:root{
  --ink:#14261F;
  --ink-soft:rgba(20,38,31,.68);
  --ink-line:rgba(20,38,31,.14);
  --paper:#F4EFE4;
  --paper-2:#E3DAC7;
  --paper-3:#FBFCFA;
  --teal:#0F6E7F;
  --teal-deep:#0A4550;
  --teal-mist:#CFE3E4;
  --gold:#C9922F;
  --gold-soft:#E8C97E;
  --alert:#C24B32;
  --radius-lg:28px;
  --radius-md:20px;
  --radius-sm:14px;
  --radius-pill:999px;
  --font-display:"Helvetica Neue","Arial Narrow",system-ui,-apple-system,"PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --shell:1240px;
  --gutter:clamp(16px,4vw,40px);
  --space-band:clamp(64px,9vw,128px);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:clamp(16px,.55vw + 14.4px,18px);
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,p,figure,blockquote,ul,ol,dl{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
a{color:var(--teal-deep);text-decoration:none}
a:hover{color:var(--teal)}
button{font:inherit;color:inherit;background:none;border:0}
::selection{background:var(--gold-soft);color:var(--ink)}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:6px}
#main-content{display:block}
#main-content:focus-visible{outline:3px solid var(--teal);outline-offset:6px}

/* ---------- 排版工具 ---------- */
.display-1{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(2.6rem,6vw,4.6rem);
  line-height:1.03;
  letter-spacing:-.02em;
}
.display-2{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(1.85rem,3.6vw,2.75rem);
  line-height:1.12;
  letter-spacing:-.015em;
}
.lede{
  font-size:clamp(17px,1.4vw,20px);
  line-height:1.72;
  color:var(--ink-soft);
  max-width:34em;
}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--teal-deep);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--gold)}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  background:var(--teal-mist);
  color:var(--teal-deep);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  line-height:1.4;
}
.tag--gold{background:rgba(201,146,47,.18);color:#7f5a12}
.rule{border:0;height:1px;background:var(--ink-line);margin:0}
.rule--scale{
  border:0;
  height:10px;
  background-color:transparent;
  background-image:repeating-linear-gradient(90deg,var(--ink-line) 0 1px,transparent 1px 26px);
  background-repeat:repeat-x;
  background-position:left bottom;
  background-size:26px 10px;
  margin:0;
}

/* ---------- 容器与栅格 ---------- */
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 var(--gutter)}
.shell--narrow{max-width:820px}
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--12{grid-template-columns:repeat(12,1fr)}
.grid--cards{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.grid--split{display:grid;grid-template-columns:7fr 5fr;gap:clamp(20px,4vw,56px);align-items:start}
.grid--split-rev{display:grid;grid-template-columns:5fr 7fr;gap:clamp(20px,4vw,56px);align-items:start}

/* ---------- 画板与卡片 ---------- */
.panel{
  background:var(--paper-3);
  border:1px solid var(--ink-line);
  border-radius:var(--radius-lg);
  padding:clamp(22px,3vw,40px);
}
.panel--tint{background:var(--paper-2)}
.panel__head{
  display:flex;
  align-items:baseline;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:18px;
}
.panel__index{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--paper);
  background:var(--teal-deep);
  border-radius:var(--radius-pill);
  padding:4px 12px;
}
.panel__title{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(1.4rem,2.4vw,1.95rem);
  line-height:1.15;
  letter-spacing:-.015em;
}

/* ---------- 数据锚点 ---------- */
.stat{display:grid;gap:6px}
.stat__value{
  font-family:var(--font-mono);
  font-weight:600;
  font-size:clamp(34px,5vw,56px);
  line-height:1;
  color:var(--teal-deep);
  letter-spacing:-.02em;
  border-bottom:3px solid var(--gold-soft);
  padding-bottom:8px;
  justify-self:start;
}
.stat__label{font-size:13px;color:var(--ink-soft);letter-spacing:.02em}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 22px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.25;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn--primary{background:var(--teal-deep);color:var(--paper)}
.btn--primary:hover{background:var(--teal);color:var(--paper);transform:translateY(-2px)}
.btn--gold{background:var(--gold);color:#231a06}
.btn--gold:hover{background:var(--gold-soft);color:#231a06;transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--teal-deep);border-color:rgba(10,69,80,.35)}
.btn--ghost:hover{background:var(--teal-mist);color:var(--teal-deep)}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:0}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px;color:var(--ink-soft)}
.breadcrumb__link{color:var(--teal-deep)}
.breadcrumb__link:hover{color:var(--gold)}
.breadcrumb__sep{color:var(--ink-line)}
.breadcrumb__current{color:var(--ink-soft)}

/* ---------- 图片容器 ---------- */
.media{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--paper-2);
  border:1px solid var(--ink-line);
  aspect-ratio:16/10;
}
.media__img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.03)}
.media--portrait{aspect-ratio:4/5}
.media--square{aspect-ratio:1/1}
.media--band{aspect-ratio:21/9}
.media__caption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:14px 18px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--paper);
  background:linear-gradient(180deg,rgba(20,38,31,0) 0%,rgba(20,38,31,.8) 100%);
}
.media--placeholder{
  display:grid;
  place-items:center;
  text-align:center;
  padding:18px;
  color:var(--teal-deep);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  background-color:var(--paper-2);
  background-image:repeating-linear-gradient(115deg,rgba(15,110,127,.12) 0 1px,transparent 1px 26px);
}

/* ---------- 显现动画 ---------- */
.js [data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .24s ease-out,transform .24s ease-out}
.js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--ink-line);
  isolation:isolate;
}
.site-header::before{
  content:"";
  display:block;
  height:4px;
  background:linear-gradient(90deg,var(--teal) 0%,var(--teal) 62%,var(--gold) 62%,var(--gold) 100%);
}
.skip-link{
  position:absolute;
  left:var(--gutter);
  top:-90px;
  z-index:120;
  padding:10px 18px;
  border-radius:0 0 var(--radius-sm) var(--radius-sm);
  background:var(--ink);
  color:var(--paper);
  font-size:14px;
  transition:top .18s ease;
}
.skip-link:focus{top:0;color:var(--paper)}
.site-header__bar{
  position:relative;
  display:flex;
  align-items:center;
  gap:20px;
  max-width:var(--shell);
  margin:0 auto;
  padding:14px var(--gutter);
  transition:padding .18s ease;
}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand__mark{
  display:grid;
  place-items:center;
  width:42px;height:42px;
  border-radius:var(--radius-sm);
  background:var(--teal-deep);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:14px;
  letter-spacing:.06em;
  box-shadow:inset 0 0 0 1px rgba(244,239,228,.2);
  transition:width .18s ease,height .18s ease,border-radius .18s ease;
}
.brand__text{display:flex;flex-direction:column;line-height:1.25}
.brand__name{font-family:var(--font-display);font-weight:800;font-size:20px;letter-spacing:-.01em}
.brand__sub{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--ink-soft)}
.site-header__pills{display:flex;align-items:center;gap:10px;margin-left:auto}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:var(--radius-pill);
  border:1px solid var(--ink-line);
  background:var(--paper-3);
  color:var(--ink);
  font-size:13px;
  line-height:1.3;
  white-space:nowrap;
}
.pill--state{
  background:var(--teal-mist);
  border-color:rgba(15,110,127,.3);
  color:var(--teal-deep);
  font-family:var(--font-mono);
  letter-spacing:.02em;
}
.pill__dot{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--teal);
  box-shadow:0 0 0 3px rgba(15,110,127,.18);
  flex:none;
}
.pill--cta{
  background:var(--gold);
  border-color:var(--gold);
  color:#231a06;
  font-weight:600;
  transition:background-color .18s ease,transform .18s ease;
}
.pill--cta:hover{background:var(--gold-soft);color:#231a06;transform:translateY(-1px)}
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:10px 14px;
  border-radius:var(--radius-pill);
  border:1px solid var(--ink-line);
  background:var(--paper-3);
  color:var(--ink);
  cursor:pointer;
}
.nav-toggle:hover{background:var(--paper-2)}
.nav-toggle__bars{display:grid;gap:3px;width:18px;flex:none}
.nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease}
.nav-toggle__label{font-size:13px;letter-spacing:.04em}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.site-nav{
  max-width:var(--shell);
  margin:0 auto;
  padding:6px var(--gutter) 14px;
  border-top:1px solid var(--ink-line);
  transition:padding .18s ease;
}
.site-nav__list{display:flex;flex-wrap:wrap;gap:6px}
.site-nav__item{display:flex}
.site-nav__link{
  display:inline-block;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  color:var(--ink-soft);
  font-size:15px;
  line-height:1.4;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.site-nav__link:hover{background:var(--paper-2);color:var(--ink)}
.site-nav__link[data-active="true"]{
  background:var(--teal-mist);
  border-color:rgba(15,110,127,.35);
  color:var(--teal-deep);
  font-weight:600;
}
.site-nav__link[aria-current="page"]{
  background:var(--teal-deep);
  border-color:var(--teal-deep);
  color:var(--paper);
  font-weight:600;
}
.site-header[data-compact="true"] .site-header__bar{padding-top:8px;padding-bottom:8px}
.site-header[data-compact="true"] .site-nav{padding-bottom:8px}
.site-header[data-compact="true"] .site-nav__link{padding:6px 14px;font-size:14px}
.site-header[data-compact="true"] .brand__mark{width:34px;height:34px;border-radius:11px;font-size:12px}
.site-progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:3px;
  pointer-events:none;
  background:transparent;
}
.site-progress__bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--teal) 0%,var(--gold) 100%);
  transition:width .1s linear;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--space-band);
  background:var(--ink);
  color:rgba(244,239,228,.82);
  border-top:4px solid var(--teal);
}
.site-footer__inner{
  max-width:var(--shell);
  margin:0 auto;
  padding:clamp(40px,6vw,72px) var(--gutter) 26px;
}
.footer-top{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:12px 28px;
  padding-bottom:24px;
  border-bottom:1px solid rgba(244,239,228,.16);
}
.footer-brand{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px}
.footer-brand__link{color:var(--paper)}
.footer-brand__link:hover{color:var(--gold-soft)}
.footer-brand__name{font-family:var(--font-display);font-weight:800;font-size:24px;letter-spacing:-.01em}
.footer-brand__tag{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--gold-soft)}
.footer-note{font-size:14px;line-height:1.6;color:rgba(244,239,228,.62);max-width:36em}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:32px 28px;
  padding:32px 0 8px;
}
.footer-col{min-width:0}
.footer-col__title{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--gold-soft);
  margin-bottom:14px;
}
.footer-list{display:grid;gap:8px}
.footer-list__link{
  display:inline-block;
  color:rgba(244,239,228,.82);
  font-size:15px;
  line-height:1.5;
  padding-bottom:2px;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-list__link:hover{color:var(--paper);border-color:var(--gold)}
.footer-list__link[aria-current="page"]{color:var(--gold-soft)}
.footer-contact__row{
  font-size:14px;
  line-height:1.65;
  color:rgba(244,239,228,.76);
  overflow-wrap:anywhere;
}
.footer-contact__label{
  display:block;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:rgba(244,239,228,.45);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px 24px;
  margin-top:28px;
  padding-top:18px;
  border-top:1px solid rgba(244,239,228,.16);
  font-size:13px;
  color:rgba(244,239,228,.55);
}
.footer-bottom__copy,
.footer-bottom__meta{margin:0}
.footer-bottom__meta{font-family:var(--font-mono);letter-spacing:.04em}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .grid--split,.grid--split-rev{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:900px){
  .site-header__bar{flex-wrap:wrap;row-gap:10px}
  .brand{flex:1 1 auto}
  .nav-toggle{display:inline-flex;order:2}
  .site-header__pills{order:3;flex:1 0 100%;margin-left:0;justify-content:flex-start;flex-wrap:wrap;gap:8px}
  .nav-toggle[aria-expanded="true"]{background:var(--teal-mist);border-color:rgba(15,110,127,.35)}
  .site-nav{
    position:absolute;
    left:0;right:0;top:100%;
    max-width:none;
    margin:0;
    padding:12px var(--gutter) 16px;
    display:none;
    background:var(--paper);
    border-top:1px solid var(--ink-line);
    border-bottom:1px solid var(--ink-line);
    box-shadow:0 22px 32px -26px rgba(20,38,31,.7);
  }
  .site-nav[data-open="true"]{display:block}
  .site-nav__list{flex-direction:column;gap:2px}
  .site-nav__link{display:block;padding:12px 14px;border-radius:var(--radius-sm);font-size:16px}
  .site-nav__item{display:block}
  .grid--split,.grid--split-rev{grid-template-columns:1fr}
  .grid--12{grid-template-columns:repeat(6,1fr)}
}
@media (max-width:600px){
  .pill{padding:6px 11px;font-size:12px}
  .brand__mark{width:36px;height:36px;font-size:12px}
  .brand__name{font-size:18px}
  .brand__sub{font-size:10px;letter-spacing:.06em}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-top{padding-bottom:20px}
  .footer-bottom{font-size:12px}
  .display-1{font-size:clamp(2.2rem,9vw,3rem)}
}

/* ---------- 动效与可访问性 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .site-progress__bar{transition:none}
}