:root{
  --dai:#3b4a6b;
  --mo:#1f2a40;
  --tu:#a8503f;
  --shi:#5f8f7f;
  --ink:#e9edf6;
  --muted:#a7b2c8;
  --card:#28344e;
  --card2:#2f3d5c;
  --line:rgba(233,237,246,.14);
  --shadow:0 22px 46px rgba(12,20,38,.42);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"Segoe UI","Helvetica Neue",Arial,"Microsoft YaHei","微软雅黑","PingFang SC",sans-serif;
  background:linear-gradient(165deg,#1f2a40 0%,#3b4a6b 45%,#26314a 78%,#1f2a40 100%);
  color:var(--ink);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{width:min(1180px,92%);margin:0 auto;}
section{padding:64px 0;position:relative;}
h1,h2,h3,h4{line-height:1.35;font-weight:700;}

/* 顶部导航 */
.topbar{
  position:sticky;top:0;z-index:60;
  background:rgba(23,32,52,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0;flex-wrap:wrap;}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:1px;}
.logo .mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(140deg,var(--tu),#7d3a30);
  display:flex;align-items:center;justify-content:center;font-size:18px;
  box-shadow:0 8px 18px rgba(168,80,63,.35);
}
.nav-links{display:flex;gap:6px;flex-wrap:wrap;}
.nav-links a{
  padding:8px 16px;border-radius:999px;font-size:15px;color:var(--muted);
  border:1px solid transparent;transition:.25s;
}
.nav-links a:hover,.nav-links a:focus{color:#fff;background:rgba(95,143,127,.22);border-color:rgba(95,143,127,.5);}

/* 区块标题 */
.sec-head{margin-bottom:34px;}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:3px;color:var(--shi);
  border:1px solid rgba(95,143,127,.5);padding:4px 14px;border-radius:999px;margin-bottom:14px;
}
.sec-head h2{font-size:30px;letter-spacing:1px;}
.sec-head p{color:var(--muted);margin-top:10px;max-width:760px;}

/* HERO */
#hero{
  padding-top:56px;
  background:
    radial-gradient(circle at 78% 20%,rgba(168,80,63,.24),transparent 45%),
    radial-gradient(circle at 12% 80%,rgba(95,143,127,.22),transparent 48%),
    linear-gradient(160deg,rgba(31,42,64,.35),rgba(59,74,107,.35));
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;}
.hero-card{
  background:linear-gradient(150deg,var(--card),var(--card2));
  border:1px solid var(--line);border-radius:30px;overflow:hidden;box-shadow:var(--shadow);
  position:relative;
}
.hero-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(45deg,rgba(255,255,255,.03) 0 2px,transparent 2px 7px);
}
.hero-card img{aspect-ratio:16/10;object-fit:cover;border-radius:30px 30px 0 0;filter:saturate(.85) contrast(1.05);}
.hero-body{padding:30px 32px 34px;position:relative;z-index:2;}
.hero-body h2{font-size:28px;margin-bottom:12px;}
.hero-body p{color:var(--muted);}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px;}
.badge{font-size:13px;padding:6px 14px;border-radius:999px;background:rgba(95,143,127,.18);border:1px solid rgba(95,143,127,.45);}
.badge.tu{background:rgba(168,80,63,.18);border-color:rgba(168,80,63,.5);}
.geo-\boxed{
  background:linear-gradient(150deg,rgba(47,61,92,.9),rgba(31,42,64,.9));
  border:1px solid var(--line);border-radius:26px;padding:34px 32px;box-shadow:var(--shadow);
}
.geo-box h2{font-size:24px;margin-bottom:16px;}
.geo-box p{color:#c6cee0;font-size:15.5px;text-align:justify;}
.geo-box p+p{margin-top:14px;}

/* 三列卡片 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.card{
  background:linear-gradient(160deg,var(--card),#24304a);
  border:1px solid var(--line);border-radius:26px;overflow:hidden;
  box-shadow:0 18px 38px rgba(12,20,38,.38);position:relative;
  display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s;
}
.card::before{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:1;
  background:repeating-linear-gradient(-38deg,rgba(255,255,255,.035) 0 1px,transparent 1px 6px);
  opacity:.8;
}
.card:hover{transform:translateY(-6px);box-shadow:0 26px 52px rgba(10,17,34,.5);}
.card-img{position:relative;overflow:hidden;}
.card-img img{aspect-ratio:4/5;object-fit:cover;border-radius:26px 26px 0 0;filter:saturate(.8) contrast(1.06);transition:.4s;}
.card:hover .card-img img{transform:scale(1.05);filter:saturate(.95) contrast(1.1);}
.tag{
  position:absolute;top:14px;left:14px;z-index:3;font-size:12px;letter-spacing:1px;
  padding:5px 12px;border-radius:999px;background:rgba(31,42,64,.85);
  border:1px solid rgba(95,143,127,.55);color:#bcd6cb;
}
.tag.tu{border-color:rgba(168,80,63,.6);color:#e6b4aa;}
.card-body{padding:22px 22px 26px;position:relative;z-index:2;flex:1;display:flex;flex-direction:column;}
.card-body h3{font-size:18px;margin-bottom:10px;}
.card-body p{font-size:14.5px;color:var(--muted);}
.card-body .more{margin-top:auto;padding-top:16px;font-size:14px;color:var(--shi);}

/* 数据统计 */
#stats{background:rgba(31,42,64,.5);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.stat{
  background:linear-gradient(150deg,rgba(59,74,107,.7),rgba(31,42,64,.75));
  border:1px solid var(--line);border-radius:24px;padding:26px 22px;text-align:center;box-shadow:var(--shadow);
}
.stat b{display:block;font-size:38px;color:#f0e6df;letter-spacing:1px;}
.stat span{font-size:14px;color:var(--muted);}

/* 列表型 */
.list{display:grid;gap:16px;}
.row{
  display:flex;gap:18px;align-items:flex-start;
  background:linear-gradient(150deg,rgba(47,61,92,.75),rgba(31,42,64,.75));
  border:1px solid var(--line);border-radius:22px;padding:20px 22px;
}
.row .num{
  min-width:44px;height:44px;border-radius:14px;background:rgba(168,80,63,.2);
  border:1px solid rgba(168,80,63,.5);display:flex;align-items:center;justify-content:center;font-weight:700;
}
.row h3{font-size:17px;margin-bottom:6px;}
.row p{font-size:14.5px;color:var(--muted);}

/* 时间线 */
.timeline{position:relative;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--shi),var(--tu));}
.tl-item{position:relative;padding:0 0 26px 18px;}
.tl-item::before{
  content:"";position:absolute;left:-26px;top:8px;width:14px;height:14px;border-radius:50%;
  background:var(--mo);border:3px solid var(--shi);
}
.tl-item h4{font-size:17px;margin-bottom:6px;}
.tl-item p{color:var(--muted);font-size:14.5px;}

/* 覆盖 */
.cover-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.cover{
  background:linear-gradient(150deg,rgba(59,74,107,.6),rgba(31,42,64,.7));
  border:1px solid var(--line);border-radius:22px;padding:24px;
}
.cover .ico{font-size:26px;margin-bottom:10px;}
.cover h3{font-size:17px;margin-bottom:8px;}
.cover p{font-size:14px;color:var(--muted);}

/* 新闻 */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-item{
  background:linear-gradient(160deg,var(--card),#24304a);
  border:1px solid var(--line);border-radius:24px;padding:24px 24px 26px;box-shadow:0 16px 34px rgba(12,20,38,.34);
  display:flex;flex-direction:column;gap:10px;transition:.3s;
}
.news-item:hover{transform:translateY(-5px);border-color:rgba(95,143,127,.5);}
.news-item .date{font-size:13px;color:var(--tu);letter-spacing:.5px;}
.news-item h3{font-size:17.5px;}
.news-item p{font-size:14.5px;color:var(--muted);text-align:justify;}
.news-item .cat{font-size:12px;color:var(--shi);border:1px solid rgba(95,143,127,.45);border-radius:999px;padding:3px 10px;align-self:flex-start;}

/* FAQ */
.faq-list{display:grid;gap:16px;}
details.faq{
  background:linear-gradient(150deg,rgba(47,61,92,.8),rgba(31,42,64,.8));
  border:1px solid var(--line);border-radius:22px;padding:20px 24px;
}
details.faq summary{
  cursor:pointer;list-style:none;font-size:17px;font-weight:700;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
details.faq summary::-webkit-details-marker{display:none;}
details.faq summary::after{content:"＋";color:var(--shi);font-size:20px;}
details.faq[open] summary::after{content:"－";}
details.faq p{margin-top:14px;color:var(--muted);font-size:15px;text-align:justify;}

/* CTA */
#cta{
  background:
    radial-gradient(circle at 20% 30%,rgba(168,80,63,.3),transparent 50%),
    radial-gradient(circle at 80% 70%,rgba(95,143,127,.28),transparent 50%),
    linear-gradient(140deg,#26314a,#3b4a6b);
  border-top:1px solid var(--line);
}
.cta-\boxed{text-align:center;max-width:820px;margin:0 auto;}
.cta-box h2{font-size:32px;margin-bottom:14px;}
.cta-box p{color:#cdd5e5;}
.btn-row{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:26px;}
.btn{
  padding:14px 34px;border-radius:999px;font-weight:700;font-size:15.5px;transition:.25s;
  background:linear-gradient(140deg,var(--tu),#7d3a30);box-shadow:0 14px 30px rgba(168,80,63,.35);
}
.btn.alt{background:linear-gradient(140deg,var(--shi),#3f6a5c);box-shadow:0 14px 30px rgba(95,143,127,.3);}
.btn:hover{transform:translateY(-3px);filter:brightness(1.08);}

/* 页脚 */
footer{
  background:linear-gradient(180deg,#1a2334,#141c2b);
  border-top:1px solid var(--line);padding:48px 0 30px;font-size:14.5px;color:var(--muted);
}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:34px;margin-bottom:30px;}
.foot-grid h4{color:var(--ink);font-size:16px;margin-bottom:12px;}
.foot-grid a{display:block;padding:5px 0;color:var(--muted);}
.foot-grid a:hover{color:var(--shi);}
.foot-info p{margin-bottom:6px;}
.foot-bottom{border-top:1px solid var(--line);padding-top:20px;text-align:center;font-size:14px;}
.foot-bottom a{color:var(--shi);}

@media(max-width:960px){
  .grid-3,.news-list,.cover-grid{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .hero-grid,.foot-grid{grid-template-columns:1fr;}
  .sec-head h2{font-size:25px;}
}
@media(max-width:640px){
  .grid-3,.news-list,.cover-grid,.stat-grid{grid-template-columns:1fr;}
  section{padding:46px 0;}
  .cta-box h2{font-size:25px;}
}