/* roulang page: index */
:root{
  --ink:#12141A;
  --ink-soft:#4A4F57;
  --line:#E4E6E1;
  --bg:#F6F7F4;
  --surface:#FFFFFF;
  --primary:#0F5A4B;
  --primary-deep:#0A3D33;
  --primary-soft:#E3EDE8;
  --accent:#C6F24E;
  --footer-deep:#0E1513;
  --radius-ctl:10px;
  --radius-card:16px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-card:0 8px 24px rgba(18,20,26,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --header-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'PingFang SC','HarmonyOS Sans SC','Noto Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:0 0 0 3px rgba(198,242,78,.6)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
.container-wide{width:100%;max-width:1320px;margin:0 auto;padding:0 16px}
@media (min-width:768px){
  .container,.container-wide{padding:0 24px}
}
@media (min-width:1024px){
  .container,.container-wide{padding:0 40px}
}
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:104px 0}}
.eyebrow{
  font-size:12.5px;
  letter-spacing:.16em;
  font-weight:700;
  color:var(--primary);
  text-transform:uppercase;
}
.hero-title{
  font-size:clamp(32px,4.4vw,62px);
  line-height:1.08;
  font-weight:800;
  letter-spacing:-.02em;
}
.section-title{
  font-size:clamp(24px,2.6vw,38px);
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.01em;
}
.lead{font-size:15.5px;line-height:1.85;color:var(--ink-soft)}
.muted{font-size:13.5px;line-height:1.7;color:var(--ink-soft)}

/* header */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:transparent;
  transition:background .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,247,244,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  transition:height .24s var(--ease);
}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand__mark{width:24px;height:24px;flex:0 0 24px;color:var(--primary)}
.brand__text{
  font-size:17px;
  font-weight:800;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.nav-links{display:none;align-items:center;gap:28px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-soft);
  padding:6px 0;
  transition:color .2s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;width:0;
  background:var(--primary);
  transition:width .22s var(--ease);
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{width:100%}
.nav-actions{display:none;align-items:center;gap:12px}
@media (min-width:1024px){.nav-actions{display:flex}}
.search-box{position:relative;width:232px}
.search-box svg{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:var(--ink-soft);pointer-events:none;
}
.search-box input{
  width:100%;
  height:42px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--surface);
  padding:0 16px 0 40px;
  font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box input::placeholder{color:#8B9099}
.search-box input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(198,242,78,.6);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  min-height:44px;
  padding:0 24px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--primary);transform:translateY(-2px);box-shadow:0 8px 24px rgba(18,20,26,.16)}
.btn-outline{border-color:var(--line);color:var(--ink);background:transparent}
.btn-outline:hover{background:rgba(15,90,75,.06);border-color:rgba(15,90,75,.35);color:var(--primary)}
.btn-ghost{color:var(--primary);padding:0 8px}
.btn-ghost:hover{color:var(--primary-deep)}
.btn-onDark{background:var(--surface);color:var(--ink)}
.btn-onDark:hover{background:var(--accent);color:var(--ink)}
.btn-outlineDark{border-color:rgba(255,255,255,.28);color:#fff}
.btn-outlineDark:hover{background:rgba(255,255,255,.1)}
.burger{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-ctl);
  background:var(--surface);
}
@media (min-width:1024px){.burger{display:none}}
.drawer-mask{
  position:fixed;inset:0;z-index:60;
  background:rgba(18,20,26,.45);
  opacity:0;pointer-events:none;
  transition:opacity .24s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;z-index:61;
  width:280px;height:100%;
  background:var(--surface);
  padding:22px;
  display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);
  transition:transform .26s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:none}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer__link{
  padding:13px 4px;
  font-size:15.5px;
  font-weight:500;
  color:var(--ink-soft);
  border-bottom:1px solid var(--line);
}
.drawer__link.is-active{color:var(--primary);font-weight:700}
.drawer__foot{margin-top:auto;padding-top:18px;display:grid;gap:10px}
.drawer .search-box{width:100%}

/* hero */
.hero{position:relative;overflow:hidden;padding-top:32px}
.hero__grid{display:grid;gap:36px;align-items:center}
@media (min-width:1024px){
  .hero__grid{grid-template-columns:7fr 5fr;gap:56px;min-height:620px}
}
.hero__media{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/11;
  background:var(--surface);
}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero__badge{
  position:absolute;left:18px;bottom:18px;
  background:rgba(255,255,255,.94);
  border-radius:var(--radius-pill);
  padding:9px 16px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;align-items:center;gap:8px;
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block}
.hero__marks{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px}
.mark{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft)}
.mark svg{width:16px;height:16px;color:var(--primary);flex:0 0 16px}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero__rule{height:1px;background:var(--line);margin:34px 0 0}

/* guarantee strip */
.strip{background:var(--footer-deep);color:#fff}
.strip__grid{display:grid;gap:26px;padding:40px 0}
@media (min-width:640px){.strip__grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){
  .strip__grid{grid-template-columns:repeat(4,1fr);gap:0;padding:46px 0}
  .strip__item + .strip__item{border-left:1px solid rgba(255,255,255,.12);padding-left:32px}
}
.strip__item{display:flex;gap:14px}
.strip__item svg{width:22px;height:22px;color:var(--accent);flex:0 0 22px;margin-top:4px}
.strip__title{font-size:15px;font-weight:600;line-height:1.6}
.strip__desc{font-size:13px;line-height:1.7;color:rgba(255,255,255,.62);margin-top:4px}

/* cards */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-card);
  border-color:rgba(15,90,75,.3);
}
.card__media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--primary-soft);
}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card__media img{transform:scale(1.03)}
.card__badge{
  position:absolute;left:14px;top:14px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--primary-soft);
  color:var(--primary);
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:600;
  padding:5px 12px;
  line-height:1.5;
}
.card__body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__title{font-size:17px;font-weight:600;line-height:1.5}
.card__desc{font-size:14px;line-height:1.75;color:var(--ink-soft)}
.card__foot{
  margin-top:auto;padding-top:12px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-soft);
}
.arrow{width:18px;height:18px;color:var(--primary);transition:transform .22s var(--ease)}
.card:hover .arrow{transform:translateX(3px)}

/* process timeline */
.steps{display:grid;gap:0;border-top:1px solid var(--line)}
.step{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:16px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
  align-items:start;
}
@media (min-width:768px){
  .step{grid-template-columns:120px 1fr;gap:28px;padding:32px 0}
}
.step__num{
  font-size:34px;
  font-weight:800;
  line-height:1;
  color:var(--primary);
  letter-spacing:-.02em;
}
@media (min-width:768px){.step__num{font-size:48px}}
.step__title{font-size:19px;font-weight:600;line-height:1.4}
.step__desc{font-size:14.5px;line-height:1.8;color:var(--ink-soft);margin-top:8px;max-width:640px}
.metrics{
  display:grid;gap:16px;
  grid-template-columns:repeat(2,1fr);
}
@media (min-width:1024px){.metrics{grid-template-columns:repeat(4,1fr);gap:20px}}
.metric{
  background:var(--primary-soft);
  border-radius:var(--radius-card);
  padding:24px 22px;
}
.metric__num{font-size:28px;font-weight:800;color:var(--primary-deep);line-height:1.2}
@media (min-width:1024px){.metric__num{font-size:32px}}
.metric__label{font-size:13.5px;color:var(--ink-soft);margin-top:8px;line-height:1.7}

/* reviews */
.reviews-track{
  display:flex;
  gap:20px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding-bottom:6px;
}
.reviews-track::-webkit-scrollbar{display:none}
.review-card{
  position:relative;
  scroll-snap-align:start;
  flex:0 0 86%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  overflow:hidden;
}
@media (min-width:768px){.review-card{flex:0 0 calc((100% - 20px)/2)}}
@media (min-width:1024px){.review-card{flex:0 0 calc((100% - 40px)/3)}}
.review-card__quote{
  position:absolute;right:18px;top:6px;
  font-size:96px;line-height:1;
  color:var(--primary);
  opacity:.06;
  font-weight:800;
  pointer-events:none;
}
.review-card__text{position:relative;font-size:15.5px;line-height:1.9;color:var(--ink)}
.review-card__foot{
  display:flex;align-items:center;gap:12px;margin-top:22px;
  padding-top:18px;border-top:1px solid var(--line);
}
.avatar{
  width:40px;height:40px;border-radius:50%;
  background:var(--primary-soft);
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;flex:0 0 40px;
}
.review-card__name{font-size:14.5px;font-weight:600;line-height:1.4}
.review-card__role{font-size:12.5px;color:var(--ink-soft);line-height:1.5}
.stars{display:flex;gap:2px;margin-top:6px}
.stars svg{width:13px;height:13px;color:var(--primary)}
.carousel-nav{display:flex;gap:10px}
.circle-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface);
  transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.circle-btn svg{width:16px;height:16px}
.circle-btn:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

/* dark cta */
.cta-dark{
  position:relative;
  background:var(--footer-deep);
  color:#fff;
  overflow:hidden;
}
.cta-dark__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  opacity:.22;
}
.cta-dark__inner{position:relative;padding:64px 0}
@media (min-width:1024px){.cta-dark__inner{padding:88px 0}}
.cta-dark h2{color:#fff}
.cta-dark .lead{color:rgba(255,255,255,.7)}

/* posts */
.post-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  height:100%;
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:rgba(15,90,75,.3)}
.post-card__media{aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft);position:relative}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.post-card:hover .post-card__media img{transform:scale(1.03)}
.post-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card__title{
  font-size:17px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover .post-card__title{color:var(--primary)}
.post-card__desc{
  font-size:14px;line-height:1.75;color:var(--ink-soft);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--ink-soft);
}
.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  min-height:200px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;text-align:center;padding:32px 20px;
}
.empty-state svg{width:28px;height:28px;color:rgba(15,90,75,.4)}

/* faq */
.faq{max-width:800px;margin:0 auto;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;line-height:1.6;
  transition:color .2s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--primary)}
.faq summary .sign{position:relative;width:18px;height:18px;flex:0 0 18px;color:var(--primary)}
.faq summary .sign::before,
.faq summary .sign::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.faq summary .sign::before{left:0;top:8px;width:18px;height:2px}
.faq summary .sign::after{top:0;left:8px;width:2px;height:18px}
.faq details[open] summary .sign::after{transform:scaleY(0);opacity:0}
.faq__answer{padding:0 0 24px;font-size:15px;line-height:1.9;color:var(--ink-soft);max-width:720px}
.faq details[open] .faq__answer{animation:fadeIn .22s var(--ease)}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* footer */
.site-footer{background:var(--footer-deep);color:#fff;border-top:1px solid rgba(255,255,255,.12)}
.footer-grid{display:grid;gap:34px;padding:56px 0 40px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding:72px 0 52px}}
.footer-title{font-size:14px;font-weight:700;letter-spacing:.06em;color:#fff;margin-bottom:16px}
.footer-link{display:block;font-size:14px;color:rgba(255,255,255,.62);padding:6px 0;transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-link:hover{color:#fff;padding-left:4px}
.footer-desc{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);margin-top:14px;max-width:300px}
.socials{display:flex;gap:10px;margin-top:20px}
.social{
  width:38px;height:38px;border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.75);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.social:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.social svg{width:17px;height:17px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:#fff}
.contact-item{font-size:13.5px;color:rgba(255,255,255,.62);line-height:1.8;margin-bottom:10px}
.contact-item strong{color:#fff;font-weight:600}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{transition-duration:.001ms !important;animation-duration:.001ms !important}
}

/* roulang page: article */
:root{
    --ink:#12141A;
    --ink-soft:#4A4F57;
    --line:#E4E6E1;
    --bg:#F6F7F4;
    --surface:#FFFFFF;
    --primary:#0F5A4B;
    --primary-deep:#0A3D33;
    --primary-soft:#E3EDE8;
    --accent:#C6F24E;
    --footer-deep:#0E1513;
    --radius-btn:10px;
    --radius-card:16px;
    --radius-img:12px;
    --radius-pill:999px;
    --shadow-card:0 8px 24px rgba(18,20,26,.08);
    --ease:cubic-bezier(.2,.7,.2,1);
    --dur:220ms;
    --container:1200px;
    --container-wide:1320px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:'PingFang SC','HarmonyOS Sans SC','Noto Sans SC','Microsoft YaHei',system-ui,sans-serif;
    font-size:16px;
    line-height:1.9;
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input{font:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding:0;list-style:none;}
  :focus-visible{outline:3px solid rgba(15,90,75,.35);outline-offset:2px;border-radius:6px;}

  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px;}
  .container-wide{width:100%;max-width:var(--container-wide);margin:0 auto;padding:0 40px;}

  /* ============ 顶栏 ============ */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(246,247,244,.92);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid transparent;
    transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
  }
  .site-header.is-scrolled{border-bottom-color:var(--line);}
  .header-inner{
    display:flex;align-items:center;gap:28px;
    height:76px;
    transition:height var(--dur) var(--ease);
  }
  .site-header.is-scrolled .header-inner{height:64px;}
  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand__mark{width:24px;height:24px;color:var(--primary);flex:0 0 auto;}
  .brand__text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
  .nav-links{display:flex;align-items:center;gap:28px;margin-left:8px;}
  .nav-link{
    position:relative;font-size:15px;font-weight:500;color:var(--ink-soft);
    padding:6px 0;transition:color var(--dur) var(--ease);
  }
  .nav-link::after{
    content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
    background:var(--primary);transition:width var(--dur) var(--ease);
  }
  .nav-link:hover{color:var(--primary);}
  .nav-link:hover::after{width:100%;}
  .nav-link.is-active{color:var(--primary);font-weight:600;}
  .nav-link.is-active::after{width:100%;}
  .header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
  .search-box{
    display:flex;align-items:center;gap:8px;
    width:230px;height:40px;padding:0 14px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill);
    transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  }
  .search-box svg{width:17px;height:17px;color:var(--ink-soft);flex:0 0 auto;}
  .search-box input{
    border:0;background:transparent;outline:none;width:100%;font-size:14px;
  }
  .search-box input::placeholder{color:#9AA09C;}
  .search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(198,242,78,.45);}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--radius-pill);
    font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
    border:1px solid transparent;transition:all var(--dur) var(--ease);
    white-space:nowrap;
  }
  .btn:active{transform:scale(.98);}
  .btn-dark{background:var(--ink);color:#fff;}
  .btn-dark:hover{background:var(--primary);box-shadow:0 8px 20px rgba(15,90,75,.22);transform:translateY(-1px);}
  .btn-outline{border-color:var(--line);color:var(--ink);background:transparent;}
  .btn-outline:hover{background:rgba(15,90,75,.06);border-color:var(--primary);color:var(--primary);}
  .btn-primary{background:var(--primary);color:#fff;}
  .btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(15,90,75,.22);}
  .btn-ghost{color:var(--primary);background:transparent;padding:0 10px;height:40px;}
  .btn-ghost:hover{background:var(--primary-soft);}
  .menu-toggle{
    display:none;width:44px;height:44px;align-items:center;justify-content:center;
    border:1px solid var(--line);background:var(--surface);border-radius:var(--radius-btn);cursor:pointer;
  }
  .menu-toggle svg{width:20px;height:20px;color:var(--ink);}
  .drawer-mask{
    position:fixed;inset:0;background:rgba(18,20,26,.45);
    opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease);z-index:60;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible;}
  .mobile-drawer{
    position:fixed;top:0;right:0;height:100%;width:280px;z-index:70;
    background:var(--surface);border-left:1px solid var(--line);
    transform:translateX(100%);transition:transform 260ms var(--ease);
    padding:24px 22px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:translateX(0);}
  .mobile-drawer .nav-link{padding:12px 0;font-size:16px;border-bottom:1px solid var(--line);}
  .mobile-drawer .drawer-bottom{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:20px;}
  .drawer-close{
    align-self:flex-end;width:40px;height:40px;display:flex;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:var(--radius-btn);background:transparent;cursor:pointer;margin-bottom:8px;
  }

  /* ============ 面包屑 ============ */
  .crumb-bar{padding:26px 0 0;}
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);}
  .crumbs a{color:var(--ink-soft);transition:color var(--dur) var(--ease);}
  .crumbs a:hover{color:var(--primary);}
  .crumbs .sep{color:#B9BEB8;}
  .crumbs .current{color:var(--ink);font-weight:600;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

  /* ============ 文章头 ============ */
  .article-head{padding:34px 0 8px;}
  .article-head__inner{max-width:820px;}
  .badge{
    display:inline-flex;align-items:center;gap:7px;
    padding:6px 14px;border-radius:var(--radius-pill);
    background:var(--primary-soft);color:var(--primary);
    font-size:13px;font-weight:600;letter-spacing:.02em;
  }
  .badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
  .article-title{
    margin-top:20px;
    font-size:clamp(30px,4.2vw,52px);
    line-height:1.14;font-weight:800;letter-spacing:-.02em;
  }
  .article-meta{
    margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
    font-size:13px;color:var(--ink-soft);
  }
  .article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
  .article-meta svg{width:15px;height:15px;color:var(--primary);}
  .rule{margin-top:30px;height:1px;background:var(--line);border:0;}

  /* ============ 正文 ============ */
  .article-layout{
    padding:44px 0 96px;
    display:grid;grid-template-columns:minmax(0,1fr) 200px;gap:56px;align-items:start;
  }
  .article-main{max-width:760px;width:100%;}
  .article-body{font-size:16.5px;line-height:1.95;color:#20242C;}
  .article-body p{margin:0 0 1.2em;}
  .article-body h2{
    margin:48px 0 16px;font-size:30px;line-height:1.25;font-weight:700;letter-spacing:-.01em;color:var(--ink);
  }
  .article-body h3{margin:32px 0 12px;font-size:22px;line-height:1.4;font-weight:600;color:var(--ink);}
  .article-body h4{margin:26px 0 10px;font-size:18px;font-weight:600;color:var(--ink);}
  .article-body a{color:var(--primary);border-bottom:1px solid rgba(15,90,75,.35);transition:border-color var(--dur) var(--ease);}
  .article-body a:hover{border-color:var(--accent);}
  .article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:4px;}
  .article-body ul li{position:relative;padding-left:20px;margin-bottom:.6em;}
  .article-body ul li::before{
    content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;background:var(--primary);border-radius:2px;
  }
  .article-body ol{counter-reset:li;}
  .article-body ol li{position:relative;padding-left:30px;margin-bottom:.6em;counter-increment:li;}
  .article-body ol li::before{
    content:counter(li,decimal-leading-zero);position:absolute;left:0;top:0;
    font-size:13px;font-weight:800;color:var(--primary);letter-spacing:.02em;
  }
  .article-body blockquote{
    margin:28px 0;padding:20px 24px;background:var(--primary-soft);
    border-left:3px solid var(--primary);border-radius:0 var(--radius-img) var(--radius-img) 0;color:#1B2A26;
  }
  .article-body blockquote p:last-child{margin-bottom:0;}
  .article-body img{border-radius:var(--radius-img);margin:24px 0;width:100%;height:auto;}
  .article-body figure{margin:24px 0;}
  .article-body figcaption{font-size:13px;color:var(--ink-soft);text-align:center;margin-top:10px;}
  .article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;border:1px solid var(--line);}
  .article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;}
  .article-body th{background:var(--primary-soft);font-weight:600;color:var(--primary-deep);}
  .article-body code{
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
    background:#F1F2EF;border-radius:6px;padding:2px 6px;font-size:14px;
  }
  .article-body pre{
    background:#F1F2EF;border-radius:var(--radius-img);padding:18px 20px;overflow-x:auto;
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;line-height:1.7;margin:24px 0;
  }
  .article-body pre code{background:transparent;padding:0;}
  .article-body hr{border:0;height:1px;background:var(--line);margin:40px 0;}

  /* ============ 目录 ============ */
  .toc-aside{position:sticky;top:96px;}
  .toc-title{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--primary);font-weight:700;margin-bottom:14px;}
  .toc-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);}
  .toc-link{
    display:block;padding:7px 0 7px 14px;margin-left:-1px;border-left:2px solid transparent;
    font-size:13.5px;line-height:1.6;color:var(--ink-soft);
    transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
  }
  .toc-link:hover{color:var(--primary);border-left-color:var(--primary);}

  /* ============ 空态 ============ */
  .empty-state{
    min-height:240px;border:1px dashed var(--line);border-radius:var(--radius-card);
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
    text-align:center;padding:36px 24px;background:var(--surface);
  }
  .empty-state svg{width:40px;height:40px;color:var(--primary);opacity:.4;}
  .empty-state p{font-size:15px;color:var(--ink);font-weight:600;}
  .empty-state span{font-size:13px;color:var(--ink-soft);}

  /* ============ 标签 ============ */
  .tag-row{margin-top:56px;padding-top:28px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
  .tag-row__label{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft);font-weight:700;margin-right:6px;}
  .tag{
    display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--radius-pill);
    border:1px solid var(--line);background:var(--surface);font-size:13.5px;color:var(--ink-soft);
    transition:all var(--dur) var(--ease);
  }
  .tag:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);}

  /* ============ 相关推荐 ============ */
  .section{padding:96px 0;}
  .section--tight{padding:72px 0;}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px;}
  .eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--primary);font-weight:700;margin-bottom:12px;}
  .h2{font-size:clamp(24px,2.4vw,38px);line-height:1.18;font-weight:700;letter-spacing:-.015em;}
  .section-desc{margin-top:12px;font-size:15px;color:var(--ink-soft);max-width:620px;}
  .link-more{
    position:relative;display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--primary);
  }
  .link-more::after{content:"";position:absolute;left:0;bottom:-4px;height:1px;width:0;background:var(--accent);transition:width var(--dur) var(--ease);}
  .link-more:hover::after{width:100%;}
  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .card{
    display:flex;flex-direction:column;background:var(--surface);
    border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
    transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:rgba(15,90,75,.3);}
  .card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EDEFEA;}
  .card__media img{width:100%;height:100%;object-fit:cover;transition:transform 260ms var(--ease);}
  .card:hover .card__media img{transform:scale(1.03);}
  .card__badge{
    position:absolute;left:14px;top:14px;
    padding:5px 12px;border-radius:var(--radius-pill);
    background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600;
  }
  .card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .card__title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .card:hover .card__title{color:var(--primary);}
  .card__text{font-size:14px;line-height:1.75;color:var(--ink-soft);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .card__foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-soft);}
  .card__foot svg{width:16px;height:16px;color:var(--primary);transition:transform var(--dur) var(--ease);}
  .card:hover .card__foot svg{transform:translateX(3px);}

  /* ============ CTA ============ */
  .cta-band{
    background:var(--footer-deep);color:#fff;border-radius:24px;
    padding:56px 56px;display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;
    border:1px solid rgba(255,255,255,.12);
  }
  .cta-band h2{font-size:clamp(24px,2.6vw,36px);line-height:1.2;font-weight:700;letter-spacing:-.015em;}
  .cta-band p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.72);max-width:560px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
  .btn-light{background:#fff;color:var(--ink);}
  .btn-light:hover{background:var(--accent);color:var(--ink);transform:translateY(-1px);}
  .btn-line{border-color:rgba(255,255,255,.32);color:#fff;}
  .btn-line:hover{background:rgba(255,255,255,.12);border-color:#fff;}

  .back-row{margin-top:44px;display:flex;flex-wrap:wrap;gap:14px;}

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--footer-deep);color:#fff;padding:76px 0 34px;margin-top:96px;
    border-top:1px solid rgba(255,255,255,.12);
  }
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:48px;}
  .footer-title{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.55);font-weight:700;margin-bottom:18px;}
  .footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px;}
  .footer-link{
    display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.78);
    transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);
  }
  .footer-link:hover{color:var(--accent);transform:translateX(3px);}
  .socials{display:flex;gap:12px;margin-top:22px;}
  .social{
    width:38px;height:38px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.8);
    transition:all var(--dur) var(--ease);
  }
  .social svg{width:17px;height:17px;}
  .social:hover{background:var(--primary);border-color:var(--primary);color:#fff;}
  .footer-contact p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68);margin-bottom:10px;}
  .footer-contact strong{color:#fff;font-weight:600;}
  .footer-bottom{
    margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
    font-size:13px;color:rgba(255,255,255,.55);
  }
  .footer-bottom a{color:rgba(255,255,255,.55);transition:color var(--dur) var(--ease);}
  .footer-bottom a:hover{color:var(--accent);}

  /* ============ 动效 ============ */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity 260ms var(--ease),transform 260ms var(--ease);}
  .reveal.is-in{opacity:1;transform:none;}
  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;}
    .reveal{opacity:1;transform:none;}
    html{scroll-behavior:auto;}
  }

  /* ============ 响应式 ============ */
  @media (max-width:1280px){
    .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
    .toc-aside{display:none;}
  }
  @media (max-width:1024px){
    .container,.container-wide{padding:0 24px;}
    .nav-links{display:none;}
    .search-box{width:190px;}
    .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
    .cta-band{grid-template-columns:1fr;padding:44px 36px;}
    .cta-actions{justify-content:flex-start;}
    .section{padding:72px 0;}
  }
  @media (max-width:768px){
    .menu-toggle{display:inline-flex;}
    .search-box,.header-actions .btn-ghost,.header-actions .btn-dark{display:none;}
    .header-inner{height:60px;gap:12px;}
    .site-header.is-scrolled .header-inner{height:60px;}
    .brand__text{font-size:16px;}
    .article-body h2{font-size:24px;margin-top:38px;}
    .article-body h3{font-size:19px;}
    .article-body{font-size:16px;line-height:1.9;}
  }
  @media (max-width:640px){
    .container,.container-wide{padding:0 16px;}
    .card-grid{grid-template-columns:minmax(0,1fr);}
    .footer-grid{grid-template-columns:1fr;}
    .section{padding:56px 0;}
    .section--tight{padding:48px 0;}
    .article-layout{padding:32px 0 64px;}
    .article-title{font-size:30px;}
    .cta-band{padding:34px 22px;border-radius:18px;}
    .site-footer{padding:56px 0 28px;margin-top:64px;}
    .crumbs .current{max-width:180px;}
  }

/* roulang page: category1 */
:root {
    --ink: #12141A;
    --ink-soft: #4A4F57;
    --line: #E4E6E1;
    --bg: #F6F7F4;
    --surface: #FFFFFF;
    --primary: #0F5A4B;
    --primary-deep: #0A3D33;
    --primary-soft: #E3EDE8;
    --accent: #C6F24E;
    --footer-deep: #0E1513;

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-pill: 999px;

    --shadow-card: 0 8px 24px rgba(18, 20, 26, .08);
    --ease: cubic-bezier(.2, .7, .2, 1);
    --dur: 220ms;

    --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    --font-num: ui-sans-serif, system-ui, "PingFang SC", "Microsoft YaHei", sans-serif;
  }

  *, *::before, *::after { box-sizing: border-box; }
  html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
  body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.9;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }
  img { display: block; max-width: 100%; height: auto; }
  a { color: inherit; text-decoration: none; }
  button, input { font: inherit; }
  button { cursor: pointer; }
  :focus-visible { outline: 3px solid rgba(15, 90, 75, .35); outline-offset: 2px; border-radius: 4px; }

  /* ---------- 容器 ---------- */
  .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 40px; }
  .container-wide { width: 100%; max-width: 1320px; margin: 0 auto; padding: 0 40px; }
  @media (max-width: 1024px) { .container, .container-wide { padding: 0 24px; } }
  @media (max-width: 520px) { .container, .container-wide { padding: 0 16px; } }

  /* ---------- 排版层级 ---------- */
  .t-display { font-size: clamp(32px, 4.5vw, 58px); line-height: 1.06; font-weight: 800; letter-spacing: -.02em; margin: 0; }
  .t-h2 { font-size: clamp(24px, 2.6vw, 38px); line-height: 1.16; font-weight: 700; letter-spacing: -.015em; margin: 0; }
  .t-h3 { font-size: clamp(18px, 1.5vw, 23px); line-height: 1.4; font-weight: 600; margin: 0; }
  .t-body { font-size: 16px; line-height: 1.9; color: var(--ink-soft); margin: 0; }
  .t-lead { font-size: clamp(16px, 1.1vw, 18px); line-height: 1.85; color: var(--ink-soft); margin: 0; }
  .t-small { font-size: 13px; line-height: 1.7; color: var(--ink-soft); margin: 0; }
  .font-num { font-family: var(--font-num); font-variant-numeric: tabular-nums; }

  .eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 12px; font-weight: 700; letter-spacing: .16em;
    color: var(--primary); margin: 0 0 18px;
  }
  .eyebrow::before {
    content: ""; width: 6px; height: 6px; border-radius: 50%;
    background: var(--accent); flex-shrink: 0;
  }

  /* ---------- 区块间距 ---------- */
  .section { padding: 96px 0; }
  @media (max-width: 1024px) { .section { padding: 72px 0; } }
  @media (max-width: 520px) { .section { padding: 56px 0; } }

  .section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 40px; }
  .section-head__text { max-width: 680px; }
  .section-head__text .t-body { margin-top: 14px; }
  @media (max-width: 768px) { .section-head { flex-direction: column; align-items: flex-start; gap: 16px; margin-bottom: 28px; } }

  .text-link {
    position: relative; display: inline-flex; align-items: center; gap: 6px;
    font-size: 15px; font-weight: 600; color: var(--primary);
  }
  .text-link::after {
    content: ""; position: absolute; left: 0; bottom: -4px; width: 0; height: 2px;
    background: var(--primary); transition: width var(--dur) var(--ease);
  }
  .text-link:hover::after { width: 100%; }
  .text-link svg { width: 16px; height: 16px; }

  /* ---------- 导航 ---------- */
  .site-header {
    position: sticky; top: 0; z-index: 60;
    background: rgba(246, 247, 244, .86);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
  }
  .site-header.is-scrolled {
    background: rgba(246, 247, 244, .92);
    border-bottom-color: var(--line);
  }
  .nav-inner {
    display: flex; align-items: center; gap: 28px;
    height: 76px;
    transition: height var(--dur) var(--ease);
  }
  .site-header.is-scrolled .nav-inner { height: 64px; }

  .brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
  .brand__mark { width: 24px; height: 24px; color: var(--primary); flex-shrink: 0; }
  .brand__text { font-size: 17px; font-weight: 800; letter-spacing: -.01em; color: var(--ink); white-space: nowrap; }

  .nav-links { display: flex; align-items: center; gap: 28px; margin-left: 8px; }
  .nav-link {
    position: relative; padding: 8px 0; font-size: 15px; font-weight: 500;
    color: var(--ink); white-space: nowrap;
    transition: color var(--dur) var(--ease);
  }
  .nav-link::after {
    content: ""; position: absolute; left: 0; bottom: 2px; width: 0; height: 2px;
    background: var(--primary); transition: width var(--dur) var(--ease);
  }
  .nav-link:hover { color: var(--primary); }
  .nav-link:hover::after { width: 100%; }
  .nav-link.is-active { color: var(--primary); font-weight: 600; }
  .nav-link.is-active::after { width: 100%; }

  .nav-actions { display: flex; align-items: center; gap: 12px; margin-left: auto; }

  .search-box {
    display: flex; align-items: center; gap: 8px;
    width: 214px; height: 40px; padding: 0 14px;
    background: var(--surface);
    border: 1px solid var(--line); border-radius: var(--radius-pill);
    transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  }
  .search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(198, 242, 78, .5); }
  .search-box svg { width: 16px; height: 16px; color: var(--ink-soft); flex-shrink: 0; }
  .search-box input {
    width: 100%; border: 0; outline: none; background: transparent;
    font-size: 14px; color: var(--ink);
  }
  .search-box input::placeholder { color: #9AA0A6; }

  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 46px; padding: 0 24px;
    border: 1px solid transparent; border-radius: var(--radius-pill);
    font-size: 15px; font-weight: 600; white-space: nowrap;
    transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease),
                border-color var(--dur) var(--ease), transform var(--dur) var(--ease),
                box-shadow var(--dur) var(--ease);
  }
  .btn:active { transform: scale(.98); }
  .btn--primary { background: var(--ink); color: #fff; }
  .btn--primary:hover { background: var(--primary); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(18, 20, 26, .16); }
  .btn--outline { background: var(--surface); border-color: var(--line); color: var(--ink); }
  .btn--outline:hover { background: rgba(15, 90, 75, .06); border-color: rgba(15, 90, 75, .35); color: var(--primary); }
  .btn--ghost { background: transparent; color: var(--primary); padding: 0 12px; }
  .btn--ghost:hover { background: rgba(15, 90, 75, .06); }
  .btn--deep { background: var(--primary); color: #fff; }
  .btn--deep:hover { background: var(--primary-deep); transform: translateY(-1px); }
  .btn--light { background: #fff; color: var(--ink); }
  .btn--light:hover { background: var(--primary-soft); color: var(--primary-deep); }
  .btn--lg { min-height: 52px; padding: 0 30px; font-size: 16px; }

  .menu-toggle {
    display: none; width: 44px; height: 44px;
    align-items: center; justify-content: center;
    background: var(--surface); border: 1px solid var(--line);
    border-radius: var(--radius-sm); color: var(--ink);
  }
  .menu-toggle svg { width: 20px; height: 20px; }

  @media (max-width: 1180px) { .search-box { width: 180px; } }
  @media (max-width: 1080px) { .search-box, .nav-actions .btn--ghost { display: none; } }
  @media (max-width: 1024px) {
    .nav-links { display: none; }
    .menu-toggle { display: inline-flex; }
  }
  @media (max-width: 520px) {
    .nav-inner { height: 60px; gap: 12px; }
    .site-header.is-scrolled .nav-inner { height: 60px; }
    .brand__text { font-size: 15px; }
    .nav-actions .btn--primary { min-height: 40px; padding: 0 16px; font-size: 14px; }
  }

  /* ---------- 移动抽屉 ---------- */
  .drawer-mask {
    position: fixed; inset: 0; z-index: 80;
    background: rgba(18, 20, 26, .45);
    opacity: 0; visibility: hidden;
    transition: opacity var(--dur) var(--ease), visibility var(--dur) var(--ease);
  }
  .drawer-mask.is-open { opacity: 1; visibility: visible; }
  .mobile-drawer {
    position: fixed; top: 0; right: 0; z-index: 90;
    width: 280px; max-width: 86vw; height: 100%;
    display: flex; flex-direction: column; gap: 22px;
    padding: 20px; overflow-y: auto;
    background: var(--surface); border-left: 1px solid var(--line);
    transform: translateX(100%);
    transition: transform 260ms var(--ease);
  }
  .mobile-drawer.is-open { transform: translateX(0); }
  .drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
  .drawer-close {
    width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
    background: transparent; border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--ink);
  }
  .drawer-close svg { width: 18px; height: 18px; }
  .drawer-nav { display: flex; flex-direction: column; }
  .drawer-nav a {
    padding: 14px 0; font-size: 16px; font-weight: 500;
    border-bottom: 1px solid var(--line); color: var(--ink);
    transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
  }
  .drawer-nav a:hover { color: var(--primary); padding-left: 6px; }
  .drawer-nav a.is-active { color: var(--primary); font-weight: 700; }
  .drawer-foot { margin-top: auto; display: flex; flex-direction: column; gap: 12px; }
  .drawer-foot .search-box { width: 100%; }
  @media (min-width: 1025px) { .mobile-drawer, .drawer-mask { display: none; } }

  /* ---------- 分类 Hero ---------- */
  .cat-hero {
    position: relative; overflow: hidden;
    border-bottom: 1px solid var(--line);
    background: linear-gradient(180deg, #E9F1EC 0%, rgba(233, 241, 236, .4) 58%, var(--bg) 100%);
  }
  .cat-hero__inner {
    display: grid; grid-template-columns: 1.12fr .88fr;
    gap: 56px; align-items: center;
    padding: 64px 0 60px; min-height: 320px;
  }
  .cat-hero__title { margin: 0 0 18px; }
  .cat-hero__desc { max-width: 560px; }
  .cat-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
  .cat-hero__media {
    border-radius: var(--radius-md); overflow: hidden;
    border: 1px solid var(--line); box-shadow: var(--shadow-card);
    position: relative;
  }
  .cat-hero__media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
  .cat-hero__media::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(90deg, rgba(233, 241, 236, .55) 0%, rgba(233, 241, 236, 0) 55%);
    pointer-events: none;
  }
  @media (max-width: 1024px) {
    .cat-hero__inner { grid-template-columns: 1fr; gap: 30px; padding: 44px 0 40px; }
    .cat-hero__media img { aspect-ratio: 16 / 9; }
  }

  .breadcrumb {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; color: var(--ink-soft); margin-bottom: 22px; flex-wrap: wrap;
  }
  .breadcrumb a { color: var(--ink-soft); transition: color var(--dur) var(--ease); }
  .breadcrumb a:hover { color: var(--primary); text-decoration: underline; }
  .breadcrumb .sep { color: #B9BDB6; }
  .breadcrumb .current { color: var(--ink); font-weight: 600; }

  /* ---------- 指标卡 ---------- */
  .stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
  .stat-card {
    background: var(--surface); border: 1px solid var(--line);
    border-radius: var(--radius-md); padding: 26px 24px;
    transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  }
  .stat-card:hover { transform: translateY(-2px); border-color: rgba(15, 90, 75, .3); box-shadow: var(--shadow-card); }
  .stat-card__num { font-size: 30px; font-weight: 800; line-height: 1.2; color: var(--primary); }
  .stat-card__label { margin-top: 8px; font-size: 15px; font-weight: 600; color: var(--ink); }
  .stat-card__note { margin-top: 6px; font-size: 13px; line-height: 1.7; color: var(--ink-soft); }
  @media (max-width: 1024px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 520px) { .stat-grid { grid-template-columns: 1fr; } }

  /* ---------- 横向条目列表 ---------- */
  .entry-list { display: flex; flex-direction: column; }
  .entry-item {
    display: grid; grid-template-columns: 360px 1fr; gap: 40px;
    align-items: center; padding: 40px 0;
    border-top: 1px solid var(--line);
  }
  .entry-item:last-child { border-bottom: 1px solid var(--line); }
  .entry-item__media {
    border-radius: var(--radius-md); overflow: hidden;
    border: 1px solid var(--line); background: var(--surface);
  }
  .entry-item__media img {
    width: 100%; aspect-ratio: 16 / 10; object-fit: cover;
    transition: transform 260ms var(--ease);
  }
  .entry-item:hover .entry-item__media img { transform: scale(1.03); }
  .entry-item__body { display: flex; flex-direction: column; gap: 14px; }
  .entry-item__title { transition: color var(--dur) var(--ease); }
  .entry-item:hover .entry-item__title { color: var(--primary); }
  .entry-item__tags { display: flex; flex-wrap: wrap; gap: 8px; }
  .entry-item__meta { display: flex; flex-wrap: wrap; gap: 8px 20px; }
  @media (max-width: 1024px) {
    .entry-item { grid-template-columns: 1fr; gap: 20px; padding: 32px 0; }
  }

  .badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 5px 12px; border-radius: var(--radius-pill);
    background: var(--primary-soft); color: var(--primary);
    font-size: 12px; font-weight: 600; line-height: 1.6;
  }
  .badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
  .badge--line { background: transparent; border: 1px solid var(--line); color: var(--ink-soft); }
  .badge--line::before { background: var(--primary); }

  /* ---------- 核对清单 ---------- */
  .check-band {
    background: var(--surface); border: 1px solid var(--line);
    border-radius: var(--radius-md); padding: 44px 48px;
  }
  .check-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 0 56px; margin-top: 28px; }
  .check-col__head {
    font-size: 13px; font-weight: 700; letter-spacing: .1em; color: var(--primary);
    padding-bottom: 12px; border-bottom: 1px solid var(--line);
  }
  .check-item {
    display: flex; align-items: flex-start; gap: 12px;
    padding: 16px 0; border-bottom: 1px solid var(--line);
  }
  .check-item svg { width: 18px; height: 18px; color: var(--primary); flex-shrink: 0; margin-top: 5px; }
  .check-item span { font-size: 15px; line-height: 1.8; color: var(--ink-soft); }
  @media (max-width: 768px) {
    .check-band { padding: 28px 22px; }
    .check-cols { grid-template-columns: 1fr; gap: 0; }
    .check-col + .check-col { margin-top: 28px; }
  }

  /* ---------- FAQ ---------- */
  .faq-wrap { max-width: 800px; margin: 0 auto; }
  .faq-item { border-bottom: 1px solid var(--line); }
  .faq-item:first-of-type { border-top: 1px solid var(--line); }
  .faq-item summary {
    list-style: none; cursor: pointer;
    display: flex; align-items: center; justify-content: space-between; gap: 20px;
    padding: 24px 0; font-size: 17px; font-weight: 600; color: var(--ink);
    transition: color var(--dur) var(--ease);
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary:hover { color: var(--primary); }
  .faq-item summary .mark { position: relative; width: 16px; height: 16px; flex-shrink: 0; }
  .faq-item summary .mark::before,
  .faq-item summary .mark::after {
    content: ""; position: absolute; left: 0; top: 50%;
    width: 16px; height: 1.5px; background: currentColor;
    transform: translateY(-50%);
    transition: transform var(--dur) var(--ease);
  }
  .faq-item summary .mark::after { transform: translateY(-50%) rotate(90deg); }
  .faq-item[open] summary .mark::after { transform: translateY(-50%) rotate(0deg); }
  .faq-item .answer {
    padding: 0 0 24px; max-width: 680px;
    font-size: 15px; line-height: 1.9; color: var(--ink-soft);
  }
  @media (max-width: 520px) {
    .faq-item summary { font-size: 16px; padding: 20px 0; }
  }

  /* ---------- CTA ---------- */
  .cta-band {
    position: relative; overflow: hidden;
    background: var(--footer-deep); color: #fff;
    border-radius: var(--radius-md); padding: 56px;
    display: grid; grid-template-columns: 1.4fr .9fr; gap: 40px; align-items: center;
  }
  .cta-band::before {
    content: ""; position: absolute; top: -80px; right: -60px;
    width: 320px; height: 320px; border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, .08);
  }
  .cta-band__title { color: #fff; margin: 0 0 14px; }
  .cta-band__desc { color: rgba(255, 255, 255, .7); margin: 0; font-size: 15px; line-height: 1.9; max-width: 520px; }
  .cta-band__actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: flex-end; position: relative; }
  @media (max-width: 1024px) {
    .cta-band { grid-template-columns: 1fr; padding: 36px 28px; gap: 26px; }
    .cta-band__actions { justify-content: flex-start; }
  }

  /* ---------- 页脚 ---------- */
  .site-footer {
    background: var(--footer-deep); color: rgba(255, 255, 255, .72);
    padding: 72px 0 0; border-top: 1px solid rgba(255, 255, 255, .12);
  }
  .footer-grid {
    display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 40px; padding-bottom: 56px;
  }
  .footer-title { font-size: 14px; font-weight: 700; color: #fff; margin: 0 0 18px; }
  .footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .62); margin: 16px 0 20px; max-width: 320px; }
  .footer-link {
    display: block; padding: 6px 0; font-size: 14px;
    color: rgba(255, 255, 255, .72);
    transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
  }
  .footer-link:hover { color: #fff; padding-left: 6px; }
  .footer-note { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .62); margin: 0 0 12px; }
  .socials { display: flex; gap: 10px; }
  .social {
    width: 38px; height: 38px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid rgba(255, 255, 255, .16); color: rgba(255, 255, 255, .7);
    transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
  }
  .social:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
  .social svg { width: 18px; height: 18px; }
  .footer-bottom {
    display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
    padding: 24px 0; border-top: 1px solid rgba(255, 255, 255, .12);
    font-size: 13px; color: rgba(255, 255, 255, .55);
  }
  @media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
  @media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } .site-footer { padding-top: 52px; } }

  /* ---------- 入场动效 ---------- */
  .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s var(--ease), transform .55s var(--ease); }
  .reveal.is-visible { opacity: 1; transform: none; }

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

.reveal{opacity:1;transform:none}

/* roulang page: category2 */
:root{
  --ink:#12141A;
  --ink-soft:#4A4F57;
  --line:#E4E6E1;
  --bg:#F6F7F4;
  --surface:#FFFFFF;
  --primary:#0F5A4B;
  --primary-deep:#0A3D33;
  --primary-soft:#E3EDE8;
  --accent:#C6F24E;
  --footer-deep:#0E1513;
  --radius-ctl:10px;
  --radius-card:16px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-card:0 8px 24px rgba(18,20,26,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:220ms;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}

h1,h2,h3{letter-spacing:-.01em}
h2{font-size:clamp(24px,3vw,38px);line-height:1.18;font-weight:700}
h3{font-size:clamp(18px,2vw,22px);line-height:1.4;font-weight:600}
p{line-height:1.9}

a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:3px solid rgba(15,90,75,.35);
  outline-offset:2px;
  border-radius:8px;
}

.container{max-width:1200px;margin:0 auto;padding:0 40px}
.container-wide{max-width:1320px;margin:0 auto;padding:0 40px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,247,244,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:76px;
  transition:height var(--dur) var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px}

.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.brand__mark{width:24px;height:24px;color:var(--primary);flex-shrink:0}
.brand__text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}

.nav-links{display:flex;align-items:center;gap:28px;margin-left:12px}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink-soft);
  text-decoration:none;padding:6px 0;white-space:nowrap;
  transition:color var(--dur) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left center;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{transform:scaleX(1)}

.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}

.search{position:relative;width:232px;flex-shrink:0}
.search svg{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:var(--primary);pointer-events:none;
}
.search input{
  width:100%;height:42px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:#fff;
  padding:0 16px 0 40px;font-size:14px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.search input::placeholder{color:#9BA1A6}
.search input:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(198,242,78,.55);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;text-decoration:none;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}
.btn:active{transform:scale(.98)}
.btn-solid{background:var(--ink);color:#fff}
.btn-solid:hover{background:var(--primary);transform:translateY(-1px);box-shadow:0 8px 20px rgba(18,20,26,.18)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--primary)}
.btn-ghost:hover{background:rgba(15,90,75,.06);border-color:var(--primary)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--accent);color:var(--ink)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.3);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:#fff}

.menu-btn{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-ctl);
  background:#fff;cursor:pointer;color:var(--ink);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.menu-btn:hover{border-color:var(--primary);color:var(--primary)}

.drawer-mask{
  position:fixed;inset:0;background:rgba(18,20,26,.45);
  opacity:0;pointer-events:none;z-index:55;
  transition:opacity var(--dur) var(--ease);
}
body.drawer-open .drawer-mask{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;right:0;z-index:60;
  width:280px;height:100%;background:#fff;
  padding:22px;display:flex;flex-direction:column;gap:6px;
  overflow-y:auto;transform:translateX(101%);
  transition:transform var(--dur) var(--ease);
  box-shadow:-12px 0 32px rgba(18,20,26,.12);
}
body.drawer-open .mobile-drawer{transform:none}
.mobile-drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line)}
.mobile-drawer__close{
  width:40px;height:40px;border-radius:var(--radius-ctl);
  border:1px solid var(--line);background:#fff;cursor:pointer;
  display:flex;align-items:center;justify-content:center;color:var(--ink-soft);
}
.mobile-drawer .nav-link{padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px}
.mobile-drawer .nav-link::after{display:none}
.mobile-drawer .drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:20px}
.mobile-drawer .search{width:100%}
.mobile-drawer .btn{width:100%}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#FFFFFF 0%,var(--primary-soft) 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center right;
  opacity:.22;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.82) 46%,rgba(255,255,255,.42) 100%);
}
.page-hero__inner{position:relative;z-index:1;padding:44px 0 56px}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-soft)}
.breadcrumb a{text-decoration:none;transition:color var(--dur) var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#B4B9BC}
.breadcrumb .current{color:var(--ink);max-width:20ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);margin-top:22px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.page-hero h1{
  font-size:clamp(32px,4.4vw,58px);line-height:1.08;font-weight:800;
  letter-spacing:-.02em;margin-top:16px;max-width:880px;
}
.page-hero__sub{margin-top:18px;font-size:17px;color:var(--ink-soft);max-width:620px;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(15,90,75,.08);color:var(--primary-deep);
  font-size:13px;font-weight:600;border:1px solid rgba(15,90,75,.14);
}

/* ---------- 指标条 ---------- */
.metric-band{background:#fff;border-bottom:1px solid var(--line)}
.metric-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  padding:34px 0;
}
.metric{padding:0 26px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric__num{
  font-size:30px;font-weight:800;color:var(--primary);line-height:1.2;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.metric__label{font-size:14px;font-weight:600;margin-top:6px}
.metric__desc{font-size:13px;color:var(--ink-soft);line-height:1.7;margin-top:2px}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{margin-top:14px}
.section-head p{margin-top:14px;color:var(--ink-soft);font-size:16px}

/* ---------- 左右分栏 + 时间线 ---------- */
.split{
  display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:64px;align-items:start;
}
.sticky-panel{position:sticky;top:96px}
.panel-figure{
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:#fff;
}
.panel-figure img{aspect-ratio:16/10;object-fit:cover;width:100%}
.panel-body{padding:22px 24px}
.panel-body h3{font-size:19px}
.panel-body p{margin-top:10px;color:var(--ink-soft);font-size:15px}
.panel-note{
  margin-top:20px;padding:18px 20px;border-radius:var(--radius-card);
  background:var(--primary-soft);border-left:3px solid var(--primary);
  font-size:14px;color:var(--primary-deep);line-height:1.85;
}

.timeline{position:relative}
.timeline__item{position:relative;display:flex;gap:26px;padding-bottom:38px}
.timeline__item:last-child{padding-bottom:0}
.timeline__item:not(:last-child)::after{
  content:"";position:absolute;left:31px;top:64px;bottom:10px;width:1px;background:var(--line);
}
.timeline__num{
  flex:0 0 64px;width:64px;
  font-size:34px;font-weight:800;line-height:.9;
  color:var(--primary);letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
}
.timeline__body{padding-top:2px}
.timeline__body h3{font-size:19px}
.timeline__body p{margin-top:10px;font-size:15px;color:var(--ink-soft);max-width:600px}
.timeline__meta{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;
}
.chip{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:#fff;
  font-size:12.5px;color:var(--ink-soft);
}

/* ---------- 参数表 ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;background:#fff;overflow-x:auto;
}
.spec-table{width:100%;border-collapse:collapse;min-width:640px;font-size:15px}
.spec-table th{
  background:var(--primary-soft);color:var(--primary-deep);
  font-size:13.5px;font-weight:600;text-align:left;
  padding:15px 20px;border-bottom:1px solid var(--line);
  letter-spacing:.02em;
}
.spec-table td{
  padding:15px 20px;border-bottom:1px solid var(--line);
  color:var(--ink-soft);vertical-align:top;
}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table td:first-child{color:var(--ink);font-weight:600}
.spec-table tbody tr{transition:background var(--dur) var(--ease)}
.spec-table tbody tr:hover{background:#FAFBF8}

/* ---------- 习惯清单 ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px}
.check-item{display:flex;gap:14px;padding:24px 0;border-bottom:1px solid var(--line)}
.check-item strong{font-size:16px;font-weight:600;display:block}
.check-item span.desc{font-size:14px;color:var(--ink-soft);display:block;margin-top:6px;line-height:1.8}
.check-item .ico{
  flex:0 0 24px;width:24px;height:24px;color:var(--primary);margin-top:4px;
}

/* ---------- FAQ ---------- */
.faq{max-width:800px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  display:flex;align-items:flex-start;justify-content:space-between;gap:24px;
  padding:22px 0;cursor:pointer;font-size:17px;font-weight:600;
  list-style:none;transition:color var(--dur) var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--primary)}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;color:var(--ink-soft);
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq details[open] .faq-icon{transform:rotate(45deg);color:var(--primary)}
.faq .faq-body{
  padding:0 0 24px;font-size:15px;color:var(--ink-soft);
  max-width:680px;line-height:1.9;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--footer-deep);color:#fff;
  border-radius:var(--radius-card);
  padding:56px;display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,34px);max-width:560px}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.72);font-size:15px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

.back-home{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--primary);text-decoration:none;
  transition:color var(--dur) var(--ease);
}
.back-home:hover{color:var(--primary-deep)}
.back-home svg{width:18px;height:18px}

/* ---------- footer ---------- */
.site-footer{
  background:var(--footer-deep);color:#fff;
  border-top:1px solid rgba(255,255,255,.12);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;
  gap:44px;padding:72px 0 48px;
}
.footer-title{
  font-size:13px;font-weight:600;letter-spacing:.14em;
  color:rgba(255,255,255,.55);margin:0 0 16px;
}
.footer-desc{
  color:rgba(255,255,255,.68);font-size:14px;line-height:1.85;
  margin:16px 0 20px;max-width:320px;
}
.footer-link{
  display:block;color:rgba(255,255,255,.78);text-decoration:none;
  font-size:14px;padding:6px 0;
  transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer-link:hover{color:#fff;transform:translateX(2px)}
.footer-note{font-size:13.5px;color:rgba(255,255,255,.62);line-height:1.8;margin-bottom:10px}
.socials{display:flex;gap:10px}
.social{
  width:38px;height:38px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.75);
  display:flex;align-items:center;justify-content:center;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.social svg{width:18px;height:18px}
.social:hover{background:var(--primary);border-color:var(--primary);color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container,.container-wide{padding:0 24px}
  .nav-links,.search{display:none}
  .menu-btn{display:flex}
  .header-inner{gap:16px}
  .split{grid-template-columns:1fr;gap:40px}
  .sticky-panel{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding:56px 0 36px}
  .cta-band{padding:44px}
  .section{padding:72px 0}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 0}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){padding-bottom:22px;border-bottom:1px solid var(--line)}
  .metric:nth-child(3),.metric:nth-child(4){padding-top:22px}
}

@media (max-width:768px){
  .container,.container-wide{padding:0 20px}
  .header-inner{height:64px}
  .brand__text{font-size:16px}
  .btn{padding:0 16px;font-size:14px}
  .header-actions .btn-ghost{display:none}
  .page-hero__inner{padding:32px 0 44px}
  .page-hero__sub{font-size:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .check-list{grid-template-columns:1fr;gap:0}
  .timeline__item{gap:18px}
  .timeline__num{flex:0 0 48px;width:48px;font-size:26px}
  .timeline__item:not(:last-child)::after{left:23px;top:50px}
  .cta-band{padding:32px;flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:32px}
}

@media (max-width:520px){
  .page-hero h1{font-size:30px}
  .metric-grid{grid-template-columns:1fr}
  .metric{border-right:0;padding:16px 0;border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:0}
  .metric:nth-child(2){border-bottom:1px solid var(--line)}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
    --ink:#12141A;
    --ink-soft:#4A4F57;
    --line:#E4E6E1;
    --bg:#F6F7F4;
    --surface:#FFFFFF;
    --primary:#0F5A4B;
    --primary-deep:#0A3D33;
    --primary-soft:#E3EDE8;
    --accent:#C6F24E;
    --footer-deep:#0E1513;
    --radius-ctl:10px;
    --radius-card:16px;
    --radius-img:12px;
    --radius-pill:999px;
    --shadow-card:0 8px 24px rgba(18,20,26,.08);
    --ease:cubic-bezier(.2,.7,.2,1);
    --dur:220ms;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease);}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  input{font:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  table{border-collapse:collapse;width:100%;}
  .num{font-variant-numeric:tabular-nums;font-family:ui-sans-serif,system-ui,sans-serif;}

  :focus-visible{
    outline:3px solid rgba(198,242,78,.75);
    outline-offset:2px;
    border-radius:6px;
  }

  .container{max-width:1200px;margin:0 auto;padding:0 40px;}
  .container-wide{max-width:1320px;margin:0 auto;padding:0 40px;}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(246,247,244,.86);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid transparent;
    transition:height var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease);
  }
  .site-header.is-shrink{
    background:rgba(246,247,244,.94);
    border-bottom-color:var(--line);
  }
  .header-inner{
    height:76px;
    display:flex;
    align-items:center;
    gap:24px;
    transition:height var(--dur) var(--ease);
  }
  .site-header.is-shrink .header-inner{height:64px;}

  .brand{display:flex;align-items:center;gap:10px;flex:none;}
  .brand__mark{width:24px;height:24px;color:var(--primary);flex:none;}
  .brand__text{
    font-size:18px;
    font-weight:800;
    letter-spacing:-.01em;
    color:var(--ink);
    white-space:nowrap;
  }

  .nav-links{display:flex;align-items:center;gap:28px;margin-left:12px;}
  .nav-link{
    position:relative;
    font-size:15px;
    font-weight:500;
    color:var(--ink-soft);
    padding:6px 0;
    white-space:nowrap;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:0;
    bottom:0;
    width:0;
    height:2px;
    background:var(--primary);
    transition:width var(--dur) var(--ease);
  }
  .nav-link:hover{color:var(--primary);}
  .nav-link:hover::after{width:100%;}
  .nav-link.is-active{color:var(--primary);font-weight:600;}
  .nav-link.is-active::after{width:100%;}

  .header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
  .search{
    position:relative;
    display:flex;
    align-items:center;
    width:228px;
    height:40px;
    border:1px solid var(--line);
    border-radius:var(--radius-pill);
    background:var(--surface);
    padding:0 14px;
    transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  }
  .search svg{width:16px;height:16px;color:var(--ink-soft);flex:none;margin-right:8px;}
  .search input{
    width:100%;
    border:0;
    background:transparent;
    outline:none;
    font-size:13px;
    color:var(--ink);
  }
  .search input::placeholder{color:#9AA09A;}
  .search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(198,242,78,.45);}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:44px;
    padding:0 22px;
    border-radius:var(--radius-pill);
    font-size:15px;
    font-weight:600;
    line-height:1;
    border:1px solid transparent;
    transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform 160ms var(--ease),box-shadow var(--dur) var(--ease);
  }
  .btn:active{transform:scale(.98);}
  .btn-solid{background:var(--ink);color:#fff;}
  .btn-solid:hover{background:var(--primary);box-shadow:0 8px 20px rgba(15,90,75,.22);}
  .btn-outline{border-color:var(--line);background:transparent;color:var(--ink);}
  .btn-outline:hover{background:rgba(15,90,75,.06);border-color:rgba(15,90,75,.3);color:var(--primary-deep);}
  .btn-primary{background:var(--primary);color:#fff;}
  .btn-primary:hover{background:var(--primary-deep);box-shadow:0 8px 20px rgba(15,90,75,.24);}
  .btn-sm{height:40px;padding:0 18px;font-size:14px;}

  .menu-btn{
    display:none;
    width:44px;
    height:44px;
    align-items:center;
    justify-content:center;
    border:1px solid var(--line);
    border-radius:var(--radius-ctl);
    color:var(--ink);
  }
  .menu-btn svg{width:20px;height:20px;}

  /* 移动抽屉 */
  .drawer-mask{
    position:fixed;
    inset:0;
    background:rgba(18,20,26,.45);
    opacity:0;
    visibility:hidden;
    transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
    z-index:70;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;
    top:0;
    right:0;
    width:280px;
    max-width:86vw;
    height:100%;
    background:var(--surface);
    z-index:80;
    transform:translateX(100%);
    transition:transform 260ms var(--ease);
    display:flex;
    flex-direction:column;
    padding:20px;
    border-left:1px solid var(--line);
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
  .drawer__title{font-size:15px;font-weight:700;}
  .drawer__close{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--radius-ctl);}
  .drawer__nav{display:flex;flex-direction:column;gap:4px;}
  .drawer__nav a{
    padding:13px 12px;
    border-radius:var(--radius-ctl);
    font-size:16px;
    font-weight:500;
    color:var(--ink-soft);
  }
  .drawer__nav a:hover{background:var(--primary-soft);color:var(--primary-deep);}
  .drawer__nav a.is-active{background:var(--primary-soft);color:var(--primary-deep);font-weight:600;}
  .drawer__foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:20px;border-top:1px solid var(--line);}
  .drawer__foot .search{width:100%;}

  /* ---------- 分类 Hero ---------- */
  .hero-cat{
    position:relative;
    padding:52px 0 64px;
    border-bottom:1px solid var(--line);
    background:
      linear-gradient(90deg,rgba(246,247,244,.97) 0%,rgba(246,247,244,.9) 48%,rgba(246,247,244,.6) 100%),
      url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  }
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);margin-bottom:26px;flex-wrap:wrap;}
  .crumb a{color:var(--ink-soft);}
  .crumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
  .crumb span{color:#B4B8B2;}
  .crumb__cur{color:var(--ink);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

  .eyebrow{
    font-size:12px;
    font-weight:700;
    letter-spacing:.16em;
    color:var(--primary);
    text-transform:uppercase;
    margin-bottom:16px;
  }
  .hero-title{
    font-size:clamp(32px,4.4vw,58px);
    line-height:1.08;
    font-weight:800;
    letter-spacing:-.02em;
    max-width:20em;
  }
  .hero-sub{
    margin-top:22px;
    font-size:17px;
    line-height:1.9;
    color:var(--ink-soft);
    max-width:660px;
  }
  .hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
  .hero-meta li{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--ink-soft);
    padding:8px 16px;
    border:1px solid var(--line);
    border-radius:var(--radius-pill);
    background:rgba(255,255,255,.75);
  }
  .hero-meta li::before{
    content:"";
    width:6px;
    height:6px;
    border-radius:50%;
    background:var(--accent);
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:88px 0;}
  .section--tight{padding:64px 0;}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:32px;
    margin-bottom:44px;
    flex-wrap:wrap;
  }
  .section-head__left{max-width:720px;}
  .h2{
    font-size:clamp(25px,2.8vw,38px);
    line-height:1.18;
    font-weight:700;
    letter-spacing:-.015em;
  }
  .section-sub{margin-top:14px;font-size:15px;color:var(--ink-soft);line-height:1.9;}
  .text-link{
    position:relative;
    font-size:14px;
    font-weight:600;
    color:var(--primary);
    padding-bottom:2px;
  }
  .text-link::after{
    content:"";
    position:absolute;
    left:0;
    bottom:0;
    width:0;
    height:1px;
    background:var(--accent);
    transition:width var(--dur) var(--ease);
  }
  .text-link:hover::after{width:100%;}

  /* ---------- 图文卡片 7:5 ---------- */
  .split-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
  .card{
    position:relative;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
    display:flex;
    flex-direction:column;
  }
  .card:hover{
    transform:translateY(-2px);
    border-color:rgba(15,90,75,.3);
    box-shadow:var(--shadow-card);
  }
  .card__media{position:relative;overflow:hidden;background:var(--primary-soft);}
  .card__media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
  .card:hover .card__media img{transform:scale(1.03);}
  .card__badge{
    position:absolute;
    top:14px;
    left:14px;
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:28px;
    padding:0 14px;
    border-radius:var(--radius-pill);
    background:var(--primary-soft);
    color:var(--primary-deep);
    font-size:12px;
    font-weight:600;
    letter-spacing:.02em;
  }
  .card__body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .card__title{font-size:20px;font-weight:700;line-height:1.4;}
  .card__text{font-size:14px;color:var(--ink-soft);line-height:1.9;}
  .card__foot{
    margin-top:auto;
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--ink-soft);
    padding-top:8px;
  }
  .card__foot svg{width:16px;height:16px;color:var(--primary);}

  .span-7{grid-column:span 7;}
  .span-5{grid-column:span 5;display:flex;flex-direction:column;gap:24px;}
  .card--main .card__media{aspect-ratio:16/9;}
  .card--mini{flex-direction:row;align-items:stretch;}
  .card--mini .card__media{width:38%;flex:none;}
  .card--mini .card__body{padding:20px 22px;}

  /* ---------- 参数表 ---------- */
  .table-wrap{
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:var(--surface);
    overflow-x:auto;
  }
  .spec-table{min-width:760px;font-size:14px;}
  .spec-table thead th{
    background:var(--primary-soft);
    color:var(--primary-deep);
    font-size:13px;
    font-weight:700;
    letter-spacing:.06em;
    text-align:left;
    padding:16px 22px;
    white-space:nowrap;
    border-bottom:1px solid var(--line);
  }
  .spec-table tbody td{
    padding:18px 22px;
    border-bottom:1px solid var(--line);
    color:var(--ink-soft);
    line-height:1.8;
    vertical-align:top;
  }
  .spec-table tbody tr:last-child td{border-bottom:0;}
  .spec-table tbody tr:hover td{background:#FAFBF8;}
  .spec-table td:first-child{color:var(--ink);font-weight:600;white-space:nowrap;}
  .spec-table .tag-time{
    display:inline-block;
    padding:3px 10px;
    border-radius:var(--radius-pill);
    background:var(--primary-soft);
    color:var(--primary-deep);
    font-size:12px;
    font-weight:600;
    white-space:nowrap;
  }

  /* ---------- 深色面板 ---------- */
  .deep-panel{
    background:var(--footer-deep);
    color:#fff;
    border-radius:20px;
    padding:56px;
    display:grid;
    grid-template-columns:1.15fr .85fr;
    gap:56px;
    align-items:center;
  }
  .deep-panel .eyebrow{color:var(--accent);}
  .deep-panel .h2{color:#fff;}
  .deep-panel p{color:rgba(255,255,255,.72);font-size:15px;line-height:1.95;}
  .deep-list{display:flex;flex-direction:column;gap:0;border-top:1px solid rgba(255,255,255,.12);}
  .deep-list li{
    display:grid;
    grid-template-columns:auto 1fr;
    gap:18px;
    padding:20px 0;
    border-bottom:1px solid rgba(255,255,255,.12);
    align-items:start;
  }
  .deep-list .idx{
    font-size:13px;
    font-weight:800;
    letter-spacing:.1em;
    color:var(--accent);
    padding-top:3px;
  }
  .deep-list h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:6px;}
  .deep-list p{font-size:13.5px;color:rgba(255,255,255,.66);line-height:1.85;}

  /* ---------- 指标卡 ---------- */
  .stat-row{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:0;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:var(--surface);
    overflow:hidden;
    margin-bottom:44px;
  }
  .stat{padding:28px 26px;border-right:1px solid var(--line);}
  .stat:last-child{border-right:0;}
  .stat__num{
    font-size:30px;
    font-weight:800;
    letter-spacing:-.02em;
    color:var(--primary);
    line-height:1.2;
  }
  .stat__label{font-size:13px;color:var(--ink-soft);margin-top:8px;line-height:1.7;}

  /* ---------- FAQ ---------- */
  .faq{max-width:800px;border-top:1px solid var(--line);}
  .faq details{border-bottom:1px solid var(--line);}
  .faq summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:24px;
    padding:24px 0;
    font-size:17px;
    font-weight:600;
    line-height:1.6;
    color:var(--ink);
    transition:color var(--dur) var(--ease);
  }
  .faq summary::-webkit-details-marker{display:none;}
  .faq summary:hover{color:var(--primary);}
  .faq .icon{
    flex:none;
    width:22px;
    height:22px;
    margin-top:4px;
    position:relative;
  }
  .faq .icon::before,
  .faq .icon::after{
    content:"";
    position:absolute;
    background:var(--primary);
    border-radius:2px;
    transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
  }
  .faq .icon::before{left:0;top:10px;width:22px;height:1.6px;}
  .faq .icon::after{top:0;left:10px;width:1.6px;height:22px;}
  .faq details[open] .icon::after{transform:scaleY(0);opacity:0;}
  .faq .answer{
    padding:0 46px 26px 0;
    font-size:15px;
    line-height:1.9;
    color:var(--ink-soft);
  }

  /* ---------- 分类导航卡 ---------- */
  .cat-strip{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
    margin-top:48px;
  }
  .cat-strip a{
    display:flex;
    flex-direction:column;
    gap:10px;
    padding:24px;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:var(--surface);
    transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  }
  .cat-strip a:hover{
    transform:translateY(-2px);
    border-color:rgba(15,90,75,.3);
    box-shadow:var(--shadow-card);
  }
  .cat-strip strong{font-size:17px;font-weight:700;}
  .cat-strip span{font-size:13.5px;color:var(--ink-soft);line-height:1.8;}

  /* ---------- CTA ---------- */
  .cta-band{
    background:var(--primary-soft);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:72px 0;
  }
  .cta-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:48px;
    flex-wrap:wrap;
  }
  .cta-inner .h2{max-width:620px;}
  .cta-inner p{margin-top:14px;font-size:15px;color:var(--ink-soft);max-width:560px;}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--footer-deep);
    color:#fff;
    padding:76px 0 0;
    border-top:1px solid rgba(255,255,255,.12);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.2fr;
    gap:48px;
    padding-bottom:56px;
  }
  .site-footer .brand__text{font-size:17px;}
  .footer-desc{
    margin-top:16px;
    font-size:13.5px;
    line-height:1.9;
    color:rgba(255,255,255,.6);
    max-width:320px;
  }
  .socials{display:flex;gap:10px;margin-top:22px;}
  .social{
    width:38px;
    height:38px;
    display:flex;
    align-items:center;
    justify-content:center;
    border:1px solid rgba(255,255,255,.16);
    border-radius:50%;
    color:rgba(255,255,255,.75);
    transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
  }
  .social svg{width:18px;height:18px;}
  .social:hover{background:var(--primary);color:#fff;border-color:var(--primary);}
  .footer-title{
    font-size:13px;
    font-weight:700;
    letter-spacing:.14em;
    color:rgba(255,255,255,.5);
    text-transform:uppercase;
    margin-bottom:20px;
  }
  .footer-link{
    display:block;
    font-size:14px;
    color:rgba(255,255,255,.75);
    padding:8px 0;
  }
  .footer-link:hover{color:var(--accent);}
  .footer-contact{font-size:14px;color:rgba(255,255,255,.75);line-height:1.9;}
  .footer-contact strong{display:block;color:#fff;font-size:15px;margin-bottom:6px;}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);
    padding:24px 0 28px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    flex-wrap:wrap;
    font-size:13px;
    color:rgba(255,255,255,.55);
  }
  .footer-bottom a{color:rgba(255,255,255,.55);}
  .footer-bottom a:hover{color:var(--accent);}

  /* ---------- 入场动效 ---------- */
  [data-reveal]{
    opacity:0;
    transform:translateY(12px);
    transition:opacity .55s var(--ease),transform .55s var(--ease);
  }
  [data-reveal].is-in{opacity:1;transform:none;}
  @media (prefers-reduced-motion: reduce){
    *{animation:none !important;transition:none !important;}
    [data-reveal]{opacity:1;transform:none;}
    html{scroll-behavior:auto;}
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1180px){
    .search{width:190px;}
    .nav-links{gap:20px;}
  }
  @media (max-width:1024px){
    .container,.container-wide{padding:0 24px;}
    .nav-links,.header-actions .search,.header-actions .btn{display:none;}
    .menu-btn{display:inline-flex;}
    .section{padding:72px 0;}
    .section--tight{padding:56px 0;}
    .split-grid{grid-template-columns:repeat(6,1fr);}
    .span-7,.span-5{grid-column:span 6;}
    .span-5{flex-direction:column;}
    .stat-row{grid-template-columns:repeat(2,1fr);}
    .stat:nth-child(2){border-right:0;}
    .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);}
    .deep-panel{grid-template-columns:1fr;gap:36px;padding:40px;}
    .cat-strip{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
  }
  @media (max-width:768px){
    .section{padding:60px 0;}
    .hero-cat{padding:36px 0 48px;}
    .hero-sub{font-size:16px;}
    .card--mini{flex-direction:column;}
    .card--mini .card__media{width:100%;aspect-ratio:16/9;}
    .cta-band{padding:56px 0;}
    .cta-inner{gap:28px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:520px){
    .container,.container-wide{padding:0 16px;}
    .section{padding:52px 0;}
    .hero-title{font-size:32px;}
    .stat-row{grid-template-columns:1fr;}
    .stat{border-right:0;border-bottom:1px solid var(--line);}
    .stat:last-child{border-bottom:0;}
    .cat-strip{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .deep-panel{padding:28px 22px;border-radius:16px;}
    .card__body{padding:20px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .cta-actions{width:100%;}
    .cta-actions .btn{flex:1;}
  }