/* ==========================================================================
   196体育赛 · 共享站点样式  /assets/site.css
   蓝图网格 · 命令栏导航 · 赛场配色（草皮电光绿 / 跑道橙 / 深空底）
   ========================================================================== */

/* ---------- 1. 变量 ---------- */
:root{
  --c-void:#0E1721;
  --c-panel:#16232F;
  --c-line:#24384A;
  --c-green:#2EE6A8;
  --c-orange:#FF6B1A;
  --c-cyan:#59D9FF;
  --c-lime:#B8FF3D;
  --c-text:#EAF2F7;
  --c-muted:#93A7B5;
  --c-alert:#FF4D5E;
  --c-ink:#05160F;
  --c-deep:#0A1119;

  --font-head:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;

  --shell:1240px;
  --gutter:clamp(16px,4vw,40px);
  --bw:2px;
  --shadow-hard:5px 5px 0 rgba(0,0,0,.55);
  --shadow-hard-lg:8px 8px 0 rgba(0,0,0,.55);
  --shadow-green:5px 5px 0 rgba(46,230,168,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse}
:focus-visible{outline:3px solid var(--c-lime);outline-offset:3px}
#main-content:focus-visible{outline-offset:-4px}

/* ---------- 3. 基础排版 ---------- */
body{
  background:var(--c-void);
  color:var(--c-text);
  font-family:var(--font-body);
  font-size:17px;
  font-weight:400;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(36,56,74,.6) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36,56,74,.6) 1px, transparent 1px);
  background-size:72px 72px;
  opacity:.32;
}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:900;letter-spacing:-.02em;line-height:1.22}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.5rem,2.8vw,1.9rem)}
h3{font-size:1.25rem;font-weight:800}
p{color:#D2DEE7}
::selection{background:var(--c-green);color:var(--c-ink)}

/* ---------- 4. 布局骨架 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.container{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.section{position:relative;padding-block:clamp(48px,7vw,96px)}
.section--tight{padding-block:clamp(32px,4.5vw,60px)}
.section--panel{background:var(--c-panel);border-block:var(--bw) solid var(--c-line)}
.slant{clip-path:polygon(0 0,100% 3vw,100% 100%,0 calc(100% - 3vw))}
.grid{display:grid;gap:clamp(16px,2.4vw,28px);grid-template-columns:1fr}
.grid--2,.grid--3,.grid--4,.grid--split,.grid--split--wide{display:grid;gap:clamp(16px,2.4vw,28px);grid-template-columns:1fr}
@media (min-width:768px){
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1024px){
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
  .grid--split{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr)}
  .grid--split--wide{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr)}
}
.rule{height:var(--bw);border:0;background:var(--c-line);margin-block:clamp(24px,3vw,40px)}

/* ---------- 5. 标题与索引 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-num);font-size:.7rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--c-cyan);
}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--c-green);flex:0 0 auto}
.idx{font-family:var(--font-num);font-size:.7rem;letter-spacing:.1em;color:var(--c-cyan)}
.coord{font-family:var(--font-num);font-size:.68rem;letter-spacing:.1em;color:var(--c-muted);opacity:.72}
.section-head{display:grid;gap:10px;margin-bottom:clamp(24px,3.5vw,40px);max-width:860px}
.section-title{font-family:var(--font-head);font-weight:900;font-size:clamp(1.5rem,2.8vw,1.9rem);line-height:1.25;letter-spacing:-.02em}
.section-lead{color:var(--c-muted);font-size:1rem;max-width:68ch}
.prose{max-width:74ch}
.prose p{margin-bottom:1.05em}
.prose h2{margin:1.6em 0 .6em;font-size:1.4rem}
.prose h3{margin:1.4em 0 .5em}
.prose ul{list-style:square;padding-left:1.15em;margin-bottom:1.1em}
.prose li{color:#C9D8E2;margin-bottom:.45em}
.prose strong{color:var(--c-text);font-weight:800}

/* ---------- 6. 面板与数据块 ---------- */
.panel{position:relative;background:var(--c-panel);border:var(--bw) solid var(--c-line);padding:clamp(18px,2.4vw,28px)}
.panel--accent{border-left:5px solid var(--c-green)}
.panel--flush{padding:0}
.panel__corner{position:absolute;top:-2px;right:-2px;background:var(--c-line);color:var(--c-text);font-family:var(--font-num);font-size:.66rem;letter-spacing:.1em;padding:3px 8px}
.panel__title{font-family:var(--font-head);font-weight:800;font-size:1.12rem;letter-spacing:-.01em;margin-bottom:6px}
.panel__text{color:var(--c-muted);font-size:.94rem}

.kpi-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--c-line);border:var(--bw) solid var(--c-line)}
@media (min-width:768px){.kpi-row{grid-template-columns:repeat(4,minmax(0,1fr))}}
.kpi{background:var(--c-panel);padding:16px 18px}
.kpi__value{font-family:var(--font-num);font-weight:700;font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.1;letter-spacing:-.03em;color:var(--c-green)}
.kpi__unit{font-family:var(--font-num);font-size:.72rem;letter-spacing:.06em;color:var(--c-muted);margin-left:5px}
.kpi__label{display:block;margin-top:6px;font-size:.76rem;letter-spacing:.06em;color:var(--c-muted)}

.tag{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-num);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;padding:4px 9px;border:1px solid var(--c-line);color:var(--c-muted)}
.tag--green{color:var(--c-green);border-color:rgba(46,230,168,.5)}
.tag--orange{color:var(--c-orange);border-color:rgba(255,107,26,.5)}
.tag--alert{color:var(--c-alert);border-color:rgba(255,77,94,.5)}

/* ---------- 7. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-head);font-weight:800;font-size:.86rem;letter-spacing:.02em;
  padding:12px 20px;border:var(--bw) solid var(--c-text);background:transparent;color:var(--c-text);
  cursor:pointer;box-shadow:4px 4px 0 rgba(0,0,0,.5);
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 rgba(0,0,0,.55)}
.btn:active{transform:translate(1px,1px);box-shadow:2px 2px 0 rgba(0,0,0,.5)}
.btn--primary{background:var(--c-green);color:var(--c-ink);border-color:var(--c-ink);box-shadow:var(--shadow-green)}
.btn--primary:hover{background:var(--c-lime);box-shadow:6px 6px 0 rgba(184,255,61,.24)}
.btn--accent{background:var(--c-orange);color:#180A02;border-color:#180A02;box-shadow:5px 5px 0 rgba(255,107,26,.24)}
.btn--accent:hover{background:#FF8A45;box-shadow:6px 6px 0 rgba(255,107,26,.28)}
.btn--ghost{background:rgba(22,35,47,.92);border-color:var(--c-line);color:var(--c-cyan);box-shadow:none}
.btn--ghost:hover{border-color:var(--c-cyan);color:var(--c-text);transform:translate(-2px,-2px);box-shadow:4px 4px 0 rgba(89,217,255,.2)}
.btn--sm{padding:8px 14px;font-size:.78rem}

/* ---------- 8. 面包屑 ---------- */
.breadcrumb{padding-top:20px;font-size:.8rem;color:var(--c-muted)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__item{display:flex;align-items:center;gap:8px}
.breadcrumb__link{color:var(--c-cyan);border-bottom:1px solid transparent;transition:border-color .16s var(--ease)}
.breadcrumb__link:hover{border-bottom-color:var(--c-cyan)}
.breadcrumb__sep{color:var(--c-line)}
.breadcrumb__current{color:var(--c-text);font-weight:700}

/* ---------- 9. 头部 · 命令栏 ---------- */
.skip-link{
  position:absolute;left:8px;top:-72px;z-index:120;
  background:var(--c-green);color:var(--c-ink);font-weight:800;font-size:.86rem;
  padding:10px 16px;border:var(--bw) solid var(--c-ink);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:8px}

.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(14,23,33,.97);
  border-bottom:var(--bw) solid var(--c-line);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.cmdbar{display:flex;align-items:center;gap:14px;min-height:66px;padding-block:10px;flex-wrap:wrap}

/* 品牌 */
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;padding:2px 0}
.brand__mark{
  display:grid;place-items:center;width:44px;height:44px;flex:0 0 auto;
  background:var(--c-green);color:var(--c-ink);
  font-family:var(--font-num);font-weight:700;font-size:.95rem;letter-spacing:-.02em;
  border:var(--bw) solid var(--c-text);
  box-shadow:var(--shadow-green);
  transform:skewX(-6deg);
}
.brand__text{display:flex;flex-direction:column;line-height:1.18}
.brand__name{font-family:var(--font-head);font-weight:900;font-size:1.06rem;letter-spacing:-.02em}
.brand__desc{font-family:var(--font-num);font-size:.64rem;letter-spacing:.14em;color:var(--c-muted)}

/* 移动按钮 */
.nav-toggle{
  margin-left:auto;display:inline-flex;align-items:center;gap:10px;
  background:var(--c-panel);border:var(--bw) solid var(--c-line);color:var(--c-text);
  padding:9px 12px;cursor:pointer;
  font-family:var(--font-num);font-size:.72rem;letter-spacing:.14em;
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--c-green);color:var(--c-green)}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars i{display:block;height:2px;background:var(--c-green);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.site-header[data-open] .nav-toggle{border-color:var(--c-green);color:var(--c-green);background:rgba(46,230,168,.08)}
.site-header[data-open] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars i:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 导航 */
.nav{
  position:absolute;left:0;right:0;top:100%;z-index:2;
  display:none;
  background:var(--c-panel);
  border-bottom:var(--bw) solid var(--c-green);
  padding:10px var(--gutter) 22px;
  max-height:calc(100vh - 90px);
  overflow-y:auto;
}
.site-header[data-open] .nav{display:block;animation:navIn .22s var(--ease) both}
@keyframes navIn{from{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:none}}
.nav__item{display:block}
.nav__link{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:12px 10px;border-bottom:1px solid var(--c-line);
  font-family:var(--font-head);font-weight:800;font-size:.96rem;
  transition:color .16s var(--ease),background-color .16s var(--ease);
}
.nav__index{font-family:var(--font-num);font-size:.7rem;letter-spacing:.06em;color:var(--c-cyan)}
.nav__label{flex:1 1 auto}
.nav__dot{width:6px;height:6px;background:var(--c-line);transition:background-color .16s var(--ease),box-shadow .16s var(--ease),width .16s var(--ease)}
.nav__link:hover{color:var(--c-green);background:rgba(46,230,168,.07)}
.nav__link[aria-current="page"]{color:var(--c-green);background:rgba(46,230,168,.08)}
.nav__link[aria-current="page"]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-green)}
.nav__link[aria-current="page"] .nav__index{color:var(--c-green)}
.nav__link[aria-current="page"] .nav__dot{background:var(--c-green);box-shadow:0 0 10px var(--c-green)}
.nav__cta{display:inline-flex;margin-top:18px}

@media (min-width:1024px){
  .nav-toggle{display:none}
  .nav{
    position:static;display:flex;align-items:center;gap:6px;margin-left:auto;
    background:none;border:0;padding:0;max-height:none;overflow:visible;animation:none;
  }
  .nav__list{display:flex;align-items:center;gap:2px}
  .nav__item{display:block}
  .nav__link{
    flex-direction:column;align-items:flex-start;gap:1px;
    padding:9px 13px;border:0;line-height:1.2;font-size:.92rem;
  }
  .nav__index{font-size:.6rem;color:var(--c-muted);transition:color .16s var(--ease)}
  .nav__dot{position:absolute;left:13px;bottom:3px;margin:0;width:0;height:2px}
  .nav__link[aria-current="page"]{background:rgba(46,230,168,.07)}
  .nav__link[aria-current="page"]::before{display:none}
  .nav__link[aria-current="page"] .nav__dot{width:24px;background:var(--c-green);box-shadow:0 0 10px var(--c-green)}
  .nav__link:hover .nav__index{color:var(--c-green)}
  .nav__cta{display:none}
}

/* 状态带 */
.status-strip{position:relative;background:rgba(22,35,47,.72);border-top:1px solid var(--c-line);overflow:hidden}
.status-strip__inner{display:flex;align-items:center;gap:14px;padding-block:7px;font-size:.76rem;color:var(--c-muted)}
.status-strip__list{display:flex;align-items:center;gap:18px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-right:6px}
.status-strip__list::-webkit-scrollbar{display:none}
.status-strip__item{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.status-strip__key{color:var(--c-muted)}
.status-strip__value{color:var(--c-text);font-weight:700;font-size:.76rem}
.status-strip__pulse{width:6px;height:6px;flex:0 0 auto;background:var(--c-green);animation:pulse 2.6s var(--ease) infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(46,230,168,.55)}
  70%{box-shadow:0 0 0 7px rgba(46,230,168,0)}
  100%{box-shadow:0 0 0 0 rgba(46,230,168,0)}
}
.status-strip__cta{display:none}
@media (min-width:900px){
  .status-strip__list{overflow:visible}
  .status-strip__cta{display:inline-flex;margin-left:auto;flex:0 0 auto}
}

/* 扫描线与滚动进度 */
.scanline{position:absolute;left:0;right:0;bottom:0;height:2px;overflow:hidden;pointer-events:none}
.scanline::after{
  content:"";position:absolute;top:0;bottom:0;left:-30%;width:26%;
  background:linear-gradient(90deg,transparent,var(--c-green),transparent);
  opacity:.55;animation:sweep 7s linear infinite;
}
@keyframes sweep{from{transform:translateX(0)}to{transform:translateX(500%)}}
.scroll-progress{
  position:absolute;left:0;bottom:-2px;height:2px;width:0;z-index:3;
  background:var(--c-orange);
  box-shadow:0 0 8px rgba(255,107,26,.8);
  transition:width .1s linear;
}

/* ---------- 10. 页脚 ---------- */
.site-footer{position:relative;background:var(--c-deep);border-top:var(--bw) solid var(--c-line);margin-top:auto}
.site-footer::before{content:"";position:absolute;top:-2px;left:0;width:min(38%,420px);height:var(--bw);background:var(--c-green)}
.footer-inner{padding-block:clamp(40px,6vw,72px)}
.footer-top{display:grid;grid-template-columns:1fr;gap:clamp(24px,3.4vw,40px)}
@media (min-width:768px){
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1;border-bottom:1px solid var(--c-line);padding-bottom:22px}
}
@media (min-width:1080px){
  .footer-top{grid-template-columns:1.6fr 1fr 1fr 1.1fr 1.4fr;align-items:start}
  .footer-brand{grid-column:auto;border-bottom:0;padding-bottom:0}
}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-brand__logo{display:inline-flex;align-items:center;gap:12px}
.footer-brand__meta{display:flex;flex-wrap:wrap;gap:8px}
.footer-brand__meta li{
  font-family:var(--font-num);font-size:.68rem;letter-spacing:.1em;
  padding:4px 9px;border:1px solid var(--c-line);color:var(--c-muted);
}
.footer-col__title{
  font-family:var(--font-num);font-size:.72rem;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--c-green);margin-bottom:14px;
}
.footer-col__list{display:grid;gap:9px}
.footer-col__link{
  font-size:.9rem;color:var(--c-muted);
  border-bottom:1px solid transparent;padding-bottom:1px;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer-col__link:hover{color:var(--c-text);border-bottom-color:var(--c-green)}
.footer-contact{display:flex;flex-direction:column}
.footer-contact__list{display:grid;gap:10px;margin-bottom:14px}
.footer-contact__row{display:grid;grid-template-columns:44px 1fr;gap:10px;font-size:.88rem}
.footer-contact__key{font-family:var(--font-num);font-size:.7rem;letter-spacing:.1em;color:var(--c-cyan);padding-top:4px}
.footer-contact__val{color:var(--c-text);word-break:break-word}
.footer-contact__note{font-size:.79rem;line-height:1.7;color:var(--c-muted);border-left:2px solid var(--c-line);padding-left:12px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:clamp(28px,4vw,48px);padding-top:18px;
  border-top:1px solid var(--c-line);
  font-size:.78rem;color:var(--c-muted);
}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:8px 18px}
.footer-legal__link{color:var(--c-cyan);border-bottom:1px solid transparent;padding-bottom:1px}
.footer-legal__link:hover{border-bottom-color:var(--c-cyan)}
.footer-copy{color:var(--c-muted)}
.footer-icp{font-family:var(--font-num);font-size:.74rem;letter-spacing:.02em;color:var(--c-muted);margin-left:auto}

/* ---------- 11. 筛选栏 ---------- */
.filterbar{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-block:14px;margin-bottom:clamp(18px,2.6vw,28px);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.filterbar__label{font-family:var(--font-num);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--c-muted);margin-right:4px}
.filter-chip{
  font-family:var(--font-num);font-size:.76rem;letter-spacing:.06em;
  padding:7px 13px;border:var(--bw) solid var(--c-line);
  background:transparent;color:var(--c-muted);cursor:pointer;
  transition:transform .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),background-color .16s var(--ease),box-shadow .16s var(--ease);
}
.filter-chip:hover{color:var(--c-text);border-color:var(--c-cyan);transform:translateY(-2px)}
.filter-chip[aria-pressed="true"]{background:var(--c-green);border-color:var(--c-green);color:var(--c-ink);box-shadow:3px 3px 0 rgba(46,230,168,.25)}
.filter-status{font-family:var(--font-num);font-size:.72rem;color:var(--c-muted);margin-left:auto;letter-spacing:.06em}
[data-filter-item].is-hidden{display:none}

/* ---------- 12. 表格 ---------- */
.table-wrap{width:100%;overflow-x:auto;border:var(--bw) solid var(--c-line);background:var(--c-panel)}
.data-table{width:100%;min-width:560px;font-size:.9rem}
.data-table caption{
  text-align:left;padding:12px 14px;
  font-family:var(--font-num);font-size:.72rem;letter-spacing:.14em;
  color:var(--c-muted);border-bottom:1px solid var(--c-line);
}
.data-table th,.data-table td{padding:11px 14px;border-bottom:1px solid var(--c-line);text-align:left;vertical-align:middle}
.data-table thead th{
  font-family:var(--font-num);font-size:.71rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--c-cyan);background:rgba(36,56,74,.45);
}
.data-table tbody tr:nth-child(even){background:rgba(36,56,74,.22)}
.data-table tbody tr:hover{background:rgba(46,230,168,.07)}
.data-table .num{font-family:var(--font-num);font-weight:700;text-align:right;letter-spacing:-.01em}
.data-table .peak{color:var(--c-lime)}
.data-table .alert-cell{color:var(--c-alert)}
.detail-row td{background:rgba(14,23,33,.78);color:var(--c-muted);font-size:.84rem;padding:14px}
.table-toggle{
  font-family:var(--font-num);font-size:.72rem;letter-spacing:.06em;
  background:transparent;border:1px solid var(--c-line);color:var(--c-cyan);
  padding:4px 9px;cursor:pointer;
  transition:color .16s var(--ease),border-color .16s var(--ease),background-color .16s var(--ease);
}
.table-toggle:hover{border-color:var(--c-cyan);color:var(--c-text)}
.table-toggle[aria-expanded="true"]{background:var(--c-cyan);border-color:var(--c-cyan);color:var(--c-void)}

/* ---------- 13. 图片容器 ---------- */
.media{
  position:relative;display:block;overflow:hidden;
  background:var(--c-panel);border:var(--bw) solid var(--c-line);
}
.media--16x9{aspect-ratio:16 / 9}
.media--4x3{aspect-ratio:4 / 3}
.media--1x1{aspect-ratio:1 / 1}
.media--tall{aspect-ratio:3 / 4}
.media__img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease),filter .4s var(--ease)}
.media:hover .media__img{transform:scale(1.04)}
.media__overlay{position:absolute;inset:0;pointer-events:none;background:linear-gradient(160deg,rgba(14,23,33,0) 38%,rgba(14,23,33,.9))}
.media__tag{
  position:absolute;left:0;top:0;
  font-family:var(--font-num);font-size:.66rem;letter-spacing:.12em;
  background:var(--c-orange);color:#180A02;padding:4px 9px;
}
.media__cap{position:absolute;left:12px;right:12px;bottom:10px;font-size:.75rem;color:var(--c-muted);letter-spacing:.04em}

/* ---------- 14. 返回顶部 ---------- */
.to-top{
  position:fixed;right:clamp(14px,3vw,30px);bottom:clamp(14px,3vw,30px);z-index:70;
  display:none;place-items:center;width:48px;height:48px;
  background:var(--c-panel);border:var(--bw) solid var(--c-green);color:var(--c-green);
  font-family:var(--font-num);font-size:.9rem;cursor:pointer;box-shadow:var(--shadow-hard);
}
.to-top[data-shown="true"]{display:grid}
.to-top:hover{background:var(--c-green);color:var(--c-ink)}

/* ---------- 15. 入场显现 ---------- */
html.has-js [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);transition-delay:var(--d,0s)}
html.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 16. 无障碍与降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html.has-js [data-reveal]{opacity:1;transform:none}
  .scanline{display:none}
}