/* roulang page: index */
:root{
  --color-bg:#F5F4F1;
  --color-surface:#FFFFFF;
  --color-surface-muted:#ECE9E3;
  --color-ink:#151617;
  --color-muted:#60666C;
  --color-primary:#E85711;
  --color-primary-strong:#C9440A;
  --color-primary-soft:#FCE9DF;
  --color-line:#DCD8D0;
  --color-success:#147D5A;
  --shadow-card:0 2px 6px rgba(22,20,18,.04), 0 16px 40px -24px rgba(22,20,18,.22);
  --shadow-float:0 4px 12px rgba(22,20,18,.06), 0 28px 64px -20px rgba(22,20,18,.28);
  --radius:20px;
  --radius-sm:10px;
  --container-max:1320px;
  --section-space:110px;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--color-bg);
  color:var(--color-ink);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:var(--color-ink);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--color-primary)}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:var(--container-max);margin:0 auto;padding:0 24px;width:100%}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;color:var(--color-primary);
  font-size:13px;font-weight:700;letter-spacing:.08em;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--color-primary)}
.section{padding:var(--section-space) 0;position:relative}
.section.alt{background:var(--color-surface)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:44px;
}
.section-head h2{
  font-size:clamp(30px,3.8vw,46px);
  line-height:1.18;font-weight:800;letter-spacing:-.02em;max-width:20ch;
}
.section-head .lead{color:var(--color-muted);max-width:52ch;font-size:16px}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--color-ink);
  border-bottom:1px solid transparent;padding-bottom:2px;font-size:15px;
}
.link-arrow:hover{color:var(--color-primary);border-color:var(--color-primary)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:50px;padding:0 28px;border-radius:4px;
  font-weight:600;line-height:1;border:2px solid transparent;cursor:pointer;
  transition:background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--color-primary);border-color:var(--color-primary);color:#fff}
.btn-primary:hover{
  background:var(--color-primary-strong);border-color:var(--color-primary-strong);color:#fff;
  transform:translateY(-2px);box-shadow:0 12px 24px rgba(232,87,17,.22);
}
.btn-outline{background:var(--color-surface);border-color:var(--color-line);color:var(--color-ink)}
.btn-outline:hover{border-color:var(--color-ink);background:var(--color-bg);color:var(--color-ink);transform:translateY(-2px)}
.btn-light{background:#fff;border-color:#fff;color:var(--color-ink)}
.btn-light:hover{background:var(--color-bg);border-color:var(--color-bg);color:var(--color-ink);transform:translateY(-2px);box-shadow:var(--shadow-float)}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px}
.btn-lg{min-height:56px;padding:0 38px;font-size:17px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);
  border-bottom:1px solid rgba(220,216,208,.7);
  transition:box-shadow .3s var(--ease),background-color .3s var(--ease);
}
.site-header.scrolled{background:#fff;border-bottom-color:var(--color-line);box-shadow:0 8px 24px rgba(22,20,18,.05)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-badge{
  width:38px;height:38px;border-radius:12px;background:var(--color-primary);color:#fff;
  display:grid;place-items:center;font-size:20px;font-weight:800;
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.02em;line-height:1.1}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--color-muted);letter-spacing:.18em;margin-top:2px}
.site-nav{display:flex;gap:4px;align-items:center}
.site-nav .nav-link{
  display:inline-block;position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:#3A3D40;
}
.site-nav .nav-link:hover{color:var(--color-primary)}
.site-nav .nav-link.active{color:var(--color-ink)}
.site-nav .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:4px;
  border-radius:999px;background:var(--color-primary);
}
.header-actions{display:flex;align-items:center;gap:16px}
.burger{
  display:none;width:44px;height:44px;border-radius:8px;border:1px solid var(--color-line);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.burger span{display:block;width:20px;height:2px;background:var(--color-ink);position:relative;transition:background .2s}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--color-ink);transition:transform .25s var(--ease);
}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* Mobile drawer */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(18,20,22,.45);z-index:220;opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s;
}
.drawer-backdrop.visible{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(420px,88vw);background:var(--color-surface);z-index:230;
  transform:translateX(100%);transition:transform .28s var(--ease);
  padding:24px 28px 36px;display:flex;flex-direction:column;box-shadow:var(--shadow-float);
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer-close{
  width:40px;height:40px;border-radius:8px;border:1px solid var(--color-line);background:#fff;
  font-size:20px;color:var(--color-ink);cursor:pointer;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-link{
  font-size:28px;font-weight:700;padding:12px 0;border-bottom:1px solid var(--color-line);
  display:flex;align-items:center;gap:14px;color:var(--color-ink);
}
.drawer-link .fa-solid{font-size:18px;color:var(--color-primary)}
.drawer-link:hover{color:var(--color-primary)}
.drawer-cta{margin-top:auto;width:100%;border-radius:6px}
@media (max-width:1023px){
  .site-nav{display:none}
  .burger{display:inline-flex}
  .header-cta{display:none}
}

/* Hero */
.hero{
  position:relative;padding:96px 0 88px;overflow:hidden;border-bottom:1px solid var(--color-line);
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    linear-gradient(90deg,rgba(245,244,241,.96) 0%,rgba(245,244,241,.88) 48%,rgba(245,244,241,.34) 100%),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat var(--color-surface-muted);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(245,244,241,0) 70%,var(--color-bg) 100%);
}
.hero-inner{
  position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:var(--color-ink);color:#fff;
  border-radius:999px;padding:7px 15px;font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:#F3A87B}
.hero h1{
  font-size:clamp(44px,7vw,82px);
  font-weight:900;line-height:1.05;letter-spacing:-.025em;margin-bottom:24px;
}
.hero-subtitle{font-size:18px;color:var(--color-muted);max-width:46ch;line-height:1.8;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.platform-line{display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;font-size:14px;color:var(--color-muted)}
.platform-line i{color:var(--color-success);margin-right:6px}
.hero-visual{position:relative}
.hero-main-card{
  position:relative;border-radius:26px;overflow:hidden;box-shadow:var(--shadow-float);
  background:var(--color-surface-muted);border:1px solid rgba(255,255,255,.6);transform:rotate(1.4deg);
}
.hero-main-card img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.hero-float-card{
  position:absolute;left:-22px;bottom:24px;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.7);border-radius:16px;padding:14px 18px;box-shadow:var(--shadow-card);
  display:flex;gap:12px;align-items:center;max-width:280px;
}
.hero-float-card .float-icon{
  width:42px;height:42px;border-radius:10px;background:var(--color-primary-soft);color:var(--color-primary);
  display:grid;place-items:center;font-size:18px;
}
.hero-float-card strong{font-size:15px;display:block;line-height:1.3}
.hero-float-card span{font-size:12px;color:var(--color-muted)}
@media (max-width:1023px){
  .hero{padding:68px 0 60px}
  .hero-inner{grid-template-columns:1fr;gap:38px}
  .hero h1{font-size:clamp(38px,9vw,58px)}
  .hero-float-card{left:auto;right:8px;bottom:16px}
}
@media (max-width:640px){
  .hero{padding:52px 0 48px}
  .hero-subtitle{font-size:16px}
  .hero-actions .btn{width:calc(50% - 7px);min-width:0;padding:0 10px}
  .platform-line{gap:8px 16px}
}

/* Trust bar */
.trust-bar{background:var(--color-surface);border-bottom:1px solid var(--color-line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{
  display:flex;gap:14px;align-items:flex-start;padding:26px 22px;
  border-left:1px solid var(--color-line);
}
.trust-item:first-child{border-left:none}
.trust-item i{color:var(--color-primary);font-size:20px;margin-top:4px;width:24px;text-align:center}
.trust-item strong{display:block;font-size:16px;font-weight:700}
.trust-item span{font-size:13px;color:var(--color-muted);line-height:1.5}
@media (max-width:1023px){
  .trust-grid{grid-template-columns:1fr 1fr}
  .trust-item{border-left:none;border-bottom:1px solid var(--color-line)}
}
@media (max-width:640px){
  .trust-grid{grid-template-columns:1fr}
}

/* Features / advantages */
.adv-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:start}
.adv-intro h2{font-size:clamp(30px,3.6vw,44px);line-height:1.2;font-weight:800;margin:14px 0 20px;letter-spacing:-.02em}
.adv-intro p{color:var(--color-muted);font-size:16px;line-height:1.85;margin-bottom:24px;max-width:46ch}
.adv-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.adv-item{
  background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-sm);
  padding:26px;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  position:relative;
}
.adv-item:hover{border-color:var(--color-primary);transform:translateY(-4px);box-shadow:var(--shadow-card)}
.adv-num{position:absolute;top:20px;right:20px;font-size:13px;font-weight:800;color:var(--color-line)}
.adv-icon{
  width:44px;height:44px;border-radius:10px;background:var(--color-primary-soft);color:var(--color-primary);
  display:grid;place-items:center;font-size:18px;margin-bottom:18px;
}
.adv-item h3{font-size:17px;font-weight:700;margin-bottom:8px}
.adv-item p{font-size:14px;color:var(--color-muted);line-height:1.7}
@media (max-width:1023px){
  .adv-grid{grid-template-columns:1fr;gap:40px}
}
@media (max-width:600px){
  .adv-list{grid-template-columns:1fr}
}

/* Hot apps */
.app-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.app-card{
  background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius);
  overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease);
  display:flex;flex-direction:column;
}
.app-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-float)}
.app-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--color-surface-muted)}
.app-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.app-card:hover .app-cover img{transform:scale(1.04)}
.app-cover .cover-tag{
  position:absolute;top:12px;left:12px;background:rgba(255,255,255,.92);backdrop-filter:blur(4px);
  font-size:12px;font-weight:700;color:var(--color-primary);border-radius:999px;padding:5px 12px;box-shadow:0 2px 10px rgba(0,0,0,.06);
}
.app-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.app-body h3{font-size:20px;font-weight:800;line-height:1.35;margin-bottom:8px}
.app-body .desc{
  font-size:14px;color:var(--color-muted);line-height:1.75;margin-bottom:16px;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.app-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:13px;color:var(--color-muted);border-top:1px dashed var(--color-line);padding-top:14px;margin-bottom:16px}
.app-meta span{display:inline-flex;align-items:center;gap:6px}
.app-meta .fa-solid{color:var(--color-primary)}
.app-download{
  display:inline-flex;align-items:center;justify-content:space-between;background:var(--color-primary-soft);
  color:var(--color-primary);font-weight:700;font-size:15px;padding:11px 16px;border-radius:6px;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);gap:8px;
}
.app-download:hover{background:var(--color-primary);color:#fff}
.app-download .fa-solid{transition:transform .25s}
.app-download:hover .fa-solid{transform:translateX(3px)}
@media (max-width:1100px){
  .app-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:540px){
  .app-grid{grid-template-columns:1fr}
}

/* Game showcase */
.game-showcase{
  background:
    linear-gradient(rgba(20,21,22,.92),rgba(20,21,22,.85)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat var(--color-ink);
  color:#fff;
}
.game-show{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
}
.game-show h2{
  font-size:clamp(30px,3.8vw,48px);line-height:1.2;letter-spacing:-.02em;
  margin:14px 0 20px;color:#fff;
}
.game-show p{color:rgba(255,255,255,.7);font-size:16px;line-height:1.85;margin-bottom:28px;max-width:48ch}
.game-show .eyebrow{color:#F3A87B}
.game-show .eyebrow::before{background:#F3A87B}
.game-chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.game-chip{
  border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:7px 16px;
  font-size:14px;color:rgba(255,255,255,.86);background:rgba(255,255,255,.04);
}
.game-chip i{margin-right:6px;color:#F3A87B}
.game-show-list{display:grid;gap:18px}
.game-feature-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:16px;
  padding:24px;display:flex;gap:18px;align-items:flex-start;transition:background .3s,transform .3s,border-color .3s;
}
.game-feature-card:hover{background:rgba(255,255,255,.1);transform:translateY(-3px);border-color:rgba(255,255,255,.22)}
.game-feature-card .f-icon{
  flex:none;width:42px;height:42px;border-radius:10px;background:var(--color-primary);
  color:#fff;display:grid;place-items:center;font-size:16px;
}
.game-feature-card h3{font-size:17px;font-weight:700;color:#fff;margin-bottom:6px}
.game-feature-card p{font-size:14px;color:rgba(255,255,255,.65);line-height:1.65;margin:0}
@media (max-width:900px){
  .game-show{grid-template-columns:1fr;gap:36px}
}

/* News */
.news-layout{display:grid;grid-template-columns:1fr 1.02fr;gap:40px;align-items:start}
.news-feature{
  background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius);
  overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-card)}
.news-feature .nf-cover{aspect-ratio:16/9;overflow:hidden;background:var(--color-surface-muted)}
.news-feature .nf-cover img{width:100%;height:100%;object-fit:cover}
.news-feature .nf-body{padding:28px}
.news-feature .nf-tag{
  display:inline-block;font-size:12px;font-weight:700;color:var(--color-primary);
  background:var(--color-primary-soft);padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.news-feature h3{font-size:23px;font-weight:800;margin-bottom:12px;line-height:1.45}
.news-feature p{color:var(--color-muted);font-size:15px;line-height:1.75;margin-bottom:20px}
.news-feature .nf-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--color-muted)}
.news-list{
  background:var(--color-surface);border-radius:var(--radius);border:1px solid var(--color-line);
  padding:12px 24px;min-height:300px;
}
.news-row{
  display:flex;align-items:center;gap:16px;padding:17px 0;border-bottom:1px solid var(--color-line);
}
.news-row:last-child{border-bottom:none}
.news-row:hover .news-title{color:var(--color-primary)}
.news-cat{
  flex:none;min-width:72px;text-align:center;font-size:12px;font-weight:700;color:var(--color-muted);
  background:var(--color-surface-muted);border-radius:999px;padding:4px 10px;
}
.news-title{
  flex:1;font-size:15px;font-weight:600;line-height:1.6;overflow:hidden;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;
}
.news-date{flex:none;font-size:13px;color:var(--color-muted)}
.empty-state{
  padding:70px 20px;display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;
  color:var(--color-muted);font-size:15px;
}
.empty-state i{font-size:28px;color:var(--color-line);margin-bottom:6px}
@media (max-width:900px){
  .news-layout{grid-template-columns:1fr;gap:32px}
}
@media (max-width:520px){
  .news-row{flex-wrap:wrap;gap:6px 12px}
  .news-title{width:100%;-webkit-line-clamp:2}
  .news-date{font-size:12px}
}

/* Testimonials */
.testimonial-section{background:var(--color-surface)}
.slider-wrap{position:relative}
.slider-track{
  display:grid;grid-auto-columns:minmax(380px,470px);grid-auto-flow:column;gap:20px;
  overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 2px 22px;scrollbar-width:none;
}
.slider-track::-webkit-scrollbar{display:none}
.t-card{
  background:var(--color-bg);border:1px solid var(--color-line);border-radius:var(--radius);
  padding:30px;scroll-snap-align:start;display:flex;flex-direction:column;
  min-height:260px;transition:box-shadow .3s,transform .3s;
}
.t-card:hover{box-shadow:var(--shadow-card);transform:translateY(-3px)}
.t-quote{color:var(--color-primary);font-size:28px;margin-bottom:16px}
.t-text{color:#35393D;font-size:15px;line-height:1.8;flex:1}
.t-user{display:flex;align-items:center;gap:12px;margin-top:22px}
.t-avatar{
  width:42px;height:42px;border-radius:50%;background:var(--color-primary);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:15px;
}
.t-user strong{display:block;font-size:14px}
.t-user span{font-size:12px;color:var(--color-muted)}
@media (max-width:520px){
  .slider-track{grid-auto-columns:minmax(270px,88vw)}
  .t-card{padding:22px}
}

/* FAQ */
.faq-section .faq-wrap{max-width:880px;margin:0 auto}
.faq-list{border-top:1px solid var(--color-line)}
.faq-item{border-bottom:1px solid var(--color-line)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:24px 4px;cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary h3{
  font-size:17px;font-weight:700;line-height:1.5;
}
.faq-item .faq-icon{
  flex:none;width:28px;height:28px;border-radius:50%;border:1px solid var(--color-line);
  display:grid;place-items:center;color:var(--color-primary);font-size:16px;font-weight:600;
  transition:transform .3s var(--ease),background .3s,border-color .3s,color .3s;
}
.faq-item[open] .faq-icon{background:var(--color-primary);border-color:var(--color-primary);color:#fff;transform:rotate(45deg)}
.faq-answer{padding:0 4px 26px;color:var(--color-muted);line-height:1.8;font-size:15px;max-width:70ch}
.faq-cta{margin-top:40px;text-align:center}

/* CTA */
.cta-band{background:var(--color-ink);padding:0;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.22;
  background:url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
}
.cta-box{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;
  padding:76px 0;color:#fff;
}
.cta-box h2{
  font-size:clamp(30px,4.6vw,54px);font-weight:900;line-height:1.15;letter-spacing:-.02em;color:#fff;margin-bottom:14px;
}
.cta-box p{color:rgba(255,255,255,.68);font-size:16px;max-width:40ch}
.cta-action{flex:none}
@media (max-width:800px){
  .cta-box{flex-direction:column;align-items:flex-start;padding:60px 0}
  .cta-action .btn{width:100%}
}

/* Footer */
.site-footer{background:#111213;color:#A2A6AB;font-size:14px}
.footer-top{
  padding:58px 0 20px;display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:40px;
}
.footer-brand .brand{color:#fff}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text small{color:#8B8F94}
.footer-desc{
  color:#94989E;line-height:1.7;font-size:13px;margin-top:16px;max-width:34ch;
}
.footer-col{display:flex;flex-direction:column;gap:10px}
.footer-col h4{color:#F4F5F6;font-size:15px;margin-bottom:8px;font-weight:700}
.footer-col a{color:#A2A6AB;font-size:14px;transition:color .2s}
.footer-col a:hover{color:var(--color-primary)}
.footer-col a .fa-solid{margin-right:6px;font-size:12px;opacity:.7}
.footer-bar{
  border-top:1px solid #2A2B2D;padding:24px 0 30px;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:10px;color:#83878B;font-size:13px;
}
.footer-bar a{color:#83878B}
.footer-bar a:hover{color:#fff}
.back-top{
  display:inline-flex;align-items:center;gap:6px;color:#fff;background:#242527;
  padding:8px 14px;border-radius:999px;font-size:13px;
}
.back-top:hover{background:var(--color-primary);color:#fff}
@media (max-width:900px){
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .footer-top{grid-template-columns:1fr;gap:28px}
}

/* Responsive common */
@media (max-width:1023px){
  :root{--section-space:76px}
}
@media (max-width:640px){
  :root{--section-space:54px}
  .container{padding:0 20px}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:30px}
  .section-head h2{font-size:28px}
  .header-inner{height:60px}
}

/* roulang page: category1 */
:root{
    --color-bg:#F5F4F1;
    --color-surface:#FFFFFF;
    --color-surface-muted:#ECE9E3;
    --color-ink:#151617;
    --color-muted:#60666C;
    --color-primary:#E85711;
    --color-primary-strong:#C9440A;
    --color-primary-soft:#FCE9DF;
    --color-line:#DCD8D0;
    --color-success:#147D5A;
    --color-dark:#111213;
    --shadow-card:0 2px 6px rgba(22,20,18,.04),0 16px 40px -24px rgba(22,20,18,.22);
    --shadow-float:0 4px 12px rgba(22,20,18,.06),0 28px 64px -20px rgba(22,20,18,.28);
    --radius-lg:20px;
    --radius-md:14px;
    --radius-sm:8px;
    --ease:cubic-bezier(.2,.7,.2,1);
  }
  *{
    box-sizing:border-box;
    margin:0;
    padding:0;
  }
  html{
    scroll-behavior:smooth;
  }
  body{
    background:var(--color-bg);
    color:var(--color-ink);
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{
    display:block;
    max-width:100%;
  }
  a{
    color:inherit;
    text-decoration:none;
    transition:color .25s var(--ease);
  }
  ul,ol{
    list-style:none;
  }
  button{
    font-family:inherit;
    border:none;
    background:none;
    cursor:pointer;
  }
  :focus-visible{
    outline:3px solid rgba(232,87,17,.32);
    outline-offset:2px;
    border-radius:2px;
  }
  a,button{
    -webkit-tap-highlight-color:transparent;
  }
  .container{
    width:100%;
    max-width:1280px;
    margin:0 auto;
    padding-left:24px;
    padding-right:24px;
  }
  .site-header{
    background:var(--color-surface);
    border-bottom:1px solid var(--color-line);
    position:sticky;
    top:0;
    z-index:100;
    transition:box-shadow .3s ease;
  }
  .site-header.scrolled{
    box-shadow:0 10px 30px -18px rgba(22,20,18,.3);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:72px;
    gap:16px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .brand-badge{
    width:38px;
    height:38px;
    border-radius:10px;
    background:var(--color-primary);
    color:#fff;
    font-weight:900;
    font-size:20px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    box-shadow:0 2px 6px rgba(232,87,17,.25);
  }
  .brand-text{
    font-size:19px;
    font-weight:800;
    color:var(--color-ink);
    letter-spacing:-.01em;
    line-height:1.1;
  }
  .brand-text small{
    display:block;
    font-size:10px;
    color:var(--color-muted);
    font-weight:600;
    letter-spacing:.12em;
    margin-top:2px;
  }
  .site-nav{
    display:flex;
    align-items:center;
    gap:6px;
  }
  .nav-link{
    position:relative;
    padding:10px 4px 8px;
    font-size:15px;
    font-weight:500;
    color:#3a3d40;
    margin:0 10px;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:0;
    bottom:-1px;
    width:0;
    height:3px;
    background:var(--color-primary);
    transition:width .3s var(--ease);
  }
  .nav-link:hover{
    color:var(--color-primary);
  }
  .nav-link.active{
    color:var(--color-ink);
    font-weight:700;
  }
  .nav-link.active::after{
    width:100%;
  }
  .header-actions{
    display:flex;
    align-items:center;
    gap:14px;
  }
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    border-radius:6px;
    font-weight:700;
    transition:all .25s var(--ease);
    text-align:center;
    white-space:nowrap;
    position:relative;
    overflow:hidden;
    font-size:16px;
  }
  .btn-primary{
    background:var(--color-primary);
    color:#fff;
    padding:14px 28px;
    box-shadow:0 4px 12px rgba(232,87,17,.22);
  }
  .btn-primary::before{
    content:"";
    width:64px;
    height:140%;
    position:absolute;
    top:-20%;
    left:-80px;
    background:linear-gradient(to right,rgba(255,255,255,0),rgba(255,255,255,.45),rgba(255,255,255,0));
    transform:skewX(-22deg);
    transition:left .5s var(--ease);
  }
  .btn-primary:hover{
    background:var(--color-primary-strong);
    transform:translateY(-2px);
    box-shadow:0 10px 22px -8px rgba(201,68,10,.4);
    color:#fff;
  }
  .btn-primary:hover::before{
    left:120%;
  }
  .btn-secondary{
    background:var(--color-surface);
    color:var(--color-ink);
    border:1px solid #d3cfc6;
    padding:13px 26px;
  }
  .btn-secondary:hover{
    border-color:var(--color-ink);
    background:#f2f0eb;
    transform:translateY(-2px);
    color:var(--color-ink);
  }
  .btn-sm{
    font-size:14px;
    padding:9px 16px;
  }
  .header-cta{
    min-width:98px;
    height:40px;
    padding:0 16px;
    border-radius:10px;
    background:var(--color-primary);
    color:#fff;
    font-size:14px;
    font-weight:700;
    display:inline-flex;
    align-items:center;
    justify-content:center;
  }
  .header-cta:hover{
    background:var(--color-primary-strong);
    transform:translateY(-1px);
    color:#fff;
  }
  .burger{
    display:none;
    width:44px;
    height:44px;
    border-radius:10px;
    position:relative;
  }
  .burger span,
  .burger span::before,
  .burger span::after{
    content:"";
    position:absolute;
    left:10px;
    width:24px;
    height:2px;
    background:var(--color-ink);
    border-radius:2px;
    transition:all .3s var(--ease);
  }
  .burger span{
    top:21px;
  }
  .burger span::before{
    top:-7px;
  }
  .burger span::after{
    top:7px;
  }
  .burger.open span{
    background:transparent;
  }
  .burger.open span::before{
    top:0;
    transform:rotate(45deg);
  }
  .burger.open span::after{
    top:0;
    transform:rotate(-45deg);
  }
  .mobile-nav{
    position:fixed;
    inset:0;
    background:var(--color-surface);
    z-index:150;
    padding:22px 24px 30px;
    display:flex;
    flex-direction:column;
    transform:translateX(100%);
    transition:transform .3s var(--ease);
    visibility:hidden;
  }
  .mobile-nav.open{
    transform:translateX(0);
    visibility:visible;
  }
  .mobile-nav-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding-bottom:10px;
    border-bottom:1px solid var(--color-line);
  }
  .mobile-nav-close{
    width:44px;
    height:44px;
    font-size:24px;
    color:var(--color-ink);
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:8px;
  }
  .mobile-nav-close:hover{
    background:var(--color-surface-muted);
  }
  .mobile-nav-links{
    margin-top:28px;
    display:flex;
    flex-direction:column;
    flex:1;
  }
  .mobile-nav-links a{
    font-size:30px;
    font-weight:700;
    padding:14px 0 18px 18px;
    border-bottom:1px solid #eeeae3;
    line-height:1.2;
    color:var(--color-ink);
    position:relative;
    transition:all .25s var(--ease);
  }
  .mobile-nav-links a.active{
    color:var(--color-primary);
  }
  .mobile-nav-links a.active::before{
    content:"";
    position:absolute;
    left:0;
    top:20px;
    bottom:18px;
    width:4px;
    border-radius:99px;
    background:var(--color-primary);
  }
  .mobile-footer-cta{
    display:flex;
    gap:12px;
    align-items:center;
    padding-top:18px;
  }
  .mobile-footer-cta .btn{
    flex:1;
  }
  .zone-hero{
    background:var(--color-surface);
    border-bottom:1px solid var(--color-line);
    position:relative;
    overflow:hidden;
  }
  .zone-hero .container{
    padding-top:80px;
    padding-bottom:78px;
  }
  .page-eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    line-height:1.2;
    color:var(--color-primary-strong);
    font-weight:700;
  }
  .page-eyebrow .dot{
    width:9px;
    height:9px;
    border-radius:99px;
    background:var(--color-primary);
    display:inline-block;
  }
  .zone-hero h1{
    font-size:clamp(42px,6.4vw,78px);
    font-weight:900;
    line-height:1.06;
    letter-spacing:-.03em;
    margin-top:18px;
    color:var(--color-ink);
  }
  .zone-hero h1 .hl{
    color:var(--color-primary);
  }
  .zone-hero-desc{
    max-width:590px;
    margin-top:20px;
    font-size:17px;
    color:var(--color-muted);
    line-height:1.8;
  }
  .zone-hero-actions{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
    margin-top:30px;
  }
  .hero-mini-status{
    display:flex;
    flex-wrap:wrap;
    gap:12px 28px;
    margin-top:50px;
    padding-top:22px;
    border-top:1px solid var(--color-line);
    max-width:620px;
  }
  .hero-mini-status span{
    font-size:13px;
    color:var(--color-muted);
    display:inline-flex;
    align-items:center;
    gap:7px;
    line-height:1.4;
  }
  .hero-mini-status i{
    color:var(--color-primary);
    font-size:15px;
  }
  .hero-poster{
    position:relative;
    margin-top:48px;
  }
  .hero-poster img{
    width:100%;
    aspect-ratio:16/7;
    object-fit:cover;
    border-radius:24px;
  }
  .hero-poster::after{
    content:"";
    position:absolute;
    inset:0;
    border-radius:24px;
    background:linear-gradient(110deg,rgba(11,11,12,.08) 0%,rgba(11,11,12,0) 65%);
    pointer-events:none;
  }
  .page-topline{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    padding:18px 0 0;
  }
  .section-title-small{
    font-size:12px;
    font-weight:700;
    color:var(--color-muted);
    letter-spacing:.1em;
  }
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    margin-bottom:30px;
  }
  .section-head h2{
    font-size:clamp(30px,3.4vw,44px);
    font-weight:800;
    line-height:1.2;
    letter-spacing:-.02em;
    color:var(--color-ink);
  }
  .section-head p{
    margin-top:8px;
    color:var(--color-muted);
    font-size:15px;
    max-width:560px;
  }
  .section-link{
    color:var(--color-primary);
    font-size:15px;
    font-weight:700;
    display:inline-flex;
    align-items:center;
    gap:6px;
    flex-shrink:0;
    padding-bottom:4px;
  }
  .section-link:hover{
    color:var(--color-primary-strong);
    gap:10px;
  }
  .tags-line{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-bottom:34px;
  }
  .tags-line .pill{
    font-size:13px;
    font-weight:600;
    padding:8px 18px;
    background:var(--color-surface);
    color:var(--color-muted);
    border:1px solid var(--color-line);
    border-radius:999px;
    transition:all .3s var(--ease);
    cursor:default;
  }
  .tags-line .pill.on{
    background:var(--color-ink);
    color:#fff;
    border-color:var(--color-ink);
    box-shadow:0 4px 10px -6px rgba(22,20,18,.4);
  }
  .tags-line .pill:hover:not(.on){
    border-color:#a8a49c;
    color:var(--color-ink);
  }
  .app-showcase{
    padding-top:72px;
    padding-bottom:44px;
  }
  .app-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:24px;
  }
  .app-card{
    background:var(--color-surface);
    border-radius:var(--radius-lg);
    padding:22px;
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:22px;
    box-shadow:0 2px 4px rgba(22,20,18,.02);
    border:1px solid rgba(220,216,208,.55);
    transition:all .45s var(--ease);
  }
  .app-card:hover{
    box-shadow:var(--shadow-float);
    transform:translateY(-4px);
    border-color:rgba(232,87,17,.18);
  }
  .app-card.offset{
    margin-top:26px;
  }
  .app-media{
    border-radius:16px;
    overflow:hidden;
    position:relative;
    aspect-ratio:4/3;
    background:var(--color-surface-muted);
    min-height:145px;
  }
  .app-media img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .6s var(--ease);
  }
  .app-card:hover .app-media img{
    transform:scale(1.05);
  }
  .app-card .app-media::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(to top,rgba(15,15,16,.18),rgba(15,15,16,0) 45%);
    pointer-events:none;
  }
  .app-info{
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    justify-content:center;
  }
  .app-badges{
    display:flex;
    flex-wrap:wrap;
    gap:7px;
    margin-bottom:10px;
  }
  .badge{
    display:inline-flex;
    align-items:center;
    gap:5px;
    font-size:12px;
    font-weight:700;
    background:var(--color-surface-muted);
    color:var(--color-ink);
    padding:5px 11px;
    border-radius:999px;
    line-height:1.4;
  }
  .badge.hot{
    background:var(--color-primary-soft);
    color:var(--color-primary-strong);
  }
  .badge.success{
    background:#e3f2ec;
    color:var(--color-success);
  }
  .app-title{
    font-size:21px;
    font-weight:800;
    line-height:1.35;
    color:var(--color-ink);
    display:-webkit-box;
    -webkit-line-clamp:1;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .app-summary{
    font-size:14px;
    color:var(--color-muted);
    margin-top:8px;
    line-height:1.65;
    display:-webkit-box;
    -webkit-line-clamp:3;
    -webkit-box-orient:vertical;
    overflow:hidden;
    margin-bottom:10px;
  }
  .app-meta{
    margin:10px 0 16px;
    width:100%;
    display:flex;
    flex-wrap:wrap;
    font-size:12px;
    color:var(--color-muted);
    gap:6px 14px;
  }
  .app-meta i{
    color:var(--color-primary);
    margin-right:2px;
  }
  .app-more{
    margin-top:auto;
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:14px;
    font-weight:700;
    color:var(--color-ink);
    padding:3px 0;
    border-bottom:2px solid var(--color-ink);
  }
  .app-more i{
    transition:transform .3s var(--ease);
  }
  .app-card:hover .app-more i{
    transform:translateX(4px);
  }
  .zone-feature{
    background:var(--color-surface-muted);
    border-top:1px solid var(--color-line);
    border-bottom:1px solid var(--color-line);
    padding:64px 0;
  }
  .feature-grid{
    display:grid;
    grid-template-columns:1.1fr 1fr;
    gap:40px;
    align-items:center;
  }
  .feature-copy h2{
    font-size:clamp(28px,3vw,40px);
    line-height:1.2;
    font-weight:800;
    margin-top:10px;
    letter-spacing:-.02em;
  }
  .feature-desc{
    color:var(--color-muted);
    margin-top:16px;
    font-size:15px;
    max-width:500px;
  }
  .feature-list{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:16px;
  }
  .feature-item{
    background:var(--color-surface);
    border-radius:var(--radius-lg);
    padding:24px 22px;
    border:1px solid rgba(255,255,255,.7);
    box-shadow:none;
    transition:all .4s var(--ease);
  }
  .feature-item:hover{
    transform:translateY(-3px);
    box-shadow:var(--shadow-card);
    border-color:rgba(21,22,23,.1);
  }
  .feature-icon{
    width:42px;
    height:42px;
    border-radius:12px;
    display:flex;
    align-items:center;
    justify-content:center;
    color:var(--color-primary);
    background:var(--color-primary-soft);
    font-size:18px;
    margin-bottom:16px;
  }
  .feature-item h3{
    font-size:17px;
    font-weight:700;
    line-height:1.4;
  }
  .feature-item p{
    font-size:13px;
    color:var(--color-muted);
    margin-top:7px;
    line-height:1.7;
  }
  .guide-section{
    padding:90px 0 76px;
  }
  .guide-layout{
    display:grid;
    grid-template-columns:.9fr 1.1fr;
    gap:40px;
    align-items:start;
  }
  .guide-intro .h2{
    font-size:clamp(30px,3.4vw,44px);
    font-weight:800;
    line-height:1.18;
    letter-spacing:-.02em;
  }
  .guide-intro p{
    color:var(--color-muted);
    margin-top:16px;
    font-size:15px;
    max-width:420px;
  }
  .guide-list{
    border-top:2px solid var(--color-ink);
  }
  .guide-step{
    display:grid;
    grid-template-columns:48px 1fr auto;
    gap:18px;
    align-items:center;
    border-bottom:1px solid var(--color-line);
    padding:20px 0 18px;
  }
  .step-num{
    font-size:15px;
    font-weight:900;
    color:var(--color-primary);
    width:48px;
    height:48px;
    border-radius:12px;
    background:var(--color-primary-soft);
    display:flex;
    align-items:center;
    justify-content:center;
    line-height:1;
  }
  .guide-step h3{
    font-size:19px;
    font-weight:800;
    line-height:1.3;
  }
  .guide-step p{
    font-size:13px;
    color:var(--color-muted);
    margin-top:4px;
    line-height:1.7;
  }
  .guide-step-arrow{
    font-size:22px;
    color:#b3aea6;
  }
  .trust-band{
    background:var(--color-dark);
    color:#fff;
    border-radius:20px;
    margin:48px 0 0;
    padding:32px 32px;
    display:grid;
    grid-template-columns:repeat(4,1fr);
  }
  .trust-item{
    display:flex;
    gap:15px;
    padding:8px 12px;
  }
  .trust-item:not(:last-child){
    border-right:1px solid #3A3B3D;
  }
  .trust-icon{
    width:40px;
    height:40px;
    border-radius:11px;
    background:rgba(255,255,255,.08);
    display:flex;
    align-items:center;
    justify-content:center;
    color:var(--color-primary);
    font-size:17px;
  }
  .trust-item strong{
    display:block;
    font-size:15px;
  }
  .trust-item small{
    display:block;
    margin-top:3px;
    font-size:12px;
    color:#9b9fa3;
    line-height:1.5;
  }
  .banner-zone{
    background:#ffffff;
    border-bottom:1px solid var(--color-line);
    padding:0 0 20px;
  }
  .zone-simple-banner{
    background:var(--color-ink);
    border-radius:24px;
    padding:40px;
    color:#fff;
    margin-top:40px;
    display:grid;
    grid-template-columns:1fr auto;
    gap:30px;
    align-items:center;
    position:relative;
    overflow:hidden;
  }
  .zone-simple-banner::after{
    content:"";
    position:absolute;
    top:-50px;
    right:-40px;
    width:280px;
    height:280px;
    background:radial-gradient(circle,rgba(232,87,17,.25),transparent 65%);
    pointer-events:none;
  }
  .zone-simple-banner h3{
    font-size:clamp(24px,3vw,36px);
    font-weight:800;
    line-height:1.3;
  }
  .zone-simple-banner p{
    font-size:15px;
    color:#C6C9CC;
    margin-top:10px;
    max-width:480px;
  }
  .faq-section{
    padding-top:80px;
    padding-bottom:70px;
    max-width:920px;
    margin:0 auto;
  }
  .faq-head{
    text-align:center;
    margin-bottom:40px;
  }
  .faq-head h2{
    font-size:clamp(30px,3.2vw,42px);
    font-weight:800;
    letter-spacing:-.02em;
  }
  .faq-head p{
    color:var(--color-muted);
    margin-top:10px;
    font-size:15px;
  }
  .faq-item{
    border-bottom:1px solid var(--color-line);
    background:var(--color-surface);
    border-left:2px solid transparent;
    transition:border-color .3s ease;
  }
  .faq-item:first-child{
    border-top:1px solid var(--color-line);
  }
  .faq-item.open{
    border-left-color:var(--color-primary);
  }
  .faq-question{
    width:100%;
    display:flex;
    justify-content:space-between;
    align-items:center;
    text-align:left;
    padding:21px 22px;
    font-size:17px;
    font-weight:700;
    color:var(--color-ink);
    gap:18px;
    background:transparent;
    transition:color .25s ease;
  }
  .faq-question:hover{
    color:var(--color-primary);
  }
  .faq-icon{
    width:30px;
    height:30px;
    flex-shrink:0;
    border-radius:8px;
    background:var(--color-primary-soft);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:16px;
    color:var(--color-primary-strong);
    transition:transform .3s var(--ease);
  }
  .faq-question span:first-child{
    line-height:1.5;
  }
  .faq-item.open .faq-icon{
    transform:rotate(45deg);
  }
  .faq-answer{
    max-height:0;
    overflow:hidden;
    transition:max-height .4s var(--ease);
  }
  .faq-answer-inner{
    padding:0 22px 22px 24px;
    color:var(--color-muted);
    font-size:15px;
    line-height:1.8;
    max-width:740px;
  }
  .cta-section{
    background:var(--color-dark);
    color:#fff;
    position:relative;
    overflow:hidden;
  }
  .cta-section::after{
    content:"";
    position:absolute;
    right:-60px;
    top:-100px;
    height:380px;
    width:380px;
    background:radial-gradient(circle,rgba(232,87,17,.28),transparent 60%);
    pointer-events:none;
  }
  .cta-wrapper{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:40px;
    padding:68px 0;
    position:relative;
    z-index:1;
  }
  .cta-copy h2{
    font-size:clamp(24px,3vw,38px);
    line-height:1.3;
    font-weight:800;
  }
  .cta-copy p{
    color:#AEB2B6;
    margin-top:12px;
    font-size:15px;
  }
  .cta-btn-wrap{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
  }
  .btn-white{
    background:#ffffff;
    color:var(--color-ink);
    border-radius:6px;
    padding:15px 36px;
    font-weight:800;
    box-shadow:0 8px 24px rgba(0,0,0,.15);
  }
  .btn-white:hover{
    transform:translateY(-2px);
    box-shadow:0 14px 30px rgba(0,0,0,.2);
    color:#000;
    background:#f2eee9;
  }
  .btn-ghost-dark{
    background:transparent;
    color:#fff;
    border:1px solid rgba(255,255,255,.35);
    padding:14px 26px;
    border-radius:6px;
  }
  .btn-ghost-dark:hover{
    background:rgba(255,255,255,.08);
    border-color:rgba(255,255,255,.7);
    color:#fff;
    transform:translateY(-2px);
  }
  .site-footer{
    background:#111213;
    color:#c9c5bd;
    font-size:14px;
  }
  .site-footer .container{
    padding-top:52px;
  }
  .footer-top{
    display:grid;
    grid-template-columns:1.3fr 1fr 1fr 1fr;
    gap:32px;
    padding-bottom:36px;
  }
  .site-footer .brand .brand-text{
    color:#fff;
  }
  .site-footer .brand .brand-text small{
    color:#858A8F;
  }
  .footer-desc{
    max-width:300px;
    line-height:1.8;
    color:#83878B;
    margin-top:16px;
    font-size:13px;
  }
  .footer-col h4{
    font-size:14px;
    color:#fff;
    font-weight:700;
    margin-bottom:14px;
    padding-bottom:8px;
    border-bottom:1px solid #292A2C;
  }
  .footer-col a{
    display:block;
    color:#9A9EA3;
    font-size:14px;
    line-height:1.4;
    padding:6px 0;
    transition:all .25s var(--ease);
  }
  .footer-col a i{
    margin-right:6px;
    color:#5E646B;
    font-size:12px;
    width:16px;
    display:inline-block;
  }
  .footer-col a:hover{
    color:var(--color-primary);
    padding-left:4px;
  }
  .footer-bar{
    border-top:1px solid #26272A;
    padding:16px 0;
    display:flex;
    gap:6px 24px;
    flex-wrap:wrap;
    font-size:13px;
    color:#757a80;
  }
  .footer-bar a{
    color:#9A9EA3;
  }
  .footer-bar a:hover{
    color:var(--color-primary);
  }
  @media (max-width:1023px){
    .site-nav{
      display:none;
    }
    .burger{
      display:block;
    }
    .header-inner{
      height:64px;
    }
    .app-card{
      grid-template-columns:1fr;
    }
    .app-media{
      aspect-ratio:16/10;
    }
    .feature-grid{
      grid-template-columns:1fr;
    }
    .guide-layout{
      grid-template-columns:1fr;
    }
    .trust-band{
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .trust-item:nth-child(2){
      border-right:0;
    }
    .trust-item:nth-child(n+3){
      padding-top:16px;
    }
    .footer-top{
      grid-template-columns:1fr 1fr;
    }
    .footer-brand{
      grid-column:1/-1;
    }
    .zone-simple-banner{
      grid-template-columns:1fr;
    }
  }
  @media (max-width:767px){
    .container{
      padding-left:18px;
      padding-right:18px;
    }
    .site-header .btn{
      display:none;
    }
    .zone-hero .container{
      padding-top:46px;
      padding-bottom:40px;
    }
    .zone-hero h1{
      font-size:37px;
      letter-spacing:-.025em;
    }
    .zone-hero h1 br{
      display:none;
    }
    .zone-hero-desc{
      font-size:15px;
      margin-top:16px;
    }
    .zone-hero-actions{
      gap:10px;
      margin-top:24px;
    }
    .zone-hero-actions .btn{
      width:100%;
    }
    .hero-mini-status{
      margin-top:32px;
      gap:10px;
    }
    .hero-poster img{
      border-radius:16px;
      aspect-ratio:4/3;
    }
    .section-head{
      margin-bottom:22px;
    }
    .section-link{
      margin-top:4px;
    }
    .app-grid{
      grid-template-columns:1fr;
    }
    .app-card{
      padding:16px;
    }
    .app-card.offset{
      margin-top:0;
    }
    .app-media{
      min-height:0;
      max-height:230px;
    }
    .feature-list{
      grid-template-columns:1fr;
    }
    .guide-step{
      grid-template-columns:40px 1fr;
      padding:18px 0;
    }
    .guide-step-arrow{
      display:none;
    }
    .step-num{
      width:40px;
      height:40px;
      font-size:13px;
    }
    .trust-band{
      grid-template-columns:1fr;
      padding:20px 12px 12px;
    }
    .trust-item{
      padding:10px 4px;
    }
    .trust-item:not(:last-child),
    .trust-item:nth-child(n+3){
      border-right:0;
      border-bottom:1px solid #2B2C2E;
      padding-top:10px;
      padding-bottom:14px;
    }
    .zone-simple-banner{
      padding:28px 20px;
    }
    .faq-section{
      padding-top:60px;
    }
    .faq-question{
      font-size:15px;
      padding:17px 12px 16px;
    }
    .faq-answer-inner{
      padding:0 14px 18px 18px;
    }
    .cta-wrapper{
      flex-direction:column;
      align-items:flex-start;
      padding:52px 0;
    }
    .cta-btn-wrap,
    .cta-btn-wrap a{
      flex:1;
    }
    .cta-btn-wrap a{
      width:100%;
    }
    .footer-top{
      grid-template-columns:1fr;
      gap:26px;
    }
    .footer-brand{
      grid-column:auto;
    }
    .footer-bar{
      flex-direction:column;
      gap:8px;
      padding:18px 0;
    }
    .mobile-footer-cta{
      flex-direction:column;
    }
    .mobile-footer-cta .btn{
      width:100%;
    }
  }
  @media (prefers-reduced-motion:reduce){
    html{
      scroll-behavior:auto;
    }
    *,*::before,*::after{
      transition:none!important;
      animation:none!important;
    }
  }

/* roulang page: article */
:root{
  --bg:#F5F4F1;
  --surface:#FFFFFF;
  --surface-muted:#ECE9E3;
  --ink:#151617;
  --muted:#60666C;
  --primary:#E85711;
  --primary-strong:#C9440A;
  --primary-soft:#FCE9DF;
  --line:#DCD8D0;
  --success:#147D5A;
  --shadow-card:0 2px 6px rgba(22,20,18,.04), 0 16px 40px -24px rgba(22,20,18,.22);
  --shadow-float:0 4px 12px rgba(22,20,18,.06), 0 28px 64px -20px rgba(22,20,18,.28);
  --radius-lg:20px;
  --radius-btn:4px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:3px solid rgba(232,87,17,.45);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;border:0;background:none;color:inherit}
ul,ol{padding-left:0}
.container{
  width:min(1280px,100%);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.skip-link{
  position:absolute;
  left:16px;
  top:-100px;
  z-index:999;
  background:var(--ink);
  color:#fff;
  padding:10px 18px;
  border-radius:0 0 12px 12px;
  transition:top .2s;
}
.skip-link:focus{top:0}
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{
  box-shadow:0 8px 30px -18px rgba(22,20,18,.32);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:22px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-badge{
  width:38px;
  height:38px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--primary);
  color:#fff;
  font-size:18px;
  font-weight:800;
  border-radius:11px;
  box-shadow:0 6px 16px -8px rgba(232,87,17,.65);
}
.brand-text{
  font-size:21px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
  line-height:1.1;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.brand-text small{
  font-size:11px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--primary);
}
.site-nav{
  display:flex;
  align-items:center;
  gap:30px;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  padding:22px 0;
  transition:color .2s;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:100%;
  bottom:16px;
  height:4px;
  background:var(--primary);
  border-radius:3px 3px 0 0;
  transition:right .25s ease;
}
.nav-link:hover,.nav-link.active{color:var(--primary)}
.nav-link.active::after{right:0}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-btn);
  font-weight:700;
  font-size:15px;
  line-height:1;
  padding:0 22px;
  min-height:48px;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  position:relative;
  overflow:hidden;
  text-align:center;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 8px 22px -12px rgba(232,87,17,.75);
}
.btn-primary:hover,.btn-primary:focus-visible{
  background:var(--primary-strong);
  transform:translateY(-2px);
  box-shadow:0 14px 30px -14px rgba(201,68,10,.6);
}
.btn-sm{
  min-height:40px;
  padding:0 18px;
  font-size:14px;
}
.btn-outline{
  border-color:rgba(255,255,255,.45);
  color:#fff;
  background:transparent;
}
.btn-outline:hover,.btn-outline:focus-visible{
  border-color:#fff;
  color:var(--primary);
  background:var(--surface);
}
.btn-outline-dark{
  border-color:var(--line);
  background:var(--surface);
  color:var(--ink);
}
.btn-outline-dark:hover{
  border-color:var(--ink);
  background:var(--surface-muted);
  color:var(--ink);
}
.header-cta{
  box-shadow:0 6px 16px -12px rgba(232,87,17,.8);
}
.burger{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  position:relative;
  z-index:90;
  align-items:center;
  justify-content:center;
}
.burger span,.burger span::before,.burger span::after{
  width:22px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  display:block;
  content:"";
  transition:transform .25s ease,opacity .2s ease;
}
.burger span::before{transform:translateY(-7px)}
.burger span::after{transform:translateY(5px)}
body.nav-open .burger span{background:transparent}
body.nav-open .burger span::before{transform:rotate(45deg)}
body.nav-open .burger span::after{transform:rotate(-45deg)}

/* article hero */
.article-hero{
  position:relative;
  overflow:hidden;
  background:#201F1D;
  padding:78px 0 110px;
  color:#fff;
}
.article-hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-position:center;
  background-size:cover;
  opacity:.18;
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(18,17,15,.82) 0%,rgba(18,17,15,.35) 65%,rgba(18,17,15,.18) 100%);
  pointer-events:none;
}
.article-hero-inner{
  position:relative;
  z-index:2;
  max-width:960px;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.8);
  margin-bottom:44px;
}
.breadcrumb a{
  color:rgba(255,255,255,.95);
  transition:color .2s;
}
.breadcrumb a:hover{color:var(--primary)}
.crumb-sep{opacity:.5}
.crumb-now{
  color:rgba(255,255,255,.82);
  max-width:300px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.article-eyebrow{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:20px;
}
.badge-dot{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  border-radius:999px;
  padding:7px 14px;
  background:var(--primary-soft);
  color:var(--primary-strong);
}
.badge-dot::before{
  content:"";
  width:8px;
  height:8px;
  border-radius:100%;
  background:var(--primary);
}
.article-hero h1{
  font-size:clamp(34px,5vw,58px);
  font-weight:900;
  line-height:1.16;
  letter-spacing:-.025em;
  color:#fff;
  max-width:920px;
  text-wrap:balance;
}
.article-lead{
  max-width:840px;
  margin-top:22px;
  font-size:17px;
  line-height:1.75;
  color:rgba(255,255,255,.85);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.article-meta-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:22px;
  margin-top:34px;
  font-size:14px;
  color:rgba(255,255,255,.7);
}
.article-meta-line span{
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.article-meta-line i{color:var(--primary);width:15px;text-align:center}
.meta-verify{
  color:rgba(255,255,255,.9);
}
.article-crumb-line{
  display:inline-flex;
  align-items:center;
  gap:6px;
}

/* article card layout */
.content-wrap{
  max-width:1000px;
  margin:-52px auto 0;
  position:relative;
  z-index:10;
  padding:0 24px;
}
.article-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  padding:clamp(28px,5vw,64px);
}
.article-content-body{
  font-size:17px;
  line-height:1.92;
  color:#26282B;
}
.article-content-body>*+*{
  margin-top:1.35em;
}
.article-content-body h2,.article-content-body h3,.article-content-body h4{
  color:var(--ink);
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.01em;
}
.article-content-body h2{
  font-size:clamp(24px,3vw,32px);
  margin-top:1.8em;
  padding-bottom:.45em;
  border-bottom:1px solid var(--line);
}
.article-content-body h3{
  font-size:clamp(20px,2.4vw,25px);
  margin-top:1.6em;
}
.article-content-body h4{
  font-size:19px;
  margin-top:1.4em;
}
.article-content-body p{
  color:#313438;
}
.article-content-body a{
  color:var(--primary-strong);
  text-decoration:underline;
  text-decoration-color:rgba(232,87,17,.4);
  text-underline-offset:4px;
  transition:color .2s,text-decoration-color .2s;
}
.article-content-body a:hover{
  color:var(--primary);
  text-decoration-color:var(--primary);
}
.article-content-body strong,.article-content-body b{
  color:var(--ink);
  font-weight:700;
}
.article-content-body em{color:#3B3E42}
.article-content-body ul,.article-content-body ol{
  padding-left:1.4em;
  margin:1.2em 0;
}
.article-content-body ul li,.article-content-body ol li{
  margin:.42em 0;
  padding-left:.2em;
}
.article-content-body img{
  border-radius:16px;
  margin:1.8em auto;
  box-shadow:var(--shadow-card);
  height:auto;
}
.article-content-body figure{
  margin:2em 0;
  text-align:center;
}
.article-content-body figure img{margin:0 auto}
.article-content-body figcaption{
  margin-top:12px;
  font-size:13px;
  color:var(--muted);
}
.article-content-body blockquote{
  margin:1.9em 0;
  padding:18px 24px;
  background:#F7F5F2;
  border-left:4px solid var(--ink);
  border-radius:0 14px 14px 0;
  color:#44474C;
}
.article-content-body blockquote p{
  margin:0 0 .7em;
}
.article-content-body blockquote p:last-child{
  margin-bottom:0;
}
.article-content-body code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  background:var(--surface-muted);
  border-radius:6px;
  padding:2px 7px;
  font-size:.88em;
  color:#B4420E;
}
.article-content-body pre{
  background:#141312;
  color:#EDEAE5;
  border-radius:14px;
  padding:22px 24px;
  overflow-x:auto;
  line-height:1.6;
}
.article-content-body pre code{
  background:none;
  color:inherit;
  padding:0;
}
.article-content-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.8em 0;
  font-size:.96em;
  background:var(--surface);
}
.article-content-body th{
  background:#F1EDE7;
  color:var(--ink);
  font-weight:700;
  text-align:left;
  padding:12px 14px;
  border:1px solid var(--line);
}
.article-content-body td{
  padding:12px 14px;
  border:1px solid var(--line);
  color:#444;
}
.article-content-body hr{
  border:0;
  border-top:1px solid var(--line);
  margin:2.4em 0;
}

/* tags */
.article-tags-panel{
  display:flex;
  align-items:flex-start;
  gap:14px;
  flex-wrap:wrap;
  margin-top:48px;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.tags-title{
  flex:0 0 auto;
  font-weight:700;
  font-size:14px;
  color:var(--muted);
  padding-top:6px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border:1px solid var(--line);
  background:var(--surface);
  color:#51555A;
  font-size:13px;
  font-weight:600;
  padding:7px 14px;
  border-radius:999px;
  transition:all .2s;
}
.tag:hover,.tag:focus-visible{
  border-color:var(--primary);
  color:var(--primary-strong);
  background:var(--primary-soft);
}
.article-tag-icon{color:var(--primary);font-size:12px}

/* further reading */
.readmore-section{
  padding:80px 0 16px;
}
.section-heading{
  max-width:760px;
  margin-bottom:38px;
}
.section-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary-strong);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  margin-bottom:14px;
}
.section-eyebrow::before{
  content:"";
  width:18px;
  height:3px;
  border-radius:99px;
  background:var(--primary);
}
.section-heading h2{
  font-size:clamp(26px,3.5vw,40px);
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
  line-height:1.2;
}
.section-heading p{
  margin-top:12px;
  color:var(--muted);
  font-size:16px;
  max-width:620px;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.related-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:0 2px 8px -12px rgba(22,20,18,.1);
  transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease,border-color .3s ease;
}
.related-card:hover,.related-card:focus-visible{
  transform:translateY(-4px);
  box-shadow:var(--shadow-float);
  border-color:rgba(232,87,17,.42);
}
.related-thumb{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--surface-muted);
}
.related-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s cubic-bezier(.2,.7,.2,1);
}
.related-card:hover .related-thumb img{
  transform:scale(1.04);
}
.related-body{
  padding:24px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.related-body h3{
  font-size:19px;
  line-height:1.4;
  font-weight:800;
  margin-bottom:8px;
}
.related-body p{
  font-size:14px;
  color:var(--muted);
  line-height:1.65;
  flex:1;
}
.related-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:18px;
  font-size:14px;
  font-weight:700;
  color:var(--primary-strong);
  transition:gap .2s ease;
}
.related-more i{
  font-size:13px;
}
.related-card:hover .related-more{
  gap:13px;
}

/* faq */
.faq-section{
  padding:70px 0 70px;
}
.faq-wrap{
  max-width:880px;
  margin:0 auto;
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 6px 20px 0;
  font-size:17px;
  font-weight:650;
  color:var(--ink);
  transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{
  color:var(--primary);
}
.faq-icon{
  position:relative;
  width:28px;
  height:28px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--surface-muted);
  transition:background .2s ease,transform .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  width:12px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transform:translate(-50%,-50%);
}
.faq-icon::after{
  transform:translate(-50%,-50%) rotate(90deg);
  transition:transform .25s ease;
}
.faq-item[open] summary .faq-icon{
  background:var(--primary-soft);
  transform:rotate(135deg);
}
.faq-item[open] summary .faq-icon::before,.faq-item[open] summary .faq-icon::after{
  background:var(--primary-strong);
}
.faq-item summary:hover .faq-icon{
  background:var(--primary-soft);
}
.faq-answer{
  padding:0 34px 22px 4px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
}
.faq-answer a{
  color:var(--primary-strong);
  font-weight:600;
  transition:color .2s;
}
.faq-answer a:hover{color:var(--primary)}

/* bottom cta */
.bottom-cta{
  padding:10px 0 88px;
}
.bottom-cta-inner{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  border-radius:22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  padding:clamp(34px,5vw,64px);
  color:#fff;
  box-shadow:var(--shadow-card);
}
.bottom-cta-inner::after{
  content:"";
  position:absolute;
  right:-90px;
  top:-70px;
  width:310px;
  height:310px;
  border-radius:100%;
  background:rgba(232,87,17,.2);
  filter:blur(20px);
}
.cta-copy{
  position:relative;
  z-index:2;
  max-width:680px;
}
.cta-copy .section-eyebrow{
  color:var(--primary);
}
.cta-copy .section-eyebrow::before{
  background:var(--primary);
}
.cta-copy h2{
  font-size:clamp(26px,3.4vw,42px);
  font-weight:800;
  line-height:1.25;
  color:#fff;
  letter-spacing:-.02em;
}
.cta-copy p{
  margin-top:14px;
  color:rgba(255,255,255,.74);
  font-size:16px;
  line-height:1.7;
}
.cta-actions{
  position:relative;
  z-index:3;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  flex-shrink:0;
}

/* article return */
.article-return{
  max-width:1000px;
  margin:60px auto 80px;
  padding:22px 24px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.return-link{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:var(--ink);
  font-weight:600;
  font-size:14px;
  padding:10px 0;
  transition:color .2s,gap .2s;
}
.return-link:hover{
  color:var(--primary);
}
.return-link i{color:var(--primary)}
.return-link:hover i{transform:translateX(-2px)}
.return-link-next i{
  transition:transform .2s;
}
.return-link-next:hover i{
  transform:translateX(2px);
}

/* empty state */
.empty-article{
  text-align:center;
  padding:54px 24px 58px;
  border:1.5px dashed var(--line);
  border-radius:var(--radius-lg);
  background:var(--bg);
}
.empty-article .empty-icon{
  width:58px;
  height:58px;
  margin:0 auto 18px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:18px;
  background:var(--surface-muted);
  color:var(--primary);
  font-size:24px;
}
.empty-article h2{
  font-size:24px;
  font-weight:800;
  color:var(--ink);
}
.empty-article p{
  color:var(--muted);
  margin:10px 0 22px;
}

/* footer */
.site-footer{
  background:#111213;
  color:#9CA0A5;
}
.footer-top{
  display:grid;
  grid-template-columns:2.2fr 1fr 1fr 1fr;
  gap:44px;
  padding:62px 0 38px;
}
.footer-brand{
  display:flex;
  flex-direction:column;
  gap:18px;
}
.footer-brand .brand-badge{
  box-shadow:0 8px 20px -10px rgba(232,87,17,.4);
}
.footer-brand .brand-text{
  color:#fff;
}
.footer-brand .brand-text small{
  color:rgba(255,255,255,.65);
}
.footer-desc{
  max-width:320px;
  color:#8C9096;
  font-size:14px;
  line-height:1.75;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:14px;
  letter-spacing:.04em;
}
.footer-col{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:11px;
}
.footer-col a{
  color:#9CA0A5;
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:color .2s,transform .2s;
}
.footer-col a:hover,.footer-col a:focus-visible{
  color:#fff;
  transform:translateX(3px);
}
.footer-col i{
  width:15px;
  color:var(--primary);
  font-size:13px;
  text-align:center;
}
.footer-bar{
  border-top:1px solid #2A2C2E;
  padding:20px 0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  font-size:13px;
  color:#7E8388;
}
.footer-bar a{
  color:#a5AAAF;
  transition:color .2s;
}
.footer-bar a:hover{
  color:var(--primary);
}

/* responsive */
@media (max-width:1023px){
  .header-inner{height:60px}
  .header-cta{display:none}
  .site-nav{
    position:fixed;
    inset:0;
    z-index:80;
    background:var(--surface);
    flex-direction:column;
    align-items:flex-start;
    justify-content:center;
    gap:6px;
    padding:40px 44px;
    transform:translateX(100%);
    transition:transform .3s cubic-bezier(.2,.7,.2,1);
    box-shadow:var(--shadow-float);
  }
  body.nav-open .site-nav{
    transform:translateX(0);
  }
  .nav-link{
    font-size:30px;
    font-weight:700;
    line-height:1.2;
    padding:10px 0 10px 22px;
    width:100%;
    color:var(--ink);
    border-left:4px solid transparent;
    white-space:nowrap;
  }
  .nav-link::after{display:none}
  .nav-link.active{
    color:var(--primary-strong);
    border-left-color:var(--primary);
  }
  .burger{
    display:inline-flex;
  }
  .header-inner .brand-text small{
    font-size:10px;
  }
  .footer-top{
    grid-template-columns:1fr 1fr 1fr;
    gap:34px 28px;
  }
  .footer-brand{
    grid-column:span 3;
    text-align:left;
  }
  .related-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .bottom-cta-inner{
    flex-direction:column;
    align-items:flex-start;
  }
  .article-hero{
    padding:64px 0 104px;
  }
  .article-card{
    padding:30px;
  }
  .article-return{
    flex-direction:column;
    align-items:flex-start;
    margin-top:36px;
    gap:8px;
  }
}
@media (max-width:767px){
  .container{
    padding-left:16px;
    padding-right:16px;
  }
  .site-nav{
    padding:28px 26px;
  }
  .nav-link{
    font-size:28px;
  }
  .article-hero{
    padding:48px 0 96px;
  }
  .article-hero h1{
    font-size:34px;
  }
  .article-meta-line{
    gap:12px;
    flex-direction:column;
    align-items:flex-start;
  }
  .content-wrap{
    margin-top:-38px;
    padding:0 14px;
  }
  .article-card{
    border-radius:16px;
    padding:22px 18px;
  }
  .article-content-body{
    font-size:16px;
    line-height:1.85;
  }
  .related-grid{
    grid-template-columns:1fr;
  }
  .related-thumb{
    aspect-ratio:16/8;
  }
  .footer-top{
    grid-template-columns:1fr 1fr;
  }
  .footer-brand{
    grid-column:span 2;
  }
  .footer-bar{
    flex-direction:column;
    align-items:flex-start;
  }
  .cta-actions{
    width:100%;
    flex-direction:column;
  }
  .bottom-cta-inner .btn{
    width:100%;
  }
  .article-tags-panel{
    gap:10px;
  }
  .tag{
    padding:9px 14px;
  }
  .faq-answer{
    padding-left:2px;
  }
}
@media (max-width:520px){
  .brand-badge{
    width:34px;
    height:34px;
    font-size:16px;
  }
  .brand-text{
    font-size:18px;
  }
  .footer-top{
    grid-template-columns:1fr;
    padding-top:46px;
  }
  .footer-brand{
    grid-column:span 1;
  }
  .footer-col{
    border-top:1px solid #222426;
    padding-top:18px;
  }
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;
    transition-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
}

/* roulang page: category2 */
:root {
  --bg: #F5F4F1;
  --surface: #FFFFFF;
  --surface-muted: #ECE9E3;
  --ink: #151617;
  --muted: #60666C;
  --line: #DCD8D0;
  --primary: #E85711;
  --primary-strong: #C9440A;
  --primary-soft: #FCE9DF;
  --success: #147D5A;
  --shadow-card: 0 2px 6px rgba(22,20,18,.04), 0 16px 40px -24px rgba(22,20,18,.22);
  --shadow-float: 0 4px 12px rgba(22,20,18,.06), 0 28px 64px -20px rgba(22,20,18,.28);
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --ease: cubic-bezier(.2,.7,.2,1);
  --header-h: 72px;
  --section-space: 104px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font-family: inherit;
  font-size: inherit;
}

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.2;
  color: var(--ink);
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 80px;
  padding-right: 80px;
}

.section {
  padding: var(--section-space) 0;
  scroll-margin-top: 90px;
}

.section-bg-white {
  background: var(--surface);
}

.section-bg-muted {
  background: var(--surface-muted);
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--header-h);
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s var(--ease);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-card);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-badge {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--ink);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  font-weight: 800;
  position: relative;
}

.brand-badge::after {
  content: "";
  position: absolute;
  right: -3px;
  top: -3px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--primary);
}

.brand-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
  display: flex;
  align-items: baseline;
  gap: 5px;
}

.brand-text small {
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: .2em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  padding: 10px 2px;
  border-bottom: 3px solid transparent;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link.active {
  border-bottom-color: var(--primary);
  color: var(--ink);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 4px;
  font-weight: 600;
  line-height: 1;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-strong);
  transform: translateY(-2px);
  box-shadow: 0 14px 32px -14px rgba(232,87,17,.56);
}

.btn-secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line);
}

.btn-secondary:hover {
  background: var(--surface-muted);
  border-color: var(--ink);
}

.btn-sm {
  height: 40px;
  padding: 0 18px;
  font-size: 14px;
}

.btn-md {
  height: 48px;
  padding: 0 28px;
  font-size: 15px;
}

.btn-lg {
  min-height: 56px;
  padding: 0 40px;
  font-size: 16px;
}

.burger {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  z-index: 220;
}

.burger span,
.burger span::before,
.burger span::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 2px;
  background: var(--ink);
  left: 50%;
  top: 50%;
  margin-left: -10px;
  border-radius: 2px;
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}

.burger span::before {
  transform: translateY(-6px);
}

.burger span::after {
  transform: translateY(6px);
}

body.menu-open .burger span {
  background: transparent;
}

body.menu-open .burger span::before {
  transform: rotate(45deg);
}

body.menu-open .burger span::after {
  transform: rotate(-45deg);
}

/* hero */
.page-hero {
  min-height: 600px;
  padding: 112px 0 56px;
  border-bottom: 1px solid var(--line);
  background-image: linear-gradient(90deg, rgba(245,244,241,.98) 0%, rgba(245,244,241,.9) 40%, rgba(245,244,241,.4) 100%), url("/assets/images/backpic/back-1.webp");
  background-size: cover;
  background-position: center right;
  position: relative;
}

.page-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 60px;
  background: linear-gradient(180deg, transparent, rgba(245,244,241,.72));
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: .06em;
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
}

.hero-title {
  font-size: clamp(44px, 7vw, 82px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-top: 28px;
  max-width: 12em;
}

.hero-title span {
  display: block;
  color: var(--primary);
}

.hero-lead {
  font-size: clamp(16px, 1.4vw, 19px);
  color: var(--muted);
  line-height: 1.75;
  max-width: 56ch;
  margin-top: 26px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  margin-top: 44px;
  align-items: center;
  font-size: 14px;
  color: var(--muted);
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-meta span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
}

/* quick belt */
.quick-belt {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 0;
}

.belt-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.belt-item {
  padding: 30px 36px 30px 0;
  border-right: 1px solid var(--line);
  margin-right: 36px;
}

.belt-item:last-child {
  border-right: 0;
  margin-right: 0;
}

.belt-item span {
  font-size: 18px;
  font-weight: 700;
  display: block;
}

.belt-item small {
  color: var(--muted);
  font-size: 13px;
  display: block;
  margin-top: 6px;
  line-height: 1.6;
}

/* section common */
.section-head {
  margin-bottom: 48px;
  max-width: 720px;
}

.section-head h2 {
  font-size: clamp(30px, 3.6vw, 46px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-top: 16px;
  line-height: 1.15;
}

.section-head p {
  color: var(--muted);
  font-size: 16px;
  margin: 16px 0 0;
  max-width: 58ch;
  line-height: 1.75;
}

.section-head .eyebrow {
  background: var(--primary-soft);
  color: var(--primary);
}

.section-head .eyebrow::before {
  background: var(--primary);
}

/* chips */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.chip {
  min-height: 40px;
  padding: 0 16px;
  border-radius: var(--radius-pill);
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.chip:hover {
  border-color: var(--muted);
}

.chip.active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

/* genre grid */
.genre-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 24px;
}

.genre-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  min-height: 100%;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}

.genre-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-float);
  border-color: rgba(232,87,17,.28);
}

.genre-card-mediaOnly {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
}

.genre-media {
  min-height: 260px;
  overflow: hidden;
}

.genre-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}

.genre-card:hover .genre-media img {
  transform: scale(1.03);
}

.genre-content {
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.genre-content .genre-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  display: inline-flex;
  width: max-content;
  border-radius: var(--radius-pill);
  padding: 4px 12px;
  margin-bottom: 14px;
}

.genre-content h3 {
  font-size: clamp(20px, 1.6vw, 26px);
  font-weight: 700;
  line-height: 1.3;
}

.genre-content p {
  color: var(--muted);
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.75;
}

.genre-more {
  margin-top: 28px;
  font-weight: 600;
  font-size: 14px;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: gap .25s var(--ease), color .2s var(--ease);
}

.genre-more:hover {
  color: var(--primary);
  gap: 12px;
}

.genre-content .list-lines {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.genre-content .list-lines li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.genre-content .list-lines li:last-child {
  border-bottom: 0;
}

.genre-content .list-lines li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

/* channel list */
.channel-list {
  border-top: 1px solid var(--line);
}

.channel-row {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr) auto;
  gap: 42px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding: 34px 10px;
  transition: background .25s var(--ease);
  position: relative;
}

.channel-row:hover {
  background: var(--primary-soft);
}

.channel-index {
  font-size: 42px;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--line);
  line-height: 1;
  font-style: normal;
}

.channel-row:hover .channel-index {
  color: var(--primary);
  -webkit-text-stroke: 0 transparent;
}

.channel-info h3 {
  font-size: clamp(19px, 1.6vw, 24px);
  font-weight: 700;
}

.channel-info p {
  color: var(--muted);
  margin: 10px 0 0;
  font-size: 15px;
  max-width: 60ch;
}

.channel-tag {
  display: inline-block;
  background: var(--surface-muted);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  margin-bottom: 8px;
}

.channel-link {
  font-weight: 600;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: color .2s var(--ease), gap .25s var(--ease);
}

.channel-link:hover {
  color: var(--primary);
  gap: 12px;
}

/* why section */
.why-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 72px;
  align-items: start;
}

.why-copy h2 {
  font-size: clamp(30px, 3.2vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  margin-top: 18px;
}

.why-copy p {
  color: var(--muted);
  margin-top: 18px;
  font-size: 16px;
}

.why-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.why-list li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.why-list li:first-child {
  padding-top: 0;
}

.why-num {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.why-list h3 {
  font-size: 20px;
  font-weight: 700;
}

.why-list p {
  color: var(--muted);
  font-size: 15px;
  margin: 8px 0 0;
}

/* usage band */
.usage-band {
  background-color: var(--ink);
  background-image: linear-gradient(120deg, rgba(21,22,23,.92), rgba(21,22,23,.74)), url("/assets/images/backpic/back-2.webp");
  background-size: cover;
  background-position: center;
  padding: var(--section-space) 0;
  color: #fff;
}

.usage-band .section-head h2 {
  color: #fff;
}

.usage-band .section-head p {
  color: #BFC2C1;
}

.usage-band .eyebrow {
  background: var(--primary);
  color: #fff;
}

.usage-band .eyebrow::before {
  background: #fff;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  min-height: 224px;
  transition: transform .3s var(--ease), background .3s var(--ease), border-color .3s var(--ease);
}

.step-card:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,.1);
  border-color: var(--primary);
}

.step-num {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  background: var(--primary);
  border-radius: 6px;
  width: max-content;
  padding: 5px 10px;
  display: inline-flex;
}

.step-card h3 {
  font-size: 20px;
  color: #fff;
  margin-top: 24px;
  font-weight: 700;
}

.step-card p {
  color: #BFC2C1;
  font-size: 14px;
  line-height: 1.7;
  margin-top: 12px;
}

.step-arrow {
  color: var(--primary);
  font-weight: 800;
  font-size: 20px;
}

/* faq */
.faq-wrap {
  max-width: 860px;
  border-top: 1px solid var(--line);
}

.faq-wrap details {
  border-bottom: 1px solid var(--line);
  padding: 28px 6px;
}

.faq-wrap summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  cursor: pointer;
  list-style: none;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  transition: color .2s var(--ease);
}

.faq-wrap summary:hover {
  color: var(--primary);
}

.faq-wrap summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--surface-muted);
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 400;
  flex-shrink: 0;
  transition: transform .3s var(--ease), background .3s var(--ease), color .3s var(--ease);
}

.faq-icon::before {
  content: "+";
}

details[open] .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

.faq-answer {
  max-width: 70ch;
  padding: 16px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

/* CTA */
.cta-section {
  background: var(--primary);
  padding: 84px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before,
.cta-section::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
}

.cta-section::before {
  width: 420px;
  height: 420px;
  right: -140px;
  top: -160px;
}

.cta-section::after {
  width: 300px;
  height: 300px;
  left: 10%;
  bottom: -180px;
}

.cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-inner h2 {
  color: #fff;
  font-size: clamp(30px, 4vw, 54px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.cta-inner p {
  color: rgba(255,255,255,.88);
  margin: 14px 0 0;
  font-size: 16px;
  max-width: 45ch;
}

.cta-inner .btn-light {
  background: #fff;
  color: var(--ink);
  margin-top: 18px;
}

.cta-inner .btn-light:hover {
  background: var(--surface-muted);
  transform: translateY(-2px);
  box-shadow: 0 18px 36px -14px rgba(21,22,23,.32);
}

/* footer */
.site-footer {
  background: #111213;
  color: #A6AAAC;
  padding: 64px 0 28px;
  font-size: 14px;
}

.site-footer a {
  color: #A6AAAC;
  transition: color .2s var(--ease);
}

.site-footer a:hover {
  color: #fff;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr .8fr .8fr .8fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-top .brand-text {
  color: #fff;
}

.footer-top .brand-text small {
  color: #8A8D90;
}

.footer-desc {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: #8A8D90;
  max-width: 36ch;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
  font-weight: 700;
}

.footer-col a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 14px;
}

.footer-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 22px;
  color: #6A6E70;
  font-size: 13px;
}

.footer-bar a {
  color: #83878B;
}

/* reveal */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* responsive */
@media (max-width: 1180px) {
  .container {
    padding-left: 40px;
    padding-right: 40px;
  }

  .genre-grid {
    grid-template-columns: 1fr;
  }

  .step-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }

  .site-header {
    height: 60px;
  }

  .header-inner {
    height: 60px;
  }

  .header-cta {
    display: none;
  }

  .burger {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(320px, 84%);
    background: var(--surface);
    z-index: 210;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 96px 32px 30px;
    box-shadow: var(--shadow-float);
    transform: translateX(100%);
    transition: transform .3s var(--ease);
  }

  body.menu-open .site-nav {
    transform: translateX(0);
  }

  .site-nav .nav-link {
    display: block;
    width: 100%;
    font-size: 25px;
    font-weight: 600;
    padding: 11px 0 11px 18px;
    border-bottom: 0;
    border-left: 4px solid transparent;
    transition: border-color .25s var(--ease), color .25s var(--ease);
  }

  .site-nav .nav-link.active,
  .site-nav .nav-link:hover {
    color: var(--primary);
    border-left-color: var(--primary);
  }

  .header-cta {
    display: none;
  }
}

@media (max-width: 767px) {
  :root {
    --section-space: 64px;
  }

  body.menu-open .burger {
    position: relative;
    top: 0;
  }

  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .section {
    padding: var(--section-space) 0;
  }

  .hero-title {
    font-size: 38px;
    line-height: 1.12;
  }

  .page-hero {
    min-height: 0;
    padding: 68px 0 36px;
  }

  .hero-meta {
    gap: 14px;
    flex-direction: column;
    align-items: flex-start;
  }

  .belt-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
  }

  .belt-item {
    padding: 22px 16px 22px 0;
    border-bottom: 1px solid var(--line);
    margin-right: 18px;
  }

  .belt-item:nth-child(2n) {
    margin-right: 0;
    border-right: 0;
    padding-right: 0;
  }

  .belt-item:nth-child(3),
  .belt-item:nth-child(4) {
    border-bottom: 0;
    padding-bottom: 8px;
  }

  .genre-card-mediaOnly {
    grid-template-columns: 1fr;
  }

  .genre-media {
    min-height: 200px;
    max-height: 260px;
  }

  .genre-content {
    padding: 24px;
  }

  .channel-row {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 24px 0;
  }

  .channel-index {
    font-size: 30px;
  }

  .why-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .step-grid {
    grid-template-columns: 1fr;
  }

  .step-card {
    min-height: 0;
    padding: 24px 20px;
  }

  .faq-wrap summary {
    font-size: 16px;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding-bottom: 32px;
  }

  .footer-bar {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .header-cta {
    display: none;
  }
}

@media (max-width: 560px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 480px;
  }

  .section-head h2 {
    font-size: 28px;
  }

  .btn-lg {
    width: 100%;
  }
}

@media (max-width: 380px) {
  .brand-text {
    font-size: 19px;
  }

  .brand-text small {
    display: none;
  }

  .belt-item {
    padding-right: 10px;
    margin-right: 10px;
  }

  .belt-item small {
    font-size: 12px;
  }
}

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

  html {
    scroll-behavior: auto;
  }
}

/* roulang page: category3 */
:root{
  --color-bg:#F5F4F1;
  --color-surface:#FFFFFF;
  --color-surface-muted:#ECE9E3;
  --color-ink:#151617;
  --color-muted:#60666C;
  --color-muted-light:#9A9C9E;
  --color-primary:#E85711;
  --color-primary-strong:#C9440A;
  --color-primary-soft:#FCE9DF;
  --color-line:#DCD8D0;
  --color-success:#147D5A;
  --color-ink-soft:#232426;
  --shadow-card:0 2px 6px rgba(22,20,18,.04),0 16px 40px -24px rgba(22,20,18,.22);
  --shadow-float:0 4px 12px rgba(22,20,18,.06),0 28px 64px -20px rgba(22,20,18,.28);
  --radius-card:20px;
  --radius-btn:4px;
  --font-main:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --container:1280px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-main);
  background:var(--color-bg);
  color:var(--color-ink);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{line-height:1.2;font-weight:700;color:var(--color-ink);}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);}
img{display:block;max-width:100%;height:auto;}
button{font-family:inherit;border:0;background:none;cursor:pointer;}
ul,ol{list-style:none;}
input{font-family:inherit;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:clamp(20px,4vw,80px);padding-right:clamp(20px,4vw,80px);}
.section{padding:clamp(64px,9vw,120px) 0;position:relative;}
.surface-white{background:var(--color-surface);}
.surface-muted{background:var(--color-surface-muted);}

:focus-visible{outline:3px solid rgba(232,87,17,.38);outline-offset:3px;border-radius:3px;}
::selection{background:var(--color-primary);color:#fff;}

html.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .65s var(--ease),transform .65s var(--ease);}
html.js .reveal.inview{opacity:1;transform:translateY(0);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:50px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;transition:background-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.btn i{font-size:14px;}
.btn-primary{background:var(--color-primary);color:#fff;}
.btn-primary:hover{background:var(--color-primary-strong);transform:translateY(-2px);box-shadow:0 16px 28px -14px rgba(201,68,10,.55);}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{background:var(--color-surface);color:var(--color-ink);border-color:var(--color-line);}
.btn-secondary:hover{background:var(--color-primary-soft);border-color:var(--color-primary);color:var(--color-primary-strong);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--color-ink);border-color:rgba(255,255,255,.25);}
.btn-light:hover{background:var(--color-primary-soft);border-color:#fff;color:var(--color-primary-strong);transform:translateY(-1px);}
.btn-dark{background:var(--color-ink);color:#fff;border-color:var(--color-ink);}
.btn-dark:hover{background:#000;transform:translateY(-2px);box-shadow:0 18px 32px -14px rgba(0,0,0,.5);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--color-primary);
  background:var(--color-primary-soft);border-radius:999px;
  padding:7px 14px;letter-spacing:.06em;
}
.eyebrow i{font-size:12px;}

.section-head{max-width:920px;margin-bottom:clamp(36px,5vw,64px);}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(30px,4.4vw,48px);font-weight:800;letter-spacing:-.02em;margin:18px 0 14px;}
.section-title .mark{color:var(--color-primary);}
.section-caption{color:var(--color-muted);font-size:16px;max-width:660px;line-height:1.85;}
.section-head.center .section-caption{margin:0 auto;}

.site-header{position:sticky;top:0;z-index:1000;background:var(--color-surface);border-bottom:1px solid transparent;transition:box-shadow .3s var(--ease),border-color .3s var(--ease);}
.site-header.scrolled{border-bottom-color:var(--color-line);box-shadow:0 8px 26px -18px rgba(22,20,18,.26);}
.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;position:relative;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-badge{
  width:38px;height:38px;border-radius:11px;
  background:var(--color-ink);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;position:relative;overflow:hidden;
}
.brand-badge::after{content:"";position:absolute;right:-1px;bottom:-1px;width:16px;height:16px;background:var(--color-primary);border-radius:50% 0 8px 0;opacity:.95;}
.brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand-text strong{font-size:20px;font-weight:800;letter-spacing:.02em;display:block;color:var(--color-ink);}
.brand-text small{display:block;font-size:10px;font-weight:700;color:var(--color-primary);letter-spacing:.22em;margin-top:4px;}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:10px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  font-size:15px;font-weight:500;color:#484C50;padding:10px 15px;border-radius:6px;
}
.nav-link:hover{color:var(--color-primary);background:var(--color-primary-soft);}
.nav-link.active{color:var(--color-primary);font-weight:800;background:transparent;}
.nav-link.active::after{content:"";position:absolute;left:15px;right:15px;bottom:1px;height:4px;border-radius:4px;background:var(--color-primary);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.header-cta{min-height:44px;padding:0 20px;font-size:14px;font-weight:600;}
.burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--color-line);position:relative;background:var(--color-surface);z-index:2100;}
.burger span,.burger span::before,.burger span::after{display:block;width:20px;height:2px;border-radius:2px;background:var(--color-ink);transition:transform .3s var(--ease),opacity .2s var(--ease);}
.burger span::before,.burger span::after{content:"";position:absolute;left:11px;}
.burger span::before{top:15px;}
.burger span::after{bottom:15px;}
body.menu-open .burger{background:var(--color-primary);border-color:var(--color-primary);}
body.menu-open .burger span{background:transparent;}
body.menu-open .burger span::before{top:21px;transform:rotate(45deg);background:#fff;}
body.menu-open .burger span::after{bottom:21px;transform:rotate(-45deg);background:#fff;}

.mobile-mask{position:fixed;inset:0;background:rgba(21,22,23,.52);z-index:2000;opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);}
.mobile-mask.is-open{opacity:1;visibility:visible;}
.mobile-panel{
  position:fixed;top:0;right:0;height:100dvh;width:min(88vw,400px);z-index:2100;
  background:var(--color-surface);display:flex;flex-direction:column;
  transform:translateX(105%);transition:transform .32s var(--ease);
  box-shadow:var(--shadow-float);border-left:1px solid var(--color-line);
}
.mobile-panel.is-open{transform:translateX(0);}
.mobile-panel__top{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--color-line);}
.mobile-panel__top .brand-badge{width:32px;height:32px;border-radius:9px;font-size:16px;}
.mobile-panel__close{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--color-line);color:var(--color-ink);}
.mobile-nav{flex:1;overflow-y:auto;padding:22px 26px;display:flex;flex-direction:column;gap:8px;}
.mobile-nav a{display:flex;align-items:center;font-size:30px;line-height:1.2;font-weight:800;color:var(--color-ink);padding:12px 0;border-bottom:1px solid var(--color-line);gap:12px;}
.mobile-nav a i{font-size:15px;color:var(--color-primary);opacity:0;transition:opacity .3s;transform:translateX(0);}
.mobile-nav a:hover i{opacity:1;}
.mobile-nav a.current{color:var(--color-primary);}
.mobile-nav a.current::before{content:"";width:4px;height:24px;border-radius:4px;background:var(--color-primary);}
.mobile-panel__bottom{padding:22px 26px 30px;border-top:1px solid var(--color-line);}
.mobile-panel__bottom .btn{width:100%;}

.category-hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--color-line);
  background:linear-gradient(115deg,var(--color-bg) 5%,#fafaf7 42%,rgba(245,244,241,.88) 68%,rgba(245,244,241,.92) 100%),
  url("/assets/images/backpic/back-1.webp") center right/cover no-repeat;
}
.category-hero .container{position:relative;z-index:2;}
.category-hero__inner{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.95fr);gap:clamp(36px,5vw,84px);align-items:center;padding:clamp(56px,8vw,116px) 0;}
.category-hero__body{position:relative;z-index:2;}
.category-hero__body h1{font-size:clamp(38px,5.2vw,68px);line-height:1.16;letter-spacing:-.025em;font-weight:900;margin:22px 0 20px;}
.category-hero__body h1 .brand-name{display:block;color:var(--color-primary);}
.category-hero__lead{font-size:18px;line-height:1.9;color:var(--color-muted);max-width:560px;margin-bottom:34px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.btn-hero{min-height:56px;padding:0 30px;font-size:16px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-tag{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;color:#3d4043;background:rgba(255,255,255,.72);border:1px solid rgba(220,216,208,.8);border-radius:999px;padding:6px 12px;}
.hero-tag i{color:var(--color-primary);}
.category-hero__media{position:relative;z-index:1;max-width:520px;margin-left:auto;}
.media-frame{position:relative;border-radius:22px;overflow:hidden;background:var(--color-surface);border:1px solid var(--color-line);box-shadow:var(--shadow-float);}
.media-frame img{width:100%;aspect-ratio:5/4;object-fit:cover;}
.media-frame::after{content:"";position:absolute;inset:auto 0 0 0;height:46%;background:linear-gradient(to top,rgba(15,15,15,.55),rgba(15,15,15,0));}
.media-float{
  position:absolute;left:20px;bottom:20px;right:20px;z-index:3;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  color:#fff;font-size:13px;
}
.media-float span{display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap;}
.media-float i{color:var(--color-primary);}
.media-symbol{position:absolute;right:16px;top:16px;z-index:3;background:rgba(255,255,255,.88);border-radius:999px;padding:6px 11px;font-size:12px;font-weight:700;color:var(--color-primary);box-shadow:var(--shadow-card);}

.info-strip{border-bottom:1px solid var(--color-line);background:var(--color-surface);}
.info-strip__grid{display:grid;grid-template-columns:repeat(4,1fr);}
.info-strip__item{display:flex;gap:14px;align-items:center;padding:26px 18px;border-left:1px solid var(--color-line);min-height:104px;}
.info-strip__item:first-child{border-left:0;}
.info-strip__icon{width:46px;height:46px;flex-shrink:0;background:var(--color-primary-soft);color:var(--color-primary);border-radius:14px;display:inline-flex;align-items:center;justify-content:center;font-size:18px;}
.info-strip__text strong{display:block;font-size:15px;font-weight:800;line-height:1.3;}
.info-strip__text small{color:var(--color-muted);font-size:13px;margin-top:3px;display:block;line-height:1.45;}

.platform-grid{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:clamp(40px,7vw,100px);align-items:center;}
.platform-visual{position:relative;}
.platform-card{position:relative;border-radius:24px;overflow:hidden;background:var(--color-surface);box-shadow:var(--shadow-card);border:1px solid var(--color-line);}
.platform-card img{width:100%;aspect-ratio:4/3.4;object-fit:cover;transition:transform .55s var(--ease);}
.platform-visual:hover .platform-card img{transform:scale(1.02);}
.platform-card__badge{position:absolute;left:18px;top:18px;background:var(--color-ink);color:#fff;border-radius:999px;font-size:12px;font-weight:600;padding:5px 12px;display:inline-flex;align-items:center;gap:6px;}
.platform-note{
  margin-top:22px;background:var(--color-primary-soft);border:1px solid #f4c7ae;border-radius:16px;
  padding:18px 20px;display:flex;gap:12px;align-items:flex-start;
}
.platform-note i{color:var(--color-primary);font-size:20px;margin-top:2px;}
.platform-note span{color:var(--color-ink);font-size:14px;line-height:1.7;}
.point-list{margin-top:34px;}
.point-item{display:grid;grid-template-columns:52px 1fr;gap:18px;padding:22px 0;border-top:1px solid var(--color-line);}
.point-item:last-child{border-bottom:1px solid var(--color-line);}
.point-index{width:46px;height:46px;border-radius:14px;background:var(--color-surface);border:1px solid var(--color-line);display:inline-flex;align-items:center;justify-content:center;font-weight:900;font-size:15px;color:var(--color-primary);box-shadow:var(--shadow-card);}
.point-item h3{font-size:20px;font-weight:800;margin-bottom:7px;line-height:1.3;}
.point-item p{color:var(--color-muted);font-size:15px;line-height:1.75;max-width:520px;}

.route-section{position:relative;color:#fff;background:var(--color-ink);overflow:hidden;}
.route-section::after{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;background:rgba(232,87,17,.15);pointer-events:none;}
.route-inner{position:relative;z-index:2;}
.route-grid{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:clamp(40px,6vw,90px);align-items:end;}
.route-grid .route-explainer h2{color:#fff;}
.route-grid .route-explainer .section-title{color:#fff;margin-bottom:18px;}
.route-grid .route-explainer .section-caption{color:#B5B7BA;}
.route-list{margin-top:10px;}
.route-item{display:grid;grid-template-columns:74px 1fr auto;gap:22px;padding:30px 0;border-bottom:1px solid rgba(255,255,255,.12);}
.route-item__num{font-size:42px;line-height:1;font-weight:900;color:#fff;opacity:.22;display:inline-flex;align-items:center;letter-spacing:-.04em;}
.route-item:first-child .route-item__num{opacity:1;color:var(--color-primary);}
.route-body h3{color:#fff;font-size:22px;font-weight:800;margin-bottom:10px;}
.route-body p{color:#C6C8CA;font-size:15px;line-height:1.8;}
.route-go{align-self:center;}
.route-go a{color:var(--color-primary);background:rgba(255,255,255,.08);width:48px;height:48px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;font-size:16px;}
.route-go a:hover{background:var(--color-primary);color:#fff;}
.route-more{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.route-more-text{font-size:14px;color:#9B9FA3;max-width:400px;}

.qa-wrap{max-width:920px;margin:0 auto;}
.faq-head{margin-bottom:52px;}
.faq-list{border-top:1px solid var(--color-line);}
.faq-item{border-bottom:1px solid var(--color-line);}
.faq-item summary{
  cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;
  font-size:18px;font-weight:800;color:var(--color-ink);padding:25px 6px;gap:28px;transition:color .25s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--color-primary);}
.faq-item summary::after{
  content:"+";font-size:28px;font-weight:400;color:var(--color-primary);line-height:1;flex-shrink:0;
  transition:transform .3s var(--ease);
}
.faq-item[open] summary{color:var(--color-primary);}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 42px 26px 6px;color:var(--color-muted);font-size:16px;line-height:1.85;}
.faq-answer a{color:var(--color-primary);font-weight:600;border-bottom:1px solid transparent;}
.faq-answer a:hover{border-bottom-color:var(--color-primary);}
.faq-foot{margin-top:34px;text-align:center;color:var(--color-muted);font-size:14px;}

.final-cta{background:var(--color-surface);}
.cta-card{
  position:relative;overflow:hidden;display:grid;grid-template-columns:1.1fr .9fr;
  align-items:center;gap:34px;background:var(--color-primary);border-radius:30px;
  padding:clamp(34px,5vw,64px);
  box-shadow:0 24px 56px -24px rgba(201,68,10,.5);
}
.cta-card::after{
  content:"";position:absolute;right:-30px;top:-30px;width:220px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.14);pointer-events:none;
}
.cta-card::before{
  content:"";position:absolute;right:60px;bottom:-70px;width:180px;height:180px;border-radius:38px;
  border:24px solid rgba(255,255,255,.07);pointer-events:none;
}
.cta-copy{position:relative;z-index:2;color:var(--color-ink);}
.cta-copy .eyebrow{background:var(--color-ink);color:#fff;}
.cta-copy h2{font-size:clamp(28px,4vw,48px);font-weight:900;letter-spacing:-.025em;line-height:1.2;margin:18px 0 14px;color:var(--color-ink);}
.cta-copy p{color:rgba(21,22,23,.74);font-size:16px;max-width:500px;line-height:1.8;}
.cta-card-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;}
.cta-card-actions .btn{min-width:180px;}
.site-footer{background:var(--color-ink);color:#B9BCC0;margin-top:0;padding-top:60px;}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:clamp(26px,4vw,60px);padding-bottom:42px;}
.footer-brand .brand{box-shadow:none;margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text small{color:var(--color-primary);}
.footer-desc{font-size:14px;line-height:1.9;color:#9DA2A7;max-width:320px;margin-top:14px;}
.footer-col h4{color:#FFFFFF;font-size:15px;font-weight:800;margin-bottom:18px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-col a{display:flex;align-items:center;gap:9px;color:#AEB2B6;font-size:14px;padding:6px 0;line-height:1.7;}
.footer-col a i{color:var(--color-primary);font-size:12px;width:15px;}
.footer-col a:hover{color:var(--color-primary);transform:translateX(3px);}
.footer-bar{border-top:1px solid rgba(255,255,255,.1);padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:14px 32px;align-items:center;font-size:13px;color:#7C8186;}
.footer-bar a{color:var(--color-primary);}
.footer-bar a:hover{color:#fff;}
.footer-legal{text-align:center;color:#74797D;font-size:12px;border-top:1px solid rgba(255,255,255,.08);padding:16px 0 22px;width:100%;}

@media (min-width:1024px) and (max-width:1180px){
  .nav-link{padding-left:10px;padding-right:10px;font-size:14px;}
  .brand-text strong{font-size:18px;}
}
@media (max-width:1023px){
  .site-header{border-bottom-color:var(--color-line);}
  .site-nav{display:none;}
  .burger{display:inline-flex;}
  .header-cta{display:none;}
  .header-inner{height:60px;}
  .category-hero__inner{grid-template-columns:1fr;padding-top:48px;padding-bottom:32px;}
  .category-hero__media{max-width:500px;margin:24px auto 0;}
  .category-hero__media .media-frame{aspect-ratio:16/10;}
  .platform-grid{grid-template-columns:1fr;}
  .route-grid{grid-template-columns:1fr;gap:26px;}
  .info-strip__grid{grid-template-columns:1fr 1fr;}
  .info-strip__item{border-left:0;border-bottom:1px solid var(--color-line);}
  .info-strip__item:nth-last-child(-n+2){border-bottom:0;}
  .cta-card{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .container{padding-left:20px;padding-right:20px;}
  .brand-badge{width:32px;height:32px;border-radius:9px;font-size:17px;}
  .brand-text strong{font-size:18px;}
  .brand-text small{font-size:9px;letter-spacing:.14em;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;max-width:480px;}
  .category-hero__lead{font-size:16px;}
  .hero-tags{gap:8px;}
  .hero-tag{padding:5px 10px;font-size:12px;}
  .media-frame img{aspect-ratio:4/3;}
  .info-strip__grid{grid-template-columns:1fr;}
  .info-strip__item{min-height:0;padding:18px 0;border-bottom:1px solid var(--color-line);}
  .info-strip__item:nth-last-child(-n+2){border-bottom:1px solid var(--color-line);}
  .info-strip__item:last-child{border-bottom:0;}
  .section-head{margin-bottom:34px;}
  .platform-visual .platform-card img{aspect-ratio:4/3.2;}
  .point-item{grid-template-columns:1fr;gap:12px;}
  .route-item{grid-template-columns:1fr;gap:10px;padding:24px 0;}
  .route-item__num{font-size:34px;}
  .route-go{display:none;}
  .faq-item summary{font-size:16px;padding:19px 4px;}
  .faq-answer{padding:0 10px 20px 0;font-size:15px;}
  .cta-card{padding:30px 22px;border-radius:22px;}
  .cta-card-actions{flex-direction:column;width:100%;}
  .cta-card-actions .btn{width:100%;min-width:0;}
  .footer-top{grid-template-columns:1fr;gap:30px;}
  .footer-bar{flex-direction:column;align-items:flex-start;gap:8px;}
  .mobile-panel{width:88vw;}
}
@media (max-width:420px){
  .header-actions .burger{margin-left:6px;}
  .category-hero__body h1{font-size:34px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001s!important;transition-duration:.25s!important;}
  html{scroll-behavior:auto;}
  html.js .reveal{opacity:1;transform:none;}
}