/* ==========================================================================
   开运体育 · 全站共享样式 /assets/site.css
   1. 设计令牌  2. Reset  3. 中文排版  4. 布局工具  5. 按钮与标签
   6. 基础组件  7. 页头    8. 页脚     9. 动效与降级
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --c-red:#C2182B;
  --c-red-deep:#9E1223;
  --c-gold:#D9A441;
  --c-gold-deep:#8A6415;
  --c-ink:#101613;
  --c-moss:#123B2E;
  --c-grass:#2E7D4F;
  --c-cyan:#19E0C8;
  --c-paper:#F6F1E7;
  --c-paper2:#EDE4D2;
  --c-night:#0B1B2B;
  --c-line:#C9C2B4;
  --c-violet:#5B3FD1;

  --ink:var(--c-ink);
  --ink-soft:#3A4741;
  --ink-mute:#5F6B63;
  --paper:var(--c-paper);
  --paper-2:var(--c-paper2);
  --line-strong:rgba(16,22,19,.24);
  --line-soft:rgba(16,22,19,.12);
  --light-line:rgba(246,241,231,.18);

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

  --wrap:1240px;
  --gutter:clamp(16px,4vw,48px);
  --gap:clamp(16px,2.4vw,32px);
  --header-h:112px;

  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-paper:4px 4px 0 rgba(16,22,19,.09);
  --shadow-paper-hover:7px 9px 0 rgba(16,22,19,.12);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  scroll-padding-top:calc(var(--header-h) + 20px);
  scroll-behavior:smooth;
}
body{
  margin:0;
  min-height:100%;
  background-color:var(--c-paper);
  background-image:
    radial-gradient(circle at 12% -4%,rgba(217,164,65,.14),transparent 52%),
    radial-gradient(circle at 96% 8%,rgba(194,24,43,.07),transparent 46%),
    linear-gradient(rgba(16,22,19,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(16,22,19,.035) 1px,transparent 1px);
  background-size:auto,auto,72px 72px,72px 72px;
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:clamp(15.5px,.55vw + 14px,17px);
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
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%;}
button,input,select,textarea{font:inherit;color:inherit;}
a{color:inherit;}
[hidden]{display:none !important;}
::selection{background:rgba(194,24,43,.85);color:#fff;}

:focus-visible{
  outline:2px solid currentColor;
  outline-offset:3px;
  box-shadow:0 0 0 5px rgba(25,224,200,.42);
}

/* ---------- 3. 中文排版 ---------- */
h1,h2,h3,h4{
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.16;
  text-wrap:balance;
  color:var(--c-ink);
}
h1{font-size:clamp(32px,4.2vw,56px);}
h2{font-size:clamp(25px,3vw,40px);}
h3{font-size:clamp(20px,2.1vw,26px);}
h4{font-size:clamp(17px,1.4vw,20px);letter-spacing:0;}
p{margin:0 0 1.05em;}
p:last-child{margin-bottom:0;}
strong,b{font-weight:700;}
small{font-size:.82em;}

.prose{
  max-width:42em;
  font-size:clamp(16px,1.05vw,17.5px);
  line-height:1.8;
  color:var(--ink-soft);
}
.prose > * + *{margin-top:.9em;}
.prose h2,.prose h3{color:var(--c-ink);margin-top:1.7em;margin-bottom:.5em;}
.prose p{margin:0;}
.prose ul{padding-left:0;}
.prose li{position:relative;padding-left:1.45em;}
.prose li + li{margin-top:.5em;}
.prose li::before{
  content:"";position:absolute;left:0;top:.78em;
  width:9px;height:2px;background:var(--c-red);
}
.prose a{
  color:var(--c-red);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.prose a:hover{text-decoration-thickness:2px;}
.prose strong{color:var(--c-ink);}

.eyebrow{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  line-height:1.5;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--c-red);
}
.tick-rule{
  display:block;
  height:9px;
  border:0;
  background-image:repeating-linear-gradient(90deg,var(--line-strong) 0 1px,transparent 1px 9px);
}
.visually-hidden{
  position:absolute !important;
  width:1px;height:1px;
  margin:-1px;padding:0;border:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);
  white-space:nowrap;
}

/* ---------- 4. 布局工具 ---------- */
.wrap{
  width:min(var(--wrap),100%);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(40px,6vw,88px);}
.page-body{padding-top:calc(var(--header-h) + clamp(24px,4vw,52px));}

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

/* ---------- 5. 按钮与标签 ---------- */
.btn{
  --btn-bg:var(--c-red);
  --btn-fg:#fff;
  --btn-bd:transparent;
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 22px;
  background:var(--btn-bg);
  color:var(--btn-fg);
  border:1px solid var(--btn-bd);
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:700;
  line-height:1.2;
  letter-spacing:.06em;
  text-decoration:none;
  cursor:pointer;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%);
  transition:background-color .18s var(--ease),color .18s var(--ease),
             border-color .18s var(--ease),transform .18s var(--ease),
             box-shadow .18s var(--ease);
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{
  --btn-bg:var(--c-red);
  --btn-fg:#fff;
  box-shadow:inset 0 0 0 1px rgba(217,164,65,.55);
}
.btn-primary:hover{--btn-bg:var(--c-red-deep);box-shadow:inset 0 0 0 1px rgba(217,164,65,.9),0 8px 18px -12px rgba(194,24,43,.9);}
.btn-ghost{
  --btn-bg:transparent;
  --btn-fg:var(--c-paper);
  --btn-bd:rgba(246,241,231,.42);
}
.btn-ghost:hover{--btn-bg:rgba(246,241,231,.1);--btn-bd:var(--c-gold);--btn-fg:#fff;}
.btn-block{display:flex;width:100%;}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 11px;
  background:rgba(246,241,231,.06);
  border:1px solid rgba(246,241,231,.26);
  color:rgba(246,241,231,.86);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  line-height:1.3;
  letter-spacing:.1em;
  text-decoration:none;
  white-space:nowrap;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.chip:hover{background:rgba(217,164,65,.18);border-color:var(--c-gold);color:#fff;}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 9px;
  border:1px solid currentColor;
  color:var(--c-red);
  background:rgba(194,24,43,.06);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  line-height:1.4;
  letter-spacing:.12em;
  text-transform:uppercase;
}
.tag--gold{color:var(--c-gold-deep);background:rgba(217,164,65,.18);}

/* ---------- 6. 基础组件 ---------- */
.skip-link{
  position:fixed;
  top:10px;left:10px;
  z-index:300;
  padding:11px 18px;
  background:var(--c-paper);
  color:var(--c-ink);
  border:1px solid var(--c-gold);
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:700;
  text-decoration:none;
  transform:translateY(-180%);
  transition:transform .18s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{transform:translateY(0);}

.breadcrumb{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ink-mute);
}
.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
}
.breadcrumb-item{display:inline-flex;align-items:center;gap:6px;}
.breadcrumb-item + .breadcrumb-item::before{
  content:"/";
  color:var(--c-gold);
  margin-right:2px;
}
.breadcrumb-link{
  color:inherit;
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.breadcrumb-link:hover{color:var(--c-red);border-bottom-color:currentColor;}
.breadcrumb-current{color:var(--c-ink);font-weight:500;}

.paper{
  position:relative;
  background:var(--c-paper2);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-paper);
}
.paper-lift{transition:transform .2s var(--ease),box-shadow .2s var(--ease);}
.paper-lift:hover{transform:translateY(-2px);box-shadow:var(--shadow-paper-hover);}

.panel-dark{
  position:relative;
  background:var(--c-moss);
  color:var(--c-paper);
  border:1px solid rgba(217,164,65,.32);
}
.panel-dark h1,.panel-dark h2,.panel-dark h3,.panel-dark h4{color:var(--c-paper);}
.panel-dark .prose{color:rgba(246,241,231,.82);}

.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  background:var(--c-moss);
  border:1px solid var(--line-strong);
}
.media-frame img{
  display:block;
  width:100%;height:100%;
  object-fit:cover;
}
.media-frame::after{
  content:"";
  position:absolute;inset:0;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(6,18,15,0) 46%,rgba(6,18,15,.55) 100%);
}
.media-frame[data-ratio="21:9"]{aspect-ratio:21/9;}
.media-frame[data-ratio="16:9"]{aspect-ratio:16/9;}
.media-frame[data-ratio="4:3"]{aspect-ratio:4/3;}
.media-frame[data-ratio="3:4"]{aspect-ratio:3/4;}
.media-frame[data-ratio="1:1"]{aspect-ratio:1/1;}
.media-caption{
  display:block;
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ink-mute);
}

.filter-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:36px;
  padding:8px 14px;
  background:transparent;
  border:1px solid var(--line-strong);
  color:var(--ink-soft);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.14em;
  text-transform:uppercase;
  cursor:pointer;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.filter-btn:hover{border-color:var(--c-red);color:var(--c-red);}
.filter-btn[aria-pressed="true"]{
  background:var(--c-red);
  border-color:var(--c-red);
  color:#fff;
}

[data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
[data-reveal][data-reveal-state="in"]{opacity:1;transform:none;}

/* ---------- 7. 页头 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  color:var(--c-paper);
  background-image:linear-gradient(180deg,rgba(6,18,15,.94) 0%,rgba(6,18,15,.72) 58%,rgba(6,18,15,0) 100%);
  border-bottom:1px solid transparent;
  transition:background-color .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header[data-scrolled="true"]{
  background-color:var(--c-moss);
  background-image:linear-gradient(180deg,rgba(255,255,255,.05),rgba(0,0,0,0) 62%);
  border-bottom-color:rgba(217,164,65,.5);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.9);
}
.header-inner{
  width:min(var(--wrap),100%);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

/* 上方比例尺轨道 */
.header-rail{
  display:flex;
  align-items:center;
  gap:clamp(8px,1.8vw,26px);
  min-height:34px;
  border-bottom:1px solid var(--light-line);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  line-height:1.4;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:rgba(246,241,231,.7);
}
.rail-edition{display:inline-flex;align-items:center;gap:8px;margin:0;white-space:nowrap;}
.rail-label{color:var(--c-gold);letter-spacing:.2em;margin-right:.5em;}
.rail-sync{display:inline-flex;align-items:center;margin:0 0 0 auto;white-space:nowrap;}
.rail-dot{
  display:inline-block;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--c-cyan);
  box-shadow:0 0 0 3px rgba(25,224,200,.18);
}
.rail-ticks{
  display:flex;
  align-items:flex-end;
  gap:3px;
  flex:1 1 auto;
  min-width:48px;
  height:14px;
  overflow:hidden;
}
.rail-tick{
  display:block;
  flex:0 0 2px;
  width:2px;
  height:4px;
  background:rgba(246,241,231,.26);
}
.rail-tick:nth-child(3n+1){height:4px;}
.rail-tick:nth-child(3n+2){height:8px;}
.rail-tick:nth-child(3n){height:12px;background:rgba(217,164,65,.62);}
.rail-tick.is-live{
  width:3px;height:14px;
  background:var(--c-cyan);
  box-shadow:0 0 8px rgba(25,224,200,.8);
}

/* 主栏 */
.header-bar{
  display:flex;
  align-items:center;
  gap:clamp(12px,2.2vw,30px);
  min-height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  color:var(--c-paper);
  text-decoration:none;
}
.brand-seal{
  display:grid;
  place-items:center;
  width:40px;height:40px;
  background:var(--c-red);
  color:#fff;
  border:1px solid rgba(217,164,65,.75);
  box-shadow:inset 0 0 0 3px rgba(255,255,255,.14);
  font-family:var(--font-sans);
  font-size:20px;
  font-weight:900;
  line-height:1;
  transform:rotate(-4deg);
  transition:transform .22s var(--ease),background-color .22s var(--ease);
}
.brand:hover .brand-seal{transform:rotate(0deg) scale(1.04);background:var(--c-red-deep);}
.brand-copy{display:grid;gap:2px;}
.brand-name{
  font-size:20px;
  font-weight:900;
  line-height:1.1;
  letter-spacing:.01em;
}
.brand-tagline{
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:500;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:rgba(246,241,231,.66);
}

/* 导航 */
.site-nav{margin-inline:auto;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:10px 12px;
  color:rgba(246,241,231,.82);
  font-size:15px;
  font-weight:500;
  line-height:1.2;
  letter-spacing:.02em;
  text-decoration:none;
  transition:color .18s var(--ease);
}
.nav-index{
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:500;
  letter-spacing:.14em;
  color:rgba(217,164,65,.72);
  transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:4px;
  height:2px;
  background:var(--c-gold);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after,
.nav-link:focus-visible::after{transform:scaleX(1);}
.nav-link[aria-current="page"]{color:#fff;}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--c-cyan);}
.nav-link[aria-current="page"] .nav-index{color:var(--c-cyan);}

.nav-foot{display:none;}
.nav-foot-note{
  margin:0 0 10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--c-gold);
}
.nav-quick{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}

/* 右侧工具区 */
.header-tools{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.header-quick{display:flex;align-items:center;gap:6px;}
.header-cta{padding-inline:18px;font-size:13px;}

/* 汉堡按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:10px 14px;
  background:rgba(246,241,231,.08);
  border:1px solid rgba(246,241,231,.3);
  color:var(--c-paper);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  line-height:1;
  letter-spacing:.16em;
  cursor:pointer;
  transition:background-color .18s var(--ease),border-color .18s var(--ease);
}
.nav-toggle:hover{background:rgba(217,164,65,.18);border-color:var(--c-gold);}
.nav-toggle-box{display:grid;gap:4px;width:16px;}
.nav-toggle-bar{
  display:block;
  height:2px;
  background:currentColor;
  transition:transform .22s var(--ease),opacity .18s var(--ease);
}
.site-header[data-nav-open="true"] .nav-toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg);}
.site-header[data-nav-open="true"] .nav-toggle-bar:nth-child(2){opacity:0;}
.site-header[data-nav-open="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 滚动进度 */
.header-progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:rgba(246,241,231,.14);
  overflow:hidden;
}
.header-progress-fill{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--c-cyan),var(--c-gold) 70%,var(--c-red));
}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,120px);
  background:var(--c-night);
  color:rgba(246,241,231,.78);
  border-top:1px solid rgba(217,164,65,.35);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(25,224,200,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(25,224,200,.07) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 72%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 72%);
}
.footer-ribbon{
  position:relative;
  height:6px;
  background-image:repeating-linear-gradient(135deg,var(--c-red) 0 14px,var(--c-gold) 14px 28px);
}
.footer-inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,1.9fr);
  gap:clamp(32px,5vw,72px);
  width:min(var(--wrap),100%);
  margin-inline:auto;
  padding:clamp(40px,6vw,76px) var(--gutter) clamp(28px,4vw,48px);
}
.footer-lead{display:block;}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--c-paper);
  text-decoration:none;
}
.footer-brand .brand-seal{width:38px;height:38px;font-size:19px;}
.footer-line{
  margin:20px 0 10px;
  font-size:16px;
  font-weight:700;
  line-height:1.5;
  letter-spacing:.03em;
  color:var(--c-paper);
}
.footer-summary{
  max-width:27em;
  font-size:14px;
  line-height:1.8;
  color:rgba(246,241,231,.66);
}
.footer-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  margin-top:20px;
  padding-top:16px;
  border-top:1px dashed rgba(246,241,231,.2);
}
.footer-meta-item{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:rgba(246,241,231,.62);
}
.meta-key{color:var(--c-gold);margin-right:6px;}

.footer-columns{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(18px,3vw,36px);
}
.footer-col-title{
  margin:0 0 14px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(217,164,65,.3);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  line-height:1.4;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--c-gold);
}
.footer-list{display:grid;gap:11px;}
.footer-link{
  display:inline-block;
  font-size:14px;
  line-height:1.55;
  color:rgba(246,241,231,.74);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.footer-link:hover{
  color:#fff;
  border-bottom-color:var(--c-cyan);
  transform:translateX(3px);
}

.footer-base{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:clamp(20px,3vw,44px);
  width:min(var(--wrap),100%);
  margin-inline:auto;
  padding:24px var(--gutter) clamp(28px,4vw,42px);
  border-top:1px solid rgba(246,241,231,.13);
}
.footer-contact-title{
  margin:0 0 12px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--c-gold);
}
.contact-list{display:grid;gap:8px;}
.contact-list li{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px;}
.contact-key{
  flex:0 0 auto;
  min-width:44px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:rgba(217,164,65,.85);
}
.contact-val{
  font-size:14px;
  line-height:1.6;
  color:rgba(246,241,231,.86);
  word-break:break-word;
}
.contact-note{
  margin-top:12px;
  max-width:34em;
  font-size:12.5px;
  line-height:1.75;
  color:rgba(246,241,231,.54);
}
.footer-legalbox{display:grid;align-content:start;gap:14px;}
.footer-data{
  padding-left:12px;
  border-left:2px solid rgba(217,164,65,.55);
  font-size:13px;
  line-height:1.75;
  color:rgba(246,241,231,.6);
}
.footer-legal{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  line-height:1.8;
  color:rgba(246,241,231,.48);
}

/* ---------- 9. 响应式 ---------- */
@media (max-width:1180px){
  .header-quick{display:none;}
}
@media (max-width:1023px){
  :root{--header-h:100px;}
  .rail-sync{display:none;}
  .rail-edition{font-size:10px;}
  .header-bar{min-height:64px;flex-wrap:nowrap;justify-content:space-between;gap:12px;}
  .header-tools{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-seal{width:36px;height:36px;font-size:18px;}
  .brand-name{font-size:18px;}
  .brand-tagline{display:none;}

  .site-nav{
    position:absolute;
    top:100%;left:0;right:0;
    display:block;
    margin:0;
    padding:10px var(--gutter) 30px;
    max-height:calc(100dvh - 96px);
    overflow-y:auto;
    background:var(--c-moss);
    border-top:1px solid rgba(217,164,65,.38);
    border-bottom:1px solid rgba(217,164,65,.26);
    box-shadow:0 30px 60px -30px rgba(0,0,0,.92);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .2s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
  }
  .site-nav[data-open="true"]{
    opacity:1;
    visibility:visible;
    transform:none;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:4px 0;}
  .nav-item + .nav-item{border-top:1px solid rgba(246,241,231,.12);}
  .nav-link{
    width:100%;
    padding:15px 4px 15px 14px;
    font-size:16px;
    justify-content:flex-start;
    align-items:center;
  }
  .nav-link::after{
    left:0;right:auto;
    top:50%;bottom:auto;
    width:3px;height:18px;
    margin-top:-9px;
    transform:scaleY(0);
    transform-origin:center top;
  }
  .nav-link:hover::after,
  .nav-link:focus-visible::after,
  .nav-link[aria-current="page"]::after{transform:scaleY(1);}
  .nav-foot{
    display:block;
    margin-top:22px;
    padding-top:20px;
    border-top:1px dashed rgba(246,241,231,.24);
  }

  .footer-inner{grid-template-columns:minmax(0,1fr);}
  .footer-base{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:900px){
  .grid-12 > [class*="span-"]{grid-column:1 / -1;}
  .footer-columns{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:520px){
  .header-rail{min-height:30px;}
  .rail-edition{letter-spacing:.1em;}
  .rail-ticks{display:none;}
  .footer-columns{grid-template-columns:minmax(0,1fr);gap:22px;}
  .brand-copy{gap:0;}
}

/* ---------- 10. 降级与动效偏好 ---------- */
@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;
  }
  [data-reveal]{
    opacity:1 !important;
    transform:none !important;
    transition:none !important;
  }
}
@media print{
  .site-header,.site-footer{display:none !important;}
  body{background:#fff;color:#000;}
}