:root{
  --silver:#94a3b8;
  --deep:#0f172a;
  --deep2:#111e35;
  --sky:#38bdf8;
  --bright:#e2e8f0;
  --line:rgba(148,163,184,.28);
}
*{margin:0;padding:0;box-sizing:border-box;}
html,body{scroll-behavior:smooth;}
body{
  font-family:"Segoe UI","Helvetica Neue",Arial,"Microsoft YaHei","微软雅黑","PingFang SC",sans-serif;
  background:
    radial-gradient(circle at 12% 8%, rgba(56,189,248,.14), transparent 45%),
    radial-gradient(circle at 88% 82%, rgba(148,163,184,.16), transparent 50%),
    linear-gradient(160deg,#0b1220 0%,#0f172a 45%,#111e35 100%);
  color:#cbd5e1;
  line-height:1.8;
  min-height:100vh;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,span,a,li,div,section,footer,header,strong,em,summary,time{font-family:inherit;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.wrap{width:min(1200px,92%);margin:0 auto;}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,18,32,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:0 8px 30px rgba(0,0,0,.45);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:14px 0;flex-wrap:wrap;
}
.logo{
  display:flex;align-items:center;gap:12px;
  font-size:1.18rem;font-weight:800;letter-spacing:.06em;
  color:#f1f5f9;
}
.logo-badge{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;font-size:1.15rem;
  background:linear-gradient(140deg,#94a3b8,#0f172a 70%);
  border:1px solid rgba(226,232,240,.4);
  box-shadow:0 0 16px rgba(56,189,248,.35), inset 0 1px 0 rgba(255,255,255,.35);
}
.logo small{display:block;font-size:.62rem;letter-spacing:.24em;color:var(--sky);font-weight:600;}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.nav-links a{
  padding:8px 14px;border-radius:9px;font-size:.9rem;font-weight:600;
  color:#cbd5e1;border:1px solid transparent;transition:.25s;
}
.nav-links a:hover{
  color:#f8fafc;background:rgba(56,189,248,.12);
  border-color:rgba(56,189,248,.45);
  box-shadow:0 0 14px rgba(56,189,248,.28);
}

/* ============ COMMON ============ */
section{padding:64px 0;position:relative;}
.sec-head{margin-bottom:34px;max-width:820px;}
.sec-tag{
  display:inline-block;font-size:.72rem;letter-spacing:.22em;font-weight:700;
  color:var(--sky);text-transform:uppercase;
  padding:5px 12px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.34);
  margin-bottom:14px;
}
.sec-head h2{
  font-size:clamp(1.4rem,2.6vw,2rem);color:#f1f5f9;font-weight:800;letter-spacing:.02em;
}
.sec-head h2 span{color:var(--sky);}
.sec-head p{margin-top:12px;color:#94a3b8;font-size:.95rem;}

.card{
  background:linear-gradient(150deg,rgba(30,41,59,.92),rgba(15,23,42,.96));
  border:1px solid var(--line);
  border-radius:16px;
  padding:26px;
  position:relative;
  overflow:hidden;
  transition:.3s;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06), 0 10px 26px rgba(0,0,0,.32);
}
.card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:2px;
  background:linear-gradient(90deg,transparent,#94a3b8,#38bdf8,transparent);
  opacity:.75;
}
.card:hover{
  transform:translateY(-5px);
  border-color:rgba(56,189,248,.55);
  box-shadow:0 16px 36px rgba(2,132,199,.22), inset 0 1px 0 rgba(255,255,255,.1);
}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:26px;}
.btn{
  display:inline-block;padding:12px 26px;border-radius:10px;font-weight:700;font-size:.9rem;
  background:linear-gradient(120deg,#94a3b8,#38bdf8);
  color:#0b1220;border:1px solid rgba(226,232,240,.5);
  box-shadow:0 8px 22px rgba(56,189,248,.3);transition:.25s;
}
.btn:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(56,189,248,.5);}
.btn-ghost{
  background:transparent;color:#e2e8f0;
  border:1px solid rgba(148,163,184,.5);box-shadow:none;
}
.btn-ghost:hover{border-color:var(--sky);color:#fff;box-shadow:0 0 20px rgba(56,189,248,.3);}

/* ============ HERO ============ */
#hero{padding:0;}
.hero-box{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(115deg,rgba(15,23,42,.94),rgba(17,30,53,.72)),
    radial-gradient(circle at 78% 22%,rgba(56,189,248,.28),transparent 55%);
}
.hero-inner{
  display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;
  padding:70px 0 76px;
}
.hero-text h1{
  font-size:clamp(1.55rem,3.4vw,2.6rem);line-height:1.32;font-weight:800;color:#f8fafc;
  letter-spacing:.01em;margin-bottom:18px;
}
.hero-text h1 em{
  font-style:normal;
  background:linear-gradient(90deg,#e2e8f0,#38bdf8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.hero-badges span{
  font-size:.76rem;font-weight:700;letter-spacing:.08em;
  padding:6px 13px;border-radius:999px;color:#bae6fd;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.36);
}
.hero-text p{color:#a8b6c9;font-size:1rem;margin-bottom:16px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px;}
.hero-figure{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid rgba(148,163,184,.42);
  box-shadow:0 24px 60px rgba(0,0,0,.55), 0 0 40px rgba(56,189,248,.18);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,transparent 40%,rgba(15,23,42,.72));
}

/* ============ GEO ============ */
#geo-intro .geo-panel{
  background:linear-gradient(140deg,rgba(30,41,59,.86),rgba(15,23,42,.92));
  border:1px solid var(--line);border-left:3px solid var(--sky);
  border-radius:14px;padding:30px 32px;
  box-shadow:0 14px 34px rgba(0,0,0,.35);
}
#geo-intro p{color:#b6c4d6;font-size:.97rem;margin-bottom:14px;}
#geo-intro p:last-child{margin-bottom:0;}

/* ============ STATS ============ */
#data-stats{background:linear-gradient(180deg,rgba(15,23,42,.4),rgba(17,30,53,.72));border-block:1px solid var(--line);}
.stat-card{text-align:center;padding:26px 18px;}
.stat-num{
  font-size:2.05rem;font-weight:800;letter-spacing:.02em;
  background:linear-gradient(90deg,#e2e8f0,#38bdf8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{margin-top:6px;font-size:.85rem;color:#94a3b8;letter-spacing:.06em;}

/* ============ ADVANTAGES ============ */
.adv-icon{
  width:48px;height:48px;border-radius:12px;display:grid;place-items:center;font-size:1.35rem;
  background:linear-gradient(140deg,rgba(148,163,184,.28),rgba(56,189,248,.18));
  border:1px solid rgba(148,163,184,.4);margin-bottom:16px;
}
.card h3{color:#f1f5f9;font-size:1.06rem;margin-bottom:10px;font-weight:700;}
.card p{color:#94a3b8;font-size:.9rem;}

/* ============ BRAND STORY ============ */
#brand-story .story-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px;align-items:center;}
#brand-story img{border-radius:16px;border:1px solid rgba(148,163,184,.4);box-shadow:0 18px 44px rgba(0,0,0,.5);width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ============ TIMELINE ============ */
#timeline .tl{position:relative;padding-left:30px;border-left:2px solid rgba(56,189,248,.35);}
#timeline .tl-item{position:relative;margin-bottom:30px;padding-left:20px;}
#timeline .tl-item::before{
  content:"";position:absolute;left:-37px;top:8px;width:12px;height:12px;border-radius:50%;
  background:var(--sky);box-shadow:0 0 0 4px rgba(56,189,248,.18),0 0 14px rgba(56,189,248,.8);
}
#timeline .tl-item h4{color:#f1f5f9;font-size:1rem;margin-bottom:6px;}
#timeline .tl-item p{color:#94a3b8;font-size:.9rem;}

/* ============ EVENTS ============ */
.event-row{
  display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;
  padding:18px 22px;border-radius:12px;margin-bottom:14px;
  background:linear-gradient(120deg,rgba(30,41,59,.82),rgba(15,23,42,.86));
  border:1px solid var(--line);transition:.25s;
}
.event-row:hover{border-color:rgba(56,189,248,.55);transform:translateX(4px);}
.event-row .ev-name{font-weight:700;color:#e2e8f0;font-size:.98rem;}
.event-row .ev-meta{font-size:.82rem;color:#7f8fa6;}
.event-status{
  font-size:.75rem;font-weight:700;padding:4px 12px;border-radius:999px;
  color:#bae6fd;background:rgba(56,189,248,.13);border:1px solid rgba(56,189,248,.4);
}
.event-status.done{color:#cbd5e1;background:rgba(148,163,184,.14);border-color:rgba(148,163,184,.4);}

/* ============ REVIEWS ============ */
.rev-card blockquote{color:#c3d0e0;font-size:.93rem;font-style:normal;margin-bottom:16px;}
.rev-user{display:flex;align-items:center;gap:12px;}
.rev-avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-size:1rem;
  background:linear-gradient(140deg,#94a3b8,#0f172a);border:1px solid rgba(226,232,240,.4);
}
.rev-user strong{display:block;color:#e2e8f0;font-size:.88rem;}
.rev-user span{font-size:.76rem;color:#7f8fa6;}

/* ============ NEWS ============ */
#news-list .news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px;}
.news-card{padding:24px;}
.news-card time{
  display:inline-block;font-size:.76rem;color:#7dd3fc;letter-spacing:.05em;
  margin-bottom:10px;border-bottom:1px dashed rgba(56,189,248,.4);padding-bottom:3px;
}
.news-card h3{font-size:1.02rem;line-height:1.55;margin-bottom:10px;}
.news-card p{font-size:.88rem;color:#94a3b8;}

/* ============ FAQ ============ */
#faq .faq-item{
  border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden;
  background:linear-gradient(140deg,rgba(30,41,59,.8),rgba(15,23,42,.9));
}
#faq summary{
  cursor:pointer;padding:18px 22px;font-weight:700;color:#e2e8f0;font-size:.95rem;
  list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:center;
}
#faq summary::-webkit-details-marker{display:none;}
#faq summary::after{content:"＋";color:var(--sky);font-weight:700;}
#faq details[open] summary::after{content:"－";}
#faq details[open] summary{color:#7dd3fc;border-bottom:1px solid var(--line);}
#faq .faq-answer{padding:18px 22px;color:#a8b6c9;font-size:.9rem;}

/* ============ CTA ============ */
#cta .cta-box{
  text-align:center;padding:52px 28px;border-radius:20px;
  background:
    radial-gradient(circle at 50% 0%,rgba(56,189,248,.22),transparent 60%),
    linear-gradient(150deg,rgba(30,41,59,.94),rgba(15,23,42,.96));
  border:1px solid rgba(56,189,248,.36);
  box-shadow:0 0 44px rgba(56,189,248,.16);
}
#cta h2{color:#f8fafc;font-size:clamp(1.3rem,2.6vw,1.9rem);margin-bottom:14px;}
#cta p{color:#a8b6c9;max-width:720px;margin:0 auto 26px;font-size:.95rem;}

/* ============ GALLERY ============ */
#gallery .gal{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;}
#gallery img{border-radius:14px;border:1px solid rgba(148,163,184,.35);aspect-ratio:16/10;object-fit:cover;transition:.3s;}
#gallery img:hover{transform:scale(1.03);border-color:rgba(56,189,248,.6);box-shadow:0 0 26px rgba(56,189,248,.28);}

/* ============ FOOTER ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(15,23,42,.7),#080e18);
  padding:52px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;}
.site-footer h4{color:#e2e8f0;font-size:.94rem;margin-bottom:14px;letter-spacing:.08em;}
.site-footer p,.site-footer li{color:#8194ab;font-size:.85rem;line-height:1.9;}
.site-footer ul{list-style:none;}
.site-footer a:hover{color:var(--sky);}
.footer-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.81rem;color:#64748b;
}
.footer-bottom a{color:#94a3b8;}
.footer-bottom a:hover{color:var(--sky);}

@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;padding:46px 0 54px;}
  #brand-story .story-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
}