/* ============================================================
   派普蓝电子 · 明亮科技风主题（v2.7）
   纯白底 + 蓝色光轨 + 深墨文字
   ============================================================ */
:root{
  --ink:#0F1F2D;               /* 主文字 */
  --ink-2:#1B3145;
  --paper:#FFFFFF;             /* 页面底色 */
  --paper-2:#F5F9FD;           /* 浅色分区 */
  --stage:#F7FAFD;             /* 图区浅底 */
  --line:#E4EDF6;
  --line-2:#D3E0EC;
  --line-3:#BFD3E4;
  --steel:#52697C;             /* 次文字 */
  --steel-2:#7C91A3;
  --copper:#0B7FF2;            /* 主强调：科技蓝 */
  --copper-soft:#31A6FF;
  --cyan:#00B8D9;
  --accent-soft:#EAF4FF;
  --signal:#00AF9E;
  --ok:#12976A;
  --glow:0 10px 30px rgba(17,80,150,.10),0 2px 8px rgba(17,80,150,.05);
  --mono:ui-monospace,"SF Mono","SFMono-Regular",Menlo,"Cascadia Mono",Consolas,"Liberation Mono",monospace;
  --max:1280px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;color:var(--ink);background:var(--paper);
  background-image:
    radial-gradient(1000px 520px at 80% -8%,rgba(11,127,242,.07),transparent 62%),
    radial-gradient(760px 420px at 2% 4%,rgba(0,184,217,.05),transparent 60%);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 布局 ---------- */
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
@media(max-width:640px){.wrap{padding:0 16px}}
.section{padding:76px 0}
@media(max-width:900px){.section{padding:52px 0}}
.section.tint{background:linear-gradient(180deg,#FFFFFF,#F6FAFE 55%,#FFFFFF)}
.rule{height:1px;background:linear-gradient(90deg,transparent,var(--line-2),transparent);border:0;margin:0}

/* ---------- 头部 ---------- */
.utility{background:#F4F9FE;color:#5E7488;font-size:12.5px;border-bottom:1px solid #E3EDF7}
.utility .wrap{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px}
.utility-l{display:flex;gap:22px;align-items:center;min-width:0;overflow:hidden;white-space:nowrap}
.utility a{color:#5E7488}
.utility a:hover{color:#0B7FF2}
.utility-r{display:flex;gap:18px;align-items:center;flex:0 0 auto}
i.dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 3px rgba(0,175,158,.14);margin-right:6px;vertical-align:middle}
.lang-btn{background:#fff;border:1px solid #D6E4F1;color:#4F6B81;border-radius:2px;padding:2px 8px;font-size:12px;cursor:pointer}
.lang-btn:hover{border-color:var(--copper);color:var(--copper)}

.site-head{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.9);backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid #E6EFF8;box-shadow:0 1px 0 rgba(11,127,242,.06),0 6px 20px rgba(17,60,110,.05)}
.head-main{display:flex;align-items:center;gap:34px;height:72px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:36px;height:36px;object-fit:contain;filter:drop-shadow(0 3px 8px rgba(11,127,242,.22))}
.brand-text{display:flex;flex-direction:column;line-height:1.18}
.brand-name{font-size:15.5px;font-weight:700;letter-spacing:.04em;color:#0E2436}
.brand-sub{font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;color:#7593AB;text-transform:uppercase;margin-top:2px}
.nav{display:flex;gap:2px;align-items:center;flex:1 1 auto;min-width:0}
.nav a{padding:8px 13px;font-size:14px;color:#4B6376;border-bottom:2px solid transparent;transition:color .18s,border-color .18s}
.nav a:hover{color:#0B7FF2}
.nav a.on{color:#0B7FF2;font-weight:500;border-bottom-color:var(--copper)}
.head-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{width:34px;height:34px;display:grid;place-items:center;background:#fff;border:1px solid #DAE7F3;cursor:pointer;color:#4F6B81;border-radius:2px;transition:border-color .18s,color .18s,box-shadow .18s}
.icon-btn:hover{border-color:var(--copper);color:var(--copper);box-shadow:0 4px 14px rgba(11,127,242,.14)}
.burger{display:none}

/* 搜索条 */
.search-bar{display:none;border-top:1px solid #E6EFF8;background:#fff;box-shadow:0 12px 24px rgba(17,60,110,.06)}
.search-bar.open{display:block}
.search-bar .wrap{display:flex;gap:10px;align-items:center;padding:14px 24px}
.search-bar input{flex:1;border:1px solid #D6E4F1;background:#fff;color:var(--ink);padding:10px 12px;font-size:15px;outline:none}
.search-bar input:focus{border-color:var(--copper);box-shadow:0 0 0 3px rgba(11,127,242,.12)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 20px;border:1px solid transparent;cursor:pointer;font-size:14px;font-weight:500;white-space:nowrap;border-radius:3px;
  transition:background .18s,color .18s,border-color .18s,box-shadow .18s,transform .18s}
.btn-ink{background:#0E2436;color:#fff}
.btn-ink:hover{background:#15354B;box-shadow:0 8px 20px rgba(14,36,54,.18)}
.btn-copper{background:linear-gradient(135deg,#0B7FF2,#2AA4FF);color:#fff;box-shadow:0 8px 22px rgba(11,127,242,.26)}
.btn-copper:hover{background:linear-gradient(135deg,#0A73DE,#1E9BFF);box-shadow:0 10px 28px rgba(11,127,242,.34);transform:translateY(-1px)}
.btn-ghost{border-color:#CBDBEA;color:#26455C;background:#fff}
.btn-ghost:hover{border-color:var(--copper);color:var(--copper);box-shadow:0 6px 18px rgba(11,127,242,.12)}
.btn-ghost-light{border-color:#CBDBEA;color:#26455C;background:#fff}
.btn-ghost-light:hover{border-color:var(--copper);color:var(--copper)}
.btn-sm{height:34px;padding:0 14px;font-size:13px}
.btn-block{width:100%}

/* ---------- 首屏 ---------- */
.hero{position:relative;overflow:hidden;color:var(--ink);background:
  radial-gradient(760px 420px at 84% 6%,rgba(11,127,242,.10),transparent 62%),
  radial-gradient(620px 360px at 6% 92%,rgba(0,184,217,.07),transparent 62%),
  linear-gradient(180deg,#FFFFFF 0%,#F4F9FF 62%,#FFFFFF 100%);
  border-bottom:1px solid #E6EFF8}
.hero-grid{position:absolute;inset:0;background-image:
  linear-gradient(90deg,rgba(11,127,242,.055) 1px,transparent 1px),
  linear-gradient(0deg,rgba(11,127,242,.055) 1px,transparent 1px);
  background-size:64px 64px;pointer-events:none;
  mask-image:radial-gradient(72% 72% at 50% 38%,#000 40%,transparent 100%)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1fr 1.06fr;gap:48px;align-items:center;padding-top:72px;padding-bottom:72px}
@media(max-width:980px){.hero .wrap{grid-template-columns:1fr;gap:36px;padding-top:46px;padding-bottom:44px}}
.hero-kicker{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;color:#0B72D4;margin-bottom:24px}
.hero-kicker::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,transparent,var(--copper))}
.hero h1{font-size:clamp(30px,4.2vw,50px);line-height:1.18;letter-spacing:-.02em;color:#0B1B29;max-width:16em}
.hero-sub{margin-top:22px;font-size:15.5px;line-height:1.75;color:#4F6779;max-width:33em}
.hero-cta{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.hero-stats{display:flex;gap:0;margin-top:44px;border-top:1px solid #E2ECF6;padding-top:20px;flex-wrap:wrap}
.hero-stat{padding-right:34px;margin-right:34px;border-right:1px solid #E2ECF6}
.hero-stat:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-stat b{display:block;font-family:var(--mono);font-size:24px;font-weight:500;color:#0B1B29;line-height:1.2}
.hero-stat span{font-size:12px;color:#6D8598;letter-spacing:.02em}
.hero-visual{position:relative}
.board-stage{background:linear-gradient(160deg,#F8FBFF,#EEF5FD);border:1px solid #DAE8F5;padding:22px;box-shadow:var(--glow)}
.stage-cap{display:flex;justify-content:space-between;gap:12px;margin-top:10px;font-family:var(--mono);font-size:11px;color:#7593AB;letter-spacing:.02em}
.board-stage svg{width:100%;height:auto}
.board-stage.hero-photo{display:flex;align-items:center;justify-content:center;min-height:300px}
.board-stage.hero-photo img{width:100%;height:auto;max-height:420px;object-fit:contain;display:block}

/* ---------- 通用区块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;color:#0B1B29}
.sec-head .lead{margin-top:9px;font-size:14px;color:var(--steel);max-width:52em}
.sec-link{font-size:13.5px;color:#2A6FA8;border-bottom:1px solid #BBD5E8;padding-bottom:2px;white-space:nowrap}
.sec-link:hover{color:var(--copper);border-color:var(--copper)}

/* ---------- 分类卡 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#E6EFF8;border:1px solid #E6EFF8}
@media(max-width:900px){.cat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.cat-grid{grid-template-columns:1fr}}
.cat-card{background:#fff;padding:26px 22px 0;display:flex;flex-direction:column;gap:14px;transition:background .2s,box-shadow .2s}
.cat-card:hover{background:#FBFDFF;box-shadow:inset 0 0 0 1px rgba(11,127,242,.22),0 8px 26px rgba(17,80,150,.08)}
.cat-card .num{font-family:var(--mono);font-size:11px;color:#8AA5BA;letter-spacing:.08em}
.cat-card h3{font-size:17px;color:#0F2436}
.cat-card p{font-size:13px;color:var(--steel);line-height:1.6;min-height:2.6em}
.cat-card .cat-art{height:112px;margin:6px -22px 0;border-top:1px solid #EDF4FA;background:linear-gradient(180deg,#F7FBFF,#EFF6FD);overflow:hidden}
.cat-card .cat-art svg{width:100%;height:100%;opacity:.96}
.cat-card .cat-art .cat-photo{width:100%;height:100%;object-fit:contain;display:block;padding:10px 18px;background:#fff}
.cat-card .count{font-family:var(--mono);font-size:12.5px;color:#0B72D4;padding-bottom:22px}

/* ---------- 产品卡 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#E6EFF8;border:1px solid #E6EFF8}
@media(max-width:1080px){.prod-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:820px){.prod-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:460px){.prod-grid{grid-template-columns:1fr}}
.prod-card{background:#fff;display:flex;flex-direction:column;transition:box-shadow .2s,background .2s;position:relative}
.prod-card:hover{background:#FCFDFF;box-shadow:inset 0 0 0 1px rgba(11,127,242,.2),0 10px 30px rgba(17,80,150,.10)}
.prod-media{background:linear-gradient(180deg,#F8FBFF,#EFF6FD);padding:18px 18px 12px;position:relative;border-bottom:1px solid #EDF4FA}
.prod-media svg{width:100%;height:auto}
.prod-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.pn{font-family:var(--mono);font-size:11.5px;letter-spacing:.04em;color:#6E8CA1}
.prod-title{font-size:15px;font-weight:500;line-height:1.45;color:#12293C}
.prod-chip{font-size:12.5px;color:var(--steel)}
.prod-specs{display:flex;flex-wrap:wrap;gap:5px;margin-top:2px}
.spec-tag{font-family:var(--mono);font-size:10.5px;color:#1D6BB0;background:#EDF5FE;border:1px solid #D6E8F9;padding:2px 6px;white-space:nowrap}
.prod-foot{margin-top:auto;padding-top:12px;display:flex;align-items:flex-end;justify-content:space-between;gap:8px;border-top:1px solid #EDF4FA}
.price{font-family:var(--mono);font-size:17px;letter-spacing:-.02em;color:#0B1B29;line-height:1.2}
.price small{font-size:11px;color:var(--steel);font-weight:400}
.price-note{display:block;font-size:11px;color:var(--steel-2);margin-top:2px}
.stock{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;color:var(--ok);white-space:nowrap}
.stock::before{content:"";width:5px;height:5px;background:var(--ok);display:block;border-radius:50%}
.stock.pre{color:#0B72D4}
.stock.pre::before{background:#0B72D4}

/* ---------- 选型表 ---------- */
.sel-table{width:100%;border-collapse:collapse;font-size:13.5px;table-layout:fixed}
.sel-table th,.sel-table td{padding:12px 10px;text-align:left;border-bottom:1px solid #EDF4FA;vertical-align:middle}
.sel-table thead th{font-size:11.5px;font-weight:500;color:#4C6579;letter-spacing:.02em;border-bottom:1px solid #DEEBF7;white-space:nowrap;background:#F3F8FD}
.sel-table tbody tr{cursor:pointer;transition:background .15s}
.sel-table tbody tr:hover{background:#F7FBFF}
.sel-table .m{font-family:var(--mono);font-size:12px;color:#5E7C91}
.table-scroll{overflow-x:auto;border-top:1px solid #DEEBF7}
.table-scroll .sel-table{min-width:820px}

/* ---------- 方案 ---------- */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:900px){.sol-grid{grid-template-columns:1fr}}
.sol-card{border:1px solid #E4EDF6;background:#fff;padding:0;display:flex;flex-direction:column;transition:border-color .2s,box-shadow .2s,transform .2s}
.sol-card:hover{border-color:#BFD8EE;box-shadow:0 12px 32px rgba(17,80,150,.10);transform:translateY(-2px)}
.sol-art{background:linear-gradient(180deg,#F8FBFF,#EDF5FD);border-bottom:1px solid #E9F1F9;height:158px;display:grid;place-items:center;overflow:hidden}
.sol-art svg{width:100%;height:100%}
.sol-body{padding:20px 22px 24px}
.sol-body h3{font-size:16px;margin-bottom:8px;color:#0F2436}
.sol-body p{font-size:13px;color:var(--steel);line-height:1.65}
.sol-kit{margin-top:14px;padding-top:12px;border-top:1px dashed #DEEBF7;font-family:var(--mono);font-size:11.5px;color:#5E7C91}

/* ---------- 分割带 ---------- */
.band{background:
  radial-gradient(700px 300px at 88% 14%,rgba(11,127,242,.10),transparent 62%),
  linear-gradient(180deg,#F4F9FF,#EAF3FD);
  color:#14293C;border-top:1px solid #DDEAF6;border-bottom:1px solid #DDEAF6}
.band .wrap{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;padding:52px 24px}
@media(max-width:820px){.band .wrap{grid-template-columns:1fr;gap:26px;padding:40px 24px}}
.band h2{font-size:clamp(21px,2.4vw,27px);color:#0B1B29}
.band p{color:#4E6A7F;font-size:14px;margin-top:12px;max-width:40em}
.band-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 24px;font-family:var(--mono);font-size:12px;color:#254A66}
.band-list li{display:flex;gap:8px;align-items:baseline}
.band-list li::before{content:"";width:4px;height:4px;background:var(--copper);flex:0 0 auto;transform:translateY(-2px)}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#E6EFF8;border:1px solid #E6EFF8}
@media(max-width:860px){.news-grid{grid-template-columns:1fr}}
.news-item{background:#fff;padding:22px;display:flex;flex-direction:column;gap:10px;transition:background .2s,box-shadow .2s;cursor:pointer}
.news-item:hover{background:#FBFDFF;box-shadow:inset 0 0 0 1px rgba(11,127,242,.16)}
.news-date{font-family:var(--mono);font-size:11.5px;color:#7B96AB}
.news-item h3{font-size:15px;line-height:1.5;font-weight:500;color:#12293C}
.news-item p{font-size:12.5px;color:var(--steel);line-height:1.6}

/* ---------- 页脚 ---------- */
.foot{background:linear-gradient(180deg,#F7FBFF,#EEF5FD);color:#5B7286;padding:56px 0 26px;font-size:13px;border-top:1px solid #DDEAF6;position:relative}
.foot::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,rgba(11,127,242,.45),rgba(0,184,217,.35),transparent)}
.foot-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:36px;padding-bottom:38px;border-bottom:1px solid #DEEBF7}
@media(max-width:900px){.foot-top{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:520px){.foot-top{grid-template-columns:1fr}}
.foot h4{color:#16324A;font-size:13px;font-weight:500;margin-bottom:14px;letter-spacing:.04em}
.foot a{color:#5B7286;display:block;padding:3px 0;font-size:12.5px}
.foot a:hover{color:var(--copper)}
.foot-brand .brand-name{color:#0E2436;font-size:14px}
.foot-brand .brand-full{display:block;color:#657D91;font-size:12px;margin-top:4px;letter-spacing:.02em}
.foot-brand p{font-size:12.5px;line-height:1.8;color:#5B7286;margin-top:14px;max-width:26em}
.foot-contact{font-family:var(--mono);font-size:12px;color:#2B566F;line-height:1.95;margin-top:14px}
.foot-contact a{display:inline;color:inherit;padding:0}
.foot-contact a:hover{color:var(--copper)}
.foot-block{margin-top:2px}
.foot-block .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:#7C99AE;text-transform:uppercase}
.foot-block .v{font-size:12.5px;color:#2E4E66;line-height:1.7;margin-top:3px}
.foot-block .v a{display:inline;padding:0;color:inherit}
.foot-bot{display:flex;justify-content:space-between;gap:16px;padding-top:20px;font-size:11.5px;color:#7C93A6;flex-wrap:wrap}

/* ---------- 内页通用 ---------- */
.page-head{padding:26px 0 0;background:transparent}
.crumb{font-size:12px;color:#6D8598;display:flex;gap:8px;flex-wrap:wrap;align-items:center;font-family:var(--mono)}
.crumb a:hover{color:var(--copper)}
.crumb span{color:#AFC1CF}
.page-title{padding:18px 0 30px}
.page-title h1{font-size:clamp(24px,3vw,34px);color:#0B1B29}
.page-title p{margin-top:12px;color:var(--steel);font-size:14px;max-width:60em}

/* 产品列表布局 */
.catalog{display:grid;grid-template-columns:236px 1fr;gap:38px;padding:8px 0 72px}
@media(max-width:940px){.catalog{grid-template-columns:1fr;gap:24px}}
.sidebar{align-self:start;position:sticky;top:96px}
@media(max-width:940px){.sidebar{position:static}}
.side-block{border-top:1px solid #DEEBF7;padding:16px 0 22px}
.side-block h4{font-size:12px;font-weight:500;color:#4C6579;margin-bottom:12px;letter-spacing:.02em}
.side-block h4 .clear{float:right;color:#0B7FF2;cursor:pointer;font-size:11px;font-weight:400}
.cat-tree a{display:flex;justify-content:space-between;padding:7px 0;font-size:13.5px;color:#3D5A70;border-bottom:1px solid transparent}
.cat-tree a:hover{color:var(--copper)}
.cat-tree a.on{color:var(--copper);font-weight:500;border-bottom-color:var(--copper)}
.cat-tree .cnt{font-family:var(--mono);font-size:11px;color:#8AA5BA}
.check{display:flex;align-items:center;gap:9px;padding:6px 0;font-size:13px;color:#3D5A70;cursor:pointer;min-height:32px}
.check input{-webkit-appearance:none;appearance:none;width:14px;height:14px;border:1px solid #B9CEE0;background:#fff;border-radius:2px;flex:0 0 auto;position:relative;cursor:pointer;transition:border-color .15s,background .15s}
.check input:hover{border-color:var(--copper)}
.check input:checked{background:var(--copper);border-color:var(--copper)}
.check input:checked::after{content:"";position:absolute;left:4px;top:1px;width:4px;height:8px;border-right:1.6px solid #fff;border-bottom:1.6px solid #fff;transform:rotate(40deg)}
.check input:focus-visible{outline:2px solid rgba(11,127,242,.35);outline-offset:2px}
.check .cnt{margin-left:auto;font-family:var(--mono);font-size:11px;color:#8AA5BA}

.toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid #E9F1F9;margin-bottom:0;flex-wrap:wrap}
.toolbar .res{font-size:13px;color:var(--steel)}
.toolbar .res b{font-family:var(--mono);font-weight:500;color:#0B1B29;font-size:15px}
.toolbar-r{display:flex;gap:10px;align-items:center}
.select{border:1px solid #D6E4F1;background:#fff;color:#26455C;height:36px;padding:0 10px;font-size:13px;cursor:pointer}
.empty{padding:64px 20px;text-align:center;border:1px solid #E6EFF8;border-top:0;background:#fff}
.empty h3{font-size:16px;margin-bottom:8px}
.empty p{font-size:13px;color:var(--steel);margin-bottom:18px}

/* ---------- 产品详情 ---------- */
.detail{padding:10px 0 76px}
.detail-top{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;padding-bottom:44px}
@media(max-width:900px){.detail-top{grid-template-columns:1fr;gap:26px}}
.gallery .main-stage{background:linear-gradient(180deg,#FAFCFF,#F0F6FD);border:1px solid #DEEAF6;padding:24px}
.gallery .main-stage svg{width:100%;height:auto}
.thumbs{display:grid;grid-template-columns:repeat(auto-fit,minmax(0,1fr));gap:8px;background:none;border:0;border-top:0;margin-top:8px}
.thumb{background:#fff;border:1px solid #E2ECF6;padding:6px;cursor:pointer;display:grid;place-items:center;transition:border-color .15s,box-shadow .15s}
.thumb svg{width:100%;height:auto}
.thumb:hover{border-color:#BFD8EE}
.thumb.on{border-color:var(--copper);box-shadow:0 0 0 1px rgba(11,127,242,.25),0 6px 16px rgba(11,127,242,.12)}
.thumb:focus-visible{outline:2px solid rgba(11,127,242,.4);outline-offset:1px}
.gal-cap{display:flex;justify-content:space-between;font-size:11px;color:#7593AB;margin-top:10px;font-family:var(--mono)}

.d-info .pn{font-size:12px}
.d-info h1{font-size:clamp(22px,2.6vw,30px);margin:10px 0 12px;color:#0B1B29}
.d-intro{font-size:14px;color:var(--steel);line-height:1.75}
.d-badges{display:flex;gap:8px;margin:16px 0;flex-wrap:wrap}
.badge{font-size:11.5px;padding:3px 8px;border:1px solid #D6E8F9;color:#1D6BB0;background:#EDF5FE;border-radius:2px}
.badge.ok{color:#0F7F5C;border-color:#C8E8DA;background:#ECFAF3}
.price-box{border-top:1px solid #DEEBF7;border-bottom:1px solid #E9F1F9;padding:18px 0;margin:18px 0 20px}
.price-main{font-family:var(--mono);font-size:30px;letter-spacing:-.03em;line-height:1.1;color:#0B1B29}
.price-main small{font-family:"Noto Sans SC",sans-serif;font-size:13px;color:var(--steel);margin-left:8px;letter-spacing:0}
.price-tiers{display:flex;gap:26px;margin-top:12px;flex-wrap:wrap}
.price-tier{font-size:12px;color:var(--steel)}
.price-tier b{font-family:var(--mono);font-weight:500;color:#16324A;font-size:13.5px}
.d-actions{display:flex;gap:10px;flex-wrap:wrap}
.d-note{font-size:12px;color:var(--steel-2);margin-top:12px;line-height:1.7}

.quick-spec{margin-top:26px;border:1px solid #E6EFF8;border-bottom:0}
.qs-row{display:grid;grid-template-columns:110px 1fr;border-bottom:1px solid #E9F1F9;font-size:13px}
.qs-row dt{padding:9px 12px;color:#4C6579;background:#F6FAFE;border-right:1px solid #E9F1F9}
.qs-row dd{padding:9px 12px;margin:0;font-family:var(--mono);font-size:12.5px;color:#1B3448}

.tabs{display:flex;gap:0;border-bottom:1px solid #DEEBF7;margin-bottom:0;overflow-x:auto}
.tab{background:none;border:0;border-bottom:2px solid transparent;padding:13px 20px 12px;font-size:13.5px;color:#637F94;cursor:pointer;white-space:nowrap;margin-bottom:-1px;transition:color .18s,border-color .18s}
.tab.on{color:var(--copper);font-weight:500;border-bottom-color:var(--copper)}
.tab:hover{color:var(--copper)}
.tab-panel{padding:30px 0 10px;display:none}
.tab-panel.on{display:block}

.spec-table{width:100%;border-collapse:collapse;font-size:13.5px;table-layout:fixed}
.spec-table th,.spec-table td{border:1px solid #E4EDF6;padding:10px 12px;text-align:left;vertical-align:top}
.spec-table th{background:#F5FAFE;font-weight:500;width:150px;color:#3D5A70}
.spec-table td{font-family:var(--mono);font-size:12.5px;line-height:1.7;color:#22384A}
.spec-table .cn{font-family:"Noto Sans SC",sans-serif;font-size:13px}

.doc-list{border-top:1px solid #E9F1F9}
.doc-row{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid #E9F1F9}
.doc-ico{width:36px;height:36px;border:1px solid #DCE9F5;display:grid;place-items:center;font-family:var(--mono);font-size:10px;color:#4C7FA3;flex:0 0 auto;text-transform:uppercase;background:#F6FAFE}
.doc-meta{flex:1;min-width:0}
.doc-meta b{display:block;font-size:13.5px;font-weight:500;color:#12293C}
.doc-meta span{font-size:11.5px;color:#7B96AB;font-family:var(--mono)}
.doc-row .btn{flex:0 0 auto}

.rel-title{display:flex;justify-content:space-between;align-items:baseline;margin:52px 0 20px}

/* ---------- 方案页 ---------- */
.case{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid #E4EDF6;margin-bottom:24px;background:#fff}
@media(max-width:860px){.case{grid-template-columns:1fr}}
.case-art{background:linear-gradient(180deg,#F8FBFF,#ECF4FD);border-right:1px solid #E9F1F9;display:grid;place-items:center;padding:30px;min-height:260px}
@media(max-width:860px){.case-art{border-right:0;border-bottom:1px solid #E9F1F9;min-height:200px}}
.case-line{width:100%;display:grid;place-items:center;padding:8px}
.case-line svg{width:100%;max-width:340px;height:auto}
.case-body{padding:34px 32px}
.case-body h3{font-size:19px;margin-bottom:12px;color:#0F2436}
.case-body p{font-size:13.5px;color:var(--steel);line-height:1.75}
.case-extra{margin-top:12px;font-size:13px;color:#3F5A6E;line-height:1.8}
.case-kv{display:grid;grid-template-columns:1fr 1fr;gap:14px 24px;margin:22px 0 0;padding-top:18px;border-top:1px dashed #DEEBF7}
.case-kv dt{font-size:11.5px;color:#7B96AB;font-family:var(--mono);margin-bottom:2px}
.case-kv dd{margin:0;font-size:13px}
.case-kv dd.m{font-family:var(--mono);font-size:12.5px}

/* ---------- 支持页 ---------- */
.support-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#E6EFF8;border:1px solid #E6EFF8}
@media(max-width:900px){.support-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.support-grid{grid-template-columns:1fr}}
.doc-cat{background:#fff;padding:24px 20px}
.doc-cat h3{font-size:15px;margin-bottom:10px;color:#12293C}
.doc-cat p{font-size:12.5px;color:var(--steel);line-height:1.6;min-height:3.2em}
.doc-cat .n{font-family:var(--mono);font-size:11px;color:#8AA5BA;margin-top:14px}
.faq{border-top:1px solid #DEEBF7;margin-top:44px}
.faq-item{border-bottom:1px solid #E9F1F9}
.faq-q{width:100%;background:none;border:0;text-align:left;padding:18px 0;font-size:14.5px;font-weight:500;cursor:pointer;display:flex;justify-content:space-between;gap:16px;align-items:center;color:#12293C}
.faq-q:hover{color:var(--copper)}
.faq-q .ico{font-family:var(--mono);color:#7E9AB0;font-size:16px;flex:0 0 auto}
.faq-a{display:none;padding:0 0 20px;font-size:13.5px;color:var(--steel);line-height:1.8;max-width:70em}
.faq-a.open,.faq-item.on .faq-a{display:block}

/* ---------- 关于 ---------- */
.about-lead{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:start}
@media(max-width:900px){.about-lead{grid-template-columns:1fr;gap:26px}}
.about-lead p{font-size:14.5px;line-height:1.9;color:#31495C}
.about-lead p+p{margin-top:16px}
.about-side{border-left:2px solid var(--copper);padding-left:22px}
.about-side dl{display:grid;grid-template-columns:88px 1fr;gap:10px 12px;font-size:13px;margin:0}
.about-side dt{color:#7B96AB;font-family:var(--mono);font-size:11.5px}
.about-side dd{margin:0}
.timeline{display:grid;grid-template-columns:86px 1px 1fr;column-gap:22px;margin-top:16px}
.tl-year{font-family:var(--mono);font-size:13px;color:#0B72D4;padding-top:2px;text-align:right;align-self:start}
.tl-axis{position:relative;background:#DCE9F5;width:1px}
.tl-dot{position:absolute;left:50%;top:4px;width:7px;height:7px;background:var(--copper);border-radius:50%;transform:translate(-50%,0);box-shadow:0 0 0 3px rgba(11,127,242,.15)}
.tl-body{padding-bottom:30px}
.tl-body h3{font-size:15px;margin-bottom:5px;color:#12293C}
.tl-body p{font-size:13px;color:var(--steel);line-height:1.7}
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:34px}
@media(max-width:900px){.cap-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.cap-grid{grid-template-columns:1fr}}
.cap{border-top:2px solid #DCE9F5;padding-top:16px}
.cap b{display:block;font-size:14px;margin-bottom:6px;color:#12293C}
.cap p{font-size:12.5px;color:var(--steel);line-height:1.6}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:52px;padding:10px 0 72px}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr;gap:34px}}
.c-item{padding:18px 0;border-bottom:1px solid #E9F1F9}
.c-item dt{font-size:11.5px;color:#7B96AB;font-family:var(--mono);margin-bottom:5px}
.c-item dd{margin:0;font-size:14px;line-height:1.7;color:#16324A}
.form-card{border:1px solid #E2EDF8;background:#fff;padding:30px;box-shadow:var(--glow)}
.field{margin-bottom:16px}
.field label{display:block;font-size:12.5px;color:#4C6579;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;border:1px solid #D6E4F1;background:#fff;color:var(--ink);padding:10px 12px;font-size:15px;outline:none;border-radius:2px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--copper);box-shadow:0 0 0 3px rgba(11,127,242,.12)}
.field textarea{min-height:104px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:520px){.field-row{grid-template-columns:1fr}}
.form-note{font-size:11.5px;color:#7B96AB;line-height:1.7;margin-top:12px}
.form-err{font-size:12px;color:#C43B2E;margin-top:8px;display:none}
.form-ok{border:1px solid #C8E8DA;background:#F1FBF6;padding:24px;text-align:left}
.form-ok h3{font-size:16px;margin-bottom:8px;color:#0F6E51}
.form-ok p{font-size:13px;color:var(--steel)}

/* ---------- 弹层 ---------- */
.modal{position:fixed;inset:0;z-index:90;display:none}
.modal.open{display:block}
.modal-mask{position:absolute;inset:0;background:rgba(12,30,46,.45);backdrop-filter:blur(3px)}
.modal-panel{position:relative;margin:6vh auto 0;width:min(560px,calc(100% - 28px));background:#fff;border:1px solid #E2EDF8;max-height:88vh;overflow:auto;box-shadow:0 30px 70px rgba(12,40,70,.22)}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:22px 24px;border-bottom:1px solid #E9F1F9}
.modal-head h3{font-size:17px;color:#0B1B29}
.modal-head .sub{font-size:12px;color:#7B96AB;margin-top:4px;font-family:var(--mono)}
.modal-x{border:0;background:none;font-size:20px;line-height:1;cursor:pointer;color:#7E9AB0;padding:4px 6px}
.modal-x:hover{color:var(--copper)}
.modal-body{padding:22px 24px 26px}

/* toast */
.toast{position:fixed;left:50%;bottom:32px;transform:translate(-50%,20px);background:#0E2436;border:1px solid #163B54;color:#F2FAFF;padding:11px 18px;font-size:13px;z-index:120;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;max-width:calc(100% - 32px);box-shadow:0 12px 34px rgba(12,40,70,.28)}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* 移动导航 */
.mnav{position:fixed;inset:0;z-index:80;display:none}
.mnav.open{display:block}
.mnav-mask{position:absolute;inset:0;background:rgba(12,30,46,.4)}
.mnav-panel{position:absolute;left:0;top:0;bottom:0;width:min(300px,84%);background:#fff;padding:20px;overflow:auto;border-right:1px solid #E2EDF8;box-shadow:12px 0 40px rgba(12,40,70,.12)}
.mnav-panel a{display:block;padding:14px 0;border-bottom:1px solid #EEF5FB;font-size:14.5px;color:#16324A}
.mnav-panel a.on{color:var(--copper)}
.mnav-close{background:#fff;border:1px solid #DAE7F3;color:#26455C;width:34px;height:34px;cursor:pointer;margin-bottom:16px}

@media(max-width:900px){
  .nav{display:none}
  .burger{display:grid}
  .head-main{gap:10px;height:62px;justify-content:space-between}
  .utility-l{display:none}
  .utility .wrap{justify-content:flex-end;gap:10px}
  .utility-r{gap:12px;font-size:12px}
  .utility-r .u-mail{display:none}
  .head-tools{gap:8px}
}
@media(max-width:600px){
  .utility-r .u-support{display:none}
  .utility .wrap{padding:0 12px}
  .brand-sub{display:none}
  .head-tools .btn-sm{padding:0 10px;font-size:12px}
  .head-main .brand-mark{width:30px;height:30px}
  .brand-name{font-size:14.5px}
}
@media(max-width:520px){
  .hero-stat{padding-right:20px;margin-right:20px}
  .hero-stats{gap:8px}
}
:focus-visible{outline:2px solid rgba(11,127,242,.55);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ---- 版式补充 ---- */
.catalog > form { display: contents; }
.utility-r a.lang-btn { display: inline-block; text-decoration: none; }
.search-bar form { display: flex; gap: 10px; }
.detail { padding-left: 24px; padding-right: 24px; }
@media (max-width: 640px) {
  .detail { padding-left: 16px; padding-right: 16px; }
}

/* ============ 同系列切换 / 图库 ============ */
.series-row{display:flex;align-items:center;gap:10px;margin-bottom:14px;padding-bottom:14px;border-bottom:1px dashed #DEEBF7;flex-wrap:wrap}
.series-row label{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:#7B96AB;text-transform:uppercase;margin:0}
.series-row select{flex:1 1 220px;min-width:0;padding:8px 10px;border:1px solid #D6E4F1;background:#fff;color:#26455C;font-size:13px}
.series-hint{font-size:11px;color:#7B96AB;font-family:var(--mono)}
.gallery .main-stage.has-img{padding:0;background:linear-gradient(180deg,#FAFCFF,#F0F6FD);position:relative;aspect-ratio:4/3;overflow:hidden;border:1px solid #DEEAF6}
.gallery .main-stage.has-img img{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:contain;cursor:zoom-in}
.thumbs{background:none;border:0;grid-template-columns:repeat(auto-fill,96px);grid-auto-rows:76px;justify-content:start;gap:8px;margin-top:8px}
.thumbs .thumb{height:76px;padding:5px;overflow:hidden;border:1px solid #E2ECF6;background:#fff}
.thumbs .thumb img{display:block;width:100%;height:66px;object-fit:contain;background:#F7FAFD}
@media(max-width:900px){
  .thumbs{grid-auto-rows:64px;grid-template-columns:repeat(auto-fill,80px)}
  .thumbs .thumb{height:64px}
}
/* 大图预览 */
.lightbox{position:fixed;inset:0;z-index:99;background:rgba(8,20,32,.92);display:none;place-items:center;padding:4vh 4vw;cursor:zoom-out}
.lightbox.on{display:grid}
.lightbox img{max-width:92vw;max-height:86vh;width:auto;height:auto;object-fit:contain;background:#fff;box-shadow:0 18px 60px rgba(0,0,0,.45)}
.lightbox .lb-close{position:absolute;top:18px;right:22px;background:none;border:0;color:#fff;font:400 26px/1 var(--mono);cursor:pointer;padding:8px}
.lightbox .lb-cap{position:absolute;left:0;right:0;bottom:14px;text-align:center;color:#CFE4F2;font-size:12px;font-family:var(--mono)}
.lightbox .lb-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#fff;
  width:46px;height:64px;font:400 26px/1 var(--mono);cursor:pointer;display:grid;place-items:center;transition:background .18s}
.lightbox .lb-prev{left:2vw}.lightbox .lb-next{right:2vw}
.lightbox .lb-nav:hover{background:rgba(255,255,255,.28)}
.lightbox img{cursor:default}
.io-list{border-top:1px solid #E9F1F9}
.io-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid #E9F1F9;font-size:13.5px;color:#22384A}
.io-tag{font-family:var(--mono);font-size:11px;color:#7B96AB;flex:0 0 auto}
.demo-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px 24px;font-size:13px;color:var(--steel)}
.demo-list li{padding:6px 0;border-bottom:1px dashed #DEEBF7}
.order-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.rel-block{margin-top:52px}
.rel-block .sec-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:20px}
.rel-block .sec-head h2{font-size:20px}

/* 图片占位 */
.prod-media.has-img{padding:0;overflow:hidden;background:#FBFDFF;aspect-ratio:4/3}
.prod-media.has-img img{display:block;width:100%;height:100%;object-fit:contain;background:#fff;padding:10px}

/* ============ 产品详情富文本 ============ */
.rich-body{font-size:14.5px;line-height:1.9;color:#243B4C}
.rich-body h2{font-size:23px;margin:30px 0 14px;font-weight:600;letter-spacing:-.01em;color:#0B1B29;padding-left:14px;border-left:3px solid var(--copper)}
.rich-body h2:first-child{margin-top:4px}
.rich-body h3{font-size:17px;margin:24px 0 10px;font-weight:600;color:#12293C}
.rich-body h4{font-size:15px;margin:18px 0 8px;font-weight:600;color:#1B3448}
.rich-body p{margin:0 0 14px}
.rich-body img{max-width:760px;width:100%;height:auto;display:block;margin:22px 0;border:1px solid #E4EDF6;background:#F9FCFF;border-radius:2px}
.rich-body ul,.rich-body ol{margin:0 0 16px;padding-left:22px}
.rich-body ul{list-style:none}
.rich-body ul li{position:relative;padding-left:14px}
.rich-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:5px;height:5px;background:var(--copper);border-radius:1px}
.rich-body ol{list-style:decimal}
.rich-body li{margin:5px 0}
.rich-body table{border-collapse:collapse;width:100%;margin:18px 0;font-size:13px}
.rich-body td,.rich-body th{border:1px solid #E4EDF6;padding:9px 11px;vertical-align:top;text-align:left}
.rich-body th{background:#F5FAFE;color:#3D5A70}
.rich-body blockquote{border-left:3px solid var(--copper-soft);background:#F4F9FF;margin:18px 0;padding:10px 0 10px 16px;color:#3D5A70}
.rich-body a{color:#0B7FF2;text-decoration:underline;text-underline-offset:3px}
.rich-body hr{border:0;border-top:1px solid #E4EDF6;margin:24px 0}

/* 首页重点型号幻灯片 */
.feature-slider{position:relative;border:1px solid #E2EDF8;background:#fff;overflow:hidden}
.fs-track{position:relative;height:400px}
.fs-slide{position:absolute;inset:0;display:grid;grid-template-columns:1fr 1.05fr;align-items:stretch;opacity:0;visibility:hidden;transition:opacity .45s ease;text-decoration:none;color:inherit}
.fs-slide.on{opacity:1;visibility:visible}
.fs-info{padding:42px 46px;display:flex;flex-direction:column;justify-content:center;gap:10px}
.fs-tag{font:500 11px/1 var(--mono);letter-spacing:.14em;color:#5C86A6;text-transform:uppercase}
.fs-pn{font-family:var(--mono);font-size:13px;color:var(--copper);letter-spacing:.06em}
.fs-info h3{font-size:26px;line-height:1.35;margin:2px 0 0;color:var(--ink)}
.fs-info p{margin:0;font-size:13.5px;line-height:1.8;color:#4B6579;max-width:420px}
.fs-more{margin-top:12px;font-size:12.5px;color:var(--copper);font-weight:600}
.fs-media{background:#fff;display:grid;place-items:center;padding:26px;border-left:1px solid #EDF5FD}
.fs-media img{max-width:100%;max-height:100%;object-fit:contain}
.fs-media svg{width:100%;height:auto}
.fs-nav{position:absolute;top:16px;right:16px;width:34px;height:34px;border:1px solid #DCE9F6;background:rgba(255,255,255,.92);color:#26506E;font:400 18px/1 var(--mono);cursor:pointer;display:grid;place-items:center;transition:background .18s,border-color .18s;z-index:2}
.fs-nav:hover{background:#fff;border-color:var(--copper);color:var(--copper)}
.fs-prev{right:58px}
.fs-next{right:16px}
.fs-dots{position:absolute;left:46px;bottom:20px;display:flex;gap:8px}
.fs-dots button{width:22px;height:3px;border:0;background:#CBDCEC;cursor:pointer;padding:0;transition:background .2s,width .2s}
.fs-dots button.on{background:var(--copper);width:34px}
@media(max-width:900px){
  .fs-track{height:520px}
  .fs-slide{grid-template-columns:1fr;grid-template-rows:1.1fr 1fr}
  .fs-info{padding:26px 22px}
  .fs-info h3{font-size:20px}
  .fs-media{border-left:0;border-top:1px solid #EDF5FD;padding:16px}
  .fs-dots{left:22px;bottom:12px}
  .fs-nav{display:none}
}

/* ===== 首页区块排序 ===== */
main.home{display:flex;flex-direction:column}
main.home > section{min-width:0}
.cat-grid,.prod-grid,.sol-grid,.news-grid{min-width:0}

/* ===== 资料中心 ===== */
.doc-search{display:flex;align-items:center;gap:10px;margin-top:22px;max-width:660px;background:#fff;border:1px solid #DCE9F6;border-radius:12px;padding:6px 6px 6px 14px;box-shadow:0 10px 28px rgba(18,63,105,.06)}
.doc-search .ds-ico{color:#8AA6BE;font-size:16px;line-height:1}
.doc-search input[type=search]{flex:1;border:0;outline:0;background:transparent;font-size:14px;color:var(--ink);min-width:0;height:34px}
.doc-search input::placeholder{color:#9DB3C7}
.support-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.doc-cat{position:relative;display:block;background:#fff;border:1px solid #E2EDF8;border-radius:12px;padding:22px 20px 18px;text-decoration:none;overflow:hidden;transition:border-color .25s, transform .25s, box-shadow .25s}
.doc-cat:hover,.doc-cat.on{border-color:#9CCBFF;transform:translateY(-3px);box-shadow:0 16px 36px rgba(18,63,105,.08)}
.doc-cat h3{font-size:15px;margin:0 0 8px;color:var(--ink)}
.doc-cat p{font-size:12.5px;line-height:1.7;color:#6B849A;margin:0 0 18px;min-height:44px}
.doc-cat .n{font-family:var(--mono);font-size:26px;color:#0B7FF2;line-height:1}
.doc-cat .n small{font-size:11px;color:#8AA6BE;letter-spacing:.06em}
.doc-cat-line{position:absolute;left:0;right:0;bottom:0;height:2px;background:linear-gradient(90deg,#0B7FF2,transparent);opacity:0;transition:opacity .25s}
.doc-cat:hover .doc-cat-line,.doc-cat.on .doc-cat-line{opacity:1}
.doc-block{margin-bottom:26px}
.doc-block-head{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.doc-chip{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:#0B7FF2;background:#EAF5FF;border:1px solid #CCE5FF;border-radius:4px;padding:4px 9px}
.doc-list{background:#fff;border:1px solid #E2EDF8;border-radius:12px;overflow:hidden}
.doc-row{display:flex;align-items:center;gap:16px;padding:14px 18px;border-bottom:1px solid #EEF5FB}
.doc-row:last-child{border-bottom:0}
.doc-row:hover{background:#FAFDFF}
.doc-main{flex:1;min-width:0}
.doc-title{font-size:14px;color:var(--ink);font-weight:600;margin-bottom:4px}
.doc-meta{display:flex;gap:10px;flex-wrap:wrap;font-size:12px;color:#7793A9}
.doc-pn{font-family:var(--mono);color:#0E6FB8}
.doc-kw{color:#9DB3C7}
.doc-size{font-size:11.5px;color:#7C97AD;white-space:nowrap}
.doc-act{flex:0 0 auto}
.doc-empty{background:#fff;border:1px dashed #CFE2F2;border-radius:12px;padding:44px;text-align:center;color:#6B849A}
.doc-empty h3{margin:0 0 8px;font-size:15px;color:var(--ink)}

/* ===== 点缀元素（浅色科技感） ===== */
body{background-image:radial-gradient(900px 420px at 78% -10%, rgba(11,127,242,.06), transparent 60%),radial-gradient(700px 360px at 8% 12%, rgba(11,127,242,.04), transparent 65%)}
.page-head{position:relative;overflow:hidden}
.page-head::after{content:"";position:absolute;right:-40px;top:-40px;width:320px;height:320px;background-image:linear-gradient(rgba(11,127,242,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(11,127,242,.10) 1px,transparent 1px);background-size:22px 22px;mask-image:radial-gradient(circle at 70% 30%,#000 0%,transparent 72%);-webkit-mask-image:radial-gradient(circle at 70% 30%,#000 0%,transparent 72%);pointer-events:none}
.sec-head h2{position:relative;display:inline-block}
.sec-head h2::after{content:"";position:absolute;left:0;bottom:-8px;width:38px;height:2px;background:linear-gradient(90deg,#0B7FF2,rgba(11,127,242,0));border-radius:2px}
.cat-card,.case,.news-item,.faq-item,.sol-card,.prod-card{position:relative}
.cat-card::before,.case::before,.news-item::before,.sol-card::before,.prod-card::before{content:"";position:absolute;top:10px;right:10px;width:9px;height:9px;border-top:1px solid rgba(11,127,242,.35);border-right:1px solid rgba(11,127,242,.35);opacity:0;transition:opacity .25s}
.cat-card:hover::before,.case:hover::before,.news-item:hover::before,.sol-card:hover::before,.prod-card:hover::before{opacity:1}
.faq-item{border-left:2px solid transparent;transition:border-color .25s,background .25s}
.faq-item:hover{border-left-color:#0B7FF2;background:#FCFEFF}
.news-date{position:relative}
.news-date::before{content:"";display:inline-block;width:6px;height:6px;background:#0B7FF2;border-radius:50%;margin-right:8px;vertical-align:1px;opacity:.55}
.band{position:relative;overflow:hidden}
.band::after{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 82% 30%, rgba(120,190,255,.16), transparent 55%);pointer-events:none}
@media (max-width:900px){
  .support-grid{grid-template-columns:repeat(2,1fr)}
  .doc-row{flex-wrap:wrap;gap:10px}
  .doc-size{order:3}
  .doc-act{order:4;width:100%}
  .doc-act .btn{width:100%}
}

/* ===== 资料分页 ===== */
.doc-pager{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-top:26px}
.doc-pager .pg{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:34px;padding:0 12px;border:1px solid #DCE9F6;border-radius:8px;background:#fff;color:#16394F;font-size:12.5px;text-decoration:none;font-family:var(--mono)}
.doc-pager .pg:hover{border-color:#9CCBFF;color:#0B7FF2}
.doc-pager .pg.on{background:#0B7FF2;border-color:#0B7FF2;color:#fff}
.doc-pager .pg.off{color:#B6C7D6;background:#F8FBFE}
.doc-pager .pg-info{margin-left:auto;font-size:12px;color:#7C97AD}
.doc-lock{display:inline-block;margin-left:8px;font-size:10.5px;letter-spacing:.04em;color:#0B7FF2;background:#EAF5FF;border:1px solid #CCE5FF;border-radius:3px;padding:1px 5px;vertical-align:1px}

/* ===== 邮箱验证弹层 ===== */
.gdmask[hidden]{display:none}
.gdmask{position:fixed;inset:0;z-index:80;background:rgba(12,32,48,.42);display:flex;align-items:center;justify-content:center;padding:20px}
.gdbox{position:relative;width:min(560px,100%);background:#fff;border-radius:14px;box-shadow:0 30px 70px rgba(10,34,54,.24);padding:30px 32px 26px;max-height:92vh;overflow:auto}
.gdclose{position:absolute;top:12px;right:14px;border:0;background:transparent;font-size:22px;line-height:1;color:#9DB3C7;cursor:pointer}
.gd-eyebrow{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#0B7FF2;margin-bottom:10px}
.gdbox h3{margin:0 0 8px;font-size:19px;color:#0E2436}
.gd-doc{font-size:12.5px;color:#6B849A;margin:0 0 18px;line-height:1.7}
.gd-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.gd-grid label{display:block;font-size:11.5px;color:#7C97AD;margin:0 0 6px}
.gd-grid input{width:100%;box-sizing:border-box;height:38px;border:1px solid #D6E4F1;border-radius:8px;padding:0 11px;font-size:13.5px;outline:none}
.gd-grid input:focus{border-color:#0B7FF2;box-shadow:0 0 0 3px rgba(11,127,242,.10)}
.gd-tip{font-size:11.5px;color:#9DB3C7;margin:12px 0 0}
.gd-foot{display:flex;align-items:center;gap:10px;margin-top:20px;flex-wrap:wrap}
.gd-msg{font-size:12px;color:#C9634B;line-height:1.5}
.gd-code input{width:100%;box-sizing:border-box;height:56px;text-align:center;font-family:var(--mono);font-size:26px;letter-spacing:10px;border:1px solid #D6E4F1;border-radius:10px;outline:none;color:#0E2436}
.gd-code input:focus{border-color:#0B7FF2;box-shadow:0 0 0 3px rgba(11,127,242,.10)}
.gd-done{margin-top:16px;padding:14px 16px;background:#F3FAFF;border:1px solid #CCE5FF;border-radius:10px;font-size:13px;color:#16394F}
.gd-done p{margin:0 0 10px}
@media (max-width:640px){.gd-grid{grid-template-columns:1fr}.gdbox{padding:24px 20px 20px}}

/* ============================================================
   v3.5 科技蓝增强（白底不变，蓝色存在感加强）
   ============================================================ */
:root{
  --copper:#0A62D0;
  --copper-soft:#2C97FF;
  --blue-ink:#0A3E7A;
  --line:#D7E6F7;
  --accent-soft:#EAF3FF;
}
body{background-image:
  radial-gradient(1180px 600px at 84% -12%,rgba(10,98,208,.14),transparent 62%),
  radial-gradient(860px 500px at -4% 2%,rgba(0,184,217,.11),transparent 60%),
  linear-gradient(180deg,#F7FBFF 0,#FFFFFF 420px)}

/* 顶部信息条：品牌蓝实条 */
.utility{background:linear-gradient(90deg,#07479E,#0A62D0 46%,#0C86DF 74%,#00A8CE);color:#EAF4FF;border-bottom:0}
.utility a,.utility a:hover{color:#EAF4FF}
.utility i.dot{background:#7CFFE8;box-shadow:0 0 0 3px rgba(124,255,232,.18)}
.lang-btn{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.42);color:#fff}
.lang-btn:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.26)}

/* 主导航：更大字号 + 蓝色胶囊选中态 */
.site-head{position:relative;border-bottom:1px solid #CFE2F6;box-shadow:0 6px 24px rgba(10,98,208,.08)}
.site-head::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:linear-gradient(90deg,rgba(10,98,208,0),#0A62D0 18%,#2C97FF 55%,#00B8D9 82%,rgba(0,184,217,0))}
.brand-mark{width:38px;height:38px;filter:drop-shadow(0 4px 10px rgba(10,98,208,.30))}
.nav{gap:4px}
.nav a{padding:9px 15px;font-size:15.5px;font-weight:500;color:#27455E;border-bottom:0;border-radius:5px;letter-spacing:.01em;
  transition:color .18s,background .18s,box-shadow .18s}
.nav a:hover{color:#0A62D0;background:#F0F7FF}
.nav a.on{color:#fff;font-weight:600;background:linear-gradient(135deg,#0A62D0,#1E8CFF);
  box-shadow:0 8px 18px rgba(10,98,208,.30)}
.icon-btn{border-color:#C9DDF2;color:#15507F}
.icon-btn:hover{border-color:#0A62D0;color:#0A62D0;box-shadow:0 6px 16px rgba(10,98,208,.18)}

/* 按钮：更饱和的蓝 */
.btn-copper{background:linear-gradient(135deg,#084FBF,#1E8CFF);box-shadow:0 10px 24px rgba(10,98,208,.30)}
.btn-copper:hover{background:linear-gradient(135deg,#073FA0,#147DF5);box-shadow:0 14px 30px rgba(10,98,208,.38)}
.btn-ghost,.btn-ghost-light{border-color:#BED7F1;color:#10456F;background:#fff}
.btn-ghost:hover,.btn-ghost-light:hover{border-color:#0A62D0;color:#0A62D0;background:#F4FAFF}
.btn-ink{background:linear-gradient(135deg,#0A3E7A,#124E92)}
.btn-ink:hover{background:linear-gradient(135deg,#083260,#0F4482)}

/* 首屏：更强的蓝色场 */
.hero{background:
  radial-gradient(860px 480px at 88% 2%,rgba(10,98,208,.20),transparent 60%),
  radial-gradient(660px 420px at 2% 98%,rgba(0,194,224,.14),transparent 62%),
  linear-gradient(180deg,#FFFFFF 0%,#EEF7FF 56%,#FFFFFF 100%);
  border-bottom:1px solid #CFE2F6}
.hero-grid{background-image:
  linear-gradient(90deg,rgba(10,98,208,.10) 1px,transparent 1px),
  linear-gradient(0deg,rgba(10,98,208,.10) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(70% 74% at 52% 40%,#000 40%,transparent 100%)}
.hero-kicker{background:linear-gradient(135deg,#E8F2FF,#D8EBFF);border:1px solid #BAD8F7;color:#0A4FA8;
  padding:7px 13px;border-radius:999px;font-weight:500;box-shadow:0 4px 14px rgba(10,98,208,.10)}
.hero-kicker::before{width:18px;background:linear-gradient(90deg,#0A62D0,#00B8D9)}
.hero h1 .hl{background:linear-gradient(96deg,#0A52C0,#1E8CFF 46%,#00AED6);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:#3C5871}
.hero-stats{background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(236,246,255,.96));
  border:1px solid #CFE2F6;border-radius:12px;padding:16px 22px;box-shadow:0 12px 30px rgba(10,98,208,.10)}
.hero-stat{border-right-color:#D7E6F7}
.hero-stat b{color:#0A62D0}
.hero-stat span{color:#5D7A93}
.board-stage{background:linear-gradient(160deg,#F3F9FF,#E4F0FF);border:1px solid #BFD9F4;
  box-shadow:0 24px 50px rgba(10,98,208,.16),0 2px 0 rgba(255,255,255,.9) inset}

/* 区块标题与浅色分区 */
.sec-head h2{color:#08243D;font-size:clamp(23px,2.7vw,31px)}
.sec-head h2::after{width:56px;height:3px;background:linear-gradient(90deg,#0A62D0,#2C97FF 60%,rgba(0,184,217,0))}
.sec-head .lead{color:#4A6579}
.sec-link{color:#0A62D0;border-bottom-color:#9AC5EE}
.section.tint{background:linear-gradient(180deg,#FFFFFF,#ECF5FF 46%,#F7FBFF 100%)}

/* 页头（内页） */
.page-head{background:linear-gradient(180deg,#EFF7FF 0%,#FFFFFF 92%);border-bottom:1px solid #DCEBF9}
.page-title h1{color:#08243D}
.page-title h1 .bar,.page-title h1::before{content:""}
.page-title h1{position:relative;padding-left:16px}
.page-title h1::before{position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,#0A62D0,#2C97FF,#00B8D9)}
.page-title p{color:#4A6579}

/* 卡片网格：蓝色分隔线与更强的图区底色 */
.cat-grid,.prod-grid,.news-grid{background:#D5E6F9;border-color:#D5E6F9}
.prod-media,.cat-card .cat-art,.sol-art,.news-item{background-image:linear-gradient(180deg,#F1F8FF,#E1EFFF)}
.cat-card:hover,.prod-card:hover,.news-item:hover{background:#F7FBFF;
  box-shadow:inset 0 0 0 1px rgba(10,98,208,.30),0 16px 36px rgba(10,98,208,.14)}
.cat-card{transition:background .2s,box-shadow .2s,transform .2s}
.cat-card:hover{transform:translateY(-2px)}
.cat-card .num{color:#fff;background:linear-gradient(135deg,#0A62D0,#1E8CFF);padding:2px 7px;border-radius:3px;align-self:flex-start}
.cat-card h3{font-size:18px;color:#08243D}
.cat-card .count{color:#0A62D0;font-weight:600}
.cat-card .cat-art .cat-photo{padding:8px 14px;background:linear-gradient(180deg,#FFFFFF,#F4FAFF)}
.spec-tag{color:#0A55B4;background:#E7F2FF;border-color:#C9E0F8}
.price{color:#08243D}
.pn{color:#557E9D}

/* 选型表 */
.sel-table thead th{background:linear-gradient(180deg,#EDF6FF,#E3F0FF);color:#134E7F}
.sel-table tbody tr:hover{background:#F2F9FF}
.table-scroll{border-top-color:#CDE2F5}

/* 方案卡 */
.sol-card{border-color:#D5E6F9}
.sol-card:hover{border-color:#8FBEEA;box-shadow:0 16px 38px rgba(10,98,208,.16);transform:translateY(-3px)}
.sol-body h3{color:#08243D}

/* 分割带：更明显的品牌蓝 */
.band{background:
  radial-gradient(760px 320px at 90% 10%,rgba(10,98,208,.20),transparent 62%),
  linear-gradient(120deg,#E7F2FF,#D8EAFF 55%,#E9F7FF);
  border-top:1px solid #C6DEF6;border-bottom:1px solid #C6DEF6}
.band-list li::before{background:#0A62D0;box-shadow:0 0 0 3px rgba(10,98,208,.12)}

/* 新闻 */
.news-date{color:#2C6FA8}
.news-item h3{color:#0D2B43}

/* 联系页：分区标题放大 */
.c-item{padding:20px 0 20px 16px;border-bottom:1px solid #DCEAF8;border-left:3px solid #E1EDFA;
  transition:border-color .2s,background .2s}
.c-item:hover{border-left-color:#0A62D0;background:linear-gradient(90deg,#F3F9FF,rgba(243,249,255,0))}
.c-item dt{font-size:13.5px;font-weight:600;letter-spacing:.09em;color:#0A62D0;margin-bottom:7px}
.c-item dd{font-size:15px;line-height:1.72;color:#0E2A40}

/* 页脚：淡蓝收束 + 品牌蓝细线 */
.foot{background:linear-gradient(180deg,#F1F8FF,#E3F1FF)}
.foot h4{color:#0A4E96}
.foot::before{height:3px;background:linear-gradient(90deg,rgba(10,98,208,0),#0A62D0 22%,#2C97FF 55%,#00B8D9 80%,rgba(0,184,217,0))}

/* FAQ / 资料中心等蓝色强调 */
.faq-item.on{border-left-color:#0A62D0}
.faq-item:hover{background:#F5FAFF}

/* v3.5 微调：分类图更大、联系页分区标题再放大 */
.cat-card .cat-art{height:140px}
.cat-card .cat-art .cat-photo{padding:4px 10px}
.c-item dt{font-size:15px;letter-spacing:.1em;font-weight:700}
.c-item dt::before{content:"";display:inline-block;width:6px;height:6px;margin-right:8px;vertical-align:2px;
  background:linear-gradient(135deg,#0A62D0,#2C97FF);border-radius:1px}
/* 白底产品图融入浅蓝底 */
.cat-card .cat-art .cat-photo,.prod-media.has-img img{mix-blend-mode:multiply}
/* 中宽屏：导航不换行，必要时横向收缩 */
.nav a{white-space:nowrap}
.nav{overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
@media(max-width:1200px){
  .head-main{gap:18px}
  .nav a{padding:8px 10px;font-size:14.5px}
  .utility-l{max-width:46%}
}
.board-stage.hero-photo img{mix-blend-mode:multiply}
/* 白底实拍图：图区用纯白承托，避免浅蓝底上出现"白方块" */
.prod-media.has-img{background:#fff}
.cat-card .cat-art{background:#fff;border-top:1px solid #E4F0FD}
.prod-media.has-img img,.cat-card .cat-art .cat-photo{mix-blend-mode:normal}
/* 与白底实拍图背景贴近的承托色，弱化方块边界 */
.prod-media.has-img,.cat-card .cat-art{background:#F8FAFC}

/* v3.5.1 首页区块间蓝色细分隔线（内页不加） */
.home > section{position:relative}
.home > section + section::before{
  content:"";position:absolute;top:-20px;left:50%;transform:translateX(-50%);
  width:min(62%,860px);height:1px;
  background:linear-gradient(90deg,transparent,#9CC5F0 16%,#0A62D0 50%,#9CC5F0 84%,transparent)}
.home > section + section::after{
  content:"";position:absolute;top:-24px;left:50%;transform:translateX(-50%) rotate(45deg);
  width:7px;height:7px;background:linear-gradient(135deg,#0A62D0,#2C97FF);
  box-shadow:0 0 0 4px #fff;border-radius:1px}