*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --color-primary:#0A1F44;
  --color-accent:#D4AF37;
  --color-bg:#FFFFFF;
  --color-dark:#050B1C;
  --color-aux:#E4E9F2;
  --color-text:#1A2233;
  --color-text-secondary:#606A7B;
  --color-warning:#B89B2B;
  --font-heading:'Montserrat','Helvetica Neue','PingFang SC','Microsoft YaHei',sans-serif;
  --font-body:'Noto Sans SC','PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
  --header-height:80px;
  --radius-capsule:999px;
  --shadow-capsule:0 10px 40px rgba(5,11,28,0.4);
  --transition-base:0.25s ease;
  --container-width:1160px;
  --z-header:120;
  --z-skip:300;
  --z-backtop:90;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  color:var(--color-text);
  background:var(--color-bg);
  padding-top:calc(var(--header-height) + 28px);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
ul,ol{list-style:none}
a{color:var(--color-primary);text-decoration:none;transition:color 0.2s ease}
a:hover{color:var(--color-accent)}
button{font-family:inherit;border:none;background:none;cursor:pointer}
:focus-visible{outline:3px solid rgba(212,175,55,0.7);outline-offset:2px;border-radius:2px}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.2;color:var(--color-primary)}
h1{font-size:56px;letter-spacing:-0.02em}
h2{font-size:36px;letter-spacing:-0.01em}
h3{font-size:24px}
h4{font-size:18px}
p{max-width:65ch}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{
  position:fixed;top:-120px;left:16px;z-index:var(--z-skip);
  background:var(--color-accent);color:var(--color-primary);
  padding:10px 20px;border-radius:8px;font-weight:600;
  box-shadow:0 4px 16px rgba(5,11,28,0.2);transition:top 0.25s ease;
}
.skip-link:focus{top:16px}
.container{
  width:min(100% - 48px,var(--container-width));
  margin-inline:auto;
}
.section{padding:72px 0}
.section-heading{
  display:flex;align-items:center;gap:16px;
  margin-bottom:12px;font-size:36px;
}
.section-heading::before{
  content:"";display:block;width:32px;height:4px;
  background:var(--color-accent);border-radius:2px;
}
.section-subtitle{
  color:var(--color-text-secondary);
  font-size:15px;margin-bottom:32px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 32px;border-radius:8px;
  font-family:var(--font-body);font-size:15px;font-weight:600;
  text-align:center;text-decoration:none;cursor:pointer;
  border:1px solid transparent;
  transition:background 0.25s ease,color 0.25s ease,box-shadow 0.25s ease,transform 0.15s ease;
}
.btn:active{transform:scale(0.97)}
.btn-primary{background:var(--color-accent);color:var(--color-primary)}
.btn-primary:hover{background:#e2c24f;color:var(--color-primary);box-shadow:0 6px 24px rgba(212,175,55,0.4)}
.btn-ghost{background:transparent;border-color:var(--color-accent);color:var(--color-accent)}
.btn-ghost:hover{background:var(--color-accent);color:var(--color-primary)}
.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--color-text-secondary);
  padding:16px 0;
}
.breadcrumbs li+li::before{content:"→";color:var(--color-accent);margin-right:8px}
.breadcrumbs a{color:var(--color-text-secondary)}
.breadcrumbs a:hover{color:var(--color-accent)}
.card-grid{display:grid;gap:28px;grid-template-columns:repeat(3,1fr)}
.card{
  background:var(--color-bg);
  border:1px solid var(--color-aux);
  border-radius:12px;
  padding:28px;
  box-shadow:0 2px 8px rgba(5,11,28,0.04);
  transition:transform 0.25s ease,box-shadow 0.25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(5,11,28,0.08)}
.card-title{font-size:18px;margin-bottom:8px}
.card-text{color:var(--color-text-secondary);font-size:14px}
.panel-cut{
  position:relative;background:var(--color-primary);color:#fff;
  border-radius:4px 16px 4px 16px;padding:32px;
  overflow:hidden;
}
.panel-cut::after{
  content:"";position:absolute;right:0;top:0;
  border-left:36px solid transparent;border-top:36px solid var(--color-accent);
}
.panel-cut .section-heading{color:#fff}
.panel-cut .section-heading::before{background:var(--color-accent)}
.media-frame{
  display:block;width:100%;aspect-ratio:16/9;
  background:linear-gradient(135deg,var(--color-aux),#cfd6e4);
  border-radius:8px;overflow:hidden;
}
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:var(--z-header);
  padding:14px 20px 6px;
  pointer-events:none;
}
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--color-accent),#e8cf6e);
  border-radius:0 3px 3px 0;
  z-index:calc(var(--z-header) + 1);
  transition:width 0.12s linear;
}
.header-capsule{
  max-width:1080px;margin:0 auto;
  background:rgba(10,31,68,0.88);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(212,175,55,0.3);
  border-radius:var(--radius-capsule);
  padding:8px 22px 8px 18px;
  box-shadow:var(--shadow-capsule);
  pointer-events:auto;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
  transition:border-radius 0.3s ease,box-shadow 0.3s ease;
}
.header-capsule::before{
  content:"";position:absolute;left:8px;top:50%;
  width:3px;height:18px;border-radius:2px;
  background:linear-gradient(180deg,var(--color-accent),transparent);
  transform:translateY(-50%);
}
.header-top{
  display:flex;align-items:center;gap:14px;flex-shrink:0;
}
.brand{
  display:flex;align-items:center;gap:10px;
  text-decoration:none;
}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;
  background:var(--color-accent);color:var(--color-primary);
  font-family:var(--font-heading);font-weight:700;font-size:18px;
  box-shadow:inset 0 -2px 0 rgba(5,11,28,0.15);
}
.brand-name{
  font-family:var(--font-heading);font-weight:700;
  font-size:20px;letter-spacing:0.06em;color:#fff;
  line-height:1;
}
.brand-tag{
  font-size:11px;color:var(--color-accent);letter-spacing:0.08em;
  padding:2px 8px;border:1px solid rgba(212,175,55,0.5);border-radius:999px;
  line-height:1.4;
}
.site-nav{
  display:flex;align-items:center;gap:4px;
}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-list-primary{}
.nav-list-secondary{border-left:1px solid rgba(255,255,255,0.16);padding-left:10px;margin-left:6px}
.nav-divider{
  display:none;width:1px;height:24px;
  background:linear-gradient(180deg,transparent,rgba(255,255,255,0.28),transparent);
}
.nav-link{
  display:inline-flex;align-items:center;
  padding:8px 15px;border-radius:999px;
  font-size:14px;font-weight:500;
  color:rgba(255,255,255,0.88);
  white-space:nowrap;
  transition:background 0.2s ease,color 0.2s ease,box-shadow 0.2s ease;
}
.nav-link:hover{background:rgba(212,175,55,0.14);color:var(--color-accent)}
.nav-link[aria-current="page"]{
  background:var(--color-accent);color:var(--color-primary);
  font-weight:600;box-shadow:0 2px 10px rgba(212,175,55,0.35);
}
.nav-link-cta{
  border:1px solid rgba(212,175,55,0.5);
  color:var(--color-accent);
}
.nav-link-cta:hover{
  background:rgba(212,175,55,0.18);border-color:var(--color-accent);
  color:var(--color-accent);
}
.nav-toggle{
  display:none;position:relative;
  width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(212,175,55,0.3);
  align-items:center;justify-content:center;
  flex-direction:column;gap:5px;
  transition:background 0.2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,0.14)}
.nav-toggle-line{
  display:block;width:18px;height:2px;border-radius:2px;
  background:var(--color-accent);
  transition:transform 0.25s ease,opacity 0.25s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.site-footer{
  position:relative;
  background:var(--color-dark);
  color:rgba(255,255,255,0.78);
  padding:64px 24px 0;
  margin-top:96px;
}
.footer-ornament{
  position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--color-primary),var(--color-accent) 40%,transparent);
}
.footer-content{
  max-width:var(--container-width);
  margin:0 auto;
  display:grid;
  grid-template-columns:1.3fr 0.8fr 0.8fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand-block{}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  margin-bottom:16px;
}
.footer-brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;
  background:var(--color-accent);color:var(--color-primary);
  font-family:var(--font-heading);font-weight:700;font-size:18px;
}
.footer-brand-name{
  font-family:var(--font-heading);font-weight:700;
  font-size:20px;letter-spacing:0.06em;color:#fff;
}
.footer-trust{
  font-size:13px;line-height:1.7;
  color:rgba(255,255,255,0.55);
  max-width:30ch;
}
.footer-col h3{
  color:rgba(255,255,255,0.92);
  font-size:15px;font-weight:600;
  letter-spacing:0.04em;
  margin-bottom:18px;
  position:relative;
  padding-bottom:8px;
}
.footer-col h3::after{
  content:"";display:block;width:22px;height:2px;
  background:var(--color-accent);margin-top:8px;
}
.footer-links li{margin-bottom:8px}
.footer-links a{
  color:rgba(255,255,255,0.62);
  font-size:14px;
  transition:color 0.2s ease,padding-left 0.2s ease;
}
.footer-links a:hover{
  color:var(--color-accent);padding-left:4px;
}
.footer-contact-line{
  font-size:13px;line-height:1.7;
  color:rgba(255,255,255,0.62);
  margin-bottom:6px;
}
.footer-alert{
  margin-top:14px;
  font-size:12px;line-height:1.6;
  color:rgba(212,175,55,0.72);
  border-left:2px solid var(--color-accent);
  padding-left:10px;
  max-width:34ch;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.1);
  max-width:var(--container-width);
  margin:0 auto;
  padding:20px 0 24px;
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:8px;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,0.4)}

.back-top{
  position:fixed;right:24px;bottom:40px;z-index:var(--z-backtop);
  width:52px;height:52px;border-radius:50%;
  background:var(--color-primary);
  border:1px solid rgba(212,175,55,0.6);
  box-shadow:0 8px 28px rgba(5,11,28,0.5);
  color:var(--color-accent);font-size:20px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(16px);
  transition:opacity 0.3s ease,transform 0.3s ease,visibility 0.3s ease,background 0.2s ease,color 0.2s ease;
}
.back-top::before{
  content:"↑";font-size:22px;font-weight:700;
}
.back-top[data-visible="true"]{
  opacity:1;visibility:visible;transform:translateY(0);
}
.back-top:hover{background:var(--color-accent);color:var(--color-primary)}
.back-top:active{transform:scale(0.94)}

@media (max-width:992px){
  body{padding-top:calc(var(--header-height) + 16px)}
  .header-capsule{
    flex-wrap:wrap;
    border-radius:24px;
    padding:10px 16px 10px 14px;
  }
  .header-capsule[data-open="true"]{
    box-shadow:0 16px 48px rgba(5,11,28,0.55);
  }
  .nav-toggle{display:flex}
  .site-nav{
    display:none;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    border-top:1px solid rgba(255,255,255,0.12);
    margin-top:12px;
    padding-top:10px;
    padding-bottom:6px;
  }
  .header-capsule[data-open="true"] .site-nav{
    display:flex;
    animation:navIn 0.28s ease;
  }
  @keyframes navIn{
    from{opacity:0;transform:translateY(-10px)}
    to{opacity:1;transform:translateY(0)}
  }
  .nav-list{
    flex-direction:column;align-items:stretch;gap:0;
  }
  .nav-list-secondary{
    border-left:none;
    padding-left:0;margin-left:0;
    border-top:1px solid rgba(255,255,255,0.1);
    margin-top:8px;padding-top:8px;
  }
  .nav-item{width:100%}
  .nav-link{
    width:100%;
    justify-content:flex-start;
    padding:12px 16px;
    border-radius:12px;
  }
  .nav-link-cta{margin-top:4px}
  .brand-tag{display:none}
  .footer-content{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
  .footer-brand-block{grid-column:1 / -1}
}
@media (max-width:576px){
  h1{font-size:36px}
  h2{font-size:28px}
  .section{padding:48px 0}
  .header-capsule{padding:8px 12px}
  .brand-mark{width:32px;height:32px;font-size:15px}
  .brand-name{font-size:17px}
  .nav-link{padding:11px 14px}
  .footer-content{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .card-grid{grid-template-columns:1fr}
  .back-top{right:16px;bottom:24px;width:46px;height:46px}
}
@media (max-width:1200px){
  .header-capsule{max-width:100%}
  .nav-link{padding:8px 11px;font-size:13px}
  .brand-tag{display:none}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:0.01ms !important;transition-duration:0.01ms !important}
  .header-capsule[data-open="true"] .site-nav{animation:none}
  .back-top::before{content:"↑"}
}