/* ============================================================
   大江体育赛场 · 共享样式 /assets/site.css
   夜场记分牌体系：夜场炭黑底色 + 矿物色阶 + 粗野主义结构
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root{
  --ink:#0E1412;
  --deep:#142A23;
  --moss:#1E4438;
  --stone:#38423D;
  --paper:#F3EFE4;
  --cyan:#4FE0BE;
  --orange:#E8762A;
  --red:#B23A2E;
  --yellow:#E9C64A;
  --clay:#A9694A;

  --line:rgba(243,239,228,.16);
  --line-strong:rgba(243,239,228,.34);
  --paper-dim:rgba(243,239,228,.76);

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-editorial:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC",sans-serif;
  --font-num:"JetBrains Mono","IBM Plex Mono",ui-monospace,monospace;

  --shell-max:1320px;
  --gutter:24px;
  --radius:2px;
  --shadow-hard:6px 6px 0 rgba(0,0,0,.52);
  --shadow-hard-sm:4px 4px 0 rgba(0,0,0,.46);
  --shadow-lift:9px 11px 0 rgba(0,0,0,.58);

  --ease:180ms cubic-bezier(.34,.78,.3,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.008em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%;height:auto}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid var(--yellow);outline-offset:3px}
::selection{background:var(--cyan);color:var(--ink)}

/* ---------- 3. 排版工具 ---------- */
.display{
  font-family:var(--font-display);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:.94;
  font-size:clamp(2.5rem,8vw,7.5rem);
}
.editorial{font-family:var(--font-editorial);font-weight:600;letter-spacing:.01em}
.num{font-family:var(--font-num);font-weight:600;font-variant-numeric:tabular-nums}
.label{
  font-family:var(--font-body);
  font-size:12px;
  font-weight:500;
  letter-spacing:.12em;
  line-height:1.4;
}
.prose{max-width:68ch}
.prose p+p{margin-top:1.1em}
.prose h2,.prose h3{margin-top:1.8em;margin-bottom:.6em;font-family:var(--font-editorial);font-weight:600;line-height:1.3}
.prose h2{font-size:clamp(1.4rem,2.6vw,2rem)}
.prose h3{font-size:clamp(1.15rem,2vw,1.4rem)}
.prose ul{margin:1.1em 0;display:grid;gap:.5em}
.prose ul li{position:relative;padding-left:1.4em}
.prose ul li::before{content:"";position:absolute;left:0;top:.72em;width:10px;height:3px;background:var(--cyan)}

/* ---------- 4. 布局容器与网格 ---------- */
.shell{
  width:min(100% - var(--gutter) * 2, var(--shell-max));
  margin-inline:auto;
}
.grid{display:grid;gap:24px}
.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(0,1.7fr) minmax(0,1fr)}
.grid--tight{gap:16px}

.section{padding:clamp(48px,7vw,96px) 0;position:relative}
.section--tight{padding:clamp(26px,4vw,48px) 0}
.section--paper{background:var(--paper);color:var(--ink)}
.section--moss{background:var(--moss)}
.section--deep{background:var(--deep)}
.section--stone{background:var(--stone)}

.section-head{display:grid;gap:14px;max-width:820px;margin-bottom:clamp(24px,4vw,44px)}
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.16em;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:26px;height:3px;background:var(--orange);flex:0 0 auto}
.section-title{
  font-family:var(--font-editorial);
  font-weight:600;
  font-size:clamp(1.6rem,3.4vw,2.6rem);
  line-height:1.24;
  letter-spacing:.005em;
}
.lede{font-size:1.04rem;color:var(--paper-dim);max-width:62ch}
.section--paper .lede{color:#3b4441}
.section--paper .eyebrow{color:var(--deep)}
.section--paper .eyebrow::before{background:var(--red)}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6em;
  padding:.82em 1.4em;
  border:2px solid var(--paper);
  background:transparent;color:var(--paper);
  font-weight:700;font-size:.95rem;letter-spacing:.02em;
  box-shadow:var(--shadow-hard-sm);
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift)}
.btn--primary{background:var(--orange);border-color:var(--orange);color:var(--ink)}
.btn--ghost{border-color:var(--cyan);color:var(--cyan)}
.btn--ghost:hover{background:var(--cyan);color:var(--ink)}
.btn--paper{border-color:var(--ink);color:var(--ink);box-shadow:4px 4px 0 rgba(14,20,18,.35)}
.btn--paper:hover{box-shadow:7px 7px 0 rgba(14,20,18,.42)}

/* ---------- 6. 标签与状态 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border:2px solid currentColor;
  font-size:12px;font-weight:600;letter-spacing:.08em;line-height:1.5;
}
.chip--up{color:var(--cyan)}
.chip--down{color:var(--red)}
.chip--alert{color:var(--yellow)}
.chip--muted{color:var(--stone);border-color:rgba(243,239,228,.28)}
.chip--solid{background:var(--cyan);border-color:var(--cyan);color:var(--ink)}

/* ---------- 7. 卡片与档案卡 ---------- */
.card{
  background:var(--moss);
  border:3px solid var(--stone);
  box-shadow:var(--shadow-hard);
  padding:24px;
}
.card--paper{background:var(--paper);color:var(--ink);border-color:var(--ink)}
.card--flat{box-shadow:none}
.card-head{
  display:flex;justify-content:space-between;align-items:baseline;gap:14px;
  border-bottom:2px solid var(--line);
  padding-bottom:12px;margin-bottom:16px;
}
.card--paper .card-head{border-bottom-color:rgba(14,20,18,.18)}
.card-title{font-family:var(--font-editorial);font-weight:600;font-size:1.14rem;line-height:1.4}
.card-meta{font-size:12px;letter-spacing:.1em;color:var(--cyan);white-space:nowrap}
.card--paper .card-meta{color:var(--red)}
.card-body{color:var(--paper-dim);font-size:.96rem}
.card--paper .card-body{color:#3b4441}

.filecard{
  position:relative;
  background:var(--moss);
  border:3px solid var(--stone);
  box-shadow:8px 8px 0 rgba(0,0,0,.5);
  padding:32px 24px 24px;
}
.filecard::before{
  content:attr(data-tab);
  position:absolute;top:-15px;left:18px;
  background:var(--orange);color:var(--ink);
  border:2px solid var(--ink);
  font-size:12px;font-weight:700;letter-spacing:.12em;
  padding:3px 12px;line-height:1.5;
}
.filecard--cyan::before{background:var(--cyan)}
.filecard--paper{background:var(--paper);color:var(--ink);border-color:var(--ink)}

/* ---------- 8. 数据块 ---------- */
.stat{display:grid;gap:6px}
.stat-value{
  font-family:var(--font-num);font-weight:700;
  font-size:clamp(1.8rem,4.6vw,3.4rem);
  line-height:1;letter-spacing:-.02em;
}
.stat-value--hot{color:var(--orange)}
.stat-value--cyan{color:var(--cyan)}
.stat-label{font-size:12px;letter-spacing:.14em;color:var(--paper-dim)}
.stat-delta{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-num);font-size:.86rem;font-weight:600;
}
.stat-delta--up{color:var(--cyan)}
.stat-delta--down{color:var(--red)}
.stat-delta--up::before{content:"▲";font-size:.7em}
.stat-delta--down::before{content:"▼";font-size:.7em}

/* ---------- 9. 数据表 ---------- */
.table-wrap{
  overflow-x:auto;
  border:3px solid var(--stone);
  background:var(--moss);
  box-shadow:var(--shadow-hard);
}
.data-table{min-width:560px;font-size:14px;line-height:1.6}
.data-table caption{
  text-align:left;padding:12px 16px;
  font-size:12px;letter-spacing:.12em;color:var(--cyan);
  border-bottom:2px solid var(--stone);
}
.data-table th{
  text-align:left;padding:11px 14px;
  background:var(--deep);
  border-bottom:2px solid var(--stone);
  font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--cyan);
  white-space:nowrap;
}
.data-table td{
  padding:11px 14px;
  border-bottom:1px solid var(--line);
  color:var(--paper-dim);
}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table tbody tr:nth-child(even){background:rgba(243,239,228,.035)}
.data-table th.is-num,.data-table td.is-num{
  text-align:right;
  font-family:var(--font-num);font-weight:600;
  font-variant-numeric:tabular-nums;
  color:var(--paper);
}
.data-table tr[data-zone="up"]{box-shadow:inset 4px 0 0 var(--cyan)}
.data-table tr[data-zone="down"]{box-shadow:inset 4px 0 0 var(--red)}
.data-table tr[data-zone="playoff"]{box-shadow:inset 4px 0 0 var(--yellow)}

/* ---------- 10. 图片容器 ---------- */
.media-frame{
  position:relative;
  border:3px solid var(--stone);
  background:linear-gradient(135deg,var(--moss) 0%,var(--ink) 100%);
  overflow:hidden;
  box-shadow:var(--shadow-hard);
}
.media-frame img{
  width:100%;height:100%;object-fit:cover;
  filter:grayscale(.22) contrast(1.06) brightness(.95);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(14,20,18,0) 42%,rgba(14,20,18,.72) 100%);
}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--wide{aspect-ratio:21/9}
.media-frame__tag{
  position:absolute;top:0;left:0;z-index:2;
  background:var(--cyan);color:var(--ink);
  font-size:12px;font-weight:700;letter-spacing:.1em;
  padding:5px 12px;
}
.media-frame__caption{
  position:absolute;left:0;bottom:0;z-index:2;
  padding:14px 16px;
  font-size:12px;letter-spacing:.06em;color:var(--paper);
}
.media-frame__num{
  position:absolute;right:14px;bottom:10px;z-index:2;
  font-family:var(--font-num);font-weight:700;
  font-size:clamp(1.6rem,4vw,2.8rem);line-height:1;
  color:var(--paper);opacity:.92;
}

/* ---------- 11. 分段切换 ---------- */
.tabs{display:grid;gap:20px}
.tab-list{
  display:flex;gap:6px;
  border-bottom:3px solid var(--stone);
  overflow-x:auto;
  scrollbar-width:thin;
}
.tab{
  padding:10px 18px;
  border:2px solid transparent;border-bottom:0;
  color:rgba(243,239,228,.66);
  font-weight:600;font-size:.94rem;white-space:nowrap;
  box-shadow:inset 0 0 0 0 var(--cyan);
  transition:background var(--ease),color var(--ease),box-shadow var(--ease);
}
.tab:hover{color:var(--paper);background:rgba(30,68,56,.7)}
.tab[aria-selected="true"]{
  background:var(--paper);color:var(--ink);
  border-color:var(--stone);
  box-shadow:inset 0 4px 0 var(--cyan);
}
.tab-panel[hidden]{display:none}
.tab-panel{padding-top:4px}

/* ---------- 12. 折叠面板 ---------- */
.accordion{border:3px solid var(--stone);background:var(--moss)}
.accordion-item+.accordion-item{border-top:2px solid var(--stone)}
.accordion-trigger{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:15px 18px;text-align:left;
  font-weight:600;font-size:.98rem;color:var(--paper);
  transition:background var(--ease);
}
.accordion-trigger:hover{background:rgba(14,20,18,.4)}
.accordion-trigger::after{
  content:"+";
  font-family:var(--font-num);font-size:1.1rem;color:var(--cyan);
  flex:0 0 auto;
}
.accordion-trigger[aria-expanded="true"]::after{content:"–"}
.accordion-panel{padding:0 18px 18px;color:var(--paper-dim);font-size:.95rem}
.accordion-panel[hidden]{display:none}

/* ---------- 13. 横向看台条 ---------- */
.swipe-strip{
  display:flex;gap:16px;
  overflow-x:auto;
  padding:6px 4px 20px;
  scroll-snap-type:x proximity;
  scrollbar-width:thin;
}
.swipe-strip > *{flex:0 0 min(288px,78%);scroll-snap-align:start}

/* ---------- 14. 面包屑 ---------- */
.breadcrumb{padding:18px 0 0}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb-item{display:flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--paper-dim)}
.breadcrumb-item+.breadcrumb-item::before{content:"/";color:var(--stone)}
.breadcrumb-link{color:var(--cyan)}
.breadcrumb-link:hover{text-decoration:underline}

/* ---------- 15. 显现动效 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 16. 返回顶部 ---------- */
.back-to-top{
  position:fixed;right:20px;bottom:20px;z-index:70;
  width:48px;height:48px;
  display:grid;place-items:center;
  background:var(--orange);color:var(--ink);
  border:2px solid var(--ink);
  box-shadow:var(--shadow-hard-sm);
  font-family:var(--font-num);font-weight:700;
  opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease),transform var(--ease);
}
.back-to-top[data-visible]{opacity:1;visibility:visible}
.back-to-top:hover{transform:translateY(-3px)}

/* ---------- 17. 滚动进度 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;z-index:80;
  width:100%;height:3px;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--yellow) 55%,var(--orange) 100%);
  pointer-events:none;
}

/* ---------- 18. 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--deep);
  border-bottom:3px solid var(--stone);
}
.header-rail{border-bottom:1px solid var(--line)}
.header-inner{
  display:grid;
  grid-template-columns:auto 1fr auto auto;
  align-items:center;
  gap:clamp(14px,1.8vw,30px);
  min-height:66px;
  padding:9px 0;
}
.skip-link{
  position:absolute;left:16px;top:-70px;z-index:120;
  background:var(--yellow);color:var(--ink);
  font-weight:700;font-size:.9rem;
  padding:10px 16px;
  border:2px solid var(--ink);
  transition:top var(--ease);
}
.skip-link:focus{top:12px}

.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  display:grid;place-items:center;
  width:42px;height:42px;flex:0 0 auto;
  background:var(--orange);color:var(--ink);
  border:2px solid var(--ink);
  box-shadow:3px 3px 0 rgba(0,0,0,.5);
  font-family:var(--font-display);font-weight:900;font-size:1.28rem;line-height:1;
}
.brand-line{
  display:block;
  font-family:var(--font-display);font-weight:800;
  font-size:1.06rem;letter-spacing:-.01em;line-height:1.15;
}
.brand-tagline{display:block;font-size:11px;letter-spacing:.14em;color:var(--cyan);margin-top:2px}

.primary-nav{display:flex;justify-content:flex-end}
.nav-list{display:flex;align-items:center;gap:4px;justify-content:flex-end;flex-wrap:wrap}
.nav-link{
  display:flex;align-items:center;gap:8px;
  padding:8px 12px;
  border:2px solid transparent;
  font-size:.92rem;font-weight:600;
  color:rgba(243,239,228,.82);
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.nav-link:hover{background:var(--moss);color:var(--paper);border-color:var(--stone)}
.nav-link[aria-current="page"]{background:var(--cyan);border-color:var(--cyan);color:var(--ink)}
.nav-index{font-family:var(--font-num);font-size:11px;letter-spacing:.04em;color:var(--cyan)}
.nav-link[aria-current="page"] .nav-index{color:rgba(14,20,18,.68)}
.nav-item--utility{margin-left:6px;padding-left:8px;border-left:2px solid var(--stone)}
.nav-link--utility{font-weight:500;color:rgba(243,239,228,.66)}

.header-status{
  display:flex;align-items:center;gap:9px;
  padding:6px 12px;
  background:rgba(30,68,56,.72);
  border:2px solid var(--stone);
  font-size:12px;letter-spacing:.06em;
  color:rgba(243,239,228,.86);
  white-space:nowrap;
}
.status-dot{
  width:8px;height:8px;flex:0 0 auto;border-radius:50%;
  background:var(--cyan);
  animation:pulse 2.6s ease-out infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(79,224,190,.55)}
  70%{box-shadow:0 0 0 9px rgba(79,224,190,0)}
  100%{box-shadow:0 0 0 0 rgba(79,224,190,0)}
}
.status-round{font-family:var(--font-num);font-weight:700;color:var(--orange)}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:8px 12px;
  border:2px solid var(--stone);
  background:rgba(14,20,18,.55);
  font-size:13px;font-weight:600;letter-spacing:.08em;
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan)}
.nav-toggle[aria-expanded="true"]{border-color:var(--cyan);color:var(--cyan);background:rgba(14,20,18,.85)}
.nav-toggle-bars{display:grid;gap:4px;width:18px}
.nav-toggle-bars span{display:block;height:2px;background:var(--cyan);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.header-stand{background:var(--ink);border-top:1px solid var(--line)}
.stand-inner{
  display:flex;align-items:center;gap:18px;
  min-height:38px;
  overflow-x:auto;
  scrollbar-width:none;
}
.stand-inner::-webkit-scrollbar{display:none}
.stand-label{
  flex:0 0 auto;
  font-size:11px;letter-spacing:.16em;font-weight:600;
  color:var(--stone);text-transform:uppercase;
}
.stand-list{display:flex;align-items:center;gap:6px;flex:0 0 auto}
.stand-link{
  display:inline-flex;align-items:center;
  padding:5px 12px;
  border:1px solid transparent;
  font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:var(--paper-dim);white-space:nowrap;
  transition:color var(--ease),background var(--ease),border-color var(--ease);
}
.stand-link:hover{color:var(--ink);background:var(--cyan);border-color:var(--cyan)}

/* ---------- 19. 页脚 ---------- */
.site-footer{
  margin-top:clamp(48px,8vw,96px);
  background:var(--deep);
  border-top:3px solid var(--stone);
}
.footer-inner{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1.5fr);
  gap:clamp(28px,4vw,64px);
  padding:clamp(36px,5vw,64px) 0;
}
.footer-brandline{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(1.3rem,2.4vw,1.7rem);
  letter-spacing:-.01em;
}
.footer-summary{margin-top:12px;max-width:34ch;font-size:.95rem;color:var(--paper-dim)}
.footer-region{
  margin-top:18px;
  display:inline-block;
  padding:4px 12px;
  border:2px solid var(--yellow);color:var(--yellow);
  font-size:12px;font-weight:600;letter-spacing:.14em;
}
.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
.footer-col-title{
  font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--cyan);
  padding-left:12px;
  border-left:3px solid var(--orange);
  margin-bottom:14px;
}
.footer-list{display:grid;gap:2px}
.footer-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 0;
  font-size:.94rem;color:rgba(243,239,228,.74);
  transition:color var(--ease),transform var(--ease);
}
.footer-link::before{
  content:"";width:8px;height:2px;flex:0 0 auto;
  background:var(--clay);
  transition:background var(--ease),width var(--ease);
}
.footer-link:hover{color:var(--paper);transform:translateX(2px)}
.footer-link:hover::before{background:var(--cyan);width:14px}
.footer-base{background:var(--ink);border-top:1px solid var(--line)}
.footer-base-inner{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;
  padding:18px 0;
  font-size:12.5px;color:rgba(243,239,228,.6);
}
.footer-contact{font-family:var(--font-num);letter-spacing:.01em}
.footer-legal{letter-spacing:.06em}

/* ---------- 20. 响应式 ---------- */
@media (max-width:1180px){
  .nav-link{padding:8px 9px;font-size:.86rem}
  .header-status{font-size:11px;padding:5px 10px}
}

@media (max-width:1023px){
  :root{--gutter:18px}
  .header-inner{
    grid-template-columns:1fr auto;
    grid-template-areas:
      "brand toggle"
      "status status";
    gap:8px 14px;
    padding:10px 0 12px;
  }
  .brand{grid-area:brand}
  .nav-toggle{grid-area:toggle;display:inline-flex;justify-self:end}
  .header-status{grid-area:status;justify-self:start}
  .primary-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex-direction:column;justify-content:flex-start;
    background:var(--deep);
    border-bottom:3px solid var(--stone);
    padding:10px var(--gutter) 20px;
    max-height:calc(100vh - 120px);
    overflow-y:auto;
  }
  .primary-nav[data-open]{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{width:100%;padding:12px 10px;border-left:3px solid transparent;font-size:.98rem}
  .nav-link:hover{border-left-color:var(--stone)}
  .nav-link[aria-current="page"]{border-left-color:var(--ink)}
  .nav-item--utility{margin-left:0;padding-left:0;border-left:0;border-top:1px solid var(--line);margin-top:6px;padding-top:6px}
  .grid--2,.grid--3,.grid--split{grid-template-columns:minmax(0,1fr)}
  .footer-inner{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:767px){
  body{font-size:16px}
  .brand-tagline{display:none}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-base-inner{flex-direction:column;font-size:12px}
  .footer-contact{font-family:var(--font-body)}
  .card{padding:20px}
  .filecard{padding:30px 18px 20px}
  .swipe-strip > *{flex:0 0 82%}
  .media-frame{box-shadow:var(--shadow-hard-sm)}
}

@media (max-width:420px){
  .footer-cols{grid-template-columns:minmax(0,1fr)}
  .header-status{font-size:11px}
  .stat-value{font-size:2rem}
}

/* ---------- 21. 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;
  }
  .reveal{opacity:1;transform:none}
  .btn:hover,.back-to-top:hover,.footer-link:hover{transform:none}
}