/* ============================================================
   九翔电子 · 全站共享样式
   设计令牌：铜（产品材质）+ 墨蓝黑 + 基板绿 + Logo 蓝（品牌辅助色）
   ============================================================ */
:root{
  --ink:#1A3A52;          /* 深蓝灰 · 正文与深色元素 */
  --sky:#2E8FD6;          /* 天空蓝 · 主背景色 */
  --sky-hi:#5FB2EF;
  --sky-deep:#1F7BC0;
  --ink-soft:#1F5F94;
  --copper:#C97C4A;
  --copper-hi:#E8A971;
  --copper-deep:#8F5230;
  --board:#2C5247;
  --glass:#FFFFFF;       /* 纯白 */
  --paper:#FFFFFF;
  --blue:#1E5C9E;        /* 取自商标 J/E 字母 */
  --blue-hi:#4A8FD4;
  --blue-deep:#0C3D6F;
  --line:rgba(18,42,64,.13);
  --line-dark:rgba(238,244,250,.14);
  --copper-grad:linear-gradient(105deg,#8F5230 0%,#C97C4A 30%,#F0BD8B 50%,#C97C4A 70%,#8F5230 100%);
  --brand-grad:linear-gradient(105deg,#0C3D6F,#2C6FB5 45%,#C97C4A 55%,#F0BD8B);
  --disp:'Noto Serif SC','Songti SC','SimSun',serif;
  --body:'Noto Serif SC','Songti SC','SimSun',serif;
  --mono:'IBM Plex Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:#000;background:#FFFFFF;line-height:1.8;font-weight:700;padding-top:68px}
img{max-width:100%}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--copper);outline-offset:3px}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ===== 页面进入过渡（仅透明度：transform 会使 main 成为 fixed 弹窗的包含块，导致弹窗无法相对视口居中） ===== */
@keyframes pageIn{from{opacity:0}to{opacity:1}}
main{animation:pageIn .45s ease}

/* ===== 顶栏 ===== */
header{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(31,123,192,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-dark);transition:background .3s,box-shadow .3s}
header.scrolled{background:rgba(23,101,161,.97);box-shadow:0 6px 24px rgba(0,0,0,.35)}
header.scrolled .nav{height:58px}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;transition:height .3s}
.logo{display:flex;align-items:center;gap:12px;color:#F4F8FC}
.logo img{height:40px;width:auto;display:block;transition:height .3s}
header.scrolled .logo img{height:34px}
.logo-text{line-height:1.1}
.logo-name{font-family:var(--disp);font-size:20px;letter-spacing:2px;display:block}
.logo-en{font-family:var(--mono);font-size:9.5px;letter-spacing:1.6px;color:var(--copper-hi);display:block;margin-top:2px}
nav ul{display:flex;gap:6px;list-style:none;align-items:center}
nav a{color:rgba(238,244,250,.75);font-size:14.5px;letter-spacing:1px;transition:color .2s;padding:8px 14px;border-radius:2px;position:relative;display:block}
nav a::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:linear-gradient(90deg,var(--blue-hi),var(--copper-hi));transform:scaleX(0);transform-origin:left;transition:transform .25s}
nav a:hover{color:var(--copper-hi)}
nav a:hover::after{transform:scaleX(1)}
nav a[aria-current="page"]{color:#fff}
nav a[aria-current="page"]::after{transform:scaleX(1)}
.nav-cta{border:1px solid var(--copper);color:var(--copper-hi)!important;padding:8px 20px!important;transition:all .2s}
.nav-cta::after{display:none}
.nav-cta:hover{background:var(--copper);color:var(--ink)!important}
.nav-cta[aria-current="page"]{background:var(--copper);color:var(--ink)!important}
.menu-btn{display:none;background:none;border:none;color:var(--glass);font-size:26px;cursor:pointer;padding:4px 10px}

/* ===== 页脚 ===== */
footer{background:#FFFFFF;color:rgba(0,0,0,.7);border-top:2px solid var(--line);padding:48px 0 30px;font-size:13.5px}
.foot-top{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;padding-bottom:30px;border-bottom:1px solid var(--line)}
.foot-brand img{height:44px;margin-bottom:12px}
.foot-brand .fb-name{font-family:var(--disp);font-size:19px;letter-spacing:2px;color:#000}
.foot-brand .fb-en{font-family:var(--mono);font-size:10.5px;letter-spacing:2px;color:var(--copper-deep);margin:3px 0 12px}
.foot-brand p{font-weight:600;font-size:13px;max-width:30em}
.foot-col h4{font-family:var(--mono);font-size:11px;letter-spacing:2.5px;color:rgba(0,0,0,.5);margin-bottom:14px}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.foot-col a:hover{color:var(--copper-hi)}
.foot-bottom{padding-top:22px;font-family:var(--mono);font-size:11.5px;letter-spacing:1px;color:rgba(0,0,0,.45);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ===== 返回顶部 ===== */
.to-top{position:fixed;right:26px;bottom:26px;width:46px;height:46px;border-radius:3px;border:1px solid rgba(201,124,74,.5);background:rgba(18,42,64,.9);color:var(--copper-hi);font-size:18px;cursor:pointer;z-index:60;opacity:0;pointer-events:none;transform:translateY(12px);transition:opacity .3s,transform .3s,background .2s;backdrop-filter:blur(6px)}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{background:var(--copper);color:var(--ink)}
.to-top:active{transform:scale(.94)}

/* ===== 通用 ===== */
section{padding:88px 0}
.sec-head{margin-bottom:52px;max-width:680px}
.sec-eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:4px;color:var(--copper-deep);margin-bottom:14px;display:flex;align-items:center;gap:12px}
.sec-eyebrow::before{content:"";width:36px;height:1px;background:linear-gradient(90deg,var(--blue),var(--copper))}
h2{font-family:var(--disp);font-size:clamp(28px,3.2vw,40px);font-weight:700;letter-spacing:2px;line-height:1.35}
.sec-head p{margin-top:16px;color:rgba(18,42,64,.65);font-weight:600}
.on-dark .sec-eyebrow{color:var(--copper-deep)}
.on-dark .sec-head p{color:rgba(0,0,0,.65)}
.btn{display:inline-block;padding:14px 34px;font-size:15px;letter-spacing:2px;border-radius:2px;transition:all .25s;cursor:pointer;border:1px solid transparent;font-family:var(--body)}
.btn:active{transform:scale(.96)}
.btn-copper{background:var(--copper-grad);background-size:200% 100%;color:#1a0f07;font-weight:700}
.btn-copper:hover{background-position:100% 0}
.btn-ghost{border-color:rgba(0,0,0,.4);color:#000}
.btn-ghost:hover{border-color:var(--copper);color:var(--copper-deep)}
.btn-ghost-dark{border-color:rgba(18,42,64,.3);color:var(--ink)}
.btn-ghost-dark:hover{border-color:var(--copper);color:var(--copper-deep)}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ===== 内页头图（含动态效果） ===== */
.page-hero{background:#FFFFFF;color:#000;padding:72px 0 56px;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 50% 70% at 85% 10%,rgba(46,143,214,.08),transparent 60%),repeating-linear-gradient(90deg,transparent 0 118px,rgba(26,58,82,.04) 118px 119px);pointer-events:none}
.page-hero::after{content:"";position:absolute;right:-10%;top:-30%;width:46vw;height:46vw;max-width:520px;max-height:520px;background:radial-gradient(circle,rgba(46,143,214,.09),transparent 65%);animation:glowDrift 14s ease-in-out infinite;pointer-events:none}
.page-hero .wrap{position:relative;z-index:1}
@keyframes phIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.crumbs{font-family:var(--mono);font-size:12px;letter-spacing:2px;color:rgba(0,0,0,.6);margin-bottom:18px;animation:phIn .5s ease both}
.crumbs a{color:var(--copper-deep);font-weight:700;border-bottom:1px solid rgba(143,82,48,.45);padding-bottom:1px}
.crumbs a:hover{color:var(--copper);border-bottom-color:var(--copper)}
.crumbs span{color:var(--copper-deep)}
.page-hero h1{font-family:var(--disp);font-size:clamp(32px,4vw,48px);font-weight:700;letter-spacing:2px;line-height:1.3;animation:phIn .55s ease .1s both;position:relative;display:inline-block;padding-bottom:14px}
.page-hero h1::after{content:"";position:absolute;left:0;bottom:0;height:3px;width:76px;background:linear-gradient(90deg,var(--blue-hi),var(--copper-hi));transform-origin:left;animation:lineGrow .7s cubic-bezier(.22,.9,.3,1) .45s both}
@keyframes lineGrow{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.page-hero .ph-sub{margin-top:12px;color:rgba(0,0,0,.65);font-weight:600;max-width:40em;animation:phIn .55s ease .22s both}

/* ===== 首页首屏 ===== */
.hero{background:#FFFFFF;color:#000;padding:80px 0 90px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 118px,rgba(26,58,82,.04) 118px 119px);pointer-events:none}
@keyframes glowDrift{0%,100%{transform:translate(0,0)}50%{transform:translate(-60px,30px)}}
.hero-glow{position:absolute;right:-8%;top:-10%;width:55vw;height:55vw;max-width:640px;max-height:640px;background:radial-gradient(circle,rgba(46,143,214,.10),rgba(201,124,74,.05) 45%,transparent 65%);animation:glowDrift 16s ease-in-out infinite;pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:4px;color:var(--copper-deep);margin-bottom:22px;display:flex;align-items:center;gap:12px}
.eyebrow::before{content:"";width:36px;height:1px;background:linear-gradient(90deg,var(--blue-hi),var(--copper))}
h1.hero-title{font-family:var(--disp);font-size:clamp(36px,4.4vw,56px);line-height:1.28;letter-spacing:2px;font-weight:700;margin-bottom:24px}
h1.hero-title .cu{background:linear-gradient(105deg,#8F5230,#C97C4A 55%,#8F5230);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:16.5px;color:rgba(0,0,0,.75);max-width:32em;font-weight:600;margin-bottom:38px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-logo{height:60px;width:auto;margin-bottom:26px;display:block}

/* ===== 改进版 CCL 剖面（分层爆炸视图） ===== */
.ccl2{--gap:6px;perspective:1100px}
.ccl2-stage{transform:rotateX(10deg);transform-style:preserve-3d;transition:transform .6s ease}
.ccl2.exploded{--gap:22px}
.ccl2-row{display:grid;grid-template-columns:minmax(0,1fr) 34px minmax(150px,190px);align-items:center;margin-bottom:var(--gap);transition:margin .6s cubic-bezier(.22,.9,.3,1);cursor:pointer;border:none;background:none;width:100%;padding:0;text-align:left;font-family:var(--body)}
.ccl2-row:last-child{margin-bottom:0}
.ccl2-bar{position:relative;border-radius:2px;transition:transform .35s,filter .35s,opacity .35s}
.ccl2-bar::after{content:"";position:absolute;left:0;right:0;top:100%;height:7px;background:rgba(0,0,0,.38);border-radius:0 0 2px 2px;transform:skewX(-42deg) translateX(-3px);transform-origin:top}
.b-cu{height:22px;background:var(--copper-grad);box-shadow:inset 0 1px 0 rgba(255,255,255,.35),inset 0 -2px 3px rgba(0,0,0,.35)}
.b-pp{height:15px;background:repeating-linear-gradient(45deg,#3a4a44 0 6px,#2C5247 6px 12px)}
.b-core{height:62px;background:linear-gradient(180deg,#24423A,#1D362F);overflow:hidden}
.b-core::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 13px,rgba(238,244,250,.06) 13px 14px),repeating-linear-gradient(0deg,transparent 0 13px,rgba(238,244,250,.06) 13px 14px)}
.ccl2-lead{height:1px;background:rgba(0,0,0,.3);position:relative;transition:background .3s}
.ccl2-lead::after{content:"";position:absolute;right:-1px;top:-2.5px;width:6px;height:6px;border-radius:50%;background:rgba(0,0,0,.35);transition:background .3s}
.ccl2-label{padding-left:12px;line-height:1.45;min-width:0}
.ccl2-label b{display:block;font-size:13.5px;font-weight:700;color:#000;letter-spacing:.5px}
.ccl2-label span{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.8px;color:rgba(0,0,0,.55);overflow-wrap:break-word;white-space:normal}
.ccl2-row:hover .ccl2-bar,.ccl2-row:focus-visible .ccl2-bar{transform:translateX(6px);filter:brightness(1.15)}
.ccl2-row:hover .ccl2-lead,.ccl2-row:hover .ccl2-lead::after{background:var(--copper-hi)}
.ccl2.focused .ccl2-row:not(.active) .ccl2-bar{opacity:.32;filter:saturate(.5)}
.ccl2.focused .ccl2-row:not(.active) .ccl2-label{opacity:.4}
.ccl2-row.active .ccl2-bar{transform:translateX(10px) scale(1.02);filter:brightness(1.2);box-shadow:0 0 0 1px var(--copper-hi),0 8px 24px rgba(201,124,74,.3)}
.ccl2-row.active .ccl2-lead,.ccl2-row.active .ccl2-lead::after{background:var(--copper-hi)}
.ccl2-row.active .ccl2-label b{color:var(--copper-hi)}
.ccl2-label{transition:opacity .35s}
/* 入场：逐层滑入 */
@keyframes layerIn{from{opacity:0;transform:translateX(-36px)}to{opacity:1;transform:none}}
.ccl2-row{animation:layerIn .6s ease both}
/* 信息卡 */
.ccl2-info{margin-top:20px;background:#FFFFFF;border:1px solid var(--line);border-left:3px solid var(--copper);border-radius:3px;padding:16px 18px;min-height:92px;transition:opacity .3s}
.ccl2-info .ci-name{font-size:14.5px;font-weight:700;color:#000;margin-bottom:2px}
.ccl2-info .ci-en{font-family:var(--mono);font-size:10.5px;letter-spacing:1.2px;color:var(--copper-deep);margin-bottom:8px}
.ccl2-info p{font-size:13px;color:rgba(0,0,0,.68);font-weight:600;line-height:1.65}
.ccl2-ctrl{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.ccl2-btn{border:1px solid rgba(0,0,0,.35);background:transparent;color:rgba(0,0,0,.75);font-family:var(--mono);font-size:11px;letter-spacing:1.5px;padding:8px 16px;border-radius:2px;cursor:pointer;transition:all .2s}
.ccl2-btn:hover{border-color:var(--copper-hi);color:var(--copper-hi)}
.ccl2-btn:active{transform:scale(.95)}
.ccl2-caption{font-family:var(--mono);font-size:10.5px;letter-spacing:2.5px;color:rgba(0,0,0,.45);margin-top:14px}

/* —— 板材切换器 —— */
.ccl2-switch{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.ccl2-nav{width:38px;height:38px;flex:none;border:1px solid rgba(0,0,0,.3);background:#fff;color:rgba(0,0,0,.7);font-size:22px;line-height:1;border-radius:3px;cursor:pointer;transition:all .2s}
.ccl2-nav:hover{border-color:var(--copper-hi);color:var(--copper-hi);background:rgba(201,124,74,.1)}
.ccl2-nav:active{transform:scale(.92)}
.ccl2-boardname{text-align:center;min-width:0}
.ccl2-boardname b{display:block;font-family:var(--disp);font-size:19px;font-weight:700;letter-spacing:2px;color:#000}
.ccl2-boardname span{display:block;font-family:var(--mono);font-size:10px;letter-spacing:1.5px;color:var(--copper-deep);margin-top:2px}
.ccl2-dots{display:flex;gap:8px;justify-content:center;margin-top:16px}
.ccl2-dot{width:8px;height:8px;padding:0;border-radius:4px;border:none;background:rgba(0,0,0,.22);cursor:pointer;transition:all .3s}
.ccl2-dot:hover{background:rgba(0,0,0,.45)}
.ccl2-dot.active{width:26px;background:linear-gradient(90deg,var(--blue-hi),var(--copper-hi))}
.ccl2-stage{transition:opacity .18s ease,transform .18s ease}
.ccl2-stage.switching{opacity:0;transform:translateX(-14px)}
/* —— 新增材料层配色 —— */
.b-pp-tg{height:15px;background:repeating-linear-gradient(45deg,#33455A 0 6px,#263849 6px 12px)}
.b-core-tg{height:62px;background:linear-gradient(180deg,#2A3D50,#223140);position:relative;overflow:hidden}
.b-core-tg::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 13px,rgba(238,244,250,.06) 13px 14px),repeating-linear-gradient(0deg,transparent 0 13px,rgba(238,244,250,.06) 13px 14px)}
.b-pp-hf{height:15px;background:repeating-linear-gradient(45deg,#39835C 0 6px,#2A6647 6px 12px)}
.b-core-hf{height:62px;background:linear-gradient(180deg,#2E6B4F,#245641);position:relative;overflow:hidden}
.b-core-hf::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 13px,rgba(238,244,250,.07) 13px 14px),repeating-linear-gradient(0deg,transparent 0 13px,rgba(238,244,250,.07) 13px 14px)}
.b-diel{height:14px;background:linear-gradient(180deg,#EDE8DA,#D9D3C2);box-shadow:inset 0 -1px 2px rgba(0,0,0,.2)}
.b-al{height:46px;background:linear-gradient(105deg,#7E868F 0%,#B9C1CA 30%,#E8ECF0 50%,#B9C1CA 70%,#7E868F 100%);box-shadow:inset 0 1px 0 rgba(255,255,255,.5),inset 0 -3px 4px rgba(0,0,0,.25)}

/* ===== 数据带 ===== */
.stats{background:#FFFFFF;color:#000;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:34px 26px;border-left:1px solid var(--line)}
.stat:first-child{border-left:none}
.stat b{font-family:var(--disp);font-size:38px;font-weight:700;color:var(--sky-deep);display:block;line-height:1.15}
.stat span{font-size:13px;color:rgba(26,58,82,.62);letter-spacing:1px}

/* ===== 卡片通用 ===== */
.card{background:var(--paper);border:1px solid var(--line);border-radius:3px;padding:30px 28px;position:relative;overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--copper-grad);transform:scaleX(0);transform-origin:left;transition:transform .35s}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(18,42,64,.09);border-color:rgba(201,124,74,.35)}
.card:hover::before{transform:scaleX(1)}

/* ===== 应用领域 ===== */
.industry-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.ind{background:var(--paper);border:1px solid var(--line);border-radius:3px;padding:22px 16px;text-align:center;transition:transform .25s,border-color .25s}
.ind:hover{transform:translateY(-3px);border-color:rgba(30,92,158,.45)}
.ind svg{width:30px;height:30px;margin-bottom:10px}
.ind b{display:block;font-size:14px;font-weight:700}
.ind span{font-family:var(--mono);font-size:9.5px;letter-spacing:1px;color:rgba(18,42,64,.42)}

/* ===== CTA 带 ===== */
.cta-band{background:#FFFFFF;color:#000;position:relative;overflow:hidden;padding:76px 0;border-top:1px solid var(--line)}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 45% 90% at 90% 50%,rgba(46,143,214,.08),transparent 65%),radial-gradient(ellipse 40% 90% at 6% 50%,rgba(201,124,74,.06),transparent 65%)}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{max-width:18em}
.cta-inner p{color:rgba(0,0,0,.65);font-weight:600;margin-top:10px}

/* ===== 产品中心组件 ===== */
.prod-toolbar{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;margin-bottom:14px}
.tabs{display:flex;gap:8px;background:rgba(18,42,64,.05);border:1px solid var(--line);border-radius:3px;padding:5px;overflow-x:auto}
.tab{border:none;background:transparent;font-family:var(--body);font-size:14.5px;letter-spacing:1px;padding:9px 22px;border-radius:2px;cursor:pointer;color:rgba(18,42,64,.6);transition:all .25s;white-space:nowrap}
.tab .cnt{font-family:var(--mono);font-size:10.5px;color:var(--copper-deep);margin-left:6px;opacity:.8}
.tab:hover{color:var(--ink)}
.tab:active{transform:scale(.96)}
.tab.active{background:var(--sky-deep);color:#fff;box-shadow:0 3px 10px rgba(31,123,192,.35)}
.tab.active .cnt{color:var(--copper-hi)}
.prod-tools{display:flex;gap:10px;flex-wrap:wrap}
.search-box{position:relative}
.search-box input{width:240px;max-width:100%;padding:10px 66px 10px 38px;border:1px solid var(--line);border-radius:3px;background:var(--paper);font-family:var(--body);font-size:14px;transition:border-color .2s,box-shadow .2s}
.search-box input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(30,92,158,.14)}
.search-box .s-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;pointer-events:none;opacity:.45}
.search-clear{position:absolute;right:8px;top:50%;transform:translateY(-50%);border:none;background:rgba(18,42,64,.07);border-radius:2px;font-size:11px;padding:4px 8px;cursor:pointer;color:rgba(18,42,64,.6);display:none;font-family:var(--mono);letter-spacing:1px}
.search-clear:hover{background:var(--copper);color:#fff}
.search-clear.show{display:block}
.tool-btn{border:1px solid var(--line);background:var(--paper);border-radius:3px;padding:9px 16px;font-family:var(--body);font-size:13.5px;color:rgba(18,42,64,.7);cursor:pointer;transition:all .2s;letter-spacing:.5px}
.tool-btn:hover{border-color:var(--copper);color:var(--copper-deep)}
.tool-btn:active{transform:scale(.96)}
.tool-btn.active{background:var(--copper);border-color:var(--copper);color:#fff}
.result-meta{font-family:var(--mono);font-size:11.5px;letter-spacing:1px;color:rgba(18,42,64,.45);margin-bottom:22px;min-height:1em}
.model-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px}
.m-card{background:var(--paper);border:1px solid var(--line);border-radius:3px;padding:20px 20px 16px;position:relative;overflow:hidden;cursor:pointer;transition:transform .3s,box-shadow .3s,border-color .3s;opacity:0;transform:translateY(14px);animation:cardIn .45s ease forwards}
@keyframes cardIn{to{opacity:1;transform:none}}
.m-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--copper-grad);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.m-card:hover,.m-card:focus-visible{transform:translateY(-4px);box-shadow:0 12px 26px rgba(18,42,64,.1);border-color:rgba(201,124,74,.4)}
.m-card:hover::before,.m-card:focus-visible::before{transform:scaleX(1)}
.m-brand{font-family:var(--mono);font-size:10px;letter-spacing:2px;padding:3px 8px;border-radius:2px;display:inline-block;margin-bottom:12px}
.m-brand.kb{background:rgba(30,92,158,.1);color:var(--blue-deep)}
.m-brand.sy{background:rgba(44,82,71,.12);color:var(--board)}
.m-ulchip{font-family:var(--mono);font-size:9px;letter-spacing:1px;padding:3px 7px;border-radius:2px;display:inline-block;margin:0 0 12px 6px;background:rgba(201,124,74,.1);color:var(--copper-deep);border:1px solid rgba(201,124,74,.3)}
.cert-src{font-size:11.5px!important;color:rgba(18,42,64,.42)!important;border-top:1px dashed var(--line);padding-top:8px;margin-top:10px}
.m-model{font-family:var(--mono);font-size:21px;font-weight:700;letter-spacing:1px;margin-bottom:6px;color:var(--ink)}
.m-cat{font-size:12.5px;color:rgba(18,42,64,.5);margin-bottom:14px;font-weight:600}
.m-view{font-size:12.5px;letter-spacing:1.5px;color:var(--copper-deep);border-top:1px dashed var(--line);padding-top:10px;display:flex;align-items:center;gap:6px;transition:gap .25s}
.m-card:hover .m-view{gap:12px}
.no-result{text-align:center;padding:70px 20px;color:rgba(18,42,64,.45);display:none}
.no-result svg{width:44px;height:44px;margin-bottom:14px;opacity:.4}
.no-result p{margin-bottom:16px}
.no-result.show{display:block}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
.skel{height:118px;border-radius:3px;background:linear-gradient(90deg,rgba(18,42,64,.05) 25%,rgba(18,42,64,.1) 50%,rgba(18,42,64,.05) 75%);background-size:200% 100%;animation:shimmer 1.1s linear infinite}
.cat-strip{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-bottom:56px}
.cat-chip{background:var(--paper);border:1px solid var(--line);border-radius:3px;padding:16px 14px;transition:transform .25s,border-color .25s}
.cat-chip:hover{transform:translateY(-3px);border-color:rgba(201,124,74,.45)}
.cat-chip .code{font-family:var(--mono);font-size:10px;letter-spacing:1.5px;color:var(--copper-deep);display:block;margin-bottom:6px}
.cat-chip b{font-size:14px;font-weight:700;display:block;margin-bottom:4px}
.cat-chip span{font-size:11.5px;color:rgba(18,42,64,.5);font-weight:600;line-height:1.5;display:block}

/* ===== 产品详情弹窗 ===== */
.modal-mask{position:fixed;inset:0;background:rgba(8,32,58,.6);backdrop-filter:blur(4px);z-index:80;opacity:0;pointer-events:none;transition:opacity .3s;display:flex;align-items:center;justify-content:center;padding:24px}
.modal-mask.open{opacity:1;pointer-events:auto}
.modal{background:var(--paper);border-radius:5px;max-width:640px;width:100%;max-height:86vh;overflow-y:auto;transform:translateY(24px) scale(.97);transition:transform .35s cubic-bezier(.22,.9,.3,1);box-shadow:0 30px 80px rgba(0,0,0,.4)}
.modal-mask.open .modal{transform:none}
.modal-head{background:linear-gradient(120deg,#1F7BC0,#3E97DA);color:var(--glass);padding:28px 32px;position:sticky;top:0;display:flex;justify-content:space-between;align-items:flex-start;gap:20px;z-index:2}
.modal-head::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--brand-grad)}
.modal-head .mh-brand{font-family:var(--mono);font-size:11px;letter-spacing:2px;color:var(--copper-hi);margin-bottom:6px}
.modal-head h3{font-family:var(--mono);font-size:26px;font-weight:700;letter-spacing:1px}
.modal-head .mh-cat{font-size:13px;color:rgba(238,244,250,.55);font-weight:600;margin-top:4px}
.modal-close{border:1px solid var(--line-dark);background:transparent;color:var(--glass);width:36px;height:36px;border-radius:3px;font-size:16px;cursor:pointer;flex:none;transition:all .2s}
.modal-close:hover{background:var(--copper);border-color:var(--copper);color:var(--ink)}
.modal-body{padding:28px 32px 32px}
.spec-block{margin-bottom:22px}
.spec-block h4{font-family:var(--mono);font-size:11px;letter-spacing:2.5px;color:var(--copper-deep);margin-bottom:8px;display:flex;align-items:center;gap:10px}
.spec-block h4::after{content:"";flex:1;height:1px;background:var(--line)}
.spec-block p{font-size:14px;color:rgba(18,42,64,.68);font-weight:600}
.placeholder-tag{display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:1px;background:rgba(18,42,64,.06);color:rgba(18,42,64,.45);border:1px dashed var(--line);border-radius:2px;padding:2px 8px;margin-left:8px;vertical-align:middle}
.modal-actions{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.btn-dl{border:1px dashed var(--line);color:rgba(18,42,64,.45);padding:13px 26px;border-radius:2px;font-size:14px;letter-spacing:1px;background:none;cursor:not-allowed;font-family:var(--body)}
body.modal-open{overflow:hidden}

/* ===== 关于页 ===== */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
.about-text p{margin-bottom:18px;color:rgba(18,42,64,.78)}
.about-text strong{color:var(--copper-deep);font-weight:700}
.brand-photo{border-radius:4px;overflow:hidden;border:1px solid var(--line);box-shadow:0 20px 50px rgba(18,42,64,.14)}
.brand-photo img{display:block;width:100%}
.brand-photo figcaption{font-family:var(--mono);font-size:10.5px;letter-spacing:2px;color:rgba(18,42,64,.45);padding:10px 14px;background:var(--glass)}
.about-list{border-top:1px solid var(--line)}
.about-item{display:flex;gap:22px;padding:26px 4px;border-bottom:1px solid var(--line)}
.about-item .no{font-family:var(--mono);font-size:12px;color:var(--copper);letter-spacing:1px;padding-top:5px;flex:none}
.about-item h3{font-size:17px;font-weight:700;margin-bottom:6px;letter-spacing:.5px}
.about-item p{font-size:14.5px;color:rgba(18,42,64,.6);font-weight:600}

/* ===== 品牌页 ===== */
.brand-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:44px}
.brand-card{border:1px solid var(--line);border-radius:3px;padding:38px 36px;position:relative;transition:border-color .3s,transform .3s;background:#FFFFFF}
.brand-card:hover{border-color:rgba(201,124,74,.5);transform:translateY(-3px)}
.brand-card .b-en{font-family:var(--mono);font-size:12px;letter-spacing:3px;color:var(--copper-deep);margin-bottom:10px}
.brand-card h3{font-family:var(--disp);font-size:30px;font-weight:700;letter-spacing:3px;margin-bottom:14px}
.brand-card p{font-size:14.5px;color:rgba(0,0,0,.68);font-weight:600;margin-bottom:18px}
.brand-note{font-size:13.5px;color:rgba(0,0,0,.6);font-weight:600;border-left:2px solid var(--copper-deep);padding-left:16px}
.model-chips{display:flex;flex-wrap:wrap;gap:8px}
.model-chips span{font-family:var(--mono);font-size:11px;letter-spacing:1px;border:1px solid var(--line);border-radius:2px;padding:4px 10px;color:rgba(0,0,0,.65);transition:all .2s}
.brand-card:hover .model-chips span{border-color:rgba(201,124,74,.35)}

/* ===== 优势页 ===== */
.edge-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.edge{padding:28px 24px;border:1px solid var(--line);border-radius:3px;background:var(--paper);transition:transform .3s,border-color .3s}
.edge:hover{transform:translateY(-4px);border-color:rgba(30,92,158,.4)}
.edge svg{width:34px;height:34px;margin-bottom:16px}
.edge h3{font-size:16.5px;font-weight:700;margin-bottom:8px}
.edge p{font-size:13.5px;color:rgba(18,42,64,.6);font-weight:600}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:step}
.flow-step{position:relative;padding:26px 22px 26px 26px;border-left:1px solid var(--line)}
.flow-step::before{counter-increment:step;content:"0" counter(step);font-family:var(--mono);font-size:12px;color:var(--copper);letter-spacing:1px;display:block;margin-bottom:10px}
.flow-step::after{content:"";position:absolute;left:-1px;top:0;width:2px;height:0;background:linear-gradient(180deg,var(--blue),var(--copper));transition:height .5s}
.flow-step:hover::after{height:100%}
.flow-step h3{font-size:16px;font-weight:700;margin-bottom:6px}
.flow-step p{font-size:13.5px;color:rgba(18,42,64,.6);font-weight:600}

/* ===== 联系页 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.contact-info{display:flex;flex-direction:column;gap:22px;margin-top:8px}
.c-item{display:flex;gap:16px;align-items:flex-start}
.c-item svg{width:20px;height:20px;flex:none;margin-top:4px}
.c-item .lbl{font-family:var(--mono);font-size:11px;letter-spacing:2px;color:rgba(18,42,64,.45);display:block}
.c-item .val{font-size:16px;color:var(--ink)}
.c-form{background:var(--paper);border:1px solid var(--line);border-radius:4px;padding:36px;box-shadow:0 16px 44px rgba(18,42,64,.07)}
.c-form h3{font-family:var(--disp);font-size:22px;font-weight:700;letter-spacing:2px;margin-bottom:22px}
.f-row{margin-bottom:18px}
.f-row label{display:block;font-size:13px;letter-spacing:1px;color:rgba(18,42,64,.6);margin-bottom:8px}
.f-row input,.f-row textarea{width:100%;background:#fff;border:1px solid var(--line);border-radius:2px;padding:12px 14px;color:var(--ink);font-family:var(--body);font-size:14.5px;transition:border-color .2s,box-shadow .2s}
.f-row input:focus,.f-row textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(30,92,158,.12)}
.f-row textarea{resize:vertical;min-height:110px}
.form-note{font-size:12px;color:rgba(18,42,64,.45);margin-top:14px}

/* ===== 404 ===== */
.nf{min-height:60vh;display:flex;align-items:center;text-align:center}
.nf-code{font-family:var(--mono);font-size:clamp(64px,12vw,120px);font-weight:700;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.nf p{color:rgba(18,42,64,.6);margin:14px 0 30px}

/* ===== 首页精选/品牌摘要 ===== */
.home-two{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.dark-sec{background:#FFFFFF;color:#000}
.light-sec{background:#FFFFFF}
.link-arrow{font-size:13.5px;letter-spacing:1.5px;color:var(--copper-deep);display:inline-flex;align-items:center;gap:8px;transition:gap .25s;margin-top:6px}
.link-arrow:hover{gap:14px;color:var(--copper)}
.on-dark .link-arrow{color:var(--copper-deep)}

/* ===== 减少动态 ===== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  main{animation:none}
  .reveal{opacity:1;transform:none;transition:none}
  .ccl2-row{animation:none}
  .hero-glow{position:absolute;right:-8%;top:-10%;width:55vw;height:55vw;max-width:640px;max-height:640px;background:radial-gradient(circle,rgba(46,143,214,.10),rgba(201,124,74,.05) 45%,transparent 65%);animation:glowDrift 16s ease-in-out infinite;pointer-events:none}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}

/* ===== 响应式 ===== */
@media (max-width:1020px){
  .foot-top{grid-template-columns:1fr 1fr}
  .industry-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:960px){
  .hero-grid,.about-grid,.contact-grid,.brand-grid,.home-two{grid-template-columns:1fr;gap:48px}
  .edge-grid,.flow,.stats .wrap{grid-template-columns:1fr 1fr}
  .stat{border-left:none;border-top:1px solid var(--line)}
  .cat-strip{grid-template-columns:repeat(3,1fr)}
  .prod-toolbar{flex-direction:column;align-items:stretch}
  .prod-tools{justify-content:space-between}
  .search-box{flex:1}
  .search-box input{width:100%}
  .ccl2{max-width:560px}
  .flow-step{border-top:1px solid var(--line)}
}
@media (max-width:680px){
  body{padding-top:62px}
  .nav{height:62px}
  nav ul{display:none;position:absolute;top:100%;left:0;right:0;background:#1A6FB2;flex-direction:column;gap:0;padding:14px 24px 22px;border-bottom:2px solid rgba(255,255,255,.25);align-items:stretch;z-index:70;box-shadow:0 18px 40px rgba(10,50,90,.45);max-height:calc(100vh - 62px);overflow-y:auto}
  nav ul.show{display:flex}
  nav li{padding:4px 0}
  nav a::after{left:0;right:auto;width:34px}
  .menu-btn{display:block}
  .logo img{height:34px}
  .logo-name{font-size:17px}
  section{padding:66px 0}
  .hero{padding:56px 0 66px}
  .page-hero{padding:52px 0 44px}
  .cat-strip,.model-grid{grid-template-columns:repeat(2,1fr)}
  .model-grid{gap:12px}
  .m-card{padding:16px 14px 12px}
  .m-model{font-size:18px}
  .industry-grid{grid-template-columns:repeat(2,1fr)}
  .foot-top{grid-template-columns:1fr}
  .modal-mask{padding:0;align-items:flex-end}
  .modal{max-width:100%;max-height:92vh;border-radius:10px 10px 0 0;transform:translateY(100%)}
  .modal-head,.modal-body{padding-left:22px;padding-right:22px}
  .to-top{right:16px;bottom:16px}
  /* CCL：小屏改为标签置于层条下方，杜绝右侧窄列裁切 */
  .ccl2-stage{transform:none}
  .ccl2-row{grid-template-columns:1fr;gap:6px;margin-bottom:calc(var(--gap) + 8px)}
  .ccl2-lead{display:none}
  .ccl2-label{padding-left:2px}
  .ccl2-label b{display:inline;font-size:12.5px}
  .ccl2-label span{display:inline;margin-left:8px;font-size:10px}
  .ccl2-bar::after{height:5px}
}
@media (max-width:400px){
  .cat-strip,.model-grid{grid-template-columns:1fr}
}

/* ===== 表单提交状态与蜜罐（在线询价 / 问题反馈） ===== */
.hp-field{position:absolute!important;left:-9999px!important;top:auto!important;width:1px;height:1px;overflow:hidden;opacity:0;pointer-events:none}
.form-status{margin-top:14px;font-size:13.5px;line-height:1.6;padding:10px 14px;border-radius:2px;border:1px solid transparent}
.form-status.ok{color:#1B6B3A;background:rgba(35,134,74,.08);border-color:rgba(35,134,74,.25)}
.form-status.err{color:#9E2B25;background:rgba(178,52,44,.07);border-color:rgba(178,52,44,.25)}
.c-form button[disabled]{opacity:.65;cursor:not-allowed}

/* ===== 网站问题反馈：页脚入口与弹窗 ===== */
.fb-link{color:inherit;text-decoration:underline;text-underline-offset:3px;transition:color .2s}
.fb-link:hover{color:var(--blue)}
.fb-overlay{position:fixed;inset:0;z-index:1200;background:rgba(12,29,46,.55);display:flex;align-items:center;justify-content:center;padding:20px}
.fb-overlay[hidden]{display:none}
.fb-dialog{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:4px;box-shadow:0 24px 64px rgba(18,42,64,.25);width:100%;max-width:440px;max-height:90vh;overflow-y:auto;padding:30px 30px 26px}
.fb-dialog h3{font-family:var(--disp);font-size:19px;font-weight:700;letter-spacing:2px;margin-bottom:6px}
.fb-sub{font-size:13px;color:rgba(18,42,64,.55);margin-bottom:18px;line-height:1.6}
.fb-dialog .f-row select{width:100%;background:#fff;border:1px solid var(--line);border-radius:2px;padding:12px 14px;color:var(--ink);font-family:var(--body);font-size:14.5px}
.fb-dialog .f-row select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(30,92,158,.12)}
.fb-dialog .f-row textarea{min-height:90px}
.fb-submit{width:100%}
.fb-close{position:absolute;top:10px;right:12px;background:none;border:none;font-size:24px;line-height:1;color:rgba(18,42,64,.45);cursor:pointer;padding:6px}
.fb-close:hover{color:var(--ink)}
body.fb-lock{overflow:hidden}
@media (max-width:480px){.fb-dialog{padding:24px 20px 20px}}