/* ============================================================
   MANBETX主站 · /assets/site.css
   共享外壳：变量 / reset / 头部 / 页脚 / 通用组件
   ============================================================ */

:root{
  --mbx-ink-950:#041A14;
  --mbx-ink-800:#0A2F25;
  --mbx-ink-600:#13543F;
  --mbx-orange-500:#FF6A1A;
  --mbx-orange-300:#FFAE72;
  --mbx-blue-500:#29C7F5;
  --mbx-blue-800:#0B3B5C;
  --mbx-paper:#F7F2E8;
  --mbx-paper-70:#C9BFAD;
  --mbx-green-400:#4FD69C;
  --mbx-alert:#E0503A;

  --mbx-display:"Barlow Condensed","Oswald","PingFang SC","Microsoft YaHei",sans-serif;
  --mbx-body:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mbx-mono:"IBM Plex Mono","Sarasa Mono SC",ui-monospace,Menlo,Consolas,monospace;

  --mbx-max:1320px;
  --mbx-gutter:24px;
  --mbx-header-h:76px;
  --mbx-r-lg:28px;
  --mbx-r-md:18px;
  --mbx-r-pill:999px;
  --mbx-ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--mbx-header-h) + 20px);
}
body{
  margin:0;
  background-color:var(--mbx-ink-950);
  background-image:radial-gradient(rgba(247,242,232,.045) 1px,transparent 1.2px);
  background-size:4px 4px;
  color:var(--mbx-paper);
  font-family:var(--mbx-body);
  font-size:17px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
:focus-visible{outline:2px solid var(--mbx-blue-500);outline-offset:2px;border-radius:6px}
::selection{background:var(--mbx-orange-500);color:var(--mbx-ink-950)}

/* ---------- 通用工具 ---------- */
.mbx-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;
}
.mbx-mono{
  font-family:var(--mbx-mono);
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}

/* ---------- 跳过链接 ---------- */
.mbx-skip{
  position:fixed;left:16px;top:-72px;z-index:140;
  padding:12px 20px;border-radius:0 0 16px 16px;
  background:var(--mbx-orange-500);color:var(--mbx-ink-950);
  font:700 14px/1 var(--mbx-body);
  transition:top .22s var(--mbx-ease);
}
.mbx-skip:focus{top:0}

/* ============================================================
   头部
   ============================================================ */
.mbx-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  color:var(--mbx-paper);
  background:transparent;
  transition:background-color .3s var(--mbx-ease),box-shadow .3s var(--mbx-ease);
}
.mbx-header.is-solid{
  background:var(--mbx-ink-950);
  box-shadow:0 1px 0 0 var(--mbx-ink-600),0 22px 48px -34px rgba(0,0,0,.95);
}
.mbx-header__bar{
  max-width:var(--mbx-max);
  margin:0 auto;
  padding:16px var(--mbx-gutter);
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;
  gap:20px;
}

/* 品牌 */
.mbx-brand{
  grid-column:1;
  display:inline-flex;
  align-items:center;
  gap:12px;
  justify-self:start;
}
.mbx-brand--stack{
  grid-column:auto;
  align-items:flex-start;
}
.mbx-brand__mark{
  position:relative;
  flex:0 0 auto;
  width:30px;height:30px;
  border-radius:10px;
  background:var(--mbx-orange-500);
  box-shadow:inset 0 0 0 1px rgba(4,26,20,.35);
  transition:transform .25s var(--mbx-ease);
}
.mbx-brand__mark::after{
  content:"";
  position:absolute;left:7px;right:7px;top:9px;height:2px;
  border-radius:2px;
  background:var(--mbx-ink-950);
  box-shadow:0 5px 0 var(--mbx-ink-950),0 10px 0 var(--mbx-ink-950);
}
.mbx-brand:hover .mbx-brand__mark{transform:rotate(-6deg)}
.mbx-brand__text{display:flex;flex-direction:column;gap:4px;min-width:0}
.mbx-brand__name{
  font-family:var(--mbx-display);
  font-size:20px;font-weight:700;line-height:1;
  letter-spacing:.01em;
  white-space:nowrap;
}
.mbx-brand__sub{
  font-family:var(--mbx-mono);
  font-size:11px;line-height:1;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mbx-paper-70);
  white-space:nowrap;
}
.mbx-brand:hover .mbx-brand__name{color:var(--mbx-orange-300)}

/* 导航 */
.mbx-nav{
  grid-column:2;
  display:flex;
  align-items:center;
  justify-content:center;
  min-width:0;
}
.mbx-nav__list{
  display:flex;
  align-items:center;
  gap:2px;
}
.mbx-nav__item{display:block}
.mbx-nav__link{
  display:inline-flex;
  align-items:center;
  padding:10px 14px;
  border-radius:var(--mbx-r-pill);
  font-family:var(--mbx-body);
  font-size:15px;font-weight:600;line-height:1;
  color:rgba(247,242,232,.82);
  white-space:nowrap;
  transition:color .2s var(--mbx-ease),background-color .2s var(--mbx-ease);
}
.mbx-nav__link:hover{color:var(--mbx-paper);background:rgba(247,242,232,.09)}
.mbx-nav__link[aria-current="page"]{
  background:var(--mbx-orange-500);
  color:var(--mbx-ink-950);
}
.mbx-nav__cta{display:none}

/* 右侧工具区 */
.mbx-header__tools{
  grid-column:3;
  justify-self:end;
  display:flex;
  align-items:center;
  gap:10px;
}
.mbx-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 13px;
  border:1px solid var(--mbx-ink-600);
  border-radius:var(--mbx-r-pill);
  font-family:var(--mbx-mono);
  font-size:12px;line-height:1;
  letter-spacing:.04em;
  color:var(--mbx-paper-70);
  white-space:nowrap;
}
.mbx-badge__dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--mbx-green-400);
  box-shadow:0 0 0 3px rgba(79,214,156,.16);
}

/* 移动菜单按钮 */
.mbx-navtoggle{
  grid-column:3;
  justify-self:end;
  display:none;
  align-items:center;
  gap:10px;
  padding:10px 14px;
  border:1px solid var(--mbx-ink-600);
  border-radius:var(--mbx-r-pill);
  color:var(--mbx-paper);
  font-size:14px;font-weight:600;line-height:1;
}
.mbx-navtoggle__bars{display:grid;gap:4px;width:18px}
.mbx-navtoggle__bars span{
  display:block;height:2px;border-radius:2px;
  background:currentColor;
  transition:transform .24s var(--mbx-ease),opacity .24s var(--mbx-ease);
}
.mbx-navtoggle[aria-expanded="true"] .mbx-navtoggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.mbx-navtoggle[aria-expanded="true"] .mbx-navtoggle__bars span:nth-child(2){opacity:0}
.mbx-navtoggle[aria-expanded="true"] .mbx-navtoggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 阅读进度 */
.mbx-progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  pointer-events:none;
}
.mbx-progress__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);
  transform-origin:left center;
  background:linear-gradient(90deg,var(--mbx-orange-500),var(--mbx-blue-500));
}

/* ---------- 头部断点 ---------- */
@media (max-width:1180px){
  .mbx-header__tools .mbx-btn--ghost{display:none}
}
@media (max-width:1023px){
  .mbx-header__bar{grid-template-columns:minmax(0,1fr) auto;gap:12px}
  .mbx-header__tools{display:none}
  .mbx-navtoggle{display:inline-flex}
  .mbx-nav{
    grid-column:auto;
    position:fixed;
    top:calc(var(--mbx-header-h) + 6px);
    left:var(--mbx-gutter);
    right:var(--mbx-gutter);
    display:none;
    flex-direction:column;
    align-items:stretch;
    padding:14px;
    background:var(--mbx-ink-800);
    border:1px solid var(--mbx-ink-600);
    border-radius:26px;
    box-shadow:0 34px 70px -34px rgba(0,0,0,.95);
    max-height:calc(100vh - var(--mbx-header-h) - 32px);
    overflow-y:auto;
    z-index:110;
  }
  .mbx-nav[data-open]{display:flex}
  .mbx-nav__list{flex-direction:column;align-items:stretch;gap:4px}
  .mbx-nav__link{
    display:flex;width:100%;
    padding:14px 16px;
    border-radius:var(--mbx-r-md);
    font-size:17px;
    color:var(--mbx-paper);
    background:rgba(247,242,232,.04);
  }
  .mbx-nav__link:hover{background:rgba(247,242,232,.1)}
  .mbx-nav__cta{
    display:flex;flex-direction:column;gap:10px;
    margin-top:14px;padding-top:16px;
    border-top:1px solid var(--mbx-ink-600);
  }
}
@media (max-width:1023px){
  :root{--mbx-gutter:18px;--mbx-header-h:66px}
  .mbx-header__bar{padding:12px var(--mbx-gutter)}
  .mbx-brand__name{font-size:18px}
}

/* ============================================================
   按钮
   ============================================================ */
.mbx-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 18px;
  border:1px solid transparent;
  border-radius:var(--mbx-r-pill);
  font-family:var(--mbx-body);
  font-size:15px;font-weight:600;line-height:1;
  white-space:nowrap;
  transition:transform .18s var(--mbx-ease),background-color .18s var(--mbx-ease),border-color .18s var(--mbx-ease),color .18s var(--mbx-ease);
}
.mbx-btn--primary{background:var(--mbx-orange-500);color:var(--mbx-ink-950)}
.mbx-btn--primary:hover{background:var(--mbx-orange-300);transform:translateY(-2px)}
.mbx-btn--ghost{border-color:var(--mbx-ink-600);color:var(--mbx-paper)}
.mbx-btn--ghost:hover{border-color:var(--mbx-blue-500);color:var(--mbx-blue-500);transform:translateY(-2px)}
.mbx-btn--block{width:100%}
.mbx-btn:disabled,.mbx-btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none}

/* ============================================================
   页脚
   ============================================================ */
.mbx-footer{
  position:relative;
  margin-top:96px;
  padding:124px 0 34px;
  background:var(--mbx-blue-800);
  color:var(--mbx-paper);
}
.mbx-footer__edge{
  position:absolute;top:0;left:0;right:0;height:76px;
  background:var(--mbx-ink-950);
  clip-path:polygon(0 0,100% 0,100% 20%,0 100%);
  pointer-events:none;
}
.mbx-footer__inner{
  max-width:var(--mbx-max);
  margin:0 auto;
  padding:0 var(--mbx-gutter);
}
.mbx-footer__top{
  display:grid;
  grid-template-columns:minmax(240px,1fr) minmax(0,2.1fr);
  gap:48px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(247,242,232,.16);
}
.mbx-footer__brand{display:flex;flex-direction:column;gap:18px;align-items:flex-start}
.mbx-footer__tagline{
  max-width:28ch;
  font-size:15px;
  color:rgba(247,242,232,.78);
}
.mbx-footer__chips{display:flex;flex-wrap:wrap;gap:8px}
.mbx-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 12px;
  border:1px solid rgba(247,242,232,.22);
  border-radius:var(--mbx-r-pill);
  font-family:var(--mbx-mono);
  font-size:12px;line-height:1;
  letter-spacing:.04em;
  color:var(--mbx-paper-70);
}
.mbx-chip--live{
  border-color:transparent;
  background:var(--mbx-orange-500);
  color:var(--mbx-ink-950);
  font-weight:600;
}
.mbx-chip__dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--mbx-ink-950);
}
.mbx-footer__grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.mbx-footer__col{display:flex;flex-direction:column;gap:14px}
.mbx-footer__title{
  font-family:var(--mbx-mono);
  font-size:12px;font-weight:500;line-height:1;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mbx-orange-300);
}
.mbx-footer__list{display:flex;flex-direction:column;gap:10px}
.mbx-footer__link{
  display:inline-block;
  font-size:15px;line-height:1.5;
  color:rgba(247,242,232,.78);
  transition:color .18s var(--mbx-ease),transform .18s var(--mbx-ease);
}
.mbx-footer__link:hover{color:var(--mbx-blue-500);transform:translateX(3px)}
.mbx-footer__contact{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr)) minmax(0,1.5fr);
  gap:24px;
  padding:36px 0;
  border-bottom:1px solid rgba(247,242,232,.16);
}
.mbx-footer__fact{display:flex;flex-direction:column;gap:10px}
.mbx-footer__fact-key{
  font-family:var(--mbx-mono);
  font-size:12px;line-height:1;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mbx-orange-300);
}
.mbx-footer__fact-val{
  font-size:15px;line-height:1.7;
  color:rgba(247,242,232,.86);
  word-break:break-word;
}
.mbx-footer__fact--note .mbx-footer__fact-val{color:var(--mbx-paper-70)}
.mbx-footer__base{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:10px 22px;
  padding-top:26px;
  font-size:13px;
  color:var(--mbx-paper-70);
}
.mbx-footer__copy{font-family:var(--mbx-mono);letter-spacing:.04em}
.mbx-footer__icp{font-family:var(--mbx-mono);letter-spacing:.04em}
.mbx-footer__legal{display:flex;flex-wrap:wrap;gap:16px}
.mbx-footer__legal .mbx-footer__link{font-size:13px}

/* 右下角常驻胶囊 */
.mbx-fab{
  position:fixed;
  right:20px;bottom:20px;
  z-index:90;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 19px;
  border-radius:var(--mbx-r-pill);
  background:var(--mbx-orange-500);
  color:var(--mbx-ink-950);
  font-family:var(--mbx-body);
  font-size:14px;font-weight:700;line-height:1;
  box-shadow:0 20px 44px -20px rgba(255,106,26,.95);
  transition:transform .2s var(--mbx-ease),background-color .2s var(--mbx-ease);
}
.mbx-fab:hover{transform:translateY(-3px);background:var(--mbx-orange-300)}
.mbx-fab__dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--mbx-ink-950);
  box-shadow:0 0 0 4px rgba(4,26,20,.18);
}

@media (max-width:1023px){
  .mbx-footer{margin-top:72px;padding-top:104px}
  .mbx-footer__top{grid-template-columns:1fr;gap:36px}
  .mbx-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mbx-footer__contact{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .mbx-footer{padding-bottom:96px}
  .mbx-footer__grid{grid-template-columns:1fr;gap:28px}
  .mbx-footer__contact{grid-template-columns:1fr;gap:22px}
  .mbx-fab{right:14px;bottom:14px;padding:12px 16px;font-size:13px}
}

/* ============================================================
   通用内容骨架
   ============================================================ */
.mbx-main{display:block}
.mbx-shell{
  width:100%;
  max-width:var(--mbx-max);
  margin:0 auto;
  padding:0 var(--mbx-gutter);
}
.mbx-grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--mbx-gutter);
}
.mbx-section{padding:88px 0}
.mbx-section--tight{padding:52px 0}

.mbx-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mbx-mono);
  font-size:12px;line-height:1;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mbx-orange-300);
}
.mbx-display{
  font-family:var(--mbx-display);
  font-weight:700;
  font-size:clamp(44px,8vw,128px);
  line-height:.92;
  letter-spacing:-.02em;
}
.mbx-h2{
  font-family:var(--mbx-display);
  font-weight:600;
  font-size:clamp(22px,3vw,38px);
  line-height:1.15;
  letter-spacing:-.01em;
}
.mbx-h3{
  font-family:var(--mbx-display);
  font-weight:600;
  font-size:clamp(19px,2vw,24px);
  line-height:1.25;
}
.mbx-lead{
  font-size:19px;
  line-height:1.7;
  color:rgba(247,242,232,.9);
}
.mbx-note{
  font-size:14px;
  line-height:1.7;
  color:var(--mbx-paper-70);
}
.mbx-prose{
  max-width:68ch;
  font-size:17px;
  line-height:1.75;
  color:rgba(247,242,232,.86);
}
.mbx-prose p+p{margin-top:16px}
.mbx-prose a{
  color:var(--mbx-blue-500);
  border-bottom:1px solid rgba(41,199,245,.4);
}
.mbx-prose a:hover{border-bottom-color:var(--mbx-blue-500)}
.mbx-prose strong{color:var(--mbx-paper);font-weight:600}
.mbx-list{display:flex;flex-direction:column;gap:12px}
.mbx-list li{
  position:relative;
  padding-left:24px;
  font-size:16px;
  line-height:1.7;
  color:rgba(247,242,232,.86);
}
.mbx-list li::before{
  content:"";
  position:absolute;left:0;top:.72em;
  width:12px;height:2px;border-radius:2px;
  background:var(--mbx-orange-500);
}
.mbx-divider{
  height:1px;
  background:var(--mbx-ink-600);
  border:0;
  margin:0;
}
.mbx-tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 12px;
  border-radius:var(--mbx-r-pill);
  border:1px solid var(--mbx-ink-600);
  font-family:var(--mbx-mono);
  font-size:12px;line-height:1;
  letter-spacing:.06em;
  color:var(--mbx-paper-70);
}
.mbx-panel{
  background:var(--mbx-ink-800);
  border:1px solid var(--mbx-ink-600);
  border-radius:var(--mbx-r-lg);
  padding:28px;
}

/* 面包屑 */
.mbx-crumbs{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:10px;
  font-family:var(--mbx-mono);
  font-size:12px;line-height:1;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mbx-paper-70);
}
.mbx-crumbs a{transition:color .18s var(--mbx-ease)}
.mbx-crumbs a:hover{color:var(--mbx-blue-500)}
.mbx-crumbs__sep{color:var(--mbx-ink-600)}

/* 侧栏 / 顶部索引 */
.mbx-index{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.mbx-index__link{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:9px 12px 9px 0;
  border-left:2px solid var(--mbx-ink-600);
  padding-left:12px;
  font-size:14px;
  line-height:1.4;
  color:var(--mbx-paper-70);
  transition:color .2s var(--mbx-ease),border-color .2s var(--mbx-ease);
}
.mbx-index__link:hover{color:var(--mbx-paper);border-color:var(--mbx-blue-500)}
.mbx-index__link[aria-current="true"]{
  color:var(--mbx-orange-500);
  border-color:var(--mbx-orange-500);
}
.mbx-index__num{
  font-family:var(--mbx-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--mbx-ink-600);
}
.mbx-index__link[aria-current="true"] .mbx-index__num{color:var(--mbx-orange-300)}

/* 图片容器 */
.mbx-media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  border-radius:var(--mbx-r-lg);
  background:var(--mbx-ink-800);
  box-shadow:inset 0 0 0 1px var(--mbx-ink-600);
}
.mbx-media--wide{aspect-ratio:21/9;border-radius:var(--mbx-r-lg)}
.mbx-media--portrait{aspect-ratio:3/4}
.mbx-media img{
  width:100%;height:100%;
  object-fit:cover;
  filter:saturate(.86) contrast(1.03);
}
.mbx-media::after{
  content:"";
  position:absolute;inset:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(4,26,20,.16) 1px,transparent 1px);
  background-size:100% 48px;
  opacity:.5;
}
.mbx-media__caption{
  position:absolute;
  left:16px;right:16px;bottom:14px;
  z-index:2;
  font-family:var(--mbx-mono);
  font-size:12px;line-height:1.5;
  letter-spacing:.06em;
  color:var(--mbx-paper);
  text-shadow:0 2px 12px rgba(4,26,20,.9);
}

/* 进视口显现 */
@media (prefers-reduced-motion:no-preference){
  [data-reveal]{
    opacity:0;
    transform:translateY(16px);
    transition:opacity .42s var(--mbx-ease),transform .42s var(--mbx-ease);
    transition-delay:var(--mbx-delay,0ms);
    will-change:opacity,transform;
  }
  [data-reveal].is-in{opacity:1;transform:none;will-change:auto}
}

/* ---------- 响应式骨架 ---------- */
@media (max-width:1023px){
  body{font-size:16px}
  .mbx-section{padding:64px 0}
  .mbx-panel{padding:22px;border-radius:22px}
  .mbx-media{border-radius:22px}
  .mbx-index{
    flex-direction:row;
    overflow-x:auto;
    gap:8px;
    padding-bottom:6px;
  }
  .mbx-index__link{
    border-left:0;
    border-bottom:2px solid var(--mbx-ink-600);
    padding:8px 12px;
    white-space:nowrap;
  }
  .mbx-grid{grid-template-columns:repeat(6,minmax(0,1fr))}
}
@media (max-width:640px){
  .mbx-lead{font-size:17px}
  .mbx-display{font-size:clamp(38px,12vw,64px)}
}

/* ---------- 无障碍降级 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
}