/* ============================================================
   /assets/site.css — 澳州幸运10品牌 全站共享样式
   数字夜航：深空午夜蓝基底 + 霓虹青信号 + 幸运金行动 + 信号品红反馈
   ============================================================ */

/* ── 1. 令牌 ───────────────────────────────────────────── */
:root{
  --ink-900:#070C1F;
  --ink-800:#0E1734;
  --ink-700:#16224A;
  --ink-600:#1E2A52;
  --cyan:#12E0C8;
  --gold:#F5C243;
  --magenta:#FF3D7F;
  --fog:#C9D4F0;
  --dust:#7C8BB5;
  --pale:#E8FBF7;

  --line:rgba(22,34,74,.95);
  --line-soft:rgba(124,139,181,.24);
  --line-cyan:rgba(18,224,200,.42);
  --line-gold:rgba(245,194,67,.42);

  --font-display:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","Sarasa Mono SC","DejaVu Sans Mono",Consolas,"Courier New",monospace;

  --fs-1:17px; --fs-2:22px; --fs-3:30px; --fs-4:40px; --fs-5:56px; --fs-6:88px;

  --wrap-max:1180px;
  --gutter:clamp(18px,4vw,40px);

  --radius-card:24px;
  --radius-soft:16px;
  --radius-pill:999px;

  --ease:cubic-bezier(.22,1,.36,1);
  --t-fast:240ms;
  --t-mid:320ms;
  --t-slow:420ms;

  --tilt:-2.5deg;
  --header-h:96px;
}

/* ── 2. Reset ──────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit}
table{border-collapse:collapse;width:100%}

/* ── 3. 基座与背景光晕 ─────────────────────────────────── */
body{
  font-family:var(--font-body);
  font-size:var(--fs-1);
  line-height:1.85;
  color:var(--fog);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 78% -10%, rgba(18,224,200,.16), transparent 62%),
    radial-gradient(720px 480px at 6% 16%, rgba(245,194,67,.10), transparent 66%),
    radial-gradient(1200px 700px at 50% 118%, rgba(30,42,82,.75), transparent 72%);
  background-attachment:fixed;
  overflow-x:clip;
}
body::before{
  content:"";
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:repeating-linear-gradient(92.5deg, rgba(124,139,181,.055) 0 1px, transparent 1px 88px);
}
body::after{
  content:"";
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(38% 32% at 72% 22%, rgba(18,224,200,.20), transparent 70%),
    radial-gradient(30% 26% at 22% 76%, rgba(245,194,67,.13), transparent 72%),
    radial-gradient(24% 22% at 88% 84%, rgba(255,61,127,.10), transparent 76%);
  animation:drift 24s ease-in-out infinite alternate;
}
@keyframes drift{
  from{transform:translate3d(-20px,-14px,0) scale(1)}
  to{transform:translate3d(18px,20px,0) scale(1.04)}
}
::selection{background:rgba(18,224,200,.3);color:var(--pale)}

/* ── 4. 排版 ───────────────────────────────────────────── */
h1,h2,h3,h4,h5{
  font-family:var(--font-display);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.1;
  color:var(--pale);
  text-wrap:balance;
}
.t-display{font-size:clamp(46px,9vw,88px);line-height:1.02}
.t-h1{font-size:clamp(36px,6vw,56px)}
.t-h2{font-size:clamp(28px,4vw,40px)}
.t-h3{font-size:clamp(23px,2.6vw,30px)}
.t-h4{font-size:var(--fs-2);line-height:1.35}
.lede{font-size:var(--fs-2);line-height:1.7;color:var(--fog);max-width:68ch}
.copy{max-width:68ch}
.mono{font-family:var(--font-mono);font-size:16px;letter-spacing:.02em}
strong{color:var(--pale);font-weight:700}
p + p{margin-top:1.1em}

/* ── 5. 布局工具 ──────────────────────────────────────── */
.wrap{
  width:min(calc(100% - (var(--gutter) * 2)), var(--wrap-max));
  margin-inline:auto;
}
.section{padding-block:clamp(64px,8vw,96px)}
.section-head{display:flex;flex-direction:column;gap:14px;margin-bottom:clamp(28px,4vw,48px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{
  content:"";width:8px;height:8px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 14px rgba(18,224,200,.9);
}
.grid-12{display:grid;grid-template-columns:1fr;gap:clamp(16px,2vw,28px)}
.offset-drop{margin-top:clamp(24px,5vw,96px)}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}
.fiber-path{
  position:relative;height:2px;border-radius:2px;
  background:linear-gradient(90deg,transparent,rgba(18,224,200,.7),rgba(245,194,67,.85),transparent);
}
.fiber-path::after{
  content:"";position:absolute;right:0;top:50%;width:10px;height:10px;
  transform:translateY(-50%) rotate(45deg);
  background:var(--gold);box-shadow:0 0 18px rgba(245,194,67,.9);
}

/* ── 6. 按钮 / 胶囊 / 标签 ─────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:var(--radius-pill);
  font-size:16px;font-weight:600;line-height:1;text-decoration:none;
  border:1px solid transparent;white-space:nowrap;
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),
             background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),
             border-color var(--t-fast) var(--ease);
}
.btn--gold{
  background:linear-gradient(120deg,var(--gold),#FFD77A);color:#08111F;
  box-shadow:0 18px 34px -20px rgba(245,194,67,.9);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 22px 40px -18px rgba(245,194,67,.95)}
.btn--cyan{
  background:linear-gradient(120deg,var(--cyan),#6CF3E4);color:#052018;
  box-shadow:0 18px 34px -20px rgba(18,224,200,.85);
}
.btn--cyan:hover{transform:translateY(-2px)}
.btn--ghost{border-color:var(--line-cyan);color:var(--pale);background:rgba(18,224,200,.06)}
.btn--ghost:hover{background:rgba(18,224,200,.14);transform:translateY(-2px)}
.btn--alert{border-color:rgba(255,61,127,.55);color:#FFD9E6;background:rgba(255,61,127,.12)}
.btn--alert:hover{background:rgba(255,61,127,.2)}

.pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:9px 18px;border-radius:var(--radius-pill);
  font-size:14px;line-height:1;text-decoration:none;white-space:nowrap;
  border:1px solid var(--line-soft);color:var(--fog);background:rgba(30,42,82,.55);
  transition:color var(--t-fast) var(--ease),background var(--t-fast) var(--ease),
             border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.pill:hover{
  color:var(--pale);border-color:var(--line-cyan);
  box-shadow:0 0 0 1px rgba(18,224,200,.3),0 14px 26px -18px rgba(18,224,200,.9);
}
.pill--quiet{background:transparent;color:var(--dust)}
.pill--gold{
  background:linear-gradient(120deg,var(--gold),#FFD77A);border-color:var(--gold);
  color:#08111F;font-weight:600;
}
.pill--gold:hover{color:#08111F;box-shadow:0 14px 30px -16px rgba(245,194,67,.95)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;
  border:1px solid var(--line-soft);color:var(--dust);
}
.tag--cyan{color:var(--cyan);border-color:var(--line-cyan);background:rgba(18,224,200,.08)}
.tag--gold{color:var(--gold);border-color:var(--line-gold);background:rgba(245,194,67,.08)}
.tag--magenta{color:var(--magenta);border-color:rgba(255,61,127,.45);background:rgba(255,61,127,.1)}

.copy-btn{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  padding:4px 11px;border-radius:var(--radius-pill);
  border:1px solid var(--line-soft);color:var(--dust);
  transition:color var(--t-fast) var(--ease),background var(--t-fast) var(--ease),
             border-color var(--t-fast) var(--ease);
}
.copy-btn:hover{color:var(--pale);border-color:var(--line-cyan)}
.copy-btn[data-copied]{background:var(--gold);border-color:var(--gold);color:#08111F}

/* ── 7. 容器组件 ──────────────────────────────────────── */
.card{
  background:var(--ink-800);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:clamp(20px,3vw,32px);
}
.card--float{
  background:var(--ink-600);
  border-color:rgba(18,224,200,.34);
  box-shadow:0 34px 60px -42px rgba(0,0,0,.98),0 0 0 1px rgba(18,224,200,.06) inset;
}
.console{
  background:linear-gradient(160deg,rgba(30,42,82,.92),rgba(14,23,52,.96));
  border:1px solid rgba(18,224,200,.28);
  border-radius:var(--radius-card);
  box-shadow:0 34px 64px -44px rgba(0,0,0,1);
  padding:clamp(20px,3vw,32px);
}
.mono-block{
  font-family:var(--font-mono);font-size:16px;line-height:1.9;
  color:var(--pale);background:var(--ink-600);
  border-radius:var(--radius-soft);border-left:3px solid var(--cyan);
  padding:14px 18px;
}
.check-item{
  display:flex;align-items:flex-start;gap:14px;width:100%;text-align:left;
  padding:16px 18px;border-radius:var(--radius-soft);
  border:1px solid var(--line-soft);background:rgba(14,23,52,.72);
  color:var(--fog);font-size:var(--fs-1);
  transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.check-item:hover{border-color:var(--line-cyan);background:rgba(30,42,82,.7)}
.check-item__box{
  flex:0 0 auto;width:22px;height:22px;margin-top:4px;border-radius:8px;
  border:1px solid rgba(124,139,181,.6);display:grid;place-items:center;
  transition:background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),
             box-shadow var(--t-fast) var(--ease);
}
.check-item[aria-pressed="true"]{border-color:var(--line-cyan)}
.check-item[aria-pressed="true"] .check-item__box{
  background:var(--cyan);border-color:var(--cyan);box-shadow:0 0 16px rgba(18,224,200,.65);
}
.check-item[aria-pressed="true"] .check-item__box::after{
  content:"";width:10px;height:6px;border-left:2px solid #05231E;border-bottom:2px solid #05231E;
  transform:rotate(-45deg) translate(1px,-2px);
}
.ring{
  position:relative;width:var(--ring-size,64px);aspect-ratio:1;border-radius:50%;
  display:grid;place-items:center;
  background:conic-gradient(from -90deg,
    var(--ring-color,var(--cyan)) calc(var(--ring-progress,0) * 1%),
    rgba(22,34,74,.85) 0);
  transition:transform var(--t-mid) var(--ease);
}
.ring::before{content:"";position:absolute;inset:6px;border-radius:50%;background:var(--ink-800)}
.ring__value{position:relative;font-family:var(--font-mono);font-size:14px;color:var(--pale)}
.status-dot{
  display:inline-block;width:9px;height:9px;border-radius:50%;
  background:var(--dust);vertical-align:middle;
}
.status-dot--ok{background:var(--cyan);box-shadow:0 0 12px rgba(18,224,200,.9)}
.status-dot--warn{background:var(--gold);box-shadow:0 0 12px rgba(245,194,67,.9)}
.status-dot--alert{background:var(--magenta);box-shadow:0 0 12px rgba(255,61,127,.9)}

/* ── 8. 视觉容器（页面阶段放图） ──────────────────────── */
.media{
  position:relative;display:block;width:100%;aspect-ratio:16/10;
  border-radius:var(--radius-card);overflow:hidden;isolation:isolate;
  border:1px solid var(--line-soft);background:var(--ink-800);
}
.media::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(120% 90% at 18% 8%, rgba(18,224,200,.30), transparent 58%),
    radial-gradient(90% 80% at 88% 92%, rgba(245,194,67,.20), transparent 60%),
    linear-gradient(145deg,var(--ink-700),var(--ink-900));
}
.media > img,.media > video{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:2/1}
.media--square{aspect-ratio:1/1}
.media--portrait{aspect-ratio:4/5}
.media--wave::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.7;
  background-image:repeating-linear-gradient(115deg, rgba(232,251,247,.10) 0 1px, transparent 1px 22px);
}
.media--glow{box-shadow:0 0 0 1px rgba(18,224,200,.25),0 40px 80px -50px rgba(18,224,200,.75)}
.media__veil{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,transparent 38%,rgba(7,12,31,.88));
}
.media__caption{
  position:absolute;left:18px;right:18px;bottom:14px;
  font-family:var(--font-mono);font-size:13px;line-height:1.6;color:var(--pale);
  text-shadow:0 1px 10px rgba(7,12,31,.95);
}
.figure{margin:0}

/* ── 9. 面包屑 ────────────────────────────────────────── */
.breadcrumb{
  font-family:var(--font-mono);font-size:13px;color:var(--dust);
  padding-block:18px 0;
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:rgba(124,139,181,.5)}
.breadcrumb a{text-decoration:none;color:var(--dust);transition:color var(--t-fast) var(--ease)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--pale)}

/* ── 10. 页头 ─────────────────────────────────────────── */
.skip-link{
  position:fixed;top:10px;left:50%;z-index:120;
  transform:translate(-50%,-160%);
  padding:12px 22px;border-radius:var(--radius-pill);
  background:var(--gold);color:#08111F;font-weight:700;text-decoration:none;
  transition:transform var(--t-fast) var(--ease);
}
.skip-link:focus{transform:translate(-50%,0)}

.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(7,12,31,.95),rgba(14,23,52,.88));
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t-mid) var(--ease),background var(--t-mid) var(--ease);
}
.site-header[data-compact]{box-shadow:0 22px 50px -34px rgba(0,0,0,1)}

.header-masthead{
  max-width:var(--wrap-max);margin-inline:auto;
  padding:20px var(--gutter) 12px;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;
  transition:padding var(--t-slow) var(--ease);
}
.header-slot{display:flex;align-items:center;gap:10px;min-width:0}
.header-slot--right{justify-content:flex-end}
.header-meta{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  color:var(--dust);white-space:nowrap;
}

.brand{
  display:inline-flex;align-items:baseline;gap:12px;
  text-decoration:none;color:var(--pale);
  font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;line-height:1;
  font-size:clamp(30px,4.6vw,56px);
  transition:font-size var(--t-slow) var(--ease),transform var(--t-slow) var(--ease);
}
.brand-name{white-space:nowrap}
.brand-mark{
  align-self:center;width:12px;height:12px;border-radius:50%;
  background:radial-gradient(circle at 34% 34%, var(--pale), var(--cyan) 55%, rgba(18,224,200,0));
  box-shadow:0 0 20px rgba(18,224,200,.75);
}
.brand-tail{
  align-self:flex-end;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;
  color:var(--gold);padding-bottom:4px;
}
.site-header[data-compact] .header-masthead{
  display:flex;justify-content:space-between;align-items:center;
  padding-block:10px;
}
.site-header[data-compact] .header-slot--left{display:none}
.site-header[data-compact] .brand{font-size:clamp(20px,2.6vw,28px);margin-right:auto}
.site-header[data-compact] .brand-mark{width:9px;height:9px}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:9px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line-soft);color:var(--fog);
  font-size:14px;line-height:1;
  transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.nav-toggle:hover{border-color:var(--line-cyan);color:var(--pale)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px}
.nav-toggle__bars i{
  display:block;width:16px;height:2px;border-radius:2px;background:currentColor;
  transition:transform var(--t-fast) var(--ease),opacity var(--t-fast) var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.site-nav{border-top:1px solid rgba(22,34,74,.7)}
.nav-list{
  max-width:var(--wrap-max);margin-inline:auto;
  padding:0 var(--gutter);
  display:flex;justify-content:center;flex-wrap:wrap;gap:2px;
}
.nav-list a{
  position:relative;display:inline-block;
  padding:12px 16px 15px;
  font-size:15px;letter-spacing:.04em;text-decoration:none;color:var(--dust);
  transition:color var(--t-fast) var(--ease);
}
.nav-list a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:5px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--gold));
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--t-mid) var(--ease);
}
.nav-list a:hover{color:var(--pale)}
.nav-list a:hover::after{transform:scaleX(1)}
.nav-list a[aria-current="page"]{color:var(--pale);font-weight:600}
.nav-list a[aria-current="page"]::after{transform:scaleX(1)}

.read-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:3px;
  background:rgba(22,34,74,.9);overflow:hidden;
}
.read-progress__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--gold));
  box-shadow:0 0 14px rgba(18,224,200,.65);
  transition:width 180ms linear;
}

/* ── 11. 页脚 ─────────────────────────────────────────── */
.site-footer{
  margin-top:clamp(64px,8vw,120px);
  padding-top:2px;
  background:linear-gradient(180deg,rgba(14,23,52,.92),var(--ink-900) 62%);
  border-top:1px solid var(--line);
  font-size:16px;
}
.footer-beam{
  height:2px;
  background:linear-gradient(90deg,transparent,var(--cyan),var(--gold),transparent);
  box-shadow:0 0 24px rgba(18,224,200,.5);
}
.footer-top{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:12px;padding-block:clamp(32px,5vw,52px) clamp(18px,2.5vw,26px);
}
.footer-brand{
  display:inline-flex;align-items:baseline;gap:10px;
  font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;
  font-size:clamp(22px,3vw,30px);color:var(--pale);text-decoration:none;
}
.footer-brand__tail{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;color:var(--gold);
}
.footer-top__note{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.1em;color:var(--dust);
}
.footer-grid{
  display:grid;grid-template-columns:1fr 1.25fr 1fr;
  gap:clamp(28px,4vw,56px);
  padding-bottom:clamp(32px,5vw,56px);
}
.footer-col{display:flex;flex-direction:column;gap:16px;min-width:0}
.footer-heading{
  font-size:14px;font-weight:700;letter-spacing:.18em;
  font-family:var(--font-mono);color:var(--cyan);
}
.footer-list{display:grid;gap:10px}
.footer-list a{
  text-decoration:none;color:var(--fog);font-size:15.5px;
  transition:color var(--t-fast) var(--ease),padding-left var(--t-fast) var(--ease);
}
.footer-list a:hover{color:var(--cyan);padding-left:6px}
.footer-list--legal{
  margin-top:6px;padding-top:14px;
  border-top:1px solid var(--line-soft);
  grid-template-columns:repeat(2,minmax(0,auto));
  gap:8px 22px;
}
.footer-list--legal a{font-size:14px;color:var(--dust)}
.footer-contacts{display:grid;gap:14px}
.footer-contact{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.footer-label{
  flex:0 0 auto;font-size:13px;letter-spacing:.12em;
  font-family:var(--font-mono);color:var(--dust);
}
.footer-value{color:var(--pale);word-break:break-all}
.footer-note{font-size:14px;line-height:1.75;color:var(--dust);max-width:52ch}
.footer-signal{font-size:15.5px;line-height:1.8;color:var(--fog);max-width:38ch}
.footer-col--signal{align-items:flex-start}
.footer-base{
  display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;
  padding-block:20px clamp(24px,4vw,40px);
  border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:13px;color:var(--dust);
}
.footer-copyline{color:var(--dust)}

/* ── 12. 章节高亮 / 路径指示 / 显现 ───────────────────── */
[data-chapter]{scroll-margin-top:140px}
.chapter-title{transition:color var(--t-slow) var(--ease)}
[data-chapter] .chapter-title{color:var(--dust)}
[data-chapter].is-current .chapter-title{color:var(--pale)}
.chapter-title::before{
  content:"";display:block;width:22px;height:2px;margin-bottom:16px;border-radius:2px;
  background:var(--line-soft);transition:background var(--t-slow) var(--ease),width var(--t-slow) var(--ease);
}
[data-chapter].is-current .chapter-title::before{
  background:linear-gradient(90deg,var(--cyan),var(--gold));width:56px;
}
.path-rail{
  position:fixed;right:clamp(10px,2vw,26px);top:50%;z-index:40;
  transform:translateY(-50%);
  display:flex;flex-direction:column;align-items:center;gap:16px;
}
.path-rail__dot{
  display:block;width:10px;height:10px;padding:0;border-radius:50%;
  border:1px solid rgba(124,139,181,.6);background:transparent;text-decoration:none;
  transition:background var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease),
             box-shadow var(--t-mid) var(--ease);
}
.path-rail__dot:hover{border-color:var(--cyan)}
.path-rail__dot.is-active{
  background:var(--cyan);border-color:var(--cyan);
  box-shadow:0 0 0 5px rgba(18,224,200,.15),0 0 18px rgba(18,224,200,.85);
}
.reveal{opacity:0;transform:translateY(22px);
  transition:opacity var(--t-slow) var(--ease),transform var(--t-slow) var(--ease);}
.reveal.is-visible{opacity:1;transform:none}

/* ── 13. 焦点与可访问性 ───────────────────────────────── */
:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:6px;
}
.pill:focus-visible,.btn:focus-visible,.copy-btn:focus-visible,.nav-toggle:focus-visible{
  outline-offset:4px;
}

/* ── 14. 响应式 ───────────────────────────────────────── */
@media (min-width:901px){
  .grid-12{grid-template-columns:repeat(12,1fr)}
  .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-12{grid-column:span 12}
}
@media (max-width:1100px){
  .path-rail{display:none}
}
@media (max-width:880px){
  :root{--header-h:72px}
  .header-masthead{padding:14px var(--gutter) 10px}
  .brand{font-size:clamp(26px,7vw,34px)}
  .brand-tail{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{
    display:none;max-height:76vh;overflow-y:auto;
    background:linear-gradient(180deg,rgba(14,23,52,.99),rgba(7,12,31,.99));
    padding-bottom:14px;
  }
  .site-nav[data-open]{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:10px var(--gutter) 0}
  .nav-list a{
    padding:15px 6px;font-size:17px;
    border-bottom:1px solid rgba(22,34,74,.75);
  }
  .nav-list a::after{left:6px;right:auto;width:24px;bottom:10px}
  .site-header[data-compact] .header-masthead{display:flex}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .footer-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-list--legal{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-signal,.footer-note{max-width:none}
}
@media (max-width:560px){
  .header-meta{display:none}
  .pill--quiet{display:none}
  .brand{font-size:clamp(24px,7.6vw,30px)}
  .lede{font-size:19px}
  .footer-top{flex-direction:column;align-items:flex-start}
  .footer-base{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
}

/* ── 15. 减少动效 ─────────────────────────────────────── */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  body::after{animation:none}
  .reveal{opacity:1;transform:none}
}