*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;font-weight:300;font-size:16px;line-height:1.75;background:var(--color-bg-dark);color:var(--color-text-light);min-height:100vh}
:root{
  --color-primary:#0a1a2f;
  --color-primary-variant:#0d2b45;
  --color-accent:#d4af37;
  --color-bg-dark:#050e1a;
  --color-bg-light:#f4ebd9;
  --color-text-light:#f5f7fa;
  --color-text-dark:#1a1a1a;
  --color-mineral-gray:#7a8a8f;
  --color-moss-green:#6b7b6d;
  --color-terracotta:#b5654d;
  --font-heading:'Noto Sans SC','PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --font-body:'Noto Sans SC','PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --font-mono:'JetBrains Mono','Consolas','Courier New',monospace;
  --container-width:1200px;
  --header-height:68px;
  --border-width:2px;
  --shadow-strong:6px 6px 0 rgba(0,0,0,0.35);
  --radius:4px
}
img,svg{display:block;max-width:100%}
a{color:inherit}
button{font-family:inherit;line-height:1.15;background:none;border:none;cursor:pointer}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px;border-radius:2px}
.skip-link{position:absolute;top:-48px;left:16px;z-index:9999;padding:12px 20px;background:var(--color-accent);color:var(--color-bg-dark);font-weight:700;font-size:0.9rem;text-decoration:none;border-radius:0 0 4px 4px;transition:top 0.2s ease}
.skip-link:focus{top:0}
[data-scroll-progress]{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,rgba(212,175,55,0.5),var(--color-accent));z-index:200;border-radius:0 2px 2px 0}
.container{max-width:var(--container-width);margin:0 auto;padding:0 24px;width:100%}
.section{padding:80px 24px}
.section-header{display:flex;align-items:baseline;gap:16px;margin-bottom:32px}
.section-index{font-family:var(--font-mono);font-size:0.75rem;color:var(--color-accent);letter-spacing:0.12em;white-space:nowrap}
.section-title{font-family:var(--font-heading);font-weight:700;font-size:clamp(1.8rem,4vw,2.8rem);color:var(--color-text-light);line-height:1.2}
.section-subtitle{font-size:1rem;color:var(--color-mineral-gray);margin-top:8px}
.starfield{position:relative;background:radial-gradient(1px 1px at 20% 30%,rgba(245,247,250,0.4) 0 1px,transparent 2px),radial-gradient(1px 1px at 40% 70%,rgba(245,247,250,0.25) 0 1px,transparent 2px),radial-gradient(1.5px 1.5px at 60% 20%,rgba(212,175,55,0.45) 0 1px,transparent 2px),radial-gradient(1px 1px at 80% 50%,rgba(245,247,250,0.2) 0 1px,transparent 2px),radial-gradient(1px 1px at 10% 80%,rgba(212,175,55,0.2) 0 1px,transparent 2px),radial-gradient(1px 1px at 90% 10%,rgba(245,247,250,0.3) 0 1px,transparent 2px),radial-gradient(ellipse at 50% 0%,rgba(13,43,69,0.5) 0%,transparent 60%),linear-gradient(180deg,var(--color-bg-dark) 0%,var(--color-primary) 100%)}
.vertical-text{writing-mode:vertical-rl;letter-spacing:0.3em;font-size:0.75rem;color:var(--color-mineral-gray);text-transform:uppercase;user-select:none}
.card{border:2px solid rgba(255,255,255,0.1);background:rgba(255,255,255,0.04);border-radius:var(--radius);box-shadow:var(--shadow-strong);padding:28px}
.card--light{background:var(--color-bg-light);border-color:rgba(0,0,0,0.12);color:var(--color-text-dark)}
.card--dark{background:rgba(5,14,26,0.6);border-color:rgba(212,175,55,0.2);color:var(--color-text-light)}
.card__title{font-family:var(--font-heading);font-weight:700;font-size:1.2rem;margin-bottom:12px}
.card__body{font-size:0.95rem;line-height:1.7}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-heading);font-weight:500;font-size:0.9rem;padding:10px 22px;border:2px solid var(--color-accent);background:transparent;color:var(--color-accent);text-decoration:none;border-radius:2px;cursor:pointer;transition:background 0.2s ease,color 0.2s ease,box-shadow 0.2s ease}
.btn:hover,.btn:focus-visible{background:var(--color-accent);color:var(--color-bg-dark);box-shadow:4px 4px 0 rgba(0,0,0,0.35)}
.btn--primary{background:var(--color-accent);color:var(--color-bg-dark)}
.btn--primary:hover,.btn--primary:focus-visible{background:transparent;color:var(--color-accent)}
.btn--outline{border-color:rgba(245,247,250,0.4);color:var(--color-text-light)}
.btn--outline:hover,.btn--outline:focus-visible{background:var(--color-text-light);color:var(--color-bg-dark);border-color:var(--color-text-light)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:0.8rem;color:var(--color-mineral-gray)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(122,138,143,0.5)}
.breadcrumb a{color:var(--color-accent);text-decoration:none;transition:color 0.2s}
.breadcrumb a:hover{color:var(--color-text-light)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}[data-scroll-progress]{display:none}.site-nav,.site-nav-toggle,.card,.btn{transition:none!important}}
.site-header{position:sticky;top:0;z-index:100;background:radial-gradient(ellipse at 20% -50%,rgba(212,175,55,0.12) 0%,transparent 60%),radial-gradient(1px 1px at 25% 40%,rgba(245,247,250,0.3) 0 1px,transparent 2px),radial-gradient(1px 1px at 75% 20%,rgba(212,175,55,0.3) 0 1px,transparent 2px),linear-gradient(180deg,rgba(5,14,26,0.98) 0%,rgba(10,26,47,0.94) 100%);border-bottom:2px solid rgba(212,175,55,0.35)}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:1440px;margin:0 auto;padding:0 24px;min-height:var(--header-height);position:relative}
.site-brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0}
.site-brand__mark{width:36px;height:36px;background:linear-gradient(135deg,var(--color-accent) 0%,#b8952e 100%);clip-path:polygon(50% 0%,100% 25%,100% 75%,50% 100%,0% 75%,0% 25%);box-shadow:0 0 12px rgba(212,175,55,0.4);transition:transform 0.2s ease}
.site-brand:hover .site-brand__mark{transform:rotate(15deg)}
.site-brand__name{font-family:var(--font-heading);font-weight:700;font-size:1.1rem;letter-spacing:0.06em;color:var(--color-text-light);white-space:nowrap}
.site-brand__name em{font-style:normal;color:var(--color-accent)}
.site-nav{flex:1;display:flex;justify-content:center}
.site-nav__list{display:flex;align-items:center;gap:2px}
.site-nav__link{display:flex;align-items:baseline;gap:4px;padding:10px 12px;font-size:0.82rem;font-weight:400;letter-spacing:0.04em;color:rgba(245,247,250,0.72);text-decoration:none;border-bottom:2px solid transparent;border-radius:2px 2px 0 0;transition:color 0.2s ease,border-color 0.2s ease,background 0.2s ease}
.site-nav__link:hover,.site-nav__link:focus-visible{color:var(--color-text-light);border-bottom-color:var(--color-accent);background:rgba(212,175,55,0.08)}
.site-nav__link[aria-current="page"]{color:var(--color-accent);border-bottom-color:var(--color-accent);background:rgba(212,175,55,0.12)}
.site-nav__index{font-family:var(--font-mono);font-size:0.58rem;color:var(--color-accent);opacity:0.7;letter-spacing:0.08em}
.site-nav__label{line-height:1.2}
.site-header__meta{display:flex;align-items:center;gap:6px;flex-shrink:0}
.site-quick-link{display:inline-flex;align-items:center;gap:4px;font-size:0.76rem;font-weight:400;color:var(--color-text-light);text-decoration:none;padding:6px 10px;border:1px solid rgba(212,175,55,0.3);border-radius:2px;transition:background 0.2s ease,border-color 0.2s ease,color 0.2s ease}
.site-quick-link:hover,.site-quick-link:focus-visible{background:rgba(212,175,55,0.12);border-color:var(--color-accent)}
.site-quick-link__arrow{color:var(--color-accent);font-size:0.9rem;line-height:1}
.site-nav-toggle{display:none;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:8px 12px;border:1px solid rgba(245,247,250,0.25);border-radius:2px;background:rgba(0,0,0,0.2);transition:border-color 0.2s}
.site-nav-toggle:hover{border-color:var(--color-accent)}
.site-nav-toggle__line{width:18px;height:2px;background:var(--color-text-light);transition:background 0.2s}
.site-nav-toggle:hover .site-nav-toggle__line{background:var(--color-accent)}
.site-nav-toggle__text{font-size:0.6rem;letter-spacing:0.12em;color:var(--color-text-light)}
.site-footer{background:radial-gradient(ellipse at 80% -20%,rgba(13,43,69,0.7) 0%,transparent 60%),radial-gradient(1px 1px at 15% 40%,rgba(245,247,250,0.2) 0 1px,transparent 2px),radial-gradient(1px 1px at 70% 70%,rgba(212,175,55,0.2) 0 1px,transparent 2px),radial-gradient(1px 1px at 90% 20%,rgba(245,247,250,0.15) 0 1px,transparent 2px),linear-gradient(180deg,var(--color-primary) 0%,var(--color-bg-dark) 100%);border-top:3px solid var(--color-accent);color:rgba(245,247,250,0.72)}
.site-footer__inner{max-width:var(--container-width);margin:0 auto;padding:72px 24px 40px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px}
.site-footer__brand .site-footer__logo{display:inline-flex;align-items:center;gap:12px;text-decoration:none;margin-bottom:16px}
.site-footer__logo-mark{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;background:linear-gradient(135deg,var(--color-accent) 0%,#b8952e 100%);clip-path:polygon(50% 0%,100% 25%,100% 75%,50% 100%,0% 75%,0% 25%);color:var(--color-bg-dark);font-family:var(--font-heading);font-weight:700;font-size:1rem}
.site-footer__logo-name{font-family:var(--font-heading);font-weight:700;font-size:1.2rem;letter-spacing:0.05em;color:var(--color-text-light)}
.site-footer__about{font-size:0.85rem;line-height:1.8;margin-bottom:10px;max-width:30em}
.site-footer__trust{font-size:0.75rem;color:var(--color-accent);border-left:2px solid rgba(212,175,55,0.4);padding-left:12px}
.site-footer__heading{font-family:var(--font-heading);font-weight:700;font-size:0.85rem;letter-spacing:0.2em;text-transform:uppercase;color:var(--color-accent);margin-bottom:16px}
.site-footer__list{display:flex;flex-direction:column;gap:8px}
.site-footer__link{font-size:0.85rem;color:rgba(245,247,250,0.7);text-decoration:none;transition:color 0.2s ease,padding-left 0.2s ease}
.site-footer__link:hover,.site-footer__link:focus-visible{color:var(--color-accent);padding-left:4px}
.site-footer__contact-list{display:flex;flex-direction:column;gap:12px}
.site-footer__contact-item{display:flex;flex-direction:column;gap:2px}
.site-footer__contact-label{font-family:var(--font-mono);font-size:0.65rem;letter-spacing:0.14em;color:var(--color-mineral-gray);text-transform:uppercase}
.site-footer__contact-text{font-size:0.85rem;color:rgba(245,247,250,0.85)}
.site-footer__legalbar{border-top:1px solid rgba(245,247,250,0.08);background:rgba(0,0,0,0.25)}
.site-footer__legalbar-inner{max-width:var(--container-width);margin:0 auto;padding:20px 24px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;font-size:0.75rem;color:var(--color-mineral-gray)}
.site-footer__copyright{font-family:var(--font-mono)}
.site-footer__icp{font-family:var(--font-mono)}
.site-footer__service{font-size:0.75rem;color:rgba(122,138,143,0.8)}
@media (max-width:1024px){
  .site-footer__inner{grid-template-columns:1fr 1fr;gap:40px;padding:56px 24px 32px}
  .site-nav-toggle{display:flex}
  .site-nav{position:absolute;top:100%;left:0;right:0;flex:unset;background:linear-gradient(180deg,rgba(5,14,26,0.98),rgba(10,26,47,0.98));border-bottom:2px solid rgba(212,175,55,0.4);box-shadow:0 12px 24px rgba(0,0,0,0.5);max-height:0;overflow:hidden;transition:max-height 0.4s ease;display:block}
  .site-nav[data-open]{max-height:80vh;overflow-y:auto}
  .site-nav__list{flex-direction:column;align-items:stretch;padding:8px 16px 16px}
  .site-nav__link{justify-content:flex-start;padding:14px 12px;border-bottom:1px solid rgba(245,247,250,0.07);border-radius:0;font-size:0.95rem;border-left:2px solid transparent}
  .site-nav__link:hover,.site-nav__link:focus-visible{border-left-color:var(--color-accent);border-bottom-color:rgba(245,247,250,0.12)}
  .site-nav__link[aria-current="page"]{border-left-color:var(--color-accent);border-bottom-color:rgba(212,175,55,0.2)}
  .site-header__meta .site-quick-link{display:none}
}
@media (max-width:640px){
  .site-header__inner{padding:0 16px}
  .site-brand__name{font-size:1rem}
  .site-nav-toggle__text{display:none}
  .site-nav-toggle{gap:5px;padding:10px}
  .site-footer__inner{grid-template-columns:1fr;padding:48px 16px 24px;gap:32px}
  .site-footer__legalbar-inner{flex-direction:column;align-items:flex-start;gap:8px;padding:16px}
  .section{padding:56px 16px}
  .section-header{flex-direction:column;align-items:flex-start;gap:8px}
  .card{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  .site-nav{transition:none}
  .site-brand__mark{transition:none}
  .site-footer__link{transition:none}
}