/* roulang page: index */
:root{
  --brand:#2fbf71;
  --brand-dark:#25a15e;
  --brand-deep:#1c8250;
  --brand-soft:rgba(47,191,113,.12);
  --brand-soft-2:rgba(47,191,113,.06);
  --accent:#ff8a3d;
  --accent-soft:rgba(255,138,61,.12);
  --bg:#f6f8f7;
  --surface:#ffffff;
  --ink:#17231d;
  --ink-2:#5c6b64;
  --ink-3:#8a968f;
  --line:#e4eae6;
  --dark:#12211a;
  --dark-2:#1b2f25;
  --radius:16px;
  --radius-sm:12px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow:0 6px 20px rgba(23,35,29,.06);
  --shadow-lg:0 12px 28px rgba(23,35,29,.10);
  --side-w:232px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:var(--brand-dark);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-deep);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35;letter-spacing:0;}
h1{font-size:42px;font-weight:700;}
h2{font-size:28px;}
h3{font-size:20px;font-weight:600;}
p{margin:0 0 14px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;}
input{font-family:inherit;}
::selection{background:var(--brand-soft);color:var(--ink);}

/* ---------- 骨架 ---------- */
.shell{min-height:100vh;}
.side-nav{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:22px;
  padding:26px 18px 22px;z-index:70;overflow-y:auto;
}
.side-brand{display:flex;flex-direction:column;gap:6px;padding:0 6px 18px;border-bottom:1px solid var(--line);}
.side-brand__logo{font-size:17px;font-weight:700;color:var(--ink);line-height:1.4;}
.side-brand__logo em{font-style:normal;color:var(--brand-dark);}
.side-brand__sub{font-size:12px;color:var(--ink-3);letter-spacing:.4px;}
.side-menu{display:flex;flex-direction:column;gap:6px;}
.side-menu__label{font-size:12px;color:var(--ink-3);padding:0 8px 8px;letter-spacing:.6px;}
.side-menu__link{
  position:relative;display:block;padding:11px 14px 11px 18px;
  font-size:15px;color:var(--ink-2);border-radius:var(--radius-sm);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.side-menu__link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--brand);border-radius:2px;transition:height .22s ease;
}
.side-menu__link:hover{background:var(--brand-soft-2);color:var(--brand-deep);}
.side-menu__link.is-active{background:var(--brand-soft);color:var(--brand-deep);font-weight:600;}
.side-menu__link.is-active::before{height:22px;}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;padding-top:18px;border-top:1px solid var(--line);}
.side-cta{display:block;text-align:center;}
.side-contact{font-size:12px;color:var(--ink-3);line-height:1.7;padding:0 6px;}

.main-area{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 48px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(47,191,113,.28);}
.btn--primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(47,191,113,.32);}
.btn--ghost{background:transparent;color:var(--brand-deep);border:1.5px solid var(--brand);}
.btn--ghost:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px);}
.btn--light{background:#fff;color:var(--brand-deep);}
.btn--light:hover{background:#f0fff6;color:var(--brand-deep);transform:translateY(-2px);}
.btn--sm{height:42px;padding:0 20px;font-size:14px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-dark);
  border-bottom:2px solid transparent;transition:border-color .2s ease,color .2s ease;
}
.text-link:hover{border-bottom-color:var(--brand);color:var(--brand-deep);}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--surface);}
.section--dark{background:var(--dark);color:#dfe9e3;}
.section--dark h2,.section--dark h3{color:#fff;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-deep);
  background:var(--brand-soft);padding:5px 14px;border-radius:var(--radius-pill);margin-bottom:16px;
}
.section-desc{color:var(--ink-2);font-size:16px;margin-top:12px;margin-bottom:0;}

/* ---------- 首屏 Hero ---------- */
.hero{position:relative;padding:72px 0 80px;overflow:hidden;background:var(--bg);}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.08;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,191,113,.16) 0%,rgba(47,191,113,0) 68%);
}
.hero .wrap{position:relative;z-index:2;}
.hero__grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero__title{margin-bottom:18px;}
.hero__sub{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:28px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero__notes{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);padding:6px 14px;
}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block;}
.hero__panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);padding:18px;position:relative;
}
.hero__panel-img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius);
  background:linear-gradient(135deg,#e8f5ee,#f6f8f7);
}
.metric-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px;}
.metric{
  background:var(--brand-soft-2);border:1px solid rgba(47,191,113,.18);
  border-radius:var(--radius-sm);padding:12px 10px;text-align:center;
}
.metric__num{font-size:22px;font-weight:700;color:var(--brand-deep);line-height:1.2;}
.metric__num span{font-size:13px;font-weight:600;color:var(--brand-dark);}
.metric__label{font-size:12px;color:var(--ink-2);margin-top:4px;}

/* ---------- 痛点 ---------- */
.pain{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.pain-list{display:flex;flex-direction:column;gap:16px;}
.pain-item{
  display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease;
}
.pain-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.pain-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:14px;
  background:var(--accent-soft);color:#c9601d;font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.pain-item h3{margin-bottom:6px;font-size:17px;}
.pain-item p{margin:0;color:var(--ink-2);font-size:15px;}

/* ---------- 图文 ---------- */
.split{display:grid;grid-template-columns:6fr 6fr;gap:52px;align-items:center;}
.split__media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);background:#e8f5ee;}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:20px;}
.check-list li{position:relative;padding-left:30px;color:var(--ink-2);font-size:15px;}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:16px;height:16px;border-radius:50%;
  background:var(--brand-soft);border:1.5px solid var(--brand);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:13px;width:5px;height:8px;
  border-right:2px solid var(--brand-deep);border-bottom:2px solid var(--brand-deep);
  transform:rotate(40deg);
}

/* ---------- 数据条 ---------- */
.stats-band{
  background:var(--dark);color:#dfe9e3;padding:56px 0;position:relative;overflow:hidden;
}
.stats-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.07;
}
.stats-band .wrap{position:relative;z-index:2;}
.stats-band h2{color:#fff;font-size:24px;margin-bottom:8px;}
.stats-band p{color:#9fb4a9;margin:0;}
.stats-row{margin-top:32px;}
.stat{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);padding:22px 20px;height:100%;
}
.stat__num{font-size:32px;font-weight:700;color:var(--brand);line-height:1.2;}
.stat__num span{font-size:15px;color:#9fb4a9;font-weight:600;}
.stat__label{font-size:14px;color:#a8bcb1;margin-top:8px;}

/* ---------- 证言 ---------- */
.quotes-row{margin-top:8px;}
.quote-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;height:100%;box-shadow:var(--shadow);position:relative;
  transition:transform .22s ease,box-shadow .22s ease;
}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.quote-card::before{
  content:"";position:absolute;top:0;left:24px;right:24px;height:4px;
  background:var(--brand);border-radius:0 0 4px 4px;opacity:.85;
}
.quote-card p{color:var(--ink-2);font-size:15px;margin-bottom:20px;}
.quote-meta{display:flex;align-items:center;gap:12px;}
.avatar{
  width:44px;height:44px;border-radius:50%;object-fit:cover;flex:0 0 44px;
  background:linear-gradient(135deg,#d8f0e4,#eef7f2);border:2px solid #fff;box-shadow:var(--shadow);
}
.quote-name{font-size:15px;font-weight:600;color:var(--ink);line-height:1.4;}
.quote-role{font-size:13px;color:var(--ink-3);}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap);}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.news-card--lead{grid-column:1 / -1;flex-direction:row;}
.news-thumb{display:block;background:#e8f5ee;overflow:hidden;}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-card--lead .news-thumb{flex:0 0 46%;}
.news-card--lead .news-thumb img{height:100%;aspect-ratio:auto;min-height:260px;}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.news-card--lead .news-body{justify-content:center;padding:32px 34px;}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  font-size:12px;font-weight:600;color:var(--brand-deep);
  background:var(--brand-soft);border-radius:var(--radius-pill);padding:4px 12px;
}
.news-title{font-size:17px;font-weight:600;line-height:1.5;}
.news-title a{color:var(--ink);}
.news-title a:hover{color:var(--brand-deep);}
.news-card--lead .news-title{font-size:24px;}
.news-excerpt{
  color:var(--ink-2);font-size:14px;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--ink-3);padding-top:6px;border-top:1px dashed var(--line);
}
.news-empty{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);
  padding:48px 24px;text-align:center;
}
.news-empty__art{
  width:96px;height:96px;margin:0 auto 18px;border-radius:24px;
  background:var(--brand-soft-2);border:1.5px solid rgba(47,191,113,.22);
}
.news-empty p{color:var(--ink-2);margin-bottom:18px;}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  overflow:hidden;position:relative;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item:hover{box-shadow:var(--shadow);}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:0;background:var(--brand);
  transition:width .22s ease;
}
.faq-item.is-open{border-color:rgba(47,191,113,.4);}
.faq-item.is-open::before{width:4px;}
.faq-q{
  width:100%;text-align:left;padding:20px 56px 20px 24px;font-size:16px;font-weight:600;
  color:var(--ink);position:relative;transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-deep);}
.faq-q::after{
  content:"";position:absolute;right:24px;top:50%;width:10px;height:10px;
  border-right:2px solid var(--brand-dark);border-bottom:2px solid var(--brand-dark);
  transform:translateY(-70%) rotate(45deg);transition:transform .25s ease;
}
.faq-item.is-open .faq-q::after{transform:translateY(-30%) rotate(225deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a div{padding:0 24px 22px 24px;color:var(--ink-2);font-size:15px;line-height:1.75;}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--brand-soft);border:1px solid rgba(47,191,113,.22);
  border-radius:var(--radius-lg);padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{font-size:24px;margin-bottom:8px;}
.cta-band p{margin:0;color:var(--ink-2);font-size:15px;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#a8bcb1;margin-top:auto;}
.site-footer .wrap{padding-top:56px;padding-bottom:24px;}
.footer-grid{display:grid;grid-template-columns:5fr 3fr 4fr;gap:40px;}
.footer-brand__logo{font-size:18px;font-weight:700;color:#fff;margin-bottom:12px;}
.footer-brand__logo em{font-style:normal;color:var(--brand);}
.footer-brand p{font-size:14px;color:#9fb4a9;margin:0;line-height:1.8;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#a8bcb1;}
.footer-links a:hover{color:var(--brand);}
.footer-info{font-size:14px;color:#9fb4a9;line-height:1.9;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7f9489;
}

/* ---------- 移动导航 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:80;
  background:var(--surface);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 18px;
  box-shadow:0 2px 12px rgba(23,35,29,.05);
}
.topbar__brand{font-size:16px;font-weight:700;color:var(--ink);}
.topbar__brand em{font-style:normal;color:var(--brand-dark);}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:var(--bg);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .22s ease,opacity .22s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer{
  display:none;position:fixed;top:64px;left:0;right:0;z-index:79;
  background:var(--surface);border-bottom:1px solid var(--line);
  padding:16px 18px 24px;box-shadow:0 12px 24px rgba(23,35,29,.1);
  max-height:calc(100vh - 64px);overflow-y:auto;
}
.drawer.is-open{display:block;}
.drawer .side-menu__link{padding:14px 16px;font-size:16px;}
.drawer .side-cta{margin-top:18px;}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .wrap{padding:0 32px;}
  .hero__grid{gap:40px;}
  h1{font-size:36px;}
}
@media (max-width:991px){
  .side-nav{display:none;}
  .topbar{display:flex;}
  .main-area{margin-left:0;padding-top:64px;}
  .wrap{padding:0 20px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .hero{padding:44px 0 56px;}
  .hero__grid{grid-template-columns:1fr;gap:32px;}
  .hero__panel{order:-1;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  .pain{grid-template-columns:1fr;gap:28px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .news-grid{grid-template-columns:1fr;}
  .news-card--lead{flex-direction:column;}
  .news-card--lead .news-thumb{flex:none;}
  .news-card--lead .news-thumb img{min-height:0;aspect-ratio:16/9;}
  .news-card--lead .news-body{padding:22px 24px 24px;}
  .news-card--lead .news-title{font-size:19px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .stats-row .column{margin-bottom:16px;}
}
@media (max-width:560px){
  body{font-size:15px;}
  h1{font-size:26px;}
  h2{font-size:21px;}
  h3{font-size:18px;}
  .wrap{padding:0 16px;}
  .section{padding:40px 0;}
  .hero{padding:32px 0 44px;}
  .hero__actions{flex-direction:column;align-items:stretch;}
  .hero__actions .btn{width:100%;}
  .metric-list{grid-template-columns:1fr;gap:8px;}
  .metric{display:flex;align-items:center;justify-content:space-between;text-align:left;padding:12px 16px;}
  .metric__label{margin-top:0;}
  .pain-item{padding:18px;gap:12px;}
  .quote-card{padding:20px;}
  .news-body{padding:18px;}
  .cta-band__actions{width:100%;flex-direction:column;}
  .cta-band__actions .btn{width:100%;}
  .faq-q{padding:16px 48px 16px 18px;font-size:15px;}
  .faq-a div{padding:0 18px 18px;}
  .section-head--split{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --brand:#2fbf71;
  --brand-dark:#25a55f;
  --brand-soft:#e8f7ef;
  --brand-line:rgba(47,191,113,.28);
  --accent:#ff8a3d;
  --ink:#17231d;
  --muted:#5c6b64;
  --line:#e4eae6;
  --bg:#f6f8f7;
  --white:#ffffff;
  --deep:#12211a;
  --radius:16px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow:0 6px 20px rgba(23,35,29,.06);
  --shadow-hover:0 12px 28px rgba(23,35,29,.10);
  --pad-desktop:48px;
  --pad-tablet:32px;
  --pad-mobile:20px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-dark);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.row{max-width:none;margin-left:0;margin-right:0;}

/* 布局骨架 */
.site{display:flex;min-height:100vh;align-items:flex-start;}
.sidebar{
  flex:0 0 232px;
  width:232px;
  position:sticky;
  top:0;
  height:100vh;
  overflow-y:auto;
  background:var(--white);
  border-right:1px solid var(--line);
  padding:26px 18px 24px;
  display:flex;
  flex-direction:column;
  gap:22px;
  z-index:50;
}
.side-brand{display:block;padding:0 6px;}
.side-brand__logo{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.2px;
  line-height:1.4;
}
.side-brand__logo em{
  font-style:normal;
  color:var(--brand-dark);
}
.side-brand__sub{
  margin-top:6px;
  font-size:12px;
  line-height:1.6;
  color:var(--muted);
}
.side-menu{display:flex;flex-direction:column;gap:6px;}
.side-menu__label{
  font-size:12px;
  font-weight:500;
  color:var(--muted);
  padding:0 8px 6px;
}
.side-menu__link{
  position:relative;
  display:block;
  padding:11px 12px 11px 16px;
  border-radius:10px;
  font-size:15px;
  color:var(--ink);
  border-left:3px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.side-menu__link:hover{
  background:var(--brand-soft);
  color:var(--brand-dark);
}
.side-menu__link.is-active{
  background:var(--brand-soft);
  color:var(--brand-dark);
  border-left-color:var(--brand);
  font-weight:600;
}
.side-cta{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding:0 4px;}
.side-cta .btn{width:100%;}
.side-contact{
  font-size:12px;
  line-height:1.7;
  color:var(--muted);
  padding:12px 12px;
  background:var(--bg);
  border-radius:12px;
  border:1px solid var(--line);
}
.side-contact strong{color:var(--ink);font-weight:600;display:block;margin-bottom:2px;font-size:13px;}

/* 移动端顶栏 */
.mobile-bar{display:none;}
.main-col{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}
.content{
  flex:1 0 auto;
  width:100%;
  max-width:1120px;
  margin:0 auto;
  padding:36px var(--pad-desktop) 76px;
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--radius-pill);
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  white-space:nowrap;
}
.btn--primary{
  background:var(--brand);
  color:#fff;
  box-shadow:0 6px 16px rgba(47,191,113,.24);
}
.btn--primary:hover{
  background:var(--brand-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 24px rgba(47,191,113,.28);
}
.btn--ghost{
  background:transparent;
  color:var(--brand-dark);
  border-color:var(--brand);
}
.btn--ghost:hover{
  background:var(--brand-soft);
  color:var(--brand-dark);
  transform:translateY(-2px);
}
.btn--accent{
  background:var(--accent);
  color:#fff;
  box-shadow:0 6px 16px rgba(255,138,61,.24);
}
.btn--accent:hover{
  background:#f07a2c;
  color:#fff;
  transform:translateY(-2px);
}
.btn--text{
  height:auto;
  padding:0;
  border:0;
  background:transparent;
  color:var(--brand-dark);
  font-weight:600;
  border-radius:0;
  box-shadow:none;
}
.btn--text span{border-bottom:2px solid var(--brand-line);padding-bottom:2px;}
.btn--text:hover{color:var(--brand);transform:none;box-shadow:none;}
.btn--text:hover span{border-bottom-color:var(--brand);}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}

/* Hero */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:46px 44px 44px;
  box-shadow:var(--shadow);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.12;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-60px;
  width:220px;
  height:220px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,191,113,.18),rgba(47,191,113,0) 70%);
}
.page-hero > *{position:relative;z-index:1;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-dark);
  background:var(--brand-soft);
  border:1px solid var(--brand-line);
  border-radius:var(--radius-pill);
  padding:5px 14px;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:42px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:.2px;
  margin-bottom:18px;
}
.page-hero .lead{
  font-size:17px;
  line-height:1.85;
  color:var(--muted);
  max-width:760px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:14px 36px;
  margin-top:32px;
  padding-top:24px;
  border-top:1px dashed var(--line);
}
.hero-fact{display:flex;flex-direction:column;gap:2px;}
.hero-fact b{font-size:22px;color:var(--brand-dark);font-weight:700;line-height:1.3;}
.hero-fact span{font-size:13px;color:var(--muted);}

/* 板块 */
.section{margin-top:64px;}
.section-head{margin-bottom:32px;max-width:820px;}
.section-head h2{
  font-size:28px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:16px;
}
.section-head p{color:var(--muted);font-size:16px;}
.tag{
  display:inline-block;
  font-size:12px;
  font-weight:500;
  color:var(--brand-dark);
  background:var(--brand-soft);
  border-radius:var(--radius-pill);
  padding:4px 12px;
  margin-bottom:14px;
}

/* 简介 */
.intro-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 30px;
  box-shadow:var(--shadow);
}
.intro-card p{color:var(--muted);font-size:16px;}
.intro-card p + p{margin-top:14px;}

/* 图文小节 */
.feature-row{align-items:center;}
.feature-row + .feature-row{margin-top:56px;}
.feature-text h3{font-size:20px;font-weight:600;margin-bottom:14px;}
.feature-text p{color:var(--muted);}
.feature-figure{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--brand-soft);
  border:1px solid var(--brand-line);
  box-shadow:var(--shadow);
}
.feature-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius);
}
.feature-figure figcaption{
  font-size:13px;
  color:var(--muted);
  padding:12px 16px 14px;
  background:var(--white);
}
.mini-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.mini-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--muted);
}
.mini-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--brand);
}

/* 要点列表 */
.point-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px 24px;
}
.point-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px 18px;
  font-size:15px;
  color:var(--muted);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.point-list li:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:var(--brand-line);
}
.point-list i{
  color:var(--brand);
  font-size:15px;
  margin-top:5px;
  flex:0 0 auto;
}
.point-list b{color:var(--ink);font-weight:600;}

/* FAQ */
.accordion{border:none;background:transparent;margin:0;}
.accordion-item{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  margin-bottom:12px;
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-title{
  position:relative;
  display:block;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  padding:17px 56px 17px 22px;
  border:none;
  border-left:3px solid transparent;
  background:transparent;
  transition:background-color .2s ease,border-color .2s ease,color .2s ease;
}
.accordion-title:hover,.accordion-title:focus{
  background:var(--brand-soft);
  color:var(--brand-dark);
}
.accordion-title::before{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:13px;
  color:var(--brand-dark);
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  transition:transform .2s ease;
}
.accordion-item.is-active .accordion-title{
  background:var(--brand-soft);
  border-left-color:var(--brand);
  color:var(--brand-dark);
}
.accordion-item.is-active .accordion-title::before{content:"\f068";}
.accordion-content{
  display:none;
  border:none;
  background:var(--white);
  padding:0 22px 18px 22px;
  font-size:15px;
  line-height:1.75;
  color:var(--muted);
}
.accordion-item.is-active .accordion-content{display:block;}

/* CTA 条 */
.cta-band{
  margin-top:64px;
  background:var(--brand-soft);
  border:1px solid var(--brand-line);
  border-radius:var(--radius-lg);
  padding:32px 34px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
}
.cta-band h2{font-size:22px;font-weight:700;margin-bottom:8px;}
.cta-band p{color:var(--muted);font-size:15px;max-width:640px;}

/* 页脚 */
.site-footer{
  margin-top:auto;
  background:var(--deep);
  color:#c9d6cf;
  padding:52px 0 26px;
}
.site-footer .wrap{
  width:100%;
  max-width:1120px;
  margin:0 auto;
  padding:0 var(--pad-desktop);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:36px;
}
.footer-brand__logo{
  font-size:18px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.footer-brand__logo em{font-style:normal;color:var(--brand);}
.footer-brand p{font-size:14px;line-height:1.85;color:#9fb1a8;}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:14px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#c9d6cf;font-size:14px;}
.footer-links a:hover{color:var(--brand);}
.footer-info{font-size:14px;line-height:1.9;color:#9fb1a8;}
.footer-bottom{
  margin-top:36px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:#8ea096;
}

/* 响应式 */
@media (max-width:1199px){
  .content{padding-left:var(--pad-tablet);padding-right:var(--pad-tablet);}
  .site-footer .wrap{padding-left:var(--pad-tablet);padding-right:var(--pad-tablet);}
}
@media (max-width:991px){
  .site{display:block;}
  .mobile-bar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    position:sticky;
    top:0;
    z-index:70;
    height:64px;
    padding:0 20px;
    background:var(--white);
    border-bottom:1px solid var(--line);
    box-shadow:0 2px 12px rgba(23,35,29,.05);
  }
  .mobile-brand{font-size:16px;font-weight:700;color:var(--ink);}
  .mobile-brand em{font-style:normal;color:var(--brand-dark);}
  .nav-toggle{
    width:44px;
    height:44px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border:1px solid var(--line);
    background:var(--bg);
    border-radius:12px;
    color:var(--ink);
    font-size:17px;
    cursor:pointer;
  }
  .nav-toggle:hover{border-color:var(--brand-line);color:var(--brand-dark);}
  .sidebar{
    position:fixed;
    top:64px;
    left:0;
    right:0;
    width:100%;
    flex:none;
    height:auto;
    max-height:calc(100vh - 64px);
    border-right:none;
    border-bottom:1px solid var(--line);
    box-shadow:0 14px 30px rgba(23,35,29,.12);
    transform:translateY(-10px);
    opacity:0;
    visibility:hidden;
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
    padding:20px 20px 24px;
  }
  .site.nav-open .sidebar{
    transform:translateY(0);
    opacity:1;
    visibility:visible;
  }
  .side-cta{margin-top:8px;}
  .content{padding-top:28px;padding-bottom:56px;}
  .page-hero{padding:34px 26px 32px;}
  .page-hero h1{font-size:32px;}
  .page-hero .lead{font-size:16px;}
  .section{margin-top:48px;}
  .section-head h2{font-size:24px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .point-list{grid-template-columns:1fr;}
  .feature-row + .feature-row{margin-top:44px;}
  .feature-figure{margin-top:20px;}
  .feature-row.is-reverse .feature-figure{margin-top:0;margin-bottom:20px;}
}
@media (max-width:575px){
  .content{padding-left:var(--pad-mobile);padding-right:var(--pad-mobile);}
  .site-footer .wrap{padding-left:var(--pad-mobile);padding-right:var(--pad-mobile);}
  .page-hero{padding:28px 20px 26px;}
  .page-hero h1{font-size:28px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-facts{gap:16px 24px;}
  .intro-card{padding:22px 18px;}
  .point-list li{padding:14px 15px;}
  .cta-band{padding:24px 20px;border-radius:16px;}
  .accordion-title{padding:15px 48px 15px 16px;font-size:15px;}
  .accordion-title::before{right:16px;}
  .accordion-content{padding:0 16px 16px 16px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: article */
:root{
  --brand:#2fbf71;
  --brand-strong:#23a35f;
  --brand-soft:rgba(47,191,113,.12);
  --accent:#ff8a3d;
  --ink:#17231d;
  --ink-soft:#243029;
  --muted:#5c6b64;
  --line:#e4eae6;
  --bg:#f6f8f7;
  --dark:#12211a;
  --radius-s:12px;
  --radius:16px;
  --radius-l:20px;
  --shadow:0 6px 20px rgba(23,35,29,.06);
  --shadow-hover:0 12px 28px rgba(23,35,29,.10);
  --sidebar-w:232px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::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:1.8;
  color:var(--ink);
  background:#fff;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-strong);text-decoration:none;transition:color .18s ease,border-color .18s ease}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:22px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 48px}

/* 布局骨架 */
.layout{display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);min-height:100vh;align-items:start}
.sidebar{
  position:sticky;top:0;height:100vh;overflow-y:auto;
  background:#fff;border-right:1px solid var(--line);
  padding:26px 18px 24px;display:flex;flex-direction:column;gap:22px;
}
.sidebar__brand{display:block;padding:0 6px}
.sidebar__logo{display:block;font-size:19px;font-weight:700;color:var(--ink);line-height:1.4;letter-spacing:.2px}
.sidebar__logo em{font-style:normal;color:var(--brand);font-weight:800}
.sidebar__sub{display:block;margin-top:6px;font-size:12px;color:var(--muted);line-height:1.6}
.side-menu{display:flex;flex-direction:column;gap:4px}
.side-menu__label{font-size:12px;color:var(--muted);margin:0 0 6px 14px;letter-spacing:.4px}
.side-menu__link{position:relative;display:block;padding:11px 14px 11px 16px;border-radius:10px;font-size:15px;font-weight:500;color:#2b3a33;transition:background .18s ease,color .18s ease}
.side-menu__link:hover{background:var(--bg);color:var(--brand-strong)}
.side-menu__link.is-active{background:var(--brand-soft);color:#1c7d4c;font-weight:600}
.side-menu__link.is-active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:20px;border-radius:0 3px 3px 0;background:var(--brand)}
.sidebar__foot{margin-top:auto;border-top:1px solid var(--line);padding-top:18px;display:flex;flex-direction:column;gap:12px}
.sidebar__foot p{font-size:13px;color:var(--muted);line-height:1.7;margin:0}
.topbar{display:none}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(47,191,113,.24)}
.btn--primary:hover{background:var(--brand-strong);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(47,191,113,.28)}
.btn--ghost{background:transparent;color:var(--brand-strong);border-color:var(--brand)}
.btn--ghost:hover{background:var(--brand-soft);color:var(--brand-strong)}
.btn--block{width:100%;padding:0 16px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-strong);border-bottom:2px solid rgba(47,191,113,.35);padding-bottom:2px}
.text-link:hover{color:var(--brand);border-color:var(--brand)}

/* 主内容区 */
.content{padding:0 48px}
.content__inner{max-width:1120px;margin:0 auto;padding:32px 0 0}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding:4px 0 18px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand-strong)}
.breadcrumb__sep{color:#b9c4be}
.breadcrumb__cur{color:var(--ink-soft);font-weight:500;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 文章头部 */
.article-head{border-bottom:1px solid var(--line);padding-bottom:26px;margin-bottom:28px}
.article-title{font-size:42px;line-height:1.32;font-weight:700;letter-spacing:.2px;margin-bottom:18px}
.article-lead{font-size:16px;color:var(--muted);line-height:1.85;margin-bottom:20px;max-width:820px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--muted)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:var(--brand-soft);color:#1c7d4c;font-size:13px;font-weight:600;border:1px solid rgba(47,191,113,.22)}

/* 封面 */
.article-cover{margin:0 0 36px}
.article-cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius);
  background:var(--bg);border:1px solid var(--line);box-shadow:var(--shadow);
}
.article-cover figcaption{font-size:13px;color:var(--muted);margin-top:10px;text-align:center}

/* 正文阅读区 */
.article-body{max-width:760px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--ink-soft)}
.article-body p{margin:0 0 18px}
.article-body h2{font-size:28px;line-height:1.45;font-weight:700;color:var(--ink);margin:42px 0 16px;padding-left:14px;border-left:4px solid var(--brand)}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink);margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--brand)}
.article-body strong{color:var(--ink);font-weight:600}
.article-body a{color:var(--brand-strong);border-bottom:1px solid rgba(47,191,113,.45)}
.article-body a:hover{color:var(--brand);border-color:var(--brand)}
.article-body blockquote{margin:26px 0;padding:18px 22px;background:var(--bg);border-left:4px solid var(--brand);border-radius:0 var(--radius-s) var(--radius-s) 0;color:var(--muted)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius);margin:22px 0;background:var(--bg);border:1px solid var(--line);box-shadow:var(--shadow)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:22px 0}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:11px 12px;text-align:left;vertical-align:top}
.article-body th{background:var(--bg);font-weight:600;color:var(--ink)}
.article-body code{background:var(--bg);border:1px solid var(--line);padding:2px 6px;border-radius:6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}

/* 空态 */
.empty-state{max-width:640px;margin:40px auto;text-align:center;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:44px 28px}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px;color:var(--ink)}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* 相关推荐 */
.related{margin-top:56px;padding-top:36px;border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.section-title{font-size:26px;font-weight:700;color:var(--ink);line-height:1.4}
.section-desc{font-size:14px;color:var(--muted);margin-top:6px}
.related-grid{margin-left:-12px;margin-right:-12px;display:flex;flex-flow:row wrap}
.related-grid>.column{padding:0 12px 24px}
.mini-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(47,191,113,.35)}
.mini-card__thumb{display:block;background:var(--bg)}
.mini-card__thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg)}
.mini-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.mini-card__tag{align-self:flex-start;font-size:12px;font-weight:600;color:#1c7d4c;background:var(--brand-soft);border-radius:999px;padding:3px 10px}
.mini-card__title{font-size:17px;font-weight:600;line-height:1.55;color:var(--ink)}
.mini-card__title a{color:inherit;border:0}
.mini-card__title a:hover{color:var(--brand-strong)}
.mini-card__desc{font-size:14px;color:var(--muted);line-height:1.75;margin:0}
.mini-card__foot{margin-top:auto;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.back-row{margin:8px 0 64px}

/* 页脚 */
.site-footer{background:var(--dark);color:#c9d6cf;margin-top:0}
.site-footer .wrap{padding-top:56px;padding-bottom:26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
.footer-brand__logo{font-size:19px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.2px}
.footer-brand__logo em{font-style:normal;color:var(--brand)}
.footer-brand p{font-size:14px;line-height:1.85;color:#9fb0a7;margin:0;max-width:360px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#9fb0a7}
.footer-links a:hover{color:var(--brand)}
.footer-info{font-size:14px;line-height:2;color:#9fb0a7}
.footer-bottom{
  margin-top:40px;border-top:1px solid rgba(255,255,255,.10);padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8093 89;
  color:#809389;
}

/* 平板 */
@media (max-width:1200px){
  .wrap{padding:0 32px}
  .content{padding:0 32px}
  .article-title{font-size:38px}
}
/* 移动端导航切换 */
@media (max-width:991px){
  .layout{display:block}
  .topbar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:sticky;top:0;z-index:70;height:64px;padding:0 20px;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 12px rgba(23,35,29,.05);
  }
  .topbar__brand{font-size:16px;font-weight:700;color:var(--ink)}
  .topbar__brand em{font-style:normal;color:var(--brand)}
  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;min-width:44px;padding:0 14px;border-radius:999px;
    border:1.5px solid var(--line);background:#fff;color:var(--ink);font-size:14px;font-weight:600;cursor:pointer;
  }
  .nav-toggle:hover{border-color:var(--brand);color:var(--brand-strong)}
  .sidebar{
    position:fixed;top:64px;left:0;right:0;height:auto;max-height:calc(100vh - 64px);
    border-right:0;border-bottom:1px solid var(--line);box-shadow:0 18px 30px rgba(23,35,29,.12);
    z-index:65;opacity:0;transform:translateY(-10px);pointer-events:none;
    transition:opacity .22s ease,transform .22s ease;
  }
  .sidebar.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .sidebar__foot{margin-top:6px}
  .content{padding:0 20px}
  .content__inner{padding:24px 0 0}
  .article-title{font-size:28px;margin-bottom:14px}
  .article-lead{font-size:15px}
  .article-body h2{font-size:22px;margin-top:32px}
  .article-body h3{font-size:18px}
  .wrap{padding:0 20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .section-head{flex-direction:column;align-items:flex-start;gap:6px}
  .related-grid{margin-left:0;margin-right:0}
  .related-grid>.column{padding:0 0 18px}
  .back-row{margin-bottom:44px}
}
@media (max-width:575px){
  .article-title{font-size:26px}
  .article-meta{gap:10px}
  .btn{width:100%}
  .article-cover img{aspect-ratio:4/3}
  .site-footer .wrap{padding-top:40px}
}

/* roulang page: category2 */
:root{
  --brand:#2fbf71;
  --brand-dark:#23a25e;
  --brand-soft:rgba(47,191,113,.12);
  --brand-line:rgba(47,191,113,.28);
  --accent:#ff8a3d;
  --accent-soft:rgba(255,138,61,.12);
  --ink:#17231d;
  --muted:#5c6b64;
  --line:#e4eae6;
  --bg:#f6f8f7;
  --white:#ffffff;
  --deep:#12211a;
  --radius:16px;
  --radius-sm:12px;
  --radius-lg:20px;
  --shadow:0 6px 20px rgba(23,35,29,.06);
  --shadow-hover:0 12px 28px rgba(23,35,29,.10);
  --side-w:232px;
  --gap:32px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;color:var(--ink)}
h1{font-size:40px;letter-spacing:0}
h2{font-size:28px}
h3{font-size:20px;font-weight:600}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:var(--brand-soft)}

.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 48px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- 布局骨架 ---------- */
.shell{display:grid;grid-template-columns:var(--side-w) minmax(0,1fr);min-height:100vh;align-items:start}
.sidebar{
  position:sticky;top:0;
  height:100vh;
  display:flex;flex-direction:column;
  background:var(--white);
  border-right:1px solid var(--line);
  padding:26px 18px 22px;
  overflow-y:auto;
}
.main-col{min-width:0;display:flex;flex-direction:column;min-height:100vh}

/* ---------- 侧栏品牌 ---------- */
.brand{display:block;padding:6px 10px 20px;border-bottom:1px solid var(--line);margin-bottom:18px}
.brand__logo{font-size:19px;font-weight:700;letter-spacing:.2px;line-height:1.4;color:var(--ink)}
.brand__logo em{font-style:normal;color:var(--brand)}
.brand__sub{margin-top:6px;font-size:12px;line-height:1.6;color:var(--muted)}

.side-menu__label{font-size:12px;font-weight:500;color:var(--muted);padding:0 12px 8px;letter-spacing:.4px}
.side-menu{display:flex;flex-direction:column;gap:4px}
.side-menu__link{
  position:relative;display:block;
  padding:11px 14px 11px 18px;
  border-radius:var(--radius-sm);
  font-size:15px;color:var(--ink);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.side-menu__link::before{
  content:"";position:absolute;left:6px;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:20px;border-radius:3px;background:var(--brand);
  transition:transform .2s ease;
}
.side-menu__link:hover{background:var(--bg);color:var(--ink)}
.side-menu__link:hover::before{transform:translateY(-50%) scaleY(.5)}
.side-menu__link.is-active{background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
.side-menu__link.is-active::before{transform:translateY(-50%) scaleY(1)}

.side-cta{margin-top:auto;padding:18px 10px 0;border-top:1px solid var(--line)}
.side-support{font-size:12px;line-height:1.7;color:var(--muted);padding:12px 10px 0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  text-align:center;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(47,191,113,.24)}
.btn--primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(47,191,113,.28)}
.btn--ghost{background:transparent;color:var(--brand-dark);border-color:var(--brand)}
.btn--ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px)}
.btn--sm{height:42px;padding:0 18px;font-size:14px}
.btn--block{width:100%}
.btn:active{transform:translateY(0)}

.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-dark);
  border-bottom:2px solid transparent;padding-bottom:2px;
}
.link-more:hover{border-bottom-color:var(--brand);color:var(--brand-dark)}
.link-more i{font-size:12px;transition:transform .2s ease}
.link-more:hover i{transform:translateX(3px)}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{display:none}
.backdrop{display:none}

/* ---------- 页头横幅 ---------- */
.page-banner{
  position:relative;overflow:hidden;
  margin:32px 0 0;
  padding:52px 48px 48px;
  border-radius:24px;
  background:#eef5f0;
}
.page-banner__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.16;
}
.page-banner__dots{
  position:absolute;right:-40px;top:-40px;width:280px;height:280px;
  background-image:radial-gradient(var(--brand) 1.4px,transparent 1.4px);
  background-size:16px 16px;opacity:.08;
}
.page-banner__inner{position:relative;z-index:2;max-width:780px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-dark);
  background:rgba(255,255,255,.78);border:1px solid var(--brand-line);
  padding:5px 14px;border-radius:999px;margin-bottom:18px;
}
.kicker i{font-size:11px}
.page-banner h1{font-size:42px;margin-bottom:18px}
.page-banner__lead{font-size:17px;line-height:1.85;color:var(--muted);max-width:660px}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* ---------- 板块 ---------- */
.section{padding:80px 0 0}
.section--tight{padding-top:56px}
.section--last{padding-bottom:80px}
.section-head{margin-bottom:32px;max-width:760px}
.section-head__title{font-size:28px}
.section-head__desc{margin-top:14px;color:var(--muted);font-size:16px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}

.panel{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
  padding:32px;
}
.panel--accent{border-top:4px solid var(--brand)}

/* ---------- 指标条 ---------- */
.metric-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;margin-top:28px;
}
.metric{background:var(--white);padding:26px 22px;transition:background .2s ease}
.metric:hover{background:#fbfdfc}
.metric__num{display:block;font-size:30px;font-weight:700;color:var(--accent);line-height:1.2}
.metric__num small{font-size:15px;font-weight:600;color:var(--muted);margin-left:4px}
.metric__label{display:block;margin-top:8px;font-size:14px;color:var(--muted)}

/* ---------- 时间线 ---------- */
.timeline{display:grid;gap:40px;margin-top:8px}
.tl-item{display:grid;grid-template-columns:168px minmax(0,1fr);gap:32px;align-items:start}
.tl-rail{position:relative;padding-top:4px}
.tl-rail::after{
  content:"";position:absolute;left:25px;top:60px;bottom:-40px;width:2px;
  background:linear-gradient(180deg,var(--brand-line),rgba(47,191,113,.06));
}
.tl-item:last-child .tl-rail::after{display:none}
.tl-node{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;border-radius:50%;
  background:var(--brand-soft);border:1.5px solid var(--brand-line);
  color:var(--brand-dark);font-size:17px;font-weight:700;
}
.tl-tag{
  display:block;margin-top:12px;
  font-size:13px;font-weight:600;color:var(--brand-dark);letter-spacing:.4px;
}
.tl-rail__note{display:block;margin-top:6px;font-size:12px;color:var(--muted)}
.tl-body{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:28px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.tl-body:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.tl-body h3{margin-bottom:12px}
.tl-body p{color:var(--muted)}
.tl-media{
  margin:20px 0 0;border-radius:var(--radius);overflow:hidden;
  background:#eef5f0;border:1px solid var(--line);
}
.tl-media img{width:100%;aspect-ratio:16/9;object-fit:cover}

.dot-list{margin-top:18px;display:grid;gap:10px}
.dot-list li{position:relative;padding-left:20px;font-size:15px;color:var(--ink)}
.dot-list li::before{
  content:"";position:absolute;left:4px;top:12px;
  width:7px;height:7px;border-radius:50%;background:var(--accent);
}

/* ---------- 要点清单 ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 32px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink)}
.check-list i{
  flex:0 0 auto;margin-top:5px;
  width:22px;height:22px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-dark);font-size:11px;
}
.check-list span{color:var(--muted);display:block;font-size:14px;margin-top:2px}

/* ---------- 小卡 ---------- */
.mini-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.mini-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .25s ease,transform .25s ease;
}
.mini-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.mini-card__media{background:#eef5f0;border-bottom:1px solid var(--line)}
.mini-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mini-card__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.mini-card h3{font-size:17px;line-height:1.5}
.mini-card p{font-size:14px;color:var(--muted);margin:0}
.badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  font-size:12px;font-weight:600;color:var(--brand-dark);
  background:var(--brand-soft);border-radius:999px;padding:4px 12px;
}
.badge--accent{color:#b85818;background:var(--accent-soft)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;margin-top:8px}
.faq-item{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-sm);
  overflow:hidden;position:relative;transition:border-color .2s ease,background .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 .28s ease;
}
.faq-item.is-open{background:var(--white);border-color:var(--brand-line)}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;cursor:pointer;text-align:left;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-dark)}
.faq-q i{font-size:13px;color:var(--brand);transition:transform .28s ease}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height .32s ease,opacity .28s ease,padding .28s ease;
  padding:0 22px;
}
.faq-item.is-open .faq-a{max-height:560px;opacity:1;padding:0 22px 20px}
.faq-a p{font-size:15px;line-height:1.75;color:var(--muted)}

/* ---------- CTA 条 ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--brand-soft);border:1px solid var(--brand-line);
  border-radius:var(--radius-lg);padding:34px 38px;
}
.cta-band h2{font-size:24px;margin-bottom:10px}
.cta-band p{color:var(--muted);font-size:15px;max-width:560px}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:80px;background:var(--deep);color:#cbd8d1;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.footer-brand__logo{font-size:19px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand__logo em{font-style:normal;color:var(--brand)}
.footer-brand p{font-size:14px;line-height:1.8;color:#9db0a6;max-width:400px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:#9db0a6}
.footer-links a:hover{color:var(--brand)}
.footer-info{font-size:14px;line-height:1.9;color:#9db0a6}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8398 8d;
  color:#83988d;
}

/* ---------- 断点 ---------- */
@media (max-width:1200px){
  .wrap{padding:0 32px}
  .page-banner{padding:46px 36px 42px}
  h1{font-size:36px}
  .page-banner h1{font-size:36px}
}
@media (max-width:991px){
  .shell{display:block}
  .sidebar{display:none}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:sticky;top:0;z-index:60;
    height:64px;padding:0 20px;
    background:rgba(255,255,255,.96);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(8px);
  }
  .mobile-bar__brand{font-size:16px;font-weight:700;color:var(--ink)}
  .mobile-bar__brand em{font-style:normal;color:var(--brand)}
  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
    background:var(--white);color:var(--ink);cursor:pointer;
  }
  .nav-toggle:hover{border-color:var(--brand);color:var(--brand-dark)}
  .drawer{
    position:fixed;left:0;right:0;top:0;z-index:80;
    background:var(--white);border-bottom:1px solid var(--line);
    padding:18px 20px 24px;
    transform:translateY(-104%);transition:transform .3s ease;
    box-shadow:0 18px 40px rgba(23,35,29,.14);
  }
  .drawer.is-open{transform:translateY(0)}
  .drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
  .drawer__close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--white);cursor:pointer}
  .drawer .side-menu__link{padding:13px 14px 13px 18px;font-size:16px}
  .drawer__cta{margin-top:18px}
  .backdrop{
    display:block;position:fixed;inset:0;z-index:70;background:rgba(18,33,26,.42);
    opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
  }
  .backdrop.is-open{opacity:1;visibility:visible}
  .wrap{padding:0 32px}
  .section{padding-top:56px}
  .metric-bar{grid-template-columns:repeat(2,1fr)}
  .tl-item{grid-template-columns:132px minmax(0,1fr);gap:22px}
  .mini-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
  .site-footer{margin-top:56px}
}
@media (max-width:767px){
  .page-banner{padding:36px 24px 34px;border-radius:20px}
  h1{font-size:30px}
  .page-banner h1{font-size:30px}
  .page-banner__lead{font-size:16px}
  h2{font-size:23px}
  .section-head__title{font-size:23px}
  .panel{padding:22px}
  .check-list{grid-template-columns:1fr}
  .mini-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:stretch;padding:26px 22px;text-align:left}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .tl-item{grid-template-columns:1fr;gap:16px}
  .tl-rail{display:flex;align-items:center;gap:12px;padding-top:0}
  .tl-rail::after{display:none}
  .tl-tag{margin-top:0}
  .tl-rail__note{display:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575px){
  .wrap{padding:0 20px}
  .section{padding-top:40px}
  .section--last{padding-bottom:52px}
  .metric-bar{grid-template-columns:1fr}
  .metric{padding:20px}
  .banner-actions .btn{width:100%}
  .side-cta .btn{width:100%}
  .tl-body{padding:20px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-item.is-open .faq-a{padding:0 18px 18px}
  .site-footer{margin-top:40px;padding-top:40px}
}