/* roulang page: index */
:root{
  --brand-900:#0F3D2C;
  --brand-700:#14513A;
  --brand-500:#1E7A55;
  --brand-050:#EEF5EF;
  --accent-lime:#C6F24E;
  --accent-orange:#FF7A33;
  --bg-page:#F5F7F4;
  --bg-card:#FFFFFF;
  --line:#E3E9E2;
  --text-strong:#0E1A15;
  --text-body:#4A5A52;
  --text-muted:#7C8C84;
  --danger:#E5484D;
  --grad-brand:linear-gradient(135deg,#0F3D2C 0%,#1E7A55 55%,#C6F24E 130%);
  --shadow-card:0 8px 24px rgba(15,61,44,.08);
  --shadow-lift:0 16px 40px rgba(15,61,44,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--bg-page);
  color:var(--text-body);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:16px}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent-orange)}
h1,h2,h3,h4{margin:0;color:var(--text-strong);font-weight:700;line-height:1.35}
h1{font-size:clamp(28px,4.4vw,46px)}
h2{font-size:clamp(23px,3vw,31px)}
h3{font-size:clamp(18px,2vw,21px);font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid var(--accent-lime);outline-offset:2px;border-radius:8px}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:640px){.container-x{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.container-x{padding-left:32px;padding-right:32px}}

.nums{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.section{padding-top:52px;padding-bottom:52px}
@media (min-width:1024px){.section{padding-top:92px;padding-bottom:92px}}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;padding-top:12px;padding-bottom:10px;transition:background .25s ease,box-shadow .25s ease}
.site-header.is-stuck{background:rgba(245,247,244,.9);backdrop-filter:blur(8px);box-shadow:0 6px 20px rgba(15,61,44,.08)}
.nav-card{
  display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow-card);
  padding:10px 12px;
}
.brand-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;padding:4px 8px}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad-brand);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;letter-spacing:.5px;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{color:var(--brand-900);font-size:16px;font-weight:700;letter-spacing:.2px}
.brand-text span{color:var(--text-muted);font-size:11px;letter-spacing:.6px}
.nav-items{display:none;gap:8px;flex:1 1 auto;justify-content:center}
@media (min-width:1024px){.nav-items{display:flex}}
.nav-item{
  display:flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:14px;
  color:var(--text-body);font-size:14.5px;font-weight:500;
  border:1px solid transparent;
  transition:all .2s ease;
  position:relative;
}
.nav-item i{color:var(--brand-500);font-size:13px}
.nav-item:hover{background:var(--brand-050);color:var(--brand-900);transform:translateY(-2px);box-shadow:var(--shadow-card)}
.nav-item.active{background:var(--brand-050);color:var(--brand-900);font-weight:600;border-color:#DCE9DE}
.nav-item.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-3px;height:3px;
  border-radius:999px;background:var(--accent-lime);
}
.nav-cta{display:none;gap:10px;flex:0 0 auto;align-items:center}
@media (min-width:768px){.nav-cta{display:flex}}
.burger{
  margin-left:auto;display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;color:var(--brand-900);
}
@media (min-width:1024px){.burger{display:none}}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:12px 22px;
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:all .2s ease;white-space:nowrap;
}
.btn i{font-size:13px}
.btn-primary{background:var(--accent-orange);color:#fff;box-shadow:0 8px 20px rgba(255,122,51,.28)}
.btn-primary:hover{background:#ff8a4d;color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,122,51,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-gradient{background:var(--grad-brand);color:#fff;box-shadow:0 8px 20px rgba(30,122,85,.26)}
.btn-gradient:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(30,122,85,.32)}
.btn-ghost{background:#fff;color:var(--brand-900);border-color:#CFE0D4}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-900);transform:translateY(-2px);box-shadow:var(--shadow-card)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:15px 30px;font-size:16px}
.btn-disabled,.btn[disabled]{opacity:.45;pointer-events:none}
.link-more{color:var(--brand-900);font-weight:600;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;text-decoration-color:var(--accent-lime)}
.link-more:hover{color:var(--accent-orange);text-decoration-color:var(--accent-orange)}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:999px;padding:5px 12px;
  font-size:12.5px;font-weight:600;letter-spacing:.2px;
  background:var(--brand-050);color:var(--brand-700);border:1px solid #DCE9DE;
}
.badge-lime{background:var(--accent-lime);color:var(--brand-900);border-color:#B6E03F}
.badge-orange{background:#FFF0E6;color:#C24F16;border-color:#FFD9C2}
.badge-glass{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.28)}
.badge-dark{background:rgba(255,255,255,.10);color:#EAF6EE;border-color:rgba(255,255,255,.18)}

/* 卡片 */
.card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card-hover:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:#D2E3D6}

/* Hero */
.hero{
  position:relative;overflow:hidden;border-radius:24px;
  background-image:linear-gradient(100deg,rgba(15,61,44,.95) 0%,rgba(15,61,44,.86) 40%,rgba(20,81,58,.55) 70%,rgba(30,122,85,.28) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(198,242,78,.10) 0 2px,transparent 2px 16px);
  opacity:.5;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:36px 20px 40px;display:grid;gap:28px}
@media (min-width:768px){.hero-inner{padding:52px 36px 56px}}
@media (min-width:1024px){.hero-inner{padding:64px 48px;grid-template-columns:1.08fr .92fr;gap:44px;min-height:600px;align-items:center}}
.hero h1{color:#fff;text-shadow:0 2px 18px rgba(0,0,0,.22)}
.hero-sub{color:rgba(255,255,255,.86);font-size:clamp(15px,1.6vw,17.5px);margin-top:14px;max-width:34em}
.hero-badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:26px;max-width:520px}
.hero-stat{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);border-radius:16px;padding:12px 14px}
.hero-stat b{display:block;font-size:clamp(19px,2.6vw,25px);color:var(--accent-lime);font-weight:700}
.hero-stat span{font-size:12.5px;color:rgba(255,255,255,.78)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-side{
  background:rgba(255,255,255,.97);
  border-radius:24px;padding:18px;color:var(--text-body);
  box-shadow:0 24px 60px rgba(4,26,17,.34);
  border:1px solid rgba(255,255,255,.6);
}
@media (min-width:1024px){.hero-side{margin-top:-22px}}
.hero-side h3{color:var(--brand-900);font-size:18px}
.hero-side ul{margin-top:14px;display:grid;gap:10px}
.hero-side li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text-body)}
.hero-side li i{color:var(--brand-500);margin-top:6px;font-size:12px}

/* 数据徽章带 */
.stat-band{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
@media (min-width:900px){.stat-band{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat-band .stat{padding:18px 20px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.stat b{display:block;font-size:clamp(22px,2.6vw,28px);color:var(--brand-900);font-weight:700}
.stat span{font-size:13px;color:var(--text-muted)}

/* 优惠阶梯 */
.tier-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.tier-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.tier-grid{grid-template-columns:repeat(4,minmax(0,1fr));align-items:end}}
.tier{padding:22px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-card);display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease}
.tier:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}
.tier::before{content:"";display:block;height:5px;border-radius:999px;background:#DCE9DE;margin:-6px 0 16px}
.tier h3{margin-top:12px;font-size:19px;color:var(--brand-900)}
.tier .tier-num{font-size:clamp(24px,3vw,30px);font-weight:700;color:var(--brand-500);margin-top:8px}
.tier .tier-num small{font-size:13px;color:var(--text-muted);font-weight:500;margin-left:4px}
.tier ul{margin-top:16px;display:grid;gap:9px;flex:1 1 auto}
.tier li{font-size:14px;color:var(--text-body);display:flex;gap:8px;align-items:flex-start}
.tier li i{color:var(--brand-500);font-size:11px;margin-top:7px}
.tier .btn{margin-top:20px;width:100%}
@media (min-width:1024px){
  .tier-1{min-height:340px}
  .tier-2{min-height:378px}
  .tier-3{min-height:410px}
  .tier-4{min-height:446px;border:1px solid #B6E03F;box-shadow:0 18px 44px rgba(15,61,44,.16)}
  .tier-4::before{background:var(--accent-lime)}
}

/* 套餐对比 */
.plan-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.plan-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.plan-grid{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start}}
.plan{padding:24px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-card);display:flex;flex-direction:column}
.plan-head b{display:block;font-size:19px;color:var(--brand-900)}
.plan-price{margin-top:12px;display:flex;align-items:baseline;gap:6px}
.plan-price strong{font-size:clamp(28px,3.4vw,34px);color:var(--brand-500);font-weight:700}
.plan-price span{font-size:13px;color:var(--text-muted)}
.plan-list{margin-top:18px;display:grid;gap:0;flex:1 1 auto}
.plan-row{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-body);padding:10px 0;border-bottom:1px dashed var(--line)}
.plan-row:last-child{border-bottom:none}
.plan-row i{font-size:12px;margin-top:6px}
.plan-row .ok{color:var(--brand-500)}
.plan-row .no{color:#B9C4BD}
.plan .btn{margin-top:20px;width:100%}
.plan-reco{position:relative;border-top:4px solid var(--accent-lime)}
@media (min-width:1024px){.plan-reco{margin-top:-8px}}
.plan-reco .plan-tag{position:absolute;top:-14px;right:20px}

/* 限时入口 */
.limited{
  position:relative;overflow:hidden;border-radius:24px;
  background:var(--brand-900);color:#fff;padding:26px 22px;
  display:grid;gap:20px;align-items:center;
  box-shadow:0 18px 44px rgba(15,61,44,.24);
}
.limited::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(198,242,78,.16) 0 2px,transparent 2px 16px);
  opacity:.8;pointer-events:none;
}
.limited>*{position:relative;z-index:2}
@media (min-width:1024px){.limited{grid-template-columns:1.1fr auto auto;padding:28px 36px;gap:28px}}
.countdown{display:grid;grid-template-columns:repeat(4,minmax(64px,1fr));gap:10px}
.cd-block{
  background:#0B2E21;border:1px solid rgba(255,255,255,.14);border-radius:14px;
  padding:10px 6px;text-align:center;
}
.cd-block b{display:block;font-size:clamp(20px,2.6vw,26px);color:#fff;font-weight:700}
.cd-block span{font-size:11.5px;color:rgba(255,255,255,.62)}

/* 表单 */
.consult-grid{display:grid;gap:24px}
@media (min-width:1024px){.consult-grid{grid-template-columns:.9fr 1.1fr;gap:36px;align-items:start}}
.form-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow-card);position:relative}
@media (min-width:640px){.form-card{padding:28px}}
.form-alert{display:none;border-radius:14px;padding:11px 14px;font-size:14px;margin-bottom:16px}
.form-alert.show{display:block}
.form-alert.ok{background:#EAF7EF;color:#146C43;border:1px solid #BFE4CC}
.form-alert.err{background:#FDECEC;color:#B3261E;border:1px solid #F7C9C7}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text-strong);margin-bottom:7px}
.field label .req{color:var(--accent-orange);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;border-radius:14px;border:1px solid var(--line);background:#FBFCFA;
  padding:12px 14px;font-size:15px;color:var(--text-strong);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#A4B1A9}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(198,242,78,.55);
}
.field.error input,.field.error select,.field.error textarea{border-color:var(--danger);background:#FFF7F7}
.field .hint{display:none;font-size:12px;color:var(--danger);margin-top:6px}
.field.error .hint{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--text-body)}
.check-row input{width:18px;height:18px;margin-top:4px;accent-color:var(--brand-500)}
.contact-mini{display:flex;gap:12px;align-items:flex-start;padding:14px;border-radius:16px;background:#fff;border:1px solid var(--line)}

/* 内容列表 */
.news-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.news-card{overflow:hidden;display:flex;flex-direction:column}
.news-thumb{position:relative;overflow:hidden;border-radius:16px 16px 0 0}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:16px 16px 0 0;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-thumb .badge{position:absolute;top:12px;left:12px;z-index:2}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-muted)}
.empty-state{grid-column:1/-1;background:#fff;border:1px dashed #CFDCD3;border-radius:20px;padding:44px 20px;text-align:center}
.empty-state i{font-size:26px;color:#B9C4BD}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease}
.faq-item:hover{box-shadow:var(--shadow-card)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--text-strong);
  transition:color .2s ease,box-shadow .2s ease,background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--brand-050)}
.faq-item[open]{border-color:#D3E5D8}
.faq-item[open] summary{color:var(--brand-900);box-shadow:inset 3px 0 0 var(--accent-lime);background:var(--brand-050)}
.faq-arrow{transition:transform .25s ease;color:var(--brand-500);font-size:13px}
.faq-item[open] .faq-arrow{transform:rotate(180deg)}
.faq-body{padding:2px 20px 20px;font-size:15px;color:var(--text-body);max-width:68ch;line-height:1.8}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:20px}
.footer-top{border-top:1px solid rgba(255,255,255,.08);padding:56px 0 36px}
.footer-grid{display:grid;gap:30px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr}}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.3px}
.site-footer a{color:rgba(255,255,255,.72);font-size:14px}
.site-footer a:hover{color:var(--accent-lime)}
.footer-links{display:grid;gap:10px}
.footer-brand-text{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand-text b{color:#fff;font-size:17px;font-weight:700}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row a{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#fff;
  transition:all .2s ease;
}
.social-row a:hover{background:var(--accent-lime);color:var(--brand-900);transform:translateY(-2px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:18px 0;font-size:13px;color:rgba(255,255,255,.55)}
.footer-bottom .container-x{display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;align-items:center}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(8,26,19,.55);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;right:0;top:0;bottom:0;width:min(88vw,360px);
  background:var(--brand-900);color:#fff;padding:20px;
  transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-panel .drawer-title{color:#fff;font-size:17px;font-weight:700;margin-bottom:18px}
.drawer-items{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.drawer-item{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
  border-radius:14px;padding:14px 12px;color:#fff;display:flex;flex-direction:column;gap:8px;font-size:14px;
}
.drawer-item i{color:var(--accent-lime)}
.drawer-item.active{border-color:var(--accent-lime);background:rgba(198,242,78,.14)}
.drawer-close{
  position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);color:#fff;
}
.drawer-cta{display:grid;gap:10px;margin-top:22px}

/* roulang page: article */
:root{
  --brand-900:#0F3D2C;
  --brand-700:#14513A;
  --brand-500:#1E7A55;
  --brand-050:#EEF5EF;
  --accent-lime:#C6F24E;
  --accent-orange:#FF7A33;
  --bg-page:#F5F7F4;
  --bg-card:#FFFFFF;
  --line:#E3E9E2;
  --text-strong:#0E1A15;
  --text-body:#4A5A52;
  --text-muted:#7C8C84;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --sh-1:0 8px 24px rgba(15,61,44,.08);
  --sh-2:0 16px 40px rgba(15,61,44,.14);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--text-body);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p{margin:0;}
.nums{font-variant-numeric:tabular-nums;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid var(--accent-lime);outline-offset:2px;border-radius:6px;
}
.container-x{max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media (min-width:768px){.container-x{padding-left:24px;padding-right:24px;}}
@media (min-width:1024px){.container-x{padding-left:32px;padding-right:32px;}}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;padding:12px 0;
  transition:background .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 8px 24px rgba(15,61,44,.08);
}
.nav-card{
  display:flex;align-items:center;gap:14px;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:10px 14px;
  box-shadow:var(--sh-1);
}
.brand-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;flex:0 0 42px;border-radius:var(--r-sm);
  background:linear-gradient(135deg,var(--brand-900),var(--brand-500));
  color:#fff;font-weight:800;font-size:14px;letter-spacing:.5px;
}
.brand-text b{display:block;color:var(--text-strong);font-size:16px;line-height:1.25;font-weight:700;white-space:nowrap;}
.brand-text span{display:block;font-size:12px;color:var(--text-muted);line-height:1.5;white-space:nowrap;}
.nav-items{display:flex;align-items:center;gap:8px;margin-left:10px;margin-right:auto;}
.nav-item{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:var(--r-sm);
  font-size:14px;font-weight:600;color:var(--text-body);
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-item i{font-size:13px;color:var(--brand-500);}
.nav-item:hover{background:var(--brand-050);color:var(--brand-700);transform:translateY(-2px);}
.nav-item.active{background:var(--brand-050);color:var(--brand-700);}
.nav-item.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;
  border-radius:999px;background:var(--accent-lime);
}
.nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,opacity .2s ease;
  white-space:nowrap;
}
.btn-sm{padding:11px 18px;font-size:14px;}
.btn-lg{padding:15px 30px;font-size:16px;}
.btn-primary{background:var(--accent-orange);color:#fff;box-shadow:0 8px 20px rgba(255,122,51,.28);}
.btn-primary:hover{background:#FF8B4D;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,122,51,.34);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(255,122,51,.28);}
.btn-ghost{background:#fff;border-color:var(--brand-500);color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-050);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-ghost:active{transform:translateY(1px);}
.btn-line{background:transparent;border-color:var(--line);color:var(--brand-700);}
.btn-line:hover{background:#fff;border-color:var(--brand-500);transform:translateY(-2px);}
.btn:disabled,.btn[disabled]{opacity:.45;pointer-events:none;}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;color:var(--brand-700);
  font-size:17px;cursor:pointer;align-items:center;justify-content:center;
  transition:background .2s ease,transform .2s ease;
}
.burger:hover{background:var(--brand-050);transform:translateY(-1px);}
.mobile-panel{
  display:none;margin-top:10px;padding:16px;
  background:var(--brand-900);border-radius:var(--r-md);
  box-shadow:var(--sh-2);border:1px solid rgba(255,255,255,.08);
}
.mobile-panel.open{display:block;animation:fadeDown .22s ease;}
@keyframes fadeDown{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
.mobile-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
.mobile-item{
  display:flex;align-items:center;gap:8px;
  padding:13px 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);
  color:#fff;font-size:14px;font-weight:600;
  transition:background .2s ease,transform .2s ease,color .2s ease;
}
.mobile-item i{color:var(--accent-lime);font-size:13px;}
.mobile-item:hover{background:rgba(198,242,78,.14);transform:translateY(-2px);}
.mobile-item.active{background:rgba(198,242,78,.18);color:var(--accent-lime);}
.mobile-cta{display:flex;gap:10px;margin-top:14px;}
.mobile-cta .btn{flex:1;}

@media (max-width:1023px){
  .nav-items,.nav-cta{display:none;}
  .burger{display:inline-flex;margin-left:auto;}
}

/* ---------- Page shell ---------- */
.page-main{padding:26px 0 8px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-muted);margin-bottom:18px;
}
.breadcrumb a{color:var(--text-muted);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand-500);}
.breadcrumb .sep{color:#C9D4CC;}
.breadcrumb .current{color:var(--brand-700);font-weight:600;}

.reader{max-width:860px;margin:0 auto;}

/* ---------- Article head ---------- */
.article-head{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);
  display:grid;gap:22px;grid-template-columns:1fr;
}
@media (min-width:768px){.article-head{padding:38px;}}
@media (min-width:1024px){
  .article-head{grid-template-columns:minmax(0,1fr) 264px;align-items:center;}
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.7;
}
.badge-cat{background:var(--accent-lime);color:var(--brand-900);}
.badge-soft{background:var(--brand-050);color:var(--brand-700);}
.badge-outline{background:#fff;border:1px solid var(--line);color:var(--text-muted);}
.article-head h1{
  font-size:28px;line-height:1.35;font-weight:700;
  color:var(--text-strong);margin:14px 0 14px;
  letter-spacing:-.2px;
}
@media (min-width:768px){.article-head h1{font-size:36px;}}
@media (min-width:1024px){.article-head h1{font-size:40px;}}
.meta-row{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--text-muted);}
.meta-row span{display:inline-flex;align-items:center;gap:6px;}
.meta-row i{color:var(--brand-500);}
.share-row{display:flex;align-items:center;gap:10px;margin-top:18px;}
.share-row .share-label{font-size:13px;color:var(--text-muted);}
.share-row a,.share-row button{
  width:36px;height:36px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-050);color:var(--brand-700);border:1px solid transparent;
  font-size:14px;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.share-row a:hover,.share-row button:hover{background:var(--accent-lime);color:var(--brand-900);transform:translateY(-2px);}
.article-head-cover img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-md);border:1px solid var(--line);
}
@media (max-width:1023px){.article-head-cover{order:-1;}}
@media (max-width:1023px){.article-head-cover img{aspect-ratio:16/9;}}

/* ---------- Article body ---------- */
.article-body{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);
  margin-top:20px;font-size:17px;line-height:1.9;color:var(--text-body);
  word-break:break-word;overflow-wrap:anywhere;
}
@media (min-width:768px){.article-body{padding:44px 48px;}}
.article-body > :first-child{margin-top:0 !important;}
.article-body h2{
  position:relative;font-size:24px;line-height:1.5;font-weight:700;
  color:var(--text-strong);margin:40px 0 16px;padding-left:16px;
}
@media (min-width:768px){.article-body h2{font-size:27px;}}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:999px;background:var(--accent-lime);
}
.article-body h3{
  font-size:20px;line-height:1.6;font-weight:600;color:var(--text-strong);
  margin:28px 0 12px;
}
.article-body p{margin:0 0 18px;}
.article-body strong{color:var(--text-strong);font-weight:600;}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:4px;}
.article-body a:hover{color:var(--accent-orange);}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:24px;}
.article-body ul{list-style:none;padding-left:22px;}
.article-body ul > li{position:relative;margin:9px 0;}
.article-body ul > li::before{
  content:"";position:absolute;left:-18px;top:.72em;
  width:8px;height:8px;border-radius:3px;background:var(--accent-lime);
}
.article-body ol{list-style:decimal;}
.article-body ol > li{margin:9px 0;padding-left:4px;}
.article-body ol > li::marker{color:var(--brand-500);font-weight:700;}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;
  background:var(--brand-050);border-left:4px solid var(--brand-500);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--brand-700);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:16px;margin:24px auto;height:auto;
  border:1px solid var(--line);
}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  font-size:13px;color:var(--text-muted);text-align:center;margin-top:10px;
}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  margin:22px 0;font-size:15px;line-height:1.7;
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
}
.article-body th,.article-body td{
  padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);
}
.article-body th{background:var(--brand-050);color:var(--brand-700);font-weight:600;}
.article-body tbody tr:nth-child(even){background:#FAFCF9;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- Article footer blocks ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.tag-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--text-body);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag-chip:hover{border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-2px);}

.empty-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:56px 26px;text-align:center;box-shadow:var(--sh-1);
}
.empty-card .empty-icon{
  width:64px;height:64px;border-radius:20px;margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-050);color:var(--brand-500);font-size:24px;
}
.empty-card h1{font-size:26px;color:var(--text-strong);font-weight:700;margin-bottom:10px;}
.empty-card p{font-size:15px;color:var(--text-muted);margin-bottom:22px;}

.post-nav{
  display:grid;grid-template-columns:1fr;gap:16px;margin-top:26px;
}
@media (min-width:768px){.post-nav{grid-template-columns:repeat(2,minmax(0,1fr));}}
.post-nav a{
  display:flex;align-items:center;gap:14px;
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-md);padding:18px 20px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-nav a:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-500);}
.post-nav .pn-arrow{
  width:40px;height:40px;flex:0 0 40px;border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-050);color:var(--brand-700);
}
.post-nav .pn-label{font-size:12px;color:var(--text-muted);line-height:1.6;}
.post-nav .pn-title{
  font-size:15px;font-weight:600;color:var(--text-strong);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-nav .pn-next{text-align:right;justify-content:flex-end;}

/* ---------- Sections ---------- */
.section-block{margin-top:56px;}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:14px;margin-bottom:22px;
}
.section-head h2{
  font-size:24px;font-weight:700;color:var(--text-strong);line-height:1.4;
  position:relative;padding-left:16px;
}
@media (min-width:768px){.section-head h2{font-size:28px;}}
.section-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;
  border-radius:999px;background:var(--accent-lime);
}
.section-head .more-link{
  font-size:14px;font-weight:600;color:var(--brand-700);
  text-decoration:underline;text-underline-offset:4px;
  transition:color .2s ease;
}
.section-head .more-link:hover{color:var(--accent-orange);}

.card-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}

.card{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D3E0D6;}
.rec-thumb{position:relative;overflow:hidden;}
.rec-thumb img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  transition:transform .35s ease;
}
.card:hover .rec-thumb img{transform:scale(1.03);}
.rec-thumb .badge{position:absolute;left:12px;top:12px;box-shadow:0 4px 12px rgba(15,61,44,.16);}
.rec-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-body h3{
  font-size:17px;font-weight:600;color:var(--text-strong);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-body p{
  font-size:14px;color:var(--text-muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-meta{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);
  margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);
}
.rec-meta i{color:var(--brand-500);}

.back-row{display:flex;justify-content:center;margin-top:34px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:72px;}
.footer-top{padding:56px 0 42px;border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}}
.footer-brand-text{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand-text b{color:#fff;font-size:16px;font-weight:700;}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin:0 0 16px;letter-spacing:.3px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a,.footer-links span{
  color:rgba(255,255,255,.72);font-size:14px;line-height:1.7;
  transition:color .2s ease;
}
.footer-links a:hover{color:var(--accent-lime);}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-row a{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);
  color:#fff;transition:background .2s ease,color .2s ease,transform .2s ease;
}
.social-row a:hover{background:rgba(198,242,78,.16);color:var(--accent-lime);transform:translateY(-2px);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;}
.footer-bottom .container-x{
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

@media (max-width:519px){
  .article-head h1{font-size:25px;}
  .article-body{font-size:16px;padding:22px 18px;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .article-head{padding:22px 18px;}
  .share-row{flex-wrap:wrap;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0F3D2C;
  --brand-700:#14513A;
  --brand-500:#1E7A55;
  --brand-050:#EEF5EF;
  --accent-lime:#C6F24E;
  --accent-orange:#FF7A33;
  --bg-page:#F5F7F4;
  --bg-card:#FFFFFF;
  --line:#E3E9E2;
  --text-strong:#0E1A15;
  --text-body:#4A5A52;
  --text-muted:#7C8C84;
  --danger:#E5484D;
  --r-card:20px;
  --r-soft:14px;
  --r-pill:999px;
  --shadow-card:0 8px 24px rgba(15,61,44,.08);
  --shadow-lift:0 16px 40px rgba(15,61,44,.14);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-page);
  color:var(--text-body);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-strong);line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.nums{font-variant-numeric:tabular-nums}

.container-x{max-width:1200px;margin:0 auto;padding:0 32px}
@media (max-width:768px){.container-x{padding:0 20px}}
@media (max-width:520px){.container-x{padding:0 16px}}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;
  font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:15px 30px;font-size:16.5px}
.btn-primary{background:var(--accent-orange);color:#fff;box-shadow:0 10px 22px rgba(255,122,51,.28)}
.btn-primary:hover{background:#ff8c4d;transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,122,51,.34)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(255,122,51,.26)}
.btn-primary:focus-visible{outline:3px solid var(--accent-lime);outline-offset:2px}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:#fff;color:var(--brand-900);border-color:var(--brand-500)}
.btn-ghost:hover{background:var(--brand-050);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-ghost:focus-visible{outline:3px solid var(--accent-lime);outline-offset:2px}
.btn-lime{background:var(--accent-lime);color:#0E1A15}
.btn-lime:hover{background:#d3fa63;transform:translateY(-2px);box-shadow:0 14px 28px rgba(198,242,78,.32)}
.btn-lime:active{transform:translateY(1px)}
.btn-lime:focus-visible{outline:3px solid #fff;outline-offset:2px}

.text-link{color:var(--brand-700);text-decoration:underline;text-underline-offset:4px;font-weight:600;transition:color .18s}
.text-link:hover{color:var(--accent-orange)}
.text-link:focus-visible{outline:3px solid var(--accent-lime);outline-offset:3px;border-radius:6px}

/* ---------- 头部卡片化导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;padding:14px 0;
  background:transparent;
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{background:rgba(255,255,255,.9);box-shadow:0 8px 24px rgba(15,61,44,.08);backdrop-filter:blur(8px)}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:10px 14px;box-shadow:var(--shadow-card);
}
.brand-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;border-radius:var(--r-soft);padding:2px 4px}
.brand-logo:focus-visible{outline:3px solid var(--accent-lime);outline-offset:2px}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand-900),var(--brand-500));
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text b{color:var(--text-strong);font-size:15px;font-weight:700;letter-spacing:.2px}
.brand-text span{color:var(--text-muted);font-size:11.5px}

.nav-items{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;padding:9px 14px;border-radius:var(--r-soft);
  font-size:14.5px;color:var(--text-body);position:relative;
  transition:background .2s ease,transform .2s ease,color .2s ease;
}
.nav-item i{color:var(--brand-500);font-size:13px;transition:color .2s ease}
.nav-item:hover{background:var(--brand-050);transform:translateY(-2px);color:var(--brand-700)}
.nav-item:focus-visible{outline:3px solid var(--accent-lime);outline-offset:2px}
.nav-item.active{background:var(--brand-050);color:var(--brand-900);font-weight:600}
.nav-item.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;
  border-radius:var(--r-pill);background:var(--accent-lime);
}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.burger{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:var(--r-soft);
  border:1px solid var(--line);background:#fff;color:var(--brand-900);font-size:16px;cursor:pointer;
  transition:background .2s,transform .2s;
}
.burger:hover{background:var(--brand-050)}
.burger:focus-visible{outline:3px solid var(--accent-lime);outline-offset:2px}

@media (max-width:1024px){
  .nav-card{flex-wrap:wrap;row-gap:0}
  .nav-items,.nav-cta{display:none}
  .burger{display:inline-flex;align-items:center;justify-content:center}
  .nav-card.open .nav-items{
    display:flex;flex-direction:column;width:100%;order:3;gap:6px;
    margin-top:12px;padding:14px 14px 8px;background:var(--brand-900);
    border-radius:18px 18px 0 0;
  }
  .nav-card.open .nav-cta{
    display:flex;width:100%;order:4;gap:10px;
    padding:0 14px 16px;background:var(--brand-900);border-radius:0 0 18px 18px;
  }
  .nav-card.open .nav-item{color:rgba(255,255,255,.86);background:rgba(255,255,255,.07);padding:12px 14px}
  .nav-card.open .nav-item i{color:var(--accent-lime)}
  .nav-card.open .nav-item:hover{background:rgba(255,255,255,.15);color:#fff;transform:none}
  .nav-card.open .nav-item.active{background:rgba(198,242,78,.18);color:#fff}
  .nav-card.open .nav-item.active::after{display:none}
  .nav-card.open .nav-cta .btn{flex:1}
  .nav-card.open .nav-cta .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
  .nav-card.open .nav-cta .btn-ghost:hover{background:rgba(255,255,255,.12)}
}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0}
@media (max-width:768px){.section{padding:52px 0}}
.sec-head{max-width:720px;margin-bottom:36px}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.6px;color:var(--brand-500);
  background:var(--brand-050);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;
}
.h2{font-size:30px;font-weight:700;position:relative;padding-left:16px}
.h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:5px;
  border-radius:var(--r-pill);background:var(--accent-lime);
}
.h3{font-size:20px;font-weight:600}
.lead{font-size:17px;color:var(--text-body);line-height:1.9;margin-top:14px}
@media (max-width:768px){.h2{font-size:24px}.lead{font-size:16px}}

.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);
  padding:5px 13px;font-size:12.5px;font-weight:600;
  background:var(--brand-050);color:var(--brand-700);border:1px solid var(--line);
}
.badge-lime{background:rgba(198,242,78,.22);color:#3C5A12;border-color:rgba(198,242,78,.6)}
.badge-orange{background:rgba(255,122,51,.12);color:#B44A11;border-color:rgba(255,122,51,.35)}
.badge-dark{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.18)}

.card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}

/* ---------- 分类小 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;padding:22px 0 68px;
  background:linear-gradient(165deg,#E7F2E9 0%,#F6FAF5 55%,#FFFFFF 100%);
}
.cat-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.35),rgba(198,242,78,0) 66%);pointer-events:none;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:26px;position:relative;z-index:2}
.crumbs a{color:var(--text-muted);transition:color .18s}
.crumbs a:hover{color:var(--brand-500)}
.crumbs .sep{color:#C3CEC5}
.crumbs .cur{color:var(--brand-700);font-weight:600}

.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;position:relative;z-index:2}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.cat-h1{font-size:44px;font-weight:700;letter-spacing:-.5px;line-height:1.22}
.cat-h1 em{font-style:normal;color:var(--brand-500)}
.cat-sub{margin-top:16px;font-size:17.5px;color:var(--text-body);max-width:30em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-media{position:relative}
.hero-media img{
  width:100%;height:320px;object-fit:cover;border-radius:24px;
  border:1px solid rgba(255,255,255,.6);box-shadow:var(--shadow-lift);
}
.hero-media .float-tag{
  position:absolute;left:-14px;bottom:22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-soft);padding:12px 16px;box-shadow:var(--shadow-card);display:flex;gap:12px;align-items:center;
}
.hero-media .float-tag b{font-size:22px;color:var(--brand-900)}
.hero-media .float-tag span{font-size:12.5px;color:var(--text-muted);display:block;line-height:1.5}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media img{height:260px}
  .cat-h1{font-size:34px}
}
@media (max-width:520px){
  .cat-hero{padding:16px 0 46px}
  .cat-h1{font-size:28px}
  .cat-sub{font-size:16px}
  .hero-media .float-tag{left:12px;bottom:12px;padding:10px 13px}
}

/* ---------- 数据徽章带 ---------- */
.stats-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.stat-cell{background:#fff;padding:24px 22px;transition:background .22s}
.stat-cell:hover{background:var(--brand-050)}
.stat-cell .num{font-size:30px;font-weight:700;color:var(--brand-900);letter-spacing:-.5px;line-height:1.2}
.stat-cell .num small{font-size:15px;font-weight:600;color:var(--brand-500);margin-left:3px}
.stat-cell .cap{font-size:13px;color:var(--text-muted);margin-top:6px}
@media (max-width:768px){.stats-band{grid-template-columns:repeat(2,1fr)}.stat-cell{padding:18px 16px}.stat-cell .num{font-size:24px}}

/* ---------- 左文右图区块 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split.rev .split-media{order:2}
.split-media img{width:100%;height:340px;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--shadow-card);border:1px solid var(--line)}
.split-copy p + p{margin-top:16px}
.check-list{margin-top:24px;display:grid;gap:12px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;background:var(--brand-050);
  border:1px solid #DFEAE1;border-radius:var(--r-soft);padding:14px 16px;font-size:15.5px;color:var(--brand-900);
}
.check-list li i{color:var(--brand-500);margin-top:5px;font-size:13px}
@media (max-width:1024px){
  .split{grid-template-columns:1fr;gap:30px}
  .split.rev .split-media{order:0}
  .split-media img{height:250px}
}

/* ---------- 编号步骤 ---------- */
.steps{margin-top:38px;display:grid;gap:16px}
.step{
  display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow-card);transition:transform .22s,box-shadow .22s,border-color .22s;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:#D2E1D5}
.step-num{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-900),var(--brand-500));
  color:#fff;font-size:19px;font-weight:700;font-variant-numeric:tabular-nums;
}
.step h3{font-size:19px;font-weight:600;margin-bottom:6px}
.step p{font-size:15.5px;color:var(--text-body)}
.step .step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
@media (max-width:520px){
  .step{grid-template-columns:1fr;gap:14px;padding:20px}
}

/* ---------- 方式卡片 ---------- */
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:36px}
.method-card{padding:26px 24px;display:flex;flex-direction:column;gap:12px}
.method-card .ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-050);color:var(--brand-500);font-size:18px;
}
.method-card .num{font-size:28px;font-weight:700;color:var(--brand-900);letter-spacing:-.5px}
.method-card .num small{font-size:14px;color:var(--text-muted);font-weight:500;margin-left:4px}
.method-card p{font-size:15px;color:var(--text-body)}
.method-card ul{display:grid;gap:8px;font-size:14.5px;color:var(--text-muted);margin-top:2px}
.method-card ul li{display:flex;gap:9px;align-items:flex-start}
.method-card ul li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--accent-lime);margin-top:9px;flex-shrink:0}
@media (max-width:1024px){.method-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.method-grid{grid-template-columns:1fr}}

/* ---------- 排查条目 ---------- */
.trouble-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);padding:10px 26px;margin-top:34px}
.trouble{display:grid;grid-template-columns:230px 1fr;gap:26px;padding:22px 0;border-bottom:1px dashed #E7EDE8}
.trouble:last-child{border-bottom:0}
.trouble .q{font-size:16.5px;font-weight:600;color:var(--text-strong);display:flex;gap:10px;align-items:flex-start}
.trouble .q i{color:var(--accent-orange);margin-top:5px;font-size:14px}
.trouble .a{font-size:15.5px;color:var(--text-body)}
.trouble .a b{color:var(--brand-700)}
@media (max-width:768px){.trouble{grid-template-columns:1fr;gap:8px}.trouble-wrap{padding:6px 18px}}

/* ---------- FAQ ---------- */
.faq-list{margin-top:34px;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .22s,box-shadow .22s}
.faq-item:hover{box-shadow:var(--shadow-card)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:18px 22px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:600;color:var(--text-strong);transition:background .2s,color .2s;
}
.faq-q:hover{background:var(--brand-050)}
.faq-q:focus-visible{outline:3px solid var(--accent-lime);outline-offset:-3px}
.faq-q .arrow{color:var(--brand-500);transition:transform .28s ease;flex-shrink:0}
.faq-item.open{border-color:#CFE3D4}
.faq-item.open .faq-q{color:var(--brand-700)}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 22px 0 25px;border-left:3px solid transparent}
.faq-item.open .faq-a{max-height:420px;padding-bottom:20px;border-left-color:var(--accent-lime)}
.faq-a p{font-size:15.5px;color:var(--text-body);line-height:1.85;max-width:68ch}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;
  background:linear-gradient(135deg,var(--brand-900) 0%,var(--brand-700) 52%,var(--brand-500) 100%);
  padding:46px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 24px 48px rgba(15,61,44,.22);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;
  background:repeating-linear-gradient(135deg,rgba(198,242,78,.22) 0 12px,rgba(198,242,78,0) 12px 28px);
  transform:rotate(8deg);pointer-events:none;
}
.cta-band h2{color:#fff;font-size:28px;font-weight:700;position:relative;z-index:2}
.cta-band p{color:rgba(255,255,255,.75);font-size:15.5px;margin-top:10px;max-width:44em;position:relative;z-index:2}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}
@media (max-width:768px){.cta-band{padding:32px 24px}.cta-band h2{font-size:22px}}

/* ---------- 推荐位 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:34px}
.rec-card{overflow:hidden;display:flex;flex-direction:column}
.rec-card .thumb{position:relative;overflow:hidden;border-radius:16px;margin:12px 12px 0}
.rec-card .thumb img{width:100%;height:170px;object-fit:cover;border-radius:16px;transition:transform .35s ease}
.rec-card:hover .thumb img{transform:scale(1.03)}
.rec-card .thumb .tag{position:absolute;left:12px;top:12px}
.rec-card .body{padding:18px 20px 22px}
.rec-card .body h3{font-size:17.5px;font-weight:600;line-height:1.5}
.rec-card .body p{font-size:14.5px;color:var(--text-muted);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-card .foot{display:flex;justify-content:space-between;align-items:center;margin-top:14px;font-size:13px;color:var(--text-muted)}
@media (max-width:1024px){.rec-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.rec-grid{grid-template-columns:1fr}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:20px}
.footer-top{padding:64px 0 44px;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand-text{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand-text .brand-mark{background:linear-gradient(135deg,#14513A,#1E7A55)}
.footer-brand-text b{color:#fff;font-size:16px;font-weight:700}
.site-footer h4{color:#fff;font-size:15.5px;font-weight:600;margin-bottom:16px}
.footer-links{display:grid;gap:11px}
.footer-links a,.footer-links span{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s,transform .2s;display:inline-block}
.footer-links a:hover{color:var(--accent-lime);transform:translateX(3px)}
.footer-links a:focus-visible{outline:3px solid var(--accent-lime);outline-offset:3px;border-radius:6px}
.social-row{display:flex;gap:10px;margin-top:20px}
.social-row a{
  width:38px;height:38px;border-radius:var(--r-soft);display:grid;place-items:center;
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.85);border:1px solid rgba(255,255,255,.1);
  transition:background .2s,color .2s,transform .2s;
}
.social-row a:hover{background:var(--accent-lime);color:#0E1A15;transform:translateY(-2px)}
.social-row a:focus-visible{outline:3px solid var(--accent-lime);outline-offset:2px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0}
.footer-bottom .container-x{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55)}
@media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;gap:28px}.footer-top{padding:48px 0 32px}}

/* ---------- 动效辅助 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --brand-900:#0F3D2C;
  --brand-700:#14513A;
  --brand-500:#1E7A55;
  --brand-050:#EEF5EF;
  --accent-lime:#C6F24E;
  --accent-orange:#FF7A33;
  --bg-page:#F5F7F4;
  --bg-card:#FFFFFF;
  --line:#E3E9E2;
  --text-strong:#0E1A15;
  --text-body:#4A5A52;
  --text-muted:#7C8C84;
  --danger:#E5484D;
  --radius-lg:24px;
  --radius-card:20px;
  --radius-sm:14px;
  --shadow-1:0 8px 24px rgba(15,61,44,.08);
  --shadow-2:0 16px 40px rgba(15,61,44,.14);
  --grad-brand:linear-gradient(135deg,#0F3D2C 0%,#1E7A55 55%,#C6F24E 130%);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html body{
  margin:0;
  background:var(--bg-page);
  color:var(--text-body);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button{font-family:inherit;cursor:pointer;}
body.no-scroll{overflow:hidden;}

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (max-width:640px){
  .container-x{padding:0 16px;}
}

/* ---------- 按钮系统 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  padding:12px 24px;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
  line-height:1.2;
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-primary{
  background:var(--accent-orange);
  color:#fff;
  box-shadow:0 8px 20px rgba(255,122,51,.28);
}
.btn-primary:hover{
  background:#ff8b4d;
  transform:translateY(-2px);
  box-shadow:0 14px 28px rgba(255,122,51,.34);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(255,122,51,.28);}
.btn-ghost{
  background:#fff;
  color:var(--brand-700);
  border-color:var(--line);
}
.btn-ghost:hover{
  border-color:var(--brand-500);
  color:var(--brand-500);
  transform:translateY(-2px);
  box-shadow:var(--shadow-1);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-lime{
  background:var(--accent-lime);
  color:var(--brand-900);
  box-shadow:0 8px 20px rgba(198,242,78,.3);
}
.btn-lime:hover{background:#d3f76b;transform:translateY(-2px);}
.btn:focus-visible,
a:focus-visible,
summary:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible{
  outline:3px solid rgba(198,242,78,.9);
  outline-offset:2px;
}
.btn[disabled]{opacity:.45;pointer-events:none;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:14px 0;
  transition:background-color .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
}
.site-header.scrolled{
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(10px);
  box-shadow:0 8px 24px rgba(15,61,44,.08);
}
.nav-card{
  display:flex;
  align-items:center;
  gap:16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:10px 14px;
  box-shadow:var(--shadow-1);
}
.brand-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;
  border-radius:var(--radius-sm);
  background:var(--grad-brand);
  color:#fff;
  font-weight:700;
  font-size:14px;
  letter-spacing:.5px;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:15.5px;color:var(--text-strong);font-weight:700;letter-spacing:.2px;}
.brand-text span{font-size:11.5px;color:var(--text-muted);}
.nav-items{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
  justify-content:center;
}
.nav-item{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 15px;
  border-radius:var(--radius-sm);
  font-size:14.5px;
  color:var(--text-body);
  border:1px solid transparent;
  transition:background-color .22s ease,transform .22s ease,color .22s ease;
}
.nav-item i{font-size:13px;color:var(--brand-500);}
.nav-item:hover{background:var(--brand-050);color:var(--brand-700);transform:translateY(-2px);}
.nav-item.active{
  background:var(--brand-050);
  color:var(--brand-700);
  font-weight:600;
}
.nav-item.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:4px;
  transform:translateX(-50%);
  width:26px;
  height:3px;
  border-radius:999px;
  background:var(--accent-lime);
}
.nav-cta{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.burger{
  display:none;
  width:42px;height:42px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand-700);
  align-items:center;justify-content:center;
  font-size:16px;
  transition:background-color .2s ease,transform .2s ease;
}
.burger:hover{background:var(--brand-050);transform:translateY(-2px);}

/* 移动端抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:120;
  visibility:hidden;
  pointer-events:none;
}
.drawer.open{visibility:visible;pointer-events:auto;}
.drawer-mask{
  position:absolute;
  inset:0;
  background:rgba(14,26,21,.45);
  opacity:0;
  transition:opacity .28s ease;
}
.drawer.open .drawer-mask{opacity:1;}
.drawer-panel{
  position:absolute;
  top:0;right:0;
  width:min(340px,86vw);
  height:100%;
  background:linear-gradient(160deg,#0F3D2C 0%,#14513A 100%);
  padding:22px 20px 32px;
  display:flex;
  flex-direction:column;
  gap:18px;
  transform:translateX(100%);
  transition:transform .3s cubic-bezier(.4,.1,.2,1);
  overflow-y:auto;
}
.drawer.open .drawer-panel{transform:translateX(0);}
.drawer-top{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:15px;
  padding-bottom:14px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer-top b{flex:1;font-weight:700;}
.drawer-close{
  width:36px;height:36px;
  border-radius:12px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:rgba(198,242,78,.18);color:var(--accent-lime);}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.drawer-card{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:14px 12px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  color:rgba(255,255,255,.86);
  font-size:13.5px;
  line-height:1.5;
  transition:background-color .2s ease,transform .2s ease;
}
.drawer-card i{font-size:15px;color:var(--accent-lime);}
.drawer-card:hover{background:rgba(198,242,78,.14);transform:translateY(-2px);}
.drawer-card.active{background:rgba(198,242,78,.2);color:#fff;border-color:rgba(198,242,78,.5);}
.drawer-cta{width:100%;}

/* ---------- 分类页 Hero ---------- */
.cat-hero-wrap{padding-top:26px;}
.cat-hero{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(135deg,#EEF5EF 0%,#FFFFFF 62%);
  box-shadow:var(--shadow-1);
  padding:42px;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:36px;
  align-items:center;
  min-height:300px;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:right center;
  opacity:.07;
  pointer-events:none;
}
.cat-hero::after{
  content:"";
  position:absolute;
  right:-90px;
  top:-70px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.35),rgba(198,242,78,0) 70%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;}
.breadcrumb{font-size:13px;color:var(--text-muted);margin-bottom:16px;}
.breadcrumb ol{list-style:none;margin:0;padding:0;}
.breadcrumb a{color:var(--text-muted);}
.breadcrumb a:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:4px;}
.breadcrumb .sep{color:#B7C4BC;}
.breadcrumb .current{color:var(--brand-700);font-weight:600;}
.cat-h1{
  font-size:42px;
  line-height:1.28;
  font-weight:700;
  color:var(--text-strong);
  margin:0 0 14px;
  letter-spacing:-.5px;
}
.cat-sub{
  font-size:16.5px;
  color:var(--text-body);
  margin:0 0 22px;
  max-width:34em;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border-radius:999px;
  padding:6px 13px;
  font-size:12.5px;
  font-weight:600;
  background:var(--brand-050);
  color:var(--brand-700);
  border:1px solid #DDE9DF;
}
.tag-lime{background:rgba(198,242,78,.28);color:#3C5A1E;border-color:rgba(198,242,78,.7);}
.tag-orange{background:rgba(255,122,51,.12);color:#B24A15;border-color:rgba(255,122,51,.3);}
.cat-hero-media{position:relative;z-index:2;}
.cat-hero-media img{
  width:100%;
  height:250px;
  object-fit:cover;
  border-radius:16px;
  box-shadow:var(--shadow-2);
}
.hero-figure-cap{
  font-size:12.5px;
  color:var(--text-muted);
  margin-top:10px;
  text-align:right;
}

/* ---------- 数据徽章带 ---------- */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:24px;
}
.stat-card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:16px;
  padding:18px 20px;
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.stat-num{
  font-size:28px;
  font-weight:700;
  color:var(--brand-900);
  line-height:1.15;
  font-variant-numeric:tabular-nums;
  display:flex;
  align-items:baseline;
  gap:6px;
}
.stat-num small{font-size:13px;font-weight:600;color:var(--brand-500);}
.stat-label{font-size:13px;color:var(--text-muted);margin-top:6px;line-height:1.6;}

/* ---------- 板块 ---------- */
.sec{margin-top:76px;}
.sec-head{max-width:720px;margin-bottom:28px;}
.sec-h2{
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  color:var(--text-strong);
  margin:0 0 12px;
  letter-spacing:-.3px;
  position:relative;
  padding-left:16px;
}
.sec-h2::before{
  content:"";
  position:absolute;
  left:0;top:8px;bottom:8px;
  width:4px;
  border-radius:999px;
  background:var(--accent-lime);
}
.sec-desc{font-size:16px;color:var(--text-body);margin:0;max-width:62ch;}

/* ---------- 深色分节卡 ---------- */
.panel-dark{
  position:relative;
  overflow:hidden;
  background:linear-gradient(135deg,#0F3D2C 0%,#14513A 100%);
  border-radius:var(--radius-lg);
  padding:34px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
  color:rgba(255,255,255,.78);
}
.panel-dark::after{
  content:"";
  position:absolute;
  top:-40px;right:-40px;
  width:240px;height:240px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.22),rgba(198,242,78,0) 70%);
  pointer-events:none;
}
.panel-dark .sec-h2{color:#fff;}
.panel-dark .sec-desc{color:rgba(255,255,255,.74);}
.panel-dark p{color:rgba(255,255,255,.76);}
.panel-dark .sec-h2::before{background:var(--accent-lime);}

/* 时间轴 */
.timeline{position:relative;margin-top:28px;}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;top:10px;bottom:10px;
  width:2px;
  background:linear-gradient(180deg,rgba(198,242,78,.75),rgba(198,242,78,.06));
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:40px 1fr;
  gap:18px;
  padding-bottom:24px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-num{
  width:40px;height:40px;
  border-radius:999px;
  background:#0B2E21;
  border:2px solid rgba(198,242,78,.65);
  color:var(--accent-lime);
  font-weight:700;
  font-size:14px;
  display:flex;align-items:center;justify-content:center;
  position:relative;z-index:2;
  font-variant-numeric:tabular-nums;
}
.tl-body h3{
  font-size:18px;
  font-weight:600;
  color:#fff;
  margin:6px 0 6px;
}
.tl-body p{
  margin:0;
  font-size:14.5px;
  line-height:1.75;
  color:rgba(255,255,255,.72);
}
.tl-time{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12.5px;
  font-weight:600;
  color:var(--brand-900);
  background:var(--accent-lime);
  border-radius:999px;
  padding:3px 10px;
  margin-left:8px;
  font-variant-numeric:tabular-nums;
  vertical-align:middle;
}

/* ---------- 序号徽章网格 ---------- */
.num-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
  margin-top:26px;
}
.num-grid.four{grid-template-columns:repeat(4,1fr);}
.num-card{
  position:relative;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  display:flex;
  flex-direction:column;
}
.num-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D2E3D6;}
.num-badge{
  width:40px;height:40px;
  border-radius:12px;
  background:var(--brand-050);
  color:var(--brand-700);
  font-weight:700;
  font-size:15px;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.num-card.best{border-top:4px solid var(--accent-lime);}
.num-card.best .num-badge{background:var(--brand-900);color:var(--accent-lime);}
.card-h3{
  font-size:20px;
  font-weight:600;
  color:var(--text-strong);
  margin:0 0 6px;
  line-height:1.45;
}
.card-note{font-size:13px;color:var(--text-muted);margin:0 0 14px;}
.price-line{
  display:flex;
  align-items:baseline;
  gap:6px;
  margin:0 0 16px;
  font-variant-numeric:tabular-nums;
}
.price-line b{font-size:34px;font-weight:700;color:var(--brand-900);line-height:1;}
.price-line span{font-size:13px;color:var(--text-muted);}
.feat-list{list-style:none;margin:0 0 20px;padding:0;display:flex;flex-direction:column;gap:10px;}
.feat-list li{
  display:flex;
  align-items:flex-start;
  gap:9px;
  font-size:14.5px;
  color:var(--text-body);
  line-height:1.65;
}
.feat-list li i{
  color:var(--brand-500);
  font-size:13px;
  margin-top:5px;
  flex-shrink:0;
}
.num-card .btn{margin-top:auto;}

/* ---------- 对比卡 ---------- */
.cmp-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-top:28px;
  align-items:start;
}
.cmp-col{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .28s ease,box-shadow .28s ease;
}
.cmp-col:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.cmp-col.reco{
  border-top:4px solid var(--accent-lime);
  transform:translateY(-8px);
  box-shadow:var(--shadow-2);
}
.cmp-col.reco:hover{transform:translateY(-12px);}
.cmp-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
  margin-bottom:6px;
}
.cmp-head h3{font-size:17px;font-weight:600;color:var(--text-strong);margin:0;}
.cmp-price{font-size:20px;font-weight:700;color:var(--brand-500);font-variant-numeric:tabular-nums;}
.cmp-price small{font-size:12px;color:var(--text-muted);font-weight:500;}
.cmp-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
}
.cmp-row:last-of-type{border-bottom:0;}
.cmp-row span:first-child{color:var(--text-muted);}
.cmp-row span:last-child{color:var(--text-strong);font-weight:600;text-align:right;}
.cmp-col .btn{margin-top:16px;width:100%;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;margin-top:26px;}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:#CFE0D4;box-shadow:var(--shadow-1);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  font-size:16px;
  font-weight:600;
  color:var(--text-strong);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary i{color:var(--brand-500);font-size:14px;transition:transform .25s ease;flex-shrink:0;}
.faq-item[open]{border-left:3px solid var(--accent-lime);}
.faq-item[open] summary{color:var(--brand-700);}
.faq-item[open] summary i{transform:rotate(180deg);}
.faq-body{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-body);
  max-width:68ch;
}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  background:linear-gradient(135deg,#0F3D2C 0%,#14513A 100%);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
  padding:32px 34px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(198,242,78,.10) 0 2px,rgba(198,242,78,0) 2px 16px);
  opacity:.9;
  pointer-events:none;
}
.cta-left{position:relative;z-index:2;max-width:62ch;}
.cta-left h2{
  font-size:24px;
  font-weight:700;
  color:#fff;
  margin:0 0 8px;
}
.cta-left p{margin:0;font-size:14.5px;color:rgba(255,255,255,.75);}
.cta-band .btn{position:relative;z-index:2;flex-shrink:0;}

/* ---------- 推荐卡 ---------- */
.rec-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
  margin-top:26px;
}
.rec-card{
  display:flex;
  flex-direction:column;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .28s ease,box-shadow .28s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.rec-cover{position:relative;overflow:hidden;}
.rec-cover img{
  width:100%;
  height:190px;
  object-fit:cover;
  border-radius:0;
  transition:transform .45s ease;
}
.rec-card:hover .rec-cover img{transform:scale(1.03);}
.rec-badge{
  position:absolute;
  left:14px;top:14px;
  background:rgba(15,61,44,.9);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:5px 12px;
  border-radius:999px;
}
.rec-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.rec-body h3{
  font-size:18px;
  font-weight:600;
  color:var(--text-strong);
  margin:0 0 8px;
  line-height:1.5;
}
.rec-body p{
  font-size:14.5px;
  color:var(--text-body);
  margin:0 0 16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rec-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-muted);
  padding-top:14px;
  border-top:1px solid var(--line);
}
.rec-link{color:var(--brand-500);font-weight:600;}
.rec-link:hover{color:var(--accent-orange);text-decoration:underline;text-underline-offset:4px;}
.nums{font-variant-numeric:tabular-nums;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  margin-top:88px;
}
.footer-top{padding:56px 0 44px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:34px;
}
.site-footer h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin:0 0 16px;
  letter-spacing:.3px;
}
.site-footer p{color:rgba(255,255,255,.72);line-height:1.8;margin:0;}
.footer-brand-text{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;transition:color .2s ease,transform .2s ease;}
.footer-links a:hover{color:var(--accent-lime);transform:translateX(3px);}
.footer-links span{color:rgba(255,255,255,.72);}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-row a{
  width:38px;height:38px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;
  color:#fff;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.social-row a:hover{background:rgba(198,242,78,.16);color:var(--accent-lime);transform:translateY(-2px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:18px 0;
}
.footer-bottom .container-x{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-items,.nav-cta{display:none;}
  .burger{display:flex;}
  .nav-card{justify-content:space-between;}
  .cat-h1{font-size:34px;}
  .cat-hero{padding:32px;grid-template-columns:1fr;gap:26px;}
  .cat-hero-media img{height:220px;}
  .stat-band{grid-template-columns:repeat(2,1fr);}
  .num-grid,.num-grid.four{grid-template-columns:repeat(2,1fr);}
  .cmp-grid{grid-template-columns:1fr;gap:18px;}
  .cmp-col.reco{transform:none;}
  .cmp-col.reco:hover{transform:translateY(-4px);}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .sec-h2{font-size:26px;}
}
@media (max-width:768px){
  html body{font-size:16px;}
  .cat-hero{padding:26px 22px;border-radius:20px;}
  .cat-h1{font-size:29px;line-height:1.34;}
  .cat-sub{font-size:15.5px;}
  .sec{margin-top:52px;}
  .sec-h2{font-size:24px;padding-left:14px;}
  .panel-dark{padding:24px 20px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .cta-band .btn{width:100%;}
  .rec-grid{grid-template-columns:1fr;}
  .num-grid,.num-grid.four{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:14px;}
  .stat-num{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{margin-top:56px;}
}
@media (max-width:520px){
  .brand-text span{display:none;}
  .cat-hero-media img{height:180px;}
  .stat-band{grid-template-columns:1fr;}
  .tl-item{grid-template-columns:34px 1fr;gap:14px;}
  .tl-num{width:34px;height:34px;font-size:13px;}
  .timeline::before{left:16px;}
  .btn{width:100%;}
  .nav-cta .btn,.cta-band .btn,.rec-card .btn{width:auto;}
}