*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit}
::selection{background:rgba(43,212,125,.35);color:#fff}

:root{
  --ink:#0B1E2D;
  --ink-deep:#071620;
  --teal:#103B45;
  --violet:#20254A;
  --wine:#5B1F2B;
  --green:#2BD47D;
  --gold:#F5C04A;
  --orange:#FF7A45;
  --ice:#F5F7F2;
  --mist:#A8B8C4;
  --mint:#79E0C1;
  --glass:rgba(174,199,214,.16);
  --glass-soft:rgba(174,199,214,.08);
  --line:rgba(168,184,196,.22);
  --line-strong:rgba(168,184,196,.4);
  --rail-w:272px;
  --gutter:clamp(1.1rem,4vw,3.5rem);
  --maxw:1180px;
  --font-display:"Barlow Condensed","DIN Condensed","Oswald","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Consolas,"Courier New",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

body{
  min-height:100vh;
  background:
    radial-gradient(120% 78% at 84% -12%,rgba(32,37,74,.92) 0%,transparent 56%),
    radial-gradient(90% 68% at 0% 102%,rgba(16,59,69,.78) 0%,transparent 62%),
    var(--ink);
  color:var(--ice);
  font-family:var(--font-body);
  font-size:clamp(1rem,.35vw + .94rem,1.09rem);
  line-height:1.75;
  letter-spacing:.01em;
  padding-left:0;
  transition:padding-left .26s var(--ease);
}
body.is-nav-open{overflow:hidden}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.02;letter-spacing:.005em;color:var(--ice);text-wrap:balance}
h1{font-size:clamp(2.4rem,4vw,4.2rem)}
h2{font-size:clamp(1.7rem,3vw,2.3rem)}
h3{font-size:clamp(1.15rem,1.6vw,1.4rem);line-height:1.22}
p{text-wrap:pretty}

.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:600}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;top:12px;left:12px;z-index:300;
  padding:.7rem 1.05rem;border-radius:3px;
  background:var(--green);color:#062419;
  font-family:var(--font-mono);font-weight:600;font-size:.8125rem;letter-spacing:.06em;
  text-decoration:none;
  transform:translateY(-190%);
  transition:transform .2s var(--ease);
  box-shadow:0 10px 26px rgba(0,0,0,.45);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0)}

/* ---------- 头部外壳 ---------- */
.site-header{position:relative;z-index:100}

.topbar{
  position:sticky;top:0;z-index:120;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.6rem var(--gutter);
  background:linear-gradient(180deg,rgba(11,30,45,.97),rgba(11,30,45,.82));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}

.brand{display:inline-flex;align-items:center;gap:.6rem;min-width:0;text-decoration:none;color:var(--ice)}
.brand__mark{
  display:grid;place-items:center;flex:0 0 auto;
  width:2.15rem;height:2.15rem;border-radius:3px;
  background:linear-gradient(140deg,var(--green),var(--mint));
  color:#062419;font-family:var(--font-display);font-weight:800;font-size:1.35rem;line-height:1;
  box-shadow:0 0 0 1px rgba(43,212,125,.35),0 8px 18px rgba(43,212,125,.18);
}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{font-family:var(--font-display);font-weight:800;font-size:1.15rem;line-height:1.05;letter-spacing:.02em}
.brand__sub{font-family:var(--font-mono);font-size:.6875rem;line-height:1.5;letter-spacing:.1em;color:var(--mist)}
.brand--compact .brand__mark{width:1.9rem;height:1.9rem;font-size:1.15rem}
.brand--compact .brand__name{font-size:1rem}
.brand--compact .brand__sub{font-size:.625rem}

.nav-toggle{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.5rem .7rem;border-radius:3px;
  border:1px solid var(--line);background:var(--glass-soft);
  color:var(--ice);cursor:pointer;
  transition:border-color .18s,color .18s,background .18s;
}
.nav-toggle__label{font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.14em}
.nav-toggle__bars{display:block;width:20px}
.nav-toggle__bars i{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .22s var(--ease),opacity .18s}
.nav-toggle__bars i+i{margin-top:4px}
.nav-toggle:hover{border-color:rgba(43,212,125,.55);color:var(--green)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 侧边轨道 ---------- */
.rail{
  position:fixed;inset:0 auto 0 0;width:var(--rail-w);z-index:130;
  display:flex;flex-direction:column;gap:1.05rem;
  padding:1.5rem 1.15rem 1.25rem;
  overflow-y:auto;
  background:linear-gradient(178deg,rgba(16,59,69,.95) 0%,rgba(11,30,45,.98) 58%,rgba(32,37,74,.95) 100%);
  border-right:1px solid var(--line);
  transition:transform .26s var(--ease),opacity .26s var(--ease),visibility .26s;
}
.rail::before{
  content:"";position:absolute;top:0;left:0;width:2px;height:100%;
  background:linear-gradient(180deg,var(--green) 0%,rgba(245,192,74,.85) 44%,transparent 82%);
  opacity:.85;pointer-events:none;
}
.rail:focus{outline:none}
.rail__head{display:flex;align-items:flex-start;justify-content:space-between;gap:.6rem;padding-bottom:.85rem;border-bottom:1px solid var(--line)}
.rail__close{
  display:none;
  padding:.35rem .6rem;border-radius:3px;border:1px solid var(--line);
  font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.1em;color:var(--mist);cursor:pointer;
  transition:color .18s,border-color .18s;
}
.rail__close:hover{color:var(--orange);border-color:rgba(255,122,69,.6)}
.rail__label{font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.16em;text-transform:uppercase;color:var(--mist);margin-bottom:.15rem}
.rail__list{display:flex;flex-direction:column;gap:.2rem}
.rail__item{display:block}
.nav-link{
  display:grid;grid-template-columns:2rem 1fr;align-items:center;gap:.55rem;
  padding:.5rem .6rem;border-radius:3px;border:1px solid transparent;
  text-decoration:none;color:var(--ice);
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.nav-link__idx{font-family:var(--font-mono);font-size:.7rem;font-weight:600;letter-spacing:.04em;color:var(--mist);transition:color .18s}
.nav-link__txt{font-size:.9375rem;line-height:1.4;letter-spacing:.02em}
.nav-link:hover{background:var(--glass);border-color:rgba(43,212,125,.35);transform:translateX(2px)}
.nav-link:hover .nav-link__idx{color:var(--green)}
.nav-link[aria-current="page"]{
  background:linear-gradient(90deg,rgba(43,212,125,.22),rgba(43,212,125,.04));
  border-color:rgba(43,212,125,.55);
  box-shadow:inset 3px 0 0 var(--green);
}
.nav-link[aria-current="page"] .nav-link__idx{color:var(--gold)}
.nav-link[aria-current="page"] .nav-link__txt{color:#fff;font-weight:500}
.rail__cta{width:100%;margin-top:.15rem}
.rail__panel{
  display:flex;flex-direction:column;gap:.4rem;
  padding:.75rem .8rem;border-radius:3px;
  background:var(--glass-soft);border:1px solid var(--line);
}
.rail__panel--status{background:linear-gradient(150deg,rgba(32,37,74,.66),rgba(16,59,69,.5))}
.rail__panel .rail__label{margin-bottom:0}
.rail__meta{font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.06em;color:var(--mist)}
.progress{position:relative;height:5px;border-radius:99px;background:rgba(168,184,196,.2);overflow:hidden}
.progress__bar{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--green),var(--mint) 55%,var(--gold));transition:width .15s linear}
.statuslist{display:flex;flex-direction:column;gap:.35rem}
.statuslist__item{display:flex;align-items:center;gap:.5rem;font-size:.8125rem;line-height:1.4;color:var(--mist)}
.dot{flex:0 0 auto;width:7px;height:7px;border-radius:50%;background:var(--mist)}
.dot--on{background:var(--green);box-shadow:0 0 0 3px rgba(43,212,125,.18)}
.dot--gold{background:var(--gold);box-shadow:0 0 0 3px rgba(245,192,74,.16)}
.rail__collapse{
  margin-top:auto;align-self:flex-start;
  padding:.4rem .65rem;border-radius:3px;border:1px dashed var(--line);
  font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.1em;color:var(--mist);cursor:pointer;
  transition:color .18s,border-color .18s;
}
.rail__collapse:hover{color:var(--green);border-color:rgba(43,212,125,.5)}

.rail-tab{
  display:none;
  position:fixed;left:1rem;bottom:1rem;z-index:140;
  align-items:center;gap:.4rem;
  padding:.55rem .85rem;border-radius:3px;
  border:1px solid var(--line-strong);background:rgba(16,59,69,.94);color:var(--ice);
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.12em;cursor:pointer;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  box-shadow:0 10px 26px rgba(0,0,0,.42);
  transition:color .18s,border-color .18s;
}

.scrim{
  position:fixed;inset:0;z-index:125;
  background:rgba(7,22,32,.62);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s;
}
.scrim[data-visible]{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.45rem;
  padding:.72rem 1.1rem;border-radius:3px;border:1px solid transparent;
  font-family:var(--font-display);font-weight:800;font-size:1rem;line-height:1.15;letter-spacing:.05em;
  text-decoration:none;cursor:pointer;
  transition:transform .16s var(--ease),background .18s,border-color .18s,color .18s,box-shadow .18s;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--whistle{background:var(--orange);color:#2A1108;box-shadow:0 8px 22px rgba(255,122,69,.24)}
.btn--whistle:hover{background:#FF8E60;box-shadow:0 10px 26px rgba(255,122,69,.34)}
.btn--green{background:var(--green);color:#062419}
.btn--green:hover{background:#48E393}
.btn--ghost{border-color:var(--line-strong);background:var(--glass-soft);color:var(--ice)}
.btn--ghost:hover{border-color:var(--green);color:var(--green)}
.btn--block{width:100%}

/* ---------- 通用内容组件 ---------- */
.breadcrumbs{padding-top:clamp(.9rem,2.4vw,1.6rem)}
.breadcrumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem;font-family:var(--font-mono);font-size:.75rem;letter-spacing:.06em;color:var(--mist)}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:.45rem}
.breadcrumbs__item+.breadcrumbs__item::before{content:"/";color:rgba(168,184,196,.5)}
.breadcrumbs__link{color:var(--mist);text-decoration:none;border-bottom:1px solid transparent;transition:color .16s,border-color .16s}
.breadcrumbs__link:hover{color:var(--green);border-color:currentColor}
.breadcrumbs__item[aria-current="page"]{color:var(--ice)}

.section{padding-block:clamp(2.2rem,5.5vw,4.2rem)}
.section--tight{padding-block:clamp(1.4rem,3.5vw,2.4rem)}
.section__head{display:grid;gap:.55rem;max-width:64ch;margin-bottom:clamp(1.1rem,3vw,2rem)}
.section__title{font-size:clamp(1.6rem,2.6vw,2.2rem)}
.section__note{font-size:.9375rem;line-height:1.7;color:var(--mist)}
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-mono);font-size:.75rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}
.eyebrow::before{content:"";width:1.6rem;height:2px;background:linear-gradient(90deg,var(--gold),transparent)}
.lead{max-width:62ch;font-size:clamp(1.05rem,1.5vw,1.22rem);line-height:1.72;color:rgba(245,247,242,.92)}
.prose{max-width:72ch;color:rgba(245,247,242,.9)}
.prose p+p{margin-top:1.05em}
.prose h2,.prose h3{margin-top:1.6em;margin-bottom:.5em}
.prose a{color:var(--mint);text-decoration:underline;text-underline-offset:3px}
.divider{height:1px;border:0;margin-block:clamp(1.6rem,4vw,2.6rem);background:linear-gradient(90deg,var(--line),transparent)}

.grid{display:grid;gap:clamp(.9rem,2.2vw,1.5rem)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(min(100%,18rem),1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(min(100%,15rem),1fr))}

.card{
  position:relative;padding:clamp(1rem,2.2vw,1.5rem);border-radius:4px;
  border:1px solid var(--line);background:var(--glass-soft);
  transition:border-color .2s,background .2s,transform .2s var(--ease);
}
.card--solid{background:linear-gradient(160deg,var(--teal),rgba(11,30,45,.92));border-color:rgba(121,224,193,.2)}
.card--glass{background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.card--wine{background:linear-gradient(160deg,var(--wine),rgba(32,37,74,.88));border-color:rgba(245,192,74,.22)}
.card__num{display:block;margin-bottom:.5rem;font-family:var(--font-mono);font-weight:600;font-size:.75rem;letter-spacing:.14em;color:var(--gold)}
.card__title{font-size:1.125rem;line-height:1.25;margin-bottom:.4rem}
.card__text{font-size:.9375rem;line-height:1.7;color:var(--mist)}

.tag{display:inline-flex;align-items:center;gap:.35rem;padding:.24rem .55rem;border-radius:2px;font-family:var(--font-mono);font-size:.6875rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--mint);background:rgba(121,224,193,.12);border:1px solid rgba(121,224,193,.3)}
.tag--gold{color:var(--gold);background:rgba(245,192,74,.12);border-color:rgba(245,192,74,.34)}
.tag--wine{color:#F6D8DC;background:rgba(91,31,43,.78);border-color:rgba(246,216,220,.24)}
.tag--orange{color:#FFD2C0;background:rgba(255,122,69,.14);border-color:rgba(255,122,69,.4)}

.img-frame{position:relative;isolation:isolate;overflow:hidden;border-radius:4px;border:1px solid var(--line);background:linear-gradient(150deg,var(--teal),var(--violet))}
.img-frame>img,.img-frame>svg{width:100%;height:100%;object-fit:cover}
.img-frame::after{content:"";position:absolute;inset:auto 0 0 0;height:55%;z-index:0;pointer-events:none;background:linear-gradient(180deg,transparent,rgba(11,30,45,.8))}
.img-frame--wide{aspect-ratio:16/9}
.img-frame--square{aspect-ratio:1}
.img-frame--tall{aspect-ratio:4/5}
.img-frame--court{background-image:repeating-linear-gradient(90deg,rgba(121,224,193,.16) 0 1px,transparent 1px 68px),repeating-linear-gradient(0deg,rgba(121,224,193,.12) 0 1px,transparent 1px 68px),linear-gradient(150deg,var(--teal),var(--violet))}
.img-frame__cap{position:absolute;left:0;bottom:0;z-index:1;padding:.65rem .9rem;font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.08em;color:var(--mist)}

/* ---------- 页脚 ---------- */
.footer{
  position:relative;z-index:5;
  margin-top:clamp(2.6rem,7vw,5rem);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(32,37,74,.74),rgba(11,30,45,.98) 58%);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.footer__inner{width:100%;max-width:var(--maxw);margin-inline:auto;padding:clamp(2rem,4.5vw,3.4rem) var(--gutter) 1.25rem}
.footer__grid{display:grid;grid-template-columns:1fr;gap:clamp(1.4rem,3vw,2.4rem)}
.footer__brand{display:grid;align-content:start;gap:.55rem}
.footer__name{font-family:var(--font-display);font-weight:800;font-size:clamp(1.35rem,2.4vw,1.75rem);line-height:1.05;letter-spacing:.02em;color:var(--ice)}
.footer__tagline{font-size:.9375rem;letter-spacing:.02em;color:var(--mint)}
.footer__note{max-width:38ch;font-size:.8125rem;line-height:1.7;color:var(--mist)}
.footer__col{display:grid;align-content:start;gap:.65rem}
.footer__title{font-family:var(--font-mono);font-size:.6875rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}
.footer__list{display:grid;gap:.35rem}
.footer__link{display:inline-block;font-size:.9375rem;color:rgba(245,247,242,.86);text-decoration:none;border-bottom:1px solid transparent;transition:color .16s,border-color .16s,transform .16s var(--ease)}
.footer__link:hover{color:var(--green);border-color:currentColor;transform:translateX(2px)}
.footer__contact{margin-top:clamp(1.6rem,3.5vw,2.4rem);padding-top:clamp(1.1rem,2.5vw,1.5rem);border-top:1px solid var(--line);display:grid;grid-template-columns:1fr;gap:.9rem}
.contact-list{display:grid;gap:.55rem}
.contact-item{display:grid;grid-template-columns:5.2rem 1fr;align-items:baseline;gap:.6rem}
.contact-item__key{font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.1em;color:var(--mist)}
.contact-item__val{font-size:.9375rem;line-height:1.6;color:var(--ice)}
.copy{display:inline-flex;align-items:center;gap:.5rem;max-width:100%;padding:.15rem .1rem;border-radius:3px;border-bottom:1px solid var(--line);color:var(--ice);text-align:left;cursor:pointer;transition:border-color .16s,color .16s}
.copy:hover{border-color:var(--green);color:var(--mint)}
.copy__val{font-family:var(--font-mono);font-size:.875rem;font-weight:600;letter-spacing:.01em;overflow-wrap:anywhere}
.copy__hint{flex:0 0 auto;padding:.05rem .3rem;border-radius:2px;border:1px solid rgba(245,192,74,.35);font-family:var(--font-mono);font-size:.625rem;letter-spacing:.12em;color:var(--gold);transition:color .16s,background .16s,border-color .16s}
.copy[data-copied="ok"] .copy__hint{background:var(--green);border-color:var(--green);color:#062419}
.copy[data-copied="fail"] .copy__hint{background:var(--orange);border-color:var(--orange);color:#2A1108}
.footer__note--contact{max-width:44ch;font-size:.8125rem;color:var(--mist)}
.meta-bar{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem 1.2rem;margin-top:clamp(1.4rem,3vw,2rem);padding-top:1rem;border-top:1px solid var(--line)}
.meta-bar__icp{font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.08em;color:var(--mist)}
.meta-bar__copy{font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.08em;color:var(--mist)}
.top-btn{margin-left:auto;padding:.4rem .7rem;border-radius:3px;border:1px solid var(--line);background:var(--glass-soft);font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.1em;color:var(--ice);cursor:pointer;transition:border-color .16s,color .16s}
.top-btn:hover{border-color:var(--orange);color:var(--orange)}

/* ---------- 显现 ---------- */
html.js [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
html.js [data-reveal].is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (min-width:720px){
  .footer__grid{grid-template-columns:1.3fr 1fr 1fr}
  .footer__contact{grid-template-columns:1.35fr 1fr;align-items:start}
}

@media (max-width:1023px){
  .rail{
    width:min(86vw,352px);
    padding-top:1.1rem;
    transform:translateX(-104%);
    visibility:hidden;
    box-shadow:0 0 0 1px rgba(121,224,193,.12),26px 0 60px rgba(0,0,0,.55);
  }
  .rail[data-open]{transform:translateX(0);visibility:visible}
  .rail__close{display:inline-flex;align-items:center}
  .rail__collapse{display:none}
}

@media (min-width:1024px){
  body{padding-left:var(--rail-w)}
  html.rail-collapsed body{padding-left:0}
  html.rail-collapsed .rail{transform:translateX(-100%);opacity:0;visibility:hidden}
  html.rail-collapsed .rail-tab{display:inline-flex}
  .rail-tab:hover{border-color:rgba(43,212,125,.6);color:var(--green)}
  .topbar{display:none}
  .nav-toggle{display:none}
  .scrim{display:none}
}

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