:root{
  --deep:#0E2439;
  --navy:#17415F;
  --mist:#4E6070;
  --pale:#6E8296;
  --brick:#A5432B;
  --brick-lt:#C8694C;
  --brass:#B4894A;
  --paper:#F4EFE6;
  --paper-old:#E7DDCA;
  --ink:#14161A;
  --white:#FFFFFF;

  --font-title:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun","Times New Roman",serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Consolas,"Courier New",monospace;

  --fs-display:clamp(56px,7.6vw,112px);
  --fs-h1:48px;
  --fs-lead:20px;
  --fs-meta:13px;
  --fs-body:18px;

  --space-section:96px;
  --gutter:clamp(20px,4vw,48px);
  --wrap:1240px;
  --radius:3px;
  --radius-lg:14px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:240ms;
  --border:1px solid rgba(78,96,112,.26);
}

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

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:152px;
}

body{
  margin:0;
  background-color:var(--paper);
  background-image:linear-gradient(rgba(78,96,112,.03) 1px,transparent 1px);
  background-size:100% 8px;
  color:var(--ink);
  font-family:var(--font-body);
  font-size:var(--fs-body);
  line-height:1.9;
  letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:var(--font-title);
  font-weight:700;
  line-height:1.24;
  color:var(--deep);
}
h1{font-size:var(--fs-h1);letter-spacing:-.01em}
h2{font-size:clamp(24px,3.4vw,34px)}
h3{font-size:19px}

p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}

ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
address{font-style:normal}
table{border-collapse:collapse;width:100%}
hr{border:0;border-top:var(--border);margin:0}

:focus-visible{outline:2px solid var(--brick);outline-offset:3px;border-radius:2px}
.site-footer :focus-visible,
.zone-strip :focus-visible,
.status-bar :focus-visible{outline-color:var(--brass)}

::selection{background:var(--brick);color:var(--white)}

.wrap{
  width:min(var(--wrap),100% - (var(--gutter) * 2));
  margin-inline:auto;
}
.wrap--narrow{width:min(880px,100% - (var(--gutter) * 2))}

.mono{
  font-family:var(--font-mono);
  font-size:var(--fs-meta);
  letter-spacing:.08em;
  font-variant-numeric:tabular-nums;
  text-transform:uppercase;
}

.visually-hidden{
  position:absolute;
  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;
}

.grid{display:grid;gap:var(--gutter)}
.grid--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.grid--5-7{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.grid--4-8{grid-template-columns:minmax(0,4fr) minmax(0,8fr)}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.stack > * + *{margin-top:1.1em}

.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:13px 26px;
  border-radius:999px;
  font-family:var(--font-title);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn--primary{background:var(--brick);color:var(--white);border:1px solid var(--brick)}
.btn--primary:hover{background:var(--brick-lt);border-color:var(--brick-lt)}
.btn--ghost{background:transparent;color:var(--deep);border:1px solid var(--mist)}
.btn--ghost:hover{border-color:var(--brick);color:var(--brick)}
.btn--on-dark{background:transparent;color:var(--paper);border:1px solid rgba(180,137,74,.7)}
.btn--on-dark:hover{background:var(--brass);border-color:var(--brass);color:var(--deep)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--mist);
}
.crumbs__item{color:var(--mist)}
.crumbs__item:hover{color:var(--brick)}
.crumbs__item[aria-current="page"]{color:var(--ink)}
.crumbs__sep{color:var(--pale)}

.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border:1px solid rgba(78,96,112,.35);
  border-radius:999px;
  background:var(--white);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--navy);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.tag:hover{border-color:var(--brick-lt);color:var(--brick)}
.tag--active{background:var(--deep);border-color:var(--deep);color:var(--paper)}
.tag--brass{border-color:rgba(180,137,74,.55);color:var(--brass)}

.tag-drift{
  display:flex;
  gap:10px;
  width:max-content;
  animation:tagDrift 40s linear infinite;
}
.tag-drift:hover{animation-play-state:paused}
@keyframes tagDrift{
  from{transform:translateX(0)}
  to{transform:translateX(-50%)}
}

.zone-01{--zone-color:var(--navy)}
.zone-02{--zone-color:var(--brick)}
.zone-03{--zone-color:var(--brass)}
.zone-04{--zone-color:var(--pale)}

.card{
  position:relative;
  padding:26px 26px 24px 30px;
  background:var(--white);
  border:1px solid rgba(78,96,112,.22);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.card::before{
  content:"";
  position:absolute;
  inset:0 auto 0 0;
  width:4px;
  background:var(--zone-color,var(--brick));
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(165,67,43,.4);
  box-shadow:0 18px 34px -26px rgba(14,36,57,.55);
}
.card__head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:14px;
  margin-bottom:12px;
}
.card__num{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--brass)}
.card__title{margin:0 0 8px;font-family:var(--font-title);font-size:19px;font-weight:700;color:var(--deep)}
.card__meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--mist);white-space:nowrap}
.card__body{font-size:16px;line-height:1.85;color:#2B333C}
.card__more{
  display:block;
  max-height:0;
  overflow:hidden;
  opacity:0;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.04em;
  color:var(--mist);
  transition:max-height var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.card:hover .card__more{max-height:80px;opacity:1}

.media{
  position:relative;
  overflow:hidden;
  background:var(--paper-old);
  border-radius:var(--radius);
}
.media > img{width:100%;height:100%;object-fit:cover;display:block}
.media--3x2{aspect-ratio:3 / 2}
.media--4x5{aspect-ratio:4 / 5}
.media--wide{aspect-ratio:16 / 9}
.media--square{aspect-ratio:1 / 1}
.media--scan::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:repeating-linear-gradient(0deg,rgba(14,36,57,.06) 0 1px,transparent 1px 5px);
  mix-blend-mode:multiply;
}
.media__tag{
  position:absolute;
  left:0;
  bottom:18px;
  padding:6px 16px 6px 14px;
  background:var(--deep);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  border-radius:0 999px 999px 0;
}
.media__cap{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.05em;
  color:var(--mist);
}

.strip{background:var(--navy);color:var(--paper);padding-block:26px}
.strip--paper{background:var(--paper-old);color:var(--ink)}
.strip__title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--brass);
}

.acc{border-top:var(--border)}
.acc__item{border-bottom:var(--border)}
.acc__trigger{
  display:flex;
  align-items:center;
  gap:16px;
  width:100%;
  padding:20px 6px;
  text-align:left;
  font-family:var(--font-title);
  font-size:17px;
  font-weight:700;
  color:var(--deep);
  transition:color var(--dur) var(--ease);
}
.acc__trigger:hover{color:var(--brick)}
.acc__num{flex:0 0 auto;font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--brass)}
.acc__label{flex:1 1 auto}
.acc__sign{position:relative;flex:0 0 auto;width:14px;height:14px}
.acc__sign::before,
.acc__sign::after{
  content:"";
  position:absolute;
  background:currentColor;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.acc__sign::before{left:0;top:6px;width:14px;height:2px}
.acc__sign::after{left:6px;top:0;width:2px;height:14px}
.acc__item.is-open .acc__sign::after{transform:scaleY(0);opacity:0}
.acc__panel{
  display:grid;
  grid-template-rows:0fr;
  opacity:0;
  transition:grid-template-rows var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.acc__item.is-open .acc__panel{grid-template-rows:1fr;opacity:1}
.acc__body{overflow:hidden}
.acc__body > *{max-width:62ch;padding:0 6px 22px}

[data-reveal]{transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease)}
.has-js [data-reveal]{opacity:0;transform:translateY(12px)}
.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
}

.skip-link{
  position:absolute;
  left:12px;
  top:-64px;
  z-index:200;
  padding:10px 18px;
  background:var(--brick);
  color:var(--white);
  font-family:var(--font-title);
  font-size:14px;
  font-weight:700;
  border-radius:0 0 var(--radius) var(--radius);
  transition:top 180ms var(--ease);
}
.skip-link:focus{top:0}

.status-bar{
  background:var(--deep);
  color:var(--brass);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
}
.status-bar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:32px;
  padding-block:5px;
  transition:min-height var(--dur) var(--ease),padding var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.status-bar__log,
.status-bar__zone{margin:0;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em}
.status-bar__pulse{
  display:inline-block;
  width:6px;
  height:6px;
  margin-right:8px;
  border-radius:50%;
  background:var(--brass);
  vertical-align:middle;
}
.status-bar__zone{color:rgba(244,239,230,.6)}
.status-bar__zone .mono{color:var(--brass)}

html.is-scrolled .status-bar__inner{min-height:22px;padding-block:2px;opacity:.66}

.cmd-bar{
  background:var(--white);
  border-bottom:1px solid rgba(78,96,112,.22);
  transition:box-shadow var(--dur) var(--ease);
}
html.is-scrolled .cmd-bar{box-shadow:0 14px 28px -26px rgba(14,36,57,.65)}
.cmd-bar__inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:66px;
}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{
  display:grid;
  place-items:center;
  width:38px;
  height:38px;
  background:var(--brick);
  color:var(--white);
  font-family:var(--font-title);
  font-size:18px;
  font-weight:900;
  border-radius:3px 13px 3px 3px;
}
.brand__text{display:block;line-height:1.25}
.brand__name{
  display:block;
  font-family:var(--font-title);
  font-size:16px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--deep);
}
.brand__sub{
  display:block;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  color:var(--mist);
  text-transform:uppercase;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-left:auto;
  padding:8px 14px;
  border:1px solid rgba(78,96,112,.5);
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--deep);
}
.nav-toggle__bars{position:relative;display:block;width:16px;height:10px}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  height:2px;
  background:currentColor;
  transition:transform var(--dur) var(--ease);
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle.is-open .nav-toggle__bars::before{transform:translateY(4px) rotate(45deg)}
.nav-toggle.is-open .nav-toggle__bars::after{transform:translateY(-4px) rotate(-45deg)}

.site-nav{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-list a{
  position:relative;
  display:block;
  padding:9px 12px;
  border-radius:var(--radius);
  font-family:var(--font-title);
  font-size:15px;
  font-weight:500;
  color:var(--deep);
  white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-list a:hover{background:var(--paper)}
.nav-list a[aria-current="page"]{color:var(--brick);font-weight:700}
.nav-list a[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:3px;
  height:2px;
  background:var(--brick);
}

.nav-search{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:9px 16px;
  border:1px solid var(--deep);
  border-radius:999px;
  font-family:var(--font-title);
  font-size:14px;
  font-weight:600;
  color:var(--deep);
  white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-search::before{
  content:"";
  width:11px;
  height:11px;
  border:2px solid currentColor;
  border-radius:50%;
}
.nav-search:hover{background:var(--deep);color:var(--paper)}

.zone-strip{background:var(--navy);color:var(--paper)}
.zone-strip__inner{
  display:flex;
  align-items:center;
  gap:20px;
  padding-block:12px;
  overflow-x:auto;
  scrollbar-width:thin;
}
.zone-strip__label{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--brass);
  white-space:nowrap;
}
.zone-list{display:flex;flex:0 0 auto;gap:10px;padding-right:8px}
.zone-card{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:8px 15px;
  border:1px solid rgba(180,137,74,.5);
  border-radius:999px;
  color:var(--paper);
  font-family:var(--font-title);
  font-size:14px;
  white-space:nowrap;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.zone-card__num{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--brass)}
.zone-card__name{font-weight:600}
.zone-card__meta{font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:rgba(244,239,230,.55)}
.zone-card:hover{background:var(--brick);border-color:var(--brick)}
.zone-card:hover .zone-card__num,
.zone-card:hover .zone-card__meta{color:rgba(255,255,255,.85)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--space-section);
  background:var(--deep);
  color:rgba(244,239,230,.78);
}
.site-footer a{
  color:rgba(244,239,230,.84);
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-footer a:hover{color:var(--brass)}

.footer-grid{
  display:grid;
  grid-template-columns:1.25fr 1fr 1fr;
  gap:var(--gutter);
  padding-block:64px 48px;
}
.footer-col__title{
  margin-bottom:20px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:400;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--brass);
}
.footer-index li + li{margin-top:2px}
.footer-index a{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:9px 0;
  border-bottom:1px solid rgba(244,239,230,.1);
}
.footer-index__num{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--brass)}
.footer-index__name{font-family:var(--font-title);font-size:15px;font-weight:500;color:rgba(244,239,230,.92)}
.footer-index__meta{
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:rgba(244,239,230,.5);
}
.footer-index a:hover .footer-index__name{color:var(--brass)}

.footer-links li + li{margin-top:10px}
.footer-links a{
  font-family:var(--font-title);
  font-size:15px;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.footer-links a:hover{border-bottom-color:var(--brass)}
.footer-note{
  max-width:32ch;
  margin-top:20px;
  font-size:13px;
  line-height:1.8;
  color:rgba(244,239,230,.5);
}

.footer-contact{display:grid;gap:8px;margin-top:20px;font-size:14px;line-height:1.75}
.footer-contact__row{display:flex;gap:10px;align-items:baseline}
.footer-contact__k{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--brass);
}

.footer-base{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-block:20px 30px;
  border-top:1px solid rgba(244,239,230,.14);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:rgba(244,239,230,.45);
}
.footer-base p{margin:0;font-family:var(--font-mono);font-size:11px}
.footer-base .mono{font-size:11px;color:rgba(244,239,230,.72)}

.footer-base__right{white-space:nowrap}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nav-list a{padding:9px 8px;font-size:14px}
  .cmd-bar__inner{gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:44px}
}

@media (max-width:900px){
  .grid--7-5,
  .grid--5-7,
  .grid--4-8,
  .grid--3{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:880px){
  :root{
    --fs-h1:32px;
    --fs-lead:18px;
    --fs-body:17px;
    --fs-meta:12px;
    --space-section:56px;
    --gutter:20px;
  }
  html{scroll-padding-top:120px}

  .status-bar__inner{flex-wrap:wrap;gap:4px 14px}
  .status-bar__zone{display:none}

  .cmd-bar__inner{flex-wrap:wrap;gap:12px;min-height:0;padding-block:12px}
  .nav-toggle{display:inline-flex}

  .site-nav{
    order:3;
    flex-basis:100%;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin-left:0;
    display:none;
  }
  .site-nav[data-open]{display:flex}

  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-list a{
    padding:13px 4px;
    font-size:17px;
    border-bottom:1px dashed rgba(78,96,112,.26);
    border-radius:0;
  }
  .nav-list a:hover{background:transparent;color:var(--brick)}
  .nav-list a[aria-current="page"]::after{display:none}

  .nav-search{margin-top:16px;justify-content:center}

  .zone-strip__label{display:none}
  .zone-card{padding:7px 13px;font-size:13px}
  .zone-card__meta{display:none}

  .footer-grid{grid-template-columns:1fr;gap:44px;padding-block:48px 36px}
  .footer-note{max-width:none}
  .footer-base{flex-direction:column;align-items:flex-start}
  .footer-base__right{white-space:normal}
}

@media (max-width:560px){
  .brand__sub{display:none}
  .brand__mark{width:34px;height:34px;font-size:16px}
  .card{padding:22px 18px 20px 24px}
  .acc__trigger{font-size:16px;padding:17px 4px}
}

@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  html{scroll-behavior:auto}
  .tag-drift{animation:none}
  .has-js [data-reveal]{opacity:1;transform:none}
}