/* ===================== 令牌 ===================== */
:root{
  --blue:#0F73EF;          /* 品牌主色 · 锁定 */
  --blue-d:#0A4FA8;
  --blue-dd:#083A7C;
  --blue-l:#E8F1FE;
  --blue-ll:#F3F8FF;
  --ink:#0C1B2E;
  --ink-2:#3A4A5F;
  --gray:#5F7086;
  --line:#E1E9F3;
  --bg:#F5F8FC;
  --amber:#FFB300;
  --white:#fff;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  --wrap:1220px;
  --r:4px;
  --sh:0 2px 16px rgba(12,27,46,.07);
  --sh-h:0 12px 36px rgba(15,115,239,.16);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--sans);color:var(--ink);background:var(--white);
  font-size:15px;line-height:1.75;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;outline:none;border:0;background:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}

/* ===================== 顶部信息条 ===================== */
.topbar{background:var(--ink);color:rgba(255,255,255,.75);font-size:13.5px;line-height:42px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px}
.topbar-tags{display:flex;gap:18px;white-space:nowrap;overflow:hidden}
.topbar-tags span::before{content:"";display:inline-block;width:4px;height:4px;background:var(--amber);border-radius:50%;vertical-align:2px;margin-right:7px}
.topbar-tel{color:#fff;font-weight:700;letter-spacing:.3px;white-space:nowrap}
.topbar-tel b{color:var(--amber);font-size:16.5px}

/* ===================== 头部 ===================== */
.hd{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:900}
.hd.small .hd-in{height:74px}
.hd-in{height:96px;display:flex;align-items:center;gap:12px;transition:height .25s}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand img{height:60px;width:auto}
.brand-txt strong{display:block;font-size:21px;font-weight:800;letter-spacing:.5px;line-height:1.25;white-space:nowrap}
.brand-txt span{display:block;font-size:11px;color:var(--gray);letter-spacing:1.4px;text-transform:uppercase;white-space:nowrap}

.nav{margin-left:auto;display:flex;align-items:center;height:100%}
.nav>li{position:relative;height:100%}
.nav>li>a{
  display:flex;align-items:center;height:100%;padding:0 13px;white-space:nowrap;
  font-size:16.5px;font-weight:600;color:var(--ink-2);position:relative;transition:color .2s;
}
.nav>li>a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:-1px;height:3px;
  background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .28s;
}
.nav>li>a:hover,.nav>li.on>a{color:var(--blue)}
.nav>li>a:hover::after,.nav>li.on>a::after{transform:scaleX(1)}

.hd-cta{
  flex-shrink:0;display:flex;align-items:center;gap:9px;white-space:nowrap;
  background:var(--blue);color:#fff;padding:12px 18px;border-radius:var(--r);
  font-weight:700;font-size:15px;letter-spacing:.2px;
  box-shadow:0 4px 14px rgba(15,115,239,.3);transition:.22s;
}
.hd-cta:hover{background:var(--blue-d);transform:translateY(-1px);box-shadow:0 7px 20px rgba(15,115,239,.36)}
.hd-cta small{display:block;font-size:11px;font-weight:400;opacity:.85;line-height:1.2}
.hd-cta b{font-size:17px;line-height:1.2;letter-spacing:.3px}
.burger{display:none;width:48px;height:48px;margin-left:auto;position:relative}
.burger i{position:absolute;left:12px;right:12px;height:2.5px;background:var(--ink);transition:.3s}
.burger i:nth-child(1){top:16px}.burger i:nth-child(2){top:23px}.burger i:nth-child(3){top:30px}
.burger.on i:nth-child(1){top:23px;transform:rotate(45deg)}
.burger.on i:nth-child(2){opacity:0}
.burger.on i:nth-child(3){top:23px;transform:rotate(-45deg)}


/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 32px;border-radius:var(--r);font-weight:700;font-size:15.5px;
  transition:.24s;cursor:pointer;white-space:nowrap;line-height:1.2;
}
.btn-amber{background:var(--amber);color:var(--ink);box-shadow:0 6px 20px rgba(255,179,0,.34)}
.btn-amber:hover{background:#FFC22E;transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,179,0,.42)}
.btn-ghost{border:2px solid rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--blue);border-color:#fff}
.btn-blue{background:var(--blue);color:#fff;box-shadow:0 6px 20px rgba(15,115,239,.3)}
.btn-blue:hover{background:var(--blue-d);transform:translateY(-2px)}
.btn-line{border:2px solid var(--blue);color:var(--blue)}
.btn-line:hover{background:var(--blue);color:#fff}

/* ===================== Banner（原图整图） ===================== */
.hero{position:relative;overflow:hidden;background:#0B5FD4}
.slides{position:relative;width:100%;padding-bottom:37.97%}  /* 5710:2168 原图比例 */
.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .7s ease}
.slide.on{opacity:1;visibility:visible}
.slide-link{display:block;width:100%;height:100%}
.slide img{width:100%;height:100%;object-fit:cover;object-position:center;image-rendering:auto;backface-visibility:hidden}

/* 视觉隐藏但可被搜索引擎与读屏软件抓取的文字 */
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

.hero-nav{
  position:absolute;bottom:22px;left:0;right:0;z-index:20;
  display:flex;justify-content:center;align-items:center;gap:16px;
}
.dots{display:flex;gap:9px}
.dots button{width:34px;height:4px;background:rgba(255,255,255,.45);cursor:pointer;transition:.3s;border-radius:2px}
.dots button.on{background:var(--amber);width:56px}
.arrow{
  position:relative;z-index:20;width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(255,255,255,.5);color:#fff;cursor:pointer;font-size:18px;
  transition:.24s;display:grid;place-items:center;
  background:rgba(6,40,95,.28);backdrop-filter:blur(4px);line-height:1;
}
.arrow:hover{background:var(--amber);border-color:var(--amber);color:var(--ink)}

/* ===================== 快捷入口条 ===================== */
.quick{background:var(--white);position:relative;z-index:30;margin-top:0}
.quick-in{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;box-shadow:0 8px 34px rgba(12,27,46,.13);overflow:hidden;
}
.quick-i{
  padding:26px 22px;display:flex;gap:15px;align-items:flex-start;
  border-right:1px solid var(--line);transition:.26s;position:relative;
}
.quick-i:last-child{border-right:0}
.quick-i::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--blue);transform:scaleX(0);transition:transform .3s}
.quick-i:hover{background:var(--blue-ll)}
.quick-i:hover::before{transform:scaleX(1)}
.quick-ico{width:42px;height:42px;flex-shrink:0;display:grid;place-items:center;background:var(--blue-l);border-radius:3px}
.quick-ico svg{width:23px;height:23px;fill:var(--blue)}
.quick-i strong{display:block;font-size:16px;font-weight:700;margin-bottom:3px}
.quick-i span{display:block;font-size:12.5px;color:var(--gray);line-height:1.6}

/* ===================== 通用区块 ===================== */
.sec{padding:82px 0}
.sec-gray{background:var(--bg)}
.sec-blue{background:linear-gradient(135deg,#0B5FD4,var(--blue) 50%,#3A8DF8);color:#fff}
.sec-hd{text-align:center;margin-bottom:48px}
.sec-hd .eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:4px;
  color:var(--blue);text-transform:uppercase;margin-bottom:10px;
}
.sec-blue .sec-hd .eyebrow{color:var(--amber)}
.sec-hd h2{font-size:36px;font-weight:800;letter-spacing:-.4px;line-height:1.3}
.sec-hd h2 em{font-style:normal;color:var(--blue)}
.sec-blue .sec-hd h2{color:#fff}
.sec-blue .sec-hd h2 em{color:var(--amber)}
.sec-hd .sub{margin-top:12px;color:var(--gray);font-size:15px;max-width:760px;margin-left:auto;margin-right:auto}
.sec-blue .sec-hd .sub{color:rgba(255,255,255,.78)}
.sec-hd .rule{width:48px;height:3px;background:var(--amber);margin:18px auto 0}

/* ===================== 关于 ===================== */
.about{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about-txt .eyebrow{font-size:12.5px;font-weight:700;letter-spacing:4px;color:var(--blue);margin-bottom:12px;display:block}
.about-txt h2{font-size:34px;font-weight:800;line-height:1.32;margin-bottom:20px}
.about-txt h2 em{font-style:normal;color:var(--blue)}
.about-txt p{color:var(--ink-2);margin-bottom:15px;font-size:15px;line-height:1.95}
.about-list{margin:22px 0 28px;display:grid;grid-template-columns:1fr 1fr;gap:11px}
.about-list li{font-size:14.5px;color:var(--ink-2);display:flex;gap:9px;align-items:flex-start}
.about-list li::before{
  content:"";width:16px;height:16px;flex-shrink:0;margin-top:5px;border-radius:2px;
  background:var(--blue-l) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%230F73EF'%3E%3Cpath d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/12px no-repeat;
}
.about-pics{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:auto auto;gap:14px}
.about-pics figure{overflow:hidden;position:relative;background:var(--bg)}
.about-pics figure:first-child{grid-column:1/3;aspect-ratio:16/8.4}
.about-pics figure:not(:first-child){aspect-ratio:4/3}
.about-pics img{width:100%;height:100%;object-fit:cover;transition:transform .7s}
.about-pics figure:hover img{transform:scale(1.06)}
.about-pics figcaption{
  position:absolute;left:0;bottom:0;right:0;padding:16px 14px 10px;
  background:linear-gradient(transparent,rgba(12,27,46,.82));
  color:#fff;font-size:13px;font-weight:600;
}

/* 数据条 */
.stats{border-top:1px solid var(--line);margin-top:62px;padding-top:44px;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;text-align:center}
.stats dt{font-size:40px;font-weight:800;color:var(--blue);line-height:1.1;letter-spacing:-1px}
.stats dt small{font-size:17px;font-weight:700;margin-left:2px}
.stats dd{font-size:13.5px;color:var(--gray);margin-top:6px}

/* ===================== 服务项目 ===================== */
.svc{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.svc-i{
  background:#fff;padding:30px 24px 26px;border:1px solid var(--line);
  transition:.3s;position:relative;overflow:hidden;
}
.svc-i::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:3px;
  background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .35s;
}
.svc-i:hover{border-color:transparent;box-shadow:var(--sh-h);transform:translateY(-4px)}
.svc-i:hover::after{transform:scaleX(1)}
.svc-num{
  position:absolute;right:16px;top:12px;font-size:44px;font-weight:800;
  color:var(--blue-ll);line-height:1;letter-spacing:-2px;
}
.svc-ico{width:50px;height:50px;display:grid;place-items:center;background:var(--blue-l);margin-bottom:16px;border-radius:3px;transition:.3s}
.svc-i:hover .svc-ico{background:var(--blue)}
.svc-ico svg{width:27px;height:27px;fill:var(--blue);transition:.3s}
.svc-i:hover .svc-ico svg{fill:#fff}
.svc-i h3{font-size:17.5px;font-weight:700;margin-bottom:9px;position:relative}
.svc-i p{font-size:13.5px;color:var(--gray);line-height:1.8;min-height:66px}
.svc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.svc-tags span{font-size:11.5px;color:var(--blue);background:var(--blue-ll);padding:3px 9px;border-radius:2px}

/* ===================== 解决方案 · 签名区 ===================== */
.sol-tabs{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-bottom:34px}
.sol-tab{
  padding:11px 26px;font-size:15px;font-weight:700;cursor:pointer;
  border:1px solid rgba(255,255,255,.26);color:rgba(255,255,255,.82);transition:.24s;border-radius:2px;
}
.sol-tab:hover{border-color:var(--amber);color:#fff}
.sol-tab.on{background:var(--amber);border-color:var(--amber);color:var(--ink)}
.sol-panel{display:none;grid-template-columns:1.42fr 1fr;gap:44px;align-items:center}
.sol-panel.on{display:grid;animation:fade .5s}
@keyframes fade{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.sol-fig{background:#fff;padding:16px;box-shadow:0 16px 44px rgba(0,0,0,.26);position:relative}
.sol-fig::before{
  content:"系统拓扑";position:absolute;left:16px;top:16px;z-index:2;
  background:var(--blue);color:#fff;font-size:11.5px;font-weight:700;
  padding:4px 11px;letter-spacing:1px;
}
.sol-fig img{width:100%}
.sol-txt h3{font-size:28px;font-weight:800;margin-bottom:14px;color:#fff;line-height:1.35}
.sol-txt>p{color:rgba(255,255,255,.8);font-size:14.5px;line-height:1.95;margin-bottom:20px}
.sol-ul{margin-bottom:26px}
.sol-ul li{
  color:rgba(255,255,255,.9);font-size:14px;padding:9px 0 9px 24px;position:relative;
  border-bottom:1px dashed rgba(255,255,255,.16);
}
.sol-ul li::before{
  content:"";position:absolute;left:0;top:17px;width:8px;height:8px;
  background:var(--amber);transform:rotate(45deg);
}
.sol-ul li b{color:#fff;font-weight:700}

/* ===================== 优势 ===================== */
.adv{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.adv-i{background:#fff;padding:32px 28px;border-left:3px solid var(--blue);box-shadow:var(--sh);transition:.3s}
.adv-i:hover{transform:translateY(-5px);box-shadow:var(--sh-h);border-left-color:var(--amber)}
.adv-i .n{font-size:12.5px;font-weight:800;color:var(--amber);letter-spacing:2px;margin-bottom:9px}
.adv-i h3{font-size:19px;font-weight:700;margin-bottom:11px}
.adv-i p{font-size:14px;color:var(--gray);line-height:1.85}

/* ===================== 展品展示 ===================== */
.prod{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.prod-i{
  background:#fff;border:1px solid var(--line);padding:24px 16px;text-align:center;transition:.28s;
}
.prod-i:hover{border-color:var(--blue);box-shadow:var(--sh-h);transform:translateY(-4px)}
.prod-i .pico{width:56px;height:56px;margin:0 auto 13px;display:grid;place-items:center;background:var(--blue-ll);border-radius:50%}
.prod-i .pico svg{width:28px;height:28px;fill:var(--blue)}
.prod-i strong{display:block;font-size:15px;font-weight:700;margin-bottom:5px}
.prod-i span{font-size:12px;color:var(--gray);line-height:1.65;display:block}

/* ===================== 案例 ===================== */
.case-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:32px}
.case-c{background:#fff;border:1px solid var(--line);padding:26px 24px;transition:.28s}
.case-c:hover{box-shadow:var(--sh-h);border-color:transparent;transform:translateY(-4px)}
.case-c h3{font-size:17px;font-weight:700;margin-bottom:12px;padding-bottom:12px;border-bottom:2px solid var(--blue-l);display:flex;align-items:center;gap:9px}
.case-c h3 i{width:6px;height:18px;background:var(--blue);display:block;flex-shrink:0}
.case-c ul{display:flex;flex-wrap:wrap;gap:7px}
.case-c li{font-size:12.5px;color:var(--ink-2);background:var(--bg);padding:5px 11px;border-radius:2px}
.case-note{text-align:center;color:var(--gray);font-size:13.5px}

/* ===================== 资质 ===================== */
.cert{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cert-i{background:#fff;border:1px solid var(--line);padding:22px 20px;display:flex;gap:14px;align-items:flex-start;transition:.26s}
.cert-i:hover{border-color:var(--blue);box-shadow:var(--sh)}
.cert-i .cico{width:38px;height:38px;flex-shrink:0;display:grid;place-items:center;background:var(--amber);border-radius:2px}
.cert-i .cico svg{width:21px;height:21px;fill:var(--ink)}
.cert-i strong{display:block;font-size:14.5px;font-weight:700;line-height:1.5;margin-bottom:4px}
.cert-i span{font-size:12px;color:var(--gray);line-height:1.6}

/* ===================== 流程 ===================== */
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:0;counter-reset:s}
.flow-i{text-align:center;position:relative;padding:0 8px}
.flow-i::after{
  content:"";position:absolute;right:-10px;top:26px;width:20px;height:2px;background:var(--line);
}
.flow-i:last-child::after{display:none}
.flow-n{
  width:54px;height:54px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;
  background:#fff;border:2px solid var(--blue);color:var(--blue);
  font-size:18px;font-weight:800;transition:.3s;position:relative;z-index:2;
}
.flow-i:hover .flow-n{background:var(--blue);color:#fff;transform:scale(1.09)}
.flow-i strong{display:block;font-size:15px;font-weight:700;margin-bottom:5px}
.flow-i span{font-size:12.5px;color:var(--gray);line-height:1.6;display:block}

/* ===================== 新闻 ===================== */
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-i{background:#fff;border:1px solid var(--line);padding:26px 24px;transition:.28s;display:block}
.news-i:hover{box-shadow:var(--sh-h);border-color:transparent;transform:translateY(-4px)}
.news-date{font-size:12.5px;color:var(--blue);font-weight:700;letter-spacing:1px;margin-bottom:11px}
.news-i h3{font-size:16.5px;font-weight:700;line-height:1.55;margin-bottom:10px;transition:color .2s}
.news-i:hover h3{color:var(--blue)}
.news-i p{font-size:13.5px;color:var(--gray);line-height:1.8;margin-bottom:14px}
.news-more{font-size:13px;color:var(--blue);font-weight:600}

/* ===================== 转化区 ===================== */
.cv{
  background:linear-gradient(120deg,#0B5FD4,var(--blue) 52%,#3A8DF8);
  position:relative;overflow:hidden;
}
.cv::before{
  content:"";position:absolute;right:-8%;top:0;bottom:0;width:46%;
  background:rgba(255,255,255,.045);clip-path:polygon(26% 0,100% 0,100% 100%,0 100%);
}
.cv-in{position:relative;z-index:2;display:grid;grid-template-columns:1fr 452px;gap:56px;align-items:center;padding:66px 0}
.cv-l .eyebrow{color:var(--amber);font-size:12.5px;font-weight:700;letter-spacing:4px;display:block;margin-bottom:12px}
.cv-l h2{font-size:35px;font-weight:800;color:#fff;line-height:1.32;margin-bottom:16px}
.cv-l h2 em{font-style:normal;color:var(--amber)}
.cv-l p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.9;margin-bottom:24px;max-width:520px}
.cv-pts{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:520px}
.cv-pts li{color:#fff;font-size:14px;display:flex;gap:9px;align-items:center}
.cv-pts li svg{width:17px;height:17px;fill:var(--amber);flex-shrink:0}
.cv-tel{margin-top:28px;display:inline-flex;align-items:center;gap:13px;color:#fff}
.cv-tel .tico{width:50px;height:50px;background:var(--amber);border-radius:50%;display:grid;place-items:center;flex-shrink:0}
.cv-tel .tico svg{width:24px;height:24px;fill:var(--ink)}
.cv-tel small{display:block;font-size:12.5px;opacity:.8}
.cv-tel b{display:block;font-size:29px;font-weight:800;letter-spacing:.6px;line-height:1.15}

/* 表单 */
.form-card{background:#fff;padding:32px 30px;box-shadow:0 20px 50px rgba(0,0,0,.24)}
.form-card h3{font-size:21px;font-weight:800;margin-bottom:5px}
.form-card .fsub{font-size:13px;color:var(--gray);margin-bottom:20px;line-height:1.7}
.fld{margin-bottom:13px}
.fld label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--ink-2)}
.fld label i{color:#E02B2B;font-style:normal}
.fld input,.fld select,.fld textarea{
  width:100%;border:1px solid var(--line);background:var(--bg);
  padding:11px 13px;font-size:14px;border-radius:2px;transition:.2s;
}
.fld input:focus,.fld select:focus,.fld textarea:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(15,115,239,.1)}
.fld textarea{resize:vertical;min-height:70px}
.fld select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%235F7086'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 9px center;background-size:19px}
.fld-2{display:grid;grid-template-columns:1fr 1fr;gap:11px}
.form-submit{width:100%;background:var(--blue);color:#fff;padding:14px;font-size:16px;font-weight:700;cursor:pointer;border-radius:var(--r);transition:.24s;margin-top:5px}
.form-submit:hover{background:var(--blue-d);box-shadow:0 8px 22px rgba(15,115,239,.3)}
.form-tip{font-size:12px;color:var(--gray);text-align:center;margin-top:11px;line-height:1.65}
.form-ok{display:none;text-align:center;padding:34px 10px}
.form-ok.on{display:block}
.form-ok svg{width:56px;height:56px;fill:#12A150;margin:0 auto 14px}
.form-ok strong{display:block;font-size:19px;font-weight:800;margin-bottom:8px}
.form-ok p{font-size:14px;color:var(--gray);line-height:1.8}

/* ===================== 页脚 ===================== */
.ft{background:var(--ink);color:rgba(255,255,255,.62);padding:56px 0 0;font-size:13.5px}
.ft-in{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:40px;padding-bottom:40px}
.ft h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px;position:relative;padding-bottom:11px}
.ft h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:2px;background:var(--amber)}
.ft-brand img{height:62px;width:auto;margin-bottom:16px;opacity:.98}
.ft-brand p{line-height:1.95;font-size:13px}
.ft ul li{margin-bottom:9px}
.ft ul a{transition:.2s}
.ft ul a:hover{color:var(--amber);padding-left:4px}
.ft-ct li{display:flex;gap:10px;align-items:flex-start;margin-bottom:13px;line-height:1.7}
.ft-ct svg{width:17px;height:17px;fill:var(--amber);flex-shrink:0;margin-top:4px}
.ft-ct .big{color:var(--amber);font-size:23px;font-weight:800;letter-spacing:.5px;line-height:1.3}
.ft-bt{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:12.5px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.ft-bt a:hover{color:var(--amber)}
.ft-kw{border-top:1px solid rgba(255,255,255,.07);padding:16px 0 20px;font-size:12px;color:rgba(255,255,255,.36);line-height:2}

/* ===================== 悬浮/固定转化件 ===================== */
.side{position:fixed;right:14px;bottom:100px;z-index:800;display:flex;flex-direction:column;gap:2px}
.side a,.side button{
  width:58px;height:58px;background:var(--blue);color:#fff;display:grid;place-items:center;
  cursor:pointer;transition:.24s;position:relative;
}
.side a:hover,.side button:hover{background:var(--amber);color:var(--ink)}
.side svg{width:22px;height:22px;fill:currentColor}
.side span{font-size:10.5px;margin-top:2px;display:block;line-height:1}
.side .lbl{
  position:absolute;right:64px;top:50%;transform:translateY(-50%) translateX(8px);
  background:var(--ink);color:#fff;padding:9px 15px;white-space:nowrap;font-size:14px;font-weight:700;
  opacity:0;pointer-events:none;transition:.24s;border-radius:2px;
}
.side a:hover .lbl,.side button:hover .lbl{opacity:1;transform:translateY(-50%) translateX(0)}
.side .top{background:var(--ink-2)}

.mbar{display:none}

/* ===================== 滚动动画 ===================== */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .rv{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ===================== 响应式 ===================== */
@media(max-width:1180px){
  .nav>li>a{padding:0 10px;font-size:15px}
  .hd-cta{padding:9px 15px}
  .hd-cta b{font-size:15px}
}
@media(max-width:1240px){
  .nav>li>a{padding:0 9px;font-size:15px}
  .brand-txt strong{font-size:18px}
  .brand img{height:50px}
  .hd-cta{padding:9px 13px}
  .hd-cta b{font-size:15px}
  .hd-cta small{display:none}
}
@media(max-width:1000px){
  .burger{display:block}
  .nav{
    position:fixed;left:0;right:0;top:68px;background:#fff;flex-direction:column;
    height:auto;max-height:0;overflow:hidden;transition:max-height .34s ease;
    box-shadow:0 14px 30px rgba(0,0,0,.14);border-top:1px solid var(--line);margin:0;
  }
  .nav.open{max-height:760px}
  .nav>li{width:100%;height:auto;border-bottom:1px solid var(--line)}
  .nav>li>a{height:54px;padding:0 22px;font-size:16.5px}
  .nav>li>a::after{display:none}
  .nav>li.on>a{background:var(--blue-ll)}
  .hd-in{height:68px}
  .hd.small .hd-in{height:68px}
  .anchors{top:68px}
  .sub{
    position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    box-shadow:none;border-top:0;background:var(--bg);padding:0;min-width:0;
    max-height:0;overflow:hidden;transition:max-height .3s;
  }
  .nav>li.open-sub .sub{max-height:520px}
  .sub li a{padding:11px 34px;font-size:14px;border-top:1px solid var(--line)}
  .nav>li>a.has-sub::before{right:22px;width:7px;height:7px}
  .nav>li.open-sub>a.has-sub::before{transform:translateY(-50%) rotate(225deg)}
}
@media(max-width:1080px){
  .hd-cta{display:none}
  .nav{margin-left:auto}
  .nav>li>a{padding:0 11px;font-size:15.5px}
}
@media(max-width:1000px){
  .svc{grid-template-columns:repeat(2,1fr)}
  .prod{grid-template-columns:repeat(3,1fr)}
  .adv,.news,.case-cats{grid-template-columns:1fr 1fr}
  .cert{grid-template-columns:1fr 1fr}
  .quick-in{grid-template-columns:1fr 1fr}
  .quick-i:nth-child(2){border-right:0}
  .quick-i:nth-child(1),.quick-i:nth-child(2){border-bottom:1px solid var(--line)}
  .about,.sol-panel.on,.cv-in{grid-template-columns:1fr;gap:36px}
  .stats{grid-template-columns:repeat(3,1fr);gap:26px}
  .flow{grid-template-columns:repeat(3,1fr);row-gap:30px}
  .flow-i:nth-child(3)::after{display:none}
  .ft-in{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:768px){
  body{font-size:14.5px}
  .topbar-tags{display:none}
  .topbar .wrap{justify-content:center}
  .hd-in{height:68px}
  .hd.small .hd-in{height:68px}
  .brand img{height:46px}
  .brand-txt strong{font-size:17px}
  .brand-txt span{font-size:9.5px;letter-spacing:1px}
  .hd-cta{display:none}
  .burger{display:block}
  .nav{
    position:absolute;left:0;right:0;top:68px;background:#fff;flex-direction:column;
    height:auto;max-height:0;overflow:hidden;transition:max-height .34s ease;
    box-shadow:0 14px 30px rgba(0,0,0,.14);border-top:1px solid var(--line);margin:0;
  }
  .nav.open{max-height:640px}
  .nav>li{width:100%;height:auto;border-bottom:1px solid var(--line)}
  .nav>li>a{height:54px;padding:0 22px;font-size:16.5px}
  .nav>li>a::after{display:none}
  .nav>li.on>a{background:var(--blue-ll)}

  .slides{padding-bottom:68%}
  .slide img{object-fit:cover;object-position:left center}
  .btn{padding:12px 20px;font-size:14.5px;flex:1;min-width:132px}
  .arrow{display:none}
  .hero-nav{bottom:14px}
  .hero-nav{bottom:20px}

  .quick{margin-top:0}
  .quick-in{grid-template-columns:1fr;box-shadow:none;border-top:1px solid var(--line)}
  .quick-i{border-right:0;border-bottom:1px solid var(--line);padding:18px 20px}

  .sec{padding:48px 0}
  .sec-hd{margin-bottom:30px}
  .sec-hd h2{font-size:25px}
  .sec-hd .sub{font-size:13.5px}
  .about-txt h2{font-size:25px}
  .about-list{grid-template-columns:1fr}
  .about-pics{gap:9px}
  .stats{grid-template-columns:repeat(2,1fr);margin-top:38px;padding-top:30px;gap:22px}
  .stats dt{font-size:31px}
  .stats dd{font-size:12.5px}
  .svc,.prod,.adv,.news,.case-cats,.cert{grid-template-columns:1fr;gap:13px}
  .svc-i p{min-height:auto}
  .sol-tabs{gap:6px;margin-bottom:22px}
  .sol-tab{padding:9px 15px;font-size:13px}
  .sol-txt h3{font-size:22px}
  .flow{grid-template-columns:repeat(2,1fr);row-gap:26px}
  .flow-i::after{display:none}
  .cv-in{padding:44px 0;gap:30px}
  .cv-l h2{font-size:25px}
  .cv-pts{grid-template-columns:1fr}
  .cv-tel b{font-size:25px}
  .form-card{padding:24px 20px}
  .ft{padding-top:40px}
  .ft-in{grid-template-columns:1fr;gap:28px;padding-bottom:28px}
  .ft-bt{flex-direction:column;text-align:center;gap:7px}

  .side{display:none}
  /* 移动端底部固定转化条 —— 手机端最重要的转化入口 */
  .mbar{
    display:grid;grid-template-columns:1fr 1fr 1.3fr;
    position:fixed;left:0;right:0;bottom:0;z-index:850;
    background:#fff;box-shadow:0 -3px 16px rgba(12,27,46,.16);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mbar a{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    height:56px;font-size:11.5px;font-weight:600;color:var(--ink-2);border-right:1px solid var(--line);
  }
  .mbar a svg{width:20px;height:20px;fill:var(--blue)}
  .mbar a.main{background:var(--blue);color:#fff;border-right:0;font-size:15px;font-weight:700;flex-direction:row;gap:7px}
  .mbar a.main svg{fill:#fff;width:19px;height:19px}
  body{padding-bottom:56px}
}
@media(max-width:400px){
  .btn{min-width:118px;padding:11px 14px;font-size:13.5px}
}
/* ============================================================
   下拉菜单
   ============================================================ */
.nav>li>a.has-sub::before{
  content:"";position:absolute;right:1px;top:50%;margin-top:-1px;
  width:5px;height:5px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:translateY(-50%) rotate(45deg);opacity:.5;transition:.25s;
}
.nav>li:hover>a.has-sub::before{opacity:1;transform:translateY(-50%) rotate(225deg)}
.sub{
  position:absolute;left:50%;top:100%;transform:translateX(-50%) translateY(10px);
  min-width:212px;background:#fff;box-shadow:0 14px 38px rgba(12,27,46,.16);
  border-top:3px solid var(--blue);padding:8px 0;
  opacity:0;visibility:hidden;pointer-events:none;transition:.26s;z-index:60;
}
.nav>li:hover .sub{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.sub li a{
  display:block;padding:11px 24px;font-size:15px;color:var(--ink-2);
  white-space:nowrap;transition:.2s;position:relative;
}
.sub li a::before{
  content:"";position:absolute;left:11px;top:50%;width:4px;height:4px;margin-top:-2px;
  background:var(--blue);border-radius:50%;opacity:0;transition:.2s;
}
.sub li a:hover{background:var(--blue-ll);color:var(--blue);padding-left:28px}
.sub li a:hover::before{opacity:1}

/* ============================================================
   二级页 · 页头横幅 + 面包屑
   ============================================================ */
.phead{
  position:relative;background:linear-gradient(118deg,#0B5FD4 0%,var(--blue) 48%,#3A8DF8 100%);
  overflow:hidden;padding:72px 0 66px;
}
.phead::after{
  content:"";position:absolute;right:-6%;top:0;bottom:0;width:50%;
  background:rgba(255,255,255,.10);clip-path:polygon(24% 0,100% 0,100% 100%,0 100%);
}
.phead-bg{position:absolute;inset:0;z-index:0}
.phead-bg img{width:100%;height:100%;object-fit:cover;opacity:.16}
.phead-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,115,239,.86) 0%,rgba(15,115,239,.52) 55%,rgba(58,141,248,.24) 100%)}
.phead .wrap{position:relative;z-index:3}
.phead .eyebrow{
  display:inline-flex;align-items:center;gap:9px;color:var(--amber);
  font-size:12.5px;font-weight:700;letter-spacing:3px;margin-bottom:13px;
}
.phead .eyebrow::before{content:"";width:28px;height:2px;background:var(--amber)}
.phead h1{font-size:40px;font-weight:800;color:#fff;letter-spacing:-.5px;line-height:1.25;margin-bottom:12px}
.phead p{color:rgba(255,255,255,.82);font-size:15.5px;max-width:700px;line-height:1.85}
.crumb{background:var(--bg);border-bottom:1px solid var(--line);font-size:13px;color:var(--gray)}
.crumb .wrap{display:flex;align-items:center;gap:8px;height:48px;flex-wrap:wrap}
.crumb svg{width:14px;height:14px;fill:var(--gray);flex-shrink:0}
.crumb a{transition:.2s}
.crumb a:hover{color:var(--blue)}
.crumb i{font-style:normal;opacity:.45}
.crumb b{color:var(--ink);font-weight:600}

/* 页内锚点导航 */
.anchors{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:96px;z-index:80}
.hd.small ~ main .anchors{top:74px}
.anchors .wrap{display:flex;gap:4px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.anchors .wrap::-webkit-scrollbar{display:none}
.anchors a{
  padding:15px 18px;font-size:14.5px;font-weight:600;color:var(--ink-2);
  white-space:nowrap;border-bottom:3px solid transparent;transition:.22s;
}
.anchors a:hover,.anchors a.on{color:var(--blue);border-bottom-color:var(--blue)}

/* ============================================================
   二级页 · 通用内容块
   ============================================================ */
.block{padding:70px 0}
.block+.block{padding-top:0}
.block-hd{margin-bottom:32px;padding-bottom:16px;border-bottom:1px solid var(--line);display:flex;align-items:flex-end;gap:14px;flex-wrap:wrap}
.block-hd h2{font-size:29px;font-weight:800;letter-spacing:-.3px;display:flex;align-items:center;gap:12px}
.block-hd h2 i{width:6px;height:26px;background:var(--blue);display:block;flex-shrink:0}
.block-hd .en{font-size:12.5px;font-weight:700;letter-spacing:3px;color:var(--line);text-transform:uppercase;margin-left:auto}
.prose p{color:var(--ink-2);font-size:15px;line-height:2;margin-bottom:15px}
.prose p b{color:var(--ink);font-weight:700}
.prose h3{font-size:19px;font-weight:700;margin:26px 0 12px;display:flex;align-items:center;gap:10px}
.prose h3::before{content:"";width:4px;height:18px;background:var(--amber);flex-shrink:0}

/* 资质证书画廊 */
.certs-g{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cert-card{background:#fff;border:1px solid var(--line);padding:16px;transition:.3s;text-align:center}
.cert-card:hover{box-shadow:var(--sh-h);border-color:transparent;transform:translateY(-4px)}
.cert-card .ph{background:var(--bg);overflow:hidden;margin-bottom:14px;display:grid;place-items:center;min-height:230px}
.cert-card .ph img{max-height:330px;width:auto;object-fit:contain;transition:transform .5s}
.cert-card:hover .ph img{transform:scale(1.04)}
.cert-card strong{display:block;font-size:15.5px;font-weight:700;margin-bottom:6px}
.cert-card span{display:block;font-size:12.5px;color:var(--gray);line-height:1.7}

/* 信息表 */
.itab{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);font-size:14.5px}
.itab th,.itab td{padding:14px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.itab tr:last-child th,.itab tr:last-child td{border-bottom:0}
.itab th{background:var(--blue-ll);font-weight:700;width:190px;color:var(--ink);white-space:nowrap}
.itab td{color:var(--ink-2);line-height:1.8}

/* 图文交错 */
.zig{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center;margin-bottom:56px}
.zig:last-child{margin-bottom:0}
.zig.rev .zig-fig{order:2}
.zig-fig{background:#fff;border:1px solid var(--line);padding:14px}
.zig-fig img{width:100%}
.zig-fig figcaption{font-size:12.5px;color:var(--gray);text-align:center;padding-top:10px}
.zig-txt h3{font-size:25px;font-weight:800;margin-bottom:14px;line-height:1.35}
.zig-txt>p{color:var(--ink-2);line-height:1.95;margin-bottom:16px;font-size:15px}
.klist li{
  font-size:14.5px;color:var(--ink-2);padding:10px 0 10px 25px;position:relative;
  border-bottom:1px dashed var(--line);line-height:1.75;
}
.klist li:last-child{border-bottom:0}
.klist li::before{content:"";position:absolute;left:0;top:18px;width:8px;height:8px;background:var(--amber);transform:rotate(45deg)}
.klist li b{color:var(--ink);font-weight:700}

/* 团队/文化卡 */
.cul{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cul-i{background:#fff;border:1px solid var(--line);padding:28px 24px;transition:.3s;position:relative;overflow:hidden}
.cul-i:hover{box-shadow:var(--sh-h);border-color:transparent;transform:translateY(-4px)}
.cul-i .cn{font-size:38px;font-weight:800;color:var(--blue-ll);line-height:1;position:absolute;right:18px;top:14px}
.cul-i h3{font-size:19px;font-weight:700;margin-bottom:10px;position:relative;color:var(--blue)}
.cul-i p{font-size:13.5px;color:var(--gray);line-height:1.85}

/* 组织架构 */
.org{background:#fff;border:1px solid var(--line);padding:36px 26px;text-align:center}
.org-top{display:inline-block;background:var(--blue);color:#fff;padding:12px 34px;font-weight:700;font-size:16px;border-radius:3px}
.org-line{width:2px;height:26px;background:var(--line);margin:0 auto}
.org-2{display:inline-block;background:var(--blue-d);color:#fff;padding:10px 30px;font-weight:700;font-size:15px;border-radius:3px}
.org-row{display:grid;grid-template-columns:repeat(7,1fr);gap:10px;margin-top:6px}
.org-dept{background:var(--blue-l);border:1px solid #C9DEFB;padding:13px 6px;font-weight:700;font-size:14.5px;color:var(--blue-d);border-radius:3px}
.org-sub{margin-top:8px;display:flex;flex-direction:column;gap:5px}
.org-sub span{font-size:12px;color:var(--gray);background:var(--bg);padding:6px 4px;border-radius:2px;display:block}

/* 产品分类网格 */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pcard{background:#fff;border:1px solid var(--line);overflow:hidden;transition:.3s}
.pcard:hover{box-shadow:var(--sh-h);border-color:transparent;transform:translateY(-5px)}
.pcard-h{background:linear-gradient(135deg,var(--blue-d),var(--blue));padding:22px 24px;color:#fff;display:flex;align-items:center;gap:13px}
.pcard-h svg{width:28px;height:28px;fill:var(--amber);flex-shrink:0}
.pcard-h strong{font-size:18px;font-weight:700}
.pcard-b{padding:22px 24px}
.pcard-b p{font-size:13.5px;color:var(--gray);line-height:1.85;margin-bottom:14px}
.pcard-b ul{display:flex;flex-wrap:wrap;gap:7px}
.pcard-b li{font-size:12.5px;color:var(--ink-2);background:var(--bg);padding:5px 11px;border-radius:2px}

/* 新闻列表 */
.nlist{display:flex;flex-direction:column;gap:18px}
.nrow{
  display:grid;grid-template-columns:112px 1fr;gap:26px;background:#fff;
  border:1px solid var(--line);padding:26px 28px;transition:.3s;align-items:flex-start;
}
.nrow:hover{box-shadow:var(--sh-h);border-color:transparent;transform:translateX(4px)}
.nrow-d{text-align:center;border-right:1px solid var(--line);padding-right:20px}
.nrow-d b{display:block;font-size:34px;font-weight:800;color:var(--blue);line-height:1}
.nrow-d span{display:block;font-size:12.5px;color:var(--gray);margin-top:5px}
.nrow-c h3{font-size:19px;font-weight:700;margin-bottom:10px;transition:color .2s;line-height:1.5}
.nrow:hover .nrow-c h3{color:var(--blue)}
.nrow-c p{font-size:14px;color:var(--gray);line-height:1.85;margin-bottom:11px}
.ntag{font-size:11.5px;color:var(--blue);background:var(--blue-ll);padding:3px 10px;border-radius:2px;margin-right:7px}

/* 联系页 */
.ct-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.ct-box{background:#fff;border:1px solid var(--line);padding:32px 30px}
.ct-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line)}
.ct-item:last-child{border-bottom:0}
.ct-ico{width:44px;height:44px;flex-shrink:0;background:var(--blue-l);display:grid;place-items:center;border-radius:3px}
.ct-ico svg{width:22px;height:22px;fill:var(--blue)}
.ct-item strong{display:block;font-size:13px;color:var(--gray);font-weight:600;margin-bottom:4px}
.ct-item span{display:block;font-size:16px;font-weight:700;line-height:1.6}
.ct-item span.tel{font-size:26px;color:var(--blue);letter-spacing:.5px}
.ct-item span small{display:block;font-size:13px;font-weight:400;color:var(--gray);margin-top:3px}

/* CTA 长条 */
.strip{background:linear-gradient(120deg,#0B5FD4,var(--blue) 52%,#3A8DF8);padding:44px 0;position:relative;overflow:hidden}
.strip::before{content:"";position:absolute;right:-8%;top:0;bottom:0;width:44%;background:rgba(255,255,255,.05);clip-path:polygon(26% 0,100% 0,100% 100%,0 100%)}
.strip .wrap{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.strip h3{font-size:25px;font-weight:800;color:#fff;line-height:1.4}
.strip h3 em{font-style:normal;color:var(--amber)}
.strip p{color:rgba(255,255,255,.78);font-size:14.5px;margin-top:7px}
.strip-btns{display:flex;gap:13px;flex-wrap:wrap}

/* 响应式补充 */
@media(max-width:1000px){
  .certs-g,.cul,.pgrid{grid-template-columns:1fr 1fr}
  .zig,.ct-grid{grid-template-columns:1fr;gap:28px}
  .zig.rev .zig-fig{order:0}
  .org-row{grid-template-columns:repeat(4,1fr);row-gap:12px}
  .anchors{top:74px}
}
@media(max-width:768px){
  .sub{
    position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    box-shadow:none;border-top:0;background:var(--bg);padding:0;min-width:0;
    max-height:0;overflow:hidden;transition:max-height .3s;
  }
  .nav>li.open-sub .sub{max-height:520px ;         transform: matrix(1, 0, 0, 1, 0, 0);}
  .sub li a{padding:11px 34px;font-size:14px;border-top:1px solid var(--line)}
  .sub li a:hover{padding-left:38px}
  .nav>li>a.has-sub::before{right:22px;width:7px;height:7px}
  .nav>li.open-sub>a.has-sub::before{transform:translateY(-50%) rotate(225deg)}
  .phead{padding:40px 0 36px}
  .phead h1{font-size:26px}
  .phead p{font-size:14px}
  .crumb .wrap{height:auto;padding-top:11px;padding-bottom:11px;font-size:12.5px}
  .anchors{top:68px}
  .anchors a{padding:12px 14px;font-size:13.5px}
  .block{padding:42px 0}
  .block-hd h2{font-size:22px}
  .block-hd .en{display:none}
  .certs-g,.cul,.pgrid{grid-template-columns:1fr}
  .cert-card .ph{min-height:auto}
  .cert-card .ph img{max-height:280px}
  .zig-txt h3{font-size:21px}
  .org{padding:24px 14px}
  .org-row{grid-template-columns:repeat(2,1fr)}
  .itab th{width:112px;padding:11px 12px;font-size:13px}
  .itab td{padding:11px 12px;font-size:13.5px}
  .nrow{grid-template-columns:1fr;gap:14px;padding:20px}
  .nrow-d{display:flex;align-items:baseline;gap:9px;text-align:left;border-right:0;border-bottom:1px solid var(--line);padding:0 0 12px}
  .nrow-d b{font-size:26px}
  .nrow-c h3{font-size:17px}
  .strip{padding:32px 0}
  .strip h3{font-size:20px}
  .strip .wrap{flex-direction:column;align-items:flex-start}
  .ct-item span.tel{font-size:22px}
}

/* 证书卡片 figure 结构兼容 */
.cert-card figcaption{margin:0;padding:0;text-align:center}
.cert-card figcaption strong{display:block;font-size:15.5px;font-weight:700;margin-bottom:6px}
.cert-card figcaption span{display:block;font-size:12.5px;color:var(--gray);line-height:1.7}

/* ============================================================
   产品展示 · 首页产品带
   ============================================================ */
.phome{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.phome-i{display:block;transition:.3s}
.phome-i .pic{
  background:#fff;border:1px solid var(--line);border-radius:10px;
  aspect-ratio:1/1;display:grid;place-items:center;padding:14px;overflow:hidden;transition:.3s;
}
.phome-i .pic img{width:100%;height:100%;object-fit:contain;transition:transform .45s}
.phome-i:hover .pic{border-color:var(--blue);box-shadow:0 14px 34px rgba(15,115,239,.16);transform:translateY(-5px)}
.phome-i:hover .pic img{transform:scale(1.06)}
.phome-i h3{
  font-size:15.5px;font-weight:700;text-align:center;margin:16px 0 7px;
  line-height:1.55;transition:color .2s;
}
.phome-i:hover h3{color:var(--blue)}
.phome-i .spec{
  display:block;text-align:center;font-size:13px;font-weight:700;color:var(--amber);letter-spacing:.2px;
}
.phome-i .spec b{color:var(--gray);font-weight:400;margin:0 5px}

/* ============================================================
   产品分类块（分类头 + 参数表 + 卡片网格）
   ============================================================ */
.pcat{margin-bottom:56px}
.pcat:last-child{margin-bottom:0}
.pcat-hd{border-top:3px solid var(--blue);padding-top:22px;margin-bottom:18px}
.pcat-hd .rule{width:44px;height:4px;background:var(--amber);margin-bottom:14px}
.pcat-hd h2{font-size:27px;font-weight:800;display:inline;letter-spacing:-.3px}
.pcat-hd .alias{font-size:14px;color:var(--gray);margin-left:12px;font-weight:400}
.pcat-hd p{color:var(--ink-2);font-size:14.5px;line-height:1.9;margin-top:12px;max-width:900px}
.pcat-tab{width:100%;border-collapse:collapse;border:1px solid var(--line);font-size:14px;margin-bottom:22px;background:#fff}
.pcat-tab th,.pcat-tab td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left}
.pcat-tab tr:last-child th,.pcat-tab tr:last-child td{border-bottom:0}
.pcat-tab th{background:var(--bg);font-weight:700;width:150px;white-space:nowrap;color:var(--ink)}
.pcat-tab td{color:var(--ink-2);line-height:1.75}

.pgrid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pitem{
  background:#fff;border:1px solid var(--line);overflow:hidden;transition:.3s;display:flex;flex-direction:column;
}
.pitem:hover{border-color:transparent;box-shadow:var(--sh-h);transform:translateY(-5px)}
.pitem .ph{aspect-ratio:4/3;background:var(--bg);display:grid;place-items:center;padding:12px;overflow:hidden;position:relative}
.pitem .ph img{width:100%;height:100%;object-fit:contain;transition:transform .45s}
.pitem:hover .ph img{transform:scale(1.07)}
.pitem .ph .tag{
  position:absolute;left:0;top:12px;background:var(--blue);color:#fff;
  font-size:11px;font-weight:700;padding:4px 10px;letter-spacing:.3px;
}
.pitem .bd{padding:16px 16px 14px;flex:1;display:flex;flex-direction:column}
.pitem h3{font-size:15.5px;font-weight:700;line-height:1.5;margin-bottom:8px;transition:color .2s}
.pitem:hover h3{color:var(--blue)}
.pitem .key{font-size:12.5px;color:var(--amber);font-weight:700;margin-bottom:7px}
.pitem .desc{font-size:12.5px;color:var(--gray);line-height:1.75;flex:1}
.pitem .more{
  margin-top:12px;padding-top:11px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--blue);font-weight:600;display:flex;justify-content:space-between;align-items:center;
}
.pitem .more span:last-child{transition:transform .25s}
.pitem:hover .more span:last-child{transform:translateX(4px)}
.pitem.plain .ph{background:linear-gradient(135deg,var(--blue-ll),#fff);place-items:center}
.pitem.plain .ph em{font-style:normal;font-size:13px;color:var(--blue);font-weight:700;text-align:center;line-height:1.7;padding:0 12px}

/* ============================================================
   产品详情页（三级页）
   ============================================================ */
.pd{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:flex-start}
.pd-gal .main{
  background:#fff;border:1px solid var(--line);aspect-ratio:1/1;
  display:grid;place-items:center;padding:28px;overflow:hidden;
}
.pd-gal .main img{width:100%;height:100%;object-fit:contain}
.pd-info h1{font-size:29px;font-weight:800;line-height:1.4;margin-bottom:14px;letter-spacing:-.3px}
.pd-model{
  display:inline-block;background:var(--blue-ll);color:var(--blue);
  font-size:13px;font-weight:700;padding:5px 13px;border-radius:2px;margin-bottom:16px;
}
.pd-hl{background:var(--bg);border-left:3px solid var(--amber);padding:16px 20px;margin-bottom:22px}
.pd-hl li{font-size:14px;color:var(--ink-2);padding:5px 0 5px 20px;position:relative;line-height:1.7}
.pd-hl li::before{content:"";position:absolute;left:0;top:14px;width:7px;height:7px;background:var(--amber);transform:rotate(45deg)}
.pd-kv{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin-bottom:24px}
.pd-kv div{background:#fff;border:1px solid var(--line);padding:13px 15px}
.pd-kv strong{display:block;font-size:12px;color:var(--gray);font-weight:600;margin-bottom:4px}
.pd-kv span{display:block;font-size:15px;font-weight:700;color:var(--ink);line-height:1.4}
.pd-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.pd-note{font-size:12.5px;color:var(--gray);line-height:1.8;background:var(--blue-ll);padding:12px 16px;border-radius:2px}

.ptab{border-bottom:2px solid var(--line);display:flex;gap:0;margin-bottom:26px;overflow-x:auto;scrollbar-width:none}
.ptab::-webkit-scrollbar{display:none}
.ptab button{
  padding:14px 26px;font-size:16px;font-weight:700;color:var(--gray);
  cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-2px;white-space:nowrap;transition:.2s;
}
.ptab button:hover{color:var(--ink)}
.ptab button.on{color:var(--ink);border-bottom-color:var(--blue)}
.ppanel{display:none}
.ppanel.on{display:block;animation:fade .4s}
.ppanel .prose li{
  font-size:14.5px;color:var(--ink-2);line-height:1.9;padding:8px 0 8px 22px;position:relative;
  border-bottom:1px dashed var(--line);
}
.ppanel .prose li:last-child{border-bottom:0}
.ppanel .prose li::before{content:"";position:absolute;left:0;top:17px;width:7px;height:7px;background:var(--blue);border-radius:50%}

.prel{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}

@media(max-width:1000px){
  .phome{grid-template-columns:repeat(3,1fr);row-gap:26px}
  .pgrid4,.prel{grid-template-columns:repeat(2,1fr)}
  .pd{grid-template-columns:1fr;gap:28px}
}
@media(max-width:768px){
  .phome{grid-template-columns:repeat(2,1fr);gap:14px;row-gap:22px}
  .phome-i h3{font-size:13.5px;margin:11px 0 5px}
  .phome-i .spec{font-size:11.5px}
  .pcat{margin-bottom:38px}
  .pcat-hd h2{font-size:21px;display:block}
  .pcat-hd .alias{display:block;margin:6px 0 0;font-size:13px}
  .pcat-tab th{width:96px;padding:10px 11px;font-size:12.5px}
  .pcat-tab td{padding:10px 11px;font-size:13px}
  .pgrid4,.prel{grid-template-columns:1fr 1fr;gap:12px}
  .pitem .bd{padding:12px}
  .pitem h3{font-size:13.5px}
  .pitem .desc{font-size:12px}
  .pd-info h1{font-size:21px}
  .pd-kv{grid-template-columns:1fr}
  .ptab button{padding:12px 16px;font-size:14.5px}
}

/* 产品详情页横幅标题（非 h1，避免与产品名 h1 冲突） */
.phead-title{font-size:40px;font-weight:800;color:#fff;letter-spacing:-.5px;line-height:1.25;margin-bottom:12px}
@media(max-width:768px){.phead-title{font-size:26px}}

/* ============================================================
   解决方案 · 场景分类筛选
   ============================================================ */
.scat{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:96px;z-index:80}
.hd.small ~ main .scat{top:74px}
.scat .wrap{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.scat .wrap::-webkit-scrollbar{display:none}
.scat button{
  padding:16px 22px;font-size:15.5px;font-weight:700;color:var(--ink-2);
  white-space:nowrap;border-bottom:3px solid transparent;transition:.22s;cursor:pointer;
}
.scat button:hover{color:var(--blue)}
.scat button.on{color:var(--blue);border-bottom-color:var(--blue)}

.sgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scard{
  background:#fff;border:1px solid var(--line);overflow:hidden;transition:.3s;
  display:flex;flex-direction:column;
}
.scard:hover{border-color:transparent;box-shadow:var(--sh-h);transform:translateY(-5px)}
.scard .ph{aspect-ratio:16/10;overflow:hidden;background:var(--bg);position:relative}
.scard .ph img{width:100%;height:100%;object-fit:cover;transition:transform .55s}
.scard:hover .ph img{transform:scale(1.06)}
.scard .ph .cat{
  position:absolute;left:0;top:14px;background:var(--blue);color:#fff;
  font-size:11.5px;font-weight:700;padding:5px 12px;letter-spacing:.3px;
}
.scard .bd{padding:20px 22px 18px;flex:1;display:flex;flex-direction:column}
.scard h3{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:10px;transition:color .2s}
.scard:hover h3{color:var(--blue)}
.scard .desc{font-size:13.5px;color:var(--gray);line-height:1.85;flex:1}
.scard .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:13px}
.scard .tags span{font-size:11.5px;color:var(--blue);background:var(--blue-ll);padding:3px 9px;border-radius:2px}
.scard .more{
  margin-top:14px;padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--blue);font-weight:600;display:flex;justify-content:space-between;align-items:center;
}
.scard .more span:last-child{transition:transform .25s}
.scard:hover .more span:last-child{transform:translateX(4px)}
.sempty{text-align:center;padding:60px 20px;color:var(--gray);font-size:15px;display:none}
.sempty.on{display:block}

/* ============================================================
   方案详情页（三级页）
   ============================================================ */
.sd-hero{position:relative;height:340px;overflow:hidden;background:var(--ink)}
.sd-hero img{width:100%;height:100%;object-fit:cover;opacity:.55}
.sd-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,45,105,.9) 0%,rgba(15,115,239,.55) 55%,rgba(15,115,239,.12) 100%)}
.sd-hero .wrap{position:absolute;inset:0;z-index:3;display:flex;flex-direction:column;justify-content:center}
.sd-hero .cat{
  display:inline-flex;align-items:center;gap:9px;color:var(--amber);
  font-size:13px;font-weight:700;letter-spacing:2.5px;margin-bottom:14px;
}
.sd-hero .cat::before{content:"";width:30px;height:2px;background:var(--amber)}
.sd-hero h1{font-size:36px;font-weight:800;color:#fff;line-height:1.3;letter-spacing:-.5px;margin-bottom:12px;max-width:760px}
.sd-hero p{color:rgba(255,255,255,.86);font-size:15px;line-height:1.85;max-width:700px}

.sdtab{border-bottom:2px solid var(--line);display:flex;margin-bottom:30px;overflow-x:auto;scrollbar-width:none}
.sdtab::-webkit-scrollbar{display:none}
.sdtab button{
  padding:15px 30px;font-size:16.5px;font-weight:700;color:var(--gray);cursor:pointer;
  border-bottom:3px solid transparent;margin-bottom:-2px;white-space:nowrap;transition:.2s;
}
.sdtab button:hover{color:var(--ink)}
.sdtab button.on{color:var(--ink);border-bottom-color:var(--blue)}
.sdpanel{display:none}
.sdpanel.on{display:block;animation:fade .4s}

.sd-body h3{font-size:21px;font-weight:800;margin:30px 0 14px;display:flex;align-items:center;gap:11px;line-height:1.45}
.sd-body h3:first-child{margin-top:0}
.sd-body h3::before{content:"";width:5px;height:20px;background:var(--blue);flex-shrink:0;border-radius:1px}
.sd-body h4{font-size:16.5px;font-weight:700;margin:22px 0 10px;color:var(--blue-d)}
.sd-body p{color:var(--ink-2);font-size:15px;line-height:2;margin-bottom:14px}
.sd-body ol{counter-reset:sd;margin-bottom:16px}
.sd-body ol li{
  counter-increment:sd;position:relative;padding:10px 0 10px 36px;
  font-size:14.8px;color:var(--ink-2);line-height:1.9;border-bottom:1px dashed var(--line);
}
.sd-body ol li:last-child{border-bottom:0}
.sd-body ol li::before{
  content:counter(sd);position:absolute;left:0;top:12px;width:23px;height:23px;
  background:var(--blue-l);color:var(--blue);border-radius:50%;
  font-size:12.5px;font-weight:800;display:grid;place-items:center;
}
.sd-body ul.dot li{
  position:relative;padding:9px 0 9px 22px;font-size:14.8px;color:var(--ink-2);line-height:1.9;
  border-bottom:1px dashed var(--line);
}
.sd-body ul.dot li:last-child{border-bottom:0}
.sd-body ul.dot li::before{content:"";position:absolute;left:0;top:18px;width:7px;height:7px;background:var(--amber);transform:rotate(45deg)}
.sd-body ul.dot li b{color:var(--ink)}
.sd-note{background:var(--blue-ll);border-left:3px solid var(--blue);padding:16px 20px;margin:20px 0}
.sd-note p{margin:0;font-size:14px;line-height:1.9}

/* 方案产品表 */
.ptabs{display:flex;gap:0;border-bottom:1px solid var(--line);margin-bottom:0;overflow-x:auto;scrollbar-width:none}
.ptabs::-webkit-scrollbar{display:none}
.ptabs button{
  padding:12px 20px;font-size:15px;font-weight:700;color:var(--gray);cursor:pointer;
  border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap;transition:.2s;
}
.ptabs button.on{color:#C8241C;border-bottom-color:#C8241C}
.pplist{display:none}
.pplist.on{display:block}
.prow{display:grid;grid-template-columns:120px 1fr 150px 130px 90px;gap:18px;align-items:center;
  padding:18px 10px;border-bottom:1px solid var(--line)}
.prow:last-child{border-bottom:0}
.prow .pimg{width:100%;aspect-ratio:1/1;background:var(--bg);display:grid;place-items:center;
  border-radius:3px;overflow:hidden;position:relative}
.prow .pimg em{font-style:normal;font-size:11px;color:var(--gray);text-align:center;padding:0 6px;line-height:1.5}
.prow .pimg .badge{position:absolute;left:0;top:0;background:var(--blue);color:#fff;font-size:10px;padding:2px 7px;font-weight:700}
.prow .pname{font-size:15.5px;font-weight:700;line-height:1.5;color:var(--ink)}
.prow .pmodel{font-size:12.5px;color:var(--gray);margin-top:5px}
.prow .pfunc{font-size:13.5px;color:var(--ink-2)}
.prow .pprice{font-size:15px;font-weight:700;color:#C8241C}
.prow .pprice small{display:block;font-size:11px;color:var(--gray);font-weight:400;margin-top:3px}
.prow .pspec{font-size:13px;color:var(--gray)}

/* 方案附件 */
.att{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.attn{background:#fff;border:1px solid var(--line);padding:20px 22px;display:flex;gap:15px;align-items:center;transition:.26s}
.attn:hover{border-color:var(--blue);box-shadow:var(--sh)}
.attn .ic{width:44px;height:44px;flex-shrink:0;background:var(--blue-l);display:grid;place-items:center;border-radius:4px}
.attn .ic svg{width:22px;height:22px;fill:var(--blue)}
.attn strong{display:block;font-size:15.5px;font-weight:700;margin-bottom:4px}
.attn span{display:block;font-size:12.5px;color:var(--gray);line-height:1.65}
.attn .get{margin-left:auto;font-size:13px;color:var(--blue);font-weight:700;white-space:nowrap}

@media(max-width:1000px){
  .sgrid{grid-template-columns:1fr 1fr}
  .scat{top:68px}
  .prow{grid-template-columns:90px 1fr 110px;gap:14px}
  .prow .pfunc{grid-column:2;font-size:12.5px}
  .prow .pspec{display:none}
  .att{grid-template-columns:1fr}
}
@media(max-width:768px){
  .sgrid{grid-template-columns:1fr;gap:14px}
  .scat button{padding:13px 15px;font-size:14px}
  .sd-hero{height:auto;padding:44px 0}
  .sd-hero h1{font-size:23px}
  .sd-hero p{font-size:13.5px}
  .sdtab button{padding:12px 17px;font-size:14.5px}
  .sd-body h3{font-size:18px}
  .sd-body p,.sd-body ol li,.sd-body ul.dot li{font-size:14px}
  .prow{grid-template-columns:70px 1fr;gap:12px;padding:14px 4px}
  .prow .pname{font-size:14px}
  .prow .pfunc,.prow .pprice{grid-column:2}
  .prow .pprice{font-size:14px}
}

/* ============================================================
   方案详情页 · 顶部导语区（左文右图）
   ============================================================ */
.sd-intro{background:var(--bg);padding:56px 0 60px}
.sd-intro .wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.sd-intro .cat{
  display:inline-flex;align-items:center;gap:9px;color:var(--blue);
  font-size:13px;font-weight:700;letter-spacing:2.5px;margin-bottom:16px;
}
.sd-intro .cat::before{content:"";width:28px;height:2px;background:var(--amber)}
.sd-intro h1{font-size:34px;font-weight:800;line-height:1.35;letter-spacing:-.5px;margin-bottom:18px;color:var(--ink)}
.sd-intro p{color:var(--ink-2);font-size:15.5px;line-height:2;margin-bottom:20px}
.sd-date{font-size:13.5px;color:var(--gray);margin-bottom:26px}
.sd-date b{font-weight:400;color:var(--ink-2);margin-left:6px}
.sd-ipic{border-radius:10px;overflow:hidden;box-shadow:0 14px 40px rgba(12,27,46,.13);aspect-ratio:16/10;background:#fff}
.sd-ipic img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.sd-ipic:hover img{transform:scale(1.04)}
.sd-icta{display:flex;gap:12px;flex-wrap:wrap}

@media(max-width:1000px){
  .sd-intro .wrap{grid-template-columns:1fr;gap:30px}
  .sd-intro .sd-ipic{order:-1}
}
@media(max-width:768px){
  .sd-intro{padding:32px 0 36px}
  .sd-intro h1{font-size:23px;margin-bottom:14px}
  .sd-intro p{font-size:14px;line-height:1.9}
  .sd-date{margin-bottom:20px;font-size:12.5px}
}