/* ============================================================
   金年会电子导航 V4 · 共享站点套件
   赛场夜战 × 数据指挥台 / 深墨绿 · 电光金 · 荧光青
   ============================================================ */

:root{
  --ink:#0B2B24;
  --ink-night:#071C18;
  --ink-soft:#12463A;
  --gold:#F2C94C;
  --gold-soft:#FFD166;
  --neon:#37D9C4;
  --alert:#FF5A3C;
  --paper:#F4E9D2;
  --brown:#1A1410;
  --mist:#E9F1EC;
  --glass:rgba(24,76,63,.62);

  --line:rgba(233,241,236,.14);
  --line-soft:rgba(233,241,236,.08);
  --line-gold:rgba(242,201,76,.26);

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

  --gutter:clamp(18px,4vw,44px);
  --maxw:1200px;

  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:24px;
  --radius-xl:32px;

  --shadow-soft:0 18px 44px rgba(0,0,0,.34);
  --shadow-gold:0 14px 30px rgba(242,201,76,.22);
  --ease:cubic-bezier(.22,.7,.2,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100%;
  color:var(--mist);
  background-color:var(--ink);
  background-image:
    linear-gradient(rgba(233,241,236,.032) 1px,transparent 1px),
    linear-gradient(90deg,rgba(233,241,236,.032) 1px,transparent 1px),
    radial-gradient(1200px 620px at 10% -10%,rgba(55,217,196,.18),transparent 62%),
    radial-gradient(980px 520px at 92% 2%,rgba(242,201,76,.13),transparent 64%),
    linear-gradient(180deg,#0B2B24 0%,#09231D 52%,#071C18 100%);
  background-size:64px 64px,64px 64px,auto,auto,auto;
  background-repeat:repeat,repeat,no-repeat,no-repeat,no-repeat;
  font-family:var(--font-display);
  font-size:16px;
  font-weight:400;
  line-height:1.7;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:900;line-height:1.14;letter-spacing:-.02em;color:var(--mist)}
h1{font-size:clamp(30px,4.4vw,54px)}
h2{font-size:clamp(24px,3vw,36px)}
h3{font-size:clamp(18px,2vw,22px)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--neon);text-decoration:none}
a:hover{color:var(--gold)}
img,svg,picture,video{max-width:100%;display:block}
button{font:inherit;color:inherit}
strong{font-weight:800}
::selection{background:var(--gold);color:var(--brown)}
:where(a,button,[tabindex],input,select,textarea):focus-visible{
  outline:3px solid var(--neon);
  outline-offset:3px;
  border-radius:6px;
}
:where(#main-content){scroll-margin-top:130px}

/* ---------- 通用排版 ---------- */
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.24em;text-transform:uppercase;color:var(--neon);
}
.eyebrow::before{
  content:"";width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold),var(--neon));
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-family:var(--font-mono);font-size:11px;line-height:1.6;
  letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold);background:rgba(242,201,76,.1);border:1px solid var(--line-gold);
}
.tag--neon{color:var(--neon);background:rgba(55,217,196,.1);border-color:rgba(55,217,196,.42)}
.tag--alert{color:#FFD9D1;background:rgba(255,90,60,.18);border-color:rgba(255,90,60,.5)}
.lede{font-size:clamp(16px,1.5vw,18px);line-height:1.8;color:rgba(233,241,236,.8);max-width:68ch}
.text-gold{color:var(--gold)}

/* ---------- 布局骨架 ---------- */
.container{
  width:100%;
  max-width:calc(var(--maxw) + 2 * var(--gutter));
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(48px,7vw,96px)}
.section--tight{padding-block:clamp(26px,4vw,48px)}
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,7fr) minmax(0,3fr);align-items:start}
.stack > * + *{margin-top:clamp(14px,1.8vw,24px)}

/* ---------- 材质层 ---------- */
.panel{
  position:relative;
  background:linear-gradient(158deg,rgba(24,76,63,.74),rgba(7,28,24,.66));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow-soft);
  padding:clamp(18px,2.4vw,30px);
}
.paper{
  background:var(--paper);
  color:var(--brown);
  border:1px solid rgba(26,20,16,.14);
  border-radius:var(--radius-lg);
  padding:clamp(18px,2.4vw,30px);
  box-shadow:0 20px 40px rgba(0,0,0,.3);
}
.paper h2,.paper h3,.paper h4{color:var(--brown)}
.paper a{color:#8A3B16;text-decoration:underline;text-underline-offset:3px}
.paper a:hover{color:var(--brown)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:12px 22px;border-radius:999px;border:1px solid transparent;
  font-family:var(--font-display);font-size:14px;font-weight:800;letter-spacing:.04em;
  text-decoration:none;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn--primary{
  background:linear-gradient(135deg,var(--gold),var(--gold-soft));
  color:#08150F;box-shadow:var(--shadow-gold);border-color:rgba(255,255,255,.18);
}
.btn--primary:hover{transform:translateY(-2px);color:#08150F;box-shadow:0 18px 34px rgba(242,201,76,.32)}
.btn--ghost{
  border-color:rgba(55,217,196,.42);color:#9CF1E4;background:rgba(55,217,196,.08);
}
.btn--ghost:hover{background:rgba(55,217,196,.16);color:#C9FFF7;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(233,241,236,.55);margin-bottom:clamp(14px,2vw,22px);
}
.crumbs li{display:inline-flex;align-items:center;gap:8px}
.crumbs li + li::before{content:"/";color:rgba(233,241,236,.28)}
.crumbs a{color:var(--neon)}
.crumbs a:hover{color:var(--gold)}
.crumbs [aria-current="page"]{color:rgba(233,241,236,.85)}

/* ---------- 图片容器基础规则 ---------- */
.media-frame{
  position:relative;overflow:hidden;isolation:isolate;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:
    radial-gradient(120% 90% at 18% 0%,rgba(55,217,196,.26),transparent 62%),
    radial-gradient(90% 80% at 92% 100%,rgba(242,201,76,.18),transparent 66%),
    linear-gradient(160deg,#10382F,#071C18 72%);
}
.media-frame::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(233,241,236,.065) 0 1px,transparent 1px 46px),
    repeating-linear-gradient(90deg,rgba(233,241,236,.065) 0 1px,transparent 1px 46px);
  opacity:.75;
}
.media-frame > img,
.media-frame > picture,
.media-frame > picture > img{
  position:relative;z-index:1;
  display:block;width:100%;height:100%;object-fit:cover;
}
.media-frame--video{aspect-ratio:16/9}
.media-frame--photo{aspect-ratio:4/3}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--fill{height:100%;min-height:220px}

/* ---------- 滚动显现 ---------- */
[data-reveal]{
  transition:opacity .55s ease,transform .6s var(--ease);
  will-change:opacity,transform;
}
[data-reveal].is-hidden{opacity:0;transform:translateY(18px)}

/* ============================================================
   页头
   ============================================================ */
.skip-link{
  position:fixed;top:0;left:0;z-index:300;
  padding:12px 20px;border-radius:0 0 14px 0;
  background:var(--gold);color:#08150F;font-weight:800;font-size:14px;
  text-decoration:none;
  transform:translateY(-140%);
  transition:transform .2s ease;
}
.skip-link:focus-visible{transform:none;outline:none;box-shadow:0 0 0 3px var(--neon)}

.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(7,28,24,.97),rgba(11,43,36,.9));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-gold);
}

/* 比分光带 */
.rail{
  background:linear-gradient(90deg,#071C18,#0F3A31 38%,#071C18);
  border-bottom:1px solid rgba(55,217,196,.16);
}
.rail-inner{
  display:flex;align-items:center;gap:clamp(14px,3vw,30px);
  min-height:34px;
  overflow-x:auto;scrollbar-width:none;
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;
  color:rgba(233,241,236,.62);white-space:nowrap;
}
.rail-inner::-webkit-scrollbar{display:none}
.rail-item{display:inline-flex;align-items:center;gap:8px;flex:0 0 auto}
.rail-item--live{color:var(--neon)}
.rail-item--warn{color:var(--gold)}
.rail-item--calm{color:rgba(233,241,236,.5)}
.rail-dot{
  width:7px;height:7px;border-radius:50%;flex:0 0 auto;
  background:var(--neon);box-shadow:0 0 10px rgba(55,217,196,.9);
  animation:railPulse 2.4s ease-in-out infinite;
}
.rail-ticks{
  flex:1 1 auto;min-width:60px;height:8px;align-self:center;
  background-image:repeating-linear-gradient(90deg,rgba(242,201,76,.5) 0 1px,transparent 1px 10px);
}
@keyframes railPulse{0%,100%{opacity:1}50%{opacity:.35}}

/* 主导航行 */
.header-inner{
  display:flex;align-items:center;gap:clamp(12px,2vw,26px);
  max-width:calc(var(--maxw) + 2 * var(--gutter));
  margin-inline:auto;
  padding-block:11px;
  padding-inline:var(--gutter);
}
.brand{
  margin-right:auto;
  display:inline-flex;align-items:center;gap:12px;
  color:var(--mist);text-decoration:none;
}
.brand:hover{color:var(--mist)}
.brand-mark{
  position:relative;flex:0 0 auto;
  width:40px;height:40px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,#164E41,#071C18);
  border:1px solid var(--line-gold);
  box-shadow:inset 0 0 20px rgba(55,217,196,.2);
}
.brand-mark-core{
  width:13px;height:13px;border-radius:3px;
  transform:rotate(45deg);
  background:linear-gradient(135deg,var(--gold),var(--gold-soft));
  box-shadow:0 0 16px rgba(242,201,76,.75);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-name{font-size:17px;font-weight:900;letter-spacing:.03em}
.brand-version{
  font-family:var(--font-mono);font-size:10px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:rgba(55,217,196,.92);
}

/* 导航链接 */
.site-nav{display:flex;align-items:center;gap:clamp(4px,1vw,12px)}
.nav-list{display:flex;align-items:center;gap:clamp(2px,.8vw,8px)}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:9px 11px;border-radius:10px;
  font-size:13.5px;font-weight:700;letter-spacing:.05em;
  color:rgba(233,241,236,.78);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--gold);background:rgba(242,201,76,.09)}
.nav-link::after{
  content:"";position:absolute;left:11px;right:11px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold),var(--neon));
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .24s var(--ease);
}
.nav-link:hover::after{transform:scaleX(.6)}
.nav-link[aria-current="page"]{color:var(--gold);background:rgba(242,201,76,.1)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-cta{flex:0 0 auto;padding:10px 18px;font-size:13px;margin-left:6px}

/* 汉堡按钮 */
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:46px;height:46px;flex:0 0 auto;
  border-radius:13px;cursor:pointer;
  border:1px solid rgba(55,217,196,.38);
  background:rgba(55,217,196,.1);
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(55,217,196,.2);border-color:rgba(55,217,196,.6)}
.nav-toggle-bars{display:grid;gap:5px;width:20px}
.nav-toggle-bars span{
  display:block;height:2px;border-radius:2px;background:var(--neon);
  transition:transform .26s var(--ease),opacity .2s ease,background .2s ease;
}
.site-header[data-open] .nav-toggle{background:rgba(242,201,76,.16);border-color:var(--line-gold)}
.site-header[data-open] .nav-toggle-bars span{background:var(--gold)}
.site-header[data-open] .nav-toggle-bars span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header[data-open] .nav-toggle-bars span:nth-child(2){opacity:0;transform:scaleX(.4)}
.site-header[data-open] .nav-toggle-bars span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 阅读进度线 */
.header-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--neon),var(--gold) 62%,var(--alert));
  will-change:transform;
  pointer-events:none;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,120px);
  background:linear-gradient(180deg,rgba(7,28,24,.45),#071C18 26%);
  border-top:1px solid var(--line-gold);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:5px;
  background-image:repeating-linear-gradient(90deg,var(--gold) 0 6px,transparent 6px 18px);
  opacity:.7;pointer-events:none;
}
.footer-inner{
  display:grid;
  grid-template-columns:1.5fr .85fr 1fr;
  gap:clamp(24px,4vw,52px);
  padding-block:clamp(38px,6vw,68px);
  align-items:start;
}
.footer-brandline{
  font-size:clamp(16px,1.7vw,19px);font-weight:800;line-height:1.5;
  letter-spacing:-.01em;color:var(--mist);
}
.footer-note{
  margin-top:10px;font-size:13.5px;line-height:1.75;
  color:rgba(233,241,236,.62);max-width:40ch;
}
.footer-stamp{
  margin-top:18px;
  font-family:var(--font-mono);font-size:10.5px;font-weight:600;
  letter-spacing:.34em;text-transform:uppercase;color:rgba(55,217,196,.6);
}
.footer-nav{display:flex;flex-direction:column;gap:2px}
.footer-nav a{
  display:inline-block;padding:7px 0;
  font-size:14px;font-weight:700;letter-spacing:.04em;
  color:rgba(233,241,236,.8);
  border-bottom:1px solid transparent;
  transition:color .2s ease,border-color .2s ease,padding-left .2s ease;
}
.footer-nav a:hover{color:var(--gold);border-bottom-color:var(--line-gold);padding-left:5px}
.footer-label{
  font-family:var(--font-mono);font-size:10.5px;font-weight:600;
  letter-spacing:.26em;text-transform:uppercase;color:var(--neon);
  margin-bottom:12px;
}
.footer-mono{
  font-family:var(--font-mono);font-size:13.5px;font-variant-numeric:tabular-nums;
  color:var(--gold);letter-spacing:.02em;margin-bottom:6px;
  word-break:break-all;
}
.footer-small{font-size:12.5px;line-height:1.7;color:rgba(233,241,236,.55);margin-bottom:4px}
.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;
  padding-block:18px 26px;
  border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;
  color:rgba(233,241,236,.48);
}
.footer-legal p{margin:0}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1024px){
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;left:0;right:0;top:calc(100% + 1px);
    display:flex;flex-direction:column;align-items:stretch;gap:2px;
    padding:14px var(--gutter) 22px;
    background:linear-gradient(180deg,#0B2B24,#071C18);
    border-bottom:1px solid var(--line-gold);
    box-shadow:0 26px 44px rgba(0,0,0,.5);
    opacity:0;visibility:hidden;pointer-events:none;
    transform:translateY(-10px);
    transition:opacity .24s ease,transform .3s var(--ease),visibility .3s;
  }
  .site-header[data-open] .site-nav{
    opacity:1;visibility:visible;pointer-events:auto;transform:none;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;width:100%}
  .nav-link{
    padding:13px 14px;border-radius:11px;font-size:15px;letter-spacing:.04em;
  }
  .nav-link::after{display:none}
  .nav-link:hover{background:rgba(242,201,76,.08)}
  .nav-link[aria-current="page"]{background:rgba(242,201,76,.14);color:var(--gold)}
  .nav-cta{margin:12px 0 0;width:100%;padding:13px 20px;font-size:14px}
  .grid--split{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:860px){
  .footer-inner{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
  .grid--3{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:680px){
  .header-inner{padding-block:9px}
  .brand-name{font-size:15px}
  .brand-version{font-size:9px;letter-spacing:.16em}
  .brand-mark{width:36px;height:36px;border-radius:11px}
  .rail-inner{min-height:32px;font-size:10px;letter-spacing:.16em}
  .grid--2{grid-template-columns:minmax(0,1fr)}
  .footer-inner{grid-template-columns:1fr}
  .footer-legal{flex-direction:column;align-items:flex-start}
}

/* ---------- 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],
  [data-reveal].is-hidden{opacity:1 !important;transform:none !important}
  .rail-dot{animation:none}
}