/* ===========================================================
   天天游艺 · 全站共享样式 /assets/site.css
   夜间游艺场 × 技术蓝图网格
   =========================================================== */

:root{
  --night:#2A1B3D;
  --dusk:#4B2E6B;
  --gold:#E8B04B;
  --gold-deep:#C98F2E;
  --gold-light:#FFD98A;
  --snow:#A8D8DC;
  --pome:#C8384E;
  --cream:#F5EFE6;
  --sand:#D9C3A5;
  --stone:#6E6673;
  --ink:#14101C;

  --grad-angle:135deg;
  --bg-page:linear-gradient(var(--grad-angle), #1B1129 0%, #2A1B3D 44%, #3D2657 100%);

  --line:rgba(110,102,115,.22);
  --line-gold:rgba(232,176,75,.35);
  --hair:1px solid rgba(217,195,165,.14);

  --radius-s:10px;
  --radius-m:18px;
  --radius-l:28px;
  --radius-pill:999px;

  --shell:min(1200px, calc(100% - 48px));
  --header-h:88px;
  --header-h-solid:64px;

  --ease:cubic-bezier(.22,.8,.28,1);
  --shadow-lift:0 24px 60px rgba(10,7,18,.55);
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-display:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","Menlo","Consolas","Courier New",monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;background-color:#1B1129;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:18px;
  line-height:1.9;
  color:var(--cream);
  background:transparent;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--font-display);font-weight:800;line-height:1.24;letter-spacing:.005em;color:var(--cream)}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--gold-light);text-decoration:none;transition:color .24s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease),opacity .24s var(--ease)}
a:hover{color:var(--gold)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,svg,video{display:block;max-width:100%}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--gold-light);outline-offset:3px;border-radius:6px}
::selection{background:rgba(232,176,75,.35);color:var(--cream)}

/* ---------- 背景层：渐变 + 蓝图网格 ---------- */
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background-image:var(--bg-page);
  background-size:cover;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(90deg, rgba(110,102,115,.18) 1px, transparent 1px),
    linear-gradient(180deg, rgba(110,102,115,.18) 1px, transparent 1px);
  background-size:90px 90px;
  -webkit-mask-image:radial-gradient(130% 95% at 50% 0%, #000 0%, rgba(0,0,0,.34) 58%, transparent 100%);
  mask-image:radial-gradient(130% 95% at 50% 0%, #000 0%, rgba(0,0,0,.34) 58%, transparent 100%);
}

#main-content{display:block;scroll-margin-top:calc(var(--header-h-solid) + 20px)}

/* ---------- 布局通用 ---------- */
.wrap{width:var(--shell);margin-inline:auto}
.page-body{padding-top:calc(var(--header-h-solid) + 32px);padding-bottom:72px;position:relative;z-index:1}
.section{position:relative;padding:56px 0}
.section__head{margin-bottom:28px;max-width:760px}
.section__title{font-size:clamp(26px,3.4vw,40px);font-weight:900;letter-spacing:.01em}
.section__lead{margin-top:12px;color:rgba(245,239,230,.78);font-size:17px;max-width:34ch}
.section__num{
  display:block;
  font-family:var(--font-display);
  font-weight:300;
  font-size:clamp(64px,12vw,160px);
  line-height:.84;
  letter-spacing:-.05em;
  color:transparent;
  -webkit-text-stroke:1px rgba(245,239,230,.3);
  margin-bottom:8px;
  user-select:none;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--sand);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--line-gold)}
.prose{max-width:34em;font-size:18px;line-height:1.9;color:rgba(245,239,230,.86)}
.prose h2,.prose h3{margin:1.6em 0 .6em}
.prose h2{font-size:24px}
.prose h3{font-size:20px}
.prose strong{color:var(--gold-light);font-weight:700}
.divider{height:1px;border:0;background:linear-gradient(90deg,var(--line-gold),transparent);margin:32px 0}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:24px}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 26px;
  border-radius:var(--radius-pill);
  font-family:var(--font-display);
  font-size:15px;
  font-weight:800;
  letter-spacing:.06em;
  white-space:nowrap;
  border:1px solid transparent;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.btn--gold{
  background:linear-gradient(150deg,var(--gold-light),var(--gold) 52%,var(--gold-deep));
  color:var(--night);
  box-shadow:0 0 0 1px rgba(255,217,138,.45),0 12px 26px rgba(232,176,75,.28);
}
.btn--gold:hover{color:var(--ink);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,217,138,.7),0 18px 34px rgba(232,176,75,.4)}
.btn--ghost{border-color:var(--line-gold);color:var(--cream);background:rgba(75,46,107,.24)}
.btn--ghost:hover{border-color:var(--gold);background:rgba(232,176,75,.14);color:var(--gold-light)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}

/* ---------- 卡片 / 面板 / 标签 ---------- */
.card{
  position:relative;
  padding:26px 24px;
  border-radius:var(--radius-l);
  border:1px solid var(--hair);
  background:linear-gradient(160deg, rgba(75,46,107,.52), rgba(27,17,41,.72));
  box-shadow:var(--shadow-lift);
}
.panel{
  position:relative;
  padding:28px;
  border-radius:var(--radius-m);
  border:1px solid var(--line-gold);
  background:linear-gradient(170deg, rgba(42,27,61,.86), rgba(20,16,28,.86));
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--night);
  background:var(--snow);
}
.badge--snow{background:var(--snow);color:#16323A}
.badge--pome{background:var(--pome);color:var(--cream)}
.tag{
  display:inline-block;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(168,216,220,.4);
  color:var(--snow);
  font-size:13px;
  letter-spacing:.06em;
}

/* ---------- 横向吸附步骤条 ---------- */
.steps{
  display:flex;
  gap:16px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:10px 4px 22px;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
  scrollbar-color:rgba(232,176,75,.5) transparent;
}
.steps::-webkit-scrollbar{height:6px}
.steps::-webkit-scrollbar-thumb{background:rgba(232,176,75,.45);border-radius:999px}
.step{
  flex:0 0 clamp(240px,32%,320px);
  scroll-snap-align:start;
  padding:24px 22px;
  border-radius:var(--radius-m);
  border:1px solid var(--hair);
  background:linear-gradient(160deg, rgba(75,46,107,.5), rgba(20,16,28,.75));
  transition:border-color .26s var(--ease),transform .26s var(--ease);
}
.step:hover{border-color:var(--line-gold);transform:translateY(-3px)}
.step__num{
  display:block;
  font-family:var(--font-mono);
  font-size:30px;
  line-height:1;
  letter-spacing:.04em;
  color:var(--gold);
  margin-bottom:12px;
}
.step__title{font-size:19px;font-weight:800;margin-bottom:8px}
.step__text{font-size:16px;line-height:1.8;color:rgba(245,239,230,.76);margin:0}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:rgba(217,195,165,.72);
  margin-bottom:28px;
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:10px}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:rgba(217,195,165,.4)}
.breadcrumb__link{color:rgba(217,195,165,.86)}
.breadcrumb__link:hover{color:var(--gold-light)}

/* ---------- 图像容器 ---------- */
.media{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-m);
  border:1px solid var(--hair);
  background:linear-gradient(150deg, rgba(75,46,107,.6), rgba(20,16,28,.9));
}
.media__frame{
  width:100%;
  aspect-ratio:16/10;
  display:grid;
  place-items:center;
  padding:20px;
  text-align:center;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:rgba(245,239,230,.5);
  background:
    radial-gradient(120% 90% at 22% 8%, rgba(232,176,75,.26), transparent 62%),
    radial-gradient(100% 80% at 88% 92%, rgba(168,216,220,.16), transparent 60%),
    linear-gradient(150deg, rgba(75,46,107,.92), rgba(20,16,28,.96));
}
.media__img{width:100%;aspect-ratio:16/10;object-fit:cover}
.media__img--tall{aspect-ratio:4/5}
.media__img--wide{aspect-ratio:21/9}
.media__cap{
  margin:10px 0 0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--sand);
}

/* ---------- 光斑装饰 ---------- */
.glow{
  position:absolute;
  border-radius:50%;
  pointer-events:none;
  filter:blur(70px);
  opacity:.5;
  z-index:0;
  animation:glow-drift 18s ease-in-out infinite alternate;
}
.glow--a{width:44vmax;height:44vmax;top:-14vmax;left:-10vmax;background:radial-gradient(circle,rgba(232,176,75,.55),transparent 66%)}
.glow--b{width:36vmax;height:36vmax;top:-8vmax;right:-12vmax;background:radial-gradient(circle,rgba(168,216,220,.42),transparent 68%);animation-delay:-6s}
.glow--c{width:40vmax;height:40vmax;bottom:-18vmax;left:26%;background:radial-gradient(circle,rgba(200,56,78,.34),transparent 70%);animation-delay:-11s}
@keyframes glow-drift{
  from{transform:translate3d(0,0,0)}
  to{transform:translate3d(28px,30px,0)}
}

/* ---------- 显现 ---------- */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}
[data-reveal="num"]{transform:scale(.9);transition:opacity .7s var(--ease),transform .7s var(--ease)}
[data-reveal="num"].is-visible{transform:scale(1)}

/* ---------- 手风琴 / 标签组协议 ---------- */
[data-toggle-group] > [data-toggle-item]{
  border-bottom:1px solid var(--hair);
  transition:border-color .26s var(--ease);
}
[data-toggle-group] > [data-toggle-item][data-open]{border-bottom-color:var(--line-gold)}

/* ===========================================================
   页头
   =========================================================== */
.skip-link{
  position:fixed;
  top:-64px;
  left:16px;
  z-index:120;
  padding:12px 20px;
  border-radius:0 0 var(--radius-s) var(--radius-s);
  background:var(--gold);
  color:var(--night);
  font-weight:800;
  letter-spacing:.06em;
  transition:top .24s var(--ease);
}
.skip-link:focus{top:0;color:var(--night)}

.progress-rail{
  position:fixed;
  top:0;left:0;right:0;
  height:3px;
  z-index:90;
  background:rgba(110,102,115,.18);
  pointer-events:none;
}
.progress-rail__bar{
  display:block;
  height:100%;
  width:100%;
  transform-origin:0 50%;
  transform:scaleX(0);
  background:linear-gradient(90deg,var(--gold-deep),var(--gold-light),var(--snow));
  box-shadow:0 0 12px rgba(232,176,75,.6);
}

.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .32s var(--ease),border-color .32s var(--ease),box-shadow .32s var(--ease);
}
.site-header.is-solid{
  background:rgba(27,17,41,.96);
  border-bottom-color:rgba(232,176,75,.24);
  box-shadow:0 14px 34px rgba(8,5,14,.45);
}
.header-shell{
  width:var(--shell);
  margin-inline:auto;
  display:flex;
  align-items:center;
  gap:20px;
  height:var(--header-h);
  transition:height .32s var(--ease);
}
.site-header.is-solid .header-shell{height:var(--header-h-solid)}

.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--cream)}
.brand:hover{color:var(--cream)}
.brand__glyph{
  display:grid;
  place-items:center;
  width:42px;height:42px;
  border-radius:14px;
  background:linear-gradient(150deg,var(--gold-light),var(--gold) 55%,var(--gold-deep));
  color:var(--night);
  font-family:var(--font-display);
  font-weight:900;
  font-size:20px;
  line-height:1;
  box-shadow:0 8px 20px rgba(232,176,75,.3);
}
.brand__text{display:flex;flex-direction:column;line-height:1.12}
.brand__name{font-family:var(--font-display);font-size:19px;font-weight:900;letter-spacing:.08em}
.brand__sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.24em;color:rgba(217,195,165,.7)}
.brand--footer .brand__name{font-size:22px}

.nav{flex:1 1 auto;display:flex;justify-content:center}
.nav__list{display:flex;align-items:center;gap:2px}
.nav__item{display:block}
.nav__link{
  display:block;
  padding:9px 14px;
  border-radius:var(--radius-pill);
  font-size:15px;
  letter-spacing:.05em;
  color:rgba(245,239,230,.76);
  border:1px solid transparent;
}
.nav__link:hover{color:var(--gold-light);background:rgba(232,176,75,.12);border-color:rgba(232,176,75,.28)}
.nav__link[aria-current="page"]{
  color:var(--night);
  background:linear-gradient(150deg,var(--gold-light),var(--gold));
  border-color:rgba(255,217,138,.8);
  font-weight:800;
  box-shadow:0 6px 18px rgba(232,176,75,.32);
}
.nav__foot{display:none}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.rule-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(168,216,220,.45);
  color:var(--snow);
  font-size:14px;
  letter-spacing:.1em;
  background:rgba(168,216,220,.08);
}
.rule-link:hover{color:#D8F2F4;border-color:var(--snow);background:rgba(168,216,220,.18)}
.rule-link__dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--snow);
  box-shadow:0 0 10px rgba(168,216,220,.9);
  animation:rule-pulse 2.6s ease-in-out infinite;
}
@keyframes rule-pulse{0%,100%{opacity:1}50%{opacity:.35}}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:10px 16px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-gold);
  background:rgba(75,46,107,.4);
  color:var(--cream);
  font-size:14px;
  letter-spacing:.12em;
}
.nav-toggle__bars{position:relative;display:block;width:20px;height:2px;background:var(--gold);border-radius:2px}
.nav-toggle__bars::before,
.nav-toggle__bars::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--gold);border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease)}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 移动端底部三格栏 ---------- */
.mobile-dock{display:none}

/* ===========================================================
   页脚
   =========================================================== */
.site-footer{
  position:relative;
  z-index:2;
  background:linear-gradient(180deg, rgba(27,17,41,.94), #14101C 62%);
  border-top:1px solid rgba(232,176,75,.24);
  color:rgba(245,239,230,.8);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,217,138,.75),transparent);
}
.footer-inner{padding:60px 0 34px}
.footer-top{
  display:grid;
  grid-template-columns:minmax(240px,1fr) 2.6fr;
  gap:48px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(217,195,165,.14);
}
.footer-brand{display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.footer-brand__note{margin:0;font-size:15px;line-height:1.85;color:rgba(245,239,230,.7);max-width:30ch}
.footer-stamp{
  margin:0;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--gold);
}
.footer-cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px}
.footer-col{min-width:0}
.footer-col__title{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--gold);
  margin:0 0 16px;
}
.footer-col__list{display:flex;flex-direction:column;gap:10px}
.footer-col__item{font-size:15px;line-height:1.7}
.footer-col__link{color:rgba(245,239,230,.78);border-bottom:1px solid transparent;padding-bottom:2px}
.footer-col__link:hover{color:var(--gold-light);border-bottom-color:rgba(232,176,75,.6)}
.footer-text{color:rgba(245,239,230,.62);word-break:break-word}
.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 26px;
  padding-top:26px;
  font-size:13px;
  color:rgba(245,239,230,.6);
}
.footer-base__icp{
  margin:0;
  font-family:var(--font-mono);
  letter-spacing:.1em;
  color:var(--sand);
  padding:6px 14px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(217,195,165,.28);
  background:rgba(217,195,165,.06);
}
.footer-base__region{margin:0;max-width:44ch}
.footer-legal{display:flex;flex-wrap:wrap;gap:18px;margin-left:auto}
.footer-legal__link{font-size:13px;letter-spacing:.08em;color:rgba(245,239,230,.72)}
.footer-legal__link:hover{color:var(--gold-light)}
.footer-copy{margin:0;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:rgba(245,239,230,.5)}

/* ---------- 返回顶部灯笼 ---------- */
.to-top{
  position:fixed;
  right:26px;
  bottom:30px;
  z-index:70;
  width:54px;
  height:62px;
  display:grid;
  place-items:center;
  border-radius:27px 27px 20px 20px;
  background:linear-gradient(180deg,var(--gold-light),var(--gold) 58%,var(--gold-deep));
  color:var(--night);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.14em;
  box-shadow:0 0 0 1px rgba(255,217,138,.5),0 16px 34px rgba(232,176,75,.32);
  opacity:0;
  transform:translateY(16px) scale(.9);
  pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.to-top.is-visible{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{transform:translateY(-3px)}
.to-top__glow{
  position:absolute;
  inset:-12px;
  border-radius:inherit;
  background:radial-gradient(circle,rgba(232,176,75,.42),transparent 68%);
  filter:blur(8px);
  z-index:-1;
}
.to-top__label{position:relative}

/* ===========================================================
   响应式
   =========================================================== */
@media (max-width:1180px){
  .nav__link{font-size:14px;padding:9px 10px}
  .header-actions{gap:8px}
}

@media (max-width:1023px){
  :root{--header-h:74px;--header-h-solid:60px}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-legal{margin-left:0}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}

  .nav{
    position:fixed;
    inset:0;
    z-index:58;
    flex-direction:column;
    justify-content:center;
    align-items:stretch;
    padding:calc(var(--header-h-solid) + 36px) 28px 132px;
    background:linear-gradient(190deg,#3D2657 0%,#1B1129 72%);
    transform:translateY(-102%);
    visibility:hidden;
    transition:transform .34s var(--ease),visibility .34s linear;
  }
  .nav[data-open]{transform:translateY(0);visibility:visible}
  .nav__list{flex-direction:column;align-items:stretch;gap:4px}
  .nav__item{border-bottom:1px solid rgba(217,195,165,.14)}
  .nav__item:last-child{border-bottom:0}
  .nav__link{font-size:20px;font-weight:700;padding:18px 12px;border-radius:0}
  .nav__link[aria-current="page"]{background:transparent;color:var(--gold);border-color:transparent;box-shadow:none}
  .nav__link[aria-current="page"]::before{content:"◆ ";color:var(--gold)}
  .nav__foot{
    display:block;
    margin:26px 0 0;
    font-family:var(--font-mono);
    font-size:12px;
    letter-spacing:.18em;
    text-transform:uppercase;
    color:rgba(217,195,165,.7);
  }
  .nav-toggle{display:inline-flex}
  .rule-link{display:none}
  body.nav-open{overflow:hidden}
  body.nav-open .mobile-dock{opacity:0;pointer-events:none}
}

@media (max-width:767px){
  :root{--shell:calc(100% - 32px)}
  body{font-size:17px;padding-bottom:104px}
  .section{padding:40px 0}
  .page-body{padding-top:calc(var(--header-h-solid) + 20px);padding-bottom:56px}
  .grid--2,.grid--3{grid-template-columns:1fr;gap:18px}
  .footer-cols{grid-template-columns:1fr;gap:26px}
  .footer-base{flex-direction:column;align-items:flex-start}
  .card,.panel{padding:22px 20px}
  .step{flex-basis:min(84%,300px)}
  .to-top{right:16px;bottom:106px;width:48px;height:56px}

  .mobile-dock{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:6px;
    position:fixed;
    left:14px;right:14px;bottom:14px;
    z-index:80;
    padding:8px;
    border-radius:24px;
    border:1px solid rgba(232,176,75,.38);
    background:linear-gradient(160deg, rgba(61,38,87,.97), rgba(20,16,28,.97));
    box-shadow:0 20px 44px rgba(8,5,14,.6);
    transition:opacity .28s var(--ease);
  }
  .mobile-dock__item{
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:3px;
    padding:10px 4px;
    border-radius:17px;
    color:rgba(245,239,230,.84);
    font-size:14px;
    font-weight:700;
    letter-spacing:.08em;
  }
  .mobile-dock__num{font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:var(--gold)}
  .mobile-dock__word{line-height:1.2}
  .mobile-dock__item:nth-child(2){
    background:linear-gradient(150deg,var(--gold-light),var(--gold) 58%,var(--gold-deep));
    color:var(--night);
    box-shadow:0 8px 20px rgba(232,176,75,.34);
  }
  .mobile-dock__item:nth-child(2) .mobile-dock__num{color:rgba(20,16,28,.66)}
  .mobile-dock__item:hover{color:var(--gold-light)}
  .mobile-dock__item:nth-child(2):hover{color:var(--ink)}
}

@media (max-width:420px){
  .brand__sub{display:none}
  .header-shell{gap:10px}
}

/* ---------- 无障碍与动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .glow{animation:none}
  [data-reveal],[data-reveal="num"]{opacity:1 !important;transform:none !important}
  .to-top{transition:none}
}