/* ==========================================================================
   爱体育主站 · 共享样式 /assets/site.css
   深墨绿近单色体系 + 信号橙动作色 + 荧光青数据色
   ========================================================================== */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
#main-content{scroll-margin-top:128px}

/* ---------- 2. tokens ---------- */
:root{
  --ink-900:#0E3B2E;
  --ink-800:#14513D;
  --ink-600:#1E6B50;
  --ink-050:rgba(60,224,208,.08);

  --paper:#F5F1E8;
  --paper-200:#E4DED0;
  --paper-300:#EDE7DA;

  --signal:#FF6A1F;
  --signal-300:#FFB37A;
  --cyan:#3CE0D0;
  --cyan-100:#9BE9E0;

  --text:#17211D;
  --muted:#8A9A93;

  --line:rgba(23,33,29,.14);
  --line-dark:rgba(155,233,224,.22);
  --line-dark-strong:rgba(155,233,224,.42);

  --s1:8px; --s2:16px; --s3:24px; --s4:32px;
  --s5:48px; --s6:64px; --s7:96px; --s8:128px;

  --radius:3px;
  --cut:16px;
  --shell:1280px;

  --font-display:"Songti SC","Noto Serif SC","Source Han Serif SC",Georgia,"Times New Roman",serif;
  --font-sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
  --shell-pad:24px;
}

/* ---------- 3. base ---------- */
body{
  min-height:100vh;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{line-height:1.25;font-weight:700}
strong{font-weight:700}

/* ---------- 4. 排版 ---------- */
.display{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(2.25rem,5.4vw,4.5rem);
  line-height:1.06;
  letter-spacing:-.01em;
  color:var(--text);
}
.display--light{color:var(--paper)}
.section-title{
  font-family:var(--font-sans);
  font-weight:800;
  font-stretch:condensed;
  font-size:clamp(1.375rem,2.6vw,1.875rem);
  line-height:1.32;
  letter-spacing:.02em;
}
.lead{
  font-size:clamp(1.0625rem,1.5vw,1.2rem);
  line-height:1.7;
  color:var(--ink-800);
  max-width:34em;
}
.muted{color:var(--muted)}
.small{font-size:14px;line-height:1.65}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:var(--s1);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:none;
  color:var(--ink-600);
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--signal);flex:0 0 auto}
.section--dark .eyebrow{color:var(--cyan)}

.data{font-family:var(--font-mono);font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:0}
.data--mark{
  font-family:var(--font-mono);
  font-weight:600;
  font-variant-numeric:tabular-nums;
  box-shadow:inset 0 -.42em 0 rgba(60,224,208,.30);
  padding:0 .12em;
}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

.prose{font-size:17px;line-height:1.85;color:var(--text)}
.prose p{max-width:36em;margin-bottom:var(--s2)}
.prose p:last-child{margin-bottom:0}
.prose h2,.prose h3{margin:var(--s4) 0 var(--s2);font-size:1.2rem;letter-spacing:.02em}
.prose a{color:var(--ink-600);box-shadow:inset 0 -1px 0 currentColor}
.prose a:hover{color:var(--signal)}

/* ---------- 5. 布局容器 ---------- */
.wrap{width:min(var(--shell),100% - (var(--shell-pad) * 2));margin-inline:auto}
.wrap--narrow{width:min(760px,100% - (var(--shell-pad) * 2));margin-inline:auto}

.section{padding:var(--s7) 0}
.section--tight{padding:var(--s6) 0}
.section--dark{background:var(--ink-900);color:var(--paper)}
.section--dark .lead{color:var(--cyan-100)}
.section--dark .muted{color:rgba(155,233,224,.62)}
.section--paper{background:var(--paper-200)}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:var(--s3);
  flex-wrap:wrap;
  margin-bottom:var(--s4);
}
.section-head__meta{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--muted);
}

.grid{display:grid;gap:var(--s3)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}

.layout-rail{
  display:grid;
  grid-template-columns:minmax(0,1fr) 264px;
  gap:var(--s5);
  align-items:start;
}
.rail{
  display:flex;
  flex-direction:column;
  gap:var(--s2);
  font-size:13.5px;
  line-height:1.65;
  color:var(--muted);
  border-left:1px solid var(--line);
  padding-left:var(--s3);
}
.rail__item{display:block}
.rail__item + .rail__item{border-top:1px solid var(--line);padding-top:var(--s2)}

/* ---------- 6. 切角面板与卡片 ---------- */
.panel{
  position:relative;
  background:var(--paper-200);
  padding:var(--s3);
  border-radius:var(--radius);
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
}
.panel--ink{background:var(--ink-800);color:var(--paper)}
.panel--ink .muted{color:rgba(155,233,224,.6)}
.panel--outline{background:transparent;box-shadow:inset 0 0 0 1px var(--line)}
.panel--outline.panel--ink{box-shadow:inset 0 0 0 1px var(--line-dark)}

.card{
  position:relative;
  display:block;
  background:var(--paper-200);
  padding:var(--s3);
  border-radius:var(--radius);
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
  transition:transform .22s var(--ease),background-color .22s var(--ease);
}
.card:hover{transform:translateY(-2px);background:var(--paper-300)}
.card:focus-visible{outline:2px solid var(--signal);outline-offset:-4px}

/* ---------- 7. 标签与按钮 ---------- */
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  border-radius:var(--radius);
  border:1px solid var(--line);
  color:var(--ink-600);
  background:rgba(255,255,255,.5);
}
.chip--signal{border-color:rgba(255,106,31,.42);color:#C2450A;background:rgba(255,106,31,.12)}
.chip--cyan{border-color:rgba(60,224,208,.5);color:#0F5C53;background:rgba(60,224,208,.16)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 20px;
  font-family:var(--font-sans);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  line-height:1.2;
  border:1px solid transparent;
  border-radius:var(--radius);
  text-align:center;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn--signal{background:var(--signal);color:#FFF6F0}
.btn--signal:hover{background:var(--signal-300);color:var(--ink-900)}
.btn--ink{background:var(--ink-900);color:var(--paper)}
.btn--ink:hover{background:var(--ink-600)}
.btn--ghost{border-color:var(--line-dark-strong);color:var(--paper)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--quiet{border-color:var(--line);color:var(--text)}
.btn--quiet:hover{border-color:var(--ink-600);color:var(--ink-600)}
.btn--sm{padding:9px 14px;font-size:13.5px}

/* ---------- 8. 面包屑 ---------- */
.breadcrumbs{
  font-size:13px;
  color:var(--muted);
  padding:var(--s3) 0 0;
}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.breadcrumbs li{display:inline-flex;align-items:center;gap:6px}
.breadcrumbs li + li::before{content:"/";color:var(--line);margin-right:2px}
.breadcrumbs a{box-shadow:inset 0 -1px 0 transparent;transition:color .18s var(--ease),box-shadow .18s var(--ease)}
.breadcrumbs a:hover{color:var(--ink-600);box-shadow:inset 0 -1px 0 currentColor}
.breadcrumbs [aria-current="page"]{color:var(--text)}

/* ---------- 9. 图片容器 ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  --ratio:16 / 9;
  aspect-ratio:var(--ratio);
  background-color:var(--ink-800);
  background-image:repeating-linear-gradient(135deg,rgba(60,224,208,.16) 0 1px,transparent 1px 12px);
  border-radius:var(--radius);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%);
}
.media-frame img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.media-frame--wide{--ratio:21 / 9}
.media-frame--square{--ratio:1 / 1}
.media-frame--portrait{--ratio:3 / 4}
.media-frame__tag{
  position:absolute;
  z-index:3;
  top:12px;
  left:12px;
  padding:4px 9px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--ink-900);
  background:var(--cyan);
  border-radius:var(--radius);
}
.media-frame__caption{
  position:absolute;
  z-index:3;
  left:0;
  right:0;
  bottom:0;
  padding:14px 18px;
  font-size:13px;
  line-height:1.55;
  color:var(--paper);
  background:linear-gradient(to top,rgba(14,59,46,.94),rgba(14,59,46,0));
}

/* ---------- 10. 步骤路径 ---------- */
.steps{display:grid;gap:var(--s2);counter-reset:step}
.steps__item{
  position:relative;
  padding-left:64px;
  min-height:44px;
  border-left:1px solid var(--line);
  margin-left:11px;
  padding-bottom:var(--s2);
}
.steps__item:last-child{border-left-color:transparent;padding-bottom:0}
.steps__index{
  counter-increment:step;
  position:absolute;
  left:-1px;
  top:0;
  transform:translateX(-50%);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:24px;
  height:24px;
  padding:0 5px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:600;
  color:var(--ink-900);
  background:var(--cyan);
  border-radius:2px;
}
.steps__index::after{counter-reset:none}
.steps__title{font-weight:700;font-size:16.5px;letter-spacing:.02em}
.steps__text{font-size:14.5px;color:var(--muted);max-width:32em}

/* ---------- 11. 数据表 ---------- */
.data-table{font-size:15px}
.data-table caption{text-align:left;font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--muted);padding-bottom:var(--s1)}
.data-table th{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--muted);
  text-align:left;
  padding:10px 12px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.data-table td{padding:12px;border-bottom:1px solid var(--line);vertical-align:top}
.data-table tbody tr:nth-child(even){background:rgba(228,222,208,.45)}
.data-table tbody tr:hover{background:var(--ink-050)}
.section--dark .data-table th{color:rgba(155,233,224,.66);border-bottom-color:var(--line-dark)}
.section--dark .data-table td{border-bottom-color:var(--line-dark)}
.section--dark .data-table tbody tr:nth-child(even){background:rgba(155,233,224,.06)}
.section--dark .data-table tbody tr:hover{background:rgba(60,224,208,.12)}

/* ---------- 12. 折叠问答 ---------- */
.accordion{border-top:1px solid var(--line)}
.accordion__item{border-bottom:1px solid var(--line)}
.accordion__trigger{
  display:flex;
  width:100%;
  align-items:center;
  justify-content:space-between;
  gap:var(--s3);
  padding:20px 0;
  font-family:var(--font-sans);
  font-size:17px;
  font-weight:700;
  letter-spacing:.02em;
  text-align:left;
  transition:color .2s var(--ease);
}
.accordion__trigger:hover{color:var(--ink-600)}
.accordion__trigger[aria-expanded="true"]{color:var(--ink-600)}
.accordion__icon{
  position:relative;
  flex:0 0 auto;
  width:20px;
  height:20px;
  border:1px solid var(--line);
  border-radius:2px;
}
.accordion__icon::before,
.accordion__icon::after{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  width:10px;
  height:2px;
  background:var(--signal);
  transform:translate(-50%,-50%);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.accordion__icon::after{transform:translate(-50%,-50%) rotate(90deg)}
.accordion__trigger[aria-expanded="true"] .accordion__icon::after{transform:translate(-50%,-50%) rotate(0);opacity:0}
.accordion__panel{
  overflow:hidden;
  max-height:0;
  opacity:0;
  transition:max-height .18s var(--ease),opacity .12s var(--ease);
}
.accordion__panel[data-open="true"]{opacity:1}
.accordion__panel-inner{
  padding:0 0 var(--s3);
  max-width:36em;
  font-size:15.5px;
  line-height:1.8;
  color:var(--ink-800);
}

/* ---------- 13. 显现动画 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none}

/* ---------- 14. 页头 ---------- */
.skip-link{
  position:absolute;
  left:var(--s2);
  top:-64px;
  z-index:120;
  padding:10px 16px;
  font-size:14px;
  font-weight:700;
  color:var(--ink-900);
  background:var(--cyan);
  border-radius:var(--radius);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:var(--s1)}

.site-header{
  position:sticky;
  top:0;
  z-index:80;
  color:var(--paper);
  background:rgba(14,59,46,.82);
  -webkit-backdrop-filter:blur(10px) saturate(130%);
  backdrop-filter:blur(10px) saturate(130%);
  border-bottom:1px solid var(--line-dark);
  transition:background-color .32s var(--ease),border-color .32s var(--ease),box-shadow .32s var(--ease);
}
.site-header[data-scrolled="true"]{
  background:var(--ink-900);
  border-bottom-color:var(--line-dark-strong);
  box-shadow:0 18px 34px -26px rgba(0,0,0,.9);
}

/* 排障提示条 */
.recovery-bar{
  background:rgba(10,44,34,.92);
  border-bottom:1px solid rgba(155,233,224,.12);
}
.recovery-bar__inner{
  width:min(var(--shell),100% - (var(--shell-pad) * 2));
  margin-inline:auto;
  display:flex;
  align-items:center;
  gap:var(--s2);
  padding:7px 0;
}
.recovery-bar__text{
  display:flex;
  align-items:center;
  gap:10px;
  flex:1 1 auto;
  min-width:0;
  font-size:13px;
  line-height:1.5;
  color:var(--cyan-100);
}
.recovery-bar__dot{
  flex:0 0 auto;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--cyan);
  animation:pulse-dot 2.4s ease-out infinite;
}
@keyframes pulse-dot{
  0%{box-shadow:0 0 0 0 rgba(60,224,208,.55)}
  70%{box-shadow:0 0 0 8px rgba(60,224,208,0)}
  100%{box-shadow:0 0 0 0 rgba(60,224,208,0)}
}
.recovery-bar__link{
  flex:0 0 auto;
  font-size:13px;
  font-weight:700;
  color:var(--signal-300);
  box-shadow:inset 0 -1px 0 currentColor;
  transition:color .18s var(--ease);
}
.recovery-bar__link:hover{color:var(--paper)}
.recovery-bar__toggle{
  flex:0 0 auto;
  padding:4px 10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--cyan-100);
  border:1px solid var(--line-dark);
  border-radius:var(--radius);
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.recovery-bar__toggle:hover{color:var(--paper);border-color:var(--cyan)}
.recovery-bar[data-collapsed="true"]{background:transparent;border-bottom-color:transparent}
.recovery-bar[data-collapsed="true"] .recovery-bar__inner{justify-content:flex-end;padding:4px 0}
.recovery-bar[data-collapsed="true"] .recovery-bar__text,
.recovery-bar[data-collapsed="true"] .recovery-bar__link{display:none}

/* 页头主体 */
.header-main__inner{
  width:min(var(--shell),100% - (var(--shell-pad) * 2));
  margin-inline:auto;
  display:flex;
  align-items:center;
  gap:clamp(16px,3vw,40px);
  padding:12px 0;
}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:12px;
  flex:0 0 auto;
  color:var(--paper);
}
.brand__mark{
  font-family:var(--font-display);
  font-weight:700;
  font-size:26px;
  letter-spacing:.04em;
  line-height:1.1;
}
.brand__tag{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--cyan-100);
  padding-left:12px;
  border-left:1px solid var(--line-dark);
}

.site-nav__list{display:flex;align-items:center;gap:2px}
.site-nav__link{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  color:rgba(245,241,232,.8);
  border-radius:var(--radius);
  transition:color .2s var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:4px;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s var(--ease);
}
.site-nav__link:hover{color:var(--paper)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--paper)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--signal)}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex:0 0 auto;
}
.count-chip{
  display:none;
  align-items:center;
  gap:6px;
  padding:6px 10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--cyan-100);
  border:1px solid var(--line-dark);
  border-radius:2px;
}
.count-chip__num{color:var(--cyan);font-weight:600}

.nav-toggle{
  display:none;
  width:44px;
  height:42px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line-dark);
  border-radius:var(--radius);
  color:var(--paper);
  transition:border-color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan)}
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  display:block;
  width:18px;
  height:2px;
  background:currentColor;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle__bars{position:relative}
.nav-toggle__bars::before,
.nav-toggle__bars::after{content:"";position:absolute;left:0}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-6px) rotate(-45deg)}

.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  pointer-events:none;
  background:transparent;
}
.scroll-progress__bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--cyan),var(--signal));
  transition:width .1s linear;
}

/* ---------- 15. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:var(--s8);
  background:var(--ink-900);
  color:var(--paper);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:4px;
  background:linear-gradient(90deg,var(--cyan) 0 22%,rgba(60,224,208,.18) 22% 78%,var(--signal) 78% 100%);
}
.footer-strip{background:var(--ink-800);border-bottom:1px solid var(--line-dark)}
.footer-strip__inner{
  width:min(var(--shell),100% - (var(--shell-pad) * 2));
  margin-inline:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--s2);
  flex-wrap:wrap;
  padding:14px 0;
}
.footer-strip__text{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  line-height:1.6;
  color:var(--cyan-100);
}
.footer-strip__link{
  font-size:14px;
  font-weight:700;
  color:var(--signal-300);
  box-shadow:inset 0 -1px 0 currentColor;
  transition:color .18s var(--ease);
}
.footer-strip__link:hover{color:var(--paper)}

.footer-main__inner{
  width:min(var(--shell),100% - (var(--shell-pad) * 2));
  margin-inline:auto;
  padding:var(--s6) 0 var(--s5);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:var(--s5) var(--s4);
}
.footer-brand__mark{
  display:block;
  font-family:var(--font-display);
  font-weight:700;
  font-size:24px;
  letter-spacing:.04em;
  margin-bottom:var(--s2);
}
.footer-brand__desc{
  font-size:14.5px;
  line-height:1.75;
  color:rgba(245,241,232,.72);
  max-width:30em;
}
.footer-icp{
  margin-top:var(--s2);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--muted);
}

.footer-col__title{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--cyan);
  margin-bottom:var(--s3);
  padding-bottom:var(--s1);
  border-bottom:1px solid var(--line-dark);
}
.footer-list{display:grid;gap:10px}
.footer-list__link{
  font-size:14.5px;
  color:rgba(245,241,232,.78);
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.footer-list__link:hover{color:var(--cyan);padding-left:4px}

.footer-contact__row{
  display:flex;
  flex-direction:column;
  gap:2px;
  font-size:14px;
  margin-bottom:var(--s2);
}
.footer-contact__key{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.12em;
  color:var(--muted);
}
.footer-contact__val{color:rgba(245,241,232,.88);line-height:1.6;overflow-wrap:anywhere}
.footer-contact__val[data-mono]{font-family:var(--font-mono);letter-spacing:.02em;color:var(--cyan-100)}

.footer-base{border-top:1px solid var(--line-dark);background:rgba(10,44,34,.6)}
.footer-base__inner{
  width:min(var(--shell),100% - (var(--shell-pad) * 2));
  margin-inline:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--s2);
  flex-wrap:wrap;
  padding:var(--s3) 0;
  font-size:13px;
  color:var(--muted);
}
.footer-base__note{font-size:13px}

/* ---------- 16. 响应式 ---------- */
@media (min-width:1200px){
  .count-chip{display:inline-flex}
}

@media (max-width:1024px){
  :root{--shell-pad:20px}
  .brand__tag{display:none}
  .nav-toggle{display:inline-flex}

  .site-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    background:var(--ink-900);
    border-top:1px solid var(--line-dark);
    box-shadow:0 26px 44px -30px rgba(0,0,0,.95);
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    transition:max-height .34s var(--ease),visibility .34s var(--ease);
  }
  .site-nav[data-open="true"]{max-height:440px;visibility:visible;overflow-y:auto}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;padding:6px var(--shell-pad) var(--s2)}
  .site-nav__link{display:block;padding:14px 2px;font-size:16px;border-bottom:1px solid rgba(155,233,224,.14)}
  .site-nav__link::after{left:2px;right:auto;width:22px;bottom:12px}

  .section{padding:var(--s6) 0}
  .layout-rail{grid-template-columns:1fr;gap:var(--s4)}
  .rail{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:var(--s3)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--s4) var(--s3)}
}

@media (max-width:760px){
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .recovery-bar__text{display:none}
  .recovery-bar__inner{justify-content:space-between}
  .recovery-bar[data-collapsed="true"] .recovery-bar__inner{justify-content:flex-end}
  .brand__mark{font-size:22px}
  .header-main__inner{gap:12px}
  .footer-main__inner{padding:var(--s5) 0 var(--s4)}
  .section-head{align-items:flex-start}
  .media-frame__caption{padding:10px 12px;font-size:12.5px}
}

@media (max-width:560px){
  .grid--12{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .header-actions .btn--sm{padding:8px 12px;font-size:13px}
  .steps__item{padding-left:52px}
}

/* ---------- 17. 无障碍与动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal]{opacity:1 !important;transform:none !important}
  .card:hover{transform:none}
  .footer-list__link:hover{padding-left:0}
}