/* roulang page: index */
:root{
  --c-primary:#14B85F;
  --c-primary-hover:#0E9E4F;
  --c-primary-weak:#E6F7EE;
  --c-primary-line:rgba(20,184,95,.35);
  --c-accent:#CBF24C;
  --c-accent-ink:#2A3A06;
  --c-ink-bg:#0C0F0D;
  --c-ink-elev:#141917;
  --c-ink-line:rgba(255,255,255,.10);
  --c-surface:#FFFFFF;
  --c-surface-2:#F4F6F4;
  --c-line:#E3E7E4;
  --c-text:#101512;
  --c-text-2:#4A544D;
  --c-text-3:#7C877F;
  --c-text-invert:#F2F6F3;
  --c-danger:#E5484D;
  --sh-1:0 1px 2px rgba(16,21,18,.06);
  --sh-2:0 8px 24px -12px rgba(16,21,18,.18);
  --sh-3:0 18px 48px -20px rgba(16,21,18,.28);
  --sh-glow:0 0 0 1px rgba(20,184,95,.25), 0 12px 32px -16px rgba(20,184,95,.35);
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-btn:10px;
  --r-btn-lg:12px;
  --nav-w:232px;
}
@media (min-width:1440px){ :root{ --nav-w:256px; } }

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Inter','Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-text);background:var(--c-surface);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;padding:0;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}

a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid rgba(20,184,95,.6);outline-offset:2px;border-radius:6px;
}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-primary);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:999;}
.skip-link:focus{left:0;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (min-width:1536px){ .container{max-width:1280px;} }
@media (max-width:1023px){ .container{padding:0 24px;} }
@media (max-width:640px){ .container{padding:0 16px;} }

/* ---------- 左侧 App Shell 导航 ---------- */
.shell-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--c-ink-bg);border-right:1px solid var(--c-ink-line);
  display:flex;flex-direction:column;z-index:100;overflow-y:auto;
}
.side-logo{
  display:flex;align-items:center;gap:10px;height:72px;padding:0 14px;
  border-bottom:1px solid var(--c-ink-line);flex:0 0 auto;
}
.logo-mark{
  width:32px;height:32px;border-radius:8px;background:var(--c-primary);
  display:grid;place-items:center;flex:0 0 auto;
}
.logo-mark svg{width:18px;height:18px;color:#fff;}
.logo-text{
  font-weight:700;font-size:15px;color:#fff;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;letter-spacing:-.01em;
}
.side-links{display:flex;flex-direction:column;padding:12px 0;flex:1 1 auto;}
.side-link{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 16px;
  color:rgba(242,246,243,.65);font-size:14.5px;font-weight:500;
  transition:background .16s ease,color .16s ease;
}
.side-link:hover{background:rgba(255,255,255,.05);color:#fff;}
.side-link.is-active{
  background:rgba(20,184,95,.10);color:#fff;
  box-shadow:inset 3px 0 0 var(--c-primary);
}
.side-link .dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.5;flex:0 0 auto;}
.side-foot{padding:16px;border-top:1px solid var(--c-ink-line);flex:0 0 auto;}
.side-mini{display:block;margin-top:12px;font-size:12.5px;color:rgba(242,246,243,.55);transition:color .16s;}
.side-mini:hover{color:var(--c-primary);}

.main-wrap{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column;}
.main-wrap main{flex:1 1 auto;}

/* ---------- 移动端顶部栏与抽屉 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;
  background:var(--c-ink-bg);border-bottom:1px solid var(--c-ink-line);
  align-items:center;justify-content:space-between;padding:0 14px;z-index:110;
}
.topbar-logo{display:flex;align-items:center;gap:9px;min-width:0;}
.topbar-logo .logo-text{font-size:15px;}
.burger{
  width:40px;height:40px;display:grid;place-items:center;color:#fff;
  border:1px solid var(--c-ink-line);border-radius:10px;
  transition:border-color .16s ease,background .16s ease;flex:0 0 auto;
}
.burger:hover{border-color:rgba(20,184,95,.5);background:rgba(20,184,95,.10);}
.burger svg{width:20px;height:20px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:115;
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

@media (max-width:1023px){
  .topbar{display:flex;}
  .shell-nav{
    transform:translateX(-100%);width:min(280px,82vw);z-index:120;
    transition:transform .26s ease;
  }
  .shell-nav.is-open{transform:translateX(0);}
  .main-wrap{margin-left:0;padding-top:56px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-lg{padding:13px 24px;border-radius:var(--r-btn-lg);font-size:16px;}
.btn-block{display:flex;width:100%;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-text);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(20,184,95,.06);}
.btn-ghost:active{transform:translateY(1px);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.18);color:var(--c-text-invert);}
.btn-ghost-light:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(20,184,95,.10);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);
  font-size:14px;font-weight:600;transition:color .16s ease;
}
.link-arrow span{transition:transform .18s ease-out;display:inline-block;}
.link-arrow:hover{color:var(--c-primary-hover);}
.link-arrow:hover span{transform:translateX(3px);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  padding:4px 10px;font-size:12px;font-weight:600;letter-spacing:.01em;
  background:rgba(20,184,95,.10);color:var(--c-primary-hover);
}
.badge-dark{background:rgba(203,242,76,.14);color:var(--c-accent);}
.badge-neutral{background:var(--c-surface-2);color:var(--c-text-2);}

/* ---------- 首屏 Hero ---------- */
.hero{
  position:relative;background:var(--c-ink-bg);color:var(--c-text-invert);
  overflow:hidden;padding:88px 0 80px;
}
.hero-grid-deco{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero-glow{
  position:absolute;top:-120px;right:-80px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,184,95,.12),transparent 68%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;
  gap:48px;align-items:center;
}
.hero-copy h1{
  font-size:clamp(30px,4.4vw,48px);line-height:1.15;font-weight:800;
  letter-spacing:-.02em;margin:18px 0 0;color:#fff;
}
.hero-sub{
  margin-top:18px;font-size:17px;line-height:1.75;color:rgba(242,246,243,.72);max-width:30em;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.trust-row{
  display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:32px;
  padding-top:24px;border-top:1px solid var(--c-ink-line);
}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(242,246,243,.7);}
.trust-ico{
  width:18px;height:18px;border-radius:50%;display:grid;place-items:center;
  background:rgba(20,184,95,.18);color:var(--c-primary);font-size:11px;flex:0 0 auto;
}
.hero-media{position:relative;}
.hero-media-back{
  position:absolute;left:10px;top:10px;right:-10px;bottom:-10px;border-radius:16px;
  background:rgba(203,242,76,.06);border:1px solid rgba(203,242,76,.16);
}
.hero-media img{
  position:relative;z-index:2;width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:16px;box-shadow:0 0 0 1px rgba(20,184,95,.35),0 12px 32px -16px rgba(20,184,95,.35);
}
@media (max-width:1023px){
  .hero{padding:64px 0 56px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:2;}
}
@media (max-width:640px){
  .hero{padding:48px 0;}
  .hero-media-back{display:none;}
  .hero-media img{aspect-ratio:3/2;}
  .hero-cta .btn{width:100%;}
}

/* ---------- 通用板块 ---------- */
.sec{padding:88px 0;}
.sec-alt{background:var(--c-surface-2);}
.sec-dark{background:var(--c-ink-bg);color:var(--c-text-invert);}
@media (max-width:1023px){ .sec{padding:64px 0;} }
@media (max-width:640px){ .sec{padding:48px 0;} }

.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{
  font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.015em;
}
.sec-head p{margin-top:14px;font-size:16px;color:var(--c-text-2);}
.sec-dark .sec-head p{color:rgba(242,246,243,.66);}
.sec-dark .sec-head h2{color:#fff;}
.eyebrow{
  font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--c-primary);display:block;margin-bottom:12px;
}

/* ---------- 卖点条带（非等宽） ---------- */
.points-strip{
  display:grid;grid-template-columns:1.15fr 1fr .9fr;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:16px;
  box-shadow:var(--sh-1);overflow:hidden;
}
.point{padding:36px 28px;position:relative;}
.point + .point{border-left:1px solid var(--c-line);}
.point-num{
  font-size:44px;line-height:1;font-weight:800;color:rgba(20,184,95,.20);
  letter-spacing:-.03em;margin-bottom:18px;
}
.point h3{font-size:21px;line-height:1.35;font-weight:700;margin-bottom:10px;}
.point p{font-size:14.5px;line-height:1.75;color:var(--c-text-2);}
@media (max-width:1023px){
  .points-strip{grid-template-columns:1fr;}
  .point + .point{border-left:0;border-top:1px solid var(--c-line);}
}
@media (max-width:640px){ .point{padding:28px 20px;} .point-num{font-size:36px;} }

/* ---------- 场景演示 ---------- */
.scene-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:36px 0;
}
.scene-row + .scene-row{border-top:1px solid var(--c-line);}
.scene-row.is-reverse .scene-media{order:2;}
.scene-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.scene-copy h3{font-size:23px;line-height:1.35;font-weight:700;margin-bottom:14px;}
.scene-copy > p{font-size:15.5px;line-height:1.8;color:var(--c-text-2);}
.steps{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
.steps li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--c-text);}
.step-num{
  width:24px;height:24px;border-radius:50%;background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-size:12.5px;font-weight:700;flex:0 0 auto;margin-top:3px;
}
@media (max-width:1023px){
  .scene-row{grid-template-columns:1fr;gap:28px;}
  .scene-row.is-reverse .scene-media{order:0;}
  .scene-media{order:-1;}
}

/* ---------- 社会认同 ---------- */
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding-bottom:48px;border-bottom:1px solid var(--c-ink-line);
}
.stat-num{
  font-size:38px;line-height:1.1;font-weight:800;color:var(--c-accent);
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;
}
.stat-label{margin-top:10px;font-size:13px;color:rgba(242,246,243,.7);line-height:1.6;}
.quotes{display:grid;grid-template-columns:7fr 5fr;gap:24px;margin-top:48px;}
.quote{
  background:var(--c-ink-elev);border:1px solid var(--c-ink-line);
  border-radius:14px;padding:28px 26px;box-shadow:var(--sh-glow);
}
.quote p{font-size:15px;line-height:1.8;color:rgba(242,246,243,.86);}
.quote footer{margin-top:16px;font-size:12.5px;color:rgba(242,246,243,.5);letter-spacing:.02em;}
@media (max-width:1023px){
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .quotes{grid-template-columns:1fr;}
}
@media (max-width:640px){ .stat-num{font-size:30px;} }

/* ---------- 最新信息（CMS 区） ---------- */
.sec-news{padding:88px 0;background:var(--c-surface-2);}
@media (max-width:1023px){ .sec-news{padding:64px 0;} }
@media (max-width:640px){ .sec-news{padding:48px 0;} }
.sec-news-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:36px;
}
.sec-news-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.015em;}
.sec-news-head p{margin-top:12px;font-size:15.5px;color:var(--c-text-2);}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.news-card:hover{border-color:var(--c-primary-line);box-shadow:var(--sh-2);transform:translateY(-2px);}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.news-title{
  font-size:17px;line-height:1.45;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title a:hover{color:var(--c-primary-hover);}
.news-sum{
  font-size:14px;line-height:1.65;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.news-time{font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;}
.news-empty{
  min-height:200px;border:1px dashed #D6DCD8;border-radius:var(--r-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:36px 20px;text-align:center;background:#fff;
}
.news-empty svg{width:40px;height:40px;color:var(--c-text-3);opacity:.6;}
.news-empty p{font-size:14px;color:var(--c-text-3);}
@media (max-width:1023px){
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .sec-news-head{flex-direction:column;align-items:flex-start;}
}
@media (max-width:640px){ .news-grid{grid-template-columns:1fr;} }

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line);max-width:920px;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;text-align:left;font-size:16px;font-weight:600;color:var(--c-text);
  transition:color .16s ease;
}
.faq-q:hover{color:var(--c-primary-hover);}
.faq-ico{position:relative;width:16px;height:16px;flex:0 0 auto;}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;background:var(--c-text-2);border-radius:2px;
  transition:transform .22s ease,background .22s ease;
}
.faq-ico::before{left:0;top:7px;width:16px;height:2px;}
.faq-ico::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .faq-ico::before{background:var(--c-primary);}
.faq-item.is-open .faq-ico::after{transform:scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a-inner{
  padding:16px 18px 22px;font-size:15px;line-height:1.75;color:var(--c-text-2);
  background:var(--c-surface-2);border-radius:10px;
}
@media (max-width:640px){ .faq-q{padding:16px 0;font-size:15px;} .faq-a-inner{padding:14px 14px 18px;font-size:14.5px;} }

/* ---------- 底部 CTA ---------- */
.cta-box{
  background:rgba(20,184,95,.10);border:1px solid rgba(20,184,95,.30);
  border-radius:16px;padding:52px 40px;text-align:center;
}
.cta-box h2{font-size:clamp(23px,2.8vw,32px);line-height:1.28;font-weight:700;letter-spacing:-.015em;}
.cta-box > p{margin-top:14px;font-size:16px;color:var(--c-text-2);max-width:640px;margin-left:auto;margin-right:auto;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:26px;}
.cta-form{
  max-width:820px;margin:32px auto 0;display:flex;flex-wrap:wrap;gap:16px;
  align-items:flex-start;text-align:left;justify-content:center;
}
.field{display:flex;flex-direction:column;gap:7px;flex:1 1 190px;min-width:170px;}
.field label{font-size:13px;font-weight:600;color:var(--c-text-2);}
.field input,.field select{
  height:44px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-input);
  background:#fff;font-size:15px;transition:border-color .16s ease,box-shadow .16s ease;
  width:100%;
}
.field input::placeholder{color:var(--c-text-3);}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(20,184,95,.35);
}
.field.is-error input,.field.is-error select{border-color:var(--c-danger);}
.field-err{font-size:13px;color:var(--c-danger);min-height:0;display:none;}
.field.is-error .field-err{display:block;}
.form-submit{flex:0 0 auto;align-self:flex-start;margin-top:22px;}
.form-note{
  flex:1 1 100%;font-size:13.5px;color:var(--c-primary-hover);display:none;
  margin-top:6px;
}
.form-note.is-show{display:block;}
@media (max-width:768px){
  .cta-box{padding:36px 20px;}
  .cta-form{flex-direction:column;}
  .field{flex:1 1 auto;width:100%;}
  .form-submit{width:100%;margin-top:6px;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink-bg);color:var(--c-text-invert);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand .logo-row{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(242,246,243,.6);max-width:320px;}
.footer-col h4{font-size:13px;font-weight:600;color:rgba(242,246,243,.6);letter-spacing:.04em;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:rgba(242,246,243,.78);transition:color .16s ease;}
.footer-col a:hover{color:var(--c-primary);}
.footer-col p{font-size:14px;color:rgba(242,246,243,.6);line-height:1.8;}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--c-ink-line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(242,246,243,.45);
}
@media (max-width:1023px){ .footer-grid{grid-template-columns:1fr 1fr;} }
@media (max-width:640px){ .footer-grid{grid-template-columns:1fr;gap:28px;} .site-footer{padding-top:48px;} }

/* ---------- 底部固定转化条 ---------- */
.sticky-bar{
  position:fixed;right:24px;bottom:24px;z-index:90;
  width:380px;max-width:calc(100vw - 48px);height:56px;
  display:flex;align-items:center;gap:12px;padding:0 8px 0 20px;
  background:var(--c-ink-bg);border:1px solid rgba(20,184,95,.40);
  border-radius:999px;box-shadow:var(--sh-3);
  transform:translateY(150%);opacity:0;transition:transform .28s ease,opacity .28s ease;
}
.sticky-bar.is-show{transform:translateY(0);opacity:1;}
.sticky-text{
  flex:1 1 auto;font-size:14px;color:var(--c-text-invert);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.sticky-bar .btn{min-height:40px;padding:9px 16px;font-size:14px;}
.sticky-close{
  width:32px;height:32px;display:grid;place-items:center;border-radius:50%;
  color:rgba(242,246,243,.6);transition:background .16s ease,color .16s ease;flex:0 0 auto;
}
.sticky-close:hover{background:rgba(255,255,255,.08);color:#fff;}
.sticky-close svg{width:14px;height:14px;}
@media (max-width:1023px){
  .sticky-bar{
    left:0;right:0;bottom:0;width:100%;max-width:none;
    height:calc(64px + env(safe-area-inset-bottom));
    padding:0 12px 0 16px;padding-bottom:env(safe-area-inset-bottom);
    border-radius:0;border-left:0;border-right:0;border-bottom:0;
  }
  .sticky-text{font-size:13.5px;}
  .sticky-bar .btn{min-height:44px;padding:10px 18px;}
}

/* roulang page: article */
:root{
  --c-primary:#14B85F;
  --c-primary-hover:#0E9E4F;
  --c-primary-weak:#E6F7EE;
  --c-primary-line:rgba(20,184,95,.35);
  --c-accent:#CBF24C;
  --c-accent-ink:#2A3A06;
  --c-ink-bg:#0C0F0D;
  --c-ink-elev:#141917;
  --c-ink-line:rgba(255,255,255,.10);
  --c-surface:#FFFFFF;
  --c-surface-2:#F4F6F4;
  --c-line:#E3E7E4;
  --c-text:#101512;
  --c-text-2:#4A544D;
  --c-text-3:#7C877F;
  --c-text-invert:#F2F6F3;
  --c-danger:#E5484D;
  --sh-1:0 1px 2px rgba(16,21,18,.06);
  --sh-2:0 8px 24px -12px rgba(16,21,18,.18);
  --sh-3:0 18px 48px -20px rgba(16,21,18,.28);
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-btn:10px;
  --side-w:232px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Inter','Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-surface);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid rgba(20,184,95,.6);outline-offset:2px;border-radius:6px}

/* ---------- 布局骨架 ---------- */
.app{min-height:100vh}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  background:var(--c-ink-bg);
  border-right:1px solid var(--c-ink-line);
  display:flex;flex-direction:column;
  z-index:60;
  padding:0 0 20px;
}
.main{margin-left:var(--side-w);min-height:100vh;background:var(--c-surface)}
.container{max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 品牌 ---------- */
.brand{display:flex;align-items:center;gap:10px;height:72px;padding:0 16px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:8px;flex:0 0 32px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;letter-spacing:-.02em;
}
.brand-text{
  color:#fff;font-weight:700;font-size:16px;letter-spacing:-.01em;
  white-space:nowrap;overflow:hidden;text-overflow:clip;
}

/* ---------- 侧栏导航 ---------- */
.side-links{display:flex;flex-direction:column;padding:8px 12px;gap:2px;flex:1 1 auto;overflow-y:auto}
.side-link{
  position:relative;display:flex;align-items:center;
  height:44px;padding:0 16px;border-radius:8px;
  color:rgba(242,246,243,.65);font-size:15px;font-weight:500;
  transition:background-color .16s ease,color .16s ease;
}
.side-link:hover{background:rgba(255,255,255,.05);color:#fff}
.side-link:active{background:rgba(255,255,255,.08)}
.side-link.is-active{background:rgba(20,184,95,.10);color:#fff;font-weight:600}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary);
}
.side-foot{padding:16px 16px 0;border-top:1px solid var(--c-ink-line);margin-top:8px;display:flex;flex-direction:column;gap:8px}
.side-mini{font-size:13px;color:rgba(242,246,243,.6);transition:color .16s ease}
.side-mini:hover{color:var(--c-primary)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .16s ease,background-color .16s ease,box-shadow .16s ease,border-color .16s ease,color .16s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{border-color:var(--c-line);color:var(--c-text);background:transparent}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(20,184,95,.06)}
.btn-ghost:active{background:rgba(20,184,95,.10)}
.btn-dark{border-color:var(--c-ink-line);color:var(--c-text-invert)}
.btn-dark:hover{border-color:rgba(20,184,95,.55);color:var(--c-primary);background:rgba(20,184,95,.08)}
.btn-block{width:100%}
.btn-cta{border-radius:12px;background:linear-gradient(45deg,var(--c-primary),var(--c-primary-hover));box-shadow:0 0 0 1px rgba(203,242,76,.35)}
.btn-cta:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(203,242,76,.55),var(--sh-2)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  background:rgba(20,184,95,.10);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-neutral{background:var(--c-surface-2);color:var(--c-text-2)}

/* ---------- 顶部栏 / 抽屉（移动端） ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:70;height:56px;
  background:var(--c-ink-bg);border-bottom:1px solid var(--c-ink-line);
  align-items:center;justify-content:space-between;padding:0 12px 0 16px;
}
.topbar .brand{height:56px;padding:0}
.topbar .brand-text{font-size:15px}
.burger{
  width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  color:var(--c-text-invert);transition:background-color .16s ease;
}
.burger:hover{background:rgba(255,255,255,.06)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.5);opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;z-index:80;
}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:min(280px,82vw);background:var(--c-ink-bg);
  border-right:1px solid var(--c-ink-line);z-index:90;
  transform:translateX(-102%);transition:transform .24s ease;
  display:flex;flex-direction:column;padding-bottom:20px;
}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
body.drawer-open{overflow:hidden}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);padding:24px 0 0;flex-wrap:nowrap;overflow:hidden}
.crumb a{color:var(--c-text-3);transition:color .16s ease}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:#C7CFC9}
.crumb .now{color:var(--c-text);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}

/* ---------- 文章头部 ---------- */
.post-head-wrap{background:var(--c-surface-2);border-bottom:1px solid var(--c-line);padding-bottom:32px}
.post-head{padding-top:24px;max-width:820px}
.post-head h1{
  font-size:clamp(28px,3.6vw,42px);line-height:1.2;font-weight:800;letter-spacing:-.02em;
  margin:14px 0 16px;color:var(--c-text);
}
.post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--c-text-3)}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:#C7CFC9}

/* ---------- 文章主体 ---------- */
.article-section{padding:48px 0 72px}
.article-grid{display:grid;grid-template-columns:minmax(0,760px);justify-content:center;gap:48px}
.post-body{font-size:17px;line-height:1.9;color:var(--c-text);min-width:0;overflow-wrap:break-word}
.post-body p{margin:0 0 1.25em;color:var(--c-text-2)}
.post-body > p:first-of-type{color:var(--c-text);font-size:17px}
.post-body h2{
  font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;
  margin:2em 0 .7em;padding-left:12px;border-left:4px solid var(--c-primary);
}
.post-body h3{font-size:21px;font-weight:700;line-height:1.35;margin:1.6em 0 .6em}
.post-body h4{font-size:17px;font-weight:600;line-height:1.45;margin:1.4em 0 .5em}
.post-body ul,.post-body ol{margin:0 0 1.25em;padding-left:1.5em;line-height:1.8}
.post-body ul li{list-style:disc}
.post-body ol li{list-style:decimal}
.post-body li{margin-bottom:8px;color:var(--c-text-2)}
.post-body li::marker{color:var(--c-primary)}
.post-body strong{font-weight:700;color:var(--c-text)}
.post-body blockquote{
  margin:1.5em 0;padding:16px 20px;border-left:3px solid var(--c-primary);
  background:var(--c-primary-weak);border-radius:0 12px 12px 0;color:var(--c-text-2);
}
.post-body blockquote p:last-child{margin-bottom:0}
.post-body img{border-radius:12px;margin:1.5em auto;max-width:100%}
.post-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;transition:color .16s ease}
.post-body a:hover{color:var(--c-primary-hover)}
.post-body code{background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:6px;padding:2px 6px;font-size:14px}
.post-body pre{background:var(--c-ink-bg);color:var(--c-text-invert);border-radius:12px;padding:16px;overflow-x:auto;margin:1.5em 0}
.post-body pre code{background:none;border:0;padding:0;color:inherit}
.post-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;border:1px solid var(--c-line);border-radius:12px;overflow:hidden}
.post-body th{background:var(--c-ink-bg);color:var(--c-text-invert);text-align:left;padding:12px 14px;font-weight:600;font-size:14px}
.post-body td{padding:12px 14px;border-top:1px solid var(--c-line);color:var(--c-text-2)}
.post-body tbody tr:nth-child(even){background:var(--c-surface-2)}
.post-body figcaption,.post-body .caption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:-6px}
.post-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed #D6DCD8;border-radius:var(--r-card);background:var(--c-surface-2);
  padding:48px 24px;text-align:center;max-width:560px;margin:0 auto;
}
.empty-state svg{width:40px;height:40px;margin:0 auto 16px;color:var(--c-text-3)}
.empty-title{font-size:17px;font-weight:700;margin-bottom:8px;color:var(--c-text)}
.empty-desc{font-size:14px;color:var(--c-text-2);margin-bottom:20px}

/* ---------- 标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:40px;padding-top:24px;border-top:1px solid var(--c-line)}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  background:var(--c-surface-2);border:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-2);transition:all .16s ease;
}
.tag:hover{border-color:var(--c-primary-line);color:var(--c-primary);background:rgba(20,184,95,.06)}

/* ---------- 延伸阅读 ---------- */
.sec-related{margin-top:56px;padding-top:40px;border-top:1px solid var(--c-line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.sec-head h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;letter-spacing:-.01em}
.sec-head p{font-size:14px;color:var(--c-text-2);margin-top:6px}
.rel-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:flex;gap:14px;align-items:flex-start;padding:16px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-line)}
.rel-thumb{width:96px;height:72px;flex:0 0 96px;border-radius:10px;object-fit:cover;background:var(--c-surface-2)}
.rel-body{min-width:0}
.rel-title{font-size:15px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-date{font-size:13px;color:var(--c-text-3);margin-top:8px}

/* ---------- 文末返回 ---------- */
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px}

/* ---------- CTA ---------- */
.sec-cta{padding:0 0 80px}
.cta-box{
  background:rgba(20,184,95,.08);border:1px solid rgba(20,184,95,.30);border-radius:16px;
  padding:48px 32px;text-align:center;
}
.cta-box h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em}
.cta-box p{margin:14px auto 0;max-width:640px;font-size:15px;color:var(--c-text-2)}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:28px}

/* ---------- 页脚 ---------- */
.footer{background:var(--c-ink-bg);color:var(--c-text-invert);padding:64px 0 0;margin-left:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer h3{font-size:13px;font-weight:600;color:rgba(242,246,243,.6);letter-spacing:.06em;margin-bottom:18px}
.footer-desc{font-size:14px;color:rgba(242,246,243,.7);margin-top:14px;max-width:280px;line-height:1.8}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(242,246,243,.78);transition:color .16s ease}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:56px;padding:20px 0 28px;border-top:1px solid var(--c-ink-line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(242,246,243,.45);
}

/* ---------- 底部固定转化条 ---------- */
.sticky-bar{
  position:fixed;right:24px;bottom:24px;z-index:75;
  width:380px;max-width:calc(100vw - 32px);
  display:none;align-items:center;gap:12px;
  padding:8px 8px 8px 18px;border-radius:999px;
  background:var(--c-ink-bg);border:1px solid rgba(20,184,95,.40);
  box-shadow:0 18px 48px -20px rgba(16,21,18,.45);
  transform:translateY(12px);opacity:0;transition:opacity .24s ease,transform .24s ease;
}
.sticky-bar.is-show{display:flex;opacity:1;transform:translateY(0)}
.sticky-text{font-size:13px;color:var(--c-text-invert);flex:1 1 auto;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sticky-close{width:32px;height:32px;border-radius:999px;display:flex;align-items:center;justify-content:center;color:rgba(242,246,243,.6);transition:background-color .16s ease,color .16s ease}
.sticky-close:hover{background:rgba(255,255,255,.08);color:#fff}
.sticky-bar .btn{min-height:40px;padding:10px 18px;font-size:14px}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  :root{--side-w:256px}
}
@media (max-width:1279px){
  .rel-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-grid{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0}
  .container{padding:0 24px}
  .container{padding:0 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .article-section{padding:40px 0 56px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .rel-list{grid-template-columns:1fr}
  .cta-box{padding:36px 20px}
  .post-head h1{font-size:clamp(26px,7vw,32px)}
  .sticky-bar{
    left:0;right:0;bottom:0;width:100%;max-width:none;border-radius:0;
    border-left:0;border-right:0;border-bottom:0;
    padding:8px 12px calc(8px + env(safe-area-inset-bottom)) 16px;
  }
  .sticky-bar .btn{min-height:44px}
}
@media (max-width:519px){
  .article-section{padding:32px 0 48px}
  .rel-card{flex-direction:column}
  .rel-thumb{width:100%;height:140px;flex:0 0 auto}
}

/* roulang page: category2 */
:root{
    --c-primary:#14B85F;
    --c-primary-hover:#0E9E4F;
    --c-primary-weak:#E6F7EE;
    --c-primary-line:rgba(20,184,95,.35);
    --c-accent:#CBF24C;
    --c-accent-ink:#2A3A06;
    --c-ink-bg:#0C0F0D;
    --c-ink-elev:#141917;
    --c-ink-line:rgba(255,255,255,.10);
    --c-surface:#FFFFFF;
    --c-surface-2:#F4F6F4;
    --c-line:#E3E7E4;
    --c-text:#101512;
    --c-text-2:#4A544D;
    --c-text-3:#7C877F;
    --c-text-invert:#F2F6F3;
    --c-danger:#E5484D;
    --sh-1:0 1px 2px rgba(16,21,18,.06);
    --sh-2:0 8px 24px -12px rgba(16,21,18,.18);
    --sh-3:0 18px 48px -20px rgba(16,21,18,.28);
    --sh-ink:0 0 0 1px rgba(20,184,95,.25), 0 12px 32px -16px rgba(20,184,95,.35);
    --r-card:14px;
    --r-img:12px;
    --r-input:10px;
    --r-btn:10px;
    --r-btn-lg:12px;
    --sidebar-w:232px;
  }
  *{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:'Inter','Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--c-text);
    background:var(--c-surface);
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button,input,select{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  :focus-visible{outline:2px solid rgba(20,184,95,.6);outline-offset:2px}
  .num{font-variant-numeric:tabular-nums}

  /* ---------- layout ---------- */
  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
  @media (min-width:1536px){ .wrap{max-width:1280px} }
  @media (max-width:1023px){ .wrap{padding:0 24px} }
  @media (max-width:639px){ .wrap{padding:0 16px} }

  .page{margin-left:var(--sidebar-w)}
  @media (min-width:1440px){ :root{--sidebar-w:256px} }
  @media (max-width:1023px){ .page{margin-left:0} }

  /* ---------- sidebar (desktop) ---------- */
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
    background:var(--c-ink-bg);
    border-right:1px solid var(--c-ink-line);
    display:flex;flex-direction:column;
    z-index:50;
  }
  .brand{
    height:72px;min-height:72px;
    display:flex;align-items:center;gap:10px;
    padding:0 18px;border-bottom:1px solid var(--c-ink-line);
  }
  .brand-mark{
    width:32px;height:32px;min-width:32px;border-radius:8px;
    background:var(--c-primary);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-weight:800;font-size:15px;letter-spacing:0;
  }
  .brand-text{
    color:#fff;font-weight:700;font-size:16px;line-height:1.2;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  }
  .side-links{display:flex;flex-direction:column;gap:2px;padding:16px 12px;flex:1}
  .side-link{
    position:relative;display:flex;align-items:center;
    min-height:44px;padding:0 16px;border-radius:8px;
    color:rgba(242,246,243,.65);font-size:15px;font-weight:500;
    transition:background-color .16s ease,color .16s ease;
  }
  .side-link:hover{background:rgba(255,255,255,.05);color:rgba(242,246,243,.98)}
  .side-link:active{background:rgba(255,255,255,.08)}
  .side-link.is-active{
    background:rgba(20,184,95,.10);
    color:#fff;
  }
  .side-link.is-active::before{
    content:'';position:absolute;left:0;top:10px;bottom:10px;width:3px;
    border-radius:2px;background:var(--c-primary);
  }
  .side-foot{padding:16px;border-top:1px solid var(--c-ink-line);display:flex;flex-direction:column;gap:10px}
  .side-foot .btn{width:100%}
  .side-mini{
    font-size:12.5px;color:rgba(242,246,243,.55);
    transition:color .16s ease;padding-left:2px;
  }
  .side-mini:hover{color:var(--c-primary)}

  /* ---------- mobile bar + drawer ---------- */
  .mobile-bar{
    display:none;position:sticky;top:0;height:56px;z-index:60;
    align-items:center;justify-content:space-between;
    padding:0 16px;background:var(--c-ink-bg);
    border-bottom:1px solid var(--c-ink-line);
  }
  .mobile-bar .brand{padding:0;border:0;height:auto;min-height:auto}
  .mobile-bar .brand-text{font-size:15px}
  .burger{
    width:40px;height:40px;border:1px solid var(--c-ink-line);
    background:transparent;border-radius:9px;cursor:pointer;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    transition:border-color .16s ease,background-color .16s ease;
  }
  .burger span{display:block;width:17px;height:1.6px;background:var(--c-text-invert);border-radius:2px}
  .burger:hover{border-color:var(--c-primary-line);background:rgba(255,255,255,.05)}
  @media (max-width:1023px){ .mobile-bar{display:flex} }

  .drawer{
    position:fixed;top:0;left:0;bottom:0;
    width:min(280px,82vw);
    background:var(--c-ink-bg);
    transform:translateX(-100%);
    transition:transform .26s ease;
    z-index:90;display:flex;flex-direction:column;
  }
  .drawer.is-open{transform:translateX(0)}
  .scrim{
    position:fixed;inset:0;background:rgba(0,0,0,.5);
    opacity:0;pointer-events:none;transition:opacity .26s ease;z-index:80;
  }
  .scrim.is-open{opacity:1;pointer-events:auto}
  body.no-scroll{overflow:hidden}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:12px 20px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
    border:1px solid transparent;background:transparent;
    transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);border-radius:var(--r-btn-lg)}
  .btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--sh-2)}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
  .btn-ghost{border-color:var(--c-line);color:var(--c-text)}
  .btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(20,184,95,.06)}
  .btn-ghost:active{transform:translateY(1px)}
  .btn-invert{border-color:rgba(255,255,255,.18);color:var(--c-text-invert)}
  .btn-invert:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(20,184,95,.10)}
  .btn-sm{min-height:40px;padding:9px 16px;font-size:14px}
  .btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
  .btn-arrow{
    display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);
    font-size:14px;font-weight:600;
  }
  .btn-arrow svg{transition:transform .18s ease-out}
  .btn-arrow:hover svg{transform:translateX(3px)}

  /* ---------- badge / tag ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 10px;border-radius:999px;
    background:rgba(20,184,95,.10);color:var(--c-primary);
    font-size:12px;font-weight:600;letter-spacing:.02em;
  }
  .badge-dark{background:rgba(203,242,76,.14);color:var(--c-accent)}
  .tag{
    display:inline-flex;align-items:center;
    padding:4px 10px;border-radius:999px;
    background:var(--c-surface-2);color:var(--c-text-2);
    font-size:12px;font-weight:600;
  }
  .kicker{
    font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
    color:var(--c-text-3);
  }

  /* ---------- breadcrumb ---------- */
  .crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
  .crumb{
    display:flex;align-items:center;gap:8px;
    padding:14px 0;font-size:13px;color:var(--c-text-3);
  }
  .crumb a{transition:color .16s ease}
  .crumb a:hover{color:var(--c-primary)}
  .crumb .sep{color:#C7CFC9}
  .crumb .now{color:var(--c-text);font-weight:600;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

  /* ---------- hero ---------- */
  .hero{
    position:relative;overflow:hidden;
    background-color:var(--c-ink-bg);color:var(--c-text-invert);
  }
  .hero::before{
    content:'';position:absolute;inset:0;
    background-image:
      linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
      linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
    background-size:48px 48px;
    pointer-events:none;
  }
  .hero::after{
    content:'';position:absolute;right:-120px;top:-140px;
    width:520px;height:520px;border-radius:50%;
    background:radial-gradient(circle,rgba(20,184,95,.12),rgba(20,184,95,0) 70%);
    pointer-events:none;
  }
  .hero-grid{
    position:relative;z-index:2;
    display:grid;grid-template-columns:5fr 7fr;
    gap:56px;align-items:center;
    padding:80px 0;
  }
  .hero h1{
    font-size:clamp(30px,4.4vw,48px);line-height:1.15;font-weight:800;
    letter-spacing:-.02em;margin:18px 0 16px;
  }
  .hero-sub{
    font-size:16px;line-height:1.8;color:rgba(242,246,243,.72);
    max-width:46ch;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  .trust-row{
    display:flex;flex-wrap:wrap;gap:20px;margin-top:32px;
    padding-top:22px;border-top:1px solid var(--c-ink-line);
  }
  .trust-item{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(242,246,243,.7)}
  .trust-item svg{color:var(--c-primary);flex:none}
  .hero-media{position:relative}
  .hero-media .plate{
    position:absolute;left:14px;top:14px;right:-14px;bottom:-14px;
    border-radius:16px;background:rgba(20,184,95,.08);
  }
  .hero-media img{
    position:relative;z-index:1;
    width:100%;aspect-ratio:16/10;object-fit:cover;
    border-radius:16px;border:1px solid var(--c-primary-line);
    box-shadow:var(--sh-ink);
  }
  @media (max-width:1023px){
    .hero-grid{grid-template-columns:1fr;gap:36px;padding:56px 0 64px}
    .hero-media{order:2}
    .hero-media .plate{display:none}
    .hero-media img{aspect-ratio:3/2}
  }

  /* ---------- section frame ---------- */
  .sec{padding:88px 0}
  .sec-alt{background:var(--c-surface-2)}
  .sec-head{max-width:760px;margin-bottom:44px}
  .sec-head h2{
    font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;
    letter-spacing:-.01em;margin:14px 0 12px;
  }
  .sec-head p{color:var(--c-text-2);font-size:15.5px;line-height:1.8}
  @media (max-width:1023px){
    .sec{padding:64px 0}
    .sec-head{margin-bottom:32px}
  }
  @media (max-width:639px){
    .sec{padding:48px 0}
    .sec-head{margin-bottom:26px}
  }

  /* ---------- timeline ---------- */
  .tl{display:grid;grid-template-columns:1fr 1fr;column-gap:48px;row-gap:8px}
  .tl-item{position:relative;padding:0 0 30px 30px}
  .tl-item::before{
    content:'';position:absolute;left:5px;top:10px;bottom:-4px;width:1px;
    background:rgba(20,184,95,.25);
  }
  .tl-item:last-child::before{display:none}
  .tl-item::after{
    content:'';position:absolute;left:-1px;top:7px;width:12px;height:12px;
    border-radius:50%;background:var(--c-primary);
  }
  @media (min-width:1024px){
    .tl-item:nth-child(even){margin-top:48px}
  }
  .tl-num{
    display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;
    color:var(--c-primary);margin-bottom:6px;
  }
  .tl-item h3{font-size:21px;line-height:1.35;font-weight:700}
  .tl-item p{color:var(--c-text-2);font-size:15px;line-height:1.75;margin-top:8px;max-width:52ch}
  @media (max-width:1023px){
    .tl{grid-template-columns:1fr}
    .tl-item:nth-child(even){margin-top:0}
  }

  /* ---------- compare cards ---------- */
  .cmp-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
  .cmp-card{
    background:var(--c-surface-2);border:1px solid var(--c-line);
    border-radius:var(--r-card);padding:30px;
    transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
  }
  .cmp-card:hover{border-color:var(--c-primary-line);box-shadow:var(--sh-2);transform:translateY(-2px)}
  .cmp-card.warn{background:#fff;border-color:#E3E7E4}
  .cmp-card h3{font-size:21px;font-weight:700;margin-bottom:6px}
  .cmp-card .lead{font-size:14px;color:var(--c-text-2);margin-bottom:18px}
  .ck-list{display:flex;flex-direction:column;gap:12px}
  .ck-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:1.7;color:var(--c-text)}
  .ck{
    flex:none;width:20px;height:20px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    font-size:12px;font-weight:700;margin-top:2px;
  }
  .ck.ok{background:rgba(20,184,95,.14);color:var(--c-primary)}
  .ck.no{background:rgba(229,72,77,.12);color:var(--c-danger)}
  @media (max-width:1023px){
    .cmp-grid{grid-template-columns:1fr}
  }

  /* ---------- resource grid ---------- */
  .res-grid{display:grid;grid-template-columns:1.4fr 1fr;grid-template-rows:auto auto;gap:24px}
  .res-card{
    display:flex;flex-direction:column;overflow:hidden;
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
  }
  .res-card:hover{border-color:var(--c-primary-line);box-shadow:var(--sh-2);transform:translateY(-2px)}
  .res-card.big{grid-row:span 2}
  .res-media{position:relative;overflow:hidden}
  .res-card.big .res-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .28s ease-out}
  .res-card.big:hover .res-media img{transform:scale(1.03)}
  .res-body{padding:20px;display:flex;flex-direction:column;gap:10px}
  .res-card.big .res-body{padding:24px}
  .res-body h3{font-size:17px;font-weight:700;line-height:1.5}
  .res-card.big .res-body h3{font-size:21px}
  .res-body p{font-size:14px;line-height:1.7;color:var(--c-text-2)}
  .res-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
  .res-mini{display:flex;gap:16px;align-items:flex-start}
  .res-mini img{width:96px;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);flex:none}
  @media (max-width:1023px){
    .res-grid{grid-template-columns:1fr}
    .res-card.big{grid-row:auto}
  }
  @media (max-width:520px){
    .res-mini{flex-direction:column}
    .res-mini img{width:100%;aspect-ratio:16/9}
  }

  /* ---------- faq ---------- */
  .faq-list{border-top:1px solid var(--c-line)}
  .faq-item{border-bottom:1px solid var(--c-line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 4px;background:transparent;border:0;cursor:pointer;text-align:left;
    font-size:16px;font-weight:600;color:var(--c-text);
    transition:color .16s ease;
  }
  .faq-q:hover{color:var(--c-primary)}
  .faq-icon{
    flex:none;width:22px;height:22px;position:relative;border-radius:6px;
    border:1px solid var(--c-line);
    transition:border-color .16s ease,background-color .16s ease;
  }
  .faq-icon::before,.faq-icon::after{
    content:'';position:absolute;left:50%;top:50%;background:var(--c-text-2);
    transform:translate(-50%,-50%);
  }
  .faq-icon::before{width:10px;height:1.6px}
  .faq-icon::after{width:1.6px;height:10px;transition:opacity .2s ease}
  .faq-item.is-open .faq-icon{border-color:var(--c-primary);background:var(--c-primary-weak)}
  .faq-item.is-open .faq-icon::before{background:var(--c-primary)}
  .faq-item.is-open .faq-icon::after{opacity:0}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height .22s ease;
    background:var(--c-surface-2);
    border-radius:12px;
  }
  .faq-item.is-open .faq-a{max-height:320px}
  .faq-a-inner{padding:16px 18px;font-size:15px;line-height:1.75;color:var(--c-text-2)}
  .faq-wrap{max-width:860px}

  /* ---------- cta ---------- */
  .cta-panel{
    background:rgba(20,184,95,.12);
    border:1px solid rgba(20,184,95,.30);
    border-radius:16px;
    padding:44px;
  }
  .cta-panel h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
  .cta-panel .lead{color:var(--c-text-2);font-size:15px;margin-top:12px;max-width:60ch}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
  .cta-form{
    margin-top:32px;padding-top:28px;border-top:1px solid rgba(20,184,95,.28);
    display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:16px;align-items:end;
  }
  .field{display:flex;flex-direction:column;gap:6px}
  .field label{font-size:13px;font-weight:600;color:var(--c-text)}
  .field input,.field select{
    height:44px;padding:0 12px;border-radius:var(--r-input);
    border:1px solid var(--c-line);background:#fff;color:var(--c-text);
    font-size:15px;transition:border-color .16s ease,box-shadow .16s ease;
    width:100%;
  }
  .field input::placeholder{color:var(--c-text-3)}
  .field input:focus,.field select:focus{
    outline:none;border-color:var(--c-primary);
    box-shadow:0 0 0 2px rgba(20,184,95,.35);
  }
  .field.has-error input{border-color:var(--c-danger);box-shadow:0 0 0 2px rgba(229,72,77,.18)}
  .err{font-size:13px;color:var(--c-danger);min-height:0;display:none}
  .field.has-error .err{display:block}
  .form-msg{grid-column:1 / -1;font-size:13.5px;color:var(--c-primary-hover);min-height:20px}
  @media (max-width:1023px){
    .cta-panel{padding:30px}
    .cta-form{grid-template-columns:1fr;gap:14px}
  }
  @media (max-width:520px){
    .cta-panel{padding:22px}
    .cta-actions .btn{width:100%}
  }

  /* ---------- footer ---------- */
  .site-footer{
    background:var(--c-ink-bg);color:var(--c-text-invert);
    padding:64px 0 0;margin-top:0;
  }
  .foot-grid{
    display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
    padding-bottom:44px;
  }
  .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
  .foot-brand .brand-mark{width:32px;height:32px;border-radius:8px;background:var(--c-primary);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;color:#fff}
  .foot-brand span.name{font-size:16px;font-weight:700;color:#fff}
  .foot-grid p{font-size:14px;line-height:1.8;color:rgba(242,246,243,.62);max-width:34ch}
  .foot-title{font-size:13px;font-weight:600;color:rgba(242,246,243,.6);margin-bottom:14px}
  .foot-links{display:flex;flex-direction:column;gap:8px}
  .foot-links a{font-size:14px;line-height:2;color:rgba(242,246,243,.86);transition:color .16s ease}
  .foot-links a:hover{color:var(--c-primary)}
  .foot-bottom{
    border-top:1px solid var(--c-ink-line);
    padding:20px 0 26px;
    display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;justify-content:space-between;
  }
  .foot-bottom p{font-size:13px;color:rgba(242,246,243,.45)}
  .foot-bottom .tech{font-size:13px;color:rgba(242,246,243,.45)}
  @media (max-width:1023px){
    .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  }
  @media (max-width:639px){
    .site-footer{padding-top:48px}
    .foot-grid{grid-template-columns:1fr;gap:28px}
  }

  /* ---------- sticky cta ---------- */
  .sticky-cta{
    display:none;align-items:center;gap:12px;
    position:fixed;right:24px;bottom:24px;z-index:70;
    width:auto;max-width:380px;min-height:56px;
    padding:8px 10px 8px 18px;
    background:var(--c-ink-bg);
    border:1px solid rgba(20,184,95,.4);
    border-radius:999px;
    box-shadow:0 18px 48px -20px rgba(0,0,0,.5);
  }
  .sticky-cta.is-show{display:flex}
  .sc-text{font-size:14px;color:var(--c-text-invert);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .sc-close{
    flex:none;width:30px;height:30px;border-radius:50%;
    background:rgba(255,255,255,.06);border:1px solid var(--c-ink-line);
    color:rgba(242,246,243,.7);cursor:pointer;font-size:16px;line-height:1;
    transition:background-color .16s ease,color .16s ease;
  }
  .sc-close:hover{background:rgba(255,255,255,.12);color:#fff}
  @media (max-width:1023px){
    .sticky-cta{
      left:0;right:0;bottom:0;max-width:none;width:100%;
      border-radius:0;border-left:0;border-right:0;border-bottom:0;
      padding:10px 16px calc(10px + env(safe-area-inset-bottom));
      min-height:64px;justify-content:space-between;
    }
    .sc-text{font-size:13.5px}
  }

/* roulang page: category1 */
:root{
    --c-primary:#14B85F;
    --c-primary-hover:#0E9E4F;
    --c-primary-weak:#E6F7EE;
    --c-primary-line:rgba(20,184,95,.35);
    --c-accent:#CBF24C;
    --c-accent-ink:#2A3A06;
    --c-ink-bg:#0C0F0D;
    --c-ink-elev:#141917;
    --c-ink-line:rgba(255,255,255,.10);
    --c-surface:#FFFFFF;
    --c-surface-2:#F4F6F4;
    --c-line:#E3E7E4;
    --c-text:#101512;
    --c-text-2:#4A544D;
    --c-text-3:#7C877F;
    --c-text-invert:#F2F6F3;
    --c-danger:#E5484D;
    --r-card:14px;
    --r-img:12px;
    --r-btn:10px;
    --r-btn-lg:12px;
    --sh-1:0 1px 2px rgba(16,21,18,.06);
    --sh-2:0 8px 24px -12px rgba(16,21,18,.18);
    --sh-3:0 18px 48px -20px rgba(16,21,18,.28);
    --side-w:232px;
    --glow:0 0 0 1px rgba(20,184,95,.25), 0 12px 32px -16px rgba(20,184,95,.35);
  }
  @media (min-width:1440px){ :root{ --side-w:256px; } }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; }
  body{
    margin:0;
    font-family:'Inter','Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--c-text);
    background:var(--c-surface);
    -webkit-font-smoothing:antialiased;
  }
  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
  input,select{ font:inherit; }
  h1,h2,h3,h4{ margin:0; }
  p{ margin:0; }
  ul{ margin:0; padding:0; list-style:none; }
  :focus-visible{ outline:2px solid rgba(20,184,95,.6); outline-offset:2px; border-radius:4px; }
  .num{ font-variant-numeric:tabular-nums; }

  /* ---------- App shell ---------- */
  .app-shell{ min-height:100vh; }
  .main-wrap{ margin-left:var(--side-w); min-height:100vh; display:flex; flex-direction:column; }
  .page-container{ width:100%; max-width:1200px; margin:0 auto; padding:0 32px; }

  /* ---------- Sidebar ---------- */
  .sidebar{
    position:fixed; top:0; left:0; bottom:0; width:var(--side-w);
    background:var(--c-ink-bg);
    border-right:1px solid var(--c-ink-line);
    display:flex; flex-direction:column;
    z-index:60;
  }
  .brand{
    height:72px; flex:0 0 72px;
    display:flex; align-items:center; gap:10px;
    padding:0 16px;
    border-bottom:1px solid var(--c-ink-line);
  }
  .brand-mark{
    width:32px; height:32px; border-radius:8px; flex:0 0 32px;
    background:var(--c-primary);
    display:flex; align-items:center; justify-content:center;
    color:#fff; font-weight:800; font-size:15px;
    box-shadow:0 8px 20px -10px rgba(20,184,95,.8);
  }
  .brand-name{
    color:#fff; font-weight:700; font-size:16px; letter-spacing:-.01em;
    white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
  }
  @media (min-width:1440px){ .brand-name{ font-size:17px; } }
  .side-links{ padding:12px 8px; display:flex; flex-direction:column; gap:2px; flex:1 1 auto; overflow-y:auto; }
  .side-link{
    position:relative;
    display:flex; align-items:center;
    height:44px; padding:0 16px;
    border-radius:8px;
    color:rgba(242,246,243,.65);
    font-size:14.5px; font-weight:500;
    transition:background .16s ease, color .16s ease;
  }
  .side-link::before{
    content:""; position:absolute; left:0; top:50%; transform:translateY(-50%);
    width:3px; height:0; border-radius:0 3px 3px 0; background:var(--c-primary);
    transition:height .16s ease;
  }
  .side-link:hover{ background:rgba(255,255,255,.05); color:#fff; }
  .side-link.is-active{
    background:rgba(20,184,95,.10);
    color:#fff; font-weight:600;
  }
  .side-link.is-active::before{ height:20px; }
  .side-foot{ padding:16px; border-top:1px solid var(--c-ink-line); display:flex; flex-direction:column; gap:10px; }
  .side-mini{ font-size:12.5px; color:rgba(242,246,243,.6); transition:color .16s ease; }
  .side-mini:hover{ color:var(--c-primary); }

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    min-height:44px; padding:12px 20px;
    border-radius:var(--r-btn);
    font-size:15px; font-weight:600;
    transition:background .16s ease, color .16s ease, border-color .16s ease, transform .16s ease, box-shadow .16s ease;
    white-space:nowrap;
  }
  .btn-primary{ background:var(--c-primary); color:#fff; }
  .btn-primary:hover{ background:var(--c-primary-hover); transform:translateY(-1px); box-shadow:var(--sh-2); }
  .btn-primary:active{ transform:translateY(0); box-shadow:none; }
  .btn-lg{ border-radius:var(--r-btn-lg); padding:14px 24px; min-height:48px; }
  .btn-block{ width:100%; }
  .btn-ghost{
    border:1px solid var(--c-line); color:var(--c-text); background:transparent;
  }
  .btn-ghost:hover{ border-color:var(--c-primary); color:var(--c-primary); background:rgba(20,184,95,.06); }
  .btn-ghost-dark{ border:1px solid rgba(255,255,255,.18); color:var(--c-text-invert); }
  .btn-ghost-dark:hover{ border-color:var(--c-primary); color:var(--c-primary); background:rgba(20,184,95,.08); }
  .link-arrow{
    display:inline-flex; align-items:center; gap:6px;
    color:var(--c-primary); font-weight:600; font-size:14.5px;
  }
  .link-arrow svg{ transition:transform .16s ease; }
  .link-arrow:hover svg{ transform:translateX(3px); }

  /* ---------- Badges ---------- */
  .badge{
    display:inline-flex; align-items:center;
    padding:4px 10px; border-radius:999px;
    font-size:12px; font-weight:600; letter-spacing:.02em;
    background:rgba(20,184,95,.10); color:var(--c-primary);
  }
  .badge-dark{ background:rgba(20,184,95,.16); color:#8BE7B4; }
  .badge-neutral{ background:var(--c-surface-2); color:var(--c-text-2); }

  /* ---------- Mobile topbar ---------- */
  .topbar{
    display:none;
    position:sticky; top:0; z-index:55;
    height:56px; padding:0 16px;
    background:var(--c-ink-bg);
    border-bottom:1px solid var(--c-ink-line);
    align-items:center; justify-content:space-between;
  }
  .topbar .brand-name{ font-size:15px; }
  .burger{
    width:40px; height:40px; border-radius:10px;
    display:flex; align-items:center; justify-content:center;
    color:var(--c-text-invert); border:1px solid var(--c-ink-line);
    transition:background .16s ease, border-color .16s ease;
  }
  .burger:hover{ background:rgba(255,255,255,.06); border-color:rgba(255,255,255,.2); }
  .drawer-mask{
    position:fixed; inset:0; background:rgba(0,0,0,.5);
    opacity:0; visibility:hidden; transition:opacity .2s ease, visibility .2s ease; z-index:70;
  }
  .drawer{
    position:fixed; top:0; bottom:0; left:0; width:min(280px,82vw);
    background:var(--c-ink-bg); border-right:1px solid var(--c-ink-line);
    transform:translateX(-100%); transition:transform .24s ease;
    z-index:71; display:flex; flex-direction:column;
  }
  body.drawer-open .drawer-mask{ opacity:1; visibility:visible; }
  body.drawer-open .drawer{ transform:translateX(0); }
  body.drawer-open{ overflow:hidden; }

  /* ---------- Breadcrumb ---------- */
  .breadcrumb{
    display:flex; align-items:center; gap:8px;
    font-size:13px; color:var(--c-text-3);
    padding:20px 0 0;
    flex-wrap:wrap;
  }
  .breadcrumb a{ transition:color .16s ease; }
  .breadcrumb a:hover{ color:var(--c-primary); }
  .breadcrumb .sep{ color:#C3CBC5; }
  .breadcrumb .current{ color:var(--c-text); font-weight:600; }

  /* ---------- Banner ---------- */
  .page-banner{
    background:var(--c-ink-bg);
    position:relative; overflow:hidden;
    margin-top:20px;
    border-radius:16px;
  }
  .page-banner::before{
    content:""; position:absolute; inset:0;
    background-image:linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
                     linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size:48px 48px;
    pointer-events:none;
  }
  .page-banner::after{
    content:""; position:absolute; width:480px; height:480px; right:-120px; top:-180px;
    background:radial-gradient(circle, rgba(20,184,95,.12), transparent 68%);
    pointer-events:none;
  }
  .banner-inner{
    position:relative; z-index:2;
    display:grid; grid-template-columns:1fr 40%;
    gap:28px; align-items:center;
    min-height:224px; padding:28px 32px;
  }
  .banner-copy h1{
    font-size:clamp(26px,3vw,36px); line-height:1.2; font-weight:800;
    letter-spacing:-.02em; color:#fff; margin:12px 0 10px;
  }
  .banner-copy p{ font-size:15px; line-height:1.75; color:rgba(242,246,243,.75); max-width:56ch; }
  .banner-media{ border-radius:var(--r-img); overflow:hidden; border:1px solid rgba(20,184,95,.35); align-self:stretch; }
  .banner-media img{ width:100%; height:100%; min-height:170px; object-fit:cover; }

  /* ---------- Section basics ---------- */
  .section{ padding:64px 0; }
  .section-tight{ padding:48px 0; }
  .sec-head h2{
    font-size:clamp(22px,2.4vw,30px); font-weight:700; letter-spacing:-.01em; line-height:1.3;
  }
  .sec-head p{ margin-top:10px; font-size:15px; color:var(--c-text-2); max-width:70ch; }

  /* ---------- Anchor layout ---------- */
  .anchor-layout{
    display:grid; grid-template-columns:240px 1fr; gap:40px; align-items:start;
  }
  .anchor-nav{
    position:sticky; top:24px;
    background:var(--c-surface-2);
    border:1px solid var(--c-line);
    border-radius:var(--r-card);
    padding:18px 16px;
  }
  .anchor-nav h2{
    font-size:12px; letter-spacing:.08em; font-weight:600; text-transform:uppercase;
    color:var(--c-text-3); margin-bottom:12px;
  }
  .anchor-nav ul{ display:flex; flex-direction:column; gap:2px; }
  .anchor-nav a{
    display:block; padding:9px 10px; border-radius:8px;
    font-size:14px; color:var(--c-text-2);
    transition:background .16s ease, color .16s ease;
  }
  .anchor-nav a:hover{ background:#fff; color:var(--c-primary); box-shadow:var(--sh-1); }
  .anchor-nav a.is-current{ background:#fff; color:var(--c-text); font-weight:600; box-shadow:var(--sh-1); }

  /* ---------- Spec groups ---------- */
  .spec-group{ padding-bottom:32px; margin-bottom:32px; border-bottom:1px solid var(--c-line); scroll-margin-top:24px; }
  .spec-group:last-of-type{ border-bottom:0; margin-bottom:0; padding-bottom:0; }
  .spec-group > h2{
    font-size:21px; font-weight:700; line-height:1.35; margin-bottom:6px;
    display:flex; align-items:center; gap:10px;
  }
  .spec-group > h2 .idx{
    font-size:12px; font-weight:700; color:var(--c-accent-ink);
    background:var(--c-accent); border-radius:6px; padding:2px 7px; flex:0 0 auto;
  }
  .spec-group > .group-note{ font-size:14px; color:var(--c-text-3); margin-bottom:18px; }
  .spec-rows{ display:flex; flex-direction:column; }
  .spec-row{
    display:grid; grid-template-columns:132px 1fr; gap:20px;
    padding:14px 0; border-top:1px solid var(--c-line);
  }
  .spec-row:first-child{ border-top:1px solid var(--c-line); }
  .spec-term{ font-size:15px; font-weight:600; color:var(--c-text); }
  .spec-desc{ font-size:15px; line-height:1.75; color:var(--c-text-2); }
  .spec-desc strong{ color:var(--c-text); font-weight:600; }
  .spec-figure{ margin-top:18px; border-radius:var(--r-img); overflow:hidden; border:1px solid var(--c-line); }
  .spec-figure img{ width:100%; aspect-ratio:16/9; object-fit:cover; }
  .spec-figure figcaption{ font-size:13px; color:var(--c-text-3); padding:10px 14px; background:var(--c-surface-2); }

  .step-list{ display:flex; flex-direction:column; gap:14px; }
  .step-item{ display:flex; gap:14px; align-items:flex-start; }
  .step-num{
    flex:0 0 24px; width:24px; height:24px; border-radius:999px;
    background:var(--c-primary); color:#fff;
    font-size:12.5px; font-weight:700; display:flex; align-items:center; justify-content:center;
    margin-top:4px;
  }

  /* ---------- FAQ ---------- */
  .faq-wrap{ max-width:860px; }
  .faq-item{ border-bottom:1px solid var(--c-line); }
  .faq-q{
    width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px;
    padding:18px 0; text-align:left;
    font-size:16px; font-weight:600; color:var(--c-text);
    transition:color .16s ease;
  }
  .faq-q:hover{ color:var(--c-primary); }
  .faq-icon{ position:relative; flex:0 0 20px; width:20px; height:20px; }
  .faq-icon::before,.faq-icon::after{
    content:""; position:absolute; background:var(--c-primary); border-radius:2px;
    transition:transform .22s ease, opacity .22s ease;
  }
  .faq-icon::before{ left:0; top:9px; width:20px; height:2px; }
  .faq-icon::after{ left:9px; top:0; width:2px; height:20px; }
  .faq-item.is-open .faq-icon::after{ transform:scaleY(0); opacity:0; }
  .faq-a{
    max-height:0; overflow:hidden;
    transition:max-height .22s ease;
  }
  .faq-a-inner{
    padding:0 0 20px; font-size:15px; line-height:1.75; color:var(--c-text-2);
    max-width:66ch;
  }
  .faq-item.is-open .faq-a{ max-height:420px; }

  /* ---------- CTA ---------- */
  .cta-block{
    border:1px solid rgba(20,184,95,.30);
    background:rgba(20,184,95,.07);
    border-radius:16px;
    padding:40px 32px;
    text-align:center;
  }
  .cta-block h2{ font-size:clamp(22px,2.6vw,30px); font-weight:700; letter-spacing:-.01em; }
  .cta-block p{ margin-top:12px; font-size:15px; color:var(--c-text-2); max-width:62ch; margin-left:auto; margin-right:auto; }
  .cta-actions{ margin-top:24px; display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }

  /* ---------- Footer ---------- */
  .site-footer{ background:var(--c-ink-bg); color:var(--c-text-invert); margin-top:56px; }
  .footer-grid{
    display:grid; grid-template-columns:1.4fr 1fr 1fr 1.1fr; gap:32px;
    padding:56px 0 32px;
  }
  .footer-brand .brand-name{ font-size:16px; }
  .footer-desc{ margin-top:14px; font-size:13.5px; line-height:1.8; color:rgba(242,246,243,.6); max-width:34ch; }
  .footer-col h3{ font-size:13px; letter-spacing:.06em; font-weight:600; color:rgba(242,246,243,.6); margin-bottom:14px; }
  .footer-col ul{ display:flex; flex-direction:column; gap:10px; }
  .footer-col a{ font-size:14px; color:rgba(242,246,243,.82); transition:color .16s ease; }
  .footer-col a:hover{ color:var(--c-primary); }
  .footer-col p{ font-size:14px; color:rgba(242,246,243,.82); line-height:2; }
  .footer-bottom{
    border-top:1px solid var(--c-ink-line);
    padding:18px 0 26px;
    font-size:13px; color:rgba(242,246,243,.45);
    display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap;
  }

  /* ---------- Floating convert bar ---------- */
  .float-bar{
    position:fixed; right:24px; bottom:24px; z-index:80;
    width:380px; max-width:calc(100vw - 48px);
    background:var(--c-ink-bg);
    border:1px solid rgba(20,184,95,.40);
    border-radius:999px;
    padding:8px 8px 8px 20px;
    display:flex; align-items:center; gap:12px;
    box-shadow:var(--sh-3);
    transform:translateY(24px); opacity:0; visibility:hidden;
    transition:opacity .22s ease, transform .22s ease, visibility .22s ease;
  }
  .float-bar.is-show{ opacity:1; visibility:visible; transform:translateY(0); }
  .float-bar span{ font-size:14px; color:var(--c-text-invert); flex:1 1 auto; }
  .float-bar .btn{ min-height:40px; padding:8px 16px; font-size:14px; border-radius:999px; }
  .float-close{
    width:32px; height:32px; border-radius:999px; flex:0 0 32px;
    color:rgba(242,246,243,.6); display:flex; align-items:center; justify-content:center;
    transition:background .16s ease, color .16s ease;
  }
  .float-close:hover{ background:rgba(255,255,255,.08); color:#fff; }

  /* ---------- Responsive ---------- */
  @media (max-width:1279px){
    .page-container{ padding:0 24px; }
    .anchor-layout{ grid-template-columns:210px 1fr; gap:28px; }
  }
  @media (max-width:1023px){
    .sidebar{ display:none; }
    .topbar{ display:flex; }
    .main-wrap{ margin-left:0; }
    .page-container{ padding:0 24px; }
    .section{ padding:64px 0; }
    .anchor-layout{ grid-template-columns:1fr; gap:24px; }
    .anchor-nav{ position:static; }
    .anchor-nav ul{
      flex-direction:row; flex-wrap:nowrap; overflow-x:auto; gap:8px;
      padding-bottom:4px; -webkit-overflow-scrolling:touch;
    }
    .anchor-nav ul::-webkit-scrollbar{ height:4px; }
    .anchor-nav ul::-webkit-scrollbar-thumb{ background:rgba(20,184,95,.35); border-radius:99px; }
    .anchor-nav a{ white-space:nowrap; background:#fff; box-shadow:var(--sh-1); }
    .banner-inner{ grid-template-columns:1fr; padding:26px 24px; min-height:0; }
    .banner-media{ order:2; }
    .banner-media img{ min-height:150px; aspect-ratio:16/9; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:28px; padding:48px 0 28px; }
    .float-bar{
      right:0; left:0; bottom:0; width:100%; max-width:none;
      border-radius:0; border-left:0; border-right:0; border-bottom:0;
      padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    }
    .float-bar .btn{ min-height:44px; }
  }
  @media (max-width:767px){
    .page-container{ padding:0 16px; }
    .section{ padding:48px 0; }
    .section-tight{ padding:40px 0; }
    .spec-row{ grid-template-columns:1fr; gap:6px; padding:14px 0; }
    .spec-term{ font-size:15px; }
    .cta-block{ padding:28px 20px; }
    .footer-grid{ grid-template-columns:1fr; }
    .footer-bottom{ flex-direction:column; }
    .banner-copy h1{ font-size:26px; }
  }
  @media (max-width:519px){
    .cta-actions .btn{ width:100%; }
    .float-bar span{ font-size:13px; }
  }