:root{
  --blue-900:#08203c;
  --blue-800:#0e3a66;
  --blue-600:#185FA5;
  --blue-500:#3b82f6;
  --blue-100:#E6F1FB;
  --ink:#1f2d3d;
  --muted:#6b7a8d;
  --line:#e3e9f2;
  --radius:16px;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:-apple-system,"Segoe UI",Roboto,"Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:18px;color:var(--blue-800);}
.brand-mark{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--blue-500),var(--blue-600));box-shadow:0 4px 12px rgba(24,95,165,.4);}
.brand-logo{height:34px;width:auto;max-height:34px;max-width:170px;object-fit:contain;flex-shrink:0;border-radius:6px;}
.nav-menu{display:flex;gap:26px;}
.nav-menu a{font-size:15px;color:#44566b;padding:6px 0;position:relative;transition:color .2s;}
.nav-menu a:hover,.nav-menu a.active{color:var(--blue-600);}
.nav-menu a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--blue-600);}
.nav-toggle{display:none;background:none;border:0;font-size:24px;color:var(--blue-800);cursor:pointer;}

/* ===== Hero ===== */
.hero{position:relative;min-height:440px;display:flex;align-items:center;overflow:hidden;background:var(--blue-800);}
.hero-slides{position:absolute;inset:0;}
.hero-slides .slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1s ease;}
.hero-slides .slide.active{opacity:1;}
.hero-slides .slide-default{background:linear-gradient(135deg,var(--blue-800),var(--blue-900));opacity:1;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(8,32,60,.82),rgba(14,58,102,.55));}
.hero-inner{position:relative;z-index:2;color:#fff;padding:60px 0;}
.hero-inner h1{font-size:46px;font-weight:700;letter-spacing:1px;text-shadow:0 2px 20px rgba(0,0,0,.3);}
.hero-slogan{font-size:20px;margin-top:10px;color:#bcd9f5;font-weight:300;}
.hero-intro{font-size:15px;margin-top:14px;max-width:560px;color:#d6e6f7;}
.hero-inner .btn-primary{margin-top:26px;}

/* ===== Buttons ===== */
.btn-primary{display:inline-block;background:var(--blue-500);color:#fff;padding:12px 26px;border-radius:30px;font-size:15px;font-weight:500;box-shadow:0 8px 22px rgba(59,130,246,.45);transition:transform .2s,box-shadow .2s;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(59,130,246,.55);}
.btn-ghost{display:inline-block;color:var(--blue-600);font-size:14px;font-weight:500;border:1px solid var(--blue-600);padding:9px 20px;border-radius:30px;transition:background .2s,color .2s;}
.btn-ghost:hover{background:var(--blue-600);color:#fff;}

/* ===== Sections ===== */
.section{padding:64px 0;}
.section-alt{background:linear-gradient(180deg,#f5f9fe,#eef4fb);}
.section-title{font-size:28px;color:var(--blue-800);margin-bottom:28px;text-align:center;font-weight:600;}
.section-title.left{text-align:left;}

/* ===== Cards ===== */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px;}
.glass-card{background:rgba(255,255,255,.7);border:1px solid rgba(255,255,255,.6);border-radius:var(--radius);padding:20px;backdrop-filter:blur(10px);box-shadow:0 10px 30px rgba(20,50,90,.08);transition:transform .25s,box-shadow .25s;}
.glass-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(20,50,90,.14);}
.glass-card h3{font-size:18px;color:var(--blue-800);margin-bottom:8px;}
.glass-card p{font-size:14px;color:var(--muted);}
.card-img{width:100%;height:160px;object-fit:cover;border-radius:12px;margin-bottom:14px;}
.map-frame{width:100%;height:300px;border:0;border-radius:12px;margin-top:12px;box-shadow:0 4px 16px rgba(20,50,90,.1);}
.map-tip{font-size:13px;color:var(--muted);margin-top:8px;}
.glass-card .more{margin-top:8px;color:var(--blue-600);font-size:13px;}

/* ===== News list (home) ===== */
.news-list{display:flex;flex-direction:column;gap:2px;max-width:780px;margin:0 auto;}
.news-item{display:flex;align-items:center;gap:18px;padding:16px 18px;border-radius:12px;background:#fff;border:1px solid var(--line);transition:background .2s,transform .2s;}
.news-item:hover{background:var(--blue-100);transform:translateX(4px);}
.news-date{font-size:13px;color:var(--blue-600);font-weight:600;white-space:nowrap;}
.news-title{font-size:15px;color:var(--ink);}

/* ===== Page hero ===== */
.page-hero{background:linear-gradient(135deg,var(--blue-800),var(--blue-900));color:#fff;padding:54px 0;}
.page-hero h1{font-size:34px;font-weight:700;}
.page-hero p{margin-top:8px;color:#bcd9f5;font-weight:300;}

/* ===== About ===== */
.about-layout{display:grid;grid-template-columns:1fr 300px;gap:30px;align-items:start;}
.about-main .rich-text{font-size:15px;color:#415066;white-space:pre-wrap;line-height:1.9;}
.about-side h3{color:var(--blue-800);margin-bottom:14px;font-size:18px;}
.about-side p{font-size:14px;color:#55657a;margin-bottom:8px;}

/* ===== Contact ===== */
.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:30px;}
.contact-info h3{color:var(--blue-800);margin-bottom:14px;font-size:18px;}
.contact-info p{font-size:14px;color:#55657a;margin-bottom:8px;}
.map-placeholder{margin-top:16px;height:160px;border-radius:12px;background:repeating-linear-gradient(45deg,#eef3fa,#eef3fa 12px,#e3ebf6 12px,#e3ebf6 24px);display:flex;align-items:center;justify-content:center;color:#7c8ba0;font-size:13px;text-align:center;padding:0 16px;}
.contact-form input,.contact-form textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;font-size:14px;margin-bottom:14px;font-family:inherit;box-sizing:border-box;}
.contact-form textarea{resize:vertical;}
.ok-msg{color:#0f9d58;font-size:14px;margin-top:6px;}

/* ===== News grid / detail ===== */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px;}
.news-card h3{font-size:17px;color:var(--blue-800);margin:6px 0;}
.news-card p{font-size:14px;color:var(--muted);}
.news-meta{font-size:13px;color:var(--blue-600);font-weight:600;}
.news-detail{max-width:820px;padding:50px 20px;}
.news-detail h1{font-size:30px;color:var(--blue-800);margin-bottom:10px;}
.news-detail .news-meta{margin-bottom:20px;}
.detail-cover{width:100%;border-radius:14px;margin:18px 0;}
.rich-text{font-size:15px;color:#415066;white-space:pre-wrap;line-height:1.9;}

.empty{text-align:center;color:var(--muted);padding:40px;font-size:15px;}

/* ===== Footer ===== */
.site-footer{background:var(--blue-900);color:#cfe0f2;padding:46px 0 0;}
.footer-grid{max-width:1180px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;}
.footer-grid .brand{color:#fff;margin-bottom:14px;}
.f-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600;}
.f-col a{display:block;color:#aecbe8;font-size:14px;margin-bottom:8px;transition:color .2s;}
.f-col a:hover{color:#fff;}
.f-intro{font-size:13px;color:#9fb8d4;line-height:1.7;}
.copyright{text-align:center;padding:20px;margin-top:36px;font-size:13px;color:#7e98b6;border-top:1px solid rgba(255,255,255,.1);}

/* ===== Responsive ===== */
@media (max-width:860px){
  .nav-toggle{display:block;}
  .nav-menu{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:8px 0;}
  .nav-menu.open{display:flex;}
  .nav-menu a{padding:12px 20px;}
  .hero-inner h1{font-size:34px;}
  .about-layout,.contact-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:22px;}
  .brand-logo{height:28px;max-height:28px;max-width:130px;}
}