/* ===== ???? ? ???? ===== */
:root{--navy:#0a1a33;--blue:#0e4d9e;--blue2:#1470d8;--green:#16b875;--green2:#0ea067;--ink:#1f2a44;--gray:#64748b;--line:#e4eaf2;--bg:#f6f9fc}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}

/* ---- ???? ---- */
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-in{max-width:1160px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px}
.logo .mark{width:38px;height:38px;border-radius:9px;background:linear-gradient(135deg,var(--blue2),var(--green));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px}
.logo-img{width:38px;height:38px;border-radius:9px;object-fit:cover;border:1px solid #e4eaf2}
.logo .name{font-size:19px;font-weight:700;letter-spacing:1px}
.logo .name small{display:block;font-size:10px;color:var(--gray);letter-spacing:3px;font-weight:400}
.nav{display:flex;gap:26px;align-items:center}
.nav a{font-size:15px;color:#3c4a63;transition:.2s}
.nav a:hover,.nav a.active{color:var(--blue2)}
.nav .cta{background:linear-gradient(90deg,var(--blue2),var(--green));color:#fff!important;padding:8px 20px;border-radius:24px;font-size:14px}
.nav-toggle{display:none;background:none;border:none;font-size:22px;color:var(--ink);cursor:pointer}

/* ---- ?? ---- */
.hero{position:relative;overflow:hidden;background:radial-gradient(1100px 520px at 80% -10%,rgba(20,112,216,.28),transparent 60%),radial-gradient(900px 480px at 0% 110%,rgba(22,184,117,.22),transparent 55%),linear-gradient(135deg,#081529,#0c2447 55%,#0e3a6b)}
.hero .grid{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:44px 44px;mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%)}
.hero .rings{position:absolute;right:-140px;top:50%;transform:translateY(-50%);width:520px;height:520px;pointer-events:none}
.hero .rings i{position:absolute;inset:0;border:1px solid rgba(255,255,255,.12);border-radius:50%}
.hero .rings i:nth-child(2){inset:70px}.hero .rings i:nth-child(3){inset:140px}
.hero .rings i:nth-child(4){inset:210px;border-color:rgba(22,184,117,.5);box-shadow:0 0 40px rgba(22,184,117,.25)}
.hero-in{position:relative;z-index:2;padding:110px 0 120px;max-width:1160px;margin:0 auto;padding-left:24px;padding-right:24px;color:#fff}
.hero-tag{display:inline-block;border:1px solid rgba(255,255,255,.35);border-radius:24px;padding:5px 16px;font-size:13px;letter-spacing:3px;color:#cfe6ff}
.hero h1{font-size:46px;line-height:1.35;margin:22px 0 16px;font-weight:800;letter-spacing:1px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#6db8ff,#2ee6a0);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:17px;color:#c6d6ea;max-width:640px}
.hero-btns{margin-top:34px;display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 30px;border-radius:28px;font-size:15px;font-weight:600;transition:.25s}
.btn-solid{background:linear-gradient(90deg,var(--blue2),var(--green));color:#fff;box-shadow:0 12px 28px rgba(20,112,216,.35)}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(20,112,216,.45)}
.btn-ghost{border:1px solid rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.hero-stats{margin-top:56px;display:flex;gap:44px;flex-wrap:wrap}
.hero-stats .s b{font-size:30px;font-weight:800;color:#fff}
.hero-stats .s b span{color:#2ee6a0}
.hero-stats .s p{font-size:13px;color:#9fb6cf;margin-top:2px}

/* ---- ???? ---- */
section{padding:84px 0}
.sec-head{text-align:center;max-width:720px;margin:0 auto 48px}
.sec-head .k{font-size:13px;letter-spacing:5px;color:var(--green);font-weight:600}
.sec-head h2{font-size:32px;font-weight:800;margin-top:10px;letter-spacing:1px}
.sec-head p{color:var(--gray);margin-top:12px;font-size:15px}
.sec-line{width:52px;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--blue2),var(--green));margin:18px auto 0}

/* ---- ?? ---- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px 26px;transition:.28s}
.card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(15,40,90,.12);border-color:transparent}
.card .ic{width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.card p{font-size:14px;color:var(--gray)}
.ic-blue{background:#e8f2ff}.ic-green{background:#e6f9f0}.ic-purple{background:#f0ecff}.ic-orange{background:#fff4e6}

/* ---- ??? ---- */
.statband{background:linear-gradient(120deg,#0b2a56,#0e4d9e 60%,#0e7f63)}
.statband .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-top:54px;padding-bottom:54px;text-align:center;color:#fff}
.statband .n{font-size:34px;font-weight:800}
.statband .n span{color:#2ee6a0}
.statband .t{font-size:14px;color:#b9cce2;margin-top:4px}

/* ---- ?? ---- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split h2{font-size:30px;font-weight:800;margin-bottom:16px}
.split p{color:var(--gray);margin-bottom:14px;font-size:15px}
.split ul{list-style:none}
.split li{padding:7px 0 7px 26px;position:relative;color:#3c4a63;font-size:15px}
.split li::before{content:"";position:absolute;left:4px;top:15px;width:9px;height:9px;border-radius:50%;background:linear-gradient(135deg,var(--blue2),var(--green))}
.mock{background:linear-gradient(150deg,#0c2a55,#12539f);border-radius:18px;padding:34px;color:#fff;box-shadow:0 24px 60px rgba(10,40,100,.3)}
.mock .m-head{font-size:15px;color:#a8c4e4;letter-spacing:2px;margin-bottom:18px}
.mock .m-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:14px}
.mock .m-row b{color:#2ee6a0}
.mock .m-bars{display:flex;gap:8px;align-items:flex-end;height:120px;margin-top:20px}
.mock .m-bars i{flex:1;border-radius:4px 4px 0 0;background:linear-gradient(180deg,#3d8df0,#1b5fc0)}
.mock .m-bars i.g{background:linear-gradient(180deg,#39d99a,#12a36e)}

/* ---- ?? ---- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px;transition:.28s}
.news-card:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(15,40,90,.1)}
.news-card .date{font-size:12px;color:var(--gray);letter-spacing:1px}
.news-card h3{font-size:17px;font-weight:700;margin:10px 0 8px;line-height:1.5}
.news-card p{font-size:13.5px;color:var(--gray)}
.news-card .more{display:inline-block;margin-top:12px;color:var(--blue2);font-size:13px;font-weight:600}

/* ---- ??/?? ---- */
.cta-band{background:linear-gradient(120deg,#0b2a56,#0e4d9e);border-radius:18px;padding:46px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px;color:#fff;flex-wrap:wrap}
.cta-band h3{font-size:24px;font-weight:800}
.cta-band p{color:#b9cce2;margin-top:6px}
footer{background:#081528;color:#7f93ad;padding:52px 0 30px}
.foot-grid{max-width:1160px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:34px}
.foot-grid h4{color:#fff;font-size:16px;margin-bottom:16px;font-weight:700}
.foot-grid a{display:block;color:#7f93ad;margin-bottom:10px;font-size:14px}
.foot-grid a:hover{color:#2ee6a0}
.foot-grid .about{font-size:14px}
.foot-copy{max-width:1160px;margin:26px auto 0;padding:18px 24px 0;border-top:1px solid #132a4a;text-align:center;font-size:13px}

/* ---- ?? hero ---- */
.page-hero{background:linear-gradient(120deg,#0b2a56,#0e4d9e 60%,#0e7f63);color:#fff;padding:64px 0}
.page-hero h1{font-size:34px;font-weight:800}
.page-hero p{color:#c6d6ea;margin-top:8px}

/* ---- ??? ---- */
@media(max-width:860px){
  .grid3,.grid4,.news-grid,.statband .wrap{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav{position:fixed;top:60px;right:0;background:#fff;flex-direction:column;gap:0;padding:8px 26px;border:1px solid var(--line);display:none;z-index:200}
  .nav.open{display:flex}
  .nav a{padding:12px 2px;border-bottom:1px solid var(--line)}
  .nav-toggle{display:block}
  .hero h1{font-size:32px}
}
@media(max-width:520px){.grid3,.grid4,.news-grid,.statband .wrap{grid-template-columns:1fr}}

/* ---- 高大上图片与动态效果 ---- */
.hero-bg{position:absolute;inset:0;background:url(images/hero.jpg) center/cover no-repeat;animation:kenburns 24s ease-in-out infinite alternate}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,18,40,.45),rgba(8,18,40,.88)),radial-gradient(ellipse at 50% 0%,rgba(20,112,216,.32),transparent 62%);pointer-events:none}
@keyframes kenburns{0%{transform:scale(1)}100%{transform:scale(1.14)}}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.on{opacity:1;transform:none}
.num{font-variant-numeric:tabular-nums}
.img-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.img-card{position:relative;border-radius:16px;overflow:hidden;margin:0;cursor:pointer;box-shadow:0 18px 40px rgba(0,0,0,.35)}
.img-card img{width:100%;height:230px;object-fit:cover;display:block;transition:transform .6s ease}
.img-card:hover img{transform:scale(1.08)}
.img-card figcaption{position:absolute;left:0;right:0;bottom:0;padding:34px 20px 16px;background:linear-gradient(180deg,transparent,rgba(5,14,30,.85));color:#fff}
.img-card b{font-size:17px;display:block}
.img-card span{font-size:12.5px;color:#b9cce2;display:block;margin-top:3px}
.banner-img{position:relative;border-radius:18px;overflow:hidden;box-shadow:0 20px 50px rgba(10,40,100,.25)}
.banner-img img{width:100%;height:340px;object-fit:cover;display:block;transition:transform .8s ease}
.banner-img:hover img{transform:scale(1.05)}
.banner-cap{position:absolute;left:0;right:0;bottom:0;padding:40px 26px 22px;background:linear-gradient(180deg,transparent,rgba(5,14,30,.88));color:#fff}
.banner-cap b{font-size:22px;display:block;letter-spacing:2px}
.banner-cap span{font-size:13px;color:#b9cce2;display:block;margin-top:6px}
.sec-dark{background:#0a1a33}
.sec-dark .sec-head p{color:#9fb6cf}
@media(max-width:860px){.img-row{grid-template-columns:1fr}}