/* ==========================================================================
   九博体育 /assets/site.css
   夜间训练场数据面板：悬浮胶囊外壳 + 纵向长卷章节 + 印刷叠层
   01 重置 · 02 变量 · 03 基座 · 04 排版 · 05 布局 · 06 组件
   07 头部 · 08 页脚 · 09 动效 · 10 响应式
   ========================================================================== */

/* 01 · 重置 */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd,fieldset{margin:0;padding:0}
ul,ol,li{list-style:none}
img,svg,video,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
hr{border:0;margin:0}

/* 02 · 变量 */
:root{
  --void:#050912;
  --night:#0A1526;
  --steel:#101F35;
  --grid:#1D3352;
  --cyan:#00E3E9;
  --cyan-deep:#00A6B4;
  --orange:#FF6A1A;
  --amber:#FFA23A;
  --white:#E9F2FF;
  --mist:#8CA3BF;
  --paper:#D8E2EE;
  --green:#3BE0A6;
  --red:#FF5C6E;

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

  --shell:1240px;
  --gutter:16px;
  --radius-capsule:999px;
  --radius-card:16px;
  --radius-panel:12px;
  --hairline:1px solid var(--grid);
  --ease:cubic-bezier(.2,.7,.2,1);
  --header-h:96px;
}

/* 03 · 基座 */
body{
  position:relative;
  background-color:var(--void);
  color:var(--white);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:repeating-linear-gradient(180deg,rgba(233,242,255,.05) 0 1px,transparent 1px 4px);
  opacity:.55;
}
body::after{
  content:"";
  position:fixed;
  left:0;
  right:0;
  height:34vh;
  z-index:0;
  pointer-events:none;
  background:linear-gradient(180deg,transparent 0%,rgba(0,227,233,.09) 50%,transparent 100%);
  opacity:.5;
  animation:scan-band 8s linear infinite;
}
@keyframes scan-band{
  from{transform:translateY(-40vh)}
  to{transform:translateY(140vh)}
}
main,#main-content{position:relative;z-index:1;display:block;scroll-margin-top:calc(var(--header-h) + 24px)}
::selection{background:rgba(0,227,233,.28);color:var(--white)}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}

/* 04 · 排版 */
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.05;
  color:var(--white);
}
h1{font-size:clamp(44px,7vw,88px)}
h2{font-size:clamp(28px,4vw,44px);line-height:1.12}
h3{font-size:24px;line-height:1.25;font-weight:800}
h4{font-size:18px;line-height:1.4;font-weight:800;letter-spacing:-.01em}
p{max-width:68ch}
strong{font-weight:800;color:var(--white)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.mono-label{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--mist);
}
.lede{font-size:clamp(17px,1.5vw,19px);line-height:1.8;color:var(--white)}
.dim{color:var(--mist)}

/* 05 · 布局 */
.container{width:min(var(--shell),calc(100% - 32px));margin-inline:auto}
.container--narrow{width:min(760px,calc(100% - 32px));margin-inline:auto}
.section{position:relative;padding:clamp(56px,8vw,104px) 0}
.section--night{background:var(--night);border-top:var(--hairline);border-bottom:var(--hairline)}
.section--steel{background:linear-gradient(180deg,var(--night) 0%,var(--void) 100%);border-top:var(--hairline)}
.section-head{display:grid;gap:14px;margin-bottom:clamp(28px,4vw,44px)}
.section-index{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  font-variant-numeric:tabular-nums;
  letter-spacing:.18em;
  color:var(--cyan);
}
.section-index::before,
.section-index::after{content:"";width:1px;height:15px;background:var(--grid)}
.section-title{font-size:clamp(28px,4vw,44px)}
.section-note{max-width:62ch;font-size:16px;color:var(--mist)}
.rule-line{height:1px;background:var(--grid);margin:clamp(24px,4vw,40px) 0;position:relative}
.rule-line::after{content:"";position:absolute;left:0;top:-1px;width:72px;height:3px;background:linear-gradient(90deg,var(--cyan),transparent)}

.grid{display:grid;gap:clamp(16px,2vw,24px);grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--75{grid-template-columns:7fr 5fr}
.grid--84{grid-template-columns:8fr 4fr}
[data-chapter]{scroll-margin-top:calc(var(--header-h) + 32px)}

/* 06 · 组件 */
/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border:1px solid transparent;
  border-radius:var(--radius-capsule);
  font-size:14.5px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:transform .18s var(--ease),background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn--accent{background:var(--orange);color:#170700;box-shadow:0 8px 22px rgba(255,106,26,.26)}
.btn--accent:hover{background:#ff7f38}
.btn--cyan{background:var(--cyan);color:#00191B}
.btn--cyan:hover{background:var(--cyan-deep)}
.btn--ghost{background:transparent;border-color:var(--grid);color:var(--white)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--quiet{background:rgba(0,227,233,.08);border-color:rgba(0,227,233,.35);color:var(--cyan)}
.btn--quiet:hover{background:rgba(0,227,233,.16)}

/* 标签 */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  border:1px solid var(--grid);
  border-radius:var(--radius-capsule);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--mist);
  white-space:nowrap;
}
.tag--cyan{color:var(--cyan);border-color:rgba(0,227,233,.45);background:rgba(0,227,233,.08)}
.tag--orange{color:var(--orange);border-color:rgba(255,106,26,.45);background:rgba(255,106,26,.1)}
.tag--amber{color:var(--amber);border-color:rgba(255,162,58,.45);background:rgba(255,162,58,.1)}
.tag--green{color:var(--green);border-color:rgba(59,224,166,.45);background:rgba(59,224,166,.1)}
.tag--red{color:var(--red);border-color:rgba(255,92,110,.45);background:rgba(255,92,110,.1)}

/* 卡片 / 面板 / 叠纸 */
.card{
  position:relative;
  padding:clamp(18px,2vw,24px);
  border:var(--hairline);
  border-radius:var(--radius-card);
  background:var(--steel);
}
.card--paper{
  background:linear-gradient(180deg,var(--paper) 0%,#BFCBDA 100%);
  border-color:#93A5BA;
  color:#0A1526;
}
.card--paper h3,.card--paper h4,.card--paper strong{color:#07101D}
.card--paper .dim,.card--paper p{color:#3B4C61}
.panel{
  padding:14px 18px;
  border:var(--hairline);
  border-radius:var(--radius-panel);
  background:var(--night);
}
.paper-stack{position:relative;padding:8px}
.paper-stack::before,
.paper-stack::after{
  content:"";
  position:absolute;
  inset:0;
  border:var(--hairline);
  border-radius:var(--radius-card);
  background:var(--steel);
  z-index:0;
}
.paper-stack::before{transform:rotate(-1.1deg) translate(-6px,6px);opacity:.55}
.paper-stack::after{transform:rotate(.8deg) translate(8px,10px);opacity:.28}
.paper-stack > *{position:relative;z-index:1}

/* 列表 */
.list-tick li{position:relative;padding-left:22px;margin-bottom:9px;color:var(--mist);max-width:66ch}
.list-tick li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:7px;
  height:7px;
  border:1px solid var(--cyan);
  transform:rotate(45deg);
}
.list-tick li strong{color:var(--white)}
.data-list li{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding:10px 0;
  border-bottom:1px dashed var(--grid);
  font-size:14px;
}
.data-list li:last-child{border-bottom:0}
.data-list .data-key{color:var(--mist)}
.data-list .data-val{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--white)}

/* 表格 */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.spec-table{
  min-width:520px;
  border:var(--hairline);
  border-radius:var(--radius-panel);
  overflow:hidden;
  font-family:var(--font-mono);
  font-size:13px;
  font-variant-numeric:tabular-nums;
}
.spec-table th,.spec-table td{padding:11px 14px;text-align:left;border-bottom:var(--hairline)}
.spec-table thead th{
  background:rgba(0,227,233,.06);
  color:var(--cyan);
  font-size:11.5px;
  letter-spacing:.1em;
  font-weight:600;
}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody tr:hover{background:rgba(0,227,233,.04)}

/* 面包屑 */
.breadcrumb{padding:18px 0 0}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--mist)}
.breadcrumb-item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb-item + .breadcrumb-item::before{content:"/";color:var(--grid)}
.breadcrumb-item a{color:var(--mist);transition:color .18s ease}
.breadcrumb-item a:hover{color:var(--cyan)}
.breadcrumb-item[aria-current="page"]{color:var(--white)}

/* 图片容器（页面阶段放置占位图） */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16/9;
  overflow:hidden;
  border:var(--hairline);
  border-radius:var(--radius-card);
  background:
    linear-gradient(135deg,rgba(0,227,233,.12) 0%,transparent 55%),
    repeating-linear-gradient(90deg,rgba(29,51,82,.6) 0 1px,transparent 1px 44px),
    repeating-linear-gradient(0deg,rgba(29,51,82,.6) 0 1px,transparent 1px 44px),
    var(--steel);
}
.media-frame > img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame__cap{
  position:absolute;
  left:12px;
  bottom:12px;
  padding:4px 9px;
  border:var(--hairline);
  border-radius:8px;
  background:rgba(5,9,18,.78);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--white);
}

/* 坐标索引 */
.index-rail{
  position:sticky;
  top:calc(var(--header-h) + 24px);
  display:flex;
  flex-direction:column;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
}
.index-link{display:inline-flex;align-items:center;gap:10px;padding:3px 0;color:var(--mist);transition:color .2s ease}
.index-link::before{content:"";width:18px;height:1px;background:var(--grid);transition:width .24s var(--ease),background-color .2s ease}
.index-link:hover{color:var(--white)}
.index-link:hover::before{width:28px;background:var(--cyan)}
.index-link[aria-current="true"]{color:var(--cyan)}
.index-link[aria-current="true"]::before{width:28px;background:var(--cyan)}

/* 可复制元素 */
.copy-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:3px 9px;
  border:1px dashed var(--grid);
  border-radius:8px;
  background:rgba(0,227,233,.05);
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.02em;
  color:var(--white);
  text-align:left;
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.copy-chip::after{content:"复制";font-size:10.5px;letter-spacing:.08em;color:var(--mist)}
.copy-chip:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(0,227,233,.1)}
.copy-chip[data-copied="true"]{border-color:var(--green);color:var(--green)}
.copy-chip[data-copied="true"]::after{content:"已复制";color:var(--green)}

/* 07 · 头部 */
.skip-link{
  position:fixed;
  left:16px;
  top:-80px;
  z-index:130;
  padding:10px 18px;
  border-radius:var(--radius-capsule);
  background:var(--cyan);
  color:#00191B;
  font-weight:700;
  font-size:14px;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:16px}

.site-header{
  position:sticky;
  top:0;
  z-index:100;
  padding:16px 0 15px;
  background:linear-gradient(180deg,rgba(5,9,18,.96) 0%,rgba(5,9,18,.78) 62%,rgba(5,9,18,0) 100%);
}
.header-shell{
  width:min(var(--shell),calc(100% - 32px));
  margin-inline:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}

.capsule{
  border:var(--hairline);
  border-radius:var(--radius-capsule);
  background:linear-gradient(180deg,rgba(16,31,53,.94) 0%,rgba(10,21,38,.94) 100%);
  box-shadow:0 14px 34px rgba(0,0,0,.48),inset 0 1px 0 rgba(233,242,255,.05);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.capsule--brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  padding:7px 14px 7px 8px;
  transition:padding .24s var(--ease);
}
.brand{display:inline-flex;align-items:center;gap:10px;padding:2px}
.brand-mark{
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  flex:0 0 32px;
  border:1px solid rgba(0,227,233,.42);
  border-radius:10px;
  background:rgba(0,227,233,.1);
  font-family:var(--font-mono);
  font-size:15px;
  font-weight:700;
  color:var(--cyan);
  transition:width .24s var(--ease),height .24s var(--ease),flex-basis .24s var(--ease);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15px;font-weight:800;letter-spacing:-.01em;color:var(--white)}
.brand-sub{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.06em;color:var(--mist)}
.version-badge{
  padding:3px 8px;
  border:1px dashed rgba(255,162,58,.5);
  border-radius:8px;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.06em;
  color:var(--amber);
  white-space:nowrap;
}

.capsule--nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex:0 1 auto;
  padding:6px;
}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-item{display:flex}
.nav-link{
  display:inline-block;
  padding:8px 13px;
  border-radius:var(--radius-capsule);
  font-size:14px;
  font-weight:500;
  color:var(--mist);
  transition:color .18s ease,background-color .18s ease,box-shadow .18s ease,padding .24s var(--ease),font-size .24s var(--ease);
}
.nav-link:hover{color:var(--white);background:rgba(0,227,233,.08)}
.nav-link[aria-current="page"]{
  color:var(--cyan);
  background:rgba(0,227,233,.1);
  box-shadow:inset 0 0 0 1px rgba(0,227,233,.55);
}
.nav-toggle{display:none}
.nav-toggle-bars{position:relative;width:16px;height:2px;border-radius:2px;background:var(--cyan);box-shadow:0 -5px 0 var(--cyan),0 5px 0 var(--cyan)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars{background:transparent;box-shadow:0 -5px 0 var(--orange),0 5px 0 var(--orange)}
.nav-cta{flex:0 0 auto}

.site-header[data-compact] .capsule--brand{padding:4px 12px 4px 6px}
.site-header[data-compact] .brand-mark{width:28px;height:28px;flex-basis:28px}
.site-header[data-compact] .nav-link{padding:6px 10px;font-size:13.5px}

.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:1px;
  overflow:hidden;
  background:rgba(29,51,82,.8);
  pointer-events:none;
}
.scroll-progress-bar{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--orange) 100%);
  transition:transform .08s linear;
}

/* 08 · 页脚 */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(48px,7vw,96px);
  padding:clamp(40px,5vw,64px) 0 26px;
  border-top:var(--hairline);
  background:linear-gradient(180deg,var(--night) 0%,var(--void) 92%);
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;
  top:-1px;
  width:min(320px,48%);
  height:1px;
  background:linear-gradient(90deg,var(--cyan) 0%,transparent 100%);
}
.footer-grid{
  width:min(var(--shell),calc(100% - 32px));
  margin-inline:auto;
  display:grid;
  grid-template-columns:minmax(210px,1.4fr) repeat(3,minmax(104px,.8fr)) minmax(230px,1.3fr);
  gap:clamp(20px,3vw,40px);
}
.footer-brand{display:flex;flex-direction:column;gap:10px}
.brand--footer .brand-mark{width:36px;height:36px;flex-basis:36px;border-radius:11px}
.brand--footer .brand-name{font-size:17px}
.footer-tagline{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--cyan);
}
.footer-note{max-width:36ch;font-size:13px;line-height:1.7;color:var(--mist)}
.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-col-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--mist);
}
.footer-col-title::before{content:"";width:14px;height:1px;background:var(--cyan)}
.footer-list{display:flex;flex-direction:column;gap:8px}
.footer-link{
  display:inline-block;
  font-size:14px;
  color:var(--white);
  opacity:.78;
  transition:color .18s ease,opacity .18s ease,transform .18s var(--ease);
}
.footer-link:hover{color:var(--cyan);opacity:1;transform:translateX(3px)}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.contact-row{display:grid;grid-template-columns:42px 1fr;align-items:center;gap:10px}
.contact-label{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--mist)}
.contact-value{font-size:13.5px;line-height:1.6;color:var(--white);opacity:.86}
.footer-bottom{
  width:min(var(--shell),calc(100% - 32px));
  margin:clamp(30px,4vw,48px) auto 0;
  padding-top:18px;
  border-top:var(--hairline);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--mist);
}

/* 09 · 动效 */
.has-js [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
.has-js [data-reveal].is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  body::after{animation:none;opacity:.35;transform:translateY(20vh)}
  .has-js [data-reveal]{opacity:1;transform:none;transition:none}
  .btn,.footer-link,.nav-link,.copy-chip,.index-link::before{transition:none}
  .btn:hover{transform:none}
  .footer-link:hover{transform:none}
  .scroll-progress-bar{transition:none}
}

/* 10 · 响应式 */
@media (max-width:1100px) and (min-width:881px){
  .brand-sub{display:none}
  .nav-link{padding:7px 9px;font-size:13px}
  .nav-cta{padding:9px 15px;font-size:13.5px}
  .version-badge{display:none}
}

@media (max-width:880px){
  :root{--header-h:74px}
  body{padding-bottom:104px}
  .header-shell{width:calc(100% - 24px);gap:10px}
  .capsule--brand{padding:6px 12px 6px 7px}
  .version-badge{display:none}

  .capsule--nav{
    position:fixed;
    left:12px;
    right:12px;
    bottom:12px;
    top:auto;
    z-index:110;
    display:grid;
    grid-template-columns:1fr 1fr;
    align-items:stretch;
    gap:8px;
    padding:8px;
    border-radius:24px;
    box-shadow:0 -14px 36px rgba(0,0,0,.55),inset 0 1px 0 rgba(233,242,255,.06);
  }
  .has-js .nav-list{
    position:absolute;
    left:0;
    right:0;
    bottom:calc(100% + 12px);
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:6px;
    padding:10px;
    border:var(--hairline);
    border-radius:20px;
    background:rgba(10,21,38,.98);
    box-shadow:0 -18px 40px rgba(0,0,0,.5);
    opacity:0;
    visibility:hidden;
    transform:translateY(12px);
    transition:opacity .2s var(--ease),transform .24s var(--ease),visibility .24s linear;
  }
  .has-js .nav[data-open] .nav-list{opacity:1;visibility:visible;transform:none}
  .nav-item{display:block}
  .nav-link{display:block;text-align:center;padding:12px 10px;font-size:14px}
  .nav-toggle{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 10px;
    border:1px solid var(--grid);
    border-radius:16px;
    background:rgba(0,227,233,.07);
    font-size:14px;
    font-weight:700;
    color:var(--white);
  }
  .nav-toggle[aria-expanded="true"]{border-color:rgba(0,227,233,.6);color:var(--cyan)}
  .nav-cta{width:100%;padding:12px 10px;border-radius:16px}

  .grid--2,.grid--3,.grid--75,.grid--84{grid-template-columns:1fr}
  .grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .index-rail{position:static;flex-direction:row;flex-wrap:wrap;gap:14px;margin-bottom:20px}
}

@media (max-width:1000px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand,.footer-col--contact{grid-column:1 / -1}
  .footer-note{max-width:52ch}
}

@media (max-width:620px){
  body{font-size:15.5px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .contact-row{grid-template-columns:56px 1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}