/* =========================================================
   冠军体育台 · 共享 Site Kit
   路径：/assets/site.css
   结构：令牌 → 重置 → 排版 → 通用组件 → 头部 → 页脚 → 动效 → 响应式
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root{
  /* 自然矿物 + 夜场色谱 */
  --ink:#061A15;
  --ink-2:#0C2A22;
  --moss:#2E5B4A;
  --stone:#8B9A91;
  --warm:#F4EDE1;
  --cream:#E8DFD0;
  --cyan:#35F2D0;
  --orange:#FF8A3D;
  --clay:#B86B4B;
  --glass:rgba(53,242,208,.12);

  --hair:rgba(139,154,145,.24);
  --hair-strong:rgba(139,154,145,.48);
  --cyan-line:rgba(53,242,208,.42);

  --header-h:62px;
  --edge:clamp(16px,4.2vw,44px);
  --maxw:1200px;
  --read:64ch;

  --font-display:"Arial Narrow","Helvetica Neue Condensed","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-body:"PingFang SC","Noto Sans SC","Helvetica Neue",Helvetica,Arial,"Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;

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

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{ box-sizing:border-box; }

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  -webkit-tap-highlight-color:rgba(53,242,208,.18);
}

body{
  margin:0;
  min-height:100vh;
  font-family:var(--font-body);
  font-size:1rem;
  font-weight:400;
  line-height:1.75;
  color:var(--warm);
  background-color:var(--ink);
  background-image:
    radial-gradient(110% 70% at 8% -8%, rgba(53,242,208,.10), transparent 58%),
    radial-gradient(85% 60% at 102% 2%, rgba(255,138,61,.075), transparent 56%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

/* 框架式压边：左侧常驻灯带 */
body::before{
  content:"";
  position:fixed;
  left:0; top:0; bottom:0;
  width:1px;
  background:linear-gradient(180deg,transparent,rgba(53,242,208,.45) 18%,rgba(53,242,208,.10) 72%,transparent);
  pointer-events:none;
  z-index:45;
}

img,svg,video{ display:block; max-width:100%; }
h1,h2,h3,h4,h5,p,ul,ol,dl,figure,blockquote{ margin:0; }
ul,ol{ padding:0; list-style:none; }
a{ color:inherit; }
button{ font:inherit; color:inherit; }
::selection{ background:rgba(53,242,208,.28); color:var(--cream); }
:where(section,[id],h2[id],h3[id]){ scroll-margin-top:calc(var(--header-h) + 20px); }

/* ---------- 3. 焦点与可访问性 ---------- */
:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:2px;
}
:focus:not(:focus-visible){ outline:none; }

.skip-link{
  position:fixed;
  left:var(--edge);
  top:-140px;
  z-index:200;
  display:inline-block;
  padding:12px 22px;
  background:var(--cyan);
  color:#04211A;
  font-size:.9rem;
  font-weight:600;
  letter-spacing:.04em;
  text-decoration:none;
  border-radius:2px;
  box-shadow:0 10px 30px rgba(53,242,208,.3);
  transition:top .22s var(--ease);
}
.skip-link:focus{ top:14px; }

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

/* ---------- 4. 排版与容器 ---------- */
.container{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--edge);
}

.section{ padding-block:clamp(40px,7vw,96px); }
.section--tight{ padding-block:clamp(28px,4vw,56px); }

.section__head{
  max-width:64ch;
  margin-bottom:clamp(22px,3.4vw,40px);
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin:0 0 16px;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:26px;
  height:1px;
  background:var(--cyan);
  box-shadow:0 0 10px rgba(53,242,208,.7);
}

.display-title{
  margin:0 0 18px;
  font-family:var(--font-display);
  font-weight:300;
  font-stretch:condensed;
  font-size:clamp(2.6rem,7vw,6.4rem);
  line-height:.94;
  letter-spacing:-.02em;
  color:var(--cream);
}

.section-title{
  margin:0 0 14px;
  font-family:var(--font-display);
  font-weight:400;
  font-stretch:condensed;
  font-size:clamp(1.8rem,3.4vw,3rem);
  line-height:1.08;
  letter-spacing:-.015em;
  color:var(--cream);
}

.lede{
  max-width:52ch;
  margin:0;
  font-size:clamp(.96rem,1.3vw,1.06rem);
  line-height:1.8;
  color:rgba(244,237,225,.78);
}

.prose{ max-width:var(--read); color:rgba(244,237,225,.86); }
.prose > * + *{ margin-top:1.15em; }
.prose h2{
  margin-top:2em;
  font-family:var(--font-display);
  font-weight:400;
  font-stretch:condensed;
  font-size:clamp(1.4rem,2.4vw,1.95rem);
  line-height:1.24;
  letter-spacing:-.01em;
  color:var(--cream);
}
.prose h3{
  margin-top:1.8em;
  font-size:1.06rem;
  font-weight:600;
  color:var(--cream);
  letter-spacing:.01em;
}
.prose ul{ padding-left:1.2em; }
.prose ul li{ position:relative; }
.prose ul li + li{ margin-top:.55em; }
.prose ul li::before{
  content:"";
  position:absolute;
  left:-1.2em;
  top:.78em;
  width:8px;
  height:1px;
  background:var(--cyan);
}
.prose ol{ padding-left:1.7em; counter-reset:step; }
.prose ol li{ counter-increment:step; position:relative; }
.prose ol li + li{ margin-top:.55em; }
.prose ol li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;
  left:-1.7em;
  font-family:var(--font-mono);
  font-size:.74rem;
  color:var(--cyan);
}
.prose a{
  color:var(--cyan);
  text-decoration:none;
  border-bottom:1px solid rgba(53,242,208,.32);
  transition:border-color .25s var(--ease);
}
.prose a:hover{ border-bottom-color:var(--cyan); }
.prose strong{ color:var(--cream); font-weight:600; }

/* ---------- 5. 网格与面板 ---------- */
.grid{ display:grid; gap:clamp(16px,2.4vw,28px); }
.grid--2{ grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); }
.grid--3{ grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); }

.panel{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  border:1px solid var(--hair);
  border-radius:3px;
  background:linear-gradient(160deg,rgba(12,42,34,.92),rgba(6,26,21,.94));
  transition:border-color .35s var(--ease), transform .35s var(--ease);
}
.panel::before{
  content:"";
  position:absolute;
  left:0; top:0;
  width:38px; height:2px;
  background:var(--cyan);
  opacity:.85;
}
.panel:hover{ border-color:var(--hair-strong); }
.panel--glass{
  background:var(--glass);
  border-color:var(--cyan-line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.panel__label{
  display:block;
  margin-bottom:10px;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--stone);
}
.panel__value{
  display:block;
  font-family:var(--font-mono);
  font-size:1.02rem;
  color:var(--cream);
  font-variant-numeric:tabular-nums;
}

/* ---------- 6. 统计与标签 ---------- */
.stat{ display:flex; flex-direction:column; gap:5px; }
.stat__value{
  font-family:var(--font-mono);
  font-size:clamp(1.6rem,3.4vw,2.6rem);
  font-weight:500;
  line-height:1;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.stat__label{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--stone);
}
.stat__delta{
  font-family:var(--font-mono);
  font-size:.72rem;
  color:var(--orange);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 11px;
  border:1px solid var(--hair);
  border-radius:999px;
  background:rgba(46,91,74,.22);
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.14em;
  color:var(--stone);
}
.tag::before{
  content:"";
  width:5px; height:5px;
  border-radius:50%;
  background:currentColor;
  opacity:.8;
}
.tag--live{ color:var(--orange); border-color:rgba(255,138,61,.45); background:rgba(255,138,61,.10); }
.tag--data{ color:var(--cyan); border-color:var(--cyan-line); background:rgba(53,242,208,.08); }

/* ---------- 7. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 24px;
  border:1px solid transparent;
  border-radius:2px;
  font-family:var(--font-body);
  font-size:.92rem;
  font-weight:500;
  letter-spacing:.05em;
  line-height:1.2;
  text-decoration:none;
  cursor:pointer;
  transition:background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease), transform .3s var(--ease);
}
.btn::after{
  content:"";
  width:14px; height:1px;
  background:currentColor;
  transition:width .3s var(--ease);
}
.btn:hover::after{ width:24px; }

.btn--primary{ background:var(--cyan); color:#04211A; font-weight:600; }
.btn--primary:hover{ background:#6ff8de; box-shadow:0 10px 30px rgba(53,242,208,.24); }

.btn--accent{ background:var(--orange); color:#231208; font-weight:600; }
.btn--accent:hover{ background:#ffa267; box-shadow:0 10px 30px rgba(255,138,61,.26); }

.btn--ghost{ border-color:var(--hair-strong); color:var(--cream); background:rgba(12,42,34,.55); }
.btn--ghost:hover{ border-color:var(--cyan); color:var(--cyan); background:rgba(53,242,208,.07); }

.btn--quiet{ padding-inline:0; color:var(--cyan); background:none; }
.btn--quiet:hover{ color:var(--cream); }

/* ---------- 8. 面包屑 ---------- */
.breadcrumb{
  padding-block:14px;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.1em;
  color:var(--stone);
}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.breadcrumb__item{ display:inline-flex; align-items:center; gap:8px; }
.breadcrumb__item + .breadcrumb__item::before{
  content:"/";
  color:var(--moss);
}
.breadcrumb__link{
  color:var(--stone);
  text-decoration:none;
  transition:color .25s var(--ease);
}
.breadcrumb__link:hover{ color:var(--cyan); }
.breadcrumb__item[aria-current="page"]{ color:var(--cream); }

/* ---------- 9. 图片容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16 / 9;
  overflow:hidden;
  border:1px solid var(--hair);
  border-radius:3px;
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(53,242,208,.14), transparent 58%),
    linear-gradient(150deg,var(--ink-2),#04120e 80%);
}
.media-frame__img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .8s var(--ease), opacity .6s var(--ease);
}
.media-frame:hover .media-frame__img{ transform:scale(1.03); }
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(244,237,225,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53,242,208,.08) 1px, transparent 1px);
  background-size:100% 34px, 34px 100%;
  opacity:.55;
  mix-blend-mode:screen;
}
.media-frame__caption{
  position:absolute;
  left:0; right:0; bottom:0;
  z-index:2;
  padding:28px 16px 12px;
  background:linear-gradient(0deg,rgba(6,26,21,.92),rgba(6,26,21,0));
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.14em;
  color:var(--cream);
}
.media-frame--wide{ aspect-ratio:21 / 9; }
.media-frame--tall{ aspect-ratio:4 / 5; }
.media-frame--square{ aspect-ratio:1 / 1; }

.figure{ margin:0; }
.figure__caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.06em;
  line-height:1.6;
  color:var(--stone);
}

/* ---------- 10. 轮次轨道 ---------- */
.rail{
  position:relative;
  display:flex;
  align-items:flex-start;
  gap:clamp(12px,2.6vw,30px);
  padding-block:26px;
  overflow-x:auto;
  scrollbar-width:thin;
  scrollbar-color:var(--moss) transparent;
  -webkit-overflow-scrolling:touch;
}
.rail::-webkit-scrollbar{ height:4px; }
.rail::-webkit-scrollbar-track{ background:rgba(46,91,74,.25); }
.rail::-webkit-scrollbar-thumb{ background:var(--moss); border-radius:2px; }
.rail::before{
  content:"";
  position:absolute;
  left:0; right:0;
  top:31px;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--hair-strong) 8%,var(--hair-strong) 92%,transparent);
  pointer-events:none;
}
.rail__node{
  position:relative;
  z-index:1;
  flex:0 0 auto;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:9px;
  padding:0 10px;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.14em;
  color:var(--stone);
  text-decoration:none;
  transition:color .3s var(--ease);
}
.rail__node::before{
  content:"";
  width:9px; height:9px;
  border-radius:50%;
  background:var(--ink-2);
  border:1px solid var(--hair-strong);
  transition:background .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.rail__node:hover{ color:var(--cream); }
.rail__node:hover::before{ border-color:var(--cyan); }
.rail__node.is-active{ color:var(--cyan); }
.rail__node.is-active::before{
  background:var(--cyan);
  border-color:var(--cyan);
  box-shadow:0 0 14px rgba(53,242,208,.75);
}
.rail__label{ white-space:nowrap; }

/* ---------- 11. 头部 / 框架式导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(6,26,21,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--hair);
}
.site-header::before{
  content:"";
  position:absolute;
  left:0; right:0; top:0;
  height:1px;
  background:linear-gradient(90deg,var(--cyan-line),rgba(53,242,208,0) 55%,rgba(255,138,61,.5));
  opacity:.6;
}

.site-header__frame{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,28px);
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--edge);
  min-height:var(--header-h);
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  text-decoration:none;
  color:var(--cream);
}
.brand__mark{
  position:relative;
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  flex:0 0 auto;
  border:1px solid var(--hair-strong);
  border-radius:50%;
  transition:border-color .35s var(--ease);
}
.brand__mark::before{
  content:"";
  width:9px; height:9px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 14px rgba(53,242,208,.85);
  animation:brand-pulse 3.4s var(--ease) infinite;
}
.brand__mark::after{
  content:"";
  position:absolute;
  inset:-5px;
  border-radius:50%;
  border:1px solid rgba(53,242,208,.22);
}
.brand:hover .brand__mark{ border-color:var(--cyan); }
@keyframes brand-pulse{
  0%,100%{ transform:scale(1); opacity:1; }
  50%{ transform:scale(.62); opacity:.65; }
}
.brand__text{ display:flex; flex-direction:column; gap:2px; }
.brand__name{
  font-family:var(--font-display);
  font-stretch:condensed;
  font-size:1.08rem;
  font-weight:600;
  letter-spacing:.16em;
  line-height:1.1;
  color:var(--cream);
}
.brand__tag{
  font-family:var(--font-mono);
  font-size:.6rem;
  letter-spacing:.2em;
  line-height:1.2;
  color:var(--stone);
}

/* 移动菜单按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-left:auto;
  padding:9px 14px;
  border:1px solid var(--hair-strong);
  border-radius:2px;
  background:rgba(12,42,34,.6);
  color:var(--cream);
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.16em;
  cursor:pointer;
  transition:border-color .3s var(--ease), color .3s var(--ease), background .3s var(--ease);
}
.nav-toggle:hover{ border-color:var(--cyan); color:var(--cyan); background:rgba(53,242,208,.08); }
.nav-toggle__bars{
  display:inline-flex;
  flex-direction:column;
  gap:3px;
  width:16px;
}
.nav-toggle__bars span{
  display:block;
  height:1.5px;
  width:100%;
  background:currentColor;
  border-radius:1px;
  transition:transform .26s var(--ease), opacity .26s var(--ease);
}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){ transform:translateY(4.5px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars span:nth-child(2){ opacity:0; }
.site-header[data-open] .nav-toggle__bars span:nth-child(3){ transform:translateY(-4.5px) rotate(-45deg); }
.site-header[data-open] .nav-toggle{ border-color:var(--cyan); color:var(--cyan); }

/* 主导航 */
.site-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:2px;
}
.site-nav__item{ display:flex; }
.site-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:10px 12px;
  border-radius:2px;
  font-size:.9rem;
  letter-spacing:.02em;
  color:var(--stone);
  text-decoration:none;
  transition:color .3s var(--ease), background .3s var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:12px; right:12px; bottom:5px;
  height:1px;
  background:var(--cyan);
  box-shadow:0 0 8px rgba(53,242,208,.7);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .34s var(--ease);
}
.site-nav__link:hover{ color:var(--cream); background:rgba(53,242,208,.06); }
.site-nav__link:hover::after{ transform:scaleX(1); }
.site-nav__link[aria-current="page"]{ color:var(--cyan); }
.site-nav__link[aria-current="page"]::after{ transform:scaleX(1); }
.site-nav__idx{
  font-family:var(--font-mono);
  font-size:.6rem;
  letter-spacing:.08em;
  color:rgba(139,154,145,.72);
  transition:color .3s var(--ease);
}
.site-nav__link:hover .site-nav__idx,
.site-nav__link[aria-current="page"] .site-nav__idx{ color:var(--cyan); }

/* 导航行动入口 */
.site-nav__cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-left:12px;
  padding:9px 17px;
  border:1px solid rgba(255,138,61,.5);
  border-radius:2px;
  background:rgba(255,138,61,.09);
  color:var(--orange);
  font-size:.85rem;
  letter-spacing:.05em;
  text-decoration:none;
  white-space:nowrap;
  transition:background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.site-nav__cta::after{
  content:"";
  width:12px; height:1px;
  background:currentColor;
  transition:width .3s var(--ease);
}
.site-nav__cta:hover{
  background:var(--orange);
  border-color:var(--orange);
  color:#231208;
  box-shadow:0 8px 26px rgba(255,138,61,.25);
}
.site-nav__cta:hover::after{ width:20px; }

/* 滚动进度刻度 */
.scroll-progress{
  position:absolute;
  left:0; bottom:-1px;
  display:block;
  width:100%;
  height:2px;
  background:linear-gradient(90deg,var(--cyan),#7cf9e2);
  box-shadow:0 0 14px rgba(53,242,208,.55);
  transform:scaleX(0);
  transform-origin:0 50%;
  pointer-events:none;
}

/* ---------- 12. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,120px);
  border-top:1px solid var(--hair);
  background:linear-gradient(180deg,rgba(12,42,34,.72),rgba(6,26,21,1) 78%);
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0; right:0; top:-1px;
  height:1px;
  background:linear-gradient(90deg,rgba(53,242,208,.5),rgba(53,242,208,0) 45%,rgba(184,107,75,.5));
  opacity:.7;
}

.site-footer__inner{
  display:grid;
  grid-template-columns:minmax(220px,1.2fr) minmax(0,1.7fr) minmax(240px,1fr);
  gap:clamp(26px,4vw,52px);
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding:clamp(34px,5vw,64px) var(--edge) clamp(26px,4vw,44px);
}

.site-footer__brand{ display:flex; flex-direction:column; gap:12px; }
.footer-brand{
  font-family:var(--font-display);
  font-stretch:condensed;
  font-size:1.42rem;
  font-weight:600;
  letter-spacing:.14em;
  line-height:1.1;
  color:var(--cream);
  text-decoration:none;
  transition:color .3s var(--ease);
}
.footer-brand:hover{ color:var(--cyan); }
.footer-brand__line{
  max-width:30ch;
  font-size:.88rem;
  line-height:1.75;
  color:rgba(244,237,225,.62);
}
.footer-brand__domain{
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.13em;
  color:var(--moss);
}

.footer-nav{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(18px,3vw,32px);
}
.footer-nav__group{ min-width:0; }
.footer-nav__title{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:.66rem;
  font-weight:500;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--stone);
}
.footer-nav__list{ display:flex; flex-direction:column; gap:9px; }
.footer-nav__link{
  display:inline-block;
  font-size:.88rem;
  line-height:1.5;
  color:rgba(244,237,225,.72);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .28s var(--ease), border-color .28s var(--ease);
}
.footer-nav__link:hover{ color:var(--cyan); border-bottom-color:var(--cyan-line); }

.footer-contact{ display:flex; flex-direction:column; }
.footer-contact__list{ display:flex; flex-direction:column; gap:14px; }
.footer-contact__item{ display:flex; flex-direction:column; gap:3px; }
.footer-contact__label{
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--moss);
}
.footer-contact__value{
  font-family:var(--font-mono);
  font-size:.82rem;
  line-height:1.6;
  word-break:break-word;
  color:var(--cream);
}
.footer-contact__note{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--hair);
  font-size:.78rem;
  line-height:1.7;
  color:rgba(139,154,145,.92);
}

.site-footer__base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 24px;
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding:18px var(--edge) 34px;
  border-top:1px solid var(--hair);
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.1em;
  color:var(--stone);
}
.site-footer__legal{ margin:0; }
.site-footer__links{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  margin-left:auto;
}
.site-footer__links .footer-nav__link{ font-family:var(--font-mono); font-size:.7rem; letter-spacing:.1em; }

/* ---------- 13. 滚动显现 ---------- */
html.js-ready [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .72s var(--ease), transform .72s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
  will-change:opacity, transform;
}
html.js-ready [data-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* ---------- 14. 响应式 ---------- */
@media (min-width:960px){
  :root{ --header-h:76px; }
  .site-header__frame{ gap:clamp(14px,2.4vw,32px); }
}

/* 中等桌面：压缩导航项，避免拥挤 */
@media (min-width:960px) and (max-width:1159px){
  .site-nav__link{ padding:9px 8px; font-size:.84rem; }
  .site-nav__link::after{ left:8px; right:8px; }
  .site-nav__cta{ padding:8px 12px; font-size:.78rem; margin-left:8px; }
  .brand__tag{ display:none; }
}

/* 平板与手机：抽屉式导航 */
@media (max-width:959px){
  .nav-toggle{ display:inline-flex; }

  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin-left:0;
    padding:8px var(--edge) 26px;
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
    background:rgba(6,26,21,.985);
    border-bottom:1px solid var(--hair);
    box-shadow:0 24px 48px rgba(0,0,0,.5);
  }
  .site-header[data-open] .site-nav{ display:flex; }

  .site-nav__list{ flex-direction:column; align-items:stretch; gap:0; }
  .site-nav__item{ display:block; }
  .site-nav__link{
    display:flex;
    align-items:baseline;
    gap:12px;
    padding:15px 4px;
    font-size:1.04rem;
    border-bottom:1px solid var(--hair);
    border-radius:0;
  }
  .site-nav__link::after{ display:none; }
  .site-nav__link[aria-current="page"]{
    color:var(--cyan);
    border-bottom-color:var(--cyan-line);
  }
  .site-nav__idx{ font-size:.66rem; }

  .site-nav__cta{
    justify-content:space-between;
    margin:20px 0 0;
    padding:14px 18px;
    font-size:.92rem;
  }

  .site-footer__inner{
    grid-template-columns:minmax(0,1fr) minmax(0,1fr);
    gap:30px;
  }
  .site-footer__brand{ grid-column:1 / -1; }
  .footer-contact{ grid-column:1 / -1; }
}

@media (max-width:599px){
  :root{ --edge:18px; }
  .brand__tag{ display:none; }
  .brand__name{ font-size:1rem; letter-spacing:.12em; }
  .brand__mark{ width:30px; height:30px; }

  .site-footer__inner{ grid-template-columns:minmax(0,1fr); }
  .footer-nav{ grid-template-columns:minmax(0,1fr) minmax(0,1fr); }

  .site-footer__base{ flex-direction:column; align-items:flex-start; gap:10px; }
  .site-footer__links{ margin-left:0; }

  .btn{ width:100%; }
  .btn--quiet{ width:auto; }
}

/* ---------- 15. 减少动态偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html.js-ready [data-reveal]{
    opacity:1;
    transform:none;
    transition:none;
  }
  .media-frame:hover .media-frame__img{ transform:none; }
  .scroll-progress{ transition:none; }
}