*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:104px}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,canvas{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit}
[hidden]{display:none!important}

:root{
  --night-900:#050F1F;
  --night-800:#0A1B33;
  --night-700:#12294A;
  --line-blue:#23406B;
  --snow:#F4F7FC;
  --mist:#A9BCD6;
  --fog:#7A90AE;
  --ink:#C8D7EA;
  --gold:#E9B44C;
  --gold-soft:#F6D28A;
  --gold-ink:#06152B;
  --flag-blue:#4C8FD4;
  --flag-red:#D0554A;
  --flag-green:#3FA37F;
  --flag-yellow:#E8C24A;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular","DejaVu Sans Mono",Consolas,"Liberation Mono",monospace;
  --radius-lg:28px;
  --radius-md:20px;
  --radius-sm:14px;
  --radius-pill:999px;
  --shell:1240px;
  --gutter:clamp(18px,4vw,44px);
  --ease:cubic-bezier(0.22,0.61,0.36,1);
  --dur:220ms;
  --dur-fast:160ms;
}

body{
  background:var(--night-900);
  color:var(--snow);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(1100px 620px at 80% -12%,rgba(76,143,212,.14),transparent 68%),
    radial-gradient(860px 520px at 6% 2%,rgba(233,180,76,.075),transparent 70%);
}
html.nav-open{overflow:hidden}

h1,h2,h3,h4{font-weight:900;line-height:1.14;letter-spacing:-.02em;color:var(--snow)}
h1{font-size:clamp(32px,5vw,64px)}
h2{font-size:clamp(26px,3.2vw,40px)}
h3{font-size:clamp(21px,2.2vw,28px)}
p{line-height:1.75}
strong{font-weight:700;color:var(--snow)}

:focus-visible{outline:2px solid var(--gold-soft);outline-offset:3px;border-radius:8px}

.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:200;
  display:inline-block;
  padding:10px 20px;
  border-radius:var(--radius-pill);
  background:var(--gold);
  color:var(--gold-ink);
  font-size:15px;
  font-weight:700;
  text-decoration:none;
  transform:translateY(-180%);
  transition:transform var(--dur) var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(5,15,31,.82);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  backdrop-filter:blur(14px) saturate(130%);
  border-bottom:1px solid rgba(35,64,107,.6);
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header__inner{
  display:flex;
  align-items:center;
  gap:16px;
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:16px var(--gutter);
  min-height:76px;
  transition:padding var(--dur) var(--ease),min-height var(--dur) var(--ease);
}
.site-header.is-condensed{background:rgba(5,15,31,.96);border-bottom-color:rgba(35,64,107,1)}
.site-header.is-condensed .site-header__inner{min-height:60px;padding-block:8px}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:inherit;
  flex:none;
}
.brand__mark{
  display:grid;
  place-items:center;
  width:38px;
  height:38px;
  flex:none;
  border-radius:12px;
  background:linear-gradient(150deg,var(--gold-soft),var(--gold));
  color:var(--gold-ink);
  font-size:19px;
  font-weight:900;
  letter-spacing:-.02em;
  box-shadow:0 6px 18px rgba(233,180,76,.22);
}
.brand__text{display:flex;flex-direction:column;gap:1px}
.brand__name{display:block;font-size:17px;font-weight:900;letter-spacing:.01em;line-height:1.25;color:var(--snow)}
.brand__tag{display:block;font-size:12px;font-weight:500;letter-spacing:.12em;line-height:1.4;color:var(--mist)}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  margin-left:auto;
  padding:9px 16px;
  border-radius:var(--radius-pill);
  background:rgba(18,41,74,.8);
  border:1px solid rgba(35,64,107,1);
  color:var(--snow);
  font-size:13px;
  font-weight:500;
  letter-spacing:.08em;
  cursor:pointer;
  transition:border-color var(--dur-fast) var(--ease),background-color var(--dur-fast) var(--ease);
}
.nav-toggle:hover{border-color:rgba(233,180,76,.6)}
.nav-toggle__icon{position:relative;display:block;width:16px;height:10px;flex:none}
.nav-toggle__icon::before,
.nav-toggle__icon::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--gold);
  transition:transform var(--dur) var(--ease),top var(--dur) var(--ease);
}
.nav-toggle__icon::before{top:0}
.nav-toggle__icon::after{top:8px}
[data-site-header][data-open="true"] .nav-toggle__icon::before{top:4px;transform:rotate(45deg)}
[data-site-header][data-open="true"] .nav-toggle__icon::after{top:4px;transform:rotate(-45deg)}
.nav-toggle__label{line-height:1}

.site-nav{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,22px);
  margin-left:auto;
}
.site-nav__list{display:flex;align-items:center;gap:2px}
.site-nav__item{display:block}
.site-nav__link{
  position:relative;
  display:inline-block;
  padding:9px 13px;
  border-radius:var(--radius-pill);
  color:var(--mist);
  font-size:15px;
  font-weight:500;
  text-decoration:none;
  white-space:nowrap;
  transition:color var(--dur-fast) var(--ease),background-color var(--dur-fast) var(--ease);
}
.site-nav__link:hover{color:var(--snow);background:rgba(35,64,107,.45)}
.site-nav__link[aria-current="page"]{color:var(--snow);font-weight:700}
.site-nav__link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:13px;
  right:13px;
  bottom:3px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--gold),var(--gold-soft));
}
.site-nav__cta{margin-left:6px;flex:none}

.site-header__meter{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  overflow:hidden;
  background:rgba(35,64,107,.4);
  pointer-events:none;
}
.site-header__meter-fill{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--gold),var(--gold-soft));
  transition:width 100ms linear;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(56px,7vw,110px);
  padding:0 var(--gutter) clamp(24px,3vw,40px);
}
.site-footer__panel{
  position:relative;
  max-width:var(--shell);
  margin-inline:auto;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid rgba(35,64,107,.75);
  background:linear-gradient(180deg,var(--night-800),#071528);
}
.footer-flags{display:flex;height:4px}
.footer-flags span{display:block;height:100%}
.footer-flags span:nth-child(1){flex:1.4 1 0;background:var(--flag-blue)}
.footer-flags span:nth-child(2){flex:1 1 0;background:var(--snow);opacity:.86}
.footer-flags span:nth-child(3){flex:1.1 1 0;background:var(--flag-red)}
.footer-flags span:nth-child(4){flex:1 1 0;background:var(--flag-green)}
.footer-flags span:nth-child(5){flex:1.6 1 0;background:var(--flag-yellow)}

.footer-main{
  display:grid;
  grid-template-columns:minmax(240px,1fr) minmax(0,1.25fr);
  gap:clamp(24px,4vw,56px);
  padding:clamp(26px,3.6vw,48px) clamp(22px,3vw,44px) clamp(20px,2.6vw,34px);
}
.footer-brand__name{
  margin:0;
  font-size:clamp(24px,3vw,32px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.16;
}
.footer-brand__line{margin:10px 0 0;font-size:15px;line-height:1.7;color:var(--mist);max-width:24em}
.footer-brand__domain{
  margin:16px 0 0;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.02em;
  color:var(--fog);
}
.footer-status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:16px 0 0;
  padding:6px 13px;
  border-radius:var(--radius-pill);
  background:rgba(63,163,127,.12);
  border:1px solid rgba(63,163,127,.38);
  color:#8FD9BD;
  font-size:12px;
  letter-spacing:.06em;
  line-height:1.5;
}
.footer-status::before{
  content:"";
  width:6px;
  height:6px;
  flex:none;
  border-radius:50%;
  background:var(--flag-green);
  box-shadow:0 0 0 3px rgba(63,163,127,.18);
}

.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,2.4vw,32px);
}
.footer-col__title{
  margin:0 0 12px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--fog);
  line-height:1.6;
}
.footer-col ul{display:grid;gap:9px}
.footer-col a{
  display:inline-block;
  color:var(--ink);
  font-size:15px;
  text-decoration:none;
  transition:color var(--dur-fast) var(--ease);
}
.footer-col a:hover{color:var(--gold-soft)}

.footer-contact{
  display:flex;
  flex-wrap:wrap;
  gap:12px clamp(20px,3vw,44px);
  padding:clamp(16px,2.2vw,24px) clamp(22px,3vw,44px);
  border-top:1px solid rgba(35,64,107,.7);
  border-bottom:1px solid rgba(35,64,107,.7);
  background:rgba(18,41,74,.35);
  font-size:14px;
}
.footer-contact__item{display:inline-flex;align-items:baseline;gap:10px;margin:0;line-height:1.7}
.footer-contact__key{font-size:12px;letter-spacing:.14em;color:var(--fog);white-space:nowrap}
.footer-contact__val{color:var(--snow);word-break:break-word}
.footer-contact__val--mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.03em}

.footer-base{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px 24px;
  padding:clamp(16px,2.2vw,22px) clamp(22px,3vw,44px) clamp(20px,2.6vw,28px);
  font-size:13px;
  color:var(--fog);
  line-height:1.7;
}
.footer-base__copy{margin:0}
.footer-base__meta{margin:0}

/* ---------- 通用布局 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(44px,6vw,92px)}
.bento{display:grid;gap:clamp(16px,2.2vw,30px)}
.bento--split{grid-template-columns:minmax(0,1.55fr) minmax(0,.85fr)}
.bento--trio{grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,.9fr)}
.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(min(280px,100%),1fr))}

/* ---------- 文本组件 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin:0;
  font-size:12px;
  font-weight:500;
  letter-spacing:.18em;
  color:var(--gold);
  line-height:1.6;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:currentColor}
.lede{margin:0;max-width:34em;font-size:clamp(17px,1.5vw,21px);line-height:1.7;color:var(--ink)}
.prose{max-width:36em;font-size:17px;line-height:1.75;color:#D5E1F0}
.prose > * + *{margin-top:1.05em}
.prose h2{font-size:clamp(21px,2.2vw,28px);margin-top:1.9em}
.prose h3{font-size:21px;margin-top:1.6em}
.prose ul{list-style:disc;padding-left:1.25em}
.prose ol{list-style:decimal;padding-left:1.25em}
.prose li + li{margin-top:.4em}
.prose a{color:var(--gold-soft);text-decoration:underline;text-underline-offset:3px}
.num,.score{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.score{display:inline-block;font-size:1.6em;font-weight:700;line-height:1;color:var(--snow)}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ---------- 按钮 / 标签 / 面板 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  line-height:1.4;
  text-decoration:none;
  cursor:pointer;
  transition:background-color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease);
}
.btn--gold{background:var(--gold);color:var(--gold-ink)}
.btn--gold:hover{background:var(--gold-soft)}
.btn--ghost{background:transparent;color:var(--snow);border-color:rgba(35,64,107,1)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-soft)}
.btn--small{padding:8px 16px;font-size:13px}
.btn:active{transform:translateY(1px)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:12px;
  font-weight:500;
  letter-spacing:.08em;
  line-height:1.7;
  white-space:nowrap;
}
.tag::before{content:"";width:6px;height:6px;flex:none;border-radius:50%;background:currentColor}
.tag--blue{color:#8FBDEF;background:rgba(76,143,212,.16);border-color:rgba(76,143,212,.42)}
.tag--red{color:#EE9C93;background:rgba(208,85,74,.16);border-color:rgba(208,85,74,.42)}
.tag--green{color:#8FD9BD;background:rgba(63,163,127,.16);border-color:rgba(63,163,127,.42)}
.tag--yellow{color:#F0D684;background:rgba(232,194,74,.15);border-color:rgba(232,194,74,.4)}
.tag--gold{color:var(--gold-soft);background:rgba(233,180,76,.14);border-color:rgba(233,180,76,.44)}

.panel{
  position:relative;
  padding:clamp(18px,2.4vw,30px);
  border-radius:var(--radius-lg);
  border:1px solid rgba(35,64,107,.85);
  background:linear-gradient(168deg,rgba(18,41,74,.94),rgba(10,27,51,.97));
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.panel:hover{transform:translateY(-2px);border-color:#33578F}
.panel--flat{background:rgba(10,27,51,.72);border-color:rgba(35,64,107,.6)}
.panel--gold{border-color:rgba(233,180,76,.5);background:linear-gradient(168deg,rgba(233,180,76,.1),rgba(10,27,51,.96))}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--fog);
  line-height:1.7;
}
.crumbs li{display:inline-flex;align-items:center;gap:8px}
.crumbs li + li::before{content:"";display:block;width:14px;height:1px;background:#2E4C79}
.crumbs a{color:var(--mist);text-decoration:none}
.crumbs a:hover{color:var(--gold-soft)}
.crumbs [aria-current="page"]{color:var(--snow)}

/* ---------- 筛选 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.filter-chip{
  padding:8px 16px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(35,64,107,.9);
  background:rgba(10,27,51,.6);
  color:var(--mist);
  font-size:13px;
  font-weight:500;
  letter-spacing:.05em;
  line-height:1.6;
  cursor:pointer;
  transition:background-color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease);
}
.filter-chip:hover{border-color:rgba(233,180,76,.6);color:var(--snow)}
.filter-chip[aria-pressed="true"]{background:var(--gold);border-color:var(--gold);color:var(--gold-ink);font-weight:700}
.filter-status{margin-left:auto;font-size:12px;letter-spacing:.08em;color:var(--fog);line-height:1.6}

[data-filter-list].is-settling [data-filter-item]:not([hidden]){
  animation:filterIn var(--dur-fast) var(--ease) both;
}
@keyframes filterIn{
  from{opacity:0;transform:scale(.97)}
  to{opacity:1;transform:none}
}

/* ---------- 显现 ---------- */
html.reveal-ready [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
}
html.reveal-ready [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 媒体容器 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--radius-md);
  border:1px solid rgba(35,64,107,.85);
  aspect-ratio:16/9;
  background:
    repeating-linear-gradient(90deg,rgba(35,64,107,.42) 0 1px,transparent 1px 64px),
    repeating-linear-gradient(0deg,rgba(35,64,107,.26) 0 1px,transparent 1px 64px),
    linear-gradient(155deg,#0C2141,#061020 68%);
}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media--flat{background:var(--night-700)}
.media__img{width:100%;height:100%;object-fit:cover}
.media__caption{
  position:absolute;
  left:14px;
  right:14px;
  bottom:12px;
  font-size:12px;
  letter-spacing:.06em;
  line-height:1.6;
  color:var(--ink);
  text-shadow:0 1px 10px rgba(0,0,0,.7);
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .bento--trio{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .bento--trio > :first-child{grid-column:1 / -1}
}

@media (max-width:980px){
  .bento--split,.bento--trio{grid-template-columns:minmax(0,1fr)}
  .bento--trio > :first-child{grid-column:auto}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-main{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    margin:0;
    padding:10px var(--gutter) 22px;
    border-bottom:1px solid rgba(35,64,107,1);
    border-radius:0 0 var(--radius-lg) var(--radius-lg);
    background:linear-gradient(180deg,rgba(10,27,51,.99),rgba(5,15,31,.99));
    box-shadow:0 26px 52px rgba(0,0,0,.5);
    max-height:calc(100dvh - 88px);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    pointer-events:none;
    transition:opacity 180ms var(--ease),transform 180ms var(--ease),visibility 180ms var(--ease);
  }
  [data-site-header][data-open="true"] .site-nav{
    opacity:1;
    visibility:visible;
    transform:none;
    pointer-events:auto;
  }
  .site-nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .site-nav__link{
    display:block;
    padding:13px 16px;
    border-radius:var(--radius-sm);
    font-size:17px;
    font-weight:500;
    color:var(--ink);
  }
  .site-nav__link[aria-current="page"]{
    background:rgba(233,180,76,.14);
    color:var(--gold-soft);
    box-shadow:inset 3px 0 0 var(--gold);
  }
  .site-nav__link[aria-current="page"]::after{display:none}
  .site-nav__cta{margin-top:12px;width:100%;padding-block:14px}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:720px){
  body{font-size:15px}
  .site-header__inner{min-height:66px;padding-block:12px}
  .footer-contact{flex-direction:column;gap:8px}
  .filter-status{margin-left:0;width:100%}
}

@media (max-width:640px){
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .footer-nav{grid-template-columns:minmax(0,1fr)}
  .footer-base{flex-direction:column;align-items:flex-start}
}

@media (max-width:520px){
  .brand__tag{display:none}
  .brand__mark{width:34px;height:34px;border-radius:10px;font-size:17px}
  .brand__name{font-size:16px}
  .nav-toggle{padding:8px 13px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
  html.reveal-ready [data-reveal]{opacity:1!important;transform:none!important}
  .panel:hover{transform:none}
  [data-filter-list].is-settling [data-filter-item]:not([hidden]){animation:none}
}