/* =========================================================
   澄川化工 CHENGCHUAN CHEM — 站点样式
   ========================================================= */

:root{
  --ink:#0A1B24;
  --navy:#0E3346;
  --navy-2:#124458;
  --steel:#45606E;
  --muted:#7A8F9A;
  --mist:#F4F7F8;
  --mist-2:#EAF0F2;
  --line:#E1E9EC;
  --line-d:#D3DEE2;
  --acc:#00A29B;
  --acc-d:#00807A;
  --amber:#DE8A2B;
  --white:#fff;
  --wrap:1240px;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:#fff;color:var(--ink);
  font-family:"Inter","Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:15px;line-height:1.72;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{margin:0;font-weight:600;letter-spacing:-.02em;line-height:1.25;color:var(--ink)}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
::selection{background:rgba(0,162,155,.22)}

.wrap{width:min(var(--wrap),calc(100% - 80px));margin-inline:auto}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.num{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:46px;padding:0 24px;border-radius:2px;border:1px solid transparent;
  font-size:14px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  transition:background .25s,color .25s,border-color .25s,transform .25s;
  white-space:nowrap;
}
.btn svg{flex:none}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{background:var(--acc);color:#fff}
.btn--acc{background:var(--acc);color:#fff}
.btn--acc:hover{background:var(--acc-d)}
.btn--ghost{border-color:var(--line-d);color:var(--ink);background:transparent}
.btn--ghost:hover{border-color:var(--ink);background:var(--ink);color:#fff}
.btn--light{background:#fff;color:var(--ink)}
.btn--light:hover{background:var(--acc);color:#fff}
.btn--sm{height:38px;padding:0 16px;font-size:13px}

/* ---------- 页头 ---------- */
.site-header{position:relative;z-index:80}
.topbar{background:var(--ink);color:rgba(255,255,255,.6);font-size:12.5px;letter-spacing:.03em}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:38px;gap:20px}
.topbar-note{display:flex;align-items:center;gap:10px}
.topbar-note .dot{width:5px;height:5px;border-radius:50%;background:var(--acc);box-shadow:0 0 0 3px rgba(0,162,155,.22)}
.topbar-nav{display:flex;align-items:center;gap:0}
.topbar-nav a{padding:0 14px;transition:color .2s}
.topbar-nav a:hover{color:#fff}
.topbar-nav a+a{border-left:1px solid rgba(255,255,255,.14)}

.navbar{position:sticky;top:0;z-index:70;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
.navbar-inner{display:flex;align-items:center;justify-content:space-between;height:78px;gap:24px}
.site-header.is-stuck .navbar{box-shadow:0 12px 30px rgba(10,27,36,.08)}

.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{width:40px;height:40px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text b{font-size:19px;font-weight:700;letter-spacing:.04em}
.brand-text em{font-family:var(--mono);font-style:normal;font-size:9.5px;letter-spacing:.19em;color:var(--muted);margin-top:5px}

.mainnav{display:flex;align-items:center;gap:30px}
.mainnav a{position:relative;font-size:14.5px;font-weight:500;color:var(--steel);padding:8px 0;transition:color .2s}
.mainnav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--acc);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.mainnav a:hover,.mainnav a.is-active{color:var(--ink)}
.mainnav a:hover::after,.mainnav a.is-active::after{transform:scaleX(1)}

.mainnav .has-drop{position:relative}
.mainnav .has-drop > a{display:inline-flex;align-items:center;gap:6px}
.mainnav .has-drop > a::before{content:"";position:absolute;left:0;right:0;top:100%;height:26px}
.drop{
  position:absolute;top:calc(100% + 12px);left:-18px;min-width:236px;background:#fff;
  border:1px solid var(--line);padding:8px 0;box-shadow:0 24px 48px rgba(10,27,36,.12);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:.28s ease;
}
.mainnav .has-drop:hover .drop{opacity:1;visibility:visible;transform:none}
.drop a{display:flex;align-items:center;justify-content:space-between;padding:9px 20px;font-size:13.5px;color:var(--steel);transition:.2s}
.drop a:hover{background:var(--mist);color:var(--ink);padding-left:24px}
.drop a em{font-style:normal;font-family:var(--mono);font-size:11px;color:var(--muted)}
.drop a:hover em{color:var(--acc)}

.nav-actions{display:flex;align-items:center;gap:14px;flex:none}
.nav-cart{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--steel);padding:8px 10px;border:1px solid var(--line);border-radius:2px;transition:.2s}
.nav-cart:hover{border-color:var(--acc);color:var(--ink)}
.nav-cart .badge{min-width:19px;height:19px;padding:0 5px;border-radius:999px;background:var(--acc);color:#fff;font-size:11px;font-weight:700;display:grid;place-items:center;font-variant-numeric:tabular-nums}
.burger{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:2px;align-items:center;justify-content:center}

.mobile-nav{display:none;position:fixed;inset:0;z-index:120;background:var(--ink);color:#fff;padding:28px 24px;flex-direction:column}
.mobile-nav.is-open{display:flex}
.mobile-nav .close{align-self:flex-end;font-size:26px;line-height:1;padding:6px 10px;color:rgba(255,255,255,.7)}
.mobile-nav a{display:block;padding:16px 0;font-size:19px;border-bottom:1px solid rgba(255,255,255,.12)}
.mobile-nav .m-foot{margin-top:auto;color:rgba(255,255,255,.55);font-size:13px;line-height:2}

/* ---------- 通用区块 ---------- */
.section{padding:92px 0}
.section--mist{background:var(--mist)}
.section--tight{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:44px}
.sec-head .l{max-width:640px}
.eyebrow{display:flex;align-items:center;gap:12px;font-family:var(--mono);font-size:11.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--acc);margin-bottom:16px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--acc)}
.eyebrow--light{color:#5FD8CF}
.eyebrow--light::before{background:#5FD8CF}
.sec-title{font-size:clamp(26px,2.6vw,36px);letter-spacing:-.025em}
.sec-desc{margin-top:14px;color:var(--steel);font-size:15px;max-width:600px}
.sec-link{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line-d);padding-bottom:5px;transition:.25s;white-space:nowrap}
.sec-link:hover{color:var(--acc);border-color:var(--acc);gap:12px}

/* ---------- 首页 Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(150deg,#08151C 0%,#0C2C3D 52%,#10465A 100%);color:#fff;padding:74px 0 0}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(120% 90% at 20% 10%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(120% 90% at 20% 10%,#000 0%,transparent 78%);
}
.hero::after{content:"";position:absolute;width:760px;height:760px;right:-220px;top:-320px;border-radius:50%;background:radial-gradient(circle,rgba(0,162,155,.30),transparent 62%);filter:blur(10px)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;padding-bottom:66px}
.hero h1{font-size:clamp(34px,4vw,58px);line-height:1.1;letter-spacing:-.035em;font-weight:600;color:#fff}
.hero h1 span{color:#5FD8CF}
.hero-sub{margin-top:22px;color:rgba(255,255,255,.68);font-size:15.5px;max-width:520px;line-height:1.8}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.hero-badges span{font-size:12px;letter-spacing:.06em;padding:5px 11px;border:1px solid rgba(255,255,255,.2);border-radius:2px;color:rgba(255,255,255,.72)}

.search-box{margin-top:32px;max-width:560px}
.search-box form{display:flex;align-items:center;background:#fff;padding:6px;border-radius:2px;box-shadow:0 18px 40px rgba(0,0,0,.22)}
.search-box .ico{padding:0 4px 0 14px;color:var(--muted);display:flex}
.search-box input{flex:1;border:0;outline:0;height:46px;padding:0 12px;font-size:14.5px;background:transparent;color:var(--ink)}
.search-box input::placeholder{color:#9DAEB6}
.search-box button{height:46px;padding:0 26px;background:var(--acc);color:#fff;font-size:14px;font-weight:600;border-radius:2px;transition:.2s}
.search-box button:hover{background:var(--acc-d)}
.hot-words{margin-top:14px;font-size:12.5px;color:rgba(255,255,255,.45);display:flex;flex-wrap:wrap;gap:6px 16px;align-items:center}
.hot-words b{font-weight:500;color:rgba(255,255,255,.62)}
.hot-words a{border-bottom:1px dashed rgba(255,255,255,.28);padding-bottom:1px;transition:.2s}
.hot-words a:hover{color:#5FD8CF;border-color:#5FD8CF}

/* Hero 右侧视觉 */
.hero-visual{position:relative;height:400px}
.hero-visual svg{width:100%;height:100%}
.float-card{
  position:absolute;background:rgba(255,255,255,.97);color:var(--ink);
  padding:16px 18px;border-radius:2px;box-shadow:0 24px 50px rgba(0,0,0,.32);
  min-width:236px;backdrop-filter:blur(4px);
}
.float-card .fc-top{display:flex;align-items:center;justify-content:space-between;font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}
.float-card .fc-name{font-size:16px;font-weight:600;margin-top:10px}
.float-card .fc-cas{font-family:var(--mono);font-size:12px;color:var(--steel);margin-top:3px}
.float-card .fc-row{display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding-top:12px;border-top:1px solid var(--line);font-size:12px}
.float-card .stock{display:inline-flex;align-items:center;gap:6px;color:var(--acc);font-weight:600}
.float-card .stock i{width:6px;height:6px;border-radius:50%;background:var(--acc);box-shadow:0 0 0 3px rgba(0,162,155,.18)}
.fc-a{left:0;bottom:34px}
.fc-b{right:0;top:8px;min-width:200px}
.fc-b .kv{display:flex;justify-content:space-between;font-size:12px;padding:5px 0;color:var(--steel)}
.fc-b .kv b{font-family:var(--mono);color:var(--ink);font-weight:600}

/* 数据条 */
.stats{background:#fff;border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:30px 0 30px 34px;border-left:1px solid var(--line);position:relative}
.stat:first-child{border-left:0;padding-left:0}
.stat .v{font-size:34px;font-weight:600;letter-spacing:-.03em;line-height:1;font-variant-numeric:tabular-nums;color:var(--ink)}
.stat .v em{font-style:normal;font-size:16px;color:var(--acc);font-weight:600;margin-left:3px;letter-spacing:0}
.stat .k{margin-top:9px;font-size:13px;color:var(--steel)}

/* ---------- 品类矩阵 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.cat-card{background:#fff;padding:32px 30px 28px;position:relative;transition:background .3s,transform .3s;display:flex;flex-direction:column;min-height:226px}
.cat-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--acc);transform:scaleX(0);transform-origin:left;transition:transform .4s}
.cat-card:hover{background:#FBFDFD}
.cat-card:hover::before{transform:scaleX(1)}
.cat-ico{width:44px;height:44px;margin-bottom:20px;color:var(--acc);transition:transform .35s}
.cat-card:hover .cat-ico{transform:translateY(-3px)}
.cat-card h3{font-size:19px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.cat-card h3 .en{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--muted);font-weight:400;text-transform:uppercase}
.cat-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}
.cat-tags a{font-size:12.5px;color:var(--steel);padding:3px 9px;background:var(--mist);border-radius:2px;transition:.2s}
.cat-tags a:hover{background:var(--acc);color:#fff}
.cat-card .go{margin-top:auto;padding-top:20px;font-size:12.5px;font-weight:600;color:var(--acc);display:inline-flex;align-items:center;gap:6px;opacity:0;transform:translateX(-6px);transition:.3s}
.cat-card:hover .go{opacity:1;transform:none}

/* ---------- 产品卡 ---------- */
.p-tabs{display:flex;gap:6px;flex-wrap:wrap}
.p-tab{padding:8px 16px;font-size:13px;color:var(--steel);border:1px solid var(--line);border-radius:2px;transition:.2s;background:#fff}
.p-tab:hover{border-color:var(--line-d);color:var(--ink)}
.p-tab.is-on{background:var(--ink);border-color:var(--ink);color:#fff}

.p-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.p-grid--3{grid-template-columns:repeat(3,1fr)}
.p-card{border:1px solid var(--line);background:#fff;display:flex;flex-direction:column;transition:border-color .3s,box-shadow .3s,transform .3s;overflow:hidden}
.p-card:hover{border-color:var(--line-d);box-shadow:0 18px 36px rgba(10,27,36,.08);transform:translateY(-3px)}
.p-plate{position:relative;height:148px;overflow:hidden;display:grid;place-items:center;background:linear-gradient(145deg,#F7FAFB,#E8F0F2)}
.p-plate .formula{position:relative;font-family:var(--mono);font-size:22px;color:rgba(10,27,36,.30);letter-spacing:.02em;z-index:2}
.p-plate .hex{position:absolute;inset:0;opacity:.5}
.p-plate .cat-chip{position:absolute;left:12px;top:12px;z-index:3;font-size:10.5px;letter-spacing:.08em;padding:3px 8px;background:rgba(255,255,255,.92);color:var(--steel);border-radius:2px}
.p-plate .grade-chip{position:absolute;right:12px;top:12px;z-index:3;font-family:var(--mono);font-size:10.5px;padding:3px 8px;background:var(--ink);color:#fff;border-radius:2px;letter-spacing:.06em}
.p-body{padding:18px 18px 0;flex:1}
.p-cas{font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.04em}
.p-name{font-size:15.5px;font-weight:600;margin-top:6px;line-height:1.4}
.p-en{font-size:12px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.p-meta{margin-top:14px;border-top:1px dashed var(--line);padding-top:11px;display:grid;gap:5px;font-size:12px;color:var(--steel)}
.p-meta .r{display:flex;justify-content:space-between;gap:10px}
.p-meta .r span:last-child{font-family:var(--mono);color:var(--ink);font-size:11.5px}
.p-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px 18px 16px}
.p-price{font-size:14px;font-weight:600;font-variant-numeric:tabular-nums}
.p-price small{display:block;font-size:10.5px;color:var(--muted);font-weight:400;letter-spacing:.04em}
.p-price.is-ask{color:var(--steel);font-size:13px;font-weight:500}
.p-act{display:inline-flex;align-items:center;gap:5px;height:32px;padding:0 12px;border:1px solid var(--line-d);border-radius:2px;font-size:12.5px;font-weight:600;transition:.2s;background:#fff}
.p-act:hover{background:var(--ink);border-color:var(--ink);color:#fff}

/* ---------- 能力 / 服务 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-d);border:1px solid var(--line-d);border-radius:2px;overflow:hidden}
.svc{background:#fff;padding:34px 30px 32px;transition:.3s}
.svc:hover{background:var(--ink);color:#fff}
.svc:hover h3,.svc:hover .svc-idx{color:#fff}
.svc:hover p{color:rgba(255,255,255,.66)}
.svc-idx{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--acc);transition:.3s}
.svc h3{font-size:17px;margin-top:16px;transition:.3s}
.svc p{margin-top:10px;font-size:13.5px;color:var(--steel);line-height:1.75;transition:.3s}
.svc .tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:6px}
.svc .tags span{font-size:11px;padding:3px 8px;border:1px solid var(--line);color:var(--muted);border-radius:2px}
.svc:hover .tags span{border-color:rgba(255,255,255,.2);color:rgba(255,255,255,.6)}

/* ---------- 行业方案 ---------- */
.ind-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:rgba(255,255,255,.14)}
.ind{padding:30px 24px 30px;background:var(--ink);color:#fff;position:relative;transition:background .3s}
.ind:hover{background:#0F3A4C}
.ind .n{font-family:var(--mono);font-size:11px;color:rgba(255,255,255,.34);letter-spacing:.14em}
.ind h3{color:#fff;font-size:17px;margin-top:34px}
.ind p{color:rgba(255,255,255,.5);font-size:12.5px;margin-top:8px;line-height:1.7}
.ind .arw{position:absolute;right:22px;top:28px;color:rgba(255,255,255,.25);transition:.3s}
.ind:hover .arw{color:var(--acc);transform:translate(2px,-2px)}

/* ---------- 品牌墙 ---------- */
.brand-wall{display:grid;grid-template-columns:repeat(6,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.brand-item{border-right:1px solid var(--line);border-bottom:1px solid var(--line);height:104px;display:grid;place-items:center;transition:.3s;background:#fff}
.brand-item span{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:#93A6AF;transition:.3s}
.brand-item:hover{background:var(--mist)}
.brand-item:hover span{color:var(--ink)}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:24px}
.news-main{border:1px solid var(--line);padding:34px 34px 30px;background:#fff;display:flex;flex-direction:column;transition:.3s}
.news-main:hover{border-color:var(--line-d);box-shadow:0 18px 40px rgba(10,27,36,.07)}
.news-main .date{font-family:var(--mono);font-size:12px;color:var(--acc);letter-spacing:.08em}
.news-main h3{font-size:23px;line-height:1.42;margin-top:16px}
.news-main p{margin-top:12px;color:var(--steel);font-size:13.5px;line-height:1.8}
.news-main .go{margin-top:auto;padding-top:26px;font-size:13px;font-weight:600;color:var(--ink);display:inline-flex;gap:8px;align-items:center}
.news-card{border:1px solid var(--line);padding:26px 24px;background:#fff;transition:.3s}
.news-card:hover{border-color:var(--line-d);box-shadow:0 14px 30px rgba(10,27,36,.06)}
.news-card .date{font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.08em}
.news-card h4{font-size:15.5px;line-height:1.6;margin-top:12px}
.news-card .cat{display:inline-block;margin-top:18px;font-size:11px;padding:3px 9px;background:var(--mist);color:var(--steel);border-radius:2px}

/* ---------- CTA ---------- */
.cta{position:relative;overflow:hidden;background:linear-gradient(120deg,#0A1B24,#10465A)}
.cta::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(90deg,#000,transparent 70%);-webkit-mask-image:linear-gradient(90deg,#000,transparent 70%)}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:48px;padding:64px 0}
.cta h2{color:#fff;font-size:clamp(24px,2.4vw,32px);letter-spacing:-.025em}
.cta p{color:rgba(255,255,255,.6);margin-top:12px;font-size:14.5px}
.cta-acts{display:flex;gap:12px;flex:none;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.footer{background:#08151C;color:rgba(255,255,255,.58);font-size:13.5px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;padding:68px 0 54px}
.footer .brand-text b{color:#fff}
.footer .brand-text em{color:rgba(255,255,255,.4)}
.footer-about{margin-top:20px;line-height:1.85;color:rgba(255,255,255,.48);font-size:13px;max-width:320px}
.footer h5{color:#fff;font-size:13.5px;letter-spacing:.04em;margin-bottom:18px;font-weight:600}
.footer li{margin-bottom:11px}
.footer li a{transition:color .2s}
.footer li a:hover{color:#5FD8CF}
.footer-contact .row{display:flex;gap:9px;margin-bottom:13px;line-height:1.7}
.footer-contact .row span:first-child{color:rgba(255,255,255,.32);flex:none;width:44px;font-size:12px}
.footer-contact .tel{font-family:var(--mono);font-size:16px;color:#fff}
.footer-bar{border-top:1px solid rgba(255,255,255,.1);padding:22px 0 26px;font-size:12px;color:rgba(255,255,255,.34)}
.footer-bar .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.footer-bar a:hover{color:#fff}
.footer-bar .links{display:flex;gap:16px;flex-wrap:wrap}

/* ---------- 内页头 ---------- */
.page-hero{position:relative;overflow:hidden;background:linear-gradient(140deg,#08151C,#0E3346 70%,#12495C);color:#fff;padding:56px 0 58px}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(100% 100% at 80% 0%,#000,transparent 75%);-webkit-mask-image:radial-gradient(100% 100% at 80% 0%,#000,transparent 75%)}
.page-hero .wrap{position:relative}
.crumb{display:flex;align-items:center;gap:9px;font-size:12.5px;color:rgba(255,255,255,.45);margin-bottom:22px}
.crumb a:hover{color:#fff}
.crumb i{font-style:normal;color:rgba(255,255,255,.26)}
.crumb--dark{color:var(--muted);margin-bottom:26px}
.crumb--dark a:hover{color:var(--ink)}
.crumb--dark i{color:var(--line-d)}
.crumb--dark span{color:var(--ink)}
.page-hero h1{color:#fff;font-size:clamp(28px,3.2vw,42px);letter-spacing:-.03em}
.page-hero p{color:rgba(255,255,255,.62);margin-top:14px;max-width:620px;font-size:14.5px}

/* ---------- 产品中心 ---------- */
.plp{display:grid;grid-template-columns:262px 1fr;gap:44px;align-items:start;padding:52px 0 96px}
.side{position:sticky;top:100px}
.side-block{border-top:1px solid var(--ink);padding-top:16px;margin-bottom:30px}
.side-block h4{font-size:13px;letter-spacing:.06em;margin-bottom:14px;display:flex;justify-content:space-between;align-items:center;color:var(--ink)}
.side-block h4 .clr{font-size:11px;color:var(--muted);font-weight:400;cursor:pointer}
.side-list li{margin-bottom:2px}
.side-list a{display:flex;align-items:center;justify-content:space-between;padding:8px 10px;font-size:13.5px;color:var(--steel);border-radius:2px;transition:.2s}
.side-list a:hover{background:var(--mist);color:var(--ink)}
.side-list a.is-on{background:var(--ink);color:#fff}
.side-list a em{font-style:normal;font-family:var(--mono);font-size:11px;opacity:.5}
.chk{display:flex;align-items:center;gap:9px;padding:6px 2px;font-size:13.5px;color:var(--steel);cursor:pointer}
.chk input{appearance:none;width:15px;height:15px;border:1px solid var(--line-d);border-radius:2px;flex:none;position:relative;transition:.2s;cursor:pointer}
.chk input:checked{background:var(--acc);border-color:var(--acc)}
.chk input:checked::after{content:"";position:absolute;left:4px;top:1px;width:5px;height:9px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(42deg)}
.chk:hover{color:var(--ink)}
.side-cta{margin-top:34px;padding:22px;background:var(--mist);border-left:2px solid var(--acc)}
.side-cta h5{font-size:14px;margin-bottom:8px}
.side-cta p{font-size:12.5px;color:var(--steel);line-height:1.7}
.side-cta a{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:12.5px;font-weight:600;color:var(--acc)}

.toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:26px;flex-wrap:wrap}
.toolbar .cnt{font-size:13.5px;color:var(--steel)}
.toolbar .cnt b{color:var(--ink);font-family:var(--mono);font-size:15px}
.toolbar .tools{display:flex;gap:10px;align-items:center}
.tb-search{display:flex;align-items:center;border:1px solid var(--line);border-radius:2px;padding:0 10px;height:40px;background:#fff}
.tb-search input{border:0;outline:0;width:200px;font-size:13.5px;padding:0 8px;background:transparent}
.tb-search svg{color:var(--muted)}
select.sel{height:40px;border:1px solid var(--line);border-radius:2px;padding:0 30px 0 12px;font-size:13px;background:#fff;outline:0;color:var(--steel);appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 4.5 6 7.5 9 4.5' fill='none' stroke='%237A8F9A' stroke-width='1.4' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}
.empty{grid-column:1/-1;padding:70px 0;text-align:center;color:var(--muted);font-size:14px}

.pager{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:46px}
.pager a,.pager span{min-width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:2px;font-size:13px;color:var(--steel);font-variant-numeric:tabular-nums}
.pager .is-on{background:var(--ink);color:#fff;border-color:var(--ink)}
.pager a:hover{border-color:var(--ink);color:var(--ink)}

/* ---------- 产品详情 ---------- */
.pdp{padding:44px 0 0}
.pdp-top{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;padding-bottom:58px}
.pdp-plate{position:relative;height:392px;border:1px solid var(--line);background:linear-gradient(150deg,#F8FBFC,#E9F1F3);display:grid;place-items:center;overflow:hidden}
.pdp-plate .formula{font-family:var(--mono);font-size:44px;color:rgba(10,27,36,.24);z-index:2;letter-spacing:.02em}
.pdp-plate .hex{position:absolute;inset:0;opacity:.55}
.pdp-plate .tag{position:absolute;left:16px;top:16px;font-size:11px;padding:4px 9px;background:#fff;border:1px solid var(--line);border-radius:2px;color:var(--steel);z-index:3}
.pdp-plate .tag.r{left:auto;right:16px;background:var(--ink);color:#fff;border-color:var(--ink);font-family:var(--mono)}
.pdp-info .p-cas{font-size:13px}
.pdp-info h1{font-size:clamp(24px,2.4vw,32px);margin-top:10px;line-height:1.32}
.pdp-info .en{color:var(--muted);font-size:14px;margin-top:6px}
.pdp-price{margin-top:26px;padding:20px 22px;background:var(--mist);border-left:2px solid var(--acc);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.pdp-price .lbl{font-size:12px;color:var(--muted);letter-spacing:.04em}
.pdp-price .val{font-size:24px;font-weight:600;font-variant-numeric:tabular-nums;margin-top:2px}
.pdp-price .val small{font-size:12.5px;font-weight:400;color:var(--steel);margin-left:4px}
.pdp-specs{margin-top:24px;border-top:1px solid var(--line)}
.pdp-specs .r{display:grid;grid-template-columns:96px 1fr;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);font-size:13.5px}
.pdp-specs .r dt{color:var(--muted);font-size:12.5px}
.pdp-specs .r dd{margin:0;color:var(--ink);font-family:var(--mono);font-size:12.5px;letter-spacing:.02em}
.pdp-acts{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.pdp-note{margin-top:18px;font-size:12px;color:var(--muted);line-height:1.7;display:flex;gap:8px;align-items:flex-start}

.tabs{border-top:1px solid var(--line)}
.tab-bar{display:flex;gap:32px;border-bottom:1px solid var(--line)}
.tab-bar button{padding:18px 0;font-size:14.5px;font-weight:500;color:var(--muted);position:relative;transition:.2s}
.tab-bar button::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--ink);transform:scaleX(0);transition:transform .3s}
.tab-bar button.is-on{color:var(--ink);font-weight:600}
.tab-bar button.is-on::after{transform:scaleX(1)}
.tab-panel{display:none;padding:36px 0 10px;max-width:980px}
.tab-panel.is-on{display:block;animation:fadeUp .4s ease both}
.tab-panel p{color:var(--steel);line-height:1.95;margin-bottom:14px;font-size:14.5px}
.tab-panel h4{font-size:15.5px;margin:26px 0 10px}
.spec-table{width:100%;border-collapse:collapse;font-size:13.5px}
.spec-table th,.spec-table td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line)}
.spec-table th{background:var(--mist);font-weight:600;font-size:12.5px;color:var(--steel);letter-spacing:.03em}
.spec-table td{color:var(--steel)}
.spec-table td:first-child{color:var(--ink);font-weight:500}
.doc-list{display:grid;gap:10px}
.doc{display:flex;align-items:center;gap:14px;padding:14px 16px;border:1px solid var(--line);border-radius:2px;transition:.2s;background:#fff}
.doc:hover{border-color:var(--acc);background:#FBFDFD}
.doc .di{width:34px;height:34px;display:grid;place-items:center;background:var(--mist);color:var(--acc);border-radius:2px;flex:none}
.doc .dn{font-size:13.5px;font-weight:500}
.doc .dm{font-size:11.5px;color:var(--muted);font-family:var(--mono)}
.doc .dl{margin-left:auto;font-size:12px;color:var(--acc);font-weight:600}

@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ---------- 关于 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split-txt p{color:var(--steel);line-height:1.95;margin-bottom:16px;font-size:14.5px}
.split-txt .lead{font-size:17px;color:var(--ink);line-height:1.85}
.figure{position:relative;border:1px solid var(--line);background:linear-gradient(150deg,#F6FAFB,#E5EEF1);min-height:400px;display:grid;place-items:center;overflow:hidden}
.figure .cap{position:absolute;left:13px;bottom:-1px;background:var(--ink);color:rgba(255,255,255,.6);font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;padding:6px 11px;text-transform:uppercase}
.figure .kv-float{position:absolute;right:14px;top:14px;background:#fff;border:1px solid var(--line);padding:14px 16px;min-width:150px}
.figure .kv-float .n{font-size:26px;font-weight:600;letter-spacing:-.02em;line-height:1;font-variant-numeric:tabular-nums}
.figure .kv-float .l{font-size:11.5px;color:var(--muted);margin-top:5px}

.values{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.value{border-top:2px solid var(--ink);padding-top:20px}
.value .n{font-family:var(--mono);font-size:11px;color:var(--acc);letter-spacing:.16em}
.value h3{font-size:17px;margin-top:10px}
.value p{color:var(--steel);font-size:13.5px;margin-top:8px;line-height:1.8}

.timeline{position:relative;margin-top:10px}
.timeline::before{content:"";position:absolute;left:96px;top:8px;bottom:8px;width:1px;background:var(--line-d)}
.tl-item{display:grid;grid-template-columns:96px 1fr;gap:36px;padding:0 0 36px;position:relative}
.tl-item:last-child{padding-bottom:0}
.tl-item .yr{font-family:var(--mono);font-size:14px;color:var(--acc);letter-spacing:.04em;padding-top:1px}
.tl-item .bd{position:relative;padding-left:0}
.tl-item .bd::before{content:"";position:absolute;left:-41px;top:7px;width:9px;height:9px;border-radius:50%;background:#fff;border:2px solid var(--acc)}
.tl-item h4{font-size:16px}
.tl-item p{color:var(--steel);font-size:13.5px;margin-top:7px;line-height:1.8}

.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cert{border:1px solid var(--line);padding:26px 22px;background:#fff;transition:.3s}
.cert:hover{border-color:var(--acc);box-shadow:0 14px 30px rgba(10,27,36,.06)}
.cert .ci{width:38px;height:38px;color:var(--acc);margin-bottom:16px}
.cert h4{font-size:14.5px}
.cert p{font-size:12px;color:var(--muted);margin-top:6px;font-family:var(--mono);letter-spacing:.03em}

.wh-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.wh{border:1px solid var(--line);background:#fff}
.wh .hd{padding:22px 24px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.wh .hd h4{font-size:16px}
.wh .hd .code{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.1em}
.wh .bd{padding:20px 24px 24px}
.wh .row{display:flex;justify-content:space-between;font-size:12.5px;color:var(--steel);padding:5px 0}
.wh .row b{color:var(--ink);font-family:var(--mono);font-size:12px;font-weight:500}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:12.5px;color:var(--steel);margin-bottom:7px;letter-spacing:.02em}
.field label i{font-style:normal;color:var(--amber)}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:2px;padding:12px 14px;font-size:14px;outline:0;background:#fff;transition:.2s;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--acc);box-shadow:0 0 0 3px rgba(0,162,155,.1)}
.field textarea{min-height:132px;resize:vertical}
.form-note{font-size:12px;color:var(--muted);margin-top:14px;line-height:1.7}
.form-ok{display:none;padding:16px 18px;background:rgba(0,162,155,.08);border-left:2px solid var(--acc);font-size:13.5px;color:var(--acc-d);margin-top:16px}
.form-ok.is-on{display:block}

.info-card{border:1px solid var(--line);padding:24px 24px 22px;margin-bottom:18px;background:#fff;transition:.3s}
.info-card:hover{border-color:var(--line-d)}
.info-card .ic{display:flex;align-items:center;gap:9px;font-size:11.5px;letter-spacing:.12em;color:var(--muted);font-family:var(--mono);text-transform:uppercase}
.info-card .v{font-size:19px;font-weight:600;margin-top:12px;letter-spacing:-.01em}
.info-card .v.tel{font-family:var(--mono);font-size:21px}
.info-card .s{font-size:12.5px;color:var(--steel);margin-top:8px;line-height:1.75}

.branch-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.branch{border:1px solid var(--line);padding:26px 24px;background:#fff}
.branch .city{font-size:18px;font-weight:600;display:flex;align-items:center;gap:9px}
.branch .city span{font-family:var(--mono);font-size:10px;color:var(--muted);letter-spacing:.12em}
.branch .ad{font-size:13px;color:var(--steel);margin-top:12px;line-height:1.8}
.branch .ph{font-family:var(--mono);font-size:13px;margin-top:12px;color:var(--ink)}

/* ---------- 新闻列表 ---------- */
.news-layout{display:grid;grid-template-columns:1fr 300px;gap:56px;align-items:start;padding:56px 0 96px}
.news-item{display:grid;grid-template-columns:104px 1fr;gap:28px;padding:26px 0;border-bottom:1px solid var(--line);transition:.25s}
.news-item:hover{padding-left:8px}
.news-item .d{font-family:var(--mono);font-size:12px;color:var(--muted);line-height:1.6}
.news-item .d b{display:block;font-size:24px;color:var(--ink);font-weight:600;letter-spacing:-.02em}
.news-item h3{font-size:17.5px;line-height:1.55;transition:.2s}
.news-item:hover h3{color:var(--acc-d)}
.news-item p{color:var(--steel);font-size:13.5px;margin-top:8px;line-height:1.8}
.news-item .m{margin-top:12px;display:flex;gap:14px;font-size:11.5px;color:var(--muted)}
.news-item .m .cat{padding:2px 8px;background:var(--mist);border-radius:2px;color:var(--steel)}

/* ---------- 提示 ---------- */
.toast{position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);background:var(--ink);color:#fff;padding:13px 22px;border-radius:2px;font-size:13.5px;box-shadow:0 18px 40px rgba(0,0,0,.24);opacity:0;pointer-events:none;transition:.35s;z-index:200;display:flex;align-items:center;gap:10px}
.toast.is-on{opacity:1;transform:translate(-50%,0)}
.toast i{width:7px;height:7px;border-radius:50%;background:var(--acc);display:block}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(20px)}
.reveal.in{opacity:1;transform:none;transition:opacity .75s cubic-bezier(.2,.7,.2,1),transform .75s cubic-bezier(.2,.7,.2,1)}
.no-observer .reveal{opacity:1;transform:none}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1!important;transform:none!important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .wrap{width:calc(100% - 56px)}
  .p-grid{grid-template-columns:repeat(3,1fr)}
  .brand-wall{grid-template-columns:repeat(3,1fr)}
  .ind-grid{grid-template-columns:repeat(3,1fr);gap:1px}
  .news-grid{grid-template-columns:1fr 1fr}
  .news-main{grid-column:1/-1}
  .footer-top{grid-template-columns:1fr 1fr;gap:36px}
  .plp{grid-template-columns:230px 1fr;gap:32px}
}
@media (max-width:980px){
  .mainnav{display:none}
  .burger{display:flex}
  .nav-actions .btn{display:none}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{height:300px;order:2}
  .fc-b{display:none}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:36px}
  .pdp-top{grid-template-columns:1fr;gap:32px}
  .plp{grid-template-columns:1fr}
  .side{position:static}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .news-layout{grid-template-columns:1fr;gap:36px}
  .news-grid{grid-template-columns:1fr}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .wh-grid,.branch-grid,.values{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-left:0;padding-left:0;border-top:1px solid var(--line)}
  .stat:nth-child(-n+2){border-top:0}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:26px}
  .section{padding:64px 0}
}
@media (max-width:720px){
  .wrap{width:calc(100% - 36px)}
  .topbar .topbar-note{display:none}
  .topbar .wrap{justify-content:flex-end}
  .navbar-inner{height:66px}
  .p-grid,.p-grid--3{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:1fr}
  .svc-grid{grid-template-columns:1fr}
  .ind-grid{grid-template-columns:1fr}
  .brand-wall{grid-template-columns:repeat(2,1fr)}
  .form-row{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:20px}
  .hero{padding-top:48px}
  .hero-visual{height:250px}
  .fc-a{min-width:0;left:0;bottom:10px;padding:12px 14px}
  .search-box form{flex-wrap:wrap}
  .search-box button{width:100%}
  .news-item{grid-template-columns:1fr;gap:10px}
  .tl-item{grid-template-columns:64px 1fr;gap:20px}
  .timeline::before{left:64px}
  .tl-item .bd::before{left:-25px}
  .pdp-plate{height:280px}
  .pdp-plate .formula{font-size:30px}
  .tab-bar{gap:20px;overflow-x:auto}
  .stats-grid{grid-template-columns:1fr}
  .stat{border-top:1px solid var(--line)}
  .stat:nth-child(-n+2){border-top:1px solid var(--line)}
  .stat:first-child{border-top:0}
}