/* ============================================================
   BSPORT赛事 · /assets/site.css
   夜间球场控制室 × 数据收藏台 / 共享外壳与基础组件
   ============================================================ */

:root{
  --ink:#0A2A24;
  --ink-2:#10382F;
  --carbon:#101214;
  --cyan:#33F1CF;
  --warm:#F5F2EA;
  --paper:#E9E4D8;
  --amber:#F0A93C;
  --blue:#4C86FF;
  --mute:#7E9A92;
  --alert:#E2604A;

  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-heading:"Noto Sans SC","Source Han Sans SC","PingFang SC",sans-serif;
  --font-data:"JetBrains Mono","IBM Plex Mono",ui-monospace,monospace;
  --font-body:"Inter","Noto Sans SC",system-ui,-apple-system,sans-serif;

  --wrap:1240px;
  --gutter:clamp(16px,4vw,48px);
  --radius:2px;
  --line:rgba(126,154,146,.28);
  --line-soft:rgba(126,154,146,.16);
  --line-strong:rgba(51,241,207,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:180px;
}
body{
  margin:0;
  background-color:var(--ink);
  background-image:
    radial-gradient(120% 70% at 82% -8%,rgba(51,241,207,.10),transparent 62%),
    radial-gradient(90% 60% at 4% 108%,rgba(76,134,255,.09),transparent 66%);
  background-repeat:no-repeat;
  color:var(--warm);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,video{display:block;max-width:100%;height:auto;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
a{color:inherit;text-decoration:none;}
table{border-collapse:collapse;width:100%;}
::selection{background:var(--cyan);color:#06231E;}

h1,h2{font-family:var(--font-display);font-weight:700;line-height:1.24;letter-spacing:.02em;}
h3,h4{font-family:var(--font-heading);font-weight:800;line-height:1.35;letter-spacing:.06em;}
h1{font-size:clamp(2rem,4.4vw,3.1rem);}
h2{font-size:clamp(1.5rem,3vw,2.2rem);}
h3{font-size:clamp(1.1rem,1.8vw,1.35rem);}
h4{font-size:1rem;}

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

/* ---------- 通用排版与布局 ---------- */
.mono,.num{font-family:var(--font-data);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.eyebrow{
  font-family:var(--font-data);
  font-size:.74rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
}
.container{width:min(100% - (2 * var(--gutter)),var(--wrap));margin-inline:auto;}
.section{padding-block:clamp(40px,7vw,88px);}
.section--tight{padding-block:clamp(24px,4vw,48px);}
.stack>*+*{margin-top:1.1em;}

.grid{display:grid;gap:var(--gap,24px);}
.grid--halves{grid-template-columns:1fr;}
@media (min-width:900px){
  .grid--halves{grid-template-columns:1fr 1fr;}
  .grid--split{grid-template-columns:3fr 9fr;}
}
@media (min-width:960px){
  .grid--split{grid-template-columns:3fr 9fr;}
}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:.5rem 1.2rem;
  margin-bottom:clamp(18px,3vw,34px);
  padding-bottom:.9rem;
  border-bottom:1px solid var(--line);
}
.section-head__index{font-family:var(--font-data);font-size:.76rem;letter-spacing:.2em;color:var(--cyan);}
.section-head__title{font-family:var(--font-display);font-size:clamp(1.4rem,2.6vw,2rem);letter-spacing:.02em;}

.surface-paper{background:var(--paper);color:#14100A;}
.surface-warm{background:var(--warm);color:#14100A;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.55em;
  padding:.72em 1.35em;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  font-family:var(--font-heading);
  font-weight:800;
  font-size:.86rem;
  letter-spacing:.12em;
  line-height:1.2;
  color:var(--warm);
  background:transparent;
  transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn:hover{transform:translateY(-2px);}
.btn--primary{background:var(--cyan);color:#06231E;border-color:var(--cyan);}
.btn--primary:hover{background:#6BF8E2;box-shadow:0 12px 26px -14px rgba(51,241,207,.8);}
.btn--ghost{color:var(--cyan);}
.btn--ghost:hover{background:rgba(51,241,207,.12);}
.btn--amber{background:var(--amber);color:#2A1A00;border-color:var(--amber);}
.btn--amber:hover{background:#F6BC61;}
.btn--quiet{border-color:var(--line);color:var(--paper);}
.btn--quiet:hover{border-color:var(--cyan);color:var(--cyan);}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.45em;
  font-family:var(--font-data);
  font-size:.76rem;
  letter-spacing:.04em;
  color:var(--mute);
}
.breadcrumb li{display:inline-flex;align-items:center;gap:.45em;}
.breadcrumb li+li::before{content:"/";color:rgba(126,154,146,.55);}
.breadcrumb a{color:var(--paper);transition:color .18s var(--ease);}
.breadcrumb a:hover{color:var(--cyan);}

/* ---------- 正文容器 ---------- */
.prose{max-width:74ch;}
.prose p+p{margin-top:1.05em;}
.prose h2{margin-top:2.2em;margin-bottom:.7em;}
.prose h3{margin-top:1.8em;margin-bottom:.6em;color:var(--warm);}
.prose strong{color:#fff;}
.prose em{color:var(--cyan);font-style:normal;}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(51,241,207,.45);}
.prose ul,.prose ol{margin-top:.9em;display:grid;gap:.5em;}
.prose ul li{position:relative;padding-left:1.1em;}
.prose ul li::before{content:"";position:absolute;left:0;top:.75em;width:6px;height:1px;background:var(--cyan);}
.prose ol{counter-reset:prose;}
.prose ol li{position:relative;padding-left:1.6em;}
.prose ol li::before{
  counter-increment:prose;content:counter(prose,decimal-leading-zero);
  position:absolute;left:0;top:.15em;font-family:var(--font-data);font-size:.78em;color:var(--cyan);
}

/* ---------- 卡片 / 标签 / 信息位 ---------- */
.card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:.6rem;
  padding:clamp(18px,2.4vw,28px) clamp(18px,2.4vw,28px) clamp(34px,3vw,44px);
  background:linear-gradient(158deg,#10382F 0%,#0C2C26 60%,#0B2721 100%);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:0 22px 44px -30px #000;}
.card__title{font-family:var(--font-heading);font-weight:800;font-size:clamp(1.05rem,1.7vw,1.3rem);letter-spacing:.06em;}
.card__text{color:rgba(233,228,216,.78);font-size:.94rem;}
.card__slot{
  position:absolute;
  inset-inline-end:12px;
  bottom:12px;
  display:inline-flex;
  align-items:center;
  gap:.4em;
  padding:.28em .7em;
  font-family:var(--font-data);
  font-variant-numeric:tabular-nums;
  font-size:.76rem;
  letter-spacing:.04em;
  border-radius:var(--radius);
  background:var(--amber);
  color:#2A1A00;
  border:1px solid rgba(0,0,0,.12);
}
.card__slot--quota{background:transparent;color:var(--amber);border-color:rgba(240,169,60,.6);}

.tag,.chip{
  display:inline-flex;
  align-items:center;
  gap:.4em;
  padding:.22em .7em;
  font-family:var(--font-heading);
  font-size:.76rem;
  font-weight:700;
  letter-spacing:.08em;
  line-height:1.6;
  color:var(--paper);
  background:rgba(51,241,207,.06);
  border:1px solid rgba(126,154,146,.35);
  border-radius:999px;
}
.chip--mono{font-family:var(--font-data);font-size:.72rem;letter-spacing:.04em;color:var(--cyan);border-color:rgba(51,241,207,.4);}

/* ---------- 图片容器基础（页面阶段放图） ---------- */
.figure{
  margin:0;
  background:linear-gradient(145deg,#0E332C,#081F1A);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}
.figure__frame{
  position:relative;
  aspect-ratio:16 / 10;
  display:grid;
  place-items:center;
  background-image:
    radial-gradient(70% 60% at 50% 40%,rgba(51,241,207,.14),transparent 70%),
    repeating-linear-gradient(90deg,rgba(126,154,146,.15) 0 1px,transparent 1px 44px);
}
.figure--wide .figure__frame{aspect-ratio:21 / 9;}
.figure--portrait .figure__frame{aspect-ratio:4 / 5;}
.figure__frame img{width:100%;height:100%;object-fit:cover;}
.figure__frame::after{
  content:"";
  position:absolute;
  inset:8px;
  border:1px solid rgba(51,241,207,.18);
  pointer-events:none;
}
.figure figcaption{
  padding:.8em 1em;
  font-family:var(--font-data);
  font-size:.74rem;
  letter-spacing:.06em;
  color:var(--mute);
  border-top:1px solid var(--line-soft);
}

/* ---------- 标签页组件 ---------- */
.tabs{display:block;}
.tabs__list{
  display:flex;
  flex-wrap:wrap;
  gap:.35rem;
  border-bottom:1px solid var(--line);
  margin-bottom:1.3rem;
}
.tabs__tab{
  padding:.62em 1em;
  margin-bottom:-1px;
  font-family:var(--font-heading);
  font-weight:800;
  font-size:.86rem;
  letter-spacing:.08em;
  color:var(--mute);
  border-bottom:2px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.tabs__tab:hover{color:var(--warm);}
.tabs__tab[aria-selected="true"]{color:var(--cyan);border-bottom-color:var(--cyan);}
.tabs__panel[hidden]{display:none;}

/* ---------- 折叠问答 ---------- */
.fold{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(16,56,47,.55);
  padding:.9em 1.1em;
  transition:border-color .18s var(--ease);
}
.fold+.fold{margin-top:.7rem;}
.fold[open]{border-color:var(--line-strong);}
.fold summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  cursor:pointer;
  list-style:none;
  font-family:var(--font-heading);
  font-weight:800;
  letter-spacing:.04em;
  color:var(--warm);
}
.fold summary::-webkit-details-marker{display:none;}
.fold summary::after{content:"+";font-family:var(--font-data);color:var(--cyan);}
.fold[open] summary::after{content:"–";}
.fold__body{padding-top:.85em;color:rgba(233,228,216,.82);font-size:.94rem;}

/* ---------- 呼吸点 / 徽标 ---------- */
.pulse-dot{
  display:inline-block;
  width:7px;
  height:7px;
  flex:none;
  border-radius:50%;
  background:var(--cyan);
  animation:pulse 3.2s ease-in-out infinite;
}
@keyframes pulse{
  0%,68%,100%{box-shadow:0 0 0 0 rgba(51,241,207,.55);opacity:1;}
  34%{box-shadow:0 0 0 7px rgba(51,241,207,0);opacity:.5;}
}
.micro-badge{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  padding:.32em .85em;
  font-family:var(--font-data);
  font-size:.72rem;
  letter-spacing:.08em;
  color:var(--amber);
  background:rgba(240,169,60,.09);
  border:1px solid rgba(240,169,60,.55);
  border-radius:999px;
}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:absolute;
  top:-72px;
  left:12px;
  z-index:300;
  padding:.7em 1.15em;
  background:var(--cyan);
  color:#06231E;
  font-family:var(--font-heading);
  font-weight:800;
  letter-spacing:.1em;
  border-radius:var(--radius);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:12px;}

/* ============================================================
   头部外壳
   ============================================================ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  color:var(--warm);
  background:linear-gradient(180deg,#0B2C26 0%,#0A2A24 70%,#092620 100%);
  border-bottom:1px solid rgba(51,241,207,.2);
  box-shadow:0 22px 48px -36px #000;
}
.header-rail{
  height:8px;
  background-image:repeating-linear-gradient(90deg,rgba(51,241,207,.45) 0 1px,transparent 1px 28px);
  opacity:.5;
}
.masthead-shell{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:clamp(10px,2.4vw,30px);
  width:min(100% - (2 * var(--gutter)),var(--wrap));
  margin-inline:auto;
  padding-block:clamp(12px,2vw,20px) clamp(10px,1.8vw,18px);
  border-bottom:1px solid var(--line-soft);
}
.masthead{
  display:grid;
  justify-items:center;
  gap:.3em;
  text-align:center;
  padding-inline:.4rem;
}
.masthead__name{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(1.55rem,3.6vw,2.8rem);
  letter-spacing:.16em;
  line-height:1.1;
  color:var(--warm);
  text-shadow:0 0 28px rgba(51,241,207,.18);
  transition:color .2s var(--ease);
}
.masthead:hover .masthead__name{color:#fff;}
.masthead__tagline{
  font-family:var(--font-data);
  font-size:.64rem;
  letter-spacing:.32em;
  color:var(--mute);
}
.masthead-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5rem 1rem;
  font-family:var(--font-data);
  font-size:.72rem;
  letter-spacing:.08em;
  color:var(--mute);
}
.masthead-meta--start{justify-self:start;}
.masthead-meta--end{justify-self:end;justify-content:flex-end;}
.meta-label{
  display:inline-flex;
  align-items:center;
  gap:.45em;
  padding:.24em .6em;
  color:var(--paper);
  border:1px solid rgba(126,154,146,.35);
  border-radius:var(--radius);
}
.meta-text{font-family:var(--font-data);font-size:.72rem;letter-spacing:.1em;color:var(--mute);}
.util-link{
  display:inline-flex;
  align-items:center;
  gap:.45em;
  padding:.24em .1em;
  color:var(--paper);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.util-link:hover,.util-link:focus-visible{color:var(--cyan);border-bottom-color:rgba(51,241,207,.6);}
.util-link--fav{color:var(--cyan);}

.nav-shell{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  width:min(100% - (2 * var(--gutter)),var(--wrap));
  margin-inline:auto;
  padding-block:8px 10px;
}
.nav-toggle{
  display:none;
  align-items:center;
  gap:.6em;
  padding:.55em .9em;
  color:var(--paper);
  border:1px solid rgba(51,241,207,.45);
  border-radius:var(--radius);
  font-family:var(--font-heading);
  font-weight:800;
  font-size:.8rem;
  letter-spacing:.16em;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}
.nav-toggle__bars{
  width:18px;
  height:12px;
  background-image:repeating-linear-gradient(180deg,var(--cyan) 0 2px,transparent 2px 5px);
}
.nav-toggle__text{line-height:1;}
.nav-toggle[aria-expanded="true"]{border-color:var(--cyan);color:var(--cyan);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background-image:repeating-linear-gradient(180deg,var(--amber) 0 2px,transparent 2px 5px);}

.site-nav{display:flex;justify-content:center;}
.nav-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:clamp(2px,1.4vw,18px);
}
.nav-list__item{display:flex;}
.nav-link,.nav-drawer-btn{
  display:inline-flex;
  align-items:center;
  gap:.42em;
  padding:.5em .38em;
  color:var(--paper);
  font-family:var(--font-heading);
  font-weight:700;
  font-size:.86rem;
  letter-spacing:.14em;
  line-height:1.4;
  border-bottom:2px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible,
.nav-drawer-btn:hover,.nav-drawer-btn:focus-visible{
  color:var(--cyan);
  border-bottom-color:rgba(51,241,207,.5);
}
.nav-link[aria-current="page"]{color:var(--cyan);border-bottom-color:var(--cyan);}
.nav-drawer-btn::after{
  content:"";
  width:6px;
  height:6px;
  margin-top:-3px;
  border-right:1.5px solid currentColor;
  border-bottom:1.5px solid currentColor;
  transform:rotate(45deg);
  transition:transform .18s var(--ease);
}
.nav-drawer-btn[aria-expanded="true"]{color:var(--cyan);border-bottom-color:var(--cyan);}
.nav-drawer-btn[aria-expanded="true"]::after{transform:rotate(-135deg);margin-top:2px;}
.nav-list__cta .nav-link{
  padding:.5em 1.05em;
  margin-inline-start:.4rem;
  color:#06231E;
  background:var(--cyan);
  border:1px solid var(--cyan);
  border-radius:var(--radius);
  letter-spacing:.12em;
}
.nav-list__cta .nav-link:hover,.nav-list__cta .nav-link:focus-visible{
  background:#6BF8E2;
  color:#06231E;
  border-color:#6BF8E2;
}
.nav-list__cta .nav-link[aria-current="page"]{
  background:#8DFBEA;
  color:#06231E;
  border-bottom-color:transparent;
}

/* ---------- 球队库置顶抽屉 ---------- */
.team-drawer{
  position:absolute;
  top:100%;
  left:50%;
  z-index:96;
  width:min(920px,calc(100vw - (2 * var(--gutter))));
  transform:translateX(-50%) translateY(-6px);
  opacity:0;
  pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.team-drawer[hidden]{display:none;}
.team-drawer[data-open]{opacity:1;transform:translateX(-50%) translateY(0);pointer-events:auto;}
.team-drawer__panel{
  position:relative;
  padding:clamp(16px,2.4vw,26px);
  background:#0C2C26;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  box-shadow:0 44px 80px -44px #000;
}
.team-drawer__panel::before{
  content:"";
  position:absolute;
  inset:6px 6px auto;
  height:2px;
  background:linear-gradient(90deg,var(--cyan),transparent 70%);
}
.team-drawer__head{padding-right:2.4rem;}
.team-drawer__eyebrow{
  font-family:var(--font-data);
  font-size:.72rem;
  letter-spacing:.22em;
  color:var(--cyan);
}
.team-drawer__title{
  margin-top:.4em;
  font-family:var(--font-display);
  font-size:clamp(1.05rem,2vw,1.4rem);
  letter-spacing:.02em;
  color:var(--warm);
}
.team-drawer__close{
  position:absolute;
  top:.7rem;
  right:.7rem;
  width:32px;
  height:32px;
  display:grid;
  place-items:center;
  font-family:var(--font-data);
  font-size:1rem;
  color:var(--paper);
  border:1px solid rgba(126,154,146,.4);
  border-radius:var(--radius);
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.team-drawer__close:hover{color:var(--cyan);border-color:var(--cyan);}
.team-drawer__body{margin-top:1rem;}
.drawer-group+.drawer-group{
  margin-top:1rem;
  padding-top:1rem;
  border-top:1px dashed rgba(126,154,146,.3);
}
.drawer-group__title{
  margin-bottom:.55rem;
  font-family:var(--font-data);
  font-size:.7rem;
  letter-spacing:.2em;
  color:var(--mute);
}
.chip-row{display:flex;flex-wrap:wrap;gap:.4rem;}
.drawer-links{display:grid;gap:.55rem;margin-top:1.1rem;}
@media (min-width:640px){
  .drawer-links{grid-template-columns:1fr 1fr;}
}
.drawer-link{
  display:flex;
  flex-direction:column;
  gap:.15em;
  padding:.7em .9em;
  background:rgba(51,241,207,.06);
  border:1px solid rgba(51,241,207,.3);
  border-radius:var(--radius);
  transition:transform .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.drawer-link:hover,.drawer-link:focus-visible{
  transform:translateY(-2px);
  background:rgba(51,241,207,.14);
  border-color:var(--cyan);
}
.drawer-link__label{font-family:var(--font-heading);font-weight:800;font-size:.9rem;letter-spacing:.08em;color:var(--warm);}
.drawer-link__note{font-family:var(--font-data);font-size:.72rem;letter-spacing:.03em;color:var(--mute);}

/* ---------- 滚动进度 ---------- */
.scroll-progress{
  position:absolute;
  left:0;
  bottom:-1px;
  width:0;
  height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--blue));
  box-shadow:0 0 14px rgba(51,241,207,.7);
  transition:width .1s linear;
}

/* ============================================================
   页脚外壳
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,110px);
  color:var(--paper);
  background:linear-gradient(180deg,#0B2C26 0%,#101214 84%);
  border-top:1px solid rgba(51,241,207,.25);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto;
  height:8px;
  background-image:repeating-linear-gradient(90deg,rgba(51,241,207,.4) 0 1px,transparent 1px 28px);
  opacity:.45;
}
.footer-inner{
  width:min(100% - (2 * var(--gutter)),var(--wrap));
  margin-inline:auto;
  padding-block:clamp(36px,5vw,64px) 26px;
}
.footer-legend{
  display:grid;
  gap:clamp(26px,4vw,48px);
  padding-bottom:clamp(24px,4vw,40px);
  border-bottom:1px solid rgba(126,154,146,.22);
}
@media (min-width:880px){
  .footer-legend{grid-template-columns:minmax(0,1.05fr) minmax(0,2fr);}
}
.footer-brand__mark{
  display:inline-block;
  font-family:var(--font-display);
  font-size:clamp(1.3rem,2.4vw,1.8rem);
  letter-spacing:.14em;
  color:var(--warm);
}
.footer-brand__mark:hover{color:var(--cyan);}
.footer-brand__summary{
  margin-top:.85rem;
  max-width:34ch;
  font-size:.92rem;
  color:rgba(233,228,216,.76);
}
.footer-brand__meta{
  margin-top:.9rem;
  font-family:var(--font-data);
  font-size:.72rem;
  letter-spacing:.16em;
  color:var(--cyan);
}
.footer-groups{
  display:grid;
  gap:clamp(18px,3vw,34px);
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
}
.footer-group__title{
  display:flex;
  align-items:center;
  gap:.55em;
  margin-bottom:.85rem;
  font-family:var(--font-heading);
  font-weight:800;
  font-size:.82rem;
  letter-spacing:.18em;
  color:var(--warm);
}
.legend-dot{width:8px;height:8px;flex:none;border-radius:50%;}
.legend-dot--cyan{background:var(--cyan);box-shadow:0 0 0 3px rgba(51,241,207,.14);}
.legend-dot--amber{background:var(--amber);box-shadow:0 0 0 3px rgba(240,169,60,.14);}
.legend-dot--blue{background:var(--blue);box-shadow:0 0 0 3px rgba(76,134,255,.14);}
.footer-group__list{display:grid;gap:.5rem;}
.footer-link{
  display:inline-block;
  font-size:.92rem;
  color:rgba(233,228,216,.9);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer-link:hover,.footer-link:focus-visible{color:var(--cyan);border-bottom-color:rgba(51,241,207,.6);}

.footer-base{
  display:grid;
  gap:.9rem;
  padding-top:clamp(20px,3vw,30px);
}
@media (min-width:820px){
  .footer-base{grid-template-columns:minmax(0,1fr) auto;align-items:end;}
}
.footer-contact-block{display:grid;gap:.3rem;}
.footer-contact{
  font-family:var(--font-data);
  font-variant-numeric:tabular-nums;
  font-size:.84rem;
  letter-spacing:.02em;
  color:var(--warm);
}
.footer-address{font-size:.82rem;color:rgba(233,228,216,.66);}
.footer-service{font-size:.82rem;color:var(--mute);}
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.55rem 1.15rem;
  font-family:var(--font-data);
  font-size:.74rem;
  letter-spacing:.04em;
  color:var(--mute);
}
.footer-copy{color:rgba(233,228,216,.7);}
.footer-icp{color:var(--mute);}
.footer-icp:hover,.footer-contact a:hover{color:var(--cyan);}

/* ============================================================
   显现（页面阶段用 data-reveal）
   ============================================================ */
html.js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
html.js [data-reveal].is-revealed{opacity:1;transform:none;}

/* ============================================================
   响应式：平板与手机
   ============================================================ */
@media (max-width:1100px){
  .masthead__tagline{letter-spacing:.24em;}
}

@media (max-width:900px){
  html{scroll-padding-top:150px;}
  .masthead-shell{
    grid-template-columns:1fr;
    justify-items:center;
    gap:.55rem;
    text-align:center;
    padding-block:14px 12px;
  }
  .masthead-meta--start,.masthead-meta--end{justify-self:center;justify-content:center;}
  .nav-shell{justify-content:space-between;gap:.8rem;padding-block:8px;}
  .nav-toggle{display:inline-flex;}
  .site-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    z-index:95;
    display:none;
    max-height:72vh;
    overflow:auto;
    padding:.4rem 0 1rem;
    background:#0A2A24;
    border-top:1px solid rgba(51,241,207,.22);
    border-bottom:1px solid rgba(51,241,207,.32);
    box-shadow:0 30px 60px -34px #000;
  }
  .site-nav[data-open]{display:block;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-list__item{width:100%;}
  .nav-link,.nav-drawer-btn{
    width:100%;
    justify-content:space-between;
    padding:.9em .2em;
    border-bottom:1px solid rgba(126,154,146,.18);
  }
  .nav-link[aria-current="page"],.nav-drawer-btn[aria-expanded="true"]{border-bottom-color:rgba(51,241,207,.5);}
  .nav-list__cta .nav-link{
    justify-content:center;
    margin:.8rem 0 0;
    border-bottom:0;
  }
  .team-drawer{
    left:0;
    right:0;
    width:100%;
    transform:translateY(-8px);
  }
  .team-drawer[data-open]{transform:translateY(0);}
  .team-drawer__panel{border-radius:0 0 var(--radius) var(--radius);}
  html:not(.js) .nav-toggle{display:none;}
  html:not(.js) .site-nav{position:static;display:block;max-height:none;box-shadow:none;}
}

@media (max-width:560px){
  body{font-size:15px;}
  .masthead__name{letter-spacing:.12em;}
  .masthead-meta{font-size:.68rem;gap:.4rem .7rem;}
  .meta-text{display:none;}
  .footer-legal{font-size:.7rem;}
  .card{padding-bottom:44px;}
}

/* ============================================================
   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;
  }
  .pulse-dot{animation:none;}
  .scroll-progress{transition:none;}
  html.js [data-reveal]{opacity:1;transform:none;}
  .btn:hover,.card:hover,.drawer-link:hover{transform:none;}
}