:root{
  --navy:#0b2545;--blue:#1466d8;--blue-2:#3d8bff;--accent:#ff7a1a;
  --ink:#122033;--muted:#5a6b80;--line:#e4ecf7;--bg:#f6f9ff;--white:#fff;
  --radius:14px;--shadow:0 10px 30px rgba(20,102,216,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);line-height:1.75;background:var(--white);-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
.container{max-width:1160px;margin:0 auto;padding:0 24px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,37,69,.93);backdrop-filter:saturate(150%) blur(8px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:19px;letter-spacing:.3px}
.brand .mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--blue-2),var(--accent));display:flex;align-items:center;justify-content:center;font-size:15px;color:#fff;font-weight:800}
.nav ul{display:flex;gap:24px;list-style:none}
.nav ul a{color:#cfe0ff;font-size:15px;opacity:.9;transition:.2s}
.nav ul a:hover{color:#fff;opacity:1}
.nav .cta{background:var(--accent);color:#fff;padding:9px 16px;border-radius:8px;font-size:14px;font-weight:600}
.nav .cta:hover{background:#ff8c3a}
.burger{display:none;background:none;border:0;color:#fff;font-size:22px;cursor:pointer}

/* hero */
.hero{background:linear-gradient(135deg,#0b2545 0%,#1466d8 62%,#4a93ff 100%);color:#fff;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-130px;top:-130px;width:440px;height:440px;border-radius:50%;background:rgba(255,255,255,.06)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;padding:92px 24px 100px;position:relative;z-index:1}
.hero h1{font-size:clamp(30px,4.4vw,50px);line-height:1.22;font-weight:800;letter-spacing:.5px;margin-bottom:18px}
.hero .lead{font-size:17px;color:#d9e7ff;max-width:560px;margin-bottom:30px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 26px;border-radius:10px;font-weight:600;font-size:15px;transition:.22s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#ff8c3a;transform:translateY(-2px)}
.btn-ghost{border:1px solid rgba(255,255,255,.42);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.hero-card{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);border-radius:18px;padding:26px 26px 20px}
.hero-card h3{font-size:13px;color:#cfe0ff;font-weight:700;letter-spacing:1.6px;margin-bottom:6px}
.hero-stat{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.18)}
.hero-stat:last-child{border-bottom:0}
.hero-stat b{font-size:26px;color:#fff;line-height:1.2}
.hero-stat span{font-size:14px;color:#d9e7ff;text-align:right}

/* section base */
section{padding:80px 0}
.alt{background:var(--bg)}
.sec-head{max-width:740px;margin-bottom:46px}
.eyebrow{color:var(--blue);font-weight:700;font-size:12.5px;letter-spacing:2px;margin-bottom:10px}
.sec-head h2{font-size:clamp(23px,3vw,34px);color:var(--navy);line-height:1.32;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:16px}

/* cards */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(262px,1fr))}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.25s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d3e2f7}
.card .ico{width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:21px;background:linear-gradient(135deg,#eaf2ff,#dbe9ff);margin-bottom:14px}
.card h3{font-size:18px;color:var(--navy);margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px}
.tag{display:inline-block;background:#eaf2ff;color:var(--blue);font-size:12px;font-weight:700;padding:3px 11px;border-radius:999px;margin-bottom:10px;letter-spacing:.5px}

/* clients */
.chips{display:flex;flex-wrap:wrap;gap:12px}
.chip{background:var(--white);border:1px solid var(--line);border-radius:999px;padding:11px 20px;font-size:15px;color:var(--navy);display:flex;align-items:center;gap:9px}
.chip i{width:8px;height:8px;border-radius:50%;background:var(--blue-2);display:inline-block}

/* steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:22px}
.step{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.step .n{width:32px;height:32px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;margin-bottom:14px}
.step h4{font-size:16px;color:var(--navy);margin-bottom:6px}
.step p{color:var(--muted);font-size:14px}

/* about */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.about-list{list-style:none;margin-top:20px}
.about-list li{position:relative;padding-left:26px;margin-bottom:12px;color:var(--ink);font-size:15px}
.about-list li::before{content:"\2713";position:absolute;left:0;color:var(--blue);font-weight:700}
.visual{border-radius:18px;padding:36px;background:linear-gradient(135deg,#0b2545,#1466d8);color:#fff;min-height:270px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.visual h3{font-size:20px}
.visual p{color:#d9e7ff;font-size:15px}

/* contact */
.contact{background:var(--navy);color:#fff}
.contact .sec-head h2{color:#fff}
.contact .sec-head p{color:#b9d0f7}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.info-item{margin-bottom:20px}
.info-item span{display:block;font-size:12.5px;color:#9fc0ef;letter-spacing:1.4px;margin-bottom:2px}
.info-item b{font-size:17px;font-weight:600}
.info-item b a{border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:1px}
.info-item b a:hover{border-bottom-color:#fff;color:#fff}
.contact-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:16px;padding:30px}

/* footer */
footer{background:#071a33;color:#8fabc9;padding:26px 0;font-size:13.5px}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}

/* responsive */
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;padding:66px 24px 74px}
  .about-grid,.contact-grid{grid-template-columns:1fr;gap:32px}
  .nav ul{display:none}
  .nav ul.show{display:flex;flex-direction:column;position:absolute;top:64px;right:24px;background:#0b2545;padding:16px 22px;border-radius:12px;gap:14px;border:1px solid rgba(255,255,255,.12)}
  .burger{display:block}
}
@media(max-width:520px){
  section{padding:58px 0}
  .hero h1{font-size:28px}
  .hero-btns .btn{flex:1;text-align:center}
}

/* ===== landing page extras ===== */
.sol-card{display:block;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s}
.sol-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d3e2f7}
.sol-card .arrow{color:var(--blue);font-weight:700}
ul.plain{list-style:none;margin-top:16px}
ul.plain li{position:relative;padding-left:22px;margin-bottom:10px;color:var(--muted);font-size:15px}
ul.plain li::before{content:"\25B8";position:absolute;left:0;color:var(--blue);font-weight:700}
.faq details{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;color:var(--navy);font-size:16px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";display:inline-block;width:18px;color:var(--blue);font-weight:700}
.faq details[open] summary::before{content:"\2212"}
.faq details p{margin-top:10px;color:var(--muted);font-size:14.5px;padding-left:18px}
.policy-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.policy{background:var(--white);border-left:3px solid var(--blue);border-radius:10px;padding:18px 20px;font-size:14.5px;color:var(--ink)}
.policy b{color:var(--navy);display:block;margin-bottom:4px;font-size:15px}

/* ===== trust strip ===== */
.trust{background:var(--white);border-bottom:1px solid var(--line)}
.trust-inner{display:flex;align-items:center;gap:28px;padding:24px 0;flex-wrap:wrap}
.trust-lead{font-size:12.5px;font-weight:700;color:var(--blue);letter-spacing:1.6px;white-space:nowrap}
.trust-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px 24px;flex:1}
.trust-item{border-left:2px solid var(--line-2);padding:2px 0 2px 14px}
.trust-item b{display:block;font-size:14.5px;color:var(--navy);font-weight:600;line-height:1.5}
.trust-item span{font-size:12.5px;color:var(--muted)}

/* ===== results ===== */
.results{background:linear-gradient(135deg,#0d2b52,#1a4f8a);color:#fff}
.res-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px}
.res-item{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:14px;padding:24px 22px}
.res-item b{display:block;font-size:34px;font-weight:700;color:#fff;line-height:1.22}
.res-item span{font-size:13.5px;color:#c9ddf8}

@media(max-width:640px){
  .trust-inner{gap:16px}
  .trust-lead{white-space:normal}
  .res-item b{font-size:28px}
}