:root { --blue:#1048b8; --navy:#102044; --yellow:#ffc900; --red:#ef2924; --ink:#1b2945; --muted:#667592; --line:#e4eaf5; --wash:#f4f7fc; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; background:#fff; color:var(--ink); font-family: "PingFang SC","Microsoft YaHei",Arial,sans-serif; }
a { color:inherit; text-decoration:none; }
.site-header { height:88px; border-bottom:1px solid var(--line); display:flex; align-items:center; gap:44px; padding:0 max(5vw,48px); position:sticky; top:0; background:rgba(255,255,255,.94); z-index:20; backdrop-filter:blur(14px); }
.brand { display:flex; gap:10px; align-items:center; font-family:Georgia,"Songti SC",serif; font-weight:800; font-size:25px; letter-spacing:-1px; white-space:nowrap; }.brand img{object-fit:contain}
nav { display:flex; align-items:stretch; gap:30px; height:100%; margin-left:auto; } nav a { position:relative; display:flex; align-items:center; color:#39455d; font-size:14px; white-space:nowrap; } nav a:hover,nav .active{color:var(--blue);font-weight:700} nav .active:after{content:""; position:absolute; height:3px; left:0; right:0; bottom:0; background:var(--blue); border-radius:3px 3px 0 0;}
.header-cta { color:var(--blue); font-weight:700; font-size:14px; white-space:nowrap;}.header-cta span,.text-link span{font-size:18px;margin-left:5px}
.hero { min-height:570px; padding:76px max(7vw,64px) 64px; display:grid; grid-template-columns:minmax(440px,.94fr) 1.06fr; overflow:hidden; background:linear-gradient(110deg,#fff 20%,#f7faff 100%); }
.hero-copy{position:relative;z-index:2;align-self:center}.eyebrow,.kicker{font-size:12px;letter-spacing:1.4px;font-weight:800;color:var(--blue);margin:0 0 18px;text-transform:uppercase}.eyebrow{color:#b47a00;background:#fff4cd;display:inline-flex;align-items:center;padding:8px 13px;border-radius:20px;letter-spacing:.6px}.eyebrow i{width:7px;height:7px;background:var(--yellow);border-radius:50%;margin-right:8px}
h1,h2,h3,p{margin-top:0}h1{font-family:Georgia,"Songti SC",serif;font-size:clamp(46px,5vw,74px);line-height:1.14;letter-spacing:-3px;margin:0 0 22px;color:#142241}h1 em{font-style:normal;color:var(--blue)}.hero-text{font-size:18px;color:var(--muted);letter-spacing:.4px}.hero-actions{display:flex;gap:27px;align-items:center;margin-top:36px}.button{display:inline-flex;align-items:center;gap:20px;border-radius:5px;padding:15px 21px;font-size:15px;font-weight:800}.button-primary{background:var(--blue);color:#fff;box-shadow:0 13px 23px #1048b833}.button-primary:hover{background:#0d3fa0}.text-link{font-size:14px;font-weight:700;color:var(--blue)}
.hero-art{position:relative;min-height:430px;margin:-35px -8vw -58px 20px;background:radial-gradient(circle at 55% 50%,#fff 0 14%,transparent 15%),radial-gradient(circle at 55% 48%,#dceaff 0 3%,transparent 3.5%);overflow:hidden}.hero-art:before{content:"";position:absolute;inset:16% 6% 8%;background:repeating-radial-gradient(ellipse at center,transparent 0 26px,#c9dcff 27px 28px,transparent 29px 52px);transform:rotate(-9deg);opacity:.9}.hero-art:after{content:"";position:absolute;width:530px;height:530px;border-radius:50%;left:18%;top:7%;border:1px solid #d6e5ff;box-shadow:0 0 0 48px #eaf2ff80,0 0 0 96px #f1f6ff99}.hero-art p{position:absolute;z-index:3;top:35%;left:39%;font-size:11px;letter-spacing:3px;line-height:1.8;color:#8194b7;text-align:center}.hero-art p b{color:var(--blue)}.orbital{position:absolute;border:1px solid #8bb4ff;border-radius:50%;z-index:2;transform:rotate(-25deg)}.orbital-one{width:490px;height:205px;left:10%;top:33%}.orbital-two{width:440px;height:170px;left:15%;top:38%;border-color:#d9b43b}.orbital-three{width:360px;height:135px;left:23%;top:42%;border-color:#b5cffd}.node{position:absolute;z-index:4;width:13px;height:13px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px #e9f2ff}.n1{top:31%;left:23%}.n2{top:24%;left:48%;width:25px;height:25px}.n3{top:41%;left:65%;width:19px;height:19px}.n4{top:63%;left:30%;background:var(--yellow)}.n5{top:69%;left:61%;width:15px;height:15px}.n6{top:48%;left:78%;background:var(--red)}.n7{top:22%;left:75%}.n8{top:73%;left:77%;background:var(--yellow)}.signal{position:absolute;border-top:1px solid #9fc0ff;transform-origin:left;z-index:1}.s1{width:220px;top:34%;left:24%;transform:rotate(16deg)}.s2{width:210px;top:48%;left:35%;transform:rotate(-28deg)}.s3{width:190px;top:43%;left:49%;transform:rotate(39deg)}
.latest,.section-index{padding:84px max(7vw,64px)}.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:30px;gap:30px}.section-heading h2,.subscribe h2{font-family:Georgia,"Songti SC",serif;font-size:34px;letter-spacing:-1px;margin:0}.section-heading .kicker{margin-bottom:8px}.section-intro{max-width:340px;color:var(--muted);font-size:14px;line-height:1.8;margin:0}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.article-card{min-height:250px;border:1px solid var(--line);border-radius:10px;padding:24px;background:#fff;display:flex;flex-direction:column;transition:.25s box-shadow,.25s transform}.article-card:hover{box-shadow:0 15px 30px #17326313;transform:translateY(-3px)}.article-card:nth-child(2){background:#fffdf8}.article-top{display:flex;justify-content:space-between;align-items:center}.article-top span{font-size:12px;color:var(--blue);font-weight:800;background:#edf3ff;padding:6px 9px;border-radius:4px}.article-2 .article-top span{background:#fff0bd;color:#9d7200}.article-top b{font-size:20px;color:#d9e2f2}.article-card h3{font-size:19px;line-height:1.5;margin:23px 0 10px}.article-card p{font-size:13px;line-height:1.8;color:var(--muted);margin:0}.article-card footer{margin-top:auto;padding-top:22px;font-size:12px;color:#8795ad;display:flex;justify-content:space-between;align-items:center}.article-card footer a{color:var(--blue);font-size:20px}.section-index{background:var(--wash)}.topic-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.topic-card{min-height:166px;border:1px solid #dce6f5;border-radius:8px;background:#fff;padding:19px;display:flex;flex-direction:column;position:relative}.topic-card:hover{border-color:#9fc1ff;box-shadow:0 12px 24px #17326312}.topic-card>b{color:#bfd0eb;font-size:13px}.topic-card div{margin-top:auto}.topic-card h3{font-size:17px;margin:0 0 7px}.topic-card p{font-size:12px;color:var(--muted);margin:0}.topic-card>span{position:absolute;right:17px;bottom:17px;color:var(--blue);font-size:19px}.topic-card:nth-child(2){border-color:#f5dfa1}.topic-card:nth-child(4){border-color:#ffd2ce}.topic-card:nth-child(4)>span{color:var(--red)}
.resource-band{padding:84px max(7vw,64px);display:grid;grid-template-columns:1fr 1.15fr;gap:70px;background:var(--navy);color:#fff}.resource-band .kicker{color:var(--yellow)}.resource-band h2{font-family:Georgia,"Songti SC",serif;font-size:39px;line-height:1.25;margin:0}.resource-list{border-top:1px solid #ffffff34}.resource-list a{display:flex;gap:22px;align-items:center;padding:21px 0;border-bottom:1px solid #ffffff24;font-size:18px}.resource-list span{font-size:12px;color:#89b0ff}.resource-list b{margin-left:auto;color:var(--yellow)}
.subscribe{margin:76px max(7vw,64px);border:1px solid #dce7fa;border-radius:12px;padding:34px 42px;display:grid;grid-template-columns:auto 1fr 1.05fr;align-items:center;gap:25px;background:linear-gradient(120deg,#f4f8ff,#fff)}.subscribe-mark{width:64px;height:64px;border-radius:50%;background:conic-gradient(from 210deg,var(--red) 0 33%,transparent 33% 39%,var(--yellow) 39% 65%,transparent 65% 71%,var(--blue) 71% 100%);font-family:Georgia,serif;font-size:33px;color:var(--navy);font-weight:bold;display:grid;place-items:center}.subscribe-mark:after{content:"";position:absolute}.subscribe .kicker{margin-bottom:6px}.subscribe h2{font-size:26px;margin-bottom:9px}.subscribe p{margin:0;color:var(--muted);font-size:13px}.subscribe form{display:flex}.subscribe input{min-width:0;flex:1;padding:14px;border:1px solid #d7e0f0;border-right:0;border-radius:5px 0 0 5px;font:inherit;font-size:13px;outline:none}.subscribe button{border:0;background:var(--blue);color:#fff;border-radius:0 5px 5px 0;padding:0 17px;font:inherit;font-weight:700;font-size:13px;white-space:nowrap}
.site-footer{border-top:1px solid var(--line);padding:38px max(7vw,64px) 45px;display:grid;grid-template-columns:auto 1fr auto;gap:26px;align-items:center;color:#66738a;font-size:13px}.footer-brand{display:flex;align-items:center;gap:7px;color:var(--ink);font-family:Georgia,"Songti SC",serif;font-size:18px}.footer-brand img{object-fit:contain}.site-footer p{margin:0}.footer-links{display:flex;gap:16px;grid-column:2}.site-footer small{grid-column:3;grid-row:1 / span 2;text-align:right}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:980px){.site-header{gap:18px;padding:0 26px}.site-header nav{gap:16px}.header-cta{display:none}.hero{grid-template-columns:1fr;padding:65px 7vw 0}.hero-art{height:390px;margin:20px -7vw 0}.article-grid{grid-template-columns:1fr}.topic-grid{grid-template-columns:repeat(2,1fr)}.resource-band{grid-template-columns:1fr;gap:34px}.subscribe{grid-template-columns:auto 1fr}.subscribe form{grid-column:1/-1}.site-footer{grid-template-columns:1fr}.footer-links,.site-footer small{grid-column:auto;grid-row:auto;text-align:left}}
@media(max-width:640px){.site-header{height:72px;padding:0 18px}.brand{font-size:20px}.brand img{width:42px;height:42px}nav{display:none}.hero{padding:52px 24px 0}.hero-art{min-height:300px}.hero-art:after{left:8%;transform:scale(.75);transform-origin:top left}.hero-art p{left:36%;top:31%}h1{font-size:47px;letter-spacing:-2px}.hero-text{font-size:15px}.hero-actions{flex-wrap:wrap}.latest,.section-index{padding:57px 24px}.section-heading{align-items:start;flex-direction:column;gap:15px}.topic-grid{grid-template-columns:1fr}.topic-card{min-height:125px}.resource-band{padding:56px 24px}.resource-band h2{font-size:33px}.subscribe{margin:54px 24px;padding:26px;grid-template-columns:1fr}.subscribe-mark{display:none}.site-footer{padding:35px 24px}.footer-links{flex-wrap:wrap}}