式侧栏 + 内页横向标签
   ========================================================================== */

/* --------- 23.1 首屏 Banner 轮播 --------- */
.hero-slider { position: relative; height: 516px; overflow: hidden; background: var(--navy-800); }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; pointer-events: none;
  transition: opacity .9s ease;
}
.hero-slide.active { opacity: 1; pointer-events: auto; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; }
/* 遮罩：左侧文字区压深保证白字可读，右侧放透让产品照看得清
   （首屏图已换成明亮的产品实拍，右侧沿用旧的 .42/.55 会显得发闷） */
.hero-slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg,
    rgba(8, 52, 95, .92) 0%, rgba(8, 52, 95, .78) 38%,
    rgba(12, 68, 124, .32) 68%, rgba(8, 52, 95, .42) 100%);
}
.hero-cap { position: absolute; inset: 0; z-index: 2; display: flex; align-items: center; }
.hero-cap .container { width: 100%; }
.hero-cap h1, .hero-cap h2 { color: #fff; font-size: 2.55rem; margin: 0 0 14px; line-height: 1.24; }
.hero-cap h1 .hl, .hero-cap h2 .hl { color: #7FE3CE; }
.hero-cap p { color: #D2E5F7; font-size: 1.04rem; max-width: 620px; margin: 0 0 24px; }
.hero-cap .btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-certs {
  position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  z-index: 3; display: grid; gap: 13px; padding-right: 58px;
}
.hero-certs li { display: flex; align-items: center; gap: 10px; color: #EAF4FF; font-size: 14.4px; }
.hero-certs svg { flex: none; }

.hero-tagline {
  position: absolute; left: 0; bottom: 30px; z-index: 3;
  max-width: 62%;
  background: var(--teal); color: #fff; font-size: 15px; font-weight: 700;
  padding: 10px 30px 10px 24px; border-radius: 0 999px 999px 0;
}
.hero-dots {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  z-index: 4; display: flex; gap: 10px;
}
.hero-dots button {
  width: 12px; height: 12px; padding: 0; border: 0; border-radius: 50%;
  background: rgba(255, 255, 255, .5); cursor: pointer; transition: background .25s;
}
.hero-dots button.active { background: var(--teal); }
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 4;
  width: 42px; height: 64px; border: 0; cursor: pointer;
  background: rgba(8, 52, 95, .45); color: #fff; font-size: 22px; line-height: 1;
  transition: background .25s;
}
.hero-arrow:hover { background: var(--navy-700); }
.hero-arrow.prev { left: 0; border-radius: 0 6px 6px 0; }
.hero-arrow.next { right: 0; border-radius: 6px 0 0 6px; }

/* --------- 23.2 热门关键词条 --------- */
.hot-words { background: var(--navy-800); color: #B9D3EC; font-size: 13.6px; padding: 11px 0; }
.hot-words .container { display: flex; flex-wrap: wrap; align-items: center; gap: 7px 20px; }
.hot-words strong { color: #fff; font-weight: 700; flex: none; }
.hot-words a { color: #B9D3EC; }
.hot-words a:hover { color: #fff; text-decoration: underline; }

/* --------- 23.3 产品中心：左分类 + 右网格 --------- */
.pcenter { display: grid; grid-template-columns: 226px minmax(0, 1fr); gap: 26px; }
.pcenter-side {
  align-self: start; border: 1px solid var(--line);
  border-radius: var(--radius-sm); overflow: hidden; background: #fff;
}
.pcenter-side .ps-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 12px 16px; background: var(--navy-700); color: #fff;
}
.pcenter-side .ps-head h3 { margin: 0; font-size: 15.5px; color: #fff; }
.pcenter-side .ps-head a { font-size: 12.4px; color: #CFE3F6; }
.pcenter-side .ps-head a:hover { color: #fff; }
.pcenter-side li a {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 11px 16px; border-bottom: 1px solid var(--blue-50);
  font-size: 13.8px; color: var(--text);
}
.pcenter-side li:last-child a { border-bottom: 0; }
.pcenter-side li a:hover { background: var(--blue-50); color: var(--navy-700); }
.pcenter-side li a span { font-size: 12px; color: var(--steel-300); }

.pcenter-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.pcard {
  display: flex; flex-direction: column; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden;
  transition: transform .28s, box-shadow .28s, border-color .28s;
}
.pcard:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--navy-600); }
.pcard-media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--bg-gray); }
.pcard-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.pcard:hover .pcard-media img { transform: scale(1.05); }
.pcard-body { padding: 12px 10px; text-align: center; border-top: 1px solid var(--line); }
.pcard-body h4 { margin: 0; font-size: 14.2px; font-weight: 700; color: var(--navy-800); }
.pcard-body em { display: block; font-style: normal; font-size: 12px; color: var(--text-soft); margin-top: 5px; }
.pcard-tags { display: flex; flex-wrap: wrap; gap: 5px; justify-content: center; margin-top: 8px; }

/* --------- 23.4 青绿标语通栏 --------- */
.slogan-bar { background: var(--teal); color: #fff; text-align: center; padding: 28px 0; }
.slogan-bar h2 { margin: 0 0 6px; font-size: 1.72rem; color: #fff; }
.slogan-bar h2 b { color: #FFE9A8; }
.slogan-bar p {
  margin: 0; font-size: 12.6px; letter-spacing: .18em;
  color: #B8EEDF; text-transform: uppercase;
}

/* --------- 23.5 编号实力区块（图片与介绍分开 · 一行三项 + 第二行两项居中） ---------
   用 6 列栅格实现中轴对称：每个区块跨 2 列 → 第一行 3 个；
   第 4 个从第 2 列起、第 5 个从第 4 列起 → 第二行 2 个居中，左右各空 1 列。 */
.strength-list { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 34px 22px; }
.strength-item { grid-column: span 2; display: flex; flex-direction: column; }
.strength-item:nth-child(4) { grid-column: 2 / span 2; }
.strength-item:nth-child(5) { grid-column: 4 / span 2; }
.strength-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 9px; }
.strength-head b {
  flex: none; font-family: Arial, Helvetica, sans-serif;
  font-size: 1.7rem; font-weight: 700; line-height: 1; color: var(--teal);
}
.strength-head h3 { margin: 0; font-size: 1.06rem; color: var(--navy-800); }
.strength-text p { color: var(--text-soft); margin: 0 0 11px; font-size: 13.4px; line-height: 1.7; }
.strength-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.strength-tags li {
  background: var(--teal-light); color: #017360;
  font-size: 12px; padding: 5px 11px; border-radius: 999px;
}
/* 图片独立成块：不再与文字同处一个白底卡片，中间留 16px 间距 */
.strength-media {
  border-radius: 10px; overflow: hidden; margin-bottom: 16px;
  box-shadow: 0 3px 14px rgba(8, 52, 95, .10);
}
.strength-media img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; display: block; }

/* --------- 23.6 关于我们 + 资质一排 --------- */
.about-block { display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); gap: 44px; align-items: center; }
.about-block-media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
/* 配图改用「厂房外部」的横版合成图（16:9）。
   注意必须写 height:auto —— 否则 <img> 的 height 属性会把图片高度锁成 1280px。 */
.about-block-media img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.about-block-text h2 { color: var(--navy-800); }
.about-block-text p { color: var(--text-soft); }
.cert-row { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; margin-top: 40px; }
.cert-row .cert-card { box-shadow: var(--shadow); }

/* --------- 23.7 工程业绩（2026-09-18 用真实业绩表替换原「工程案例」） ---------
   页面不配工程现场照：公开网络找不到本公司的项目实拍，能搜到的同类图多属同行厂家，
   直接使用会侵权且会误导访客。改为「重点工程卡片 + 业绩清单表」的信息型版式。 */
.perf-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.perf-card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-left: 3px solid var(--navy-700); border-radius: var(--radius);
  padding: 20px 22px 0; transition: transform .28s, box-shadow .28s, border-left-color .28s;
}
.perf-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-left-color: var(--teal); }
.perf-rank {
  position: absolute; top: 14px; right: 18px; font-size: 26px; font-weight: 700;
  line-height: 1; color: var(--navy-700); opacity: .16; font-variant-numeric: tabular-nums;
}
.perf-tag {
  display: inline-block; margin-bottom: 9px; padding: 2px 10px; border-radius: 999px;
  font-size: 11.6px; letter-spacing: .04em; color: var(--navy-700); background: var(--blue-50);
}
.perf-card h3 { margin: 0 0 5px; padding-right: 36px; font-size: 16.2px; line-height: 1.5; color: var(--navy-800); }
.perf-org { margin: 0 0 14px; font-size: 13px; color: var(--text-soft); }
.perf-spec {
  display: flex; gap: 16px; margin: 0; padding: 13px 0 15px;
  list-style: none; border-top: 1px dashed var(--line);
}
.perf-spec li { flex: 1 1 0; min-width: 0; }
.perf-spec span { display: block; margin-bottom: 2px; font-size: 11.8px; color: var(--text-soft); }
.perf-spec strong { font-size: 14.2px; color: var(--navy-800); font-variant-numeric: tabular-nums; }

.perf-block { margin-top: 44px; }
.perf-block .sub-head { margin-bottom: 18px; }
.perf-table-wrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.perf-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.perf-table th, .perf-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--line); }
.perf-table thead th {
  background: var(--navy-800); color: #fff; font-weight: 600; font-size: 13.6px; white-space: nowrap;
}
.perf-table td { color: var(--text-soft); }
.perf-table td:nth-child(2), .perf-table td:nth-child(3) { color: var(--text); }
.perf-table tbody tr:nth-child(even) { background: #FAFBFD; }
.perf-table tbody tr:hover { background: var(--blue-50); }
.perf-table tbody tr:last-child td { border-bottom: 0; }
.perf-table td:first-child { width: 64px; color: var(--navy-700); font-weight: 700; font-variant-numeric: tabular-nums; }
.perf-table td:nth-child(4) { white-space: nowrap; font-variant-numeric: tabular-nums; }
.perf-table td:last-child {
  width: 90px; text-align: right; white-space: nowrap; font-weight: 700; color: var(--navy-800);
}
.perf-table--client td:last-child { width: auto; text-align: left; }
.perf-note { margin: 26px 0 0; text-align: center; font-size: 13.4px; color: var(--text-soft); }
.perf-note a, .section-head p a { color: var(--navy-700); font-weight: 600; border-bottom: 1px solid currentColor; }
.perf-note a:hover, .section-head p a:hover { color: var(--teal-dark); }

/* 窄屏：业绩表由「表格」改为「一条一张卡」，避免 5 列在手机上挤压 */
@media (max-width: 760px) {
  .perf-table thead { display: none; }
  .perf-table, .perf-table tbody, .perf-table tr, .perf-table td { display: block; width: 100%; }
  .perf-table tr { padding: 14px 16px; border-bottom: 1px solid var(--line); }
  .perf-table tr:last-child { border-bottom: 0; }
  .perf-table tbody tr:nth-child(even) { background: #FAFBFD; }
  .perf-table td {
    display: flex; gap: 12px; width: auto; padding: 0; border: 0;
    font-size: 13.6px; text-align: left;
  }
  .perf-table td + td { margin-top: 6px; }
  .perf-table td::before {
    content: attr(data-label); flex: 0 0 68px; font-size: 12.6px; color: var(--steel-500);
  }
  .perf-table td:first-child { display: none; }
  .perf-table td:nth-child(2) { font-size: 15px; font-weight: 700; color: var(--navy-800); }
  .perf-table td:nth-child(2)::before { display: none; }
  .perf-table td:last-child { width: auto; text-align: left; }
}

/* --------- 23.7b 首页：企业实力 + 右侧联系方式侧栏（照参考站） --------- */
.strength-layout { display: grid; grid-template-columns: minmax(0, 1fr) 246px; gap: 30px; align-items: start; }
.strength-layout > .side-contact { top: 158px; }
/* 侧栏是白色底，必须覆盖 .btn-ghost 的「白字白边」——那套配色只适用于轮播深色底 */
.side-contact .btn-ghost { border-color: var(--navy-700); color: var(--navy-700); }
.side-contact .btn-ghost:hover { background: var(--blue-50); border-color: var(--navy-800); color: var(--navy-800); }

/* --------- 23.8 内页：左侧联系方式侧栏 --------- */
.layout-side { display: grid; grid-template-columns: 246px minmax(0, 1fr); gap: 30px; align-items: start; }
.side-contact {
  position: sticky; top: 158px;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  overflow: hidden; background: #fff;
}
.side-contact > h3 {
  margin: 0; padding: 13px 18px; background: var(--teal); color: #fff; font-size: 15.5px;
}
.side-contact-body { padding: 16px 18px 20px; }
.side-contact-body .sc-name { font-weight: 700; color: var(--navy-800); font-size: 14.2px; margin-bottom: 4px; }
.sc-tel { display: grid; gap: 9px; margin: 14px 0 16px; }
.sc-tel a { display: flex; flex-direction: column; }
.sc-tel em { font-style: normal; font-size: 12px; color: var(--text-soft); }
.sc-tel strong { font-size: 1.14rem; color: var(--navy-700); letter-spacing: .02em; }
.sc-tel a:hover strong { color: var(--accent); }
.sc-info { font-size: 13.2px; color: var(--text-soft); line-height: 1.8; border-top: 1px solid var(--blue-50); padding-top: 14px; }
.sc-info b { color: var(--text); font-weight: 700; }
.sc-work { margin-top: 10px; font-size: 13.2px; color: var(--text-soft); }
.sc-work b { color: var(--teal); }
.sc-actions { margin-top: 16px; display: grid; gap: 9px; }
.sc-actions .btn { width: 100%; padding: 10px 14px; font-size: 14px; }

/* --------- 23.9 内页：横向标签条 --------- */
.page-tabs {
  display: flex; flex-wrap: wrap; margin-bottom: 30px;
  background: var(--bg-gray); border-bottom: 2px solid var(--navy-700);
}
.page-tabs a { padding: 12px 24px; font-size: 14.4px; color: var(--text-soft); }
.page-tabs a:hover { color: var(--navy-700); }
.page-tabs a.active { background: var(--navy-700); color: #fff; font-weight: 700; }

/* --------- 23.10 覆盖：浅色区块与线条风格 --------- */
.section--lined { border-top: 1px solid var(--line); }
.section-head--left { max-width: none; text-align: left; margin-left: 0; }
.section-head--left h2::after { left: 0; transform: none; }

/* --------- 23.11 版式改造响应式 --------- */
@media (max-width: 1080px) {
  .pcenter { grid-template-columns: minmax(0, 1fr); }
  .pcenter-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero-slider { height: 448px; }
  .hero-cap h1, .hero-cap h2 { font-size: 2.05rem; }
  .hero-certs { display: none; }
  .layout-side { grid-template-columns: minmax(0, 1fr); }
  .strength-layout { grid-template-columns: minmax(0, 1fr); }
  .side-contact { position: static; }
  .cert-row { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .perf-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .header-top { height: auto; flex-wrap: wrap; padding: 12px 0; gap: 12px; }
  .header-tel { margin-left: auto; padding-left: 16px; }
  .header-tel strong { font-size: 1.16rem; }
  .search-box { order: 3; flex: 1 1 100%; max-width: none; margin: 0; }
  .main-nav li { flex: 1 0 auto; }
  .main-nav a { padding: 13px 14px; font-size: 14.6px; }
  .strength-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 18px; }
  .strength-item, .strength-item:nth-child(4), .strength-item:nth-child(5) { grid-column: auto; }
  .strength-item:nth-child(5) { grid-column: 1 / -1; width: calc(50% - 9px); justify-self: center; }
  .about-block { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .hero-slider { height: 400px; }
  /* 首屏图是两张产品照横排的宽幅长图（2880×1032）。窄屏按高度填满后只剩约四成宽度
     可见，默认居中取窗会正好切在两张图的接缝上；改为左对齐，完整露出左边一整张。 */
  .hero-slide img { object-position: left center; }
  /* 窄屏画面只露出很窄一条，且整幅都落在遮罩最强区，产品照会被压到发黑；
     改竖向渐变，在标题与按钮之间的空档处减淡，透出产品轮廓 */
  .hero-slide::after {
    background: linear-gradient(180deg,
      rgba(8, 52, 95, .84) 0%, rgba(8, 52, 95, .58) 52%, rgba(8, 52, 95, .84) 100%);
  }
  .hero-cap h1, .hero-cap h2 { font-size: 1.7rem; }
  .hero-tagline { font-size: 13.4px; padding: 8px 22px 8px 18px; max-width: 78%; bottom: 22px; }
}

@media (max-width: 640px) {
  .main-nav ul { flex-wrap: wrap; }
  .main-nav li { flex: 1 0 33.333%; }
  .main-nav a { font-size: 13.4px; padding: 11px 4px; }
  .pcenter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .cert-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .perf-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-slider { height: 356px; }
  .hero-cap h1, .hero-cap h2 { font-size: 1.36rem; margin-bottom: 10px; }
  .hero-cap p { font-size: .94rem; margin-bottom: 16px; }
  .hero-dots { bottom: 16px; }
  .hero-arrow { display: none; }
  .hot-words { font-size: 12.6px; }
  .slogan-bar h2 { font-size: 1.24rem; }
  .slogan-bar p { font-size: 11.4px; letter-spacing: .1em; }
  .strength-list { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .strength-item:nth-child(5) { grid-column: auto; width: auto; }
  .strength-head b { font-size: 1.6rem; }
  .strength-head h3 { font-size: 1.04rem; }
  .pcard-body h4 { font-size: 13.2px; }
}

/* ==========================================================================
   24. 关于我们 · 生产实力（纯文字版：三条产品线 + 品质控制）
   ========================================================================== */

.mfg-lines { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }

.mfg-card {
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow);
  border-top: 4px solid var(--teal);
  padding: 24px 24px 22px; display: flex; flex-direction: column;
}
.mfg-card h3 { margin: 0 0 8px; font-size: 1.08rem; color: var(--navy-800); }
.mfg-spec { margin: 0 0 18px; font-size: 12.5px; line-height: 1.64; color: var(--text-soft); }

.mfg-label {
  margin: 0 0 12px; font-size: 12px; font-weight: 800; letter-spacing: .14em;
  color: var(--teal-deep);
}
.mfg-label::before {
  content: ""; display: inline-block; width: 14px; height: 2px; margin-right: 8px;
  vertical-align: 4px; background: var(--teal);
}

.flow-steps { counter-reset: fs; list-style: none; margin: 0 0 18px; padding: 0; }
.flow-steps li {
  position: relative; padding: 0 0 13px 30px;
  font-size: 13.1px; line-height: 1.62; color: var(--text-soft);
}
.flow-steps li::before {
  counter-increment: fs; content: counter(fs);
  position: absolute; left: 0; top: 2px;
  width: 19px; height: 19px; border-radius: 50%;
  background: var(--teal-light); color: var(--teal-deep);
  font-size: 11px; font-weight: 800; line-height: 19px; text-align: center;
}
.flow-steps li::after {
  content: ""; position: absolute; left: 9px; top: 25px; bottom: 3px;
  width: 1px; background: var(--steel-100);
}
.flow-steps li:last-child { padding-bottom: 0; }
.flow-steps li:last-child::after { display: none; }
.flow-steps li b { color: var(--navy-800); font-weight: 700; }

.mfg-feat {
  margin: auto 0 0; padding-top: 15px; border-top: 1px dashed var(--line);
  display: grid; gap: 8px;
}
.mfg-feat li { position: relative; padding-left: 15px; font-size: 12.7px; line-height: 1.62; color: var(--text-soft); }
.mfg-feat li::before {
  content: ""; position: absolute; left: 0; top: 7px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--teal);
}

/* ---------- 品质控制横条 ---------- */
.qc-band {
  margin-top: 24px; padding: 28px 30px 30px;
  background: var(--navy-800); border-radius: var(--radius); box-shadow: var(--shadow-lg);
}
.qc-band h3 { margin: 0 0 18px; font-size: 1.06rem; color: #fff; }
.qc-band h3::before {
  content: ""; display: inline-block; width: 4px; height: 16px; margin-right: 10px;
  vertical-align: -2px; border-radius: 2px; background: var(--teal);
}
.qc-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px 24px; }
.qc-item b { display: block; margin-bottom: 6px; font-size: 13.6px; color: #fff; }
.qc-item p { margin: 0; font-size: 12.6px; line-height: 1.68; color: rgba(255, 255, 255, .76); }

@media (max-width: 1080px) {
  .mfg-lines { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mfg-lines > :nth-child(3) { grid-column: 1 / -1; }
  .qc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
}

@media (max-width: 640px) {
  .mfg-lines { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .mfg-lines > :nth-child(3) { grid-column: auto; }
  .mfg-card { padding: 20px 18px 18px; }
  .qc-band { padding: 22px 18px 24px; }
  .qc-grid { grid-template-columns: minmax(0, 1fr); gap: 18px; }
}

/* ==========================================================================
   25. 公司发文（列表页 + 详情页）
   说明：列表 = 搜索框 + 三栏卡片（无分类）；详情 = 正文 1fr + 右侧侧栏 300px
   ========================================================================== */

/* ---------- 25.1 文章搜索 ---------- */
.art-search {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  margin-bottom: 34px;
}
.art-search-field { position: relative; flex: 1; min-width: 260px; max-width: 560px; }
.art-search-field input {
  width: 100%; padding: 12px 44px;
  font-family: inherit; font-size: 14.5px; color: var(--text);
  background: var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23888780' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M20 20l-4.2-4.2'/%3E%3C/svg%3E") no-repeat 17px center;
  background-size: 17px 17px;
  border: 1px solid #D3DCE6; border-radius: 999px;
  transition: border-color .25s, box-shadow .25s;
}
.art-search-field input::placeholder { color: var(--steel-300); }
.art-search-field input:focus {
  outline: none; border-color: var(--navy-700);
  box-shadow: 0 0 0 3px rgba(20, 102, 177, .12);
}
.art-search-clear {
  position: absolute; right: 9px; top: 50%; transform: translateY(-50%);
  width: 26px; height: 26px; padding: 0; border: 0; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--steel-100); color: var(--steel-700);
  font-family: inherit; font-size: 15px; line-height: 1; cursor: pointer;
  transition: background-color .2s, color .2s;
}
.art-search-clear:hover { background: var(--steel-500); color: #fff; }
.art-search-clear[hidden] { display: none; }
.art-search-tip { margin: 0; font-size: 13.5px; color: var(--steel-500); }
.art-search-tip b { padding: 0 2px; font-weight: 700; color: var(--navy-800); }

/* ---------- 25.2 列表卡片 ---------- */
.art-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px; align-items: stretch;
}
.art-card {
  display: flex; background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
  border-top: 4px solid var(--teal);
  transition: transform .28s, box-shadow .28s;
}
.art-card[hidden] { display: none !important; }
.art-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.art-card > a { display: flex; flex-direction: column; width: 100%; }

.art-card-media { overflow: hidden; background: var(--steel-100); }
.art-card-media img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; transition: transform .5s; }
.art-card:hover .art-card-media img { transform: scale(1.05); }

.art-card-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.art-card-meta {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 10px; font-size: 12.5px; color: var(--steel-500);
}
.art-hit {
  margin: 0 0 14px; padding: 8px 12px;
  background: var(--bg-gray); border-left: 3px solid var(--steel-300);
  border-radius: 0 4px 4px 0;
  font-size: 12.6px; line-height: 1.7; color: var(--text-soft);
}
.art-card-title {
  margin: 0 0 8px; font-size: 1.02rem; line-height: 1.52; color: var(--navy-800);
  transition: color .25s;
}
.art-card:hover .art-card-title { color: var(--navy-700); }
.art-card-sum {
  margin: 0 0 16px; font-size: 13.4px; line-height: 1.72; color: var(--text-soft);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.art-card-more { margin-top: auto; font-size: 13.5px; font-weight: 700; color: var(--accent); }
.art-card:hover .art-card-more { color: var(--teal-deep); }

.art-empty { text-align: center; color: var(--text-soft); padding: 46px 0; margin: 0; }

/* ---------- 25.3 详情页骨架 ---------- */
.art-meta {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-top: 4px; font-size: 13.5px; color: #B9CBE0;
}
.art-meta span { color: #6A87A8; }

.art-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 44px; align-items: start; }
.art-main { min-width: 0; }

.art-cover {
  margin: 0 0 26px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
}
.art-cover img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }

/* ---------- 25.4 正文排版 ---------- */
.art-body { font-size: 15.2px; line-height: 1.9; color: var(--text); }
.art-body > :last-child { margin-bottom: 0; }
.art-body h2 {
  margin: 34px 0 14px; padding-left: 14px; font-size: 1.35rem;
  color: var(--navy-800); border-left: 4px solid var(--teal);
}
.art-body h2:first-child { margin-top: 0; }
.art-body h3 { margin: 24px 0 10px; font-size: 1.08rem; color: var(--navy-700); }
.art-body p { margin: 0 0 1.1em; }
.art-body ul, .art-body ol { margin: 0 0 1.2em; padding-left: 24px; }
.art-body ul { list-style: disc; }
.art-body ol { list-style: decimal; }
.art-body li { margin-bottom: 7px; }
.art-body li::marker { color: var(--teal); }
.art-body strong, .art-body b { color: var(--navy-800); }

.art-note {
  margin: 0 0 1.3em; padding: 14px 18px;
  background: var(--teal-light); border-left: 4px solid var(--teal);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px; line-height: 1.75; color: var(--teal-deep);
}
.art-note kbd { background: #fff; }

.art-table {
  margin: 0 0 1.4em; overflow-x: auto;
  border: 1px solid var(--steel-100); border-radius: var(--radius);
}
.art-table table { width: 100%; border-collapse: collapse; background: #fff; font-size: 14px; }
.art-table th, .art-table td { padding: 11px 15px; text-align: left; border-bottom: 1px solid var(--steel-100); }
.art-table thead th { background: var(--navy-800); color: #fff; font-weight: 700; white-space: nowrap; }
.art-table tbody tr:nth-child(even) { background: #FAFCFF; }
.art-table tbody tr:last-child td { border-bottom: 0; }

/* ---------- 25.5 标签 / 常见问题 ---------- */
.art-tags {
  display: flex; flex-wrap: wrap; gap: 9px;
  margin-top: 32px; padding-top: 22px; border-top: 1px dashed var(--line);
}
.art-tag {
  font-size: 12.5px; line-height: 1.7; padding: 4px 12px;
  background: var(--bg-gray); border: 1px solid var(--steel-100);
  border-radius: 999px; color: var(--steel-700);
}

.art-faq { margin-top: 36px; }
.art-faq > h2 {
  margin: 0 0 18px; padding-bottom: 12px; font-size: 1.4rem;
  color: var(--navy-800); border-bottom: 2px solid var(--steel-100);
}
.art-faq-item {
  margin-bottom: 14px; padding: 18px 20px;
  background: var(--white); border: 1px solid var(--steel-100);
  border-left: 4px solid var(--teal); border-radius: var(--radius-sm);
}
.art-faq-item:last-child { margin-bottom: 0; }
.art-faq-q { margin: 0 0 8px; font-size: 1rem; line-height: 1.6; color: var(--navy-800); }
.art-faq-item p { margin: 0; font-size: 14px; line-height: 1.78; color: var(--text-soft); }

/* ---------- 25.6 右侧侧栏 ---------- */
.art-side { position: sticky; top: calc(var(--header-h) + 20px); }
.art-side-card {
  margin-bottom: 18px; padding: 20px 20px 18px;
  background: var(--white); border: 1px solid var(--steel-100);
  border-radius: var(--radius); box-shadow: 0 2px 10px rgba(11, 37, 69, .05);
}
.art-side-card:last-child { margin-bottom: 0; }
.art-side-card h3 {
  margin: 0 0 13px; padding-bottom: 10px; font-size: 1rem;
  color: var(--navy-800); border-bottom: 2px solid var(--steel-100);
}
.art-side-card ul { display: grid; gap: 10px; }
.art-side-card li { font-size: 13.6px; line-height: 1.6; }
.art-side-card li a { display: block; color: var(--navy-700); }
.art-side-card li a:hover { color: var(--accent); }
.art-side-card li span { display: block; margin-top: 2px; font-size: 12px; color: var(--steel-500); }

.art-side-tel {
  border: 0; text-align: center;
  background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
  box-shadow: 0 10px 28px rgba(8, 52, 95, .28);
}
.art-side-tel h3 { color: #fff; border-bottom-color: rgba(255, 255, 255, .22); }
.art-side-tel p { margin: 0 0 6px; font-size: 13px; line-height: 1.7; color: #B9CBE0; }
.art-side-tel strong {
  display: block; margin: 2px 0 8px;
  font-size: 1.5rem; letter-spacing: .04em; color: #fff;
}

/* ---------- 25.7 响应式 ---------- */
@media (max-width: 1080px) {
  .art-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .art-layout { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .art-side { position: static; }
  .art-side-card { margin-bottom: 16px; }
}

@media (max-width: 640px) {
  .art-search { gap: 10px; margin-bottom: 24px; }
  .art-search-field { min-width: 100%; }
  .art-search-field input { padding: 11px 40px; font-size: 14px; }
  .art-grid { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .art-card-body { padding: 16px 16px 18px; }
  .art-body { font-size: 15px; line-height: 1.86; }
  .art-body h2 { margin-top: 28px; font-size: 1.2rem; }
  .art-faq-item { padding: 16px 15px; }
  .art-table th, .art-table td { padding: 9px 11px; }
}