/* roulang page: index */
:root{
  --mk-primary:#1D5BD6;
  --mk-primary-deep:#10367F;
  --mk-primary-soft:#EAF0FF;
  --mk-accent:#FF7A45;
  --mk-accent-soft:#FFF1EA;
  --mk-ink:#0E1B33;
  --mk-text:#33415C;
  --mk-muted:#6B7A99;
  --mk-bg:#F7F9FC;
  --mk-surface:#FFFFFF;
  --mk-border:#E4E9F2;
  --mk-radius-card:16px;
  --mk-radius-btn:10px;
  --mk-radius-img:14px;
  --mk-radius-badge:6px;
  --shadow-rest:0 1px 2px rgba(14,27,51,.06);
  --shadow-card:0 10px 28px -14px rgba(16,54,127,.18);
  --shadow-hover:0 16px 36px -16px rgba(16,54,127,.26);
  --mk-container:1200px;
  --mk-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mk-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--mk-font);font-size:16px;line-height:1.8;
  color:var(--mk-text);background:var(--mk-bg);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
body.mk-noscroll{overflow:hidden;}
h1,h2,h3,h4{margin:0;color:var(--mk-ink);font-weight:700;letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--mk-primary);text-decoration:none;transition:color .2s ease;}
img{max-width:100%;height:auto;display:block;}
figure{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;padding:0;color:inherit;}
input,textarea,select{font-family:inherit;font-size:15px;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(29,91,214,.32);outline-offset:2px;border-radius:6px;}
::selection{background:var(--mk-primary-soft);color:var(--mk-primary-deep);}

/* container */
.mk-container{max-width:var(--mk-container);margin:0 auto;padding:0 24px;}

/* buttons */
.mk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--mk-radius-btn);font-size:15px;font-weight:600;
  padding:0 22px;height:46px;line-height:1;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .22s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.mk-btn--primary{background:var(--mk-accent);color:#fff;box-shadow:0 8px 20px -12px rgba(255,122,69,.9);}
.mk-btn--primary:hover{background:#F26A33;color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(255,122,69,.95);}
.mk-btn--ghost{background:#fff;color:var(--mk-primary);border-color:var(--mk-primary);}
.mk-btn--ghost:hover{background:var(--mk-primary-soft);color:var(--mk-primary-deep);transform:translateY(-1px);}
.mk-btn--sm{height:40px;font-size:14px;padding:0 18px;}
.mk-btn--lg{height:56px;font-size:16px;padding:0 32px;border-radius:12px;}
.mk-textlink{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--mk-primary);position:relative;}
.mk-textlink::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .24s ease;}
.mk-textlink:hover::after{transform:scaleX(1);}
.mk-textlink:hover{color:var(--mk-primary-deep);}

/* badge & chip */
.mk-badge{display:inline-flex;align-items:center;gap:6px;background:var(--mk-primary-soft);color:var(--mk-primary-deep);
  border-radius:var(--mk-radius-badge);padding:4px 10px;font-size:12.5px;font-weight:600;}
.mk-chip{display:inline-block;background:var(--mk-primary-soft);color:var(--mk-primary-deep);
  border-radius:var(--mk-radius-badge);padding:4px 10px;font-size:12.5px;font-weight:500;}
.mk-eyebrow{display:inline-block;color:var(--mk-primary);font-size:13.5px;font-weight:600;letter-spacing:.02em;margin-bottom:12px;}

/* header */
.mk-header{position:sticky;top:0;z-index:120;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);-webkit-backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--mk-border);transition:box-shadow .25s ease,background-color .25s ease;}
.mk-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(16,54,127,.55);}
.mk-header__inner{max-width:var(--mk-container);margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:20px;}
.mk-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.mk-logo__mark{width:30px;height:30px;border-radius:9px;background:var(--mk-primary);display:grid;
  grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,1fr);gap:3px;padding:6px;flex:0 0 30px;}
.mk-logo__mark i{display:block;background:#fff;border-radius:2px;}
.mk-logo__mark i:nth-child(2),.mk-logo__mark i:nth-child(3){opacity:.55;}
.mk-logo__text{font-size:18px;font-weight:700;color:var(--mk-ink);letter-spacing:-.01em;}
.mk-nav{display:flex;align-items:center;gap:2px;margin-left:10px;}
.mk-nav__link{position:relative;padding:9px 12px;font-size:15px;color:var(--mk-text);border-radius:8px;
  transition:color .2s ease,background-color .2s ease;}
.mk-nav__link::after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--mk-primary);border-radius:2px;transform:scaleX(0);transition:transform .24s ease;}
.mk-nav__link:hover{color:var(--mk-primary);background:var(--mk-primary-soft);}
.mk-nav__link.is-active{color:var(--mk-primary);font-weight:600;}
.mk-nav__link.is-active::after{transform:scaleX(1);}
.mk-tools{margin-left:auto;display:flex;align-items:center;gap:12px;}
.mk-search{position:relative;display:flex;align-items:center;width:270px;height:38px;
  border:1px solid var(--mk-border);border-radius:999px;background:#fff;padding:0 14px;
  transition:border-color .2s ease,box-shadow .2s ease;}
.mk-search:focus-within{border-color:var(--mk-primary);box-shadow:0 0 0 3px rgba(29,91,214,.16);}
.mk-search__icon{color:var(--mk-muted);font-size:13px;margin-right:8px;line-height:1;}
.mk-search input{border:0;outline:none;background:transparent;width:100%;font-size:14px;color:var(--mk-text);}
.mk-search input::placeholder{color:var(--mk-muted);}
.mk-iconbtn{width:38px;height:38px;border-radius:10px;border:1px solid var(--mk-border);background:#fff;
  color:var(--mk-primary);display:grid;place-items:center;font-size:16px;font-weight:600;
  transition:background-color .2s ease,border-color .2s ease,transform .18s ease;}
.mk-iconbtn:hover{background:var(--mk-primary-soft);border-color:var(--mk-primary);transform:translateY(-1px);}
.mk-burger{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--mk-border);
  background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:5px;}
.mk-burger span{display:block;width:18px;height:2px;background:var(--mk-ink);border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.mk-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.mk-burger.is-open span:nth-child(2){opacity:0;}
.mk-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* mobile panel */
.mk-mobile{display:none;}
.mk-mobile__search{display:flex;align-items:center;height:46px;border:1px solid var(--mk-border);
  border-radius:999px;padding:0 16px;background:#fff;margin-bottom:16px;}
.mk-mobile__search input{border:0;outline:none;width:100%;font-size:15px;background:transparent;}
.mk-mobile__link{display:flex;align-items:center;justify-content:space-between;min-height:52px;
  padding:0 4px;font-size:16px;color:var(--mk-ink);border-bottom:1px solid var(--mk-border);}
.mk-mobile__link.is-active{color:var(--mk-primary);font-weight:600;}
.mk-mobile__cta{margin-top:20px;width:100%;}

/* hero */
.mk-hero{position:relative;overflow:hidden;background:var(--mk-surface);padding:72px 0 0;}
.mk-hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(29,91,214,.05) 1px,transparent 1px);background-size:22px 22px;}
.mk-hero__grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr 1fr;gap:56px;align-items:center;}
.mk-hero__copy h1{font-size:clamp(32px,4.2vw,50px);line-height:1.22;margin:18px 0 16px;}
.mk-hero__sub{font-size:19px;color:var(--mk-text);line-height:1.7;max-width:30em;}
.mk-hero__actions{display:flex;align-items:center;gap:20px;margin:30px 0 18px;flex-wrap:wrap;}
.mk-hero__note{font-size:13.5px;color:var(--mk-muted);}
.mk-hero__visual{position:relative;}
.mk-hero__frame{border-radius:18px;overflow:hidden;border:1px solid var(--mk-border);
  box-shadow:var(--shadow-card);aspect-ratio:16/11;background:var(--mk-primary-soft);}
.mk-hero__frame img{width:100%;height:100%;object-fit:cover;}
.mk-version-chip{position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.94);
  color:var(--mk-primary-deep);font-size:13px;font-weight:600;border-radius:999px;
  padding:6px 14px;box-shadow:var(--shadow-rest);font-family:var(--mk-mono);}

/* trust bar */
.mk-trustbar{position:relative;z-index:1;margin-top:60px;padding:18px 0 24px;border-top:1px solid var(--mk-border);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13.5px;color:var(--mk-muted);}
.mk-trustbar i{display:inline-block;width:1px;height:13px;background:var(--mk-border);}
.mk-trustbar strong{color:var(--mk-ink);font-weight:600;font-family:var(--mk-mono);}

/* sections */
.mk-section{padding:96px 0;}
.mk-section--alt{background:var(--mk-surface);}
.mk-section--soft{background:var(--mk-primary-soft);}
.mk-sechead{max-width:720px;margin-bottom:48px;}
.mk-sechead h2{font-size:clamp(26px,3vw,34px);margin-bottom:14px;}
.mk-sechead p{font-size:16px;color:var(--mk-muted);}

/* value split */
.mk-split{display:grid;grid-template-columns:340px 1fr;gap:64px;align-items:start;}
.mk-split__side{position:sticky;top:104px;}
.mk-split__side h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:16px;}
.mk-split__side p{font-size:15.5px;color:var(--mk-muted);margin-bottom:20px;}
.mk-numlist{border-top:1px solid var(--mk-border);}
.mk-numlist li{display:flex;gap:26px;padding:28px 0;border-bottom:1px solid var(--mk-border);}
.mk-numlist__no{font-family:var(--mk-mono);font-size:26px;font-weight:700;color:var(--mk-primary-soft);
  line-height:1.1;flex:0 0 56px;-webkit-text-stroke:1px rgba(29,91,214,.55);}
.mk-numlist h3{font-size:19px;margin-bottom:8px;}
.mk-numlist p{font-size:15px;color:var(--mk-muted);line-height:1.8;}

/* carousel */
.mk-carousel{position:relative;}
.mk-carousel__viewport{overflow:hidden;border-radius:20px;border:1px solid var(--mk-border);
  box-shadow:var(--shadow-card);background:var(--mk-surface);}
.mk-carousel__track{display:flex;transition:transform .5s cubic-bezier(.4,.2,.2,1);}
.mk-slide{flex:0 0 100%;display:grid;grid-template-columns:1fr 1.05fr;gap:44px;align-items:center;padding:44px;background:var(--mk-surface);}
.mk-slide--rev .mk-slide__text{order:2;}
.mk-slide--rev .mk-slide__media{order:1;}
.mk-slide__text h3{font-size:24px;margin-bottom:12px;}
.mk-slide__text p{font-size:15.5px;color:var(--mk-muted);line-height:1.85;}
.mk-slide__tag{margin-bottom:14px;display:inline-block;}
.mk-slide__media{border-radius:var(--mk-radius-img);overflow:hidden;aspect-ratio:16/10;background:var(--mk-primary-soft);}
.mk-slide__media img{width:100%;height:100%;object-fit:cover;}
.mk-arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--mk-border);box-shadow:var(--shadow-rest);display:grid;place-items:center;
  color:var(--mk-primary);font-size:18px;z-index:5;transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease;}
.mk-arrow:hover{background:var(--mk-primary-soft);box-shadow:var(--shadow-card);}
.mk-arrow--prev{left:-20px;}
.mk-arrow--next{right:-20px;}
.mk-carousel__foot{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:24px;flex-wrap:wrap;}
.mk-thumbs{display:flex;gap:10px;flex-wrap:wrap;}
.mk-thumb{width:72px;height:48px;border-radius:8px;overflow:hidden;border:2px solid transparent;
  background:var(--mk-primary-soft);transition:border-color .2s ease,transform .2s ease;}
.mk-thumb img{width:100%;height:100%;object-fit:cover;}
.mk-thumb:hover{transform:translateY(-2px);}
.mk-thumb.is-active{border-color:var(--mk-primary);}
.mk-dots{display:flex;gap:8px;align-items:center;}
.mk-dot{width:8px;height:8px;border-radius:50%;background:#C9D4E8;transition:width .2s ease,background-color .2s ease;}
.mk-dot.is-active{width:22px;border-radius:999px;background:var(--mk-primary);}

/* specs */
.mk-speclist{border-top:1px solid var(--mk-border);max-width:900px;}
.mk-speclist__row{display:grid;grid-template-columns:190px 1fr;gap:26px;padding:20px 0;
  border-bottom:1px solid var(--mk-border);align-items:baseline;}
.mk-speclist__key{color:var(--mk-muted);font-size:15px;}
.mk-speclist__val{color:var(--mk-ink);font-size:15.5px;font-weight:500;}
.mk-speclist__val code{font-family:var(--mk-mono);background:var(--mk-primary-soft);color:var(--mk-primary-deep);
  border-radius:6px;padding:2px 7px;font-size:13.5px;}

/* reviews */
.mk-reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:start;}
.mk-reviews__col{display:flex;flex-direction:column;gap:26px;}
.mk-reviews__col:nth-child(2){margin-top:34px;}
.mk-reviews__col:nth-child(3){margin-top:66px;}
.mk-review{background:var(--mk-surface);border:1px solid var(--mk-border);border-radius:var(--mk-radius-card);
  padding:26px;box-shadow:var(--shadow-rest);transition:transform .22s ease,box-shadow .22s ease;}
.mk-review:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);}
.mk-review__head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.mk-avatar{width:40px;height:40px;border-radius:50%;background:var(--mk-primary-soft);color:var(--mk-primary-deep);
  display:grid;place-items:center;font-weight:600;font-size:15px;flex:0 0 40px;}
.mk-review__name{font-size:15px;font-weight:600;color:var(--mk-ink);line-height:1.4;}
.mk-review__role{font-size:12.5px;color:var(--mk-muted);line-height:1.4;}
.mk-stars{color:var(--mk-accent);font-size:13px;letter-spacing:2px;margin-bottom:10px;}
.mk-review p{font-size:15px;color:var(--mk-text);line-height:1.8;}

/* download */
.mk-download{background:var(--mk-surface);border:1px solid var(--mk-border);border-radius:20px;
  padding:44px;box-shadow:var(--shadow-card);}
.mk-download__main{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-bottom:28px;}
.mk-dl-primary{display:inline-flex;align-items:center;gap:14px;background:var(--mk-accent);color:#fff;
  border-radius:12px;padding:14px 30px;min-height:60px;box-shadow:0 14px 28px -16px rgba(255,122,69,.95);
  transition:transform .18s ease,background-color .2s ease;}
.mk-dl-primary:hover{background:#F26A33;color:#fff;transform:translateY(-1px);}
.mk-dl-primary__icon{width:30px;height:30px;border-radius:8px;background:rgba(255,255,255,.22);
  display:grid;place-items:center;font-size:15px;font-weight:700;}
.mk-dl-primary__text strong{display:block;font-size:16px;line-height:1.3;}
.mk-dl-primary__text span{display:block;font-size:12.5px;opacity:.9;font-family:var(--mk-mono);}
.mk-dl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.mk-dl-item{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--mk-border);
  border-radius:12px;padding:12px 16px;min-height:60px;transition:border-color .2s ease,background-color .2s ease,transform .18s ease;}
.mk-dl-item:hover{border-color:var(--mk-primary);background:var(--mk-primary-soft);transform:translateY(-1px);}
.mk-dl-item__icon{width:30px;height:30px;border-radius:8px;background:var(--mk-primary-soft);color:var(--mk-primary);
  display:grid;place-items:center;font-size:13px;font-weight:700;flex:0 0 30px;}
.mk-dl-item__text strong{display:block;font-size:14.5px;color:var(--mk-ink);line-height:1.35;}
.mk-dl-item__text span{display:block;font-size:12.5px;color:var(--mk-muted);font-family:var(--mk-mono);line-height:1.4;}
.mk-download__note{margin-top:24px;padding-top:20px;border-top:1px solid var(--mk-border);font-size:13.5px;
  color:var(--mk-muted);display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.mk-download__note code{font-family:var(--mk-mono);color:var(--mk-primary-deep);background:var(--mk-primary-soft);
  border-radius:6px;padding:2px 8px;font-size:13px;}

/* news */
.mk-newsgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.mk-newscard{background:var(--mk-surface);border:1px solid var(--mk-border);border-radius:var(--mk-radius-card);
  overflow:hidden;box-shadow:var(--shadow-rest);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;}
.mk-newscard:hover{transform:translateY(-3px);box-shadow:var(--shadow-card);}
.mk-newscard__thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--mk-primary-soft);position:relative;}
.mk-newscard__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.mk-newscard:hover .mk-newscard__thumb img{transform:scale(1.04);}
.mk-newscard__thumb .mk-chip{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);}
.mk-newscard__body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.mk-newscard h3{font-size:17px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mk-newscard h3 a{color:var(--mk-ink);}
.mk-newscard h3 a:hover{color:var(--mk-primary);}
.mk-newscard__sum{font-size:14.5px;color:var(--mk-muted);line-height:1.8;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mk-newscard__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:12.5px;color:var(--mk-muted);font-family:var(--mk-mono);}
.mk-newscard__foot .mk-textlink{font-family:var(--mk-font);font-size:13.5px;}

/* empty */
.mk-empty{background:var(--mk-primary-soft);border-radius:var(--mk-radius-card);padding:56px 24px;text-align:center;}
.mk-empty__icon{width:64px;height:64px;border-radius:18px;background:#fff;color:var(--mk-primary);
  display:grid;place-items:center;margin:0 auto 18px;font-size:26px;font-weight:700;}
.mk-empty h3{font-size:18px;margin-bottom:8px;}
.mk-empty p{font-size:14.5px;color:var(--mk-muted);margin-bottom:20px;}

/* faq */
.mk-faq{max-width:900px;}
.mk-faq__item{background:var(--mk-surface);border:1px solid var(--mk-border);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.mk-faq__item.is-open{border-color:rgba(29,91,214,.4);box-shadow:var(--shadow-card);}
.mk-faq__q{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;
  text-align:left;padding:19px 24px;font-size:17px;font-weight:600;color:var(--mk-ink);}
.mk-faq__sign{position:relative;width:16px;height:16px;flex:0 0 16px;}
.mk-faq__sign::before,.mk-faq__sign::after{content:"";position:absolute;background:var(--mk-primary);border-radius:2px;transition:transform .2s ease;}
.mk-faq__sign::before{left:0;top:7px;width:16px;height:2px;}
.mk-faq__sign::after{left:7px;top:0;width:2px;height:16px;}
.mk-faq__item.is-open .mk-faq__sign::after{transform:scaleY(0);}
.mk-faq__a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.mk-faq__a p{padding:0 24px 20px;font-size:15px;color:var(--mk-muted);line-height:1.85;}

/* cta strip */
.mk-cta{background:var(--mk-primary-soft);padding:76px 0;}
.mk-cta__inner{text-align:center;max-width:720px;margin:0 auto;}
.mk-cta h2{font-size:clamp(26px,3vw,34px);margin-bottom:14px;}
.mk-cta p{font-size:16px;color:var(--mk-text);margin-bottom:28px;}
.mk-cta__btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}

/* footer */
.mk-footer{background:var(--mk-primary-deep);color:#C7D3EA;padding:72px 0 0;}
.mk-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;}
.mk-footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.mk-footer__brand .mk-logo__mark{background:#fff;}
.mk-footer__brand .mk-logo__mark i{background:var(--mk-primary-deep);}
.mk-footer__brand .mk-logo__text{color:#fff;}
.mk-footer p{font-size:14px;line-height:1.9;color:#AFBFDC;}
.mk-footer h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:18px;}
.mk-footer__links li{margin-bottom:12px;}
.mk-footer__links a{font-size:14px;color:#AFBFDC;}
.mk-footer__links a:hover{color:var(--mk-accent);text-decoration:underline;text-underline-offset:3px;}
.mk-footer__socials{display:flex;gap:10px;margin-top:20px;}
.mk-footer__socials span{width:34px;height:34px;border-radius:9px;background:rgba(255,255,255,.1);
  display:grid;place-items:center;font-size:13px;color:#DCE6F7;}
.mk-footer__bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.14);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8DA0C4;}
.mk-footer__bottom a{color:#8DA0C4;}
.mk-footer__bottom a:hover{color:var(--mk-accent);}

/* responsive */
@media (max-width:1279px){
  .mk-search{width:220px;}
  .mk-split{grid-template-columns:300px 1fr;gap:48px;}
  .mk-dl-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  .mk-nav{display:none;}
  .mk-search{display:none;}
  .mk-burger{display:flex;}
  .mk-header__inner{gap:12px;}
  .mk-mobile{display:block;position:fixed;top:68px;left:0;right:0;bottom:0;background:#fff;
    padding:22px 24px 40px;overflow-y:auto;z-index:110;transform:translateX(102%);
    transition:transform .3s cubic-bezier(.4,.2,.2,1);box-shadow:-12px 0 32px -22px rgba(16,54,127,.6);}
  .mk-mobile.is-open{transform:translateX(0);}
  .mk-hero{padding-top:52px;}
  .mk-hero__grid{grid-template-columns:1fr;gap:36px;}
  .mk-hero__visual{order:2;}
  .mk-section{padding:72px 0;}
  .mk-split{grid-template-columns:1fr;gap:32px;}
  .mk-split__side{position:static;}
  .mk-slide{grid-template-columns:1fr;gap:26px;padding:30px;}
  .mk-slide--rev .mk-slide__text{order:1;}
  .mk-slide--rev .mk-slide__media{order:2;}
  .mk-arrow--prev{left:8px;}
  .mk-arrow--next{right:8px;}
  .mk-reviews{grid-template-columns:repeat(2,1fr);}
  .mk-reviews__col:nth-child(2){margin-top:32px;}
  .mk-reviews__col:nth-child(3){margin-top:0;}
  .mk-newsgrid{grid-template-columns:repeat(2,1fr);}
  .mk-dl-grid{grid-template-columns:repeat(2,1fr);}
  .mk-footer__grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  .mk-container{padding:0 16px;}
  .mk-header__inner{padding:0 16px;height:64px;}
  .mk-mobile{top:64px;padding:18px 16px 36px;}
  .mk-hero{padding-top:40px;}
  .mk-hero__copy h1{font-size:29px;}
  .mk-hero__sub{font-size:16.5px;}
  .mk-hero__actions{gap:14px;}
  .mk-btn--lg{width:100%;}
  .mk-hero__actions .mk-textlink{width:100%;}
  .mk-trustbar{gap:10px;font-size:12.5px;}
  .mk-trustbar i{display:none;}
  .mk-trustbar span{width:100%;}
  .mk-section{padding:56px 0;}
  .mk-numlist li{gap:16px;padding:22px 0;}
  .mk-numlist__no{font-size:22px;flex:0 0 40px;}
  .mk-speclist__row{grid-template-columns:1fr;gap:6px;padding:16px 0;}
  .mk-reviews{grid-template-columns:1fr;}
  .mk-reviews__col{margin-top:0 !important;}
  .mk-newsgrid{grid-template-columns:1fr;}
  .mk-download{padding:26px 20px;}
  .mk-dl-grid{grid-template-columns:1fr;}
  .mk-dl-primary{width:100%;}
  .mk-carousel__foot{flex-direction:column;align-items:flex-start;}
  .mk-arrow{width:38px;height:38px;}
  .mk-footer{padding-top:52px;}
  .mk-footer__grid{grid-template-columns:1fr;gap:32px;}
  .mk-footer__bottom{font-size:12.5px;}
}
@media (max-width:479px){
  .mk-logo__text{font-size:16px;}
  .mk-hero__copy h1{font-size:26px;}
  .mk-sechead h2,.mk-cta h2{font-size:23px;}
  .mk-faq__q{font-size:15.5px;padding:16px 18px;}
  .mk-faq__a p{padding:0 18px 18px;}
  .mk-review{padding:20px;}
  .mk-slide{padding:22px;}
  .mk-thumb{width:60px;height:40px;}
}

/* roulang page: article */
:root{
  --mk-primary:#1D5BD6;
  --mk-primary-deep:#10367F;
  --mk-primary-soft:#EAF0FF;
  --mk-accent:#FF7A45;
  --mk-accent-soft:#FFF1EA;
  --mk-ink:#0E1B33;
  --mk-text:#33415C;
  --mk-muted:#6B7A99;
  --mk-bg:#F7F9FC;
  --mk-surface:#FFFFFF;
  --mk-border:#E4E9F2;
  --mk-radius-card:16px;
  --mk-radius-btn:10px;
  --mk-radius-badge:6px;
  --mk-radius-img:14px;
  --mk-shadow-rest:0 1px 2px rgba(14,27,51,.06);
  --mk-shadow-card:0 10px 28px -14px rgba(16,54,127,.18);
  --mk-shadow-hover:0 16px 36px -16px rgba(16,54,127,.26);
  --mk-container:1200px;
  --mk-reading:780px;
  --mk-section-y:96px;
  --mk-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--mk-font);
  font-size:16px;
  line-height:1.8;
  color:var(--mk-text);
  background:var(--mk-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--mk-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--mk-primary-deep)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--mk-ink);font-weight:700;letter-spacing:-.01em;line-height:1.32}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(29,91,214,.3);outline-offset:2px;border-radius:4px}
.mk-container{width:100%;max-width:var(--mk-container);margin:0 auto;padding:0 24px}
.mk-row{display:flex;flex-wrap:wrap;margin:0 -12px}
.mk-col{padding:0 12px;width:100%}
.row{max-width:none;margin-left:-12px;margin-right:-12px}
.column,.columns{padding-left:12px;padding-right:12px}

/* ---------- Header ---------- */
.mk-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--mk-border);
  transition:box-shadow .2s ease,background-color .2s ease;
}
.mk-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(16,54,127,.45);background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(8px)}
.mk-header__inner{display:flex;align-items:center;gap:24px;height:68px}
.mk-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.mk-logo__mark{display:grid;grid-template-columns:repeat(2,8px);grid-gap:3px;width:19px}
.mk-logo__mark i{display:block;height:8px;border-radius:2px;background:var(--mk-primary)}
.mk-logo__mark i:nth-child(2){background:var(--mk-accent)}
.mk-logo__text{font-size:18px;font-weight:700;color:var(--mk-ink);letter-spacing:-.01em}
.mk-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.mk-nav__link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--mk-text);border-radius:var(--mk-radius-btn);
}
.mk-nav__link:hover{color:var(--mk-primary);background:var(--mk-primary-soft)}
.mk-nav__link.is-active{color:var(--mk-primary);background:var(--mk-primary-soft);font-weight:600}
.mk-nav__link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--mk-primary);
}
.mk-header__right{display:flex;align-items:center;gap:12px;margin-left:auto}
.mk-search{
  position:relative;display:flex;align-items:center;
  width:280px;height:40px;border:1px solid var(--mk-border);border-radius:999px;background:var(--mk-bg);
  transition:border-color .18s ease,background-color .18s ease;
}
.mk-search:focus-within{border-color:var(--mk-primary);background:#fff}
.mk-search i{position:absolute;left:14px;font-size:14px;color:var(--mk-muted)}
.mk-search input{
  width:100%;height:100%;border:0;background:transparent;padding:0 46px 0 36px;
  font-size:14px;color:var(--mk-ink);outline:none;
}
.mk-search input::placeholder{color:var(--mk-muted)}
.mk-search kbd{
  position:absolute;right:12px;font-size:11px;color:var(--mk-muted);
  background:#fff;border:1px solid var(--mk-border);border-radius:4px;padding:1px 5px;font-family:var(--mk-font);
}
.mk-iconbtn{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--mk-radius-btn);
  border:1px solid var(--mk-border);background:#fff;color:var(--mk-text);cursor:pointer;
}
.mk-iconbtn:hover{border-color:var(--mk-primary);color:var(--mk-primary);background:var(--mk-primary-soft)}
.mk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--mk-radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .16s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.mk-btn--primary{background:var(--mk-accent);color:#fff;box-shadow:0 8px 20px -12px rgba(255,122,69,.75)}
.mk-btn--primary:hover{background:#F26A34;color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(255,122,69,.85)}
.mk-btn--ghost{background:#fff;border-color:var(--mk-primary);color:var(--mk-primary)}
.mk-btn--ghost:hover{background:rgba(29,91,214,.06);color:var(--mk-primary-deep)}
.mk-btn--lg{height:52px;padding:0 26px;font-size:16px}
.mk-burger{display:none}
.mk-mobile{
  display:none;position:fixed;inset:68px 0 0 0;z-index:55;background:#fff;border-top:1px solid var(--mk-border);
  padding:20px 24px 32px;overflow-y:auto;
}
.mk-mobile.is-open{display:block}
.mk-mobile .mk-search{width:100%;margin-bottom:16px}
.mk-mobile__links{display:flex;flex-direction:column;margin:12px 0 20px}
.mk-mobile__links a{
  display:flex;align-items:center;justify-content:space-between;min-height:48px;
  font-size:15px;font-weight:500;color:var(--mk-text);border-bottom:1px solid var(--mk-border);
}
.mk-mobile__links a.is-active{color:var(--mk-primary)}
.mk-mobile .mk-btn{width:100%;height:48px}

/* ---------- Breadcrumb & hero ---------- */
.mk-article-hero{background:#fff;border-bottom:1px solid var(--mk-border);padding:28px 0 40px}
.mk-breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--mk-muted);margin-bottom:22px}
.mk-breadcrumb a{color:var(--mk-muted)}
.mk-breadcrumb a:hover{color:var(--mk-primary)}
.mk-breadcrumb span.sep{color:#B9C4DA}
.mk-breadcrumb .current{max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--mk-text)}
.mk-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--mk-primary-soft);color:var(--mk-primary-deep);
  border-radius:var(--mk-radius-badge);padding:4px 10px;font-size:12.5px;font-weight:600;line-height:1.5;
}
.mk-article-hero h1{
  font-size:36px;line-height:1.35;color:var(--mk-ink);margin:16px 0 18px;max-width:900px;
}
.mk-metabar{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:14px;color:var(--mk-muted)}
.mk-metabar .divider{width:1px;height:14px;background:var(--mk-border)}
.mk-metabar i{color:var(--mk-primary);margin-right:6px;font-size:13px}

/* ---------- Article layout ---------- */
.mk-section{padding:var(--mk-section-y) 0}
.mk-section--tight{padding:56px 0}
.mk-article-shell{padding:56px 0 72px}
.mk-aside{position:sticky;top:92px;display:flex;flex-direction:column;gap:16px}

.mk-prose{
  max-width:var(--mk-reading);
  background:var(--mk-surface);
  border:1px solid var(--mk-border);
  border-radius:var(--mk-radius-card);
  box-shadow:var(--mk-shadow-rest);
  padding:36px 40px 40px;
  font-size:17.5px;line-height:1.9;color:var(--mk-text);
}
.mk-prose > * + *{margin-top:20px}
.mk-prose p{margin-bottom:20px}
.mk-prose h2{
  position:relative;font-size:24px;line-height:1.4;margin:40px 0 16px;padding-left:14px;color:var(--mk-ink);
}
.mk-prose h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--mk-primary);
}
.mk-prose h3{font-size:19px;font-weight:600;margin:28px 0 12px;color:var(--mk-ink)}
.mk-prose h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--mk-ink)}
.mk-prose ul,.mk-prose ol{margin:0 0 20px 22px;padding:0}
.mk-prose ul li{list-style:disc;margin:8px 0}
.mk-prose ol li{list-style:decimal;margin:8px 0}
.mk-prose blockquote{
  margin:24px 0;padding:16px 22px;background:var(--mk-primary-soft);
  border-left:4px solid var(--mk-primary);border-radius:0 var(--mk-radius-badge) var(--mk-radius-badge) 0;
  color:var(--mk-primary-deep);font-size:16px;
}
.mk-prose pre{
  background:var(--mk-primary-deep);color:#E6EDFB;border-radius:var(--mk-radius-btn);
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;margin:22px 0;
}
.mk-prose code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:var(--mk-primary-soft);color:var(--mk-primary-deep);
  padding:2px 6px;border-radius:4px;font-size:14.5px;
}
.mk-prose pre code{background:transparent;color:inherit;padding:0}
.mk-prose img{
  max-width:100%;height:auto;border-radius:var(--mk-radius-img);
  margin:26px auto;box-shadow:var(--mk-shadow-card);
}
.mk-prose figure{margin:26px 0}
.mk-prose figcaption{text-align:center;font-size:13px;color:var(--mk-muted);margin-top:10px}
.mk-prose a{color:var(--mk-primary);border-bottom:1px solid rgba(29,91,214,.35)}
.mk-prose a:hover{color:var(--mk-primary-deep);border-bottom-color:var(--mk-primary-deep)}
.mk-prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.mk-prose th,.mk-prose td{border:1px solid var(--mk-border);padding:10px 14px;text-align:left}
.mk-prose th{background:var(--mk-primary-soft);color:var(--mk-primary-deep);font-weight:600}
.mk-prose hr{border:0;border-top:1px solid var(--mk-border);margin:32px 0}

/* ---------- Empty state ---------- */
.mk-empty{
  background:var(--mk-primary-soft);border-radius:var(--mk-radius-card);
  padding:56px 32px;text-align:center;max-width:var(--mk-reading);
}
.mk-empty__icon{
  width:96px;height:96px;margin:0 auto 20px;border-radius:50%;
  background:#fff;display:flex;align-items:center;justify-content:center;
  color:var(--mk-primary);font-size:34px;box-shadow:var(--mk-shadow-rest);
}
.mk-empty h3{font-size:20px;margin-bottom:8px}
.mk-empty p{font-size:15px;color:var(--mk-muted);margin-bottom:20px}

/* ---------- Sidebar cards ---------- */
.mk-card{
  background:var(--mk-surface);border:1px solid var(--mk-border);border-radius:var(--mk-radius-card);
  padding:24px;box-shadow:var(--mk-shadow-rest);
}
.mk-card__title{
  font-size:15px;font-weight:700;color:var(--mk-ink);margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.mk-card__title i{color:var(--mk-primary);font-size:14px}
.mk-sidelist li + li{border-top:1px solid var(--mk-border)}
.mk-sidelist a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14.5px;color:var(--mk-text);
}
.mk-sidelist a:hover{color:var(--mk-primary)}
.mk-sidelist a span{color:var(--mk-muted);font-size:12.5px}
.mk-downloadcard{background:var(--mk-primary-deep);border-color:var(--mk-primary-deep);color:#CBD8F2}
.mk-downloadcard h3{color:#fff;font-size:17px;margin-bottom:8px}
.mk-downloadcard p{font-size:13.5px;color:#A9BBE4;line-height:1.7;margin-bottom:16px}
.mk-downloadcard .mk-btn{width:100%}
.mk-downloadcard__meta{display:flex;gap:14px;font-size:12.5px;color:#8FA5D6;margin-top:14px;flex-wrap:wrap}

/* ---------- Meta footer of article ---------- */
.mk-article-foot{max-width:var(--mk-reading);margin-top:32px}
.mk-tags{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.mk-tags .label{font-size:13px;color:var(--mk-muted);margin-right:4px}
.mk-tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:999px;
  background:#fff;border:1px solid var(--mk-border);font-size:13px;color:var(--mk-text);
}
.mk-tag:hover{border-color:var(--mk-primary);color:var(--mk-primary);background:var(--mk-primary-soft)}
.mk-pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:36px}
.mk-pager a{
  display:block;background:#fff;border:1px solid var(--mk-border);border-radius:var(--mk-radius-card);
  padding:20px 22px;box-shadow:var(--mk-shadow-rest);transition:transform .16s ease,box-shadow .18s ease;
}
.mk-pager a:hover{transform:translateY(-2px);box-shadow:var(--mk-shadow-hover)}
.mk-pager small{display:block;font-size:12.5px;color:var(--mk-muted);margin-bottom:8px}
.mk-pager strong{display:block;font-size:15.5px;font-weight:600;color:var(--mk-ink);line-height:1.5}
.mk-pager a:hover strong{color:var(--mk-primary)}
.mk-backlink{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600}

/* ---------- Related ---------- */
.mk-related{background:#fff;border-top:1px solid var(--mk-border);padding:72px 0}
.mk-head{margin-bottom:36px;max-width:720px}
.mk-head h2{font-size:30px;line-height:1.35;margin-bottom:12px}
.mk-head p{font-size:15.5px;color:var(--mk-muted)}
.mk-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mk-newscard{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--mk-border);
  border-radius:var(--mk-radius-card);overflow:hidden;box-shadow:var(--mk-shadow-rest);
  transition:transform .18s ease,box-shadow .2s ease;
}
.mk-newscard:hover{transform:translateY(-3px);box-shadow:var(--mk-shadow-hover)}
.mk-newscard__cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--mk-primary-soft)}
.mk-newscard__cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.mk-newscard:hover .mk-newscard__cover img{transform:scale(1.04)}
.mk-newscard__cover .mk-badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.95)}
.mk-newscard__body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.mk-newscard__body h3{font-size:17px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mk-newscard__body p{
  font-size:14px;color:var(--mk-muted);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mk-newscard__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--mk-muted)}
.mk-newscard__foot .more{color:var(--mk-primary);font-weight:600}
.mk-newscard__foot .more i{margin-left:6px;font-size:12px;transition:transform .18s ease}
.mk-newscard:hover .mk-newscard__foot .more i{transform:translateX(3px)}

/* ---------- CTA band ---------- */
.mk-cta{background:var(--mk-primary-soft);padding:72px 0}
.mk-cta__inner{text-align:center;max-width:780px;margin:0 auto}
.mk-cta h2{font-size:30px;line-height:1.35;margin-bottom:14px}
.mk-cta p{font-size:16px;color:var(--mk-text);margin-bottom:28px}
.mk-cta__actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}

/* ---------- Footer ---------- */
.mk-footer{background:var(--mk-primary-deep);color:#C6D3EE;padding:64px 0 0}
.mk-footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.mk-footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.mk-footer__brand .mk-logo__text{color:#fff}
.mk-footer__brand .mk-logo__mark i{background:#7FA4F0}
.mk-footer__brand .mk-logo__mark i:nth-child(2){background:var(--mk-accent)}
.mk-footer h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px}
.mk-footer p{font-size:14px;line-height:1.8;color:#A9BBE4}
.mk-footer__links li{margin-bottom:10px}
.mk-footer__links a{font-size:14px;color:#C6D3EE;border-bottom:1px solid transparent;padding-bottom:2px}
.mk-footer__links a:hover{color:var(--mk-accent);border-bottom-color:var(--mk-accent)}
.mk-footer__socials{display:flex;gap:10px;margin-top:20px}
.mk-footer__socials span{
  width:34px;height:34px;border-radius:8px;background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;font-size:13px;color:#C6D3EE;
}
.mk-footer__bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:10px;font-size:13px;color:#8FA5D6;
}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .mk-search{width:230px}
}
@media (max-width:1023px){
  .mk-nav{display:none}
  .mk-search{display:none}
  .mk-burger{display:inline-flex}
  .mk-header__right{gap:10px}
  .mk-article-shell{padding:40px 0 56px}
  .mk-aside{position:static;margin-top:28px}
  .mk-prose{padding:28px 26px 32px}
  .mk-grid-3{grid-template-columns:repeat(2,1fr)}
  .mk-footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .mk-article-hero h1{font-size:31px}
}
@media (max-width:767px){
  :root{--mk-section-y:56px}
  .mk-container{padding:0 18px}
  .mk-header__inner{height:62px;gap:12px}
  .mk-mobile{inset:62px 0 0 0}
  .mk-article-hero{padding:20px 0 30px}
  .mk-article-hero h1{font-size:26px;margin:14px 0 14px}
  .mk-prose{font-size:17px;padding:22px 18px 26px;border-radius:12px}
  .mk-prose h2{font-size:21px}
  .mk-section{padding:var(--mk-section-y) 0}
  .mk-pager{grid-template-columns:1fr}
  .mk-grid-3{grid-template-columns:1fr}
  .mk-cta__actions .mk-btn{width:100%}
  .mk-footer{padding:48px 0 0}
  .mk-footer__grid{grid-template-columns:1fr;gap:28px}
  .mk-breadcrumb .current{max-width:180px}
  .mk-head h2,.mk-cta h2{font-size:24px}
}
@media (max-width:479px){
  body{font-size:15px}
  .mk-article-hero h1{font-size:22px}
  .mk-metabar{font-size:12.5px;gap:10px}
  .mk-metabar .optional{display:none}
  .mk-logo__text{font-size:16px}
  .mk-prose{font-size:16px;line-height:1.85}
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root{
  --mk-primary:#1D5BD6;
  --mk-primary-deep:#10367F;
  --mk-primary-soft:#EAF0FF;
  --mk-accent:#FF7A45;
  --mk-accent-soft:#FFF1EA;
  --mk-ink:#0E1B33;
  --mk-text:#33415C;
  --mk-muted:#6B7A99;
  --mk-bg:#F7F9FC;
  --mk-surface:#FFFFFF;
  --mk-border:#E4E9F2;
  --mk-radius-card:16px;
  --mk-radius-btn:10px;
  --mk-radius-img:14px;
  --mk-shadow-rest:0 1px 2px rgba(14,27,51,.06);
  --mk-shadow-card:0 10px 28px -14px rgba(16,54,127,.18);
  --mk-shadow-hover:0 16px 36px -16px rgba(16,54,127,.26);
  --mk-container:1200px;
}
/* ========== 基础重置 ========== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--mk-text);
  background:var(--mk-bg);
}
img{max-width:100%;height:auto;display:block;}
h1,h2,h3,h4{margin:0;color:var(--mk-ink);font-weight:700;line-height:1.3;letter-spacing:-.01em;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--mk-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease;}
a:hover{color:var(--mk-primary-deep);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;}
:focus-visible{outline:3px solid rgba(29,91,214,.3);outline-offset:2px;}
/* ========== 容器 ========== */
.mk-container{width:100%;max-width:var(--mk-container);margin:0 auto;padding:0 24px;}
/* ========== 顶部导航 ========== */
.mk-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--mk-border);
  transition:box-shadow .22s ease,background-color .22s ease;
}
.mk-header.is-scrolled{background:rgba(255,255,255,.92);box-shadow:0 10px 26px -20px rgba(16,54,127,.6);}
.mk-header__inner{display:flex;align-items:center;gap:20px;min-height:68px;}
.mk-logo{display:inline-flex;align-items:center;gap:10px;color:var(--mk-ink);font-weight:700;font-size:17px;letter-spacing:-.01em;}
.mk-logo:hover{color:var(--mk-primary-deep);}
.mk-logo__mark{width:26px;height:26px;display:grid;grid-template-columns:1fr 1fr;gap:3px;flex:0 0 26px;}
.mk-logo__mark i{display:block;background:var(--mk-primary);border-radius:3px;}
.mk-logo__mark i:nth-child(2){background:var(--mk-primary-deep);}
.mk-nav{display:flex;align-items:center;gap:4px;margin-left:6px;}
.mk-nav__link{
  display:inline-flex;align-items:center;height:36px;padding:0 13px;
  border-radius:8px;color:var(--mk-text);font-size:15px;font-weight:500;
  transition:color .18s ease,background-color .18s ease;
}
.mk-nav__link:hover{color:var(--mk-primary);background:var(--mk-primary-soft);}
.mk-nav__link.is-active{color:var(--mk-primary);background:var(--mk-primary-soft);font-weight:600;}
.mk-header__tools{display:flex;align-items:center;gap:10px;margin-left:auto;}
.mk-search{position:relative;width:260px;}
.mk-search__icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--mk-muted);pointer-events:none;}
.mk-search .mk-search__input{
  width:100%;height:40px;padding:0 16px 0 36px;
  border:1px solid var(--mk-border);border-radius:999px;
  background:var(--mk-bg);color:var(--mk-ink);font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
  margin:0;
}
.mk-search .mk-search__input:focus{outline:none;border-color:var(--mk-primary);background:#fff;box-shadow:0 0 0 3px rgba(29,91,214,.14);}
.mk-icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--mk-border);
  background:#fff;color:var(--mk-muted);display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;transition:all .18s ease;
}
.mk-icon-btn:hover{color:var(--mk-primary);border-color:var(--mk-primary);background:var(--mk-primary-soft);}
/* ========== 按钮 ========== */
.mk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--mk-radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;
  text-align:center;cursor:pointer;transition:all .2s ease;
}
.mk-btn--primary{background:var(--mk-accent);color:#fff;box-shadow:0 8px 20px -14px rgba(255,122,69,.9);}
.mk-btn--primary:hover{background:#F0692F;color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(255,122,69,.95);}
.mk-btn--ghost{background:#fff;color:var(--mk-primary);border-color:var(--mk-primary);}
.mk-btn--ghost:hover{background:var(--mk-primary-soft);color:var(--mk-primary-deep);transform:translateY(-1px);}
.mk-btn--sm{height:40px;padding:0 16px;font-size:14px;}
.mk-btn--block{width:100%;}
.mk-btn:active{transform:translateY(0);}
/* ========== 汉堡与移动面板 ========== */
.mk-burger{
  display:none;width:44px;height:44px;border:1px solid var(--mk-border);background:#fff;
  border-radius:10px;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.mk-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--mk-ink);}
.mk-burger:hover{border-color:var(--mk-primary);}
.mk-mobile{
  position:fixed;inset:0;z-index:90;background:#fff;padding:18px 20px 32px;
  overflow-y:auto;display:none;
}
.mk-mobile.is-open{display:block;}
.mk-mobile__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.mk-mobile__close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--mk-border);
  background:#fff;color:var(--mk-muted);font-size:22px;line-height:1;
}
.mk-mobile__close:hover{color:var(--mk-primary);border-color:var(--mk-primary);}
.mk-search--full{width:100%;margin-bottom:14px;}
.mk-mobile__nav{display:flex;flex-direction:column;margin-top:22px;}
.mk-mobile__link{
  display:flex;align-items:center;min-height:52px;padding:0 4px;
  border-bottom:1px solid var(--mk-border);font-size:16px;font-weight:500;color:var(--mk-text);
}
.mk-mobile__link.is-active{color:var(--mk-primary);font-weight:600;}
/* ========== 分类横幅 ========== */
.mk-banner{
  position:relative;padding:54px 0 48px;min-height:240px;
  background-color:var(--mk-primary-deep);
  background-size:cover;background-position:center;
}
.mk-banner::before{content:"";position:absolute;inset:0;background:rgba(16,54,127,.82);}
.mk-banner__inner{position:relative;z-index:2;}
.mk-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.78);margin-bottom:14px;}
.mk-crumb a{color:rgba(255,255,255,.88);}
.mk-crumb a:hover{color:#fff;text-decoration:underline;}
.mk-banner h1{color:#fff;font-size:40px;margin-bottom:12px;}
.mk-banner__sub{color:rgba(255,255,255,.86);font-size:16px;max-width:680px;margin:0;}
/* ========== 板块 ========== */
.mk-section{padding:88px 0;}
.mk-section--white{background:var(--mk-surface);}
.mk-section--soft{background:var(--mk-primary-soft);}
.mk-section__head{max-width:760px;margin-bottom:40px;}
.mk-eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--mk-primary);
  background:var(--mk-primary-soft);border-radius:6px;padding:4px 10px;margin-bottom:14px;
}
.mk-section--soft .mk-eyebrow{background:#fff;}
.mk-h2{font-size:32px;margin-bottom:14px;}
.mk-lead{font-size:16.5px;color:var(--mk-text);margin:0;}
/* ========== 事实条 ========== */
.mk-facts{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 0;
  padding:22px 24px;background:#fff;border:1px solid var(--mk-border);
  border-radius:var(--mk-radius-card);box-shadow:var(--mk-shadow-rest);
}
.mk-facts__item{display:flex;align-items:baseline;gap:8px;font-size:14px;color:var(--mk-muted);padding:0 24px;border-right:1px solid var(--mk-border);}
.mk-facts__item:last-child{border-right:none;}
.mk-facts__item b{color:var(--mk-ink);font-weight:600;font-variant-numeric:tabular-nums;}
/* ========== 下载卡片栅格 ========== */
.mk-cards{max-width:1200px;}
.mk-cards > .columns{padding-left:12px;padding-right:12px;margin-bottom:24px;}
.mk-card{
  height:100%;background:#fff;border:1px solid var(--mk-border);border-radius:var(--mk-radius-card);
  padding:26px;box-shadow:var(--mk-shadow-rest);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.mk-card:hover{transform:translateY(-2px);box-shadow:var(--mk-shadow-card);border-color:#CFDCF7;}
.mk-card__top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}
.mk-card__title{font-size:19px;}
.mk-badge{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--mk-primary-deep);
  background:var(--mk-primary-soft);border-radius:6px;padding:4px 10px;white-space:nowrap;
}
.mk-card__note{font-size:14px;color:var(--mk-muted);margin:0 0 16px;}
.mk-spec{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed var(--mk-border);font-size:14px;}
.mk-spec:last-of-type{border-bottom:none;}
.mk-spec span:first-child{color:var(--mk-muted);}
.mk-spec span:last-child{color:var(--mk-ink);font-weight:500;font-variant-numeric:tabular-nums;}
.mk-card .mk-btn{margin-top:18px;}
/* ========== 图文区块 ========== */
.mk-split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.mk-split--rev .mk-split__media{order:2;}
.mk-split__media{
  border-radius:var(--mk-radius-img);overflow:hidden;background:var(--mk-primary-soft);
  box-shadow:var(--mk-shadow-card);aspect-ratio:16/11;
}
.mk-split__media img{width:100%;height:100%;object-fit:cover;}
.mk-split__body h3{font-size:22px;margin-bottom:14px;}
.mk-list{margin-top:18px;display:grid;gap:12px;}
.mk-list li{position:relative;padding-left:26px;font-size:15.5px;}
.mk-list li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;background:var(--mk-primary);}
/* ========== 步骤 ========== */
.mk-steps{border-top:1px solid var(--mk-border);}
.mk-step{display:grid;grid-template-columns:88px 1fr;gap:24px;padding:26px 0;border-bottom:1px solid var(--mk-border);}
.mk-step__num{font-size:30px;font-weight:700;color:var(--mk-primary);line-height:1;font-variant-numeric:tabular-nums;}
.mk-step__body h3{font-size:18px;margin-bottom:8px;}
.mk-step__body p{margin:0;font-size:15px;color:var(--mk-muted);}
/* ========== 常见问题 ========== */
.mk-faq{border:none;background:transparent;margin:0;}
.mk-faq .accordion-item{
  border:1px solid var(--mk-border);border-radius:12px;background:#fff;
  margin-bottom:12px;overflow:hidden;
}
.mk-faq .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:17px;font-weight:600;color:var(--mk-ink);
  border:none;background:#fff;line-height:1.5;
}
.mk-faq .accordion-title:hover{color:var(--mk-primary);background:#fff;}
.mk-faq .accordion-content{padding:0 22px 20px;border:none;background:#fff;color:var(--mk-muted);font-size:15px;}
.mk-faq .accordion-content p{margin:0;color:var(--mk-muted);}
.mk-sign{position:relative;flex:0 0 18px;width:18px;height:18px;}
.mk-sign::before,.mk-sign::after{content:"";position:absolute;background:var(--mk-primary);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.mk-sign::before{left:0;right:0;top:8px;height:2px;}
.mk-sign::after{top:0;bottom:0;left:8px;width:2px;}
.mk-faq .accordion-item.is-active .mk-sign::after{transform:scaleY(0);opacity:0;}
/* ========== 交叉入口 ========== */
.mk-cross{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.mk-cross__card{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:24px 26px;background:#fff;border:1px solid var(--mk-border);
  border-radius:var(--mk-radius-card);box-shadow:var(--mk-shadow-rest);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.mk-cross__card:hover{transform:translateY(-2px);box-shadow:var(--mk-shadow-card);border-color:#CFDCF7;}
.mk-cross__card strong{display:block;font-size:17px;color:var(--mk-ink);font-weight:600;}
.mk-cross__card span{display:block;font-size:14px;color:var(--mk-muted);margin-top:4px;}
.mk-cross__arrow{font-size:18px;color:var(--mk-primary);}
/* ========== 结尾行动条 ========== */
.mk-cta{background:var(--mk-primary-soft);padding:64px 0;}
.mk-cta__inner{max-width:720px;margin:0 auto;text-align:center;}
.mk-cta h2{font-size:30px;margin-bottom:14px;}
.mk-cta p{color:var(--mk-muted);margin-bottom:26px;}
.mk-cta__actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;}
/* ========== 页脚 ========== */
.mk-footer{background:var(--mk-primary-deep);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px;}
.mk-footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.mk-footer h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.mk-footer p{color:rgba(255,255,255,.7);line-height:1.8;margin:14px 0 0;}
.mk-footer__brand{display:flex;align-items:center;gap:10px;}
.mk-footer__brand .mk-logo__text{color:#fff;font-weight:700;font-size:17px;}
.mk-footer .mk-logo__mark i{background:#fff;}
.mk-footer__links{display:grid;gap:10px;}
.mk-footer__links a{color:rgba(255,255,255,.75);font-size:14px;}
.mk-footer__links a:hover{color:var(--mk-accent);text-decoration:underline;}
.mk-footer__socials{display:flex;gap:10px;margin-top:18px;}
.mk-footer__socials span{
  width:32px;height:32px;border-radius:8px;background:rgba(255,255,255,.08);
  display:inline-flex;align-items:center;justify-content:center;font-size:12.5px;color:rgba(255,255,255,.8);
}
.mk-footer__bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
/* ========== 响应式 ========== */
@media screen and (max-width:1100px){
  .mk-search{width:210px;}
  .mk-nav__link{padding:0 10px;font-size:14.5px;}
}
@media screen and (max-width:1023px){
  .mk-nav{display:none;}
  .mk-burger{display:flex;}
  .mk-split{gap:36px;}
  .mk-footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
  .mk-banner h1{font-size:34px;}
}
@media screen and (max-width:767px){
  .mk-header__tools .mk-search{display:none;}
  .mk-header__tools .mk-icon-btn{display:none;}
  .mk-banner{padding:44px 0 40px;}
  .mk-banner h1{font-size:28px;}
  .mk-section{padding:56px 0;}
  .mk-h2{font-size:26px;}
  .mk-split{grid-template-columns:1fr;}
  .mk-split--rev .mk-split__media{order:0;}
  .mk-step{grid-template-columns:56px 1fr;gap:16px;}
  .mk-step__num{font-size:24px;}
  .mk-cross{grid-template-columns:1fr;}
  .mk-facts{padding:18px 20px;}
  .mk-facts__item{border-right:none;padding:0;width:100%;}
  .mk-cta h2{font-size:24px;}
  .mk-footer__grid{grid-template-columns:1fr;}
  .mk-footer__bottom{flex-direction:column;gap:8px;}
}
@media screen and (max-width:519px){
  body{font-size:15px;}
  .mk-container{padding:0 16px;}
  .mk-logo{font-size:16px;}
  .mk-banner h1{font-size:24px;}
  .mk-banner__sub{font-size:15px;}
  .mk-h2{font-size:22px;}
  .mk-lead{font-size:15.5px;}
  .mk-card{padding:20px;}
  .mk-faq .accordion-title{font-size:16px;padding:16px 18px;}
  .mk-faq .accordion-content{padding:0 18px 16px;}
  .mk-cta__actions{flex-direction:column;}
  .mk-cta__actions .mk-btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --mk-primary:#1D5BD6;
  --mk-primary-deep:#10367F;
  --mk-primary-soft:#EAF0FF;
  --mk-accent:#FF7A45;
  --mk-accent-soft:#FFF1EA;
  --mk-ink:#0E1B33;
  --mk-text:#33415C;
  --mk-muted:#6B7A99;
  --mk-bg:#F7F9FC;
  --mk-surface:#FFFFFF;
  --mk-border:#E4E9F2;
  --mk-radius-card:16px;
  --mk-radius-btn:10px;
  --mk-radius-badge:6px;
  --mk-radius-img:14px;
  --mk-shadow-rest:0 1px 2px rgba(14,27,51,.06);
  --mk-shadow-card:0 10px 28px -14px rgba(16,54,127,.18);
  --mk-shadow-hover:0 16px 36px -16px rgba(16,54,127,.26);
  --mk-container:1200px;
  --mk-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--mk-font);
  font-size:16px;
  line-height:1.8;
  color:var(--mk-text);
  background:var(--mk-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--mk-ink);font-weight:700;line-height:1.32;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--mk-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--mk-primary-deep)}
img{max-width:100%;display:block;border-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
:focus-visible{outline:3px solid rgba(29,91,214,.3);outline-offset:2px;border-radius:8px}
.mk-container{width:100%;max-width:var(--mk-container);margin:0 auto;padding:0 24px}
.mk-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header ---------- */
.mk-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--mk-border);
  transition:box-shadow .22s ease;
}
.mk-header.is-scrolled{box-shadow:0 10px 26px -20px rgba(16,54,127,.55)}
.mk-header__inner{display:flex;align-items:center;gap:22px;height:68px}
.mk-logo{display:inline-flex;align-items:center;gap:10px;color:var(--mk-ink);font-weight:700;font-size:18px;flex:0 0 auto}
.mk-logo:hover{color:var(--mk-primary-deep)}
.mk-logo__mark{display:grid;grid-template-columns:repeat(2,1fr);gap:2px;width:26px;height:26px;flex:0 0 auto}
.mk-logo__mark i{display:block;border-radius:3px;background:var(--mk-primary)}
.mk-logo__mark i:nth-child(2){background:var(--mk-primary-deep)}
.mk-logo__mark i:nth-child(3){background:var(--mk-primary-deep)}
.mk-logo__mark i:nth-child(4){background:var(--mk-accent)}
.mk-logo__text{white-space:nowrap}
.mk-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.mk-nav__link{position:relative;display:inline-flex;align-items:center;padding:10px 12px;border-radius:8px;font-size:15px;font-weight:500;color:var(--mk-text)}
.mk-nav__link:hover{background:var(--mk-primary-soft);color:var(--mk-primary)}
.mk-nav__link.is-active{color:var(--mk-primary);font-weight:600}
.mk-nav__link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:var(--mk-primary)}
.mk-header__actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.mk-search{position:relative;display:flex;align-items:center;width:248px;height:40px;border:1px solid var(--mk-border);border-radius:999px;background:var(--mk-surface);transition:border-color .18s ease,box-shadow .18s ease}
.mk-search:focus-within{border-color:var(--mk-primary);box-shadow:0 0 0 3px rgba(29,91,214,.14)}
.mk-search__icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--mk-muted);line-height:1}
.mk-search input{width:100%;height:100%;border:0;background:transparent;padding:0 16px 0 36px;font-size:14px;outline:none;border-radius:999px}
.mk-search input::placeholder{color:var(--mk-muted)}
.mk-iconbtn{width:40px;height:40px;border-radius:10px;border:1px solid var(--mk-border);background:var(--mk-surface);display:inline-flex;align-items:center;justify-content:center;color:var(--mk-muted);transition:all .18s ease}
.mk-iconbtn:hover{color:var(--mk-primary);border-color:rgba(29,91,214,.35);background:var(--mk-primary-soft)}
.mk-hamburger{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--mk-border);background:var(--mk-surface);align-items:center;justify-content:center;color:var(--mk-ink)}
.mk-hamburger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.mk-hamburger span::before,.mk-hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.mk-hamburger span::before{top:-6px}
.mk-hamburger span::after{top:6px}

/* ---------- buttons ---------- */
.mk-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--mk-radius-btn);border:1px solid transparent;font-size:15px;font-weight:600;white-space:nowrap;transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease}
.mk-btn--primary{background:var(--mk-accent);color:#fff;box-shadow:0 10px 20px -14px rgba(255,122,69,.95)}
.mk-btn--primary:hover{background:#f26a34;color:#fff;transform:translateY(-1px);box-shadow:0 16px 26px -16px rgba(255,122,69,1)}
.mk-btn--primary:active{transform:translateY(0)}
.mk-btn--ghost{background:var(--mk-surface);color:var(--mk-primary);border-color:rgba(29,91,214,.35)}
.mk-btn--ghost:hover{background:var(--mk-primary-soft);color:var(--mk-primary-deep);transform:translateY(-1px)}
.mk-btn--sm{height:40px;padding:0 18px;font-size:14px}
.mk-btn--lg{height:52px;padding:0 30px;font-size:16px}
.mk-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.mk-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--mk-primary)}
.mk-link .mk-link__arrow{transition:transform .2s ease}
.mk-link:hover .mk-link__arrow{transform:translateX(4px)}

/* ---------- banner ---------- */
.mk-banner{position:relative;overflow:hidden;background:var(--mk-primary-deep)}
.mk-banner__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.5}
.mk-banner__veil{position:absolute;inset:0;background:rgba(16,54,127,.68)}
.mk-banner__inner{position:relative;min-height:250px;padding:52px 0 46px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.mk-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72)}
.mk-crumb a{color:rgba(255,255,255,.88)}
.mk-crumb a:hover{color:#fff;text-decoration:underline}
.mk-crumb .mk-crumb__sep{color:rgba(255,255,255,.5)}
.mk-banner h1{color:#fff;font-size:44px;line-height:1.24}
.mk-banner__sub{font-size:17px;color:rgba(255,255,255,.88);max-width:760px;line-height:1.75}
.mk-banner__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.mk-banner__tags span{font-size:12.5px;font-weight:500;color:#fff;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);border-radius:6px;padding:4px 10px}

/* ---------- sections ---------- */
.mk-section{padding:96px 0}
.mk-section--tight{padding:64px 0 0}
.mk-section--surface{background:var(--mk-surface);border-top:1px solid var(--mk-border);border-bottom:1px solid var(--mk-border)}
.mk-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--mk-primary);background:var(--mk-primary-soft);border-radius:var(--mk-radius-badge);padding:4px 10px;margin-bottom:16px}
.mk-sec-head{max-width:760px;margin-bottom:44px}
.mk-sec-head h2{font-size:32px;margin-bottom:14px}
.mk-sec-head p{font-size:16px;color:var(--mk-muted);line-height:1.85}
.mk-lead{font-size:17px;line-height:1.9;color:var(--mk-text);max-width:820px}

/* ---------- facts ---------- */
.mk-facts{display:flex;flex-wrap:wrap;margin-top:36px;border-top:1px solid var(--mk-border);border-bottom:1px solid var(--mk-border)}
.mk-facts li{flex:1 1 220px;padding:20px 24px;border-left:1px solid var(--mk-border)}
.mk-facts li:first-child{border-left:0;padding-left:0}
.mk-facts b{display:block;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;font-size:21px;font-weight:700;color:var(--mk-ink);letter-spacing:-.01em}
.mk-facts span{display:block;font-size:13px;color:var(--mk-muted);margin-top:4px}

/* ---------- modules ---------- */
.mk-modules{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.mk-module{background:var(--mk-surface);border:1px solid var(--mk-border);border-radius:var(--mk-radius-card);padding:26px 26px 24px;box-shadow:var(--mk-shadow-rest);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.mk-module:hover{transform:translateY(-2px);box-shadow:var(--mk-shadow-card);border-color:rgba(29,91,214,.28)}
.mk-module__top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.mk-module__no{font-family:system-ui,-apple-system,"Segoe UI",sans-serif;font-size:13px;font-weight:700;color:var(--mk-primary);background:var(--mk-primary-soft);border-radius:var(--mk-radius-badge);padding:3px 9px}
.mk-module h3{font-size:19px}
.mk-module p{font-size:15px;line-height:1.85;color:var(--mk-text);margin-bottom:16px}
.mk-module__meta{display:flex;flex-wrap:wrap;gap:8px}
.mk-chip{display:inline-block;font-size:12.5px;font-weight:500;color:var(--mk-primary-deep);background:var(--mk-primary-soft);border-radius:var(--mk-radius-badge);padding:4px 10px}

/* ---------- note band ---------- */
.mk-note{display:grid;grid-template-columns:1.12fr .88fr;background:var(--mk-primary-deep);border-radius:20px;overflow:hidden;box-shadow:var(--mk-shadow-card)}
.mk-note__body{padding:48px 44px;color:#D7E2F7}
.mk-note__body h3{color:#fff;font-size:26px;margin-bottom:16px}
.mk-note__body p{font-size:15.5px;line-height:1.9;color:#C3D2EE;margin-bottom:18px}
.mk-note__list{display:grid;gap:10px;margin-bottom:24px}
.mk-note__list li{position:relative;padding-left:20px;font-size:14.5px;color:#C3D2EE}
.mk-note__list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;background:var(--mk-accent);border-radius:2px}
.mk-note__media{position:relative;min-height:280px}
.mk-note__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

/* ---------- path ---------- */
.mk-path{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.mk-step{background:var(--mk-surface);border:1px solid var(--mk-border);border-radius:var(--mk-radius-card);padding:26px 22px;box-shadow:var(--mk-shadow-rest);transition:transform .2s ease,box-shadow .2s ease}
.mk-step:hover{transform:translateY(-2px);box-shadow:var(--mk-shadow-card)}
.mk-step__no{font-family:system-ui,-apple-system,"Segoe UI",sans-serif;font-size:30px;font-weight:700;line-height:1;color:var(--mk-primary);opacity:.28;margin-bottom:16px}
.mk-step h3{font-size:18px;margin-bottom:8px}
.mk-step p{font-size:14.5px;line-height:1.8;color:var(--mk-muted)}

/* ---------- scenes ---------- */
.mk-scenes{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.mk-scene{background:var(--mk-surface);border:1px solid var(--mk-border);border-left:3px solid var(--mk-primary);border-radius:0 var(--mk-radius-img) var(--mk-radius-img) 0;padding:24px 26px;box-shadow:var(--mk-shadow-rest);transition:box-shadow .2s ease,transform .2s ease}
.mk-scene:hover{transform:translateY(-2px);box-shadow:var(--mk-shadow-card)}
.mk-scene h3{font-size:18px;margin-bottom:8px}
.mk-scene p{font-size:15px;line-height:1.85;color:var(--mk-muted)}

/* ---------- form ---------- */
.mk-form-wrap{display:grid;grid-template-columns:.92fr 1.08fr;gap:48px;align-items:start;background:var(--mk-surface);border:1px solid var(--mk-border);border-radius:20px;padding:44px;box-shadow:var(--mk-shadow-card)}
.mk-form-intro h2{font-size:28px;margin-bottom:14px}
.mk-form-intro p{font-size:15.5px;color:var(--mk-muted);line-height:1.9;margin-bottom:24px}
.mk-form-intro__media{border-radius:var(--mk-radius-img);overflow:hidden;aspect-ratio:16/10;background:var(--mk-primary-soft)}
.mk-form-intro__media img{width:100%;height:100%;object-fit:cover}
.mk-form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.mk-field{display:block;margin-bottom:18px}
.mk-field label{display:block;font-size:14px;font-weight:600;color:var(--mk-ink);margin-bottom:8px}
.mk-input,.mk-select,.mk-textarea{width:100%;border:1px solid var(--mk-border);border-radius:var(--mk-radius-btn);background:var(--mk-surface);padding:0 14px;height:46px;font-size:15px;outline:none;transition:border-color .18s ease,box-shadow .18s ease;appearance:none}
.mk-select{background-image:linear-gradient(45deg,transparent 50%,var(--mk-muted) 50%),linear-gradient(135deg,var(--mk-muted) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.mk-textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.75;resize:vertical}
.mk-input:focus,.mk-select:focus,.mk-textarea:focus{border-color:var(--mk-primary);box-shadow:0 0 0 3px rgba(29,91,214,.14)}
.mk-input::placeholder,.mk-textarea::placeholder{color:#9AA8C2}
.mk-field__hint{display:block;font-size:12.5px;color:var(--mk-muted);margin-top:6px}
.mk-check{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--mk-muted);line-height:1.7;margin:6px 0 20px}
.mk-check input{width:16px;height:16px;margin-top:4px;accent-color:var(--mk-primary);flex:0 0 auto}
.mk-form-note{font-size:12.5px;color:var(--mk-accent);margin-top:12px;display:none}
.mk-form-note.is-show{display:block}

/* ---------- faq ---------- */
.mk-faq{display:grid;gap:12px;max-width:920px}
.mk-faq__item{background:var(--mk-surface);border:1px solid var(--mk-border);border-radius:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.mk-faq__item:hover{border-color:rgba(29,91,214,.3)}
.mk-faq__item.is-open{border-color:rgba(29,91,214,.35);box-shadow:var(--mk-shadow-card)}
.mk-faq__q{display:flex;width:100%;align-items:flex-start;justify-content:space-between;gap:20px;text-align:left;padding:20px 24px;font-size:18px;font-weight:600;color:var(--mk-ink);line-height:1.6}
.mk-faq__sign{position:relative;flex:0 0 auto;width:16px;height:16px;margin-top:6px}
.mk-faq__sign::before,.mk-faq__sign::after{content:"";position:absolute;left:0;top:7px;width:16px;height:2px;border-radius:2px;background:var(--mk-primary);transition:transform .2s ease,opacity .2s ease}
.mk-faq__sign::after{transform:rotate(90deg)}
.mk-faq__item.is-open .mk-faq__sign::after{transform:rotate(0);opacity:0}
.mk-faq__a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .2s ease}
.mk-faq__item.is-open .mk-faq__a{grid-template-rows:1fr}
.mk-faq__inner{overflow:hidden}
.mk-faq__inner p{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--mk-muted)}

/* ---------- related ---------- */
.mk-related{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.mk-related a{display:flex;flex-direction:column;gap:6px;padding:22px 20px;border-radius:var(--mk-radius-img);border:1px solid var(--mk-border);background:var(--mk-surface);box-shadow:var(--mk-shadow-rest);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.mk-related a:hover{transform:translateY(-2px);box-shadow:var(--mk-shadow-card);border-color:rgba(29,91,214,.3)}
.mk-related strong{font-size:16px;color:var(--mk-ink);font-weight:600}
.mk-related em{font-style:normal;font-size:13.5px;color:var(--mk-muted);line-height:1.7}
.mk-related a.is-current{border-color:rgba(29,91,214,.4);background:var(--mk-primary-soft)}
.mk-related a.is-current strong{color:var(--mk-primary)}

/* ---------- cta ---------- */
.mk-cta{background:var(--mk-primary-soft);border-radius:20px;padding:56px 40px;text-align:center}
.mk-cta h2{font-size:30px;margin-bottom:12px}
.mk-cta p{font-size:16px;color:var(--mk-text);max-width:640px;margin:0 auto 28px}
.mk-cta .mk-actions{justify-content:center}

/* ---------- footer ---------- */
.mk-footer{background:var(--mk-primary-deep);color:#C8D4EA;padding:72px 0 0;margin-top:96px}
.mk-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.mk-footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px}
.mk-footer__brand .mk-logo__mark i{background:#5E8CE8}
.mk-footer__brand .mk-logo__mark i:nth-child(2),.mk-footer__brand .mk-logo__mark i:nth-child(3){background:#8FB0F0}
.mk-footer__brand .mk-logo__mark i:nth-child(4){background:var(--mk-accent)}
.mk-footer p{font-size:14px;line-height:1.9;color:#A9B8D4;margin-top:18px;max-width:340px}
.mk-footer h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.mk-footer__links{display:grid;gap:10px}
.mk-footer__links a{font-size:14px;color:#A9B8D4}
.mk-footer__links a:hover{color:var(--mk-accent);text-decoration:underline}
.mk-footer__socials{display:flex;gap:8px;margin-top:22px}
.mk-footer__socials span{width:34px;height:34px;border-radius:8px;background:rgba(255,255,255,.08);display:grid;place-items:center;font-size:13px;color:#C8D4EA}
.mk-footer__bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.13);padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;color:#8FA1C4}

/* ---------- mobile panel ---------- */
.mk-mobile{position:fixed;inset:0;z-index:90;display:flex;flex-direction:column;gap:20px;padding:22px;background:var(--mk-surface);overflow-y:auto;transform:translateX(101%);transition:transform .28s ease}
.mk-mobile.is-open{transform:translateX(0)}
.mk-mobile__top{display:flex;align-items:center;justify-content:space-between}
.mk-mobile__close{width:44px;height:44px;border-radius:10px;border:1px solid var(--mk-border);display:grid;place-items:center;font-size:20px;color:var(--mk-ink)}
.mk-mobile .mk-search{width:100%;height:46px}
.mk-mobile__links{display:grid;gap:4px}
.mk-mobile__links a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;font-size:16px;font-weight:500;color:var(--mk-ink)}
.mk-mobile__links a:hover{background:var(--mk-primary-soft);color:var(--mk-primary)}
.mk-mobile__links a.is-active{background:var(--mk-primary-soft);color:var(--mk-primary);font-weight:600}
.mk-mobile .mk-btn{width:100%}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .mk-search{width:200px}
  .mk-nav__link{padding:10px 10px;font-size:14.5px}
}
@media (max-width:1023px){
  .mk-section{padding:72px 0}
  .mk-path{grid-template-columns:repeat(2,1fr)}
  .mk-related{grid-template-columns:repeat(2,1fr)}
  .mk-note{grid-template-columns:1fr}
  .mk-note__media{min-height:240px}
  .mk-form-wrap{grid-template-columns:1fr;gap:32px;padding:34px}
}
@media (max-width:900px){
  .mk-search{display:none}
}
@media (max-width:767px){
  .mk-nav{display:none}
  .mk-header__actions .mk-btn--sm{display:none}
  .mk-hamburger{display:inline-flex}
  .mk-container{padding:0 16px}
  .mk-header__inner{gap:14px}
  .mk-banner__inner{min-height:210px;padding:38px 0 34px;gap:10px}
  .mk-banner h1{font-size:28px}
  .mk-banner__sub{font-size:15.5px}
  .mk-section{padding:56px 0}
  .mk-section--tight{padding:44px 0 0}
  .mk-sec-head{margin-bottom:30px}
  .mk-sec-head h2{font-size:24px}
  .mk-sec-head p,.mk-lead{font-size:15.5px}
  .mk-modules,.mk-scenes,.mk-related,.mk-form-row,.mk-path{grid-template-columns:1fr}
  .mk-facts li{flex:1 1 100%;border-left:0;border-top:1px solid var(--mk-border);padding:14px 0}
  .mk-facts li:first-child{border-top:0}
  .mk-note__body{padding:32px 24px}
  .mk-note__body h3{font-size:22px}
  .mk-faq__q{font-size:16.5px;padding:18px 18px}
  .mk-faq__inner p{padding:0 18px 20px}
  .mk-cta{padding:38px 22px}
  .mk-cta h2{font-size:23px}
  .mk-cta .mk-actions{flex-direction:column;align-items:stretch}
  .mk-cta .mk-btn{width:100%}
  .mk-form-wrap{padding:24px}
  .mk-footer{padding:52px 0 0;margin-top:64px}
  .mk-footer__grid{grid-template-columns:1fr 1fr;gap:30px}
  .mk-footer__bottom{margin-top:38px}
}
@media (max-width:520px){
  body{font-size:15px}
  .mk-banner h1{font-size:24px}
  .mk-sec-head h2{font-size:21px}
  .mk-form-intro h2{font-size:22px}
  .mk-cta h2{font-size:20px}
  .mk-module{padding:22px 20px}
  .mk-footer__grid{grid-template-columns:1fr}
  .mk-facts b{font-size:19px}
}