/* roulang page: index */
:root{
  --bg:#F3F1EB;
  --paper:#FFFFFF;
  --bg-soft:#E9E5DC;
  --ink:#0C1915;
  --muted:#5D6A64;
  --line:#E0DBD0;
  --brand:#0E6B52;
  --brand-dark:#084C39;
  --brand-deeper:#062E24;
  --accent:#D65A2B;
  --dark-block:#0A231C;
  --white:#F9F8F4;
  --radius-lg:24px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow-soft:0 18px 42px rgba(8,44,34,.10);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--ink);
  line-height:1.7;
  font-size:16px;
  min-width:320px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,box-shadow .25s ease,border-color .25s ease,opacity .25s ease}
button{font-family:inherit;background:none;border:none;cursor:pointer;color:inherit}
ul,ol{list-style:none}
.container{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){
  .container{padding-left:32px;padding-right:32px}
}
@media(min-width:1024px){
  .container{padding-left:48px;padding-right:48px}
}
.section{padding-top:clamp(64px,9vw,120px);padding-bottom:clamp(64px,9vw,120px);position:relative}
.section+.section{border-top:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--brand);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent);border-radius:99px}
.section-head{
  display:flex;flex-direction:column;gap:16px;
  margin-bottom:clamp(40px,6vw,72px);
}
.section-head.is-split{justify-content:space-between;gap:24px}
@media(min-width:768px){
  .section-head.is-split{flex-direction:row;align-items:flex-end}
}
.section-head h2,.faq-aside h2{
  font-size:clamp(1.7rem,3vw,2.6rem);
  line-height:1.2;font-weight:750;letter-spacing:-.02em;
  color:var(--ink);max-width:760px;
}
.section-desc{color:var(--muted);font-size:16px;max-width:680px;margin-top:10px}
/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-weight:650;font-size:15px;
  line-height:1;border:1px solid transparent;text-align:center;
  transition:transform .25s ease,background .25s ease,box-shadow .25s ease,color .25s ease,opacity .25s ease;
  min-height:48px;white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn:focus-visible,.text-link:focus-visible,.arrow-link:focus-visible,a:focus-visible{
  outline:3px solid rgba(14,107,82,.35);outline-offset:3px;border-radius:6px;
}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 12px 28px rgba(214,90,43,.22)}
.btn-accent:hover{background:#c84f20;transform:translateY(-2px);box-shadow:0 16px 34px rgba(214,90,43,.28)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.06);backdrop-filter:blur(6px)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.15);transform:translateY(-2px)}
.btn-dark{background:var(--dark-block);color:#fff}
.btn-dark:hover{background:var(--brand-deeper);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:var(--bg-soft);transform:translateY(-2px)}
.btn .btn-arrow{transition:transform .25s ease}
.btn:hover .btn-arrow{transform:translateX(4px)}
/* Header */
.site-header{
  position:fixed;top:0;left:0;width:100%;height:72px;
  display:flex;align-items:center;z-index:1000;
  background:rgba(252,251,247,.86);
  backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:height .3s ease,border-color .3s ease,box-shadow .3s ease,background .3s ease;
}
.site-header.scrolled{height:64px;background:rgba(255,255,255,.94);border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(6,30,24,.05)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;height:100%}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:none;
  background:linear-gradient(145deg,var(--brand),var(--brand-deeper));
  color:#fff;font-size:14px;font-weight:800;letter-spacing:-.02em;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(14,107,82,.2);
}
.brand-texts{display:flex;flex-direction:column;line-height:1.2}
.brand-texts strong{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.brand-texts small{font-size:11px;font-weight:600;color:var(--brand);letter-spacing:.04em;margin-top:2px}
@media(min-width:1024px){
  .brand-texts strong{font-size:21px}
  .brand-texts small{font-size:12px}
}
.site-nav{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.7);
  padding:6px 8px;border-radius:999px;
  border:1px solid rgba(224,219,208,.7);
  flex-shrink:0;
}
.site-nav a{
  font-size:15px;font-weight:550;color:var(--ink);
  padding:8px 16px;border-radius:999px;position:relative;
  transition:color .2s ease,background .2s ease,opacity .2s ease;
}
.site-nav a:hover{background:var(--bg-soft);opacity:.9}
.site-nav a.active{color:var(--brand-dark);background:var(--bg-soft);font-weight:700}
.site-nav a.active::before{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:12px}
.header-cta{padding:12px 22px;min-height:44px;font-size:14px;flex-shrink:0}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  background:var(--paper);flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:4px;transition:transform .3s ease,opacity .3s ease}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:1200px){
  .site-nav{position:fixed;top:0;right:0;height:100dvh;width:min(86vw,420px);
    background:var(--dark-block);border:0;flex-direction:column;align-items:flex-start;
    border-radius:0;padding:100px 32px 42px;transform:translateX(100%);
    transition:transform .4s cubic-bezier(.22,.61,.36,1);z-index:990;
  }
  .site-header.nav-open .site-nav{transform:translateX(0)}
  .site-header.nav-open .header-cta{opacity:0;pointer-events:none}
  .site-nav a{width:100%;font-size:18px;color:#E9E5DC;padding:16px 14px;border-radius:14px}
  .site-nav a.active{color:#fff;background:rgba(14,107,82,.72)}
  .site-nav a.active::before{display:none}
  .nav-toggle{display:flex;z-index:1001;position:relative}
  .header-cta.nav-mobile-cta{display:inline-flex;margin-top:26px;color:#fff;border-color:rgba(255,255,255,.5);background:transparent}
}
.nav-close-layer{position:fixed;inset:0;background:rgba(6,30,24,.44);backdrop-filter:blur(2px);opacity:0;pointer-events:none;transition:opacity .3s ease;z-index:980}
.site-header.nav-open ~ .nav-close-layer{opacity:1;pointer-events:auto}
/* Hero */
.hero{
  position:relative;min-height:100vh;min-height:100svh;
  display:flex;align-items:center;
  padding-top:140px;padding-bottom:96px;
  background:var(--dark-block);color:#fff;overflow:hidden;
}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.45;transform:scale(1.03);animation:heroZoom 14s ease-out both}
@keyframes heroZoom{from{transform:scale(1.08)}to{transform:scale(1.03)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(110deg,rgba(6,38,29,.92) 0%,rgba(10,43,34,.76) 45%,rgba(8,54,40,.55) 100%)}
.hero-content{position:relative;z-index:2;width:100%}
.hero-label{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;
  border-radius:999px;border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);color:#E0E8E3;font-size:13px;font-weight:600;
  letter-spacing:.08em;margin-bottom:30px;animation:fadeUp .6s ease both;
}
.hero h1{
  font-size:clamp(2.5rem,6vw,5.3rem);
  font-weight:800;line-height:1.02;letter-spacing:-.03em;
  color:#fff;max-width:850px;margin-bottom:26px;
  animation:fadeUp .6s .1s ease both;
}
.hero h1 .accent-text{color:var(--accent)}
.hero h1 .hero-line{display:block}
.hero-lead{
  max-width:660px;font-size:clamp(16px,1.8vw,19px);line-height:1.85;
  color:rgba(233,239,235,.92);margin-bottom:36px;animation:fadeUp .6s .2s ease both;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;animation:fadeUp .6s .3s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.hero-timer{
  margin-top:56px;max-width:920px;animation:fadeUp .6s .4s ease both;
}
.timer-strip{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius-lg);padding:18px 20px;backdrop-filter:blur(10px);
}
.timer-label{display:flex;align-items:center;gap:12px;font-weight:600;color:#fff;font-size:15px}
.timer-dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 6px rgba(214,90,43,.18);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(214,90,43,.18)}50%{box-shadow:0 0 0 9px rgba(214,90,43,.08)}}
.timer-count{margin-left:auto;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.timer-count .label{font-size:13px;color:rgba(233,239,235,.8);letter-spacing:.05em}
.timer-digit{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:28px;font-weight:700;letter-spacing:.04em;color:#fff;font-variant-numeric:tabular-nums;min-width:148px;text-align:center}
.timer-digit .unit{font-size:13px;font-weight:500;color:var(--accent);margin:0 4px}
.timer-btn{border-radius:999px;background:var(--accent);color:#fff;padding:12px 26px;font-weight:650;font-size:14px;transition:transform .25s ease,background .25s ease}
.timer-btn:hover{background:#c84f20;transform:translateY(-2px)}
/* Selling Points section */
.selling-wrap{display:grid;grid-template-columns:1fr;gap:40px}
@media(min-width:1024px){
  .selling-wrap{grid-template-columns:minmax(300px,420px) 1fr;gap:72px}
}
.selling-aside{position:relative;padding-top:12px}
.selling-aside h2{font-size:clamp(1.9rem,3.4vw,3rem);line-height:1.12;letter-spacing:-.02em;margin-top:16px}
.selling-aside p{color:var(--muted);margin-top:18px;max-width:380px}
.selling-more{display:inline-flex;margin-top:28px;color:var(--brand);font-weight:650}
.selling-more:hover{color:var(--accent)}
.selling-list{border-top:1px solid var(--line)}
.sell-item{
  display:grid;grid-template-columns:44px 1fr auto;
  gap:18px;align-items:center;padding:30px 4px;
  border-bottom:1px solid var(--line);transition:background .25s ease;
}
.sell-item:hover{background:rgba(233,229,220,.45);padding-left:16px}
.sell-index{font-size:30px;font-weight:250;color:var(--line);font-family:ui-serif,Georgia,serif;line-height:1}
.sell-item:hover .sell-index{color:var(--accent)}
.sell-main h3{font-size:clamp(18px,2vw,22px);font-weight:750;color:var(--ink);letter-spacing:-.01em}
.sell-main p{margin-top:7px;color:var(--muted);font-size:15px;max-width:620px}
.arrow-link{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  width:42px;height:42px;border-radius:999px;border:1px solid var(--line);
  color:var(--brand);font-weight:650;font-size:16px;
  transition:border-color .25s ease,color .25s ease,background .25s ease,transform .25s ease;
}
.arrow-link:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateX(4px)}
.sell-link-wide{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:15px;font-weight:650}
.sell-link-wide:hover{color:var(--accent)}
/* Image wall */
.wall-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;grid-auto-rows:210px}
@media(min-width:768px){.wall-grid{grid-template-columns:repeat(4,1fr);gap:16px;grid-auto-rows:220px}}
.wall-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  display:block;background:var(--bg-soft);box-shadow:0 0 0 1px rgba(224,219,208,.5);
  transition:box-shadow .3s ease,transform .3s ease;
}
.wall-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.22,.61,.24,1)}
.wall-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,35,28,0) 30%,rgba(10,35,28,.88) 100%)}
.wall-card:hover{box-shadow:0 22px 50px rgba(8,44,34,.14);transform:translateY(-4px)}
.wall-card:hover img{transform:scale(1.03)}
.wall-caption{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;color:#fff}
.wall-caption .tag{
  display:inline-block;padding:5px 11px;border-radius:999px;background:rgba(214,90,43,.92);
  color:#fff;font-size:12px;font-weight:600;margin-bottom:9px;letter-spacing:.02em;
}
.wall-caption h3{font-size:17px;font-weight:700;line-height:1.3;letter-spacing:-.01em}
.wall-caption p{margin-top:5px;font-size:13px;color:rgba(240,245,240,.86);line-height:1.55;max-width:380px}
.wall-card-feature{grid-column:span 2;grid-row:span 2}
.wall-card-tall{grid-row:span 2}
@media(min-width:768px){
  .wall-caption h3{font-size:19px}
  .wall-card-feature .wall-caption h3{font-size:26px}
  .wall-card-feature .wall-caption p{font-size:15px;max-width:560px}
}
@media(max-width:767px){
  .wall-grid{grid-auto-rows:180px}
  .wall-card-feature{grid-column:span 2;grid-row:span 2}
  .wall-caption{padding-right:8px}
  .wall-caption h3{font-size:17px}
  .wall-card-feature .wall-caption h3{font-size:22px}
}
@media(max-width:520px){
  .wall-grid{grid-template-columns:1fr;grid-auto-rows:210px}
  .wall-card-feature{grid-column:span 1;grid-row:span 1}
}
.text-link{color:var(--brand);font-weight:650;font-size:15px;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.text-link:hover{color:var(--accent);gap:10px}
.wall-more{text-align:center;margin-top:32px;font-size:15px}
.wall-more a{color:var(--brand);font-weight:650;border-bottom:1px solid transparent}
.wall-more a:hover{border-bottom-color:var(--brand)}
/* CTA banner */
.cta-banner{
  position:relative;color:#fff;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-radius:0;display:flex;align-items:center;
  min-height:430px;
}
.cta-banner .container{position:relative;z-index:2}
.cta-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(6,34,26,.92),rgba(8,70,53,.6)),linear-gradient(180deg,rgba(10,35,28,.75),rgba(10,35,28,.85))}
.cta-inner{max-width:760px;padding:clamp(64px,8vw,100px) 0}
.cta-inner .eyebrow{color:#fff}
.cta-inner .eyebrow::before{background:var(--accent)}
.cta-inner h2{font-size:clamp(2rem,4.2vw,3.4rem);line-height:1.12;letter-spacing:-.02em;margin:18px 0 20px}
.cta-inner p{font-size:17px;line-height:1.9;color:rgba(233,239,235,.92);max-width:660px;margin-bottom:34px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
/* FAQ */
.faq-section{background:var(--bg-soft)}
.faq-layout{display:grid;grid-template-columns:1fr;gap:40px;align-items:start}
@media(min-width:1024px){.faq-layout{grid-template-columns:minmax(300px,400px) 1fr;gap:72px}}
.faq-aside{padding-top:10px}
.faq-aside p{margin-top:18px;color:var(--muted);max-width:380px}
.faq-aside .btn{margin-top:28px;background:var(--dark-block);color:#fff}
.faq-aside .btn:hover{background:var(--brand-dark)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);background:transparent;transition:background .3s ease}
.faq-question{
  display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 6px;
  text-align:left;width:100%;font-size:17px;font-weight:650;color:var(--ink);
  transition:color .25s ease;letter-spacing:-.01em;
}
.faq-question:hover{color:var(--brand)}
.faq-question .q-prefix{color:var(--accent);font-size:15px;font-weight:750;margin-right:6px}
.faq-icon{
  width:26px;height:26px;flex:none;position:relative;border-radius:50%;
  border:1px solid var(--line);background:var(--paper);transition:background .3s ease,border-color .3s ease,transform .3s ease;
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;width:12px;height:2px;background:var(--muted);transform:translate(-50%,-50%);transition:background .3s ease,transform .3s ease}
.faq-icon::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-item.open .faq-icon{background:var(--accent);border-color:var(--accent)}
.faq-item.open .faq-icon::before{background:#fff}
.faq-item.open .faq-icon::after{background:#fff;transform:translate(-50%,-50%) rotate(0deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .45s cubic-bezier(.22,.61,.2,1)}
.faq-answer-inner{padding:0 34px 26px 40px;color:var(--muted);font-size:16px;max-width:820px}
.faq-answer-inner p+ p{margin-top:14px}
.faq-item.open{background:rgba(255,255,255,.5)}
.faq-item.open .faq-question{color:var(--brand-dark)}
.faq-item.open .faq-answer{max-height:600px}
.faq-contact-card{margin-top:28px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px 24px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between}
.faq-contact-card strong{display:block;font-size:16px;font-weight:700}
.faq-contact-card p{font-size:14px;color:var(--muted);margin-top:4px}
/* News list */
.news-section{background:var(--paper)}
.news-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:768px){.news-grid{grid-template-columns:1fr 1fr;gap:18px}}
@media(min-width:1200px){.news-grid{grid-template-columns:repeat(3,1fr);gap:20px}}
.news-card{
  position:relative;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px 24px;display:flex;flex-direction:column;gap:12px;
  transition:border-color .25s ease,box-shadow .3s ease,transform .3s ease;
}
.news-card:hover{border-color:rgba(14,107,82,.36);box-shadow:var(--shadow-soft);transform:translateY(-4px)}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.news-meta .tag{
  display:inline-flex;align-items:center;padding:5px 14px;border-radius:999px;
  background:rgba(14,107,82,.09);color:var(--brand);font-size:13px;font-weight:650;
}
.news-meta time{color:var(--muted);font-size:14px}
.news-title{font-size:19px;font-weight:750;color:var(--ink);line-height:1.45;letter-spacing:-.01em}
.news-title a{display:inline}
.news-title a:hover{color:var(--brand)}
.news-summary{color:var(--muted);font-size:15px;line-height:1.75;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:650;font-size:14px;margin-top:6px}
.news-link:hover{color:var(--accent);gap:10px}
.news-empty{
  border:1px dashed var(--line);border-radius:var(--radius-lg);
  padding:56px 20px;text-align:center;color:var(--muted);font-size:16px;
  background:var(--bg);
}
/* Footer */
.site-footer{
  background:var(--dark-block);color:#C9D7D1;
  padding:80px 0 34px;margin-top:auto;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:44px;padding-bottom:46px;border-bottom:1px solid rgba(255,255,255,.1)}
@media(min-width:768px){.footer-grid{grid-template-columns:1.2fr .8fr .8fr}}
.footer-brand .brand-texts strong{color:#fff}
.footer-brand .brand-texts small{color:#9BB8AE}
.footer-brand p{max-width:320px;margin-top:18px;font-size:14px;line-height:1.9;color:rgba(201,215,209,.75)}
.footer-head{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:22px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:15px;color:rgba(201,215,209,.86);color:#D6E1DD}
.footer-col a:hover{color:#fff;padding-left:4px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:26px;font-size:13px;color:rgba(201,215,209,.6)}
.footer-bottom a{color:rgba(201,215,209,.75);border-bottom:1px solid transparent}
.footer-bottom a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.6)}
/* media tidy */
@media(min-width:768px) and (max-width:1023px){
  .header-cta .cta-text{display:none}
  .header-cta{padding:12px 16px}
}
@media(max-width:767px){
  .hero{padding-top:112px;padding-bottom:72px}
  .hero-actions .btn{flex:1 1 auto;justify-content:center}
  .header-cta{padding:10px 14px;min-height:40px;font-size:13px}
  .header-cta .cta-text{display:none}
  .timer-strip{align-items:flex-start;flex-direction:column}
  .timer-count{margin:6px 0 0;width:100%;justify-content:space-between}
  .timer-digit{font-size:25px;min-width:0}
  .sell-item{grid-template-columns:40px 1fr;padding:24px 6px}
  .sell-item .arrow-link{display:none}
  .sell-main p{font-size:14.5px}
  .faq-contact-card{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr}
}
@media(min-width:361px) and (max-width:520px){
  .section-head h2{font-size:1.6rem}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto}
  .hero-bg{animation:none}
}

/* roulang page: category1 */
:root {
            --page-bg: #F3F1EB;
            --surface: #FFFFFF;
            --surface-soft: #E9E5DC;
            --dark: #0A231C;
            --ink: #0C1915;
            --noble-ink: #1C2E28;
            --muted: #5D6A64;
            --line: #E0DBD0;
            --brand: #0E6B52;
            --brand-deep: #084C39;
            --accent: #D65A2B;
            --btn-hover: #BC4A20;
            --footer-bg: #0A231C;
            --footer-text: rgba(255, 255, 255, 0.76);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-pill: 999px;
            --shadow-card: 0 4px 20px rgba(10, 35, 28, 0.04);
            --shadow-hover: 0 16px 40px rgba(10, 35, 28, 0.12);
            --container: 1280px;
            --header-h: 68px;
            --space-section: clamp(64px, 9vw, 120px);
            --font-base: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--header-h) + 24px);
        }

        body {
            font-family: var(--font-base);
            background: var(--page-bg);
            color: var(--ink);
            line-height: 1.85;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        body.no-scroll {
            overflow: hidden;
        }

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

        a {
            color: var(--brand);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        a:hover {
            color: var(--brand-deep);
            text-decoration: underline;
        }

        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        input,
        textarea {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: -0.01em;
        }

        .container {
            max-width: calc(var(--container) + 96px);
            padding-left: clamp(20px, 4vw, 48px);
            padding-right: clamp(20px, 4vw, 48px);
            margin-left: auto;
            margin-right: auto;
            width: 100%;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid transparent;
            z-index: 1000;
            transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, height 0.3s ease;
        }

        .site-header.scrolled {
            height: 56px;
            background: #ffffff;
            border-color: rgba(224, 219, 208, 0.9);
            box-shadow: 0 6px 24px rgba(10, 35, 28, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: calc(var(--container) + 96px);
            height: 100%;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none !important;
            outline: none;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--brand-deep) 100%);
            color: #ffffff;
            font-size: 16px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1;
            box-shadow: 0 4px 12px rgba(14, 107, 82, 0.22);
        }

        .brand-texts {
            display: inline-flex;
            flex-direction: column;
            line-height: 1.2;
            gap: 2px;
        }

        .brand-texts strong {
            color: var(--ink);
            font-size: 16px;
            font-weight: 800;
            letter-spacing: 0.02em;
        }

        .brand-texts small {
            color: var(--muted);
            font-size: 11px;
            font-weight: 500;
            letter-spacing: 0.04em;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }

        .site-nav a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 18px;
            font-weight: 500;
            font-size: 15px;
            color: #3E4A44;
            border-radius: var(--radius-pill);
            transition: color 0.25s ease, background 0.25s ease;
            letter-spacing: 0.01em;
        }

        .site-nav a:hover {
            color: var(--brand);
            background: rgba(14, 107, 82, 0.06);
            text-decoration: none;
        }

        .site-nav a.active {
            color: var(--brand);
            background: rgba(14, 107, 82, 0.07);
            font-weight: 700;
            position: relative;
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: 14px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            font-size: 15px;
            line-height: 1;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            transition: all 0.3s cubic-bezier(0.2, 0.2, 0, 1);
            text-decoration: none !important;
            white-space: nowrap;
            outline: none;
            border: 1px solid transparent;
        }

        .btn:hover,
        .btn:focus-visible {
            transform: translateY(-2px);
            text-decoration: none;
        }

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

        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(214, 90, 43, 0.45);
            outline-offset: 2px;
        }

        .btn-accent {
            background: var(--accent);
            color: #ffffff;
            box-shadow: 0 8px 20px rgba(214, 90, 43, 0.2);
        }

        .btn-accent:hover {
            background: #BC4A20;
            color: #fff;
            box-shadow: 0 12px 28px rgba(214, 90, 43, 0.3);
        }

        .btn-ghost {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.42);
            color: #ffffff;
        }

        .btn-ghost:hover {
            color: #222;
            background-color: #ccc;
        }

        .btn-outline {
            background: transparent;
            border-color: rgba(14, 107, 82, 0.36);
            color: var(--brand);
        }

        .btn-outline:hover {
            border-color: var(--brand);
            background: rgba(14, 107, 82, 0.05);
        }

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

        .btn-light {
            background: #ffffff;
            color: var(--ink);
        }

        .header-cta {
            height: 42px;
            padding: 0 24px;
            font-size: 14px;
        }

        .header-cta .cta-text {
            margin-right: 2px;
        }

        .nav-mobile-cta {
            display: none;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            padding: 10px;
            border-radius: 12px;
            background: rgba(14, 107, 82, 0.05);
            transition: background 0.25s ease;
        }

        .nav-toggle span {
            width: 20px;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
            margin-left: auto;
            margin-right: auto;
        }

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

        .nav-toggle.is-open span:nth-child(2) {
            opacity: 0;
        }

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

        .main {
            padding-top: var(--header-h);
        }

        .hero-cat {
            background: linear-gradient(135deg, #F3F1EB 0%, #EFEBE3 100%);
            padding: clamp(46px, 7vw, 88px) 0 0;
            overflow: hidden;
            border-bottom: 1px solid var(--line);
        }

        .hero-cat .container {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: clamp(30px, 5vw, 60px);
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(14, 107, 82, 0.1);
            color: var(--brand);
            font-weight: 600;
            font-size: 13px;
            padding: 7px 16px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.04em;
            margin-bottom: 22px;
        }

        .hero-badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        .hero-title {
            font-size: clamp(2.4rem, 4.6vw, 4.1rem);
            line-height: 1.06;
            margin-bottom: 18px;
            font-weight: 800;
            letter-spacing: -0.02em;
        }

        .hero-title .hi-light {
            color: var(--accent);
        }

        .hero-title .brand-green {
            color: var(--brand);
        }

        .hero-description {
            font-size: clamp(1rem, 1.6vw, 1.12rem);
            color: #4C5952;
            max-width: 580px;
            line-height: 1.9;
            border-left: 4px solid var(--brand);
            padding-left: 18px;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px 30px;
            margin-top: 26px;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 14px;
            color: #4C5952;
            font-weight: 500;
        }

        .hero-meta-item i {
            width: 22px;
            height: 22px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(14, 107, 82, 0.1);
            border-radius: 50%;
            color: var(--brand);
            font-style: normal;
            font-size: 12px;
        }

        .hero-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 16px 50px rgba(10, 35, 28, 0.18);
        }

        .hero-media img {
            width: 100%;
            height: 100%;
            min-height: 240px;
            object-fit: cover;
        }

        .hero-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 35, 28, 0.46) 0%, transparent 48%);
        }

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

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

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

        .section-head {
            margin-bottom: clamp(36px, 5vw, 56px);
        }

        .section-head .tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--brand);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .section-head h2 small {
            font-size: clamp(0.9rem, 1.6vw, 1.1rem);
            color: var(--muted);
            font-weight: 400;
            letter-spacing: 0;
            width: 100%;
            margin-top: 8px;
        }  

        .anchor-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            background: var(--brand);
            color: #fff;
            font-size: 15px;
            border-radius: 14px;
            padding: 0 10px;
            margin-right: 8px;
        }

        /* 步骤流程 */
        .flow-split {
            display: grid;
            grid-template-columns: 0.72fr 1.28fr;
            gap: clamp(32px, 5vw, 72px);
            align-items: start;
        }

        .flow-intro {
            position: sticky;
            top: calc(var(--header-h) + 40px);
        }

        .flow-intro .caption {
            font-size: 14px;
            color: var(--muted);
            margin: 16px 0 10px;
            line-height: 1.7;
        }

        .flow-steps {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .flow-step {
            display: grid;
            grid-template-columns: 64px 1fr;
            gap: 22px;
            padding: 24px 28px 24px 20px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            position: relative;
        }

        .flow-step:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(14, 107, 82, 0.3);
        }

        .step-index {
            font-size: 30px;
            font-weight: 800;
            color: transparent;
            -webkit-text-stroke: 1.6px var(--brand);
            line-height: 1.2;
            padding-top: 4px;
            text-align: right;
        }

        .step-dot {
            position: absolute;
            left: 20px;
            bottom: 20px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            opacity: 0.75;
        }

        .step-content h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--ink);
        }

        .step-content p {
            font-size: 14.5px;
            color: #55635c;
            line-height: 1.8;
            margin: 0;
        }

        .step-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: var(--page-bg);
            color: #3A4B44;
            font-size: 12.5px;
            font-weight: 500;
            line-height: 1.5;
            border: 1px solid var(--line);
        }

        .tag-brand {
            background: rgba(14, 107, 82, 0.08);
            color: var(--brand);
            border-color: transparent;
        }

        .tag-orange {
            background: rgba(214, 90, 43, 0.12);
            color: var(--accent);
            border-color: transparent;
        }

        /* 左导航锚点 + 正文布局 */
        .doc-layout {
            display: grid;
            grid-template-columns: 260px minmax(0, 1fr);
            gap: clamp(28px, 4vw, 64px);
        }

        .doc-sidebar {
            position: sticky;
            top: calc(var(--header-h) + 30px);
            height: max-content;
            padding: 28px 20px;
            background: var(--page-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--line);
        }

        .doc-sidebar .sidebar-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            border-left: 3px solid var(--brand);
            padding: 2px 14px;
        }

        .sidebar-links {
            list-style: none;
            padding: 14px 10px 8px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .sidebar-links li a {
            font-size: 14px;
            font-weight: 500;
            color: #4E5B54;
            padding: 8px 12px;
            border-radius: 8px;
            display: block;
            transition: all 0.2s ease;
            text-decoration: none;
            border-left: 2px solid transparent;
        }

        .sidebar-links li a:hover {
            background: #E8E5DD;
            color: var(--brand);
            border-left-color: rgba(14, 107, 82, 0.2);
            text-decoration: none;
        }

        .doc-body {
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: clamp(34px, 5vw, 60px);
        }

        .doc-card,
        .text-card {
            background: #ffffff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: clamp(24px, 3.5vw, 48px) clamp(20px, 3vw, 40px);
        }

        .doc-card h2 {
            font-size: 1.55rem;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .doc-card h2 i {
            font-style: normal;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(214, 90, 43, 0.12);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
        }

        .doc-card h3 {
            margin: 26px 0 10px;
            font-size: 1.2rem;
        }
        
        .doc-card h3:first-child {
            margin-top: 0;
        }

        .doc-card p {
            color: #4B5750;
            margin-bottom: 12px;
            font-size: 15px;
        }

        .doc-card ul,
        .doc-card ol {
            margin: 0 0 12px 20px;
            color: #4B5750;
            font-size: 15px;
        }
        .doc-card ol {
            margin-left: 22px;
        }
        .doc-card li {
            margin: 8px 0;
        }

        .doc-card .alert-box {
            background: var(--page-bg);
            border-radius: 10px;
            padding: 16px 18px;
            font-size: 14px;
            margin: 18px 0;
            border-left: 4px solid var(--accent);
            color: var(--noble-ink);
            display: flex;
            gap: 10px;
        }

        .doc-card .alert-box.is-green {
            border-left-color: var(--brand);
        }

        .doc-card .alert-box .alert-icon {
            font-size: 16px;
            color: var(--accent);
            display: block;
        }

        .doc-card .alert-box.is-green .alert-icon {
            color: var(--brand);
        }

        .doc-card .alert-box strong {
            color: var(--ink);
        }

        /* 设备区块 */
        .split-card {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .mini-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 24px 26px;
            display: flex;
            gap: 16px;
            transition: transform 0.3s ease, border-color 0.3s ease;
        }

        .mini-card:hover {
            transform: translateY(-3px);
            border-color: rgba(14, 107, 82, 0.4);
        }

        .mini-card-icon {
            font-style: normal;
            font-size: 22px;
            font-weight: 800;
            min-width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(14,107,82,.08) 0%, rgba(14,107,82,.12) 100%);
            color: var(--brand);
            border-radius: 12px;
        }

        .mini-card-text strong {
            display: block;
            font-size: 16px;
            margin-bottom: 4px;
            color: var(--ink);
        }
        
        .mini-card-text span {
            font-size: 13.5px;
            color: #5E6B64;
            line-height: 1.65;
            display: block;
        }

        .platform-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .platform-list li {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 18px;
            background: #F9F8F5;
            border: 1px solid var(--line);
            border-radius: 12px;
            font-size: 14px;
            transition: all 0.2s ease;
        }

        .platform-list li:hover {
            background: rgba(14, 107, 82, 0.04);
            border-color: rgba(14, 107, 82, 0.24);
        }
        
        .platform-list img {
            width: 20px;
        }

        .platform-list .pf-icon {
            font-size: 20px;
            width: 20px;
            text-align: center;
        }

        .platform-list .go-arrow {
            margin-left: auto;
            color: var(--muted);
            font-size: 15px;
        }

        .platform-list li:hover .go-arrow {
            color: var(--brand);
        }

        .rule-note {
            font-size: 12px;
            color: #78847e;
            margin-top: 8px;
        }

        /* CTA banner */
        .cta-banner {
            background: linear-gradient(110deg, var(--dark) 0%, #0E3A2C 100%);
            padding: clamp(40px, 7vw, 90px) 0;
            overflow: hidden;
            position: relative;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url("/assets/images/backpic/back-1.png");
            background-size: cover;
            background-position: center;
            opacity: 0.16;
            mix-blend-mode: screen;
        }

        .cta-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .cta-banner .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255,255,255,0.72);
            margin-bottom: 12px;
            letter-spacing: 0.1em;
        }

        .cta-banner .eyebrow::before {
            content: "";
            width: 28px;
            height: 1px;
            background: var(--accent);
        }

        .cta-banner h2 {
            font-size: clamp(2rem, 4.4vw, 3.6rem);
            color: #fff;
            margin-bottom: 18px;
            line-height: 1.11;
            max-width: 12em;
        }

        .cta-banner p {
            color: rgba(255,255,255,0.66);
            max-width: 600px;
            margin: 0 auto 36px;
            font-size: 16px;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
        }

        /* FAQ */
        .faq-wrap {
            margin-bottom: 24px;
        }

        .faq-btn {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 22px 8px;
            border-bottom: 1px solid var(--line);
            background: none;
            text-align: left;
            color: var(--ink);
            font-size: 16px;
            font-weight: 600;
            transition: color 0.2s ease;
        }

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

        .faq-btn .faq-icon {
            position: relative;
            width: 22px;
            height: 22px;
            flex-shrink: 0;
        }

        .faq-btn .faq-icon::before,
        .faq-btn .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--brand);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            transition: all 0.35s ease;
            border-radius: 2px;
        }

        .faq-btn .faq-icon::before {
            width: 16px;
            height: 2px;
        }

        .faq-btn .faq-icon::after {
            width: 2px;
            height: 16px;
        }

        .faq-active .faq-icon::after {
            transform: translate(-50%, -50%) scaleY(0);
        }

        .faq-active .faq-icon::before {
            background: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease-in-out, padding 0.3s ease;
            padding: 0 28px;
            padding-left: 0;
        }

        .faq-item-faq.faq-active .faq-answer,
        .faq-answer.open {
            max-height: 600px;
            padding-top: 2px;
            padding-bottom: 18px;
        }

        .faq-answer p {
            font-size: 15px;
            color: #516058;
        }

        .faq-active .faq-btn {
            color: var(--brand);
        }

        .faq-item-faq {
            margin-bottom: 0;
        }

        /* Footer */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding: clamp(48px, 8vw, 90px) 0 30px;
            font-size: 14.5px;
            line-height: 1.8;
        }

        .site-footer a {
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.25s ease, opacity 0.25s ease;
            text-decoration: none;
            font-size: 14px;
        }

        .site-footer a:hover {
            color: #fff;
            opacity: 1;
            text-decoration: none;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 0.8fr 0.8fr;
            gap: 36px 44px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand p {
            margin: 14px 0 0;
            max-width: 320px;
            color: rgba(255, 255, 255, 0.53);
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 14px;
            font-weight: 600;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col li a {
            color: rgba(255, 255, 255, 0.64);
        }

        .footer-col li a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            padding-top: 26px;
            display: flex;
            justify-content: space-between;
            gap: 10px 20px;
            flex-wrap: wrap;
            color: rgba(255, 255, 255, 0.48);
            font-size: 13px;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .site-nav {
                position: fixed;
                top: 0;
                right: 0;
                width: min(420px, 86vw);
                height: 100vh;
                height: 100dvh;
                background: #ffffff;
                flex-direction: column;
                padding: calc(var(--header-h) + 26px) 30px 30px;
                gap: 4px;
                box-shadow: -24px 0 60px rgba(10, 35, 28, 0.12);
                transform: translateX(105%);
                transition: transform 0.35s cubic-bezier(0.2, 0.2, 0, 1);
                overflow-y: auto;
                z-index: 998;
            }
            .site-nav.is-open {
                transform: translateX(0);
            }
            .site-nav a {
                font-size: 17px;
                height: auto;
                padding: 14px 10px;
                justify-content: flex-start;
                width: 100%;
                border-bottom: 1px solid rgba(224, 219, 208, 0.3);
                border-radius: 0;
                color: var(--ink);
            }
            .site-nav a.active {
                background: none;
                color: var(--brand);
                font-weight: 700;
                border-bottom: 1px solid rgba(14, 107, 82, 0.2);
            }
            .site-nav a.active::after {
                display: none;
            }
            .site-nav .nav-mobile-cta {
                display: inline-flex;
                margin-top: 20px;
                height: 44px;
                width: auto;
                padding: 0 22px;
                background: rgba(214, 90, 43, 0.1);
                color: var(--accent);
                border-radius: 999px;
                font-weight: 700;
                border-bottom: none;
                justify-content: center;
            }
            .nav-toggle {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .hero-cat .container,
            .flow-split,
            .doc-layout {
                grid-template-columns: 1fr;
            }
            .flow-intro {
                position: static;
            }
            .doc-sidebar {
                display: none;
            }
            .cta-banner p {
                font-size: 15px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 62px;
            }
            .site-header.scrolled {
                height: 54px;
            }
            .header-inner {
                padding-left: 18px;
                padding-right: 18px;
            }
            .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 14px;
                border-radius: 10px;
            }
            .brand-texts strong {
                font-size: 15px;
            }
            .brand-texts small {
                font-size: 10px;
            }
            .btn {
                padding: 12px 22px;
            }
            .hero-title {
                font-size: clamp(2.25rem, 9vw, 2.8rem);
            }
            .hero-description {
                font-size: 15px;
                line-height: 1.75;
                border-left-width: 3px;
                padding-left: 14px;
            }
            .section {
                padding: 56px 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .flow-step {
                grid-template-columns: 46px 1fr;
                padding: 18px 14px 18px 10px;
                gap: 12px;
            }
            .step-index {
                font-size: 24px;
            }
            .step-content h3 {
                font-size: 17px;
            }
            .step-content p {
                font-size: 13.5px;
                line-height: 1.7;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
                padding-bottom: 32px;
            }
            .footer-brand p {
                max-width: 100%
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                font-size: 12.5px;
                text-align: center;
            }
            .doc-card {
                padding: 22px 18px;
                border-radius: 14px;
            }
            .doc-card h2 {
                font-size: 1.35rem;
            }
            .cta-buttons .btn {
                padding: 12px 22px;
                font-size: 14px;
            }
            .cta-banner {
                padding: 55px 0;
            }
        }

        @media (max-width: 520px) {
            .hero-meta {
                flex-direction: column;
                gap: 10px;
            }
            .hero-cat .container {
                gap: 24px;
            }
            .step-tags .tag {
                font-size: 11.5px;
                padding: 4px 10px;
            }
            .platform-list li {
                font-size: 13px;
                padding: 12px 12px;
            }
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
        }

/* roulang page: article */
:root{
  --bg:#F3F1EB;
  --surface:#FFFFFF;
  --bg2:#E9E5DC;
  --deep:#0A231C;
  --deep2:#084C39;
  --ink:#0C1915;
  --text:#22342D;
  --muted:#5D6A64;
  --line:#E0DBD0;
  --green:#0E6B52;
  --green-dark:#084C39;
  --accent:#D65A2B;
  --radius:20px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-sm:0 4px 18px rgba(12,25,21,.06);
  --shadow-md:0 16px 40px rgba(12,25,21,.10);
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  padding-top:68px;
}
body.nav-open{overflow:hidden}
img{display:block;max-width:100%}
a{color:var(--green);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--deep2)}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(214,90,43,.38);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px}}
@media(min-width:1024px){.container{padding-left:48px;padding-right:48px}}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;
  border-radius:var(--radius-pill);border:1px solid transparent;
  font-weight:600;font-size:15px;line-height:1;
  cursor:pointer;text-decoration:none;transition:all .25s ease;
}
.btn:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-accent:hover{background:#c64d22;border-color:#c64d22;color:#fff;box-shadow:0 8px 24px rgba(214,90,43,.25);transform:translateY(-2px)}
.btn-dark{background:var(--deep);border-color:var(--deep);color:#F5F1E8}
.btn-dark:hover{background:var(--deep2);border-color:var(--deep2);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.34);color:var(--surface)}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-1px)}
.btn-green{background:var(--green);border-color:var(--green);color:#fff}
.btn-green:hover{background:var(--deep2);border-color:var(--deep2);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(14,107,82,.2)}

.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.9);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;transition:background .3s ease,box-shadow .3s ease,border-color .3s ease,height .3s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:0 1px 0 rgba(12,25,21,.04),0 10px 30px rgba(12,25,21,.04);
}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--deep),var(--deep2));
  color:#FBF6ED;font-weight:800;font-size:14px;letter-spacing:.04em;border-radius:12px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.1);text-transform:uppercase;
}
.brand-texts{display:flex;flex-direction:column;line-height:1.2}
.brand-texts strong{color:var(--ink);font-size:16px;font-weight:800;letter-spacing:.01em}
.brand-texts small{color:var(--muted);font-size:11px;letter-spacing:.12em;font-weight:500}
.site-nav{display:none;align-items:center;gap:6px}
.site-nav > a{
  position:relative;display:flex;align-items:center;min-height:40px;padding:0 13px;border-radius:var(--radius-sm);
  color:#33413C;font-size:15px;font-weight:500;text-decoration:none;transition:color .2s ease,background .2s ease;
}
.site-nav > a:hover{color:var(--green);background:rgba(14,107,82,.06)}
.site-nav > a.active{color:var(--green);font-weight:700}
.site-nav > a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:var(--radius-pill);
  background:var(--green);transform-origin:left center;animation:menuLine .3s ease;
}
@keyframes menuLine{from{transform:scaleX(.3);opacity:0}to{transform:scaleX(1);opacity:1}}
.header-actions{display:flex;align-items:center;gap:12px}
.header-cta{min-height:42px;padding:10px 20px;font-size:14px}
.nav-mobile-cta{display:none}
.nav-toggle{
  display:flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:10px;background:transparent;border:0;border-radius:10px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px;transition:transform .3s ease,opacity .3s ease}
.nav-toggle:hover span{background:var(--green)}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;transform:scaleX(.4)}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(min-width:1024px){
  .site-nav{display:flex}
  .nav-toggle{display:none}
}

body.nav-open .site-nav{
  display:flex;position:fixed;top:68px;left:0;right:0;bottom:0;
  width:100%;height:calc(100dvh - 68px);flex-direction:column;align-items:stretch;justify-content:flex-start;gap:6px;
  background:rgba(255,255,255,.99);backdrop-filter:blur(14px);padding:26px 20px 40px;overflow-y:auto;z-index:990;
}
body.nav-open .site-nav > a{
  padding:15px 16px;border-radius:14px;font-size:17px;min-height:54px;justify-content:space-between;
  border-bottom:1px solid rgba(224,219,208,.7);
}
body.nav-open .site-nav > a.active{background:rgba(14,107,82,.08)}
body.nav-open .site-nav > a.active::after{display:none}
body.nav-open .site-nav .nav-mobile-cta{
  margin-top:18px;display:inline-flex;background:var(--accent);border-color:var(--accent);color:#fff;
}
@media(min-width:1024px){
  .header-inner{height:68px}
  .site-nav{display:flex}
  .site-nav > a{justify-content:center}
  .site-nav .nav-mobile-cta{display:none}
  .nav-toggle{display:none}
}

.article-hero{
  position:relative;overflow:hidden;color:#FAF6ED;
  padding:56px 0 148px;
  background-color:var(--deep);
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(to bottom,rgba(10,35,28,.55),rgba(10,35,28,.86)),
    url('/assets/images/backpic/back-2.webp') center 60%/cover no-repeat;
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
}
.article-hero .container{position:relative;z-index:2;text-align:center}
.breadcrumb{display:flex;justify-content:center;margin-bottom:34px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px;list-style:none;margin:0;padding:0}
.breadcrumb li{display:inline-block;font-size:13px;color:rgba(250,246,237,.72);letter-spacing:.03em}
.breadcrumb li + li::before{content:"/";margin-right:8px;color:rgba(250,246,237,.38)}
.breadcrumb a{color:rgba(250,246,237,.88);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s}
.breadcrumb a:hover{color:#fff;border-color:rgba(255,255,255,.45)}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  padding:6px 15px;border:1px solid rgba(255,255,255,.26);border-radius:var(--radius-pill);
  background:rgba(255,255,255,.1);color:rgba(255,255,255,.9);font-size:12px;font-weight:600;letter-spacing:.12em;
  backdrop-filter:blur(6px);
}
.hero-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.article-hero h1{
  max-width:960px;margin:0 auto;color:#FFFCF6;
  font-size:clamp(2.05rem,4.6vw,3.7rem);line-height:1.16;letter-spacing:-.02em;font-weight:800;
  text-wrap:balance;
}
.article-hero-meta{
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:center;align-items:center;
  margin-top:26px;color:rgba(250,246,237,.8);font-size:14px;
}
.article-hero-meta .meta-item{display:inline-flex;align-items:center;gap:9px}
.hero-meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.46)}

.page-main{
  position:relative;z-index:5;margin:-112px auto 0;
  max-width:1100px;width:calc(100% - 40px);
}
.article-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:28px;
  padding:clamp(24px,5vw,60px);box-shadow:0 20px 70px rgba(12,25,21,.10);
}
.article-content{
  display:block;
}
.article-content{
  color:#263530;font-size:16.5px;line-height:1.95;max-width:820px;
}
.article-content h1,.article-content h2{
  margin:2.1em 0 .65em;color:var(--ink);font-size:1.7rem;line-height:1.35;letter-spacing:-.01em;
}
.article-content h2{
  padding-left:0;font-weight:750;
  padding-bottom:.2em;border-bottom:1px solid var(--line);
}
.article-content h3{margin:1.9em 0 .5em;font-size:1.3rem;color:var(--ink)}
.article-content h4{margin:1.6em 0 .4em;font-size:1.06rem}
.article-content p{margin:0 0 1.7em}
.article-content p a{color:var(--green);text-decoration:underline;text-decoration-color:rgba(14,107,82,.3);text-underline-offset:4px}
.article-content p a:hover{text-decoration-color:var(--accent);color:var(--accent)}
.article-content ul,.article-content ol{margin:0 0 1.9em;padding-left:1.5em}
.article-content li{margin-bottom:.45em}
.article-content img{border-radius:18px;margin:2em auto;box-shadow:0 14px 38px rgba(12,25,21,.1)}
.article-content blockquote{
  margin:2em 0;padding:20px 24px;border-left:4px solid var(--accent);border-radius:0 16px 16px 0;
  background:#F7F3EB;color:var(--text);font-size:1.05em;
}
.article-content table{width:100%;border-collapse:collapse;margin:2em 0;background:var(--surface)}
.article-content th,.article-content td{border:1px solid var(--line);padding:12px 14px;text-align:left;font-size:15px}
.article-content th{background:var(--bg2);color:var(--ink);font-weight:700}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2.5em 0}
.article-content code{background:#EFECE4;padding:2px 7px;border-radius:6px;font-size:.92em}
.article-content pre{
  background:var(--deep);color:#E9E5DC;padding:20px;border-radius:16px;overflow:auto;line-height:1.7;margin:1.8em 0;font-size:14px;
}
.article-content pre code{background:transparent;padding:0;color:inherit}
.article-content h2:first-child,.article-content h3:first-child{margin-top:0}

.article-missing{
  background:var(--surface);border:1px solid var(--line);border-radius:28px;
  padding:clamp(28px,5vw,56px);text-align:center;box-shadow:0 16px 50px rgba(12,25,21,.08);
}
.article-missing-mark{
  width:64px;height:64px;display:flex;align-items:center;justify-content:center;margin:0 auto 22px;
  border-radius:22px;background:var(--bg2);color:var(--green);font-size:28px;
}
.article-missing h1{
  margin:0 0 12px;font-size:clamp(1.6rem,3vw,2.4rem);color:var(--ink);line-height:1.3;
}
.article-missing p{color:var(--muted);max-width:620px;margin:0 auto 24px}
.missing-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

.sub-sections{
  margin:clamp(56px,8vw,96px) auto 0;max-width:1280px;padding-left:20px;padding-right:20px;
}
@media(min-width:768px){.sub-sections{padding-left:32px;padding-right:32px}}
@media(min-width:1024px){.sub-sections{padding-left:48px;padding-right:48px}}
.section-heading{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;
}
.section-heading .kicker{
  display:block;color:var(--accent);font-size:13px;font-weight:700;letter-spacing:.1em;margin-bottom:5px;
}
.section-heading h2{
  margin:0;color:var(--ink);font-size:clamp(1.55rem,2.8vw,2.3rem);line-height:1.22;font-weight:800;
  letter-spacing:-.02em;
}
.section-heading .lead{color:var(--muted);font-size:15px;max-width:480px;line-height:1.75}
.explore-actions{display:flex;gap:10px}
.explore-card{
  display:grid;grid-template-columns:1fr;background:var(--surface);border:1px solid var(--line);
  border-radius:26px;overflow:hidden;text-decoration:none;transition:transform .4s ease,box-shadow .4s ease,border-color .3s ease;
}
.explore-card-media{min-height:220px;position:relative;overflow:hidden;background:var(--bg2)}
.explore-card-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform .55s ease}
.explore-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(12,25,21,.5))}
.explore-card-link{position:relative;z-index:2}
.explore-card-content{padding:22px 14px 6px}
.explore-card-content h3{margin:0 0 13px;font-size:1.3rem;color:var(--ink);line-height:1.4;transition:color .2s}
.explore-card-content p{margin:0;color:var(--muted);line-height:1.75;font-size:15px}
.explore-card-bottom{padding:10px 14px 22px;display:flex;justify-content:space-between}
.explore-card-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--green);font-weight:700;font-size:15px;
}
.explore-card:hover{
  border-color:rgba(14,107,82,.3);box-shadow:var(--shadow-md);transform:translateY(-5px);
}
.explore-card:hover img{transform:scale(1.04)}
.explore-card:hover h3{color:var(--deep2)}
@media(min-width:768px){
  .explore-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .explore-card:nth-child(2n){transform:translateY(25px)}
  .explore-card:nth-child(2n):hover{transform:translateY(20px)}
}
@media(min-width:1024px){
  .explore-card{direction:initial}
}

.cta-banner{
  position:relative;overflow:hidden;margin-top:clamp(70px,10vw,130px);background:var(--deep);color:#FBF6ED;
  display:grid;grid-template-columns:1fr;align-items:center;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(10,35,28,.92),rgba(10,35,28,.62)),
    url('/assets/images/backpic/back-1.png') center 30%/cover no-repeat;
}
.cta-inner{
  position:relative;z-index:2;display:flex;flex-direction:column;gap:22px;text-align:left;width:100%;
  padding:clamp(42px,7vw,86px) 20px;
}
@media(min-width:768px){
  .cta-banner .container{width:100%}
  .cta-inner{flex-direction:row;justify-content:space-between;align-items:center;text-align:left;padding-left:32px;padding-right:32px;}
  .cta-inner .cta-copy{max-width:640px}
}
@media(min-width:1024px){
  .cta-inner{padding-left:48px;padding-right:48px}
  .cta-inner .cta-copy{max-width:720px}
}
.cta-copy .kicker{color:#F0C9A8;font-size:13px;font-weight:700;letter-spacing:.1em;margin-bottom:8px;display:block}
.cta-copy h2{margin:0;color:#FFFDF8;font-size:clamp(1.9rem,4vw,3.1rem);line-height:1.16;letter-spacing:-.02em;font-weight:800}
.cta-copy p{margin:16px 0 0;color:rgba(251,246,237,.75);font-size:16px;line-height:1.8}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media(min-width:768px){
  .cta-actions{flex:0 0 auto}
}
.cta-actions .btn{min-width:160px}

.article-post-nav{
  display:grid;gap:16px;margin-top:44px;grid-template-columns:1fr;
}
@media(min-width:640px){.article-post-nav{grid-template-columns:1fr 1fr}}
.article-post-nav a{
  display:flex;gap:14px;align-items:center;justify-content:space-between;
  background:#F7F3EC;border:1px solid var(--line);border-radius:18px;
  padding:16px 20px;color:var(--ink);font-weight:600;transition:background .25s,border-color .25s,transform .25s;
}
.article-post-nav a:hover{background:#FFF;border-color:rgba(14,107,82,.3);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.article-post-nav .next{justify-content:flex-end;text-align:right;color:var(--deep2)}
.article-post-nav .post-arrow{color:var(--green);font-size:18px;flex:0 0 auto;line-height:1}

.site-footer{
  background:var(--deep);color:rgba(251,246,237,.82);padding:80px 0 28px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
@media(min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:42px}}
.footer-brand p{margin:18px 0 0;color:rgba(251,246,237,.62);font-size:14px;line-height:1.85;max-width:360px}
.footer-brand .brand-texts strong{color:#F8F4EB}
.footer-brand .brand-texts small{color:rgba(251,246,237,.55)}
.footer-brand .brand-mark{box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.footer-head{
  color:#FFFDF8;font-size:15px;font-weight:700;margin:0 0 18px;letter-spacing:.05em;
}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.footer-col a{
  color:rgba(251,246,237,.7);font-size:14px;text-decoration:none;display:inline-flex;align-items:center;gap:8px;
  transition:color .2s,transform .2s;
}
.footer-col a::before{content:"";width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.25);transition:background .2s}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-col a:hover::before{background:var(--accent)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;justify-content:space-between;
  padding-top:24px;color:rgba(251,246,237,.48);font-size:13px;
}
.footer-bottom a{color:rgba(251,246,237,.72);text-decoration:none}
.swatch-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-right:6px;vertical-align:1px}

.article-panel .meta-divider{
  border-top:1px solid var(--line);margin:22px 0 0;
}
@media(min-width:768px){
  .page-main{width:calc(100% - 64px)}
  .article-hero{padding-top:64px}
}
@media(min-width:1280px){
  .page-main{width:1100px}
}

.section-pad{
  padding:clamp(68px,9vw,120px) 0;
}

.empty-placeholder{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line);border-radius:26px;background:rgba(233,229,220,.5);
  min-height:220px;padding:40px;text-align:center;color:var(--muted);
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .explore-card:nth-child(2n){transform:none!important}
  body.nav-open .site-nav{transition:none}
}

/* roulang page: category2 */
:root {
  --bg: #F3F1EB;
  --surface: #FFFFFF;
  --panel: #E9E5DC;
  --dark: #0A231C;
  --dark-2: #084C39;
  --ink: #0C1915;
  --ink-soft: #5D6A64;
  --line: #E0DBD0;
  --primary: #0E6B52;
  --primary-dark: #084C39;
  --accent: #D65A2B;
  --radius-card: 20px;
  --radius-sm: 8px;
  --shadow: 0 12px 32px rgba(10, 35, 28, 0.06);
  --shadow-card: 0 18px 46px rgba(12, 25, 21, 0.10);
  --tr: 0.25s ease;
  --font: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  padding-top: 68px;
}
body.no-scroll { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease; }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
.container { width: 100%; max-width: 1280px; margin: 0 auto; padding-left: 48px; padding-right: 48px; }
[class*="btn"], .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 600;
  padding: 10px 24px;
  font-size: 15px;
  transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.btn:focus-visible, .site-nav a:focus-visible, .nav-toggle:focus-visible, .faq-question:focus-visible {
  outline: 3px solid rgba(214, 90, 43, 0.45);
  outline-offset: 3px;
}
.btn-accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-accent:hover { background: #ba4d20; border-color: #ba4d20; color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(214, 90, 43, 0.25); }
.btn-ghost { background: transparent; border-color: rgba(255,255,255,0.5); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,0.12); color: #fff; border-color: #fff; }
.btn-outline {
  background: transparent;
  border-color: #0E6B52;
  color: #0E6B52;
}
.btn-outline:hover { background: #0E6B52; color: #fff; transform: translateY(-2px); }
.btn-light { background: #fff; color: #0A231C; border-color: #fff; }
.btn-light:hover { background: #eae7df; color: #0A231C; border-color: #eae7df; transform: translateY(-2px); }
.btn-accent i, .btn-ghost i, .btn-light i, .btn-outline i { font-size: 14px; transition: transform 0.25s ease; }
.btn-accent:hover i { transform: translateX(3px); }
.section { padding: clamp(72px, 9vw, 128px) 0; }
.section-head { max-width: 800px; margin-bottom: 52px; }
.section-head h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.8rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-top: 10px;
  font-weight: 800;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--primary);
  text-transform: uppercase;
  background: rgba(14,107,82,0.08);
  border: 1px solid rgba(14,107,82,0.16);
  padding: 6px 14px;
  border-radius: 999px;
}
.section-lead { font-size: 16px; color: var(--ink-soft); margin-top: 16px; }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 68px;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: height 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}
.site-header.scrolled { height: 60px; background: rgba(255,255,255,0.98); border-bottom: 1px solid var(--line); box-shadow: 0 6px 24px rgba(12,25,21,0.05); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
  width: 42px;
  height: 42px;
  background: var(--dark);
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.02em;
  box-shadow: 0 6px 16px rgba(10,35,28,0.16);
}
.brand-texts { display: flex; flex-direction: column; line-height: 1.15; }
.brand-texts strong { font-size: 17px; font-weight: 800; color: var(--ink); letter-spacing: -0.01em; }
.brand-texts small { font-size: 11px; color: var(--accent); font-weight: 600; letter-spacing: 0.02em; }
.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: auto;
}
.site-nav a { font-size: 15px; font-weight: 500; color: var(--ink); position: relative; padding: 6px 2px; }
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 2px;
  width: 0;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.35s ease;
}
.site-nav a:hover::after,
.site-nav a.active::after { width: 100%; }
.site-nav a:hover { color: var(--primary); }
.site-nav a.active { color: var(--primary); font-weight: 700; }
.nav-mobile-cta { display: none; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-cta { padding: 9px 18px; font-size: 14px; }
.header-cta .cta-text { font-weight: 600; }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  transition: all 0.25s ease;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; transition: all 0.3s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ===== Hero ===== */
.page-hero {
  position: relative;
  padding: 110px 0 96px;
  background: linear-gradient(115deg, rgba(8,76,57,0.92) 0%, rgba(10,35,28,0.72) 52%, rgba(12,25,21,0.88) 100%), url('/assets/images/backpic/back-1.png') center 18% / cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  right: -120px;
  bottom: -200px;
  width: 480px;
  height: 480px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 50%;
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb { font-size: 13px; color: rgba(255,255,255,0.68); display: flex; align-items: center; gap: 10px; margin-bottom: 26px; }
.breadcrumb a { color: rgba(255,255,255,0.82); }
.breadcrumb a:hover { color: #fff; text-decoration: underline; }
.breadcrumb .icon-arrow { font-size: 12px; }
.hero-kicker {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #F1BF9C;
  margin-bottom: 18px;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.2);
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
}
.page-hero h1 {
  font-size: clamp(2.5rem, 5.6vw, 4.6rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #fff;
  max-width: 760px;
  margin-bottom: 24px;
}
.hero-lead {
  font-size: 17px;
  color: rgba(255,255,255,0.78);
  max-width: 660px;
  margin-bottom: 34px;
  line-height: 1.9;
}
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; }
.hero-bottom-info {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  font-size: 14px;
  color: rgba(255,255,255,0.72);
}

/* ===== Data Overview ===== */
.data-overview { background: var(--bg); }
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 24px;
}
.data-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 30px 26px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}
.data-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, var(--primary), transparent 80%);
  transform: scaleX(0.6);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.data-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: transparent; }
.data-card:hover::before { transform: scaleX(1); }
.data-num {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1;
  color: var(--primary);
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.data-num small { font-size: 1.4rem; color: var(--accent); margin-left: 2px; }
.data-label { display: block; font-size: 15px; font-weight: 700; color: var(--ink); margin-top: 14px; }
.data-text { font-size: 14px; color: var(--ink-soft); line-height: 1.75; margin-top: 8px; }

/* ===== Showcase ===== */
.showcase { background: var(--bg); padding-top: 24px; }
.showcase-list { display: flex; flex-direction: column; gap: clamp(76px, 10vw, 120px); }
.showcase-item { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 78px); align-items: center; }
.showcase-item.reverse .showcase-media { order: 2; }
.showcase-media {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(12,25,21,0.08);
}
.showcase-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.showcase-item:hover .showcase-media img { transform: scale(1.03); }
.showcase-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(10,35,28,0.18) 0%, transparent 45%);
  pointer-events: none;
}
.showcase-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--dark);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 999px;
  padding: 6px 18px;
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 2;
  letter-spacing: 0.08em;
}
.showcase-content .section-tag { margin-bottom: 12px; }
.showcase-content h3 {
  font-size: clamp(1.6rem, 2.6vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.22;
  margin: 14px 0 16px;
}
.showcase-content p { color: var(--ink-soft); font-size: 16px; line-height: 1.95; margin-bottom: 24px; }
.showcase-content .showcase-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  color: var(--primary);
  padding-bottom: 4px;
  border-bottom: 2px solid rgba(14,107,82,0.2);
  transition: border-color 0.25s ease, color 0.25s ease, transform 0.25s ease;
}
.showcase-content .showcase-link:hover { color: var(--accent); border-color: var(--accent); transform: translateX(3px); }

/* ===== Mode ===== */
.mode-section {
  background: linear-gradient(175deg, rgba(10,35,28,0.80), rgba(8,76,57,0.90)), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  background-color: var(--dark);
  color: #fff;
}
.mode-section .section-head { max-width: 720px; }
.mode-section .section-head h2 { color: #fff; }
.mode-section .section-tag { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.16); color: #F1BF9C; }
.section-sub-note { color: rgba(255,255,255,0.65); margin-top: 12px; }
.mode-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 52px; }
.mode-card {
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  background: rgba(255,255,255,0.04);
  transition: background 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}
.mode-card:hover { background: rgba(255,255,255,0.09); border-color: rgba(255,255,255,0.25); transform: translateY(-6px); }
.mode-icon {
  width: 50px;
  height: 50px;
  border-radius: 15px;
  background: rgba(214,90,43,0.18);
  border: 1px solid rgba(214,90,43,0.3);
  color: #F1BF9C;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 22px;
}
.mode-card h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.mode-card p { color: rgba(255,255,255,0.68); font-size: 14px; line-height: 1.85; }
.mode-card .mode-tag {
  display: inline-flex;
  margin-top: 18px;
  font-size: 12px;
  color: #F1BF9C;
  background: rgba(214,90,43,0.12);
  border-radius: 999px;
  padding: 4px 12px;
  letter-spacing: 0.03em;
}

/* ===== Content Index ===== */
.content-index { background: var(--panel); }
.index-grid { display: grid; grid-template-columns: 1.1fr 1.4fr; gap: clamp(30px, 5vw, 70px); align-items: start; }
.index-helper {
  position: sticky;
  top: 120px;
}
.index-helper h2 { font-size: clamp(1.8rem, 3.4vw, 2.8rem); font-weight: 800; line-height: 1.25; letter-spacing: -0.02em; }
.index-helper p { color: var(--ink-soft); margin-top: 18px; font-size: 16px; }
.table-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: 0 6px 16px rgba(12,25,21,0.03);
}
.index-row {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 24px;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s ease;
}
.index-row:last-child { border-bottom: none; }
.index-row:hover { background: #F7F4EE; }
.idx-no { font-size: 14px; font-weight: 800; color: var(--accent); width: 42px; flex-shrink: 0; letter-spacing: -0.02em; }
.idx-main { flex: 1; }
.idx-main h3 { font-size: 16px; font-weight: 700; color: var(--ink); }
.idx-main p { font-size: 14px; color: var(--ink-soft); line-height: 1.7; }
.idx-status { margin-left: auto; flex-shrink: 0; }
.idx-link { font-size: 14px; display: inline-flex; align-items: center; gap: 8px; color: var(--primary); font-weight: 600; transition: gap 0.25s ease; }
.idx-link i { font-size: 12px; transition: transform 0.25s ease; }
.idx-link:hover i { transform: translateX(4px); }

/* ===== Quote note ===== */
.notice-band { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 58px 0; }
.notice-inner {
  display: flex;
  align-items: center;
  gap: 48px;
  max-width: 1000px;
  margin: 0 auto;
}
.notice-mark {
  width: 72px;
  height: 72px;
  flex: 0 0 72px;
  border-radius: 50%;
  background: var(--dark);
  color: #fff;
  font-size: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.notice-inner blockquote { font-size: 18px; font-weight: 600; line-height: 1.8; color: var(--ink); border: none; margin: 0; }
.notice-inner blockquote span { color: var(--accent); font-weight: 800; }

/* ===== CTA Banner ===== */
.cta-banner {
  background: linear-gradient(120deg, rgba(8,76,57,0.90), rgba(10,35,28,0.78)), url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-banner::after {
  content: '';
  position: absolute;
  width: 420px;
  height: 420px;
  right: -120px;
  top: -150px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.12);
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
  position: relative;
  z-index: 2;
}
.cta-copy h2 { font-size: clamp(1.9rem, 4vw, 3.2rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; color: #fff; }
.cta-copy p { color: rgba(255,255,255,0.75); max-width: 600px; margin-top: 16px; font-size: 16px; }
.cta-actions { flex-shrink: 0; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg); }
.faq-col-wrap { display: grid; grid-template-columns: 0.9fr 1.6fr; gap: clamp(36px, 6vw, 90px); }
.faq-side .section-tag { margin-bottom: 14px; }
.faq-side h2 { font-size: clamp(1.8rem, 3.4vw, 2.8rem); line-height: 1.25; letter-spacing: -0.02em; margin-bottom: 14px; }
.faq-side p { color: var(--ink-soft); font-size: 16px; line-height: 1.85; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); background: var(--surface); }
.faq-item + .faq-item { border-top: none; }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 10px;
  background: none;
  border: none;
  text-align: left;
  font: inherit;
  color: var(--ink);
  cursor: pointer;
  transition: color 0.25s ease;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.35s ease;
  color: var(--primary);
  font-style: normal;
  font-size: 16px;
}
.faq-item.open .faq-icon { background: var(--accent); border-color: var(--accent); color: #fff; transform: rotate(225deg); }
.faq-answer { height: 0; overflow: hidden; transition: height 0.4s ease; }
.faq-answer-inner { padding: 0 42px 26px 10px; color: var(--ink-soft); font-size: 15px; line-height: 1.9; }

/* ===== Footer ===== */
.site-footer { background: var(--dark); color: rgba(255,255,255,0.75); padding: 72px 0 36px; }
.site-footer .brand { margin-bottom: 20px; }
.site-footer .brand-texts strong { color: #fff; }
.site-footer .brand-mark { background: #fff; color: var(--dark); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 0.8fr 1fr; gap: 52px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand p { max-width: 380px; color: rgba(255,255,255,0.58); font-size: 15px; line-height: 1.9; }
.footer-head { font-size: 14px; font-weight: 700; color: #fff; letter-spacing: 0.05em; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a { color: rgba(255,255,255,0.6); font-size: 14px; transition: color 0.25s ease, padding-left 0.25s ease; }
.footer-col ul a:hover { color: #F1BF9C; padding-left: 4px; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 28px;
  color: rgba(255,255,255,0.42);
  font-size: 13px;
}

/* ===== Responsive ===== */
@media (max-width: 1280px) {
  .container { padding-left: 32px; padding-right: 32px; }
}
@media (max-width: 1100px) {
  .site-nav { gap: 16px; }
  .site-nav a { font-size: 14px; }
}
@media (max-width: 1024px) {
  body { padding-top: 64px; }
  .site-header { height: 64px; }
  .site-header.scrolled { height: 58px; }
  .site-nav {
    position: fixed;
    inset: 0 0 0 auto;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    width: min(380px, 88%);
    padding: 100px 36px 40px;
    margin-left: 0;
    gap: 8px;
    z-index: 99;
    box-shadow: -8px 0 40px rgba(12, 25, 21, 0.14);
    transform: translateX(102%);
    transition: transform 0.4s ease;
    overflow-y: auto;
    border-left: 1px solid var(--line);
  }
  .site-nav.open { transform: translateX(0); }
  .site-nav a { font-size: 17px; font-weight: 600; padding: 10px 0; width: 100%; border-bottom: 1px solid #eee; border-radius: 0; }
  .site-nav a::after { display: none; }
  .site-nav a.active { color: var(--primary); }
  .nav-mobile-cta { display: inline-flex; margin-top: 18px; border-radius: 999px; border: 1px solid var(--line); padding: 12px 20px; }
  .nav-mobile-cta.btn-ghost { background: var(--dark); color: #fff; border-color: var(--dark); justify-content: center; }
  .header-cta { display: inline-flex; }
  .nav-toggle { display: flex; }
  .data-grid { grid-template-columns: repeat(2, 1fr); }
  .index-grid { grid-template-columns: 1fr; }
  .index-helper { position: static; }
  .mode-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 768px) {
  .container { padding-left: 20px; padding-right: 20px; }
  .page-hero { padding: 80px 0 70px; }
  .page-hero h1 { font-size: clamp(2rem, 8vw, 3.2rem); }
  .hero-actions .btn { padding: 11px 20px; }
  .showcase-item, .showcase-item.reverse { grid-template-columns: 1fr; gap: 28px; }
  .showcase-item.reverse .showcase-media { order: 0; }
  .faq-col-wrap { grid-template-columns: 1fr; }
  .notice-inner { flex-direction: column; gap: 20px; text-align: center; }
  .cta-banner { padding: 80px 0; }
  .cta-actions { width: 100%; }
  .cta-actions .btn { width: auto; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; }
}
@media (max-width: 520px) {
  .data-grid { grid-template-columns: 1fr; }
  .mode-grid { grid-template-columns: 1fr; }
  .header-cta .cta-text { display: none; }
  .header-cta { width: 44px; height: 40px; padding: 0; justify-content: center; }
  .page-hero { padding-top: 64px; }
  .page-hero h1 { letter-spacing: -0.02em; }
  .btn { font-size: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* roulang page: category3 */
:root {
    --bg: #F3F1EB;
    --bg-2: #E9E5DC;
    --surface: #FFFFFF;
    --deep: #0A231C;
    --deep-2: #084C39;
    --ink: #0C1915;
    --muted: #5D6A64;
    --line: #E0DBD0;
    --brand: #0E6B52;
    --brand-dark: #084C39;
    --accent: #D65A2B;
    --accent-dark: #B5441D;
    --white-01: rgba(255, 255, 255, .12);
    --shadow-sm: 0 6px 18px rgba(12, 25, 21, .05);
    --shadow-md: 0 14px 32px rgba(12, 25, 21, .09);
    --shadow-hover: 0 20px 42px rgba(12, 25, 21, .13);
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --radius-pill: 999px;
    --font-family: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  }
  *,
  *::before,
  *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    font-family: var(--font-family);
    background: var(--bg);
    color: var(--ink);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
  }
  body.page-hot {
    background: var(--bg);
  }
  img {
    display: block;
    max-width: 100%;
  }
  a {
    color: inherit;
    text-decoration: none;
  }
  button {
    font: inherit;
    border: none;
    background: none;
    cursor: pointer;
    color: inherit;
  }
  a:focus-visible,
  button:focus-visible {
    outline: 3px solid rgba(214, 90, 43, .42);
    outline-offset: 2px;
    border-radius: 6px;
  }
  ul,
  ol {
    list-style: none;
  }
  .container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding-left: clamp(20px, 4vw, 48px);
    padding-right: clamp(20px, 4vw, 48px);
  }

  .section {
    padding-top: clamp(72px, 10vw, 140px);
    padding-bottom: clamp(72px, 10vw, 140px);
  }
  .tag-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .12em;
    color: var(--brand);
    background: rgba(14, 107, 82, .08);
    border: 1px solid rgba(14, 107, 82, .15);
    padding: 6px 14px;
    border-radius: var(--radius-pill);
  }
  .tag-label::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
  }
  .section-head {
    max-width: 760px;
    margin-bottom: clamp(36px, 6vw, 60px);
  }
  .section-head h2 {
    margin-top: 18px;
    margin-bottom: 16px;
    font-size: clamp(1.75rem, 3vw, 2.6rem);
    line-height: 1.18;
    font-weight: 750;
    letter-spacing: -0.02em;
  }
  .section-head p {
    color: var(--muted);
    font-size: 16px;
    max-width: 640px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    padding-left: 22px;
    padding-right: 22px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    border: 1px solid transparent;
    transition: all .22s ease;
  }
  .btn-accent {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 8px 22px rgba(214, 90, 43, .22);
  }
  .btn-accent:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(214, 90, 43, .28);
  }
  .btn-accent:active {
    transform: translateY(0);
  }
  .btn-line {
    background: transparent;
    border-color: rgba(255, 255, 255, .52);
    color: #fff;
  }
  .btn-line:hover {
    background: rgba(255, 255, 255, .1);
    border-color: #fff;
  }
  .btn-ghost {
    background: rgba(14, 107, 82, .06);
    border-color: rgba(14, 107, 82, .14);
    color: var(--brand-dark);
  }
  .btn-ghost:hover {
    background: rgba(14, 107, 82, .12);
    border-color: rgba(14, 107, 82, .24);
  }
  .btn-lg {
    min-height: 52px;
    padding-left: 30px;
    padding-right: 30px;
    font-size: 16px;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, .92);
    border-bottom: 1px solid transparent;
    transition: box-shadow .3s ease, border-color .3s ease;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
  }
  .site-header.scrolled {
    border-color: var(--line);
    box-shadow: 0 8px 24px rgba(12, 25, 21, .05);
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: 68px;
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }
  .brand-mark {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--brand);
    color: #fff;
    font-weight: 800;
    font-size: 15px;
    letter-spacing: -.02em;
    line-height: 1;
  }
  .brand-texts {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
  }
  .brand-texts strong {
    font-size: 16px;
    font-weight: 750;
    letter-spacing: .02em;
  }
  .brand-texts small {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: .04em;
  }
  .site-nav {
    display: flex;
    align-items: center;
    gap: 24px;
  }
  .site-nav > a {
    position: relative;
    padding: 22px 0 18px;
    font-size: 15px;
    color: #36443e;
    font-weight: 500;
    transition: color .2s ease;
  }
  .site-nav > a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 12px;
    width: 100%;
    height: 2px;
    border-radius: 4px;
    background: var(--brand);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .24s ease;
  }
  .site-nav > a:hover {
    color: var(--brand-dark);
  }
  .site-nav > a:hover::after {
    transform: scaleX(1);
  }
  .site-nav > a.active {
    color: var(--brand);
    font-weight: 650;
  }
  .site-nav > a.active::after {
    transform: scaleX(1);
  }
  .header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .header-cta {
    min-height: 42px;
  }
  .header-cta .cta-arrow {
    transition: transform .22s ease;
  }
  .header-cta:hover .cta-arrow {
    transform: translateX(3px);
  }
  .nav-mobile-cta {
    display: none;
    width: 100%;
    margin-top: 10px;
    justify-content: center;
  }
  .nav-toggle {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
    transition: border-color .2s;
  }
  .nav-toggle span {
    width: 17px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform .25s ease, opacity .25s ease;
  }
  .nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .page-hero {
    position: relative;
    isolation: isolate;
    color: #fff;
    background:
      linear-gradient(115deg, rgba(8, 76, 57, .96) 0%, rgba(10, 35, 28, .92) 46%, rgba(10, 35, 28, .76) 100%),
      url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
    padding-top: clamp(88px, 11vw, 128px);
    padding-bottom: clamp(56px, 8vw, 96px);
    overflow: hidden;
  }
  .page-hero .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, .72fr);
    gap: clamp(36px, 7vw, 90px);
    align-items: center;
  }
  .hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .1em;
    color: rgba(255, 255, 255, .86);
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .2);
    padding: 7px 15px;
    border-radius: var(--radius-pill);
    animation: fadeUp .5s ease both;
  }
  .hero-tag::before {
    content: "";
    width: 7px;
    height: 7px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 0 5px rgba(214, 90, 43, .2);
  }
  .hero-title {
    margin-top: 24px;
    font-size: clamp(2.55rem, 5.2vw, 4.7rem);
    line-height: 1.05;
    font-weight: 800;
    letter-spacing: -0.035em;
    animation: fadeUp .55s .08s ease both;
  }
  .hero-title .accent {
    color: var(--accent);
  }
  .hero-desc {
    margin-top: 22px;
    max-width: 580px;
    font-size: 17px;
    line-height: 1.85;
    color: rgba(255, 255, 255, .78);
    animation: fadeUp .55s .16s ease both;
  }
  .hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
    animation: fadeUp .55s .24s ease both;
  }
  .hero-panel {
    animation: fadeUp .6s .32s ease both;
  }
  .hero-card {
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 28px;
    box-shadow: 0 28px 60px rgba(0, 0, 0, .2);
  }
  .hero-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
  }
  .hero-card-top span {
    font-size: 13px;
    color: rgba(255, 255, 255, .75);
  }
  .hero-card-top strong {
    font-size: 13px;
    color: #fff;
    background: var(--accent);
    padding: 4px 12px;
    border-radius: 999px;
  }
  .timer-digits {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: .02em;
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
  }
  .hero-card-divider {
    width: 100%;
    height: 1px;
    background: rgba(255, 255, 255, .18);
    margin: 20px 0;
  }
  .hero-card p {
    font-size: 13px;
    color: rgba(255, 255, 255, .72);
    line-height: 1.7;
  }
  .hero-card .btn {
    width: 100%;
    margin-top: 20px;
  }

  .stats-band {
    background: var(--deep);
    color: #fff;
    border-top: 1px solid rgba(255, 255, 255, .06);
    border-bottom: 1px solid rgba(255, 255, 255, .06);
  }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding-top: 28px;
    padding-bottom: 28px;
  }
  .stat-item {
    padding-left: 22px;
    border-left: 1px solid rgba(255, 255, 255, .16);
  }
  .stat-item strong {
    display: block;
    font-size: clamp(1.6rem, 3vw, 2.3rem);
    line-height: 1.2;
    font-weight: 800;
    color: #fff;
  }
  .stat-item strong em {
    font-style: normal;
    color: var(--accent);
  }
  .stat-item span {
    display: block;
    margin-top: 6px;
    color: rgba(255, 255, 255, .62);
    font-size: 14px;
  }

  .reasons-section {
    background: var(--bg);
    padding-top: clamp(72px, 10vw, 140px);
    padding-bottom: clamp(72px, 10vw, 140px);
  }
  .reasons-inner {
    display: grid;
    grid-template-columns: .95fr 1.4fr;
    gap: clamp(44px, 7vw, 100px);
    align-items: start;
  }
  .reasons-title {
    margin-top: 18px;
    margin-bottom: 16px;
    font-size: clamp(1.8rem, 3vw, 2.7rem);
    line-height: 1.22;
    font-weight: 780;
    letter-spacing: -0.02em;
  }
  .reasons-title .accent {
    color: var(--accent);
  }
  .reasons-intro {
    color: var(--muted);
    font-size: 16px;
    max-width: 480px;
  }
  .reasons-list {
    border-top: 1px solid var(--line);
  }
  .reason-row {
    display: grid;
    grid-template-columns: 72px 1fr auto;
    gap: 22px;
    align-items: center;
    padding: 26px 4px;
    border-bottom: 1px solid var(--line);
    transition: background .2s;
  }
  .reason-row:hover {
    background: rgba(255, 255, 255, .4);
  }
  .reason-num {
    font-size: 15px;
    font-weight: 650;
    color: var(--brand);
    letter-spacing: .04em;
  }
  .reason-copy h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 4px;
  }
  .reason-copy p {
    color: var(--muted);
    font-size: 14px;
    max-width: 620px;
    line-height: 1.7;
  }
  .reason-arrow {
    color: var(--accent);
    font-size: 18px;
    opacity: 0;
    transform: translateX(-6px);
    transition: all .2s;
  }
  .reason-row:hover .reason-arrow {
    opacity: 1;
    transform: translateX(0);
  }

  .activity-section {
    background: var(--surface);
    padding-top: clamp(72px, 10vw, 140px);
    padding-bottom: clamp(72px, 10vw, 140px);
  }
  .activity-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }
  .activity-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform .3s ease, box-shadow .3s ease;
  }
  .activity-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
  }
  .activity-media {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: var(--bg-2);
  }
  .activity-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
  }
  .activity-card:hover .activity-media img {
    transform: scale(1.02);
  }
  .activity-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, .22) 100%);
  }
  .card-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 2;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    background: rgba(10, 35, 28, .72);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, .2);
    padding: 5px 12px;
    border-radius: 999px;
  }
  .activity-body {
    flex: 1;
    padding: 24px 26px 26px;
    display: flex;
    flex-direction: column;
  }
  .activity-body h3 {
    font-size: 20px;
    font-weight: 750;
    letter-spacing: -0.01em;
    line-height: 1.3;
    margin-bottom: 10px;
  }
  .activity-body p {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 18px;
  }
  .activity-meta {
    margin-top: auto;
    border-top: 1px dashed var(--line);
    padding-top: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
  }
  .activity-meta span {
    color: var(--muted);
    font-size: 13px;
  }
  .activity-meta a {
    color: var(--brand);
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: color .2s;
  }
  .activity-meta a:hover {
    color: var(--accent);
  }
  .activity-meta a i {
    font-style: normal;
    transition: transform .2s;
  }
  .activity-meta a:hover i {
    transform: translateX(4px);
  }

  .steps-section {
    background: var(--bg-2);
    padding-top: clamp(72px, 10vw, 140px);
    padding-bottom: clamp(72px, 10vw, 140px);
    border-top: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
    border-bottom: 1px solid var(--line);
  }
  .steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
  .step-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 28px 22px;
    min-height: 230px;
    position: relative;
    transition: transform .25s;
  }
  .step-card:hover {
    transform: translateY(-4px);
  }
  .step-num {
    font-size: 44px;
    font-weight: 850;
    letter-spacing: -0.04em;
    color: rgba(14, 107, 82, .18);
    line-height: 1;
    margin-bottom: 18px;
  }
  .step-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
  }
  .step-card p {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.72;
  }

  .rule-section {
    background: var(--deep);
    color: #fff;
    padding-top: clamp(72px, 10vw, 140px);
    padding-bottom: clamp(72px, 10vw, 140px);
    position: relative;
    isolation: isolate;
  }
  .rule-section::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
    opacity: .14;
  }
  .rule-grid {
    display: grid;
    grid-template-columns: .85fr 1.6fr;
    gap: clamp(40px, 7vw, 100px);
  }
  .rule-head h2 {
    margin: 18px 0 14px;
    font-size: clamp(1.9rem, 3vw, 2.7rem);
    line-height: 1.2;
    font-weight: 780;
  }
  .rule-head p {
    color: rgba(255, 255, 255, .64);
  }
  .rule-body {
    border-top: 1px solid rgba(255, 255, 255, .16);
  }
  .rule-row {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 22px;
    border-bottom: 1px solid rgba(255, 255, 255, .14);
    padding: 26px 0;
  }
  .rule-row i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(214, 90, 43, .9);
    color: #fff;
    font-style: normal;
    font-weight: 700;
    font-size: 15px;
  }
  .rule-row h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 6px;
  }
  .rule-row p {
    color: rgba(255, 255, 255, .7);
    font-size: 14px;
    line-height: 1.8;
    max-width: 720px;
  }

  .faq-section {
    background: var(--bg);
    padding-top: clamp(72px, 10vw, 140px);
    padding-bottom: clamp(72px, 10vw, 140px);
  }
  .faq-layout {
    display: grid;
    grid-template-columns: .9fr 1.5fr;
    gap: clamp(40px, 7vw, 100px);
    align-items: start;
  }
  .faq-intro h2 {
    margin: 18px 0 14px;
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    line-height: 1.2;
    font-weight: 780;
  }
  .faq-intro p {
    color: var(--muted);
  }
  .faq-list {
    border-top: 1px solid var(--line);
  }
  .faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-top: none;
  }
  .faq-item:first-child {
    border-top: 1px solid var(--line);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
  }
  .faq-item:last-child {
    border-radius: 0 0 var(--radius-md) var(--radius-md);
  }
  .faq-item.open {
    box-shadow: var(--shadow-sm);
  }
  .faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    text-align: left;
    padding: 19px 22px;
    font-size: 16px;
    font-weight: 650;
    line-height: 1.5;
    color: var(--ink);
    transition: background .2s;
  }
  .faq-q:hover {
    background: rgba(14, 107, 82, .025);
  }
  .faq-icon {
    position: relative;
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: #fff;
  }
  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 12px;
    height: 2px;
    background: var(--brand);
    border-radius: 2px;
    transform: translate(-50%, -50%);
    transition: transform .3s ease, opacity .3s ease;
  }
  .faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
  }
  .faq-item.open .faq-icon::after {
    transform: translate(-50%, -50%) rotate(0deg);
    opacity: 0;
  }
  .faq-a {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows .35s ease;
  }
  .faq-item.open .faq-a {
    grid-template-rows: 1fr;
  }
  .faq-a-inner {
    overflow: hidden;
    padding-left: 22px;
    padding-right: 22px;
  }
  .faq-a-inner p {
    padding-bottom: 22px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.85;
  }

  .cta-band {
    background:
      linear-gradient(120deg, rgba(8, 76, 57, .95), rgba(10, 35, 28, .94)),
      url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
    color: #fff;
    padding-top: clamp(80px, 10vw, 130px);
    padding-bottom: clamp(80px, 10vw, 130px);
    text-align: center;
  }
  .cta-band h2 {
    max-width: 760px;
    margin: 0 auto 18px;
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: -0.03em;
  }
  .cta-band p {
    color: rgba(255, 255, 255, .74);
    max-width: 640px;
    margin: 0 auto 30px;
    font-size: 16px;
  }
  .cta-btns {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
  }

  .site-footer {
    background: var(--deep);
    color: rgba(255, 255, 255, .7);
    padding-top: 64px;
    padding-bottom: 30px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr .8fr .8fr;
    gap: clamp(32px, 5vw, 80px);
    padding-bottom: 42px;
    border-bottom: 1px solid rgba(255, 255, 255, .12);
  }
  .footer-brand .brand .brand-texts strong {
    color: #fff;
  }
  .footer-brand .brand .brand-texts small {
    color: rgba(255, 255, 255, .55);
  }
  .footer-brand p {
    margin-top: 18px;
    max-width: 390px;
    color: rgba(255, 255, 255, .52);
    font-size: 14px;
    line-height: 1.8;
  }
  .footer-head {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 18px;
  }
  .footer-col a {
    display: inline-flex;
    padding: 5px 0;
    font-size: 14px;
    color: rgba(255, 255, 255, .62);
    transition: color .2s;
  }
  .footer-col a:hover {
    color: #fff;
  }
  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px 20px;
    padding-top: 22px;
    font-size: 13px;
    color: rgba(255, 255, 255, .4);
  }
  .footer-bottom span:last-child {
    font-size: 12px;
  }

  @keyframes fadeUp {
    from {
      opacity: 0;
      transform: translateY(16px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @media (max-width: 1280px) {
    .site-nav {
      gap: 20px;
    }
    .reason-row {
      grid-template-columns: 56px 1fr auto;
    }
  }

  @media (max-width: 1024px) {
    .site-nav {
      position: fixed;
      top: 0;
      right: 0;
      z-index: 101;
      width: min(86vw, 380px);
      height: 100vh;
      height: 100dvh;
      flex-direction: column;
      align-items: flex-start;
      justify-content: flex-start;
      gap: 4px;
      background: #fff;
      padding: 92px 30px 36px;
      border-left: 1px solid var(--line);
      box-shadow: -20px 0 50px rgba(12, 25, 21, .16);
      transform: translateX(105%);
      transition: transform .3s ease;
    }
    .site-nav::before {
      content: "快捷导航";
      display: block;
      font-size: 12px;
      letter-spacing: .12em;
      color: var(--muted);
      margin-bottom: 16px;
    }
    .site-nav.open {
      transform: none;
    }
    .site-nav > a {
      width: 100%;
      padding: 14px 0;
      font-size: 17px;
      font-weight: 600;
      color: var(--ink);
    }
    .site-nav > a.active {
      color: var(--brand);
    }
    .site-nav > a::after {
      display: none;
    }
    .nav-mobile-cta {
      display: inline-flex;
      width: 100%;
    }
    .nav-toggle {
      display: inline-flex;
    }
    .header-cta .cta-text {
      display: inline;
    }
    .page-hero .hero-grid {
      grid-template-columns: 1fr 1fr;
      gap: 44px;
    }
    .reasons-inner,
    .rule-grid,
    .faq-layout {
      grid-template-columns: 1fr;
    }
    .rule-grid {
      gap: 40px;
    }
    .steps-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
  }

  @media (max-width: 860px) {
    .page-hero .hero-grid {
      grid-template-columns: 1fr;
    }
    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 28px 16px;
    }
    .stat-item {
      padding-left: 0;
      border-left: none;
    }
    .stat-item {
      background: rgba(255, 255, 255, .04);
      border-radius: 16px;
      padding: 20px;
    }
    .activity-grid {
      grid-template-columns: 1fr;
    }
    .footer-grid {
      grid-template-columns: 1fr 1fr;
    }
    .footer-brand {
      grid-column: 1 / -1;
    }
  }

  @media (max-width: 560px) {
    .header-cta {
      display: none;
    }
    .header-inner {
      height: 60px;
    }
    .site-nav {
      padding-top: 82px;
    }
    .header-actions {
      gap: 6px;
    }
    .hero-grid {
      gap: 30px;
    }
    .hero-card {
      padding: 22px;
    }
    .hero-ctas {
      flex-direction: column;
      align-items: stretch;
    }
    .hero-ctas .btn {
      width: 100%;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .stat-item {
      margin: 0;
      padding: 18px;
    }
    .stat-item strong {
      font-size: 28px;
    }
    .stat-item span {
      font-size: 12px;
    }
    .reasons-section,
    .activity-section,
    .steps-section,
    .rule-section,
    .faq-section,
    .cta-band {
      padding-top: 72px;
      padding-bottom: 72px;
    }
    .section-head h2,
    .reasons-title,
    .rule-head h2,
    .faq-intro h2 {
      font-size: 1.75rem;
    }
    .reasons-inner,
    .faq-layout,
    .rule-grid {
      gap: 32px;
    }
    .reason-row {
      grid-template-columns: 38px 1fr;
      gap: 15px;
      padding: 22px 2px;
    }
    .reason-arrow {
      display: none;
    }
    .reason-num {
      font-size: 14px;
    }
    .activity-card {
      margin-bottom: 6px;
    }
    .activity-body {
      padding: 22px 20px;
    }
    .steps-grid {
      grid-template-columns: 1fr;
      gap: 14px;
    }
    .step-card {
      min-height: 0;
      padding: 24px 22px;
    }
    .step-num {
      font-size: 36px;
      margin-bottom: 12px;
    }
    .rule-row {
      grid-template-columns: 40px 1fr;
      gap: 16px;
      padding: 22px 0;
    }
    .rule-row i {
      width: 34px;
      height: 34px;
      font-size: 14px;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 30px;
    }
    .footer-brand {
      grid-column: auto;
    }
    .footer-bottom {
      justify-content: center;
      text-align: center;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      animation: none !important;
      transition: none !important;
    }
    html {
      scroll-behavior: auto;
    }
  }

/* roulang page: category4 */
:root {
      --bg: #F3F1EB;
      --surface: #FFFFFF;
      --surface-muted: #E9E5DC;
      --dark: #0A231C;
      --ink: #0C1915;
      --ink-weak: #5D6A64;
      --line: #E0DBD0;
      --brand: #0E6B52;
      --brand-deep: #084C39;
      --accent: #D65A2B;
      --radius-lg: 22px;
      --radius-md: 14px;
      --radius-sm: 8px;
      --radius-pill: 999px;
      --shadow-sm: 0 2px 8px rgba(12, 25, 21, 0.06);
      --shadow-md: 0 8px 28px rgba(12, 25, 21, 0.08);
      --font-main: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
      --space-section: clamp(72px, 10vw, 140px);
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-main);
      background-color: var(--bg);
      color: var(--ink);
      line-height: 1.85;
      -webkit-font-smoothing: antialiased;
    }

    body.no-scroll {
      overflow: hidden;
    }

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

    a {
      color: var(--brand);
      text-decoration: none;
      transition: color 0.2s ease;
    }

    a:hover {
      color: var(--accent);
    }

    a:focus-visible,
    button:focus-visible {
      outline: 3px solid rgba(214, 90, 43, 0.45);
      outline-offset: 2px;
      border-radius: 4px;
    }

    ul {
      list-style: none;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 48px;
    }

    @media (max-width: 1024px) {
      .container {
        padding: 0 32px;
      }
    }

    @media (max-width: 768px) {
      .container {
        padding: 0 20px;
      }
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: var(--radius-pill);
      font-weight: 600;
      font-size: 15px;
      line-height: 1;
      padding: 14px 28px;
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.25s ease;
      letter-spacing: 0.02em;
      white-space: nowrap;
    }

    .btn-accent {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 4px 14px rgba(214, 90, 43, 0.25);
    }

    .btn-accent:hover {
      background: #c24f24;
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(214, 90, 43, 0.3);
    }

    .btn-ghost {
      background: transparent;
      border-color: rgba(255, 255, 255, 0.7);
      color: #fff;
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.12);
      color: #fff;
      border-color: #fff;
    }

    .btn-outline-dark {
      background: transparent;
      border-color: var(--brand);
      color: var(--brand);
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      height: 68px;
      border-bottom: 1px solid transparent;
      transition: height 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .site-header.scrolled {
      height: 60px;
      border-bottom-color: var(--line);
      box-shadow: 0 4px 20px rgba(12, 25, 21, 0.05);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .brand-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--brand-deep);
      color: #fff;
      font-weight: 800;
      font-size: 15px;
      letter-spacing: 0.02em;
      font-family: inherit;
    }

    .brand-texts {
      display: flex;
      flex-direction: column;
      line-height: 1.2;
    }

    .brand-texts strong {
      font-size: 16px;
      font-weight: 700;
      color: var(--ink);
      letter-spacing: 0.04em;
    }

    .brand-texts small {
      font-size: 11px;
      color: var(--ink-weak);
      letter-spacing: 0.06em;
      margin-top: 1px;
    }

    .site-nav {
      display: flex;
      align-items: center;
      gap: 4px;
      margin: 0 auto;
    }

    .site-nav a {
      position: relative;
      padding: 8px 16px;
      font-size: 15px;
      font-weight: 500;
      color: var(--ink-weak);
      border-radius: var(--radius-sm);
      transition: color 0.25s ease;
      white-space: nowrap;
    }

    .site-nav a::after {
      content: "";
      position: absolute;
      left: 14px;
      bottom: 2px;
      width: 0;
      height: 2px;
      background: var(--brand);
      border-radius: 2px;
      transition: width 0.28s ease;
    }

    .site-nav a:hover {
      color: var(--ink);
    }

    .site-nav a:hover::after {
      width: calc(100% - 28px);
    }

    .site-nav a.active {
      color: var(--brand);
      font-weight: 600;
    }

    .site-nav a.active::after {
      width: calc(100% - 28px);
    }

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

    .header-cta {
      padding: 11px 22px;
    }

    .nav-mobile-cta {
      display: none !important;
    }

    .nav-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border: none;
      background: transparent;
      border-radius: 10px;
      cursor: pointer;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      padding: 0;
    }

    .nav-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      border-radius: 2px;
      background: var(--ink);
      transition: transform 0.3s ease, opacity 0.3s ease;
    }

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

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

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

    @media (max-width: 1024px) {
      .site-nav {
        position: fixed;
        inset: 0;
        background: var(--bg);
        flex-direction: column;
        justify-content: center;
        gap: 10px;
        padding: 80px 32px 40px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-12px);
        transition: opacity 0.35s ease, transform 0.35s ease, visibility 0.35s;
        z-index: 50;
        margin: 0;
      }

      .site-nav.open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
      }

      .site-nav a {
        font-size: 22px;
        padding: 12px 18px;
      }

      .site-nav a::after {
        display: none;
      }

      .site-nav a.active {
        background: rgba(14, 107, 82, 0.08);
      }

      .nav-mobile-cta {
        display: inline-flex !important;
        margin-top: 20px;
        font-size: 16px;
        background: var(--accent);
        color: #fff;
        border-radius: var(--radius-pill);
        padding: 14px 32px;
      }

      .nav-mobile-cta:hover {
        background: #c24f24;
        color: #fff;
      }

      .header-cta {
        display: none;
      }

      .nav-toggle {
        display: inline-flex;
      }
    }

    @media (max-width: 520px) {
      .site-header {
        height: 60px;
      }

      .brand-mark {
        width: 34px;
        height: 34px;
        font-size: 13px;
      }

      .brand-texts strong {
        font-size: 15px;
      }

      .brand-texts small {
        font-size: 10px;
      }
    }

    .site-footer {
      background: var(--dark);
      color: rgba(255, 255, 255, 0.75);
      padding: 64px 0 0;
      margin-top: 0;
      position: relative;
      overflow: hidden;
    }

    .site-footer .container {
      position: relative;
      z-index: 2;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-brand .brand {
      margin-bottom: 18px;
    }

    .footer-brand .brand-mark {
      background: rgba(255, 255, 255, 0.15);
    }

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

    .footer-brand .brand-texts small {
      color: rgba(255, 255, 255, 0.6);
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.6);
      max-width: 320px;
      margin-top: 14px;
      margin-bottom: 0;
    }

    .footer-head {
      font-size: 14px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      letter-spacing: 0.08em;
    }

    .footer-col ul {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-col ul a {
      color: rgba(255, 255, 255, 0.6);
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      width: fit-content;
    }

    .footer-col ul a:hover {
      color: var(--accent);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      padding: 24px 0 36px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.45);
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      margin-top: -1px;
    }

    @media (max-width: 768px) {
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

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

    .help-hero {
      background: var(--dark);
      background-image: linear-gradient(100deg, rgba(10, 35, 28, 0.96) 20%, rgba(8, 76, 57, 0.88) 90%), url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-position: center;
      color: #fff;
      padding: clamp(78px, 10vw, 130px) 0;
      position: relative;
      overflow: hidden;
    }

    .help-hero::after {
      content: "";
      position: absolute;
      width: 420px;
      height: 420px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 50%;
      top: -180px;
      right: -80px;
    }

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

    .help-hero-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #ece;
      color: rgba(255, 255, 255, 0.8);
      font-size: 13px;
      font-weight: 500;
      padding: 6px 16px;
      border-radius: var(--radius-pill);
      margin-bottom: 24px;
      backdrop-filter: blur(2px);
      letter-spacing: 0.02em;
    }

    .help-hero h1 {
      font-size: clamp(2.2rem, 5vw, 4.3rem);
      font-weight: 780;
      line-height: 1.15;
      letter-spacing: -0.01em;
      max-width: 830px;
      margin-bottom: 22px;
    }

    .help-hero p {
      font-size: clamp(16px, 1.6vw, 19px);
      color: rgba(255, 255, 255, 0.75);
      max-width: 650px;
      line-height: 1.9;
      margin-bottom: 32px;
    }

    .help-hero .hero-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }

    .help-hero .hero-meta {
      display: flex;
      gap: 30px;
      margin-top: 48px;
      padding-top: 22px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
    }

    .help-hero .hero-meta span {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.6);
    }

    @media (max-width: 768px) {
      .help-hero .hero-meta {
        flex-direction: column;
        gap: 10px;
      }
    }

    @media (max-width: 520px) {
      .help-hero .hero-actions {
        flex-direction: column;
        align-items: stretch;
      }
    }

    .help-main {
      padding: clamp(56px, 8vw, 105px) 0 var(--space-section);
    }

    .help-layout {
      display: grid;
      grid-template-columns: 250px 1fr;
      gap: 48px;
      align-items: start;
    }

    .help-aside {
      position: sticky;
      top: 100px;
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 24px 18px;
      transition: box-shadow 0.3s ease;
    }

    .help-aside-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--ink-weak);
      text-transform: uppercase;
      letter-spacing: 0.18em;
      margin-bottom: 18px;
      padding-left: 6px;
    }

    .help-anchor-list {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .help-anchor-list a {
      position: relative;
      padding: 10px 16px;
      font-size: 14px;
      font-weight: 500;
      color: var(--ink-weak);
      border-radius: 10px;
      transition: all 0.2s ease;
      border-left: 2px solid transparent;
    }

    .help-anchor-list a:hover {
      background: rgba(14, 107, 82, 0.07);
      color: var(--brand);
    }

    .help-anchor-list a.active {
      background: rgba(14, 107, 82, 0.1);
      color: var(--brand);
      font-weight: 600;
      border-left-color: var(--brand);
    }

    @media (max-width: 1024px) {
      .help-layout {
        grid-template-columns: 1fr;
      }

      .help-aside {
        position: relative;
        top: auto;
      }

      .help-anchor-list {
        flex-direction: row;
        flex-wrap: wrap;
      }

      .help-anchor-list a {
        border-left: none;
        border-radius: var(--radius-pill);
      }
    }

    .help-body {
      min-width: 0;
    }

    .help-section {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 34px 36px;
      margin-bottom: 28px;
      transition: box-shadow 0.3s ease;
    }

    .help-section:hover {
      box-shadow: var(--shadow-sm);
    }

    .help-section h2 {
      font-size: clamp(1.3rem, 2vw, 1.7rem);
      font-weight: 700;
      margin-bottom: 20px;
      padding-bottom: 18px;
      border-bottom: 1px solid var(--line);
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
    }

    .help-section h2 .h-inner {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .help-section h2 .num-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 34px;
      height: 34px;
      background: rgba(14, 107, 82, 0.1);
      color: var(--brand);
      border-radius: 10px;
      font-size: 15px;
      font-weight: 700;
      padding: 0 8px;
    }

    .help-section h2 .tag-pill {
      font-size: 12px;
      font-weight: 400;
      background: var(--surface-muted);
      color: var(--ink-weak);
      border-radius: var(--radius-pill);
      padding: 4px 12px;
      align-self: center;
    }

    .help-faq-list .faq-item {
      margin-bottom: 0;
      border-radius: 0;
      background: transparent;
    }

    .help-faq-list {
      display: flex;
      flex-direction: column;
    }

    .help-faq-list .faq-item:first-child {
      border-top: none;
    }

    .faq-item {
      position: relative;
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 0;
      overflow: hidden;
      margin-bottom: 14px;
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 18px 22px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      color: var(--ink);
      transition: background-color 0.25s ease;
    }

    .faq-question:hover {
      background: rgba(14, 107, 82, 0.04);
    }

    .faq-question::after {
      content: "";
      width: 10px;
      height: 10px;
      border-right: 2px solid var(--ink-weak);
      border-bottom: 2px solid var(--ink-weak);
      transform: rotate(45deg);
      flex-shrink: 0;
      transition: transform 0.3s ease;
      margin-top: -4px;
    }

    .faq-item.open .faq-question {
      color: var(--brand);
    }

    .faq-item.open .faq-question::after {
      transform: rotate(225deg);
      margin-top: 6px;
      border-color: var(--brand);
    }

    .faq-answer {
      max-height: 0;
      padding: 0 22px;
      overflow: hidden;
      color: var(--ink-weak);
      font-size: 14px;
      line-height: 1.8;
      transition: max-height 0.45s ease, padding 0.3s ease;
    }

    .faq-item.open .faq-answer {
      max-height: 600px;
      padding: 0 22px 20px;
    }

    .step-list {
      display: flex;
      flex-direction: column;
      gap: 0;
    }

    .step-list .step-item {
      display: flex;
      gap: 20px;
      padding: 20px 0;
      position: relative;
      border-bottom: 1px solid var(--line);
    }

    .step-list .step-item:last-child {
      border-bottom: none;
    }

    .step-num {
      display: flex;
      flex-direction: column;
      align-items: center;
      flex-shrink: 0;
    }

    .step-num span {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: rgba(14, 107, 82, 0.1);
      color: var(--brand);
      font-size: 13px;
      font-weight: 700;
    }

    .step-line {
      width: 2px;
      flex: 1;
      background: var(--line);
      border-radius: 2px;
      margin-top: 6px;
    }

    .step-item:last-child .step-line {
      display: none;
    }

    .step-content {
      flex: 1;
    }

    .step-content h4 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--ink);
    }

    .step-content p {
      font-size: 14px;
      color: var(--ink-weak);
      margin-bottom: 8px;
    }

    .step-content ol {
      padding-left: 18px;
      list-style: none;
      counter-reset: step;
    }

    .step-content ol li {
      counter-increment: step;
      position: relative;
      padding-left: 22px;
      margin-bottom: 6px;
      font-size: 14px;
      color: var(--ink-weak);
    }

    .step-content ol li::before {
      content: counter(step);
      position: absolute;
      left: 0;
      color: var(--brand);
      font-size: 12px;
      font-weight: 700;
    }

    .info-block {
      display: flex;
      gap: 16px;
      padding: 18px 20px;
      background: #F7F5F0;
      border: 1px solid var(--line);
      border-left: 3px solid var(--accent);
      border-radius: 10px;
      margin-top: 20px;
    }

    .info-block .info-icon {
      font-size: 18px;
      flex-shrink: 0;
    }

    .info-block p {
      font-size: 13px;
      color: var(--ink-weak);
    }

    @media (max-width: 768px) {
      .help-section {
        padding: 24px 20px;
      }

      .help-section h2 {
        flex-direction: column;
        gap: 8px;
      }
    }

    .contact-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
      margin-top: 24px;
    }

    .contact-card-item {
      background: #F8F6F1;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: transform 0.25s ease, border-color 0.2s ease;
    }

    .contact-card-item:hover {
      transform: translateY(-3px);
      border-color: var(--brand);
    }

    .contact-card-item .contact-icon {
      font-size: 20px;
      margin-bottom: 10px;
      display: block;
    }

    .contact-card-item h4 {
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--ink);
    }

    .contact-card-item p {
      font-size: 13px;
      color: var(--ink-weak);
      line-height: 1.6;
    }

    @media (max-width: 768px) {
      .contact-cards {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 520px) {
      .contact-cards {
        grid-template-columns: 1fr;
      }
    }

    .faq-listing {
      display: flow-root;
    }

    .status-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(14, 107, 82, 0.1);
      color: var(--brand);
      border-radius: var(--radius-pill);
      font-size: 12px;
      font-weight: 600;
      padding: 4px 12px;
      margin-right: 8px;
    }

    .status-chip.online {
      background: rgba(14, 107, 82, 0.1);
      color: var(--brand);
    }

    .status-chip.offline {
      background: rgba(214, 90, 43, 0.12);
      color: #c24f24;
    }

    .channel-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 18px;
      margin-top: 10px;
    }

    .channel-card {
      background: #F8F6F1;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 24px 22px;
      transition: transform 0.25s ease, box-shadow 0.3s ease;
    }

    .channel-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-sm);
    }

    .channel-card h3 {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .channel-card p {
      font-size: 13px;
      color: var(--ink-weak);
      line-height: 1.75;
      margin-bottom: 12px;
    }

    .channel-card a.stretched-link {
      font-size: 13px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      color: var(--brand);
    }

    .channel-card a.stretched-link:hover {
      color: var(--accent);
    }

    @media (max-width: 768px) {
      .channel-grid {
        grid-template-columns: 1fr;
      }
    }

    .notification-banner {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 22px 28px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 30px;
    }

    .notification-banner .marker {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--brand);
      display: inline-block;
      margin-right: 8px;
      box-shadow: 0 0 0 4px rgba(14, 107, 82, 0.15);
    }

    .notification-banner p {
      font-size: 15px;
      font-weight: 800;
      color: var(--ink);
      line-height: 1.5;
    }

    .notification-banner span {
      font-size: 14px;
      color: var(--ink-weak);
    }

    .notification-banner a.btn {
      font-size: 13px;
      padding: 10px 22px;
    }

    @media (max-width: 500px) {
      .notification-banner {
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
      }
    }

    .help-cta-banner {
      background: linear-gradient(135deg, #0A231C 0%, #084C39 70%, #0E6B52 100%);
      padding: clamp(54px, 7vw, 78px) 0;
      border-radius: var(--radius-lg);
      margin-top: 22px;
      position: relative;
      overflow: hidden;
    }

    .help-cta-banner .container-inner {
      background: transparent;
    }

    .help-cta-banner .cta-card {
      background: none;
      padding: clamp(36px, 5vw, 56px);
      color: rgba(255, 255, 255, 0.85);
      display: flex;
      gap: 36px;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      border-radius: var(--radius-lg);
      width: 100%;
    }

    .help-cta-banner h3 {
      font-size: clamp(1.45rem, 2.8vw, 2rem);
      font-weight: 700;
      color: #fff;
      line-height: 1.3;
    }

    .help-cta-banner p {
      font-size: 15px;
      color: rgba(255, 255, 255, 0.6);
      margin-top: 8px;
      max-width: none;
    }

    .help-cta-banner .cta-buttons {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      flex-shrink: 0;
    }

    .help-cta-banner .btn-light {
      background: #fff;
      color: var(--ink);
    }

    .help-cta-banner .btn-light:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    }

    .help-cta-banner .btn-light-ghost {
      background: transparent;
      border-color: rgba(255, 255, 255, 0.5);
      color: #fff;
    }

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

    .support-note {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-top: 20px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.5);
    }

    .text-arrow {
      display: inline-block;
      transition: transform 0.3s ease;
    }

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

    .notice-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding: 20px 0;
      border-bottom: 1px solid var(--line);
    }

    .notice-item:last-child {
      border-bottom: none;
    }

    .notice-item .notice-date {
      font-size: 13px;
      color: var(--ink-weak);
      flex-shrink: 0;
      font-weight: 600;
      min-width: 110px;
      padding-top: 2px;
    }

    .notice-item .notice-content {
      flex: 1;
    }

    .notice-item .notice-title-line {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      font-size: 15px;
      font-weight: 600;
      color: var(--ink);
    }

    .notice-item .notice-title-line .badge-mark {
      background: rgba(214, 90, 43, 0.12);
      color: var(--accent);
      padding: 2px 10px;
      border-radius: var(--radius-pill);
      font-size: 12px;
      font-weight: 500;
    }

    .notice-item p {
      font-size: 14px;
      color: var(--ink-weak);
      margin-top: 2px;
    }

    input[type="text"],
    input[type="email"] {
      width: 100%;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      padding: 10px 14px;
      font-size: 14px;
      font-family: inherit;
      background: #F9F8F5;
      transition: border-color 0.2s ease;
    }

    input:focus {
      outline: none;
      border-color: var(--brand);
    }

    .simplify-footer {
      padding: 3px 0;
    }

    .simplify-footer .credits {
      display: inline-flex;
      flex-wrap: wrap;
      gap: 6px;
      align-items: center;
    }

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
      }
    }