/* ===== 维科美拓 VicoMeter · 共享样式 ===== */
:root{
  --navy:#0a1e36;--navy-2:#0f2a4a;--blue:#1a6fe0;--cyan:#00b4d8;--cyan-soft:#e6f7fb;
  --ink:#132437;--muted:#5b6b7d;--line:#e3e9f0;--bg:#f5f8fb;--white:#fff;
  --grad:linear-gradient(135deg,#1a6fe0 0%,#00b4d8 100%);
  --radius:14px;--shadow:0 10px 30px rgba(15,42,74,.08);--shadow-lg:0 20px 50px rgba(15,42,74,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
section[id],div[id="factory"],div[id="certs"]{scroll-margin-top:96px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--white);line-height:1.7}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
.container{width:min(1200px,92%);margin:0 auto}

/* ===== 顶部信息条 ===== */
.topbar{background:var(--navy);color:#9fb3cc;font-size:12.5px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px}
.topbar span{display:inline-flex;align-items:center;gap:6px}
.topbar-right{display:flex;gap:22px}

/* ===== 导航 ===== */
#siteHeader{position:sticky;top:-36px;z-index:100}
header.nav{position:relative;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
header.nav.scrolled{box-shadow:var(--shadow)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo{display:flex;align-items:center;gap:12px}
.logo-img{height:34px;width:auto;display:block}
.logo-img-light{height:32px}
@media(max-width:1000px){.logo-img{height:29px}.logo-img-light{height:28px}}
@media(max-width:640px){.logo-img{height:25px}.logo-img-light{height:24px}}
.logo-mark{width:44px;height:44px;border-radius:10px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:20px;letter-spacing:-1px;box-shadow:0 6px 16px rgba(26,111,224,.35)}
.logo-text b{font-size:20px;color:var(--navy);display:block;line-height:1.2}
.logo-text small{font-size:11px;color:var(--muted);letter-spacing:2.5px;text-transform:uppercase}
nav.menu{display:flex;gap:32px;align-self:stretch;align-items:center}
nav.menu > a,.nav-item > a{font-size:15.5px;color:var(--ink);font-weight:500;position:relative;padding:6px 0;display:inline-flex;align-items:center;gap:5px}
nav.menu > a::after,.nav-item > a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2.5px;background:var(--grad);border-radius:2px;transition:width .3s}
nav.menu > a:hover::after,nav.menu > a.active::after,.nav-item:hover > a::after,.nav-item.active > a::after{width:100%}
nav.menu > a:hover,.nav-item > a:hover{color:var(--blue)}
.nav-item{position:relative;display:inline-flex;align-self:stretch;align-items:center}
/* Mega 面板改为相对整个页头（sticky 定位上下文）水平居中：与页面容器对齐，避免相对左侧菜单项定位导致整体偏移/溢出屏幕 */
.nav-item[data-drop="mega"]{position:static}
.nav-item > a .chev{transition:transform .25s;margin-top:1px;opacity:.55}
.nav-item:hover > a .chev{transform:rotate(180deg);opacity:1}
.nav-right{display:flex;align-items:center;gap:14px}
.lang-switch{padding:8px 16px;border-radius:999px;border:1.5px solid var(--line);background:#fff;color:var(--blue);font-size:13.5px;font-weight:700;cursor:pointer;transition:.25s;font-family:inherit}
.lang-switch:hover{border-color:var(--cyan);background:var(--cyan-soft)}
.nav-cta{background:var(--grad);color:#fff;padding:10px 22px;border-radius:999px;font-size:14.5px;font-weight:600;box-shadow:0 6px 16px rgba(26,111,224,.3);transition:transform .25s,box-shadow .25s;display:inline-block}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(26,111,224,.4)}
nav.menu > a.nav-cta-m{display:none}/* 仅移动端汉堡菜单内显示（特异性需高于 nav.menu > a） */

/* ===== 导航下拉菜单（二级 / 三级类目） ===== */
.nav-drop{position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(10px);opacity:0;visibility:hidden;transition:opacity .25s,transform .25s,visibility .25s;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-lg);padding:12px;min-width:250px;z-index:130;text-align:left}
.nav-drop::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px}
.nav-item:hover .nav-drop,.nav-item:focus-within .nav-drop{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.drop-link{display:block;padding:9px 16px;border-radius:9px;color:var(--ink);font-size:14px;line-height:1.5;white-space:nowrap;font-weight:400;transition:.2s}
.drop-link:hover{background:var(--cyan-soft);color:var(--blue)}

/* ===== 产品中心 Mega Menu（一级分类 × 二级分类导航） ===== */
.mega-drop{min-width:min(1120px,calc(100vw - 40px));padding:30px 34px 24px}
.mega-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.mega-cat{display:flex;align-items:center;justify-content:space-between;gap:6px;font-weight:700;color:var(--navy);font-size:14.5px;line-height:1.4;padding:0 0 9px;margin-bottom:9px;border-bottom:2px solid var(--cyan-soft);transition:.2s}
.mega-cat .chev{transform:rotate(-90deg);opacity:.5;flex:none}
.mega-cat:hover{color:var(--blue);border-bottom-color:var(--cyan)}
.mega-link{display:block;font-size:13px;color:var(--muted);padding:6.5px 0;line-height:1.45;transition:.2s;font-weight:400}
.mega-link:hover{color:var(--blue);transform:translateX(3px)}
.mega-link-cat{font-weight:600;color:var(--navy);padding:7px 0}
.mega-link-cat::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--cyan);margin-right:8px;vertical-align:2px;transition:.2s}
.mega-link-cat:hover{color:var(--blue);transform:translateX(3px)}
.mega-link-cat:hover::before{background:var(--blue);transform:scale(1.35)}
.mega-group{margin-bottom:2px}
.mega-group-head{display:flex;align-items:center;gap:4px}
.mega-group-head .mega-link-cat{flex:1;min-width:0}
.mega-tgl{flex:none;display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;color:var(--muted);cursor:pointer;border-radius:5px;transition:.2s;opacity:.65}
.mega-tgl .chev{transform:rotate(-90deg);transition:.2s}
.mega-tgl:hover{background:var(--cyan-soft);color:var(--blue);opacity:1}
.mega-group.open .mega-tgl,.mega-group:hover .mega-tgl{opacity:1;color:var(--blue)}
.mega-group.open .mega-tgl .chev{transform:rotate(0)}
.mega-l3{display:none;padding-left:13px;margin:2px 0 6px;border-left:1px solid var(--line)}
.mega-group:hover .mega-l3,.mega-group.open .mega-l3{display:block;animation:megaFade .18s ease}
@keyframes megaFade{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.mega-link-l3{font-size:12.5px;color:var(--muted);padding-left:8px;padding-top:4.5px;padding-bottom:4.5px}
.mega-group:hover .mega-l3,.mega-group.open .mega-l3{border-left-color:var(--cyan)}
.mega-sub{margin-top:10px;padding-top:8px;border-top:1px dashed var(--line)}
.mega-sub:first-child{margin-top:2px;padding-top:0;border-top:none}
.mega-sub>b{display:block;font-size:12px;font-weight:600;color:var(--blue);letter-spacing:.04em;margin-bottom:2px;padding:4px 0 2px}
.mega-sub .mega-link{font-size:12.5px}
.mega-foot{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.btn-sm{padding:9px 20px;font-size:13.5px}

/* ===== 移动端汉堡按钮 ===== */
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px 4px}
.nav-burger span{display:block;width:22px;height:2.5px;background:var(--navy);border-radius:2px;transition:.3s}
body.menu-open .nav-burger span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
body.menu-open .nav-burger span:nth-child(2){opacity:0}
body.menu-open .nav-burger span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ===== Hero（首页） ===== */
.hero{position:relative;background:linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 55%,#123a63 100%);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(700px 380px at 85% 20%,rgba(0,180,216,.18),transparent 60%),
  radial-gradient(500px 300px at 10% 90%,rgba(26,111,224,.25),transparent 60%)}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at center,black 40%,transparent 78%)}
.hero .container{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center;padding:88px 0 96px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(0,180,216,.14);border:1px solid rgba(0,180,216,.4);color:#7fe3f5;font-size:13px;padding:7px 16px;border-radius:999px;margin-bottom:22px}
.hero h1{font-size:44px;line-height:1.28;font-weight:700;letter-spacing:.5px}
.hero h1 .grad-text{background:linear-gradient(90deg,#5ac8fa,#00e0ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p.sub{margin:22px 0 34px;color:#b8c9dd;font-size:16.5px;max-width:560px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 30px;border-radius:999px;font-size:15.5px;font-weight:600;transition:.25s;cursor:pointer;border:none;font-family:inherit}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(0,180,216,.35)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(0,180,216,.45)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.35)}
.btn-ghost:hover{border-color:#7fe3f5;color:#7fe3f5}
.hero-visual{position:relative}
.instr-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:34px;backdrop-filter:blur(8px);box-shadow:var(--shadow-lg)}
.instr-card svg{width:100%;height:auto}
/* Hero 实拍图（白底产品照嵌在暗色玻璃卡内） */
.instr-photo{background:#fff;border-radius:14px;padding:16px;box-shadow:0 10px 30px rgba(2,12,24,.45)}
.instr-photo img{display:block;width:100%;height:auto;border-radius:8px}
.instr-tags{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap}
.instr-tags span{font-size:12.5px;color:#9fe8f8;background:rgba(0,180,216,.12);border:1px solid rgba(0,180,216,.3);padding:5px 13px;border-radius:999px}
.float-chip{position:absolute;background:#fff;color:var(--ink);border-radius:12px;padding:12px 18px;font-size:13px;font-weight:600;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:10px;animation:float 5s ease-in-out infinite}
.float-chip .dot{width:9px;height:9px;border-radius:50%;background:#2ecc71;box-shadow:0 0 0 4px rgba(46,204,113,.2)}
.chip-1{top:-22px;left:-26px}
.chip-2{bottom:-20px;right:-14px;animation-delay:2.5s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.stats-bar{position:relative;background:rgba(255,255,255,.05);border-top:1px solid rgba(255,255,255,.1)}
.stats-bar .container{display:grid;grid-template-columns:repeat(4,1fr);padding:26px 0}
.stat{text-align:center;border-right:1px solid rgba(255,255,255,.1)}
.stat:last-child{border-right:none}
.stat b{font-size:30px;font-weight:800;color:#fff}
.stat b i{font-style:normal;font-size:15px;color:#7fe3f5;margin-left:2px}
.stat span{display:block;font-size:13px;color:#8fa5bd;margin-top:4px}

/* ===== 通用 Section ===== */
section{padding:86px 0}
.sec-head{text-align:center;max-width:680px;margin:0 auto 54px}
.sec-head .kicker{display:inline-block;color:var(--blue);font-size:13px;font-weight:700;letter-spacing:3px;text-transform:uppercase;margin-bottom:12px}
.sec-head h2{font-size:33px;color:var(--navy);font-weight:700;line-height:1.3}
.sec-head p{color:var(--muted);margin-top:14px;font-size:15.5px}

/* ===== 资质条 ===== */
.trust{background:var(--white);border-bottom:1px solid var(--line);padding:34px 0}
.trust .container{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.trust-item{display:flex;align-items:center;gap:14px;padding:16px 20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:.3s}
.trust-item:hover{border-color:var(--cyan);box-shadow:var(--shadow);transform:translateY(-3px)}
.trust-item .ico{width:42px;height:42px;flex-shrink:0;border-radius:10px;background:var(--cyan-soft);display:flex;align-items:center;justify-content:center}
.trust-item b{font-size:14.5px;display:block;color:var(--navy)}
.trust-item small{font-size:12px;color:var(--muted)}

/* ===== 产品中心（首页） ===== */
.products{background:var(--bg)}
.cat-tabs{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-bottom:44px}
.cat-tab{padding:11px 26px;border-radius:999px;border:1.5px solid var(--line);background:#fff;font-size:15px;font-weight:500;color:var(--muted);cursor:pointer;transition:.25s;white-space:nowrap;font-family:inherit}
.cat-tab:hover{border-color:var(--cyan);color:var(--blue)}
.cat-tab.active{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 6px 18px rgba(26,111,224,.3)}
.product-grid{display:none;grid-template-columns:repeat(4,1fr);gap:24px;animation:fadeUp .5s ease}
.product-grid.show{display:grid}
/* ===== 产品分页器 ===== */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;margin:36px 0 4px}
.pg-btn{min-width:40px;height:40px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--navy);font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;justify-content:center}
.pg-btn:hover:not(:disabled):not(.active){border-color:var(--blue);color:var(--blue);transform:translateY(-1px)}
.pg-btn.active{background:var(--grad);border-color:transparent;color:#fff;cursor:default;box-shadow:0 4px 12px rgba(26,111,224,.28)}
.pg-btn:disabled{opacity:.35;cursor:not-allowed}
.pg-dots{color:#8ba3bd;font-size:14px;padding:0 2px;user-select:none}
@media(max-width:640px){.pg-btn{min-width:36px;height:36px;padding:0 9px;font-size:13px}.pager{gap:6px;margin:26px 0 2px}}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
.p-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:.3s;display:flex;flex-direction:column}
.p-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.p-visual{height:172px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.p-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(10,30,54,.05))}
.p-visual svg{width:120px;height:120px;transition:transform .4s}
.p-card:hover .p-visual svg{transform:scale(1.08)}
/* 产品实拍图卡 */
.p-visual.p-photo{background:#fff}
.p-photo img{width:100%;height:100%;object-fit:contain;padding:16px;transition:transform .4s}
.p-card:hover .p-photo img{transform:scale(1.06)}
/* 详情页主视觉：暗色容器内的白底实拍图 */
.pd-photo-wrap{position:relative;background:#fff;border-radius:14px;display:flex;align-items:center;justify-content:center;padding:24px;box-shadow:0 14px 40px rgba(2,12,24,.5);aspect-ratio:4/3;min-height:300px;overflow:hidden}
.pd-photo-wrap img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;display:block}
/* 详情页缩略图画廊：固定一行 5 个，不跨行 */
.pd-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,.12)}
.pd-thumb{width:100%;aspect-ratio:4/3;border-radius:8px;overflow:hidden;cursor:pointer;border:2px solid transparent;background:#fff;transition:border-color .25s,transform .25s;flex-shrink:0}
.pd-thumb:hover{transform:translateY(-2px);border-color:var(--blue)}
.pd-thumb.active{border-color:var(--blue);box-shadow:0 4px 14px rgba(0,123,255,.3)}
/* 注意：pd-thumb 类直接写在 <img> 上（pages/product.js），img 没有后代 img，
   原来只写 .pd-thumb img 等于没生效 → 回退默认 object-fit:fill，图片被压扁。
   选择器必须同时覆盖 .pd-thumb 自身，才能兼容 img 与 div+img 两种结构。 */
.pd-thumb img{width:100%;height:100%;object-fit:contain;padding:4px}
.pd-thumb{object-fit:contain;padding:4px}
.p-body{padding:20px 20px 22px;flex:1;display:flex;flex-direction:column}
.p-body h3{font-size:15.5px;color:var(--navy);line-height:1.5;font-weight:600;flex:1}
.p-body .p-meta{display:flex;justify-content:space-between;align-items:center;margin-top:14px}
.p-spec{font-size:12px;color:var(--blue);background:#eaf2fd;padding:3px 10px;border-radius:999px;font-weight:600}
.p-link{font-size:13px;color:var(--muted);display:inline-flex;align-items:center;gap:4px;transition:.25s}
.p-card:hover .p-link{color:var(--blue);gap:8px}
.products-more{text-align:center;margin-top:44px}

/* ===== 行业应用（首页） ===== */
.apps{background:#fff}
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.app-card{position:relative;border-radius:var(--radius);overflow:hidden;height:300px;color:#fff;display:flex;flex-direction:column;justify-content:flex-end;padding:28px;transition:transform .35s}
.app-card:hover{transform:translateY(-6px)}
.app-card .bg{position:absolute;inset:0;transition:transform .6s}
.app-card:hover .bg{transform:scale(1.07)}
.app-card .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,30,54,.05) 20%,rgba(10,30,54,.88) 100%)}
.app-card h3{position:relative;font-size:20px;margin-bottom:8px}
.app-card p{position:relative;font-size:13.5px;color:rgba(255,255,255,.82);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.app-card .tag{position:absolute;top:22px;left:22px;background:rgba(255,255,255,.16);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.3);padding:5px 14px;border-radius:999px;font-size:12.5px;font-weight:600}

/* ===== 新闻（首页） ===== */
.news{background:var(--bg)}
.news-layout{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.news-col{background:#fff;border-radius:var(--radius);border:1px solid var(--line);padding:30px}
.news-col h3{font-size:19px;color:var(--navy);display:flex;align-items:center;gap:10px;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.news-col h3 .bar{width:4px;height:20px;background:var(--grad);border-radius:2px}
.news-col h3 .more{margin-left:auto;font-size:13px;color:var(--muted);font-weight:400}
.news-item{display:flex;gap:16px;padding:14px 0;border-bottom:1px dashed var(--line);cursor:pointer}
.news-item:last-child{border-bottom:none}
.news-item:hover .n-title{color:var(--blue)}
.n-date{flex-shrink:0;text-align:center;background:var(--cyan-soft);border-radius:10px;padding:8px 12px;min-width:58px}
.n-date b{display:block;font-size:20px;color:var(--blue);line-height:1.2}
.n-date span{font-size:11px;color:var(--muted)}
.n-title{font-size:15px;color:var(--ink);font-weight:500;line-height:1.5;transition:.25s;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.n-desc{font-size:13px;color:var(--muted);margin-top:5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ===== 公司介绍 ===== */
.about{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.about::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 400px at 90% 10%,rgba(0,180,216,.15),transparent 60%)}
.about .container{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.about .sec-head{text-align:left;margin:0 0 26px;max-width:none}
.about .sec-head h2{color:#fff}
.about .sec-head p{color:#b8c9dd;text-align:left}
.about-points{margin-top:26px;display:grid;gap:14px}
.about-points li{display:flex;gap:12px;align-items:flex-start;color:#cdd9e8;font-size:15px}
.about-points .ck{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:rgba(0,180,216,.18);display:flex;align-items:center;justify-content:center;margin-top:4px}
.about-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.about .container.factory-wrap{display:block}
/* 6 张工厂实景统一卡片尺寸，桌面 3 列 × 2 行；≤1000px 两列，≤640px 单列 */
.factory-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.factory-grid img{width:100%;height:220px;object-fit:cover;border-radius:var(--radius);transition:transform .4s,box-shadow .4s}
.factory-grid img:hover{transform:scale(1.04);box-shadow:0 10px 30px rgba(0,0,0,.4)}
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cert-grid img{width:100%;height:240px;object-fit:contain;background:#fff;border-radius:var(--radius);padding:12px;transition:transform .4s,box-shadow .4s}
.cert-grid img:hover{transform:scale(1.05);box-shadow:0 10px 30px rgba(0,0,0,.3)}
.about .sec-head{color:#fff}
.about .sec-head .kicker{color:#7fe3f5}
.about .sec-head h2{color:#fff;margin-bottom:0}
.a-stat{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:28px;transition:.3s}
.a-stat:hover{background:rgba(255,255,255,.09);transform:translateY(-4px)}
.a-stat b{font-size:34px;font-weight:800;background:linear-gradient(90deg,#5ac8fa,#00e0ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;display:block}
.a-stat span{font-size:13.5px;color:#8fa5bd;display:block;margin-top:6px}

/* ===== 技术支持 ===== */
.support{background:#fff}
.support-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.s-card{border:1px solid var(--line);border-radius:var(--radius);padding:32px 26px;text-align:center;transition:.3s;position:relative;overflow:hidden}
.s-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);transform:scaleX(0);transition:transform .35s;transform-origin:left}
.s-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px);border-color:transparent}
.s-card:hover::before{transform:scaleX(1)}
.s-card .ico{width:64px;height:64px;margin:0 auto 20px;border-radius:18px;background:var(--cyan-soft);display:flex;align-items:center;justify-content:center;transition:.3s}
.s-card:hover .ico{background:var(--grad)}
.s-card:hover .ico svg path,.s-card:hover .ico svg circle,.s-card:hover .ico svg rect{stroke:#fff}
.s-card h3{font-size:18px;color:var(--navy);margin-bottom:10px}
.s-card p{font-size:13.5px;color:var(--muted)}

/* ===== CTA ===== */
.cta{background:linear-gradient(120deg,#0d2b4f,#123a63);position:relative;overflow:hidden;padding:70px 0}
.cta::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px}
.cta .container{position:relative;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cta h2{color:#fff;font-size:29px}
.cta p{color:#9fb3cc;margin-top:8px;font-size:15px}

/* ===== 页脚 ===== */
footer{background:var(--navy);color:#8fa5bd;font-size:14px}
.footer-main{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:44px;padding:64px 0 50px}
.footer-main h4{color:#fff;font-size:16px;margin-bottom:20px;position:relative;padding-bottom:12px}
.footer-main h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:2.5px;background:var(--cyan);border-radius:2px}
.f-about p{font-size:13.5px;line-height:1.8;margin-top:16px}
.f-links li{margin-bottom:11px;cursor:pointer;transition:.25s;font-size:13.5px}
.f-links li:hover{color:#7fe3f5;transform:translateX(4px)}
/* 整行可点：链接块级填满 li，使 hover 区域与点击区域一致 */
.f-links li a{display:block;color:inherit}
.f-contact li{display:flex;gap:10px;margin-bottom:14px;font-size:13.5px;align-items:flex-start}
.f-contact svg{flex-shrink:0;margin-top:3px}
/* 服务热线 / 企业电话：整行可点击拨打，但视觉保持与纯文本一致 */
.f-contact a{color:inherit;text-decoration:none;transition:color .2s}
.f-contact a:hover{color:#00b4d8}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;display:flex;justify-content:space-between;font-size:12.5px;color:#5b6b7d;flex-wrap:wrap;gap:10px}
.footer-bottom .footer-record a{color:#7d8a99;text-decoration:none;transition:color .2s}
.footer-bottom .footer-record a:hover{color:#00b4d8}
.footer-bottom .footer-record-sep{margin:0 8px;color:#3d4d5d}
.footer-bottom .footer-record-police{display:inline-flex;align-items:center;gap:4px}
.footer-police-badge{width:16px;height:16px;vertical-align:-3px;flex:0 0 auto}

/* ===== 悬浮工具 ===== */
.fab{position:fixed;right:24px;bottom:30px;display:flex;flex-direction:column;gap:12px;z-index:90}
.fab a{width:52px;height:52px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 22px rgba(26,111,224,.4);transition:.3s}
.fab a:hover{transform:translateY(-4px) scale(1.05)}
.fab .top{background:var(--navy-2);box-shadow:0 8px 22px rgba(10,30,54,.35)}
.fab-item{position:relative}
.fab-item svg{pointer-events:none}
/* 悬停气泡（微信二维码 / 电话号码） */
/* right:100%+margin 而非固定 px：绝对定位元素若被 right:64px 约束，可用宽度会算成
   containing block(52px) 减 64px = 负数，shrink-to-fit 被压到 min-content，
   二维码 132px 宽被压成 85px 而 height 仍是 132px → 竖向拉长 1.5 倍。
   width:max-content 明确按内容取宽，不再受 containing block 限制。 */
.fab-pop{position:absolute;right:100%;margin-right:12px;top:50%;transform:translateY(-50%) translateX(8px);width:max-content;max-width:calc(100vw - 140px);background:#fff;border-radius:14px;padding:14px 16px;box-shadow:0 14px 40px rgba(10,30,54,.22);white-space:nowrap;opacity:0;visibility:hidden;transition:.28s;display:flex;flex-direction:column;align-items:center;gap:8px}
.fab-pop::after{content:"";position:absolute;right:-6px;top:50%;transform:translateY(-50%) rotate(45deg);width:12px;height:12px;background:#fff;border-top:1px solid #eef2f7;border-right:1px solid #eef2f7}
.fab-item:hover .fab-pop{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
.fab-pop-qr b{font-size:12.5px;color:var(--ink);font-weight:600}
.fab-pop-mail{padding:14px 18px;gap:6px}
.fab-pop-mail b{font-size:14.5px;color:var(--ink);font-weight:600;font-family:"SF Mono","Menlo","Consolas","Roboto Mono",monospace;letter-spacing:.3px}
.fab-pop .qr-box{display:block;padding:8px;border:1px solid var(--line);border-radius:10px;background:#fff}
/* 二维码强制 1:1：width 定宽 + aspect-ratio 推高 + object-fit 兜底，任何挤压下都不变形 */
.fab-pop .qr-box img{display:block;width:132px;height:auto;aspect-ratio:1/1;object-fit:contain;border-radius:4px}
.fab-pop .hint{font-size:11.5px;color:var(--muted);font-style:normal;margin-top:-2px}
.fab-pop-phone{padding:12px 18px;gap:3px;align-items:flex-start}
.fab-pop-phone b{font-size:17px;color:var(--navy);font-weight:700;letter-spacing:.5px}
.fab-pop-phone i{font-size:11.5px;color:var(--muted);font-style:normal}
/* 客服在线红点 */
.fab-dot{position:absolute;top:4px;right:5px;width:10px;height:10px;border-radius:50%;background:#2ecc71;border:2px solid #fff;box-shadow:0 0 0 0 rgba(46,204,113,.5);animation:cwpulse 2s infinite}
@keyframes cwpulse{0%{box-shadow:0 0 0 0 rgba(46,204,113,.5)}70%{box-shadow:0 0 0 8px rgba(46,204,113,0)}100%{box-shadow:0 0 0 0 rgba(46,204,113,0)}}
/* ===== 在线客服聊天窗 ===== */
.chatwin{position:fixed;right:24px;bottom:100px;width:330px;max-width:calc(100vw - 48px);background:#fff;border-radius:18px;box-shadow:0 24px 60px rgba(10,30,54,.3);z-index:95;overflow:hidden;opacity:0;visibility:hidden;transform:translateY(16px) scale(.97);transition:.3s}
.chatwin.open{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.cw-head{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;padding:14px 16px;display:flex;justify-content:space-between;align-items:center}
.cw-title{display:flex;gap:11px;align-items:center}
.cw-avatar{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center}
.cw-title b{font-size:15px;display:block}
.cw-title small{font-size:11.5px;color:rgba(255,255,255,.85);display:flex;align-items:center;gap:5px}
.cw-online{width:7px;height:7px;border-radius:50%;background:#2ecc71;display:inline-block;box-shadow:0 0 0 3px rgba(46,204,113,.25)}
.cw-close{background:none;border:none;color:#fff;font-size:22px;line-height:1;cursor:pointer;padding:0 2px;opacity:.85}
.cw-close:hover{opacity:1}
.cw-body{height:210px;overflow-y:auto;padding:14px;background:var(--bg);display:flex;flex-direction:column;gap:10px}
.cw-msg{max-width:82%;padding:9px 13px;border-radius:13px;font-size:13.5px;line-height:1.55}
.cw-msg.bot{background:#fff;color:var(--ink);border:1px solid var(--line);border-top-left-radius:4px;align-self:flex-start}
.cw-msg.user{background:var(--grad);color:#fff;border-top-right-radius:4px;align-self:flex-end}
.cw-quick{display:flex;gap:8px;padding:10px 14px 4px;flex-wrap:wrap}
.cw-quick button{border:1px solid var(--blue);color:var(--blue);background:rgba(26,111,224,.06);border-radius:999px;padding:5px 13px;font-size:12px;cursor:pointer;transition:.2s}
.cw-quick button:hover{background:var(--blue);color:#fff}
.cw-input{display:flex;gap:8px;padding:10px 14px 14px}
.cw-input input{flex:1;border:1px solid var(--line);border-radius:10px;padding:9px 12px;font-size:13px;outline:none;transition:.2s}
.cw-input input:focus{border-color:var(--blue)}
.cw-input button{background:var(--grad);color:#fff;border:none;border-radius:10px;padding:0 18px;font-size:13px;font-weight:600;cursor:pointer;transition:.2s}
.cw-input button:hover{filter:brightness(1.08)}
@media (max-width:640px){
  .fab{right:14px;bottom:18px;gap:10px}
  .fab a{width:46px;height:46px}
  .fab-pop{display:none}
  .chatwin{right:14px;bottom:84px}
}

/* ===== 子页：面包屑 ===== */
.crumb{background:var(--bg);border-bottom:1px solid var(--line);padding:18px 0;font-size:13.5px;color:var(--muted)}
.crumb a:hover{color:var(--blue)}
.crumb .sep{margin:0 8px;color:#b6c2cf}
.crumb b{color:var(--ink);font-weight:600}

/* ===== 子页页头（列表页 Hero） ===== */
.page-hero{position:relative;background:linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 60%,#123a63 100%);color:#fff;overflow:hidden;padding:72px 0}
.page-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 320px at 85% 25%,rgba(0,180,216,.18),transparent 60%)}
.page-hero .container{position:relative}
.page-hero .kicker{display:inline-block;color:#7fe3f5;font-size:13px;font-weight:700;letter-spacing:3px;text-transform:uppercase;margin-bottom:14px}
.page-hero h1{font-size:36px;font-weight:700;line-height:1.3}
.page-hero p{color:#b8c9dd;margin-top:14px;font-size:16px;max-width:640px}

/* ===== 产品详情 ===== */
.pd-hero{padding:56px 0 64px}
.pd-layout{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.pd-visual{background:linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 55%,#123a63 100%);border-radius:20px;padding:44px;position:relative;overflow:hidden;box-shadow:var(--shadow-lg);min-height:400px}
.pd-visual::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:46px 46px;mask-image:radial-gradient(ellipse at center,black 30%,transparent 75%)}
.pd-visual svg{position:relative;width:100%;height:auto;max-height:380px}
.pd-info h1{font-size:31px;color:var(--navy);line-height:1.35;font-weight:700}
.pd-tagline{margin:14px 0 22px;color:var(--muted);font-size:15.5px}
.pd-spec-chips{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.pd-spec-chips span{font-size:13px;color:var(--blue);background:#eaf2fd;padding:6px 15px;border-radius:999px;font-weight:600}
.pd-points{margin-bottom:30px;display:grid;gap:12px}
.pd-points li{display:flex;gap:10px;font-size:14.5px;color:var(--ink);align-items:flex-start}
.pd-points .ck{flex-shrink:0;width:21px;height:21px;border-radius:50%;background:var(--cyan-soft);display:flex;align-items:center;justify-content:center;margin-top:3px}
.pd-actions{display:flex;gap:14px;flex-wrap:wrap}
.pd-section{padding:56px 0;border-top:1px solid var(--line)}
.pd-section.alt{background:var(--bg)}
.sec-title{display:flex;align-items:center;gap:12px;margin-bottom:34px}
.sec-title .bar{width:5px;height:24px;background:var(--grad);border-radius:3px}
.sec-title h2{font-size:25px;color:var(--navy);font-weight:700}
.sec-title small{color:var(--muted);font-size:13px;letter-spacing:2px;text-transform:uppercase;margin-left:4px}
.pd-desc{font-size:15.5px;color:var(--ink)}
.pd-desc p{margin-bottom:14px}
.spec-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);font-size:14.5px}
.spec-table th,.spec-table td{padding:14px 22px;border-bottom:1px solid var(--line);text-align:left}
.spec-table th{background:#f0f6fc;color:var(--navy);font-weight:600;width:32%}
.spec-table tr:last-child td,.spec-table tr:last-child th{border-bottom:none}
.spec-table tr:hover td,.spec-table tr:hover th{background:#f8fbfe}
.spec-note{font-size:13px;color:var(--muted);margin-top:14px}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.3s}
.feat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:transparent}
.feat-card .num{font-size:13px;font-weight:800;color:var(--cyan);letter-spacing:1px;margin-bottom:10px}
.feat-card h3{font-size:16.5px;color:var(--navy);margin-bottom:8px}
.feat-card p{font-size:13.5px;color:var(--muted)}
.app-tags{display:flex;gap:12px;flex-wrap:wrap}
.app-tags span{font-size:14px;padding:10px 22px;border-radius:999px;background:#fff;border:1.5px solid var(--line);color:var(--ink);font-weight:500;transition:.25s}
.app-tags span:hover{border-color:var(--cyan);color:var(--blue);transform:translateY(-2px)}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* ===== 新闻列表页 ===== */
.news-list-hero{background:var(--bg)}
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:40px}
.article-layout{display:grid;grid-template-columns:2.2fr 1fr;gap:44px;align-items:start}
.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:transparent}
.ac-thumb{width:100%;height:200px;overflow:hidden;background:var(--bg)}
.ac-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.article-card:hover .ac-thumb img{transform:scale(1.06)}
.article-hero-img{width:100%;max-height:420px;object-fit:cover;border-radius:var(--radius);margin-bottom:30px}
.ac-body{padding:26px 28px 28px;flex:1;display:flex;flex-direction:column}
.ac-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.ac-type{font-size:12px;font-weight:700;padding:3px 12px;border-radius:999px;letter-spacing:.5px}
.ac-type.tech{background:#eaf2fd;color:var(--blue)}
.ac-type.company{background:#fdf1e6;color:#d97a1e}
.ac-date{font-size:13px;color:var(--muted)}
.ac-body h3{font-size:18.5px;color:var(--navy);line-height:1.5;font-weight:600;flex:1}
.ac-body h3:hover{color:var(--blue)}
.ac-body p{font-size:13.5px;color:var(--muted);margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ac-link{font-size:13.5px;color:var(--blue);margin-top:16px;font-weight:600}
.news-list-grid{display:grid;gap:24px}
.aside-col h3{font-size:17px;color:var(--navy);margin-bottom:18px;display:flex;align-items:center;gap:10px}
.aside-col h3 .bar{width:4px;height:18px;background:var(--grad);border-radius:2px}
.hot-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);cursor:pointer}
.hot-item:last-child{border-bottom:none}
.hot-item:hover .hot-t{color:var(--blue)}
.hot-item .hot-t{font-size:14px;font-weight:500;line-height:1.5;transition:.25s;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ===== 文章详情页 ===== */
.article-wrap{max-width:860px;margin:0 auto}
.back-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--muted);margin-bottom:26px;transition:.25s}
.back-link:hover{color:var(--blue)}
.article-head h1{font-size:30px;color:var(--navy);line-height:1.45;font-weight:700}
.article-head .ac-meta{margin:16px 0 26px}
.article-summary{background:var(--cyan-soft);border-left:4px solid var(--cyan);border-radius:0 var(--radius) var(--radius) 0;padding:18px 24px;font-size:14.5px;color:var(--ink);margin-bottom:30px}
.article-body p{font-size:15.5px;color:var(--ink);margin-bottom:18px;text-align:justify}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:44px}
.article-nav a{border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;transition:.25s;background:#fff}
.article-nav a:hover{border-color:var(--cyan);box-shadow:var(--shadow)}
.article-nav small{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
.article-nav b{font-size:14.5px;color:var(--navy);font-weight:600;line-height:1.5;display:block}

/* ===== 方案列表页 ===== */
.sol-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.sol-card{position:relative;border-radius:var(--radius);overflow:hidden;color:#fff;min-height:260px;display:flex;flex-direction:column;justify-content:flex-end;padding:30px;transition:transform .35s}
.sol-card:hover{transform:translateY(-6px)}
.sol-card .bg{position:absolute;inset:0;transition:transform .6s}
.sol-card:hover .bg{transform:scale(1.06)}
.sol-card .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,30,54,.05) 15%,rgba(10,30,54,.9) 100%)}
.sol-card .tag{position:relative;align-self:flex-start;background:rgba(255,255,255,.16);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.3);padding:5px 14px;border-radius:999px;font-size:12.5px;font-weight:600;margin-bottom:auto}
.sol-card h3{position:relative;font-size:21px;margin-top:16px}
.sol-card p{position:relative;font-size:13.5px;color:rgba(255,255,255,.85);margin-top:8px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.sol-card .more{position:relative;font-size:13.5px;color:#7fe3f5;font-weight:600;margin-top:14px}

/* ===== 方案详情页 ===== */
.sol-head{background:var(--navy);color:#fff;padding:64px 0;position:relative;overflow:hidden}
.sol-head::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 320px at 88% 20%,rgba(0,180,216,.2),transparent 60%)}
.sol-head .container{position:relative}
.sol-head .tag{display:inline-block;background:rgba(0,180,216,.15);border:1px solid rgba(0,180,216,.45);color:#7fe3f5;font-size:13px;padding:5px 16px;border-radius:999px;font-weight:600;margin-bottom:18px}
.sol-head h1{font-size:33px;font-weight:700;line-height:1.35;max-width:820px}
.sol-head p{color:#b8c9dd;font-size:16px;margin-top:16px;max-width:760px}
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.pain-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:.3s}
.pain-item:hover{border-color:#f3b6a4;box-shadow:var(--shadow)}
.pain-item .ico{flex-shrink:0;width:38px;height:38px;border-radius:10px;background:#fdf1e6;display:flex;align-items:center;justify-content:center;font-size:17px}
.pain-item p{font-size:14.5px;color:var(--ink);align-self:center}
.value-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.value-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:.3s}
.value-item:hover{border-color:var(--cyan);box-shadow:var(--shadow)}
.value-item .ck{flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--cyan-soft);display:flex;align-items:center;justify-content:center;margin-top:2px}
.value-item p{font-size:14.5px;color:var(--ink);align-self:center}
.sol-prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sol-desc{font-size:15.5px;color:var(--ink);max-width:900px}
.sol-desc p{margin-bottom:14px}

/* ===== 客户案例页 ===== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-decoration:none;transition:.28s}
.case-card:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(10,30,54,.13);border-color:var(--cyan)}
.case-thumb{position:relative;height:195px;overflow:hidden;background:var(--bg);flex:none}
.case-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.case-card:hover .case-thumb img{transform:scale(1.06)}
.case-thumb-empty{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#123457,#1a6fe0)}
.case-thumb-empty span{font-size:32px;font-weight:800;color:rgba(255,255,255,.9);letter-spacing:2px}
.case-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.case-body h3{font-size:16.5px;font-weight:600;color:var(--navy);line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.case-body p{font-size:13.5px;color:var(--muted);line-height:1.75;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.case-prods{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;align-items:center}
.case-cat-chip{font-size:11.5px;font-weight:600;color:#fff;background:linear-gradient(135deg,#123457,#1a6fe0);border-radius:6px;padding:3px 10px;white-space:nowrap;letter-spacing:.5px}
.case-prod-chip{font-size:11.5px;font-weight:500;color:var(--blue);background:rgba(26,111,224,.07);border:1px solid rgba(26,111,224,.16);border-radius:999px;padding:3px 11px;white-space:nowrap;max-width:100%;overflow:hidden;text-overflow:ellipsis}
.case-prod-more{color:var(--muted);background:var(--bg);border-color:var(--line);border-radius:6px}
/* 案例详情侧栏分类标签 */
.hot-tag{flex-shrink:0;font-size:11.5px;font-weight:600;color:#0e7490;background:var(--cyan-soft);border-radius:6px;padding:3px 9px;height:fit-content;margin-top:2px;white-space:nowrap}

/* ===== 产品列表页 ===== */
.pl-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.pl-search-wrap{position:relative;flex-shrink:0}
.pl-search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);pointer-events:none}
.pl-search{padding:12px 16px 12px 42px;border:1.5px solid var(--line);border-radius:999px;font-size:14px;width:280px;outline:none;transition:.25s;background:#fff;font-family:inherit;color:var(--ink)}
.pl-search:focus{border-color:var(--blue);box-shadow:0 4px 16px rgba(26,111,224,.12)}
.pl-count{font-size:14px;color:var(--muted);margin-bottom:24px;font-weight:500}
.pl-empty{display:none;flex-direction:column;align-items:center;gap:16px;padding:80px 0;text-align:center}
.pl-empty p{color:var(--muted);font-size:16px}
/* 二级/三级…联动 chips */
.pl-subbar{flex-direction:column;gap:10px;margin:-14px 0 24px}
.pl-chip-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding-left:6px;border-left:2px solid var(--cyan-soft)}
.pl-chip-row+.pl-chip-row{margin-top:4px}
.pl-chip-row-label{flex:none;font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.04em;margin-right:2px}
.cat-chip{padding:6px 16px;border-radius:999px;border:1.5px solid var(--line);background:#fff;font-size:13px;color:var(--muted);cursor:pointer;transition:.2s;white-space:nowrap;font-family:inherit}
.cat-chip:hover{border-color:var(--cyan);color:var(--blue)}
.cat-chip.active{background:var(--navy);border-color:var(--navy);color:#fff;font-weight:600}

/* ===== 产品详情页轮播增强 ===== */
.pd-carousel{position:relative}
.pd-carousel-main{position:relative;border-radius:12px;overflow:hidden}
.pd-carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.85);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:5;transition:.25s;box-shadow:0 4px 14px rgba(0,0,0,.15)}
.pd-carousel-arrow:hover{background:#fff;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.pd-carousel-arrow.prev{left:12px}
.pd-carousel-arrow.next{right:12px}
.pd-carousel-arrow svg{pointer-events:none}
.pd-counter{position:absolute;bottom:12px;right:14px;background:rgba(10,30,54,.6);color:#fff;font-size:12px;padding:3px 12px;border-radius:999px;font-weight:600;backdrop-filter:blur(4px)}
.pd-main-img{width:100%;height:auto;object-fit:contain;display:block;transition:opacity .3s}
.pd-lightbox{position:fixed;inset:0;background:rgba(0,0,0,.9);z-index:9999;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:.3s}
.pd-lightbox.open{opacity:1;visibility:visible}
.pd-lightbox img{max-width:90vw;max-height:85vh;object-fit:contain;border-radius:8px}
.pd-lightbox-close{position:absolute;top:20px;right:24px;background:none;border:none;color:#fff;font-size:36px;cursor:pointer;line-height:1;opacity:.8}
.pd-lightbox-close:hover{opacity:1}
.pd-lightbox-arrow{position:absolute;top:50%;transform:translateY(-50%);background:none;border:none;color:#fff;font-size:40px;cursor:pointer;padding:16px;opacity:.6;transition:.2s}
.pd-lightbox-arrow:hover{opacity:1}
.pd-lightbox-arrow.prev{left:10px}
.pd-lightbox-arrow.next{right:10px}

/* ===== 响应式 ===== */
@media(max-width:1000px){
  .hero .container{grid-template-columns:1fr;padding:60px 0 70px}
  .hero h1{font-size:33px}
  .hero-visual{max-width:520px;margin:0 auto;width:100%}
  .trust .container,.support-grid{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .app-grid{grid-template-columns:repeat(2,1fr)}
  .news-layout{grid-template-columns:1fr}
  .about .container{grid-template-columns:1fr}
  .factory-grid{grid-template-columns:repeat(2,1fr)}
  .footer-main{grid-template-columns:repeat(2,1fr)}
  .stats-bar .container{grid-template-columns:repeat(2,1fr)}
  .stat{border:none;padding:10px 0}
  .pd-layout{grid-template-columns:1fr}
  .feat-grid,.rel-grid,.sol-prod-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
  .sol-grid,.pain-grid,.value-grid{grid-template-columns:1fr}
  .article-layout{grid-template-columns:1fr}
  .mega-grid{grid-template-columns:repeat(3,1fr);gap:22px}
  .mega-drop{min-width:min(720px,calc(100vw - 30px));padding:24px 26px 20px}
}
/* ===== 导航折叠（≤900px：手机 / 平板 / 横屏）=====
   导航折叠断点比版式断点(640px)高：7 个一级菜单在 900px 以下横向排不下，
   会压缩成竖排单字。故 ≤900px 统一改为汉堡菜单。 */
@media(max-width:900px){
  .nav-burger{display:flex}
  /* 取消毛玻璃：backdrop-filter 会让 header.nav 成为内部 position:fixed 元素的包含块，
     导致展开菜单的 top/bottom 相对 75px 高的导航条而非视口解析（菜单被压成小条、显示不全） */
  header.nav{backdrop-filter:none}
  /* 顶栏不滚出视口，保证头部高度恒定（36px 顶栏 + 75px 导航 = 111px），展开菜单顶部正好贴合 */
  #siteHeader{top:0}
  .nav-cta{display:none}
  /* 移动端菜单里的「获取方案」入口（桌面端隐藏） */
  nav.menu > a.nav-cta-m{display:block;margin:18px 0 0;text-align:center;background:var(--grad);color:#fff;
    border-radius:999px;padding:14px 20px;font-size:15.5px;font-weight:600;border-bottom:none;
    box-shadow:0 8px 20px rgba(26,111,224,.28)}
  nav.menu > a.nav-cta-m::after{display:none}
  nav.menu{display:none;position:fixed;top:111px;left:0;right:0;bottom:0;background:#fff;flex-direction:column;gap:0;padding:14px 5% 50px;overflow-y:auto;-webkit-overflow-scrolling:touch;z-index:99;box-shadow:0 -12px 40px rgba(15,42,74,.12);align-items:stretch;align-self:auto}
  body.menu-open nav.menu{display:flex}
  nav.menu > a{padding:15px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav-item{display:block;width:100%}
  .nav-item > a{width:100%;justify-content:space-between;padding:15px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav-item > a .chev{transform:rotate(-90deg);flex:none}
  .nav-item.sub-open > a .chev{transform:rotate(180deg)}
  .nav-drop{position:static;opacity:1;visibility:visible;transform:none;display:none;box-shadow:none;border:none;padding:4px 0 10px;min-width:0}
  .nav-item.sub-open .nav-drop{display:block}
  .mega-drop{padding:4px 0 10px}
  .mega-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .mega-col{border:1px solid var(--line);border-radius:12px;padding:12px 14px}
  .mega-cat{padding:0;margin:0 0 6px;border-bottom-width:1.5px}
  .mega-tgl{width:30px;height:30px;background:var(--cyan-soft);opacity:1}
  .mega-l3{padding-left:10px}
  .mega-foot{flex-direction:column;align-items:flex-start;gap:10px;margin-top:10px;padding-top:12px}
  .drop-link{padding:11px 14px;border:1px solid var(--line);border-radius:10px;margin-bottom:6px;white-space:normal}
}
@media(max-width:640px){
  .mega-grid{grid-template-columns:1fr;gap:8px}
  .topbar-right{display:none}
  .product-grid,.app-grid,.trust .container,.support-grid,.footer-main,.feat-grid,.rel-grid,.sol-prod-grid,.case-grid{grid-template-columns:1fr}
  .factory-grid{grid-template-columns:1fr}
  .factory-grid img{height:190px}
  .case-thumb{height:210px}
  .article-wrap{padding:26px 22px !important}
  section{padding:60px 0}
  .hero h1{font-size:27px}
  .cat-tab{padding:9px 18px;font-size:13.5px}
  .pd-info h1{font-size:25px}
  .pd-visual{padding:22px;min-height:0}
  .pd-photo-wrap{aspect-ratio:1/1;min-height:240px;padding:14px}
  .pd-thumbs{margin-top:14px;padding-top:12px;gap:8px}
  .pd-thumb{aspect-ratio:1/1}
  .article-nav{grid-template-columns:1fr}
  .page-hero h1{font-size:27px}
  .sol-head h1{font-size:25px}
  .contact-wrap{grid-template-columns:1fr}
  .ct-form{padding:24px 20px}
  .ct-row{padding:16px 18px}
}

/* ===== 联系我们页 ===== */
.contact-sec{padding:64px 0;background:var(--bg)}
.contact-wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:34px;align-items:start}
.ct-col-h{font-size:19px;color:var(--navy);margin-bottom:16px}
.ct-info{display:flex;flex-direction:column}
.ct-row{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;margin-bottom:12px;transition:.25s}
.ct-row:hover{border-color:var(--cyan);box-shadow:var(--shadow);transform:translateX(3px)}
.ct-row .ico{width:46px;height:46px;flex-shrink:0;border-radius:12px;background:var(--cyan-soft);display:flex;align-items:center;justify-content:center}
.ct-row h4{font-size:12.5px;color:var(--muted);font-weight:600;margin-bottom:3px;letter-spacing:.5px}
.ct-row p{font-size:15px;color:var(--navy);font-weight:600;line-height:1.55}
.ct-row p small{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:3px;letter-spacing:.3px}
.ct-row p a{color:var(--blue)}
.ct-row p a:hover{text-decoration:underline}
/* 微信客服行：二维码贴右 */
.ct-row-wechat{align-items:center}
.ct-row-wechat > div:not(.ico){flex:1 1 auto;min-width:0}
.ct-wechat-qr{flex:0 0 auto;width:104px;height:auto;aspect-ratio:1/1;object-fit:contain;border:1px solid var(--line);border-radius:10px;background:#fff;padding:4px;display:block}
.ct-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 30px;box-shadow:var(--shadow);position:sticky;top:100px}
.ct-form h3{font-size:19px;color:var(--navy);margin-bottom:6px}
.ct-form-p{font-size:13px;color:var(--muted);margin-bottom:22px;line-height:1.6}
.ct-field{margin-bottom:16px}
.ct-field label{display:block;font-size:13px;font-weight:600;color:var(--navy);margin-bottom:7px}
.ct-field input,.ct-field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;color:var(--ink);background:var(--bg);transition:.25s}
.ct-field input:focus,.ct-field textarea:focus{outline:none;border-color:var(--cyan);background:#fff;box-shadow:0 0 0 3px rgba(0,180,216,.12)}
.ct-field textarea{min-height:110px;resize:vertical}
.ct-form .btn{width:100%;justify-content:center}
.ct-form .btn:disabled{opacity:.6;cursor:wait}
.ct-status{font-size:13.5px;margin-top:14px;text-align:center;line-height:1.7;padding:12px 16px;border-radius:10px;display:none}
.ct-status:not(:empty){display:block}
.ct-status.ok{background:#e8f8ef;color:#0d7a43;border:1px solid #b8e6cd}
.ct-status.err{background:#fdeeee;color:#b4232a;border:1px solid #f5c9cc}
.ct-note{font-size:12.5px;color:var(--muted);margin-top:14px;text-align:center;line-height:1.7}
/* 注意：本区块的响应式覆盖必须写在这里（基础 .contact-wrap/.ct-form 定义之后），
   写在上方通用 @media(max-width:640px) 块里会被后面的同名基础规则按顺序覆盖掉。 */
@media(max-width:640px){
  .contact-wrap{grid-template-columns:1fr;gap:22px}
  .ct-form{padding:24px 20px;position:static;top:auto}
  .ct-row{padding:16px 18px}
  /* 微信行窄屏改上下排：图标+文字一行，二维码居中换行 */
  .ct-row-wechat{flex-wrap:wrap;align-items:center;gap:12px}
  .ct-row-wechat > div:not(.ico){flex:1 1 calc(100% - 60px);min-width:0}
  .ct-wechat-qr{flex:0 0 auto;width:132px;height:auto;aspect-ratio:1/1;object-fit:contain;margin:2px auto 0;padding:4px}
}

/* ===== 分享按钮 + 分享面板 ============================================
   触发：i18n.js injectShareButtons() 自动注入到详情页
   - 产品详情：.pd-info 末尾（在询价按钮下方）
   - 文章详情：.article-wrap 末尾（与正文分隔线之下）
   行为：点击 → navigator.share()；不支持则弹 .share-mask 面板
   ====================================================================== */
.share-btn-host{margin-top:14px;display:flex}
.share-btn-host--article{margin-top:28px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:flex-end}

.share-btn{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:10px;
  font-size:14px;font-weight:500;cursor:pointer;transition:.25s;font-family:inherit;
  background:rgba(0,225,255,.10);border:1px solid rgba(0,225,255,.38);color:#7fe3f5}
.share-btn:hover{background:rgba(0,225,255,.22);border-color:#7fe3f5;color:#fff;transform:translateY(-1px)}
.share-btn svg{width:16px;height:16px;flex:none}

/* 文章详情（白底容器内）：浅蓝主题，与正文视觉一致 */
.share-btn--article{background:rgba(0,180,216,.06);border-color:rgba(0,180,216,.22);color:var(--blue)}
.share-btn--article:hover{background:rgba(0,180,216,.12);border-color:#7fe3f5;color:var(--blue)}

/* 分享面板 */
.share-mask{position:fixed;inset:0;background:rgba(15,42,74,.55);backdrop-filter:blur(4px);
  z-index:1000;display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .18s;padding:20px}
.share-mask.is-open{opacity:1}

.share-panel{position:relative;background:#fff;border-radius:18px;
  box-shadow:0 30px 80px rgba(0,0,0,.3);width:380px;max-width:100%;padding:28px 26px 24px;
  transform:translateY(8px) scale(.98);transition:transform .22s cubic-bezier(.2,.8,.3,1.2)}
.share-mask.is-open .share-panel{transform:translateY(0) scale(1)}
.share-panel h3{margin:0 0 18px;font-size:17px;color:var(--navy);text-align:center;font-weight:600}
.share-close{position:absolute;top:12px;right:12px;width:34px;height:34px;border:none;background:transparent;
  color:#94a3b8;cursor:pointer;border-radius:8px;display:flex;align-items:center;justify-content:center;
  transition:.15s}
.share-close:hover{background:#f1f5f9;color:var(--navy)}
.share-close svg{width:18px;height:18px}

.share-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:4px}
.share-target{display:flex;flex-direction:column;align-items:center;gap:8px;padding:12px 4px 14px;
  background:transparent;border:1px solid transparent;border-radius:12px;cursor:pointer;
  font-family:inherit;color:var(--navy);transition:.2s}
.share-target:hover{background:#f1f9fb;border-color:rgba(0,180,216,.22)}
.share-target b{font-size:13px;font-weight:500}
.share-ico{width:40px;height:40px;display:flex;align-items:center;justify-content:center;
  border-radius:50%;background:#f6f8fb}
.share-ico svg{width:22px;height:22px}
/* 品牌色圆底 + 品牌首字（中文用汉字/英文用首字母，随语言切换） */
.share-ico i{font-style:normal;font-weight:700;font-size:17px;line-height:1;color:#fff}
.share-ico-wx{background:#07c160}
.share-ico-dt{background:#0089ff}
.share-ico-lark{background:#00c8b4;background:linear-gradient(135deg,#00d6b9,#3370ff)}
.share-ico-copy{background:#eef2f7;color:#64748b}

.share-qr{text-align:center;padding:12px 0 4px;animation:fadeUp .25s ease}
.share-qr img{width:200px;height:200px;border-radius:10px;border:1px solid var(--line);padding:6px;background:#fff;display:block;margin:0 auto}
.share-qr p{margin:14px 0 6px;font-size:14px;color:var(--navy);font-weight:600}
.share-qr small{display:block;font-size:11.5px;color:var(--muted);word-break:break-all;
  background:#f6f8fb;padding:8px 10px;border-radius:8px;max-height:60px;overflow:auto;
  text-align:left;font-family:monospace;line-height:1.5}

.share-tip{min-height:24px;text-align:center;font-size:13px;color:var(--blue);font-weight:500;margin-top:6px}

/* 系统分享入口（面板底部次要按钮，仅浏览器支持 navigator.share 时出现） */
.share-sys{display:block;width:100%;margin-top:4px;padding:11px;border:1px dashed var(--line);
  border-radius:10px;background:transparent;color:var(--muted);font-size:13px;font-family:inherit;
  cursor:pointer;transition:.2s}
.share-sys:hover{border-color:var(--cyan);color:var(--blue);background:rgba(0,180,216,.04)}

@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}

@media(max-width:640px){
  .share-panel{width:auto;padding:24px 22px 20px;border-radius:14px}
  .share-grid{gap:4px}
  .share-target{padding:10px 2px}
  .share-ico{width:36px;height:36px}
  .share-ico svg{width:20px;height:20px}
  .share-target b{font-size:11.5px}
  .share-qr img{width:180px;height:180px}
  .share-btn-host--article{justify-content:center}
}