/* roulang page: index */
:root{
  --ink:#123C33;
  --ink-2:#1B5548;
  --accent:#D4622A;
  --sage:#7FA99B;
  --paper:#F7F4EE;
  --dark:#0B1512;
  --text:#15201C;
  --muted:#5F6B66;
  --line:#DDD6C8;
  --radius:18px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(15,30,25,.04);
  --shadow-md:0 20px 40px -30px rgba(15,30,25,.35);
  --shadow-lg:0 28px 60px -34px rgba(15,30,25,.45);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--paper);
  background-image:radial-gradient(rgba(18,60,51,.045) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;color:var(--text);}
p{margin:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(18,60,51,.15);}

.container{max-width:1240px;margin:0 auto;padding:0 20px;}
@media(min-width:640px){.container{padding:0 28px;}}
@media(min-width:1024px){.container{padding:0 36px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.86);
  backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid rgba(221,214,200,.9);
}
.nav-wrap{display:flex;align-items:center;gap:18px;height:70px;}
.logo{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--ink),var(--ink-2));
  color:#F7F4EE;display:grid;place-items:center;
  font-size:15px;font-weight:700;letter-spacing:-.04em;
  box-shadow:0 8px 18px -12px rgba(18,60,51,.8);
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-.03em;color:var(--ink);white-space:nowrap;}
.nav-links{display:none;align-items:center;gap:4px;margin-left:8px;}
.nav-links a{
  padding:8px 13px;border-radius:999px;font-size:15px;color:#3A4844;
  transition:background .25s var(--ease),color .25s var(--ease);
}
.nav-links a:hover{background:rgba(18,60,51,.07);color:var(--ink);}
.nav-links a.active{background:var(--ink);color:#F7F4EE;}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.search-box{
  display:none;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:8px 12px 8px 14px;min-width:230px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.search-box:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(18,60,51,.12);}
.search-box input{border:0;outline:0;background:transparent;font-size:14px;width:100%;color:var(--text);}
.search-box input::placeholder{color:#93A09B;}
.kbd{font-size:11px;color:#7C8884;border:1px solid var(--line);border-radius:6px;padding:1px 6px;background:#FBF9F5;}
.icon-btn{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:none;place-items:center;color:var(--ink);
  transition:transform .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.icon-btn:hover{transform:translateY(-1px);border-color:var(--sage);background:#FCFAF6;}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--ink);color:#F7F4EE;border:0;border-radius:999px;
  padding:12px 22px;font-size:15px;font-weight:600;
  transition:transform .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
  box-shadow:0 10px 24px -18px rgba(18,60,51,.9);
}
.btn-primary:hover{background:var(--ink-2);transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(18,60,51,.5);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--ink);border:1px solid var(--ink);
  border-radius:999px;padding:11px 22px;font-size:15px;font-weight:600;
  transition:background .25s var(--ease),transform .25s var(--ease);
}
.btn-ghost:hover{background:rgba(18,60,51,.08);transform:translateY(-1px);}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);color:#fff;border:0;border-radius:999px;
  padding:11px 22px;font-size:15px;font-weight:600;
  transition:transform .25s var(--ease),filter .25s var(--ease);
}
.btn-accent:hover{transform:translateY(-1px);filter:brightness(1.06);}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--ink);outline-offset:2px;
}
.nav-cta{display:none;}
.nav-toggle{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;color:var(--ink);
}
.drawer{
  display:none;border-top:1px solid var(--line);background:#FFFDFA;padding:16px 0 22px;
}
.drawer.open{display:block;}
.drawer .drawer-search{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 14px;margin-bottom:14px;}
.drawer a.d-link{display:block;padding:12px 14px;border-radius:12px;font-size:16px;color:#2C3B36;}
.drawer a.d-link:hover,.drawer a.d-link.active{background:rgba(18,60,51,.08);color:var(--ink);font-weight:600;}
.drawer .btn-primary{width:100%;margin-top:14px;}
@media(min-width:1024px){
  .nav-links{display:flex;}
  .search-box{display:flex;}
  .icon-btn{display:grid;}
  .nav-cta{display:inline-flex;}
  .nav-toggle{display:none;}
}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 64px;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.16;z-index:0;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(247,244,238,.96) 0%,rgba(247,244,238,.78) 46%,rgba(247,244,238,.45) 100%);
  z-index:1;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;gap:44px;align-items:center;}
@media(min-width:1024px){
  .hero{padding:76px 0 88px;}
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:60px;}
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.06em;color:var(--ink);
  background:rgba(255,255,255,.75);border:1px solid var(--line);
  border-radius:999px;padding:7px 14px;margin-bottom:22px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:99px;background:var(--accent);}
.hero h1{
  font-size:clamp(2.3rem,5.6vw,4.4rem);
  line-height:1.08;letter-spacing:-.03em;margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--ink);}
.hero-sub{font-size:clamp(1rem,1.6vw,1.18rem);color:var(--muted);max-width:36em;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px;}
.hero-actions .btn-primary,.hero-actions .btn-ghost{flex:1 1 auto;min-width:150px;}
@media(min-width:640px){.hero-actions .btn-primary,.hero-actions .btn-ghost{flex:0 0 auto;}}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  font-size:13px;color:#3C4C46;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:6px 13px;
}
.hero-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:14px;box-shadow:var(--shadow-lg);
}
.hero-card .cover{border-radius:14px;overflow:hidden;aspect-ratio:16/10;background:#EDE9E0;}
.hero-card .cover img{width:100%;height:100%;object-fit:cover;}
.hero-card-body{padding:18px 8px 8px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:#fff;background:var(--accent);border-radius:999px;padding:5px 12px;
}
.badge.sage{background:var(--sage);}
.badge.ink{background:var(--ink);}
.hero-card h3{font-size:20px;margin:14px 0 8px;letter-spacing:-.02em;}
.hero-card p{font-size:14.5px;color:var(--muted);line-height:1.75;}
.hero-card .meta{
  display:flex;align-items:center;gap:12px;margin-top:16px;padding-top:14px;
  border-top:1px dashed var(--line);font-size:13px;color:var(--muted);
}
.hero-float{
  position:absolute;right:-6px;bottom:-18px;background:var(--dark);color:#EDE9E0;
  border-radius:16px;padding:12px 16px;font-size:13px;line-height:1.5;
  box-shadow:var(--shadow-lg);max-width:210px;
}
.hero-float strong{display:block;font-size:20px;color:#fff;letter-spacing:-.02em;}

/* ---------- stats ---------- */
.stats{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.stats > div{padding:22px 20px;background:#fff;}
.stats > div + div{border-left:0;}
.stats .num{font-size:clamp(1.5rem,3vw,2rem);font-weight:700;color:var(--ink);letter-spacing:-.03em;}
.stats .lbl{font-size:13.5px;color:var(--muted);margin-top:4px;}
@media(min-width:768px){.stats{grid-template-columns:repeat(4,1fr);}.stats > div + div{border-left:1px solid var(--line);}}

/* ---------- sections ---------- */
.section{padding:64px 0;}
@media(min-width:768px){.section{padding:80px 0;}}
@media(min-width:1024px){.section{padding:104px 0;}}
.section-head{max-width:720px;margin-bottom:38px;}
.section-label{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  letter-spacing:.08em;color:var(--accent);margin-bottom:12px;
}
.section-label::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
.section-head h2{font-size:clamp(1.7rem,3vw,2.5rem);line-height:1.2;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;}

/* ---------- category cards ---------- */
.cat-grid{display:grid;gap:20px;}
@media(min-width:768px){.cat-grid{grid-template-columns:repeat(2,1fr);gap:24px;}}
.cat-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px 24px;overflow:hidden;
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),background .32s var(--ease),border-color .32s var(--ease);
  box-shadow:var(--shadow-sm);display:block;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(18,60,51,.35);background:var(--ink);}
.cat-card:hover .cat-num,.cat-card:hover h3,.cat-card:hover p,.cat-card:hover .cat-foot{color:#F7F4EE;}
.cat-card:hover .cat-num{border-color:rgba(247,244,238,.4);}
.cat-card:hover .arrow{color:#F7F4EE;transform:translateX(4px);}
.cat-num{
  width:52px;height:52px;border-radius:14px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:17px;font-weight:700;color:var(--ink);
  letter-spacing:-.02em;transition:all .32s var(--ease);
}
.cat-card h3{font-size:20px;margin:18px 0 10px;transition:color .32s var(--ease);}
.cat-card p{font-size:14.5px;color:var(--muted);line-height:1.8;transition:color .32s var(--ease);}
.cat-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:22px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--muted);transition:all .32s var(--ease);
}
.cat-card:hover .cat-foot{border-color:rgba(247,244,238,.28);}
.arrow{display:inline-flex;transition:transform .3s var(--ease),color .3s var(--ease);}

/* ---------- featured ---------- */
.feat-grid{display:grid;gap:22px;}
@media(min-width:768px){.feat-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.feat-grid{grid-template-columns:repeat(3,1fr);gap:26px;}}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
  box-shadow:var(--shadow-sm);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(18,60,51,.32);}
.card .thumb{aspect-ratio:16/10;overflow:hidden;background:#EDE9E0;position:relative;}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card:hover .thumb img{transform:scale(1.03);}
.card .thumb .tag-abs{position:absolute;left:12px;top:12px;}
.card .body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;}
.card h3{font-size:18.5px;line-height:1.45;margin-bottom:10px;transition:color .28s var(--ease);}
.card:hover h3{color:var(--ink);}
.card p.excerpt{font-size:14.5px;color:var(--muted);line-height:1.8;flex:1;}
.card .meta-row{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:18px;padding-top:14px;border-top:1px solid #EFEAE0;
  font-size:13px;color:#77837E;
}
.dot-sep{width:4px;height:4px;border-radius:99px;background:var(--line);}
.read-link{display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-weight:600;font-size:14px;margin-left:auto;}
.read-link:hover{text-decoration:underline;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);background:#FFFDFA;
  padding:46px 24px;text-align:center;color:var(--muted);font-size:15px;
}

/* ---------- split feature ---------- */
.split{display:grid;gap:34px;align-items:center;}
@media(min-width:1024px){.split{grid-template-columns:1.15fr .85fr;gap:56px;}}
.split-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-md);}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.check-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px solid #EDE8DE;
}
.check-list li:last-child{border-bottom:0;}
.check-list .mark{
  width:26px;height:26px;border-radius:9px;flex:none;margin-top:3px;
  background:rgba(18,60,51,.08);color:var(--ink);display:grid;place-items:center;font-size:13px;font-weight:700;
}
.check-list h4{font-size:16.5px;margin-bottom:4px;}
.check-list p{font-size:14.5px;color:var(--muted);line-height:1.75;}

/* ---------- scroll rail ---------- */
.rail{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory;}
.rail::-webkit-scrollbar{height:8px;}
.rail::-webkit-scrollbar-thumb{background:#DAD3C6;border-radius:99px;}
.rail::-webkit-scrollbar-track{background:transparent;}
.rail .card{min-width:290px;max-width:320px;scroll-snap-align:start;}
@media(min-width:768px){.rail .card{min-width:330px;}}

/* ---------- dark cta ---------- */
.cta-band{
  background:linear-gradient(120deg,#0B1512 0%,#123C33 100%);
  color:#EDE9E0;border-radius:var(--radius-lg);
  padding:42px 28px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(212,98,42,.32),transparent 70%);
}
.cta-band .inner{position:relative;z-index:2;display:grid;gap:26px;align-items:center;}
@media(min-width:1024px){.cta-band{padding:52px 48px;}.cta-band .inner{grid-template-columns:1.2fr .8fr;}}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.25;margin-bottom:12px;}
.cta-band p{color:#B9C4BE;font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-actions .btn-accent,.cta-actions .btn-outline-light{flex:1 1 auto;}
.btn-outline-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid rgba(237,233,224,.5);color:#EDE9E0;background:transparent;
  border-radius:999px;padding:11px 22px;font-size:15px;font-weight:600;
  transition:background .25s var(--ease),transform .25s var(--ease);
}
.btn-outline-light:hover{background:rgba(237,233,224,.12);transform:translateY(-1px);}
.toast{
  margin-top:16px;font-size:14px;color:#9FE0BE;min-height:22px;
}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:center;gap:16px;padding:22px 4px;color:var(--text);
  font-size:17px;font-weight:600;letter-spacing:-.01em;
  transition:color .25s var(--ease);
}
.faq-q:hover{color:var(--ink);}
.faq-q .sign{
  margin-left:auto;width:28px;height:28px;border-radius:9px;flex:none;
  border:1px solid var(--line);display:grid;place-items:center;
  font-size:16px;font-weight:400;color:var(--ink);background:#fff;
  transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease);
}
.faq-item.open .faq-q .sign{transform:rotate(45deg);background:var(--ink);color:#fff;border-color:var(--ink);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s var(--ease);}
.faq-a p{padding:0 4px 24px;color:var(--muted);font-size:15.5px;line-height:1.85;max-width:64ch;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#C3CCC7;margin-top:24px;padding:58px 0 28px;}
.footer-grid{display:grid;gap:36px;}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}}
.site-footer h4{color:#fff;font-size:15px;letter-spacing:.02em;margin-bottom:16px;}
.site-footer p{font-size:14px;line-height:1.85;color:#98A39E;}
.site-footer a{font-size:14px;color:#C3CCC7;transition:color .22s var(--ease);}
.site-footer a:hover{color:#fff;text-decoration:underline;}
.footer-links li{margin-bottom:10px;}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-logo .logo-mark{background:#F7F4EE;color:var(--ink);}
.footer-logo .logo-text{color:#fff;}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px;}
.sub-form input{
  flex:1 1 160px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
  border-radius:12px;padding:11px 14px;color:#fff;font-size:14px;outline:0;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.sub-form input::placeholder{color:#7F8B86;}
.sub-form input:focus{border-color:var(--sage);background:rgba(255,255,255,.1);}
.sub-form button{border:0;border-radius:12px;padding:11px 18px;font-size:14px;font-weight:600;background:var(--sage);color:#0B1512;transition:filter .25s var(--ease);}
.sub-form button:hover{filter:brightness(1.08);}
.footer-note{font-size:12.5px;color:#78837E;margin-top:10px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:22px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:#89948F;
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.2);
  border-radius:999px;padding:7px 14px;color:#DCE3DF;background:transparent;
  transition:background .25s var(--ease);
}
.to-top:hover{background:rgba(255,255,255,.1);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.visible{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  *{transition-duration:.01ms !important;}
}

/* roulang page: article */
:root{
  --ink:#123C33;
  --ink-hover:#1B5548;
  --accent:#D4622A;
  --celadon:#7FA99B;
  --paper:#F7F4EE;
  --dark:#0B1512;
  --text:#15201C;
  --muted:#5F6B66;
  --line:#DDD6C8;
  --ok:#2F7D5B;
  --warn:#B7791F;
  --err:#B42318;
  --radius:18px;
  --radius-lg:24px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(15,30,25,.04);
  --shadow:0 1px 2px rgba(15,30,25,.04), 0 20px 40px -30px rgba(15,30,25,.35);
  --shadow-hover:0 2px 4px rgba(15,30,25,.05), 0 30px 55px -32px rgba(15,30,25,.45);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.drawer-open{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;}
button,input{font-family:inherit;}
h1,h2,h3,h4{letter-spacing:-.025em;line-height:1.25;margin:0;font-weight:700;}
p{margin:0;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1280px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media (min-width:640px){.container{padding-left:24px;padding-right:24px;}}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.9);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:.9rem;height:68px;}
.brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;flex:0 0 auto;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--ink);color:#F7F4EE;
  display:grid;place-items:center;font-weight:700;font-size:15px;letter-spacing:-.02em;
  box-shadow:0 8px 18px -12px rgba(18,60,51,.75);
}
.logo-text{font-weight:700;font-size:17px;letter-spacing:-.025em;color:var(--text);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:.1rem;margin-left:.7rem;}
.nav-links a{
  position:relative;padding:.5rem .72rem;border-radius:8px;font-size:14.5px;
  color:var(--muted);text-decoration:none;transition:color .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--ink);background:rgba(18,60,51,.06);}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:.72rem;right:.72rem;bottom:.18rem;height:2px;
  border-radius:2px;background:var(--accent);
}
.header-right{margin-left:auto;display:flex;align-items:center;gap:.55rem;}
.command-search{
  display:flex;align-items:center;gap:.5rem;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:.38rem .5rem .38rem .85rem;width:240px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.command-search:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(18,60,51,.1);}
.command-search svg{flex:0 0 auto;color:var(--muted);}
.command-search input{border:0;outline:0;background:transparent;font-size:14px;width:100%;color:var(--text);}
.command-search input::placeholder{color:#9AA5A0;}
.kbd{
  font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:6px;
  padding:.05rem .34rem;background:var(--paper);white-space:nowrap;flex:0 0 auto;
}
.icon-btn{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;color:var(--muted);cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:var(--ink);border-color:var(--ink);transform:translateY(-1px);background:#fff;}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;align-items:center;justify-content:center;
}
.menu-toggle:hover{border-color:var(--ink);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.4rem;
  border-radius:999px;font-weight:600;font-size:14.5px;padding:.7rem 1.15rem;
  text-decoration:none;cursor:pointer;border:1px solid transparent;
  transition:transform .18s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--ink);color:#F7F4EE;}
.btn-primary:hover{background:var(--ink-hover);transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(18,60,51,.5);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:rgba(18,60,51,.08);border-color:var(--ink);}
.btn-light{background:#F7F4EE;color:var(--ink);}
.btn-light:hover{background:#fff;transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#F7F4EE;border-color:rgba(247,244,238,.35);}
.btn-outline-light:hover{background:rgba(247,244,238,.12);border-color:rgba(247,244,238,.7);}
.btn-sm{padding:.48rem .9rem;font-size:13.5px;}

/* ---------- mobile drawer ---------- */
.mobile-drawer{
  position:fixed;left:0;right:0;top:68px;bottom:0;background:var(--paper);z-index:55;
  padding:1.25rem 1rem 2rem;overflow-y:auto;
  transform:translateY(-10px);opacity:0;pointer-events:none;
  transition:opacity .25s var(--ease),transform .25s var(--ease);
}
.mobile-drawer.open{opacity:1;transform:none;pointer-events:auto;}
.mobile-drawer .command-search{width:100%;margin-bottom:1rem;}
.mobile-drawer a.m-link{
  display:block;padding:.85rem .9rem;border-radius:12px;text-decoration:none;
  color:var(--text);font-size:15.5px;border:1px solid transparent;
}
.mobile-drawer a.m-link:hover{background:#fff;border-color:var(--line);color:var(--ink);}
.mobile-drawer .btn{width:100%;margin-top:.9rem;}

/* ---------- breadcrumb & article head ---------- */
.article-hero{
  position:relative;
  padding:2.25rem 0 1.75rem;
  background-image:linear-gradient(180deg,rgba(247,244,238,.94),rgba(247,244,238,.99)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem;font-size:13.5px;color:var(--muted);margin-bottom:1.1rem;}
.crumbs a{color:var(--muted);text-decoration:none;border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);}
.crumbs a:hover{color:var(--ink);border-color:var(--ink);}
.crumbs .sep{color:#B9C2BD;}
.crumbs .current{color:var(--text);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{font-size:clamp(1.85rem,4vw,2.85rem);line-height:1.22;letter-spacing:-.03em;color:var(--text);max-width:900px;}
.article-meta{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.1rem;}
.meta-chip{
  display:inline-flex;align-items:center;gap:.35rem;font-size:13px;color:var(--muted);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:.28rem .75rem;
}
.meta-chip.tag{color:var(--accent);border-color:rgba(212,98,42,.35);background:rgba(212,98,42,.06);font-weight:600;}
.article-deck{margin-top:1rem;max-width:820px;color:var(--muted);font-size:16px;line-height:1.85;}

/* ---------- article body ---------- */
.article-shell{padding:2.75rem 0 3rem;}
.article-wrap{max-width:820px;margin:0 auto;}
.share-bar{
  display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:.8rem 0;margin-bottom:2rem;
}
.share-bar .label{font-size:13.5px;color:var(--muted);margin-right:.25rem;}
.article-body{font-size:17px;line-height:1.9;color:#1E2A25;}
.article-body > * + *{margin-top:1.05em;}
.article-body h2{
  font-size:clamp(1.3rem,2.4vw,1.7rem);font-weight:700;line-height:1.32;
  margin-top:2.3em;padding-left:.8rem;border-left:4px solid var(--accent);
}
.article-body h3{font-size:1.16rem;font-weight:600;margin-top:1.9em;}
.article-body h4{font-size:1.02rem;font-weight:600;margin-top:1.6em;color:var(--ink);}
.article-body p{color:#22302A;}
.article-body a{color:var(--ink);text-decoration:none;border-bottom:1px solid rgba(18,60,51,.32);transition:border-color .2s var(--ease),color .2s var(--ease);}
.article-body a:hover{color:var(--accent);border-color:var(--accent);}
.article-body ul,.article-body ol{padding-left:1.35em;}
.article-body li{margin:.45em 0;}
.article-body ul li::marker{color:var(--celadon);}
.article-body ol li::marker{color:var(--ink);font-weight:600;}
.article-body blockquote{
  margin:1.8em 0;padding:1rem 1.25rem;background:#fff;border-left:3px solid var(--celadon);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--muted);font-size:16px;
}
.article-body img{border-radius:14px;border:1px solid var(--line);margin:1.6em 0;width:100%;}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.5em 0;}
.article-body strong{font-weight:600;color:var(--ink);}
.article-body code{
  background:#fff;border:1px solid var(--line);border-radius:6px;
  padding:.1rem .38rem;font-size:14.5px;color:var(--ink);
}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;background:#fff;border-radius:12px;overflow:hidden;}
.article-body th,.article-body td{border:1px solid var(--line);padding:.6rem .8rem;text-align:left;}
.article-body th{background:rgba(18,60,51,.05);font-weight:600;color:var(--ink);}

.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);
  padding:3rem 1.5rem;text-align:center;
}
.empty-state h2{font-size:1.35rem;margin-bottom:.6rem;}
.empty-state p{color:var(--muted);margin-bottom:1.4rem;}

/* ---------- CTA band ---------- */
.cta-section{padding:0 0 3.5rem;}
.cta-band{
  position:relative;overflow:hidden;background:var(--dark);color:#F7F4EE;
  border-radius:var(--radius-lg);padding:2.5rem 1.75rem;
  display:flex;flex-wrap:wrap;gap:1.5rem;align-items:center;justify-content:space-between;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(212,98,42,.35),transparent 68%);
}
.cta-band h3{font-size:clamp(1.25rem,2.4vw,1.6rem);color:#F7F4EE;}
.cta-band p{color:#A9B6B0;font-size:15px;margin-top:.5rem;max-width:46ch;}
.cta-actions{display:flex;gap:.6rem;flex-wrap:wrap;position:relative;z-index:1;}

/* ---------- related ---------- */
.section{padding:0 0 3.5rem;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;margin-bottom:1.6rem;flex-wrap:wrap;}
.section-head h2{font-size:clamp(1.4rem,2.8vw,2rem);}
.section-head p{color:var(--muted);font-size:15px;margin-top:.4rem;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem;}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;text-decoration:none;height:100%;
  box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(18,60,51,.25);}
.post-media{overflow:hidden;background:#EFEBE2;}
.post-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease);}
.post-card:hover .post-media img{transform:scale(1.03);}
.post-body{padding:1.15rem 1.2rem 1.35rem;display:flex;flex-direction:column;gap:.55rem;flex:1;}
.post-badge{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--accent);
  background:rgba(212,98,42,.08);border:1px solid rgba(212,98,42,.25);
  border-radius:999px;padding:.15rem .6rem;
}
.post-title{font-size:1.06rem;font-weight:600;line-height:1.45;color:var(--text);transition:color .2s var(--ease);}
.post-card:hover .post-title{color:var(--ink);}
.post-desc{font-size:14.5px;color:var(--muted);line-height:1.75;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);padding-top:.6rem;}
.post-foot .arrow{color:var(--ink);transition:transform .25s var(--ease);}
.post-card:hover .post-foot .arrow{transform:translateX(4px);}

.back-home-card{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem 1.5rem;
  box-shadow:var(--shadow-sm);
}
.back-home-card h3{font-size:1.1rem;}
.back-home-card p{color:var(--muted);font-size:14.5px;margin-top:.3rem;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#D9DED9;padding:3.25rem 0 1.5rem;margin-top:1rem;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:2.25rem;}
.footer-logo{display:flex;align-items:center;gap:.55rem;margin-bottom:.9rem;}
.footer-logo .logo-mark{background:#F7F4EE;color:var(--ink);}
.footer-logo .logo-text{color:#F7F4EE;}
.site-footer p{font-size:14.5px;line-height:1.85;color:#A3B0AA;max-width:38ch;}
.footer-note{font-size:13px;color:#77857F;margin-top:.6rem;}
.site-footer h4{font-size:14px;color:#F7F4EE;margin-bottom:.9rem;letter-spacing:.01em;}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.55rem;}
.footer-links a{color:#A3B0AA;text-decoration:none;font-size:14.5px;transition:color .2s var(--ease);}
.footer-links a:hover{color:#F7F4EE;}
.sub-form{display:flex;gap:.5rem;margin:.9rem 0 .2rem;flex-wrap:wrap;}
.sub-form input{
  flex:1;min-width:150px;background:rgba(247,244,238,.08);border:1px solid rgba(247,244,238,.18);
  border-radius:var(--radius-sm);padding:.6rem .8rem;color:#F7F4EE;font-size:14px;outline:0;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input::placeholder{color:rgba(247,244,238,.45);}
.sub-form input:focus{border-color:var(--celadon);box-shadow:0 0 0 3px rgba(127,169,155,.22);}
.sub-form button{
  background:var(--accent);color:#fff;border:0;border-radius:var(--radius-sm);
  padding:.6rem 1.1rem;font-weight:600;font-size:14px;cursor:pointer;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.sub-form button:hover{background:#BE5522;transform:translateY(-1px);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem;
  border-top:1px solid rgba(247,244,238,.12);margin-top:2.5rem;padding-top:1.25rem;
  font-size:13.5px;color:#8A9691;
}
.to-top{display:inline-flex;align-items:center;gap:.35rem;color:#F7F4EE;text-decoration:none;font-size:13.5px;transition:color .2s var(--ease);}
.to-top:hover{color:var(--celadon);}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,16px);
  background:var(--ink);color:#F7F4EE;font-size:14px;padding:.7rem 1.15rem;border-radius:999px;
  box-shadow:0 18px 40px -18px rgba(11,21,18,.7);opacity:0;pointer-events:none;
  transition:opacity .25s var(--ease),transform .25s var(--ease);z-index:90;white-space:nowrap;
}
.toast.show{opacity:1;transform:translate(-50%,0);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-links{margin-left:.35rem;}
  .nav-links a{padding:.5rem .55rem;font-size:14px;}
  .command-search{width:190px;}
}
@media (max-width:1024px){
  .nav-links,.command-search,.header-right .icon-btn,.header-right .btn{display:none;}
  .menu-toggle{display:inline-flex;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:2rem;}
  .article-shell{padding:2rem 0 2.5rem;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .header-inner{height:64px;}
  .mobile-drawer{top:64px;}
  .article-title{font-size:1.65rem;}
  .grid-3{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:1.9rem 1.25rem;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .crumbs .current{max-width:100%;white-space:normal;}
  .article-body{font-size:16px;line-height:1.9;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
    --jade:#123C33;
    --jade-600:#1B5548;
    --cinder:#D4622A;
    --celadon:#7FA99B;
    --paper:#F7F4EE;
    --ink:#15201C;
    --muted:#5F6B66;
    --line:#DDD6C8;
    --dark:#0B1512;
    --ok:#2F7D5B;
    --radius:20px;
    --radius-sm:12px;
    --shadow-1:0 1px 2px rgba(15,30,25,.04), 0 20px 40px -30px rgba(15,30,25,.35);
    --shadow-2:0 4px 10px rgba(15,30,25,.06), 0 34px 60px -34px rgba(15,30,25,.45);
  }

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

  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }

  body{
    margin:0;
    font-family:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--ink);
    background-color:var(--paper);
    background-image:
      radial-gradient(rgba(18,60,51,.035) 1px, transparent 1px),
      radial-gradient(rgba(18,60,51,.025) 1px, transparent 1px);
    background-size:26px 26px, 26px 26px;
    background-position:0 0, 13px 13px;
    overflow-x:hidden;
  }

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

  a{ color:inherit; text-decoration:none; }

  a.underline-link{
    color:var(--jade);
    position:relative;
    font-weight:500;
  }
  a.underline-link::after{
    content:"";
    position:absolute;
    left:0; bottom:-2px;
    width:100%; height:1px;
    background:currentColor;
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .32s cubic-bezier(.2,.7,.2,1);
  }
  a.underline-link:hover::after{ transform:scaleX(1); }

  button{ font-family:inherit; cursor:pointer; }

  input{ font-family:inherit; }

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
  }
  @media (min-width:640px){ .container{ padding:0 28px; } }
  @media (min-width:1024px){ .container{ padding:0 32px; } }

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    letter-spacing:.08em;
    text-transform:uppercase;
    color:var(--jade);
    font-weight:600;
  }
  .eyebrow .dot{
    width:7px;height:7px;border-radius:999px;background:var(--cinder);display:inline-block;
  }

  .chip{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:4px 12px;
    border-radius:999px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.72);
    color:var(--muted);
    font-size:13px;
    line-height:1.6;
    white-space:nowrap;
  }
  .chip-cinder{
    border-color:rgba(212,98,42,.32);
    background:rgba(212,98,42,.08);
    color:#A8461B;
  }
  .chip-jade{
    border-color:rgba(18,60,51,.24);
    background:rgba(18,60,51,.07);
    color:var(--jade);
  }

  .num-badge{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:38px;
    height:38px;
    padding:0 10px;
    border-radius:12px;
    background:var(--jade);
    color:#F7F4EE;
    font-weight:700;
    font-size:14px;
    letter-spacing:.02em;
    font-variant-numeric:tabular-nums;
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:999px;
    padding:13px 24px;
    font-size:15px;
    font-weight:600;
    line-height:1;
    border:1px solid transparent;
    transition:background-color .25s cubic-bezier(.2,.7,.2,1), color .25s, border-color .25s, transform .2s, box-shadow .25s;
  }
  .btn:focus-visible{
    outline:none;
    box-shadow:0 0 0 2px var(--paper), 0 0 0 4px var(--jade);
  }
  .btn-primary{
    background:var(--jade);
    color:#F7F4EE;
    box-shadow:0 10px 24px -14px rgba(18,60,51,.6);
  }
  .btn-primary:hover{
    background:var(--jade-600);
    transform:translateY(-1px);
    box-shadow:0 14px 28px -12px rgba(18,60,51,.55);
  }
  .btn-primary:active{ transform:translateY(0); }
  .btn-ghost{
    background:transparent;
    color:var(--jade);
    border-color:rgba(18,60,51,.35);
  }
  .btn-ghost:hover{
    background:rgba(18,60,51,.08);
    border-color:var(--jade);
    transform:translateY(-1px);
  }
  .btn-ghost:active{ transform:translateY(0); }
  .btn-light{
    background:#F7F4EE;
    color:var(--jade);
  }
  .btn-light:hover{ background:#ffffff; transform:translateY(-1px); }
  .btn-outline-light{
    background:transparent;
    color:#F7F4EE;
    border-color:rgba(247,244,238,.4);
  }
  .btn-outline-light:hover{
    background:rgba(247,244,238,.12);
    border-color:rgba(247,244,238,.75);
    transform:translateY(-1px);
  }

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(247,244,238,.88);
    backdrop-filter:saturate(150%) blur(12px);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{
    display:flex;
    align-items:center;
    gap:18px;
    min-height:70px;
  }
  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .logo-mark{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:34px;
    height:34px;
    border-radius:10px;
    background:var(--jade);
    color:#F7F4EE;
    font-weight:700;
    font-size:16px;
    letter-spacing:.02em;
  }
  .logo-text{
    font-weight:700;
    font-size:17px;
    letter-spacing:-.02em;
    color:var(--ink);
    white-space:nowrap;
  }
  .nav-links{
    display:none;
    align-items:center;
    gap:4px;
    margin-left:12px;
    flex:1 1 auto;
  }
  .nav-links a{
    position:relative;
    padding:9px 13px;
    border-radius:10px;
    font-size:15px;
    font-weight:500;
    color:var(--muted);
    transition:color .2s, background-color .2s;
    white-space:nowrap;
  }
  .nav-links a:hover{ color:var(--jade); background:rgba(18,60,51,.06); }
  .nav-links a.active{ color:var(--jade); font-weight:600; }
  .nav-links a.active::after{
    content:"";
    position:absolute;
    left:13px; right:13px; bottom:3px;
    height:2px;
    border-radius:2px;
    background:var(--cinder);
  }
  .nav-tools{
    display:flex;
    align-items:center;
    gap:10px;
    margin-left:auto;
  }
  .search-box{
    display:none;
    align-items:center;
    gap:8px;
    width:250px;
    padding:8px 10px 8px 12px;
    border:1px solid var(--line);
    border-radius:12px;
    background:#fff;
    transition:border-color .22s, box-shadow .22s;
  }
  .search-box:focus-within{
    border-color:var(--celadon);
    box-shadow:0 0 0 3px rgba(127,169,155,.22);
  }
  .search-box input{
    flex:1;
    border:0;
    outline:none;
    background:transparent;
    font-size:14px;
    color:var(--ink);
  }
  .search-box input::placeholder{ color:#9AA5A0; }
  .kbd{
    font-size:11px;
    color:var(--muted);
    border:1px solid var(--line);
    border-radius:6px;
    padding:1px 5px;
    background:var(--paper);
    white-space:nowrap;
  }
  .icon-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:38px;
    height:38px;
    border-radius:11px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--muted);
    transition:color .2s, border-color .2s, background-color .2s, transform .2s;
  }
  .icon-btn:hover{
    color:var(--jade);
    border-color:rgba(18,60,51,.3);
    background:rgba(18,60,51,.05);
    transform:translateY(-1px);
  }
  .icon-btn:focus-visible{ outline:none; box-shadow:0 0 0 3px rgba(18,60,51,.2); }
  .nav-cta{ display:none; }
  .menu-toggle{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:40px;
    height:40px;
    border-radius:11px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--jade);
  }
  .menu-toggle:hover{ background:rgba(18,60,51,.06); }

  .drawer{
    display:none;
    border-top:1px solid var(--line);
    background:rgba(247,244,238,.98);
    padding:18px 0 24px;
  }
  .drawer.open{ display:block; }
  .drawer .nav-links{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    margin:14px 0 0;
  }
  .drawer .nav-links a{
    padding:12px 12px;
    border-radius:12px;
    font-size:16px;
  }
  .drawer .nav-links a.active::after{ display:none; }
  .drawer .nav-links a.active{ background:rgba(18,60,51,.08); }

  @media (min-width:1024px){
    .nav-links{ display:flex; }
    .search-box{ display:flex; }
    .nav-cta{ display:inline-flex; }
    .menu-toggle{ display:none; }
    .drawer{ display:none !important; }
  }

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    overflow:hidden;
    border-bottom:1px solid var(--line);
    background-image:linear-gradient(115deg, rgba(247,244,238,.96) 0%, rgba(247,244,238,.86) 42%, rgba(18,60,51,.72) 100%), url('/assets/images/backpic/back-1.png');
    background-size:cover;
    background-position:center;
  }
  .hero::after{
    content:"";
    position:absolute;
    inset:auto 0 -1px 0;
    height:1px;
    background:linear-gradient(90deg, transparent, rgba(18,60,51,.25), transparent);
  }
  .hero-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:34px;
    padding:56px 0 60px;
    position:relative;
    z-index:2;
  }
  @media (min-width:1024px){
    .hero-grid{
      grid-template-columns:1.05fr .95fr;
      align-items:center;
      padding:72px 0 78px;
      gap:56px;
    }
  }
  .hero-title{
    font-size:clamp(2.1rem, 5.2vw, 3.5rem);
    line-height:1.1;
    letter-spacing:-.03em;
    font-weight:700;
    margin:18px 0 0;
    color:var(--ink);
  }
  .hero-title em{
    font-style:normal;
    color:var(--jade);
  }
  .hero-sub{
    margin-top:18px;
    font-size:17px;
    line-height:1.85;
    color:var(--muted);
    max-width:38em;
  }
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:26px;
  }
  .hero-tags{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-top:24px;
  }
  .hero-visual{ position:relative; }
  .hero-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow-2);
    overflow:hidden;
  }
  .hero-card .cover{
    position:relative;
    aspect-ratio:16/9;
    overflow:hidden;
    background:#EDE7DC;
  }
  .hero-card .cover img{
    width:100%; height:100%; object-fit:cover;
  }
  .hero-overlay-badge{
    position:absolute;
    left:14px; top:14px;
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 12px;
    border-radius:999px;
    background:rgba(11,21,18,.78);
    color:#F7F4EE;
    font-size:12px;
    letter-spacing:.04em;
  }
  .hero-card-body{ padding:18px 20px 20px; }
  .hero-mini{
    position:absolute;
    right:-6px;
    bottom:-22px;
    width:min(58%, 260px);
    background:#fff;
    border:1px solid var(--line);
    border-radius:16px;
    box-shadow:var(--shadow-1);
    padding:14px 16px;
  }
  @media (max-width:520px){
    .hero-mini{ position:static; width:100%; margin-top:16px; }
  }
  .hero-mini strong{ display:block; font-size:14px; color:var(--ink); }
  .hero-mini span{ font-size:13px; color:var(--muted); }

  /* ---------- 目录条 ---------- */
  .dir-strip{
    display:grid;
    grid-template-columns:1fr;
    border:1px solid var(--line);
    border-radius:var(--radius);
    background:#fff;
    overflow:hidden;
    box-shadow:var(--shadow-1);
  }
  @media (min-width:640px){ .dir-strip{ grid-template-columns:repeat(2,1fr); } }
  @media (min-width:1024px){ .dir-strip{ grid-template-columns:repeat(3,1fr); } }
  .dir-item{
    display:flex;
    align-items:center;
    gap:14px;
    padding:20px 22px;
    border-bottom:1px solid var(--line);
    transition:background-color .25s, color .25s;
  }
  .dir-item:hover{ background:rgba(18,60,51,.045); }
  .dir-item .idx{
    font-size:13px;
    font-weight:700;
    color:var(--cinder);
    font-variant-numeric:tabular-nums;
    letter-spacing:.06em;
    min-width:26px;
  }
  .dir-item .txt{ flex:1; }
  .dir-item .txt strong{ display:block; font-size:16px; font-weight:600; color:var(--ink); }
  .dir-item .txt span{ font-size:13px; color:var(--muted); }
  .dir-item .go{
    color:var(--celadon);
    transition:transform .25s, color .25s;
  }
  .dir-item:hover .go{ transform:translateX(4px); color:var(--jade); }

  /* ---------- 条目卡 ---------- */
  .entry-card{
    display:flex;
    flex-direction:column;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    overflow:hidden;
    box-shadow:var(--shadow-1);
    transition:transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s, border-color .35s;
  }
  .entry-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-2);
    border-color:rgba(18,60,51,.28);
  }
  .entry-cover{
    display:block;
    position:relative;
    aspect-ratio:16/9;
    overflow:hidden;
    background:#EDE7DC;
  }
  .entry-cover img{
    width:100%; height:100%; object-fit:cover;
    transition:transform .5s cubic-bezier(.2,.7,.2,1);
  }
  .entry-card:hover .entry-cover img{ transform:scale(1.03); }
  .entry-body{ padding:20px 22px 22px; display:flex; flex-direction:column; flex:1; }
  .entry-meta{
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:12px;
  }
  .entry-body h3{
    font-size:19px;
    line-height:1.4;
    font-weight:600;
    letter-spacing:-.02em;
    margin:0 0 10px;
  }
  .entry-body h3 a{ transition:color .25s; }
  .entry-card:hover .entry-body h3 a{ color:var(--jade); }
  .entry-body p{
    margin:0 0 16px;
    font-size:15px;
    line-height:1.8;
    color:var(--muted);
  }
  .entry-foot{
    margin-top:auto;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding-top:14px;
    border-top:1px dashed var(--line);
    font-size:13px;
    color:var(--muted);
  }
  .entry-foot .arrow{
    color:var(--cinder);
    font-weight:600;
    transition:transform .25s;
  }
  .entry-card:hover .entry-foot .arrow{ transform:translateX(4px); }

  /* ---------- 核对清单 ---------- */
  .check-list{ display:grid; gap:14px; }
  @media (min-width:768px){ .check-list{ grid-template-columns:repeat(2,1fr); } }
  .check-item{
    display:flex;
    gap:14px;
    padding:18px 20px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:16px;
    transition:border-color .25s, transform .25s;
  }
  .check-item:hover{ border-color:rgba(18,60,51,.28); transform:translateY(-2px); }
  .check-mark{
    flex:0 0 auto;
    width:26px; height:26px;
    border-radius:8px;
    background:rgba(47,125,91,.12);
    color:var(--ok);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    margin-top:2px;
  }
  .check-item strong{ display:block; font-size:16px; font-weight:600; margin-bottom:4px; }
  .check-item span{ font-size:14.5px; color:var(--muted); line-height:1.75; }

  /* ---------- FAQ ---------- */
  .faq-list{
    border-top:1px solid var(--line);
  }
  .faq-item{
    border-bottom:1px solid var(--line);
  }
  .faq-q{
    width:100%;
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:18px;
    padding:22px 0;
    background:transparent;
    border:0;
    text-align:left;
    font-size:17px;
    font-weight:600;
    line-height:1.55;
    letter-spacing:-.01em;
    color:var(--ink);
    transition:color .22s;
  }
  .faq-q:hover{ color:var(--jade); }
  .faq-q:focus-visible{ outline:none; box-shadow:0 0 0 2px rgba(18,60,51,.35); border-radius:8px; }
  .faq-icon{
    flex:0 0 auto;
    width:28px; height:28px;
    border-radius:999px;
    border:1px solid var(--line);
    color:var(--jade);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:17px;
    line-height:1;
    transition:background-color .25s, transform .25s, border-color .25s;
  }
  .faq-q[aria-expanded="true"] .faq-icon{
    background:var(--jade);
    border-color:var(--jade);
    color:#F7F4EE;
    transform:rotate(180deg);
  }
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .38s cubic-bezier(.2,.7,.2,1), opacity .3s;
    opacity:0;
  }
  .faq-a.open{ opacity:1; }
  .faq-a p{
    margin:0 0 22px;
    font-size:15.5px;
    line-height:1.9;
    color:var(--muted);
    max-width:60em;
  }

  /* ---------- 深色 CTA ---------- */
  .cta-band{
    background:var(--dark);
    color:#F7F4EE;
    border-radius:var(--radius);
    padding:38px 28px;
    position:relative;
    overflow:hidden;
  }
  .cta-band::before{
    content:"";
    position:absolute;
    right:-90px; top:-90px;
    width:280px; height:280px;
    border-radius:999px;
    background:radial-gradient(circle, rgba(212,98,42,.28), transparent 68%);
  }
  .cta-inner{
    position:relative;
    z-index:2;
    display:grid;
    gap:24px;
  }
  @media (min-width:900px){
    .cta-inner{ grid-template-columns:1.4fr 1fr; align-items:center; padding:6px 6px; }
  }
  .cta-band h2{
    font-size:clamp(1.5rem, 2.6vw, 2.05rem);
    line-height:1.25;
    letter-spacing:-.02em;
    margin:0 0 10px;
    font-weight:700;
  }
  .cta-band p{ margin:0; color:rgba(247,244,238,.72); font-size:15px; line-height:1.8; }
  .cta-actions{ display:flex; flex-wrap:wrap; gap:12px; }
  @media (max-width:520px){ .cta-actions .btn{ width:100%; } }

  .toast{
    position:fixed;
    left:50%;
    bottom:30px;
    transform:translate(-50%, 18px);
    background:var(--jade);
    color:#F7F4EE;
    padding:12px 20px;
    border-radius:999px;
    font-size:14px;
    box-shadow:0 18px 34px -18px rgba(11,21,18,.7);
    opacity:0;
    pointer-events:none;
    transition:opacity .3s, transform .3s;
    z-index:80;
  }
  .toast.show{ opacity:1; transform:translate(-50%, 0); }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--dark);
    color:rgba(247,244,238,.82);
    margin-top:72px;
    padding:56px 0 26px;
  }
  .site-footer .footer-logo{
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:16px;
  }
  .site-footer .logo-text{ color:#F7F4EE; }
  .site-footer .logo-mark{ background:#F7F4EE; color:var(--dark); }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:34px;
  }
  @media (min-width:640px){ .footer-grid{ grid-template-columns:repeat(2,1fr); } }
  @media (min-width:1024px){ .footer-grid{ grid-template-columns:1.5fr 1fr 1fr 1.3fr; gap:40px; } }
  .site-footer p{
    margin:0 0 12px;
    font-size:14.5px;
    line-height:1.85;
    color:rgba(247,244,238,.66);
    max-width:34em;
  }
  .site-footer h4{
    font-size:15px;
    font-weight:600;
    color:#F7F4EE;
    margin:0 0 16px;
    letter-spacing:.01em;
  }
  .footer-links{
    list-style:none;
    margin:0; padding:0;
    display:grid;
    gap:10px;
  }
  .footer-links a{
    font-size:14.5px;
    color:rgba(247,244,238,.68);
    transition:color .22s, padding-left .22s;
  }
  .footer-links a:hover{ color:#F7F4EE; padding-left:4px; }
  .footer-note{
    font-size:13px !important;
    color:rgba(247,244,238,.5) !important;
    margin-top:12px !important;
  }
  .sub-form{
    display:flex;
    gap:8px;
    margin-top:4px;
  }
  .sub-form input{
    flex:1;
    min-width:0;
    padding:12px 14px;
    border-radius:12px;
    border:1px solid rgba(247,244,238,.22);
    background:rgba(247,244,238,.06);
    color:#F7F4EE;
    font-size:14px;
    outline:none;
    transition:border-color .22s, box-shadow .22s;
  }
  .sub-form input::placeholder{ color:rgba(247,244,238,.42); }
  .sub-form input:focus{
    border-color:var(--celadon);
    box-shadow:0 0 0 3px rgba(127,169,155,.25);
  }
  .sub-form button{
    padding:12px 20px;
    border-radius:12px;
    border:0;
    background:#F7F4EE;
    color:var(--dark);
    font-size:14px;
    font-weight:600;
    transition:background-color .22s, transform .22s;
  }
  .sub-form button:hover{ background:#fff; transform:translateY(-1px); }
  .footer-bottom{
    margin-top:40px;
    padding-top:20px;
    border-top:1px solid rgba(247,244,238,.14);
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    align-items:center;
    justify-content:space-between;
    font-size:13.5px;
    color:rgba(247,244,238,.55);
  }
  .to-top{
    display:inline-flex;
    align-items:center;
    gap:6px;
    color:rgba(247,244,238,.7);
    transition:color .22s, transform .22s;
  }
  .to-top:hover{ color:#F7F4EE; transform:translateY(-2px); }

  /* ---------- 动效 ---------- */
  .reveal{
    opacity:0;
    transform:translateY(12px);
    transition:opacity .5s cubic-bezier(.2,.7,.2,1), transform .5s cubic-bezier(.2,.7,.2,1);
  }
  .reveal.in{ opacity:1; transform:none; }

  @media (prefers-reduced-motion: reduce){
    html{ scroll-behavior:auto; }
    .reveal{ opacity:1; transform:none; transition:none; }
    *{ animation-duration:.001ms !important; transition-duration:.001ms !important; }
  }

/* roulang page: category3 */
:root{
  --ink:#123C33;
  --ink-600:#1B5548;
  --ink-050:rgba(18,60,51,.06);
  --accent:#D4622A;
  --sage:#7FA99B;
  --paper:#F7F4EE;
  --white:#FFFFFF;
  --dark:#0B1512;
  --text:#15201C;
  --muted:#5F6B66;
  --line:#DDD6C8;
  --success:#2F7D5B;
  --warn:#B7791F;
  --error:#B42318;
  --radius:20px;
  --radius-sm:12px;
  --shadow-card:0 1px 2px rgba(15,30,25,.04), 0 20px 40px -30px rgba(15,30,25,.35);
  --shadow-card-hover:0 2px 4px rgba(15,30,25,.05), 0 30px 50px -28px rgba(15,30,25,.42);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--paper);
  background-image:
    radial-gradient(rgba(18,60,51,.035) 1px, transparent 1px),
    radial-gradient(rgba(18,60,51,.025) 1px, transparent 1px);
  background-size:24px 24px, 24px 24px;
  background-position:0 0, 12px 12px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
h1,h2,h3,h4{letter-spacing:-.025em;line-height:1.2;margin:0;font-weight:700}
p{margin:0}
ul{margin:0;padding:0}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:11px;background:var(--ink);color:#F7F4EE;
  display:grid;place-items:center;font-size:15px;font-weight:700;letter-spacing:0;
  box-shadow:0 8px 18px -10px rgba(18,60,51,.7);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.02em;color:var(--ink)}
.nav-links{display:none;align-items:center;gap:2px;margin-left:6px}
.nav-links a{
  padding:8px 13px;border-radius:999px;font-size:15px;color:var(--muted);
  font-weight:500;transition:color .25s var(--ease),background-color .25s var(--ease);
}
.nav-links a:hover{color:var(--ink);background:var(--ink-050)}
.nav-links a.active{color:var(--ink);background:rgba(18,60,51,.1);font-weight:600}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:10px}
.cmd-search{
  display:none;align-items:center;gap:8px;
  height:40px;padding:0 10px 0 14px;border:1px solid var(--line);
  border-radius:999px;background:rgba(255,255,255,.75);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
  min-width:238px;
}
.cmd-search:focus-within{border-color:rgba(18,60,51,.45);box-shadow:0 0 0 4px rgba(18,60,51,.08)}
.cmd-search svg{flex-shrink:0;color:var(--muted)}
.cmd-search input{
  border:none;background:transparent;outline:none;width:100%;font-size:14px;color:var(--text)
}
.cmd-search input::placeholder{color:#98A29C}
.cmd-search kbd{
  font-size:11px;color:var(--muted);border:1px solid var(--line);
  border-radius:6px;padding:1px 5px;background:#fff;font-family:inherit;white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--muted);background:rgba(255,255,255,.7);
  transition:all .25s var(--ease);
}
.icon-btn:hover{color:var(--ink);border-color:rgba(18,60,51,.4);transform:translateY(-1px)}
.icon-btn:active{transform:translateY(0)}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:var(--ink);color:#F7F4EE;border-radius:999px;padding:11px 20px;
  font-size:15px;font-weight:600;letter-spacing:-.01em;
  transition:transform .25s var(--ease),background-color .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-primary:hover{background:var(--ink-600);transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(18,60,51,.5)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  border:1px solid rgba(18,60,51,.35);color:var(--ink);border-radius:999px;
  padding:10px 20px;font-size:15px;font-weight:600;background:transparent;
  transition:all .25s var(--ease);
}
.btn-ghost:hover{background:rgba(18,60,51,.08);transform:translateY(-1px)}
.btn-dark{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:#F7F4EE;color:var(--dark);border-radius:999px;padding:11px 22px;
  font-size:15px;font-weight:600;transition:all .25s var(--ease);
}
.btn-dark:hover{background:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(0,0,0,.6)}
.btn-outline-light{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  border:1px solid rgba(247,244,238,.4);color:#F7F4EE;border-radius:999px;
  padding:10px 22px;font-size:15px;font-weight:600;transition:all .25s var(--ease);
}
.btn-outline-light:hover{background:rgba(247,244,238,.12);border-color:rgba(247,244,238,.7)}
.menu-toggle{display:grid}
.header-cta{display:none}
@media (min-width:1024px){
  .nav-links{display:flex}
  .cmd-search{display:flex}
  .header-cta{display:inline-flex}
  .menu-toggle{display:none}
}
@media (min-width:640px) and (max-width:1023px){
  .cmd-search{display:none}
}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:rgba(247,244,238,.98);
  padding:16px 0 22px;
}
.mobile-drawer.open{display:block}
.mobile-drawer .drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:14px;
}
.mobile-drawer .drawer-search input{border:none;outline:none;background:transparent;width:100%;font-size:15px}
.mobile-drawer nav{display:grid;gap:4px;margin-bottom:14px}
.mobile-drawer nav a{
  padding:11px 14px;border-radius:12px;font-size:16px;color:var(--muted);font-weight:500;
  transition:all .2s var(--ease);
}
.mobile-drawer nav a:hover,.mobile-drawer nav a.active{background:rgba(18,60,51,.09);color:var(--ink);font-weight:600}
.mobile-drawer .btn-primary{width:100%}

/* ---------- Common blocks ---------- */
.section{padding:64px 0}
@media (min-width:640px){.section{padding:80px 0}}
@media (min-width:1024px){.section{padding:104px 0}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--accent);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:block}
.h2{font-size:clamp(1.75rem,3.2vw,2.6rem);line-height:1.2;color:var(--ink)}
.lead{color:var(--muted);font-size:16px;line-height:1.9;max-width:64ch}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-card);transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(18,60,51,.25)}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:4px 11px;border-radius:999px;background:rgba(212,98,42,.12);color:#A2481E;
  letter-spacing:.02em;
}
.badge-sage{background:rgba(127,169,155,.18);color:#3E6B5D}
.tag{
  display:inline-flex;align-items:center;font-size:13px;color:var(--muted);
  border:1px solid var(--line);border-radius:999px;padding:4px 12px;background:rgba(255,255,255,.7);
  transition:all .25s var(--ease);
}
.tag:hover{border-color:rgba(18,60,51,.4);color:var(--ink)}
.num{
  width:40px;height:40px;border-radius:12px;background:rgba(18,60,51,.08);color:var(--ink);
  display:grid;place-items:center;font-weight:700;font-size:15px;flex-shrink:0;
}
.divider{height:1px;background:var(--line);border:none;margin:0}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background-image:linear-gradient(115deg, rgba(247,244,238,.96) 0%, rgba(247,244,238,.86) 45%, rgba(234,241,238,.72) 100%), url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.hero-inner{
  display:grid;gap:44px;padding:56px 0 64px;align-items:center;
}
@media (min-width:1024px){
  .hero-inner{grid-template-columns:1.08fr .92fr;gap:56px;padding:78px 0 88px}
}
.hero h1{
  font-size:clamp(2.2rem,5.2vw,3.9rem);line-height:1.1;color:var(--ink);margin:18px 0 16px;
}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{font-size:17px;color:var(--muted);line-height:1.9;max-width:46ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
@media (max-width:520px){.hero-actions .btn-primary,.hero-actions .btn-ghost{width:100%}}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:24px;
  border:1px solid var(--line);box-shadow:0 30px 60px -40px rgba(15,30,25,.55);
}
.hero-figure .float-card{
  position:absolute;left:-8px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:14px 18px;box-shadow:var(--shadow-card);
  display:flex;align-items:center;gap:12px;
}
@media (min-width:640px){.hero-figure .float-card{left:-22px}}
.float-card .fc-num{font-size:24px;font-weight:700;color:var(--ink);line-height:1}
.float-card .fc-label{font-size:12px;color:var(--muted);letter-spacing:.02em}

/* ---------- Path steps ---------- */
.steps-grid{display:grid;gap:18px;position:relative}
@media (min-width:768px){.steps-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.steps-grid{grid-template-columns:repeat(5,1fr);gap:16px}}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px 20px;box-shadow:var(--shadow-card);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(18,60,51,.28)}
.step-card .step-index{
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--accent);
}
.step-card h3{font-size:1.05rem;margin:10px 0 8px;color:var(--ink)}
.step-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.step-card .step-dot{
  position:absolute;top:-9px;left:20px;width:18px;height:18px;border-radius:50%;
  background:var(--paper);border:2px solid var(--ink);display:grid;place-items:center;
}
.step-card .step-dot::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ---------- Module grid ---------- */
.module-grid{display:grid;gap:20px}
@media (min-width:640px){.module-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.module-grid{grid-template-columns:repeat(3,1fr)}}
.module-card{
  display:flex;flex-direction:column;gap:12px;padding:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-card);transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.module-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(18,60,51,.25)}
.module-card:hover h3{color:var(--ink)}
.module-card h3{font-size:1.18rem;color:var(--text);transition:color .3s var(--ease)}
.module-card p{font-size:15px;color:var(--muted);line-height:1.85}
.module-card .meta{
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);padding-top:14px;margin-top:auto;font-size:13px;color:var(--muted)
}
.module-card .meta .arrow{
  color:var(--ink);transition:transform .3s var(--ease);display:inline-flex;align-items:center;gap:6px;font-weight:600
}
.module-card:hover .meta .arrow{transform:translateX(4px)}
.thumb{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px;
  border:1px solid var(--line);
}

/* ---------- Checklist ---------- */
.checklist{display:grid;gap:16px}
.check-item{display:flex;gap:14px;align-items:flex-start}
.check-icon{
  width:26px;height:26px;border-radius:9px;background:rgba(47,125,91,.12);color:var(--success);
  display:grid;place-items:center;flex-shrink:0;margin-top:4px;
}
.check-item h4{font-size:1rem;color:var(--ink);margin-bottom:4px}
.check-item p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- Stats ---------- */
.stats-strip{
  display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
@media (min-width:640px){.stats-strip{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.stats-strip{grid-template-columns:repeat(4,1fr)}}
.stat-cell{background:#fff;padding:28px 24px;transition:background-color .3s var(--ease)}
.stat-cell:hover{background:#FCFAF6}
.stat-cell .val{font-size:clamp(1.8rem,3vw,2.4rem);font-weight:700;color:var(--ink);line-height:1.1}
.stat-cell .lbl{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.7}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;text-align:left;font-size:1.06rem;font-weight:600;color:var(--ink);
  transition:color .25s var(--ease);
}
.faq-q:hover{color:var(--ink-600)}
.faq-icon{
  width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;flex-shrink:0;color:var(--ink);
  transition:transform .35s var(--ease),background-color .3s var(--ease),color .3s var(--ease);
}
.faq-item.open .faq-icon{background:var(--ink);color:#F7F4EE;border-color:var(--ink);transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.faq-a-inner{padding:0 4px 24px;color:var(--muted);font-size:15.5px;line-height:1.9;max-width:76ch}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(135deg,#0B1512 0%,#123C33 100%);
  border-radius:26px;padding:44px 30px;color:#F7F4EE;position:relative;overflow:hidden;
}
@media (min-width:768px){.cta-band{padding:56px 48px}}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle, rgba(212,98,42,.35) 0%, rgba(212,98,42,0) 70%);
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;position:relative;z-index:1}
@media (max-width:520px){.cta-actions .btn-dark,.cta-actions .btn-outline-light{width:100%}}
.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,20px);
  background:var(--dark);color:#F7F4EE;padding:12px 22px;border-radius:999px;
  font-size:14px;opacity:0;pointer-events:none;transition:all .35s var(--ease);z-index:90;
  box-shadow:0 20px 40px -20px rgba(0,0,0,.6);
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.visible{opacity:1;transform:none;transition:opacity .5s var(--ease),transform .5s var(--ease)}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:#E6E1D7;padding:66px 0 26px;margin-top:0}
.footer-grid{display:grid;gap:40px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:48px}}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo .logo-mark{background:#F7F4EE;color:var(--dark)}
.footer-logo .logo-text{color:#F7F4EE;font-size:17px;font-weight:700}
.site-footer p{font-size:14.5px;color:rgba(230,225,215,.72);line-height:1.85;max-width:38ch}
.site-footer .footer-note{font-size:13px;color:rgba(230,225,215,.5);margin-top:10px}
.site-footer h4{font-size:14px;letter-spacing:.08em;color:#F7F4EE;margin-bottom:16px;text-transform:uppercase}
.footer-links{list-style:none;display:grid;gap:10px}
.footer-links a{
  font-size:14.5px;color:rgba(230,225,215,.75);transition:color .25s var(--ease),padding-left .25s var(--ease);
}
.footer-links a:hover{color:#F7F4EE;padding-left:4px}
.sub-form{display:flex;gap:8px;margin-top:4px}
.sub-form input{
  flex:1;min-width:0;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
  border-radius:12px;padding:11px 14px;font-size:14.5px;color:#F7F4EE;outline:none;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.sub-form input::placeholder{color:rgba(230,225,215,.45)}
.sub-form input:focus{border-color:rgba(247,244,238,.6);box-shadow:0 0 0 4px rgba(247,244,238,.1)}
.sub-form button{
  background:#F7F4EE;color:var(--dark);border-radius:12px;padding:11px 20px;
  font-size:14.5px;font-weight:600;transition:all .25s var(--ease);white-space:nowrap;
}
.sub-form button:hover{background:#fff;transform:translateY(-1px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.12);margin-top:46px;padding-top:22px;
  font-size:13.5px;color:rgba(230,225,215,.6);
}
.to-top{
  display:inline-flex;align-items:center;gap:7px;color:rgba(230,225,215,.8);
  transition:color .25s var(--ease),transform .25s var(--ease);
}
.to-top:hover{color:#F7F4EE;transform:translateY(-2px)}

/* roulang page: category2 */
:root{
    --ink:#123C33;
    --ink-2:#1B5548;
    --ink-deep:#0B1512;
    --orange:#D4622A;
    --orange-2:#BF5322;
    --sage:#7FA99B;
    --paper:#F7F4EE;
    --card:#FFFFFF;
    --text:#15201C;
    --muted:#5F6B66;
    --line:#DDD6C8;
    --radius-lg:20px;
    --radius-md:14px;
    --radius-sm:10px;
    --shadow-card:0 1px 2px rgba(15,30,25,.04), 0 20px 40px -30px rgba(15,30,25,.35);
    --shadow-lift:0 1px 2px rgba(15,30,25,.05), 0 28px 50px -32px rgba(15,30,25,.5);
    --ease:cubic-bezier(.2,.7,.2,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--text);
    font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    font-size:17px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background-image:radial-gradient(rgba(18,60,51,.055) 1px, transparent 1px);
    background-size:24px 24px;
    opacity:.55;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;}
  button{font-family:inherit;}
  :focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px;}

  .container{
    width:100%;
    max-width:80rem;
    margin-left:auto;
    margin-right:auto;
    padding-left:1rem;
    padding-right:1rem;
  }
  @media (min-width:640px){ .container{padding-left:1.5rem;padding-right:1.5rem;} }
  @media (min-width:1024px){ .container{padding-left:2rem;padding-right:2rem;} }
  header .container, main .container, footer .container{max-width:80rem;margin-left:auto;margin-right:auto;}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:rgba(247,244,238,.88);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    display:flex;
    align-items:center;
    gap:1rem;
    min-height:68px;
  }
  .brand{
    display:inline-flex;
    align-items:center;
    gap:.6rem;
    text-decoration:none;
    font-weight:700;
    letter-spacing:-.02em;
    flex:0 0 auto;
  }
  .logo-mark{
    width:32px;height:32px;
    border-radius:9px;
    background:var(--ink);
    color:#F7F4EE;
    display:grid;place-items:center;
    font-size:15px;font-weight:700;
    flex:0 0 auto;
  }
  .logo-text{font-size:17px;color:var(--text);}
  .nav-links{display:none;}
  @media (min-width:1024px){
    .nav-links{display:flex;align-items:center;gap:.2rem;margin-left:.4rem;}
  }
  .nav-links a{
    display:inline-block;
    padding:.45rem .78rem;
    border-radius:999px;
    color:var(--muted);
    text-decoration:none;
    font-size:15px;
    font-weight:500;
    white-space:nowrap;
    transition:color .25s var(--ease),background-color .25s var(--ease);
  }
  .nav-links a:hover{color:var(--ink);background:rgba(18,60,51,.07);}
  .nav-links a.active{color:var(--ink);background:rgba(18,60,51,.11);font-weight:600;}
  .header-tools{
    display:flex;
    align-items:center;
    gap:.55rem;
    margin-left:auto;
  }
  .cmd-search{
    display:none;
    align-items:center;
    gap:.5rem;
    height:40px;
    padding:0 .8rem;
    border:1px solid var(--line);
    border-radius:999px;
    background:#fff;
    box-shadow:0 1px 2px rgba(15,30,25,.03);
    transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
  }
  @media (min-width:1024px){ .cmd-search{display:flex;width:250px;} }
  .cmd-search:focus-within{border-color:rgba(18,60,51,.45);box-shadow:0 0 0 3px rgba(18,60,51,.09);}
  .cmd-search input{
    border:0;outline:none;background:transparent;
    font-size:14px;color:var(--text);width:100%;min-width:0;
  }
  .cmd-search input::placeholder{color:#98A29C;}
  .kbd{
    flex:0 0 auto;
    font-size:11px;
    color:var(--muted);
    border:1px solid var(--line);
    border-radius:6px;
    padding:.1rem .35rem;
    line-height:1.3;
    background:var(--paper);
  }
  .icon-btn{
    width:38px;height:38px;
    display:grid;place-items:center;
    border:1px solid var(--line);
    border-radius:999px;
    background:#fff;
    color:var(--muted);
    cursor:pointer;
    transition:color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
  }
  .icon-btn:hover{color:var(--ink);border-color:rgba(18,60,51,.4);transform:translateY(-1px);}
  .icon-btn.is-on{color:var(--orange);border-color:rgba(212,98,42,.5);}
  .menu-toggle{display:grid;}
  @media (min-width:1024px){ .menu-toggle{display:none;} }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:.45rem;
    padding:.72rem 1.35rem;
    border-radius:999px;
    font-size:15px;
    font-weight:600;
    letter-spacing:-.01em;
    text-decoration:none;
    border:1px solid transparent;
    cursor:pointer;
    transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
  }
  .btn-primary{background:var(--ink);color:#F7F4EE;box-shadow:0 10px 24px -14px rgba(18,60,51,.55);}
  .btn-primary:hover{background:var(--ink-2);transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(18,60,51,.6);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:transparent;color:var(--ink);border-color:rgba(18,60,51,.35);}
  .btn-ghost:hover{background:rgba(18,60,51,.08);border-color:var(--ink);}
  .btn-sm{padding:.55rem 1.05rem;font-size:14px;}
  .btn-cinnabar{background:var(--orange);color:#fff;}
  .btn-cinnabar:hover{background:var(--orange-2);transform:translateY(-1px);}

  /* ---------- 徽章 / 标签 ---------- */
  .badge-orange{
    display:inline-flex;
    align-items:center;
    gap:.4rem;
    padding:.28rem .75rem;
    border-radius:999px;
    background:rgba(212,98,42,.12);
    color:var(--orange);
    font-size:13px;
    font-weight:600;
    letter-spacing:.02em;
  }
  .tag{
    display:inline-block;
    padding:.2rem .6rem;
    border-radius:8px;
    background:rgba(127,169,155,.16);
    color:#3F6B5C;
    font-size:12.5px;
    font-weight:500;
  }
  .meta-text{font-size:13px;color:var(--muted);}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{
    display:flex;
    align-items:center;
    gap:.45rem;
    font-size:13.5px;
    color:var(--muted);
    margin-bottom:1.35rem;
  }
  .breadcrumb a{color:var(--muted);text-decoration:none;transition:color .2s var(--ease);}
  .breadcrumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px;}
  .breadcrumb span[aria-current]{color:var(--ink);font-weight:500;}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;padding:3rem 0 3.5rem;}
  .hero-bg{
    position:absolute;inset:0;
    background-size:cover;
    background-position:center;
    opacity:.16;
  }
  .hero::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(115deg,rgba(247,244,238,.97) 0%,rgba(247,244,238,.82) 55%,rgba(247,244,238,.62) 100%);
  }
  .hero .container{position:relative;z-index:2;}
  .hero h1{
    font-size:clamp(2.05rem,4.7vw,3.35rem);
    line-height:1.13;
    letter-spacing:-.03em;
    font-weight:700;
    margin:.9rem 0 1rem;
  }
  .hero h1 em{font-style:normal;color:var(--ink);}
  .hero-sub{
    font-size:clamp(1rem,1.5vw,1.12rem);
    color:var(--muted);
    max-width:34rem;
    margin:0 0 1.75rem;
    line-height:1.85;
  }
  .hero-actions{display:flex;gap:.75rem;flex-wrap:wrap;}
  @media (max-width:520px){
    .hero-actions{flex-direction:column;}
    .hero-actions .btn{width:100%;}
  }
  .hero-figure{
    margin:0;
    border-radius:var(--radius-lg);
    overflow:hidden;
    border:1px solid var(--line);
    background:#fff;
    box-shadow:var(--shadow-card);
  }
  .hero-figure img{
    width:100%;
    aspect-ratio:3/2;
    object-fit:cover;
    transition:transform .6s var(--ease);
  }
  .hero-figure:hover img{transform:scale(1.03);}
  .hero-figure figcaption{
    padding:.8rem 1.1rem;
    font-size:13.5px;
    color:var(--muted);
    border-top:1px solid var(--line);
    background:#fff;
  }

  /* ---------- 数据条 ---------- */
  .facts-section{padding:0 0 3.5rem;position:relative;z-index:3;margin-top:-1.75rem;}
  .facts-grid{
    display:grid;
    gap:1rem;
    grid-template-columns:repeat(2,minmax(0,1fr));
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:1.5rem;
    box-shadow:var(--shadow-card);
  }
  @media (min-width:900px){ .facts-grid{grid-template-columns:repeat(4,minmax(0,1fr));padding:1.75rem 2rem;} }
  .fact{padding-right:.5rem;}
  .fact + .fact{border-left:0;}
  @media (min-width:640px){ .fact{padding-left:1.25rem;border-left:1px solid var(--line);} .fact:first-child{padding-left:0;border-left:0;} }
  @media (max-width:639px){ .fact:first-child,.fact:nth-child(2){border-bottom:1px solid var(--line);padding-bottom:1rem;} }
  .fact-num{
    display:block;
    font-size:clamp(1.5rem,2.6vw,2rem);
    font-weight:700;
    letter-spacing:-.03em;
    color:var(--ink);
    line-height:1.2;
  }
  .fact-label{display:block;font-size:14px;font-weight:600;margin-top:.15rem;}
  .fact p{margin:.25rem 0 0;font-size:13.5px;color:var(--muted);line-height:1.7;}

  /* ---------- 通用区块 ---------- */
  .section{padding:3.5rem 0;}
  @media (min-width:768px){ .section{padding:4.5rem 0;} }
  @media (min-width:1024px){ .section{padding:5.5rem 0;} }
  .section-head{max-width:44rem;margin-bottom:2.25rem;}
  .section-head h2{
    font-size:clamp(1.55rem,3vw,2.3rem);
    line-height:1.22;
    letter-spacing:-.025em;
    font-weight:700;
    margin:.6rem 0 .75rem;
  }
  .section-head p{margin:0;color:var(--muted);font-size:16px;}

  /* ---------- 侧边目录 ---------- */
  .toc{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:1.4rem 1.35rem;
    box-shadow:var(--shadow-card);
  }
  @media (min-width:1024px){ .toc{position:sticky;top:92px;} }
  .toc-title{
    font-size:13px;
    font-weight:600;
    letter-spacing:.08em;
    color:var(--orange);
    text-transform:uppercase;
    margin:0 0 .85rem;
  }
  .toc ol{list-style:none;margin:0;padding:0;display:grid;gap:.1rem;counter-reset:toc;}
  .toc a{
    display:flex;
    align-items:baseline;
    gap:.6rem;
    padding:.48rem .6rem;
    border-radius:10px;
    color:var(--muted);
    text-decoration:none;
    font-size:15px;
    transition:background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
  }
  .toc a::before{
    counter-increment:toc;
    content:counter(toc,decimal-leading-zero);
    font-size:12px;
    font-weight:700;
    color:var(--sage);
    letter-spacing:-.02em;
  }
  .toc a:hover{background:rgba(18,60,51,.07);color:var(--ink);transform:translateX(2px);}
  .toc-note{
    margin-top:1rem;
    padding-top:1rem;
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--muted);
    line-height:1.7;
  }

  /* ---------- 条目卡 ---------- */
  .entry-card{
    display:flex;
    gap:1.15rem;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:1.45rem 1.5rem;
    box-shadow:var(--shadow-card);
    transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  }
  .entry-card:hover{transform:translateY(-4px);border-color:rgba(18,60,51,.3);box-shadow:var(--shadow-lift);}
  .entry-num{
    flex:0 0 auto;
    width:44px;height:44px;
    border-radius:13px;
    display:grid;place-items:center;
    background:rgba(18,60,51,.07);
    color:var(--ink);
    font-size:14.5px;
    font-weight:700;
    letter-spacing:-.02em;
    transition:background-color .3s var(--ease),color .3s var(--ease);
  }
  .entry-card:hover .entry-num{background:var(--ink);color:#F7F4EE;}
  .entry-body{min-width:0;flex:1 1 auto;}
  .entry-body h3{
    font-size:1.16rem;
    font-weight:600;
    letter-spacing:-.02em;
    line-height:1.45;
    margin:0 0 .45rem;
    transition:color .25s var(--ease);
  }
  .entry-card:hover .entry-body h3{color:var(--ink);}
  .entry-body p{margin:0;color:var(--muted);font-size:15.5px;line-height:1.8;}
  .entry-meta{
    display:flex;
    align-items:center;
    gap:.7rem;
    flex-wrap:wrap;
    margin-top:.9rem;
    padding-top:.85rem;
    border-top:1px dashed var(--line);
  }
  .entry-arrow{
    margin-left:auto;
    display:inline-flex;
    align-items:center;
    gap:.3rem;
    font-size:13.5px;
    color:var(--ink);
    text-decoration:none;
    font-weight:600;
  }
  .entry-arrow svg{transition:transform .25s var(--ease);}
  .entry-arrow:hover svg{transform:translateX(3px);}
  .entry-card--media{flex-direction:column;padding:0;overflow:hidden;}
  .entry-card--media .entry-media{width:100%;}
  .entry-card--media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .6s var(--ease);}
  .entry-card--media:hover img{transform:scale(1.03);}
  .entry-card--media .entry-inner{padding:1.35rem 1.5rem 1.5rem;display:flex;gap:1.15rem;}

  /* ---------- 对比卡 ---------- */
  .compare-grid{display:grid;gap:1.5rem;grid-template-columns:1fr;}
  @media (min-width:900px){ .compare-grid{grid-template-columns:1fr 1fr;gap:1.75rem;} }
  .compare-card{
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:1.75rem;
    background:#fff;
    box-shadow:var(--shadow-card);
  }
  .compare-card.is-dark{
    background:var(--ink);
    border-color:var(--ink);
    color:#F0EDE6;
  }
  .compare-card h3{
    font-size:1.25rem;
    font-weight:600;
    letter-spacing:-.02em;
    margin:.7rem 0 .35rem;
  }
  .compare-card .compare-lead{margin:0 0 1.15rem;font-size:15px;color:var(--muted);}
  .compare-card.is-dark .compare-lead{color:rgba(240,237,230,.75);}
  .compare-list{list-style:none;margin:0;padding:0;display:grid;gap:.7rem;}
  .compare-list li{
    position:relative;
    padding-left:1.4rem;
    font-size:15.5px;
    line-height:1.75;
  }
  .compare-list li::before{
    content:"";
    position:absolute;
    left:0;top:.62em;
    width:7px;height:7px;
    border-radius:2px;
    background:var(--orange);
  }
  .compare-card.is-dark .compare-list li{color:rgba(240,237,230,.88);}
  .compare-card.is-dark .compare-list li::before{background:var(--sage);}
  .compare-badge{
    display:inline-block;
    padding:.22rem .65rem;
    border-radius:999px;
    font-size:12.5px;
    font-weight:600;
    background:rgba(127,169,155,.2);
    color:#3F6B5C;
  }
  .compare-card.is-dark .compare-badge{background:rgba(212,98,42,.22);color:#F0B08A;}

  /* ---------- FAQ ---------- */
  .faq-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:.5rem 1.6rem;box-shadow:var(--shadow-card);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:last-child{border-bottom:0;}
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:1rem;
    padding:1.25rem 0;
    background:none;
    border:0;
    text-align:left;
    font-size:1.03rem;
    font-weight:600;
    letter-spacing:-.01em;
    color:var(--text);
    cursor:pointer;
    transition:color .25s var(--ease);
  }
  .faq-q:hover{color:var(--ink);}
  .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(--ink);
    transition:transform .3s var(--ease),background-color .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
  }
  .faq-item.open .faq-icon{background:var(--ink);border-color:var(--ink);color:#F7F4EE;transform:rotate(45deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .38s var(--ease);}
  .faq-a p{margin:0 0 1.3rem;color:var(--muted);font-size:15.8px;line-height:1.85;}

  /* ---------- 深色 CTA ---------- */
  .cta-band{
    background:var(--ink-deep);
    border-radius:24px;
    padding:2.25rem 1.75rem;
    color:#F7F4EE;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:1.75rem;
    flex-wrap:wrap;
  }
  @media (min-width:768px){ .cta-band{padding:2.75rem 2.75rem;} }
  .cta-band h2{
    font-size:clamp(1.4rem,2.4vw,1.9rem);
    line-height:1.28;
    letter-spacing:-.025em;
    font-weight:700;
    margin:0 0 .5rem;
    color:#F7F4EE;
  }
  .cta-band p{margin:0;color:rgba(240,237,230,.72);font-size:15.5px;max-width:34rem;}
  .cta-actions{display:flex;gap:.7rem;flex-wrap:wrap;}
  @media (max-width:520px){ .cta-actions{width:100%;flex-direction:column;} .cta-actions .btn{width:100%;} }
  .btn-paper{background:#F7F4EE;color:var(--ink-deep);}
  .btn-paper:hover{background:#fff;transform:translateY(-1px);}
  .btn-outline-paper{background:transparent;color:#F7F4EE;border-color:rgba(247,244,238,.4);}
  .btn-outline-paper:hover{background:rgba(247,244,238,.1);border-color:#F7F4EE;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;
    z-index:1;
    background:var(--ink-deep);
    color:#E7E3DA;
    padding:3.75rem 0 2rem;
    margin-top:3.5rem;
  }
  .footer-grid{display:grid;gap:2.25rem;grid-template-columns:1fr;}
  @media (min-width:768px){ .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.5fr;} }
  @media (min-width:1024px){ .footer-grid{gap:3rem;} }
  .footer-logo{display:flex;align-items:center;gap:.6rem;margin-bottom:1rem;font-weight:700;font-size:18px;letter-spacing:-.02em;color:#F7F4EE;}
  .site-footer .logo-mark{background:#F7F4EE;color:var(--ink-deep);}
  .site-footer h4{font-size:15px;font-weight:600;color:#F7F4EE;margin:0 0 1rem;letter-spacing:.02em;}
  .site-footer p{color:rgba(231,227,218,.72);font-size:15px;line-height:1.8;margin:0 0 .8rem;}
  .footer-note{font-size:13px;color:rgba(231,227,218,.5);}
  .footer-links{list-style:none;margin:0;padding:0;display:grid;gap:.55rem;}
  .footer-links a{
    color:rgba(231,227,218,.72);
    text-decoration:none;
    font-size:15px;
    transition:color .2s var(--ease),padding-left .2s var(--ease);
  }
  .footer-links a:hover{color:#F7F4EE;padding-left:3px;}
  .sub-form{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:.65rem;}
  .sub-form input{
    flex:1 1 150px;
    min-width:0;
    padding:.66rem .9rem;
    border-radius:12px;
    border:1px solid rgba(221,214,200,.25);
    background:rgba(255,255,255,.06);
    color:#F7F4EE;
    font-size:15px;
    outline:none;
    transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .sub-form input::placeholder{color:rgba(231,227,218,.45);}
  .sub-form input:focus{border-color:var(--sage);box-shadow:0 0 0 3px rgba(127,169,155,.22);}
  .sub-form button{
    padding:.66rem 1.25rem;
    border-radius:12px;
    border:0;
    background:var(--orange);
    color:#fff;
    font-weight:600;
    font-size:15px;
    cursor:pointer;
    transition:background-color .22s var(--ease),transform .22s var(--ease);
  }
  .sub-form button:hover{background:var(--orange-2);transform:translateY(-1px);}
  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:1rem;
    flex-wrap:wrap;
    margin-top:3rem;
    padding-top:1.5rem;
    border-top:1px solid rgba(221,214,200,.16);
    font-size:14px;
    color:rgba(231,227,218,.6);
  }
  .to-top{display:inline-flex;align-items:center;gap:.35rem;color:rgba(231,227,218,.78);text-decoration:none;transition:color .2s var(--ease);}
  .to-top:hover{color:#F7F4EE;}

  /* ---------- 移动抽屉 ---------- */
  .mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;}
  .mobile-drawer.open{display:block;}
  .drawer-nav{display:grid;gap:.25rem;}
  .drawer-nav a{
    padding:.7rem .85rem;
    border-radius:12px;
    text-decoration:none;
    color:var(--muted);
    font-size:16px;
    font-weight:500;
    transition:background-color .2s var(--ease),color .2s var(--ease);
  }
  .drawer-nav a:hover{background:rgba(18,60,51,.07);color:var(--ink);}
  .drawer-nav a.active{background:rgba(18,60,51,.11);color:var(--ink);font-weight:600;}
  .drawer-search{
    display:flex;align-items:center;gap:.5rem;
    height:44px;padding:0 .9rem;
    border:1px solid var(--line);border-radius:999px;background:var(--paper);
    margin-bottom:1rem;
  }
  .drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:15px;color:var(--text);}

  /* ---------- 动效与提示 ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
  .reveal.is-visible{opacity:1;transform:none;}
  .toast{
    position:fixed;
    left:50%;
    bottom:2rem;
    transform:translate(-50%,16px);
    background:var(--ink-deep);
    color:#F7F4EE;
    font-size:14.5px;
    padding:.7rem 1.2rem;
    border-radius:999px;
    box-shadow:0 18px 36px -18px rgba(11,21,18,.7);
    opacity:0;
    pointer-events:none;
    transition:opacity .3s var(--ease),transform .3s var(--ease);
    z-index:80;
  }
  .toast.show{opacity:1;transform:translate(-50%,0);}
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    .reveal{opacity:1;transform:none;transition:none;}
    *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  }

/* roulang page: category4 */
:root{
    --ink:#123C33;
    --ink-2:#1B5548;
    --accent:#D4622A;
    --sage:#7FA99B;
    --paper:#F7F4EE;
    --dark:#0B1512;
    --text:#15201C;
    --muted:#5F6B66;
    --line:#DDD6C8;
    --success:#2F7D5B;
    --warn:#B7791F;
    --danger:#B42318;
    --radius-card:20px;
    --radius-sm:12px;
    --shadow-card:0 1px 2px rgba(15,30,25,.04), 0 20px 40px -30px rgba(15,30,25,.35);
    --shadow-hover:0 2px 4px rgba(15,30,25,.06), 0 28px 50px -28px rgba(15,30,25,.42);
    --ease:cubic-bezier(.2,.7,.2,1);
  }
  *,*::before,*::after{ box-sizing:border-box; }
  html{ scroll-behavior:smooth; }
  body{
    margin:0;
    background-color:var(--paper);
    color:var(--text);
    font-family:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
    font-size:17px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    background-image:radial-gradient(rgba(18,60,51,.035) 1px, transparent 1px);
    background-size:22px 22px;
  }
  img{ display:block; max-width:100%; }
  h1,h2,h3,h4{ margin:0; color:var(--ink); letter-spacing:-.025em; font-weight:700; }
  p{ margin:0; }

  /* ---------- 容器 ---------- */
  .container{
    width:100%;
    max-width:1280px;
    margin:0 auto;
    padding-left:1.25rem;
    padding-right:1.25rem;
  }
  @media (min-width:640px){ .container{ padding-left:1.5rem; padding-right:1.5rem; } }
  @media (min-width:1024px){ .container{ padding-left:2rem; padding-right:2rem; } }

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:rgba(247,244,238,.88);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{
    display:flex;
    align-items:center;
    gap:1.25rem;
    min-height:72px;
  }
  .logo{
    display:flex;
    align-items:center;
    gap:.6rem;
    text-decoration:none;
    flex-shrink:0;
  }
  .logo-mark{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:34px;
    height:34px;
    border-radius:10px;
    background:var(--ink);
    color:var(--paper);
    font-weight:700;
    font-size:16px;
    letter-spacing:0;
  }
  .logo-text{
    font-size:17px;
    font-weight:700;
    color:var(--ink);
    letter-spacing:-.02em;
  }
  .nav-links{
    display:flex;
    align-items:center;
    gap:.15rem;
    margin-left:.5rem;
  }
  .nav-links a{
    position:relative;
    display:inline-block;
    padding:.5rem .78rem;
    border-radius:10px;
    font-size:15px;
    color:var(--muted);
    text-decoration:none;
    transition:color .22s var(--ease), background-color .22s var(--ease);
    white-space:nowrap;
  }
  .nav-links a:hover{ color:var(--ink); background:rgba(18,60,51,.07); }
  .nav-links a.active{ color:var(--ink); background:rgba(18,60,51,.09); font-weight:600; }
  .nav-links a.active::after{
    content:"";
    position:absolute;
    left:50%;
    bottom:2px;
    transform:translateX(-50%);
    width:16px;
    height:2px;
    border-radius:2px;
    background:var(--accent);
  }
  .nav-tools{
    display:flex;
    align-items:center;
    gap:.6rem;
    margin-left:auto;
  }
  .search-box{
    display:flex;
    align-items:center;
    gap:.5rem;
    width:230px;
    padding:.5rem .85rem;
    background:#fff;
    border:1px solid var(--line);
    border-radius:999px;
    transition:border-color .22s var(--ease), box-shadow .22s var(--ease);
  }
  .search-box:focus-within{
    border-color:var(--ink);
    box-shadow:0 0 0 3px rgba(18,60,51,.12);
  }
  .search-box input{
    flex:1;
    min-width:0;
    border:0;
    outline:none;
    background:transparent;
    font-family:inherit;
    font-size:14px;
    color:var(--text);
  }
  .search-box input::placeholder{ color:#98A29C; }
  .kbd{
    font-size:11px;
    color:var(--muted);
    border:1px solid var(--line);
    border-radius:6px;
    padding:1px 5px;
    background:var(--paper);
    letter-spacing:.02em;
    white-space:nowrap;
  }
  .icon-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:38px;
    height:38px;
    border-radius:999px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--muted);
    cursor:pointer;
    transition:all .22s var(--ease);
  }
  .icon-btn:hover{ color:var(--ink); border-color:rgba(18,60,51,.35); transform:translateY(-1px); }
  .icon-btn:focus-visible{ outline:2px solid var(--ink); outline-offset:2px; }

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:.45rem;
    padding:.72rem 1.35rem;
    border-radius:999px;
    font-family:inherit;
    font-size:15px;
    font-weight:600;
    text-decoration:none;
    border:1px solid transparent;
    cursor:pointer;
    transition:all .24s var(--ease);
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--ink);
    color:var(--paper);
  }
  .btn-primary:hover{
    background:var(--ink-2);
    transform:translateY(-1px);
    box-shadow:0 10px 24px -12px rgba(18,60,51,.55);
  }
  .btn-primary:active{ transform:translateY(0); }
  .btn-primary:focus-visible{ outline:2px solid var(--ink); outline-offset:3px; }
  .btn-ghost{
    background:transparent;
    color:var(--ink);
    border-color:rgba(18,60,51,.45);
  }
  .btn-ghost:hover{
    background:rgba(18,60,51,.08);
    border-color:var(--ink);
    transform:translateY(-1px);
  }
  .btn-ghost:focus-visible{ outline:2px solid var(--ink); outline-offset:3px; }
  .btn-light{
    background:var(--paper);
    color:var(--ink);
  }
  .btn-light:hover{ background:#fff; transform:translateY(-1px); box-shadow:0 12px 26px -14px rgba(0,0,0,.5); }
  .btn-outline-light{
    background:transparent;
    color:var(--paper);
    border-color:rgba(247,244,238,.5);
  }
  .btn-outline-light:hover{ background:rgba(247,244,238,.12); border-color:var(--paper); transform:translateY(-1px); }

  .menu-toggle{
    display:none;
    width:40px;
    height:40px;
    border-radius:12px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--ink);
    cursor:pointer;
    align-items:center;
    justify-content:center;
  }
  .mobile-drawer{
    display:none;
    border-top:1px solid var(--line);
    background:var(--paper);
    padding:1rem 0 1.4rem;
  }
  .mobile-drawer.open{ display:block; }
  .mobile-drawer .m-link{
    display:block;
    padding:.7rem .25rem;
    border-bottom:1px solid var(--line);
    color:var(--muted);
    text-decoration:none;
    font-size:16px;
  }
  .mobile-drawer .m-link.active{ color:var(--ink); font-weight:600; }
  .mobile-drawer .m-link:hover{ color:var(--ink); }

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    overflow:hidden;
    background-color:var(--ink);
    background-image:linear-gradient(115deg, rgba(11,21,18,.94) 0%, rgba(18,60,51,.88) 46%, rgba(18,60,51,.62) 100%),
      url("/assets/images/backpic/back-2.png");
    background-size:cover;
    background-position:center;
    color:var(--paper);
    padding:4.5rem 0 4rem;
  }
  .hero-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:3rem;
    align-items:center;
  }
  @media (min-width:1024px){
    .hero-grid{ grid-template-columns:1.05fr .95fr; gap:4rem; }
    .hero{ padding:5.5rem 0 5rem; }
  }
  .hero-badge{
    display:inline-flex;
    align-items:center;
    gap:.5rem;
    padding:.35rem .85rem;
    border-radius:999px;
    background:rgba(212,98,42,.18);
    border:1px solid rgba(212,98,42,.5);
    color:#F3C9B4;
    font-size:13px;
    letter-spacing:.06em;
  }
  .hero h1{
    margin-top:1.35rem;
    font-size:clamp(2.15rem, 5vw, 3.4rem);
    line-height:1.14;
    color:var(--paper);
    letter-spacing:-.03em;
  }
  .hero h1 .hl{ color:#E8B591; }
  .hero-sub{
    margin-top:1.25rem;
    font-size:17px;
    line-height:1.85;
    color:rgba(247,244,238,.82);
    max-width:36rem;
  }
  .hero-tags{
    display:flex;
    flex-wrap:wrap;
    gap:.5rem;
    margin-top:1.6rem;
  }
  .tag{
    display:inline-block;
    padding:.3rem .8rem;
    border-radius:999px;
    font-size:13px;
    border:1px solid rgba(247,244,238,.28);
    color:rgba(247,244,238,.9);
    background:rgba(247,244,238,.06);
  }
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:.75rem;
    margin-top:2rem;
  }
  .hero-card{
    position:relative;
    border-radius:24px;
    overflow:hidden;
    border:1px solid rgba(247,244,238,.16);
    background:rgba(11,21,18,.5);
    box-shadow:0 40px 70px -40px rgba(0,0,0,.8);
  }
  .hero-card img{
    width:100%;
    aspect-ratio:16 / 9;
    object-fit:cover;
  }
  .hero-card-body{
    position:absolute;
    inset:auto 0 0 0;
    padding:1.1rem 1.25rem;
    background:linear-gradient(to top, rgba(11,21,18,.94), rgba(11,21,18,.55) 60%, transparent);
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:1rem;
  }
  .hero-card-body h3{
    color:var(--paper);
    font-size:16px;
    letter-spacing:-.01em;
  }
  .hero-card-body p{
    color:rgba(247,244,238,.72);
    font-size:13px;
    margin-top:.2rem;
  }
  .hero-card-num{
    flex-shrink:0;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:44px;
    height:44px;
    border-radius:14px;
    background:var(--accent);
    color:#fff;
    font-weight:700;
    font-size:16px;
  }
  .stat-row{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:.9rem;
    margin-top:2.4rem;
    max-width:34rem;
  }
  .stat-item{
    padding:.9rem 1rem;
    border-radius:14px;
    background:rgba(247,244,238,.07);
    border:1px solid rgba(247,244,238,.14);
  }
  .stat-item b{
    display:block;
    font-size:22px;
    color:#fff;
    letter-spacing:-.02em;
  }
  .stat-item span{
    display:block;
    margin-top:.15rem;
    font-size:12.5px;
    color:rgba(247,244,238,.65);
  }

  /* ---------- 板块 ---------- */
  .section{ padding:4rem 0; }
  @media (min-width:768px){ .section{ padding:5rem 0; } }
  @media (min-width:1024px){ .section{ padding:6.5rem 0; } }
  .section-alt{ background:#FFFFFF; border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
  .section-head{ max-width:44rem; margin-bottom:2.75rem; }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:.5rem;
    font-size:13px;
    font-weight:600;
    letter-spacing:.14em;
    color:var(--accent);
    text-transform:uppercase;
  }
  .eyebrow::before{
    content:"";
    width:22px;
    height:2px;
    border-radius:2px;
    background:var(--accent);
  }
  .section-head h2{
    margin-top:.85rem;
    font-size:clamp(1.65rem, 3vw, 2.4rem);
    line-height:1.22;
  }
  .section-head p{
    margin-top:.9rem;
    color:var(--muted);
    font-size:16.5px;
  }

  /* ---------- 自检清单卡 ---------- */
  .check-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:1.25rem;
  }
  @media (min-width:640px){ .check-grid{ grid-template-columns:repeat(2,1fr); } }
  @media (min-width:1024px){ .check-grid{ grid-template-columns:repeat(4,1fr); gap:1.5rem; } }
  .check-card{
    position:relative;
    padding:1.7rem 1.5rem 1.6rem;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  }
  .check-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-hover);
    border-color:rgba(18,60,51,.3);
  }
  .check-num{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:38px;
    height:38px;
    border-radius:12px;
    background:rgba(18,60,51,.08);
    color:var(--ink);
    font-weight:700;
    font-size:15px;
  }
  .check-card h3{
    margin-top:1rem;
    font-size:18px;
  }
  .check-card p{
    margin-top:.6rem;
    color:var(--muted);
    font-size:15px;
    line-height:1.8;
  }
  .check-card .mini{
    display:inline-block;
    margin-top:1rem;
    font-size:13px;
    color:var(--sage);
    font-weight:600;
  }

  /* ---------- 对比卡 ---------- */
  .compare-list{
    display:flex;
    flex-direction:column;
    gap:1rem;
  }
  .compare-row{
    display:grid;
    grid-template-columns:1fr;
    gap:1rem;
  }
  @media (min-width:900px){
    .compare-row{ grid-template-columns:1fr 1fr; gap:1.25rem; }
  }
  .compare-cell{
    padding:1.3rem 1.4rem;
    border-radius:18px;
    border:1px solid var(--line);
    background:#fff;
    box-shadow:var(--shadow-card);
    display:flex;
    gap:.9rem;
    align-items:flex-start;
    transition:transform .28s var(--ease), box-shadow .28s var(--ease);
  }
  .compare-cell:hover{ transform:translateY(-3px); box-shadow:var(--shadow-hover); }
  .compare-cell.ok{ border-left:4px solid var(--success); }
  .compare-cell.warn{ border-left:4px solid var(--danger); }
  .compare-mark{
    flex-shrink:0;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:28px;
    height:28px;
    border-radius:9px;
    font-size:14px;
    font-weight:700;
  }
  .compare-cell.ok .compare-mark{ background:rgba(47,125,91,.12); color:var(--success); }
  .compare-cell.warn .compare-mark{ background:rgba(180,35,24,.1); color:var(--danger); }
  .compare-cell h3{
    font-size:16.5px;
    line-height:1.5;
  }
  .compare-cell p{
    margin-top:.4rem;
    font-size:14.5px;
    color:var(--muted);
    line-height:1.75;
  }
  .compare-legend{
    display:flex;
    flex-wrap:wrap;
    gap:1.25rem;
    margin-bottom:2rem;
    font-size:14px;
    color:var(--muted);
  }
  .legend-dot{
    display:inline-block;
    width:9px;
    height:9px;
    border-radius:50%;
    margin-right:.45rem;
    vertical-align:middle;
  }

  /* ---------- 资源库 ---------- */
  .res-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:1.5rem;
  }
  @media (min-width:768px){ .res-grid{ grid-template-columns:repeat(3,1fr); } }
  .res-card{
    display:flex;
    flex-direction:column;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    box-shadow:var(--shadow-card);
    transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  }
  .res-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-hover);
    border-color:rgba(18,60,51,.3);
  }
  .res-thumb{
    position:relative;
    overflow:hidden;
    background:#EAE5DA;
  }
  .res-thumb img{
    width:100%;
    aspect-ratio:3 / 2;
    object-fit:cover;
    transition:transform .5s var(--ease);
  }
  .res-card:hover .res-thumb img{ transform:scale(1.03); }
  .res-badge{
    position:absolute;
    top:.85rem;
    left:.85rem;
    padding:.28rem .7rem;
    border-radius:999px;
    background:rgba(18,60,51,.88);
    color:var(--paper);
    font-size:12px;
    letter-spacing:.04em;
  }
  .res-body{
    padding:1.4rem 1.4rem 1.5rem;
    display:flex;
    flex-direction:column;
    flex:1;
  }
  .res-body h3{
    font-size:18px;
    line-height:1.45;
  }
  .res-body p{
    margin-top:.6rem;
    font-size:15px;
    color:var(--muted);
    line-height:1.8;
    flex:1;
  }
  .res-meta{
    display:flex;
    flex-wrap:wrap;
    gap:.9rem;
    margin-top:1.1rem;
    font-size:13px;
    color:#8A948F;
  }
  .res-link{
    display:inline-flex;
    align-items:center;
    gap:.4rem;
    margin-top:1.1rem;
    font-size:15px;
    font-weight:600;
    color:var(--ink);
    text-decoration:none;
    border-bottom:1px solid rgba(18,60,51,.3);
    padding-bottom:2px;
    transition:color .22s var(--ease), border-color .22s var(--ease);
    align-self:flex-start;
  }
  .res-link:hover{ color:var(--accent); border-color:var(--accent); }
  .res-link svg{ transition:transform .22s var(--ease); }
  .res-link:hover svg{ transform:translateX(3px); }

  /* ---------- FAQ ---------- */
  .faq-wrap{
    display:grid;
    grid-template-columns:1fr;
    gap:2.5rem;
  }
  @media (min-width:1024px){ .faq-wrap{ grid-template-columns:0.85fr 1.15fr; gap:4rem; align-items:start; } }
  .faq-wrap .section-head{ margin-bottom:0; }
  .faq-list{
    border-top:1px solid var(--line);
  }
  .faq-item{
    border-bottom:1px solid var(--line);
  }
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:1.25rem;
    padding:1.35rem .25rem;
    background:transparent;
    border:0;
    cursor:pointer;
    text-align:left;
    font-family:inherit;
    font-size:17px;
    font-weight:600;
    color:var(--ink);
    letter-spacing:-.01em;
    transition:color .22s var(--ease);
  }
  .faq-q:hover{ color:var(--ink-2); }
  .faq-q:focus-visible{ outline:2px solid var(--ink); outline-offset:2px; border-radius:8px; }
  .faq-icon{
    flex-shrink:0;
    position:relative;
    width:22px;
    height:22px;
    border-radius:50%;
    border:1px solid rgba(18,60,51,.35);
  }
  .faq-icon::before,
  .faq-icon::after{
    content:"";
    position:absolute;
    top:50%;
    left:50%;
    background:var(--ink);
    transform:translate(-50%,-50%);
    transition:transform .28s var(--ease), opacity .28s var(--ease);
  }
  .faq-icon::before{ width:10px; height:1.6px; }
  .faq-icon::after{ width:1.6px; height:10px; }
  .faq-item.open .faq-icon::after{ transform:translate(-50%,-50%) scaleY(0); opacity:0; }
  .faq-item.open .faq-icon{ background:var(--ink); }
  .faq-item.open .faq-icon::before{ background:var(--paper); }
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .38s var(--ease);
  }
  .faq-a p{
    padding:0 2.5rem 1.5rem .25rem;
    color:var(--muted);
    font-size:15.5px;
    line-height:1.85;
  }

  /* ---------- CTA 条带 ---------- */
  .cta-band{
    background:var(--dark);
    color:var(--paper);
    padding:3.5rem 0;
  }
  @media (min-width:768px){ .cta-band{ padding:4.5rem 0; } }
  .cta-inner{
    display:grid;
    grid-template-columns:1fr;
    gap:2rem;
    align-items:center;
  }
  @media (min-width:1024px){ .cta-inner{ grid-template-columns:1.3fr .7fr; gap:3rem; } }
  .cta-band h2{
    color:var(--paper);
    font-size:clamp(1.5rem, 2.8vw, 2.15rem);
    line-height:1.25;
  }
  .cta-band p{
    margin-top:.85rem;
    color:rgba(247,244,238,.72);
    font-size:16px;
    max-width:36rem;
  }
  .cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:.75rem;
  }
  #copyToast{
    position:fixed;
    left:50%;
    bottom:2.2rem;
    transform:translate(-50%, 16px);
    opacity:0;
    pointer-events:none;
    padding:.65rem 1.15rem;
    border-radius:999px;
    background:var(--ink);
    color:var(--paper);
    font-size:14px;
    box-shadow:0 18px 36px -18px rgba(0,0,0,.6);
    transition:opacity .3s var(--ease), transform .3s var(--ease);
    z-index:80;
  }
  #copyToast.show{ opacity:1; transform:translate(-50%, 0); }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--dark);
    color:rgba(247,244,238,.78);
    padding:4rem 0 2rem;
    border-top:1px solid rgba(247,244,238,.08);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:2.5rem;
  }
  @media (min-width:768px){ .footer-grid{ grid-template-columns:repeat(2,1fr); } }
  @media (min-width:1024px){ .footer-grid{ grid-template-columns:1.5fr 1fr 1fr 1.3fr; gap:2rem; } }
  .footer-logo{
    display:flex;
    align-items:center;
    gap:.6rem;
    margin-bottom:1rem;
  }
  .footer-logo .logo-mark{ background:var(--paper); color:var(--ink); }
  .footer-logo .logo-text{ color:var(--paper); }
  .site-footer p{
    font-size:14.5px;
    line-height:1.85;
    color:rgba(247,244,238,.66);
    max-width:26rem;
  }
  .footer-note{
    margin-top:.85rem;
    font-size:13px;
    color:rgba(247,244,238,.48);
  }
  .site-footer h4{
    color:var(--paper);
    font-size:15px;
    letter-spacing:.02em;
    margin-bottom:1.05rem;
  }
  .footer-links{
    list-style:none;
    padding:0;
    margin:0;
    display:flex;
    flex-direction:column;
    gap:.65rem;
  }
  .footer-links a{
    color:rgba(247,244,238,.66);
    text-decoration:none;
    font-size:14.5px;
    transition:color .22s var(--ease);
  }
  .footer-links a:hover{ color:#fff; }
  .sub-form{
    display:flex;
    gap:.5rem;
    margin-top:.5rem;
  }
  .sub-form input{
    flex:1;
    min-width:0;
    padding:.68rem .9rem;
    border-radius:12px;
    border:1px solid rgba(247,244,238,.22);
    background:rgba(247,244,238,.06);
    color:var(--paper);
    font-family:inherit;
    font-size:14px;
    outline:none;
    transition:border-color .22s var(--ease), box-shadow .22s var(--ease);
  }
  .sub-form input::placeholder{ color:rgba(247,244,238,.42); }
  .sub-form input:focus{
    border-color:var(--sage);
    box-shadow:0 0 0 3px rgba(127,169,155,.24);
  }
  .sub-form button{
    padding:.68rem 1.1rem;
    border-radius:12px;
    border:0;
    background:var(--accent);
    color:#fff;
    font-family:inherit;
    font-size:14px;
    font-weight:600;
    cursor:pointer;
    transition:background-color .22s var(--ease), transform .22s var(--ease);
  }
  .sub-form button:hover{ background:#BE5522; transform:translateY(-1px); }
  .footer-bottom{
    margin-top:3rem;
    padding-top:1.5rem;
    border-top:1px solid rgba(247,244,238,.12);
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:1rem;
    font-size:13.5px;
    color:rgba(247,244,238,.5);
  }
  .to-top{
    display:inline-flex;
    align-items:center;
    gap:.4rem;
    color:rgba(247,244,238,.72);
    text-decoration:none;
    transition:color .22s var(--ease);
  }
  .to-top:hover{ color:#fff; }

  @media (max-width:1023px){
    .nav-links{ display:none; }
    .search-box{ display:none; }
    .menu-toggle{ display:inline-flex; }
    .nav-inner{ gap:.75rem; }
  }
  @media (max-width:520px){
    body{ font-size:16px; }
    .hero-actions .btn{ width:100%; }
    .cta-actions .btn{ width:100%; }
    .stat-row{ grid-template-columns:1fr; }
    .logo-text{ font-size:15.5px; }
  }
  @media (prefers-reduced-motion: reduce){
    *{ animation:none !important; transition:none !important; }
    html{ scroll-behavior:auto; }
  }