:root{
--deep:#002E5C;
--blue:#0073E6;
--blue-dk:#005CB8;
--green:#156534;
--ink:#121212;
--grey:#595959;
--tint:#F5F9FE;
--tint2:#EBF4FD;
--line:#CCE3FA;
--paper:#FFFFFF;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Roboto","Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{width:100%;max-width:1440px;margin:0 auto;padding:0 96px}

/* 顶部实用条 —— 深蓝 #002E5C，右对齐入口 */
.topbar{background:var(--deep);color:#FFFFFF}
.topbar .wrap{height:46px;display:flex;align-items:center;justify-content:flex-end;gap:28px}
.topbar a{font-size:16px;white-space:nowrap;transition:color .18s}
.topbar a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:5px}

/* 白底标识条 —— 左标识、右主导航，当前项蓝色下划线 */
.sitehead{position:sticky;top:0;z-index:30;background:var(--paper);border-bottom:1px solid var(--line)}
.sitehead .wrap{height:104px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand{display:flex;align-items:center;gap:14px;flex:none}
.brand img{width:60px;height:60px;position:relative;top:-2px}
.brand .zh{font-size:20px;font-weight:700;line-height:1.25;letter-spacing:.01em;color:var(--ink)}
.brand .en{font-size:10px;color:var(--grey);letter-spacing:.10em;line-height:1.5;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:22px;flex-wrap:nowrap}
.nav a{font-size:18px;color:var(--ink);white-space:nowrap;position:relative;padding:36px 0;transition:color .18s}
.nav a:hover{color:var(--blue)}
.nav a.active{color:var(--blue);font-weight:400}
.nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--blue)}

/* 满幅主视觉 —— 照片压白字、左上深蓝渐变 */
.hero{position:relative;height:clamp(420px,36vw,560px);background:var(--deep);overflow:hidden}
.hero-bg{position:absolute;left:0;top:0;width:100%;height:100%;object-fit:cover;object-position:center 44%}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(96deg,rgba(0,46,92,.94) 0%,rgba(0,46,92,.87) 26%,rgba(0,46,92,.54) 50%,rgba(0,46,92,.12) 73%,rgba(0,46,92,0) 88%)}
.hero .wrap{position:relative;z-index:2;height:100%;display:flex;align-items:center}
.hero-copy{max-width:640px}
.hero-tag{font-size:16px;font-weight:400;letter-spacing:normal;color:#FFFFFF}
.hero h1{font-size:32px;line-height:1.2;font-weight:700;color:#FFFFFF;margin-top:16px}
.hero .desc{font-size:16px;line-height:1.75;color:rgba(255,255,255,.9);margin-top:16px;max-width:560px}
.btn{display:inline-block;background:var(--blue);color:#FFFFFF;font-size:16px;font-weight:700;line-height:24px;padding:8px 16px;transition:background .18s}
.btn:hover{background:var(--blue-dk)}
.hero .btn{margin-top:30px}

/* 区块 */
.section{padding:74px 0}
.section.tint{background:var(--tint)}
.sec-title{font-size:40px;font-weight:700;line-height:1.2}
.sec-sub{font-size:16px;color:var(--grey);margin-top:10px}

/* 内容卡 —— 白卡直角落浅蓝底，绿标签 + 日期在上 + 蓝色标题 */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:38px}
.card{display:flex;flex-direction:column;background:var(--paper);padding:26px 26px 28px;transition:background .18s}
.card:hover{background:var(--tint2)}
.tag{display:inline-block;align-self:flex-start;background:var(--green);color:#FFFFFF;font-size:14.4px;line-height:17.28px;padding:8px 12px}
.card .date{font-size:14.4px;font-weight:500;line-height:21.6px;color:var(--grey);margin-top:18px}
.card h3{font-size:20.8px;font-weight:700;line-height:27.04px;color:var(--blue);margin-top:8px}
.card:hover h3{text-decoration:underline;text-underline-offset:3px}

/* 机构概况 —— 图左文右 */
.about{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about img{width:100%;height:380px;object-fit:cover}
.about h2{font-size:40px;font-weight:700;line-height:1.2}
.intro-text{font-size:16px;line-height:1.75;color:var(--ink);margin-top:20px}

/* 列表 —— 栏目页与相关阅读 */
.list a{display:flex;align-items:baseline;gap:20px;padding:15px 0;border-bottom:1px solid var(--line);font-size:16px;transition:color .18s}
.list a:hover{color:var(--blue)}
.list a .t{flex:1}
.list a .d{font-size:14.4px;color:var(--grey);white-space:nowrap}

/* 内页 */
.crumb{font-size:14.4px;color:var(--grey);padding:26px 0 0}
.crumb a:hover{color:var(--blue)}
.crumb .sep{margin:0 9px;color:var(--line)}
.page-title{font-size:40px;line-height:1.2;font-weight:700;margin:16px 0 12px}
.page-meta{font-size:14.4px;font-weight:500;line-height:21.6px;color:var(--grey);padding-bottom:24px;border-bottom:1px solid var(--line)}
.page-meta span{margin-right:24px}
.article{padding:34px 0 66px;max-width:880px;font-size:16px;line-height:1.75;color:var(--ink)}
.article *{font-family:inherit!important;color:inherit!important}
.article p{font-size:16px!important;line-height:1.75!important;margin:0 0 1em}
.article h1,.article h2,.article h3{font-size:22px!important;font-weight:700!important;line-height:1.65!important;margin:1.5em 0 .8em;color:var(--ink)!important}
.article img{height:auto;margin:20px 0}
.article a{color:var(--blue)!important;text-decoration:underline}
.article table{width:100%;border-collapse:collapse;margin:20px 0}
.article td,.article th{border:1px solid var(--line);padding:10px}
.article ul,.article ol{padding-left:24px;margin:0 0 1em}
.related{border-top:1px solid var(--line);padding:34px 0 74px}
.related h2{font-size:22px;font-weight:700;margin-bottom:14px}

/* 页脚 —— 浅底栏目区 + 深蓝主区 */
.footer-links{background:var(--tint);padding:52px 0 44px}
.footer-links .t{font-size:14.4px;font-weight:700;letter-spacing:.14em;color:var(--ink);text-transform:uppercase}
.footer-links .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px 32px;margin-top:20px}
.footer-links a{font-size:16px;color:var(--blue);transition:color .18s}
.footer-links a:hover{color:var(--blue)}
.footer-main{background:var(--deep);color:#FFFFFF;padding:52px 0 30px}
.footer-main .brand img{width:60px;height:60px}
.footer-main .brand .zh{color:#FFFFFF}
.footer-main .brand .en{color:rgba(255,255,255,.72)}
.footer-note{font-size:16px;color:rgba(255,255,255,.82);margin-top:22px;line-height:1.75;max-width:780px}
.footer-rule{border-top:1px solid rgba(255,255,255,.22);margin-top:34px;padding-top:18px;font-size:14.4px;color:rgba(255,255,255,.64);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-rule a:hover{color:#FFFFFF}

@media(max-width:1240px){
.wrap{padding:0 48px}
.nav{gap:16px}
.nav a{font-size:16px;padding:34px 0}
}
@media(max-width:1000px){
.wrap{padding:0 32px}
.sitehead .wrap{height:auto;padding:16px 0;flex-direction:column;align-items:flex-start;gap:14px}
.nav{width:100%;overflow-x:auto;gap:14px 18px;padding-bottom:2px}
.nav a{padding:6px 0}
.nav a.active::after{bottom:0;height:2px}
.hero{height:auto;min-height:380px;padding:64px 0}
.hero .wrap{height:auto}
.hero h1{font-size:28px}
.hero .desc{font-size:15px}
.cards{grid-template-columns:repeat(2,1fr);gap:20px}
.about{grid-template-columns:1fr;gap:28px}
.about img{height:260px}
.footer-links .grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:720px){
.wrap{padding:0 20px}
.topbar .wrap{height:40px;gap:18px;justify-content:flex-start;overflow-x:auto}
.topbar a{font-size:14px}
.hero{min-height:340px;padding:48px 0}
.hero h1{font-size:24px}
.hero-tag{font-size:14px}
.hero .desc{font-size:14.5px;line-height:1.8}
.btn{font-size:15px;padding:8px 16px}
.section{padding:48px 0}
.sec-title{font-size:28px}
.cards{grid-template-columns:1fr;margin-top:26px}
.about h2{font-size:28px}
.about img{height:220px}
.intro-text{font-size:15px}
.page-title{font-size:28px}
.article{font-size:15px}
.page-meta span{display:block;margin:0 0 6px}
.list a{gap:12px;font-size:15px}
}
a:focus-visible{outline:2px solid var(--blue);outline-offset:4px}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}