/* roulang page: index */
:root{
  --jy-primary:#E2452A;
  --jy-primary-dark:#C4371F;
  --jy-primary-soft:rgba(226,69,42,.08);
  --jy-primary-line:rgba(226,69,42,.4);
  --jy-secondary:#123A33;
  --jy-dark:#101413;
  --jy-bg:#F7F5F1;
  --jy-card:#FFFFFF;
  --jy-border:#E4E0D8;
  --jy-text:#141716;
  --jy-muted:#5A615E;
  --jy-faint:#8A918D;
  --jy-r-sm:6px;
  --jy-r:14px;
  --jy-r-lg:24px;
  --jy-sh-1:0 1px 2px rgba(16,20,19,.05);
  --jy-sh-2:0 18px 40px -16px rgba(16,20,19,.18);
  --jy-ease:cubic-bezier(.22,.61,.36,1);
  --jy-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --jy-serif:Georgia,"Times New Roman",ui-serif,serif;
  --jy-sec:112px;
  --jy-nav-h:76px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:var(--jy-nav-h);
  background:var(--jy-bg);
  color:var(--jy-text);
  font-family:var(--jy-sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.jy-locked{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:var(--jy-text);text-decoration:none;transition:color .2s var(--jy-ease);}
a:hover{color:var(--jy-primary);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
:focus-visible{outline:2px solid var(--jy-primary);outline-offset:2px;}
.jy-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.jy-sec{padding-top:var(--jy-sec);padding-bottom:var(--jy-sec);}
.jy-sec-tight{padding-top:72px;padding-bottom:72px;}
.jy-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--jy-primary);font-weight:600;margin-bottom:18px;
}
.jy-eyebrow::before{content:"";width:22px;height:2px;background:var(--jy-primary);display:block;}
.jy-h2{font-size:36px;line-height:1.22;letter-spacing:-.02em;font-weight:700;}
.jy-h3{font-size:20px;line-height:1.45;font-weight:600;letter-spacing:-.01em;}
.jy-lead{font-size:16px;color:var(--jy-muted);line-height:1.85;}
.jy-note{font-size:14px;color:var(--jy-faint);line-height:1.7;}
.jy-sec-head{margin-bottom:56px;max-width:760px;}
.jy-sec-head .jy-h2{margin-bottom:16px;}
.jy-hr{height:1px;background:var(--jy-border);border:0;margin:0;}

/* ---------- 按钮 ---------- */
.jy-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--jy-r-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background-color .22s var(--jy-ease),color .22s var(--jy-ease),
             transform .22s var(--jy-ease),box-shadow .22s var(--jy-ease),
             border-color .22s var(--jy-ease);
  border:1px solid transparent;white-space:nowrap;
}
.jy-btn-primary{background:var(--jy-primary);color:#fff;box-shadow:var(--jy-sh-1);}
.jy-btn-primary:hover{background:var(--jy-primary-dark);color:#fff;transform:translateY(-1px);}
.jy-btn-ghost{border-color:var(--jy-primary);color:var(--jy-primary);background:transparent;}
.jy-btn-ghost:hover{background:var(--jy-primary-soft);color:var(--jy-primary);transform:translateY(-1px);}
.jy-btn-dark{background:var(--jy-secondary);color:#fff;}
.jy-btn-dark:hover{background:#0C2A25;color:#fff;transform:translateY(-1px);}
.jy-btn-block{width:100%;}
.jy-btn-sm{padding:10px 20px;font-size:14px;}
.jy-btn:focus-visible{outline:2px solid var(--jy-primary);outline-offset:0;box-shadow:0 0 0 4px rgba(226,69,42,.14);}
.jy-btn-hint{font-size:12px;color:var(--jy-faint);margin-top:10px;}

/* ---------- 徽章 / 标签 ---------- */
.jy-badge{
  display:inline-block;font-size:13px;letter-spacing:.06em;
  padding:4px 12px;border-radius:999px;
  border:1px solid var(--jy-primary-line);color:var(--jy-primary);
  background:rgba(255,255,255,.7);font-weight:500;
}
.jy-badge-dark{border-color:rgba(255,255,255,.32);color:rgba(255,255,255,.86);background:transparent;}

/* ---------- 导航 ---------- */
.jy-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--jy-nav-h);
  background:rgba(247,245,241,.86);
  backdrop-filter:saturate(160%) blur(10px);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:height .28s var(--jy-ease),background-color .28s var(--jy-ease),border-color .28s var(--jy-ease);
}
.jy-header.is-scrolled{height:62px;background:rgba(255,255,255,.94);border-bottom-color:var(--jy-border);}
.jy-header-inner{
  height:100%;display:flex;align-items:center;justify-content:space-between;
  gap:24px;max-width:1200px;margin:0 auto;padding:0 24px;
}
.jy-nav{display:flex;align-items:center;gap:30px;}
.jy-nav-side{flex:1 1 0;min-width:0;}
.jy-nav-left{justify-content:flex-start;}
.jy-nav-right{justify-content:flex-end;}
.jy-nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--jy-muted);
  padding:6px 0;white-space:nowrap;
}
.jy-nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--jy-primary);transition:width .26s var(--jy-ease);
}
.jy-nav-link:hover{color:var(--jy-text);}
.jy-nav-link:hover::after{width:100%;}
.jy-nav-link.is-active{color:var(--jy-text);}
.jy-nav-link.is-active::after{width:100%;}
.jy-logo{
  display:flex;align-items:center;gap:10px;flex:0 0 auto;
  font-weight:700;font-size:17px;letter-spacing:-.01em;color:var(--jy-text);
}
.jy-logo:hover{color:var(--jy-text);}
.jy-logo-mark{
  width:28px;height:28px;border-radius:8px;background:var(--jy-primary);
  position:relative;flex:0 0 28px;box-shadow:inset -6px -6px 0 rgba(0,0,0,.10);
}
.jy-logo-mark::after{
  content:"";position:absolute;inset:9px;border-radius:2px;background:#fff;opacity:.92;
}
.jy-logo-text{white-space:nowrap;}
.jy-header-cta{margin-left:6px;}
.jy-burger{
  display:none;width:42px;height:42px;border-radius:8px;
  align-items:center;justify-content:center;color:var(--jy-text);
  border:1px solid var(--jy-border);background:#fff;
}
.jy-burger i{font-size:18px;}

.jy-drawer{
  position:fixed;top:0;right:0;height:100%;width:86%;max-width:380px;
  background:#fff;z-index:1200;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .34s var(--jy-ease);
  box-shadow:-24px 0 60px -30px rgba(16,20,19,.35);
}
.jy-drawer.is-open{transform:translateX(0);}
.jy-drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 22px;border-bottom:1px solid var(--jy-border);
}
.jy-drawer-close{width:38px;height:38px;border-radius:8px;border:1px solid var(--jy-border);display:flex;align-items:center;justify-content:center;}
.jy-drawer-body{flex:1 1 auto;overflow-y:auto;padding:8px 0;}
.jy-drawer-link{
  display:block;padding:18px 24px;font-size:20px;font-weight:600;
  color:var(--jy-text);border-bottom:1px solid var(--jy-border);
}
.jy-drawer-link.is-active{color:var(--jy-primary);}
.jy-drawer-foot{padding:18px 22px 26px;border-top:1px solid var(--jy-border);}
.jy-overlay{
  position:fixed;inset:0;background:rgba(16,20,19,.42);z-index:1100;
  opacity:0;visibility:hidden;transition:opacity .3s var(--jy-ease),visibility .3s var(--jy-ease);
}
.jy-overlay.is-open{opacity:1;visibility:visible;}

/* ---------- Hero ---------- */
.jy-hero{padding:72px 0 88px;position:relative;overflow:hidden;}
.jy-hero::before{
  content:"";position:absolute;top:-160px;right:-140px;width:520px;height:520px;
  border-radius:50%;background:rgba(226,69,42,.06);z-index:0;
}
.jy-hero-grid{position:relative;z-index:1;align-items:center;}
.jy-hero-copy{padding-right:36px;}
.jy-hero-title{
  font-size:60px;line-height:1.06;letter-spacing:-.02em;font-weight:700;margin-bottom:22px;
}
.jy-hero-sub{font-size:18px;color:var(--jy-muted);line-height:1.75;margin-bottom:34px;max-width:520px;}
.jy-hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:46px;}
.jy-stats{display:flex;flex-wrap:wrap;gap:44px;}
.jy-stat{display:flex;flex-direction:column;}
.jy-stat-num{font-family:var(--jy-serif);font-size:34px;line-height:1.1;color:var(--jy-text);letter-spacing:-.01em;}
.jy-stat-label{font-size:12px;color:var(--jy-faint);letter-spacing:.06em;margin-top:6px;}
.jy-hero-visual{position:relative;}
.jy-hero-visual img{
  width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--jy-r-lg);
  box-shadow:var(--jy-sh-2);
}
.jy-hero-visual::after{
  content:"";position:absolute;left:-26px;bottom:-26px;width:160px;height:160px;
  border-radius:22px;background:rgba(226,69,42,.08);z-index:-1;
}

/* ---------- 信任条 ---------- */
.jy-trust{border-top:1px solid var(--jy-border);border-bottom:1px solid var(--jy-border);background:#fff;}
.jy-trust-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.jy-trust-item{padding:30px 26px;border-right:1px solid var(--jy-border);}
.jy-trust-item:last-child{border-right:0;}
.jy-trust-item strong{display:block;font-size:15px;font-weight:600;margin-bottom:6px;color:var(--jy-text);}
.jy-trust-item span{font-size:13px;color:var(--jy-faint);line-height:1.7;}

/* ---------- 功能分组 ---------- */
.jy-feature-wrap{position:relative;}
.jy-feature-sticky{position:sticky;top:112px;}
.jy-feature-sticky .jy-h2{margin-bottom:20px;}
.jy-feature-list{border-top:1px solid var(--jy-border);}
.jy-feature-item{
  display:flex;gap:26px;align-items:flex-start;
  padding:30px 12px 30px 0;border-bottom:1px solid var(--jy-border);
  transition:transform .28s var(--jy-ease),background-color .28s var(--jy-ease);
  position:relative;
}
.jy-feature-item:hover{transform:translateX(4px);}
.jy-feature-num{
  font-family:var(--jy-serif);font-size:15px;color:var(--jy-faint);
  flex:0 0 42px;letter-spacing:.06em;padding-top:4px;
  transition:color .28s var(--jy-ease);
}
.jy-feature-item:hover .jy-feature-num{color:var(--jy-primary);}
.jy-feature-body{flex:1 1 auto;min-width:0;}
.jy-feature-body h3{font-size:22px;font-weight:600;margin-bottom:8px;letter-spacing:-.01em;}
.jy-feature-body p{font-size:15px;color:var(--jy-muted);line-height:1.8;}
.jy-feature-arrow{
  flex:0 0 auto;color:var(--jy-faint);font-size:15px;padding-top:8px;
  transition:transform .28s var(--jy-ease),color .28s var(--jy-ease);
}
.jy-feature-item:hover .jy-feature-arrow{color:var(--jy-primary);transform:translate(3px,-3px);}

/* ---------- 使用场景 ---------- */
.jy-scene{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;padding:44px 0;}
.jy-scene.is-reverse{grid-template-columns:7fr 5fr;}
.jy-scene.is-reverse .jy-scene-media{order:2;}
.jy-scene.is-reverse .jy-scene-copy{order:1;}
.jy-scene-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--jy-r);
  box-shadow:var(--jy-sh-1);transition:transform .4s var(--jy-ease);
}
.jy-scene-media{overflow:hidden;border-radius:var(--jy-r);}
.jy-scene-media:hover img{transform:scale(1.03);}
.jy-scene-copy h3{font-size:26px;font-weight:700;letter-spacing:-.015em;margin:16px 0 14px;}
.jy-scene-copy p{font-size:15px;color:var(--jy-muted);line-height:1.85;margin-bottom:18px;}
.jy-link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--jy-primary);
  border-bottom:1px solid transparent;transition:border-color .24s var(--jy-ease);
}
.jy-link-more:hover{border-bottom-color:var(--jy-primary);color:var(--jy-primary);}
.jy-scene-divider{border:0;height:1px;background:var(--jy-border);}

/* ---------- 案例（深色） ---------- */
.jy-case{background:var(--jy-dark);color:#fff;padding:104px 0;}
.jy-case .jy-eyebrow{color:#F0856F;}
.jy-case .jy-eyebrow::before{background:#F0856F;}
.jy-case-quote{
  font-size:28px;line-height:1.6;font-weight:600;letter-spacing:-.01em;
  max-width:860px;margin-bottom:56px;color:#fff;
}
.jy-case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.jy-case-item{
  border-top:1px solid rgba(255,255,255,.16);padding-top:24px;
}
.jy-case-avatar{
  width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(226,69,42,.12);color:#F0856F;font-family:var(--jy-serif);font-size:19px;
  margin-bottom:16px;
}
.jy-case-item h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:8px;}
.jy-case-item p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.75;margin-bottom:14px;}
.jy-case-meta{font-size:13px;color:rgba(255,255,255,.42);letter-spacing:.04em;}

/* ---------- 价格 ---------- */
.jy-price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.jy-price-card{
  background:var(--jy-card);border:1px solid var(--jy-border);border-radius:var(--jy-r);
  padding:32px 28px;position:relative;transition:box-shadow .3s var(--jy-ease),border-color .3s var(--jy-ease),transform .3s var(--jy-ease);
}
.jy-price-card:hover{box-shadow:var(--jy-sh-2);border-color:var(--jy-primary-line);}
.jy-price-card.is-featured{margin-top:-24px;border-top:4px solid var(--jy-primary);box-shadow:var(--jy-sh-2);}
.jy-price-flag{
  position:absolute;top:18px;right:20px;font-size:12px;letter-spacing:.08em;
  color:#fff;background:var(--jy-primary);padding:3px 10px;border-radius:999px;
}
.jy-price-name{font-size:15px;font-weight:600;color:var(--jy-muted);letter-spacing:.04em;margin-bottom:14px;}
.jy-price-num{font-family:var(--jy-serif);font-size:44px;line-height:1.05;letter-spacing:-.02em;margin-bottom:6px;}
.jy-price-num span{font-family:var(--jy-sans);font-size:14px;color:var(--jy-faint);margin-left:6px;letter-spacing:0;}
.jy-price-desc{font-size:14px;color:var(--jy-muted);line-height:1.7;margin-bottom:24px;padding-bottom:22px;border-bottom:1px solid var(--jy-border);}
.jy-price-list{margin-bottom:28px;}
.jy-price-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--jy-muted);
  line-height:1.7;padding:7px 0;
}
.jy-price-list li i{color:var(--jy-primary);font-size:12px;margin-top:7px;flex:0 0 auto;}

/* ---------- 资讯 ---------- */
.jy-news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.jy-news-card{
  background:var(--jy-card);border:1px solid var(--jy-border);border-radius:var(--jy-r);
  overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .3s var(--jy-ease),border-color .3s var(--jy-ease),transform .3s var(--jy-ease);
}
.jy-news-card:hover{box-shadow:var(--jy-sh-2);border-color:var(--jy-primary-line);transform:translateY(-2px);}
.jy-news-cover{overflow:hidden;display:block;}
.jy-news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s var(--jy-ease);}
.jy-news-card:hover .jy-news-cover img{transform:scale(1.03);}
.jy-news-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.jy-news-cat{margin-bottom:14px;}
.jy-news-title{
  font-size:18px;font-weight:600;line-height:1.5;letter-spacing:-.01em;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.jy-news-title a{color:var(--jy-text);}
.jy-news-title a:hover{color:var(--jy-primary);}
.jy-news-excerpt{
  font-size:14px;color:var(--jy-muted);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.jy-news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--jy-border);
  font-size:13px;color:var(--jy-faint);display:flex;align-items:center;justify-content:space-between;
}
.jy-empty{
  background:var(--jy-primary-soft);border-radius:var(--jy-r);
  padding:48px 24px;text-align:center;
}
.jy-empty p{font-size:15px;color:var(--jy-muted);margin-bottom:16px;}

/* ---------- FAQ ---------- */
.jy-faq-wrap{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start;}
.jy-faq-item{border-bottom:1px solid var(--jy-border);}
.jy-faq-item:first-child{border-top:1px solid var(--jy-border);}
.jy-faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;font-size:17px;font-weight:600;cursor:pointer;color:var(--jy-text);
  transition:color .24s var(--jy-ease);
}
.jy-faq-item summary::-webkit-details-marker{display:none;}
.jy-faq-item summary:hover{color:var(--jy-primary);}
.jy-faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .3s var(--jy-ease);
}
.jy-faq-icon::before,.jy-faq-icon::after{
  content:"";position:absolute;background:var(--jy-primary);border-radius:2px;
}
.jy-faq-icon::before{left:0;top:10px;width:22px;height:2px;}
.jy-faq-icon::after{left:10px;top:0;width:2px;height:22px;}
.jy-faq-item[open] .jy-faq-icon{transform:rotate(45deg);}
.jy-faq-item[open] summary{color:var(--jy-primary);}
.jy-faq-answer{
  padding:0 40px 26px 4px;font-size:15px;color:var(--jy-muted);line-height:1.8;
  border-left:3px solid transparent;
}
.jy-faq-item[open] .jy-faq-answer{border-left-color:var(--jy-primary);padding-left:18px;}

/* ---------- CTA ---------- */
.jy-cta{background:#fff;border-top:1px solid var(--jy-border);border-bottom:1px solid var(--jy-border);}
.jy-cta-grid{display:grid;grid-template-columns:6fr 5fr;gap:64px;align-items:center;}
.jy-cta h2{font-size:34px;line-height:1.25;letter-spacing:-.02em;margin-bottom:16px;}
.jy-cta p{font-size:16px;color:var(--jy-muted);line-height:1.8;margin-bottom:28px;}
.jy-form{background:var(--jy-bg);border:1px solid var(--jy-border);border-radius:var(--jy-r);padding:28px;}
.jy-field{margin-bottom:18px;}
.jy-field label{display:block;font-size:13px;font-weight:600;color:var(--jy-muted);letter-spacing:.04em;margin-bottom:8px;}
.jy-field input,.jy-field select{
  width:100%;height:44px;padding:0 14px;border-radius:var(--jy-r-sm);
  border:1px solid var(--jy-border);background:#fff;
  transition:border-color .22s var(--jy-ease),box-shadow .22s var(--jy-ease);
}
.jy-field input:focus,.jy-field select:focus{
  outline:none;border-color:var(--jy-primary);box-shadow:0 0 0 4px rgba(226,69,42,.12);
}
.jy-field-hint{font-size:12px;color:var(--jy-faint);margin-top:8px;}

/* ---------- 页脚 ---------- */
.jy-footer{background:var(--jy-dark);color:rgba(255,255,255,.72);padding:78px 0 0;}
.jy-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;padding-bottom:56px;}
.jy-footer .jy-logo{color:#fff;margin-bottom:18px;}
.jy-footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:300px;margin-bottom:18px;}
.jy-footer-contact{font-size:14px;color:rgba(255,255,255,.72);}
.jy-footer-contact a{color:#fff;border-bottom:1px solid rgba(226,69,42,.6);}
.jy-footer-contact a:hover{color:#F0856F;}
.jy-footer h4{font-size:14px;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:18px;}
.jy-footer li{margin-bottom:12px;}
.jy-footer li a{font-size:14px;color:rgba(255,255,255,.72);border-bottom:1px solid transparent;transition:color .22s var(--jy-ease),border-color .22s var(--jy-ease);}
.jy-footer li a:hover{color:#fff;border-bottom-color:var(--jy-primary);}
.jy-footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 入场动效 ---------- */
.jy-reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--jy-ease),transform .32s var(--jy-ease);}
.jy-reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  :root{--jy-sec:80px;--jy-nav-h:68px;}
  .jy-nav-side{display:none;}
  .jy-burger{display:flex;}
  .jy-hero{padding:44px 0 64px;}
  .jy-hero-title{font-size:42px;}
  .jy-hero-copy{padding-right:0;margin-bottom:44px;}
  .jy-hero-visual img{aspect-ratio:16/9;}
  .jy-feature-sticky{position:static;margin-bottom:36px;}
  .jy-scene,.jy-scene.is-reverse{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .jy-scene.is-reverse .jy-scene-media{order:1;}
  .jy-scene.is-reverse .jy-scene-copy{order:2;}
  .jy-case-grid{grid-template-columns:1fr;gap:30px;}
  .jy-price-grid{grid-template-columns:1fr;}
  .jy-price-card.is-featured{margin-top:0;}
  .jy-news-list{grid-template-columns:repeat(2,1fr);}
  .jy-faq-wrap{grid-template-columns:1fr;gap:32px;}
  .jy-cta-grid{grid-template-columns:1fr;gap:40px;}
  .jy-trust-inner{grid-template-columns:repeat(2,1fr);}
  .jy-trust-item:nth-child(2){border-right:0;}
  .jy-trust-item:nth-child(1),.jy-trust-item:nth-child(2){border-bottom:1px solid var(--jy-border);}
  .jy-footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media screen and (max-width:767px){
  :root{--jy-sec:56px;}
  body{font-size:15px;}
  .jy-container{padding-left:18px;padding-right:18px;}
  .jy-hero-title{font-size:34px;}
  .jy-hero-sub{font-size:16px;}
  .jy-h2{font-size:24px;}
  .jy-hero-actions .jy-btn{flex:1 1 100%;}
  .jy-stats{gap:26px;}
  .jy-stat-num{font-size:26px;}
  .jy-case{padding:64px 0;}
  .jy-case-quote{font-size:21px;margin-bottom:36px;}
  .jy-news-list{grid-template-columns:1fr;}
  .jy-footer-grid{grid-template-columns:1fr;}
  .jy-cta h2{font-size:26px;}
  .jy-scene-copy h3{font-size:21px;}
  .jy-feature-body h3{font-size:19px;}
}
@media screen and (max-width:520px){
  .jy-logo-text{font-size:15px;}
  .jy-hero-visual::after{display:none;}
  .jy-trust-inner{grid-template-columns:1fr;}
  .jy-trust-item{border-right:0;border-bottom:1px solid var(--jy-border);}
  .jy-trust-item:last-child{border-bottom:0;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .jy-reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --jy-primary:#E2452A;
  --jy-primary-dark:#C2371F;
  --jy-primary-08:rgba(226,69,42,.08);
  --jy-primary-12:rgba(226,69,42,.12);
  --jy-primary-40:rgba(226,69,42,.40);
  --jy-secondary:#123A33;
  --jy-dark:#101413;
  --jy-bg:#F7F5F1;
  --jy-card:#FFFFFF;
  --jy-border:#E4E0D8;
  --jy-text:#141716;
  --jy-muted:#5A615E;
  --jy-faint:#8A918D;
  --jy-r-sm:6px;
  --jy-r-card:14px;
  --jy-r-hero:24px;
  --jy-sh-1:0 1px 2px rgba(16,20,19,.05);
  --jy-sh-2:0 18px 40px -16px rgba(16,20,19,.18);
  --jy-sec:112px;
  --jy-font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Segoe UI",sans-serif;
  --jy-serif:Georgia,ui-serif,"Times New Roman",serif;
  --jy-ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--jy-font);
  font-size:16px;
  line-height:1.85;
  color:var(--jy-text);
  background:var(--jy-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--jy-primary);text-decoration:none;}
a:focus-visible,button:focus-visible,input:focus-visible,
.jy-nav-link:focus-visible,.jy-pill:focus-visible{
  outline:2px solid var(--jy-primary);
  outline-offset:3px;
  border-radius:4px;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;color:var(--jy-text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}

.jy-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.grid-container.jy-container{max-width:1200px;padding-left:24px;padding-right:24px;}

/* ---------- Header ---------- */
.jy-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(247,245,241,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .28s var(--jy-ease),border-color .28s var(--jy-ease);
}
.jy-header.is-scrolled{
  background:rgba(255,255,255,.95);
  border-bottom-color:var(--jy-border);
}
.jy-header-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:76px;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  transition:height .28s var(--jy-ease);
}
.jy-header.is-scrolled .jy-header-inner{height:62px;}
.jy-nav-side{display:flex;align-items:center;gap:4px;}
.jy-nav-left{justify-content:flex-start;}
.jy-nav-right{justify-content:flex-end;gap:8px;}
.jy-nav-link{
  position:relative;
  padding:9px 12px;
  font-size:15px;line-height:1.2;
  color:var(--jy-text);
  text-decoration:none;
  border-radius:4px;
  transition:color .22s var(--jy-ease);
}
.jy-nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--jy-primary);
  transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--jy-ease);
}
.jy-nav-link:hover{color:var(--jy-primary);}
.jy-nav-link:hover::after{transform:scaleX(1);}
.jy-nav-link.is-active{color:var(--jy-primary);font-weight:600;}
.jy-nav-link.is-active::after{transform:scaleX(1);}

.jy-logo{
  display:inline-flex;align-items:center;gap:10px;
  text-decoration:none;color:var(--jy-text);
  justify-self:center;
}
.jy-logo-mark{
  position:relative;width:28px;height:28px;flex:0 0 28px;
  border-radius:8px;background:var(--jy-primary);
}
.jy-logo-mark::after{
  content:"";position:absolute;right:6px;bottom:6px;
  width:11px;height:11px;border-radius:3px;background:#fff;opacity:.92;
}
.jy-logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}

.jy-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;
  font-size:15px;font-weight:600;line-height:1.2;
  border-radius:var(--jy-r-sm);
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:background .24s var(--jy-ease),color .24s var(--jy-ease),border-color .24s var(--jy-ease),transform .24s var(--jy-ease);
}
.jy-btn-primary{background:var(--jy-primary);color:#fff;border-color:var(--jy-primary);}
.jy-btn-primary:hover{background:var(--jy-primary-dark);border-color:var(--jy-primary-dark);color:#fff;transform:translateY(-1px);}
.jy-btn-ghost{background:transparent;color:var(--jy-primary);border-color:var(--jy-primary);}
.jy-btn-ghost:hover{background:var(--jy-primary-08);transform:translateY(-1px);}
.jy-btn-text{
  background:none;border:0;padding:6px 0;color:var(--jy-primary);font-weight:600;
  border-bottom:1px solid transparent;
}
.jy-btn-text:hover{border-bottom-color:var(--jy-primary);}
.jy-btn-sm{padding:10px 18px;font-size:14px;}
.jy-btn-block{width:100%;}
.jy-header-cta{margin-left:10px;}

.jy-burger{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:8px;
  border:1px solid var(--jy-border);background:#fff;color:var(--jy-text);
  font-size:17px;cursor:pointer;
  transition:border-color .24s var(--jy-ease),color .24s var(--jy-ease);
}
.jy-burger:hover{border-color:var(--jy-primary);color:var(--jy-primary);}

/* ---------- Drawer ---------- */
.jy-drawer-mask{
  position:fixed;inset:0;z-index:190;background:rgba(16,20,19,.45);
  opacity:0;visibility:hidden;transition:opacity .3s var(--jy-ease),visibility .3s;
}
.jy-drawer-mask.is-open{opacity:1;visibility:visible;}
.jy-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:200;
  width:min(86vw,380px);
  background:#fff;
  transform:translateX(101%);
  transition:transform .35s var(--jy-ease);
  display:flex;flex-direction:column;
}
.jy-drawer.is-open{transform:translateX(0);}
.jy-drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 22px;border-bottom:1px solid var(--jy-border);
}
.jy-drawer-close{
  width:38px;height:38px;border-radius:8px;border:1px solid var(--jy-border);
  background:#fff;color:var(--jy-text);cursor:pointer;font-size:16px;
}
.jy-drawer-nav{flex:1;overflow-y:auto;padding:8px 0;}
.jy-drawer-nav a{
  display:block;padding:18px 22px;
  font-size:20px;font-weight:600;color:var(--jy-text);
  border-bottom:1px solid var(--jy-border);
  transition:color .22s var(--jy-ease),background .22s var(--jy-ease);
}
.jy-drawer-nav a:hover{color:var(--jy-primary);background:var(--jy-primary-08);}
.jy-drawer-nav a.is-active{color:var(--jy-primary);}
.jy-drawer-foot{padding:18px 22px;border-top:1px solid var(--jy-border);}

/* ---------- Hero ---------- */
.jy-hero-narrow{
  padding:150px 0 48px;
  background:var(--jy-bg);
}
.jy-hero-grid{
  display:grid;grid-template-columns:minmax(0,1fr) 40%;
  gap:56px;align-items:center;
}
.jy-eyebrow{
  display:inline-block;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--jy-primary);font-weight:700;margin-bottom:18px;
}
.jy-hero-narrow h1{
  font-size:60px;line-height:1.06;letter-spacing:-.02em;
  margin-bottom:20px;
}
.jy-hero-sub{
  font-size:17px;color:var(--jy-muted);max-width:560px;margin-bottom:30px;
}
.jy-hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.jy-hero-note{
  margin-top:16px;font-size:13px;color:var(--jy-faint);
}
.jy-hero-media{
  border-radius:var(--jy-r-hero);overflow:hidden;
  aspect-ratio:3/2;box-shadow:var(--jy-sh-1);
  background:var(--jy-primary-08);
  position:relative;
}
.jy-hero-media img{width:100%;height:100%;object-fit:cover;}
.jy-hero-media::before{
  content:"";position:absolute;left:-18px;bottom:-18px;width:120px;height:120px;
  border-radius:var(--jy-r-hero);background:var(--jy-primary-08);z-index:-1;
}

/* ---------- Anchor bar ---------- */
.jy-anchorbar-wrap{
  position:sticky;top:62px;z-index:80;
  background:rgba(247,245,241,.96);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--jy-border);
}
.jy-anchorbar{
  display:flex;gap:10px;overflow-x:auto;
  padding:14px 0;
  scrollbar-width:none;
}
.jy-anchorbar::-webkit-scrollbar{display:none;}
.jy-pill{
  flex:0 0 auto;
  padding:8px 18px;border-radius:999px;
  border:1px solid var(--jy-border);background:#fff;
  font-size:14px;color:var(--jy-muted);text-decoration:none;white-space:nowrap;
  transition:border-color .24s var(--jy-ease),color .24s var(--jy-ease),background .24s var(--jy-ease);
}
.jy-pill:hover{border-color:var(--jy-primary-40);color:var(--jy-primary);}
.jy-pill.is-current{background:var(--jy-primary);border-color:var(--jy-primary);color:#fff;font-weight:600;}

/* ---------- Sections ---------- */
.jy-section{padding:var(--jy-sec) 0;}
.jy-section-tight{padding:64px 0;}
.jy-lead-box{
  max-width:820px;
  font-size:17px;line-height:1.9;color:var(--jy-muted);
  border-left:3px solid var(--jy-primary);
  padding-left:24px;
}
.jy-section-head{margin-bottom:48px;}
.jy-section-head h2{font-size:36px;line-height:1.2;margin-bottom:14px;}
.jy-section-head p{font-size:16px;color:var(--jy-muted);max-width:720px;}

.jy-group{
  border-top:1px solid var(--jy-border);
  padding-top:56px;
  margin-top:96px;
}
.jy-group:first-of-type{margin-top:0;border-top:0;padding-top:0;}
.jy-group-head{
  display:grid;grid-template-columns:auto minmax(0,1fr);
  gap:28px;align-items:start;margin-bottom:40px;
}
.jy-group-num{
  font-family:var(--jy-serif);
  font-size:44px;line-height:1;color:var(--jy-primary);
  letter-spacing:-.02em;
}
.jy-group-title h2{font-size:30px;line-height:1.25;margin-bottom:12px;}
.jy-group-title p{font-size:16px;color:var(--jy-muted);max-width:760px;}

.jy-card-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.jy-card{
  display:flex;flex-direction:column;
  background:var(--jy-card);
  border:1px solid var(--jy-border);
  border-radius:var(--jy-r-card);
  overflow:hidden;
  box-shadow:var(--jy-sh-1);
  transition:border-color .24s var(--jy-ease),box-shadow .24s var(--jy-ease),transform .24s var(--jy-ease);
}
.jy-card:hover{
  border-color:var(--jy-primary-40);
  box-shadow:var(--jy-sh-2);
  transform:translateY(-2px);
}
.jy-card-media{
  aspect-ratio:16/10;overflow:hidden;background:var(--jy-primary-08);
}
.jy-card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s var(--jy-ease);
}
.jy-card:hover .jy-card-media img{transform:scale(1.03);}
.jy-card-body{
  padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;
}
.jy-badge{
  display:inline-block;
  font-size:13px;letter-spacing:.06em;
  padding:4px 12px;border-radius:999px;
  border:1px solid var(--jy-primary-40);
  color:var(--jy-primary);background:#fff;
  align-self:flex-start;
}
.jy-card-title{font-size:18px;line-height:1.45;font-weight:700;margin:0;}
.jy-card-text{font-size:14px;line-height:1.8;color:var(--jy-muted);margin:0;}
.jy-card-link{
  margin-top:auto;padding-top:8px;
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--jy-primary);
  border-bottom:1px solid transparent;
  align-self:flex-start;
  transition:border-color .24s var(--jy-ease),gap .24s var(--jy-ease);
}
.jy-card-link:hover{border-bottom-color:var(--jy-primary);gap:10px;}
.jy-card-link i{font-size:12px;}

/* ---------- FAQ ---------- */
.jy-faq-grid{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);
  gap:56px;align-items:start;
}
.jy-faq-side h2{font-size:36px;line-height:1.2;margin-bottom:14px;}
.jy-faq-side p{font-size:16px;color:var(--jy-muted);}
.jy-acc-item{
  background:#fff;border:1px solid var(--jy-border);
  border-radius:10px;margin-bottom:12px;overflow:hidden;
  transition:border-color .24s var(--jy-ease),box-shadow .24s var(--jy-ease);
}
.jy-acc-item:hover{border-color:var(--jy-primary-40);}
.jy-acc-item.is-open{
  border-color:var(--jy-primary-40);
  box-shadow:inset 3px 0 0 0 var(--jy-primary);
}
.jy-acc-btn{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;
  background:none;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--jy-text);text-align:left;
  line-height:1.6;
}
.jy-acc-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--jy-primary);font-size:13px;
  transition:transform .3s var(--jy-ease);
}
.jy-acc-item.is-open .jy-acc-icon{transform:rotate(45deg);}
.jy-acc-panel{max-height:0;overflow:hidden;transition:max-height .35s var(--jy-ease);}
.jy-acc-panel-inner{
  padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--jy-muted);
}

/* ---------- Points ---------- */
.jy-points{
  background:#fff;border:1px solid var(--jy-border);
  border-radius:var(--jy-r-card);padding:44px;
  box-shadow:var(--jy-sh-1);
}
.jy-points h2{font-size:28px;line-height:1.3;margin-bottom:24px;}
.jy-points ul{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px 40px;
}
.jy-points li{
  position:relative;padding-left:18px;
  font-size:15px;line-height:1.75;color:var(--jy-muted);
}
.jy-points li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:7px;border-radius:50%;background:var(--jy-primary);
}

/* ---------- Related ---------- */
.jy-related{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
}
.jy-related a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 22px;
  background:#fff;border:1px solid var(--jy-border);border-radius:var(--jy-r-card);
  color:var(--jy-text);font-weight:600;font-size:15px;
  transition:border-color .24s var(--jy-ease),color .24s var(--jy-ease),transform .24s var(--jy-ease);
}
.jy-related a:hover{border-color:var(--jy-primary-40);color:var(--jy-primary);transform:translateY(-2px);}
.jy-related a i{font-size:12px;color:var(--jy-primary);}

/* ---------- CTA ---------- */
.jy-cta{
  background:var(--jy-primary-08);
  padding:88px 0;
}
.jy-cta-inner{
  display:grid;grid-template-columns:minmax(0,1fr) auto;
  gap:40px;align-items:center;
}
.jy-cta h2{font-size:34px;line-height:1.25;margin-bottom:12px;}
.jy-cta p{font-size:16px;color:var(--jy-muted);max-width:640px;}
.jy-cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- Footer ---------- */
.jy-footer{
  background:var(--jy-dark);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
}
.jy-footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.jy-footer-brand .jy-logo{margin-bottom:18px;justify-self:flex-start;}
.jy-footer-brand .jy-logo-text{color:#fff;}
.jy-footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:280px;}
.jy-footer-contact{margin-top:10px;font-size:14px;}
.jy-footer h4{
  color:#fff;font-size:15px;font-weight:700;
  letter-spacing:.04em;margin-bottom:18px;
}
.jy-footer ul{display:flex;flex-direction:column;gap:10px;}
.jy-footer a{
  color:rgba(255,255,255,.72);font-size:14px;text-decoration:none;
  border-bottom:1px solid transparent;padding-bottom:1px;
  transition:color .24s var(--jy-ease),border-color .24s var(--jy-ease);
}
.jy-footer a:hover{color:#fff;border-bottom-color:var(--jy-primary);}
.jy-footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- Reveal ---------- */
.jy-reveal{
  opacity:0;transform:translateY(12px);
  transition:opacity .32s var(--jy-ease),transform .32s var(--jy-ease);
}
.jy-reveal.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .jy-hero-narrow h1{font-size:52px;}
}
@media (max-width:1023px){
  :root{--jy-sec:80px;}
  .jy-header-inner{display:flex;justify-content:space-between;}
  .jy-nav-left{display:none;}
  .jy-nav-right .jy-nav-link,.jy-header-cta{display:none;}
  .jy-burger{display:inline-flex;}
  .jy-logo{justify-self:flex-start;}
  .jy-logo-text{font-size:16px;}
  .jy-hero-narrow{padding:120px 0 40px;}
  .jy-hero-grid{grid-template-columns:minmax(0,1fr);gap:36px;}
  .jy-hero-narrow h1{font-size:38px;line-height:1.12;}
  .jy-hero-media{aspect-ratio:16/9;order:2;}
  .jy-hero-media::before{display:none;}
  .jy-anchorbar-wrap{top:62px;}
  .jy-group-title h2{font-size:26px;}
  .jy-section-head h2{font-size:30px;}
  .jy-faq-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .jy-faq-side h2{font-size:30px;}
  .jy-cta-inner{grid-template-columns:minmax(0,1fr);gap:28px;}
  .jy-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
  .jy-card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .jy-related{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  :root{--jy-sec:64px;}
  .jy-container{padding-left:18px;padding-right:18px;}
  .grid-container.jy-container{padding-left:18px;padding-right:18px;}
  .jy-hero-narrow{padding:104px 0 32px;}
  .jy-hero-narrow h1{font-size:34px;}
  .jy-hero-sub{font-size:16px;}
  .jy-hero-actions .jy-btn{width:100%;}
  .jy-group-head{grid-template-columns:minmax(0,1fr);gap:12px;}
  .jy-group-num{font-size:34px;}
  .jy-section-head h2{font-size:26px;}
  .jy-group-title h2{font-size:23px;}
  .jy-points{padding:28px;}
  .jy-points ul{grid-template-columns:minmax(0,1fr);}
  .jy-points h2{font-size:23px;}
  .jy-cta{padding:64px 0;}
  .jy-cta h2{font-size:26px;}
  .jy-footer{padding:56px 0 24px;}
  .jy-footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:639px){
  .jy-card-grid{grid-template-columns:minmax(0,1fr);}
  .jy-related{grid-template-columns:minmax(0,1fr);}
  .jy-footer-grid{grid-template-columns:minmax(0,1fr);}
  .jy-hero-media{aspect-ratio:16/9;}
}
@media (max-width:420px){
  .jy-hero-narrow h1{font-size:30px;}
  .jy-anchorbar{padding:12px 0;}
  .jy-pill{padding:7px 14px;font-size:13px;}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .jy-reveal{opacity:1;transform:none;transition:none;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}

/* roulang page: article */
:root{
  --jy-orange:#E2452A;
  --jy-orange-dark:#C2361F;
  --jy-ink:#123A33;
  --jy-dark:#101413;
  --jy-bg:#F7F5F1;
  --jy-white:#FFFFFF;
  --jy-border:#E4E0D8;
  --jy-text:#141716;
  --jy-muted:#5A615E;
  --jy-faint:#8A918D;
  --jy-r-sm:6px;
  --jy-r:14px;
  --jy-r-lg:24px;
  --jy-sh-1:0 1px 2px rgba(16,20,19,.05);
  --jy-sh-2:0 18px 40px -16px rgba(16,20,19,.18);
  --jy-ease:cubic-bezier(.22,.61,.36,1);
  --jy-font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --jy-serif:Georgia,"Times New Roman",ui-serif,serif;
  --jy-header-h:76px;
  --jy-sec:112px;
}
@media (max-width:1023px){:root{--jy-header-h:64px;--jy-sec:80px;}}
@media (max-width:767px){:root{--jy-sec:56px;}}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:var(--jy-header-h);
  font-family:var(--jy-font);
  font-size:16px;
  line-height:1.85;
  color:var(--jy-text);
  background:var(--jy-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
body.jy-locked{overflow:hidden;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:rgba(226,69,42,.18);}

.jy-container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
@media (max-width:640px){.jy-container{padding-left:18px;padding-right:18px;}}

/* ---------- header ---------- */
.jy-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:var(--jy-header-h);
  display:flex;align-items:center;
  background:rgba(247,245,241,.86);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:height .25s var(--jy-ease),background .25s var(--jy-ease),border-color .25s var(--jy-ease);
}
.jy-header.is-scrolled{height:62px;background:rgba(255,255,255,.95);border-bottom-color:var(--jy-border);}
.jy-header-inner{
  width:100%;max-width:1200px;margin:0 auto;padding:0 24px;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;
}
.jy-nav{display:flex;align-items:center;gap:26px;}
.jy-nav-left{justify-content:flex-start;}
.jy-nav-right{justify-content:flex-end;}
.jy-nav-link{
  position:relative;padding:6px 0;font-size:15px;color:var(--jy-muted);
  transition:color .2s var(--jy-ease);white-space:nowrap;
}
.jy-nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--jy-orange);
  transition:width .28s var(--jy-ease);
}
.jy-nav-link:hover{color:var(--jy-text);}
.jy-nav-link:hover::after{width:100%;}
.jy-nav-link.is-active{color:var(--jy-text);}
.jy-nav-link.is-active::after{width:100%;height:2px;}
.jy-logo{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.jy-logo-mark{
  position:relative;width:28px;height:28px;border-radius:8px;background:var(--jy-orange);flex:0 0 auto;
  box-shadow:0 6px 14px -8px rgba(226,69,42,.9);
}
.jy-logo-mark::after{
  content:"";position:absolute;inset:8px;background:#fff;border-radius:2px;
}
.jy-logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}

.jy-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--jy-r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:background .2s var(--jy-ease),color .2s var(--jy-ease),border-color .2s var(--jy-ease),transform .2s var(--jy-ease),box-shadow .2s var(--jy-ease);
}
.jy-btn-primary{background:var(--jy-orange);color:#fff;}
.jy-btn-primary:hover{background:var(--jy-orange-dark);transform:translateY(-1px);}
.jy-btn-ghost{border-color:var(--jy-orange);color:var(--jy-orange);background:transparent;}
.jy-btn-ghost:hover{background:rgba(226,69,42,.08);transform:translateY(-1px);}
.jy-btn-sm{padding:10px 18px;font-size:14px;}
.jy-btn:focus-visible{outline:2px solid var(--jy-orange);outline-offset:2px;box-shadow:0 0 0 4px rgba(226,69,42,.12);}
.jy-link-plain{
  color:var(--jy-orange);font-weight:600;font-size:15px;position:relative;padding-bottom:2px;
}
.jy-link-plain::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--jy-orange);transition:width .28s var(--jy-ease);}
.jy-link-plain:hover::after{width:100%;}
.jy-link-plain:focus-visible{outline:2px solid var(--jy-orange);outline-offset:3px;border-radius:2px;}

.jy-burger{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--jy-r-sm);
  border:1px solid var(--jy-border);background:#fff;color:var(--jy-text);
  font-size:17px;cursor:pointer;transition:border-color .2s var(--jy-ease),color .2s var(--jy-ease);
}
.jy-burger:hover{border-color:rgba(226,69,42,.5);color:var(--jy-orange);}
.jy-burger:focus-visible{outline:2px solid var(--jy-orange);outline-offset:2px;}

@media (max-width:1023px){
  .jy-header-inner{grid-template-columns:1fr auto;padding:0 18px;}
  .jy-nav-left{display:none;}
  .jy-nav-right{justify-content:flex-end;gap:12px;}
  .jy-nav-right .jy-nav-link,.jy-header-cta{display:none;}
  .jy-logo{justify-self:start;}
  .jy-burger{display:inline-flex;}
}

/* ---------- drawer ---------- */
.jy-backdrop{
  position:fixed;inset:0;background:rgba(16,20,19,.42);z-index:85;
  opacity:0;visibility:hidden;transition:opacity .3s var(--jy-ease),visibility .3s var(--jy-ease);
}
.jy-backdrop.is-open{opacity:1;visibility:visible;}
.jy-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(420px,100%);z-index:90;
  background:#fff;display:flex;flex-direction:column;padding:20px 24px 28px;
  transform:translateX(100%);transition:transform .32s var(--jy-ease);
  box-shadow:var(--jy-sh-2);
}
.jy-drawer.is-open{transform:translateX(0);}
.jy-drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--jy-border);}
.jy-drawer-close{
  width:40px;height:40px;border-radius:var(--jy-r-sm);border:1px solid var(--jy-border);background:#fff;
  color:var(--jy-text);cursor:pointer;font-size:16px;
}
.jy-drawer-close:hover{border-color:rgba(226,69,42,.5);color:var(--jy-orange);}
.jy-drawer-nav{flex:1;overflow-y:auto;padding-top:6px;}
.jy-drawer-nav a{display:block;font-size:20px;font-weight:600;padding:16px 0;border-bottom:1px solid var(--jy-border);transition:color .2s var(--jy-ease);}
.jy-drawer-nav a:hover,.jy-drawer-nav a.is-active{color:var(--jy-orange);}
.jy-drawer-cta{display:block;width:100%;text-align:center;margin-top:20px;}

/* ---------- article layout ---------- */
.jy-main{display:block;}
.jy-breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin:28px 0 0;font-size:13px;color:var(--jy-faint);
}
.jy-breadcrumb a{color:var(--jy-faint);transition:color .2s var(--jy-ease);}
.jy-breadcrumb a:hover{color:var(--jy-orange);}
.jy-breadcrumb .jy-sep{color:#C6C1B8;}
.jy-breadcrumb .is-current{color:var(--jy-faint);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.jy-article-head{padding:22px 0 30px;border-bottom:1px solid var(--jy-border);}
.jy-badge{
  display:inline-flex;align-items:center;
  padding:5px 12px;border:1px solid rgba(226,69,42,.5);border-radius:999px;
  color:var(--jy-orange);font-size:13px;letter-spacing:.06em;
}
.jy-article-head h1{
  font-size:40px;line-height:1.18;letter-spacing:-.02em;font-weight:700;
  margin:18px 0 18px;max-width:900px;
}
.jy-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--jy-faint);}
.jy-meta .jy-meta-item{display:inline-flex;align-items:center;gap:6px;}
.jy-meta .jy-divider{width:1px;height:12px;background:var(--jy-border);display:inline-block;}

.jy-article-layout{
  display:grid;grid-template-columns:minmax(0,720px) 200px;
  gap:100px;justify-content:center;
  padding:52px 0 8px;
}

.jy-toc-toggle{
  display:none;align-items:center;gap:8px;width:100%;
  padding:12px 16px;margin-bottom:20px;border:1px solid var(--jy-border);border-radius:var(--jy-r-sm);
  background:#fff;color:var(--jy-text);font-size:15px;font-weight:600;cursor:pointer;text-align:left;
}
.jy-toc-toggle:hover{border-color:rgba(226,69,42,.5);color:var(--jy-orange);}

.jy-toc{position:sticky;top:96px;align-self:start;max-height:calc(100vh - 150px);overflow:auto;padding-top:6px;}
.jy-toc-title{font-size:13px;letter-spacing:.14em;color:var(--jy-faint);margin-bottom:14px;}
.jy-toc ul{border-left:1px solid var(--jy-border);}
.jy-toc a{
  display:block;padding:7px 0 7px 14px;margin-left:-1px;border-left:2px solid transparent;
  font-size:14px;line-height:1.6;color:var(--jy-muted);transition:color .2s var(--jy-ease),border-color .2s var(--jy-ease);
}
.jy-toc a:hover{color:var(--jy-text);}
.jy-toc a.is-active{color:var(--jy-orange);border-left-color:var(--jy-orange);}

/* ---------- article body ---------- */
.jy-article-body{font-size:16px;line-height:1.9;max-width:720px;}
.jy-article-body > * + *{margin-top:22px;}
.jy-article-body p{color:var(--jy-text);}
.jy-article-body h2{
  position:relative;padding-left:16px;margin-top:44px;
  font-size:28px;line-height:1.35;letter-spacing:-.01em;font-weight:700;
}
.jy-article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:2px;background:var(--jy-orange);
}
.jy-article-body h3{font-size:20px;line-height:1.55;font-weight:700;margin-top:30px;}
.jy-article-body ul > li,.jy-article-body ol > li{position:relative;padding-left:24px;margin-top:10px;line-height:1.8;}
.jy-article-body ul > li::before{
  content:"";position:absolute;left:5px;top:.74em;width:6px;height:6px;border-radius:50%;background:var(--jy-orange);
}
.jy-article-body ol{counter-reset:jy-li;}
.jy-article-body ol > li{counter-increment:jy-li;}
.jy-article-body ol > li::before{
  content:counter(jy-li) ".";position:absolute;left:0;top:0;color:var(--jy-orange);
  font-family:var(--jy-serif);font-weight:700;
}
.jy-article-body blockquote{
  padding:20px 22px;border-left:3px solid var(--jy-orange);border-radius:0 var(--jy-r) var(--jy-r) 0;
  background:var(--jy-bg);color:var(--jy-muted);line-height:1.8;
}
.jy-article-body img{border-radius:var(--jy-r);margin-left:auto;margin-right:auto;}
.jy-article-body figure{margin:28px 0;}
.jy-article-body figcaption{font-size:13px;color:var(--jy-faint);text-align:center;margin-top:10px;}
.jy-article-body a{color:var(--jy-orange);border-bottom:1px dashed rgba(226,69,42,.6);}
.jy-article-body a:hover{border-bottom-style:solid;}
.jy-article-body strong{font-weight:700;}
.jy-article-body hr{border:0;border-top:1px solid var(--jy-border);margin:36px 0;}
.jy-article-body .jy-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.jy-article-body table{width:100%;min-width:520px;border-collapse:collapse;font-size:15px;}
.jy-article-body th{background:var(--jy-dark);color:#fff;text-align:left;padding:12px 14px;font-weight:600;}
.jy-article-body td{padding:12px 14px;border-bottom:1px solid var(--jy-border);}
.jy-article-body tbody tr:nth-child(even){background:var(--jy-bg);}

.jy-empty{
  padding:56px 32px;border-radius:var(--jy-r);background:rgba(226,69,42,.06);text-align:center;
}
.jy-empty p{font-size:16px;color:var(--jy-muted);margin-bottom:20px;}

.jy-article-foot{margin-top:56px;padding-top:36px;border-top:1px solid var(--jy-border);}
.jy-related-title{font-size:24px;font-weight:700;letter-spacing:-.01em;margin-bottom:20px;}
.jy-related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.jy-card{
  display:block;background:#fff;border:1px solid var(--jy-border);border-radius:var(--jy-r);
  padding:0;overflow:hidden;box-shadow:var(--jy-sh-1);
  transition:border-color .24s var(--jy-ease),box-shadow .24s var(--jy-ease),transform .24s var(--jy-ease);
}
.jy-card:hover{border-color:rgba(226,69,42,.4);box-shadow:var(--jy-sh-2);transform:translateY(-2px);}
.jy-card-media{aspect-ratio:16/10;overflow:hidden;background:rgba(226,69,42,.08);}
.jy-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .34s var(--jy-ease);}
.jy-card:hover .jy-card-media img{transform:scale(1.03);}
.jy-card-body{padding:18px 20px 22px;}
.jy-card-body h3{font-size:17px;line-height:1.5;font-weight:700;margin-bottom:8px;}
.jy-card-body p{font-size:14px;color:var(--jy-muted);line-height:1.7;}
.jy-card-tag{
  display:inline-flex;margin-bottom:10px;padding:3px 10px;border:1px solid rgba(226,69,42,.45);
  border-radius:999px;font-size:12px;letter-spacing:.06em;color:var(--jy-orange);
}
.jy-back-row{margin-top:32px;}

/* ---------- cta ---------- */
.jy-cta-section{padding:var(--jy-sec) 0 0;}
.jy-cta-band{
  background:rgba(226,69,42,.06);border-radius:var(--jy-r-lg);
  padding:56px 32px;text-align:center;
}
.jy-cta-band h2{font-size:30px;line-height:1.3;letter-spacing:-.01em;font-weight:700;}
.jy-cta-band p{margin:14px auto 28px;max-width:600px;color:var(--jy-muted);font-size:16px;}

/* ---------- footer ---------- */
.jy-footer{
  margin-top:var(--jy-sec);
  background:var(--jy-dark);color:rgba(255,255,255,.86);
  padding:72px 0 28px;
}
.jy-footer .jy-logo-text{color:#fff;}
.jy-footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
}
.jy-footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:300px;}
.jy-footer-contact{margin-top:12px !important;}
.jy-footer h4{font-size:14px;letter-spacing:.1em;color:rgba(255,255,255,.55);font-weight:600;margin-bottom:16px;}
.jy-footer ul li{margin-bottom:11px;}
.jy-footer a{
  position:relative;font-size:14px;color:rgba(255,255,255,.72);
  transition:color .2s var(--jy-ease);
}
.jy-footer a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--jy-orange);
  transition:width .28s var(--jy-ease);
}
.jy-footer a:hover{color:#fff;}
.jy-footer a:hover::after{width:100%;}
.jy-footer a:focus-visible{outline:2px solid var(--jy-orange);outline-offset:3px;}
.jy-footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- reveal ---------- */
html.js .jy-reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--jy-ease),transform .32s var(--jy-ease);}
html.js .jy-reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  html.js .jy-reveal{opacity:1;transform:none;transition:none;}
  .jy-btn,.jy-card,.jy-nav-link::after,.jy-footer a::after{transition:none !important;}
  .jy-btn:hover,.jy-card:hover{transform:none;}
  .jy-card:hover .jy-card-media img{transform:none;}
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .jy-article-layout{grid-template-columns:minmax(0,1fr);gap:0;max-width:760px;margin:0 auto;padding-top:40px;}
  .jy-toc-toggle{display:flex;}
  .jy-toc{
    position:static;display:none;max-height:none;overflow:visible;padding:18px 20px;margin-bottom:26px;
    background:#fff;border:1px solid var(--jy-border);border-radius:var(--jy-r);
  }
  body.jy-toc-open .jy-toc{display:block;}
  body.jy-toc-open .jy-toc ul{border-left:0;}
  body.jy-toc-open .jy-toc a{padding-left:0;border-left:0;}
  body.jy-toc-open .jy-toc a.is-active{color:var(--jy-orange);}
}
@media (min-width:1200px){
  .jy-toc-toggle{display:none !important;}
}
@media (max-width:1023px){
  .jy-article-head h1{font-size:30px;}
  .jy-related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .jy-footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .jy-cta-band{padding:44px 24px;}
}
@media (max-width:767px){
  .jy-article-head{padding:16px 0 24px;}
  .jy-article-head h1{font-size:26px;margin:14px 0 16px;}
  .jy-article-body{font-size:16px;line-height:1.85;}
  .jy-article-body h2{font-size:23px;margin-top:36px;}
  .jy-article-body h3{font-size:18px;}
  .jy-related-grid{grid-template-columns:minmax(0,1fr);}
  .jy-cta-band h2{font-size:24px;}
  .jy-footer{padding-top:56px;}
  .jy-footer-grid{grid-template-columns:1fr;}
  .jy-footer-brand p{max-width:none;}
}
@media (max-width:520px){
  .jy-breadcrumb{font-size:12px;}
  .jy-meta{font-size:13px;gap:10px;}
  .jy-btn{padding:12px 22px;font-size:14px;}
  .jy-empty{padding:40px 20px;}
}

/* roulang page: category2 */
:root{
  --jy-primary:#E2452A;
  --jy-primary-dark:#C43A20;
  --jy-primary-soft:rgba(226,69,42,.08);
  --jy-primary-line:rgba(226,69,42,.40);
  --jy-secondary:#123A33;
  --jy-dark:#101413;
  --jy-bg:#F7F5F1;
  --jy-white:#FFFFFF;
  --jy-border:#E4E0D8;
  --jy-text:#141716;
  --jy-muted:#5A615E;
  --jy-faint:#8A918D;
  --jy-r-btn:6px;
  --jy-r-card:14px;
  --jy-r-hero:24px;
  --jy-sh-1:0 1px 2px rgba(16,20,19,.05);
  --jy-sh-2:0 18px 40px -16px rgba(16,20,19,.18);
  --jy-ease:cubic-bezier(.22,.61,.36,1);
  --jy-dur:.32s;
  --jy-font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --jy-serif:Georgia,"Times New Roman",ui-serif,serif;
  --jy-header-h:76px;
  --jy-gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--jy-font);
  font-size:16px;
  line-height:1.85;
  color:var(--jy-text);
  background:var(--jy-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus{outline:none}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--jy-primary);
  outline-offset:3px;
  box-shadow:0 0 0 4px rgba(226,69,42,.12);
  border-radius:4px;
}
.jy-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.jy-section{padding:112px 0}
.jy-section-tight{padding:72px 0}

/* ---------- Header ---------- */
.jy-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(247,245,241,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background var(--jy-dur) var(--jy-ease),border-color var(--jy-dur) var(--jy-ease),box-shadow var(--jy-dur) var(--jy-ease);
}
.jy-header.is-scrolled{background:#fff;border-bottom-color:var(--jy-border);box-shadow:var(--jy-sh-1)}
.jy-header-inner{
  max-width:1200px;margin:0 auto;height:var(--jy-header-h);
  padding:0 24px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;
  transition:height var(--jy-dur) var(--jy-ease);
}
.jy-header.is-scrolled .jy-header-inner{height:62px}
.jy-nav-side{display:flex;align-items:center;gap:26px}
.jy-nav-left{justify-content:flex-start}
.jy-nav-right{justify-content:flex-end;gap:20px}
.jy-nav-link{
  position:relative;font-size:15px;color:var(--jy-text);padding:6px 0;
  transition:color .22s var(--jy-ease);white-space:nowrap;
}
.jy-nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--jy-primary);transition:width .28s var(--jy-ease);
}
.jy-nav-link:hover{color:var(--jy-primary)}
.jy-nav-link:hover::after{width:100%}
.jy-nav-link.is-active{color:var(--jy-primary)}
.jy-nav-link.is-active::after{width:100%;height:2px}
.jy-logo{display:inline-flex;align-items:center;gap:10px;font-weight:700}
.jy-logo-mark{
  width:28px;height:28px;border-radius:8px;background:var(--jy-primary);
  position:relative;display:inline-block;flex:0 0 auto;
}
.jy-logo-mark::before{
  content:"";position:absolute;left:8px;top:8px;width:12px;height:12px;
  border-radius:3px;background:#fff;
}
.jy-logo-mark::after{
  content:"";position:absolute;right:5px;bottom:5px;width:6px;height:6px;
  border-radius:2px;background:rgba(255,255,255,.55);
}
.jy-logo-text{font-size:19px;letter-spacing:-.01em;color:var(--jy-text);white-space:nowrap}
.jy-burger{
  display:none;width:42px;height:42px;border-radius:8px;border:1px solid var(--jy-border);
  background:#fff;align-items:center;justify-content:center;font-size:17px;color:var(--jy-text);
}
.jy-burger:hover{border-color:var(--jy-primary-line);color:var(--jy-primary)}

/* ---------- Buttons ---------- */
.jy-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--jy-r-btn);font-size:15px;font-weight:600;
  line-height:1;border:1px solid transparent;white-space:nowrap;
  transition:background .22s var(--jy-ease),color .22s var(--jy-ease),border-color .22s var(--jy-ease),transform .22s var(--jy-ease),box-shadow .22s var(--jy-ease);
}
.jy-btn i{font-size:14px}
.jy-btn-primary{background:var(--jy-primary);color:#fff}
.jy-btn-primary:hover{background:var(--jy-primary-dark);transform:translateY(-1px);color:#fff}
.jy-btn-ghost{border-color:var(--jy-primary);color:var(--jy-primary);background:transparent}
.jy-btn-ghost:hover{background:var(--jy-primary-soft);transform:translateY(-1px)}
.jy-btn-dark{background:var(--jy-secondary);color:#fff}
.jy-btn-dark:hover{background:#0d2c26;transform:translateY(-1px);color:#fff}
.jy-btn-sm{padding:10px 18px;font-size:14px}
.jy-btn-block{width:100%}
.jy-btn-text{color:var(--jy-primary);font-weight:600;padding:6px 0;display:inline-flex;align-items:center;gap:6px}
.jy-btn-text span{position:relative}
.jy-btn-text span::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;
  background:var(--jy-primary);transition:width .28s var(--jy-ease);
}
.jy-btn-text:hover span::after{width:100%}

/* ---------- Badge / eyebrow ---------- */
.jy-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--jy-primary);font-weight:600;
}
.jy-eyebrow::before{content:"";width:22px;height:1px;background:var(--jy-primary);display:inline-block}
.jy-badge{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;letter-spacing:.06em;
  padding:5px 12px;border-radius:999px;border:1px solid var(--jy-primary-line);
  color:var(--jy-primary);background:rgba(255,255,255,.7);
}
.jy-badge-dark{border-color:rgba(255,255,255,.28);color:#fff;background:rgba(255,255,255,.08)}

/* ---------- Breadcrumb ---------- */
.jy-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--jy-faint)}
.jy-crumb a{color:var(--jy-muted);transition:color .2s}
.jy-crumb a:hover{color:var(--jy-primary)}
.jy-crumb .sep{color:#C9C4B9}
.jy-crumb .current{color:var(--jy-faint)}

/* ---------- Category hero ---------- */
.jy-cat-hero{
  padding:calc(var(--jy-header-h) + 68px) 0 0;
  background:var(--jy-bg);
  border-bottom:1px solid var(--jy-border);
}
.jy-cat-hero-grid{display:grid;grid-template-columns:1fr 40%;gap:56px;align-items:center}
.jy-cat-hero h1{
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.1;letter-spacing:-.02em;margin:16px 0 18px;font-weight:700;
}
.jy-cat-hero .jy-hero-sub{font-size:17px;color:var(--jy-muted);line-height:1.85;max-width:600px}
.jy-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.jy-hero-note{margin-top:14px;font-size:13px;color:var(--jy-faint);line-height:1.7}
.jy-cat-hero-media{
  border-radius:var(--jy-r-hero);overflow:hidden;aspect-ratio:3/2;background:var(--jy-primary-soft);
  box-shadow:var(--jy-sh-2);position:relative;
}
.jy-cat-hero-media img{width:100%;height:100%;object-fit:cover}
.jy-anchor-wrap{padding:36px 0 30px}
.jy-anchor-bar{
  display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.jy-anchor-bar::-webkit-scrollbar{display:none}
.jy-anchor{
  flex:0 0 auto;padding:9px 18px;border-radius:999px;border:1px solid var(--jy-border);
  background:#fff;font-size:14px;color:var(--jy-muted);transition:all .22s var(--jy-ease);
}
.jy-anchor:hover{border-color:var(--jy-primary-line);color:var(--jy-primary)}
.jy-anchor.is-active{background:var(--jy-primary);border-color:var(--jy-primary);color:#fff}

/* ---------- Lead ---------- */
.jy-lead{
  display:grid;grid-template-columns:180px 1fr;gap:40px;align-items:start;
  background:#fff;border:1px solid var(--jy-border);border-radius:var(--jy-r-card);
  padding:36px 40px;box-shadow:var(--jy-sh-1);
}
.jy-lead-label{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--jy-primary);font-weight:600}
.jy-lead p{font-size:16.5px;color:var(--jy-muted);line-height:1.9}

/* ---------- Group ---------- */
.jy-group{padding-top:96px;margin-top:96px;border-top:1px solid var(--jy-border)}
.jy-group:first-of-type{margin-top:0}
.jy-group-head{display:grid;grid-template-columns:96px 1fr;gap:32px;align-items:start;margin-bottom:44px}
.jy-group-num{
  font-family:var(--jy-serif);font-size:44px;line-height:1;color:var(--jy-primary);font-weight:700;
}
.jy-group-head h2{font-size:clamp(24px,2.8vw,36px);line-height:1.2;letter-spacing:-.015em;font-weight:700}
.jy-group-head p{margin-top:12px;color:var(--jy-muted);font-size:16px;max-width:720px}

/* ---------- Card grid ---------- */
.jy-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--jy-gap)}
.jy-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--jy-gap)}
.jy-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.jy-card{
  display:flex;flex-direction:column;background:var(--jy-white);border:1px solid var(--jy-border);
  border-radius:var(--jy-r-card);overflow:hidden;box-shadow:var(--jy-sh-1);
  transition:border-color .24s var(--jy-ease),box-shadow .24s var(--jy-ease),transform .24s var(--jy-ease);
}
.jy-card:hover{border-color:var(--jy-primary-line);box-shadow:var(--jy-sh-2);transform:translateY(-2px)}
.jy-card-media{aspect-ratio:16/10;overflow:hidden;background:var(--jy-primary-soft)}
.jy-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--jy-ease)}
.jy-card:hover .jy-card-media img{transform:scale(1.03)}
.jy-card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.jy-card-body h3{font-size:19px;line-height:1.45;font-weight:700}
.jy-card-body p{font-size:14.5px;color:var(--jy-muted);line-height:1.8}
.jy-card-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.jy-card-link{font-size:14px;color:var(--jy-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.jy-card-link i{transition:transform .22s var(--jy-ease)}
.jy-card:hover .jy-card-link i{transform:translateX(4px)}

/* ---------- Steps ---------- */
.jy-steps{border-top:1px solid var(--jy-border)}
.jy-step{
  display:grid;grid-template-columns:88px 1fr auto;gap:28px;align-items:start;
  padding:26px 0;border-bottom:1px solid var(--jy-border);
  transition:transform .26s var(--jy-ease);
}
.jy-step:hover{transform:translateX(4px)}
.jy-step:hover .jy-step-num{color:var(--jy-primary)}
.jy-step-num{font-family:var(--jy-serif);font-size:26px;color:var(--jy-faint);font-weight:700;line-height:1.3;transition:color .24s var(--jy-ease)}
.jy-step h3{font-size:20px;font-weight:700;line-height:1.5}
.jy-step p{margin-top:8px;color:var(--jy-muted);font-size:15px;max-width:760px}
.jy-step-tag{font-size:13px;color:var(--jy-faint);padding-top:6px;white-space:nowrap}

/* ---------- FAQ ---------- */
.jy-faq{display:grid;grid-template-columns:320px 1fr;gap:56px;align-items:start}
.jy-faq-side h2{font-size:clamp(24px,2.6vw,32px);line-height:1.22;font-weight:700;letter-spacing:-.015em}
.jy-faq-side p{margin-top:14px;color:var(--jy-muted);font-size:15px}
.jy-faq-list{border-top:1px solid var(--jy-border)}
.jy-faq-item{border-bottom:1px solid var(--jy-border);position:relative}
.jy-faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 8px 20px 0;font-size:17px;font-weight:600;line-height:1.6;
  transition:color .22s var(--jy-ease);
}
.jy-faq-item summary::-webkit-details-marker{display:none}
.jy-faq-item summary:hover{color:var(--jy-primary)}
.jy-faq-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--jy-border);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;color:var(--jy-muted);
  transition:transform .3s var(--jy-ease),background .24s var(--jy-ease),color .24s var(--jy-ease),border-color .24s var(--jy-ease);
}
.jy-faq-item[open] .jy-faq-ico{transform:rotate(45deg);background:var(--jy-primary);border-color:var(--jy-primary);color:#fff}
.jy-faq-item[open] summary{color:var(--jy-primary)}
.jy-faq-item[open]::before{
  content:"";position:absolute;left:-16px;top:16px;bottom:16px;width:3px;background:var(--jy-primary);border-radius:2px;
}
.jy-faq-body{padding:0 40px 24px 0;color:var(--jy-muted);font-size:15px;line-height:1.85}
.jy-faq-body p+p{margin-top:14px}

/* ---------- Key points ---------- */
.jy-keypoints{
  background:var(--jy-primary-soft);border:1px solid rgba(226,69,42,.16);border-radius:var(--jy-r-card);
  padding:44px 48px;
}
.jy-keypoints h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;letter-spacing:-.015em;margin-bottom:24px}
.jy-keypoints ul{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 40px}
.jy-keypoints li{position:relative;padding-left:18px;font-size:15.5px;color:var(--jy-text);line-height:1.8}
.jy-keypoints li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--jy-primary);
}

/* ---------- Cross links ---------- */
.jy-crosslink{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.jy-crosslink a{
  display:flex;flex-direction:column;gap:6px;padding:22px 24px;background:#fff;
  border:1px solid var(--jy-border);border-radius:var(--jy-r-card);
  transition:border-color .24s var(--jy-ease),box-shadow .24s var(--jy-ease),transform .24s var(--jy-ease);
}
.jy-crosslink a:hover{border-color:var(--jy-primary-line);box-shadow:var(--jy-sh-2);transform:translateY(-2px)}
.jy-crosslink strong{font-size:16px;font-weight:700}
.jy-crosslink span{font-size:13.5px;color:var(--jy-faint)}

/* ---------- CTA ---------- */
.jy-cta{
  background:var(--jy-white);border-top:1px solid var(--jy-border);border-bottom:1px solid var(--jy-border);
}
.jy-cta-inner{
  display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center;
}
.jy-cta h2{font-size:clamp(26px,3vw,38px);line-height:1.18;letter-spacing:-.02em;font-weight:700}
.jy-cta p{margin-top:16px;color:var(--jy-muted);font-size:16px;max-width:520px}
.jy-form{background:var(--jy-bg);border:1px solid var(--jy-border);border-radius:var(--jy-r-card);padding:28px}
.jy-field{margin-bottom:18px}
.jy-field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px;color:var(--jy-muted)}
.jy-field input,.jy-field select,.jy-field textarea{
  width:100%;height:44px;padding:0 14px;border:1px solid var(--jy-border);border-radius:var(--jy-r-btn);
  background:#fff;font-size:15px;color:var(--jy-text);transition:border-color .2s var(--jy-ease),box-shadow .2s var(--jy-ease);
}
.jy-field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.jy-field input::placeholder,.jy-field textarea::placeholder{color:#A9AFAB}
.jy-field input:focus,.jy-field select:focus,.jy-field textarea:focus{
  border-color:var(--jy-primary);box-shadow:0 0 0 4px rgba(226,69,42,.12);
}
.jy-form-hint{font-size:12.5px;color:var(--jy-faint);margin-top:10px;line-height:1.7}

/* ---------- Footer ---------- */
.jy-footer{background:var(--jy-dark);color:rgba(255,255,255,.72);padding:80px 0 32px}
.jy-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px}
.jy-footer .jy-logo-text{color:#fff}
.jy-footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.9;max-width:340px}
.jy-footer-contact{margin-top:14px;font-size:14px}
.jy-footer h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700;letter-spacing:.02em}
.jy-footer ul li{margin-bottom:12px}
.jy-footer a{color:rgba(255,255,255,.72);font-size:14.5px;position:relative;transition:color .22s var(--jy-ease)}
.jy-footer a::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--jy-primary);
  transition:width .28s var(--jy-ease);
}
.jy-footer a:hover{color:#fff}
.jy-footer a:hover::after{width:100%}
.jy-footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.55);
}

/* ---------- Drawer ---------- */
.jy-drawer{
  position:fixed;inset:0;z-index:120;background:var(--jy-bg);
  transform:translateX(100%);transition:transform .34s var(--jy-ease);
  display:flex;flex-direction:column;padding:20px 24px 24px;overflow-y:auto;
}
.jy-drawer.is-open{transform:translateX(0)}
.jy-drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--jy-border)}
.jy-drawer-close{
  width:42px;height:42px;border-radius:8px;border:1px solid var(--jy-border);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;
}
.jy-drawer-nav{margin-top:12px}
.jy-drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;font-size:20px;font-weight:600;
  padding:18px 0;border-bottom:1px solid var(--jy-border);color:var(--jy-text);
}
.jy-drawer-nav a i{font-size:14px;color:var(--jy-faint)}
.jy-drawer-nav a.is-active{color:var(--jy-primary)}
.jy-drawer-cta{margin-top:auto;padding-top:28px}
body.jy-locked{overflow:hidden}

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

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .jy-nav-side{display:none}
  .jy-burger{display:inline-flex}
  .jy-header-inner{grid-template-columns:auto 1fr auto;gap:12px}
  .jy-logo{justify-self:center}
  .jy-header-inner::before{content:"";width:42px;height:42px;display:block}
  .jy-cat-hero-grid{grid-template-columns:1fr;gap:36px}
  .jy-cat-hero-media{order:2;aspect-ratio:16/9;max-width:640px}
  .jy-section{padding:80px 0}
  .jy-group{padding-top:72px;margin-top:72px}
  .jy-grid-3{grid-template-columns:repeat(2,1fr)}
  .jy-grid-4{grid-template-columns:repeat(2,1fr)}
  .jy-faq{grid-template-columns:1fr;gap:32px}
  .jy-crosslink{grid-template-columns:repeat(2,1fr)}
  .jy-cta-inner{grid-template-columns:1fr;gap:36px}
  .jy-footer-grid{grid-template-columns:1fr 1fr;gap:40px}
  .jy-lead{grid-template-columns:1fr;gap:16px}
}
@media (max-width:768px){
  .jy-header-inner{padding:0 16px}
  .jy-container{padding-left:16px;padding-right:16px}
  .jy-logo-text{font-size:17px}
  .jy-section{padding:64px 0}
  .jy-section-tight{padding:52px 0}
  .jy-cat-hero{padding-top:calc(var(--jy-header-h) + 44px)}
  .jy-cat-hero h1{font-size:30px}
  .jy-group-head{grid-template-columns:1fr;gap:14px}
  .jy-group-num{font-size:32px}
  .jy-grid-3,.jy-grid-2,.jy-grid-4{grid-template-columns:1fr}
  .jy-step{grid-template-columns:56px 1fr;gap:16px}
  .jy-step-tag{display:none}
  .jy-keypoints{padding:32px 22px}
  .jy-keypoints ul{grid-template-columns:1fr;gap:12px}
  .jy-footer{padding:56px 0 28px}
  .jy-footer-grid{grid-template-columns:1fr;gap:34px}
  .jy-footer-bottom{flex-direction:column;gap:8px}
  .jy-crosslink{grid-template-columns:1fr}
  .jy-hero-actions .jy-btn{width:100%}
  .jy-form{padding:22px}
}
@media (max-width:520px){
  .jy-cat-hero h1{font-size:26px;line-height:1.18}
  .jy-cat-hero .jy-hero-sub{font-size:15.5px}
  .jy-group-head h2{font-size:23px}
  .jy-card-body{padding:18px}
  .jy-faq-item summary{font-size:16px;gap:14px}
  .jy-drawer-nav a{font-size:18px;padding:16px 0}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .jy-reveal{opacity:1!important;transform:none!important}
}

/* roulang page: category3 */
:root{
  --jy-primary:#E2452A;
  --jy-primary-dark:#C2361E;
  --jy-primary-08:rgba(226,69,42,.08);
  --jy-primary-12:rgba(226,69,42,.12);
  --jy-primary-40:rgba(226,69,42,.40);
  --jy-ink:#123A33;
  --jy-dark:#101413;
  --jy-bg:#F7F5F1;
  --jy-card:#FFFFFF;
  --jy-border:#E4E0D8;
  --jy-text:#141716;
  --jy-muted:#5A615E;
  --jy-weak:#8A918D;
  --jy-radius-btn:6px;
  --jy-radius-card:14px;
  --jy-radius-hero:24px;
  --jy-shadow-1:0 1px 2px rgba(16,20,19,.05);
  --jy-shadow-2:0 18px 40px -16px rgba(16,20,19,.18);
  --jy-gap-xs:8px;
  --jy-gap-sm:16px;
  --jy-gap-md:24px;
  --jy-gap-lg:40px;
  --jy-section:112px;
  --jy-ease:cubic-bezier(.22,.61,.36,1);
  --jy-font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --jy-serif:Georgia,"Times New Roman",ui-serif,serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--jy-font);
  font-size:16px;
  line-height:1.85;
  color:var(--jy-text);
  background:var(--jy-bg);
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s var(--jy-ease);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--jy-primary);
  outline-offset:2px;
  box-shadow:0 0 0 4px var(--jy-primary-12);
  border-radius:4px;
}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{list-style:none;padding:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea{font-family:inherit;font-size:15px;}

/* 容器 */
.jy-container{max-width:1200px;width:100%;margin:0 auto;padding:0 24px;}
.grid-container.jy-container{padding-left:24px;padding-right:24px;}
.jy-section{padding:var(--jy-section) 0;}
.jy-section-sm{padding:72px 0;}

/* 通用标签与标题 */
.jy-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--jy-primary);font-weight:600;margin-bottom:18px;
}
.jy-eyebrow::before{content:"";width:22px;height:2px;background:var(--jy-primary);display:block;}
.jy-h2{font-size:36px;line-height:1.2;letter-spacing:-.02em;font-weight:700;}
.jy-h3{font-size:20px;line-height:1.4;font-weight:700;}
.jy-lead{font-size:16px;color:var(--jy-muted);line-height:1.85;}
.jy-num{font-family:var(--jy-serif);font-variant-numeric:tabular-nums;}

/* 按钮 */
.jy-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--jy-radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .22s var(--jy-ease),background-color .22s var(--jy-ease),color .22s var(--jy-ease),border-color .22s var(--jy-ease),box-shadow .22s var(--jy-ease);
  white-space:nowrap;
}
.jy-btn-primary{background:var(--jy-primary);color:#fff;border:1px solid var(--jy-primary);}
.jy-btn-primary:hover{background:var(--jy-primary-dark);border-color:var(--jy-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--jy-shadow-2);}
.jy-btn-ghost{background:transparent;color:var(--jy-primary);border:1px solid var(--jy-primary);}
.jy-btn-ghost:hover{background:var(--jy-primary-08);transform:translateY(-1px);}
.jy-btn-text{color:var(--jy-primary);padding:0;font-weight:600;position:relative;}
.jy-btn-text::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--jy-primary);transition:width .28s var(--jy-ease);}
.jy-btn-text:hover::after{width:100%;}
.jy-btn-sm{padding:10px 18px;font-size:14px;}

/* 徽章 */
.jy-badge{
  display:inline-block;padding:4px 12px;border-radius:999px;
  border:1px solid var(--jy-primary);color:var(--jy-primary);
  font-size:13px;letter-spacing:.06em;line-height:1.6;
  background:#fff;
}
.jy-badge-ink{border-color:var(--jy-ink);color:var(--jy-ink);}

/* 导航 */
.jy-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(247,245,241,.94);
  border-bottom:1px solid transparent;
  transition:height .28s var(--jy-ease),background-color .28s var(--jy-ease),border-color .28s var(--jy-ease),box-shadow .28s var(--jy-ease);
}
.jy-header-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:76px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  transition:height .28s var(--jy-ease);
}
.jy-header.is-scrolled{background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(10px);border-bottom-color:var(--jy-border);box-shadow:var(--jy-shadow-1);}
.jy-header.is-scrolled .jy-header-inner{height:62px;}
.jy-nav{display:flex;align-items:center;gap:26px;}
.jy-nav-left{justify-content:flex-start;}
.jy-nav-right{justify-content:flex-end;}
.jy-nav-link{
  position:relative;font-size:15px;color:var(--jy-muted);font-weight:500;padding:6px 0;
  transition:color .22s var(--jy-ease);
}
.jy-nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--jy-primary);
  transition:width .28s var(--jy-ease);
}
.jy-nav-link:hover{color:var(--jy-text);}
.jy-nav-link:hover::after{width:100%;}
.jy-nav-link.is-active{color:var(--jy-text);font-weight:600;}
.jy-nav-link.is-active::after{width:100%;}
.jy-logo{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.jy-logo-mark{
  width:28px;height:28px;border-radius:9px;display:block;
  background:var(--jy-primary);
  position:relative;flex:0 0 28px;
}
.jy-logo-mark::after{
  content:"";position:absolute;inset:8px;border-radius:3px;background:#F7F5F1;
}
.jy-logo-text{font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--jy-text);white-space:nowrap;}
.jy-header-cta{margin-left:2px;}
.jy-burger{display:none;font-size:20px;color:var(--jy-text);padding:8px;}

/* 抽屉 */
.jy-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,380px);z-index:90;
  background:#fff;transform:translateX(102%);
  transition:transform .34s var(--jy-ease);
  display:flex;flex-direction:column;
  box-shadow:-18px 0 40px -20px rgba(16,20,19,.28);
  padding:22px 0 0;
}
.jy-drawer.is-open{transform:translateX(0);}
.jy-drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 24px 18px;border-bottom:1px solid var(--jy-border);}
.jy-drawer-close{font-size:20px;color:var(--jy-text);padding:6px 10px;}
.jy-drawer-nav{flex:1;overflow-y:auto;}
.jy-drawer-nav a{
  display:block;padding:18px 24px;font-size:20px;font-weight:600;color:var(--jy-text);
  border-bottom:1px solid var(--jy-border);
}
.jy-drawer-nav a.is-active{color:var(--jy-primary);}
.jy-drawer-foot{padding:18px 24px 26px;border-top:1px solid var(--jy-border);}
.jy-drawer-foot .jy-btn{width:100%;}
.jy-mask{
  position:fixed;inset:0;background:rgba(16,20,19,.42);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .3s var(--jy-ease),visibility .3s var(--jy-ease);
}
.jy-mask.is-open{opacity:1;visibility:visible;}
body.jy-locked{overflow:hidden;}

/* 窄 Hero */
.jy-cat-hero{padding:148px 0 0;background:var(--jy-bg);}
.jy-cat-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.jy-cat-hero h1{
  font-size:clamp(30px,4.4vw,46px);line-height:1.1;letter-spacing:-.02em;font-weight:700;
  margin-bottom:20px;
}
.jy-cat-hero p.jy-lead{max-width:560px;margin-bottom:26px;}
.jy-cat-hero-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center;}
.jy-cat-hero-media{
  border-radius:var(--jy-radius-hero);overflow:hidden;position:relative;
  aspect-ratio:3/2;box-shadow:var(--jy-shadow-1);
  background:var(--jy-card);
}
.jy-cat-hero-media img{width:100%;height:100%;object-fit:cover;}
.jy-cat-hero-media::before{
  content:"";position:absolute;left:-18px;bottom:-18px;width:120px;height:120px;
  background:var(--jy-primary-12);border-radius:20px;z-index:-1;
}
.jy-crumb{font-size:13px;color:var(--jy-weak);margin-bottom:26px;letter-spacing:.02em;}
.jy-crumb a:hover{color:var(--jy-primary);}
.jy-crumb span.sep{margin:0 8px;color:var(--jy-border);}

/* 锚点条 */
.jy-anchor-wrap{padding:40px 0 0;}
.jy-anchor-bar{
  display:flex;gap:10px;overflow-x:auto;padding:6px 0 14px;
  border-bottom:1px solid var(--jy-border);
  scrollbar-width:thin;
}
.jy-anchor{
  flex:0 0 auto;padding:10px 20px;border-radius:999px;border:1px solid var(--jy-border);
  background:#fff;font-size:14px;color:var(--jy-muted);font-weight:500;
  transition:all .22s var(--jy-ease);
}
.jy-anchor:hover{border-color:var(--jy-primary-40);color:var(--jy-primary);}
.jy-anchor.is-active{background:var(--jy-primary);border-color:var(--jy-primary);color:#fff;}

/* 导语 */
.jy-intro{padding:64px 0 0;}
.jy-intro-inner{
  background:#fff;border:1px solid var(--jy-border);border-radius:var(--jy-radius-card);
  padding:32px 36px;display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:flex-start;
  box-shadow:var(--jy-shadow-1);
}
.jy-intro-mark{
  font-family:var(--jy-serif);font-size:40px;line-height:1;color:var(--jy-primary);font-weight:700;
}
.jy-intro p{color:var(--jy-muted);font-size:16px;line-height:1.9;}

/* 内容分组 */
.jy-flow{padding:0;}
.jy-group{
  padding:96px 0 0;margin-top:96px;border-top:1px solid var(--jy-border);
}
.jy-group:first-of-type{margin-top:72px;}
.jy-group-grid{display:grid;grid-template-columns:300px 1fr;gap:56px;align-items:start;}
.jy-group-head{position:sticky;top:110px;}
.jy-group-index{
  font-family:var(--jy-serif);font-size:44px;line-height:1;color:var(--jy-primary);
  display:block;margin-bottom:16px;font-weight:700;
}
.jy-group-head h2{font-size:26px;line-height:1.3;letter-spacing:-.01em;font-weight:700;margin-bottom:12px;}
.jy-group-head p{font-size:15px;color:var(--jy-muted);line-height:1.85;}
.jy-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.jy-cards-2{grid-template-columns:repeat(2,1fr);}
.jy-card{
  background:var(--jy-card);border:1px solid var(--jy-border);border-radius:var(--jy-radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .28s var(--jy-ease),box-shadow .28s var(--jy-ease),border-color .28s var(--jy-ease);
  box-shadow:var(--jy-shadow-1);
}
.jy-card:hover{border-color:var(--jy-primary-40);box-shadow:var(--jy-shadow-2);transform:translateY(-2px);}
.jy-card-media{aspect-ratio:16/10;overflow:hidden;background:var(--jy-primary-08);}
.jy-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .42s var(--jy-ease);}
.jy-card:hover .jy-card-media img{transform:scale(1.03);}
.jy-card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.jy-card-body h3{font-size:18px;line-height:1.45;font-weight:700;letter-spacing:-.01em;}
.jy-card-body p{font-size:14px;color:var(--jy-muted);line-height:1.8;flex:1;}
.jy-card-link{
  font-size:14px;font-weight:600;color:var(--jy-primary);display:inline-flex;align-items:center;gap:6px;
}
.jy-card-link i{transition:transform .24s var(--jy-ease);font-size:12px;}
.jy-card:hover .jy-card-link i{transform:translateX(4px);}

/* 分栏要点清单 */
.jy-list-split{display:grid;grid-template-columns:1fr 1fr;gap:14px 32px;}
.jy-list-split li{
  position:relative;padding-left:22px;font-size:15px;color:var(--jy-muted);line-height:1.8;
}
.jy-list-split li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--jy-primary);
}
.jy-list-split li strong{color:var(--jy-text);font-weight:600;}

/* 深色区块 */
.jy-dark{background:var(--jy-dark);color:#fff;}
.jy-dark .jy-h2{color:#fff;}
.jy-dark .jy-lead{color:rgba(255,255,255,.72);}
.jy-dark .jy-eyebrow{color:#F0715A;}
.jy-dark .jy-eyebrow::before{background:#F0715A;}
.jy-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:52px;}
.jy-step{border-top:1px solid rgba(255,255,255,.18);padding-top:22px;}
.jy-step-index{font-family:var(--jy-serif);font-size:30px;color:#F0715A;font-weight:700;display:block;margin-bottom:12px;}
.jy-step h3{font-size:18px;color:#fff;font-weight:600;margin-bottom:8px;}
.jy-step p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8;}

/* 要点速览 */
.jy-points{
  margin-top:96px;background:#fff;border:1px solid var(--jy-border);border-radius:var(--jy-radius-card);
  padding:40px 44px;box-shadow:var(--jy-shadow-1);
}
.jy-points h2{font-size:24px;font-weight:700;margin-bottom:24px;letter-spacing:-.01em;}
.jy-points ul{display:grid;grid-template-columns:1fr 1fr;gap:14px 34px;}
.jy-points li{position:relative;padding-left:22px;font-size:15px;color:var(--jy-muted);line-height:1.8;}
.jy-points li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:50%;background:var(--jy-primary);}

/* FAQ */
.jy-faq-grid{display:grid;grid-template-columns:340px 1fr;gap:64px;align-items:start;}
.jy-faq-intro p{font-size:15px;color:var(--jy-muted);margin-top:14px;}
.jy-acc{border-top:1px solid var(--jy-border);}
.jy-acc-item{border-bottom:1px solid var(--jy-border);}
.jy-acc-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 22px 0;text-align:left;font-size:17px;font-weight:600;color:var(--jy-text);
  transition:color .22s var(--jy-ease),padding-left .24s var(--jy-ease);
  border-left:3px solid transparent;
}
.jy-acc-btn:hover{color:var(--jy-primary);padding-left:10px;}
.jy-acc-item.is-open .jy-acc-btn{color:var(--jy-primary);border-left-color:var(--jy-primary);padding-left:14px;}
.jy-acc-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .3s var(--jy-ease);
}
.jy-acc-icon::before,.jy-acc-icon::after{
  content:"";position:absolute;background:var(--jy-primary);border-radius:2px;
}
.jy-acc-icon::before{left:0;top:10px;width:22px;height:2px;}
.jy-acc-icon::after{top:0;left:10px;width:2px;height:22px;}
.jy-acc-item.is-open .jy-acc-icon{transform:rotate(45deg);}
.jy-acc-panel{max-height:0;overflow:hidden;transition:max-height .34s var(--jy-ease);}
.jy-acc-panel p{padding:0 14px 24px 14px;font-size:15px;color:var(--jy-muted);line-height:1.8;}

/* CTA + 表单 */
.jy-cta{background:#fff;border-top:1px solid var(--jy-border);border-bottom:1px solid var(--jy-border);}
.jy-cta-grid{display:grid;grid-template-columns:1fr 460px;gap:64px;align-items:center;}
.jy-cta h2{font-size:32px;line-height:1.25;letter-spacing:-.02em;font-weight:700;margin-bottom:14px;}
.jy-cta p{color:var(--jy-muted);font-size:15px;max-width:460px;}
.jy-form{display:grid;gap:16px;background:var(--jy-bg);border:1px solid var(--jy-border);border-radius:var(--jy-radius-card);padding:28px;}
.jy-field{display:grid;gap:8px;}
.jy-field label{font-size:13px;font-weight:600;color:var(--jy-text);letter-spacing:.04em;}
.jy-field input,.jy-field textarea{
  height:44px;padding:0 14px;border:1px solid var(--jy-border);border-radius:var(--jy-radius-btn);
  background:#fff;color:var(--jy-text);transition:border-color .22s var(--jy-ease),box-shadow .22s var(--jy-ease);
}
.jy-field textarea{height:86px;padding:12px 14px;resize:vertical;line-height:1.7;}
.jy-field input:focus,.jy-field textarea:focus{
  outline:none;border-color:var(--jy-primary);box-shadow:0 0 0 4px var(--jy-primary-12);
}
.jy-form-note{font-size:12px;color:var(--jy-weak);}

/* 相关分类跳转条 */
.jy-relbar{
  margin-top:96px;padding-top:40px;border-top:1px solid var(--jy-border);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
}
.jy-relbar span.jy-relbar-label{font-size:14px;color:var(--jy-weak);margin-right:6px;}
.jy-rel-link{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;
  border:1px solid var(--jy-border);background:#fff;font-size:14px;color:var(--jy-muted);
  transition:all .22s var(--jy-ease);
}
.jy-rel-link:hover{border-color:var(--jy-primary);color:var(--jy-primary);transform:translateY(-1px);}
.jy-rel-link i{font-size:12px;}

/* 页脚 */
.jy-footer{background:var(--jy-dark);color:rgba(255,255,255,.72);padding:84px 0 0;}
.jy-footer .jy-logo-text{color:#fff;}
.jy-footer .jy-logo-mark{background:var(--jy-primary);}
.jy-footer .jy-logo-mark::after{background:var(--jy-dark);}
.jy-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;}
.jy-footer h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:18px;letter-spacing:.02em;}
.jy-footer ul{display:grid;gap:11px;}
.jy-footer a{color:rgba(255,255,255,.72);font-size:14px;position:relative;}
.jy-footer a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--jy-primary);
  transition:width .26s var(--jy-ease);
}
.jy-footer a:hover{color:#fff;}
.jy-footer a:hover::after{width:100%;}
.jy-footer-brand p{font-size:14px;line-height:1.85;margin-top:18px;max-width:300px;}
.jy-footer-contact{margin-top:14px;font-size:14px;}
.jy-footer-contact a{color:#F0715A;}
.jy-footer-bottom{
  margin-top:64px;border-top:1px solid rgba(255,255,255,.14);
  padding:24px 0 32px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.52);
}

/* 滚动进入动画 */
.jy-reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--jy-ease),transform .32s var(--jy-ease);}
.jy-reveal.is-in{opacity:1;transform:none;}

/* 响应式 */
@media (max-width:1024px){
  :root{--jy-section:80px;}
  .jy-header-inner{grid-template-columns:auto 1fr auto;height:64px;}
  .jy-nav-left,.jy-nav-right .jy-nav-link,.jy-nav-right .jy-header-cta{display:none;}
  .jy-nav-right{gap:8px;}
  .jy-burger{display:inline-flex;}
  .jy-logo{justify-self:start;}
  .jy-logo-text{font-size:16px;}
  .jy-cat-hero{padding:118px 0 0;}
  .jy-cat-hero-grid{grid-template-columns:1fr;gap:32px;}
  .jy-cat-hero-media{aspect-ratio:16/9;order:2;}
  .jy-group-grid{grid-template-columns:1fr;gap:32px;}
  .jy-group-head{position:static;}
  .jy-cards{grid-template-columns:repeat(2,1fr);}
  .jy-steps{grid-template-columns:repeat(2,1fr);gap:32px;}
  .jy-faq-grid{grid-template-columns:1fr;gap:36px;}
  .jy-cta-grid{grid-template-columns:1fr;gap:36px;}
  .jy-footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .jy-h2{font-size:28px;}
}
@media (max-width:768px){
  :root{--jy-section:64px;}
  .jy-container{padding:0 18px;}
  .grid-container.jy-container{padding-left:18px;padding-right:18px;}
  .jy-cat-hero h1{font-size:30px;}
  .jy-intro-inner{grid-template-columns:1fr;padding:24px;gap:14px;}
  .jy-intro-mark{font-size:32px;}
  .jy-cards,.jy-cards-2{grid-template-columns:1fr;}
  .jy-list-split{grid-template-columns:1fr;}
  .jy-points{padding:28px 22px;}
  .jy-points ul{grid-template-columns:1fr;}
  .jy-group{padding-top:64px;margin-top:64px;}
  .jy-points,.jy-relbar{margin-top:64px;}
  .jy-steps{grid-template-columns:1fr;}
  .jy-cta h2{font-size:24px;}
  .jy-footer{padding-top:56px;}
  .jy-footer-grid{grid-template-columns:1fr;gap:30px;}
  .jy-footer-bottom{flex-direction:column;gap:8px;margin-top:40px;}
  .jy-form{padding:22px;}
  .jy-anchor{padding:9px 16px;font-size:13px;}
}
@media (max-width:520px){
  .jy-cat-hero{padding:104px 0 0;}
  .jy-cat-hero h1{font-size:26px;line-height:1.2;}
  .jy-h2{font-size:23px;}
  .jy-group-head h2{font-size:21px;}
  .jy-btn{padding:12px 20px;font-size:14px;width:100%;}
  .jy-cat-hero-actions .jy-btn{width:100%;}
  .jy-acc-btn{font-size:15.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .jy-reveal{opacity:1!important;transform:none!important;}
  .jy-card:hover{transform:none;}
  .jy-card:hover .jy-card-media img{transform:none;}
}

/* roulang page: category4 */
:root{
  --jy-primary:#E2452A;
  --jy-primary-dark:#C63A22;
  --jy-primary-soft:rgba(226,69,42,.08);
  --jy-primary-line:rgba(226,69,42,.40);
  --jy-ink:#123A33;
  --jy-dark:#101413;
  --jy-bg:#F7F5F1;
  --jy-card:#FFFFFF;
  --jy-border:#E4E0D8;
  --jy-text:#141716;
  --jy-text-2:#5A615E;
  --jy-text-3:#8A918D;
  --jy-radius-sm:6px;
  --jy-radius:14px;
  --jy-radius-lg:24px;
  --jy-shadow-1:0 1px 2px rgba(16,20,19,.05);
  --jy-shadow-2:0 18px 40px -16px rgba(16,20,19,.18);
  --jy-ease:cubic-bezier(.22,.61,.36,1);
  --jy-sec:112px;
  --jy-font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --jy-serif:Georgia,"Times New Roman",ui-serif,serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-top:76px;
  font-family:var(--jy-font);
  font-size:16px;
  line-height:1.85;
  color:var(--jy-text);
  background:var(--jy-bg);
  letter-spacing:.005em;
}
h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--jy-font);color:var(--jy-text);font-weight:600;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--jy-primary);text-decoration:none;}
button{font-family:inherit;}
section[id],div[id]{scroll-margin-top:96px;}

.jy-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 按钮 ---------- */
.jy-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--jy-radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background-color .22s var(--jy-ease),color .22s var(--jy-ease),border-color .22s var(--jy-ease),transform .22s var(--jy-ease),box-shadow .22s var(--jy-ease);
}
.jy-btn-primary{background:var(--jy-primary);color:#fff;box-shadow:var(--jy-shadow-1);}
.jy-btn-primary:hover{background:var(--jy-primary-dark);color:#fff;transform:translateY(-1px);}
.jy-btn-ghost{border-color:var(--jy-primary);color:var(--jy-primary);background:transparent;}
.jy-btn-ghost:hover{background:var(--jy-primary-soft);color:var(--jy-primary);transform:translateY(-1px);}
.jy-btn-dark{background:var(--jy-ink);color:#fff;}
.jy-btn-dark:hover{background:#0d2c26;color:#fff;transform:translateY(-1px);}
.jy-btn-sm{padding:11px 20px;font-size:14px;}
.jy-btn-block{width:100%;}
.jy-btn:focus-visible,.jy-nav-link:focus-visible,.jy-anchor:focus-visible,.jy-acc-btn:focus-visible{
  outline:2px solid var(--jy-primary);outline-offset:2px;box-shadow:0 0 0 4px rgba(226,69,42,.12);
}
.jy-btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

.jy-text-link{color:var(--jy-primary);border-bottom:1px dashed var(--jy-primary-line);transition:border-color .2s var(--jy-ease);}
.jy-text-link:hover{border-bottom-style:solid;border-bottom-color:var(--jy-primary);}

.jy-link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--jy-primary);}
.jy-link-arrow::after{content:"→";transition:transform .24s var(--jy-ease);}
.jy-link-arrow:hover::after{transform:translateX(4px);}
.jy-link-arrow:hover{color:var(--jy-primary-dark);}

/* ---------- 头部导航 ---------- */
.jy-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(247,245,241,.92);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .28s var(--jy-ease),border-color .28s var(--jy-ease),box-shadow .28s var(--jy-ease);
}
.jy-header.is-scrolled{background:#fff;border-bottom-color:var(--jy-border);box-shadow:0 6px 24px -18px rgba(16,20,19,.35);}
.jy-header-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:76px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;
  transition:height .28s var(--jy-ease);
}
.jy-header.is-scrolled .jy-header-inner{height:62px;}
.jy-nav-side{display:flex;align-items:center;gap:26px;}
.jy-nav-left{justify-content:flex-start;}
.jy-nav-right{justify-content:flex-end;}
.jy-nav-link{
  position:relative;font-size:15px;color:var(--jy-text);padding:6px 0;white-space:nowrap;
  transition:color .2s var(--jy-ease);
}
.jy-nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--jy-primary);
  transition:width .26s var(--jy-ease);
}
.jy-nav-link:hover{color:var(--jy-primary);}
.jy-nav-link:hover::after{width:100%;}
.jy-nav-link.is-active{color:var(--jy-primary);}
.jy-nav-link.is-active::after{width:100%;}

.jy-logo{display:inline-flex;align-items:center;gap:10px;color:var(--jy-text);}
.jy-logo-mark{
  position:relative;width:28px;height:28px;border-radius:8px;background:var(--jy-primary);flex:0 0 28px;
}
.jy-logo-mark::after{
  content:"";position:absolute;right:6px;bottom:6px;width:9px;height:9px;border-radius:2px;background:#fff;opacity:.9;
}
.jy-logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.jy-header-cta{margin-left:6px;}
.jy-burger{
  display:none;width:42px;height:42px;border-radius:var(--jy-radius-sm);
  border:1px solid var(--jy-border);background:#fff;color:var(--jy-text);font-size:17px;cursor:pointer;
  align-items:center;justify-content:center;
}

/* ---------- 移动抽屉 ---------- */
.jy-drawer{
  position:fixed;inset:0;z-index:200;background:var(--jy-bg);
  display:flex;flex-direction:column;padding:80px 24px 24px;
  transform:translateX(100%);transition:transform .32s var(--jy-ease);
}
.jy-drawer.is-open{transform:translateX(0);}
.jy-drawer-close{
  position:absolute;top:20px;right:20px;width:42px;height:42px;border-radius:var(--jy-radius-sm);
  border:1px solid var(--jy-border);background:#fff;color:var(--jy-text);font-size:18px;cursor:pointer;
}
.jy-drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--jy-border);}
.jy-drawer-nav a{
  font-size:20px;color:var(--jy-text);padding:18px 4px;border-bottom:1px solid var(--jy-border);
  transition:color .2s var(--jy-ease),padding-left .2s var(--jy-ease);
}
.jy-drawer-nav a:hover,.jy-drawer-nav a.is-active{color:var(--jy-primary);padding-left:10px;}
.jy-drawer-foot{margin-top:auto;padding-top:24px;}
.jy-drawer-note{font-size:13px;color:var(--jy-text-3);margin-top:12px;text-align:center;}

/* ---------- 通用区块 ---------- */
.jy-block{padding:var(--jy-sec) 0;}
.jy-block-alt{background:#fff;border-top:1px solid var(--jy-border);border-bottom:1px solid var(--jy-border);}
.jy-eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--jy-primary);font-weight:700;margin-bottom:16px;
}
.jy-sec-head{max-width:720px;margin-bottom:48px;}
.jy-sec-head h2{font-size:36px;letter-spacing:-.02em;margin-bottom:14px;}
.jy-sec-head p{color:var(--jy-text-2);font-size:16px;}

/* ---------- 分类窄 Hero ---------- */
.jy-cat-hero{background:var(--jy-bg);padding:64px 0 0;}
.jy-cat-hero-grid{display:grid;grid-template-columns:1fr 40%;gap:48px;align-items:center;}
.jy-cat-hero h1{font-size:52px;line-height:1.08;letter-spacing:-.02em;margin-bottom:18px;}
.jy-cat-hero-sub{font-size:18px;color:var(--jy-text-2);max-width:520px;margin-bottom:28px;}
.jy-cat-hero-visual img{
  width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--jy-radius-lg);
  box-shadow:var(--jy-shadow-1);
}
.jy-cat-hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.jy-badge{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  border:1px solid var(--jy-primary-line);color:var(--jy-primary);
  font-size:13px;letter-spacing:.06em;background:#fff;
}
.jy-badge-ink{border-color:rgba(18,58,51,.35);color:var(--jy-ink);}

/* ---------- 锚点条 ---------- */
.jy-anchor-wrap{background:var(--jy-bg);padding:36px 0 8px;}
.jy-anchor-bar{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none;}
.jy-anchor-bar::-webkit-scrollbar{display:none;}
.jy-anchor{
  flex:0 0 auto;padding:9px 20px;border-radius:999px;border:1px solid var(--jy-border);
  background:#fff;color:var(--jy-text-2);font-size:14px;white-space:nowrap;
  transition:background-color .22s var(--jy-ease),color .22s var(--jy-ease),border-color .22s var(--jy-ease);
}
.jy-anchor:hover{color:var(--jy-primary);border-color:var(--jy-primary-line);}
.jy-anchor.is-active{background:var(--jy-primary);border-color:var(--jy-primary);color:#fff;}

/* ---------- 导语 ---------- */
.jy-lede{
  background:#fff;border:1px solid var(--jy-border);border-radius:var(--jy-radius);
  padding:32px 36px;box-shadow:var(--jy-shadow-1);
}
.jy-lede p{font-size:17px;color:var(--jy-text-2);}
.jy-lede strong{color:var(--jy-text);}

/* ---------- 分组 ---------- */
.jy-group + .jy-group{margin-top:96px;padding-top:96px;border-top:1px solid var(--jy-border);}
.jy-group-head{display:grid;grid-template-columns:96px 1fr;gap:24px;align-items:start;margin-bottom:40px;}
.jy-num{
  font-family:var(--jy-serif);font-size:40px;line-height:1;color:var(--jy-primary);font-weight:700;
}
.jy-group-head h2{font-size:30px;letter-spacing:-.02em;margin-bottom:10px;}
.jy-group-head p{color:var(--jy-text-2);max-width:640px;}

/* ---------- 卡片 ---------- */
.jy-card-grid{margin-top:0;}
.jy-card{
  background:var(--jy-card);border:1px solid var(--jy-border);border-radius:var(--jy-radius);
  padding:24px;box-shadow:var(--jy-shadow-1);margin-bottom:24px;
  transition:border-color .24s var(--jy-ease),box-shadow .24s var(--jy-ease),transform .24s var(--jy-ease);
  display:flex;flex-direction:column;
}
.jy-card:hover{border-color:var(--jy-primary-line);box-shadow:var(--jy-shadow-2);transform:translateY(-2px);}
.jy-card h3{font-size:19px;margin-bottom:10px;}
.jy-card p{font-size:15px;color:var(--jy-text-2);margin-bottom:16px;}
.jy-card .jy-link-arrow{margin-top:auto;}
.jy-card-cover{padding:0;overflow:hidden;}
.jy-card-cover .jy-card-media{aspect-ratio:16/10;overflow:hidden;background:var(--jy-primary-soft);}
.jy-card-cover .jy-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--jy-ease);}
.jy-card-cover:hover .jy-card-media img{transform:scale(1.03);}
.jy-card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.jy-card-body h3{font-size:18px;margin-bottom:10px;}
.jy-card-body p{font-size:14px;color:var(--jy-text-2);margin-bottom:16px;}
.jy-card-tag{font-size:13px;letter-spacing:.06em;color:var(--jy-primary);margin-bottom:10px;}

/* ---------- 流程 / 步骤 ---------- */
.jy-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--jy-border);}
.jy-step{padding:28px 24px 4px;border-right:1px solid var(--jy-border);}
.jy-step:last-child{border-right:0;}
.jy-step-idx{font-family:var(--jy-serif);font-size:15px;color:var(--jy-primary);letter-spacing:.06em;display:block;margin-bottom:12px;}
.jy-step h3{font-size:17px;margin-bottom:8px;}
.jy-step p{font-size:14px;color:var(--jy-text-2);}

/* ---------- 列表 ---------- */
.jy-dot-list li{position:relative;padding-left:20px;margin-bottom:14px;color:var(--jy-text-2);font-size:16px;}
.jy-dot-list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--jy-primary);
}
.jy-dot-list strong{color:var(--jy-text);}

.jy-plain-list li{
  display:flex;gap:14px;align-items:baseline;padding:16px 0;border-bottom:1px solid var(--jy-border);font-size:15px;color:var(--jy-text-2);
}
.jy-plain-list li:last-child{border-bottom:0;}
.jy-plain-list span:first-child{font-family:var(--jy-serif);color:var(--jy-primary);font-size:14px;flex:0 0 34px;}

/* ---------- 要点速览 ---------- */
.jy-highlight{
  background:var(--jy-ink);color:#fff;border-radius:var(--jy-radius-lg);padding:52px 48px;
}
.jy-highlight h2{color:#fff;font-size:28px;margin-bottom:12px;}
.jy-highlight .jy-hl-sub{color:rgba(255,255,255,.72);font-size:15px;margin-bottom:32px;}
.jy-highlight ul{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 40px;}
.jy-highlight li{position:relative;padding-left:20px;color:rgba(255,255,255,.86);font-size:15.5px;line-height:1.7;}
.jy-highlight li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--jy-primary);
}

/* ---------- FAQ 手风琴 ---------- */
.jy-faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start;}
.jy-faq-intro h2{font-size:32px;letter-spacing:-.02em;margin-bottom:14px;}
.jy-faq-intro p{color:var(--jy-text-2);margin-bottom:24px;}
.jy-accordion{border-top:1px solid var(--jy-border);}
.jy-acc-item{border-bottom:1px solid var(--jy-border);position:relative;}
.jy-acc-item.is-open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--jy-primary);
}
.jy-acc-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:22px 4px 22px 16px;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--jy-text);
}
.jy-acc-btn i{color:var(--jy-primary);font-size:15px;transition:transform .28s var(--jy-ease);flex:0 0 auto;}
.jy-acc-item.is-open .jy-acc-btn i{transform:rotate(45deg);}
.jy-acc-panel{max-height:0;overflow:hidden;transition:max-height .32s var(--jy-ease);}
.jy-acc-inner{padding:0 40px 22px 16px;}
.jy-acc-inner p{color:var(--jy-text-2);font-size:15.5px;line-height:1.8;}

/* ---------- 跳转条 ---------- */
.jy-next-links{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.jy-next-link{
  display:flex;flex-direction:column;gap:6px;padding:22px 24px;background:#fff;
  border:1px solid var(--jy-border);border-radius:var(--jy-radius);color:var(--jy-text);
  transition:border-color .24s var(--jy-ease),box-shadow .24s var(--jy-ease),transform .24s var(--jy-ease);
}
.jy-next-link:hover{border-color:var(--jy-primary);box-shadow:var(--jy-shadow-2);transform:translateY(-2px);}
.jy-next-link b{font-size:16px;font-weight:600;}
.jy-next-link span{font-size:13.5px;color:var(--jy-text-3);}

/* ---------- CTA + 表单 ---------- */
.jy-cta{background:#fff;border-top:1px solid var(--jy-border);}
.jy-cta-grid{display:grid;grid-template-columns:6fr 6fr;gap:64px;align-items:start;}
.jy-cta-copy h2{font-size:34px;letter-spacing:-.02em;margin-bottom:16px;}
.jy-cta-copy p{color:var(--jy-text-2);margin-bottom:28px;max-width:460px;}
.jy-form{background:var(--jy-bg);border:1px solid var(--jy-border);border-radius:var(--jy-radius);padding:28px;}
.jy-field{margin-bottom:18px;}
.jy-field label{display:block;font-size:14px;color:var(--jy-text-2);margin-bottom:8px;}
.jy-input,.jy-select,.jy-textarea{
  width:100%;height:44px;border:1px solid var(--jy-border);border-radius:var(--jy-radius-sm);
  padding:0 14px;font-size:15px;font-family:inherit;color:var(--jy-text);background:#fff;
  transition:border-color .2s var(--jy-ease),box-shadow .2s var(--jy-ease);
}
.jy-textarea{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;}
.jy-input:focus,.jy-select:focus,.jy-textarea:focus{
  outline:none;border-color:var(--jy-primary);box-shadow:0 0 0 4px rgba(226,69,42,.12);
}
.jy-form-hint{font-size:13px;color:var(--jy-text-3);margin-top:12px;}

/* ---------- 页脚 ---------- */
.jy-footer{background:var(--jy-dark);color:rgba(255,255,255,.72);padding:80px 0 32px;margin-top:0;}
.jy-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;padding-bottom:48px;}
.jy-footer-brand .jy-logo{color:#fff;margin-bottom:18px;}
.jy-footer-brand .jy-logo-text{color:#fff;}
.jy-footer-brand p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.72);max-width:300px;}
.jy-footer-contact{margin-top:14px;font-size:14px;}
.jy-footer-contact a{color:#fff;border-bottom:1px solid var(--jy-primary);padding-bottom:2px;}
.jy-footer h4{color:#fff;font-size:15px;margin-bottom:18px;}
.jy-footer ul li{margin-bottom:10px;}
.jy-footer a{color:rgba(255,255,255,.72);font-size:14.5px;transition:color .2s var(--jy-ease);border-bottom:1px solid transparent;}
.jy-footer a:hover{color:#fff;border-bottom-color:var(--jy-primary);}
.jy-footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding-top:24px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}

/* ---------- 动效 ---------- */
.jy-reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--jy-ease),transform .32s var(--jy-ease);}
.jy-reveal.is-visible{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  body{padding-top:66px;}
  .jy-header-inner{display:flex;justify-content:space-between;align-items:center;height:66px;padding:0 18px;}
  .jy-header.is-scrolled .jy-header-inner{height:60px;}
  .jy-nav-side{display:none;}
  .jy-nav-right{display:flex;align-items:center;gap:12px;}
  .jy-nav-right .jy-nav-link,.jy-nav-right .jy-header-cta{display:none;}
  .jy-burger{display:inline-flex;}
  .jy-logo{order:-1;}
  .jy-logo-text{font-size:16px;}
  .jy-block{padding:80px 0;}
  .jy-cat-hero-grid{grid-template-columns:1fr;gap:32px;}
  .jy-cat-hero h1{font-size:38px;}
  .jy-faq-grid{grid-template-columns:1fr;gap:36px;}
  .jy-cta-grid{grid-template-columns:1fr;gap:36px;}
  .jy-next-links{grid-template-columns:repeat(2,1fr);}
  .jy-footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .jy-steps{grid-template-columns:repeat(2,1fr);}
  .jy-step{border-bottom:1px solid var(--jy-border);padding-bottom:24px;}
  .jy-step:nth-child(2n){border-right:0;}
}
@media (max-width:767px){
  .jy-cat-hero{padding-top:40px;}
  .jy-cat-hero h1{font-size:34px;}
  .jy-cat-hero-sub{font-size:16px;}
  .jy-sec-head h2{font-size:24px;}
  .jy-group-head{grid-template-columns:1fr;gap:10px;}
  .jy-num{font-size:32px;}
  .jy-group-head h2{font-size:23px;}
  .jy-group + .jy-group{margin-top:56px;padding-top:56px;}
  .jy-lede{padding:24px;}
  .jy-highlight{padding:36px 24px;border-radius:var(--jy-radius);}
  .jy-highlight ul{grid-template-columns:1fr;gap:14px;}
  .jy-highlight h2{font-size:23px;}
  .jy-cta-copy h2,.jy-faq-intro h2{font-size:24px;}
  .jy-footer{padding:56px 0 28px;}
  .jy-footer-grid{grid-template-columns:1fr;gap:32px;}
  .jy-footer-brand p{max-width:none;}
  .jy-acc-btn{font-size:16px;padding:18px 4px 18px 14px;}
  .jy-acc-inner{padding:0 24px 18px 14px;}
  .jy-cat-hero-visual img{aspect-ratio:16/9;}
}
@media (max-width:520px){
  .jy-container{padding-left:18px;padding-right:18px;}
  .jy-cat-hero h1{font-size:29px;}
  .jy-btn{padding:13px 22px;font-size:14px;}
  .jy-next-links{grid-template-columns:1fr;}
  .jy-steps{grid-template-columns:1fr;}
  .jy-step{border-right:0;}
  .jy-card{padding:20px;}
  .jy-form{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition:none !important;animation:none !important;}
  .jy-reveal{opacity:1 !important;transform:none !important;}
}