/* =========================================================
   星空体育 · 共享样式表 /assets/site.css
   深空底 · 星云洋红 · 电光青 · 暖橙
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink-void:#0B0820;
  --ink-orbit:#16113A;
  --ink-nebula:#241C5C;
  --magenta:#FF3D8B;
  --cyan:#35E0D6;
  --orange:#FF9A3C;
  --star-white:#F5F2FF;
  --haze:#A9A2D8;
  --quiet:#5C5588;
  --paper:#F2E7D5;
  --ink-brown:#20160F;

  --line-quiet:rgba(92,85,136,.5);
  --line-softer:rgba(92,85,136,.35);
  --line-cyan:rgba(53,224,214,.42);
  --line-magenta:rgba(255,61,139,.45);

  --font-head:"Noto Sans SC","Archivo Black","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell:min(1240px,calc(100% - 2.5rem));
  --cut:14px;
  --cut-sm:9px;
  --nav-break:900px;
  --radius-orb:50%;

  --ease:cubic-bezier(.22,.61,.36,1);
}

@media (max-width:600px){
  :root{--shell:calc(100% - 2rem)}
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:130px;
}
body{margin:0}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px}

/* ---------- 3. 基础排版与深空背景 ---------- */
body{
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--star-white);
  background:var(--ink-void);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* 星云辉光层 */
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(58% 46% at 10% 6%,rgba(53,224,214,.11),transparent 68%),
    radial-gradient(52% 42% at 90% 2%,rgba(255,61,139,.13),transparent 68%),
    radial-gradient(80% 60% at 50% 104%,rgba(36,28,92,.9),transparent 72%);
}
/* 星尘点阵层（缓慢漂移） */
body::after{
  content:"";
  position:fixed;
  inset:-12%;
  z-index:0;
  pointer-events:none;
  opacity:.42;
  background-image:radial-gradient(rgba(245,242,255,.3) 1px,transparent 1px);
  background-size:132px 132px;
  animation:star-drift 90s linear infinite;
}
@keyframes star-drift{
  from{transform:translate3d(0,0,0)}
  to{transform:translate3d(-66px,-44px,0)}
}

main,.page-main{position:relative;z-index:1}

h1,h2,h3,h4{
  font-family:var(--font-head);
  font-weight:900;
  letter-spacing:-.03em;
  line-height:1.14;
}
h1{font-size:clamp(2.6rem,7vw,6rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}
h3{font-size:clamp(1.25rem,2vw,1.6rem)}
h4{font-size:1.1rem;letter-spacing:-.01em}
p{margin-bottom:1.2em}
p:last-child{margin-bottom:0}
strong{font-weight:800;color:var(--star-white)}
::selection{background:var(--magenta);color:#fff}

.num,.stat__value,.footer__icp,.masthead__meta{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:600;
}
.num{letter-spacing:.02em}

/* ---------- 4. 布局工具 ---------- */
.shell{width:var(--shell);margin-inline:auto}

.grid{display:grid;gap:clamp(1rem,2.2vw,1.6rem)}
.grid--12{grid-template-columns:repeat(12,1fr)}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}
.span-9{grid-column:span 9}
.span-12{grid-column:span 12}

@media (max-width:900px){
  .grid--12{grid-template-columns:repeat(6,1fr)}
  .span-3,.span-4,.span-5{grid-column:span 3}
  .span-6,.span-7,.span-8,.span-9{grid-column:span 6}
}
@media (max-width:560px){
  .grid--12{grid-template-columns:1fr}
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-9,.span-12{grid-column:1 / -1}
}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:1rem;
  margin-bottom:clamp(1.2rem,3vw,2rem);
}
.section-head__title{margin:0}
.section-head__text{color:var(--haze);max-width:54ch;font-size:16px}

.kicker{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  font-size:12px;
  font-weight:700;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
}
.kicker::before{content:"";width:26px;height:2px;background:linear-gradient(90deg,var(--magenta),var(--cyan))}

.rule{
  height:1px;
  border:0;
  margin:clamp(1.6rem,4vw,2.8rem) 0;
  background:linear-gradient(90deg,transparent,var(--quiet),transparent);
}

.sr-only{
  position:absolute;
  width:1px;height:1px;
  margin:-1px;padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  clip-path:inset(50%);
  white-space:nowrap;
  border:0;
}

/* ---------- 5. 按钮与标签 ---------- */
.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  min-height:44px;
  padding:.6rem 1.4rem;
  font-family:var(--font-head);
  font-weight:800;
  font-size:14px;
  letter-spacing:.06em;
  color:var(--star-white);
  background:transparent;
  border:1px solid var(--line-cyan);
  clip-path:polygon(var(--cut-sm) 0,100% 0,100% calc(100% - var(--cut-sm)),calc(100% - var(--cut-sm)) 100%,0 100%,0 var(--cut-sm));
  cursor:pointer;
  transition:transform .22s var(--ease),background-color .22s,color .22s,border-color .22s,box-shadow .22s;
}
.btn:hover{transform:translateY(-2px)}
.btn--ghost{
  border-color:rgba(169,162,216,.55);
  color:var(--star-white);
}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--member{
  border-color:var(--line-magenta);
  background:linear-gradient(102deg,var(--magenta),#B229A8);
  color:#fff;
}
.btn--member:hover{
  border-color:var(--orange);
  box-shadow:0 16px 34px -20px rgba(255,61,139,.95);
}

.label{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  padding:.35rem .72rem;
  font-size:12px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
  border:1px solid var(--line-cyan);
  background:rgba(53,224,214,.07);
}
.label--magenta{color:var(--magenta);border-color:var(--line-magenta);background:rgba(255,61,139,.08)}
.label--orange{color:var(--orange);border-color:rgba(255,154,60,.45);background:rgba(255,154,60,.09)}

/* ---------- 6. 面板 / 媒体框 / 指标 / 正文 ---------- */
.panel{
  position:relative;
  padding:clamp(1.2rem,3vw,2rem);
  background:linear-gradient(158deg,rgba(36,28,92,.92),rgba(22,17,58,.94));
  border:1px solid var(--line-quiet);
  clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
  transition:border-color .24s,transform .24s var(--ease),box-shadow .24s;
}
.panel:hover,.panel:focus-within{
  border-color:var(--cyan);
  transform:translateY(-2px);
  box-shadow:0 22px 48px -34px rgba(53,224,214,.75);
}
.panel--flat{clip-path:none}
.panel--flat:hover{transform:none}
.panel--tilt{transform:rotate(-1.4deg)}
.panel--tilt:hover{transform:rotate(-1.4deg) translateY(-2px)}

.media-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line-quiet);
  background:linear-gradient(150deg,var(--ink-nebula),var(--ink-void) 72%);
  clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
}
.media-frame img,.media-frame video{width:100%;height:100%;object-fit:cover}
.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__caption{
  position:absolute;
  inset:auto 0 0 0;
  padding:.85rem 1rem;
  font-size:13px;
  color:var(--haze);
  background:linear-gradient(0deg,rgba(11,8,32,.94),transparent);
}

.stat{display:flex;flex-direction:column;gap:.25rem}
.stat__value{
  font-size:clamp(1.6rem,3vw,2.4rem);
  color:var(--star-white);
  line-height:1.2;
  transition:color .2s;
}
.stat:hover .stat__value{color:var(--orange)}
.stat__label{font-size:12px;letter-spacing:.16em;color:var(--haze);text-transform:uppercase}

.prose{
  max-width:72ch;
  font-size:17px;
  line-height:1.85;
  color:var(--haze);
}
.prose h2,.prose h3{color:var(--star-white);margin:1.8em 0 .6em}
.prose h2:first-child,.prose h3:first-child{margin-top:0}
.prose p{margin-bottom:1.2em}
.prose ul{list-style:disc;padding-left:1.3em;margin-bottom:1.2em}
.prose li{margin-bottom:.5em}
.prose--paper{
  max-width:none;
  padding:clamp(1.4rem,4vw,3rem);
  color:var(--ink-brown);
  background-color:var(--paper);
  background-image:radial-gradient(rgba(32,22,15,.055) 1px,transparent 1px);
  background-size:6px 6px;
  border:1px solid rgba(32,22,15,.16);
  clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
}
.prose--paper h2,.prose--paper h3{color:var(--ink-brown)}
.prose--paper strong{color:var(--ink-brown)}
.prose--paper a{color:#8A2B63;text-decoration:underline;text-underline-offset:3px}

.breadcrumb{width:var(--shell);margin-inline:auto;padding:18px 0 0}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:.35rem .7rem;font-size:13px;color:var(--haze)}
.breadcrumb__item{display:inline-flex;align-items:center;gap:.7rem}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--quiet)}
.breadcrumb__link:hover{color:var(--cyan)}

/* ---------- 7. 页头 · 居中刊头 ---------- */
.skip-link{
  position:fixed;
  top:12px;left:12px;
  z-index:200;
  padding:12px 20px;
  font-weight:800;
  font-size:14px;
  letter-spacing:.06em;
  color:var(--ink-void);
  background:var(--cyan);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transform:translateY(-200%);
  transition:transform .22s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:linear-gradient(180deg,rgba(11,8,32,.97),rgba(11,8,32,.88));
  border-bottom:1px solid var(--line-quiet);
  backdrop-filter:blur(12px);
  transition:box-shadow .3s;
}
.site-header[data-scrolled="true"]{box-shadow:0 22px 44px -34px rgba(0,0,0,.98)}

.scroll-progress{
  position:absolute;
  left:0;bottom:-1px;
  width:100%;height:2px;
  transform:scaleX(0);
  transform-origin:left center;
  background:linear-gradient(90deg,var(--cyan),var(--magenta) 55%,var(--orange));
  pointer-events:none;
}

/* 报头 */
.masthead{position:relative;overflow:hidden}
.masthead::before{
  content:"";
  position:absolute;
  inset:auto -8% -70% -8%;
  height:130%;
  pointer-events:none;
  background:
    radial-gradient(42% 68% at 26% 0%,rgba(255,61,139,.17),transparent 70%),
    radial-gradient(40% 68% at 74% 8%,rgba(53,224,214,.15),transparent 70%);
}
.masthead__inner{
  position:relative;
  width:var(--shell);
  margin-inline:auto;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:1rem;
  padding:clamp(1rem,2.6vw,1.9rem) 0 clamp(.9rem,2vw,1.4rem);
  transition:padding .3s var(--ease);
}
.masthead__meta{
  margin:0;
  font-size:12px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--quiet);
  transition:opacity .3s;
}

.brand{
  position:relative;
  grid-column:2;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:.35rem;
  padding:.25rem .6rem;
  text-align:center;
}
.brand__orbit{
  position:absolute;
  top:50%;left:50%;
  width:min(330px,70vw);
  height:min(92px,17vw);
  transform:translate(-50%,-52%) rotate(-2.5deg);
  border:1px solid rgba(53,224,214,.3);
  border-radius:50%;
  pointer-events:none;
  transition:opacity .3s;
}
.brand__orbit::after{
  content:"";
  position:absolute;
  top:9%;right:6%;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--magenta);
  box-shadow:0 0 12px var(--magenta);
}
.brand__mark{
  position:relative;
  font-family:var(--font-head);
  font-weight:900;
  font-size:clamp(1.9rem,4.6vw,3.1rem);
  line-height:1.08;
  letter-spacing:-.035em;
  color:var(--star-white);
  text-shadow:0 0 14px rgba(53,224,214,.4),0 0 42px rgba(255,61,139,.24);
  transition:color .24s,font-size .3s var(--ease);
}
.brand:hover .brand__mark{color:var(--cyan)}
.brand__tagline{
  font-size:clamp(11px,.9vw,13px);
  letter-spacing:.2em;
  color:var(--haze);
  white-space:nowrap;
}
.masthead__actions{grid-column:3;display:flex;justify-content:flex-end}

/* 收拢态 */
.site-header[data-scrolled="true"] .masthead__inner{padding:.55rem 0 .5rem}
.site-header[data-scrolled="true"] .brand{flex-direction:row;align-items:baseline;gap:.85rem}
.site-header[data-scrolled="true"] .brand__mark{font-size:clamp(1.15rem,2.2vw,1.5rem)}
.site-header[data-scrolled="true"] .brand__tagline{display:none}
.site-header[data-scrolled="true"] .brand__orbit{opacity:0}
.site-header[data-scrolled="true"] .masthead__meta{opacity:.35}

/* 栏目条 */
.nav-bar{
  position:relative;
  border-top:1px solid var(--line-softer);
  background:linear-gradient(90deg,rgba(53,224,214,.07),transparent 32%,transparent 68%,rgba(255,61,139,.08));
}
.site-nav{width:var(--shell);margin-inline:auto}
.site-nav__list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:0 clamp(.5rem,2.4vw,2.2rem);
}
.site-nav__item{display:flex}
.site-nav__link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:54px;
  padding:0 6px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--haze);
  transition:color .22s;
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:6px;right:6px;bottom:14px;
  height:2px;
  background:linear-gradient(90deg,var(--magenta),var(--cyan));
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease);
}
.site-nav__link:hover,.site-nav__link:focus-visible{color:var(--star-white)}
.site-nav__link:hover::after,.site-nav__link:focus-visible::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--cyan)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}

/* 移动端浮动导航球 */
.nav-orb{display:none}

/* ---------- 8. 右侧竖向星图导航（宽屏） ---------- */
.star-nav{display:none}

@media (min-width:1200px){
  .star-nav{
    display:block;
    position:fixed;
    right:22px;
    top:50%;
    transform:translateY(-50%);
    z-index:50;
  }
  .star-nav::before{
    content:"";
    position:absolute;
    right:10px;
    top:18px;
    bottom:18px;
    width:1px;
    background:linear-gradient(180deg,transparent,rgba(92,85,136,.9) 18%,rgba(92,85,136,.9) 82%,transparent);
  }
  .star-nav__list{display:flex;flex-direction:column;gap:2px}
  .star-nav__item{display:flex;justify-content:flex-end}
  .star-nav__link{
    display:inline-flex;
    align-items:center;
    justify-content:flex-end;
    gap:10px;
    min-height:34px;
    padding:0 6px;
    font-size:12px;
    letter-spacing:.14em;
    color:var(--quiet);
    transition:color .2s;
  }
  .star-nav__dot{
    flex:none;
    width:10px;height:10px;
    border-radius:50%;
    border:1px solid var(--quiet);
    background:var(--ink-void);
    transition:background-color .2s,border-color .2s,box-shadow .2s;
  }
  .star-nav__text{
    opacity:0;
    transform:translateX(6px);
    transition:opacity .22s,transform .22s;
  }
  .star-nav__link:hover .star-nav__text,
  .star-nav__link:focus-visible .star-nav__text{opacity:1;transform:none}
  .star-nav__link:hover{color:var(--haze)}
  .star-nav__link[aria-current="page"],
  .star-nav__link.is-active{color:var(--cyan)}
  .star-nav__link[aria-current="page"] .star-nav__dot,
  .star-nav__link.is-active .star-nav__dot{
    background:var(--cyan);
    border-color:var(--cyan);
    box-shadow:0 0 12px var(--cyan);
  }
  .star-nav__link[aria-current="page"] .star-nav__text,
  .star-nav__link.is-active .star-nav__text{opacity:1;transform:none}
}

/* ---------- 9. 移动端抽屉与悬浮球 ---------- */
@keyframes orb-spin{to{transform:rotate(360deg)}}

@media (max-width:900px){
  html.nav-open{overflow:hidden}

  .site-nav{
    position:fixed;
    inset:0;
    width:100%;
    margin:0;
    z-index:80;
    padding:clamp(5rem,17vh,8rem) 1.5rem 3rem;
    overflow-y:auto;
    background:
      radial-gradient(120% 80% at 84% 0%,rgba(255,61,139,.2),transparent 62%),
      radial-gradient(96% 70% at 8% 100%,rgba(53,224,214,.16),transparent 62%),
      var(--ink-void);
    opacity:0;
    visibility:hidden;
    transform:translateY(-14px);
    transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
  }
  .site-nav[data-open="true"]{opacity:1;visibility:visible;transform:none}
  .site-nav__list{flex-direction:column;flex-wrap:nowrap;justify-content:flex-start;gap:0}
  .site-nav__item{border-bottom:1px solid var(--line-softer)}
  .site-nav__link{
    width:100%;
    min-height:62px;
    justify-content:space-between;
    padding:0 .3rem;
    font-size:1.06rem;
    font-weight:700;
    color:var(--star-white);
  }
  .site-nav__link::after{left:.3rem;right:auto;bottom:0;width:40%}
  .site-nav__link[aria-current="page"]{color:var(--cyan)}

  .nav-orb{
    position:fixed;
    right:18px;
    bottom:18px;
    z-index:90;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:3px;
    width:62px;height:62px;
    border-radius:50%;
    border:1px solid rgba(53,224,214,.55);
    background:radial-gradient(circle at 32% 26%,rgba(255,61,139,.92),rgba(36,28,92,.97) 72%);
    box-shadow:0 14px 34px -14px rgba(255,61,139,.75),0 0 0 6px rgba(11,8,32,.55);
    cursor:pointer;
    transition:transform .22s var(--ease),box-shadow .22s;
  }
  .nav-orb:hover{transform:translateY(-2px)}
  .nav-orb::after{
    content:"";
    position:absolute;
    inset:-9px;
    border-radius:50%;
    border:1px dashed rgba(169,162,216,.42);
    animation:orb-spin 30s linear infinite;
    pointer-events:none;
  }
  .nav-orb__bars{display:flex;flex-direction:column;align-items:center;gap:4px}
  .nav-orb__bars i{
    display:block;
    width:20px;height:2px;
    background:var(--star-white);
    transition:transform .25s var(--ease),opacity .25s;
  }
  .nav-orb__label{font-size:10px;letter-spacing:.2em;color:rgba(245,242,255,.85)}
  .nav-orb[aria-expanded="true"] .nav-orb__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .nav-orb[aria-expanded="true"] .nav-orb__bars i:nth-child(2){opacity:0}
  .nav-orb[aria-expanded="true"] .nav-orb__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
}

/* 手机上的紧凑报头 */
@media (max-width:760px){
  .masthead__inner{
    grid-template-columns:1fr auto;
    align-items:center;
    gap:.6rem;
    padding:.85rem 0 .8rem;
  }
  .masthead__meta{display:none}
  .brand{grid-column:1;align-items:flex-start;text-align:left;padding:0}
  .brand__mark{font-size:1.45rem;text-shadow:0 0 10px rgba(53,224,214,.4)}
  .brand__tagline{font-size:10px;letter-spacing:.13em;white-space:normal}
  .brand__orbit{display:none}
  .masthead__actions{grid-column:2}
  .btn--member{padding:.5rem 1rem;font-size:12.5px;letter-spacing:.04em}
  .site-header[data-scrolled="true"] .brand{flex-direction:column;align-items:flex-start;gap:.15rem}
  .site-header[data-scrolled="true"] .brand__tagline{display:none}
}

@media (max-width:600px){
  .brand__tagline{display:none}
}

/* ---------- 10. 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(3rem,8vw,6rem);
  border-top:1px solid var(--line-quiet);
  background:linear-gradient(180deg,rgba(22,17,58,.45),var(--ink-void) 46%);
  overflow:hidden;
}
.footer__glow{
  position:absolute;
  inset:-46% -10% auto -10%;
  height:86%;
  pointer-events:none;
  background:
    radial-gradient(38% 62% at 18% 100%,rgba(255,61,139,.2),transparent 70%),
    radial-gradient(34% 62% at 82% 100%,rgba(53,224,214,.17),transparent 70%);
}
.footer__inner{
  position:relative;
  width:var(--shell);
  margin-inline:auto;
  padding:clamp(2.4rem,6vw,4.5rem) 0 clamp(1.6rem,4vw,2.6rem);
  display:grid;
  grid-template-columns:1.5fr 1fr 1.5fr 1fr;
  gap:clamp(1.6rem,3vw,2.6rem);
  align-items:start;
}
@media (max-width:1000px){
  .footer__inner{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
  .footer__inner{grid-template-columns:1fr;gap:2rem}
}

.footer__logo{
  font-family:var(--font-head);
  font-weight:900;
  font-size:1.65rem;
  letter-spacing:-.03em;
  color:var(--star-white);
  margin-bottom:.35rem;
}
.footer__slogan{
  font-size:13px;
  letter-spacing:.24em;
  color:var(--magenta);
  margin-bottom:.85rem;
}
.footer__desc{font-size:15px;line-height:1.75;color:var(--haze);max-width:34ch}

.footer__title{
  position:relative;
  margin:0 0 1rem;
  padding-left:.85rem;
  font-family:var(--font-body);
  font-size:12px;
  font-weight:700;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer__title::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:6px;height:6px;
  background:var(--cyan);
  transform:translateY(-50%) rotate(45deg);
  box-shadow:0 0 10px var(--cyan);
}
.footer__list{display:flex;flex-direction:column;gap:.1rem}
.footer__link{
  display:inline-flex;
  align-items:center;
  min-height:38px;
  font-size:15px;
  color:var(--haze);
  transition:color .2s,transform .2s var(--ease);
}
.footer__link:hover{color:var(--star-white);transform:translateX(3px)}

.footer__contact-item{display:flex;flex-direction:column;gap:.1rem;padding:.35rem 0}
.footer__label{font-size:11px;letter-spacing:.2em;color:var(--quiet);text-transform:uppercase}
.footer__value{font-size:15px;color:var(--haze);line-height:1.6}
.footer__note{margin-top:.7rem;font-size:13px;line-height:1.7;color:var(--quiet)}

.copy-btn{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  min-height:44px;
  padding:0;
  text-align:left;
  color:var(--star-white);
  cursor:pointer;
}
.copy-btn__value{font-size:15px;word-break:break-all;transition:color .2s}
.copy-btn__hint{
  flex:none;
  padding:.15rem .42rem;
  font-size:11px;
  letter-spacing:.14em;
  color:var(--cyan);
  border:1px solid var(--line-cyan);
  transition:background-color .2s,color .2s;
}
.copy-btn:hover .copy-btn__value{color:var(--cyan)}
.copy-btn.is-copied .copy-btn__hint{background:var(--cyan);color:var(--ink-void)}

.footer__icp{
  display:inline-block;
  margin-top:.9rem;
  padding:.5rem .75rem;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--haze);
  border:1px solid var(--line-quiet);
}

.footer__base{
  position:relative;
  border-top:1px solid var(--line-softer);
  background:rgba(11,8,32,.7);
}
.footer__base-inner{
  width:var(--shell);
  margin-inline:auto;
  padding:1.1rem 0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.5rem 1.5rem;
  font-size:13px;
  color:var(--quiet);
}
.footer__copy{margin:0}
.footer__orbit{margin:0;letter-spacing:.18em}

/* ---------- 11. 显现与动效 ---------- */
html.js [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .4s var(--ease),transform .4s var(--ease);
}
html.js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 12. 可访问性与减弱动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important}
  body::after{animation:none}
  .nav-orb::after{animation:none}
  html.js [data-reveal]{opacity:1;transform:none;transition:none}
  .btn:hover,.panel:hover,.footer__link:hover,.nav-orb:hover{transform:none}
  .panel--tilt{transform:none}
}

@media print{
  body::before,body::after,.star-nav,.nav-orb,.scroll-progress{display:none}
  body{background:#fff;color:#000}
}