:root{
  --bg-0:#0A1929;
  --bg-1:#0F2438;
  --bg-2:#13283f;
  --glass:rgba(20,46,72,.55);
  --glass-strong:rgba(16,38,60,.82);
  --stroke:rgba(72,202,228,.22);
  --stroke-soft:rgba(120,160,200,.16);
  --c-cyan:#00B4D8;
  --c-cyan-2:#48CAE4;
  --c-cyan-3:#0096C7;
  --c-teal:#2DD4BF;
  --c-amber:#FBBF24;
  --c-red:#F87171;
  --txt:#E6F1FF;
  --txt-dim:#9FB6CC;
  --txt-deep:#1A2B3C;
  --radius:16px;
  --maxw:1180px;
  --readw:820px;
  --tocw:240px;
  --h2-inset:16px;          /* 文章/列表/产品：面包屑与 H2 左缘对齐 */
  --page-inset:48px;        /* 页面卡：面包屑内缩 */
  --shadow:0 18px 50px rgba(0,0,0,.38);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--txt);
  background:
    radial-gradient(1200px 700px at 80% -10%,rgba(0,180,216,.18),transparent 60%),
    radial-gradient(900px 600px at 0% 0%,rgba(45,212,191,.12),transparent 55%),
    linear-gradient(180deg,var(--bg-0),var(--bg-1) 55%,var(--bg-0));
  background-attachment:fixed;
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--c-cyan-2);text-decoration:none}
img{max-width:100%}
h1,h2,h3,h4{line-height:1.3;font-weight:600}
.tag-text{
  display:inline-block;font-size:12.5px;color:var(--c-cyan-2);
  background:rgba(0,180,216,.12);border:1px solid var(--stroke);
  padding:3px 10px;border-radius:999px;margin:0 6px 6px 0;
}

/* ===== 顶部固定导航（玻璃拟态） ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:var(--glass-strong);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--stroke-soft);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;height:64px;
  display:flex;align-items:center;gap:18px;padding:0 20px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--txt);font-weight:600}
.brand-mark{
  width:26px;height:26px;border-radius:8px;
  background:linear-gradient(135deg,var(--c-cyan),var(--c-teal));
  box-shadow:0 0 16px rgba(0,180,216,.6);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;font-size:17px}
.brand-text small{font-size:11px;color:var(--txt-dim);font-weight:400;margin-top:2px}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:10px;
  color:var(--txt-dim);font-size:15px;background:none;border:none;cursor:pointer;font-family:inherit;
  transition:.18s;
}
.nav-link:hover{color:var(--txt);background:rgba(0,180,216,.12)}
.nav-item.has-sub{position:relative}
/* 悬停桥接：填补按钮与下拉面板之间的空隙，鼠标下移时不丢失 hover、可正常点击 */
.nav-item.has-sub::after{content:"";position:absolute;left:-8px;right:-8px;top:100%;height:14px}
.sub-menu{
  position:absolute;top:46px;left:0;min-width:188px;z-index:70;
  background:var(--glass-strong);backdrop-filter:blur(14px);
  border:1px solid var(--stroke-soft);border-radius:12px;padding:8px;
  display:none;box-shadow:var(--shadow);
}
.nav-item.has-sub:hover .sub-menu,.sub-menu.open{display:block}
.sub-menu a{display:block;padding:9px 12px;border-radius:8px;color:var(--txt-dim);font-size:14px}
.sub-menu a:hover{color:var(--txt);background:rgba(0,180,216,.14)}
.nav-toggle{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:8px;margin-left:auto}
.nav-toggle span{width:22px;height:2px;background:var(--txt);border-radius:2px;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== 主体布局 ===== */
.site-main{padding-top:64px}
.article-layout,.list-layout{
  max-width:var(--maxw);margin:0 auto;padding:28px 20px 60px;
  display:grid;grid-template-columns:minmax(0,1fr) var(--tocw);gap:40px;align-items:start;
}
.article-col,.list-col{min-width:0}
.page-wrap{max-width:var(--readw);margin:0 auto;padding:28px 20px 60px}

/* 面包屑：与 H2 同栅格左缘对齐 */
.breadcrumb{
  padding:10px 0 14px;border-bottom:1px solid var(--stroke-soft);margin-bottom:18px;
}
.breadcrumb-list{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:0;padding:0;font-size:13.5px;color:var(--txt-dim)}
.breadcrumb-item a{color:var(--txt-dim)}
.breadcrumb-item a:hover{color:var(--c-cyan-2)}
.breadcrumb-sep{opacity:.5}
.breadcrumb-item span[aria-current]{color:var(--txt)}

/* 文章/产品正文 */
.article-body{
  background:var(--glass);border:1px solid var(--stroke-soft);border-radius:var(--radius);
  padding:30px var(--h2-inset) 34px;backdrop-filter:blur(6px);
}
.article-title{font-size:30px;margin:0 0 14px;background:linear-gradient(120deg,#fff,var(--c-cyan-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.article-summary{
  font-size:15.5px;color:var(--txt);background:rgba(0,180,216,.08);
  border-left:3px solid var(--c-cyan);padding:12px 16px;border-radius:0 10px 10px 0;margin-bottom:14px;
}
.article-keywords{margin-bottom:8px}
.article-update{display:inline-block;font-size:12.5px;color:var(--txt-dim);margin-bottom:18px}
.article-content{font-size:16px;color:var(--txt)}
.article-content h2{
  font-size:22px;margin:30px 0 12px;padding-left:12px;border-left:3px solid var(--c-cyan);scroll-margin-top:84px;
}
.article-content h3{font-size:18px;margin:22px 0 10px;color:var(--c-cyan-2);scroll-margin-top:84px}
.article-content p{margin:12px 0}
.article-content ul,.article-content ol{padding-left:22px;margin:12px 0}
.article-content li{margin:6px 0}
.article-content blockquote{
  margin:14px 0;padding:12px 16px;background:rgba(45,212,191,.08);
  border-left:3px solid var(--c-teal);border-radius:0 10px 10px 0;color:var(--txt);
}
.article-content strong{color:#fff}

/* 表格（class=data，玻璃描边） */
table.data{
  width:100%;border-collapse:collapse;margin:16px 0;font-size:14.5px;
  background:rgba(10,25,41,.55);border-radius:12px;overflow:hidden;
}
table.data th,table.data td{border:1px solid var(--stroke-soft);padding:10px 12px;text-align:left}
table.data th{background:rgba(0,180,216,.16);color:#fff;font-weight:600}
table.data tr:nth-child(even) td{background:rgba(255,255,255,.03)}

/* TOC 悬浮（sticky，禁 fixed） */
.toc-aside{position:sticky;top:84px;max-height:calc(100vh - 110px);overflow-y:auto;align-self:start}
.toc-title{font-size:13px;color:var(--txt-dim);text-transform:uppercase;letter-spacing:.08em;margin:0 0 10px}
.toc-list{list-style:none;margin:0;padding:0;border-left:1px solid var(--stroke-soft)}
.toc-li{margin:0}
.toc-li a{display:block;padding:6px 0 6px 14px;font-size:13.5px;color:var(--txt-dim);border-left:2px solid transparent;margin-left:-1px}
.toc-li a:hover,.toc-li a.active{color:var(--c-cyan-2);border-left-color:var(--c-cyan)}
.toc-h3 a{padding-left:28px;font-size:12.5px}

/* FAQ 裸 details */
.faq-block{margin-top:30px;border-top:1px solid var(--stroke-soft);padding-top:18px}
.faq-heading{font-size:20px;margin:0 0 12px}
.faq-item{border:1px solid var(--stroke-soft);border-radius:10px;margin:8px 0;background:rgba(255,255,255,.03);overflow:hidden}
.faq-item summary{cursor:pointer;padding:12px 16px;font-weight:500;color:var(--txt);list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"+";color:var(--c-cyan);margin-right:10px;font-weight:700}
.faq-item[open] summary::before{content:"−"}
.faq-a{padding:0 16px 14px;color:var(--txt-dim);font-size:14.5px}

/* 相关阅读 */
.related{margin-top:28px;border-top:1px solid var(--stroke-soft);padding-top:16px}
.related-heading{font-size:19px;margin:0 0 12px}
.related-list{list-style:none;margin:0;padding:0}
.related-list li{padding:10px 0;border-bottom:1px dashed var(--stroke-soft)}
.related-list a{color:var(--c-cyan-2);font-weight:500}
.related-why{display:block;color:var(--txt-dim);font-size:13.5px;margin-top:2px}

/* 实践经验 callout */
.case-study{margin:22px 0;padding:14px 16px;border-radius:12px;background:rgba(251,191,36,.08);border:1px solid rgba(251,191,36,.3)}
.case-study-tag{display:inline-block;font-size:12px;color:var(--c-amber);font-weight:600;margin-bottom:6px}
.case-study p{margin:0;font-size:14.5px;color:var(--txt)}

/* ===== 列表 / 分类页 ===== */
.list-head{margin-bottom:18px}
.list-title{font-size:26px;margin:0 0 6px}
.list-intro{color:var(--txt-dim);margin:0}
.list-cards{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.list-card{border:1px solid var(--stroke-soft);border-radius:14px;background:var(--glass);transition:.2s;overflow:hidden}
.list-card:hover{transform:translateY(-2px);border-color:var(--stroke);box-shadow:var(--shadow)}
.list-card-link{display:block;padding:18px 20px;color:var(--txt)}
.list-card-cat{font-size:12px;color:var(--c-teal)}
.list-card-title{font-size:18px;margin:6px 0;color:#fff}
.list-card-desc{color:var(--txt-dim);font-size:14px;margin:0 0 8px}
.list-card-meta{font-size:12.5px;color:var(--txt-dim)}
.cat-side{position:sticky;top:84px;align-self:start}
.cat-side-title{font-size:13px;color:var(--txt-dim);text-transform:uppercase;letter-spacing:.08em;margin:0 0 10px}
.category-list{list-style:none;margin:0;padding:0;border-left:1px solid var(--stroke-soft)}
.category-list-item{margin:0}
.category-list-item a{display:block;padding:10px 0 10px 16px;color:var(--txt-dim);border-left:2px solid transparent;margin-left:-1px;font-size:14.5px}
.category-list-item a:hover{color:var(--c-cyan-2)}
.category-list-item.active a{color:var(--c-cyan-2);border-left-color:var(--c-cyan);font-weight:600}

/* ===== Hero / 首页 ===== */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--stroke-soft)}
.hero-glow{position:absolute;inset:-30% 0 auto 0;height:520px;background:radial-gradient(600px 300px at 50% 0%,rgba(0,180,216,.28),transparent 70%);filter:blur(10px)}
.hero-inner{max-width:var(--maxw);margin:0 auto;padding:90px 20px 70px;position:relative;text-align:center}
.hero-eyebrow{color:var(--c-cyan-2);letter-spacing:.18em;font-size:13px;text-transform:uppercase;margin:0 0 14px}
.hero-title{font-size:42px;margin:0 0 18px;background:linear-gradient(120deg,#fff,var(--c-cyan-2) 70%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{max-width:680px;margin:0 auto 26px;color:var(--txt-dim);font-size:16.5px}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:22px}
.btn-primary{display:inline-flex;align-items:center;padding:12px 24px;border-radius:999px;color:#04121f;font-weight:600;background:linear-gradient(120deg,var(--c-cyan),var(--c-teal));box-shadow:0 10px 30px rgba(0,180,216,.4);transition:.2s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 38px rgba(0,180,216,.55)}
.btn-ghost{display:inline-flex;align-items:center;padding:12px 24px;border-radius:999px;color:var(--txt);border:1px solid var(--stroke);background:rgba(255,255,255,.04);transition:.2s}
.btn-ghost:hover{border-color:var(--c-cyan);color:var(--c-cyan-2)}
.hero-tags{list-style:none;display:flex;flex-wrap:wrap;gap:6px;justify-content:center;padding:0;margin:0}

.section{max-width:var(--maxw);margin:0 auto;padding:54px 20px}
.section-alt{background:rgba(255,255,255,.025);border-top:1px solid var(--stroke-soft);border-bottom:1px solid var(--stroke-soft)}
.section-head{text-align:center;margin-bottom:30px}
.section-title{font-size:28px;margin:0 0 8px}
.section-sub{color:var(--txt-dim);margin:0}
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.product-card{border:1px solid var(--stroke-soft);border-radius:16px;padding:20px;background:var(--glass);transition:.22s;display:flex;flex-direction:column;gap:6px}
.product-card:hover{transform:translateY(-3px);border-color:var(--stroke);box-shadow:var(--shadow)}
.product-card-cat{font-size:12px;color:var(--c-teal)}
.product-card-title{font-size:18px;margin:2px 0;color:#fff}
.product-card-desc{font-size:14px;color:var(--txt-dim);margin:0;flex:1}
.product-card-link{font-size:13.5px;color:var(--c-cyan-2);font-weight:600}
.scene-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.scene-card{border:1px solid var(--stroke-soft);border-radius:14px;padding:18px;background:var(--glass)}
.scene-title{font-size:17px;color:var(--c-cyan-2);margin:0 0 8px}
.scene-desc{font-size:14px;color:var(--txt-dim);margin:0}
.baseline-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.baseline-card{
  display:flex;flex-direction:column;gap:5px;
  border:1px solid rgba(120,160,200,.20);border-radius:12px;padding:16px 18px;
  background:linear-gradient(180deg,rgba(13,30,48,.72),rgba(10,23,38,.66));
}
.baseline-name{font-size:13.5px;color:#A9BED4;line-height:1.5}
.baseline-val{font-size:21px;color:#F3F8FF;font-weight:600;letter-spacing:.01em;line-height:1.35}
.baseline-note{font-size:12.5px;color:#8CA3B9}
.article-feed{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.feed-item{border:1px solid var(--stroke-soft);border-radius:12px;background:var(--glass);transition:.2s}
.feed-item:hover{border-color:var(--stroke)}
.feed-link{display:grid;grid-template-columns:90px 1fr;gap:6px 14px;padding:14px 18px;align-items:baseline}
.feed-cat{font-size:12px;color:var(--c-teal);grid-row:span 2}
.feed-title{font-size:16px;color:#fff;font-weight:500}
.feed-desc{font-size:13.5px;color:var(--txt-dim)}

/* ===== 页面（关于/服务/方案/联系/隐私） ===== */
.page-body{background:var(--glass);border:1px solid var(--stroke-soft);border-radius:var(--radius);padding:34px var(--page-inset);backdrop-filter:blur(6px)}
.page-title{font-size:28px;margin:0 0 10px}
.page-lead{color:var(--txt-dim);margin:0 0 18px}
.page-content h2{font-size:21px;margin:24px 0 10px;padding-left:12px;border-left:3px solid var(--c-cyan)}
.page-content h3{font-size:17px;color:var(--c-cyan-2);margin:18px 0 8px}
.page-content table.data{margin:14px 0}

/* 归档 */
.archive-group{margin:18px 0}
.archive-group-title{font-size:18px;color:var(--c-cyan-2);border-bottom:1px solid var(--stroke-soft);padding-bottom:6px}
.archive-list{list-style:none;padding:0;margin:10px 0}
.archive-item{display:flex;justify-content:space-between;gap:14px;padding:8px 0;border-bottom:1px dashed var(--stroke-soft)}
.archive-item a{color:var(--txt)}
.archive-date{color:var(--txt-dim);font-size:13px;white-space:nowrap}
.notfound{text-align:center}

/* ===== 页脚 ===== */
.site-footer{background:var(--glass-strong);border-top:1px solid var(--stroke-soft);margin-top:40px}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:40px 20px 20px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:24px}
.footer-col h4{font-size:14px;color:var(--c-cyan-2);margin:0 0 12px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin:7px 0}
.footer-col a{color:var(--txt-dim);font-size:14px}
.footer-col a:hover{color:var(--c-cyan-2)}
.footer-about p{font-size:13.5px;color:var(--txt-dim);margin:10px 0 0}
.footer-brand{font-size:18px;font-weight:600;color:var(--txt);display:flex;flex-direction:column}
.footer-brand small{font-size:11px;color:var(--txt-dim);font-weight:400;margin-top:2px}
.footer-bottom{max-width:var(--maxw);margin:0 auto;padding:14px 20px;border-top:1px solid var(--stroke-soft);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:12.5px;color:var(--txt-dim)}

/* ===== 右侧悬浮胶囊 ===== */
.float-capsule{
  position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:70;
  display:flex;flex-direction:column;gap:10px;
  padding:10px 8px;border-radius:999px;
  background:linear-gradient(160deg,rgba(16,54,82,.94),rgba(13,70,86,.94));
  border:1px solid rgba(90,180,210,.30);
  box-shadow:0 14px 34px rgba(0,40,64,.5);
}
.capsule-btn{
  width:46px;height:46px;border-radius:50%;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  background:rgba(255,255,255,.10);border:1px solid rgba(140,210,230,.22);
  color:#EAF6FF;font-size:10.5px;letter-spacing:.02em;font-family:inherit;transition:.18s;
}
.capsule-btn:hover{background:rgba(72,202,228,.26);border-color:rgba(140,220,240,.5);transform:scale(1.06)}
.capsule-btn svg{display:block}
.capsule-btn span{line-height:1}

/* 企业微信名片弹窗 */
.weixin-modal{position:fixed;inset:0;z-index:90;display:none;align-items:center;justify-content:center}
.weixin-modal.open{display:flex}
.weixin-modal-mask{position:absolute;inset:0;background:rgba(4,12,22,.7);backdrop-filter:blur(3px)}
.weixin-modal-card{position:relative;background:#fff;border-radius:16px;padding:14px;box-shadow:var(--shadow);text-align:center}
.weixin-modal-close{position:absolute;top:-12px;right:-12px;width:30px;height:30px;border-radius:50%;border:none;background:#04121f;color:#fff;font-size:18px;cursor:pointer;line-height:1}
.weixin-modal-imgwrap{width:300px;height:500px;display:flex;align-items:center;justify-content:center;background:#f3f6fa;border-radius:10px;overflow:hidden}
.weixin-modal-imgwrap img{max-width:300px;max-height:500px;object-fit:contain}
.weixin-modal-tip{color:#1A2B3C;font-size:13px;margin:10px 0 2px}

/* ===== 响应式 ===== */
@media (max-width:980px){
  .article-layout,.list-layout{grid-template-columns:1fr;gap:0}
  .toc-aside,.cat-side{display:none}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .nav-toggle{display:flex}
  .nav-menu{
    position:fixed;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--glass-strong);backdrop-filter:blur(14px);border-bottom:1px solid var(--stroke-soft);
    padding:10px 16px 18px;display:none;
  }
  .nav-menu.open{display:flex}
  .nav-link{height:46px;width:100%;justify-content:flex-start}
  .sub-menu{position:static;box-shadow:none;border:none;background:rgba(255,255,255,.03);margin:0 0 4px 8px;display:none}
  .sub-menu.open{display:block}
  .nav-item.has-sub>.sub-menu.open{display:block}
  .nav-item.has-sub::after{display:none}
  .hero-title{font-size:30px}
  .article-body,.page-body{padding-left:16px;padding-right:16px}
  .float-capsule{right:10px;gap:8px}
  .capsule-btn{width:42px;height:42px}
  .footer-inner{grid-template-columns:1fr}
  .feed-link{grid-template-columns:1fr}
  .feed-cat{grid-row:auto}
}