/* =========================================================
   爱游戏体育 · 共享站点样式 /assets/site.css
   夜间赛场战术板：玻璃浮岛头部 + 斜切展区页脚
   ========================================================= */

/* ---------- 1. 设计变量 ---------- */
:root{
  --ink-0:#05120F;
  --ink-1:#0A211B;
  --ink-2:#10362C;
  --cyan:#39F5D0;
  --orange:#FF6A2A;
  --yellow:#FFD447;
  --ice:#F2FFF9;
  --mist:#8FB3A8;
  --line:#2A5548;
  --glass:rgba(57,245,208,.12);
  --glass-strong:rgba(57,245,208,.2);

  --font-display:"DeyiHei","得意黑","Barlow Condensed","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",ui-monospace,Consolas,"Liberation Mono",monospace;

  --shell:1280px;
  --gutter:clamp(18px,4vw,56px);
  --grid-gap:clamp(14px,1.8vw,24px);
  --grid-line:rgba(42,85,72,.55);

  --radius-s:12px;
  --radius-m:20px;
  --radius-l:32px;
  --radius-pill:999px;

  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:240ms;
  --header-h:112px;
  --shadow-deep:0 30px 70px -34px #000;
}
@media (max-width:1080px){ :root{ --header-h:100px; } }
@media (max-width:640px){ :root{ --header-h:88px; } }

/* ---------- 2. Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body,h1,h2,h3,h4,h5,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{ margin:0; }
a{ color:inherit; }
table{ border-collapse:collapse; width:100%; }

/* ---------- 3. 基础排版 ---------- */
body{
  min-height:100vh;
  background:
    radial-gradient(120% 78% at 82% -12%, rgba(57,245,208,.10), transparent 58%),
    radial-gradient(86% 58% at -6% 4%, rgba(255,106,42,.07), transparent 56%),
    radial-gradient(90% 70% at 50% 108%, rgba(16,54,44,.85), transparent 62%),
    var(--ink-0);
  background-attachment:fixed;
  color:var(--ice);
  font-family:var(--font-body);
  font-size:clamp(16px,1.02vw,17px);
  line-height:1.7;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4,h5{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.04;
  letter-spacing:-.02em;
  color:var(--ice);
}

::selection{ background:var(--cyan); color:var(--ink-0); }

/* 焦点：2px 荧光青描边 + 2px 偏移 */
:where(a,button,summary,input,select,textarea,[tabindex]):focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:6px;
}

.skip-link{
  position:fixed;
  top:12px; left:12px;
  z-index:200;
  padding:10px 18px;
  border-radius:var(--radius-pill);
  background:var(--cyan);
  color:var(--ink-0);
  font-weight:800;
  font-size:.85rem;
  text-decoration:none;
  transform:translateY(-220%);
  transition:transform var(--dur) var(--ease);
}
.skip-link:focus-visible{ transform:translateY(0); outline-color:var(--ice); }

#main-content{ padding-top:var(--header-h); }

/* ---------- 4. 布局容器 ---------- */
.shell{
  width:min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline:auto;
}

.section{
  position:relative;
  padding-block:clamp(48px,7vw,96px);
}

.band{
  background:linear-gradient(180deg, rgba(10,33,27,.92), rgba(10,33,27,.72));
  border-block:1px solid var(--line);
}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px 36px;
  margin-bottom:clamp(24px,3vw,42px);
}
.section-head__text{ display:grid; gap:10px; max-width:62ch; }

.section-title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(1.8rem,3.2vw,3rem);
  line-height:1.02;
  letter-spacing:-.025em;
  margin:0;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:22px; height:2px;
  background:var(--orange);
  flex:0 0 auto;
}

.lead{
  margin:0;
  max-width:60ch;
  font-size:clamp(1rem,1.3vw,1.14rem);
  line-height:1.75;
  color:rgba(242,255,249,.78);
}

.prose{ max-width:68ch; color:rgba(242,255,249,.78); }
.prose p{ margin:0 0 1.1em; }
.prose p:last-child{ margin-bottom:0; }
.prose ul,.prose ol{ margin:0 0 1.2em; padding-left:1.25em; }
.prose ul{ list-style:disc; }
.prose ol{ list-style:decimal; }
.prose li{ margin-bottom:.4em; }
.prose a{ color:var(--cyan); text-underline-offset:3px; }
.prose strong{ color:var(--ice); font-weight:700; }
.prose h2,.prose h3{ margin:1.6em 0 .6em; }
.prose h2{ font-size:clamp(1.4rem,2.4vw,2rem); }
.prose h3{ font-size:clamp(1.15rem,1.8vw,1.45rem); }

.note{
  margin:0;
  font-size:.82rem;
  line-height:1.65;
  color:var(--mist);
}

.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}

.rule{
  height:1px;
  border:0;
  margin:0;
  background:linear-gradient(90deg, rgba(42,85,72,.95), rgba(42,85,72,.15));
}

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

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding:.72em 1.3em;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-family:var(--font-body);
  font-size:.92rem;
  font-weight:700;
  letter-spacing:.02em;
  line-height:1.2;
  text-decoration:none;
  cursor:pointer;
  transition:background var(--dur) var(--ease), color var(--dur) var(--ease),
             border-color var(--dur) var(--ease), transform var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}
.btn--primary{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--ink-0);
}
.btn--primary:hover{
  background:#63ffe0;
  border-color:#63ffe0;
  transform:translateY(-2px);
  box-shadow:0 12px 28px -14px rgba(57,245,208,.85);
}
.btn--ghost{
  background:var(--glass);
  border-color:rgba(57,245,208,.38);
  color:var(--ice);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.btn--ghost:hover{
  border-color:var(--cyan);
  color:var(--cyan);
  transform:translateY(-2px);
}
.btn--quiet{
  background:var(--ink-2);
  border-color:var(--line);
  color:var(--ice);
}
.btn--quiet:hover{
  border-color:var(--orange);
  color:var(--yellow);
}

/* ---------- 6. 展签 / 数据件 ---------- */
.plate{
  display:grid;
  gap:6px;
  padding:14px 18px;
  border-left:2px solid var(--cyan);
  background:linear-gradient(90deg, rgba(57,245,208,.10), rgba(57,245,208,0) 72%);
}
.plate__index{
  font-family:var(--font-mono);
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.2em;
  color:var(--cyan);
}
.plate__title{
  margin:0;
  font-family:var(--font-display);
  font-size:clamp(1.4rem,2.3vw,2rem);
  font-weight:900;
  line-height:1.05;
  letter-spacing:-.02em;
}
.plate__note{
  margin:0;
  font-size:.88rem;
  color:var(--mist);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border-radius:6px;
  font-family:var(--font-mono);
  font-size:.7rem;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--yellow);
  background:rgba(255,212,71,.10);
  border:1px solid rgba(255,212,71,.32);
}

.score-chip{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:3px 10px;
  border-radius:6px;
  font-family:var(--font-mono);
  font-size:.82rem;
  font-weight:600;
  font-variant-numeric:tabular-nums;
  color:var(--yellow);
  background:#071814;
  border:1px solid var(--line);
}

/* ---------- 7. 胶囊筛选 ---------- */
.pill-bar{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:.44em 1em;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:transparent;
  color:var(--mist);
  font-family:var(--font-body);
  font-size:.85rem;
  font-weight:600;
  cursor:pointer;
  transition:color var(--dur) var(--ease), border-color var(--dur) var(--ease),
             background var(--dur) var(--ease);
}
.pill:hover{
  color:var(--ice);
  border-color:var(--cyan);
  background:rgba(57,245,208,.08);
}
.pill[aria-pressed="true"],
.pill.is-active{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--ink-0);
}

/* ---------- 8. 折叠面板 ---------- */
.fold{
  border:1px solid var(--line);
  border-radius:var(--radius-s);
  background:var(--ink-2);
  overflow:hidden;
  transition:border-color var(--dur) var(--ease);
}
.fold + .fold{ margin-top:10px; }
.fold:hover{ border-color:rgba(57,245,208,.45); }
.fold > summary{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 18px;
  cursor:pointer;
  list-style:none;
  font-weight:600;
  color:var(--ice);
}
.fold > summary::-webkit-details-marker{ display:none; }
.fold > summary::after{
  content:"+";
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:1.1rem;
  color:var(--cyan);
  transition:transform var(--dur) var(--ease);
}
.fold[open] > summary{ color:var(--cyan); }
.fold[open] > summary::after{ transform:rotate(45deg); }
.fold__index{
  font-family:var(--font-mono);
  font-size:.76rem;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--orange);
}
.fold__body{
  padding:0 18px 16px;
  font-size:.94rem;
  line-height:1.72;
  color:var(--mist);
}
.fold__body p{ margin:0 0 .8em; max-width:68ch; }
.fold__body p:last-child{ margin-bottom:0; }

/* ---------- 9. 图片容器基座 ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--radius-m);
  border:1px solid var(--line);
  background:linear-gradient(150deg, var(--ink-2), #061a16);
  isolation:isolate;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(200deg, rgba(57,245,208,.14), transparent 46%),
    linear-gradient(0deg, rgba(5,18,15,.58), transparent 52%);
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  filter:saturate(1.04) contrast(1.06);
}
.media-frame--21x9{ aspect-ratio:21/9; }
.media-frame--16x9{ aspect-ratio:16/9; }
.media-frame--4x5{ aspect-ratio:4/5; }
.media-frame__caption{
  position:absolute;
  left:0; right:0; bottom:0;
  z-index:2;
  padding:12px 16px;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.14em;
  color:var(--ice);
  background:linear-gradient(0deg, rgba(5,18,15,.86), transparent);
}

/* ---------- 10. 面包屑 ---------- */
.breadcrumb{
  font-family:var(--font-mono);
  font-size:.76rem;
  letter-spacing:.08em;
  color:var(--mist);
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
}
.breadcrumb li{ display:inline-flex; align-items:center; gap:10px; }
.breadcrumb li + li::before{
  content:"/";
  color:var(--line);
}
.breadcrumb a{
  color:var(--mist);
  text-decoration:none;
  transition:color var(--dur) var(--ease);
}
.breadcrumb a:hover{ color:var(--cyan); }
.breadcrumb [aria-current="page"]{ color:var(--ice); }

/* ---------- 11. 头部 ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:90;
  padding:calc(var(--gutter) * .36) var(--gutter) 0;
}

.scroll-meter{
  position:fixed;
  top:0; left:0; right:0;
  height:3px;
  z-index:120;
  background:rgba(42,85,72,.32);
  pointer-events:none;
}
.scroll-meter span{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg, var(--cyan), var(--yellow) 62%, var(--orange));
  transition:width 90ms linear;
}

.header-rail{
  position:relative;
  max-width:var(--shell);
  margin-inline:auto;
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,22px);
  padding:9px 9px 9px 16px;
  border-radius:var(--radius-pill);
  background:linear-gradient(118deg, rgba(16,54,44,.74), rgba(5,18,15,.80));
  border:1px solid rgba(57,245,208,.16);
  box-shadow:var(--shadow-deep), inset 0 1px 0 rgba(57,245,208,.10);
  -webkit-backdrop-filter:blur(16px) saturate(1.25);
  backdrop-filter:blur(16px) saturate(1.25);
  transition:background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.site-header[data-scrolled="true"] .header-rail{
  background:linear-gradient(118deg, rgba(10,33,27,.95), rgba(4,16,13,.97));
  box-shadow:0 26px 62px -28px #000, inset 0 1px 0 rgba(57,245,208,.18);
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  min-width:0;
  text-decoration:none;
}
.brand-mark{
  position:relative;
  flex:0 0 auto;
  width:36px;
  height:36px;
  border-radius:11px;
  display:grid;
  place-items:center;
  overflow:hidden;
  background:linear-gradient(150deg, var(--ink-2), #071e19);
  border:1px solid rgba(57,245,208,.35);
  transition:border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.brand-mark::before{
  content:"";
  width:16px; height:16px;
  background:var(--cyan);
  clip-path:polygon(12% 0, 100% 0, 56% 100%, 0 100%);
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:5px; bottom:5px;
  width:7px; height:7px;
  border-radius:2px;
  background:var(--orange);
}
.brand:hover .brand-mark{
  border-color:var(--cyan);
  transform:translateY(-1px);
}
.brand-text{
  display:flex;
  flex-direction:column;
  gap:1px;
  min-width:0;
  line-height:1.14;
}
.brand-name{
  font-family:var(--font-display);
  font-size:1.04rem;
  font-weight:900;
  letter-spacing:.01em;
  color:var(--ice);
  white-space:nowrap;
}
.brand-descriptor{
  font-size:.65rem;
  letter-spacing:.09em;
  color:var(--mist);
  white-space:nowrap;
  transition:opacity var(--dur) var(--ease);
}
.site-header[data-scrolled="true"] .brand-descriptor{ opacity:.35; }

.nav-capsule{
  display:flex;
  align-items:center;
  gap:4px;
  margin-inline:auto;
  min-width:0;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-item{ display:block; }
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 12px;
  border-radius:var(--radius-pill);
  font-size:.86rem;
  font-weight:600;
  letter-spacing:.02em;
  color:rgba(242,255,249,.78);
  text-decoration:none;
  white-space:nowrap;
  transition:color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px; right:12px; bottom:4px;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--dur) var(--ease), background var(--dur) var(--ease);
}
.nav-link:hover{
  color:var(--ice);
  background:rgba(57,245,208,.10);
}
.nav-link:hover::after{ transform:scaleX(1); }
.nav-link[aria-current="page"]{
  color:var(--cyan);
  background:rgba(57,245,208,.14);
}
.nav-link[aria-current="page"]::after{
  transform:scaleX(1);
  background:var(--orange);
}

.nav-item--cta{ display:none; }
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:11px 16px;
  border-radius:14px;
  background:var(--cyan);
  color:var(--ink-0);
  font-size:.9rem;
  font-weight:800;
  text-decoration:none;
  text-align:center;
}

.header-actions{
  display:flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
}
.header-cta{
  padding:.54em 1.1em;
  font-size:.82rem;
  white-space:nowrap;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 14px;
  border-radius:var(--radius-pill);
  background:rgba(57,245,208,.13);
  border:1px solid rgba(57,245,208,.32);
  color:var(--ice);
  font-family:var(--font-body);
  font-size:.8rem;
  font-weight:700;
  letter-spacing:.04em;
  cursor:pointer;
  transition:background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.nav-toggle:hover{ border-color:var(--cyan); }
.nav-toggle__bars{ display:grid; gap:4px; width:16px; }
.nav-toggle__bars span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--cyan);
  transition:transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.site-header[data-open="true"] .nav-toggle__bars span:first-child{
  transform:translateY(3px) rotate(45deg);
}
.site-header[data-open="true"] .nav-toggle__bars span:last-child{
  transform:translateY(-3px) rotate(-45deg);
}
.nav-toggle__text{ white-space:nowrap; }

/* ---------- 12. 页脚 ---------- */
.site-footer{
  position:relative;
  overflow:hidden;
  margin-top:clamp(56px,8vw,104px);
  padding:clamp(48px,7vw,88px) 0 clamp(22px,3vw,32px);
  background:linear-gradient(168deg, var(--ink-1) 0%, rgba(5,18,15,.98) 62%, var(--ink-0) 100%);
  border-top:1px solid var(--line);
  color:rgba(242,255,249,.86);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0; left:0; right:0;
  height:3px;
  opacity:.6;
  background:linear-gradient(90deg, var(--cyan), var(--yellow) 46%, var(--orange));
}
.footer-glow{
  position:absolute;
  top:-150px; right:-110px;
  width:min(520px,86vw);
  height:310px;
  z-index:0;
  pointer-events:none;
  transform:rotate(-9deg);
  background:radial-gradient(closest-side, rgba(57,245,208,.20), transparent 72%);
}
.footer-inner{ position:relative; z-index:1; }

.footer-head{
  display:grid;
  gap:14px;
  padding-bottom:clamp(26px,3.6vw,42px);
}
.footer-kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer-kicker::before{
  content:"";
  width:24px; height:2px;
  background:var(--orange);
}
.footer-line{
  margin:0;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(2.05rem,5.4vw,4.4rem);
  line-height:.98;
  letter-spacing:-.03em;
  color:var(--ice);
}
.footer-intro{
  margin:0;
  max-width:56ch;
  font-size:.95rem;
  line-height:1.72;
  color:var(--mist);
}

.footer-grid{
  display:grid;
  grid-template-columns:1fr 1fr 1.5fr;
  gap:clamp(26px,4vw,52px);
  padding:clamp(28px,4vw,46px) 0;
}
.footer-group{ min-width:0; }
.footer-group__title{
  display:flex;
  align-items:center;
  gap:9px;
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.22em;
  color:var(--cyan);
}
.footer-group__title::before{
  content:"";
  width:17px; height:2px;
  background:var(--orange);
  flex:0 0 auto;
}
.footer-links{ display:grid; gap:9px; }
.footer-link{
  color:rgba(242,255,249,.74);
  font-size:.9rem;
  text-decoration:none;
  transition:color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}
.footer-link:hover{
  color:var(--cyan);
  padding-left:4px;
}

.footer-contact{ min-width:0; }
.contact-list{ display:grid; gap:13px; }
.contact-item{ display:grid; gap:3px; }
.contact-label{
  font-family:var(--font-mono);
  font-size:.66rem;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--mist);
}
.contact-value{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:.9rem;
  line-height:1.5;
  color:var(--ice);
  word-break:break-word;
}
.copy-btn{
  padding:3px 10px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(57,245,208,.08);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:.66rem;
  font-weight:600;
  letter-spacing:.1em;
  cursor:pointer;
  transition:background var(--dur) var(--ease), color var(--dur) var(--ease),
             border-color var(--dur) var(--ease);
}
.copy-btn:hover{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--ink-0);
}
.copy-btn.is-copied{
  background:var(--yellow);
  border-color:var(--yellow);
  color:var(--ink-0);
}
.footer-note{
  margin:14px 0 0;
  max-width:44ch;
  font-size:.78rem;
  line-height:1.66;
  color:var(--mist);
}

.footer-rule{
  height:1px;
  margin-bottom:20px;
  background:repeating-linear-gradient(90deg, rgba(42,85,72,.95) 0 22px, transparent 22px 34px);
}

.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 24px;
  font-size:.76rem;
  color:var(--mist);
}
.footer-copy{ margin:0; }
.footer-icp{
  margin:0;
  font-family:var(--font-mono);
  letter-spacing:.04em;
}
.legal-links{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  margin-left:auto;
}
.legal-link{
  color:var(--mist);
  text-decoration:none;
  transition:color var(--dur) var(--ease);
}
.legal-link:hover{ color:var(--cyan); }

/* ---------- 13. 响应式 ---------- */
@media (max-width:1080px){
  .nav-toggle{ display:inline-flex; }
  .header-cta{ display:none; }
  .nav-capsule{
    position:absolute;
    top:calc(100% + 12px);
    left:0; right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    margin:0;
    padding:14px;
    border-radius:26px;
    background:linear-gradient(160deg, rgba(10,33,27,.98), rgba(4,16,13,.99));
    border:1px solid rgba(57,245,208,.22);
    box-shadow:0 32px 72px -32px #000;
  }
  .site-header[data-open="true"] .nav-capsule{ display:flex; }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    width:100%;
  }
  .nav-item{ width:100%; }
  .nav-link{
    display:block;
    width:100%;
    padding:12px 14px;
    border-radius:14px;
    font-size:.95rem;
  }
  .nav-link::after{ display:none; }
  .nav-link[aria-current="page"]{ background:rgba(57,245,208,.18); }
  .nav-item--cta{ display:block; margin-top:6px; }
}

@media (max-width:900px){
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .footer-contact{ grid-column:1 / -1; }
}

@media (max-width:640px){
  .site-header{ padding:10px 14px 0; }
  .header-rail{ padding:8px 8px 8px 12px; gap:8px; }
  .brand-mark{ width:31px; height:31px; border-radius:9px; }
  .brand-mark::before{ width:14px; height:14px; }
  .brand-name{ font-size:.94rem; }
  .brand-descriptor{ display:none; }
  .nav-toggle{ padding:8px 12px; font-size:.76rem; }
  .nav-capsule{ top:calc(100% + 9px); padding:11px; border-radius:22px; }

  .footer-grid{ grid-template-columns:1fr; gap:26px; }
  .legal-links{ margin-left:0; }
  .footer-legal{ gap:8px 16px; }
}

/* ---------- 14. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .btn:hover,
  .brand:hover .brand-mark,
  .footer-link:hover{ transform:none; }
  .scroll-meter span{ transition:none; }
}