/* roulang page: index */
:root{
  --jy-brand:#1A6BE0;
  --jy-brand-dark:#1355BE;
  --jy-brand-soft:#E8F0FD;
  --jy-accent:#FF7A29;
  --jy-accent-dark:#E86A1C;
  --jy-teal:#17B8A6;
  --jy-bg:#F6F9FD;
  --jy-surface:#FFFFFF;
  --jy-line:#E6EDF7;
  --jy-line-soft:#EEF3FA;
  --jy-text:#172335;
  --jy-text-2:#5B6B80;
  --jy-text-3:#8A99AD;
  --jy-dark:#0D1B2E;
  --jy-dark-2:#14263F;
  --jy-r-card:16px;
  --jy-r-img:12px;
  --jy-r-btn:10px;
  --jy-r-pill:999px;
  --jy-sh-1:0 2px 8px rgba(23,35,53,.04);
  --jy-sh-2:0 12px 32px rgba(20,80,170,.10);
  --jy-ease:cubic-bezier(.22,.61,.36,1);
  --jy-nav-h:72px;
  --bs-primary:#1A6BE0;
  --bs-body-font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.8;
  color:var(--jy-text);
  background:var(--jy-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;letter-spacing:-.2px;line-height:1.28;font-weight:700;color:var(--jy-text)}
p{margin:0}
img{max-width:100%;display:block}
a{color:var(--jy-brand);text-decoration:none;transition:color .25s var(--jy-ease)}
a:hover{color:var(--jy-brand-dark)}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}

.jy-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.jy-container-wide{max-width:1320px}
.jy-section{padding:96px 0}
.jy-section-alt{background:var(--jy-surface)}
.jy-section-head{max-width:760px;margin-bottom:44px}
.jy-section-head h2{font-size:clamp(24px,3vw,32px);margin-top:14px}
.jy-section-head p{margin-top:14px;color:var(--jy-text-2);font-size:16px}
.jy-section-head-center{margin-left:auto;margin-right:auto;text-align:center}
.jy-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:500;letter-spacing:.06em;
  color:var(--jy-brand);background:var(--jy-brand-soft);
  border-radius:var(--jy-r-pill);padding:6px 14px;
}

/* 按钮 */
.jy-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--jy-r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background .25s var(--jy-ease),color .25s var(--jy-ease),transform .25s var(--jy-ease),box-shadow .25s var(--jy-ease),border-color .25s var(--jy-ease);
}
.jy-btn:focus-visible{outline:2px solid var(--jy-brand);outline-offset:2px}
.jy-btn-accent{background:var(--jy-accent);color:#fff;box-shadow:0 8px 20px rgba(255,122,41,.26)}
.jy-btn-accent:hover{background:var(--jy-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,41,.32)}
.jy-btn-accent:active{transform:translateY(0)}
.jy-btn-outline{background:#fff;border-color:var(--jy-line);color:var(--jy-brand)}
.jy-btn-outline:hover{background:var(--jy-brand-soft);border-color:var(--jy-brand);color:var(--jy-brand-dark);transform:translateY(-1px)}
.jy-btn-light{background:#fff;color:var(--jy-dark);border-color:rgba(255,255,255,.16)}
.jy-btn-light:hover{background:var(--jy-brand-soft);color:var(--jy-brand-dark);transform:translateY(-1px)}
.jy-btn-sm{height:40px;padding:0 20px;font-size:14px}
.jy-btn-lg{height:52px;padding:0 32px;font-size:16px}
.jy-link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--jy-brand)}
.jy-link-more span{transition:transform .25s var(--jy-ease)}
.jy-link-more:hover span{transform:translateX(4px)}

/* 导航 */
.jy-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--jy-line);
  transition:box-shadow .25s var(--jy-ease);
}
.jy-header.is-scrolled{box-shadow:0 6px 22px rgba(20,80,170,.08)}
.jy-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--jy-nav-h);transition:height .25s var(--jy-ease)}
.jy-header.is-scrolled .jy-nav{height:64px}
.jy-logo{display:inline-flex;align-items:center;gap:12px;color:var(--jy-text)}
.jy-logo:hover{color:var(--jy-text)}
.jy-logo-mark{
  width:40px;height:40px;border-radius:12px;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:var(--jy-brand);color:#fff;font-size:19px;font-weight:700;
  box-shadow:0 8px 18px rgba(26,107,224,.28);
}
.jy-logo-text{display:flex;flex-direction:column;line-height:1.2}
.jy-logo-text strong{font-size:17px;font-weight:700;letter-spacing:-.2px}
.jy-logo-text em{font-style:normal;font-size:11px;color:var(--jy-text-3);letter-spacing:.04em}
.jy-nav-menu{display:flex;align-items:center;gap:32px}
.jy-nav-menu a{
  position:relative;font-size:15px;font-weight:500;color:var(--jy-text-2);padding:6px 0;
}
.jy-nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--jy-brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--jy-ease);
}
.jy-nav-menu a:hover{color:var(--jy-brand)}
.jy-nav-menu a:hover::after{transform:scaleX(1)}
.jy-nav-menu a[aria-current="page"]{color:var(--jy-brand)}
.jy-nav-menu a[aria-current="page"]::after{transform:scaleX(1)}
.jy-nav-right{display:flex;align-items:center;gap:12px}
.jy-burger{
  display:none;width:44px;height:44px;border:1px solid var(--jy-line);
  background:#fff;border-radius:12px;position:relative;cursor:pointer;
}
.jy-burger span{
  position:absolute;left:12px;right:12px;height:2px;background:var(--jy-text);border-radius:2px;
  transition:transform .25s var(--jy-ease),opacity .2s var(--jy-ease);
}
.jy-burger span:nth-child(1){top:15px}
.jy-burger span:nth-child(2){top:21px}
.jy-burger span:nth-child(3){top:27px}
.jy-burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.jy-burger.is-open span:nth-child(2){opacity:0}
.jy-burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.jy-drawer-mask{
  position:fixed;inset:0;background:rgba(13,27,46,.42);
  opacity:0;visibility:hidden;transition:opacity .25s var(--jy-ease),visibility .25s;z-index:1050;
}
.jy-drawer-mask.is-open{opacity:1;visibility:visible}
.jy-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:1060;
  background:#fff;padding:24px 22px;overflow-y:auto;
  transform:translateX(102%);transition:transform .28s var(--jy-ease);
  box-shadow:-12px 0 40px rgba(13,27,46,.18);
}
.jy-drawer.is-open{transform:translateX(0)}
.jy-drawer .jy-logo{padding-bottom:20px;border-bottom:1px solid var(--jy-line)}
.jy-drawer-group{margin-top:22px}
.jy-drawer-group h4{font-size:12px;color:var(--jy-text-3);font-weight:500;letter-spacing:.08em;margin-bottom:10px}
.jy-drawer-group a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;font-size:15px;font-weight:500;color:var(--jy-text);
  border-bottom:1px solid var(--jy-line-soft);
}
.jy-drawer-group a:hover{color:var(--jy-brand)}
.jy-drawer .jy-btn{width:100%;margin-top:24px}

/* Hero */
.jy-hero{
  position:relative;overflow:hidden;background:#fff;
  padding:72px 0 84px;
}
.jy-hero::before{
  content:"";position:absolute;right:-160px;top:-140px;width:720px;height:720px;
  background:radial-gradient(circle,rgba(26,107,224,.13) 0%,rgba(26,107,224,0) 66%);
  pointer-events:none;
}
.jy-hero-inner{position:relative;z-index:1}
.jy-hero-title{
  font-size:clamp(30px,4.4vw,44px);margin:20px 0 0;font-weight:700;letter-spacing:-.4px;
}
.jy-hero-title b{color:var(--jy-brand);font-weight:700}
.jy-hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--jy-text-2);max-width:560px}
.jy-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.jy-hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:26px;font-size:14px;color:var(--jy-text-3);
}
.jy-hero-meta span{position:relative;padding-right:11px}
.jy-hero-meta span:not(:last-child)::after{
  content:"";position:absolute;right:0;top:50%;width:1px;height:12px;
  background:var(--jy-line);transform:translateY(-50%);
}
.jy-device-frame{
  border-radius:20px;overflow:hidden;background:var(--jy-brand-soft);
  border:1px solid var(--jy-line);box-shadow:0 24px 60px rgba(20,80,170,.14);
}
.jy-device-frame img{width:100%;aspect-ratio:16/10;object-fit:cover}
.jy-hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  margin-top:26px;padding-top:24px;border-top:1px solid var(--jy-line-soft);
}
.jy-hero-stats div strong{display:block;font-size:26px;font-weight:600;color:var(--jy-brand);line-height:1.2}
.jy-hero-stats div span{font-size:13px;color:var(--jy-text-3)}

/* 价值区 */
.jy-value-grid{display:grid;grid-template-columns:1.15fr 1fr;grid-template-rows:auto auto;gap:24px}
.jy-card{
  position:relative;background:var(--jy-surface);border:1px solid var(--jy-line);
  border-radius:var(--jy-r-card);padding:28px;box-shadow:var(--jy-sh-1);
  transition:transform .25s var(--jy-ease),box-shadow .25s var(--jy-ease),border-color .25s var(--jy-ease);
}
.jy-card:hover{transform:translateY(-4px);box-shadow:var(--jy-sh-2);border-color:#D7E5FA}
.jy-value-main{
  grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between;
  background:linear-gradient(180deg,#FFFFFF 0%,#F8FBFF 100%);
}
.jy-value-main img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--jy-r-img);
  border:1px solid var(--jy-line);margin-bottom:22px;
}
.jy-icon-box{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--jy-brand-soft);color:var(--jy-brand);margin-bottom:18px;flex:none;
}
.jy-card h3{font-size:20px;font-weight:600;margin-bottom:12px}
.jy-card p{font-size:15px;color:var(--jy-text-2)}
.jy-point-list{margin-top:18px;display:grid;gap:10px}
.jy-point-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--jy-text-2)}
.jy-point-list li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--jy-accent);
  margin-top:10px;flex:none;
}
.jy-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;color:var(--jy-brand);
  background:var(--jy-brand-soft);border-radius:var(--jy-r-pill);padding:5px 12px;
}
.jy-badge-teal{color:#0E8C7E;background:rgba(23,184,166,.13)}

/* 截图横滑 */
.jy-shots{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;-webkit-overflow-scrolling:touch;
}
.jy-shots::-webkit-scrollbar{height:6px}
.jy-shots::-webkit-scrollbar-thumb{background:var(--jy-line);border-radius:999px}
.jy-shot{
  flex:0 0 calc((100% - 48px)/3);scroll-snap-align:start;margin:0;
  background:#fff;border:1px solid var(--jy-line);border-radius:var(--jy-r-card);
  padding:14px;box-shadow:var(--jy-sh-1);
  transition:transform .25s var(--jy-ease),box-shadow .25s var(--jy-ease);
}
.jy-shot:hover{transform:translateY(-4px);box-shadow:var(--jy-sh-2)}
.jy-shot img{
  width:100%;aspect-ratio:9/16;object-fit:cover;
  border-radius:var(--jy-r-img);border:1px solid var(--jy-line);
}
.jy-shot figcaption{
  margin-top:14px;font-size:14px;color:var(--jy-text-2);text-align:center;
}

/* 系统要求 */
.jy-spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.jy-spec-card h3{font-size:20px;font-weight:600;display:flex;align-items:center;gap:10px;margin-bottom:6px}
.jy-spec-card .jy-os-tag{font-size:12px;font-weight:500;color:var(--jy-teal);background:rgba(23,184,166,.12);border-radius:var(--jy-r-pill);padding:4px 10px}
.jy-spec-card p{font-size:14px;color:var(--jy-text-3);margin-bottom:18px}
.jy-spec{margin:0}
.jy-spec-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:13px 0;border-top:1px solid var(--jy-line-soft);
}
.jy-spec-row dt{font-size:14px;color:var(--jy-text-3);font-weight:400}
.jy-spec-row dd{margin:0;font-size:14px;color:var(--jy-text);font-weight:500;text-align:right}

/* 评价墙 */
.jy-review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.jy-review-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.jy-review-head img{width:40px;height:40px;border-radius:50%;object-fit:cover;border:1px solid var(--jy-line)}
.jy-review-head strong{display:block;font-size:15px;font-weight:600}
.jy-review-head small{font-size:12px;color:var(--jy-text-3)}
.jy-stars{color:var(--jy-accent);font-size:14px;letter-spacing:2px;margin-bottom:10px}
.jy-review-card p{font-size:15px;color:var(--jy-text-2)}
.jy-review-foot{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--jy-line-soft);
  font-size:13px;color:var(--jy-text-3);display:flex;justify-content:space-between;gap:12px;
}

/* 下载区 */
.jy-download{
  position:relative;overflow:hidden;background:var(--jy-dark);
  border-radius:24px;padding:60px 56px;color:#fff;
}
.jy-download::before{
  content:"";position:absolute;right:-120px;bottom:-160px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(255,122,41,.22) 0%,rgba(255,122,41,0) 68%);
}
.jy-download::after{
  content:"";position:absolute;left:-100px;top:-140px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(26,107,224,.30) 0%,rgba(26,107,224,0) 70%);
}
.jy-download-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center}
.jy-download h2{color:#fff;font-size:clamp(24px,3vw,32px)}
.jy-download p{color:rgba(255,255,255,.72);font-size:15px;margin-top:16px;max-width:520px}
.jy-download-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.jy-dl-list{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:26px;font-size:14px;color:rgba(255,255,255,.66)}
.jy-dl-list span{display:flex;align-items:center;gap:8px}
.jy-dl-list span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--jy-teal)}
.jy-qr-card{
  background:#fff;border-radius:20px;padding:24px;text-align:center;
  box-shadow:0 24px 60px rgba(0,0,0,.28);
}
.jy-qr-card svg{width:150px;height:150px;margin:0 auto}
.jy-qr-card strong{display:block;margin-top:14px;font-size:15px;color:var(--jy-text)}
.jy-qr-card span{display:block;margin-top:4px;font-size:13px;color:var(--jy-text-3)}

/* 最新信息 CMS */
.jy-news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.jy-news-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.jy-news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--jy-surface);border:1px solid var(--jy-line);border-radius:var(--jy-r-card);
  box-shadow:var(--jy-sh-1);
  transition:transform .25s var(--jy-ease),box-shadow .25s var(--jy-ease),border-color .25s var(--jy-ease);
}
.jy-news-card:hover{transform:translateY(-4px);box-shadow:var(--jy-sh-2);border-color:#D7E5FA}
.jy-news-card:hover .jy-news-title a{color:var(--jy-brand)}
.jy-news-card.is-feature{grid-column:span 2}
.jy-news-cover{display:block;overflow:hidden;background:var(--jy-line-soft)}
.jy-news-cover img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;
  transition:transform .35s var(--jy-ease);
}
.jy-news-card:hover .jy-news-cover img{transform:scale(1.03)}
.jy-news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.jy-news-title{font-size:20px;font-weight:600;margin:12px 0 0;line-height:1.45}
.jy-news-title a{
  color:var(--jy-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.jy-news-desc{
  margin-top:10px;font-size:14px;color:var(--jy-text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.jy-news-meta{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--jy-text-3);
}
.jy-news-meta .jy-arrow{color:var(--jy-brand);font-weight:500;transition:transform .25s var(--jy-ease)}
.jy-news-card:hover .jy-news-meta .jy-arrow{transform:translateX(4px)}
.jy-news-empty{
  grid-column:1 / -1;min-height:240px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:16px;text-align:center;
  background:var(--jy-surface);border:1px dashed var(--jy-line);border-radius:var(--jy-r-card);
  padding:40px 24px;
}
.jy-news-empty .jy-empty-img{
  width:56px;height:56px;border-radius:16px;background:var(--jy-line-soft);
  display:flex;align-items:center;justify-content:center;color:var(--jy-text-3);
}
.jy-news-empty p{font-size:15px;color:var(--jy-text-3)}

/* FAQ */
.jy-accordion .accordion-item{
  background:#fff;border:1px solid var(--jy-line);border-radius:12px;
  margin-bottom:14px;overflow:hidden;
}
.jy-accordion .accordion-header{margin:0}
.jy-accordion .accordion-button{
  font-size:16px;font-weight:600;color:var(--jy-text);background:#fff;
  padding:20px 24px;box-shadow:none;border-radius:12px;
}
.jy-accordion .accordion-button:not(.collapsed){
  background:var(--jy-brand-soft);color:var(--jy-brand);
  box-shadow:inset 3px 0 0 var(--jy-brand);
}
.jy-accordion .accordion-button:focus{box-shadow:inset 3px 0 0 var(--jy-brand),0 0 0 3px rgba(26,107,224,.14)}
.jy-accordion .accordion-button::after{
  background-image:none;content:"+";font-size:20px;font-weight:400;color:var(--jy-brand);
  width:26px;height:26px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--jy-line);border-radius:50%;transition:all .25s var(--jy-ease);
}
.jy-accordion .accordion-button:not(.collapsed)::after{
  content:"−";background:var(--jy-brand);color:#fff;border-color:var(--jy-brand);
}
.jy-accordion .accordion-body{padding:4px 24px 24px;font-size:15px;color:var(--jy-text-2);line-height:1.85}

/* 页脚 */
.jy-footer{background:#F1F6FC;border-top:1px solid var(--jy-line);padding:64px 0 0;margin-top:0}
.jy-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.jy-footer-brand p{margin-top:16px;font-size:14px;color:var(--jy-text-2);max-width:320px}
.jy-footer-tags{margin-top:14px;font-size:13px;color:var(--jy-text-3)}
.jy-footer-col h3{font-size:14px;font-weight:600;color:var(--jy-text);margin-bottom:16px}
.jy-footer-col a{display:block;font-size:14px;color:var(--jy-text-2);padding:6px 0}
.jy-footer-col a:hover{color:var(--jy-brand)}
.jy-qr-mini{
  width:104px;height:104px;background:#fff;border:1px solid var(--jy-line);
  border-radius:14px;padding:8px;
}
.jy-qr-mini svg{width:100%;height:100%}
.jy-footer-col p{font-size:13px;color:var(--jy-text-3);margin-top:10px}
.jy-footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--jy-line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--jy-text-3);
}

/* 动效 */
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* 响应式 */
@media (max-width:1199.98px){
  .jy-section{padding:80px 0}
  .jy-download{padding:52px 40px}
}
@media (max-width:991.98px){
  .jy-nav-menu{display:none}
  .jy-burger{display:block}
  .jy-nav-right .jy-btn{display:none}
  .jy-hero{padding:52px 0 64px}
  .jy-hero-sub{max-width:none}
  .jy-hero-stats{margin-top:22px}
  .jy-device-frame{margin-top:8px}
  .jy-value-grid{grid-template-columns:1fr;grid-template-rows:auto}
  .jy-value-main{grid-row:auto}
  .jy-spec-grid{grid-template-columns:1fr 1fr}
  .jy-review-grid{grid-template-columns:1fr 1fr}
  .jy-news-grid{grid-template-columns:1fr 1fr}
  .jy-news-card.is-feature{grid-column:span 2}
  .jy-download-inner{grid-template-columns:1fr;gap:32px}
  .jy-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .jy-shot{flex:0 0 calc((100% - 24px)/2)}
}
@media (max-width:767.98px){
  .jy-section{padding:56px 0}
  .jy-section-head{margin-bottom:32px}
  .jy-hero-title{font-size:clamp(26px,7vw,32px)}
  .jy-hero-actions .jy-btn{width:100%}
  .jy-spec-grid{grid-template-columns:1fr}
  .jy-review-grid{grid-template-columns:1fr}
  .jy-news-head{flex-direction:column;align-items:flex-start;gap:12px}
  .jy-news-grid{grid-template-columns:1fr}
  .jy-news-card.is-feature{grid-column:auto}
  .jy-download{padding:40px 24px;border-radius:20px}
  .jy-download-btns .jy-btn{width:100%}
  .jy-footer-grid{grid-template-columns:1fr 1fr}
  .jy-footer-brand{grid-column:1 / -1}
  .jy-footer-bottom{flex-direction:column;align-items:flex-start}
  .jy-shot{flex:0 0 76%}
}
@media (max-width:575.98px){
  .jy-container{padding:0 16px}
  .jy-hero-stats{grid-template-columns:1fr 1fr;gap:16px}
  .jy-hero-meta{font-size:13px}
  .jy-card{padding:22px}
  .jy-footer-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --jy-brand:#1A6BE0;
  --jy-brand-dark:#1355BE;
  --jy-brand-soft:#E8F0FD;
  --jy-accent:#FF7A29;
  --jy-accent-dark:#E86A1C;
  --jy-teal:#17B8A6;
  --jy-bg:#F6F9FD;
  --jy-surface:#FFFFFF;
  --jy-line:#E6EDF7;
  --jy-line-soft:#EEF3FA;
  --jy-text:#172335;
  --jy-text-2:#5B6B80;
  --jy-text-3:#8A99AD;
  --jy-night:#0D1B2E;
  --jy-night-2:#132845;
  --jy-r-card:16px;
  --jy-r-img:12px;
  --jy-r-btn:10px;
  --jy-shadow:0 2px 8px rgba(23,35,53,.04);
  --jy-shadow-hover:0 12px 32px rgba(20,80,170,.10);
  --jy-ease:cubic-bezier(.22,.61,.36,1);
  --jy-max:1200px;

  --bs-primary:#1A6BE0;
  --bs-primary-rgb:26,107,224;
  --bs-link-color:#1A6BE0;
  --bs-link-hover-color:#1355BE;
  --bs-body-color:#172335;
  --bs-border-color:#E6EDF7;
  --bs-border-radius:16px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.8;color:var(--jy-text);background:var(--jy-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--jy-brand);text-decoration:none;transition:color .25s var(--jy-ease)}
a:hover{color:var(--jy-brand-dark)}
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(--jy-brand);outline-offset:2px}
.jy-container{max-width:var(--jy-max);margin:0 auto;padding:0 20px}
.jy-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header ---------- */
.jy-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--jy-line);transition:box-shadow .25s var(--jy-ease)}
.jy-header.is-shrink{box-shadow:0 6px 22px rgba(20,80,170,.08)}
.jy-header-inner{display:flex;align-items:center;gap:36px;height:72px;transition:height .25s var(--jy-ease)}
.jy-header.is-shrink .jy-header-inner{height:64px}
.jy-logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.jy-logo-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(140deg,#2C7BF0,#1355BE);
  color:#fff;font-weight:700;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(26,107,224,.32);
}
.jy-logo-text{display:flex;flex-direction:column;line-height:1.15}
.jy-logo-text strong{font-size:17px;font-weight:700;color:var(--jy-text);letter-spacing:-.2px}
.jy-logo-text em{font-style:normal;font-size:12px;color:var(--jy-text-3);letter-spacing:.4px}
.jy-nav-menu{display:flex;align-items:center;gap:30px;margin-left:auto}
.jy-nav-menu a{position:relative;font-size:15px;font-weight:500;color:var(--jy-text-2);padding:6px 0}
.jy-nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--jy-brand);transform:scaleX(0);transform-origin:center;
  transition:transform .25s var(--jy-ease);
}
.jy-nav-menu a:hover,.jy-nav-menu a[aria-current="page"]{color:var(--jy-brand)}
.jy-nav-menu a:hover::after,.jy-nav-menu a[aria-current="page"]::after{transform:scaleX(1)}
.jy-header-actions{display:flex;align-items:center;gap:14px}
.jy-burger{
  display:none;width:44px;height:44px;border:1px solid var(--jy-line);border-radius:12px;
  background:#fff;align-items:center;justify-content:center;cursor:pointer;padding:0;
}
.jy-burger span{display:block;width:18px;height:2px;background:var(--jy-text);border-radius:2px;position:relative;transition:.25s var(--jy-ease)}
.jy-burger span::before,.jy-burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--jy-text);border-radius:2px;transition:.25s var(--jy-ease)}
.jy-burger span::before{top:-6px}
.jy-burger span::after{top:6px}
.jy-burger[aria-expanded="true"] span{background:transparent}
.jy-burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.jy-burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

/* ---------- buttons ---------- */
.jy-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--jy-r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .25s var(--jy-ease),color .25s var(--jy-ease),border-color .25s var(--jy-ease),transform .25s var(--jy-ease),box-shadow .25s var(--jy-ease);
}
.jy-btn-accent{background:var(--jy-accent);color:#fff;box-shadow:0 8px 20px rgba(255,122,41,.24)}
.jy-btn-accent:hover{background:var(--jy-accent-dark);color:#fff;transform:translateY(-1px)}
.jy-btn-primary{background:var(--jy-brand);color:#fff}
.jy-btn-primary:hover{background:var(--jy-brand-dark);color:#fff;transform:translateY(-1px)}
.jy-btn-ghost{background:#fff;border-color:#D6E2F3;color:var(--jy-brand)}
.jy-btn-ghost:hover{background:var(--jy-brand-soft);border-color:#BBD3F6;color:var(--jy-brand-dark)}
.jy-btn-sm{height:42px;padding:0 20px;font-size:14px}
.jy-link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600}
.jy-link-more svg{transition:transform .25s var(--jy-ease)}
.jy-link-more:hover svg{transform:translateX(3px)}

/* ---------- drawer ---------- */
.jy-mask{position:fixed;inset:0;background:rgba(13,27,46,.45);opacity:0;visibility:hidden;transition:.25s var(--jy-ease);z-index:1040}
.jy-mask.is-open{opacity:1;visibility:visible}
.jy-drawer{
  position:fixed;top:0;right:0;width:82vw;max-width:360px;height:100%;
  background:#fff;z-index:1050;transform:translateX(102%);
  transition:transform .3s var(--jy-ease);display:flex;flex-direction:column;
  padding:22px 22px 32px;overflow-y:auto;
}
.jy-drawer.is-open{transform:none}
.jy-drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--jy-line)}
.jy-drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--jy-line);background:#fff;cursor:pointer;color:var(--jy-text-2);font-size:18px;line-height:1}
.jy-drawer-group{padding:20px 0 4px}
.jy-drawer-group h3{font-size:12px;font-weight:600;letter-spacing:1px;color:var(--jy-text-3);margin-bottom:8px}
.jy-drawer-group a{display:block;padding:13px 0;font-size:16px;font-weight:500;color:var(--jy-text);border-bottom:1px solid var(--jy-line-soft)}
.jy-drawer-group a[aria-current="page"]{color:var(--jy-brand)}
.jy-drawer .jy-btn{width:100%;margin-top:22px}

/* ---------- breadcrumb head ---------- */
.jy-page-head{
  background:#fff;border-bottom:1px solid var(--jy-line);
  background-image:radial-gradient(680px 200px at 88% -40%,rgba(26,107,224,.10),transparent 70%);
}
.jy-page-head-inner{padding:18px 0}
.jy-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--jy-text-3)}
.jy-crumb a{color:var(--jy-text-2)}
.jy-crumb a:hover{color:var(--jy-brand)}
.jy-crumb .jy-crumb-sep{color:#C3D2E6}
.jy-crumb-current{color:var(--jy-brand);font-weight:600;max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article layout ---------- */
.jy-article-shell{
  display:grid;grid-template-columns:minmax(0,1fr);gap:36px;
  padding:40px 20px 0;max-width:var(--jy-max);margin:0 auto;align-items:start;
}
@media(min-width:1200px){
  .jy-article-shell{grid-template-columns:minmax(0,760px) 320px;gap:56px;justify-content:center}
}
.jy-article-main{min-width:0}
.jy-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--jy-brand-soft);color:var(--jy-brand);
  font-size:12px;font-weight:600;letter-spacing:.3px;
}
.jy-article-head{padding-bottom:8px}
.jy-article-head h1{
  font-size:clamp(26px,3.4vw,36px);line-height:1.35;font-weight:700;letter-spacing:-.2px;
  margin:16px 0 18px;color:var(--jy-text);
}
.jy-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--jy-text-3)}
.jy-meta .jy-dot{width:4px;height:4px;border-radius:50%;background:#C9D6E8;display:inline-block}
.jy-hero-figure{margin:26px 0 0;border-radius:var(--jy-r-img);overflow:hidden;border:1px solid var(--jy-line);background:var(--jy-line-soft)}
.jy-hero-figure img{width:100%;aspect-ratio:16/8.6;object-fit:cover}

/* ---------- article content ---------- */
.jy-article-content{
  margin-top:30px;background:#fff;border:1px solid var(--jy-line);border-radius:var(--jy-r-card);
  padding:34px 32px 38px;box-shadow:var(--jy-shadow);
  font-size:17px;line-height:1.9;color:#28374B;
}
.jy-article-content > *:first-child{margin-top:0}
.jy-article-content p{margin:0 0 1.2em}
.jy-article-content h2{
  position:relative;font-size:24px;font-weight:700;color:var(--jy-text);letter-spacing:-.2px;
  margin:40px 0 16px;padding-left:16px;line-height:1.45;
}
.jy-article-content h2::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:1.05em;border-radius:3px;background:var(--jy-brand);
}
.jy-article-content h3{font-size:19px;font-weight:700;color:var(--jy-brand-dark);margin:28px 0 12px}
.jy-article-content ul,.jy-article-content ol{margin:0 0 1.2em;padding-left:1.2em}
.jy-article-content ul li,.jy-article-content ol li{margin:.5em 0;position:relative}
.jy-article-content ul li::marker,.jy-article-content ol li::marker{color:var(--jy-brand);font-weight:700}
.jy-article-content ul li{list-style:disc}
.jy-article-content ol li{list-style:decimal}
.jy-article-content blockquote{
  margin:24px 0;padding:16px 22px;border-left:4px solid var(--jy-brand);
  background:var(--jy-brand-soft);border-radius:0 12px 12px 0;color:var(--jy-text-2);font-size:16px;
}
.jy-article-content img{
  border-radius:var(--jy-r-img);border:1px solid var(--jy-line);margin:24px auto;
}
.jy-article-content figure{margin:24px 0}
.jy-article-content figcaption{text-align:center;font-size:13px;color:var(--jy-text-3);margin-top:10px}
.jy-article-content table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;background:#fff;
  border:1px solid var(--jy-line);border-radius:12px;overflow:hidden;display:block;overflow-x:auto;
}
.jy-article-content thead th{background:var(--jy-brand-soft);color:var(--jy-brand-dark);font-weight:600}
.jy-article-content th,.jy-article-content td{padding:12px 14px;border-bottom:1px solid var(--jy-line);text-align:left;white-space:nowrap}
.jy-article-content tbody tr:nth-child(even){background:#FAFCFF}
.jy-article-content code{background:var(--jy-line-soft);padding:2px 6px;border-radius:6px;font-size:15px;color:var(--jy-brand-dark)}
.jy-article-content strong{color:var(--jy-text)}

/* empty state */
.jy-empty{
  text-align:center;padding:56px 20px;border:1px dashed #D6E2F3;border-radius:var(--jy-r-card);
  background:#fff;margin-top:30px;
}
.jy-empty-icon{
  width:64px;height:64px;border-radius:18px;background:var(--jy-line-soft);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;color:var(--jy-text-3);
}
.jy-empty h2{font-size:20px;font-weight:700;margin-bottom:8px}
.jy-empty p{font-size:15px;color:var(--jy-text-2);margin-bottom:22px}

/* tags + share */
.jy-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.jy-tag{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--jy-line);font-size:13px;color:var(--jy-text-2);
  transition:all .25s var(--jy-ease);
}
.jy-tag:hover{border-color:#BBD3F6;background:var(--jy-brand-soft);color:var(--jy-brand)}
.jy-share{display:flex;align-items:center;gap:12px;margin-top:22px;padding-top:22px;border-top:1px dashed var(--jy-line)}
.jy-share-label{font-size:14px;color:var(--jy-text-3)}
.jy-share-btn{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--jy-line);background:#fff;
  color:var(--jy-text-2);font-size:13px;font-weight:600;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;transition:all .25s var(--jy-ease);
}
.jy-share-btn:hover{border-color:var(--jy-brand);color:var(--jy-brand);background:var(--jy-brand-soft);transform:translateY(-2px)}
.jy-share-btn.is-done{border-color:var(--jy-teal);color:var(--jy-teal);background:#E8F8F6}
.jy-share-copy{width:auto;border-radius:999px;padding:0 18px}

/* post nav */
.jy-postnav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.jy-postnav a{
  display:block;background:#fff;border:1px solid var(--jy-line);border-radius:var(--jy-r-card);
  padding:18px 20px;box-shadow:var(--jy-shadow);transition:all .25s var(--jy-ease);
}
.jy-postnav a:hover{border-color:#BBD3F6;box-shadow:var(--jy-shadow-hover);transform:translateY(-3px)}
.jy-postnav span{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--jy-text-3);margin-bottom:8px}
.jy-postnav strong{display:block;font-size:15px;font-weight:600;color:var(--jy-text);line-height:1.6;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.jy-postnav a:hover strong{color:var(--jy-brand)}
.jy-postnav .jy-next{text-align:right}
.jy-postnav .jy-next span{justify-content:flex-end}

/* related */
.jy-related{margin-top:52px}
.jy-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px}
.jy-section-head h2{font-size:22px;font-weight:700;letter-spacing:-.2px}
.jy-section-head p{font-size:14px;color:var(--jy-text-3);margin-top:6px}
.jy-related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.jy-card{
  background:#fff;border:1px solid var(--jy-line);border-radius:var(--jy-r-card);overflow:hidden;
  box-shadow:var(--jy-shadow);transition:transform .25s var(--jy-ease),box-shadow .25s var(--jy-ease),border-color .25s var(--jy-ease);
  display:flex;flex-direction:column;height:100%;
}
.jy-card:hover{transform:translateY(-4px);box-shadow:var(--jy-shadow-hover);border-color:#CFE0F7}
.jy-card-cover{aspect-ratio:16/10;overflow:hidden;background:var(--jy-line-soft);border-bottom:1px solid var(--jy-line)}
.jy-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--jy-ease)}
.jy-card:hover .jy-card-cover img{transform:scale(1.04)}
.jy-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.jy-card-body h3{font-size:16px;font-weight:600;line-height:1.6;color:var(--jy-text)}
.jy-card:hover h3{color:var(--jy-brand)}
.jy-card-body p{font-size:14px;line-height:1.7;color:var(--jy-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.jy-card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--jy-text-3);border-top:1px solid var(--jy-line-soft);padding-top:12px}

.jy-back-wrap{margin:34px 0 0}
.jy-back-row{display:flex;justify-content:center}

/* ---------- sidebar ---------- */
.jy-article-side{min-width:0}
.jy-side-sticky{display:flex;flex-direction:column;gap:20px}
@media(min-width:1200px){.jy-side-sticky{position:sticky;top:96px}}
.jy-side-card{background:#fff;border:1px solid var(--jy-line);border-radius:var(--jy-r-card);padding:22px;box-shadow:var(--jy-shadow)}
.jy-side-card h2{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.jy-side-card h2::before{content:"";width:4px;height:15px;border-radius:3px;background:var(--jy-accent)}
.jy-toc-list a{
  display:block;padding:9px 12px;font-size:14px;color:var(--jy-text-2);
  border-left:2px solid var(--jy-line);line-height:1.55;
  transition:all .25s var(--jy-ease);
}
.jy-toc-list a:hover{color:var(--jy-brand);border-left-color:#BBD3F6;background:#F8FBFF}
.jy-toc-list a.is-active{color:var(--jy-brand);border-left-color:var(--jy-brand);background:var(--jy-brand-soft);font-weight:600}
.jy-toc-empty{font-size:14px;color:var(--jy-text-3);padding:9px 12px;border-left:2px solid var(--jy-line)}
.jy-hot-list li{border-bottom:1px dashed var(--jy-line)}
.jy-hot-list li:last-child{border-bottom:0}
.jy-hot-list a{display:flex;gap:10px;padding:11px 0;font-size:14px;color:var(--jy-text-2);line-height:1.6}
.jy-hot-list a:hover{color:var(--jy-brand)}
.jy-hot-num{font-weight:700;color:var(--jy-accent);flex-shrink:0;font-size:15px}
.jy-hot-list li:nth-child(n+4) .jy-hot-num{color:#B9C7DA}
.jy-dl-card{background:var(--jy-night);border-color:var(--jy-night-2);color:#fff}
.jy-dl-card h2{color:#fff}
.jy-dl-card h2::before{background:var(--jy-accent)}
.jy-dl-card p{font-size:13px;color:#A9BDD8;line-height:1.7;margin-bottom:14px}
.jy-qr{width:112px;height:112px;background:#fff;border-radius:12px;padding:8px;margin-bottom:14px}
.jy-qr svg{width:100%;height:100%;display:block}
.jy-dl-card .jy-btn{width:100%}

/* ---------- dark CTA ---------- */
.jy-cta-band{
  position:relative;overflow:hidden;margin-top:80px;padding:76px 0;
  background:var(--jy-night);color:#fff;
}
.jy-cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(520px 320px at 82% 12%,rgba(26,107,224,.50),transparent 68%),
    radial-gradient(420px 260px at 6% 92%,rgba(23,184,166,.20),transparent 70%);
}
.jy-cta-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.jy-cta-inner h2{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.35;letter-spacing:-.2px;margin-bottom:14px}
.jy-cta-inner p{font-size:15px;line-height:1.85;color:#A9BDD8;max-width:560px}
.jy-cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.jy-cta-actions .jy-btn-ghost{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.jy-cta-actions .jy-btn-ghost:hover{background:rgba(255,255,255,.10);border-color:#fff;color:#fff}
.jy-cta-panel{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--jy-r-card);padding:24px;backdrop-filter:blur(2px);
}
.jy-cta-panel h3{font-size:15px;font-weight:600;margin-bottom:14px;color:#fff}
.jy-cta-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.10);font-size:14px;color:#C7D6EA}
.jy-cta-list li:last-child{border-bottom:0}
.jy-cta-list b{color:#fff;font-weight:600}
.jy-status{display:inline-flex;align-items:center;gap:6px;color:var(--jy-teal);font-size:13px}
.jy-status::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--jy-teal);box-shadow:0 0 0 4px rgba(23,184,166,.18)}

/* ---------- footer ---------- */
.jy-footer{background:#F1F6FC;border-top:1px solid var(--jy-line);padding:56px 0 0;margin-top:0}
.jy-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.jy-footer-brand p{font-size:14px;line-height:1.85;color:var(--jy-text-2);margin-top:16px;max-width:360px}
.jy-footer-tags{font-size:13px;color:var(--jy-text-3)}
.jy-footer-col h3{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--jy-text)}
.jy-footer-col a{display:block;font-size:14px;color:var(--jy-text-2);padding:6px 0}
.jy-footer-col a:hover{color:var(--jy-brand)}
.jy-qr-mini{width:104px;height:104px;background:#fff;border:1px solid var(--jy-line);border-radius:12px;padding:8px;margin-bottom:12px}
.jy-qr-mini svg{width:100%;height:100%;display:block}
.jy-footer-note{font-size:13px;color:var(--jy-text-3);line-height:1.7}
.jy-footer-bottom{
  margin-top:42px;border-top:1px solid var(--jy-line);padding:18px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--jy-text-3);
}
.jy-footer-bottom a{color:var(--jy-text-3)}
.jy-footer-bottom a:hover{color:var(--jy-brand)}

/* ---------- mobile bar ---------- */
.jy-mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1020;
  background:rgba(255,255,255,.96);border-top:1px solid var(--jy-line);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  box-shadow:0 -6px 20px rgba(20,80,170,.08);
}
.jy-mobile-bar .jy-btn{width:100%}

/* ---------- responsive ---------- */
@media(max-width:1199px){
  .jy-article-shell{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:32px}
}
@media(max-width:991px){
  .jy-nav-menu{display:none}
  .jy-header-actions .jy-btn{display:none}
  .jy-burger{display:inline-flex}
  .jy-header-inner{gap:16px;height:64px;justify-content:space-between}
  .jy-header.is-shrink .jy-header-inner{height:60px}
  .jy-related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .jy-cta-inner{grid-template-columns:minmax(0,1fr);gap:30px}
  .jy-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .jy-footer-brand{grid-column:1 / -1}
  .jy-cta-band{padding:60px 0}
}
@media(max-width:767px){
  body{padding-bottom:74px}
  .jy-mobile-bar{display:block}
  .jy-article-content{padding:26px 20px 30px;font-size:16px}
  .jy-article-content h2{font-size:20px;margin:32px 0 14px}
  .jy-article-content h3{font-size:17px;margin:24px 0 10px}
  .jy-postnav{grid-template-columns:minmax(0,1fr)}
  .jy-postnav .jy-next{text-align:left}
  .jy-postnav .jy-next span{justify-content:flex-start}
  .jy-related-grid{grid-template-columns:minmax(0,1fr)}
  .jy-crumb-current{max-width:100%;white-space:normal}
  .jy-cta-band{margin-top:56px;padding:52px 0}
  .jy-cta-actions .jy-btn{width:100%}
  .jy-section-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media(max-width:575px){
  .jy-container{padding:0 16px}
  .jy-article-shell{padding:24px 16px 0}
  .jy-logo-text em{display:none}
  .jy-footer-grid{grid-template-columns:minmax(0,1fr)}
  .jy-footer-bottom{flex-direction:column}
  .jy-share{flex-wrap:wrap}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --jy-brand:#1A6BE0;
  --jy-brand-dark:#1355BE;
  --jy-brand-soft:#E8F0FD;
  --jy-accent:#FF7A29;
  --jy-accent-dark:#E86A1C;
  --jy-teal:#17B8A6;
  --jy-bg:#F6F9FD;
  --jy-surface:#FFFFFF;
  --jy-line:#E6EDF7;
  --jy-line-soft:#EEF3FA;
  --jy-text:#172335;
  --jy-text-2:#5B6B80;
  --jy-text-3:#8A99AD;
  --jy-ink:#0D1B2E;
  --jy-footer-bg:#F1F6FC;
  --jy-radius-card:16px;
  --jy-radius-img:12px;
  --jy-radius-btn:10px;
  --jy-shadow-1:0 2px 8px rgba(23,35,53,.04);
  --jy-shadow-2:0 12px 32px rgba(20,80,170,.10);
  --jy-ease:.25s cubic-bezier(.22,.61,.36,1);
  --jy-max:1200px;

  --bs-primary:#1A6BE0;
  --bs-primary-rgb:26,107,224;
  --bs-link-color:#1A6BE0;
  --bs-link-hover-color:#1355BE;
  --bs-body-color:#172335;
  --bs-body-bg:#F6F9FD;
  --bs-border-color:#E6EDF7;
  --bs-border-radius:10px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--jy-text);
  background:var(--jy-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--jy-brand);text-decoration:none;transition:color var(--jy-ease),background var(--jy-ease),border-color var(--jy-ease);}
a:hover{color:var(--jy-brand-dark);}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,.jy-btn:focus-visible,input:focus-visible{
  outline:2px solid var(--jy-brand);outline-offset:2px;border-radius:6px;
}
.jy-container{width:100%;max-width:var(--jy-max);margin:0 auto;padding:0 20px;}
.jy-container-wide{max-width:1320px;}

/* ---------- 导航 ---------- */
.jy-header{
  position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--jy-line);
  transition:box-shadow var(--jy-ease);
}
.jy-header.is-stuck{box-shadow:0 10px 26px rgba(20,80,170,.08);}
.jy-header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height var(--jy-ease);}
.jy-header.is-stuck .jy-header-inner{height:64px;}
.jy-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.jy-logo-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:var(--jy-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;letter-spacing:0;
  box-shadow:0 6px 16px rgba(26,107,224,.28);
}
.jy-logo-text{display:flex;flex-direction:column;line-height:1.2;}
.jy-logo-text strong{font-size:17px;font-weight:700;color:var(--jy-text);letter-spacing:-.2px;}
.jy-logo-text em{font-style:normal;font-size:11px;color:var(--jy-text-3);letter-spacing:.04em;}
.jy-nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.jy-nav-menu a{
  position:relative;padding:9px 14px;font-size:15px;font-weight:500;color:var(--jy-text-2);border-radius:8px;
}
.jy-nav-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:transparent;transition:background var(--jy-ease);
}
.jy-nav-menu a:hover{color:var(--jy-brand);background:var(--jy-brand-soft);}
.jy-nav-menu a:hover::after{background:var(--jy-brand);}
.jy-nav-menu a[aria-current="page"]{color:var(--jy-brand);font-weight:600;background:var(--jy-brand-soft);}
.jy-nav-menu a[aria-current="page"]::after{background:var(--jy-brand);}
.jy-header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.jy-burger{
  display:none;width:44px;height:44px;border:1px solid var(--jy-line);background:#fff;border-radius:10px;
  padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;transition:var(--jy-ease);
}
.jy-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--jy-text);transition:var(--jy-ease);}
.jy-burger.is-on span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.jy-burger.is-on span:nth-child(2){opacity:0;}
.jy-burger.is-on span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.jy-burger:hover{border-color:var(--jy-brand);background:var(--jy-brand-soft);}

/* 抽屉 */
.jy-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;background:#fff;z-index:1060;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;box-shadow:-18px 0 40px rgba(13,27,46,.14);
}
.jy-drawer.is-open{transform:translateX(0);}
.jy-drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.jy-drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--jy-line);background:#fff;color:var(--jy-text-2);
  font-size:20px;line-height:1;cursor:pointer;transition:var(--jy-ease);
}
.jy-drawer-close:hover{border-color:var(--jy-brand);color:var(--jy-brand);}
.jy-drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px;}
.jy-drawer-nav a{padding:13px 14px;border-radius:10px;font-size:16px;font-weight:500;color:var(--jy-text);}
.jy-drawer-nav a:hover{background:var(--jy-brand-soft);color:var(--jy-brand);}
.jy-drawer-nav a[aria-current="page"]{background:var(--jy-brand-soft);color:var(--jy-brand);font-weight:600;}
.jy-drawer-foot{margin-top:auto;font-size:13px;color:var(--jy-text-3);line-height:1.7;}
.jy-mask{
  position:fixed;inset:0;background:rgba(13,27,46,.42);z-index:1050;opacity:0;visibility:hidden;
  transition:opacity var(--jy-ease),visibility var(--jy-ease);
}
.jy-mask.is-on{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.jy-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;
  border-radius:var(--jy-radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform var(--jy-ease),background var(--jy-ease),box-shadow var(--jy-ease),color var(--jy-ease),border-color var(--jy-ease);
  white-space:nowrap;
}
.jy-btn-sm{height:40px;padding:0 18px;font-size:14px;}
.jy-btn-block{width:100%;}
.jy-btn-accent{background:var(--jy-accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,41,.24);}
.jy-btn-accent:hover{background:var(--jy-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,122,41,.32);}
.jy-btn-accent:active{transform:translateY(0);box-shadow:0 4px 12px rgba(255,122,41,.22);}
.jy-btn-ghost{background:#fff;color:var(--jy-brand);border-color:var(--jy-brand);}
.jy-btn-ghost:hover{background:var(--jy-brand-soft);color:var(--jy-brand-dark);border-color:var(--jy-brand-dark);}
.jy-btn-light{background:#fff;color:var(--jy-brand);}
.jy-btn-light:hover{background:var(--jy-brand-soft);color:var(--jy-brand-dark);}
.jy-btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.jy-btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}

/* ---------- Hero ---------- */
.jy-cat-hero{position:relative;overflow:hidden;background:var(--jy-brand-soft);}
.jy-cat-hero::after{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:right center;background-repeat:no-repeat;opacity:.22;
}
.jy-cat-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,rgba(232,240,253,.99) 0%,rgba(232,240,253,.94) 42%,rgba(232,240,253,.5) 100%);
}
.jy-cat-hero-inner{position:relative;z-index:2;padding:40px 20px 60px;}
.jy-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--jy-text-3);margin-bottom:20px;}
.jy-breadcrumb a{color:var(--jy-text-3);}
.jy-breadcrumb a:hover{color:var(--jy-brand);}
.jy-breadcrumb span{color:#B9C6D6;}
.jy-breadcrumb em{font-style:normal;color:var(--jy-brand);}
.jy-cat-hero h1{
  font-size:clamp(30px,4.4vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.2px;
  max-width:760px;margin-bottom:16px;
}
.jy-hero-sub{font-size:clamp(16px,1.6vw,18px);color:var(--jy-text-2);max-width:660px;line-height:1.85;}
.jy-hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px;font-size:14px;color:var(--jy-text-3);}
.jy-hero-meta span{display:inline-flex;align-items:center;gap:10px;}
.jy-hero-meta span+span::before{content:"";width:1px;height:12px;background:#C6D4E6;display:inline-block;margin-right:10px;}
.jy-hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}

/* 分类胶囊 */
.jy-cat-tabs-bar{background:#fff;border-bottom:1px solid var(--jy-line);}
.jy-cat-tabs{display:flex;gap:10px;overflow-x:auto;padding-top:14px;padding-bottom:14px;-webkit-overflow-scrolling:touch;}
.jy-cat-tabs a{
  flex:0 0 auto;padding:8px 18px;border-radius:999px;border:1px solid var(--jy-line);
  font-size:14px;font-weight:500;color:var(--jy-text-2);background:#fff;
}
.jy-cat-tabs a:hover{border-color:var(--jy-brand);color:var(--jy-brand);background:var(--jy-brand-soft);}
.jy-cat-tabs a.is-active{background:var(--jy-brand);border-color:var(--jy-brand);color:#fff;box-shadow:0 6px 16px rgba(26,107,224,.22);}

/* ---------- 主体布局 ---------- */
.jy-main{padding:48px 0 72px;}
.jy-cat-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:40px;align-items:start;}

/* 目录 */
.jy-toc{
  position:sticky;top:96px;background:#fff;border:1px solid var(--jy-line);border-radius:var(--jy-radius-card);
  padding:20px;box-shadow:var(--jy-shadow-1);
}
.jy-toc-title{font-size:12px;letter-spacing:.12em;color:var(--jy-text-3);font-weight:600;margin-bottom:12px;}
.jy-toc-list{display:flex;flex-direction:column;gap:2px;}
.jy-toc-list a{
  position:relative;display:block;padding:9px 10px 9px 15px;font-size:14px;color:var(--jy-text-2);border-radius:8px;
  transition:var(--jy-ease);
}
.jy-toc-list a::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;
  background:transparent;transition:var(--jy-ease);
}
.jy-toc-list a:hover{background:var(--jy-brand-soft);color:var(--jy-brand);}
.jy-toc-list a.is-active{background:var(--jy-brand-soft);color:var(--jy-brand);font-weight:600;}
.jy-toc-list a.is-active::before{background:var(--jy-brand);}
.jy-toc-card{margin-top:20px;padding-top:20px;border-top:1px solid var(--jy-line-soft);}
.jy-toc-card-t{font-size:14px;font-weight:600;margin-bottom:6px;}
.jy-toc-card-d{font-size:13px;color:var(--jy-text-3);line-height:1.7;margin-bottom:14px;}

/* 内容流 */
.jy-lead{
  font-size:16.5px;line-height:1.95;color:var(--jy-text-2);background:#fff;border:1px solid var(--jy-line);
  border-left:4px solid var(--jy-brand);border-radius:14px;padding:22px 24px;margin-bottom:28px;
}
.jy-sec-head{margin:0 0 24px;}
.jy-sec-head h2{font-size:clamp(24px,3vw,30px);font-weight:700;letter-spacing:-.2px;}
.jy-sec-head p{margin-top:10px;color:var(--jy-text-2);font-size:15px;}
.jy-step{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:34px;align-items:center;
  background:#fff;border:1px solid var(--jy-line);border-radius:var(--jy-radius-card);
  padding:30px;margin-bottom:22px;box-shadow:var(--jy-shadow-1);transition:box-shadow var(--jy-ease),transform var(--jy-ease);
}
.jy-step:hover{box-shadow:var(--jy-shadow-2);}
.jy-step-media{
  border-radius:var(--jy-radius-img);overflow:hidden;border:1px solid var(--jy-line);
  aspect-ratio:16/10;background:var(--jy-line-soft);
}
.jy-step-media img{width:100%;height:100%;object-fit:cover;}
.jy-step--rev .jy-step-media{order:2;}
.jy-step h2{
  display:flex;align-items:baseline;gap:10px;font-size:clamp(19px,2vw,21px);font-weight:600;
  line-height:1.45;letter-spacing:-.2px;margin-bottom:14px;
}
.jy-step h2 .jy-num{color:var(--jy-accent);font-size:14px;font-weight:700;letter-spacing:.06em;flex:0 0 auto;}
.jy-step p{font-size:15.5px;line-height:1.9;color:var(--jy-text-2);margin-bottom:12px;}
.jy-step p:last-child{margin-bottom:0;}

/* 要点卡 */
.jy-points{margin:28px 0 34px;}
.jy-point{
  height:100%;background:#fff;border:1px solid var(--jy-line);border-radius:14px;padding:24px;
  box-shadow:var(--jy-shadow-1);transition:transform var(--jy-ease),box-shadow var(--jy-ease);
}
.jy-point:hover{transform:translateY(-4px);box-shadow:var(--jy-shadow-2);}
.jy-point-icon{
  width:44px;height:44px;border-radius:12px;background:var(--jy-brand-soft);color:var(--jy-brand);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.jy-point-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.jy-point h3{font-size:16px;font-weight:600;margin-bottom:8px;}
.jy-point p{font-size:14px;line-height:1.8;color:var(--jy-text-2);}

/* FAQ */
.jy-faq-list{margin-top:4px;}
.jy-faq-item{
  position:relative;background:#fff;border:1px solid var(--jy-line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:box-shadow var(--jy-ease),border-color var(--jy-ease);
}
.jy-faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:var(--jy-ease);z-index:1;
}
.jy-faq-item.is-open{border-color:#CFE0F8;box-shadow:var(--jy-shadow-1);}
.jy-faq-item.is-open::before{background:var(--jy-brand);}
.jy-faq-h{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;}
.jy-faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:0;text-align:left;font-size:16px;font-weight:600;
  color:var(--jy-text);cursor:pointer;transition:color var(--jy-ease);
}
.jy-faq-btn:hover{color:var(--jy-brand);}
.jy-faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;}
.jy-faq-icon::before,.jy-faq-icon::after{
  content:"";position:absolute;background:var(--jy-text-3);border-radius:2px;transition:var(--jy-ease);
}
.jy-faq-icon::before{left:0;right:0;top:7px;height:2px;}
.jy-faq-icon::after{top:0;bottom:0;left:7px;width:2px;}
.jy-faq-btn[aria-expanded="true"] .jy-faq-icon::before{background:var(--jy-brand);}
.jy-faq-btn[aria-expanded="true"] .jy-faq-icon::after{transform:scaleY(0);}
.jy-faq-body{padding:0 20px 20px;font-size:15px;line-height:1.9;color:var(--jy-text-2);}

/* CTA 条 */
.jy-cta{
  position:relative;overflow:hidden;background:var(--jy-ink);border-radius:20px;padding:40px 36px;
  color:#fff;margin-top:34px;
}
.jy-cta::after{
  content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,41,.36),rgba(255,122,41,0) 70%);
}
.jy-cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;gap:28px;justify-content:space-between;}
.jy-cta-text{max-width:560px;}
.jy-cta-text h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.35;margin-bottom:12px;}
.jy-cta-text p{font-size:15px;color:#B7C6DA;line-height:1.85;}
.jy-cta-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.jy-cta-qr{
  flex:0 0 auto;background:#fff;border-radius:14px;padding:14px 14px 10px;text-align:center;
  box-shadow:0 12px 32px rgba(0,0,0,.24);
}
.jy-cta-qr svg{width:104px;height:104px;display:block;margin:0 auto;}
.jy-cta-qr p{font-size:12px;color:var(--jy-text-2);margin-top:8px;}

/* ---------- 页脚 ---------- */
.jy-footer{background:var(--jy-footer-bg);border-top:1px solid var(--jy-line);margin-top:0;}
.jy-footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:36px;padding:56px 0 40px;
}
.jy-footer-brand .jy-logo{margin-bottom:16px;}
.jy-footer-brand p{font-size:14px;color:var(--jy-text-2);line-height:1.85;max-width:360px;margin-bottom:12px;}
.jy-footer-tags{font-size:13px;color:var(--jy-text-3);letter-spacing:.02em;}
.jy-footer-col h3{font-size:14px;font-weight:600;color:var(--jy-text);margin-bottom:16px;}
.jy-footer-col a{display:block;font-size:14px;color:var(--jy-text-2);padding:5px 0;}
.jy-footer-col a:hover{color:var(--jy-brand);}
.jy-qr-mini{background:#fff;border:1px solid var(--jy-line);border-radius:12px;padding:10px;width:112px;}
.jy-qr-mini svg{width:100%;height:auto;display:block;}
.jy-footer-qr-note{font-size:13px;color:var(--jy-text-3);margin-top:12px;line-height:1.7;}
.jy-footer-bottom{
  border-top:1px solid var(--jy-line);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px 22px;
  align-items:center;justify-content:space-between;font-size:13px;color:var(--jy-text-3);
}
.jy-footer-bottom p{margin:0;}

/* 移动底栏 */
.jy-mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1020;background:#fff;
  border-top:1px solid var(--jy-line);padding:10px 16px;align-items:center;gap:14px;
  box-shadow:0 -8px 24px rgba(20,80,170,.08);
}
.jy-mobile-bar-t{display:flex;flex-direction:column;line-height:1.3;min-width:0;}
.jy-mobile-bar-t strong{font-size:14px;font-weight:600;}
.jy-mobile-bar-t span{font-size:11px;color:var(--jy-text-3);}

/* 入场 */
.jy-reveal{opacity:0;transform:translateY(12px);transition:opacity .45s ease,transform .45s cubic-bezier(.22,.61,.36,1);}
.jy-reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .jy-footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
}
@media (max-width:991.98px){
  .jy-nav-menu{display:none;}
  .jy-header-actions .jy-btn{display:none;}
  .jy-burger{display:flex;}
  .jy-header-inner{height:60px;gap:16px;}
  .jy-header.is-stuck .jy-header-inner{height:58px;}
  .jy-mobile-bar{display:flex;}
  body{padding-bottom:68px;}
  .jy-cat-hero-inner{padding:32px 20px 48px;}
  .jy-cat-layout{grid-template-columns:1fr;gap:24px;}
  .jy-toc{position:static;padding:14px;border-radius:14px;}
  .jy-toc-title{display:none;}
  .jy-toc-list{flex-direction:row;gap:8px;overflow-x:auto;padding-bottom:4px;}
  .jy-toc-list a{white-space:nowrap;border:1px solid var(--jy-line);border-radius:999px;padding:8px 14px;font-size:13px;}
  .jy-toc-list a::before{display:none;}
  .jy-toc-card{display:none;}
  .jy-step{grid-template-columns:1fr;gap:20px;padding:22px;}
  .jy-step--rev .jy-step-media{order:0;}
  .jy-main{padding:36px 0 56px;}
  .jy-cta{padding:32px 24px;}
  .jy-footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 32px;}
  .jy-footer-brand{grid-column:1 / -1;}
}
@media (max-width:575.98px){
  .jy-hero-btns .jy-btn{width:100%;}
  .jy-hero-meta{font-size:13px;}
  .jy-hero-meta span+span::before{margin-right:8px;}
  .jy-hero-meta{flex-direction:column;align-items:flex-start;gap:6px;}
  .jy-hero-meta span+span::before{display:none;}
  .jy-cta-inner{flex-direction:column;align-items:flex-start;}
  .jy-cta-btns{width:100%;}
  .jy-cta-btns .jy-btn{width:100%;}
  .jy-footer-grid{grid-template-columns:1fr;gap:24px;}
  .jy-footer-bottom{flex-direction:column;align-items:flex-start;}
  .jy-point{padding:20px;}
  .jy-lead{padding:18px 18px;font-size:15.5px;}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  .jy-reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
/* ===================== 设计变量 ===================== */
:root{
  --jy-brand:#1A6BE0;
  --jy-brand-dark:#1355BE;
  --jy-brand-soft:#E8F0FD;
  --jy-accent:#FF7A29;
  --jy-accent-dark:#E86A1C;
  --jy-teal:#17B8A6;
  --jy-bg:#F6F9FD;
  --jy-surface:#FFFFFF;
  --jy-line:#E6EDF7;
  --jy-line-soft:#EEF3FA;
  --jy-text:#172335;
  --jy-text-2:#5B6B80;
  --jy-text-3:#8A99AD;
  --jy-night:#0D1B2E;
  --jy-foot:#F1F6FC;
  --jy-r-card:16px;
  --jy-r-img:12px;
  --jy-r-btn:10px;
  --jy-r-pill:999px;
  --jy-sh-1:0 2px 8px rgba(23,35,53,.04);
  --jy-sh-2:0 12px 32px rgba(20,80,170,.10);
  --jy-ease:cubic-bezier(.22,.61,.36,1);
  --jy-hd:72px;

  --bs-body-color:var(--jy-text-2);
  --bs-body-bg:var(--jy-bg);
  --bs-border-color:var(--jy-line);
  --bs-link-color:var(--jy-brand);
  --bs-link-hover-color:var(--jy-brand-dark);
  --bs-border-radius:12px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.8;
  color:var(--jy-text-2);
  background:var(--jy-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--jy-text);letter-spacing:-.2px;line-height:1.3;}
p{margin:0;}
a{color:var(--jy-brand);text-decoration:none;transition:color .25s var(--jy-ease);}
a:hover{color:var(--jy-brand-dark);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--jy-brand);outline-offset:2px;border-radius:6px;
}

/* ===================== 容器与通用 ===================== */
.jy-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.jy-wide{max-width:1320px;}
.jy-section{padding:88px 0;}
.jy-section-sm{padding:56px 0;}
.jy-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.jy-sec-head h2{font-size:clamp(24px,3vw,32px);font-weight:700;}
.jy-sec-head p{margin-top:10px;font-size:15px;color:var(--jy-text-2);max-width:620px;}
.jy-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:500;color:var(--jy-brand);
  background:var(--jy-brand-soft);border-radius:var(--jy-r-pill);
  padding:6px 14px;margin-bottom:14px;letter-spacing:0;
}
.jy-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--jy-teal);}

/* ===================== 按钮 ===================== */
.jy-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--jy-r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .25s var(--jy-ease);white-space:nowrap;
}
.jy-btn-accent{background:var(--jy-accent);color:#fff;box-shadow:0 6px 18px rgba(255,122,41,.24);}
.jy-btn-accent:hover,.jy-btn-accent:active{background:var(--jy-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(232,106,28,.28);}
.jy-btn-outline{background:#fff;color:var(--jy-brand);border-color:var(--jy-brand);}
.jy-btn-outline:hover{background:var(--jy-brand-soft);color:var(--jy-brand-dark);border-color:var(--jy-brand-dark);transform:translateY(-1px);}
.jy-btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.jy-btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.jy-btn-sm{height:42px;padding:0 22px;font-size:14px;}
.jy-btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--jy-brand);}
.jy-btn-text span{transition:transform .25s var(--jy-ease);}
.jy-btn-text:hover span{transform:translateX(2px);}

/* ===================== 头部导航 ===================== */
.jy-header{
  position:sticky;top:0;z-index:1040;background:#fff;
  border-bottom:1px solid var(--jy-line);
  transition:box-shadow .25s var(--jy-ease);
}
.jy-header.is-scrolled{box-shadow:0 8px 24px rgba(20,80,170,.08);}
.jy-header-inner{display:flex;align-items:center;gap:20px;height:var(--jy-hd);transition:height .25s var(--jy-ease);}
.jy-header.is-scrolled .jy-header-inner{height:64px;}
.jy-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.jy-logo-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:var(--jy-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;
  box-shadow:0 6px 16px rgba(26,107,224,.28);
}
.jy-logo-text{display:flex;flex-direction:column;line-height:1.2;}
.jy-logo-text strong{font-size:17px;font-weight:700;color:var(--jy-text);letter-spacing:-.2px;}
.jy-logo-text em{font-style:normal;font-size:12px;color:var(--jy-text-3);letter-spacing:.4px;}
.jy-nav-menu{display:flex;align-items:center;gap:4px;margin:0 auto;}
.jy-nav-menu a{
  position:relative;padding:9px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--jy-text-2);
}
.jy-nav-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--jy-brand);
  transform:scaleX(0);transform-origin:center;transition:transform .25s var(--jy-ease);
}
.jy-nav-menu a:hover{color:var(--jy-brand);background:var(--jy-brand-soft);}
.jy-nav-menu a:hover::after{transform:scaleX(1);}
.jy-nav-menu a[aria-current="page"]{color:var(--jy-brand);font-weight:600;}
.jy-nav-menu a[aria-current="page"]::after{transform:scaleX(1);}
.jy-header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.jy-burger{
  display:none;width:44px;height:44px;border:1px solid var(--jy-line);border-radius:12px;
  background:#fff;padding:0;cursor:pointer;position:relative;
}
.jy-burger span{
  position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:var(--jy-text);
  transition:transform .25s var(--jy-ease),opacity .2s var(--jy-ease);
}
.jy-burger span:nth-child(1){top:15px;}
.jy-burger span:nth-child(2){top:21px;}
.jy-burger span:nth-child(3){top:27px;}
.jy-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.jy-burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.jy-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 抽屉 */
.jy-scrim{position:fixed;inset:0;background:rgba(23,35,53,.42);z-index:1050;opacity:0;transition:opacity .25s var(--jy-ease);}
.jy-scrim.is-on{opacity:1;}
.jy-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:1060;
  background:#fff;box-shadow:-12px 0 40px rgba(20,80,170,.14);
  transform:translateX(102%);transition:transform .3s var(--jy-ease);
  display:flex;flex-direction:column;padding:20px;gap:22px;overflow-y:auto;
}
.jy-drawer.is-open{transform:translateX(0);}
.jy-drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.jy-drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--jy-line);background:#fff;
  color:var(--jy-text-2);font-size:18px;cursor:pointer;
}
.jy-drawer-group h3{font-size:13px;font-weight:600;color:var(--jy-text-3);margin-bottom:10px;letter-spacing:.4px;}
.jy-drawer-group a{
  display:block;padding:13px 14px;border-radius:12px;font-size:15px;font-weight:500;
  color:var(--jy-text);border:1px solid var(--jy-line);margin-bottom:10px;background:#fff;
}
.jy-drawer-group a[aria-current="page"]{background:var(--jy-brand-soft);border-color:#C9DDFA;color:var(--jy-brand);font-weight:600;}
.jy-drawer-group a:hover{border-color:#C9DDFA;}
.jy-drawer .jy-btn{width:100%;}

/* ===================== 面包屑 & 分类胶囊 ===================== */
.jy-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--jy-text-3);margin-bottom:18px;}
.jy-crumb a{color:var(--jy-text-3);}
.jy-crumb a:hover{color:var(--jy-brand);}
.jy-crumb span.sep{color:#C4D0E0;}
.jy-crumb strong{color:var(--jy-brand);font-weight:600;}
.jy-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.jy-chip{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 20px;
  border-radius:var(--jy-r-pill);border:1px solid var(--jy-line);background:#fff;
  font-size:14px;font-weight:500;color:var(--jy-text-2);
}
.jy-chip:hover{border-color:#C9DDFA;color:var(--jy-brand);}
.jy-chip.is-active{background:var(--jy-brand);border-color:var(--jy-brand);color:#fff;font-weight:600;}

/* ===================== 分类页头图 ===================== */
.jy-cathero{position:relative;background:var(--jy-brand-soft);overflow:hidden;padding:44px 0 52px;}
.jy-cathero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') right center/cover no-repeat;
  opacity:.16;pointer-events:none;
}
.jy-cathero-inner{position:relative;z-index:1;}
.jy-cathero-text{max-width:760px;}
.jy-cathero h1{font-size:clamp(30px,4.4vw,44px);font-weight:700;line-height:1.25;margin-bottom:18px;}
.jy-cathero .jy-lead{font-size:16px;line-height:1.9;color:var(--jy-text-2);max-width:660px;}
.jy-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.jy-meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px;font-size:14px;color:var(--jy-text-3);}
.jy-meta-line li{display:flex;align-items:center;gap:10px;}
.jy-meta-line li+li::before{content:"";width:1px;height:13px;background:#C4D0E0;display:inline-block;}

/* ===================== 时间轴 ===================== */
.jy-timeline{position:relative;margin-top:8px;}
.jy-timeline::before{
  content:"";position:absolute;left:19px;top:10px;bottom:26px;width:2px;
  background:var(--jy-line);border-radius:2px;
}
.jy-tl-item{position:relative;padding-left:66px;padding-bottom:32px;}
.jy-tl-item:last-child{padding-bottom:0;}
.jy-tl-dot{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  background:#fff;border:2px solid var(--jy-brand);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:var(--jy-accent);
  box-shadow:0 4px 12px rgba(26,107,224,.14);
}
.jy-tl-body{
  background:var(--jy-surface);border:1px solid var(--jy-line);border-radius:var(--jy-r-card);
  padding:24px 26px;box-shadow:var(--jy-sh-1);transition:box-shadow .25s var(--jy-ease),transform .25s var(--jy-ease);
}
.jy-tl-body:hover{box-shadow:var(--jy-sh-2);transform:translateY(-3px);}
.jy-tl-body h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.jy-tl-body p{font-size:15px;line-height:1.85;}
.jy-tl-tag{
  display:inline-block;font-size:12px;font-weight:500;color:var(--jy-brand);
  background:var(--jy-brand-soft);border-radius:var(--jy-r-pill);padding:4px 12px;margin-bottom:12px;
}
.jy-tl-thumb{
  margin-top:16px;width:100%;max-width:340px;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--jy-r-img);border:1px solid var(--jy-line);background:var(--jy-line-soft);
}

/* ===================== 双列对比卡 ===================== */
.jy-cmp-card{
  height:100%;border-radius:var(--jy-r-card);padding:28px;border:1px solid var(--jy-line);
  box-shadow:var(--jy-sh-1);
}
.jy-cmp-card--light{background:#fff;}
.jy-cmp-card--soft{background:var(--jy-brand-soft);border-color:#CFE0FA;}
.jy-cmp-top{display:flex;align-items:center;gap:12px;margin-bottom:8px;}
.jy-cmp-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--jy-line);color:var(--jy-brand);font-size:19px;font-weight:700;
}
.jy-cmp-card--soft .jy-cmp-icon{background:#fff;border-color:#CFE0FA;}
.jy-cmp-card h3{font-size:20px;font-weight:600;}
.jy-cmp-sub{font-size:14px;color:var(--jy-text-3);margin-bottom:18px;}
.jy-cmp-list li{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:13px 0;border-bottom:1px solid var(--jy-line-soft);font-size:15px;
}
.jy-cmp-list li:last-child{border-bottom:0;}
.jy-cmp-list dt{color:var(--jy-text-3);font-weight:400;flex:0 0 auto;}
.jy-cmp-list dd{margin:0;color:var(--jy-text);text-align:right;font-weight:500;}
.jy-cmp-foot{
  margin-top:20px;padding-top:18px;border-top:1px dashed #CFE0FA;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.jy-cmp-foot span{font-size:14px;color:var(--jy-text-2);}

/* ===================== FAQ ===================== */
.jy-faq .accordion-item{
  border:1px solid var(--jy-line);border-radius:12px;background:#fff;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--jy-sh-1);
}
.jy-faq .accordion-button{
  font-size:16px;font-weight:600;color:var(--jy-text);background:#fff;
  padding:20px 22px;border:0;border-left:3px solid transparent;box-shadow:none;
  transition:all .25s var(--jy-ease);
}
.jy-faq .accordion-button:hover{color:var(--jy-brand);}
.jy-faq .accordion-button:not(.collapsed){
  color:var(--jy-brand);background:var(--jy-brand-soft);border-left-color:var(--jy-brand);
}
.jy-faq .accordion-button:focus{box-shadow:none;}
.jy-faq .accordion-button::after{
  content:"+";background-image:none;width:26px;height:26px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:500;color:var(--jy-text-3);transform:none;
}
.jy-faq .accordion-button:not(.collapsed)::after{content:"−";color:var(--jy-brand);transform:none;}
.jy-faq .accordion-body{padding:2px 22px 22px;font-size:15px;line-height:1.85;color:var(--jy-text-2);}
.jy-faq .accordion-body strong{color:var(--jy-text);}

/* ===================== 深色 CTA 条 ===================== */
.jy-cta{background:var(--jy-night);padding:56px 0;position:relative;overflow:hidden;}
.jy-cta::after{
  content:"";position:absolute;right:-80px;top:-60px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(26,107,224,.45),rgba(26,107,224,0) 68%);
  pointer-events:none;
}
.jy-cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.jy-cta-text{max-width:660px;}
.jy-cta-badge{
  display:inline-block;font-size:12px;font-weight:500;color:#fff;
  background:rgba(23,184,166,.22);border:1px solid rgba(23,184,166,.5);
  border-radius:var(--jy-r-pill);padding:5px 14px;margin-bottom:16px;
}
.jy-cta h2{color:#fff;font-size:clamp(24px,3vw,32px);margin-bottom:12px;}
.jy-cta p{color:rgba(255,255,255,.72);font-size:15px;line-height:1.85;}
.jy-cta-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px;}
.jy-cta-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;font-size:13px;color:rgba(255,255,255,.55);}
.jy-cta-meta li+li::before{content:"";display:inline-block;width:1px;height:12px;background:rgba(255,255,255,.28);margin-right:10px;vertical-align:-1px;}
.jy-cta-qr{
  background:#fff;border-radius:var(--jy-r-card);padding:20px;text-align:center;
  box-shadow:0 14px 36px rgba(0,0,0,.28);flex:0 0 auto;
}
.jy-cta-qr svg{width:132px;height:132px;display:block;margin:0 auto;}
.jy-cta-qr p{margin-top:12px;font-size:13px;color:var(--jy-text-2);}

/* ===================== 页脚 ===================== */
.jy-footer{background:var(--jy-foot);border-top:1px solid var(--jy-line);padding:64px 0 0;}
.jy-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;}
.jy-footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--jy-text-2);max-width:360px;}
.jy-footer-tags{font-size:13px;color:var(--jy-text-3);letter-spacing:.2px;}
.jy-footer-col h3{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--jy-text);}
.jy-footer-col a{display:block;font-size:14px;color:var(--jy-text-2);padding:6px 0;}
.jy-footer-col a:hover{color:var(--jy-brand);}
.jy-qr-mini{
  width:132px;padding:10px;background:#fff;border-radius:12px;border:1px solid var(--jy-line);
}
.jy-qr-mini svg{width:100%;height:auto;display:block;}
.jy-footer-bottom{
  margin-top:48px;border-top:1px solid var(--jy-line);
  padding:20px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--jy-text-3);
}
.jy-footer-bottom p{font-size:13px;color:var(--jy-text-3);}

/* ===================== 移动底栏 ===================== */
.jy-mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1030;
  background:#fff;border-top:1px solid var(--jy-line);
  padding:10px 16px;align-items:center;justify-content:space-between;gap:12px;
  box-shadow:0 -6px 20px rgba(20,80,170,.08);
}
.jy-mobile-bar span{font-size:13px;color:var(--jy-text-2);}
.jy-mobile-bar .jy-btn{height:44px;padding:0 20px;font-size:14px;}

/* ===================== 动效 ===================== */
.jy-reveal{opacity:0;transform:translateY(12px);transition:opacity .3s var(--jy-ease),transform .3s var(--jy-ease);}
.jy-reveal.is-in{opacity:1;transform:none;}

/* ===================== 响应式 ===================== */
@media (max-width:1199.98px){
  .jy-footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  :root{--jy-hd:60px;}
  .jy-nav-menu{display:none;}
  .jy-burger{display:block;}
  .jy-header-actions .jy-btn{display:none;}
  .jy-section{padding:56px 0;}
  .jy-section-sm{padding:48px 0;}
  .jy-cathero{padding:34px 0 42px;}
  .jy-cathero-text{max-width:none;}
  .jy-hero-actions .jy-btn{flex:1 1 100%;}
  .jy-mobile-bar{display:flex;}
  body{padding-bottom:66px;}
  .jy-footer{padding-top:48px;}
  .jy-footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .jy-cta-inner{flex-direction:column;align-items:flex-start;}
  .jy-cta-qr{width:100%;max-width:240px;}
  .jy-sec-head{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (max-width:767.98px){
  .jy-timeline::before{left:15px;}
  .jy-tl-item{padding-left:52px;}
  .jy-tl-dot{width:32px;height:32px;font-size:12px;}
  .jy-tl-body{padding:20px;}
  .jy-cmp-list li{flex-direction:column;gap:4px;}
  .jy-cmp-list dd{text-align:left;color:var(--jy-text);}
  .jy-cta{padding:44px 0;}
  .jy-cta-btns .jy-btn{flex:1 1 100%;}
}
@media (max-width:575.98px){
  .jy-container{padding:0 18px;}
  .jy-footer-grid{grid-template-columns:1fr;gap:26px;}
  .jy-section{padding:48px 0;}
  .jy-logo-text em{display:none;}
  .jy-cta-meta{gap:6px;font-size:12px;}
  .jy-meta-line{gap:8px;font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .jy-reveal{opacity:1;transform:none;}
}