/* /assets/site.css — LUCKY体 共享外壳与基础组件 */

/* ===== 1. Reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
html,body{margin:0;padding:0}
body{
  background:var(--navy-900);
  color:var(--on-dark);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img,svg,video{max-width:100%}
img{height:auto;border:0}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,h5,h6,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0}
table{border-collapse:collapse;width:100%}
a{color:var(--blue);text-decoration:none;transition:color .16s var(--ease)}
a:hover{color:var(--gold-soft)}
#main-content{scroll-margin-top:96px}

/* ===== 2. 变量 ===== */
:root{
  --navy-900:#060D1F;
  --navy-800:#0E2350;
  --navy-700:#1B3FA0;
  --blue:#2F7BFF;
  --gold:#F5B301;
  --gold-soft:#FFD873;
  --green:#17A45A;
  --orange:#FF6B2C;
  --paper:#F6F8FC;
  --ink:#0A0F1C;
  --slate:#5B6B85;
  --line:#22314F;
  --on-dark:#EAF1FF;
  --on-dark-dim:#9FB0CC;

  --font-display:'Archivo Black','Anton','Impact','PingFang SC','Microsoft YaHei',sans-serif;
  --font-head:'Barlow Semi Condensed','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-body:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  --font-note:'Barlow Semi Condensed','Noto Sans SC','PingFang SC',sans-serif;

  --shell:1280px;
  --gutter:24px;
  --header-h:88px;
  --header-h-compact:64px;
  --radius:4px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
@media (max-width:640px){:root{--gutter:18px}}

/* ===== 3. 焦点与无障碍 ===== */
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.visually-hidden{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}

.skip-link{
  position:fixed;left:16px;top:-120px;z-index:300;
  background:var(--gold);color:var(--ink);
  font-family:var(--font-head);font-weight:800;font-size:15px;
  padding:10px 18px;border-radius:0 0 var(--radius) var(--radius);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:0;color:var(--ink)}

/* ===== 4. 阅读进度（同时是幸运金顶线） ===== */
.site-progress{
  position:fixed;left:0;right:0;top:0;height:2px;z-index:250;
  background:var(--gold);pointer-events:none;
}
.site-progress__bar{
  display:block;height:100%;width:100%;
  background:linear-gradient(90deg,var(--blue),var(--gold-soft));
  transform-origin:0 50%;
  transform:scaleX(var(--progress,0));
  transition:transform .12s linear;
}

/* ===== 5. 头部 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.site-header[data-scrolled]{
  background:var(--navy-800);
  border-bottom-color:var(--line);
}
.site-header__inner{
  max-width:var(--shell);margin:0 auto;padding:0 var(--gutter);
  height:var(--header-h);
  display:flex;align-items:center;gap:28px;
  transition:height .2s var(--ease);
}
.site-header[data-scrolled] .site-header__inner{height:var(--header-h-compact)}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--on-dark)}
.brand:hover{color:#fff}
.brand__mark{display:block;width:40px;height:40px;flex:0 0 auto}
.brand__mark svg{display:block;width:100%;height:100%}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__name{font-family:var(--font-head);font-weight:900;font-size:20px;letter-spacing:.02em;color:#fff}
.brand__descriptor{font-family:var(--font-note);font-size:11.5px;letter-spacing:.14em;color:var(--on-dark-dim)}

.site-nav{margin-left:auto}
.site-nav__list{display:flex;align-items:center;gap:2px;list-style:none}
.site-nav__item{list-style:none}
.site-nav__link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:var(--radius);
  font-family:var(--font-head);font-weight:600;font-size:15px;letter-spacing:.02em;
  color:var(--on-dark-dim);
  transition:color .16s var(--ease),background-color .16s var(--ease);
}
.site-nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:0 50%;
  transition:transform .18s var(--ease);
}
.site-nav__link:hover{color:#fff;background:rgba(47,123,255,.1)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--gold)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}

.site-header__actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

.nav-toggle{
  position:relative;display:none;width:44px;height:44px;padding:0;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius);
  cursor:pointer;flex:0 0 auto;
  transition:border-color .16s var(--ease),background-color .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--blue);background:rgba(47,123,255,.12)}
.nav-toggle__bars{
  position:absolute;left:50%;top:50%;width:18px;height:2px;margin:0;
  background:var(--on-dark);transform:translate(-50%,-50%);
  transition:background-color .18s var(--ease);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--on-dark);
  transition:transform .2s var(--ease),background-color .18s 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);background:var(--gold)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-6px) rotate(-45deg);background:var(--gold)}
.nav-toggle__label{
  position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;
}

/* ===== 6. 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-head);font-weight:800;font-size:15px;letter-spacing:.02em;
  padding:11px 18px;border:1px solid transparent;border-radius:var(--radius);
  cursor:pointer;white-space:nowrap;text-align:center;
  transition:background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease);
}
.btn--gold{background:var(--gold);border-color:var(--gold);color:var(--ink)}
.btn--gold:hover{background:var(--gold-soft);border-color:var(--gold-soft);color:var(--ink);transform:translateY(-1px)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--on-dark)}
.btn--ghost:hover{border-color:var(--blue);color:#fff;background:rgba(47,123,255,.12)}
.btn--sm{padding:8px 14px;font-size:14px}
.btn--block{width:100%}
.section--paper .btn--ghost{border-color:#D8DFEC;color:var(--ink)}
.section--paper .btn--ghost:hover{border-color:var(--navy-700);color:var(--navy-700);background:rgba(27,63,160,.06)}

/* ===== 7. 页脚 ===== */
.site-footer{
  position:relative;background:var(--navy-900);
  border-top:2px solid var(--gold);
  color:var(--on-dark-dim);
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:
    linear-gradient(to right,var(--line) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 72%);
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 72%);
}
.site-footer__inner{position:relative;max-width:var(--shell);margin:0 auto;padding:72px var(--gutter) 0}

.site-footer__grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .8fr 1.2fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-col,.footer-contact{border-left:1px solid var(--line);padding-left:28px}

.footer-brand__title{
  font-family:var(--font-head);font-weight:900;font-size:28px;line-height:1.1;
  color:#fff;padding-bottom:10px;border-bottom:2px solid var(--gold);display:inline-block;
}
.footer-brand__text{margin-top:16px;font-size:14.5px;line-height:1.85;max-width:34ch;color:var(--on-dark-dim)}
.footer-brand__meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;list-style:none}
.footer-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--font-note);font-size:12px;letter-spacing:.1em;
  border:1px solid var(--line);border-radius:var(--radius);
  padding:5px 10px;color:var(--on-dark-dim);
}
.footer-chip__dot{width:6px;height:6px;background:var(--orange);border-radius:50%;box-shadow:0 0 0 3px rgba(255,107,44,.18)}

.footer-col__title{
  font-family:var(--font-note);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold);margin-bottom:18px;
}
.footer-col__list{list-style:none;display:flex;flex-direction:column;gap:11px}
.footer-col__link{
  position:relative;display:inline-block;padding-left:0;
  color:var(--on-dark-dim);font-size:15px;
  transition:color .16s var(--ease),padding-left .16s var(--ease);
}
.footer-col__link::before{
  content:"";position:absolute;left:0;top:50%;width:0;height:1px;background:var(--gold);
  transform:translateY(-50%);transition:width .16s var(--ease);
}
.footer-col__link:hover{color:#fff;padding-left:16px}
.footer-col__link:hover::before{width:10px}

.footer-contact__list{list-style:none;display:flex;flex-direction:column;gap:14px}
.footer-contact__row{display:flex;flex-direction:column;gap:3px}
.footer-contact__label{font-family:var(--font-note);font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--slate)}
.footer-contact__value{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:15px;color:var(--on-dark)}
.footer-contact__value a{color:var(--on-dark)}
.footer-contact__value a:hover{color:var(--gold)}
.footer-contact__note{margin-top:16px;font-size:12.5px;line-height:1.7;color:var(--slate);max-width:40ch}
.footer-contact__cta{margin-top:16px}

.copy-btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-note);font-size:12px;letter-spacing:.1em;
  padding:3px 9px;background:transparent;border:1px solid var(--line);border-radius:var(--radius);
  color:var(--on-dark-dim);cursor:pointer;
  transition:border-color .16s var(--ease),color .16s var(--ease),background-color .16s var(--ease);
}
.copy-btn:hover{border-color:var(--blue);color:#fff}
.copy-btn.is-copied{border-color:var(--green);color:var(--green)}

.site-footer__legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 28px;border-top:1px solid var(--line);
  padding:24px 0 40px;font-size:13px;color:var(--slate);
}
.site-footer__legal-links{display:flex;flex-wrap:wrap;gap:8px 20px;list-style:none}
.site-footer__legal-links a{color:var(--on-dark-dim);font-size:13px}
.site-footer__legal-links a:hover{color:var(--gold)}
.site-footer__icp,.site-footer__copyright{font-family:var(--font-note);font-size:12.5px;letter-spacing:.06em;color:var(--slate)}
.site-footer__hint{flex:1 1 100%;max-width:78ch;font-size:12.5px;color:var(--slate)}

/* ===== 8. 容器、分区与栅格 ===== */
.site-main{position:relative;display:block}
.offset-header{padding-top:var(--header-h)}
.container{width:100%;max-width:var(--shell);margin:0 auto;padding:0 var(--gutter)}
.section{position:relative;padding:96px 0}
.section--tight{padding:64px 0}
.section--paper{background:var(--paper);color:var(--ink)}
.section--paper a{color:var(--navy-700)}
.section--paper a:hover{color:var(--gold)}
.section--paper .exhibit__note,
.section--paper .lede{color:var(--slate)}
.section--paper .h-display,
.section--paper .prose h2{color:var(--ink)}
.section--paper .annot-vertical{color:var(--slate)}

.grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento__block{
  position:relative;overflow:hidden;
  background:var(--navy-800);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;
  transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.bento__block:hover{border-color:var(--gold)}
.bento__block--focus{
  background:linear-gradient(160deg,#0E2350 0%,#12306E 52%,#1B3FA0 100%);
  border-color:var(--navy-700);
}
.section--paper .bento__block{background:#FFFFFF;border-color:#DCE3F0;color:var(--ink)}

.sp-3{grid-column:span 3}
.sp-4{grid-column:span 4}
.sp-5{grid-column:span 5}
.sp-6{grid-column:span 6}
.sp-7{grid-column:span 7}
.sp-8{grid-column:span 8}
.sp-9{grid-column:span 9}
.sp-12{grid-column:span 12}
@media (min-width:768px) and (max-width:1023px){
  .sp-3,.sp-4,.sp-5,.sp-6{grid-column:span 6}
  .sp-7,.sp-8,.sp-9,.sp-12{grid-column:span 12}
}
@media (max-width:767px){
  .sp-3,.sp-4,.sp-5,.sp-6,.sp-7,.sp-8,.sp-9,.sp-12{grid-column:span 12}
  .section{padding:64px 0}
  .section--tight{padding:44px 0}
}

.divider-slash{height:72px;background:var(--navy-800);clip-path:polygon(0 0,100% 0,100% 100%,0 42%)}
.divider-slash--flip{clip-path:polygon(0 0,100% 58%,100% 100%,0 100%)}
.arc-top{border-radius:50% 50% 0 0 / 90px 90px 0 0;overflow:hidden}

/* ===== 9. 排版组件 ===== */
.h-display{font-family:var(--font-head);font-weight:900;line-height:1.05;letter-spacing:-.01em;color:#fff}
.h-xl{font-size:clamp(38px,6.4vw,72px)}
.h-lg{font-size:clamp(30px,4.6vw,52px)}
.h-md{font-size:clamp(24px,3.2vw,34px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-note);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold);
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--gold)}
.lede{font-size:clamp(16px,1.6vw,19px);line-height:1.8;color:var(--on-dark-dim);max-width:62ch}
.prose{max-width:68ch;font-size:17px;line-height:1.75}
.prose p{margin:0 0 18px}
.prose h2{font-family:var(--font-head);font-weight:900;font-size:clamp(26px,3.4vw,40px);line-height:1.15;color:#fff;margin:48px 0 16px}
.prose h3{font-family:var(--font-head);font-weight:800;font-size:22px;color:#fff;margin:32px 0 12px}
.prose ul,.prose ol{margin:0 0 18px;padding-left:22px}
.prose li{margin-bottom:8px}
.prose a{text-decoration:underline;text-underline-offset:3px}
.annot-vertical{
  writing-mode:vertical-rl;font-family:var(--font-note);font-size:12px;
  letter-spacing:.18em;text-transform:uppercase;color:var(--slate);
}

/* ===== 10. 数字与展览说明牌 ===== */
.score{
  display:inline-block;
  font-family:var(--font-display);font-style:normal;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;line-height:.9;color:var(--gold);
}
.score--xl{font-size:clamp(64px,12vw,160px)}
.score--lg{font-size:clamp(48px,8vw,96px)}
.score--md{font-size:clamp(32px,5vw,56px)}
.score.is-flashing{animation:goldSweep .22s var(--ease) 1}
@keyframes goldSweep{
  0%{transform:scale(1)}
  55%{transform:scale(1.06);text-shadow:0 0 26px rgba(255,216,115,.65)}
  100%{transform:scale(1)}
}

.exhibit{display:flex;flex-direction:column;gap:10px}
.exhibit__head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap}
.exhibit__index{font-family:var(--font-note);font-size:12px;letter-spacing:.18em;color:var(--gold)}
.exhibit__tag{
  font-family:var(--font-note);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--on-dark-dim);border:1px solid var(--line);border-radius:var(--radius);padding:3px 8px;
}
.exhibit__note{margin:0;font-size:13px;line-height:1.7;color:var(--slate)}
.section--paper .exhibit__tag{border-color:#D8DFEC;color:var(--slate)}

/* ===== 11. 面包屑 ===== */
.breadcrumb{padding:24px 0 0}
.breadcrumb__list{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;
  font-family:var(--font-note);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--slate);
}
.breadcrumb__list li+li::before{content:"/";margin-right:8px;color:var(--line)}
.breadcrumb__link{color:var(--slate)}
.breadcrumb__link:hover{color:var(--gold)}
.breadcrumb__current{color:var(--on-dark)}
.section--paper .breadcrumb__current{color:var(--ink)}

/* ===== 12. 交互组件 ===== */
.chip-group{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  font-family:var(--font-head);font-weight:700;font-size:14px;letter-spacing:.02em;
  padding:8px 14px;background:transparent;border:1px solid var(--line);border-radius:var(--radius);
  color:var(--on-dark-dim);cursor:pointer;
  transition:border-color .16s var(--ease),color .16s var(--ease),background-color .16s var(--ease);
}
.chip:hover{border-color:var(--blue);color:#fff}
.chip[aria-pressed="true"]{background:var(--gold);border-color:var(--gold);color:var(--ink)}
.section--paper .chip{border-color:#D8DFEC;color:var(--slate)}
.section--paper .chip:hover{border-color:var(--navy-700);color:var(--navy-700)}
.section--paper .chip[aria-pressed="true"]{background:var(--gold);border-color:var(--gold);color:var(--ink)}
.is-filtered-out{display:none!important}

.tabstrip{display:flex;flex-wrap:wrap;border-bottom:1px solid var(--line)}
.tabstrip__tab{
  appearance:none;background:transparent;border:0;border-bottom:2px solid transparent;
  padding:14px 18px;cursor:pointer;
  font-family:var(--font-head);font-weight:700;font-size:15px;letter-spacing:.02em;
  color:var(--on-dark-dim);
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.tabstrip__tab:hover{color:#fff}
.tabstrip__tab[aria-selected="true"]{color:var(--gold);border-bottom-color:var(--gold)}
.tabpanel[hidden]{display:none}
.tabpanel{animation:panelIn .18s var(--ease) 1}
@keyframes panelIn{from{opacity:.35}to{opacity:1}}

.details{border-top:1px solid var(--line)}
.details__item{border-bottom:1px solid var(--line)}
.details__summary{
  position:relative;list-style:none;cursor:pointer;
  padding:20px 44px 20px 0;
  font-family:var(--font-head);font-weight:700;font-size:18px;line-height:1.5;color:#fff;
}
.details__summary::-webkit-details-marker{display:none}
.details__summary::after{
  content:"";position:absolute;right:8px;top:50%;width:11px;height:11px;
  border-right:2px solid var(--gold);border-bottom:2px solid var(--gold);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .2s var(--ease);
}
.details__item[open] .details__summary::after{transform:translateY(-30%) rotate(-135deg)}
.details__body{
  padding:0 0 24px;font-size:16px;line-height:1.8;color:var(--on-dark-dim);
  box-shadow:inset 2px 0 0 var(--gold);padding-left:20px;
}
.section--paper .details,.section--paper .details__item{border-color:#DCE3F0}
.section--paper .details__summary{color:var(--ink)}
.section--paper .details__body{color:var(--slate)}

/* ===== 13. 图片容器 ===== */
.media-frame{
  position:relative;display:block;overflow:hidden;
  background:var(--navy-800);border:1px solid var(--line);border-radius:var(--radius);
}
.media-frame>img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.media-frame:hover>img{transform:scale(1.02)}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 16px;
  background:linear-gradient(to top,rgba(6,13,31,.92),rgba(6,13,31,0));
  font-size:12.5px;letter-spacing:.04em;color:var(--on-dark-dim);
}
.media-frame--21x9{aspect-ratio:21/9}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame--slash{clip-path:polygon(0 0,100% 0,100% 88%,0 100%)}
.media-frame--arc{border-radius:0 0 120px 0}
.media-frame--night>img{filter:saturate(.92) contrast(1.06) brightness(.9)}
.media-frame--night::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(150deg,rgba(27,63,160,.36),rgba(6,13,31,.68));
  mix-blend-mode:multiply;
}

/* ===== 14. 显现动效 ===== */
html[data-js] [data-reveal]{
  opacity:0;transform:translateY(12px);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
}
html[data-js] [data-reveal].is-visible{opacity:1;transform:none}

/* ===== 15. 响应式：头部与页脚 ===== */
@media (max-width:1279px){
  .site-footer__grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-col,.footer-contact{border-left:0;padding-left:0}
}
@media (max-width:1079px){
  .site-header__inner{gap:16px}
  .brand__descriptor{display:none}
  .site-header__actions .btn--ghost{display:none}
  .nav-toggle{display:block}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;margin:0;
    display:none;max-height:calc(100vh - var(--header-h-compact));overflow-y:auto;
    background:var(--navy-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    padding:10px var(--gutter) 22px;
  }
  .site-nav[data-open]{display:block}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__link{
    justify-content:flex-start;width:100%;padding:15px 4px;border-radius:0;
    border-bottom:1px solid var(--line);
    font-size:17px;color:var(--on-dark);
  }
  .site-nav__link::after{left:4px;right:auto;width:24px;bottom:9px}
  .site-nav__link:hover{background:transparent}
}
@media (max-width:767px){
  .site-footer__grid{grid-template-columns:1fr;gap:34px}
  .site-footer__inner{padding-top:56px}
  .site-footer__legal{justify-content:flex-start;gap:10px 22px}
}
@media (max-width:560px){
  .site-header__actions .btn--gold{font-size:13px;padding:8px 11px}
  .brand__name{font-size:18px}
  .brand__mark{width:34px;height:34px}
  .footer-brand__title{font-size:24px}
}

/* ===== 16. 减少动效 ===== */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  html[data-js] [data-reveal]{opacity:1;transform:none}
  .site-progress__bar{transition:none}
  .media-frame:hover>img{transform:none}
}