:root{
  --ink:#061322;
  --ink-2:#0B1F38;
  --ink-3:#123253;
  --gold:#D6A84F;
  --gold-hi:#F0C978;
  --coral:#F26B4F;
  --jade:#6FBF9F;
  --paper:#F2F6FA;
  --mist:#A8B8CA;
  --line:#274666;
  --glass:rgba(18,50,83,.58);
  --glass-line:rgba(214,168,79,.22);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --wrap:1240px;
  --pad:clamp(16px,4vw,40px);
  --r-s:6px;
  --r-m:14px;
  --r-l:26px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:66px;
}

*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  min-height:100%;
  background:
    radial-gradient(120% 90% at 88% -12%,rgba(18,50,83,.78),transparent 62%),
    radial-gradient(90% 70% at -12% 6%,rgba(214,168,79,.10),transparent 58%),
    var(--ink);
  color:var(--paper);
  font-family:var(--sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,p,figure,blockquote,dl,dd,pre{margin:0}
h1,h2,h3,h4{font-weight:900;line-height:1.14;letter-spacing:-.02em}
h1{font-size:clamp(34px,5.6vw,72px)}
h2{font-size:clamp(26px,3.6vw,42px)}
h3{font-size:clamp(20px,2.2vw,26px)}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
img{height:auto}
a{color:var(--gold-hi);text-underline-offset:3px}
a:hover{color:var(--gold)}
button{font-family:inherit;font-size:inherit;color:inherit}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--gold-hi);outline-offset:3px;border-radius:4px}
::selection{background:var(--gold);color:#08182B}
section[id],[id]{scroll-margin-top:calc(var(--header-h) + 28px)}

/* ---------- 通用工具 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}
.section{padding-block:clamp(40px,7vw,88px)}
.section--tight{padding-block:clamp(24px,4vw,48px)}
.section-title{font-size:clamp(26px,3.6vw,42px);font-weight:900;line-height:1.12;letter-spacing:-.02em}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:11px;font-weight:600;
  letter-spacing:.26em;text-transform:uppercase;color:var(--gold);
}
.eyebrow::after{
  content:"";width:clamp(24px,6vw,72px);height:1px;
  background:linear-gradient(90deg,var(--gold),transparent);
}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}
.prose{max-width:62ch;color:#DCE6F0;font-size:16px;line-height:1.8}
.prose p+p{margin-top:1em}
.prose h3{margin-top:1.5em}
.prose ul{margin-top:.8em;display:grid;gap:.4em}
.prose li{padding-left:1.1em;position:relative}
.prose li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:1px;background:var(--gold)}
.divider{height:1px;border:0;margin-block:clamp(20px,3vw,40px);background:linear-gradient(90deg,var(--line),rgba(39,70,102,0))}
.status-dot{
  display:inline-block;width:8px;height:8px;flex:none;border-radius:50%;
  background:var(--jade);box-shadow:0 0 0 4px rgba(111,191,159,.16);
}
.status-dot--coral{background:var(--coral);box-shadow:0 0 0 4px rgba(242,107,79,.16)}
.status-dot--gold{background:var(--gold);box-shadow:0 0 0 4px rgba(214,168,79,.16)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 20px;border-radius:999px;
  border:1px solid transparent;background:transparent;color:var(--paper);
  font-size:14px;font-weight:700;line-height:1;text-decoration:none;
  cursor:pointer;white-space:nowrap;
  transition:transform .16s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn--gold{background:var(--gold);color:#0A1726;border-color:var(--gold-hi)}
.btn--gold:hover{background:var(--gold-hi);color:#0A1726;transform:translateY(-1px)}
.btn--ghost{background:rgba(18,50,83,.46);color:var(--paper);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-hi)}
.btn--outline{background:transparent;color:var(--gold-hi);border-color:rgba(214,168,79,.5)}
.btn--outline:hover{background:rgba(214,168,79,.14);color:var(--gold-hi)}
.btn--sm{min-height:36px;padding:8px 14px;font-size:13px}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;left:12px;top:-72px;z-index:200;
  padding:12px 20px;border-radius:0 0 10px 10px;
  background:var(--gold);color:#08182B;font-weight:800;font-size:14px;
  text-decoration:none;transition:top .2s var(--ease);
}
.skip-link:focus{top:0;color:#08182B}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  color:var(--paper);
  background:linear-gradient(180deg,rgba(6,19,34,.97),rgba(6,19,34,.88));
  border-bottom:1px solid var(--line);
  box-shadow:0 18px 42px -34px rgba(0,0,0,.95);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}

.site-header__rail{
  display:flex;align-items:center;gap:clamp(12px,2.6vw,30px);
  max-height:64px;overflow:hidden;
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:8px var(--pad);
  border-bottom:1px dashed rgba(39,70,102,.9);
  font-size:12px;letter-spacing:.06em;color:var(--mist);
  transition:max-height .28s var(--ease),opacity .2s var(--ease),padding .28s var(--ease),border-color .2s;
}
.site-header[data-scrolled="true"] .site-header__rail{
  max-height:0;opacity:0;padding-block:0;border-bottom-color:transparent;pointer-events:none;
}
.rail-brand{
  display:inline-flex;align-items:baseline;gap:2px;margin:0;
  font-size:12px;letter-spacing:.1em;color:var(--paper);white-space:nowrap;
}
.rail-brand__cn{font-weight:800}
.rail-brand__sep{color:var(--line)}
.rail-brand__tag{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--gold)}
.rail-meta{display:flex;align-items:center;gap:clamp(10px,2vw,22px)}
.rail-meta__item{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.rail-meta__label{color:#7E93AA;font-size:11px;letter-spacing:.14em}
.rail-meta__value{color:var(--paper);font-size:11px}
.rail-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.rail-nav__link{
  padding:4px 10px;border-radius:999px;border:1px solid transparent;
  font-size:11px;letter-spacing:.1em;color:var(--mist);text-decoration:none;
  transition:color .18s,border-color .18s,background .18s;
}
.rail-nav__link:hover{color:var(--gold-hi);border-color:rgba(214,168,79,.4);background:rgba(214,168,79,.08)}

.site-header__frame{
  position:relative;
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;gap:clamp(10px,2.2vw,28px);
  min-height:var(--header-h);
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:10px var(--pad);
}
.site-header__frame::before{
  content:"";position:absolute;left:var(--pad);bottom:0;
  width:clamp(28px,7vw,86px);height:2px;
  background:linear-gradient(90deg,var(--gold),transparent);
}

.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--paper)}
.brand:hover{color:var(--paper)}
.brand__mark{
  display:grid;place-items:center;width:44px;height:44px;flex:none;
  border:1px solid var(--gold);border-radius:4px 4px 14px 4px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--gold-hi);
  background:radial-gradient(120% 120% at 30% 10%,rgba(214,168,79,.24),transparent 70%);
}
.brand__text{display:grid;gap:1px}
.brand__name{font-size:20px;font-weight:900;line-height:1.1;letter-spacing:-.02em}
.brand__desc{font-size:10px;letter-spacing:.2em;color:var(--mist)}

.primary-nav{display:flex;justify-content:center}
.primary-nav__list{display:flex;align-items:center;gap:2px}
.primary-nav__item{display:flex}
.primary-nav__link{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:10px 11px;border-radius:8px;border:1px solid transparent;
  font-size:15px;font-weight:500;color:var(--mist);text-decoration:none;white-space:nowrap;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease);
}
.primary-nav__link:hover{
  color:var(--gold-hi);border-color:rgba(214,168,79,.35);
  background:rgba(214,168,79,.07);
}
.primary-nav__num{font-size:10px;letter-spacing:.08em;color:rgba(168,184,202,.62)}
.primary-nav__label{display:block}
.primary-nav__dot{
  width:6px;height:6px;border-radius:50%;background:var(--jade);
  opacity:0;transition:opacity .18s var(--ease);
}
.primary-nav__link[aria-current="page"]{
  color:var(--paper);border-color:var(--gold);
  background:linear-gradient(180deg,rgba(214,168,79,.16),rgba(214,168,79,.03));
  box-shadow:inset 0 -2px 0 var(--gold);
}
.primary-nav__link[aria-current="page"] .primary-nav__num{color:var(--gold)}
.primary-nav__link[aria-current="page"] .primary-nav__dot{opacity:1}

.header-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;justify-self:end}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  min-height:40px;padding:9px 13px;border-radius:10px;
  border:1px solid var(--line);background:var(--ink-3);color:var(--paper);
  font-size:13px;font-weight:700;letter-spacing:.06em;cursor:pointer;
  transition:border-color .18s,color .18s,background .18s;
}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold-hi)}
.nav-toggle[aria-expanded="true"]{border-color:var(--gold);color:var(--gold-hi);background:rgba(214,168,79,.16)}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:currentColor}
.nav-toggle__bars span:nth-child(2){width:13px}

.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none}
.scroll-progress__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--gold),var(--coral));
  transition:width .12s linear;
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(48px,8vw,104px);
  color:var(--paper);
  background:linear-gradient(180deg,#091B31 0%,#050F1B 72%);
  border-top:1px solid var(--line);
}
.footer-band{
  border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(214,168,79,.13),rgba(242,107,79,.07) 52%,rgba(6,19,34,0) 88%);
}
.footer-band__inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px 24px;
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:20px var(--pad);
}
.footer-band__text{
  display:flex;align-items:center;gap:10px;
  max-width:56ch;font-size:14px;line-height:1.65;color:#D5E1EC;
}
.footer-band__actions{display:flex;flex-wrap:wrap;gap:10px}

.footer-main{
  display:grid;grid-template-columns:1.5fr 1fr 1.25fr 1fr;
  gap:clamp(22px,3vw,44px);
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:clamp(32px,5vw,60px) var(--pad);
}
.footer-brand{display:grid;gap:10px;align-content:start}
.footer-brand__name{font-size:24px;font-weight:900;letter-spacing:-.02em;line-height:1.15}
.footer-brand__tagline{font-size:14px;color:var(--mist);max-width:26ch;line-height:1.7}
.footer-brand__meta{
  display:inline-block;margin-top:2px;padding:5px 10px;
  border:1px solid rgba(214,168,79,.35);border-radius:var(--r-s);
  font-size:10px;letter-spacing:.16em;color:var(--gold);
  justify-self:start;
}
.footer-col{display:grid;gap:12px;align-content:start}
.footer-col__title{
  font-family:var(--mono);font-size:11px;font-weight:600;
  letter-spacing:.24em;text-transform:uppercase;color:var(--gold);
}
.footer-col__note{
  margin-top:2px;font-size:11px;letter-spacing:.1em;color:#7E93AA;
}
.footer-links{display:grid;gap:9px;font-size:15px}
.footer-links a{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--mist);text-decoration:none;
  transition:color .18s var(--ease);
}
.footer-links a::before{
  content:"";width:10px;height:1px;background:var(--line);
  transition:width .18s var(--ease),background .18s var(--ease);
}
.footer-links a:hover{color:var(--gold-hi)}
.footer-links a:hover::before{width:18px;background:var(--gold)}

.footer-contact{display:grid;gap:10px;font-size:14px}
.footer-contact__row{display:grid;grid-template-columns:44px minmax(0,1fr);gap:10px;align-items:baseline}
.footer-contact dt{font-size:11px;letter-spacing:.14em;color:#7E93AA}
.footer-contact dd{color:#D5E1EC;line-height:1.6;word-break:break-word}

.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:8px 24px;
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:16px var(--pad) 22px;
  border-top:1px solid rgba(39,70,102,.65);
  font-size:12px;letter-spacing:.04em;color:#7E93AA;
}
.footer-base__copy{color:var(--mist)}
.footer-base__icp{letter-spacing:.08em}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--mist)}
.breadcrumb__list{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item+.breadcrumb__item::before{content:"/";color:var(--line)}
.breadcrumb a{color:var(--mist);text-decoration:none;border-bottom:1px solid transparent}
.breadcrumb a:hover{color:var(--gold-hi);border-bottom-color:var(--gold)}
.breadcrumb [aria-current="page"]{color:var(--paper)}

/* ---------- 面板与卡片 ---------- */
.panel{
  background:var(--ink-2);border:1px solid var(--line);
  border-radius:var(--r-m);padding:clamp(18px,2.4vw,28px);
}
.panel--glass{
  background:var(--glass);border-color:var(--glass-line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.card{
  position:relative;display:flex;flex-direction:column;gap:10px;
  padding:clamp(16px,2vw,24px);
  background:var(--ink-3);border:1px solid var(--line);border-radius:var(--r-m);
  color:var(--paper);text-decoration:none;
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{
  transform:translateY(-2px);border-color:var(--gold);
  background:#153A5F;color:var(--paper);
  box-shadow:0 22px 40px -34px rgba(0,0,0,.95);
}
.card__num{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--gold)}
.card__title{font-size:18px;font-weight:800;line-height:1.3;letter-spacing:-.01em}
.card__meta{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--mist)}

/* ---------- 标签 ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:999px;
  border:1px solid var(--line);background:rgba(18,50,83,.6);
  font-family:var(--mono);font-size:11px;letter-spacing:.06em;
  color:var(--mist);text-decoration:none;
  transition:border-color .18s,color .18s,background .18s;
}
a.tag:hover{color:var(--paper);border-color:var(--gold);background:rgba(214,168,79,.12)}
.tag--gold{color:var(--gold-hi);border-color:rgba(214,168,79,.5)}
.tag--coral{color:#FFB4A3;border-color:rgba(242,107,79,.5)}
.tag--jade{color:#9ADCC0;border-color:rgba(111,191,159,.5)}

/* ---------- 网格基座 ---------- */
.grid{display:grid;gap:clamp(14px,2vw,24px)}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-auto{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}

/* ---------- 统计锚点 ---------- */
.stat{display:grid;gap:4px}
.stat__value{
  font-family:var(--mono);font-weight:700;
  font-size:clamp(24px,3vw,34px);line-height:1.1;letter-spacing:-.02em;
  color:var(--gold-hi);
}
.stat__label{
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--mist);
}

/* ---------- 可复用图片容器 ---------- */
.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--line);border-radius:var(--r-m);
  background:
    radial-gradient(120% 100% at 18% 0%,rgba(18,50,83,.95),rgba(6,19,34,.98)),
    var(--ink-2);
  isolation:isolate;
}
.media-frame::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:
    linear-gradient(rgba(39,70,102,.35) 1px,transparent 1px),
    linear-gradient(90deg,rgba(39,70,102,.35) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.55;
}
.media-frame>img,
.media-frame>picture>img{
  position:absolute;inset:0;z-index:1;
  width:100%;height:100%;object-fit:cover;
}
.media-frame::after{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(115deg,transparent 38%,rgba(214,168,79,.2) 50%,transparent 62%);
  opacity:0;transition:opacity .3s var(--ease);
}
.media-frame:hover::after{opacity:1}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:3;
  padding:10px 14px;
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--paper);
  background:linear-gradient(0deg,rgba(6,19,34,.94),rgba(6,19,34,0));
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}

/* ---------- 显现 ---------- */
[data-reveal]{transition:opacity .5s var(--ease),transform .5s var(--ease)}
html.js [data-reveal]:not(.is-visible){opacity:0;transform:translateY(14px)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .header-actions__search{display:none}
  .primary-nav__link{padding:9px;font-size:14px}
  .primary-nav__num{display:none}
}

@media (max-width:1024px){
  .site-header__frame{grid-template-columns:1fr auto;gap:12px}
  .brand__desc{display:none}
  .nav-toggle{display:inline-flex}
  .primary-nav{
    position:absolute;left:0;right:0;top:100%;z-index:90;
    display:none;
    max-height:calc(100vh - 130px);overflow-y:auto;
    padding:12px var(--pad) 24px;
    background:linear-gradient(180deg,#091B31,#061322);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    box-shadow:0 32px 60px -36px rgba(0,0,0,.95);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
  }
  .primary-nav[data-open]{
    display:block;
    animation:nav-in .22s var(--ease);
  }
  .primary-nav__list{flex-direction:column;align-items:stretch;gap:8px}
  .primary-nav__link{
    justify-content:flex-start;gap:12px;
    padding:14px 16px;font-size:17px;
    border:1px solid var(--line);border-radius:10px;
    background:rgba(11,31,56,.72);
  }
  .primary-nav__num{display:inline-block;font-size:11px;width:24px;color:rgba(168,184,202,.7)}
  .primary-nav__dot{display:block;margin-left:auto;opacity:.45}
  .primary-nav__link[aria-current="page"] .primary-nav__dot{opacity:1}
  .primary-nav__link[aria-current="page"]{box-shadow:inset 3px 0 0 var(--gold)}
  @keyframes nav-in{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
}

@media (max-width:900px){
  .rail-nav{display:none}
  .footer-main{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1/-1}
}

@media (max-width:760px){
  .grid-2,.grid-3{grid-template-columns:minmax(0,1fr)}
  .footer-band__inner{flex-direction:column;align-items:flex-start}
  .footer-band__actions{width:100%}
  .footer-band__actions .btn{flex:1 1 auto}
}

@media (max-width:640px){
  :root{--header-h:60px}
  .site-header__rail{padding-block:6px}
  .rail-meta__item:last-child{display:none}
  .brand__mark{width:38px;height:38px;font-size:12px}
  .brand__name{font-size:17px}
  .header-actions .btn--gold{padding:8px 12px;font-size:12px}
  .nav-toggle__label{display:none}
  .nav-toggle{padding:9px 11px;min-height:38px}
  .footer-main{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-base{flex-direction:column;align-items:flex-start;gap:6px}
  .footer-contact__row{grid-template-columns:52px minmax(0,1fr)}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    scroll-behavior:auto!important;
  }
  html.js [data-reveal]:not(.is-visible){opacity:1;transform:none}
  .media-frame:hover::after{opacity:0}
}