/* ============================================================
   Site Kit · 明博体育官网 中文站 V4 · /assets/site.css
   冰城竞技档案室：深墨轨道 + 冰面底 + 纸张叠层 + 赛况强调色
   ============================================================ */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-700);
  background-color:var(--ice-050);
  background-image:repeating-linear-gradient(180deg,rgba(169,196,214,.16) 0 1px,transparent 1px 112px);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote{margin:0}
img,svg,video{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:0}
a{color:var(--cyan-read);text-decoration-thickness:1px;text-underline-offset:3px}
[hidden]{display:none !important}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

/* ---------- 2. tokens ---------- */
:root{
  --ink-900:#0B1220;
  --ink-700:#16233A;
  --ice-050:#F2F7FB;
  --ice-100:#E6EFF6;
  --ice-300:#A9C4D6;
  --frost-700:#1F6079;
  --cyan:#16E0D2;
  --cyan-read:#0E8F86;
  --amber:#FF8A3D;
  --amber-deep:#B4541B;
  --paper:#FFFFFF;
  --rail-w:96px;
  --rail-open:252px;
  --topbar-h:58px;
  --shell-pad:clamp(20px,4vw,56px);
  --font-head:"Oswald","Barlow Condensed","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --shadow-paper:4px 4px 0 rgba(31,96,121,.13);
  --shadow-paper-hover:6px 8px 0 rgba(31,96,121,.17);
  --line-ice:1px solid var(--ice-300);
}

/* ---------- 3. 排版 ---------- */
.mb-h1,.mb-h2,.mb-h3,.mb-h4{font-family:var(--font-head);font-weight:700;letter-spacing:-.5px;line-height:1.14;color:var(--ink-900)}
.mb-h1{font-size:clamp(34px,5.2vw,68px);letter-spacing:-.8px}
.mb-h2{font-size:clamp(24px,3vw,40px)}
.mb-h3{font-size:clamp(19px,2.1vw,24px);letter-spacing:0}
.mb-h4{font-size:17px;letter-spacing:.02em;line-height:1.45}
.mb-lede{font-size:clamp(17px,1.6vw,19.5px);line-height:1.75;color:var(--frost-700);max-width:62ch}
.mb-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:0}
.mb-eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan-read)}
.mb-eyebrow::before{content:"";width:26px;height:1px;background:currentColor;opacity:.6}
.mb-body{max-width:70ch;font-size:16.5px}
.mb-body p{margin:0 0 1.2em}
.mb-body p:last-child{margin-bottom:0}
.mb-body h3,.mb-body .mb-h3{margin:1.6em 0 .6em}
.mb-body ul{margin:0 0 1.2em;padding:0;list-style:none}
.mb-body ul li{position:relative;padding-left:20px;margin-bottom:.5em}
.mb-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;background:var(--cyan-read);transform:rotate(45deg)}
.mb-body a{border-bottom:1px solid var(--ice-300);text-decoration:none}
.mb-body a:hover{border-bottom-color:var(--cyan-read)}
.mb-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}

/* ---------- 4. 布局 ---------- */
.mb-container{width:min(1200px,100%);margin-inline:auto;padding-inline:var(--shell-pad)}
.mb-container--wide{width:min(1480px,100%)}
.mb-main{display:block;min-height:100vh}
.mb-section{padding-block:clamp(44px,6vw,88px)}
.mb-section--tight{padding-block:clamp(26px,3.4vw,50px)}
.mb-section--ink{background:var(--ink-900);color:#C9DCE8}
.mb-section--ink .mb-h1,.mb-section--ink .mb-h2,.mb-section--ink .mb-h3,.mb-section--ink .mb-h4{color:#F4FAFD}
.mb-section--ink .mb-lede{color:#A9C4D6}
.mb-section--ice{background:var(--ice-100)}
.mb-section--line{border-top:var(--line-ice)}
.mb-section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px 32px;margin-bottom:clamp(22px,3vw,38px)}
.mb-rule{height:1px;background:var(--ice-300);margin-block:clamp(26px,4vw,52px)}
.mb-grid{display:grid;gap:clamp(18px,2.6vw,36px)}
.mb-grid--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.mb-grid--5-7{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.mb-grid--8-4{grid-template-columns:minmax(0,8fr) minmax(0,4fr)}
.mb-grid--4-8{grid-template-columns:minmax(0,4fr) minmax(0,8fr)}
.mb-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.mb-grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.mb-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.mb-grid--tight{gap:14px}
.mb-page-head{position:relative;padding-block:clamp(34px,5vw,72px) clamp(24px,3.4vw,46px);border-bottom:var(--line-ice)}
.mb-page-head__grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(20px,3vw,44px);align-items:end}
.mb-page-head__meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}

/* ---------- 5. 头部轨道 ---------- */
.mb-skip{position:fixed;left:12px;top:-70px;z-index:120;padding:10px 16px;background:var(--cyan);color:#04231F;font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;text-decoration:none;transition:top .18s ease}
.mb-skip:focus{top:12px}

.mb-header{position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);z-index:70}
.mb-rail{
  position:absolute;top:0;left:0;bottom:0;width:var(--rail-w);
  display:flex;flex-direction:column;
  background:var(--ink-900);
  border-right:1px solid rgba(169,196,214,.2);
  overflow:hidden;
  transition:width .3s cubic-bezier(.22,.68,.24,1);
}
.mb-rail::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:repeating-linear-gradient(90deg,var(--cyan) 0 20px,rgba(22,224,210,.14) 20px 40px)}
.mb-topbar{display:none}

.mb-brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:#EAF4FA;font-family:var(--font-head)}
.mb-brand__mark{flex:0 0 auto;display:grid;place-items:center;width:42px;height:42px;border:1px solid var(--cyan);color:var(--cyan);font-family:var(--font-mono);font-size:14px;letter-spacing:.06em;background:linear-gradient(140deg,rgba(22,224,210,.18),rgba(22,224,210,0) 68%)}
.mb-brand__text{display:flex;flex-direction:column;min-width:0;white-space:nowrap}
.mb-brand__name{font-size:17px;font-weight:700;letter-spacing:.02em;line-height:1.3}
.mb-brand__sub{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:#8FA6BC;text-transform:uppercase;line-height:1.6}

.mb-rail__brand{display:flex;flex-direction:column;gap:14px;padding:22px 18px 18px;border-bottom:1px solid rgba(169,196,214,.16)}
.mb-rail .mb-brand__text{opacity:0;transform:translateX(-8px);transition:opacity .22s ease .04s,transform .22s ease .04s}
.mb-rail__version{align-self:flex-start;font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;padding:3px 6px;border:1px solid rgba(22,224,210,.5);background:rgba(22,224,210,.08);color:var(--cyan);white-space:nowrap}
.mb-rail__version-full{display:none}

.mb-rail__nav{flex:1 1 auto;padding:12px 0;overflow:hidden}
.mb-nav{display:flex;flex-direction:column;margin:0;padding:0;list-style:none}
.mb-nav__item{display:block}
.mb-nav__link{position:relative;display:flex;align-items:center;gap:14px;height:56px;padding:0 16px;color:#A9BFD2;text-decoration:none;font-family:var(--font-head);font-size:16px;letter-spacing:.02em;white-space:nowrap;transition:color .18s ease,background .18s ease}
.mb-nav__link::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;background:transparent;transition:background .18s ease,box-shadow .18s ease}
.mb-nav__code{flex:0 0 auto;width:26px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:#5F7C95;transition:color .18s ease}
.mb-nav__label{flex:0 0 auto}
.mb-nav__link:hover{color:#fff;background:rgba(22,224,210,.07)}
.mb-nav__link:hover .mb-nav__code{color:var(--cyan)}
.mb-nav__link[aria-current="page"]{color:#fff;background:linear-gradient(90deg,rgba(22,224,210,.17),rgba(22,224,210,0))}
.mb-nav__link[aria-current="page"]::before{background:var(--cyan);box-shadow:0 0 14px rgba(22,224,210,.85)}
.mb-nav__link[aria-current="page"] .mb-nav__code{color:var(--cyan)}

.mb-rail__status{display:flex;align-items:flex-start;gap:8px;padding:14px 16px 22px;border-top:1px solid rgba(169,196,214,.16);font-family:var(--font-mono);font-size:11.5px;line-height:1.65;color:#8FA6BC}
.mb-rail__status-text{min-width:0}
.mb-pulse{flex:0 0 auto;width:8px;height:8px;margin-top:6px;background:var(--cyan);animation:mb-pulse 2.4s ease-out infinite}
@keyframes mb-pulse{
  0%{box-shadow:0 0 0 0 rgba(22,224,210,.55)}
  70%{box-shadow:0 0 0 10px rgba(22,224,210,0)}
  100%{box-shadow:0 0 0 0 rgba(22,224,210,0)}
}

.mb-nav-toggle{display:none}
.mb-nav-toggle__bars{position:relative;display:block;width:16px;height:9px;border-top:1.5px solid currentColor;border-bottom:1.5px solid currentColor}
.mb-nav-toggle__text{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em}

/* ---------- 6. 按钮 / 标签 / 小签 ---------- */
.mb-btn{display:inline-flex;align-items:center;gap:10px;padding:11px 18px;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.1em;text-decoration:none;border:1px solid var(--frost-700);background:var(--paper);color:var(--ink-900);box-shadow:3px 3px 0 rgba(31,96,121,.18);cursor:pointer;transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease,border-color .16s ease}
.mb-btn:hover{transform:translate(2px,2px);box-shadow:1px 1px 0 rgba(31,96,121,.22)}
.mb-btn--signal{background:var(--cyan);border-color:var(--cyan);color:#03221F;font-weight:700}
.mb-btn--signal:hover{background:#0FD3C6}
.mb-btn--ink{background:var(--ink-900);border-color:var(--ink-900);color:#EAF4FA}
.mb-btn--ink:hover{background:var(--ink-700)}
.mb-btn--ghost{background:transparent;box-shadow:none;border-color:var(--ice-300);color:var(--frost-700)}
.mb-btn--ghost:hover{transform:none;border-color:var(--cyan-read);color:var(--cyan-read)}

.mb-label{display:inline-flex;align-items:center;gap:6px;padding:3px 8px;border:1px solid var(--ice-300);background:var(--ice-100);color:var(--frost-700);font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;line-height:1.7;text-transform:uppercase;white-space:nowrap}
.mb-label--cyan{border-color:rgba(14,143,134,.55);background:rgba(22,224,210,.12);color:var(--cyan-read)}
.mb-label--amber{border-color:rgba(180,84,27,.45);background:#FFF1E7;color:var(--amber-deep)}
.mb-label--ink{border-color:#2C4059;background:var(--ink-700);color:var(--cyan)}
.mb-label--ghost{background:transparent}
.mb-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.mb-chip{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;padding:4px 10px;border:1px solid rgba(169,196,214,.35);background:rgba(22,224,210,.05);color:#C9DCE8}

/* ---------- 7. 卡片 / 面板 / 数据 ---------- */
.mb-card{position:relative;display:flex;flex-direction:column;gap:12px;padding:22px;background:var(--paper);border:var(--line-ice);box-shadow:var(--shadow-paper);transition:transform .18s ease,box-shadow .18s ease}
.mb-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-paper-hover)}
.mb-card__head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.mb-card__title{font-family:var(--font-head);font-size:20px;font-weight:700;line-height:1.3;color:var(--ink-900)}
.mb-card__title a{color:inherit;text-decoration:none}
.mb-card__meta{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--frost-700)}
.mb-card__text{font-size:15.5px;line-height:1.8;color:var(--ink-700)}
.mb-card__foot{margin-top:auto;display:flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--cyan-read)}
.mb-card--ink{background:var(--ink-700);border-color:#2C4059;box-shadow:4px 4px 0 rgba(11,18,32,.4);color:#C9DCE8}
.mb-card--ink .mb-card__title{color:#F1F8FC}
.mb-card--ink .mb-card__text{color:#B9CBDC}
.mb-card--ink .mb-card__meta{color:#8FA6BC}
.mb-card--plain{box-shadow:none}
.mb-card__stamp{position:absolute;top:14px;right:14px;padding:2px 6px;border:1px solid var(--ice-300);background:var(--ice-050);font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--frost-700)}
.mb-stamp{display:inline-grid;place-items:center;width:44px;height:44px;border:1px solid var(--ice-300);background:var(--paper);font-family:var(--font-mono);font-size:13px;color:var(--frost-700)}

.mb-panel{background:var(--ink-900);border:1px solid #22354C;color:#C9DCE8;padding:clamp(20px,3vw,36px)}
.mb-panel--ice{background:var(--ice-100);border-color:var(--ice-300);color:var(--ink-700)}
.mb-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:#22354C;border:1px solid #22354C}
.mb-metric{background:var(--ink-900);padding:18px 16px}
.mb-metric__value{font-family:var(--font-mono);font-size:clamp(24px,3.2vw,38px);line-height:1;color:var(--cyan);font-variant-numeric:tabular-nums}
.mb-metric__unit{font-size:13px;color:#8FA6BC;margin-left:4px}
.mb-metric__label{margin-top:10px;font-size:12.5px;letter-spacing:.06em;color:#8FA6BC}
.mb-metric--amber .mb-metric__value{color:var(--amber)}

/* ---------- 8. 时间轴 ---------- */
.mb-timeline{position:relative;margin:0;padding:0;list-style:none}
.mb-timeline__item{position:relative;padding:0 0 24px 34px}
.mb-timeline__item::before{content:"";position:absolute;left:5px;top:8px;width:11px;height:11px;background:var(--ice-050);border:1px solid var(--ice-300);transform:rotate(45deg);transition:background .2s ease,border-color .2s ease}
.mb-timeline__item::after{content:"";position:absolute;left:10px;top:24px;bottom:0;width:1px;background:var(--ice-300)}
.mb-timeline__item:last-child{padding-bottom:0}
.mb-timeline__item:last-child::after{display:none}
.mb-timeline__time{display:block;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--frost-700)}
.mb-timeline__title{display:block;font-family:var(--font-head);font-size:17px;font-weight:700;color:var(--ink-900);margin-top:2px}
.mb-timeline__text{font-size:15px;line-height:1.8;color:var(--ink-700);margin-top:4px}
.mb-timeline__item[data-active]::before{background:var(--cyan);border-color:var(--cyan);animation:mb-breathe 2.4s ease-in-out infinite}
.mb-timeline__item[data-active] .mb-timeline__title{color:var(--cyan-read)}
.mb-section--ink .mb-timeline__item::before{background:var(--ink-900);border-color:#3A5471}
.mb-section--ink .mb-timeline__item::after{background:#2C4059}
.mb-section--ink .mb-timeline__title{color:#F1F8FC}
.mb-section--ink .mb-timeline__text{color:#B9CBDC}
.mb-section--ink .mb-timeline__time{color:#8FA6BC}
@keyframes mb-breathe{
  0%,100%{box-shadow:0 0 0 3px rgba(22,224,210,.22)}
  50%{box-shadow:0 0 0 8px rgba(22,224,210,.04)}
}

/* ---------- 9. 图片容器 ---------- */
.mb-figure{margin:0}
.mb-figure__frame{position:relative;overflow:hidden;border:var(--line-ice);box-shadow:var(--shadow-paper);background:linear-gradient(160deg,#DCE9F2 0%,#EAF2F8 44%,#CFE0EC 100%)}
.mb-figure__frame::after{content:"";position:absolute;inset:0;pointer-events:none;background:
  repeating-linear-gradient(102deg,rgba(255,255,255,.55) 0 2px,transparent 2px 26px),
  radial-gradient(120% 70% at 78% 12%,rgba(22,224,210,.26),transparent 62%)}
.mb-figure__frame img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.mb-figure__cap{margin-top:10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--frost-700)}
.mb-figure--tall .mb-figure__frame{aspect-ratio:12/14}
.mb-figure--wide .mb-figure__frame{aspect-ratio:16/9}
.mb-figure--pan .mb-figure__frame{aspect-ratio:2/1}
.mb-figure--square .mb-figure__frame{aspect-ratio:1/1}
.mb-figure--portrait .mb-figure__frame{aspect-ratio:4/3}

/* ---------- 10. 面包屑 / 标签条 / 表格 / 注释 ---------- */
.mb-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;list-style:none;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--frost-700)}
.mb-breadcrumb li{display:flex;align-items:center;gap:8px}
.mb-breadcrumb li+li::before{content:"/";color:var(--ice-300)}
.mb-breadcrumb a{color:var(--frost-700);text-decoration:none;border-bottom:1px solid var(--ice-300)}
.mb-breadcrumb a:hover{color:var(--cyan-read);border-bottom-color:var(--cyan-read)}

.mb-tagbar{display:flex;gap:8px;overflow-x:auto;margin:0;padding:2px 2px 12px;list-style:none;-webkit-overflow-scrolling:touch}
.mb-tagbar__btn{flex:0 0 auto;padding:8px 14px;border:1px solid var(--ice-300);background:var(--paper);color:var(--frost-700);font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease}
.mb-tagbar__btn:hover{border-color:var(--cyan-read);color:var(--cyan-read)}
.mb-tagbar__btn[aria-pressed="true"]{background:var(--ink-900);border-color:var(--ink-900);color:var(--cyan)}

.mb-table-wrap{overflow-x:auto;border:var(--line-ice);background:var(--paper)}
.mb-table{width:100%;border-collapse:collapse;font-size:15px}
.mb-table th{background:var(--ink-700);color:#DBEAF4;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;text-align:left;padding:12px 14px;border-right:1px solid #2C4059;white-space:nowrap}
.mb-table td{padding:12px 14px;border-top:1px solid var(--ice-300);border-right:1px solid var(--ice-100);vertical-align:top;line-height:1.75}
.mb-table tbody tr:nth-child(even){background:var(--ice-100)}
.mb-table tbody tr:hover{background:rgba(22,224,210,.1)}
.mb-table td.mb-num{font-size:14.5px}
.mb-note{border-left:2px solid var(--cyan-read);background:var(--ice-100);padding:14px 18px;font-size:14.5px;line-height:1.8;color:var(--frost-700)}
.mb-note strong{color:var(--ink-900)}
.mb-section--ink .mb-note{background:rgba(22,224,210,.08);border-left-color:var(--cyan);color:#B9CBDC}

/* ---------- 11. 显现 / 进度 / 返回 ---------- */
.mb-js [data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .62s ease,transform .62s cubic-bezier(.22,.68,.24,1)}
.mb-js [data-reveal].is-in{opacity:1;transform:none}
.mb-progress{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--cyan),var(--amber));z-index:100;pointer-events:none}
.mb-totop{position:fixed;right:16px;bottom:16px;z-index:90;display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border:1px solid var(--cyan);background:var(--ink-900);color:var(--cyan);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s ease,transform .2s ease,visibility .2s ease}
.mb-totop.is-on{opacity:1;visibility:visible;transform:none}

/* ---------- 12. 页脚 ---------- */
.mb-footer{position:relative;background:var(--ink-900);color:#B9CBDC;border-top:1px solid rgba(22,224,210,.3)}
.mb-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:3px;background:repeating-linear-gradient(90deg,var(--cyan) 0 22px,transparent 22px 44px);opacity:.6}
.mb-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1.4fr;gap:clamp(24px,3.4vw,52px);padding:clamp(38px,5vw,68px) 0 clamp(24px,3vw,36px)}
.mb-footer__col{min-width:0;display:flex;flex-direction:column;gap:14px}
.mb-footer__title{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);font-weight:400}
.mb-footer__lede{font-size:14.5px;line-height:1.8;color:#B9CBDC;max-width:34ch}
.mb-footer__list{display:flex;flex-direction:column;gap:9px;margin:0;padding:0;list-style:none}
.mb-footer__link{width:fit-content;color:#C9DCE8;text-decoration:none;font-size:14.5px;border-bottom:1px solid transparent;transition:color .16s ease,border-color .16s ease}
.mb-footer__link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.mb-contact{gap:12px}
.mb-contact li{display:flex;flex-direction:column;gap:2px}
.mb-contact__key{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:#7E96AC}
.mb-contact__val{font-size:14.5px;color:#E4EEF6;word-break:break-word}
.mb-footer__note{font-size:12.5px;line-height:1.75;color:#8FA6BC;border-left:2px solid rgba(22,224,210,.5);padding-left:12px}
.mb-footer__bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 26px;padding:16px 0 26px;border-top:1px solid rgba(169,196,214,.18);font-size:12.5px;color:#8FA6BC}
.mb-footer__copy{margin:0}
.mb-footer__legal{display:flex;flex-wrap:wrap;gap:8px 20px;margin:0;padding:0;list-style:none}
.mb-footer__legal .mb-footer__link{font-size:12.5px}
.mb-footer__icp{margin:0;letter-spacing:.05em}
.mb-brand--footer .mb-brand__name{color:#F1F8FC}

/* ---------- 13. 响应式 ---------- */
@media (min-width:900px){
  .mb-main{margin-left:var(--rail-w)}
  .mb-header:hover .mb-rail,.mb-header:focus-within .mb-rail{width:var(--rail-open)}
  .mb-header:hover .mb-rail .mb-brand__text,
  .mb-header:focus-within .mb-rail .mb-brand__text{opacity:1;transform:none}
  .mb-header:hover .mb-rail__version-min,
  .mb-header:focus-within .mb-rail__version-min{display:none}
  .mb-header:hover .mb-rail__version-full,
  .mb-header:focus-within .mb-rail__version-full{display:inline}
}

@media (max-width:1023px){
  .mb-grid--7-5,.mb-grid--5-7,.mb-grid--8-4,.mb-grid--4-8,.mb-page-head__grid{grid-template-columns:1fr}
  .mb-grid--3,.mb-grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mb-footer__grid{grid-template-columns:1fr 1fr}
}

@media (max-width:899px){
  .mb-header{position:fixed;top:0;left:0;right:0;bottom:auto;width:auto;height:var(--topbar-h);z-index:80}
  .mb-main{padding-top:var(--topbar-h)}
  .mb-topbar{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:12px;height:var(--topbar-h);padding:0 14px;background:var(--ink-900);border-bottom:1px solid rgba(22,224,210,.35)}
  .mb-topbar .mb-brand__mark{width:34px;height:34px;font-size:12px}
  .mb-topbar .mb-brand__name{font-size:15.5px}
  .mb-topbar .mb-brand__sub{font-size:10px;letter-spacing:.1em}
  .mb-nav-toggle{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid rgba(22,224,210,.55);color:var(--cyan);cursor:pointer}
  .mb-header[data-open] .mb-nav-toggle{background:rgba(22,224,210,.16)}
  .mb-header::after{content:"";position:fixed;inset:0;background:rgba(11,18,32,.64);opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease}
  .mb-header[data-open]::after{opacity:1;visibility:visible}
  .mb-rail{position:fixed;top:0;left:0;bottom:0;width:min(320px,86vw);z-index:1;overflow-y:auto;overflow-x:hidden;transform:translateX(-101%);transition:transform .28s cubic-bezier(.22,.68,.24,1);box-shadow:16px 0 44px rgba(11,18,32,.5)}
  .mb-header[data-open] .mb-rail{transform:none}
  .mb-rail__brand{padding:18px 16px}
  .mb-rail .mb-brand__text{opacity:1;transform:none}
  .mb-rail__version-min{display:none}
  .mb-rail__version-full{display:inline}
  .mb-nav__link{height:52px;font-size:15.5px}
  .mb-rail__status{font-size:12px}
  .mb-totop{right:12px;bottom:12px}
}

@media (max-width:640px){
  :root{--shell-pad:18px}
  .mb-grid--3,.mb-grid--4,.mb-grid--2{grid-template-columns:1fr}
  .mb-footer__grid{grid-template-columns:1fr;gap:30px}
  .mb-footer__bar{flex-direction:column;align-items:flex-start}
  .mb-card{padding:18px}
}

/* ---------- 14. reduced motion ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .mb-js [data-reveal]{opacity:1;transform:none}
  .mb-pulse{animation:none;box-shadow:0 0 0 4px rgba(22,224,210,.2)}
}