@charset "utf-8";
/* ==========================================================================
   南通宇若包装材料有限公司 — 企业站视觉稿
   设计语言参考：ntkdbz.cn（墨绿主色 + 大图 banner + 白底卡片网格）
   CSS 全部变量化，换色只需改 :root
   ========================================================================== */

:root{
  --brand:      #1F5CB8;   /* 主色 深墨绿 */
  --brand-600:  #2E6FCB;   /* 主色亮 */
  --brand-900:  #123258;   /* 主色暗 */
  --brand-50:   #EAF1FA;
  --accent:     #C9A96A;   /* 点缀金 */

  --ink:        #1A1A1A;
  --ink-2:      #4A4F4D;
  --muted:      #8B918E;
  --line:       #E8EBE9;
  --bg:         #FFFFFF;
  --bg-soft:    #F6F8F7;

  --radius:     3px;
  --container:  1240px;
  --ease:       .35s cubic-bezier(.25,.8,.25,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:15px/1.9 "Microsoft YaHei","PingFang SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
input,button,textarea{font-family:inherit;font-size:inherit}

/* ---------- 通用布局 ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section--soft{background:var(--bg-soft)}
.section--dark{background:var(--brand);color:#fff}

/* 区块标题：中文大标题 + 英文小字 + 短横线 */
.sec-head{text-align:center;margin-bottom:48px}
.sec-head h2{font-size:30px;font-weight:700;letter-spacing:.02em;color:var(--ink);line-height:1.3}
.sec-head .en{display:block;margin-top:8px;font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--muted)}
.sec-head .line{display:block;width:40px;height:2px;background:var(--brand-600);margin:16px auto 0}
.section--dark .sec-head h2{color:#fff}
.section--dark .sec-head .en{color:rgba(255,255,255,.5)}
.section--dark .sec-head .line{background:var(--accent)}
.sec-head--left{text-align:left}
.sec-head--left .line{margin-left:0}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 30px;border:1px solid var(--brand);background:var(--brand);color:#fff;
  font-size:14px;letter-spacing:.06em;cursor:pointer;border-radius:var(--radius);
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.btn:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.btn--ghost{background:transparent;color:var(--brand)}
.btn--ghost:hover{background:var(--brand);color:#fff}
.btn--light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn--light:hover{background:#fff;border-color:#fff;color:var(--brand)}
.btn--sm{padding:9px 22px;font-size:13px}

/* 图片容器：无图时显示渐变占位，有图时自适应缩放不裁剪 */
.media{position:relative;overflow:hidden;background:var(--ph,linear-gradient(135deg,#DCE5E1,#C3D2CC))}
.media>img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.25,.8,.25,1)}
.media--16x10::before{content:"";display:block;padding-top:62.5%}
.media--1x1::before{content:"";display:block;padding-top:100%}
.media--16x9::before{content:"";display:block;padding-top:56.25%}
.media--3x2::before{content:"";display:block;padding-top:66.66%}
.media>img{position:absolute;inset:0}

/* ==========================================================================
   HEADER
   ========================================================================== */
/* 顶部导航：吸顶固定，页面下拉时导航不动（参考站同款） */
.header{
  position:sticky;top:0;z-index:1050;background:#fff;box-shadow:0 1px 0 var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.header.is-stuck{box-shadow:0 8px 24px rgba(8,24,44,.10)}
.header__inner{display:flex;align-items:center;gap:36px;height:86px}

.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.logo__mark{
  width:46px;height:46px;flex:0 0 46px;border-radius:var(--radius);
  background:linear-gradient(135deg,var(--brand),var(--brand-600));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:700;letter-spacing:.04em;
}
.logo__txt b{display:block;font-size:19px;font-weight:700;letter-spacing:.04em;line-height:1.25}
.logo__txt span{display:block;font-size:10px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase}

.nav{flex:1 1 auto}
.nav__list{display:flex;align-items:center;gap:4px}
.nav__item{position:relative}
.nav__item>a{display:block;padding:0 18px;line-height:86px;font-size:15px;color:var(--ink-2);white-space:nowrap}
.nav__item>a:hover,.nav__item.is-active>a{color:var(--brand)}
.nav__item.is-active>a{font-weight:400}
.nav__item::after{
  content:"";position:absolute;left:18px;right:18px;bottom:24px;height:2px;
  background:var(--brand-600);transform:scaleX(0);transition:transform var(--ease);
}
.nav__item:hover::after,.nav__item.is-active::after{transform:scaleX(1)}

.nav__drop{
  position:absolute;top:86px;left:0;min-width:180px;background:#fff;
  border-top:2px solid var(--brand-600);box-shadow:0 8px 26px rgba(0,0,0,.09);
  padding:8px 0;opacity:0;visibility:hidden;transform:translateY(6px);
  transition:all var(--ease);
}
.nav__item:hover .nav__drop{opacity:1;visibility:visible;transform:translateY(0)}
.nav__drop a{display:block;padding:9px 20px;font-size:14px;color:var(--ink-2)}
.nav__drop a:hover{background:var(--brand-50);color:var(--brand)}

/* 产品中心：分组式大菜单（二级品类 + 三级子菜单）；居中于菜单项，JS 做视口边界校正 */
.nav__drop--mega{
  position:absolute;top:86px;left:50%;min-width:0;
  width:min(920px,calc(100vw - 48px));
  display:grid;grid-template-columns:repeat(5,1fr);
  padding:22px 4px 26px;opacity:0;visibility:hidden;transform:translate(-50%,6px);
}
.nav__item--mega:hover .nav__drop--mega{opacity:1;visibility:visible;transform:translate(-50%,0)}
.nav__col{padding:0 20px;border-left:1px solid var(--line)}
.nav__col:first-child{border-left:0}
.nav__col-t{display:block;padding:0 0 10px;font-size:15px;color:var(--ink)}
.nav__col-t:hover{background:transparent;color:var(--brand)}
.nav__col a:not(.nav__col-t){padding:7px 0;font-size:13.5px;color:var(--ink-2)}
.nav__col a:not(.nav__col-t):hover{background:transparent;color:var(--brand)}

.header__side{display:flex;align-items:center;gap:20px;flex:0 0 auto}
.search{display:flex;align-items:center;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--bg-soft)}
.search input{border:0;background:transparent;padding:9px 12px;width:130px;outline:none;font-size:13px}
.search button{border:0;background:transparent;padding:9px 12px;cursor:pointer;color:var(--muted);display:flex}
.search button:hover{color:var(--brand)}
.tel{display:flex;align-items:center;gap:9px;color:var(--brand)}
.tel svg{flex:0 0 auto}
.tel b{font-size:17px;font-weight:700;letter-spacing:.01em;line-height:1.1;display:block}
.tel i{font-style:normal;font-size:10px;color:var(--muted);letter-spacing:.14em;display:block}

.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:var(--radius);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink)}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{position:relative;height:660px;overflow:hidden;background:var(--brand-900)}
.hero__bg{position:absolute;inset:0}
.hero__bg img{width:100%;height:100%;object-fit:cover}
.hero__mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,24,44,.78) 0%,rgba(8,24,44,.42) 46%,rgba(8,24,44,.16) 100%)}
.hero__inner{position:relative;height:100%;display:flex;align-items:center}
.hero__box{max-width:640px;color:#fff}
.hero__eyebrow{font-size:12px;letter-spacing:.3em;text-transform:uppercase;color:rgba(255,255,255,.68);margin-bottom:20px}
.hero__box h1{font-size:48px;line-height:1.28;font-weight:700;letter-spacing:.02em;margin-bottom:22px}
.hero__box p{font-size:16px;line-height:1.95;color:rgba(255,255,255,.82);margin-bottom:36px;max-width:560px}

/* 数据条 */
.stats{display:flex;gap:0;flex-wrap:wrap;margin-top:34px}
.stats__item{flex:1 1 0;min-width:120px;padding-right:24px}
.stats__item+.stats__item{padding-left:24px;border-left:1px solid var(--line)}
.stats__num{font-size:34px;font-weight:700;color:var(--brand);line-height:1.2;letter-spacing:.01em}
.stats__num em{font-style:normal;font-size:16px;font-weight:400;color:var(--ink-2);margin-left:3px}
.stats__label{font-size:13px;color:var(--muted);letter-spacing:.04em;margin-top:4px}
.section--dark .stats__item+.stats__item{border-color:rgba(255,255,255,.16)}
.section--dark .stats__num{color:#fff}
.section--dark .stats__label{color:rgba(255,255,255,.6)}

/* ==========================================================================
   ABOUT
   ========================================================================== */
.about{display:grid;grid-template-columns:1fr 1.02fr;gap:64px;align-items:center}
.about__body p{color:var(--ink-2);margin-bottom:16px;text-align:justify}
.about__body .lead{color:var(--ink);font-size:16px}
.about__pic{position:relative}
.about__pic .media{height:420px}
.about__badge{
  position:absolute;left:-26px;bottom:-26px;background:var(--brand);color:#fff;
  padding:22px 28px;border-radius:var(--radius);min-width:180px;
}
.about__badge b{display:block;font-size:30px;line-height:1.1;font-weight:700}
.about__badge span{display:block;font-size:12px;color:rgba(255,255,255,.72);letter-spacing:.1em;margin-top:6px}

/* ==========================================================================
   PRODUCT CATEGORIES
   ========================================================================== */
.cats{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
.cat{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:all var(--ease);display:block;
}
.cat:hover{border-color:var(--brand-600);box-shadow:0 12px 30px rgba(31,92,184,.12);transform:translateY(-4px)}
.cat .media{height:250px}
.cat:hover .media>img{transform:scale(1.06)}
.cat__body{padding:24px 20px 26px}
.cat__body b{display:block;font-size:17px;font-weight:400;margin-bottom:8px;line-height:1.4}
.cat__body span{font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.cat__more{display:inline-flex;align-items:center;gap:5px;margin-top:12px;font-size:13px;color:var(--brand-600);opacity:0;transform:translateX(-6px);transition:all var(--ease)}
.cat:hover .cat__more{opacity:1;transform:translateX(0)}

/* ==========================================================================
   PRODUCT LIST / GRID
   ========================================================================== */
.prods{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.prod{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all var(--ease);display:block}
.prod:hover{border-color:var(--brand-600);box-shadow:0 14px 32px rgba(31,92,184,.13);transform:translateY(-4px)}
.prod .media{height:230px;background:#fff}
.prod:hover .media>img{transform:scale(1.05)}
.prod__body{padding:20px 22px 24px;border-top:1px solid var(--line)}
.prod__body b{display:block;font-size:16px;font-weight:400;line-height:1.5;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical}
.prod__body p{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.8;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}

/* 分类筛选标签 */
.filter{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:40px}
.filter a{padding:8px 20px;border:1px solid var(--line);border-radius:var(--radius);font-size:14px;color:var(--ink-2);background:#fff}
.filter a:hover{border-color:var(--brand-600);color:var(--brand)}
.filter a.is-active{background:var(--brand);border-color:var(--brand);color:#fff}

/* ==========================================================================
   ADVANTAGES
   ========================================================================== */
.advs{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.adv{padding:36px 26px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);transition:background var(--ease),transform var(--ease)}
.adv:hover{background:rgba(255,255,255,.12);transform:translateY(-4px)}
.adv__ico{width:54px;height:54px;border-radius:var(--radius);background:rgba(255,255,255,.12);color:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:22px}
.adv b{display:block;font-size:17px;font-weight:400;color:#fff;margin-bottom:10px}
.adv i{display:block;font-style:normal;font-size:11px;letter-spacing:.12em;color:rgba(255,255,255,.42);text-transform:uppercase;margin-bottom:10px}
.adv p{font-size:13.5px;color:rgba(255,255,255,.66);line-height:1.85}
.advs--light .adv{background:#fff;border-color:var(--line)}
.advs--light .adv:hover{box-shadow:0 12px 30px rgba(31,92,184,.1)}
.advs--light .adv__ico{background:var(--brand-50);color:var(--brand)}
.advs--light .adv b{color:var(--ink)}
.advs--light .adv i{color:var(--muted)}
.advs--light .adv p{color:var(--ink-2)}

/* ==========================================================================
   NEWS
   ========================================================================== */
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.news__item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all var(--ease);display:block}
.news__item:hover{border-color:var(--brand-600);box-shadow:0 14px 32px rgba(31,92,184,.12);transform:translateY(-4px)}
.news__item .media{height:210px}
.news__item:hover .media>img{transform:scale(1.05)}
.news__body{padding:22px 24px 26px}
.news__date{font-size:12px;color:var(--muted);letter-spacing:.06em;display:flex;align-items:center;gap:8px;margin-bottom:10px}
.news__date::before{content:"";width:16px;height:1px;background:var(--brand-600)}
.news__body b{display:block;font-size:16.5px;font-weight:400;line-height:1.6;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news__body p{margin-top:10px;font-size:13.5px;color:var(--muted);line-height:1.85;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}

/* 新闻列表（左列表 + 右推荐） */
.news-layout{display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:start}
.news-list__item{display:grid;grid-template-columns:210px 1fr;gap:26px;padding:26px 0;border-bottom:1px solid var(--line);transition:all var(--ease)}
.news-list__item:first-child{padding-top:0}
.news-list__item:hover h3{color:var(--brand-600)}
.news-list__item .media{height:140px}
.news-list__item h3{font-size:17px;font-weight:700;line-height:1.6;margin-bottom:8px;transition:color var(--ease)}
.news-list__item .meta{font-size:12px;color:var(--muted);margin-bottom:10px;letter-spacing:.04em}
.news-list__item p{font-size:13.5px;color:var(--muted);line-height:1.85;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}

/* 侧栏 */
.side{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.side+.side{margin-top:26px}
.side__title{font-size:16px;font-weight:700;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:18px;position:relative}
.side__title::after{content:"";position:absolute;left:0;bottom:-1px;width:34px;height:2px;background:var(--brand-600)}
.side__links a{display:block;padding:10px 0;font-size:14px;color:var(--ink-2);border-bottom:1px dashed var(--line)}
.side__links a:last-child{border-bottom:0}
.side__links a:hover{color:var(--brand);padding-left:6px}
.side--contact{background:var(--brand);border-color:var(--brand);color:#fff}
.side--contact .side__title{color:#fff;border-color:rgba(255,255,255,.18)}
.side--contact .side__title::after{background:var(--accent)}
.side--contact p{font-size:13.5px;color:rgba(255,255,255,.72);line-height:2}
.side--contact b{color:#fff}

/* ==========================================================================
   PAGE BANNER（内页）
   ========================================================================== */
.pbanner{position:relative;height:300px;overflow:hidden;background:var(--brand-900)}
.pbanner .media{position:absolute;inset:0;height:100%}
.pbanner__mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,24,44,.74),rgba(8,24,44,.34))}
.pbanner__inner{position:relative;height:100%;display:flex;flex-direction:column;justify-content:center;color:#fff}
.pbanner__inner h1{font-size:34px;font-weight:700;letter-spacing:.03em}
.pbanner__inner .en{margin-top:10px;font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:rgba(255,255,255,.55)}

/* 面包屑 */
.crumb{background:var(--bg-soft);border-bottom:1px solid var(--line)}
.crumb__inner{display:flex;align-items:center;gap:8px;height:54px;font-size:13px;color:var(--muted)}
.crumb__inner a:hover{color:var(--brand)}
.crumb__inner span.sep{color:#C7CDCB}

/* ==========================================================================
   文章/富文本
   ========================================================================== */
.article{max-width:920px;margin:0 auto}
.article__head{text-align:center;padding-bottom:26px;border-bottom:1px solid var(--line);margin-bottom:34px}
.article__head h1{font-size:26px;font-weight:700;line-height:1.6}
.article__head .meta{margin-top:14px;font-size:13px;color:var(--muted);display:flex;justify-content:center;gap:20px;flex-wrap:wrap}
.article__body{font-size:15.5px;line-height:2.1;color:var(--ink-2)}
.article__body p{margin-bottom:20px;text-align:justify}
.article__body h3{font-size:18px;color:var(--ink);font-weight:700;margin:34px 0 16px;padding-left:14px;border-left:3px solid var(--brand-600);line-height:1.5}
.article__body ul{margin:0 0 20px;padding-left:4px}
.article__body ul li{position:relative;padding-left:18px;margin-bottom:10px}
.article__body ul li::before{content:"";position:absolute;left:0;top:12px;width:5px;height:5px;background:var(--brand-600);border-radius:50%}
.article__body img{margin:24px auto;border-radius:var(--radius)}
.article__foot{display:flex;justify-content:space-between;gap:20px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
.article__foot a:hover{color:var(--brand)}

/* ==========================================================================
   产品详情
   ========================================================================== */
.pdetail{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:start;margin-bottom:60px}
.pdetail__gallery .media{height:460px;background:#fff;border:1px solid var(--line)}
.pdetail__thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:14px}
.pdetail__thumbs .media{height:88px;background:#fff;border:1px solid var(--line);cursor:pointer}
.pdetail__thumbs .media:hover{border-color:var(--brand-600)}
.pdetail h1{font-size:27px;font-weight:700;line-height:1.5;margin-bottom:16px}
.pdetail__desc{font-size:14.5px;color:var(--ink-2);line-height:2;padding-bottom:22px;border-bottom:1px solid var(--line)}
.pdetail__spec{margin:24px 0}
.pdetail__spec li{display:flex;gap:16px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px}
.pdetail__spec li b{flex:0 0 110px;color:var(--muted);font-weight:400}
.pdetail__btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px}

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact{display:grid;grid-template-columns:1fr 320px;gap:34px;align-items:stretch}
.contact__side{display:flex;flex-direction:column}
.contact__side .qr-card{flex:1;display:flex;flex-direction:column;justify-content:center}
.contact .sec-head{margin-bottom:28px}
.contact__main,.contact__side{min-width:0}
.contact__info{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:0;padding:0}
.contact__info li{
  display:flex;gap:16px;align-items:flex-start;padding:24px;
  background:var(--bg);border:1px solid var(--line);border-radius:6px;
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease)
}
.contact__info li:hover{border-color:#CBDDEF;box-shadow:0 8px 22px rgba(18,50,88,.07);transform:translateY(-2px)}
.contact__info li.ci-wide{grid-column:1 / -1}
.contact__info .ico{width:46px;height:46px;flex:0 0 46px;border-radius:8px;background:var(--brand-50);color:var(--brand);display:flex;align-items:center;justify-content:center}
.contact__info b{display:block;font-size:13px;font-weight:400;color:var(--muted);letter-spacing:.06em;margin-bottom:7px}
.contact__info p{font-size:14px;color:var(--ink);line-height:1.75;word-break:break-word}
.contact__info p a{color:var(--ink);border-bottom:1px solid transparent;transition:color var(--ease),border-color var(--ease)}
.contact__info p a:hover{color:var(--brand);border-bottom-color:var(--brand)}
/* 电话主卡 */
.contact__info li.ci-hero{
  grid-column:1 / -1;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:22px;
  padding:28px 30px;border:0;border-radius:8px;color:#fff;
  background:linear-gradient(118deg,#123258 0%,#1F5CB8 62%,#2E6FCB 100%);
  box-shadow:0 16px 34px rgba(18,50,88,.22)
}
.contact__info li.ci-hero:hover{transform:translateY(-2px);box-shadow:0 20px 40px rgba(18,50,88,.28)}
.contact__info li.ci-hero .ico{width:56px;height:56px;flex:0 0 56px;border-radius:50%;background:rgba(255,255,255,.14);color:#fff}
.contact__info li.ci-hero b{color:rgba(255,255,255,.72);letter-spacing:.1em;font-size:12px;margin-bottom:9px}
.contact__info .big{font-size:30px;font-weight:800;line-height:1.2;color:#fff;letter-spacing:.01em}
.contact__info .big span{font-size:14px;font-weight:400;color:rgba(255,255,255,.78);margin-left:8px;letter-spacing:0}
.contact__info .ci-call{
  display:inline-flex;align-items:center;background:transparent;white-space:nowrap;gap:7px;
  border:1px solid rgba(255,255,255,.5);color:#fff
}
.contact__info .ci-call:hover{background:#fff;border-color:#fff;color:var(--brand-900)}
/* 二维码卡 */
.contact__side .qr-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:6px;padding:26px 22px 22px;text-align:center}
.contact__side .qr-card img{display:block;width:168px;height:168px;margin:0 auto;padding:8px;background:#fff;border:1px solid var(--line);border-radius:6px}
.contact__side .qr-card p{margin-top:16px}
.contact__side .qr-card p{font-size:13px;color:var(--muted);line-height:1.9}
/* 地图组件（Leaflet + 高德瓦片，免密钥） */
.map{margin-top:32px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--bg-soft)}
.map__canvas{height:380px;background:var(--bg-soft);z-index:0}
.map__bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 22px;background:#fff;border-top:1px solid var(--line)}
.map__addr{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-2);min-width:0}
.map__addr svg{flex:0 0 auto;color:var(--brand)}
.map__addr b{color:var(--ink);margin-right:8px}
.map__addr span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.map-pin{background:none;border:0}
.map-pin__dot{
  display:block;width:26px;height:26px;border-radius:50% 50% 50% 0;
  transform:rotate(-45deg);background:var(--brand);border:2px solid #fff;
  box-shadow:0 4px 12px rgba(8,24,44,.35);
}
.map-pin__dot::after{content:"";position:absolute;inset:7px;border-radius:50%;background:#fff}
.leaflet-popup-content b{font-size:15px;color:var(--ink)}
.leaflet-popup-content{font-family:inherit;line-height:1.8}
.map__bar .btn{flex:0 0 auto}

@media (max-width:900px){
  .map__canvas{height:300px}
  .map__bar{flex-direction:column;align-items:stretch;text-align:center}
  .map__addr span{white-space:normal}
  .map__bar .btn{justify-content:center}
}

/* ==========================================================================
   分页
   ========================================================================== */
.pager{display:flex;justify-content:center;gap:8px;margin-top:52px}
.pager a,.pager span{min-width:40px;height:40px;padding:0 13px;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:#fff}
.pager a:hover{border-color:var(--brand-600);color:var(--brand)}
.pager .is-active{background:var(--brand);border-color:var(--brand);color:#fff}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer{background:var(--brand-900);color:rgba(255,255,255,.66);padding:64px 0 0;font-size:14px}
.footer__top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer__col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:22px;letter-spacing:.04em}
.footer__col li{margin-bottom:11px}
.footer__col a{color:rgba(255,255,255,.66)}
.footer__col a:hover{color:#fff}
.footer__info li{display:flex;gap:10px;margin-bottom:13px;line-height:1.75}
.footer__info svg{flex:0 0 auto;margin-top:5px;opacity:.5}
.footer__info b{color:#fff;font-weight:400}
.footer__brand{display:flex;align-items:center;gap:14px;margin:-16px 0 14px;text-decoration:none}
.footer__brand+.footer__info{margin-top:-4px}
.footer__brand-icon{width:66px;height:66px;border-radius:50%;object-fit:cover;background:#fff;box-shadow:0 4px 14px rgba(0,0,0,.18)}
.footer__brand-text b{display:block;color:#fff;font-size:20px;letter-spacing:.04em;line-height:1.25}
.footer__brand-text span{display:block;color:rgba(255,255,255,.65);font-size:12px;letter-spacing:.14em;margin-top:4px}
.footer .logo__txt b{color:#fff}
.footer .logo__txt span{color:rgba(255,255,255,.4)}
.footer__qr{text-align:center}
.footer__qr .qr{width:118px;height:118px;background:#fff;border:4px solid #fff;border-radius:var(--radius);margin:0 auto 12px;display:block;object-fit:cover}
.footer__qr p{font-size:12px;color:rgba(255,255,255,.5)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.42)}
.footer__bottom a{color:rgba(255,255,255,.42)}
.footer__bottom a:hover{color:#fff}

/* 返回顶部 */
.to-top{
  position:fixed;right:26px;bottom:36px;width:46px;height:46px;border-radius:var(--radius);
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;visibility:hidden;transition:all var(--ease);z-index:60;border:0;
}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{background:var(--brand-600)}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1100px){
  .cats{grid-template-columns:repeat(3,1fr)}
  .cat .media{height:230px}
  .prods{grid-template-columns:repeat(3,1fr)}
  .footer__top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .header__inner{height:72px;gap:16px}
  .nav{position:fixed;top:72px;left:0;right:0;background:#fff;border-top:1px solid var(--line);
       max-height:0;overflow:hidden;transition:max-height .4s ease;box-shadow:0 12px 24px rgba(0,0,0,.08)}
  .nav.is-open{max-height:80vh;overflow-y:auto}
  .nav__list{display:block;padding:8px 0}
  .nav__item>a{line-height:1.4;padding:15px 24px;border-bottom:1px solid var(--line)}
  .nav__item::after{display:none}
  .nav__drop{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 8px;background:var(--bg-soft)}
  .nav__drop a{padding:11px 40px;font-size:13.5px}
  .nav__drop--mega{position:static;left:auto;width:auto;transform:none;display:block;padding:0 0 8px;border-top:0;background:var(--bg-soft)}
  .nav__col{padding:0;border-left:0}
  .nav__col-t{padding:11px 40px;font-size:14px}
  .nav__col a:not(.nav__col-t){padding:10px 56px;font-size:13.5px}
  .nav-toggle{display:flex}
  .search{display:none}
  .tel b{font-size:15px}
  .tel i{display:none}

  .section{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .sec-head h2{font-size:24px}
  .hero{height:auto;padding:90px 0 70px}
  .hero__box h1{font-size:31px}
  .hero__box p{font-size:15px}
  .about{grid-template-columns:1fr;gap:40px}
  .about__pic .media{height:300px}
  .about__badge{left:0;bottom:-20px;padding:18px 22px;min-width:0}
  .cats{grid-template-columns:repeat(2,1fr)}
  .cat .media{height:210px}
  .cat__body b{font-size:16px}
  .prods{grid-template-columns:repeat(2,1fr)}
  .advs{grid-template-columns:repeat(2,1fr)}
  .news{grid-template-columns:1fr}
  .news-layout{grid-template-columns:1fr;gap:36px}
  .pdetail{grid-template-columns:1fr;gap:34px}
  .pdetail__gallery .media{height:340px}
  .contact{grid-template-columns:1fr;gap:30px}
  .contact__info{grid-template-columns:1fr;gap:14px}
  .contact__info li.ci-wide{grid-column:auto}
  .contact__info li.ci-hero{grid-template-columns:auto 1fr;gap:16px;padding:22px 20px}
  .contact__info .ci-call{grid-column:1 / -1;justify-content:center;margin-top:4px}
  .contact__info .big{font-size:22px}
  .contact__info .big span{display:block;margin:4px 0 0}
  .contact__side .qr-card img{width:150px;height:150px}
  .form{grid-template-columns:1fr;padding:24px}
  .article__head h1{font-size:21px}
  .footer__top{grid-template-columns:1fr;gap:34px}
  .footer__bottom{justify-content:flex-start}
  .pbanner{height:220px}
  .pbanner__inner h1{font-size:25px}
}
@media (max-width:560px){
  .cats{grid-template-columns:1fr}
  .cat .media{height:200px}
  .prods{grid-template-columns:1fr}
  .advs{grid-template-columns:1fr}
  .stats__item{flex:1 1 45%}
  .stats__item+.stats__item{padding-left:0;border-left:0}
  .stats__item:nth-child(even){padding-left:20px;border-left:1px solid var(--line)}
  .news-list__item{grid-template-columns:1fr;gap:14px}
  .news-list__item .media{height:180px}
  .logo__mark{width:40px;height:40px;flex-basis:40px;font-size:17px}
  .logo__txt b{font-size:16px}
}

/* 空下拉隐藏（无子栏目的导航项） */
.nav__drop:empty{display:none}

/* ==========================================================================
   全站字体加粗 + 立体增强（对齐参考站 ntkdbz.cn）
   参考站特征：Microsoft YaHei + font-weight:bold + 大标题 + banner 白字蓝色辉光投影
   text-shadow:3px 0 10px rgb(22 78 145 / 40%)
   —— 本段集中追加，删除即可整体回滚
   ========================================================================== */

/* 1) 字体栈：微软雅黑优先（含 YaHei UI），强化字形渲染 */
body{
  font-family:"Microsoft YaHei","Microsoft YaHei UI","PingFang SC","Hiragino Sans GB",
              system-ui,-apple-system,"Segoe UI",sans-serif;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
input,button,textarea,select{font-family:inherit}

/* 2) 强调标签统一 700 */
strong,b,th,label{font-weight:700}

/* 3) 标题 / 导航 / 按钮 / 关键文本：全部 700 */
h1,h2,h3,h4,h5,h6,
.logo__mark,.logo__txt b,
.tel b,
.hero__eyebrow,.hero__box h1,
.stats__num,.stats__label,
.about__body .lead,.about__badge b,
.cat__more,
.adv i,
.news__date,
.news-list__item h3,
.side__title,.side__links a,
.pbanner__inner h1,
.article__head h1,.article__body h3,
.pdetail h1,.pdetail__spec li,
.contact__info b,.contact__info .big,
.footer__col h4,.footer__info b,
.btn,.filter a,.pager a,.pager span,
.crumb__inner,.form label{
  font-weight:700;
}

/* 4) 描边增重：让中文笔画更"厚"（中字号以上才加，小字不加避免糊） */
h1,h2,h3,h4,
.logo__txt b,
.tel b,
.hero__box h1,
.stats__num,
.about__badge b,
.news-list__item h3,
.side__title,
.pbanner__inner h1,
.article__head h1,
.article__body h3,
.pdetail h1,
.contact__info b,.contact__info .big,
.footer__col h4{
  -webkit-text-stroke:.35px currentColor;
}

/* 5) 立体投影 —— 浅底深色标题：轻投影，字从纸面"浮"起 */
.sec-head h2,
.article__head h1,
.pdetail h1,
.news-list__item h3,
.side__title,
.article__body h3,
.contact__info b,
.contact__info .big,
.filter a,
.pager a,.pager span,
.about__body .lead{
  text-shadow:0 1px 2px rgba(26,26,26,.16);
}

/* 6) 立体投影 —— 深底/图片上的白字：深投影 + 主色辉光（参考站同款手法） */
.hero__eyebrow,
.hero__box h1,
.pbanner__inner h1,
.pbanner__inner .en,
.section--dark .sec-head h2,
.side--contact .side__title,
.footer__col h4,
.footer .logo__txt b,
.about__badge b{
  text-shadow:0 2px 6px rgba(8,24,44,.45), 0 0 24px rgba(31,92,184,.38);
}

/* 7) 主色文本 / 按钮：贴合自身颜色的柔和投影 */
.tel b{text-shadow:0 1px 2px rgba(31,92,184,.20)}
.btn,.filter a.is-active,.pager .is-active{text-shadow:0 1px 2px rgba(8,24,44,.24)}

/* ==========================================================================
   HERO 轮播（参考站 ntkdbz.cn：大图自动切换 + 底部圆点）
   —— 多张 .hero__slide 绝对定位叠放，opacity 交叉淡入
   ========================================================================== */
.hero--slider .hero__slide{position:absolute;inset:0;opacity:0;visibility:hidden;
  transition:opacity 1.2s ease, visibility 1.2s;z-index:1}
.hero--slider .hero__slide.is-active{opacity:1;visibility:visible;z-index:2}
.hero--slider .hero__slide .hero__bg img{transform:scale(1.06);transition:transform 7s ease-out}
.hero--slider .hero__slide.is-active .hero__bg img{transform:scale(1.12)}  /* Ken Burns 缓推 */
.hero--slider .hero__slide .hero__box{opacity:0;transform:translateY(26px);
  transition:opacity .8s ease .35s, transform .8s ease .35s}
.hero--slider .hero__slide.is-active .hero__box{opacity:1;transform:translateY(0)}

/* 底部圆点（参考站 p_pagenation 样式） */
.hero__dots{position:absolute;left:0;right:0;bottom:26px;z-index:10;
  display:flex;justify-content:center;gap:12px}
.hero__dots button{width:38px;height:4px;padding:0;border:0;cursor:pointer;
  background:rgba(255,255,255,.4);border-radius:2px;transition:background var(--ease)}
.hero__dots button:hover{background:rgba(255,255,255,.7)}
.hero__dots button.is-active{background:#fff}

/* 移动端圆点下移避让按钮 */
@media (max-width:900px){
  .hero__dots{bottom:18px}
  .hero__dots button{width:26px}
}

/* 9) LOGO 尺寸（桌面放大，小屏自动降级避免挤爆导航） */
.logo__img{height:66px;width:auto}
@media (max-width:900px){
  .logo__img{height:52px}
}
@media (max-width:560px){
  .logo__img{height:44px}
}

/* 8) 移动端降级：小字号描边减半，避免糊 */
@media (max-width:900px){
  h1,h2,h3,h4,.logo__txt b,.tel b,.hero__box h1,
  .stats__num,
  .news-list__item h3,.side__title,.pbanner__inner h1,
  .article__head h1,.article__body h3,.pdetail h1,
  .contact__info b,.contact__info .big,.footer__col h4,.about__badge b{
    -webkit-text-stroke:.22px currentColor;
  }
}

/* 10) 首页「我们的优势 / 新闻资讯」区块标题去粗（仅首页这两块，其他区块不受影响） */
.sec-head--plain h2{font-weight:400;-webkit-text-stroke:0;text-shadow:none}
.section--dark .sec-head--plain h2{text-shadow:none}

/* 详情页实拍图集 */
.pdetail__thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.pdetail__thumbs button{
  width:78px;height:78px;padding:0;border:2px solid var(--line);background:#fff;
  border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:border-color var(--ease);
}
.pdetail__thumbs button:hover{border-color:var(--brand-600)}
.pdetail__thumbs button.is-active{border-color:var(--brand)}
.pdetail__thumbs img{width:100%;height:100%;object-fit:cover}

/* 栏目页二级分类卡片 */
.subcats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:38px}
.subcat{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all var(--ease)}
.subcat:hover{border-color:var(--brand-600);box-shadow:0 12px 28px rgba(31,92,184,.10);transform:translateY(-3px)}
.subcat .media{height:150px}
.subcat:hover .media>img{transform:scale(1.05)}
.subcat b{display:block;padding:14px 16px 3px;font-size:15px;font-weight:400;color:var(--ink)}
.subcat span{display:block;padding:0 16px 14px;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
@media (max-width:900px){
  .subcats{grid-template-columns:repeat(2,1fr);gap:14px;margin-bottom:26px}
  .subcat .media{height:120px}
}

/* 二级分类文字列表（包装袋等页面用） */
.subcats--text{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.subcats--text .subcat{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 22px;border:1px solid var(--line);border-radius:20px;background:#fff;font-size:14px;color:var(--ink);white-space:nowrap;transition:all var(--ease)}
.subcats--text .subcat.is-active,.subcats--text .subcat:hover{border-color:var(--brand);background:var(--brand-50);color:var(--brand)}

/* ==========================================================================
   搜索结果页
   ========================================================================== */
.search-head{text-align:center;margin-bottom:40px}
.search-lg{display:flex;max-width:660px;margin:0 auto;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.search-lg input{flex:1 1 auto;min-width:0;border:0;outline:none;padding:14px 18px;font-size:15px;background:transparent}
.search-lg button{flex:0 0 auto;border:0;background:var(--brand);color:#fff;padding:0 34px;font-size:15px;letter-spacing:.06em;cursor:pointer;transition:background var(--ease)}
.search-lg button:hover{background:var(--brand-600)}
.search-sum{margin:16px 0 0;font-size:14px;color:var(--muted)}
.search-sum b{color:var(--brand);font-size:16px;font-weight:700}
.prod__body em{font-style:normal;color:var(--brand-600)}   /* 搜索关键词高亮 */

@media (max-width:900px){
  .search-head{margin-bottom:28px}
  .search-lg button{padding:0 22px}
}

/* 移动端：头部搜索框移入展开的菜单面板内 */
.search--m{display:none}
@media (max-width:900px){
  .search--m{
    display:flex;border:0;border-radius:0;background:var(--bg-soft);
    margin:12px 24px 16px;border-bottom:1px solid var(--line);
  }
  .search--m input{flex:1 1 auto;width:auto;min-width:0;padding:12px 14px}
  .search--m button{padding:12px 14px}
}

/* ==========================================================================
   联系信息（销售经理 陈经理 / WhatsApp 18962842822）
   —— 集中追加，整段删除即可回滚
   ========================================================================== */
.btn--wa{background:#25D366;border-color:#25D366;color:#fff}
.btn--wa:hover{background:#1EBE5A;border-color:#1EBE5A;color:#fff}
.contact__info .ct-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.footer__info b a{color:#fff}
.footer__info b a:hover{color:var(--accent)}

/* ==========================================================================
   移动端精修 v2（2026-10-09）
   修复：hero--slider 小屏高度塌缩（absolute slide 脱离文档流，auto 高度只剩 padding）
   优化：≤560px 改双列紧凑网格、间距收紧、产品白底图完整展示
   —— 本段集中追加，整段删除即可完全回滚
   ========================================================================== */

/* 1) hero 轮播 ≤900px：固定高度，文案底对齐、避开圆点指示器 */
@media (max-width:900px){
  .hero--slider{height:clamp(400px,58vh,540px);padding:0}
  .hero--slider .hero__inner{align-items:flex-end;padding-bottom:64px}
  .hero--slider .hero__box h1{font-size:clamp(24px,6.5vw,31px);margin-bottom:14px}
  .hero--slider .hero__box p{font-size:13.5px;line-height:1.8;margin-bottom:22px}
  .hero--slider .hero__eyebrow{margin-bottom:12px}
  /* footer：平板起就改为两列并排（品牌块全宽 + 链接栏并排），避免纵向堆叠 */
  .footer__top{grid-template-columns:1fr 1fr;gap:28px 20px}
  .footer__col:first-child{grid-column:1 / -1}
}

/* 2) ≤560px：网格与排版精修 */
@media (max-width:560px){
  /* 区块节奏收紧 */
  .section{padding:44px 0}
  .sec-head{margin-bottom:26px}
  .sec-head h2{font-size:21px}
  .sec-head .en{font-size:11px;letter-spacing:.2em}
  .btn{padding:11px 24px}

  /* 产品分类：1列 → 2列紧凑卡片 */
  .cats{grid-template-columns:repeat(2,1fr);gap:12px}
  .cat .media{height:116px}
  .cat__body{padding:12px 12px 14px}
  .cat__body b{font-size:14px;margin-bottom:3px;line-height:1.45}
  .cat__body span{font-size:10px;letter-spacing:.1em}
  .cat__more{display:none}   /* 移动端无 hover，隐藏提示箭头 */

  /* 热销产品：1列 → 2列；白底产品图 contain 完整展示不裁剪 */
  .prods{grid-template-columns:repeat(2,1fr);gap:12px}
  .prod .media{height:148px;background:#F6F8FA}
  .prod .media>img{object-fit:contain;padding:10px}
  .prod__body{padding:12px 13px 14px}
  .prod__body b{font-size:13.5px;-webkit-line-clamp:2}
  .prod__body p{font-size:12px;margin-top:6px;-webkit-line-clamp:1}

  /* 优势 / 新闻卡片收紧 */
  .adv{padding:24px 20px}
  .adv__ico{width:44px;height:44px;margin-bottom:14px}
  .news__item .media{height:170px}
  .news__body{padding:16px 18px 20px}

  /* footer 收紧：链接栏并排（单列不换行），footer 高度约减半 */
  .footer{padding-top:38px}
  .footer__top{grid-template-columns:1fr 1fr;gap:24px 20px;padding-bottom:26px}
  .footer__col:first-child{grid-column:1 / -1}          /* 品牌 + 联系方式全宽 */
  .footer__col h4{font-size:14px;margin-bottom:14px;letter-spacing:.02em}
  .footer__col li{margin-bottom:9px}
  .footer__col a{font-size:13.5px;white-space:nowrap}   /* 单列，禁止难看的拆行 */
  .footer__info li{margin-bottom:10px;font-size:13px}
  .footer__info b{word-break:break-all}                  /* 长地址/邮箱正常换行 */
  /* 关注我们：二维码左置 + 文字横排 */
  .footer__qr{
    grid-column:1 / -1;display:grid;grid-template-columns:auto 1fr;
    grid-template-rows:auto auto;column-gap:16px;row-gap:5px;
    align-items:center;justify-items:start;text-align:left;
  }
  .footer__qr h4{grid-column:2;grid-row:1;margin:0;align-self:end}
  .footer__qr .qr{grid-column:1;grid-row:1 / span 2;width:86px;height:86px;margin:0}
  .footer__qr p{grid-column:2;grid-row:2;margin:0;align-self:start;font-size:12px}
  /* 版权区收紧；备案号整体换行不被拆字 */
  .footer__bottom{padding:18px 0;font-size:12px;line-height:1.9;gap:6px}
  #icpNo{display:inline-block}
}