/* roulang page: index */
:root{
  --brand-1:#FF5A2B;
  --brand-2:#FF8A1F;
  --purple-1:#6A3DF0;
  --purple-2:#A855F7;
  --mint:#12D18E;
  --alert:#FF3B6B;
  --bg:#FFF7F2;
  --bg-alt:#FDF1E9;
  --card:#FFFFFF;
  --dark:#17131F;
  --t1:#1B1622;
  --t2:#5B5468;
  --t3:#8B8496;
  --line:#F0E4DC;
  --line-dark:#2A2438;
  --grad:linear-gradient(118deg,#FF5A2B 0%,#FF8A1F 100%);
  --grad-p:linear-gradient(118deg,#6A3DF0 0%,#A855F7 100%);
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-xl:28px;
  --r-pill:999px;
  --sh1:0 2px 8px rgba(27,22,34,.06);
  --sh2:0 12px 28px rgba(27,22,34,.12);
  --sh3:0 20px 48px rgba(106,61,240,.18);
  --pad:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1{font-size:clamp(28px,5.6vw,54px);font-weight:800;line-height:1.15;letter-spacing:-0.02em;}
h2{font-size:clamp(22px,3.6vw,34px);font-weight:800;line-height:1.25;letter-spacing:-0.01em;}
h3{font-size:18px;font-weight:700;line-height:1.4;}
:focus-visible{outline:3px solid rgba(255,90,43,.55);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--pad,1200px);margin:0 auto;padding:0 16px;}
@media(min-width:640px){.container{padding:0 24px;}}
@media(min-width:1440px){.container{max-width:1320px;padding:0 32px;}}
section{padding:48px 0;}
@media(min-width:1024px){section{padding:88px 0;}}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.sec-head{margin-bottom:28px;}
.sec-head h2{margin-bottom:8px;}
.sec-head p{font-size:14px;color:var(--t2);}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(255,90,43,.28);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,90,43,.32);}
.btn-primary:active{filter:saturate(.92);transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--t1);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh1);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1;
}
.badge b{font-variant-numeric:tabular-nums;font-weight:800;}
.badge-mint{background:rgba(18,209,142,.12);color:#0B9E6C;border:1px solid rgba(18,209,142,.28);}
.badge-mint b{color:var(--mint);}
.badge-hot{background:rgba(255,90,43,.12);color:#C93C13;border:1px solid rgba(255,90,43,.24);}
.badge-hot b{color:var(--brand-1);}
.badge-purple{background:rgba(106,61,240,.10);color:#4B25B7;border:1px solid rgba(106,61,240,.22);}
.badge-plain{background:var(--bg-alt);color:var(--t2);border:1px solid var(--line);}
.badge-dark{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(6px);}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:8px 0 0;}
.site-header.is-scrolled{padding-top:6px;}
.nav-panel{
  display:flex;align-items:center;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:8px 12px;box-shadow:var(--sh1);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.is-scrolled .nav-panel{box-shadow:var(--sh2);padding:6px 12px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:14px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;
  box-shadow:0 6px 14px rgba(255,90,43,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--t3);letter-spacing:.06em;}
.nav-cards{display:none;gap:8px;margin-left:8px;flex:1 1 auto;}
.nav-card{
  display:inline-flex;align-items:center;gap:6px;
  height:40px;padding:0 14px;border-radius:14px;
  background:var(--bg-alt);border:1px solid transparent;
  font-size:13px;font-weight:700;color:var(--t2);
  transition:all .2s ease;
}
.nav-card i{font-size:13px;}
.nav-card:hover{color:var(--brand-1);border-color:var(--brand-1);background:#fff;transform:translateY(-1px);}
.nav-card.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 6px 16px rgba(255,90,43,.26);}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}
.nav-right .btn{display:none;}
.nav-right .badge{display:none;}
.nav-toggle{
  width:44px;height:44px;border-radius:14px;background:var(--bg-alt);
  display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--t1);
}
.nav-drawer{
  position:fixed;inset:0;z-index:80;background:rgba(23,19,31,.5);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.nav-drawer.is-open{opacity:1;visibility:visible;}
.nav-drawer-inner{
  position:absolute;top:0;right:0;bottom:0;width:min(90vw,380px);
  background:var(--bg);border-radius:24px 0 0 24px;
  padding:20px 16px 88px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s ease;
}
.nav-drawer.is-open .nav-drawer-inner{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head strong{font-size:16px;font-weight:800;}
.drawer-close{width:40px;height:40px;border-radius:12px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.drawer-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:16px 12px;display:flex;flex-direction:column;gap:8px;min-height:88px;
  font-size:13px;font-weight:700;color:var(--t1);transition:all .2s ease;
}
.drawer-card i{font-size:18px;color:var(--brand-1);}
.drawer-card.is-active{background:var(--grad);color:#fff;border-color:transparent;}
.drawer-card.is-active i{color:#fff;}
.drawer-foot{position:absolute;left:0;right:0;bottom:0;padding:14px 16px calc(14px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line);border-radius:0 0 0 24px;}
.drawer-foot .btn{width:100%;}
@media(min-width:1024px){
  .nav-cards{display:flex;}
  .nav-right .btn{display:inline-flex;}
  .nav-right .badge{display:inline-flex;}
  .nav-toggle{display:none;}
  .nav-drawer{display:none;}
}

/* ---------- hero ---------- */
.hero{padding-top:32px;padding-bottom:48px;}
@media(min-width:1024px){.hero{padding-top:56px;padding-bottom:88px;}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media(min-width:1024px){.hero-grid{grid-template-columns:1fr 1fr;gap:56px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:12px;font-weight:700;color:var(--brand-1);margin-bottom:18px;
}
.hero h1 .hl{
  position:relative;display:inline-block;
}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:6px;border-radius:3px;
  background:var(--grad);opacity:.28;
}
.hero-sub{font-size:16px;color:var(--t2);margin-top:16px;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.trust-row li{
  display:inline-flex;align-items:center;gap:6px;
  height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--bg-alt);font-size:12px;font-weight:600;color:var(--t2);
}
.trust-row i{color:var(--brand-1);font-size:12px;}

.phone-card{
  position:relative;width:100%;max-width:340px;margin:0 auto;
  aspect-ratio:4/5;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid rgba(168,85,247,.35);
  box-shadow:var(--sh3);background:var(--dark);
  transition:transform .3s ease;
}
@media(min-width:1024px){.phone-card{aspect-ratio:9/16;max-width:360px;max-height:620px;}}
.phone-card:hover{transform:translateY(-4px);}
.phone-card > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.phone-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(23,19,31,.15) 0%,rgba(23,19,31,.6) 100%);}
.play-btn{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;
  background:rgba(255,255,255,.2);backdrop-filter:blur(6px);
  border:2px solid rgba(255,255,255,.65);color:#fff;font-size:20px;
  display:flex;align-items:center;justify-content:center;
  transition:transform .25s ease;
  animation:pulse 2.4s infinite;
}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.06);}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,255,255,.35);}
  70%{box-shadow:0 0 0 18px rgba(255,255,255,0);}
  100%{box-shadow:0 0 0 0 rgba(255,255,255,0);}
}
.phone-duration{
  position:absolute;top:16px;right:16px;
  height:26px;padding:0 10px;border-radius:var(--r-pill);
  background:rgba(23,19,31,.72);color:#fff;font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;font-variant-numeric:tabular-nums;
}
.phone-bottom{position:absolute;left:0;right:0;bottom:0;padding:18px;}
.phone-bottom h3{color:#fff;font-size:17px;margin-bottom:10px;text-shadow:0 2px 10px rgba(0,0,0,.5);}
.phone-stats{display:flex;gap:8px;flex-wrap:wrap;}

/* ---------- clips ---------- */
.clips{background:var(--bg-alt);}
.clip-rail{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 18px;margin:0 -4px;
  -webkit-overflow-scrolling:touch;
}
.clip-rail::-webkit-scrollbar{height:6px;}
.clip-rail::-webkit-scrollbar-thumb{background:#E7D6CB;border-radius:3px;}
.clip-card{
  flex:0 0 78vw;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--sh1);transition:transform .25s ease,box-shadow .25s ease;
}
.clip-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);}
.clip-thumb{position:relative;aspect-ratio:3/4;overflow:hidden;}
.clip-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.clip-card:hover .clip-thumb img{transform:scale(1.04);}
.clip-time{
  position:absolute;top:12px;left:12px;height:24px;padding:0 10px;
  border-radius:var(--r-pill);background:rgba(23,19,31,.72);color:#fff;
  font-size:12px;font-weight:700;display:inline-flex;align-items:center;
  font-variant-numeric:tabular-nums;
}
.clip-hot{position:absolute;top:12px;right:12px;background:rgba(255,255,255,.94);}
.clip-body{padding:14px 16px 18px;}
.clip-body h3{font-size:17px;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:48px;}
.clip-tags{display:flex;flex-wrap:wrap;gap:6px;}
.clip-tags span{
  font-size:12px;font-weight:600;color:var(--t2);
  background:var(--bg-alt);border-radius:var(--r-pill);padding:3px 10px;
}
@media(min-width:640px){
  .clip-rail{display:grid;grid-template-columns:repeat(2,1fr);overflow:visible;padding:0;margin:0;}
  .clip-card{flex:none;}
}
@media(min-width:1024px){.clip-rail{grid-template-columns:repeat(4,1fr);}}

/* ---------- seed list ---------- */
.seed-list{display:flex;flex-direction:column;gap:12px;}
.seed-item{
  display:flex;align-items:center;gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:20px 22px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.seed-item:nth-child(even){background:var(--bg-alt);}
.seed-item:hover{transform:translateX(4px);border-color:#E9D6C9;box-shadow:var(--sh1);}
.seed-num{
  flex:0 0 auto;font-size:40px;font-weight:800;line-height:1;
  background:var(--grad-p);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;padding-right:18px;
  border-right:2px solid transparent;
  border-image:var(--grad-p) 1;
}
.seed-body{flex:1 1 auto;min-width:0;}
.seed-body h3{font-size:17px;margin-bottom:4px;}
.seed-body p{font-size:14px;color:var(--t2);}
.seed-arrow{flex:0 0 auto;color:var(--t3);transition:transform .22s ease,color .22s ease;}
.seed-item:hover .seed-arrow{transform:translateX(4px);color:var(--brand-1);}
.seed-summary{
  background:var(--dark);color:#fff;border-radius:var(--r-m);
  padding:22px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;border:1px solid var(--line-dark);
}
.seed-summary h3{width:100%;font-size:16px;color:#fff;margin-bottom:4px;}
@media(max-width:520px){
  .seed-item{flex-wrap:wrap;gap:12px;padding:18px;}
  .seed-num{font-size:30px;padding-right:0;border-right:0;}
}

/* ---------- reviews ---------- */
.reviews{background:var(--bg-alt);}
.review-rail{display:flex;gap:16px;overflow-x:auto;padding:4px 4px 18px;scroll-snap-type:x mandatory;}
.review-rail::-webkit-scrollbar{height:6px;}
.review-rail::-webkit-scrollbar-thumb{background:#E7D6CB;border-radius:3px;}
.review-card{
  flex:0 0 84vw;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:18px;box-shadow:var(--sh1);
}
.review-top{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.avatar{
  width:40px;height:40px;border-radius:50%;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;font-weight:800;flex:0 0 auto;
}
.review-name{font-size:14px;font-weight:700;}
.review-time{font-size:12px;color:var(--t3);}
.stars{color:#FFB020;font-size:12px;letter-spacing:2px;margin-bottom:8px;}
.review-card p{font-size:14px;color:var(--t2);line-height:1.7;}
@media(min-width:640px){
  .review-rail{display:grid;grid-template-columns:repeat(2,1fr);overflow:visible;padding:0;}
  .review-card{flex:none;}
}
@media(min-width:1024px){.review-rail{grid-template-columns:repeat(3,1fr);}}

/* ---------- dark cta ---------- */
.cta-panel{
  background:var(--dark);border:1px solid var(--line-dark);border-radius:var(--r-l);
  padding:28px;display:grid;gap:22px;align-items:center;
}
@media(min-width:1024px){.cta-panel{grid-template-columns:1.2fr auto auto;padding:40px;gap:32px;}}
.cta-panel h2{color:#fff;font-size:clamp(20px,3vw,28px);margin-bottom:8px;}
.cta-panel p{color:#B9B3C6;font-size:14px;max-width:460px;}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;}
.cta-panel .btn-primary{width:100%;}
@media(min-width:1024px){.cta-panel .btn-primary{width:auto;}}

/* ---------- news / cms list ---------- */
.news-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:28px;}
.more-link{font-size:14px;font-weight:700;color:var(--brand-1);display:inline-flex;align-items:center;gap:6px;}
.more-link i{transition:transform .2s ease;}
.more-link:hover i{transform:translateX(4px);}
.news-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(4,1fr);}}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);}
.news-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:16px 18px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-cat{
  align-self:flex-start;font-size:12px;font-weight:700;color:var(--brand-1);
  background:rgba(255,90,43,.10);border-radius:var(--r-pill);padding:3px 12px;margin-bottom:10px;
}
.news-body h3{
  font-size:17px;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:48px;
}
.news-body .excerpt{
  font-size:14px;color:var(--t2);line-height:1.7;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px;
  font-size:12px;color:var(--t3);padding-top:12px;border-top:1px solid var(--line);
}
.news-meta .arrow{color:var(--brand-1);transition:transform .2s ease;}
.news-card:hover .news-meta .arrow{transform:translateX(4px);}
.empty-state{
  grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--r-l);
  padding:48px 24px;text-align:center;color:var(--t2);
}
.empty-state i{font-size:34px;color:#D9C8BC;margin-bottom:14px;display:block;}
.empty-state p{margin-bottom:16px;font-size:15px;}

/* ---------- categories quick ---------- */
.cat-quick{background:var(--bg-alt);}
.cat-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media(min-width:640px){.cat-grid{grid-template-columns:repeat(3,1fr);}}
.cat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  padding:24px;display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#E9D6C9;}
.cat-icon{
  width:48px;height:48px;border-radius:16px;background:var(--bg-alt);
  display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--brand-1);
}
.cat-card:hover .cat-icon{background:var(--grad);color:#fff;}
.cat-card h3{font-size:19px;}
.cat-card p{font-size:14px;color:var(--t2);}
.cat-card .cat-link{font-size:13px;font-weight:700;color:var(--brand-1);display:inline-flex;align-items:center;gap:6px;margin-top:auto;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:14px 20px;text-align:left;font-size:17px;font-weight:700;color:var(--t1);
  transition:background-color .2s ease;
}
.faq-q:hover{background:var(--bg-alt);}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--brand-1);transition:all .25s ease;
}
.faq-item.is-open .faq-icon{background:var(--grad);color:#fff;border-color:transparent;transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 20px 20px;font-size:15px;color:var(--t2);line-height:1.8;}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-item.is-open .faq-a-inner{border-top:1px solid transparent;border-image:var(--grad) 1;padding-top:16px;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#C8C2D4;margin-top:48px;position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:48px 0 32px;}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px;}}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:#8B8496;}
.footer-brand p{font-size:13px;color:#8B8496;margin-top:14px;max-width:280px;line-height:1.7;}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13px;color:#B9B3C6;transition:color .2s ease;}
.footer-col a:hover{color:var(--brand-2);}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:20px 0 calc(20px + env(safe-area-inset-bottom));
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;
  font-size:12px;color:#8B8496;
}
.footer-bottom a{color:#8B8496;}
.footer-bottom a:hover{color:var(--brand-2);}

/* ---------- mobile sticky cta ---------- */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#fff;border-top:1px solid var(--line);
  padding:8px 16px calc(8px + env(safe-area-inset-bottom));
  display:flex;align-items:center;gap:12px;
  box-shadow:0 -6px 20px rgba(27,22,34,.08);
  transform:translateY(110%);transition:transform .3s ease;
}
.mobile-cta.is-visible{transform:translateY(0);}
.mobile-cta span{font-size:13px;font-weight:700;color:var(--t2);flex:1 1 auto;}
.mobile-cta .btn{min-height:44px;padding:0 20px;font-size:14px;}
@media(min-width:1024px){.mobile-cta{display:none;}}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --brand:#FF5A2B;
  --brand-2:#FF8A1F;
  --purple:#6A3DF0;
  --purple-2:#A855F7;
  --mint:#12D18E;
  --warn:#FF3B6B;
  --bg:#FFF7F2;
  --card:#FFFFFF;
  --alt:#FDF1E9;
  --dark:#17131F;
  --text:#1B1622;
  --text-2:#5B5468;
  --text-3:#8B8496;
  --line:#F0E4DC;
  --line-dark:#2A2438;
  --grad:linear-gradient(118deg,var(--brand) 0%,var(--brand-2) 45%,var(--purple) 100%);
  --grad-soft:linear-gradient(118deg,rgba(255,90,43,.12) 0%,rgba(106,61,240,.12) 100%);
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(27,22,34,.06);
  --sh-2:0 12px 28px rgba(27,22,34,.12);
  --sh-3:0 20px 48px rgba(106,61,240,.18);
  --sp-section:88px;
  --font:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(255,90,43,.55);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25}
p{margin:0 0 16px}
ul,ol{margin:0 0 16px;padding-left:22px}
button{font-family:inherit;cursor:pointer;border:0;background:none}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 16px;
}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1200px){.container{max-width:1320px;padding:0 32px}}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:8px 0;
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(27,22,34,.10)}
.nav-panel{
  display:flex;
  align-items:center;
  gap:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  padding:9px 12px;
  box-shadow:var(--sh-1);
  transition:padding .25s ease;
}
.site-header.is-scrolled .nav-panel{padding:6px 12px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:14px;
  background:var(--grad);
  color:#fff;
  font-size:17px;
  box-shadow:0 8px 18px rgba(255,90,43,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.08em}
.nav-cards{display:flex;align-items:center;gap:8px;margin-left:6px;flex:1 1 auto;min-width:0}
.nav-card{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 14px;
  border-radius:14px;
  background:var(--alt);
  border:1px solid transparent;
  font-size:14px;font-weight:700;
  color:var(--text-2);
  white-space:nowrap;
  transition:transform .2s ease,color .2s ease,background .2s ease,border-color .2s ease;
}
.nav-card i{font-size:13px;color:var(--brand)}
.nav-card:hover{
  color:var(--brand);
  border-color:rgba(255,90,43,.45);
  transform:translateY(-2px);
  background:#fff;
}
.nav-card.is-active{
  background:var(--grad);
  color:#fff;
  border-color:transparent;
  box-shadow:0 8px 20px rgba(255,90,43,.26);
}
.nav-card.is-active i{color:#fff}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:700;
  background:var(--alt);
  color:var(--text-2);
  border:1px solid var(--line);
  font-variant-numeric:tabular-nums;
}
.badge b{font-family:var(--mono);font-weight:700}
.badge-mint{color:#0B8F62;border-color:rgba(18,209,142,.35);background:rgba(18,209,142,.10)}
.badge-mint i{color:var(--mint)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;
  padding:0 20px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:800;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,90,43,.28)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,90,43,.34)}
.btn-primary:active{filter:saturate(.92);transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:13px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  background:var(--alt);
  color:var(--text);
  font-size:17px;
}
.nav-drawer{
  position:fixed;inset:0;
  background:rgba(23,19,31,.55);
  backdrop-filter:blur(3px);
  z-index:90;
  opacity:0;visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
}
.nav-drawer.is-open{opacity:1;visibility:visible}
.nav-drawer-inner{
  position:absolute;left:0;right:0;bottom:0;
  background:var(--card);
  border-radius:26px 26px 0 0;
  padding:18px 16px calc(18px + env(safe-area-inset-bottom));
  max-height:88vh;
  overflow-y:auto;
  transform:translateY(14px);
  transition:transform .26s ease;
}
.nav-drawer.is-open .nav-drawer-inner{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-head strong{font-size:17px}
.drawer-close{width:44px;height:44px;border-radius:14px;background:var(--alt);font-size:17px}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drawer-card{
  display:flex;flex-direction:column;gap:8px;
  padding:14px;
  border-radius:var(--r-m);
  background:var(--alt);
  border:1px solid var(--line);
  font-weight:700;font-size:14px;
}
.drawer-card i{font-size:16px;color:var(--brand)}
.drawer-card.is-active{background:var(--grad);color:#fff;border-color:transparent}
.drawer-card.is-active i{color:#fff}
.drawer-foot{margin-top:14px}
.drawer-foot .btn{width:100%}

/* ---------- Article ---------- */
.article-hero{
  position:relative;
  padding:26px 0 34px;
  background:var(--alt);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-hero::after{
  content:"";
  position:absolute;right:-80px;top:-60px;
  width:320px;height:320px;border-radius:50%;
  background:var(--grad-soft);
  filter:blur(10px);
  pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  margin-bottom:16px;
}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#CFC4BB}
.breadcrumb .current{
  max-width:16em;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  color:var(--text-2);font-weight:600;
}
.article-hero h1{
  font-size:clamp(26px,4.4vw,42px);
  line-height:1.2;
  letter-spacing:-.02em;
  max-width:22em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:700;
  background:#fff;
  color:var(--brand);
  border:1px solid rgba(255,90,43,.28);
}
.chip-plain{background:#fff;color:var(--text-3);border-color:var(--line);font-weight:600}
.chip i{font-size:11px}

.article-wrap{padding:44px 0 0}
.article-main{max-width:760px;margin:0 auto}
.article-body{font-size:16.5px;line-height:1.85;color:var(--text)}
.article-body h2{
  font-size:22px;margin:38px 0 14px;padding-left:14px;
  position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.24em;
  width:4px;border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:18px;margin:28px 0 10px}
.article-body p{margin:0 0 18px}
.article-body img{border-radius:var(--r-m);margin:12px 0}
.article-body figure{margin:18px 0}
.article-body figcaption{
  font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;
}
.article-body blockquote{
  margin:20px 0;
  padding:14px 18px;
  background:var(--alt);
  border-left:4px solid var(--brand);
  border-image:var(--grad) 1;
  border-radius:0 var(--r-s) var(--r-s) 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ol{counter-reset:none}
.article-body ol>li::marker{color:var(--brand);font-weight:800}
.article-body ul>li::marker{color:var(--purple)}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(255,90,43,.35)}
.article-body a:hover{border-bottom-color:var(--brand)}
.article-body pre{
  background:var(--alt);
  border:1px solid var(--line);
  border-radius:var(--r-s);
  padding:14px 16px;
  overflow-x:auto;
  font-family:var(--mono);
  font-size:14px;
  line-height:1.7;
}
.article-body code{
  font-family:var(--mono);
  font-size:.92em;
  background:var(--alt);
  border-radius:6px;
  padding:2px 6px;
}
.article-body pre code{background:none;padding:0}
.article-body table{
  width:100%;border-collapse:collapse;margin:20px 0;
  font-size:14.5px;
  border-radius:var(--r-s);overflow:hidden;
}
.article-body th,.article-body td{
  padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;
}
.article-body th{background:var(--alt);font-weight:800}
.article-body hr{border:0;border-top:1px solid var(--line);margin:30px 0}

.empty-state{
  background:var(--card);
  border:1px dashed var(--line);
  border-radius:var(--r-l);
  padding:48px 24px;
  text-align:center;
  box-shadow:var(--sh-1);
}
.empty-state i{font-size:30px;color:var(--brand);margin-bottom:12px;display:block}
.empty-state h3{font-size:19px;margin-bottom:8px}
.empty-state p{color:var(--text-2);margin-bottom:20px}

.back-line{
  margin:34px 0 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
}

/* ---------- Related ---------- */
.section{padding:var(--sp-section) 0}
.section-alt{background:var(--alt)}
.section-head{margin-bottom:30px}
.section-head h2{font-size:clamp(22px,3.4vw,32px)}
.section-head p{font-size:14px;color:var(--text-2);margin:8px 0 0}
.card-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media (min-width:640px){.card-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.post-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,43,.3)}
.post-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--alt)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-tag{
  align-self:flex-start;
  padding:4px 11px;border-radius:var(--r-pill);
  background:var(--alt);color:var(--brand);
  font-size:12px;font-weight:700;
}
.post-body h3{
  font-size:17px;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body p{
  font-size:14px;color:var(--text-2);line-height:1.7;margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--text-3);
  border-top:1px solid var(--line);
  padding-top:12px;
}
.post-foot .go{color:var(--brand);font-weight:800;transition:transform .2s ease;display:inline-flex;align-items:center;gap:5px}
.post-card:hover .post-foot .go{transform:translateX(4px)}

/* ---------- CTA ---------- */
.cta-panel{
  background:var(--dark);
  border-radius:var(--r-l);
  border:1px solid var(--line-dark);
  padding:32px 26px;
  color:#fff;
  display:flex;flex-direction:column;gap:22px;
}
.cta-panel h2{font-size:clamp(21px,3vw,28px);color:#fff}
.cta-panel p{color:#B9B3C6;margin:8px 0 0;font-size:14.5px}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px}
.cta-badges .badge{background:#221C2E;border-color:var(--line-dark);color:#D6D1E0}
.cta-badges .badge b{color:var(--mint)}
@media (min-width:900px){
  .cta-panel{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 44px}
  .cta-panel .cta-text{max-width:52%}
}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:0;
  background:#fff;
  border-top:1px solid var(--line);
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:28px;
  padding:52px 0 30px;
}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}}
.footer-brand p{font-size:13.5px;color:var(--text-2);margin:14px 0 0;max-width:20em}
.footer-col h4{font-size:14px;margin-bottom:14px}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:18px 0 26px;
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;
  font-size:12.5px;color:var(--text-3);
}

@media (max-width:1023px){
  .nav-cards{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .brand-text strong{font-size:16px}
}
@media (max-width:639px){
  :root{--sp-section:52px}
  .nav-right .badge{display:none}
  .section{padding:52px 0}
  .article-wrap{padding:32px 0 0}
  .article-body{font-size:16px}
  .cta-panel{padding:26px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --brand:#FF5A2B;
  --brand-2:#FF8A1F;
  --purple:#6A3DF0;
  --purple-2:#A855F7;
  --mint:#12D18E;
  --warn:#FF3B6B;
  --bg:#FFF7F2;
  --card:#FFFFFF;
  --alt:#FDF1E9;
  --dark:#17131F;
  --text:#1B1622;
  --text-2:#5B5468;
  --text-3:#8B8496;
  --white:#FFFFFF;
  --line:#F0E4DC;
  --line-dark:#2A2438;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-hero:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(27,22,34,.06);
  --sh-2:0 12px 28px rgba(27,22,34,.12);
  --sh-3:0 20px 48px rgba(106,61,240,.18);
  --grad:linear-gradient(118deg,#FF5A2B,#FF8A1F);
  --grad-p:linear-gradient(118deg,#6A3DF0,#A855F7);
  --font:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -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;}
h1,h2,h3,h4{margin:0;line-height:1.3;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(255,90,43,.5);outline-offset:2px;border-radius:6px;}
body.no-scroll{overflow:hidden;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1200px){.container{max-width:1320px;padding:0 32px;}}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:10px 0;transition:padding .24s ease;}
.site-header.is-scrolled{padding:6px 0;}
.nav-panel{
  display:flex;align-items:center;gap:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  padding:10px 14px;
  box-shadow:var(--sh-1);
  transition:box-shadow .24s ease;
}
.site-header.is-scrolled .nav-panel{box-shadow:var(--sh-2);}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:14px;
  background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:18px;
  box-shadow:0 8px 18px rgba(255,90,43,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.22;}
.brand-text strong{font-size:18px;font-weight:700;letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);}
.nav-cards{display:flex;align-items:center;gap:8px;margin-left:6px;}
.nav-card{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 13px;border-radius:14px;
  background:var(--alt);border:1px solid transparent;
  font-size:14px;color:var(--text-2);font-weight:600;
  transition:all .2s ease;min-height:44px;
}
.nav-card i{font-size:14px;color:var(--text-3);transition:color .2s ease;}
.nav-card:hover{border-color:var(--brand);color:var(--brand);background:#fff;}
.nav-card:hover i{color:var(--brand);}
.nav-card.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 18px rgba(255,90,43,.24);}
.nav-card.is-active i{color:#fff;}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  background:var(--alt);border:1px solid var(--line);
  place-items:center;cursor:pointer;font-size:16px;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

.nav-drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(23,19,31,.52);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.nav-drawer.is-open{opacity:1;visibility:visible;}
.nav-drawer-inner{
  position:absolute;top:0;right:0;bottom:0;
  width:min(88vw,390px);
  background:var(--bg);
  padding:20px 20px calc(20px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .28s ease;
}
.nav-drawer.is-open .nav-drawer-inner{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-head strong{font-size:17px;font-weight:700;}
.drawer-close{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;cursor:pointer;font-size:16px;
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.drawer-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:20px 0;}
.drawer-card{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  min-height:88px;padding:14px 10px;border-radius:14px;
  background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--text-2);
  transition:all .2s ease;
}
.drawer-card i{font-size:17px;color:var(--brand);}
.drawer-card.is-active{background:var(--grad);border-color:transparent;color:#fff;}
.drawer-card.is-active i{color:#fff;}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,90,43,.28);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,90,43,.34);}
.btn-primary:active{filter:saturate(.92);transform:translateY(0);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--r-pill);
  background:var(--alt);border:1px solid var(--line);
  font-size:12px;font-weight:600;color:var(--text-2);
  white-space:nowrap;
}
.badge b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:700;}
.badge-mint{background:#E7FBF2;border-color:#BEEFDD;color:#0B7A56;}
.badge-mint b{color:#0B7A56;}
.badge-orange{background:#FFF0E8;border-color:#FFD8C6;color:#B33A12;}
.badge-orange b{color:#B33A12;}
.badge-purple{background:#F3EDFF;border-color:#E1D5FF;color:#4C2BB5;}
.badge-purple b{color:#4C2BB5;}

/* ---------- sections ---------- */
.section{padding:48px 0;}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-alt{background:var(--alt);}
.sec-head{margin-bottom:26px;max-width:820px;}
.sec-head h2{font-size:clamp(22px,3.6vw,34px);font-weight:800;letter-spacing:-.01em;margin-bottom:8px;}
.sec-head p{font-size:14px;color:var(--text-2);margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);text-transform:uppercase;margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad);}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:26px 0 52px;
  background-image:linear-gradient(180deg,rgba(255,247,242,.9),rgba(255,247,242,.97)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:14px;flex-wrap:wrap;}
.crumb a:hover{color:var(--brand);}
.crumb i{font-size:10px;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:48px;}}
.hero h1{
  font-size:clamp(28px,5.6vw,54px);font-weight:800;line-height:1.15;
  letter-spacing:-.02em;margin:0 0 14px;
}
.hero h1 .hl{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  position:relative;
}
.hero .lead{font-size:17px;color:var(--text-2);margin:0 0 24px;max-width:520px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px;}

.phone-card{
  position:relative;border-radius:var(--r-hero);overflow:hidden;
  aspect-ratio:4/5;max-height:560px;
  border:1px solid var(--line);background:var(--dark);
  box-shadow:var(--sh-3);
  transition:transform .3s ease,box-shadow .3s ease;
}
@media (min-width:1024px){.phone-card{aspect-ratio:9/16;max-height:620px;}}
.phone-card:hover{transform:translateY(-4px);}
.phone-card img{width:100%;height:100%;object-fit:cover;}
.phone-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(23,19,31,.05) 25%,rgba(23,19,31,.78) 100%);
}
.play-btn{
  position:absolute;left:50%;top:42%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;
  background:rgba(255,255,255,.22);border:2px solid rgba(255,255,255,.72);
  color:#fff;display:grid;place-items:center;font-size:20px;z-index:2;
  animation:pulse 2.6s ease-in-out infinite;
  transition:transform .24s ease;
}
.phone-card:hover .play-btn{transform:translate(-50%,-50%) scale(1.06);}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(255,255,255,.34);}
  50%{box-shadow:0 0 0 14px rgba(255,255,255,0);}
}
.phone-duration{
  position:absolute;right:14px;top:14px;z-index:2;
  padding:5px 11px;border-radius:var(--r-pill);
  background:rgba(23,19,31,.62);color:#fff;font-size:12px;font-weight:600;
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  border:1px solid rgba(255,255,255,.22);
}
.phone-meta{position:absolute;left:18px;right:18px;bottom:18px;z-index:2;color:#fff;}
.phone-meta h3{font-size:17px;font-weight:700;margin-bottom:10px;}
.phone-meta .badge-row{display:flex;gap:8px;flex-wrap:wrap;}
.phone-meta .badge{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.24);color:#fff;}
.phone-meta .badge b{color:var(--mint);}

/* ---------- feature cards ---------- */
.card-grid{margin-left:-10px;margin-right:-10px;}
.card-grid > .cell{padding:0 10px 20px;}
.feature-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;height:100%;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#FFD3BF;}
.feature-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--alt);color:var(--brand);font-size:18px;margin-bottom:14px;
}
.feature-card h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.feature-card p{font-size:14px;color:var(--text-2);margin:0;}
.card-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 10px;border-radius:var(--r-pill);
  background:var(--alt);color:#B33A12;font-size:12px;font-weight:600;
}

/* ---------- timeline ---------- */
.tl-layout{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:1024px){.tl-layout{grid-template-columns:340px 1fr;gap:32px;}}
.toc-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);
}
@media (min-width:1024px){.toc-card{position:sticky;top:104px;}}
.toc-card h3{font-size:16px;font-weight:700;margin-bottom:14px;}
.toc-list{display:flex;flex-direction:column;gap:4px;margin-bottom:18px;}
.toc-list a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:12px;font-size:14px;color:var(--text-2);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.toc-list a b{
  font-family:var(--mono);font-size:13px;font-weight:700;
  color:var(--purple);font-variant-numeric:tabular-nums;
}
.toc-list a:hover{background:var(--alt);color:var(--brand);transform:translateX(4px);}
.toc-foot{display:flex;flex-direction:column;gap:10px;padding-top:16px;border-top:1px dashed var(--line);}
.toc-note{font-size:13px;color:var(--text-3);}

.steps{display:flex;flex-direction:column;gap:16px;}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px 22px 22px 28px;box-shadow:var(--sh-1);
  scroll-margin-top:110px;overflow:hidden;
  transition:transform .24s ease,box-shadow .24s ease;
}
.step::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:4px;
  border-radius:0 4px 4px 0;background:var(--grad-p);
}
.step:hover{transform:translateX(4px);box-shadow:var(--sh-2);}
.step-num{
  display:inline-block;font-family:var(--mono);font-size:22px;font-weight:700;
  background:var(--grad-p);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;margin-bottom:6px;
}
.step h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.step p{font-size:15px;color:var(--text-2);margin:0 0 12px;}
.step .step-meta{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- device cards ---------- */
.device-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;height:100%;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease;
}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.device-thumb{width:100%;aspect-ratio:16/10;object-fit:cover;}
.device-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.device-body h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.device-body p{font-size:14px;color:var(--text-2);margin:0 0 14px;}
.spec-list{display:flex;flex-direction:column;gap:0;margin:auto 0 16px;}
.spec-list li{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 0;border-top:1px dashed var(--line);font-size:14px;color:var(--text-2);
}
.spec-list li:first-child{border-top:0;}
.spec-list span{color:var(--text-3);font-size:13px;}
.spec-list strong{font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;}

/* ---------- stats strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
@media (min-width:768px){.stat-strip{grid-template-columns:repeat(4,1fr);}}
.stat{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 18px;text-align:center;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease;
}
.stat:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.stat b{
  display:block;font-family:var(--mono);font-size:clamp(24px,4vw,32px);
  font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.stat b em{font-style:normal;font-size:14px;color:var(--text-3);font-weight:600;margin-left:2px;}
.stat span{display:block;font-size:13px;color:var(--text-3);margin-top:4px;}
.stat.is-mint b{color:#0B7A56;}
.stat.is-purple b{color:var(--purple);}
.stat.is-orange b{color:#C7410F;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow .24s ease;}
.faq-item.is-open{box-shadow:var(--sh-2);}
.faq-q{
  width:100%;min-height:64px;padding:14px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:700;color:var(--text);
}
.faq-icon{
  flex-shrink:0;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;font-size:13px;
  background:var(--alt);color:var(--brand);transition:background .22s ease,color .22s ease;
}
.faq-item.is-open .faq-icon{background:var(--grad);color:#fff;}
.faq-a{max-height:0;overflow:hidden;padding:0 20px;transition:max-height .22s ease,padding .22s ease;}
.faq-a::before{content:"";display:block;height:1px;background:var(--grad);margin-bottom:14px;opacity:.7;}
.faq-a p{font-size:15px;color:var(--text-2);margin:0 0 18px;}
.faq-item.is-open .faq-a{max-height:340px;}

/* ---------- cta panel ---------- */
.cta-panel{
  background:var(--dark);border-radius:var(--r-lg);
  padding:28px;color:#fff;
  display:grid;grid-template-columns:1fr;gap:22px;
  border:1px solid var(--line-dark);
}
@media (min-width:1024px){
  .cta-panel{grid-template-columns:1.25fr auto auto;align-items:center;gap:32px;padding:36px 40px;}
}
.cta-panel h2{font-size:clamp(22px,3.2vw,30px);font-weight:800;color:#fff;margin-bottom:8px;}
.cta-panel p{font-size:14px;color:#B9B2C6;margin:0;}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;}
.cta-panel .badge{background:rgba(255,255,255,.07);border-color:var(--line-dark);color:#D8D2E4;}
.cta-panel .badge b{color:var(--mint);}

/* ---------- footer ---------- */
.site-footer{position:relative;background:#fff;padding:48px 0 24px;border-top:1px solid var(--line);}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:2px;background:var(--grad);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}}
.footer-brand p{font-size:14px;color:var(--text-2);margin:14px 0 0;max-width:280px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:32px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- responsive nav ---------- */
@media (max-width:1023px){
  .nav-cards{display:none;}
  .nav-right .btn{display:none;}
  .nav-toggle{display:grid;}
  .brand-text strong{font-size:16px;}
  .nav-panel{padding:8px 10px;gap:10px;}
}
@media (max-width:639px){
  .nav-right .badge{display:none;}
  .hero{padding-bottom:40px;}
  .section{padding:44px 0;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .brand-text em{display:none;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}

/* roulang page: category2 */
:root{
  --brand:#FF5A2B;
  --brand-2:#FF8A1F;
  --violet:#6A3DF0;
  --violet-2:#A855F7;
  --mint:#12D18E;
  --alert:#FF3B6B;
  --bg:#FFF7F2;
  --card:#FFFFFF;
  --alt:#FDF1E9;
  --panel:#17131F;
  --ink:#1B1622;
  --ink-2:#5B5468;
  --ink-3:#8B8496;
  --line:#F0E4DC;
  --line-dark:#2A2438;
  --grad:linear-gradient(118deg,#FF5A2B 0%,#FF8A1F 100%);
  --grad-violet:linear-gradient(118deg,#6A3DF0 0%,#A855F7 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-hero:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(27,22,34,.06);
  --sh-2:0 12px 28px rgba(27,22,34,.12);
  --sh-3:0 20px 48px rgba(106,61,240,.18);
  --sec-y:48px;
  --font:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,"DIN Alternate",SFMono-Regular,Menlo,Consolas,monospace;
}
@media (min-width:1024px){ :root{ --sec-y:88px; } }

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:3px solid rgba(255,90,43,.6);outline-offset:2px;border-radius:8px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:768px){ .container{padding:0 24px} }
@media (min-width:1024px){ .container{padding:0 32px} }
@media (min-width:1440px){ .container{max-width:1320px} }

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:8px 0;
  background:rgba(255,247,242,.9);
  backdrop-filter:blur(10px);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);padding:4px 0}
.nav-panel{
  display:flex;align-items:center;gap:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  padding:10px 14px;
  box-shadow:var(--sh-1);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;flex:0 0 auto;border-radius:14px;
  background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:17px;
  box-shadow:0 8px 18px rgba(255,90,43,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:12px;color:var(--ink-3)}
@media (min-width:1024px){ .brand-text strong{font-size:18px} }

.nav-cards{display:none;flex:1 1 auto;justify-content:center;gap:8px}
@media (min-width:1024px){ .nav-cards{display:flex} }
.nav-card{
  display:flex;align-items:center;gap:8px;
  min-height:44px;padding:10px 14px;
  border-radius:14px;
  background:var(--alt);
  border:1px solid transparent;
  color:var(--ink-2);
  font-size:14px;font-weight:600;
  transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease;
}
.nav-card i{font-size:14px}
.nav-card:hover{color:var(--brand);background:#fff;border-color:var(--brand);transform:translateY(-1px)}
.nav-card.is-active{background:var(--grad);color:#fff;box-shadow:0 8px 18px rgba(255,90,43,.25)}
.nav-card.is-active:hover{border-color:transparent}

.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-right .badge{display:none}
@media (min-width:768px){ .nav-right .badge{display:inline-flex} }
.nav-right .btn{display:none}
@media (min-width:1024px){ .nav-right .btn{display:inline-flex} }

/* ---------- badges ---------- */
.badge,
span.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;
  border-radius:var(--r-pill);
  background:var(--alt);
  border:1px solid var(--line);
  color:var(--ink-2);
  font-size:12px;font-weight:600;line-height:1.2;
}
.badge b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:700}
.badge.badge-mint{background:rgba(18,209,142,.12);border-color:rgba(18,209,142,.3);color:#0B7A55}
.badge.badge-mint b{color:var(--mint)}
.badge.badge-brand{background:rgba(255,90,43,.1);border-color:rgba(255,90,43,.26);color:#C43A12}
.badge.badge-brand b{color:var(--brand)}
.badge.badge-violet{background:rgba(106,61,240,.1);border-color:rgba(106,61,240,.26);color:#4B25C4}
.badge.badge-violet b{color:var(--violet)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:700;
  transition:filter .22s ease,transform .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,90,43,.28)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px)}
.btn-primary:active{filter:saturate(.92);transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--panel)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px}

/* ---------- mobile drawer ---------- */
.nav-toggle{
  display:grid;place-items:center;
  width:44px;height:44px;border-radius:14px;
  background:var(--alt);border:1px solid var(--line);color:var(--ink);
  transition:background .2s ease,color .2s ease;
}
.nav-toggle:hover{background:#fff;color:var(--brand)}
@media (min-width:1024px){ .nav-toggle{display:none} }
.nav-drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(23,19,31,.55);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
}
.nav-drawer.is-open{opacity:1;visibility:visible}
.nav-drawer-inner{
  position:absolute;top:0;right:0;
  width:min(420px,90vw);height:100%;
  background:var(--bg);
  padding:20px;
  display:flex;flex-direction:column;gap:20px;
  overflow:auto;
  transform:translateX(16px);
  transition:transform .25s ease;
}
.nav-drawer.is-open .nav-drawer-inner{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-head strong{font-size:17px;font-weight:800}
.drawer-close{
  width:44px;height:44px;border-radius:14px;
  background:#fff;border:1px solid var(--line);color:var(--ink);
  display:grid;place-items:center;
}
.drawer-close:hover{color:var(--brand);border-color:var(--brand)}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drawer-card{
  display:flex;flex-direction:column;justify-content:center;gap:10px;
  min-height:96px;padding:14px;
  border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line);
  font-size:15px;font-weight:700;
  transition:border-color .2s ease,transform .2s ease;
}
.drawer-card i{font-size:18px;color:var(--brand)}
.drawer-card:hover{border-color:var(--brand);transform:translateY(-2px)}
.drawer-card.is-active{background:var(--grad);color:#fff;border-color:transparent}
.drawer-card.is-active i{color:#fff}
.drawer-foot{margin-top:auto;display:grid;gap:12px}

/* ---------- hero banner ---------- */
.hero-wrap{padding-top:20px}
.hero-banner{
  position:relative;isolation:isolate;
  overflow:hidden;
  border-radius:var(--r-hero);
  background:var(--panel);
}
.hero-bg{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;opacity:.5;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(23,19,31,.95) 6%,rgba(106,61,240,.72) 56%,rgba(255,90,43,.58) 100%);
}
.hero-body{position:relative;padding:36px 22px 40px}
@media (min-width:1024px){ .hero-body{padding:72px 56px 76px;max-width:850px} }
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:12px;font-weight:700;letter-spacing:.04em;
}
.hero-banner h1{
  color:#fff;
  font-size:clamp(28px,5.6vw,54px);
  line-height:1.15;
  letter-spacing:-.02em;
  font-weight:800;
  margin:18px 0 12px;
}
.hero-banner h1 .hl{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:rgba(255,255,255,.86);font-size:16px;max-width:560px;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-badges .badge{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.22);color:rgba(255,255,255,.9)}
.hero-badges .badge b{color:#fff}
.hero-badges .badge.badge-mint{background:rgba(18,209,142,.16);border-color:rgba(18,209,142,.35);color:rgba(255,255,255,.94)}
.hero-badges .badge.badge-mint b{color:var(--mint)}

/* ---------- sections ---------- */
.section{padding:var(--sec-y) 0}
.section-alt{background:var(--alt)}
.section-head{max-width:700px;margin-bottom:28px}
.section-head .rule{width:64px;height:4px;border-radius:var(--r-pill);background:var(--grad);margin-bottom:16px}
.section-head h2{font-size:clamp(22px,3.6vw,34px);letter-spacing:-.01em}
.section-head p{margin:10px 0 0;font-size:14px;color:var(--ink-2)}

/* ---------- foundation row helper ---------- */
.frow{display:flex;flex-wrap:wrap;margin-left:-10px;margin-right:-10px}
.frow>.cell{padding-left:10px;padding-right:10px;margin-bottom:20px}
@media (min-width:768px){
  .frow{margin-left:-12px;margin-right:-12px}
  .frow>.cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
}
.stack{display:grid;gap:20px}

/* ---------- content cards ---------- */
.card{
  position:relative;
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  margin-bottom:0;
  transition:transform .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-media{position:relative;overflow:hidden;background:var(--alt)}
.card-media.tall{aspect-ratio:4/5}
.card-media.short{aspect-ratio:16/10}
.card-media img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.card:hover .card-media img{transform:scale(1.05)}
.card-tag{
  position:absolute;left:12px;top:12px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.94);
  color:#C43A12;font-size:12px;font-weight:700;
}
.card-time{
  position:absolute;right:12px;top:12px;
  padding:4px 10px;border-radius:var(--r-pill);
  background:rgba(23,19,31,.72);color:#fff;
  font-size:12px;font-family:var(--mono);
}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.chip{
  align-self:flex-start;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(255,90,43,.1);color:#C43A12;
  font-size:12px;font-weight:700;
}
.card h3{
  font-size:19px;font-weight:700;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card p{
  margin:0;font-size:14px;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;gap:14px;
  font-size:12px;color:var(--ink-3);
  margin-top:auto;
}
.card-meta i{font-size:12px}
.card-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--violet);
}
.card-link i{transition:transform .22s ease}
.card:hover .card-link i{transform:translateX(4px)}

/* ---------- steps ---------- */
.step{
  height:100%;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-no{
  display:inline-grid;place-items:center;
  min-width:44px;height:44px;
  border-radius:14px;
  background:var(--grad-violet);color:#fff;
  font-family:var(--mono);font-size:15px;font-weight:700;
  margin-bottom:14px;
}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-2);margin-bottom:12px}
.step li{
  position:relative;padding-left:18px;
  font-size:14px;color:var(--ink-2);margin-bottom:6px;
}
.step li::before{
  content:"";position:absolute;left:0;top:10px;
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}

/* ---------- compare panel ---------- */
.compare{
  background:var(--panel);
  border:1px solid var(--line-dark);
  border-radius:var(--r-lg);
  padding:28px 20px;
  color:#fff;
}
@media (min-width:1024px){ .compare{padding:44px 48px} }
.compare h2{color:#fff;font-size:clamp(22px,3.2vw,32px);letter-spacing:-.01em}
.compare .lead{color:rgba(255,255,255,.68);font-size:14px;margin:10px 0 26px}
.duel{display:grid;gap:16px}
@media (min-width:768px){ .duel{grid-template-columns:1fr auto 1fr;align-items:center;gap:20px} }
.duel-card{
  background:#1F1A2B;
  border:1px solid var(--line-dark);
  border-radius:20px;
  padding:22px;
  transition:border-color .25s ease,transform .25s ease;
}
.duel-card:hover{transform:translateY(-3px)}
.duel-card.is-win{
  border-color:rgba(255,90,43,.6);
  box-shadow:0 20px 48px rgba(255,90,43,.16);
}
.duel-card h3{color:#fff;font-size:18px}
.duel-card .sub{font-size:13px;color:rgba(255,255,255,.55);margin:6px 0 14px}
.duel-card li{
  display:flex;gap:10px;
  font-size:14px;color:rgba(255,255,255,.78);
  padding:10px 0;border-top:1px solid var(--line-dark);
}
.duel-card li:first-child{border-top:0}
.duel-card li i{margin-top:5px;font-size:12px;color:var(--alert)}
.duel-card.is-win li i{color:var(--mint)}
.duel-vs{
  display:grid;place-items:center;
  width:56px;height:56px;margin:0 auto;
  border-radius:var(--r-pill);
  background:var(--grad);color:#fff;
  font-family:var(--mono);font-weight:800;font-size:14px;
}

/* ---------- stats ---------- */
.stat{
  height:100%;
  text-align:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  padding:22px 16px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.stat:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.stat .num{
  display:block;
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-weight:800;font-size:clamp(24px,3.4vw,32px);
  color:var(--brand);line-height:1.2;
}
.stat--mint .num{color:var(--mint)}
.stat--violet .num{color:var(--violet)}
.stat span{display:block;font-size:13px;color:var(--ink-3);margin-top:6px}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:880px}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:12px 20px;
  text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);
}
.faq-icon{
  flex:0 0 auto;
  width:32px;height:32px;border-radius:var(--r-pill);
  background:var(--alt);color:var(--brand);
  display:grid;place-items:center;font-size:13px;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.faq-item.is-open .faq-icon{background:var(--grad);color:#fff;transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-item.is-open .faq-a{max-height:360px}
.faq-a-inner{
  position:relative;
  padding:18px 20px 20px;
  font-size:15px;color:var(--ink-2);
  border-top:1px solid var(--line);
}
.faq-a-inner::after{
  content:"";position:absolute;top:-1px;left:20px;
  width:56px;height:2px;border-radius:2px;background:var(--grad);
}
.faq-a-inner p:last-child{margin-bottom:0}

/* ---------- CTA panel ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  display:grid;gap:24px;
  background:var(--panel);
  border:1px solid var(--line-dark);
  border-radius:var(--r-lg);
  padding:32px 22px;
}
@media (min-width:1024px){
  .cta-panel{grid-template-columns:1fr auto;align-items:center;padding:48px 56px}
}
.cta-panel h2{color:#fff;font-size:clamp(22px,3.2vw,32px);letter-spacing:-.01em}
.cta-panel p{color:rgba(255,255,255,.7);font-size:15px;margin:10px 0 0}
.cta-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.cta-badges .badge{background:rgba(255,255,255,.08);border-color:var(--line-dark);color:rgba(255,255,255,.86)}
.cta-badges .badge b{color:var(--mint)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{margin-top:var(--sec-y);background:#fff;border-top:1px solid var(--line)}
.site-footer::before{content:"";display:block;height:3px;background:var(--grad)}
.footer-grid{
  display:grid;gap:28px;
  grid-template-columns:1fr;
  padding:48px 0 20px;
}
@media (min-width:768px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr} }
.footer-brand p{font-size:14px;color:var(--ink-2);margin:14px 0 0;max-width:300px}
.footer-col h4{font-size:15px;margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--ink-2);transition:color .2s ease}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;
  padding:18px 0 28px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}

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

/* roulang page: category3 */
:root{
  --brand:#FF5A2B;--brand-2:#FF8A1F;--brand-soft:rgba(255,90,43,.1);
  --purple:#6A3DF0;--purple-2:#A855F7;--purple-soft:rgba(106,61,240,.1);
  --mint:#12D18E;--mint-soft:rgba(18,209,142,.1);
  --warn:#FF3B6B;
  --bg:#FFF7F2;--bg-alt:#FDF1E9;--card:#FFFFFF;--dark:#17131F;--dark-2:#221B2E;--dark-line:#2A2438;
  --text:#1B1622;--muted:#5B5468;--faint:#8B8496;--line:#F0E4DC;
  --grad:linear-gradient(118deg,#FF5A2B 0%,#FF8A1F 100%);
  --grad-purple:linear-gradient(118deg,#6A3DF0 0%,#A855F7 100%);
  --r-xs:10px;--r-sm:12px;--r-md:16px;--r-lg:24px;--r-xl:28px;--r-pill:999px;
  --sh-1:0 2px 8px rgba(27,22,34,.06);
  --sh-2:0 12px 28px rgba(27,22,34,.12);
  --sh-3:0 20px 48px rgba(106,61,240,.18);
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
p{text-align:left}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(255,90,43,.55);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px;max-width:1240px}}
@media(min-width:1440px){.container{max-width:1320px}}
.section{padding:44px 0}
@media(min-width:1024px){.section{padding:72px 0}}
.section.alt{background:var(--bg-alt)}
.sec-head{max-width:760px;margin-bottom:24px}
.sec-head h2{font-size:clamp(22px,3.6vw,32px);font-weight:800;line-height:1.25;letter-spacing:-.01em}
.sec-head p{margin-top:8px;font-size:14px;color:var(--muted)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:var(--r-pill);background:var(--brand-soft);color:#C43A12;font-size:12px;font-weight:700;letter-spacing:.02em;border:1px solid rgba(255,90,43,.2)}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:8px 0 0;background:linear-gradient(180deg,rgba(255,247,242,.97),rgba(255,247,242,.78) 72%,rgba(255,247,242,0));backdrop-filter:blur(10px)}
.nav-panel{display:flex;align-items:center;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:10px 14px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,padding .25s ease}
.site-header.is-stuck .nav-panel{box-shadow:var(--sh-2);padding:7px 14px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;display:grid;place-items:center;font-size:16px;box-shadow:0 8px 18px rgba(255,90,43,.28);flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-text em{font-style:normal;font-size:11px;color:var(--faint);letter-spacing:.12em}
.nav-cards{display:none;gap:8px;margin-left:auto}
.nav-card{display:flex;align-items:center;gap:6px;padding:8px 13px;min-height:44px;border-radius:14px;background:var(--bg-alt);border:1px solid transparent;font-size:14px;font-weight:600;color:var(--muted);transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease}
.nav-card i{color:var(--brand);font-size:13px}
.nav-card:hover{background:#fff;border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.nav-card.is-active{background:var(--grad);color:#fff;box-shadow:0 8px 18px rgba(255,90,43,.28)}
.nav-card.is-active i{color:#fff}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-right .badge{display:none}
@media(min-width:1024px){
  .nav-cards{display:flex}
  .nav-right{margin-left:8px}
  .nav-right .badge{display:inline-flex}
  .nav-toggle{display:none}
}
.nav-toggle{width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--text);display:grid;place-items:center;font-size:17px;cursor:pointer;transition:.2s}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
/* ---------- drawer ---------- */
.nav-drawer{position:fixed;inset:0;z-index:120;background:rgba(23,19,31,.5);opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease}
.nav-drawer.is-open{opacity:1;visibility:visible}
.nav-drawer-inner{position:absolute;inset:8px;background:var(--bg);border-radius:24px;padding:16px;overflow:auto;display:flex;flex-direction:column;gap:16px;transform:translateY(14px);transition:transform .24s ease}
.nav-drawer.is-open .nav-drawer-inner{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-head strong{font-size:17px;font-weight:800}
.drawer-close{width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;font-size:18px;cursor:pointer}
.drawer-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.drawer-card{display:flex;flex-direction:column;gap:8px;padding:16px;border-radius:16px;background:#fff;border:1px solid var(--line);font-weight:700;font-size:15px}
.drawer-card i{color:var(--brand);font-size:18px}
.drawer-card.is-active{background:var(--grad);color:#fff;border-color:transparent}
.drawer-card.is-active i{color:#fff}
.drawer-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
/* ---------- buttons & badges ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:var(--r-pill);font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,filter .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,90,43,.28)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px)}
.btn-primary:active{filter:brightness(.94) saturate(.92);transform:translateY(0)}
.btn-ghost{background:#fff;border-color:#E8DAD0;color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;border:1px solid var(--line);background:#fff;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.badge b,.badge strong{font-family:var(--mono);font-weight:700;font-size:13px}
.badge-mint{color:#0C7A55;border-color:rgba(18,209,142,.35);background:var(--mint-soft)}
.badge-mint b{color:#0B9A6B}
.badge-orange{color:#C43A12;border-color:rgba(255,90,43,.3);background:var(--brand-soft)}
.badge-orange b{color:var(--brand)}
.badge-purple{color:#5A2CD0;border-color:rgba(106,61,240,.28);background:var(--purple-soft)}
.badge-purple b{color:var(--purple)}
.badge-dark{background:rgba(255,255,255,.08);border-color:var(--dark-line);color:#EFE9F5}
.badge-dark b{color:var(--mint)}
/* ---------- hero ---------- */
.page-hero{padding:40px 0 8px}
@media(min-width:1024px){.page-hero{padding:56px 0 16px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:44px}}
.page-hero h1{font-size:clamp(28px,5.6vw,46px);font-weight:800;line-height:1.16;letter-spacing:-.02em;margin:16px 0 12px}
.page-hero .hero-sub{font-size:16px;color:var(--muted);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 18px}
.hero-trust{display:flex;flex-wrap:wrap;gap:8px}
.hud{position:relative;border-radius:var(--r-xl);overflow:hidden;background:var(--dark);border:1px solid var(--dark-line);box-shadow:var(--sh-3);min-height:360px;display:flex;flex-direction:column;justify-content:flex-end;padding:22px;color:#fff}
.hud-bg{position:absolute;inset:0;background-image:linear-gradient(180deg,rgba(23,19,31,.45) 0%,rgba(23,19,31,.9) 62%,rgba(23,19,31,.97) 100%),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.9}
.hud>*:not(.hud-bg){position:relative;z-index:1}
.hud-top{position:absolute;top:20px;left:22px;right:22px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;z-index:1}
@media(min-width:1024px){.hud{min-height:440px}}
.hud h2{font-size:20px;font-weight:800;margin-bottom:4px}
.hud .hud-note{font-size:13px;color:#C9C0D6;margin-bottom:14px}
.hud-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.hud-stat{background:rgba(255,255,255,.07);border:1px solid var(--dark-line);border-radius:var(--r-md);padding:12px 10px;text-align:center}
.hud-stat b{display:block;font-family:var(--mono);font-size:20px;font-weight:800;color:var(--mint);font-variant-numeric:tabular-nums}
.hud-stat span{font-size:12px;color:#B9B0C6}
.hud-divider{height:2px;border-radius:2px;background:var(--grad);margin:14px 0 0;opacity:.85}
/* ---------- cards ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#E9DAD0}
.card-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .corner{position:absolute;top:12px;left:12px}
.card-media .corner-r{position:absolute;top:12px;right:12px;background:rgba(23,19,31,.72);color:#fff;border-color:transparent}
.card-body{padding:16px}
.card-body h3{font-size:18px;font-weight:700;line-height:1.4;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
.tagline{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:12px;padding:4px 10px;border-radius:var(--r-pill);background:var(--bg-alt);color:var(--muted);font-weight:600}
.tag-purple{background:var(--purple-soft);color:var(--purple)}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--brand);transition:transform .2s ease}
.arrow-link:hover{transform:translateX(4px)}
/* ---------- rank layout ---------- */
.rank-layout{margin-top:4px}
.rank-rows{display:flex;flex-direction:column;gap:12px}
.rank-row{display:grid;grid-template-columns:72px 1fr;gap:14px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:16px;transition:background .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.rank-row:hover{background:var(--bg-alt);transform:translateX(4px);box-shadow:var(--sh-1);border-color:#E9DAD0}
.rank-label{display:flex;flex-direction:column;align-items:center;gap:8px}
.rank-no{font-family:var(--mono);font-size:26px;font-weight:800;line-height:1;color:var(--purple);font-variant-numeric:tabular-nums}
.rank-type{font-size:12px;font-weight:700;padding:3px 9px;border-radius:var(--r-pill);background:var(--purple-soft);color:var(--purple);white-space:nowrap}
.rank-main h3{font-size:19px;font-weight:700;line-height:1.4}
.rank-main>p{font-size:14px;color:var(--muted);margin-top:6px}
.rank-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:12px}
.rank-meta .arrow-link{margin-left:auto}
.side-card{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1)}
.side-card h3{font-size:17px;font-weight:800;margin-bottom:6px}
.side-card .side-note{font-size:13px;color:var(--faint);margin-bottom:14px}
.side-list li+li{margin-top:8px}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:44px;padding:10px 12px;border-radius:var(--r-sm);background:var(--bg-alt);font-size:14px;font-weight:600;transition:.2s}
.side-list a i{color:var(--brand);font-size:12px}
.side-list a:hover{background:#fff;box-shadow:var(--sh-1);color:var(--brand)}
.side-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
/* ---------- metrics ---------- */
.metric-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:640px){.metric-grid{grid-template-columns:repeat(3,1fr)}}
.metric{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;transition:.24s}
.metric:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.metric b{display:block;font-family:var(--mono);font-size:30px;font-weight:800;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums}
.metric h3{font-size:17px;font-weight:700;margin:10px 0 6px}
.metric p{font-size:14px;color:var(--muted)}
.badge-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;padding:16px;border-radius:var(--r-lg);background:var(--dark);border:1px solid var(--dark-line)}
/* ---------- reviews ---------- */
.review-row{display:flex;gap:16px;overflow-x:auto;padding:4px 4px 12px;scroll-snap-type:x mandatory}
.review-card{flex:0 0 78%;scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px;box-shadow:var(--sh-1)}
@media(min-width:640px){.review-card{flex:0 0 calc(50% - 8px)}}
@media(min-width:1024px){.review-row{overflow:visible;display:grid;grid-template-columns:repeat(3,1fr)}.review-card{flex:auto}}
.review-head{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.avatar{width:42px;height:42px;border-radius:50%;overflow:hidden;flex:0 0 auto;background:var(--bg-alt)}
.avatar img{width:100%;height:100%;object-fit:cover}
.review-head strong{display:block;font-size:15px;font-weight:700}
.stars{color:#FFB020;font-size:12px;letter-spacing:2px}
.review-card p{font-size:14px;color:var(--muted)}
.review-time{display:block;margin-top:10px;font-size:12px;color:var(--faint)}
/* ---------- dark cta ---------- */
.dark-cta{background:var(--dark);border:1px solid var(--dark-line);border-radius:var(--r-lg);padding:28px;color:#fff;display:grid;gap:20px;align-items:center}
@media(min-width:1024px){.dark-cta{grid-template-columns:1fr auto;padding:36px 40px}}
.dark-cta h2{font-size:clamp(22px,3.6vw,30px);font-weight:800;letter-spacing:-.01em}
.dark-cta .dark-desc{font-size:14px;color:#C0B7CE;margin-top:8px}
.dark-cta-right{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
@media(min-width:1024px){.dark-cta-right{align-items:flex-end}}
.dark-badges{display:flex;flex-wrap:wrap;gap:10px}
.grad-line{height:2px;border-radius:2px;background:var(--grad)}
/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease}
.faq-item:hover{box-shadow:var(--sh-1)}
.faq-item.is-open{border-color:#E9DAD0;box-shadow:var(--sh-1)}
.faq-q{width:100%;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 18px;background:transparent;border:0;text-align:left;font-size:17px;font-weight:700;cursor:pointer;color:var(--text)}
.faq-icon{width:32px;height:32px;flex:0 0 auto;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;font-size:14px;color:var(--brand);transition:.22s}
.faq-item.is-open .faq-icon{background:var(--grad);color:#fff;border-color:transparent}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a-inner{padding:0 18px 18px;font-size:15px;color:var(--muted);border-top:1px solid transparent;background-image:var(--grad);background-size:100% 1px;background-repeat:no-repeat;background-position:top left}
.faq-a-inner p{padding-top:14px}
/* ---------- form ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);max-width:900px}
.sub-form{display:grid;gap:16px;margin-top:16px}
@media(min-width:768px){.sub-form{grid-template-columns:1fr 1fr auto;align-items:start}}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;font-weight:700;color:var(--muted)}
.field input,.field select{height:48px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--bg);padding:0 14px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}
.field input:focus,.field select:focus{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,90,43,.18);outline:none}
.field-error{font-size:13px;color:var(--warn);margin-top:2px}
.form-note{font-size:13px;color:#0C7A55;background:var(--mint-soft);border:1px solid rgba(18,209,142,.35);border-radius:var(--r-sm);padding:10px 14px;grid-column:1/-1}
.sub-form .btn{width:100%;min-height:48px}
@media(min-width:768px){.sub-form .btn{width:auto;min-width:150px}}
/* ---------- footer ---------- */
.site-footer{margin-top:32px;background:#fff;border-top:1px solid var(--line);position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:24px;padding:40px 0 24px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:56px 0 32px}}
.footer-brand .brand{margin-bottom:12px}
.footer-brand p{font-size:14px;color:var(--muted);max-width:280px}
.footer-col h4{font-size:15px;font-weight:800;margin-bottom:12px}
.footer-col li+li{margin-top:8px}
.footer-col a{font-size:14px;color:var(--muted);min-height:32px;display:inline-flex;align-items:center;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--brand);transform:translateX(3px)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;padding:16px 0 28px;border-top:1px solid var(--line);font-size:13px;color:var(--faint)}
/* ---------- motion ---------- */
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}
@media(max-width:639px){
  .brand-text strong{font-size:16px}
  .brand-text em{display:none}
  .hud-stats{grid-template-columns:1fr 1fr}
  .rank-row{grid-template-columns:56px 1fr;padding:14px}
  .rank-no{font-size:22px}
}