*{box-sizing:border-box;margin:0;padding:0}
:root{--ink:#17202e;--mut:#6b7280;--line:#e8ebf0;--acc:#1d5fd6;--bg:#f4f6f9;--card:#fff}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
a{color:inherit}
/* header */
.site-header{background:#0d1526;color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 2px 12px rgba(0,0,0,.18)}
.header-inner{display:flex;align-items:center;gap:18px;height:60px}
.logo{font-size:22px;font-weight:800;letter-spacing:3px;color:#fff;text-decoration:none;white-space:nowrap}
.logo em{font-style:normal;color:#5ea0ff}
.hdate{font-size:12px;color:#8b98b0;white-space:nowrap}
nav.mainnav{margin-left:auto;display:flex;gap:2px;overflow-x:auto}
nav.mainnav a{color:#c3cede;text-decoration:none;font-size:14px;padding:8px 13px;border-radius:8px;white-space:nowrap}
nav.mainnav a:hover{background:#1a2540;color:#fff}
nav.mainnav a.active{background:var(--acc);color:#fff;font-weight:600}
/* hero */
.hero{padding:26px 0 6px}
.hero-grid{display:grid;grid-template-columns:1.65fr 1fr;gap:18px}
.hero-main{position:relative;border-radius:14px;overflow:hidden;display:block;min-height:380px;background:#0d1526;color:#fff;text-decoration:none}
.hero-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.hero-main:hover img{transform:scale(1.03)}
.hero-main .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,25,0) 30%,rgba(5,10,25,.88) 100%)}
.hero-main .htext{position:absolute;left:0;right:0;bottom:0;padding:26px}
.hero-main h2{font-size:24px;line-height:1.45;margin:10px 0 8px}
.hero-side{display:flex;flex-direction:column;gap:18px}
.hero-sub{position:relative;border-radius:14px;overflow:hidden;display:block;flex:1;min-height:180px;background:#0d1526;color:#fff;text-decoration:none}
.hero-sub img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.hero-sub:hover img{transform:scale(1.04)}
.hero-sub .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,25,.05) 20%,rgba(5,10,25,.88) 100%)}
.hero-sub .htext{position:absolute;left:0;right:0;bottom:0;padding:18px}
.hero-sub h3{font-size:16px;line-height:1.5;margin-top:8px}
.kicker{display:inline-block;font-size:12px;font-weight:700;color:#fff;background:var(--acc);border-radius:6px;padding:2px 9px}
.hmeta{font-size:12px;color:#c3cede;margin-top:6px}
/* section */
.sec-head{display:flex;align-items:baseline;justify-content:space-between;margin:26px 0 14px}
.sec-head h2{font-size:20px;font-weight:800}
.sec-head h2::before{content:"";display:inline-block;width:5px;height:18px;background:var(--acc);border-radius:3px;margin-right:9px;vertical-align:-2px}
.sec-head .more{font-size:13px;color:var(--mut);text-decoration:none}
.sec-head .more:hover{color:var(--acc)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border-radius:14px;overflow:hidden;text-decoration:none;box-shadow:0 1px 4px rgba(15,25,45,.07);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(15,25,45,.13)}
.card .thumb{aspect-ratio:16/9;overflow:hidden;background:#dde3ec}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card:hover .thumb img{transform:scale(1.05)}
.card .cbody{padding:15px 17px 14px;display:flex;flex-direction:column;gap:8px;flex:1}
.card h3{font-size:15.5px;line-height:1.55;font-weight:650}
.card:hover h3{color:var(--acc)}
.card .cmeta{margin-top:auto;font-size:12px;color:var(--mut);display:flex;gap:8px;align-items:center}
.ctag{font-size:11.5px;color:var(--acc);background:#e8f0fe;border-radius:6px;padding:1px 8px;font-weight:600;white-space:nowrap}
/* category banner */
.cat-banner{border-radius:14px;overflow:hidden;position:relative;margin:26px 0 6px;min-height:190px;display:flex;align-items:flex-end;background:#0d1526;color:#fff}
.cat-banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55}
.cat-banner .cbt{position:relative;padding:26px}
.cat-banner h2{font-size:26px;letter-spacing:2px}
.cat-banner p{font-size:13px;color:#d5dded;margin-top:6px}
/* article */
.article{max-width:780px;margin:26px auto;background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 1px 4px rgba(15,25,45,.07)}
.article .lead{aspect-ratio:16/8;overflow:hidden;background:#dde3ec}
.article .lead img{width:100%;height:100%;object-fit:cover}
.article .abody{padding:30px 34px 26px}
.article h1{font-size:25px;line-height:1.5;margin:12px 0 10px}
.article .ameta{font-size:13px;color:var(--mut);padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:20px;display:flex;gap:10px;flex-wrap:wrap}
.article .apara{font-size:16px;line-height:1.9;margin-bottom:18px;color:#2a3446;text-align:justify}
.srcbox{margin:26px 0 6px;background:#f2f6fd;border:1px solid #dbe7fb;border-radius:10px;padding:14px 17px;font-size:13.5px;color:#3c4a63}
.srcbox a{color:var(--acc);text-decoration:none;font-weight:600}
.srcbox a:hover{text-decoration:underline}
.backlink{display:inline-block;margin:22px 0 8px;font-size:14px;color:var(--acc);text-decoration:none}
/* footer */
footer{margin-top:44px;background:#0d1526;color:#8b98b0;font-size:12.5px}
footer .wrap{padding-top:26px;padding-bottom:30px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a{color:#c3cede;text-decoration:none}
/* responsive */
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.hero-main{min-height:280px}.cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.header-inner{gap:10px}.hdate{display:none}.logo{font-size:19px}nav.mainnav a{padding:7px 9px;font-size:13px}.cards{grid-template-columns:1fr}.article .abody{padding:22px 20px}.article h1{font-size:21px}.hero-main h2{font-size:19px}}