/* roulang page: index */
/* ============ 1. 设计变量 ============ */
:root{
  --mk-primary:#1B62D6;
  --mk-primary-700:#144FAF;
  --mk-primary-50:#EAF1FE;
  --mk-accent:#FF7A2F;
  --mk-accent-700:#E8631A;
  --mk-success:#12A36B;
  --mk-star:#F5A524;
  --mk-ink:#16202E;
  --mk-ink-2:#55607A;
  --mk-ink-3:#8A94A6;
  --mk-bg:#F5F7FA;
  --mk-surface:#FFFFFF;
  --mk-line:#E5E9F0;
  --mk-dark:#14202E;
  --mk-r-sm:8px;
  --mk-r-md:10px;
  --mk-r-lg:16px;
  --mk-r-pill:999px;
  --mk-shadow-1:0 1px 2px rgba(16,24,40,.06), 0 8px 24px rgba(16,24,40,.06);
  --mk-shadow-2:0 12px 32px rgba(16,24,40,.12);
  --mk-space:96px;
  --mk-gutter:24px;
  --mk-max:1200px;
}
/* ============ 2. 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--mk-ink);
  background:var(--mk-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--mk-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--mk-primary-700)}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--mk-ink);font-weight:700}
h1{font-size:clamp(30px,4.4vw,52px);letter-spacing:-.5px}
h2{font-size:clamp(24px,2.6vw,34px)}
h3{font-size:21px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--mk-accent);outline-offset:2px}
.mk-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* ============ 3. 容器与栅格 ============ */
.mk-container{width:100%;max-width:var(--mk-max);margin:0 auto;padding:0 var(--mk-gutter)}
.mk-section{padding:var(--mk-space) 0}
.mk-section--tight{padding:64px 0}
.mk-section--plain{background:var(--mk-surface)}
.mk-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.mk-section-head p{margin-top:10px;color:var(--mk-ink-2);font-size:15px;max-width:640px}
.mk-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--mk-primary);background:var(--mk-primary-50);border-radius:var(--mk-r-pill);padding:5px 14px;margin-bottom:16px;letter-spacing:.3px}
.mk-eyebrow i{font-size:12px}
/* ============ 4. 顶部信息条 ============ */
.mk-topbar{height:36px;background:var(--mk-dark);color:#C9D3E2;font-size:13px;display:flex;align-items:center}
.mk-topbar .mk-container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.mk-topbar b{color:#fff;font-weight:600}
.mk-topbar a{color:#FFB183;font-size:13px}
.mk-topbar a:hover{color:#fff}
/* ============ 5. 导航 ============ */
.mk-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--mk-line);transition:box-shadow .25s ease}
.mk-header.is-scrolled{box-shadow:var(--mk-shadow-1)}
.mk-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.mk-logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--mk-ink);font-size:18px;line-height:1.15;letter-spacing:-.2px}
.mk-logo:hover{color:var(--mk-ink)}
.mk-logo-mark{width:38px;height:38px;border-radius:11px;background:var(--mk-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;flex:none;box-shadow:0 6px 16px rgba(27,98,214,.28)}
.mk-logo-text small{display:block;font-size:11px;font-weight:500;color:var(--mk-ink-3);letter-spacing:1px}
.mk-nav-links{display:flex;align-items:center;gap:28px}
.mk-nav-links a{color:var(--mk-ink-2);font-size:15px;font-weight:500;position:relative;padding:6px 0}
.mk-nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--mk-primary);border-radius:2px;transform:scaleX(0);transition:transform .22s ease}
.mk-nav-links a:hover{color:var(--mk-primary)}
.mk-nav-links a:hover::after,.mk-nav-links a.is-active::after{transform:scaleX(1)}
.mk-nav-links a.is-active{color:var(--mk-primary);font-weight:600}
.mk-nav-actions{display:flex;align-items:center;gap:12px}
.mk-nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--mk-line);background:#fff;border-radius:var(--mk-r-md);color:var(--mk-ink);align-items:center;justify-content:center;font-size:17px}
/* ============ 6. 按钮 ============ */
.mk-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--mk-r-md);font-size:15px;font-weight:600;border:1.5px solid transparent;transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;white-space:nowrap}
.mk-btn i{font-size:14px}
.mk-btn--primary{background:var(--mk-primary);color:#fff;box-shadow:0 6px 18px rgba(27,98,214,.24)}
.mk-btn--primary:hover{background:var(--mk-primary-700);color:#fff;transform:translateY(-1px)}
.mk-btn--accent{background:var(--mk-accent);color:#fff;box-shadow:0 6px 18px rgba(255,122,47,.28)}
.mk-btn--accent:hover{background:var(--mk-accent-700);color:#fff;transform:translateY(-1px)}
.mk-btn--ghost{background:#fff;border-color:var(--mk-line);color:var(--mk-ink)}
.mk-btn--ghost:hover{border-color:var(--mk-primary);background:var(--mk-primary-50);color:var(--mk-primary);transform:translateY(-1px)}
.mk-btn--lg{height:52px;padding:0 30px;font-size:16px}
.mk-btn--block{width:100%}
.mk-btn:active{transform:translateY(0)}
.mk-link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--mk-primary)}
.mk-link-more i{transition:transform .2s ease;font-size:12px}
.mk-link-more:hover i{transform:translateX(4px)}
/* ============ 7. Hero ============ */
.mk-hero{position:relative;padding:72px 0 88px;background-color:#fff;background-image:linear-gradient(180deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.86) 58%,rgba(255,255,255,1) 100%),url(/assets/images/backpic/back-1.webp);background-size:cover;background-position:center;overflow:hidden}
.mk-hero-grid{display:grid;grid-template-columns:6fr 5fr;gap:56px;align-items:center}
.mk-hero h1{margin-bottom:18px}
.mk-hero h1 em{font-style:normal;color:var(--mk-primary);position:relative}
.mk-hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:10px;background:rgba(255,122,47,.22);border-radius:4px;z-index:-1}
.mk-hero-sub{font-size:18px;line-height:1.7;color:var(--mk-ink-2);max-width:560px;margin-bottom:28px}
.mk-hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.mk-trust{display:flex;flex-wrap:wrap;gap:10px}
.mk-trust-item{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-pill);padding:7px 15px;font-size:13px;color:var(--mk-ink-2);box-shadow:0 1px 2px rgba(16,24,40,.04)}
.mk-trust-item i{color:var(--mk-success);font-size:12px}
.mk-trust-item b{color:var(--mk-ink);font-weight:600;font-variant-numeric:tabular-nums}
.mk-hero-visual{position:relative}
.mk-hero-visual img{width:100%;height:auto;border-radius:20px;box-shadow:0 24px 60px rgba(16,24,40,.18);border:6px solid #fff;object-fit:cover}
.mk-hero-badge{position:absolute;left:-14px;bottom:26px;background:#fff;border-radius:var(--mk-r-lg);box-shadow:var(--mk-shadow-2);padding:14px 18px;display:flex;align-items:center;gap:12px}
.mk-hero-badge i{width:36px;height:36px;border-radius:10px;background:var(--mk-accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px}
.mk-hero-badge span{font-size:13px;color:var(--mk-ink-2);display:block}
.mk-hero-badge strong{font-size:15px;color:var(--mk-ink);font-variant-numeric:tabular-nums}
/* ============ 8. 价值主张区 ============ */
.mk-value-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch}
.mk-value-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.mk-card{background:var(--mk-surface);border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);box-shadow:var(--mk-shadow-1);transition:transform .25s ease,box-shadow .25s ease}
.mk-card:hover{transform:translateY(-2px);box-shadow:var(--mk-shadow-2)}
.mk-value-wide{padding:36px;display:flex;flex-direction:column;justify-content:space-between;background-image:linear-gradient(135deg,rgba(27,98,214,.06),rgba(255,255,255,0) 60%)}
.mk-value-wide h3{font-size:24px;margin-bottom:12px}
.mk-value-wide p{color:var(--mk-ink-2);font-size:15.5px;max-width:520px}
.mk-ico{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:18px;background:var(--mk-primary-50);color:var(--mk-primary);margin-bottom:18px}
.mk-ico--accent{background:rgba(255,122,47,.12);color:var(--mk-accent)}
.mk-ico--success{background:rgba(18,163,107,.12);color:var(--mk-success)}
.mk-value-num{font-size:34px;font-weight:700;color:var(--mk-ink);font-variant-numeric:tabular-nums;line-height:1}
.mk-value-num small{font-size:14px;font-weight:500;color:var(--mk-ink-3);margin-left:6px}
.mk-value-side .mk-card{padding:26px;display:flex;flex-direction:column;justify-content:center}
.mk-value-side h3{font-size:18px;margin-bottom:8px}
.mk-value-side p{font-size:14.5px;color:var(--mk-ink-2)}
.mk-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.mk-tag{display:inline-flex;align-items:center;gap:6px;background:var(--mk-bg);border:1px solid var(--mk-line);color:var(--mk-ink-2);border-radius:var(--mk-r-pill);padding:5px 13px;font-size:12.5px}
.mk-tag--solid{background:var(--mk-primary-50);border-color:transparent;color:var(--mk-primary);font-weight:600}
/* ============ 9. 轮播 ============ */
.mk-orbit{margin:0}
.mk-orbit .orbit-container{border-radius:var(--mk-r-lg);overflow:hidden;background:#fff;border:1px solid var(--mk-line);box-shadow:var(--mk-shadow-1);height:auto}
.mk-orbit .orbit-slide{background:#fff}
.mk-shot{display:block;position:relative}
.mk-shot img{width:100%;height:420px;object-fit:cover}
.mk-shot figcaption{position:absolute;left:20px;bottom:20px;background:rgba(20,32,46,.86);color:#fff;font-size:14px;font-weight:600;padding:9px 16px;border-radius:var(--mk-r-pill);backdrop-filter:none}
.mk-orbit .orbit-bullets{margin-top:20px;text-align:left;display:flex;gap:8px}
.mk-orbit .orbit-bullets button{width:44px;height:6px;border-radius:3px;background:#D7DEE9;margin:0;opacity:1;transition:background .2s ease,width .2s ease}
.mk-orbit .orbit-bullets button.is-active{background:var(--mk-accent);width:64px}
.mk-orbit .orbit-previous,.mk-orbit .orbit-next{background:rgba(20,32,46,.7);border-radius:var(--mk-r-md)}
/* ============ 10. 系统要求 ============ */
.mk-req-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.mk-req{padding:32px}
.mk-req--hi{border-color:rgba(27,98,214,.35);box-shadow:0 10px 30px rgba(27,98,214,.10)}
.mk-req-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.mk-req-head h3{font-size:19px}
.mk-badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;border-radius:var(--mk-r-sm);padding:5px 11px;background:var(--mk-bg);color:var(--mk-ink-2);border:1px solid var(--mk-line)}
.mk-badge--ok{background:rgba(18,163,107,.1);color:var(--mk-success);border-color:transparent}
.mk-badge--brand{background:var(--mk-primary-50);color:var(--mk-primary);border-color:transparent}
.mk-dl{margin:0}
.mk-dl div{display:flex;align-items:baseline;justify-content:space-between;gap:20px;padding:13px 0;border-bottom:1px solid var(--mk-line)}
.mk-dl div:last-child{border-bottom:0}
.mk-dl dt{font-size:14.5px;color:var(--mk-ink-3)}
.mk-dl dd{margin:0;font-size:14.5px;font-weight:600;color:var(--mk-ink);text-align:right;font-variant-numeric:tabular-nums}
/* ============ 11. 评价墙 ============ */
.mk-review-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.mk-review{padding:26px}
.mk-review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.mk-avatar{width:40px;height:40px;border-radius:50%;background:var(--mk-primary-50);color:var(--mk-primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:none}
.mk-review-top strong{display:block;font-size:15px;color:var(--mk-ink)}
.mk-stars{color:var(--mk-star);font-size:12px;letter-spacing:2px}
.mk-review p{font-size:15px;color:var(--mk-ink-2);margin-bottom:16px}
.mk-review-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.mk-review-foot time{font-size:13px;color:var(--mk-ink-3)}
/* ============ 12. 下载卡 ============ */
.mk-dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mk-dlcard{padding:28px;display:flex;flex-direction:column;height:100%}
.mk-dlcard .mk-ico{margin-bottom:16px}
.mk-dlcard h3{font-size:19px;margin-bottom:6px}
.mk-dlcard .mk-meta{font-size:13.5px;color:var(--mk-ink-3);margin-bottom:16px;font-variant-numeric:tabular-nums}
.mk-dlcard ul{margin-bottom:22px}
.mk-dlcard li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--mk-ink-2);padding:6px 0}
.mk-dlcard li i{color:var(--mk-success);font-size:12px}
.mk-dlcard .mk-btn{margin-top:auto}
.mk-form-wrap{margin-top:28px;background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);box-shadow:var(--mk-shadow-1);padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
.mk-form-wrap h3{font-size:19px;margin-bottom:8px}
.mk-form-wrap p{font-size:14.5px;color:var(--mk-ink-2)}
.mk-form{display:flex;gap:12px}
.mk-input{flex:1;height:46px;border:1.5px solid var(--mk-line);border-radius:var(--mk-r-md);padding:0 16px;font-size:15px;color:var(--mk-ink);background:#fff;transition:border-color .2s ease,box-shadow .2s ease}
.mk-input::placeholder{color:var(--mk-ink-3)}
.mk-input:focus{outline:none;border-color:var(--mk-primary);box-shadow:0 0 0 3px rgba(27,98,214,.14)}
.mk-form-msg{font-size:13.5px;color:var(--mk-success);margin-top:10px;min-height:18px}
.mk-form-msg.is-error{color:var(--mk-accent)}
/* ============ 13. 资讯列表 ============ */
.mk-post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mk-post{padding:0;overflow:hidden;display:flex;flex-direction:column;height:100%}
.mk-post-thumb{display:block;overflow:hidden}
.mk-post-thumb img{width:100%;height:186px;object-fit:cover;transition:transform .4s ease}
.mk-post:hover .mk-post-thumb img{transform:scale(1.05)}
.mk-post-body{padding:22px;display:flex;flex-direction:column;flex:1}
.mk-post-body h3{font-size:18px;line-height:1.45;margin-bottom:10px}
.mk-post-body h3 a{color:var(--mk-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mk-post-body h3 a:hover{color:var(--mk-primary)}
.mk-post-body p{font-size:14.5px;color:var(--mk-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px}
.mk-post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--mk-line)}
.mk-post-foot time{font-size:13px;color:var(--mk-ink-3);font-variant-numeric:tabular-nums}
.mk-empty{border:1.5px dashed var(--mk-line);border-radius:var(--mk-r-lg);min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:#fff;text-align:center;padding:32px}
.mk-empty i{font-size:34px;color:var(--mk-ink-3)}
.mk-empty p{color:var(--mk-ink-2);font-size:15px}
/* ============ 14. FAQ ============ */
.mk-faq .accordion{border:0;background:transparent}
.mk-faq .accordion-item{border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);background:#fff;margin-bottom:12px;box-shadow:var(--mk-shadow-1);overflow:hidden}
.mk-faq .accordion-title{font-size:17px;font-weight:500;color:var(--mk-ink);padding:20px 56px 20px 22px;border:0;line-height:1.5}
.mk-faq .accordion-title:hover{background:var(--mk-primary-50);color:var(--mk-primary)}
.mk-faq .accordion-title::before{content:"\002B";position:absolute;right:22px;top:50%;transform:translateY(-50%);color:var(--mk-accent);font-size:20px;font-weight:700;transition:transform .25s ease}
.mk-faq .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg)}
.mk-faq .accordion-content{padding:0 22px 22px;border:0;color:var(--mk-ink-2);font-size:15px;line-height:1.8}
/* ============ 15. 底部 CTA & 页脚 ============ */
.mk-cta{position:relative;background:var(--mk-dark);color:#fff;padding:64px 0;border-top:3px solid var(--mk-accent)}
.mk-cta .mk-container{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.mk-cta h2{color:#fff;font-size:clamp(22px,2.4vw,30px)}
.mk-cta p{color:#B9C4D4;margin-top:8px;font-size:15px}
.mk-footer{background:var(--mk-dark);color:#B9C4D4;font-size:14px;padding:56px 0 0}
.mk-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.mk-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.mk-footer .mk-logo{color:#fff;margin-bottom:14px}
.mk-footer .mk-logo small{color:#8A94A6}
.mk-footer p{font-size:13.5px;line-height:1.8;color:#8A94A6}
.mk-footer li{margin-bottom:10px}
.mk-footer a{color:#B9C4D4}
.mk-footer a:hover{color:var(--mk-accent)}
.mk-footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8A94A6}
/* ============ 16. 工具类 ============ */
.mk-mt-16{margin-top:16px}
.mk-mt-24{margin-top:24px}
.mk-mt-32{margin-top:32px}
.mk-center{text-align:center}
/* ============ 17. 响应式 ============ */
@media screen and (max-width:1200px){
  :root{--mk-max:1140px}
  .mk-post-grid{grid-template-columns:repeat(3,1fr)}
}
@media screen and (max-width:1024px){
  :root{--mk-space:72px}
  .mk-hero-grid{grid-template-columns:1fr;gap:40px}
  .mk-hero-visual{order:-1}
  .mk-value-grid{grid-template-columns:1fr}
  .mk-value-side{grid-template-rows:auto;grid-template-columns:1fr 1fr}
  .mk-dl-grid{grid-template-columns:1fr 1fr}
  .mk-post-grid{grid-template-columns:1fr 1fr}
  .mk-footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .mk-shot img{height:340px}
}
@media screen and (max-width:768px){
  :root{--mk-space:56px}
  .mk-nav-links{display:none;position:absolute;left:0;right:0;top:72px;background:#fff;border-bottom:1px solid var(--mk-line);flex-direction:column;align-items:stretch;gap:0;padding:12px 24px 20px;box-shadow:var(--mk-shadow-2)}
  .mk-nav-links a{padding:12px 0;border-bottom:1px solid var(--mk-line)}
  .mk-nav-links a::after{display:none}
  body.mk-nav-open .mk-nav-links{display:flex}
  .mk-nav-toggle{display:inline-flex}
  .mk-nav-actions .mk-btn--ghost{display:none}
  .mk-nav-actions .mk-btn--primary{height:42px;padding:0 16px;font-size:14px}
  .mk-logo-text{font-size:16px}
  .mk-req-grid,.mk-review-grid,.mk-dl-grid,.mk-post-grid,.mk-value-side{grid-template-columns:1fr}
  .mk-form-wrap{grid-template-columns:1fr}
  .mk-form{flex-direction:column}
  .mk-form .mk-btn{width:100%}
  .mk-hero{padding:48px 0 64px}
  .mk-hero-cta .mk-btn{width:100%}
  .mk-shot img{height:240px}
  .mk-section-head{flex-direction:column;align-items:flex-start}
  .mk-cta .mk-container{flex-direction:column;align-items:flex-start}
  .mk-cta .mk-btn{width:100%}
  .mk-footer-grid{grid-template-columns:1fr 1fr}
  .mk-hero-badge{left:8px;bottom:12px;padding:10px 14px}
}
@media screen and (max-width:520px){
  h1{font-size:28px}
  .mk-container{padding:0 18px}
  .mk-footer-grid{grid-template-columns:1fr}
  .mk-hero-badge{position:static;margin-top:14px}
  .mk-review-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* roulang page: article */
:root{
  --mk-primary:#1B62D6;
  --mk-primary-700:#144FAF;
  --mk-primary-50:#EAF1FE;
  --mk-accent:#FF7A2F;
  --mk-accent-700:#E5641C;
  --mk-success:#12A36B;
  --mk-star:#F5A524;
  --mk-ink:#16202E;
  --mk-ink-2:#55607A;
  --mk-ink-3:#8A94A6;
  --mk-bg:#F5F7FA;
  --mk-surface:#FFFFFF;
  --mk-line:#E5E9F0;
  --mk-dark:#14202E;
  --mk-r-sm:8px;
  --mk-r-md:10px;
  --mk-r-lg:16px;
  --mk-r-pill:999px;
  --mk-shadow-1:0 1px 2px rgba(16,24,40,.06),0 8px 24px rgba(16,24,40,.06);
  --mk-shadow-2:0 12px 32px rgba(16,24,40,.12);
  --mk-space-section:96px;
  --mk-container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--mk-ink);
  background:var(--mk-bg);
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--mk-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease;}
a:hover{color:var(--mk-primary-700);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--mk-accent);outline-offset:2px;}
.mk-container{width:100%;max-width:var(--mk-container);margin:0 auto;padding:0 24px;}

/* header */
.mk-header{
  position:sticky;top:0;z-index:60;
  background:var(--mk-surface);
  border-bottom:1px solid var(--mk-line);
  transition:box-shadow .2s ease;
}
.mk-header.is-scrolled{box-shadow:var(--mk-shadow-1);}
.mk-nav{display:flex;align-items:center;gap:32px;height:72px;}
.mk-logo{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--mk-ink);}
.mk-logo:hover{color:var(--mk-ink);}
.mk-logo-mark{
  width:40px;height:40px;flex:0 0 40px;display:grid;place-items:center;
  background:var(--mk-primary);color:#fff;border-radius:12px;font-size:18px;
}
.mk-logo-text{display:flex;flex-direction:column;font-size:18px;font-weight:700;letter-spacing:.2px;line-height:1.2;}
.mk-logo-text small{font-size:12px;font-weight:400;color:var(--mk-ink-3);letter-spacing:0;}
.mk-nav-links{display:flex;align-items:center;gap:28px;margin-left:auto;}
.mk-nav-links a{
  position:relative;font-size:15px;color:var(--mk-ink-2);padding:6px 0;font-weight:500;
}
.mk-nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--mk-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.mk-nav-links a:hover{color:var(--mk-primary);}
.mk-nav-links a:hover::after,.mk-nav-links a.is-active::after{transform:scaleX(1);}
.mk-nav-links a.is-active{color:var(--mk-primary);font-weight:600;}
.mk-nav-actions{display:flex;align-items:center;gap:12px;}
.mk-nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--mk-r-md);
  border:1px solid var(--mk-line);background:var(--mk-surface);color:var(--mk-ink);font-size:18px;
}

/* buttons */
.mk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--mk-r-md);
  font-size:15px;font-weight:600;border:1.5px solid transparent;white-space:nowrap;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.mk-btn i{font-size:15px;}
.mk-btn--primary{background:var(--mk-primary);color:#fff;box-shadow:var(--mk-shadow-1);}
.mk-btn--primary:hover{background:var(--mk-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--mk-shadow-2);}
.mk-btn--primary:active{transform:translateY(0);}
.mk-btn--accent{background:var(--mk-accent);color:#fff;box-shadow:0 8px 20px rgba(255,122,47,.25);}
.mk-btn--accent:hover{background:var(--mk-accent-700);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px rgba(255,122,47,.3);}
.mk-btn--ghost{background:transparent;color:var(--mk-primary);border-color:rgba(27,98,214,.45);}
.mk-btn--ghost:hover{background:var(--mk-primary-50);color:var(--mk-primary-700);border-color:var(--mk-primary);}
.mk-btn--lg{height:52px;padding:0 28px;font-size:16px;}
.mk-btn--block{width:100%;}

/* breadcrumb */
.mk-breadcrumb{background:var(--mk-surface);border-bottom:1px solid var(--mk-line);}
.mk-breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:14px;color:var(--mk-ink-3);}
.mk-breadcrumb li{display:flex;align-items:center;gap:8px;}
.mk-breadcrumb li+li::before{content:"/";color:var(--mk-line);}
.mk-breadcrumb a{color:var(--mk-ink-2);}
.mk-breadcrumb a:hover{color:var(--mk-primary);}
.mk-breadcrumb [aria-current="page"]{color:var(--mk-ink);font-weight:500;}

/* article layout */
.mk-main{padding:40px 0 var(--mk-space-section);}
.mk-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:48px;align-items:start;}
.mk-card{
  background:var(--mk-surface);border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);
  box-shadow:var(--mk-shadow-1);
}
.mk-article{padding:40px 44px 44px;}
.mk-article-head{border-bottom:1px solid var(--mk-line);padding-bottom:24px;}
.mk-tagrow{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.mk-badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--mk-r-pill);font-size:13px;font-weight:600;
  background:var(--mk-primary-50);color:var(--mk-primary-700);
}
.mk-badge--green{background:rgba(18,163,107,.1);color:var(--mk-success);}
.mk-badge--orange{background:rgba(255,122,47,.12);color:var(--mk-accent-700);}
.mk-article-head h1{
  font-size:clamp(26px,3.2vw,38px);line-height:1.3;font-weight:700;letter-spacing:-.2px;
}
.mk-meta{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:18px;font-size:14px;color:var(--mk-ink-3);}
.mk-meta span{display:inline-flex;align-items:center;gap:7px;}
.mk-meta i{color:var(--mk-ink-3);}
.mk-lead{margin-top:20px;font-size:16px;color:var(--mk-ink-2);line-height:1.8;}

.mk-article-body{max-width:760px;margin:32px auto 0;font-size:17px;line-height:1.9;color:#26313F;word-wrap:break-word;}
.mk-article-body p{margin:0 0 1.2em;}
.mk-article-body h2{
  position:relative;font-size:22px;font-weight:700;line-height:1.4;color:var(--mk-ink);
  margin:2.2em 0 .9em;padding-left:16px;
}
.mk-article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--mk-primary);
}
.mk-article-body h3{font-size:19px;font-weight:700;color:var(--mk-ink);margin:1.8em 0 .7em;}
.mk-article-body a{color:var(--mk-primary);border-bottom:1px solid rgba(27,98,214,.3);}
.mk-article-body a:hover{border-bottom-color:var(--mk-primary);}
.mk-article-body ul,.mk-article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
.mk-article-body ul{list-style:disc;}
.mk-article-body ol{list-style:decimal;}
.mk-article-body li{margin:.4em 0;}
.mk-article-body blockquote{
  margin:1.4em 0;padding:16px 22px;background:var(--mk-primary-50);
  border-left:4px solid var(--mk-primary);border-radius:0 var(--mk-r-sm) var(--mk-r-sm) 0;
  color:var(--mk-ink-2);font-size:16px;
}
.mk-article-body figure{margin:1.6em 0;}
.mk-article-body img{border-radius:var(--mk-r-lg);width:100%;box-shadow:var(--mk-shadow-1);}
.mk-article-body figcaption{margin-top:10px;font-size:13px;color:var(--mk-ink-3);text-align:center;}
.mk-article-body table{
  width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;
  border:1px solid var(--mk-line);border-radius:var(--mk-r-sm);overflow:hidden;display:block;overflow-x:auto;
}
.mk-article-body th,.mk-article-body td{padding:10px 14px;border-bottom:1px solid var(--mk-line);text-align:left;}
.mk-article-body th{background:var(--mk-bg);font-weight:600;color:var(--mk-ink);}
.mk-article-body code{
  background:#F1F4F9;border:1px solid var(--mk-line);border-radius:6px;
  padding:2px 6px;font-size:14px;font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
.mk-article-body pre{
  background:#F7F9FC;border:1px solid var(--mk-line);border-radius:var(--mk-r-md);
  padding:16px;overflow-x:auto;margin:1.4em 0;
}
.mk-article-body pre code{background:none;border:none;padding:0;}

/* sidebar */
.mk-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.mk-side-box{padding:20px 22px;}
.mk-side-box h2{font-size:15px;font-weight:700;letter-spacing:.4px;margin-bottom:14px;color:var(--mk-ink);}
.mk-toc ol{counter-reset:toc;display:flex;flex-direction:column;gap:4px;}
.mk-toc a{
  display:block;font-size:14px;line-height:1.6;color:var(--mk-ink-2);
  padding:7px 10px;border-radius:var(--mk-r-sm);border-left:2px solid transparent;
}
.mk-toc a:hover{background:var(--mk-bg);color:var(--mk-primary);}
.mk-toc a.is-current{background:var(--mk-primary-50);color:var(--mk-primary-700);border-left-color:var(--mk-primary);font-weight:600;}
.mk-toc-empty{font-size:13px;color:var(--mk-ink-3);}
.mk-side-list{display:flex;flex-direction:column;gap:12px;}
.mk-side-list a{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--mk-ink-2);}
.mk-side-list a i{margin-top:4px;color:var(--mk-primary);font-size:13px;}
.mk-side-list a:hover{color:var(--mk-primary);}

/* empty */
.mk-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--mk-line);border-radius:var(--mk-r-lg);background:var(--mk-bg);
  padding:36px 20px;text-align:center;
}
.mk-empty-icon{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--mk-primary-50);color:var(--mk-primary);font-size:22px;}
.mk-empty p{color:var(--mk-ink-2);font-size:15px;}

/* tag block */
.mk-tagblock{margin-top:36px;padding-top:24px;border-top:1px solid var(--mk-line);display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.mk-tagblock .mk-taglabel{font-size:14px;color:var(--mk-ink-3);margin-right:4px;}
.mk-chip{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--mk-r-pill);
  background:var(--mk-bg);border:1px solid var(--mk-line);font-size:13px;color:var(--mk-ink-2);font-weight:500;
}
.mk-chip:hover{background:var(--mk-primary-50);border-color:rgba(27,98,214,.35);color:var(--mk-primary-700);}

/* sections */
.mk-section{margin-top:var(--mk-space-section);}
.mk-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.mk-section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.3;}
.mk-section-head p{margin-top:8px;font-size:15px;color:var(--mk-ink-2);}

.mk-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.mk-post{
  display:flex;flex-direction:column;overflow:hidden;background:var(--mk-surface);
  border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);box-shadow:var(--mk-shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.mk-post:hover{transform:translateY(-2px);box-shadow:var(--mk-shadow-2);}
.mk-post-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--mk-primary-50);}
.mk-post-thumb img{width:100%;height:100%;object-fit:cover;}
.mk-post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.mk-post-body h3{font-size:18px;font-weight:700;line-height:1.45;color:var(--mk-ink);}
.mk-post-body p{font-size:14px;color:var(--mk-ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mk-post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px;font-size:13px;color:var(--mk-ink-3);}
.mk-post-foot .mk-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--mk-primary);font-size:13px;}
.mk-post:hover .mk-post-foot .mk-more i{transform:translateX(3px);}
.mk-post-foot .mk-more i{transition:transform .2s ease;}

/* faq accordion */
.mk-faq{margin:0;}
.mk-faq .accordion-item{border:none;background:transparent;}
.mk-faq .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:var(--mk-surface);color:var(--mk-ink);border:1px solid var(--mk-line);
  border-radius:var(--mk-r-lg);padding:18px 22px;font-size:17px;font-weight:600;line-height:1.5;
  box-shadow:var(--mk-shadow-1);transition:border-color .2s ease,box-shadow .2s ease;
}
.mk-faq .accordion-title::before{
  content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;
  order:2;color:var(--mk-primary);font-size:16px;transition:transform .25s ease;
}
.mk-faq .accordion-title[aria-expanded="true"]::before{transform:rotate(45deg);}
.mk-faq .accordion-title:hover{border-color:rgba(27,98,214,.4);}
.mk-faq .accordion-content{
  background:var(--mk-surface);border:1px solid var(--mk-line);border-top:none;
  border-radius:0 0 var(--mk-r-lg) var(--mk-r-lg);padding:0 22px 20px;color:var(--mk-ink-2);font-size:15px;line-height:1.8;
}
.mk-faq .accordion-item{padding-bottom:0;margin-bottom:12px;}
.mk-faq .accordion-item.is-active .accordion-title{border-radius:var(--mk-r-lg) var(--mk-r-lg) 0 0;border-bottom-color:transparent;}
.mk-faq .accordion-item:last-child{margin-bottom:0;}

/* cta band */
.mk-cta{
  margin-top:var(--mk-space-section);
  background:var(--mk-dark);border-top:3px solid var(--mk-accent);
  border-radius:var(--mk-r-lg);padding:48px 40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.mk-cta h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:#fff;}
.mk-cta p{margin-top:10px;color:rgba(255,255,255,.72);font-size:15px;max-width:620px;}

/* footer */
.mk-footer{background:var(--mk-dark);border-top:3px solid var(--mk-accent);color:rgba(255,255,255,.72);margin-top:var(--mk-space-section);}
.mk-footer .mk-container{padding-top:56px;padding-bottom:28px;}
.mk-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.mk-footer .mk-logo-text{color:#fff;}
.mk-footer .mk-logo-text small{color:rgba(255,255,255,.5);}
.mk-footer .mk-logo-mark{background:var(--mk-primary);}
.mk-footer p{font-size:14px;line-height:1.8;margin-top:16px;color:rgba(255,255,255,.66);}
.mk-footer h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;}
.mk-footer ul{display:flex;flex-direction:column;gap:10px;}
.mk-footer li{font-size:14px;color:rgba(255,255,255,.66);}
.mk-footer ul a{color:rgba(255,255,255,.72);font-size:14px;}
.mk-footer ul a:hover{color:var(--mk-accent);}
.mk-footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

@media screen and (max-width:1440px){
  :root{--mk-container:1200px;}
}
@media screen and (max-width:1200px){
  :root{--mk-container:100%;}
  .mk-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .mk-side{position:static;}
  .mk-toc ol{flex-direction:row;flex-wrap:wrap;}
  .mk-toc a{white-space:nowrap;}
}
@media screen and (max-width:1024px){
  :root{--mk-space-section:72px;}
  .mk-nav{gap:18px;}
  .mk-nav-links{gap:18px;}
  .mk-nav-links a{font-size:14px;}
  .mk-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .mk-footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:768px){
  :root{--mk-space-section:56px;}
  .mk-nav{height:64px;}
  .mk-logo-text{font-size:16px;}
  .mk-logo-text small{display:none;}
  .mk-nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .mk-nav-actions{margin-left:0;}
  .mk-nav-actions .mk-btn{display:none;}
  .mk-nav-links{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:var(--mk-surface);border-bottom:1px solid var(--mk-line);
    padding:10px 24px 18px;box-shadow:var(--mk-shadow-1);
  }
  .mk-nav-links.is-open{display:flex;}
  .mk-nav-links a{padding:13px 0;font-size:15px;border-bottom:1px solid var(--mk-line);}
  .mk-nav-links a::after{display:none;}
  .mk-article{padding:26px 20px 30px;}
  .mk-article-body{font-size:16px;}
  .mk-section-head{flex-direction:column;align-items:flex-start;}
  .mk-grid-3{grid-template-columns:minmax(0,1fr);}
  .mk-cta{padding:32px 24px;flex-direction:column;align-items:flex-start;}
  .mk-cta .mk-btn{width:100%;}
  .mk-footer-grid{grid-template-columns:1fr;}
  .mk-footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:520px){
  .mk-container{padding:0 18px;}
  .mk-meta{gap:12px;font-size:13px;}
  .mk-btn{height:46px;padding:0 18px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}

/* roulang page: category1 */
:root{
  --mk-primary:#1B62D6;
  --mk-primary-700:#144FAF;
  --mk-primary-50:#EAF1FE;
  --mk-accent:#FF7A2F;
  --mk-accent-700:#E3651D;
  --mk-success:#12A36B;
  --mk-star:#F5A524;
  --mk-ink:#16202E;
  --mk-ink-2:#55607A;
  --mk-ink-3:#8A94A6;
  --mk-bg:#F5F7FA;
  --mk-surface:#FFFFFF;
  --mk-line:#E5E9F0;
  --mk-dark:#14202E;
  --mk-r-sm:8px;
  --mk-r-md:10px;
  --mk-r-lg:16px;
  --mk-r-pill:999px;
  --mk-shadow-1:0 1px 2px rgba(16,24,40,.06), 0 8px 24px rgba(16,24,40,.06);
  --mk-shadow-2:0 12px 32px rgba(16,24,40,.12);
  --mk-sec:96px;
  --mk-container:1200px;
  --mk-font:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--mk-font);
  font-size:16px;
  line-height:1.75;
  color:var(--mk-ink);
  background:var(--mk-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--mk-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--mk-primary-700);}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--mk-ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--mk-accent);outline-offset:2px;border-radius:4px;}
.mk-container{width:100%;max-width:var(--mk-container);margin:0 auto;padding:0 24px;}
.mk-num{font-variant-numeric:tabular-nums;}

/* ---------- 导航 ---------- */
.mk-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  border-bottom:1px solid var(--mk-line);
  transition:box-shadow .25s ease;
}
.mk-header.is-scrolled{box-shadow:var(--mk-shadow-1);}
.mk-nav{position:relative;display:flex;align-items:center;gap:24px;height:72px;}
.mk-logo{display:flex;align-items:center;gap:10px;color:var(--mk-ink);flex-shrink:0;}
.mk-logo:hover{color:var(--mk-ink);}
.mk-logo-mark{
  width:38px;height:38px;border-radius:var(--mk-r-md);
  background:var(--mk-primary);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;flex-shrink:0;
}
.mk-logo-text{display:flex;flex-direction:column;font-size:16px;font-weight:700;line-height:1.18;}
.mk-logo-text small{font-size:11px;font-weight:500;color:var(--mk-ink-3);letter-spacing:.02em;}
.mk-nav-links{display:flex;align-items:center;gap:28px;margin-left:8px;}
.mk-nav-links a{
  position:relative;
  font-size:15px;
  color:var(--mk-ink-2);
  padding:6px 0;
  white-space:nowrap;
}
.mk-nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--mk-primary);border-radius:2px;transform:scaleX(0);
  transition:transform .22s ease;
}
.mk-nav-links a:hover{color:var(--mk-primary);}
.mk-nav-links a:hover::after{transform:scaleX(1);}
.mk-nav-links a.is-active{color:var(--mk-primary);font-weight:600;}
.mk-nav-links a.is-active::after{transform:scaleX(1);}
.mk-nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.mk-nav-actions .mk-btn{height:42px;padding:0 18px;font-size:14px;}
.mk-nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1.5px solid var(--mk-line);border-radius:var(--mk-r-md);
  background:#fff;color:var(--mk-ink);font-size:16px;
}
.mk-nav-toggle:hover{border-color:var(--mk-primary);color:var(--mk-primary);}

/* ---------- 按钮 ---------- */
.mk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--mk-r-md);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.mk-btn--primary{background:var(--mk-primary);color:#fff;}
.mk-btn--primary:hover{background:var(--mk-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--mk-shadow-2);}
.mk-btn--primary:active{transform:translateY(0);box-shadow:none;}
.mk-btn--accent{background:var(--mk-accent);color:#fff;}
.mk-btn--accent:hover{background:var(--mk-accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--mk-shadow-2);}
.mk-btn--accent:active{transform:translateY(0);box-shadow:none;}
.mk-btn--ghost{border-color:var(--mk-line);background:#fff;color:var(--mk-ink);}
.mk-btn--ghost:hover{border-color:var(--mk-primary);background:var(--mk-primary-50);color:var(--mk-primary);}
.mk-btn--outline{border-color:var(--mk-primary);background:transparent;color:var(--mk-primary);}
.mk-btn--outline:hover{background:var(--mk-primary-50);color:var(--mk-primary-700);}
.mk-btn--lg{height:52px;padding:0 30px;font-size:16px;}
.mk-btn--block{width:100%;}

/* ---------- 通用元素 ---------- */
.mk-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--mk-r-pill);
  background:var(--mk-primary-50);color:var(--mk-primary);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.mk-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--mk-ink-3);margin-bottom:22px;}
.mk-breadcrumb a{color:var(--mk-ink-2);}
.mk-breadcrumb a:hover{color:var(--mk-primary);}
.mk-breadcrumb .mk-sep{color:var(--mk-ink-3);}
.mk-breadcrumb [aria-current]{color:var(--mk-ink);font-weight:600;}
.mk-chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.mk-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:var(--mk-r-pill);
  background:#fff;border:1px solid var(--mk-line);
  font-size:13px;color:var(--mk-ink-2);
}
.mk-chip i{color:var(--mk-primary);}
.mk-section{padding:var(--mk-sec) 0;}
.mk-section--white{background:#fff;}
.mk-section-head{max-width:760px;margin-bottom:44px;}
.mk-section-head h2{font-size:clamp(24px,2.6vw,34px);}
.mk-section-head p{margin-top:14px;color:var(--mk-ink-2);font-size:16px;}

/* ---------- Hero ---------- */
.mk-hero--guide{
  position:relative;
  padding:48px 0 64px;
  background-color:#fff;
  background-image:linear-gradient(90deg,#FFFFFF 0%,rgba(255,255,255,.95) 40%,rgba(255,255,255,.55) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--mk-line);
}
.mk-hero-inner{max-width:760px;}
.mk-hero--guide h1{
  margin-top:20px;
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.22;
}
.mk-hero-lead{
  margin-top:18px;
  font-size:17px;
  line-height:1.8;
  color:var(--mk-ink-2);
  max-width:700px;
}
.mk-hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 指南主体 ---------- */
.mk-guide{display:grid;grid-template-columns:266px minmax(0,1fr);gap:56px;align-items:start;}
.mk-toc{
  position:sticky;
  top:96px;
  background:#fff;
  border:1px solid var(--mk-line);
  border-radius:var(--mk-r-lg);
  padding:20px;
  box-shadow:var(--mk-shadow-1);
}
.mk-toc h2{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--mk-ink-3);margin-bottom:12px;}
.mk-toc a{
  display:block;
  padding:10px 12px;
  border-left:2px solid transparent;
  border-radius:var(--mk-r-sm);
  font-size:15px;
  color:var(--mk-ink-2);
}
.mk-toc a:hover{background:var(--mk-primary-50);color:var(--mk-primary);}
.mk-toc a.is-active{background:var(--mk-primary-50);color:var(--mk-primary);font-weight:600;border-left-color:var(--mk-accent);}
.mk-toc-note{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--mk-line);
  font-size:13px;color:var(--mk-ink-3);line-height:1.7;
}

.mk-steplist{border-top:1px solid var(--mk-line);}
.mk-steplist > li{
  display:grid;
  grid-template-columns:72px minmax(0,1fr);
  gap:24px;
  padding:30px 0;
  border-bottom:1px solid var(--mk-line);
  scroll-margin-top:110px;
}
.mk-step-no{
  font-size:15px;
  font-weight:700;
  color:var(--mk-primary);
  letter-spacing:.1em;
  font-variant-numeric:tabular-nums;
  padding-top:2px;
}
.mk-step-body h3{font-size:21px;}
.mk-step-body p{margin-top:10px;color:var(--mk-ink-2);max-width:640px;}
.mk-step-meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;
}
.mk-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--mk-r-pill);
  background:var(--mk-bg);border:1px solid var(--mk-line);
  font-size:13px;color:var(--mk-ink-2);
}
.mk-tag--ok{background:#E8F7F0;border-color:#C7EBDA;color:#0E7C52;}
.mk-tag--warn{background:#FFF3EA;border-color:#FFDCC6;color:#B34F14;}

/* ---------- 图文区块 ---------- */
.mk-split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.mk-figure{
  margin:0;
  border-radius:var(--mk-r-lg);
  overflow:hidden;
  border:1px solid var(--mk-line);
  box-shadow:var(--mk-shadow-1);
  background:#fff;
}
.mk-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.mk-figure figcaption{
  padding:14px 18px;
  font-size:13px;
  color:var(--mk-ink-3);
  border-top:1px solid var(--mk-line);
  background:#fff;
}
.mk-split h2{font-size:clamp(24px,2.6vw,32px);}
.mk-split p{margin-top:16px;color:var(--mk-ink-2);}
.mk-list-check{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.mk-list-check li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--mk-ink-2);}
.mk-list-check i{color:var(--mk-success);margin-top:4px;font-size:14px;}

.mk-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;margin-top:44px;
}
.mk-stat{
  background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-r-lg);
  padding:22px 20px;box-shadow:var(--mk-shadow-1);
}
.mk-stat-value{
  display:block;font-size:26px;font-weight:700;color:var(--mk-ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.mk-stat-value em{font-style:normal;font-size:14px;font-weight:600;color:var(--mk-ink-3);margin-left:4px;}
.mk-stat-label{display:block;margin-top:6px;font-size:14px;color:var(--mk-ink-2);}

.mk-notice{
  display:flex;gap:12px;align-items:flex-start;
  margin-top:40px;
  padding:16px 20px;
  background:var(--mk-primary-50);
  border:1px solid #D3E1FB;
  border-radius:var(--mk-r-md);
  font-size:15px;
  color:var(--mk-ink-2);
}
.mk-notice i{color:var(--mk-primary);margin-top:4px;}

/* ---------- FAQ ---------- */
.mk-faq.accordion{background:transparent;border:0;margin:0;}
.mk-faq .accordion-item{
  background:#fff;
  border:1px solid var(--mk-line);
  border-radius:var(--mk-r-lg);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--mk-shadow-1);
  transition:box-shadow .22s ease,transform .22s ease;
}
.mk-faq .accordion-item:hover{box-shadow:var(--mk-shadow-2);transform:translateY(-2px);}
.mk-faq .accordion-title{
  position:relative;
  border:0;
  padding:18px 56px 18px 20px;
  font-size:17px;
  font-weight:600;
  color:var(--mk-ink);
  background:#fff;
  line-height:1.5;
}
.mk-faq .accordion-title:hover{background:#fff;color:var(--mk-primary);}
.mk-faq .accordion-title::before{display:none;}
.mk-faq .accordion-title::after{
  content:"\2b";
  position:absolute;right:22px;top:50%;
  transform:translateY(-50%);
  font-size:20px;font-weight:600;line-height:1;
  color:var(--mk-primary);
  transition:transform .25s ease;
}
.mk-faq .accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(45deg);}
.mk-faq .accordion-content{
  border:0;
  padding:0 20px 20px;
  color:var(--mk-ink-2);
  line-height:1.75;
  font-size:15px;
}
.mk-faq .accordion-content p{max-width:820px;}

/* ---------- 底部 CTA ---------- */
.mk-cta{
  background:var(--mk-dark);
  border-top:3px solid var(--mk-accent);
  padding:56px 0;
  color:#fff;
}
.mk-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.mk-cta h2{color:#fff;font-size:clamp(22px,2.4vw,30px);}
.mk-cta p{margin-top:10px;color:#A9B4C4;font-size:15px;}

/* ---------- 页脚 ---------- */
.mk-footer{
  background:var(--mk-dark);
  border-top:3px solid var(--mk-accent);
  color:#A9B4C4;
  font-size:14px;
  padding:64px 0 0;
}
.mk-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.mk-footer .mk-logo{color:#fff;margin-bottom:18px;}
.mk-footer .mk-logo:hover{color:#fff;}
.mk-footer .mk-logo-text small{color:#8A94A6;}
.mk-footer p{line-height:1.85;color:#A9B4C4;}
.mk-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em;}
.mk-footer ul{display:flex;flex-direction:column;gap:10px;}
.mk-footer ul li{color:#A9B4C4;}
.mk-footer ul a{color:#A9B4C4;}
.mk-footer ul a:hover{color:var(--mk-accent);}
.mk-footer-bottom{
  margin-top:52px;
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8A94A6;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1200px){
  .mk-guide{grid-template-columns:230px minmax(0,1fr);gap:40px;}
}
@media screen and (max-width:1024px){
  :root{--mk-sec:72px;}
  .mk-nav-links{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;
    margin-left:0;
    padding:10px 24px 22px;
    background:#fff;
    border-bottom:1px solid var(--mk-line);
    box-shadow:var(--mk-shadow-2);
    display:none;
  }
  .mk-nav-links.is-open{display:flex;}
  .mk-nav-links a{padding:14px 2px;font-size:16px;border-bottom:1px solid var(--mk-line);}
  .mk-nav-links a::after{display:none;}
  .mk-nav-links a.is-active{color:var(--mk-primary);}
  .mk-nav-toggle{display:inline-flex;}
  .mk-guide{grid-template-columns:minmax(0,1fr);gap:36px;}
  .mk-toc{position:static;}
  .mk-toc a{display:inline-block;margin:0 6px 8px 0;border-left:0;border:1px solid var(--mk-line);border-radius:var(--mk-r-pill);padding:8px 14px;font-size:14px;}
  .mk-toc a.is-active{border-color:var(--mk-primary);}
  .mk-toc-note{display:none;}
  .mk-split{grid-template-columns:minmax(0,1fr);gap:36px;}
  .mk-footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media screen and (max-width:768px){
  :root{--mk-sec:56px;}
  .mk-container{padding:0 18px;}
  .mk-nav{height:64px;gap:12px;}
  .mk-logo-text{font-size:14px;line-height:1.15;}
  .mk-logo-text small{display:none;}
  .mk-logo-mark{width:34px;height:34px;font-size:15px;}
  .mk-nav-actions .mk-btn--ghost{display:none;}
  .mk-nav-actions .mk-btn{height:40px;padding:0 14px;font-size:13px;}
  .mk-hero--guide{padding:32px 0 48px;}
  .mk-hero-lead{font-size:16px;}
  .mk-steplist > li{grid-template-columns:minmax(0,1fr);gap:10px;padding:24px 0;}
  .mk-step-no{font-size:13px;}
  .mk-step-body h3{font-size:19px;}
  .mk-stats{grid-template-columns:minmax(0,1fr);gap:14px;margin-top:32px;}
  .mk-cta-inner{flex-direction:column;align-items:flex-start;}
  .mk-cta .mk-btn{width:100%;}
  .mk-footer-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .mk-footer-bottom{flex-direction:column;}
  .mk-hero-actions .mk-btn{width:100%;}
}
@media screen and (max-width:520px){
  .mk-chip{font-size:12px;padding:6px 12px;}
  .mk-faq .accordion-title{font-size:16px;padding:16px 48px 16px 16px;}
  .mk-faq .accordion-title::after{right:16px;}
  .mk-faq .accordion-content{padding:0 16px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
/* =========================================================
   1. 设计变量
   ========================================================= */
:root{
  --mk-primary:#1B62D6;
  --mk-primary-700:#144FAF;
  --mk-primary-50:#EAF1FE;
  --mk-accent:#FF7A2F;
  --mk-accent-700:#E8631A;
  --mk-success:#12A36B;
  --mk-star:#F5A524;
  --mk-ink:#16202E;
  --mk-ink-2:#55607A;
  --mk-ink-3:#8A94A6;
  --mk-bg:#F5F7FA;
  --mk-surface:#FFFFFF;
  --mk-line:#E5E9F0;
  --mk-dark:#14202E;

  --mk-radius-sm:8px;
  --mk-radius-md:10px;
  --mk-radius-lg:16px;
  --mk-radius-pill:999px;

  --mk-shadow-1:0 1px 2px rgba(16,24,40,.06),0 8px 24px rgba(16,24,40,.06);
  --mk-shadow-2:0 1px 2px rgba(16,24,40,.08),0 12px 32px rgba(16,24,40,.12);

  --mk-font:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mk-container-width:1200px;
  --mk-section-gap:96px;
  --mk-gutter:24px;
}

@media (min-width:1440px){
  :root{ --mk-container-width:1280px; }
}
@media (max-width:1024px){
  :root{ --mk-section-gap:72px; }
}
@media (max-width:768px){
  :root{ --mk-section-gap:56px; --mk-gutter:16px; }
}

/* =========================================================
   2. 基础 reset
   ========================================================= */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--mk-font);
  font-size:16px;
  line-height:1.75;
  color:var(--mk-ink);
  background:var(--mk-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; border:0; }
a{ color:var(--mk-primary); text-decoration:none; transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease; }
ul,ol{ margin:0; padding:0; list-style:none; }
p{ margin:0; }
button,input,select,textarea{ font:inherit; color:inherit; }
button{ cursor:pointer; }
h1,h2,h3,h4,h5,h6{ margin:0; font-weight:700; line-height:1.25; letter-spacing:-.01em; color:var(--mk-ink); }
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--mk-accent);
  outline-offset:2px;
  border-radius:6px;
}
::selection{ background:var(--mk-primary-50); color:var(--mk-primary-700); }

/* =========================================================
   3. 容器与通用排版
   ========================================================= */
.mk-container{
  width:100%;
  max-width:var(--mk-container-width);
  margin:0 auto;
  padding:0 var(--mk-gutter);
}
.mk-section{ padding:var(--mk-section-gap) 0; }
.mk-section--tight{ padding:calc(var(--mk-section-gap) * .7) 0; }
.mk-section--alt{ background:var(--mk-surface); border-top:1px solid var(--mk-line); border-bottom:1px solid var(--mk-line); }

.mk-sec-head{ max-width:760px; margin-bottom:44px; }
.mk-sec-head h2{ font-size:clamp(24px,2.6vw,34px); margin-bottom:14px; }
.mk-sec-head p{ color:var(--mk-ink-2); font-size:16px; line-height:1.8; }
.mk-sec-tag{
  display:inline-flex; align-items:center; gap:8px;
  height:28px; padding:0 12px; margin-bottom:16px;
  border-radius:var(--mk-radius-pill);
  background:var(--mk-primary-50); color:var(--mk-primary-700);
  font-size:13px; font-weight:600; letter-spacing:.02em;
}
.mk-sec-head--row{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap:24px; max-width:none;
}

/* =========================================================
   4. 导航
   ========================================================= */
.mk-header{
  position:sticky; top:0; z-index:90;
  background:var(--mk-surface);
  border-bottom:1px solid var(--mk-line);
  transition:box-shadow .25s ease;
}
.mk-header.is-scrolled{ box-shadow:var(--mk-shadow-1); }
.mk-nav{ display:flex; align-items:center; gap:24px; height:72px; }

.mk-logo{ display:flex; align-items:center; gap:10px; text-decoration:none; color:var(--mk-ink); flex-shrink:0; }
.mk-logo-mark{
  width:38px; height:38px; flex-shrink:0;
  display:grid; place-items:center;
  border-radius:12px;
  background:var(--mk-primary); color:#fff; font-size:17px;
  box-shadow:0 6px 16px rgba(27,98,214,.28);
}
.mk-logo-text{
  display:flex; flex-direction:column;
  font-weight:700; font-size:17px; line-height:1.15; letter-spacing:-.01em;
}
.mk-logo-text small{ font-weight:400; font-size:11px; color:var(--mk-ink-3); letter-spacing:.02em; margin-top:2px; }

.mk-nav-links{ display:flex; align-items:center; gap:28px; margin-left:auto; }
.mk-nav-links a{
  position:relative;
  font-size:15px; color:var(--mk-ink-2); font-weight:500;
  padding:6px 0; white-space:nowrap;
}
.mk-nav-links a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:2px;
  background:var(--mk-primary); border-radius:2px;
  transform:scaleX(0); transform-origin:left center;
  transition:transform .22s ease;
}
.mk-nav-links a:hover{ color:var(--mk-primary); }
.mk-nav-links a:hover::after{ transform:scaleX(1); }
.mk-nav-links a.is-active{ color:var(--mk-primary); font-weight:700; }
.mk-nav-links a.is-active::after{ transform:scaleX(1); }

.mk-nav-actions{ display:flex; align-items:center; gap:12px; flex-shrink:0; }
.mk-nav-toggle{
  display:none; width:44px; height:44px;
  align-items:center; justify-content:center;
  border:1px solid var(--mk-line); border-radius:var(--mk-radius-md);
  background:var(--mk-surface); color:var(--mk-ink);
  transition:border-color .2s ease,color .2s ease;
}
.mk-nav-toggle:hover{ border-color:var(--mk-primary); color:var(--mk-primary); }

/* =========================================================
   5. 按钮
   ========================================================= */
.mk-btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 22px;
  border:1.5px solid transparent; border-radius:var(--mk-radius-md);
  font-size:15px; font-weight:600; line-height:1; white-space:nowrap;
  cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.mk-btn i{ font-size:14px; }
.mk-btn--lg{ height:52px; padding:0 28px; font-size:16px; }
.mk-btn--accent{ background:var(--mk-accent); color:#fff; box-shadow:0 8px 20px rgba(255,122,47,.28); }
.mk-btn--accent:hover{ background:var(--mk-accent-700); color:#fff; transform:translateY(-1px); box-shadow:0 12px 26px rgba(255,122,47,.34); }
.mk-btn--accent:active{ transform:translateY(0); }
.mk-btn--primary{ background:var(--mk-primary); color:#fff; box-shadow:0 8px 20px rgba(27,98,214,.24); }
.mk-btn--primary:hover{ background:var(--mk-primary-700); color:#fff; transform:translateY(-1px); }
.mk-btn--primary:active{ transform:translateY(0); }
.mk-btn--ghost{ background:transparent; border-color:var(--mk-line); color:var(--mk-ink); }
.mk-btn--ghost:hover{ border-color:var(--mk-primary); color:var(--mk-primary); background:var(--mk-primary-50); }
.mk-btn--outline-light{ background:rgba(255,255,255,.08); border-color:rgba(255,255,255,.55); color:#fff; }
.mk-btn--outline-light:hover{ background:#fff; border-color:#fff; color:var(--mk-primary-700); transform:translateY(-1px); }
.mk-btn--link{
  height:auto; padding:0; background:none; border:none;
  color:var(--mk-primary); font-weight:600;
}
.mk-btn--link i{ transition:transform .2s ease; }
.mk-btn--link:hover{ color:var(--mk-primary-700); }
.mk-btn--link:hover i{ transform:translateX(4px); }

/* =========================================================
   6. 分类页顶部大图
   ========================================================= */
.mk-hero2{ position:relative; }
.mk-hero2-media{
  position:relative;
  min-height:520px;
  display:flex; align-items:center;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center 28%;
  background-repeat:no-repeat;
  background-color:#14202E;
}
.mk-hero2-media::before{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg,rgba(20,32,46,.42) 0%,rgba(20,32,46,.86) 100%);
}
.mk-hero2-inner{ position:relative; z-index:2; width:100%; padding:104px 0 132px; }

.mk-crumb{
  display:flex; align-items:center; flex-wrap:wrap; gap:8px;
  font-size:14px; line-height:1.6;
  margin-bottom:24px;
}
.mk-crumb a{ color:rgba(255,255,255,.78); }
.mk-crumb a:hover{ color:#fff; }
.mk-crumb span{ color:rgba(255,255,255,.38); }
.mk-crumb em{ font-style:normal; color:rgba(255,255,255,.62); }

.mk-hero2-kicker{
  display:inline-flex; align-items:center; gap:8px;
  height:30px; padding:0 14px; margin-bottom:20px;
  border-radius:var(--mk-radius-pill);
  background:rgba(255,122,47,.16);
  border:1px solid rgba(255,122,47,.5);
  color:#FFB183; font-size:13px; font-weight:600; letter-spacing:.04em;
}
.mk-hero2 h1{
  color:#fff;
  font-size:clamp(28px,3.6vw,46px);
  line-height:1.2;
  max-width:820px;
  margin-bottom:18px;
  text-shadow:0 2px 18px rgba(0,0,0,.28);
}
.mk-hero2-sub{
  color:rgba(255,255,255,.82);
  font-size:17px; line-height:1.8;
  max-width:680px;
  margin-bottom:32px;
}
.mk-hero2-actions{ display:flex; flex-wrap:wrap; gap:14px; }

.mk-hero2-bar{
  position:absolute; left:0; right:0; bottom:0; z-index:3;
  background:var(--mk-primary);
  border-top:1px solid rgba(255,255,255,.14);
}
.mk-hero2-bar ul{
  display:flex; flex-wrap:wrap; align-items:center; gap:12px 32px;
  padding:13px 0;
  color:rgba(255,255,255,.94); font-size:14px;
}
.mk-hero2-bar li{ display:flex; align-items:center; gap:8px; }
.mk-hero2-bar li i{ color:#FFC49B; font-size:13px; }

/* =========================================================
   7. 统计数字
   ========================================================= */
.mk-stat-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  background:var(--mk-surface);
  border:1px solid var(--mk-line);
  border-radius:var(--mk-radius-lg);
  box-shadow:var(--mk-shadow-1);
  padding:30px 24px;
}
.mk-stat{ text-align:center; padding:0 12px; border-right:1px solid var(--mk-line); }
.mk-stat:last-child{ border-right:none; }
.mk-stat-num{
  display:block;
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700; color:var(--mk-primary);
  line-height:1.2; letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
}
.mk-stat-label{
  display:block; margin-top:8px;
  font-size:14px; color:var(--mk-ink-2); line-height:1.6;
}

/* =========================================================
   8. 不等高宫格
   ========================================================= */
.mk-mosaic{
  display:grid;
  grid-template-columns:1.25fr 1fr;
  grid-template-areas:
    "lg a"
    "lg b"
    "wide wide";
  gap:24px;
}
.mk-mosaic-card{
  position:relative;
  display:flex; flex-direction:column;
  background:var(--mk-surface);
  border:1px solid var(--mk-line);
  border-radius:var(--mk-radius-lg);
  box-shadow:var(--mk-shadow-1);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.mk-mosaic-card:hover{ transform:translateY(-2px); box-shadow:var(--mk-shadow-2); border-color:#D8E1EF; }
.mk-mosaic-card--lg{ grid-area:lg; }
.mk-mosaic-card--a{ grid-area:a; }
.mk-mosaic-card--b{ grid-area:b; }
.mk-mosaic-card--wide{ grid-area:wide; flex-direction:row; }

.mk-card-media{
  position:relative;
  overflow:hidden;
  background:#0F1928;
}
.mk-card-media img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.mk-mosaic-card:hover .mk-card-media img{ transform:scale(1.04); }
.mk-mosaic-card--lg .mk-card-media{ height:280px; }
.mk-mosaic-card--a .mk-card-media,
.mk-mosaic-card--b .mk-card-media{ height:146px; }
.mk-mosaic-card--wide .mk-card-media{ flex:0 0 300px; height:auto; min-height:196px; }

.mk-card-body{ padding:26px 28px 28px; display:flex; flex-direction:column; flex:1; }
.mk-mosaic-card--a .mk-card-body,
.mk-mosaic-card--b .mk-card-body{ padding:20px 22px 22px; }
.mk-mosaic-card--wide .mk-card-body{ padding:28px 30px; }

.mk-badge{
  display:inline-flex; align-items:center; gap:6px;
  height:24px; padding:0 10px; margin-bottom:12px;
  border-radius:var(--mk-radius-sm);
  font-size:12px; font-weight:600; letter-spacing:.02em;
  background:var(--mk-primary-50); color:var(--mk-primary-700);
  width:max-content;
}
.mk-badge--green{ background:rgba(18,163,107,.1); color:#0E8256; }
.mk-badge--orange{ background:rgba(255,122,47,.12); color:var(--mk-accent-700); }

.mk-card-body h3{ font-size:20px; margin-bottom:10px; }
.mk-mosaic-card--lg .mk-card-body h3{ font-size:23px; }
.mk-mosaic-card--wide .mk-card-body h3{ font-size:22px; }
.mk-card-body p{ color:var(--mk-ink-2); font-size:15px; line-height:1.8; }

.mk-mini-list{ margin-top:18px; display:flex; flex-direction:column; gap:10px; }
.mk-mini-list li{
  display:flex; align-items:flex-start; gap:10px;
  font-size:14px; color:var(--mk-ink-2); line-height:1.7;
}
.mk-mini-list li i{ color:var(--mk-success); font-size:13px; margin-top:6px; flex-shrink:0; }

/* =========================================================
   9. 横向滑动卡片带
   ========================================================= */
.mk-scroller{
  display:flex; gap:20px;
  overflow-x:auto; overflow-y:hidden;
  padding:6px 6px 22px;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.mk-scroller::-webkit-scrollbar{ display:none; }
.mk-slide{
  flex:0 0 302px;
  scroll-snap-align:start;
  display:flex; flex-direction:column;
  background:var(--mk-surface);
  border:1px solid var(--mk-line);
  border-radius:var(--mk-radius-lg);
  box-shadow:var(--mk-shadow-1);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.mk-slide:hover{ transform:translateY(-3px); box-shadow:var(--mk-shadow-2); }
.mk-slide-media{ height:168px; overflow:hidden; background:#0F1928; }
.mk-slide-media img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.mk-slide:hover .mk-slide-media img{ transform:scale(1.05); }
.mk-slide-body{ padding:20px 22px 24px; display:flex; flex-direction:column; flex:1; }
.mk-slide-body h3{ font-size:18px; margin-bottom:8px; }
.mk-slide-body p{ font-size:14px; color:var(--mk-ink-2); line-height:1.75; flex:1; }
.mk-slide-meta{
  display:flex; align-items:center; justify-content:space-between;
  margin-top:16px; padding-top:14px;
  border-top:1px solid var(--mk-line);
  font-size:13px; color:var(--mk-ink-3);
}
.mk-slide-meta strong{ color:var(--mk-primary); font-weight:600; }

/* =========================================================
   10. 对比条
   ========================================================= */
.mk-compare-bar{
  display:grid; grid-template-columns:1fr 1fr;
  border:1px solid var(--mk-line);
  border-radius:var(--mk-radius-lg);
  background:var(--mk-surface);
  box-shadow:var(--mk-shadow-1);
  overflow:hidden;
}
.mk-compare-side{ padding:38px 34px; }
.mk-compare-side--pro{
  background:var(--mk-primary-50);
  border-left:1px solid var(--mk-line);
}
.mk-compare-side h3{
  font-size:20px; margin-bottom:6px;
  display:flex; align-items:center; gap:10px;
}
.mk-compare-side h3 i{ color:var(--mk-ink-3); }
.mk-compare-side--pro h3 i{ color:var(--mk-primary); }
.mk-compare-note{ font-size:14px; color:var(--mk-ink-2); margin-bottom:22px; }
.mk-compare-list{ display:flex; flex-direction:column; }
.mk-compare-list li{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:13px 0;
  border-bottom:1px dashed var(--mk-line);
  font-size:15px; color:var(--mk-ink-2);
}
.mk-compare-list li:last-child{ border-bottom:none; }
.mk-compare-list b{
  font-weight:700; color:var(--mk-ink); font-size:15px;
  font-variant-numeric:tabular-nums;
}
.mk-compare-side--pro .mk-compare-list b{ color:var(--mk-primary-700); }

/* =========================================================
   11. FAQ 手风琴
   ========================================================= */
.mk-faq{ border:none; background:transparent; }
.mk-faq .mk-faq-item{
  border:1px solid var(--mk-line);
  border-radius:var(--mk-radius-lg);
  background:var(--mk-surface);
  box-shadow:var(--mk-shadow-1);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.mk-faq .mk-faq-item:hover{ border-color:#D8E1EF; }
.mk-faq .mk-faq-item.is-active{ border-color:var(--mk-primary); box-shadow:0 8px 26px rgba(27,98,214,.1); }
.mk-faq .mk-faq-title{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:20px 24px;
  font-size:17px; font-weight:600; color:var(--mk-ink);
  background:transparent;
  border:none;
}
.mk-faq .mk-faq-title::after{
  content:"\002B";
  font-size:20px; font-weight:400; color:var(--mk-ink-3);
  transition:transform .25s ease,color .25s ease;
  line-height:1;
}
.mk-faq .is-active > .mk-faq-title{ color:var(--mk-primary); }
.mk-faq .is-active > .mk-faq-title::after{ transform:rotate(45deg); color:var(--mk-primary); }
.mk-faq .mk-faq-panel{ background:transparent; border:none; }
.mk-faq .mk-faq-panel-inner{
  padding:0 24px 22px;
  font-size:15px; color:var(--mk-ink-2); line-height:1.85;
}

/* =========================================================
   12. 底部 CTA
   ========================================================= */
.mk-cta{
  background:var(--mk-dark);
  border-top:3px solid var(--mk-accent);
  padding:72px 0;
}
.mk-cta-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:32px; flex-wrap:wrap;
}
.mk-cta h2{
  color:#fff; font-size:clamp(22px,2.4vw,30px); margin-bottom:10px;
}
.mk-cta p{ color:rgba(255,255,255,.7); font-size:15px; max-width:620px; }

/* =========================================================
   13. 页脚
   ========================================================= */
.mk-footer{
  background:var(--mk-dark);
  border-top:3px solid var(--mk-accent);
  color:rgba(255,255,255,.72);
  font-size:14px;
  padding:64px 0 28px;
}
.mk-footer .mk-logo-text{ color:#fff; }
.mk-footer .mk-logo-text small{ color:rgba(255,255,255,.5); }
.mk-footer .mk-logo-mark{ background:var(--mk-primary); }
.mk-footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
}
.mk-footer-grid p{ margin-top:16px; line-height:1.8; color:rgba(255,255,255,.62); }
.mk-footer-grid h4{
  color:#fff; font-size:15px; margin-bottom:16px; font-weight:600;
}
.mk-footer-grid ul li{ margin-bottom:10px; line-height:1.7; }
.mk-footer-grid a{ color:rgba(255,255,255,.72); }
.mk-footer-grid a:hover{ color:var(--mk-accent); }
.mk-footer-bottom{
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:14px;
  margin-top:48px; padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px; color:rgba(255,255,255,.5);
}

/* =========================================================
   14. 响应式
   ========================================================= */
@media (max-width:1024px){
  .mk-nav-links{
    position:fixed; top:72px; left:0; right:0; z-index:88;
    flex-direction:column; align-items:stretch; gap:0;
    margin-left:0; padding:8px var(--mk-gutter) 20px;
    background:var(--mk-surface);
    border-bottom:1px solid var(--mk-line);
    box-shadow:var(--mk-shadow-2);
    transform:translateY(-14px); opacity:0; pointer-events:none;
    transition:transform .24s ease,opacity .24s ease;
  }
  .mk-nav-links.is-open{ transform:translateY(0); opacity:1; pointer-events:auto; }
  .mk-nav-links a{ padding:15px 0; font-size:16px; border-bottom:1px solid var(--mk-line); }
  .mk-nav-links a::after{ display:none; }
  .mk-nav-links a:last-child{ border-bottom:none; }
  .mk-nav-toggle{ display:inline-flex; }
  .mk-nav-actions .mk-btn--ghost{ display:none; }

  .mk-stat-row{ grid-template-columns:repeat(2,1fr); row-gap:26px; }
  .mk-stat:nth-child(2n){ border-right:none; }

  .mk-mosaic{
    grid-template-columns:1fr;
    grid-template-areas:"lg" "a" "b" "wide";
  }
  .mk-mosaic-card--wide{ flex-direction:column; }
  .mk-mosaic-card--wide .mk-card-media{ flex:none; height:200px; min-height:0; }

  .mk-footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
}

@media (max-width:768px){
  .mk-nav{ height:64px; gap:12px; }
  .mk-nav-links{ top:64px; }
  .mk-logo-text{ font-size:14px; }
  .mk-logo-text small{ display:none; }
  .mk-logo-mark{ width:34px; height:34px; font-size:15px; border-radius:10px; }
  .mk-nav-actions .mk-btn{ height:42px; padding:0 14px; font-size:14px; }

  .mk-hero2-media{ min-height:0; }
  .mk-hero2-inner{ padding:64px 0 108px; }
  .mk-hero2-sub{ font-size:15px; margin-bottom:26px; }
  .mk-hero2-actions .mk-btn{ width:100%; }
  .mk-hero2-bar ul{ gap:10px 20px; font-size:13px; padding:11px 0; }

  .mk-sec-head{ margin-bottom:32px; }
  .mk-sec-head--row{ flex-direction:column; align-items:flex-start; gap:14px; }

  .mk-stat-row{ padding:24px 14px; }

  .mk-card-body,
  .mk-mosaic-card--wide .mk-card-body{ padding:22px 20px 24px; }
  .mk-mosaic-card--lg .mk-card-media{ height:210px; }

  .mk-scroller{ padding-left:2px; padding-right:2px; }
  .mk-slide{ flex:0 0 262px; }

  .mk-compare-bar{ grid-template-columns:1fr; }
  .mk-compare-side{ padding:28px 22px; }
  .mk-compare-side--pro{ border-left:none; border-top:1px solid var(--mk-line); }

  .mk-faq .mk-faq-title{ padding:17px 18px; font-size:16px; }
  .mk-faq .mk-faq-panel-inner{ padding:0 18px 18px; }

  .mk-cta{ padding:56px 0; }
  .mk-cta-inner{ flex-direction:column; align-items:flex-start; }
  .mk-cta-inner .mk-btn{ width:100%; }

  .mk-footer{ padding:48px 0 24px; }
  .mk-footer-grid{ grid-template-columns:1fr; gap:28px; }
  .mk-footer-bottom{ flex-direction:column; align-items:flex-start; margin-top:32px; }
}

@media (max-width:520px){
  .mk-logo-text{ max-width:104px; line-height:1.2; }
  .mk-nav-actions .mk-btn{ padding:0 12px; }
  .mk-stat-row{ grid-template-columns:1fr; }
  .mk-stat{ border-right:none; border-bottom:1px solid var(--mk-line); padding-bottom:20px; }
  .mk-stat:last-child{ border-bottom:none; padding-bottom:0; }
  .mk-hero2 h1{ font-size:26px; }
}

@media (prefers-reduced-motion:reduce){
  *{ animation-duration:.01ms !important; transition-duration:.01ms !important; scroll-behavior:auto !important; }
}

/* roulang page: category3 */
:root{
  --mk-primary:#1B62D6;
  --mk-primary-700:#144FAF;
  --mk-primary-50:#EAF1FE;
  --mk-accent:#FF7A2F;
  --mk-accent-700:#E9661C;
  --mk-success:#12A36B;
  --mk-star:#F5A524;
  --mk-ink:#16202E;
  --mk-ink-2:#55607A;
  --mk-ink-3:#8A94A6;
  --mk-bg:#F5F7FA;
  --mk-surface:#FFFFFF;
  --mk-line:#E5E9F0;
  --mk-dark:#14202E;
  --mk-radius-sm:8px;
  --mk-radius-md:10px;
  --mk-radius-lg:16px;
  --mk-radius-pill:999px;
  --mk-shadow-1:0 1px 2px rgba(16,24,40,.06),0 8px 24px rgba(16,24,40,.06);
  --mk-shadow-2:0 12px 32px rgba(16,24,40,.12);
  --mk-space-section:96px;
  --mk-container:1200px;
  --mk-nav-h:72px;
  --mk-font:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mk-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--mk-nav-h) + 20px)}
body{
  margin:0;
  background:var(--mk-bg);
  color:var(--mk-ink);
  font-family:var(--mk-font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0}
a{color:var(--mk-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--mk-primary-700)}
button,input{font-family:inherit}
h1,h2,h3,h4,h5,p,dl,dt,dd,figure,ul,ol{margin:0}
ul,ol{list-style:none;padding:0}
table{border-collapse:collapse}
::selection{background:rgba(27,98,214,.16)}
.mk-container{width:100%;max-width:var(--mk-container);margin:0 auto;padding:0 20px}
.mk-section{padding:var(--mk-space-section) 0}
.mk-section--tight{padding:56px 0}
.mk-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--mk-primary);text-transform:none}
.mk-eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--mk-accent)}
.mk-muted{color:var(--mk-ink-2)}
.mk-mono{font-family:var(--mk-mono);font-variant-numeric:tabular-nums}
/* ============ 导航 ============ */
.mk-header{
  position:sticky;top:0;z-index:80;
  background:var(--mk-surface);
  border-bottom:1px solid var(--mk-line);
  min-height:var(--mk-nav-h);
  display:flex;align-items:center;
  transition:box-shadow .22s ease;
}
.mk-header.is-scrolled{box-shadow:var(--mk-shadow-1)}
.mk-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.mk-logo{display:inline-flex;align-items:center;gap:10px;color:var(--mk-ink);font-weight:700;flex:0 0 auto}
.mk-logo:hover{color:var(--mk-ink)}
.mk-logo-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  background:var(--mk-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;box-shadow:0 6px 16px rgba(27,98,214,.26);
}
.mk-logo-text{display:flex;flex-direction:column;font-size:17px;line-height:1.16;letter-spacing:-.01em}
.mk-logo-text small{font-size:11px;font-weight:500;color:var(--mk-ink-3);letter-spacing:.02em;margin-top:2px}
.mk-nav-links{display:flex;align-items:center;gap:28px}
.mk-nav-links a{position:relative;display:inline-block;padding:8px 0;font-size:15px;font-weight:500;color:var(--mk-ink-2)}
.mk-nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;
  background:transparent;transition:background .2s ease;
}
.mk-nav-links a:hover{color:var(--mk-primary)}
.mk-nav-links a:hover::after{background:var(--mk-primary)}
.mk-nav-links a.is-active{color:var(--mk-primary);font-weight:600}
.mk-nav-links a.is-active::after{background:var(--mk-primary)}
.mk-nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.mk-nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1.5px solid var(--mk-line);border-radius:var(--mk-radius-md);
  background:#fff;color:var(--mk-ink);font-size:17px;cursor:pointer;
}
.mk-nav-toggle:hover{border-color:var(--mk-primary);color:var(--mk-primary)}
/* ============ 按钮 ============ */
.mk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--mk-radius-md);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.mk-btn i{font-size:14px}
.mk-btn--primary{background:var(--mk-primary);color:#fff}
.mk-btn--primary:hover{background:var(--mk-primary-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(27,98,214,.24)}
.mk-btn--accent{background:var(--mk-accent);color:#fff}
.mk-btn--accent:hover{background:var(--mk-accent-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,122,47,.28)}
.mk-btn--ghost{background:#fff;color:var(--mk-primary);border-color:#C9DAF8}
.mk-btn--ghost:hover{background:var(--mk-primary-50);color:var(--mk-primary-700);border-color:var(--mk-primary)}
.mk-btn--lg{height:52px;padding:0 30px;font-size:16px}
.mk-btn--block{width:100%}
.mk-btn:active{transform:translateY(0)}
.mk-btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--mk-accent);outline-offset:2px}
.mk-link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--mk-primary)}
.mk-link-more i{font-size:12px;transition:transform .18s ease}
.mk-link-more:hover i{transform:translateX(3px)}
/* ============ 顶部信息条 ============ */
.mk-topbar{background:var(--mk-primary-50);border-bottom:1px solid #D8E4FA}
.mk-topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;font-size:13px;color:var(--mk-ink-2);flex-wrap:wrap}
.mk-topbar-inner strong{color:var(--mk-primary);font-weight:600}
.mk-topbar-inner a{font-size:13px;font-weight:600}
/* ============ 内页横幅 ============ */
.mk-banner{position:relative;overflow:hidden;background:#fff;border-bottom:1px solid var(--mk-line)}
.mk-banner-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center 40%;opacity:.22}
.mk-banner-shade{position:absolute;inset:0;background:linear-gradient(180deg,#ffffff 0%,rgba(255,255,255,.74) 58%,#ffffff 100%)}
.mk-banner-inner{position:relative;z-index:2;padding:30px 0 34px}
.mk-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--mk-ink-3)}
.mk-breadcrumb a{color:var(--mk-ink-2)}
.mk-breadcrumb a:hover{color:var(--mk-primary)}
.mk-breadcrumb .mk-crumb-sep{color:#C2C9D6}
.mk-breadcrumb [aria-current="page"]{color:var(--mk-ink-3)}
.mk-banner-lead{margin-top:14px;max-width:760px;font-size:15px;color:var(--mk-ink-2)}
/* ============ 主体布局 ============ */
.mk-spec{display:grid;grid-template-columns:308px minmax(0,1fr);gap:48px;align-items:start;padding:56px 0 0}
.mk-spec-aside{position:sticky;top:calc(var(--mk-nav-h) + 24px)}
.mk-aside-card{
  background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-radius-lg);
  box-shadow:var(--mk-shadow-1);padding:26px 24px;
}
.mk-aside-card h1{font-size:clamp(22px,2.1vw,27px);line-height:1.32;font-weight:700;letter-spacing:-.01em;color:var(--mk-ink)}
.mk-aside-lead{margin-top:12px;font-size:14px;color:var(--mk-ink-2);line-height:1.7}
.mk-quick{margin-top:18px;padding-top:16px;border-top:1px solid var(--mk-line);display:flex;flex-direction:column;gap:2px}
.mk-quick a{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:var(--mk-radius-sm);
  font-size:14.5px;color:var(--mk-ink-2);transition:background .18s ease,color .18s ease;
}
.mk-quick a i{font-size:11px;color:var(--mk-ink-3);transition:color .18s ease}
.mk-quick a:hover{background:var(--mk-primary-50);color:var(--mk-primary)}
.mk-quick a:hover i{color:var(--mk-primary)}
.mk-aside-cta{margin-top:20px;padding-top:18px;border-top:1px solid var(--mk-line)}
.mk-aside-note{margin-top:10px;font-size:12.5px;color:var(--mk-ink-3);text-align:center}
.mk-spec-main{min-width:0}
.mk-figure{
  border:1px solid var(--mk-line);border-radius:var(--mk-radius-lg);overflow:hidden;
  background:#fff;box-shadow:var(--mk-shadow-1);margin-bottom:24px;
}
.mk-figure img{width:100%;aspect-ratio:21/9;object-fit:cover}
.mk-figure figcaption{padding:11px 18px;font-size:13px;color:var(--mk-ink-3);border-top:1px solid var(--mk-line)}
.mk-block{
  background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-radius-lg);
  padding:26px 28px 28px;
}
.mk-block + .mk-block{margin-top:22px}
.mk-block-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-bottom:14px;border-bottom:1px solid var(--mk-line);margin-bottom:20px}
.mk-block-head h2{font-size:clamp(20px,1.9vw,25px);font-weight:700;letter-spacing:-.01em}
.mk-block-head .mk-block-tag{font-size:13px;color:var(--mk-ink-3)}
.mk-block-intro{font-size:14.5px;color:var(--mk-ink-2);margin-bottom:18px}
/* 定义列表 */
.mk-dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 36px}
.mk-dl > div{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px dashed var(--mk-line)}
.mk-dl dt{font-size:14px;color:var(--mk-ink-3);flex:0 0 auto}
.mk-dl dd{font-size:14.5px;color:var(--mk-ink);font-weight:500;text-align:right;line-height:1.6}
/* 规格条 */
.mk-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--mk-line);border:1px solid var(--mk-line);border-radius:var(--mk-radius-md);overflow:hidden}
.mk-metric{background:#fff;padding:20px 18px}
.mk-metric b{display:block;font-family:var(--mk-mono);font-size:25px;line-height:1.2;font-weight:700;color:var(--mk-primary);font-variant-numeric:tabular-nums}
.mk-metric span{display:block;margin-top:6px;font-size:13px;color:var(--mk-ink-3)}
/* 对比双列 */
.mk-compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.mk-compare-col{border:1px solid var(--mk-line);border-radius:var(--mk-radius-md);padding:20px 20px 16px}
.mk-compare-col h3{font-size:17px;font-weight:600;display:flex;align-items:center;gap:9px;margin-bottom:6px}
.mk-compare-col h3 i{font-size:15px;color:var(--mk-success)}
.mk-compare-col--alt h3 i{color:var(--mk-accent)}
.mk-compare-col .mk-compare-sub{font-size:13px;color:var(--mk-ink-3);margin-bottom:14px}
.mk-compare-col ul li{position:relative;padding:0 0 10px 22px;font-size:14.5px;color:var(--mk-ink-2);line-height:1.7}
.mk-compare-col ul li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:1px;font-size:12px;color:var(--mk-success);
}
.mk-compare-col--alt ul li::before{content:"\f017";color:var(--mk-accent)}
.mk-compare-col .mk-compare-foot{margin-top:6px;padding-top:12px;border-top:1px dashed var(--mk-line);font-size:13px;color:var(--mk-ink-3)}
/* 时间轴 */
.mk-timeline{position:relative;padding-left:34px}
.mk-timeline::before{content:"";position:absolute;left:10px;top:8px;bottom:8px;width:2px;border-radius:2px;background:var(--mk-line)}
.mk-step{position:relative;padding-bottom:22px}
.mk-step:last-child{padding-bottom:0}
.mk-step-dot{
  position:absolute;left:-34px;top:1px;width:22px;height:22px;border-radius:50%;
  background:var(--mk-primary-50);color:var(--mk-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;
  border:1px solid #C9DAF8;
}
.mk-step b{display:block;font-size:16px;font-weight:600;color:var(--mk-ink);margin-bottom:4px}
.mk-step p{font-size:14.5px;color:var(--mk-ink-2);line-height:1.75}
/* 清单 */
.mk-checklist li{display:flex;gap:12px;padding:13px 0;border-bottom:1px dashed var(--mk-line);font-size:14.5px;line-height:1.7}
.mk-checklist li:last-child{border-bottom:0;padding-bottom:0}
.mk-checklist i{color:var(--mk-success);font-size:14px;margin-top:5px;flex:0 0 auto}
.mk-checklist b{display:block;font-size:15px;font-weight:600;color:var(--mk-ink);margin-bottom:2px}
.mk-checklist span{color:var(--mk-ink-2)}
/* ============ 表单 ============ */
.mk-field-row{display:flex;gap:12px;align-items:center}
.mk-input{
  height:46px;width:100%;padding:0 14px;border-radius:var(--mk-radius-md);
  border:1.5px solid var(--mk-line);background:#fff;color:var(--mk-ink);font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.mk-input::placeholder{color:var(--mk-ink-3)}
.mk-input:focus{border-color:var(--mk-primary);outline:none;box-shadow:0 0 0 3px rgba(27,98,214,.14)}
/* ============ FAQ ============ */
.mk-faq-section{padding:var(--mk-space-section) 0 0}
.mk-faq-head{max-width:660px;margin-bottom:28px}
.mk-faq-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;letter-spacing:-.01em;margin-top:12px}
.mk-faq-head p{margin-top:12px;font-size:15px;color:var(--mk-ink-2)}
ul.mk-faq{background:transparent;border:0;margin:0}
ul.mk-faq .accordion-item{
  background:#fff;border:1px solid var(--mk-line);border-radius:var(--mk-radius-lg);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--mk-shadow-1);
  transition:border-color .18s ease,box-shadow .18s ease;
}
ul.mk-faq .accordion-item:hover{border-color:#D3DEF3}
ul.mk-faq .accordion-title{
  border:0;background:transparent;padding:19px 58px 19px 22px;
  font-size:17px;font-weight:600;color:var(--mk-ink);line-height:1.5;
}
ul.mk-faq .accordion-title:hover,ul.mk-faq .accordion-title:focus{background:var(--mk-primary-50)}
ul.mk-faq .accordion-title::before{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  right:22px;top:50%;margin-top:-9px;font-size:13px;color:var(--mk-primary);
  transition:transform .22s ease;
}
ul.mk-faq .accordion-item.is-active .accordion-title::before{content:"\f068";transform:none}
ul.mk-faq .accordion-content{border:0;border-top:1px solid var(--mk-line);padding:18px 22px 20px;color:var(--mk-ink-2);font-size:15px;line-height:1.8;background:#fff}
ul.mk-faq .accordion-content p{margin-bottom:10px}
ul.mk-faq .accordion-content p:last-child{margin-bottom:0}
/* ============ CTA ============ */
.mk-cta{background:var(--mk-dark);border-top:3px solid var(--mk-accent);padding:56px 0;margin-top:var(--mk-space-section)}
.mk-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.mk-cta-copy{max-width:640px}
.mk-cta h2{color:#fff;font-size:clamp(22px,2.3vw,30px);line-height:1.3;letter-spacing:-.01em}
.mk-cta p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.72)}
.mk-cta .mk-btn--accent{box-shadow:0 10px 26px rgba(255,122,47,.28)}
/* ============ 页脚 ============ */
.mk-footer{background:var(--mk-dark);color:rgba(255,255,255,.72);padding:56px 0 24px;font-size:14px;border-top:1px solid rgba(255,255,255,.08)}
.mk-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.mk-footer .mk-logo{margin-bottom:16px}
.mk-footer .mk-logo-mark{background:var(--mk-accent);box-shadow:none}
.mk-footer .mk-logo-text{color:#fff}
.mk-footer .mk-logo-text small{color:rgba(255,255,255,.5)}
.mk-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62)}
.mk-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.mk-footer ul li{margin-bottom:9px;font-size:14px}
.mk-footer a{color:rgba(255,255,255,.72)}
.mk-footer a:hover{color:var(--mk-accent)}
.mk-footer-bottom{
  margin-top:40px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
/* ============ 断点 ============ */
@media (min-width:1440px){
  :root{--mk-container:1280px}
}
@media (max-width:1200px){
  .mk-spec{grid-template-columns:280px minmax(0,1fr);gap:36px}
}
@media (max-width:1024px){
  :root{--mk-space-section:72px}
  .mk-spec{grid-template-columns:minmax(0,1fr);gap:28px;padding-top:40px}
  .mk-spec-aside{position:static}
  .mk-nav-links{gap:20px}
  .mk-nav-links a{font-size:14px}
  .mk-footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:992px){
  .mk-nav-links{
    position:fixed;top:var(--mk-nav-h);left:0;right:0;z-index:70;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--mk-line);
    padding:10px 20px 20px;box-shadow:var(--mk-shadow-2);
    max-height:calc(100vh - var(--mk-nav-h));overflow-y:auto;
  }
  .mk-nav-links.is-open{display:flex}
  .mk-nav-links a{padding:13px 4px;border-bottom:1px solid var(--mk-line);font-size:15px}
  .mk-nav-links a::after{display:none}
  .mk-nav-toggle{display:inline-flex}
  .mk-nav-actions .mk-btn--ghost{display:none}
}
@media (max-width:768px){
  :root{--mk-space-section:56px;--mk-nav-h:64px}
  .mk-dl{grid-template-columns:minmax(0,1fr)}
  .mk-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mk-compare{grid-template-columns:minmax(0,1fr)}
  .mk-block{padding:22px 18px 24px}
  .mk-aside-card{padding:22px 18px}
  .mk-figure img{aspect-ratio:16/9}
  .mk-cta{padding:44px 0}
  .mk-cta .mk-btn{width:100%}
  .mk-footer-grid{grid-template-columns:1fr}
  .mk-footer-bottom{flex-direction:column;align-items:flex-start}
  ul.mk-faq .accordion-title{padding:16px 52px 16px 18px;font-size:16px}
}
@media (max-width:520px){
  .mk-container{padding:0 16px}
  .mk-logo-text{font-size:15px}
  .mk-logo-text small{font-size:10.5px}
  .mk-btn{padding:0 18px;font-size:14.5px}
  .mk-btn--lg{width:100%}
  .mk-metrics{grid-template-columns:minmax(0,1fr)}
  .mk-block-head{flex-direction:column;align-items:flex-start;gap:6px}
  .mk-dl dd{text-align:left}
  .mk-dl > div{flex-direction:column;gap:4px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}