/* ==========================================================================
   Sinoiots — 企业官网设计系统  (Dark Tech / Industrial IoT)
   目录:
   01 Tokens 02 Reset/Base 03 排版 04 布局容器 05 按钮 06 徽章/标签
   07 顶栏/导航 08 Hero(首页) 09 内页 Hero 10 数字/指标 11 卡片
   12 解决方案卡 13 架构图 14 流程步骤 15 列表/勾选 16 新闻卡 17 案例卡
   18 资质/认证 19 CTA 横幅 20 联系我们 21 页脚 22 工具类/动画
   23 响应式 24 动效偏好
   ========================================================================== */

/* ---------- 01 Tokens ---------- */
:root{
  --bg-0:#04060c;
  --bg-1:#060a14;
  --bg-2:#0a1120;
  --bg-3:#0e1830;
  --panel:rgba(13,22,41,.55);
  --panel-2:rgba(17,29,54,.66);
  --line:rgba(120,170,255,.13);
  --line-2:rgba(120,170,255,.28);
  --ink:#eaf2ff;
  --ink-2:#c3d3ec;
  --muted:#8499bd;
  --faint:#5c7096;
  --brand:#3b82f6;
  --brand-2:#38e1ff;
  --brand-3:#2f6bff;
  --grad:linear-gradient(100deg,#4f9bff 0%,#38e1ff 100%);
  --grad-soft:linear-gradient(135deg,rgba(59,130,246,.16),rgba(56,225,255,.10));
  --ok:#34d9b2;
  --warn:#ffb454;
  --danger:#ff5d73;
  --radius:18px;
  --radius-sm:12px;
  --shadow-lg:0 24px 70px -28px rgba(2,8,24,.9);
  --shadow-glow:0 10px 44px -12px rgba(56,180,255,.55);
  --font:'Alibaba PuHuiTi 3.0','AlibabaPuHuiTi',-apple-system,'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei UI','Microsoft YaHei','Segoe UI',sans-serif;
  --mono:'SFMono-Regular',Consolas,'Liberation Mono',Menlo,monospace;
  --header-h:74px;
  --ease:cubic-bezier(.22,.9,.24,1);
}

@font-face{
  font-family:'Alibaba PuHuiTi 3.0';
  src:url('https://fonts.alibabagroup.com/AlibabaPuHuiTi/3.0/AlibabaPuHuiTi-3-55-Regular.woff2') format('woff2'),
      url('https://fonts.alibabagroup.com/AlibabaPuHuiTi/3.0/AlibabaPuHuiTi-3-55-Regular.woff') format('woff');
  font-weight:400;font-style:normal;font-display:swap;
}
@font-face{
  font-family:'Alibaba PuHuiTi 3.0';
  src:url('https://fonts.alibabagroup.com/AlibabaPuHuiTi/3.0/AlibabaPuHuiTi-3-75-Bold.woff2') format('woff2'),
      url('https://fonts.alibabagroup.com/AlibabaPuHuiTi/3.0/AlibabaPuHuiTi-3-75-Bold.woff') format('woff');
  font-weight:700;font-style:normal;font-display:swap;
}

/* ---------- 02 Reset / Base ---------- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--bg-0);
  color:var(--ink);
  line-height:1.75;
  font-size:16px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.lock{overflow:hidden}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:1rem;color:var(--ink)}
h1,h2,h3,h4{line-height:1.28;font-weight:700;letter-spacing:.01em}
p{color:var(--ink-2)}
strong{color:var(--ink);font-weight:700}
::selection{background:rgba(56,225,255,.28);color:#fff}
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-track{background:var(--bg-1)}
::-webkit-scrollbar-thumb{background:#1c2c4c;border-radius:8px;border:2px solid var(--bg-1)}
::-webkit-scrollbar-thumb:hover{background:#2a4066}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:4px}
[id]{scroll-margin-top:calc(var(--header-h) + 18px)}

/* ---------- 03 排版 ---------- */
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;
  font-size:.8rem;font-weight:700;letter-spacing:.32em;text-transform:uppercase;
  color:var(--brand-2);margin-bottom:1.1rem;white-space:nowrap;
}
.eyebrow::before{content:'';width:26px;height:1px;background:var(--brand-2);box-shadow:0 0 8px var(--brand-2)}
.h-xl{font-size:clamp(2.3rem,5.2vw,3.9rem);font-weight:700;line-height:1.14;letter-spacing:.005em}
.h-lg{font-size:clamp(1.9rem,3.6vw,2.7rem);font-weight:700;line-height:1.22}
.h-md{font-size:clamp(1.45rem,2.4vw,1.85rem);font-weight:700;line-height:1.3}
.lead{font-size:clamp(1.02rem,1.4vw,1.18rem);color:var(--muted);line-height:1.9;max-width:62ch}
.lead.wide{max-width:78ch}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
hr.sep{border:0;border-top:1px solid var(--line);margin:0}

/* ---------- 04 布局 ---------- */
.wrap{width:min(1200px,100% - 3rem);margin-inline:auto}
.wrap.narrow{width:min(980px,100% - 3rem)}
.section{padding-block:clamp(4.2rem,8vw,6.6rem);position:relative}
.section.tight{padding-block:clamp(2.6rem,5vw,4rem)}
.sec-head{margin-bottom:clamp(2.2rem,4.5vw,3.4rem);max-width:820px}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-head.center .eyebrow{justify-content:center}
.sec-head.center .eyebrow::after{content:'';width:26px;height:1px;background:var(--brand-2);box-shadow:0 0 8px var(--brand-2)}
.sec-head .h-lg{margin-bottom:.9rem}
.sec-head .lead{max-width:74ch}
.sec-head.center .lead{margin-inline:auto}
.grid{display:grid;gap:1.4rem}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.center{text-align:center}
.mt1{margin-top:1rem}.mt2{margin-top:2rem}.mt3{margin-top:3rem}
.mb1{margin-bottom:1rem}.mb2{margin-bottom:2rem}

/* 区隔底纹：暗色下不同区块之间极淡的径向辉光 */
.section.tint::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(900px 400px at 50% 0%,rgba(47,107,255,.07),transparent 70%);
}

/* ---------- 05 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  padding:.8rem 1.7rem;border-radius:12px;font-weight:700;font-size:.98rem;
  letter-spacing:.02em;line-height:1;white-space:nowrap;position:relative;
  transition:transform .25s var(--ease),box-shadow .25s,background .25s,border-color .25s,color .25s;
  will-change:transform;
}
.btn .i{width:1.05em;height:1.05em;transition:transform .25s var(--ease)}
.btn:hover .i{transform:translateX(3px)}
.btn:active{transform:translateY(1px) scale(.99)}
.btn.primary{
  color:#fff;background:var(--grad);box-shadow:var(--shadow-glow);
}
.btn.primary:hover{transform:translateY(-2px);box-shadow:0 16px 52px -12px rgba(56,190,255,.7)}
.btn.ghost{
  color:var(--ink);border:1px solid var(--line-2);background:rgba(120,170,255,.05);
  backdrop-filter:blur(6px);
}
.btn.ghost:hover{border-color:rgba(56,225,255,.65);color:#fff;transform:translateY(-2px);background:rgba(56,225,255,.08)}
.btn.lg{padding:1rem 2.1rem;border-radius:14px;font-size:1.05rem}
.btn.sm{padding:.55rem 1.05rem;border-radius:10px;font-size:.87rem}
.btn.link{
  padding:0;color:var(--brand-2);font-weight:700;display:inline-flex;gap:.4rem;align-items:center;
}
.btn.link:hover{color:#8ef0ff}
.btn.link .i{width:1em;height:1em}

/* ---------- 06 徽章/标签/勾选 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:.4rem;padding:.32rem .85rem;border-radius:999px;
  border:1px solid rgba(120,170,255,.22);background:rgba(120,170,255,.07);
  font-size:.82rem;color:var(--ink-2);white-space:nowrap;font-weight:600;
}
.badge b{color:var(--brand-2);font-weight:700}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 8px var(--brand-2)}
.tag{
  display:inline-flex;align-items:center;gap:.35rem;padding:.26rem .7rem;border-radius:8px;
  border:1px solid var(--line);background:rgba(10,18,32,.7);color:var(--muted);
  font-size:.8rem;white-space:nowrap;
}
.tag.hot{border-color:rgba(56,225,255,.4);color:#9beaff}
.flag{font-size:.72rem;letter-spacing:.06em;color:var(--faint)}

/* ---------- 07 顶栏/导航 ---------- */
.header{
  position:fixed;inset:0 0 auto;z-index:900;height:var(--header-h);
  display:flex;align-items:center;
  background:rgba(5,8,16,.55);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;transition:background .3s,border-color .3s,height .3s;
}
.header.scrolled{
  background:rgba(5,8,16,.88);border-bottom-color:var(--line);
  box-shadow:0 12px 34px -20px rgba(0,0,0,.8);
}
.header .wrap{display:flex;align-items:center;gap:2rem;height:100%}
.logo{display:inline-flex;align-items:center;gap:.75rem;flex:0 0 auto;min-width:0}
.logo .mark{width:38px;height:38px;flex:0 0 auto;filter:drop-shadow(0 0 10px rgba(56,225,255,.45))}
.logo .brand-txt{display:flex;flex-direction:column;line-height:1.12;min-width:0}
.logo .brand-txt .en{font-size:1.18rem;font-weight:800;letter-spacing:.12em;color:#fff}
.logo .brand-txt .zh{font-size:.62rem;letter-spacing:.42em;color:var(--muted);white-space:nowrap;text-transform:uppercase}
.nav{margin-left:auto;display:flex;align-items:center;gap:2.2rem}
.nav ul{display:flex;align-items:center;gap:1.9rem}
.nav a.nlink{
  font-size:.95rem;font-weight:600;color:var(--ink-2);position:relative;padding:.35rem 0;
  transition:color .2s;
}
.nav a.nlink::after{
  content:'';position:absolute;left:0;right:100%;bottom:-2px;height:2px;
  background:var(--grad);border-radius:2px;transition:right .3s var(--ease);
  box-shadow:0 0 8px rgba(56,225,255,.8);
}
.nav a.nlink:hover{color:#fff}
.nav a.nlink:hover::after{right:0}
.nav a.nlink.active{color:#fff}
.nav a.nlink.active::after{right:0}
.nav .actions{display:flex;align-items:center;gap:.9rem;margin-left:.6rem}
.lang{
  display:inline-flex;align-items:center;gap:.35rem;font-size:.85rem;font-weight:700;
  color:var(--muted);transition:color .2s;
}
.lang:hover{color:#fff}
.lang .globe{width:15px;height:15px;opacity:.8}
.lang.on{color:var(--brand-2)}
.nav-cta{display:none}
.burger{display:none;width:44px;height:44px;border-radius:10px;position:relative;z-index:1001}
.burger span{position:absolute;left:11px;right:11px;height:2px;background:#dfe9fb;border-radius:2px;transition:.3s var(--ease)}
.burger span:nth-child(1){top:15px}
.burger span:nth-child(2){top:21.5px}
.burger span:nth-child(3){top:28px}
body.nav-open .burger span:nth-child(1){top:21px;transform:rotate(45deg)}
body.nav-open .burger span:nth-child(2){opacity:0;transform:translateX(-8px)}
body.nav-open .burger span:nth-child(3){top:21px;transform:rotate(-45deg)}

/* ---------- 08 Hero(首页) ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding-top:calc(var(--header-h) + 2.5rem);padding-bottom:3rem;overflow:hidden;
}
#fx{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-bg .gridlines{
  position:absolute;inset:-2px;
  background-image:linear-gradient(rgba(110,165,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(110,165,255,.055) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(1200px 700px at 55% 32%,#000 20%,transparent 78%);
          mask-image:radial-gradient(1200px 700px at 55% 32%,#000 20%,transparent 78%);
}
.hero-bg .glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5}
.hero-bg .glow.a{width:560px;height:560px;left:-140px;top:-120px;background:radial-gradient(circle,rgba(47,107,255,.4),transparent 65%)}
.hero-bg .glow.b{width:720px;height:720px;right:-220px;bottom:-240px;background:radial-gradient(circle,rgba(20,170,255,.26),transparent 62%)}
.hero-bg .glow.c{width:300px;height:300px;right:16%;top:12%;background:radial-gradient(circle,rgba(56,225,255,.18),transparent 60%);animation:pulse 7s ease-in-out infinite}
.hero .wrap{position:relative;z-index:2}
.hero-in{max-width:820px}
.hero .chiprow{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:1.6rem}
.hero h1{margin:0 0 1.3rem;font-size:clamp(2.35rem,5.6vw,4.15rem);font-weight:800;line-height:1.16;letter-spacing:.01em}
.hero .h-sub{font-size:clamp(1.05rem,1.6vw,1.3rem);color:var(--ink-2);max-width:56ch;margin-bottom:.8rem;line-height:1.85}
.hero .h-sub b{color:#fff}
.hero-cta{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2rem}
.hero-meta{display:flex;flex-wrap:wrap;gap:1.6rem;margin-top:2.6rem;color:var(--muted);font-size:.92rem}
.hero-meta li{display:flex;align-items:center;gap:.5rem}
.hero-meta .ck{width:17px;height:17px;color:#41e2b8;flex:0 0 auto}
.scroll-cue{
  position:absolute;left:50%;bottom:1.1rem;transform:translateX(-50%);z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:.35rem;color:var(--faint);font-size:.68rem;
  letter-spacing:.3em;text-transform:uppercase;
}
.scroll-cue::after{content:'';width:1px;height:34px;background:linear-gradient(var(--brand-2),transparent);animation:drop 1.8s var(--ease) infinite}

/* 首页 Hero 底部：快速数据四连 */
.hero-trust{
  position:relative;z-index:2;margin-top:clamp(2.2rem,5vh,3.6rem);
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;
}
.hero-trust>div{
  background:linear-gradient(160deg,rgba(10,17,32,.85),rgba(7,12,24,.9));
  padding:1.25rem 1.4rem;backdrop-filter:blur(4px);
}
.hero-trust .n{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums}
.hero-trust .n small{font-size:.55em;color:var(--brand-2);font-weight:700;margin-left:2px}
.hero-trust .t{font-size:.8rem;color:var(--muted);margin-top:.3rem}

/* ---------- 09 内页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;padding-top:calc(var(--header-h) + clamp(3rem,7vw,5rem));
  padding-bottom:clamp(2.6rem,6vw,4.2rem);
}
.page-hero .bg-g{position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(110,165,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(110,165,255,.045) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(1000px 460px at 30% 0%,#000,transparent 80%);
          mask-image:radial-gradient(1000px 460px at 30% 0%,#000,transparent 80%);
}
.page-hero .bg-g::after{content:'';position:absolute;inset:0;
  background:radial-gradient(700px 320px at 88% -10%,rgba(56,225,255,.1),transparent 60%),
             radial-gradient(500px 300px at -6% 110%,rgba(47,107,255,.16),transparent 60%);}
.page-hero .wrap{position:relative;z-index:1;max-width:900px}
.page-hero .crumbs{display:flex;align-items:center;gap:.6rem;font-size:.85rem;color:var(--faint);margin-bottom:1.4rem}
.page-hero .crumbs a{color:var(--muted);transition:color .2s}
.page-hero .crumbs a:hover{color:#fff}
.page-hero .crumbs svg{width:12px;height:12px;opacity:.6}
.page-hero .lead{margin-top:1rem}

/* ---------- 10 数字/指标 ---------- */
.stat-band{
  border-block:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,18,34,.6),rgba(6,10,20,.3));
  position:relative;overflow:hidden;
}
.stat-band::before{content:'';position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(56,225,255,.6),transparent)}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line)}
.stat{padding:2.1rem 1.6rem;text-align:center;background:rgba(7,11,20,.4);position:relative}
.stat+.stat::before{content:'';position:absolute;left:-.5px;top:20%;height:60%;width:1px;background:var(--line)}
.stat .num{font-size:clamp(1.9rem,3.4vw,2.9rem);font-weight:800;line-height:1.05;font-variant-numeric:tabular-nums}
.stat .num small{font-size:.5em;font-weight:800;margin-left:.1rem}
.stat .lbl{margin-top:.5rem;font-size:.9rem;color:var(--muted)}

/* ---------- 11 卡片 ---------- */
.card{
  position:relative;border-radius:var(--radius);padding:1.9rem;
  background:linear-gradient(165deg,var(--panel-2),rgba(9,15,29,.5));
  border:1px solid var(--line);overflow:hidden;
  transition:transform .35s var(--ease),border-color .35s,box-shadow .35s;
}
.card::before{content:'';position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .35s;
  background:radial-gradient(420px 200px at 20% -10%,rgba(56,180,255,.14),transparent 65%)}
.card::after{content:'';position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .35s;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent);
  transform:translateX(-100%);}
.card:hover{transform:translateY(-6px);border-color:var(--line-2);box-shadow:var(--shadow-lg)}
.card:hover::before{opacity:1}
.card:hover::after{opacity:1;animation:sheen .9s var(--ease)}
.fcard .ficon{width:56px;height:56px;border-radius:15px;display:grid;place-items:center;margin-bottom:1.25rem;
  background:linear-gradient(145deg,rgba(59,130,246,.2),rgba(56,225,255,.08));
  border:1px solid rgba(120,180,255,.25);color:#7fd7ff;position:relative}
.fcard .ficon svg{width:28px;height:28px}
.fcard .ficon::after{content:'';position:absolute;inset:0;border-radius:15px;
  box-shadow:inset 0 0 18px rgba(56,225,255,.12)}
.fcard h3{font-size:1.14rem;margin-bottom:.55rem}
.fcard p{font-size:.92rem;color:var(--muted)}
.fcard .flink{margin-top:1rem;display:inline-flex;align-items:center;gap:.4rem;font-size:.88rem;color:var(--brand-2);font-weight:600}
.fcard .flink .i{width:.95em;height:.95em}
.fcard .flink:hover{color:#9beaff}
.card .num-xl{font-size:2.6rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.card.slim{padding:1.5rem}

/* ---------- 12 解决方案卡 ---------- */
.scard{position:relative;border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;
  background:linear-gradient(165deg,rgba(16,27,51,.78),rgba(8,13,26,.85));
  border:1px solid var(--line);transition:transform .35s var(--ease),border-color .35s,box-shadow .35s;}
.scard:hover{transform:translateY(-6px);border-color:rgba(56,180,255,.4);box-shadow:var(--shadow-lg)}
.scard .sc-top{position:relative;height:150px;overflow:hidden;display:grid;place-items:center;border-bottom:1px solid var(--line)}
.scard .sc-top .art{position:absolute;inset:0}
.scard .sc-top svg{position:relative;width:64px;height:64px;color:#fff;filter:drop-shadow(0 6px 24px rgba(56,190,255,.5))}
.scard .sc-top .no{position:absolute;right:14px;top:6px;font-size:3.4rem;font-weight:800;line-height:1;color:rgba(255,255,255,.05);font-family:var(--mono)}
.scard .sc-body{padding:1.6rem 1.7rem 1.8rem;display:flex;flex-direction:column;gap:.6rem;flex:1}
.scard .sc-body h3{font-size:1.2rem;margin-bottom:.1rem}
.scard .sc-body>p{font-size:.9rem;color:var(--muted);flex:1}
.scard .tags{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:.4rem}
.art-a{background:radial-gradient(240px 130px at 30% 10%,rgba(47,107,255,.45),transparent 65%),radial-gradient(200px 140px at 85% 90%,rgba(56,225,255,.22),transparent 60%),linear-gradient(160deg,#0c1730,#060b18)}
.art-b{background:radial-gradient(240px 130px at 70% 0%,rgba(20,160,255,.4),transparent 65%),radial-gradient(180px 150px at 10% 100%,rgba(64,80,255,.3),transparent 60%),linear-gradient(160deg,#0d1a36,#070c1a)}
.art-c{background:radial-gradient(240px 130px at 25% 0%,rgba(52,211,153,.32),transparent 65%),radial-gradient(200px 140px at 90% 100%,rgba(56,225,255,.2),transparent 60%),linear-gradient(160deg,#0b2031,#060b18)}
.art-d{background:radial-gradient(240px 130px at 80% 0%,rgba(120,120,255,.4),transparent 65%),radial-gradient(200px 150px at 0% 100%,rgba(56,225,255,.18),transparent 60%),linear-gradient(160deg,#151033,#0a0818)}
.art-e{background:radial-gradient(240px 130px at 30% 10%,rgba(255,150,60,.3),transparent 65%),radial-gradient(200px 130px at 90% 100%,rgba(47,107,255,.3),transparent 60%),linear-gradient(160deg,#241c0d,#0a0816)}
.art-f{background:radial-gradient(240px 130px at 25% 0%,rgba(56,190,255,.34),transparent 65%),radial-gradient(210px 150px at 90% 100%,rgba(90,120,255,.38),transparent 62%),linear-gradient(160deg,#0b2233,#050b18)}
.scard .sc-top::after{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:30px 30px;opacity:.35;
  -webkit-mask-image:radial-gradient(260px 120px at 50% 40%,#000,transparent 85%);mask-image:radial-gradient(260px 120px at 50% 40%,#000,transparent 85%)}

/* 深行方案条目 */
.srow{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.8rem,5vw,4.4rem);align-items:center;
  padding-block:clamp(2.4rem,5vw,3.4rem)}
.srow+.srow{border-top:1px solid var(--line)}
.srow.flip .srow-art{order:2}
.srow-txt .h-md{margin-bottom:1rem}
.srow-txt .kpis{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.4rem}
.srow-txt p.lead{margin-top:.4rem}
.srow-art{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/10.5;display:grid;place-items:center;background:var(--grad-soft)}
.srow-art .svgart{position:relative;z-index:1;width:min(56%,100%);filter:drop-shadow(0 18px 40px rgba(0,0,0,.45))}
.srow-art::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(120,170,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,255,.06) 1px,transparent 1px);background-size:34px 34px}
.srow-art::after{content:'';position:absolute;left:8%;right:8%;bottom:10%;height:1px;background:linear-gradient(90deg,transparent,rgba(56,225,255,.7),transparent);box-shadow:0 0 18px rgba(56,225,255,.6)}

/* ---------- 13 架构图 ---------- */
.arch{margin-top:.6rem}
.arch-layer{position:relative;display:grid;grid-template-columns:150px 1fr;gap:1.2rem;align-items:center}
.arch-tag{position:relative;z-index:2}
.arch-tag .t{font-size:.8rem;letter-spacing:.24em;color:var(--brand-2);font-weight:700;text-transform:uppercase}
.arch-tag .n{font-size:1.7rem;font-weight:800;font-family:var(--mono);color:rgba(120,170,255,.25);line-height:1}
.arch-box{position:relative;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:linear-gradient(160deg,rgba(16,27,51,.6),rgba(8,13,26,.7));
  padding:1.1rem 1.2rem;display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;
  transition:border-color .3s,box-shadow .3s}
.arch-box:hover{border-color:rgba(56,180,255,.4);box-shadow:0 0 0 1px rgba(56,180,255,.15),0 14px 40px -22px rgba(56,180,255,.5)}
.arch-box .ab{display:inline-flex;align-items:center;gap:.5rem;font-size:.88rem;font-weight:600;color:var(--ink-2);
  padding:.42rem .8rem;border-radius:9px;background:rgba(120,170,255,.06);border:1px solid rgba(120,170,255,.12)}
.arch-box .ab svg{width:15px;height:15px;color:var(--brand-2)}
.arch-box .ab.hl{border-color:rgba(56,225,255,.35);background:rgba(56,225,255,.09);color:#dffaff}
.arch-join{height:26px;display:grid;place-items:center;margin-left:150px;position:relative}
.arch-join::before{content:'';width:1px;height:100%;background:linear-gradient(180deg,rgba(120,170,255,.5),rgba(120,170,255,.1))}
.arch-join .pulse{width:7px;height:7px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 12px var(--brand-2);animation:pulse 2s infinite;position:absolute}

/* ---------- 14 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1.4rem;counter-reset:step}
.step{position:relative;padding:1.7rem 1.5rem;border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(15,26,49,.6),rgba(8,13,26,.5));border:1px solid var(--line);
  transition:transform .3s var(--ease),border-color .3s}
.step:hover{transform:translateY(-5px);border-color:var(--line-2)}
.step .sn{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:1rem;
  font-weight:800;font-size:1.05rem;color:#0a1220;background:var(--grad);box-shadow:var(--shadow-glow)}
.step h3{font-size:1.05rem;margin-bottom:.4rem}
.step p{font-size:.88rem;color:var(--muted)}
.step+.step::before{content:'';position:absolute;top:37px;left:-15px;width:16px;height:1px;
  background:linear-gradient(90deg,rgba(56,225,255,.5),rgba(56,225,255,.05))}

/* ---------- 15 列表/勾选 ---------- */
.tick{display:flex;flex-direction:column;gap:.85rem}
.tick li{display:flex;gap:.7rem;align-items:flex-start;color:var(--ink-2);font-size:.97rem}
.tick li b{color:#fff}
.tick .ck{width:20px;height:20px;flex:0 0 auto;margin-top:.15rem;color:#41e2b8}
.tick .sub{display:block;color:var(--muted);font-size:.85rem;margin-top:.15rem}

/* 双栏内容排版 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.split .lead{margin-top:.8rem}
.panel-art{position:relative;border-radius:var(--radius);border:1px solid var(--line);overflow:hidden;
  background:linear-gradient(165deg,rgba(16,27,51,.7),rgba(8,13,26,.6));
  padding:1.6rem;display:grid;gap:.8rem}
.panel-art .pa-row{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
.panel-art .pa-box{position:relative;border-radius:var(--radius-sm);padding:1rem;background:rgba(120,170,255,.05);
  border:1px solid rgba(120,170,255,.13);font-size:.86rem;color:var(--ink-2)}
.panel-art .pa-box h4{font-size:.92rem;margin-bottom:.3rem;display:flex;align-items:center;gap:.5rem}
.panel-art .pa-box h4 svg{width:16px;height:16px;color:var(--brand-2)}
.panel-art .pa-box p{font-size:.8rem;color:var(--muted)}

/* ---------- 16 新闻卡 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.4rem}
.ncard{position:relative;display:flex;flex-direction:column;border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(170deg,rgba(15,26,49,.7),rgba(8,13,26,.65));border:1px solid var(--line);
  transition:transform .35s var(--ease),border-color .35s,box-shadow .35s}
.ncard:hover{transform:translateY(-6px);border-color:rgba(56,180,255,.4);box-shadow:var(--shadow-lg)}
.ncard .nc-media{position:relative;height:172px;overflow:hidden;display:grid;place-items:center}
.ncard .nc-media svg{width:46px;height:46px;color:rgba(255,255,255,.9);filter:drop-shadow(0 0 22px rgba(56,225,255,.55));position:relative;z-index:1}
.ncard .nc-media .d{position:absolute;z-index:1;left:14px;bottom:12px;font-family:var(--mono);font-size:.78rem;
  color:#cfe9ff;background:rgba(4,8,16,.55);border:1px solid rgba(120,170,255,.25);padding:.2rem .55rem;border-radius:8px;backdrop-filter:blur(4px)}
.ncard .nc-tag{position:absolute;top:12px;right:12px;z-index:1;font-size:.72rem;padding:.2rem .6rem;border-radius:7px;
  background:rgba(56,225,255,.14);border:1px solid rgba(56,225,255,.4);color:#bdf3ff}
.ncard .nc-body{padding:1.3rem 1.4rem 1.5rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.ncard .nc-body h3{font-size:1.05rem;line-height:1.5}
.ncard .nc-body p{font-size:.87rem;color:var(--muted);flex:1}
.ncard .nc-more{display:inline-flex;align-items:center;gap:.35rem;color:var(--brand-2);font-weight:600;font-size:.87rem}
.ncard .nc-more .i{width:.95em;height:.95em}
.nm-a{background:radial-gradient(300px 140px at 30% 10%,rgba(47,107,255,.4),transparent 60%),linear-gradient(160deg,#0c1730,#060b18)}
.nm-b{background:radial-gradient(300px 140px at 75% 5%,rgba(56,225,255,.26),transparent 60%),linear-gradient(160deg,#0b1a31,#060b18)}
.nm-c{background:radial-gradient(300px 140px at 40% 100%,rgba(90,120,255,.3),transparent 60%),linear-gradient(160deg,#101735,#070b18)}

/* ---------- 17 案例卡 ---------- */
.case{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.4rem}
.case-card{position:relative;border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;
  background:linear-gradient(170deg,rgba(15,26,49,.72),rgba(8,13,26,.66));border:1px solid var(--line);
  transition:transform .35s var(--ease),border-color .35s,box-shadow .35s}
.case-card:hover{transform:translateY(-6px);border-color:rgba(56,180,255,.4);box-shadow:var(--shadow-lg)}
.case-card .cc-media{position:relative;height:150px;display:grid;place-items:center;overflow:hidden}
.case-card .cc-media svg{width:54px;height:54px;color:#fff;position:relative;z-index:1;filter:drop-shadow(0 8px 26px rgba(56,190,255,.5))}
.case-card .cc-body{padding:1.4rem 1.5rem 1.6rem;display:flex;flex-direction:column;gap:.45rem;flex:1}
.case-card .cc-body .cat{font-size:.76rem;letter-spacing:.14em;color:var(--brand-2);text-transform:uppercase;font-weight:700}
.case-card .cc-body h3{font-size:1.08rem}
.case-card .cc-body p{font-size:.87rem;color:var(--muted);flex:1}

/* ---------- 18 资质/认证 ---------- */
.cert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.2rem}
.cert{position:relative;display:flex;align-items:center;gap:1rem;padding:1.3rem 1.4rem;
  border-radius:var(--radius-sm);background:linear-gradient(165deg,rgba(15,26,49,.6),rgba(8,13,26,.55));
  border:1px solid var(--line);transition:transform .3s var(--ease),border-color .3s}
.cert:hover{transform:translateY(-4px);border-color:var(--line-2)}
.cert .ci{width:46px;height:46px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;color:#8fe0ff;
  background:linear-gradient(145deg,rgba(59,130,246,.18),rgba(56,225,255,.07));border:1px solid rgba(120,180,255,.22)}
.cert .ci svg{width:24px;height:24px}
.cert b{display:block;font-size:.96rem;color:#fff;line-height:1.35}
.cert span{font-size:.78rem;color:var(--muted)}

/* ---------- 19 CTA 横幅 ---------- */
.cta{position:relative;overflow:hidden;border-radius:calc(var(--radius) + 6px);
  border:1px solid rgba(120,180,255,.25);
  background:linear-gradient(120deg,rgba(29,70,160,.55),rgba(10,38,90,.5) 45%,rgba(6,30,66,.65));
  padding:clamp(2.6rem,6vw,4.4rem) clamp(1.6rem,5vw,4.6rem);text-align:center}
.cta::before{content:'';position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,170,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,255,.08) 1px,transparent 1px);
  background-size:40px 40px;-webkit-mask-image:radial-gradient(700px 300px at 50% 0%,#000,transparent 85%);mask-image:radial-gradient(700px 300px at 50% 0%,#000,transparent 85%)}
.cta .ring{position:absolute;border:1px solid rgba(56,225,255,.25);border-radius:50%;pointer-events:none}
.cta .ring.r1{width:300px;height:300px;left:-90px;top:-120px;box-shadow:0 0 60px rgba(56,225,255,.12) inset}
.cta .ring.r2{width:420px;height:420px;right:-140px;bottom:-200px;border-color:rgba(47,107,255,.3);box-shadow:0 0 80px rgba(47,107,255,.14) inset}
.cta .wrap{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:1rem}
.cta .h-lg{max-width:22ch}
.cta .lead{max-width:60ch}
.cta .btnrow{display:flex;gap:1rem;flex-wrap:wrap;justify-content:center;margin-top:.6rem}

/* ---------- 20 联系我们 ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.c-list{display:grid;gap:1rem;margin-top:.4rem}
.c-item{display:flex;gap:1rem;align-items:flex-start;padding:1.15rem 1.2rem;border-radius:var(--radius-sm);
  background:linear-gradient(165deg,rgba(15,26,49,.55),rgba(8,13,26,.45));border:1px solid var(--line)}
.c-item .ci{width:46px;height:46px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;color:#8fe0ff;
  background:linear-gradient(145deg,rgba(59,130,246,.18),rgba(56,225,255,.07));border:1px solid rgba(120,180,255,.22)}
.c-item .ci svg{width:22px;height:22px}
.c-item .ct b{display:block;font-size:.78rem;letter-spacing:.2em;color:var(--faint);font-weight:600;margin-bottom:.15rem}
.c-item .ct span,.c-item .ct a{font-size:.98rem;color:var(--ink-2);display:block}
.c-item .ct a:hover{color:#fff}
.form-card{border-radius:var(--radius);padding:clamp(1.6rem,3.5vw,2.4rem);
  background:linear-gradient(165deg,rgba(16,27,51,.72),rgba(9,15,29,.6));border:1px solid var(--line);
  box-shadow:var(--shadow-lg)}
.form-card h3{margin-bottom:1.6rem}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
.field{display:flex;flex-direction:column;gap:.45rem}
.field.full{grid-column:1/-1}
.field label{font-size:.86rem;font-weight:600;color:var(--ink-2)}
.field label em{color:var(--danger);font-style:normal;margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;background:rgba(6,11,22,.75);border:1px solid var(--line-2);border-radius:11px;
  padding:.78rem .95rem;color:var(--ink);font-size:.95rem;transition:border-color .25s,box-shadow .25s;
}
.field textarea{min-height:132px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--faint)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(56,225,255,.14);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#7ea6dd 50%),linear-gradient(135deg,#7ea6dd 50%,transparent 50%);background-position:calc(100% - 20px) 55%,calc(100% - 14px) 55%;background-size:6px 6px;background-repeat:no-repeat}
.field select option{background:#0b1322}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:1rem;margin-top:1.3rem}
.form-note{font-size:.78rem;color:var(--faint);line-height:1.6;max-width:52ch}
.form-ok{display:none;align-items:center;gap:.5rem;margin-top:1rem;padding:.9rem 1.1rem;border-radius:11px;
  background:rgba(52,217,178,.1);border:1px solid rgba(52,217,178,.35);color:#8cf0d8;font-size:.9rem}
.form-ok.on{display:flex}
.form-ok svg{width:18px;height:18px;flex:0 0 auto}
.mapph{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);height:260px;display:grid;place-items:center;
  background:linear-gradient(165deg,rgba(13,23,44,.7),rgba(7,12,23,.7))}
.mapph svg{width:64px;height:64px;color:var(--brand-2);opacity:.9;filter:drop-shadow(0 0 26px rgba(56,225,255,.6))}
.mapph .loc{position:relative;z-index:1;text-align:center;color:var(--muted);font-size:.9rem}
.mapph .loc b{display:block;color:#fff;font-size:1.05rem;margin-bottom:.2rem}

/* ---------- 21 页脚 ---------- */
.footer{position:relative;margin-top:clamp(3rem,6vw,5rem);background:linear-gradient(180deg,rgba(7,11,21,.4),#04060c);
  border-top:1px solid var(--line)}
.footer::before{content:'';position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(56,225,255,.7),transparent)}
.footer .f-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:2.6rem;padding-block:clamp(2.6rem,5vw,3.6rem)}
.f-brand p{font-size:.9rem;color:var(--muted);margin-top:1rem;max-width:34ch}
.f-brand .f-lang{display:flex;gap:.8rem;margin-top:1.2rem}
.f-brand .f-lang a{font-size:.85rem;color:var(--muted);border:1px solid var(--line);padding:.28rem .8rem;border-radius:8px;transition:.2s}
.f-brand .f-lang a.on,.f-brand .f-lang a:hover{color:#fff;border-color:var(--brand-2)}
.f-col h4{font-size:.82rem;letter-spacing:.24em;text-transform:uppercase;color:var(--faint);margin-bottom:1.1rem;font-weight:700}
.f-col li{margin-bottom:.55rem}
.f-col li a{font-size:.92rem;color:var(--muted);transition:color .2s,padding-left .2s}
.f-col li a:hover{color:#fff;padding-left:4px}
.f-col .f-addr li{display:flex;gap:.6rem;color:var(--muted);font-size:.9rem;align-items:flex-start}
.f-col .f-addr svg{width:16px;height:16px;flex:0 0 auto;margin-top:.3rem;color:var(--brand-2)}
.f-col .f-addr a{color:var(--muted)}
.f-col .f-addr a:hover{color:#fff}
.f-bottom{border-top:1px solid var(--line);padding-block:1.3rem;display:flex;flex-wrap:wrap;gap:.8rem 2rem;align-items:center;justify-content:space-between}
.f-bottom p{font-size:.82rem;color:var(--faint)}
.f-bottom .icp a{color:var(--faint);transition:color .2s}
.f-bottom .icp a:hover{color:var(--ink-2)}

/* ---------- 22 工具类 / 动画 ---------- */
#toTop{position:fixed;right:22px;bottom:22px;z-index:800;width:46px;height:46px;border-radius:13px;
  display:grid;place-items:center;background:rgba(12,20,38,.85);border:1px solid var(--line-2);
  color:#cfe9ff;opacity:0;pointer-events:none;transform:translateY(12px);transition:.3s var(--ease);
  backdrop-filter:blur(8px)}
#toTop.on{opacity:1;pointer-events:auto;transform:none}
#toTop:hover{border-color:var(--brand-2);box-shadow:var(--shadow-glow)}
#toTop svg{width:18px;height:18px}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease);
  transition-delay:var(--d,0s)}
.reveal.in{opacity:1;transform:none}
.reveal-l{opacity:0;transform:translateX(-26px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:var(--d,0s)}
.reveal-l.in{opacity:1;transform:none}
.reveal-r{opacity:0;transform:translateX(26px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:var(--d,0s)}
.reveal-r.in{opacity:1;transform:none}
.reveal-zoom{opacity:0;transform:scale(.94);transition:opacity .7s var(--ease),transform .7s var(--ease);transition-delay:var(--d,0s)}
.reveal-zoom.in{opacity:1;transform:none}
@keyframes pulse{0%,100%{opacity:.35;transform:scale(1)}50%{opacity:.9;transform:scale(1.08)}}
@keyframes drop{0%{transform:translateY(-8px);opacity:0}45%{opacity:1}100%{transform:translateY(8px);opacity:0}}
@keyframes sheen{0%{transform:translateX(-100%)}60%,100%{transform:translateX(100%)}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.floaty{animation:floaty 6s ease-in-out infinite}

/* 标题下沿发光线（section 之间视觉点缀） */
.sec-line{position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(120,170,255,.25) 30%,rgba(120,170,255,.25) 70%,transparent)}

/* 语言切换胶囊 */
.langpill{display:inline-flex;align-items:center;border:1px solid var(--line-2);border-radius:999px;overflow:hidden;background:rgba(120,170,255,.05)}
.langpill a{padding:.26rem .72rem;font-size:.8rem;font-weight:700;color:var(--muted);transition:.2s;line-height:1.5}
.langpill a.on{color:#06121f;background:var(--grad)}
.langpill a:hover:not(.on){color:#fff}

/* 能力跑马灯 */
.ticker{overflow:hidden;border-block:1px solid var(--line);background:linear-gradient(180deg,rgba(9,14,26,.7),rgba(6,10,19,.7));position:relative}
.ticker-track{display:flex;width:max-content;animation:tick 36s linear infinite}
.ticker:hover .ticker-track{animation-play-state:paused}
.ticker-track .grp{display:flex;align-items:center;flex:0 0 auto}
.ticker-track span{display:inline-flex;align-items:center;gap:.55rem;padding:.95rem 1.6rem;white-space:nowrap;color:var(--muted);font-weight:600;font-size:.9rem;letter-spacing:.06em}
.ticker-track span::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 8px var(--brand-2);opacity:.85}
@keyframes tick{to{transform:translateX(-50%)}}

/* 内页带数值的徽标组 */
.num-chip{display:inline-flex;flex-direction:column;gap:.15rem;padding:.9rem 1.1rem;min-width:150px;
  border-radius:var(--radius-sm);border:1px solid var(--line);background:rgba(120,170,255,.05)}
.num-chip b{font-size:1.7rem;font-weight:800;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.num-chip span{font-size:.78rem;color:var(--muted)}

/* 线性图标（配合 <use> 雪碧图） */
.i{fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto;vertical-align:middle}

/* ---------- 23 响应式 ---------- */
@media (max-width:1180px){
  .nav ul{gap:1.15rem}
  .header .wrap{gap:1.1rem}
  .logo .brand-txt .zh{display:none}
}
@media (max-width:1080px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step+.step::before{display:none}
  .news-grid,.case{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-trust{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .arch-layer{grid-template-columns:112px 1fr}
  .arch-join{margin-left:112px}
  .footer .f-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .g2,.g3{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .srow{grid-template-columns:1fr}
  .srow.flip .srow-art{order:0}
  .contact-grid{grid-template-columns:1fr}
  .nav{position:fixed;inset:0;background:rgba(4,7,14,.97);backdrop-filter:blur(20px);
    flex-direction:column;justify-content:center;gap:2rem;opacity:0;pointer-events:none;transition:opacity .3s}
  body.nav-open .nav{opacity:1;pointer-events:auto}
  .nav ul{flex-direction:column;gap:1.4rem}
  .nav a.nlink{font-size:1.35rem}
  .nav a.nlink::after{display:none}
  .nav .actions{flex-direction:column;gap:1rem}
  .burger{display:block}
  .nav-cta{display:inline-flex}
  .footer .f-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  .wrap{width:calc(100% - 2.2rem)}
  .hero-trust{grid-template-columns:1fr 1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .g4{grid-template-columns:1fr 1fr}
  .news-grid,.case{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .arch-layer{grid-template-columns:1fr;gap:.5rem}
  .arch-join{margin-left:0;height:22px}
  .hero{min-height:auto}
  .hero .chiprow{display:none}
  .footer .f-bottom{flex-direction:column;align-items:flex-start}
}

/* ---------- 24 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .reveal,.reveal-l,.reveal-r,.reveal-zoom{opacity:1;transform:none}
}