/* roulang page: index */
:root{
  --bg:#F4F2EC;
  --surface:#FFFFFF;
  --ink:#191A17;
  --ink-soft:#5B5B52;
  --line:#E5E1D7;
  --accent:#D7F94A;
  --promo:#F0522A;
  --success:#21A366;
  --error:#E5484D;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(20,20,15,.05);
  --shadow-hover:0 20px 44px rgba(20,20,15,.12);
  --space-section:clamp(64px,10vh,120px);
  --container:1240px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul{padding-left:0;list-style:none;margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit}
h1,h2,h3,h4,p{margin:0}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.surface-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  border:none;
  border-radius:var(--radius-sm);
  font-weight:700;
  font-size:16px;
  padding:13px 24px;
  cursor:pointer;
  transition:transform .25s ease,background .2s ease,box-shadow .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn:focus-visible,.plain-btn:focus-visible,a:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{background:#bff02e;transform:translateY(-2px);box-shadow:0 12px 24px rgba(215,249,74,.24)}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:#2e2f2a;transform:translateY(-2px);box-shadow:0 12px 28px rgba(25,26,23,.2)}
.btn-ghost{background:transparent;color:#F4F2EC;box-shadow:inset 0 0 0 1px rgba(255,255,255,.3)}
.btn-ghost:hover{background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn-promo{background:var(--promo);color:#fff}
.btn-promo:hover{background:#c93a16;transform:translateY(-2px);box-shadow:0 12px 28px rgba(240,82,42,.28)}
.text-arrow{transition:transform .25s ease;display:inline-block}
a:hover .text-arrow{transform:translateX(4px)}
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .55s ease}
.js .reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .js .reveal{opacity:1 !important;transform:none !important}
}

/* Header */
.site-header{
  position:sticky;
  top:12px;
  z-index:80;
  margin-top:14px;
}
.nav-panel{
  background:var(--ink);
  color:#F4F2EC;
  border-radius:18px;
  box-shadow:0 16px 44px rgba(25,26,23,.22);
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 16px;
  max-width:calc(var(--container) + 40px);
  margin:0 auto;
  position:relative;
}
.brand{
  font-size:22px;
  font-weight:900;
  letter-spacing:-.01em;
  color:#fff;
  line-height:1.2;
  white-space:nowrap;
  padding-right:14px;
}
.brand small{
  display:block;
  font-size:12px;
  font-weight:500;
  color:rgba(255,255,255,.45);
  letter-spacing:.1em;
}
.site-nav{
  margin-right:auto;
  margin-left:2px;
  display:flex;
  align-items:center;
}
.nav-links{
  display:flex;
  gap:4px;
}
.nav-chip{
  color:rgba(255,255,255,.78);
  font-size:15px;
  font-weight:500;
  border-radius:12px;
  padding:9px 16px;
  transition:background .2s ease,color .2s ease,box-shadow .25s ease;
  line-height:1.2;
}
.nav-chip:hover{
  background:var(--accent);
  color:var(--ink);
  box-shadow:0 0 0 1px rgba(255,255,255,.12);
}
.nav-chip.active{
  background:rgba(255,255,255,.12);
  color:#fff;
  box-shadow:inset 0 -2px 0 var(--accent);
}
.header-cta{
  flex:none;
}
.nav-check,.nav-toggle{
  display:none;
}

/* Hero */
.hero{
  margin-top:22px;
  color:#fff;
  border-radius:var(--radius-lg);
  overflow:hidden;
  position:relative;
  background:linear-gradient(90deg,rgba(25,26,23,.96) 0%,rgba(25,26,23,.74) 55%,rgba(25,26,23,.4) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  box-shadow:var(--shadow-hover);
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 15% 90%,rgba(215,249,74,.1),transparent 44%);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:clamp(20px,4vw,60px);
  align-items:center;
  padding:clamp(36px,6vw,76px) clamp(24px,5vw,64px);
  position:relative;
  z-index:1;
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  border-radius:100px;
  padding:7px 16px;
  font-size:14px;
  color:var(--accent);
  font-weight:600;
  letter-spacing:.04em;
}
.hero-kicker::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent);
}
.hero h1{
  margin-top:24px;
  font-size:clamp(40px,5vw,72px);
  line-height:1.1;
  font-weight:900;
  letter-spacing:-.02em;
}
.hero-sub{
  margin-top:22px;
  color:rgba(255,255,255,.76);
  max-width:540px;
  font-size:18px;
  line-height:1.75;
}
.hero-actions{
  margin-top:34px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.hero-media{
  background:#0e0e0c;
  border:1px solid rgba(255,255,255,.1);
  border-radius:20px;
  overflow:hidden;
  box-shadow:0 26px 60px rgba(0,0,0,.45);
}
.hero-media img{
  width:100%;
  min-height:250px;
  object-fit:cover;
}

/* Section common */
.section{padding:var(--space-section) 0}
.section-head{
  max-width:760px;
  margin-bottom:clamp(30px,5vw,56px);
}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--ink-soft);
  font-weight:700;
  font-size:14px;
  letter-spacing:.14em;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent)}
.section-head.center .eyebrow::after{content:"";width:26px;height:2px;background:var(--accent)}
.section-title{
  font-size:clamp(30px,3.4vw,52px);
  line-height:1.2;
  font-weight:900;
  letter-spacing:-.02em;
}
.section-desc{
  margin-top:16px;
  color:var(--ink-soft);
  font-size:18px;
  line-height:1.7;
}

/* Category cards */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.cat-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  display:block;
  transition:transform .25s ease,box-shadow .25s ease;
}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.cat-card-media{
  display:block;
  aspect-ratio:4/3;
  overflow:hidden;
  position:relative;
  background:#ddd8cc;
}
.cat-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.cat-card:hover .cat-card-media img{transform:scale(1.04)}
.cat-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(25,26,23,.44),transparent 55%)}
.cat-card-body{display:block;padding:22px 22px 24px}
.cat-card-num{
  color:var(--accent);
  font-family:var(--font-mono);
  font-weight:700;
  font-size:14px;
  background:var(--ink);
  border-radius:8px;
  padding:2px 8px;
  display:inline-block;
  margin-bottom:12px;
}
.cat-card-title{display:block;font-size:22px;font-weight:900;letter-spacing:-.01em}
.cat-card-desc{display:block;margin-top:10px;color:var(--ink-soft);font-size:15px;line-height:1.7}
.cat-card-link{display:inline-block;margin-top:16px;font-weight:700;color:var(--ink)}

/* Service steps */
.steps-wrap{
  padding:clamp(24px,4vw,52px);
}
.steps-ladder{
  display:grid;
  grid-template-columns:1fr 1.15fr 1fr;
  gap:20px;
  align-items:stretch;
}
.step-item{
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:clamp(20px,2.6vw,34px);
  position:relative;
  background:var(--surface);
  display:flex;
  flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.step-item.hot{
  border:2px solid var(--ink);
  transform:translateY(-12px);
  box-shadow:0 18px 42px rgba(25,26,23,.11);
}
.step-item.hot:hover{transform:translateY(-14px)}
.step-badge{
  position:absolute;
  top:-13px;
  left:24px;
  background:var(--promo);
  color:#fff;
  font-weight:800;
  font-size:13px;
  border-radius:100px;
  padding:5px 12px;
}
.step-num{
  font-family:var(--font-mono);
  font-weight:800;
  font-size:14px;
  color:var(--ink-soft);
  background:#EEECE4;
  display:inline-flex;
  width:44px;
  height:44px;
  border-radius:12px;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
}
.step-item.hot .step-num{background:var(--accent);color:var(--ink)}
.step-item h3{font-size:23px;font-weight:900}
.step-item > p{margin-top:10px;color:var(--ink-soft);line-height:1.7}
.step-item ul{margin-top:18px;display:grid;gap:10px}
.step-item ul li{
  color:var(--ink);
  padding-left:24px;
  position:relative;
  font-size:15px;
}
.step-item ul li::before{
  content:"";
  width:7px;height:7px;
  border-radius:50%;
  background:var(--accent);
  position:absolute;
  left:4px;
  top:.72em;
}
.step-item .btn{margin-top:24px}

/* Compare */
.compare-shell .section-head{margin-bottom:34px}
.table-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  border-radius:var(--radius-lg);
}
.compare-table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  min-width:760px;
}
.compare-table th,.compare-table td{
  padding:18px 20px;
  text-align:left;
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
.compare-table thead th{
  background:#201F1B;
  color:#fff;
  font-weight:800;
  font-size:17px;
  border-bottom:0;
}
.compare-table thead th:first-child{border-radius:14px 0 0 0}
.compare-table thead th:nth-child(3){background:var(--ink)}
.compare-table thead th:last-child{border-radius:0 14px 0 0}
.compare-table thead .col-hot{
  position:relative;
}
.compare-table tbody th{
  font-weight:700;
  color:var(--ink-soft);
}
.compare-table tbody tr:last-child td,
.compare-table tbody tr:last-child th{border-bottom:0}
.compare-table tbody tr:hover td,
.compare-table tbody tr:hover th{
  background:#F7F5F0;
}
.compare-table td .table-badge{
  background:var(--promo);
  color:#fff;
  font-size:12px;
  font-weight:800;
  border-radius:100px;
  padding:3px 10px;
  margin-left:10px;
  vertical-align:2px;
}
.compare-actions{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-top:22px;
}
.compare-actions .btn{justify-content:center}
.table-hint{
  margin-top:18px;
  color:var(--ink-soft);
  font-size:14px;
  text-align:center;
  display:none;
}

/* Promo banner */
.promo-banner{
  background:#1B1B17;
  color:#fff;
  border-radius:var(--radius-lg);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  padding:clamp(28px,5vw,54px);
  position:relative;
  overflow:hidden;
}
.promo-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,transparent 0%,transparent 55%,rgba(240,82,42,.18) 100%);
  pointer-events:none;
}
.promo-kicker{
  color:var(--promo);
  font-weight:800;
  font-size:14px;
  letter-spacing:.14em;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.promo-kicker::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--promo)}
.promo-title{
  font-size:clamp(26px,3.4vw,44px);
  font-weight:900;
  line-height:1.2;
  margin-top:14px;
}
.promo-desc{margin-top:14px;color:rgba(255,255,255,.72);max-width:560px}
.promo-right{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.countdown{
  display:flex;
  gap:8px;
  font-family:var(--font-mono);
}
.countdown-col{
  text-align:center;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
  border-radius:12px;
  min-width:62px;
  padding:12px 10px 10px;
}
.countdown-num{
  font-size:24px;
  font-weight:800;
  line-height:1;
  color:var(--accent);
}
.countdown-label{
  display:block;
  margin-top:7px;
  font-size:12px;
  color:rgba(255,255,255,.56);
  font-family:var(--font-sans);
  letter-spacing:.08em;
}
.promo-cta{margin-left:14px}

/* News */
.news-panel{
  padding:clamp(24px,4vw,52px);
}
.news-list{
  display:block;
}
.news-row{
  display:grid;
  grid-template-columns:150px minmax(0,1fr) minmax(0,1.2fr) auto 30px;
  gap:18px;
  align-items:center;
  padding:18px 12px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease,box-shadow .25s ease;
}
.news-row:last-child{border-bottom:0}
.news-row:hover{
  background:#F7F5F0;
  border-radius:12px;
}
.news-cat{
  background:#EEECE4;
  font-size:13px;
  font-weight:700;
  color:var(--ink);
  border-radius:8px;
  padding:4px 10px;
  white-space:nowrap;
  text-align:center;
  display:inline-block;
  width:fit-content;
}
.news-title{
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.4;
  font-size:17px;
}
.news-row:hover .news-title{color:#000}
.news-excerpt{
  color:var(--ink-soft);
  font-size:15px;
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  font-size:14px;
  color:var(--ink-soft);
  font-family:var(--font-mono);
  white-space:nowrap;
}
.news-arrow{
  color:var(--ink);
  font-size:20px;
  text-align:center;
  transition:transform .25s ease;
}
.news-row:hover .news-arrow{transform:translateX(5px)}
.news-empty{
  text-align:center;
  padding:clamp(40px,7vw,72px) 20px;
  color:var(--ink-soft);
  background:#FAF8F2;
  border:1px dashed var(--line);
  border-radius:var(--radius-md);
}
.news-empty-icon{
  width:48px;
  height:48px;
  margin:0 auto 16px;
  border-radius:14px;
  background:var(--accent);
  position:relative;
}
.news-empty-icon::before{
  content:"";
  position:absolute;
  inset:10px;
  background:linear-gradient(90deg,var(--accent) 0 calc(35%),var(--ink) calc(35%) calc(55%),var(--accent) calc(55%) calc(72%),var(--ink) calc(72%) 100%);
}

/* Contact */
.contact-panel{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:clamp(28px,5vw,64px);
  padding:clamp(24px,5vw,60px);
  background:var(--surface);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  border:1px solid var(--line);
}
.contact-media{
  border-radius:var(--radius-md);
  overflow:hidden;
  margin-top:26px;
  max-height:300px;
}
.contact-media img{width:100%;height:100%;object-fit:cover}
.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.form-field{
  display:grid;
  gap:7px;
}
.form-field.full{grid-column:1/-1}
.form-field label{
  font-weight:700;
  font-size:14px;
}
.form-field input,.form-field select,.form-field textarea{
  width:100%;
  border:1px solid var(--line);
  background:#fff;
  border-radius:10px;
  padding:12px 14px;
  font-size:15px;
  color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;
  border-color:var(--ink);
  box-shadow:0 0 0 3px rgba(215,249,74,.4);
}
.form-field textarea{min-height:110px;resize:vertical}
.form-submit{margin-top:16px;grid-column:1/-1;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-tip{font-size:14px;color:var(--success);font-weight:600}

/* FAQ */
.faq-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:clamp(28px,6vw,80px);
  align-items:start;
}
.faq-intro .section-head{margin-bottom:22px}
.faq-intro p{
  color:var(--ink-soft);
  line-height:1.8;
  margin-bottom:18px;
}
.faq-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-item:last-child{border-bottom:0}
.faq-question{
  width:100%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  background:transparent;
  border:none;
  text-align:left;
  padding:20px 22px;
  cursor:pointer;
  font-weight:700;
  color:var(--ink);
  font-size:17px;
}
.faq-question:hover{background:#F8F6F1}
.faq-icon{
  width:28px;height:28px;
  border-radius:50%;
  background:#EEECE4;
  position:relative;
  flex:none;
  transition:background .2s ease,transform .3s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--ink);
  border-radius:2px;
}
.faq-icon::before{width:12px;height:2px;left:8px;top:13px}
.faq-icon::after{width:2px;height:12px;left:13px;top:8px}
.faq-item.is-open .faq-icon{background:var(--accent);transform:rotate(45deg)}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease,padding .3s ease;
}
.faq-item.is-open .faq-answer{
  max-height:600px;
  padding:0 22px 22px;
}
.faq-answer p{
  color:var(--ink-soft);
  line-height:1.8;
  font-size:15.5px;
}
/* Footer */
.footer{
  background:var(--ink);
  color:#cdcdc4;
  margin-top:var(--space-section);
  padding:60px 0 32px;
  font-size:15px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .8fr .8fr 1.1fr;
  gap:32px;
}
.footer-brand{
  font-size:24px;
  font-weight:900;
  color:#fff;
}
.footer-brand small{
  display:block;
  font-size:13px;
  font-weight:400;
  color:rgba(255,255,255,.36);
  margin-top:5px;
}
.footer-about{
  color:rgba(255,255,255,.56);
  line-height:1.75;
  margin-top:14px;
  max-width:300px;
}
.footer-title{
  font-size:14px;
  color:#fff;
  font-weight:800;
  letter-spacing:.08em;
  margin-bottom:14px;
}
.footer-links li{margin-bottom:7px}
.footer-links a{
  color:rgba(255,255,255,.6);
  transition:color .2s ease,padding .2s ease;
}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-bottom{
  margin-top:40px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  justify-content:space-between;
  gap:14px;
  color:rgba(255,255,255,.46);
  font-size:13.5px;
  flex-wrap:wrap;
}

/* Responsive */
@media (max-width:1024px){
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .steps-ladder{grid-template-columns:1fr}
  .step-item.hot{transform:none}
  .step-item.hot:hover{transform:translateY(-3px)}
  .step-item.hot .step-badge{left:auto;right:24px}
  .contact-panel{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 16px}
  .brand{font-size:18px;padding-right:2px}
  .site-header{top:8px}
  .nav-panel{
    flex-wrap:wrap;
    padding:10px 12px;
    border-radius:16px;
  }
  .site-nav{
    display:none;
    width:100%;
    order:5;
    margin:12px 0 4px;
  }
  .nav-links{
    flex-direction:column;
    gap:2px;
    width:100%;
  }
  .nav-chip{
    display:block;
    padding:11px 14px;
    border-radius:10px;
  }
  .nav-toggle{
    display:inline-flex;
    flex-direction:column;
    gap:4px;
    width:42px;
    height:42px;
    padding:11px 9px;
    border-radius:10px;
    background:rgba(255,255,255,.08);
    margin-left:auto;
    cursor:pointer;
    align-items:center;
    justify-content:center;
    line-height:0;
    box-sizing:border-box;
  }
  .nav-toggle span{
    display:block;
    width:22px;
    height:2px;
    background:#fff;
    border-radius:2px;
    transition:transform .25s ease,opacity .2s ease;
  }
  .nav-check:checked ~ .site-nav{display:block}
  .nav-check:checked + .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .nav-check:checked + .nav-toggle span:nth-child(2){opacity:0}
  .nav-check:checked + .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .header-cta{order:3;margin-left:0}
  .hero{margin-top:12px}
  .hero-grid{grid-template-columns:1fr;padding:34px 22px}
  .hero-media{margin-top:6px;max-width:520px}
  .hero-media img{min-height:auto;max-height:230px}
  .hero-sub{font-size:16px}
  .section-title{font-size:30px}
  .section-desc{font-size:16.5px}
  .cat-grid{gap:14px}
  .cat-card-body{padding:18px}
  .steps-wrap,.news-panel,.contact-panel{padding:22px 18px}
  .steps-ladder{gap:18px}
  .compare-actions{grid-template-columns:1fr}
  .promo-banner{padding:28px 22px}
  .promo-right{width:100%}
  .countdown{width:100%;justify-content:center;flex-wrap:wrap}
  .promo-cta{width:100%;margin-left:0}
  .promo-cta .btn{width:100%}
  .form-grid{grid-template-columns:1fr}
  .news-list{display:block}
  .news-row{
    grid-template-columns:1fr auto;
    padding:18px 8px;
  }
  .news-cat{grid-column:1/2;margin-bottom:2px}
  .news-title{grid-column:1/2}
  .news-excerpt{grid-column:1/-1;order:6}
  .news-meta{color:var(--ink-soft);font-size:12px}
  .news-arrow{display:none}
  .footer-grid{grid-template-columns:1fr}
  .faq-question{font-size:16px;padding:18px}
  .faq-item.is-open .faq-answer{padding:0 18px 18px}
  .table-hint{display:block}
}
@media (max-width:420px){
  .brand{font-size:16px}
  .brand small{display:none}
  .hero h1{font-size:38px}
  .section-title{font-size:26px}
}

/* roulang page: category1 */
:root {
  --bg: #F4F2EC;
  --surface: #FFFFFF;
  --ink: #191A17;
  --ink-soft: #5B5B52;
  --line: #E5E1D7;
  --accent: #D7F94A;
  --accent-ink: #20270A;
  --promo: #F0522A;
  --success: #21A366;
  --error: #E5484D;
  --r-lg: 24px;
  --r-md: 16px;
  --r-sm: 12px;
  --shadow-1: 0 2px 10px rgba(20, 20, 15, .05);
  --shadow-2: 0 14px 32px rgba(20, 20, 15, .08);
  --shadow-3: 0 20px 44px rgba(20, 20, 15, .12);
  --white-line: rgba(255, 255, 255, .12);
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
body.no-scroll { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; font-size: 100%; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 32px); }
.section { padding: clamp(56px, 9vw, 112px) 0; }
.section-head { max-width: 760px; margin-bottom: clamp(32px, 5vw, 56px); }
.sec-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--promo);
  margin-bottom: 14px;
}
.sec-label::before { content: ""; width: 20px; height: 2px; background: var(--promo); display: inline-block; }
.section-title { font-size: clamp(32px, 4vw, 50px); line-height: 1.2; font-weight: 850; letter-spacing: -0.02em; }
.section-sub { font-size: 18px; color: var(--ink-soft); margin-top: 16px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 0;
  padding: 13px 22px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 12px;
  cursor: pointer;
  transition: transform .25s ease, background .2s ease, box-shadow .25s ease, color .2s ease;
}
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-accent { background: var(--accent); color: var(--ink); }
.btn-accent:hover { background: #e4ff78; transform: translateY(-2px); box-shadow: var(--shadow-2); }
.btn-accent:active { transform: translateY(1px); box-shadow: none; }
.btn-promo { background: var(--promo); color: #fff; }
.btn-promo:hover { background: #c93e16; transform: translateY(-2px); box-shadow: 0 14px 30px rgba(240, 82, 42, .25); }
.btn-promo:active { transform: translateY(1px); box-shadow: none; }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, .35); }
.btn-ghost:hover { background: rgba(255, 255, 255, .1); transform: translateY(-2px); }
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-weight: 700;
  border-bottom: 1px solid rgba(25, 26, 23, .3);
  padding-bottom: 4px;
  transition: color .2s ease, gap .25s ease, border-color .2s ease;
}
.text-link:hover { color: var(--promo); border-color: var(--promo); gap: 12px; }
.header-cta { padding: 10px 16px; border-radius: 10px; }

.site-header { padding-top: 14px; position: relative; z-index: 40; }
.nav-panel {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  background: #11120f;
  padding: 12px 18px;
  border-radius: 20px;
  box-shadow: 0 18px 48px rgba(20, 20, 15, .14);
}
.brand {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.1;
  color: #fff;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .01em;
  white-space: nowrap;
}
.brand small { color: rgba(255,255,255,.46); font-size: 10px; letter-spacing: .34em; margin-top: 5px; white-space: nowrap; }
.site-nav { flex: 1; display: flex; justify-content: center; }
.nav-links { display: flex; align-items: center; gap: 2px; list-style: none; }
.nav-chip {
  display: inline-block;
  padding: 10px 15px;
  border-radius: 12px;
  color: rgba(255, 255, 255, .72);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: background .2s ease, color .2s ease, transform .2s ease;
}
.nav-chip:hover { background: rgba(255, 255, 255, .12); color: #fff; transform: translateY(-1px); }
.nav-chip:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.nav-chip.active { background: var(--accent); color: var(--ink); }
.nav-chip.active:hover { background: #e2ff6e; color: var(--ink); }
.nav-toggle { display: none; cursor: pointer; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: #fff; margin: 5px 0; border-radius: 4px; transition: transform .25s ease, opacity .2s ease; }
.nav-check { display: none; }

/* ===== Hero 卡片大封面 ===== */
.cat-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
  color: #fff;
  border-radius: 32px;
  padding: clamp(28px, 5vw, 64px);
  overflow: hidden;
  margin-top: clamp(24px, 4vw, 40px);
  background:
    linear-gradient(110deg, rgba(16, 18, 13, .95) 12%, rgba(19, 22, 14, .78) 60%, rgba(15, 17, 12, .54)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  box-shadow: var(--shadow-3);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--accent);
  margin-bottom: 18px;
  background: rgba(215, 249, 74, .08);
  border-radius: 999px;
  padding: 8px 14px;
}
.hero-copy h1 { font-size: clamp(46px, 6.5vw, 84px); line-height: 1.05; letter-spacing: -0.04em; }
.hero-lead { margin-top: 22px; font-size: 19px; line-height: 1.8; color: rgba(255, 255, 255, .86); max-width: 560px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin-top: 32px; }
.hero-actions .text-link { color: #fff; border-color: rgba(255,255,255,.5); }
.hero-actions .text-link:hover { color: var(--accent); border-color: var(--accent); }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  list-style: none;
  margin-top: 42px;
  padding-top: 26px;
  border-top: 1px solid rgba(255,255,255,.14);
}
.hero-stats li strong { display: block; font-size: 16px; color: #fff; margin-bottom: 4px; }
.hero-stats li span { font-size: 13px; color: rgba(255,255,255,.55); line-height: 1.5; display: block; }
.hero-visual { position: relative; }
.main-cover {
  border-radius: 22px;
  aspect-ratio: 4 / 4.8;
  object-fit: cover;
  min-height: 280px;
  width: 100%;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .36);
  border: 1px solid rgba(255,255,255,.12);
}
.hero-note {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  background: rgba(0, 0, 0, .62);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.14);
  color: #fff;
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
}
.hero-note-icon { color: var(--accent); font-size: 20px; }
.hero-note span { font-size: 13px; line-height: 1.45; color: rgba(255,255,255,.85); }
.hero-note b { color: var(--accent); margin-right: 4px; }

/* ===== 看点模块 ===== */
.feature-section { border-bottom: 1px solid var(--line); }
.feature-section .section-head { padding-right: 10px; max-width: none; display: grid; grid-template-columns: 1fr 1.4fr; align-items: end; column-gap: 40px; }
.feature-section .section-sub { margin-top: 12px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feature-tile {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  transition: transform .25s ease, box-shadow .25s ease, border-color .2s ease;
}
.feature-tile:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); border-color: #d8d2c4; }
.feature-no { display: block; font-family: var(--mono); font-size: 17px; color: var(--promo); font-weight: 700; margin-bottom: 28px; }
.feature-tile h3 { font-size: 18px; margin-bottom: 10px; line-height: 1.5; }
.feature-tile p { color: var(--ink-soft); font-size: 14px; line-height: 1.65; }

/* ===== 列表式内容块 ===== */
.field-list { border-top: 1px solid var(--line); }
.field-row {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: 22px;
  border: 1px solid var(--line);
  border-top: 0;
  background: var(--surface);
  transition: box-shadow .25s ease, transform .25s ease;
}
.field-list .field-row:first-of-type { border-radius: 24px 24px 0 0; }
.field-list .field-row:last-of-type { border-radius: 0 0 24px 24px; margin-bottom: 0; }
.field-row:hover { position: relative; box-shadow: var(--shadow-2); z-index: 2; transform: translateY(-2px); }
.field-media { position: relative; border-radius: 15px; overflow: hidden; }
.field-media img { aspect-ratio: 1 / .8; object-fit: cover; width: 100%; }
.field-tag { position: absolute; left: 10px; top: 10px; background: rgba(17, 18, 15, .78); color: #fff; font-size: 11px; padding: 4px 9px; border-radius: 999px; border: 1px solid rgba(255,255,255,.2); }
.field-body { min-width: 0; }
.field-no { font-family: var(--mono); font-size: 12px; color: var(--accent); } 
.field-body h3 { font-size: 21px; margin: 4px 0 8px; }
.field-body p { color: var(--ink-soft); font-size: 15px; line-height: 1.7; max-width: 760px; }
.field-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 700; color: var(--ink); transition: color .2s ease; }
.field-link span { transition: transform .2s ease; }
.field-link:hover { color: var(--promo); }
.field-link:hover span { transform: translateX(4px); }
.field-list-cta { border-top: 1px solid var(--line); margin-top: 22px; padding-top: 20px; text-align: right; }

/* ===== 大背景分割区 ===== */
.quote-banner {
  margin: 0 auto;
  border-radius: 28px;
  padding: clamp(36px, 7vw, 72px);
  background:
    linear-gradient(120deg, rgba(18, 19, 15, .9), rgba(25, 26, 22, .72) 70%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
   color: #fff;
}
.quote-banner .quote-mark { color: var(--accent); font-family: Georgia, serif; font-size: 64px; line-height: .6; display: block; margin-bottom: 10px; }
.quote-banner p { font-size: clamp(22px, 3.2vw, 38px); line-height: 1.45; font-weight: 750; max-width: 900px; }
.quote-banner footer { margin-top: 24px; font-size: 14px; color: rgba(255,255,255,.64); font-weight: 600; letter-spacing: .1em; }

/* ===== FAQ 手风琴 ===== */
.faq-section { background: var(--bg); }
.faq-grid { display: grid; grid-template-columns: 0.8fr 1.4fr; gap: clamp(24px, 5vw, 72px); align-items: start; }
.faq-intro .section-title { font-size: clamp(30px, 3.8vw, 48px); }
.faq-contact-strip { margin-top: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 22px; }
.faq-contact-strip strong { display: block; margin-bottom: 8px; }
.faq-contact-strip p { font-size: 15px; color: var(--ink-soft); margin-bottom: 16px; }
.faq-panel-card { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; overflow: hidden; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 0; }
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  padding: 22px 24px;
  color: var(--ink);
  font-weight: 700;
  font-size: 16px;
  transition: background .2s ease, color .2s ease;
}
.faq-q:hover { background: #F8F6F0; color: var(--promo); }
.faq-q:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.faq-icon { font-size: 22px; font-weight: 400; line-height: 1; color: var(--ink); transition: transform .25s ease; }
.faq-item.open .faq-q { color: var(--ink); }
.faq-item.open .faq-icon { transform: rotate(45deg); color: var(--promo); }
.faq-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .35s ease; }
.faq-a-inner { overflow: hidden; }
.faq-item.open .faq-a { grid-template-rows: 1fr; }
.faq-item.open .faq-a-inner { padding: 0 24px 24px; }
.faq-a p { font-size: 15px; line-height: 1.75; color: var(--ink-soft); }

/* ===== 底部转化 CTA ===== */
.final-cta-card {
  background: #11120f;
  color: #fff;
  border-radius: 28px;
  padding: clamp(30px, 5vw, 60px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 36px;
  align-items: center;
  box-shadow: var(--shadow-3);
}
.final-cta-card h2 { font-size: clamp(28px, 4.6vw, 52px); line-height: 1.2; letter-spacing: -0.02em; }
.final-cta-card h2 em { color: var(--accent); font-style: normal; }
.final-cta-card p { color: rgba(255,255,255,.72); margin-top: 12px; max-width: 560px; }
.cta-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; align-content: center; }

/* ===== Footer ===== */
.footer { background: #11120f; color: rgba(255,255,255,.78); margin-top: clamp(48px, 10vw, 96px); }
.footer .container { padding-top: 52px; padding-bottom: 30px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 36px; padding-bottom: 36px; }
.footer-brand { color: #fff; font-size: 18px; font-weight: 800; line-height: 1.2; }
.footer-brand small { display: block; color: rgba(255,255,255,.42); font-size: 10px; letter-spacing: .24em; margin-top: 8px; }
.footer-about { margin-top: 14px; font-size: 14px; color: rgba(255,255,255,.62); line-height: 1.8; max-width: 360px; }
.footer-title { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 14px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,.65); transition: color .2s ease, padding-left .2s ease; }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-links li span { font-size: 13px; color: rgba(255,255,255,.55); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding-top: 22px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; font-size: 13px; color: rgba(255,255,255,.5); }

/* ===== Reveal animation ===== */
html.js .reveal-item { opacity: 0; transform: translateY(14px); transition: opacity .45s ease, transform .45s ease; }
html.js .reveal-item.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  html.js .reveal-item { opacity: 1; transform: none; }
}

/* ===== Responsive ===== */
@media (max-width: 1180px) {
  .brand { font-size: 15px; }
  .nav-chip { padding: 8px 11px; font-size: 13px; }
  .header-cta { padding: 8px 12px; font-size: 13px; }
}
@media (max-width: 1024px) {
  .nav-panel { flex-wrap: wrap; padding: 12px 16px; }
  .nav-panel .brand { flex: 1; }
  .nav-toggle { display: flex; flex-direction: column; justify-content: center; padding: 4px 2px; }
  .header-cta { order: 3; }
  .site-nav { display: none; flex-basis: 100%; order: 4; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--white-line); }
  .nav-check:checked ~ .site-nav { display: block; }
  .nav-links { flex-direction: column; align-items: stretch; gap: 4px; }
  .nav-chip { width: 100%; text-align: center; }
  .cat-hero { grid-template-columns: 1fr; }
  .hero-visual { max-width: 480px; }
  .feature-section .section-head { grid-template-columns: 1fr; gap: 10px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .final-cta-card { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .section { padding: 52px 0; }
  .hero-stats { grid-template-columns: 1fr; gap: 4px; }
  .hero-actions .btn, .hero-actions .text-link { width: 100%; justify-content: center; }
  .field-row { grid-template-columns: 1fr; }
  .field-media img { aspect-ratio: 16 / 10; }
  .field-link { align-self: flex-start; }
  .feature-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: left; }
}
@media (max-width: 420px) {
  .hero-copy h1 { font-size: 42px; }
  .hero-actions .btn { padding: 11px 14px; font-size: 14px; flex: 1; }
  .header-cta { display: none; }
  .nav-panel { gap: 10px; }
  .field-row { padding: 16px; }
}

/* roulang page: article */
:root{
  --bg:#F4F2EC;
  --surface:#FFFFFF;
  --ink:#191A17;
  --ink-soft:#5B5B52;
  --line:#E5E1D7;
  --accent:#D7F94A;
  --promo:#F0522A;
  --ok:#21A366;
  --error:#E5484D;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(20,20,15,.05);
  --shadow-md:0 12px 32px rgba(20,20,15,.08);
  --shadow-lg:0 20px 44px rgba(20,20,15,.12);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--accent);
  color:var(--ink);
  font-size:13px;
  font-weight:800;
  letter-spacing:.1em;
  line-height:1;
  padding:8px 15px;
  border-radius:999px;
}
.section{padding:clamp(60px,8vw,110px) 0}
.section-head{max-width:780px;margin-bottom:44px}
.section-title{
  font-size:clamp(32px,3.6vw,52px);
  font-weight:800;
  line-height:1.22;
  margin-top:18px;
  letter-spacing:-.01em;
}
.section-sub{
  color:var(--ink-soft);
  font-size:clamp(18px,1.6vw,22px);
  line-height:1.65;
  margin-top:14px;
}
#latest,#categories,#faq,#contact{scroll-margin-top:120px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:0;
  border-radius:var(--radius-sm);
  padding:14px 24px;
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  line-height:1.2;
  transition:transform .25s ease,background .2s ease,box-shadow .25s ease,color .2s ease,border-color .2s ease;
}
.btn:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
.btn-accent{
  background:var(--accent);
  color:var(--ink);
  box-shadow:0 4px 0 rgba(0,0,0,.06);
}
.btn-accent:hover{
  background:#ffffff;
  color:var(--ink);
  transform:translateY(-2px);
  box-shadow:var(--shadow-md);
}
.btn-accent:active{transform:translateY(0)}
.btn-ink{
  background:var(--ink);
  color:#ffffff;
  box-shadow:0 4px 0 rgba(0,0,0,.06);
}
.btn-ink:hover{
  background:#33312C;
  color:var(--accent);
  transform:translateY(-2px);
}
.btn-ink:active{transform:translateY(0)}
.btn-line{
  background:transparent;
  color:var(--ink);
  border:1px solid var(--ink);
}
.btn-line:hover{
  background:var(--ink);
  color:#ffffff;
  transform:translateY(-2px);
}
.btn-line:active{transform:translateY(0)}
.site-header{padding:20px 0 6px}
.nav-panel{
  position:relative;
  display:flex;
  align-items:center;
  gap:22px;
  background:var(--ink);
  border-radius:18px;
  padding:12px 18px 12px 22px;
  box-shadow:var(--shadow-lg);
  color:#F5F4EE;
}
.brand{
  display:flex;
  flex-direction:column;
  justify-content:center;
  line-height:1.25;
  font-weight:900;
  font-size:20px;
  color:#ffffff;
  white-space:nowrap;
  letter-spacing:.01em;
}
.brand small{
  font-size:10px;
  font-weight:500;
  letter-spacing:.22em;
  opacity:.55;
  margin-top:2px;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
.site-nav{margin-left:auto}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-chip{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 16px;
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  color:rgba(255,255,255,.84);
  background:transparent;
  transition:transform .25s ease,background .2s ease,color .2s ease,box-shadow .25s ease;
}
.nav-chip:hover{
  background:var(--accent);
  color:var(--ink);
  transform:translateY(-2px);
}
.nav-chip.active{
  background:rgba(255,255,255,.12);
  color:#ffffff;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);
}
.nav-chip.active:hover{background:var(--accent);color:var(--ink)}
.header-cta{
  padding:11px 20px;
  font-size:14px;
  background:var(--accent);
  color:var(--ink);
  margin-left:6px;
  white-space:nowrap;
}
.header-cta:hover{background:#fff}
.nav-check{
  position:absolute;
  opacity:0;
  pointer-events:none;
}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  cursor:pointer;
  margin-left:auto;
  padding:12px 6px;
  z-index:5;
}
.nav-toggle span{
  display:block;
  width:24px;
  height:2px;
  background:#fff;
  border-radius:2px;
  transition:transform .3s ease,opacity .2s ease;
}
.article-stage{
  padding:clamp(34px,5vw,64px) 0 0;
}
.article-shell{
  max-width:1060px;
  margin:0 auto;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
  padding:clamp(28px,5vw,68px);
}
.article-breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  color:var(--ink-soft);
  margin-bottom:24px;
}
.article-breadcrumb a{
  color:var(--ink);
  font-weight:600;
  padding:4px 0;
  transition:color .2s ease;
}
.article-breadcrumb a:hover{color:var(--promo)}
.bc-sep{opacity:.45}
.article-title{
  font-size:clamp(32px,4.6vw,58px);
  line-height:1.2;
  font-weight:900;
  letter-spacing:-.01em;
  margin-bottom:26px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 16px;
  padding-bottom:30px;
  margin-bottom:36px;
  border-bottom:1px solid var(--line);
}
.meta-chip{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:999px;
  background:#F1EFE8;
  border:1px solid var(--line);
  color:var(--ink);
  font-size:14px;
  font-weight:700;
}
.meta-date{
  color:var(--ink-soft);
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.meta-date + .meta-date::before{
  content:"\00b7";
  margin-right:12px;
  opacity:.5;
}
.article-content{
  max-width:820px;
  margin:0 auto;
  font-size:17px;
  line-height:1.85;
  color:#2A2922;
  overflow-wrap:break-word;
}
.article-content::after{
  content:"";
  display:table;
  clear:both;
}
.article-content h2{
  font-size:clamp(25px,2.6vw,33px);
  line-height:1.4;
  font-weight:800;
  margin:2.1em 0 .7em;
  color:var(--ink);
}
.article-content h3{
  font-size:clamp(21px,1.8vw,25px);
  line-height:1.5;
  font-weight:700;
  margin:1.9em 0 .6em;
  color:var(--ink);
}
.article-content h4{
  font-size:18px;
  font-weight:700;
  margin:1.6em 0 .5em;
  color:var(--ink);
}
.article-content p{
  margin:1.05em 0;
}
.article-content a{
  color:#2F6B4F;
  font-weight:600;
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.article-content a:hover{
  color:var(--promo);
}
.article-content strong{font-weight:800;color:var(--ink)}
.article-content ul,
.article-content ol{
  margin:1em 0 1em 1.2em;
}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{
  margin:.5em 0;
  padding-left:.4em;
}
.article-content blockquote{
  margin:1.5em 0;
  padding:18px 24px;
  background:#F5F3EC;
  border-left:4px solid var(--accent);
  border-radius:0 12px 12px 0;
  color:var(--ink);
}
.article-content blockquote p{margin:.4em 0}
.article-content img{
  margin:1.5em auto;
  border-radius:16px;
  box-shadow:var(--shadow-sm);
}
.article-content pre{
  margin:1.5em 0;
  padding:20px 22px;
  background:var(--ink);
  color:#F7F6F1;
  border-radius:14px;
  overflow-x:auto;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:15px;
  line-height:1.7;
}
.article-content code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  background:#EFEDE6;
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 7px;
  font-size:.9em;
}
.article-content pre code{
  background:transparent;
  border:0;
  padding:0;
  color:inherit;
}
.article-empty{
  text-align:center;
  padding:80px 24px;
}
.empty-mark{
  width:68px;
  height:68px;
  margin:0 auto 24px;
  border-radius:20px;
  background:var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:34px;
  font-weight:900;
  color:var(--ink-soft);
}
.article-empty h1{
  font-size:44px;
  font-weight:900;
  line-height:1.25;
  margin-bottom:20px;
}
.article-empty .btn{margin-top:12px}
.article-bottom{
  margin-top:48px;
  padding-top:32px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.bottom-copy{
  font-size:14px;
  color:var(--ink-soft);
}
.mini-tags{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
}
.mini-tags a{
  display:inline-flex;
  align-items:center;
  min-height:36px;
  padding:6px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  transition:background .2s ease,border-color .2s ease,color .2s ease,transform .25s ease;
}
.mini-tags a:hover{
  background:var(--ink);
  border-color:var(--ink);
  color:#fff;
  transform:translateY(-2px);
}
.section-read{
  background:#ECE9E0;
}
.topic-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.topic-card{
  background:var(--surface);
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  transition:transform .3s ease,box-shadow .3s ease;
}
.topic-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.topic-media{
  display:block;
  position:relative;
  aspect-ratio:4/3;
  overflow:hidden;
  background:#E3DED2;
}
.topic-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.topic-card:hover .topic-media img{
  transform:scale(1.04);
}
.topic-go{
  position:absolute;
  left:16px;
  bottom:16px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:var(--ink);
  color:#fff;
  padding:8px 14px;
  font-size:14px;
  font-weight:700;
  border-radius:999px;
  box-shadow:0 8px 20px rgba(0,0,0,.18);
}
.topic-body{
  padding:26px;
}
.topic-body .tag{
  display:inline-block;
  background:var(--accent);
  color:var(--ink);
  font-size:12px;
  font-weight:800;
  padding:5px 11px;
  border-radius:999px;
  margin-bottom:14px;
  letter-spacing:.04em;
}
.topic-body h3{
  font-size:24px;
  font-weight:800;
  line-height:1.35;
}
.topic-body h3 a{
  transition:color .2s ease;
}
.topic-body h3 a:hover{
  color:var(--promo);
}
.topic-body p{
  color:var(--ink-soft);
  font-size:16px;
  line-height:1.7;
  margin-top:12px;
}
.topic-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:18px;
  font-weight:700;
  font-size:15px;
  color:var(--ink);
  border-bottom:2px solid var(--accent);
  padding-bottom:3px;
  transition:gap .25s ease,color .2s ease;
}
.topic-link:hover{
  gap:12px;
  color:var(--promo);
}
.section-faq{
  background:var(--bg);
}
.faq-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:clamp(26px,4vw,52px);
  display:grid;
  grid-template-columns:0.9fr 1.3fr;
  gap:clamp(28px,5vw,70px);
  box-shadow:var(--shadow-md);
}
.faq-intro .section-title{
  font-size:clamp(28px,3vw,42px);
  margin-top:16px;
}
.faq-intro .section-sub{
  font-size:16px;
  color:var(--ink-soft);
}
.faq-link-card{
  margin-top:28px;
  background:#F5F3EC;
  border:1px solid var(--line);
  border-radius:16px;
  padding:22px;
}
.faq-link-card p{
  font-size:15px;
  color:var(--ink-soft);
  margin-bottom:16px;
}
.faq-list{
  display:flex;
  flex-direction:column;
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-item:first-child{
  border-top:1px solid var(--line);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  background:transparent;
  border:0;
  padding:22px 2px;
  text-align:left;
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  cursor:pointer;
  transition:color .2s ease,background .2s ease;
}
.faq-q:hover{
  color:var(--promo);
}
.faq-icon{
  position:relative;
  flex:0 0 26px;
  height:26px;
  border-radius:8px;
  border:1px solid var(--line);
  background:#F1EFE8;
  transition:background .2s ease,border-color .2s ease,transform .3s ease;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  width:12px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:background .2s ease,transform .3s ease;
}
.faq-icon::after{
  transform:translate(-50%,-50%) rotate(90deg);
}
.faq-q:hover .faq-icon{
  background:var(--accent);
  border-color:var(--accent);
}
.faq-item.active .faq-icon{
  transform:rotate(225deg);
  background:var(--accent);
  border-color:var(--accent);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .38s ease;
}
.faq-a-inner{
  padding:0 44px 26px 2px;
  color:var(--ink-soft);
  font-size:16px;
  line-height:1.75;
}
.faq-a-inner p{margin:.5em 0}
.section-contact{
  background:#ECE9E0;
}
.contact-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
  padding:clamp(28px,5vw,64px);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(30px,5vw,72px);
}
.contact-intro .section-title{
  font-size:clamp(28px,3vw,44px);
  margin-top:18px;
}
.contact-intro .section-sub{
  font-size:17px;
  margin-top:14px;
}
.check-list{
  margin-top:26px;
  display:grid;
  gap:14px;
}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  color:var(--ink);
  font-size:16px;
}
.check-list li::before{
  content:"";
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--accent);
  border:2px solid var(--ink);
  flex:0 0 8px;
  margin-top:10px;
}
.contact-form{
  background:#F8F6F0;
  border:1px solid var(--line);
  border-radius:18px;
  padding:26px;
}
.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.field{
  display:flex;
  flex-direction:column;
  gap:6px;
  margin-bottom:18px;
}
.field label{
  font-size:14px;
  font-weight:700;
  color:var(--ink);
}
.field input,
.field select,
.field textarea{
  width:100%;
  border:1px solid var(--line);
  background:#fff;
  border-radius:10px;
  padding:13px 15px;
  font-size:15px;
  color:var(--ink);
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{
  resize:vertical;
  min-height:120px;
}
.field input:focus,
.field select:focus,
.field textarea:focus{
  border-color:var(--ink);
  box-shadow:0 0 0 3px rgba(25,26,23,.10);
}
.field input::placeholder,
.field textarea::placeholder{
  color:#A5A49B;
}
.form-note{
  font-size:14px;
  color:var(--ink-soft);
  margin-top:16px;
  line-height:1.6;
}
.form-note.success{
  color:var(--ok);
  font-weight:700;
}
.contact-form .btn{
  width:100%;
  margin-top:6px;
}
.footer{
  background:#161712;
  color:rgba(255,255,255,.78);
  padding:70px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:44px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{
  display:flex;
  flex-direction:column;
  color:#fff;
  font-weight:900;
  font-size:21px;
  letter-spacing:.02em;
  line-height:1.3;
}
.footer-brand small{
  font-size:10px;
  letter-spacing:.22em;
  font-weight:500;
  opacity:.5;
  font-family:"SFMono-Regular",Consolas,monospace;
  margin-top:4px;
}
.footer-about{
  max-width:340px;
  margin-top:18px;
  font-size:15px;
  line-height:1.8;
  color:rgba(255,255,255,.6);
}
.footer-title{
  color:#fff;
  font-weight:800;
  font-size:16px;
  margin-bottom:18px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.footer-links a,
.footer-links li{
  color:rgba(255,255,255,.62);
  font-size:15px;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{
  color:var(--accent);
  padding-left:4px;
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  padding-top:26px;
  font-size:13px;
  color:rgba(255,255,255,.45);
}
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .5s ease,transform .5s ease;
}
.reveal.in{
  opacity:1;
  transform:none;
}
@media (max-width:1180px){
  .site-nav{
    position:absolute;
    top:calc(100% + 12px);
    left:0;
    right:0;
    background:var(--ink);
    border-radius:18px;
    padding:14px;
    display:none;
    z-index:20;
    box-shadow:var(--shadow-lg);
  }
  .nav-check:checked ~ .site-nav{
    display:block;
  }
  .nav-toggle{
    display:flex;
  }
  .site-nav{
    margin-left:0;
  }
  .nav-links{
    flex-direction:column;
    align-items:stretch;
    gap:6px;
  }
  .nav-chip{
    justify-content:flex-start;
    width:100%;
    padding:0 14px;
    height:44px;
  }
  .header-cta{
    margin-left:auto;
  }
}
@media (max-width:980px){
  .topic-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .faq-panel{
    grid-template-columns:1fr;
    gap:34px;
  }
  .contact-panel{
    grid-template-columns:1fr;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:34px;
  }
}
@media (max-width:680px){
  .container{
    padding:0 16px;
  }
  .brand{
    font-size:17px;
  }
  .brand small{
    font-size:9px;
    letter-spacing:.12em;
  }
  .header-cta{
    font-size:13px;
    padding:9px 14px;
  }
  .topic-grid{
    grid-template-columns:1fr;
    gap:18px;
  }
  .article-shell{
    padding:24px 18px;
    border-radius:20px;
  }
  .article-meta{
    gap:8px;
  }
  .article-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
  .mini-tags{
    width:100%;
  }
  .form-row{
    grid-template-columns:1fr;
    gap:0;
  }
  .contact-form{
    padding:20px;
  }
  .faq-panel{
    padding:22px 18px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
  }
  .footer-bottom{
    flex-direction:column;
    gap:6px;
  }
}
@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation:none!important;
    transition:none!important;
  }
  html{scroll-behavior:auto}
  .reveal{
    opacity:1;
    transform:none;
  }
}

.reveal{opacity:1;transform:none}

/* roulang page: category2 */
:root {
  --bg: #F4F2EC;
  --surface: #FFFFFF;
  --ink: #191A17;
  --ink-soft: #5B5B52;
  --line: #E5E1D7;
  --accent: #D7F94A;
  --promo: #F0522A;
  --ok: #21A366;
  --error: #E5484D;
  --text-on-dark: #F7F5EF;
  --muted-on-dark: #ADACA2;
  --white-line: rgba(255, 255, 255, .12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 2px 10px rgba(20, 20, 15, .05);
  --shadow-md: 0 16px 36px rgba(20, 20, 15, .09);
  --shadow-hover: 0 20px 44px rgba(20, 20, 15, .12);
  --container: 1240px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

::selection {
  background: var(--accent);
  color: var(--ink);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: clamp(16px, 3vw, 36px);
  padding-right: clamp(16px, 3vw, 36px);
}

.main {
  overflow: hidden;
}

.section {
  padding: clamp(64px, 10vh, 120px) 0;
  scroll-margin-top: 110px;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: clamp(30px, 4vw, 54px);
}

.section-head h2,
.path-title h2,
.latest-title h2,
.contact-title h2,
.faq-title h2 {
  color: var(--ink);
  font-size: clamp(32px, 3.4vw, 52px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -.02em;
  margin-top: 6px;
}

.section-note {
  max-width: 420px;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.7;
}

.kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--promo);
  background: rgba(240, 82, 42, .08);
  border: 1px solid rgba(240, 82, 42, .2);
  padding: 5px 12px;
  border-radius: 999px;
  letter-spacing: .08em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .25s ease, background .2s ease, box-shadow .25s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}

.btn .arrow {
  transition: transform .25s ease;
  font-weight: 400;
}

.btn:hover .arrow {
  transform: translateX(4px);
}

.btn:active {
  transform: translateY(1px) scale(.98);
}

.btn-accent {
  background: var(--accent);
  color: var(--ink);
  box-shadow: 0 10px 28px rgba(215, 249, 74, .16);
}

.btn-accent:hover {
  background: #E4FF78;
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(215, 249, 74, .2);
}

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

.btn-dark:hover {
  background: #2C2D28;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .32);
}

.btn-outline-light:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.site-header {
  padding: 16px 0 4px;
  position: relative;
  z-index: 80;
}

.nav-panel {
  position: relative;
  background: var(--ink);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-radius: 20px;
  padding: 12px 14px 12px clamp(16px, 2vw, 26px);
  box-shadow: 0 16px 38px rgba(25, 26, 23, .14);
}

.brand {
  display: block;
  flex: 0 0 auto;
  font-size: 21px;
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.25;
  padding: 5px 0;
}

.brand small {
  display: block;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .2em;
  color: var(--muted-on-dark);
  margin-top: 2px;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 13px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, .78);
  border: 1px solid transparent;
  transition: background .2s ease, color .2s ease, transform .2s ease;
}

.nav-chip .chip-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  opacity: .42;
}

.nav-chip:hover {
  background: var(--accent);
  color: var(--ink);
  transform: translateY(-1px);
}

.nav-chip:hover .chip-dot {
  opacity: 1;
}

.nav-chip.active {
  background: rgba(215, 249, 74, .14);
  color: var(--accent);
  border-color: rgba(215, 249, 74, .28);
}

.nav-chip.active:hover {
  background: var(--accent);
  color: var(--ink);
}

.nav-check {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 46px;
  height: 46px;
  justify-content: center;
  align-items: center;
  border-radius: 12px;
  cursor: pointer;
  border: 1px solid var(--white-line);
  background: rgba(255, 255, 255, .05);
}

.nav-toggle span {
  background: #fff;
  width: 18px;
  height: 2px;
  border-radius: 4px;
  transition: transform .25s ease, opacity .2s ease;
}

.header-cta {
  padding: 10px 18px;
  font-size: 14px;
}

.page-hero {
  padding: clamp(20px, 4vw, 48px) 0 8px;
}

.hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: center;
  background:
    linear-gradient(120deg, rgba(25, 26, 23, .66) 0%, rgba(25, 26, 23, .74) 55%, rgba(25, 26, 23, .56) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-radius: var(--radius-lg);
  padding: clamp(30px, 6vw, 78px);
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.hero-panel::before {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -100px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(215, 249, 74, .16), transparent 70%);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--white-line);
  border-radius: 999px;
  padding: 7px 14px;
  margin-bottom: 26px;
  letter-spacing: .04em;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(215, 249, 74, .14);
}

.hero-copy h1 {
  font-size: clamp(44px, 6.8vw, 82px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -.03em;
  margin: 0 0 18px;
}

.hero-lead {
  font-size: clamp(21px, 2.2vw, 28px);
  line-height: 1.5;
  color: #F1F0E9;
  font-weight: 600;
  margin-bottom: 14px;
}

.hero-sub {
  color: var(--muted-on-dark);
  max-width: 560px;
  font-size: 16px;
  line-height: 1.75;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-tags li {
  border: 1px solid var(--white-line);
  background: rgba(255, 255, 255, .05);
  padding: 5px 12px;
  border-radius: 999px;
  color: rgba(255, 255, 255, .74);
  font-size: 13px;
  transition: border-color .25s ease, background .25s ease, color .25s ease;
}

.hero-tags li:hover {
  border-color: rgba(215, 249, 74, .5);
  color: var(--accent);
  background: rgba(215, 249, 74, .08);
}

.hero-visual {
  position: relative;
  z-index: 1;
}

.hero-cover {
  position: relative;
  margin: 0;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 28px 50px rgba(0, 0, 0, .22);
  border: 1px solid rgba(255, 255, 255, .14);
}

.hero-cover img {
  width: 100%;
  height: clamp(280px, 32vw, 430px);
  object-fit: cover;
}

.hero-cover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 55%;
  background: linear-gradient(transparent, rgba(25, 26, 23, .82));
  pointer-events: none;
}

.hero-cover figcaption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 16px;
  color: #fff;
  font-size: 14px;
  letter-spacing: .04em;
  z-index: 2;
  line-height: 1.6;
}

.hero-cover figcaption b {
  display: block;
  font-size: 19px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 2px;
}

.zone-section {
  padding-top: clamp(48px, 8vh, 96px);
}

.zone-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.zone-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .28s ease, box-shadow .25s ease, border-color .25s ease;
}

.zone-card:nth-child(even) {
  transform: translateY(10px);
}

.zone-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: #D8D3C6;
}

.zone-card:nth-child(even):hover {
  transform: translateY(-3px);
}

.zone-media {
  position: relative;
  height: clamp(180px, 19vw, 235px);
  overflow: hidden;
}

.zone-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}

.zone-card:hover .zone-media img {
  transform: scale(1.04);
}

.zone-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(25, 26, 23, .36));
  pointer-events: none;
}

.zone-index {
  position: absolute;
  left: 14px;
  top: 14px;
  color: var(--ink);
  background: var(--accent);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 800;
  padding: 5px 10px;
  box-shadow: 0 8px 22px rgba(215, 249, 74, .24);
}

.zone-body {
  padding: 24px 24px 26px;
}

.zone-body h3 {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.01em;
  margin-bottom: 9px;
}

.zone-body p {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.72;
  margin-bottom: 18px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.tag-row span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #F7F5F0;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 13px;
}

.tag-row span::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--promo);
  opacity: .7;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--promo);
  font-weight: 600;
  font-size: 14px;
  transition: gap .25s ease, color .2s ease;
}

.text-link:hover {
  color: var(--ink);
  gap: 10px;
}

.path-panel {
  background:
    linear-gradient(135deg, rgba(25, 26, 23, .88) 0%, rgba(36, 37, 32, .84) 60%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-radius: var(--radius-lg);
  padding: clamp(28px, 5vw, 60px);
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.path-panel::after {
  content: "STEPS";
  position: absolute;
  right: -12px;
  bottom: -36px;
  font-size: 140px;
  font-weight: 900;
  color: rgba(255, 255, 255, .04);
  letter-spacing: -.08em;
  line-height: 1;
  pointer-events: none;
}

.path-title {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.path-title h2 {
  color: #fff;
}

.path-title p {
  color: var(--muted-on-dark);
  margin-top: 12px;
  font-size: 17px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 38px;
  position: relative;
  z-index: 1;
}

.step-card {
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--white-line);
  border-radius: 18px;
  padding: 22px;
  min-height: 178px;
  display: flex;
  flex-direction: column;
  transition: background .25s ease, transform .28s ease, border-color .25s ease;
}

.step-card:hover {
  background: rgba(215, 249, 74, .08);
  border-color: rgba(215, 249, 74, .32);
  transform: translateY(-3px);
}

.step-num {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--accent);
  color: var(--ink);
  font-weight: 900;
  font-size: 16px;
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.step-card p {
  font-size: 14px;
  color: var(--muted-on-dark);
  line-height: 1.7;
}

.latest-wrap {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.latest-copy {
  padding: clamp(28px, 5vw, 58px);
}

.latest-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--promo);
  border-radius: 999px;
  background: rgba(240, 82, 42, .08);
  padding: 5px 12px;
  margin-bottom: 18px;
}

.latest-label::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--promo);
}

.latest-copy h2 {
  font-size: clamp(25px, 2vw, 34px);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
}

.latest-copy p {
  color: var(--ink-soft);
  line-height: 1.75;
  font-size: 15px;
}

.latest-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
  margin-bottom: 24px;
}

.latest-tags span {
  background: #F7F5F0;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  border: 1px solid var(--line);
  color: var(--ink-soft);
}

.latest-media {
  min-height: 100%;
  position: relative;
  overflow: hidden;
}

.latest-media img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.latest-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(25, 26, 23, 0) 40%, rgba(25, 26, 23, .54));
}

.latest-meta {
  position: absolute;
  bottom: 20px;
  right: 20px;
  left: 20px;
  color: #fff;
  z-index: 1;
  font-size: 14px;
  text-align: right;
  line-height: 1.6;
}

.faq-section {
  padding-bottom: clamp(28px, 5vh, 60px);
}

.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: clamp(28px, 5vw, 76px);
  align-items: start;
}

.faq-title h2 {
  margin-bottom: 14px;
}

.faq-title p {
  color: var(--ink-soft);
  font-size: 16px;
  max-width: 320px;
}

.faq-list {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  padding: 4px 26px;
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

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

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  cursor: pointer;
  color: var(--ink);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.5;
  padding: 20px 0;
  list-style: none;
  transition: color .2s ease, padding-left .25s ease;
}

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

.faq-item summary:hover {
  color: var(--promo);
}

.faq-item summary:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
  border-radius: 6px;
}

.plus-icon {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 22px;
  font-weight: 300;
  transition: transform .3s ease, background .2s ease, color .2s ease, border-color .2s ease;
}

.faq-item[open] .plus-icon {
  transform: rotate(45deg);
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.faq-a {
  padding: 0 0 22px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

.contact-section {
  padding-top: clamp(20px, 4vh, 48px);
  scroll-margin-top: 80px;
}

.contact-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: minmax(300px, .85fr) minmax(0, 1.15fr);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.contact-side {
  background:
    linear-gradient(145deg, rgba(25, 26, 23, .9) 0%, rgba(35, 36, 31, .94) 100%),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color: #fff;
  padding: clamp(28px, 5vw, 58px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 38px;
}

.contact-side h2 {
  font-size: clamp(28px, 2.8vw, 44px);
  line-height: 1.3;
  font-weight: 800;
  margin-bottom: 16px;
}

.contact-side p {
  color: var(--muted-on-dark);
  font-size: 16px;
  line-height: 1.8;
  max-width: 420px;
}

.contact-note li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: rgba(255, 255, 255, .82);
  padding: 10px 0;
  border-top: 1px solid var(--white-line);
  font-size: 15px;
}

.contact-note li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 900;
  line-height: 1.6;
}

.contact-form-wrap {
  padding: clamp(24px, 4vw, 56px);
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.field {
  min-width: 0;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--ink);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  background: #FBF9F4;
  border: 1px solid #DED9CF;
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 15px;
  color: var(--ink);
  transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
}

.field textarea {
  min-height: 110px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ink);
  background: var(--surface);
  box-shadow: 0 0 0 4px rgba(25, 26, 23, .06);
}

.form-submit {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.form-submit .btn {
  flex: 0 0 auto;
}

.form-tip {
  font-size: 14px;
  color: var(--ink-soft);
  opacity: .92;
}

.form-tip.success {
  color: var(--ok);
  font-weight: 600;
}

.footer {
  background: var(--ink);
  color: rgba(255, 255, 255, .78);
  padding: 60px 0 30px;
  margin-top: clamp(24px, 4vh, 60px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 28px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--white-line);
}

.footer-brand {
  font-size: 24px;
  font-weight: 900;
  color: #fff;
  line-height: 1.3;
  letter-spacing: -.02em;
}

.footer-brand small {
  display: block;
  font-size: 10px;
  letter-spacing: .18em;
  font-weight: 400;
  color: var(--muted-on-dark);
  margin-top: 4px;
}

.footer-about {
  margin-top: 14px;
  color: var(--muted-on-dark);
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}

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

.footer-links li {
  padding: 5px 0;
  font-size: 14px;
}

.footer-links a {
  color: rgba(255, 255, 255, .68);
  transition: color .2s ease, padding-left .22s ease;
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 5px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding: 22px 0 0;
  color: rgba(255, 255, 255, .4);
  font-size: 13px;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(25, 26, 23, .52);
  outline-offset: 3px;
}

html.js-enabled [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .55s ease, transform .55s ease;
}

html.js-enabled [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 1080px) {
  .nav-panel {
    gap: 12px;
  }

  .brand {
    font-size: 18px;
  }

  .nav-chip {
    padding: 8px 9px;
    font-size: 13px;
  }

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

}

@media (max-width: 960px) {
  .nav-toggle {
    display: inline-flex;
    flex: 0 0 auto;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    background: #22231F;
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 18px;
    padding: 12px;
    opacity: 0;
    transform: translateY(-10px);
    visibility: hidden;
    pointer-events: none;
    transition: opacity .28s ease, transform .28s ease, visibility .28s;
    box-shadow: 0 22px 44px rgba(0, 0, 0, .22);
  }

  .nav-check:checked~.site-nav {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
  }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .nav-chip {
    display: flex;
    justify-content: space-between;
  }

  .nav-check:checked~.nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-check:checked~.nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .nav-check:checked~.nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero-panel {
    grid-template-columns: 1fr;
  }

  .hero-cover img {
    height: 320px;
  }

  .contact-panel {
    grid-template-columns: 1fr;
  }

  .contact-side {
    min-height: 360px;
  }

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

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

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

  .step-card {
    min-height: auto;
  }

  .latest-wrap {
    grid-template-columns: 1fr;
  }

  .latest-media img {
    position: static;
    min-height: 260px;
  }

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

  .contact-form {
    grid-template-columns: 1fr;
  }

  .contact-form .full {
    grid-column: auto;
  }

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

  .zone-card:nth-child(even) {
    transform: none;
  }

  .zone-card:hover:nth-child(even) {
    transform: translateY(-4px);
  }

  .zone-card:nth-child(even):hover {
    transform: translateY(-4px);
  }

  .zone-media {
    height: 210px;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 16px;
  }

  .brand {
    font-size: 16px;
    max-width: 120px;
  }

  .brand small {
    font-size: 8px;
  }

  .header-cta {
    display: none;
  }

  .hero-panel {
    padding: 22px 20px 28px;
    border-radius: 22px;
  }

  .hero-copy h1 {
    font-size: 46px;
  }

  .hero-cover img {
    height: 240px;
  }

  .hero-tags {
    gap: 7px;
  }

  .btn {
    padding: 12px 16px;
    font-size: 14px;
  }

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

  .footer-bottom {
    flex-direction: column;
  }

  .contact-form-wrap,
  .contact-side {
    padding: 24px 20px;
  }

  .zone-body {
    padding: 20px;
  }

  .zone-body p {
    font-size: 14px;
  }

  .section-head h2,
  .path-title h2,
  .latest-title h2,
  .contact-title h2,
  .faq-title h2 {
    font-size: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }

  html.js-enabled [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* roulang page: category4 */
:root{
  --bg:#F4F2EC;
  --surface:#FFFFFF;
  --ink:#191A17;
  --ink-soft:#5B5B52;
  --line:#E5E1D7;
  --accent:#D7F94A;
  --promo:#F0522A;
  --success:#21A366;
  --error:#E5484D;
  --radius-panel:24px;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-sm:0 2px 10px rgba(20,20,15,.05);
  --shadow-md:0 10px 24px rgba(20,20,15,.08);
  --shadow-hover:0 20px 44px rgba(20,20,15,.12);
  --transition:transform .25s ease, background .2s ease, box-shadow .25s ease, color .2s ease;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);background:var(--bg);color:var(--ink);line-height:1.75;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media(max-width:600px){.container{padding:0 16px}}
::selection{background:var(--accent);color:var(--ink)}
/* header styles */
.site-header{padding:16px 0 8px;position:relative;z-index:50}
.nav-panel{display:flex;align-items:center;gap:18px;background:var(--ink);border-radius:20px;padding:10px 16px;box-shadow:var(--shadow-md);position:relative}
.brand{display:flex;flex-direction:column;line-height:1.1;padding:4px 10px;color:#fff;cursor:pointer;border-radius:12px;transition:background .2s ease}
.brand small{font-size:10px;letter-spacing:.18em;color:rgba(255,255,255,.55);margin-top:3px;font-family:var(--font-mono)}
.brand:hover{background:rgba(255,255,255,.04)}
.site-nav{margin-left:auto;display:flex}
.nav-links{display:flex;list-style:none;gap:6px}
.nav-links li{display:block}
.nav-chip{display:inline-block;padding:7px 14px;border-radius:10px;color:rgba(255,255,255,.72);font-size:14px;line-height:1.4;transition:background .2s ease,color .2s ease;white-space:nowrap;border:1px solid transparent}
.nav-chip:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-chip.active{background:var(--accent);color:var(--ink);font-weight:600}
.header-cta{background:var(--accent);color:var(--ink);border-radius:10px;padding:8px 16px;font-weight:600;font-size:15px;transition:transform .2s ease,background .2s ease,color .2s ease}
.header-cta:hover{background:#fff;transform:translateY(-1px);color:var(--ink)}
.nav-check,.nav-toggle{display:none}
@media(max-width:1024px){ 
  .nav-panel{flex-wrap:wrap}
  .btn.header-cta{margin-left:auto}
  .site-nav{order:3;width:100%;overflow-x:auto;padding:6px 0 2px}
  .nav-links{flex-wrap:nowrap;min-width:max-content;padding-bottom:4px}
  .nav-chip{padding:6px 12px;font-size:14px}
}
@media(max-width:768px){
  .site-header{padding:8px 0}
  .nav-panel{align-items:center}
  .nav-check{display:none}
  .nav-toggle{display:flex;flex-direction:column;justify-content:center;align-items:center;cursor:pointer;background:rgba(255,255,255,.06);border-radius:12px;width:40px;height:40px;margin-left:auto}
  .nav-toggle span{width:18px;height:2px;background:#fff;display:block;margin:2px 0;transition:transform .2s ease}
  .nav-check:checked ~ .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .nav-check:checked ~ .nav-toggle span:nth-child(2){opacity:0}
  .nav-check:checked ~ .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .site-nav{display:none;order:3;width:100%}
  .nav-check:checked ~ .site-nav{display:block}
  .nav-links{flex-direction:column;gap:2px;padding:10px 0 6px;}
  .nav-links li{width:100%}
  .nav-chip{display:block;white-space:normal}
  .header-cta{font-size:13px;padding:7px 12px}
  .brand small{font-size:9px}
}
/* footer styles */
.footer{background:var(--ink);color:rgba(255,255,255,.8);margin-top:0;padding-top:80px}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr .9fr;gap:48px;padding:20px 0 56px}
.footer-brand{font-size:22px;font-weight:800;color:#fff;line-height:1.15;letter-spacing:.02em}
.footer-brand small{display:block;font-size:10px;font-family:var(--font-mono);color:rgba(255,255,255,.45);margin-top:8px;letter-spacing:.15em}
.footer-about{font-size:15px;line-height:1.8;color:rgba(255,255,255,.65);margin-top:18px;max-width:340px}
.footer-title{color:#fff;font-size:16px;font-weight:600;margin-bottom:20px;letter-spacing:.04em}
.footer-links{list-style:none}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.6);font-size:15px;transition:color .2s ease;border-bottom:1px solid transparent}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:26px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;line-height:1.6;color:rgba(255,255,255,.46)}
.footer-bottom span{display:inline-block}
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px 30px}
}
@media(max-width:768px){
  .footer{padding-top:50px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}
  .footer-brand{font-size:19px}
  .footer-bottom{flex-direction:column;padding-bottom:18px}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr}
}
/* page inner styles */
.main{padding:16px 0 70px}
.cat-hero{margin-bottom:56px;position:relative;overflow:hidden;border-radius:calc(var(--radius-panel) + 4px);background:rgba(255,255,255,0.5)}
.cat-hero-frame{display:grid;grid-template-columns:1.05fr .95fr;background:var(--ink);border-radius:24px;overflow:hidden;box-shadow:var(--shadow-md)}
.cat-hero-art{display:flex;align-items:center;justify-content:center;min-height:420px;position:relative}
.cat-hero-art:before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat}
.cat-hero-art:after{content:"";position:absolute;inset:0;background:linear-gradient(to top right,rgba(25,26,23,.94) 10%,rgba(25,26,23,.38) 70%,rgba(25,26,23,.85))}
.hero-inner{position:relative;z-index:3;padding:60px clamp(32px,5vw,70px);color:#fff}
.cat-kicker{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--ink);font-size:12px;font-weight:600;padding:4px 12px;border-radius:40px;letter-spacing:.05em;margin-bottom:22px}
.cat-kicker i{font-size:11px}
.cat-title{font-size:clamp(30px,4vw,56px);font-weight:800;line-height:1.12;letter-spacing:.01em;color:#fff}
.cat-title span{color:var(--accent)}
.cat-hero-lead{font-size:clamp(16px,1.8vw,20px);line-height:1.7;color:rgba(255,255,255,.78);margin-top:24px;max-width:520px}
.cat-hero-side{position:relative;display:flex;align-items:center;justify-content:center}
.cat-hero-side img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cat-side-overlay{position:relative;z-index:2;padding:40px;width:100%;height:100%;display:flex;flex-direction:column;justify-content:flex-end;background:linear-gradient(to top,rgba(25,26,23,.82) 0%,rgba(25,26,23,.08) 55%)}
.cat-hero-stat{color:#fff}
.stat-number{font-family:var(--font-mono);font-size:40px;font-weight:700;line-height:1;color:var(--accent)}
.stat-label{font-size:14px;color:rgba(255,255,255,.75);margin-top:10px}
@media(max-width:1024px){
  .cat-hero-frame{grid-template-columns:1fr}
  .cat-hero-art{min-height:320px}
  .cat-hero-art:after{background:linear-gradient(to bottom,rgba(25,26,23,.45),rgba(25,26,23,.7))}
  .hero-inner{padding:44px 32px}
  .cat-hero-side{display:none}
}
@media(max-width:600px){.hero-inner{padding:34px 20px}.cat-title{font-size:32px}}
.section-block{padding:clamp(64px,9vh,110px) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:clamp(28px,5vw,48px)}
.section-head h2{font-size:clamp(28px,3.8vw,46px);line-height:1.2;letter-spacing:-.01em}
.section-head .section-kicker{display:block;margin-bottom:10px;font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--ink-soft)}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--ink-soft);letter-spacing:.08em}
/* sticky split */
.split-info{display:grid;grid-template-columns:250px 1fr;gap:56px;align-items:start}
.side-dir{position:sticky;top:24px;background:var(--ink);padding:28px 20px;border-radius:20px;color:#fff}
.side-dir-title{font-size:16px;font-weight:700;margin-bottom:18px;display:flex;justify-content:space-between;align-items:center}
.side-dir-title span{color:var(--accent);font-family:var(--font-mono)}
.dir-list{list-style:none}
.dir-list li+li{border-top:1px solid rgba(255,255,255,.08)}
.dir-list a{display:flex;justify-content:space-between;align-items:center;padding:10px 0;font-size:14px;color:rgba(255,255,255,.74);border-left:2px solid transparent;transition:color .25s ease}
.dir-list a i{opacity:0;transition:transform .2s ease,opacity .2s ease;font-size:12px}
.dir-list a:hover{color:var(--accent)}
.dir-list a:hover i{opacity:1}
.dir-act{margin-top:24px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1)}
.dir-act a{color:rgba(255,255,255,.9);font-size:14px;display:inline-flex;align-items:center;gap:6px}
.dir-act a i{font-size:12px}
.reading-rail{max-width:860px}
.rail-head{margin-bottom:24px;display:flex;align-items:center;gap:12px}
.rail-head .index-chip{background:var(--accent);color:var(--ink);width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:800;font-family:var(--font-mono)}
.rail-head h2{font-size:clamp(20px,3vw,30px);line-height:1.3}
.rail-head .eyebrow{font-weight:600;letter-spacing:.05em}
.timeline{list-style:none;margin-top:20px}
.tl-item{position:relative;padding:0 0 0 44px}
.tl-item:not(:last-child){margin-bottom:42px}
.tl-item:before{content:"";position:absolute;left:8px;top:22px;bottom:-14px;width:1px;background:var(--line)}
.tl-dot{position:absolute;left:0;top:8px;width:17px;height:17px;background:var(--accent);border-radius:50%;border:3px solid #fff;box-shadow:0 0 0 2px var(--ink)}
.tl-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:14px;line-height:1.4;margin-bottom:8px}
.tl-head h3{font-size:24px;font-weight:760;line-height:1.35}
.tl-meta{color:var(--ink-soft);font-size:13px;display:inline-flex;gap:10px;font-weight:400}
.tl-meta i{color:var(--accent);font-style:normal;font-family:var(--font-mono);opacity:0.85}
.tl-item p{font-size:17px;color:var(--ink-soft);line-height:1.85;max-width:620px}
.tl-link{display:inline-flex;align-items:center;gap:8px;color:var(--ink);background:transparent;border-bottom:2px solid var(--ink);padding:2px 0;margin-top:12px;font-size:15px;font-weight:600;transition:border .2s ease,gap .2s ease}
.tl-link:hover{border-color:var(--accent);gap:12px}
.tl-link i{font-size:14px}
/* callout */
.promo-note{margin:48px 0 0;background:var(--accent);border-radius:20px;padding:32px;color:var(--ink);display:flex;align-items:center;gap:36px;justify-content:space-between;flex-wrap:wrap}
.promo-note h3{font-size:24px;font-weight:800;line-height:1.4}
.promo-note p{font-size:16px;line-height:1.8}
.promo-note a{background:#fff;border-radius:10px;padding:12px 24px;font-weight:700;transition:transform .2s ease}
.promo-note a:hover{transform:translateY(-2px)}
@media(max-width:900px){
  .split-info{grid-template-columns:1fr}
  .side-dir{position:relative;top:auto;margin-bottom:42px}
}
@media(max-width:520px){
  .timeline li{padding-left:28px}
  .tl-head h3{font-size:20px}
  .tl-item p{font-size:16px}
}
/* end article with cover */
.see-more-block{background:var(--surface);border:1px solid var(--line);border-radius:28px;margin-top:46px;overflow:hidden;display:flex;align-items:center;box-shadow:var(--shadow-sm)}
.see-cover{flex:0 0 180px;position:relative;background:var(--ink)}
.see-cover img{width:220px;height:220px;object-fit:cover}
.see-more-info{padding:32px 32px 32px 40px;flex:1}
.see-more-info .company-chip{display:inline-block;background:var(--ink);color:#fff;font-size:12px;letter-spacing:.06em;padding:4px 10px;border-radius:20px}
.see-more-info h3{font-size:24px;line-height:1.4;margin-top:14px}
.see-more-info p{margin:10px 0 16px;color:var(--ink-soft);font-size:16px}
@media(max-width:720px){.see-more-block{flex-direction:column}.see-cover{width:100%;flex:none}.see-cover img{width:100%;height:220px}}
/* feature index */
.feature-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:16px}
.feature-card{background:var(--surface);padding:28px 30px;border-radius:20px;border:1px solid var(--line);box-shadow:var(--shadow-sm);display:flex;gap:16px;align-items:flex-start;transition:transform .25s ease,box-shadow .25s ease}
.feature-card i{font-size:24px;color:var(--ink)}
.feature-card .fc{font-size:28px;line-height:1;font-family:var(--font-mono);font-weight:800;color:var(--accent);background:var(--ink);border-radius:12px;padding:14px;width:54px;height:54px;flex:none;text-align:center;display:flex;justify-content:center;align-items:center}
.feature-card h3{font-size:19px;font-weight:700;margin:8px 0 6px}
.feature-card p{font-size:15px;color:var(--ink-soft);line-height:1.75}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
@media(max-width:700px){.feature-list{grid-template-columns:1fr}}
/* guide step */
.step-wrap{margin-top:10px}
.step-block{display:flex;gap:22px;align-items:flex-start}
.step-no{font-family:var(--font-mono);font-size:16px;background:var(--ink);color:var(--accent);border-radius:12px;padding:10px 14px;font-weight:800;min-width:52px;text-align:center;flex:none}
.step-content h3{font-size:19px;font-weight:700;margin-bottom:4px}
.step-content ul{list-style:disc;padding-left:22px;color:var(--ink-soft);font-size:16px;line-height:2;margin-top:8px}
.step-block + .step-block{margin-top:24px;padding-top:24px;border-top:1px solid var(--line)}
/* faq */
.faq-block{background:var(--surface);border-radius:28px;border:1px solid var(--line);box-shadow:var(--shadow-sm);padding:clamp(28px,5vw,64px)}
.faq-grid{display:grid;grid-template-columns:.9fr 1.4fr;gap:40px}
.faq-intro h2{font-size:clamp(28px,4vw,48px);line-height:1.2;margin-bottom:18px}
.faq-intro p{color:var(--ink-soft);font-size:17px;max-width:340px}
.faq-list{list-style:none}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;background:none;border:0;text-align:left;padding:24px 32px 18px 0;width:100%;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;display:flex;justify-content:space-between}
.faq-q:hover{color:var(--promo)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding-right:28px}
.faq-a p{padding-bottom:22px;color:var(--ink-soft);font-size:15px;line-height:1.8}
.faq-item[open] .faq-a{max-height:400px}
.faq-icon{transition:transform .2s ease;color:var(--ink);font-size:22px;font-weight:400}
details[open] .faq-icon{transform:rotate(45deg);color:var(--promo)}
@media(max-width:900px){.faq-grid{grid-template-columns:1fr}}
/* cta section */
.cta-final{background:var(--ink);border-radius:32px;overflow:hidden;padding:clamp(36px,6vw,76px);color:#fff;display:grid;grid-template-columns:1fr 1.2fr;gap:36px;margin-top:clamp(56px,10vh,90px)}
.cta-header h2{font-size:clamp(28px,4vw,48px);color:#fff;line-height:1.2;margin-bottom:16px}
.cta-header span{color:var(--accent)}
.cta-header p{color:rgba(255,255,255,.7);font-size:16px;max-width:400px}
.cta-contact{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.cta-contact a{border:1px solid rgba(255,255,255,.2);background:transparent;border-radius:12px;padding:12px 20px;transition:all .3s;display:inline-flex;align-items:center;gap:10px;font-size:14px}
.cta-contact a:hover{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.cta-form-area{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:18px;padding:24px}
.cta-form-area input,.cta-form-area select,.cta-form-area textarea{display:block;width:100%;background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:12px 16px;font-size:14px;margin:10px 0}
.cta-form-area label{font-size:13px;color:rgba(255,255,255,.85);display:block;margin-top:14px}
.cta-form-area button{width:100%;background:var(--accent);color:var(--ink);border:0;border-radius:10px;padding:15px;font-weight:800;font-size:16px;margin-top:20px;cursor:pointer;transition:background .2s ease, transform .2s ease}
.cta-form-area button:hover{border-color:var(--ink);background:#fff}
@media(max-width:760px){.cta-final{grid-template-columns:1fr}}
/* buttons reused */
.btn{display:inline-block;border:0;cursor:pointer;transition:var(--transition);font-family:var(--font-sans)}
.btn-accent{background:var(--accent);color:var(--ink);border-radius:var(--radius-btn);padding:10px 18px;font-weight:600;font-size:15px}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:var(--radius-btn);padding:10px 18px;font-weight:600;font-size:15px}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-1px)}
.btn-ink{background:var(--ink);color:#fff;border-radius:var(--radius-btn);padding:11px 22px;font-weight:700;font-size:15px}
.btn-ink:hover{background:var(--promo);transform:translateY(-2px)}
/* chip */
.chip{display:inline-flex;align-items:center;padding:4px 14px;border-radius:20px;background:var(--accent);color:var(--ink);font-size:12px;letter-spacing:.04em;font-weight:600;text-transform:uppercase}
/* misc */
::marker{color:var(--accent)}
.sticky-anchor{margin-top:-56px;padding-top:56px}
/* focus utility */
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--promo);outline-offset:2px}
@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}}

/* roulang page: category3 */
:root {
  --bg: #F4F2EC;
  --surface: #FFFFFF;
  --ink: #191A17;
  --ink-soft: #5B5B52;
  --line: #E5E1D7;
  --accent: #D7F94A;
  --promo: #F0522A;
  --success: #21A366;
  --danger: #E5484D;
  --radius-lg: 26px;
  --radius-md: 16px;
  --radius-sm: 11px;
  --container: 1240px;
  --shadow-sm: 0 2px 10px rgba(20,20,15,.05);
  --shadow-md: 0 18px 42px rgba(20,20,15,.1);
  --ease: .25s cubic-bezier(.25,.8,.35,1);
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 30px;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
a {
  color: inherit;
  text-decoration: none;
}
button, input, textarea, select {
  font: inherit;
}
ul, ol {
  margin: 0;
  padding: 0;
}
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 40px);
}
.section {
  padding-block: clamp(64px, 9vw, 110px);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.3;
  cursor: pointer;
  background: transparent;
  color: var(--ink);
  transition: transform .25s ease, background .2s ease, color .2s ease, border-color .2s ease, box-shadow .25s ease;
}
.btn:active {
  transform: translateY(1px) scale(.99);
}
.btn-accent {
  background: var(--accent);
  color: var(--ink);
}
.btn-accent:hover {
  background: #c8ee32;
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(25,26,23,.14);
}
.btn-light {
  background: #fff;
  color: var(--ink);
}
.btn-light:hover {
  background: var(--accent);
  transform: translateY(-2px);
}
.btn-outline {
  border-color: rgba(255,255,255,.55);
  color: #fff;
}
.btn-outline:hover {
  background: #fff;
  color: var(--ink);
  border-color: #fff;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  transition: opacity .2s ease;
}
.text-link:hover {
  opacity: .75;
}

/* ===== Shared Header ===== */
.site-header {
  position: relative;
  z-index: 50;
  padding-top: 18px;
}
.nav-panel {
  position: relative;
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--ink);
  color: #fff;
  border-radius: 18px;
  padding: 13px 18px;
  box-shadow: 0 18px 36px rgba(0,0,0,.12);
}
.brand {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.2;
  color: #fff;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: .01em;
  white-space: nowrap;
  transition: opacity .2s ease;
}
.brand:hover {
  opacity: .84;
}
.brand small {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
  letter-spacing: .18em;
  color: var(--accent);
  margin-top: 3px;
  font-weight: 600;
}
.site-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}
.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.nav-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  color: rgba(255,255,255,.78);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .25s ease;
}
.nav-chip:hover {
  background: rgba(255,255,255,.1);
  color: #fff;
  transform: translateY(-1px);
}
.nav-chip.active {
  background: var(--accent);
  color: var(--ink);
}
.header-cta {
  padding: 9px 16px;
  font-size: 14px;
  white-space: nowrap;
}
.nav-check,
.nav-toggle {
  display: none;
}

/* ===== Shared Footer ===== */
.footer {
  background: var(--ink);
  color: rgba(255,255,255,.78);
  padding-top: clamp(52px, 8vw, 80px);
  padding-bottom: 26px;
  border-radius: 30px 30px 0 0;
  margin-top: clamp(40px, 7vw, 80px);
}
.footer-brand {
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
}
.footer-brand small {
  display: block;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
  letter-spacing: .18em;
  color: var(--accent);
  margin-top: 4px;
}
.footer-about {
  color: rgba(255,255,255,.62);
  font-size: 14px;
  max-width: 340px;
  line-height: 1.8;
  margin: 14px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  padding-bottom: clamp(32px, 5vw, 50px);
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-title {
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  margin: 4px 0 16px;
  letter-spacing: .03em;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 11px;
  font-size: 14px;
}
.footer-links a {
  color: rgba(255,255,255,.62);
  transition: color .2s ease, transform .2s ease;
  display: inline-block;
}
.footer-links a:hover {
  color: #fff;
  transform: translateX(3px);
}
.footer-links li:not(a) {
  color: rgba(255,255,255,.5);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 20px;
  color: rgba(255,255,255,.42);
  font-size: 13px;
}

/* ===== Hero ===== */
.hero-wrap {
  margin-top: 24px;
}
.hero-panel {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: var(--ink);
  border-radius: var(--radius-lg);
  padding: clamp(36px, 6vw, 72px);
  min-height: 520px;
  background-image: linear-gradient(100deg, rgba(25,26,23,.97) 0%, rgba(25,26,23,.82) 42%, rgba(25,26,23,.5) 78%), url('/assets/images/backpic/back-3.png');
  background-position: center;
  background-size: cover;
}
.hero-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 78% 45%, rgba(215,249,74,.1), transparent 36%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: clamp(30px, 5vw, 72px);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 22px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--accent);
}
.hero-copy h1 {
  margin: 0;
  font-size: clamp(44px, 5.6vw, 76px);
  line-height: 1.06;
  letter-spacing: -.02em;
  font-weight: 900;
}
.hero-sub {
  max-width: 600px;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.75;
  color: rgba(255,255,255,.82);
  margin: 24px 0 32px;
}
.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px 24px;
}
.hero-actions .text-link {
  color: #fff;
}
.hero-media {
  position: relative;
}
.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,.22);
  box-shadow: 0 30px 70px rgba(0,0,0,.32);
}
.hero-badge {
  position: absolute;
  right: 14px;
  bottom: 14px;
  left: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  background: rgba(25,26,23,.84);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 14px;
  padding: 10px 15px;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.hero-badge span:last-child {
  color: var(--accent);
}

/* ===== Section heads ===== */
.section-head {
  max-width: 840px;
  margin-bottom: clamp(28px, 4vw, 46px);
}
.section-title {
  margin: 0;
  font-size: clamp(30px, 3.6vw, 48px);
  line-height: 1.22;
  letter-spacing: -.015em;
  font-weight: 850;
}
.section-lead {
  margin: 14px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.8;
  max-width: 680px;
}
.center {
  text-align: center;
}
.center .section-head {
  margin-left: auto;
  margin-right: auto;
}

/* ===== Value strip ===== */
.value-section {
  padding-top: clamp(52px, 6vw, 84px);
}
.value-card {
  background: var(--surface);
  border: 1px solid rgba(0,0,0,.04);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  overflow: hidden;
}
.value-item {
  padding: clamp(26px, 4vw, 48px) clamp(22px, 3.6vw, 44px);
  position: relative;
}
.value-item + .value-item {
  border-left: 1px solid var(--line);
}
.value-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--accent);
  color: var(--ink);
  border-radius: 50%;
  font-weight: 800;
  font-size: 14px;
  margin-bottom: 16px;
}
.value-item h3 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 800;
}
.value-item p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15.5px;
  line-height: 1.75;
}

/* ===== Directory ===== */
.directory-section {
  background: var(--bg);
}
.directory-panel {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,.04);
  overflow: hidden;
}
.dir-row {
  display: grid;
  grid-template-columns: 56px 180px 1fr 42px;
  align-items: center;
  gap: clamp(16px, 3vw, 32px);
  padding: clamp(20px, 3vw, 28px) clamp(20px, 4vw, 40px);
  transition: background .2s ease, transform .25s ease;
}
.dir-row + .dir-row {
  border-top: 1px solid var(--line);
}
.dir-row:hover {
  background: #FAF8F2;
  transform: translateY(-2px);
}
.dir-index {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-soft);
}
.dir-row strong {
  font-size: 19px;
  font-weight: 800;
}
.dir-desc {
  color: var(--ink-soft);
  font-size: 15px;
  width: 100%;
}
.dir-arrow {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 17px;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .25s ease;
}
.dir-row:hover .dir-arrow {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  transform: translateX(3px);
}

/* ===== Timeline editorial ===== */
.timeline-section {
  background: linear-gradient(180deg, #F1EFE8 0%, #F4F2EC 100%);
}
.timeline-layout {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: clamp(44px, 8vw, 110px);
  align-items: start;
}
.timeline-note {
  position: relative;
}
.timeline-note .section-title {
  font-size: clamp(28px, 3.2vw, 44px);
  margin: 0;
}
.timeline-note p {
  color: var(--ink-soft);
  margin: 18px 0 24px;
  line-height: 1.85;
}
.note-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 15px;
}
.note-link span {
  color: var(--promo);
}
.timeline-stream {
  position: relative;
  padding-left: 26px;
}
.timeline-stream::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 12px;
  bottom: 16px;
  width: 1px;
  background: #CFC9BB;
}
.tl-item {
  position: relative;
  padding-bottom: 30px;
}
.tl-item:last-child {
  padding-bottom: 0;
}
.tl-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 28px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--ink);
  border: 3px solid var(--accent);
  transform: translateX(-50%);
}
.tl-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  padding: clamp(22px, 3vw, 30px);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease, transform .25s ease;
}
.tl-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.tl-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.tag {
  display: inline-flex;
  align-items: center;
  background: var(--accent);
  color: var(--ink);
  font-size: 12.5px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: .03em;
}
.tag-clear {
  background: transparent;
  border: 1px solid var(--line);
}
.tl-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  line-height: 1.4;
  letter-spacing: -.01em;
}
.tl-card p {
  margin: 0 0 14px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}
.tl-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: #7A7A70;
  font-size: 13px;
}

/* ===== Scene rows ===== */
.scene-section {
  padding-top: 0;
}
.scene-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(40px, 7vw, 100px);
  align-items: start;
}
.scene-guide .eyebrow {
  color: var(--ink);
}
.scene-guide h2 {
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.3;
  margin: 0;
}
.scene-guide p {
  color: var(--ink-soft);
  margin: 18px 0 0;
}
.scene-links {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.scene-row {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px 14px;
  padding: clamp(18px, 2.6vw, 26px) clamp(20px, 3vw, 32px);
}
.scene-row + .scene-row {
  border-top: 1px solid var(--line);
}
.scene-row:hover {
  background: #FAF8F2;
}
.scene-index {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  font-weight: 800;
  color: var(--ink-soft);
  padding-top: 3px;
}
.scene-row strong {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
}
.scene-row p {
  grid-column: 2;
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
}

/* ===== Process dark ===== */
.process-panel {
  background:
    linear-gradient(115deg, rgba(25,26,23,.96) 0, rgba(25,26,23,.95) 40%, rgba(30,33,26,.88) 100%),
    url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  border-radius: var(--radius-lg);
  padding: clamp(36px, 5vw, 70px);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.process-panel .eyebrow {
  color: var(--accent);
}
.process-title {
  margin: 0;
  font-size: clamp(28px, 3.4vw, 46px);
  line-height: 1.24;
  letter-spacing: -.01em;
}
.process-lead {
  color: rgba(255,255,255,.72);
  font-size: 17px;
  margin: 16px 0 40px;
  max-width: 760px;
  line-height: 1.8;
}
.process-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  counter-reset: step;
}
.process-list li {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-md);
  padding: 22px 20px;
  transition: background .2s ease, transform .25s ease, border-color .2s ease;
  counter-increment: step;
}
.process-list li:hover {
  background: rgba(255,255,255,.1);
  transform: translateY(-3px);
  border-color: var(--accent);
}
.process-list li::before {
  content: "0" counter(step);
  display: block;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 14px;
}
.process-list strong {
  display: block;
  font-size: 17px;
  margin-bottom: 7px;
  color: #fff;
}
.process-list span {
  color: rgba(255,255,255,.68);
  font-size: 14px;
  line-height: 1.7;
}

/* ===== Contact CTA ===== */
.contact-section {
  padding-top: 0;
}
.contact-panel {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 0;
  overflow: hidden;
}
.contact-copy {
  background: var(--ink);
  color: #fff;
  padding: clamp(32px, 5vw, 60px);
}
.contact-copy .eyebrow {
  color: var(--accent);
  margin-bottom: 18px;
}
.contact-copy h2 {
  font-size: clamp(28px, 3vw, 44px);
  margin: 0;
  line-height: 1.28;
}
.contact-copy p {
  color: rgba(255,255,255,.78);
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.85;
}
.contact-copy ul {
  list-style: none;
  margin: 26px 0 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-copy li {
  display: flex;
  gap: 10px;
  color: rgba(255,255,255,.82);
  font-size: 15px;
}
.contact-copy li::before {
  content: "·";
  color: var(--accent);
  font-weight: 900;
}
.contact-form {
  padding: clamp(28px, 4vw, 56px);
}
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}
.field label {
  font-size: 14px;
  font-weight: 700;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #FBFAF6;
  color: var(--ink);
  padding: 12px 14px;
  font-size: 15px;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.field textarea {
  min-height: 120px;
  resize: vertical;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ink);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(215,249,74,.28);
}
.form-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 16px;
}
.form-note {
  color: #8A887D;
  font-size: 13px;
  margin-top: 12px;
}
.form-status {
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(33,163,102,.12);
  color: #147A48;
  font-size: 14px;
  font-weight: 600;
}
.form-status.visible {
  display: block;
}

/* ===== FAQ ===== */
.faq-section {
  padding-top: 0;
}
.faq-layout {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  gap: clamp(40px, 7vw, 100px);
  align-items: start;
}
.faq-head h2 {
  font-size: clamp(28px, 3.2vw, 44px);
  margin: 0;
  line-height: 1.28;
}
.faq-head p {
  color: var(--ink-soft);
  margin: 14px 0 0;
}
.faq-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-item + .faq-item {
  border-top: 1px solid var(--line);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: left;
  padding: 20px 22px;
  font-weight: 800;
  font-size: 16px;
  transition: background .2s ease;
}
.faq-q:hover {
  background: #FAF8F2;
}
.faq-icon {
  position: relative;
  flex: 0 0 22px;
  height: 22px;
  border-radius: 50%;
  transition: background .2s ease, transform .25s ease;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 11px;
  height: 1.6px;
  background: var(--ink);
  transform: translate(-50%, -50%);
}
.faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-a {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height .4s ease, opacity .35s ease;
}
.faq-a-content {
  padding: 0 22px 22px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.85;
}
.faq-item.open .faq-a {
  max-height: 320px;
  opacity: 1;
}

/* ===== Reveal animation ===== */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .55s ease, transform .55s ease;
}
.js [data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .nav-panel {
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 16px;
  }
  .site-nav {
    flex-basis: 100%;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    order: 5;
    transition: max-height .35s ease, opacity .25s ease;
  }
  .nav-links {
    flex-direction: column;
    gap: 4px;
    padding: 8px 0 2px;
    width: 100%;
  }
  .nav-chip {
    width: 100%;
    justify-content: flex-start;
    border-radius: 10px;
    padding: 11px 14px;
  }
  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    margin: 0 0 0 auto;
    cursor: pointer;
    padding: 8px;
  }
  .nav-toggle span {
    height: 2px;
    width: 100%;
    background: #fff;
    border-radius: 4px;
    transition: transform .25s ease, opacity .2s ease;
  }
  .nav-check {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
  }
  .nav-check:checked ~ .site-nav {
    max-height: 480px;
    opacity: 1;
  }
  .nav-check:checked + .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-check:checked + .nav-toggle span:nth-child(2) {
    opacity: 0;
  }
  .nav-check:checked + .nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .timeline-layout,
  .scene-grid,
  .faq-layout {
    grid-template-columns: 1fr;
  }
  .process-list {
    grid-template-columns: 1fr 1fr;
  }
  .contact-panel {
    grid-template-columns: 1fr;
  }
  .hero-panel {
    padding: clamp(28px, 5vw, 44px);
  }
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .hero-media {
    max-width: 500px;
  }
}
@media (max-width: 767px) {
  .body {
    font-size: 16px;
  }
  .value-card,
  .process-list,
  .form-columns {
    grid-template-columns: 1fr;
  }
  .value-item + .value-item {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .dir-row {
    grid-template-columns: 34px 1fr 28px;
    gap: 12px;
  }
  .dir-desc {
    grid-column: 2;
  }
  .dir-arrow {
    grid-column: 3;
    grid-row: 1 / span 2;
  }
  .dir-row strong {
    font-size: 17px;
  }
  .process-list {
    gap: 10px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
  }
  .hero-badge {
    position: static;
    margin-top: 16px;
    background: rgba(255,255,255,.1);
  }
  .faq-q {
    font-size: 15px;
    padding: 18px 18px;
  }
}
@media (max-width: 520px) {
  .header-cta {
    display: none;
  }
  .brand {
    font-size: 18px;
  }
  .hero-panel {
    border-radius: 20px;
    min-height: 0;
  }
  .hero-sub {
    font-size: 17px;
  }
  .dir-desc {
    grid-column: 1 / -1;
    font-size: 14px;
  }
  .dir-arrow {
    grid-row: auto;
  }
  .footer-links {
    font-size: 14px;
  }
  .contact-copy,
  .contact-form,
  .process-panel {
    padding: 24px 18px;
  }
  .process-panel {
    border-radius: 20px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    transform: none !important;
  }
  .js [data-reveal] {
    opacity: 1;
  }
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}