*,*::before,*::after{box-sizing:border-box}
:root{--green:#0B3D2E;--ivory:#F5F0E6;--gold:#C9A44A;--gray:#5B6B5E;--red:#8C2F2F;--carbon:#121212;--clay:#C67D5E;--glow:#EFDCA8;--ink:#2B2B28;--mut:rgba(245,240,230,.72);--ln:rgba(201,164,74,.4);--sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;--serif:"Noto Serif SC","Songti SC",SimSun,serif;--mono:"JetBrains Mono","IBM Plex Mono",Consolas,monospace;--w:1240px;--ease:cubic-bezier(.4,0,.2,1)}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--serif);font-size:1rem;line-height:1.7;color:var(--ink);background:var(--ivory)}
p,ul,figure{margin:0}ul{padding:0;list-style:none}
h1,h2,h3,h4{margin:0 0 .5em;font-family:var(--sans);font-weight:900;line-height:1.18;color:var(--green)}
a{color:var(--green);text-underline-offset:3px}
a:hover{color:var(--red)}
img,svg{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
.container{max-width:var(--w);margin-inline:auto;padding-inline:clamp(1rem,4vw,2.5rem)}
#main-content{display:block;min-height:65vh}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link{position:fixed;top:-100px;left:1rem;z-index:200;background:var(--gold);color:var(--carbon);font-family:var(--sans);font-weight:700;padding:.6rem 1rem;text-decoration:none;transition:top .2s}
.skip-link:focus{top:1rem}
:focus-visible{outline:2px solid var(--clay);outline-offset:3px}
.site-header{position:relative;z-index:50;background:rgba(11,61,46,.96);border-bottom:1px solid var(--ln)}
.site-header::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--gold),var(--glow) 55%,var(--gold))}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:2rem;min-height:4.75rem}
.brand{display:flex;align-items:center;gap:.7rem;color:var(--ivory);text-decoration:none}
.brand:hover{color:var(--glow)}
.brand-badge{display:grid;place-items:center;width:2.4rem;height:2.4rem;font-family:var(--sans);font-weight:900;color:var(--carbon);background:linear-gradient(135deg,var(--gold),var(--glow));clip-path:polygon(0 0,100% 0,100% 78%,78% 100%,0 100%)}
.brand-name{font-family:var(--sans);font-weight:900;font-size:1.375rem;letter-spacing:.08em}
.brand-note{display:block;font-family:var(--mono);font-size:.625rem;letter-spacing:.18em;color:var(--gold)}
.site-nav-list{display:flex;align-items:center;gap:.25rem}
.site-nav-link{position:relative;display:block;padding:.65rem .85rem;font-family:var(--sans);font-weight:700;font-size:.906rem;color:var(--ivory);text-decoration:none;transition:color .2s}
.site-nav-link::after{content:"";position:absolute;left:.85rem;right:.85rem;bottom:.3rem;height:2px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.site-nav-link:hover,.site-nav-link[aria-current="page"]{color:var(--glow)}
.site-nav-link:hover::after,.site-nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-toggle{display:none;position:relative;z-index:130;flex-direction:column;justify-content:center;gap:5px;width:2.75rem;height:2.75rem;padding:.55rem;border:1px solid var(--ln)}
.nav-toggle-bar{display:block;height:2px;background:var(--gold);transition:transform .25s var(--ease),opacity .25s}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.header-strip{max-width:var(--w);margin:0 auto;padding:.4rem clamp(1rem,4vw,2.5rem) .55rem;border-left:3px solid var(--gold);font-family:var(--mono);font-size:.75rem;letter-spacing:.12em;color:var(--mut)}
.site-footer{border-top:3px solid var(--gold);background:var(--carbon);color:var(--ivory);margin-top:4rem;padding:3.5rem 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:2.5rem;padding-bottom:2.5rem}
.footer-logo{font-family:var(--sans);font-weight:900;font-size:1.5rem;letter-spacing:.1em;color:var(--glow)}
.footer-desc{margin:.7rem 0 0;max-width:34em;font-size:.875rem;color:var(--mut)}
.footer-icp{display:inline-block;margin-top:.7rem;padding:.28rem .6rem;border:1px solid var(--ln);font-family:var(--mono);font-size:.75rem;color:var(--gold)}
.footer-col+.footer-col{border-left:1px dashed var(--ln);padding-left:2rem}
.footer-title{margin:0 0 1rem;font-family:var(--sans);font-size:.8125rem;font-weight:700;letter-spacing:.2em;color:var(--gold)}
.footer-links li{margin:.45rem 0}
.footer-links a{font-family:var(--sans);font-size:.875rem;color:rgba(245,240,230,.82);text-decoration:none;transition:color .2s,padding-left .2s}
.footer-links a:hover{color:var(--glow);padding-left:.25rem}
.footer-meta{margin-top:1rem;font-family:var(--mono);font-size:.8125rem;line-height:1.9;color:rgba(245,240,230,.6)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:.8rem 2rem;justify-content:space-between;align-items:baseline;max-width:var(--w);margin:0 auto;padding:1.25rem clamp(1rem,4vw,2.5rem) 1.5rem;border-top:1px dashed var(--ln)}
.footer-status{font-family:var(--mono);font-size:.8125rem;color:rgba(245,240,230,.65)}
.footer-note{max-width:58em;font-size:.8125rem;color:rgba(245,240,230,.45)}
.backtop{position:fixed;right:1.25rem;bottom:1.25rem;z-index:90;width:3rem;height:3rem;font-size:1.375rem;line-height:1;color:var(--carbon);background:var(--gold);clip-path:polygon(0 0,100% 0,100% calc(100% - .7rem),calc(100% - .7rem) 100%,0 100%);opacity:0;pointer-events:none;transform:translateY(.5rem);transition:opacity .25s var(--ease),transform .25s var(--ease)}
.backtop[data-show]{opacity:1;pointer-events:auto;transform:none}
.backtop:hover{background:var(--glow)}
.btn{display:inline-flex;align-items:center;gap:.55rem;padding:.8rem 1.4rem;border:1px solid transparent;font-family:var(--sans);font-weight:700;font-size:.9375rem;line-height:1;text-decoration:none;transition:background .2s,color .2s,border-color .2s}
.btn-primary{background:var(--green);color:var(--ivory)}
.btn-primary:hover{background:#0E4A38;color:var(--ivory)}
.btn-ghost{border-color:var(--gold);color:var(--green)}
.btn-ghost:hover{background:var(--gold);color:var(--carbon)}
.page-hero{position:relative;overflow:hidden;padding:clamp(2.5rem,6vw,4.5rem) 0;background:var(--green);color:var(--ivory)}
.page-hero h1{color:var(--ivory);font-size:clamp(2.25rem,5vw,3.75rem)}
.page-hero .lead{max-width:62ch;font-size:1.0625rem;color:rgba(245,240,230,.85)}
.breadcrumb{padding:1rem 0 0;font-family:var(--mono);font-size:.8125rem;letter-spacing:.06em;color:var(--gray)}
.breadcrumb a{color:var(--gray)}
.breadcrumb a:hover{color:var(--red)}
.breadcrumb .sep{margin:0 .4rem;color:var(--gold)}
.section-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:1rem;margin-bottom:1.5rem}
.section-title{margin:0;font-size:clamp(1.75rem,3vw,3rem)}
.section-sub{color:var(--gray);font-size:.9375rem}
.idx{font-family:var(--mono);font-size:.8125rem;letter-spacing:.12em;color:var(--gold)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:1.5rem}
.data-card{position:relative;padding:1.25rem 1.375rem;border:1px solid rgba(11,61,46,.14);border-top:3px solid var(--gold);background:#fff;transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.data-card:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(11,61,46,.14)}
.data-card .hint{position:absolute;left:0;right:0;bottom:0;padding:.85rem 1.125rem;background:rgba(11,61,46,.95);color:var(--ivory);font-family:var(--sans);font-size:.8125rem;pointer-events:none;opacity:0;transform:translateY(.4rem);transition:opacity .2s,transform .2s}
.data-card:hover .hint{opacity:1;transform:none}
.stat-num{font-family:var(--mono);font-size:2rem;line-height:1.1;color:var(--green)}
.filter-bar{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid rgba(11,61,46,.15)}
.filter-btn{padding:.4rem .9rem;border:1px solid rgba(11,61,46,.3);font-family:var(--sans);font-weight:700;font-size:.875rem;color:var(--green);transition:color .2s,border-color .2s,background .2s}
.filter-btn:hover{border-color:var(--gold);color:var(--gold)}
.filter-btn[aria-pressed="true"]{background:var(--green);border-color:var(--green);color:var(--ivory)}
[data-filter-item][hidden]{display:none}
.img-frame{position:relative;overflow:hidden;background:var(--gray)}
.img-frame img{width:100%;height:100%;object-fit:cover}
.img-frame::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(120deg,rgba(11,61,46,.14) 30%,transparent 72%)}
.ratio-16x10{aspect-ratio:16/10}
.ratio-4x5{aspect-ratio:4/5}
.clip-angled{clip-path:polygon(0 0,100% 0,100% calc(100% - 1.4rem),calc(100% - 1.4rem) 100%,0 100%)}
@media(max-width:900px){
.nav-toggle{display:flex}
.site-nav{position:fixed;top:0;right:0;bottom:0;z-index:120;width:min(78vw,380px);padding:5.5rem 1.5rem 2rem;background:rgba(11,61,46,.98);border-left:1px solid var(--ln);overflow-y:auto;visibility:hidden;transform:translateX(105%);transition:transform .3s var(--ease),visibility .3s}
.site-nav[data-open]{visibility:visible;transform:translateX(0)}
.site-nav-list{flex-direction:column;align-items:stretch}
.site-nav-link{padding:1rem .5rem;font-size:1.0625rem;border-bottom:1px dashed var(--ln)}
}
@media(max-width:600px){
.footer-grid{grid-template-columns:1fr;gap:1.5rem}
.footer-col+.footer-col{border:0;padding:0}
.brand-note{display:none}
}
@media(prefers-reduced-motion:reduce){
*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
html{scroll-behavior:auto}
}