/* roulang page: index */
:root{
  --brand-primary:#FF4D2E;
  --brand-primary-dark:#E03A1F;
  --brand-orange:#FF6A00;
  --brand-primary-soft:rgba(255,77,46,.1);
  --brand-dark:#171A21;
  --brand-graphite:#1F242E;
  --brand-accent:#6C4DF6;
  --bg-main:#F7F6F3;
  --bg-white:#FFFFFF;
  --bg-warm:#FFF3EE;
  --bg-deep:#16181D;
  --text-main:#2E3338;
  --text-body:#3F4550;
  --text-muted:#6F7580;
  --text-weak:#9AA0AA;
  --line-light:#ECEAE6;
  --line-medium:#DFDCD8;
  --shadow-sm:0 1px 3px rgba(23,26,33,.05);
  --shadow-card:0 4px 20px rgba(20,20,20,.06);
  --shadow-hover:0 8px 24px rgba(255,77,46,.1);
  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:18px;
  --radius-bubble:999px;
  --transition:all .25s ease;
  --font-family:"Inter","HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  background:var(--bg-main);
  color:var(--text-body);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font:inherit}
.container,.container-lg,.container-md,.container-sm,.container-xl{max-width:1200px}
:focus-visible{outline:3px solid rgba(255,77,46,.35);outline-offset:2px;border-radius:4px}

/* ========= Header + Nav ========= */
.site-header{
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-light);
  position:relative;
  z-index:100;
}
.header-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:76px;
  flex-wrap:wrap;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  font-size:23px;
  font-weight:800;
  color:var(--brand-dark);
  letter-spacing:-.3px;
}
.brand-logo .brand-mark{
  width:40px;
  height:40px;
  background:linear-gradient(135deg,var(--brand-primary),var(--brand-orange));
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-weight:900;
  font-size:20px;
  box-shadow:0 6px 16px rgba(255,77,46,.24);
}
.brand-logo small{
  font-size:14px;
  font-weight:600;
  color:var(--brand-primary);
  background:var(--brand-primary-soft);
  padding:2px 10px;
  border-radius:999px;
  margin-left:2px;
}
.header-search{
  flex:1 1 420px;
  max-width:560px;
  margin-left:20px;
  display:flex;
  align-items:center;
  background:#F1F0ED;
  border-radius:999px;
  padding:4px 6px 4px 18px;
  border:1px solid transparent;
  transition:all .25s ease;
}
.header-search:focus-within{
  background:#fff;
  border-color:var(--brand-primary);
  box-shadow:0 0 0 3px rgba(255,77,46,.15);
}
.header-search .search-inner{
  width:100%;
  display:flex;
  align-items:center;
  gap:8px;
}
.header-search svg{
  width:18px;
  height:18px;
  color:var(--text-weak);
  flex:0 0 auto;
}
.header-search input{
  flex:1;
  border:none;
  background:transparent;
  outline:none;
  font-size:15px;
  color:var(--text-main);
  min-width:0;
  padding:8px 0;
}
.header-search input::placeholder{color:#9AA0AA}
.header-search .search-btn{
  background:var(--brand-primary);
  border:none;
  color:#fff;
  border-radius:999px;
  padding:9px 24px;
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:all .2s ease;
  flex:0 0 auto;
}
.header-search .search-btn:hover{background:var(--brand-primary-dark)}
.main-nav{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:4px;
}
.main-nav a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 16px;
  border-radius:10px;
  color:var(--text-body);
  font-size:15px;
  font-weight:500;
  transition:all .2s ease;
  white-space:nowrap;
}
.main-nav a:hover{
  color:var(--brand-primary);
  background:var(--brand-primary-soft);
}
.main-nav a.active{
  color:var(--brand-dark);
  font-weight:700;
  background:rgba(255,77,46,.08);
}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:18px;
  right:18px;
  bottom:-1px;
  height:2px;
  background:var(--brand-primary);
  border-radius:2px;
}
.nav-toggle{
  display:none;
  width:46px;
  height:46px;
  border:none;
  border-radius:10px;
  background:var(--bg-main);
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  width:20px;
  height:2px;
  background:var(--brand-dark);
  margin:2px 0;
  border-radius:2px;
  display:block;
  transition:all .25s ease;
}
@media(max-width:991px){
  .header-wrap{min-height:70px}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .header-search{order:3;flex:0 0 100%;max-width:100%;margin-left:0;padding-bottom:0;padding-top:0}
  .header-search{padding:6px 0 12px 0;background:transparent}
  .header-search .search-inner{background:#F1F0ED;border-radius:999px;padding:4px 6px 4px 18px}
  .header-search:focus-within{background:transparent;border-color:transparent;padding:8px 0 12px 0}
  .header-search:focus-within .search-inner{background:#fff;box-shadow:0 0 0 3px rgba(255,77,46,.15);border:1px solid var(--brand-primary)}
  .main-nav{
    order:4;
    display:none;
    flex:0 0 100%;
    flex-direction:column;
    align-items:stretch;
    background:#fff;
    border:1px solid var(--line-light);
    border-radius:16px;
    padding:12px;
    margin:0 0 14px 0;
    box-shadow:0 10px 30px rgba(23,26,33,.06);
  }
  .main-nav.open{display:flex}
  .main-nav a{
    height:48px;
    justify-content:flex-start;
    border-radius:10px;
    font-size:16px;
    padding:0 18px;
  }
  .main-nav a.active::after{display:none}
  .main-nav a.active{background:var(--brand-primary-soft);color:var(--brand-primary)}
}
@media(max-width:575px){
  .brand-logo{font-size:20px;gap:8px}
  .brand-logo .brand-mark{width:36px;height:36px;font-size:18px;border-radius:10px}
  .brand-logo small{font-size:12px;padding:1px 8px}
}

/* ========= Hero ========= */
.hero-section{
  position:relative;
  background-size:cover;
  background-position:center;
  padding:110px 0 120px;
  overflow:hidden;
}
.hero-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg,rgba(23,26,33,.9) 0%,rgba(23,26,33,.76) 46%,rgba(23,26,33,.54) 100%);
}
.hero-section::after{
  content:"";
  position:absolute;
  width:420px;
  height:420px;
  right:-120px;
  bottom:-160px;
  background:radial-gradient(circle,rgba(255,106,0,.32),transparent 68%);
  border-radius:50%;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:3}
.hero-content{
  max-width:720px;
  color:#fff;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.9);
  font-size:14px;
  font-weight:600;
  padding:6px 16px;
  border-radius:999px;
  margin-bottom:24px;
  backdrop-filter:blur(6px);
}
.hero-eyebrow::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--brand-orange);
}
.hero-title{
  font-size:3rem;
  line-height:1.22;
  font-weight:800;
  color:#fff;
  letter-spacing:-.5px;
  margin-bottom:20px;
}
.hero-title em{
  font-style:normal;
  color:var(--brand-primary);
  position:relative;
}
.hero-subtitle{
  font-size:1.0625rem;
  line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:620px;
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  align-items:center;
}
.btn-site{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:48px;
  min-width:160px;
  padding:0 28px;
  border-radius:10px;
  border:1px solid transparent;
  font-size:16px;
  font-weight:700;
  cursor:pointer;
  text-align:center;
  transition:background .2s,transform .2s,box-shadow .2s;
}
.btn-primary-special{
  background:var(--brand-primary);
  color:#fff;
  box-shadow:0 8px 22px rgba(255,77,46,.3);
}
.btn-primary-special:hover{
  background:var(--brand-primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 30px rgba(255,77,46,.36);
}
.btn-ghost-special{
  background:rgba(255,255,255,.08);
  color:#fff;
  border-color:rgba(255,255,255,.4);
  min-width:150px;
}
.btn-ghost-special:hover{
  background:rgba(255,255,255,.16);
  border-color:rgba(255,255,255,.8);
  color:#fff;
  transform:translateY(-2px);
}
.hero-quick{
  display:flex;
  gap:32px;
  flex-wrap:wrap;
  margin-top:56px;
  padding-top:28px;
  border-top:1px solid rgba(255,255,255,.18);
}
.hero-quick-item{
  display:flex;
  align-items:flex-start;
  gap:12px;
}
.hero-quick-item .quick-line{
  width:3px;
  background:var(--brand-orange);
  border-radius:3px;
  height:34px;
  margin-top:4px;
}
.hero-quick-item strong{
  display:block;
  color:#fff;
  font-size:16px;
  font-weight:700;
}
.hero-quick-item span{
  display:block;
  color:rgba(255,255,255,.62);
  font-size:13px;
}
@media(max-width:991px){
  .hero-section{padding:70px 0 80px}
  .hero-title{font-size:2.3rem}
}
@media(max-width:575px){
  .hero-title{font-size:1.9rem}
  .hero-subtitle{font-size:.95rem}
  .hero-actions .btn-site{width:100%}
}

/* ========= Section Utility ========= */
.section-block{
  padding:86px 0;
}
.section-bg-white{background:#fff}
.section-bg-warm{background:linear-gradient(180deg,#FFF3EE 0%,#FFFFFF 100%)}
.section-bg-main{background:var(--bg-main)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:48px;
}
.section-head .eyebrow{
  display:inline-block;
  font-size:14px;
  font-weight:700;
  color:var(--brand-primary);
  background:var(--brand-primary-soft);
  padding:4px 14px;
  border-radius:999px;
  margin-bottom:14px;
}
.section-head h2{
  font-size:2.2rem;
  font-weight:800;
  color:var(--text-main);
  letter-spacing:-.5px;
  margin-bottom:10px;
  line-height:1.3;
}
.section-head h2 span{
  color:var(--brand-primary);
}
.section-head p.sub{
  color:var(--text-muted);
  font-size:1rem;
  max-width:560px;
  margin:0;
}
.section-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--brand-primary);
  font-weight:700;
  font-size:15px;
  border-radius:10px;
  padding:10px 16px;
  transition:all .2s ease;
}
.section-more:hover{
  background:var(--brand-primary-soft);
  color:var(--brand-primary-dark);
}
.section-more i{font-style:normal;transition:transform .2s}
.section-more:hover i{transform:translateX(4px)}
@media(max-width:767px){
  .section-block{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:32px}
  .section-head h2{font-size:1.8rem}
}

/* ========= Brand / 理念 ========= */
.brand-left{
  padding-right:30px;
}
.brand-left .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:var(--brand-primary-soft);
  color:var(--brand-primary);
  font-weight:700;
  font-size:14px;
  padding:6px 16px;
  border-radius:999px;
  margin-bottom:20px;
}
.brand-left h2{
  font-size:2.1rem;
  font-weight:800;
  color:var(--text-main);
  line-height:1.35;
  letter-spacing:-.5px;
  margin-bottom:20px;
}
.brand-line{
  width:42px;
  height:4px;
  background:var(--brand-primary);
  border-radius:4px;
  margin-bottom:24px;
}
.brand-left p{
  color:var(--text-muted);
  font-size:1rem;
  line-height:1.9;
  max-width:520px;
}
.brand-right{
  display:grid;
  gap:28px;
}
.brand-feature{
  display:flex;
  gap:18px;
  align-items:flex-start;
  background:#fff;
  border:1px solid var(--line-light);
  border-radius:16px;
  padding:26px;
  transition:all .3s ease;
}
.brand-feature:hover{
  box-shadow:var(--shadow-hover);
  border-color:transparent;
  transform:translateY(-3px);
}
.brand-feature .feature-icon{
  width:50px;
  height:50px;
  flex:0 0 auto;
  background:var(--brand-primary-soft);
  border-radius:15px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--brand-primary);
  font-size:24px;
  font-weight:600;
  line-height:1;
}
.brand-feature h3{
  font-size:17px;
  margin-bottom:6px;
  font-weight:700;
  color:var(--text-main);
}
.brand-feature p{
  font-size:15px;
  color:var(--text-muted);
  line-height:1.75;
  margin:0;
}
@media(max-width:991px){
  .brand-left{padding-right:0;margin-bottom:34px}
  .brand-right{gap:20px}
}

/* ========= Feature Cards ========= */
.feature-scroll{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.feature-card{
  background:#fff;
  border-radius:18px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease;
  height:100%;
  display:block;
}
.feature-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-hover);
}
.feature-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  position:relative;
  background:#f1f0ed;
}
.feature-thumb img,.feature-thumb .cover-fall{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.feature-card:hover .feature-thumb img{
  transform:scale(1.04);
}
.feature-thumb .fallback{
  width:100%;
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  border:2px dashed #d8d5d0;
  color:var(--text-weak);
  border-radius:2px;
  font-size:13px;
}
.feature-content{
  padding:22px 22px 26px;
}
.feature-tag{
  display:inline-block;
  color:var(--brand-primary);
  background:var(--brand-primary-soft);
  font-size:12px;
  font-weight:700;
  line-height:1;
  padding:6px 12px;
  border-radius:999px;
  margin-bottom:12px;
}
.feature-content h3{
  font-size:18px;
  font-weight:700;
  color:var(--text-main);
  line-height:1.5;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.feature-content p{
  color:var(--text-muted);
  font-size:14px;
  line-height:1.75;
  margin:0;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.feature-arrow{
  margin-top:16px;
  color:var(--brand-primary);
  font-weight:700;
  font-size:14px;
  display:inline-flex;
  gap:5px;
  align-items:center;
  opacity:0;
  transform:translateX(-6px);
  transition:all .25s ease;
}
.feature-card:hover .feature-arrow{
  opacity:1;
  transform:translateX(0);
}
@media(max-width:991px){
  .feature-scroll{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:575px){
  .feature-scroll{grid-template-columns:1fr}
  .feature-content{padding:18px}
}

/* ========= CMS News Section ========= */
.news-section{
  background:var(--bg-main);
  padding:86px 0;
}
.news-filter{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-bottom:28px;
}
.filter-chip{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:#ECEAE6;
  color:var(--text-body);
  border:none;
  font-size:14px;
  font-weight:600;
  padding:7px 18px;
  border-radius:999px;
  cursor:default;
}
.filter-chip.active{
  background:var(--brand-dark);
  color:#fff;
}
.news-list{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.news-item{
  display:flex;
  align-items:center;
  gap:26px;
  background:#fff;
  border-radius:14px;
  padding:18px 24px;
  box-shadow:var(--shadow-card);
  border-left:4px solid transparent;
  transition:all .25s ease;
}
.news-item:hover{
  border-left-color:var(--brand-primary);
  box-shadow:var(--shadow-hover);
}
.news-item-date{
  flex:0 0 120px;
  color:#8C909A;
  font-size:13px;
  font-weight:500;
  display:flex;
  flex-direction:column;
}
.news-item-date .date-day{
  font-size:22px;
  font-weight:800;
  color:var(--brand-dark);
  line-height:1.2;
}
.news-item-date .date-month{
  font-size:13px;
  color:var(--text-weak);
}
.news-item-body{
  flex:1;
  min-width:0;
}
.news-item-body .news-type{
  display:inline-block;
  color:var(--brand-primary);
  font-size:12px;
  font-weight:700;
  background:var(--brand-primary-soft);
  padding:3px 12px;
  border-radius:999px;
  margin-bottom:7px;
}
.news-item-body h3{
  font-size:16px;
  font-weight:700;
  color:var(--text-main);
  font-size:18px;
  line-height:1.5;
  margin-bottom:6px;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-item-body h3 a:hover{color:var(--brand-primary)}
.news-item-body p{
  font-size:14px;
  color:var(--text-muted);
  margin:0;
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-item-action{
  flex:0 0 auto;
}
.news-item-action a{
  display:inline-flex;
  align-items:center;
  background:#FFEDE8;
  color:#D93A1F;
  border-radius:8px;
  font-size:14px;
  font-weight:700;
  padding:10px 18px;
  transition:all .2s;
  white-space:nowrap;
}
.news-item-action a:hover{
  background:#D93A1F;
  color:#fff;
}
.news-empty{
  text-align:center;
  padding:56px 20px;
  background:#fff;
  border-radius:16px;
  box-shadow:var(--shadow-card);
}
.news-empty-box{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
}
.news-empty-box .empty-icon{
  width:58px;
  height:58px;
  border-radius:16px;
  background:var(--bg-main);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:28px;
  color:var(--text-weak);
}
.news-empty-box p{
  color:var(--text-muted);
  font-size:15px;
  margin:0;
}
@media(max-width:767px){
  .news-item{
    flex-direction:column;
    align-items:flex-start;
    padding:20px;
    gap:14px;
  }
  .news-item-date{
    flex-direction:row;
    gap:8px;
    align-items:baseline;
  }
  .news-item-body h3{-webkit-line-clamp:2}
}

/* ========= Advantages / data ========= */
.advantage-section{
  background:#fff;
}
.advantage-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}
.advantage-card{
  background:var(--bg-main);
  border-radius:16px;
  padding:30px 24px;
  position:relative;
  overflow:hidden;
  transition:all .3s;
  height:100%;
}
.advantage-card:nth-child(even){
  background:var(--bg-warm);
}
.advantage-card::before{
  content:attr(data-index);
  position:absolute;
  right:12px;
  top:-10px;
  font-size:70px;
  font-weight:900;
  color:rgba(255,77,46,.07);
  line-height:1;
  font-family:inherit;
}
.advantage-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.advantage-icon{
  width:50px;
  height:50px;
  background:#fff;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--brand-primary);
  font-size:22px;
  font-weight:700;
  margin-bottom:18px;
  box-shadow:var(--shadow-sm);
}
.advantage-card h3{
  font-size:17px;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:8px;
}
.advantage-card p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.75;
  margin:0;
}
@media(max-width:991px){
  .advantage-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:575px){.advantage-grid{grid-template-columns:1fr}}

/* ========= FAQ ========= */
.faq-section{
  background:var(--bg-main);
  padding:86px 0;
}
.faq-wrap{
  max-width:900px;
  margin:0 auto;
}
.faq-item{
  background:#fff;
  border-radius:14px;
  margin-bottom:14px;
  overflow:hidden;
  border:1px solid var(--line-light);
  transition:border-color .2s,box-shadow .2s;
}
.faq-item:hover{
  border-color:var(--brand-primary);
  box-shadow:var(--shadow-sm);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:22px 28px;
  font-size:16px;
  font-weight:700;
  color:var(--text-main);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  transition:background .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";
  flex:0 0 0;
  width:9px;
  height:9px;
  border-right:2px solid var(--brand-primary);
  border-bottom:2px solid var(--brand-primary);
  transform:rotate(45deg);
  transition:transform .25s ease;
  margin-top:-6px;
}
.faq-item[open] summary::after{transform:rotate(225deg);margin-top:6px}
.faq-item[open] summary{background:var(--bg-main);border-bottom:1px solid var(--line-light)}
.faq-item .faq-answer{
  padding:8px 28px 22px;
  color:var(--text-muted);
  font-size:15px;
  line-height:1.85;
  background:var(--bg-main);
  border-radius:0 0 14px 14px;
}

/* ========= CTA ========= */
.cta-section{
  background:var(--brand-dark);
  position:relative;
  padding:100px 0;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  width:340px;
  height:340px;
  left:12%;
  top:-180px;
  background:radial-gradient(circle,rgba(255,106,0,.45),transparent 65%);
  filter:blur(20px);
  pointer-events:none;
}
.cta-section::after{
  content:"";
  position:absolute;
  width:420px;
  height:420px;
  right:-100px;
  bottom:-160px;
  background:radial-gradient(circle,rgba(255,77,46,.28),transparent 65%);
  filter:blur(16px);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:800px;
  margin:0 auto;
}
.cta-inner .eyebrow{
  color:var(--brand-orange);
  font-size:14px;
  font-weight:700;
  letter-spacing:2px;
  text-transform:uppercase;
  margin-bottom:14px;
  display:block;
}
.cta-inner h2{
  color:#fff;
  font-size:2.6rem;
  font-weight:800;
  letter-spacing:-.5px;
  line-height:1.3;
  margin-bottom:18px;
}
.cta-inner p{
  color:rgba(255,255,255,.7);
  font-size:1.05rem;
  line-height:1.8;
  max-width:600px;
  margin:0 auto 36px;
}
.cta-btn-group{
  display:flex;
  justify-content:center;
  gap:16px;
  flex-wrap:wrap;
}
.cta-btn{
  min-width:180px;
  padding:0 32px;
  height:52px;
  border-radius:10px;
  font-size:16px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:var(--brand-primary);
  color:#fff;
  box-shadow:0 10px 34px rgba(255,77,46,.4);
  transition:all .25s ease;
  border:none;
}
.cta-btn:hover{
  background:#FF6A33;
  color:#fff;
  transform:translateY(-3px);
  box-shadow:0 16px 40px rgba(255,77,46,.48);
}
.cta-btn i{font-style:normal;font-size:20px;line-height:1}
@media(max-width:575px){
  .cta-inner h2{font-size:1.9rem}
  .cta-btn{width:100%}
}

/* ========= Footer ========= */
.site-footer{
  background:#16181D;
  color:#B9BEC7;
  padding-top:72px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand-logo{
  color:#fff;
  margin-bottom:18px;
}
.footer-brand .brand-logo .brand-mark{
  background:linear-gradient(135deg,var(--brand-primary),var(--brand-orange));
}
.footer-brand p{
  font-size:15px;
  color:#8F95A3;
  line-height:1.85;
  margin:0;
  max-width:320px;
}
.footer-title{
  color:#fff;
  font-size:16px;
  font-weight:700;
  margin-bottom:18px;
}
.footer-links li{
  margin-bottom:10px;
}
.footer-links a{
  color:#9CA1AD;
  font-size:14px;
  transition:color .2s;
}
.footer-links a:hover{
  color:var(--brand-orange);
}
.footer-note{
  border-top:1px solid rgba(255,255,255,.08);
  padding:28px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-note .copyright{
  color:#7C828E;
  font-size:14px;
}
.footer-note .footer-sub-links{
  display:flex;
  gap:22px;
}
.footer-note .footer-sub-links a{
  color:#7C828E;
  font-size:14px;
  transition:color .2s;
}
.footer-note .footer-sub-links a:hover{
  color:#fff;
}
@media(max-width:991px){
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:36px;
  }
}
@media(max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-note{flex-direction:column;justify-content:flex-start;align-items:flex-start}
}

/* roulang page: article */
:root {
            --brand: #FF4D2E;
            --brand-hover: #E03A1F;
            --brand-deep: #FF6A00;
            --ink: #171A21;
            --ink-2: #2A2D33;
            --muted: #6B7280;
            --bg: #F7F6F3;
            --card-bg: #FFFFFF;
            --border: #ECEAE6;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow: 0 4px 24px rgba(23, 26, 33, .06);
            --shadow-hover: 0 8px 30px rgba(255, 77, 46, .12);
            --font-main: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --font-num: "Inter", "SF Pro Display", system-ui, sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--ink);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
            margin: 0 auto;
        }
        .site-header {
            background: var(--ink);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(23, 26, 33, .36);
        }
        .header-wrap {
            display: flex;
            align-items: center;
            gap: 22px;
            padding-top: 18px;
            padding-bottom: 18px;
            flex-wrap: wrap;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 20px;
            color: #fff;
            letter-spacing: .5px;
        }
        .brand-logo small {
            font-size: 12px;
            font-weight: 500;
            color: rgba(255, 255, 255, .72);
            display: block;
            line-height: 1;
            margin-top: 2px;
            letter-spacing: 1.5px;
        }
        .brand-mark {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--brand-deep) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 21px;
            font-weight: 900;
            color: #fff;
            box-shadow: 0 4px 12px rgba(255, 77, 46, .36);
            flex-shrink: 0;
        }
        .header-search {
            flex: 1;
            min-width: 240px;
            max-width: 520px;
            margin: 0 auto;
        }
        .search-inner {
            display: flex;
            align-items: center;
            background: #F1F0ED;
            border-radius: 999px;
            overflow: hidden;
            transition: box-shadow 240ms;
        }
        .search-inner:focus-within {
            box-shadow: 0 0 0 3px rgba(255, 77, 46, .32), 0 0 0 1px var(--brand);
        }
        .search-inner svg {
            width: 18px;
            height: 18px;
            margin-left: 16px;
            color: #6B7280;
            flex-shrink: 0;
        }
        .search-inner input {
            flex: 1;
            background: transparent;
            border: none;
            outline: none;
            padding: 11px 12px;
            color: var(--ink);
            font-size: 14px;
            min-width: 0;
        }
        .search-inner input::placeholder {
            color: #999ca3;
        }
        .search-btn {
            background: var(--brand);
            border: none;
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 0 22px;
            height: 42px;
            border-radius: 999px;
            margin: 3px;
            cursor: pointer;
            transition: background 180ms;
        }
        .search-btn:hover {
            background: var(--brand-hover);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            background: transparent;
            border: none;
            width: 42px;
            height: 42px;
            padding: 8px;
            border-radius: 10px;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            height: 2px;
            width: 22px;
            background: #fff;
            border-radius: 3px;
            transition: transform 180ms, opacity 180ms;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
            margin-left: auto;
        }
        .main-nav a {
            color: rgba(255, 255, 255, .88);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 6px;
            position: relative;
            white-space: nowrap;
            transition: color 180ms;
        }
        .main-nav a::after {
            content: "";
            position: absolute;
            left: 8px;
            right: 8px;
            bottom: 0;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform 180ms;
        }
        .main-nav a:hover {
            color: #fff;
        }
        .main-nav a.active {
            color: #fff;
            font-weight: 700;
        }
        .main-nav a.active::after {
            transform: scaleX(1);
        }
        .page-hero {
            background: linear-gradient(135deg, #171A21 0%, #232833 70%, #2B1E22 100%);
            padding: 76px 0 60px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            width: 540px;
            height: 540px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 77, 46, .22) 0%, transparent 70%);
            top: -180px;
            right: -90px;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .52);
            margin-bottom: 18px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, .68);
        }
        .breadcrumb a:hover {
            color: var(--brand);
        }
        .breadcrumb-sep {
            color: rgba(255, 255, 255, .3);
            margin: 0 2px;
        }
        .page-hero h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin: 0 0 14px;
            letter-spacing: 1px;
        }
        .page-hero h1 span {
            color: var(--brand);
        }
        .page-hero .lead {
            font-size: 16px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .78);
            max-width: 640px;
            margin-bottom: 20px;
            font-weight: 400;
        }
        .hero-badges {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 24px;
        }
        .hero-badges .badge-item {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .08);
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 13px;
            color: rgba(255, 255, 255, .85);
            border-left: 2px solid var(--brand);
        }
        .hero-badges i {
            color: var(--brand);
        }
        .main-section {
            padding: 72px 0;
        }
        .section-title-wrap {
            margin-bottom: 36px;
        }
        .eyebrow {
            display: inline-block;
            background: rgba(255, 77, 46, .1);
            color: var(--brand);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--ink);
            margin-bottom: 12px;
        }
        .section-subtitle {
            color: var(--muted);
            font-size: 16px;
            max-width: 560px;
            line-height: 1.7;
        }
        .guide-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 30px;
            box-shadow: var(--shadow);
            transition: transform 240ms, box-shadow 240ms;
            height: 100%;
            border: 1px solid rgba(23, 26, 33, .03);
        }
        .guide-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .guide-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(255, 77, 46, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            font-size: 20px;
            margin-bottom: 18px;
        }
        .guide-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--ink);
        }
        .guide-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .flow-wrap {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 44px;
            box-shadow: var(--shadow);
            margin-top: 40px;
        }
        .flow-list {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 30px;
        }
        .flow-step {
            flex: 1;
            min-width: 160px;
            text-align: center;
            position: relative;
            padding: 20px 10px;
        }
        .flow-step .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--ink);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            margin: 0 auto 14px;
            font-family: var(--font-num);
        }
        .flow-step .step-title {
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 6px;
        }
        .flow-step .step-desc {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
        }
        .flow-step::after {
            content: "";
            position: absolute;
            top: 41px;
            right: -12px;
            width: 24px;
            height: 2px;
            background: repeating-linear-gradient(90deg, var(--brand) 0 6px, transparent 6px 10px);
        }
        .flow-step:last-child::after {
            display: none;
        }
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            margin-top: 20px;
        }
        .scene-item {
            background: #fff;
            border-radius: 14px;
            padding: 22px;
            border: 1px solid #EEECE8;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            transition: border-color 180ms;
        }
        .scene-item i {
            color: var(--brand);
            font-size: 18px;
            margin-top: 3px;
        }
        .scene-item strong {
            display: block;
            font-size: 15px;
            margin-bottom: 4px;
        }
        .scene-item span {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
            display: block;
        }
        .faq-block {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow);
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow 200ms;
        }
        .faq-block summary {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--ink);
        }
        .faq-block summary::-webkit-details-marker {
            display: none;
        }
        .faq-block summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 13px;
            color: var(--brand);
            transition: transform 200ms;
        }
        .faq-block[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-block .faq-body {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.85;
            border-top: 1px solid #F0EEEA;
            padding-top: 14px;
        }
        .content-split {
            background: var(--ink);
            color: #fff;
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }
        .content-split::before {
            content: "";
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 106, 0, .28) 0%, transparent 70%);
            top: -160px;
            left: 20%;
            pointer-events: none;
        }
        .content-split .split-inner {
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 46px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .content-split .lead2 {
            color: rgba(255, 255, 255, .7);
            font-size: 17px;
            line-height: 1.8;
            margin: 18px 0 22px;
        }
        .content-split h2 {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 8px;
        }
        .content-split h2 em {
            color: var(--brand);
            font-style: normal;
        }
        .feature-check {
            list-style: none;
            margin-bottom: 24px;
        }
        .feature-check li {
            display: flex;
            gap: 10px;
            align-items: center;
            padding: 6px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, .82);
        }
        .feature-check i {
            color: var(--brand);
            width: 20px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: 10px;
            height: 48px;
            padding: 0 28px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all 180ms;
            min-width: 140px;
            line-height: 1;
        }
        .btn-main {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 6px 20px rgba(255, 77, 46, .28);
        }
        .btn-main:hover {
            background: var(--brand-hover);
            color: #fff;
            box-shadow: 0 8px 26px rgba(255, 77, 46, .36);
        }
        .btn-outline-light {
            background: rgba(255, 255, 255, .08);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .35);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .14);
            color: #fff;
        }
        .dark-card {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border-radius: var(--radius-md);
            padding: 26px;
            height: 100%;
            transition: transform 200ms;
        }
        .dark-card:hover {
            transform: translateY(-4px);
        }
        .dark-card i {
            color: var(--brand);
            font-size: 22px;
            margin-bottom: 12px;
            display: inline-block;
        }
        .dark-card h3 {
            font-size: 17px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .dark-card p {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            line-height: 1.75;
        }
        .site-footer {
            background: #16181D;
            padding: 62px 0 0;
            color: #B9BEC7;
        }
        .site-footer .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-footer a {
            color: #B9BEC7;
            transition: color 180ms;
        }
        .site-footer a:hover {
            color: #fff;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            margin-top: 16px;
            color: #9BA0A8;
            max-width: 300px;
        }
        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 650;
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 10px;
        }
        .footer-links li a {
            font-size: 14px;
            opacity: .85;
        }
        .footer-links li a:hover {
            opacity: 1;
            padding-left: 2px;
        }
        .footer-note {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 22px 0 26px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-sub-links {
            display: flex;
            gap: 8px;
            font-size: 14px;
        }
        .footer-sub-links a {
            padding: 0 12px;
            border-left: 1px solid rgba(255, 255, 255, .2);
        }
        .footer-sub-links a:first-child {
            border-left: none;
        }
        @media (max-width: 991px) {
            .header-wrap {
                display: grid;
                grid-template-columns: 1fr auto 1fr;
                row-gap: 12px;
                align-items: center;
            }
            .brand-logo {
                grid-column: 1;
            }
            .nav-toggle {
                display: flex;
                grid-column: 3;
                justify-self: end;
                background: rgba(255, 255, 255, .08);
            }
            .header-search {
                grid-column: 1 / -1;
                grid-row: 2;
                max-width: 100%;
                margin: 0;
                order: 3;
            }
            .main-nav {
                display: none;
                grid-column: 1 / -1;
                flex-direction: column;
                align-items: stretch;
                background: #20242C;
                border-radius: 14px;
                padding: 10px;
                margin: 0;
                order: 4;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                display: flex;
                align-items: center;
                min-height: 46px;
                padding: 8px 16px;
                border-radius: 10px;
                white-space: normal;
            }
            .main-nav a::after {
                display: none;
            }
            .main-nav a.active,
            .main-nav a:hover {
                background: rgba(255, 77, 46, .14);
                color: #fff;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px 28px;
            }
        }
        @media (max-width: 767px) {
            .header-wrap {
                display: flex;
                flex-wrap: wrap;
            }
            .brand-logo {
                margin-right: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .page-hero {
                padding: 52px 0 40px;
            }
            .page-hero h1 {
                font-size: 25px;
            }
            .section-title {
                font-size: 24px;
            }
            .flow-wrap {
                padding: 24px 20px;
            }
            .flow-step::after {
                display: none;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .content-split .split-inner {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 520px) {
            .header-wrap {
                padding-top: 14px;
                padding-bottom: 14px;
            }
            .search-btn {
                padding: 0 14px;
                font-size: 13px;
            }
            .page-hero h1 {
                font-size: 22px;
            }
            .btn {
                width: 100%;
                margin-bottom: 8px;
            }
        }
        .text-muted-2 {
            color: var(--muted);
        }
        .img-cover {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
        }

/* roulang page: category1 */
:root {
      --brand: #FF4D2E;
      --brand-hover: #E03A1F;
      --brand-orange: #FF6A00;
      --brand-soft: #FFF3EE;
      --ink: #171A21;
      --ink-2: #2A2D33;
      --violet: #6C4DF6;
      --bg: #F7F6F3;
      --surface: #FFFFFF;
      --text: #333A42;
      --muted: #7B808A;
      --line: #EAE6E1;
      --radius-sm: 10px;
      --radius: 14px;
      --radius-lg: 22px;
      --shadow: 0 1px 3px rgba(23, 26, 33, .05);
      --shadow-hover: 0 12px 28px rgba(255, 77, 46, .08);
      --font-main: "Inter", "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-main);
      background: var(--bg);
      color: var(--text);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
      font-weight: 700;
      color: var(--ink);
      line-height: 1.35;
      margin-bottom: .75rem;
    }

    p {
      margin-bottom: 1rem;
    }

    button,
    input {
      font-family: inherit;
    }

    input:focus-visible,
    button:focus-visible,
    a:focus-visible {
      outline: 3px solid rgba(255, 77, 46, .35);
      outline-offset: 2px;
      border-radius: 10px;
    }

    .container {
      max-width: 1200px;
    }

    /* ============ header ============ */
    .site-header {
      background: var(--surface);
      position: sticky;
      top: 0;
      z-index: 1050;
      border-bottom: 1px solid #ECEAE7;
    }

    .header-wrap {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px 22px;
      min-height: 76px;
      padding-top: 10px;
      padding-bottom: 10px;
      position: relative;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      flex-shrink: 0;
      gap: 10px;
      color: var(--ink);
      font-weight: 800;
      font-size: 1.25rem;
      letter-spacing: .5px;
    }

    .brand-logo small {
      display: block;
      font-size: .62rem;
      font-weight: 600;
      color: var(--muted);
      letter-spacing: 2px;
      line-height: 1;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--brand), var(--brand-orange));
      color: #fff;
      display: grid;
      place-items: center;
      font-size: 1.1rem;
      font-weight: 800;
      box-shadow: 0 6px 16px rgba(255, 77, 46, .2);
    }

    .header-search {
      flex: 1 1 360px;
      max-width: 620px;
      min-width: 280px;
      order: 2;
    }

    .search-inner {
      display: flex;
      align-items: center;
      background: #F1F0ED;
      border-radius: 999px;
      padding: 4px 4px 4px 18px;
      border: 1px solid transparent;
      transition: border-color .2s, background .2s, box-shadow .2s;
    }

    .search-inner:focus-within {
      background: #fff;
      border-color: rgba(255, 77, 46, .3);
      box-shadow: 0 0 0 4px rgba(255, 77, 46, .08);
    }

    .search-inner svg {
      width: 20px;
      height: 20px;
      color: #8B8F99;
      flex-shrink: 0;
    }

    .search-inner input {
      flex: 1 1 auto;
      border: 0;
      background: transparent;
      padding: 8px 12px;
      font-size: .95rem;
      min-width: 60px;
    }

    .search-inner input:focus {
      outline: none;
    }

    .search-btn {
      background: var(--brand);
      color: #fff;
      border: 0;
      border-radius: 999px;
      padding: 8px 22px;
      font-weight: 600;
      font-size: .9rem;
      min-height: 38px;
      transition: background .2s;
      white-space: nowrap;
    }

    .search-btn:hover {
      background: var(--brand-hover);
    }

    .nav-toggle {
      display: none;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 46px;
      height: 46px;
      border: 0;
      background: #F6F4F1;
      border-radius: 12px;
      padding: 11px;
      margin-left: auto;
    }

    .nav-toggle span {
      display: block;
      height: 2px;
      width: 100%;
      background: var(--ink);
      border-radius: 4px;
      transition: all .25s ease;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      order: 3;
      flex-wrap: wrap;
    }

    .main-nav a {
      padding: 9px 14px;
      border-radius: 999px;
      color: var(--text);
      font-size: .93rem;
      font-weight: 500;
      transition: background .2s, color .2s;
      white-space: nowrap;
    }

    .main-nav a:hover {
      background: #F4F1ED;
      color: var(--ink);
    }

    .main-nav a.active {
      background: rgba(255, 77, 46, .12);
      color: var(--brand);
      font-weight: 650;
    }

    /* ============ category banner ============ */
    .cat-banner {
      position: relative;
      color: #fff;
      padding: 78px 0 64px;
      background-color: var(--ink);
      background-size: cover;
      background-position: center;
      overflow: hidden;
    }

    .cat-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(12, 14, 18, .88), rgba(23, 26, 33, .7) 70%, rgba(23, 26, 33, .34));
      z-index: 1;
    }

    .cat-banner .container {
      position: relative;
      z-index: 2;
    }

    .crumb {
      font-size: .85rem;
      color: rgba(255, 255, 255, .75);
      margin-bottom: 26px;
      display: flex;
      flex-wrap: wrap;
      gap: 4px 8px;
    }

    .crumb a {
      color: rgba(255, 255, 255, .8);
      transition: color .2s;
    }

    .crumb a:hover {
      color: #fff;
    }

    .crumb span {
      color: rgba(255, 255, 255, .5);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .2);
      border-radius: 999px;
      padding: 5px 14px;
      font-size: .8rem;
      font-weight: 500;
      color: #fff;
      margin-bottom: 16px;
    }

    .banner-inner {
      display: grid;
      grid-template-columns: minmax(0, 1.1fr) .9fr;
      align-items: center;
      gap: 48px;
    }

    .cat-banner h1 {
      color: #fff;
      font-weight: 800;
      font-size: clamp(2rem, 4vw, 3.15rem);
      line-height: 1.25;
      max-width: 15em;
      margin-bottom: 14px;
    }

    .cat-banner .lead-copy {
      color: rgba(255, 255, 255, .85);
      font-size: 1.02rem;
      max-width: 44em;
      margin-bottom: 28px;
    }

    .btn-main,
    .btn-light,
    .btn-ghost-light,
    .btn-dark-solid {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 24px;
      border-radius: var(--radius-sm);
      font-weight: 650;
      font-size: .97rem;
      transition: all .2s ease;
      border: 0;
    }

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

    .btn-main:hover {
      background: var(--brand-hover);
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(255, 77, 46, .22);
    }

    .btn-ghost-light {
      background: rgba(255, 255, 255, .08);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, .35);
    }

    .btn-ghost-light:hover {
      background: rgba(255, 255, 255, .18);
      border-color: rgba(255, 255, 255, .6);
    }

    .btn-dark-solid {
      background: var(--ink);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, .25);
    }

    .btn-dark-solid:hover {
      background: #0D0F13;
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 14px 26px rgba(0, 0, 0, .16);
    }

    .banner-points {
      background: rgba(255, 255, 255, .1);
      border: 1px solid rgba(255, 255, 255, .16);
      border-radius: var(--radius-lg);
      padding: 24px;
      backdrop-filter: blur(6px);
      display: grid;
      gap: 20px;
    }

    .banner-points .point {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      color: rgba(255, 255, 255, .9);
      font-size: .92rem;
    }

    .banner-points .point-icon {
      width: 34px;
      height: 34px;
      flex: 0 0 34px;
      background: #FF4D2E;
      border-radius: 9px;
      display: grid;
      place-items: center;
      color: #fff;
      font-weight: 800;
      font-size: .82rem;
    }

    .banner-points strong {
      display: block;
      color: #fff;
      font-size: .96rem;
      margin-bottom: 2px;
    }

    /* ============ sections ============ */
    .section-pad {
      padding: 88px 0;
    }

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

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

    .section-head {
      margin-bottom: 44px;
    }

    .section-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--brand);
      font-weight: 650;
      font-size: .82rem;
      letter-spacing: 1.2px;
      margin-bottom: 10px;
    }

    .section-eyebrow::before {
      content: "";
      width: 24px;
      height: 3px;
      background: var(--brand-orange);
      border-radius: 6px;
    }

    .section-title {
      font-size: clamp(1.7rem, 3vw, 2.45rem);
      font-weight: 780;
      color: var(--ink);
      margin-bottom: 12px;
    }

    .section-title .soft-line {
      display: block;
      width: 52px;
      height: 4px;
      background: var(--brand);
      border-radius: 4px;
      margin-top: 14px;
    }

    .section-desc {
      max-width: 760px;
      color: var(--muted);
      font-size: 1rem;
    }

    /* intro split block */
    .intro-split {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 64px;
      align-items: center;
    }

    .intro-split .left h2 {
      font-size: clamp(1.6rem, 2.8vw, 2.25rem);
    }

    .intro-list {
      display: grid;
      gap: 26px;
    }

    .intro-item {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }

    .intro-icon {
      width: 48px;
      height: 48px;
      flex: 0 0 48px;
      background: rgba(255, 77, 46, .1);
      color: var(--brand);
      border-radius: 14px;
      display: grid;
      place-items: center;
      font-size: 1.5rem;
      font-weight: 700;
    }

    .intro-item h4 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 5px;
    }

    .intro-item p {
      font-size: .92rem;
      color: var(--muted);
      margin-bottom: 0;
      line-height: 1.7;
    }

    /* scene cards */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scene-card {
      background: var(--surface);
      border-radius: var(--radius-lg);
      padding: 0;
      box-shadow: var(--shadow);
      overflow: hidden;
      transition: transform .25s ease, box-shadow .25s ease;
      height: 100%;
      border: 1px solid #ECEAE7;
    }

    .scene-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 18px 38px rgba(23, 26, 33, .09);
    }

    .scene-image {
      height: 190px;
      overflow: hidden;
    }

    .scene-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .45s;
    }

    .scene-card:hover .scene-image img {
      transform: scale(1.04);
    }

    .scene-body {
      padding: 24px;
    }

    .scene-body .tag {
      font-size: .76rem;
      font-weight: 600;
      color: var(--brand);
      background: var(--brand-soft);
      border-radius: 6px;
      padding: 3px 10px;
      display: inline-block;
      margin-bottom: 12px;
    }

    .scene-body h3 {
      font-size: 1.1rem;
      font-weight: 750;
      line-height: 1.4;
      margin-bottom: 10px;
    }

    .scene-body p {
      color: var(--muted);
      font-size: .9rem;
      line-height: 1.8;
      margin-bottom: 18px;
    }

    .scene-link {
      color: var(--brand);
      font-size: .9rem;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: gap .2s;
    }

    .scene-link:hover {
      color: var(--brand-hover);
      gap: 10px;
    }

    /* steps */
    .steps-band {
      background: var(--ink);
      color: #fff;
      position: relative;
      overflow: hidden;
    }

    .steps-band::after {
      content: "";
      position: absolute;
      right: -120px;
      top: -100px;
      width: 380px;
      height: 380px;
      background: radial-gradient(circle, rgba(255, 77, 46, .34), transparent 68%);
      pointer-events: none;
    }

    .steps-band .section-title,
    .steps-band h3 {
      color: #fff;
    }

    .steps-band .section-desc {
      color: rgba(255, 255, 255, .78);
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 26px;
      position: relative;
      z-index: 1;
    }

    .step-card {
      background: rgba(255, 255, 255, .06);
      border: 1px solid rgba(255, 255, 255, .1);
      border-radius: var(--radius-lg);
      padding: 28px 22px;
      transition: background .25s ease, transform .3s ease;
    }

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

    .step-num {
      width: 42px;
      height: 42px;
      margin-bottom: 18px;
      background: var(--brand);
      color: #fff;
      border-radius: 12px;
      font-size: 1rem;
      font-weight: 800;
      display: grid;
      place-items: center;
    }

    .step-card h3 {
      font-size: 1rem;
      margin-bottom: 12px;
    }

    .step-card p {
      color: rgba(255, 255, 255, .67);
      font-size: .88rem;
      line-height: 1.78;
      margin: 0;
    }

    /* category helper / trust banner */
    .trust-band {
      background: #fff;
      border-top: 1px solid #ECEAE7;
      border-bottom: 1px solid #ECEAE7;
      padding: 34px 0;
    }

    .trust-row {
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 18px;
    }

    .trust-item {
      flex: 1 1 200px;
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 8px 0;
      color: var(--text);
      font-weight: 550;
      font-size: .93rem;
    }

    .trust-item span {
      color: var(--brand-orange);
      font-size: 1.4rem;
    }

    /* FAQ */
    .faq-wrap {
      max-width: 980px;
      margin: 0 auto;
    }

    .faq-head {
      text-align: center;
      margin-bottom: 42px;
    }

    .faq-item {
      background: var(--surface);
      border: 1px solid #EAE6E1;
      border-radius: 14px;
      padding: 0;
      margin-bottom: 14px;
      transition: box-shadow .2s ease, border-color .2s;
    }

    .faq-item summary {
      list-style: none;
      cursor: pointer;
      padding: 21px 26px;
      font-weight: 650;
      color: var(--ink);
      font-size: 1rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }

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

    .faq-item[open] summary {
      border-bottom: 1px solid #F0EDEA;
    }

    .faq-item summary::after {
      content: "+";
      font-size: 1.5rem;
      font-weight: 400;
      color: var(--brand-orange);
      transition: transform .2s;
      flex: 0 0 auto;
    }

    .faq-item[open] summary::after {
      transform: rotate(45deg);
    }

    .faq-item .ans {
      padding: 6px 26px 22px;
      color: var(--muted);
      font-size: .94rem;
      line-height: 1.85;
    }

    /* CTA block */
    .cta-block {
      background: var(--ink);
      color: #fff;
      position: relative;
      overflow: hidden;
      padding: 84px 0;
    }

    .cta-block::after {
      content: "";
      position: absolute;
      left: 15%;
      right: 15%;
      bottom: -130px;
      height: 220px;
      background: radial-gradient(closest-side, rgba(255, 77, 46, .28), transparent);
      pointer-events: none;
    }

    .cta-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 840px;
      margin: 0 auto;
    }

    .cta-inner h2 {
      color: #fff;
      font-size: clamp(1.8rem, 3vw, 2.7rem);
      font-weight: 800;
      margin-bottom: 18px;
      line-height: 1.35;
    }

    .cta-inner p {
      color: rgba(255, 255, 255, .7);
      max-width: 680px;
      margin: 0 auto 34px;
      font-size: 1rem;
    }

    .cta-actions {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 14px;
    }

    /* ============ footer ============ */
    .site-footer {
      background: #16181D;
      color: #B9BEC7;
      padding: 64px 0 20px;
    }

    .site-footer .brand-logo {
      color: #fff;
      margin-bottom: 14px;
    }

    .site-footer .brand-logo small {
      color: rgba(255, 255, 255, .5);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.3fr 1fr 1fr 1fr;
      gap: 48px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, .08);
    }

    .footer-grid .footer-brand p {
      color: #9DA3AF;
      font-size: .9rem;
      max-width: 34em;
      margin-top: 14px;
      line-height: 1.8;
    }

    .footer-title {
      color: #fff;
      font-weight: 650;
      font-size: .95rem;
      margin-bottom: 18px;
      letter-spacing: .3px;
    }

    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 10px;
    }

    .footer-links li a,
    .footer-sub-links a {
      color: #B9BEC7;
      font-size: .9rem;
      transition: all .2s;
    }

    .footer-links li a:hover,
    .footer-sub-links a:hover {
      color: #fff;
      opacity: 1;
    }

    .footer-note {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 14px;
      padding-top: 22px;
    }

    .footer-sub-links {
      display: flex;
      gap: 20px;
    }

    .copyright {
      color: #7E8491;
      font-size: .84rem;
    }

    /* ============ media ============ */
    @media (max-width: 991.98px) {
      .header-wrap {
        justify-content: space-between;
      }

      .header-search {
        order: 3;
        flex-basis: 100%;
        max-width: 100%;
        min-width: 0;
      }

      .nav-toggle {
        display: flex;
      }

      .main-nav {
        order: 4;
        flex-basis: 100%;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        background: var(--surface);
        border: 1px solid #ECEAE7;
        border-radius: 16px;
        padding: 12px;
        margin-top: 4px;
        box-shadow: 0 18px 40px rgba(23, 26, 33, .08);
      }

      .main-nav.open {
        display: flex;
      }

      .main-nav a {
        padding: 13px 16px;
        font-size: 1rem;
        border-radius: 12px;
      }

      .banner-inner {
        grid-template-columns: 1fr;
        gap: 34px;
      }

      .cat-banner {
        padding: 56px 0 48px;
      }

      .intro-split {
        grid-template-columns: 1fr;
        gap: 36px;
      }

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

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

      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 38px;
      }
    }

    @media (max-width: 767.98px) {
      .container {
        padding-left: 18px;
        padding-right: 18px;
      }

      .section-pad {
        padding: 62px 0;
      }

      .cat-banner h1 {
        font-size: 1.9rem;
      }

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

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

      .step-card {
        margin-bottom: 0;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
    }

    @media (max-width: 520px) {
      .btn-main,
      .btn-ghost-light,
      .btn-dark-solid {
        width: 100%;
      }

      .banner-points {
        padding: 18px;
      }

      .header-wrap {
        gap: 10px;
      }

      .brand-logo {
        font-size: 1.1rem;
      }

      .search-inner input {
        min-width: 0;
      }

      .search-btn {
        padding: 8px 14px;
      }

      .trust-row {
        flex-direction: column;
      }

      .site-footer {
        padding-top: 44px;
      }
    }

/* roulang page: category2 */
:root{
  --primary:#FF4D2E;
  --primary-dark:#E03A1F;
  --primary-soft:#FFF0EB;
  --dark:#171A21;
  --dark-2:#1F232B;
  --ink:#20252E;
  --text:#29303B;
  --muted:#6C7280;
  --light:#B9BEC7;
  --bg:#F7F6F3;
  --card:#FFFFFF;
  --line:#E8E4DE;
  --radius:16px;
  --radius-sm:12px;
  --radius-lg:20px;
  --shadow:0 1px 3px rgba(23,26,33,.05);
  --shadow-card:0 4px 20px rgba(20,20,20,.06);
  --shadow-hover:0 12px 30px rgba(255,77,46,.12);
  --space-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body.no-animate *{animation:none!important;transition:none!important}
h1,h2,h3,h4,p,ul,ol,dl,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:inherit}
img{max-width:100%;display:block}
button,input,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
input:focus-visible,button:focus-visible,a:focus-visible{
  outline:3px solid rgba(255,77,46,.35);
  outline-offset:2px;
  border-radius:8px;
}
.container{max-width:1320px;margin:0 auto;padding-left:24px;padding-right:24px}
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:var(--dark);
  box-shadow:0 8px 28px rgba(23,26,33,.16);
}
.header-wrap{
  display:grid;
  grid-template-columns:minmax(170px,auto) minmax(320px,1fr) auto;
  column-gap:18px;
  align-items:center;
  min-height:82px;
  padding-top:6px;
  padding-bottom:6px;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:#fff;
  font-weight:800;
  font-size:21px;
  letter-spacing:.4px;
  line-height:1.2;
  white-space:nowrap;
}
.brand-logo:hover{color:#fff}
.brand-mark{
  flex:0 0 auto;
  width:40px;
  height:40px;
  border-radius:13px;
  background:var(--primary);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  font-weight:900;
  box-shadow:0 6px 16px rgba(255,77,46,.3);
}
.brand-logo small{
  display:block;
  font-size:11px;
  font-weight:500;
  letter-spacing:2.5px;
  color:rgba(255,255,255,.62);
  line-height:1;
  margin-top:3px;
}
.header-search{
  width:100%;
  max-width:560px;
  margin-left:auto;
  margin-right:auto;
}
.search-inner{
  display:flex;
  align-items:center;
  background:#F1F0ED;
  border-radius:999px;
  border:1px solid transparent;
  padding:5px 6px 5px 16px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-inner:focus-within{
  background:#fff;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(255,77,46,.18);
}
.search-inner svg{
  width:18px;
  height:18px;
  color:#666C7A;
  flex:0 0 auto;
}
.search-inner input{
  flex:1;
  min-width:0;
  border:0;
  outline:0;
  background:transparent;
  color:var(--ink);
  padding:9px 12px;
  font-size:15px;
}
.search-inner input::placeholder{color:#8A8F99}
.search-inner input::-webkit-search-cancel-button{display:none}
.search-btn{
  flex:0 0 auto;
  min-height:40px;
  border-radius:40px;
  background:var(--primary);
  color:#fff;
  font-size:14px;
  font-weight:700;
  padding:0 22px;
  letter-spacing:1px;
  transition:background .18s ease,transform .18s ease;
}
.search-btn:hover{background:var(--primary-dark)}
.search-btn:active{transform:scale(.97)}
.main-nav{
  justify-self:end;
  display:flex;
  align-items:center;
  gap:4px;
}
.main-nav a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 13px;
  color:rgba(255,255,255,.7);
  font-size:15px;
  font-weight:500;
  border-radius:11px;
  transition:color .2s ease,background .2s ease,box-shadow .2s ease;
  position:relative;
  letter-spacing:.2px;
}
.main-nav a:hover{
  color:#fff;
  background:rgba(255,255,255,.08);
}
.main-nav a.active{
  color:#fff;
  background:rgba(255,77,46,.18);
  box-shadow:inset 0 0 0 1px rgba(255,77,46,.24);
}
.nav-toggle{
  display:none;
  width:46px;
  height:46px;
  border-radius:12px;
  background:rgba(255,255,255,.06);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
  border:1px solid rgba(255,255,255,.08);
}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  background:#fff;
  border-radius:3px;
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.category-hero{
  position:relative;
  color:#fff;
  background:
    linear-gradient(100deg,rgba(14,17,24,.92) 10%,rgba(23,26,33,.66) 52%,rgba(23,26,33,.36) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  overflow:hidden;
}
.category-hero::after{
  content:"";
  position:absolute;
  inset:auto -80px -140px auto;
  width:430px;
  height:430px;
  background:radial-gradient(circle,rgba(255,77,46,.28),transparent 68%);
  pointer-events:none;
}
.category-hero-inner{
  position:relative;
  z-index:2;
  padding:78px 0 82px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  font-weight:600;
  letter-spacing:2px;
  color:rgba(255,255,255,.75);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
  padding:8px 18px;
  border-radius:999px;
}
.hero-eyebrow i{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--primary);
  display:inline-block;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.75);
  margin:18px 0 16px;
  padding:0;
}
.breadcrumb a{color:rgba(255,255,255,.75)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .crumb-sep{color:rgba(255,255,255,.45)}
.category-title{
  font-size:clamp(2.15rem,4vw,3.4rem);
  font-weight:900;
  line-height:1.3;
  letter-spacing:.5px;
  margin:8px 0 20px;
  max-width:860px;
}
.category-title span{
  color:var(--primary);
}
.hero-lead{
  max-width:680px;
  font-size:17px;
  line-height:1.9;
  color:rgba(255,255,255,.88);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:34px;
}
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 26px;
  border-radius:12px;
  font-size:15px;
  font-weight:700;
  gap:8px;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-main{
  color:#fff;
  background:var(--primary);
  min-width:168px;
  box-shadow:0 8px 24px rgba(255,77,46,.35);
}
.btn-main:hover{
  color:#fff;
  background:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(255,77,46,.4);
}
.btn-ghost{
  color:#fff;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.42);
  min-width:150px;
}
.btn-ghost:hover{
  color:#fff;
  background:rgba(255,255,255,.18);
}
.btn-main:active,.btn-ghost:active{transform:scale(.98)}
.hero-note{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  margin-top:46px;
  max-width:700px;
}
.hero-note li{
  border-left:3px solid var(--primary);
  padding-left:13px;
  color:rgba(255,255,255,.92);
}
.hero-note strong{
  display:block;
  font-size:15px;
  font-weight:700;
  color:#fff;
  letter-spacing:.4px;
}
.hero-note small{
  color:rgba(255,255,255,.65);
  font-size:12px;
  letter-spacing:1px;
}
.btn-subhome{
  color:rgba(255,255,255,.85);
  border-bottom:1px solid rgba(255,255,255,.4);
  font-size:15px;
  font-weight:500;
  padding-bottom:2px;
}
.content-section{padding:var(--space-section) 0}
.content-section.bg-white{background:#fff}
.section-head{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  align-items:flex-end;
  gap:18px;
  margin-bottom:38px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:2px;
  color:var(--primary);
  text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:10px;
  height:10px;
  border-radius:3px;
  background:var(--primary);
  transform:rotate(45deg);
}
.section-title{
  font-size:clamp(1.75rem,2.8vw,2.45rem);
  font-weight:800;
  color:var(--ink);
  line-height:1.35;
  margin:6px 0 12px;
  letter-spacing:.3px;
}
.title-bar{
  width:50px;
  height:4px;
  border-radius:99px;
  background:var(--primary);
  margin-top:16px;
}
.section-sub{
  font-size:15.5px;
  line-height:1.9;
  color:var(--muted);
  max-width:700px;
}
.section-head .section-sub{max-width:420px}
.link-more{
  color:var(--primary);
  font-weight:700;
  font-size:14.5px;
  border-bottom:1px solid transparent;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.link-more:hover{
  color:var(--primary-dark);
  border-bottom-color:currentColor;
}

.intro-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:40px 60px;
  align-items:start;
}
.intro-copy{
  grid-column:1/span 5;
}
.intro-points{
  grid-column:7/span 6;
}
.point-item{
  display:flex;
  gap:18px;
  align-items:flex-start;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}
.point-item:first-child{padding-top:0}
.point-item:last-child{border-bottom:0;padding-bottom:0}
.point-icon{
  flex:0 0 auto;
  width:50px;
  height:50px;
  border-radius:15px;
  background:var(--primary-soft);
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.point-icon svg{width:24px;height:24px}
.point-text h3{
  font-size:17px;
  font-weight:750;
  color:var(--ink);
  margin-bottom:6px;
  letter-spacing:.2px;
}
.point-text p{
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
}
.point-text p strong{color:var(--ink);font-weight:600}

.topics-section{
  background:var(--dark);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.section-orb{
  position:absolute;
  top:-180px;
  right:-120px;
  width:360px;
  height:360px;
  background:radial-gradient(circle,rgba(255,77,46,.22),transparent 66%);
  pointer-events:none;
}
.topics-section .section-title{color:#fff}
.topics-section .section-sub{color:rgba(255,255,255,.7)}
.topics-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:10px;
}
.topic-card{
  position:relative;
  background:#1F232B;
  border:1px solid rgba(255,255,255,.07);
  border-radius:var(--radius);
  padding:26px;
  min-height:220px;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.topic-card:hover{
  border-color:rgba(255,77,46,.6);
  background:#252A34;
  transform:translateY(-4px);
}
.topic-idx{
  position:absolute;
  right:14px;
  top:8px;
  font-size:46px;
  line-height:1;
  font-weight:900;
  color:rgba(255,255,255,.045);
  letter-spacing:0;
}
.topic-icon{
  width:46px;
  height:46px;
  border-radius:12px;
  background:rgba(255,77,46,.16);
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
}
.topic-icon svg{width:23px;height:23px}
.topic-card h3{
  font-size:17px;
  font-weight:700;
  margin-bottom:10px;
  color:#fff;
  letter-spacing:.3px;
}
.topic-card p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.62);
}
.topic-tag{
  margin-top:auto;
  padding-top:14px;
  font-size:12px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:4px;
  letter-spacing:1px;
}

.feature-section{
  background:var(--bg);
}
.feature-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.feature-card{
  background:var(--card);
  border-radius:18px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.feature-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(255,77,46,.3);
}
.feature-card .f-img{
  height:168px;
  overflow:hidden;
  background:#f0eee9;
  position:relative;
}
.feature-card .f-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease,opacity .45s ease;
}
.feature-card:hover .f-img img{
  transform:scale(1.04);
}
.f-img-fallback{
  width:100%;
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#9A9FA9;
}
.feature-body{
  padding:22px 22px 24px;
}
.feature-cat{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  color:var(--primary);
  background:var(--primary-soft);
  padding:4px 12px;
  border-radius:999px;
  letter-spacing:.8px;
  margin-bottom:12px;
}
.feature-body h3{
  font-size:18px;
  font-weight:750;
  color:var(--ink);
  line-height:1.55;
  margin-bottom:9px;
}
.feature-body p{
  font-size:14px;
  color:var(--muted);
  line-height:1.85;
}
.f-link{
  display:inline-flex;
  align-items:center;
  gap:4px;
  margin-top:14px;
  color:var(--primary);
  font-weight:700;
  font-size:13px;
  border-bottom:1px solid transparent;
}
.feature-card:hover .f-link{
  border-color:currentColor;
}
.step-note{
  grid-column:1/-1;
  background:var(--primary-soft);
  border-radius:var(--radius);
  padding:24px 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px 24px;
  color:var(--ink);
  font-size:15px;
  border-left:6px solid var(--primary);
}
.step-note strong{color:var(--primary-dark)}

.steps-section{
  background:#fff;
}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  counter-reset:step;
}
.step-item{
  position:relative;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 24px 24px;
  min-height:210px;
  transition:box-shadow .25s ease,background .25s ease,border-color .25s ease;
}
.step-item:hover{
  background:#fff;
  box-shadow:var(--shadow-card);
  border-color:rgba(255,77,46,.2);
}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:14px;
  background:var(--dark);
  color:#fff;
  font-size:15px;
  font-weight:800;
  margin-bottom:20px;
  letter-spacing:.3px;
}
.step-item h3{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:8px;
  letter-spacing:.2px;
}
.step-item p{
  font-size:14px;
  color:var(--muted);
  line-height:1.85;
}
.step-item::after{
  content:""; 
  position:absolute;
  right:16px;
  top:30px;
  width:18px;
  background:transparent;
}
.step-arrow{
  font-size:16px;
  color:var(--primary);
  font-weight:800;
  margin-left:8px;
}
.faq-section{
  background:var(--bg);
  padding:var(--space-section) 0;
}
.faq-inner{
  max-width:870px;
  margin:34px auto 0;
}
.faq-block{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-block:hover{
  border-color:rgba(255,77,46,.2);
  box-shadow:var(--shadow);
}
.faq-item summary{
  list-style:none;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  cursor:pointer;
  padding:20px 24px;
  font-size:16px;
  font-weight:650;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";
  flex:0 0 auto;
  width:18px;
  height:18px;
  border-right:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:rotate(45deg);
  transition:transform .25s ease,opacity .25s ease;
  margin-top:-8px;
}
.faq-item[open] summary::after{
  transform:rotate(225deg);
  margin-top:6px;
}
.faq-answer{
  padding:0 24px 22px;
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
}
.cta-band{
  position:relative;
  background:var(--dark);
  color:#fff;
  overflow:hidden;
  padding:78px 0;
}
.cta-band::before{
  content:"";
  position:absolute;
  left:18%;
  bottom:-90px;
  width:360px;
  height:260px;
  background:radial-gradient(ellipse,rgba(255,77,46,.4),transparent 70%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:760px;
  margin:0 auto;
}
.cta-inner .eyebrow{
  justify-content:center;
}
.cta-inner h2{
  font-size:clamp(1.9rem,3vw,2.7rem);
  font-weight:800;
  line-height:1.4;
  letter-spacing:.4px;
  margin-bottom:14px;
}
.cta-inner p{
  color:rgba(255,255,255,.72);
  font-size:16px;
  line-height:1.9;
  margin-bottom:30px;
}
.cta-inner .btn-main{
  min-width:220px;
  background:var(--primary);
}
.cta-inner .btn-main:hover{
  background:#FF5D3A;
}
.cta-inner .btn-line{
  background:transparent;
  border:1px solid rgba(255,255,255,.35);
  color:rgba(255,255,255,.9);
  min-width:160px;
}
.cta-inner .btn-line:hover{
  background:rgba(255,255,255,.12);
  color:#fff;
}

.site-footer{
  background:#111318;
  color:#B9BEC7;
  padding:68px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.3fr 1fr 1fr 1fr;
  gap:42px;
  margin-bottom:48px;
}
.footer-brand .brand-logo{
  color:#fff;
  margin-bottom:18px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.9;
  color:#9AA1AC;
  max-width:360px;
}
.footer-title{
  color:#fff;
  font-size:16px;
  font-weight:650;
  margin-bottom:18px;
}
.footer-links li{
  margin-bottom:10px;
}
.footer-links a{
  font-size:14px;
  color:#B9BEC7;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{
  color:#fff;
  padding-left:4px;
}
.footer-note{
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:24px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.copyright{font-size:13px;color:#858C97}
.footer-sub-links{
  display:flex;
  flex-wrap:wrap;
  gap:4px;
}
.footer-sub-links a{
  font-size:13px;
  color:#858C97;
  padding:4px 12px;
  border-left:1px solid rgba(255,255,255,.14);
}
.footer-sub-links a:first-child{border-left:0;padding-left:0}
.footer-sub-links a:hover{color:#fff}

@media (max-width:1199.98px){
  .header-wrap{
    grid-template-columns:minmax(170px,auto) minmax(270px,1fr) auto;
    column-gap:12px;
  }
  .main-nav a{
    font-size:14px;
    padding:0 10px;
  }
  .category-hero-inner{
    padding:64px 0 68px;
  }
  .topic-card{
    padding:22px 18px;
    min-height:240px;
  }
  .steps-grid{
    gap:12px;
  }
}
@media (max-width:991.98px){
  :root{
    --space-section:64px;
  }
  .header-wrap{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    min-height:72px;
    row-gap:10px;
    padding-top:10px;
    padding-bottom:10px;
  }
  .header-search{
    order:3;
    flex:0 0 100%;
    max-width:100%;
    margin:4px 0 2px;
  }
  .nav-toggle{
    order:2;
    display:flex;
    margin-left:auto;
  }
  .main-nav{
    order:4;
    display:none;
    flex:0 0 100%;
    flex-direction:column;
    background:#1D212A;
    border-radius:16px;
    padding:10px;
    margin-top:4px;
  }
  .main-nav.open{
    display:flex;
  }
  .main-nav a{
    width:100%;
    justify-content:flex-start;
    min-height:48px;
    padding:0 16px;
    background:transparent;
    border-radius:12px;
  }
  .mid-copy{
    margin-bottom:32px;
  }
  .intro-grid{
    grid-template-columns:1fr;
    gap:30px;
  }
  .intro-copy,.intro-points{
    grid-column:1;
  }
  .intro-copy{
    max-width:720px;
  }
  .intro-points{
    border-top:1px solid var(--line);
    padding-top:26px;
  }
  .feature-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .steps-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .topic-grid,.topics-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:32px 24px;
  }
}
@media (max-width:767.98px){
  .category-hero-inner{
    padding:44px 0 58px;
  }
  .hero-note{
    grid-template-columns:1fr;
  }
  .hero-note li{
    border-left-width:4px;
  }
  .section-head{
    flex-direction:column;
    align-items:flex-start;
  }
  .topics-grid{
    grid-template-columns:1fr;
  }
  .feature-grid{
    grid-template-columns:1fr;
  }
  .steps-grid{
    grid-template-columns:1fr;
  }
  .step-item{
    min-height:0;
  }
  .footer-grid{
    grid-template-columns:1fr;
  }
  .footer-note{
    flex-direction:column;
    align-items:flex-start;
  }
  .footer-sub-links a{
    border-left:0;
    padding-left:12px;
  }
}
@media (max-width:520px){
  .container{
    padding-left:18px;
    padding-right:18px;
  }
  body{
    font-size:15px;
  }
  .brand-logo{
    font-size:19px;
  }
  .brand-mark{
    width:36px;
    height:36px;
    border-radius:11px;
    font-size:20px;
  }
  .btn-main,.btn-ghost{
    width:100%;
  }
  .hero-actions{
    flex-direction:column;
  }
  .hero-note{
    margin-top:28px;
  }
  .section-title{
    font-size:1.65rem;
  }
  .topic-card{
    min-height:auto;
  }
  .faq-item summary{
    padding:16px 18px;
    font-size:15px;
  }
  .faq-answer{
    padding:0 18px 18px;
  }
  .content-section{
    padding:50px 0;
  }
}

/* roulang page: category3 */
:root{
  --brand:#FF4D2E;
  --brand-dark:#E03A1F;
  --brand-soft:#FFF3EE;
  --accent:#6C4DF6;
  --ink:#171A21;
  --bg:#F7F6F3;
  --card:#FFFFFF;
  --text:#333A42;
  --muted:#666C7A;
  --light-line:#EAE6E0;
  --shadow-sm:0 4px 14px rgba(23,26,33,.05);
  --shadow-lg:0 16px 40px rgba(23,26,33,.10);
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:22px;
  --font-main:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-main);
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;transition:color .2s ease;}
button,input{font-family:inherit;}
.container{max-width:1200px;}
.site-header{
  background:#fff;
  border-bottom:1px solid rgba(23,26,33,.06);
  position:sticky;
  top:0;
  z-index:1020;
  box-shadow:0 6px 22px rgba(23,26,33,.04);
}
.header-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  width:100%;
  padding-top:14px;
  padding-bottom:14px;
  position:relative;
}
.brand-logo{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:max-content;
  color:var(--ink);
  font-size:18px;
  font-weight:800;
  letter-spacing:.01em;
}
.brand-mark{
  width:38px;
  height:38px;
  background:var(--ink);
  color:#fff;
  border-radius:10px 4px 10px 4px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:18px;
  box-shadow:0 5px 12px rgba(23,26,33,.18);
}
.brand-logo small{font-size:11px;font-weight:600;color:#fff;background:var(--brand);border-radius:4px;padding:1px 6px;margin-left:4px;vertical-align:2px;}
.header-search{
  flex:1 1 auto;
  max-width:520px;
  margin:0 auto;
}
.search-inner{
  display:flex;
  align-items:center;
  background:#F2F1EE;
  border:1px solid transparent;
  border-radius:999px;
  padding:4px 4px 4px 18px;
  gap:8px;
  transition:border-color .2s, background .2s, box-shadow .2s;
}
.search-inner:focus-within{
  background:#fff;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(255,77,46,.16);
}
.search-inner svg{
  width:17px;
  height:17px;
  color:#7A7F88;
  flex:none;
}
.search-inner input{
  border:0;
  outline:0;
  background:transparent;
  padding:7px 0;
  flex:1;
  font-size:14px;
  min-width:0;
  color:var(--ink);
}
.search-inner input::placeholder{color:#979CA5;}
.search-btn{
  background:var(--brand);
  color:#fff;
  border:0;
  border-radius:999px;
  height:36px;
  padding:0 22px;
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:background .18s;
}
.search-btn:hover{background:var(--brand-dark);}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  background:transparent;
  border:0;
  width:44px;
  height:44px;
  padding:8px;
  cursor:pointer;
  margin-left:auto;
}
.nav-toggle span{
  height:2px;
  background:var(--ink);
  border-radius:2px;
  display:block;
  transition:transform .25s, opacity .25s;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  flex:none;
}
.main-nav a{
  display:block;
  padding:9px 16px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  color:#3A3F47;
  transition:background .18s,color .18s;
  position:relative;
  white-space:nowrap;
}
.main-nav a:hover{
  color:var(--brand);
  background:rgba(255,77,46,.08);
}
.main-nav a.active{
  background:rgba(255,77,46,.12);
  color:var(--brand);
}
@media (max-width: 991.98px){
  .header-wrap{flex-wrap:wrap;gap:12px;}
  .brand-logo{flex:1 1 auto;}
  .nav-toggle{display:flex;}
  .header-search{order:3;flex:0 0 100%;max-width:100%;}
  .main-nav{
    display:none;
    position:absolute;
    top:calc(100% - 4px);
    left:12px;
    right:12px;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    border-radius:16px;
    padding:12px;
    box-shadow:0 18px 40px rgba(23,26,33,.12);
    border:1px solid rgba(23,26,33,.05);
    z-index:100;
  }
  .main-nav.open{display:flex;}
  .main-nav a{padding:13px 18px;border-radius:10px;font-size:16px;}
}
@media (max-width: 575.98px){
  .header-search{order:2;padding-top:2px;}
  .brand-logo{font-size:16px;}
  .brand-mark{width:34px;height:34px;}
  .search-inner{padding-left:14px;}
}

/* ===== shared ===== */
.section-padding{padding:80px 0;}
.section-heading{margin-bottom:42px;}
.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  background:var(--brand-soft);
  color:var(--brand);
  border-radius:999px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  margin-bottom:16px;
}
.section-heading h2{
  font-size:30px;
  font-weight:800;
  color:var(--ink);
  line-height:1.3;
  margin:0 0 14px;
  letter-spacing:-.01em;
}
.section-heading p{
  color:var(--muted);
  margin:0;
  max-width:580px;
  line-height:1.8;
}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--brand);
  color:#fff;
  border:1px solid var(--brand);
  border-radius:12px;
  min-height:48px;
  padding:0 24px;
  font-size:15px;
  font-weight:700;
  gap:9px;
  transition:background .2s, transform .2s, box-shadow .2s, border-color .2s;
  box-shadow:0 8px 18px rgba(255,77,46,.16);
  outline-offset:2px;
}
.btn-main:hover{
  background:var(--brand-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 24px rgba(224,58,31,.22);
  border-color:var(--brand-dark);
}
.btn-main:focus-visible,
.search-btn:focus-visible,
.nav-toggle:focus-visible{
  outline:3px solid rgba(255,77,46,.35);
  outline-offset:2px;
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.08);
  color:#fff;
  border:1px solid rgba(255,255,255,.42);
  border-radius:12px;
  min-height:48px;
  padding:0 24px;
  font-size:15px;
  font-weight:700;
  gap:9px;
  transition:background .2s, transform .2s, border-color .2s;
}
.btn-ghost:hover{
  background:rgba(255,255,255,.16);
  border-color:#fff;
  transform:translateY(-2px);
}
/* ===== cate banner ===== */
.category-hero{
  background:
    linear-gradient(100deg,rgba(23,26,33,.94) 0%,rgba(23,26,33,.74) 50%,rgba(23,26,33,.44) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color:#fff;
  padding:58px 0 60px;
  position:relative;
  overflow:hidden;
}
.category-hero::before{
  content:"";
  position:absolute;
  width:380px;height:380px;
  background:radial-gradient(circle,rgba(255,106,0,.28),transparent 61%);
  left:-80px;bottom:-150px;
  pointer-events:none;
}
.breadcrumb-cate{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:7px;
  margin:0 0 26px;
  padding:0;
  list-style:none;
  font-size:13px;
  color:rgba(255,255,255,.66);
}
.breadcrumb-cate a{color:rgba(255,255,255,.82);transition:color .2s;}
.breadcrumb-cate a:hover{color:var(--brand);}
.breadcrumb-cate .sep{color:rgba(255,255,255,.45);}
.cate-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:48px;
  align-items:center;
  position:relative;z-index:2;
}
.cate-hero-info h1{
  font-size:38px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.02em;
  margin:0 0 18px;
  color:#fff;
}
.cate-hero-info h1 em{
  font-style:normal;
  display:block;
  margin-top:5px;
  color:var(--brand);
}
.cate-hero-info p{
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.82);
  margin:0 0 18px;
  max-width:580px;
}
.cate-hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  padding:0;
  list-style:none;
  margin:0 0 28px;
}
.cate-hero-tags li{
  font-size:13px;
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.16);
  border-radius:999px;
  padding:4px 13px;
  color:rgba(255,255,255,.88);
}
.cate-hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:13px;
}
.help-entry-panel{
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(8px);
  border-radius:22px;
  padding:26px 24px;
  color:#fff;
}
.help-entry-panel .panel-title{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.help-entry-panel .panel-title i{
  width:32px;height:32px;
  background:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:9px;
  font-size:14px;
}
.help-entry-list{
  display:grid;
  gap:8px;
  margin:0 0 18px;
  padding:0;
  list-style:none;
}
.help-entry-list a{
  display:flex;
  align-items:center;
  gap:10px;
  background:rgba(23,26,33,.18);
  border:1px solid rgba(255,255,255,.10);
  border-radius:12px;
  padding:11px 13px;
  color:rgba(255,255,255,.9);
  font-size:14px;
  transition:background .2s,border-color .2s,transform .2s;
}
.help-entry-list a:hover{
  background:rgba(255,77,46,.24);
  border-color:var(--brand);
  transform:translateX(3px);
}
.help-entry-list i{color:var(--brand);width:18px;font-size:13px;}
.help-entry-foot{
  font-size:13px;
  color:rgba(255,255,255,.62);
  border-top:1px dashed rgba(255,255,255,.2);
  padding-top:14px;
  margin:0;
  line-height:1.7;
}
@media(max-width:991.98px){
  .cate-hero-grid{grid-template-columns:1fr;}
  .category-hero{padding:46px 0;}
  .cate-hero-info h1{font-size:32px;}
}
@media(max-width:575.98px){
  .cate-hero-info h1{font-size:27px;}
  .section-padding{padding:58px 0;}
}

/* ===== topic channels ===== */
.channel-section{
  padding:84px 0 56px;
  background:var(--bg);
}
.channel-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:10px;
}
.channel-card{
  position:relative;
  background:var(--card);
  border-radius:var(--radius-md);
  padding:28px 24px 24px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  border:1px solid rgba(23,26,33,.04);
  transition:transform .25s ease,box-shadow .25s ease;
}
.channel-card::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:48px;height:4px;
  background:var(--brand);
  border-radius:0 4px 4px 0;
}
.channel-card:nth-child(even)::before{background:var(--accent);}
.channel-card:hover{
  transform:translateY(-5px);
  box-shadow:0 14px 32px rgba(255,77,46,.10);
}
.channel-icon{
  width:50px;height:50px;
  border-radius:14px;
  background:var(--brand-soft);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  margin-bottom:18px;
}
.channel-card:nth-child(even) .channel-icon{
  background:rgba(108,77,246,.08);
  color:var(--accent);
}
.channel-card h3{
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  margin:0 0 10px;
}
.channel-card p{
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
  margin:0 0 18px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.channel-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--brand);
  font-size:14px;
  font-weight:600;
  transition:gap .2s;
}
.channel-more:hover{color:var(--brand-dark);gap:12px;}
@media(max-width:991.98px){
  .channel-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:575.98px){
  .channel-grid{grid-template-columns:1fr;}
}

/* ===== support flow ===== */
.flow-section{
  background:#fff;
  padding:84px 0;
  border-top:1px solid var(--light-line);
  border-bottom:1px solid var(--light-line);
}
.flow-wrap{
  display:grid;
  grid-template-columns:0.9fr 1.7fr;
  gap:60px;
  align-items:center;
}
.flow-aside h2{
  font-size:30px;
  font-weight:800;
  line-height:1.35;
  color:var(--ink);
  margin:0 0 16px;
}
.flow-aside p{
  color:var(--muted);
  line-height:1.8;
  margin-bottom:28px;
}
.flow-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.flow-item{
  background:var(--bg);
  border:1px solid var(--light-line);
  border-radius:16px;
  padding:22px 20px;
  transition:border-color .2s,background .2s,transform .2s;
}
.flow-item:hover{
  border-color:rgba(255,77,46,.3);
  background:var(--brand-soft);
  transform:translateY(-3px);
}
.flow-step{
  display:block;
  font-size:12px;
  font-weight:800;
  letter-spacing:.08em;
  color:var(--brand);
  margin-bottom:10px;
}
.flow-item h4{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  margin:0 0 8px;
}
.flow-item p{
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
  margin:0;
}
@media(max-width:991.98px){
  .flow-wrap{grid-template-columns:1fr;gap:40px;}
}
@media(max-width:575.98px){
  .flow-list{grid-template-columns:1fr;}
  .flow-aside h2{font-size:25px;}
}

/* ===== coverage section ===== */
.coverage-section{
  background:var(--ink);
  color:#fff;
  padding:84px 0;
  overflow:hidden;
  position:relative;
}
.coverage-section::after{
  content:"";
  display:block;
  position:absolute;
  width:430px;height:430px;
  right:-160px;top:-120px;
  background:radial-gradient(circle,rgba(255,77,46,.22),transparent 65%);
  pointer-events:none;
}
.coverage-grid{
  display:grid;
  grid-template-columns:0.95fr 1.05fr;
  gap:66px;
  align-items:center;
  position:relative;z-index:2;
}
.coverage-copy h2{
  font-size:31px;
  line-height:1.35;
  font-weight:800;
  margin:0 0 18px;
  color:#fff;
}
.coverage-copy h2 span{
  color:var(--brand);
}
.coverage-copy p{
  color:rgba(255,255,255,.72);
  line-height:1.85;
  margin-bottom:24px;
}
.coverage-points{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:11px 24px;
  margin:0 0 30px;
  padding:0;
  list-style:none;
}
.coverage-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.9);
}
.coverage-points i{
  color:var(--brand);
  margin-top:4px;
}
.coverage-img{
  position:relative;
  border-radius:24px;
  overflow:hidden;
  box-shadow:0 24px 54px rgba(0,0,0,.28);
}
.coverage-img img{
  width:100%;
  height:420px;
  object-fit:cover;
}
.coverage-img::after{
  content:"";
  display:block;
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 44%,rgba(23,26,33,.48));
}
.img-caption{
  position:absolute;
  left:20px;bottom:18px;
  z-index:3;
  display:flex;
  align-items:center;
  gap:9px;
  color:#fff;
  font-size:14px;
  font-weight:600;
  background:rgba(23,26,33,.4);
  padding:9px 15px;
  border-radius:999px;
  backdrop-filter:blur(6px);
}
.img-caption i{color:var(--brand);}
@media(max-width:991.98px){
  .coverage-grid{grid-template-columns:1fr;gap:44px;}
  .coverage-img img{height:320px;}
}
@media(max-width:575.98px){
  .coverage-copy h2{font-size:25px;}
  .coverage-points{grid-template-columns:1fr;}
}

/* ===== FAQ ===== */
.faq-section{
  padding:84px 0;
  background:var(--bg);
}
.faq-center{
  max-width:860px;
  margin:0 auto;
}
.faq-center .section-heading{text-align:center;}
.faq-center .section-heading p{margin-left:auto;margin-right:auto;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:#fff;
  border-radius:16px;
  box-shadow:var(--shadow-sm);
  border:1px solid rgba(23,26,33,.04);
  transition:box-shadow .25s,border-color .25s;
}
.faq-item:hover{
  box-shadow:0 12px 30px rgba(23,26,33,.07);
  border-color:rgba(255,77,46,.14);
}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  gap:14px;
  padding:20px 24px;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .faq-num{
  width:30px;height:30px;
  flex:none;
  background:var(--brand-soft);
  color:var(--brand);
  border-radius:9px;
  font-size:13px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.faq-item summary .faq-arrow{
  margin-left:auto;
  width:28px;height:28px;
  flex:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:#F2F1EE;
  color:#7A7F88;
  font-size:12px;
  transition:transform .25s,background .25s,color .25s;
}
.faq-item[open] summary .faq-arrow{
  transform:rotate(180deg);
  background:var(--brand);
  color:#fff;
}
.faq-answer{
  padding:0 24px 22px 68px;
  margin:0;
  color:var(--muted);
  font-size:14px;
  line-height:1.9;
}
@media(max-width:575.98px){
  .faq-answer{padding-left:24px;}
  .faq-item summary{padding:18px 16px;}
  .faq-answer{padding:0 18px 20px 18px;}
}

/* ===== cta ===== */
.cta-area{
  background:linear-gradient(120deg,#171A21 0%,#232631 74%);
  padding:20px 0;
  position:relative;
  overflow:hidden;
  color:#fff;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
  padding:54px 0 40px;
  position:relative;z-index:2;
}
.cta-inner::before{
  content:"";
  position:absolute;
  left:-70px;
  top:-100px;
  width:260px;
  height:260px;
  background:rgba(255,77,46,.32);
  filter:blur(80px);
  z-index:0;
  pointer-events:none;
}
.cta-text{position:relative;z-index:2;}
.cta-text h2{
  font-size:30px;
  font-weight:800;
  color:#fff;
  margin:0 0 12px;
  letter-spacing:-.01em;
}
.cta-text p{
  color:rgba(255,255,255,.7);
  margin:0;
  line-height:1.8;
  font-size:15px;
  max-width:600px;
}
.cta-actions{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  position:relative;z-index:2;
}
.cta-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:50px;
  gap:10px;
  padding:0 28px;
  border-radius:12px;
  font-size:15px;
  font-weight:700;
  background:var(--brand);
  border:1px solid var(--brand);
  color:#fff;
  transition:background .2s,transform .2s;
  box-shadow:0 8px 18px rgba(255,77,46,.2);
}
.cta-btn:hover{background:var(--brand-dark);transform:translateY(-2px);color:#fff;}
.cta-btn.cta-line{
  background:transparent;
  border-color:rgba(255,255,255,.4);
  color:#fff;
  box-shadow:none;
}
.cta-btn.cta-line:hover{
  background:rgba(255,255,255,.09);
  border-color:#fff;
}
@media(max-width:767.98px){
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-text h2{font-size:25px;}
}

/* ===== footer shared ===== */
.site-footer{
  background:#101216;
  color:#B9BEC7;
  padding:66px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:42px;
  padding-bottom:44px;
}
.footer-brand .brand-logo{
  color:#fff;
  margin-bottom:16px;
  display:inline-flex;
}
.footer-brand p{
  color:#9AA2AF;
  font-size:14px;
  line-height:1.85;
  margin:0;
  max-width:320px;
}
.footer-title{
  color:#fff;
  font-size:16px;
  font-weight:700;
  margin-bottom:17px;
  letter-spacing:.02em;
}
.footer-links{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:10px;
}
.footer-links a{
  color:#9AA2AF;
  font-size:14px;
  transition:color .2s,padding-left .2s;
}
.footer-links a:hover{
  color:var(--brand);
  padding-left:3px;
}
.footer-note{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  color:#7C8492;
}
.footer-note a{
  color:#7C8492;
  transition:color .2s;
}
.footer-note a:hover{color:var(--brand);}
.footer-sub-links{
  display:flex;
  align-items:center;
  gap:8px;
}
.footer-sub-links a{
  padding-left:12px;
  position:relative;
}
.footer-sub-links a::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:1px;
  height:12px;
  transform:translateY(-50%);
  background:rgba(255,255,255,.18);
}
.footer-sub-links a:first-child::before{display:none;}
@media(max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media(max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration:.01ms !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}