:root{
  --ink:#0A0F26;
  --indigo:#12183A;
  --indigo-mid:#1E2A5A;
  --teal:#0E7C7B;
  --teal-bright:#2AD4B4;
  --gold:#E8B64C;
  --purple:#6B4DC4;
  --orange:#E4572E;
  --paper:#F4F1E8;
  --grey:#C9CEDA;
  --line:3px;
  --radius:14px;
  --radius-sm:9px;
  --dur:140ms;
  --wrap:1200px;
  --wrap-wide:1400px;
  --header-h:208px;
  --font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,picture,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid var(--teal-bright);outline-offset:3px;border-radius:4px}

body{
  font-family:var(--font-body);
  font-size:clamp(16px,0.35vw + 14.6px,17px);
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--paper);
  padding-top:var(--header-h);
  min-height:100vh;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.16;letter-spacing:-.01em}
h1{font-size:clamp(36px,6vw,72px)}
h2{font-size:clamp(24px,3.2vw,40px)}
h3{font-size:clamp(19px,2vw,24px)}
h4{font-size:17px;font-weight:800}
strong{font-weight:800}

.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}
.mono{font-family:var(--font-mono);letter-spacing:.14em;text-transform:uppercase}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:20px}
.wrap--narrow{max-width:820px}
.wrap--wide{max-width:var(--wrap-wide)}
.prose{max-width:38em}
.prose p + p{margin-top:1em}
.prose h2{margin-top:1.6em;margin-bottom:.5em}
.prose h3{margin-top:1.3em;margin-bottom:.4em}
.prose ul{margin:1em 0;padding-left:1.1em;list-style:disc}
.prose li + li{margin-top:.4em}

/* ---------- 刊头 ---------- */
.site-header{
  position:fixed;
  top:0;right:0;left:0;
  z-index:80;
  background:var(--indigo);
  color:var(--paper);
  border-bottom:4px solid var(--ink);
}
.site-header::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:4px;
  background:linear-gradient(90deg,var(--teal) 0 38%,var(--gold) 38% 56%,var(--purple) 56% 78%,var(--teal-bright) 78% 100%);
}
.scroll-progress{position:absolute;top:0;left:0;right:0;height:3px;pointer-events:none;background:rgba(244,241,232,.12)}
.scroll-progress__bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--teal-bright),var(--gold))}
.masthead{max-width:var(--wrap);margin:0 auto;padding:12px 20px 0;position:relative}
.masthead__ticker{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding-bottom:10px;border-bottom:1px dashed rgba(201,206,218,.35);
}
.masthead__stamp{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--grey);
}
.masthead__quick{display:flex;gap:8px;flex-wrap:wrap}
.quick-link{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  padding:5px 12px;border:2px solid rgba(244,241,232,.35);border-radius:999px;
  color:var(--paper);
  transition:border-color var(--dur) ease,background var(--dur) ease,color var(--dur) ease,transform var(--dur) ease;
}
.quick-link:hover{border-color:var(--teal-bright);background:rgba(42,212,180,.16);color:var(--teal-bright);transform:translate(-1px,-1px)}
.brandmark{display:flex;flex-direction:column;align-items:center;gap:6px;padding:16px 0 8px;text-align:center}
.brandmark__cn{
  font-family:var(--font-display);font-weight:900;line-height:1;
  font-size:clamp(34px,5.6vw,64px);letter-spacing:.04em;color:var(--paper);
  transition:color var(--dur) ease,font-size var(--dur) ease;
}
.brandmark:hover .brandmark__cn{color:var(--gold)}
.brandmark__en{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.42em;text-transform:uppercase;
  color:var(--teal-bright);
}
.masthead__sub{
  text-align:center;font-size:13px;letter-spacing:.3em;color:var(--grey);
  margin-top:2px;
}
.masthead__bar{
  display:flex;align-items:center;justify-content:center;gap:12px;
  margin-top:12px;padding:8px 0 12px;
  border-top:2px solid rgba(244,241,232,.16);
  transition:margin-top var(--dur) ease,padding var(--dur) ease;
}
.site-nav{display:block}
.site-nav__list{display:flex;flex-wrap:wrap;justify-content:center;gap:4px}
.site-nav__list a{
  display:inline-block;
  font-family:var(--font-mono);font-size:14px;letter-spacing:.16em;
  padding:8px 14px;border-radius:var(--radius-sm);
  color:var(--paper);
  transition:background var(--dur) ease,color var(--dur) ease;
}
.site-nav__list a:hover{background:rgba(42,212,180,.16);color:var(--teal-bright)}
.site-nav__list a[aria-current="page"]{background:var(--teal-bright);color:var(--ink);font-weight:600}
.nav-toggle{
  display:none;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  padding:8px 14px;border:2px solid rgba(244,241,232,.45);border-radius:999px;
  color:var(--paper);
  transition:border-color var(--dur) ease,background var(--dur) ease,color var(--dur) ease;
}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold)}
.nav-toggle[aria-expanded="true"]{background:var(--teal);border-color:var(--teal-bright);color:var(--paper)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:12px}
.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0;right:0;height:2px;background:currentColor}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle__label{line-height:1}

.site-header.is-condensed .masthead__stamp,
.site-header.is-condensed .masthead__sub{display:none}
.site-header.is-condensed .masthead__ticker{padding-bottom:4px;border-bottom:0}
.site-header.is-condensed .brandmark{padding:8px 0 4px}
.site-header.is-condensed .brandmark__cn{font-size:clamp(22px,2.6vw,32px)}
.site-header.is-condensed .masthead__bar{margin-top:4px;padding:6px 0 8px}

.skip-link{
  position:absolute;left:50%;top:-80px;transform:translateX(-50%);
  z-index:99;
  padding:10px 18px;border:3px solid var(--ink);border-radius:0 0 10px 10px;
  background:var(--gold);color:var(--ink);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.1em;
  transition:top var(--dur) ease;
}
.skip-link:focus{top:0}
#main-content{scroll-margin-top:calc(var(--header-h) + 12px)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:64px;
  background:var(--indigo);
  color:var(--paper);
  border-top:4px solid var(--ink);
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--purple) 0 32%,var(--teal-bright) 32% 62%,var(--gold) 62% 100%);
}
.footer__grid{
  max-width:var(--wrap);margin:0 auto;padding:44px 20px 32px;
  display:grid;gap:32px;
  grid-template-columns:1.5fr repeat(3,minmax(0,1fr));
}
.footer__brand{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.footer__logo{font-family:var(--font-display);font-weight:900;font-size:32px;line-height:1.1;color:var(--paper)}
.footer__tagline{font-family:var(--font-mono);font-size:12px;letter-spacing:.24em;color:var(--teal-bright)}
.footer__meta{font-size:13px;line-height:1.9;color:var(--grey)}
.footer__group-title{
  font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;
  color:var(--gold);
  padding-bottom:10px;margin-bottom:14px;
  border-bottom:2px solid rgba(244,241,232,.18);
}
.footer__links li + li{margin-top:9px}
.footer__links a{
  display:inline-block;font-size:15px;color:var(--paper);
  border-bottom:2px solid transparent;
  transition:color var(--dur) ease,border-color var(--dur) ease,transform var(--dur) ease;
}
.footer__links a:hover{color:var(--teal-bright);border-color:var(--teal-bright);transform:translateX(2px)}
.footer__bottom{
  max-width:var(--wrap);margin:0 auto;padding:20px 20px 38px;
  border-top:2px solid rgba(244,241,232,.16);
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.footer__bottom-text{display:flex;flex-direction:column;gap:10px;max-width:60ch}
.footer__support{
  font-size:13px;line-height:1.8;color:var(--grey);
  border-left:3px solid var(--teal);padding-left:12px;
}
.footer__copy{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--grey)}
.footer__seal{
  flex:0 0 auto;
  display:grid;place-items:center;
  width:64px;height:64px;
  background:var(--gold);color:var(--ink);
  border:3px solid var(--ink);border-radius:10px;
  font-family:var(--font-display);font-weight:900;font-size:24px;line-height:1;
  box-shadow:4px 4px 0 rgba(10,15,38,.85);
  transform:rotate(-4deg);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-mono);font-size:14px;letter-spacing:.1em;
  padding:12px 20px;
  border:3px solid var(--ink);border-radius:12px;
  background:var(--paper);color:var(--ink);
  box-shadow:4px 4px 0 var(--ink);
  transition:transform var(--dur) ease,box-shadow var(--dur) ease,background var(--dur) ease,color var(--dur) ease;
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--ink)}
.btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink)}
.btn--primary{background:var(--teal);color:var(--paper)}
.btn--gold{background:var(--gold);color:var(--ink)}
.btn--ghost{background:transparent;color:var(--paper);border-color:var(--paper);box-shadow:4px 4px 0 rgba(244,241,232,.35)}
.btn--sm{padding:9px 14px;font-size:12px;border-radius:999px;box-shadow:3px 3px 0 var(--ink)}

/* ---------- 面包屑 ---------- */
.breadcrumb{max-width:var(--wrap);margin:0 auto;padding:22px 20px 0}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em}
.breadcrumb__link{color:var(--indigo-mid);border-bottom:2px solid rgba(14,124,123,.35);transition:color var(--dur) ease,border-color var(--dur) ease}
.breadcrumb__link:hover{color:var(--teal);border-color:var(--teal)}
.breadcrumb__sep{color:var(--grey)}
.breadcrumb__current{color:var(--ink);font-weight:600}

/* ---------- 区块与网格 ---------- */
.section{padding:48px 0}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:22px}
.section__kicker{font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--teal)}
.section__title{margin-top:6px}
.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--cards{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.grid--asym{grid-template-columns:5fr 7fr}
.grid--asym-rev{grid-template-columns:7fr 5fr}
.band{width:100%;padding:36px 0;border-block:3px solid var(--ink)}
.band--indigo{background:var(--indigo);color:var(--paper)}
.band--teal{background:var(--teal);color:var(--paper)}
.band--gold{background:var(--gold);color:var(--ink)}
.band--purple{background:var(--purple);color:var(--paper)}
.band--paper{background:var(--paper);color:var(--ink)}

.index-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  color:var(--indigo-mid);
  padding-bottom:12px;margin-bottom:26px;
  border-bottom:2px dashed rgba(10,15,38,.28);
}
.index-bar__item{display:inline-flex;align-items:center;gap:8px}
.index-bar__link{color:var(--indigo-mid);border-bottom:2px solid transparent;transition:color var(--dur) ease,border-color var(--dur) ease}
.index-bar__link:hover{color:var(--teal);border-color:var(--teal)}
.index-bar__dot{color:var(--teal-bright)}

/* ---------- 卡片与标签 ---------- */
.card{
  position:relative;
  background:var(--paper);
  border:3px solid var(--ink);border-radius:var(--radius);
  padding:20px;
  box-shadow:6px 6px 0 rgba(10,15,38,.9);
  transition:transform var(--dur) ease,box-shadow var(--dur) ease;
}
.card:hover{transform:translate(-2px,-2px);box-shadow:8px 8px 0 rgba(10,15,38,.9)}
.card--dark{background:var(--indigo-mid);color:var(--paper)}
.card__tag{display:inline-flex;margin-bottom:12px}
.card__title{font-family:var(--font-display);font-weight:800;font-size:20px;line-height:1.35}
.card__meta{margin-top:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--indigo-mid)}
.card--dark .card__meta{color:var(--grey)}
.card__body{margin-top:10px;font-size:15px;line-height:1.75}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  padding:4px 11px;border:2px solid var(--ink);border-radius:999px;
  background:var(--paper);color:var(--ink);
}
.chip--teal{background:var(--teal);color:var(--paper)}
.chip--gold{background:var(--gold);color:var(--ink)}
.chip--purple{background:var(--purple);color:var(--paper)}
.chip--orange{background:var(--orange);color:var(--paper)}

/* ---------- 筛选 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:12px;
  border:3px solid var(--ink);border-radius:var(--radius);
  background:var(--paper);
  box-shadow:5px 5px 0 rgba(10,15,38,.85);
}
.filter-btn{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  padding:8px 15px;border:2px solid var(--ink);border-radius:999px;
  background:transparent;color:var(--ink);
  transition:background var(--dur) ease,color var(--dur) ease,transform var(--dur) ease;
}
.filter-btn:hover{background:rgba(14,124,123,.16);transform:translateY(-1px)}
.filter-btn[aria-pressed="true"]{background:var(--indigo);color:var(--paper);border-color:var(--indigo)}
.filter-count{margin-left:auto;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--indigo-mid)}
[data-filter-item][hidden]{display:none !important}

/* ---------- 横向卷轴 ---------- */
.scroll-track{
  display:flex;gap:16px;
  overflow-x:auto;overscroll-behavior-x:contain;
  scroll-snap-type:x mandatory;
  padding:6px 4px 18px;
  scrollbar-width:thin;
  scrollbar-color:var(--teal) rgba(10,15,38,.14);
}
.scroll-track::-webkit-scrollbar{height:10px}
.scroll-track::-webkit-scrollbar-track{background:rgba(10,15,38,.14);border-radius:999px}
.scroll-track::-webkit-scrollbar-thumb{background:var(--teal);border-radius:999px}
.scroll-track > *{scroll-snap-align:start;flex:0 0 min(78%,340px)}
.scroll-track:focus-visible{outline:3px solid var(--teal-bright);outline-offset:4px}

/* ---------- 图片容器 ---------- */
.media{
  position:relative;display:block;width:100%;overflow:hidden;
  border:3px solid var(--ink);border-radius:var(--radius);
  background:linear-gradient(135deg,var(--indigo-mid),var(--teal));
  box-shadow:6px 6px 0 rgba(10,15,38,.85);
}
.media--wide{aspect-ratio:16/9}
.media--square{aspect-ratio:1/1}
.media--tall{aspect-ratio:3/4}
.media--band{aspect-ratio:21/9}
.media img{width:100%;height:100%;object-fit:cover}
.media__placeholder{
  position:absolute;inset:0;
  display:grid;place-items:center;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  color:rgba(244,241,232,.8);
  background:radial-gradient(circle at 30% 25%,rgba(232,182,76,.45),transparent 55%),
             linear-gradient(135deg,var(--indigo-mid),var(--teal) 70%,var(--purple));
}
.media__caption{
  position:absolute;left:12px;bottom:12px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  padding:4px 11px;border-radius:999px;
  background:var(--ink);color:var(--paper);
}

/* ---------- 显现与回到顶部 ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity var(--dur) ease,transform var(--dur) ease}
[data-reveal].is-visible{opacity:1;transform:none}
.to-top{
  position:fixed;right:16px;bottom:16px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 15px;
  border:3px solid var(--ink);border-radius:999px;
  background:var(--gold);color:var(--ink);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  box-shadow:4px 4px 0 var(--ink);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--dur) ease,transform var(--dur) ease,visibility var(--dur) ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top__arrow{font-size:14px;line-height:1}
.to-top:hover{background:var(--teal-bright)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--header-h:196px}
  .grid--asym,.grid--asym-rev{grid-template-columns:1fr}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .footer__brand{grid-column:1 / -1}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .masthead__bar{flex-direction:column;align-items:stretch;gap:0}
  .nav-toggle{align-self:flex-end}
  .site-nav{display:none}
  .site-nav[data-open]{display:block}
  .site-nav__list{flex-direction:column;gap:0;justify-content:flex-start;margin-top:8px}
  .site-nav__list a{display:block;padding:13px 12px;border-radius:0;border-bottom:1px solid rgba(244,241,232,.16)}
  .site-nav__list a[aria-current="page"]{border-radius:var(--radius-sm)}
}
@media (max-width:680px){
  :root{--header-h:158px}
  .masthead{padding:10px 16px 0}
  .masthead__stamp{display:none}
  .masthead__ticker{justify-content:center;border-bottom:0;padding-bottom:4px}
  .masthead__quick{justify-content:center;width:100%}
  .brandmark{padding:8px 0 4px}
  .brandmark__cn{font-size:clamp(30px,9vw,40px)}
  .brandmark__en{letter-spacing:.28em}
  .masthead__sub{font-size:12px;letter-spacing:.2em}
  .masthead__bar{margin-top:8px;padding:6px 0 10px}
  .site-header.is-condensed .masthead__ticker{display:none}
  .grid--2,.grid--3{grid-template-columns:1fr}
  .section{padding:32px 0}
  .footer__grid{grid-template-columns:1fr;padding:32px 16px 24px}
  .footer__bottom{padding:18px 16px 30px;align-items:flex-start}
  .footer__seal{width:54px;height:54px;font-size:20px}
  .wrap,.breadcrumb{padding-inline:16px}
  .scroll-track > *{flex:0 0 84%}
}

@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}
  [data-reveal]{opacity:1;transform:none}
  .to-top{transform:none}
}