/* ===== 澳门新葡平台中心 · 路书系统共享样式 /assets/site.css ===== */

:root{
  --ink-deep:#062A32;
  --lane:#0E4450;
  --gold:#E7B24A;
  --paper-gold:#F5E4B8;
  --brick:#B7452F;
  --turquoise:#2C9A8C;
  --coral:#F0703F;
  --paper:#F7F2E7;
  --card-paper:#FFFDF7;
  --ink:#141F1E;
  --muted:#5C767C;
  --line:rgba(20,31,30,.16);
  --line-strong:rgba(6,42,50,.24);
  --light-line:rgba(247,242,231,.16);

  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Courier New",monospace;

  --wrap:1200px;
  --pad:clamp(16px,4vw,40px);
  --header-offset:68px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}

img,svg,video{max-width:100%;display:block;height:auto}

a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
hr{border:none;border-top:1px solid var(--line);margin:clamp(24px,4vw,44px) 0}

h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:800;
  line-height:1.16;
  letter-spacing:.01em;
  color:var(--ink);
  margin:0 0 .5em;
}
h1{font-size:clamp(34px,5.2vw,56px)}
h2{font-size:clamp(26px,3.6vw,40px)}
h3{font-size:clamp(20px,2.4vw,28px)}
h4{font-size:22px}

:focus-visible{
  outline:3px solid var(--gold);
  outline-offset:3px;
}

.visually-hidden{
  position:absolute !important;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}

/* ===== 布局容器 ===== */
.wrap{
  width:min(calc(100% - (var(--pad) * 2)),var(--wrap));
  margin-inline:auto;
}

.section{padding-block:clamp(40px,6vw,84px)}
.section--deep{background:var(--ink-deep);color:rgba(247,242,231,.85)}
.section--deep h1,.section--deep h2,.section--deep h3,.section--deep h4{color:var(--paper)}
.section--gold{background:var(--paper-gold)}
.section--lane{background:var(--lane);color:rgba(247,242,231,.86)}
.section--lane h1,.section--lane h2,.section--lane h3{color:var(--paper)}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:900px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:620px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
}

.prose{max-width:72ch}
.flow > * + *{margin-top:1em}

.mono{font-family:var(--mono);font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums}

/* ===== 跳转链接 ===== */
.skip-link{
  position:absolute;
  left:12px;
  top:-70px;
  z-index:200;
  padding:10px 18px;
  background:var(--gold);
  color:var(--ink-deep);
  font-weight:700;
  font-size:14px;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:12px}

/* ===== 头部 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(6,42,50,.66);
  -webkit-backdrop-filter:blur(10px) saturate(140%);
  backdrop-filter:blur(10px) saturate(140%);
  color:var(--paper);
  border-bottom:1px solid rgba(231,178,74,.24);
  transition:background .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.site-header[data-scrolled="true"]{
  background:var(--ink-deep);
  border-bottom-color:var(--gold);
  box-shadow:0 12px 34px rgba(6,42,50,.32);
}

.site-header__inner{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.8vw,26px);
  min-height:68px;
  padding-block:9px;
}

.site-header__progress{
  position:absolute;
  left:0;
  bottom:-1px;
  height:3px;
  width:0;
  background:linear-gradient(90deg,var(--gold),var(--coral));
  transition:width .12s linear;
}

/* 品牌 */
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 1 auto;
  min-width:0;
}
.brand__mark{
  display:grid;
  place-items:center;
  flex:0 0 auto;
  width:44px;
  height:44px;
  font-family:var(--mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--gold);
  border:1px solid var(--gold);
  background:linear-gradient(155deg,rgba(231,178,74,.2),rgba(231,178,74,0) 70%);
}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{
  font-family:var(--serif);
  font-weight:800;
  font-size:19px;
  line-height:1.25;
  color:var(--paper);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.brand__tag{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:rgba(247,242,231,.6);
  white-space:nowrap;
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-left:auto;
  padding:10px 14px;
  border:1px solid var(--gold);
  background:rgba(231,178,74,.1);
  color:var(--gold);
  font-size:13px;
  letter-spacing:.14em;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(231,178,74,.22)}
.nav-toggle__label{line-height:1}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:18px;
  height:2px;
  background:currentColor;
  transition:background .2s var(--ease);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:currentColor;
  transition:transform .2s var(--ease),top .2s 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{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

/* 主导航 */
.site-nav{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,24px);
  margin-left:auto;
}
.site-nav__list{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:clamp(4px,1.1vw,16px);
}
.site-nav__list a{
  position:relative;
  display:inline-block;
  padding:9px 2px;
  font-size:15px;
  color:rgba(247,242,231,.86);
  transition:color .2s var(--ease);
}
.site-nav__list a::before{
  content:"";
  position:absolute;
  left:0;right:0;bottom:3px;
  height:2px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.site-nav__list a:hover{color:var(--paper)}
.site-nav__list a:hover::before{transform:scaleX(1)}
.site-nav__list a[aria-current="page"]{
  color:var(--gold);
  font-weight:700;
}
.site-nav__list a[aria-current="page"]::before{transform:scaleX(1)}

.site-nav__lanes{
  display:flex;
  align-items:center;
  gap:8px;
}
.site-nav__lanes-title{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.2em;
  color:rgba(247,242,231,.48);
}
.lane-chip{
  font-size:12.5px;
  line-height:1;
  padding:7px 10px;
  border:1px dashed rgba(231,178,74,.5);
  color:var(--paper-gold);
  white-space:nowrap;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.lane-chip:hover{
  border-style:solid;
  border-color:var(--gold);
  background:rgba(231,178,74,.16);
  color:var(--paper);
}
.site-nav__cta{margin-left:4px}

.site-header[data-scrolled="true"] .brand__tag,
.site-header[data-scrolled="true"] .site-nav__lanes{display:none}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border:1px solid var(--line-strong);
  background:transparent;
  color:var(--ink);
  font-family:var(--sans);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  letter-spacing:.02em;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn--gold{
  background:var(--ink-deep);
  color:var(--paper-gold);
  border-color:var(--gold);
  box-shadow:inset 0 0 0 1px rgba(245,228,184,.18);
}
.btn--gold:hover{background:var(--gold);color:var(--ink-deep)}
.btn--ghost{
  border-color:rgba(231,178,74,.65);
  color:var(--ink-deep);
  background:rgba(255,253,247,.6);
}
.btn--ghost:hover{background:var(--paper-gold)}
.btn--coral{
  background:var(--coral);
  border-color:var(--coral);
  color:#fff;
}
.btn--coral:hover{background:#d95a2c;border-color:#d95a2c;color:#fff}
.btn--sm{padding:8px 14px;font-size:13.5px}

/* ===== 标签 / 注释 / 印章 ===== */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.08em;
  line-height:1.4;
  border:1px solid rgba(6,42,50,.22);
  background:var(--paper-gold);
  color:var(--ink-deep);
}
.tag--brick{background:rgba(183,69,47,.12);border-color:rgba(183,69,47,.55);color:var(--brick)}
.tag--turquoise{background:rgba(44,154,140,.14);border-color:rgba(44,154,140,.55);color:#1d6f65}
.tag--coral{background:rgba(240,112,63,.16);border-color:rgba(240,112,63,.6);color:#b8451c}

.note-vertical{
  writing-mode:vertical-rl;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--muted);
  line-height:1;
}

.stamp{
  display:inline-grid;
  place-items:center;
  width:78px;
  height:78px;
  border:2px solid var(--coral);
  border-radius:50%;
  color:var(--coral);
  font-family:var(--serif);
  font-weight:800;
  font-size:19px;
  line-height:1.15;
  letter-spacing:.06em;
  text-align:center;
  transform:rotate(-9deg);
  opacity:.92;
}

/* ===== 面包屑 ===== */
.crumbs{
  font-size:12.5px;
  color:var(--muted);
  margin-bottom:20px;
}
.crumbs ul{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li + li::before{content:"/";color:rgba(92,118,124,.55);font-family:var(--mono)}
.crumbs a{color:var(--muted);border-bottom:1px dotted rgba(92,118,124,.55)}
.crumbs a:hover{color:var(--brick);border-bottom-color:var(--brick)}
.crumbs [aria-current="page"]{color:var(--ink);font-weight:600}

/* ===== 编号章节 / 路标线 ===== */
.rail{position:relative}
.rail::before{
  content:"";
  position:absolute;
  left:0;
  top:4px;
  bottom:4px;
  width:2px;
  background:repeating-linear-gradient(180deg,var(--gold) 0 10px,rgba(231,178,74,.2) 10px 20px);
}

.chapter{position:relative}
.chapter__num{
  display:block;
  font-family:var(--mono);
  font-weight:600;
  font-size:clamp(26px,4vw,44px);
  line-height:1;
  color:var(--gold);
  margin-bottom:8px;
  letter-spacing:.02em;
}
.chapter__title{
  font-family:var(--serif);
  font-weight:800;
  font-size:clamp(24px,3.2vw,38px);
  line-height:1.2;
  margin:0 0 12px;
}
.chapter__lead{
  color:var(--muted);
  max-width:62ch;
  margin:0 0 22px;
}
.section--deep .chapter__lead,
.section--lane .chapter__lead{color:rgba(247,242,231,.72)}

/* ===== 卡片（纸张叠层） ===== */
.card{
  position:relative;
  background:var(--card-paper);
  border:1px solid var(--line-strong);
  padding:clamp(18px,2.4vw,26px);
  box-shadow:8px 8px 0 -1px var(--paper-gold),8px 8px 0 0 rgba(6,42,50,.16);
}
.card > :last-child{margin-bottom:0}
.card__title{
  font-family:var(--serif);
  font-weight:800;
  font-size:20px;
  margin:0 0 8px;
}
.card__meta{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--muted);
  margin:0 0 10px;
}
.card--deep{
  background:var(--lane);
  color:rgba(247,242,231,.86);
  border-color:rgba(231,178,74,.4);
  box-shadow:8px 8px 0 -1px rgba(6,42,50,.5),8px 8px 0 0 rgba(231,178,74,.35);
}
.card--deep .card__title{color:var(--paper)}
.card--deep .card__meta{color:rgba(247,242,231,.6)}
.card--brick{background:var(--brick);color:#fff;border-color:rgba(255,255,255,.28);box-shadow:8px 8px 0 -1px rgba(183,69,47,.35),8px 8px 0 0 rgba(6,42,50,.18)}
.card--brick .card__title,.card--brick .card__meta{color:#fff}
.card--turquoise{background:var(--turquoise);color:#fff;border-color:rgba(255,255,255,.3);box-shadow:8px 8px 0 -1px rgba(44,154,140,.35),8px 8px 0 0 rgba(6,42,50,.18)}
.card--turquoise .card__title,.card--turquoise .card__meta{color:#fff}

/* ===== 图片占位容器 ===== */
.frame{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid var(--line-strong);
  background:linear-gradient(140deg,var(--lane),var(--ink-deep));
}
.frame--wide{aspect-ratio:16 / 9}
.frame--strip{aspect-ratio:3 / 1}
.frame--tall{aspect-ratio:3 / 4}
.frame--square{aspect-ratio:1 / 1}
.frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.frame__ph{
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  padding:16px;
  text-align:center;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.18em;
  color:rgba(247,242,231,.5);
}
.frame__label{
  position:absolute;
  left:0;
  bottom:0;
  padding:6px 12px;
  background:rgba(6,42,50,.84);
  color:var(--paper-gold);
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.14em;
}

/* ===== 折叠面板 ===== */
.fold{
  background:var(--card-paper);
  border:1px solid var(--line-strong);
  margin:0 0 12px;
}
.fold summary{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 18px;
  cursor:pointer;
  font-weight:600;
  list-style:none;
  background:rgba(14,68,80,.05);
  transition:background .2s var(--ease);
}
.fold summary::-webkit-details-marker{display:none}
.fold summary::before{
  content:"";
  flex:0 0 auto;
  width:9px;
  height:9px;
  border-right:2px solid var(--gold);
  border-bottom:2px solid var(--gold);
  transform:rotate(-45deg) translate(-1px,-1px);
  transition:transform .2s var(--ease);
}
.fold[open] summary{background:rgba(231,178,74,.18)}
.fold[open] summary::before{transform:rotate(45deg) translate(-2px,-2px)}
.fold__body{
  padding:16px 18px 20px;
  border-top:1px dashed rgba(6,42,50,.2);
  color:var(--muted);
}
.fold__body > :last-child{margin-bottom:0}

/* ===== 双版本标签页 ===== */
.tabs{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  border-bottom:1px solid var(--line-strong);
  margin-bottom:22px;
}
.tab{
  padding:10px 18px;
  background:transparent;
  border:1px solid transparent;
  border-bottom:none;
  color:var(--muted);
  font-weight:600;
  font-size:14.5px;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.tab:hover{color:var(--ink)}
.tab[aria-selected="true"]{
  background:var(--card-paper);
  border-color:var(--line-strong);
  color:var(--ink-deep);
  box-shadow:inset 0 3px 0 var(--gold);
}
.tab-panel[hidden]{display:none}

/* ===== 段落索引 ===== */
.toc{position:sticky;top:calc(var(--header-offset) + 18px)}
.toc__title{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.2em;
  color:var(--muted);
  margin:0 0 10px;
}
.toc a{
  display:block;
  padding:7px 10px 7px 14px;
  font-size:14px;
  color:var(--muted);
  border-left:2px solid rgba(6,42,50,.14);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.toc a:hover{color:var(--ink)}
.toc a[aria-current="true"]{
  color:var(--ink-deep);
  font-weight:600;
  border-left-color:var(--gold);
  background:linear-gradient(90deg,rgba(231,178,74,.2),transparent);
}

/* ===== 滚动显现 ===== */
.js [data-reveal]{
  opacity:0;
  transform:translateY(8px);
  transition:opacity .4s var(--ease),transform .4s var(--ease);
}
.js [data-reveal].is-in{opacity:1;transform:none}

/* ===== 返回顶部 ===== */
.to-top{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:70;
  display:grid;
  place-items:center;
  width:48px;
  height:48px;
  background:var(--ink-deep);
  color:var(--gold);
  border:1px solid var(--gold);
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(6px);
  transition:opacity .22s var(--ease),visibility .22s var(--ease),transform .22s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.to-top.is-on{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--gold);color:var(--ink-deep)}
.to-top__arrow{font-family:var(--mono);font-size:18px;line-height:1}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  background:var(--ink-deep);
  color:rgba(247,242,231,.78);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:6px;
  background:repeating-linear-gradient(90deg,var(--gold) 0 20px,transparent 20px 40px);
  opacity:.75;
}
.site-footer__inner{
  display:grid;
  grid-template-columns:minmax(170px,1fr) minmax(0,1.9fr) minmax(200px,1.1fr);
  gap:clamp(24px,4vw,56px);
  padding-block:clamp(44px,6vw,76px);
}
.site-footer__brand{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:12px;
}
.brand__mark--footer{
  border-color:var(--gold);
  color:var(--gold);
}
.site-footer__brand-name{
  font-family:var(--serif);
  font-weight:800;
  font-size:20px;
  line-height:1.3;
  color:var(--paper);
  margin:0;
}
.site-footer__tag{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  color:rgba(247,242,231,.56);
  margin:0;
}
.site-footer__cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,2.4vw,28px);
}
.site-footer__title{
  font-family:var(--mono);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.2em;
  color:var(--gold);
  margin:0 0 14px;
}
.site-footer__list li{margin-bottom:9px}
.site-footer__list a{
  font-size:14.5px;
  color:rgba(247,242,231,.8);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.site-footer__list a:hover{color:var(--gold);border-bottom-color:var(--gold)}
.site-footer__contact-list li{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  margin-bottom:9px;
  line-height:1.6;
}
.site-footer__label{
  flex:0 0 auto;
  min-width:64px;
  color:rgba(247,242,231,.5);
  font-size:13px;
}
.site-footer__contact-list .mono{
  color:var(--paper-gold);
  font-size:13.5px;
  word-break:break-all;
}
.site-footer__note{
  margin:14px 0 0;
  padding-left:11px;
  border-left:2px solid var(--turquoise);
  font-size:12.5px;
  line-height:1.75;
  color:rgba(247,242,231,.6);
}
.site-footer__legal{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:8px 24px;
  padding-block:18px 28px;
  border-top:1px solid var(--light-line);
  font-size:12.5px;
  color:rgba(247,242,231,.58);
}
.site-footer__legal p{margin:0}
.site-footer__legal-line{font-family:var(--mono);letter-spacing:.04em}

/* ===== 头部响应式 ===== */
@media (max-width:1180px){
  .site-nav__lanes{display:none}
}
@media (max-width:1080px){
  .brand__tag{display:none}
  .site-nav__list a{font-size:14px}
}
@media (max-width:940px){
  .nav-toggle{display:inline-flex}
  .brand{flex:1 1 auto}

  .site-nav{
    position:fixed;
    left:0;
    right:0;
    top:var(--header-offset);
    bottom:0;
    z-index:75;
    display:block;
    margin:0;
    padding:22px var(--pad) 64px;
    background:var(--ink-deep);
    border-top:1px solid rgba(231,178,74,.28);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);
  }
  .site-nav[data-open="true"]{
    opacity:1;
    visibility:visible;
    transform:none;
  }
  .site-nav__list{display:block}
  .site-nav__list li{border-bottom:1px solid var(--light-line)}
  .site-nav__list a{
    display:block;
    padding:15px 0;
    font-family:var(--serif);
    font-size:17px;
    font-weight:700;
  }
  .site-nav__list a::before{display:none}
  .site-nav__list a[aria-current="page"]{padding-left:14px;box-shadow:inset 3px 0 0 var(--gold)}
  .site-nav__lanes{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:22px;
  }
  .site-nav__lanes-title{width:100%}
  .site-nav__cta{
    display:flex;
    width:100%;
    margin:26px 0 0;
  }
}

@media (max-width:640px){
  .brand__mark{width:40px;height:40px;font-size:11px}
  .brand__name{font-size:17px}
  .to-top{right:12px;bottom:12px}
}

/* ===== 页脚响应式 ===== */
@media (max-width:960px){
  .site-footer__inner{
    grid-template-columns:1fr 1fr;
  }
  .site-footer__brand{grid-column:1 / -1}
  .site-footer__contact{grid-column:1 / -1}
}
@media (max-width:620px){
  .site-footer__inner{grid-template-columns:1fr}
  .site-footer__cols{grid-template-columns:1fr 1fr}
  .stamp{display:none}
}

/* ===== 动效降级 ===== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .btn:hover,.to-top{transform:none}
}