/* roulang page: index */
:root{
  --brand-900:#123C33;
  --brand-700:#185749;
  --brand-500:#1E7A63;
  --accent-500:#C9F26B;
  --accent-soft:#EAF7C8;
  --warm-500:#D9784A;
  --bg:#F7F2E8;
  --surface:#FFFDF8;
  --ink:#16231F;
  --muted:#5F6F68;
  --line:#D9E1D8;
  --focus:#7DA62D;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow-1:0 10px 28px rgba(18,60,51,.07);
  --shadow-2:0 16px 36px rgba(18,60,51,.12);
  --wrap:1240px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--brand-900);font-weight:800;line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand-900);text-decoration:underline;text-underline-offset:4px;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:6px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.section{padding:76px 0;}
.section-sm{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-soft);color:var(--brand-900);
  border-radius:var(--r-pill);padding:6px 14px;
  font-size:13px;font-weight:700;letter-spacing:.04em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--focus);}
h2.h-section{font-size:clamp(1.5rem,2.6vw,2.2rem);line-height:1.25;margin:16px 0 12px;}
.sub{color:var(--muted);font-size:16px;line-height:1.8;max-width:720px;}

/* 按钮 */
.btn-brand,.btn-ghost,.btn-lime{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:12px;font-size:15px;font-weight:700;
  border:1px solid transparent;text-decoration:none;line-height:1.2;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-brand{background:var(--brand-900);color:#fff;box-shadow:0 8px 20px rgba(18,60,51,.18);}
.btn-brand:hover{background:var(--brand-700);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 12px 26px rgba(18,60,51,.24);}
.btn-ghost{background:transparent;color:var(--brand-900);border-color:var(--brand-700);}
.btn-ghost:hover{background:var(--accent-soft);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.btn-lime{background:var(--accent-500);color:var(--brand-900);}
.btn-lime:hover{background:#D8F787;color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.btn-brand:active,.btn-ghost:active,.btn-lime:active{transform:translateY(0);}
.link-more{font-size:14px;font-weight:700;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;}
.link-more::after{content:"›";font-size:16px;line-height:1;transition:transform .18s ease;}
.link-more:hover{text-decoration:none;color:var(--brand-900);}
.link-more:hover::after{transform:translateX(3px);}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,253,248,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(18,60,51,.10);}
.nav-top{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  grid-template-areas:"logo search actions";
  align-items:center;
  gap:26px;
  padding:14px 0 10px;
}
.brand{display:inline-flex;align-items:center;gap:10px;grid-area:logo;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;
  background:var(--brand-900);color:var(--accent-500);
  display:grid;place-items:center;font-size:20px;font-weight:800;
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-text strong{font-size:17px;font-weight:800;color:var(--brand-900);letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:12px;font-weight:600;color:var(--brand-500);letter-spacing:.2em;}
.nav-search{
  grid-area:search;justify-self:center;
  display:flex;align-items:center;gap:10px;
  width:100%;max-width:620px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);padding:6px 6px 6px 16px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,99,.14);}
.nav-search svg{flex:0 0 auto;color:var(--muted);}
.nav-search input{
  flex:1 1 auto;min-width:0;border:0;outline:none;background:transparent;
  font-size:15px;color:var(--ink);padding:6px 0;
}
.nav-search input::placeholder{color:#98A79F;}
.nav-search button{
  flex:0 0 auto;border:0;background:var(--brand-900);color:#fff;
  border-radius:var(--r-pill);padding:9px 20px;font-size:14px;font-weight:700;
  transition:background-color .2s ease;
}
.nav-search button:hover{background:var(--brand-700);}
.nav-actions{grid-area:actions;display:flex;align-items:center;gap:12px;}
.nav-actions .btn-brand{padding:11px 20px;font-size:14px;}
.nav-menu-btn{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand-900);
  align-items:center;justify-content:center;
}
.nav-menu-btn:hover{background:var(--accent-soft);}
.nav-cats{
  display:flex;align-items:center;gap:8px;
  padding:0 0 12px;overflow-x:auto;scrollbar-width:none;
}
.nav-cats::-webkit-scrollbar{display:none;}
.cat-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--brand-700);
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.cat-pill:hover{background:var(--accent-soft);color:var(--brand-900);text-decoration:none;}
.cat-pill.active{background:var(--accent-soft);color:var(--brand-900);border-color:var(--accent-500);}
.cat-pill.active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--focus);}

/* Hero */
.hero{position:relative;padding:60px 0 72px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(760px 380px at 82% 12%,rgba(201,242,107,.28),transparent 70%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1{font-size:clamp(2.25rem,4.2vw,3.6rem);line-height:1.15;font-weight:800;margin:18px 0 18px;}
.hero h1 .hl{color:var(--brand-500);}
.hero-lead{font-size:17px;color:var(--muted);line-height:1.85;max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:7px 15px;
  font-size:13px;font-weight:600;color:var(--brand-700);
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);box-shadow:0 0 0 3px rgba(201,242,107,.35);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:24px;box-shadow:var(--shadow-2);
}
.hero-panel{
  position:absolute;left:18px;bottom:18px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:16px 18px;
  box-shadow:var(--shadow-2);max-width:286px;
}
.hero-panel-title{font-size:13px;font-weight:800;color:var(--brand-900);letter-spacing:.04em;margin-bottom:10px;}
.hero-panel li{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);padding:5px 0;}
.hero-panel li span{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:var(--accent-soft);color:var(--brand-900);
  display:grid;place-items:center;font-size:11px;font-weight:800;
}

/* 三步 */
.steps{margin-top:40px;position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:30px;}
.steps::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,rgba(30,122,99,.15),rgba(30,122,99,.45),rgba(30,122,99,.15));
}
.step{position:relative;z-index:1;padding-right:8px;}
.step-num{
  width:52px;height:52px;border-radius:50%;
  background:var(--surface);border:2px solid var(--brand-500);
  color:var(--brand-900);display:grid;place-items:center;
  font-size:15px;font-weight:800;box-shadow:var(--shadow-1);
  margin-bottom:18px;
}
.step h3{font-size:1.2rem;margin-bottom:8px;}
.step p{color:var(--muted);font-size:15px;line-height:1.8;margin-bottom:12px;}

/* 案例证明 */
.proof-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:stretch;}
.quote-card{
  background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent-500);
  border-radius:var(--r-lg);padding:30px;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;justify-content:center;
}
.quote-card blockquote{margin:0;font-size:18px;line-height:1.9;color:var(--ink);}
.quote-card blockquote::before{content:"“";color:var(--brand-500);font-size:26px;font-weight:800;line-height:1;margin-right:2px;}
.quote-source{margin-top:18px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;}
.quote-source .dot{width:6px;height:6px;border-radius:50%;background:var(--warm-500);}
.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.metric{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;transition:transform .2s ease,box-shadow .2s ease;
}
.metric:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.metric strong{display:block;font-size:1.9rem;font-weight:800;color:var(--brand-900);line-height:1.15;margin-bottom:6px;}
.metric span{font-size:13px;color:var(--muted);}
.mini-cases{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px;}
.mini-case{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 20px;
}
.mini-case .bar{flex:0 0 auto;width:4px;border-radius:4px;align-self:stretch;background:var(--brand-500);}
.mini-case h4{font-size:15px;margin-bottom:4px;}
.mini-case p{font-size:13px;color:var(--muted);line-height:1.7;}

/* 最新信息 */
.section-news{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.news-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.news-card{
  display:flex;gap:18px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:18px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#C8D6CB;}
.news-thumb{flex:0 0 138px;width:138px;height:104px;border-radius:var(--r-md);overflow:hidden;background:#E7EDE5;}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{min-width:0;flex:1 1 auto;display:flex;flex-direction:column;}
.badge-soft{
  display:inline-flex;align-items:center;
  background:var(--accent-soft);color:var(--brand-900);
  border-radius:var(--r-pill);padding:3px 12px;
  font-size:12px;font-weight:700;margin-bottom:8px;align-self:flex-start;
}
.news-body h3{font-size:1.02rem;line-height:1.5;margin-bottom:8px;}
.news-body h3 a{color:var(--brand-900);}
.news-body h3 a:hover{color:var(--brand-500);text-decoration:none;}
.news-excerpt{
  font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:12px;
  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(--muted);}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  border:1px dashed #C6D3C9;border-radius:var(--r-lg);
  background:var(--bg);padding:52px 24px;text-align:center;
}
.empty-state svg{color:var(--brand-500);}
.empty-state p{color:var(--muted);font-size:15px;}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:340px minmax(0,1fr);gap:52px;align-items:start;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;border-left:3px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-left-color:var(--accent-500);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;
  padding:18px 22px;font-size:16px;font-weight:700;color:var(--brand-900);
  transition:background-color .2s ease;
}
.faq-q:hover{background:rgba(234,247,200,.5);}
.faq-icon{flex:0 0 auto;position:relative;width:20px;height:20px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-700);border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.faq-icon::before{top:9px;left:0;width:20px;height:2px;}
.faq-icon::after{top:0;left:9px;width:2px;height:20px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease;}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a > div{overflow:hidden;}
.faq-a p{padding:0 22px 20px;color:var(--muted);font-size:15px;line-height:1.85;}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-900);border-radius:28px;
  padding:52px;color:#E9F2EC;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(201,242,107,.10) 0 2px,transparent 2px 46px);
}
.cta-inner{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;}
.cta-inner h2{color:#fff;font-size:clamp(1.5rem,2.4vw,2rem);margin-bottom:10px;}
.cta-inner p{color:#BBD3C8;font-size:15px;line-height:1.8;max-width:620px;}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:14px;}
.cta-actions .text-link{color:var(--accent-500);font-size:14px;font-weight:700;}
.cta-actions .text-link:hover{color:#fff;}

/* 页脚 */
.site-footer{background:var(--brand-900);color:#C7DACE;margin-top:76px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:var(--accent-500);}
.site-footer .brand-mark{background:rgba(201,242,107,.14);color:var(--accent-500);}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.8;color:#A8C1B6;max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:#B7CCC1;}
.footer-col a:hover{color:var(--accent-500);text-decoration:none;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8FA99D;
}

/* 响应式 */
@media (max-width:1199.98px){
  .hero-grid{gap:40px;}
  .news-thumb{flex:0 0 116px;width:116px;height:92px;}
}
@media (max-width:991.98px){
  body{font-size:16px;}
  .nav-top{
    grid-template-columns:1fr auto;
    grid-template-areas:"logo actions" "search search";
    gap:12px;padding:12px 0 6px;
  }
  .nav-search{max-width:none;}
  .nav-actions .btn-brand{display:none;}
  .nav-menu-btn{display:inline-flex;}
  .nav-cats{display:none;padding-top:10px;}
  .nav-cats.open{display:flex;}
  .hero{padding:44px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:2;}
  .hero-lead{max-width:none;}
  .hero-panel{position:static;max-width:none;margin-top:16px;}
  .steps{grid-template-columns:1fr;gap:22px;}
  .steps::before{top:0;bottom:0;left:25px;right:auto;width:2px;height:auto;background:linear-gradient(180deg,rgba(30,122,99,.15),rgba(30,122,99,.45),rgba(30,122,99,.15));}
  .step{display:grid;grid-template-columns:52px 1fr;column-gap:18px;padding:0;}
  .step-num{grid-row:1 / span 4;margin-bottom:0;}
  .proof-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:24px;}
  .cta-band{padding:36px;}
  .cta-inner{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575.98px){
  .wrap{padding:0 18px;}
  .section{padding:48px 0;}
  .section-sm{padding:40px 0;}
  .brand-mark{width:38px;height:38px;font-size:18px;}
  .brand-text strong{font-size:15px;}
  .brand-text em{font-size:11px;letter-spacing:.14em;}
  .nav-search{padding:5px 5px 5px 14px;}
  .nav-search button{padding:8px 14px;font-size:13px;}
  .hero-cta .btn-brand,.hero-cta .btn-ghost{width:100%;}
  .metric-grid{grid-template-columns:1fr;}
  .mini-cases{grid-template-columns:1fr;}
  .news-card{flex-direction:column;}
  .news-thumb{width:100%;flex:0 0 auto;height:150px;}
  .cta-band{padding:26px 22px;border-radius:20px;}
  .cta-actions .btn-lime{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{margin-top:48px;padding:48px 0 24px;}
}

/* roulang page: category1 */
:root{
  --brand-900:#123C33;
  --brand-700:#185749;
  --brand-500:#1E7A63;
  --accent-500:#C9F26B;
  --accent-soft:#EAF7C8;
  --warm-500:#D9784A;
  --bg:#F7F2E8;
  --surface:#FFFDF8;
  --ink:#16231F;
  --muted:#5F6F68;
  --line:#D9E1D8;
  --focus:#7DA62D;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow-sm:0 10px 28px rgba(18,60,51,.07);
  --shadow-md:0 16px 36px rgba(18,60,51,.12);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::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:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:.01em;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;}
a:hover{color:var(--brand-900);text-decoration:underline;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--brand-900);font-weight:800;letter-spacing:.005em;}
h1{font-size:clamp(2.25rem,4.2vw,3.35rem);line-height:1.16;}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.28;}
h3{font-size:1.22rem;line-height:1.45;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:6px;}
.wrap{
  width:100%;
  max-width:1320px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:76px 0;}
.section-tight{padding:56px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.82rem;font-weight:700;letter-spacing:.14em;
  color:var(--brand-500);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:3px;border-radius:2px;background:var(--accent-500);}
.lead{font-size:1.06rem;color:var(--muted);line-height:1.85;max-width:64ch;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:38px;}
.section-head p{margin:10px 0 0;color:var(--muted);max-width:62ch;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,253,248,.94);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,background-color .22s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(18,60,51,.10);}
.nav-top{
  display:flex;align-items:center;gap:22px;
  padding:14px 0 10px;
}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:44px;height:44px;border-radius:14px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--brand-700),var(--brand-500));
  color:var(--accent-500);
  display:grid;place-items:center;
  font-weight:800;font-size:1.24rem;
  box-shadow:0 6px 16px rgba(18,60,51,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16;}
.brand-text strong{font-size:1.06rem;color:var(--brand-900);font-weight:800;letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:.82rem;color:var(--muted);letter-spacing:.24em;font-weight:600;}
.nav-search{
  flex:1 1 auto;max-width:600px;min-width:220px;
  display:flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:7px 7px 7px 18px;
  color:var(--muted);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,99,.12);}
.nav-search input[type="search"]{
  flex:1 1 auto;border:0;background:transparent;outline:none;
  font-size:.95rem;color:var(--ink);min-width:0;padding:6px 0;
}
.nav-search input::placeholder{color:#96A39C;}
.nav-search button{
  flex:0 0 auto;border:0;cursor:pointer;
  background:var(--brand-700);color:#fff;
  border-radius:var(--r-pill);
  padding:8px 20px;font-size:.9rem;font-weight:700;
  transition:background-color .18s ease,transform .18s ease;
}
.nav-search button:hover{background:var(--brand-900);transform:translateY(-1px);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand-700);color:#fff;
  border:1px solid var(--brand-700);
  border-radius:12px;
  padding:11px 22px;font-size:.94rem;font-weight:700;
  cursor:pointer;text-decoration:none;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-brand:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 10px 22px rgba(18,60,51,.20);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--brand-700);
  border:1px solid var(--brand-700);
  border-radius:12px;padding:11px 22px;
  font-size:.94rem;font-weight:700;text-decoration:none;
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:var(--accent-soft);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent-500);color:var(--brand-900);
  border:1px solid var(--accent-500);border-radius:12px;
  padding:12px 26px;font-size:.96rem;font-weight:800;text-decoration:none;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-accent:hover{background:#D8F88A;color:var(--brand-900);text-decoration:none;transform:translateY(-1px);box-shadow:0 12px 26px rgba(0,0,0,.18);}
.nav-menu-btn{
  display:none;background:transparent;border:1px solid var(--line);
  border-radius:12px;width:44px;height:44px;color:var(--brand-900);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-cats{
  display:flex;align-items:center;gap:10px;
  padding:6px 0 14px;
  flex-wrap:wrap;
}
.cat-pill{
  display:inline-flex;align-items:center;
  padding:8px 18px;border-radius:var(--r-pill);
  font-size:.92rem;font-weight:600;color:var(--brand-700);
  border:1px solid transparent;background:transparent;
  text-decoration:none;position:relative;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.cat-pill:hover{background:var(--accent-soft);color:var(--brand-900);text-decoration:none;}
.cat-pill.active{
  background:#fff;border-color:var(--line);
  color:var(--brand-900);font-weight:800;box-shadow:var(--shadow-sm);
}
.cat-pill.active::after{
  content:"";position:absolute;left:18px;right:18px;bottom:3px;height:3px;
  border-radius:2px;background:var(--accent-500);
}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:44px 0 60px;
  background:
    linear-gradient(180deg,rgba(247,242,232,.92),rgba(247,242,232,.98)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:.86rem;color:var(--muted);margin-bottom:22px;
}
.crumbs a{color:var(--brand-700);text-decoration:none;}
.crumbs a:hover{text-decoration:underline;color:var(--brand-900);}
.crumbs span.sep{color:#A9B6AE;}
.crumbs span.current{color:var(--ink);font-weight:700;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:48px;align-items:center;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--line);
  color:var(--brand-700);font-size:.86rem;font-weight:600;
  border-radius:var(--r-pill);padding:7px 15px;
}
.tag .dot{width:7px;height:7px;border-radius:50%;background:var(--accent-500);flex:0 0 auto;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-md);background:#fff;
  aspect-ratio:16/11;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 18px;font-size:.84rem;color:#fff;
  background:linear-gradient(180deg,rgba(18,60,51,0),rgba(18,60,51,.86));
}
.hero-side-card{
  position:absolute;left:18px;top:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:12px 16px;box-shadow:var(--shadow-sm);
  font-size:.82rem;color:var(--brand-900);font-weight:700;
  display:flex;align-items:center;gap:9px;
}
.hero-side-card .num{
  width:22px;height:22px;border-radius:50%;
  background:var(--accent-soft);color:var(--brand-700);
  display:grid;place-items:center;font-size:.76rem;font-weight:800;
}

/* ============ 时间线 ============ */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:25px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--accent-500),rgba(30,122,99,.22));
  border-radius:2px;
}
.step{
  position:relative;display:grid;grid-template-columns:52px minmax(0,1fr);
  gap:22px;padding:0 0 34px;
}
.step:last-child{padding-bottom:0;}
.step-num{
  position:relative;z-index:1;
  width:52px;height:52px;border-radius:50%;
  background:var(--brand-700);color:#fff;
  display:grid;place-items:center;
  font-weight:800;font-size:1rem;letter-spacing:.04em;
  border:4px solid var(--bg);
  box-shadow:0 8px 20px rgba(18,60,51,.18);
}
.step-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:24px 26px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.step-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:#C7D6C4;}
.step-card h3{margin-bottom:8px;}
.step-card p{margin:0;color:var(--muted);font-size:.97rem;}
.step-card .tip{
  display:inline-flex;align-items:center;gap:7px;margin-top:14px;
  font-size:.85rem;font-weight:700;color:var(--brand-500);
  background:var(--accent-soft);border-radius:var(--r-pill);padding:5px 13px;
}

/* ============ 清单 ============ */
.check-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:36px;box-shadow:var(--shadow-sm);
}
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:26px;}
.check-item{
  display:flex;gap:13px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.check-item:hover{border-color:var(--brand-500);box-shadow:var(--shadow-sm);transform:translateY(-2px);}
.check-item .mark{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;
  background:var(--accent-soft);color:var(--brand-700);
  display:grid;place-items:center;margin-top:2px;
}
.check-item strong{display:block;font-size:.98rem;color:var(--brand-900);margin-bottom:2px;}
.check-item span{font-size:.88rem;color:var(--muted);line-height:1.7;}
.notice{
  margin-top:22px;display:flex;gap:12px;align-items:flex-start;
  background:#FDF1E9;border:1px solid #F0D8C7;border-radius:var(--r-md);
  padding:16px 18px;color:#8A4A25;font-size:.9rem;line-height:1.75;
}
.notice svg{flex:0 0 auto;margin-top:3px;}

/* ============ 对照卡 ============ */
.prompt-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:8px;}
.prompt-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease,transform .2s ease;
}
.prompt-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);}
.prompt-card .badge-soft{
  display:inline-flex;align-items:center;
  background:var(--accent-soft);color:var(--brand-700);
  font-size:.78rem;font-weight:800;border-radius:var(--r-pill);
  padding:4px 12px;margin-bottom:14px;letter-spacing:.06em;
}
.prompt-card h3{font-size:1.08rem;margin-bottom:10px;}
.prompt-card p{color:var(--muted);font-size:.93rem;margin:0 0 14px;}
.prompt-card a.text-link{font-size:.9rem;font-weight:700;color:var(--brand-700);}
.prompt-card a.text-link:hover{color:var(--brand-900);}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.5fr);gap:52px;align-items:start;}
.faq-aside .lead{max-width:36ch;}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item.is-open{border-color:#C7D6C4;box-shadow:var(--shadow-sm);}
.faq-item h3{margin:0;font-size:1.02rem;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:20px 22px;font-size:1.02rem;font-weight:700;color:var(--brand-900);
  border-left:4px solid transparent;transition:border-color .2s ease,background-color .2s ease;
}
.faq-q:hover{background:#FAFDF0;}
.faq-item.is-open .faq-q{border-left-color:var(--accent-500);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  color:var(--brand-700);font-size:1rem;line-height:1;font-weight:700;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.faq-item.is-open .faq-icon{background:var(--brand-700);color:#fff;border-color:var(--brand-700);}
.faq-a{padding:0 22px 22px 22px;color:var(--muted);font-size:.96rem;line-height:1.85;}
.faq-a[hidden]{display:none;}
.faq-a p:last-child{margin-bottom:0;}

/* ============ 互链胶囊 ============ */
.related-cats{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;}
.rel-pill{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:11px 22px;font-size:.94rem;font-weight:700;color:var(--brand-700);
  text-decoration:none;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,border-color .18s ease,background-color .18s ease;
}
.rel-pill:hover{transform:translateY(-2px);border-color:var(--brand-500);background:#fff;color:var(--brand-900);text-decoration:none;}
.rel-pill.is-current{background:var(--brand-700);color:#fff;border-color:var(--brand-700);}
.rel-pill.is-current:hover{color:#fff;}
.rel-pill .arrow{font-size:.86rem;opacity:.75;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-900);color:#fff;
  border-radius:var(--r-lg);
  padding:52px 48px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(201,242,107,.10) 0 2px,transparent 2px 26px);
  pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:36px;align-items:center;}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:#CFE2D8;margin:0;max-width:52ch;font-size:1rem;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:flex-end;}
.cta-actions .text-link{color:var(--accent-500);font-weight:700;font-size:.94rem;}
.cta-actions .text-link:hover{color:#E7FFB0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:#CFE2D8;padding:66px 0 26px;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(201,242,107,.16);}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:#9FBDB1;}
.site-footer .brand-mark{background:rgba(201,242,107,.16);color:var(--accent-500);box-shadow:none;}
.footer-desc{margin-top:18px;font-size:.92rem;line-height:1.8;color:#A9C4B8;max-width:44ch;}
.footer-col h4{color:#fff;font-size:.98rem;font-weight:800;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:#B7CFC4;font-size:.92rem;text-decoration:none;transition:color .18s ease;}
.footer-col a:hover{color:var(--accent-500);text-decoration:none;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:24px;font-size:.86rem;color:#8FAEA1;}
.footer-bottom p{margin:0;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero-grid{gap:36px;}
  .faq-layout{gap:36px;}
}
@media (max-width:991.98px){
  .nav-top{flex-wrap:wrap;gap:14px;padding:12px 0 8px;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;}
  .nav-menu-btn{display:inline-flex;}
  .nav-cats{flex-wrap:nowrap;overflow-x:auto;padding-bottom:12px;scrollbar-width:thin;}
  .nav-cats.expanded{flex-wrap:wrap;overflow:visible;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-figure{order:2;aspect-ratio:16/10;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;gap:26px;}
  .cta-actions{justify-content:flex-start;}
  .prompt-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .section{padding:56px 0;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .wrap{padding:0 18px;}
  .check-list{grid-template-columns:1fr;}
  .check-wrap{padding:24px;}
  .prompt-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;border-radius:var(--r-md);}
  .step{grid-template-columns:44px minmax(0,1fr);gap:16px;}
  .step-num{width:44px;height:44px;font-size:.9rem;border-width:3px;}
  .timeline::before{left:21px;}
  .hero-tags{gap:8px;}
  .tag{font-size:.82rem;padding:6px 12px;}
  .footer-grid{grid-template-columns:1fr;}
  .section{padding:46px 0;}
}
@media (max-width:519.98px){
  .brand-text strong{font-size:.98rem;}
  .brand-text em{font-size:.74rem;letter-spacing:.18em;}
  .brand-mark{width:40px;height:40px;border-radius:12px;font-size:1.1rem;}
  .nav-search button{padding:8px 14px;font-size:.84rem;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
  .cta-actions .btn-accent{width:100%;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: article */
:root{
  --brand-900:#123C33;
  --brand-700:#185749;
  --brand-500:#1E7A63;
  --accent-500:#C9F26B;
  --accent-soft:#EAF7C8;
  --warm-500:#D9784A;
  --bg:#F7F2E8;
  --surface:#FFFDF8;
  --ink:#16231F;
  --muted:#5F6F68;
  --line:#D9E1D8;
  --focus:#7DA62D;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 10px 28px rgba(18,60,51,.07);
  --sh-2:0 16px 36px rgba(18,60,51,.12);
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-900);text-decoration:underline;text-underline-offset:3px;}
button{font:inherit;}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:8px;}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ===== header ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,253,248,.97);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(18,60,51,.10);}
.nav-top{display:flex;align-items:center;gap:26px;padding:16px 0 12px;}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--brand-900);flex:0 0 auto;}
.brand:hover{text-decoration:none;color:var(--brand-900);}
.brand-mark{
  width:44px;height:44px;border-radius:13px;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  color:#fff;display:grid;place-items:center;
  font-size:21px;font-weight:800;letter-spacing:0;
  box-shadow:0 6px 16px rgba(18,60,51,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:.01em;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.2em;margin-top:2px;}
.nav-search{
  flex:1 1 auto;max-width:600px;
  display:flex;align-items:center;gap:10px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:7px 7px 7px 18px;
  color:var(--muted);transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,99,.12);}
.nav-search svg{flex:0 0 auto;color:var(--brand-500);}
.nav-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:15px;color:var(--ink);padding:3px 0;
}
.nav-search input::placeholder{color:#94A39C;}
.nav-search button{
  flex:0 0 auto;border:0;background:var(--brand-700);color:#fff;
  border-radius:var(--r-pill);padding:8px 20px;font-size:14px;font-weight:600;
  cursor:pointer;transition:background .2s ease,transform .2s ease;
}
.nav-search button:hover{background:var(--brand-900);transform:translateY(-1px);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-700);color:#fff;font-size:14px;font-weight:700;
  padding:11px 22px;border-radius:12px;border:1px solid var(--brand-700);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-brand:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 18px rgba(18,60,51,.22);}
.nav-menu-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--brand-700);cursor:pointer;transition:.2s;
}
.nav-menu-btn:hover{background:var(--accent-soft);border-color:var(--accent-500);}
.nav-cats{display:flex;flex-wrap:wrap;gap:8px;padding:0 0 14px;}
.cat-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--brand-700);
  border:1px solid transparent;transition:.2s ease;white-space:nowrap;
}
.cat-pill:hover{background:var(--accent-soft);border-color:var(--accent-500);color:var(--brand-900);text-decoration:none;}
.cat-pill.active{background:var(--accent-soft);border-color:var(--accent-500);color:var(--brand-900);}
.cat-pill.active::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--focus);display:inline-block;}

/* ===== 面包屑 ===== */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);padding:24px 0 0;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand-700);text-decoration:none;}
.crumb .sep{color:#B7C4BE;}
.crumb .cur{color:var(--ink);font-weight:600;max-width:min(460px,70vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ===== 文章布局 ===== */
.article-shell{padding:26px 0 0;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 328px;gap:44px;align-items:start;}
.article-main{min-width:0;}
.article-hero{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px 36px 30px;box-shadow:var(--sh-1);
}
.badge-cat{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-soft);color:var(--brand-700);
  font-size:13px;font-weight:700;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(30,122,99,.16);
}
.article-hero h1{
  font-size:clamp(1.9rem,3.4vw,2.7rem);
  font-weight:800;line-height:1.25;letter-spacing:.01em;
  color:var(--brand-900);margin:18px 0 14px;
}
.article-lead{
  font-size:16px;line-height:1.85;color:var(--muted);
  margin:0 0 22px;padding-left:16px;border-left:3px solid var(--accent-500);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13.5px;color:var(--muted);
  padding-top:18px;border-top:1px dashed var(--line);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta svg{color:var(--brand-500);}

.article-content{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:38px 40px 44px;margin-top:22px;box-shadow:var(--sh-1);
  font-size:17px;line-height:1.85;color:#22322C;
  max-width:820px;
}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 1em;}
.article-content h2{
  font-size:clamp(1.35rem,2.2vw,1.7rem);font-weight:800;line-height:1.35;
  color:var(--brand-900);margin:46px 0 16px;padding-bottom:10px;
  border-bottom:1px solid var(--line);
}
.article-content h3{
  font-size:1.22rem;font-weight:700;line-height:1.45;color:var(--brand-700);
  margin:30px 0 12px;
}
.article-content h4{font-size:1.05rem;font-weight:700;margin:24px 0 10px;color:var(--brand-700);}
.article-content ul,.article-content ol{margin:0 0 1.1em;padding-left:1.4em;}
.article-content li{margin-bottom:.5em;}
.article-content strong{color:var(--brand-900);font-weight:700;}
.article-content a{color:var(--brand-700);border-bottom:1px solid rgba(24,87,73,.28);}
.article-content a:hover{color:var(--brand-900);border-bottom-color:var(--brand-900);text-decoration:none;}
.article-content img{border-radius:var(--r-md);margin:22px 0;box-shadow:var(--sh-1);}
.article-content figure{margin:24px 0;}
.article-content figcaption{font-size:13.5px;color:var(--muted);text-align:center;margin-top:10px;}
.article-content blockquote{
  margin:26px 0;padding:18px 24px;
  background:rgba(234,247,200,.42);
  border-left:4px solid var(--brand-500);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--brand-900);font-size:16px;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content table{
  display:block;width:100%;overflow-x:auto;
  border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-md);
}
.article-content table th,.article-content table td{
  border:1px solid var(--line);padding:11px 16px;text-align:left;white-space:nowrap;
}
.article-content table th{background:rgba(234,247,200,.6);color:var(--brand-900);font-weight:700;}
.article-content table tr:nth-child(even) td{background:rgba(247,242,232,.55);}
.article-content hr{border:0;border-top:1px solid var(--line);margin:34px 0;}

.article-end{
  margin-top:22px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 30px;box-shadow:var(--sh-1);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.article-end p{margin:0;font-size:14.5px;color:var(--muted);}
.end-actions{display:flex;flex-wrap:wrap;gap:12px;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--brand-700);color:var(--brand-700);
  background:transparent;border-radius:12px;padding:10px 20px;
  font-size:14px;font-weight:700;transition:.2s ease;
}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--brand-900);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.btn-solid{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--brand-700);background:var(--brand-700);color:#fff;
  border-radius:12px;padding:10px 22px;font-size:14px;font-weight:700;transition:.2s ease;
}
.btn-solid:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 18px rgba(18,60,51,.2);}

/* 空态 */
.empty-state{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:56px 30px;text-align:center;margin-top:22px;box-shadow:var(--sh-1);
}
.empty-state .ico{
  width:64px;height:64px;border-radius:50%;background:var(--accent-soft);
  display:grid;place-items:center;margin:0 auto 18px;color:var(--brand-700);
}
.empty-state h2{font-size:1.3rem;font-weight:800;color:var(--brand-900);margin:0 0 10px;}
.empty-state p{color:var(--muted);font-size:15px;margin:0 0 22px;}

/* ===== 侧栏 ===== */
.article-aside{position:relative;}
.aside-inner{position:sticky;top:150px;display:grid;gap:18px;}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 24px;box-shadow:var(--sh-1);
}
.aside-card h2,.aside-card h3{
  font-size:15px;font-weight:800;color:var(--brand-900);
  margin:0 0 14px;letter-spacing:.02em;
}
.aside-links{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none;}
.aside-links a{
  display:inline-flex;font-size:13px;font-weight:600;color:var(--brand-700);
  background:rgba(234,247,200,.55);border:1px solid rgba(30,122,99,.14);
  border-radius:var(--r-pill);padding:6px 13px;transition:.2s;
}
.aside-links a:hover{background:var(--accent-soft);border-color:var(--accent-500);color:var(--brand-900);text-decoration:none;}
.toc-list{list-style:none;margin:0;padding:0;display:grid;gap:2px;}
.toc-list a{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--muted);padding:8px 10px;border-radius:var(--r-sm);
  border-left:2px solid transparent;transition:.2s;
}
.toc-list a:hover{background:rgba(234,247,200,.5);color:var(--brand-900);border-left-color:var(--brand-500);text-decoration:none;}
.rel-list{display:grid;gap:16px;}
.rel-item{display:grid;grid-template-columns:76px minmax(0,1fr);gap:12px;align-items:start;}
.rel-item img{width:76px;height:58px;object-fit:cover;border-radius:var(--r-sm);}
.rel-item h4{
  font-size:14px;font-weight:700;line-height:1.5;color:var(--ink);
  margin:0 0 5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-item a{color:var(--ink);}
.rel-item a:hover{color:var(--brand-700);text-decoration:none;}
.rel-item span{font-size:12.5px;color:var(--muted);}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;margin-top:76px;
  background:var(--brand-900);color:#fff;padding:66px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(201,242,107,.10) 0 2px,transparent 2px 34px);
  pointer-events:none;
}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;}
.cta-inner h2{font-size:clamp(1.4rem,2.4vw,1.95rem);font-weight:800;margin:0 0 10px;color:#fff;}
.cta-inner p{margin:0;color:rgba(255,255,255,.78);font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;}
.btn-accent{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-500);color:var(--brand-900);border:1px solid var(--accent-500);
  border-radius:12px;padding:13px 28px;font-size:15px;font-weight:800;transition:.2s ease;
}
.btn-accent:hover{background:#D7F88A;color:var(--brand-900);text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.22);}
.link-light{color:rgba(255,255,255,.85);font-size:14.5px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:2px;}
.link-light:hover{color:var(--accent-500);border-bottom-color:var(--accent-500);text-decoration:none;}

/* ===== footer ===== */
.site-footer{background:#0F2E27;color:rgba(255,255,255,.76);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px;}
.site-footer .brand{margin-bottom:18px;}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:rgba(255,255,255,.55);}
.site-footer .brand-mark{box-shadow:none;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin:0;max-width:340px;}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin:0 0 16px;letter-spacing:.04em;}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-col a:hover{color:var(--accent-500);text-decoration:none;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom p{margin:0;}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px;}
  .article-content{padding:32px 30px 36px;}
}
@media (max-width:991.98px){
  .nav-top{flex-wrap:wrap;gap:14px 16px;padding:14px 0 10px;}
  .nav-search{order:3;flex:1 0 100%;max-width:none;}
  .nav-actions{margin-left:auto;}
  .nav-menu-btn{display:inline-flex;}
  .nav-cats{display:none;flex-wrap:nowrap;overflow-x:auto;gap:10px;padding:2px 0 14px;-webkit-overflow-scrolling:touch;scrollbar-width:thin;}
  .nav-cats.open{display:flex;}
  .nav-cats::-webkit-scrollbar{height:4px;}
  .nav-cats::-webkit-scrollbar-thumb{background:var(--line);border-radius:2px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:26px;}
  .aside-inner{position:static;grid-template-columns:1fr 1fr;gap:16px;}
  .aside-card:last-child{grid-column:1 / -1;}
  .article-hero{padding:26px 24px 24px;}
  .article-content{padding:26px 22px 30px;font-size:16px;}
  .article-content h2{margin-top:36px;}
  .cta-band{margin-top:56px;padding:52px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .footer-desc{max-width:none;}
}
@media (max-width:767.98px){
  .wrap{padding:0 18px;}
  .brand-mark{width:40px;height:40px;font-size:19px;}
  .brand-text strong{font-size:16px;}
  .crumb{padding-top:18px;font-size:13px;}
  .article-shell{padding-top:18px;}
  .article-hero h1{font-size:clamp(1.6rem,6vw,2.1rem);}
  .article-lead{font-size:15px;padding-left:13px;}
  .article-meta{gap:8px 16px;font-size:12.5px;}
  .aside-inner{grid-template-columns:1fr;}
  .article-end{flex-direction:column;align-items:flex-start;padding:22px;}
  .end-actions{width:100%;}
  .end-actions .btn-ghost,.end-actions .btn-solid{flex:1 1 auto;justify-content:center;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .btn-accent{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575.98px){
  .nav-search{padding-left:14px;}
  .nav-search button{padding:8px 15px;font-size:13px;}
  .btn-brand{padding:10px 16px;font-size:13px;}
  .article-content table th,.article-content table td{padding:9px 12px;font-size:14px;}
}

/* roulang page: category3 */
:root{
  --brand-900:#123C33;
  --brand-700:#185749;
  --brand-500:#1E7A63;
  --accent-500:#C9F26B;
  --accent-soft:#EAF7C8;
  --warm-500:#D9784A;
  --bg:#F7F2E8;
  --surface:#FFFDF8;
  --ink:#16231F;
  --muted:#5F6F68;
  --line:#D9E1D8;
  --focus:#7DA62D;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow-1:0 10px 28px rgba(18,60,51,.07);
  --shadow-2:0 16px 36px rgba(18,60,51,.12);
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--ink);
  font-size:17px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-900);text-decoration:underline;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--focus);
  outline-offset:3px;
  border-radius:6px;
}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:.005em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 24px;}
.section{padding:84px 0;}
.section-tight{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--brand-700);
  background:var(--accent-soft);
  border-radius:var(--r-pill);
  padding:6px 14px;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand-500);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{font-size:clamp(1.5rem,2.6vw,2.2rem);line-height:1.25;margin-top:14px;}
.sec-head p{margin-top:14px;color:var(--muted);font-size:16.5px;line-height:1.85;}
.lead{color:var(--muted);}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,253,248,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(18,60,51,.10);}
.nav-top{
  display:flex;align-items:center;gap:22px;
  padding:14px 0 10px;
}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  background:var(--brand-900);color:var(--accent-500);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;flex-shrink:0;
  box-shadow:inset 0 0 0 1px rgba(201,242,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-text strong{font-size:18px;font-weight:800;color:var(--brand-900);letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:12.5px;font-weight:600;color:var(--brand-500);letter-spacing:.16em;}
.nav-search{
  flex:1 1 auto;max-width:620px;min-width:240px;
  display:flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:6px 6px 6px 18px;
  color:var(--muted);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{
  border-color:var(--brand-500);
  box-shadow:0 0 0 4px rgba(30,122,99,.12);
}
.nav-search svg{flex-shrink:0;color:var(--brand-500);}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;
  font-size:15px;color:var(--ink);padding:8px 0;
  font-family:inherit;
}
.nav-search input::placeholder{color:#98A6A0;}
.nav-search input:focus{outline:none;}
.nav-search button{
  border:0;border-radius:var(--r-pill);
  background:var(--brand-900);color:#fff;
  font-size:14px;font-weight:700;
  padding:9px 20px;flex-shrink:0;
  transition:background .2s ease,transform .2s ease;
}
.nav-search button:hover{background:var(--brand-700);transform:translateY(-1px);}
.nav-search button:active{transform:translateY(0);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand-900);color:#fff;
  border:1px solid var(--brand-900);
  border-radius:12px;
  font-size:14.5px;font-weight:700;
  padding:11px 20px;line-height:1.2;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--brand-900);
  border:1px solid var(--brand-700);
  border-radius:12px;
  font-size:14.5px;font-weight:700;
  padding:11px 20px;line-height:1.2;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:rgba(30,122,99,.09);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent-500);color:var(--brand-900);
  border:1px solid var(--accent-500);
  border-radius:12px;
  font-size:15px;font-weight:800;
  padding:13px 24px;line-height:1.2;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-accent:hover{background:#D7F98A;color:var(--brand-900);text-decoration:none;transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,0,0,.16);}
.nav-menu-btn{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand-900);
  transition:background .2s ease,border-color .2s ease;
}
.nav-menu-btn:hover{background:var(--accent-soft);border-color:var(--brand-500);}
.nav-cats{
  display:flex;align-items:center;gap:8px;
  padding:4px 0 14px;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-cats::-webkit-scrollbar{display:none;}
.cat-pill{
  position:relative;
  display:inline-flex;align-items:center;
  white-space:nowrap;
  font-size:14.5px;font-weight:600;color:var(--muted);
  padding:7px 15px;border-radius:var(--r-pill);
  border:1px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.cat-pill:hover{color:var(--brand-900);background:rgba(30,122,99,.08);text-decoration:none;}
.cat-pill.active{
  color:var(--brand-900);font-weight:800;
  background:var(--accent-soft);
  border-color:rgba(30,122,99,.18);
}
.cat-pill.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:1px;
  height:3px;border-radius:2px;background:var(--accent-500);
}

/* ============ Page hero ============ */
.page-hero{
  position:relative;
  padding:56px 0 64px;
  background:
    linear-gradient(180deg,rgba(247,242,232,.92),rgba(247,242,232,.98)),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-90px;width:380px;height:380px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,107,.34),rgba(201,242,107,0) 68%);
  pointer-events:none;
}
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);margin-bottom:22px;
}
.breadcrumb-line a{color:var(--brand-700);font-weight:600;}
.breadcrumb-line span{color:#9AA9A2;}
.page-hero h1{
  font-size:clamp(2rem,3.6vw,3.05rem);
  line-height:1.18;
  font-weight:800;
  max-width:900px;
  margin-top:16px;
}
.page-hero h1 .hl{
  position:relative;white-space:nowrap;
  color:var(--brand-900);
}
.page-hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;
  background:var(--accent-500);opacity:.55;border-radius:4px;z-index:-1;
}
.hero-sub{
  margin-top:18px;max-width:760px;
  font-size:17px;line-height:1.85;color:var(--muted);
}
.quick-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.quick-tags a{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:8px 16px;font-size:14px;font-weight:600;color:var(--brand-700);
  box-shadow:0 4px 12px rgba(18,60,51,.04);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.quick-tags a:hover{background:var(--accent-soft);border-color:var(--brand-500);text-decoration:none;transform:translateY(-1px);}
.quick-tags svg{color:var(--brand-500);}

/* ============ Alternating blocks ============ */
.alt-block{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;align-items:center;
  padding:44px 0;
  border-bottom:1px dashed var(--line);
}
.alt-block:last-child{border-bottom:0;}
.alt-block.reverse .alt-media{order:2;}
.alt-block.reverse .alt-body{order:1;}
.alt-media{position:relative;}
.alt-media img{
  width:100%;border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  aspect-ratio:16/10;object-fit:cover;
  border:1px solid var(--line);
}
.alt-media figcaption{
  margin-top:12px;font-size:13.5px;color:var(--muted);line-height:1.7;
}
.alt-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:var(--brand-900);color:var(--accent-500);
  font-size:15px;font-weight:800;margin-bottom:16px;
}
.alt-body h3{font-size:clamp(1.25rem,2vw,1.55rem);line-height:1.35;margin-bottom:14px;}
.alt-body p{color:var(--muted);font-size:16.5px;line-height:1.85;}
.check-list{margin-top:20px;display:grid;gap:11px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15.5px;color:var(--ink);line-height:1.75;
}
.check-list svg{flex-shrink:0;margin-top:6px;color:var(--brand-500);}
.alt-body .inline-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:22px;font-weight:700;font-size:15px;color:var(--brand-700);
}
.alt-body .inline-link:hover{color:var(--brand-900);text-decoration:underline;}

/* ============ Term strip cards ============ */
.term-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.term-row{
  display:grid;
  grid-template-columns:220px minmax(0,1fr) auto;
  gap:24px;align-items:center;
  padding:24px 28px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.term-row:last-child{border-bottom:0;}
.term-row:hover{background:rgba(234,247,200,.42);}
.term-name{
  display:flex;align-items:center;gap:10px;
  font-size:16px;font-weight:800;color:var(--brand-900);
}
.term-name i{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;
  background:var(--accent-soft);color:var(--brand-700);
  font-style:normal;font-size:13px;font-weight:800;
  flex-shrink:0;
}
.term-desc{font-size:15.5px;color:var(--muted);line-height:1.8;}
.term-tag{
  display:inline-flex;align-items:center;
  background:var(--accent-soft);color:var(--brand-900);
  border-radius:var(--r-pill);
  font-size:13px;font-weight:700;
  padding:5px 13px;white-space:nowrap;
}
.term-tag.warm{background:rgba(217,120,74,.14);color:#A64F27;}

/* ============ Related categories pills ============ */
.rel-cats{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;
}
.rel-cats a{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:11px 20px;font-size:15px;font-weight:700;color:var(--brand-700);
  box-shadow:0 6px 16px rgba(18,60,51,.05);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.rel-cats a:hover{border-color:var(--brand-500);background:var(--accent-soft);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.rel-cats a.current{
  background:var(--brand-900);color:#fff;border-color:var(--brand-900);
  cursor:default;
}
.rel-cats a.current:hover{transform:none;box-shadow:0 6px 16px rgba(18,60,51,.14);background:var(--brand-900);}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;grid-template-columns:minmax(0,.86fr) minmax(0,1.55fr);
  gap:56px;align-items:start;
}
.faq-side h2{font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.28;margin-top:14px;}
.faq-side p{margin-top:16px;color:var(--muted);font-size:16px;line-height:1.85;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:4px solid transparent;
  border-radius:var(--r-md);
  box-shadow:0 6px 18px rgba(18,60,51,.05);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.faq-item.open{
  border-left-color:var(--accent-500);
  box-shadow:var(--shadow-1);
  background:#fff;
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;text-align:left;
  padding:20px 24px;
  font-size:16.5px;font-weight:800;color:var(--ink);
  line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-700);}
.faq-sign{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;
  background:var(--accent-soft);color:var(--brand-900);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;line-height:1;
  transition:background .2s ease,transform .2s ease;
}
.faq-item.open .faq-sign{background:var(--accent-500);transform:rotate(180deg);}
.faq-a{
  display:none;
  padding:0 24px 22px;
  color:var(--muted);font-size:15.8px;line-height:1.9;
}
.faq-item.open .faq-a{display:block;}
.faq-a a{font-weight:700;}

/* ============ CTA banner ============ */
.cta-band{
  position:relative;
  background:var(--brand-900);
  border-radius:var(--r-lg);
  padding:56px 56px;
  color:#fff;
  overflow:hidden;
  box-shadow:0 20px 44px rgba(18,60,51,.22);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(201,242,107,.14) 0 2px,transparent 2px 26px);
  opacity:.55;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-100px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,107,.24),rgba(201,242,107,0) 70%);
  pointer-events:none;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:clamp(1.4rem,2.4vw,2rem);line-height:1.3;max-width:620px;}
.cta-inner p{color:rgba(255,255,255,.76);font-size:16px;margin-top:12px;max-width:600px;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.cta-link{color:#EAF7C8;font-weight:700;font-size:15px;border-bottom:1px solid rgba(234,247,200,.5);padding-bottom:2px;}
.cta-link:hover{color:#fff;text-decoration:none;border-bottom-color:#fff;}

/* ============ Footer ============ */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.78);
  padding:64px 0 32px;
  margin-top:84px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:44px;
}
.site-footer .brand-mark{background:var(--accent-500);color:var(--brand-900);box-shadow:none;}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:var(--accent-500);}
.footer-desc{margin-top:18px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px;}
.footer-col h4{
  font-size:15px;color:#fff;font-weight:800;margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{
  color:rgba(255,255,255,.72);font-size:14.5px;
  transition:color .18s ease,padding-left .18s ease;
}
.footer-col a:hover{color:var(--accent-500);text-decoration:none;padding-left:4px;}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.56);
}

/* ============ Responsive ============ */
@media (max-width:1199.98px){
  .term-row{grid-template-columns:180px minmax(0,1fr) auto;gap:18px;}
  .alt-block{gap:40px;}
}
@media (max-width:991.98px){
  .section{padding:60px 0;}
  .section-tight{padding:48px 0;}
  .nav-top{flex-wrap:wrap;gap:12px 16px;padding:12px 0 8px;}
  .brand{order:1;}
  .nav-actions{order:2;margin-left:auto;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;min-width:0;}
  .nav-menu-btn{display:inline-flex;}
  .nav-cats{display:none;padding:2px 0 12px;flex-wrap:nowrap;}
  .nav-cats.open{display:flex;}
  .page-hero{padding:40px 0 48px;}
  .alt-block,.alt-block.reverse{grid-template-columns:1fr;gap:26px;padding:32px 0;}
  .alt-block.reverse .alt-media{order:0;}
  .alt-block.reverse .alt-body{order:0;}
  .term-row{grid-template-columns:1fr;gap:10px;padding:20px 22px;}
  .term-name{font-size:15.5px;}
  .term-tag{justify-self:start;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .cta-band{padding:40px 32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
}
@media (max-width:575.98px){
  .wrap{padding:0 18px;}
  body{font-size:16px;}
  .brand-mark{width:38px;height:38px;font-size:18px;}
  .brand-text strong{font-size:16.5px;}
  .brand-text em{font-size:11.5px;letter-spacing:.12em;}
  .nav-search{padding:5px 5px 5px 14px;}
  .nav-search button{padding:8px 16px;font-size:13.5px;}
  .nav-search input{font-size:14px;}
  .btn-brand{padding:10px 14px;font-size:13.5px;}
  .page-hero h1{font-size:clamp(1.7rem,7.4vw,2.2rem);}
  .hero-sub{font-size:15.5px;}
  .quick-tags a{font-size:13px;padding:7px 13px;}
  .faq-q{padding:16px 18px;font-size:15.5px;}
  .faq-a{padding:0 18px 18px;font-size:15px;}
  .cta-band{padding:32px 22px;border-radius:var(--r-md);}
  .cta-inner{gap:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-accent{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:48px 0 26px;margin-top:60px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .rel-cats a{font-size:14px;padding:9px 16px;}
}

/* roulang page: category2 */
:root{
  --brand-900:#123C33;
  --brand-700:#185749;
  --brand-500:#1E7A63;
  --accent-500:#C9F26B;
  --accent-soft:#EAF7C8;
  --warm-500:#D9784A;
  --bg:#F7F2E8;
  --surface:#FFFDF8;
  --ink:#16231F;
  --muted:#5F6F68;
  --line:#D9E1D8;
  --focus:#7DA62D;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow-sm:0 10px 28px rgba(18,60,51,.07);
  --shadow-md:0 16px 36px rgba(18,60,51,.12);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::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:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--brand-900);text-decoration:underline;text-underline-offset:3px;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:8px;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:.01em;}
h2{font-size:clamp(1.5rem,2.6vw,2.2rem);line-height:1.25;}
h3{font-size:clamp(1.12rem,1.6vw,1.4rem);line-height:1.4;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 24px;}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(18,60,51,.10);}
.nav-top{
  display:grid;
  grid-template-columns:auto minmax(280px,1fr) auto;
  align-items:center;
  gap:24px;
  padding:14px 0;
}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none;}
.brand:hover{text-decoration:none;color:var(--ink);}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-900);color:var(--accent-500);
  border-radius:13px;font-size:21px;font-weight:800;line-height:1;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:.04em;}
.brand-text em{font-style:normal;font-size:11.5px;letter-spacing:.24em;color:var(--muted);margin-top:3px;}
.nav-search{
  display:flex;align-items:center;gap:10px;
  width:100%;max-width:560px;justify-self:center;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:5px 5px 5px 16px;
  color:var(--muted);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(201,242,107,.45);}
.nav-search svg{flex:0 0 18px;}
.nav-search input[type=search]{
  flex:1 1 auto;min-width:0;border:0;outline:0;background:transparent;
  font-family:inherit;font-size:14.5px;color:var(--ink);padding:8px 0;
}
.nav-search input[type=search]::placeholder{color:#93A29B;}
.nav-search button[type=submit]{
  flex:0 0 auto;border:0;cursor:pointer;
  background:var(--brand-900);color:#fff;
  border-radius:var(--r-pill);
  padding:9px 20px;font-family:inherit;font-size:14px;font-weight:600;
  transition:background-color .18s ease,transform .18s ease;
}
.nav-search button[type=submit]:hover{background:var(--brand-700);transform:translateY(-1px);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-900);color:#fff;
  border:1px solid var(--brand-900);border-radius:12px;
  padding:11px 20px;font-size:14.5px;font-weight:700;
  white-space:nowrap;transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-brand:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-sm);}
.btn-brand:active{transform:translateY(0);}
.nav-menu-btn{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:#fff;color:var(--brand-900);cursor:pointer;
  transition:background-color .18s ease,border-color .18s ease;
}
.nav-menu-btn:hover{background:var(--accent-soft);border-color:var(--brand-500);}
.nav-cats{
  display:flex;align-items:center;gap:9px;
  padding:0 0 13px;
  overflow-x:auto;scrollbar-width:none;
}
.nav-cats::-webkit-scrollbar{display:none;}
.cat-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;
  color:var(--brand-700);font-size:14px;font-weight:600;white-space:nowrap;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease,transform .18s ease;
}
.cat-pill:hover{background:var(--accent-soft);border-color:var(--brand-500);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.cat-pill.active{background:var(--brand-900);border-color:var(--brand-900);color:#fff;}
.cat-pill.active::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--accent-500);margin-right:8px;
}

/* ===== 面包屑 ===== */
.breadcrumb-nav{
  display:flex;align-items:center;flex-wrap:wrap;gap:7px;
  font-size:13.5px;color:var(--muted);
}
.breadcrumb-nav a{color:var(--brand-700);}
.breadcrumb-nav span[aria-hidden="true"]{color:#A8B5AE;}

/* ===== 分类页 Hero ===== */
.hero-cat{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1000px 380px at 90% -30%,rgba(201,242,107,.42),transparent 64%),
    linear-gradient(180deg,#FFFDF8 0%,#F7F2E8 100%);
  border-bottom:1px solid var(--line);
}
.hero-cat .wrap{padding-top:30px;padding-bottom:56px;}
.hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:52px;align-items:center;margin-top:26px;
}
.hero-copy h1{
  font-size:clamp(2.05rem,3.6vw,3.05rem);
  line-height:1.18;font-weight:800;margin:16px 0 16px;
}
.hero-lead{font-size:17.5px;color:var(--muted);max-width:34em;margin-bottom:22px;}
.tag{
  display:inline-flex;align-items:center;
  background:var(--accent-soft);color:var(--brand-900);
  border-radius:var(--r-pill);padding:5px 13px;
  font-size:13px;font-weight:700;letter-spacing:.04em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px;}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-900);color:#fff;
  border:1px solid var(--brand-900);border-radius:12px;
  padding:13px 26px;font-size:16px;font-weight:700;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-main:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-sm);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--brand-900);
  border:1px solid var(--brand-700);border-radius:12px;
  padding:13px 24px;font-size:16px;font-weight:600;
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:var(--accent-soft);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.anchor-row{display:flex;flex-wrap:wrap;gap:9px;}
.anchor-row a{
  display:inline-flex;align-items:center;
  padding:7px 15px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13.5px;font-weight:600;color:var(--brand-700);
  transition:background-color .18s ease,border-color .18s ease,transform .18s ease;
}
.anchor-row a:hover{background:var(--accent-soft);border-color:var(--brand-500);text-decoration:none;transform:translateY(-1px);}
.hero-figure{
  border-radius:24px;overflow:hidden;box-shadow:var(--shadow-md);
  aspect-ratio:16/10;background:#E6EDE3;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}

/* ===== 通用板块 ===== */
.section{padding:80px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.16em;
  color:var(--brand-500);text-transform:uppercase;margin-bottom:10px;
}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:16.5px;margin:0;}

/* ===== 双栏：风险核对清单 ===== */
.check-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:30px;align-items:start;}
.panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-sm);
  padding:28px;
  transition:box-shadow .22s ease,transform .22s ease;
}
.panel:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:6px;flex-wrap:wrap;}
.panel-sub{color:var(--muted);font-size:14.5px;margin:6px 0 8px;}
.check-item{
  display:grid;grid-template-columns:26px 1fr;gap:14px;
  padding:18px 0;border-bottom:1px dashed var(--line);
}
.check-item:last-child{border-bottom:0;padding-bottom:0;}
.check-box{
  width:22px;height:22px;margin-top:5px;
  display:flex;align-items:center;justify-content:center;
  border-radius:7px;border:1.5px solid var(--brand-500);
  background:var(--accent-soft);color:var(--brand-900);
}
.check-item h3{font-size:16.5px;margin-bottom:5px;font-weight:700;}
.check-item p{font-size:14.8px;color:var(--muted);margin:0;line-height:1.75;}
.info-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-sm);overflow:hidden;
}
.info-card figure{margin:0;aspect-ratio:16/10;background:#E6EDE3;}
.info-card figure img{width:100%;height:100%;object-fit:cover;}
.info-card .info-body{padding:24px 26px 26px;}
.info-card h3{margin:12px 0 10px;}
.info-card p{font-size:15px;color:var(--muted);}
.tip-note{
  margin-top:18px;display:flex;gap:11px;
  background:#FDF3EC;border:1px solid #F2D3BE;border-left:4px solid var(--warm-500);
  border-radius:var(--r-md);padding:14px 16px;
  font-size:14.5px;color:#8A4B28;line-height:1.7;
}
.tip-note strong{color:#7A3F1F;}

/* ===== 图文交错 ===== */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;
  gap:46px;align-items:center;
  padding:34px 0;
}
.feature-row + .feature-row{border-top:1px solid var(--line);}
.feature-row.reverse .feature-media{order:2;}
.feature-media{
  border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);aspect-ratio:4/3;background:#E6EDE3;
}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-text h3{margin:12px 0 12px;}
.feature-text p{color:var(--muted);font-size:16px;}
.feature-list{list-style:none;display:grid;gap:10px;margin-top:16px;}
.feature-list li{
  position:relative;padding-left:26px;
  font-size:15.2px;color:var(--ink);line-height:1.7;
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:10px;height:10px;border-radius:3px;
  background:var(--accent-500);box-shadow:inset 0 0 0 1px rgba(18,60,51,.18);
}

/* ===== 处理步骤 ===== */
.steps-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:start;}
.step-list{list-style:none;counter-reset:step;position:relative;}
.step-list li{
  position:relative;padding-left:66px;padding-bottom:26px;
}
.step-list li:last-child{padding-bottom:0;}
.step-list li::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;left:0;top:2px;
  width:46px;height:46px;border-radius:14px;
  background:var(--brand-900);color:var(--accent-500);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;letter-spacing:.02em;
}
.step-list li::after{
  content:"";position:absolute;left:22px;top:54px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--line),rgba(217,225,216,0));
}
.step-list li:last-child::after{display:none;}
.step-list h3{font-size:17px;margin-bottom:6px;}
.step-list p{font-size:15px;color:var(--muted);margin:0;}
.aside-card{
  background:linear-gradient(180deg,var(--brand-900),#0E322B);
  color:#DCE9E1;border-radius:var(--r-lg);
  padding:30px 28px;box-shadow:var(--shadow-md);
}
.aside-card h3{color:#fff;font-size:1.2rem;margin-bottom:12px;}
.aside-card p{font-size:15px;color:#B9CFC4;}
.aside-card ul{list-style:none;display:grid;gap:12px;margin-top:16px;}
.aside-card li{
  display:grid;grid-template-columns:20px 1fr;gap:10px;
  font-size:14.6px;color:#D4E4DB;line-height:1.7;
}
.aside-card li svg{margin-top:5px;color:var(--accent-500);}
.aside-card a{color:var(--accent-500);text-decoration:underline;text-underline-offset:3px;}
.aside-card a:hover{color:#fff;}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:44px;align-items:start;}
.faq-intro h2{margin-bottom:14px;}
.faq-intro p{color:var(--muted);font-size:16px;}
.faq-intro .faq-side-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;
  font-weight:700;color:var(--brand-700);
}
.faq-acc .accordion-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.faq-acc .accordion-button{
  width:100%;background:transparent;border:0;
  padding:19px 54px 19px 22px;
  font-family:inherit;font-size:16.5px;font-weight:700;color:var(--ink);
  box-shadow:none;position:relative;text-align:left;line-height:1.55;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand-900);background:#FBFDF4;
  box-shadow:inset 4px 0 0 var(--accent-500);
}
.faq-acc .accordion-button:focus{box-shadow:inset 0 0 0 2px var(--focus);}
.faq-acc .accordion-button::after{display:none;}
.faq-acc .accordion-button::before{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:var(--brand-900);
  font-size:17px;font-weight:800;line-height:1;
}
.faq-acc .accordion-button:not(.collapsed)::before{content:"−";background:var(--brand-900);color:var(--accent-500);}
.faq-acc .accordion-button:hover{background:#FBFDF4;}
.faq-acc .accordion-body{
  padding:2px 24px 22px 22px;font-size:15.2px;color:var(--muted);line-height:1.85;
}
.faq-acc .accordion-body a{font-weight:600;}

/* ===== 分类互链 ===== */
.cat-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.cat-links a{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:14.5px;font-weight:600;color:var(--brand-700);
  transition:background-color .18s ease,border-color .18s ease,transform .18s ease;
}
.cat-links a:hover{background:var(--accent-soft);border-color:var(--brand-500);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.cat-links a.current{background:var(--brand-900);border-color:var(--brand-900);color:#fff;}

/* ===== CTA 横幅 ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-900);color:#fff;
  border-radius:24px;padding:44px 46px;
  display:grid;grid-template-columns:1.3fr .7fr;
  gap:28px;align-items:center;
  box-shadow:var(--shadow-md);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(201,242,107,.14) 0 2px,transparent 2px 26px);
  pointer-events:none;
}
.cta-band h2{color:#fff;position:relative;margin-bottom:10px;}
.cta-band p{color:#BFD6CA;font-size:15.5px;margin:0;position:relative;}
.cta-actions{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:12px;}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent-500);color:var(--brand-900);
  border:1px solid var(--accent-500);border-radius:12px;
  padding:14px 30px;font-size:16px;font-weight:800;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-accent:hover{background:#D9F894;color:var(--brand-900);text-decoration:none;transform:translateY(-1px);box-shadow:0 12px 26px rgba(201,242,107,.28);}
.cta-actions a.text-link{color:#CFE4D8;font-size:14.5px;text-decoration:underline;text-underline-offset:4px;}
.cta-actions a.text-link:hover{color:#fff;}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-900);color:#DCE7DF;padding:64px 0 28px;margin-top:84px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px;}
.site-footer .brand-mark{background:var(--accent-500);color:var(--brand-900);}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:#A9C3B6;}
.footer-desc{font-size:14.5px;color:#A9C3B6;line-height:1.8;margin:18px 0 0;max-width:32em;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin:0 0 14px;}
.footer-col ul{list-style:none;display:grid;gap:10px;font-size:14.5px;}
.footer-col a{color:#BBD0C6;}
.footer-col a:hover{color:var(--accent-500);text-decoration:none;}
.footer-bottom{
  margin-top:38px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13.5px;color:#93AFA3;
}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  .hero-grid{gap:38px;}
  .check-grid{gap:24px;}
  .cta-band{padding:38px 34px;}
}
@media (max-width:991.98px){
  .nav-top{
    grid-template-columns:1fr auto;
    grid-template-areas:
      "brand actions"
      "search search";
    row-gap:12px;
    gap:12px;
    padding:13px 0 10px;
  }
  .brand{grid-area:brand;}
  .nav-actions{grid-area:actions;}
  .nav-search{grid-area:search;max-width:100%;justify-self:stretch;}
  .nav-menu-btn{display:inline-flex;}
  .nav-cats{display:none;}
  body.nav-open .nav-cats{display:flex;padding-bottom:14px;}
  .btn-brand{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero-figure{order:2;aspect-ratio:16/9;}
  .section{padding:56px 0;}
  .check-grid{grid-template-columns:1fr;}
  .feature-row{grid-template-columns:1fr;gap:24px;}
  .feature-row.reverse .feature-media{order:0;}
  .steps-layout{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;gap:26px;}
  .cta-band{grid-template-columns:1fr;padding:34px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .site-footer{padding:52px 0 24px;margin-top:60px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .hero-cat .wrap{padding-bottom:40px;}
  .hero-lead{font-size:16px;}
  .panel{padding:22px;}
  .check-item{grid-template-columns:22px 1fr;gap:12px;}
  .cta-band{border-radius:18px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .wrap{padding:0 18px;}
  .brand-text strong{font-size:15.5px;}
  .brand-text em{font-size:10.5px;letter-spacing:.18em;}
  .nav-search{padding-left:13px;}
  .nav-search button[type=submit]{padding:8px 14px;font-size:13px;}
  .btn-main,.btn-ghost{width:100%;justify-content:center;}
  .hero-actions{gap:10px;}
  .step-list li{padding-left:56px;}
  .step-list li::before{width:40px;height:40px;border-radius:12px;font-size:13px;}
  .step-list li::after{left:19px;top:48px;}
  .cta-band{padding:26px 20px;}
  .btn-accent{width:100%;}
}

/* roulang page: category4 */
:root{
  --brand-900:#123C33;
  --brand-700:#185749;
  --brand-500:#1E7A63;
  --accent-500:#C9F26B;
  --accent-soft:#EAF7C8;
  --warm-500:#D9784A;
  --warm-soft:#FBEDE3;
  --bg:#F7F2E8;
  --surface:#FFFDF8;
  --ink:#16231F;
  --muted:#5F6F68;
  --line:#D9E1D8;
  --focus:#7DA62D;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow-sm:0 10px 28px rgba(18,60,51,.07);
  --shadow-md:0 16px 36px rgba(18,60,51,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::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:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-900);text-decoration:underline;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--brand-900);letter-spacing:.01em;}
h1{font-size:clamp(2.05rem,3.7vw,3.25rem);font-weight:800;line-height:1.18;}
h2{font-size:clamp(1.5rem,2.5vw,2.1rem);font-weight:800;line-height:1.28;}
h3{font-size:clamp(1.1rem,1.5vw,1.35rem);font-weight:700;line-height:1.4;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:var(--accent-soft);color:var(--brand-900);}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:4px;}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:76px 0;}
.section.tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--brand-500);text-transform:uppercase;margin-bottom:12px;
}
.section-head .kicker::before{
  content:"";width:14px;height:3px;border-radius:2px;background:var(--accent-500);
}
.section-head p{color:var(--muted);font-size:15.5px;line-height:1.85;margin-top:12px;}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(247,242,232,.95);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(18,60,51,.1);background:rgba(255,253,248,.97);}
.nav-top{display:flex;align-items:center;gap:22px;padding:14px 0 10px;}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  background:var(--brand-900);color:var(--accent-500);
  font-weight:800;font-size:20px;line-height:1;
  box-shadow:0 6px 16px rgba(18,60,51,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:800;color:var(--brand-900);letter-spacing:.06em;}
.brand-text em{font-style:normal;font-size:11.5px;letter-spacing:.26em;color:var(--brand-500);font-weight:600;}
.nav-search{
  flex:1 1 auto;max-width:620px;min-width:240px;
  display:flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:5px 6px 5px 16px;
  color:var(--muted);
  box-shadow:0 2px 10px rgba(18,60,51,.04);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,99,.14);}
.nav-search svg{flex:0 0 auto;color:var(--brand-500);}
.nav-search input{
  flex:1 1 auto;min-width:0;border:0;outline:none;background:transparent;
  font-size:14.5px;padding:9px 0;color:var(--ink);
}
.nav-search input::placeholder{color:#98A69F;font-size:14px;}
.nav-search button{
  flex:0 0 auto;border:0;cursor:pointer;
  background:var(--brand-900);color:#fff;
  border-radius:var(--r-pill);
  padding:9px 20px;font-size:14px;font-weight:600;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.nav-search button:hover{background:var(--brand-700);transform:translateY(-1px);}
.nav-search button:active{transform:translateY(0);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand-900);color:#fff;
  border:1px solid var(--brand-900);
  border-radius:12px;padding:10px 20px;
  font-size:14.5px;font-weight:600;text-decoration:none;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  box-shadow:0 6px 16px rgba(18,60,51,.16);
}
.btn-brand:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 10px 22px rgba(18,60,51,.22);}
.btn-brand:active{transform:translateY(0);}
.nav-menu-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand-900);
  cursor:pointer;transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-menu-btn:hover{background:var(--accent-soft);border-color:var(--accent-500);}
.nav-cats{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:0 0 14px;}
.cat-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;
  color:var(--brand-700);font-size:14px;font-weight:500;
  text-decoration:none;white-space:nowrap;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.cat-pill:hover{background:var(--accent-soft);border-color:var(--accent-500);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.cat-pill.active{
  background:var(--accent-soft);border-color:var(--accent-500);
  color:var(--brand-900);font-weight:700;
}
.cat-pill.active::before{content:"";width:12px;height:3px;border-radius:2px;background:var(--focus);}

/* ============ hero ============ */
.page-hero{
  padding:32px 0 58px;
  background:linear-gradient(180deg,#FBF7EE 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:26px;}
.crumb a{color:var(--brand-700);}
.crumb span[aria-hidden]{color:#AEC0B6;}
.crumb [aria-current]{color:var(--ink);font-weight:600;}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:46px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-soft);color:var(--brand-900);
  border:1px solid rgba(201,242,107,.9);
  border-radius:var(--r-pill);
  padding:6px 15px;font-size:13px;font-weight:700;letter-spacing:.06em;
  margin-bottom:18px;
}
.hero-copy h1{margin-bottom:18px;}
.lede{font-size:16.5px;line-height:1.85;color:var(--muted);max-width:600px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags a{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:14px;color:var(--brand-700);font-weight:600;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.hero-tags a:hover{background:var(--accent-soft);border-color:var(--accent-500);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.hero-figure{
  margin:0;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(18,60,51,.1);
  box-shadow:var(--shadow-md);background:var(--surface);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-figure figcaption{
  padding:12px 18px;font-size:13px;color:var(--muted);
  border-top:1px solid var(--line);background:var(--surface);line-height:1.7;
}

/* ============ panel / cards ============ */
.panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px;
  box-shadow:var(--shadow-sm);
}
.device-rows{display:grid;gap:14px;}
.device-row{
  display:grid;grid-template-columns:58px 1.05fr 1.5fr auto;
  gap:22px;align-items:center;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px 26px;
  box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.device-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#C6D5C9;}
.device-icon{
  width:58px;height:58px;border-radius:16px;
  display:grid;place-items:center;
  background:var(--accent-soft);color:var(--brand-900);
  border:1px solid rgba(201,242,107,.85);
}
.device-row h3{margin-bottom:4px;font-size:1.12rem;}
.device-row .sub{font-size:13px;color:var(--muted);letter-spacing:.04em;}
.device-row p{font-size:14.5px;line-height:1.75;color:var(--muted);margin:0;}
.status{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:700;white-space:nowrap;
  background:var(--accent-soft);color:var(--brand-900);
  border:1px solid rgba(201,242,107,.95);
}
.status::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--focus);}
.status.ok{background:#EDF5EA;color:var(--brand-700);border-color:#CFE3CE;}
.status.ok::before{background:var(--brand-500);}
.status.warn{background:var(--warm-soft);color:#9C4B22;border-color:#F0D3BE;}
.status.warn::before{background:var(--warm-500);}

/* ============ split list ============ */
.split{display:grid;grid-template-columns:.82fr 1.18fr;gap:52px;align-items:start;}
.split .sticky-note{position:sticky;top:132px;}
.notice{
  margin-top:22px;padding:18px 20px;border-radius:var(--r-md);
  background:var(--warm-soft);border:1px solid #F0D3BE;
  color:#8A4420;font-size:14px;line-height:1.75;
}
.check-list{display:grid;gap:14px;counter-reset:step;}
.check-list li{
  counter-increment:step;
  position:relative;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:20px 22px 20px 66px;
  box-shadow:0 4px 14px rgba(18,60,51,.05);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.check-list li:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);border-color:#C6D5C9;}
.check-list li::before{
  counter(step,decimal-leading-zero);
  content:counter(step,decimal-leading-zero);
  position:absolute;left:20px;top:19px;
  width:32px;height:32px;border-radius:10px;
  display:grid;place-items:center;
  background:var(--accent-soft);color:var(--brand-900);
  font-size:13px;font-weight:800;letter-spacing:.04em;
}
.check-list h3{font-size:1.02rem;margin-bottom:6px;}
.check-list p{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0;}

/* ============ feature blocks ============ */
.feature-block{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center;}
.feature-block + .feature-block{margin-top:56px;}
.feature-block.reverse .feature-media{order:2;}
.feature-media{margin:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);background:var(--surface);}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s var(--ease);}
.feature-media:hover img{transform:scale(1.03);}
.feature-body h3{margin-bottom:12px;font-size:1.32rem;}
.feature-body p{color:var(--muted);font-size:15.5px;line-height:1.85;}
.mini-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px;}
.mini-tags span{
  font-size:13px;font-weight:600;color:var(--brand-700);
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);padding:6px 14px;
}
.mini-tags span.hot{background:var(--accent-soft);border-color:var(--accent-500);color:var(--brand-900);}

/* ============ faq ============ */
.faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:48px;align-items:start;}
.faq-side{position:sticky;top:132px;}
.faq-side p{color:var(--muted);font-size:15px;line-height:1.85;margin-top:12px;}
.faq-acc{--bs-accordion-border-width:0;}
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--surface);margin-bottom:12px;overflow:hidden;
  box-shadow:0 4px 14px rgba(18,60,51,.05);
}
.faq-acc .accordion-item:last-child{margin-bottom:0;}
.faq-acc .accordion-header{margin:0;}
.faq-acc .accordion-button{
  background:transparent;color:var(--brand-900);
  font-size:16px;font-weight:700;line-height:1.6;
  padding:18px 56px 18px 22px;box-shadow:none;border:0;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-acc .accordion-button:hover{background:#F5FAE8;}
.faq-acc .accordion-button:focus{outline:none;box-shadow:inset 0 0 0 2px var(--focus);}
.faq-acc .accordion-button:not(.collapsed){
  background:#F5FAE8;color:var(--brand-900);
  box-shadow:inset 3px 0 0 var(--accent-500);
}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;
  width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);background:#fff;
  color:var(--brand-700);font-size:17px;font-weight:700;line-height:1;
  position:absolute;right:20px;top:50%;margin-top:-14px;transform:none;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  content:"−";background:var(--accent-500);border-color:var(--accent-500);color:var(--brand-900);
}
.faq-acc .accordion-body{padding:4px 22px 22px;color:var(--muted);font-size:15px;line-height:1.85;}
.faq-acc .accordion-body strong{color:var(--brand-900);}

/* ============ pills nav ============ */
.pill-links{display:flex;flex-wrap:wrap;gap:10px;}
.pill-links a{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  color:var(--brand-700);font-size:14.5px;font-weight:600;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.pill-links a:hover{background:var(--accent-soft);border-color:var(--accent-500);color:var(--brand-900);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.pill-links a.current{background:var(--accent-soft);border-color:var(--accent-500);color:var(--brand-900);}

/* ============ cta ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-900);color:#fff;
  border-radius:24px;padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 22px 48px rgba(18,60,51,.22);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(115deg,rgba(201,242,107,.14) 0 2px,transparent 2px 46px),
    radial-gradient(circle at 84% 18%,rgba(201,242,107,.18),transparent 52%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{color:#fff;margin-bottom:10px;}
.cta-band p{color:#C6DACF;font-size:15px;line-height:1.8;max-width:560px;}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:12px;flex:0 0 auto;}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent-500);color:var(--brand-900);
  border:1px solid var(--accent-500);border-radius:12px;
  padding:14px 28px;font-size:15.5px;font-weight:700;text-decoration:none;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  box-shadow:0 12px 26px rgba(201,242,107,.24);
}
.btn-accent:hover{background:#D9F98A;border-color:#D9F98A;color:var(--brand-900);text-decoration:none;transform:translateY(-2px);box-shadow:0 18px 34px rgba(201,242,107,.3);}
.cta-link{color:#C6DACF;font-size:14px;text-decoration:underline;text-underline-offset:4px;}
.cta-link:hover{color:var(--accent-500);}

/* ============ footer ============ */
.site-footer{background:#0E2F28;color:#D7E4DC;padding:64px 0 26px;margin-top:84px;}
.footer-grid{display:grid;grid-template-columns:1.45fr .8fr .8fr .9fr;gap:38px;}
.site-footer .brand-mark{background:var(--accent-500);color:var(--brand-900);box-shadow:none;}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:var(--accent-500);}
.site-footer .brand:hover{text-decoration:none;}
.footer-desc{color:#A9C0B6;font-size:14px;line-height:1.85;margin-top:18px;max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.06em;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:#B9CCC3;font-size:14px;}
.footer-col a:hover{color:var(--accent-500);text-decoration:none;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#93AFA4;
}
.footer-bottom p{margin:0;}

/* ============ responsive ============ */
@media (max-width:1199.98px){
  .split,.faq-grid{gap:36px;}
  .device-row{grid-template-columns:52px 1fr 1.4fr;grid-template-areas:"icon title status" "icon desc desc";align-items:start;}
  .device-row .device-icon{grid-area:icon;width:52px;height:52px;}
  .device-row .row-title{grid-area:title;}
  .device-row .row-desc{grid-area:desc;}
  .device-row .row-status{grid-area:status;justify-self:end;}
}
@media (max-width:991.98px){
  .section{padding:56px 0;}
  .nav-top{flex-wrap:wrap;row-gap:12px;}
  .nav-search{order:3;flex:0 0 100%;max-width:none;min-width:0;}
  .nav-actions{margin-left:auto;}
  .nav-actions .btn-brand{display:none;}
  .nav-menu-btn{display:inline-flex;}
  .nav-cats{
    flex-wrap:nowrap;overflow-x:auto;padding-bottom:12px;
    scrollbar-width:none;-webkit-overflow-scrolling:touch;
  }
  .nav-cats::-webkit-scrollbar{display:none;}
  .cat-pill{flex:0 0 auto;}
  .nav-cats.collapsed-mobile{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .hero-figure{order:2;}
  .hero-figure img{aspect-ratio:16/9;}
  .split,.faq-grid,.feature-block{grid-template-columns:1fr;gap:28px;}
  .split .sticky-note,.faq-side{position:static;}
  .feature-block.reverse .feature-media{order:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 30px;}
  .site-footer{margin-top:60px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .wrap{padding:0 18px;}
  .section{padding:44px 0;}
  .page-hero{padding:24px 0 42px;}
  .device-row{
    grid-template-columns:48px 1fr;
    grid-template-areas:"icon title" "desc desc" "status status";
    padding:20px;
    row-gap:12px;
  }
  .device-row .device-icon{width:48px;height:48px;border-radius:14px;}
  .device-row .row-status{justify-self:start;}
  .check-list li{padding:18px 18px 18px 60px;}
  .check-list li::before{left:16px;top:17px;width:30px;height:30px;}
  .cta-actions{width:100%;}
  .btn-accent{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .hero-figure figcaption{font-size:12.5px;}
}
@media (max-width:519.98px){
  .brand-text strong{font-size:15.5px;}
  .brand-text em{letter-spacing:.2em;font-size:11px;}
  .brand-mark{width:38px;height:38px;font-size:18px;}
  .nav-search{padding-left:13px;}
  .nav-search button{padding:8px 15px;font-size:13.5px;}
  .nav-search input::placeholder{font-size:13px;}
  .footer-grid{grid-template-columns:1fr;}
  .panel{padding:20px;}
  .cta-band{padding:28px 22px;border-radius:20px;}
  .mini-tags span{font-size:12.5px;padding:5px 12px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category5 */
:root{
  --brand-900:#123C33;
  --brand-700:#185749;
  --brand-500:#1E7A63;
  --accent-500:#C9F26B;
  --accent-soft:#EAF7C8;
  --warm-500:#D9784A;
  --bg:#F7F2E8;
  --surface:#FFFDF8;
  --ink:#16231F;
  --muted:#5F6F68;
  --line:#D9E1D8;
  --focus:#7DA62D;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow-1:0 10px 28px rgba(18,60,51,.07);
  --shadow-2:0 16px 36px rgba(18,60,51,.12);
  --maxw:1260px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-900);text-decoration:underline;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:6px;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;width:100%;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,242,232,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 22px rgba(18,60,51,.10);}
.nav-top{display:flex;align-items:center;gap:20px;padding:14px 0 12px;}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  background:var(--brand-900);color:var(--accent-500);
  display:grid;place-items:center;font-weight:800;font-size:20px;
  box-shadow:inset 0 0 0 1px rgba(201,242,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:800;color:var(--brand-900);letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.22em;}
.nav-search{
  flex:1 1 auto;max-width:600px;margin:0 auto;
  display:flex;align-items:center;gap:8px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:5px 5px 5px 16px;color:#8FA096;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search:focus-within{border-color:var(--focus);box-shadow:0 0 0 4px rgba(125,166,45,.16);background:#fff;}
.nav-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);padding:9px 0;
}
.nav-search input::placeholder{color:#97A49D;}
.nav-search button{
  flex:0 0 auto;border:0;cursor:pointer;
  background:var(--brand-900);color:#fff;
  border-radius:var(--r-pill);padding:9px 18px;font-size:14px;font-weight:600;
  transition:background .2s ease,transform .2s ease;
}
.nav-search button:hover{background:var(--brand-700);transform:translateY(-1px);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-900);color:#fff;
  border:1px solid var(--brand-900);border-radius:12px;
  padding:10px 18px;font-size:14px;font-weight:600;white-space:nowrap;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.nav-menu-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);color:var(--brand-900);
  cursor:pointer;transition:background .2s ease,border-color .2s ease;
}
.nav-menu-btn:hover{background:var(--accent-soft);border-color:var(--accent-500);}
.nav-cats{display:flex;flex-wrap:wrap;gap:8px;padding:0 0 13px;}
.cat-pill{
  position:relative;
  display:inline-flex;align-items:center;
  padding:7px 17px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface);
  color:var(--brand-700);font-size:14px;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.cat-pill:hover{background:var(--accent-soft);border-color:var(--accent-500);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.cat-pill.active{background:var(--brand-900);border-color:var(--brand-900);color:#fff;font-weight:600;}
.cat-pill.active:hover{background:var(--brand-900);color:#fff;}
.cat-pill.active::after{
  content:"";position:absolute;left:50%;bottom:-7px;transform:translateX(-50%);
  width:18px;height:3px;border-radius:2px;background:var(--accent-500);
}

/* ============ 分类 Hero ============ */
.hero-cat{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;isolation:isolate;}
.hero-cat-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  opacity:.32;
}
.hero-cat::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(105deg,rgba(18,60,51,.96) 0%,rgba(18,60,51,.88) 52%,rgba(24,87,73,.72) 100%);
}
.hero-cat-inner{padding:38px 0 54px;max-width:980px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;}
.crumbs a{color:rgba(255,255,255,.86);}
.crumbs a:hover{color:var(--accent-500);text-decoration:none;}
.crumbs span{color:rgba(255,255,255,.4);}
.crumbs span[aria-current]{color:var(--accent-500);}
.cat-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(201,242,107,.16);color:var(--accent-500);
  border:1px solid rgba(201,242,107,.42);
  border-radius:var(--r-pill);padding:6px 15px;font-size:13px;font-weight:600;
  margin-bottom:18px;
}
.cat-badge i{width:6px;height:6px;border-radius:50%;background:var(--accent-500);display:inline-block;}
.hero-cat h1{
  font-size:clamp(2rem,4vw,3.2rem);
  font-weight:800;line-height:1.18;letter-spacing:.01em;
  margin-bottom:18px;color:#fff;
}
.hero-cat h1 span{color:var(--accent-500);}
.hero-lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.84);max-width:840px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-tags a{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);
  color:#fff;font-size:14px;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.hero-tags a:hover{background:var(--accent-500);border-color:var(--accent-500);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.hero-meta{margin-top:26px;font-size:13px;color:rgba(255,255,255,.62);display:flex;flex-wrap:wrap;gap:18px;}
.hero-meta span{display:inline-flex;align-items:center;gap:6px;}

/* ============ 通用板块 ============ */
.sec{padding:72px 0;}
.sec-tight{padding:56px 0;}
.sec-head{max-width:760px;margin-bottom:34px;}
.sec-head h2{font-size:clamp(1.5rem,2.5vw,2.05rem);font-weight:800;line-height:1.3;color:var(--brand-900);margin-bottom:12px;}
.sec-head p{color:var(--muted);font-size:16px;}

/* ============ 目录 + FAQ ============ */
.faq-layout{padding-top:60px;}
.side-stack{display:flex;flex-direction:column;gap:20px;}
.toc-card{
  position:sticky;top:104px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-1);
}
.toc-title{
  font-size:13px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--brand-500);margin-bottom:16px;
}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:flex;align-items:center;gap:11px;
  padding:10px 12px;border-radius:var(--r-sm);
  color:var(--ink);font-size:15px;
  border-left:3px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a span{
  font-size:12px;font-weight:700;color:var(--brand-500);
  background:var(--accent-soft);border-radius:6px;padding:2px 7px;letter-spacing:.04em;
}
.toc-list a:hover{background:#F2F6EA;color:var(--brand-900);text-decoration:none;}
.toc-list a.current{background:var(--accent-soft);border-left-color:var(--accent-500);color:var(--brand-900);font-weight:600;}
.toc-foot{border-top:1px dashed var(--line);margin-top:18px;padding-top:18px;}
.toc-foot p{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  width:100%;padding:11px 18px;border-radius:12px;
  border:1px solid var(--brand-700);background:transparent;color:var(--brand-700);
  font-size:14px;font-weight:600;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;text-decoration:none;transform:translateY(-1px);}
.side-note{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);}
.side-note img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.side-note p{font-size:14px;color:var(--muted);padding:14px 20px 18px;line-height:1.7;}

.faq-group{margin-bottom:44px;scroll-margin-top:110px;}
.faq-group:last-child{margin-bottom:0;}
.group-title{
  display:flex;align-items:center;gap:12px;
  font-size:clamp(1.2rem,2vw,1.45rem);font-weight:800;color:var(--brand-900);
  margin-bottom:18px;
}
.group-title span{
  font-size:13px;font-weight:800;color:var(--brand-900);
  background:var(--accent-500);border-radius:8px;padding:3px 9px;letter-spacing:.04em;
}
.accordion-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md)!important;overflow:hidden;
  margin-bottom:12px;transition:box-shadow .22s ease,border-color .22s ease;
}
.accordion-item:hover{border-color:#C4D2C6;box-shadow:var(--shadow-1);}
.accordion-header{margin:0;}
.accordion-button{
  background:var(--surface);color:var(--ink);
  font-size:16px;font-weight:600;line-height:1.6;
  padding:17px 52px 17px 20px;border:0;border-radius:0!important;
  box-shadow:none;transition:background .2s ease,color .2s ease;
}
.accordion-button:not(.collapsed){
  background:var(--accent-soft);color:var(--brand-900);
  box-shadow:inset 4px 0 0 var(--accent-500);
}
.accordion-button:focus{outline:none;box-shadow:none;background:#F2F6EA;}
.accordion-button:not(.collapsed):focus{box-shadow:inset 4px 0 0 var(--accent-500);}
.accordion-button:focus-visible{outline:2px solid var(--focus);outline-offset:-2px;}
.accordion-button::after{
  content:"+";background-image:none!important;
  width:28px;height:28px;flex:0 0 28px;border-radius:50%;
  display:grid;place-items:center;
  font-size:19px;font-weight:400;line-height:1;color:var(--brand-700);
  background:rgba(30,122,99,.08);
  transform:none!important;margin-left:auto;right:16px;
  transition:background .2s ease,color .2s ease;
}
.accordion-button:not(.collapsed)::after{content:"−";background:var(--brand-900);color:var(--accent-500);}
.accordion-body{
  padding:16px 22px 20px;color:var(--muted);font-size:15px;line-height:1.88;
  border-top:1px solid rgba(217,225,216,.7);background:var(--surface);
}
.accordion-body a{font-weight:600;border-bottom:1px solid rgba(24,87,73,.28);}
.accordion-body a:hover{text-decoration:none;border-bottom-color:var(--brand-900);}

/* ============ 反馈准备 ============ */
.prep{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--shadow-1);
}
.prep h2{font-size:clamp(1.35rem,2.2vw,1.8rem);font-weight:800;color:var(--brand-900);margin-bottom:12px;line-height:1.35;}
.prep .prep-lead{color:var(--muted);margin-bottom:26px;max-width:620px;}
.prep-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.prep-item{
  display:flex;gap:14px;align-items:flex-start;
  background:#FBFCF6;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.prep-item:hover{border-color:var(--accent-500);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.prep-item b{
  flex:0 0 30px;width:30px;height:30px;border-radius:9px;
  background:var(--brand-900);color:var(--accent-500);
  display:grid;place-items:center;font-size:13px;font-weight:800;
}
.prep-item h3{font-size:15px;font-weight:700;color:var(--brand-900);margin-bottom:4px;line-height:1.5;}
.prep-item p{font-size:14px;color:var(--muted);line-height:1.7;}
.prep-media{margin-top:24px;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);}
.prep-media img{width:100%;aspect-ratio:16/7;object-fit:cover;}

/* ============ 相关分类 ============ */
.rel-wrap{background:#F1F6E7;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.rel-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:22px;}
.rel-head h2{font-size:clamp(1.3rem,2.1vw,1.7rem);font-weight:800;color:var(--brand-900);}
.rel-head p{font-size:14px;color:var(--muted);}
.rel-pills{display:flex;flex-wrap:wrap;gap:12px;}
.rel-pill{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:11px 20px;color:var(--brand-900);font-size:15px;font-weight:600;
  transition:background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.rel-pill svg{color:var(--brand-500);}
.rel-pill:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-1);}
.rel-pill:hover svg{color:var(--accent-500);}

/* ============ CTA ============ */
.cta-band{background:var(--brand-900);color:#fff;position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.16;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(201,242,107,.55) 0 2px,transparent 2px 26px);
}
.cta-inner{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:28px;padding:56px 0;
}
.cta-inner h2{font-size:clamp(1.4rem,2.5vw,2rem);font-weight:800;line-height:1.32;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15px;max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent-500);color:var(--brand-900);
  border-radius:12px;padding:13px 26px;font-size:15px;font-weight:700;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-accent:hover{background:#D9F98F;color:var(--brand-900);text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.22);}
.cta-link{color:#fff;font-size:15px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.45);padding-bottom:2px;}
.cta-link:hover{color:var(--accent-500);border-bottom-color:var(--accent-500);text-decoration:none;}

/* ============ 页脚 ============ */
.site-footer{background:#0E2E27;color:rgba(255,255,255,.76);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:rgba(255,255,255,.55);}
.site-footer .brand-mark{background:rgba(201,242,107,.14);color:var(--accent-500);box-shadow:inset 0 0 0 1px rgba(201,242,107,.35);}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:330px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.08em;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;transition:color .2s ease;}
.footer-col a:hover{color:var(--accent-500);text-decoration:none;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-search{max-width:480px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px;}
}
@media (max-width:991.98px){
  .nav-top{flex-wrap:wrap;gap:12px;padding:12px 0 10px;}
  .nav-search{order:3;flex:1 0 100%;max-width:none;margin:2px 0 0;}
  .nav-actions{margin-left:auto;}
  .nav-menu-btn{display:inline-flex;}
  .nav-cats{
    display:none;gap:8px;padding:12px 0 4px;
    overflow-x:auto;flex-wrap:nowrap;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
  }
  .nav-cats::-webkit-scrollbar{display:none;}
  .nav-cats.open{display:flex;}
  .cat-pill.active::after{bottom:-5px;}
  .hero-cat-inner{padding:28px 0 44px;}
  .hero-lead{font-size:16px;}
  .sec{padding:52px 0;}
  .faq-layout{padding-top:44px;}
  .toc-card{position:static;top:auto;}
  .side-stack{margin-bottom:34px;}
  .prep{padding:26px 22px;}
  .prep-grid{grid-template-columns:1fr;}
  .cta-inner{padding:44px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575.98px){
  .wrap{padding:0 16px;}
  .brand-mark{width:38px;height:38px;flex-basis:38px;font-size:18px;}
  .brand-text strong{font-size:16px;}
  .btn-brand{padding:9px 14px;font-size:13px;}
  .hero-cat h1{font-size:1.72rem;}
  .hero-tags a{font-size:13px;padding:7px 13px;}
  .hero-meta{font-size:12px;gap:12px;}
  .sec{padding:40px 0;}
  .accordion-button{font-size:15px;padding:15px 48px 15px 16px;}
  .accordion-body{padding:14px 16px 18px;font-size:14.5px;}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch;}
  .btn-accent{width:100%;}
  .cta-link{text-align:center;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}