*{box-sizing:border-box}
body{margin:0;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
 color:#1a1a2e;background:#fff;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:#1b2a4a;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.nav{position:sticky;top:0;z-index:20;background:rgba(27,42,74,.97);backdrop-filter:blur(6px);color:#fff}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.nav a{color:#fff;opacity:.9;margin-left:22px;font-size:15px}
.nav a:hover,.nav a.on{opacity:1;border-bottom:2px solid #b8912f;padding-bottom:3px}
.brand{font-weight:700;font-size:17px;letter-spacing:1px}
.brand small{display:block;font-weight:400;font-size:9px;letter-spacing:2.5px;opacity:.65;text-transform:uppercase}
.hero{background:linear-gradient(160deg,#1b2a4a 0%,#2f4470 100%);color:#fff;padding:64px 0 56px;text-align:center}
.hero h1{margin:0;font-size:40px;letter-spacing:6px;font-weight:700}
.hero .en{margin-top:10px;font-size:11px;letter-spacing:3px;color:#d9c48a;text-transform:uppercase}
.hero .rule{width:120px;height:2px;background:#b8912f;margin:22px auto}
.hero p{margin:0;font-size:15px;opacity:.85}
.gala{margin:28px auto 0;max-width:640px;border:1px dashed rgba(217,196,138,.5);border-radius:14px;
 background:rgba(255,255,255,.06);padding:18px 22px}
.gala b{color:#d9c48a}
.gala .btn{display:inline-block;margin-top:12px;background:#b8912f;color:#fff;border-radius:10px;
 padding:9px 22px;font-weight:600;font-size:14px}
h2.sec{font-size:21px;margin:52px 0 6px;letter-spacing:1px}
h2.sec:after{content:"";display:block;width:44px;height:3px;background:#b8912f;margin-top:10px}
.sub{color:#8a8a96;font-size:13px;margin:0 0 22px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}
.card{border:1px solid #e8e8ee;border-radius:12px;overflow:hidden;background:#fff;
 transition:box-shadow .18s,transform .18s;display:flex;flex-direction:column}
.card:hover{box-shadow:0 8px 24px rgba(27,42,74,.13);transform:translateY(-2px)}
.card .thumb{aspect-ratio:16/10;background:#f2f3f6;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.card .body{padding:14px 16px 16px;flex:1;display:flex;flex-direction:column}
.card .date{color:#9a9aa6;font-size:12px;font-variant-numeric:tabular-nums}
.card h3{margin:6px 0 0;font-size:15.5px;line-height:1.55;font-weight:600}
.card .ex{margin-top:8px;color:#70707e;font-size:13px;line-height:1.7;
 display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
footer{margin-top:70px;background:#1b2a4a;color:#fff;padding:36px 0 30px;text-align:center;font-size:13px}
footer .en{color:#d9c48a;font-size:10px;letter-spacing:2.5px;margin-top:4px;text-transform:uppercase}
footer a{color:#d9c48a}
footer .fine{opacity:.5;font-size:11px;margin-top:16px}
/* ---- 文章详情 ---- */
.art{max-width:740px;margin:0 auto;padding:44px 20px 0}
.art h1{font-size:27px;line-height:1.45;margin:0 0 12px}
.art .meta{color:#9a9aa6;font-size:13px;padding-bottom:18px;border-bottom:1px solid #eee;
 font-variant-numeric:tabular-nums}
.art .content{margin-top:26px;font-size:16px}
.art .content img{max-width:100%;height:auto;display:block;margin:20px auto;border-radius:8px}
.art .content p,.art .content section{margin:14px 0}
.art .content span{background:transparent!important}
.back{display:inline-block;margin:36px 0 0;color:#1b2a4a;font-size:14px}
.src{margin-top:34px;padding:14px 18px;background:#f7f8fa;border-radius:10px;color:#70707e;font-size:12.5px}
@media(max-width:640px){
 .hero h1{font-size:29px;letter-spacing:3px}
 /* 🔴 导航条原来锁死 height:56px，而里面的链接在窄屏会折行 —— 折下去的那行被
    固定高度切掉（375px 上「十周年庆典」只剩半个字）。改成 min-height + 允许折行，
    并在窄屏收起英文副题（带 2.5px 字距，一个人就吃掉大半行宽）。 */
 .nav .wrap{height:auto;min-height:56px;padding-top:9px;padding-bottom:9px;flex-wrap:wrap}
 .brand small{display:none}
 .nav a{margin-left:13px;font-size:13.5px}.brand{font-size:15px}
 .art h1{font-size:22px}.grid{grid-template-columns:1fr}
 .gala .btn{margin-left:0!important;margin-top:9px}
}