@charset "utf-8";
:root{
  --blue:#0b5cd6;
  --blue-d:#083c94;
  --navy:#062a63;
  --cyan:#0a9b9b;
  --ink:#16202f;
  --gray:#5c6879;
  --gray-l:#8a94a6;
  --line:#e3e8f0;
  --bg:#ffffff;
  --bg-soft:#f5f7fb;
  --bg-deep:#05204a;
  --radius:10px;
  --maxw:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.75;
  -webkit-font-smoothing:antialiased;font-size:15px;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.nav{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);
}
.nav-in{display:flex;align-items:center;height:62px;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:.5px;white-space:nowrap}
.logo-mark{width:28px;height:28px;border-radius:7px;background:linear-gradient(135deg,var(--blue),var(--cyan));
  display:grid;place-items:center;color:#fff;font-size:15px;font-weight:700}
.nav ul{display:flex;gap:2px;list-style:none;margin-left:auto;flex-wrap:wrap}
.nav ul a{
  display:block;padding:7px 13px;border-radius:6px;font-size:14px;color:var(--gray);
  transition:.18s;white-space:nowrap;
}
.nav ul a:hover{color:var(--blue);background:#eef3fc}
.nav-cta{
  margin-left:10px;padding:8px 18px;border-radius:6px;background:var(--blue);color:#fff;
  font-size:14px;transition:.18s;white-space:nowrap;
}
.nav-cta:hover{background:var(--blue-d)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);
  border-radius:6px;padding:6px 10px;cursor:pointer;color:var(--ink);font-size:14px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#062a63 0%,#0a4a9e 55%,#0b5cd6 100%);color:#fff}
.hero-bg{position:absolute;inset:0;opacity:.5}
.hero-in{position:relative;padding:86px 0 74px;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:2px;
  color:#9ec5ff;border:1px solid rgba(255,255,255,.28);border-radius:20px;padding:5px 14px;margin-bottom:22px;
}
.hero h1{font-size:40px;line-height:1.28;font-weight:700;letter-spacing:.5px;margin-bottom:16px}
.hero h1 span{color:#7fd6d6}
.hero-lead{font-size:16px;color:#c9dcf7;max-width:620px;margin-bottom:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.hero-tags span{
  font-size:13px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  padding:6px 13px;border-radius:6px;color:#e6f0ff;
}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 26px;border-radius:6px;font-size:15px;transition:.18s;border:1px solid transparent}
.btn-p{background:#fff;color:var(--navy);font-weight:600}
.btn-p:hover{background:#e8f0ff}
.btn-g{border-color:rgba(255,255,255,.45);color:#fff}
.btn-g:hover{background:rgba(255,255,255,.12)}
.hero-fig{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:14px;padding:18px;backdrop-filter:blur(4px);
}
.hero-fig figcaption{font-size:12px;color:#a9c6ee;margin-top:10px;text-align:center;letter-spacing:.5px}

/* 指标条 */
.metrics{border-top:1px solid rgba(255,255,255,.14);position:relative}
.metrics-in{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.16)}
.metric{background:#0a4595;padding:22px 26px}
.metric b{display:block;font-size:26px;line-height:1.3;font-weight:700}
.metric b i{font-style:normal;font-size:14px;font-weight:400;margin-left:3px}
.metric small{display:block;font-size:13px;color:#a9c6ee;margin-top:4px}

/* ---------- 通用区块 ---------- */
section{padding:76px 0}
.sec-soft{background:var(--bg-soft)}
.sec-head{max-width:820px;margin-bottom:44px}
.sec-tag{
  display:inline-block;font-size:12px;letter-spacing:2px;color:var(--blue);
  border-left:3px solid var(--blue);padding-left:10px;margin-bottom:14px;font-weight:600;
}
.sec-head h2{font-size:29px;line-height:1.4;font-weight:700;margin-bottom:12px;letter-spacing:.3px}
.sec-head p{color:var(--gray);font-size:15px}
.sec-head.dark h2,.sec-head.dark p{color:#fff}
.sec-head.dark p{color:#a9c6ee}

/* ---------- 定义 ---------- */
.def-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
.def-body p{margin-bottom:16px;color:#3a4557}
.def-body p strong{color:var(--ink)}
.quote{
  border-left:3px solid var(--blue);background:#f7f9fd;padding:16px 20px;margin:20px 0;
  font-size:14.5px;color:#37455c;border-radius:0 8px 8px 0;
}
.def-side{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px}
.timeline{list-style:none;position:relative;padding-left:22px}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--blue),var(--cyan))}
.timeline li{position:relative;padding-bottom:22px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{
  content:"";position:absolute;left:-22px;top:8px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--blue);
}
.timeline b{display:block;font-size:15px;margin-bottom:3px}
.timeline span{font-size:13.5px;color:var(--gray)}

/* 三大特征 */
.feat3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.f3{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px;transition:.2s}
.f3:hover{border-color:#bcd2f7;box-shadow:0 6px 20px rgba(11,92,214,.08);transform:translateY(-2px)}
.f3 .n{font-size:13px;font-weight:700;color:var(--blue);letter-spacing:1px;margin-bottom:8px}
.f3 h4{font-size:17px;margin-bottom:8px}
.f3 p{font-size:14px;color:var(--gray)}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pain{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px;position:relative;overflow:hidden}
.pain::after{content:"";position:absolute;left:0;top:0;width:3px;height:100%;background:var(--blue);opacity:.75}
.pain h4{font-size:16.5px;margin-bottom:9px;padding-left:8px}
.pain .q{font-size:14px;color:var(--gray);padding-left:8px;margin-bottom:12px}
.pain .a{
  font-size:13.5px;color:#2f6fd0;background:#f2f6fe;border-radius:6px;padding:9px 12px;margin-left:8px;
}
.pain .a b{color:var(--blue-d)}

/* ---------- 架构图 ---------- */
.arch-fig{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px}
.arch-fig figcaption{font-size:13px;color:var(--gray);text-align:center;margin-top:16px}
.arch-note{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px}
.an{background:#f7f9fd;border-radius:8px;padding:16px;border:1px solid #edf1f7}
.an b{display:block;font-size:14.5px;margin-bottom:5px;color:var(--navy)}
.an p{font-size:13px;color:var(--gray)}

/* ---------- 功能模块 ---------- */
.mod-group{margin-bottom:52px}
.mod-group:last-child{margin-bottom:0}
.mod-ghead{display:flex;align-items:baseline;gap:14px;margin-bottom:22px;flex-wrap:wrap}
.mod-ghead h3{font-size:21px;font-weight:700}
.mod-ghead span{font-size:13.5px;color:var(--gray)}
.cards{display:grid;gap:18px}
.c2{grid-template-columns:repeat(2,1fr)}
.c3{grid-template-columns:repeat(3,1fr)}
.c4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px;transition:.2s}
.card:hover{border-color:#bcd2f7;box-shadow:0 8px 24px rgba(11,92,214,.09)}
.card h4{font-size:16.5px;margin-bottom:10px;display:flex;align-items:center;gap:9px}
.card h4 i{
  width:24px;height:24px;flex:none;border-radius:6px;background:#eef3fc;color:var(--blue);
  display:grid;place-items:center;font-style:normal;font-size:13px;font-weight:700;
}
.card p{font-size:14px;color:var(--gray);margin-bottom:10px}
.card ul{list-style:none;font-size:13.5px;color:#48566b}
.card ul li{position:relative;padding-left:15px;margin-bottom:5px}
.card ul li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:50%;background:var(--cyan)}

/* 业务系统表格式列表 */
.sys-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.sys{background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px 18px 16px;transition:.2s}
.sys:hover{border-color:#bcd2f7;box-shadow:0 6px 18px rgba(11,92,214,.08)}
.sys b{display:block;font-size:15px;margin-bottom:7px;color:var(--navy)}
.sys p{font-size:13px;color:var(--gray);line-height:1.7}

/* ---------- 技术特性 ---------- */
.tech{background:var(--bg-deep);color:#fff}
.tech .sec-tag{color:#7fd6d6;border-left-color:#7fd6d6}
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14);border-radius:10px;overflow:hidden}
.tc{background:#072755;padding:26px}
.tc b{display:block;font-size:16px;margin-bottom:9px;color:#fff}
.tc p{font-size:13.5px;color:#a9c6ee}

/* ---------- 案例 ---------- */
.case{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:26px}
.case-h{display:flex;align-items:center;gap:18px;padding:22px 28px;background:linear-gradient(90deg,#f2f6fe,#fff);border-bottom:1px solid var(--line);flex-wrap:wrap}
.case-h .place{
  font-size:13px;font-weight:700;color:#fff;background:var(--blue);
  padding:5px 12px;border-radius:20px;letter-spacing:.5px;
}
.case-h h3{font-size:19px;font-weight:700}
.case-h .meta{font-size:13px;color:var(--gray);margin-left:auto}
.case-b{display:grid;grid-template-columns:1fr 1fr;gap:0}
.case-l{padding:26px 28px;border-right:1px solid var(--line)}
.case-r{padding:26px 28px}
.case-sub{font-size:13px;font-weight:700;color:var(--blue);letter-spacing:1px;margin-bottom:14px}
.case-l p{font-size:14px;color:#3a4557;margin-bottom:14px}
.mod-list{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}
.mod-list li{
  list-style:none;font-size:13.5px;background:#f7f9fd;border:1px solid #edf1f7;
  border-radius:6px;padding:8px 12px;color:#37455c;
}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
.stat{background:#f7f9fd;border-radius:8px;padding:14px;text-align:center}
.stat b{display:block;font-size:20px;color:var(--blue-d)}
.stat span{font-size:12.5px;color:var(--gray)}

/* ---------- 部署 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:s}
.step{position:relative;padding-top:38px}
.step::before{
  counter-increment:s;content:counter(s);position:absolute;top:0;left:0;
  width:28px;height:28px;border-radius:50%;background:var(--blue);color:#fff;
  display:grid;place-items:center;font-size:14px;font-weight:700;
}
.step::after{content:"";position:absolute;top:14px;left:34px;right:0;height:1px;background:var(--line)}
.step:last-child::after{display:none}
.step b{display:block;font-size:15px;margin-bottom:5px}
.step p{font-size:13px;color:var(--gray)}

/* ---------- FAQ ---------- */
.faq{max-width:900px}
.qa{border-bottom:1px solid var(--line)}
.qa-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;padding:18px 34px 18px 0;
  font-size:16px;font-weight:600;color:var(--ink);position:relative;font-family:inherit;
}
.qa-q::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:20px;color:var(--blue);font-weight:400;transition:.2s;
}
.qa.open .qa-q::after{content:"−"}
.qa-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.qa-a div{padding:0 34px 18px 0;font-size:14px;color:var(--gray)}

/* ---------- 联系 ---------- */
.contact{background:linear-gradient(160deg,#062a63,#0b5cd6);color:#fff}
.contact .sec-tag{color:#7fd6d6;border-left-color:#7fd6d6}
.ct-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start}
.ct-list{list-style:none}
.ct-list li{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.16)}
.ct-list li:first-child{border-top:1px solid rgba(255,255,255,.16)}
.ct-k{width:78px;flex:none;font-size:14px;color:#9ec5ff}
.ct-v{font-size:15.5px;color:#fff}
.ct-v a:hover{color:#7fd6d6}
.ct-form{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:26px}
.ct-form h4{font-size:17px;margin-bottom:6px}
.ct-form p{font-size:13px;color:#a9c6ee;margin-bottom:18px}
.ct-form label{display:block;font-size:13px;color:#c9dcf7;margin-bottom:6px}
.ct-form input,.ct-form textarea{
  width:100%;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);
  border-radius:6px;padding:10px 12px;color:#fff;font-size:14px;font-family:inherit;margin-bottom:14px;
}
.ct-form input::placeholder,.ct-form textarea::placeholder{color:#8fb0dc}
.ct-form input:focus,.ct-form textarea:focus{outline:none;border-color:#7fd6d6}
.ct-form textarea{resize:vertical;min-height:82px}
.ct-form button{
  width:100%;background:#fff;color:var(--navy);border:none;border-radius:6px;
  padding:12px;font-size:15px;font-weight:600;cursor:pointer;font-family:inherit;transition:.18s;
}
.ct-form button:hover{background:#e8f0ff}

/* ---------- 页脚 ---------- */
footer{background:#041a3d;color:#8ba4c9;padding:34px 0;font-size:13px}
.ft-in{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.ft-links{display:flex;gap:20px;flex-wrap:wrap}
.ft-links a:hover{color:#7fd6d6}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .hero-in{grid-template-columns:1fr;gap:36px}
  .hero-fig{max-width:560px}
  .def-grid{grid-template-columns:1fr;gap:32px}
  .c4,.sys-grid{grid-template-columns:repeat(2,1fr)}
  .arch-note{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:860px){
  .nav ul{display:none;position:absolute;top:62px;left:0;right:0;background:#fff;
    flex-direction:column;padding:10px 16px;border-bottom:1px solid var(--line);gap:0}
  .nav ul.show{display:flex}
  .nav ul a{padding:11px 6px;border-bottom:1px solid #f0f3f8}
  .nav-toggle{display:block}
  .nav-cta{display:none}
  .hero{padding-top:0}
  .hero-in{padding:56px 0 44px}
  .hero h1{font-size:29px}
  .metrics-in{grid-template-columns:repeat(2,1fr)}
  .pain-grid,.c3,.feat3,.tech-grid{grid-template-columns:1fr}
  .c2,.sys-grid,.mod-list,.arch-note{grid-template-columns:1fr}
  .case-b{grid-template-columns:1fr}
  .case-l{border-right:none;border-bottom:1px solid var(--line)}
  .ct-grid{grid-template-columns:1fr;gap:32px}
  section{padding:54px 0}
  .sec-head h2{font-size:23px}
  .steps{grid-template-columns:1fr}
  .step::after{display:none}
}