/* ==========================================================================
   selfkey-im.com.cn — 共享外壳样式 / assets/site.css
   基调：深空舱 · 电光青 / 霓虹紫脉冲 · 粗边框硬阴影
   ========================================================================== */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,fieldset{margin:0;padding:0}
ul,ol{list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
img,svg,video{display:block;max-width:100%}
[hidden]{display:none!important}

/* ---------- 2. tokens ---------- */
:root{
  --void-black:#05070C;
  --cabin-panel:#0B1018;
  --cabin-raised:#111823;
  --edge-line:#2A3340;
  --pulse-cyan:#00E5FF;
  --neon-violet:#7C4DFF;
  --amber-alert:#FFAE33;
  --state-ok:#2ECC9A;
  --state-warn:#FF6B4A;
  --text-primary:#E8EDF5;
  --text-index:#8A94A6;
  --mist-lilac:#C9C2FF;

  --font-cn:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-mono:'JetBrains Mono','IBM Plex Mono',ui-monospace,SFMono-Regular,monospace;

  --fs-display:clamp(44px,7vw,92px);
  --fs-h1:clamp(34px,4.6vw,56px);
  --fs-h2:clamp(24px,2.4vw,32px);
  --fs-h3:20px;
  --fs-body:16.5px;
  --fs-index:13px;
  --fs-caption:12px;

  --shell:1240px;
  --gutter:clamp(18px,4vw,44px);
  --rule:1.5px solid var(--edge-line);
  --rule-hard:2px solid var(--edge-line);
  --shadow-hard:8px 8px 0 rgba(0,0,0,.62);
  --shadow-soft:0 18px 44px rgba(0,0,0,.55);
  --glow-cyan:0 0 0 1px rgba(0,229,255,.35),0 0 24px rgba(0,229,255,.18);

  --dur-micro:120ms;
  --dur-panel:220ms;
  --ease-panel:cubic-bezier(.2,.7,.3,1);
}

/* ---------- 3. base ---------- */
body{
  background:
    radial-gradient(1100px 520px at 50% -8%,rgba(124,77,255,.16),transparent 62%),
    radial-gradient(900px 460px at 88% 6%,rgba(0,229,255,.09),transparent 66%),
    var(--void-black);
  color:var(--text-primary);
  font-family:var(--font-cn);
  font-size:var(--fs-body);
  line-height:1.85;
  font-weight:400;
  min-height:100vh;
  overflow-x:hidden;
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(120% 90% at 50% 40%,transparent 45%,rgba(0,0,0,.55));
}
main{position:relative;z-index:1}
::selection{background:var(--pulse-cyan);color:#04121A}
:focus-visible{outline:2px solid var(--pulse-cyan);outline-offset:3px}
h1,h2,h3,h4{font-weight:300;letter-spacing:-.01em}

/* ---------- 4. layout helpers ---------- */
.container{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2.2vw,28px)}
.col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-12{grid-column:span 12}
@media (min-width:900px){
  .col-3{grid-column:span 3}
  .col-4{grid-column:span 4}
  .col-5{grid-column:span 5}
  .col-6{grid-column:span 6}
  .col-7{grid-column:span 7}
  .col-8{grid-column:span 8}
  .col-9{grid-column:span 9}
  .col-12{grid-column:span 12}
}
.section{padding-block:clamp(44px,6vw,88px);border-top:var(--rule)}
.section-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px 20px;margin-bottom:clamp(20px,3vw,36px)}
.section-title{font-size:var(--fs-h2);line-height:1.25}
.section-index{
  font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.14em;
  padding:4px 10px;color:var(--mist-lilac);
  background:rgba(124,77,255,.18);border:1px solid rgba(124,77,255,.5);
}
.section-note{margin-left:auto;font-family:var(--font-mono);font-size:var(--fs-index);color:var(--text-index)}
.rule{height:1.5px;border:0;background:var(--edge-line)}

/* ---------- 5. text utilities ---------- */
.mono-label{
  font-family:var(--font-mono);font-size:var(--fs-index);letter-spacing:.14em;
  text-transform:uppercase;color:var(--text-index);
}
.metric{display:grid;gap:6px}
.metric-value{
  font-family:var(--font-mono);font-weight:600;letter-spacing:-.01em;
  font-size:clamp(28px,4vw,44px);line-height:1.05;color:var(--pulse-cyan);
}
.metric-unit{font-family:var(--font-mono);font-size:var(--fs-caption);color:var(--text-index);letter-spacing:.08em}
.metric-label{font-size:var(--fs-index);color:var(--text-index);letter-spacing:.08em}

/* ---------- 6. buttons / pills / status ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:var(--fs-index);letter-spacing:.1em;
  padding:12px 20px;border:var(--rule-hard);color:var(--text-primary);
  transition:transform var(--dur-micro) ease-out,color var(--dur-micro) ease-out,
             border-color var(--dur-micro) ease-out,background-color var(--dur-micro) ease-out;
}
.btn:hover{transform:translate(-2px,-2px)}
.btn-primary{background:var(--pulse-cyan);border-color:var(--pulse-cyan);color:#04121A;font-weight:600;box-shadow:5px 5px 0 rgba(124,77,255,.55)}
.btn-primary:hover{background:#5CF0FF;box-shadow:8px 8px 0 rgba(124,77,255,.65)}
.btn-ghost{border-color:var(--edge-line)}
.btn-ghost:hover{border-color:var(--pulse-cyan);color:var(--pulse-cyan)}
.btn-sm{padding:8px 14px;font-size:var(--fs-caption)}

.pill{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.08em;
  padding:5px 10px;border:1px solid var(--edge-line);color:var(--text-index);
}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--state-ok)}
.dot--ok{background:var(--state-ok);box-shadow:0 0 0 3px rgba(46,204,154,.18)}
.dot--warn{background:var(--state-warn);box-shadow:0 0 0 3px rgba(255,107,74,.18)}
.dot--alert{background:var(--amber-alert);box-shadow:0 0 0 3px rgba(255,174,51,.2);animation:pulse-breathe 2400ms ease-in-out infinite}
.status-ok{color:var(--state-ok)}
.status-warn{color:var(--state-warn)}
.status-alert{color:var(--amber-alert)}

@keyframes pulse-breathe{0%,100%{opacity:.75}50%{opacity:1}}

/* ---------- 7. panel ---------- */
.panel{
  position:relative;background:var(--cabin-panel);
  border:var(--rule);box-shadow:var(--shadow-hard);
  padding:clamp(18px,2.4vw,28px);
}
.panel--cyan{border-color:rgba(0,229,255,.45)}
.panel-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 16px;padding-bottom:12px;border-bottom:var(--rule);margin-bottom:16px}
.panel-title{font-size:var(--fs-h3);font-weight:400}
.panel-note{margin-left:auto;font-family:var(--font-mono);font-size:var(--fs-caption);color:var(--text-index)}

/* ---------- 8. breadcrumb ---------- */
.breadcrumb{margin-block:18px 26px}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-family:var(--font-mono);font-size:var(--fs-caption);color:var(--text-index);letter-spacing:.08em}
.breadcrumb-item{display:inline-flex;align-items:center;gap:10px}
.breadcrumb-item:not(:last-child)::after{content:"›";color:var(--edge-line)}
.breadcrumb-link{color:var(--text-index);transition:color var(--dur-micro) ease-out}
.breadcrumb-link:hover{color:var(--pulse-cyan)}
.breadcrumb-item[aria-current="page"] .breadcrumb-link,
.breadcrumb-item [aria-current="page"]{color:var(--mist-lilac)}

/* ---------- 9. media ---------- */
.media-frame{
  position:relative;overflow:hidden;border:var(--rule);
  background:radial-gradient(120% 120% at 50% 0%,#101724,#070A11 72%);
  box-shadow:var(--shadow-hard);
}
.media-frame img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.06)}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(58% 48% at 50% 44%,rgba(0,229,255,.16),transparent 72%),
    linear-gradient(180deg,transparent 44%,rgba(5,7,12,.78));
}
.media-frame--21x9{aspect-ratio:21/9}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--3x4{aspect-ratio:3/4}
.media-frame--1x1{aspect-ratio:1/1}
.media-caption{margin-top:10px;font-family:var(--font-mono);font-size:var(--fs-caption);color:var(--text-index);letter-spacing:.06em}
.media-grid{display:grid;gap:clamp(14px,2vw,24px);grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}

/* ---------- 10. prose (文档级长文) ---------- */
.prose{max-width:74ch;font-size:var(--fs-body);line-height:1.85}
.prose>*+*{margin-top:1.1em}
.prose h2{
  font-size:var(--fs-h2);font-weight:300;margin-top:2em;padding-top:.7em;
  border-top:var(--rule);
}
.prose h3{font-size:var(--fs-h3);font-weight:500;margin-top:1.6em}
.prose a{color:var(--pulse-cyan);border-bottom:1px solid rgba(0,229,255,.4)}
.prose a:hover{border-bottom-color:var(--pulse-cyan);color:var(--mist-lilac)}
.prose ul,.prose ol{display:grid;gap:.55em}
.prose ul li{position:relative;padding-left:1.4em}
.prose ul li::before{content:"";position:absolute;left:0;top:.85em;width:9px;height:1.5px;background:var(--neon-violet)}
.prose ol{counter-reset:prose;padding-left:0}
.prose ol li{position:relative;padding-left:2.4em;counter-increment:prose}
.prose ol li::before{
  content:counter(prose,decimal-leading-zero);position:absolute;left:0;top:.3em;
  font-family:var(--font-mono);font-size:var(--fs-caption);color:var(--neon-violet);letter-spacing:.14em;
}
.prose-num{display:block;margin-bottom:6px;font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.14em;color:var(--neon-violet)}

/* ---------- 11. accordion ---------- */
.accordion{display:grid;border:var(--rule);background:var(--cabin-panel);box-shadow:var(--shadow-hard)}
.accordion-item{border-bottom:1px solid var(--edge-line)}
.accordion-item:last-child{border-bottom:0}
.accordion-heading{margin:0;font-size:inherit;font-weight:400}
.accordion-trigger{
  display:flex;align-items:center;gap:14px;width:100%;text-align:left;
  padding:18px clamp(16px,2vw,24px);font-size:16px;color:var(--text-primary);
  transition:background-color var(--dur-micro) ease-out,color var(--dur-micro) ease-out;
}
.accordion-trigger::after{content:"+";margin-left:auto;font-family:var(--font-mono);color:var(--pulse-cyan);font-size:18px;line-height:1}
.accordion-trigger:hover{background:rgba(0,229,255,.05)}
.accordion-trigger[aria-expanded="true"]{color:var(--pulse-cyan);background:rgba(0,229,255,.05)}
.accordion-trigger[aria-expanded="true"]::after{content:"–"}
.accordion-panel{height:0;overflow:hidden;opacity:0;transition:height var(--dur-panel) var(--ease-panel),opacity var(--dur-panel) var(--ease-panel)}
.accordion-panel.is-open{opacity:1}
.accordion-body{padding:0 clamp(16px,2vw,24px) 20px;font-size:15px;line-height:1.85;color:var(--text-index)}

/* ---------- 12. filter ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;padding:12px 0;border-bottom:var(--rule);margin-bottom:clamp(18px,3vw,28px)}
.filter-btn{
  font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.1em;
  padding:8px 14px;border:1px solid var(--edge-line);color:var(--text-index);
  transition:color var(--dur-micro) ease-out,border-color var(--dur-micro) ease-out,background-color var(--dur-micro) ease-out;
}
.filter-btn:hover{border-color:var(--pulse-cyan);color:var(--text-primary)}
.filter-btn[aria-pressed="true"]{background:var(--pulse-cyan);border-color:var(--pulse-cyan);color:#04121A;font-weight:600}

/* ---------- 13. reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity 320ms ease-out,transform 320ms ease-out}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 14. header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,12,.94);
  border-bottom:var(--rule);
  backdrop-filter:blur(10px);
}
.scroll-progress{
  position:absolute;left:0;bottom:-1.5px;width:100%;height:2px;z-index:3;
  background:linear-gradient(90deg,var(--pulse-cyan),var(--neon-violet));
  transform:scaleX(0);transform-origin:0 50%;
}
.skip-link{
  position:absolute;left:50%;top:0;z-index:120;
  transform:translate(-50%,-160%);
  background:var(--pulse-cyan);color:#04121A;border:2px solid var(--void-black);
  font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.12em;
  padding:10px 18px;
  transition:transform var(--dur-micro) ease-out;
}
.skip-link:focus{transform:translate(-50%,0)}

/* 速览条 */
.utility-bar{
  border-bottom:1px solid var(--edge-line);
  background:linear-gradient(90deg,rgba(0,229,255,.07),rgba(124,77,255,.1) 55%,rgba(5,7,12,.2));
}
.utility-inner{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;padding-block:7px}
.utility-note{
  font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.14em;
  color:var(--text-index);
}
.utility-links{display:flex;flex-wrap:wrap;gap:6px 18px;margin-left:auto}
.utility-item{display:inline-flex}
.utility-link{
  font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.1em;
  color:var(--text-index);border-bottom:1px solid transparent;
  transition:color var(--dur-micro) ease-out,border-color var(--dur-micro) ease-out;
}
.utility-link:hover{color:var(--pulse-cyan);border-bottom-color:rgba(0,229,255,.6)}
.utility-cta{flex:0 0 auto}

/* 刊头 */
.masthead{
  background:
    linear-gradient(180deg,rgba(11,16,24,.85),rgba(5,7,12,.6)),
    repeating-linear-gradient(90deg,transparent 0 78px,rgba(42,51,64,.35) 78px 79px);
  border-bottom:var(--rule);
}
.masthead-inner{
  position:relative;display:flex;flex-direction:column;align-items:center;
  gap:12px;text-align:center;
  padding-block:clamp(18px,2.6vw,30px) clamp(14px,2vw,22px);
}
.brand{display:flex;flex-direction:column;align-items:center;gap:9px}
.brand-mark{
  position:relative;width:30px;height:30px;transform:rotate(45deg);
  border:1.5px solid var(--pulse-cyan);
  background:linear-gradient(135deg,rgba(0,229,255,.18),rgba(124,77,255,.22));
}
.brand-mark::before{
  content:"";position:absolute;inset:9px;background:var(--pulse-cyan);
  animation:pulse-breathe 2400ms ease-in-out infinite;
}
.brand-name{
  font-size:clamp(30px,4.4vw,52px);font-weight:200;line-height:1.05;letter-spacing:.02em;
  color:var(--text-primary);
}
@supports (-webkit-background-clip:text){
  .brand-name{
    background:linear-gradient(120deg,#E8EDF5 12%,#C9C2FF 58%,#00E5FF 100%);
    -webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent;color:transparent;
  }
}
.brand-tagline{
  font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.16em;
  color:var(--text-index);
}

/* 移动开关 */
.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:8px 12px;border:1.5px solid var(--edge-line);background:var(--cabin-panel);
  font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.12em;color:var(--text-primary);
  transition:border-color var(--dur-micro) ease-out,color var(--dur-micro) ease-out;
}
.nav-toggle:hover{border-color:var(--pulse-cyan);color:var(--pulse-cyan)}
.nav-toggle[aria-expanded="true"]{border-color:var(--pulse-cyan);color:var(--pulse-cyan)}
.nav-toggle-bars{display:inline-flex;flex-direction:column;justify-content:center;gap:3px;width:16px}
.bar{display:block;width:100%;height:1.5px;background:currentColor;transition:transform 160ms ease-out,opacity 160ms ease-out}
.nav-toggle[aria-expanded="true"] .bar:nth-child(1){transform:translateY(4.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .bar:nth-child(3){transform:translateY(-4.5px) rotate(-45deg)}

/* 主导航 */
.site-nav{background:linear-gradient(180deg,rgba(11,16,24,.96),rgba(5,7,12,.96))}
.nav-inner{display:flex;justify-content:center}
.nav-list{display:flex;flex-wrap:wrap;justify-content:center;width:100%}
.nav-item{flex:0 0 auto;border-left:1px solid var(--edge-line)}
.nav-item:last-child{border-right:1px solid var(--edge-line)}
.nav-link{
  display:flex;align-items:baseline;gap:9px;
  padding:15px clamp(14px,2vw,26px);
  font-size:14px;letter-spacing:.1em;color:var(--text-index);
  transition:color var(--dur-micro) ease-out,background-color var(--dur-micro) ease-out,box-shadow var(--dur-micro) ease-out;
}
.nav-index{font-family:var(--font-mono);font-size:11px;color:rgba(201,194,255,.45)}
.nav-link:hover{color:var(--text-primary);background:rgba(0,229,255,.06)}
.nav-link:hover .nav-index{color:var(--pulse-cyan)}
.nav-link[aria-current="page"]{
  color:var(--pulse-cyan);background:rgba(0,229,255,.08);
  box-shadow:inset 0 -2px 0 var(--pulse-cyan);
}
.nav-link[aria-current="page"] .nav-index{color:var(--pulse-cyan);animation:pulse-breathe 2400ms ease-in-out infinite}

/* ---------- 15. footer ---------- */
.site-footer{
  position:relative;margin-top:clamp(56px,8vw,110px);
  border-top:var(--rule-hard);
  background:linear-gradient(180deg,#070A11,var(--void-black) 46%);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-2px;height:2px;
  background:linear-gradient(90deg,transparent,var(--pulse-cyan),var(--neon-violet),transparent);
  opacity:.7;
}
.footer-inner{padding-block:clamp(36px,5vw,64px) 26px}
.footer-top{
  display:grid;grid-template-columns:minmax(0,1fr);gap:clamp(24px,4vw,56px);
  padding-bottom:28px;border-bottom:1px solid var(--edge-line);
}
.footer-brand-name{font-size:22px;font-weight:300;letter-spacing:.02em}
.footer-brand-tagline{margin-top:8px;font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.14em;color:var(--pulse-cyan)}
.footer-legal{margin-top:12px;max-width:36ch;font-size:13px;line-height:1.8;color:var(--text-index)}
.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(18px,3vw,36px)}
.footer-col-title{
  font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.14em;font-weight:600;
  color:var(--text-primary);padding-bottom:10px;border-bottom:var(--rule);margin-bottom:12px;
}
.footer-list{display:grid;gap:10px}
.footer-link{font-size:14px;color:var(--text-index);transition:color var(--dur-micro) ease-out,padding-left var(--dur-micro) ease-out}
.footer-link:hover{color:var(--pulse-cyan);padding-left:4px}
.footer-contact{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;
  padding:24px 0;border-bottom:1px solid var(--edge-line);
}
.footer-contact-item{display:grid;gap:6px;font-size:13.5px;color:var(--text-primary)}
.footer-contact-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--text-index)}
.footer-contact-value{font-family:var(--font-mono);font-size:13.5px;line-height:1.7;color:var(--mist-lilac);word-break:break-word}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px 24px;padding-top:20px}
.footer-icp{font-family:var(--font-mono);font-size:var(--fs-caption);color:var(--text-index);border:1px solid var(--edge-line);padding:4px 10px}
.footer-note{flex:1 1 320px;font-size:var(--fs-caption);line-height:1.7;color:var(--text-index)}
.footer-copy{margin-left:auto;font-family:var(--font-mono);font-size:var(--fs-caption);color:var(--text-index)}

/* 右下快捷圈 */
.quick-dock{
  position:fixed;right:clamp(12px,2vw,26px);bottom:clamp(12px,2vw,26px);z-index:70;
  display:flex;flex-direction:column;align-items:flex-end;gap:8px;
}
.dock-link{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  padding:8px 12px;background:var(--cabin-panel);border:1px solid var(--edge-line);
  color:var(--text-index);box-shadow:var(--shadow-soft);
  transition:color var(--dur-micro) ease-out,border-color var(--dur-micro) ease-out,transform var(--dur-micro) ease-out;
}
.dock-link:hover{color:var(--pulse-cyan);border-color:var(--pulse-cyan);transform:translateX(-3px)}
.to-top{
  width:42px;height:42px;display:grid;place-items:center;
  border:1.5px solid var(--pulse-cyan);background:rgba(0,229,255,.1);color:var(--pulse-cyan);
  font-family:var(--font-mono);font-size:16px;
  transition:background-color var(--dur-micro) ease-out,color var(--dur-micro) ease-out;
}
.to-top:hover{background:var(--pulse-cyan);color:#04121A}

/* ---------- 16. responsive ---------- */
@media (min-width:900px){
  .footer-top{grid-template-columns:minmax(240px,1fr) 2fr}
}

@media (max-width:900px){
  .masthead{padding-block:0}
  .masthead-inner{
    flex-direction:row;align-items:center;justify-content:space-between;
    text-align:left;gap:14px;padding-block:12px;
  }
  .brand{align-items:flex-start;text-align:left;gap:5px}
  .brand-mark{width:20px;height:20px;margin-bottom:2px}
  .brand-name{font-size:clamp(20px,5.4vw,26px)}
  .brand-tagline{font-size:11px;letter-spacing:.1em}
  .nav-toggle{display:inline-flex}
  .site-nav{
    display:none;position:absolute;left:0;right:0;top:100%;
    border:0;border-top:var(--rule);border-bottom:var(--rule-hard);
    background:var(--cabin-panel);box-shadow:var(--shadow-soft);
    max-height:75vh;overflow-y:auto;
  }
  .site-nav[data-open="true"]{display:block}
  .site-nav .nav-inner{padding-inline:0}
  .nav-inner{justify-content:flex-start}
  .nav-list{flex-direction:column}
  .nav-item{border-left:0;border-bottom:1px solid var(--edge-line)}
  .nav-item:last-child{border-right:0;border-bottom:0}
  .nav-link{padding:16px var(--gutter);font-size:15px}
  .nav-link[aria-current="page"]{box-shadow:inset 3px 0 0 var(--pulse-cyan)}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-contact{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:640px){
  .utility-note{display:none}
  .utility-links{margin-left:0;gap:6px 14px}
  .utility-inner{gap:10px}
  .utility-cta{margin-left:auto}
  .footer-cols{grid-template-columns:minmax(0,1fr)}
  .footer-copy{margin-left:0}
  .dock-link{padding:7px 10px;font-size:10px}
}

/* ---------- 17. motion / print ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  [data-reveal]{opacity:1;transform:none}
}
@media print{
  .site-header,.quick-dock,.scroll-progress{display:none!important}
  body{background:#fff;color:#111}
}