/* 乾晟超硬产品站基础层 */

:root{
  --bg:#0a0e14;
  --bg-soft:#0d1620;
  --surface:#111824;
  --surface-2:#161f2e;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);

  --text:#e8edf4;
  --text-soft:#9fb0c3;
  --text-dim:#5e6f84;

  --cyan:#C9CDD2;
  --cyan-dim:#9da4ad;
  --gold:#ffb800;
  --gold-dim:#e0a000;

  --grad-dark:linear-gradient(180deg,#0d131c 0%,#0a0e14 100%);
  --grad-line:linear-gradient(90deg,transparent,var(--cyan),transparent);
  --grad-cyan:linear-gradient(135deg,#d9dde1 0%,#9fa6ae 100%);
  --grad-gold:linear-gradient(135deg,#ffb800 0%,#e0a000 100%);

  --shadow:0 20px 60px -20px rgba(0,0,0,.7);
  --shadow-cyan:0 0 0 1px rgba(201,205,210,.22),0 18px 50px -18px rgba(0,0,0,.45);

  --wrap:1320px;
  --radius:14px;
  --radius-lg:22px;
  --header-h:84px;

  --ff-display:'Saira','Oswald','Barlow Condensed',-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --ff-body:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --ff-mono:'JetBrains Mono','SFMono-Regular',Consolas,monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--ff-body);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:15px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none;transition:color .25s}
a:hover{color:var(--cyan)}
ul,ol,li{list-style:none}
img{max-width:100%;display:block;border:0}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;outline:none;background:none;border:0}
table{border-collapse:collapse;width:100%}
h1,h2,h3,h4{font-family:var(--ff-display);font-weight:700;line-height:1.25}

/* ---------- 布局与通用 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}
.sec{padding:110px 0;position:relative}
.sec.light{background:var(--bg-soft)}
.sec-sm{padding:80px 0}
.sec-head{max-width:760px;margin-bottom:56px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--ff-display);font-size:13px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--cyan);font-weight:600;margin-bottom:18px;
}
.sec-head .eyebrow::before{content:"";width:34px;height:2px;background:var(--cyan);flex:none}
.sec-title{font-size:clamp(30px,4vw,52px);letter-spacing:-.01em;color:#fff}
.sec-title b,.sec-title .cyan{color:var(--cyan);font-weight:700}
.sec-title .gold{color:var(--gold)}
.sec-sub{color:var(--text-soft);margin-top:18px;font-size:16px;line-height:1.9}
.grid-bg{
  position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 30%,transparent 75%);
}
.glow{position:absolute;pointer-events:none;z-index:0;opacity:0}

.btn{
  display:inline-flex;align-items:center;gap:12px;padding:15px 30px;border-radius:2px;
  font-family:var(--ff-display);font-size:15px;font-weight:600;letter-spacing:.04em;
  cursor:pointer;border:1px solid transparent;line-height:1.2;
  transition:background .3s,color .3s,border-color .3s,box-shadow .3s,transform .3s;
}
.btn-primary{background:var(--gold);color:#141414}
.btn-primary:hover{background:#ffd15a;color:#141414;box-shadow:var(--shadow-cyan);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn .ar{width:16px;height:16px;display:inline-flex}
.btn .ar svg{width:100%;height:100%}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}
.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}
/* 首页 hero 入场：与 CMS 一致；静态镜像若启用 hero 亦可 */
.hero .reveal{opacity:0;transform:translateY(38px);animation:qsHeroIn .9s cubic-bezier(.16,1,.3,1) forwards;transition:none}
.hero .reveal.d1{animation-delay:.12s}
.hero .reveal.d2{animation-delay:.24s}
.hero .reveal.d3{animation-delay:.36s}
.hero .reveal.d4{animation-delay:.48s}
@keyframes qsHeroIn{from{opacity:0;transform:translateY(38px)}to{opacity:1;transform:none}}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- 头部（对齐现网 qsdiamond.com） ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:1000;
  display:flex;align-items:center;transition:.4s;
}
.site-header::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:rgba(10,14,20,0);backdrop-filter:blur(0);
  border-bottom:1px solid transparent;transition:.4s;
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  width:94%;max-width:1480px;margin:0 auto;padding:0;gap:24px;
}
.site-header.scrolled{height:70px}
.site-header.scrolled::before{
  background:rgba(10,14,20,.85);backdrop-filter:blur(18px);border-bottom-color:var(--line);
}
.site-header .logo{flex:none;display:flex;align-items:center}
.site-header .logo img{height:42px;width:auto}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav a{
  display:flex;align-items:center;padding:0 18px;height:var(--header-h);
  font-family:var(--ff-display);font-size:16px;font-weight:500;letter-spacing:.02em;
  color:var(--text-soft);white-space:nowrap;position:relative;transition:.3s;border-radius:0;
}
.site-header.scrolled .main-nav a{height:70px}
.main-nav a::after{
  content:"";position:absolute;left:18px;right:18px;bottom:22px;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .3s;
}
.main-nav a:hover{color:#fff;background:transparent}
.main-nav a:hover::after,.main-nav li.active>a::after{transform:scaleX(1)}
.main-nav li.active>a{color:#fff}
.main-nav .caret{width:10px;height:10px;opacity:.5}
.header-cta{display:flex;align-items:center;gap:14px;flex:none}
.header-tel{
  display:flex;align-items:center;gap:10px;
  font-family:var(--ff-display);font-size:18px;font-weight:600;color:#fff;
  padding:0;border:0;border-radius:0;background:none;
}
.header-tel:hover{color:var(--cyan)}
.header-tel svg{
  width:34px;height:34px;padding:9px;box-sizing:border-box;flex:none;
  border-radius:50%;border:1px solid var(--cyan);color:var(--cyan);
}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:.3s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 首页首屏 ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg .slide{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transition:opacity 1.6s ease;
}
.hero-bg .slide.on{opacity:1}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,14,20,.91) 0%,rgba(10,14,20,.64) 44%,rgba(10,14,20,.25) 100%),
             linear-gradient(180deg,rgba(10,14,20,.55) 0%,transparent 35%,rgba(10,14,20,.88) 100%);
}
.hero-inner{position:relative;z-index:2;width:94%;max-width:1480px;margin:0 auto;padding:0}
.hero-tag{
  display:inline-flex;align-items:center;gap:12px;padding:9px 18px;border-radius:50px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.03);backdrop-filter:blur(8px);
  font-family:var(--ff-display);font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:30px;
}
.hero-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--gold)}
.hero h1{
  font-size:clamp(40px,6.5vw,92px);line-height:1.04;margin:0;letter-spacing:-.02em;
  display:flex;flex-wrap:wrap;gap:0 22px;align-items:baseline;color:#fff;max-width:14ch;
}
.hero h1 b{color:#fff;font-weight:700}
.hero h1 .gold{color:var(--gold);font-weight:700}
.hero .lead{margin:28px 0 40px;font-size:clamp(16px,1.5vw,20px);color:var(--text-soft);max-width:600px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:0}
.hero-side{
  position:absolute;right:34px;top:50%;transform:translateY(-50%) rotate(90deg);transform-origin:right center;
  font-family:var(--ff-display);font-size:12px;letter-spacing:.3em;color:var(--text-dim);z-index:2;
}
.hero-scroll{
  position:absolute;left:50%;bottom:34px;transform:translateX(-50%);z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  font-family:var(--ff-display);font-size:11px;letter-spacing:.24em;color:var(--text-dim);
}
.hero-scroll .mouse{width:18px;height:28px;border:1.5px solid var(--line-strong);border-radius:10px;position:relative;background:transparent}
.hero-scroll .mouse::before{content:"";position:absolute;top:6px;left:50%;transform:translateX(-50%);width:4px;height:7px;background:var(--cyan);border-radius:2px}

/* ---------- 提示条 ---------- */
.trust-bar{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0}
.trust-bar .lab{display:block;font-size:12.5px;line-height:1.85;color:var(--text-dim)}

/* ---------- 卡片通用 ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;transition:transform .35s,border-color .35s,background .35s;position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-6px);border-color:var(--line-strong);background:var(--surface-2)}
.card .idx{font-family:var(--ff-display);font-size:13px;color:var(--cyan);letter-spacing:.12em}
.card h3{font-size:20px;margin:16px 0 12px}
.card p{color:var(--text-soft);font-size:14.5px;line-height:1.85}
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g5{grid-template-columns:repeat(5,1fr)}

/* 关于 */
.about-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.about-visual{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:4/3;background:var(--grad-dark);
}
.about-visual img{width:100%;height:100%;object-fit:cover}
.stat-row{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:40px}
.stat b{display:block;font-family:var(--ff-display);font-size:36px;color:#fff;line-height:1}
.stat b em,.stat .cyan{color:var(--cyan);font-style:normal}
.stat span{display:block;font-size:13px;color:var(--text-dim);margin-top:10px}

/* 产品矩阵卡 */
.prod-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .35s,border-color .35s;
}
.prod-card:hover{transform:translateY(-6px);border-color:rgba(255,184,0,.45);box-shadow:var(--shadow)}
.prod-card.is-disabled{cursor:default}
.prod-card.is-disabled:hover{transform:none;border-color:var(--line);box-shadow:none}
.prod-card .pic{
  aspect-ratio:4/3;background:var(--grad-dark);position:relative;
  display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line);
}
.prod-card .pic img{width:100%;height:100%;object-fit:cover}
.prod-card .pic .ph{
  font-family:var(--ff-mono);font-size:11px;letter-spacing:.16em;color:var(--text-dim);
  display:flex;flex-direction:column;align-items:center;gap:12px;
}
.prod-card .pic .ph svg{width:34px;height:34px;opacity:.35}
.prod-card .body{padding:26px}
.prod-card h3{font-size:18px;margin-bottom:10px}
.prod-card p{color:var(--text-soft);font-size:14px;line-height:1.8;min-height:50px}
.prod-card .more{
  margin-top:18px;display:inline-flex;align-items:center;gap:8px;
  font-family:var(--ff-display);font-size:13px;letter-spacing:.06em;color:var(--cyan);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  font-family:var(--ff-mono);font-size:11px;letter-spacing:.06em;padding:5px 11px;border-radius:999px;
  border:1px solid var(--line-strong);color:var(--text-soft);
}
.tag.gold{border-color:rgba(201,205,210,.4);color:var(--cyan)}

/* 设备与原材料清单使用横向产品图，便于扫描型号与材料形态。 */
.catalog-grid .prod-card .pic{aspect-ratio:16/9}
.catalog-grid .prod-card .body{padding:30px}
.catalog-grid .prod-card h3{font-size:22px}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.flow .step{padding:36px 30px;border-right:1px solid var(--line);background:var(--surface);transition:background .3s}
.flow .step:last-child{border-right:0}
.flow .step:hover{background:var(--surface-2)}
.flow .step b{display:block;font-family:var(--ff-display);font-size:34px;color:rgba(201,205,210,.28);line-height:1}
.flow .step h3{font-size:17px;margin:16px 0 10px}
.flow .step p{font-size:13.5px;color:var(--text-soft);line-height:1.8}

/* 新闻 */
.news-item{
  display:flex;gap:28px;padding:26px 0;border-bottom:1px solid var(--line);align-items:baseline;
  transition:padding-left .3s;
}
.news-item:hover{padding-left:10px}
.news-item time{font-family:var(--ff-mono);font-size:12.5px;color:var(--text-dim);flex:none;width:96px}
.news-item h3{font-size:16.5px;font-weight:600;font-family:var(--ff-body);line-height:1.7}

/* CTA 区 */
.cta{background:var(--grad-dark);border-top:1px solid var(--line);text-align:center;position:relative;overflow:hidden}
.cta h2{font-size:clamp(26px,3vw,40px)}
.cta p{color:var(--text-soft);margin-top:18px;max-width:640px;margin-left:auto;margin-right:auto}
.cta .btns{display:flex;justify-content:center;gap:16px;margin-top:36px;flex-wrap:wrap}

/* ---------- 内页横幅 / 面包屑（对齐 CMS pages.css / about-hero） ---------- */
.page-hero{
  position:relative;height:440px;min-height:440px;padding:0;overflow:hidden;margin-top:0;
  background:var(--grad-dark);border-bottom:1px solid var(--line);display:flex;align-items:center;
}
.page-hero .pbg{position:absolute;inset:0;z-index:0}
.page-hero .pbg img{width:100%;height:100%;object-fit:cover;object-position:center right}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,10,15,.9),rgba(7,10,15,.7) 50%,rgba(7,10,15,.92));
}
.page-hero .grid-bg{opacity:.5;z-index:1}
.page-hero .glow{z-index:1}
.page-hero .ph-inner{position:relative;z-index:3;width:94%;max-width:1480px;margin:0 auto;padding:40px 0 0}
.page-hero .eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--ff-display);letter-spacing:.26em;text-transform:uppercase;
  font-size:13px;color:var(--cyan);margin-bottom:18px;
}
.page-hero .eyebrow::before{content:"";width:30px;height:2px;background:var(--cyan);flex:none}
.page-hero h1{font-size:clamp(36px,5vw,68px);margin-top:0;color:#fff;letter-spacing:-.01em}
.page-hero h1 .hl{color:var(--cyan)}
.page-hero-sub{
  font-size:clamp(18px,2vw,26px);color:var(--text-soft);margin-top:12px;
  font-weight:300;letter-spacing:.06em;max-width:720px;line-height:1.55;
}
.page-hero .lead{color:var(--text-soft);margin-top:20px;max-width:680px;font-size:16.5px;line-height:1.8}
.page-hero .crumb{
  margin-top:22px;padding:0;background:transparent;border:0;
  font-size:14px;color:var(--text-dim);line-height:2;
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.page-hero .crumb a{color:var(--text-soft)}
.page-hero .crumb a:hover{color:var(--cyan)}
.page-hero .crumb .sep{opacity:.4}
.crumb{background:var(--surface);border-bottom:1px solid var(--line)}
.crumb .wrap{display:flex;align-items:center;gap:10px;padding:16px 32px;font-size:13px;color:var(--text-dim);flex-wrap:wrap}
.crumb a{color:var(--text-soft)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{opacity:.4}
.page-main{padding:0}

/* ---------- 详情页：锚点导航 ---------- */
.anchor-nav{
  position:sticky;top:68px;z-index:60;background:rgba(10,14,20,.9);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.anchor-nav .wrap{display:flex;gap:6px;overflow-x:auto;padding:0 32px;scrollbar-width:none}
.anchor-nav .wrap::-webkit-scrollbar{display:none}
.anchor-nav a{
  flex:none;padding:16px 16px;font-size:14px;color:var(--text-soft);
  border-bottom:2px solid transparent;white-space:nowrap;
}
.anchor-nav a:hover{color:var(--text)}
.anchor-nav a.active{color:var(--cyan);border-bottom-color:var(--cyan)}

/* ---------- 详情页：区块 ---------- */
.pd-sec{padding:96px 0;position:relative;scroll-margin-top:120px}
.pd-sec.alt{background:var(--bg-soft)}
.pd-sec.surface{background:var(--surface)}
.lede{font-size:clamp(17px,1.9vw,23px);line-height:1.85;color:var(--text);max-width:900px}
.lede .gold{color:var(--gold)}
.body-text{color:var(--text-soft);font-size:15.5px;line-height:1.95;max-width:860px}
.body-text p+p{margin-top:18px}

/* 核心参数四宫格 */
.param-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.param-cell{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 28px;position:relative;overflow:hidden;
}
.param-cell::before{content:"";position:absolute;left:0;top:0;width:3px;height:100%;background:var(--cyan)}
.param-cell .k{font-size:13px;color:var(--text-dim);letter-spacing:.04em}
.param-cell .v{
  font-family:var(--ff-display);font-size:clamp(28px,3vw,40px);color:var(--text);
  line-height:1.1;margin:14px 0 8px;
}
.param-cell .u{font-family:var(--ff-mono);font-size:12.5px;color:var(--cyan)}
.param-cell .note{font-size:12px;color:var(--text-dim);margin-top:14px;line-height:1.7}

/* 参数展开面板 */
.param-toggle{
  margin-top:28px;display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  font-family:var(--ff-display);font-size:13px;letter-spacing:.06em;color:var(--cyan);
  border:1px solid rgba(201,205,210,.35);border-radius:999px;padding:11px 22px;transition:background .25s;
}
.param-toggle:hover{background:rgba(201,205,210,.08)}
.param-panel{display:none;margin-top:28px}
.param-panel.open{display:block}

/* 数据表 */
.spec-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface)}
.spec-table table{width:100%;font-size:14.5px}
.spec-table th,.spec-table td{padding:16px 22px;text-align:left;border-bottom:1px solid var(--line)}
.spec-table thead th{
  background:var(--surface-2);font-family:var(--ff-mono);font-size:12px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--text-soft);font-weight:500;
}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody tr:hover{background:rgba(255,255,255,.02)}
.spec-table td.num{font-family:var(--ff-mono);color:var(--text)}
.spec-table td.k{color:var(--text-soft);width:34%}
.table-scroll{overflow-x:auto}

/* 数据口径标记 */
.src{
  display:inline-flex;align-items:center;gap:6px;font-size:11.5px;padding:3px 10px;border-radius:4px;
  font-family:var(--ff-mono);letter-spacing:.04em;vertical-align:middle;
}
.src-fixed{background:rgba(201,205,210,.12);color:var(--cyan);border:1px solid rgba(201,205,210,.3)}
.src-ref{background:rgba(31,155,255,.12);color:#8ec4f5;border:1px solid rgba(31,155,255,.28)}
.src-custom{background:rgba(255,255,255,.06);color:var(--text-soft);border:1px solid var(--line-strong)}
.src-hist{background:rgba(184,134,11,.14);color:#d8b45c;border:1px solid rgba(184,134,11,.34)}
.src-legend{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;font-size:12.5px;color:var(--text-dim)}
.src-legend span{display:inline-flex;align-items:center;gap:8px}

/* 规格 / 尺寸 */
.size-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:16px}
.size-cell{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:24px 20px;text-align:center;
  transition:border-color .3s,transform .3s;
}
.size-cell:hover{border-color:var(--cyan);transform:translateY(-4px)}
.size-cell b{display:block;font-family:var(--ff-mono);font-size:20px;color:var(--text)}
.size-cell span{display:block;font-size:12px;color:var(--text-dim);margin-top:8px}
.size-bar{margin-top:34px;border:1px solid var(--line);border-radius:var(--radius);padding:32px;background:var(--surface)}
.size-bar .row{display:flex;align-items:center;gap:20px}
.size-bar .row+.row{margin-top:22px}
.size-bar .lbl{width:120px;flex:none;font-size:13.5px;color:var(--text-soft)}
.size-bar .track{flex:1;height:6px;border-radius:999px;background:rgba(255,255,255,.07);position:relative;overflow:hidden}
.size-bar .fill{position:absolute;left:0;top:0;height:100%;background:var(--cyan);border-radius:999px}
.size-bar .val{font-family:var(--ff-mono);font-size:13px;color:var(--cyan);width:120px;text-align:right;flex:none}

/* 特性卡（图标网格） */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.feat{background:var(--surface);padding:38px 32px;transition:background .3s}
.feat:hover{background:var(--surface-2)}
.feat .ico{width:44px;height:44px;color:var(--cyan);margin-bottom:22px}
.feat .ico svg{width:100%;height:100%}
.feat h3{font-size:18px;margin-bottom:12px}
.feat p{font-size:14px;color:var(--text-soft);line-height:1.85}
.feat .kv{margin-top:18px;font-family:var(--ff-mono);font-size:12.5px;color:var(--cyan)}

/* 工艺 / 加工能力步骤 */
.proc-list{counter-reset:proc}
.proc{
  display:grid;grid-template-columns:82px 1fr;gap:28px;padding:32px 0;border-bottom:1px solid var(--line);
}
.proc:last-child{border-bottom:0}
.proc .no{
  font-family:var(--ff-display);font-size:34px;color:rgba(201,205,210,.3);line-height:1;
}
.proc h3{font-size:19px;margin-bottom:12px}
.proc p{color:var(--text-soft);font-size:14.5px;line-height:1.9}
.proc .metrics{display:flex;flex-wrap:wrap;gap:26px;margin-top:18px}
.proc .metrics div{font-size:13px;color:var(--text-dim)}
.proc .metrics b{display:block;font-family:var(--ff-mono);font-size:17px;color:var(--text);margin-bottom:4px}

/* 应用场景 */
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.app{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);
  transition:transform .35s,border-color .35s;
}
.app:hover{transform:translateY(-6px);border-color:var(--line-strong)}
.app .top{
  padding:28px 30px 0;display:flex;align-items:center;gap:14px;
}
.app .top .ico{width:26px;height:26px;color:var(--cyan);flex:none}
.app .top h3{font-size:17.5px}
.app .bd{padding:18px 30px 30px}
.app .bd p{font-size:14px;color:var(--text-soft);line-height:1.85}
.app .bd ul{margin-top:16px;display:grid;gap:10px}
.app .bd li{position:relative;padding-left:16px;font-size:13.5px;color:var(--text-dim)}
.app .bd li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--cyan)}

/* 质量与检测 */
.qc-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.qc-list{display:grid;gap:14px}
.qc-item{
  display:flex;gap:16px;padding:22px 26px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);align-items:flex-start;
}
.qc-item .ico{width:22px;height:22px;color:var(--cyan);flex:none;margin-top:2px}
.qc-item h4{font-size:15.5px;margin-bottom:8px}
.qc-item p{font-size:13.5px;color:var(--text-soft);line-height:1.8}

/* 解决方案连接 */
.solu-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.solu{
  display:block;padding:34px 30px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);transition:border-color .3s,transform .3s;
}
.solu:hover{border-color:var(--cyan);transform:translateY(-5px)}
.solu .idx{font-family:var(--ff-display);font-size:12px;color:var(--cyan)}
.solu h3{font-size:18px;margin:14px 0 12px}
.solu p{font-size:14px;color:var(--text-soft);line-height:1.85}

/* 图片占位 */
.figure{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--grad-dark);
  aspect-ratio:16/10;display:flex;align-items:center;justify-content:center;position:relative;
}
.figure img{width:100%;height:100%;object-fit:cover}
.figure .ph{display:flex;flex-direction:column;align-items:center;gap:14px;color:var(--text-dim)}
.figure .ph svg{width:40px;height:40px;opacity:.4}
.figure .ph span{font-family:var(--ff-mono);font-size:11.5px;letter-spacing:.14em}
.figure-cap{margin-top:14px;font-size:12.5px;color:var(--text-dim);line-height:1.8}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.reverse>*:first-child{order:2}

/* 咨询表单 */
.form-box{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:48px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.form-item{display:flex;flex-direction:column;gap:10px}
.form-item.full{grid-column:1/-1}
.form-item label{font-size:13px;color:var(--text-soft)}
.form-item input,.form-item select,.form-item textarea{
  background:var(--bg);border:1px solid var(--line-strong);border-radius:8px;padding:13px 16px;
  font-size:14.5px;color:var(--text);transition:border-color .25s;
}
.form-item input:focus,.form-item select:focus,.form-item textarea:focus{border-color:var(--cyan)}
.form-item textarea{min-height:120px;resize:vertical}
.form-note{margin-top:22px;font-size:12.5px;color:var(--text-dim);line-height:1.85}
.form-actions{margin-top:30px;display:flex;gap:16px;flex-wrap:wrap;align-items:center}

/* 弹窗 */
.modal{
  position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:24px;
  background:rgba(4,7,11,.78);backdrop-filter:blur(8px);
}
.modal.open{display:flex}
.modal-box{
  width:100%;max-width:560px;background:var(--surface);border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);padding:40px;box-shadow:var(--shadow);max-height:88vh;overflow-y:auto;
}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:26px}
.modal-head h3{font-size:22px}
.modal-close{width:34px;height:34px;border-radius:50%;border:1px solid var(--line-strong);cursor:pointer;color:var(--text-soft);flex:none;transition:.25s}
.modal-close:hover{color:var(--cyan);border-color:var(--cyan);transform:rotate(90deg)}

/* Tabs */
.tabhead{display:flex;gap:8px;border-bottom:1px solid var(--line);margin-bottom:38px;overflow-x:auto}
.tabhead button{
  padding:14px 22px;font-size:15px;color:var(--text-soft);cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap;
}
.tabhead button.on{color:var(--cyan);border-bottom-color:var(--cyan)}
.tabpanel{display:none}
.tabpanel.on{display:block}

/* 边界声明 */
.notice{
  border:1px solid rgba(201,205,210,.28);background:rgba(201,205,210,.05);border-radius:var(--radius);
  padding:32px 34px;display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:start;
}
.notice .ico{width:26px;height:26px;color:var(--cyan);flex:none;margin-top:2px}
.notice h3{font-size:17px;margin-bottom:14px}
.notice ul{display:grid;gap:11px}
.notice li{position:relative;padding-left:16px;font-size:14px;color:var(--text-soft);line-height:1.85}
.notice li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:50%;background:var(--cyan)}

/* ---------- 页脚 ---------- */
.site-footer{background:#070a0f;border-top:1px solid var(--line);position:relative;overflow:hidden}
.site-footer .fglow{position:absolute;top:0;right:0;width:460px;height:300px;max-width:50%;background:var(--cyan);filter:blur(160px);opacity:.1;pointer-events:none;z-index:0}
.footer-top{
  position:relative;z-index:2;display:grid;grid-template-columns:1.3fr 1fr 1fr 1.3fr;gap:48px;
  padding:76px 0 56px;
}
.footer-brand .logo img{width:170px;margin-bottom:26px}
.footer-brand p{font-size:13.5px;color:var(--text-dim);line-height:1.9;max-width:280px}
.fcol h4{font-family:var(--ff-body);font-size:15px;font-weight:600;margin-bottom:22px;color:var(--text)}
.fcol h4::after{content:"";display:block;width:26px;height:2px;background:var(--cyan);margin-top:10px}
.fcol ul{display:grid;gap:13px}
.fcol a,.fcol li{font-size:13.5px;color:var(--text-dim)}
.fcol a:hover{color:var(--cyan)}
.fcontact li{display:flex;gap:12px;align-items:flex-start;line-height:1.8}
.fcontact svg{width:18px;height:18px;color:var(--cyan);flex:none;margin-top:2px}
.ewm{margin-top:20px;display:flex;gap:18px}
.ewm figure{width:104px}
.ewm img{width:104px;height:104px;border-radius:6px;background:#fff;padding:4px}
.ewm figcaption{font-size:11.5px;color:var(--text-dim);margin-top:9px;text-align:center}
.footer-bottom{
  position:relative;z-index:2;border-top:1px solid var(--line);padding:24px 0;
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-dim);
}
.footer-bottom a:hover{color:var(--cyan)}
.to-top{
  position:fixed;right:26px;bottom:26px;width:46px;height:46px;border-radius:50%;z-index:70;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  background:var(--surface-2);border:1px solid var(--line-strong);color:var(--text-soft);
  opacity:0;pointer-events:none;transition:.3s;
}
.to-top.on{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--cyan);color:#04221f;border-color:var(--cyan)}
.to-top svg{width:18px;height:18px}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .footer-top{grid-template-columns:1fr 1fr;gap:44px}
  .g4,.param-grid{grid-template-columns:repeat(2,1fr)}
  .g5{grid-template-columns:repeat(3,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow .step:nth-child(2n){border-right:0}
  .flow .step:nth-child(-n+2){border-bottom:1px solid var(--line)}
}
@media (max-width:1024px){
  :root{--header-h:68px}
  /* backdrop-filter 会为 position:fixed 后代建立包含块，抽屉必须相对视口定位 */
  .site-header::before,.site-header.scrolled::before{
    backdrop-filter:none;background:rgba(10,14,20,.96);border-bottom-color:var(--line);
  }
  .main-nav{
    position:fixed;top:68px;left:0;right:0;bottom:0;background:rgba(10,14,20,.98);
    margin:0;padding:24px 0;overflow-y:auto;transform:translateX(100%);transition:transform .35s;z-index:1001;
  }
  .main-nav.open{transform:none}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav a{height:auto;padding:17px 32px;font-size:16px;border-bottom:1px solid var(--line)}
  .main-nav a::after{display:none}
  .nav-toggle{display:flex}
  .header-tel{display:none}
  .site-header{height:68px}
  .about-layout,.split,.qc-grid{grid-template-columns:1fr;gap:40px}
  .split.reverse>*:first-child{order:0}
  .g3,.feat-grid,.app-grid,.solu-grid{grid-template-columns:repeat(2,1fr)}
  .hero-side{display:none}
  .anchor-nav{top:68px}
}
@media (max-width:768px){
  .wrap{padding:0 20px}
  .hero-inner,.page-hero .ph-inner,.site-header .wrap{padding-left:20px;padding-right:20px}
  .page-hero .ph-inner{padding-top:40px}
  .crumb .wrap{padding:14px 20px}
  .anchor-nav .wrap{padding:0 20px}
  .sec{padding:72px 0}
  .pd-sec{padding:64px 0}
  .page-hero{height:360px;min-height:360px;padding:0}
  .g2,.g3,.g4,.g5,.param-grid,.feat-grid,.app-grid,.solu-grid,.form-grid,.flow{grid-template-columns:1fr}
  .flow .step{border-right:0;border-bottom:1px solid var(--line)}
  .flow .step:last-child{border-bottom:0}
  .footer-top{grid-template-columns:1fr;gap:38px;padding:56px 0 40px}
  .form-box{padding:30px 24px}
  .modal-box{padding:28px 24px}
  .stat-row{grid-template-columns:1fr;gap:16px}
  .proc{grid-template-columns:1fr;gap:14px}
  .news-item{flex-direction:column;gap:8px}
  .news-item time{width:auto}
  .card{padding:26px}
  .notice{grid-template-columns:1fr}
  .catalog-grid .prod-card .body{padding:24px}
}

/* 官网视觉校准：钛金黄是唯一品牌强调色，蓝青色仅保留在图片本身。 */
:root{--radius:4px;--radius-lg:6px;--cyan:#c9cdd2;--line:rgba(255,255,255,.12);--line-strong:rgba(255,255,255,.28)}
.hero-bg .slide{filter:grayscale(.28) saturate(.72) contrast(1.04)}
.hero-tag{border-radius:2px;background:rgba(8,10,14,.42);color:#d5d7db}
.hero-tag .dot{background:var(--gold);box-shadow:none}
.hero h1 .gold,.sec-title .gold{color:var(--gold)}
.main-nav a::after,.sec-head .eyebrow::before,.fcol h4::after{background:var(--gold)}
.main-nav a:hover,.main-nav li.active>a,.header-tel:hover,.more,.tag.gold,.anchor-nav a.active{color:var(--gold)}
.header-tel svg{border-color:var(--gold);color:var(--gold)}
.about-visual,.card,.prod-card,.param-cell,.figure,.app,.solu,.size-cell,.form-box{border-radius:4px}
.card:hover,.prod-card:hover,.app:hover,.solu:hover{transform:none;border-color:rgba(255,184,0,.55)}
.prod-card .pic{background:#0d1117}
.tag{border-radius:2px}
.param-cell::before,.size-bar .fill,.hero-scroll .mouse::before{background:var(--gold)}
.anchor-nav a.active{border-bottom-color:var(--gold)}