/* roulang page: index */
:root{
  --green:#0F8A57;
  --green-dark:#0A6B44;
  --green-soft:rgba(15,138,87,.08);
  --orange:#FF6A1F;
  --orange-dark:#E85A12;
  --cyan:#14C7C0;
  --bg:#F6F8F6;
  --card:#FFFFFF;
  --dark:#0B1210;
  --ink:#131A17;
  --ink-2:#4B5A53;
  --ink-3:#7C8A83;
  --line:#E2E8E3;
  --line-soft:#EEF2EF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,18,16,.05),0 8px 24px rgba(11,18,16,.06);
  --sh-2:0 2px 4px rgba(11,18,16,.06),0 14px 32px rgba(11,18,16,.10);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"Barlow Condensed",Menlo,Consolas,monospace;
  --sec-pad:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--green-dark);text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out}
a:hover{color:var(--green)}
h1,h2,h3{margin:0;line-height:1.25}
h1{font-weight:800;letter-spacing:-.02em;font-size:clamp(2.1rem,3.6vw,3.4rem);line-height:1.15}
h2{font-weight:700;font-size:clamp(1.6rem,2.3vw,2.1rem)}
h3{font-weight:600;font-size:1.2rem;line-height:1.4}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sec-pad) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head p{margin-top:10px;color:var(--ink-2);max-width:640px}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--cyan);
  margin-bottom:16px;
}
.text-link{font-size:14px;font-weight:600;color:var(--green-dark);display:inline-flex;align-items:center;gap:6px}
.text-link:hover{gap:10px}
.text-link::after{content:"→";font-family:var(--mono)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 28px;border-radius:var(--r-btn);border:none;
  font-weight:600;font-size:15.5px;cursor:pointer;
  transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;border-bottom:2px solid var(--orange-dark)}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(232,90,18,.28)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.72)}
.btn-ghost:hover{background:rgba(255,255,255,.10);color:#fff;border-color:#fff}
.btn-ghost-dark{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost-dark:hover{background:rgba(15,138,87,.08);color:var(--green-dark);border-color:var(--green-dark)}
.btn-block{width:100%}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--green-soft);color:var(--green-dark);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-cyan{background:rgba(20,199,192,.12);color:#0B8F8A}
.badge-orange{background:rgba(255,106,31,.12);color:var(--orange-dark)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--dark);
  transition:background-color .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{background:#fff;border-bottom:1px solid var(--line);box-shadow:0 6px 20px rgba(11,18,16,.06)}
.nav-wrap{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  height:72px;
  gap:16px;
}
.nav-side{display:flex;align-items:center;gap:6px}
.nav-side.left{justify-content:flex-start}
.nav-side.right{justify-content:flex-end}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:14.5px;
  font-weight:500;
  color:rgba(255,255,255,.78);
  white-space:nowrap;
}
.nav-link:hover{color:#fff}
.nav-link.active{color:#fff;font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--green);border-radius:2px;
}
.site-header.is-scrolled .nav-link{color:var(--ink-2)}
.site-header.is-scrolled .nav-link:hover{color:var(--ink)}
.site-header.is-scrolled .nav-link.active{color:var(--green-dark)}
.brand{display:flex;align-items:center;gap:10px;justify-self:center}
.brand-mark{position:relative;width:28px;height:26px;flex:0 0 28px}
.brand-mark i{
  position:absolute;left:0;width:28px;height:3px;border-radius:2px;
  background:var(--orange);transform:skewX(-24deg);
}
.brand-mark i:nth-child(1){top:3px;width:24px;background:var(--green)}
.brand-mark i:nth-child(2){top:11px;width:28px;background:var(--orange)}
.brand-mark i:nth-child(3){top:19px;width:19px;background:var(--cyan)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.02em;color:#fff}
.brand-sub{font-size:10.5px;letter-spacing:.16em;color:rgba(255,255,255,.55);margin-top:2px}
.site-header.is-scrolled .brand-name{color:var(--ink)}
.site-header.is-scrolled .brand-sub{color:var(--ink-3)}
.nav-toggle{
  display:none;width:44px;height:44px;border:none;background:transparent;
  border-radius:var(--r-btn);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease-out,background-color .2s ease-out;
}
.nav-toggle span{position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-active span{background:transparent}
.nav-toggle.is-active span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-active span::after{transform:translateY(-6px) rotate(-45deg)}
.site-header.is-scrolled .nav-toggle span,
.site-header.is-scrolled .nav-toggle span::before,
.site-header.is-scrolled .nav-toggle span::after{background:var(--ink)}
.mobile-panel{
  position:fixed;left:0;right:0;top:60px;z-index:59;
  background:var(--dark);
  border-top:1px solid rgba(255,255,255,.10);
  padding:8px 16px 20px;
  transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.mobile-panel.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.mobile-panel a{
  display:flex;align-items:center;height:48px;
  color:rgba(255,255,255,.86);font-size:15.5px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.mobile-panel a:last-child{border-bottom:none}
.mobile-panel a.active{color:#fff;font-weight:600}
.mobile-panel a.active::before{
  content:"";width:3px;height:16px;background:var(--green);border-radius:2px;margin-right:10px;
}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;background:var(--dark);color:#fff;
  padding:76px 0 88px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 2px,transparent 2px 28px);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:-10%;bottom:-160px;width:60%;height:320px;
  background:radial-gradient(closest-side,rgba(15,138,87,.35),transparent);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.hero-copy{max-width:640px}
.hero h1{color:#fff}
.hero-sub{
  margin-top:22px;font-size:clamp(1rem,1.4vw,1.15rem);
  color:rgba(255,255,255,.76);max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.trust-row{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72)}
.trust-row svg{flex:0 0 16px;color:var(--cyan)}
.hero-visual{position:relative}
.hero-figure{
  position:relative;border-radius:16px;overflow:hidden;
  aspect-ratio:16/10;background:rgba(15,138,87,.18);
  box-shadow:0 20px 48px rgba(0,0,0,.35);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;left:0;right:22%;bottom:0;height:6px;background:var(--orange);
  transform:skewX(-24deg);transform-origin:left bottom;
}
.hero-float{
  background:#fff;color:var(--ink);border-radius:12px;
  padding:16px 18px;box-shadow:var(--sh-2);
  position:absolute;left:-18px;bottom:-26px;width:270px;
}
.hero-float li{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-2);padding:5px 0}
.hero-float li strong{font-family:var(--mono);font-size:15px;color:var(--green-dark);font-weight:700}
.hero-float li + li{border-top:1px solid var(--line-soft)}
.hero-float-list{display:none}

/* ---------- 步骤 ---------- */
.steps-track{display:flex;align-items:flex-start;gap:14px}
.step{flex:1 1 0;min-width:0}
.step-num{
  width:44px;height:44px;border-radius:50%;
  border:2px solid var(--green);color:var(--green-dark);
  font-family:var(--mono);font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  background:#fff;
}
.step h3{margin:18px 0 8px}
.step p{color:var(--ink-2);font-size:15px}
.dash{
  flex:0 0 56px;height:2px;margin-top:21px;
  background-image:repeating-linear-gradient(90deg,var(--green) 0 8px,transparent 8px 16px);
}
.step-arrow{color:var(--orange);font-family:var(--mono);font-size:20px;margin-top:14px}

/* ---------- 案例 ---------- */
.case-row{align-items:center;margin-bottom:72px}
.case-row:last-child{margin-bottom:0}
.case-media{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:var(--green-soft)}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease-out}
.case-media:hover img{transform:scale(1.03)}
.case-body h3{margin:16px 0 12px;font-size:1.3rem}
.case-body p{color:var(--ink-2);font-size:15.5px}
.case-stats{display:flex;gap:40px;margin:24px 0 20px}
.case-stats .num{font-family:var(--mono);font-size:clamp(2rem,3vw,2.5rem);font-weight:700;color:var(--green-dark);line-height:1}
.case-stats .cap{font-size:12px;color:var(--ink-3);margin-top:6px}

/* ---------- FAQ ---------- */
.faq-lead h2{margin-bottom:16px}
.faq-lead p{color:var(--ink-2);font-size:15.5px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--card);border-radius:var(--r-card);box-shadow:var(--sh-1);
  overflow:hidden;position:relative;transition:box-shadow .18s ease-out;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--green);border-radius:3px;
  transform:scaleY(0);transform-origin:top;transition:transform .22s ease-out;
}
.faq-item[open]::before{transform:scaleY(1)}
.faq-item[open]{box-shadow:var(--sh-2)}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 22px;
  transition:background-color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#F1F5F2}
.faq-item summary h3{font-size:1.02rem;font-weight:600;margin:0}
.faq-icon{
  flex:0 0 22px;height:22px;border-radius:50%;
  border:1.5px solid var(--green);color:var(--green-dark);
  font-family:var(--mono);font-size:14px;line-height:19px;text-align:center;
  transition:background-color .18s ease-out,color .18s ease-out;
}
.faq-item[open] .faq-icon{background:var(--green);color:#fff;border-color:var(--green)}
.faq-body{
  padding:0 22px 20px 22px;color:var(--ink-2);font-size:15.5px;
  border-top:1px solid rgba(15,138,87,.6);margin-top:0;
}
.faq-body p{padding-top:16px}

/* ---------- 最新信息 ---------- */
.news-grid{display:flex;flex-direction:column;gap:24px}
.news-card{
  background:var(--card);border-radius:var(--r-card);box-shadow:var(--sh-1);
  overflow:hidden;transition:transform .25s ease-out,box-shadow .25s ease-out;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--green-soft)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:24px}
.news-title{font-size:1.22rem;font-weight:700;margin:14px 0 10px}
.news-title a{color:var(--ink)}
.news-title a:hover{color:var(--green-dark)}
.news-excerpt{
  color:var(--ink-2);font-size:15px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;gap:10px;margin-top:18px;
  font-size:12.5px;color:var(--ink-3);font-family:var(--mono);
}
.news-mini{
  display:flex;flex-direction:column;gap:20px;height:100%;
}
.mini-card{
  background:var(--card);border-top:1px solid var(--line-soft);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:22px 24px;flex:1;
  transition:transform .25s ease-out,box-shadow .25s ease-out;
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.mini-card h3{font-size:1.05rem;font-weight:700;margin:12px 0 8px}
.mini-card h3 a{color:var(--ink)}
.mini-card h3 a:hover{color:var(--green-dark)}
.mini-card p{
  color:var(--ink-2);font-size:14.5px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.news-empty{
  background:var(--card);border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:64px 24px;text-align:center;
}
.news-empty svg{width:64px;height:64px;color:var(--green);opacity:.7;margin-bottom:16px}
.news-empty p{color:var(--ink-2);margin-bottom:14px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--dark);color:#fff;
  padding:80px 0;
}
.cta-band::before{
  content:"";position:absolute;top:-40px;right:6%;width:220px;height:340px;
  background:repeating-linear-gradient(45deg,rgba(255,106,31,.22) 0 10px,transparent 10px 26px);
  transform:rotate(0deg);pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;bottom:-60px;left:12%;width:160px;height:260px;
  background:repeating-linear-gradient(45deg,rgba(255,106,31,.16) 0 8px,transparent 8px 22px);
  pointer-events:none;
}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{color:#fff}
.cta-band .cta-text{color:rgba(255,255,255,.74);margin-top:16px;font-size:15.5px;max-width:440px}
.form-card{
  background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-2);color:var(--ink);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px}
.field input{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid #D5DED8;background:#fff;color:var(--ink);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field input::placeholder{color:#A8B4AD}
.field input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(15,138,87,.15)}
.cta-notes{display:flex;flex-wrap:wrap;gap:20px;margin-top:22px}
.cta-notes li{font-size:12.5px;color:rgba(255,255,255,.6);display:flex;align-items:center;gap:8px}
.cta-notes li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-name{font-size:18px}
.footer-desc{margin-top:18px;font-size:14px;color:rgba(255,255,255,.55);max-width:280px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);
}
.footer-social a:hover{border-color:var(--green);color:#fff;background:rgba(15,138,87,.22)}
.footer-title{font-size:13px;color:rgba(255,255,255,.45);letter-spacing:.08em;margin-bottom:16px;font-weight:600}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;transition:transform .18s ease-out,color .18s ease-out}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-contact li{font-size:14px;margin-bottom:12px;color:rgba(255,255,255,.66)}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.5);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.site-footer .brand-sub{color:rgba(255,255,255,.45)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  :root{--sec-pad:64px}
  .container{padding:0 24px}
  .nav-side{display:none}
  .nav-wrap{grid-template-columns:44px 1fr 44px;height:60px}
  .nav-toggle{display:flex;justify-self:start}
  .brand{grid-column:2;justify-self:center}
  .hero{padding:56px 0 72px}
  .hero-visual{margin-top:56px}
  .hero-float{position:static;width:100%;margin-top:20px;left:auto;bottom:auto}
  .hero-float-list{display:none}
  .steps-track{flex-direction:column;gap:0}
  .step{display:grid;grid-template-columns:44px 1fr;column-gap:16px;padding-bottom:32px;position:relative}
  .step::before{
    content:"";position:absolute;left:21px;top:46px;bottom:0;width:2px;
    background:repeating-linear-gradient(180deg,var(--green) 0 8px,transparent 8px 16px);
  }
  .step:last-child{padding-bottom:0}
  .step:last-child::before{display:none}
  .step h3{margin:8px 0 6px;grid-column:2}
  .step p{grid-column:2}
  .dash,.step-arrow{display:none}
  .case-row{margin-bottom:56px}
  .case-row .case-media{margin-bottom:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}
@media screen and (max-width:639px){
  :root{--sec-pad:52px}
  body{font-size:16px}
  .container{padding:0 16px}
  .hero{padding:44px 0 60px}
  .hero-actions .btn{width:100%}
  .trust-row{gap:14px}
  .case-stats{gap:28px}
  .news-body,.mini-card{padding:20px}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .faq-item summary{padding:14px 16px;align-items:flex-start}
  .faq-item summary h3{font-size:.98rem;line-height:1.5}
  .faq-body{padding:0 16px 18px}
}
@media screen and (min-width:1440px){
  .container{max-width:1280px}
}

/* roulang page: category1 */
:root{
  --brand:#0F8A57;
  --brand-dark:#0A6B44;
  --brand-soft:rgba(15,138,87,.08);
  --accent:#FF6A1F;
  --accent-dark:#E85A12;
  --cyan:#14C7C0;
  --bg:#F6F8F6;
  --card:#FFFFFF;
  --dark:#0B1210;
  --ink:#131A17;
  --ink-2:#4B5A53;
  --ink-3:#7C8A83;
  --line:#E2E8E3;
  --line-soft:#EEF2EF;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:8px;
  --shadow-1:0 1px 2px rgba(11,18,16,.05),0 8px 24px rgba(11,18,16,.06);
  --shadow-2:0 2px 4px rgba(11,18,16,.06),0 14px 32px rgba(11,18,16,.10);
  --mono:"Barlow Condensed",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
h1{font-size:clamp(2.1rem,3.6vw,3.4rem);font-weight:800;line-height:1.15;letter-spacing:-.02em;}
h2{font-size:clamp(1.6rem,2.3vw,2.1rem);font-weight:700;line-height:1.25;letter-spacing:-.01em;}
h3{font-size:1.18rem;font-weight:600;line-height:1.4;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-dark);}
img{display:block;max-width:100%;height:auto;border-radius:var(--radius-img);}
button,input{font-family:inherit;font-size:inherit;}
ul,ol{padding-left:0;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (min-width:1440px){.container{max-width:1280px;}}
.grid-x{margin-left:-12px;margin-right:-12px;}
.grid-x > .cell{padding-left:12px;padding-right:12px;}

/* ===== 按钮 / 徽章 / 标签 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;letter-spacing:.01em;
  border:1.5px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 2px 0 var(--accent-dark);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 2px 0 var(--accent-dark),0 12px 26px rgba(232,90,18,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 0 var(--accent-dark);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:rgba(15,138,87,.06);border-color:var(--brand-dark);color:var(--brand-dark);}
.btn-ghost.on-dark{border-color:rgba(255,255,255,.75);color:#fff;}
.btn-ghost.on-dark:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}
.btn-block{width:100%;}
.badge{
  display:inline-block;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:var(--brand-soft);color:var(--brand-dark);
}
.badge.accent{background:rgba(255,106,31,.10);color:#C24A0B;}
.badge.cyan{background:rgba(20,199,192,.14);color:#0E8F89;}
.eyebrow{
  font-size:13px;font-weight:600;letter-spacing:.12em;
  color:var(--cyan);margin-bottom:14px;
}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--brand);}
.link-arrow:hover{color:var(--brand-dark);gap:10px;}

/* ===== 顶部导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:background-color .2s ease,box-shadow .2s ease,border-color .2s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:#fff;border-bottom-color:var(--line);
  box-shadow:0 1px 2px rgba(11,18,16,.05),0 8px 24px rgba(11,18,16,.05);
}
.nav-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:72px;
}
.nav-side{display:flex;align-items:center;gap:30px;}
.nav-side.left{grid-column:1;justify-content:flex-start;}
.nav-side.right{grid-column:3;justify-content:flex-end;}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;
  color:rgba(255,255,255,.86);white-space:nowrap;
}
.nav-link:hover{color:#fff;}
.nav-link.active{color:#fff;}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--accent);border-radius:2px;
}
.site-header.is-scrolled .nav-link{color:var(--ink-2);}
.site-header.is-scrolled .nav-link:hover{color:var(--brand-dark);}
.site-header.is-scrolled .nav-link.active{color:var(--brand-dark);}
.brand{display:flex;align-items:center;gap:10px;grid-column:2;justify-self:center;}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;}
.brand-mark i{display:block;width:4px;border-radius:2px;background:var(--accent);}
.brand-mark i:nth-child(1){height:10px;}
.brand-mark i:nth-child(2){height:19px;}
.brand-mark i:nth-child(3){height:14px;background:var(--cyan);}
.brand-name{display:block;font-size:17px;font-weight:800;letter-spacing:-.01em;line-height:1.2;color:#fff;}
.brand-sub{display:block;font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.6);}
.site-header.is-scrolled .brand-name{color:var(--ink);}
.site-header.is-scrolled .brand-sub{color:var(--ink-3);}
.nav-toggle{
  display:none;grid-column:3;grid-row:1;justify-self:end;
  width:44px;height:44px;border:0;border-radius:8px;background:transparent;
  color:#fff;cursor:pointer;align-items:center;justify-content:center;
  transition:background-color .18s ease-out,color .18s ease-out;
}
.nav-toggle:hover{background:rgba(255,255,255,.12);}
.site-header.is-scrolled .nav-toggle{color:var(--ink);}
.site-header.is-scrolled .nav-toggle:hover{background:var(--brand-soft);}
.mobile-panel{
  position:fixed;top:0;left:0;right:0;z-index:55;
  background:var(--dark);padding:72px 16px 20px;
  transform:translateY(-102%);opacity:0;pointer-events:none;
  transition:transform .2s ease,opacity .2s ease;
}
.mobile-panel.open{transform:translateY(0);opacity:1;pointer-events:auto;}
.mobile-panel a{
  display:flex;align-items:center;height:44px;padding:0 10px;
  color:rgba(255,255,255,.88);font-size:16px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.mobile-panel a.active{color:var(--accent);font-weight:600;}
.mobile-panel a:last-child{border-bottom:0;}

/* ===== Hero ===== */
.page-hero{position:relative;background:var(--dark);padding:148px 0 80px;overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;opacity:.30;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 2px,transparent 2px 28px);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12.5px;color:rgba(255,255,255,.62);margin-bottom:26px;
}
.breadcrumb a{color:rgba(255,255,255,.78);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span[aria-current]{color:rgba(255,255,255,.6);}
.hero-copy .eyebrow{color:var(--cyan);}
.hero-copy h1{color:#fff;margin-bottom:18px;}
.hero-sub{
  font-size:clamp(1rem,1.3vw,1.15rem);color:rgba(255,255,255,.78);
  max-width:560px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.trust-row{
  display:flex;flex-wrap:wrap;gap:8px 22px;list-style:none;margin:0;padding:0;
  font-size:13.5px;color:rgba(255,255,255,.72);
}
.trust-row li{display:flex;align-items:center;gap:8px;}
.trust-row li::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--cyan);display:inline-block;
}
.hero-card{
  background:#fff;border-radius:var(--radius-card);padding:26px 24px;
  box-shadow:0 18px 44px rgba(0,0,0,.24);
}
.hero-card-title{font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--ink-3);margin-bottom:16px;}
.hero-card ul{list-style:none;margin:0;padding:0;display:grid;gap:14px;}
.hero-card li{
  display:flex;align-items:center;gap:12px;
  font-size:15px;color:var(--ink);padding-bottom:14px;
  border-bottom:1px solid var(--line-soft);
}
.hero-card li:last-child{border-bottom:0;padding-bottom:0;}
.hero-card .num{
  font-family:var(--mono);font-size:17px;font-weight:700;color:var(--brand);
  min-width:26px;
}

/* ===== 板块通用 ===== */
.section{padding:88px 0;}
.section.alt{background:#fff;}
.section.tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--ink-2);font-size:16px;}
.intro{
  max-width:680px;font-size:16.5px;color:var(--ink-2);
  margin:0 0 44px;
}

/* ===== 左目录 + 右内容 ===== */
.doc-layout{align-items:start;}
.side-toc{position:sticky;top:104px;}
.side-toc-title{
  font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--ink-3);margin-bottom:12px;padding-left:12px;
}
.side-toc-list{list-style:none;margin:0;padding:0;}
.side-toc-list li{margin-bottom:2px;}
.side-toc-list a{
  display:block;padding:9px 12px;border-radius:8px;
  font-size:14.5px;color:var(--ink-2);
  border-left:3px solid transparent;
  transition:color .18s ease-out,background-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.side-toc-list a:hover{color:var(--brand-dark);background:#fff;transform:translateX(2px);box-shadow:var(--shadow-1);}
.side-toc-list a.current{
  color:var(--brand-dark);background:#fff;
  border-left-color:var(--accent);font-weight:600;box-shadow:var(--shadow-1);
}
.doc-body{max-width:100%;}
.doc-block{padding-bottom:40px;margin-bottom:44px;border-bottom:1px solid var(--line);}
.doc-block:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.doc-block h2{
  position:relative;padding-left:16px;margin-bottom:20px;
  font-size:clamp(1.35rem,1.9vw,1.65rem);
}
.doc-block h2::before{
  content:"";position:absolute;left:0;top:.32em;
  width:4px;height:1em;border-radius:2px;background:var(--brand);
}
.doc-grid{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:32px;align-items:start;}
.doc-grid p{color:var(--ink-2);}
.doc-figure{margin:0;}
.doc-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.doc-figure figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;line-height:1.6;}
.list-check{list-style:none;margin:18px 0 0;padding:0;}
.list-check li{
  position:relative;padding-left:24px;margin-bottom:10px;
  color:var(--ink-2);font-size:15.5px;
}
.list-check li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:8px;border-radius:50%;background:var(--brand);
}
.point-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:24px;}
.point-card{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow-1);
  transition:transform .25s ease-out,box-shadow .25s ease-out;
}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.point-card .num{
  font-family:var(--mono);font-size:22px;font-weight:700;
  color:var(--brand);letter-spacing:.02em;
}
.point-card h3{margin:8px 0 8px;font-size:1.04rem;}
.point-card p{font-size:14.5px;line-height:1.75;color:var(--ink-2);margin:0;}

/* ===== 流程带 ===== */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;margin-top:12px;}
.flow-step{position:relative;padding-top:26px;}
.flow-step::before{
  content:"";position:absolute;top:0;left:0;right:0;height:0;
  border-top:2px dashed var(--line);
}
.flow-step::after{
  content:"";position:absolute;top:-5px;left:0;
  width:10px;height:10px;border-radius:50%;background:var(--accent);
}
.flow-num{font-family:var(--mono);font-size:19px;font-weight:700;color:var(--brand-dark);display:block;margin-bottom:6px;}
.flow-step h3{font-size:1.05rem;margin-bottom:8px;}
.flow-step p{font-size:14.5px;color:var(--ink-2);margin:0;line-height:1.75;}

/* ===== 场景卡 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.info-card{
  display:flex;flex-direction:column;background:#fff;
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);border-top:1px solid var(--line-soft);
  transition:transform .25s ease-out,box-shadow .25s ease-out;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.info-card .thumb{aspect-ratio:16/9;overflow:hidden;}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .25s ease-out;}
.info-card:hover .thumb img{transform:scale(1.03);}
.info-card .body{padding:22px 20px 24px;display:flex;flex-direction:column;gap:10px;}
.info-card h3{font-size:1.08rem;}
.info-card p{font-size:14.5px;color:var(--ink-2);margin:0;line-height:1.78;}

/* ===== FAQ ===== */
.faq-layout{align-items:start;}
.faq-intro h2{margin-bottom:14px;}
.faq-intro p{color:var(--ink-2);font-size:15.5px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  position:relative;background:#fff;border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  min-height:56px;display:flex;align-items:center;
  padding:16px 56px 16px 22px;
  transition:background-color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#F1F5F2;}
.faq-item summary h3{font-size:1.02rem;font-weight:600;margin:0;color:var(--ink);}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-family:var(--mono);font-size:20px;font-weight:700;color:var(--brand);
}
.faq-item[open] summary::after{content:"−";}
.faq-item[open] summary{background:#F1F5F2;}
.faq-item[open]::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);z-index:3;
}
.faq-answer{
  padding:14px 22px 20px;margin:0 22px 0;border-top:1px solid rgba(15,138,87,.25);
  font-size:15.5px;color:var(--ink-2);line-height:1.85;
}

/* ===== CTA 带 ===== */
.cta-band{position:relative;background:var(--dark);color:#fff;padding:76px 0;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(45deg,transparent 0 130px,rgba(255,106,31,.14) 130px 142px);
  opacity:.7;
}
.cta-band .container{position:relative;z-index:2;}
.cta-copy h2{color:#fff;margin-bottom:14px;}
.cta-copy p{color:rgba(255,255,255,.76);font-size:16px;max-width:460px;}
.cta-form{
  background:#fff;border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:0 18px 44px rgba(0,0,0,.28);
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px;font-weight:500;}
.field input{
  width:100%;height:48px;border-radius:var(--radius-btn);
  border:1px solid #D5DED8;background:#fff;color:var(--ink);
  padding:0 14px;font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field input::placeholder{color:#A9B5AE;}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,138,87,.15);}
.cta-trust{
  display:flex;flex-wrap:wrap;gap:10px 26px;list-style:none;margin:26px 0 0;padding:0;
  font-size:13px;color:rgba(255,255,255,.62);
}
.cta-trust li{display:flex;align-items:center;gap:8px;}
.cta-trust li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;
}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand .brand{justify-self:start;grid-column:auto;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.55);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px;margin-bottom:20px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(255,255,255,.2);color:rgba(255,255,255,.72);
  display:inline-flex;align-items:center;justify-content:center;
  transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;
}
.footer-social a:hover{color:#fff;border-color:#fff;background:rgba(255,255,255,.08);}
.footer-title{font-size:13px;font-weight:600;letter-spacing:.1em;color:rgba(255,255,255,.5);margin:0 0 16px;}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.footer-links a{display:inline-block;color:rgba(255,255,255,.72);transition:color .18s ease-out,transform .18s ease-out;}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-contact li{color:rgba(255,255,255,.62);line-height:1.75;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:48px;padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.18);
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .flow{gap:20px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .section.tight{padding:52px 0;}
  .nav-side{display:none;}
  .nav-inner{grid-template-columns:44px 1fr 44px;height:60px;}
  .nav-toggle{display:inline-flex;}
  .brand{grid-column:2;}
  .page-hero{padding:120px 0 64px;}
  .side-toc{position:static;margin-bottom:32px;}
  .side-toc-list{display:flex;flex-wrap:wrap;gap:8px;}
  .side-toc-list li{margin:0;}
  .side-toc-list a{border-left:0;border:1px solid var(--line);background:#fff;padding:8px 14px;border-radius:999px;font-size:13.5px;}
  .side-toc-list a:hover{transform:none;}
  .side-toc-list a.current{border-color:var(--brand);border-left:1px solid var(--brand);background:var(--brand-soft);}
  .doc-grid{grid-template-columns:minmax(0,1fr);gap:24px;}
  .doc-figure{order:-1;}
  .point-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:639px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  .section.tight{padding:44px 0;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .point-grid{grid-template-columns:minmax(0,1fr);}
  .flow{grid-template-columns:minmax(0,1fr);}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .doc-block h2{font-size:1.3rem;}
  .faq-item summary{padding:14px 48px 14px 18px;}
  .faq-answer{margin:0 18px;padding:12px 0 18px;}
  .cta-band{padding:56px 0;}
  .cta-form{padding:22px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}

/* roulang page: article */
:root{
  --green:#0F8A57;
  --green-dark:#0A6B44;
  --orange:#FF6A1F;
  --orange-dark:#E85A12;
  --cyan:#14C7C0;
  --bg:#F6F8F6;
  --white:#FFFFFF;
  --ink:#0B1210;
  --text:#131A17;
  --text-2:#4B5A53;
  --text-3:#7C8A83;
  --line:#E2E8E3;
  --line-soft:#EEF2EF;
  --soft:#F1F5F2;
  --success:#1E9E5A;
  --warn:#D6453B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:8px;
  --shadow-1:0 1px 2px rgba(11,18,16,.05), 0 8px 24px rgba(11,18,16,.06);
  --shadow-2:0 2px 4px rgba(11,18,16,.06), 0 14px 32px rgba(11,18,16,.10);
  --font-cn:-apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num:"Barlow Condensed", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border:0}
a{color:var(--green);text-decoration:none}
a:hover{color:var(--green-dark)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1280px}}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:639px){.container{padding:0 16px}}

/* ---------- 栅格（Foundation grid-x 增强） ---------- */
.grid-x{display:flex;flex-flow:row wrap;margin-left:-14px;margin-right:-14px}
.cell{flex:0 0 auto;width:100%;min-width:0;padding-left:14px;padding-right:14px}
@media (min-width:640px){
  .medium-6{width:50%}
  .medium-12{width:100%}
}
@media (min-width:1024px){
  .large-3{width:25%}
  .large-4{width:33.3333%}
  .large-5{width:41.6667%}
  .large-7{width:58.3333%}
  .large-8{width:66.6667%}
  .large-9{width:75%}
  .large-12{width:100%}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);border:0;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.02em;text-decoration:none;
  transition:background-color .18s ease-out, color .18s ease-out, transform .18s ease-out, box-shadow .18s ease-out, border-color .18s ease-out;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 2px 0 var(--orange-dark)}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 2px 0 #D14F0C, 0 12px 22px rgba(232,90,18,.24)}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 0 var(--orange-dark)}
.btn-ghost{background:transparent;border:1.5px solid currentColor;color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-ghost-dark{background:transparent;border:1.5px solid var(--text);color:var(--text)}
.btn-ghost-dark:hover{background:rgba(15,138,87,.06);border-color:var(--green);color:var(--green-dark)}
.btn[disabled]{opacity:.5;pointer-events:none}

.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--green-dark)}
.link-arrow::after{content:"→";transition:transform .18s ease-out}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;height:72px;
  background:transparent;border-bottom:1px solid transparent;
  transition:background-color .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.site-header.is-scrolled{
  background:#fff;border-bottom-color:var(--line);
  box-shadow:0 1px 2px rgba(11,18,16,.05), 0 8px 24px rgba(11,18,16,.05);
}
.nav-inner{
  max-width:1200px;margin:0 auto;height:72px;padding:0 32px;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;
}
@media (min-width:1440px){.nav-inner{max-width:1280px}}
.nav-side{display:flex;align-items:center;gap:28px}
.nav-side.left{justify-content:flex-end;grid-column:1}
.nav-side.right{justify-content:flex-start;grid-column:3}
.nav-link{position:relative;font-size:15px;font-weight:500;color:rgba(255,255,255,.86);padding:8px 2px;transition:color .18s ease-out}
.nav-link:hover{color:#fff}
.nav-link.active{color:#fff;font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--orange);border-radius:2px}
.site-header.is-scrolled .nav-link{color:var(--text-2)}
.site-header.is-scrolled .nav-link:hover{color:var(--text)}
.site-header.is-scrolled .nav-link.active{color:var(--green-dark)}
.brand{display:flex;align-items:center;gap:10px;grid-column:2;justify-self:center;text-decoration:none}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--green),var(--cyan));
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
}
.brand-mark i{display:block;height:2px;background:#fff;border-radius:2px;transform:rotate(-16deg)}
.brand-mark i:nth-child(1){width:11px}
.brand-mark i:nth-child(2){width:17px}
.brand-mark i:nth-child(3){width:13px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;color:#fff;transition:color .2s ease}
.brand-sub{font-size:11px;letter-spacing:.12em;color:rgba(255,255,255,.6);transition:color .2s ease}
.site-header.is-scrolled .brand-name{color:var(--ink)}
.site-header.is-scrolled .brand-sub{color:var(--text-3)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;grid-column:1;justify-self:start;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:background-color .2s ease,border-color .2s ease;
}
.nav-toggle .toggle-bar{display:block;width:18px;height:2px;background:#fff;border-radius:2px}
.site-header.is-scrolled .nav-toggle{background:var(--soft);border-color:var(--line)}
.site-header.is-scrolled .nav-toggle .toggle-bar{background:var(--ink)}

/* ---------- 移动面板 ---------- */
.mobile-panel{
  position:fixed;top:0;left:0;right:0;z-index:90;min-height:100vh;
  background:var(--ink);transform:translateY(-100%);visibility:hidden;
  transition:transform .2s ease-out, visibility .2s ease-out;
  padding:20px 16px 32px;display:flex;flex-direction:column;
}
.mobile-panel.is-open{transform:translateY(0);visibility:visible}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;min-height:44px;margin-bottom:20px}
.mobile-panel-head .brand{grid-column:auto;justify-self:start}
.panel-close{
  width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);color:#fff;font-size:22px;line-height:1;
  display:grid;place-items:center;
}
.mobile-nav{display:flex;flex-direction:column}
.mobile-nav a{
  display:flex;align-items:center;height:52px;font-size:16px;color:rgba(255,255,255,.86);
  border-bottom:1px solid rgba(255,255,255,.1);opacity:0;transform:translateY(8px);
  transition:opacity .2s ease-out, transform .2s ease-out, color .18s ease-out;
}
.mobile-panel.is-open .mobile-nav a{opacity:1;transform:translateY(0)}
.mobile-nav a:nth-child(1){transition-delay:.04s}
.mobile-nav a:nth-child(2){transition-delay:.08s}
.mobile-nav a:nth-child(3){transition-delay:.12s}
.mobile-nav a:nth-child(4){transition-delay:.16s}
.mobile-nav a:hover{color:#fff}
.mobile-nav a.active{color:#fff;font-weight:600;box-shadow:inset 3px 0 0 var(--orange);padding-left:12px}
.mobile-panel-foot{margin-top:auto;font-size:13px;color:rgba(255,255,255,.45);line-height:1.8}

/* ---------- 文章头部横幅 ---------- */
.page-banner{
  position:relative;overflow:hidden;padding:150px 0 66px;
  background:var(--ink) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,18,16,.88),rgba(11,18,16,.78) 55%,rgba(11,18,16,.93));
}
.page-banner::after{
  content:"";position:absolute;inset:-20% -10%;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 2px,transparent 2px 48px);
}
.banner-inner{position:relative;z-index:1;max-width:900px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6)}
.breadcrumb a{color:rgba(255,255,255,.72);transition:color .18s ease-out}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumb-sep{color:rgba(255,255,255,.32)}
.crumb-current{color:rgba(255,255,255,.86)}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  letter-spacing:.06em;padding:5px 12px;border-radius:999px;
  background:rgba(15,138,87,.12);color:var(--green-dark);
}
.tag-cyan{background:rgba(20,199,192,.16);color:#79E7E2}
.banner-title{
  margin:18px 0 20px;color:#fff;
  font-size:clamp(1.75rem,3vw,2.55rem);font-weight:800;line-height:1.25;letter-spacing:-.02em;
}
.banner-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:13px;color:rgba(255,255,255,.68)}
.banner-meta .sep{display:inline-block;width:1px;height:12px;background:rgba(255,255,255,.28)}
.banner-strip{position:relative;z-index:1;height:6px;margin-top:44px;border-radius:2px;background:linear-gradient(90deg,var(--orange) 0 34%,var(--cyan) 34% 52%,rgba(255,255,255,.16) 52% 100%)}

/* ---------- 文章区 ---------- */
.article-section{padding:64px 0 80px;background:var(--bg)}
.article-body{
  max-width:760px;margin:0 auto;
  font-size:17px;line-height:1.9;letter-spacing:.01em;color:var(--text);
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;margin:44px 0 18px;padding-left:16px;
  font-size:clamp(1.32rem,2vw,1.58rem);font-weight:700;line-height:1.4;color:var(--ink);
}
.article-body h2::before{content:"";position:absolute;left:0;top:.24em;width:4px;height:.95em;border-radius:2px;background:var(--green)}
.article-body h3{margin:28px 0 14px;font-size:1.2rem;font-weight:600;line-height:1.5;color:var(--green-dark)}
.article-body h4{margin:22px 0 12px;font-size:1.05rem;font-weight:600;color:var(--ink)}
.article-body img{border-radius:var(--r-img);margin:26px 0 10px}
.article-body figure{margin:26px 0}
.article-body figure img{margin:0 0 10px}
.article-body figcaption{font-size:13px;line-height:1.6;color:var(--text-3);text-align:center}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:4px solid var(--green);
  background:var(--soft);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em}
.article-body li{margin-bottom:.5em;line-height:1.82}
.article-body ul li::marker{color:var(--green)}
.article-body ol li::marker{color:var(--green-dark);font-weight:600}
.article-body a{color:var(--green-dark);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-body a:hover{color:var(--ink)}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;line-height:1.7}
.article-body th{background:var(--soft);font-weight:600;color:var(--ink)}
.article-body code{background:var(--soft);padding:2px 6px;border-radius:6px;font-size:.92em}

/* ---------- 目录 ---------- */
.article-toc-cell{position:relative}
.toc-card{
  position:sticky;top:104px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 16px;box-shadow:var(--shadow-1);
}
.toc-title{margin:0 0 12px;padding:0 8px;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--text-3)}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;max-height:62vh;overflow:auto}
.toc-list a{
  display:block;padding:7px 8px;border-left:2px solid transparent;border-radius:6px;
  font-size:14px;line-height:1.5;color:var(--text-2);text-decoration:none;
  transition:color .18s ease-out, background-color .18s ease-out, border-color .18s ease-out, transform .18s ease-out;
}
.toc-list a:hover{color:var(--green-dark);background:var(--soft);transform:translateX(2px)}
.toc-list a.is-active{color:var(--green-dark);font-weight:600;background:var(--soft);border-left-color:var(--green)}

/* ---------- 空态 ---------- */
.article-empty{
  max-width:760px;margin:0 auto;padding:64px 24px;text-align:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);
}
.article-empty .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:18px;
  background:rgba(15,138,87,.08);display:grid;place-items:center;color:var(--green);
}
.article-empty h2{font-size:1.3rem;font-weight:700;color:var(--ink);margin-bottom:10px}
.article-empty p{font-size:15px;color:var(--text-2);margin-bottom:20px}

/* ---------- 结尾操作条 ---------- */
.action-bar{
  max-width:760px;margin:56px auto 0;padding:20px 24px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px 24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);
}
.action-bar .action-text{font-size:14px;color:var(--text-2)}
.action-links{display:flex;flex-wrap:wrap;align-items:center;gap:18px}

/* ---------- 相关推荐 ---------- */
.related-section{padding:0 0 96px;background:var(--bg)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{margin:0;font-size:clamp(1.5rem,2.2vw,2rem);font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.section-head .section-note{font-size:14px;color:var(--text-3)}
.card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform .25s ease, box-shadow .25s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.card-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:rgba(15,138,87,.08)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{margin:0;font-size:1.08rem;font-weight:600;line-height:1.45;color:var(--ink)}
.card-title a{color:inherit;text-decoration:none}
.card-title a:hover{color:var(--green-dark)}
.card-desc{
  margin:0;font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.card-foot .sep{width:1px;height:10px;background:var(--line)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);padding:76px 0 28px;color:rgba(255,255,255,.72)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px 32px}
.footer-brand .brand{justify-self:start}
.footer-desc{margin:16px 0 18px;max-width:340px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6)}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.75);
  transition:color .18s ease-out, border-color .18s ease-out, background-color .18s ease-out;
}
.footer-social a:hover{color:#fff;border-color:rgba(255,255,255,.42);background:rgba(255,255,255,.06)}
.footer-title{margin:0 0 16px;font-size:13px;font-weight:600;letter-spacing:.12em;color:rgba(255,255,255,.5)}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-links a{
  display:inline-block;font-size:14px;color:rgba(255,255,255,.72);
  transition:color .18s ease-out, transform .18s ease-out;
}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-contact li{font-size:14px;line-height:1.75;color:rgba(255,255,255,.64)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.2);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-side{display:none}
  .nav-toggle{display:flex}
  .nav-inner{grid-template-columns:44px 1fr 44px;padding:0 24px}
  .brand{grid-column:2}
  .page-banner{padding:132px 0 56px}
  .article-section{padding:56px 0 64px}
  .article-toc-cell{display:none}
  .article-body{font-size:16.5px}
  .related-section{padding-bottom:72px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 28px}
}
@media (max-width:639px){
  .site-header,.nav-inner{height:60px}
  .nav-inner{padding:0 16px}
  .brand-name{font-size:15px}
  .brand-sub{font-size:10px}
  .brand-mark{width:28px;height:28px}
  .page-banner{padding:108px 0 46px}
  .banner-title{margin:14px 0 16px}
  .banner-strip{margin-top:32px}
  .article-section{padding:44px 0 56px}
  .article-body{font-size:16px;line-height:1.86}
  .article-body h2{margin:34px 0 14px}
  .action-bar{padding:18px 18px;flex-direction:column;align-items:flex-start}
  .action-links{width:100%;justify-content:flex-start;gap:14px}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .card-body{padding:18px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --brand:#0F8A57;
  --brand-dark:#0A6B44;
  --brand-soft:rgba(15,138,87,.08);
  --accent:#FF6A1F;
  --accent-dark:#E85A12;
  --cyan:#14C7C0;
  --bg:#F6F8F6;
  --card:#FFFFFF;
  --dark:#0B1210;
  --ink:#131A17;
  --ink-2:#4B5A53;
  --ink-3:#7C8A83;
  --line:#E2E8E3;
  --line-soft:#EEF2EF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:8px;
  --shadow-1:0 1px 2px rgba(11,18,16,.05), 0 8px 24px rgba(11,18,16,.06);
  --shadow-2:0 2px 4px rgba(11,18,16,.06), 0 14px 32px rgba(11,18,16,.10);
  --maxw:1200px;
  --mono:"Barlow Condensed", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--brand);text-decoration:none;}
a:hover{color:var(--brand-dark);}
button{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}

/* ============ 容器 ============ */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px;}

/* ============ 通用组件 ============ */
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--brand);
  margin-bottom:12px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  padding:14px 28px;
  border-radius:var(--r-btn);
  border:0;
  cursor:pointer;
  text-decoration:none;
  white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 2px 0 var(--accent-dark);
}
.btn-primary:hover{
  background:var(--accent-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 3px 0 var(--accent-dark),0 10px 24px rgba(232,90,18,.28);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 var(--accent-dark);}
.btn-ghost{
  background:transparent;
  color:#fff;
  border:1.5px solid rgba(255,255,255,.65);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.08);
  border-color:#fff;
  color:#fff;
}
.btn-line{
  background:transparent;
  color:var(--ink);
  border:1.5px solid var(--ink);
}
.btn-line:hover{
  background:var(--brand-soft);
  border-color:var(--brand-dark);
  color:var(--brand-dark);
}
.tag{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--brand-dark);
  background:var(--brand-soft);
  padding:5px 12px;
  border-radius:999px;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-dark);
}
.text-link::after{content:"→";transition:transform .18s ease-out;}
.text-link:hover{color:var(--brand);}
.text-link:hover::after{transform:translateX(3px);}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:100;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-header.scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 1px 2px rgba(11,18,16,.06);
}
.header-inner{
  position:relative;
  max-width:1300px;
  margin:0 auto;
  padding:0 32px;
  height:72px;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:rgba(255,255,255,.82);
  text-decoration:none;
  transition:color .18s ease;
}
.nav-link:hover{color:#fff;}
.nav-link.active{color:#fff;font-weight:600;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.site-header.scrolled .nav-link{color:var(--ink-2);}
.site-header.scrolled .nav-link:hover{color:var(--brand-dark);}
.site-header.scrolled .nav-link.active{color:var(--brand-dark);}

/* 品牌 */
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
}
.brand-mark{
  display:flex;
  flex-direction:column;
  gap:3px;
  width:20px;
  flex:0 0 auto;
}
.brand-mark i{display:block;height:3px;border-radius:2px;background:var(--accent);}
.brand-mark i:nth-child(1){width:20px;}
.brand-mark i:nth-child(2){width:14px;background:var(--cyan);}
.brand-mark i:nth-child(3){width:9px;background:var(--brand);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{
  font-size:17px;
  font-weight:800;
  letter-spacing:-.01em;
  color:#fff;
  transition:color .2s ease;
}
.brand-sub{
  font-size:11px;
  letter-spacing:.08em;
  color:rgba(255,255,255,.6);
  transition:color .2s ease;
}
.site-header.scrolled .brand-name{color:var(--ink);}
.site-header.scrolled .brand-sub{color:var(--ink-3);}

/* 移动端菜单按钮 */
.nav-toggle{
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  background:transparent;
  border:0;
  border-radius:8px;
  cursor:pointer;
  color:#fff;
}
.nav-toggle span{display:block;width:22px;height:2px;border-radius:2px;background:currentColor;}
.site-header.scrolled .nav-toggle{color:var(--ink);}

.mobile-panel{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  z-index:98;
  background:#fff;
  padding:76px 20px 20px;
  box-shadow:0 16px 40px rgba(11,18,16,.14);
  transform:translateY(-110%);
  transition:transform .24s ease;
}
.mobile-panel.open{transform:translateY(0);}
.mobile-panel a{
  display:block;
  height:48px;
  line-height:48px;
  padding:0 4px;
  font-size:16px;
  font-weight:500;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.active{color:var(--brand-dark);font-weight:700;}
.mobile-panel a:last-child{border-bottom:0;}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;
  min-height:360px;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:118px 24px 62px;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(11,18,16,.88) 0%,rgba(11,18,16,.72) 52%,rgba(11,18,16,.88) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,106,31,.15) 0 2px,transparent 2px 30px);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:780px;}
.page-hero .eyebrow{color:var(--cyan);}
.page-hero h1{
  color:#fff;
  font-size:clamp(1.8rem,3.1vw,2.6rem);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.02em;
}
.hero-lead{
  max-width:680px;
  margin:20px auto 0;
  font-size:clamp(15px,1.4vw,17px);
  line-height:1.85;
  color:rgba(255,255,255,.78);
}
.accent-slash{
  height:6px;
  background:linear-gradient(90deg,var(--accent) 0%,var(--accent) 30%,var(--cyan) 30%,var(--cyan) 55%,var(--brand) 55%,var(--brand) 100%);
}

/* ============ 面包屑 ============ */
.breadcrumb{
  padding:26px 0 0;
  font-size:13px;
  color:var(--ink-3);
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand-dark);}
.breadcrumb .sep{color:#C3CFC8;}
.breadcrumb .current{color:var(--ink-2);font-weight:600;}

/* ============ 板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:clamp(1.6rem,2.3vw,2.1rem);}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-2);}
.flow-band{padding-top:56px;}

/* ============ 四步流程带 ============ */
.flow-grid{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.flow-grid::before{
  content:"";
  position:absolute;
  top:22px;
  left:26px;
  right:26px;
  border-top:2px dashed #CFDAD3;
}
.flow-item{position:relative;padding-right:12px;}
.flow-num{
  position:relative;
  z-index:1;
  width:44px;
  height:44px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--bg);
  border:2px solid var(--brand);
  color:var(--brand-dark);
  font-family:var(--mono);
  font-size:17px;
  font-weight:700;
}
.flow-item h3{margin-top:20px;font-size:1.15rem;}
.flow-item p{margin-top:8px;font-size:14.5px;line-height:1.75;color:var(--ink-2);}

/* ============ 信息卡片区 ============ */
.info-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:32px 28px;
}
.info-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border-radius:var(--r-card);
  border-top:1px solid var(--line-soft);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.info-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
}
.info-card figure{
  position:relative;
  margin:0;
  aspect-ratio:16 / 9;
  overflow:hidden;
  background:var(--brand-soft);
}
.info-card img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.info-card:hover img{transform:scale(1.03);}
.card-badge{
  position:absolute;
  left:14px;
  bottom:14px;
  padding:6px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  color:#fff;
  background:rgba(11,18,16,.74);
}
.card-body{
  flex:1;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:22px 24px 26px;
}
.card-body h3{font-size:1.2rem;line-height:1.45;}
.card-body p{font-size:15px;line-height:1.8;color:var(--ink-2);}
.card-body .text-link{margin-top:auto;padding-top:4px;}

/* ============ 数据指标 ============ */
.metrics-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.metrics-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.metric{
  background:var(--card);
  border-radius:var(--r-card);
  border-left:4px solid var(--brand);
  padding:26px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.metric-value{
  font-family:var(--mono);
  font-size:38px;
  font-weight:700;
  line-height:1;
  letter-spacing:-.01em;
  color:var(--brand-dark);
}
.metric-value span{
  font-family:inherit;
  font-size:15px;
  font-weight:600;
  margin-left:4px;
  color:var(--ink-3);
}
.metric-label{margin-top:12px;font-size:14px;line-height:1.7;color:var(--ink-2);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  position:relative;
  background:var(--card);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--brand);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .25s ease;
  z-index:1;
}
.faq-item.open::before{transform:scaleY(1);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:16px 24px;
  background:transparent;
  border:0;
  cursor:pointer;
  text-align:left;
  font-size:16px;
  font-weight:600;
  line-height:1.5;
  color:var(--ink);
  transition:background .18s ease;
}
.faq-q:hover{background:#F1F5F2;}
.faq-icon{
  flex:0 0 auto;
  width:20px;
  text-align:center;
  font-family:var(--mono);
  font-size:20px;
  line-height:1;
  color:var(--brand);
}
.faq-icon::before{content:"+";}
.faq-item.open .faq-icon::before{content:"–";}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-item.open .faq-a{max-height:400px;}
.faq-a p{
  margin:0 24px 22px;
  padding-top:16px;
  border-top:1px solid rgba(15,138,87,.14);
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  background:var(--dark);
  padding:72px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,106,31,.10) 0 12px,transparent 12px 64px);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
}
.cta-inner h2{color:#fff;font-size:clamp(1.5rem,2.2vw,2rem);}
.cta-inner p{margin-top:12px;font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.72);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--dark);
  color:#C6D2CB;
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:rgba(255,255,255,.55);}
.footer-desc{
  margin:18px 0 20px;
  max-width:340px;
  font-size:14px;
  line-height:1.8;
  color:#93A69D;
}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.18);
  color:#C6D2CB;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.footer-social a:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.4);}
.footer-title{
  margin-bottom:16px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.1em;
  color:#8FA79C;
}
.footer-links li + li{margin-top:10px;}
.footer-links a,
.footer-contact li{
  font-size:14px;
  line-height:1.8;
  color:#C6D2CB;
}
.footer-links a{display:inline-block;transition:color .18s ease,transform .18s ease;}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-contact li + li{margin-top:10px;}
.footer-bottom{
  margin-top:56px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#85988F;
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:center;
    height:60px;
    padding:0 16px;
  }
  .nav-side{display:none;}
  .nav-toggle{
    display:flex;
    position:absolute;
    left:12px;
    top:50%;
    transform:translateY(-50%);
  }
  .brand{justify-content:center;}
  .mobile-panel{display:block;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .flow-band{padding-top:44px;}
  .info-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px;}
  .cta-band{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .flow-grid{grid-template-columns:1fr;gap:28px;}
  .flow-grid::before{
    top:22px;
    bottom:22px;
    left:21px;
    right:auto;
    border-top:0;
    border-left:2px dashed #CFDAD3;
  }
  .flow-item{padding-left:68px;padding-right:0;}
  .flow-num{position:absolute;left:0;top:0;}
  .flow-item h3{margin-top:0;}
  .info-grid{grid-template-columns:1fr;}
  .metrics-grid{grid-template-columns:1fr;}
  .page-hero{padding:96px 20px 52px;}
  .faq-q{padding:14px 18px;}
  .faq-a p{margin:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-sub{display:none;}
  .brand-name{font-size:16px;}
  .section{padding:48px 0;}
  .section-tight{padding:44px 0;}
  .btn{width:100%;padding:14px 20px;}
  .cta-actions{width:100%;flex-direction:column;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
}

/* roulang page: category3 */
:root{
  --brand:#0F8A57;
  --brand-dark:#0A6B44;
  --accent:#FF6A1F;
  --accent-dark:#E85A12;
  --cyan:#14C7C0;
  --bg:#F6F8F6;
  --surface:#FFFFFF;
  --ink-dark:#0B1210;
  --text:#131A17;
  --text-2:#4B5A53;
  --text-3:#7C8A83;
  --line:#E2E8E3;
  --line-soft:#EEF2EF;
  --ok:#1E9E5A;
  --warn:#D6453B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:8px;
  --shadow-1:0 1px 2px rgba(11,18,16,.05),0 8px 24px rgba(11,18,16,.06);
  --shadow-2:0 2px 4px rgba(11,18,16,.06),0 14px 32px rgba(11,18,16,.10);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Barlow Condensed",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-dark);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand)}
a:focus-visible,button:focus-visible,input:focus-visible,.faq-q:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
h1,h2,h3,h4{color:var(--text);letter-spacing:-.01em}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--brand-dark);margin-bottom:12px}
.section-title{font-size:clamp(1.6rem,2.3vw,2.1rem);font-weight:700;line-height:1.25}
.section-sub{margin-top:12px;font-size:16px;color:var(--text-2)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-dark);border-bottom:1px solid rgba(15,138,87,.35);padding-bottom:2px}
.text-link:hover{color:var(--accent-dark);border-bottom-color:rgba(232,90,18,.4)}

/* ---------- Header / Nav ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;border-bottom:1px solid transparent;transition:background .2s ease,box-shadow .2s ease,border-color .2s ease}
.header-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:72px;gap:16px}
.nav-side{display:flex;align-items:center;gap:28px}
.nav-side.left{justify-content:flex-start}
.nav-side.right{justify-content:flex-end}
.nav-link{position:relative;font-size:15px;font-weight:500;color:rgba(255,255,255,.82);padding:6px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:#fff;font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand.center{justify-self:center}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:22px}
.brand-mark i{display:block;width:4px;border-radius:2px;background:var(--accent);transform:skewX(-16deg)}
.brand-mark i:nth-child(1){height:22px}
.brand-mark i:nth-child(2){height:16px;background:var(--cyan)}
.brand-mark i:nth-child(3){height:11px;background:var(--brand)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:800;color:#fff;letter-spacing:-.01em}
.brand-sub{font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.58)}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:8px;color:#fff}
.nav-toggle svg{display:block}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:0 4px 18px rgba(11,18,16,.06)}
.site-header.is-scrolled .nav-link{color:var(--text-2)}
.site-header.is-scrolled .nav-link:hover,.site-header.is-scrolled .nav-link.active{color:var(--brand-dark)}
.site-header.is-scrolled .brand-name{color:var(--ink-dark)}
.site-header.is-scrolled .brand-sub{color:var(--text-3)}
.site-header.is-scrolled .nav-toggle{color:var(--ink-dark)}
.mobile-nav{position:fixed;top:0;left:0;right:0;z-index:55;background:var(--ink-dark);padding:84px 24px 32px;transform:translateY(-104%);opacity:0;visibility:hidden;transition:transform .22s ease,opacity .22s ease,visibility .22s}
.mobile-nav.open{transform:translateY(0);opacity:1;visibility:visible}
.mobile-nav a{display:flex;align-items:center;height:44px;font-size:15px;color:rgba(255,255,255,.82);border-bottom:1px solid rgba(255,255,255,.12)}
.mobile-nav a.active{color:#fff;font-weight:600}
.mobile-nav a.mobile-cta{margin-top:20px;height:48px;justify-content:center;border:0;border-radius:var(--radius-btn);background:var(--accent);color:#fff;font-weight:600}

/* ---------- Page hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:152px 0 80px;color:#fff;background:linear-gradient(180deg,rgba(11,18,16,.86),rgba(11,18,16,.92)),url(/assets/images/backpic/back-3.webp) center/cover no-repeat}
.page-hero::after{content:"";position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 2px,transparent 2px 26px)}
.page-hero .container{position:relative;z-index:2}
.crumbs{display:flex;justify-content:center;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:24px}
.crumbs a{color:rgba(255,255,255,.8)}
.crumbs a:hover{color:#fff}
.crumbs .sep{opacity:.5}
.hero-inner{max-width:760px;margin:0 auto;text-align:center}
.page-hero h1{color:#fff;font-size:clamp(2.1rem,3.6vw,3.1rem);font-weight:800;line-height:1.2;letter-spacing:-.02em}
.hero-lead{max-width:680px;margin:22px auto 0;font-size:17px;line-height:1.9;color:rgba(255,255,255,.78)}
.hero-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:30px}
.hero-chip{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);font-size:13px;color:rgba(255,255,255,.86)}
.hero-chip i{width:6px;height:6px;border-radius:50%;background:var(--cyan);display:block}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.btn-primary{background:var(--accent);color:#fff;border-bottom:2px solid var(--accent-dark)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(232,90,18,.26)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:currentColor;color:var(--text)}
.btn-ghost:hover{background:rgba(15,138,87,.07);color:var(--brand-dark);border-color:var(--brand-dark)}
.btn-on-dark{color:#fff}
.btn-on-dark:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}

/* ---------- Cards ---------- */
.chip{display:inline-block;padding:4px 12px;border-radius:999px;background:rgba(15,138,87,.08);color:var(--brand-dark);font-size:12px;font-weight:600;letter-spacing:.06em}
.chip-cyan{background:rgba(20,199,192,.12);color:#0C7F7A}
.qa-grid{margin-left:-12px !important;margin-right:-12px !important}
.qa-grid>.cell{margin-left:0 !important;margin-right:0 !important;padding-left:12px;padding-right:12px;width:100%;flex:0 0 auto}
.qa-col{display:flex;flex-direction:column;gap:24px}
.qa-card{display:flex;flex-direction:column;background:var(--surface);border-radius:var(--radius-card);border-top:1px solid var(--line-soft);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease}
.qa-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.qa-card-media{aspect-ratio:16/9;overflow:hidden;background:rgba(15,138,87,.08)}
.qa-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.qa-card:hover .qa-card-media img{transform:scale(1.03)}
.qa-card-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px}
.qa-card h3{font-size:1.22rem;font-weight:700;line-height:1.4}
.qa-card p{font-size:15px;color:var(--text-2)}
.point-list{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.point-list li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text-2);line-height:1.75}
.point-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--brand);transform:skewX(-12deg)}
.qa-mini{display:flex;gap:18px;align-items:flex-start;padding:22px 24px}
.qa-mini .mini-thumb{flex:0 0 84px;width:84px;aspect-ratio:1/1;border-radius:var(--radius-img);overflow:hidden;background:rgba(15,138,87,.08)}
.qa-mini .mini-thumb img{width:100%;height:100%;object-fit:cover}
.qa-mini h3{font-size:1.05rem;font-weight:600;line-height:1.5;margin-bottom:8px}
.qa-mini p{font-size:14.5px;color:var(--text-2);line-height:1.75}
.qa-mini-inner{display:flex;flex-direction:column;gap:10px;flex:1 1 auto;min-width:0}

/* ---------- Stat band ---------- */
.stat-band{position:relative;overflow:hidden;background:var(--ink-dark);padding:64px 0;color:#fff}
.stat-band::after{content:"";position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 2px,transparent 2px 30px)}
.stat-band .container{position:relative;z-index:2}
.stat-head{max-width:660px;margin-bottom:32px}
.stat-head .eyebrow{color:var(--cyan)}
.stat-head h2{color:#fff;font-size:clamp(1.5rem,2.1vw,1.95rem);font-weight:700;line-height:1.3}
.stat-head p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.66)}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);border-radius:var(--radius-card);padding:26px 24px}
.stat-num{display:block;font-family:var(--mono);font-size:clamp(1.7rem,2.5vw,2.2rem);font-weight:700;color:var(--accent);letter-spacing:-.01em;line-height:1.2}
.stat-label{display:block;margin-top:10px;font-size:14px;color:rgba(255,255,255,.68);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{position:relative;background:var(--surface);border-radius:var(--radius-card);margin-bottom:12px;box-shadow:var(--shadow-1);overflow:hidden;transition:box-shadow .2s ease}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);transform:scaleY(0);transform-origin:top;transition:transform .22s ease}
.faq-item.open::before{transform:scaleY(1)}
.faq-item.open{box-shadow:var(--shadow-2)}
.faq-q{width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);transition:background .18s ease}
.faq-q:hover{background:#F1F5F2}
.faq-q h3{font-size:16px;font-weight:600;line-height:1.5}
.faq-sign{flex:0 0 auto;width:26px;height:26px;display:grid;place-items:center;border-radius:50%;background:rgba(15,138,87,.1);color:var(--brand-dark);font-size:16px;font-family:var(--mono);line-height:1}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-item.open .faq-a{max-height:400px}
.faq-a-inner{padding:14px 22px 22px;border-top:1px solid rgba(15,138,87,.16);font-size:15px;line-height:1.9;color:var(--text-2)}

/* ---------- Soft CTA ---------- */
.cta-soft{background:#EDF6F0;border-top:1px solid #DBEAE1;border-bottom:1px solid #DBEAE1;padding:56px 0}
.cta-soft-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-soft h2{font-size:clamp(1.4rem,2vw,1.8rem);font-weight:700;line-height:1.3}
.cta-soft p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:560px}
.cta-soft-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-dark);color:rgba(255,255,255,.7);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:0}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.5)}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);margin:18px 0}
.footer-social{display:flex;gap:12px}
.footer-social a{width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.18);display:grid;place-items:center;color:rgba(255,255,255,.75);transition:background .18s ease,color .18s ease}
.footer-social a:hover{background:rgba(255,255,255,.1);color:#fff}
.footer-title{font-size:13px;font-weight:600;letter-spacing:.12em;color:rgba(255,255,255,.5);margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a,.footer-contact li{display:inline-block;font-size:14px;color:rgba(255,255,255,.72);transition:color .18s ease,transform .18s ease}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-contact li{display:block;margin-bottom:10px;line-height:1.8;color:rgba(255,255,255,.66)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- Responsive ---------- */
@media screen and (min-width:1024px){
  .qa-grid>.cell{width:50%;flex:0 0 50%}
}
@media screen and (min-width:1440px){
  .container{max-width:1280px}
}
@media screen and (max-width:1023px){
  .nav-side{display:none}
  .nav-toggle{display:flex}
  .header-inner{grid-template-columns:44px 1fr 44px;height:64px}
  .brand.center{grid-column:2}
  .nav-toggle{grid-column:1;grid-row:1}
  .container{padding:0 24px}
  .section{padding:64px 0}
  .stat-grid{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-hero{padding:132px 0 64px}
}
@media screen and (max-width:639px){
  body{font-size:16px}
  .container{padding:0 16px}
  .section{padding:52px 0}
  .page-hero{padding:118px 0 52px}
  .hero-lead{font-size:16px}
  .qa-card-body{padding:20px 20px 22px}
  .qa-mini{flex-direction:column;gap:14px}
  .qa-mini .mini-thumb{width:100%;aspect-ratio:16/9;flex:0 0 auto}
  .cta-soft{padding:44px 0}
  .cta-soft-inner{flex-direction:column;align-items:stretch}
  .cta-soft-actions{flex-direction:column}
  .cta-soft-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}