/* ==========================================================================
   安博体育主站 · 共享样式表 /assets/site.css
   视觉基调：深夜战术室 —— 球场深绿 × 电竞夜蓝 × 裁判黄
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body,h1,h2,h3,h4,h5,h6,p,ol,ul,li,figure,figcaption,blockquote,dl,dt,dd,table,th,td{margin:0;padding:0}
ol,ul{list-style:none}
table{border-collapse:collapse;border-spacing:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit;background:none;border:0}
button{cursor:pointer}
img,svg,video{display:block;max-width:100%;height:auto}
input[type="search"]::-webkit-search-decoration{-webkit-appearance:none}

/* ---------- 2. 变量 ---------- */
:root{
  --green-900:#0A2A1E;
  --green-700:#164734;
  --night:#0B1B33;
  --night-600:#17406E;
  --yellow:#F2D024;
  --orange:#FF7A2B;
  --white:#F5FAFF;
  --paper:#EDF1EE;
  --ink:#111A18;
  --mist:#93A9A0;

  --font-sans:"Noto Sans SC","Source Han Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Consolas,"Noto Sans Mono",monospace;

  --rule:3px;
  --shell:1440px;
  --header-h:76px;

  --dur-fast:120ms;
  --dur-mid:220ms;
  --dur-slow:340ms;
  --ease:cubic-bezier(.2,.7,.25,1);
}

/* ---------- 3. 基准排版 ---------- */
body{
  background:var(--green-900);
  color:var(--white);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4{font-weight:900;line-height:1.15;letter-spacing:-.01em}
strong{font-weight:900}
::selection{background:var(--yellow);color:var(--green-900)}
:focus-visible{outline:3px solid var(--yellow);outline-offset:3px}
.section--paper :focus-visible{outline-color:var(--night-600)}

/* ---------- 4. 布局容器与网格 ---------- */
.container,.header-shell,.footer-shell{width:100%;max-width:var(--shell);margin:0 auto;padding-left:clamp(16px,4vw,40px);padding-right:clamp(16px,4vw,40px)}
.page-top{padding-top:calc(var(--header-h) + 28px)}
.section{position:relative;padding:clamp(56px,9vw,112px) 0}
.section--tight{padding:clamp(32px,5vw,64px) 0}
.section--night{background:var(--night)}
.section--paper{background:var(--paper);color:var(--ink)}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:clamp(24px,3vw,40px)}
.section__rule{height:var(--rule);background:var(--yellow);margin-bottom:clamp(20px,3vw,32px)}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2.4vw,32px)}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-6{grid-column:span 6}
.span-8{grid-column:span 8}
.span-12{grid-column:span 12}

/* ---------- 5. 文字元件 ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;color:var(--yellow)}
.eyebrow::before{content:"";width:24px;height:var(--rule);background:currentColor;flex:0 0 auto}
.h-display{font-size:clamp(48px,9vw,144px);font-weight:900;line-height:.92;letter-spacing:-.03em}
.h-section{display:inline-block;font-size:clamp(28px,4.4vw,64px);font-weight:900;line-height:1.04;padding-bottom:12px;border-bottom:4px solid var(--yellow)}
.lead{font-size:clamp(16px,1.3vw,20px);line-height:1.75;color:rgba(245,250,255,.82)}
.section--paper .lead{color:rgba(17,26,24,.78)}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:-.01em}
.chapter-no{font-family:var(--font-mono);font-size:14px;letter-spacing:.2em;color:var(--yellow)}
.annotation{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--mist);writing-mode:vertical-rl;text-orientation:mixed}
.section--paper .annotation{color:#5E6E68}
.prose{max-width:68ch;font-size:17px;line-height:1.8}
.prose p+p{margin-top:1.2em}
.prose strong{box-shadow:inset 0 -.5em 0 rgba(242,208,36,.4)}

/* ---------- 6. 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:12px 22px;border:var(--rule) solid currentColor;border-radius:0;background:transparent;font-size:15px;font-weight:700;line-height:1;white-space:nowrap;transition:transform var(--dur-fast) var(--ease),background-color var(--dur-fast) linear,color var(--dur-fast) linear,box-shadow var(--dur-fast) linear}
.btn--accent{background:var(--yellow);border-color:var(--yellow);color:var(--green-900);box-shadow:4px 4px 0 rgba(11,27,51,.9)}
.btn--accent:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 rgba(11,27,51,.9)}
.btn--ghost{color:var(--white);border-color:var(--green-700)}
.btn--ghost:hover{border-color:var(--yellow);color:var(--yellow)}
.section--paper .btn--ghost{color:var(--ink);border-color:rgba(17,26,24,.45)}
.btn--sm{padding:8px 14px;font-size:13px}

/* ---------- 7. 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;gap:10px;padding:18px 0;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--mist)}
.breadcrumb__item{display:inline-flex;align-items:center;gap:10px}
.breadcrumb__item+.breadcrumb__item::before{content:"/";color:var(--green-700)}
.breadcrumb__link:hover{color:var(--yellow)}
.breadcrumb__link[aria-current="page"]{color:var(--white)}

/* ---------- 8. 数据表与标签 ---------- */
.data-table{width:100%;font-size:15px;font-variant-numeric:tabular-nums}
.data-table caption{text-align:left;font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--mist);padding-bottom:10px}
.data-table th,.data-table td{padding:12px 14px;text-align:left;border-bottom:1px dashed rgba(147,169,160,.35)}
.data-table thead th{background:var(--night);color:var(--yellow);font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;border-bottom:var(--rule) solid var(--yellow)}
.data-table tbody tr:hover{background:rgba(23,64,110,.45)}
.section--paper .data-table thead th{background:var(--night);color:var(--yellow)}
.section--paper .data-table th,.section--paper .data-table td{border-bottom-color:rgba(17,26,24,.18)}
.section--paper .data-table tbody tr:hover{background:rgba(23,64,110,.1)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:3px 8px;border:1px solid var(--mist);font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--mist)}
.tag--penalty{border-color:var(--yellow);color:var(--yellow)}
.tag--transfer{border-color:var(--orange);color:var(--orange)}

/* ---------- 9. 时间轴与章节 ---------- */
.timeline{display:flex;flex-direction:column;gap:18px;padding-left:20px;border-left:var(--rule) solid var(--green-700)}
.timeline__node{position:relative;font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;color:var(--mist);transition:color var(--dur-mid) linear}
.timeline__node::before{content:"";position:absolute;left:-27px;top:7px;width:11px;height:11px;background:var(--green-900);border:2px solid var(--green-700);transition:transform var(--dur-mid) var(--ease),background-color var(--dur-mid) linear,border-color var(--dur-mid) linear}
.timeline__node[data-active="true"]{color:var(--yellow)}
.timeline__node[data-active="true"]::before{background:var(--yellow);border-color:var(--yellow);transform:scale(1.3)}
.has-js [data-reveal]{opacity:0;transform:translateY(18px);transition:opacity var(--dur-slow) linear,transform var(--dur-slow) var(--ease)}
[data-reveal="in"]{opacity:1;transform:none}
[data-chapter]{position:relative}

/* ---------- 10. 图片容器与效果层 ---------- */
.media-frame{position:relative;border:var(--rule) solid var(--night-600);background:var(--night)}
.media-frame__inner{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(180deg,var(--night) 0%,var(--green-900) 100%)}
.media-frame__inner img{width:100%;height:100%;object-fit:cover}
.media-frame__inner::after{content:"";position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(245,250,255,.06) 0 1px,transparent 1px 4px)}
.media-frame--wide .media-frame__inner{aspect-ratio:21/9}
.media-frame--tall .media-frame__inner{aspect-ratio:3/4}
.media-frame__caption{padding:10px 12px;border-top:1px dashed rgba(147,169,160,.5);font-family:var(--font-mono);font-size:12px;color:var(--mist)}
.scanlines{position:relative}
.scanlines::after{content:"";position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(245,250,255,.05) 0 1px,transparent 1px 5px);animation:scan-drift 40s linear infinite}
.flash-white{position:fixed;inset:0;z-index:90;pointer-events:none;background:var(--white);opacity:0}
.flash-white[data-flash="true"]{animation:flash-cold 120ms linear 1}
@keyframes scan-drift{from{background-position-y:0}to{background-position-y:240px}}
@keyframes flash-cold{0%{opacity:0}40%{opacity:.85}100%{opacity:0}}

/* ---------- 11. 头部 ---------- */
.skip-link{position:absolute;top:-120px;left:16px;z-index:120;padding:10px 18px;background:var(--yellow);color:var(--green-900);font-weight:700;transition:top var(--dur-mid) var(--ease)}
.skip-link:focus{top:10px}
.site-header{position:fixed;top:0;left:0;right:0;z-index:50;background:transparent;border-bottom:1px solid transparent;transition:background-color var(--dur-mid) linear,border-color var(--dur-mid) linear}
.site-header[data-scrolled="true"]{background:var(--night);border-bottom-color:rgba(242,208,36,.38)}
.read-progress{height:3px;background:rgba(23,64,110,.5);overflow:hidden}
.read-progress__bar{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--night-600) 0%,var(--yellow) 100%);transition:width 90ms linear}
.header-shell{position:relative;z-index:2;display:flex;align-items:center;gap:clamp(12px,2vw,26px);min-height:var(--header-h)}

.nav-toggle{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;padding:10px 14px;border:var(--rule) solid var(--green-700);color:var(--white);font-size:13px;font-weight:700;letter-spacing:.06em;transition:background-color var(--dur-fast) linear,color var(--dur-fast) linear,border-color var(--dur-fast) linear}
.nav-toggle:hover{border-color:var(--yellow);color:var(--yellow)}
.nav-toggle[aria-expanded="true"]{background:var(--yellow);border-color:var(--yellow);color:var(--green-900)}
.nav-toggle__grid{display:grid;grid-template-columns:repeat(2,7px);grid-template-rows:repeat(2,7px);gap:3px}
.nav-toggle__grid i{display:block;background:currentColor}
.nav-toggle__text{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em}

.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{display:grid;place-items:center;width:40px;height:40px;background:var(--yellow);color:var(--green-900);font-size:20px;font-weight:900;border:var(--rule) solid var(--yellow)}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-size:17px;font-weight:900;color:var(--white)}
.brand__tagline{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--yellow)}

.site-nav{position:fixed;top:0;left:0;bottom:0;z-index:60;width:min(92vw,380px);display:flex;flex-direction:column;gap:18px;padding:calc(var(--header-h) + 12px) 20px 44px;background:var(--night);border-right:var(--rule) solid var(--yellow);overflow-y:auto;transform:translateX(-104%);visibility:hidden;transition:transform var(--dur-slow) var(--ease),visibility var(--dur-slow) linear}
.site-nav[data-open="true"]{transform:translateX(0);visibility:visible}
.site-nav__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:var(--rule) solid var(--green-700)}
.site-nav__title{font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;color:var(--yellow)}
.site-nav__close{padding:6px 12px;border:1px solid var(--green-700);font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--white);transition:border-color var(--dur-fast) linear,color var(--dur-fast) linear}
.site-nav__close:hover{border-color:var(--yellow);color:var(--yellow)}
.site-nav__list{display:flex;flex-direction:column;border-top:1px solid rgba(147,169,160,.35)}
.site-nav__item{border-bottom:1px solid rgba(147,169,160,.35)}
.site-nav__item[data-hidden="true"]{display:none}
.site-nav__link{display:flex;align-items:baseline;gap:12px;padding:14px 4px;font-size:17px;font-weight:700;color:var(--white);transition:color var(--dur-fast) linear,padding-left var(--dur-fast) linear,box-shadow var(--dur-fast) linear}
.site-nav__link:hover{color:var(--yellow)}
.site-nav__link[aria-current="page"]{color:var(--yellow);padding-left:14px;box-shadow:inset 6px 0 0 var(--yellow)}
.site-nav__no{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--yellow)}
.site-nav__tools{display:flex;flex-direction:column;gap:18px;padding-top:6px}

.season-switch{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.season-switch__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--mist)}
.season-switch__btn{padding:6px 12px;border:1px solid var(--green-700);font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--mist);transition:background-color var(--dur-fast) linear,color var(--dur-fast) linear,border-color var(--dur-fast) linear}
.season-switch__btn:hover{border-color:var(--yellow);color:var(--yellow)}
.season-switch__btn[aria-pressed="true"]{background:var(--yellow);border-color:var(--yellow);color:var(--green-900);font-weight:700}

.drawer-search{display:flex;flex-direction:column;gap:8px}
.drawer-search__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--yellow)}
.drawer-search__input{width:100%;padding:10px 12px;background:var(--green-900);border:1px solid var(--green-700);color:var(--white);font-family:var(--font-mono);font-size:13px}
.drawer-search__input::placeholder{color:var(--mist)}
.drawer-search__input:focus{border-color:var(--yellow)}

.nav-scrim{position:fixed;inset:0;z-index:1;background:rgba(11,27,51,.78);opacity:0;visibility:hidden;transition:opacity var(--dur-mid) linear,visibility var(--dur-mid) linear}
.nav-scrim[data-open="true"]{opacity:1;visibility:visible}

/* ---------- 12. 页脚 ---------- */
.site-footer{position:relative;background:var(--green-900);color:var(--white);border-top:var(--rule) solid var(--yellow)}
.footer-shell{padding-top:clamp(44px,6vw,84px);padding-bottom:32px}
.footer-brand{padding-bottom:clamp(24px,3vw,40px)}
.footer-brand__name{font-size:clamp(22px,3vw,34px);font-weight:900;line-height:1.2}
.footer-brand__line{margin-top:10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--mist)}
.footer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(20px,3vw,40px);padding-bottom:clamp(26px,4vw,44px);border-bottom:1px dashed rgba(147,169,160,.35)}
.footer-col__title{margin-bottom:14px;font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;color:var(--yellow)}
.footer-col__list{display:flex;flex-direction:column;gap:10px}
.footer-link{display:inline-block;padding-left:0;border-left:var(--rule) solid transparent;font-size:15px;color:rgba(245,250,255,.82);transition:color var(--dur-fast) linear,padding-left var(--dur-fast) linear,border-color var(--dur-fast) linear}
.footer-link:hover{color:var(--yellow);padding-left:12px;border-left-color:var(--yellow)}
.footer-contact{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;padding:clamp(24px,3vw,36px) 0;border-bottom:1px dashed rgba(147,169,160,.35)}
.footer-contact__label{display:block;margin-bottom:6px;font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--mist)}
.footer-contact__value{font-size:15px;font-weight:700;color:var(--white);word-break:break-word}
.footer-note{max-width:640px;margin-top:16px;font-size:13px;line-height:1.7;color:var(--mist)}
.footer-meta{display:flex;flex-wrap:wrap;gap:10px 22px;padding-top:24px;font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--mist)}
.footer-meta__item{display:inline-flex;align-items:center;gap:10px}
.footer-meta__item+.footer-meta__item::before{content:"";width:14px;height:1px;background:currentColor;opacity:.6}

/* ---------- 13. 断点 ---------- */
@media (max-width:1023px){
  .span-3,.span-4{grid-column:span 6}
  .span-8{grid-column:span 12}
}
@media (max-width:640px){
  :root{--header-h:64px}
  .span-3,.span-4,.span-6{grid-column:span 12}
  .nav-toggle__text{display:none}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .h-display{font-size:clamp(40px,15vw,72px)}
}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr 1fr}
}
@media (min-width:1024px){
  .site-nav{position:static;width:auto;height:auto;margin-left:auto;padding:0;gap:clamp(6px,1.4vw,18px);flex-direction:row;align-items:center;background:none;border:0;overflow:visible;transform:none;visibility:visible}
  .site-nav__head,.site-nav__tools{display:none}
  .site-nav__list{flex-direction:row;align-items:center;gap:clamp(6px,1.2vw,16px);border-top:0}
  .site-nav__item{border-bottom:0}
  .site-nav__link{position:relative;padding:10px 4px;font-size:15px;color:rgba(245,250,255,.86)}
  .site-nav__link::after{content:"";position:absolute;left:4px;right:4px;bottom:0;height:var(--rule);background:var(--yellow);transform:scaleX(0);transform-origin:left;transition:transform var(--dur-mid) var(--ease)}
  .site-nav__link:hover::after,.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}
  .site-nav__link[aria-current="page"]{color:var(--white);padding-left:4px;box-shadow:none}
  .nav-toggle{display:none}
  .nav-scrim{display:none}
  .header-cta{margin-left:clamp(8px,1.4vw,22px)}
}
@media (max-width:420px){
  .brand__tagline{display:none}
}

/* ---------- 14. 动效降级 ---------- */
@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],.has-js [data-reveal]{opacity:1;transform:none}
  .scanlines::after{animation:none}
}