:root{
  --blue-900:#0f1f3d; --blue-800:#13294b; --blue-700:#1e3a8a; --blue-600:#2563eb;
  --blue-500:#3b82f6; --sky:#0ea5e9; --cyan:#22d3ee;
  --ink:#0f172a; --slate:#475569; --muted:#94a3b8;
  --bg:#f6f9ff; --card:#ffffff; --line:#e2e8f0;
  --ok:#16a34a; --warn:#f59e0b;
  --shadow:0 10px 30px rgba(30,58,138,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
/* NAV */
.nav{position:sticky;top:0;z-index:50;background:rgba(15,31,61,.92);backdrop-filter:blur(8px);color:#fff}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.5px}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.nav links,.nav ul{display:flex;gap:26px;list-style:none;font-size:15px}
.nav a{opacity:.85;transition:.2s}
.nav a:hover{opacity:1;color:var(--cyan)}
.btn{display:inline-block;padding:11px 22px;border-radius:10px;font-weight:700;transition:.2s;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(135deg,var(--blue-600),var(--sky));color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.35)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-line{background:#fff;color:var(--blue-700);border:1px solid var(--line)}
/* HERO */
.hero{background:radial-gradient(1200px 500px at 80% -10%,rgba(14,165,233,.25),transparent),
  linear-gradient(135deg,var(--blue-900),var(--blue-700));color:#fff;padding:90px 0 80px;position:relative;overflow:hidden}
.hero h1{font-size:40px;line-height:1.25;font-weight:800;margin-bottom:18px}
.hero p.lead{font-size:18px;color:#cfe0ff;max-width:680px;margin-bottom:30px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.hero .badges{margin-top:34px;display:flex;gap:30px;flex-wrap:wrap;color:#bcd2ff;font-size:14px}
.hero .badges b{display:block;font-size:26px;color:#fff;font-weight:800}
/* quick channels */
.channels{background:#fff;border-bottom:1px solid var(--line)}
.channels .wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.channel{padding:22px 26px;border-right:1px solid var(--line);transition:.2s}
.channel:last-child{border-right:none}
.channel h4{color:var(--blue-700);font-size:16px;margin-bottom:6px}
.channel p{color:var(--slate);font-size:14px}
.channel a{color:var(--sky);font-weight:700;font-size:14px}
/* sections */
section{padding:72px 0}
.sec-head{text-align:center;margin-bottom:46px}
.sec-head .tag{color:var(--blue-600);font-weight:800;letter-spacing:2px;font-size:13px;text-transform:uppercase}
.sec-head h2{font-size:30px;margin:10px 0 12px;color:var(--blue-900)}
.sec-head p{color:var(--slate);max-width:680px;margin:0 auto}
/* product grid */
.grid{display:grid;gap:22px}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:var(--shadow);transition:.25s}
.card:hover{transform:translateY(-4px);border-color:var(--blue-500)}
.card.star{border:1px solid var(--blue-500);box-shadow:0 12px 34px rgba(37,99,235,.18)}
.card .pin{display:inline-block;background:var(--blue-600);color:#fff;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;margin-bottom:12px}
.card h3{font-size:19px;color:var(--blue-900);margin-bottom:8px}
.card p{color:var(--slate);font-size:14.5px}
/* trust */
.trust{background:linear-gradient(135deg,var(--blue-900),var(--blue-800));color:#fff}
.trust .stat{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.trust .stat .num{font-size:38px;font-weight:800;color:var(--cyan)}
.trust .stat .lbl{color:#bcd2ff;font-size:14px;margin-top:6px}
/* case industries */
.industries{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.industries span{background:#eaf1ff;color:var(--blue-700);border:1px solid #d4e2ff;padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600}
/* form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
label{font-size:14px;font-weight:600;color:var(--slate)}
input,textarea,select{padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit;background:#fff}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.note{font-size:13px;color:var(--muted)}
/* footer */
footer{background:var(--blue-900);color:#cbd9f2;padding:48px 0 26px;font-size:14px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
footer h5{color:#fff;margin-bottom:14px;font-size:15px}
footer a{color:#9fb6e0;display:block;margin-bottom:8px}
footer a:hover{color:var(--cyan)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:18px;color:#7e93bf;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
/* article */
.article{max-width:820px;margin:0 auto}
.article .meta{color:var(--muted);font-size:14px;margin-bottom:18px}
.article h1{font-size:30px;color:var(--blue-900);margin-bottom:14px}
.article p{margin-bottom:16px;color:#334155}
.cat{display:inline-block;background:#eaf1ff;color:var(--blue-700);padding:3px 12px;border-radius:999px;font-size:12px;font-weight:700}
/* admin */
.admin-layout{display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:start}
.admin-side{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;position:sticky;top:84px}
.admin-side a{display:block;padding:10px 14px;border-radius:8px;color:var(--slate);font-weight:600}
.admin-side a.active,.admin-side a:hover{background:#eaf1ff;color:var(--blue-700)}
.admin-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px}
/* ===== visuals ===== */
.brand img.logo{width:30px;height:30px;border-radius:8px;flex:none}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero-media{display:flex;justify-content:center}
.hero-media img{width:100%;max-width:560px;filter:drop-shadow(0 20px 40px rgba(0,0,0,.35))}
.icon{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#eaf1ff,#dbeafe);display:flex;align-items:center;justify-content:center;margin-bottom:14px;box-shadow:inset 0 0 0 1px #d8e6ff;flex:none}
.icon svg{width:22px;height:22px}
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.case-card{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);transition:.25s}
.case-card:hover{transform:translateY(-4px)}
.case-card img{width:100%;display:block;height:200px;object-fit:cover}
.case-body{padding:20px 22px}
.case-body h3{font-size:18px;color:var(--blue-900);margin-bottom:8px}
.case-body p{color:var(--slate);font-size:14px}
.case-tag{display:inline-block;background:#eaf1ff;color:var(--blue-700);font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;margin-bottom:10px}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);transition:.25s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px)}
.news-card img{width:100%;height:180px;object-fit:cover;display:block}
.news-body{padding:18px 20px;flex:1;display:flex;flex-direction:column}
.news-body h3{font-size:17px;color:var(--blue-900);margin:10px 0 8px}
.news-body p{color:var(--slate);font-size:14px;flex:1}
.news-body .more{color:var(--sky);font-weight:700;font-size:14px;margin-top:10px}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.about-grid img{width:100%;border-radius:16px;box-shadow:var(--shadow)}
.about-list{list-style:none;display:grid;gap:14px;margin-top:18px}
.about-list li{display:flex;gap:12px;align-items:flex-start;color:var(--slate)}
.about-list .ck{width:22px;height:22px;border-radius:50%;background:var(--blue-600);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;flex:none;margin-top:2px}
.info-list{display:grid;gap:14px}
.info-item{display:flex;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;min-width:0}
.info-item .icon{margin:0;flex:none}
.info-item>div{min-width:0}
.info-item b{color:var(--blue-900);display:block;font-size:15px}
.info-item span{color:var(--slate);font-size:13px;display:block;overflow-wrap:anywhere}
footer .fbrand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
footer .fbrand img{width:26px;height:26px;border-radius:7px}
.cols-2.contact{grid-template-columns:1.1fr .9fr}
.page-head{background:linear-gradient(135deg,var(--blue-900),var(--blue-700));color:#fff;padding:56px 0}
.page-head h1{font-size:32px;margin-bottom:10px}
.page-head p{color:#cfe0ff;max-width:680px}
.share-bar{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0}
.share-bar .btn{padding:9px 16px;font-size:14px}
.prod-block{padding:64px 0}
.prod-block:nth-child(even){background:#eef4ff}
.prod-block h2{font-size:26px;color:var(--blue-900);margin-bottom:6px}
.prod-block .sub{color:var(--slate);margin-bottom:26px}
.lead-line{font-size:18px;color:var(--slate);max-width:760px;margin:0 auto}
/* ===== product detail (data-driven) ===== */
.detail{padding:52px 0}
.crumb{font-size:13.5px;color:var(--slate);margin-bottom:22px}
.crumb a{color:var(--slate)}
.crumb a:hover{color:var(--blue-700)}
.crumb span{color:var(--blue-700);font-weight:600}
.detail-head{display:flex;gap:20px;align-items:center;margin-bottom:16px}
.detail-icon{width:74px;height:74px;border-radius:18px;background:linear-gradient(135deg,#eaf1ff,#dbeafe);display:flex;align-items:center;justify-content:center;box-shadow:inset 0 0 0 1px #d8e6ff;flex:none}
.detail-icon svg{width:38px;height:38px}
.detail-icon .icon-img{width:38px;height:38px}
.detail-head h1{font-size:30px;color:var(--blue-900);margin-bottom:6px}
.detail-tagline{color:var(--sky);font-weight:700;font-size:15px}
.detail-desc{font-size:16.5px;color:var(--slate);max-width:780px;line-height:1.75;margin-bottom:4px}
.detail h2{font-size:23px;color:var(--blue-900);margin:36px 0 16px}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{background:#eaf1ff;color:var(--blue-700);padding:7px 15px;border-radius:999px;font-size:13.5px;font-weight:600}
.card .more{display:inline-block;color:var(--sky);font-weight:700;font-size:14px;margin-top:12px}
.card .more:hover{text-decoration:underline}
.icon-img{width:24px;height:24px;object-fit:contain}
.detail-cta{margin-top:46px;background:#eef4ff;border-radius:16px;padding:36px 24px;text-align:center}
.detail-cta h2{margin:0 0 10px;font-size:24px;color:var(--blue-900)}
.detail-cta p{color:var(--slate);margin-bottom:22px}
.detail-cta .btn{margin:0 6px}
/* ===== hero slider (banners.json) ===== */
.hero-slider{position:relative;overflow:hidden;background:linear-gradient(135deg,var(--blue-900),var(--blue-700));color:#fff}
.slide-track{display:flex;transition:transform .6s ease}
.slide{flex:0 0 100%;min-width:100%}
.hero-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:58px 0}
.slide-arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);color:#fff;font-size:26px;line-height:1;cursor:pointer;z-index:3}
.slide-arrow:hover{background:rgba(255,255,255,.3)}
.slide-arrow.prev{left:18px}
.slide-arrow.next{right:18px}
.slide-dots{position:absolute;left:0;right:0;bottom:18px;display:flex;justify-content:center;gap:8px;z-index:3}
.slide-dots .dot{width:9px;height:9px;padding:0;border:none;border-radius:999px;background:rgba(255,255,255,.38);cursor:pointer;transition:.25s}
.slide-dots .dot.on{width:26px;background:#fff}
/* ===== nav 横向分组下拉面板（mega menu） ===== */
.nav ul li.has-menu{position:static}
.has-menu > a{display:inline-flex;align-items:center;gap:6px}
.has-menu > a::after{content:'';width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-2px);opacity:.65;transition:transform .25s ease,opacity .25s}
.has-menu:hover > a,.has-menu:focus-within > a{opacity:1;color:var(--cyan)}
.has-menu:hover > a::after,.has-menu:focus-within > a::after{transform:rotate(225deg) translateY(-1px);opacity:1}
.has-menu .dropdown{position:absolute;top:100%;left:0;right:0;background:#fff;border-top:1px solid var(--line);
  border-radius:0 0 20px 20px;box-shadow:0 26px 60px rgba(15,44,107,.16);overflow:hidden;
  opacity:0;visibility:hidden;transform:translateY(-10px);z-index:60;
  transition:opacity .22s ease,transform .3s cubic-bezier(.22,.85,.3,1),visibility .22s}
.has-menu:hover .dropdown,.has-menu:focus-within .dropdown,.has-menu.open .dropdown{opacity:1;visibility:visible;transform:translateY(0)}

.mega{max-width:1200px;margin:0 auto;padding:26px 20px 20px;display:grid;grid-template-columns:minmax(0,1fr);gap:28px;align-items:start}
.mega-with-promo{grid-template-columns:minmax(0,1fr) 288px}
.mega-cols{display:grid;gap:0;align-items:start}
.mega-cols-1{grid-template-columns:minmax(0,1fr)}
.mega-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.mega-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.mega-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.mega-col{min-width:0;padding:0 20px}
.mega-col + .mega-col{border-left:1px solid #eef2f8}
.mega-col:first-child{padding-left:0}
.mega-col-head{padding:0 10px 8px}
.mega-col-title{display:block;font-size:13.5px;font-weight:800;color:var(--blue-900);letter-spacing:.3px;position:relative;padding-left:12px}
.mega-col-title::before{content:'';position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:2px;background:linear-gradient(180deg,var(--blue-600),var(--cyan))}
.mega-col-desc{display:block;padding-left:12px;margin-top:2px;font-size:12px;color:var(--muted);line-height:1.6}
.mega-item{display:flex;gap:11px;align-items:flex-start;padding:9px 10px;border-radius:12px;transition:background .18s ease,transform .18s ease}
.mega-item:hover{background:linear-gradient(90deg,#f1f6ff,#f8fbff);transform:translateX(2px)}
.mega-item-icon{width:34px;height:34px;border-radius:10px;background:#eef4ff;display:flex;align-items:center;justify-content:center;flex:none;transition:background .2s ease}
.mega-item-icon svg{width:18px;height:18px;transition:stroke .2s ease}
.mega-item-icon .icon-img{width:18px;height:18px}
.mega-item:hover .mega-item-icon{background:linear-gradient(135deg,var(--blue-600),var(--sky))}
.mega-item:hover .mega-item-icon svg{stroke:#fff}
.mega-item-text{min-width:0}
.mega-item-text b{display:block;font-size:14px;font-weight:700;color:var(--ink);line-height:1.45;transition:color .18s}
.mega-item:hover .mega-item-text b{color:var(--blue-600)}
.mega-item-text i{display:block;font-style:normal;font-size:12px;color:var(--muted);line-height:1.55;margin-top:1px}
.mega-promo{position:relative;overflow:hidden;background:linear-gradient(150deg,#13294b 0%,#1e3a8a 55%,#0ea5e9 140%);border-radius:16px;padding:22px;color:#fff}
.mega-promo::after{content:'';position:absolute;right:-46px;bottom:-58px;width:158px;height:158px;border-radius:50%;background:rgba(34,211,238,.18)}
.mega-promo-tag{display:inline-block;font-size:11.5px;padding:3px 10px;border-radius:999px;background:rgba(255,255,255,.16);margin-bottom:11px;position:relative}
.mega-promo h4{font-size:17px;margin-bottom:8px;position:relative}
.mega-promo p{font-size:12.5px;line-height:1.8;color:rgba(255,255,255,.82);margin-bottom:16px;position:relative}
.mega-promo-btn{position:relative;padding:9px 18px;font-size:13.5px;box-shadow:0 8px 18px rgba(2,20,60,.28)}
.mega-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;padding:11px 32px;border-top:1px solid #eef2f8;background:#fafcff}
.mega-count{font-size:12.5px;color:var(--muted)}
.mega-foot-links{display:flex;gap:24px}
.mega-foot-links a{font-size:13px;font-weight:700;color:var(--blue-700)}
.mega-foot-links a:hover{color:var(--sky)}
@media(max-width:1080px){
  .mega{grid-template-columns:minmax(0,1fr)}
  .mega-promo{display:none}
}
/* ===== article body (共用：产品/案例/资讯详情) ===== */
.article-body{max-width:780px}
.article-body h2{font-size:21px;color:var(--blue-900);margin:30px 0 12px}
.article-body p{color:var(--slate);font-size:15.5px;line-height:1.85;margin-bottom:14px}
.article-body ul{margin:0 0 16px 20px;color:var(--slate);line-height:1.8}
.article-body li{margin-bottom:8px}
.article-body strong{color:var(--blue-900)}
.article-meta{display:flex;gap:16px;flex-wrap:wrap;color:var(--slate);font-size:13px;margin-bottom:20px}
.article-meta span{display:inline-flex;gap:5px}
.draft-tip{background:#fff8e6;border-left:3px solid #f0b429;padding:11px 15px;font-size:13px;color:#8a6100;border-radius:6px;margin-top:20px}
.result-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:6px 0 4px}
.result-item{background:#eef4ff;border-radius:14px;padding:18px;text-align:center}
.result-item b{display:block;font-size:24px;color:var(--blue-900)}
.result-item span{font-size:13px;color:var(--slate)}
.share-label{font-size:13px;color:var(--slate);align-self:center;margin-right:4px}
@media(max-width:880px){
  .hero-wrap{grid-template-columns:1fr;padding:40px 0}
  .slide-arrow{display:none}
  .result-list{grid-template-columns:1fr}
  .has-menu .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;display:none}

  .detail-head{flex-direction:column;align-items:flex-start}
  .detail-head h1{font-size:25px}

  .channels .wrap{grid-template-columns:1fr}
  .channel{border-right:none;border-bottom:1px solid var(--line)}
  .cols-3,.cols-2,.cols-2.contact,.trust .stat,.form-grid,.admin-layout{grid-template-columns:1fr}
  footer .cols,.footer .cols{grid-template-columns:repeat(2,1fr);gap:20px}
  footer .cols>div:first-child,.footer .cols>div:first-child{grid-column:1/-1}
  .hero h1{font-size:30px}
  .hero .wrap,.case-grid,.news-grid,.about-grid{grid-template-columns:1fr}
  .hero-media{display:none}
  .nav ul{display:none}
}

/* ===== 常见问题 FAQ ===== */
.faq{max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin-bottom:14px;background:#fff;transition:.2s}
.faq-item:hover{border-color:var(--blue-500);box-shadow:var(--shadow)}
.faq-item h3{font-size:16.5px;color:var(--blue-900);margin-bottom:8px;padding-left:14px;position:relative}
.faq-item h3::before{content:'';position:absolute;left:0;top:6px;width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,var(--blue-600),var(--cyan))}
.faq-item p{color:var(--slate);font-size:15px;line-height:1.85}

/* ===== 移动端：汉堡按钮 + 抽屉导航 + 底部快捷条 ===== */
.nav-toggle{display:none}
.mobile-drawer{position:fixed;inset:0;z-index:200;visibility:hidden}
.mobile-drawer.open{visibility:visible}
.drawer-mask{position:absolute;inset:0;background:rgba(10,24,52,.5);opacity:0;transition:opacity .25s ease}
.mobile-drawer.open .drawer-mask{opacity:1}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:86%;max-width:360px;background:#fff;
  display:flex;flex-direction:column;transform:translateX(102%);
  transition:transform .3s cubic-bezier(.22,.85,.3,1);box-shadow:-12px 0 40px rgba(10,24,52,.2)}
.mobile-drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;
  background:linear-gradient(135deg,var(--blue-900),var(--blue-700));color:#fff}
.drawer-brand{font-weight:800;font-size:16px}
.drawer-close{background:none;border:none;color:#fff;font-size:28px;line-height:1;cursor:pointer;padding:0 6px}
.drawer-nav{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:6px 0 16px}
.drawer-item{border-bottom:1px solid #f1f5f9}
.drawer-link,.drawer-acc{display:flex;align-items:center;justify-content:space-between;width:100%;
  padding:15px 18px;font-size:16px;font-weight:700;color:var(--ink);background:none;border:none;
  text-align:left;cursor:pointer;font-family:inherit}
.drawer-acc i{width:8px;height:8px;border-right:2px solid var(--slate);border-bottom:2px solid var(--slate);
  transform:rotate(45deg);transition:transform .25s}
.drawer-item.expanded .drawer-acc i{transform:rotate(225deg)}
.drawer-sub{display:none;padding:2px 0 10px;background:#f8fbff}
.drawer-item.expanded .drawer-sub{display:block}
.drawer-sub-title{padding:10px 18px 4px;font-size:12px;font-weight:800;color:var(--blue-700)}
.drawer-sub a{display:flex;align-items:center;gap:10px;padding:10px 18px;font-size:14.5px;color:var(--slate)}
.drawer-sub a:active{background:#eef4ff}
.drawer-sub-icon{width:26px;height:26px;border-radius:8px;background:#eef4ff;display:flex;
  align-items:center;justify-content:center;flex:none}
.drawer-sub-icon svg{width:15px;height:15px}
.drawer-sub-icon .icon-img{width:15px;height:15px}
.drawer-all{display:block;padding:12px 18px;color:var(--sky);font-weight:700;font-size:14px}
.drawer-foot{padding:14px 18px;border-top:1px solid var(--line);display:grid;gap:10px;background:#fff}
.drawer-foot .btn{text-align:center}
body.nav-open{overflow:hidden}
.mobile-bar{display:none}

/* 手机 / 平板竖屏 */
@media(max-width:880px){
  .nav .wrap{position:relative}
  .nav .btn-primary{display:none}
  .nav-toggle{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
    width:42px;height:42px;flex:none;margin-left:auto;border-radius:11px;cursor:pointer;
    border:1px solid rgba(255,255,255,.55);background:rgba(255,255,255,.16)}
  .nav-toggle span{display:block;width:20px;height:2.5px;border-radius:2px;background:#fff;
    transition:transform .25s,opacity .2s}
  .nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.active span:nth-child(2){opacity:0}
  .nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  .mobile-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;
    border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(15,31,61,.1);
    padding-bottom:env(safe-area-inset-bottom)}
  .mobile-bar a{flex:1;text-align:center;padding:12px 4px;font-size:14px;font-weight:700;color:var(--blue-700)}
  .mobile-bar a+a{border-left:1px solid var(--line)}
  .mobile-bar a.hot{background:linear-gradient(135deg,var(--blue-600),var(--sky));color:#fff}
  body{padding-bottom:58px}

  /* 排版收敛：缩小留白与字号，避免手机上字过大、页面过长 */
  .hero-slider h1{font-size:26px;line-height:1.3}
  .hero-slider .lead{font-size:15.5px}
  .hero-slider .badges{gap:18px;font-size:13px}
  .hero-slider .badges b{font-size:22px}
  .hero-wrap{padding:38px 0 52px}
  .slide-dots{bottom:14px}
  section{padding:50px 0}
  .sec-head{margin-bottom:32px}
  .sec-head h2{font-size:24px}
  .page-head h1,.detail-head h1{font-size:24px}
  .card{padding:20px}
  .btn{padding:12px 20px}
  .industries{gap:8px}
  .article-body h2{font-size:19px}
  .article-body p{font-size:15px}
  .detail-desc{font-size:15px}
  .crumb{font-size:13px}
  .stat{grid-template-columns:repeat(2,1fr)}
  /* 宽表格在手机上可横向滑动，不撑破页面 */
  table{display:block;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
  /* 禁止横向滚动条（防止长英文/代码块溢出） */
  html,body{overflow-x:hidden}
}