/* roulang page: index */
:root{
  --c-primary:#D6492A;
  --c-primary-deep:#A8351C;
  --c-primary-soft:#FBEAE3;
  --c-secondary:#17453A;
  --c-secondary-2:#2C6B58;
  --c-accent:#E0A94A;
  --c-bg:#FBF8F4;
  --c-bg-2:#F3EEE6;
  --c-surface:#FFFFFF;
  --c-ink:#1A1F1D;
  --c-ink-2:#5A6560;
  --c-ink-3:#8B948F;
  --c-line:#E5DDD2;
  --c-dark:#12211C;
  --r-hero:20px;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,33,28,.06);
  --sh-2:0 12px 28px -14px rgba(18,33,28,.24);
  --sh-3:0 24px 60px -24px rgba(18,33,28,.28);
  --sp:8px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.95;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--c-bg-2);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.sec-head-main{display:flex;flex-direction:column;gap:6px;}
.sec-title{font-size:clamp(24px,2.6vw,32px);line-height:1.35;display:flex;align-items:center;gap:12px;}
.sec-title::before{content:"";width:18px;height:3px;border-radius:2px;background:var(--c-primary);flex:0 0 auto;}
.sec-desc{font-size:14px;color:var(--c-ink-3);padding-left:30px;}
.sec-more{font-size:14px;color:var(--c-secondary-2);white-space:nowrap;border-bottom:1px solid transparent;padding-bottom:2px;}
.sec-more:hover{border-bottom-color:var(--c-primary);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;transition:all .25s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px -10px rgba(214,73,42,.9);}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:var(--c-surface);border-color:var(--c-line);color:var(--c-secondary);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:rgba(214,73,42,.35);color:var(--c-primary-deep);}
.btn-outline-light{background:transparent;border-color:rgba(224,169,74,.6);color:#F4E3C6;}
.btn-outline-light:hover{background:rgba(224,169,74,.14);color:#fff;border-color:var(--c-accent);}
.btn[disabled],.btn.is-disabled{filter:grayscale(1);opacity:.45;cursor:not-allowed;transform:none;}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;
  padding:3px 11px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  font-size:13px;font-weight:600;line-height:1.7;
}
.badge--outline{background:transparent;border:1px solid var(--c-line);color:var(--c-ink-2);font-weight:500;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 24px -18px rgba(18,33,28,.5);}
.nav-inner{display:flex;align-items:center;gap:24px;height:70px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--c-primary) 0%,var(--c-primary-deep) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;letter-spacing:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-name{font-size:17px;font-weight:800;color:var(--c-primary);letter-spacing:-.02em;}
.logo-sub{font-size:11.5px;color:var(--c-ink-3);letter-spacing:.02em;}
.nav-list{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--c-ink-2);border-radius:8px;position:relative;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-bg-2);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-text-link{font-size:14.5px;color:var(--c-ink-2);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--c-line);background:var(--c-surface);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .3s var(--ease);}
.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);}

.drawer{
  position:fixed;inset:0 0 0 auto;width:min(360px,88vw);z-index:70;
  background:var(--c-surface);box-shadow:var(--sh-3);
  transform:translateX(102%);transition:transform .38s var(--ease);
  display:flex;flex-direction:column;padding:22px 22px 26px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--c-line);}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-secondary);}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);font-size:18px;color:var(--c-ink-2);line-height:1;}
.drawer-nav{display:flex;flex-direction:column;padding:16px 0 0;gap:2px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 12px;border-radius:10px;font-size:15.5px;color:var(--c-ink-2);
}
.drawer-nav a:hover{background:var(--c-bg-2);color:var(--c-primary);}
.drawer-nav a.is-active{background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--c-line);display:flex;flex-direction:column;gap:10px;}
.drawer-foot .btn{width:100%;}
.drawer-mask{position:fixed;inset:0;background:rgba(18,33,28,.42);z-index:65;opacity:0;visibility:hidden;transition:opacity .3s var(--ease);}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  margin:24px auto 0;max-width:1200px;width:calc(100% - 48px);
  min-height:560px;display:flex;align-items:center;
  background:var(--c-dark);
}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.72;}
.hero-mask{position:absolute;inset:0;background:radial-gradient(120% 100% at 8% 50%,rgba(18,33,28,.92) 0%,rgba(18,33,28,.68) 42%,rgba(18,33,28,.16) 100%);}
.hero-inner{position:relative;z-index:2;padding:72px 56px;width:100%;}
.hero-copy{max-width:620px;color:#fff;grid-column:span 6;}
.hero-brand{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:#F0D9AE;margin-bottom:18px;}
.hero-brand::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px;}
.hero h1{
  font-size:clamp(30px,4.4vw,46px);font-weight:800;line-height:1.22;
  color:#fff;letter-spacing:-.01em;
}
.hero-sub{
  margin-top:16px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:540px;
}
.hero-search{
  margin-top:28px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.hero-field{
  display:flex;align-items:center;flex:1 1 300px;max-width:420px;
  background:rgba(255,255,255,.96);border-radius:999px;padding:4px 4px 4px 18px;
  box-shadow:var(--sh-2);
}
.hero-field input{
  flex:1;border:0;background:transparent;height:44px;font-size:15px;min-width:0;
}
.hero-field input::placeholder{color:var(--c-ink-3);}
.hero-field input:focus{outline:none;}
.hero-stats{
  margin-top:34px;display:flex;gap:34px;flex-wrap:wrap;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.18);
}
.hero-stat-num{font-size:24px;font-weight:800;color:#F0B678;line-height:1.2;}
.hero-stat-label{font-size:13.5px;color:rgba(255,255,255,.72);}

/* ---------- 目录卡 ---------- */
.toc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.toc-card{
  position:relative;display:flex;flex-direction:column;gap:10px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 20px 18px;box-shadow:var(--sh-1);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.toc-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(214,73,42,.35);}
.toc-num{font-size:26px;font-weight:800;color:var(--c-accent);line-height:1;}
.toc-title{font-size:17px;font-weight:700;color:var(--c-ink);line-height:1.5;}
.toc-text{font-size:14px;color:var(--c-ink-2);line-height:1.8;}
.toc-jump{font-size:13px;color:var(--c-secondary-2);margin-top:auto;padding-top:10px;}

/* ---------- 精选条目 ---------- */
.picks{display:grid;grid-template-columns:2fr 1fr;gap:24px;align-items:stretch;}
.pick-main{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .4s var(--ease),transform .4s var(--ease),border-color .4s var(--ease);
}
.pick-main:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(214,73,42,.35);}
.pick-cover{overflow:hidden;background:var(--c-bg-2);min-height:290px;}
.pick-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.pick-main:hover .pick-cover img{transform:scale(1.04);}
.pick-body{padding:26px 26px 22px;display:flex;flex-direction:column;gap:12px;}
.pick-body h3{font-size:22px;line-height:1.5;}
.pick-body p{font-size:15px;color:var(--c-ink-2);line-height:1.9;}
.pick-meta{margin-top:auto;font-size:13.5px;color:var(--c-ink-3);display:flex;gap:10px;flex-wrap:wrap;}
.pick-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.pick-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
}
.pick-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(214,73,42,.35);}
.pick-card .thumb{overflow:hidden;height:132px;background:var(--c-bg-2);}
.pick-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.pick-card:hover .thumb img{transform:scale(1.04);}
.pick-card .txt{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;}
.pick-card h3{font-size:16px;line-height:1.55;}
.pick-card span{font-size:13px;color:var(--c-ink-3);}

/* ---------- 步骤 ---------- */
.steps-wrap{display:grid;grid-template-columns:1.55fr 1fr;gap:24px;}
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--sh-1);position:relative;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:11px;background:var(--c-primary-soft);
  color:var(--c-primary-deep);font-weight:800;font-size:15px;margin-bottom:12px;
}
.step h3{font-size:17px;margin-bottom:8px;line-height:1.5;}
.step p{font-size:14.5px;color:var(--c-ink-2);line-height:1.9;}
.aside-card{
  background:var(--c-secondary);color:#fff;border-radius:var(--r-card);
  padding:28px 26px;display:flex;flex-direction:column;gap:14px;height:100%;
  box-shadow:var(--sh-2);
}
.aside-card h3{font-size:19px;color:#fff;}
.aside-card p{font-size:14.5px;color:rgba(255,255,255,.78);line-height:1.9;}
.aside-list{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
.aside-list li{display:flex;gap:10px;font-size:14.5px;color:rgba(255,255,255,.88);line-height:1.8;}
.aside-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);margin-top:11px;flex:0 0 auto;}
.aside-card .btn{align-self:flex-start;margin-top:auto;}

/* ---------- 最新信息（CMS） ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 20px;display:flex;flex-direction:column;gap:12px;
  box-shadow:var(--sh-1);transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(214,73,42,.35);}
.post-card h3{font-size:17px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card h3 a:hover{color:var(--c-primary);}
.post-card p{font-size:14.5px;color:var(--c-ink-2);line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--c-ink-3);}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;
  padding:64px 24px;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);
}
.empty-state .glyph{width:56px;height:56px;border-radius:16px;background:var(--c-bg-2);display:flex;align-items:center;justify-content:center;color:var(--c-ink-3);font-size:24px;}
.empty-state p{font-size:15px;color:var(--c-ink-2);}

/* ---------- 相关推荐 4 列 ---------- */
.rec-scroll{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.rec-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(214,73,42,.35);}
.rec-card .thumb{height:120px;overflow:hidden;background:var(--c-bg-2);}
.rec-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.rec-card:hover .thumb img{transform:scale(1.05);}
.rec-card .txt{padding:14px 16px 18px;display:flex;flex-direction:column;gap:10px;}
.rec-card h3{font-size:15.5px;line-height:1.6;}

/* ---------- 场景 ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.scene-media{border-radius:var(--r-card);overflow:hidden;background:var(--c-bg-2);box-shadow:var(--sh-2);}
.scene-media img{width:100%;height:100%;object-fit:cover;min-height:320px;}
.scene-list{display:flex;flex-direction:column;gap:18px;margin-top:26px;}
.scene-item{display:flex;gap:14px;padding:16px 18px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);}
.scene-item .dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);margin-top:11px;flex:0 0 auto;}
.scene-item h3{font-size:16px;margin-bottom:4px;}
.scene-item p{font-size:14.5px;color:var(--c-ink-2);line-height:1.85;}
.scene-lead{font-size:16px;color:var(--c-ink-2);line-height:1.95;margin-top:14px;}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.faq-item:hover{border-color:rgba(214,73,42,.4);}
.faq-item[open]{box-shadow:var(--sh-1);border-color:rgba(214,73,42,.4);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 20px;font-size:16.5px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:20px;font-weight:400;color:var(--c-primary);
  transition:transform .3s var(--ease);line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .answer{padding:0 20px 20px;font-size:15px;color:var(--c-ink-2);line-height:1.9;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  max-width:1200px;width:calc(100% - 48px);margin:0 auto;
  background:linear-gradient(135deg,var(--c-secondary) 0%,var(--c-dark) 100%);
  color:#fff;
}
.cta-band .cta-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;opacity:.16;}
.cta-inner{position:relative;z-index:2;padding:60px 56px;display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center;}
.cta-inner h2{font-size:clamp(24px,2.6vw,32px);color:#fff;line-height:1.4;}
.cta-inner p{margin-top:14px;font-size:15.5px;color:rgba(255,255,255,.78);line-height:1.9;max-width:520px;}
.cta-btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;}
.cta-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-card);padding:24px;display:flex;flex-direction:column;gap:12px;
}
.cta-card h3{font-size:17px;color:#fff;}
.cta-card ul{display:flex;flex-direction:column;gap:9px;}
.cta-card li{font-size:14px;color:rgba(255,255,255,.8);display:flex;gap:9px;line-height:1.8;}
.cta-card li::before{content:"—";color:var(--c-accent);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.74);margin-top:88px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px;}
.foot-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.foot-col h3::before{content:"";width:14px;height:2px;background:var(--c-primary);border-radius:2px;}
.foot-col p,.foot-col li{font-size:14px;line-height:1.9;}
.foot-col ul{display:flex;flex-direction:column;gap:9px;}
.foot-col a:hover{color:#F0B678;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand .logo-mark{background:var(--c-primary);}
.foot-brand span{font-size:16px;font-weight:800;color:#fff;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);
}
.foot-qr{
  width:96px;height:96px;border-radius:12px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center;
  font-size:12px;text-align:center;color:rgba(255,255,255,.6);line-height:1.6;padding:8px;
}

/* ---------- 滚动显隐 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .toc-grid{grid-template-columns:repeat(2,1fr);}
  .rec-scroll{grid-template-columns:repeat(2,1fr);}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .foot-col--qr{grid-column:span 3;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .nav-list,.nav-text-link{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{height:64px;}
  .hero{min-height:480px;width:calc(100% - 32px);margin-top:16px;}
  .hero-inner{padding:48px 32px;}
  .picks{grid-template-columns:1fr;}
  .pick-main{grid-template-columns:1fr;}
  .pick-cover{min-height:220px;}
  .steps-wrap{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .scene{grid-template-columns:1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;padding:48px 32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:52px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px;}
  .sec-desc{padding-left:0;}
  .toc-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:1fr;}
  .rec-scroll{
    display:flex;overflow-x:auto;gap:14px;padding-bottom:8px;
    scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  }
  .rec-card{flex:0 0 78%;scroll-snap-align:start;}
  .hero-inner{padding:40px 22px;}
  .hero-stats{gap:22px;}
  .foot-grid{grid-template-columns:1fr 1fr;padding:48px 0 32px;}
  .foot-col--qr{grid-column:span 2;}
  .cta-band{width:calc(100% - 32px);}
  .cta-inner{padding:40px 22px;}
  .site-footer{margin-top:64px;}
}
@media (max-width:519px){
  .hero h1{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .hero-search{flex-direction:column;align-items:stretch;}
  .hero-field{max-width:none;width:100%;}
  .hero-search .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-col--qr{grid-column:span 1;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --c-primary:#D6492A;
  --c-primary-deep:#A8351C;
  --c-primary-soft:#FBEAE3;
  --c-secondary:#17453A;
  --c-secondary-2:#2C6B58;
  --c-accent:#E0A94A;
  --c-bg:#FBF8F4;
  --c-bg-2:#F3EEE6;
  --c-surface:#FFFFFF;
  --c-ink:#1A1F1D;
  --c-ink-2:#5A6560;
  --c-ink-3:#8B948F;
  --c-line:#E5DDD2;
  --c-dark:#12211C;
  --r-hero:20px;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,33,28,.06);
  --sh-2:0 12px 28px -14px rgba(18,33,28,.24);
  --sh-3:0 24px 60px -24px rgba(18,33,28,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .25s var(--ease),background-color .25s var(--ease),border-color .25s var(--ease)}
a:hover{color:var(--c-primary-deep)}
button{font:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--c-ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;background:transparent;
  transition:transform .25s var(--ease),background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -12px rgba(214,73,42,.7)}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-deep)}
.btn-ghost{background:var(--c-surface);color:var(--c-secondary);border-color:var(--c-line)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);border-color:rgba(214,73,42,.4)}
.btn-dark{background:transparent;color:#F4EDE3;border-color:rgba(224,169,74,.6)}
.btn-dark:hover{background:rgba(224,169,74,.14);color:#fff;border-color:var(--c-accent);transform:translateY(-1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);transition:box-shadow .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 14px 30px -22px rgba(18,33,28,.5)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--c-ink);white-space:nowrap}
.logo:hover{color:var(--c-ink)}
.logo-mark{
  width:36px;height:36px;flex:none;border-radius:10px;background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-size:17px;font-weight:800;letter-spacing:0;
  box-shadow:0 8px 18px -10px rgba(214,73,42,.85);
}
.logo-text em{font-style:normal;color:var(--c-primary)}
.nav-list{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 14px;
  border-radius:999px;font-size:15px;color:var(--c-ink-2);
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-link.is-active{color:var(--c-primary);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;background:var(--c-primary);
}
.nav-drawer-cta{display:none}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.nav-toggle{
  display:none;width:46px;height:46px;margin-left:auto;border:1px solid var(--c-line);
  border-radius:12px;background:var(--c-surface);cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .3s var(--ease),opacity .3s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;border-radius:var(--r-hero);overflow:hidden;margin-top:28px;
  padding:56px 44px 44px;color:#fff;
  background-image:linear-gradient(102deg,rgba(18,33,28,.90) 8%,rgba(18,33,28,.58) 62%,rgba(18,33,28,.34)),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72)}
.crumbs a{color:rgba(255,255,255,.82)}
.crumbs a:hover{color:#fff}
.crumbs span.sep{opacity:.5}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(224,169,74,.18);border:1px solid rgba(224,169,74,.55);color:#F6DFB4;
}
.article-hero h1{
  margin-top:16px;max-width:820px;color:#fff;
  font-size:clamp(28px,3.6vw,42px);font-weight:800;line-height:1.28;letter-spacing:-.01em;
}
.hero-sub{margin-top:14px;max-width:760px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.78)}
.meta-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 0;margin-top:26px;
  padding-top:20px;border-top:1px solid rgba(255,255,255,.16);
  font-size:13.5px;color:rgba(255,255,255,.7);
}
.meta-bar .mi{display:inline-flex;align-items:center;gap:7px}
.meta-bar .mi+.mi::before{content:"";width:1px;height:13px;background:rgba(255,255,255,.28);margin:0 14px;display:inline-block}
.meta-bar .mi strong{color:#fff;font-weight:600}

/* ---------- 布局 ---------- */
.page-body{padding:56px 0 88px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 300px;gap:56px;
  justify-content:center;align-items:start;
}
.article-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:44px 46px;box-shadow:var(--sh-1);
}
.article-body{font-size:17px;line-height:1.95;color:var(--c-ink);word-wrap:break-word}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  font-size:clamp(22px,2.4vw,29px);font-weight:700;line-height:1.35;
  margin:2.2em 0 .8em;padding-left:16px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1em;border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:20px;font-weight:600;line-height:1.45;margin:1.6em 0 .6em}
.article-body h4{font-size:17.5px;font-weight:600;margin:1.4em 0 .5em;color:var(--c-secondary)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
.article-body ul li{list-style:disc;margin:.45em 0}
.article-body ol li{list-style:decimal;margin:.45em 0}
.article-body li::marker{color:var(--c-primary)}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--c-primary);
  background:var(--c-bg-2);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--c-ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{width:auto;max-width:100%;height:auto;border-radius:var(--r-img);margin:1.6em auto;box-shadow:var(--sh-1)}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:10px;line-height:1.7}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--c-primary-deep)}
.article-body strong{font-weight:700;color:var(--c-ink)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;background:var(--c-surface)}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:11px 14px;text-align:left}
.article-body th{background:var(--c-bg-2);font-weight:600}
.article-body code{background:var(--c-bg-2);padding:2px 7px;border-radius:6px;font-size:.92em;color:var(--c-primary-deep)}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2.2em 0}
.article-body > *:first-child{margin-top:0}

/* 空态 */
.empty-state{
  text-align:center;padding:64px 24px;
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state svg{width:64px;height:64px;color:var(--c-ink-3)}
.empty-state h2{font-size:22px;font-weight:700}
.empty-state p{color:var(--c-ink-2);font-size:15.5px;max-width:420px}

/* ---------- 侧栏 ---------- */
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.side-card h3{
  font-size:15px;font-weight:700;display:flex;align-items:center;gap:9px;margin-bottom:14px;
}
.side-card h3::before{content:"";width:14px;height:3px;border-radius:2px;background:var(--c-primary)}
.side-list li+li{margin-top:10px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--c-ink-2);
  border:1px solid transparent;background:var(--c-bg);
  transition:all .25s var(--ease);
}
.side-list a:hover{color:var(--c-primary-deep);border-color:rgba(214,73,42,.35);background:var(--c-primary-soft);transform:translateX(2px)}
.side-list a::after{content:"→";font-size:13px;opacity:.6}
.side-note{font-size:14px;color:var(--c-ink-2);line-height:1.85}
.side-cover{margin-top:16px;border-radius:var(--r-img);overflow:hidden}
.side-cover img{width:100%;height:150px;object-fit:cover}
.side-stat{display:flex;gap:16px;margin-top:16px}
.side-stat div{flex:1;background:var(--c-bg-2);border-radius:10px;padding:12px 10px;text-align:center}
.side-stat b{display:block;color:var(--c-primary);font-size:19px;font-weight:800;line-height:1.2}
.side-stat span{font-size:12.5px;color:var(--c-ink-3)}

/* ---------- 通用分区 ---------- */
.section{padding:0 0 88px}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;
}
.section-head .st{display:flex;align-items:center;gap:12px;font-size:25px;font-weight:700}
.section-head .st::before{content:"";width:18px;height:3px;border-radius:2px;background:var(--c-primary);flex:none}
.section-head .sub{font-size:13px;color:var(--c-ink-3);margin-top:4px}
.section-head .more{font-size:14px;color:var(--c-ink-2);border-bottom:1px solid transparent}
.section-head .more:hover{color:var(--c-primary);border-color:var(--c-primary)}

.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s var(--ease);
}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(214,73,42,.35);box-shadow:var(--sh-2)}
.rel-thumb{overflow:hidden;aspect-ratio:16/10;background:var(--c-bg-2)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--c-primary-soft);color:var(--c-primary-deep);
}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body h3 a{color:var(--c-ink)}
.rel-body h3 a:hover{color:var(--c-primary)}
.rel-body p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-meta{margin-top:auto;font-size:13px;color:var(--c-ink-3);display:flex;gap:8px;align-items:center}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--c-secondary),var(--c-dark));
  border-radius:var(--r-hero);padding:48px 46px;color:#F4EDE3;
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.4}
.cta-band p{margin-top:12px;font-size:15.5px;line-height:1.9;color:rgba(244,237,227,.78);max-width:620px}
.cta-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-info{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-card);padding:22px;
}
.cta-info h3{color:#fff;font-size:16px;margin-bottom:12px}
.cta-info li{font-size:14px;color:rgba(244,237,227,.78);padding-left:16px;position:relative;line-height:1.85}
.cta-info li+li{margin-top:8px}
.cta-info li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--c-accent)}

/* ---------- 分享行 ---------- */
.share-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:28px;
  padding-top:24px;border-top:1px solid var(--c-line);
}
.share-row .label{font-size:14px;color:var(--c-ink-3);margin-right:2px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:0 22px;transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.faq-item:hover{border-color:rgba(214,73,42,.3);box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;font-size:16.5px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:none;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;background:var(--c-primary-soft);color:var(--c-primary);
  font-size:18px;font-weight:700;transition:transform .3s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 0 20px;font-size:15px;line-height:1.9;color:var(--c-ink-2)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(240,236,228,.72);padding:64px 0 26px;margin-top:8px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:16px}
.foot-col p{font-size:14.5px;line-height:1.9;color:rgba(240,236,228,.66)}
.foot-col h3{
  font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;
  display:flex;align-items:center;gap:9px;
}
.foot-col h3::before{content:"";width:14px;height:3px;border-radius:2px;background:var(--c-primary)}
.foot-col ul li+li{margin-top:10px}
.foot-col ul a{font-size:14.5px;color:rgba(240,236,228,.72)}
.foot-col ul a:hover{color:var(--c-accent)}
.foot-qr{
  margin-top:16px;width:112px;height:112px;border-radius:12px;
  border:1px dashed rgba(240,236,228,.35);display:grid;place-items:center;
  font-size:12.5px;line-height:1.6;text-align:center;color:rgba(240,236,228,.6);
}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(240,236,228,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(240,236,228,.5);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none}
  *{transition:none !important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px}
}
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .nav-actions{display:none}
  .nav-list{
    position:fixed;inset:0 0 0 auto;width:min(340px,86vw);
    background:var(--c-surface);flex-direction:column;align-items:stretch;gap:4px;
    padding:96px 24px 32px;margin:0;box-shadow:var(--sh-3);
    transform:translateX(102%);transition:transform .38s var(--ease);
    overflow-y:auto;z-index:70;
  }
  .nav-list.is-open{transform:translateX(0)}
  .nav-list .nav-link{padding:14px 16px;border-radius:12px;font-size:16px}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{background:var(--c-primary-soft)}
  .nav-drawer-cta{
    display:flex;align-items:center;justify-content:center;min-height:46px;margin-top:16px;
    border-radius:var(--r-btn);background:var(--c-primary);color:#fff;font-weight:600;font-size:15.5px;
  }
  .nav-drawer-cta:hover{background:var(--c-primary-deep);color:#fff}
  .article-hero{padding:42px 30px 36px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .side{position:static}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:38px 30px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .article-card{padding:34px 28px}
  .section{padding-bottom:64px}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 16px}
  .logo{font-size:16px}
  .logo-mark{width:32px;height:32px;font-size:15px}
  .article-hero{margin-top:16px;padding:34px 20px 28px;border-radius:16px}
  .article-card{padding:26px 20px;border-radius:12px}
  .article-body{font-size:16.5px;line-height:1.9}
  .article-body h2{margin-top:1.8em}
  .meta-bar .mi+.mi::before{margin:0 9px}
  .grid-3{grid-template-columns:minmax(0,1fr)}
  .foot-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 20px;border-radius:16px}
  .cta-btns{flex-direction:column;align-items:stretch}
  .cta-btns .btn{width:100%}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .page-body{padding:32px 0 52px}
}
@media (max-width:480px){
  .logo-text{font-size:15px}
  .article-body table{font-size:14px}
  .share-row .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --c-primary:#D6492A;
  --c-primary-deep:#A8351C;
  --c-primary-soft:#FBEAE3;
  --c-secondary:#17453A;
  --c-secondary-2:#2C6B58;
  --c-accent:#E0A94A;
  --c-bg:#FBF8F4;
  --c-bg-2:#F3EEE6;
  --c-surface:#FFFFFF;
  --c-ink:#1A1F1D;
  --c-ink-2:#5A6560;
  --c-ink-3:#8B948F;
  --c-line:#E5DDD2;
  --c-dark:#12211C;
  --r-hero:20px;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,33,28,.06);
  --sh-2:0 12px 28px -14px rgba(18,33,28,.24);
  --sh-3:0 24px 60px -24px rgba(18,33,28,.28);
  --tr:.45s cubic-bezier(.2,.7,.2,1);
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.95;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-secondary-2);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.01em;}
h1{font-size:clamp(28px,4vw,42px);font-weight:800;line-height:1.22;}
h2{font-size:clamp(23px,2.6vw,31px);font-weight:700;line-height:1.35;}
h3{font-size:20px;font-weight:600;line-height:1.45;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--alt{background:var(--c-bg-2);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head .sh-left{display:flex;flex-direction:column;gap:8px;}
.section-head .sh-title{display:flex;align-items:center;gap:12px;}
.section-head .sh-title::before{content:"";width:18px;height:3px;border-radius:2px;background:var(--c-primary);display:inline-block;}
.section-head .sh-desc{font-size:13.5px;color:var(--c-ink-3);line-height:1.7;padding-left:30px;}
.section-head .sh-more{font-size:14px;font-weight:600;white-space:nowrap;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;background:var(--c-surface);color:var(--c-secondary);
  transition:background var(--tr),color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border-color:var(--c-line);color:var(--c-secondary);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:rgba(214,73,42,.35);color:var(--c-primary-deep);}
.btn-outline-light{background:transparent;border-color:rgba(224,169,74,.65);color:#F6E7CE;}
.btn-outline-light:hover{background:rgba(224,169,74,.14);border-color:var(--c-accent);color:#fff;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  font-size:13px;font-weight:600;line-height:1.6;
}
.badge--muted{background:var(--c-bg-2);color:var(--c-ink-2);}
.badge--line{background:transparent;border:1px solid var(--c-line);color:var(--c-ink-2);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .3s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px -18px rgba(18,33,28,.5);}
.header-inner{display:flex;align-items:center;gap:24px;min-height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em;}
.logo-mark{
  width:30px;height:30px;flex:0 0 30px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:800;
}
.logo em{font-style:normal;color:var(--c-primary);}
.nav-list{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;color:var(--c-ink-2);
}
.nav-link:hover{color:var(--c-primary);background:var(--c-bg-2);}
.nav-link.is-active{color:var(--c-ink);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);}
.nav-toggle:hover{background:var(--c-bg-2);}

/* 移动端抽屉 */
.drawer{
  position:fixed;top:0;right:0;z-index:90;
  width:min(86vw,360px);height:100%;background:var(--c-surface);
  box-shadow:var(--sh-3);transform:translateX(105%);
  transition:transform .4s cubic-bezier(.2,.7,.2,1);
  display:flex;flex-direction:column;padding:20px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--c-line);}
.drawer-close{width:44px;height:44px;border-radius:var(--r-btn);font-size:22px;line-height:1;color:var(--c-ink-2);}
.drawer-close:hover{background:var(--c-bg-2);color:var(--c-primary);}
.drawer-nav{display:flex;flex-direction:column;padding:12px 0;flex:1;}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:var(--r-btn);
  font-size:16px;color:var(--c-ink-2);border-bottom:1px solid var(--c-line);
}
.drawer-nav a:last-child{border-bottom:none;}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:700;background:var(--c-primary-soft);}
.drawer-cta{width:100%;}
.drawer-backdrop{
  position:fixed;inset:0;z-index:80;background:rgba(18,33,28,.45);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible;}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:22px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-ink-3);list-style:none;margin:0;padding:0;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--c-line);}
.breadcrumb a{color:var(--c-ink-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb [aria-current]{color:var(--c-ink);font-weight:600;}

/* ---------- 分类小 Hero ---------- */
.cat-hero{position:relative;margin:20px 0 0;border-radius:var(--r-hero);overflow:hidden;background:var(--c-dark);}
.cat-hero__bg{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center;opacity:.62;}
.cat-hero__mask{position:absolute;inset:0;background:radial-gradient(120% 100% at 12% 20%,rgba(18,33,28,.86) 0%,rgba(18,33,28,.62) 48%,rgba(18,33,28,.34) 100%);}
.cat-hero__inner{position:relative;padding:52px 44px;min-height:320px;display:flex;flex-direction:column;justify-content:center;max-width:760px;}
.cat-hero h1{color:#fff;}
.cat-hero__sub{margin-top:14px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.82);max-width:620px;}
.cat-hero__tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.cat-hero__tags span{
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);color:rgba(255,255,255,.9);
  font-size:13.5px;line-height:1.6;
}
.hero-stats{
  position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;background:var(--c-line);border-top:1px solid var(--c-line);
}
.hero-stats div{background:var(--c-surface);padding:18px 22px;}
.hero-stats b{display:block;font-size:22px;font-weight:800;color:var(--c-primary);line-height:1.3;}
.hero-stats small{display:block;font-size:13px;color:var(--c-ink-3);line-height:1.7;}

/* ---------- 锚点胶囊导航 ---------- */
.pill-nav{display:flex;flex-wrap:wrap;gap:10px;padding:28px 0 0;}
.pill{
  display:inline-flex;align-items:center;min-height:44px;padding:8px 18px;
  border-radius:var(--r-pill);border:1px solid var(--c-line);background:var(--c-surface);
  font-size:14.5px;color:var(--c-ink-2);transition:all var(--tr);
}
.pill:hover{border-color:rgba(214,73,42,.4);color:var(--c-primary);background:var(--c-primary-soft);}
.pill.is-current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600;}

/* ---------- 图文交替行 ---------- */
.alt-wrap{display:flex;flex-direction:column;gap:64px;}
.alt-row{
  display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;
  padding:28px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);transition:box-shadow var(--tr),border-color var(--tr);
}
.alt-row:hover{box-shadow:var(--sh-2);border-color:rgba(214,73,42,.35);}
.alt-row--reverse .alt-media{order:2;}
.alt-media{position:relative;overflow:hidden;border-radius:var(--r-img);background:var(--c-bg-2);}
.alt-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform var(--tr);}
.alt-row:hover .alt-media img{transform:scale(1.04);}
.alt-media__idx{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(18,33,28,.78);color:var(--c-accent);
  font-size:13px;font-weight:700;letter-spacing:.04em;
}
.alt-body .badge{margin-bottom:14px;}
.alt-body h2{font-size:clamp(21px,2.2vw,26px);margin-bottom:14px;}
.alt-body p{font-size:16px;line-height:1.95;color:var(--c-ink-2);}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--c-ink);line-height:1.8;
}
.check-list li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:9px;border-radius:50%;
  background:var(--c-primary-soft);box-shadow:inset 0 0 0 2px var(--c-primary);
}

/* ---------- 失败原因列表 ---------- */
.reason-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.reason-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:22px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:all var(--tr);
}
.reason-item:hover{box-shadow:var(--sh-2);border-color:rgba(214,73,42,.35);transform:translateY(-2px);}
.reason-num{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:800;font-size:14px;
}
.reason-item h3{font-size:16.5px;margin-bottom:6px;}
.reason-item p{font-size:14.5px;line-height:1.85;color:var(--c-ink-2);margin:0;}

/* ---------- FAQ ---------- */
.faq{margin-top:36px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;transition:border-color var(--tr),box-shadow var(--tr);
}
.faq-item:hover{border-color:rgba(214,73,42,.3);box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 26px;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  font-size:18px;font-weight:600;line-height:1;transition:transform .3s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item[open] summary{color:var(--c-primary-deep);}
.faq-item .faq-a{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--c-ink-2);}

/* ---------- 推荐卡片 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:all var(--tr);
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(214,73,42,.35);}
.rec-card__img{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-2);}
.rec-card__img img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr);}
.rec-card:hover .rec-card__img img{transform:scale(1.04);}
.rec-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-card__body h3{font-size:17px;line-height:1.5;}
.rec-card__body p{font-size:14px;color:var(--c-ink-2);line-height:1.8;margin:0;}
.rec-card__foot{margin-top:auto;font-size:13.5px;color:var(--c-ink-3);display:flex;justify-content:space-between;align-items:center;}

/* ---------- CTA 深色带 ---------- */
.cta-band{
  border-radius:var(--r-hero);overflow:hidden;position:relative;
  background:linear-gradient(135deg,var(--c-secondary) 0%,var(--c-dark) 100%);
  color:#fff;
}
.cta-band__bg{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-3.webp");background-size:cover;background-position:center;opacity:.16;}
.cta-inner{position:relative;display:grid;grid-template-columns:1.6fr 1fr;gap:40px;align-items:center;padding:56px 48px;}
.cta-inner h2{color:#fff;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:16px;line-height:1.9;margin:14px 0 0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.cta-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(224,169,74,.4);
  border-radius:var(--r-card);padding:24px;
}
.cta-card h3{color:#fff;font-size:16px;margin-bottom:12px;}
.cta-card ul{display:flex;flex-direction:column;gap:10px;}
.cta-card li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.8);line-height:1.7;}
.cta-card li::before{content:"›";color:var(--c-accent);font-weight:700;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);margin-top:88px;padding:68px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;}
.foot-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);}
.foot-col h3{
  position:relative;font-size:14px;font-weight:600;color:#fff;margin-bottom:18px;padding-bottom:10px;
}
.foot-col h3::after{content:"";position:absolute;left:0;bottom:0;width:18px;height:2px;border-radius:2px;background:var(--c-primary);}
.foot-col ul{display:flex;flex-direction:column;gap:12px;}
.foot-col ul a{font-size:14px;color:rgba(255,255,255,.72);}
.foot-col ul a:hover{color:var(--c-accent);}
.foot-qr{
  margin-top:16px;width:112px;height:112px;border-radius:var(--r-img);
  border:1px dashed rgba(255,255,255,.28);display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.5);padding:8px;
}
.foot-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 滚动显隐 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-list,.header-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{justify-content:space-between;}
  .section{padding:64px 0;}
  .alt-row{grid-template-columns:1fr;gap:24px;padding:22px;}
  .alt-row--reverse .alt-media{order:0;}
  .alt-media img{aspect-ratio:16/9;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .reason-list{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;padding:44px 32px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cat-hero__inner{padding:40px 28px;min-height:300px;}
}
@media (max-width:767px){
  .section{padding:52px 0;}
  .container{padding:0 18px;}
  .alt-wrap{gap:36px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .section-head .sh-desc{padding-left:0;}
  .hero-stats{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:1fr;}
  .cta-inner{padding:34px 22px;}
  .foot-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:52px;margin-top:56px;}
}
@media (max-width:520px){
  body{font-size:16px;}
  .logo{font-size:15px;}
  .logo em{display:none;}
  .cat-hero__inner{padding:30px 20px;min-height:0;}
  .cat-hero__tags span{font-size:12.5px;}
  .alt-row{padding:16px;}
  .cta-actions .btn{width:100%;}
  .faq-item summary{padding:16px 18px;font-size:15.5px;}
  .faq-item .faq-a{padding:0 18px 18px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#D6492A;
  --c-primary-deep:#A8351C;
  --c-primary-soft:#FBEAE3;
  --c-secondary:#17453A;
  --c-secondary-2:#2C6B58;
  --c-accent:#E0A94A;
  --c-bg:#FBF8F4;
  --c-bg-2:#F3EEE6;
  --c-surface:#FFFFFF;
  --c-ink:#1A1F1D;
  --c-ink-2:#5A6560;
  --c-ink-3:#8B948F;
  --c-line:#E5DDD2;
  --c-dark:#12211C;
  --r-hero:20px;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,33,28,.06);
  --sh-2:0 12px 28px -14px rgba(18,33,28,.24);
  --sh-3:0 24px 60px -24px rgba(18,33,28,.28);
  --ff:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Segoe UI",Roboto,sans-serif;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--ff);
  font-size:16.5px;
  line-height:1.95;
  color:var(--c-ink);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;background:var(--c-bg-2)}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;font-size:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .3s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-2)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:74px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-weight:800;font-size:18px;
  border-radius:9px;letter-spacing:0;
  box-shadow:0 6px 14px -8px rgba(214,73,42,.85);
}
.logo-text{font-size:16px;font-weight:800;color:var(--c-secondary);letter-spacing:.2px;white-space:nowrap}
.nav-list{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--c-ink-2);
  transition:color .22s ease,background-color .22s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-link.is-active{color:var(--c-primary);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 18px -12px rgba(214,73,42,.9)}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--c-surface);border-color:var(--c-line);color:var(--c-secondary)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:rgba(214,73,42,.35)}
.btn-light{background:transparent;border-color:rgba(224,169,74,.55);color:#F7F1E6}
.btn-light:hover{background:rgba(224,169,74,.16);border-color:var(--c-accent)}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);
  background:var(--c-surface);border-radius:var(--r-btn);cursor:pointer;
  align-items:center;justify-content:center;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-secondary);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-secondary);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.drawer{
  position:fixed;inset:0 0 0 auto;width:min(88vw,360px);
  background:var(--c-surface);box-shadow:var(--sh-3);
  transform:translateX(102%);transition:transform .32s cubic-bezier(.2,.7,.2,1);
  z-index:120;display:flex;flex-direction:column;padding:22px 0 0;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 16px;border-bottom:1px solid var(--c-line)}
.drawer-title{font-weight:800;color:var(--c-secondary);font-size:16px}
.drawer-close{width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:var(--c-surface);cursor:pointer;color:var(--c-ink-2);font-size:18px;line-height:1}
.drawer-nav{padding:12px 12px 0;overflow-y:auto;flex:1}
.drawer-nav a{
  display:flex;align-items:center;min-height:50px;padding:0 14px;border-radius:var(--r-btn);
  font-size:16px;color:var(--c-ink);border-bottom:1px solid transparent;
}
.drawer-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:700;background:var(--c-primary-soft)}
.drawer-foot{padding:16px 20px 26px;border-top:1px solid var(--c-line)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,33,28,.42);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:110;
}
.drawer-mask.is-show{opacity:1;visibility:visible}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:20px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-ink-3)}
.crumb a{color:var(--c-ink-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:var(--c-line)}
.crumb .now{color:var(--c-primary);font-weight:600}

/* ---------- page hero ---------- */
.hero-wrap{padding:18px 0 0}
.page-hero{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  min-height:320px;display:flex;align-items:flex-end;
  background-image:linear-gradient(105deg,rgba(18,33,28,.92) 0%,rgba(18,33,28,.72) 42%,rgba(18,33,28,.18) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  box-shadow:var(--sh-2);
}
.page-hero-inner{position:relative;padding:38px 40px 38px;max-width:760px;color:#fff}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(214,73,42,.92);color:#fff;
  font-size:13px;font-weight:600;letter-spacing:.4px;
}
.page-hero h1{
  margin:16px 0 0;
  font-size:clamp(30px,4.4vw,46px);font-weight:800;line-height:1.22;letter-spacing:-.01em;
}
.page-hero .hero-sub{
  margin-top:14px;font-size:16.5px;line-height:1.75;color:rgba(255,255,255,.9);max-width:600px;
}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;
}
.fact{
  min-width:132px;padding:12px 18px;border-radius:12px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
}
.fact b{display:block;font-size:22px;font-weight:800;color:var(--c-accent);line-height:1.3}
.fact span{font-size:13px;color:rgba(255,255,255,.82)}

/* ---------- chip nav ---------- */
.chip-bar{
  position:sticky;top:74px;z-index:60;
  background:rgba(251,248,244,.94);
  border-bottom:1px solid var(--c-line);
  margin-top:22px;
}
.chip-scroll{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none}
.chip-scroll::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border-radius:var(--r-pill);border:1px solid var(--c-line);background:var(--c-surface);
  font-size:14px;color:var(--c-ink-2);transition:all .22s ease;
}
.chip:hover{border-color:rgba(214,73,42,.4);color:var(--c-primary)}
.chip.is-current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}

/* ---------- section base ---------- */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--alt{background:var(--c-bg-2)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-title{position:relative;padding-left:16px;font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.35;color:var(--c-ink)}
.sec-title::before{
  content:"";position:absolute;left:0;top:.34em;width:18px;height:3px;border-radius:2px;background:var(--c-primary);
}
.sec-desc{margin-top:10px;font-size:14.5px;color:var(--c-ink-3)}
.sec-more{font-size:14.5px;color:var(--c-primary);font-weight:600;white-space:nowrap}
.sec-more:hover{color:var(--c-primary-deep)}

/* ---------- entry cards (2 col image-text) ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.entry-card{
  display:grid;grid-template-columns:216px 1fr;gap:0;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s ease,border-color .35s ease;
}
.entry-card:hover{transform:translateY(-2px);border-color:rgba(214,73,42,.35);box-shadow:var(--sh-2)}
.entry-media{overflow:hidden;background:var(--c-bg-2)}
.entry-media img{width:100%;height:100%;min-height:200px;object-fit:cover;transition:transform .45s cubic-bezier(.2,.7,.2,1)}
.entry-card:hover .entry-media img{transform:scale(1.04)}
.entry-body{padding:20px 22px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary-deep);font-size:13px;font-weight:600;
}
.entry-body h3{margin-top:12px;font-size:19px;font-weight:700;line-height:1.45;color:var(--c-ink)}
.entry-body p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}
.entry-meta{margin-top:16px;font-size:13.5px;color:var(--c-ink-3);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.entry-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-line)}

/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{
  position:relative;padding:28px 24px 26px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;background:var(--c-secondary);color:var(--c-accent);
  font-size:16px;font-weight:800;letter-spacing:.5px;
}
.step h3{margin-top:18px;font-size:19px;font-weight:700;color:var(--c-ink)}
.step p{margin-top:10px;font-size:15px;color:var(--c-ink-2);line-height:1.85}
.step .step-note{margin-top:14px;font-size:13.5px;color:var(--c-primary-deep);background:var(--c-primary-soft);border-radius:8px;padding:8px 12px}

/* ---------- spec list ---------- */
.spec-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden}
.spec-item{
  display:grid;grid-template-columns:300px 1fr;gap:24px;
  padding:20px 26px;border-bottom:1px solid var(--c-line);
  transition:background-color .22s ease;
}
.spec-item:last-child{border-bottom:0}
.spec-item:hover{background:var(--c-bg-2)}
.spec-key{font-size:15.5px;font-weight:700;color:var(--c-secondary);display:flex;gap:10px;align-items:flex-start}
.spec-key i{
  flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--c-primary);margin-top:11px;
}
.spec-val{font-size:15px;color:var(--c-ink-2);line-height:1.85}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(214,73,42,.3);box-shadow:var(--sh-1)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--c-ink);
  cursor:pointer;list-style:none;min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-plus{
  flex:0 0 auto;position:relative;width:20px;height:20px;transition:transform .3s ease;
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-plus::before{width:14px;height:2px}
.faq-plus::after{width:2px;height:14px}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--c-ink-2);line-height:1.9;border-top:1px dashed var(--c-line);margin-top:2px;padding-top:16px}

/* ---------- related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.rel-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease,border-color .3s ease;
}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(214,73,42,.35);box-shadow:var(--sh-2)}
.rel-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.rel-body{padding:14px 16px 18px}
.rel-body h3{font-size:15.5px;font-weight:700;line-height:1.5;color:var(--c-ink)}
.rel-body p{margin-top:8px;font-size:13.5px;color:var(--c-ink-3);line-height:1.7}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--c-secondary) 0%,var(--c-dark) 100%);
  color:#F5F0E7;
}
.cta-inner{
  display:grid;grid-template-columns:1.4fr .9fr;gap:40px;align-items:center;
  padding:72px 0;
}
.cta-inner h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.35;color:#fff}
.cta-inner p{margin-top:14px;font-size:15.5px;color:rgba(245,240,231,.82);line-height:1.85;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(224,169,74,.35);
  border-radius:var(--r-card);padding:24px;
}
.cta-card h3{font-size:16px;color:#fff;font-weight:700}
.cta-card ul{margin-top:14px;display:grid;gap:10px}
.cta-card li{font-size:14.5px;color:rgba(245,240,231,.8);display:flex;gap:10px}
.cta-card li b{color:var(--c-accent);font-weight:700}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(245,240,231,.72);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff}
.foot-brand .logo-mark{width:34px;height:34px;font-size:16px}
.foot-col p{margin-top:16px;font-size:14.5px;line-height:1.9;color:rgba(245,240,231,.66)}
.foot-col h3{
  position:relative;padding-left:14px;font-size:14px;font-weight:600;color:#fff;letter-spacing:.3px;
}
.foot-col h3::before{content:"";position:absolute;left:0;top:.5em;width:12px;height:2px;background:var(--c-primary);border-radius:2px}
.foot-col ul{margin-top:18px;display:grid;gap:11px}
.foot-col ul a{font-size:14.5px;color:rgba(245,240,231,.72);transition:color .22s ease}
.foot-col ul a:hover{color:var(--c-accent)}
.foot-qr{
  margin-top:18px;width:118px;height:118px;border-radius:12px;
  border:1px dashed rgba(224,169,74,.5);background:rgba(255,255,255,.05);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;color:rgba(245,240,231,.6);line-height:1.7;
}
.foot-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(245,240,231,.5);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .nav-link{padding:0 11px;font-size:14.5px}
  .logo-text{font-size:15px}
}
@media (max-width:1023px){
  .nav-list,.header-actions .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .entry-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr 1fr}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:28px;padding:56px 0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .spec-item{grid-template-columns:1fr;gap:8px}
  .chip-bar{top:74px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .logo-text{font-size:14.5px;white-space:normal;line-height:1.3}
  .page-hero{min-height:280px;border-radius:16px}
  .page-hero-inner{padding:28px 22px}
  .hero-sub{font-size:15px}
  .fact{min-width:0;flex:1 1 40%}
  .entry-card{grid-template-columns:1fr}
  .entry-media img{min-height:0;height:190px}
  .step-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section{padding:52px 0}
  .chip-bar{top:74px}
}
@media (max-width:479px){
  body{font-size:16px}
  .btn{width:100%}
  .cta-actions{flex-direction:column}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column}
}

/* roulang page: category3 */
:root{
  --c-primary:#D6492A;
  --c-primary-deep:#A8351C;
  --c-primary-soft:#FBEAE3;
  --c-secondary:#17453A;
  --c-secondary-2:#2C6B58;
  --c-accent:#E0A94A;
  --c-bg:#FBF8F4;
  --c-bg-2:#F3EEE6;
  --c-surface:#FFFFFF;
  --c-ink:#1A1F1D;
  --c-ink-2:#5A6560;
  --c-ink-3:#8B948F;
  --c-line:#E5DDD2;
  --c-dark:#12211C;
  --r-hero:20px;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,33,28,.06);
  --sh-2:0 12px 28px -14px rgba(18,33,28,.24);
  --sh-3:0 24px 60px -24px rgba(18,33,28,.28);
  --pad-y:88px;
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.95;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--c-primary);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px -18px rgba(18,33,28,.38);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:70px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--c-primary);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;letter-spacing:0;
  box-shadow:0 6px 14px -8px rgba(214,73,42,.9);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--c-ink);white-space:nowrap;}
.nav-list{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;
  padding:0 12px;
  font-size:15px;
  color:var(--c-ink-2);
  border-radius:8px;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:8px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.link-quiet{font-size:15px;color:var(--c-ink-2);}
.link-quiet:hover{color:var(--c-primary);}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--c-line);
  align-items:center;justify-content:center;
  background:var(--c-surface);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:var(--c-surface);
  padding:12px 0 20px;
  box-shadow:var(--sh-3);
}
.mobile-drawer.is-open{display:block;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 24px;font-size:16px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.drawer-link.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-soft);}
.drawer-cta{padding:18px 24px 0;}
.drawer-cta .btn{width:100%;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;
  border:1px solid transparent;
  transition:transform .2s ease,background .25s ease,color .25s ease,border-color .25s ease,box-shadow .25s ease;
  white-space:nowrap;
}
.btn-sm{min-height:42px;padding:0 18px;font-size:15px;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(214,73,42,.95);}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:var(--c-surface);color:var(--c-secondary);border-color:var(--c-line);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:rgba(214,73,42,.4);color:var(--c-primary-deep);}
.btn-line{background:transparent;color:#F6EFE6;border-color:rgba(246,239,230,.45);}
.btn-line:hover{background:rgba(246,239,230,.12);color:#fff;border-color:rgba(246,239,230,.8);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;}

/* ---------- Breadcrumb ---------- */
.crumb-bar{background:var(--c-bg-2);border-bottom:1px solid var(--c-line);}
.crumb{
  display:flex;align-items:center;gap:8px;
  min-height:46px;font-size:13.5px;color:var(--c-ink-3);flex-wrap:wrap;
}
.crumb a{color:var(--c-ink-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-ink-3);}
.crumb .current{color:var(--c-ink);font-weight:600;}

/* ---------- Category hero ---------- */
.cat-hero{
  position:relative;
  border-radius:var(--r-hero);
  overflow:hidden;
  min-height:300px;
  margin:32px 0 0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  display:flex;
  align-items:center;
  box-shadow:var(--sh-2);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(120% 130% at 12% 40%,rgba(18,33,28,.9) 0%,rgba(18,33,28,.6) 45%,rgba(18,33,28,.18) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding:52px 48px;max-width:760px;}
.tag-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(224,169,74,.2);
  border:1px solid rgba(224,169,74,.6);
  color:#F4DDAB;font-size:13px;font-weight:600;
  letter-spacing:.02em;
}
.cat-hero h1{
  margin-top:18px;
  font-size:clamp(30px,4.4vw,46px);
  font-weight:800;line-height:1.22;letter-spacing:-.01em;
  color:#fff;
}
.cat-hero p{
  margin-top:16px;
  font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.82);
  max-width:620px;
}
.cat-hero-actions{margin-top:28px;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- Pill nav ---------- */
.pill-nav{
  position:sticky;top:70px;z-index:30;
  background:var(--c-bg);
  padding:20px 0 0;
}
.pill-row{
  display:flex;gap:10px;overflow-x:auto;padding-bottom:14px;
  scrollbar-width:none;
}
.pill-row::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--c-ink-2);font-size:14.5px;
  transition:all .22s ease;
}
.pill:hover{border-color:rgba(214,73,42,.4);color:var(--c-primary);background:var(--c-primary-soft);}
.pill.is-current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600;}
.pill.is-current:hover{background:var(--c-primary-deep);color:#fff;}

/* ---------- Sections ---------- */
.section{padding:var(--pad-y) 0;}
.section--tight{padding-top:56px;}
.section--alt{background:var(--c-bg-2);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;flex-wrap:wrap;
}
.section-title{
  display:flex;align-items:center;gap:12px;
  font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.35;letter-spacing:-.01em;
}
.section-title::before{
  content:"";flex:0 0 auto;width:18px;height:3px;border-radius:3px;background:var(--c-primary);
}
.section-note{margin-top:12px;font-size:13.5px;color:var(--c-ink-3);max-width:640px;}
.link-more{font-size:14.5px;color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;min-height:44px;}
.link-more:hover{color:var(--c-primary-deep);}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-left:0;}
.timeline::before{
  content:"";position:absolute;left:27px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--c-primary) 0%,var(--c-secondary-2) 55%,var(--c-line) 100%);
  border-radius:2px;
}
.tl-item{
  position:relative;
  display:grid;grid-template-columns:56px 1fr;gap:24px;
  padding:0 0 36px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-marker{
  position:relative;z-index:2;
  width:56px;height:56px;border-radius:50%;
  background:var(--c-surface);
  border:2px solid var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -12px rgba(214,73,42,.9);
}
.tl-num{font-size:16px;font-weight:800;color:var(--c-primary);letter-spacing:.02em;}
.tl-item:nth-child(n+4) .tl-marker{border-color:var(--c-secondary-2);}
.tl-item:nth-child(n+4) .tl-num{color:var(--c-secondary-2);}
.tl-body{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-1);
  transition:box-shadow .3s ease,border-color .3s ease,transform .3s ease;
}
.tl-body:hover{box-shadow:var(--sh-2);border-color:rgba(214,73,42,.35);transform:translateY(-2px);}
.tl-body h3{font-size:20px;font-weight:600;line-height:1.45;}
.tl-body > p{margin-top:10px;font-size:15.5px;color:var(--c-ink-2);}
.tl-points{margin-top:14px;display:grid;gap:8px;}
.tl-points li{
  position:relative;padding-left:18px;
  font-size:14.5px;color:var(--c-ink-2);line-height:1.7;
}
.tl-points li::before{
  content:"";position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--c-secondary-2);
}
.tl-meta{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap;}
.chip{
  display:inline-flex;align-items:center;
  padding:3px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  font-size:13px;font-weight:600;
}
.chip--muted{background:var(--c-bg-2);color:var(--c-ink-2);}

/* ---------- Spec list ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.spec-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:box-shadow .3s ease,border-color .3s ease;
}
.spec-card:hover{box-shadow:var(--sh-2);border-color:rgba(214,73,42,.3);}
.spec-card h3{font-size:17px;font-weight:700;display:flex;align-items:center;gap:10px;}
.spec-card h3 .idx{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;
  background:var(--c-bg-2);color:var(--c-ink-2);
  font-size:13px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.spec-list{margin-top:14px;border-top:1px solid var(--c-line);}
.spec-list li{
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:11px 0;border-bottom:1px solid var(--c-line);
  font-size:14.5px;color:var(--c-ink-2);line-height:1.7;
}
.spec-list li:last-child{border-bottom:0;padding-bottom:0;}
.spec-key{color:var(--c-ink);font-weight:600;flex:0 0 auto;}
.spec-val{text-align:right;color:var(--c-ink-2);}

/* ---------- Data strip ---------- */
.data-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  margin-top:36px;
}
.data-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-left:3px solid var(--c-primary);
  border-radius:var(--r-card);
  padding:20px 24px;
  box-shadow:var(--sh-1);
}
.data-item .num{
  font-size:30px;font-weight:800;color:var(--c-primary);line-height:1.2;letter-spacing:-.02em;
}
.data-item .num small{font-size:15px;font-weight:600;margin-left:2px;}
.data-item .label{margin-top:6px;font-size:14px;color:var(--c-ink-2);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:0 22px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(214,73,42,.3);box-shadow:var(--sh-1);}
.faq-item[open]{border-color:rgba(214,73,42,.42);box-shadow:var(--sh-2);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:14px;
  min-height:64px;padding:14px 0;
  font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{
  flex:0 0 auto;width:22px;height:22px;position:relative;margin-left:auto;
  transition:transform .3s ease;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-item summary .plus::before{width:14px;height:2px;}
.faq-item summary .plus::after{width:2px;height:14px;}
.faq-item[open] summary .plus{transform:rotate(45deg);}
.faq-body{padding:0 0 20px;font-size:15px;line-height:1.9;color:var(--c-ink-2);border-top:1px solid var(--c-line);padding-top:16px;}

/* ---------- Recommend ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.rec-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .45s cubic-bezier(.2,.7,.2,1),box-shadow .35s ease,border-color .35s ease;
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(214,73,42,.35);}
.rec-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-2);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s cubic-bezier(.2,.7,.2,1);}
.rec-card:hover .rec-thumb img{transform:scale(1.04);}
.rec-body{padding:16px 18px 18px;}
.rec-body h3{
  font-size:15.5px;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-body .chip{margin-top:10px;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--c-secondary) 0%,var(--c-dark) 100%);
  border-radius:var(--r-hero);
  padding:56px 48px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(224,169,74,.28);
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.35;letter-spacing:-.01em;}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.76);font-size:15.5px;max-width:560px;}
.cta-actions{margin-top:26px;display:flex;gap:14px;flex-wrap:wrap;}
.cta-card{
  position:relative;z-index:2;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(224,169,74,.34);
  border-radius:var(--r-card);
  padding:24px;
}
.cta-card h3{color:#F4DDAB;font-size:15px;font-weight:600;letter-spacing:.02em;}
.cta-card ul{margin-top:14px;display:grid;gap:10px;}
.cta-card li{color:rgba(255,255,255,.82);font-size:14.5px;line-height:1.7;padding-left:16px;position:relative;}
.cta-card li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--c-accent);}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:88px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;}
.foot-brand .logo-mark{width:30px;height:30px;border-radius:8px;font-size:15px;}
.foot-col p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);}
.foot-col h3{
  font-size:14px;font-weight:600;color:#fff;letter-spacing:.02em;
  padding-bottom:10px;position:relative;
}
.foot-col h3::after{content:"";position:absolute;left:0;bottom:0;width:20px;height:2px;background:var(--c-primary);border-radius:2px;}
.foot-col ul{margin-top:16px;display:grid;gap:10px;}
.foot-col li a{font-size:14px;color:rgba(255,255,255,.66);}
.foot-col li a:hover{color:#fff;}
.foot-qr{
  margin-top:16px;width:104px;height:104px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.28);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;line-height:1.6;color:rgba(255,255,255,.5);
}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1);}
.reveal.in-view{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  :root{--pad-y:72px;}
  .rec-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  :root{--pad-y:64px;}
  .nav-list{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-primary{display:none;}
  .link-quiet{display:none;}
  .cat-hero-inner{padding:44px 32px;}
  .spec-grid{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:44px 32px;}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media (max-width:767px){
  :root{--pad-y:52px;}
  body{font-size:16px;}
  .container{padding:0 18px;}
  .logo-text{font-size:15px;}
  .cat-hero{min-height:260px;margin-top:20px;border-radius:16px;}
  .cat-hero-inner{padding:32px 22px;}
  .cat-hero-actions .btn{width:100%;}
  .section-head{margin-bottom:28px;}
  .timeline::before{left:21px;}
  .tl-item{grid-template-columns:44px 1fr;gap:16px;padding-bottom:24px;}
  .tl-marker{width:44px;height:44px;}
  .tl-num{font-size:14px;}
  .tl-body{padding:18px 18px;}
  .data-strip{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:48px 0 24px;margin-top:56px;}
  .foot-bottom{flex-direction:column;gap:8px;}
  .cta-band{padding:32px 22px;border-radius:16px;}
  .pill-nav{top:70px;}
}
@media (max-width:479px){
  .logo-text{font-size:14px;}
  .cat-hero h1{font-size:28px;}
  .btn{width:100%;}
  .hero-actions .btn,.cat-hero-actions .btn,.cta-actions .btn{width:100%;}
  .spec-list li{flex-direction:column;gap:2px;}
  .spec-val{text-align:left;}
}

/* roulang page: category4 */
:root{
  --c-primary:#D6492A;
  --c-primary-deep:#A8351C;
  --c-primary-soft:#FBEAE3;
  --c-secondary:#17453A;
  --c-secondary-2:#2C6B58;
  --c-accent:#E0A94A;
  --c-bg:#FBF8F4;
  --c-bg-2:#F3EEE6;
  --c-surface:#FFFFFF;
  --c-ink:#1A1F1D;
  --c-ink-2:#5A6560;
  --c-ink-3:#8B948F;
  --c-line:#E5DDD2;
  --c-dark:#12211C;
  --r-hero:20px;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,33,28,.06);
  --sh-2:0 12px 28px -14px rgba(18,33,28,.24);
  --sh-3:0 24px 60px -24px rgba(18,33,28,.28);
  --sp:8px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.95;
  color:var(--c-ink);
  background:var(--c-bg);
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:0;list-style:none}
p+p{margin-top:1.1em}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:min(1200px,100% - 40px);margin-inline:auto}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-primary);color:#fff;padding:10px 16px;z-index:99;border-radius:0 0 var(--r-btn) 0}
.skip-link:focus{left:0}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .28s ease}
.site-header.is-scrolled{box-shadow:0 10px 26px -20px rgba(18,33,28,.5)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;padding:10px 0}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--c-primary);white-space:nowrap}
.logo-mark{width:30px;height:30px;flex:0 0 30px;border-radius:8px;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:800;letter-spacing:0}
.nav-list{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:8px 14px;border-radius:999px;font-size:15px;color:var(--c-ink-2);transition:color .2s ease,background-color .2s ease}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;background:var(--c-primary)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);background:var(--c-surface);border-radius:var(--r-btn);align-items:center;justify-content:center;cursor:pointer;margin-left:auto}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .25s ease}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-active span{background:transparent}
.nav-toggle.is-active span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-active span::after{transform:translateY(-6px) rotate(-45deg)}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(18,33,28,.42);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);background:var(--c-surface);box-shadow:var(--sh-3);transform:translateX(102%);transition:transform .3s cubic-bezier(.2,.7,.2,1);z-index:80;display:flex;flex-direction:column;padding:22px 20px 26px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--c-line)}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-ink-2)}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-line);background:var(--c-surface);border-radius:var(--r-btn);cursor:pointer;font-size:18px;line-height:1;color:var(--c-ink-2)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:16px}
.drawer-nav a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:var(--r-btn);background:var(--c-bg-2);font-size:15.5px;color:var(--c-ink)}
.drawer-nav a.is-active{background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:18px;font-size:13.5px;color:var(--c-ink-3)}
body.drawer-open{overflow:hidden}

/* ---------- hero ---------- */
.hero{position:relative;margin:22px auto 0;width:min(1200px,100% - 40px);border-radius:var(--r-hero);overflow:hidden;background:#1b2a24}
.hero-bg{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center;filter:saturate(.85)}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 12% 20%,rgba(18,33,28,.86) 0%,rgba(18,33,28,.62) 45%,rgba(18,33,28,.34) 100%)}
.hero-inner{position:relative;z-index:2;padding:34px 40px 48px;min-height:270px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:6px}
.crumb a{color:rgba(255,255,255,.86)}
.crumb a:hover{color:#fff;text-decoration:underline}
.crumb span.sep{opacity:.5}
.hero h1{color:#fff;font-size:clamp(28px,3.6vw,40px);line-height:1.24;font-weight:800;letter-spacing:-.01em;max-width:760px}
.hero p{color:rgba(255,255,255,.84);max-width:660px;font-size:16px;line-height:1.85}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.hero-tag{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);color:#fff;font-size:13.5px}

/* ---------- pill nav ---------- */
.pill-bar{position:relative;z-index:5;width:min(1200px,100% - 40px);margin:-22px auto 0}
.pill-nav{display:flex;flex-wrap:wrap;gap:10px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:999px;padding:10px 14px;box-shadow:var(--sh-1)}
.pill-nav a{padding:8px 18px;border-radius:999px;font-size:14.5px;color:var(--c-ink-2);transition:all .2s ease;min-height:40px;display:inline-flex;align-items:center}
.pill-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary-deep)}
.pill-nav a.is-current{background:var(--c-primary);color:#fff;font-weight:600}

/* ---------- sections ---------- */
.sec{padding:64px 0}
.sec--tight{padding:48px 0}
.sec--alt{background:var(--c-bg-2)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.sec-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;font-weight:700;position:relative;padding-left:16px}
.sec-head h2::before{content:"";position:absolute;left:0;top:.36em;width:4px;height:.86em;border-radius:3px;background:var(--c-primary)}
.sec-head .sub{font-size:13.5px;color:var(--c-ink-3);margin-top:8px;padding-left:16px}
.sec-head .more{font-size:14px;color:var(--c-primary);white-space:nowrap}
.sec-head .more:hover{text-decoration:underline}
.lead{color:var(--c-ink-2);max-width:820px;margin-bottom:26px}

/* ---------- spec cards ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.spec-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease,border-color .3s ease;display:flex;flex-direction:column}
.spec-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(214,73,42,.35)}
.spec-no{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--c-accent)}
.spec-card h3{font-size:18px;line-height:1.5;font-weight:700;margin:8px 0 14px}
.spec-rows{display:flex;flex-direction:column;gap:0;margin-top:auto}
.spec-row{display:flex;gap:12px;padding:9px 0;border-top:1px dashed var(--c-line);font-size:14.5px}
.spec-row dt{flex:0 0 82px;color:var(--c-ink-3);font-size:13.5px;line-height:1.85}
.spec-row dd{margin:0;color:var(--c-ink-2);line-height:1.75}
.badge{display:inline-flex;align-items:center;padding:3px 11px;border-radius:999px;background:var(--c-primary-soft);color:var(--c-primary-deep);font-size:13px;font-weight:600}

/* ---------- prep block ---------- */
.prep{display:grid;grid-template-columns:5fr 7fr;gap:34px;align-items:center;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1)}
.prep-media{border-radius:var(--r-img);overflow:hidden}
.prep-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;border-radius:var(--r-img)}
.prep h2{font-size:clamp(21px,2.2vw,26px);line-height:1.4;font-weight:700}
.prep p{color:var(--c-ink-2);margin-top:12px}
.prep-list{margin-top:16px;display:grid;gap:10px}
.prep-list li{display:flex;gap:10px;font-size:15px;color:var(--c-ink-2)}
.prep-list li::before{content:"";flex:0 0 8px;height:8px;margin-top:12px;border-radius:50%;background:var(--c-primary);opacity:.85}

/* ---------- compare list ---------- */
.compare{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.cmp-head{display:grid;grid-template-columns:1.05fr 1.3fr 130px;gap:16px;padding:16px 24px;background:var(--c-secondary);color:rgba(255,255,255,.9);font-size:14px;font-weight:600;letter-spacing:.02em}
.cmp-row{display:grid;grid-template-columns:1.05fr 1.3fr 130px;gap:16px;padding:18px 24px;border-top:1px dashed var(--c-line);align-items:start;transition:background-color .22s ease}
.cmp-row:hover{background:var(--c-bg)}
.cmp-row .symptom{font-weight:600;font-size:15.5px;line-height:1.7}
.cmp-row .action{color:var(--c-ink-2);font-size:15px;line-height:1.8}
.cmp-row .cost{font-size:13.5px;color:var(--c-ink-3)}
.cmp-row .cost b{display:block;color:var(--c-secondary);font-size:14px}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--c-primary);margin-right:8px;vertical-align:2px}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--c-primary-soft),var(--c-line))}
.tl-item{position:relative;padding:0 0 26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-34px;top:9px;width:20px;height:20px;border-radius:50%;background:var(--c-surface);border:2px solid var(--c-primary)}
.tl-item h3{font-size:17.5px;font-weight:700;line-height:1.5}
.tl-item p{color:var(--c-ink-2);font-size:15.5px;margin-top:6px}
.tl-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px 40px}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px;max-width:900px}
.faq details{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:border-color .22s ease,box-shadow .22s ease}
.faq details:hover{border-color:rgba(214,73,42,.3)}
.faq details[open]{box-shadow:var(--sh-2)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:16px 20px;font-size:16px;font-weight:600;min-height:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";flex:0 0 24px;height:24px;display:grid;place-items:center;border-radius:8px;background:var(--c-primary-soft);color:var(--c-primary-deep);font-size:16px;font-weight:700;line-height:1;transition:transform .25s ease}
.faq details[open] summary::before{transform:rotate(45deg)}
.faq .ans{padding:0 20px 18px 58px;font-size:15px;color:var(--c-ink-2);line-height:1.9}

/* ---------- related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.rel-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s ease,border-color .35s ease;display:flex;flex-direction:column}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(214,73,42,.35)}
.rel-thumb{aspect-ratio:16/10;overflow:hidden;border-radius:0}
.rel-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .45s cubic-bezier(.2,.7,.2,1)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px}
.rel-body .tag{align-self:flex-start}
.rel-body h3{font-size:16px;font-weight:700;line-height:1.55}
.rel-body p{font-size:14px;color:var(--c-ink-3);line-height:1.75}

/* ---------- cta ---------- */
.cta{background:linear-gradient(120deg,var(--c-secondary),var(--c-dark));color:#fff;border-radius:var(--r-hero);padding:44px 40px;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center}
.cta h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;font-weight:700}
.cta p{color:rgba(255,255,255,.78);margin-top:12px;font-size:15.5px}
.btn-group{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .22s ease;text-align:center}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px)}
.btn-ghost{background:var(--c-surface);border-color:var(--c-secondary-2);color:var(--c-secondary)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-deep)}
.btn-line{background:transparent;border-color:rgba(224,169,74,.72);color:#F6E3C2}
.btn-line:hover{background:rgba(224,169,74,.16);color:#fff}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none}
.cta-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);padding:20px}
.cta-card h3{font-size:15px;font-weight:700;color:#F6E3C2;letter-spacing:.02em}
.cta-card ul{margin-top:12px;display:grid;gap:10px}
.cta-card li{font-size:14.5px;color:rgba(255,255,255,.82);display:flex;gap:8px}
.cta-card li::before{content:"";flex:0 0 6px;height:6px;margin-top:10px;border-radius:50%;background:var(--c-accent)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.78);padding:56px 0 0;margin-top:64px;font-size:15px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:34px;padding-bottom:38px}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.foot-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66)}
.foot-col h3{font-size:14px;font-weight:600;color:#fff;position:relative;padding-left:12px;margin-bottom:16px}
.foot-col h3::before{content:"";position:absolute;left:0;top:.34em;width:3px;height:.82em;border-radius:2px;background:var(--c-primary)}
.foot-col ul{display:grid;gap:10px}
.foot-col ul a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s ease}
.foot-col ul a:hover{color:var(--c-primary)}
.foot-qr{width:112px;height:112px;border-radius:12px;border:1px dashed rgba(255,255,255,.3);display:grid;place-items:center;text-align:center;font-size:12.5px;color:rgba(255,255,255,.6);line-height:1.7;margin-top:14px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .spec-grid{grid-template-columns:repeat(2,1fr)}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .nav-list{display:none}
  .nav-toggle{display:inline-flex}
  .hero-inner{padding:28px 26px 40px;min-height:250px}
  .prep{grid-template-columns:1fr;gap:22px}
  .cta{grid-template-columns:1fr;padding:34px 26px}
  .cmp-head{display:none}
  .cmp-row{grid-template-columns:1fr;gap:8px}
  .tl-grid{grid-template-columns:1fr;gap:0}
  .sec{padding:52px 0}
}
@media (max-width:768px){
  body{font-size:16px}
  .container,.hero,.pill-bar{width:min(1200px,100% - 28px)}
  .header-inner{min-height:64px}
  .logo{font-size:16.5px}
  .logo-mark{width:26px;height:26px;flex-basis:26px;font-size:13px}
  .hero-inner{padding:22px 20px 32px}
  .pill-nav{border-radius:16px;padding:10px}
  .pill-nav a{padding:8px 14px;font-size:14px}
  .spec-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:6px}
  .faq .ans{padding-left:20px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:520px){
  .btn{width:100%}
  .btn-group{flex-direction:column}
  .foot-grid{grid-template-columns:1fr}
  .hero-tags{gap:8px}
  .hero-tag{font-size:12.5px;padding:5px 11px}
  .cmp-row{padding:16px 18px}
}