/* =========================================================
   江西昌胜环保新材料有限公司 · 官网样式
   ========================================================= */

:root{
  --navy:#082741;
  --navy-2:#0d3557;
  --blue:#1668b3;
  --blue-l:#2f8fdd;
  --gold:#c3922f;
  --gold-l:#e6bf74;
  --ink:#0e1e2c;
  --muted:#5a6c7d;
  --line:#e3ebf3;
  --bg:#ffffff;
  --soft:#f3f8fc;
  --tint:#e8f2fa;
  --shadow-sm:0 2px 10px rgba(10,40,70,.06);
  --shadow:0 18px 44px -18px rgba(10,40,70,.28);
  --shadow-lg:0 40px 90px -40px rgba(8,39,65,.45);
  --r:18px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Segoe UI",system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.22,.7,.24,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul{list-style:none}
::selection{background:var(--gold);color:#fff}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(18px,4vw,28px)}

/* ---------- 滚动进度 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:120;
  background:linear-gradient(90deg,var(--gold),var(--gold-l));
  box-shadow:0 0 12px rgba(195,146,47,.6);
  transition:width .1s linear;
}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  padding:14px 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s,color .3s;
  white-space:nowrap;
}
.btn .arw{transition:transform .3s var(--ease)}
.btn:hover .arw{transform:translateX(4px)}
.btn-gold{
  background:linear-gradient(135deg,var(--gold),var(--gold-l));
  color:#20160a;box-shadow:0 12px 26px -12px rgba(195,146,47,.85);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 18px 34px -12px rgba(195,146,47,.95)}
.btn-ghost{
  border:1px solid rgba(255,255,255,.32);color:#fff;background:rgba(255,255,255,.04);
}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%;justify-content:center}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .4s var(--ease),box-shadow .4s var(--ease),padding .4s var(--ease);
  padding:14px 0;
}
.nav::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.18),transparent);
  transition:opacity .4s;
}
.nav-inner{
  width:100%;max-width:1280px;margin:0 auto;padding:0 clamp(18px,4vw,32px);
  display:flex;align-items:center;gap:clamp(12px,1.4vw,22px);
}
.brand{
  display:flex;align-items:center;background:#fff;border-radius:12px;
  padding:7px 12px;box-shadow:var(--shadow-sm);flex-shrink:0;
  transition:transform .3s var(--ease);
}
.brand:hover{transform:translateY(-1px)}
.brand img{height:34px;width:auto}

.nav-links{display:flex;flex-wrap:nowrap;gap:clamp(10px,1.3vw,22px);margin-left:auto}
.nav-links a{
  position:relative;font-size:15px;color:rgba(255,255,255,.86);font-weight:500;
  padding:6px 2px;transition:color .3s;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--gold-l);border-radius:2px;transition:width .3s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{width:100%}

.nav-cta{display:flex;align-items:center;gap:14px;margin-left:8px}
.hotline{display:flex;align-items:center;gap:9px;color:#fff}
.hotline-ico{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  background:rgba(195,146,47,.18);border:1px solid rgba(230,191,116,.45);
  color:var(--gold-l);font-size:15px;
}
.hotline-txt{display:flex;flex-direction:column;line-height:1.2;font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap}
.hotline-txt em{font-style:normal;font-size:10.5px;color:rgba(255,255,255,.6);font-weight:400;letter-spacing:.14em}

.burger{display:none;width:44px;height:44px;border-radius:12px;flex-direction:column;gap:5px;align-items:center;justify-content:center;background:rgba(255,255,255,.1)}
.burger span{width:22px;height:2px;background:#fff;border-radius:2px;transition:.3s var(--ease)}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 滚动后白色导航 */
.nav.scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(16px);box-shadow:0 8px 30px -16px rgba(10,40,70,.35);padding:9px 0}
.nav.scrolled .nav-links a{color:#33475a}
.nav.scrolled .nav-links a:hover{color:var(--blue)}
.nav.scrolled .hotline{color:var(--ink)}
.nav.scrolled .hotline-ico{background:var(--tint);border-color:#cfe3f5;color:var(--blue)}
.nav.scrolled .hotline-txt em{color:var(--muted)}
.nav.scrolled .burger{background:var(--tint)}
.nav.scrolled .burger span{background:var(--navy)}
.nav.scrolled::after{opacity:0}

/* ---------- 语言切换 ---------- */
.lang-switch{position:relative;margin-left:6px}
.lang-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 12px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.02em;
  color:#fff;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  transition:background .3s,transform .3s;
}
.lang-btn:hover{background:rgba(255,255,255,.18)}
.lang-ico{font-size:14px;line-height:1}
.lang-btn .caret{font-size:9px;opacity:.8}
.nav.scrolled .lang-btn{color:var(--navy);background:var(--tint);border-color:#cfe3f5}
.nav.scrolled .lang-btn:hover{background:#dcebf8}
.lang-menu{
  position:absolute;top:calc(100% + 10px);right:0;min-width:160px;z-index:130;
  list-style:none;padding:6px;border-radius:14px;
  background:#fff;box-shadow:0 24px 50px -20px rgba(8,39,65,.5);
  opacity:0;visibility:hidden;transform:translateY(-8px);transition:.25s var(--ease);
}
.lang-menu.open{opacity:1;visibility:visible;transform:none}
.lang-menu li{
  padding:10px 14px;border-radius:10px;font-size:14px;font-weight:500;color:var(--navy);
  cursor:pointer;transition:background .2s,color .2s;
}
.lang-menu li:hover{background:var(--soft);color:var(--blue)}
.lang-menu li[data-lang="en"]::after{content:""}
@media (max-width:960px){
  .lang-btn{padding:8px 10px}
  .lang-switch{margin-left:8px}
}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;background:linear-gradient(160deg,#061e34 0%,#0a2f4f 45%,#0d3a60 100%);
  color:#fff;padding:clamp(120px,15vh,180px) 0 clamp(70px,9vw,110px);
  overflow:hidden;
}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55}
.orb-1{width:620px;height:620px;right:-140px;top:-180px;background:radial-gradient(circle,rgba(47,143,221,.5),transparent 70%)}
.orb-2{width:520px;height:520px;left:-160px;bottom:-220px;background:radial-gradient(circle,rgba(195,146,47,.35),transparent 70%)}
.grid-lines{
  position:absolute;inset:0;opacity:.14;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at 60% 40%,#000 10%,transparent 72%);
  mask-image:radial-gradient(ellipse at 60% 40%,#000 10%,transparent 72%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(30px,5vw,70px);align-items:center}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;letter-spacing:.16em;color:var(--gold-l);font-weight:500;
  padding:7px 16px;border-radius:999px;border:1px solid rgba(230,191,116,.3);
  background:rgba(230,191,116,.08);margin-bottom:26px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--gold-l);box-shadow:0 0 0 4px rgba(230,191,116,.18)}

.hero h1{
  font-size:clamp(38px,5.6vw,68px);line-height:1.12;letter-spacing:-.01em;
  font-weight:800;margin-bottom:24px;
}
.grad{
  background:linear-gradient(100deg,#e6bf74,#f1d9a6 55%,#c3922f);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:clamp(15px,1.4vw,17.5px);color:rgba(255,255,255,.78);max-width:560px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:46px}

.hero-stats{display:flex;gap:clamp(20px,3vw,44px);flex-wrap:wrap}
.stat{display:flex;flex-direction:column}
.stat b{font-size:clamp(26px,3vw,36px);font-weight:800;letter-spacing:-.02em;color:#fff;line-height:1.1}
.stat .plus{font-size:15px;color:var(--gold-l);font-weight:600;margin-left:3px;display:inline-block;vertical-align:top;margin-top:4px}
.stat em{font-style:normal;font-size:12.5px;color:rgba(255,255,255,.55);letter-spacing:.04em;margin-top:6px}
.stat{position:relative}
.stat:not(:last-child)::after{content:"";position:absolute;right:calc(-1*clamp(20px,3vw,44px)/2);top:10%;height:80%;width:1px;background:rgba(255,255,255,.14)}

/* 首屏视觉 */
.hero-visual{position:relative}
.visual-card{
  position:relative;border-radius:24px;overflow:hidden;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 50px 90px -40px rgba(0,0,0,.7);
  transform:perspective(1200px) rotateY(-6deg) rotateX(3deg);
  transition:transform .8s var(--ease);
}
.hero-visual:hover .visual-card{transform:perspective(1200px) rotateY(-2deg) rotateX(1deg)}
.visual-card img{width:100%;height:clamp(300px,36vw,430px);object-fit:cover;display:block}
.visual-glow{position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(6,30,52,.55));pointer-events:none}
.visual-tag{
  position:absolute;left:16px;bottom:14px;font-size:12px;letter-spacing:.04em;
  color:#fff;background:rgba(8,39,65,.55);border:1px solid rgba(255,255,255,.18);
  padding:6px 12px;border-radius:999px;backdrop-filter:blur(8px);
}
.chip{
  position:absolute;background:#fff;color:var(--ink);border-radius:14px;
  padding:12px 16px;box-shadow:0 24px 50px -20px rgba(4,22,40,.7);
  display:flex;flex-direction:column;line-height:1.25;z-index:2;
  animation:float 6s ease-in-out infinite;
}
.chip b{font-size:14.5px;font-weight:800;color:var(--navy)}
.chip span{font-size:11px;color:var(--muted);letter-spacing:.02em}
.chip-1{left:-22px;top:12%;animation-delay:-1s}
.chip-2{right:-16px;top:44%;animation-delay:-3s}
.chip-3{left:6%;bottom:-18px;animation-delay:-2s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

.scroll-hint{
  position:absolute;left:50%;bottom:22px;transform:translateX(-50%);
  width:26px;height:42px;border:1.5px solid rgba(255,255,255,.35);border-radius:14px;
  display:grid;place-items:center;
}
.scroll-hint span{width:4px;height:8px;border-radius:2px;background:var(--gold-l);animation:scrollDown 1.8s infinite}
@keyframes scrollDown{0%{opacity:0;transform:translateY(-6px)}50%{opacity:1}100%{opacity:0;transform:translateY(8px)}}

/* ---------- 信任条 ---------- */
.ticker{background:var(--navy);color:#fff;padding:26px 0}
.ticker-inner{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.tick{display:flex;align-items:center;gap:12px;padding-right:18px;border-right:1px solid rgba(255,255,255,.1)}
.tick:last-child{border-right:none}
.tick-ico{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;flex-shrink:0;
  background:rgba(195,146,47,.16);color:var(--gold-l);font-style:normal;font-size:15px;
  border:1px solid rgba(230,191,116,.25);
}
.tick b{display:block;font-size:14px;font-weight:600;letter-spacing:.01em}
.tick span{display:block;font-size:11.5px;color:rgba(255,255,255,.55);margin-top:2px}

/* ---------- 区块通用 ---------- */
.section{padding:clamp(64px,8.5vw,116px) 0;position:relative}
.section-head{max-width:760px}
.section-head.center{margin:0 auto;text-align:center}
.tag{
  display:inline-block;font-size:12px;letter-spacing:.22em;color:var(--gold);
  font-weight:700;margin-bottom:14px;position:relative;padding-left:26px;
}
.section-head.center .tag{padding-left:0}
.tag::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:16px;height:2px;background:var(--gold)}
.section-head.center .tag::before{display:none}
.section-head h2{
  font-size:clamp(28px,3.6vw,44px);line-height:1.2;font-weight:800;letter-spacing:-.01em;
  color:var(--navy);margin-bottom:16px;
}
.lead{font-size:clamp(15px,1.3vw,17px);color:var(--muted);line-height:1.8}
.section-head.center .lead{margin:0 auto}

/* ---------- 关于 ---------- */
.about{background:var(--bg)}
.about-grid{display:grid;grid-template-columns:1fr 1.06fr;gap:clamp(34px,5vw,72px);align-items:center}
.about-media .media-stack{position:relative;padding-bottom:44px;padding-right:34px}
.m-photo{border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
.m-main img{width:100%;height:clamp(340px,42vw,470px);object-fit:cover}
.m-sub{
  position:absolute;right:0;bottom:0;width:52%;border:7px solid #fff;
  border-radius:16px;box-shadow:var(--shadow-lg);
}
.m-sub img{width:100%;height:190px;object-fit:cover}
.m-badge{
  position:absolute;left:-14px;bottom:64px;background:linear-gradient(135deg,var(--gold),var(--gold-l));
  color:#20160a;border-radius:16px;padding:16px 20px;box-shadow:0 24px 40px -18px rgba(195,146,47,.8);
  display:flex;flex-direction:column;line-height:1.15;
}
.m-badge b{font-size:26px;font-weight:800}
.m-badge span{font-size:12px;letter-spacing:.06em;font-weight:600;margin-top:2px}

.about-copy .section-head h2{margin-bottom:18px}
.prose{margin:22px 0 28px;color:#3f5162;font-size:15.5px;line-height:1.9}
.prose p+p{margin-top:14px}
.feature-list{display:flex;flex-direction:column;gap:18px}
.feature-list li{display:flex;gap:14px}
.f-ico{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;display:grid;place-items:center;
  background:var(--tint);color:var(--blue);font-size:14px;
}
.feature-list b{display:block;font-size:15.5px;color:var(--navy);margin-bottom:2px}
.feature-list p{font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- 产品中心 ---------- */
.products{background:linear-gradient(180deg,var(--soft),#fff)}
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:54px}
.prod-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:28px 24px 24px;overflow:hidden;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s;
}
.prod-card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--gold),var(--gold-l));
  transition:width .45s var(--ease);
}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#cfe1f2}
.prod-card:hover::before{width:100%}
.prod-no{
  position:absolute;right:18px;top:16px;font-size:13px;font-weight:800;letter-spacing:.08em;
  color:#dbe7f2;
}
.prod-ico{width:54px;height:54px;margin-bottom:18px;position:relative}
.prod-ico::before{
  content:"";position:absolute;inset:0;
  clip-path:polygon(25% 4%,75% 4%,100% 50%,75% 96%,25% 96%,0 50%);
  background:linear-gradient(140deg,var(--c1,#1668b3),var(--c2,#2f8fdd));
  box-shadow:0 10px 20px -8px rgba(22,104,179,.5);
}
.prod-ico::after{
  content:"";position:absolute;inset:26%;
  clip-path:polygon(25% 4%,75% 4%,100% 50%,75% 96%,25% 96%,0 50%);
  background:rgba(255,255,255,.55);
}
[data-ico="superfine"]{--c1:#1b74c4;--c2:#4aa3e8}
[data-ico="nano"]{--c1:#0d5f9e;--c2:#2f8fdd}
[data-ico="light"]{--c1:#3f8f7a;--c2:#6fc4a9}
[data-ico="barium"]{--c1:#b07b2a;--c2:#e0b866}
[data-ico="kaolin"]{--c1:#7a6bb0;--c2:#a998e0}
[data-ico="talc"]{--c1:#5a7a94;--c2:#8fb0c9}
[data-ico="white"]{--c1:#8a97a6;--c2:#c3cfdb}
[data-ico="color"]{--c1:#c2542f;--c2:#e88a5c}
[data-ico="filler"]{--c1:#2f7d63;--c2:#59ac8c}
[data-ico="defoam"]{--c1:#3a6aa8;--c2:#6f9fd4}

.prod-card h3{font-size:18.5px;font-weight:700;color:var(--navy);letter-spacing:.01em}
.prod-card .en{font-size:11px;letter-spacing:.06em;color:#9aabb9;margin:3px 0 12px;text-transform:uppercase}
.prod-card .desc{font-size:13.5px;color:var(--muted);line-height:1.72;margin-bottom:16px;min-height:70px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips span{
  font-size:11.5px;font-weight:600;color:var(--blue);background:var(--tint);
  padding:4px 9px;border-radius:7px;letter-spacing:.02em;
}

.sub-band{
  margin-top:22px;display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  background:var(--navy);border-radius:var(--r);padding:8px;
}
.sub-item{display:flex;gap:14px;padding:24px 20px;align-items:flex-start}
.sub-ico{width:44px;height:44px;flex-shrink:0;position:relative}
.sub-ico::before{
  content:"";position:absolute;inset:0;border-radius:12px;
  background:linear-gradient(140deg,var(--c1),var(--c2));
}
.sub-item h4{color:#fff;font-size:15.5px;font-weight:700;margin-bottom:4px}
.sub-item p{color:rgba(255,255,255,.6);font-size:13px;line-height:1.7}

/* ---------- 技术指标 ---------- */
.specs{background:#fff}
.spec-tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin:44px 0 26px}
.spec-tab{
  padding:10px 20px;border-radius:999px;font-size:14px;font-weight:600;color:var(--muted);
  border:1px solid var(--line);background:#fff;transition:.3s var(--ease);
}
.spec-tab:hover{border-color:#bcd7ef;color:var(--blue)}
.spec-tab.active{
  background:linear-gradient(135deg,var(--navy-2),var(--blue));color:#fff;border-color:transparent;
  box-shadow:0 12px 24px -12px rgba(22,104,179,.8);
}
.spec-panels{position:relative}
.spec-panel{display:none;animation:fadeUp .5s var(--ease)}
.spec-panel.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.table-scroll{overflow-x:auto;border-radius:16px;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.spec-table{width:100%;border-collapse:collapse;font-size:14px;min-width:620px;background:#fff}
.spec-table thead th{
  background:linear-gradient(135deg,var(--navy-2),#114a78);color:#fff;font-weight:600;
  padding:15px 16px;text-align:left;letter-spacing:.03em;white-space:nowrap;
}
.spec-table tbody td{padding:12px 16px;border-bottom:1px solid #eef3f8;color:#37505f;white-space:nowrap}
.spec-table tbody td:first-child{color:#1d3c55;font-weight:600;background:#fafcfe}
.spec-table tbody tr:last-child td{border-bottom:none}
.spec-table tbody tr:hover td{background:#f5faff}
.spec-table tbody tr.hl td{background:rgba(195,146,47,.08);color:#8a5f13;font-weight:700}
.spec-table tbody tr.hl td:first-child{background:rgba(195,146,47,.14)}
.spec-note{margin-top:14px;font-size:13.5px;color:var(--muted);line-height:1.8;padding-left:14px;border-left:3px solid var(--gold)}
.spec-foot{text-align:center;margin-top:28px;font-size:13px;color:#93a4b3}

/* ---------- 研发 ---------- */
.rd{background:linear-gradient(180deg,#fff,var(--soft))}
.rd-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(34px,5vw,66px);align-items:center}
.rd-cards{display:flex;flex-direction:column;gap:14px;margin-top:28px}
.rd-card{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px;
  display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:16px;
  transition:.35s var(--ease);
}
.rd-card:hover{border-color:#cfe1f2;box-shadow:var(--shadow-sm);transform:translateX(4px)}
.rd-card b{
  grid-row:1/3;font-size:22px;font-weight:800;color:var(--tint);
  -webkit-text-stroke:1px #b9d4ea;letter-spacing:.02em;align-self:center;
}
.rd-card h4{font-size:15.5px;font-weight:700;color:var(--navy);margin-bottom:3px}
.rd-card p{font-size:13.5px;color:var(--muted);line-height:1.7}

.rd-photos{display:grid;grid-template-columns:1.16fr 1fr;gap:16px}
.rd-photos figure{border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);margin:0}
.rd-photos figure img{width:100%;height:100%;min-height:clamp(340px,34vw,430px);object-fit:cover;transition:transform .8s var(--ease)}
.rd-photos figure:hover img{transform:scale(1.05)}

/* ---------- 矿山 ---------- */
.mine{background:var(--navy);color:#fff;overflow:hidden;position:relative}
.mine::before{
  content:"";position:absolute;right:-10%;top:-30%;width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,143,221,.22),transparent 70%);filter:blur(40px);
}
.mine-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(34px,5vw,66px);align-items:center}
.mine .section-head h2{color:#fff}
.mine .lead{color:rgba(255,255,255,.72)}
.mine-collage{display:grid;grid-template-columns:1.4fr .8fr;grid-template-rows:1fr 1fr;gap:12px;height:clamp(340px,42vw,440px)}
.mine-collage figure{margin:0;border-radius:14px;overflow:hidden;box-shadow:0 24px 50px -24px rgba(0,0,0,.7)}
.mine-collage img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.mine-collage figure:hover img{transform:scale(1.06)}
.mc-1{grid-row:1/3}
.mine-points{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.mp{
  flex:1;min-width:120px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:14px;padding:16px 18px;
}
.mp b{display:block;font-size:17px;color:var(--gold-l);font-weight:700;margin-bottom:3px}
.mp span{font-size:12.5px;color:rgba(255,255,255,.62);line-height:1.6}

/* ---------- 荣誉 ---------- */
.honor{background:#fff}
.honor-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(30px,4.5vw,60px);align-items:center;margin-top:50px}
.honor-media{border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.honor-media img{width:100%;display:block}
.honor-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.hl-item{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:#fff;
  transition:.3s var(--ease);
}
.hl-item:hover{border-color:#cfe1f2;background:var(--soft);transform:translateY(-2px)}
.hl-item span{font-size:13.5px;font-weight:600;color:#24455f;line-height:1.4}
.hl-item em{font-style:normal;font-size:11px;color:var(--gold);font-weight:700;white-space:nowrap;letter-spacing:.02em}

.patent{margin-top:44px;background:var(--soft);border-radius:var(--r);padding:clamp(24px,4vw,40px);display:grid;grid-template-columns:.6fr 1.4fr;gap:32px;align-items:center}
.patent-head h3{font-size:22px;color:var(--navy);font-weight:800;margin-bottom:8px}
.patent-head p{font-size:14px;color:var(--muted);line-height:1.7}
.patent img{width:100%;border-radius:10px;box-shadow:var(--shadow-sm)}

/* ---------- 图册 ---------- */
.catalog{background:linear-gradient(180deg,var(--soft),#fff)}
.gallery{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:48px}
.gal-item{
  position:relative;border-radius:12px;overflow:hidden;background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
  padding:0;
}
.gal-item img{width:100%;aspect-ratio:1.42;object-fit:cover;object-position:top center;transition:transform .7s var(--ease)}
.gal-item span{
  position:absolute;left:0;right:0;bottom:0;padding:22px 12px 9px;
  font-size:11.5px;color:#fff;text-align:left;
  background:linear-gradient(180deg,transparent,rgba(6,26,45,.85));
  letter-spacing:.02em;
}
.gal-item:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#cfe1f2}
.gal-item:hover img{transform:scale(1.06)}

/* ---------- 联系 ---------- */
.contact{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.contact::before{
  content:"";position:absolute;left:-8%;bottom:-30%;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(195,146,47,.22),transparent 70%);filter:blur(40px);
}
.contact-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:clamp(34px,5vw,64px);align-items:start}
.contact .section-head h2{color:#fff}
.contact .lead{color:rgba(255,255,255,.72)}
.contact-info{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:30px}
.ci{
  display:flex;gap:12px;align-items:center;padding:14px 16px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  transition:.3s var(--ease);
}
a.ci:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.ci-wide{grid-column:1/3}
.ci-ico{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;display:grid;place-items:center;
  background:rgba(195,146,47,.16);color:var(--gold-l);font-size:15px;border:1px solid rgba(230,191,116,.22);
}
.ci em{font-style:normal;display:block;font-size:11px;color:rgba(255,255,255,.55);letter-spacing:.06em}
.ci b{display:block;font-size:14.5px;font-weight:600;color:#fff;margin-top:2px;letter-spacing:.01em}

.qr-card{
  margin-top:16px;display:flex;gap:16px;align-items:center;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  border-radius:14px;padding:16px;
}
.qr-img{width:82px;height:82px;object-fit:contain;border-radius:8px;background:#fff;padding:3px;flex-shrink:0}
.qr-card b{font-size:14.5px;color:#fff}
.qr-card p{font-size:12.5px;color:rgba(255,255,255,.6);line-height:1.6;margin-top:3px}

.contact-form-wrap{background:#fff;border-radius:22px;padding:clamp(26px,3.4vw,40px);box-shadow:0 50px 100px -40px rgba(0,0,0,.6);color:var(--ink)}
.form-head h3{font-size:22px;color:var(--navy);font-weight:800;margin-bottom:4px}
.form-head p{font-size:13px;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:14px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.field label{display:block;font-size:12.5px;font-weight:600;color:#3b5164;margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;
  font-family:inherit;font-size:14px;color:var(--ink);background:#fbfdff;
  transition:border-color .3s,box-shadow .3s,background .3s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(22,104,179,.1);
}
.field textarea{resize:vertical;min-height:96px}
.field input.err,.field select.err{border-color:#e06b5a;box-shadow:0 0 0 3px rgba(224,107,90,.12)}
.form-tip{font-size:11.5px;color:#9aabb9;text-align:center;margin-top:10px}
.form-ok{
  display:none;margin-top:16px;padding:16px 18px;border-radius:12px;
  background:#eef7f1;border:1px solid #cfe7da;text-align:left;
}
.form-ok.show{display:block;animation:fadeUp .4s var(--ease)}
.form-ok .fo-t{display:block;font-size:13.5px;font-weight:700;color:#1c7a4d;line-height:1.55}
.form-ok .fo-d{font-size:12.5px;color:#4b6b5c;line-height:1.7;margin-top:6px}
.fo-acts{display:flex;flex-wrap:wrap;gap:10px;margin-top:13px}
.fo-btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 16px;border-radius:9px;border:1px solid #cfe7da;background:#fff;
  color:#1c6b48;font-family:inherit;font-size:13px;font-weight:600;
  text-decoration:none;cursor:pointer;transition:background .25s,border-color .25s,color .25s;
}
.fo-btn:hover{background:#e4f2ea;border-color:#a9d5bd}
.fo-btn-solid{background:var(--navy);border-color:var(--navy);color:#fff}
.fo-btn-solid:hover{background:#0d3556;border-color:#0d3556}
.fo-btn:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

/* ---------- 页脚 ---------- */
.footer{background:#061d31;color:rgba(255,255,255,.7);padding:clamp(48px,6vw,72px) 0 0}
.footer-top{display:grid;grid-template-columns:1.6fr .8fr .8fr 1.3fr;gap:clamp(24px,4vw,48px);padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1)}
.f-logo{display:inline-block;background:#fff;border-radius:10px;padding:7px 12px;margin-bottom:16px}
.f-logo img{height:30px;width:auto}
.f-brand p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.55);max-width:340px}
.f-col h5{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.04em}
.f-col a{display:block;font-size:13.5px;color:rgba(255,255,255,.6);padding:5px 0;transition:color .3s,padding-left .3s}
.f-col a:hover{color:var(--gold-l);padding-left:4px}
.f-contact p{font-size:13.5px;color:rgba(255,255,255,.6);line-height:1.9}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0;font-size:12.5px;color:rgba(255,255,255,.4)}
.f-legal{color:rgba(255,255,255,.32)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;z-index:90;
  background:linear-gradient(135deg,var(--navy-2),var(--blue));color:#fff;font-size:20px;
  box-shadow:0 16px 34px -14px rgba(10,40,70,.7);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:.4s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{transform:translateY(-3px)}

/* ---------- 灯箱 ---------- */
.lightbox{
  position:fixed;inset:0;z-index:200;background:rgba(5,20,35,.94);
  display:flex;align-items:center;justify-content:center;padding:5vh 5vw;
  opacity:0;visibility:hidden;transition:.35s var(--ease);
}
.lightbox.open{opacity:1;visibility:visible}
.lightbox img{max-width:92vw;max-height:86vh;border-radius:10px;box-shadow:0 40px 90px -30px #000;object-fit:contain}
.lb-close,.lb-nav{
  position:absolute;color:#fff;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  border-radius:50%;display:grid;place-items:center;transition:.3s;backdrop-filter:blur(8px);
}
.lb-close{top:26px;right:26px;width:46px;height:46px;font-size:26px;line-height:1}
.lb-nav{top:50%;transform:translateY(-50%);width:52px;height:52px;font-size:32px;line-height:1}
.lb-prev{left:20px}
.lb-next{right:20px}
.lb-close:hover,.lb-nav:hover{background:var(--gold);border-color:var(--gold);color:#20160a}
.lb-count{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.7);font-size:13px;letter-spacing:.1em}

/* ---------- 动画 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
[data-delay="1"]{transition-delay:.08s}
[data-delay="2"]{transition-delay:.16s}
[data-delay="3"]{transition-delay:.24s}
[data-delay="4"]{transition-delay:.32s}

/* ---------- 越南语导航：项较长，常态略压缩并提前切汉堡 ---------- */
.lang-vi .nav-links a{font-size:14px}
.lang-vi .nav-links{gap:10px}
/* 越南语在 1320px 以下即切汉堡（其他语言仍 1080px 才切），彻底避免挤出屏幕 */
@media (max-width:1320px){
  .lang-vi .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(78vw,340px);
    background:#07253d;flex-direction:column;justify-content:center;gap:6px;
    padding:80px 34px;transform:translateX(105%);transition:transform .45s var(--ease);
    box-shadow:-30px 0 60px -20px rgba(0,0,0,.5);margin:0;
  }
  .lang-vi .nav-links.open{transform:none}
  .lang-vi .nav-links a{font-size:18px;padding:14px 0;color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
  .lang-vi .nav-links a::after{display:none}
  .lang-vi .burger{display:flex}
  .lang-vi .nav-cta .btn{display:none}
}

/* ---------- 响应式 ---------- */
/* 中/日文导航字符更宽：1280 以下逐级压缩，确保菜单始终单行不换行 */
@media (max-width:1280px){
  .nav-inner{gap:14px}
  .brand{padding:6px 10px}
  .brand img{height:30px}
  .nav-links{gap:clamp(8px,1.05vw,15px)}
  .nav-links a{font-size:13.5px}
  .nav-cta{gap:10px;margin-left:2px}
  .hotline-txt{font-size:13.5px}
  .hotline-ico{width:30px;height:30px;font-size:13px}
  .btn-sm{padding:9px 14px;font-size:13px}
}
@media (max-width:1100px){
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .ticker-inner{grid-template-columns:repeat(3,1fr);row-gap:22px}
  .tick:nth-child(3){border-right:none}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr}
  .f-contact{grid-column:1/4}
}
/* 再窄一档：隐藏热线号码换空间，确保导航仍是单行 */
@media (max-width:1180px){
  .hotline{display:none}
  .nav-links{gap:8px}
  .nav-links a{font-size:13px}
}
/* 1080 以下改用汉堡菜单，彻底避免挤压换行 */
@media (max-width:1080px){
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(78vw,340px);
    background:#07253d;flex-direction:column;justify-content:center;gap:6px;
    padding:80px 34px;transform:translateX(105%);transition:transform .45s var(--ease);
    box-shadow:-30px 0 60px -20px rgba(0,0,0,.5);margin:0;
  }
  .nav-links.open{transform:none}
  .nav-links a{font-size:18px;padding:14px 0;color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-links a::after{display:none}
  .burger{display:flex}
  .nav-cta .btn{display:none}
}
@media (max-width:960px){
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(78vw,340px);
    background:#07253d;flex-direction:column;justify-content:center;gap:6px;
    padding:80px 34px;transform:translateX(105%);transition:transform .45s var(--ease);
    box-shadow:-30px 0 60px -20px rgba(0,0,0,.5);margin:0;
  }
  .nav-links.open{transform:none}
  .nav-links a{font-size:18px;padding:14px 0;color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-links a::after{display:none}
  .burger{display:flex}
  .hotline{display:none}
  .nav-cta .btn{display:none}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{max-width:520px;margin:0 auto;width:100%}
  .about-grid,.rd-grid,.mine-grid,.honor-grid,.contact-grid{grid-template-columns:1fr}
  .about-media{order:2}
  .about-copy{order:1}
  .rd-media{order:2}
  .mine-media{order:2}
  .honor-grid{gap:30px}
  .patent{grid-template-columns:1fr;gap:20px}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .mine-collage{height:340px}
  .sub-band{grid-template-columns:1fr}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .hero{padding-top:112px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{justify-content:center}
  .hero-stats{gap:18px 22px}
  .stat:not(:last-child)::after{display:none}
  .stat b{font-size:24px}
  .chip-1{left:-8px;top:6%}
  .chip-2{right:-8px;top:42%}
  .chip-3{display:none}
  .ticker-inner{grid-template-columns:1fr 1fr}
  .tick{border-right:none;padding-right:0}
  .prod-grid{grid-template-columns:1fr}
  .prod-card .desc{min-height:0}
  .spec-tabs{gap:6px}
  .spec-tab{padding:8px 14px;font-size:12.5px}
  .honor-list{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .contact-info{grid-template-columns:1fr}
  .ci-wide{grid-column:1}
  .gallery{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1fr 1fr}
  .f-brand,.f-contact{grid-column:1/3}
  .footer-bottom{flex-direction:column}
  .rd-photos{grid-template-columns:1fr}
  .rd-photos figure img{min-height:220px;height:220px}
  .mine-collage{grid-template-columns:1fr 1fr;height:auto}
  .mc-1{grid-row:auto;grid-column:1/3}
  .mc-1 img{height:200px}
  .mc-2 img,.mc-3 img{height:130px}
  .about-media .media-stack{padding-right:0}
  .m-sub{position:relative;width:100%;margin-top:12px;border-radius:14px}
  .m-sub img{height:160px}
  .m-badge{left:auto;right:12px;bottom:auto;top:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
}