:root{
  --blue:#0052D9;
  --blue-600:#0046BE;
  --blue-700:#003AA0;
  --blue-light:#E8F3FF;
  --blue-lighter:#F4F9FF;
  --ink:#0A2540;
  --ink-2:#1A2B4A;
  --gray:#5A6B85;
  --gray-2:#8A98AE;
  --line:#E6ECF4;
  --bg:#FFFFFF;
  --bg-alt:#F7F9FC;
  --green:#00A56A;
  --radius:16px;
  --shadow-sm:0 2px 8px rgba(10,37,64,.06);
  --shadow:0 12px 32px rgba(10,37,64,.10);
  --shadow-blue:0 16px 40px rgba(0,82,217,.18);
  --maxw:1160px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink-2);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:88px 0;scroll-margin-top:72px}
section.alt{background:var(--bg-alt)}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--blue);background:var(--blue-light);padding:6px 14px;border-radius:999px;margin-bottom:18px}
h2.sec{font-size:clamp(26px,3.4vw,40px);font-weight:800;color:var(--ink);letter-spacing:-.01em;line-height:1.2}
.sec-sub{margin-top:14px;font-size:17px;color:var(--gray);max-width:680px}
.center{text-align:center}
.center .sec-sub{margin-left:auto;margin-right:auto}

/* ============ 导航 ============ */
header.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{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;color:var(--ink)}
.brand .logo{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--blue),#3E8BFF);display:grid;place-items:center;color:#fff;font-size:16px;font-weight:900}
.nav-links{display:flex;gap:4px;align-items:center}
.nav-links a{padding:8px 14px;border-radius:8px;font-size:15px;color:var(--ink-2);font-weight:500;transition:.2s}
.nav-links a:hover{background:var(--blue-lighter);color:var(--blue)}
.nav-links a.active{color:var(--blue);background:var(--blue-light)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:10px;font-weight:600;font-size:15px;transition:.2s;cursor:pointer;border:none}
.btn-primary{background:var(--blue);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--blue-600);box-shadow:var(--shadow-blue);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--blue);border:1px solid var(--blue)}
.btn-ghost:hover{background:var(--blue-light)}
.btn-lg{padding:13px 26px;font-size:16px}
.nav-cta{display:flex;gap:10px;align-items:center}
.menu-btn{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--ink)}

/* ============ 首页 Hero ============ */
.hero{padding:72px 0 64px;background:radial-gradient(1200px 480px at 80% -10%,var(--blue-lighter),transparent 60%),linear-gradient(180deg,#fff,var(--bg-alt))}
.hero-grid{display:grid;grid-template-columns:1.05fr 1.15fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(32px,4.6vw,54px);font-weight:900;line-height:1.08;letter-spacing:-.02em;color:var(--ink)}
.hero h1 .hl{background:linear-gradient(120deg,var(--blue),#3E8BFF);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p.lead{margin-top:22px;font-size:18px;color:var(--gray);max-width:520px}
.hero-cta{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{margin-top:40px;display:flex;gap:36px;flex-wrap:wrap}
.hero-stats .s b{display:block;font-size:26px;font-weight:800;color:var(--ink)}
.hero-stats .s span{font-size:14px;color:var(--gray-2)}

/* 界面仿真 */
.mock{border-radius:18px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);background:#fff}
.mock-bar{display:flex;align-items:center;gap:6px;padding:10px 14px;background:#F2F5FA;border-bottom:1px solid var(--line)}
.mock-bar i{width:11px;height:11px;border-radius:50%;display:inline-block}
.dot-r{background:#FF5F57}.dot-y{background:#FEBC2E}.dot-g{background:#28C840}
.hero-shot-img{display:block;width:100%;height:auto}
.m-side{background:var(--blue-lighter);padding:14px;border-right:1px solid var(--line)}
.m-side .t{font-size:12px;font-weight:700;color:var(--blue);margin:6px 0 10px}
.m-side .item{font-size:13px;color:var(--ink-2);padding:7px 10px;border-radius:8px;margin-bottom:6px;background:#fff;border:1px solid var(--line)}
.m-side .item.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.m-chat{padding:16px;display:flex;flex-direction:column;gap:12px}
.bubble{max-width:84%;padding:10px 13px;border-radius:12px;font-size:13px;line-height:1.5}
.bubble.u{align-self:flex-end;background:var(--blue);color:#fff;border-bottom-right-radius:3px}
.bubble.a{align-self:flex-start;background:#F1F4F9;color:var(--ink-2);border-bottom-left-radius:3px}
.m-out{padding:14px;border-left:1px solid var(--line);background:#FAFBFE}
.m-out .t{font-size:12px;font-weight:700;color:var(--green);margin-bottom:10px}
.m-out .file{font-size:12px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 10px;margin-bottom:8px;color:var(--ink-2)}
.m-out .file b{color:var(--blue)}

/* ============ 理念带 / 三大核心能力 ============ */
.belief{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin-top:8px}
.belief .big{font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--ink);line-height:1.3}
.belief .big .hl{color:var(--blue)}
.belief p{color:var(--gray);font-size:16px;margin-top:16px}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.pillar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.pillar::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:linear-gradient(90deg,var(--blue),#3E8BFF)}
.pillar:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0fb}
.pillar .num{font-size:13px;font-weight:800;color:var(--blue);letter-spacing:.06em}
.pillar h3{font-size:21px;margin:8px 0 8px;color:var(--ink)}
.pillar p{font-size:14.5px;color:var(--gray)}

/* ============ 对比表 ============ */
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:44px}
.cmp-col{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:#fff}
.cmp-col.wb{border-color:var(--blue);box-shadow:var(--shadow-blue);background:linear-gradient(180deg,#fff,var(--blue-lighter))}
.cmp-col h3{font-size:20px;margin-bottom:6px}
.cmp-col.wb h3{color:var(--blue)}
.cmp-col .tag{font-size:13px;color:var(--gray-2)}
.cmp ul{list-style:none;margin-top:18px;display:flex;flex-direction:column;gap:13px}
.cmp li{display:flex;gap:10px;font-size:15px;align-items:flex-start}
.cmp li .ic{flex:0 0 20px;height:20px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:800;color:#fff;margin-top:1px}
.cmp .no .ic{background:#C7D0DE}
.cmp .yes .ic{background:var(--green)}

/* ============ 卡片网格 ============ */
.grid{display:grid;gap:22px;margin-top:44px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.25s;box-shadow:var(--shadow-sm)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0fb}
.card .ico{width:46px;height:46px;border-radius:12px;background:var(--blue-light);display:grid;place-items:center;font-size:22px;margin-bottom:16px}
.card h3{font-size:18px;margin-bottom:8px;color:var(--ink)}
.card p{font-size:14.5px;color:var(--gray)}
.card .meta{font-size:12.5px;color:var(--gray-2);margin-top:auto;display:block}
.card a.more{color:var(--blue);font-weight:600;font-size:14px;margin-top:12px;display:inline-flex;align-items:center;gap:4px}
.card a.more:hover{text-decoration:underline}
.card-link{transition:.25s}
.card-link:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0fb}

/* ============ 工作模式 ============ */
.modes{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.mode{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;position:relative;overflow:hidden}
.mode::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:linear-gradient(90deg,var(--blue),#3E8BFF)}
.mode .k{font-size:13px;font-weight:800;color:var(--blue);letter-spacing:.06em}
.mode h3{font-size:22px;margin:8px 0 6px;color:var(--ink)}
.mode .en{font-size:13px;color:var(--gray-2);margin-bottom:14px}
.mode p{font-size:14.5px;color:var(--gray)}

/* ============ 场景 Tab ============ */
.tabs{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:36px 0 30px}
.tab{padding:10px 20px;border-radius:999px;border:1px solid var(--line);background:#fff;font-weight:600;font-size:15px;cursor:pointer;transition:.2s;color:var(--ink-2)}
.tab.on{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:var(--shadow-sm)}
.tab:hover:not(.on){border-color:var(--blue);color:var(--blue)}
.tabpane{display:none}
.tabpane.on{display:block;animation:fade .4s ease}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.scene-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scene{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;transition:.2s}
.scene:hover{box-shadow:var(--shadow);border-color:#cfe0fb}
.scene h4{font-size:16px;color:var(--ink);margin-bottom:6px}
.scene p{font-size:14px;color:var(--gray)}

/* ============ 案例 ============ */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.case{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:0;overflow:hidden;display:flex;flex-direction:column;transition:.25s;box-shadow:var(--shadow-sm)}
.case:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0fb}
.case .top{padding:20px 22px 14px;background:linear-gradient(180deg,var(--blue-lighter),#fff)}
.case .ind{display:inline-block;font-size:12px;font-weight:700;color:var(--blue);background:#fff;border:1px solid #cfe0fb;padding:4px 10px;border-radius:999px}
.case h3{font-size:18px;margin:12px 0 8px;color:var(--ink);line-height:1.35}
.case .body{padding:4px 22px 18px;font-size:14.5px;color:var(--gray);flex:1}
.case .metric{margin:0 22px 20px;padding:12px 14px;background:var(--bg-alt);border-radius:10px;border:1px solid var(--line)}
.case .metric b{color:var(--blue);font-size:15px}
.case .metric span{display:block;font-size:12.5px;color:var(--gray-2);margin-top:2px}

/* ============ 行业方案 ============ */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px}
.ind{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.2s}
.ind:hover{box-shadow:var(--shadow);border-color:#cfe0fb;transform:translateY(-3px)}
.ind .ico{font-size:26px;margin-bottom:12px}
.ind h3{font-size:17px;color:var(--ink);margin-bottom:8px}
.ind p{font-size:14px;color:var(--gray)}
.ind .tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.ind .tags span{font-size:12px;color:var(--blue);background:var(--blue-light);padding:4px 10px;border-radius:999px}

/* ============ 工作流 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:44px;counter-reset:step}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px}
.step::before{counter-increment:step;content:counter(step);position:absolute;top:-16px;left:22px;width:36px;height:36px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;display:grid;place-items:center;box-shadow:var(--shadow-sm)}
.step h4{margin-top:10px;font-size:17px;color:var(--ink)}
.step p{margin-top:8px;font-size:14px;color:var(--gray)}

/* ============ 生态 ============ */
.eco{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.eco .card .ico{background:linear-gradient(135deg,var(--blue),#3E8BFF);color:#fff}

/* ============ 安全 ============ */
.sec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.sec-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.sec-card .ico{font-size:24px;margin-bottom:10px}
.sec-card h4{font-size:16px;color:var(--ink);margin-bottom:6px}
.sec-card p{font-size:13.5px;color:var(--gray)}

/* ============ 角色 ============ */
.roles{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:36px}
.role{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 16px;text-align:center;transition:.2s}
.role:hover{box-shadow:var(--shadow);border-color:#cfe0fb;transform:translateY(-3px)}
.role .e{font-size:26px}
.role h4{font-size:15px;color:var(--ink);margin:8px 0 4px}
.role p{font-size:12.5px;color:var(--gray)}

/* ============ 子页页头 ============ */
.page-hero{padding:56px 0 44px;background:radial-gradient(900px 360px at 85% -20%,var(--blue-lighter),transparent 60%),linear-gradient(180deg,#fff,var(--bg-alt))}
.breadcrumb{font-size:14px;color:var(--gray-2);margin-bottom:14px}
.breadcrumb a:hover{color:var(--blue)}
.page-hero h1{font-size:clamp(28px,4vw,44px);font-weight:900;color:var(--ink);letter-spacing:-.01em;line-height:1.15}
.page-hero p{margin-top:16px;font-size:18px;color:var(--gray);max-width:680px}

/* ============ CTA ============ */
.cta{background:linear-gradient(120deg,var(--blue-700),var(--blue) 55%,#3E8BFF);color:#fff;border-radius:24px;padding:56px 40px;text-align:center;position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;width:380px;height:380px;border-radius:50%;background:rgba(255,255,255,.08);top:-160px;right:-100px}
.cta h2{font-size:clamp(26px,3.4vw,38px);font-weight:900;position:relative}
.cta p{margin-top:14px;font-size:17px;opacity:.92;position:relative;max-width:560px;margin-left:auto;margin-right:auto}
.cta .hero-cta{justify-content:center;position:relative;margin-top:28px}
.cta .btn-primary{background:#fff;color:var(--blue)}
.cta .btn-primary:hover{background:#EAF2FF}
.cta .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.cta .btn-ghost:hover{background:rgba(255,255,255,.12)}

/* ============ 页脚 ============ */
footer{background:var(--ink);color:#C9D4E5;padding:56px 0 32px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.foot-grid h5{color:#fff;font-size:15px;margin-bottom:14px}
.foot-grid a{display:block;font-size:14px;color:#A9B6CC;padding:5px 0;transition:.2s}
.foot-grid a:hover{color:#fff}
.foot-brand p{font-size:14px;color:#A9B6CC;margin-top:12px;max-width:280px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:22px;font-size:13px;color:#8A98AE;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.foot-bottom .beian{color:#8A98AE;text-decoration:none;font-size:13px;transition:color .2s}
.foot-bottom .beian:hover{color:#fff}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(24px);transition:.6s cubic-bezier(.2,.7,.3,1)}
.reveal.show{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}

/* ============ 响应式 ============ */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .belief{grid-template-columns:1fr;gap:24px}
  .grid-3,.cases,.ind-grid,.scene-list,.modes,.eco,.sec-grid,.flow,.roles,.pillars{grid-template-columns:repeat(2,1fr)}
  .mock{min-height:auto}
  .m-out{display:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .foot-brand{grid-column:1 / -1}
}
@media (max-width:680px){
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:14px 24px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav-links.open{display:flex}
  .nav-links a{width:100%}
  .menu-btn{display:block}
  .nav-cta .btn-ghost{display:none}
  section{padding:64px 0}
  .grid-3,.cases,.ind-grid,.scene-list,.modes,.eco,.sec-grid,.flow,.cmp,.grid-2,.pillars{grid-template-columns:1fr}
  .roles{grid-template-columns:repeat(2,1fr)}
  .cmp{margin-top:28px}
  .hero-stats{gap:20px}
  .cta{padding:44px 22px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:24px}
  .foot-bottom{font-size:12px}
}
@media (max-width:480px){
  .wrap{padding:0 18px}
  section{padding:56px 0}
  .hero h1{font-size:clamp(28px,8.5vw,40px)}
  .pillar,.card{padding:22px}
  .cta{padding:40px 18px}
  .foot-grid{grid-template-columns:1fr;gap:22px}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ============ 加微信进群浮窗 ============ */
.wx-fab{position:fixed;right:24px;bottom:24px;z-index:900;font-family:inherit}
.wx-fab-btn{display:flex;align-items:center;gap:8px;background:var(--blue);color:#fff;border:none;border-radius:999px;padding:13px 20px;font-size:15px;font-weight:700;cursor:pointer;box-shadow:0 8px 24px rgba(0,82,217,.35);transition:transform .2s,box-shadow .2s;font-family:inherit}
.wx-fab-btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,82,217,.45)}
.wx-ico{font-size:18px;line-height:1}
.wx-pop{position:absolute;right:0;bottom:calc(100% + 14px);width:272px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 16px 40px rgba(20,40,80,.18);padding:20px 18px 16px;text-align:center;transform-origin:bottom right}
.wx-pop[hidden]{display:none}
.wx-close{position:absolute;top:8px;right:10px;border:none;background:none;font-size:20px;line-height:1;color:#9aa7b8;cursor:pointer;padding:2px 6px}
.wx-close:hover{color:var(--ink)}
.wx-pop-h{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:12px;padding-right:14px}
.wx-qr{width:180px;height:180px;margin:0 auto 12px;border-radius:10px;display:block;background:#f4f6fa}
.wx-pop-t{font-size:13px;color:var(--ink-2);line-height:1.6;margin:0}
.wx-pop-t b{color:var(--blue)}
.wx-tip{font-size:11px;color:#9aa7b8;margin:8px 0 0}
.cta-wx{margin-top:14px;font-size:14px;color:var(--ink-2)}
.cta-wx a{color:var(--blue);font-weight:700;text-decoration:none;cursor:pointer}
.cta-wx a:hover{text-decoration:underline}
@media (max-width:560px){
  .wx-fab{right:14px;bottom:14px}
  .wx-fab-btn{padding:11px 15px;font-size:14px}
  .wx-label{display:none}
  .wx-pop{width:246px;right:-4px}
}