/* ==========================================================================
   迈博体育主站 / site.css
   共享外壳：reset、变量、中文排版、头部、页脚、通用组件
   ========================================================================== */

:root{
  --mb-night:#0B2B24;
  --mb-moss:#14453A;
  --mb-line:#2F6B54;
  --mb-stone:#3A3F3C;
  --mb-cream:#F2EFE6;
  --mb-cyan:#32E0C4;
  --mb-amber:#FF8A3D;
  --mb-clay:#B5643C;
  --mb-shadow:#071A15;
  --mb-white:#FFFFFF;
  --mb-ink:#06231C;

  --mb-shell:1220px;
  --mb-gutter:clamp(18px,4vw,44px);
  --mb-radius-lg:28px;
  --mb-radius-md:18px;
  --mb-radius-sm:12px;
  --mb-pill:999px;
  --mb-hair:2px;
  --mb-ease:cubic-bezier(.22,.61,.36,1);

  --mb-font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mb-font-mono:"SF Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
}

/* --------------------------------------------------------------- reset -- */
*,*::before,*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:112px;
}

body{
  margin:0;
  background:var(--mb-night);
  color:var(--mb-cream);
  font-family:var(--mb-font-sans);
  font-size:16px;
  line-height:1.6;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4,h5,h6{
  margin:0;
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.01em;
  word-break:break-word;
}

p{margin:0;}

ul,ol{margin:0;padding:0;list-style:none;}

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

a{color:var(--mb-cyan);text-decoration:none;}
a:hover{text-decoration:underline;text-underline-offset:3px;}

button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}

table{border-collapse:collapse;width:100%;}

:focus-visible{
  outline:3px solid var(--mb-cyan);
  outline-offset:3px;
  border-radius:4px;
}

::selection{background:rgba(50,224,196,.35);color:var(--mb-white);}

/* -------------------------------------------------------- 排版工具类 -- */
.t-display{
  font-size:clamp(34px,6vw,68px);
  font-weight:900;
  line-height:1.02;
  letter-spacing:-.025em;
}

.t-title{
  font-size:clamp(24px,3.4vw,40px);
  font-weight:800;
  line-height:1.1;
}

.t-kicker{
  font-size:12px;
  font-weight:700;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--mb-cyan);
}

.vertical-note{
  writing-mode:vertical-rl;
  font-size:12px;
  letter-spacing:.3em;
  color:rgba(242,239,230,.5);
}

.muted{color:rgba(242,239,230,.6);}

.num,
.bigfee__value,
.navstage__cta{
  font-family:var(--mb-font-mono);
  font-variant-numeric:tabular-nums lining-nums;
}

.visually-hidden{
  position:absolute;
  width:1px;height:1px;
  margin:-1px;padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  clip-path:inset(50%);
  white-space:nowrap;
  border:0;
}

/* --------------------------------------------------------- 跳转链接 -- */
.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:200;
  transform:translateY(-220%);
  padding:12px 20px;
  border-radius:var(--mb-pill);
  background:var(--mb-cyan);
  color:var(--mb-shadow);
  font-size:14px;
  font-weight:800;
  letter-spacing:.04em;
  transition:transform .22s var(--mb-ease);
}

.skip-link:focus,
.skip-link:focus-visible{
  transform:translateY(0);
  outline-offset:2px;
  text-decoration:none;
}

/* --------------------------------------------------------- 容器网格 -- */
.shell{
  width:100%;
  max-width:var(--mb-shell);
  margin-inline:auto;
  padding-inline:var(--mb-gutter);
}

#main-content{display:block;outline:none;}

.grid12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(16px,2.4vw,28px);
}

.col-3{grid-column:span 3;}
.col-4{grid-column:span 4;}
.col-6{grid-column:span 6;}
.col-8{grid-column:span 8;}
.col-9{grid-column:span 9;}
.col-12{grid-column:span 12;}

.section{padding-block:clamp(34px,5vw,64px);}

.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:12px 22px;
  margin-bottom:clamp(18px,2.6vw,30px);
}

/* =============================================================== 头部 == */
.masthead{
  position:relative;
  z-index:80;
  background:var(--mb-night);
}

/* -- 上层：品牌说明带 ---------------------------------------------- */
.brandbar{
  background:var(--mb-shadow);
  color:var(--mb-cream);
  border-bottom:1px solid rgba(255,255,255,.09);
}

.brandbar__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 22px;
  min-height:46px;
  padding-block:9px;
}

.brandbar__mark{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:6px 14px;
  margin:0;
}

.brandbar__name{
  font-size:15px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--mb-white);
}

.brandbar__tag{
  font-size:12.5px;
  letter-spacing:.05em;
  color:rgba(242,239,230,.64);
}

.brandbar__meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 12px;
  margin:0;
}

.brandbar__chip{
  padding:3px 11px;
  border-radius:var(--mb-pill);
  border:1px solid rgba(50,224,196,.48);
  color:var(--mb-cyan);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.1em;
  white-space:nowrap;
}

.brandbar__chip--quiet{
  border-color:rgba(242,239,230,.22);
  color:rgba(242,239,230,.68);
}

.brandbar__contact{
  font-family:var(--mb-font-mono);
  font-size:12px;
  letter-spacing:.02em;
  color:rgba(242,239,230,.8);
  white-space:nowrap;
}

/* -- 下层：栏目条 -------------------------------------------------- */
.navstage{
  position:sticky;
  top:0;
  z-index:70;
  background:var(--mb-night);
  border-bottom:var(--mb-hair) solid rgba(255,255,255,.16);
}

.navstage__inner{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 14px;
  min-height:58px;
  padding-block:6px;
}

.navstage__toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 15px 9px 13px;
  border-radius:var(--mb-pill);
  border:1px solid rgba(255,255,255,.26);
  color:var(--mb-cream);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  transition:border-color .18s var(--mb-ease),color .18s var(--mb-ease);
}

.navstage__toggle:hover{
  border-color:var(--mb-cyan);
  color:var(--mb-cyan);
}

.navstage__bars{
  position:relative;
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:background .18s var(--mb-ease);
}

.navstage__bars::before,
.navstage__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform .24s var(--mb-ease);
}

.navstage__bars::before{top:-6px;}
.navstage__bars::after{top:6px;}

.masthead[data-open] .navstage__bars{background:transparent;}
.masthead[data-open] .navstage__bars::before{transform:translateY(6px) rotate(45deg);}
.masthead[data-open] .navstage__bars::after{transform:translateY(-6px) rotate(-45deg);}

.navstage__drawer{
  flex:1 1 auto;
  min-width:0;
}

.navstage__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:2px;
}

.navstage__item{position:relative;}

.navstage__link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:10px 13px;
  border-radius:var(--mb-radius-sm);
  color:rgba(242,239,230,.78);
  font-size:14px;
  font-weight:600;
  letter-spacing:.05em;
  white-space:nowrap;
  transition:color .18s var(--mb-ease),background .18s var(--mb-ease);
}

.navstage__link::after{
  content:"";
  position:absolute;
  left:13px;
  right:13px;
  bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--mb-cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--mb-ease),background .18s var(--mb-ease);
}

.navstage__link:hover{
  color:var(--mb-white);
  background:rgba(255,255,255,.06);
  text-decoration:none;
}

.navstage__link:hover::after{
  background:rgba(242,239,230,.45);
  transform:scaleX(1);
}

.navstage__link[aria-current="page"]{
  color:var(--mb-cyan);
}

.navstage__link[aria-current="page"]::after{
  background:var(--mb-cyan);
  transform:scaleX(1);
}

.navstage__cta{
  flex:0 0 auto;
  margin-left:auto;
  padding:9px 18px;
  border-radius:var(--mb-pill);
  background:var(--mb-amber);
  color:var(--mb-shadow);
  font-size:13px;
  font-weight:800;
  letter-spacing:.05em;
  white-space:nowrap;
  transition:background .18s var(--mb-ease),color .18s var(--mb-ease);
}

.navstage__cta:hover{
  background:var(--mb-cyan);
  color:var(--mb-shadow);
  text-decoration:none;
}

.navstage__progress{
  position:absolute;
  left:0;
  bottom:-2px;
  width:0;
  height:2px;
  background:var(--mb-amber);
  pointer-events:none;
}

/* =============================================================== 页脚 == */
.stadfoot{
  margin-top:clamp(44px,7vw,96px);
  padding:clamp(34px,5vw,60px) 0 24px;
  background:var(--mb-shadow);
  border-top:var(--mb-hair) solid rgba(255,255,255,.18);
  color:rgba(242,239,230,.76);
}

.stadfoot__grid{
  display:grid;
  grid-template-columns:1.35fr 1fr 1.3fr 1fr;
  gap:clamp(22px,3vw,42px);
}

.stadfoot__col{min-width:0;}

.stadfoot__brand{
  margin:0 0 10px;
  font-size:17px;
  font-weight:800;
  letter-spacing:.12em;
  color:var(--mb-white);
}

.stadfoot__note{
  max-width:36ch;
  font-size:13.5px;
  line-height:1.75;
  color:rgba(242,239,230,.6);
}

.stadfoot__title{
  margin:0 0 14px;
  padding-top:10px;
  border-top:2px solid rgba(50,224,196,.4);
  font-size:12px;
  font-weight:700;
  letter-spacing:.24em;
  color:var(--mb-cyan);
}

.stadfoot__links{
  display:flex;
  flex-direction:column;
  gap:9px;
}

.stadfoot__links a{
  color:rgba(242,239,230,.76);
  font-size:13.5px;
  letter-spacing:.03em;
}

.stadfoot__links a:hover{
  color:var(--mb-cyan);
  text-decoration:none;
}

.stadfoot__facts{
  display:flex;
  flex-direction:column;
  gap:11px;
}

.stadfoot__fact{
  display:flex;
  flex-direction:column;
  gap:2px;
  margin:0;
  font-size:13.5px;
  line-height:1.65;
}

.stadfoot__fact span:first-child{
  font-size:11.5px;
  letter-spacing:.18em;
  color:rgba(242,239,230,.42);
}

.stadfoot__icp{
  margin:16px 0 0;
  font-family:var(--mb-font-mono);
  font-size:12px;
  letter-spacing:.03em;
  color:rgba(242,239,230,.5);
}

.stadfoot__legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 22px;
  margin-top:clamp(26px,4vw,46px);
  padding-top:18px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:12.5px;
  color:rgba(242,239,230,.5);
}

.stadfoot__legal p{margin:0;}

/* ========================================================== 通用组件 == */
.btn{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:12px 22px;
  border:2px solid transparent;
  border-radius:var(--mb-pill);
  font-size:14px;
  font-weight:800;
  letter-spacing:.05em;
  transition:background .18s var(--mb-ease),color .18s var(--mb-ease),
             border-color .18s var(--mb-ease),transform .18s var(--mb-ease);
}

.btn:hover{text-decoration:none;transform:translateY(-2px);}

.btn--signal{
  background:var(--mb-cyan);
  color:var(--mb-shadow);
}

.btn--signal:hover{background:var(--mb-white);}

.btn--ghost{
  border-color:rgba(242,239,230,.34);
  color:var(--mb-cream);
}

.btn--ghost:hover{
  border-color:var(--mb-cyan);
  color:var(--mb-cyan);
}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--mb-pill);
  border:1px solid rgba(242,239,230,.22);
  color:rgba(242,239,230,.78);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.1em;
  white-space:nowrap;
}

.chip--cyan{border-color:rgba(50,224,196,.5);color:var(--mb-cyan);}
.chip--amber{border-color:rgba(255,138,61,.5);color:var(--mb-amber);}
.chip--clay{border-color:rgba(181,100,60,.6);color:#D98B62;}
.chip--quiet{border-color:rgba(242,239,230,.16);color:rgba(242,239,230,.55);}

.crumbnav{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:12.5px;
  letter-spacing:.06em;
  color:rgba(242,239,230,.5);
}

.crumbnav a{color:rgba(242,239,230,.7);}
.crumbnav a:hover{color:var(--mb-cyan);text-decoration:none;}

.crumbnav__sep{color:var(--mb-amber);}

.panel{
  position:relative;
  padding:clamp(20px,3vw,34px);
  border:var(--mb-hair) solid rgba(255,255,255,.12);
  border-radius:var(--mb-radius-lg);
  background:var(--mb-night);
}

.panel--moss{background:var(--mb-moss);}

.panel--light{
  background:var(--mb-cream);
  color:var(--mb-ink);
  border-color:rgba(11,43,36,.18);
}

.panel + .panel{margin-top:clamp(16px,2.4vw,26px);}

.panel__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px 20px;
  margin-bottom:16px;
  padding-bottom:14px;
  border-bottom:1px solid rgba(255,255,255,.14);
}

.panel--light .panel__head{border-bottom-color:rgba(11,43,36,.16);}

.panel__index{
  font-family:var(--mb-font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--mb-amber);
}

.panel__title{
  font-size:clamp(18px,2.2vw,24px);
  font-weight:800;
}

.panel__body{min-width:0;}

.panel--light .panel__index{color:var(--mb-clay);}

.rail{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:14px;
}

.rail__title{
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.26em;
  color:rgba(242,239,230,.48);
}

.rail__list{
  border-left:2px solid rgba(255,255,255,.16);
}

.rail__link{
  display:block;
  margin-left:-2px;
  padding:9px 12px 9px 13px;
  border-left:3px solid transparent;
  color:rgba(242,239,230,.72);
  font-size:14px;
  letter-spacing:.03em;
  transition:color .18s var(--mb-ease),background .18s var(--mb-ease),
             border-color .18s var(--mb-ease);
}

.rail__link:hover{
  background:rgba(255,255,255,.06);
  color:var(--mb-white);
  text-decoration:none;
}

.rail__link[aria-current="true"]{
  border-left-color:var(--mb-cyan);
  background:rgba(50,224,196,.1);
  color:var(--mb-cyan);
}

.card{
  min-width:0;
  padding:18px 20px;
  border:var(--mb-hair) solid rgba(255,255,255,.1);
  border-radius:var(--mb-radius-md);
  background:var(--mb-moss);
  transition:border-color .18s var(--mb-ease),transform .18s var(--mb-ease);
}

.card:hover{
  border-color:rgba(50,224,196,.5);
  transform:translateY(-3px);
}

.card__top{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:10px;
}

.card__title{font-size:16.5px;font-weight:800;}

.card__body{
  font-size:14px;
  line-height:1.66;
  color:rgba(242,239,230,.74);
}

.card__body p{margin:0 0 10px;}
.card__body p:last-child{margin-bottom:0;}

.card__foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:14px;
  padding-top:13px;
  border-top:1px solid rgba(255,255,255,.12);
}

.bigfee{
  display:flex;
  flex-direction:column;
  gap:5px;
  padding:16px 20px;
  border:1px solid rgba(255,138,61,.42);
  border-radius:var(--mb-radius-md);
  background:linear-gradient(135deg,rgba(255,138,61,.17),rgba(255,138,61,.03));
}

.bigfee__value{
  font-size:clamp(28px,4.4vw,46px);
  font-weight:800;
  line-height:1;
  color:var(--mb-amber);
}

.bigfee__label{
  font-size:11.5px;
  letter-spacing:.18em;
  color:rgba(242,239,230,.62);
}

.prose{
  max-width:68ch;
  font-size:15.5px;
  line-height:1.75;
  color:rgba(242,239,230,.82);
}

.prose p{margin:0 0 14px;}
.prose p:last-child{margin-bottom:0;}

.prose h2{
  margin:26px 0 12px;
  font-size:clamp(20px,2.4vw,26px);
  line-height:1.2;
}

.prose h3{
  margin:20px 0 10px;
  font-size:17px;
}

.prose ul,
.prose ol{
  margin:0 0 16px;
  padding-left:1.35em;
  list-style:revert;
}

.prose li{
  list-style:revert;
  margin-bottom:6px;
}

.prose a{
  color:var(--mb-cyan);
  text-decoration:underline;
  text-underline-offset:3px;
}

.panel--light .prose{color:rgba(6,35,28,.82);}
.panel--light .prose a{color:var(--mb-line);}

/* ====================================================== 图片容器基础 == */
.frame{
  position:relative;
  overflow:hidden;
  border:var(--mb-hair) solid rgba(255,255,255,.14);
  border-radius:var(--mb-radius-lg);
  background:var(--mb-moss);
  isolation:isolate;
}

.frame__media{
  display:block;
  width:100%;
  height:100%;
  aspect-ratio:16 / 9;
  object-fit:cover;
}

.frame--wide .frame__media{aspect-ratio:21 / 9;}
.frame--tall .frame__media{aspect-ratio:3 / 4;}
.frame--square .frame__media{aspect-ratio:1 / 1;}

.frame--turf::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:0;
  background-image:repeating-linear-gradient(
    90deg,
    rgba(47,107,84,.34) 0 26px,
    rgba(47,107,84,.14) 26px 52px
  );
}

.frame--board::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:0;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.09) 0 1px,transparent 1px 22px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 44px),
    radial-gradient(circle at 22% 18%,rgba(50,224,196,.22),transparent 58%);
}

.frame--turf .frame__media,
.frame--board .frame__media{position:relative;z-index:1;}

.frame__grid{
  position:absolute;
  inset:0;
  z-index:2;
  pointer-events:none;
  border-bottom:3px solid rgba(255,255,255,.55);
}

.frame__cap{
  position:absolute;
  left:16px;
  bottom:14px;
  z-index:3;
  padding:5px 12px;
  border-radius:var(--mb-pill);
  background:rgba(7,26,21,.72);
  color:var(--mb-cream);
  font-family:var(--mb-font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
}

/* -------------------------------------------------- 滚动显现状态机 -- */
[data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .5s var(--mb-ease),transform .5s var(--mb-ease);
}

[data-reveal].is-in{
  opacity:1;
  transform:none;
}

/* ============================================================ 响应式 == */
@media (max-width:1024px){
  .col-3,
  .col-9,
  .col-8{grid-column:span 12;}
  .col-4,
  .col-6{grid-column:span 6;}

  .rail{position:static;top:auto;}

  .stadfoot__grid{grid-template-columns:1fr 1fr;}
}

@media (max-width:920px){
  html{scroll-padding-top:92px;}

  .brandbar__inner{
    align-items:flex-start;
    gap:6px 16px;
  }

  .brandbar__tag{display:none;}
  .brandbar__contact{font-size:11.5px;}

  .navstage__inner{
    gap:10px;
    min-height:54px;
    padding-block:8px;
  }

  .navstage__toggle{display:inline-flex;}

  .navstage__cta{margin-left:auto;}

  .navstage__drawer{
    order:5;
    flex:1 0 100%;
    max-height:0;
    overflow:hidden;
    transition:max-height .34s var(--mb-ease);
  }

  .masthead[data-open] .navstage__drawer{
    max-height:32rem;
    overflow:auto;
  }

  .navstage__list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:10px 0 18px;
  }

  .navstage__link{
    width:100%;
    padding:13px 13px;
    border-radius:var(--mb-radius-sm);
    font-size:15px;
  }

  .navstage__link::after{display:none;}

  .navstage__link[aria-current="page"]{
    background:rgba(50,224,196,.14);
    color:var(--mb-cyan);
  }
}

@media (max-width:680px){
  .col-4,
  .col-6{grid-column:span 12;}

  .stadfoot__grid{grid-template-columns:1fr;}

  .stadfoot__legal{
    flex-direction:column;
    align-items:flex-start;
  }

  .frame__media,
  .frame--wide .frame__media{aspect-ratio:4 / 3;}
}

/* ===================================================== 动效降级处理 == */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}

  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }

  [data-reveal]{
    opacity:1;
    transform:none;
  }

  .btn:hover,
  .card:hover{transform:none;}
}