/* ==========================================================================
   红蓝电竞站 · 共享样式表 /assets/site.css
   结构：1 变量与重置 · 2 中文排版 · 3 布局 · 4 通用组件 · 5 页头 · 6 页脚
   7 响应式 · 8 焦点与动效降级
   ========================================================================== */

/* ---------- 1. 变量与重置 ---------- */
:root{
  --blue-deep:#0B1533;
  --blue-room:#12224D;
  --red:#FF2D46;
  --red-dark:#C4122F;
  --white:#F4F7FC;
  --mist:#DCE6F2;
  --cyan:#6FE3D4;
  --grid-blue:#2A3B66;
  --amber:#FFC24B;
  --ink:#1B2A4A;

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

  --wrap:1240px;
  --gutter:clamp(18px,4vw,56px);
  --header-h:68px;
  --header-offset:100px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--blue-deep);
  color:var(--white);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
hr{border:0}
main{display:block}
[id]{scroll-margin-top:var(--header-offset)}
::selection{background:var(--red);color:#fff}

/* ---------- 2. 中文排版 ---------- */
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  font-stretch:condensed;
  line-height:1.12;
  letter-spacing:-.018em;
}
h1{font-size:clamp(30px,5vw,60px)}
h2{font-size:clamp(24px,3.4vw,36px)}
h3{font-size:clamp(18px,2.2px + 1vw,24px)}
p{max-width:68ch}
strong{font-weight:700;color:var(--white)}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--red)}

.side-note{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.34em;
  text-transform:uppercase;
  color:rgba(220,230,242,.5);
}

.tag{
  display:inline-block;
  padding:3px 10px;
  border:1px solid currentColor;
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  line-height:1.7;
}
.tag--red{color:var(--red)}
.tag--cyan{color:var(--cyan)}
.tag--amber{color:var(--amber)}
.tag--ink{color:var(--ink)}

/* ---------- 3. 布局 ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(14px,2vw,28px);
}
.section{position:relative;padding-block:clamp(48px,7vw,96px)}
.section--room{background:var(--blue-room);color:var(--white)}
.section--light{background:var(--white);color:var(--ink)}
.section--light h1,.section--light h2,.section--light h3,.section--light h4{color:var(--ink)}
.section--light strong{color:var(--ink)}
.section--light .eyebrow{color:var(--red)}
.section--light .eyebrow::before{background:var(--ink)}
.section--light .side-note{color:rgba(27,42,74,.45)}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:clamp(24px,4vw,48px);
  padding-bottom:18px;
  border-bottom:1px solid var(--grid-blue);
}
.section--light .section-head{border-bottom-color:var(--mist)}

.divider{
  height:1px;
  background:var(--grid-blue);
  margin-block:clamp(28px,4vw,56px);
}
.section--light .divider{background:var(--mist)}

/* ---------- 4. 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border:1px solid transparent;
  font-family:var(--font-display);
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
  line-height:1.2;
  background:var(--blue-room);
  color:var(--white);
  transition:transform .16s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn--red{background:var(--red);border-color:var(--red);color:#fff}
.btn--red:hover{background:var(--red-dark);border-color:var(--red-dark)}
.btn--ghost{background:transparent;border-color:rgba(220,230,242,.35);color:var(--white)}
.btn--ghost:hover{border-color:var(--red);color:#fff;background:rgba(255,45,70,.12)}
.btn--light{background:var(--white);border-color:var(--white);color:var(--ink)}
.btn--light:hover{background:var(--mist);border-color:var(--mist)}
.btn--small{padding:9px 16px;font-size:13px}
.btn[aria-pressed="true"]{background:transparent;border-color:var(--cyan);color:var(--cyan)}

.card{
  position:relative;
  background:var(--blue-room);
  border:1px solid var(--grid-blue);
  padding:clamp(18px,2.4vw,28px);
  transition:transform .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.card:hover,.card:focus-within{
  transform:translateY(-2px);
  border-color:rgba(255,45,70,.65);
  box-shadow:0 12px 30px rgba(4,9,22,.45);
}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.card-title{font-family:var(--font-display);font-weight:800;font-size:19px;line-height:1.3;letter-spacing:-.01em}
.card-text{font-size:15px;line-height:1.75;color:rgba(244,247,252,.78)}
.card-foot{margin-top:16px;padding-top:12px;border-top:1px solid var(--grid-blue);font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:rgba(220,230,242,.55)}
.section--light .card{background:#fff;border-color:var(--mist);color:var(--ink);box-shadow:none}
.section--light .card-text{color:rgba(27,42,74,.82)}
.section--light .card-foot{border-top-color:var(--mist);color:rgba(27,42,74,.55)}

.data-table{width:100%;border-collapse:collapse;font-size:14px}
.data-table caption{
  text-align:left;
  padding-bottom:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:rgba(220,230,242,.55);
}
.data-table th,.data-table td{
  padding:10px 12px;
  border-bottom:1px solid var(--grid-blue);
  text-align:left;
  vertical-align:middle;
}
.data-table thead th{
  font-family:var(--font-mono);
  font-weight:400;
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
  border-bottom-color:rgba(111,227,212,.45);
}
.data-table tbody tr:hover{background:rgba(255,45,70,.08)}
.data-table .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.section--light .data-table th,.section--light .data-table td{border-bottom-color:var(--mist)}
.section--light .data-table thead th{color:var(--red-dark)}
.section--light .data-table tbody tr:hover{background:rgba(255,45,70,.06)}

.stat{display:flex;flex-direction:column;gap:2px}
.stat-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(22px,3vw,34px);
  line-height:1.1;
  color:var(--cyan);
}
.stat-label{font-size:12px;letter-spacing:.12em;color:rgba(220,230,242,.6)}
.section--light .stat-num{color:var(--red-dark)}
.section--light .stat-label{color:rgba(27,42,74,.6)}

.media-frame{
  position:relative;
  width:100%;
  aspect-ratio:16/9;
  overflow:hidden;
  border:1px solid var(--grid-blue);
  background:
    linear-gradient(135deg,rgba(255,45,70,.24),rgba(255,45,70,0) 58%),
    linear-gradient(320deg,rgba(111,227,212,.2),rgba(111,227,212,0) 62%),
    var(--blue-room);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(42,59,102,.65) 1px,transparent 1px),
    linear-gradient(90deg,rgba(42,59,102,.65) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.4;
  pointer-events:none;
}
.media-frame > img{position:relative;width:100%;height:100%;object-fit:cover;z-index:1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--wide{aspect-ratio:21/9}
.media-caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(220,230,242,.55);
}
.section--light .media-caption{color:rgba(27,42,74,.55)}

.breadcrumb{
  padding-block:14px;
  border-bottom:1px solid rgba(42,59,102,.65);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.breadcrumb-item{display:inline-flex;align-items:center;color:rgba(220,230,242,.58)}
.breadcrumb-item + .breadcrumb-item::before{content:"/";margin-right:8px;color:rgba(220,230,242,.28)}
.breadcrumb-link{color:var(--white);transition:color .16s var(--ease)}
.breadcrumb-link:hover{color:var(--red)}
.breadcrumb-item[aria-current="page"]{color:var(--cyan)}

[data-reveal]{
  opacity:0;
  transform:translateY(8px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none}

/* ---------- 5. 页头 ---------- */
.skip-link{
  position:fixed;
  top:-120px;
  left:16px;
  z-index:300;
  padding:10px 18px;
  background:var(--red);
  color:#fff;
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:12px}

.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:120;
  background-color:transparent;
  transition:background-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-solid{
  background-color:rgba(18,34,77,.97);
  box-shadow:0 1px 0 0 var(--grid-blue),0 14px 34px rgba(4,9,22,.42);
  backdrop-filter:blur(8px);
}

.header-meta{
  border-bottom:1px solid rgba(42,59,102,.45);
  background-color:rgba(11,21,51,.35);
  transition:background-color .24s var(--ease);
}
.site-header.is-solid .header-meta{background-color:transparent}
.header-meta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
  height:32px;
}
.meta-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  white-space:nowrap;
  color:rgba(220,230,242,.62);
}
.meta-item--mono{color:rgba(111,227,212,.82)}
.meta-dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--red);
  box-shadow:0 0 0 3px rgba(255,45,70,.18);
  animation:hl-pulse 2.6s ease-in-out infinite;
}
@keyframes hl-pulse{
  0%,100%{opacity:1}
  50%{opacity:.35}
}

.header-bar{display:block}
.header-inner{
  position:relative;
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:clamp(12px,2vw,26px);
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
  height:var(--header-h);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  justify-self:start;
  min-height:44px;
}
.brand-mark{position:relative;display:block;width:28px;height:28px;flex:0 0 auto}
.brand-mark-red,
.brand-mark-blue{position:absolute;inset:0;display:block}
.brand-mark-red{background:var(--red);clip-path:polygon(0 0,100% 0,0 100%)}
.brand-mark-blue{background:var(--cyan);clip-path:polygon(100% 0,100% 100%,0 100%);opacity:.92}
.brand:hover .brand-mark-red{background:var(--red-dark)}
.brand-name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:19px;
  letter-spacing:.01em;
  color:var(--white);
  white-space:nowrap;
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:rgba(111,227,212,.7);
  align-self:flex-end;
  padding-bottom:3px;
  white-space:nowrap;
}

.primary-nav{justify-self:center;min-width:0}
.nav-list{display:flex;align-items:center;gap:clamp(2px,1.1vw,18px)}
.nav-item{flex:0 0 auto}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 10px;
  font-size:15px;
  letter-spacing:.01em;
  white-space:nowrap;
  color:rgba(244,247,252,.82);
  transition:color .16s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:10px;
  right:10px;
  bottom:3px;
  height:2px;
  background:var(--red);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--white)}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--white)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-link[aria-current="page"]::before{
  content:"";
  position:absolute;
  top:6px;
  left:0;
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--red);
}

.header-tools{
  display:flex;
  align-items:center;
  gap:8px;
  justify-self:end;
}
.tool-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:38px;
  padding:8px 13px;
  border:1px solid rgba(220,230,242,.28);
  font-size:13px;
  letter-spacing:.05em;
  white-space:nowrap;
  color:rgba(244,247,252,.9);
  transition:border-color .16s var(--ease),color .16s var(--ease),background-color .16s var(--ease);
}
.tool-btn:hover{border-color:var(--red);color:#fff;background-color:rgba(255,45,70,.14)}
.tool-btn[aria-pressed="true"]{border-color:var(--cyan);color:var(--cyan);background-color:rgba(111,227,212,.1)}
.tool-btn--back{border-color:rgba(42,59,102,.9);color:rgba(220,230,242,.72)}

.back-tip{
  position:absolute;
  top:calc(100% + 8px);
  right:var(--gutter);
  z-index:8;
  width:min(300px,82vw);
  padding:14px 16px;
  background:var(--blue-room);
  border:1px solid var(--grid-blue);
  box-shadow:0 18px 42px rgba(4,9,22,.55);
}
.back-tip[hidden]{display:none}
.back-tip-text{font-size:13px;line-height:1.7;color:rgba(244,247,252,.82);max-width:none}
.back-tip-link{
  display:inline-block;
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--cyan);
  border-bottom:1px solid currentColor;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  justify-self:end;
  min-width:44px;
  min-height:44px;
  padding:8px 11px;
  border:1px solid rgba(220,230,242,.3);
  color:var(--white);
  transition:border-color .16s var(--ease),background-color .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--red);background-color:rgba(255,45,70,.12)}
.nav-toggle-icon{display:flex;flex-direction:column;gap:4px}
.nav-toggle-bar{
  display:block;
  width:18px;
  height:2px;
  background:currentColor;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle-label{font-size:12px;letter-spacing:.12em}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  background-color:rgba(220,230,242,.08);
  pointer-events:none;
}
.scroll-progress-bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--red) 0%,var(--red) 55%,var(--cyan) 100%);
  transition:width .12s linear;
}

/* ---------- 6. 页脚 ---------- */
.site-footer{
  position:relative;
  background-color:var(--blue-deep);
  color:var(--white);
  border-top:1px solid var(--grid-blue);
  overflow:hidden;
}
.footer-slice{
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:64px;
  background:linear-gradient(90deg,rgba(255,45,70,.22),rgba(111,227,212,.12) 60%,transparent 88%);
  clip-path:polygon(0 0,100% 0,100% 40%,0 100%);
  pointer-events:none;
}
.footer-inner{
  position:relative;
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding:clamp(40px,6vw,72px) var(--gutter) clamp(24px,3vw,36px);
}
.footer-top{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  padding-bottom:clamp(24px,3vw,36px);
  border-bottom:1px solid var(--grid-blue);
}
.footer-brand{display:flex;flex-direction:column;gap:12px}
.footer-logo{display:inline-flex;align-items:center;gap:11px;min-height:44px}
.footer-logo-text{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(20px,2.4vw,26px);
  letter-spacing:.01em;
  color:var(--white);
}
.footer-motto{font-size:14px;letter-spacing:.02em;color:rgba(220,230,242,.62);max-width:32ch}
.footer-save{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.footer-save-text{font-size:13px;color:rgba(220,230,242,.6);max-width:none}

.footer-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr)) minmax(220px,1.45fr);
  gap:clamp(20px,3vw,40px);
  padding-block:clamp(28px,4vw,44px);
  border-bottom:1px solid var(--grid-blue);
}
.footer-col{min-width:0}
.footer-title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-weight:400;
  font-size:11px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-link{
  display:inline-block;
  font-size:14px;
  color:rgba(244,247,252,.74);
  transition:color .16s var(--ease),transform .16s var(--ease);
}
.footer-link:hover{color:var(--white);transform:translateX(3px)}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.contact-line{
  display:flex;
  gap:10px;
  font-size:13px;
  line-height:1.7;
  color:rgba(244,247,252,.74);
  word-break:break-word;
}
.contact-key{
  flex:0 0 40px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  line-height:1.9;
  color:rgba(220,230,242,.42);
}

.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  padding-top:clamp(18px,2.4vw,26px);
}
.footer-note{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:rgba(220,230,242,.5);max-width:none}
.legal-links{display:flex;flex-wrap:wrap;gap:6px 20px}
.legal-link{
  font-size:12px;
  letter-spacing:.04em;
  color:rgba(220,230,242,.6);
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.legal-link:hover{color:var(--white);border-bottom-color:var(--red)}
.footer-icp{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(220,230,242,.45);
  max-width:none;
}

/* ---------- 7. 响应式 ---------- */
@media (max-width:1180px){
  .brand-sub{display:none}
  .nav-link{font-size:14px;padding:9px 8px}
  .tool-btn{padding:8px 11px;font-size:12px}
}

@media (max-width:1024px){
  :root{--header-h:60px;--header-offset:60px}
  .header-meta{display:none}
  .header-inner{grid-template-columns:1fr auto;height:var(--header-h)}
  .nav-toggle{display:inline-flex}
  .brand-name{font-size:17px}

  .primary-nav{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    left:auto;
    z-index:140;
    display:block;
    width:min(86vw,340px);
    height:100%;
    padding:88px 22px 104px;
    overflow-y:auto;
    background-color:var(--blue-room);
    border-left:1px solid var(--grid-blue);
    transform:translateX(104%);
    transition:transform .28s var(--ease);
  }
  .primary-nav[data-open]{transform:translateX(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{width:100%}
  .nav-link{display:block;padding:15px 8px;font-size:17px;border-bottom:1px solid rgba(42,59,102,.65)}
  .nav-link::after{display:none}
  .nav-link::before{display:none}
  .nav-link:hover,.nav-link:focus-visible{color:var(--red)}
  .nav-link[aria-current="page"]{color:var(--white);border-left:2px solid var(--red);padding-left:14px}

  .header-tools{
    position:fixed;
    right:0;
    bottom:0;
    left:auto;
    z-index:141;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    width:min(86vw,340px);
    padding:16px 22px calc(16px + env(safe-area-inset-bottom));
    background-color:var(--blue-room);
    border-left:1px solid var(--grid-blue);
    border-top:1px solid var(--grid-blue);
    transform:translateX(104%);
    transition:transform .28s var(--ease);
  }
  .primary-nav[data-open] ~ .header-tools{transform:translateX(0)}
  .tool-btn{min-height:42px;font-size:13px}

  .back-tip{position:fixed;top:calc(var(--header-h) + 8px);right:auto;left:max(12px,var(--gutter));width:min(78vw,300px)}

  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-col--contact{grid-column:1 / -1}
}

@media (max-width:720px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-col--contact{grid-column:auto}
  .footer-top{flex-direction:column;align-items:flex-start;gap:18px}
  .footer-save{width:100%}
  .footer-legal{flex-direction:column;align-items:flex-start;gap:10px}
  .data-table{font-size:13px}
  .data-table th,.data-table td{padding:9px 8px}
  p{max-width:none}
}

@media (max-width:380px){
  .brand-name{font-size:15px}
  .brand-mark{width:24px;height:24px}
  .nav-toggle-label{display:none}
}

/* ---------- 8. 焦点与动效降级 ---------- */
:focus{outline:none}
:focus-visible{
  outline:2px solid var(--red);
  outline-offset:2px;
  box-shadow:inset 0 0 0 2px var(--white);
}
.section--light :focus-visible{
  box-shadow:inset 0 0 0 2px #fff,0 0 0 2px rgba(27,42,74,.35);
}

@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]{opacity:1;transform:none}
  .btn:hover,.card:hover,.footer-link:hover{transform:none}
  .nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
  .scroll-progress-bar{transition:none}
}