/* roulang page: index */
:root{
  --ink:#111512;
  --ink-soft:#4A524C;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --line:#E4E2D9;
  --brand:#0F4C3A;
  --brand-2:#2BD69A;
  --accent:#E9663D;
  --r-sm:2px;
  --r-md:4px;
  --r-lg:8px;
  --shadow-1:0 1px 2px rgba(17,21,18,.04);
  --shadow-2:0 12px 32px rgba(17,21,18,.08);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'PingFang SC','HarmonyOS Sans','Noto Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--ink);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.02em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--brand-2);color:var(--ink);}

.container{max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media(min-width:768px){.container{padding-left:24px;padding-right:24px;}}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px;}}

.section{padding-top:60px;padding-bottom:60px;}
@media(min-width:768px){.section{padding-top:80px;padding-bottom:80px;}}
@media(min-width:1024px){.section{padding-top:104px;padding-bottom:104px;}}
.section-tight{padding-top:44px;padding-bottom:44px;}
@media(min-width:1024px){.section-tight{padding-top:64px;padding-bottom:64px;}}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:72px;display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s ease,border-color .24s ease,backdrop-filter .24s ease;
}
.header-inner{display:flex;align-items:center;gap:28px;width:100%;}
.brand{display:flex;align-items:baseline;gap:6px;font-size:20px;font-weight:700;letter-spacing:-0.02em;color:#fff;transition:color .24s ease;}
.brand span{font-size:11px;font-weight:500;letter-spacing:.18em;opacity:.78;}
.nav-desktop{display:none;align-items:center;gap:26px;margin-left:auto;}
.nav-link{
  position:relative;font-size:15px;color:rgba(255,255,255,.86);
  padding:6px 0;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;
  background:var(--brand-2);transition:right .24s cubic-bezier(.22,1,.36,1);
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{right:0;}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{right:0;background:var(--brand-2);}
.nav-link.is-active::before{
  content:"";position:absolute;left:-11px;top:50%;width:4px;height:4px;border-radius:50%;
  background:var(--accent);transform:translateY(-50%);
}
.header-cta{
  display:none;margin-left:8px;font-size:14px;padding:10px 20px;border:1px solid rgba(255,255,255,.5);
  border-radius:var(--r-md);color:#fff;transition:all .24s ease;
}
.header-cta:hover{background:#fff;color:var(--ink);border-color:#fff;}
.menu-toggle{
  margin-left:auto;width:44px;height:44px;border:1px solid rgba(255,255,255,.4);border-radius:var(--r-md);
  background:transparent;display:flex;align-items:center;justify-content:center;gap:0;flex-direction:column;
}
.menu-toggle i{display:block;width:18px;height:1.5px;background:#fff;margin:3px 0;transition:all .24s ease;}

.site-header.is-scrolled{
  background:rgba(247,246,241,.92);
  backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
}
.site-header.is-scrolled .brand{color:var(--ink);}
.site-header.is-scrolled .nav-link{color:var(--ink-soft);}
.site-header.is-scrolled .nav-link:hover,
.site-header.is-scrolled .nav-link.is-active{color:var(--ink);}
.site-header.is-scrolled .header-cta{border-color:var(--ink);color:var(--ink);}
.site-header.is-scrolled .header-cta:hover{background:var(--brand);border-color:var(--brand);color:#fff;}
.site-header.is-scrolled .menu-toggle{border-color:var(--line);}
.site-header.is-scrolled .menu-toggle i{background:var(--ink);}

@media(max-width:1023px){
  .site-header{background:rgba(247,246,241,.95);border-bottom-color:var(--line);backdrop-filter:blur(10px);}
  .site-header .brand{color:var(--ink);}
  .site-header .menu-toggle{border-color:var(--line);}
  .site-header .menu-toggle i{background:var(--ink);}
}
@media(min-width:1024px){
  .nav-desktop{display:flex;}
  .header-cta{display:inline-block;}
  .menu-toggle{display:none;}
}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--paper);
  transform:translateY(-100%);transition:transform .36s cubic-bezier(.22,1,.36,1);
  display:flex;flex-direction:column;padding:26px 20px 40px;
}
.drawer.is-open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-md);background:transparent;font-size:18px;line-height:1;color:var(--ink);}
.drawer-link{display:block;font-size:22px;font-weight:600;padding:18px 0;border-bottom:1px solid var(--line);color:var(--ink);}
.drawer-link.is-active{color:var(--brand);}
.drawer-foot{margin-top:auto;font-size:13px;color:var(--ink-soft);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-md);border:1px solid transparent;
  font-size:15px;font-weight:600;position:relative;overflow:hidden;
  transition:background .24s ease,color .24s ease,border-color .24s ease;
  min-height:44px;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand-2);
  transform:scaleX(0);transform-origin:left;transition:transform .24s cubic-bezier(.22,1,.36,1);
}
.btn-primary:hover{background:var(--ink);}
.btn-primary:hover::after{transform:scaleX(1);}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.btn-light:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn:focus-visible,.nav-link:focus-visible,.text-link:focus-visible,.card:focus-visible,
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand-2);outline-offset:3px;
}
.text-link{
  display:inline-block;position:relative;font-size:15px;font-weight:600;color:var(--ink);
  background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;
  transition:background-size .28s cubic-bezier(.22,1,.36,1),color .2s ease;
  padding-bottom:2px;
}
.text-link:hover{background-size:100% 1px;color:var(--brand);}
.text-link.light{color:#fff;background-image:linear-gradient(var(--brand-2),var(--brand-2));}
.text-link.light:hover{color:var(--brand-2);}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:92vh;display:flex;align-items:center;
  background-color:#111512;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
  padding:120px 0 64px;
}
.hero::before{
  content:"";position:absolute;inset:0;background:rgba(17,21,18,.68);
}
.hero::after{
  content:"";position:absolute;right:-140px;bottom:-140px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(43,214,154,.32);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:760px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.1em;
  color:var(--brand-2);border:1px solid rgba(43,214,154,.4);border-radius:var(--r-sm);
  padding:6px 12px;margin-bottom:24px;
}
.hero h1{
  font-size:clamp(2.5rem,6vw,5rem);line-height:1.08;letter-spacing:-0.03em;color:#fff;
}
.hero-sub{
  margin-top:22px;font-size:clamp(1rem,1.4vw,1.15rem);line-height:1.8;
  color:rgba(255,255,255,.78);max-width:600px;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin-top:36px;}
.hero-trust{
  position:relative;z-index:2;margin-top:64px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16);
  display:grid;gap:18px;
}
.hero-trust div{font-size:13.5px;color:rgba(255,255,255,.7);padding-left:14px;position:relative;}
.hero-trust div::before{
  content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--brand-2);
}
@media(min-width:768px){.hero-trust{grid-template-columns:repeat(3,1fr);gap:32px;}}
.hero-scroll{
  position:absolute;left:50%;bottom:26px;transform:translateX(-50%);font-size:12px;letter-spacing:.24em;
  color:rgba(255,255,255,.5);z-index:2;
}

/* ---------- 通用标题 ---------- */
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.2em;color:var(--brand);
  text-transform:uppercase;margin-bottom:16px;
}
.eyebrow.on-dark{color:var(--brand-2);}
.h2{font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.28;}
.lead-text{margin-top:16px;color:var(--ink-soft);font-size:16px;max-width:720px;}
.section-head{display:flex;flex-direction:column;gap:8px;margin-bottom:44px;}
@media(min-width:1024px){
  .section-head.row{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:40px;}
}

/* ---------- 编号服务列表 ---------- */
.svc-list{border-top:1px solid var(--line);}
.svc-row{
  display:grid;gap:10px;padding:28px 0;border-bottom:1px solid var(--line);
  transition:background .24s ease;
}
.svc-row:hover{background:rgba(15,76,58,.03);}
.svc-no{
  font-family:Inter,system-ui,sans-serif;font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--accent);
}
.svc-title{font-size:1.15rem;font-weight:700;}
.svc-desc{color:var(--ink-soft);font-size:15px;margin-top:6px;}
.svc-tag{
  display:inline-block;font-size:12px;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:2px 8px;color:var(--ink-soft);margin-top:14px;
}
@media(min-width:1024px){
  .svc-row{grid-template-columns:90px 300px 1fr;align-items:start;gap:32px;padding:34px 0;}
  .svc-no{padding-top:6px;}
  .svc-desc{margin-top:0;}
}

/* ---------- 深色数据区 ---------- */
.stats{
  background:var(--ink);color:#fff;position:relative;overflow:hidden;
}
.stats::before{
  content:"";position:absolute;left:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(43,214,154,.16);
}
.stats-grid{
  position:relative;display:grid;gap:32px;
}
@media(min-width:768px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:40px;}
}
@media(min-width:1024px){
  .stats-grid{grid-template-columns:repeat(4,1fr);gap:0;}
  .stat-item{padding:0 32px;border-right:1px solid rgba(255,255,255,.12);}
  .stat-item:first-child{padding-left:0;}
  .stat-item:last-child{border-right:0;padding-right:0;}
}
.stat-num{font-family:Inter,system-ui,sans-serif;font-size:clamp(2rem,4vw,3rem);font-weight:700;letter-spacing:-0.03em;color:#fff;}
.stat-num em{font-style:normal;font-size:1rem;color:var(--brand-2);margin-left:6px;letter-spacing:0;}
.stat-label{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.72);}
.stat-note{margin-top:6px;font-size:12.5px;color:rgba(255,255,255,.42);}

/* ---------- 案例错位卡 ---------- */
.case-grid{display:grid;gap:32px;}
@media(min-width:768px){.case-grid{grid-template-columns:repeat(2,1fr);gap:32px;}}
.case-card{position:relative;}
.case-card.offset{margin-top:0;}
@media(min-width:1024px){.case-card.offset{margin-top:64px;}}
.case-thumb{
  position:relative;overflow:hidden;border-radius:var(--r-md);background:#E9E7DE;aspect-ratio:4/3;
  box-shadow:var(--shadow-1);transition:box-shadow .28s ease;
}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.22,1,.36,1);}
.case-card:hover .case-thumb{box-shadow:var(--shadow-2);}
.case-card:hover .case-thumb img{transform:scale(1.03);}
.case-label{
  position:absolute;top:14px;left:14px;font-size:12px;letter-spacing:.08em;
  color:#fff;border-left:2px solid var(--brand-2);padding:2px 8px;background:rgba(17,21,18,.42);border-radius:var(--r-sm);
}
.case-body{padding-top:20px;}
.case-body h3{font-size:1.25rem;line-height:1.4;}
.case-body p{margin-top:10px;color:var(--ink-soft);font-size:15px;}

/* ---------- 阶梯方案 ---------- */
.plans{display:grid;gap:20px;}
@media(min-width:1024px){.plans{grid-template-columns:repeat(3,1fr);gap:0;align-items:stretch;}}
.plan{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:32px 26px;display:flex;flex-direction:column;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.plan:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--ink);}
@media(min-width:1024px){
  .plan{border-radius:0;border-right:0;}
  .plan:first-child{border-radius:var(--r-md) 0 0 var(--r-md);}
  .plan:last-child{border-right:1px solid var(--line);border-radius:0 var(--r-md) var(--r-md) 0;}
}
.plan.featured{
  background:var(--ink);color:#fff;border-color:var(--ink);
}
@media(min-width:1024px){.plan.featured{margin:-18px 0;padding:50px 30px;border-radius:var(--r-md);z-index:2;}}
.plan-name{font-size:13px;letter-spacing:.16em;color:var(--accent);}
.plan.featured .plan-name{color:var(--brand-2);}
.plan-title{font-size:1.3rem;margin-top:12px;}
.plan-price{
  margin-top:20px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  font-size:14px;color:var(--ink-soft);
}
.plan.featured .plan-price{border-color:rgba(255,255,255,.16);color:rgba(255,255,255,.7);}
.plan ul{margin-top:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.plan li{font-size:14.5px;color:var(--ink-soft);padding-left:18px;position:relative;}
.plan li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:1px;background:var(--brand);}
.plan.featured li{color:rgba(255,255,255,.78);}
.plan.featured li::before{background:var(--brand-2);}
.plan .btn{margin-top:28px;width:100%;}

/* ---------- 资讯列表（CMS） ---------- */
.news-grid{display:grid;gap:32px;}
@media(min-width:1024px){.news-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:44px;}}
.lead-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.lead-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--ink);}
.lead-thumb{overflow:hidden;aspect-ratio:16/9;background:#E9E7DE;}
.lead-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.22,1,.36,1);}
.lead-card:hover .lead-thumb img{transform:scale(1.03);}
.lead-body{padding:24px 26px 28px;}
.meta-row{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--ink-soft);}
.tag{
  display:inline-block;font-size:12px;line-height:1.5;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:2px 8px;color:var(--ink-soft);
}
.tag.accent{border-color:rgba(233,102,61,.45);color:var(--accent);}
.lead-body h3{font-size:1.3rem;line-height:1.45;margin-top:14px;}
.lead-body h3 a:hover{color:var(--brand);}
.lead-body p{margin-top:12px;color:var(--ink-soft);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.side-list{border-top:1px solid var(--line);}
.side-item{
  display:block;padding:18px 0;border-bottom:1px solid var(--line);
  transition:background .2s ease,padding-left .24s ease;
}
.side-item:hover{background:rgba(15,76,58,.03);padding-left:10px;}
.side-item h4{
  font-size:15.5px;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.side-item:hover h4{color:var(--brand);}
.side-item .meta-row{margin-top:8px;}
.empty-box{
  border:1px dashed var(--line);border-radius:var(--r-md);padding:48px 24px;text-align:center;background:var(--card);
}
.empty-box p{color:var(--ink-soft);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:flex-start;gap:20px;padding:24px 0;
}
.faq-no{font-family:Inter,system-ui,sans-serif;font-size:13px;color:var(--accent);padding-top:5px;letter-spacing:.08em;flex:none;}
.faq-q span.q-text{font-size:1.05rem;font-weight:600;line-height:1.6;flex:1;}
.faq-icon{
  flex:none;width:22px;height:22px;position:relative;margin-top:4px;transition:transform .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);left:50%;top:50%;
}
.faq-icon::before{width:13px;height:1.5px;transform:translate(-50%,-50%);}
.faq-icon::after{width:1.5px;height:13px;transform:translate(-50%,-50%);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a p{padding:0 0 26px 33px;color:var(--ink-soft);font-size:16px;line-height:1.8;}

/* ---------- 联系 ---------- */
.contact{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.contact-grid{display:grid;gap:40px;}
@media(min-width:1024px){.contact-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:72px;}}
.contact h2{font-size:clamp(1.6rem,3vw,2.3rem);line-height:1.3;}
.contact p{margin-top:18px;color:var(--ink-soft);max-width:460px;}
.contact-points{margin-top:30px;display:flex;flex-direction:column;gap:14px;}
.contact-points li{font-size:14.5px;color:var(--ink-soft);padding-left:16px;position:relative;}
.contact-points li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--brand-2);}
.field{margin-bottom:26px;}
.field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:8px;letter-spacing:.02em;}
.field input,.field textarea,.field select{
  width:100%;border:0;border-bottom:1px solid var(--line);background:transparent;
  padding:10px 2px;font-size:15px;transition:border-color .2s ease;border-radius:0;
}
.field textarea{resize:vertical;min-height:96px;line-height:1.7;}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-bottom-color:var(--brand);box-shadow:0 1px 0 0 var(--brand);}
.form-row{display:grid;gap:0 24px;}
@media(min-width:640px){.form-row.two{grid-template-columns:repeat(2,1fr);}}
.form-note{font-size:12.5px;color:var(--ink-soft);margin-top:-10px;margin-bottom:24px;}
.form-msg{
  display:none;border-left:2px solid var(--brand-2);background:rgba(43,214,154,.08);
  padding:10px 14px;font-size:14px;margin-bottom:22px;border-radius:var(--r-sm);
}
.form-msg.is-error{border-left-color:var(--accent);background:rgba(233,102,61,.08);}
.form-msg.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding-top:72px;}
.footer-grid{display:grid;gap:36px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{display:flex;align-items:baseline;gap:6px;font-size:20px;font-weight:700;color:#fff;}
.footer-brand span{font-size:11px;letter-spacing:.18em;opacity:.7;font-weight:500;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;max-width:320px;color:rgba(255,255,255,.58);}
.footer-title{font-size:13px;letter-spacing:.14em;color:#fff;margin-bottom:18px;}
.footer-links li{margin-bottom:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s ease;}
.footer-links a:hover{color:var(--brand-2);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.62);margin-bottom:12px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.45);
}
.to-top{font-size:13px;color:rgba(255,255,255,.6);display:inline-flex;align-items:center;gap:6px;transition:color .2s ease;}
.to-top:hover{color:var(--brand-2);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s cubic-bezier(.22,1,.36,1),transform .48s cubic-bezier(.22,1,.36,1);}
.reveal.is-visible{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink:#111512;
  --ink-soft:#4A524C;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --line:#E4E2D9;
  --brand:#0F4C3A;
  --brand-2:#2BD69A;
  --accent:#E9663D;
  --r-sm:2px;
  --r-md:4px;
  --r-lg:8px;
  --shadow-1:0 1px 2px rgba(17,21,18,.04);
  --shadow-2:0 12px 32px rgba(17,21,18,.08);
  --font-cn:"PingFang SC","HarmonyOS Sans","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-num:Inter,"PingFang SC",system-ui,-apple-system,sans-serif;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.02em;line-height:1.25}
p{margin:0}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,241,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled{
  background:rgba(247,246,241,.96);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{font-size:20px;font-weight:700;letter-spacing:-0.01em;color:var(--ink);white-space:nowrap}
.brand span{font-size:12px;font-weight:500;letter-spacing:.1em;color:var(--ink-soft);margin-left:6px}
.nav-desktop{display:none;align-items:center;gap:30px}
@media(min-width:1024px){.nav-desktop{display:flex}}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-soft);
  padding:6px 0;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .24s cubic-bezier(.22,1,.36,1);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active::before{
  content:"";position:absolute;left:-11px;top:50%;width:4px;height:4px;
  border-radius:50%;background:var(--accent);transform:translateY(-50%);
}
.header-cta{
  display:none;font-size:14px;padding:9px 18px;border:1px solid var(--line);
  border-radius:var(--r-md);color:var(--ink);white-space:nowrap;
  transition:border-color .24s ease,background .24s ease,color .24s ease;
}
.header-cta:hover{border-color:var(--ink);background:var(--ink);color:#fff}
@media(min-width:640px){.header-cta{display:inline-flex;align-items:center;min-height:44px}}
.menu-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;align-items:center;border-radius:var(--r-md);
}
.menu-toggle i{display:block;width:20px;height:1.5px;background:var(--ink);transition:transform .24s ease,opacity .24s ease}
.menu-toggle.is-open i:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.menu-toggle.is-open i:nth-child(2){opacity:0}
.menu-toggle.is-open i:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
@media(min-width:1024px){.menu-toggle{display:none}}
.mobile-panel{
  position:fixed;inset:0;z-index:70;background:var(--paper);
  display:flex;flex-direction:column;padding:20px 24px 32px;
  transform:translateX(100%);transition:transform .32s cubic-bezier(.22,1,.36,1);
  overflow-y:auto;
}
.mobile-panel.is-open{transform:translateX(0)}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;height:52px;margin-bottom:18px}
.mobile-close{width:44px;height:44px;font-size:26px;line-height:1;color:var(--ink)}
.mobile-nav a{
  display:block;font-size:22px;padding:18px 0;border-bottom:1px solid var(--line);
  color:var(--ink);font-weight:600;
}
.mobile-nav a.is-active{color:var(--brand)}
.mobile-nav a.is-active::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-right:10px;vertical-align:middle}
.mobile-panel-foot{margin-top:auto;padding-top:28px;font-size:13px;color:var(--ink-soft)}

/* ============ ARTICLE HERO ============ */
.article-hero{
  position:relative;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;
  background-position:center;
  padding:56px 0 60px;
  color:#fff;
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(17,21,18,.78),rgba(17,21,18,.62));
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.68);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:22px}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:rgba(255,255,255,.92);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;line-height:1;padding:6px 10px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  color:var(--ink-soft);background:transparent;white-space:nowrap;
}
.tag-accent{border-color:rgba(233,102,61,.55);color:var(--accent)}
.tag-light{border-color:rgba(255,255,255,.35);color:rgba(255,255,255,.9)}
.article-hero h1{
  margin:18px 0 0;
  font-size:clamp(1.75rem,3.6vw,2.9rem);
  line-height:1.2;
  letter-spacing:-0.03em;
  max-width:22em;
}
.article-meta{
  margin-top:22px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.18);
  display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:13px;color:rgba(255,255,255,.75);
  font-family:var(--font-num);
}
.article-meta b{font-weight:500;color:rgba(255,255,255,.95)}

/* ============ ARTICLE BODY ============ */
.article-main{padding:56px 0 24px}
@media(min-width:768px){.article-main{padding:72px 0 32px}}
.article-shell{max-width:748px;margin:0 auto}
.article-body{font-size:17px;line-height:1.9;color:var(--ink)}
.article-body > * + *{margin-top:1.2em}
.article-body p{color:#20261f}
.article-body h2{
  position:relative;font-size:1.45rem;line-height:1.4;padding-left:18px;
  margin-top:2.2em;letter-spacing:-0.02em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.55em;width:8px;height:8px;border-radius:50%;
  background:var(--brand-2);
}
.article-body h3{font-size:18px;line-height:1.5;margin-top:1.8em}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(15,76,58,.35)}
.article-body a:hover{border-bottom-color:var(--brand)}
.article-body ul,.article-body ol{padding-left:22px;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li + li{margin-top:.5em}
.article-body blockquote{
  margin:1.6em 0;padding:6px 0 6px 20px;
  border-left:2px solid var(--brand);color:var(--ink-soft);
  font-size:16.5px;
}
.article-body img{border-radius:var(--r-md);width:100%;margin:1.6em 0;background:var(--line)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--ink-soft);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px}
.article-body th,.article-body td{padding:12px 8px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{font-size:13px;color:var(--ink-soft);font-weight:600}
.article-body code{background:#EDEBE3;padding:2px 6px;border-radius:var(--r-sm);font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-md);
  background:var(--card);padding:56px 24px;text-align:center;
}
.empty-state .empty-title{font-size:20px;font-weight:700;margin-bottom:10px}
.empty-state p{color:var(--ink-soft);font-size:15px;margin-bottom:22px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 26px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;position:relative;overflow:hidden;
  transition:background .24s ease,color .24s ease,border-color .24s ease,transform .24s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand-2);transform:scaleX(0);transform-origin:left;
  transition:transform .24s cubic-bezier(.22,1,.36,1);
}
.btn-primary:hover{background:var(--ink)}
.btn-primary:hover::after{transform:scaleX(1)}
.btn-ghost{border:1px solid var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--ink);background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--brand-2);color:var(--ink)}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  color:var(--brand);position:relative;
}
.link-arrow::after{content:"→";transition:transform .24s ease}
.link-arrow:hover::after{transform:translateX(4px)}

.article-foot{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* ============ SECTION BASE ============ */
.section{padding:60px 0}
@media(min-width:768px){.section{padding:80px 0}}
@media(min-width:1024px){.section{padding:104px 0}}
.section-head{margin-bottom:36px}
.section-kicker{
  font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);font-weight:600;font-family:var(--font-num);
}
.section-title{font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.25;margin-top:12px;letter-spacing:-0.03em}
.section-sub{margin-top:12px;color:var(--ink-soft);font-size:15.5px;max-width:62ch}

/* ============ RELATED CARDS ============ */
.card-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--ink);box-shadow:var(--shadow-2)}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:#EDEBE3}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.22,1,.36,1)}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .card-tag{
  position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);
  border-color:transparent;
}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:17px;line-height:1.45;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14.5px;color:var(--ink-soft);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-soft);font-family:var(--font-num);
}
.card-meta .arrow{transition:transform .24s ease}
.card:hover .card-meta .arrow{transform:translateX(4px);color:var(--brand)}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:18px;
  padding:22px 0;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-num{font-family:var(--font-num);font-size:13px;color:var(--accent);padding-top:4px;min-width:26px}
.faq-q{font-size:16.5px;font-weight:600;flex:1;line-height:1.6}
.faq-icon{
  font-size:20px;line-height:1;color:var(--brand);transition:transform .24s ease;
  padding-top:2px;
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item[open] .faq-q{color:var(--brand)}
.faq-a{padding:0 0 24px 44px;color:var(--ink-soft);font-size:16px;line-height:1.8;max-width:70ch}

/* ============ CTA ============ */
.cta-block{
  position:relative;color:#fff;overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-radius:var(--r-lg);
}
.cta-block::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(17,21,18,.92),rgba(15,76,58,.78));
}
.cta-inner{position:relative;z-index:2;padding:44px 24px;display:grid;gap:34px}
@media(min-width:768px){.cta-inner{padding:56px 40px}}
@media(min-width:1024px){.cta-inner{grid-template-columns:1fr 1fr;gap:56px;padding:64px 56px;align-items:start}}
.cta-inner h2{font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.3;letter-spacing:-0.02em}
.cta-inner p{margin-top:14px;color:rgba(255,255,255,.76);font-size:15.5px;max-width:46ch}
.cta-points{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.cta-points span{
  font-size:12.5px;padding:6px 10px;border:1px solid rgba(255,255,255,.28);
  border-radius:var(--r-sm);color:rgba(255,255,255,.86);
}
.form-grid{display:grid;gap:22px}
@media(min-width:640px){.form-grid{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;color:rgba(255,255,255,.72)}
.field input,.field textarea{
  width:100%;background:transparent;border:0;border-bottom:1px solid rgba(255,255,255,.3);
  padding:10px 0;font-size:15px;color:#fff;border-radius:0;
  transition:border-color .24s ease;
}
.field textarea{resize:vertical;min-height:76px}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.42)}
.field input:focus,.field textarea:focus{outline:none;border-bottom-color:var(--brand-2)}
.form-note{font-size:12.5px;color:rgba(255,255,255,.6);margin-top:16px}
.form-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ============ FOOTER ============ */
.site-footer{background:var(--ink);color:#fff;padding:64px 0 0;margin-top:8px}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{font-size:20px;font-weight:700;color:#fff}
.footer-brand span{font-size:12px;font-weight:500;letter-spacing:.1em;color:rgba(255,255,255,.6);margin-left:6px}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:38ch}
.footer-title{font-size:13px;letter-spacing:.12em;color:rgba(255,255,255,.5);margin-bottom:16px}
.footer-links li + li,.footer-contact li + li{margin-top:12px}
.footer-links a,.footer-contact li{
  font-size:14.5px;color:rgba(255,255,255,.78);transition:color .2s ease;
}
.footer-links a:hover{color:var(--brand-2)}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);font-family:var(--font-num);
}
.to-top{color:rgba(255,255,255,.72);font-family:var(--font-cn)}
.to-top:hover{color:var(--brand-2)}

/* ============ MOTION ============ */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-visible{
  opacity:1;transform:none;
  transition:opacity .48s cubic-bezier(.22,1,.36,1),transform .48s cubic-bezier(.22,1,.36,1);
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ink:#111512;
  --ink-soft:#4A524C;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --line:#E4E2D9;
  --brand:#0F4C3A;
  --brand-2:#2BD69A;
  --accent:#E9663D;
  --r-sm:2px;
  --r-md:4px;
  --r-lg:8px;
  --shadow-1:0 1px 2px rgba(17,21,18,.04);
  --shadow-2:0 12px 32px rgba(17,21,18,.08);
  --container:1240px;
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:var(--brand-2);color:var(--ink)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:640px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}
:focus-visible{outline:1px solid var(--brand);outline-offset:3px}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;height:72px;
  display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.site-header.is-scrolled{
  background:rgba(247,246,241,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{
  display:inline-flex;align-items:baseline;gap:6px;
  font-size:20px;font-weight:700;letter-spacing:-.02em;color:#fff;
  transition:color .28s ease;white-space:nowrap;
}
.brand span{font-size:11px;font-weight:400;letter-spacing:.14em;opacity:.7}
.site-header.is-scrolled .brand{color:var(--ink)}
.nav-desktop{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;font-size:14px;padding:6px 0;color:rgba(255,255,255,.84);
  transition:color .24s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:var(--brand-2);transition:width .28s var(--ease);
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{width:100%}
.nav-link.is-active::before{
  content:"";position:absolute;left:-11px;top:50%;transform:translateY(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--accent);
}
.header-cta{
  font-size:14px;color:#fff;border:1px solid rgba(255,255,255,.42);border-radius:var(--r-md);
  padding:9px 18px;transition:background .24s ease,color .24s ease,border-color .24s ease;white-space:nowrap;
}
.header-cta:hover{background:#fff;color:var(--ink);border-color:#fff}
.site-header.is-scrolled .nav-link{color:var(--ink-soft)}
.site-header.is-scrolled .nav-link:hover,
.site-header.is-scrolled .nav-link.is-active{color:var(--ink)}
.site-header.is-scrolled .header-cta{color:var(--ink);border-color:var(--line);background:transparent}
.site-header.is-scrolled .header-cta:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.menu-toggle{display:none;width:44px;height:44px;background:none;border:0;padding:10px;cursor:pointer}
.menu-toggle i{display:block;height:1px;width:22px;background:#fff;margin:5px auto;transition:background .28s ease,transform .28s ease,opacity .2s ease}
.site-header.is-scrolled .menu-toggle i{background:var(--ink)}
@media (max-width:1023px){
  .menu-toggle{display:block}
  .nav-desktop{
    position:fixed;inset:0;z-index:90;
    flex-direction:column;align-items:flex-start;justify-content:center;gap:0;
    padding:96px 32px 40px;background:var(--paper);
    border-left:1px solid var(--line);
    transform:translateX(101%);transition:transform .34s var(--ease);
  }
  .nav-open .nav-desktop{transform:translateX(0)}
  .nav-link{
    width:100%;font-size:22px;color:var(--ink);padding:20px 0;border-bottom:1px solid var(--line);
  }
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--brand)}
  .nav-link.is-active::before{left:0;top:50%;width:6px;height:6px}
  .nav-link.is-active{padding-left:16px}
  .header-cta{display:none}
  .nav-open .menu-toggle{position:fixed;top:14px;right:calc(50% - 50vw + 20px);z-index:95}
  .nav-open .menu-toggle i{background:var(--ink)}
  .nav-open .menu-toggle i:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .nav-open .menu-toggle i:nth-child(2){opacity:0}
  .nav-open .menu-toggle i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
}
@media (min-width:1024px){
  .nav-link.is-active::after{background:var(--brand-2)}
}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:150px 0 60px;
  min-height:560px;
  display:flex;align-items:flex-end;
  background-image:linear-gradient(96deg,rgba(17,21,18,.9) 0%,rgba(17,21,18,.72) 46%,rgba(15,76,58,.62) 100%),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  color:#fff;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;right:6%;bottom:12%;width:180px;height:180px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);pointer-events:none;
}
.page-hero::before{
  content:"";position:absolute;right:calc(6% + 55px);bottom:calc(12% + 55px);width:70px;height:70px;border-radius:50%;
  border:1px solid rgba(43,214,154,.35);pointer-events:none;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:22px;position:relative;z-index:2}
.breadcrumb a{transition:color .24s ease}
.breadcrumb a:hover{color:var(--brand-2)}
.breadcrumb span.sep{color:rgba(255,255,255,.34)}
.hero-title{
  position:relative;z-index:2;
  font-size:clamp(2rem,5.2vw,3.6rem);font-weight:700;letter-spacing:-.03em;line-height:1.14;
  max-width:820px;
}
.hero-title em{font-style:normal;color:var(--brand-2)}
.hero-sub{
  position:relative;z-index:2;margin-top:20px;max-width:660px;
  font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);
}
.hero-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:24px;margin-top:34px}
.btn-primary{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--brand);color:#fff;font-size:15px;font-weight:500;
  padding:14px 28px;border-radius:var(--r-md);border:1px solid var(--brand);
  position:relative;overflow:hidden;transition:background .24s ease,border-color .24s ease,transform .24s ease;
}
.btn-primary::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand-2);
  transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);
}
.btn-primary:hover{background:var(--ink);border-color:var(--ink)}
.btn-primary:hover::after{transform:scaleX(1)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  font-size:15px;color:#fff;border:1px solid rgba(255,255,255,.4);border-radius:var(--r-md);
  padding:14px 26px;transition:background .24s ease,color .24s ease,border-color .24s ease;
}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.link-underline{
  position:relative;font-size:15px;color:#fff;padding-bottom:4px;
}
.link-underline::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:linear-gradient(90deg,var(--brand-2),rgba(43,214,154,0));transform-origin:left;
  transition:transform .3s var(--ease);
}
.link-underline:hover::after{transform:scaleX(1.1)}
.hero-trust{
  position:relative;z-index:2;margin-top:48px;display:grid;gap:0;
  grid-template-columns:1fr;border-top:1px solid rgba(255,255,255,.18);
}
.hero-trust li{
  padding:16px 0;font-size:13px;color:rgba(255,255,255,.72);line-height:1.6;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.hero-trust li b{display:block;font-size:14px;font-weight:600;color:#fff;letter-spacing:.01em}
@media (min-width:640px){
  .hero-trust{grid-template-columns:repeat(3,1fr)}
  .hero-trust li{border-bottom:0;border-left:1px solid rgba(255,255,255,.16);padding:6px 20px}
  .hero-trust li:first-child{border-left:0;padding-left:0}
}

/* ---------- section basics ---------- */
.section{padding:60px 0}
@media (min-width:768px){.section{padding:80px 0}}
@media (min-width:1024px){.section{padding:104px 0}}
.section-tight{padding:40px 0}
@media (min-width:1024px){.section-tight{padding:56px 0}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.section-title{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;letter-spacing:-.02em;line-height:1.28}
.section-desc{max-width:560px;font-size:15px;color:var(--ink-soft);line-height:1.8}
@media (min-width:1024px){.section-head{margin-bottom:52px}}

/* ---------- quick bar ---------- */
.quickbar{
  background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.quickbar-grid{display:grid;grid-template-columns:1fr;gap:0}
.quickbar-item{
  display:flex;gap:14px;padding:22px 0;border-bottom:1px solid var(--line);
}
.quickbar-item:last-child{border-bottom:0}
.quickbar-item .tag{
  flex:0 0 auto;font-size:12px;color:var(--accent);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:2px 8px;height:fit-content;margin-top:3px;letter-spacing:.04em;
}
.quickbar-item p{font-size:14px;color:var(--ink-soft);line-height:1.75}
.quickbar-item p b{color:var(--ink);font-weight:600}
@media (min-width:768px){
  .quickbar-grid{grid-template-columns:repeat(3,1fr)}
  .quickbar-item{border-bottom:0;border-left:1px solid var(--line);padding:26px 24px}
  .quickbar-item:first-child{border-left:0;padding-left:0}
}

/* ---------- layout ---------- */
.cat-layout{display:grid;grid-template-columns:1fr;gap:44px;align-items:start}
@media (min-width:1280px){
  .cat-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px}
}

/* ---------- feature rows ---------- */
.feature-list{border-top:1px solid var(--line)}
.feature-row{
  display:grid;grid-template-columns:1fr;gap:22px;
  padding:38px 0;border-bottom:1px solid var(--line);
}
.feature-num{
  font-family:Inter,"PingFang SC",sans-serif;
  font-size:34px;font-weight:700;line-height:1;color:var(--line);letter-spacing:-.04em;
}
.feature-body h2{
  font-size:clamp(1.2rem,2.2vw,1.5rem);font-weight:700;letter-spacing:-.01em;line-height:1.35;margin-bottom:14px;
}
.feature-body h2 .dot{
  display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);
  margin-right:10px;vertical-align:middle;transform:translateY(-2px);
}
.feature-body p{font-size:15.5px;color:var(--ink-soft);line-height:1.85;max-width:620px}
.feature-media{
  position:relative;overflow:hidden;border-radius:var(--r-md);background:#E9E7DE;
  border:1px solid var(--line);aspect-ratio:16/10;
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.feature-row:hover .feature-media img{transform:scale(1.03)}
@media (min-width:900px){
  .feature-row{grid-template-columns:84px minmax(0,1fr) 330px;gap:32px;padding:52px 0;align-items:start}
  .feature-num{font-size:44px;padding-top:2px}
  .feature-row.is-reverse{grid-template-columns:330px minmax(0,1fr) 84px}
  .feature-row.is-reverse .feature-media{order:1}
  .feature-row.is-reverse .feature-body{order:2}
  .feature-row.is-reverse .feature-num{order:3;text-align:right}
}
.tick-list{margin-top:22px;display:grid;gap:0;border-top:1px solid var(--line)}
.tick-list li{
  position:relative;padding:12px 0 12px 20px;font-size:14px;color:var(--ink-soft);
  border-bottom:1px solid var(--line);line-height:1.7;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:20px;width:8px;height:1px;background:var(--brand);
}
.tick-list li b{color:var(--ink);font-weight:600}

/* ---------- sidebar toc ---------- */
.toc{position:sticky;top:96px}
.toc-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:24px 22px;box-shadow:var(--shadow-1)}
.toc-title{font-size:12px;letter-spacing:.16em;color:var(--ink-soft);margin-bottom:16px;text-transform:uppercase}
.toc-list{display:grid;gap:2px}
.toc-list a{
  display:flex;align-items:baseline;gap:10px;font-size:14px;color:var(--ink-soft);
  padding:9px 10px;border-left:2px solid transparent;border-radius:var(--r-sm);
  transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.toc-list a i{font-style:normal;font-family:Inter,sans-serif;font-size:12px;color:var(--line)}
.toc-list a:hover{color:var(--ink);background:#FAF9F4}
.toc-list a.is-active{color:var(--brand);border-left-color:var(--brand);background:#F3F6F3}
.toc-list a.is-active i{color:var(--brand-2)}
.toc-help{
  margin-top:22px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-soft);line-height:1.8;
}
.toc-help a{color:var(--brand);border-bottom:1px solid var(--brand-2);padding-bottom:1px}
@media (max-width:1279px){
  .toc{position:static}
  .toc-card{margin-bottom:8px}
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--line)}
.step{
  padding:24px 0;border-bottom:1px solid var(--line);display:grid;gap:8px;
}
.step .idx{font-family:Inter,sans-serif;font-size:12px;color:var(--accent);letter-spacing:.14em}
.step h3{font-size:1.05rem;font-weight:600;line-height:1.5}
.step p{font-size:14px;color:var(--ink-soft);line-height:1.75}
@media (min-width:768px){
  .steps{grid-template-columns:repeat(5,1fr)}
  .step{border-bottom:0;border-left:1px solid var(--line);padding:26px 20px 8px}
  .step:first-child{border-left:0;padding-left:0}
}

/* ---------- spec table ---------- */
.spec-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.spec-table{width:100%;min-width:620px;border-collapse:collapse;font-size:14px}
.spec-table caption{
  caption-side:top;text-align:left;font-size:13px;color:var(--ink-soft);padding-bottom:14px;
}
.spec-table th,.spec-table td{
  text-align:left;padding:16px 18px 16px 0;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.7;
}
.spec-table thead th{
  font-size:13px;font-weight:500;color:var(--ink-soft);letter-spacing:.04em;
  border-bottom:1px solid var(--ink);padding-bottom:12px;
}
.spec-table tbody th{font-weight:600;color:var(--ink);width:180px}
.spec-table td{color:var(--ink-soft)}
.spec-note{margin-top:18px;font-size:13px;color:var(--ink-soft);line-height:1.7}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:flex-start;gap:16px;padding:24px 0;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
  transition:color .22s ease;
}
.faq-q .num{font-family:Inter,sans-serif;font-size:13px;color:var(--accent);padding-top:4px;flex:0 0 auto}
.faq-q .txt{flex:1}
.faq-q .plus{
  position:relative;flex:0 0 auto;width:16px;height:16px;margin-top:6px;
  transition:transform .24s var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--ink-soft);transition:background .22s ease;
}
.faq-q .plus::before{left:0;top:7.5px;width:16px;height:1px}
.faq-q .plus::after{left:7.5px;top:0;width:1px;height:16px}
.faq-item.is-open .faq-q{color:var(--brand)}
.faq-item.is-open .plus{transform:rotate(45deg)}
.faq-item.is-open .plus::before,.faq-item.is-open .plus::after{background:var(--brand)}
.faq-a{
  overflow:hidden;max-height:0;transition:max-height .28s var(--ease);
}
.faq-a p{
  padding:0 0 26px 34px;font-size:15.5px;line-height:1.85;color:var(--ink-soft);max-width:760px;
}
@media (min-width:768px){.faq-q{font-size:17px;padding:28px 0}}

/* ---------- CTA ---------- */
.cta-block{
  background:var(--ink);color:#fff;border-radius:var(--r-lg);padding:44px 26px;
}
.cta-grid{display:grid;grid-template-columns:1fr;gap:36px}
.cta-block h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:700;letter-spacing:-.02em;line-height:1.3}
.cta-block p{margin-top:16px;font-size:15px;color:rgba(255,255,255,.74);line-height:1.85;max-width:460px}
.cta-points{margin-top:28px;display:grid;gap:10px}
.cta-points li{position:relative;padding-left:18px;font-size:14px;color:rgba(255,255,255,.78)}
.cta-points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:1px;background:var(--brand-2)}
@media (min-width:900px){
  .cta-block{padding:64px 56px}
  .cta-grid{grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:56px;align-items:start}
}

/* ---------- form ---------- */
.form-row{margin-bottom:22px}
.form-row label{display:block;font-size:13px;color:rgba(255,255,255,.68);margin-bottom:8px;letter-spacing:.02em}
.form-row input,.form-row textarea{
  width:100%;background:transparent;border:0;border-bottom:1px solid rgba(255,255,255,.28);
  padding:10px 0;font-size:15px;color:#fff;transition:border-color .24s ease,box-shadow .24s ease;
}
.form-row textarea{resize:vertical;min-height:88px;line-height:1.7}
.form-row input::placeholder,.form-row textarea::placeholder{color:rgba(255,255,255,.34)}
.form-row input:focus,.form-row textarea:focus{
  outline:none;border-bottom-color:var(--brand-2);box-shadow:0 1px 0 0 var(--brand-2);
}
.form-submit{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:var(--brand-2);color:var(--ink);font-size:15px;font-weight:600;
  padding:14px 30px;border:1px solid var(--brand-2);border-radius:var(--r-md);cursor:pointer;
  transition:background .24s ease,color .24s ease,border-color .24s ease;
}
.form-submit:hover{background:#fff;border-color:#fff;color:var(--ink)}
.form-msg{
  display:none;margin-top:18px;font-size:13.5px;padding:10px 14px;border-left:2px solid var(--brand-2);
  background:rgba(43,214,154,.12);color:#DFF7EE;
}
.form-msg.is-show{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);margin-top:0;padding:60px 0 26px}
@media (min-width:1024px){.site-footer{padding:78px 0 28px}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:38px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:40px}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px}}
.footer-brand{
  display:inline-flex;align-items:baseline;gap:6px;font-size:20px;font-weight:700;color:#fff;letter-spacing:-.02em;
}
.footer-brand span{font-size:11px;font-weight:400;letter-spacing:.14em;color:rgba(255,255,255,.55)}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:420px}
.footer-title{font-size:13px;letter-spacing:.14em;color:#fff;margin-bottom:18px;text-transform:uppercase}
.footer-links li,.footer-contact li{margin-bottom:12px;font-size:14px;line-height:1.7}
.footer-links a,.footer-contact a{transition:color .22s ease}
.footer-links a:hover,.footer-contact a:hover{color:var(--brand-2)}
.footer-bottom{
  margin-top:50px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.to-top{color:rgba(255,255,255,.72);transition:color .22s ease}
.to-top:hover{color:var(--brand-2)}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .feature-media img,.btn-primary::after,.nav-link::after{transition:none}
}

/* roulang page: category2 */
:root{
  --ink:#111512;
  --ink-soft:#4A524C;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --line:#E4E2D9;
  --brand:#0F4C3A;
  --brand-2:#2BD69A;
  --accent:#E9663D;
  --r-sm:2px;
  --r-md:4px;
  --r-lg:8px;
  --shadow-1:0 1px 2px rgba(17,21,18,.04);
  --shadow-2:0 12px 32px rgba(17,21,18,.08);
  --font-cn:"PingFang SC","HarmonyOS Sans","Noto Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  --font-num:"Inter","PingFang SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  padding-top:72px;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .24s ease,border-color .24s ease,background-color .24s ease;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:var(--brand-2);color:var(--ink);}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media(min-width:640px){.container{padding-left:24px;padding-right:24px;}}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;height:72px;
  display:flex;align-items:center;
  background:rgba(247,246,241,.94);
  border-bottom:1px solid var(--line);
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.site-header.is-scrolled{
  background:rgba(247,246,241,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow-1);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;
}
.brand{
  font-family:var(--font-cn);
  font-size:20px;font-weight:700;letter-spacing:-.01em;color:var(--ink);
  display:inline-flex;align-items:baseline;gap:6px;white-space:nowrap;
}
.brand span{
  font-size:12px;font-weight:500;letter-spacing:.08em;color:var(--ink-soft);
  border-left:1px solid var(--line);padding-left:8px;
}
.brand:hover{color:var(--brand);}
.nav-desktop{display:none;align-items:center;gap:32px;}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-soft);padding:6px 0;
  transition:color .24s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:auto;bottom:-2px;height:2px;width:0;
  background:var(--brand);transition:width .24s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{width:100%;}
.nav-link.is-active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--accent);
}
.header-cta{
  display:none;font-size:14px;padding:10px 20px;border:1px solid var(--ink);
  border-radius:var(--r-md);color:var(--ink);white-space:nowrap;
  transition:background-color .24s ease,color .24s ease,border-color .24s ease;
}
.header-cta:hover{background:var(--brand);border-color:var(--brand);color:#fff;}
.menu-toggle{
  width:44px;height:44px;border:1px solid var(--line);background:transparent;
  border-radius:var(--r-md);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  cursor:pointer;transition:border-color .24s ease;
}
.menu-toggle i{display:block;width:18px;height:1.5px;background:var(--ink);transition:transform .24s ease,opacity .24s ease;}
.menu-toggle:hover{border-color:var(--ink);}
@media(min-width:1024px){
  .nav-desktop{display:flex;}
  .header-cta{display:inline-block;}
  .menu-toggle{display:none;}
}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:80;background:var(--paper);
  padding:88px 24px 40px;transform:translateX(100%);
  transition:transform .32s cubic-bezier(.22,1,.36,1);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-close{
  position:absolute;top:18px;right:20px;width:44px;height:44px;border:1px solid var(--line);
  background:transparent;border-radius:var(--r-md);font-size:20px;line-height:1;color:var(--ink);cursor:pointer;
}
.drawer-nav a{
  display:flex;justify-content:space-between;align-items:center;
  font-size:22px;font-weight:600;padding:20px 0;border-bottom:1px solid var(--line);color:var(--ink);
}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-nav a span{font-size:13px;font-weight:400;color:var(--ink-soft);}

/* ---------- 通用 ---------- */
.section{padding-top:60px;padding-bottom:60px;}
@media(min-width:768px){.section{padding-top:80px;padding-bottom:80px;}}
@media(min-width:1024px){.section{padding-top:104px;padding-bottom:104px;}}
.section-head{max-width:720px;margin-bottom:40px;}
@media(min-width:1024px){.section-head{margin-bottom:56px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand);font-family:var(--font-num);margin-bottom:16px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--brand-2);display:block;}
.section-title{
  font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.25;font-weight:700;
  letter-spacing:-.02em;color:var(--ink);
}
.section-desc{margin-top:16px;font-size:16px;line-height:1.8;color:var(--ink-soft);}
.hairline{height:1px;background:var(--line);border:0;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 28px;border-radius:var(--r-md);font-size:15px;font-weight:600;
  cursor:pointer;position:relative;overflow:hidden;
  transition:background-color .24s ease,color .24s ease,border-color .24s ease,transform .24s ease;
}
.btn-primary{background:var(--brand);color:#fff;border:1px solid var(--brand);}
.btn-primary::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand-2);
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.btn-primary:hover{background:var(--ink);border-color:var(--ink);}
.btn-primary:hover::after{transform:scaleX(1);}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--ink);background:rgba(255,255,255,.6);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--ink);position:relative;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--brand);
  transition:width .24s ease;
}
.link-arrow:hover{color:var(--brand);}
.link-arrow:hover::after{width:100%;}

.tag{
  display:inline-block;font-size:12px;line-height:1.6;padding:2px 8px;
  border:1px solid var(--line);border-radius:var(--r-sm);color:var(--ink-soft);
  background:transparent;white-space:nowrap;
}
.tag-accent{border-color:rgba(233,102,61,.45);color:var(--accent);}

.reveal{opacity:0;transform:translateY(12px);}
.reveal.is-in{
  opacity:1;transform:none;
  transition:opacity .48s cubic-bezier(.22,1,.36,1),transform .48s cubic-bezier(.22,1,.36,1);
}

/* ---------- 内页 hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  padding:64px 0 72px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(17,21,18,.86),rgba(17,21,18,.72));
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.66);margin-bottom:24px;
}
.breadcrumb a{color:rgba(255,255,255,.72);}
.breadcrumb a:hover{color:var(--brand-2);}
.breadcrumb .sep{opacity:.5;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;
  color:var(--brand-2);border:1px solid rgba(43,214,154,.5);border-radius:var(--r-sm);
  padding:5px 10px;font-family:var(--font-num);margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(2.1rem,5vw,3.4rem);
  line-height:1.16;font-weight:700;letter-spacing:-.03em;
  color:#fff;max-width:860px;
}
.page-hero h1 em{font-style:normal;color:var(--brand-2);}
.hero-sub{
  margin-top:22px;max-width:640px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:34px;}
.page-hero .btn-primary{background:var(--brand-2);border-color:var(--brand-2);color:var(--ink);}
.page-hero .btn-primary:hover{background:#fff;border-color:#fff;color:var(--ink);}
.page-hero .link-arrow{color:#fff;}
.page-hero .link-arrow:hover{color:var(--brand-2);}
.page-hero .link-arrow::after{background:var(--brand-2);}
.trust-row{
  margin-top:52px;display:grid;gap:0;
  border-top:1px solid rgba(255,255,255,.18);
}
.trust-item{
  padding:18px 0;border-bottom:1px solid rgba(255,255,255,.18);
  font-size:14px;color:rgba(255,255,255,.78);display:flex;align-items:center;gap:10px;
}
.trust-item b{color:#fff;font-family:var(--font-num);font-weight:600;font-size:13px;}
@media(min-width:768px){
  .page-hero{padding:88px 0 96px;}
  .trust-row{grid-template-columns:repeat(3,1fr);gap:0 32px;border-bottom:1px solid rgba(255,255,255,.18);}
  .trust-item{border-bottom:0;padding:20px 0 0;}
}

/* ---------- 筛选标签 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  padding:18px 0 22px;border-bottom:1px solid var(--line);
}
.filter-label{font-size:13px;color:var(--ink-soft);margin-right:6px;}
.filter-tag{
  display:inline-block;font-size:13px;padding:6px 14px;border:1px solid var(--line);
  border-radius:var(--r-sm);color:var(--ink-soft);background:var(--card);white-space:nowrap;
}
.filter-tag.is-active{border-color:var(--brand);color:var(--brand);background:rgba(43,214,154,.10);font-weight:600;}

/* ---------- 双列卡片网格 ---------- */
.card-grid{
  display:grid;grid-template-columns:1fr;gap:20px;
  margin-top:40px;
}
@media(min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr);gap:24px;}}
.svc-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.svc-card:hover{transform:translateY(-2px);border-color:var(--ink);box-shadow:var(--shadow-2);}
.svc-thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDEBE3;
}
.svc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.22,1,.36,1);}
.svc-card:hover .svc-thumb img{transform:scale(1.03);}
.svc-index{
  position:absolute;left:12px;top:10px;font-family:var(--font-num);font-size:12px;
  letter-spacing:.1em;color:#fff;background:rgba(17,21,18,.62);padding:2px 8px;border-radius:var(--r-sm);
}
.svc-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1;}
.svc-title{font-size:19px;font-weight:700;line-height:1.4;letter-spacing:-.01em;}
.svc-text{
  margin-top:10px;font-size:15px;line-height:1.75;color:var(--ink-soft);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.svc-foot{
  margin-top:20px;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.svc-foot .link-arrow{font-size:14px;}

/* ---------- 流程 ---------- */
.process{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.step-list{margin-top:8px;border-top:1px solid var(--line);}
.step-item{
  display:grid;grid-template-columns:56px 1fr;gap:16px;padding:28px 0;
  border-bottom:1px solid var(--line);
  transition:background-color .24s ease;
}
.step-item:hover{background:rgba(43,214,154,.06);}
.step-num{
  font-family:var(--font-num);font-size:26px;font-weight:600;color:var(--line);
  line-height:1.1;letter-spacing:-.02em;
}
.step-title{font-size:17px;font-weight:700;}
.step-text{margin-top:8px;font-size:15px;line-height:1.8;color:var(--ink-soft);max-width:760px;}
@media(min-width:768px){
  .step-item{grid-template-columns:88px 1fr;gap:24px;padding:34px 0;}
  .step-num{font-size:34px;}
}

/* ---------- 数据区 ---------- */
.stats-band{background:var(--ink);color:#fff;padding:64px 0;}
@media(min-width:1024px){.stats-band{padding:88px 0;}}
.stats-band .section-title{color:#fff;}
.stats-band .section-desc{color:rgba(255,255,255,.66);}
.stats-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:0;
  border-top:1px solid rgba(255,255,255,.16);
}
.stat-cell{
  padding:28px 0;border-bottom:1px solid rgba(255,255,255,.16);
}
.stat-cell:nth-child(odd){padding-right:20px;}
@media(min-width:1024px){
  .stats-grid{grid-template-columns:repeat(4,1fr);border-bottom:1px solid rgba(255,255,255,.16);}
  .stat-cell{
    padding:34px 24px;
    border-bottom:0;border-right:1px solid rgba(255,255,255,.16);
  }
  .stat-cell:first-child{padding-left:0;}
  .stat-cell:last-child{border-right:0;}
}
.stat-num{
  font-family:var(--font-num);font-size:clamp(2.2rem,4.4vw,3.2rem);font-weight:700;
  letter-spacing:-.03em;color:var(--brand-2);line-height:1.05;
}
.stat-num small{font-size:16px;font-weight:500;color:rgba(255,255,255,.72);margin-left:4px;}
.stat-label{margin-top:14px;font-size:15px;font-weight:600;color:#fff;}
.stat-desc{margin-top:6px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.6);}

/* ---------- 适用场景 ---------- */
.scene-list{border-top:1px solid var(--line);margin-top:8px;}
.scene-row{
  display:grid;grid-template-columns:1fr;gap:10px;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background-color .24s ease;
}
.scene-row:hover{background:rgba(255,255,255,.7);}
.scene-title{font-size:17px;font-weight:700;display:flex;align-items:baseline;gap:12px;}
.scene-title span{font-family:var(--font-num);font-size:13px;color:var(--accent);font-weight:600;}
.scene-text{font-size:15px;line-height:1.8;color:var(--ink-soft);}
@media(min-width:1024px){
  .scene-row{grid-template-columns:320px 1fr;gap:40px;padding:32px 0;align-items:start;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:18px;
  padding:24px 0;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-num{font-family:var(--font-num);font-size:13px;color:var(--accent);font-weight:600;padding-top:6px;flex:none;}
.faq-q{flex:1;font-size:17px;font-weight:600;line-height:1.6;color:var(--ink);}
.faq-icon{
  position:relative;width:14px;height:14px;flex:none;margin-top:8px;
  transition:transform .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink-soft);
}
.faq-icon::before{left:0;top:6px;width:14px;height:1.5px;}
.faq-icon::after{left:6px;top:0;width:1.5px;height:14px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-a{
  padding:0 0 26px 31px;font-size:16px;line-height:1.8;color:var(--ink-soft);max-width:760px;
}
@media(min-width:640px){.faq-a{padding-left:31px;}}

/* ---------- CTA / 表单 ---------- */
.cta-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);padding:32px 24px;
  display:grid;gap:36px;
}
@media(min-width:768px){.cta-panel{padding:48px 44px;}}
@media(min-width:1024px){.cta-panel{grid-template-columns:1fr 1.05fr;gap:64px;padding:56px 56px;}}
.cta-brandline{font-size:22px;font-weight:700;line-height:1.45;letter-spacing:-.01em;max-width:360px;}
.cta-note{margin-top:14px;font-size:15px;line-height:1.8;color:var(--ink-soft);}
.cta-points{margin-top:26px;border-top:1px solid var(--line);}
.cta-points li{
  padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-soft);
  display:flex;gap:10px;align-items:flex-start;
}
.cta-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-2);margin-top:9px;flex:none;}
.form-row{display:grid;gap:22px;}
@media(min-width:640px){.form-row.two{grid-template-columns:1fr 1fr;}}
.form-field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:8px;}
.form-field input,.form-field textarea,.form-field select{
  width:100%;border:0;border-bottom:1px solid var(--line);background:transparent;
  padding:10px 0;font-size:15px;color:var(--ink);border-radius:0;
  transition:border-color .24s ease;
}
.form-field textarea{resize:vertical;min-height:96px;line-height:1.7;}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{
  outline:none;border-bottom:2px solid var(--brand);padding-bottom:9px;
}
.form-field input::placeholder,.form-field textarea::placeholder{color:#9AA19B;}
.form-actions{margin-top:28px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.form-hint{font-size:13px;color:var(--ink-soft);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:56px 0 0;}
@media(min-width:1024px){.site-footer{padding-top:72px;}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:40px;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:48px;}}
.footer-brand{
  display:inline-flex;align-items:baseline;gap:6px;font-size:20px;font-weight:700;color:#fff;
  margin-bottom:16px;
}
.footer-brand span{
  font-size:12px;font-weight:500;letter-spacing:.08em;color:rgba(255,255,255,.55);
  border-left:1px solid rgba(255,255,255,.2);padding-left:8px;
}
.footer-brand:hover{color:var(--brand-2);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;}
.footer-title{font-size:13px;letter-spacing:.1em;color:#fff;font-weight:600;margin-bottom:18px;}
.footer-links li,.footer-contact li{font-size:14px;line-height:1.8;margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--brand-2);}
.footer-contact{color:rgba(255,255,255,.6);}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);line-height:1.7;
}
.to-top{color:rgba(255,255,255,.7);white-space:nowrap;}
.to-top:hover{color:var(--brand-2);}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --ink:#111512;
  --ink-soft:#4A524C;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --line:#E4E2D9;
  --brand:#0F4C3A;
  --brand-2:#2BD69A;
  --accent:#E9663D;
  --r-sm:2px;
  --r-md:4px;
  --r-lg:8px;
  --shadow-1:0 1px 2px rgba(17,21,18,.04);
  --shadow-2:0 12px 32px rgba(17,21,18,.08);
  --cn:"PingFang SC","HarmonyOS Sans","Noto Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  --num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--cn);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:none;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 24px;}}
@media(min-width:1024px){.container{padding:0 32px;}}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.18em;color:var(--accent);}
.section-title{font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.3;font-weight:700;letter-spacing:-.02em;}
.section-sub{font-size:15px;color:var(--ink-soft);line-height:1.8;max-width:560px;}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s cubic-bezier(.22,1,.36,1),transform .48s cubic-bezier(.22,1,.36,1);}
.reveal.in{opacity:1;transform:none;}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;border-bottom:1px solid transparent;transition:background .24s ease,border-color .24s ease,backdrop-filter .24s ease;}
.site-header.scrolled{background:rgba(247,246,241,.94);backdrop-filter:blur(10px);border-bottom-color:var(--line);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{font-size:20px;font-weight:700;letter-spacing:-.02em;color:#fff;transition:color .24s ease;white-space:nowrap;}
.brand span{font-size:11.5px;font-weight:400;letter-spacing:.16em;margin-left:7px;opacity:.72;}
.nav-desktop{display:none;align-items:center;gap:26px;margin-left:auto;}
.nav-link{position:relative;font-size:14.5px;color:rgba(255,255,255,.82);padding:6px 0;transition:color .2s ease;}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--brand-2);transition:width .24s ease;}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{width:100%;}
.nav-link.is-active::before{content:"";position:absolute;left:-11px;top:50%;width:4px;height:4px;border-radius:50%;background:var(--accent);transform:translateY(-50%);}
.header-cta{display:none;padding:9px 18px;border:1px solid rgba(255,255,255,.42);border-radius:var(--r-md);font-size:14px;color:#fff;transition:background .24s ease,color .24s ease,border-color .24s ease;white-space:nowrap;}
.header-cta:hover{background:#fff;color:var(--ink);border-color:#fff;}
.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;margin-left:auto;padding:0 10px;}
.menu-toggle i{display:block;width:24px;height:1.5px;background:#fff;transition:background .24s ease;}
.scrolled .brand{color:var(--ink);}
.scrolled .nav-link{color:var(--ink-soft);}
.scrolled .nav-link:hover,.scrolled .nav-link.is-active{color:var(--ink);}
.scrolled .header-cta{color:var(--ink);border-color:var(--line);}
.scrolled .header-cta:hover{background:var(--brand);color:#fff;border-color:var(--brand);}
.scrolled .menu-toggle i{background:var(--ink);}
@media(min-width:1024px){
  .nav-desktop{display:flex;}
  .header-cta{display:inline-block;margin-left:10px;}
  .menu-toggle{display:none;}
}
.mobile-drawer{position:fixed;inset:0;z-index:80;background:var(--paper);padding:24px;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .32s cubic-bezier(.22,1,.36,1);}
.mobile-drawer.open{transform:translateX(0);}
.drawer-close{position:absolute;top:14px;right:16px;width:44px;height:44px;font-size:26px;line-height:1;color:var(--ink);}
.drawer-nav{margin-top:64px;display:flex;flex-direction:column;}
.drawer-nav a{font-size:22px;padding:18px 2px;border-bottom:1px solid var(--line);color:var(--ink);}
.drawer-nav a.is-active{color:var(--brand);border-bottom-color:var(--brand);}
.drawer-foot{margin-top:auto;font-size:13px;color:var(--ink-soft);line-height:1.9;border-top:1px solid var(--line);padding-top:18px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:150px 0 56px;color:#fff;background-image:linear-gradient(115deg,rgba(17,21,18,.9),rgba(17,21,18,.58)),url(/assets/images/backpic/back-2.png);background-size:cover;background-position:center;}
.hero-deco{position:absolute;right:-80px;bottom:-80px;width:320px;height:320px;border:1px solid rgba(255,255,255,.16);border-radius:50%;}
.hero-deco::after{content:"";position:absolute;inset:56px;border:1px solid rgba(255,255,255,.12);border-radius:50%;}
.hero-inner{position:relative;z-index:2;max-width:760px;}
.hero-kicker{font-size:12.5px;letter-spacing:.2em;color:var(--brand-2);}
.hero h1{font-size:clamp(1.9rem,4.4vw,3.1rem);line-height:1.22;font-weight:700;letter-spacing:-.02em;margin:16px 0 20px;}
.hero-sub{font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.82);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:34px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border:1px solid transparent;border-radius:var(--r-md);font-size:15px;font-weight:600;position:relative;transition:background .24s ease,color .24s ease,border-color .24s ease;}
.btn-primary{background:var(--brand);color:#fff;border-color:rgba(255,255,255,.24);}
.btn-primary::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand-2);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;}
.btn-primary:hover{background:var(--ink);}
.btn-primary:hover::after{transform:scaleX(1);}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.12);}
.link-underline{position:relative;font-size:15px;color:#fff;padding-bottom:3px;}
.link-underline::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:linear-gradient(90deg,var(--brand-2),transparent);transform:scaleX(.35);transform-origin:left;transition:transform .32s cubic-bezier(.22,1,.36,1);}
.link-underline:hover::after{transform:scaleX(1);}
.hero-trust{display:grid;grid-template-columns:1fr;gap:0;margin-top:56px;border-top:1px solid rgba(255,255,255,.2);}
.hero-trust div{padding:18px 0 0;font-size:14px;color:rgba(255,255,255,.78);}
.hero-trust strong{display:block;color:#fff;font-size:15px;font-weight:600;margin-bottom:4px;}
@media(min-width:768px){
  .hero{padding:170px 0 64px;}
  .hero-trust{grid-template-columns:repeat(3,1fr);}
  .hero-trust div{padding:20px 24px 0;border-left:1px solid rgba(255,255,255,.16);}
  .hero-trust div:first-child{padding-left:0;border-left:none;}
}

/* ---------- quickbar ---------- */
.quickbar{background:var(--card);border-bottom:1px solid var(--line);}
.quickbar-inner{display:flex;flex-wrap:wrap;gap:12px 32px;align-items:center;padding:15px 0;font-size:13.5px;color:var(--ink-soft);}
.quickbar-inner span{display:inline-flex;align-items:center;gap:8px;}
.quickbar-inner span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);flex:none;}
.quickbar-inner a{margin-left:auto;color:var(--brand);border-bottom:1px solid var(--brand);padding-bottom:1px;font-size:13.5px;}

/* ---------- archive list ---------- */
.archive{padding:72px 0;}
@media(min-width:1024px){.archive{padding:104px 0;}}
.section-head{display:flex;flex-direction:column;gap:16px;padding-bottom:26px;border-bottom:1px solid var(--line);}
.section-head .section-title{margin-top:10px;}
@media(min-width:1024px){
  .section-head{flex-direction:row;justify-content:space-between;align-items:flex-end;gap:48px;}
}
.archive-list{border-bottom:1px solid var(--line);}
.archive-row{position:relative;display:grid;grid-template-columns:1fr;gap:10px;padding:24px 14px;border-bottom:1px solid var(--line);transition:background .24s ease;}
.archive-row::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--brand-2);transform:scaleY(0);transform-origin:top;transition:transform .24s ease;}
.archive-row:hover{background:var(--card);}
.archive-row:hover::before{transform:scaleY(1);}
.archive-num{font-family:var(--num);font-size:2rem;line-height:1;font-weight:700;letter-spacing:-.03em;color:#DCD9CE;transition:color .24s ease;}
.archive-row:hover .archive-num{color:var(--brand);}
.archive-title{display:block;font-size:18.5px;font-weight:600;margin-bottom:8px;}
.archive-desc{display:block;font-size:15px;line-height:1.78;color:var(--ink-soft);max-width:700px;}
.archive-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding-top:4px;}
.tag{display:inline-block;font-size:12.5px;line-height:1.6;padding:3px 9px;border:1px solid var(--line);border-radius:var(--r-sm);color:var(--ink-soft);background:var(--paper);white-space:nowrap;}
.archive-arrow{font-size:16px;color:var(--ink-soft);transition:transform .24s ease,color .24s ease;}
.archive-row:hover .archive-arrow{transform:translateX(4px);color:var(--brand);}
@media(min-width:768px){
  .archive-row{grid-template-columns:96px minmax(0,1fr) 210px;gap:28px;align-items:start;padding:30px 20px;}
  .archive-num{font-size:2.9rem;}
  .archive-meta{justify-content:flex-end;padding-top:6px;}
  .archive-arrow{margin-left:6px;}
}
.archive-foot{margin-top:22px;font-size:13.5px;color:var(--ink-soft);}

/* ---------- stats ---------- */
.stats{background:var(--ink);color:#fff;padding:72px 0;}
@media(min-width:1024px){.stats{padding:96px 0;}}
.stats-head{max-width:640px;margin-bottom:44px;}
.stats-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.35;font-weight:700;margin-top:12px;}
.stats-head p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.68);}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:36px 24px;}
@media(min-width:1024px){.stats-grid{grid-template-columns:repeat(4,1fr);}}
.stat{padding-left:20px;border-left:1px solid rgba(255,255,255,.16);}
.stat-num{font-family:var(--num);font-size:clamp(2.1rem,4vw,3.1rem);font-weight:700;letter-spacing:-.03em;line-height:1.05;}
.stat-unit{font-size:13.5px;color:var(--brand-2);margin-left:6px;font-weight:600;}
.stat-label{margin-top:12px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.66);}

/* ---------- flow ---------- */
.flow{background:var(--card);padding:72px 0;}
@media(min-width:1024px){.flow{padding:104px 0;}}
.flow-grid{display:grid;grid-template-columns:1fr;gap:32px;margin-top:48px;}
@media(min-width:768px){.flow-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.flow-grid{grid-template-columns:repeat(4,1fr);gap:28px;}}
.flow-step{position:relative;padding-top:22px;border-top:2px solid var(--line);}
.flow-step::before{content:"";position:absolute;top:-2px;left:0;width:36px;height:2px;background:var(--brand);}
.step-idx{font-family:var(--num);font-size:12.5px;font-weight:600;letter-spacing:.14em;color:var(--accent);}
.step-title{font-size:17.5px;font-weight:600;margin:12px 0 8px;}
.step-text{font-size:14.5px;line-height:1.78;color:var(--ink-soft);}

/* ---------- faq ---------- */
.faq{padding:72px 0 80px;}
@media(min-width:1024px){.faq{padding:96px 0 104px;}}
.faq-wrap{display:grid;grid-template-columns:1fr;gap:36px;}
@media(min-width:1024px){.faq-wrap{grid-template-columns:0.72fr 1.28fr;gap:64px;align-items:start;}}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{display:flex;align-items:flex-start;gap:16px;width:100%;padding:24px 0;text-align:left;font-size:17px;font-weight:600;line-height:1.6;transition:color .2s ease;}
.faq-q:hover{color:var(--brand);}
.faq-idx{font-family:var(--num);font-size:13px;color:var(--accent);padding-top:4px;flex:none;}
.faq-icon{position:relative;width:14px;height:14px;margin-left:auto;margin-top:7px;flex:none;transition:transform .24s ease;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink-soft);}
.faq-icon::before{left:0;top:6.5px;width:14px;height:1px;}
.faq-icon::after{left:6.5px;top:0;width:1px;height:14px;transition:opacity .24s ease;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a p{padding:0 0 26px 32px;font-size:15.5px;line-height:1.85;color:var(--ink-soft);}

/* ---------- contact ---------- */
.contact{background:var(--card);padding:72px 0 80px;border-top:1px solid var(--line);}
@media(min-width:1024px){.contact{padding:96px 0 104px;}}
.contact-inner{display:grid;grid-template-columns:1fr;gap:44px;}
@media(min-width:1024px){.contact-inner{grid-template-columns:.85fr 1.15fr;gap:72px;}}
.contact-left h2{font-size:clamp(1.5rem,2.8vw,2.2rem);line-height:1.35;font-weight:700;margin:12px 0 18px;}
.contact-left p{font-size:15px;line-height:1.85;color:var(--ink-soft);}
.contact-facts{margin-top:28px;border-top:1px solid var(--line);}
.contact-facts li{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-soft);list-style:none;}
.contact-facts li strong{color:var(--ink);font-weight:600;}
.field{margin-bottom:26px;}
.field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:8px;letter-spacing:.04em;}
.field input,.field select,.field textarea{width:100%;border:0;border-bottom:1px solid var(--line);background:transparent;padding:10px 2px;font-size:15.5px;border-radius:0;transition:border-color .24s ease,box-shadow .24s ease;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-bottom-color:var(--brand);box-shadow:0 1px 0 0 var(--brand);}
.field textarea{resize:vertical;min-height:96px;line-height:1.75;}
.form-row{display:grid;grid-template-columns:1fr;gap:0 28px;}
@media(min-width:640px){.form-row{grid-template-columns:1fr 1fr;}}
.form-note{font-size:13px;line-height:1.8;color:var(--ink-soft);margin-top:6px;}
.form-msg{display:none;margin-top:20px;padding:12px 16px;font-size:14px;border-left:2px solid var(--brand-2);background:#F1F6F3;color:var(--ink);}
.form-msg.show{display:block;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 0;}
@media(min-width:1024px){.site-footer{padding:76px 0 0;}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:38px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.55fr 1fr 1fr 1fr;gap:44px;}}
.footer-brand{font-size:20px;font-weight:700;color:#fff;letter-spacing:-.02em;}
.footer-brand span{font-size:11.5px;font-weight:400;letter-spacing:.16em;margin-left:7px;opacity:.7;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;max-width:350px;}
.footer-title{font-size:13.5px;font-weight:600;color:#fff;letter-spacing:.08em;margin-bottom:16px;}
.footer-links,.footer-contact{list-style:none;margin:0;}
.footer-links li,.footer-contact li{margin-bottom:10px;font-size:14px;}
.footer-links a,.footer-contact a{transition:color .2s ease;}
.footer-links a:hover,.footer-contact a:hover{color:var(--brand-2);}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;margin-top:52px;padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.55);}
.to-top{color:var(--brand-2);}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation:none!important;transition:none!important;}
}

/* roulang page: category4 */
:root{
  --ink:#111512;
  --ink-soft:#4A524C;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --line:#E4E2D9;
  --brand:#0F4C3A;
  --brand-2:#2BD69A;
  --accent:#E9663D;
  --r-sm:2px;
  --r-md:4px;
  --r-lg:8px;
  --shadow-1:0 1px 2px rgba(17,21,18,.04);
  --shadow-2:0 12px 32px rgba(17,21,18,.08);
  --container:1240px;
  --font-sans:"Inter","PingFang SC","HarmonyOS Sans","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.75;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:1px solid var(--brand-2);outline-offset:3px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:70;height:72px;display:flex;align-items:center;transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;}
.site-header.is-scrolled{background:rgba(247,246,241,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:inline-flex;align-items:baseline;gap:6px;font-size:20px;font-weight:700;letter-spacing:-.02em;color:#F7F6F1;transition:color .3s ease;}
.brand span{font-size:12px;font-weight:500;letter-spacing:.12em;color:rgba(247,246,241,.62);transition:color .3s ease;}
.site-header.is-scrolled .brand{color:var(--ink);}
.site-header.is-scrolled .brand span{color:var(--ink-soft);}
.nav-desktop{display:none;align-items:center;gap:30px;}
@media (min-width:1024px){.nav-desktop{display:flex;}}
.nav-link{position:relative;font-size:14px;color:rgba(247,246,241,.82);padding:6px 0;transition:color .24s ease,opacity .24s ease;}
.nav-link:hover{color:#FFFFFF;}
.site-header.is-scrolled .nav-link{color:var(--ink-soft);}
.site-header.is-scrolled .nav-link:hover{color:var(--ink);}
.nav-link.is-active{color:#FFFFFF;}
.site-header.is-scrolled .nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;background:var(--brand-2);}
.nav-link.is-active::before{content:"";position:absolute;left:-13px;top:50%;width:4px;height:4px;margin-top:-2px;border-radius:50%;background:var(--accent);}
.header-cta{display:none;padding:9px 18px;font-size:13px;border:1px solid rgba(247,246,241,.42);border-radius:var(--r-md);color:#F7F6F1;transition:all .24s ease;}
@media (min-width:640px){.header-cta{display:inline-flex;}}
.header-cta:hover{background:var(--brand-2);border-color:var(--brand-2);color:var(--ink);}
.site-header.is-scrolled .header-cta{border-color:var(--line);color:var(--ink);}
.site-header.is-scrolled .header-cta:hover{background:var(--brand-2);border-color:var(--brand-2);color:var(--ink);}
.menu-toggle{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;background:none;border:0;cursor:pointer;padding:0 10px;}
.menu-toggle i{display:block;height:1px;width:22px;background:#F7F6F1;transition:background .3s ease;}
.site-header.is-scrolled .menu-toggle i{background:var(--ink);}
@media (min-width:1024px){.menu-toggle{display:none;}}

/* ---------- drawer ---------- */
.mobile-drawer{position:fixed;inset:0;z-index:90;background:var(--paper);padding:26px 24px;display:flex;flex-direction:column;transform:translateX(102%);transition:transform .36s cubic-bezier(.22,1,.36,1);}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:34px;}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-md);background:none;font-size:20px;line-height:1;color:var(--ink);cursor:pointer;}
.drawer-nav a{display:block;padding:20px 0;font-size:22px;font-weight:600;letter-spacing:-.01em;border-bottom:1px solid var(--line);color:var(--ink);}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-foot{margin-top:auto;font-size:13px;color:var(--ink-soft);line-height:1.9;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:168px 0 80px;background-color:var(--ink);background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;color:#F7F6F1;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(118deg,rgba(17,21,18,.9) 0%,rgba(17,21,18,.72) 46%,rgba(15,76,58,.68) 100%);}
.hero .container{position:relative;z-index:3;}
.hero-deco{position:absolute;right:-130px;bottom:-160px;width:460px;height:460px;border-radius:50%;border:1px solid rgba(247,246,241,.13);z-index:2;}
.hero-deco::before{content:"";position:absolute;inset:64px;border-radius:50%;border:1px solid rgba(247,246,241,.1);}
.hero-deco::after{content:"";position:absolute;inset:150px;border-radius:50%;border:1px solid rgba(43,214,154,.28);}
.hero-inner{max-width:720px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.2em;color:var(--brand-2);}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand-2);}
.hero h1{margin-top:20px;font-size:clamp(2.2rem,5.6vw,4rem);font-weight:700;letter-spacing:-.03em;line-height:1.12;color:#FFFFFF;}
.hero-sub{margin-top:22px;font-size:clamp(1rem,1.6vw,1.125rem);line-height:1.9;color:rgba(247,246,241,.78);max-width:600px;}
.hero-actions{margin-top:38px;display:flex;flex-wrap:wrap;align-items:center;gap:20px;}
.hero-facts{margin-top:64px;padding-top:26px;border-top:1px solid rgba(247,246,241,.18);display:grid;gap:18px;}
@media (min-width:768px){.hero-facts{grid-template-columns:repeat(3,1fr);gap:28px;}}
.hero-facts div{font-size:14px;color:rgba(247,246,241,.72);line-height:1.7;}
.hero-facts strong{display:block;font-size:15px;font-weight:600;color:#FFFFFF;margin-bottom:4px;}

/* ---------- buttons ---------- */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 28px;min-height:44px;font-size:15px;font-weight:600;border-radius:var(--r-md);border:1px solid transparent;cursor:pointer;transition:background .24s ease,color .24s ease,border-color .24s ease,transform .24s ease;}
.btn-primary{background:var(--brand);color:#FFFFFF;overflow:hidden;}
.btn-primary::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand-2);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;}
.btn-primary:hover{background:var(--ink);}
.btn-primary:hover::after{transform:scaleX(1);}
.btn-light{background:#F7F6F1;color:var(--ink);}
.btn-light::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand-2);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;}
.btn-light:hover{background:var(--brand-2);}
.btn-light:hover::after{transform:scaleX(1);}
.btn-ghost{border-color:rgba(247,246,241,.4);color:#F7F6F1;background:transparent;}
.btn-ghost:hover{border-color:var(--brand-2);color:var(--brand-2);}
.btn-outline{border-color:var(--line);color:var(--ink);background:transparent;}
.btn-outline:hover{border-color:var(--ink);background:var(--card);}
.link-arrow{position:relative;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand);}
.link-arrow::after{content:"";position:absolute;left:0;bottom:-4px;width:100%;height:1px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .28s ease;}
.link-arrow:hover::after{transform:scaleX(1);}
.link-arrow.on-dark{color:var(--brand-2);}
.link-arrow.on-dark::after{background:var(--brand-2);}

/* ---------- sections ---------- */
.section{padding:60px 0;}
@media (min-width:768px){.section{padding:80px 0;}}
@media (min-width:1024px){.section{padding:104px 0;}}
.section-alt{background:var(--card);}
.section-head{max-width:720px;margin-bottom:44px;}
@media (min-width:1024px){.section-head{margin-bottom:60px;}}
.section-title{margin-top:14px;font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700;line-height:1.28;letter-spacing:-.02em;color:var(--ink);}
.section-lead{margin-top:18px;font-size:16px;line-height:1.85;color:var(--ink-soft);}

/* ---------- split ---------- */
.split{display:grid;gap:38px;align-items:center;}
@media (min-width:1024px){.split{grid-template-columns:1fr 1fr;gap:64px;}}
@media (min-width:1024px){.split.reverse .split-media{order:2;}}
.media{position:relative;overflow:hidden;border-radius:var(--r-md);background:#E9E7DF;box-shadow:var(--shadow-1);}
.media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s cubic-bezier(.22,1,.36,1);}
.media:hover img{transform:scale(1.03);}
.media-tag{position:absolute;left:16px;top:16px;font-size:12px;letter-spacing:.08em;padding:4px 10px;border-radius:var(--r-sm);background:rgba(17,21,18,.72);color:#F7F6F1;}
.split-body h3{font-size:1.25rem;font-weight:700;line-height:1.45;letter-spacing:-.01em;color:var(--ink);}
.split-body p{margin-top:16px;font-size:16px;line-height:1.85;color:var(--ink-soft);}
.point-list{margin-top:22px;border-top:1px solid var(--line);}
.point-list li{position:relative;padding:14px 0 14px 22px;border-bottom:1px solid var(--line);font-size:15px;line-height:1.75;color:var(--ink-soft);}
.point-list li::before{content:"";position:absolute;left:0;top:26px;width:8px;height:1px;background:var(--brand);}
.point-list li strong{color:var(--ink);font-weight:600;}
.split-body .link-arrow{margin-top:26px;}

/* ---------- tables ---------- */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.spec-table{width:100%;min-width:720px;border-collapse:collapse;background:transparent;}
.spec-table caption{text-align:left;font-size:13px;letter-spacing:.08em;color:var(--ink-soft);padding-bottom:14px;}
.spec-table thead th{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--ink-soft);text-align:left;padding:0 16px 14px;border-bottom:1px solid var(--ink);white-space:nowrap;}
.spec-table tbody td{padding:18px 16px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-soft);vertical-align:top;}
.spec-table tbody td:first-child{color:var(--ink);font-weight:600;white-space:nowrap;}
.spec-table tbody tr{transition:background .2s ease;}
.spec-table tbody tr:hover{background:rgba(15,76,58,.045);}
.spec-table.is-spec{min-width:640px;}
.spec-table.is-spec tbody td:first-child{width:180px;font-weight:600;}
.tag{display:inline-block;font-size:12px;line-height:1.7;padding:1px 8px;border:1px solid var(--line);border-radius:var(--r-sm);color:var(--ink-soft);background:var(--card);white-space:nowrap;}
.tag-soon{border-color:var(--brand);color:var(--brand);}
.tag-live{border-color:var(--brand-2);color:var(--brand);background:rgba(43,214,154,.12);}
.tag-done{border-color:var(--line);color:var(--ink-soft);}
.table-note{margin-top:18px;font-size:13px;line-height:1.8;color:var(--ink-soft);}

/* ---------- steps ---------- */
.steps{display:grid;gap:0;border-top:1px solid var(--line);}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr);column-gap:48px;}}
@media (min-width:1200px){.steps{grid-template-columns:repeat(4,1fr);}}
.step{position:relative;padding:30px 0;border-bottom:1px solid var(--line);}
.step-num{font-family:"Inter",var(--font-sans);font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--accent);}
.step h4{margin-top:14px;font-size:17px;font-weight:700;line-height:1.5;color:var(--ink);}
.step p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--ink-soft);}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{width:100%;display:flex;align-items:center;gap:18px;padding:24px 0;background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;min-height:44px;}
.faq-index{font-family:"Inter",var(--font-sans);font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--accent);min-width:30px;}
.faq-icon{position:relative;margin-left:auto;flex:0 0 14px;width:14px;height:14px;transition:transform .24s ease;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink-soft);transition:transform .24s ease,opacity .24s ease;}
.faq-icon::before{left:0;top:6px;width:14px;height:1px;}
.faq-icon::after{left:6px;top:0;width:1px;height:14px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-item.is-open .faq-icon::before{background:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a-inner{padding:0 0 26px 48px;font-size:16px;line-height:1.85;color:var(--ink-soft);}

/* ---------- cta ---------- */
.cta-section{background:var(--ink);color:#F7F6F1;padding:64px 0;}
@media (min-width:768px){.cta-section{padding:80px 0;}}
@media (min-width:1024px){.cta-section{padding:104px 0;}}
.cta-grid{display:grid;gap:48px;}
@media (min-width:1024px){.cta-grid{grid-template-columns:1fr 1fr;gap:80px;}}
.cta-title{margin-top:14px;font-size:clamp(1.5rem,2.8vw,2.2rem);font-weight:700;line-height:1.35;letter-spacing:-.02em;color:#FFFFFF;}
.cta-text{margin-top:20px;font-size:16px;line-height:1.9;color:rgba(247,246,241,.72);}
.cta-meta{margin-top:34px;border-top:1px solid rgba(247,246,241,.16);padding-top:22px;display:grid;gap:14px;}
.cta-meta div{font-size:14px;color:rgba(247,246,241,.68);}
.cta-meta strong{color:#FFFFFF;font-weight:600;}
.form-row{display:grid;gap:22px;}
@media (min-width:640px){.form-row{grid-template-columns:1fr 1fr;}}
.field{margin-bottom:24px;}
.field label{display:block;font-size:13px;letter-spacing:.06em;color:rgba(247,246,241,.6);margin-bottom:8px;}
.field input,.field select,.field textarea{width:100%;background:transparent;border:0;border-bottom:1px solid rgba(247,246,241,.26);color:#F7F6F1;font-size:16px;font-family:inherit;padding:10px 0;outline:none;border-radius:0;transition:border-color .24s ease;}
.field input:focus,.field select:focus,.field textarea:focus{border-bottom-color:var(--brand-2);}
.field textarea{resize:vertical;min-height:88px;line-height:1.75;}
.field select option{color:#111512;}
.form-hint{margin-top:16px;font-size:13px;line-height:1.8;color:rgba(247,246,241,.55);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(247,246,241,.72);padding:72px 0 0;border-top:1px solid rgba(247,246,241,.08);}
.footer-grid{display:grid;gap:38px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;}}
.footer-brand{display:inline-flex;align-items:baseline;gap:6px;font-size:20px;font-weight:700;letter-spacing:-.02em;color:#F7F6F1;}
.footer-brand span{font-size:12px;font-weight:500;letter-spacing:.12em;color:rgba(247,246,241,.5);}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.9;max-width:360px;}
.footer-title{font-size:13px;font-weight:600;letter-spacing:.12em;color:#F7F6F1;margin-bottom:18px;}
.footer-links li,.footer-contact li{margin-bottom:12px;font-size:14px;line-height:1.7;}
.footer-links a{transition:color .2s ease;}
.footer-links a:hover{color:var(--brand-2);}
.footer-bottom{margin-top:60px;border-top:1px solid rgba(247,246,241,.12);padding:24px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(247,246,241,.6);}
.to-top{color:var(--brand-2);}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s cubic-bezier(.22,1,.36,1),transform .48s cubic-bezier(.22,1,.36,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1 !important;transform:none !important;}
  html{scroll-behavior:auto;}
}