*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  position:relative;
  margin:0;
  min-height:100vh;
  background:var(--color-paper);
  color:var(--color-ink);
  font-family:var(--font-sans);
  font-size:1rem;
  line-height:1.8;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(42,75,124,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42,75,124,.05) 1px, transparent 1px);
  background-size:24px 24px;
}
:root{
  --color-paper:#F5F2EB;
  --color-rock:#6B6B6B;
  --color-moss:#4A6B5D;
  --color-clay:#C77B5C;
  --color-ink:#1F1F1F;
  --color-white:#FFFFFF;
  --color-porcelain:#2A4B7C;
  --color-vermillion:#B03A2E;
  --color-line:rgba(31,31,31,.14);
  --color-line-soft:rgba(31,31,31,.08);
  --container:1280px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-serif:"Songti SC","SimSun","STSong",serif;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
img{display:block;max-width:100%;height:auto}
ul[class],ol[class]{list-style:none}
a{
  color:var(--color-porcelain);
  text-decoration-thickness:1px;
  text-decoration-color:rgba(42,75,124,.4);
}
a:hover{color:var(--color-clay);text-decoration-color:currentColor}
:focus-visible{
  outline:2px solid var(--color-clay);
  outline-offset:3px;
  border-radius:2px;
}
::selection{background:rgba(74,107,93,.18)}
h1,h2,h3,h4,h5,h6{line-height:1.3;color:var(--color-ink);font-weight:800}
#main-content{position:relative;z-index:1;min-height:60vh}

.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,48px);
}
.grid{
  display:grid;
  gap:24px;
}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.split{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:40px;
  align-items:start;
}
.split--aside{
  grid-template-columns:minmax(0,1.65fr) minmax(260px,1fr);
}
.visually-hidden{
  position:absolute;
  width:1px;
  height:1px;
  margin:-1px;
  padding:0;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

.skip-link{
  position:fixed;
  top:8px;
  left:8px;
  z-index:2000;
  transform:translateY(-220%);
  background:var(--color-ink);
  color:var(--color-paper);
  padding:8px 16px;
  border-radius:2px;
  font-weight:600;
  text-decoration:none;
}
.skip-link:focus{transform:translateY(0)}

.site-progress{
  position:fixed;
  top:0;
  left:0;
  width:0;
  height:3px;
  background:var(--color-clay);
  z-index:1000;
  pointer-events:none;
}

.site-header{
  position:relative;
  z-index:200;
  background:var(--color-paper);
  border-bottom:1px solid var(--color-line);
  transition:box-shadow .2s ease;
}
.site-header::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:3px;
  pointer-events:none;
  background:linear-gradient(90deg,var(--color-moss) 0 36%,var(--color-clay) 36% 58%,var(--color-ink) 58% 100%);
}
body[data-scrolled] .site-header{box-shadow:0 2px 10px rgba(31,31,31,.08)}

.masthead{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;
  gap:16px;
  max-width:var(--container);
  margin-inline:auto;
  padding:24px clamp(18px,4vw,48px) 16px;
}
.masthead__index{
  font-size:.7rem;
  font-weight:700;
  letter-spacing:.16em;
  line-height:1.4;
  color:var(--color-rock);
  white-space:nowrap;
  padding:4px 0;
  border-top:1px solid var(--color-line);
  border-bottom:1px solid var(--color-line);
}
.masthead__index--left{justify-self:start}
.masthead__index--right{justify-self:end}
.masthead__brand{
  display:block;
  text-align:center;
  text-decoration:none;
  color:var(--color-ink);
}
.masthead__brand:hover{color:var(--color-ink)}
.masthead__title{
  display:block;
  font-family:var(--font-serif);
  font-weight:700;
  font-size:clamp(1.45rem,2.6vw,2.4rem);
  letter-spacing:.14em;
  line-height:1.2;
}
.masthead__subtitle{
  display:block;
  margin-top:6px;
  font-size:.7rem;
  font-weight:500;
  letter-spacing:.38em;
  color:var(--color-rock);
  text-indent:.38em;
}

.site-nav{
  max-width:var(--container);
  margin-inline:auto;
  padding:0 clamp(18px,4vw,48px);
  border-top:1px solid var(--color-line);
}
.site-nav__menu{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 30px;
  margin:0;
  padding:10px 0 8px;
}
.site-nav__link{
  display:block;
  padding:6px 2px;
  color:var(--color-ink);
  font-weight:600;
  font-size:.95rem;
  letter-spacing:.08em;
  text-decoration:none;
  border-bottom:2px solid transparent;
  transition:color .2s,border-color .2s;
}
.site-nav__link:hover{
  color:var(--color-clay);
  border-bottom-color:var(--color-clay);
}
.site-nav__link[aria-current="page"]{
  color:var(--color-moss);
  border-bottom-color:var(--color-moss);
}
.site-nav__toggle{display:none}

.site-nav__toggle-icon{
  position:relative;
  width:18px;
  height:14px;
  flex:none;
}
.site-nav__toggle-icon::before,
.site-nav__toggle-icon::after{
  content:"";
  position:absolute;
  left:0;
  width:100%;
  height:1px;
  background:currentColor;
}
.site-nav__toggle-icon::before{
  top:2px;
  box-shadow:0 5px 0 currentColor;
}
.site-nav__toggle-icon::after{top:12px}
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-icon::before{
  top:6px;
  box-shadow:none;
  transform:rotate(45deg);
}
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-icon::after{
  top:6px;
  transform:rotate(-45deg);
}
.site-nav__toggle[aria-expanded="true"]{color:var(--color-moss)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.4em;
  padding:.6em 1.1em;
  border:1px solid var(--color-moss);
  background:transparent;
  color:var(--color-moss);
  font:inherit;
  font-weight:700;
  letter-spacing:.04em;
  text-decoration:none;
  cursor:pointer;
  border-radius:2px;
  transition:background .2s,color .2s,border-color .2s,box-shadow .2s;
}
.btn:hover{
  background:var(--color-moss);
  color:var(--color-paper);
  border-color:var(--color-moss);
  box-shadow:0 2px 8px rgba(74,107,93,.16);
}
.btn--primary{
  background:var(--color-moss);
  color:var(--color-paper);
}
.btn--primary:hover{
  background:var(--color-ink);
  border-color:var(--color-ink);
}
.btn--ghost{
  border-color:var(--color-rock);
  color:var(--color-ink);
}
.btn--ghost:hover{
  background:rgba(199,123,92,.08);
  border-color:var(--color-clay);
  color:var(--color-clay);
  box-shadow:none;
}
.btn--small{
  padding:.35em .8em;
  font-size:.82rem;
}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:20px 0 8px;
  font-size:.84rem;
  color:var(--color-rock);
}
.breadcrumb__item{
  display:inline-flex;
  align-items:center;
}
.breadcrumb__item + .breadcrumb__item::before{
  content:"/";
  margin-right:10px;
  color:var(--color-line);
  font-weight:700;
}
.breadcrumb__link{
  color:var(--color-porcelain);
  text-decoration:none;
}
.breadcrumb__link:hover{color:var(--color-clay)}
.breadcrumb__item[aria-current="page"]{
  color:var(--color-moss);
  font-weight:700;
}

.section-title{
  display:flex;
  align-items:baseline;
  gap:16px;
  margin:48px 0 24px;
  font-size:clamp(1.35rem,2.4vw,2rem);
  font-weight:800;
  letter-spacing:.02em;
  color:var(--color-ink);
}
.section-title__index{
  flex:none;
  font-size:.72rem;
  font-weight:800;
  letter-spacing:.2em;
  color:var(--color-clay);
  border:1px solid var(--color-line);
  background:var(--color-white);
  padding:2px 8px;
  border-radius:2px;
}
.section-title__line{
  flex:1;
  min-width:24px;
  height:1px;
  background:var(--color-line);
  align-self:center;
}

.index-label{
  display:inline-block;
  font-size:.7rem;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--color-moss);
  border:1px solid var(--color-moss);
  padding:2px 8px;
  border-radius:2px;
}

.card{
  background:var(--color-white);
  border:1px solid var(--color-line);
  box-shadow:0 1px 3px rgba(31,31,31,.05);
  padding:24px;
}
.card--flat{box-shadow:none}
.card__title{
  font-size:1.12rem;
  font-weight:800;
  color:var(--color-ink);
}
.card__meta{
  margin-top:4px;
  font-size:.8rem;
  letter-spacing:.04em;
  color:var(--color-rock);
}
.card__body{
  margin-top:12px;
  font-size:.95rem;
  color:var(--color-ink);
}
.card__footer{
  margin-top:16px;
}

.table-wrap{
  overflow-x:auto;
  background:var(--color-white);
  border:1px solid var(--color-line);
}
.data-table{
  width:100%;
  border-collapse:collapse;
  font-size:.9rem;
  color:var(--color-ink);
}
.data-table th,
.data-table td{
  border-bottom:1px solid var(--color-line-soft);
  padding:12px 14px;
  text-align:left;
  vertical-align:top;
}
.data-table thead th{
  background:var(--color-paper);
  font-size:.76rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--color-moss);
  border-bottom:1px solid var(--color-line);
  white-space:nowrap;
}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table tbody tr:hover{background:rgba(199,123,92,.06)}
.data-table__figure{
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--color-ink);
}

.media{
  position:relative;
  overflow:hidden;
  background:linear-gradient(135deg,rgba(74,107,93,.1),rgba(42,75,124,.08));
  border:1px solid var(--color-line);
}
.media::after{
  content:"影像";
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-serif);
  font-size:.72rem;
  letter-spacing:.24em;
  color:rgba(31,31,31,.25);
  z-index:0;
}
.media img{
  position:relative;
  z-index:1;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--3x4{aspect-ratio:3/4}
.media--1x1{aspect-ratio:1/1}
.media__caption{
  position:absolute;
  z-index:2;
  right:0;
  bottom:0;
  left:0;
  padding:10px 12px;
  background:linear-gradient(transparent,rgba(31,31,31,.72));
  color:var(--color-paper);
  font-size:.78rem;
  letter-spacing:.04em;
}

.prose{
  max-width:72ch;
  line-height:1.9;
  color:var(--color-ink);
}
.prose p + p{margin-top:1.2em}
.prose h2,
.prose h3{
  margin-top:2em;
  margin-bottom:.5em;
}
.prose blockquote{
  margin:1.6em 0;
  padding:.4em 0 .4em 1.2em;
  border-left:3px solid var(--color-clay);
  color:var(--color-rock);
  font-family:var(--font-serif);
  font-size:1.05em;
}
.prose a{color:var(--color-porcelain)}
.prose ul,
.prose ol{
  margin:1em 0;
  padding-left:1.4em;
}
.prose li + li{margin-top:.4em}

.site-footer{
  position:relative;
  z-index:1;
  background:var(--color-ink);
  color:rgba(245,242,235,.78);
  border-top:3px solid var(--color-moss);
  font-size:.9rem;
}
.site-footer::before{
  content:"";
  display:block;
  height:1px;
  pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(199,123,92,.7),transparent);
}
.footer-main{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,2fr) minmax(0,1.2fr);
  gap:40px;
  padding-top:44px;
  padding-bottom:32px;
}
.footer-brand__name{
  font-family:var(--font-serif);
  font-size:1.55rem;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--color-paper);
}
.footer-brand__desc{
  margin-top:4px;
  color:var(--color-clay);
  letter-spacing:.06em;
  font-size:.85rem;
}
.footer-brand__trust{
  margin-top:14px;
  font-size:.82rem;
  line-height:1.9;
  color:rgba(245,242,235,.52);
}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.footer-nav__title{
  margin-bottom:12px;
  padding-bottom:8px;
  border-bottom:1px solid rgba(245,242,235,.18);
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.22em;
  color:var(--color-paper);
}
.footer-nav__list li + li{margin-top:8px}
.footer-nav__list a{
  color:rgba(245,242,235,.72);
  text-decoration:none;
  transition:color .2s,padding-left .2s;
}
.footer-nav__list a:hover{
  color:var(--color-clay);
  padding-left:4px;
}
.footer-contact__list li{
  display:flex;
  gap:8px;
  line-height:1.7;
}
.footer-contact__list li + li{margin-top:10px}
.footer-contact__list li::before{
  content:"·";
  color:var(--color-clay);
  font-weight:700;
}
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 24px;
  padding:16px 0 20px;
  border-top:1px solid rgba(245,242,235,.14);
  font-size:.76rem;
  color:rgba(245,242,235,.46);
}
.footer-legal__icp{color:rgba(245,242,235,.6)}
.footer-legal a{
  color:rgba(245,242,235,.66);
  text-decoration:none;
}
.footer-legal a:hover{color:var(--color-clay)}

@media (max-width:1024px){
  .footer-main{
    grid-template-columns:1fr 1fr;
  }
  .footer-brand{
    grid-column:1/-1;
  }
  .footer-contact{
    grid-column:1/-1;
  }
}
@media (max-width:900px){
  .grid--3,
  .grid--4{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .split,
  .split--aside{
    grid-template-columns:1fr;
  }
}
@media (max-width:768px){
  .masthead{
    grid-template-columns:minmax(0,1fr) auto;
    padding:16px 16px 12px;
    gap:8px 12px;
  }
  .masthead__index--left{display:none}
  .masthead__brand{
    text-align:left;
  }
  .masthead__index--right{
    align-self:center;
  }
  .site-nav{
    padding:0;
    border-top:1px solid var(--color-line);
  }
  .site-nav__toggle{
    display:flex;
    align-items:center;
    justify-content:space-between;
    width:100%;
    padding:12px 16px;
    background:transparent;
    border:0;
    border-bottom:1px solid var(--color-line-soft);
    font:inherit;
    font-weight:700;
    color:var(--color-ink);
    cursor:pointer;
  }
  .site-nav__menu{
    display:none;
    flex-direction:column;
    gap:0;
    padding:0;
    background:var(--color-white);
  }
  .site-nav[data-open] .site-nav__menu{
    display:flex;
  }
  .site-nav__item{
    width:100%;
  }
  .site-nav__link{
    padding:12px 16px;
    border-bottom:1px solid var(--color-line-soft);
    border-left:2px solid transparent;
    color:var(--color-ink);
  }
  .site-nav__link:hover{
    background:rgba(74,107,93,.06);
    border-left-color:var(--color-clay);
  }
  .site-nav__link[aria-current="page"]{
    color:var(--color-moss);
    border-left-color:var(--color-moss);
    border-bottom-color:var(--color-line-soft);
  }
}
@media (max-width:640px){
  .footer-main{
    grid-template-columns:1fr;
    gap:28px;
  }
  .footer-brand,
  .footer-contact{
    grid-column:auto;
  }
  .footer-nav{
    grid-template-columns:1fr 1fr;
  }
  .footer-legal{
    flex-direction:column;
    align-items:flex-start;
    gap:6px 16px;
  }
}
@media (max-width:580px){
  .grid--2,
  .grid--3,
  .grid--4{
    grid-template-columns: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;
  }
}