/* roulang page: index */
:root{
  --color-bg:#f6f7f2;
  --color-surface:#ffffff;
  --color-primary:#0e241b;
  --color-primary-soft:#153528;
  --color-lime:#d9f276;
  --color-mint:#3fe8a1;
  --color-green:#10c979;
  --color-accent:#ff6b3d;
  --gradient-brand:linear-gradient(135deg,#d9f276 0%,#3fe8a1 48%,#10c979 100%);
  --text-muted:#617169;
  --text-weak:#7c8a80;
  --line:rgba(14,36,27,.08);
  --radius-sm:10px;
  --radius-card:20px;
  --radius-lg:28px;
  --radius-xl:36px;
  --shadow-card:0 10px 30px rgba(20,40,30,.06);
  --shadow-hover:0 18px 40px rgba(20,40,30,.12);
  --space-section:96px;
  --space-section-md:72px;
  --space-section-sm:48px;
  --font-base:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-base);
  background:var(--color-bg);
  color:var(--color-primary);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button,input{font-family:inherit}
.container{max-width:1280px}
.page-main{overflow:hidden}

.section{padding:var(--space-section) 0}
.section-soft{background:#edf0e8}
.section-head{margin-bottom:52px}
.section-title{
  font-size:calc(1.7rem + .3vw);
  font-weight:800;
  letter-spacing:.01em;
  line-height:1.25;
  margin:0 0 12px;
}
.section-sub{
  color:var(--text-muted);
  max-width:600px;
  margin:0;
  font-size:17px;
}

/* Header */
.topnav{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(246,247,242,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  font-size:20px;
  font-weight:800;
  line-height:1.2;
  color:var(--color-primary);
  letter-spacing:.01em;
}
.brand-mark{
  width:30px;
  height:30px;
  border-radius:9px;
  background:var(--gradient-brand);
  box-shadow:0 4px 14px rgba(16,201,121,.32);
  flex:none;
}
.brand-text span{color:var(--text-muted);font-weight:500}
.main-nav{
  display:flex;
  align-items:center;
  gap:34px;
  margin-left:auto;
  margin-right:34px;
}
.nav-item{
  position:relative;
  color:var(--color-primary);
  font-weight:500;
  font-size:15px;
  padding:6px 2px;
  transition:color .25s ease;
}
.nav-item:hover{color:var(--color-green)}
.nav-item.active{color:var(--color-primary)}
.nav-item.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-5px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--gradient-brand);
  transform:translateX(-50%);
}
.btn-download-nav{
  min-height:40px;
  padding:.5rem 1.35rem;
  border-radius:200px;
  background:var(--gradient-brand);
  color:var(--color-primary);
  font-weight:700;
  font-size:14px;
  border:0;
  box-shadow:0 6px 18px rgba(16,201,121,.25);
  display:inline-flex;
  align-items:center;
  transition:transform .25s ease,box-shadow .25s ease;
}
.btn-download-nav:hover{
  color:var(--color-primary);
  transform:translateY(-2px);
  box-shadow:0 10px 24px rgba(16,201,121,.35);
}
.menu-toggle{
  width:42px;
  height:42px;
  border:1px solid var(--line);
  background:var(--color-surface);
  border-radius:12px;
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  padding:0;
}
.menu-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--color-primary);
  border-radius:2px;
}
.mobile-menu{
  border-top:1px solid var(--line);
  background:rgba(246,247,242,.98);
  padding:10px 0 20px;
}
.mobile-menu .container{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.mobile-menu a{
  padding:12px 14px;
  font-size:16px;
  font-weight:600;
  color:var(--color-primary);
  border-radius:12px;
  transition:background .2s ease;
}
.mobile-menu a:hover{background:rgba(16,201,121,.08);color:var(--color-primary)}
.mobile-menu a.active{color:var(--color-green)}
.mobile-menu .mobile-download{
  margin-top:8px;
  background:var(--gradient-brand);
  text-align:center;
  color:var(--color-primary);
  font-weight:800;
}

/* Hero */
.hero{
  position:relative;
  padding:112px 0 96px;
  background:
    linear-gradient(135deg,rgba(246,247,242,.94) 0%,rgba(237,240,232,.82) 45%,rgba(246,247,242,.96) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero::before{
  content:"";
  position:absolute;
  right:6%;
  top:8%;
  width:290px;
  height:290px;
  background:radial-gradient(circle,rgba(211,242,118,.24) 0%,rgba(62,232,161,.08) 60%,transparent 100%);
  pointer-events:none;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.2em;
  color:var(--color-primary-soft);
  margin-bottom:22px;
}
.hero-eyebrow::before{
  content:"";
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--color-green);
  box-shadow:0 0 0 4px rgba(16,201,121,.12);
}
.hero-title{
  font-size:calc(2.1rem + 1.9vw);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.02em;
  margin:0 0 22px;
}
.hero-title .green-text{
  color:transparent;
  background:linear-gradient(135deg,#10b96b,#36c4c0);
  -webkit-background-clip:text;
  background-clip:text;
}
.hero-desc{
  color:var(--text-muted);
  font-size:18px;
  line-height:1.75;
  max-width:600px;
  margin:0 0 30px;
}
.hero-cta{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:44px;
}
.btn{
  min-height:52px;
  padding:.75rem 1.9rem;
  border-radius:200px;
  font-weight:650;
  font-size:15px;
  line-height:1.4;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:0;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease;
}
.btn-primary{
  background:var(--gradient-brand);
  color:var(--color-primary);
  box-shadow:0 10px 28px rgba(16,201,121,.26);
}
.btn-primary:hover{
  color:var(--color-primary);
  transform:translateY(-2px);
  box-shadow:0 16px 36px rgba(16,201,121,.35);
}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  background:rgba(255,255,255,.75);
  border:1.5px solid rgba(14,36,27,.16);
  color:var(--color-primary);
}
.btn-outline:hover{
  border-color:var(--color-green);
  background:rgba(16,201,121,.06);
  color:var(--color-primary);
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
}
.hero-stat .num{
  font-size:34px;
  font-weight:800;
  letter-spacing:-.03em;
  line-height:1;
  background:linear-gradient(120deg,#10c979,#0b8c6a);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-stat .label{
  display:block;
  margin-top:6px;
  color:var(--text-weak);
  font-size:13px;
  letter-spacing:.08em;
}
.hero-visual{
  position:relative;
  max-width:420px;
  margin-left:auto;
  border-radius:38px;
  background:var(--color-surface);
  padding:18px;
  box-shadow:0 30px 80px rgba(14,36,27,.16);
  border:1px solid rgba(14,36,27,.06);
  transform:rotate(1deg);
}
.hero-visual::after{
  content:"";
  position:absolute;
  right:-18px;
  bottom:-20px;
  width:120px;
  height:120px;
  border-radius:32px;
  background:linear-gradient(135deg,var(--color-lime),var(--color-mint));
  z-index:-1;
  opacity:.6;
}
.hero-appshot{
  width:100%;
  aspect-ratio:9/15;
  object-fit:cover;
  border-radius:24px;
}
.hero-visual-caption{
  background:#fff;
  border-radius:15px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:15px;
  position:absolute;
  left:-34px;
  bottom:28px;
  box-shadow:0 12px 30px rgba(14,36,27,.12);
  max-width:230px;
  border:1px solid rgba(14,36,27,.05);
}
.hero-visual-caption i{
  color:var(--color-green);
  font-size:20px;
}
.hero-visual-caption p{
  margin:0;
  font-size:13px;
  font-weight:600;
  color:var(--color-primary);
  line-height:1.5;
}

/* Feature slider */
.feature-shot-section{position:relative}
.shot-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:44px}
.shot-head .section-sub{margin:0}
.shot-count{font-size:15px;color:var(--text-muted);font-weight:600;white-space:nowrap}
.feature-carousel{
  background:var(--color-surface);
  border-radius:32px;
  border:1px solid var(--line);
  padding:50px 48px 48px;
  box-shadow:var(--shadow-card);
  position:relative;
  overflow:hidden;
}
.carousel-item .feature-slide{
  display:block;
}
.feature-slide .row{
  align-items:center;
  margin:0;
}
.feature-shot-img{
  border-radius:24px;
  overflow:hidden;
  box-shadow:0 12px 32px rgba(14,36,27,.08);
  border:1px solid var(--line);
}
.feature-shot-img img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
}
.feature-txt{
  padding-left:28px;
}
.feature-idx{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--color-green);
  margin-bottom:18px;
  line-height:1;
}
.feature-idx span{
  display:inline-block;
  width:32px;
  height:2px;
  background:var(--color-green);
  vertical-align:middle;
}
.feature-txt h3{
  font-size:26px;
  font-weight:800;
  line-height:1.3;
  margin-bottom:14px;
}
.feature-txt p{
  color:var(--text-muted);
  font-size:16px;
  max-width:420px;
  margin:0;
}
.carousel-control-prev,
.carousel-control-next{
  width:42px;
  height:42px;
  border-radius:50%;
  background:var(--color-surface);
  border:1px solid rgba(14,36,27,.1);
  color:var(--color-primary);
  font-size:24px;
  line-height:1;
  position:absolute;
  bottom:38px;
  right:34px;
  left:auto;
  top:auto;
  opacity:1;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 6px 16px rgba(14,36,27,.06);
  z-index:10;
}
.carousel-control-prev{
  right:88px;
}
.carousel-control-prev:hover,
.carousel-control-next:hover{
  background:var(--gradient-brand);
  color:var(--color-primary);
  opacity:1;
}
.carousel-control-prev span,
.carousel-control-next span{
  font-size:26px;
  margin-top:-3px;
}
.feature-carousel .carousel-indicators{
  position:absolute;
  bottom:50px;
  left:auto;
  right:190px;
  margin:0;
  justify-content:center;
  gap:6px;
}
.feature-carousel .carousel-indicators [data-bs-target]{
  width:6px;
  height:6px;
  border-radius:200px;
  background:rgba(14,36,27,.22);
  border:0;
  opacity:1;
  transition:width .25s ease,background .25s ease;
}
.feature-carousel .carousel-indicators .active{
  width:20px;
  background:var(--color-green);
}

/* Requirement */
.require-cards{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.req-card{
  background:var(--color-surface);
  border-radius:22px;
  padding:28px 22px 24px;
  border:1px solid transparent;
  box-shadow:var(--shadow-card);
  transition:box-shadow .25s ease,transform .25s ease;
}
.req-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-3px);
}
.req-icon{
  width:50px;
  height:50px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:16px;
  background:rgba(16,201,121,.14);
  color:var(--color-primary-soft);
  font-size:20px;
  margin-bottom:18px;
}
.req-card h3{
  font-size:18px;
  font-weight:750;
  margin-bottom:8px;
}
.req-card p{
  color:var(--text-muted);
  font-size:14px;
  margin:0;
}

/* FAQ */
.faq-width{max-width:960px;margin:0 auto}
.faq-item{
  border-bottom:1px solid var(--line);
  padding:30px 10px;
}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  display:flex;
  gap:16px;
  font-size:18px;
  font-weight:700;
  margin-bottom:8px;
  align-items:flex-start;
}
.faq-mark{
  flex:none;
  width:30px;
  height:30px;
  border-radius:10px;
  background:rgba(16,201,121,.14);
  color:var(--color-primary-soft);
  font-size:13px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
}
.faq-a{
  margin:0 0 0 46px;
  color:var(--text-muted);
  max-width:720px;
}

/* Reviews */
.review-grid{
  columns:2 360px;
  column-gap:22px;
}
.review-card{
  display:inline-block;
  width:100%;
  break-inside:avoid;
  background:var(--color-surface);
  border-radius:24px;
  border:1px solid rgba(14,36,27,.06);
  box-shadow:var(--shadow-card);
  padding:26px 26px 22px;
  margin-bottom:22px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.review-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
}
.review-stars{
  color:var(--color-accent);
  font-size:14px;
  letter-spacing:2px;
  margin-bottom:14px;
}
.review-text{
  color:var(--color-primary);
  font-size:16px;
  line-height:1.75;
  margin:0 0 20px;
}
.review-user{
  display:flex;
  align-items:center;
  gap:12px;
  border-top:1px solid rgba(14,36,27,.05);
  padding-top:16px;
}
.review-avatar{
  width:42px;
  height:42px;
  flex:none;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-weight:700;
  background:linear-gradient(135deg,#61bda1,#2ba97e);
}
.review-avatar.orange{
  background:linear-gradient(135deg,#f0a272,#f27d58);
}
.review-user .name{
  font-weight:700;
  color:var(--color-primary-soft);
  font-size:14px;
}
.review-user .role{
  font-size:13px;
  color:var(--text-weak);
}

/* News */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  background:var(--color-surface);
  border-radius:var(--radius-card);
  border:1px solid rgba(14,36,27,.06);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.news-card-link{
  display:flex;
  flex-direction:column;
  height:100%;
  padding:26px 26px 22px;
  color:var(--color-primary);
}
.news-card-meta{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
}
.news-cat{
  display:inline-block;
  background:rgba(16,201,121,.12);
  color:var(--color-primary-soft);
  font-size:13px;
  font-weight:650;
  padding:.28rem .85rem;
  border-radius:100px;
}
.news-card time{
  color:var(--text-weak);
  font-size:13px;
}
.news-card-title{
  font-size:20px;
  font-weight:750;
  line-height:1.5;
  margin:0 0 10px;
  transition:color .2s ease;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card:hover .news-card-title{color:var(--color-green)}
.news-card-text{
  color:var(--text-muted);
  font-size:14px;
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin:0 0 18px;
}
.news-more{
  margin-top:auto;
  font-size:14px;
  font-weight:650;
  color:var(--color-green);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.news-more .arrow{transition:transform .2s ease}
.news-card:hover .news-more .arrow{transform:translateX(5px)}
.news-empty{
  border:2px dashed rgba(14,36,27,.16);
  border-radius:24px;
  background:rgba(255,255,255,.6);
  text-align:center;
  color:var(--text-muted);
  padding:64px 30px;
  font-size:17px;
}

/* CTA */
.cta-section{
  padding:40px 0 100px;
}
.cta-card{
  background:linear-gradient(135deg,#0e241b 0%,#16372a 58%,#1b4333 100%);
  border-radius:40px;
  padding:60px 64px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-card::before{
  content:"";
  position:absolute;
  right:-110px;
  top:-110px;
  width:340px;
  height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(217,242,118,.22) 0%,rgba(62,232,161,.08) 45%,transparent 100%);
}
.cta-card::after{
  content:"";
  position:absolute;
  left:-70px;
  bottom:-140px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(16,201,121,.16),transparent 70%);
}
.cta-content{position:relative;z-index:2}
.cta-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:15px;
  margin-bottom:18px;
  color:#d9f276;
}
.cta-brand i{font-size:18px}
.cta-title{
  font-size:calc(1.8rem + .8vw);
  font-weight:800;
  line-height:1.25;
  margin:0 0 18px;
  max-width:660px;
}
.cta-desc{
  font-size:17px;
  line-height:1.7;
  color:rgba(255,255,255,.78);
  max-width:620px;
  margin-bottom:30px;
}
.cta-btn-group .btn-light{
  background:#fff;
  color:var(--color-primary);
  font-weight:750;
  border:1px solid transparent;
  min-height:54px;
}
.cta-btn-group .btn-light:hover{
  background:#eafbe9;
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(255,255,255,.14);
}
.cta-btn-group .btn-outline-light{
  background:rgba(255,255,255,.08);
  border:1.5px solid rgba(255,255,255,.35);
  color:#fff;
}
.cta-btn-group .btn-outline-light:hover{
  background:rgba(255,255,255,.16);
  color:#fff;
  transform:translateY(-2px);
}
.cta-meta{
  list-style:none;
  padding:0;
  margin:26px 0 0;
  display:flex;
  flex-wrap:wrap;
  gap:18px;
}
.cta-meta li{
  color:rgba(255,255,255,.8);
  font-size:14px;
}
.cta-meta i{
  color:var(--color-green);
  margin-right:6px;
}
.qr-zone{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:26px;
  padding:26px;
  text-align:center;
  backdrop-filter:blur(4px);
  position:relative;
  z-index:2;
  max-width:300px;
  margin-left:auto;
}
.qr-box{
  background:#fff;
  padding:14px;
  border-radius:20px;
  margin-bottom:15px;
  display:flex;
  justify-content:center;
}
.qr-box svg{width:170px;height:170px}
.qr-zone p{
  color:#fff;
  font-size:14px;
  margin:0;
  font-weight:600;
}

/* Footer */
.footer{
  background:#0b1c14;
  color:rgba(255,255,255,.7);
  padding:58px 0 30px;
}
.footer-top{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:46px;
  margin-bottom:48px;
}
.footer-brand .brand{
  color:#fff;
  margin-bottom:14px;
}
.footer-brand p{
  max-width:330px;
  color:rgba(255,255,255,.55);
  font-size:15px;
  line-height:1.75;
  margin:0;
}
.footer-col-title{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-links{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  color:rgba(255,255,255,.62);
  font-size:14px;
  display:inline-block;
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{
  color:#fff;
  transform:translateX(4px);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-size:14px;
  color:rgba(255,255,255,.4);
}

/* Forms */
.form-control{
  height:52px;
  border-radius:14px;
  border:1.5px solid rgba(14,36,27,.14);
  background:#fff;
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control:focus{
  border-color:var(--color-green);
  box-shadow:0 0 0 5px rgba(16,201,121,.12);
}

@media (max-width:1199px){
  .hero{padding:95px 0 80px}
  .feature-carousel{padding:44px 36px 40px}
  .feature-txt{padding-left:20px}
}
@media (max-width:991px){
  .section{padding:var(--space-section-md) 0}
  .hero{padding:68px 0 90px}
  .hero-visual{
    margin:70px auto 0;
    max-width:420px;
  }
  .feature-carousel{padding:38px 28px 34px}
  .feature-txt{padding:24px 0 0}
  .require-cards{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .qr-zone{margin:40px auto 0;max-width:320px}
  .cta-card{padding:50px 36px}
  .section-title{font-size:2rem}
}
@media (max-width:767px){
  .hero-title{font-size:2.1rem}
  .hero-stats{gap:18px}
  .hero-stat .num{font-size:30px}
  .feature-carousel .carousel-indicators{
    right:auto;
    left:32px;
    bottom:32px;
  }
  .carousel-control-prev{
    right:85px;
    bottom:34px;
  }
  .carousel-control-next{
    right:30px;
    bottom:34px;
  }
  .feature-carousel{padding-bottom:90px}
  .require-cards{grid-template-columns:1fr}
  .review-grid{columns:1}
  .news-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .cta-card{border-radius:28px;padding:44px 26px}
  .hero-visual-caption{left:-10px;bottom:-16px;max-width:200px}
}
@media (max-width:575px){
  :root{--space-section-sm:44px}
  .section{padding:var(--space-section-sm) 0}
  .section-title{font-size:1.7rem}
  .hero-title{font-size:1.75rem;letter-spacing:-.01em}
  .hero-desc{font-size:16px}
  .hero{padding:50px 0 76px}
  .btn{width:100%;min-height:52px}
  .hero-cta a:only-child{width:auto}
  .hero-stats{flex-direction:column;gap:16px}
  .feature-carousel{padding:26px 20px 88px;border-radius:24px}
  .cta-title{font-size:1.9rem}
  .cta-desc{font-size:16px}
  .qr-zone{max-width:100%}
}

/* roulang page: category1 */
:root {
  --color-bg: #F6F7F2;
  --color-surface: #FFFFFF;
  --color-primary: #0E241B;
  --color-primary-deep: #153528;
  --color-accent: #FF6B3D;
  --color-text: #22352C;
  --color-muted: #617169;
  --color-muted-2: #7C8A80;
  --color-border: rgba(14, 36, 27, 0.08);
  --gradient-brand: linear-gradient(135deg, #D9F276 0%, #3FE8A1 52%, #10C979 100%);
  --gradient-soft: radial-gradient(circle at 12% 20%, rgba(63,232,161,.12), transparent 36%), radial-gradient(circle at 88% 90%, rgba(217,242,118,.16), transparent 32%);
  --radius-sm: 10px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-xl: 36px;
  --shadow-card: 0 10px 30px rgba(20,40,30,.06);
  --shadow-hover: 0 18px 40px rgba(20,40,30,.12);
  --transition: .28s cubic-bezier(.2,.7,.25,1);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: #10A965; }
img { max-width: 100%; display: block; }
button { font-family: inherit; border: 0; background: none; cursor: pointer; }
input, textarea { font-family: inherit; }
:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(16,201,121,.25); border-radius: 6px; }
.container { max-width: 1280px; width: 100%; padding-left: 24px; padding-right: 24px; }
i.fa-bars, i.fa-regular { font-family: "Font Awesome 6 Free"; }
a:hover, .btn:hover, button:hover { transition: all var(--transition); }

/* Brand block */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--color-primary);
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 13px;
  background: var(--gradient-brand);
  box-shadow: 0 6px 16px rgba(16,201,121,.26);
  position: relative;
  flex: 0 0 auto;
}
.brand-mark::after {
  content: "";
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  right: 8px;
  top: 8px;
  background: rgba(255,255,255,.85);
}
.brand-text { font-size: 20px; }
.brand-text em { font-style: normal; color: #bfd9c3; }

/* Header */
.site-header {
  position: relative;
  z-index: 30;
  background: rgba(246,247,242,.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding-top: 12px;
  padding-bottom: 12px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  margin-left: auto;
}
.nav-item {
  position: relative;
  font-size: 16px;
  line-height: 1.4;
  font-weight: 500;
  color: #2E4539;
  padding: 10px 0 8px;
}
.nav-item::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: transparent;
  transform: scaleX(.4);
  transform-origin: left;
  transition: transform .3s ease, background .3s ease;
}
.nav-item:hover { color: var(--color-primary); }
.nav-item:hover::after { background: #10C979; transform: scaleX(1); }
.nav-item.active {
  color: var(--color-primary);
  font-weight: 700;
}
.nav-item.active::after {
  background: var(--gradient-brand);
  transform: scaleX(1);
  width: 28px;
  height: 4px;
  bottom: 0;
  border-radius: 20px;
}
.header-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: 100px;
  background: var(--color-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 6px 14px rgba(14,36,27,.12);
}
.header-download-btn i { font-size: 13px; color: #C9EFCE; }
.header-download-btn:hover { background: #153B2A; color: white; transform: translateY(-2px); }
.mobile-menu-toggle {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--color-border);
  background: white;
  font-size: 18px;
  color: #183126;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.mobile-panel {
  display: none;
  background: white;
  padding: 18px 24px 24px;
  border-bottom: 1px solid var(--color-border);
}
.mobile-panel a {
  display: block;
  padding: 14px 6px;
  font-size: 16px;
  font-weight: 600;
  border-bottom: 1px solid rgba(14,36,27,.06);
  color: var(--color-primary);
}
.mobile-panel a:last-child { border-bottom: 0; }
.mobile-panel .active { color: #10A965; }
.mobile-panel.open { display: block; }

/* Page hero */
.page-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-soft);
  pointer-events: none;
}
.page-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  top: -180px;
  width: 540px;
  height: 540px;
  background: radial-gradient(circle, rgba(63,232,161,.18), transparent 68%);
  z-index: 0;
}
.page-hero .container {
  position: relative;
  z-index: 2;
  padding-top: 68px;
  padding-bottom: 76px;
}
.crumb-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 24px;
}
.crumb-line a { color: #547062; }
.crumb-line a:hover { color: #10A965; }
.crumb-line .dot { width: 3px; height: 3px; background: #C9D3CB; border-radius: 50%; margin: 0 4px; }
.category-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  padding: 7px 16px;
  font-size: 13px;
  color: #2E6A48;
  font-weight: 600;
  margin-bottom: 20px;
  box-shadow: var(--shadow-card);
}
.category-tag i { color: #10C979; font-size: 8px; }
.page-hero h1 {
  font-size: 44px;
  line-height: 1.16;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -.02em;
  margin: 0 0 20px;
}
.page-hero-lead {
  max-width: 800px;
  font-size: 18px;
  color: var(--color-muted);
  line-height: 1.9;
  margin-bottom: 0;
}
.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 32px;
}
.metric-pill {
  background: white;
  border-radius: 18px;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(14,36,27,.04);
}
.metric-pill small {
  display: block;
  font-size: 12px;
  color: var(--color-muted-2);
  line-height: 1.4;
}
.metric-pill strong {
  font-size: 24px;
  line-height: 1.2;
  display: block;
  font-weight: 800;
  color: var(--color-primary);
}
.metric-ic {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #d9f8e4, #eef9ee);
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #10A965;
}

/* Layout */
.section {
  padding-top: 92px;
  padding-bottom: 92px;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #2E8B5D;
  font-size: 14px;
  font-weight: 650;
  letter-spacing: .01em;
  background: rgba(63,232,161,.1);
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 18px;
}
.section-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-primary);
  letter-spacing: -.01em;
  margin-bottom: 24px;
}
.section-sub-text {
  max-width: 760px;
  font-size: 16px;
  color: var(--color-muted);
  line-height: 1.8;
}
.split-block {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(14,36,27,.055);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .32s ease, box-shadow .32s ease;
}
.split-block:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.split-figure { flex: 1 1 44%; }
.split-figure img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 16 / 13; }
.split-content { flex: 1 1 56%; padding: 38px 40px; }
.split-content h3 { font-size: 24px; font-weight: 750; color: var(--color-primary); margin-bottom: 14px; }
.split-content p { color: var(--color-muted); font-size: 16px; margin-bottom: 18px; line-height: 1.85; }
.check-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.check-list li {
  display: flex;
  gap: 12px;
  font-size: 15px;
  line-height: 1.55;
  color: #2B3B32;
  align-items: flex-start;
}
.check-list .list-check {
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: linear-gradient(135deg, #EAFAD4, #DBF8E8);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #10A965;
  font-size: 11px;
  margin-top: 2px;
}
.list-check svg { color: #10B968; }

/* Requirement card */
.requirement-stack { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.requirement-item {
  background: var(--color-surface);
  border: 1px solid rgba(14,36,27,.06);
  border-radius: var(--radius-md);
  padding: 30px;
  box-shadow: var(--shadow-card);
  transition: .25s ease;
}
.requirement-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.req-index {
  font-size: 12px;
  font-weight: 800;
  color: #9FB8AA;
  letter-spacing: .02em;
  display: inline-block;
  margin-bottom: 16px;
}
.req-icon {
  width: 46px;
  height: 46px;
  background: #EAF9F0;
  color: #147A4D;
  border-radius: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 21px;
  margin-bottom: 20px;
}
.requirement-item h3 { font-size: 18px; font-weight: 750; color: var(--color-primary); margin-bottom: 12px; }
.requirement-item p { color: var(--color-muted); font-size: 15px; margin-bottom: 12px; line-height: 1.75; }
.req-note { font-size: 13px; color: var(--color-muted-2); }

/* Plan panel */
.download-route { display: flex; flex-direction: column; gap: 16px; }
.route-card {
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid rgba(14,36,27,.05);
  box-shadow: var(--shadow-card);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  gap: 22px;
  transition: all .25s ease;
}
.route-card:hover { transform: translateX(6px); box-shadow: var(--shadow-hover); border-color: rgba(16,201,121,.18); }
.route-ic {
  width: 62px;
  height: 62px;
  flex: 0 0 62px;
  border-radius: 20px;
  background: linear-gradient(135deg, #DDFAEC, #EAF6D4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: #0E7A48;
}
.route-content { flex: 1; }
.route-content .route-name { font-size: 20px; font-weight: 750; color: var(--color-primary); margin-bottom: 6px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.route-content p { margin: 0; color: var(--color-muted); max-width: 800px; font-size: 15px; line-height: 1.7; }
.route-badge {
  background: var(--color-bg);
  color: #4B6B58;
  padding: 5px 12px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

/* Highlight band */
.media-band {
  padding: 86px 0;
  background-image: linear-gradient(90deg, rgba(14,36,27,.82), rgba(25,60,45,.7)), url("/assets/images/backpic/back-1.png");
  background-position: center;
  background-size: cover;
  background-attachment: fixed;
  color: #fff;
}
.media-band .container { max-width: 1160px; }
.media-band-inner { display: flex; justify-content: space-between; gap: 40px; align-items: center; flex-wrap: wrap; }
.media-band h2 { font-size: 28px; font-weight: 800; margin-bottom: 6px; color: white; }
.media-band p { color: rgba(255,255,255,.75); max-width: 650px; }
.media-band-stats { display: flex; gap: 30px; flex-wrap: wrap; }
.media-band-stats span { font-size: 36px; font-weight: 800; color: #D9F276; display: block; line-height: 1.25; }
.media-band-stats small { color: rgba(255,255,255,.7); font-size: 14px; display: block; }

/* FAQ */
.faq-list { max-width: 980px; }
.faq-inner { border-bottom: 1px solid rgba(14,36,27,.08); padding: 22px 0; }
.faq-inner:first-child { border-top: 1px solid rgba(14,36,27,.08); }
.faq-q { display: flex; gap: 14px; justify-content: space-between; align-items: center; font-size: 17px; font-weight: 650; color: var(--color-primary); line-height: 1.5; }
.faq-q .faq-toggle { color: var(--color-accent); font-size: 14px; height: 28px; }
.faq-body { color: var(--color-muted); font-size: 15px; margin-top: 10px; padding-left: 32px; max-width: 900px; }
.faq-body p { margin-bottom: 0; }

/* Light CTA */
.light-cta {
  margin-top: 24px;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 50px 64px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
  border: 1px solid rgba(14,36,27,.05);
  background-image: var(--gradient-soft);
}
.cta-copy h2 { font-size: 26px; font-weight: 800; color: var(--color-primary); margin-bottom: 6px; }
.cta-copy p { font-size: 15px; color: var(--color-muted); margin: 0; max-width: 620px; }
.btn-primary-custom {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 54px;
  padding: 0 32px;
  background: var(--gradient-brand);
  color: var(--color-primary);
  font-weight: 800;
  border-radius: 100px;
  font-size: 16px;
  border: 0;
  white-space: nowrap;
  box-shadow: 0 10px 24px rgba(20,170,105,.15);
  transition: all .25s ease;
}
.btn-primary-custom:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(20,170,105,.28); color: var(--color-primary); }
.btn-primary-custom:active { transform: translateY(-1px); }
.btn-ghost-custom {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 54px;
  padding: 0 32px;
  border: 1.5px solid rgba(14,36,27,.18);
  background: transparent;
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 700;
  border-radius: 100px;
  transition: all .25s ease;
}
.btn-ghost-custom:hover { background: rgba(16,201,121,.08); color: var(--color-primary); border-color: #1AB17D; transform: translateY(-2px); }

/* Footer */
.footer {
  background: var(--color-primary);
  padding: 68px 0 30px;
  color: rgba(255,255,255,.72);
  margin-top: 20px;
}
.footer .container { max-width: 1280px; }
.footer-top { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 46px; }
.footer-brand { max-width: 380px; }
.footer-brand .brand { color: #fff; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,.6); line-height: 1.8; }
.footer-col-title { font-size: 15px; font-weight: 750; color: #fff; margin-bottom: 14px; }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-links li, .footer-links a { font-size: 14px; color: rgba(255,255,255,.64); line-height: 1.5; }
.footer-links a { display: inline-block; transition: all .2s; }
.footer-links a:hover { color: #fff; transform: translateX(4px); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: rgba(255,255,255,.45);
}

@media (min-width: 1200px) {
  .container { max-width: 1280px; }
}
@media (max-width: 1199.98px) {
  .split-content { padding: 30px; }
  .requirement-stack { grid-template-columns: repeat(3, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 991.98px) {
  .section { padding-top: 72px; padding-bottom: 72px; }
  .main-nav.d-none.d-lg-flex { display: none !important; }
  .header-download-btn.d-none.d-sm-inline-flex { display: none !important; }
  .mobile-menu-toggle { display: inline-flex !important; }
  .page-hero .container { padding-top: 48px; padding-bottom: 56px; }
  .page-hero h1 { font-size: 36px; }
  .split-block { flex-direction: column; }
  .split-figure img { aspect-ratio: 16 / 10; }
  .requirement-stack { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 767.98px) {
  .brand-text { font-size: 18px; }
  .section { padding-top: 56px; padding-bottom: 56px; }
  .page-hero h1 { font-size: 30px; }
  .page-hero-lead { font-size: 16px; }
  .hero-metrics { gap: 12px; flex-direction: column; }
  .route-card { flex-direction: column; align-items: flex-start; }
  .split-content { padding: 28px 22px; }
  .requirement-stack { grid-template-columns: 1fr; }
  .requirement-item { padding: 22px 24px; }
  .media-band { background-attachment: scroll; }
  .light-cta { padding: 34px 28px; }
  .footer-top { grid-template-columns: 1fr; gap: 24px; }
  .media-band-inner { flex-direction: column; }
  .btn-primary-custom { width: 100%; }
}
@media (max-width: 575.98px) {
  .container { padding-left: 18px; padding-right: 18px; }
  .header-inner { min-height: 66px; }
  .page-hero .container { padding-top: 38px; padding-bottom: 40px; }
  .page-hero h1 { font-size: 27px; }
  .category-tag { font-size: 12px; padding: 6px 12px; }
  .section-title { font-size: 24px; }
  .split-content { padding: 24px 18px; }
  .media-band-stats span { font-size: 28px; }
}

/* roulang page: article */
:root {
  --color-bg: #F6F7F2;
  --color-surface: #FFFFFF;
  --color-primary: #0E241B;
  --color-primary-2: #153528;
  --color-deep: #0A1B13;
  --color-brand-1: #D9F276;
  --color-brand-2: #3FE8A1;
  --color-brand-3: #10C979;
  --color-accent: #FF6B3D;
  --color-text: #0E241B;
  --color-text-secondary: #617169;
  --color-border: rgba(14, 36, 27, 0.08);
  --radius-sm: 10px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-xl: 36px;
  --shadow-card: 0 10px 30px rgba(20, 40, 30, 0.06);
  --shadow-hover: 0 18px 40px rgba(20, 40, 30, 0.12);
  --gradient-brand: linear-gradient(135deg, #D9F276 0%, #3FE8A1 48%, #10C979 100%);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.modal-open,
body:has(.modal.show) {
  padding-right: 0 !important;
}

p {
  margin: 0 0 1em;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 0.5em;
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

a:hover {
  color: var(--color-brand-3);
}

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

button,
input,
textarea {
  font: inherit;
}

ul,
ol {
  padding-left: 1.3rem;
}

.container {
  max-width: 1280px;
  padding-left: 24px;
  padding-right: 24px;
}

@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(63, 232, 161, 0.55);
  outline-offset: 2px;
  border-radius: 8px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(246, 247, 242, 0.96);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 21px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  line-height: 1;
  white-space: nowrap;
}

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

.brand-mark {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--gradient-brand);
  box-shadow: 0 6px 18px rgba(22, 200, 110, 0.28);
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 10px 10px 10px 12px;
  background: var(--color-primary);
  border-radius: 50% 50% 48% 48%;
  transform: rotate(-20deg);
}

.brand-mark::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 8px;
  width: 5px;
  height: 22px;
  background: var(--color-brand-1);
  border-radius: 6px;
  transform: rotate(30deg);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-item {
  position: relative;
  display: inline-block;
  padding: 8px 2px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  line-height: 1.2;
  white-space: nowrap;
}

.nav-item::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2.5px;
  border-radius: 4px;
  background: var(--color-brand-3);
  transition: width 0.25s ease;
}

.nav-item:hover,
.nav-item.active {
  color: var(--color-text);
}

.nav-item:hover::after,
.nav-item.active::after {
  width: 100%;
}

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-primary);
  font-size: 18px;
  border-radius: 12px;
  cursor: pointer;
}

.menu-toggle:hover,
.menu-toggle:focus-visible {
  border-color: var(--color-brand-3);
  color: var(--color-brand-3);
}

.mobile-menu {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 6px 0 18px;
}

.mobile-nav {
  display: grid;
  gap: 2px;
}

.mobile-nav .nav-item {
  display: block;
  padding: 14px 2px;
  font-size: 16px;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav .nav-item:last-child {
  border-bottom: 0;
}

.mobile-nav .nav-item::after {
  display: none;
}

.article-page {
  min-height: 68vh;
  padding-bottom: 24px;
}

.article-shell {
  max-width: 890px;
  margin: 0 auto;
  padding-top: 36px;
  padding-bottom: 88px;
}

.breadcrumb-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.breadcrumb-nav a {
  color: var(--color-text-secondary);
}

.breadcrumb-nav a:hover {
  color: var(--color-brand-3);
}

.crumb-separator {
  opacity: 0.45;
}

.breadcrumb-nav .current {
  max-width: 60%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--color-text);
}

.article-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: clamp(26px, 4.8vw, 54px);
}

.article-head {
  margin-bottom: 34px;
}

.pill {
  display: inline-flex;
  align-items: center;
  background: rgba(16, 201, 121, 0.1);
  color: #0B8E57;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.2;
  padding: 6px 13px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.pill.small {
  padding: 5px 11px;
  font-size: 12px;
}

.article-title {
  margin: 0 0 18px;
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  margin-bottom: 26px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

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

.meta-item i {
  color: var(--color-brand-3);
  font-size: 15px;
}

.article-summary {
  background: #F1F7F1;
  border: 1px solid rgba(63, 232, 161, 0.18);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  font-size: 16px;
  line-height: 1.85;
  color: #355042;
}

.article-summary p {
  margin: 0;
}

.article-content {
  color: #26372F;
  font-size: 17px;
  line-height: 1.9;
  word-break: break-word;
}

.article-content h2 {
  font-size: 26px;
  margin-top: 2em;
  margin-bottom: 0.75em;
  padding-top: 0.2em;
}

.article-content h3 {
  font-size: 21px;
  margin-top: 1.8em;
  margin-bottom: 0.6em;
}

.article-content h4 {
  font-size: 18px;
  margin-top: 1.6em;
  margin-bottom: 0.6em;
}

.article-content p {
  margin: 0 0 1.6em;
}

.article-content ul,
.article-content ol {
  margin: 0 0 1.6em;
}

.article-content li {
  margin-bottom: 0.45em;
}

.article-content img {
  max-width: 100%;
  height: auto;
  margin: 28px 0;
  border-radius: 18px;
  border: 1px solid var(--color-border);
}

.article-content blockquote {
  margin: 2em 0;
  padding: 20px 26px;
  border-left: 4px solid var(--color-brand-3);
  background: #F1F7F1;
  border-radius: 0 16px 16px 0;
  color: var(--color-text-secondary);
  font-size: 16px;
}

.article-content blockquote p {
  margin-bottom: 0.5em;
}

.article-content blockquote p:last-child {
  margin-bottom: 0;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.8em;
  font-size: 15px;
}

.article-content th,
.article-content td {
  border: 1px solid #E5EAE3;
  padding: 10px 14px;
}

.article-content th {
  background: #F2F7F1;
  font-weight: 600;
}

.article-content a {
  color: #0B8E57;
  border-bottom: 1px solid rgba(11, 142, 87, 0.3);
}

.article-content a:hover {
  color: var(--color-brand-3);
  border-bottom-color: var(--color-brand-3);
}

.article-keywords {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 34px 0 0;
  padding: 22px 0 26px;
  border-top: 1px solid var(--color-border);
}

.kw-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.tag-badge {
  display: inline-block;
  background: #EEF3EE;
  border: 1px solid transparent;
  border-radius: 100px;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--color-text-secondary);
  transition: all 0.2s ease;
}

.tag-badge:hover {
  background: var(--color-surface);
  border-color: var(--color-brand-3);
  color: var(--color-primary);
}

.article-more {
  margin-top: 46px;
}

.section-title {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--color-primary);
}

.section-desc {
  color: var(--color-text-secondary);
  font-size: 15px;
  margin-bottom: 26px;
}

.more-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.more-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.more-card-thumb {
  overflow: hidden;
}

.more-card-thumb img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.more-card:hover .more-card-thumb img {
  transform: scale(1.04);
}

.more-card-body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.more-card-body h3 {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
}

.more-card:hover .more-card-body h3 {
  color: #0B8E57;
}

.more-card-body p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

.article-more-return {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.article-more-return:hover {
  color: var(--color-brand-3);
}

.article-cta {
  position: relative;
  overflow: hidden;
  margin-top: 64px;
  padding: 52px 40px;
  border-radius: 32px;
  background: linear-gradient(135deg, #0E241B 0%, #214F38 100%);
  color: rgba(255, 255, 255, 0.86);
  text-align: center;
}

.article-cta::before {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  right: -80px;
  top: -100px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(63, 232, 161, 0.32), transparent 62%);
  pointer-events: none;
}

.article-cta h2 {
  color: #FFFFFF;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  margin-bottom: 12px;
}

.article-cta p {
  max-width: 560px;
  margin: 0 auto 28px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.76);
}

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

.btn-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  border: 0;
  cursor: pointer;
  background: var(--gradient-brand);
  color: #0E241B;
  font-weight: 700;
  font-size: 16px;
  padding: 13px 34px;
  border-radius: 100px;
  white-space: nowrap;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
  box-shadow: 0 10px 24px rgba(16, 201, 121, 0.25);
}

.btn-brand:hover {
  color: #0E241B;
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(16, 201, 121, 0.32);
  filter: brightness(1.04);
}

.btn-brand:active {
  transform: translateY(0);
}

.btn-ghost-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  border: 0;
  cursor: pointer;
  background: transparent;
  box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, 0.6);
  color: #FFFFFF;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 32px;
  border-radius: 100px;
  white-space: nowrap;
  transition: background-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.btn-ghost-light:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.85);
  transform: translateY(-1px);
}

.content-missing {
  max-width: 720px;
  margin: 56px auto;
  padding: 64px 32px;
  background: var(--color-surface);
  border: 1px dashed rgba(14, 36, 27, 0.18);
  border-radius: 32px;
  text-align: center;
}

.content-missing h1 {
  font-size: 30px;
  font-weight: 800;
}

.content-missing p {
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

.footer {
  background: var(--color-deep);
  color: rgba(255, 255, 255, 0.72);
  padding: 64px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 42px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.footer-brand .brand:hover {
  color: #fff;
}

.footer-brand p {
  max-width: 340px;
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.58);
}

.footer-col-title {
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
}

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

.footer-links li {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.5;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.68);
  display: inline-block;
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer-links a:hover {
  color: #FFFFFF;
  transform: translateX(3px);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  padding: 20px 0 24px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 991px) {
  .header-inner {
    min-height: 64px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
  }

  .article-cta {
    padding: 42px 26px;
  }
}

@media (max-width: 767px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .article-shell {
    padding-top: 24px;
    padding-bottom: 64px;
  }

  .article-card {
    border-radius: 24px;
    padding: 24px 20px;
  }

  .article-summary {
    padding: 18px;
    font-size: 15px;
  }

  .article-more-return {
    margin-top: 22px;
  }

  .article-cta {
    padding: 36px 22px;
    border-radius: 24px;
  }

  .cta-actions a {
    width: 100%;
  }

  .footer {
    padding-top: 44px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: left;
  }
}

@media (max-width: 520px) {
  .brand {
    font-size: 19px;
  }

  .article-title {
    font-size: 28px;
  }

  .article-content {
    font-size: 16px;
    line-height: 1.85;
  }

  .article-pill {
    margin-bottom: 12px;
  }
}

/* roulang page: category2 */
:root {
      --color-bg: #F6F7F2;
      --color-surface: #FFFFFF;
      --color-primary: #0E241B;
      --color-primary-light: #153528;
      --color-text: #0E241B;
      --color-muted: #617169;
      --color-soft-muted: #7C8A80;
      --color-accent: #FF6B3D;
      --color-line: rgba(14, 36, 27, 0.08);
      --gradient-brand: linear-gradient(135deg, #D9F276 0%, #3FE8A1 62%, #10C979 100%);
      --gradient-soft: linear-gradient(135deg, rgba(217, 242, 118, 0.22) 0%, rgba(63, 232, 161, 0.14) 62%, rgba(16, 201, 121, 0.08) 100%);
      --radius-sm: 10px;
      --radius-card: 20px;
      --radius-large: 30px;
      --shadow-card: 0 10px 30px rgba(20, 40, 30, 0.06);
      --shadow-hover: 0 18px 40px rgba(20, 40, 30, 0.12);
      --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
      --space-section: 96px;
      --space-card: 32px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-stack);
      font-size: 16px;
      line-height: 1.75;
      color: var(--color-text);
      background: var(--color-bg);
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
    }

    a:hover {
      color: var(--color-primary-light);
    }

    button {
      font-family: inherit;
    }

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

    .container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

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

    .section-sm {
      padding-top: 48px;
      padding-bottom: 48px;
    }

    .section-head {
      max-width: 780px;
      margin-bottom: 44px;
    }

    .section-head .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.02em;
      color: var(--color-muted);
      margin-bottom: 14px;
    }

    .section-head .eyebrow::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--gradient-brand);
    }

    .section-head h2 {
      font-size: 30px;
      line-height: 1.25;
      font-weight: 700;
      letter-spacing: -0.01em;
      color: var(--color-primary);
      margin: 0 0 12px 0;
    }

    .section-head p {
      font-size: 16.5px;
      color: var(--color-muted);
      margin: 0;
      max-width: 680px;
    }

    .text-muted-light {
      color: var(--color-soft-muted);
      font-size: 14px;
    }

    /* Header */
    .site-header {
      position: relative;
      z-index: 50;
      background: rgba(246, 247, 242, 0.88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--color-line);
    }

    .header-inner {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      padding-top: 8px;
      padding-bottom: 8px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 21px;
      font-weight: 700;
      color: var(--color-primary);
      letter-spacing: -0.02em;
      white-space: nowrap;
    }

    .brand-mark {
      width: 34px;
      height: 34px;
      border-radius: 10px;
      background: var(--gradient-brand);
      box-shadow: 0 8px 18px rgba(39, 194, 120, 0.25);
      flex-shrink: 0;
    }

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

    .main-nav {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 34px;
      margin-left: auto;
    }

    .main-nav .nav-item {
      position: relative;
      padding: 10px 0;
      font-size: 15.5px;
      font-weight: 500;
      color: var(--color-muted);
      line-height: 1.3;
    }

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

    .main-nav .nav-item.active {
      color: var(--color-primary);
      font-weight: 600;
    }

    .main-nav .nav-item.active::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: 2px;
      width: 18px;
      height: 3px;
      border-radius: 4px;
      transform: translateX(-50%);
      background: var(--gradient-brand);
    }

    .nav-toggle {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 46px;
      height: 46px;
      border: 1px solid var(--color-line);
      border-radius: 14px;
      background: var(--color-surface);
      font-size: 18px;
      color: var(--color-primary);
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .nav-toggle:hover {
      border-color: rgba(16, 201, 121, 0.4);
      background: rgba(16, 201, 121, 0.05);
    }

    .nav-toggle:focus-visible {
      outline: 3px solid rgba(16, 201, 121, 0.35);
      outline-offset: 2px;
    }

    .mobile-nav-collapse {
      background: var(--color-bg);
      border-top: 1px solid var(--color-line);
    }

    .mobile-menu {
      display: flex;
      flex-direction: column;
      padding: 14px 0 20px;
      gap: 4px;
    }

    .mobile-menu a {
      display: block;
      padding: 13px 16px;
      border-radius: 14px;
      font-weight: 500;
      color: var(--color-muted);
      font-size: 16px;
    }

    .mobile-menu a:hover {
      background: rgba(16, 201, 121, 0.06);
      color: var(--color-primary);
    }

    .mobile-menu a.active {
      color: var(--color-primary);
      background: var(--gradient-soft);
      font-weight: 600;
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 50px;
      padding: 0 26px;
      border-radius: 200px;
      font-size: 15.5px;
      font-weight: 650;
      border: 1.5px solid transparent;
      white-space: nowrap;
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .btn-primary-brand {
      background: var(--gradient-brand);
      color: #0E2D1D;
      border: none;
      box-shadow: 0 10px 22px rgba(24, 178, 108, 0.22);
    }

    .btn-primary-brand:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 28px rgba(24, 178, 108, 0.32);
      color: #0E2D1D;
    }

    .btn-primary-brand:active {
      transform: translateY(0);
    }

    .btn-outline-light {
      background: transparent;
      border-color: rgba(14, 36, 27, 0.25);
      color: var(--color-primary);
    }

    .btn-outline-light:hover {
      border-color: #1ccb89;
      background: rgba(16, 201, 121, 0.07);
      color: var(--color-primary);
      transform: translateY(-2px);
    }

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

    .btn-dark:hover {
      background: var(--color-primary-light);
      color: #fff;
      transform: translateY(-2px);
    }

    .btn:focus-visible {
      outline: 3px solid rgba(16, 201, 121, 0.45);
      outline-offset: 3px;
    }

    /* Hero */
    .category2-hero {
      position: relative;
      padding-top: 60px;
      padding-bottom: 72px;
      overflow: hidden;
    }

    .category2-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: radial-gradient(rgba(16, 201, 121, 0.08) 1px, transparent 1px);
      background-size: 30px 30px;
      pointer-events: none;
    }

    .breadcrumb-inline {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 22px;
      font-size: 14px;
      color: var(--color-muted);
    }

    .breadcrumb-inline a {
      color: var(--color-soft-muted);
      transition: color 0.2s ease;
    }

    .breadcrumb-inline a:hover {
      color: var(--color-primary);
    }

    .breadcrumb-inline span {
      color: #A5B1A8;
    }

    .breadcrumb-inline .crumb {
      color: var(--color-muted);
      font-weight: 500;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
      align-items: center;
      gap: 56px;
      position: relative;
    }

    .hero-content h1 {
      font-size: 46px;
      line-height: 1.18;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin: 0 0 18px 0;
      color: var(--color-primary);
    }

    .hero-content .hero-lead {
      font-size: 17px;
      line-height: 1.8;
      color: var(--color-muted);
      max-width: 560px;
      margin: 0 0 28px 0;
    }

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

    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 26px 40px;
    }

    .stat-block .stat-number {
      font-size: 30px;
      font-weight: 800;
      color: var(--color-primary);
      letter-spacing: -0.02em;
      line-height: 1.2;
    }

    .stat-block .stat-number em {
      font-style: normal;
      color: var(--color-accent);
    }

    .stat-block .stat-label {
      display: block;
      font-size: 13px;
      color: var(--color-soft-muted);
      margin-top: 2px;
    }

    .hero-art {
      position: relative;
      border-radius: 32px;
      background: #ffffff;
      box-shadow: var(--shadow-card);
      padding: 14px;
      border: 1px solid rgba(14, 36, 27, 0.06);
      transform: rotate(0.6deg);
    }

    .hero-art img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      border-radius: 24px;
    }

    .hero-art::after {
      content: "";
      position: absolute;
      z-index: -1;
      width: 72%;
      height: 72%;
      bottom: -18px;
      right: -18px;
      border-radius: 32px;
      background: var(--gradient-brand);
      opacity: 0.22;
    }

    /* Timeline / steps */
    .steps-block {
      padding-top: var(--space-section);
    }

    .steps-intro {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
      gap: 40px;
      align-items: end;
      margin-bottom: 48px;
    }

    .step-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .step-item {
      position: relative;
      display: grid;
      grid-template-columns: 72px minmax(0, 1fr);
      gap: 20px;
      align-items: start;
      background: var(--color-surface);
      border-radius: var(--radius-large);
      border: 1px solid rgba(14, 36, 27, 0.06);
      padding: 26px 28px;
      box-shadow: var(--shadow-card);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      overflow: hidden;
    }

    .step-item:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
    }

    .step-item::before {
      content: "";
      position: absolute;
      left: 0;
      top: 20px;
      bottom: 20px;
      width: 4px;
      border-radius: 0 6px 6px 0;
      background: var(--gradient-brand);
      opacity: 0.8;
    }

    .step-item .step-num {
      width: 58px;
      height: 58px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 20px;
      background: var(--gradient-soft);
      color: var(--color-primary);
      font-size: 20px;
      font-weight: 800;
      line-height: 1;
    }

    .step-item .step-content h3 {
      margin: 0 0 8px 0;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: -0.01em;
      color: var(--color-primary);
    }

    .step-item .step-content p {
      margin: 0;
      color: var(--color-muted);
      font-size: 15.5px;
      line-height: 1.8;
      max-width: 680px;
    }

    .step-item .step-content .step-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 8px;
      font-size: 13px;
      color: var(--color-soft-muted);
    }

    .step-item .step-point {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(247, 114, 61, 0.07);
      color: #C95407;
      padding: 4px 10px;
      border-radius: 100px;
      font-size: 13px;
      font-weight: 600;
    }

    .step-item .step-content .step-sub {
      margin-top: 10px;
      padding-top: 10px;
      border-top: 1px dashed rgba(14, 36, 27, 0.1);
      font-size: 13.5px;
      color: var(--color-muted);
    }

    .tip-band {
      margin-top: 70px;
      background: var(--color-primary);
      background-image: linear-gradient(100deg, #0e241b 0%, #153528 58%, #1b3f2c 100%);
      border-radius: var(--radius-large);
      color: #fff;
      padding: 36px 44px;
      position: relative;
      overflow: hidden;
    }

    .tip-band::after {
      content: "";
      position: absolute;
      right: -40px;
      top: -60px;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: var(--gradient-brand);
      opacity: 0.18;
    }

    .tip-band .tip-inner {
      position: relative;
      z-index: 1;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      flex-wrap: wrap;
    }

    .tip-band h3 {
      font-size: 22px;
      font-weight: 700;
      margin: 0 0 6px 0;
    }

    .tip-band p {
      margin: 0;
      color: rgba(255, 255, 255, 0.72);
      font-size: 15px;
    }

    .tip-band .small-data-list {
      display: flex;
      gap: 28px;
      flex-wrap: wrap;
      align-items: center;
    }

    .tip-band .small-data-list .num {
      font-size: 22px;
      font-weight: 800;
      color: #D9F276;
    }

    .tip-band .small-data-list .cap {
      color: rgba(255, 255, 255, 0.65);
      font-size: 13px;
      display: block;
    }

    /* usecase */
    .use-route-cards {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 20px;
    }

    .use-route-card {
      background: var(--color-surface);
      border-radius: var(--radius-card);
      border: 1px solid var(--color-line);
      padding: var(--space-card);
      transition: transform 0.3s ease, box-shadow 0.3s ease, border 0.25s ease;
    }

    .use-route-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(16, 201, 121, 0.24);
    }

    .use-icon {
      width: 48px;
      height: 48px;
      border-radius: 16px;
      background: var(--gradient-soft);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 18px;
    }

    .use-route-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--color-primary);
      margin: 0 0 10px;
    }

    .use-route-card p {
      font-size: 15px;
      color: var(--color-muted);
      margin: 0 0 14px;
      line-height: 1.8;
    }

    .use-route-card .card-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #C95407;
      font-size: 13px;
      font-weight: 600;
    }

    .use-route-card .card-tag i {
      font-size: 12px;
    }

    /* visual note band */
    .visual-note {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      align-items: center;
      gap: 26px;
      background: #fff;
      border-radius: var(--radius-large);
      border: 1px solid var(--color-line);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      margin-top: 72px;
    }

    .visual-note img {
      width: 100%;
      height: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
    }

    .visual-note .note-content {
      padding: 36px 40px 36px 24px;
    }

    .visual-note .note-content h3 {
      font-size: 22px;
      color: var(--color-primary);
      margin: 0 0 12px;
      font-weight: 700;
    }

    .visual-note .note-content p {
      color: var(--color-muted);
      font-size: 15.5px;
      line-height: 1.8;
      margin: 0;
    }

    .note-devices {
      margin-top: 20px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .note-devices span {
      background: rgba(14, 36, 27, 0.05);
      border-radius: 100px;
      padding: 6px 12px;
      font-size: 13px;
      color: var(--color-muted);
    }

    /* FAQ */
    .faq-block {
      max-width: 880px;
      margin: 0 auto;
    }

    .faq-item {
      border-bottom: 1px solid rgba(14, 36, 27, 0.1);
    }

    .faq-item:first-child {
      border-top: 1px solid rgba(14, 36, 27, 0.1);
    }

    .faq-question {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      align-items: center;
      padding: 24px 6px;
      cursor: pointer;
      border: none;
      background: none;
      width: 100%;
      text-align: left;
      color: var(--color-primary);
      font-size: 16.5px;
      font-weight: 600;
      line-height: 1.55;
    }

    .faq-question::before {
      content: "问";
      flex-shrink: 0;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 26px;
      height: 26px;
      border-radius: 8px;
      background: rgba(16, 201, 121, 0.12);
      color: #0A8F56;
      font-size: 12px;
      font-weight: 700;
      margin-right: 8px;
    }

    .faq-icon {
      flex-shrink: 0;
      margin-left: auto;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--gradient-soft);
      color: var(--color-primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      transition: transform 0.3s ease;
    }

    details[open] .faq-question .faq-icon {
      transform: rotate(180deg);
    }

    .faq-question:focus-visible {
      outline: 3px solid rgba(16, 201, 121, 0.35);
      outline-offset: 2px;
    }

    .faq-answer {
      padding: 0 6px 24px 40px;
      max-width: 700px;
    }

    .faq-answer ::marker {
      content: "答 ";
      font-size: 13px;
      color: #C95407;
    }

    .faq-answer p {
      margin: 0;
      font-size: 15.5px;
      line-height: 1.9;
      color: var(--color-muted);
    }

    /* subscribe */
    .subscribe-wrap {
      max-width: 720px;
      margin: 0 auto;
    }

    .subscribe-card {
      background: var(--color-surface);
      border-radius: var(--radius-large);
      padding: 48px 44px;
      border: 1px solid var(--color-line);
      box-shadow: var(--shadow-card);
      text-align: center;
    }

    .subscribe-card h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--color-primary);
      margin: 0 0 12px;
    }

    .subscribe-card p {
      color: var(--color-muted);
      font-size: 15.5px;
      margin: 0 auto 32px;
      max-width: 540px;
    }

    .form-email-row {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 460px;
      margin: 0 auto;
    }

    .subscribe-form input {
      width: 100%;
      height: 52px;
      border: 1.5px solid rgba(14, 36, 27, 0.12);
      background: #FCFDFB;
      border-radius: 14px;
      padding: 0 18px;
      font-size: 15px;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .subscribe-form input:focus {
      outline: none;
      border-color: rgba(16, 201, 121, 0.85);
      box-shadow: 0 0 0 4px rgba(16, 201, 121, 0.13);
    }

    .subscribe-form input:focus-visible {
      outline: none;
    }

    .subscribe-form .btn {
      width: 100%;
      min-height: 52px;
    }

    .form-tip {
      margin-top: 16px;
      font-size: 13px;
      color: var(--color-soft-muted);
    }

    .form-success {
      display: none;
      background: rgba(16, 201, 121, 0.1);
      border: 1px solid rgba(16, 201, 121, 0.22);
      color: #0A8F56;
      border-radius: 12px;
      padding: 12px 18px;
      margin-top: 16px;
      font-size: 15px;
    }

    .form-success.show {
      display: block;
    }

    /* CTA */
    .cta-complex {
      margin-top: var(--space-section);
    }

    .cta-card {
      background: var(--color-primary);
      background-image: radial-gradient(circle at 85% 20%, rgba(217, 242, 118, 0.18), transparent 25%), radial-gradient(circle at 15% 85%, rgba(16, 201, 121, 0.28), transparent 30%);
      border-radius: 36px;
      padding: 64px 56px;
      color: #fff;
      position: relative;
      overflow: hidden;
      text-align: center;
    }

    .cta-card h2 {
      font-size: 32px;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin: 0 0 14px;
    }

    .cta-card > p {
      color: rgba(255, 255, 255, 0.75);
      max-width: 600px;
      margin: 0 auto 32px;
      font-size: 15.5px;
    }

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

    .cta-card .btn-primary-brand {
      background: #D9F276;
      box-shadow: 0 12px 24px rgba(14, 36, 27, 0.22);
      color: #0E241B;
    }

    .cta-card .btn-outline-light {
      border-color: rgba(255, 255, 255, 0.4);
      color: #fff;
    }

    .cta-card .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: #fff;
      color: #fff;
    }

    /* Footer */
    .footer {
      background: #0c1e17;
      color: rgba(255, 255, 255, 0.72);
      padding-top: 64px;
      margin-top: var(--space-section);
    }

    .footer-top {
      display: grid;
      grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 0.9fr));
      gap: 40px;
      padding-bottom: 44px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

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

    .footer-brand p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.58);
      margin: 0;
      max-width: 280px;
      line-height: 1.8;
    }

    .footer-col-title {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 16px;
    }

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

    .footer-links li {
      margin-bottom: 8px;
    }

    .footer-links a,
    .footer-links li {
      font-size: 14.5px;
      color: rgba(255, 255, 255, 0.62);
      text-decoration: none;
      transition: all 0.2s ease;
      cursor: pointer;
    }

    .footer-links a:hover {
      color: #fff;
      transform: translateX(3px);
      display: inline-block;
    }

    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 10px;
      padding: 18px 0 24px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.45);
    }

    /* responsive */
    @media (max-width: 991.98px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }

      .hero-content h1 {
        font-size: 36px;
      }

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

      .use-route-cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .visual-note {
        grid-template-columns: 1fr;
      }

      .visual-note img {
        aspect-ratio: 16 / 8;
      }

      .visual-note .note-content {
        padding: 28px;
      }

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

    @media (max-width: 767.98px) {
      .section {
        --space-section: 68px;
      }

      .section-head h2 {
        font-size: 27px;
      }

      .hero-content h1 {
        font-size: 32px;
      }

      .hero-badges {
        gap: 18px 26px;
      }

      .stat-block .stat-number {
        font-size: 26px;
      }

      .step-item {
        grid-template-columns: 1fr;
        padding: 24px;
        gap: 14px;
      }

      .step-item .step-num {
        width: 48px;
        height: 48px;
        border-radius: 16px;
        font-size: 18px;
      }

      .tip-band {
        padding: 28px 24px;
      }

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

      .use-route-cards {
        grid-template-columns: 1fr;
      }

      .cta-card {
        padding: 46px 24px;
        border-radius: 28px;
      }

      .cta-card h2 {
        font-size: 26px;
      }

      .subscribe-card {
        padding: 34px 22px;
      }

      .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 30px 20px;
      }

      .footer-brand {
        grid-column: span 2;
      }
    }

    @media (max-width: 575.98px) {
      .container {
        padding-left: 20px;
        padding-right: 20px;
      }

      .hero-content .hero-lead {
        font-size: 16.5px;
      }

      .hero-actions {
        flex-direction: column;
        align-items: stretch;
      }

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

      .step-item .step-content h3 {
        font-size: 18px;
      }

      .footer-top {
        grid-template-columns: 1fr;
      }

      .footer-brand {
        grid-column: auto;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }