:root{
  --navy:#0B1B3A;
  --navy-deep:#071229;
  --ice:#7FC4E8;
  --ice-soft:#D6EBF7;
  --cream:#F5F1E8;
  --stone:#6E7377;
  --turf:#2F7D4F;
  --referee:#C8102E;
  --clay:#B5744A;
  --charcoal:#12161C;
  --ink:var(--charcoal);
  --paper:var(--cream);
  --line:rgba(11,27,58,.16);
  --line-strong:rgba(11,27,58,.34);
  --line-dark:rgba(214,235,247,.22);
  --shell:1300px;
  --gutter:clamp(18px,4.2vw,48px);
  --header-h:74px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-display:"Barlow Condensed","Oswald","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono","SFMono-Regular",Consolas,"Courier New",monospace;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-serif:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun",serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dt,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--referee);outline-offset:3px}
#main-content{scroll-margin-top:var(--header-h)}

body{
  background-color:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:clamp(15.5px,0.55vw + 13px,17px);
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  padding-top:0;
}
p,li,dd{word-break:break-word}
h1,h2,h3,h4,h5{font-family:var(--font-display);font-weight:600;line-height:1.12;letter-spacing:.01em;color:inherit}
strong{font-weight:700}
blockquote{font-family:var(--font-serif);border-left:3px solid var(--clay);padding-left:16px}

.mono,.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:0}
.kicker{display:inline-block;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;color:var(--clay);text-transform:uppercase}
.lede{font-family:var(--font-serif);font-size:clamp(17px,1.5vw,20px);line-height:1.82;color:rgba(18,22,28,.86);max-width:64ch}
.link{color:var(--navy);border-bottom:1px solid var(--ice);transition:color .2s var(--ease),border-color .2s var(--ease)}
.link:hover{color:var(--referee);border-bottom-color:var(--referee)}
.rule{height:1px;background:var(--line);border:0;margin:clamp(20px,3vw,36px) 0}

.shell{width:100%;max-width:var(--shell);margin:0 auto;padding-inline:var(--gutter)}
.shell--narrow{max-width:860px}
.section{position:relative;padding:clamp(46px,7vw,96px) 0}
.section--soft{background:var(--ice-soft)}
.section--dark{background:var(--navy);color:var(--ice-soft)}
.section--dark .section__title{color:var(--cream)}
.section--dark .section__desc{color:rgba(214,235,247,.78)}
.section--dark .section__head{border-bottom-color:var(--line-dark)}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:14px 22px;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:clamp(22px,3vw,40px)}
.section__index{font-family:var(--font-mono);font-size:clamp(26px,3.8vw,44px);line-height:1;color:var(--clay);letter-spacing:-.02em}
.section__title{font-size:clamp(25px,3.2vw,40px);line-height:1.04}
.section__desc{font-size:14.5px;color:var(--stone);max-width:64ch;margin-left:auto}

.grid{display:grid;gap:clamp(16px,2.4vw,32px)}
@media (min-width:900px){
  .grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
  .col-3{grid-column:span 3}
  .col-4{grid-column:span 4}
  .col-5{grid-column:span 5}
  .col-6{grid-column:span 6}
  .col-7{grid-column:span 7}
  .col-8{grid-column:span 8}
  .col-9{grid-column:span 9}
  .col-12{grid-column:span 12}
  .offset-5{grid-column-start:6}
}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;font-family:var(--font-body);font-size:14.5px;font-weight:600;letter-spacing:.06em;line-height:1;border:1px solid transparent;background:var(--navy);color:var(--cream);cursor:pointer;transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease)}
.btn:hover{transform:translateY(-1px)}
.btn--ghost{background:transparent;border-color:currentColor;color:currentColor}
.btn--ghost:hover{background:rgba(127,196,232,.16)}
.btn--accent{background:var(--referee);color:#fff}
.btn--accent:hover{background:#a80c26}
.btn--ice{background:var(--ice);color:var(--navy)}
.btn--quiet{background:var(--ice-soft);color:var(--navy);border-color:transparent}

.tag{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;line-height:1.6;padding:3px 9px;border:1px solid currentColor;color:var(--navy);background:transparent}
.tag--level{color:var(--clay)}
.tag--pos{color:var(--turf)}
.tag--penalty{color:var(--referee);background:rgba(200,16,46,.06)}
.tag--year{color:var(--navy);background:var(--ice-soft);border-color:transparent}

.chip-bar{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;padding:6px 12px;border:1px solid var(--line-strong);color:var(--navy);background:transparent;transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.chip:hover{border-color:var(--navy)}
.chip[aria-pressed="true"]{background:var(--navy);color:var(--ice-soft);border-color:var(--navy)}

.card{position:relative;background:#fff;border:1px solid var(--line-strong);padding:clamp(16px,2vw,26px);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease)}
.card:hover,.card:focus-within{transform:translateY(-2px);box-shadow:0 12px 28px rgba(11,27,58,.12);border-color:var(--navy)}
.card__year{position:absolute;top:-1px;right:-1px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;padding:4px 10px;background:var(--navy);color:var(--ice-soft);opacity:0;transform:translateX(8px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.card:hover .card__year,.card:focus-within .card__year{opacity:1;transform:none}
.card__title{font-family:var(--font-display);font-size:22px;line-height:1.2;margin-bottom:10px}
.card__meta{font-family:var(--font-mono);font-size:12px;color:var(--stone);letter-spacing:.04em}

.stat{border-left:3px solid var(--ice);padding-left:14px}
.stat__value{font-family:var(--font-mono);font-size:clamp(26px,3.6vw,40px);line-height:1;color:var(--navy)}
.stat__label{font-size:13px;color:var(--stone);margin-top:8px}
.stat--turf{border-left-color:var(--turf)}
.stat--turf .stat__value{color:var(--turf)}
.stat--alert{border-left-color:var(--referee)}
.stat--alert .stat__value{color:var(--referee)}

.table-scroll{overflow-x:auto;border:1px solid var(--line-strong);background:#fff}
.data-table{font-size:14.5px;min-width:520px}
.data-table caption{font-family:var(--font-mono);font-size:12px;text-align:left;padding:12px 14px;color:var(--stone);border-bottom:1px solid var(--line)}
.data-table th{font-family:var(--font-display);font-size:13px;font-weight:600;letter-spacing:.1em;text-align:left;padding:11px 14px;background:var(--ice-soft);color:var(--navy);border-bottom:1px solid var(--line-strong);white-space:nowrap}
.data-table td{padding:11px 14px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}
.data-table tbody tr:nth-child(even){background:rgba(214,235,247,.36)}
.data-table tbody tr:hover{background:rgba(127,196,232,.18)}
.data-table td .num{color:var(--navy)}

.panel{border:1px solid var(--line-strong);background:#fff}
.panel + .panel{margin-top:-1px}
.panel__summary{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 18px;font-family:var(--font-display);font-size:19px;cursor:pointer;list-style:none}
.panel__summary::-webkit-details-marker{display:none}
.panel__summary::after{content:"+";font-family:var(--font-mono);font-size:16px;color:var(--referee)}
.panel[open] .panel__summary::after{content:"–"}
.panel[open] .panel__summary{border-bottom:1px solid var(--line);background:var(--ice-soft)}
.panel__body{padding:16px 18px 20px;font-family:var(--font-serif);line-height:1.85}

.breadcrumb{padding:12px 0;border-bottom:1px solid var(--line)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--stone)}
.breadcrumb__item + .breadcrumb__item::before{content:"/";margin-right:8px;color:var(--line-strong)}
.breadcrumb__link:hover{color:var(--navy);text-decoration:underline}
.breadcrumb__current{color:var(--navy)}

.blueprint{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(to right,rgba(127,196,232,.14) 1px,transparent 1px),linear-gradient(to bottom,rgba(127,196,232,.14) 1px,transparent 1px);background-size:72px 72px;opacity:.6}
.blueprint--dense{background-size:24px 24px;opacity:.35}
.edge-slant{clip-path:polygon(0 0,100% 0,100% calc(100% - 48px),0 100%)}

.site-hero{position:relative;overflow:hidden;background:linear-gradient(160deg,var(--navy-deep) 0%,var(--navy) 58%,#0d2a49 100%);color:var(--cream);padding:calc(var(--header-h) + clamp(56px,10vw,120px)) 0 clamp(52px,9vw,104px)}
.page-masthead{position:relative;overflow:hidden;background:var(--navy-deep);color:var(--cream);padding:calc(var(--header-h) + clamp(38px,7vw,84px)) 0 clamp(34px,6vw,62px)}
.page-masthead__title{font-size:clamp(30px,5vw,56px);line-height:1.02}
.page-masthead__desc{margin-top:14px;max-width:64ch;color:rgba(214,235,247,.78);font-size:15.5px}

.media-frame{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--navy);border:1px solid var(--line-strong)}
.media-frame img{width:100%;height:100%;object-fit:cover;filter:saturate(.88) contrast(1.06) brightness(.94)}
.media-frame::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(0deg,rgba(7,18,41,.2) 0 1px,transparent 1px 3px);opacity:.55;mix-blend-mode:multiply}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame__index{position:absolute;top:0;left:0;z-index:2;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;padding:6px 10px;background:var(--navy);color:var(--ice)}
.media-frame__caption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:26px 14px 10px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--ice-soft);background:linear-gradient(180deg,rgba(7,18,41,0),rgba(7,18,41,.88))}

.skip-link{position:absolute;left:var(--gutter);top:8px;z-index:220;transform:translateY(-180%);background:var(--ice);color:var(--navy);font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;padding:9px 14px;transition:transform .2s var(--ease)}
.skip-link:focus{transform:none}

.site-header{position:fixed;top:0;left:0;right:0;z-index:120;color:var(--cream);background:linear-gradient(180deg,rgba(7,18,41,.78) 0%,rgba(7,18,41,.34) 62%,rgba(7,18,41,0) 100%);transition:background-color .35s var(--ease),color .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);border-bottom:1px solid transparent}
.site-header__grid{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(to right,rgba(127,196,232,.12) 1px,transparent 1px);background-size:clamp(48px,7.6vw,96px) 100%}
.site-header__inner{position:relative;z-index:2;display:flex;align-items:center;gap:clamp(12px,1.8vw,26px);max-width:var(--shell);margin:0 auto;padding:0 var(--gutter);min-height:var(--header-h)}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:inherit}
.brand__index{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;border:1px solid currentColor;padding:3px 7px;opacity:.85}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-family:var(--font-display);font-size:20px;letter-spacing:.1em}
.brand__tag{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;opacity:.68;margin-top:3px}
.site-header__hint{margin-left:clamp(8px,1.6vw,24px);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;opacity:.6;white-space:nowrap}
.site-header__actions{display:flex;align-items:center;gap:10px;margin-left:clamp(10px,1.6vw,22px)}
.header-cta{font-family:var(--font-display);letter-spacing:.1em;padding:10px 16px}

.site-nav{display:flex;align-items:center;margin-left:auto}
.site-nav__list{display:flex;align-items:center;gap:clamp(2px,.6vw,8px)}
.site-nav__item{position:relative}
.site-nav__link{position:relative;display:inline-flex;align-items:baseline;gap:6px;padding:10px 12px;font-family:var(--font-display);font-size:16.5px;letter-spacing:.09em;color:currentColor;transition:color .25s var(--ease),background-color .25s var(--ease)}
.site-nav__link::before{content:attr(data-index);font-family:var(--font-mono);font-size:10px;letter-spacing:.02em;opacity:.5}
.site-nav__link::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--ice);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link:hover{color:var(--ice-soft)}
.site-nav__link[aria-current="page"]{color:var(--ice)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--referee)}
.site-nav__link:focus-visible{outline-color:var(--ice)}

.nav-toggle{display:none;align-items:center;gap:8px;padding:8px 10px;border:1px solid currentColor;color:inherit}
.nav-toggle__bars{display:flex;flex-direction:column;justify-content:space-between;width:18px;height:12px}
.nav-toggle__bar{display:block;width:100%;height:1.5px;background:currentColor;transition:transform .3s var(--ease),opacity .2s var(--ease)}
.nav-toggle__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em}
.site-header[data-open] .nav-toggle__bar:nth-child(1){transform:translateY(5.25px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bar:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bar:nth-child(3){transform:translateY(-5.25px) rotate(-45deg)}

.site-header__progress{position:absolute;left:0;right:0;bottom:-1px;z-index:3;height:2px;background:rgba(127,196,232,.16)}
.site-header__progress-bar{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--ice),var(--turf) 58%,var(--referee));transition:width .15s linear}

.site-header[data-scrolled]{background:var(--paper);color:var(--charcoal);border-bottom-color:var(--line-strong);box-shadow:0 6px 22px rgba(11,27,58,.08)}
.site-header[data-scrolled] .site-header__hint{color:var(--stone);opacity:1}
.site-header[data-scrolled] .site-nav__link:hover{color:var(--navy);background:var(--ice-soft)}
.site-header[data-scrolled] .site-nav__link[aria-current="page"]{color:var(--referee)}
.site-header[data-scrolled] .site-nav__link[aria-current="page"]::after{background:var(--referee)}
.site-header[data-scrolled] .brand__tag{color:var(--stone);opacity:1}

.site-footer{position:relative;overflow:hidden;background:var(--navy);color:var(--ice-soft);margin-top:clamp(44px,7vw,96px)}
.site-footer__grid{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(to right,rgba(127,196,232,.1) 1px,transparent 1px),linear-gradient(to bottom,rgba(127,196,232,.1) 1px,transparent 1px);background-size:88px 88px;opacity:.7}
.site-footer__inner{position:relative;max-width:var(--shell);margin:0 auto;padding:clamp(40px,6vw,74px) var(--gutter) clamp(26px,4vw,40px);display:grid;gap:clamp(26px,3.4vw,48px);grid-template-columns:minmax(0,1fr)}
.site-footer__lead{position:relative}
.site-footer__brand{font-family:var(--font-display);font-size:clamp(21px,2.6vw,30px);line-height:1.16;letter-spacing:.05em;color:var(--cream)}
.site-footer__brand::before{content:"";display:block;width:56px;height:3px;background:var(--clay);margin-bottom:16px}
.site-footer__note{margin-top:12px;font-size:13.5px;color:rgba(214,235,247,.7);max-width:36ch}
.site-footer__cta{margin-top:22px}
.footer-nav__title,.footer-contact__title{font-family:var(--font-mono);font-size:11.5px;font-weight:500;letter-spacing:.2em;color:var(--ice);margin-bottom:14px}
.footer-nav__list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 18px}
.footer-nav__item{min-width:0}
.footer-nav__link{display:inline-block;padding:3px 0;font-size:14.5px;color:rgba(214,235,247,.82);border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.footer-nav__link:hover{color:var(--cream);border-bottom-color:var(--ice)}
.contact-list{display:grid;gap:12px}
.contact-list__item{display:grid;gap:3px}
.contact-list__key{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--ice)}
.contact-list__value{font-size:14.5px;color:rgba(214,235,247,.86);word-break:break-word}
.site-footer__bottom{position:relative;max-width:var(--shell);margin:0 auto;padding:16px var(--gutter) 26px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 26px;border-top:1px solid var(--line-dark);font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:rgba(214,235,247,.6)}
.site-footer__legal{margin:0}
.site-footer__year{color:var(--ice)}

.to-top{position:fixed;right:clamp(14px,3vw,32px);bottom:clamp(14px,3vw,28px);z-index:110;display:inline-flex;align-items:center;gap:8px;padding:10px 14px;background:var(--navy);color:var(--ice-soft);border:1px solid var(--ice);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s linear,background-color .2s var(--ease),color .2s var(--ease)}
.to-top[data-visible]{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--ice);color:var(--navy)}

[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease);transition-delay:var(--reveal-delay,0ms)}
[data-reveal].is-visible{opacity:1;transform:none}

@media (min-width:900px){
  .site-footer__inner{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr) minmax(0,1fr)}
}
@media (max-width:1300px){
  .site-header__hint{display:none}
}
@media (max-width:1080px){
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .site-header__inner{min-height:var(--header-h)}
  .site-nav{
    position:fixed;top:0;right:0;bottom:0;left:auto;z-index:118;
    width:min(88vw,420px);margin:0;padding:calc(var(--header-h) + 24px) var(--gutter) 40px;
    display:block;overflow-y:auto;
    background:var(--navy);color:var(--cream);
    box-shadow:-24px 0 60px rgba(7,18,41,.45);
    transform:translateX(104%);visibility:hidden;
    transition:transform .38s var(--ease),visibility .38s linear;
  }
  .site-header[data-open] .site-nav{transform:none;visibility:visible}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__item{border-bottom:1px solid var(--line-dark)}
  .site-nav__link{width:100%;padding:16px 4px;font-size:24px;color:var(--cream)}
  .site-nav__link::after{display:none}
  .site-nav__link:hover{background:transparent;color:var(--ice)}
  .site-nav__link[aria-current="page"]{color:var(--ice)}
  .site-nav__link[aria-current="page"]::before{color:var(--referee);opacity:1}
  .site-header[data-scrolled] .site-nav__link,
  .site-header[data-scrolled] .site-nav__link:hover{color:var(--cream);background:transparent}
  .site-header[data-scrolled] .site-nav__link[aria-current="page"]{color:var(--ice)}
  .site-header[data-open]{background:var(--navy);color:var(--cream);border-bottom-color:transparent;box-shadow:none}
  body.nav-open{overflow:hidden}
}
@media (max-width:520px){
  .footer-nav__list{grid-template-columns:minmax(0,1fr)}
  .site-footer__bottom{font-size:11.5px}
  .to-top{right:12px;bottom:12px;padding:9px 12px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  [data-reveal]{opacity:1;transform:none}
}