/* roulang page: index */
:root{
  --mk-primary:#1F5DA8;
  --mk-primary-strong:#174A87;
  --mk-primary-soft:#E8F0FA;
  --mk-accent:#D08A2C;
  --mk-accent-soft:#FBF0DE;
  --mk-ink:#0F1B2B;
  --mk-body:#3C4B5E;
  --mk-muted:#6B7B90;
  --mk-line:#E2E8F0;
  --mk-bg:#F5F8FC;
  --mk-surface:#FFFFFF;
  --mk-bg-alt:#EDF3FA;
  --mk-night:#10233A;
  --mk-r-sm:8px;
  --mk-r-md:12px;
  --mk-r-lg:16px;
  --mk-r-xl:22px;
  --mk-sh-1:0 1px 2px rgba(15,27,43,.05),0 6px 16px rgba(15,27,43,.06);
  --mk-sh-2:0 2px 6px rgba(15,27,43,.07),0 14px 32px rgba(15,27,43,.09);
  --mk-nav-h:64px;
  --mk-ease:.22s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--mk-body);
  background:var(--mk-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  margin:0;
  color:var(--mk-ink);
  font-weight:700;
  letter-spacing:-0.01em;
  line-height:1.3;
}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--mk-primary);text-decoration:none;transition:color var(--mk-ease);}
a:hover{color:var(--mk-primary-strong);}
img{max-width:100%;display:block;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--mk-primary);outline-offset:2px;border-radius:4px;}
.mk-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.mk-section{padding:92px 0;}
.mk-section--tight{padding:64px 0;}
.mk-section--alt{background:var(--mk-bg-alt);}
.mk-section-head{margin-bottom:36px;}
.mk-section-head--row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.mk-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--mk-primary);
  background:var(--mk-primary-soft);
  border-radius:999px;
  padding:5px 12px;
  margin-bottom:16px;
}
.mk-h2{
  font-size:32px;
  line-height:1.3;
  letter-spacing:-0.01em;
  position:relative;
  padding-left:14px;
}
.mk-h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.22em;
  bottom:.22em;
  width:4px;
  border-radius:2px;
  background:var(--mk-primary);
}
.mk-section-desc{
  margin-top:14px;
  font-size:15px;
  color:var(--mk-muted);
  max-width:660px;
}
.mk-link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--mk-primary);
  border-bottom:1px solid transparent;
  transition:border-color var(--mk-ease),color var(--mk-ease);
}
.mk-link-more:hover{border-bottom-color:var(--mk-accent);color:var(--mk-primary-strong);}

/* ---------- 按钮 ---------- */
.mk-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  font-size:15px;
  font-weight:600;
  border-radius:10px;
  border:1px solid transparent;
  transition:background var(--mk-ease),color var(--mk-ease),border-color var(--mk-ease),transform var(--mk-ease),box-shadow var(--mk-ease);
  white-space:nowrap;
}
.mk-btn:active{transform:translateY(0);}
.mk-btn-primary{background:var(--mk-primary);color:#fff;box-shadow:var(--mk-sh-1);}
.mk-btn-primary:hover{background:var(--mk-primary-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--mk-sh-2);}
.mk-btn-ghost{background:var(--mk-surface);color:var(--mk-ink);border-color:#CBD8E6;}
.mk-btn-ghost:hover{border-color:var(--mk-primary);color:var(--mk-primary);transform:translateY(-1px);box-shadow:var(--mk-sh-1);}
.mk-btn-sm{height:40px;font-size:14px;padding:0 16px;}
.mk-btn-block{width:100%;}

/* ---------- 导航 ---------- */
.mk-header{
  position:sticky;
  top:0;
  z-index:120;
  background:#FFFFFF;
  border-bottom:1px solid var(--mk-line);
}
.mk-nav-wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  height:var(--mk-nav-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.mk-nav-left{display:flex;align-items:center;gap:34px;min-width:0;}
.mk-logo{display:inline-flex;align-items:center;gap:10px;flex:none;}
.mk-logo-mark{
  width:24px;height:24px;border-radius:6px;background:var(--mk-primary);
  display:inline-flex;align-items:center;justify-content:center;flex:none;
}
.mk-logo-mark svg{width:14px;height:14px;display:block;}
.mk-logo-text{font-size:18px;font-weight:700;color:var(--mk-ink);letter-spacing:-0.01em;white-space:nowrap;}
.mk-logo:hover .mk-logo-text{color:var(--mk-primary);}
.mk-menu{display:flex;align-items:center;gap:26px;}
.mk-menu a{
  position:relative;
  display:inline-block;
  font-size:15px;
  font-weight:500;
  color:var(--mk-ink);
  line-height:var(--mk-nav-h);
  padding:0;
  transition:color var(--mk-ease);
}
.mk-menu a::after{
  content:"";
  position:absolute;
  left:0;bottom:18px;
  height:2px;width:16px;
  background:var(--mk-primary);
  border-radius:2px;
  opacity:0;
  transition:width var(--mk-ease),opacity var(--mk-ease);
}
.mk-menu a:hover{color:var(--mk-primary);}
.mk-menu a:hover::after{opacity:1;width:100%;}
.mk-menu a.is-active{color:var(--mk-primary);font-weight:600;}
.mk-menu a.is-active::after{opacity:1;width:100%;}
.mk-nav-right{display:flex;align-items:center;gap:14px;flex:none;}
.mk-icon-btn{
  width:40px;height:40px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--mk-body);
  transition:background var(--mk-ease),color var(--mk-ease);
}
.mk-icon-btn:hover{background:var(--mk-primary-soft);color:var(--mk-primary);}
.mk-nav-link{font-size:14px;color:var(--mk-muted);font-weight:500;}
.mk-nav-link:hover{color:var(--mk-primary);}
.mk-burger{
  display:none;
  width:40px;height:40px;border-radius:10px;
  align-items:center;justify-content:center;
  color:var(--mk-ink);
  border:1px solid var(--mk-line);
}
.mk-burger:hover{background:var(--mk-primary-soft);color:var(--mk-primary);}
.mk-drawer{
  display:none;
  border-top:1px solid var(--mk-line);
  background:#fff;
  padding:8px 0 0;
}
.mk-drawer.is-open{display:block;}
.mk-drawer a.mk-drawer-item{
  display:flex;align-items:center;
  height:48px;padding:0 24px;
  font-size:15px;color:var(--mk-ink);font-weight:500;
  border-left:3px solid transparent;
}
.mk-drawer a.mk-drawer-item:hover{background:var(--mk-bg);color:var(--mk-primary);}
.mk-drawer a.mk-drawer-item.is-active{border-left-color:var(--mk-primary);color:var(--mk-primary);background:var(--mk-primary-soft);}
.mk-drawer-cta{padding:14px 24px 20px;}

/* ---------- Hero ---------- */
.mk-hero{
  background:linear-gradient(180deg,#FFFFFF 0%,var(--mk-bg) 100%);
  padding:64px 0 78px;
  scroll-margin-top:88px;
}
.mk-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;
  align-items:center;
}
.mk-hero h1{
  font-size:46px;
  line-height:1.22;
  letter-spacing:-0.01em;
  margin-bottom:18px;
}
.mk-hero-sub{
  font-size:18px;
  line-height:1.7;
  color:var(--mk-body);
  max-width:520px;
  margin-bottom:28px;
}
.mk-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.mk-metrics{
  display:flex;
  align-items:center;
  gap:0;
  flex-wrap:wrap;
}
.mk-metric{padding:0 22px;}
.mk-metric:first-child{padding-left:0;}
.mk-metric + .mk-metric{border-left:1px solid var(--mk-line);}
.mk-metric strong{
  display:block;
  font-size:24px;
  font-weight:700;
  color:var(--mk-primary);
  line-height:1.3;
}
.mk-metric span{font-size:13px;color:var(--mk-muted);line-height:1.6;}
.mk-hero-figure{
  position:relative;
  margin:0;
  border-radius:var(--mk-r-lg);
  overflow:visible;
}
.mk-hero-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--mk-r-lg);
  border:1px solid var(--mk-line);
  box-shadow:var(--mk-sh-2);
}
.mk-float-card{
  position:absolute;
  left:-18px;
  bottom:-22px;
  background:#fff;
  border:1px solid var(--mk-line);
  border-radius:var(--mk-r-md);
  box-shadow:var(--mk-sh-2);
  padding:14px 18px;
  min-width:196px;
}
.mk-float-card b{display:block;font-size:13px;color:var(--mk-muted);font-weight:500;margin-bottom:4px;}
.mk-float-card strong{font-size:17px;color:var(--mk-ink);display:block;line-height:1.4;}
.mk-float-card .mk-dot-ok{
  display:inline-block;width:7px;height:7px;border-radius:50%;
  background:#2F9E6E;margin-right:6px;vertical-align:middle;
}

/* ---------- 价值条 ---------- */
.mk-valuebar{
  background:var(--mk-surface);
  border-top:1px solid var(--mk-line);
  border-bottom:1px solid var(--mk-line);
  padding:38px 0;
}
.mk-value-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
}
.mk-value-item{padding:0 24px;}
.mk-value-item:first-child{padding-left:0;}
.mk-value-item + .mk-value-item{border-left:1px solid var(--mk-line);}
.mk-value-item .mk-num{
  font-size:20px;font-weight:700;color:var(--mk-primary);
  display:block;margin-bottom:6px;line-height:1.3;
}
.mk-value-item h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.mk-value-item p{font-size:14px;color:var(--mk-muted);line-height:1.7;margin:0;}

/* ---------- 功能分组 ---------- */
.mk-feature-grid{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:24px;
}
.mk-card{
  background:var(--mk-surface);
  border:1px solid var(--mk-line);
  border-radius:14px;
  box-shadow:var(--mk-sh-1);
  overflow:hidden;
  transition:transform var(--mk-ease),box-shadow var(--mk-ease),border-color var(--mk-ease);
}
.mk-card:hover{transform:translateY(-2px);box-shadow:var(--mk-sh-2);}
.mk-feature-main{display:flex;flex-direction:column;}
.mk-feature-main img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform var(--mk-ease);
}
.mk-feature-main:hover img{transform:scale(1.03);}
.mk-feature-main .mk-card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.mk-feature-main h3{font-size:22px;}
.mk-feature-main p{font-size:15px;color:var(--mk-body);margin:0;}
.mk-feature-main .mk-link-more{margin-top:auto;}
.mk-sub-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.mk-sub-card{
  background:var(--mk-surface);
  border:1px solid var(--mk-line);
  border-radius:14px;
  box-shadow:var(--mk-sh-1);
  padding:24px;
  transition:border-color var(--mk-ease),transform var(--mk-ease),box-shadow var(--mk-ease);
}
.mk-sub-card:hover{border-color:var(--mk-primary);transform:translateY(-2px);box-shadow:var(--mk-sh-2);}
.mk-ico{
  width:38px;height:38px;border-radius:10px;
  background:var(--mk-primary-soft);color:var(--mk-primary);
  display:inline-flex;align-items:center;justify-content:center;
  margin-bottom:14px;
}
.mk-ico svg{width:20px;height:20px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.mk-sub-card h4{font-size:17px;font-weight:600;margin-bottom:8px;}
.mk-sub-card p{font-size:14px;color:var(--mk-muted);margin:0;line-height:1.7;}

/* ---------- 场景 ---------- */
.mk-scene{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:56px;
  align-items:center;
}
.mk-scene + .mk-scene{margin-top:64px;}
.mk-scene-media{
  border-radius:var(--mk-r-lg);
  overflow:hidden;
  border:1px solid var(--mk-line);
  box-shadow:var(--mk-sh-1);
}
.mk-scene-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform var(--mk-ease);}
.mk-scene-media:hover img{transform:scale(1.03);}
.mk-scene-body h3{font-size:24px;margin-bottom:14px;}
.mk-scene-body p{font-size:16px;color:var(--mk-body);margin-bottom:18px;}
.mk-check-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;color:var(--mk-body);
  padding:7px 0;
}
.mk-check-list li::before{
  content:"";
  flex:none;
  width:16px;height:16px;margin-top:5px;
  border-radius:50%;
  background:var(--mk-primary-soft);
  border:1px solid var(--mk-primary);
  background-image:linear-gradient(var(--mk-primary),var(--mk-primary));
  background-size:8px 2px;
  background-position:center;
  background-repeat:no-repeat;
}

/* ---------- 案例 ---------- */
.mk-case-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.mk-case-card{
  background:var(--mk-surface);
  border:1px solid var(--mk-line);
  border-radius:14px;
  box-shadow:var(--mk-sh-1);
  padding:26px;
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:transform var(--mk-ease),box-shadow var(--mk-ease);
}
.mk-case-card:hover{transform:translateY(-2px);box-shadow:var(--mk-sh-2);}
.mk-tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  color:var(--mk-primary);
  background:var(--mk-primary-soft);
  border-radius:999px;
  padding:4px 10px;
  line-height:1.6;
}
.mk-case-num{font-size:28px;font-weight:700;color:var(--mk-primary);line-height:1.3;}
.mk-case-num small{font-size:14px;font-weight:500;color:var(--mk-muted);margin-left:6px;}
.mk-case-card p{font-size:14px;color:var(--mk-body);margin:0;}
.mk-case-source{font-size:13px;color:var(--mk-muted);margin-top:auto;padding-top:10px;border-top:1px solid var(--mk-line);}

/* ---------- 价格 ---------- */
.mk-price-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  align-items:stretch;
  padding-top:12px;
}
.mk-price-card{
  position:relative;
  background:var(--mk-surface);
  border:1px solid var(--mk-line);
  border-radius:var(--mk-r-lg);
  box-shadow:var(--mk-sh-1);
  padding:30px 26px;
  display:flex;
  flex-direction:column;
  gap:16px;
  transition:transform var(--mk-ease),box-shadow var(--mk-ease);
}
.mk-price-card:hover{transform:translateY(-2px);box-shadow:var(--mk-sh-2);}
.mk-price-card--best{
  border:2px solid var(--mk-primary);
  transform:translateY(-8px);
  box-shadow:var(--mk-sh-2);
}
.mk-price-card--best:hover{transform:translateY(-10px);}
.mk-badge-best{
  position:absolute;
  top:-13px;left:26px;
  background:var(--mk-accent);
  color:#fff;
  font-size:12px;
  font-weight:600;
  border-radius:999px;
  padding:4px 12px;
}
.mk-price-card h3{font-size:20px;}
.mk-price-amount{font-size:34px;font-weight:700;color:var(--mk-ink);line-height:1.2;}
.mk-price-amount small{font-size:13px;font-weight:500;color:var(--mk-muted);margin-left:6px;}
.mk-price-card ul{display:flex;flex-direction:column;gap:10px;margin:4px 0 6px;}
.mk-price-card ul li{
  position:relative;
  padding-left:24px;
  font-size:14px;
  color:var(--mk-body);
}
.mk-price-card ul li::before{
  content:"";
  position:absolute;left:0;top:6px;
  width:14px;height:14px;border-radius:50%;
  background:var(--mk-primary-soft);
  border:1px solid var(--mk-primary);
  background-image:linear-gradient(var(--mk-primary),var(--mk-primary));
  background-size:7px 2px;
  background-position:center;
  background-repeat:no-repeat;
}
.mk-price-card .mk-btn{margin-top:auto;}

/* ---------- 最新信息 ---------- */
.mk-post-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.mk-post-card{
  display:flex;
  flex-direction:column;
  background:var(--mk-surface);
  border:1px solid var(--mk-line);
  border-radius:14px;
  box-shadow:var(--mk-sh-1);
  overflow:hidden;
  color:inherit;
  transition:transform var(--mk-ease),box-shadow var(--mk-ease),border-color var(--mk-ease);
}
.mk-post-card:hover{transform:translateY(-2px);box-shadow:var(--mk-sh-2);border-color:#CBD8E6;color:inherit;}
.mk-post-cover{overflow:hidden;background:var(--mk-bg-alt);}
.mk-post-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--mk-ease);}
.mk-post-card:hover .mk-post-cover img{transform:scale(1.03);}
.mk-post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.mk-post-title{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--mk-ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.mk-post-card:hover .mk-post-title{color:var(--mk-primary);}
.mk-post-excerpt{
  font-size:14px;
  color:var(--mk-muted);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.mk-post-foot{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--mk-line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--mk-muted);
}
.mk-post-foot .mk-arrow{color:var(--mk-primary);font-weight:700;}
.mk-empty{
  border:1px dashed #CBD8E6;
  border-radius:16px;
  min-height:200px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
  text-align:center;
  color:var(--mk-muted);
  font-size:15px;
  padding:32px 20px;
  background:var(--mk-surface);
}

/* ---------- FAQ ---------- */
.mk-faq{max-width:880px;margin:0 auto;}
.mk-faq-item{
  background:var(--mk-surface);
  border:1px solid var(--mk-line);
  border-radius:var(--mk-r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--mk-ease),box-shadow var(--mk-ease);
}
.mk-faq-item:hover{border-color:#CBD8E6;}
.mk-faq-item.is-open{border-color:var(--mk-primary);box-shadow:var(--mk-sh-1);}
.mk-faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  min-height:56px;
  padding:12px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--mk-ink);
  position:relative;
  border-left:3px solid transparent;
  transition:color var(--mk-ease),border-color var(--mk-ease);
}
.mk-faq-q:hover{color:var(--mk-primary);}
.mk-faq-item.is-open .mk-faq-q{border-left-color:var(--mk-primary);color:var(--mk-primary);}
.mk-faq-icon{
  position:relative;
  flex:none;
  width:16px;height:16px;
}
.mk-faq-icon::before,
.mk-faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  border-radius:2px;
  transition:transform var(--mk-ease),opacity var(--mk-ease);
}
.mk-faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.mk-faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.mk-faq-item.is-open .mk-faq-icon::after{transform:rotate(90deg);opacity:0;}
.mk-faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.mk-faq-a p{
  padding:0 20px 20px 23px;
  font-size:15px;
  line-height:1.8;
  color:var(--mk-muted);
  margin:0;
}

/* ---------- CTA ---------- */
.mk-cta{
  background:var(--mk-bg-alt);
  border-top:1px solid var(--mk-line);
  border-bottom:1px solid var(--mk-line);
  padding:52px 0;
}
.mk-cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.mk-cta-inner h2{font-size:28px;margin-bottom:8px;}
.mk-cta-inner p{font-size:15px;color:var(--mk-muted);margin:0;}

/* ---------- 页脚 ---------- */
.mk-footer{background:var(--mk-night);color:#A9B8CB;padding:64px 0 0;}
.mk-footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:44px;
}
.mk-footer .mk-logo-text{color:#fff;}
.mk-footer-brand p{font-size:14px;line-height:1.8;color:#A9B8CB;margin:16px 0 14px;max-width:300px;}
.mk-footer-contact{font-size:14px;color:#A9B8CB;}
.mk-footer-contact strong{color:#fff;font-weight:600;}
.mk-footer h4{
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.8);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.mk-footer li{margin-bottom:10px;}
.mk-footer li a{font-size:14px;color:#A9B8CB;transition:color var(--mk-ease);}
.mk-footer li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.mk-footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8497AC;
}
.mk-footer-bottom a{color:#8497AC;}
.mk-footer-bottom a:hover{color:#fff;}

/* ---------- 返回顶部 ---------- */
.mk-top{
  position:fixed;
  right:20px;bottom:20px;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--mk-primary);
  color:#fff;
  display:none;
  align-items:center;
  justify-content:center;
  box-shadow:var(--mk-sh-2);
  z-index:100;
  transition:background var(--mk-ease),transform var(--mk-ease);
}
.mk-top:hover{background:var(--mk-primary-strong);transform:translateY(-2px);}
.mk-top.is-show{display:flex;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .mk-menu{gap:20px;}
  .mk-nav-left{gap:24px;}
}
@media (max-width:1023px){
  .mk-menu,.mk-nav-link{display:none;}
  .mk-burger{display:inline-flex;}
  .mk-hero{padding:44px 0 60px;}
  .mk-hero-grid{grid-template-columns:1fr;gap:40px;}
  .mk-hero h1{font-size:36px;}
  .mk-hero-sub{font-size:17px;}
  .mk-hero-figure{max-width:620px;}
  .mk-float-card{left:12px;bottom:-18px;}
  .mk-section{padding:64px 0;}
  .mk-h2{font-size:28px;}
  .mk-value-grid{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:26px;}
  .mk-value-item{padding:0 0 0 22px;}
  .mk-value-item:nth-child(odd){padding-left:0;border-left:0;}
  .mk-value-item:nth-child(even){border-left:1px solid var(--mk-line);}
  .mk-feature-grid{grid-template-columns:1fr;}
  .mk-case-grid{grid-template-columns:1fr;}
  .mk-scene{grid-template-columns:1fr;gap:28px;}
  .mk-scene + .mk-scene{margin-top:48px;}
  .mk-scene--reverse .mk-scene-media{order:2;}
  .mk-post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .mk-price-grid{grid-template-columns:1fr;gap:20px;padding-top:16px;}
  .mk-price-card--best{transform:none;}
  .mk-price-card--best:hover{transform:translateY(-2px);}
  .mk-footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .mk-cta-inner h2{font-size:24px;}
}
@media (max-width:639px){
  .mk-container{padding:0 20px;}
  .mk-nav-wrap{padding:0 20px;height:56px;}
  .mk-logo-text{font-size:17px;}
  .mk-nav-right{gap:8px;}
  .mk-hero{padding:34px 0 48px;}
  .mk-hero h1{font-size:30px;line-height:1.28;}
  .mk-hero-sub{font-size:16px;margin-bottom:22px;}
  .mk-hero-actions{gap:10px;margin-bottom:26px;}
  .mk-hero-actions .mk-btn{width:100%;}
  .mk-metrics{gap:16px 0;}
  .mk-metric{padding:0 16px;}
  .mk-metric:first-child{padding-left:0;}
  .mk-metric strong{font-size:20px;}
  .mk-float-card{position:static;margin-top:14px;min-width:0;box-shadow:var(--mk-sh-1);left:auto;bottom:auto;}
  .mk-section{padding:48px 0;}
  .mk-section-head{margin-bottom:26px;}
  .mk-h2{font-size:23px;}
  .mk-value-grid{grid-template-columns:1fr;row-gap:20px;}
  .mk-value-item{padding:0;border-left:0 !important;}
  .mk-value-item + .mk-value-item{border-top:1px solid var(--mk-line);padding-top:18px;}
  .mk-sub-grid{grid-template-columns:1fr;}
  .mk-post-grid{grid-template-columns:1fr;}
  .mk-scene-body h3{font-size:21px;}
  .mk-price-card{padding:26px 20px;}
  .mk-price-amount{font-size:30px;}
  .mk-faq-q{font-size:15px;padding:12px 16px;}
  .mk-faq-a p{padding:0 16px 18px 19px;font-size:14px;}
  .mk-cta{padding:40px 0;}
  .mk-cta-inner{flex-direction:column;align-items:flex-start;}
  .mk-cta-inner .mk-btn{width:100%;}
  .mk-footer{padding:48px 0 0;}
  .mk-footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .mk-footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .mk-case-num{font-size:24px;}
  .mk-top{right:16px;bottom:16px;}
}

/* roulang page: category1 */
:root{
  --mk-primary:#1F5DA8;
  --mk-primary-strong:#174A87;
  --mk-primary-soft:#E8F0FA;
  --mk-accent:#D08A2C;
  --mk-accent-soft:#FBF0DE;
  --mk-ink:#0F1B2B;
  --mk-body:#3C4B5E;
  --mk-muted:#6B7B90;
  --mk-line:#E2E8F0;
  --mk-bg:#F5F8FC;
  --mk-surface:#FFFFFF;
  --mk-bg-alt:#EDF3FA;
  --mk-night:#10233A;
  --mk-r-sm:8px;
  --mk-r-md:12px;
  --mk-r-lg:16px;
  --mk-r-xl:22px;
  --mk-sh-1:0 1px 2px rgba(15,27,43,.05),0 6px 16px rgba(15,27,43,.06);
  --mk-sh-2:0 2px 6px rgba(15,27,43,.07),0 14px 32px rgba(15,27,43,.09);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--mk-body);
  background:var(--mk-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--mk-ink);margin:0;font-weight:700;line-height:1.3}
p{margin:0 0 16px}
a{color:var(--mk-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--mk-primary-strong)}
img{max-width:100%;display:block}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
.mk-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.mk-section{padding:88px 0}
.mk-section--tight{padding:64px 0}
.mk-section--alt{background:var(--mk-bg-alt)}
.mk-section--white{background:var(--mk-surface)}
.mk-sec-head{margin-bottom:36px}
.mk-sec-head h2{font-size:30px;line-height:1.3;position:relative;padding-left:16px}
.mk-sec-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--mk-primary)}
.mk-sec-head p{margin:12px 0 0;font-size:15px;color:var(--mk-muted);max-width:720px}

/* 顶部导航 */
.mk-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--mk-line)}
.mk-header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.mk-header-left{display:flex;align-items:center;gap:36px;min-width:0}
.mk-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.mk-logo-mark{width:24px;height:24px;border-radius:6px;background:var(--mk-primary);display:inline-flex;align-items:center;justify-content:center}
.mk-logo-mark svg{width:16px;height:16px}
.mk-logo-text{font-size:18px;font-weight:700;color:var(--mk-ink);letter-spacing:-.01em;white-space:nowrap}
.mk-menu{display:flex;align-items:center;gap:26px}
.mk-menu a{position:relative;font-size:15px;font-weight:500;color:var(--mk-ink);padding:6px 0;white-space:nowrap}
.mk-menu a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:16px;background:var(--mk-primary);border-radius:1px;opacity:0;transition:width .22s ease,opacity .22s ease}
.mk-menu a:hover{color:var(--mk-primary)}
.mk-menu a:hover::after{opacity:1;width:100%}
.mk-menu a.is-active{color:var(--mk-primary)}
.mk-menu a.is-active::after{opacity:1;width:100%}
.mk-header-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.mk-icon-btn{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;background:transparent;border-radius:10px;color:var(--mk-body);cursor:pointer;transition:all .2s ease}
.mk-icon-btn:hover{background:var(--mk-primary-soft);color:var(--mk-primary)}
.mk-text-link{font-size:14px;color:var(--mk-muted);white-space:nowrap}
.mk-text-link:hover{color:var(--mk-primary)}
.mk-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border:1px solid transparent;border-radius:10px;font-size:15px;font-weight:600;line-height:1;cursor:pointer;transition:all .22s ease;text-align:center}
.mk-btn-primary{background:var(--mk-primary);color:#fff}
.mk-btn-primary:hover{background:var(--mk-primary-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--mk-sh-2)}
.mk-btn-primary:active{transform:translateY(0)}
.mk-btn-ghost{background:#fff;border-color:#CBD8E6;color:var(--mk-ink)}
.mk-btn-ghost:hover{border-color:var(--mk-primary);color:var(--mk-primary);transform:translateY(-1px);box-shadow:var(--mk-sh-2)}
.mk-btn-ghost:active{transform:translateY(0)}
.mk-btn-sm{height:40px;padding:0 16px;font-size:14px}
.mk-btn:focus-visible,.mk-icon-btn:focus-visible,.mk-menu a:focus-visible,.mk-burger:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--mk-primary);outline-offset:2px;border-radius:6px}
.mk-burger{display:none;width:40px;height:40px;border:1px solid var(--mk-line);background:#fff;border-radius:10px;cursor:pointer;align-items:center;justify-content:center;color:var(--mk-ink)}
.mk-burger span{display:block;width:16px;height:2px;background:currentColor;box-shadow:0 -5px 0 currentColor,0 5px 0 currentColor;border-radius:2px}

/* 抽屉 */
.mk-mask{position:fixed;inset:0;background:rgba(15,27,43,.42);opacity:0;visibility:hidden;transition:.25s ease;z-index:90}
.mk-mask.is-open{opacity:1;visibility:visible}
.mk-drawer{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:#fff;z-index:100;display:flex;flex-direction:column;transform:translateX(102%);transition:transform .28s ease;box-shadow:-8px 0 32px rgba(15,27,43,.14)}
.mk-drawer.is-open{transform:translateX(0)}
.mk-drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--mk-line)}
.mk-drawer-close{width:34px;height:34px;border-radius:8px;border:1px solid var(--mk-line);background:#fff;font-size:20px;line-height:1;color:var(--mk-muted);cursor:pointer}
.mk-drawer-close:hover{color:var(--mk-primary);border-color:var(--mk-primary)}
.mk-drawer-nav{flex:1 1 auto;overflow-y:auto;padding:8px 0}
.mk-drawer-nav a{display:block;padding:13px 20px;font-size:15px;color:var(--mk-ink);border-left:3px solid transparent}
.mk-drawer-nav a:hover{background:var(--mk-primary-soft);color:var(--mk-primary)}
.mk-drawer-nav a.is-active{color:var(--mk-primary);border-left-color:var(--mk-primary);background:var(--mk-primary-soft);font-weight:600}
.mk-drawer-cta{margin:16px 20px 22px}

/* 面包屑 */
.mk-crumb{font-size:13px;color:var(--mk-muted);margin-bottom:24px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.mk-crumb a{color:var(--mk-muted)}
.mk-crumb a:hover{color:var(--mk-primary)}
.mk-crumb span.sep{color:#B7C4D4}
.mk-crumb .cur{color:var(--mk-ink)}

/* hero */
.mk-hero{background:#fff;border-bottom:1px solid var(--mk-line);padding:48px 0 72px}
.mk-hero h1{font-size:42px;line-height:1.22;letter-spacing:-.01em;margin-bottom:20px}
.mk-hero .mk-lead{font-size:17px;line-height:1.85;color:var(--mk-body);max-width:620px;margin-bottom:26px}
.mk-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--mk-primary);background:var(--mk-primary-soft);border-radius:999px;padding:5px 12px;margin-bottom:18px}
.mk-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.mk-metrics{display:flex;flex-wrap:wrap;gap:0}
.mk-metric{padding:0 24px;border-left:1px solid var(--mk-line)}
.mk-metric:first-child{padding-left:0;border-left:0}
.mk-metric strong{display:block;font-size:24px;color:var(--mk-primary);line-height:1.2}
.mk-metric span{font-size:13px;color:var(--mk-muted)}
.mk-hero-visual{position:relative;border-radius:var(--mk-r-lg);overflow:hidden;border:1px solid var(--mk-line);box-shadow:var(--mk-sh-1)}
.mk-hero-visual img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.mk-float-card{position:absolute;left:18px;right:18px;bottom:18px;background:#fff;border-radius:var(--mk-r-md);padding:14px 16px;box-shadow:var(--mk-sh-1);border:1px solid var(--mk-line)}
.mk-float-card b{display:block;font-size:14px;color:var(--mk-ink);margin-bottom:4px}
.mk-float-card small{font-size:12.5px;color:var(--mk-muted);line-height:1.6;display:block}

/* 时间线 */
.mk-timeline{position:relative;padding:4px 0 0}
.mk-timeline::before{content:"";position:absolute;left:23px;top:14px;bottom:56px;width:2px;background:var(--mk-line)}
.mk-step{position:relative;display:flex;gap:20px;padding-bottom:34px}
.mk-step:last-child{padding-bottom:0}
.mk-step-num{position:relative;z-index:1;flex:0 0 48px;width:48px;height:48px;border-radius:50%;background:var(--mk-primary-soft);border:2px solid #fff;color:var(--mk-primary);font-weight:700;font-size:16px;display:flex;align-items:center;justify-content:center}
.mk-step-main{flex:1 1 auto;min-width:0;padding-top:2px}
.mk-step-main h3{font-size:20px;margin-bottom:8px}
.mk-step-main p{font-size:15px;margin-bottom:12px}
.mk-step-tag{display:inline-flex;align-items:center;font-size:12px;color:var(--mk-primary);background:var(--mk-primary-soft);border-radius:999px;padding:3px 10px}

/* 侧栏提示卡 */
.mk-aside{position:sticky;top:88px}
.mk-tip-card{background:var(--mk-primary-soft);border-radius:var(--mk-r-lg);padding:24px;border:1px solid #D5E3F5}
.mk-tip-card h3{font-size:17px;margin-bottom:14px}
.mk-tip-list li{position:relative;padding-left:20px;font-size:14px;line-height:1.7;color:var(--mk-body);margin-bottom:12px}
.mk-tip-list li:last-child{margin-bottom:0}
.mk-tip-list li::before{content:"";position:absolute;left:2px;top:9px;width:7px;height:7px;border-radius:50%;background:var(--mk-primary)}
.mk-tip-card .mk-link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--mk-primary);margin-top:16px}
.mk-tip-card .mk-link-arrow:hover{color:var(--mk-primary-strong);gap:10px}
.mk-side-card{background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);padding:22px;margin-top:20px;box-shadow:var(--mk-sh-1)}
.mk-side-card h4{font-size:15px;margin-bottom:8px}
.mk-side-card p{font-size:13.5px;color:var(--mk-muted);margin:0}

/* 卡片 */
.mk-card{background:#fff;border:1px solid var(--mk-line);border-radius:14px;padding:24px;box-shadow:var(--mk-sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;height:100%}
.mk-card:hover{transform:translateY(-2px);box-shadow:var(--mk-sh-2);border-color:#CBD8E6}
.mk-card-ico{width:40px;height:40px;border-radius:10px;background:var(--mk-primary-soft);color:var(--mk-primary);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.mk-card-ico svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.mk-card h3{font-size:17px;margin-bottom:8px}
.mk-card p{font-size:14px;color:var(--mk-body);margin:0}
.mk-card-num{display:inline-block;font-size:13px;font-weight:700;color:var(--mk-accent);letter-spacing:.04em;margin-bottom:10px}

/* 手风琴 */
.mk-acc{background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-md);margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.mk-acc.is-open{border-color:#C6D9F0;box-shadow:var(--mk-sh-1)}
.mk-acc-head{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:transparent;border:0;padding:0 20px;min-height:56px;text-align:left;font-size:16px;font-weight:600;color:var(--mk-ink);cursor:pointer;line-height:1.5}
.mk-acc-head:hover{color:var(--mk-primary)}
.mk-acc-ico{position:relative;flex:0 0 16px;width:16px;height:16px}
.mk-acc-ico::before,.mk-acc-ico::after{content:"";position:absolute;background:var(--mk-primary);border-radius:1px;transition:transform .22s ease,opacity .22s ease}
.mk-acc-ico::before{left:0;top:7px;width:16px;height:2px}
.mk-acc-ico::after{left:7px;top:0;width:2px;height:16px}
.mk-acc.is-open .mk-acc-ico::after{transform:scaleY(0);opacity:0}
.mk-acc-body{max-height:0;overflow:hidden;transition:max-height .3s ease}
.mk-acc-body-inner{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--mk-body);border-left:3px solid var(--mk-primary);margin-left:0}
.mk-acc-body-inner p:last-child{margin-bottom:0}

/* 相关入口 */
.mk-linklist{border-top:1px solid var(--mk-line)}
.mk-linkrow{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 8px;border-bottom:1px solid var(--mk-line);transition:background .2s ease,padding-left .2s ease}
.mk-linkrow:hover{background:var(--mk-primary-soft);padding-left:16px}
.mk-linkrow .mk-lr-main{min-width:0}
.mk-linkrow h3{font-size:16px;margin-bottom:4px}
.mk-linkrow p{font-size:13.5px;color:var(--mk-muted);margin:0}
.mk-linkrow .mk-lr-go{flex:0 0 auto;color:var(--mk-primary);font-size:20px;line-height:1}
.mk-tag{display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:var(--mk-primary);background:var(--mk-primary-soft);border-radius:999px;padding:3px 10px;margin-right:10px}
.mk-tag--accent{color:var(--mk-accent);background:var(--mk-accent-soft)}

/* CTA */
.mk-cta{background:var(--mk-bg-alt);border-top:1px solid var(--mk-line);border-bottom:1px solid var(--mk-line);padding:44px 0}
.mk-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.mk-cta h2{font-size:24px;margin-bottom:8px}
.mk-cta p{font-size:15px;color:var(--mk-muted);margin:0}

/* 页脚 */
.mk-footer{background:var(--mk-night);color:#A9B8CB;padding:64px 0 0;margin-top:0}
.mk-footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px}
.mk-footer h4{font-size:14px;color:rgba(255,255,255,.82);margin-bottom:16px;font-weight:600}
.mk-footer ul li{margin-bottom:10px}
.mk-footer a{color:#A9B8CB;font-size:14px}
.mk-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.mk-footer-brand .mk-logo-text{color:#fff}
.mk-footer-brand p{font-size:14px;line-height:1.8;color:#A9B8CB;margin:16px 0 0;max-width:400px}
.mk-footer-contact{margin-top:12px !important}
.mk-footer-contact strong{color:rgba(255,255,255,.82)}
.mk-footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7E90A8}

@media (min-width:640px){
  .mk-footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:1024px){
  .mk-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
  .mk-footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr}
}
@media (max-width:1119px){
  .mk-menu,.mk-text-link{display:none}
  .mk-burger{display:inline-flex}
}
@media (max-width:1023px){
  .mk-hero{padding:40px 0 56px}
  .mk-hero h1{font-size:34px}
  .mk-hero-grid{display:block}
  .mk-hero-visual{margin-top:32px}
  .mk-aside{position:static;margin-top:12px}
  .mk-section{padding:64px 0}
  .mk-section--tight{padding:52px 0}
  .mk-sec-head h2{font-size:26px}
}
@media (max-width:767px){
  .mk-container{padding:0 20px}
  .mk-header-inner{height:56px}
  .mk-hero h1{font-size:30px}
  .mk-hero .mk-lead{font-size:16px}
  .mk-hero-actions .mk-btn{width:100%}
  .mk-metric{padding:0 16px}
  .mk-metric strong{font-size:20px}
  .mk-section{padding:46px 0}
  .mk-section--tight{padding:40px 0}
  .mk-sec-head{margin-bottom:26px}
  .mk-sec-head h2{font-size:23px}
  .mk-step{gap:14px}
  .mk-step-num{flex:0 0 40px;width:40px;height:40px;font-size:14px}
  .mk-timeline::before{left:19px;bottom:44px}
  .mk-step-main h3{font-size:17.5px}
  .mk-step-main p{font-size:14.5px}
  .mk-cta-inner{flex-direction:column;align-items:flex-start}
  .mk-cta .mk-btn{width:100%}
  .mk-acc-head{font-size:15px;padding:0 16px}
  .mk-acc-body-inner{padding:0 16px 16px;font-size:14.5px}
  .mk-float-card{position:static;left:auto;right:auto;bottom:auto;border-radius:0;border:0;border-top:1px solid var(--mk-line);box-shadow:none;padding:14px 16px}
}

/* roulang page: article */
:root{
  --mk-primary:#1F5DA8;
  --mk-primary-strong:#174A87;
  --mk-primary-soft:#E8F0FA;
  --mk-accent:#D08A2C;
  --mk-accent-soft:#FBF0DE;
  --mk-ink:#0F1B2B;
  --mk-body:#3C4B5E;
  --mk-muted:#6B7B90;
  --mk-line:#E2E8F0;
  --mk-bg:#F5F8FC;
  --mk-surface:#FFFFFF;
  --mk-bg-alt:#EDF3FA;
  --mk-night:#10233A;
  --mk-r-sm:8px;
  --mk-r-md:12px;
  --mk-r-lg:16px;
  --mk-r-xl:22px;
  --mk-sh-1:0 1px 2px rgba(15,27,43,.05),0 6px 16px rgba(15,27,43,.06);
  --mk-sh-2:0 2px 6px rgba(15,27,43,.07),0 14px 32px rgba(15,27,43,.09);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--mk-body);
  background:var(--mk-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--mk-ink);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--mk-primary-soft);color:var(--mk-primary-strong)}
:focus-visible{outline:2px solid var(--mk-primary);outline-offset:2px}
.mk-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.mk-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--mk-line)}
.mk-header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:64px}
.mk-header-left{display:flex;align-items:center;gap:34px;min-width:0}
.mk-header-right{display:flex;align-items:center;gap:14px;flex:none}
.mk-logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.mk-logo-mark{width:24px;height:24px;border-radius:6px;background:var(--mk-primary);display:inline-flex;align-items:center;justify-content:center;flex:none}
.mk-logo-mark svg{width:16px;height:16px;display:block}
.mk-logo-text{font-size:18px;font-weight:700;color:var(--mk-ink);letter-spacing:-.01em;white-space:nowrap}
.mk-menu{display:flex;align-items:center;gap:26px}
.mk-menu a{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--mk-ink);white-space:nowrap;transition:color .2s ease}
.mk-menu a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--mk-primary);transition:width .22s ease}
.mk-menu a:hover,.mk-menu a:focus-visible{color:var(--mk-primary)}
.mk-menu a:hover::after,.mk-menu a:focus-visible::after{width:100%}
.mk-menu a.is-active{color:var(--mk-primary)}
.mk-menu a.is-active::after{width:16px}
.mk-icon-btn{width:40px;height:40px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;color:var(--mk-body);transition:background-color .2s ease,color .2s ease}
.mk-icon-btn:hover{background:var(--mk-primary-soft);color:var(--mk-primary)}
.mk-icon-btn svg{width:18px;height:18px;display:block}
.mk-textlink{font-size:14px;color:var(--mk-muted);transition:color .2s ease}
.mk-textlink:hover{color:var(--mk-primary)}
.mk-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:10px;border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;text-align:center;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease}
.mk-btn-primary{background:var(--mk-primary);color:#fff;box-shadow:0 1px 2px rgba(15,27,43,.08)}
.mk-btn-primary:hover{background:var(--mk-primary-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--mk-sh-2)}
.mk-btn-primary:active{transform:translateY(0);box-shadow:var(--mk-sh-1)}
.mk-btn-ghost{background:#fff;color:var(--mk-ink);border-color:#CBD8E6}
.mk-btn-ghost:hover{color:var(--mk-primary);border-color:var(--mk-primary);transform:translateY(-1px);box-shadow:var(--mk-sh-1)}
.mk-btn-sm{height:40px;padding:0 16px;font-size:14px}
.mk-burger{display:none;width:40px;height:40px;border-radius:10px;align-items:center;justify-content:center;color:var(--mk-ink);transition:background-color .2s ease}
.mk-burger:hover{background:var(--mk-primary-soft)}
.mk-burger svg{width:20px;height:20px;display:block}
.mk-drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:200;background:#fff;display:flex;flex-direction:column;padding:20px 22px 24px;box-shadow:-8px 0 32px rgba(15,27,43,.14);transform:translateX(102%);pointer-events:none;transition:transform .28s ease}
.mk-drawer.is-open{transform:translateX(0);pointer-events:auto}
.mk-drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--mk-line)}
.mk-drawer-head span{font-size:13px;letter-spacing:.08em;color:var(--mk-muted)}
.mk-drawer-close{width:34px;height:34px;border-radius:8px;font-size:22px;line-height:1;color:var(--mk-muted);display:inline-flex;align-items:center;justify-content:center}
.mk-drawer-close:hover{background:var(--mk-bg-alt);color:var(--mk-ink)}
.mk-drawer-nav{display:flex;flex-direction:column;margin:8px 0 20px;flex:1}
.mk-drawer-nav a{display:flex;align-items:center;min-height:48px;padding:0 10px;font-size:15px;font-weight:500;color:var(--mk-ink);border-left:3px solid transparent;border-bottom:1px solid #F1F5FA}
.mk-drawer-nav a:hover{color:var(--mk-primary);background:var(--mk-bg-alt)}
.mk-drawer-nav a.is-active{color:var(--mk-primary);border-left-color:var(--mk-primary);background:var(--mk-primary-soft)}
.mk-drawer-cta{width:100%}
.mk-overlay{position:fixed;inset:0;z-index:150;background:rgba(15,27,43,.44);opacity:0;pointer-events:none;transition:opacity .25s ease}
.mk-overlay.is-open{opacity:1;pointer-events:auto}
.mk-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:26px 0 0;font-size:13px;color:var(--mk-muted)}
.mk-breadcrumb a{transition:color .2s ease}
.mk-breadcrumb a:hover{color:var(--mk-primary)}
.mk-crumb-sep{color:#B7C4D4}
.mk-breadcrumb .mk-crumb-current{color:var(--mk-ink);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mk-layout{padding:22px 0 0}
.mk-article-head{max-width:760px;padding-bottom:22px;border-bottom:1px solid var(--mk-line);margin-bottom:30px}
.mk-article-head h1{font-size:34px;line-height:1.28;word-break:break-word}
.mk-article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--mk-muted)}
.mk-dot{width:3px;height:3px;border-radius:50%;background:#C3CFDD;display:inline-block;flex:none}
.mk-badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;background:var(--mk-primary-soft);color:var(--mk-primary);font-size:12px;font-weight:600;line-height:1.7;white-space:nowrap}
.mk-badge-accent{background:var(--mk-accent-soft);color:#95611B}
.mk-article-body{max-width:760px;font-size:16px;line-height:1.85;color:var(--mk-body);word-break:break-word}
.mk-article-body h2{font-size:26px;line-height:1.3;margin:40px 0 16px;padding-left:12px;border-left:4px solid var(--mk-primary);scroll-margin-top:88px}
.mk-article-body h3{font-size:20px;line-height:1.4;margin:28px 0 12px;color:var(--mk-ink);scroll-margin-top:88px}
.mk-article-body h4{font-size:17px;line-height:1.5;margin:22px 0 10px;color:var(--mk-ink)}
.mk-article-body p{margin:0 0 1.1em}
.mk-article-body ul,.mk-article-body ol{margin:0 0 1.1em;padding-left:1.25em;list-style:disc}
.mk-article-body ol{list-style:decimal}
.mk-article-body li{margin-bottom:.5em}
.mk-article-body ul li::marker{color:var(--mk-primary)}
.mk-article-body ol li::marker{color:var(--mk-primary);font-weight:600}
.mk-article-body blockquote{margin:24px 0;padding:16px 20px;background:var(--mk-bg-alt);border-left:4px solid var(--mk-primary);border-radius:0 var(--mk-r-md) var(--mk-r-md) 0;color:var(--mk-body)}
.mk-article-body blockquote p:last-child{margin-bottom:0}
.mk-article-body a{color:var(--mk-primary);text-decoration:underline;text-underline-offset:3px}
.mk-article-body a:hover{color:var(--mk-primary-strong)}
.mk-article-body img{border-radius:var(--mk-r-md);margin:24px auto}
.mk-article-body figure{margin:24px 0}
.mk-article-body figcaption{font-size:13px;color:var(--mk-muted);text-align:center;margin-top:10px}
.mk-article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.mk-article-body th,.mk-article-body td{border:1px solid var(--mk-line);padding:10px 12px;text-align:left;vertical-align:top}
.mk-article-body th{background:var(--mk-bg-alt);color:var(--mk-ink);font-weight:600}
.mk-article-body strong{color:var(--mk-ink)}
.mk-article-body hr{border:0;border-top:1px solid var(--mk-line);margin:32px 0}
.mk-empty{border:1px dashed #CBD8E6;border-radius:var(--mk-r-lg);background:#fff;padding:56px 24px;text-align:center}
.mk-empty-title{font-size:20px;font-weight:700;color:var(--mk-ink);margin-bottom:10px}
.mk-empty-desc{font-size:15px;color:var(--mk-muted);margin-bottom:24px}
.mk-aside-inner{position:sticky;top:88px}
.mk-side-card{background:var(--mk-surface);border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);padding:20px 22px;box-shadow:var(--mk-sh-1);margin-bottom:20px}
.mk-side-card-soft{background:var(--mk-primary-soft);border-color:#CFE1F6;box-shadow:none}
.mk-side-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--mk-ink);margin-bottom:12px}
.mk-side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--mk-primary);display:inline-block}
.mk-side-card-soft .mk-side-title::before{background:var(--mk-accent)}
.mk-side-text{font-size:14px;line-height:1.8;color:var(--mk-body)}
.mk-side-list li a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;font-size:14px;color:var(--mk-body);border-bottom:1px dashed var(--mk-line);transition:color .2s ease,padding-left .2s ease}
.mk-side-list li:last-child a{border-bottom:0}
.mk-side-list li a:hover{color:var(--mk-primary);padding-left:4px}
.mk-side-list .mk-arrow{color:#B7C4D4;font-size:13px}
.mk-side-steps li{display:flex;gap:10px;padding:8px 0;font-size:14px;line-height:1.7;color:var(--mk-body)}
.mk-side-steps .mk-num{flex:none;font-weight:700;color:var(--mk-primary);font-size:13px;line-height:1.9}
.mk-rec-section{margin:20px 0 72px;padding-top:36px;border-top:1px solid var(--mk-line)}
.mk-rec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:24px}
.mk-rec-head h2{font-size:24px;line-height:1.3}
.mk-rec-head p{font-size:14px;color:var(--mk-muted);margin-top:6px}
.mk-rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.mk-rec-card{display:flex;flex-direction:column;overflow:hidden;background:var(--mk-surface);border:1px solid var(--mk-line);border-radius:var(--mk-r-md);box-shadow:var(--mk-sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.mk-rec-card:hover{transform:translateY(-2px);box-shadow:var(--mk-sh-2);border-color:#CBD8E6}
.mk-rec-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--mk-bg-alt)}
.mk-rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.mk-rec-card:hover .mk-rec-thumb img{transform:scale(1.03)}
.mk-rec-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px}
.mk-rec-body h3{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mk-rec-body p{font-size:14px;line-height:1.7;color:var(--mk-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mk-rec-more{margin-top:12px;font-size:13px;font-weight:600;color:var(--mk-primary)}
.mk-cta{background:var(--mk-bg-alt);border-top:1px solid var(--mk-line);border-bottom:1px solid var(--mk-line);padding:56px 0}
.mk-cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.mk-cta h2{font-size:26px;line-height:1.32}
.mk-cta p{font-size:15px;color:var(--mk-muted);margin-top:10px;max-width:620px}
.mk-footer{background:var(--mk-night);color:#A9B8CB;padding:64px 0 0}
.mk-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px 32px}
.mk-footer h4{font-size:14px;font-weight:600;color:rgba(255,255,255,.86);margin-bottom:16px;letter-spacing:.02em}
.mk-footer .mk-logo-text{color:#fff}
.mk-footer .mk-logo-mark{background:var(--mk-primary)}
.mk-footer-brand p{font-size:14px;line-height:1.8;color:#A9B8CB;margin-top:16px;max-width:360px}
.mk-footer-contact{margin-top:14px!important;font-size:14px}
.mk-footer-contact strong{color:rgba(255,255,255,.86);font-weight:600}
.mk-footer ul li{margin-bottom:10px}
.mk-footer ul li a{font-size:14px;color:#A9B8CB;transition:color .2s ease}
.mk-footer ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.mk-footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;margin-top:48px;padding:18px 0 22px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#8A9BB0}
.mk-footer-bottom a{color:#A9B8CB;text-decoration:underline;text-underline-offset:3px}
.mk-footer-bottom a:hover{color:#fff}
.mk-top{position:fixed;right:20px;bottom:24px;z-index:80;width:44px;height:44px;border-radius:12px;background:#fff;color:var(--mk-primary);border:1px solid var(--mk-line);box-shadow:var(--mk-sh-1);display:inline-flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transform:translateY(8px);transition:opacity .22s ease,transform .22s ease}
.mk-top.is-show{opacity:1;pointer-events:auto;transform:translateY(0)}
.mk-top:hover{box-shadow:var(--mk-sh-2);color:var(--mk-primary-strong)}
.mk-top svg{width:18px;height:18px;display:block}
@media (max-width:1099px){
  .mk-menu{gap:18px}
  .mk-menu a{font-size:14px}
  .mk-header-left{gap:22px}
}
@media (max-width:1023px){
  .mk-menu,.mk-textlink,.mk-icon-btn{display:none}
  .mk-burger{display:inline-flex}
  .mk-header-inner{min-height:60px}
  .mk-article-head h1{font-size:29px}
  .mk-aside-inner{position:static;margin-top:36px;display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .mk-side-card{margin-bottom:0}
  .mk-rec-grid{grid-template-columns:repeat(2,1fr)}
  .mk-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .mk-cta{padding:48px 0}
}
@media (max-width:767px){
  .mk-container{padding:0 20px}
  .mk-layout{padding-top:16px}
  .mk-article-head h1{font-size:26px;line-height:1.32}
  .mk-article-body h2{font-size:22px;margin:34px 0 14px}
  .mk-article-body h3{font-size:18px}
  .mk-article-body{font-size:16px}
  .mk-article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .mk-cta h2{font-size:22px}
  .mk-cta-inner{flex-direction:column;align-items:flex-start}
  .mk-cta .mk-btn{width:100%}
  .mk-footer{padding-top:48px}
  .mk-footer-grid{grid-template-columns:1fr;gap:28px}
  .mk-footer-bottom{margin-top:32px}
}
@media (max-width:639px){
  .mk-header-right .mk-btn-sm{display:none}
  .mk-logo-text{font-size:17px}
  .mk-rec-grid{grid-template-columns:1fr}
  .mk-aside-inner{grid-template-columns:1fr}
  .mk-breadcrumb{padding-top:18px}
  .mk-rec-section{margin-bottom:56px}
}

/* roulang page: category3 */
:root{
  --mk-primary:#1F5DA8;
  --mk-primary-strong:#174A87;
  --mk-primary-soft:#E8F0FA;
  --mk-accent:#D08A2C;
  --mk-accent-soft:#FBF0DE;
  --mk-ink:#0F1B2B;
  --mk-body:#3C4B5E;
  --mk-muted:#6B7B90;
  --mk-line:#E2E8F0;
  --mk-bg:#F5F8FC;
  --mk-surface:#FFFFFF;
  --mk-bg-alt:#EDF3FA;
  --mk-night:#10233A;
  --mk-r-sm:8px;
  --mk-r-md:12px;
  --mk-r-lg:16px;
  --mk-r-xl:22px;
  --mk-sh-1:0 1px 2px rgba(15,27,43,.05),0 6px 16px rgba(15,27,43,.06);
  --mk-sh-2:0 2px 6px rgba(15,27,43,.07),0 14px 32px rgba(15,27,43,.09);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--mk-body);
  background:var(--mk-bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--mk-primary);text-decoration:none;}
a:hover{color:var(--mk-primary-strong);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--mk-primary);outline-offset:2px;}
.mk-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.mk-section{padding:88px 0;}
.mk-section--alt{background:var(--mk-bg-alt);}
.mk-section-head{max-width:760px;margin-bottom:40px;}
.mk-section-head h2{
  font-size:32px;line-height:1.3;font-weight:700;color:var(--mk-ink);
  letter-spacing:-0.01em;position:relative;padding-left:16px;
}
.mk-section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--mk-primary);
}
.mk-section-head p{margin-top:14px;color:var(--mk-muted);font-size:15px;}
.mk-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--mk-primary);
  background:var(--mk-primary-soft);border-radius:999px;padding:5px 14px;
  margin-bottom:16px;letter-spacing:.02em;
}

/* ===== 顶部导航 ===== */
.mk-header{
  position:sticky;top:0;z-index:80;
  background:#FFFFFF;border-bottom:1px solid var(--mk-line);
}
.mk-header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:64px;
}
.mk-nav-left{display:flex;align-items:center;gap:34px;flex:1 1 auto;min-width:0;}
.mk-nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.mk-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.mk-logo-mark{
  width:24px;height:24px;border-radius:6px;background:var(--mk-primary);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.mk-logo-mark svg{width:16px;height:16px;display:block;}
.mk-logo-text{font-size:18px;font-weight:700;color:var(--mk-ink);letter-spacing:-0.01em;white-space:nowrap;}
.mk-menu{display:flex;align-items:center;gap:26px;}
.mk-menu a{
  position:relative;display:inline-block;padding:20px 0;
  font-size:15px;font-weight:500;color:var(--mk-ink);
  transition:color .2s ease;
}
.mk-menu a::after{
  content:"";position:absolute;left:0;bottom:12px;height:2px;width:16px;
  background:var(--mk-primary);opacity:0;transition:width .22s ease,opacity .22s ease;
}
.mk-menu a:hover{color:var(--mk-primary);}
.mk-menu a:hover::after{width:100%;opacity:1;}
.mk-menu a.is-active{color:var(--mk-primary);}
.mk-menu a.is-active::after{width:16px;opacity:1;}
.mk-search{
  width:40px;height:40px;border-radius:10px;border:1px solid transparent;
  background:transparent;color:var(--mk-ink);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background-color .2s ease,color .2s ease;
}
.mk-search:hover{background:var(--mk-primary-soft);color:var(--mk-primary);}
.mk-search svg{width:18px;height:18px;}
.mk-nav-link{font-size:14px;color:var(--mk-muted);white-space:nowrap;transition:color .2s ease;}
.mk-nav-link:hover{color:var(--mk-primary);}
.mk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:10px;
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.mk-btn-primary{background:var(--mk-primary);color:#fff;}
.mk-btn-primary:hover{background:var(--mk-primary-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--mk-sh-2);}
.mk-btn-primary:active{transform:translateY(0);box-shadow:none;}
.mk-btn-ghost{background:#fff;border-color:#CBD8E6;color:var(--mk-ink);}
.mk-btn-ghost:hover{border-color:var(--mk-primary);color:var(--mk-primary);transform:translateY(-1px);box-shadow:var(--mk-sh-1);}
.mk-btn-ghost:active{transform:translateY(0);box-shadow:none;}
.mk-btn-sm{height:40px;padding:0 18px;font-size:14px;}
.mk-btn-block{width:100%;}
.mk-burger{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--mk-line);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.mk-burger span{display:block;width:18px;height:2px;background:var(--mk-ink);position:relative;}
.mk-burger span::before,.mk-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--mk-ink);
}
.mk-burger span::before{top:-6px;}
.mk-burger span::after{top:6px;}
.mk-drawer{
  display:none;background:#fff;border-top:1px solid var(--mk-line);
  padding:12px 24px 24px;
}
.mk-drawer nav{display:flex;flex-direction:column;}
.mk-drawer nav a{
  display:flex;align-items:center;height:48px;padding-left:12px;
  font-size:15px;font-weight:500;color:var(--mk-ink);
  border-bottom:1px solid var(--mk-line);
}
.mk-drawer nav a.is-active{color:var(--mk-primary);box-shadow:inset 3px 0 0 var(--mk-primary);}
.mk-drawer .mk-btn{margin-top:18px;}
.mk-header.is-open .mk-drawer{display:block;}

/* ===== 面包屑 ===== */
.mk-crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--mk-muted);padding:22px 0 0;
}
.mk-crumbs a{color:var(--mk-muted);}
.mk-crumbs a:hover{color:var(--mk-primary);}
.mk-crumbs span{color:#B9C6D6;}
.mk-crumbs em{font-style:normal;color:var(--mk-ink);}

/* ===== 页首 ===== */
.mk-page-hero{padding-bottom:8px;background:linear-gradient(180deg,#FFFFFF 0%,var(--mk-bg) 100%);}
.mk-page-hero-grid{
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
  padding:40px 0 64px;
}
.mk-page-hero-copy h1{
  font-size:44px;line-height:1.22;font-weight:700;color:var(--mk-ink);
  letter-spacing:-0.01em;margin:14px 0 18px;
}
.mk-page-hero-copy > p{font-size:17px;line-height:1.8;color:var(--mk-body);max-width:560px;}
.mk-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.mk-metric-line{
  display:flex;flex-wrap:wrap;gap:0;margin-top:34px;
  border-top:1px solid var(--mk-line);padding-top:22px;
}
.mk-metric-line li{
  padding:0 26px;border-left:1px solid var(--mk-line);
  display:flex;flex-direction:column;gap:2px;min-width:112px;
}
.mk-metric-line li:first-child{padding-left:0;border-left:0;}
.mk-metric-line strong{font-size:24px;font-weight:700;color:var(--mk-primary);line-height:1.2;}
.mk-metric-line span{font-size:13px;color:var(--mk-muted);}
.mk-page-hero-media{position:relative;}
.mk-page-hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--mk-r-lg);box-shadow:var(--mk-sh-1);
}
.mk-float-card{
  position:absolute;left:-24px;bottom:-26px;max-width:300px;
  background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-md);
  padding:16px 18px;box-shadow:var(--mk-sh-2);
}
.mk-float-label{
  display:inline-block;font-size:12px;font-weight:600;color:var(--mk-accent);
  background:var(--mk-accent-soft);border-radius:999px;padding:2px 10px;margin-bottom:8px;
}
.mk-float-card p{font-size:13px;line-height:1.65;color:var(--mk-body);}

/* ===== 引导段 ===== */
.mk-lead{
  border-left:4px solid var(--mk-primary);
  background:#fff;border-radius:0 var(--mk-r-md) var(--mk-r-md) 0;
  padding:24px 28px;box-shadow:var(--mk-sh-1);
  font-size:16px;line-height:1.85;color:var(--mk-body);
}
.mk-lead strong{color:var(--mk-ink);font-weight:600;}

/* ===== 交错图文 ===== */
.mk-split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;
}
.mk-split + .mk-split{border-top:1px solid var(--mk-line);}
.mk-split.is-reverse .mk-split-copy{order:2;}
.mk-split.is-reverse .mk-split-media{order:1;}
.mk-split-copy .mk-step{
  display:inline-block;font-size:20px;font-weight:700;color:var(--mk-accent);
  letter-spacing:.04em;margin-bottom:10px;
}
.mk-split-copy h2{
  font-size:28px;line-height:1.32;font-weight:700;color:var(--mk-ink);
  letter-spacing:-0.01em;margin-bottom:16px;
}
.mk-split-copy p{font-size:16px;line-height:1.8;color:var(--mk-body);margin-bottom:14px;}
.mk-check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.mk-check-list li{
  position:relative;padding-left:30px;font-size:15px;line-height:1.7;color:var(--mk-body);
}
.mk-check-list li::before{
  content:"";position:absolute;left:0;top:6px;width:16px;height:16px;border-radius:50%;
  background:var(--mk-primary-soft);
}
.mk-check-list li::after{
  content:"";position:absolute;left:4px;top:10px;width:7px;height:4px;
  border-left:2px solid var(--mk-primary);border-bottom:2px solid var(--mk-primary);
  transform:rotate(-45deg);
}
.mk-link-arrow{
  display:inline-flex;align-items:center;gap:6px;margin-top:22px;
  font-size:15px;font-weight:600;color:var(--mk-primary);
  border-bottom:2px solid transparent;transition:border-color .2s ease;
}
.mk-link-arrow:hover{border-bottom-color:var(--mk-primary);}
.mk-split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--mk-r-lg);box-shadow:var(--mk-sh-1);
  transition:transform .3s ease,box-shadow .3s ease;
}
.mk-split-media img:hover{transform:scale(1.015);box-shadow:var(--mk-sh-2);}

/* ===== 阻碍清单 ===== */
.mk-blocker-list{border-top:1px solid var(--mk-line);}
.mk-blocker-item{
  display:grid;grid-template-columns:56px 1fr 1.3fr;gap:24px;align-items:start;
  padding:24px 12px;border-bottom:1px solid var(--mk-line);
  transition:background-color .2s ease;
}
.mk-blocker-item:hover{background:var(--mk-primary-soft);}
.mk-blocker-num{
  font-size:20px;font-weight:700;color:var(--mk-primary);line-height:1.4;
}
.mk-blocker-item h3{font-size:17px;font-weight:600;color:var(--mk-ink);line-height:1.6;}
.mk-blocker-item p{font-size:15px;line-height:1.75;color:var(--mk-muted);}

/* ===== FAQ ===== */
.mk-faq-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:48px;align-items:start;}
.mk-faq-aside{position:sticky;top:96px;}
.mk-faq-aside img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--mk-r-lg);
  box-shadow:var(--mk-sh-1);margin-bottom:22px;
}
.mk-faq-aside h3{font-size:20px;font-weight:700;color:var(--mk-ink);margin-bottom:10px;}
.mk-faq-aside p{font-size:15px;line-height:1.8;color:var(--mk-muted);}
.mk-faq-item{
  background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-md);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.mk-faq-item:hover{border-color:#C3D5EA;}
.mk-faq-item.is-open{border-color:var(--mk-primary);box-shadow:inset 3px 0 0 var(--mk-primary);}
.mk-faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:12px 20px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--mk-ink);cursor:pointer;
  transition:color .2s ease;
}
.mk-faq-q:hover{color:var(--mk-primary);}
.mk-faq-item.is-open .mk-faq-q{color:var(--mk-primary);}
.mk-faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto;}
.mk-faq-icon::before,.mk-faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:1px;
  transition:transform .25s ease,opacity .25s ease;
}
.mk-faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.mk-faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.mk-faq-item.is-open .mk-faq-icon::after{transform:scaleY(0);opacity:0;}
.mk-faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.mk-faq-item.is-open .mk-faq-a{max-height:360px;}
.mk-faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--mk-muted);}

/* ===== 相关入口 ===== */
.mk-entry-list{
  display:grid;grid-template-columns:1fr 1fr;gap:0 40px;
  border-top:1px solid var(--mk-line);margin-top:8px;
}
.mk-entry-list a{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 8px;border-bottom:1px solid var(--mk-line);
  color:var(--mk-ink);font-size:16px;font-weight:500;
  transition:background-color .2s ease,color .2s ease,padding-left .2s ease;
}
.mk-entry-list a:hover{background:var(--mk-primary-soft);color:var(--mk-primary);padding-left:16px;}
.mk-entry-list a span.mk-entry-arrow{color:var(--mk-primary);font-weight:600;}

/* ===== CTA ===== */
.mk-cta{background:var(--mk-bg-alt);border-top:1px solid var(--mk-line);border-bottom:1px solid var(--mk-line);}
.mk-cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:56px 0;
}
.mk-cta-inner h2{font-size:28px;line-height:1.32;font-weight:700;color:var(--mk-ink);margin-bottom:10px;}
.mk-cta-inner p{font-size:15px;color:var(--mk-muted);max-width:620px;}
.mk-cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}

/* ===== 页脚 ===== */
.mk-footer{background:var(--mk-night);color:#A9B8CB;padding:64px 0 0;}
.mk-footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;
}
.mk-footer .mk-logo-text{color:#fff;}
.mk-footer .mk-logo-mark{background:var(--mk-primary);}
.mk-footer-brand p{font-size:14px;line-height:1.8;color:#A9B8CB;margin-top:16px;max-width:340px;}
.mk-footer-contact{margin-top:14px;}
.mk-footer-contact strong{color:#fff;font-weight:600;}
.mk-footer h4{
  font-size:14px;font-weight:600;color:rgba(255,255,255,.85);
  margin-bottom:16px;letter-spacing:.02em;
}
.mk-footer ul{display:flex;flex-direction:column;gap:10px;}
.mk-footer ul a{font-size:14px;color:#A9B8CB;transition:color .2s ease;}
.mk-footer ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.mk-footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px 0 26px;font-size:13px;color:#8698B0;
}
.mk-footer-bottom a{color:#A9B8CB;}
.mk-footer-bottom a:hover{color:#fff;}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .mk-page-hero-copy h1{font-size:38px;}
}
@media (max-width:1023px){
  .mk-menu{display:none;}
  .mk-nav-link{display:none;}
  .mk-burger{display:inline-flex;}
  .mk-section{padding:68px 0;}
  .mk-page-hero-grid{grid-template-columns:1fr;gap:36px;padding:28px 0 48px;}
  .mk-page-hero-copy h1{font-size:34px;}
  .mk-float-card{position:static;margin-top:16px;max-width:none;left:auto;bottom:auto;box-shadow:var(--mk-sh-1);}
  .mk-split{grid-template-columns:1fr;gap:30px;padding:36px 0;}
  .mk-split.is-reverse .mk-split-copy{order:0;}
  .mk-split.is-reverse .mk-split-media{order:0;}
  .mk-faq-layout{grid-template-columns:1fr;gap:32px;}
  .mk-faq-aside{position:static;}
  .mk-blocker-item{grid-template-columns:44px 1fr;gap:8px 18px;}
  .mk-blocker-item p{grid-column:2;}
  .mk-cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0;}
  .mk-footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .mk-container{padding:0 20px;}
  .mk-section{padding:52px 0;}
  .mk-section-head{margin-bottom:28px;}
  .mk-section-head h2{font-size:24px;}
  .mk-page-hero-copy h1{font-size:30px;}
  .mk-page-hero-copy > p{font-size:16px;}
  .mk-metric-line li{padding:0 18px;min-width:96px;}
  .mk-metric-line strong{font-size:22px;}
  .mk-split-copy h2{font-size:23px;}
  .mk-lead{padding:20px 20px;font-size:15px;}
  .mk-entry-list{grid-template-columns:1fr;gap:0;}
  .mk-cta-inner h2{font-size:23px;}
  .mk-cta-actions{width:100%;}
  .mk-cta-actions .mk-btn{width:100%;}
  .mk-footer{padding-top:48px;}
  .mk-footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .mk-footer-bottom{flex-direction:column;}
}
@media (max-width:519px){
  .mk-page-hero-copy h1{font-size:27px;}
  .mk-hero-actions .mk-btn{width:100%;}
  .mk-metric-line li{padding:0 14px;min-width:0;flex:1 1 30%;}
  .mk-blocker-item{grid-template-columns:36px 1fr;gap:6px 12px;padding:18px 8px;}
  .mk-blocker-num{font-size:17px;}
}

/* roulang page: category2 */
:root{
  --mk-primary:#1F5DA8;
  --mk-primary-strong:#174A87;
  --mk-primary-soft:#E8F0FA;
  --mk-accent:#D08A2C;
  --mk-accent-soft:#FBF0DE;
  --mk-ink:#0F1B2B;
  --mk-body:#3C4B5E;
  --mk-muted:#6B7B90;
  --mk-line:#E2E8F0;
  --mk-bg:#F5F8FC;
  --mk-surface:#FFFFFF;
  --mk-bg-alt:#EDF3FA;
  --mk-night:#10233A;
  --mk-r-sm:8px;
  --mk-r-md:12px;
  --mk-r-lg:16px;
  --mk-r-xl:22px;
  --mk-sh-1:0 1px 2px rgba(15,27,43,.05),0 6px 16px rgba(15,27,43,.06);
  --mk-sh-2:0 2px 6px rgba(15,27,43,.07),0 14px 32px rgba(15,27,43,.09);
  --mk-container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--mk-body);
  background:var(--mk-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--mk-ink);font-weight:700;line-height:1.3;font-family:inherit}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
a{color:var(--mk-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--mk-primary-strong)}
img{max-width:100%;height:auto;display:block;border-style:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--mk-primary);outline-offset:2px;border-radius:4px}
.mk-container{width:100%;max-width:var(--mk-container);margin:0 auto;padding-left:24px;padding-right:24px}
.mk-grid{margin-left:-12px;margin-right:-12px;margin-bottom:-24px}
.mk-grid > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px}

/* ===== 顶部导航 ===== */
.mk-topbar{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--mk-line);box-shadow:0 1px 0 rgba(15,27,43,.02)}
.mk-nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.mk-nav-left{display:flex;align-items:center;gap:30px;min-width:0}
.mk-logo{display:inline-flex;align-items:center;gap:10px;color:var(--mk-ink);font-size:18px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.mk-logo:hover{color:var(--mk-primary)}
.mk-logo-mark{width:24px;height:24px;border-radius:6px;background:var(--mk-primary);display:grid;place-items:center;flex:0 0 auto}
.mk-logo-mark svg{width:16px;height:16px;display:block}
.mk-logo-text{line-height:1}
.mk-menu{display:flex;align-items:center;gap:26px}
.mk-menu a{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--mk-ink);white-space:nowrap}
.mk-menu a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:1px;background:var(--mk-primary);transition:width .22s ease}
.mk-menu a:hover{color:var(--mk-primary)}
.mk-menu a:hover::after{width:100%}
.mk-menu a.is-active{color:var(--mk-primary)}
.mk-menu a.is-active::after{width:100%}
.mk-nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.mk-icon-btn{width:40px;height:40px;border-radius:10px;border:1px solid transparent;background:transparent;color:var(--mk-ink);display:grid;place-items:center;cursor:pointer;transition:background .2s ease,color .2s ease}
.mk-icon-btn:hover{background:var(--mk-primary-soft);color:var(--mk-primary)}
.mk-icon-btn svg{width:18px;height:18px}
.mk-nav-link{font-size:14px;color:var(--mk-muted);white-space:nowrap}
.mk-nav-link:hover{color:var(--mk-primary)}
.mk-nav-toggle{display:none}
.mk-drawer{display:none;border-top:1px solid var(--mk-line);background:#fff;padding:8px 0 20px}
.mk-drawer.is-open{display:block}
.mk-drawer a.mk-drawer-link{display:block;padding:0 24px;line-height:48px;font-size:15px;font-weight:500;color:var(--mk-ink);border-left:3px solid transparent}
.mk-drawer a.mk-drawer-link:hover{background:var(--mk-bg-alt);color:var(--mk-primary)}
.mk-drawer a.mk-drawer-link.is-active{border-left-color:var(--mk-primary);color:var(--mk-primary);background:var(--mk-primary-soft)}
.mk-drawer .mk-btn{margin:16px 24px 0;width:calc(100% - 48px)}

/* ===== 按钮 ===== */
.mk-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;white-space:nowrap;text-align:center}
.mk-btn-sm{height:40px;font-size:14px;padding:0 16px}
.mk-btn-primary{background:var(--mk-primary);color:#fff;box-shadow:0 1px 2px rgba(31,93,168,.24)}
.mk-btn-primary:hover{background:var(--mk-primary-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--mk-sh-2)}
.mk-btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(31,93,168,.24)}
.mk-btn-ghost{background:#fff;border-color:#CBD8E6;color:var(--mk-ink)}
.mk-btn-ghost:hover{border-color:var(--mk-primary);color:var(--mk-primary);transform:translateY(-1px);box-shadow:var(--mk-sh-1)}
.mk-btn-ghost:active{transform:translateY(0)}
.mk-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--mk-primary)}
.mk-link span{transition:transform .2s ease}
.mk-link:hover span{transform:translateX(3px)}

/* ===== 面包屑 ===== */
.mk-crumb{padding:18px 0 0;font-size:13px;color:var(--mk-muted);line-height:1.6}
.mk-crumb a{color:var(--mk-muted)}
.mk-crumb a:hover{color:var(--mk-primary)}
.mk-crumb .mk-crumb-sep{margin:0 8px;color:#B7C4D4}
.mk-crumb .is-current{color:var(--mk-ink);font-weight:500}

/* ===== 首屏 ===== */
.mk-hero{padding:60px 0 76px;background:linear-gradient(#FFFFFF 0%,#F5F8FC 100%)}
.mk-hero-copy{padding-right:12px}
.mk-eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--mk-primary);background:var(--mk-primary-soft);padding:6px 12px;border-radius:999px;margin-bottom:18px}
.mk-hero h1{font-size:44px;line-height:1.22;letter-spacing:-.01em;margin-bottom:18px}
.mk-hero-sub{font-size:18px;line-height:1.7;color:var(--mk-body);max-width:560px;margin-bottom:26px}
.mk-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.mk-hero-stats{display:flex;flex-wrap:wrap;align-items:stretch}
.mk-hero-stat{padding:0 26px;border-left:1px solid var(--mk-line)}
.mk-hero-stat:first-child{padding-left:0;border-left:0}
.mk-hero-stat strong{display:block;font-size:24px;font-weight:700;color:var(--mk-primary);line-height:1.25;font-variant-numeric:tabular-nums}
.mk-hero-stat span{display:block;font-size:13px;color:var(--mk-muted);line-height:1.5;margin-top:2px}
.mk-hero-media{margin:0;border-radius:var(--mk-r-lg);overflow:hidden;background:#fff;box-shadow:var(--mk-sh-2);aspect-ratio:4/3}
.mk-hero-media img{width:100%;height:100%;object-fit:cover}

/* ===== 板块与标题 ===== */
.mk-section{padding:88px 0}
.mk-section-alt{background:var(--mk-bg-alt)}
.mk-section-white{background:#fff}
.mk-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:36px;flex-wrap:wrap}
.mk-sec-head h2{position:relative;padding-left:14px;font-size:30px;line-height:1.3}
.mk-sec-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--mk-primary)}
.mk-sec-head p{font-size:14px;line-height:1.7;color:var(--mk-muted);max-width:520px;margin:0}
.mk-lead{max-width:880px;margin-bottom:8px}
.mk-lead p{font-size:17px;line-height:1.9;color:var(--mk-body)}

/* ===== 卡片 ===== */
.mk-card{background:var(--mk-surface);border:1px solid var(--mk-line);border-radius:14px;box-shadow:var(--mk-sh-1);padding:24px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.mk-card:hover{transform:translateY(-2px);box-shadow:var(--mk-sh-2);border-color:#CBD8E6}
.mk-card-lg{padding:0;overflow:hidden;display:flex;flex-direction:column;height:100%}
.mk-card-lg .mk-card-media{margin:0;border-radius:0;aspect-ratio:16/10}
.mk-card-lg .mk-card-body{padding:26px;display:flex;flex-direction:column;flex:1 1 auto}
.mk-card-lg h3{font-size:22px;margin-bottom:10px}
.mk-card-lg p{font-size:15px;line-height:1.8;color:var(--mk-muted);margin-bottom:16px}
.mk-card-lg .mk-link{margin-top:auto}
.mk-card-media{border-radius:var(--mk-r-md);overflow:hidden;background:var(--mk-bg-alt);margin-bottom:18px;aspect-ratio:16/10}
.mk-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.mk-card:hover .mk-card-media img{transform:scale(1.03)}
.mk-badge{display:inline-block;font-size:12px;font-weight:600;line-height:1;color:var(--mk-primary);background:var(--mk-primary-soft);border-radius:999px;padding:6px 10px;margin-bottom:12px}
.mk-badge-accent{color:#9A5F12;background:var(--mk-accent-soft)}
.mk-mini{background:var(--mk-surface);border:1px solid var(--mk-line);border-radius:14px;box-shadow:var(--mk-sh-1);padding:22px;height:100%;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.mk-mini:hover{transform:translateY(-2px);border-color:var(--mk-primary);box-shadow:var(--mk-sh-2)}
.mk-mini-icon{width:44px;height:44px;border-radius:12px;background:var(--mk-primary-soft);color:var(--mk-primary);display:grid;place-items:center;margin-bottom:14px}
.mk-mini-icon svg{width:20px;height:20px}
.mk-mini h3{font-size:17px;margin-bottom:8px}
.mk-mini p{font-size:14px;line-height:1.7;color:var(--mk-muted);margin:0}

/* ===== 步骤 ===== */
.mk-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.mk-step{background:var(--mk-surface);border:1px solid var(--mk-line);border-radius:14px;box-shadow:var(--mk-sh-1);padding:24px;position:relative;transition:transform .22s ease,box-shadow .22s ease}
.mk-step:hover{transform:translateY(-2px);box-shadow:var(--mk-sh-2)}
.mk-step-num{display:block;font-size:20px;font-weight:700;color:var(--mk-primary);font-variant-numeric:tabular-nums;margin-bottom:12px;letter-spacing:.02em}
.mk-step h3{font-size:17px;margin-bottom:8px}
.mk-step p{font-size:14px;line-height:1.7;color:var(--mk-muted);margin:0}

/* ===== 双栏对照 ===== */
.mk-split{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.mk-panel{background:var(--mk-surface);border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);box-shadow:var(--mk-sh-1);padding:28px}
.mk-panel h3{font-size:20px;margin-bottom:8px}
.mk-panel > p{font-size:14px;color:var(--mk-muted);line-height:1.75;margin-bottom:18px}
.mk-check li{position:relative;padding-left:26px;margin-bottom:12px;font-size:15px;line-height:1.7;color:var(--mk-body)}
.mk-check li:last-child{margin-bottom:0}
.mk-check li::before{content:"";position:absolute;left:2px;top:9px;width:12px;height:7px;border-left:2px solid var(--mk-primary);border-bottom:2px solid var(--mk-primary);transform:rotate(-45deg)}
.mk-panel-note{margin-top:18px;padding-top:16px;border-top:1px dashed var(--mk-line);font-size:13px;color:var(--mk-muted)}

/* ===== 图文区 ===== */
.mk-figure{margin:0;border-radius:var(--mk-r-lg);overflow:hidden;box-shadow:var(--mk-sh-2);background:#fff;aspect-ratio:16/11}
.mk-figure img{width:100%;height:100%;object-fit:cover}
.mk-figure-cap{font-size:13px;color:var(--mk-muted);margin-top:10px;text-align:center}
.mk-note-card{background:#fff;border:1px solid var(--mk-line);border-left:4px solid var(--mk-primary);border-radius:var(--mk-r-md);padding:20px 22px;box-shadow:var(--mk-sh-1)}
.mk-note-card h4{font-size:16px;margin-bottom:8px}
.mk-note-card p{font-size:14px;line-height:1.75;color:var(--mk-muted);margin:0}

/* ===== FAQ ===== */
.mk-faq{max-width:880px}
.mk-faq details{background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-md);box-shadow:var(--mk-sh-1);margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease}
.mk-faq details:hover{border-color:#CBD8E6;box-shadow:var(--mk-sh-2)}
.mk-faq details[open]{border-color:#C6D7EA}
.mk-faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:14px 20px;font-size:16px;font-weight:600;color:var(--mk-ink);transition:color .2s ease,box-shadow .2s ease}
.mk-faq summary::-webkit-details-marker{display:none}
.mk-faq summary:hover{color:var(--mk-primary)}
.mk-faq summary::after{content:"+";flex:0 0 auto;width:24px;height:24px;border-radius:6px;background:var(--mk-primary-soft);color:var(--mk-primary);font-size:16px;font-weight:700;line-height:24px;text-align:center}
.mk-faq details[open] summary{color:var(--mk-primary);box-shadow:inset 3px 0 0 var(--mk-primary)}
.mk-faq details[open] summary::after{content:"−"}
.mk-faq-body{padding:2px 20px 20px;font-size:15px;line-height:1.85;color:var(--mk-body)}
.mk-faq-body p{margin-bottom:10px}
.mk-faq-body p:last-child{margin-bottom:0}

/* ===== 相关入口 ===== */
.mk-related{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.mk-related a{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-md);padding:18px 20px;color:var(--mk-ink);transition:border-color .2s ease,background .2s ease,transform .2s ease,box-shadow .2s ease}
.mk-related a:hover{border-color:var(--mk-primary);background:var(--mk-primary-soft);transform:translateX(2px);box-shadow:var(--mk-sh-1);color:var(--mk-primary)}
.mk-related .mk-related-text{display:block;min-width:0}
.mk-related strong{display:block;font-size:15px;font-weight:600;line-height:1.5}
.mk-related small{display:block;font-size:13px;color:var(--mk-muted);line-height:1.5;margin-top:2px}
.mk-related .mk-related-arrow{flex:0 0 auto;font-size:16px;color:var(--mk-primary)}

/* ===== 底部 CTA ===== */
.mk-cta{background:var(--mk-bg-alt);padding:56px 0}
.mk-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.mk-cta h2{font-size:26px;margin-bottom:8px}
.mk-cta p{font-size:15px;color:var(--mk-muted);margin:0;max-width:640px}

/* ===== 页脚 ===== */
.mk-footer{background:var(--mk-night);color:#A9B8CB;padding:64px 0 0}
.mk-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.mk-footer-brand .mk-logo{color:#fff;margin-bottom:16px}
.mk-footer-brand .mk-logo-text{color:#fff}
.mk-footer h4{color:rgba(255,255,255,.85);font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.02em}
.mk-footer ul li{margin-bottom:10px}
.mk-footer ul a{color:#A9B8CB;font-size:14px;line-height:1.6}
.mk-footer ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.mk-footer-brand p{font-size:14px;line-height:1.8;margin:0 0 12px;max-width:340px;color:#A9B8CB}
.mk-footer-contact strong{color:rgba(255,255,255,.85);font-weight:600}
.mk-footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8698AD}
.mk-footer-bottom a{color:#A9B8CB}
.mk-footer-bottom a:hover{color:#fff}

/* ===== 回到顶部 ===== */
.mk-totop{position:fixed;right:20px;bottom:24px;width:44px;height:44px;border-radius:12px;background:#fff;border:1px solid var(--mk-line);box-shadow:var(--mk-sh-2);color:var(--mk-primary);display:none;place-items:center;cursor:pointer;z-index:70;transition:background .2s ease,transform .2s ease}
.mk-totop:hover{background:var(--mk-primary-soft);transform:translateY(-2px)}
.mk-totop.is-show{display:grid}
.mk-totop svg{width:18px;height:18px}

/* ===== 响应式 ===== */
@media (max-width:1079px){
  .mk-menu{display:none}
  .mk-nav-link,.mk-nav-cta{display:none}
  .mk-nav-toggle{display:grid}
  .mk-nav-left{gap:16px}
}
@media (min-width:1080px){
  .mk-drawer{display:none !important}
}
@media (max-width:1024px){
  .mk-section{padding:66px 0}
  .mk-hero{padding:44px 0 60px}
  .mk-hero h1{font-size:36px}
  .mk-hero-copy{padding-right:0;margin-bottom:34px}
  .mk-hero-media{aspect-ratio:16/10}
  .mk-sec-head h2{font-size:26px}
  .mk-steps{grid-template-columns:repeat(2,1fr)}
  .mk-split{grid-template-columns:1fr}
  .mk-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .mk-cta{padding:48px 0}
}
@media (max-width:640px){
  .mk-container{padding-left:20px;padding-right:20px}
  .mk-nav-inner{height:56px}
  .mk-logo{font-size:16px}
  .mk-hero{padding:36px 0 48px}
  .mk-hero h1{font-size:31px;line-height:1.25}
  .mk-hero-sub{font-size:16px}
  .mk-hero-actions .mk-btn{width:100%}
  .mk-hero-stat{padding:0 18px}
  .mk-hero-stat strong{font-size:20px}
  .mk-section{padding:46px 0}
  .mk-sec-head{margin-bottom:26px;gap:14px}
  .mk-sec-head h2{font-size:22px}
  .mk-lead p{font-size:16px;line-height:1.85}
  .mk-steps{grid-template-columns:1fr}
  .mk-related{grid-template-columns:1fr}
  .mk-footer{padding:44px 0 0}
  .mk-footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .mk-footer-brand p{max-width:none}
  .mk-cta h2{font-size:21px}
  .mk-cta-inner .mk-btn{width:100%}
  .mk-faq summary{font-size:15px;padding:14px 16px}
  .mk-faq-body{padding:2px 16px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --mk-primary:#1F5DA8;
  --mk-primary-strong:#174A87;
  --mk-primary-soft:#E8F0FA;
  --mk-accent:#D08A2C;
  --mk-accent-soft:#FBF0DE;
  --mk-ink:#0F1B2B;
  --mk-body:#3C4B5E;
  --mk-muted:#6B7B90;
  --mk-line:#E2E8F0;
  --mk-bg:#F5F8FC;
  --mk-surface:#FFFFFF;
  --mk-bg-alt:#EDF3FA;
  --mk-night:#10233A;
  --mk-r-sm:8px;
  --mk-r-md:12px;
  --mk-r-lg:16px;
  --mk-r-xl:22px;
  --mk-sh-1:0 1px 2px rgba(15,27,43,.05),0 6px 16px rgba(15,27,43,.06);
  --mk-sh-2:0 2px 6px rgba(15,27,43,.07),0 14px 32px rgba(15,27,43,.09);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--mk-body);
  background:var(--mk-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--mk-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--mk-primary-strong)}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--mk-primary);
  outline-offset:2px;
}
.mk-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.mk-section{padding:88px 0}
.mk-section-alt{background:var(--mk-bg-alt)}
.mk-section-white{background:var(--mk-surface)}
.mk-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--mk-primary);
  background:var(--mk-primary-soft);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:18px;
}
.mk-h2{
  font-size:32px;
  line-height:1.3;
  font-weight:700;
  color:var(--mk-ink);
  letter-spacing:-.01em;
  position:relative;
  padding-left:0;
}
.mk-h2::before{
  content:"";
  display:block;
  width:36px;
  height:4px;
  border-radius:2px;
  background:var(--mk-primary);
  margin-bottom:16px;
}
.mk-sub{
  font-size:16px;
  color:var(--mk-muted);
  margin-top:14px;
  max-width:720px;
}
.mk-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.mk-btn-primary{background:var(--mk-primary);color:#fff}
.mk-btn-primary:hover{background:var(--mk-primary-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--mk-sh-2)}
.mk-btn-primary:active{transform:translateY(0);box-shadow:var(--mk-sh-1)}
.mk-btn-ghost{background:#fff;border-color:#CBD8E6;color:var(--mk-ink)}
.mk-btn-ghost:hover{border-color:var(--mk-primary);color:var(--mk-primary);transform:translateY(-1px);box-shadow:var(--mk-sh-1)}
.mk-btn-ghost:active{transform:translateY(0)}
.mk-btn-sm{height:40px;padding:0 18px;font-size:14px}
.mk-btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--mk-primary);
}
.mk-btn-link:hover{gap:10px;color:var(--mk-primary-strong)}

/* ===== Header ===== */
.mk-header{
  position:sticky;
  top:0;
  z-index:120;
  background:#fff;
  border-bottom:1px solid var(--mk-line);
}
.mk-header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:64px;
}
.mk-nav-left{display:flex;align-items:center;gap:34px;min-width:0}
.mk-logo{display:inline-flex;align-items:center;gap:9px;flex:0 0 auto}
.mk-logo-mark{
  width:24px;height:24px;border-radius:6px;background:var(--mk-primary);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.mk-logo-mark svg{width:16px;height:16px;display:block}
.mk-logo-text{font-size:18px;font-weight:700;color:var(--mk-ink);letter-spacing:-.01em;white-space:nowrap}
.mk-logo:hover .mk-logo-text{color:var(--mk-primary)}
.mk-menu{display:flex;align-items:center;gap:26px}
.mk-menu a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--mk-ink);
  padding:6px 0;
  white-space:nowrap;
}
.mk-menu a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  height:2px;
  width:16px;
  background:var(--mk-primary);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease,width .22s ease;
}
.mk-menu a:hover{color:var(--mk-primary)}
.mk-menu a:hover::after{transform:scaleX(1);width:100%}
.mk-menu a.is-active{color:var(--mk-primary)}
.mk-menu a.is-active::after{transform:scaleX(1);width:100%}
.mk-nav-right{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.mk-search-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid transparent;background:transparent;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--mk-body);
  transition:background .2s ease,color .2s ease;
}
.mk-search-btn:hover{background:var(--mk-primary-soft);color:var(--mk-primary)}
.mk-search-btn svg{width:18px;height:18px}
.mk-nav-link{font-size:14px;color:var(--mk-muted);white-space:nowrap}
.mk-nav-link:hover{color:var(--mk-primary)}
.mk-burger{
  display:none;
  width:40px;height:40px;border-radius:10px;border:1px solid var(--mk-line);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;padding:0;
}
.mk-burger span{
  display:block;width:18px;height:2px;background:var(--mk-ink);border-radius:2px;position:relative;
}
.mk-burger span::before,.mk-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--mk-ink);border-radius:2px;
}
.mk-burger span::before{top:-6px}
.mk-burger span::after{top:6px}
.mk-searchbar{
  display:none;
  border-top:1px solid var(--mk-line);
  background:#fff;
  padding:14px 0;
}
.mk-searchbar.is-open{display:block}
.mk-searchbar form{display:flex;gap:10px;align-items:center}
.mk-searchbar input{
  flex:1 1 auto;height:44px;border:1px solid #CBD8E6;border-radius:10px;padding:0 14px;font-size:15px;color:var(--mk-ink);
  background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.mk-searchbar input:focus{outline:none;border-color:var(--mk-primary);box-shadow:0 0 0 3px var(--mk-primary-soft)}
.mk-drawer{
  display:none;
  border-top:1px solid var(--mk-line);
  background:#fff;
  padding:8px 24px 20px;
}
.mk-drawer.is-open{display:block}
.mk-drawer a.mk-drawer-link{
  display:block;
  padding:12px 0 12px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--mk-ink);
  border-bottom:1px solid var(--mk-line);
  border-left:3px solid transparent;
}
.mk-drawer a.mk-drawer-link.is-active{border-left-color:var(--mk-primary);color:var(--mk-primary);background:var(--mk-primary-soft)}
.mk-drawer .mk-btn{width:100%;margin-top:16px}

/* ===== Hero ===== */
.mk-page-hero{
  background:linear-gradient(180deg,#FFFFFF 0%,var(--mk-bg) 100%);
  padding:44px 0 72px;
  border-bottom:1px solid var(--mk-line);
}
.mk-breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;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:#B7C4D4}
.mk-breadcrumb .current{color:var(--mk-body)}
.mk-hero-grid{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:52px;
  align-items:center;
}
.mk-hero-copy h1{
  font-size:46px;
  line-height:1.22;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--mk-ink);
  margin-bottom:18px;
}
.mk-hero-copy h1 em{
  font-style:normal;
  color:var(--mk-primary);
}
.mk-hero-lead{
  font-size:17px;
  line-height:1.8;
  color:var(--mk-body);
  max-width:560px;
  margin-bottom:28px;
}
.mk-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.mk-metrics{
  display:flex;
  align-items:stretch;
  gap:0;
  flex-wrap:wrap;
}
.mk-metric{
  padding:0 24px;
  border-left:1px solid var(--mk-line);
}
.mk-metric:first-child{padding-left:0;border-left:0}
.mk-metric strong{
  display:block;
  font-size:24px;
  font-weight:700;
  color:var(--mk-primary);
  font-variant-numeric:tabular-nums;
  line-height:1.3;
}
.mk-metric span{display:block;font-size:13px;color:var(--mk-muted);line-height:1.6}
.mk-hero-visual{position:relative}
.mk-hero-figure{
  border-radius:var(--mk-r-lg);
  overflow:hidden;
  border:1px solid var(--mk-line);
  box-shadow:var(--mk-sh-2);
  background:#fff;
}
.mk-hero-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.mk-hero-float{
  position:absolute;
  left:-18px;
  bottom:-22px;
  background:#fff;
  border:1px solid var(--mk-line);
  border-radius:var(--mk-r-md);
  box-shadow:var(--mk-sh-2);
  padding:14px 18px;
  max-width:250px;
}
.mk-hero-float strong{
  display:block;font-size:14px;color:var(--mk-ink);font-weight:700;margin-bottom:4px;
}
.mk-hero-float span{font-size:13px;line-height:1.6;color:var(--mk-muted);display:block}

/* ===== Lead ===== */
.mk-lead-block{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.mk-lead-text p{
  font-size:16.5px;
  line-height:1.95;
  color:var(--mk-body);
  margin-bottom:16px;
}
.mk-lead-text p:last-child{margin-bottom:0}
.mk-steps{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.mk-step{
  background:#fff;
  border:1px solid var(--mk-line);
  border-radius:var(--mk-r-md);
  padding:18px 20px;
  box-shadow:var(--mk-sh-1);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.mk-step:hover{box-shadow:var(--mk-sh-2);transform:translateY(-2px);border-color:#C6D8EE}
.mk-step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:8px;
  background:var(--mk-accent-soft);color:var(--mk-accent);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.mk-step h3{font-size:15.5px;font-weight:700;color:var(--mk-ink);margin-bottom:6px;line-height:1.45}
.mk-step p{font-size:13.5px;line-height:1.7;color:var(--mk-muted)}

/* ===== Guide split ===== */
.mk-split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:52px;
  align-items:center;
}
.mk-split-figure{
  border-radius:var(--mk-r-lg);
  overflow:hidden;
  border:1px solid var(--mk-line);
  box-shadow:var(--mk-sh-1);
}
.mk-split-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .3s ease}
.mk-split-figure:hover img{transform:scale(1.03)}
.mk-check-card{
  background:#fff;
  border:1px solid var(--mk-line);
  border-radius:var(--mk-r-lg);
  box-shadow:var(--mk-sh-1);
  padding:28px;
}
.mk-check-card h3{font-size:21px;font-weight:700;color:var(--mk-ink);margin-bottom:8px;line-height:1.4}
.mk-check-card > p{font-size:14px;color:var(--mk-muted);margin-bottom:20px}
.mk-check-list li{
  display:flex;
  gap:12px;
  padding:14px 0;
  border-top:1px solid var(--mk-line);
  font-size:14.5px;
  line-height:1.7;
  color:var(--mk-body);
}
.mk-check-list li:first-child{border-top:0;padding-top:0}
.mk-check-list .tick{
  flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  background:var(--mk-primary-soft);color:var(--mk-primary);
  display:inline-flex;align-items:center;justify-content:center;margin-top:3px;
}
.mk-check-list .tick svg{width:12px;height:12px}
.mk-check-list strong{color:var(--mk-ink);font-weight:600}

/* ===== FAQ layout ===== */
.mk-faq-layout{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:44px;
  align-items:start;
  margin-top:44px;
}
.mk-anchor{
  position:sticky;
  top:88px;
  background:#fff;
  border:1px solid var(--mk-line);
  border-radius:var(--mk-r-lg);
  padding:20px 16px;
  box-shadow:var(--mk-sh-1);
}
.mk-anchor h4{
  font-size:13px;font-weight:700;color:var(--mk-muted);letter-spacing:.06em;
  padding:0 6px;margin-bottom:10px;
}
.mk-anchor a{
  display:block;
  padding:10px 12px;
  border-radius:8px;
  font-size:14px;
  color:var(--mk-body);
  transition:background .18s ease,color .18s ease;
}
.mk-anchor a:hover{background:var(--mk-primary-soft);color:var(--mk-primary)}
.mk-anchor .mk-anchor-cta{
  margin-top:14px;
  padding-top:14px;
  border-top:1px solid var(--mk-line);
}
.mk-anchor .mk-anchor-cta a{
  background:var(--mk-primary);
  color:#fff;
  text-align:center;
  font-weight:600;
  border-radius:10px;
  padding:12px;
}
.mk-anchor .mk-anchor-cta a:hover{background:var(--mk-primary-strong);color:#fff}
.mk-faq-group{margin-bottom:28px}
.mk-faq-group:last-child{margin-bottom:0}
.mk-faq-group-title{
  display:flex;align-items:center;gap:10px;
  font-size:15px;font-weight:700;color:var(--mk-ink);
  margin-bottom:16px;
}
.mk-faq-group-title::before{
  content:"";width:4px;height:16px;border-radius:2px;background:var(--mk-primary);
}
.mk-faq-cols{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px 20px;
  align-items:start;
}
.mk-faq-col{display:grid;gap:16px}
.mk-faq-item{
  background:#fff;
  border:1px solid var(--mk-line);
  border-radius:var(--mk-r-md);
  box-shadow:var(--mk-sh-1);
  overflow:hidden;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.mk-faq-item:hover{border-color:#C6D8EE;box-shadow:var(--mk-sh-2)}
.mk-faq-item.is-open{border-color:#B9D1EC;box-shadow:var(--mk-sh-2)}
.mk-faq-q{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  width:100%;
  min-height:56px;
  padding:16px 20px 16px 22px;
  background:none;
  border:0;
  text-align:left;
  font-size:15.5px;
  font-weight:600;
  line-height:1.55;
  color:var(--mk-ink);
  cursor:pointer;
  transition:color .18s ease;
}
.mk-faq-q::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:transparent;
  transition:background .2s ease;
}
.mk-faq-item.is-open .mk-faq-q::before{background:var(--mk-primary)}
.mk-faq-q:hover{color:var(--mk-primary)}
.mk-faq-icon{
  flex:0 0 auto;
  position:relative;
  width:16px;height:16px;
}
.mk-faq-icon::before,.mk-faq-icon::after{
  content:"";position:absolute;left:0;top:7px;width:16px;height:2px;border-radius:2px;background:var(--mk-muted);
  transition:transform .22s ease,background .22s ease;
}
.mk-faq-icon::after{transform:rotate(90deg)}
.mk-faq-item.is-open .mk-faq-icon::before{background:var(--mk-primary)}
.mk-faq-item.is-open .mk-faq-icon::after{transform:rotate(0);background:var(--mk-primary)}
.mk-faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.mk-faq-item.is-open .mk-faq-a{max-height:600px}
.mk-faq-a p{
  padding:0 20px 18px 22px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--mk-body);
}
.mk-faq-a p strong{color:var(--mk-ink);font-weight:600}

/* ===== Link list ===== */
.mk-link-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  margin-top:36px;
}
.mk-link-row{
  display:flex;
  align-items:center;
  gap:16px;
  padding:18px 20px;
  background:#fff;
  border:1px solid var(--mk-line);
  border-radius:var(--mk-r-md);
  box-shadow:var(--mk-sh-1);
  transition:background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.mk-link-row:hover{
  background:var(--mk-primary-soft);
  border-color:#B9D1EC;
  transform:translateY(-2px);
  box-shadow:var(--mk-sh-2);
}
.mk-link-row .mk-link-idx{
  flex:0 0 auto;
  width:34px;height:34px;border-radius:9px;
  background:var(--mk-primary-soft);color:var(--mk-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.mk-link-row .mk-link-body{flex:1 1 auto;min-width:0}
.mk-link-row strong{display:block;font-size:15.5px;font-weight:700;color:var(--mk-ink);line-height:1.5;margin-bottom:2px}
.mk-link-row span{display:block;font-size:13px;color:var(--mk-muted);line-height:1.6}
.mk-link-row .mk-link-arrow{flex:0 0 auto;color:var(--mk-muted);transition:transform .2s ease,color .2s ease}
.mk-link-row:hover .mk-link-arrow{transform:translateX(3px);color:var(--mk-primary)}

/* ===== CTA ===== */
.mk-cta{
  background:var(--mk-bg-alt);
  border-top:1px solid var(--mk-line);
  border-bottom:1px solid var(--mk-line);
  padding:52px 0;
}
.mk-cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.mk-cta h2{font-size:26px;font-weight:700;color:var(--mk-ink);line-height:1.4;margin-bottom:8px}
.mk-cta p{font-size:15px;color:var(--mk-muted);max-width:620px}
.mk-cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ===== Footer ===== */
.mk-footer{background:var(--mk-night);color:#A9B8CB;padding:64px 0 0}
.mk-footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.mk-footer .mk-logo-text{color:#fff}
.mk-footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:#A9B8CB;
  margin-top:16px;
  max-width:340px;
}
.mk-footer-contact{margin-top:14px}
.mk-footer-contact strong{color:#D6E0EC;font-weight:600}
.mk-footer h4{
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.82);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.mk-footer ul li{margin-bottom:10px}
.mk-footer ul li a{
  font-size:14px;
  color:#A9B8CB;
  transition:color .18s ease;
}
.mk-footer ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.mk-footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  font-size:13px;
  color:#8B9BB0;
}
.mk-footer-bottom a{color:#A9B8CB}
.mk-footer-bottom a:hover{color:#fff}

/* ===== Back to top ===== */
.mk-top{
  position:fixed;
  right:20px;
  bottom:20px;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--mk-primary);
  color:#fff;
  border:0;
  display:none;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  box-shadow:var(--mk-sh-2);
  z-index:100;
  transition:background .2s ease,transform .2s ease;
}
.mk-top:hover{background:var(--mk-primary-strong);transform:translateY(-2px)}
.mk-top.is-show{display:inline-flex}
.mk-top svg{width:18px;height:18px}

[id]{scroll-margin-top:88px}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .mk-hero-copy h1{font-size:40px}
  .mk-hero-grid{gap:40px}
}
@media (max-width:1023px){
  .mk-menu,.mk-nav-link{display:none}
  .mk-burger{display:inline-flex}
  .mk-header-inner{height:56px}
  .mk-hero-grid{grid-template-columns:1fr;gap:36px}
  .mk-hero-copy h1{font-size:34px}
  .mk-hero-lead{font-size:16px;max-width:none}
  .mk-hero-visual{max-width:560px}
  .mk-hero-float{left:auto;right:16px;bottom:-18px}
  .mk-page-hero{padding:32px 0 56px}
  .mk-section{padding:64px 0}
  .mk-lead-block{grid-template-columns:1fr;gap:36px}
  .mk-split{grid-template-columns:1fr;gap:32px}
  .mk-faq-layout{grid-template-columns:1fr;gap:28px}
  .mk-anchor{position:static;display:flex;flex-wrap:wrap;gap:8px;padding:14px;align-items:center}
  .mk-anchor h4{width:100%;margin-bottom:2px}
  .mk-anchor a{padding:8px 12px;background:var(--mk-bg);border-radius:999px;font-size:13px}
  .mk-anchor .mk-anchor-cta{margin-top:0;padding-top:0;border-top:0;width:100%}
  .mk-anchor .mk-anchor-cta a{border-radius:10px}
  .mk-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .mk-h2{font-size:27px}
}
@media (max-width:767px){
  .mk-container{padding:0 20px}
  .mk-hero-copy h1{font-size:31px}
  .mk-metric{padding:0 16px}
  .mk-metric strong{font-size:21px}
  .mk-faq-cols{grid-template-columns:1fr}
  .mk-steps{grid-template-columns:1fr}
  .mk-link-grid{grid-template-columns:1fr}
  .mk-cta{padding:40px 0}
  .mk-cta h2{font-size:22px}
  .mk-cta-actions{width:100%}
  .mk-cta-actions .mk-btn{width:100%}
  .mk-footer{padding-top:48px}
  .mk-footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .mk-hero-float{position:static;margin-top:14px;max-width:none}
  .mk-section{padding:52px 0}
  .mk-h2{font-size:24px}
}
@media (max-width:520px){
  .mk-hero-copy h1{font-size:28px}
  .mk-hero-actions .mk-btn{width:100%}
  .mk-metrics{gap:14px 0}
  .mk-metric{width:50%;padding:0 12px}
  .mk-metric:nth-child(odd){padding-left:0;border-left:0}
  .mk-check-card{padding:22px 20px}
  .mk-faq-q{font-size:15px;padding:14px 16px 14px 18px}
  .mk-faq-a p{padding:0 16px 16px 18px}
  .mk-footer-grid{grid-template-columns:1fr}
}

/* roulang page: category5 */
:root{
  --mk-primary:#1F5DA8;
  --mk-primary-strong:#174A87;
  --mk-primary-soft:#E8F0FA;
  --mk-accent:#D08A2C;
  --mk-accent-soft:#FBF0DE;
  --mk-ink:#0F1B2B;
  --mk-body:#3C4B5E;
  --mk-muted:#6B7B90;
  --mk-line:#E2E8F0;
  --mk-bg:#F5F8FC;
  --mk-surface:#FFFFFF;
  --mk-bg-alt:#EDF3FA;
  --mk-night:#10233A;
  --mk-r-sm:8px;
  --mk-r-md:12px;
  --mk-r-lg:16px;
  --mk-r-xl:22px;
  --mk-sh-1:0 1px 2px rgba(15,27,43,.05),0 6px 16px rgba(15,27,43,.06);
  --mk-sh-2:0 2px 6px rgba(15,27,43,.07),0 14px 32px rgba(15,27,43,.09);
  --mk-container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--mk-body);
  background:var(--mk-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--mk-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--mk-primary-strong);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--mk-primary);outline-offset:2px;border-radius:4px;}
.mk-container{width:100%;max-width:var(--mk-container);margin:0 auto;padding:0 24px;}
.mk-section{padding:88px 0;}
.mk-section--alt{background:var(--mk-bg-alt);}
.mk-section-head{max-width:760px;margin-bottom:36px;}
.mk-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;font-weight:600;
  color:var(--mk-primary);background:var(--mk-primary-soft);
  border-radius:999px;padding:5px 12px;margin-bottom:14px;
}
.mk-h2{
  font-size:30px;line-height:1.3;font-weight:700;color:var(--mk-ink);
  position:relative;padding-left:14px;
}
.mk-h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;
  border-radius:2px;background:var(--mk-primary);
}
.mk-lead{font-size:16px;color:var(--mk-body);margin-top:14px;}
.mk-muted{color:var(--mk-muted);font-size:13px;}

/* buttons */
.mk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.mk-btn--primary{background:var(--mk-primary);color:#fff;box-shadow:var(--mk-sh-1);}
.mk-btn--primary:hover{background:var(--mk-primary-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--mk-sh-2);}
.mk-btn--primary:active{transform:translateY(0);box-shadow:var(--mk-sh-1);}
.mk-btn--ghost{background:#fff;color:var(--mk-ink);border-color:#CBD8E6;}
.mk-btn--ghost:hover{border-color:var(--mk-primary);color:var(--mk-primary);transform:translateY(-1px);box-shadow:var(--mk-sh-1);}
.mk-btn--sm{height:36px;padding:0 16px;font-size:14px;}
.mk-link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--mk-primary);}
.mk-link-arrow i{font-size:12px;transition:transform .2s ease;}
.mk-link-arrow:hover i{transform:translateX(4px);}

/* badges */
.mk-badge{
  display:inline-block;font-size:12px;line-height:1.6;font-weight:600;
  padding:3px 10px;border-radius:999px;
  background:var(--mk-primary-soft);color:var(--mk-primary);
}
.mk-badge--accent{background:var(--mk-accent-soft);color:#96601B;}

/* header */
.mk-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--mk-line);
}
.mk-header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:64px;
}
.mk-logo{display:inline-flex;align-items:center;gap:10px;color:var(--mk-ink);font-weight:700;font-size:18px;}
.mk-logo:hover{color:var(--mk-ink);}
.mk-logo-mark{
  width:24px;height:24px;border-radius:6px;background:var(--mk-primary);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 24px;
}
.mk-logo-mark svg{width:16px;height:16px;}
.mk-nav-left{display:flex;align-items:center;gap:30px;min-width:0;}
.mk-menu{display:flex;align-items:center;gap:26px;}
.mk-menu a{
  position:relative;font-size:15px;font-weight:500;color:var(--mk-ink);
  padding:6px 0;white-space:nowrap;
}
.mk-menu a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--mk-primary);transition:width .22s ease;
}
.mk-menu a:hover{color:var(--mk-primary);}
.mk-menu a:hover::after{width:100%;}
.mk-menu a.is-active{color:var(--mk-primary);font-weight:600;}
.mk-menu a.is-active::after{width:16px;}
.mk-nav-right{display:flex;align-items:center;gap:14px;}
.mk-icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid transparent;
  background:transparent;color:var(--mk-body);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .2s ease,color .2s ease;
}
.mk-icon-btn:hover{background:var(--mk-primary-soft);color:var(--mk-primary);}
.mk-nav-textlink{font-size:14px;color:var(--mk-body);font-weight:500;}
.mk-nav-textlink:hover{color:var(--mk-primary);}
.mk-burger{display:none;}

/* mobile drawer */
.mk-drawer{
  position:fixed;inset:0;z-index:90;display:none;
}
.mk-drawer.is-open{display:block;}
.mk-drawer-mask{position:absolute;inset:0;background:rgba(15,27,43,.45);}
.mk-drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;padding:20px;display:flex;flex-direction:column;gap:6px;
  box-shadow:-8px 0 32px rgba(15,27,43,.16);
}
.mk-drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.mk-drawer a.mk-drawer-link{
  display:flex;align-items:center;height:48px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--mk-ink);font-weight:500;
}
.mk-drawer a.mk-drawer-link:hover{background:var(--mk-bg-alt);}
.mk-drawer a.mk-drawer-link.is-active{
  color:var(--mk-primary);font-weight:600;background:var(--mk-primary-soft);
  box-shadow:inset 3px 0 0 var(--mk-primary);
}
.mk-drawer-cta{margin-top:auto;display:block;}
.mk-drawer-cta .mk-btn{width:100%;}

/* breadcrumb */
.mk-crumbs{
  padding:18px 0 0;font-size:13px;color:var(--mk-muted);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.mk-crumbs a{color:var(--mk-muted);}
.mk-crumbs a:hover{color:var(--mk-primary);}
.mk-crumbs span.current{color:var(--mk-ink);}

/* hero */
.mk-hero{padding:36px 0 0;}
.mk-hero-grid{display:flex;gap:40px;align-items:center;}
.mk-hero-copy{flex:1 1 58%;min-width:0;}
.mk-hero-visual{flex:1 1 42%;min-width:0;}
.mk-hero h1{
  font-size:44px;line-height:1.22;font-weight:700;letter-spacing:-.01em;
  color:var(--mk-ink);margin:16px 0 18px;
}
.mk-hero p.sub{font-size:18px;line-height:1.7;color:var(--mk-body);max-width:560px;}
.mk-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.mk-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;padding-top:24px;border-top:1px solid var(--mk-line);}
.mk-stat b{display:block;font-size:24px;font-weight:700;color:var(--mk-primary);line-height:1.3;}
.mk-stat span{font-size:13px;color:var(--mk-muted);}
.mk-hero-media{
  border-radius:var(--mk-r-lg);overflow:hidden;box-shadow:var(--mk-sh-1);
  border:1px solid var(--mk-line);background:#fff;
}
.mk-hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.mk-hero-note{
  margin-top:16px;background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-md);
  padding:14px 16px;font-size:13px;color:var(--mk-muted);box-shadow:var(--mk-sh-1);
}
.mk-hero-note strong{color:var(--mk-ink);font-size:14px;display:block;margin-bottom:4px;}

/* price cards */
.mk-price-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;margin-top:8px;
}
.mk-price-card{
  position:relative;background:var(--mk-surface);border:1px solid var(--mk-line);
  border-radius:var(--mk-r-lg);padding:28px 24px;box-shadow:var(--mk-sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;height:100%;
}
.mk-price-card:hover{transform:translateY(-2px);box-shadow:var(--mk-sh-2);}
.mk-price-card.is-featured{
  border:2px solid var(--mk-primary);transform:translateY(-8px);
  box-shadow:var(--mk-sh-2);
}
.mk-price-card.is-featured:hover{transform:translateY(-10px);}
.mk-price-flag{
  position:absolute;top:-13px;left:24px;
  background:var(--mk-accent);color:#fff;font-size:12px;font-weight:600;
  padding:3px 12px;border-radius:999px;
}
.mk-price-name{font-size:18px;font-weight:700;color:var(--mk-ink);}
.mk-price-desc{font-size:13px;color:var(--mk-muted);margin-top:6px;min-height:42px;}
.mk-price-amount{display:flex;align-items:baseline;gap:6px;margin:16px 0 4px;}
.mk-price-amount b{font-size:34px;font-weight:700;color:var(--mk-ink);line-height:1.1;}
.mk-price-amount em{font-style:normal;font-size:13px;color:var(--mk-muted);}
.mk-price-list{margin:18px 0 24px;display:grid;gap:10px;}
.mk-price-list li{display:flex;gap:10px;font-size:14px;color:var(--mk-body);line-height:1.6;}
.mk-price-list i{color:var(--mk-primary);font-size:13px;margin-top:4px;flex:0 0 auto;}
.mk-price-card .mk-btn{width:100%;margin-top:auto;}

/* compare table */
.mk-table-wrap{
  background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);
  box-shadow:var(--mk-sh-1);overflow:hidden;
}
.mk-table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.mk-compare{width:100%;min-width:720px;border-collapse:collapse;font-size:14px;}
.mk-compare th,.mk-compare td{
  padding:14px 18px;text-align:left;border-bottom:1px solid var(--mk-line);
}
.mk-compare thead th{
  background:var(--mk-bg-alt);color:var(--mk-ink);font-weight:600;font-size:14px;white-space:nowrap;
}
.mk-compare tbody tr:nth-child(even){background:#FAFCFE;}
.mk-compare tbody tr:hover{background:var(--mk-primary-soft);}
.mk-compare td:first-child{color:var(--mk-ink);font-weight:500;}
.mk-compare .mk-yes{color:var(--mk-primary);font-weight:600;}
.mk-compare .mk-no{color:var(--mk-muted);}
.mk-table-hint{display:none;font-size:13px;color:var(--mk-muted);padding:10px 16px;border-top:1px solid var(--mk-line);}

/* fee notes */
.mk-note-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.mk-note{
  background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-md);
  padding:22px 20px;box-shadow:var(--mk-sh-1);transition:border-color .2s ease,transform .2s ease;
}
.mk-note:hover{border-color:var(--mk-primary);transform:translateY(-2px);}
.mk-note b{
  display:block;font-size:13px;color:var(--mk-accent);letter-spacing:.08em;margin-bottom:10px;
}
.mk-note h3{font-size:17px;font-weight:600;color:var(--mk-ink);margin-bottom:8px;}
.mk-note p{font-size:14px;line-height:1.7;color:var(--mk-body);}

/* form */
.mk-form-block{
  display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start;
  background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);
  padding:32px;box-shadow:var(--mk-sh-1);
}
.mk-form-side h2{font-size:26px;line-height:1.32;color:var(--mk-ink);font-weight:700;}
.mk-form-side p{margin-top:12px;font-size:15px;color:var(--mk-body);}
.mk-form-side ul{margin-top:20px;display:grid;gap:10px;}
.mk-form-side li{display:flex;gap:10px;font-size:14px;color:var(--mk-body);}
.mk-form-side li i{color:var(--mk-primary);margin-top:4px;font-size:13px;}
.mk-field{margin-bottom:16px;}
.mk-field label{
  display:block;font-size:13px;color:var(--mk-muted);margin-bottom:6px;font-weight:500;
}
.mk-field input,.mk-field select,.mk-field textarea{
  width:100%;height:44px;padding:0 14px;border-radius:10px;border:1px solid #CBD8E6;
  background:#fff;font-size:15px;color:var(--mk-ink);font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.mk-field textarea{height:96px;padding:12px 14px;line-height:1.6;resize:vertical;}
.mk-field input:focus,.mk-field select:focus,.mk-field textarea:focus{
  outline:none;border-color:var(--mk-primary);box-shadow:0 0 0 3px var(--mk-primary-soft);
}
.mk-form-tip{font-size:13px;color:var(--mk-muted);margin-top:12px;}
.mk-form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}

/* faq */
.mk-faq{background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);overflow:hidden;box-shadow:var(--mk-sh-1);}
.mk-acc{margin:0;border:0;background:transparent;}
.mk-acc .accordion-item{border:0;border-bottom:1px solid var(--mk-line);}
.mk-acc .accordion-item:last-child{border-bottom:0;}
.mk-acc .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  min-height:56px;padding:14px 22px;font-size:16px;font-weight:600;color:var(--mk-ink);
  background:transparent;border:0;border-left:3px solid transparent;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.mk-acc .accordion-title:hover{color:var(--mk-primary);background:#FAFCFE;}
.mk-acc .accordion-title::before{
  content:"+";float:none;position:static;order:2;
  font-size:18px;color:var(--mk-muted);font-weight:400;margin:0;width:auto;
  transition:color .2s ease;
}
.mk-acc .accordion-item.is-active .accordion-title{
  border-left-color:var(--mk-primary);color:var(--mk-primary);
}
.mk-acc .accordion-item.is-active .accordion-title::before{content:"–";color:var(--mk-primary);}
.mk-acc .accordion-content{
  padding:0 22px 20px;border:0;background:transparent;
  font-size:15px;line-height:1.8;color:var(--mk-body);
}
.mk-acc .accordion-content p{margin:0;}

/* related links */
.mk-links-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.mk-link-card{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-md);
  padding:18px 20px;box-shadow:var(--mk-sh-1);color:var(--mk-ink);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.mk-link-card:hover{border-color:var(--mk-primary);transform:translateY(-2px);box-shadow:var(--mk-sh-2);color:var(--mk-primary);}
.mk-link-card b{font-size:16px;font-weight:600;display:block;}
.mk-link-card span{font-size:13px;color:var(--mk-muted);display:block;margin-top:2px;font-weight:400;}
.mk-link-card i{color:var(--mk-primary);font-size:13px;}

/* cta */
.mk-cta{
  background:var(--mk-bg-alt);border-top:1px solid var(--mk-line);border-bottom:1px solid var(--mk-line);
  padding:48px 0;
}
.mk-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.mk-cta-inner h2{font-size:26px;line-height:1.3;color:var(--mk-ink);font-weight:700;}
.mk-cta-inner p{font-size:15px;color:var(--mk-body);margin-top:8px;}

/* footer */
.mk-footer{background:var(--mk-night);color:#A9B8CB;padding:56px 0 24px;font-size:14px;}
.mk-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.mk-footer .mk-logo{color:#fff;font-size:18px;margin-bottom:16px;}
.mk-footer .mk-logo:hover{color:#fff;}
.mk-footer-brand p{line-height:1.8;color:#A9B8CB;font-size:14px;}
.mk-footer-contact{margin-top:14px;}
.mk-footer-contact strong{color:#fff;font-weight:600;}
.mk-footer h4{font-size:14px;font-weight:600;color:rgba(255,255,255,.8);margin:0 0 16px;}
.mk-footer ul{display:grid;gap:10px;}
.mk-footer ul a{color:#A9B8CB;font-size:14px;}
.mk-footer ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.mk-footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:#8FA2B8;
}
.mk-footer-bottom a{color:#A9B8CB;}
.mk-footer-bottom a:hover{color:#fff;}

/* back to top */
.mk-top{
  position:fixed;right:20px;bottom:20px;width:44px;height:44px;border-radius:12px;
  background:#fff;border:1px solid var(--mk-line);color:var(--mk-primary);
  display:none;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:var(--mk-sh-2);z-index:70;transition:transform .2s ease,background .2s ease;
}
.mk-top:hover{background:var(--mk-primary-soft);transform:translateY(-2px);}
.mk-top.is-show{display:inline-flex;}

/* responsive */
@media (max-width:1024px){
  .mk-menu{display:none;}
  .mk-burger{display:inline-flex;}
  .mk-nav-textlink{display:none;}
  .mk-section{padding:64px 0;}
  .mk-hero-grid{flex-direction:column;align-items:stretch;gap:32px;}
  .mk-hero h1{font-size:34px;}
  .mk-hero-visual{order:2;}
  .mk-price-grid{grid-template-columns:1fr;gap:18px;}
  .mk-price-card.is-featured{transform:none;}
  .mk-price-card.is-featured:hover{transform:translateY(-2px);}
  .mk-note-grid{grid-template-columns:repeat(2,1fr);}
  .mk-form-block{grid-template-columns:1fr;gap:24px;padding:24px;}
  .mk-links-grid{grid-template-columns:repeat(2,1fr);}
  .mk-footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .mk-table-hint{display:block;}
}
@media (max-width:520px){
  .mk-container{padding:0 20px;}
  .mk-section{padding:48px 0;}
  .mk-hero{padding-top:22px;}
  .mk-hero h1{font-size:30px;}
  .mk-hero p.sub{font-size:16px;}
  .mk-h2{font-size:24px;}
  .mk-stats{gap:20px;}
  .mk-stat b{font-size:22px;}
  .mk-note-grid{grid-template-columns:1fr;}
  .mk-links-grid{grid-template-columns:1fr;}
  .mk-form-row{grid-template-columns:1fr;}
  .mk-footer-grid{grid-template-columns:1fr;}
  .mk-cta-inner h2{font-size:22px;}
  .mk-hero-actions .mk-btn{width:100%;}
}

/* roulang page: category6 */
:root{
  --mk-primary:#1F5DA8;
  --mk-primary-strong:#174A87;
  --mk-primary-soft:#E8F0FA;
  --mk-accent:#D08A2C;
  --mk-accent-soft:#FBF0DE;
  --mk-ink:#0F1B2B;
  --mk-body:#3C4B5E;
  --mk-muted:#6B7B90;
  --mk-line:#E2E8F0;
  --mk-line-strong:#CBD8E6;
  --mk-bg:#F5F8FC;
  --mk-surface:#FFFFFF;
  --mk-bg-alt:#EDF3FA;
  --mk-night:#10233A;
  --mk-r-sm:8px;
  --mk-r-md:12px;
  --mk-r-lg:16px;
  --mk-r-xl:22px;
  --mk-sh-1:0 1px 2px rgba(15,27,43,.05),0 6px 16px rgba(15,27,43,.06);
  --mk-sh-2:0 2px 6px rgba(15,27,43,.07),0 14px 32px rgba(15,27,43,.09);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--mk-body);
  background:var(--mk-bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
h1,h2,h3,h4,h5{color:var(--mk-ink);margin:0;font-weight:700;letter-spacing:-0.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--mk-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--mk-primary-strong);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--mk-primary);outline-offset:2px;}
.mk-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.mk-section{padding:88px 0;}
.mk-section-white{background:#fff;}
.mk-section-alt{background:var(--mk-bg-alt);}
.mk-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;
  background:var(--mk-primary-soft);color:var(--mk-primary);font-size:12px;font-weight:600;letter-spacing:.04em;
}

/* ---------- header ---------- */
.mk-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--mk-line);}
.mk-nav-inner{display:grid;grid-template-columns:7fr 5fr;align-items:center;min-height:64px;gap:24px;}
.mk-nav-left{display:flex;align-items:center;gap:34px;min-width:0;}
.mk-nav-right{display:flex;align-items:center;justify-content:flex-end;gap:14px;}
.mk-logo{display:inline-flex;align-items:center;gap:10px;color:var(--mk-ink);font-weight:700;font-size:18px;letter-spacing:-0.01em;white-space:nowrap;}
.mk-logo:hover{color:var(--mk-primary);}
.mk-logo-mark{width:24px;height:24px;border-radius:6px;background:var(--mk-primary);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;transition:background .2s ease;}
.mk-logo:hover .mk-logo-mark{background:var(--mk-primary-strong);}
.mk-logo-mark svg{width:17px;height:17px;}
.mk-menu{display:flex;align-items:center;gap:26px;}
.mk-menu a{position:relative;font-size:15px;font-weight:500;color:var(--mk-ink);padding:8px 0;white-space:nowrap;}
.mk-menu a::after{content:"";position:absolute;left:0;bottom:2px;width:0;height:2px;border-radius:2px;background:var(--mk-primary);transition:width .22s ease;}
.mk-menu a:hover{color:var(--mk-primary);}
.mk-menu a:hover::after{width:100%;}
.mk-menu a.is-active{color:var(--mk-primary);}
.mk-menu a.is-active::after{width:100%;}
.mk-icon-btn{width:40px;height:40px;border-radius:10px;border:1px solid transparent;background:transparent;display:inline-flex;align-items:center;justify-content:center;color:var(--mk-body);cursor:pointer;transition:background .2s ease,color .2s ease;}
.mk-icon-btn:hover{background:var(--mk-primary-soft);color:var(--mk-primary);}
.mk-icon-btn svg{width:18px;height:18px;}
.mk-nav-link{font-size:14px;color:var(--mk-muted);white-space:nowrap;}
.mk-nav-link:hover{color:var(--mk-primary);}
.mk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
  border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.mk-btn svg{width:15px;height:15px;flex:0 0 auto;}
.mk-btn-primary{background:var(--mk-primary);color:#fff;box-shadow:var(--mk-sh-1);}
.mk-btn-primary:hover{background:var(--mk-primary-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--mk-sh-2);}
.mk-btn-primary:active{transform:translateY(0);box-shadow:var(--mk-sh-1);}
.mk-btn-ghost{background:#fff;color:var(--mk-ink);border-color:var(--mk-line-strong);}
.mk-btn-ghost:hover{color:var(--mk-primary);border-color:var(--mk-primary);transform:translateY(-1px);box-shadow:var(--mk-sh-1);}
.mk-btn-ghost:active{transform:translateY(0);}
.mk-btn-sm{height:40px;padding:0 16px;font-size:14px;}
.mk-burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--mk-line);background:#fff;color:var(--mk-ink);align-items:center;justify-content:center;cursor:pointer;transition:.2s;}
.mk-burger:hover{border-color:var(--mk-primary);color:var(--mk-primary);}
.mk-burger svg{width:20px;height:20px;}

/* ---------- drawer ---------- */
.mk-backdrop{position:fixed;inset:0;background:rgba(15,27,43,.45);z-index:80;opacity:0;pointer-events:none;transition:opacity .25s ease;}
.mk-backdrop.is-show{opacity:1;pointer-events:auto;}
.mk-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .28s ease;display:flex;flex-direction:column;
  box-shadow:-10px 0 36px rgba(15,27,43,.16);
}
.mk-drawer.is-open{transform:translateX(0);}
.mk-drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 18px;border-bottom:1px solid var(--mk-line);}
.mk-drawer-head .mk-logo{font-size:16px;}
.mk-drawer-close{width:36px;height:36px;border-radius:9px;border:1px solid var(--mk-line);background:#fff;color:var(--mk-body);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;}
.mk-drawer-close:hover{color:var(--mk-primary);border-color:var(--mk-primary);}
.mk-drawer-close svg{width:16px;height:16px;}
.mk-drawer nav{padding:10px 0;overflow-y:auto;}
.mk-drawer nav a{display:flex;align-items:center;height:48px;padding:0 20px;border-left:3px solid transparent;font-size:16px;color:var(--mk-ink);font-weight:500;}
.mk-drawer nav a:hover{background:var(--mk-bg-alt);color:var(--mk-primary);}
.mk-drawer nav a.is-active{border-left-color:var(--mk-primary);color:var(--mk-primary);background:var(--mk-primary-soft);}
.mk-drawer-cta{margin-top:auto;padding:16px 20px;border-top:1px solid var(--mk-line);}
.mk-drawer-cta .mk-btn{width:100%;}

/* ---------- page hero ---------- */
.mk-page-hero{background:#fff;border-bottom:1px solid var(--mk-line);padding:44px 0 64px;}
.mk-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--mk-muted);margin-bottom:22px;}
.mk-crumb a{color:var(--mk-muted);}
.mk-crumb a:hover{color:var(--mk-primary);}
.mk-crumb .mk-sep{color:#B9C6D6;}
.mk-crumb .mk-current{color:var(--mk-body);}
.mk-page-hero h1{font-size:42px;line-height:1.22;letter-spacing:-0.01em;max-width:15em;}
.mk-lead{font-size:17px;line-height:1.85;color:var(--mk-body);margin-top:18px;max-width:40em;}
.mk-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.mk-metrics{display:flex;flex-wrap:wrap;margin-top:32px;}
.mk-metric{padding:0 26px;border-left:1px solid var(--mk-line);}
.mk-metric:first-child{padding-left:0;border-left:0;}
.mk-metric strong{display:block;font-size:24px;font-weight:700;color:var(--mk-primary);line-height:1.35;}
.mk-metric span{font-size:13px;color:var(--mk-muted);}
.mk-hero-media{border-radius:var(--mk-r-lg);overflow:hidden;border:1px solid var(--mk-line);box-shadow:var(--mk-sh-1);aspect-ratio:4/3;background:var(--mk-bg-alt);}
.mk-hero-media img{width:100%;height:100%;object-fit:cover;}

/* ---------- section head ---------- */
.mk-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px;}
.mk-section-head h2{font-size:30px;line-height:1.3;padding-left:16px;position:relative;}
.mk-section-head h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--mk-primary);}
.mk-section-head p{margin-top:10px;padding-left:16px;font-size:15px;color:var(--mk-muted);max-width:46em;}
.mk-link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--mk-primary);white-space:nowrap;}
.mk-link-more svg{width:14px;height:14px;transition:transform .2s ease;}
.mk-link-more:hover svg{transform:translateX(3px);}

/* ---------- filters ---------- */
.mk-filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.mk-chip{
  height:36px;padding:0 16px;border-radius:999px;border:1px solid var(--mk-line-strong);
  background:#fff;color:var(--mk-body);font-size:14px;font-weight:500;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.mk-chip:hover{border-color:var(--mk-primary);color:var(--mk-primary);}
.mk-chip.is-active{background:var(--mk-primary);border-color:var(--mk-primary);color:#fff;}
.mk-chip.is-active:hover{color:#fff;}
.mk-chip:active{transform:scale(.98);}
.mk-filter-note{font-size:13px;color:var(--mk-muted);margin-bottom:18px;}

/* ---------- archive list ---------- */
.mk-files-panel{background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);box-shadow:var(--mk-sh-1);padding:6px 26px;overflow:hidden;}
.mk-file{
  display:grid;grid-template-columns:48px 1fr auto;gap:22px;align-items:center;
  padding:22px 8px;border-bottom:1px solid var(--mk-line);
  transition:background .2s ease;border-radius:10px;
}
.mk-file:last-child{border-bottom:0;}
.mk-file:hover{background:var(--mk-primary-soft);}
.mk-file-date{
  width:48px;height:48px;border-radius:10px;background:var(--mk-bg-alt);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;
  color:var(--mk-primary);line-height:1.1;transition:background .2s ease;
}
.mk-file:hover .mk-file-date{background:#fff;}
.mk-file-date strong{font-size:16px;font-weight:700;}
.mk-file-date span{font-size:10px;color:var(--mk-muted);letter-spacing:.02em;}
.mk-file-main h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:5px;}
.mk-file-main h3 a{color:var(--mk-ink);}
.mk-file:hover .mk-file-main h3 a{color:var(--mk-primary);}
.mk-file-main p{
  font-size:14px;line-height:1.7;color:var(--mk-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mk-file-side{display:flex;align-items:center;gap:16px;}
.mk-tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--mk-primary-soft);color:var(--mk-primary);font-size:12px;font-weight:500;white-space:nowrap;}
.mk-file:hover .mk-tag{background:#fff;}
.mk-file-go{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--mk-line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--mk-primary);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.mk-file-go svg{width:15px;height:15px;}
.mk-file:hover .mk-file-go{background:var(--mk-primary);border-color:var(--mk-primary);color:#fff;}

/* ---------- pager ---------- */
.mk-pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:32px;flex-wrap:wrap;}
.mk-page-btn{
  min-width:36px;height:36px;padding:0 12px;border-radius:8px;border:1px solid var(--mk-line);
  background:#fff;color:var(--mk-body);font-size:14px;display:inline-flex;align-items:center;justify-content:center;
  transition:.2s ease;cursor:pointer;
}
.mk-page-btn:hover{border-color:var(--mk-primary);color:var(--mk-primary);}
.mk-page-btn.is-active{background:var(--mk-primary);border-color:var(--mk-primary);color:#fff;}
.mk-page-btn.is-disabled{opacity:.45;pointer-events:none;}

/* ---------- related ---------- */
.mk-related{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;margin-top:30px;
  padding:18px 22px;background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-md);
}
.mk-related-title{font-size:13px;font-weight:600;color:var(--mk-muted);letter-spacing:.04em;}
.mk-related a{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--mk-primary);}
.mk-related a svg{width:13px;height:13px;}
.mk-related a:hover{color:var(--mk-primary-strong);}

/* ---------- value block ---------- */
.mk-value-media{border-radius:var(--mk-r-lg);overflow:hidden;border:1px solid var(--mk-line);box-shadow:var(--mk-sh-1);aspect-ratio:4/3;background:var(--mk-bg-alt);}
.mk-value-media img{width:100%;height:100%;object-fit:cover;}
.mk-steps{margin-top:8px;}
.mk-step{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--mk-line);}
.mk-step:last-child{border-bottom:0;}
.mk-step-no{
  flex:0 0 32px;width:32px;height:32px;border-radius:9px;background:var(--mk-primary-soft);
  color:var(--mk-primary);font-size:13px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;
  margin-top:3px;
}
.mk-step h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:4px;}
.mk-step p{font-size:14px;line-height:1.75;color:var(--mk-muted);}
.mk-stat-row{display:grid;grid-template-columns:repeat(3,1fr);margin-top:40px;border-top:1px solid var(--mk-line);padding-top:28px;}
.mk-stat{padding:0 24px;border-left:1px solid var(--mk-line);}
.mk-stat:first-child{padding-left:0;border-left:0;}
.mk-stat strong{display:block;font-size:28px;font-weight:700;color:var(--mk-ink);line-height:1.3;}
.mk-stat strong em{font-style:normal;color:var(--mk-accent);font-size:18px;margin-left:4px;font-weight:600;}
.mk-stat span{font-size:13px;color:var(--mk-muted);}

/* ---------- faq ---------- */
.mk-faq{border-top:1px solid var(--mk-line);}
.mk-faq-item{border-bottom:1px solid var(--mk-line);}
.mk-faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 4px 18px 13px;background:none;border:0;border-left:3px solid transparent;
  text-align:left;font-size:16px;font-weight:600;color:var(--mk-ink);line-height:1.6;
  cursor:pointer;transition:color .2s ease,border-color .2s ease;
}
.mk-faq-q:hover{color:var(--mk-primary);}
.mk-faq-item.is-open .mk-faq-q{color:var(--mk-primary);border-left-color:var(--mk-primary);}
.mk-faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;}
.mk-faq-icon::before,.mk-faq-icon::after{content:"";position:absolute;background:var(--mk-primary);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.mk-faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.mk-faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.mk-faq-item.is-open .mk-faq-icon::after{transform:rotate(90deg);opacity:0;}
.mk-faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.mk-faq-a p{padding:0 40px 20px 16px;font-size:15px;line-height:1.85;color:var(--mk-muted);}

/* ---------- cta ---------- */
.mk-cta{background:var(--mk-bg-alt);border-top:1px solid var(--mk-line);}
.mk-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;padding:46px 0;}
.mk-cta-inner h2{font-size:26px;line-height:1.35;}
.mk-cta-inner p{margin-top:8px;font-size:15px;color:var(--mk-muted);max-width:42em;}
.mk-cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.mk-footer{background:var(--mk-night);color:#A9B8CB;padding:64px 0 0;}
.mk-footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;}
.mk-footer-brand .mk-logo{color:#fff;}
.mk-footer-brand .mk-logo:hover{color:#fff;}
.mk-footer-brand .mk-logo-mark{background:var(--mk-primary);}
.mk-footer-brand p{font-size:14px;line-height:1.85;margin-top:16px;max-width:34em;color:#A9B8CB;}
.mk-footer-contact strong{color:rgba(255,255,255,.88);font-weight:600;}
.mk-footer h4{color:rgba(255,255,255,.92);font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.02em;}
.mk-footer ul li{margin-bottom:10px;}
.mk-footer ul li:last-child{margin-bottom:0;}
.mk-footer ul a{color:#A9B8CB;font-size:14px;}
.mk-footer ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.mk-footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA0B6;
}
.mk-footer-bottom a{color:#8FA0B6;}
.mk-footer-bottom a:hover{color:#fff;}

/* ---------- back to top ---------- */
.mk-top{
  position:fixed;right:20px;bottom:24px;width:44px;height:44px;border-radius:12px;
  background:#fff;border:1px solid var(--mk-line);box-shadow:var(--mk-sh-2);color:var(--mk-primary);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;z-index:70;
  opacity:0;pointer-events:none;transform:translateY(8px);transition:opacity .25s ease,transform .25s ease;
}
.mk-top.is-show{opacity:1;pointer-events:auto;transform:translateY(0);}
.mk-top:hover{background:var(--mk-primary-soft);}
.mk-top svg{width:18px;height:18px;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .mk-menu{gap:20px;}
  .mk-menu a{font-size:14px;}
}
@media (max-width:1023px){
  .mk-nav-inner{grid-template-columns:1fr auto;min-height:60px;}
  .mk-menu{display:none;}
  .mk-burger{display:inline-flex;}
  .mk-nav-link{display:none;}
  .mk-nav-right{gap:10px;}
  .mk-page-hero{padding:32px 0 48px;}
  .mk-page-hero h1{font-size:34px;max-width:20em;}
  .mk-hero-media{margin-top:32px;}
  .mk-section{padding:64px 0;}
  .mk-section-head h2{font-size:26px;}
  .mk-footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .mk-stat-row{padding-top:24px;margin-top:32px;}
}
@media (max-width:767px){
  .mk-nav-right .mk-btn-sm{display:none;}
  .mk-file{grid-template-columns:48px 1fr;gap:12px 16px;align-items:start;padding:18px 4px;}
  .mk-file-side{grid-column:2;justify-content:flex-start;}
  .mk-files-panel{padding:4px 16px;}
  .mk-file-main h3{font-size:16px;}
  .mk-stat-row{grid-template-columns:1fr;gap:0;}
  .mk-stat{padding:16px 0;border-left:0;border-top:1px solid var(--mk-line);}
  .mk-stat:first-child{border-top:0;padding-top:0;}
  .mk-cta-inner{padding:36px 0;}
  .mk-cta-inner h2{font-size:22px;}
  .mk-faq-a p{padding-right:16px;}
}
@media (max-width:639px){
  .mk-container{padding:0 20px;}
  .mk-page-hero h1{font-size:30px;letter-spacing:-0.005em;}
  .mk-lead{font-size:16px;}
  .mk-section{padding:44px 0;}
  .mk-section-head{margin-bottom:24px;}
  .mk-section-head h2{font-size:23px;}
  .mk-section-head p{padding-left:0;font-size:14px;}
  .mk-metrics{margin-top:26px;}
  .mk-metric{padding:0 14px;}
  .mk-metric strong{font-size:20px;}
  .mk-metric span{font-size:12px;}
  .mk-hero-actions .mk-btn{flex:1 1 auto;}
  .mk-footer{padding:48px 0 0;}
  .mk-footer-grid{grid-template-columns:1fr;gap:28px;}
  .mk-footer-bottom{margin-top:32px;flex-direction:column;align-items:flex-start;gap:8px;}
  .mk-related{padding:16px;}
  .mk-faq-q{font-size:15px;}
  .mk-top{right:14px;bottom:16px;}
}