/* roulang page: index */
:root{
  --brand:#123B33;
  --brand-deep:#0B1F1B;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --ink:#101413;
  --muted:#5A6560;
  --line:rgba(16,20,19,.08);
  --line-strong:rgba(16,20,19,.16);
  --accent:#C9F24D;
  --clay:#E2703A;
  --radius:14px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow:0 1px 2px rgba(16,20,19,.04),0 12px 32px -16px rgba(16,20,19,.18);
  --shadow-hover:0 2px 4px rgba(16,20,19,.06),0 22px 46px -18px rgba(16,20,19,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1200px;
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-6:48px;
  --sp-8:64px;
  --sp-12:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0 0 76px;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.88;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--clay);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sp-12) 0;}
.section-tight{padding:var(--sp-8) 0;}
.section-dark{background:var(--brand-deep);color:#E9EFEA;}
.section-dark h2,.section-dark h3{color:#FFFFFF;}
.section-dark p{color:rgba(233,239,234,.76);}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--brand);
  font-weight:600;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:24px;
  height:2px;
  background:var(--accent);
  border-radius:2px;
}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,34px);
  font-weight:700;
  line-height:1.3;
}
.section-head p{
  color:var(--muted);
  font-size:16px;
  max-width:620px;
  margin-top:10px;
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  white-space:nowrap;
}
.link-more i{transition:transform .18s var(--ease);font-size:12px;}
.link-more:hover i{transform:translateX(3px);}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:50px;
  padding:0 28px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  border:1.5px solid transparent;
  cursor:pointer;
  position:relative;
  overflow:hidden;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-accent{
  background:var(--accent);
  color:#0B1F1B;
  box-shadow:0 8px 20px -12px rgba(201,242,77,.9);
}
.btn-accent:hover{
  color:#0B1F1B;
  filter:brightness(1.04);
  box-shadow:0 14px 28px -12px rgba(201,242,77,.95);
  transform:translateY(-1px);
}
.btn-accent:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;
  border-color:var(--brand);
  color:var(--brand);
}
.btn-ghost:hover{
  background:rgba(18,59,51,.06);
  color:var(--brand);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn .shine{
  position:absolute;
  inset:0 auto 0 -60%;
  width:40%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.65),transparent);
  transform:skewX(-18deg);
  opacity:0;
  pointer-events:none;
}
.btn:hover .shine{animation:btnShine .3s var(--ease) forwards;}
@keyframes btnShine{
  0%{left:-60%;opacity:.9;}
  100%{left:120%;opacity:0;}
}

/* badges & tags */
.badge-row{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:var(--radius-pill);
  background:#FFFFFF;
  border:1px solid var(--line);
  font-size:13px;
  letter-spacing:.04em;
  color:var(--muted);
}
.badge i{color:var(--brand);font-size:12px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  font-size:13px;
  letter-spacing:.04em;
  background:rgba(18,59,51,.07);
  color:var(--brand);
  font-weight:600;
}
.tag-clay{background:rgba(226,112,58,.12);color:#B44F1F;}
.tag-accent{background:rgba(201,242,77,.32);color:#2C4A12;}

/* header */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:18px 0 12px;
  background:linear-gradient(180deg,rgba(247,246,242,.98) 62%,rgba(247,246,242,0));
  transition:padding .24s var(--ease);
}
.site-header.is-scrolled{padding:10px 0 8px;}
.nav-panel{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  background:var(--brand-deep);
  border:1px solid rgba(255,255,255,.06);
  border-radius:16px;
  padding:12px 16px 12px 20px;
  box-shadow:0 18px 40px -26px rgba(11,31,27,.9);
  transition:box-shadow .24s var(--ease),padding .24s var(--ease);
}
.site-header.is-scrolled .nav-panel{
  padding:8px 16px 8px 20px;
  box-shadow:0 22px 46px -24px rgba(11,31,27,.95);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:#FFFFFF;
  flex:0 0 auto;
}
.brand:hover{color:#FFFFFF;}
.brand-mark{
  display:block;
  font-size:15px;
  font-weight:800;
  line-height:1.16;
  letter-spacing:.02em;
}
.brand-mark small{
  display:block;
  font-size:10px;
  font-weight:500;
  letter-spacing:.18em;
  color:rgba(201,242,77,.85);
  margin-top:2px;
}
.brand-dot{
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(201,242,77,.16);
  flex:0 0 auto;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  justify-content:center;
}
.nav-card{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border-radius:10px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.07);
  color:rgba(233,239,234,.82);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.nav-card i{font-size:12px;color:rgba(201,242,77,.8);}
.nav-card:hover{
  transform:translateY(-2px);
  background:rgba(255,255,255,.11);
  color:#FFFFFF;
  border-color:rgba(255,255,255,.14);
}
.nav-card.is-active{
  background:rgba(255,255,255,.13);
  color:#FFFFFF;
  border-color:rgba(255,255,255,.16);
  position:relative;
  padding-left:20px;
}
.nav-card.is-active::before{
  content:"";
  position:absolute;
  left:8px;
  top:50%;
  transform:translateY(-50%);
  width:3px;
  height:18px;
  border-radius:3px;
  background:var(--accent);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:10px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.1);
  color:#FFFFFF;
  font-size:16px;
  cursor:pointer;
  transition:background .18s var(--ease);
}
.nav-toggle:hover{background:rgba(255,255,255,.14);}
.mobile-panel{
  display:none;
  margin-top:10px;
  background:var(--brand-deep);
  border-radius:16px;
  padding:12px;
  box-shadow:0 22px 44px -26px rgba(11,31,27,.95);
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:13px 14px;
  border-radius:10px;
  color:rgba(233,239,234,.85);
  font-size:15px;
  border:1px solid rgba(255,255,255,.06);
  background:rgba(255,255,255,.04);
  margin-bottom:8px;
}
.mobile-panel a:hover{background:rgba(255,255,255,.1);color:#FFFFFF;transform:translateY(-1px);}
.mobile-panel a.is-active{border-color:rgba(201,242,77,.4);color:#FFFFFF;}
.mobile-panel .btn{width:100%;margin-top:4px;}

/* hero */
.hero{padding:56px 0 24px;position:relative;overflow:hidden;}
.hero::before{
  content:"";
  position:absolute;
  right:-140px;
  top:-120px;
  width:520px;
  height:520px;
  border-radius:50%;
  border:1px solid rgba(18,59,51,.08);
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  right:-40px;
  top:40px;
  width:340px;
  height:340px;
  border-radius:50%;
  border:1px solid rgba(18,59,51,.06);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:48px;
  align-items:center;
  position:relative;
  z-index:1;
}
.hero-copy{grid-column:span 7;}
.hero-art{grid-column:span 5;}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.02em;
  margin-bottom:22px;
}
.hero h1 .line{display:block;opacity:0;transform:translateY(14px);animation:fadeUp .38s var(--ease) forwards;}
.hero h1 .line:nth-child(2){animation-delay:.08s;}
.hero h1 .line:nth-child(3){animation-delay:.16s;}
.hero h1 .hl{
  position:relative;
  display:inline-block;
}
.hero h1 .hl::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:4px;
  height:8px;
  border-radius:4px;
  background:var(--accent);
  opacity:.85;
  z-index:-1;
}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}
.hero-sub{
  font-size:clamp(17px,1.6vw,20px);
  color:var(--muted);
  max-width:560px;
  margin-bottom:30px;
  line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-art-frame{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:#E9E7E1;
  box-shadow:var(--shadow);
  aspect-ratio:4/3;
}
.hero-art-frame img{width:100%;height:100%;object-fit:cover;}
.hero-art-frame::after{
  content:"";
  position:absolute;
  inset:auto -30% -60% auto;
  width:260px;
  height:260px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.28);
}
.hero-art-badge{
  position:absolute;
  left:20px;
  bottom:20px;
  background:rgba(11,31,27,.86);
  color:#FFFFFF;
  border-radius:12px;
  padding:12px 16px;
  font-size:13px;
  letter-spacing:.04em;
  backdrop-filter:blur(4px);
}
.hero-art-badge strong{display:block;color:var(--accent);font-size:18px;letter-spacing:0;}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:4px;
}
.hero-stat{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--muted);
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:8px 14px;
}
.hero-stat i{color:var(--clay);font-size:12px;}

/* staggered value cards */
.value-row{
  display:grid;
  grid-template-columns:1.15fr 1fr .85fr;
  gap:22px;
  align-items:stretch;
}
.value-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px 26px;
  box-shadow:var(--shadow);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
  display:flex;
  flex-direction:column;
  gap:14px;
}
.value-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(201,242,77,.6);
}
.value-card:nth-child(2){margin-top:20px;}
.value-card:nth-child(3){margin-top:40px;}
.value-num{
  font-family:"Inter","Oswald",sans-serif;
  font-size:15px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--clay);
}
.value-icon{
  width:44px;
  height:44px;
  border-radius:12px;
  background:rgba(18,59,51,.07);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
}
.value-card h3{font-size:19px;font-weight:600;line-height:1.45;}
.value-card p{color:var(--muted);font-size:15px;line-height:1.85;}
.value-card .link-more{font-size:14px;margin-top:auto;}

/* post list */
.post-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.post-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.post-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(201,242,77,.65);
}
.post-media{
  display:block;
  aspect-ratio:16/9;
  background:#EAE8E2;
  overflow:hidden;
}
.post-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.post-card:hover .post-media img{transform:scale(1.03);}
.post-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.post-title{
  font-size:18px;
  font-weight:600;
  line-height:1.55;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-title a{color:var(--ink);}
.post-title a:hover{color:var(--brand);}
.post-excerpt{
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.04em;
}
.post-foot .dot{
  width:6px;height:6px;border-radius:50%;background:var(--clay);
  display:inline-block;margin-right:7px;vertical-align:middle;
}
.post-foot .read{color:var(--brand);font-weight:600;}
.post-feature{
  grid-column:1/-1;
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.post-feature:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(201,242,77,.65);}
.post-feature .post-media{aspect-ratio:16/10;height:100%;}
.post-feature .post-body{padding:32px;justify-content:center;}
.post-feature .post-title{font-size:22px;-webkit-line-clamp:2;}
.post-feature .post-excerpt{-webkit-line-clamp:3;font-size:15px;}
.empty-state{
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-lg);
  padding:56px 24px;
  text-align:center;
  background:#FFFFFF;
}
.empty-state p{color:var(--muted);margin-bottom:20px;font-size:15px;}

/* scenario */
.scene-row{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:48px;
  align-items:center;
}
.scene-row + .scene-row{margin-top:80px;}
.scene-media{grid-column:span 6;}
.scene-copy{grid-column:span 6;}
.scene-row.reverse .scene-media{order:2;}
.scene-row.reverse .scene-copy{order:1;}
.scene-frame{
  border-radius:var(--radius-lg);
  overflow:hidden;
  aspect-ratio:16/10;
  background:#E9E7E1;
  box-shadow:var(--shadow);
}
.scene-frame img{width:100%;height:100%;object-fit:cover;}
.scene-copy h3{font-size:clamp(20px,2.2vw,27px);font-weight:700;margin-bottom:16px;line-height:1.4;}
.scene-copy > p{color:var(--muted);margin-bottom:20px;}
.scene-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px;}
.scene-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:var(--ink);
  line-height:1.8;
}
.scene-list li i{
  color:var(--brand);
  background:rgba(201,242,77,.35);
  width:22px;height:22px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:11px;
  flex:0 0 auto;
  margin-top:5px;
}
.scene-list li span{color:var(--muted);}

/* proof */
.proof-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:rgba(255,255,255,.1);
  border-radius:var(--radius-lg);
  overflow:hidden;
  margin-bottom:56px;
}
.proof-item{
  background:var(--brand-deep);
  padding:32px 26px;
}
.proof-item strong{
  display:block;
  font-family:"Inter","Oswald",sans-serif;
  font-size:clamp(30px,3.6vw,44px);
  font-weight:700;
  color:var(--accent);
  line-height:1.1;
  letter-spacing:-.01em;
}
.proof-item span{
  display:block;
  margin-top:10px;
  font-size:13px;
  letter-spacing:.04em;
  color:rgba(233,239,234,.72);
}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.quote-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  gap:16px;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.quote-head{display:flex;align-items:center;gap:12px;}
.avatar{
  width:42px;height:42px;
  border-radius:50%;
  background:rgba(18,59,51,.08);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  font-size:16px;
  flex:0 0 auto;
}
.quote-name{font-size:15px;font-weight:600;}
.quote-role{font-size:13px;color:var(--muted);letter-spacing:.04em;}
.quote-card p{font-size:15px;color:var(--muted);line-height:1.85;}
.stars{color:var(--accent);font-size:11px;letter-spacing:3px;}

/* faq */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  margin-bottom:12px;
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
  overflow:hidden;
}
.faq-item:hover{transform:translateX(2px);border-color:rgba(201,242,77,.6);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  background:rgba(201,242,77,.35);
  position:relative;
  transition:transform .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
}
.faq-icon::before{width:12px;height:2px;left:7px;top:12px;}
.faq-icon::after{width:2px;height:12px;left:12px;top:7px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.9;}

/* cta band */
.cta-band{
  background:var(--brand-deep);
  border-radius:var(--radius-lg);
  padding:52px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:280px;height:280px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);color:#FFFFFF;margin-bottom:10px;}
.cta-band p{color:rgba(233,239,234,.75);font-size:16px;margin:0;}
.cta-band .btn{position:relative;z-index:1;}

/* footer */
.site-footer{
  background:var(--brand-deep);
  color:rgba(233,239,234,.72);
  padding:72px 0 28px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{
  color:#FFFFFF;
  font-size:16px;
  font-weight:800;
  line-height:1.3;
  margin-bottom:14px;
}
.footer-brand small{
  display:block;
  font-size:10px;
  letter-spacing:.18em;
  color:rgba(201,242,77,.8);
  font-weight:500;
  margin-top:4px;
}
.site-footer h4{
  color:#FFFFFF;
  font-size:14px;
  letter-spacing:.08em;
  font-weight:600;
  margin-bottom:18px;
}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(233,239,234,.66);}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:rgba(233,239,234,.72);font-size:14px;}
.footer-links a:hover{color:var(--accent);}
.foot-form{display:flex;flex-direction:column;gap:10px;}
.foot-form label{font-size:13px;color:rgba(233,239,234,.6);letter-spacing:.04em;}
.foot-form input{
  height:48px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
  color:#FFFFFF;
  padding:0 14px;
  font-size:14px;
  font-family:inherit;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.foot-form input::placeholder{color:rgba(233,239,234,.4);}
.foot-form input:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(201,242,77,.2);
}
.form-tip{font-size:13px;color:var(--accent);min-height:18px;margin:0;}
.footer-bottom{
  padding-top:24px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(233,239,234,.5);
  letter-spacing:.03em;
}

/* sticky bar */
.sticky-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:90;
  background:rgba(11,31,27,.96);
  border-top:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(8px);
  transition:transform .28s var(--ease),opacity .28s var(--ease);
}
.sticky-bar.is-hidden{transform:translateY(110%);opacity:0;pointer-events:none;}
.sticky-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  height:64px;
}
.sticky-inner span{color:rgba(233,239,234,.85);font-size:15px;}

/* fade up animation */
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .36s var(--ease),transform .36s var(--ease);}
.fade-up.is-in{opacity:1;transform:translateY(0);}

/* responsive */
@media (max-width:1023px){
  :root{--sp-12:76px;--sp-8:56px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-right .btn-accent{display:none;}
  .hero{padding:36px 0 16px;}
  .hero-grid{gap:32px;}
  .hero-copy{grid-column:span 12;}
  .hero-art{grid-column:span 12;}
  .hero-art-frame{aspect-ratio:16/9;}
  .value-row{grid-template-columns:1fr 1fr;}
  .value-card:nth-child(2){margin-top:0;}
  .value-card:nth-child(3){margin-top:0;grid-column:1/-1;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .post-feature{grid-template-columns:1fr;}
  .post-feature .post-media{aspect-ratio:16/9;}
  .scene-row{gap:32px;}
  .scene-media,.scene-copy{grid-column:span 12;}
  .scene-row.reverse .scene-media{order:1;}
  .scene-row.reverse .scene-copy{order:2;}
  .proof-band{grid-template-columns:repeat(2,1fr);}
  .quote-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:639px){
  :root{--sp-12:58px;--sp-8:44px;}
  .container{padding:0 16px;}
  body{padding-bottom:72px;}
  .nav-panel{padding:10px 12px;gap:12px;}
  .brand-mark{font-size:14px;}
  .hero h1{margin-bottom:16px;}
  .hero-actions .btn{width:100%;}
  .hero-art-badge{left:12px;bottom:12px;padding:10px 12px;font-size:12px;}
  .value-row{grid-template-columns:1fr;gap:16px;}
  .post-grid{grid-template-columns:1fr;}
  .post-feature .post-body{padding:22px;}
  .section-head{margin-bottom:26px;}
  .proof-band{grid-template-columns:1fr;}
  .quote-grid{gap:16px;}
  .cta-band{padding:34px 22px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .sticky-inner{height:60px;gap:12px;}
  .sticky-inner span{font-size:13px;}
  .sticky-inner .btn{height:40px;padding:0 16px;font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .fade-up{opacity:1;transform:none;}
  .hero h1 .line{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --green:#123B33;
  --deep:#0B1F1B;
  --paper:#F7F6F2;
  --white:#FFFFFF;
  --ink:#101413;
  --muted:#5A6560;
  --line:rgba(16,20,19,.08);
  --line-strong:rgba(16,20,19,.16);
  --lime:#C9F24D;
  --clay:#E2703A;
  --r-sm:10px;
  --r:14px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,20,19,.04),0 12px 32px -16px rgba(16,20,19,.18);
  --sh-2:0 2px 6px rgba(16,20,19,.06),0 22px 48px -20px rgba(16,20,19,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --s1:8px;--s2:16px;--s3:24px;--s4:40px;--s5:64px;--s6:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.12em;color:var(--green);font-weight:600;
  text-transform:none;margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--lime);border-radius:2px}
.section{padding:var(--s6) 0}
.section-head{max-width:720px;margin-bottom:var(--s4)}
.section-head h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;letter-spacing:-.015em;line-height:1.25}
.section-head p{color:var(--muted);margin-top:12px;font-size:16px}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 0;background:linear-gradient(180deg,var(--paper) 72%,rgba(247,246,242,0));transition:padding .25s var(--ease)}
.nav-panel{
  display:flex;align-items:center;gap:20px;
  background:var(--deep);
  border-radius:16px;
  padding:12px 16px;
  box-shadow:0 18px 40px -24px rgba(11,31,27,.6);
  transition:padding .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-compact{padding-top:8px}
.site-header.is-compact .nav-panel{padding:8px 14px;box-shadow:0 22px 46px -20px rgba(11,31,27,.68)}
.brand{display:flex;flex-direction:column;line-height:1.15;flex-shrink:0}
.brand-name{color:#fff;font-weight:800;font-size:17px;letter-spacing:.01em}
.brand small{font-size:10px;letter-spacing:.22em;color:rgba(255,255,255,.48);font-weight:600;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-card{
  display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.84);
  font-size:14px;white-space:nowrap;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.nav-card i{font-size:13px;color:rgba(201,242,77,.85)}
.nav-card:hover{transform:translateY(-2px);background:rgba(255,255,255,.13);color:#fff}
.nav-card.is-active{background:rgba(201,242,77,.13);color:#fff;box-shadow:inset 3px 0 0 var(--lime)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.08);color:#fff;font-size:16px;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:rgba(255,255,255,.16)}
.mobile-panel{display:none;margin-top:10px;background:var(--deep);border-radius:16px;padding:12px;box-shadow:var(--sh-2)}
.mobile-panel.is-open{display:block}
.mobile-panel .nav-card{display:flex;width:100%;height:48px;justify-content:flex-start;margin-bottom:8px}
.mobile-panel .btn{width:100%;justify-content:center;margin-top:4px}

/* ---------- 按钮 ---------- */
.btn{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-accent{background:var(--lime);color:#0B1F1B;box-shadow:0 10px 26px -14px rgba(201,242,77,.9)}
.btn-accent:hover{filter:brightness(1.05);box-shadow:0 14px 30px -12px rgba(201,242,77,.95);transform:translateY(-2px)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{border:1.5px solid var(--green);color:var(--green);background:transparent}
.btn-ghost:hover{background:rgba(18,59,51,.06);transform:translateY(-2px)}
.btn-block{width:100%}
.btn .shine{position:absolute;inset:0;background:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.6) 50%,transparent 70%);transform:translateX(-120%);transition:transform .6s var(--ease)}
.btn:hover .shine{transform:translateX(120%)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-weight:600;font-size:14px}
.link-arrow i{transition:transform .18s var(--ease)}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:34px 0 0}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--green)}
.breadcrumb .sep{color:rgba(16,20,19,.25)}
.breadcrumb .current{color:rgba(16,20,19,.45);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-head{padding:22px 0 0}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 13px;border-radius:var(--r-pill);
  font-size:13px;letter-spacing:.04em;font-weight:600;
}
.badge-cat{background:rgba(226,112,58,.13);color:#B5501F}
.badge-soft{background:rgba(18,59,51,.08);color:var(--green)}
.article-head h1{
  font-size:clamp(28px,3.9vw,46px);
  font-weight:800;letter-spacing:-.02em;line-height:1.18;
  margin:18px 0 16px;
}
.article-head h1 .hl{box-shadow:inset 0 -12px 0 rgba(201,242,77,.55)}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  font-size:13px;letter-spacing:.04em;color:var(--muted);
  padding-bottom:22px;border-bottom:1px solid var(--line);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{font-size:12px;color:var(--clay)}

/* ---------- 布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 300px;
  gap:56px;
  justify-content:center;
  padding:44px 0 var(--s4);
}
.article-side{position:relative}
.side-sticky{position:sticky;top:110px;display:grid;gap:18px}

/* ---------- 正文排版 ---------- */
.prose{font-size:17px;line-height:1.9;color:#1A201E;word-wrap:break-word;overflow-wrap:break-word}
.prose > :first-child{margin-top:0}
.prose p{margin:0 0 22px}
.prose h2{
  position:relative;
  font-size:clamp(21px,2.4vw,30px);
  font-weight:700;letter-spacing:-.01em;line-height:1.35;
  margin:48px 0 18px;padding-left:16px;
}
.prose h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:3px;background:var(--lime)}
.prose h3{font-size:20px;font-weight:700;margin:34px 0 14px}
.prose h4{font-size:17px;font-weight:700;margin:26px 0 12px}
.prose a{color:var(--green);text-decoration:underline;text-underline-offset:3px;transition:background .18s var(--ease),color .18s var(--ease)}
.prose a:hover{color:#0A2A24;background:rgba(201,242,77,.4)}
.prose ul,.prose ol{margin:0 0 22px;padding-left:0}
.prose li{position:relative;padding-left:24px;margin-bottom:10px}
.prose ul > li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--lime)}
.prose ol{counter-reset:olc}
.prose ol > li{counter-increment:olc}
.prose ol > li::before{
  content:counter(olc);
  position:absolute;left:0;top:.34em;
  font-size:12px;font-weight:700;color:var(--green);
  width:18px;height:18px;border-radius:50%;
  background:rgba(18,59,51,.1);
  display:flex;align-items:center;justify-content:center;
}
.prose blockquote{
  margin:26px 0;padding:20px 24px;
  border-left:4px solid var(--lime);
  background:var(--white);
  border-radius:0 12px 12px 0;
  color:var(--muted);
  box-shadow:var(--sh-1);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:12px;margin:26px auto;box-shadow:var(--sh-1)}
.prose figure{margin:26px 0}
.prose figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.prose table{width:100%;border-collapse:collapse;background:var(--white);border-radius:12px;overflow:hidden;display:block;overflow-x:auto;font-size:15px;box-shadow:var(--sh-1)}
.prose th,.prose td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.prose th{background:rgba(18,59,51,.05);font-weight:700}
.prose code{background:rgba(16,20,19,.06);padding:2px 7px;border-radius:6px;font-size:.92em}
.prose pre{background:var(--deep);color:#E7F2ED;padding:20px;border-radius:12px;overflow-x:auto;margin:24px 0;font-size:14px;line-height:1.7}
.prose pre code{background:none;padding:0;color:inherit}
.prose hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- 空态 ---------- */
.empty-state{
  border:1.5px dashed var(--line-strong);
  border-radius:var(--r-lg);
  padding:56px 24px;
  text-align:center;
  background:rgba(255,255,255,.65);
}
.empty-state i{font-size:26px;color:var(--clay);margin-bottom:14px;display:block}
.empty-state h3{font-size:20px;font-weight:700;margin-bottom:10px}
.empty-state p{color:var(--muted);max-width:460px;margin:0 auto 22px}

/* ---------- 尾部操作 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.tag-row .label{font-size:13px;color:var(--muted);letter-spacing:.04em;margin-right:4px}
.tag-pill{
  display:inline-flex;align-items:center;height:32px;padding:0 15px;
  border-radius:var(--r-pill);background:var(--white);
  border:1px solid var(--line);font-size:13px;color:var(--muted);
  transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.tag-pill:hover{border-color:rgba(201,242,77,.85);color:var(--green);transform:translateY(-2px)}
.back-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:24px}

/* ---------- 侧栏卡 ---------- */
.side-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:22px;
  box-shadow:var(--sh-1);
}
.side-card h3{font-size:15px;font-weight:700;margin-bottom:14px;letter-spacing:.01em}
.side-card p{font-size:14px;color:var(--muted);line-height:1.8}
.side-list{display:grid;gap:12px}
.side-list a{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#26302C;padding-bottom:12px;border-bottom:1px solid var(--line);transition:color .18s var(--ease),padding-left .18s var(--ease)}
.side-list a:last-child{border-bottom:0;padding-bottom:0}
.side-list a:hover{color:var(--green);padding-left:4px}
.side-list i{font-size:12px;color:var(--lime);margin-top:6px}
.side-cta{background:var(--green);border:0;color:#fff}
.side-cta h3{color:#fff}
.side-cta p{color:rgba(255,255,255,.72);margin-bottom:16px}
.side-cta .btn{width:100%;justify-content:center}

/* ---------- 相关推荐 ---------- */
.related{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.rec-card{
  display:block;height:100%;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:24px;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(201,242,77,.6)}
.rec-card h3{font-size:19px;font-weight:700;margin:14px 0 10px;line-height:1.4}
.rec-card p{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:16px}
.rec-meta{font-size:13px;color:var(--muted);letter-spacing:.04em;display:flex;align-items:center;gap:10px}
.rec-meta .dot{width:7px;height:7px;border-radius:50%;background:var(--clay);flex-shrink:0}
.related-note{font-size:14px;color:var(--muted);margin-bottom:26px}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:840px}
.faq-item{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r);
  overflow:hidden;
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.faq-item:hover{transform:translateX(2px);border-color:rgba(201,242,77,.6);box-shadow:var(--sh-1)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;text-align:left;padding:20px 24px;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q i{font-size:13px;color:var(--green);transition:transform .25s var(--ease);flex-shrink:0}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--muted);line-height:1.85}
.faq-item.is-open .faq-a{max-height:340px}

/* ---------- CTA 条带 ---------- */
.cta-band{background:var(--deep);color:#fff;padding:var(--s5) 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(21px,2.4vw,30px);font-weight:700;letter-spacing:-.01em;line-height:1.3}
.cta-inner p{color:rgba(255,255,255,.7);margin-top:10px;font-size:15px;max-width:640px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--paper);padding:var(--s5) 0 26px;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand{font-weight:800;font-size:17px;color:var(--ink);display:flex;flex-direction:column;line-height:1.2}
.footer-brand small{font-size:10px;letter-spacing:.22em;color:var(--muted);margin-top:4px;font-weight:600}
.site-footer p{font-size:14px;color:var(--muted);margin-top:14px;line-height:1.85}
.site-footer h4{font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.04em}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);transition:color .18s var(--ease),padding-left .18s var(--ease)}
.footer-links a:hover{color:var(--green);padding-left:4px}
.foot-form label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
.foot-form input{
  width:100%;height:48px;border-radius:12px;
  border:1px solid var(--line-strong);
  background:var(--white);
  padding:0 14px;font-size:15px;color:var(--ink);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.foot-form input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 4px rgba(201,242,77,.28)}
.foot-form input::placeholder{color:rgba(16,20,19,.34)}
.foot-form .btn{margin-top:12px}
.form-tip{font-size:13px;color:var(--muted);margin-top:10px;min-height:18px}
.form-tip.is-error{color:var(--clay)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);letter-spacing:.03em;
}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:50;
  width:46px;height:46px;border-radius:50%;
  background:var(--deep);color:var(--lime);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--green)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:40px}
}
@media (max-width:1024px){
  .section{padding:88px 0}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .article-side{order:2}
  .side-sticky{position:static;grid-template-columns:repeat(2,minmax(0,1fr));display:grid}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-panel{padding:10px 14px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:72px 0}
  .breadcrumb{padding-top:24px}
  .article-layout{padding:32px 0}
  .side-sticky{grid-template-columns:minmax(0,1fr)}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .prose{font-size:16px;line-height:1.88}
  .faq-q{padding:18px;font-size:15px}
  .faq-a p{padding:0 18px 20px}
}
@media (max-width:520px){
  .brand-name{font-size:15px}
  .nav-actions .btn-sm{display:none}
  .article-head h1{font-size:27px}
  .breadcrumb .current{max-width:100%;white-space:normal}
  .rec-card{padding:20px}
  .side-card{padding:18px}
  .btn{height:48px;padding:0 20px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category1 */
:root{
  --ink-green:#123B33;
  --deep:#0B1F1B;
  --paper:#F7F6F2;
  --white:#FFFFFF;
  --text:#101413;
  --muted:#5A6560;
  --line:rgba(16,20,19,.08);
  --line-strong:rgba(16,20,19,.14);
  --lime:#C9F24D;
  --clay:#E2703A;
  --radius:14px;
  --radius-lg:18px;
  --shadow-sm:0 1px 2px rgba(16,20,19,.04),0 12px 32px -16px rgba(16,20,19,.18);
  --shadow-hover:0 2px 4px rgba(16,20,19,.05),0 18px 40px -18px rgba(16,20,19,.26);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--text)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 通用组件 ---------- */
.btn{
  position:relative;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 26px;border:0;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.01em;
  overflow:hidden;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn .shine{
  position:absolute;inset:0;
  background:linear-gradient(100deg,transparent 25%,rgba(255,255,255,.6) 50%,transparent 75%);
  transform:translateX(-130%);
  transition:transform .3s var(--ease);
  pointer-events:none;
}
.btn:hover .shine{transform:translateX(130%)}
.btn-accent{background:var(--lime);color:#0B1F1B;box-shadow:0 8px 20px -12px rgba(201,242,77,.9)}
.btn-accent:hover{filter:brightness(1.05);box-shadow:0 14px 28px -12px rgba(201,242,77,.95)}
.btn-accent:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border:1.5px solid var(--ink-green);color:var(--ink-green)}
.btn-ghost:hover{background:var(--ink-green);color:#fff}
.btn-ghost:active{transform:translateY(1px)}
.btn-ghost-light{background:transparent;border:1.5px solid rgba(255,255,255,.4);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7)}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.btn-block{width:100%;margin-top:12px}
.btn-text{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14.5px;font-weight:700;color:var(--ink-green);
}
.btn-text i{transition:transform .18s var(--ease)}
.btn-text:hover{color:#0B6B58}
.btn-text:hover i{transform:translateX(3px)}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--ink-green);margin-bottom:18px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--lime);border-radius:2px}
.eyebrow--light{color:rgba(255,255,255,.72)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:5px 12px;border-radius:999px;
  background:rgba(226,112,58,.12);color:#B8511F;
}
.tag--green{background:rgba(18,59,51,.08);color:var(--ink-green)}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--muted);
  padding:8px 14px;border-radius:999px;
  background:var(--white);border:1px solid var(--line);
}
.pill i{color:var(--ink-green);font-size:12px}

.section{padding:96px 0}
.section--tight{padding:64px 0}
.section--dark{background:var(--deep);color:#fff}
.section--dark h2,.section--dark h3{color:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;letter-spacing:-.015em;line-height:1.28}
.section-head p{margin-top:16px;color:var(--muted);font-size:16.5px}
.section--dark .section-head p{color:rgba(255,255,255,.72)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 8px}
.nav-panel{
  display:flex;align-items:center;gap:20px;
  background:var(--deep);
  border-radius:16px;
  padding:12px 16px;
  box-shadow:0 14px 34px -22px rgba(11,31,27,.9);
  transition:padding .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled .nav-panel{
  padding:8px 16px;
  box-shadow:0 18px 38px -18px rgba(11,31,27,.95);
}
.brand{
  display:flex;flex-direction:column;line-height:1.1;
  color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em;
  flex-shrink:0;
}
.brand small{
  margin-top:3px;font-size:9.5px;font-weight:600;
  letter-spacing:.24em;color:rgba(255,255,255,.45);
}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-card{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;border-radius:12px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
  color:rgba(255,255,255,.82);
  font-size:14px;font-weight:600;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.nav-card i{font-size:13px;opacity:.8}
.nav-card:hover{transform:translateY(-2px);background:rgba(255,255,255,.14);color:#fff}
.nav-card.is-active{
  background:rgba(201,242,77,.14);
  border-color:rgba(201,242,77,.38);
  color:#fff;
}
.nav-card.is-active::before{
  content:"";width:3px;height:18px;border-radius:2px;background:var(--lime);margin-right:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
  color:#fff;font-size:16px;
}
.nav-toggle:hover{background:rgba(255,255,255,.16)}

/* ---------- 页头 ---------- */
.page-head{padding:44px 0 34px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:var(--muted)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--ink-green);text-decoration:underline}
.crumbs span.sep{opacity:.5}
.crumbs .current{color:#9AA39E}
.page-head h1{
  margin-top:22px;
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;letter-spacing:-.02em;line-height:1.15;
  max-width:22ch;
}
.page-head h1 em{
  font-style:normal;
  box-shadow:inset 0 -.22em 0 rgba(201,242,77,.85);
}
.page-head .lead{
  margin-top:20px;max-width:60ch;
  font-size:18px;color:var(--muted);line-height:1.8;
}
.page-head .pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}

/* ---------- 横幅 ---------- */
.banner{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  aspect-ratio:21/9;
  background:#E7E6E0;
  box-shadow:var(--shadow-sm);
}
.banner img{width:100%;height:100%;object-fit:cover}
.banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,31,27,.72) 0%,rgba(11,31,27,.28) 46%,rgba(11,31,27,.05) 100%);
}
.banner-caption{
  position:absolute;left:0;bottom:0;z-index:2;
  padding:32px 36px;max-width:640px;color:#fff;
}
.banner-caption strong{display:block;font-size:clamp(18px,2vw,24px);font-weight:700;letter-spacing:-.01em}
.banner-caption span{display:block;margin-top:8px;font-size:14.5px;color:rgba(255,255,255,.78)}

/* ---------- 分栏图文 ---------- */
.split{
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.split--reverse .split-media{order:-1}
.split-body h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;letter-spacing:-.015em;line-height:1.28}
.split-body p{margin-top:16px;color:var(--muted);font-size:16.5px;max-width:56ch}
.split-media{
  border-radius:var(--radius-lg);overflow:hidden;
  aspect-ratio:4/3;background:#E7E6E0;box-shadow:var(--shadow-sm);
}
.split-media img{width:100%;height:100%;object-fit:cover}

/* ---------- 步骤卡 ---------- */
.steps{display:grid;gap:16px;margin-top:8px}
.step{
  display:grid;grid-template-columns:auto 1fr;gap:20px;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.step:hover{transform:translateY(-2px);border-color:rgba(201,242,77,.55);box-shadow:var(--shadow-hover)}
.step-no{
  font-family:"Oswald","Inter",system-ui,sans-serif;
  font-size:22px;font-weight:700;color:var(--ink-green);
  line-height:1;padding-top:4px;position:relative;
}
.step-no::after{
  content:"";position:absolute;left:0;bottom:-8px;width:22px;height:3px;
  background:var(--lime);border-radius:2px;
}
.step h3{font-size:17.5px;font-weight:700;margin-bottom:8px}
.step p{font-size:15.5px;color:var(--muted);margin:0}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,1fr)}
.card{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:rgba(201,242,77,.55);box-shadow:var(--shadow-hover)}
.card-ico{
  width:46px;height:46px;border-radius:13px;
  display:grid;place-items:center;margin-bottom:18px;
  background:rgba(18,59,51,.07);color:var(--ink-green);font-size:18px;
}
.card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.card p{font-size:15.5px;color:var(--muted)}
.card .card-link{margin-top:18px}

/* ---------- 列表 ---------- */
.check-list{display:grid;gap:14px;margin-top:24px}
.check-list li{
  display:grid;grid-template-columns:auto 1fr;gap:12px;
  font-size:15.8px;color:#2C3733;
}
.check-list li::before{
  content:"";width:8px;height:8px;border-radius:2px;background:var(--lime);
  margin-top:12px;
}
.check-list li b{font-weight:700;color:var(--text)}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:36px 0;
}
.stat-num{
  font-family:"Oswald","Inter",system-ui,sans-serif;
  font-size:clamp(30px,3.6vw,42px);font-weight:700;color:var(--ink-green);line-height:1;
}
.stat-num small{font-size:15px;font-weight:700;margin-left:4px}
.stat p{margin-top:10px;font-size:14px;color:var(--muted);letter-spacing:.02em}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;text-align:left;
  font-size:17px;font-weight:700;color:var(--text);
  transition:transform .18s var(--ease),color .18s var(--ease);
}
.faq-q:hover{transform:translateX(2px);color:var(--ink-green)}
.faq-ico{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(18,59,51,.07);color:var(--ink-green);
  font-size:13px;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.faq-item.is-open .faq-ico{transform:rotate(45deg);background:var(--lime)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease),padding .3s var(--ease);
  color:var(--muted);font-size:16px;
}
.faq-item.is-open .faq-a{max-height:420px;padding-bottom:24px}
.faq-a p{max-width:80ch}

/* ---------- CTA 条带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--deep);color:#fff;
  border-radius:var(--radius-lg);
  padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-100px;
  width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(201,242,77,.22);
}
.cta-band::after{
  content:"";position:absolute;right:20px;bottom:-140px;
  width:240px;height:240px;border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
}
.cta-copy{position:relative;z-index:2;max-width:640px}
.cta-copy h2{color:#fff;font-size:clamp(21px,2.3vw,28px);font-weight:700;letter-spacing:-.01em}
.cta-copy p{margin-top:12px;color:rgba(255,255,255,.74);font-size:16px}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background:var(--deep);color:rgba(255,255,255,.78);
  border-top:1px solid rgba(255,255,255,.1);
  padding:64px 0 32px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{
  display:flex;flex-direction:column;
  color:#fff;font-weight:800;font-size:19px;letter-spacing:-.01em;line-height:1.2;
}
.footer-brand small{margin-top:6px;font-size:10px;font-weight:600;letter-spacing:.24em;color:rgba(255,255,255,.4)}
.site-footer p{margin-top:18px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:38ch}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.66);transition:color .18s var(--ease),transform .18s var(--ease)}
.footer-links a:hover{color:var(--lime);transform:translateX(2px)}
.foot-form label{display:block;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:10px}
.foot-form input{
  width:100%;height:48px;border-radius:12px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
  color:#fff;padding:0 15px;font-size:15px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.foot-form input::placeholder{color:rgba(255,255,255,.36)}
.foot-form input:focus{
  outline:none;border-color:var(--lime);
  background:rgba(255,255,255,.09);
  box-shadow:0 0 0 4px rgba(201,242,77,.2);
}
.form-tip{margin-top:10px;font-size:13px;color:var(--clay);min-height:19px}
.form-tip.is-ok{color:var(--lime)}
.footer-bottom{
  margin-top:52px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 进入视口动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .35s var(--ease),transform .35s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .site-header{padding:14px 0 6px}
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;z-index:80;
    width:min(330px,88vw);
    background:var(--deep);
    flex-direction:column;align-items:stretch;
    gap:10px;margin:0;padding:96px 20px 28px;
    transform:translateX(104%);
    transition:transform .3s var(--ease);
    box-shadow:-24px 0 48px rgba(0,0,0,.34);
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-card{
    width:100%;height:50px;justify-content:flex-start;
    background:rgba(255,255,255,.06);
  }
  .nav-card.is-active::before{height:22px}
  .nav-actions .btn{height:44px;padding:0 18px;font-size:14px}
  .split{grid-template-columns:1fr;gap:36px}
  .split--reverse .split-media{order:0}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:42px 32px}
  .section{padding:76px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 16px}
  .brand{font-size:15px}
  .nav-actions .btn{display:none}
  .page-head{padding:34px 0 26px}
  .page-head .lead{font-size:16.5px}
  .banner{aspect-ratio:16/9}
  .banner-caption{padding:22px 20px}
  .banner-caption span{display:none}
  .section{padding:60px 0}
  .section-head{margin-bottom:32px}
  .card-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:22px;padding:28px 0}
  .step{grid-template-columns:1fr;gap:12px}
  .step-no::after{bottom:-4px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding:52px 0 26px;margin-top:64px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-band{padding:34px 22px}
}
@media (max-width:520px){
  .page-head h1{font-size:27px}
  .btn{height:48px;width:100%}
  .btn-sm{width:auto}
  .cta-actions{width:100%}
  .pills .pill{font-size:12.5px;padding:7px 12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --ink-green:#123B33;
  --deep:#0B1F1B;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --text:#101413;
  --muted:#5A6560;
  --line:rgba(16,20,19,.08);
  --lime:#C9F24D;
  --clay:#E2703A;
  --radius-sm:12px;
  --radius-md:14px;
  --radius-lg:18px;
  --pill:999px;
  --shadow-1:0 1px 2px rgba(16,20,19,.04),0 12px 32px -16px rgba(16,20,19,.18);
  --shadow-2:0 2px 4px rgba(16,20,19,.06),0 22px 46px -18px rgba(16,20,19,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --num:'Inter','Oswald','Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;letter-spacing:-.02em;line-height:1.15}
h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;letter-spacing:-.015em;line-height:1.25}
h3{font-size:clamp(18px,1.6vw,21px);font-weight:600;line-height:1.45}
p{color:var(--muted)}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}

/* ---------- 布局容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:104px 0}
.section-tight{padding:72px 0}
.section-dark{background:var(--deep);color:#fff}
.section-dark p{color:rgba(255,255,255,.72)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.12em;font-weight:700;
  color:var(--ink-green);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:var(--lime)}
.section-dark .eyebrow{color:var(--lime)}
.lead{font-size:17px;line-height:1.9;margin-top:16px}
.section-head h2 + .lead{margin-top:14px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  padding:16px 0;background:var(--paper);
  transition:padding .2s var(--ease);
}
.nav-panel{
  display:flex;align-items:center;gap:16px;
  background:var(--deep);border-radius:16px;
  padding:12px 18px;box-shadow:var(--shadow-1);
  transition:padding .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled .nav-panel{padding:8px 18px;box-shadow:var(--shadow-2)}
.brand{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand-main{
  color:#fff;font-size:17px;font-weight:800;letter-spacing:-.01em;line-height:1.2;
  white-space:nowrap;
}
.brand-sub{
  font-family:var(--num);font-size:10px;letter-spacing:.2em;
  color:rgba(255,255,255,.45);font-weight:600;
}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-card{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 15px;border-radius:10px;
  background:rgba(255,255,255,.06);color:rgba(255,255,255,.78);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.nav-card i{font-size:13px;opacity:.85}
.nav-card:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}
.nav-card:active{transform:translateY(0)}
.nav-card.is-active{background:rgba(201,242,77,.12);color:#fff;padding-left:20px}
.nav-card.is-active::before{
  content:"";position:absolute;left:8px;top:50%;transform:translateY(-50%);
  width:3px;height:16px;border-radius:3px;background:var(--lime);
}
.nav-card.is-active i{color:var(--lime);opacity:1}
.nav-actions{display:flex;align-items:center;gap:10px}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:10px;border:0;
  background:rgba(255,255,255,.08);color:#fff;cursor:pointer;font-size:16px;
  transition:background .18s var(--ease);
}
.menu-toggle:hover{background:rgba(255,255,255,.16)}

/* ---------- 按钮 ---------- */
.btn{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 26px;border:0;border-radius:var(--pill);
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-accent{background:var(--lime);color:#101413;box-shadow:0 10px 26px -12px rgba(201,242,77,.85)}
.btn-accent:hover{filter:brightness(1.05);box-shadow:0 14px 30px -12px rgba(201,242,77,.95)}
.btn-accent:active{transform:translateY(1px);box-shadow:0 6px 16px -10px rgba(201,242,77,.9)}
.btn-ghost{background:transparent;border:1.5px solid var(--ink-green);color:var(--ink-green)}
.btn-ghost:hover{background:rgba(18,59,51,.06)}
.btn-light{background:#fff;color:var(--deep)}
.btn-light:hover{background:#fff;box-shadow:0 12px 28px -14px rgba(0,0,0,.5)}
.btn-outline-light{background:transparent;border:1.5px solid rgba(255,255,255,.35);color:#fff}
.btn-outline-light:hover{border-color:var(--lime);color:var(--lime)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn .shine{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(100deg,transparent 25%,rgba(255,255,255,.55) 50%,transparent 75%);
  transform:translateX(-130%);
}
.btn:hover .shine{animation:shine .55s var(--ease)}
@keyframes shine{to{transform:translateX(130%)}}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--ink-green);font-weight:700;font-size:15px;
  border-bottom:1.5px solid transparent;padding-bottom:2px;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.btn-link i{transition:transform .2s var(--ease)}
.btn-link:hover{color:#0a2a24;border-color:var(--lime)}
.btn-link:hover i{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 11px;border-radius:var(--pill);
  background:rgba(18,59,51,.07);color:var(--ink-green);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-clay{background:rgba(226,112,58,.13);color:#B4522A}
.badge-light{background:rgba(255,255,255,.12);color:#fff}
.badge-row{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap}
.crumb a{color:var(--ink-green);font-weight:600}
.crumb a:hover{color:#0a2a24;text-decoration:underline}
.crumb span.sep{opacity:.5}
.crumb .now{color:var(--muted)}

/* ---------- 页头 ---------- */
.page-head{padding:8px 0 40px}
.page-head h1{margin-bottom:18px}
.page-head .lead{max-width:720px}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}

/* ---------- 横幅图位 ---------- */
.page-banner{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  aspect-ratio:21/9;background:#E7E6E1;box-shadow:var(--shadow-1);
}
.page-banner img{width:100%;height:100%;object-fit:cover}
.banner-shade{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,31,27,.82) 0%,rgba(11,31,27,.42) 55%,rgba(11,31,27,.12) 100%);
}
.banner-tags{
  position:absolute;left:40px;bottom:36px;right:40px;
  display:flex;flex-wrap:wrap;gap:10px;
}
.banner-title{
  position:absolute;left:40px;top:38px;right:40px;color:#fff;
}
.banner-title strong{display:block;font-size:clamp(18px,2vw,24px);font-weight:700;letter-spacing:-.01em}
.banner-title em{display:block;font-style:normal;font-size:13.5px;color:rgba(255,255,255,.72);margin-top:8px;letter-spacing:.04em}

/* ---------- 卡片 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(201,242,77,.45)}
.card h3{margin-bottom:10px;color:var(--text)}
.card p{font-size:15.5px;line-height:1.8;margin:0}
.card-icon{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(18,59,51,.07);color:var(--ink-green);font-size:17px;margin-bottom:16px;
}
.card-tag{margin-bottom:14px}

/* ---------- 瀑布流双列 + 侧栏 ---------- */
.layout-split{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:40px;align-items:start}
.waterfall{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;align-items:start}
.waterfall > *:nth-child(even){margin-top:26px}
.aside-card{
  position:sticky;top:110px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-1);
}
.aside-card::before{content:"";display:block;width:44px;height:4px;border-radius:3px;background:var(--lime);margin-bottom:18px}
.aside-card h3{margin-bottom:14px}
.aside-list{display:grid;gap:12px;margin:18px 0 22px}
.aside-list li{display:flex;gap:10px;font-size:15px;color:var(--muted);line-height:1.7}
.aside-list li i{color:var(--ink-green);font-size:12px;margin-top:8px}
.aside-note{font-size:13px;color:var(--muted);border-top:1px dashed var(--line);padding-top:16px}

/* ---------- 时间线 / 步骤 ---------- */
.timeline{display:grid;gap:16px;margin-top:8px}
.step{
  display:grid;grid-template-columns:60px minmax(0,1fr);gap:22px;align-items:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:26px 26px 26px 22px;box-shadow:var(--shadow-1);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.step:hover{transform:translateY(-2px);border-color:rgba(201,242,77,.55);box-shadow:var(--shadow-2)}
.step-num{
  font-family:var(--num);font-size:22px;font-weight:700;color:var(--ink-green);
  width:52px;height:52px;border-radius:14px;background:rgba(201,242,77,.22);
  display:flex;align-items:center;justify-content:center;letter-spacing:.02em;
}
.step h3{margin-bottom:8px}
.step p{font-size:15.5px;margin:0}

/* ---------- 对照面板 ---------- */
.attr-list{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);
}
.attr-row{
  display:grid;grid-template-columns:250px minmax(0,1fr);gap:24px;
  padding:22px 28px;border-top:1px solid var(--line);
  transition:background .18s var(--ease);
}
.attr-row:first-child{border-top:0}
.attr-row:hover{background:rgba(201,242,77,.08)}
.attr-key{display:flex;align-items:flex-start;gap:10px;font-weight:700;color:var(--ink-green);font-size:16px}
.attr-key i{margin-top:5px;font-size:13px;color:var(--clay)}
.attr-val{font-size:15.5px;color:var(--muted);line-height:1.85}

/* ---------- 图文块 ---------- */
.media-block{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:48px;align-items:center}
.media-figure{
  border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/3;
  background:#E7E6E1;box-shadow:var(--shadow-1);position:relative;
}
.media-figure img{width:100%;height:100%;object-fit:cover}
.media-figure::after{
  content:"";position:absolute;inset:auto 0 0 0;height:38%;
  background:linear-gradient(180deg,transparent,rgba(11,31,27,.45));
}
.check-list{display:grid;gap:18px;margin:24px 0 28px}
.check-list li{display:grid;grid-template-columns:26px minmax(0,1fr);gap:14px;align-items:start}
.check-list i{
  width:26px;height:26px;border-radius:8px;background:rgba(201,242,77,.3);
  color:var(--ink-green);display:flex;align-items:center;justify-content:center;font-size:12px;margin-top:4px;
}
.check-list strong{display:block;font-size:16px;font-weight:700;color:var(--text);margin-bottom:4px}
.check-list span{font-size:15px;color:var(--muted);line-height:1.8}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);transition:transform .18s var(--ease)}
.faq-item:hover{transform:translateX(2px)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;font-size:17px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-family:var(--num);font-size:22px;font-weight:600;color:var(--ink-green);
  transition:transform .22s var(--ease);flex:0 0 auto;line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--clay)}
.faq-body{padding:0 4px 26px;max-width:840px}
.faq-body p{font-size:15.5px;line-height:1.9}

/* ---------- CTA 条带 ---------- */
.cta-band{
  background:var(--deep);border-radius:var(--radius-lg);
  padding:52px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(201,242,77,.22);
}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.72);font-size:16px;max-width:620px;margin:0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:104px;background:#fff;border-top:1px solid var(--line);
  padding:72px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:44px}
.footer-brand{font-size:18px;font-weight:800;color:var(--deep);letter-spacing:-.01em;margin-bottom:14px}
.footer-brand small{display:block;font-family:var(--num);font-size:10px;letter-spacing:.2em;color:var(--muted);font-weight:600;margin-top:6px}
.site-footer p{font-size:14.5px;line-height:1.85;color:var(--muted)}
.site-footer h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14.5px;color:var(--muted);transition:color .18s var(--ease),transform .18s var(--ease);display:inline-block}
.footer-links a:hover{color:var(--ink-green);transform:translateX(3px)}
.foot-form label{display:block;font-size:13px;color:var(--muted);margin-bottom:10px;line-height:1.7}
.foot-form input{
  width:100%;height:48px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--paper);
  padding:0 16px;font-size:15px;color:var(--text);margin-bottom:12px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.foot-form input::placeholder{color:#9AA39F}
.foot-form input:focus{
  outline:none;border-color:var(--ink-green);
  box-shadow:0 0 0 4px rgba(201,242,77,.35);
}
.form-tip{font-size:13px;color:var(--muted);margin-top:12px;min-height:18px}
.form-tip.is-error{color:var(--clay)}
.form-tip.is-ok{color:var(--ink-green)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);
  padding:24px 0 34px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .38s var(--ease),transform .38s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  body{font-size:16px}
  .section{padding:80px 0}
  .layout-split{grid-template-columns:minmax(0,1fr);gap:32px}
  .aside-card{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .media-block{grid-template-columns:minmax(0,1fr);gap:32px}
  .waterfall > *:nth-child(even){margin-top:0}
  .cta-band{padding:40px;flex-direction:column;align-items:flex-start;gap:26px}
  .nav-links{
    position:absolute;left:24px;right:24px;top:calc(100% + 10px);
    display:none;flex-direction:column;align-items:stretch;gap:8px;
    background:var(--deep);border-radius:16px;padding:14px;
    box-shadow:var(--shadow-2);margin-left:0;
  }
  .site-header.nav-open .nav-links{display:flex}
  .nav-card{width:100%;justify-content:flex-start;height:46px}
  .nav-card.is-active{padding-left:22px}
  .menu-toggle{display:inline-flex}
  .nav-panel{position:relative}
  .nav-actions .btn{display:none}
}
@media (max-width:768px){
  .waterfall{grid-template-columns:minmax(0,1fr)}
  .attr-row{grid-template-columns:minmax(0,1fr);gap:10px;padding:20px}
  .step{grid-template-columns:48px minmax(0,1fr);gap:16px;padding:22px 20px}
  .step-num{width:44px;height:44px;font-size:19px;border-radius:12px}
  .page-banner{aspect-ratio:16/9}
  .banner-title{left:22px;top:22px;right:22px}
  .banner-tags{left:22px;right:22px;bottom:20px}
  .banner-title em{display:none}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:64px 0}
  .card{padding:20px}
  .cta-band{padding:30px 22px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .nav-links{left:16px;right:16px}
  .brand-main{font-size:15px}
  .site-header{padding:12px 0}
  .page-head{padding:4px 0 28px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}