/* ============================================================
   半岛体综合 · 赛场数据舱 / site.css
   1 变量与重置  2 排版  3 页头  4 页脚  5 通用组件  6 响应式
   ============================================================ */

/* ---------- 1. 变量与重置 ---------- */
:root{
  --sea:#061726;
  --hull:#0C2437;
  --hull-deep:#081A2B;
  --ink:#131A21;
  --steel:#7E93A6;
  --cool:#EDF3F8;
  --orange:#FF6A1F;
  --cyan:#34E2D2;
  --amber:#FFC24B;
  --pine:#0F3A38;
  --paper:#F4F1EA;

  --line:rgba(126,147,166,.30);
  --line-strong:rgba(126,147,166,.55);
  --hair:rgba(126,147,166,.16);
  --dim:rgba(237,243,248,.74);
  --dim-2:rgba(237,243,248,.50);

  --font-display:"Archivo Narrow","Oswald","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-serif:Georgia,"Songti SC","Source Han Serif SC","Noto Serif SC","SimSun",serif;
  --font-body:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Courier New",monospace;

  --wrap:1280px;
  --gutter:clamp(16px,3vw,40px);
  --ease:cubic-bezier(.22,.7,.24,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  color:var(--cool);
  background-color:var(--sea);
  background-image:
    radial-gradient(1100px 560px at 88% -8%, rgba(52,226,210,.10), transparent 62%),
    radial-gradient(900px 520px at -6% 6%, rgba(255,106,31,.09), transparent 58%),
    linear-gradient(180deg,#071B2D 0%, #061726 42%, #061726 100%);
}
img,svg{max-width:100%;display:block;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit;text-decoration:none}
main{display:block}
#main-content{display:block}
[id]{scroll-margin-top:132px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* ---------- 2. 排版 ---------- */
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:600;line-height:1.22;letter-spacing:.005em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
.lede{font-size:clamp(16px,1.4vw,19px);line-height:1.8;color:var(--dim);max-width:62ch}
.muted{color:var(--dim-2)}
.mono{font-family:var(--font-mono);letter-spacing:.06em}
.rule{border:0;height:1px;background:var(--line);margin:0}
.stack>*+*{margin-top:clamp(12px,1.6vw,20px)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}

/* ---------- 3. 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--sea);
  border-bottom:1px solid var(--line);
}
.skip-link{
  position:absolute;
  left:16px;
  top:-70px;
  z-index:120;
  padding:10px 16px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  color:#0B1B29;
  background:var(--paper);
  border:1px solid var(--ink);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:8px}

.header-upper{
  overflow:hidden;
  max-height:170px;
  background:linear-gradient(180deg,rgba(12,36,55,.97),rgba(6,23,38,.97));
  border-bottom:1px solid var(--line);
  transition:max-height .34s var(--ease), opacity .22s ease;
}
.site-header[data-scrolled="true"] .header-upper{max-height:0;opacity:0;border-bottom-color:transparent}

.header-inner{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
  display:flex;
  align-items:center;
  gap:clamp(14px,2vw,28px);
}
.header-upper .header-inner{padding-block:13px;min-height:64px}

.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{position:relative;width:34px;height:34px;flex:0 0 auto;background:var(--ink);border:1px solid var(--line-strong);box-shadow:3px 3px 0 rgba(255,106,31,.35)}
.brand__mark::before{content:"";position:absolute;left:6px;right:6px;top:7px;height:8px;background:linear-gradient(90deg,var(--orange) 0 42%,var(--cyan) 42% 100%)}
.brand__mark::after{content:"";position:absolute;left:6px;right:6px;bottom:7px;height:3px;background-image:repeating-linear-gradient(90deg,var(--steel) 0 3px,transparent 3px 6px)}
.brand__text{display:flex;flex-direction:column;gap:1px}
.brand__name{font-family:var(--font-serif);font-size:20px;line-height:1.15;letter-spacing:.02em;color:var(--cool)}
.brand__line{font-family:var(--font-mono);font-size:10px;line-height:1.3;letter-spacing:.24em;color:var(--steel);text-transform:uppercase}

.header-upper__note{
  flex:1 1 auto;
  margin:0;
  padding-left:18px;
  border-left:1px solid var(--line);
  font-size:14px;
  line-height:1.5;
  color:var(--dim-2);
  min-width:0;
}

.utility-nav{display:flex;align-items:center;gap:6px;margin-left:auto;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em}
.utility-nav__link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 12px;
  border:1px solid var(--line);
  color:var(--dim);
  white-space:nowrap;
  transition:border-color .18s,color .18s,background .18s;
}
.utility-nav__link::before{content:"";width:6px;height:6px;background:var(--cyan);flex:0 0 auto}
.utility-nav__item:nth-child(2) .utility-nav__link::before{background:var(--orange)}
.utility-nav__link:hover{color:var(--cool);border-color:var(--cyan);background:rgba(52,226,210,.08)}

.header-lower{position:relative;background:var(--ink);border-top:1px solid var(--hair)}
.header-inner--nav{gap:10px;align-items:stretch}

.nav{flex:1 1 auto;min-width:0}
.nav__list{display:flex;align-items:stretch;overflow-x:auto;scrollbar-width:thin}
.nav__item{flex:0 0 auto}
.nav__link{
  display:block;
  padding:16px 18px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.1em;
  color:var(--dim-2);
  white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:color .18s,border-color .18s,background .18s;
}
.nav__link:hover{color:var(--cool);background:rgba(52,226,210,.07)}
.nav__link[aria-current="page"]{
  color:var(--paper);
  border-bottom-color:var(--orange);
  background:linear-gradient(180deg,transparent,rgba(255,106,31,.14));
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  align-self:center;
  margin-block:7px;
  padding:9px 12px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--dim);
  border:1px solid var(--line);
  cursor:pointer;
  transition:color .18s,border-color .18s;
}
.nav-toggle:hover{color:var(--cool);border-color:var(--cyan)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:10px}
.nav-toggle__bars::before,
.nav-toggle__bars::after{content:"";position:absolute;left:0;right:0;height:1px;background:currentColor;transition:transform .2s var(--ease)}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle__label{white-space:nowrap}
.site-header[data-open="true"] .nav-toggle{color:var(--orange);border-color:var(--orange)}
.site-header[data-open="true"] .nav-toggle__bars::before{transform:translateY(4.5px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle__bars::after{transform:translateY(-4.5px) rotate(-45deg)}

/* ---------- 4. 页脚 ---------- */
.site-footer{
  margin-top:clamp(56px,8vw,110px);
  background:var(--ink);
  border-top:1px solid var(--line-strong);
}
.footer-inner{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding:clamp(38px,5vw,64px) var(--gutter) 0;
  display:grid;
  gap:clamp(24px,3vw,44px);
  grid-template-columns:minmax(220px,1.3fr) repeat(3,minmax(108px,.72fr)) minmax(240px,1.4fr);
}
.footer-brand{display:flex;flex-direction:column;gap:14px}
.brand--footer{align-items:flex-start}
.brand--footer .brand__name{font-size:19px}
.footer-brand__closing{
  margin:0;
  padding-top:12px;
  font-family:var(--font-serif);
  font-size:17px;
  color:var(--dim);
  border-top:1px solid var(--hair);
}
.footer-col__title{
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:400;
  letter-spacing:.16em;
  color:var(--steel);
  text-transform:uppercase;
}
.footer-col__title::before{content:"";width:9px;height:2px;background:var(--orange);flex:0 0 auto}
.footer-col__list{display:flex;flex-direction:column;gap:4px}
.footer-col__link{
  display:inline-block;
  padding:4px 0;
  font-size:15px;
  color:var(--dim);
  transition:color .18s,transform .18s;
}
.footer-col__link:hover{color:var(--cyan);transform:translateX(3px)}

.footer-contact{
  position:relative;
  padding:18px 18px 16px;
  border:1px solid var(--line);
  background:rgba(12,36,55,.55);
}
.footer-contact::after{content:"";position:absolute;right:-1px;top:-1px;width:14px;height:14px;background:var(--orange)}
.footer-contact__title{
  margin-bottom:12px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:400;
  letter-spacing:.16em;
  color:var(--steel);
  text-transform:uppercase;
}
.footer-contact__row{display:flex;gap:10px;margin:0 0 8px;font-size:14px;line-height:1.6}
.footer-contact__row:last-child{margin-bottom:0}
.footer-contact__label{flex:0 0 42px;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--steel);padding-top:3px}
.footer-contact__value{color:var(--cool);word-break:break-all}

.footer-legal{
  width:100%;
  max-width:var(--wrap);
  margin:clamp(30px,4vw,46px) auto 0;
  padding:18px var(--gutter) 32px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--dim-2);
}
.footer-legal p{margin:0}
.footer-legal__icp{color:var(--steel)}

/* ---------- 5. 通用组件 ---------- */
/* 段落画布 */
.section{position:relative;padding-block:clamp(38px,5.5vw,76px)}
.section+.section{border-top:1px solid var(--hair)}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:10px 24px;margin-bottom:clamp(20px,3vw,34px)}
.section__kicker{font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;color:var(--orange);text-transform:uppercase}
.section__title{font-size:clamp(26px,3.4vw,44px)}
.section__note{margin:0 0 4px auto;max-width:54ch;font-size:15px;color:var(--dim-2)}

/* 栅格 */
.grid{display:grid;gap:clamp(16px,2vw,28px);grid-template-columns:repeat(var(--cols,12),minmax(0,1fr))}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}
.span-9{grid-column:span 9}
.span-12{grid-column:span 12}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:13px 20px 13px 22px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.12em;
  color:var(--cool);
  border:1px solid var(--line-strong);
  background:transparent;
  cursor:pointer;
  transition:background .18s,border-color .18s,color .18s,transform .18s;
}
.btn::after{content:"→";font-size:14px;line-height:1}
.btn:hover{border-color:var(--cyan);background:rgba(52,226,210,.1);transform:translateY(-2px)}
.btn--primary{background:var(--orange);border-color:var(--orange);color:#14100A;font-weight:600}
.btn--primary:hover{background:#ff8347;border-color:#ff8347;color:#14100A}
.btn--ghost{border-style:dashed}

/* 标签 */
.label{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--steel);
  border:1px solid var(--line-strong);
  background:rgba(6,23,38,.6);
  white-space:nowrap;
}
.label--orange{color:var(--orange);border-color:rgba(255,106,31,.55);background:rgba(255,106,31,.1)}
.label--cyan{color:var(--cyan);border-color:rgba(52,226,210,.5);background:rgba(52,226,210,.08)}
.label--amber{color:var(--amber);border-color:rgba(255,194,75,.5);background:rgba(255,194,75,.08)}
.label--paper{color:#0B1B29;background:var(--paper);border-color:var(--paper)}

/* 面包屑 */
.breadcrumb{padding-top:18px;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--dim-2)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__item::after{content:"/";margin-left:8px;color:var(--line-strong)}
.breadcrumb__item:last-child::after{content:""}
.breadcrumb__link:hover{color:var(--cyan)}
.breadcrumb__current{color:var(--cool)}

/* 面板（纸层错位） */
.panel{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,36,55,.94),rgba(7,23,38,.94));
  box-shadow:5px 5px 0 -1px rgba(6,23,38,.9),5px 5px 0 0 rgba(126,147,166,.3);
}
.panel--paper{background:var(--paper);color:#0B1B29;border-color:#0B1B29;box-shadow:5px 5px 0 -1px rgba(6,23,38,.9),5px 5px 0 0 rgba(255,106,31,.6)}
.panel__head{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 16px;margin-bottom:14px}
.panel__title{font-size:clamp(19px,2vw,24px)}
.panel__meta{margin-left:auto;font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--steel)}
.panel__body{font-size:15px;color:var(--dim)}
.panel--paper .panel__body{color:#1B2733}

/* 图片容器 */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(15,58,56,.6),rgba(6,23,38,.92));
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(126,147,166,.16) 1px,transparent 1px),
    linear-gradient(90deg,rgba(126,147,166,.16) 1px,transparent 1px);
  background-size:46px 46px;
}
.media-frame--21x9{aspect-ratio:21/9}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame--portrait{aspect-ratio:3/4}
.media-frame__img{width:100%;height:100%;object-fit:cover;display:block}
.media-frame__caption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:12px 14px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--dim);
  background:linear-gradient(180deg,transparent,rgba(6,23,38,.94));
}

/* 数字与指标 */
.numeral{
  display:inline-block;
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(40px,6vw,96px);
  line-height:.9;
  letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
  font-stretch:condensed;
  color:var(--cool);
}
.numeral--xl{font-size:clamp(56px,9vw,120px)}
.numeral--sm{font-size:clamp(26px,3vw,40px)}
.numeral--orange{color:var(--orange)}
.numeral--cyan{color:var(--cyan)}
.numeral--amber{color:var(--amber)}
.stat{display:flex;flex-direction:column;gap:5px;padding-left:14px;border-left:1px solid var(--line)}
.stat__label{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--steel);text-transform:uppercase}
.stat__value{font-family:var(--font-display);font-weight:700;font-size:clamp(24px,3vw,40px);line-height:1.05;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat__delta{font-family:var(--font-mono);font-size:12px;color:var(--cyan)}
.meter{position:relative;height:6px;background:rgba(126,147,166,.2);overflow:hidden}
.meter__fill{display:block;height:100%;width:var(--value,50%);background:linear-gradient(90deg,var(--cyan),var(--orange))}

/* 时间轴 */
.timeline{position:relative;padding-left:26px}
.timeline::before{
  content:"";
  position:absolute;
  left:5px;top:6px;bottom:6px;
  width:1px;
  background:linear-gradient(180deg,var(--line-strong),rgba(126,147,166,.06));
}
.timeline__item{position:relative;padding-bottom:clamp(18px,2.6vw,30px)}
.timeline__item::before{
  content:"";
  position:absolute;
  left:-26px;top:7px;
  width:11px;height:11px;
  background:var(--sea);
  border:1px solid var(--steel);
}
.timeline__item--current::before{border-color:var(--orange);background:var(--orange);box-shadow:0 0 0 4px rgba(255,106,31,.16)}
.timeline__label{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--steel);text-transform:uppercase}
.timeline__title{margin:4px 0 6px;font-size:19px}
.timeline__text{font-size:15px;color:var(--dim)}

/* 筛选 */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:12px 0;
  margin-bottom:clamp(18px,3vw,30px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.filter-bar__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--steel);text-transform:uppercase;margin-right:6px}
.filter-btn{
  padding:7px 13px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--dim);
  border:1px solid var(--line);
  background:transparent;
  cursor:pointer;
  transition:background .16s,border-color .16s,color .16s;
}
.filter-btn:hover{border-color:var(--cyan);color:var(--cool)}
.filter-btn.is-active,
.filter-btn[aria-pressed="true"]{background:var(--orange);border-color:var(--orange);color:#14100A;font-weight:600}
.filter-bar__meta{margin-left:auto;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--steel)}
.filter-empty{display:none;padding:28px 0;font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;color:var(--steel);text-align:center;border:1px dashed var(--line)}
.filter-empty.is-visible{display:block}
[data-filter-item]{transition:opacity .18s ease,transform .18s var(--ease)}
[data-filter-item].is-hiding{opacity:0;transform:translateY(8px)}
[data-filter-item][hidden]{display:none}

/* 显现 */
[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .44s ease,transform .44s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* 滚动轨 */
.scroll-rail{
  position:fixed;
  right:14px;
  top:50%;
  transform:translateY(-50%);
  z-index:70;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  pointer-events:none;
}
.scroll-rail__readout{font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;color:var(--steel);writing-mode:vertical-rl}
.scroll-rail__track{
  position:relative;
  width:4px;
  height:min(38vh,300px);
  background:rgba(126,147,166,.22);
}
.scroll-rail__track::after{
  content:"";
  position:absolute;
  left:8px;top:0;bottom:0;
  width:6px;
  background-image:repeating-linear-gradient(180deg,rgba(126,147,166,.55) 0 1px,transparent 1px 12px);
}
.scroll-rail__fill{
  position:absolute;
  left:0;top:0;
  width:100%;height:0;
  background:linear-gradient(180deg,var(--cyan),var(--orange));
  transition:height .12s linear;
}

/* 悬停时图片轻微推近 */
@media (prefers-reduced-motion: no-preference){
  .media-frame__img{transition:transform .5s var(--ease)}
  .media-frame:hover .media-frame__img{transform:scale(1.03)}
}

/* ---------- 6. 响应式与动效偏好 ---------- */
@media (max-width:1080px){
  .footer-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
  .header-upper__note{display:none}
  .span-3,.span-4,.span-5{grid-column:span 6}
  .span-7,.span-8,.span-9{grid-column:span 12}
}
@media (max-width:900px){
  .scroll-rail{display:none}
}
@media (max-width:880px){
  .nav-toggle{display:inline-flex}
  .nav{
    position:absolute;
    left:0;right:0;top:100%;
    display:none;
    max-height:72vh;
    overflow-y:auto;
    background:var(--ink);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    box-shadow:0 20px 44px rgba(0,0,0,.5);
  }
  .site-header[data-open="true"] .nav{display:block}
  .nav__list{flex-direction:column;overflow:visible}
  .nav__link{padding:15px var(--gutter);border-bottom:1px solid var(--hair);border-left:2px solid transparent}
  .nav__link[aria-current="page"]{border-left-color:var(--orange);border-bottom-color:var(--hair)}
}
@media (max-width:720px){
  body{font-size:16px}
  .utility-nav__link{font-size:11px;letter-spacing:.04em;padding:6px 9px}
  .brand__name{font-size:17px}
  .brand__line{font-size:10px;letter-spacing:.18em}
  .section__note{margin-left:0}
  .grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-9,.span-12{grid-column:span 4}
}
@media (max-width:600px){
  .footer-inner{grid-template-columns:minmax(0,1fr)}
  .footer-legal{flex-direction:column;align-items:flex-start}
}
@media (max-width:420px){
  .header-upper .header-inner{flex-wrap:wrap;row-gap:8px}
  .utility-nav{width:100%;margin-left:0}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  [data-reveal]{opacity:1;transform:none}
  .scroll-rail__fill{transition:none}
}