:root{
  --primary:#0d3b66; --primary2:#1d6fb8; --accent:#f4a259;
  --bg:#f6f8fb; --card:#ffffff; --border:#e3e9f0;
  --text:#26344a; --muted:#6b7c8f; --line:#eef2f6;
}
*{margin:0;padding:0;box-sizing:border-box}
.lang-toggle{background:rgba(13,59,102,.08);border:1px solid var(--border);color:var(--primary);padding:8px 14px;border-radius:8px;font-size:13px;font-weight:700;cursor:pointer;font-family:inherit;white-space:nowrap}
.lang-toggle:hover{background:rgba(13,59,102,.14)}
body{background:var(--bg);color:var(--text);font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}

/* 顶部信息条 */
.topbar{background:var(--primary);color:#cfe0f0;font-size:12.5px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;padding:7px 24px;flex-wrap:wrap;gap:6px}
.topbar a{color:#cfe0f0}
.topbar .lang span{padding:2px 8px;border-radius:4px}
.topbar .lang .on{background:var(--accent);color:#fff}

/* 导航 */
nav{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;box-shadow:0 1px 6px rgba(13,59,102,.05)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:17px;color:var(--primary)}
.logo .mark{width:40px;height:40px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--primary2));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:15px;flex-shrink:0}
.logo small{display:block;font-weight:400;font-size:11px;color:var(--muted);line-height:1.2}
.menu{display:flex;gap:4px;list-style:none}
.menu a{display:block;padding:10px 15px;font-size:15px;font-weight:600;color:var(--text);border-radius:7px;line-height:1.25}
.menu a span{display:block;font-size:10.5px;font-weight:400;color:var(--muted);text-align:center}
.menu a:hover{background:var(--line);color:var(--primary)}
.menu a.active{color:var(--primary);background:rgba(13,59,102,.07)}
.menu a.active span{color:var(--primary2)}
.nav-cta{background:var(--accent);color:#fff;padding:11px 20px;border-radius:8px;font-weight:700;font-size:14px;white-space:nowrap}
.nav-cta:hover{filter:brightness(1.05)}

/* 首页 hero */
.hero{color:#fff;padding:82px 0 72px;position:relative;overflow:hidden;background:url('img/hero.jpg') center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(6,22,40,.97) 0%,rgba(13,59,102,.86) 45%,rgba(6,22,40,.58) 100%),linear-gradient(180deg,rgba(6,22,40,.1) 0%,rgba(6,22,40,.45) 100%)}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:rgba(244,162,89,.12)}
.hero .wrap{position:relative;z-index:2}
.hero .tag{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:5px 16px;font-size:13px;margin-bottom:20px}
.hero h1{font-size:38px;font-weight:800;line-height:1.3;margin-bottom:16px;max-width:700px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .sub{font-size:16px;color:#d7e4f2;max-width:640px;margin-bottom:28px}
.hero .sub small{display:block;font-size:13px;color:#a8c0d8;margin-top:6px}
.hero-cta{display:flex;gap:14px}
.btn{display:inline-block;padding:13px 28px;border-radius:8px;font-size:15px;font-weight:700;cursor:pointer;border:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{filter:brightness(1.06)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.3)}
.hero-stats{display:flex;margin-top:42px;flex-wrap:wrap}
.hero-stats .s{flex:1;min-width:130px;padding:0 22px;border-right:1px solid rgba(255,255,255,.2)}
.hero-stats .s:first-child{padding-left:0}
.hero-stats .s:last-child{border-right:none}
.hero-stats .num{font-size:30px;font-weight:800}
.hero-stats .num em{font-style:normal;color:var(--accent);font-size:18px}
.hero-stats .lbl{font-size:13px;color:#b7cbdf;margin-top:2px}

/* 板块 */
section{padding:60px 0}
.sec-head{text-align:center;margin-bottom:36px}
.sec-tag{color:var(--primary2);font-size:13px;letter-spacing:2px;font-weight:600;text-transform:uppercase}
.sec-title{font-size:28px;font-weight:800;color:var(--primary);margin-top:6px}
.sec-title small{display:block;font-size:14px;font-weight:400;color:var(--muted);margin-top:5px}
.sec-desc{color:var(--muted);font-size:14.5px;margin-top:10px;max-width:660px;margin-left:auto;margin-right:auto}

/* 卡片 */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:28px 24px;transition:.2s}
.card:hover{box-shadow:0 6px 20px rgba(13,59,102,.08);transform:translateY(-3px)}
.card .ic{font-size:32px;margin-bottom:12px}
.card h3{font-size:17px;color:var(--primary);margin-bottom:8px}
.card h3 small{display:block;font-size:12px;color:var(--muted);font-weight:400}
.card p{font-size:13.5px;color:var(--muted)}
.card ul{list-style:none;margin-top:8px}
.card ul li{font-size:13px;color:var(--muted);padding:3px 0}
.card ul li::before{content:"· ";color:var(--accent);font-weight:700}

/* 页面 hero（子页） */
.pagehero{color:#fff;padding:58px 0;position:relative;overflow:hidden;background:url('img/hero2.jpg') center/cover no-repeat}
.pagehero::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(6,22,40,.96),rgba(13,59,102,.82))}
.pagehero .wrap{position:relative;z-index:2}
.pagehero .crumb{font-size:13px;color:#a8c0d8;margin-bottom:8px}
.pagehero h1{font-size:32px;font-weight:800}
.pagehero h1 small{display:block;font-size:14px;font-weight:400;color:#cfe0f0;margin-top:5px}

/* 页脚 */
footer{background:var(--primary);color:#b7cbdf;padding:46px 0 30px;font-size:13.5px}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.foot h4{color:#fff;font-size:15px;margin-bottom:14px}
.foot a{display:block;color:#b7cbdf;padding:3px 0}
.foot a:hover{color:var(--accent)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:20px;text-align:center;font-size:12.5px;color:#8fa8c0}