/* roulang page: index */
:root{
  --ink:#0F3A32;
  --ink-2:#1B4E42;
  --lime:#CDEB4F;
  --warm:#FF7A45;
  --paper:#FBFBF7;
  --card:#FFFFFF;
  --line:#E5E8E1;
  --text:#17211E;
  --muted:#5B6661;
  --soft:#F2F4EF;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(15,58,50,.07);
  --shadow-hover:0 14px 30px rgba(15,58,50,.12);
  --sidebar-w:260px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--paper);
  color:var(--text);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,figure,ul,ol,blockquote{margin:0}
ul,ol{list-style:none;padding:0}
a{color:var(--ink);text-decoration:none;background:transparent}
a:hover{color:var(--ink-2)}
img{max-width:100%;display:block;border:0}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea,select{font:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
::selection{background:var(--lime);color:var(--ink)}
h1{font-size:clamp(30px,4.2vw,46px);font-weight:700;line-height:1.25;letter-spacing:-.5px}
h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.3px}
h3{font-size:20px;font-weight:600;line-height:1.45}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* 布局骨架 */
.app-shell{min-height:100vh}
.sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
  background:var(--paper);border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:80;
}
.logo-block{
  height:72px;background:var(--ink);color:#fff;
  display:flex;flex-direction:column;justify-content:center;
  padding:0 20px;text-decoration:none;flex:0 0 auto;
}
.logo-block:hover{color:#fff;background:var(--ink-2)}
.logo-main{font-size:16px;font-weight:700;line-height:1.3;letter-spacing:-.2px}
.logo-sub{font-size:11px;line-height:1.4;letter-spacing:3px;color:rgba(255,255,255,.62);margin-top:2px}
.side-nav{padding:20px 14px;display:flex;flex-direction:column;gap:6px;flex:1 1 auto;overflow-y:auto}
.nav-label{font-size:11px;letter-spacing:2px;color:var(--muted);padding:0 10px 8px}
.nav-item{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;
  border-radius:10px;font-size:15px;color:var(--text);
  border-left:3px solid transparent;transition:background .16s ease,color .16s ease;
}
.nav-item svg{width:16px;height:16px;flex:0 0 16px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.nav-item:hover{background:#F1F3EE;color:var(--ink)}
.nav-item.active{background:rgba(205,235,79,.14);border-left-color:var(--lime);font-weight:700;color:var(--ink)}
.side-foot{padding:16px;border-top:1px solid var(--line);flex:0 0 auto}
.side-foot .btn{width:100%;justify-content:center}
.side-note{font-size:12px;line-height:1.6;color:var(--muted);margin-top:10px;text-align:center}

.site-main{margin-left:var(--sidebar-w);padding-bottom:96px}
.container{max-width:1200px;margin:0 auto;padding:0 48px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-head p{color:var(--muted);font-size:15px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:1px;
  color:var(--ink-2);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:4px;height:4px;background:var(--lime);border-radius:1px}
.lead{font-size:16px;color:var(--muted);line-height:1.9}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:10px;font-size:15px;font-weight:600;
  background:var(--ink);color:#fff;border:1px solid var(--ink);
  transition:background .16s ease,transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.btn:hover{background:var(--ink-2);border-color:var(--ink-2);color:#fff;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn--ghost:hover{background:var(--soft);color:var(--ink);border-color:#D6DBD3;transform:translateY(-1px)}
.btn--lime{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn--lime:hover{background:#C3E33C;color:var(--ink);border-color:#C3E33C;box-shadow:0 10px 22px rgba(15,58,50,.18)}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.link-more{font-size:14px;font-weight:600;color:var(--ink);border-bottom:2px solid transparent;transition:border-color .16s ease}
.link-more:hover{border-bottom-color:var(--lime)}

/* Hero */
.hero{position:relative;padding:64px 0 72px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(135deg,rgba(15,58,50,.04),rgba(15,58,50,0) 55%);
  pointer-events:none;
}
.hero-inner{position:relative;display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.hero-copy{flex:1 1 58%;min-width:320px}
.hero-media{flex:1 1 34%;min-width:280px;position:relative}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:999px;border:1px solid rgba(15,58,50,.18);background:#fff;
  font-size:13px;color:var(--ink-2);font-weight:600;margin-bottom:20px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--warm);display:inline-block}
.hero h1{margin-bottom:20px}
.hero h1 .accent{color:var(--ink-2);border-bottom:4px solid var(--lime)}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px}
.stat{display:flex;flex-direction:column;gap:2px}
.stat-num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:22px;font-weight:700;color:var(--ink);letter-spacing:-.5px;line-height:1.2}
.stat-label{font-size:13px;color:var(--muted);line-height:1.5}
.hero-media img{
  width:100%;aspect-ratio:4/3.2;object-fit:cover;
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);
  border-radius:0 0 0 0;
}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(15,58,50,.42),rgba(15,58,50,.06) 70%);
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);
  pointer-events:none;
}
.float-badge{
  position:absolute;background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 14px;font-size:12px;font-weight:600;color:var(--ink);
  box-shadow:0 10px 24px rgba(15,58,50,.14);z-index:2;white-space:nowrap;
}
.float-badge.b1{top:16px;left:-14px}
.float-badge.b2{bottom:18px;right:-10px;border-color:rgba(205,235,79,.9)}

/* 卖点阶梯 */
.value-grid{display:flex;gap:24px;flex-wrap:wrap;align-items:flex-start}
.value-main{
  flex:1 1 46%;min-width:300px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.value-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(15,58,50,.2)}
.value-side{flex:1 1 44%;min-width:280px;display:flex;flex-direction:column;gap:24px}
.value-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 28px;box-shadow:var(--shadow);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.value-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(15,58,50,.2)}
.value-side .value-card:first-child{margin-top:24px}
.vnum{
  font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;
  color:var(--ink);background:rgba(205,235,79,.5);border-radius:6px;
  padding:2px 8px;display:inline-block;margin-bottom:14px;letter-spacing:1px;
}
.value-main h3{font-size:22px;margin-bottom:12px}
.value-card h3{font-size:18px;margin-bottom:8px}
.value-main p,.value-card p{font-size:15px;color:var(--muted);line-height:1.85}
.value-main .link-more{display:inline-block;margin-top:18px}
.vicon{
  width:42px;height:42px;border-radius:12px;background:rgba(15,58,50,.06);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.vicon svg{width:20px;height:20px;stroke:var(--ink);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* 图文场景 */
.scene{display:flex;gap:40px;align-items:center;flex-wrap:wrap;margin-bottom:64px}
.scene:last-child{margin-bottom:0}
.scene-media{flex:1 1 44%;min-width:290px;position:relative}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-sm);box-shadow:var(--shadow)}
.scene-copy{flex:1 1 48%;min-width:290px}
.scene-copy h3{margin-bottom:14px;font-size:22px}
.scene-copy p{font-size:15px;color:var(--muted);line-height:1.9;margin-bottom:18px}
.scene-list{display:flex;gap:22px;flex-wrap:wrap}
.scene-list li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);font-weight:600}
.scene-list li::before{content:"";width:7px;height:7px;background:var(--lime);border-radius:2px;flex:0 0 7px}
.scene.reverse{flex-direction:row-reverse}

/* 资讯列表 */
.news-wrap{display:flex;flex-direction:column;gap:18px}
.chip-row{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  height:26px;padding:0 12px;border-radius:999px;border:1px solid var(--line);
  background:#fff;font-size:13px;color:var(--muted);display:inline-flex;align-items:center;
}
.chip.is-active{background:rgba(205,235,79,.22);border-color:rgba(205,235,79,.9);color:var(--ink);font-weight:600}
.post-card{
  display:flex;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(15,58,50,.2)}
.post-main{flex-direction:row;min-height:220px}
.post-main .post-thumb{flex:0 0 40%;max-width:40%}
.post-main .post-thumb img{width:100%;height:100%;object-fit:cover}
.post-main .post-body{padding:28px 30px;display:flex;flex-direction:column;justify-content:center}
.post-row{padding:18px 22px;align-items:center;gap:20px;flex-direction:row}
.post-row .post-thumb{flex:0 0 118px;max-width:118px;border-radius:10px;overflow:hidden}
.post-row .post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.post-row .post-body{padding:0;flex:1 1 auto;min-width:0}
.post-title{font-size:19px;font-weight:600;line-height:1.55;color:var(--text);margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .16s ease}
.post-card:hover .post-title{color:var(--ink);text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:2px;text-underline-offset:4px}
.post-row .post-title{font-size:16px;margin-bottom:4px;-webkit-line-clamp:1}
.post-excerpt{font-size:15px;color:var(--muted);line-height:1.8;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-row .post-excerpt{font-size:14px;margin-bottom:6px;-webkit-line-clamp:1}
.post-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.post-meta .time{font-family:var(--mono);font-variant-numeric:tabular-nums}
.post-meta .cat{height:24px;padding:0 10px;border-radius:999px;border:1px solid rgba(15,58,50,.16);color:var(--ink-2);display:inline-flex;align-items:center;font-size:12px}
.post-meta .read{color:var(--ink);font-weight:600}
.empty-state{
  min-height:140px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  background:var(--card);border:1px dashed var(--line);border-radius:var(--radius);color:var(--muted);font-size:15px;
}
.empty-state svg{width:26px;height:26px;stroke:var(--muted);fill:none;stroke-width:1.6;stroke-linecap:round}

/* 社会认同 */
.trust{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid{display:flex;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.trust-num{
  flex:1 1 28%;min-width:220px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 28px;box-shadow:var(--shadow);
}
.trust-num .n{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:34px;font-weight:700;color:var(--ink);line-height:1.1;letter-spacing:-1px}
.trust-num .l{font-size:14px;color:var(--muted);margin-top:6px}
.quote-grid{display:flex;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.quote{
  flex:1 1 40%;min-width:280px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px;position:relative;box-shadow:var(--shadow);
}
.quote::before{
  content:"“";position:absolute;top:6px;left:20px;font-size:56px;line-height:1;
  font-weight:700;color:rgba(15,58,50,.12);
}
.quote p{font-size:15px;color:var(--text);line-height:1.9;position:relative;z-index:1;padding-top:12px}
.quote .who{display:block;margin-top:12px;font-size:13px;color:var(--muted)}
.badge-row{display:flex;gap:12px;flex-wrap:wrap}
.mini-badge{
  height:30px;padding:0 14px;border-radius:999px;border:1px solid rgba(15,58,50,.16);
  background:rgba(255,255,255,.7);font-size:13px;color:var(--ink-2);display:inline-flex;align-items:center;gap:6px;
}
.mini-badge::before{content:"";width:5px;height:5px;background:var(--lime);border-radius:1px}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;transition:border-color .16s ease}
.faq-item.open{border-left:4px solid var(--lime)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{background:#FCFCF9}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;transition:transform .2s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink);border-radius:1px}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;transition:opacity .2s ease}
.faq-item.open .faq-icon{transform:rotate(90deg)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--muted)}

/* CTA */
.cta-block{background:var(--soft);border:1px solid var(--line);border-radius:20px;padding:56px 40px;text-align:center}
.cta-block h2{margin-bottom:14px}
.cta-block p{color:var(--muted);font-size:15px;max-width:640px;margin:0 auto 28px}
.cta-form{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;max-width:560px;margin:0 auto}
.cta-form input{
  flex:1 1 260px;height:46px;padding:0 16px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--text);font-size:15px;transition:border-color .16s ease,box-shadow .16s ease;
}
.cta-form input::placeholder{color:#9AA39E}
.cta-form input:focus{border-color:var(--ink);box-shadow:0 0 0 2px rgba(205,235,79,.9);outline:none}
.cta-note{font-size:13px;color:var(--muted);margin-top:16px}

/* 页脚 */
.footer{background:var(--ink);color:rgba(255,255,255,.78);padding:64px 0 32px;margin-top:0}
.footer a{color:rgba(255,255,255,.78)}
.footer a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:2px;text-underline-offset:4px}
.footer-brand{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.14);margin-bottom:36px}
.footer-brand .fb-name{font-size:18px;font-weight:700;color:#fff;line-height:1.4}
.footer-brand .fb-sub{font-size:11px;letter-spacing:3px;color:rgba(255,255,255,.5);margin-top:4px}
.footer-brand p{font-size:14px;max-width:420px;line-height:1.85;color:rgba(255,255,255,.66)}
.footer-cols{display:flex;gap:32px;flex-wrap:wrap}
.fcol{flex:1 1 180px;min-width:150px}
.fcol h4{font-size:13px;letter-spacing:2px;color:rgba(255,255,255,.55);font-weight:600;margin-bottom:16px}
.fcol ul{display:flex;flex-direction:column;gap:11px}
.fcol a{font-size:15px}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5)}

/* 固定转化条 */
.cta-bar{
  position:fixed;left:var(--sidebar-w);right:0;bottom:0;height:68px;z-index:50;
  background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:0 32px;box-shadow:0 -8px 24px rgba(15,58,50,.18);
}
.cta-bar .bar-text{font-size:15px;color:rgba(255,255,255,.86)}
.cta-bar .bar-text strong{color:#fff;font-weight:700}

/* 移动顶栏与抽屉 */
.mobile-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:90;
  background:#fff;border-bottom:1px solid var(--line);align-items:center;justify-content:space-between;
  padding:0 16px;
}
.mobile-topbar .mt-logo{font-size:15px;font-weight:700;color:var(--ink);letter-spacing:-.2px}
.hamburger{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--line)}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);position:relative;border-radius:2px}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.overlay{position:fixed;inset:0;background:rgba(15,58,50,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:75}

/* 响应式 */
@media screen and (max-width:1200px){
  .container{padding:0 32px}
  .hero-stats{gap:26px}
}
@media screen and (max-width:1024px){
  .mobile-topbar{display:flex}
  .sidebar{transform:translateX(-100%);transition:transform .26s ease;box-shadow:0 0 40px rgba(15,58,50,.2);z-index:95}
  .sidebar.open{transform:translateX(0)}
  .overlay.show{opacity:1;visibility:visible}
  .site-main{margin-left:0;padding-top:56px;padding-bottom:88px}
  .cta-bar{left:0;height:60px;padding:0 16px;padding-bottom:env(safe-area-inset-bottom)}
  .cta-bar .bar-text{font-size:13px}
  .section{padding:64px 0}
  .scene{gap:28px;margin-bottom:48px}
  .value-side .value-card:first-child{margin-top:0}
}
@media screen and (max-width:900px){
  .hero-inner{flex-direction:column;align-items:stretch}
  .hero-copy,.hero-media{flex:1 1 100%;min-width:0}
  .hero-media{order:2}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .float-badge.b1{left:8px;top:10px}
  .float-badge.b2{right:8px;bottom:10px}
  .value-main,.value-side{flex:1 1 100%;min-width:0}
  .value-side{gap:18px}
  .scene,.scene.reverse{flex-direction:column;align-items:stretch}
  .scene-media,.scene-copy{flex:1 1 100%;min-width:0}
  .post-main{flex-direction:column}
  .post-main .post-thumb{flex:0 0 auto;max-width:100%}
  .post-main .post-thumb img{aspect-ratio:16/10;height:auto}
  .post-main .post-body{padding:22px}
  .post-row{flex-direction:column;align-items:flex-start;gap:12px;padding:18px}
  .post-row .post-thumb{flex:0 0 auto;max-width:100%;width:100%}
  .post-row .post-thumb img{aspect-ratio:16/10}
  .post-row .post-title{-webkit-line-clamp:2}
  .post-row .post-excerpt{-webkit-line-clamp:2}
  .trust-num,.quote{flex:1 1 100%;min-width:0}
  .footer-cols{gap:24px}
  .fcol{flex:1 1 45%}
}
@media screen and (max-width:640px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  .section--tight{padding:40px 0}
  .hero{padding:36px 0 48px}
  .hero h1{font-size:27px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:18px;padding-top:18px}
  .stat-num{font-size:19px}
  .cta-block{padding:36px 20px;border-radius:16px}
  .cta-form input{flex:1 1 100%}
  .cta-form .btn{width:100%}
  .sec-head{margin-bottom:22px}
  .footer{padding:48px 0 96px}
  .footer-bottom{font-size:12px}
  .fcol{flex:1 1 100%}
  .cta-bar .bar-text{display:none}
  .cta-bar{justify-content:flex-end}
  .cta-bar .btn{width:100%}
  .value-main{padding:24px}
  .value-card{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --ink:#0F3A32;
  --ink-2:#1B4E42;
  --lime:#CDEB4F;
  --warm:#FF7A45;
  --paper:#FBFBF7;
  --card:#FFFFFF;
  --line:#E5E8E1;
  --text:#17211E;
  --muted:#5B6661;
  --soft:#F1F3EE;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(15,58,50,.07);
  --shadow-hover:0 14px 32px rgba(15,58,50,.12);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.25em;}
a{color:var(--ink);text-decoration:none;}
a:hover{text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:2px;text-underline-offset:3px;}
img{max-width:100%;display:block;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
::selection{background:var(--lime);color:var(--ink);}

/* ---------- 布局壳 ---------- */
.app-main{margin-left:260px;min-height:100vh;}
.container{width:100%;max-width:1200px;margin:0 auto;}
.page-wrap{max-width:1200px;margin:0 auto;padding:36px 48px 96px;}

/* ---------- 左侧导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;
  width:260px;height:100vh;
  background:var(--paper);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 22px;
  overflow-y:auto;
  z-index:60;
}
.brand-block{
  height:72px;
  margin:0 -16px 22px;
  background:var(--ink);
  color:#fff;
  display:flex;flex-direction:column;justify-content:center;
  padding:0 20px;
  position:relative;
}
.brand-block::after{
  content:"";position:absolute;right:14px;top:24px;
  width:14px;height:14px;background:var(--lime);
  clip-path:polygon(100% 0,100% 100%,0 100%);
  opacity:.9;
}
.brand-main{font-size:20px;font-weight:700;letter-spacing:.5px;line-height:1.2;color:#fff;}
.brand-sub{font-size:12px;letter-spacing:2px;color:rgba(255,255,255,.72);margin-top:3px;text-transform:uppercase;}
.side-nav-links{display:flex;flex-direction:column;gap:6px;}
.nav-label{
  font-size:12px;letter-spacing:1.5px;color:var(--muted);
  padding:0 12px;margin-bottom:8px;
}
.nav-item{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;
  border-radius:10px;
  font-size:15px;color:var(--text);
  position:relative;
  transition:background .16s ease,color .16s ease;
}
.nav-item svg{width:18px;height:18px;flex:none;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.nav-item:hover{background:var(--soft);text-decoration:none;}
.nav-item.active{
  background:rgba(205,235,79,.16);
  font-weight:700;
  box-shadow:inset 3px 0 0 var(--lime);
}
.side-foot{margin-top:auto;padding-top:24px;}
.side-note{font-size:12px;line-height:1.7;color:var(--muted);margin-top:10px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 22px;
  border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;text-align:center;
  transition:background .16s ease,transform .16s ease,box-shadow .16s ease,border-color .16s ease,color .16s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:var(--ink-2);box-shadow:0 10px 22px rgba(15,58,50,.18);}
.btn-lime{background:var(--lime);color:var(--ink);}
.btn-lime:hover{background:#c3e23d;box-shadow:0 10px 22px rgba(205,235,79,.35);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{background:var(--soft);border-color:#d5dccf;}
.btn-block{display:flex;width:100%;}

/* ---------- 移动顶栏 + 抽屉 ---------- */
.topbar{display:none;}
.burger{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;cursor:pointer;padding:0;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,58,50,.45);
  opacity:0;pointer-events:none;transition:opacity .26s ease;z-index:80;
}
body.drawer-open .drawer-mask{opacity:1;pointer-events:auto;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);
  margin-bottom:26px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{color:#c3cbc4;}
.breadcrumb .current{color:var(--text);font-weight:600;}
.pill-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:13px;
  background:rgba(205,235,79,.22);color:var(--ink);font-weight:600;
  border:1px solid rgba(205,235,79,.55);
}

/* ---------- 文章头 ---------- */
.article-head{max-width:820px;margin-bottom:36px;}
.article-head h1{
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.28;letter-spacing:-.5px;font-weight:700;
  margin:16px 0 20px;color:var(--ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--muted);
  padding-bottom:22px;border-bottom:1px solid var(--line);
}
.article-meta .sep{color:#cfd6cf;}
.article-meta time{font-variant-numeric:tabular-nums;}

/* ---------- 正文 ---------- */
.article-body{
  max-width:720px;
  font-size:16px;line-height:1.9;
  color:var(--text);
}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  font-size:clamp(22px,2.2vw,27px);
  line-height:1.35;font-weight:700;color:var(--ink);
  margin:40px 0 16px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;
  background:var(--lime);border-radius:2px;
}
.article-body h3{
  font-size:20px;font-weight:600;line-height:1.45;color:var(--ink);
  margin:30px 0 12px;
}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:1.35em;}
.article-body li{margin-bottom:.42em;}
.article-body li::marker{color:var(--ink-2);}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;
  border-left:4px solid var(--ink);
  background:#F4F6F0;border-radius:0 12px 12px 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;width:100%;height:auto;margin:8px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:8px;text-align:center;}
.article-body a{color:var(--ink);text-decoration:underline;text-decoration-color:rgba(205,235,79,.95);text-decoration-thickness:2px;text-underline-offset:3px;}
.article-body a:hover{color:var(--ink-2);}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:var(--soft);font-weight:600;color:var(--ink);}
.article-body code{
  background:var(--soft);padding:2px 6px;border-radius:6px;
  font-size:14px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  background:#0F3A32;color:#EAF3E6;padding:18px 20px;border-radius:12px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:22px 0;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- 文末标签与返回 ---------- */
.article-foot{
  max-width:720px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  font-size:13px;color:var(--ink-2);
  border:1px solid var(--line);border-radius:999px;background:var(--card);
}
.tag:hover{border-color:rgba(15,58,50,.28);text-decoration:none;background:var(--soft);}
.back-links{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 相关推荐 ---------- */
.related{margin-top:72px;}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:24px;
}
.sec-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;color:var(--ink);line-height:1.3;}
.text-link{font-size:14px;color:var(--ink);font-weight:600;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rec-card{
  display:block;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.rec-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(15,58,50,.2);text-decoration:none;}
.rec-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--soft);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;}
.rec-body{padding:18px 20px 20px;}
.rec-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-meta{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.rec-card:hover .rec-body h3{text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:2px;text-underline-offset:3px;}

/* ---------- CTA ---------- */
.cta-block{
  margin-top:72px;padding:48px 32px;text-align:center;
  background:var(--soft);border-radius:20px;border:1px solid var(--line);
}
.cta-block h2{font-size:clamp(22px,2.4vw,30px);color:var(--ink);font-weight:700;line-height:1.35;}
.cta-block p{max-width:600px;margin:14px auto 26px;color:var(--muted);font-size:15px;line-height:1.85;}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:720px;padding:48px 24px;text-align:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.empty-state svg{width:44px;height:44px;stroke:var(--muted);fill:none;stroke-width:1.5;margin:0 auto 14px;}
.empty-state p{color:var(--muted);margin-bottom:20px;}

/* ---------- 底部固定条 ---------- */
.sticky-bar{
  position:fixed;bottom:0;left:260px;right:0;height:68px;
  background:var(--ink);color:#fff;z-index:55;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 40px;
  box-shadow:0 -10px 30px rgba(15,58,50,.18);
}
.sticky-bar .sb-text{font-size:15px;color:rgba(255,255,255,.88);}
.sticky-bar .sb-text strong{color:var(--lime);font-weight:700;}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--ink);color:#fff;
  padding:64px 48px 108px;
  margin-top:24px;
}
.footer .container{max-width:1200px;margin:0 auto;}
.footer-brand{
  display:grid;grid-template-columns:260px 1fr;gap:24px;
  padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12);
}
.fb-name{font-size:20px;font-weight:700;color:#fff;line-height:1.3;}
.fb-sub{font-size:12px;letter-spacing:2px;color:rgba(255,255,255,.6);margin-top:5px;}
.footer-brand p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.85;margin:0;max-width:660px;}
.footer-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:32px 0;}
.fcol h4{
  font-size:13px;font-weight:600;letter-spacing:1.5px;
  color:rgba(255,255,255,.55);margin:0 0 14px;
}
.fcol ul{list-style:none;margin:0;padding:0;}
.fcol li{margin-bottom:10px;}
.fcol a{color:rgba(255,255,255,.82);font-size:15px;}
.fcol a:hover{color:var(--lime);text-decoration:none;}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;
  border-top:1px solid rgba(255,255,255,.12);padding-top:20px;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .page-wrap{padding:32px 32px 96px;}
  .footer{padding:56px 32px 108px;}
  .sticky-bar{padding:0 32px;}
}
@media (max-width:1024px){
  .app-main{margin-left:0;}
  .topbar{
    display:flex;position:fixed;top:0;left:0;right:0;height:56px;
    background:#fff;border-bottom:1px solid var(--line);
    align-items:center;justify-content:space-between;
    padding:0 16px;z-index:70;
  }
  .topbar-brand{display:flex;flex-direction:column;line-height:1.15;}
  .tb-main{font-size:15px;font-weight:700;color:var(--ink);}
  .tb-sub{font-size:10px;letter-spacing:1.5px;color:var(--muted);}
  .side-nav{
    width:282px;height:100vh;
    transform:translateX(-100%);
    transition:transform .28s ease;
    box-shadow:0 20px 60px rgba(15,58,50,.22);
    z-index:90;
  }
  .side-nav.is-open{transform:none;}
  .page-wrap{padding:84px 24px 96px;}
  .related-grid{grid-template-columns:1fr;gap:16px;}
  .footer{padding:48px 24px 108px;}
  .footer-brand{grid-template-columns:1fr;gap:16px;}
  .footer-cols{grid-template-columns:repeat(2,1fr);}
  .sticky-bar{left:0;height:calc(60px + env(safe-area-inset-bottom));
    padding:0 16px calc(env(safe-area-inset-bottom));}
  .sticky-bar .sb-text{font-size:13px;}
}
@media (max-width:900px){
  .article-head h1{font-size:28px;}
  .article-body{max-width:100%;}
  .article-foot{max-width:100%;}
  .cta-block{padding:36px 20px;}
}
@media (max-width:640px){
  body{font-size:15px;}
  .page-wrap{padding:76px 16px 92px;}
  .breadcrumb{font-size:12px;}
  .article-meta{font-size:12px;gap:8px;}
  .article-head h1{font-size:25px;line-height:1.35;}
  .button,.btn{width:100%;}
  .back-links{flex-direction:column;}
  .cta-actions{flex-direction:column;}
  .sticky-bar .sb-text{max-width:52%;line-height:1.35;}
  .sticky-bar .btn{width:auto;height:40px;padding:0 16px;font-size:14px;}
  .footer-cols{grid-template-columns:1fr;gap:20px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category1 */
:root{
  --ink:#0F3A32;
  --ink-2:#1B4E42;
  --lime:#CDEB4F;
  --warm:#FF7A45;
  --paper:#FBFBF7;
  --card:#FFFFFF;
  --line:#E5E8E1;
  --text:#17211E;
  --muted:#5B6661;
  --radius-lg:16px;
  --radius-md:12px;
  --shadow:0 8px 24px rgba(15,58,50,.07);
  --shadow-hover:0 14px 32px rgba(15,58,50,.12);
  --side-w:260px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --font-num:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

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

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

body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink);text-decoration:none;transition:color .16s ease;}
a:hover{color:var(--ink-2);}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 48px;
}

/* ============ 侧栏导航 ============ */
.side-nav{
  position:fixed;
  top:0;left:0;
  width:var(--side-w);
  height:100vh;
  background:var(--paper);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:0 16px 20px;
  z-index:80;
  overflow-y:auto;
}

.brand{
  height:72px;
  margin:0 -16px;
  background:var(--ink);
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:0 20px;
  flex-shrink:0;
}
.brand .b-main{
  color:#fff;
  font-size:17px;
  font-weight:700;
  letter-spacing:.6px;
  line-height:1.25;
}
.brand .b-sub{
  color:rgba(255,255,255,.62);
  font-size:11px;
  letter-spacing:2.4px;
  line-height:1.6;
  text-transform:uppercase;
}

.nav-label{
  display:block;
  font-size:11.5px;
  letter-spacing:2.4px;
  color:var(--muted);
  margin:24px 0 10px 12px;
}

.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--text);
  transition:background .16s ease,color .16s ease;
}
.nav-item + .nav-item{margin-top:4px;}
.nav-item svg{
  width:16px;height:16px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.6;
  stroke-linecap:round;
  stroke-linejoin:round;
  opacity:.7;
  flex-shrink:0;
}
.nav-item:hover{background:#F1F3EE;color:var(--ink);}
.nav-item.active{
  background:rgba(205,235,79,.12);
  color:var(--ink);
  font-weight:700;
}
.nav-item.active svg{opacity:1;}
.nav-item.active::before{
  content:"";
  position:absolute;
  left:0;top:9px;bottom:9px;
  width:3px;
  border-radius:3px;
  background:var(--lime);
}

.side-cta{
  margin-top:auto;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.side-cta .btn-primary{width:100%;}
.side-note{
  margin-top:10px;
  font-size:12px;
  line-height:1.6;
  color:var(--muted);
  text-align:center;
  letter-spacing:.2px;
}

/* ============ 按钮与标签 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.2px;
  transition:background .16s ease,transform .16s ease,box-shadow .16s ease,border-color .16s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--ink);color:#fff;border:1px solid var(--ink);}
.btn-primary:hover{background:var(--ink-2);border-color:var(--ink-2);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-lime{background:var(--lime);color:var(--ink);border:1px solid var(--lime);}
.btn-lime:hover{background:#c2e13c;border-color:#c2e13c;color:var(--ink);box-shadow:0 8px 20px rgba(205,235,79,.32);}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn-ghost:hover{background:#F2F4EF;border-color:#d6dbcf;color:var(--ink);}

.pill{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  font-size:13px;
  line-height:1;
  color:var(--ink-2);
  white-space:nowrap;
}
.pill-solid{background:rgba(205,235,79,.18);border-color:rgba(205,235,79,.6);color:var(--ink);font-weight:600;}
.pill-warm{border-color:rgba(255,122,69,.45);color:#B14A22;background:rgba(255,122,69,.08);}

/* ============ 主内容区 ============ */
.site-main{margin-left:var(--side-w);min-height:100vh;}

/* ============ 分类大图头 ============ */
.cat-hero{
  position:relative;
  min-height:320px;
  display:flex;
  align-items:flex-end;
  padding:56px 0 44px;
  color:#fff;
  background-image:
    linear-gradient(135deg,rgba(15,58,50,.88) 0%,rgba(15,58,50,.56) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;
  right:-40px;bottom:-40px;
  width:220px;height:220px;
  border:14px solid rgba(205,235,79,.14);
  transform:rotate(14deg);
  border-radius:28px;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:rgba(255,255,255,.72);
  margin-bottom:22px;
}
.crumb a{color:rgba(255,255,255,.72);}
.crumb a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:2px;text-underline-offset:3px;}
.crumb span{opacity:.55;}
.cat-hero h1{
  font-size:clamp(30px,4vw,44px);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.5px;
  color:#fff;
  max-width:820px;
}
.cat-hero .hero-sub{
  margin-top:18px;
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
  max-width:640px;
}
.cat-hero .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.cat-hero .hero-tags .pill{
  background:rgba(255,255,255,.1);
  border-color:rgba(255,255,255,.28);
  color:#fff;
  backdrop-filter:blur(2px);
}

/* ============ 板块通用 ============ */
.section{padding:76px 0;}
.section-tight{padding:56px 0;}
.sec-head{max-width:760px;margin-bottom:34px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:12.5px;
  letter-spacing:2.2px;
  font-weight:600;
  color:var(--ink-2);
}
.eyebrow::before{
  content:"";
  width:8px;height:8px;
  background:var(--lime);
  border-radius:2px;
  transform:rotate(45deg);
}
.sec-head h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.3px;
  margin:16px 0 18px;
  color:var(--ink);
}
.sec-head p{
  font-size:15.5px;
  line-height:1.9;
  color:var(--muted);
  max-width:680px;
}

/* ============ 介绍正文 ============ */
.prose{max-width:820px;color:#2A3531;}
.prose p{font-size:16px;line-height:1.95;margin-bottom:18px;}
.prose h3{
  position:relative;
  font-size:20px;
  font-weight:600;
  line-height:1.45;
  color:var(--ink);
  margin:38px 0 14px;
  padding-left:16px;
}
.prose h3::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:3px;
  border-radius:2px;
  background:var(--lime);
}
.prose strong{color:var(--ink);font-weight:600;}

/* ============ 内容卡片 ============ */
.content-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
  height:100%;
  color:var(--text);
}
.card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(15,58,50,.2);
  color:var(--text);
}
.card-thumb{
  aspect-ratio:16/10;
  overflow:hidden;
  background:#EDEFE9;
}
.card-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.card:hover .card-thumb img{transform:scale(1.04);}
.card-body{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px 26px 24px;
  flex:1;
}
.card-body h3{
  font-size:19px;
  font-weight:600;
  line-height:1.5;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-body p{
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px dashed var(--line);
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:var(--muted);
  flex-wrap:wrap;
}
.card-meta .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.3px;}
.card-meta .read{
  margin-left:auto;
  color:var(--ink);
  font-weight:600;
}
.card:hover .card-meta .read{
  text-decoration:underline;
  text-decoration-color:var(--lime);
  text-decoration-thickness:2px;
  text-underline-offset:3px;
}

/* ============ 图文流程 ============ */
.split{
  display:grid;
  grid-template-columns:minmax(0,0.95fr) minmax(0,1.05fr);
  gap:48px;
  align-items:center;
}
.split-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  aspect-ratio:16/11;
  background:#EDEFE9;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(15,58,50,.28),rgba(15,58,50,0) 62%);
}
.split-media .float-badge{
  position:absolute;
  left:18px;bottom:18px;
  background:#fff;
  border-radius:10px;
  padding:10px 16px;
  font-size:13px;
  font-weight:600;
  color:var(--ink);
  box-shadow:0 8px 20px rgba(15,58,50,.16);
  z-index:2;
}
.split-content h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.3px;
  color:var(--ink);
  margin:16px 0 18px;
}
.split-content > p{
  font-size:15.5px;
  line-height:1.9;
  color:var(--muted);
  margin-bottom:26px;
}
.step-list{display:flex;flex-direction:column;gap:16px;}
.step-item{
  display:flex;
  gap:16px;
  padding:18px 20px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease;
}
.step-item:hover{
  border-color:rgba(15,58,50,.2);
  box-shadow:var(--shadow);
  transform:translateY(-2px);
}
.step-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:20px;
  font-weight:700;
  color:var(--ink);
  line-height:1.3;
  min-width:36px;
}
.step-item h4{
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  line-height:1.5;
  margin-bottom:4px;
}
.step-item p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--muted);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .16s ease,border-color .16s ease;
}
.faq-item:hover{border-color:#d6dbcf;}
.faq-item.open{
  box-shadow:inset 3px 0 0 var(--lime),0 8px 24px rgba(15,58,50,.07);
  border-color:#d6dbcf;
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink);
}
.faq-icon{
  position:relative;
  width:18px;height:18px;
  flex-shrink:0;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--ink);
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a-inner{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ============ CTA ============ */
.cta-block{
  position:relative;
  background:
    repeating-linear-gradient(135deg,rgba(15,58,50,.035) 0 2px,transparent 2px 12px),
    #F2F4EF;
  border:1px solid var(--line);
  border-radius:20px;
  padding:60px 32px;
  text-align:center;
  overflow:hidden;
}
.cta-block h2{
  font-size:clamp(24px,2.6vw,30px);
  font-weight:700;
  line-height:1.3;
  color:var(--ink);
  margin-bottom:16px;
  letter-spacing:-.3px;
}
.cta-block p{
  font-size:15.5px;
  line-height:1.9;
  color:var(--muted);
  max-width:600px;
  margin:0 auto 30px;
}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}
.cta-note{
  margin-top:22px;
  font-size:13px;
  color:var(--muted);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  letter-spacing:.2px;
}

/* ============ 页脚 ============ */
.footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:64px 0 100px;
  margin-top:20px;
}
.footer .container{padding:0 48px;}
.footer-brand{
  display:flex;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.fb-name{font-size:22px;font-weight:700;color:#fff;letter-spacing:.4px;}
.fb-sub{font-size:11.5px;letter-spacing:2.6px;color:var(--lime);margin-top:6px;text-transform:uppercase;}
.footer-brand p{
  max-width:540px;
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.62);
}
.footer-cols{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:32px;
  padding:38px 0;
}
.fcol h4{
  font-size:13px;
  letter-spacing:2px;
  color:rgba(255,255,255,.5);
  margin-bottom:16px;
  font-weight:600;
}
.fcol li{margin-bottom:10px;}
.fcol a{
  font-size:15px;
  color:rgba(255,255,255,.82);
  line-height:1.7;
}
.fcol a:hover{
  color:#fff;
  text-decoration:underline;
  text-decoration-color:var(--lime);
  text-decoration-thickness:2px;
  text-underline-offset:3px;
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ 底部固定转化条 ============ */
.cta-bar{
  position:fixed;
  left:var(--side-w);
  right:0;
  bottom:0;
  height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:0 32px;
  background:var(--ink);
  color:#fff;
  z-index:90;
  box-shadow:0 -10px 28px rgba(15,58,50,.2);
}
.cta-bar .bar-text{
  font-size:15px;
  line-height:1.5;
  color:rgba(255,255,255,.88);
  display:flex;
  align-items:center;
  gap:10px;
}
.cta-bar .bar-text::before{
  content:"";
  width:7px;height:7px;
  border-radius:50%;
  background:var(--lime);
  flex-shrink:0;
}
.cta-bar .btn{height:42px;font-size:14.5px;}

/* ============ 移动顶栏与抽屉 ============ */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:56px;
  background:#fff;
  border-bottom:1px solid var(--line);
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  z-index:100;
}
.topbar-brand{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.3px;
}
.menu-btn{
  width:44px;height:44px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border-radius:10px;
  transition:background .16s ease;
}
.menu-btn:hover{background:#F1F3EE;}
.menu-btn span{
  display:block;
  width:20px;height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .22s ease,opacity .22s ease;
}
.menu-btn.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-btn.is-open span:nth-child(2){opacity:0;}
.menu-btn.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(15,58,50,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
  z-index:75;
}
.drawer-mask.show{opacity:1;visibility:visible;}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{padding:0 32px;}
  .footer .container{padding:0 32px;}
  .split{gap:36px;}
}

@media (max-width:1024px){
  body{padding-top:56px;}
  .topbar{display:flex;}
  .side-nav{
    transform:translateX(-100%);
    transition:transform .24s ease;
    box-shadow:0 0 40px rgba(15,58,50,.18);
    width:280px;
    padding-top:0;
  }
  .side-nav.is-open{transform:translateX(0);}
  .brand{margin:0 -16px;border-radius:0;}
  .site-main{margin-left:0;}
  .cta-bar{left:0;height:60px;padding:0 16px;}
  .cta-bar .bar-text{font-size:13px;}
  .cta-bar .btn{height:40px;padding:0 16px;font-size:14px;}
  .footer{padding-bottom:92px;}
  .cat-hero{min-height:280px;padding:48px 0 40px;}
  .section{padding:60px 0;}
}

@media (max-width:900px){
  .content-grid{grid-template-columns:minmax(0,1fr);}
  .split{grid-template-columns:minmax(0,1fr);gap:28px;}
  .split-media{order:2;aspect-ratio:16/10;}
  .split-content{order:1;}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}

@media (max-width:640px){
  body{font-size:15px;}
  .container{padding:0 18px;}
  .footer .container{padding:0 18px;}
  .cat-hero{min-height:240px;padding:40px 0 34px;}
  .cat-hero .hero-sub{font-size:15px;}
  .cat-hero::after{display:none;}
  .section{padding:48px 0;}
  .sec-head{margin-bottom:26px;}
  .prose h3{font-size:18px;margin-top:30px;}
  .card-body{padding:20px 20px 22px;}
  .card-body h3{font-size:17.5px;}
  .cta-block{padding:44px 20px;border-radius:16px;}
  .cta-actions .btn{width:100%;}
  .footer-cols{grid-template-columns:minmax(0,1fr);gap:24px;}
  .footer-brand{padding-bottom:28px;}
  .fb-name{font-size:19px;}
  .cta-bar .bar-text{max-width:52%;font-size:12.5px;line-height:1.4;}
  .cta-bar{gap:10px;}
  .faq-q{padding:17px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 18px;font-size:14.5px;}
  .step-item{padding:16px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category2 */
:root{
  --ink:#0F3A32;
  --ink-2:#1B4E42;
  --lime:#CDEB4F;
  --warm:#FF7A45;
  --paper:#FBFBF7;
  --card:#FFFFFF;
  --line:#E5E8E1;
  --text:#17211E;
  --muted:#5B6661;
  --soft:#F2F4EF;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(15,58,50,.07);
  --shadow-hover:0 14px 34px rgba(15,58,50,.12);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,"Roboto Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;border-radius:var(--radius-sm)}
a{color:var(--ink);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--ink-2)}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.25;letter-spacing:-.5px;font-weight:700}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3}
h3{font-size:20px;line-height:1.45;font-weight:600}
p{margin:0 0 1.1em;line-height:1.9}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em}

/* ============ 侧栏 ============ */
.sidebar{
  position:fixed;left:0;top:0;width:260px;height:100vh;
  display:flex;flex-direction:column;
  padding:0 16px 18px;
  background:var(--paper);
  border-right:1px solid var(--line);
  z-index:80;
}
.brand{
  height:72px;margin:0 -16px 16px;padding:0 18px;
  display:flex;flex-direction:column;justify-content:center;gap:2px;
  background:var(--ink);color:#fff;
}
.brand-main{font-size:15px;font-weight:700;line-height:1.2;letter-spacing:.2px}
.brand-sub{font-size:11px;letter-spacing:1.6px;color:rgba(255,255,255,.62)}
.nav-label{display:block;padding:6px 10px 8px;font-size:11px;letter-spacing:2px;color:var(--muted)}
.side-nav{display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--text);
  transition:background .16s ease,color .16s ease;
}
.nav-item svg{
  width:18px;height:18px;flex:0 0 18px;
  fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;opacity:.72;
}
.nav-item:hover{background:#F1F3EE;color:var(--text)}
.nav-item.active{background:rgba(205,235,79,.16);font-weight:700}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;background:var(--lime);
}
.nav-item.active svg{opacity:1}
.side-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.side-note{margin:10px 0 0;font-size:12px;line-height:1.7;color:var(--muted);text-align:center}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  background:var(--ink);color:#fff;
  transition:transform .16s ease,background .16s ease,box-shadow .16s ease,border-color .16s ease,color .16s ease;
}
.btn:hover{background:var(--ink-2);color:#fff;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-lime{background:var(--lime);color:var(--ink);border-color:transparent}
.btn-lime:hover{background:#c3e23c;color:var(--ink);box-shadow:0 10px 24px rgba(15,58,50,.18)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--soft);border-color:#cfd6c9;color:var(--ink)}
.btn-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.32);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-block{width:100%}
.btn-sm{height:42px;padding:0 18px;font-size:14px}

/* ============ 移动顶栏 ============ */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;
  align-items:center;justify-content:space-between;
  padding:0 14px;background:#fff;border-bottom:1px solid var(--line);z-index:70;
}
.mb-brand{font-size:14px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.burger{
  width:44px;height:44px;display:grid;place-items:center;
  background:transparent;border:0;border-radius:10px;cursor:pointer;color:var(--ink);
}
.burger:hover{background:var(--soft)}
.burger span{display:block;width:20px;height:2px;background:currentColor;border-radius:2px;position:relative}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:currentColor;border-radius:2px;
}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.drawer-mask{display:none;position:fixed;inset:0;background:rgba(15,58,50,.45);z-index:75}
.drawer-mask.show{display:block}

/* ============ 主区域 ============ */
.main{margin-left:260px;padding:28px 48px 118px 40px}
.container{max-width:1200px;margin:0 auto}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--muted)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--ink);box-shadow:inset 0 -2px 0 var(--lime)}
.crumbs .sep{color:#b8c0b6}
.crumbs .cur{color:var(--ink);font-weight:600}

/* ============ 分栏头 ============ */
.cat-hero{
  position:relative;margin-top:18px;overflow:hidden;
  display:grid;grid-template-columns:200px 1fr;gap:40px;align-items:center;
  padding:44px 40px;border-radius:20px;
  background:var(--ink);color:#fff;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.055) 0 2px,transparent 2px 13px);
}
.cat-tags{
  position:relative;z-index:1;
  display:flex;gap:14px;align-items:center;min-height:190px;
  padding-right:22px;border-right:1px solid rgba(255,255,255,.18);
}
.vtag{
  writing-mode:vertical-rl;letter-spacing:7px;
  font-size:13px;line-height:1;padding:16px 7px;border-radius:999px;
  color:rgba(255,255,255,.76);
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.05);
}
.vtag.hi{color:var(--ink);background:var(--lime);border-color:var(--lime);font-weight:700}
.cat-hero-txt{position:relative;z-index:1}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:2px;color:rgba(255,255,255,.62);margin-bottom:14px;
}
.hero-eyebrow::before{content:"";width:4px;height:4px;border-radius:1px;background:var(--lime)}
.cat-hero h1{color:#fff}
.cat-hero p.lede{margin:18px 0 0;max-width:640px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.82)}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px;margin:24px 0 0;padding:0}
.hero-stats li{display:flex;align-items:baseline;gap:6px;font-size:13px;color:rgba(255,255,255,.7)}
.hero-stats b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:20px;font-weight:700;color:var(--lime)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ============ 通用板块 ============ */
.section{margin-top:72px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:24px}
.eyebrow{display:block;font-size:12px;letter-spacing:2px;color:var(--muted);margin-bottom:10px}
.section-head h2{margin:0}
.head-link{font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap}
.head-link:hover{box-shadow:inset 0 -2px 0 var(--lime)}

/* 介绍 + 侧卡 */
.intro-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:40px;align-items:start}
.prose h3{margin:34px 0 12px;position:relative;padding-left:14px}
.prose h3::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--lime)}
.prose p{color:#2b3733}
.quote{
  margin:26px 0 0;padding:20px 22px;border-left:4px solid var(--ink);
  background:var(--soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  font-size:15px;line-height:1.85;color:var(--ink-2);
}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);
}
.side-card h4{font-size:16px;margin-bottom:16px}
.side-card .kv{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px}
.side-card .kv:last-of-type{border-bottom:0}
.side-card .kv span{color:var(--muted)}
.side-card .kv b{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--ink)}
.tip{margin:18px 0 0;padding:14px 16px;border-radius:var(--radius-sm);background:rgba(205,235,79,.22);font-size:13px;line-height:1.75;color:var(--ink-2)}

/* 卡片区 */
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(15,58,50,.2)}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-tag{
  position:absolute;left:14px;top:14px;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.4px;
  color:var(--ink);background:rgba(255,255,255,.92);border:1px solid rgba(15,58,50,.12);
}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:19px;margin:0 0 10px}
.card-body p{
  margin:0 0 16px;font-size:15px;line-height:1.8;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding-top:14px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted);
}
.card-meta .num{color:var(--ink);font-weight:600}
.card-meta .dot{width:4px;height:4px;border-radius:1px;background:#c6cdc2}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(15,58,50,.2)}
.step .no{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:28px;font-weight:700;color:var(--lime);-webkit-text-stroke:1px rgba(15,58,50,.18);display:block;line-height:1}
.step h3{font-size:17px;margin:14px 0 8px}
.step p{margin:0;font-size:14px;line-height:1.8;color:var(--muted)}

/* FAQ */
.faq-list{max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.faq-item.open{box-shadow:inset 2px 0 0 0 var(--lime),var(--shadow)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--text);text-align:left;
}
.faq-q:hover{color:var(--ink-2)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;border-radius:50%;border:1px solid var(--line);transition:transform .26s ease,border-color .16s ease,background .16s ease}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--ink);border-radius:2px;
}
.faq-icon::before{width:10px;height:1.5px}
.faq-icon::after{width:1.5px;height:10px;transition:opacity .26s ease}
.faq-item.open .faq-icon{border-color:var(--lime);background:rgba(205,235,79,.3);transform:rotate(180deg)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 22px}
.faq-a p{margin:0;padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--muted)}

/* CTA */
.cta{
  position:relative;overflow:hidden;text-align:center;
  padding:56px 40px;border-radius:20px;color:#fff;
  background:
    linear-gradient(135deg,rgba(15,58,50,.94),rgba(27,78,66,.86)),
    url("/assets/images/backpic/back-3.png") center/cover no-repeat;
}
.cta h2{color:#fff;max-width:760px;margin:0 auto}
.cta p{margin:16px auto 0;max-width:620px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.82)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:28px}
.cta-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.6)}

/* 底部固定条 */
.convert-bar{
  position:fixed;left:260px;right:0;bottom:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:68px;padding:10px 40px;
  background:var(--ink);color:#fff;
  box-shadow:0 -10px 28px rgba(15,58,50,.2);
}
.convert-bar p{margin:0;font-size:15px;color:rgba(255,255,255,.86)}
.convert-bar .btn{height:44px;flex:0 0 auto}

/* 页脚 */
.footer{
  margin-top:72px;background:var(--ink);color:#fff;
  padding:64px 0 32px;border-radius:20px;
}
.footer .container{padding:0 36px}
.footer-brand{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:32px;align-items:start;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.14)}
.fb-name{font-size:19px;font-weight:700;letter-spacing:.3px}
.fb-sub{font-size:11px;letter-spacing:2.4px;color:rgba(255,255,255,.55);margin-top:6px}
.footer-brand p{margin:0;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66)}
.footer-cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:36px 0}
.fcol h4{font-size:13px;letter-spacing:1.6px;color:rgba(255,255,255,.5);margin-bottom:14px;font-weight:600}
.fcol li{margin-bottom:10px}
.fcol a{font-size:15px;color:rgba(255,255,255,.84)}
.fcol a:hover{color:#fff;box-shadow:inset 0 -2px 0 var(--lime)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .main{padding:24px 32px 116px 28px}
  .cat-hero{padding:38px 30px;gap:30px;grid-template-columns:170px 1fr}
  .intro-grid{gap:28px}
}
@media (max-width:1024px){
  .mobile-bar{display:flex}
  .sidebar{transform:translateX(-100%);transition:transform .26s ease;box-shadow:none}
  .sidebar.open{transform:translateX(0);box-shadow:0 24px 60px rgba(15,58,50,.3)}
  .main{margin-left:0;padding:76px 20px 108px}
  .cat-hero{grid-template-columns:1fr;gap:22px;padding:32px 24px;border-radius:16px}
  .cat-tags{
    min-height:auto;flex-wrap:wrap;gap:10px;
    padding:0 0 18px;border-right:0;border-bottom:1px solid rgba(255,255,255,.18);
  }
  .vtag{writing-mode:horizontal-tb;letter-spacing:1px;padding:7px 14px;border-radius:999px;font-size:12px}
  .intro-grid{grid-template-columns:1fr}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:1fr}
  .convert-bar{left:0;padding:10px 16px calc(10px + env(safe-area-inset-bottom));min-height:60px}
  .convert-bar p{font-size:13px;line-height:1.5}
  .footer .container{padding:0 24px}
  .footer-brand{grid-template-columns:1fr;gap:18px}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;padding:28px 0}
}
@media (max-width:900px){
  .cards{grid-template-columns:1fr}
  .section{margin-top:56px}
  .cat-hero h1{font-size:clamp(26px,6vw,34px)}
  .hero-stats{gap:18px}
}
@media (max-width:640px){
  .main{padding:72px 16px 104px}
  .section{margin-top:48px}
  .cat-hero{padding:26px 18px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cards{gap:18px}
  .card-body{padding:18px 18px 20px}
  .cta{padding:38px 20px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .convert-bar p{max-width:150px}
  .footer{padding:44px 0 26px;border-radius:16px}
  .footer .container{padding:0 18px}
  .footer-cols{grid-template-columns:1fr 1fr;gap:18px}
  .footer-bottom{flex-direction:column;gap:6px}
  .faq-q{padding:16px 16px;font-size:15px}
  .faq-a{padding:0 16px}
  .side-card{padding:20px}
}