/* roulang page: index */
:root{
  --ink:#0F1214;
  --panel:#14181A;
  --green:#18B66A;
  --orange:#FF6B2C;
  --orange-dark:#E85A1E;
  --bg:#F5F3EE;
  --card:#FFFFFF;
  --border:#E3E0D8;
  --text:#262A2D;
  --muted:#6A6F73;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow:0 12px 30px rgba(15,18,20,.08);
  --shadow-hover:0 22px 46px rgba(15,18,20,.16);
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:MiSans,"HarmonyOS Sans SC","PingFang SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .22s ease;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em;line-height:1.22;font-weight:800;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.container-wide{max-width:1280px;}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:14px 0 8px;
  background:linear-gradient(180deg,rgba(245,243,238,.96) 60%,rgba(245,243,238,.72) 100%);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:18px;
  background:var(--panel);
  border:1px solid rgba(255,255,255,.10);
  border-radius:16px;
  padding:14px 18px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),0 16px 34px rgba(15,18,20,.20);
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--orange) 0%,#FFA170 100%);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:#fff;letter-spacing:0;
  box-shadow:0 6px 16px rgba(255,107,44,.34);
}
.brand-text{color:#fff;font-size:17px;font-weight:800;white-space:nowrap;letter-spacing:-.01em;}
.nav-cards{
  display:flex;align-items:center;gap:8px;
  flex:1 1 auto;min-width:0;
  overflow-x:auto;scrollbar-width:none;
  padding:2px;
}
.nav-cards::-webkit-scrollbar{display:none;}
.nav-card{
  display:flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:10px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  color:rgba(255,255,255,.76);
  font-size:13.5px;font-weight:600;white-space:nowrap;
  transition:background .22s ease,color .22s ease,transform .22s ease,border-color .22s ease;
}
.nav-card i{font-size:12.5px;color:rgba(255,255,255,.5);transition:color .22s ease;}
.nav-card:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px);}
.nav-card:hover i{color:var(--green);}
.nav-card.active{
  background:rgba(255,107,44,.14);
  border-color:rgba(255,107,44,.42);
  color:#fff;
  box-shadow:inset 3px 0 0 var(--orange);
}
.nav-card.active i{color:var(--orange);}
.nav-cta{flex:0 0 auto;}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:11px;
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:background .24s ease,color .24s ease,transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 10px 24px rgba(255,107,44,.28);}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 16px 32px rgba(255,107,44,.34);}
.btn-outline{border-color:rgba(15,18,20,.22);color:var(--ink);background:transparent;}
.btn-outline:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-1px);}
.btn-ghost-light{border-color:rgba(255,255,255,.28);color:#fff;}
.btn-ghost-light:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn-sm{padding:10px 18px;font-size:13.5px;border-radius:10px;}
.btn-block{width:100%;}
.btn i{font-size:13px;transition:transform .24s ease;}
.btn:hover i{transform:translateX(3px);}

.link-arrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:700;color:var(--ink);
  border-bottom:2px solid transparent;
  transition:color .22s ease,border-color .22s ease;
}
.link-arrow i{font-size:12px;transition:transform .24s ease;}
.link-arrow:hover{color:var(--green);border-color:var(--green);}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ HERO ============ */
.hero{padding:56px 0 56px;}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:52px;align-items:center;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;
  background:rgba(24,182,106,.12);
  border:1px solid rgba(24,182,106,.28);
  color:#0E7A47;font-size:13px;font-weight:700;
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(24,182,106,.18);}
.hero h1{
  font-size:clamp(40px,5.2vw,68px);
  line-height:1.08;
  margin:22px 0 20px;
  letter-spacing:-.025em;
}
.hero h1 .accent{
  background:linear-gradient(180deg,transparent 62%,rgba(255,107,44,.34) 62%);
  padding:0 2px;
}
.hero-sub{
  font-size:17.5px;line-height:1.85;color:var(--muted);
  max-width:600px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-notes{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px;
  font-size:13.5px;color:var(--muted);
}
.hero-notes span{display:inline-flex;align-items:center;gap:7px;}
.hero-notes i{color:var(--green);font-size:12px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;height:auto;aspect-ratio:5/6;object-fit:cover;
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-hover);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(15,18,20,.34) 0%,rgba(15,18,20,.06) 46%,rgba(255,107,44,.18) 100%);
  pointer-events:none;
}
.hero-float{
  position:absolute;left:-18px;bottom:26px;z-index:3;
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-md);padding:16px 20px;
  box-shadow:var(--shadow);
  display:flex;align-items:center;gap:14px;
}
.hero-float .num{font-size:26px;font-weight:800;color:var(--ink);line-height:1;font-family:"DIN Alternate","Arial Narrow",sans-serif;}
.hero-float .lbl{font-size:12.5px;color:var(--muted);line-height:1.5;}

/* ============ METRIC STRIP ============ */
.metric-strip{padding:0 0 64px;}
.metric-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  background:var(--panel);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:0 18px 40px rgba(15,18,20,.18);
}
.metric-cell{
  padding:28px 26px;
  border-right:1px solid rgba(255,255,255,.09);
}
.metric-cell:last-child{border-right:0;}
.metric-cell .k{
  font-size:32px;font-weight:800;color:#fff;line-height:1;
  letter-spacing:-.03em;font-family:"DIN Alternate","Arial Narrow",sans-serif;
  display:flex;align-items:baseline;gap:4px;
}
.metric-cell .k em{font-style:normal;font-size:15px;font-weight:700;color:var(--orange);}
.metric-cell .t{font-size:13.5px;color:rgba(255,255,255,.58);margin-top:9px;}

/* ============ SECTIONS ============ */
.section{padding:76px 0;}
.section--tight{padding:56px 0;}
.section--dark{background:var(--panel);}
.section--dark h2,.section--dark h3{color:#fff;}
.section--dark .eyebrow{color:var(--orange);}
.section--dark p{color:rgba(255,255,255,.66);}
.section--paper{background:#EFEBE3;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:800;letter-spacing:.14em;
  color:var(--orange);text-transform:uppercase;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--orange);border-radius:2px;}
.section-head h2{font-size:clamp(28px,3.1vw,40px);margin:14px 0 14px;}
.section-head p{color:var(--muted);font-size:16px;max-width:700px;}

/* ============ STORY ============ */
.story-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.story-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);}
.story-media img{width:100%;aspect-ratio:4/5;object-fit:cover;}
.story-media .badge-float{
  position:absolute;left:18px;top:18px;
  background:rgba(20,24,26,.86);color:#fff;
  border:1px solid rgba(255,255,255,.16);
  border-radius:999px;padding:7px 15px;font-size:12.5px;font-weight:700;
  backdrop-filter:blur(6px);
}
.story-list{display:flex;flex-direction:column;gap:0;}
.story-item{
  display:grid;grid-template-columns:64px 1fr;gap:20px;
  padding:26px 0;border-top:1px solid var(--border);
}
.story-item:first-child{border-top:0;padding-top:0;}
.story-item .idx{
  font-size:22px;font-weight:800;color:var(--orange);
  font-family:"DIN Alternate","Arial Narrow",sans-serif;line-height:1.2;
  letter-spacing:-.02em;
}
.story-item h3{font-size:20px;margin-bottom:9px;}
.story-item p{color:var(--muted);font-size:15.5px;}
.story-item ul{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px;}
.story-item ul li{
  font-size:12.5px;color:#0E7A47;background:rgba(24,182,106,.10);
  border:1px solid rgba(24,182,106,.22);
  border-radius:999px;padding:4px 12px;font-weight:600;
}

/* ============ FEATURE CARDS ============ */
.feature-grid{display:grid;grid-template-columns:8fr 4fr;gap:24px;align-items:stretch;}
.feature-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D6D2C7;}
.card-cover{position:relative;overflow:hidden;background:#E7E3DA;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-cover img{transform:scale(1.03);}
.card-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1;}
.card-badge{
  align-self:flex-start;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:700;
  background:rgba(24,182,106,.12);color:#0E7A47;
  border:1px solid rgba(24,182,106,.24);
  margin-bottom:14px;
}
.card-badge.orange{background:rgba(255,107,44,.12);color:#C64C15;border-color:rgba(255,107,44,.26);}
.card-body h3{font-size:21px;line-height:1.35;margin-bottom:11px;}
.card-body p{color:var(--muted);font-size:14.8px;flex:1;}
.card-body .link-arrow{margin-top:18px;}
.card-lg .card-cover{aspect-ratio:16/8;}
.card-sm .card-cover{aspect-ratio:16/7;}
.card-sm .card-body{padding:20px 22px 22px;}
.card-sm .card-body h3{font-size:17.5px;}
.card-sm .card-body p{font-size:14px;}

/* ============ POST LIST ============ */
.post-list{display:flex;flex-direction:column;gap:14px;}
.post-row{
  display:grid;grid-template-columns:132px 1fr auto;gap:24px;align-items:center;
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-md);padding:16px 22px 16px 16px;
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease;
}
.post-row:hover{background:#FFFDF9;border-color:#D6D2C7;box-shadow:var(--shadow);transform:translateY(-3px);}
.post-thumb{border-radius:var(--radius-sm);overflow:hidden;background:#E7E3DA;}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.post-main{min-width:0;}
.post-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:9px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:700;
  background:#EFEBE3;color:#4C5257;border:1px solid var(--border);
}
.badge-green{background:rgba(24,182,106,.12);color:#0E7A47;border-color:rgba(24,182,106,.22);}
.post-main h3{font-size:18px;line-height:1.45;margin-bottom:7px;}
.post-summary{color:var(--muted);font-size:14.2px;line-height:1.68;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-go{
  width:42px;height:42px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#EFEBE3;color:var(--ink);font-size:13px;
  transition:background .24s ease,color .24s ease,transform .24s ease;
}
.post-row:hover .post-go{background:var(--orange);color:#fff;transform:translateX(4px);}
.empty-state{
  background:var(--card);border:1px dashed #D6D2C7;border-radius:var(--radius-md);
  padding:44px 24px;text-align:center;color:var(--muted);font-size:15px;
}
.empty-state i{display:block;font-size:24px;margin-bottom:12px;color:#C6C1B6;}

/* ============ TRUST ============ */
.trust-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.trust-figures{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.figure-card{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-md);
  padding:24px 22px;
}
.figure-card .k{font-size:30px;font-weight:800;color:#fff;line-height:1;font-family:"DIN Alternate","Arial Narrow",sans-serif;letter-spacing:-.03em;}
.figure-card .t{font-size:13px;color:rgba(255,255,255,.56);margin-top:10px;line-height:1.6;}
.quote-list{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.quote-card{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-md);
  padding:26px 24px;
}
.quote-card .mark{color:var(--orange);font-size:17px;margin-bottom:12px;}
.quote-card p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.8;}
.quote-card .who{
  margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.5);
}
.trust-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.trust-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 15px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.04);
  color:rgba(255,255,255,.8);font-size:13px;font-weight:600;
}
.trust-badge i{color:var(--green);font-size:12px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{border-top:1px solid var(--border);}
.faq-item:last-child{border-bottom:1px solid var(--border);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:22px 18px;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);
  border-radius:12px;
  transition:background .22s ease,color .22s ease;
}
.faq-q:hover{background:#EFEBE3;}
.faq-q .ico{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  background:#EFEBE3;color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:background .24s ease,color .24s ease,transform .3s ease;
}
.faq-item.open .faq-q .ico{background:var(--orange);color:#fff;transform:rotate(135deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-a p{padding:0 18px 24px;max-width:760px;color:var(--muted);font-size:15.5px;line-height:1.85;}
.faq-item.open .faq-a{max-height:420px;}

/* ============ CTA ============ */
.cta-band{
  background:var(--panel);
  border-radius:22px;
  padding:52px 48px;
  display:grid;grid-template-columns:6fr 6fr;gap:52px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,44,.24) 0%,rgba(255,107,44,0) 68%);
}
.cta-band h2{color:#fff;font-size:clamp(26px,2.8vw,36px);margin-bottom:14px;position:relative;}
.cta-band p{color:rgba(255,255,255,.64);font-size:15.5px;position:relative;}
.cta-form{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:end;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13px;font-weight:700;color:rgba(255,255,255,.72);}
.field input{
  height:48px;border-radius:10px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  color:#fff;padding:0 15px;font-size:14.5px;
  transition:border-color .22s ease,background .22s ease,box-shadow .22s ease;
}
.field input::placeholder{color:rgba(255,255,255,.38);}
.field input:focus{outline:none;border-color:var(--green);background:rgba(255,255,255,.10);box-shadow:0 0 0 3px rgba(24,182,106,.22);}
.cta-form .form-note{grid-column:1/-1;font-size:12.5px;color:rgba(255,255,255,.44);}
.cta-form .btn{grid-column:1/-1;}

/* ============ FOOTER ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:68px 0 26px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 3fr 2.5fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand span{color:#fff;font-size:17px;font-weight:800;}
.footer-col h4{color:#fff;font-size:14.5px;margin-bottom:18px;letter-spacing:.02em;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.56);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.64);}
.footer-col ul a:hover{color:var(--green);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.44);
}
.footer-bottom a:hover{color:var(--green);}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;}
.reveal.show{opacity:1;transform:none;}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero-media img{aspect-ratio:16/10;}
  .hero-float{left:16px;bottom:16px;}
  .metric-band{grid-template-columns:1fr 1fr;}
  .metric-cell:nth-child(2){border-right:0;}
  .metric-cell:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.09);}
  .story-grid{grid-template-columns:1fr;gap:36px;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-side{grid-template-rows:auto;grid-template-columns:1fr 1fr;}
  .trust-grid{grid-template-columns:1fr;gap:34px;}
  .cta-band{grid-template-columns:1fr;gap:34px;padding:44px 34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .nav-panel{flex-wrap:wrap;gap:12px;padding:12px 14px;}
  .nav-cards{order:3;width:100%;flex:1 0 100%;}
  .nav-cta{margin-left:auto;}
  .hero{padding:36px 0 44px;}
  .hero h1{font-size:clamp(32px,8vw,44px);}
  .section{padding:52px 0;}
  .metric-cell{padding:22px 20px;}
  .metric-cell .k{font-size:26px;}
  .feature-side{grid-template-columns:1fr;}
  .post-row{grid-template-columns:1fr;gap:16px;padding:18px;}
  .post-thumb img{aspect-ratio:16/8;}
  .post-go{display:none;}
  .quote-list{grid-template-columns:1fr;}
  .cta-form{grid-template-columns:1fr;}
  .cta-band{padding:34px 22px;border-radius:18px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:10px;}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%;}
  .metric-band{grid-template-columns:1fr;}
  .metric-cell{border-right:0;border-bottom:1px solid rgba(255,255,255,.09);}
  .metric-cell:last-child{border-bottom:0;}
  .trust-figures{grid-template-columns:1fr;}
  .story-item{grid-template-columns:1fr;gap:10px;}
  .brand-text{font-size:15px;}
  .faq-q{font-size:15.5px;padding:18px 12px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --ink:#0F1214;
  --panel:#14181A;
  --green:#18B66A;
  --orange:#FF6B2C;
  --orange-dark:#E85A1E;
  --bg:#F5F3EE;
  --surface:#FFFFFF;
  --surface-soft:#EFEDE6;
  --border:#E3E0D8;
  --text:#262A2D;
  --text-soft:#2B2F32;
  --muted:#6A6F73;
  --radius-xl:20px;
  --radius-lg:16px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 12px 30px rgba(15,18,20,.08);
  --shadow-lg:0 18px 44px rgba(15,18,20,.14);
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:MiSans,"HarmonyOS Sans SC","PingFang SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
button,input,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:6px}
::selection{background:rgba(255,107,44,.22)}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.container-wide{max-width:1280px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:11px;font-weight:700;line-height:1;
  cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 10px 22px rgba(255,107,44,.28)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-1px);box-shadow:0 15px 30px rgba(255,107,44,.34);color:#fff}
.btn-outline{border-color:var(--border);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-1px)}
.btn-ghost{color:rgba(255,255,255,.86);border-color:rgba(255,255,255,.24);background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.btn-sm{padding:10px 16px;font-size:14px}
.btn-lg{padding:15px 26px;font-size:16px}
.btn-block{width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:14px 0 10px;
  background:linear-gradient(180deg,rgba(245,243,238,.97),rgba(245,243,238,.76));
  backdrop-filter:blur(12px);
}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--panel);
  border:1px solid rgba(255,255,255,.12);
  border-radius:18px;
  padding:13px 18px;
  box-shadow:0 18px 40px rgba(15,18,20,.22),inset 0 1px 0 rgba(255,255,255,.06);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  display:grid;place-items:center;width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--orange),#FF9160);
  color:#fff;font-size:14px;font-weight:800;letter-spacing:.03em;
}
.brand-text{color:#fff;font-size:16px;font-weight:800;letter-spacing:-.01em}
.nav-cards{display:flex;align-items:center;gap:8px;flex:1;overflow-x:auto;scrollbar-width:none}
.nav-cards::-webkit-scrollbar{display:none}
.nav-card{
  display:flex;align-items:center;gap:8px;white-space:nowrap;
  padding:9px 13px;border-radius:11px;
  color:rgba(255,255,255,.72);font-size:14.5px;
  border:1px solid transparent;border-left:3px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.nav-card i{font-size:13px;color:var(--green)}
.nav-card:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-card.active{color:#fff;background:rgba(255,107,44,.14);border-color:rgba(255,255,255,.08);border-left:3px solid var(--orange)}
.nav-cta{flex-shrink:0}

/* ---------- post hero ---------- */
.post-hero{padding:34px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:var(--muted);margin-bottom:20px}
.breadcrumb a:hover{color:var(--green)}
.breadcrumb .sep{color:#B8B3A7}
.breadcrumb .current{color:var(--orange);font-weight:700}
.post-head{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-xl);
  padding:34px 38px 30px;
  box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.post-head::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(24,182,106,.14),transparent 68%);
  pointer-events:none;
}
.post-title{
  font-size:clamp(30px,4.2vw,48px);
  font-weight:800;line-height:1.22;letter-spacing:-.02em;
  color:var(--ink);margin:16px 0 20px;max-width:22em;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;
  font-size:13px;font-weight:700;line-height:1;
}
.badge-orange{background:rgba(255,107,44,.13);color:#C24A12}
.badge-green{background:rgba(24,182,106,.13);color:#0E7F4A}
.badge-plain{background:var(--surface-soft);color:var(--muted)}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:14px;color:var(--muted)}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item i{color:var(--green);font-size:13px}

/* ---------- article layout ---------- */
.post-body-section{padding:44px 0 20px}
.post-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:46px;align-items:start}

.article-body{
  font-size:17.5px;line-height:1.92;color:var(--text-soft);
  max-width:800px;word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  font-size:clamp(22px,2.7vw,29px);font-weight:800;letter-spacing:-.015em;color:var(--ink);
  line-height:1.35;margin:2em 0 .7em;padding-left:15px;border-left:4px solid var(--orange);
}
.article-body h3{font-size:20px;font-weight:700;color:var(--ink);margin:1.7em 0 .6em;line-height:1.45}
.article-body h4{font-size:17.5px;font-weight:700;color:var(--ink);margin:1.4em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.35em}
.article-body li{position:relative;margin-bottom:.62em}
.article-body ul li{padding-left:22px}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.75em;width:7px;height:7px;border-radius:50%;background:var(--green);
}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li;padding-left:30px}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.12em;
  font-size:14px;font-weight:800;color:var(--orange);font-variant-numeric:tabular-nums;
}
.article-body strong{color:var(--ink);font-weight:700}
.article-body a{color:var(--orange);border-bottom:1px solid rgba(255,107,44,.35)}
.article-body a:hover{color:var(--orange-dark);border-color:var(--orange-dark)}
.article-body blockquote{
  margin:1.6em 0;padding:20px 24px;background:var(--surface);
  border-left:4px solid var(--green);border-radius:0 var(--radius) var(--radius) 0;
  color:var(--muted);font-size:16.5px;line-height:1.85;box-shadow:var(--shadow);
}
.article-body img{border-radius:12px;margin:1.6em 0;box-shadow:var(--shadow);height:auto}
.article-body figure{margin:1.6em 0}
.article-body figure img{margin:0}
.article-body figcaption{font-size:13.5px;color:var(--muted);text-align:center;margin-top:10px}
.article-body hr{border:none;height:1px;background:var(--border);margin:2.4em 0}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px;background:var(--surface);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}
.article-body th{background:var(--surface-soft);font-weight:700;color:var(--ink)}
.article-body tr:last-child td{border-bottom:none}
.article-body code{background:var(--surface-soft);padding:2px 7px;border-radius:6px;font-size:14.5px;color:#B1481A;word-break:break-all}
.article-body pre{background:var(--panel);color:#E9E7E2;padding:20px;border-radius:var(--radius);overflow-x:auto;font-size:14.5px;line-height:1.75;margin:1.6em 0}
.article-body pre code{background:none;color:inherit;padding:0}

.post-foot{
  margin-top:44px;padding-top:26px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.post-foot .back-link{display:inline-flex;align-items:center;gap:9px;font-weight:700;color:var(--ink);font-size:15px}
.post-foot .back-link i{color:var(--orange);transition:transform .22s ease}
.post-foot .back-link:hover{color:var(--orange)}
.post-foot .back-link:hover i{transform:translateX(-4px)}
.post-tags{display:flex;flex-wrap:wrap;gap:8px}

.empty-state{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);
  padding:56px 34px;text-align:center;box-shadow:var(--shadow);
}
.empty-state .empty-icon{
  width:64px;height:64px;border-radius:20px;display:grid;place-items:center;margin:0 auto 20px;
  background:rgba(255,107,44,.12);color:var(--orange);font-size:24px;
}
.empty-state h2{font-size:24px;font-weight:800;color:var(--ink);margin-bottom:12px}
.empty-state p{max-width:520px;margin:0 auto 26px;color:var(--muted);font-size:16px;line-height:1.85}

/* ---------- sidebar ---------- */
.post-side{position:sticky;top:100px;display:flex;flex-direction:column;gap:18px}
.side-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow)}
.side-title{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:16px;letter-spacing:-.01em}
.info-list li{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px dashed var(--border);font-size:14.5px}
.info-list li:last-child{border-bottom:none;padding-bottom:0}
.info-list li span{color:var(--muted)}
.info-list li strong{color:var(--ink);font-weight:700;text-align:right}
.side-card-dark{background:var(--panel);border-color:rgba(255,255,255,.12);color:rgba(255,255,255,.74)}
.side-card-dark .side-title{color:#fff}
.side-card-dark p{font-size:14.5px;line-height:1.85;margin-bottom:18px}
.side-links li{border-bottom:1px solid var(--border)}
.side-links li:last-child{border-bottom:none}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;font-size:14.5px;font-weight:600;color:var(--ink);
}
.side-links a i{color:var(--orange);font-size:12px;opacity:.7;transition:transform .22s ease,opacity .22s ease}
.side-links a:hover{color:var(--orange)}
.side-links a:hover i{transform:translateX(4px);opacity:1}

/* ---------- related ---------- */
.related{padding:72px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:30px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.28}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:800;color:var(--orange);letter-spacing:.14em;text-transform:uppercase;margin-bottom:12px}
.section-head .eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--orange)}
.section-head p{color:var(--muted);font-size:15px;max-width:520px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{position:absolute;left:14px;top:14px;background:rgba(15,18,20,.78);color:#fff;backdrop-filter:blur(4px)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:18px;font-weight:800;color:var(--ink);line-height:1.45}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.8}
.card-more{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--orange)}
.card-more i{transition:transform .22s ease}
.card:hover .card-more i{transform:translateX(4px)}

/* ---------- cta strip ---------- */
.cta-strip{padding:76px 0 0}
.cta-inner{
  background:var(--panel);
  border:1px solid rgba(255,255,255,.12);
  border-radius:24px;
  padding:50px 46px;
  display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-90px;bottom:-110px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,44,.22),transparent 70%);
}
.cta-inner h2{color:#fff;font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.3;letter-spacing:-.02em;margin-bottom:14px}
.cta-inner p{color:rgba(255,255,255,.7);font-size:16px;line-height:1.85;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);margin-top:88px;padding:66px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:11px;color:#fff;font-size:17px;font-weight:800;margin-bottom:16px}
.footer-col p{font-size:14.5px;line-height:1.9;max-width:330px;color:rgba(255,255,255,.62)}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:18px;letter-spacing:.01em}
.footer-col ul li{margin-bottom:11px;font-size:14.5px}
.footer-col ul li a{color:rgba(255,255,255,.68)}
.footer-col ul li a:hover{color:var(--green)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:46px;padding-top:22px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13.5px;color:rgba(255,255,255,.48);
}

/* ---------- motion ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.post-head,.post-layout,.related-grid,.cta-inner{animation:fadeUp .6s ease both}
.post-layout{animation-delay:.06s}
.related-grid{animation-delay:.1s}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-panel{flex-wrap:wrap;gap:12px}
  .nav-cards{order:3;flex-basis:100%;padding-top:4px}
  .nav-cta{order:2;margin-left:auto}
}
@media (max-width:1080px){
  .post-layout{grid-template-columns:1fr;gap:36px}
  .post-side{position:static;top:auto;flex-direction:row;flex-wrap:wrap}
  .post-side .side-card{flex:1 1 280px}
  .cta-inner{grid-template-columns:1fr;padding:42px 32px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:820px){
  .related-grid{grid-template-columns:1fr 1fr}
  .post-head{padding:28px 26px 26px}
  .post-body-section{padding:34px 0 16px}
  .related{padding-top:56px}
  .cta-strip{padding-top:58px}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 18px}
  .site-header{padding:10px 0 8px}
  .nav-panel{padding:11px 13px;border-radius:16px;gap:10px}
  .brand-mark{width:34px;height:34px;border-radius:9px;font-size:13px}
  .brand-text{font-size:14px}
  .nav-card{font-size:13.5px;padding:8px 11px}
  .post-hero{padding-top:24px}
  .post-title{font-size:clamp(25px,7vw,32px)}
  .post-meta{gap:12px;font-size:13.5px}
  .article-body{font-size:16.5px;line-height:1.9}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .related-grid{grid-template-columns:1fr}
  .post-side{flex-direction:column}
  .post-side .side-card{flex:1 1 auto}
  .cta-inner{padding:32px 22px;border-radius:18px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
  .post-head{padding:24px 20px}
  .article-body table,.article-body thead,.article-body tbody,.article-body tr,.article-body th,.article-body td{display:block}
  .article-body thead{display:none}
  .article-body table{border:none;background:transparent}
  .article-body tr{background:var(--surface);border:1px solid var(--border);border-radius:12px;margin-bottom:12px;padding:4px 0}
  .article-body td{border-bottom:1px dashed var(--border);padding:10px 16px}
  .article-body td:last-child{border-bottom:none}
}

/* roulang page: category1 */
:root{
  --ink:#0F1214;
  --panel:#14181A;
  --green:#18B66A;
  --orange:#FF6B2C;
  --orange-dark:#E85A1E;
  --bg:#F5F3EE;
  --surface:#FFFFFF;
  --line:#E3E0D8;
  --text:#262A2D;
  --muted:#6A6F73;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:11px;
  --shadow-sm:0 6px 18px rgba(15,18,20,.06);
  --shadow:0 12px 30px rgba(15,18,20,.08);
  --shadow-lg:0 22px 52px rgba(15,18,20,.16);
  --section-space:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"MiSans","HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em;line-height:1.22;}
p{margin:0;}
h1{font-size:clamp(32px,4.4vw,54px);font-weight:800;}
h2{font-size:clamp(24px,2.8vw,36px);font-weight:800;}
h3{font-size:clamp(18px,1.6vw,22px);font-weight:700;}
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 22px;}
.container-wide{max-width:1280px;}
.section{padding:var(--section-space) 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--orange);margin-bottom:14px;
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16.5px;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:14px 0;
  background:rgba(245,243,238,.86);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid rgba(227,224,216,.7);
}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--panel);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius-md);
  padding:14px 18px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05),0 16px 34px rgba(15,18,20,.18);
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:var(--orange);color:#fff;
  font-size:14px;font-weight:800;letter-spacing:.02em;
  font-family:"DIN Alternate","Arial Narrow",Arial,sans-serif;
}
.brand-text{color:#fff;font-size:16px;font-weight:700;white-space:nowrap;}
.nav-cards{display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0;}
.nav-card{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 13px;border-radius:12px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
  color:rgba(255,255,255,.78);
  font-size:14px;white-space:nowrap;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.nav-card i{font-size:13px;opacity:.9;}
.nav-card:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}
.nav-card.active{
  background:rgba(255,107,44,.16);
  color:#fff;
  border-color:rgba(255,107,44,.4);
  box-shadow:inset 3px 0 0 var(--orange);
}
.nav-cta{flex:0 0 auto;margin-left:auto;}

/* ---------- Buttons / Badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 22px;border-radius:var(--radius-sm);
  font-size:15.5px;font-weight:700;cursor:pointer;
  border:1px solid transparent;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn i{font-size:13px;transition:transform .22s ease;}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 10px 24px rgba(255,107,44,.26);}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-1px);box-shadow:0 16px 32px rgba(255,107,44,.32);}
.btn-primary:hover i{transform:translateX(3px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.38);}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-1px);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-outline:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-1px);}
.btn-sm{padding:10px 16px;font-size:14px;border-radius:10px;}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:13px;font-weight:600;
}
.badge-solid{background:#EFEDE6;border-color:var(--line);color:var(--ink);}
.badge-green{background:rgba(24,182,106,.12);border-color:rgba(24,182,106,.3);color:#0E7C48;}
.badge-orange{background:rgba(255,107,44,.12);border-color:rgba(255,107,44,.3);color:var(--orange-dark);}
.text-link{
  display:inline-flex;align-items:center;gap:7px;
  font-weight:700;font-size:15px;color:var(--ink);position:relative;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;
  background:var(--green);transition:width .26s ease;
}
.text-link:hover::after{width:100%;}
.text-link i{font-size:12px;transition:transform .22s ease;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:13.5px;color:rgba(255,255,255,.7);margin-bottom:18px;
}
.breadcrumb a{color:rgba(255,255,255,.78);transition:color .2s ease;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--orange);font-weight:700;}

/* ---------- Hero ---------- */
.page-hero{padding:34px 0 0;}
.hero-card{
  position:relative;overflow:hidden;border-radius:24px;
  background:var(--panel);
  box-shadow:var(--shadow-lg);
}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4;z-index:0;}
.hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(102deg,rgba(15,18,20,.95) 0%,rgba(15,18,20,.82) 46%,rgba(15,18,20,.42) 100%);
}
.hero-content{position:relative;z-index:2;padding:56px 48px;}
.hero-copy h1{color:#fff;}
.hero-copy h1 span{color:var(--orange);}
.hero-sub{
  margin-top:18px;max-width:620px;
  color:rgba(255,255,255,.82);font-size:17px;line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-side{display:flex;align-items:center;}
.hint-card{
  width:100%;background:var(--surface);border-radius:var(--radius-md);
  padding:24px;box-shadow:var(--shadow-lg);
  border:1px solid rgba(255,255,255,.6);
}
.hint-card h4{font-size:16px;margin-bottom:14px;}
.hint-card ul{display:grid;gap:12px;}
.hint-card li{display:flex;gap:11px;font-size:14.8px;color:var(--muted);line-height:1.65;}
.hint-card li i{color:var(--green);margin-top:5px;font-size:13px;}
.hint-card .hint-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);}

/* ---------- Metrics ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;
}
.metric{background:var(--surface);padding:24px 26px;}
.metric .num{
  font-family:"DIN Alternate","Arial Narrow",Arial,sans-serif;
  font-size:32px;font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.1;
}
.metric .num em{font-style:normal;color:var(--orange);}
.metric .lbl{margin-top:6px;font-size:14px;color:var(--muted);}

/* ---------- Timeline ---------- */
.tl-layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:38px;align-items:start;}
.timeline{position:relative;}
.tl-item{display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:27px;top:62px;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--line),rgba(227,224,216,.3));
}
.tl-item:last-child::before{display:none;}
.tl-marker{
  position:relative;z-index:1;width:56px;height:56px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--line);
  color:var(--orange);font-weight:800;font-size:18px;
  font-family:"DIN Alternate","Arial Narrow",Arial,sans-serif;
  box-shadow:var(--shadow-sm);
  transition:background .24s ease,color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.tl-item:hover .tl-marker{background:var(--ink);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow);}
.tl-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px 26px;box-shadow:var(--shadow-sm);
  transition:transform .26s ease,box-shadow .26s ease;
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.tl-body h3{margin-bottom:9px;}
.tl-body > p{color:var(--muted);font-size:15.8px;}
.tl-list{margin-top:13px;display:grid;gap:8px;}
.tl-list li{
  position:relative;padding-left:18px;font-size:15px;color:var(--muted);
}
.tl-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--green);
}
.tl-note{
  margin-top:14px;padding:11px 14px;border-radius:10px;
  background:rgba(24,182,106,.08);border:1px solid rgba(24,182,106,.22);
  font-size:14.4px;color:#0E7C48;
}
.tl-note.warn{background:rgba(255,107,44,.08);border-color:rgba(255,107,44,.24);color:var(--orange-dark);}

/* ---------- Aside ---------- */
.aside-stack{position:sticky;top:104px;display:grid;gap:18px;}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px 22px 20px;box-shadow:var(--shadow-sm);
}
.aside-card h4{font-size:16px;margin-bottom:12px;}
.aside-card p{font-size:14.6px;color:var(--muted);}
.aside-card.dark{background:var(--panel);border-color:rgba(255,255,255,.12);}
.aside-card.dark h4{color:#fff;}
.aside-card.dark p{color:rgba(255,255,255,.72);}
.aside-list{display:grid;gap:4px;margin-top:6px;}
.aside-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:10px;font-size:14.8px;color:var(--text);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.aside-list a i{font-size:12px;color:var(--muted);transition:transform .2s ease,color .2s ease;}
.aside-list a:hover{background:#F1EFE9;transform:translateX(2px);}
.aside-list a:hover i{color:var(--orange);transform:translateX(3px);}
.aside-progress{margin-top:14px;}
.aside-progress .bar{height:8px;border-radius:999px;background:rgba(255,255,255,.14);overflow:hidden;}
.aside-progress .bar span{display:block;height:100%;width:100%;background:linear-gradient(90deg,var(--green),var(--orange));}
.aside-progress small{display:block;margin-top:9px;color:rgba(255,255,255,.6);font-size:13px;}

/* ---------- Split ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:46px;align-items:center;}
.split-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow);aspect-ratio:4/3;background:#E7E4DC;
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.split-media:hover img{transform:scale(1.03);}
.split-media .tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(15,18,20,.82);color:#fff;
  padding:8px 14px;border-radius:999px;font-size:13px;font-weight:600;
}
.split-copy .list-num{display:grid;gap:22px;margin-top:26px;}
.split-copy .list-num li{display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;}
.split-copy .list-num .idx{
  font-family:"DIN Alternate","Arial Narrow",Arial,sans-serif;
  font-size:16px;font-weight:800;color:var(--orange);padding-top:3px;
}
.split-copy .list-num h3{font-size:18px;margin-bottom:6px;}
.split-copy .list-num p{font-size:15.4px;color:var(--muted);}

/* ---------- Notice band ---------- */
.notice-band{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px 36px;box-shadow:var(--shadow-sm);}
.notice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;margin-top:24px;}
.notice-item{display:grid;gap:9px;padding-left:16px;border-left:3px solid var(--line);}
.notice-item.warn{border-left-color:var(--orange);}
.notice-item.ok{border-left-color:var(--green);}
.notice-item strong{font-size:16px;color:var(--ink);}
.notice-item span{font-size:14.6px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{border-bottom:1px solid var(--line);}
.faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 8px;font-size:17.5px;font-weight:700;color:var(--ink);
  transition:background .2s ease;
}
.faq-q:hover{background:#F1EFE9;}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--orange);font-size:13px;
  transition:transform .28s ease,background .28s ease,color .28s ease,border-color .28s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(135deg);background:var(--orange);color:#fff;border-color:var(--orange);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a-inner{max-width:760px;padding:0 8px 24px;color:var(--muted);font-size:15.8px;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;
  background:var(--ink);padding:52px 48px;
  display:grid;grid-template-columns:7fr 5fr;gap:34px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-70px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,44,.34),rgba(255,107,44,0) 68%);
}
.cta-band h2{color:#fff;position:relative;z-index:1;}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.76);font-size:16px;max-width:640px;position:relative;z-index:1;}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:var(--section-space);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:700;font-size:16px;margin-bottom:16px;}
.footer-col p{font-size:14.6px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col li a{font-size:14.6px;color:rgba(255,255,255,.68);transition:color .2s ease,padding-left .2s ease;}
.footer-col li a:hover{color:var(--green);padding-left:4px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.4px;color:rgba(255,255,255,.52);
}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .nav-panel{flex-wrap:wrap;gap:12px;}
  .nav-cards{order:3;width:100%;overflow-x:auto;padding-bottom:2px;-webkit-overflow-scrolling:touch;}
  .nav-card{flex:0 0 auto;}
  .nav-cta{margin-left:auto;}
  .tl-layout{grid-template-columns:minmax(0,1fr);}
  .aside-stack{position:static;}
  .split{grid-template-columns:1fr;gap:30px;}
  .notice-grid{grid-template-columns:1fr;gap:18px;}
  .cta-band{grid-template-columns:1fr;padding:42px 32px;}
  .cta-actions{justify-content:flex-start;}
}
@media (max-width:900px){
  :root{--section-space:64px;}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .hero-content{padding:44px 30px;}
}
@media (max-width:640px){
  :root{--section-space:52px;}
  body{font-size:16px;}
  .container{padding:0 16px;}
  .nav-panel{padding:12px 14px;border-radius:14px;}
  .brand-text{font-size:15px;}
  .nav-cta{padding:9px 14px;font-size:13.5px;}
  .hero-content{padding:34px 20px;}
  .hero-actions .btn{width:100%;}
  .metrics{grid-template-columns:1fr;}
  .tl-item{grid-template-columns:44px minmax(0,1fr);gap:14px;}
  .tl-marker{width:44px;height:44px;border-radius:13px;font-size:15px;}
  .tl-item::before{left:21px;top:50px;}
  .tl-body{padding:18px 18px;}
  .split-copy .list-num li{grid-template-columns:36px minmax(0,1fr);gap:12px;}
  .notice-band{padding:24px 20px;}
  .cta-band{padding:32px 20px;border-radius:18px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .faq-q{font-size:16px;padding:18px 4px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink:#0F1214;
  --ink-2:#14181A;
  --green:#18B66A;
  --green-dark:#12904F;
  --orange:#FF6B2C;
  --orange-dark:#E85A1E;
  --bg:#F5F3EE;
  --surface:#FFFFFF;
  --line:#E3E0D8;
  --text:#262A2D;
  --muted:#6A6F73;
  --radius-card:16px;
  --radius-btn:11px;
  --radius-pill:999px;
  --shadow-sm:0 4px 14px rgba(15,18,20,.06);
  --shadow-md:0 12px 30px rgba(15,18,20,.08);
  --shadow-lg:0 20px 48px rgba(15,18,20,.14);
  --section-gap:96px;
  --container:1240px;
  --font-cn:"MiSans","HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"DIN Alternate","Arial Narrow","HarmonyOS Sans SC",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--green-dark);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-0.02em;color:var(--ink);}
p{margin:0;}
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:4px;}
::selection{background:rgba(24,182,106,.22);}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.container-wide{max-width:1280px;}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:16px 0 12px;
  background:linear-gradient(180deg,rgba(245,243,238,.96) 62%,rgba(245,243,238,.72) 100%);
  backdrop-filter:blur(10px);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:18px;
  background:var(--ink-2);
  border:1px solid rgba(255,255,255,.10);
  border-radius:16px;
  padding:14px 18px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 14px 34px rgba(15,18,20,.16);
}
.brand{
  display:flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
  color:#fff;
}
.brand:hover{color:#fff;}
.brand-mark{
  width:40px;
  height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--orange),#FF9A5C);
  color:#fff;
  font-family:var(--font-num);
  font-weight:800;
  font-size:16px;
  letter-spacing:.04em;
  box-shadow:0 8px 18px rgba(255,107,44,.32);
}
.brand-text{
  font-size:17px;
  font-weight:800;
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.nav-cards{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nav-cards::-webkit-scrollbar{display:none;}
.nav-card{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 14px;
  border-radius:11px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  border-left:3px solid transparent;
  color:rgba(255,255,255,.78);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.nav-card i{font-size:13px;opacity:.85;}
.nav-card:hover{
  background:rgba(255,255,255,.10);
  color:#fff;
  transform:translateY(-1px);
}
.nav-card.active{
  background:rgba(255,107,44,.14);
  border-left-color:var(--orange);
  color:#fff;
}
.nav-card.active i{color:var(--orange);opacity:1;}
.nav-cta{flex:0 0 auto;}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .24s ease,color .24s ease,transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  white-space:nowrap;
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-primary{
  background:var(--orange);
  color:#fff;
  box-shadow:0 10px 22px rgba(255,107,44,.26);
}
.btn-primary:hover{
  background:var(--orange-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 14px 28px rgba(255,107,44,.34);
}
.btn-ghost{
  background:transparent;
  color:var(--ink);
  border-color:rgba(15,18,20,.22);
}
.btn-ghost:hover{
  background:var(--ink);
  color:#fff;
  border-color:var(--ink);
  transform:translateY(-1px);
}
.btn-outline-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.34);
}
.btn-outline-light:hover{
  background:#fff;
  color:var(--ink);
  border-color:#fff;
  transform:translateY(-1px);
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  font-size:15px;
  color:var(--ink);
  position:relative;
  padding-bottom:2px;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--green);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .26s ease;
}
.text-link:hover{color:var(--ink);}
.text-link:hover::after{transform:scaleX(1);}
.text-link i{transition:transform .24s ease;}
.text-link:hover i{transform:translateX(4px);}

/* ============ BREADCRUMB ============ */
.crumb-bar{padding:8px 0 0;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.01em;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--green-dark);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--orange);font-weight:700;}

/* ============ HERO (SMALL) ============ */
.page-hero{
  position:relative;
  margin-top:22px;
  border-radius:22px;
  overflow:hidden;
  background:var(--ink);
  color:#fff;
  padding:56px 52px 52px;
  box-shadow:var(--shadow-md);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  opacity:.30;
  filter:saturate(.85);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(15,18,20,.94) 0%,rgba(15,18,20,.80) 46%,rgba(15,18,20,.42) 100%);
}
.page-hero-inner{position:relative;z-index:2;max-width:760px;}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  color:#fff;
  margin-bottom:20px;
}
.hero-badge i{color:var(--green);}
.page-hero h1{
  color:#fff;
  font-size:clamp(30px,3.6vw,46px);
  font-weight:800;
  letter-spacing:-0.02em;
  line-height:1.2;
}
.page-hero p{
  margin-top:18px;
  font-size:16.5px;
  line-height:1.85;
  color:rgba(255,255,255,.82);
  max-width:620px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.meta-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(255,255,255,.88);
  font-weight:600;
}
.meta-pill i{color:var(--orange);font-size:12px;}

/* ============ SECTION BASE ============ */
.section{padding:var(--section-gap) 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:800;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--green-dark);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  background:var(--green);
  display:inline-block;
}
.section-head h2{font-size:clamp(24px,2.7vw,36px);}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px;line-height:1.85;}

/* ============ SPLIT LAYOUT ============ */
.split-layout{
  display:grid;
  grid-template-columns:300px minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.side-sticky{
  position:sticky;
  top:112px;
  display:flex;
  flex-direction:column;
  gap:18px;
}
.toc-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 22px;
  box-shadow:var(--shadow-sm);
}
.toc-card h3{
  font-size:15px;
  font-weight:800;
  letter-spacing:.02em;
  margin-bottom:16px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  gap:9px;
}
.toc-card h3 i{color:var(--orange);font-size:14px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:10px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--muted);
  font-weight:600;
  line-height:1.5;
  transition:background .2s ease,color .2s ease;
}
.toc-list a .idx{
  font-family:var(--font-num);
  font-size:12px;
  color:var(--orange);
  font-weight:800;
  padding-top:2px;
  min-width:18px;
}
.toc-list a:hover{
  background:#F1EEE7;
  color:var(--ink);
}
.notice-card{
  background:var(--ink-2);
  color:rgba(255,255,255,.84);
  border-radius:var(--radius-card);
  padding:22px;
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--shadow-md);
}
.notice-card .nc-title{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:14px;
  font-weight:800;
  color:#fff;
  letter-spacing:.02em;
  margin-bottom:12px;
}
.notice-card .nc-title i{color:var(--orange);}
.notice-card p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.74);}
.notice-card .nc-list{margin-top:14px;display:flex;flex-direction:column;gap:9px;}
.notice-card .nc-list li{
  display:flex;
  gap:9px;
  font-size:13.5px;
  color:rgba(255,255,255,.80);
  line-height:1.65;
}
.notice-card .nc-list i{color:var(--green);font-size:12px;padding-top:5px;}

/* ============ CONTENT CARDS ============ */
.card-stack{display:flex;flex-direction:column;gap:22px;}
.content-card{
  display:grid;
  grid-template-columns:236px minmax(0,1fr);
  gap:26px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  scroll-margin-top:110px;
}
.content-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  border-color:#D6D2C7;
}
.cc-media{
  position:relative;
  overflow:hidden;
  background:#E9E5DC;
  min-height:100%;
}
.cc-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  aspect-ratio:4/3;
  transition:transform .4s ease;
}
.content-card:hover .cc-media img{transform:scale(1.03);}
.cc-body{padding:26px 28px 26px 0;display:flex;flex-direction:column;gap:12px;}
.cc-tags{display:flex;flex-wrap:wrap;gap:8px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  font-size:12.5px;
  font-weight:700;
  background:#EFEBE2;
  color:#4A4F52;
  letter-spacing:.01em;
}
.badge-green{background:rgba(24,182,106,.12);color:var(--green-dark);}
.badge-orange{background:rgba(255,107,44,.13);color:#C24A16;}
.cc-body h3{font-size:20px;line-height:1.4;}
.cc-body p{font-size:15.5px;line-height:1.82;color:var(--muted);}
.cc-points{display:flex;flex-direction:column;gap:8px;margin-top:2px;}
.cc-points li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:#41474A;
  line-height:1.7;
}
.cc-points li i{color:var(--green);font-size:12px;padding-top:6px;flex:0 0 auto;}
.cc-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px dashed var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
}
.cc-foot .note{font-size:13px;color:var(--muted);display:inline-flex;align-items:center;gap:7px;}
.cc-foot .note i{color:var(--orange);}

/* ============ DARK METRIC BAND ============ */
.metric-band{
  background:var(--ink);
  color:#fff;
  border-radius:24px;
  padding:54px 48px;
  position:relative;
  overflow:hidden;
  box-shadow:var(--shadow-md);
}
.metric-band::before{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(24,182,106,.24),transparent 68%);
}
.metric-head{position:relative;z-index:2;max-width:640px;margin-bottom:38px;}
.metric-head span{
  font-size:13px;
  font-weight:800;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--orange);
}
.metric-head h2{color:#fff;font-size:clamp(23px,2.5vw,32px);margin-top:12px;}
.metric-head p{margin-top:14px;color:rgba(255,255,255,.72);font-size:15.5px;line-height:1.85;}
.metric-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.metric-item{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  border-radius:14px;
  padding:24px 20px;
  transition:background .24s ease,transform .24s ease;
}
.metric-item:hover{background:rgba(255,255,255,.09);transform:translateY(-3px);}
.metric-item .num{
  font-family:var(--font-num);
  font-size:38px;
  font-weight:800;
  letter-spacing:-0.02em;
  color:#fff;
  line-height:1.05;
}
.metric-item .num em{
  font-style:normal;
  font-size:16px;
  color:var(--green);
  margin-left:4px;
  font-weight:700;
}
.metric-item .lbl{
  margin-top:10px;
  font-size:13.5px;
  color:rgba(255,255,255,.68);
  line-height:1.65;
}

/* ============ STEP RAIL ============ */
.rail{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border-top:2px solid var(--line);
  margin-top:8px;
}
.rail-item{
  position:relative;
  padding:30px 22px 0 0;
}
.rail-item::before{
  content:"";
  position:absolute;
  top:-9px;left:0;
  width:16px;height:16px;
  border-radius:50%;
  background:var(--surface);
  border:2px solid var(--orange);
  box-shadow:0 0 0 4px rgba(255,107,44,.12);
}
.rail-item .step-no{
  font-family:var(--font-num);
  font-size:13px;
  font-weight:800;
  color:var(--orange);
  letter-spacing:.08em;
}
.rail-item h3{font-size:18px;margin-top:10px;}
.rail-item p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.78;}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:20px;
  padding:22px 14px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  cursor:pointer;
  transition:background .22s ease,color .22s ease;
  border-radius:10px;
}
.faq-q:hover{background:#F1EEE7;}
.faq-q .qt{flex:1;}
.faq-q .plus{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--orange);
  font-size:13px;
  transition:transform .28s ease,background .24s ease,color .24s ease;
  margin-top:2px;
}
.faq-item.open .faq-q{background:#F1EEE7;}
.faq-item.open .faq-q .plus{
  background:var(--orange);
  color:#fff;
  border-color:var(--orange);
  transform:rotate(135deg);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .34s ease;
}
.faq-a-inner{
  max-width:760px;
  padding:0 14px 24px;
  font-size:15.5px;
  line-height:1.9;
  color:var(--muted);
}

/* ============ CTA BAND ============ */
.cta-band{
  background:linear-gradient(112deg,#14181A 0%,#1C2320 62%,#123322 100%);
  border-radius:24px;
  padding:46px 48px;
  color:#fff;
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:36px;
  align-items:center;
  box-shadow:var(--shadow-md);
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-80px;bottom:-140px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,44,.22),transparent 70%);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);position:relative;z-index:2;}
.cta-band p{
  margin-top:14px;
  color:rgba(255,255,255,.76);
  font-size:15.5px;
  line-height:1.85;
  position:relative;
  z-index:2;
}
.cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:flex-end;
}

/* ============ FOOTER ============ */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.76);
  margin-top:var(--section-gap);
  padding:64px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:11px;
  color:#fff;
  font-size:17px;
  font-weight:800;
  margin-bottom:18px;
}
.footer-col p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:360px;}
.footer-col h4{
  color:#fff;
  font-size:14.5px;
  letter-spacing:.06em;
  margin-bottom:16px;
  font-weight:800;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{
  font-size:14.5px;
  color:rgba(255,255,255,.68);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-col ul a:hover{color:var(--green);padding-left:4px;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.48);
}

/* ============ RESPONSIVE ============ */
@media screen and (max-width:1200px){
  .split-layout{grid-template-columns:262px minmax(0,1fr);gap:30px;}
  .content-card{grid-template-columns:200px minmax(0,1fr);}
  .cc-body{padding:24px 24px 24px 0;}
}
@media screen and (max-width:1024px){
  :root{--section-gap:72px;}
  .nav-panel{flex-wrap:wrap;gap:14px;}
  .nav-cards{
    order:3;
    width:100%;
    margin-left:0;
    padding-top:12px;
    border-top:1px solid rgba(255,255,255,.10);
  }
  .nav-cta{margin-left:auto;}
  .split-layout{grid-template-columns:1fr;gap:32px;}
  .side-sticky{position:static;}
  .toc-list{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:4px 12px;
  }
  .page-hero{padding:46px 34px 42px;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rail{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:34px;}
  .cta-band{grid-template-columns:1fr;padding:40px 34px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
}
@media screen and (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .content-card{grid-template-columns:1fr;}
  .cc-media{min-height:0;}
  .cc-media img{aspect-ratio:16/9;}
  .cc-body{padding:22px 20px 24px;}
  .metric-band{padding:38px 24px;}
  .metric-head{margin-bottom:28px;}
}
@media screen and (max-width:520px){
  :root{--section-gap:52px;}
  .site-header{padding:10px 0 8px;}
  .nav-panel{padding:12px 13px;border-radius:14px;}
  .brand-text{font-size:15px;}
  .brand-mark{width:34px;height:34px;font-size:14px;border-radius:10px;}
  .nav-cta{width:100%;order:4;justify-content:center;}
  .page-hero{padding:34px 20px 32px;border-radius:18px;}
  .page-hero h1{font-size:26px;}
  .page-hero p{font-size:15px;}
  .hero-meta{gap:8px;}
  .meta-pill{font-size:12.5px;padding:7px 11px;}
  .toc-list{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:1fr;}
  .rail{grid-template-columns:1fr;}
  .faq-q{font-size:15.5px;padding:18px 6px;}
  .faq-a-inner{padding:0 6px 20px;}
  .cta-band{padding:30px 20px;border-radius:18px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

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

/* roulang page: category3 */
:root{
  --ink:#0F1214;
  --panel:#14181A;
  --panel-2:#1C2225;
  --green:#18B66A;
  --orange:#FF6B2C;
  --orange-dark:#E85A1E;
  --bg:#F5F3EE;
  --surface:#FFFFFF;
  --line:#E3E0D8;
  --text:#262A2D;
  --muted:#6A6F73;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:11px;
  --shadow:0 12px 30px rgba(15,18,20,.08);
  --shadow-hover:0 20px 44px rgba(15,18,20,.14);
  --section-y:92px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"MiSans","HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
.container-wide{max-width:1240px}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:14px 0 10px;
  background:rgba(245,243,238,.94);
  backdrop-filter:blur(10px);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:18px;
  background:var(--panel);
  border:1px solid rgba(255,255,255,.12);
  border-radius:16px;
  padding:12px 18px;
  box-shadow:0 18px 40px rgba(15,18,20,.22), inset 0 1px 0 rgba(255,255,255,.06);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--orange);
  color:#14181A;
  display:grid;place-items:center;
  font-weight:800;font-size:15px;letter-spacing:.04em;
}
.brand-text{color:#fff;font-weight:700;font-size:16px;white-space:nowrap;letter-spacing:.01em}
.nav-cards{
  display:flex;align-items:center;gap:8px;
  flex:1 1 auto;min-width:0;
  overflow-x:auto;
  scrollbar-width:none;
  padding-bottom:2px;
}
.nav-cards::-webkit-scrollbar{display:none}
.nav-card{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;
  border-radius:11px;
  border:1px solid transparent;
  background:rgba(255,255,255,.05);
  color:rgba(255,255,255,.74);
  font-size:14px;white-space:nowrap;
  transition:background .22s ease,color .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.nav-card i{font-size:13px;color:var(--orange)}
.nav-card:hover{color:#fff;background:rgba(255,255,255,.11)}
.nav-card.active{
  color:#fff;
  background:rgba(255,107,44,.14);
  border-color:rgba(255,107,44,.42);
  box-shadow:inset 3px 0 0 var(--orange);
}
.nav-cta{flex-shrink:0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 22px;
  border-radius:11px;
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn i{font-size:13px;transition:transform .22s ease}
.btn-primary{background:var(--orange);color:#14181A}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px rgba(255,107,44,.32)}
.btn-primary:hover i{transform:translateX(4px)}
.btn-ghost{background:transparent;border-color:rgba(15,18,20,.2);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-sm{padding:10px 16px;font-size:14px}
.btn-block{width:100%;justify-content:center}

/* ---------- breadcrumb ---------- */
.breadcrumb{padding:8px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(106,111,115,.5)}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--green)}
.breadcrumb .current{color:var(--orange);font-weight:600}

/* ---------- hero ---------- */
.page-hero{padding:52px 0 60px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(24,182,106,.12);
  border:1px solid rgba(24,182,106,.32);
  color:#0E7C48;
  font-size:13px;font-weight:600;
  letter-spacing:.02em;
}
.eyebrow i{color:var(--green)}
h1{
  font-size:clamp(34px,4.4vw,58px);
  line-height:1.1;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
  margin:20px 0 18px;
}
.lede{font-size:17.5px;line-height:1.85;color:var(--muted);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-figure{position:relative;border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(15,18,20,.42),rgba(15,18,20,.05) 60%);
}
.hero-badge{
  position:absolute;left:20px;bottom:20px;z-index:2;
  background:rgba(20,24,26,.86);
  border:1px solid rgba(255,255,255,.14);
  color:#F1EFE9;
  border-radius:12px;
  padding:10px 16px;
  font-size:13.5px;
  display:flex;align-items:center;gap:10px;
  backdrop-filter:blur(6px);
}
.hero-badge b{color:var(--orange);font-size:18px;font-weight:800;font-family:"DIN Alternate","Arial Narrow",Arial,sans-serif}

/* ---------- section shell ---------- */
.section{padding:var(--section-y) 0}
.section-tight{padding:56px 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(26px,3vw,38px);
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.015em;
  color:var(--ink);
  margin-bottom:14px;
}
.section-head p{color:var(--muted);font-size:16.5px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--orange);text-transform:uppercase;
  margin-bottom:14px;
}

/* ---------- matrix cards ---------- */
.matrix-top{display:grid;grid-template-columns:1.55fr 1fr;gap:22px;margin-bottom:22px}
.matrix-side{display:grid;grid-template-rows:1fr 1fr;gap:22px}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D8D4C9}
.card-media{overflow:hidden;background:#E9E6DF}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-hero .card-media img{aspect-ratio:16/9}
.card-sm .card-media img{aspect-ratio:16/7}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-badges{display:flex;flex-wrap:wrap;gap:8px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;
  border-radius:999px;
  background:rgba(15,18,20,.05);
  color:#4C5256;
  font-size:12.5px;font-weight:600;
}
.badge-green{background:rgba(24,182,106,.13);color:#0E7C48}
.badge-orange{background:rgba(255,107,44,.14);color:#C24B15}
.card h3{font-size:21px;line-height:1.35;font-weight:700;color:var(--ink)}
.card-hero h3{font-size:26px}
.card p{color:var(--muted);font-size:15.5px;line-height:1.8}
.check-list{display:flex;flex-direction:column;gap:9px;margin-top:4px}
.check-list li{display:flex;gap:10px;font-size:15px;color:#3C4245;line-height:1.7}
.check-list i{color:var(--green);font-size:13px;margin-top:7px;flex-shrink:0}
.card-link{
  margin-top:auto;
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;color:var(--ink);
  padding-top:14px;
}
.card-link i{color:var(--orange);font-size:12px;transition:transform .22s ease}
.card:hover .card-link i{transform:translateX(4px)}
.card-link:hover{text-decoration:underline;text-decoration-color:var(--green);text-underline-offset:4px}

.matrix-bottom{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card-mini{padding:24px 22px}
.card-mini .mini-icon{
  width:44px;height:44px;border-radius:13px;
  display:grid;place-items:center;
  background:rgba(15,18,20,.05);
  color:var(--orange);
  font-size:17px;
  margin-bottom:16px;
  transition:background .24s ease,color .24s ease;
}
.card-mini:hover .mini-icon{background:var(--orange);color:#14181A}
.card-mini h3{font-size:18px;margin-bottom:8px}
.card-mini p{font-size:14.5px}

/* ---------- notice bar ---------- */
.notice{
  display:grid;grid-template-columns:auto 1fr auto;
  align-items:center;gap:22px;
  background:var(--panel);
  color:#E9E6DF;
  border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.1);
  border-left:4px solid var(--orange);
  padding:24px 28px;
  box-shadow:0 18px 40px rgba(15,18,20,.18);
}
.notice-icon{
  width:48px;height:48px;border-radius:14px;
  display:grid;place-items:center;
  background:rgba(255,107,44,.15);
  color:var(--orange);font-size:19px;
}
.notice h3{font-size:18px;color:#fff;margin-bottom:6px}
.notice p{font-size:14.8px;color:rgba(233,230,223,.76);line-height:1.75}
.notice .btn{white-space:nowrap}

/* ---------- flow timeline ---------- */
.flow-wrap{display:grid;grid-template-columns:1.5fr 1fr;gap:48px;align-items:start}
.flow-list{display:flex;flex-direction:column}
.flow-item{
  display:grid;grid-template-columns:88px 1fr;
  gap:22px;
  padding:26px 0;
  border-top:1px solid var(--line);
  transition:background .24s ease;
}
.flow-item:last-child{border-bottom:1px solid var(--line)}
.flow-item:hover{background:rgba(255,255,255,.7)}
.flow-num{
  font-family:"DIN Alternate","Arial Narrow",Arial,sans-serif;
  font-size:32px;font-weight:800;letter-spacing:-.03em;
  color:rgba(15,18,20,.16);
  line-height:1;
  padding-top:4px;
}
.flow-item:hover .flow-num{color:var(--orange)}
.flow-item h3{font-size:19px;margin-bottom:8px;color:var(--ink)}
.flow-item p{font-size:15.4px;color:var(--muted);line-height:1.8}
.flow-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

.side-panel{
  position:sticky;top:104px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px 26px;
  box-shadow:var(--shadow);
}
.side-panel h3{font-size:19px;margin-bottom:16px;color:var(--ink)}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list li{display:flex;gap:12px;font-size:14.8px;color:#3C4245;line-height:1.7}
.side-list i{color:var(--green);font-size:13px;margin-top:7px;flex-shrink:0}
.side-panel .btn{margin-top:22px}
.side-note{
  margin-top:18px;padding-top:18px;border-top:1px dashed var(--line);
  font-size:13.4px;color:var(--muted);line-height:1.7;
}

/* ---------- dark band ---------- */
.dark-band{
  background:linear-gradient(160deg,#14181A 0%,#1B2124 60%,#121618 100%);
  border-radius:26px;
  padding:56px 48px;
  color:#F1EFE9;
  position:relative;
  overflow:hidden;
}
.dark-band::before{
  content:"";
  position:absolute;right:-120px;top:-140px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(24,182,106,.22),transparent 68%);
}
.dark-band::after{
  content:"";
  position:absolute;left:-100px;bottom:-160px;
  width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,44,.18),transparent 70%);
}
.dark-inner{position:relative;z-index:2}
.dark-band h2{font-size:clamp(24px,2.8vw,34px);font-weight:800;letter-spacing:-.015em;margin-bottom:14px;line-height:1.2}
.dark-band .dark-lede{color:rgba(241,239,233,.74);max-width:640px;font-size:16px}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px}
.stat-card{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.11);
  border-radius:var(--r-md);
  padding:22px 20px;
  transition:background .24s ease,transform .24s ease,border-color .24s ease;
}
.stat-card:hover{background:rgba(255,255,255,.09);transform:translateY(-3px);border-color:rgba(255,107,44,.4)}
.stat-num{
  font-family:"DIN Alternate","Arial Narrow",Arial,sans-serif;
  font-size:38px;font-weight:800;letter-spacing:-.03em;
  color:var(--orange);line-height:1;
  display:flex;align-items:baseline;gap:6px;
}
.stat-num span{font-size:15px;color:rgba(241,239,233,.66);font-weight:600;font-family:inherit}
.stat-card h3{font-size:15.5px;color:#fff;margin:14px 0 8px}
.stat-card p{font-size:13.8px;color:rgba(241,239,233,.68);line-height:1.7}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:1fr 360px;gap:48px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;justify-content:space-between;align-items:flex-start;gap:20px;
  padding:24px 6px;
  font-size:18px;font-weight:600;color:var(--ink);
  transition:background .22s ease,padding-left .22s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(255,255,255,.7);padding-left:14px}
.faq-item summary::after{
  content:"+";
  font-size:24px;line-height:1;font-weight:400;
  color:var(--orange);
  transition:transform .28s ease;
  flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{
  max-width:760px;
  padding:0 6px 26px;
  color:var(--muted);
  font-size:15.6px;
  line-height:1.85;
}
.faq-side{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px 26px;
  box-shadow:var(--shadow);
}
.faq-side h3{font-size:19px;margin-bottom:12px;color:var(--ink)}
.faq-side p{font-size:14.8px;color:var(--muted);line-height:1.8}
.faq-side .btn{margin-top:20px}
.faq-side .btn+.btn{margin-top:12px}

/* ---------- subscribe ---------- */
.subscribe{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:24px;
  padding:52px 48px;
  display:grid;grid-template-columns:1.05fr 1fr;gap:56px;
  align-items:center;
  box-shadow:var(--shadow);
}
.subscribe h2{font-size:clamp(24px,2.7vw,34px);font-weight:800;letter-spacing:-.015em;line-height:1.2;margin-bottom:14px;color:var(--ink)}
.subscribe .sub-lede{color:var(--muted);font-size:16px}
.sub-points{display:flex;flex-direction:column;gap:10px;margin-top:22px}
.sub-points li{display:flex;gap:10px;font-size:14.8px;color:#3C4245}
.sub-points i{color:var(--green);font-size:13px;margin-top:7px;flex-shrink:0}
.form-grid{display:grid;gap:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input{
  width:100%;height:48px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#FCFBF8;
  padding:0 14px;
  font-size:15px;color:var(--text);
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field input::placeholder{color:#9DA2A5}
.field input:focus{
  outline:none;
  border-color:var(--green);
  background:#fff;
  box-shadow:0 0 0 3px rgba(24,182,106,.14);
}
.field .hint{font-size:13px;color:var(--muted);margin-top:8px}
.form-error{display:none;font-size:13px;color:var(--orange);margin-top:8px}
.form-error.show{display:block}

/* ---------- footer ---------- */
.site-footer{
  margin-top:var(--section-y);
  background:var(--ink);
  color:rgba(241,239,233,.72);
  padding:66px 0 30px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand span:last-child{color:#fff;font-weight:700;font-size:16px}
.footer-col p{font-size:14.4px;line-height:1.85;color:rgba(241,239,233,.66);max-width:340px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li a{font-size:14.4px;color:rgba(241,239,233,.7);transition:color .22s ease,padding-left .22s ease}
.footer-col li a:hover{color:var(--green);padding-left:4px}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13.4px;color:rgba(241,239,233,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--section-y:72px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-figure{order:-1}
  .matrix-top{grid-template-columns:1fr}
  .matrix-side{grid-template-columns:1fr 1fr;grid-template-rows:none}
  .matrix-bottom{grid-template-columns:1fr 1fr}
  .flow-wrap{grid-template-columns:1fr;gap:36px}
  .side-panel{position:static}
  .stat-row{grid-template-columns:1fr 1fr}
  .faq-layout{grid-template-columns:1fr;gap:36px}
  .subscribe{grid-template-columns:1fr;gap:34px;padding:42px 34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .nav-panel{flex-wrap:wrap;gap:12px}
  .nav-cards{order:3;width:100%;flex-basis:100%}
  .nav-cta{margin-left:auto}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:56px 0}
  .page-hero{padding:36px 0 44px}
  .dark-band{padding:40px 26px;border-radius:20px}
  .notice{grid-template-columns:1fr;gap:16px;padding:22px}
  .notice .btn{width:100%;justify-content:center}
  .flow-item{grid-template-columns:60px 1fr;gap:16px;padding:22px 0}
  .flow-num{font-size:26px}
  .card-hero h3{font-size:22px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .nav-panel{padding:12px 14px;border-radius:14px}
  .brand-text{font-size:15px}
  .matrix-side{grid-template-columns:1fr}
  .matrix-bottom{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr}
  .subscribe{padding:32px 20px;border-radius:18px}
  .dark-band{padding:32px 20px}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%;justify-content:center}
  .faq-item summary{font-size:16.5px;padding:20px 4px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category4 */
:root{
  --ink:#0F1214;
  --panel:#14181A;
  --green:#18B66A;
  --green-soft:rgba(24,182,106,.12);
  --orange:#FF6B2C;
  --orange-dark:#E85A1E;
  --orange-soft:rgba(255,107,44,.12);
  --warm:#F5F3EE;
  --warm-2:#EDEAE3;
  --border:#E3E0D8;
  --text:#262A2D;
  --muted:#6A6F73;
  --white:#ffffff;
  --radius-card:16px;
  --radius-lg:18px;
  --radius-btn:11px;
  --shadow-sm:0 6px 18px rgba(15,18,20,.06);
  --shadow-md:0 12px 30px rgba(15,18,20,.08);
  --shadow-lg:0 22px 48px rgba(15,18,20,.14);
  --container:1220px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--warm);
  color:var(--text);
  font-family:"MiSans","HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.75;
  -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;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:6px;}
.is-hidden{display:none !important;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.container-wide{max-width:1280px;}
.section{padding:78px 0;}
.section-tight{padding:52px 0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--radius-btn);padding:14px 24px;font-size:15px;font-weight:700;
  line-height:1;border:1px solid transparent;white-space:nowrap;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.btn i{font-size:13px;}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 10px 24px rgba(255,107,44,.28);}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 16px 34px rgba(255,107,44,.36);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--border);}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--ink);border-color:var(--border);box-shadow:var(--shadow-sm);}
.btn-light:hover{border-color:var(--ink);transform:translateY(-1px);}
.btn-sm{padding:10px 16px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  padding:5px 12px;font-size:12.5px;font-weight:700;letter-spacing:.02em;
  background:var(--warm-2);color:var(--text);
}
.badge i{font-size:11px;}
.badge-orange{background:var(--orange-soft);color:#B5420F;}
.badge-green{background:var(--green-soft);color:#0E7A47;}
.badge-dark{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;padding:14px 0 8px;
  background:linear-gradient(180deg,rgba(245,243,238,.96),rgba(245,243,238,.62));
  backdrop-filter:blur(10px);
}
.nav-panel{
  display:flex;align-items:center;gap:16px;
  background:var(--panel);
  border:1px solid rgba(255,255,255,.09);
  border-radius:16px;
  padding:12px 16px;
  box-shadow:0 16px 38px rgba(15,18,20,.20),inset 0 1px 0 rgba(255,255,255,.06);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  display:grid;place-items:center;width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--orange),#FFA06A);
  color:#16191B;font-weight:800;font-size:14px;letter-spacing:.5px;
  font-family:"DIN Alternate","Arial Narrow",sans-serif;
}
.brand-text{color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap;}
.nav-cards{display:flex;align-items:center;gap:8px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;padding:2px;}
.nav-cards::-webkit-scrollbar{display:none;}
.nav-card{
  display:flex;align-items:center;gap:8px;
  padding:9px 13px;border-radius:10px;font-size:14px;
  color:rgba(255,255,255,.72);background:rgba(255,255,255,.05);
  border-left:3px solid transparent;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.nav-card i{font-size:13px;opacity:.85;}
.nav-card:hover{background:rgba(255,255,255,.12);color:#fff;}
.nav-card.active{border-left-color:var(--orange);background:rgba(255,107,44,.16);color:#fff;}
.nav-cta{flex:0 0 auto;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:22px 0 0;
}
.breadcrumb a{transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--green);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--orange);font-weight:700;}

/* ---------- 首屏 ---------- */
.page-hero{padding:26px 0 0;}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;align-items:center;padding:26px 0 42px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--orange);
  text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--orange);border-radius:2px;}
h1{
  font-size:clamp(34px,4.6vw,58px);
  font-weight:800;line-height:1.14;letter-spacing:-.02em;color:var(--ink);
  margin-bottom:20px;
}
.hero-lead{font-size:17.5px;color:var(--muted);max-width:640px;line-height:1.85;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
}
.hero-media::after{
  content:"";position:absolute;inset:auto -10px -14px auto;width:118px;height:118px;
  border-radius:20px;background:var(--green-soft);z-index:-1;
}

/* ---------- 搜索面板 ---------- */
.search-panel{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow-md);
}
.search-field{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.search-input-wrap{
  display:flex;align-items:center;gap:10px;flex:1 1 320px;
  border:1px solid var(--border);border-radius:12px;padding:0 16px;height:52px;
  background:var(--warm);transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.search-input-wrap:focus-within{border-color:var(--green);background:#fff;box-shadow:0 0 0 4px var(--green-soft);}
.search-input-wrap i{color:var(--muted);}
.search-input-wrap input{
  flex:1;border:0;background:transparent;height:100%;font-size:16px;color:var(--text);outline:none;
}
.search-input-wrap input::placeholder{color:#9AA0A4;}
.quick-tags{display:flex;align-items:center;flex-wrap:wrap;gap:9px;margin-top:16px;}
.quick-tags .label{font-size:13px;color:var(--muted);margin-right:2px;}
.chip{
  border-radius:999px;padding:6px 14px;font-size:13.5px;
  background:var(--warm-2);color:var(--text);border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.chip:hover{background:#fff;border-color:var(--border);transform:translateY(-1px);}
.chip.active{background:var(--orange);color:#fff;}

/* ---------- FAQ 布局 ---------- */
.help-grid{
  display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:44px;align-items:start;
}
.faq-group{margin-bottom:38px;}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.group-icon{
  display:grid;place-items:center;width:36px;height:36px;border-radius:11px;
  background:var(--ink);color:#fff;font-size:14px;flex:0 0 auto;
}
.group-head h2{font-size:21px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.group-count{font-size:13px;color:var(--muted);margin-left:auto;}

.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.faq-item:hover{border-color:#CFCBC0;box-shadow:var(--shadow-sm);}
.faq-item.open{border-color:var(--green);box-shadow:0 10px 26px rgba(24,182,106,.12);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:19px 22px;font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.5;
  transition:background .22s var(--ease);
}
.faq-q:hover{background:var(--warm);}
.faq-q span{flex:1;}
.faq-q i{
  flex:0 0 auto;width:28px;height:28px;display:grid;place-items:center;
  border-radius:50%;background:var(--warm-2);color:var(--ink);font-size:12px;
  transition:transform .28s var(--ease),background .28s var(--ease),color .28s var(--ease);
}
.faq-item.open .faq-q i{transform:rotate(45deg);background:var(--green);color:#fff;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s var(--ease);}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a > div{overflow:hidden;}
.faq-a .inner{padding:0 22px 22px;max-width:760px;}
.faq-a p{font-size:16px;line-height:1.9;color:#3A4044;}
.faq-a p + p{margin-top:12px;}
.faq-a .tip{
  display:flex;gap:10px;margin-top:14px;padding:12px 14px;
  background:var(--orange-soft);border-radius:10px;font-size:14.5px;color:#8A3B12;line-height:1.75;
}
.faq-a .tip i{margin-top:4px;color:var(--orange);}
.empty-state{
  text-align:center;padding:54px 24px;border:1px dashed var(--border);
  border-radius:var(--radius-lg);background:#fff;
}
.empty-state i{font-size:26px;color:var(--orange);}
.empty-state h3{margin:14px 0 8px;font-size:19px;color:var(--ink);}
.empty-state p{color:var(--muted);font-size:15px;}

/* ---------- 侧栏 ---------- */
.help-aside{position:sticky;top:104px;display:grid;gap:18px;}
.aside-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-sm);
}
.aside-card h2,.aside-card h3{font-size:20px;font-weight:800;color:var(--ink);letter-spacing:-.01em;margin:14px 0 10px;}
.aside-card p{font-size:15px;color:var(--muted);line-height:1.8;}
.aside-card img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;margin:16px 0;
}
.aside-list{display:grid;gap:11px;margin:6px 0 18px;}
.aside-list li{display:flex;gap:10px;font-size:14.5px;color:#3A4044;line-height:1.7;}
.aside-list i{color:var(--green);margin-top:4px;font-size:13px;}
.aside-card .btn + .btn{margin-top:10px;}
.aside-card-dark{background:var(--panel);border-color:rgba(255,255,255,.1);box-shadow:0 18px 40px rgba(15,18,20,.22);}
.aside-card-dark h3{color:#fff;}
.mini-steps{counter-reset:ms;display:grid;gap:12px;margin-top:14px;}
.mini-steps li{
  counter-increment:ms;display:flex;gap:11px;font-size:14.5px;
  color:rgba(255,255,255,.76);line-height:1.7;
}
.mini-steps li::before{
  content:counter(ms,decimal-leading-zero);
  font-family:"DIN Alternate","Arial Narrow",sans-serif;
  color:var(--orange);font-weight:700;font-size:13px;letter-spacing:.04em;
}

/* ---------- 数据带 ---------- */
.metrics{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;box-shadow:var(--shadow-sm);
}
.metric{padding:28px 26px;border-right:1px solid var(--border);}
.metric:last-child{border-right:0;}
.metric strong{
  display:block;font-size:clamp(28px,3vw,38px);font-weight:800;color:var(--ink);
  letter-spacing:-.02em;line-height:1.1;font-family:"DIN Alternate","Arial Narrow",sans-serif;
}
.metric strong em{font-style:normal;font-size:.55em;color:var(--green);margin-left:3px;}
.metric span{display:block;margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- 底部返回与相关入口 ---------- */
.back-panel{
  background:var(--ink);border-radius:var(--radius-lg);padding:40px;
  box-shadow:var(--shadow-lg);
}
.back-head{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px;}
.back-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;color:#fff;letter-spacing:-.01em;}
.back-head p{color:rgba(255,255,255,.62);font-size:14.5px;margin-top:8px;max-width:560px;line-height:1.8;}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.related-card{
  display:flex;flex-direction:column;gap:10px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  border-radius:14px;padding:20px;
  transition:background .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease);
}
.related-card:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.22);transform:translateY(-4px);}
.related-card i{color:var(--orange);font-size:16px;}
.related-card strong{color:#fff;font-size:15.5px;font-weight:700;line-height:1.5;}
.related-card span{color:rgba(255,255,255,.58);font-size:13.5px;line-height:1.7;}
.related-card .go{margin-top:auto;color:var(--green);font-size:13px;font-weight:700;display:inline-flex;align-items:center;gap:6px;transition:gap .24s var(--ease);}
.related-card:hover .go{gap:10px;}
.related-card.current{border-color:rgba(255,107,44,.5);background:rgba(255,107,44,.14);}

/* ---------- 订阅 ---------- */
.subscribe{
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:40px;align-items:center;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:38px;box-shadow:var(--shadow-sm);
}
.subscribe h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;color:var(--ink);letter-spacing:-.01em;margin-bottom:12px;}
.subscribe p{font-size:15.5px;color:var(--muted);line-height:1.85;}
.sub-form{display:grid;gap:14px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.field label{display:block;font-size:13.5px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.field input{
  width:100%;height:48px;border-radius:10px;border:1px solid var(--border);
  background:var(--warm);padding:0 15px;font-size:15px;color:var(--text);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.field input::placeholder{color:#9AA0A4;}
.field input:focus{outline:none;border-color:var(--green);background:#fff;box-shadow:0 0 0 4px var(--green-soft);}
.form-note{font-size:13px;color:var(--muted);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:66px 0 28px;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:16px;}
.footer-col p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:330px;}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin:0 0 16px;letter-spacing:.04em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.66);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--green);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:46px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.48);
}

/* ---------- 入场动效 ---------- */
@keyframes rise{from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:translateY(0);}}
.hero-grid > *{animation:rise .6s var(--ease) both;}
.hero-grid > *:nth-child(2){animation-delay:.1s;}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .nav-card span{font-size:13.5px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{order:-1;}
  .hero-media img{aspect-ratio:16/9;}
  .help-grid{grid-template-columns:1fr;gap:32px;}
  .help-aside{position:static;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric{border-bottom:1px solid var(--border);}
  .metric:nth-child(2n){border-right:0;}
  .metric:nth-last-child(-n+2){border-bottom:0;}
  .subscribe{grid-template-columns:1fr;gap:26px;padding:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .nav-cta{display:none;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .section{padding:54px 0;}
  .container{padding:0 18px;}
  .nav-panel{flex-wrap:wrap;gap:12px;padding:12px;}
  .nav-cards{order:3;width:100%;flex:1 0 100%;padding-bottom:2px;}
  .nav-card{padding:8px 11px;font-size:13px;}
  .nav-card span{font-size:13px;}
  .brand-text{font-size:15.5px;}
  h1{font-size:clamp(28px,7vw,38px);}
  .hero-lead{font-size:16px;}
  .back-panel{padding:28px 22px;}
  .related-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--border);}
  .metric:last-child{border-bottom:0;}
  .faq-q{padding:16px 16px;font-size:15.5px;}
  .faq-a .inner{padding:0 16px 18px;}
  .breadcrumb{font-size:12.5px;}
}
@media (max-width:520px){
  .search-panel{padding:16px;}
  .search-input-wrap{height:48px;}
  .search-field .btn{width:100%;}
  .aside-card{padding:20px;}
  .back-head{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}