/* ============================================================
   安博体育 · 共享站点样式 /assets/site.css
   深墨绿为地 · 荧光青为数据血脉 · 暖橙只为行动亮起
   ============================================================ */

:root{
  --ink-950:#03140F;
  --ink-900:#06231F;
  --ink-800:#0A2C26;
  --ink-700:#0E3A33;
  --cyan:#3FF5D0;
  --cyan-soft:#7FE7D4;
  --orange:#FF8A3D;
  --orange-deep:#D45F19;
  --paper:#F2EFE6;
  --gray:#9FB8B2;
  --amber:#F5C26B;

  --line:rgba(63,245,208,.18);
  --line-soft:rgba(159,184,178,.18);
  --panel-glow:radial-gradient(120% 140% at 100% 0%, rgba(63,245,208,.10), rgba(63,245,208,0) 62%);

  --radius-lg:28px;
  --radius-md:18px;
  --radius-sm:12px;
  --radius-pill:999px;

  --wrap:1180px;
  --gutter:24px;

  --font-display:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
}

/* ---------- Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--ink-900);
  color:var(--paper);
  font-family:var(--font-display);
  font-size:1rem;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{
  margin:0;
  color:var(--paper);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.12;
}
p{ margin:0 0 1em; }
p:last-child{ margin-bottom:0; }
img,svg,video{ max-width:100%; display:block; }
figure{ margin:0; }
a{ color:var(--cyan); text-decoration:none; transition:color .2s ease; }
a:hover{ color:var(--orange); }
button{ font:inherit; color:inherit; }
ul,ol{ margin:0; padding:0; }
:focus-visible{ outline:2px solid var(--orange); outline-offset:3px; border-radius:6px; }

/* ---------- 中文排版工具 ---------- */
.display-xl{
  font-size:clamp(2.4rem,8vw,7rem);
  line-height:1.02;
  letter-spacing:-.03em;
  font-weight:800;
  font-stretch:condensed;
  color:var(--paper);
}
.display-lg{
  font-size:clamp(2rem,5vw,3.6rem);
  line-height:1.04;
  letter-spacing:-.025em;
  font-weight:800;
}
.display-md{
  font-size:clamp(1.4rem,3vw,2.2rem);
  line-height:1.14;
  letter-spacing:-.015em;
  font-weight:800;
}
.kicker{
  display:inline-block;
  font-size:.72rem;
  line-height:1.4;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--cyan-soft);
}
.lede{
  font-size:clamp(1rem,1.6vw,1.18rem);
  line-height:1.72;
  color:var(--paper);
  max-width:34em;
}
.note,
.muted{
  font-size:.82rem;
  line-height:1.7;
  color:var(--gray);
}
.data-num{
  font-family:var(--font-mono);
  font-size:1.4em;
  font-weight:700;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  color:var(--cyan);
}
.rail-note{
  display:inline-block;
  font-size:.72rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gray);
  writing-mode:vertical-rl;
  transform:rotate(180deg);
}

/* ---------- 容器与分区 ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--gutter);
}
.section{ padding:clamp(48px,8vw,96px) 0; }
.band{ background:var(--ink-900); }
.band--mid{ background:var(--ink-700); }
.band--deep{ background:var(--ink-800); }
.band--night{ background:var(--ink-950); }

.grid-5-7{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(24px,4vw,56px);
  align-items:start;
}
.grid-compare{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.grid-compare > *{
  background:var(--ink-800);
  padding:clamp(20px,3vw,32px);
}
.prose{ max-width:34em; }
.prose h2{ margin:1.6em 0 .5em; font-size:clamp(1.3rem,2.4vw,1.8rem); }
.prose h3{ margin:1.4em 0 .4em; font-size:1.1rem; }
.prose ul{ margin:0 0 1.2em; padding-left:1.2em; }
.prose li{ list-style:disc; margin:.35em 0; }
.stack > * + *{ margin-top:clamp(16px,2vw,28px); }
.stack-tight > * + *{ margin-top:12px; }

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:14px;
  margin-bottom:clamp(20px,3vw,36px);
}
.section-label{
  font-size:.72rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gray);
  font-weight:600;
}
.section-head--split{
  justify-content:space-between;
  align-items:flex-end;
}

/* ---------- 按钮 / 胶囊 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-family:inherit;
  font-size:.9rem;
  font-weight:700;
  line-height:1.3;
  text-decoration:none;
  cursor:pointer;
  transition:background .24s ease,color .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.btn--accent{ background:var(--orange); color:var(--ink-950); }
.btn--accent:hover{ background:#FFA163; color:var(--ink-950); box-shadow:0 0 0 4px rgba(255,138,61,.18); }
.btn--cyan{ background:var(--cyan); color:var(--ink-950); }
.btn--cyan:hover{ background:var(--cyan-soft); color:var(--ink-950); }
.btn--ghost{ background:transparent; color:var(--paper); border-color:rgba(63,245,208,.35); }
.btn--ghost:hover{ color:var(--cyan); border-color:var(--cyan); background:rgba(63,245,208,.08); }
.btn--solid{ background:var(--ink-700); color:var(--paper); }
.btn--solid:hover{ background:var(--ink-800); color:var(--cyan); }

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 15px;
  border-radius:var(--radius-pill);
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--cyan-soft);
  background:rgba(63,245,208,.08);
  border:1px solid rgba(63,245,208,.2);
}

.filter-group{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:clamp(20px,3vw,32px);
}
.filter-chip{
  display:inline-flex;
  align-items:center;
  padding:9px 18px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(63,245,208,.24);
  background:transparent;
  color:var(--gray);
  font-family:inherit;
  font-size:.82rem;
  font-weight:600;
  letter-spacing:.06em;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.filter-chip:hover{ color:var(--paper); border-color:var(--cyan); background:rgba(63,245,208,.08); }
.filter-chip[aria-pressed="true"],
.filter-chip.is-active{
  background:var(--orange);
  border-color:var(--orange);
  color:var(--ink-950);
  box-shadow:0 0 0 4px rgba(255,138,61,.16);
}
[data-filter-item][hidden]{ display:none; }

/* ---------- 面板 / 数据块 ---------- */
.panel{
  background:var(--ink-800);
  border-radius:var(--radius-lg);
  padding:clamp(20px,3vw,32px);
}
.panel--mid{ background:var(--ink-700); background-image:var(--panel-glow); }
.panel--outline{ background:transparent; border:1px solid var(--line); }

.stat{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:16px 0;
  border-bottom:1px solid var(--line-soft);
}
.stat:last-child{ border-bottom:0; }
.stat-label{
  font-size:.7rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gray);
}
.stat-value{
  font-family:var(--font-mono);
  font-size:clamp(1.6rem,3vw,2.4rem);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  color:var(--paper);
}
.stat-value--cyan{ color:var(--cyan); }
.stat-value--orange{ color:var(--orange); }

.term{
  border-left:2px solid var(--orange-deep);
  padding:4px 0 4px 16px;
  font-size:.86rem;
  line-height:1.7;
  color:var(--gray);
}
.term strong{ color:var(--paper); font-weight:700; }

.evidence{
  border-radius:var(--radius-md);
  border:1px dashed rgba(63,245,208,.32);
  background:rgba(63,245,208,.04);
  padding:16px 20px;
  font-size:.84rem;
  line-height:1.7;
  color:var(--gray);
}
.evidence strong{ color:var(--cyan-soft); }

.rail{
  display:flex;
  gap:16px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:0 var(--gutter) 16px;
  margin:0 calc(var(--gutter) * -1);
  -webkit-overflow-scrolling:touch;
}
.rail > *{
  flex:0 0 min(300px,78vw);
  scroll-snap-align:start;
}
.rail::-webkit-scrollbar{ height:6px; }
.rail::-webkit-scrollbar-track{ background:rgba(159,184,178,.12); border-radius:99px; }
.rail::-webkit-scrollbar-thumb{ background:rgba(63,245,208,.34); border-radius:99px; }

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  font-size:.74rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--gray);
  margin:0 0 18px;
}
.breadcrumbs ol{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  list-style:none;
  margin:0;
  padding:0;
}
.breadcrumbs li{ list-style:none; }
.breadcrumbs li + li::before{
  content:"/";
  margin-right:10px;
  color:rgba(159,184,178,.5);
}
.breadcrumbs a{ color:var(--cyan-soft); }
.breadcrumbs a:hover{ color:var(--orange); }

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  display:block;
  border-radius:var(--radius-lg);
  background:linear-gradient(140deg,var(--ink-700),var(--ink-950) 72%);
  aspect-ratio:16 / 9;
}
.media-frame > img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
}
.media-frame figcaption{
  position:absolute;
  left:18px;
  bottom:16px;
  right:18px;
  font-size:.7rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--paper);
  text-shadow:0 1px 14px rgba(3,20,15,.9);
}
.media-frame--wide{ aspect-ratio:21 / 9; }
.media-frame--square{ aspect-ratio:1 / 1; }
.media-frame--tall{ aspect-ratio:3 / 4; }
.media-frame--contain{ aspect-ratio:4 / 3; }
.media-frame--contain > img{ object-fit:contain; padding:12px; }

/* ============================================================
   刊头
   ============================================================ */
.skip-link{
  position:absolute;
  top:0;
  left:50%;
  transform:translate(-50%,-220%);
  z-index:120;
  padding:10px 20px;
  border-radius:var(--radius-pill);
  background:var(--orange);
  color:var(--ink-950);
  font-size:.82rem;
  font-weight:700;
  text-decoration:none;
  transition:transform .2s ease;
}
.skip-link:focus{ transform:translate(-50%,8px); color:var(--ink-950); }

.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(6,35,31,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-compact{
  background:rgba(3,20,15,.96);
  box-shadow:0 16px 34px rgba(3,20,15,.5);
}
.header-inner{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:20px var(--gutter) 16px;
  transition:padding .3s ease,gap .3s ease;
}
.header-kicker{
  margin:0;
  font-size:.68rem;
  font-weight:600;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--gray);
  text-align:center;
}
.header-row{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
}
.brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  text-decoration:none;
  color:var(--paper);
}
.brand-zh{
  font-size:clamp(1.9rem,5vw,3rem);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1;
  font-stretch:condensed;
  color:var(--paper);
}
.brand-en{
  margin-top:7px;
  font-size:.6rem;
  font-weight:600;
  letter-spacing:.34em;
  text-transform:uppercase;
  color:var(--cyan-soft);
}
.brand:hover .brand-zh{ color:var(--cyan); }

.nav-toggle{
  position:absolute;
  right:0;
  top:50%;
  transform:translateY(-50%);
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:9px 16px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(63,245,208,.35);
  background:transparent;
  color:var(--paper);
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.12em;
  cursor:pointer;
  transition:border-color .22s ease,background .22s ease;
}
.nav-toggle:hover{ border-color:var(--cyan); background:rgba(63,245,208,.08); }
.nav-toggle-bars{
  position:relative;
  display:block;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--cyan);
  transition:background .22s ease;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--cyan);
  transition:transform .25s ease;
}
.nav-toggle-bars::before{ top:-5px; }
.nav-toggle-bars::after{ top:5px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars{ background:transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{ transform:translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{ transform:translateY(-5px) rotate(-45deg); }

.site-nav{ width:100%; }
.nav-list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:6px;
  list-style:none;
  margin:0;
  padding:0;
}
.nav-list li{ list-style:none; }
.nav-link{
  display:inline-block;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:.85rem;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--gray);
  text-decoration:none;
  transition:color .22s ease,background .22s ease,border-color .22s ease;
}
.nav-link:hover{
  color:var(--paper);
  background:rgba(63,245,208,.08);
  border-color:rgba(63,245,208,.28);
}
.nav-link[aria-current="page"]{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--ink-950);
}

.header-progress{
  position:absolute;
  left:0;
  bottom:-1px;
  width:100%;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  opacity:.9;
  pointer-events:none;
}

/* 紧凑态 */
.site-header.is-compact .header-inner{ padding:10px var(--gutter); gap:8px; }
.site-header.is-compact .header-kicker{ display:none; }
.site-header.is-compact .brand-zh{ font-size:1.4rem; }
.site-header.is-compact .brand-en{ display:none; }
.site-header.is-compact .nav-link{ padding:6px 14px; font-size:.79rem; }

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  background:var(--ink-950);
  border-top:1px solid var(--line);
  color:var(--gray);
  padding:clamp(44px,6vw,72px) var(--gutter) 32px;
}
.footer-inner{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
}
.footer-brand-zh{
  margin:0;
  font-size:clamp(1.4rem,3vw,1.9rem);
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--paper);
}
.footer-brand-note{
  margin:6px 0 0;
  font-size:.68rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan-soft);
}
.footer-cols{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:clamp(24px,3vw,40px);
  margin-top:clamp(32px,4vw,48px);
}
.footer-title{
  margin:0 0 14px;
  font-size:.7rem;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--paper);
}
.footer-list{
  display:flex;
  flex-direction:column;
  gap:10px;
  list-style:none;
  margin:0;
  padding:0;
  font-size:.88rem;
  line-height:1.6;
}
.footer-list li{ list-style:none; }
.footer-list a{
  color:var(--gray);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.footer-list a:hover{
  color:var(--cyan);
  border-bottom-color:var(--orange);
}
.footer-list--plain{ font-family:var(--font-mono); font-size:.82rem; }
.footer-note{
  margin:14px 0 0;
  font-size:.76rem;
  line-height:1.65;
  color:var(--gray);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  align-items:center;
  justify-content:space-between;
  margin-top:clamp(32px,4vw,52px);
  padding-top:20px;
  border-top:1px solid var(--line-soft);
  font-size:.76rem;
}
.footer-legal{ margin:0; color:var(--gray); }
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  list-style:none;
  margin:0;
  padding:0;
}
.footer-links li{ list-style:none; }
.footer-links a{ color:var(--gray); }
.footer-links a:hover{ color:var(--cyan); }

/* ============================================================
   动效协议
   ============================================================ */
.js-ready [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .5s ease,transform .5s ease;
}
.js-ready [data-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:900px){
  .grid-5-7{ grid-template-columns:1fr; }
  .grid-compare{ grid-template-columns:1fr; }
  .footer-cols{ grid-template-columns:repeat(2,1fr); }
}

@media (max-width:859px){
  .site-nav{ display:none; }
  .site-nav[data-open]{
    display:block;
    padding-top:10px;
    border-top:1px solid var(--line);
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:6px;
  }
  .nav-link{
    display:block;
    padding:12px 18px;
    border-radius:var(--radius-md);
    text-align:left;
    font-size:.92rem;
  }
  .site-header.is-compact .nav-link{ padding:12px 18px; font-size:.92rem; }
}

@media (min-width:860px){
  .nav-toggle{ display:none; }
  .site-header.is-compact .header-inner{
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    gap:24px;
  }
  .site-header.is-compact .header-row{ width:auto; }
  .site-header.is-compact .site-nav{ width:auto; }
  .site-header.is-compact .brand{ align-items:flex-start; }
}

@media (max-width:560px){
  :root{ --gutter:18px; }
  .footer-cols{ grid-template-columns:1fr; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
  .rail > *{ flex:0 0 82vw; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js-ready [data-reveal]{ opacity:1; transform:none; }
}