*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#fff;--ink:#0f1a2c;--ink-2:#3a4a63;--muted:#6b7a90;
  --line:#e5e9f0;--soft:#f4f7fb;
  --brand:#0a4d8c;--brand-2:#1a73c4;--brand-deep:#072c52;--accent:#d92e2e;--gold:#ffcf66;
  --shadow:0 12px 40px rgba(10,40,80,.10);
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}img{display:block;max-width:100%}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.eng{font-family:"Barlow",sans-serif;letter-spacing:.04em}

/* topbar */
.topbar{background:var(--brand-deep);color:#c7d6ea;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:38px}
.topbar .left span{margin-right:18px;opacity:.85}
.topbar .right{display:flex;gap:18px}
.topbar .right a{opacity:.85;transition:.2s}.topbar .right a:hover{opacity:1;color:#fff}
.topbar .hotline{color:var(--gold);font-weight:700;font-family:"Barlow",sans-serif;font-size:14px}

/* header */
.header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);z-index:50}
.header .container{display:flex;align-items:center;justify-content:space-between;height:84px}
.logo{display:flex;align-items:center;gap:14px}
.logo .mark{width:48px;height:48px;border-radius:8px;background:url("../images/logo-mark.png") center/contain no-repeat;font-size:0;color:transparent;flex-shrink:0}
.foot .logo .mark{background-color:#fff;padding:4px;background-image:url("../images/logo-mark.png");background-size:80% auto;background-position:center;background-repeat:no-repeat}
.logo .name{font-weight:900;font-size:19px;color:var(--ink);letter-spacing:.5px}
.logo .sub{font-size:11px;color:var(--muted);letter-spacing:2px;text-transform:uppercase;font-family:"Barlow",sans-serif}
.nav{display:flex;gap:6px}
.nav a{padding:10px 18px;font-size:15px;font-weight:500;color:var(--ink-2);position:relative;transition:.2s}
.nav a:hover{color:var(--brand)}
.nav a.active{color:var(--brand);font-weight:700}
.nav a.active::after{content:"";position:absolute;left:18px;right:18px;bottom:-4px;height:3px;background:var(--brand);border-radius:2px}
.cta{padding:12px 24px;background:var(--brand);color:#fff;font-weight:600;border-radius:4px;font-size:14px;transition:.2s;box-shadow:0 6px 18px rgba(10,77,140,.25);display:inline-block}
.cta:hover{background:var(--brand-2);transform:translateY(-1px)}

/* hero */
.hero{position:relative;height:calc(100vh - 122px);min-height:560px;max-height:780px;overflow:hidden;background:#000}
.slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity 1s ease;background-size:cover;background-position:center}
.slide.on{opacity:1;pointer-events:auto}
.slide::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,44,82,.78) 0%,rgba(7,44,82,.45) 60%,rgba(7,44,82,.2) 100%)}
.slide-inner{position:relative;height:100%;display:flex;align-items:center}
.slide-inner .container{color:#fff}
.tag-en{display:inline-block;font-family:"Barlow",sans-serif;font-size:13px;letter-spacing:.4em;color:#7eb8ff;text-transform:uppercase;margin-bottom:18px;padding-left:48px;position:relative}
.tag-en::before{content:"";position:absolute;left:0;top:50%;width:36px;height:2px;background:#7eb8ff;transform:translateY(-50%)}
.slide h1{font-size:clamp(34px,5vw,64px);font-weight:900;line-height:1.2;letter-spacing:1px;text-shadow:0 4px 20px rgba(0,0,0,.3);max-width:780px}
.slide h1 .accent{color:var(--gold)}
.slide p.sub{margin-top:22px;font-size:17px;color:#cfe1f7;max-width:620px;line-height:1.8}
.slide .btn-group{margin-top:38px;display:flex;gap:14px;flex-wrap:wrap}
.btn-primary,.btn-ghost{display:inline-flex;align-items:center;gap:10px;padding:14px 30px;font-size:15px;font-weight:600;border-radius:2px;transition:.2s;cursor:pointer;border:0}
.btn-primary{background:#fff;color:var(--brand-deep)}
.btn-primary:hover{background:var(--gold);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.dots{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.dot{width:36px;height:3px;background:rgba(255,255,255,.35);cursor:pointer;transition:.3s;border:0}
.dot.on{background:#fff;width:54px}
.arrow{position:absolute;top:50%;transform:translateY(-50%);width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.15);border:1.5px solid rgba(255,255,255,.5);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.2s;z-index:5;font-size:42px;font-weight:300;line-height:1;font-family:"Barlow",Arial,sans-serif;padding:0;padding-bottom:6px}
.arrow:hover{background:#fff;color:var(--brand-deep)}
.arrow.prev{left:32px}.arrow.next{right:32px}

/* page banner (subpages) */
.page-banner{position:relative;height:360px;background:linear-gradient(rgba(7,44,82,.78),rgba(7,44,82,.62)),url('../images/hero.jpg') center/cover;color:#fff;display:flex;align-items:center;text-align:center}
.page-banner .container{width:100%}
.page-banner h1{font-size:46px;font-weight:900;letter-spacing:2px}
.page-banner .crumb{margin-top:14px;font-size:14px;color:#cfe1f7;font-family:"Barlow",sans-serif;letter-spacing:.15em}
.page-banner .crumb a{color:#cfe1f7}.page-banner .crumb a:hover{color:#fff}

/* sections */
section{padding:96px 0}
.sec-head{text-align:center;margin-bottom:60px}
.sec-head .en{font-family:"Barlow",sans-serif;font-size:14px;letter-spacing:.45em;text-transform:uppercase;color:var(--brand-2);font-weight:600;margin-bottom:12px}
.sec-head h2{font-size:38px;font-weight:900;color:var(--ink);letter-spacing:1px;position:relative;display:inline-block;padding-bottom:18px}
.sec-head h2::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:48px;height:4px;background:var(--brand);border-radius:2px}
.sec-head p{margin-top:20px;color:var(--muted);font-size:15px;max-width:680px;margin-left:auto;margin-right:auto}

/* services */
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.svc-card{background:#fff;border:1px solid var(--line);overflow:hidden;transition:.35s;cursor:pointer;display:block}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.svc-img{height:200px;overflow:hidden;position:relative;background:var(--soft)}
.svc-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.svc-card:hover .svc-img img{transform:scale(1.08)}
.svc-img .num{position:absolute;top:14px;left:14px;font-family:"Barlow",sans-serif;font-size:28px;font-weight:900;color:#fff;background:var(--brand);width:46px;height:46px;display:grid;place-items:center;border-radius:2px}
.svc-body{padding:26px 24px 30px}
.svc-body h3{font-size:19px;font-weight:700;margin-bottom:10px;color:var(--ink)}
.svc-body .en-s{font-family:"Barlow",sans-serif;font-size:12px;color:var(--brand-2);letter-spacing:.2em;text-transform:uppercase;margin-bottom:14px;display:block}
.svc-body p{font-size:13.5px;color:var(--muted);line-height:1.75;min-height:75px}
.svc-body .more{margin-top:18px;display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:13px;font-weight:600;font-family:"Barlow",sans-serif;text-transform:uppercase;letter-spacing:.15em}

/* about */
.about{background:var(--soft);position:relative;overflow:hidden}
section.about::before{content:"ABOUT";position:absolute;right:-30px;top:30px;font-family:"Barlow",sans-serif;font-size:240px;font-weight:900;color:#e8eef7;line-height:1;letter-spacing:-.05em;pointer-events:none;z-index:0}
.about .container{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center}
.about-text .en{font-family:"Barlow",sans-serif;font-size:14px;letter-spacing:.4em;text-transform:uppercase;color:var(--brand-2);font-weight:600;margin-bottom:14px}
.about-text h2{font-size:40px;font-weight:900;color:var(--ink);line-height:1.25;letter-spacing:1px;padding-bottom:22px;border-bottom:3px solid var(--brand);display:inline-block;margin-bottom:28px}
.about-text > p{font-size:15px;color:var(--ink-2);line-height:2;margin-bottom:14px}
.facts{margin-top:36px;display:grid;grid-template-columns:repeat(2,1fr);gap:18px 30px}
.fact{padding:18px 0;border-top:1px solid var(--line)}
.fact .k{font-size:12px;color:var(--muted);letter-spacing:.15em;text-transform:uppercase;font-family:"Barlow",sans-serif;font-weight:600}
.fact .v{margin-top:6px;font-size:15px;font-weight:600;color:var(--ink)}
.about-text .btn-group{margin-top:38px}
.about-img{position:relative;height:540px}
.about-img img{position:absolute;width:78%;height:78%;object-fit:cover;border-radius:2px;box-shadow:var(--shadow)}
.about-img img.a{top:0;left:0}
.about-img img.b{bottom:0;right:0;width:55%;height:55%;border:8px solid #fff}
.about-img .badge{position:absolute;left:0;bottom:34px;background:var(--brand);color:#fff;padding:24px 30px;z-index:2;box-shadow:0 14px 36px rgba(10,77,140,.35)}
.about-img .badge .n{font-family:"Barlow",sans-serif;font-size:38px;font-weight:900;line-height:1}
.about-img .badge .t{font-size:13px;margin-top:6px;opacity:.9}

/* databar */
.databar{background:linear-gradient(rgba(7,44,82,.92),rgba(7,44,82,.92)),url('../images/news2.jpg') center/cover;color:#fff;padding:72px 0}
.databar .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.databar .item{padding:0 20px}
.databar .item + .item{border-left:1px solid rgba(255,255,255,.15)}
.databar .n{font-family:"Barlow",sans-serif;font-size:54px;font-weight:900;color:var(--gold);line-height:1}
.databar .n small{font-size:22px;margin-left:4px}
.databar .t{margin-top:10px;font-size:14px;color:#cfe1f7;letter-spacing:.1em}

/* categories */
.cat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.cat{background:#fff;border:1px solid var(--line);text-align:center;transition:.35s;cursor:pointer;overflow:hidden;display:block}
.cat:hover{border-color:var(--brand);transform:translateY(-6px);box-shadow:var(--shadow)}
.cat-img{height:160px;overflow:hidden;background:var(--soft)}
.cat-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.cat:hover .cat-img img{transform:scale(1.1)}
.cat-info{padding:18px 12px 22px;border-top:3px solid transparent;transition:.3s}
.cat:hover .cat-info{border-top-color:var(--brand)}
.cat-zh{font-size:15px;font-weight:700;color:var(--ink)}
.cat-en{display:block;margin-top:4px;font-family:"Barlow",sans-serif;font-size:11px;color:var(--muted);letter-spacing:.15em;text-transform:uppercase}

/* news */
.news-sec{background:var(--soft)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.news-card{background:#fff;overflow:hidden;transition:.35s;cursor:pointer;display:block}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.news-img{height:240px;overflow:hidden}
.news-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.news-card:hover .news-img img{transform:scale(1.06)}
.news-body{padding:26px 28px 30px;border-top:3px solid var(--brand-2)}
.news-body .date{font-family:"Barlow",sans-serif;font-size:13px;color:var(--brand);letter-spacing:.1em;font-weight:600}
.news-body h4{font-size:18px;font-weight:700;margin:12px 0 14px;color:var(--ink);line-height:1.5;min-height:54px}
.news-body p{font-size:13.5px;color:var(--muted);line-height:1.75;min-height:70px}
.news-body .more{margin-top:18px;display:inline-block;color:var(--brand);font-size:13px;font-weight:600;font-family:"Barlow",sans-serif;letter-spacing:.15em;text-transform:uppercase}

/* partners — logo marquee */
.partners-sec{background:linear-gradient(180deg,#f5f8fc 0%,#eef3f9 100%)}
.marquee{position:relative;overflow:hidden;margin-top:20px;padding:14px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee-track{display:flex;gap:28px;width:max-content;animation:marquee 40s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee.reverse .marquee-track{animation-direction:reverse;animation-duration:46s}
.logo-card{flex:0 0 auto;width:180px;height:90px;background:#fff;border:1px solid rgba(20,40,80,.06);border-radius:12px;display:grid;place-items:center;padding:14px 18px;box-shadow:0 1px 2px rgba(20,40,80,.04);transition:transform .3s ease,box-shadow .3s ease}
.logo-card:hover{transform:translateY(-3px);box-shadow:0 14px 28px -16px rgba(20,40,80,.25)}
.logo-card img{max-width:100%;max-height:100%;object-fit:contain;filter:none}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.partner-note{margin-top:22px;text-align:center;color:#8896ab;font-size:12.5px;letter-spacing:.02em}

/* contact */
.contact-sec{background:linear-gradient(rgba(7,44,82,.95),rgba(7,44,82,.95)),url('../images/banner2.jpg') center/cover;color:#fff;text-align:center}
.contact-sec .sec-head h2{color:#fff}.contact-sec .sec-head .en{color:#7eb8ff}.contact-sec .sec-head h2::after{background:var(--gold)}
.contact-sec p.lead{font-size:16px;color:#cfe1f7;max-width:680px;margin:0 auto 38px}
.contact-sec .btn-group{justify-content:center;display:flex;gap:14px;flex-wrap:wrap}
.contact-info{margin-top:60px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;text-align:left}
.ci{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);padding:30px;backdrop-filter:blur(6px)}
.ci .ico{width:48px;height:48px;display:grid;place-items:center;background:var(--brand-2);border-radius:50%;margin-bottom:18px;font-size:20px}
.ci h5{font-size:15px;font-weight:700;color:#fff;margin-bottom:6px;letter-spacing:.05em}
.ci p{font-size:14px;color:#cfe1f7;line-height:1.75}

/* contact form */
.contact-form{max-width:760px;margin:0 auto;background:#fff;padding:48px;box-shadow:var(--shadow);text-align:left}
.contact-form .row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.contact-form label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:8px;letter-spacing:.05em}
.contact-form input,.contact-form textarea{width:100%;padding:14px 16px;border:1px solid var(--line);background:var(--soft);font-size:14px;font-family:inherit;color:var(--ink);border-radius:2px;transition:.2s}
.contact-form input:focus,.contact-form textarea:focus{outline:0;border-color:var(--brand);background:#fff}
.contact-form textarea{min-height:140px;resize:vertical}
.contact-form .full{grid-column:1/-1}
.contact-form button{margin-top:18px;padding:16px 48px;background:var(--brand);color:#fff;border:0;font-size:15px;font-weight:600;cursor:pointer;border-radius:2px;transition:.2s;letter-spacing:.05em}
.contact-form button:hover{background:var(--brand-2);transform:translateY(-2px);box-shadow:var(--shadow)}

/* article (news detail / about prose) */
.prose{max-width:880px;margin:0 auto}
.prose h2{font-size:30px;font-weight:900;margin:32px 0 14px;color:var(--ink)}
.prose h3{font-size:20px;font-weight:700;margin:24px 0 10px;color:var(--ink)}
.prose p{font-size:15.5px;line-height:2;color:var(--ink-2);margin-bottom:14px}
.prose ul{margin:14px 0 14px 24px;color:var(--ink-2)}
.prose ul li{margin-bottom:8px;line-height:1.85}
.prose .lead-img{margin:24px 0;width:100%;height:380px;object-fit:cover}

/* footer */
footer{background:#061d36;color:#94a8c2;padding:60px 0 0;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08)}
.foot h6{color:#fff;font-size:15px;font-weight:700;margin-bottom:20px;letter-spacing:.05em}
.foot ul{list-style:none}
.foot ul li{margin-bottom:10px;font-size:13.5px}
.foot ul li a{color:#94a8c2;transition:.2s}.foot ul li a:hover{color:#fff;padding-left:4px}
.foot .desc{font-size:13.5px;line-height:1.85;margin-top:16px}
.foot .logo .name{color:#fff}.foot .logo .sub{color:#7d97b8}
.copy{padding:22px 0;font-size:13px;color:#7d97b8;text-align:center}
.copy a{color:#7d97b8;margin:0 8px;transition:.2s}.copy a:hover{color:#fff}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.08s}
.reveal[data-delay="2"]{transition-delay:.16s}
.reveal[data-delay="3"]{transition-delay:.24s}
.reveal[data-delay="4"]{transition-delay:.32s}
.reveal[data-delay="5"]{transition-delay:.40s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* responsive */
@media (max-width:980px){
  .topbar .left span:not(.hotline){display:none}
  .nav{display:none}
  .svc-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .partner-grid{grid-template-columns:repeat(3,1fr)}
  .databar .grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .databar .item + .item{border-left:0}
  .about .container{grid-template-columns:1fr;gap:48px}
  .about-img{height:380px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .contact-info{grid-template-columns:1fr}
  section{padding:64px 0}
  .sec-head h2{font-size:30px}.about-text h2{font-size:30px}
  .arrow{display:none}
  .contact-form{padding:30px}
  .contact-form .row{grid-template-columns:1fr}
  .page-banner{height:240px}.page-banner h1{font-size:32px}
}
@media (max-width:560px){
  .svc-grid,.news-grid,.foot-grid{grid-template-columns:1fr}
  .cat-grid,.partner-grid{grid-template-columns:repeat(2,1fr)}
  .databar .n{font-size:40px}
  .slide h1{font-size:30px}
  .header .container{height:64px}.logo .sub{display:none}
}