/* ===========================================================
   k1看台 · /assets/site.css
   reset / 变量 / 中文排版 / 页头 / 页脚 / 基础组件
   =========================================================== */

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
main{display:block}
[hidden]{display:none !important}

/* ---------- 变量 ---------- */
:root{
  --ink:#0B1F1A;
  --ink-2:#123028;
  --concrete:#2B302E;
  --limestone:#8F9895;
  --flood:#F2F6F2;
  --lime:#B8FF3C;
  --lime-deep:#6FBF1F;
  --amber:#FFB020;
  --amber-deep:#A85F00;
  --red:#FF5252;
  --paper:#E7EDE9;

  --line:rgba(143,152,149,.22);
  --line-strong:rgba(143,152,149,.42);
  --text-soft:#C6D2CD;
  --text-body:#DDE5E1;

  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --r-pill:999px;

  --font-display:"Helvetica Neue Condensed","Arial Narrow","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --wrap:1220px;
  --gutter:clamp(18px,4vw,52px);
  --header-h:76px;
}

/* ---------- 基础排版 ---------- */
body{
  background:var(--ink);
  color:var(--flood);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}

a{transition:color .2s ease,border-color .2s ease,background-color .2s ease}
strong{font-weight:600;color:var(--flood)}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  padding:12px 20px;border-radius:0 0 var(--r-sm) 0;
  background:var(--lime);color:var(--ink);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;
}
.skip-link:focus{position:fixed;left:16px;top:0}

/* ---------- 文字体系 ---------- */
.display-1{
  font-family:var(--font-display);font-weight:300;text-transform:uppercase;
  font-size:clamp(42px,9vw,124px);line-height:.94;letter-spacing:-.01em;
}
.display-2{
  font-family:var(--font-display);font-weight:300;text-transform:uppercase;
  font-size:clamp(28px,4.4vw,60px);line-height:1.04;letter-spacing:0;
}
.display-3{
  font-family:var(--font-display);font-weight:400;text-transform:uppercase;
  font-size:clamp(20px,2.4vw,30px);line-height:1.2;letter-spacing:.02em;
}
.eyebrow{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--limestone);
}
.num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;letter-spacing:.02em;
}
.lede{
  font-size:clamp(16px,1.6vw,19px);line-height:1.85;
  color:var(--text-body);max-width:36em;
}
.muted{color:var(--limestone)}
.tag{
  display:inline-block;font-family:var(--font-mono);font-size:11.5px;
  letter-spacing:.14em;text-transform:uppercase;color:var(--limestone);
}

/* ---------- 布局 ---------- */
.container{
  width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter);
}
.main-offset{padding-top:calc(var(--header-h) + clamp(28px,6vw,72px))}
.grid{display:grid;gap:clamp(16px,2.4vw,32px)}
.grid-12{grid-template-columns:repeat(12,1fr)}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-6{grid-column:span 6}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-12{grid-column:span 12}
.section{padding-block:clamp(40px,6vw,88px)}
.section-head{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 24px;
  margin-bottom:clamp(20px,3vw,40px);
}
.section-index{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.16em;
  color:var(--lime);
}
.rule{height:1px;border:0;background:var(--line);margin-block:clamp(24px,4vw,48px)}

/* ---------- 按钮与胶囊 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;letter-spacing:.06em;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:var(--lime-deep);color:var(--ink)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--flood)}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime)}

.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
  color:var(--limestone);
  transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s ease;
}
.pill:hover{color:var(--flood);border-color:var(--lime)}
.pill[aria-pressed="true"]{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.pill:active{transform:translateY(1px)}
.pill-row{display:flex;flex-wrap:wrap;gap:10px}
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding-block:clamp(12px,2vw,20px);
}

/* ---------- 比分条与进度 ---------- */
.score-row{
  display:grid;
  grid-template-columns:minmax(72px,108px) minmax(0,1fr) minmax(0,250px);
  gap:clamp(12px,2vw,28px);
  align-items:center;
  padding:clamp(16px,2vw,22px) clamp(16px,2.4vw,28px);
  background:var(--ink-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
}
.score-num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(30px,4vw,46px);font-weight:500;line-height:1;
  color:var(--lime);
}
.score-body{min-width:0}
.score-body-title{font-size:15.5px;color:var(--flood)}
.score-body-line{font-size:13px;color:var(--limestone);letter-spacing:.03em}
.score-note{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.06em;
  color:var(--limestone);
}
.track{height:4px;border-radius:var(--r-pill);background:rgba(143,152,149,.22);overflow:hidden}
.track-fill{
  display:block;height:100%;width:var(--v,0%);
  background:var(--lime);border-radius:inherit;
  transition:width .6s linear;
}
.track-amber .track-fill{background:var(--amber)}

/* ---------- 图片容器 ---------- */
.figure{margin:0}
.media{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  min-height:180px;
  background:
    radial-gradient(120% 90% at 18% 8%,rgba(184,255,60,.10),transparent 62%),
    linear-gradient(155deg,#123028 0%,#0B1F1A 55%,#2B302E 100%);
}
.media > img,
.media > video{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(11,31,26,.08),rgba(11,31,26,.42));
}
.media-wide{aspect-ratio:16/9}
.media-tall{aspect-ratio:3/4}
.media-square{aspect-ratio:1/1}
.media-caption{
  margin-top:10px;font-size:12.5px;letter-spacing:.05em;color:var(--limestone);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin-block:clamp(18px,3vw,32px)}
.breadcrumb ol{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:var(--limestone);
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:var(--line-strong)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb [aria-current="page"]{color:var(--flood)}

/* ---------- 长文与浅阅读底 ---------- */
.prose{max-width:36em;font-size:16px;line-height:1.85;color:var(--text-body)}
.prose h2,.prose h3{
  font-family:var(--font-display);font-weight:400;text-transform:uppercase;
  color:var(--flood);margin-top:1.8em;margin-bottom:.6em;letter-spacing:.02em;
}
.prose h2{font-size:clamp(22px,2.6vw,32px)}
.prose h3{font-size:clamp(18px,2vw,22px)}
.prose p + p{margin-top:1em}
.prose ul{list-style:disc;padding-left:1.2em;margin-block:1em}
.prose ol{list-style:decimal;padding-left:1.3em;margin-block:1em}
.prose li{margin-block:.4em}
.prose a{color:var(--lime);border-bottom:1px solid rgba(184,255,60,.4)}
.prose a:hover{color:var(--lime-deep);border-bottom-color:var(--lime-deep)}
.paper-zone{background:var(--paper);color:var(--ink-2)}
.paper-zone .prose,.paper-zone .lede{color:#123028}
.paper-zone .muted,.paper-zone .eyebrow,.paper-zone .media-caption{color:#4C5A55}
.paper-zone .prose h2,.paper-zone .prose h3{color:var(--ink)}
.paper-zone .prose a{color:var(--amber-deep);border-bottom-color:rgba(168,95,0,.4)}
.prose-light{max-width:36em}
.mark-amber{
  border-left:3px solid var(--amber);
  padding-left:clamp(14px,2vw,20px);
}
.paper-zone .mark-amber{border-left-color:var(--amber-deep)}

/* ---------- 显现动画 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}
@keyframes chip-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.is-in{animation:chip-in .32s ease both}

/* ===========================================================
   页头
   =========================================================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:linear-gradient(180deg,rgba(11,31,26,.86),rgba(11,31,26,0));
  border-bottom:1px solid transparent;
  transition:background-color .24s ease,border-color .24s ease,padding .24s ease;
}
.site-header[data-scrolled]{
  background:rgba(11,31,26,.97);
  border-bottom-color:var(--line);
}
.header-inner{
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:clamp(14px,1.8vw,24px) var(--gutter);
  display:grid;
  grid-template-columns:minmax(0,auto) minmax(0,1fr) minmax(0,auto);
  align-items:center;gap:clamp(14px,2vw,32px);
  transition:padding .24s ease;
}
.site-header[data-scrolled] .header-inner{padding-block:10px}

.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  display:grid;place-items:center;flex:0 0 auto;
  width:40px;height:40px;border-radius:12px;
  border:1px solid rgba(184,255,60,.5);
  background:rgba(184,255,60,.10);
  color:var(--lime);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.04em;
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{
  font-size:16px;font-weight:600;letter-spacing:.1em;line-height:1.3;
  color:var(--flood);white-space:nowrap;
}
.brand-desc{
  font-size:11.5px;letter-spacing:.14em;line-height:1.5;
  color:var(--limestone);white-space:nowrap;
}

.nav-toggle{
  display:none;align-items:center;gap:10px;order:3;
  padding:8px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  color:var(--flood);font-size:13px;letter-spacing:.08em;
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle-label{line-height:1}
.nav-toggle-bars{position:relative;display:block;width:22px;height:12px}
.nav-toggle-bars i{
  position:absolute;left:0;right:0;height:2px;border-radius:2px;
  background:currentColor;transition:transform .24s ease;
}
.nav-toggle-bars i:first-child{top:0}
.nav-toggle-bars i:last-child{bottom:0}
.site-header[data-open] .nav-toggle-bars i:first-child{transform:translateY(5px) rotate(45deg)}
.site-header[data-open] .nav-toggle-bars i:last-child{transform:translateY(-5px) rotate(-45deg)}

.site-nav{justify-self:center;min-width:0}
.nav-list{display:flex;align-items:center;gap:clamp(14px,2vw,30px)}
.nav-link{
  position:relative;display:inline-block;padding:6px 2px;
  font-size:14px;letter-spacing:.06em;color:var(--text-soft);
  transition:color .2s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  border-radius:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--flood)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--lime)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.status-chip{
  display:inline-flex;align-items:center;gap:8px;
  justify-self:end;
  padding:7px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,176,32,.5);
  background:rgba(255,176,32,.1);
  color:var(--amber);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  white-space:nowrap;
}
.status-dot{
  width:6px;height:6px;border-radius:50%;background:var(--amber);
  box-shadow:0 0 0 4px rgba(255,176,32,.16);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}

.header-progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:rgba(143,152,149,.16);
}
.header-progress-bar{
  display:block;height:100%;width:100%;
  background:var(--lime);
  transform:scaleX(0);transform-origin:left center;
}

/* ===========================================================
   页脚
   =========================================================== */
.site-footer{
  margin-top:clamp(48px,8vw,120px);
  background:var(--ink-2);
  border-top:1px solid var(--line);
  padding-block:clamp(38px,6vw,78px);
}
.footer-inner{
  width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter);
}
.footer-head{
  display:flex;flex-wrap:wrap;align-items:center;gap:20px 28px;
  padding-bottom:clamp(20px,3vw,34px);
}
.footer-brand{
  font-family:var(--font-display);font-weight:300;text-transform:uppercase;
  font-size:clamp(18px,2.4vw,28px);line-height:1.2;letter-spacing:.02em;
  color:var(--flood);max-width:22em;
}
.footer-scale{
  flex:1 1 140px;height:10px;opacity:.55;
  background-image:repeating-linear-gradient(90deg,var(--line-strong) 0 1px,transparent 1px 14px);
  background-size:14px 10px;background-repeat:repeat-x;background-position:0 50%;
}
.footer-cols{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));
  gap:clamp(20px,3vw,40px);
  padding-block:clamp(22px,3vw,34px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.footer-col{min-width:0}
.footer-col-title{
  font-family:var(--font-mono);font-size:12px;font-weight:400;
  letter-spacing:.18em;text-transform:uppercase;color:var(--limestone);
  margin-bottom:14px;
}
.footer-list li + li{margin-top:9px}
.footer-list a{
  font-size:14.5px;color:var(--text-soft);
}
.footer-list a:hover{color:var(--lime)}
.footer-notes li{
  font-size:14.5px;color:var(--text-soft);line-height:1.9;
}
.footer-contact{
  display:grid;gap:4px;padding-top:clamp(20px,3vw,32px);
}
.footer-contact-line{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.04em;
  color:var(--text-soft);line-height:1.95;
}
.footer-base{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 24px;
  margin-top:clamp(18px,2.4vw,28px);
}
.footer-legal{
  font-size:12.5px;letter-spacing:.05em;color:var(--limestone);
}

/* ===========================================================
   响应式
   =========================================================== */
@media (max-width:1023px){
  .grid-12{grid-template-columns:repeat(6,1fr)}
  .col-3,.col-4{grid-column:span 3}
  .col-6,.col-8,.col-9,.col-12{grid-column:span 6}
  .score-row{grid-template-columns:minmax(64px,92px) minmax(0,1fr);}
  .score-note{grid-column:1/-1;padding-top:6px;border-top:1px solid var(--line)}
  .brand-desc{display:none}
}

@media (max-width:899px){
  :root{--header-h:66px}
  .header-inner{
    display:flex;align-items:center;gap:12px;
    padding-block:12px;
  }
  .site-header[data-scrolled] .header-inner{padding-block:9px}
  .brand{flex:0 1 auto}
  .status-chip{margin-left:auto;font-size:11.5px;padding:6px 11px}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;
    background:rgba(18,48,40,.98);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:8px var(--gutter) 20px;
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
    justify-self:stretch;
  }
  .site-header[data-open] .site-nav{display:block}
  .site-header[data-open]{background:rgba(11,31,26,.99);border-bottom-color:var(--line)}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{
    display:block;padding:14px 2px;font-size:16px;
    border-bottom:1px solid var(--line);
  }
  .nav-link::after{display:none}
  .footer-head{flex-direction:column;align-items:flex-start}
  .footer-scale{width:100%;flex:0 0 auto}
}

@media (max-width:639px){
  body{font-size:15.5px}
  .grid-12{grid-template-columns:1fr}
  .col-3,.col-4,.col-6,.col-8,.col-9,.col-12{grid-column:1/-1}
  .score-row{grid-template-columns:1fr;gap:10px}
  .status-chip-text{font-size:11px}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:12px}
  .brand-name{font-size:15px}
  .footer-cols{grid-template-columns:1fr}
  .media{border-radius:var(--r-md);min-height:150px}
}

/* ===========================================================
   可访问性：减弱动效
   =========================================================== */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1 !important;transform:none !important}
  .header-progress-bar{transition:none}
}