/* ============================================================
   闲逸麻将 · 全站共享样式 /assets/site.css
   顺序：令牌 → 重置 → 中文排版 → 布局 → 通用组件 → 页头 → 页脚 → 响应式 → 无障碍
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --xm-bamboo-900:#16302A;
  --xm-bamboo-700:#2E5A4E;
  --xm-felt:#223531;
  --xm-tile:#F5F2E9;
  --xm-paper:#FBFAF4;
  --xm-red:#C43D2E;
  --xm-red-dark:#A8321F;
  --xm-gold:#C9A227;
  --xm-line:#CFD8D2;
  --xm-ink:#1B2B27;
  --xm-grey:#55635D;
  --xm-teal:#7FBFA8;

  --xm-font-display:'Noto Sans SC','Source Han Sans SC','PingFang SC',sans-serif;
  --xm-font-body:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --xm-font-num:'JetBrains Mono','Roboto Mono',ui-monospace,SFMono-Regular,Menlo,monospace;

  --xm-cut:10px;
  --xm-cut-sm:6px;
  --xm-maxw:1200px;
  --xm-textw:76ch;
  --xm-gutter:20px;
  --xm-shadow:0 20px 44px -30px rgba(22,48,42,.6);
  --xm-hair:rgba(207,216,210,.18);
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--xm-tile);
  color:var(--xm-ink);
  font-family:var(--xm-font-body);
  font-size:1rem;
  line-height:1.75;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
hr{border:0;border-top:1px solid var(--xm-line);margin:0}

/* ---------- 3. 中文排版 ---------- */
h1,h2,h3,h4{
  font-family:var(--xm-font-display);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.2;
  color:var(--xm-bamboo-900);
}
h1{font-size:clamp(1.9rem,3.6vw,2.7rem)}
h2{font-size:clamp(1.4rem,2.4vw,1.9rem)}
h3{font-size:clamp(1.12rem,1.6vw,1.35rem);font-weight:700}
h4{font-size:1rem;font-weight:700;letter-spacing:0}
p{max-width:var(--xm-textw)}
strong{font-weight:700}
::selection{background:var(--xm-red);color:#fff}

.xm-display{
  font-family:var(--xm-font-display);
  font-weight:900;
  font-size:clamp(2.1rem,4.8vw,4rem);
  letter-spacing:-.02em;
  line-height:1.08;
  color:var(--xm-bamboo-900);
}
.xm-h2{
  font-family:var(--xm-font-display);
  font-weight:700;
  font-size:clamp(1.4rem,2.4vw,1.9rem);
  letter-spacing:-.015em;
  line-height:1.24;
}
.xm-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.55em;
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--xm-bamboo-700);
}
.xm-eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  background:var(--xm-red);
  flex:none;
}
.xm-lede{
  font-size:clamp(1rem,1.3vw,1.1rem);
  color:var(--xm-grey);
  max-width:var(--xm-textw);
}
.xm-num,.xm-stat__value,.xm-footer__meta,.xm-breadcrumb{
  font-family:var(--xm-font-num);
  font-weight:600;
  font-variant-numeric:tabular-nums;
}
.xm-num{font-size:1.1em;color:var(--xm-bamboo-900)}
.xm-stat{display:block;padding:2px 0}
.xm-stat__value{
  display:block;
  font-size:clamp(1.8rem,3.4vw,2.6rem);
  line-height:1.05;
  color:var(--xm-red);
  letter-spacing:-.02em;
}
.xm-stat__unit{font-size:.85rem;color:var(--xm-grey);margin-left:.35em}
.xm-stat__label{
  display:block;
  margin-top:.35rem;
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--xm-grey);
}

/* ---------- 4. 布局 ---------- */
.xm-container{
  width:100%;
  max-width:var(--xm-maxw);
  margin-inline:auto;
  padding-inline:var(--xm-gutter);
}
.xm-container--text{max-width:calc(var(--xm-textw) + var(--xm-gutter) * 2)}
.xm-section{padding-block:clamp(40px,6vw,80px)}
.xm-section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:12px 24px;
  margin-bottom:clamp(20px,3vw,36px);
}
.xm-grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:24px;
}
.xm-col-main{grid-column:span 8}
.xm-col-side{grid-column:span 4}

/* ---------- 5. 通用组件 ---------- */
.xm-panel,
.xm-card{
  position:relative;
  background:var(--xm-bamboo-700);
  clip-path:polygon(var(--xm-cut) 0,100% 0,100% calc(100% - var(--xm-cut)),calc(100% - var(--xm-cut)) 100%,0 100%,0 var(--xm-cut));
  padding:1px;
}
.xm-panel::before,
.xm-card::before{
  content:"";
  position:absolute;
  inset:1px;
  background:var(--xm-paper);
  clip-path:polygon(var(--xm-cut) 0,100% 0,100% calc(100% - var(--xm-cut)),calc(100% - var(--xm-cut)) 100%,0 100%,0 var(--xm-cut));
  z-index:0;
}
.xm-panel>*,
.xm-card>*{position:relative;z-index:1}
.xm-card{padding:0}
.xm-panel--dark{background:var(--xm-bamboo-700)}
.xm-panel--dark::before{background:var(--xm-felt)}
.xm-panel--dark,
.xm-panel--dark h2,
.xm-panel--dark h3{color:var(--xm-tile)}

.xm-tag{
  display:inline-flex;
  align-items:center;
  gap:.4em;
  padding:.18rem .55rem;
  border:1px solid var(--xm-gold);
  color:#7a6114;
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.12em;
  line-height:1.6;
  white-space:nowrap;
}
.xm-tag--red{border-color:var(--xm-red);color:var(--xm-red-dark)}
.xm-tag--dark{border-color:rgba(201,162,39,.6);color:var(--xm-gold)}

.xm-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding:.75rem 1.25rem;
  background:var(--xm-red);
  color:#fff;
  font-weight:700;
  font-size:.9rem;
  letter-spacing:.04em;
  line-height:1.2;
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transition:background .16s ease,transform .16s ease;
}
.xm-btn:hover{background:var(--xm-red-dark);transform:translateY(-1px)}
.xm-btn--ghost{
  background:transparent;
  color:var(--xm-bamboo-900);
  box-shadow:inset 0 0 0 1px var(--xm-bamboo-700);
}
.xm-btn--ghost:hover{background:rgba(46,90,78,.08);color:var(--xm-bamboo-900)}
.xm-btn--sm{padding:.5rem .85rem;font-size:.8rem;letter-spacing:.08em}

.xm-breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5em;
  font-size:.76rem;
  letter-spacing:.06em;
  color:var(--xm-grey);
}
.xm-breadcrumb li{display:inline-flex;align-items:center;gap:.5em}
.xm-breadcrumb li+li::before{content:"/";color:var(--xm-line)}
.xm-breadcrumb a{color:var(--xm-bamboo-700)}
.xm-breadcrumb a:hover{color:var(--xm-red)}
.xm-breadcrumb [aria-current="page"]{color:var(--xm-ink)}

.xm-media{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  background:var(--xm-felt);
  border:1px solid var(--xm-line);
  clip-path:polygon(var(--xm-cut) 0,100% 0,100% calc(100% - var(--xm-cut)),calc(100% - var(--xm-cut)) 100%,0 100%,0 var(--xm-cut));
}
.xm-media>img,
.xm-media>svg,
.xm-media>picture>img{width:100%;height:100%;object-fit:cover}
.xm-media--wide{aspect-ratio:16/9}
.xm-media--square{aspect-ratio:1/1}
.xm-media--tall{aspect-ratio:3/4}
.xm-media--panel{aspect-ratio:4/3}
.xm-media__caption{
  display:block;
  margin-top:.55rem;
  font-size:.76rem;
  letter-spacing:.04em;
  color:var(--xm-grey);
}

.xm-segment{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  padding:6px;
  background:var(--xm-felt);
  border:1px solid var(--xm-bamboo-700);
}
.xm-segment [role="tab"]{
  flex:1 1 auto;
  min-width:0;
  padding:.55rem .8rem;
  border-bottom:2px solid transparent;
  color:rgba(245,242,233,.7);
  font-size:.82rem;
  font-weight:600;
  letter-spacing:.06em;
  transition:color .16s ease,background .16s ease,border-color .16s ease;
}
.xm-segment [role="tab"]:hover{color:var(--xm-tile);background:rgba(127,191,168,.12)}
.xm-segment [role="tab"][aria-selected="true"]{
  color:#fff;
  background:var(--xm-bamboo-700);
  border-bottom-color:var(--xm-red);
}
.xm-tabpanel{padding-top:22px}
.xm-tabpanel[hidden]{display:none}

.xm-timeline{
  position:relative;
  padding-left:32px;
  border-left:2px solid var(--xm-bamboo-700);
}
.xm-timeline__item{position:relative;padding-bottom:26px}
.xm-timeline__item::before{
  content:"";
  position:absolute;
  left:-39px;
  top:.5em;
  width:12px;
  height:12px;
  background:var(--xm-paper);
  border:2px solid var(--xm-bamboo-700);
  transform:rotate(45deg);
  transition:background .2s ease,border-color .2s ease;
}
.xm-timeline__item[aria-current="true"]::before,
.xm-timeline__item.is-active::before{background:var(--xm-red);border-color:var(--xm-red)}
.xm-timeline--x{
  display:flex;
  gap:20px;
  padding:0 0 18px;
  padding-left:0;
  border-left:0;
  overflow-x:auto;
  scrollbar-width:thin;
}
.xm-timeline--x .xm-timeline__item{
  flex:0 0 min(260px,74vw);
  padding:24px 0 0;
  border-top:2px solid var(--xm-bamboo-700);
}
.xm-timeline--x .xm-timeline__item::before{left:0;top:-7px}

/* 显现协议 */
.xm-js [data-reveal]{opacity:0;transform:translateY(16px)}
[data-reveal]{transition:opacity .55s ease,transform .55s ease}
[data-reveal].is-visible{opacity:1;transform:none}

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

/* ---------- 6. 页头 ---------- */
.xm-skip{
  position:fixed;
  top:12px;
  left:12px;
  z-index:200;
  padding:.6rem 1rem;
  background:var(--xm-red);
  color:#fff;
  font-weight:700;
  font-size:.85rem;
  letter-spacing:.06em;
  transform:translateY(-180%);
  transition:transform .18s ease;
}
.xm-skip:focus{transform:none}

.xm-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--xm-bamboo-900);
  color:var(--xm-tile);
  border-bottom:1px solid var(--xm-bamboo-700);
}
.xm-header__inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  max-width:var(--xm-maxw);
  min-height:64px;
  margin-inline:auto;
  padding-inline:var(--xm-gutter);
}
.xm-brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
  padding-block:10px;
}
.xm-brand__mark{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:4px;
  width:36px;
  height:36px;
  flex:none;
  padding:6px;
  background:var(--xm-tile);
  clip-path:polygon(var(--xm-cut-sm) 0,100% 0,100% calc(100% - var(--xm-cut-sm)),calc(100% - var(--xm-cut-sm)) 100%,0 100%,0 var(--xm-cut-sm));
}
.xm-brand__mark i{
  display:block;
  width:100%;
  aspect-ratio:1/1;
  background:var(--xm-bamboo-900);
  border-radius:50%;
}
.xm-brand__mark i:nth-child(4){background:var(--xm-red)}
.xm-brand__text{display:block;min-width:0}
.xm-brand__name{
  display:block;
  font-family:var(--xm-font-display);
  font-weight:900;
  font-size:1.06rem;
  letter-spacing:.02em;
  line-height:1.25;
  color:var(--xm-tile);
}
.xm-brand__sub{
  display:block;
  font-size:.7rem;
  font-weight:600;
  letter-spacing:.14em;
  line-height:1.5;
  color:var(--xm-teal);
}
.xm-nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:.5rem .7rem;
  border:1px solid var(--xm-bamboo-700);
  color:var(--xm-tile);
  font-size:.76rem;
  font-weight:600;
  letter-spacing:.14em;
}
.xm-nav-toggle__bars{
  position:relative;
  display:block;
  width:16px;
  height:2px;
  background:currentColor;
}
.xm-nav-toggle__bars::before,
.xm-nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  background:currentColor;
  transition:transform .2s ease,top .2s ease;
}
.xm-nav-toggle__bars::before{top:-5px}
.xm-nav-toggle__bars::after{top:5px}
.xm-header[data-open] .xm-nav-toggle__bars{background:transparent}
.xm-header[data-open] .xm-nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.xm-header[data-open] .xm-nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

.xm-nav{
  position:absolute;
  top:100%;
  left:0;
  right:0;
  display:none;
  flex-direction:column;
  gap:2px;
  max-height:calc(100vh - 64px);
  overflow-y:auto;
  padding:10px var(--xm-gutter) 22px;
  background:var(--xm-bamboo-900);
  border-bottom:1px solid var(--xm-bamboo-700);
  box-shadow:var(--xm-shadow);
}
.xm-header[data-open] .xm-nav{display:flex}
.xm-nav__list{display:flex;flex-direction:column;gap:2px}
.xm-nav__item{border-bottom:1px solid rgba(207,216,210,.12)}
.xm-nav__link{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:.72rem .2rem;
  border-bottom:2px solid transparent;
  color:rgba(245,242,233,.82);
  font-size:.94rem;
  font-weight:600;
  letter-spacing:.02em;
  transition:color .16s ease,border-color .16s ease,background .16s ease;
}
.xm-nav__link:hover{color:var(--xm-tile);border-bottom-color:var(--xm-teal)}
.xm-nav__link[aria-current="page"]{
  color:#fff;
  border-bottom-color:var(--xm-red);
}
.xm-nav__index{
  font-family:var(--xm-font-num);
  font-weight:600;
  font-size:.68rem;
  letter-spacing:.06em;
  color:var(--xm-gold);
}
.xm-nav__cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-top:14px;
  padding:.7rem 1.1rem;
  background:var(--xm-red);
  color:#fff;
  font-size:.86rem;
  font-weight:700;
  letter-spacing:.05em;
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transition:background .16s ease;
}
.xm-nav__cta:hover{background:var(--xm-red-dark)}

.xm-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:rgba(127,191,168,.12);
}
.xm-progress__bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--xm-teal) 0%,var(--xm-gold) 55%,var(--xm-red) 100%);
}

/* ---------- 7. 页脚 ---------- */
.xm-footer{
  position:relative;
  overflow:hidden;
  background:var(--xm-bamboo-900);
  color:var(--xm-tile);
  border-top:1px solid var(--xm-bamboo-700);
}
.xm-footer::before{
  content:"";
  position:absolute;
  inset:0;
  background:repeating-linear-gradient(135deg,rgba(245,242,233,.035) 0 2px,transparent 2px 14px);
  pointer-events:none;
}
.xm-footer__inner{
  position:relative;
  z-index:1;
  width:100%;
  max-width:var(--xm-maxw);
  margin-inline:auto;
  padding:48px var(--xm-gutter) 26px;
}
.xm-footer__top{
  display:grid;
  grid-template-columns:1fr;
  gap:34px;
}
.xm-footer__mark{
  display:block;
  width:30px;
  height:30px;
  margin-bottom:14px;
  background:var(--xm-gold);
  clip-path:polygon(var(--xm-cut-sm) 0,100% 0,100% calc(100% - var(--xm-cut-sm)),calc(100% - var(--xm-cut-sm)) 100%,0 100%,0 var(--xm-cut-sm));
}
.xm-footer__mark::after{
  content:"";
  position:absolute;
  inset:6px;
  background:var(--xm-bamboo-900);
}
.xm-footer__mark{position:relative}
.xm-footer__name{
  font-family:var(--xm-font-display);
  font-weight:900;
  font-size:1.2rem;
  letter-spacing:.02em;
  color:var(--xm-tile);
}
.xm-footer__tagline{
  margin-top:6px;
  font-size:.88rem;
  line-height:1.8;
  color:rgba(245,242,233,.7);
  max-width:34ch;
}
.xm-footer__tiles{
  display:flex;
  gap:6px;
  margin-top:22px;
}
.xm-footer__tiles span{
  width:14px;
  height:20px;
  background:rgba(245,242,233,.06);
  border:1px solid var(--xm-hair);
}
.xm-footer__tiles span:nth-child(3),
.xm-footer__tiles span:nth-child(6){background:rgba(201,162,39,.5);border-color:transparent}
.xm-footer__tiles span:nth-child(8){background:rgba(196,61,46,.6);border-color:transparent}

.xm-footer__nav{
  display:grid;
  grid-template-columns:1fr;
  gap:26px;
}
.xm-footer__title{
  padding-bottom:8px;
  margin-bottom:12px;
  border-bottom:1px solid var(--xm-hair);
  font-size:.74rem;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--xm-gold);
  max-width:none;
}
.xm-footer__list{display:flex;flex-direction:column;gap:2px}
.xm-footer__link{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:.3rem 0;
  font-size:.92rem;
  color:rgba(245,242,233,.8);
  transition:color .16s ease;
}
.xm-footer__link::before{
  content:"";
  width:7px;
  height:7px;
  flex:none;
  background:var(--xm-bamboo-700);
  transform:rotate(45deg);
  transition:background .16s ease;
}
.xm-footer__link:hover{color:#fff}
.xm-footer__link:hover::before{background:var(--xm-red)}

.xm-footer__meta{
  display:grid;
  gap:8px;
  margin-top:34px;
  padding-top:20px;
  border-top:1px solid var(--xm-hair);
  font-size:.76rem;
  line-height:1.75;
  letter-spacing:.03em;
  color:rgba(245,242,233,.62);
}
.xm-footer__meta p{max-width:none}
.xm-footer__copy{color:rgba(245,242,233,.5)}

/* ---------- 8. 响应式 ---------- */
@media (max-width:1023px){
  .xm-grid{grid-template-columns:1fr;gap:18px}
  .xm-col-main,.xm-col-side{grid-column:1/-1}
}
@media (max-width:719px){
  :root{--xm-gutter:16px}
  .xm-brand__sub{display:none}
  .xm-brand__mark{width:32px;height:32px;padding:5px}
  .xm-brand__name{font-size:1rem}
  .xm-section{padding-block:38px}
}
@media (min-width:640px){
  .xm-footer__nav{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (min-width:720px){
  :root{--xm-gutter:24px}
  .xm-timeline{padding-left:36px}
  .xm-timeline__item::before{left:-43px}
}
@media (min-width:900px){
  .xm-header__inner{min-height:68px}
  .xm-nav-toggle{display:none}
  .xm-nav{
    position:static;
    display:flex;
    flex-direction:row;
    align-items:center;
    gap:4px;
    max-height:none;
    overflow:visible;
    padding:0;
    background:transparent;
    border:0;
    box-shadow:none;
  }
  .xm-nav__list{flex-direction:row;align-items:center;gap:2px}
  .xm-nav__item{border-bottom:0}
  .xm-nav__link{padding:.9rem .55rem;font-size:.88rem}
  .xm-nav__cta{margin-top:0;margin-left:10px;padding:.58rem .95rem;font-size:.82rem}
  .xm-footer__top{grid-template-columns:minmax(240px,1fr) minmax(0,2fr);gap:40px}
  .xm-footer__meta{grid-template-columns:1fr auto;align-items:end;gap:6px 24px}
  .xm-footer__contact,.xm-footer__addr,.xm-footer__copy{text-align:right}
}
@media (min-width:1200px){
  .xm-nav__link{padding-inline:.7rem}
}

/* ---------- 9. 无障碍与焦点 ---------- */
:focus-visible{
  outline:2px solid var(--xm-teal);
  outline-offset:3px;
}
.xm-header :focus-visible{outline-color:var(--xm-gold)}
.xm-skip:focus-visible{outline-color:var(--xm-tile)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
  .xm-js [data-reveal]{opacity:1;transform:none}
  .xm-btn:hover{transform:none}
}