:root{
  --c-navy:#0A1D3C;
  --c-navy-deep:#07152B;
  --c-orange:#FF6A00;
  --c-orange-dark:#D95B00;
  --c-silver:#C0C0C0;
  --c-cream:#F5F0E8;
  --c-ink:#2B1D14;
  --c-blue-soft:#89A5D4;
  --c-sand:#E8DCC8;
  --c-white:#FFFFFF;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  --font-display:"Inter","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular","Cascadia Code",Consolas,monospace;
  --fs-hero:clamp(64px,11vw,120px);
  --fs-title:clamp(36px,5vw,64px);
  --fs-body:16px;
  --radius-lg:24px;
  --radius-md:14px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px rgba(10,29,60,.12);
  --ease-out:cubic-bezier(.22,.61,.36,1);
  --speed-fast:180ms;
  --speed:300ms;
  --header-h:104px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html.is-nav-open{overflow:hidden}
body{font-family:var(--font-sans);font-size:var(--fs-body);line-height:1.7;color:var(--c-ink);background:var(--c-cream);-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.15}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit}
::selection{background:var(--c-orange);color:var(--c-white)}
:focus-visible{outline:3px solid var(--c-orange);outline-offset:2px;border-radius:6px}
#main-content{scroll-margin-top:calc(var(--header-h) + 8px);display:block}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;transition-delay:0s !important}
}
.wrap{width:100%;max-width:1440px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}
.section{position:relative;padding:clamp(72px,9vw,140px) 0}
.section--cream{background:var(--c-cream)}
.section--sand{background:var(--c-sand)}
.section--navy{background:var(--c-navy);color:rgba(245,240,232,.8)}
.section--navy .display-title{color:var(--c-cream)}
.section--navy .display-sub{color:rgba(245,240,232,.7)}
.section > .wrap{position:relative;z-index:1}
.section-head{position:relative;z-index:1;max-width:820px;margin-bottom:clamp(32px,5vw,64px)}
.kicker{display:inline-flex;align-items:center;gap:12px;font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.26em;text-transform:uppercase;color:var(--c-orange)}
.kicker::before{content:"";width:34px;height:2px;border-radius:2px;background:var(--c-orange)}
.display-title{font-family:var(--font-display);font-weight:200;font-size:var(--fs-title);line-height:1.04;letter-spacing:-.01em;color:var(--c-navy);margin:18px 0 20px}
.display-sub{font-size:16px;line-height:1.7;color:rgba(43,29,20,.72);max-width:62ch}
.index-num{font-family:var(--font-mono);font-size:13px;color:var(--c-orange);letter-spacing:.08em}
.page-head{max-width:1440px;margin:0 auto;padding:clamp(48px,7vw,96px) clamp(20px,4vw,48px) clamp(28px,4vw,56px)}
.hero{position:relative;overflow:hidden;display:flex;align-items:flex-end;min-height:min(92vh,960px);padding:clamp(48px,8vw,120px) 0}
.hero > .wrap{position:relative;z-index:1}
.hero-title{font-family:var(--font-display);font-weight:200;font-size:var(--fs-hero);line-height:.96;letter-spacing:-.02em;color:var(--c-navy);margin:0}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.prose{max-width:70ch;font-size:16px;line-height:1.8;color:var(--c-ink)}
.prose p{margin-bottom:1.2em}
.prose h2{font-family:var(--font-display);font-weight:600;font-size:clamp(22px,3vw,30px);margin:2em 0 .6em;color:var(--c-navy)}
.prose h3{font-family:var(--font-display);font-weight:600;font-size:clamp(18px,2.4vw,22px);margin:1.6em 0 .5em;color:var(--c-navy)}
.prose ul{margin-bottom:1.2em}
.prose ul li{position:relative;padding-left:24px;margin-bottom:.5em}
.prose ul li::before{content:"—";position:absolute;left:0;color:var(--c-orange)}
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:1024px){
  .grid-cols-3,.grid-cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .grid-cols-2,.grid-cols-3,.grid-cols-4{grid-template-columns:1fr}
}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 28px;border-radius:var(--radius-pill);border:1px solid transparent;font-family:var(--font-display);font-weight:700;font-size:15px;letter-spacing:.02em;line-height:1;cursor:pointer;transition:background var(--speed) var(--ease-out),color var(--speed) var(--ease-out),border-color var(--speed) var(--ease-out),transform var(--speed) var(--ease-out),box-shadow var(--speed) var(--ease-out)}
.btn-primary{background:var(--c-orange);color:var(--c-white)}
.btn-primary:hover{background:var(--c-orange-dark);transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,106,0,.32)}
.btn-ghost{background:transparent;color:var(--c-navy);border-color:rgba(10,29,60,.32)}
.btn-ghost:hover{background:var(--c-navy);color:var(--c-cream);border-color:var(--c-navy);transform:translateY(-2px)}
.btn-large{padding:18px 40px;font-size:17px}
.btn-small{padding:10px 22px;font-size:13px}
.section--navy .btn-ghost{color:var(--c-cream);border-color:rgba(245,240,232,.5)}
.section--navy .btn-ghost:hover{background:var(--c-cream);color:var(--c-navy);border-color:var(--c-cream)}
.pill{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--radius-pill);border:1px solid rgba(10,29,60,.2);font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--c-navy);background:rgba(255,255,255,.55)}
.pill--solid{background:var(--c-navy);border-color:var(--c-navy);color:var(--c-cream)}
.pill--hot{background:var(--c-orange);border-color:var(--c-orange);color:var(--c-white)}
.data-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:500}
.media{position:relative;overflow:hidden;border-radius:var(--radius-lg);background:linear-gradient(135deg,var(--c-blue-soft) 0%,var(--c-navy) 130%);box-shadow:var(--shadow-1)}
.media-16x9{aspect-ratio:16/9}
.media-4x5{aspect-ratio:4/5}
.media-1x1{aspect-ratio:1/1}
.media-cover{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.media-tone{position:absolute;inset:0;background:linear-gradient(120deg,rgba(10,29,60,.28) 0%,rgba(255,106,0,.14) 55%,rgba(245,240,232,.1) 100%);pointer-events:none}
.media-caption{position:absolute;left:16px;bottom:14px;margin:0;padding:6px 14px;background:rgba(10,29,60,.72);color:var(--c-cream);border-radius:var(--radius-pill);font-size:12px;letter-spacing:.04em;backdrop-filter:blur(4px)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:24px;font-family:var(--font-mono);font-size:12px;color:var(--c-navy)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:var(--c-orange);font-weight:700}
.breadcrumb a{color:rgba(10,29,60,.66);transition:color var(--speed-fast) var(--ease-out)}
.breadcrumb a:hover{color:var(--c-orange)}
.breadcrumb [aria-current="page"]{color:var(--c-ink);font-weight:700}
.speed-lines{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.speed-lines i{position:absolute;display:block;height:2px;background:linear-gradient(90deg,var(--c-orange),transparent);border-radius:2px;opacity:.22;transform:skewX(-45deg)}
.speed-lines i:nth-child(1){top:26%;right:4%;width:44%}
.speed-lines i:nth-child(2){top:44%;right:18%;width:26%;opacity:.12}
.speed-lines i:nth-child(3){bottom:20%;right:-4%;width:58%;opacity:.18}
.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:400;pointer-events:none;background:rgba(10,29,60,.12)}
.scroll-progress-bar{display:block;width:100%;height:100%;background:var(--c-orange);transform-origin:0 50%;transform:scaleX(0);box-shadow:0 0 12px rgba(255,106,0,.5)}
.skip-link{position:fixed;top:16px;left:16px;z-index:500;padding:12px 22px;background:var(--c-orange);color:var(--c-white);border-radius:var(--radius-pill);font-family:var(--font-display);font-weight:700;font-size:14px;box-shadow:0 8px 24px rgba(255,106,0,.4);transform:translateY(-160%);transition:transform var(--speed) var(--ease-out)}
.skip-link:focus{transform:translateY(0)}
.site-header{position:sticky;top:0;z-index:100;background:var(--c-navy);color:var(--c-cream);border-bottom:4px solid var(--c-orange);width:100%}
.header-coord{position:relative;height:28px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 clamp(20px,4vw,48px);border-bottom:1px solid rgba(192,192,192,.25);font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;color:var(--c-silver);text-transform:uppercase;white-space:nowrap;overflow:hidden}
.header-coord::after{content:"";position:absolute;right:0;bottom:-1px;width:260px;height:1px;background:repeating-linear-gradient(90deg,var(--c-orange) 0 6px,transparent 6px 14px);opacity:.4}
.coord-item{display:inline-flex;align-items:center;gap:8px}
.coord-item + .coord-item::before{content:"◆";font-size:6px;color:var(--c-orange)}
.header-main{position:relative;max-width:1440px;margin:0 auto;padding:0 clamp(20px,4vw,48px);height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0;flex-shrink:0}
.brand-mark{width:44px;height:44px;flex:0 0 44px;border-radius:14px;background:linear-gradient(135deg,var(--c-orange),#FF9340);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:800;font-size:20px;color:var(--c-white);box-shadow:inset 0 0 0 1px rgba(255,255,255,.25)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-family:var(--font-display);font-weight:800;font-size:20px;letter-spacing:.04em;color:var(--c-white);white-space:nowrap}
.brand-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;color:var(--c-silver);text-transform:uppercase;white-space:nowrap}
.site-nav{display:flex;align-items:center;gap:4px}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{display:inline-flex;align-items:baseline;gap:8px;padding:10px 13px;border-radius:var(--radius-pill);font-family:var(--font-display);font-size:15px;font-weight:600;letter-spacing:.02em;color:rgba(245,240,232,.82);transition:background var(--speed-fast) var(--ease-out),color var(--speed-fast) var(--ease-out),box-shadow var(--speed-fast) var(--ease-out),transform var(--speed-fast) var(--ease-out)}
.nav-link:hover{background:rgba(255,106,0,.14);color:var(--c-white);transform:translateY(-1px)}
.nav-link:active{transform:none}
.nav-index{font-family:var(--font-mono);font-size:10px;font-weight:500;color:var(--c-orange);letter-spacing:.06em}
.nav-link[aria-current="page"]{background:var(--c-orange);color:var(--c-white);box-shadow:0 4px 16px rgba(255,106,0,.4)}
.nav-link[aria-current="page"] .nav-index{color:rgba(255,255,255,.92)}
.nav-toggle{display:none}
.site-footer{position:relative;background:var(--c-navy);color:rgba(245,240,232,.82);margin-top:clamp(80px,10vw,140px)}
.footer-topline{height:5px;background:repeating-linear-gradient(90deg,var(--c-orange) 0 24px,transparent 24px 48px);opacity:.75}
.footer-frame{max-width:1440px;margin:0 auto;padding:clamp(48px,6vw,84px) clamp(20px,4vw,48px) 40px;width:100%}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1.2fr) minmax(0,1fr);gap:clamp(28px,4vw,64px)}
.footer-block{min-width:0}
.brand--footer .brand-mark{width:48px;height:48px;flex-basis:48px;border-radius:16px;font-size:22px}
.brand--footer .brand-name{font-size:22px}
.footer-trust{font-size:14px;line-height:1.7;color:rgba(245,240,232,.72);margin:22px 0 28px;max-width:36ch}
.footer-heading{display:flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;color:var(--c-orange);margin-bottom:22px}
.footer-heading::before{content:"";flex:0 0 26px;height:2px;background:var(--c-orange)}
.footer-links li + li{margin-top:2px}
.footer-links a{position:relative;display:inline-block;padding:6px 0;color:rgba(245,240,232,.8);font-size:14px;letter-spacing:.02em;transition:color var(--speed-fast) var(--ease-out)}
.footer-links a::before{content:"→";position:absolute;right:calc(100% + 8px);top:50%;font-family:var(--font-mono);font-size:11px;color:var(--c-orange);transform:translateY(-50%) translateX(-4px);opacity:0;transition:opacity var(--speed-fast) var(--ease-out),transform var(--speed-fast) var(--ease-out)}
.footer-links a:hover{color:var(--c-white)}
.footer-links a:hover::before{opacity:1;transform:translateY(-50%) translateX(0)}
.footer-links a[aria-current="page"]{color:var(--c-orange)}
.footer-contact-list li{display:grid;grid-template-columns:76px 1fr;gap:12px;padding:9px 0;border-bottom:1px dashed rgba(192,192,192,.18)}
.footer-contact-list li:last-child{border-bottom:0}
.contact-label{font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--c-silver);text-transform:uppercase;line-height:1.8}
.contact-value{font-size:14px;color:rgba(245,240,232,.85);word-break:break-all;line-height:1.8}
.footer-support{font-family:var(--font-mono);font-size:12px;color:var(--c-silver);margin-top:20px;letter-spacing:.04em}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;margin-top:clamp(36px,5vw,56px);padding-top:24px;border-top:1px solid rgba(192,192,192,.22);font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--c-silver)}
html.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .5s var(--ease-out),transform .5s var(--ease-out);transition-delay:var(--reveal-delay,0s)}
html.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html.js .reveal,html.js .reveal.is-visible{opacity:1;transform:none;transition:none}
}
@media (max-width:1024px){
  :root{--header-h:98px}
  .header-main{height:66px}
  .nav-toggle{display:inline-flex;align-items:center;gap:10px;padding:8px 16px;border:1px solid rgba(192,192,192,.4);border-radius:var(--radius-pill);color:var(--c-cream);font-size:13px;font-weight:600;transition:border-color var(--speed) var(--ease-out),background var(--speed) var(--ease-out)}
  .nav-toggle:hover{border-color:var(--c-orange);background:rgba(255,106,0,.12)}
  .nav-toggle-lines{display:inline-flex;flex-direction:column;gap:4px}
  .nav-toggle-lines span{display:block;width:18px;height:2px;border-radius:2px;background:currentColor;transition:transform var(--speed) var(--ease-out),opacity var(--speed) var(--ease-out)}
  .nav-toggle[aria-expanded="true"] .nav-toggle-lines span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] .nav-toggle-lines span:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] .nav-toggle-lines span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .nav-toggle-text{line-height:1}
  .nav-toggle-label-open{display:inline}
  .nav-toggle-label-close{display:none}
  .nav-toggle[aria-expanded="true"] .nav-toggle-label-open{display:none}
  .nav-toggle[aria-expanded="true"] .nav-toggle-label-close{display:inline}
  .site-nav{position:fixed;top:var(--header-h);right:0;bottom:0;z-index:150;width:min(420px,100%);padding:32px 24px 40px;background:linear-gradient(180deg,var(--c-navy) 0%,var(--c-navy-deep) 100%);border-left:1px solid rgba(192,192,192,.22);box-shadow:-24px 0 60px rgba(7,21,43,.4);overflow-y:auto;visibility:hidden;transform:translateX(105%);transition:transform var(--speed) var(--ease-out),visibility var(--speed) var(--ease-out)}
  .site-nav[data-open]{visibility:visible;transform:translateX(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{width:100%;justify-content:space-between;align-items:center;padding:16px 20px;font-size:17px;border-radius:16px;background:rgba(255,255,255,.04)}
  .nav-link:hover{background:rgba(255,106,0,.16)}
  .grid-cols-3,.grid-cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
  .coord-geo{display:none}
}
@media (max-width:640px){
  .grid-cols-2,.grid-cols-3,.grid-cols-4{grid-template-columns:1fr}
}
@media (max-width:600px){
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  :root{--header-h:86px}
  .header-coord{height:24px;font-size:9px}
  .header-main{height:58px}
  .brand-mark{width:38px;height:38px;flex-basis:38px;border-radius:12px;font-size:16px}
  .brand-name{font-size:17px}
  .brand-sub{font-size:9px;letter-spacing:.14em}
  .coord-season{display:none}
  .footer-bottom{justify-content:center;text-align:center}
}