/* roulang page: index */
:root{
  --c-brand:#F26419;
  --c-brand-deep:#C24A0D;
  --c-ink:#10312B;
  --c-ink-2:#1F4A41;
  --c-accent:#CDEF5A;
  --c-bg:#FAF6EF;
  --c-bg-2:#F1EAE0;
  --c-line:#E2D9CB;
  --c-text:#2B2B28;
  --c-text-2:#6B665D;
  --c-white:#FFFFFF;
  --r-card:14px;
  --r-btn:8px;
  --r-badge:6px;
  --sh-card:0 1px 2px rgba(16,49,43,.06);
  --sh-hover:0 8px 24px rgba(16,49,43,.12);
  --t:all .22s ease;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:30px;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-ink);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--c-brand-deep);}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a:focus-visible,button:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:16px;font-weight:600;line-height:1.2;
  border:2px solid transparent;transition:var(--t);white-space:nowrap;
}
.btn-primary{background:var(--c-brand);border-color:var(--c-brand);color:#fff;}
.btn-primary:hover{background:var(--c-brand-deep);border-color:var(--c-brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(242,100,25,.28);}
.btn-ghost{background:transparent;border-color:var(--c-ink);color:var(--c-ink);}
.btn-ghost:hover{background:var(--c-ink);border-color:var(--c-ink);color:#fff;transform:translateY(-2px);}
.btn-light{background:transparent;border-color:rgba(255,255,255,.65);color:#fff;}
.btn-light:hover{background:#fff;border-color:#fff;color:var(--c-ink);transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:15px;}

/* 标签与标题 */
.eyebrow{
  display:block;font-size:13px;letter-spacing:1px;font-weight:700;color:var(--c-brand-deep);
  font-family:"DIN Alternate","Barlow Semi Condensed",system-ui,sans-serif;margin-bottom:10px;
}
.section{padding:72px 0;}
.section--alt{background:var(--c-bg-2);}
.section--dark{background:var(--c-ink);color:#fff;}
.section__head{max-width:760px;margin-bottom:40px;}
.section__head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap;}
.section__title{
  position:relative;padding-left:16px;font-size:30px;line-height:40px;font-weight:700;color:var(--c-ink);margin-bottom:14px;
}
.section__title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:20px;border-radius:2px;background:var(--c-brand);
}
.section__lead{font-size:16px;line-height:1.9;color:var(--c-text-2);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-brand-deep);position:relative;}
.text-link::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform var(--t);}
.text-link:hover::after{transform:scaleX(1);}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--c-white);
  border-bottom:1px solid var(--c-line);transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(16,49,43,.08);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  position:relative;width:22px;height:22px;border-radius:4px;background:var(--c-brand);flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;left:6px;top:6px;width:12px;height:12px;background:rgba(255,255,255,.92);
  clip-path:polygon(0 0,100% 0,0 100%);
}
.brand-text{font-size:20px;font-weight:700;color:var(--c-ink);letter-spacing:.5px;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{position:relative;display:inline-block;padding:8px 14px;font-size:16px;color:var(--c-text);border-radius:6px;}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--c-brand);
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-link:hover{color:var(--c-brand-deep);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{margin-left:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-btn);
  flex-direction:column;justify-content:center;align-items:center;gap:5px;flex:0 0 auto;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--c-ink);border-radius:2px;transition:var(--t);}

/* Hero */
.hero{position:relative;padding:72px 0;overflow:hidden;}
.hero__grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero__text{position:relative;}
.hero__deco{
  position:absolute;left:-10px;bottom:-26px;width:150px;height:54px;background:var(--c-brand);opacity:.1;
  clip-path:polygon(14% 0,100% 0,86% 100%,0 100%);z-index:-1;
}
.hero__title{font-size:40px;line-height:1.12;font-weight:700;color:var(--c-ink);margin:12px 0 18px;}
.hero__sub{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:540px;margin-bottom:28px;}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero__badges{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;}
.hero__badges li{display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:20px;color:var(--c-text-2);}
.hero__badges li::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent);flex:0 0 auto;
  box-shadow:0 0 0 2px rgba(205,239,90,.28);
}
.hero__media{position:relative;}
.hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--c-line);}
.hero__stamp{
  position:absolute;right:16px;bottom:16px;padding:8px 12px;border-radius:var(--r-badge);
  background:var(--c-accent);color:var(--c-ink);font-size:13px;font-weight:700;letter-spacing:1px;
  font-family:"DIN Alternate","Barlow Semi Condensed",system-ui,sans-serif;
}

/* 权益对比表 */
.compare{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);}
.compare__row{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr 1fr;align-items:center;
  border-bottom:1px solid var(--c-line);transition:background var(--t);
}
.compare__row--head{background:var(--c-ink-2);border-bottom:0;}
.compare__row--head .compare__cell{color:#fff;font-size:15px;font-weight:600;padding-top:18px;padding-bottom:18px;}
.compare__row:nth-child(odd):not(.compare__row--head){background:var(--c-bg-2);}
.compare__row:not(.compare__row--head):hover{background:rgba(242,100,25,.06);}
.compare__cell{padding:16px;font-size:15px;line-height:24px;color:var(--c-text);text-align:center;}
.compare__cell--label{text-align:left;padding-left:24px;font-weight:500;}
.compare__row--head .compare__cell--label{color:#fff;}
.mark{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;font-size:16px;font-weight:700;line-height:1;}
.mark--yes{color:var(--c-brand);}
.mark--no{color:#B9B2A6;}
.compare__cta{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:20px 24px;background:#fff;border-top:1px solid var(--c-line);
}
.compare__cta-text{font-size:15px;line-height:1.8;color:var(--c-text-2);max-width:620px;}
.compare__cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 等级阶梯 */
.timeline{position:relative;padding-left:32px;}
.timeline::before{content:"";position:absolute;left:5px;top:10px;bottom:10px;width:2px;background:var(--c-line);}
.timeline__item{position:relative;padding-bottom:32px;}
.timeline__item:last-child{padding-bottom:0;}
.timeline__item::before{
  content:"";position:absolute;left:-32px;top:6px;width:12px;height:12px;border-radius:50%;
  background:var(--c-brand);box-shadow:0 0 0 4px var(--c-bg);
}
.section--alt .timeline__item::before{box-shadow:0 0 0 4px var(--c-bg-2);}
.level__no{
  display:inline-block;padding:4px 10px;border-radius:var(--r-badge);background:var(--c-accent);color:var(--c-ink);
  font-size:12px;font-weight:700;letter-spacing:1px;
  font-family:"DIN Alternate","Barlow Semi Condensed",system-ui,sans-serif;
}
.level__title{font-size:21px;line-height:32px;font-weight:700;color:var(--c-ink);margin:10px 0 6px;}
.level__desc{font-size:15px;line-height:1.85;color:var(--c-text-2);max-width:660px;}

/* 专属内容预览 */
.preview{display:grid;grid-template-columns:8fr 4fr;gap:24px;}
.preview__main{position:relative;display:block;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);}
.preview__main img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.preview__main:hover img{transform:scale(1.03);}
.preview__overlay{
  position:absolute;left:0;right:0;bottom:0;padding:24px;
  background:linear-gradient(to top,rgba(16,49,43,.86),rgba(16,49,43,0));
}
.preview__overlay .tagline{
  display:inline-block;margin-bottom:10px;font-size:12px;letter-spacing:1px;color:var(--c-accent);font-weight:700;
  font-family:"DIN Alternate","Barlow Semi Condensed",system-ui,sans-serif;
}
.preview__overlay h3{font-size:24px;line-height:1.45;color:#fff;font-weight:700;}
.preview__aside{display:grid;gap:24px;align-content:start;}
.preview__card{
  display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:center;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:14px;
  box-shadow:var(--sh-card);transition:var(--t);
}
.preview__card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);}
.preview__card img{width:96px;height:72px;object-fit:cover;border-radius:10px;}
.preview__type{font-size:12px;color:var(--c-brand);font-weight:600;margin-bottom:4px;}
.preview__card h3{font-size:16px;line-height:1.55;color:var(--c-ink);font-weight:600;}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);transition:var(--t);height:100%;
}
.news-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);}
.news-card__media{display:block;background:var(--c-bg-2);}
.news-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.news-card__body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-card__tag{
  align-self:flex-start;padding:3px 10px;border:1px solid var(--c-brand);border-radius:var(--r-badge);
  font-size:12px;line-height:18px;color:var(--c-brand);font-weight:600;
}
.news-card__title{
  font-size:18px;line-height:28px;font-weight:600;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-card__title{color:var(--c-brand-deep);}
.news-card__desc{
  font-size:14px;line-height:26px;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-text-2);
}
.news-card__foot .more{font-size:13px;font-weight:600;color:var(--c-brand-deep);}
.empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  padding:32px;text-align:center;background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card);
}
.empty__icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-bg-2);color:var(--c-brand);
  display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;
}
.empty__title{font-size:16px;color:var(--c-text);}
.empty__hint{font-size:13px;color:var(--c-text-2);}

/* FAQ */
.faq{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);}
.faq__item + .faq__item{border-top:1px solid var(--c-line);}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);transition:color var(--t);
}
.faq__q:hover{color:var(--c-brand-deep);}
.faq__icon{position:relative;flex:0 0 auto;width:16px;height:16px;}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;background:var(--c-brand);border-radius:2px;transition:transform var(--t),opacity var(--t);
}
.faq__icon::before{left:0;top:7px;width:16px;height:2px;}
.faq__icon::after{left:7px;top:0;width:2px;height:16px;}
.faq__item.is-open .faq__icon::after{transform:scaleY(0);opacity:0;}
.faq__a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq__a-inner{position:relative;padding:0 24px 22px 44px;font-size:15px;line-height:1.9;color:var(--c-text-2);}
.faq__a-inner::before{content:"";position:absolute;left:24px;top:4px;bottom:26px;width:3px;border-radius:2px;background:var(--c-line);}

/* CTA 通栏 */
.cta-band{position:relative;background:var(--c-ink);color:#fff;padding:72px 0;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;left:-60px;bottom:-40px;width:340px;height:140px;background:var(--c-brand);opacity:.4;
  clip-path:polygon(0 0,100% 100%,0 100%);
}
.cta-band__inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band__title{font-size:30px;line-height:40px;font-weight:700;color:#fff;}
.cta-band__desc{font-size:15px;line-height:1.9;color:rgba(255,255,255,.78);margin-top:10px;max-width:620px;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.78);padding-top:56px;}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:40px;}
.footer__brand{font-size:20px;font-weight:700;color:#fff;margin-bottom:12px;}
.footer__desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);max-width:360px;}
.footer__title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer__list li{font-size:14px;line-height:2;}
.footer__list a{color:rgba(255,255,255,.78);}
.footer__list a:hover{color:var(--c-accent);}
.footer__bar{border-top:1px solid rgba(255,255,255,.12);padding:18px 20px;text-align:center;}
.footer__bar p{font-size:13px;color:rgba(255,255,255,.6);}

/* 响应式 */
@media (max-width:1024px){
  .hero{padding:56px 0;}
  .hero__grid{grid-template-columns:1fr;gap:32px;}
  .hero__title{font-size:34px;}
  .preview{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:56px 0;}
}
@media (max-width:900px){
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;z-index:70;
    flex-direction:column;align-items:stretch;gap:0;padding:84px 0 24px;background:#fff;
    transform:translateX(100%);transition:transform var(--t);
    box-shadow:-8px 0 32px rgba(16,49,43,.14);overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{padding:0 24px;line-height:52px;font-size:18px;border-bottom:1px solid var(--c-line);border-radius:0;}
  .nav-link::after{display:none;}
  .nav-link.is-active{box-shadow:inset 3px 0 0 var(--c-brand);}
  .nav-cta{margin:20px 24px 0;line-height:1.2;padding:14px 20px;}
}
@media (max-width:860px){
  .compare{display:grid;gap:16px;background:transparent;border:0;box-shadow:none;overflow:visible;}
  .compare__row--head{display:none;}
  .compare__row{
    display:block;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:12px 0;border-bottom:1px solid var(--c-line);
  }
  .compare__row:nth-child(odd):not(.compare__row--head){background:#fff;}
  .compare__cell{
    display:flex;align-items:center;justify-content:space-between;text-align:right;
    padding:8px 20px;font-size:15px;
  }
  .compare__cell::before{content:attr(data-label);color:var(--c-text-2);font-size:14px;font-weight:400;margin-right:auto;padding-right:12px;}
  .compare__cell--label{
    display:block;text-align:left;font-weight:700;font-size:16px;color:var(--c-ink);
    padding:4px 20px 12px;border-bottom:1px solid var(--c-line);margin-bottom:6px;
  }
  .compare__cell--label::before{content:none;}
  .compare__cta{flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);}
  .compare__cta-actions{flex-direction:column;}
  .compare__cta-actions .btn{width:100%;}
}
@media (max-width:640px){
  .section{padding:44px 0;}
  .hero{padding:44px 0;}
  .hero__title{font-size:28px;line-height:36px;}
  .hero__sub{font-size:16px;}
  .section__title{font-size:24px;line-height:34px;}
  .section__lead{font-size:15px;}
  .hero__actions{flex-direction:column;}
  .hero__actions .btn{width:100%;}
  .news-grid{grid-template-columns:1fr;}
  .news-card__body{padding:18px;}
  .preview__card{grid-template-columns:84px 1fr;gap:12px;}
  .preview__card img{width:84px;height:64px;}
  .preview__overlay{padding:18px;}
  .preview__overlay h3{font-size:19px;}
  .timeline{padding-left:26px;}
  .timeline__item::before{left:-26px;}
  .faq__q{padding:18px 18px;font-size:16px;}
  .faq__a-inner{padding:0 18px 18px 36px;}
  .faq__a-inner::before{left:18px;}
  .cta-band{padding:44px 0;}
  .cta-band__title{font-size:24px;line-height:34px;}
  .cta-band__actions{width:100%;flex-direction:column;gap:12px;}
  .cta-band__actions .btn{width:100%;}
  .footer__grid{grid-template-columns:1fr;}
}

/* roulang page: article */
:root{
  --c-brand:#F26419;
  --c-brand-deep:#C24A0D;
  --c-ink:#10312B;
  --c-ink-2:#1F4A41;
  --c-accent:#CDEF5A;
  --c-bg:#FAF6EF;
  --c-bg-2:#F1EAE0;
  --c-line:#E2D9CB;
  --c-text:#2B2B28;
  --c-text-2:#6B665D;
  --c-white:#FFFFFF;
  --r-card:14px;
  --r-btn:8px;
  --r-badge:6px;
  --sd-card:0 1px 2px rgba(16,49,43,.06);
  --sd-hover:0 8px 24px rgba(16,49,43,.12);
  --t:all .22s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-ink);text-decoration:none;transition:var(--t)}
a:hover{color:var(--c-brand-deep)}
button{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:700}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--alt{background:var(--c-bg-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-title{position:relative;font-size:30px;line-height:1.4;padding-left:15px}
.section-title::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--c-brand)}
.section-sub{font-size:15px;color:var(--c-text-2);margin-top:8px}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:1px;color:var(--c-brand-deep);font-weight:600;margin-bottom:10px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:12px 24px;border-radius:var(--r-btn);
  border:2px solid transparent;cursor:pointer;
  transition:var(--t);text-decoration:none;white-space:nowrap;
}
.btn-primary{background:var(--c-brand);color:#fff;border-color:var(--c-brand)}
.btn-primary:hover{background:var(--c-brand-deep);border-color:var(--c-brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(194,74,13,.26)}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-ink)}
.btn-ghost:hover{background:var(--c-ink);color:#fff;transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--c-brand-deep);border-color:#fff}
.btn-white:hover{background:var(--c-ink);color:#fff;border-color:var(--c-ink);transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-outline-light:hover{background:#fff;color:var(--c-ink);border-color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:15px}
.text-link{position:relative;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-ink)}
.text-link::after{content:"";position:absolute;left:0;right:22px;bottom:-3px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.text-link:hover{color:var(--c-brand-deep)}
.text-link:hover::after{transform:scaleX(1)}

/* ---------- 标签 / 徽章 ---------- */
.tag{display:inline-block;padding:5px 12px;font-size:12px;line-height:1.5;border-radius:var(--r-badge);border:1px solid var(--c-line);background:var(--c-white);color:var(--c-text-2);transition:var(--t)}
.tag:hover{border-color:var(--c-brand);color:var(--c-brand-deep)}
.tag--brand{border-color:var(--c-brand);color:var(--c-brand)}
.tag--solid{background:var(--c-accent);border-color:var(--c-accent);color:var(--c-ink);font-weight:600}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:200;background:var(--c-white);border-bottom:1px solid var(--c-line);transition:box-shadow var(--t)}
.site-header.is-stuck{box-shadow:0 4px 16px rgba(16,49,43,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{position:relative;width:26px;height:26px;flex:none;border-radius:4px;background:var(--c-brand);clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%)}
.brand-mark::after{content:"";position:absolute;right:4px;bottom:4px;width:8px;height:8px;border-radius:2px;background:var(--c-accent)}
.brand-text{font-size:20px;font-weight:700;color:var(--c-ink);letter-spacing:.02em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px}
.nav-link{position:relative;display:inline-block;font-size:16px;font-weight:500;color:var(--c-text);padding:6px 0}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-brand-deep);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.nav-link:hover{color:var(--c-brand-deep)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-ink);font-weight:600}
.nav-link.is-active::after{background:var(--c-brand);transform:scaleX(1)}
.nav-cta{margin-left:6px}
.nav-toggle{display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:44px;height:40px;padding:0;background:var(--c-white);border:1px solid var(--c-line);border-radius:8px;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-ink);transition:var(--t)}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;padding:56px 0 48px;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;color:#fff;overflow:hidden}
.article-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(16,49,43,.95) 0%,rgba(16,49,43,.86) 52%,rgba(16,49,43,.68) 100%)}
.article-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:18px;font-size:14px;color:rgba(255,255,255,.7)}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.42)}
.breadcrumb .current{color:#fff}
.article-title{font-size:32px;line-height:1.34;font-weight:700;color:#fff;max-width:900px;margin-bottom:18px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:rgba(255,255,255,.78)}
.meta-tag{display:inline-block;padding:4px 10px;border-radius:var(--r-badge);background:var(--c-accent);color:var(--c-ink);font-size:12px;font-weight:600;line-height:1.6}
.meta-sep{width:1px;height:12px;background:rgba(255,255,255,.35)}

/* ---------- 文章主体 ---------- */
.article-wrap{padding:48px 0 64px;background:var(--c-bg)}
.article-card{
  max-width:840px;margin:0 auto;background:var(--c-white);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sd-card);padding:48px;
}
.article-body{font-size:17px;line-height:1.88;color:var(--c-text);word-wrap:break-word}
.article-body p{margin:0 0 1em}
.article-body h2{position:relative;font-size:24px;line-height:1.5;color:var(--c-ink);margin:40px 0 16px;padding-left:15px}
.article-body h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--c-brand)}
.article-body h3{font-size:19px;line-height:1.55;color:var(--c-ink);margin:32px 0 12px}
.article-body h4{font-size:17px;line-height:1.6;color:var(--c-ink);margin:24px 0 10px}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1em}
.article-body li{margin:6px 0;line-height:1.9}
.article-body ul li::marker{color:var(--c-brand)}
.article-body ol li::marker{color:var(--c-brand);font-weight:600}
.article-body blockquote{margin:24px 0;padding:16px 20px;background:var(--c-bg-2);border-left:4px solid var(--c-ink);border-radius:0 10px 10px 0}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:20px auto;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:8px;font-size:13px;color:var(--c-text-2);text-align:center}
.article-body a{color:var(--c-brand-deep);border-bottom:1px solid rgba(194,74,13,.35)}
.article-body a:hover{color:var(--c-brand);border-bottom-color:var(--c-brand)}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--c-line);border-radius:10px;overflow:hidden}
.article-body th{background:var(--c-ink-2);color:#fff;text-align:left;font-weight:600;padding:12px 14px;border:none}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--c-line);background:transparent}
.article-body tbody tr:nth-child(even) td{background:var(--c-bg-2)}
.article-body tbody tr:last-child td{border-bottom:none}
.article-body code{padding:2px 6px;border-radius:4px;background:var(--c-bg-2);font-size:15px}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:32px 0}
.article-empty{text-align:center;padding:56px 16px}
.article-empty__title{font-size:20px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.article-empty__desc{font-size:15px;color:var(--c-text-2);margin-bottom:22px}

.article-tags{display:flex;flex-wrap:wrap;gap:10px;max-width:840px;margin:26px auto 0}
.article-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;max-width:840px;margin:22px auto 0}
.btn-top{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;font-size:14px;font-weight:600;color:var(--c-ink);background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--r-btn);cursor:pointer;transition:var(--t)}
.btn-top:hover{border-color:var(--c-brand);color:var(--c-brand-deep);transform:translateY(-2px);box-shadow:var(--sd-hover)}

/* ---------- 相关阅读 ---------- */
.related{max-width:840px;margin:44px auto 0}
.related h3{font-size:18px;margin-bottom:16px;position:relative;padding-left:12px}
.related h3::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--c-brand)}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.related-card{
  display:block;background:var(--c-white);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sd-card);transition:var(--t);
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--sd-hover);border-color:#d6c9b6}
.related-card__label{font-size:12px;color:var(--c-brand);font-weight:600;letter-spacing:.5px}
.related-card__title{font-size:17px;line-height:1.6;color:var(--c-ink);margin:8px 0 10px}
.related-card:hover .related-card__title{color:var(--c-brand-deep)}
.related-card__meta{font-size:13px;color:var(--c-text-2);padding-top:12px;border-top:1px solid var(--c-line);display:flex;justify-content:space-between;align-items:center}

/* ---------- 侧栏 ---------- */
.article-side{display:none}
@media (min-width:1025px){.article-side{display:block}}
.side-sticky{position:sticky;top:96px;display:grid;gap:20px}
.side-card{background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sd-card)}
.side-card--brand{background:var(--c-brand);border-color:var(--c-brand)}
.side-title{font-size:17px;font-weight:700;color:var(--c-ink);margin-bottom:10px}
.side-desc{font-size:14px;line-height:1.8;color:var(--c-text-2);margin-bottom:18px}
.side-card--brand .side-title{color:#fff}
.side-card--brand .side-desc{color:rgba(255,255,255,.86)}
.side-list{list-style:none;display:grid;gap:12px;margin:0 0 18px;padding:0}
.side-list li{position:relative;padding-left:18px;font-size:14px;line-height:1.75;color:var(--c-text-2)}
.side-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--c-accent)}
.side-card .btn{width:100%}

/* ---------- CTA 通栏 ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--c-ink);color:#fff;padding:56px 0}
.cta-band::after{content:"";position:absolute;left:-70px;bottom:-90px;width:340px;height:240px;background:var(--c-brand);opacity:.38;clip-path:polygon(0 0,100% 100%,0 100%)}
.cta-band__inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:30px;line-height:1.4;color:#fff;margin-bottom:8px}
.cta-band p{margin:0;font-size:15px;color:rgba(255,255,255,.78);max-width:620px}
.cta-band__btns{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.78)}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding:56px 0 40px}
.footer__brand{font-size:18px;font-weight:700;color:#fff;margin-bottom:12px}
.footer__desc{font-size:14px;line-height:1.8;margin:0;max-width:330px}
.footer__title{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer__list{list-style:none;display:grid;gap:10px;margin:0;padding:0;font-size:14px}
.footer__list li{line-height:1.7}
.footer__list a{color:rgba(255,255,255,.78)}
.footer__list a:hover{color:#fff}
.footer__bar{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;text-align:center}
.footer__bar p{margin:0;font-size:13px;color:rgba(255,255,255,.6)}

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

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;top:72px;right:0;width:280px;height:calc(100vh - 72px);
    flex-direction:column;align-items:stretch;gap:0;
    padding:12px 0 32px;background:var(--c-white);
    border-left:1px solid var(--c-line);box-shadow:-8px 0 24px rgba(16,49,43,.08);
    transform:translateX(105%);transition:transform .26s ease;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{font-size:18px;line-height:52px;padding:0 24px;border-bottom:1px solid var(--c-line);border-left:3px solid transparent}
  .nav-link::after{display:none}
  .nav-link.is-active{border-left-color:var(--c-brand);color:var(--c-brand-deep)}
  .nav-cta{margin:16px 24px 0}
  .section{padding:56px 0}
  .section-title{font-size:26px}
  .cta-band h2{font-size:25px}
}
@media (max-width:768px){
  .section{padding:44px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .section-title{font-size:23px}
  .article-title{font-size:26px}
  .article-hero{padding:38px 0 32px}
  .article-card{padding:22px;border-radius:12px}
  .article-wrap{padding:32px 0 44px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:32px}
  .related-grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr;gap:28px;padding:40px 0 28px}
  .cta-band{padding:40px 0}
  .cta-band__btns{width:100%}
  .cta-band__btns .btn{width:100%}
  .article-body table{font-size:14px}
  .article-body th,.article-body td{padding:10px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-text{font-size:17px}
  .article-title{font-size:23px;line-height:1.4}
  .article-meta{gap:10px;font-size:12px}
  .article-card{padding:18px}
  .btn{padding:12px 18px;font-size:14px}
  .cta-band h2{font-size:22px}
}

/* roulang page: category1 */
:root{
  --c-brand:#F26419;
  --c-brand-deep:#C24A0D;
  --c-ink:#10312B;
  --c-ink-2:#1F4A41;
  --c-accent:#CDEF5A;
  --c-bg:#FAF6EF;
  --c-bg-2:#F1EAE0;
  --c-line:#E2D9CB;
  --c-text:#2B2B28;
  --c-text-2:#6B665D;
  --c-white:#FFFFFF;
  --r-card:14px;
  --r-btn:8px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(16,49,43,.06);
  --sh-2:0 8px 24px rgba(16,49,43,.12);
  --t:.22s ease;
  --font-sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Barlow Semi Condensed",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.875;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:0;line-height:1.4;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-ink);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--c-brand-deep);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;text-align:center;
  padding:12px 24px;border-radius:var(--r-btn);
  border:2px solid transparent;cursor:pointer;
  transition:all var(--t);
}
.btn-primary{background:var(--c-brand);border-color:var(--c-brand);color:#fff;}
.btn-primary:hover{background:var(--c-brand-deep);border-color:var(--c-brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-outline{background:transparent;border-color:var(--c-ink);color:var(--c-ink);}
.btn-outline:hover{background:var(--c-ink);border-color:var(--c-ink);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.badge{display:inline-block;font-size:12px;line-height:1.6;padding:5px 10px;border-radius:var(--r-badge);}
.badge-outline{border:1px solid var(--c-brand);color:var(--c-brand);background:var(--c-white);}
.text-link{font-size:14px;font-weight:600;color:var(--c-brand-deep);}
.text-link:hover{color:var(--c-brand);}
.link-underline{position:relative;}
.link-underline::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:currentColor;transition:width var(--t);}
.link-underline:hover::after{width:100%;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:70;background:var(--c-white);border-bottom:1px solid var(--c-line);transition:box-shadow var(--t);}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(16,49,43,.08);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{position:relative;width:26px;height:26px;flex:0 0 auto;background:var(--c-brand);border-radius:4px;clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);}
.brand-mark::after{content:"";position:absolute;left:8px;top:8px;width:10px;height:10px;background:var(--c-white);border-radius:2px;}
.brand-text{font-size:20px;font-weight:700;color:var(--c-ink);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{position:relative;display:inline-block;padding:0 14px;font-size:16px;color:var(--c-text);line-height:72px;}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform var(--t);}
.nav-link:hover{color:var(--c-brand-deep);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{margin-left:12px;white-space:nowrap;}
.nav-toggle{display:none;width:44px;height:44px;padding:0 10px;border:0;background:transparent;flex-direction:column;justify-content:center;gap:5px;cursor:pointer;}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--c-ink);transition:all var(--t);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-mask{position:fixed;inset:0;background:rgba(16,49,43,.35);opacity:0;visibility:hidden;transition:all var(--t);z-index:55;}
.nav-mask.is-open{opacity:1;visibility:visible;}

/* ---------- category hero ---------- */
.cat-hero{background:var(--c-bg-2);border-bottom:1px solid var(--c-line);padding:48px 0 44px;}
.cat-hero__inner{max-width:900px;border-left:6px solid var(--c-brand);padding-left:22px;}
.cat-hero__title{font-size:28px;line-height:1.35;margin:14px 0 12px;}
.cat-hero__lead{margin:0 0 22px;max-width:660px;font-size:15px;color:var(--c-text-2);}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:20px;}
.cat-hero__meta{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:12px;color:var(--c-text-2);}
.cat-hero__meta li{display:flex;align-items:center;gap:8px;}
.cat-hero__meta li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);flex:0 0 auto;}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section--alt{background:var(--c-bg-2);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:20px;margin-bottom:36px;}
.sec-head__main{max-width:740px;}
.sec-num{display:block;font-family:var(--font-num);font-size:13px;letter-spacing:1px;font-weight:700;color:var(--c-brand-deep);margin-bottom:8px;}
.sec-title{display:flex;align-items:center;gap:12px;font-size:30px;line-height:1.33;}
.sec-title::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--c-brand);flex:0 0 auto;}
.sec-desc{margin:14px 0 0;font-size:15px;color:var(--c-text-2);max-width:660px;}

/* ---------- cards ---------- */
.card-grid>.cell{display:flex;}
.card{
  display:flex;flex-direction:column;width:100%;height:100%;overflow:hidden;
  background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:all var(--t);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.card__media{aspect-ratio:16/9;background:var(--c-bg-2);overflow:hidden;}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card__media img{transform:scale(1.03);}
.card__body{display:flex;flex-direction:column;flex:1;padding:24px;}
.card__title{font-size:18px;line-height:1.5;margin-bottom:10px;}
.card__text{margin:0 0 18px;font-size:14px;line-height:1.75;color:var(--c-text-2);}
.card__link{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-brand);}
.card__link:hover{color:var(--c-brand-deep);}
.card__link i{font-size:12px;transition:transform var(--t);}
.card__link:hover i{transform:translateX(3px);}

/* ---------- scene list ---------- */
.scene-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px;border-top:1px solid var(--c-line);}
.scene{display:flex;gap:18px;padding:26px 0;border-bottom:1px solid var(--c-line);}
.scene__num{font-family:var(--font-num);font-size:13px;letter-spacing:1px;font-weight:700;color:var(--c-brand-deep);padding-top:6px;flex:0 0 auto;}
.scene__title{font-size:18px;line-height:1.5;margin-bottom:6px;}
.scene__text{margin:0;font-size:15px;color:var(--c-text-2);}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;position:relative;}
.flow::before{content:"";position:absolute;top:19px;left:0;right:0;height:2px;background:var(--c-line);}
.flow__item{position:relative;padding-top:0;}
.flow__dot{position:relative;z-index:1;display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--c-brand);color:#fff;font-family:var(--font-num);font-size:14px;font-weight:700;box-shadow:0 0 0 6px var(--c-bg);}
.flow__title{margin:18px 0 8px;font-size:18px;line-height:1.5;}
.flow__text{margin:0;font-size:14px;line-height:1.8;color:var(--c-text-2);}

/* ---------- compare table ---------- */
.table-wrap{background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.cmp{width:100%;border-collapse:collapse;margin:0;font-size:15px;}
.cmp__caption{caption-side:top;text-align:left;padding:18px 20px;background:var(--c-white);border-bottom:1px solid var(--c-line);font-size:13px;color:var(--c-text-2);}
.cmp thead th{background:var(--c-ink-2);color:#fff;font-size:15px;font-weight:600;text-align:left;padding:16px 20px;border:0;}
.cmp tbody td{padding:17px 20px;border-bottom:1px solid var(--c-line);vertical-align:top;line-height:1.7;color:var(--c-text);}
.cmp tbody tr:nth-child(even){background:var(--c-bg-2);}
.cmp tbody tr:hover{background:rgba(242,100,25,.06);}
.cmp tbody tr:last-child td{border-bottom:0;}
.cmp .row-label{font-weight:600;color:var(--c-ink);}

/* ---------- faq ---------- */
.faq{background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.faq__item+.faq__item{border-top:1px solid var(--c-line);}
.faq__h{margin:0;font-size:inherit;font-weight:inherit;}
.faq__q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:22px 24px;border:0;background:transparent;font-size:17px;font-weight:600;color:var(--c-ink);text-align:left;cursor:pointer;transition:color var(--t);}
.faq__q:hover{color:var(--c-brand-deep);}
.faq__icon{position:relative;flex:0 0 auto;width:16px;height:16px;}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;border-radius:2px;background:var(--c-brand);transition:transform var(--t),opacity var(--t);}
.faq__icon::before{left:0;top:7px;width:16px;height:2px;}
.faq__icon::after{left:7px;top:0;width:2px;height:16px;}
.faq__item.is-open .faq__icon::after{transform:scaleY(0);opacity:0;}
.faq__a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq__a-inner{margin:0 24px 22px;padding-left:16px;border-left:3px solid var(--c-line);font-size:15px;line-height:1.9;color:var(--c-text);}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--c-bg-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:56px 0;}
.cta-band::after{content:"";position:absolute;left:0;bottom:0;width:240px;height:60%;background:var(--c-brand);opacity:.08;clip-path:polygon(0 100%,0 32%,100% 100%);}
.cta-band__inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:28px;}
.cta-band__text{max-width:600px;}
.cta-band__text h2{font-size:28px;line-height:1.35;margin-bottom:10px;}
.cta-band__text p{margin:0;font-size:15px;color:var(--c-text-2);}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.78);padding-top:56px;}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:40px;}
.footer__brand{color:#fff;font-size:18px;font-weight:700;margin-bottom:12px;}
.footer__desc{margin:0;max-width:340px;font-size:14px;line-height:1.8;}
.footer__title{margin:0 0 16px;color:#fff;font-size:15px;font-weight:600;}
.footer__list li{font-size:14px;line-height:2;}
.footer__list a{color:rgba(255,255,255,.78);}
.footer__list a:hover{color:var(--c-accent);}
.footer__bar{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;text-align:center;}
.footer__bar p{margin:0;font-size:13px;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .main-nav{
    position:fixed;top:0;right:0;z-index:60;
    width:280px;max-width:86vw;height:100%;
    flex-direction:column;align-items:stretch;gap:0;
    padding:84px 0 28px;background:var(--c-white);
    box-shadow:-8px 0 32px rgba(16,49,43,.14);
    transform:translateX(100%);transition:transform var(--t);
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{line-height:52px;padding:0 24px;font-size:18px;border-bottom:1px solid var(--c-line);}
  .nav-link::after{display:none;}
  .nav-link.is-active{border-left:3px solid var(--c-brand);background:rgba(242,100,25,.06);}
  .nav-cta{margin:20px 24px 0;justify-content:center;}
  .nav-toggle{display:flex;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow::before{display:none;}
}
@media (max-width:900px){
  .scene-list{grid-template-columns:1fr;gap:0;}
}
@media (max-width:768px){
  .section{padding:44px 0;}
  .sec-title{font-size:24px;line-height:1.42;}
  .cat-hero{padding:36px 0 34px;}
  .cat-hero__title{font-size:24px;}
  .cta-band{padding:44px 0;}
  .cta-band__text h2{font-size:24px;}
  .footer__grid{grid-template-columns:1fr;gap:28px;}
  .brand-text{font-size:17px;}
}
@media (max-width:640px){
  .flow{grid-template-columns:1fr;gap:28px;}
  .cat-hero__actions .btn{width:100%;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{width:100%;}
  .card__body{padding:18px;}
  .cmp thead{display:none;}
  .cmp,.cmp tbody,.cmp tr,.cmp td{display:block;width:100%;}
  .table-wrap{background:transparent;border:0;box-shadow:none;border-radius:0;}
  .cmp__caption{padding:0 0 14px;background:transparent;border:0;}
  .cmp tbody tr{background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;margin-bottom:16px;}
  .cmp tbody tr:nth-child(even){background:var(--c-white);}
  .cmp tbody tr:hover{background:var(--c-white);}
  .cmp tbody td{display:flex;justify-content:space-between;gap:16px;padding:12px 16px;border-bottom:1px dashed var(--c-line);font-size:14px;}
  .cmp tbody td:last-child{border-bottom:0;}
  .cmp tbody td::before{content:attr(data-label);flex:0 0 auto;font-size:13px;font-weight:600;color:var(--c-text-2);}
  .cmp tbody td.row-label{justify-content:flex-start;background:var(--c-bg-2);font-weight:700;color:var(--c-ink);}
  .cmp tbody td.row-label::before{content:none;}
  .faq__q{padding:18px;font-size:16px;}
  .faq__a-inner{margin:0 18px 18px;font-size:14.5px;}
}

/* roulang page: category2 */
:root{
  --c-brand:#F26419;
  --c-brand-deep:#C24A0D;
  --c-ink:#10312B;
  --c-ink-2:#1F4A41;
  --c-accent:#CDEF5A;
  --c-bg:#FAF6EF;
  --c-bg-2:#F1EAE0;
  --c-line:#E2D9CB;
  --c-text:#2B2B28;
  --c-text-2:#6B665D;
  --c-white:#FFFFFF;
  --r-card:14px;
  --r-btn:8px;
  --r-badge:6px;
  --sh-card:0 1px 2px rgba(16,49,43,.06);
  --sh-hover:0 8px 24px rgba(16,49,43,.12);
  --sh-head:0 4px 16px rgba(16,49,43,.08);
  --gap:24px;
  --sec-pad:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.9;color:var(--c-text);background:var(--c-bg);
}
img{max-width:100%;display:block;border-radius:12px}
a{color:var(--c-ink);text-decoration:none;transition:all .22s ease}
a:hover{color:var(--c-brand-deep)}
button,input,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.32;font-weight:700}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}

.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--sec-pad) 0}
.section--alt{background:var(--c-bg-2)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;flex-wrap:wrap}
.sec-title{position:relative;font-size:30px;padding-left:15px}
.sec-title::before{content:"";position:absolute;left:0;top:.18em;width:4px;height:20px;background:var(--c-brand);border-radius:2px}
.sec-sub{color:var(--c-text-2);font-size:15px;margin:8px 0 0;max-width:720px}
.idx{font-family:"DIN Alternate","Barlow Semi Condensed",sans-serif;color:var(--c-brand-deep);font-size:13px;letter-spacing:1px;font-weight:700}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-white);border-bottom:1px solid var(--c-line);transition:box-shadow .22s ease}
.site-header.is-stuck{box-shadow:var(--sh-head)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{position:relative;width:22px;height:22px;background:var(--c-brand);border-radius:5px;transform:skewX(-9deg);display:inline-block}
.brand-mark::after{content:"";position:absolute;right:4px;bottom:4px;width:7px;height:7px;background:var(--c-ink);border-radius:2px}
.brand-text{font-size:20px;font-weight:700;color:var(--c-ink);letter-spacing:.5px}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;padding:10px 14px;font-size:16px;color:var(--c-text);border-radius:6px}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.nav-link:hover{color:var(--c-brand-deep)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-brand-deep);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--r-btn);font-size:16px;font-weight:600;border:2px solid transparent;cursor:pointer;transition:all .22s ease;text-align:center}
.btn-primary{background:var(--c-brand);color:#fff;border-color:var(--c-brand)}
.btn-primary:hover{background:var(--c-brand-deep);border-color:var(--c-brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(194,74,13,.28)}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-ink)}
.btn-ghost:hover{background:var(--c-ink);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:15px}
.btn-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-white:hover{background:#fff;color:var(--c-ink);transform:translateY(-2px)}
.nav-cta{margin-left:10px}
.nav-toggle{display:none;width:44px;height:40px;background:transparent;border:1px solid var(--c-line);border-radius:8px;padding:9px 10px;flex-direction:column;justify-content:space-between;cursor:pointer}
.nav-toggle span{display:block;height:2px;background:var(--c-ink);border-radius:2px}

/* hero */
.cat-hero{padding:56px 0 64px;background:var(--c-bg-2);border-bottom:1px solid var(--c-line)}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--c-line)}
.hero-tag{position:absolute;left:16px;top:16px;background:var(--c-accent);color:var(--c-ink);font-size:12px;font-weight:700;padding:5px 10px;border-radius:var(--r-badge)}
.hero-copy h1{font-size:40px;line-height:1.24;font-weight:700;margin-bottom:16px}
.hero-copy .lead{font-size:17px;color:var(--c-text-2);max-width:560px;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:20px}
.hero-badges{display:flex;flex-wrap:wrap;gap:18px}
.hero-badges span{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--c-text-2)}
.hero-badges span::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent);border:1px solid var(--c-brand)}

/* 等级速览 */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.tier-card{background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-card);transition:all .22s ease}
.tier-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.tier-num{display:inline-block;background:var(--c-accent);color:var(--c-ink);font-family:"DIN Alternate","Barlow Semi Condensed",sans-serif;font-size:13px;font-weight:700;padding:4px 10px;border-radius:var(--r-badge);letter-spacing:1px;margin-bottom:14px}
.tier-card h3{font-size:21px;margin-bottom:10px}
.tier-card p{font-size:14px;color:var(--c-text-2);margin:0}
.tier-card .tier-meta{margin-top:14px;padding-top:12px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-brand-deep);font-weight:600}

/* 分组列表 */
.group{padding:32px 0;border-bottom:1px solid var(--c-line)}
.group:first-of-type{padding-top:8px}
.group:last-of-type{border-bottom:0;padding-bottom:0}
.group-head{display:flex;align-items:baseline;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.group-head h3{font-size:21px}
.desc-list{display:grid;grid-template-columns:1fr 1fr;gap:20px 44px}
.desc-item h4{font-size:18px;margin-bottom:6px;font-weight:600;color:var(--c-ink)}
.desc-item p{font-size:15px;color:var(--c-text-2);margin:0;line-height:1.85}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.flow-step{background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-card);transition:all .22s ease}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.flow-step .idx{display:block;margin-bottom:12px}
.flow-step h3{font-size:18px;margin-bottom:8px}
.flow-step p{font-size:14px;color:var(--c-text-2);margin:0}

/* 图文说明 */
.split{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.split img{width:100%;aspect-ratio:16/10;object-fit:cover;border:1px solid var(--c-line)}
.split h2{font-size:30px;margin-bottom:14px}
.split p{font-size:16px;color:var(--c-text-2)}
.check-list{margin-top:18px;display:grid;gap:10px}
.check-list li{position:relative;padding-left:28px;font-size:15px}
.check-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--c-brand);font-weight:700}

/* FAQ */
.faq{background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;background:transparent;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);cursor:pointer;transition:background .22s ease}
.faq-q:hover{background:rgba(242,100,25,.05)}
.faq-q .sign{flex-shrink:0;width:22px;height:22px;line-height:20px;text-align:center;color:var(--c-brand);font-size:20px;font-weight:700}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{margin:0;padding:0 24px 20px 24px;font-size:15px;line-height:1.9;color:var(--c-text-2);border-left:3px solid var(--c-line);margin-left:24px;padding-left:16px}
.faq-item.is-open .faq-a{max-height:340px}

/* 注册区块 */
.register-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.form-card{background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-card)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--c-text-2);margin-bottom:8px}
.field input,.field select{width:100%;height:48px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:var(--c-white);color:var(--c-text);transition:all .22s ease}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(242,100,25,.15)}
.form-note{font-size:13px;color:var(--c-text-2);margin:14px 0 0}
.form-card .btn{width:100%}

/* CTA 条 */
.cta-band{background:var(--c-bg-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;left:-60px;bottom:-60px;width:280px;height:280px;background:var(--c-brand);opacity:.12;transform:skewX(-14deg);border-radius:36px}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;padding:44px 0}
.cta-inner h2{font-size:26px;color:var(--c-ink);margin-bottom:8px}
.cta-inner p{font-size:15px;color:var(--c-text-2);margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* footer */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.78);margin-top:0}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding:56px 20px 40px}
.footer__brand{font-size:19px;font-weight:700;color:#fff;margin-bottom:12px}
.footer__desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);margin:0;max-width:340px}
.footer__title{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer__list li{margin-bottom:10px;font-size:14px}
.footer__list a{color:rgba(255,255,255,.78)}
.footer__list a:hover{color:var(--c-accent)}
.footer__bar{border-top:1px solid rgba(255,255,255,.12);padding:16px 20px;text-align:center}
.footer__bar p{margin:0;font-size:13px;color:rgba(255,255,255,.62)}

@media (max-width:1024px){
  :root{--sec-pad:56px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-copy h1{font-size:32px}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .register-wrap{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  :root{--sec-pad:44px;--gap:16px}
  .main-nav{position:fixed;top:0;right:0;width:280px;height:100%;background:var(--c-white);flex-direction:column;align-items:stretch;gap:0;padding:80px 0 24px;transform:translateX(100%);transition:transform .26s ease;box-shadow:-8px 0 24px rgba(16,49,43,.14);z-index:80;overflow-y:auto}
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{padding:0 22px;height:52px;display:flex;align-items:center;border-bottom:1px solid var(--c-line);border-radius:0;font-size:18px}
  .nav-link::after{display:none}
  .nav-link.is-active{box-shadow:inset 3px 0 0 var(--c-brand)}
  .nav-cta{margin:18px 22px 0;height:46px;justify-content:center}
  .nav-toggle{display:flex;position:relative;z-index:90}
  .hero-copy h1{font-size:28px;line-height:1.3}
  .sec-title{font-size:24px}
  .split h2{font-size:24px}
  .desc-list{grid-template-columns:1fr;gap:20px}
  .tier-grid,.flow{grid-template-columns:1fr}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .faq-q{padding:16px 18px;font-size:16px}
  .faq-a p{margin-left:18px;padding-right:18px}
  .footer__grid{grid-template-columns:1fr;padding:40px 20px 28px}
}