/* roulang page: index */
:root{
  --brand:#0F6E5C;
  --brand-dark:#083A31;
  --brand-soft:#E4F2EE;
  --accent:#D8F135;
  --warn:#FF7A3D;
  --bg:#F7F7F4;
  --surface:#FFFFFF;
  --surface-alt:#F0F2EE;
  --text:#14201C;
  --text-muted:#5A6B65;
  --line:#E3E7E3;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(16,24,20,.06);
  --shadow-md:0 8px 24px rgba(16,24,20,.08);
  --shadow-lg:0 20px 48px rgba(16,24,20,.12);
  --font-sans:-apple-system,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  padding-top:64px;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .15s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{color:var(--brand-dark);letter-spacing:-.01em;margin:0;}
h1{font-size:clamp(28px,4vw,46px);line-height:1.25;font-weight:700;}
h2{font-size:clamp(23px,2.4vw,31px);line-height:1.35;font-weight:700;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
.container{max-width:1240px;padding-left:24px;padding-right:24px;}
.section{padding:92px 0;}
.section-alt{background:var(--surface-alt);}
.section-soft{background:var(--brand-soft);}
.section-head{margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--radius-pill);
  padding:5px 14px;margin-bottom:14px;
}
.section-head p{color:var(--text-muted);font-size:15px;margin:10px 0 0;max-width:640px;}
.head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;}

/* ---------- buttons ---------- */
.btn{font-family:var(--font-sans);font-weight:600;border-radius:var(--radius-btn);border:1px solid transparent;
  transition:background-color .16s ease,color .16s ease,box-shadow .16s ease,transform .16s ease;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 22px;height:46px;font-size:15px;}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;box-shadow:none;}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:#0c5c4d;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#14201C;}
.btn-accent:hover{background:#c9e22c;color:#14201C;transform:translateY(-1px);}
.btn-light-outline{background:transparent;border-color:rgba(255,255,255,.4);color:#fff;}
.btn-light-outline:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-sm{height:38px;font-size:14px;padding:0 16px;}
.btn-block{width:100%;}

/* ---------- badges ---------- */
.badge-pill{display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand);line-height:1.6;}
.badge-lime{background:var(--accent);color:#14201C;}
.badge-warn{background:#FFF1E9;color:#C1500F;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;height:64px;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.site-header .container{height:100%;display:flex;align-items:center;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--brand);position:relative;flex-shrink:0;}
.brand-mark::after{content:"";position:absolute;right:-4px;bottom:-4px;width:16px;height:16px;border-radius:5px;background:var(--accent);}
.brand-text{font-size:18px;font-weight:700;color:var(--brand-dark);letter-spacing:-.01em;}
.brand:hover .brand-text{color:var(--brand);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px;}
.main-nav a{
  position:relative;font-size:15px;color:var(--text);padding:8px 12px;border-radius:8px;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav a:hover{color:var(--brand);}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1);}
.main-nav a.active{color:var(--brand-dark);font-weight:600;}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.cmd-search{
  display:flex;align-items:center;gap:10px;height:42px;padding:0 12px 0 16px;
  background:var(--surface-alt);border:1px solid var(--line);border-radius:var(--radius-pill);
  min-width:250px;transition:border-color .16s ease,background-color .16s ease;
}
.cmd-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(15,110,92,.08);}
.cmd-search i{color:var(--text-muted);font-size:14px;}
.cmd-search input{border:0;background:transparent;outline:none;font-size:14px;flex:1;min-width:0;color:var(--text);font-family:var(--font-sans);}
.cmd-search input::placeholder{color:#93A29C;}
.cmd-kbd{font-size:11px;color:var(--text-muted);border:1px solid var(--line);background:#fff;border-radius:6px;padding:2px 6px;line-height:1.4;}
.icon-btn{
  width:42px;height:42px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;
  color:var(--text);display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  transition:border-color .16s ease,color .16s ease,transform .16s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;color:var(--brand-dark);font-size:18px;}
.mobile-panel{
  display:none;position:fixed;top:64px;left:0;right:0;bottom:0;background:#fff;z-index:1029;
  padding:20px 24px 32px;overflow-y:auto;border-top:1px solid var(--line);
}
.mobile-panel.open{display:block;}
.mobile-panel .cmd-search{min-width:0;width:100%;margin-bottom:18px;}
.mobile-panel nav a{display:block;padding:14px 4px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line);}
.mobile-panel nav a.active{color:var(--brand);font-weight:600;}

/* ---------- hero ---------- */
.hero{
  position:relative;background:var(--brand-dark);color:#fff;overflow:hidden;
  padding:0;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.30;
}
.hero-grid-overlay{
  position:absolute;inset:0;opacity:.07;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero .container{position:relative;z-index:2;}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;min-height:560px;padding:64px 0;}
.hero h1{color:#fff;margin-bottom:18px;}
.hero h1 .hl{color:var(--accent);}
.hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:520px;margin-bottom:28px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px;}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.18);padding-top:22px;}
.hero-stats .stat-num{font-size:22px;font-weight:700;color:var(--accent);line-height:1.3;}
.hero-stats .stat-label{font-size:13px;color:rgba(255,255,255,.7);}
.hero-figure{border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-lg);position:relative;}
.hero-figure img{width:100%;height:400px;object-fit:cover;}
.hero-figure .fig-tag{
  position:absolute;left:18px;bottom:18px;background:#fff;color:var(--brand-dark);
  border-radius:var(--radius-pill);padding:8px 16px;font-size:13px;font-weight:600;box-shadow:var(--shadow-md);
}

/* ---------- category strip ---------- */
.cat-strip{padding:36px 0;background:var(--surface);border-bottom:1px solid var(--line);}
.cat-scroll{display:flex;gap:12px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none;}
.cat-scroll::-webkit-scrollbar{display:none;}
.cat-chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:9px;height:46px;padding:0 20px;
  background:var(--surface-alt);border:1px solid var(--line);border-radius:var(--radius-pill);
  color:var(--text);font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:border-color .16s ease,background-color .16s ease,color .16s ease,transform .16s ease;
}
.cat-chip i{color:var(--brand);font-size:14px;}
.cat-chip:hover{border-color:var(--brand);background:#fff;color:var(--brand);transform:translateY(-2px);}

/* ---------- product grid ---------- */
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(4,1fr);}
.p-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.p-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:#D5DED9;}
.p-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--surface-alt);}
.p-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.p-card:hover .p-thumb img{transform:scale(1.03);}
.p-thumb .badge-pill{position:absolute;left:12px;top:12px;}
.p-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.p-cat{font-size:12px;color:var(--text-muted);letter-spacing:.02em;}
.p-name{font-size:16.5px;font-weight:600;color:var(--brand-dark);line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.p-desc{font-size:13.5px;color:var(--text-muted);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.p-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:8px;}
.price{font-size:23px;font-weight:700;color:var(--text);}
.price .cur{font-size:14px;font-weight:600;margin-right:2px;}
.price-old{font-size:13px;color:#9AA7A1;text-decoration:line-through;margin-left:6px;}
.grid-more{text-align:center;margin-top:36px;}
.link-more{font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:8px;}
.link-more i{transition:transform .18s ease;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- reviews ---------- */
.review-rail{position:relative;}
.review-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 2px 20px;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none;}
.r-card{
  flex:0 0 calc((100% - 48px)/3);scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-sm);
}
.r-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex-shrink:0;}
.r-name{font-size:15px;font-weight:600;color:var(--brand-dark);line-height:1.4;}
.r-role{font-size:12.5px;color:var(--text-muted);}
.stars{color:var(--warn);font-size:12.5px;letter-spacing:2px;margin-bottom:8px;}
.r-text{font-size:14.5px;color:#3B4A44;line-height:1.8;}
.r-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;}
.rail-ctrl{display:flex;align-items:center;gap:12px;justify-content:center;margin-top:6px;}
.rail-arrow{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--brand-dark);
  display:inline-flex;align-items:center;justify-content:center;transition:border-color .16s ease,color .16s ease;}
.rail-arrow:hover{border-color:var(--brand);color:var(--brand);}
.rail-dots{display:flex;gap:8px;}
.rail-dots span{width:18px;height:4px;border-radius:2px;background:#CFDAD5;display:block;transition:background-color .18s ease,width .18s ease;}
.rail-dots span.on{background:var(--accent);width:30px;}

/* ---------- guarantee ---------- */
.guard-band{background:var(--brand-soft);padding:40px 0;}
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.guard{display:flex;gap:14px;align-items:flex-start;}
.guard i{font-size:20px;color:var(--brand);margin-top:4px;}
.guard h4{font-size:15px;font-weight:600;margin:0 0 4px;color:var(--brand-dark);}
.guard p{font-size:13px;color:var(--text-muted);margin:0;line-height:1.6;}

/* ---------- news / cms ---------- */
.news-layout{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:24px;}
.n-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);
  transition:box-shadow .18s ease,transform .18s ease;
}
.n-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.n-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--surface-alt);}
.n-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.n-card:hover .n-thumb img{transform:scale(1.03);}
.n-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.n-title{font-size:17px;font-weight:600;color:var(--brand-dark);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-layout .n-card.feature .n-title{font-size:20px;}
.n-sum{font-size:14px;color:var(--text-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.n-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text-muted);margin-top:auto;}
.n-meta .dot{width:3px;height:3px;border-radius:50%;background:#C6D1CC;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 20px;background:var(--surface);
  border:1px dashed var(--line);border-radius:var(--radius-card);
}
.empty-state i{font-size:30px;color:#A9B8B2;margin-bottom:12px;display:block;}
.empty-state p{font-size:15px;color:var(--text-muted);margin:0 0 16px;}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--brand-dark);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--brand);flex-shrink:0;line-height:1;
  transition:transform .18s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-item .faq-ans{padding:0 0 22px;font-size:15px;color:#3B4A44;line-height:1.85;max-width:760px;}
.faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

/* ---------- dark cta ---------- */
.cta-dark{position:relative;background:var(--brand-dark);color:#fff;overflow:hidden;}
.cta-dark::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent);}
.cta-dark .cta-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;opacity:.16;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:64px 0;flex-wrap:wrap;}
.cta-inner h2{color:#fff;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.78);margin:0;font-size:15.5px;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.75);padding:64px 0 0;position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:#0d5a4c;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{font-size:14px;color:rgba(255,255,255,.68);max-width:280px;line-height:1.75;}
.site-footer h5{font-size:15px;color:#fff;font-weight:600;margin:0 0 16px;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul li a{font-size:14px;color:rgba(255,255,255,.7);}
.site-footer ul li a:hover{color:var(--accent);}
.footer-contact li{font-size:14px;display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.7);}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- responsive ---------- */
@media (max-width:1399px){
  .container{max-width:1140px;}
}
@media (max-width:1199px){
  .card-grid{grid-template-columns:repeat(3,1fr);}
  .main-nav a{padding:8px 9px;font-size:14.5px;}
  .cmd-search{min-width:190px;}
}
@media (max-width:991px){
  body{padding-top:56px;}
  .site-header{height:56px;}
  .site-header .container{gap:12px;}
  .main-nav,.header-right .cmd-search,.header-right .icon-btn.desk{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-right .btn-brand{height:40px;padding:0 16px;font-size:14px;}
  .hero-inner{grid-template-columns:1fr;min-height:0;padding:48px 0 56px;gap:28px;}
  .hero-figure img{height:300px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .guard-grid{grid-template-columns:repeat(2,1fr);}
  .news-layout{grid-template-columns:1fr 1fr;}
  .r-card{flex:0 0 calc((100% - 24px)/2);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:64px 0;}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:48px 0;}
  .card-grid{grid-template-columns:1fr;}
  .news-layout{grid-template-columns:1fr;}
  .guard-grid{grid-template-columns:1fr;}
  .r-card{flex:0 0 88%;}
  .hero-stats{gap:24px;}
  .hero-cta .btn{width:100%;}
  .cta-inner{padding:48px 0;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --brand:#0F6E5C;
  --brand-dark:#083A31;
  --brand-soft:#E4F2EE;
  --accent:#D8F135;
  --warn:#FF7A3D;
  --bg:#F7F7F4;
  --surface:#FFFFFF;
  --surface-alt:#F0F2EE;
  --text:#14201C;
  --text-muted:#5A6B65;
  --line:#E3E7E3;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(16,24,20,.06);
  --shadow-md:0 8px 24px rgba(16,24,20,.08);
  --shadow-lg:0 20px 48px rgba(16,24,20,.12);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .16s ease,border-color .16s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;color:var(--brand-dark);letter-spacing:-.01em}
p{margin:0 0 1.2em}
ul,ol{margin:0;padding:0}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.site-header .container{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:8px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand) 0 58%,var(--accent) 58% 100%);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:9px 8px;border-radius:2px;background:#fff;opacity:.9;
}
.brand-text{font-size:18px;font-weight:700;color:var(--brand-dark);letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:6px}
.main-nav a{position:relative;font-size:15px;color:var(--text-muted);padding:6px 0;white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--accent);border-radius:2px;transition:width .18s ease}
.main-nav a:hover{color:var(--brand)}
.main-nav a:hover::after{width:60%}
.main-nav a.active{color:var(--brand-dark);font-weight:600}
.main-nav a.active::after{width:60%}
.header-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.cmd-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  min-width:248px;background:var(--surface-alt);
  border:1px solid var(--line);border-radius:var(--radius-pill);
  transition:border-color .16s ease,box-shadow .16s ease,background .16s ease;
}
.cmd-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(15,110,92,.12)}
.cmd-search i{font-size:13px;color:var(--text-muted)}
.cmd-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--text)}
.cmd-search input::placeholder{color:#93a09b}
.cmd-kbd{font-size:12px;color:var(--text-muted);background:#fff;border:1px solid var(--line);border-radius:6px;padding:1px 6px;white-space:nowrap}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--text-muted);
  transition:all .16s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;font-size:15px;font-weight:600;
  border-radius:var(--radius-btn);border:1px solid transparent;
  transition:transform .16s ease,background .16s ease,color .16s ease,border-color .16s ease,box-shadow .16s ease;
  cursor:pointer;
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-brand{background:var(--brand);color:#fff;height:40px;padding:0 18px}
.btn-brand:hover{background:#0c5b4c;color:#fff;transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--text);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand)}
.btn-accent{background:var(--accent);color:#132018}
.btn-accent:hover{background:#c9e42c;color:#132018;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.38)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.6)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;color:var(--brand-dark)}
.mobile-panel{
  display:none;position:absolute;left:0;right:0;top:100%;
  background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);
  padding:18px 24px 24px;
}
.mobile-panel.open{display:block}
.mobile-panel .cmd-search{width:100%;min-width:0;margin-bottom:14px}
.mobile-panel nav{display:flex;flex-direction:column;margin-bottom:16px}
.mobile-panel nav a{padding:12px 2px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line)}
.mobile-panel nav a.active{color:var(--brand);font-weight:600}
.mobile-panel .btn{width:100%}

/* ============ 面包屑 / 文章头 ============ */
.page-head{background:var(--surface);border-bottom:1px solid var(--line);padding:26px 0 34px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:6px;list-style:none;font-size:13px;color:var(--text-muted);margin:0 0 18px}
.crumbs li{display:flex;align-items:center;gap:6px;max-width:100%}
.crumbs li:not(:last-child)::after{content:"/";color:#bdc6c1}
.crumbs a{color:var(--text-muted)}
.crumbs a:hover{color:var(--brand)}
.crumbs .current{color:var(--text);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:520px}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12px;font-weight:600;padding:5px 13px;border-radius:var(--radius-pill);
}
.article-head h1{
  font-size:38px;line-height:1.28;font-weight:700;
  color:var(--brand-dark);margin:14px 0 18px;max-width:940px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--text-muted)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{font-size:12px;color:var(--brand)}
.meta-sep{color:#cbd3ce}
.article-cover{margin:28px 0 0;background:var(--surface-alt);border-radius:var(--radius-card);overflow:hidden}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ============ 正文布局 ============ */
.article-main{padding:52px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:52px;align-items:start}
.article-body{max-width:760px;font-size:17px;line-height:1.85;color:#22302b}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:26px;line-height:1.4;margin:36px 0 14px;padding-left:0;color:var(--brand-dark)}
.article-body h3{font-size:20px;line-height:1.5;margin:28px 0 12px;color:var(--brand-dark)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.5em}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;border-left:4px solid var(--brand);
  background:var(--brand-soft);border-radius:0 var(--radius-img) var(--radius-img) 0;color:#25423b;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:22px 0;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-muted);text-align:center;margin-top:8px}
.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 14px;text-align:left}
.article-body thead th{background:var(--surface-alt);font-weight:600;color:var(--brand-dark)}
.article-body tbody tr:nth-child(even){background:#fafbf9}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(15,110,92,.35)}
.article-body a:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body code{background:var(--surface-alt);border-radius:6px;padding:2px 6px;font-size:14px}

/* 侧栏 */
.article-aside{position:sticky;top:88px}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-sm);margin-bottom:20px;
}
.aside-card h3{font-size:16px;font-weight:700;margin-bottom:14px}
.aside-list{list-style:none}
.aside-list li+li{border-top:1px solid var(--line)}
.aside-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;font-size:14px;color:var(--text);
}
.aside-list a:hover{color:var(--brand)}
.aside-list a i{font-size:12px;color:#a9b3ae;transition:transform .16s ease}
.aside-list a:hover i{transform:translateX(3px);color:var(--brand)}
.aside-help p{font-size:14px;color:var(--text-muted);margin-bottom:16px}
.aside-help .btn{width:100%}
.aside-note{font-size:13px;color:var(--text-muted);margin:0}

/* 空态 */
.empty-state{
  max-width:760px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:48px 24px;text-align:center;box-shadow:var(--shadow-sm);
}
.empty-state i{font-size:30px;color:#9fb0aa;margin-bottom:14px;display:block}
.empty-state p{font-size:15px;color:var(--text-muted);margin-bottom:18px}

/* 文末区 */
.article-foot{max-width:760px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tag{
  font-size:13px;color:var(--brand-dark);background:var(--brand-soft);
  border-radius:var(--radius-pill);padding:6px 14px;
}
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.pn-card{
  display:flex;flex-direction:column;gap:6px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;box-shadow:var(--shadow-sm);
  transition:transform .17s ease,box-shadow .17s ease,border-color .17s ease;
}
.pn-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#cfe3dd}
.pn-label{font-size:12px;color:var(--text-muted)}
.pn-card strong{font-size:16px;color:var(--brand-dark);font-weight:700}
.pn-sub{font-size:13px;color:var(--text-muted)}
.back-cat{display:inline-flex;align-items:center;gap:8px;margin-top:24px;font-size:14px;font-weight:600}

/* 相关推荐 */
.section{padding:72px 0}
.section-alt{background:var(--surface-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:28px;line-height:1.35}
.section-head p{font-size:14px;color:var(--text-muted);margin:8px 0 0}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .17s ease,box-shadow .17s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.post-card .thumb{aspect-ratio:4/3;overflow:hidden;background:var(--surface-alt)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.post-card:hover .thumb img{transform:scale(1.03)}
.post-card .body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{font-size:17px;line-height:1.5;font-weight:700}
.post-card h3 a{color:var(--brand-dark)}
.post-card h3 a:hover{color:var(--brand)}
.post-card .desc{font-size:14px;line-height:1.7;color:var(--text-muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .meta{font-size:12px;color:var(--text-muted);margin-top:auto;display:flex;align-items:center;gap:8px}

/* CTA */
.cta-band{
  background:var(--brand-dark);border-top:2px solid var(--accent);
  padding:64px 0;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.07;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,#fff 0 1px,transparent 1px 14px);
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:28px;line-height:1.4;margin-bottom:8px}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15px;margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.78);border-top:2px solid var(--accent);padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14px;line-height:1.7;color:rgba(255,255,255,.68);margin:0}
.site-footer h5{font-size:15px;color:#fff;margin-bottom:14px;font-weight:700}
.site-footer ul{list-style:none}
.site-footer li a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;padding:5px 0}
.site-footer li a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;font-size:14px;padding:5px 0;color:rgba(255,255,255,.72)}
.footer-contact i{color:var(--accent);font-size:13px;margin-top:7px}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* 响应式 */
@media (max-width:1399px){
  .article-head h1{font-size:34px}
}
@media (max-width:1199px){
  .article-layout{grid-template-columns:1fr;gap:0}
  .article-aside{display:none}
  .card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:991px){
  .main-nav,.cmd-search,.icon-btn.desk{display:none}
  .nav-toggle{display:grid;place-items:center}
  .site-header .container{height:56px}
  .article-head h1{font-size:30px}
  .section{padding:56px 0}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .article-head h1{font-size:27px;line-height:1.34}
  .crumbs .current{max-width:220px}
  .article-main{padding:36px 0 64px}
  .article-body{font-size:16.5px}
  .section{padding:48px 0}
  .card-grid{grid-template-columns:1fr}
  .prev-next{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .header-right .btn-brand{width:auto}
  .cta-actions{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .post-card:hover,.pn-card:hover,.btn:hover{transform:none}
  .post-card:hover .thumb img{transform:none}
}

/* roulang page: category1 */
:root{
  --brand:#0F6E5C;
  --brand-dark:#083A31;
  --brand-soft:#E4F2EE;
  --accent:#D8F135;
  --warn:#FF7A3D;
  --bg:#F7F7F4;
  --surface:#FFFFFF;
  --surface-alt:#F0F2EE;
  --text:#14201C;
  --text-muted:#5A6B65;
  --line:#E3E7E3;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(16,24,20,.06);
  --shadow-md:0 8px 24px rgba(16,24,20,.08);
  --shadow-lg:0 20px 48px rgba(16,24,20,.12);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .15s ease,border-color .15s ease,background .15s ease}
h1,h2,h3,h4,h5{margin:0;color:var(--brand-dark);font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,select,button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 顶部命令栏 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:background .2s ease;
}
.site-header.scrolled{background:rgba(255,255,255,.94);backdrop-filter:blur(6px)}
.site-header .container{display:flex;align-items:center;gap:26px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  position:relative;width:28px;height:28px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand) 0 58%,var(--brand-dark) 58% 100%);
}
.brand-mark::after{
  content:"";position:absolute;left:5px;bottom:6px;width:18px;height:4px;
  border-radius:2px;background:var(--accent);transform:rotate(-30deg);
}
.brand-text{font-size:18px;font-weight:700;color:var(--brand-dark);letter-spacing:-.01em}
.main-nav{display:flex;align-items:center;gap:24px;margin-left:6px}
.main-nav a{position:relative;font-size:15px;color:var(--text-muted);padding:6px 0;white-space:nowrap}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:3px;width:0;border-radius:2px;
  background:var(--accent);transition:width .15s ease;
}
.main-nav a:hover{color:var(--brand)}
.main-nav a.active{color:var(--brand-dark);font-weight:600}
.main-nav a.active::after{width:60%}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.cmd-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 10px 0 14px;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  background:var(--surface-alt);min-width:236px;transition:border-color .15s ease,box-shadow .15s ease;
}
.cmd-search i{font-size:13px;color:var(--text-muted)}
.cmd-search input{border:0;background:transparent;outline:none;font-size:14px;color:var(--text);width:100%;min-width:0}
.cmd-search input::placeholder{color:#9AA8A2}
.cmd-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(216,241,53,.55);background:#fff}
.cmd-kbd{font-size:11px;color:var(--text-muted);border:1px solid var(--line);border-radius:6px;padding:1px 6px;background:#fff;white-space:nowrap}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;color:var(--text-muted);
  transition:all .15s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;
  border-radius:var(--radius-btn);background:var(--brand);border:1px solid var(--brand);
  color:#fff;font-weight:600;font-size:15px;white-space:nowrap;
  transition:background .15s ease,transform .15s ease,box-shadow .15s ease;
}
.btn-brand:hover{background:#0c5b4c;border-color:#0c5b4c;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 20px;
  border-radius:var(--radius-btn);background:#fff;border:1px solid var(--line);
  color:var(--text);font-weight:600;font-size:15px;white-space:nowrap;transition:all .15s ease;
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 16px;
  border-radius:var(--radius-btn);background:var(--accent);border:1px solid #c9e12c;
  color:#14201C;font-weight:600;font-size:14px;white-space:nowrap;transition:all .15s ease;
}
.btn-accent:hover{background:#cbe42f;transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.nav-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;color:var(--brand-dark);
}
.mobile-panel{
  display:none;position:fixed;top:56px;left:0;right:0;bottom:0;z-index:1029;
  background:#fff;padding:20px 24px 36px;overflow-y:auto;
}
.mobile-panel.open{display:block}
.mobile-panel .cmd-search{min-width:0;width:100%;background:var(--surface-alt)}
.mobile-panel nav{display:flex;flex-direction:column;gap:2px;margin:18px 0 22px}
.mobile-panel nav a{
  padding:14px 4px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line);
}
.mobile-panel nav a.active{color:var(--brand);font-weight:600}
.mobile-panel .btn-brand{width:100%}

/* ============ 分类头图 ============ */
.cat-hero{
  position:relative;display:flex;align-items:center;min-height:272px;
  padding:40px 0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,58,49,.88) 0%,rgba(8,58,49,.52) 52%,rgba(8,58,49,.12) 100%);
}
.hero-panel{
  position:relative;z-index:2;background:#fff;border-radius:var(--radius-card);
  padding:26px 32px 30px;max-width:680px;box-shadow:var(--shadow-lg);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:14px}
.crumbs a{color:var(--text-muted)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#B9C3BE}
.crumbs .here{color:var(--text);font-weight:600}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand);background:var(--brand-soft);border-radius:var(--radius-pill);
  padding:4px 12px;margin-bottom:14px;
}
.cat-hero h1{font-size:40px;line-height:1.25;margin-bottom:12px}
.cat-hero .lede{font-size:16px;color:var(--text-muted);margin:0;max-width:560px}

/* ============ 筛选条 ============ */
.filter-bar{
  position:sticky;top:64px;z-index:1020;background:#fff;
  border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.filter-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:14px 0}
.pill-row{display:flex;gap:10px;flex-wrap:wrap}
.pill{
  height:36px;padding:0 16px;border-radius:var(--radius-pill);border:1px solid var(--line);
  background:#fff;color:var(--text-muted);font-size:14px;transition:all .15s ease;
}
.pill:hover{border-color:var(--brand);color:var(--brand)}
.pill.active{
  background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);
  font-weight:600;box-shadow:inset 0 -3px 0 var(--accent);
}
.sort-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.sort-row span{font-size:13px;color:var(--text-muted)}
.select{
  height:40px;border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;
  padding:0 12px;font-size:14px;color:var(--text);outline:none;transition:border-color .15s ease,box-shadow .15s ease;
}
.select:focus{border-color:var(--brand);box-shadow:0 0 0 2px rgba(15,110,92,.15)}

/* ============ 商品网格 ============ */
.cat-main{padding:56px 0 80px}
.grid-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:24px}
.grid-head h2{font-size:28px;line-height:1.35}
.grid-head p{font-size:14px;color:var(--text-muted);margin:6px 0 0}
.grid-head .count{font-size:13px;color:var(--text-muted);font-variant-numeric:tabular-nums}
.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.p-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
}
.p-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.p-media{display:block;aspect-ratio:4/3;overflow:hidden;background:var(--surface-alt)}
.p-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.p-card:hover .p-media img{transform:scale(1.03)}
.p-body{display:flex;flex-direction:column;gap:8px;padding:18px 20px 20px;flex:1}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;height:24px;padding:0 10px;
  border-radius:var(--radius-pill);background:var(--brand-soft);color:var(--brand-dark);
  font-size:12px;font-weight:600;
}
.badge-hot{background:var(--accent);color:#14201C}
.badge-warn{background:#FFEDE4;color:#B4470F}
.p-title{
  font-size:17px;line-height:1.5;font-weight:600;color:var(--brand-dark);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.p-desc{font-size:13.5px;line-height:1.65;color:var(--text-muted);margin:0}
.p-foot{margin-top:auto;padding-top:8px;display:flex;align-items:flex-end;justify-content:space-between;gap:12px}
.price{color:var(--warn);font-weight:700;font-size:22px;line-height:1;font-variant-numeric:tabular-nums}
.price .cur{font-size:14px;margin-right:2px}
.price .old{display:block;margin-top:6px;font-size:13px;font-weight:400;color:#9AA8A2;text-decoration:line-through}
.empty{display:none;text-align:center;padding:64px 20px;color:var(--text-muted)}
.empty.show{display:block}
.empty i{font-size:34px;color:#B7C7C1;display:block;margin-bottom:12px}
.empty p{font-size:15px;margin:0 0 14px}

/* ============ 分页 ============ */
.pager{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:44px}
.pager a,.pager span{
  min-width:38px;height:38px;padding:0 10px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;
  font-size:14px;color:var(--text-muted);font-variant-numeric:tabular-nums;transition:all .15s ease;
}
.pager a:hover{border-color:var(--brand);color:var(--brand)}
.pager .current{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.pager .wide{padding:0 16px}

/* ============ 保障条 ============ */
.assure{background:var(--brand-soft);border-top:1px solid #CFE6DE;border-bottom:1px solid #CFE6DE;padding:36px 0}
.assure-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.assure-item{display:flex;gap:12px;align-items:flex-start}
.assure-item i{font-size:20px;color:var(--brand);margin-top:5px}
.assure-item h4{font-size:15px;font-weight:600;margin:0 0 3px}
.assure-item p{font-size:13px;color:var(--text-muted);margin:0;line-height:1.65}

/* ============ 选购参考 ============ */
.guide{background:var(--surface);padding:88px 0;border-bottom:1px solid var(--line)}
.guide-inner{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center}
.guide-media{position:relative}
.guide-media::before{
  content:"";position:absolute;right:-18px;bottom:-18px;width:132px;height:132px;
  background:var(--accent);border-radius:18px;transform:rotate(-8deg);z-index:0;
}
.guide-media img{
  position:relative;z-index:1;width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-img);box-shadow:var(--shadow-md);
}
.guide h2{font-size:28px;line-height:1.35;margin-bottom:14px}
.guide .lead{font-size:16px;color:var(--text-muted);margin-bottom:24px}
.guide-list{display:grid;gap:16px}
.guide-list li{display:flex;gap:14px;align-items:flex-start}
.guide-list .num{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.guide-list h4{font-size:16px;font-weight:600;margin:0 0 2px}
.guide-list p{font-size:14px;color:var(--text-muted);margin:0;line-height:1.7}
.guide-stats{display:flex;gap:36px;margin-top:28px;flex-wrap:wrap}
.guide-stats strong{display:block;font-size:24px;font-weight:700;color:var(--brand-dark);font-variant-numeric:tabular-nums;line-height:1.2}
.guide-stats span{font-size:13px;color:var(--text-muted)}

/* ============ FAQ ============ */
.faq{padding:88px 0}
.faq-head{max-width:620px;margin-bottom:32px}
.faq-head h2{font-size:28px;line-height:1.35;margin-bottom:10px}
.faq-head p{font-size:15px;color:var(--text-muted);margin:0}
.faq-list .accordion-item{
  border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden;margin-bottom:12px;
  box-shadow:var(--shadow-sm);
}
.faq-list .accordion-button{
  display:flex;align-items:center;gap:16px;width:100%;padding:18px 22px;background:#fff;
  color:var(--brand-dark);font-size:16px;font-weight:600;line-height:1.6;box-shadow:none;border:0;
}
.faq-list .accordion-button:not(.collapsed){background:var(--brand-soft);color:var(--brand-dark)}
.faq-list .accordion-button::after{display:none}
.faq-list .accordion-button::before{
  content:"+";order:2;margin-left:auto;font-size:22px;font-weight:400;color:var(--brand);line-height:1;
}
.faq-list .accordion-button:not(.collapsed)::before{content:"−"}
.faq-list .accordion-button:focus{box-shadow:none}
.faq-list .accordion-button:focus-visible{box-shadow:0 0 0 2px var(--accent) inset}
.faq-list .accordion-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-muted)}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand-dark);color:#fff;padding:64px 0;
}
.cta-band::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent)}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.07;
  background-image:radial-gradient(#ffffff 1px,transparent 1px);
  background-size:16px 16px;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:28px;line-height:1.4;margin-bottom:8px}
.cta-band p{color:#B9CFC9;font-size:15px;margin:0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.cta-band .btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.cta-band .btn-brand{background:var(--accent);border-color:var(--accent);color:#14201C}
.cta-band .btn-brand:hover{background:#cbe42f;border-color:#cbe42f;color:#14201C}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-dark);color:#C9D8D4;border-top:2px solid var(--accent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:56px 0 40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.site-footer .brand-text{color:#fff;font-size:18px;font-weight:700}
.footer-desc{font-size:14px;line-height:1.7;color:#9FB3AE;max-width:290px;margin:0}
.site-footer h5{color:#fff;font-size:15px;font-weight:600;margin:0 0 16px;letter-spacing:0}
.site-footer ul li{margin-bottom:10px}
.site-footer ul li a{font-size:14px;color:#A9BDB8}
.site-footer ul li a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#A9BDB8;line-height:1.7}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:13px;color:#8FA5A0;
}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .main-nav{gap:20px}
}
@media (max-width:1199.98px){
  .cmd-search{min-width:180px}
  .main-nav{gap:16px}
  .main-nav a{font-size:14px}
  .product-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .guide-inner{gap:40px}
}
@media (max-width:991.98px){
  .site-header .container{min-height:56px;gap:14px}
  .main-nav{display:none}
  .cmd-search,.icon-btn.desk{display:none}
  .nav-toggle{display:inline-flex}
  .brand-text{font-size:17px}
  .cat-hero{min-height:auto;padding:28px 0 32px}
  .hero-panel{padding:22px 22px 26px;max-width:100%}
  .cat-hero h1{font-size:32px}
  .filter-bar{position:static;top:auto}
  .product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .assure-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .guide{padding:64px 0}
  .guide-inner{grid-template-columns:1fr;gap:32px}
  .guide-media::before{display:none}
  .faq{padding:64px 0}
  .cat-main{padding:40px 0 64px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:44px 0 32px}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .cat-hero h1{font-size:28px}
  .cat-hero .lede{font-size:15px}
  .grid-head h2,.guide h2,.faq-head h2,.cta-band h2{font-size:23px}
  .product-grid{grid-template-columns:1fr;gap:16px}
  .assure-grid{grid-template-columns:1fr;gap:16px}
  .cat-main{padding:32px 0 56px}
  .guide{padding:48px 0}
  .faq{padding:48px 0}
  .cta-band{padding:48px 0}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%}
  .pager .page-num{display:none}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
  .sort-row{width:100%}
  .sort-row .select{flex:1}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  .p-card:hover,.p-card:hover .p-media img,.btn-brand:hover,.btn-ghost:hover,.btn-accent:hover,.icon-btn:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --brand:#0F6E5C;
  --brand-dark:#083A31;
  --brand-soft:#E4F2EE;
  --accent:#D8F135;
  --warn:#FF7A3D;
  --bg:#F7F7F4;
  --surface:#FFFFFF;
  --surface-alt:#F0F2EE;
  --text:#14201C;
  --text-muted:#5A6B65;
  --line:#E3E7E3;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(16,24,20,.06);
  --shadow-md:0 8px 24px rgba(16,24,20,.08);
  --shadow-lg:0 20px 48px rgba(16,24,20,.12);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none;transition:color .15s ease;}
a:hover{color:var(--brand-dark);}
img{max-width:100%;display:block;}
h1,h2,h3,h4,h5{margin:0;letter-spacing:-.01em;color:var(--brand-dark);line-height:1.35;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:16px;
  padding-right:16px;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.site-header .container{
  height:64px;
  display:flex;
  align-items:center;
  gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:26px;height:26px;border-radius:9px;
  background:conic-gradient(from 140deg,var(--brand) 0 55%,var(--accent) 55% 100%);
  display:inline-block;flex:0 0 auto;
}
.brand-text{
  font-size:18px;font-weight:700;color:var(--brand-dark);letter-spacing:-.01em;white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}
.main-nav a{
  position:relative;
  display:block;
  font-size:15px;
  color:var(--text-muted);
  padding:8px 12px;
  border-radius:8px;
  white-space:nowrap;
  transition:color .15s ease,background-color .15s ease;
}
.main-nav a:hover{color:var(--brand);background:var(--brand-soft);}
.main-nav a.active{color:var(--brand-dark);font-weight:600;}
.main-nav a.active::after{
  content:"";position:absolute;left:12px;bottom:1px;width:60%;height:3px;
  background:var(--accent);border-radius:2px;
}
.header-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.cmd-search{
  position:relative;
  display:flex;align-items:center;
  width:250px;
}
.cmd-search i{
  position:absolute;left:14px;font-size:13px;color:var(--text-muted);pointer-events:none;
}
.cmd-search input{
  width:100%;height:44px;
  padding:0 52px 0 38px;
  font-size:14px;color:var(--text);
  background:var(--surface-alt);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  transition:border-color .15s ease,background-color .15s ease,box-shadow .15s ease;
}
.cmd-search input::placeholder{color:#8A9893;}
.cmd-search input:focus{
  outline:none;background:#fff;border:2px solid var(--brand);
  padding:0 51px 0 37px;
}
.cmd-kbd{
  position:absolute;right:12px;
  font-size:11px;line-height:1;
  padding:4px 6px;border:1px solid var(--line);border-radius:6px;
  color:var(--text-muted);background:#fff;
}
.icon-btn{
  width:38px;height:38px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;
  color:var(--text-muted);background:#fff;
  transition:color .15s ease,border-color .15s ease,transform .15s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  font-size:15px;font-weight:600;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .15s ease,color .15s ease,transform .15s ease,box-shadow .15s ease,border-color .15s ease;
}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:#0B5949;color:#fff;transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:var(--brand-dark);}
.btn-accent:hover{background:#C7E02A;color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--text);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  background:#fff;border:1px solid var(--line);border-radius:10px;
  color:var(--brand-dark);font-size:16px;cursor:pointer;
}
.mobile-panel{
  display:none;
  position:absolute;top:100%;left:0;right:0;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-md);
  padding:16px 0 20px;
}
.mobile-panel.open{display:block;}
.mobile-panel .cmd-search{width:100%;}
.mobile-nav{display:flex;flex-direction:column;gap:2px;margin:14px 0 14px;}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 4px;font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-nav a.active{color:var(--brand);font-weight:600;}
.mobile-cta{width:100%;}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--text-muted);
  padding:26px 0 0;
}
.crumbs a{color:var(--text-muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:#B9C2BE;}
.crumbs .current{color:var(--text);font-weight:600;}

/* ============ 大图开场 ============ */
.page-open{padding-bottom:8px;}
.hero-figure{
  position:relative;
  margin-top:18px;
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-md);
  background:var(--surface-alt);
}
.hero-figure img{width:100%;height:420px;object-fit:cover;}
.hero-slash{
  position:absolute;top:0;right:0;width:150px;height:100%;
  background:var(--accent);
  opacity:.88;
  clip-path:polygon(46% 0,100% 0,100% 100%,0 100%);
}
.hero-caption{
  position:relative;
  z-index:2;
  margin-top:-84px;
  max-width:830px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-lg);
  padding:34px 38px 36px;
}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  font-size:12.5px;font-weight:600;
  color:var(--brand-dark);
  background:var(--brand-soft);
  border-radius:var(--radius-pill);
  margin-bottom:14px;
}
.hero-caption h1{
  font-size:42px;
  line-height:1.25;
  font-weight:700;
  margin-bottom:14px;
}
.hero-caption .lead{
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-muted);
  margin-bottom:20px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-block;
  padding:5px 12px;
  font-size:13px;
  color:var(--text-muted);
  background:var(--surface-alt);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
}
.tag-accent{
  background:var(--accent);color:var(--brand-dark);border-color:transparent;font-weight:600;
}

/* ============ 筛选条 ============ */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:26px;
  padding:14px 18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow-sm);
}
.filter-bar .pills{display:flex;flex-wrap:wrap;gap:8px;}
.filter-bar .filter-label{
  font-size:13px;color:var(--text-muted);padding-right:4px;
}
.pill{
  display:inline-block;
  padding:6px 14px;
  font-size:13px;
  color:var(--brand-dark);
  background:var(--brand-soft);
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  transition:background-color .15s ease,color .15s ease;
}
.pill:hover{background:#D3E9E3;color:var(--brand-dark);}
.pill.active{background:var(--brand);color:#fff;}
.filter-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.filter-select{
  height:42px;
  padding:0 34px 0 14px;
  font-size:14px;color:var(--text);
  background:#fff url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%235A6B65' d='M4.2 6.2 8 10l3.8-3.8z'/%3E%3C/svg%3E") no-repeat right 10px center;
  background-size:16px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  appearance:none;
  cursor:pointer;
  transition:border-color .15s ease;
}
.filter-select:focus{outline:none;border:2px solid var(--brand);}
.filter-count{font-size:13px;color:var(--text-muted);font-variant-numeric:tabular-nums;}

/* ============ 叙事区块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0 88px;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:30px;margin-bottom:12px;}
.section-head p{font-size:15.5px;color:var(--text-muted);margin:0;}
.eyebrow{
  display:inline-block;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);
  margin-bottom:10px;
}
.story-block{background:var(--surface);}
.story-block--alt{background:var(--surface-alt);}
.story-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:52px;
  align-items:center;
  padding:56px 0;
}
.story-row--reverse .story-media{order:2;}
.story-media{
  border-radius:var(--radius-img);
  overflow:hidden;
  background:var(--surface-alt);
  box-shadow:var(--shadow-sm);
}
.story-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .18s ease;
}
.story-media:hover img{transform:scale(1.03);}
.story-body h3{font-size:23px;margin:12px 0 14px;}
.story-body p{font-size:15.5px;color:var(--text-muted);line-height:1.85;}
.feature-list{margin:18px 0 22px;display:flex;flex-direction:column;gap:10px;}
.feature-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14.5px;color:var(--text);
}
.feature-list i{
  color:var(--brand);font-size:13px;margin-top:7px;flex:0 0 auto;
}
.story-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px;}
.story-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.text-link{
  font-size:14.5px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.text-link:hover{color:var(--brand-dark);}

/* ============ FAQ ============ */
.faq-section{padding:88px 0 72px;}
.faq-list{max-width:880px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  background:none;border:0;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  padding:22px 46px 22px 0;
  position:relative;
  cursor:pointer;
  transition:color .15s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q .sign{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:26px;height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:400;color:var(--brand);
  border:1px solid var(--line);border-radius:50%;
  background:#fff;
}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
}
.faq-item.open .faq-a{max-height:460px;}
.faq-a p{
  font-size:15px;line-height:1.85;color:var(--text-muted);
  padding:0 40px 22px 0;
  margin:0;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  margin-top:8px;
  padding:78px 0;
  background:var(--brand-dark);
  color:#fff;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent);
}
.cta-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(8,58,49,.86),rgba(8,58,49,.92)),url("/assets/images/backpic/back-3.png");
  background-size:cover;
  background-position:center;
  opacity:.9;
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:28px;justify-content:space-between;}
.cta-inner h2{color:#fff;font-size:30px;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15.5px;margin:0;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-dark);
  color:rgba(255,255,255,.78);
  padding:64px 0 26px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin:0;max-width:260px;}
.site-footer h5{
  color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;
}
.site-footer ul{display:flex;flex-direction:column;gap:10px;}
.site-footer ul a{
  color:rgba(255,255,255,.72);font-size:14px;
}
.site-footer ul a:hover{color:var(--accent);}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:rgba(255,255,255,.72);line-height:1.7;
}
.footer-contact i{color:var(--accent);font-size:13px;margin-top:6px;flex:0 0 auto;}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
  font-variant-numeric:tabular-nums;
}

/* ============ 响应式 ============ */
@media (max-width:1240px){
  .cmd-search{width:200px;}
  .main-nav a{padding:8px 10px;font-size:14.5px;}
}
@media (max-width:1199px){
  .icon-btn.desk{display:none;}
  .hero-figure img{height:360px;}
  .hero-caption h1{font-size:36px;}
}
@media (max-width:991px){
  .main-nav,.header-right .cmd-search,.header-right .btn-brand{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .section{padding:64px 0;}
  .section-tight{padding:48px 0 64px;}
  .faq-section{padding:64px 0 56px;}
  .story-row{grid-template-columns:1fr;gap:26px;padding:44px 0;}
  .story-row--reverse .story-media{order:0;}
  .hero-figure img{height:300px;}
  .hero-caption{margin-top:-60px;padding:26px 24px 28px;max-width:100%;}
  .hero-caption h1{font-size:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner h2{font-size:26px;}
}
@media (max-width:767px){
  .site-header .container{height:56px;gap:12px;}
  .brand-text{font-size:17px;}
  .hero-figure img{height:240px;}
  .hero-caption{margin-top:-44px;padding:22px 20px 24px;}
  .hero-caption h1{font-size:29px;}
  .hero-caption .lead{font-size:15.5px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:24px;}
  .story-body h3{font-size:20px;}
  .filter-bar{padding:12px 14px;}
  .filter-right{margin-left:0;width:100%;justify-content:space-between;}
  .faq-q{font-size:15.5px;padding:18px 42px 18px 0;}
  .cta-band{padding:56px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575px){
  .hero-caption h1{font-size:27px;}
  .hero-figure img{height:200px;}
  .story-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .filter-right .filter-select{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  .story-media:hover img{transform:none;}
  .btn:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --brand:#0F6E5C;
  --brand-dark:#083A31;
  --brand-soft:#E4F2EE;
  --accent:#D8F135;
  --warn:#FF7A3D;
  --bg:#F7F7F4;
  --surface:#FFFFFF;
  --surface-alt:#F0F2EE;
  --text:#14201C;
  --text-muted:#5A6B65;
  --line:#E3E7E3;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(16,24,20,.06);
  --shadow-md:0 8px 24px rgba(16,24,20,.08);
  --shadow-lg:0 20px 48px rgba(16,24,20,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .15s ease,opacity .15s ease}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--brand-dark)}
p{margin:0 0 1.2em}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  backdrop-filter:saturate(160%) blur(6px);
}
.site-header .container{
  display:flex;align-items:center;gap:28px;height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:26px;height:26px;border-radius:8px;flex-shrink:0;
  background:
    linear-gradient(135deg,var(--brand) 0 55%,var(--accent) 55% 100%);
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.5);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px 7px auto 7px;height:2px;
  background:rgba(255,255,255,.85);border-radius:2px;
}
.brand-text{font-size:18px;font-weight:700;color:var(--brand-dark);letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px;flex:1 1 auto}
.main-nav a{
  position:relative;font-size:15px;color:var(--text);white-space:nowrap;padding:6px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:3px;width:0;
  background:var(--accent);border-radius:2px;transition:width .18s ease;
}
.main-nav a:hover{color:var(--brand)}
.main-nav a:hover::after,.main-nav a.active::after{width:60%}
.main-nav a.active{color:var(--brand);font-weight:600}
.header-right{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 10px 0 14px;
  background:var(--surface-alt);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  transition:border-color .15s ease,background .15s ease;
}
.cmd-search:focus-within{border-color:var(--brand);background:#fff}
.cmd-search i{color:var(--text-muted);font-size:13px}
.cmd-search input{
  width:180px;border:0;background:transparent;outline:none;font-size:14px;
}
.cmd-search input::placeholder{color:#8E9C97}
.cmd-kbd{
  font-size:11px;color:var(--text-muted);background:#fff;
  border:1px solid var(--line);border-radius:6px;padding:1px 6px;white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--radius-btn);
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;color:var(--text-muted);
  transition:all .15s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;border:0;
  transition:background .15s ease,transform .15s ease,box-shadow .15s ease;
}
.btn-brand:hover{background:#0C5A4B;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  background:#fff;color:var(--text);font-size:15px;font-weight:600;
  border:1px solid var(--line);transition:all .15s ease;
}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--radius-btn);
  background:var(--accent);color:#1D2B16;font-size:14px;font-weight:700;border:0;
  transition:filter .15s ease,transform .15s ease;
}
.btn-accent:hover{filter:brightness(.94);transform:translateY(-1px);color:#1D2B16}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--text);
}

/* ============ 面包屑 & 页头 ============ */
.crumbs{font-size:13px;color:var(--text-muted);padding:22px 0 0}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{margin:0 6px;color:#B6C0BC}
.crumbs strong{color:var(--text);font-weight:600}

.page-head{padding:14px 0 26px;border-bottom:1px solid var(--line);background:
  linear-gradient(180deg,var(--surface) 0%,var(--bg) 100%)}
.head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.head-row h1{
  font-size:38px;line-height:1.25;font-weight:700;
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
.head-row h1 .h1-tag{
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--radius-pill);
  padding:5px 14px;letter-spacing:0;
}
.head-lead{
  max-width:720px;margin:12px 0 0;font-size:15.5px;color:var(--text-muted);line-height:1.85;
}
.head-tools{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.tool-count{font-size:14px;color:var(--text-muted)}
.tool-count b{color:var(--brand-dark);font-weight:700}
.sort-select{
  height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;padding:0 14px;font-size:14px;color:var(--text);
  transition:border-color .15s ease;
}
.sort-select:focus{border-color:var(--brand);outline:none}
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.chip{
  font-size:13.5px;padding:7px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:#fff;color:var(--text-muted);
  transition:all .15s ease;cursor:pointer;
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.active{
  background:var(--brand-soft);border-color:var(--brand);
  color:var(--brand);font-weight:600;
}

/* ============ 分栏主体 ============ */
.page-body{
  display:grid;grid-template-columns:260px minmax(0,1fr);gap:32px;
  padding:40px 0 72px;align-items:start;
}
.side-filter{
  position:sticky;top:84px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
  padding:22px 20px;
}
.filter-group + .filter-group{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.filter-group h4{
  font-size:14px;font-weight:700;color:var(--brand-dark);margin-bottom:12px;
  display:flex;align-items:center;justify-content:space-between;
}
.filter-group h4 i{color:var(--text-muted);font-size:12px}
.filter-list li + li{margin-top:9px}
.filter-list label{
  display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-muted);
  cursor:pointer;transition:color .15s ease;
}
.filter-list label:hover{color:var(--brand)}
.filter-list input[type="checkbox"],.filter-list input[type="radio"]{
  width:16px;height:16px;accent-color:var(--brand);cursor:pointer;flex-shrink:0;
}
.filter-list .cnt{margin-left:auto;font-size:12px;color:#9AA7A2}
.side-card{
  margin-top:24px;padding:18px;border-radius:var(--radius-card);
  background:var(--brand-soft);border:1px solid #CFE6DF;
}
.side-card h5{font-size:15px;margin-bottom:8px;color:var(--brand-dark)}
.side-card p{font-size:13.5px;color:#3E5750;margin:0 0 14px;line-height:1.7}
.side-card .btn-brand{height:40px;padding:0 18px;font-size:14px;width:100%}

.list-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-bottom:20px;flex-wrap:wrap;
}
.list-head h2{font-size:22px}
.list-head span{font-size:13.5px;color:var(--text-muted)}

.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.g-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
  overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.g-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:#D5DED9}
.g-card .thumb{
  position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--surface-alt);
}
.g-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.g-card:hover .thumb img{transform:scale(1.03)}
.g-card .badge-row{position:absolute;top:12px;left:12px;display:flex;gap:6px}
.badge{
  font-size:12px;padding:3px 11px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand);font-weight:600;line-height:1.7;
}
.badge.accent{background:var(--accent);color:#20300F}
.badge.warn{background:#FFE7DC;color:#B5430E}
.g-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.g-card .cat{font-size:12.5px;color:var(--brand);font-weight:600;margin-bottom:6px}
.g-card h3{font-size:17.5px;line-height:1.5;margin-bottom:8px}
.g-card .desc{font-size:13.5px;color:var(--text-muted);line-height:1.7;margin:0 0 12px}
.g-card .spec{
  display:flex;flex-wrap:wrap;gap:6px 14px;font-size:12.5px;color:var(--text-muted);
  padding-top:12px;border-top:1px dashed var(--line);margin-bottom:14px;
}
.g-card .spec i{color:var(--brand);margin-right:4px;font-size:11px}
.price-row{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-top:auto}
.price{display:flex;align-items:baseline;gap:8px}
.price .now{
  font-size:23px;font-weight:700;color:var(--warn);line-height:1;
  font-variant-numeric:tabular-nums;
}
.price .now small{font-size:13px;font-weight:600;margin-right:1px}
.price .was{
  font-size:13px;color:#9AA7A2;text-decoration:line-through;
  font-variant-numeric:tabular-nums;
}
.price-note{font-size:12px;color:var(--text-muted);margin-top:2px}

.pager{display:flex;gap:8px;justify-content:center;align-items:center;margin-top:36px}
.pager a,.pager span{
  min-width:36px;height:36px;padding:0 12px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;border:1px solid var(--line);background:#fff;color:var(--text-muted);
  transition:all .15s ease;
}
.pager a:hover{border-color:var(--brand);color:var(--brand)}
.pager .current{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* ============ FAQ ============ */
.faq-section{padding:72px 0;background:var(--surface-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:29px;line-height:1.35;margin-bottom:10px}
.section-head p{font-size:15px;color:var(--text-muted);margin:0}
.faq-list{max-width:860px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);margin-bottom:12px;overflow:hidden;
}
.faq-item .q{
  width:100%;text-align:left;background:none;border:0;cursor:pointer;
  padding:18px 22px;display:flex;align-items:center;gap:14px;
  font-size:16px;font-weight:600;color:var(--brand-dark);line-height:1.6;
}
.faq-item .q:hover{color:var(--brand)}
.faq-item .q .sign{
  margin-left:auto;flex-shrink:0;width:24px;height:24px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;
}
.faq-item .a{
  max-height:0;overflow:hidden;transition:max-height .25s ease;
}
.faq-item.open .a{max-height:400px}
.faq-item .a p{
  padding:0 22px 20px;margin:0;font-size:15px;color:var(--text-muted);line-height:1.85;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background:var(--brand-dark);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.20;
}
.cta-band::after{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent);
}
.cta-inner{position:relative;z-index:1;padding:64px 0;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:28px;line-height:1.4;margin-bottom:8px}
.cta-inner p{color:#C6D9D3;font-size:15px;margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-brand{background:var(--accent);color:#1D2B16}
.cta-band .btn-brand:hover{background:#C7E02C;color:#1D2B16}
.cta-band .btn-outline{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.cta-band .btn-outline:hover{border-color:#fff;color:#fff}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-dark);color:#C6D9D3;position:relative;
  border-top:2px solid var(--accent);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding:56px 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-text{color:#fff;font-size:18px;font-weight:700}
.footer-desc{font-size:14px;line-height:1.8;color:#9DB8B0;margin:0;max-width:260px}
.site-footer h5{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.site-footer ul li{margin-bottom:10px}
.site-footer ul a{font-size:14px;color:#A9C2BB}
.site-footer ul a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:9px;font-size:13.5px;color:#A9C2BB;line-height:1.7}
.footer-contact i{color:var(--accent);font-size:13px;margin-top:5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8AA8A0;
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .page-body{grid-template-columns:230px minmax(0,1fr);gap:26px}
  .cmd-search input{width:140px}
}
@media (max-width:1024px){
  .main-nav{gap:18px}
  .main-nav a{font-size:14px}
  .cmd-search{display:none}
  .icon-btn.desk{display:none}
}
@media (max-width:992px){
  .site-header .container{height:56px;gap:12px}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .main-nav{
    display:none;position:fixed;top:56px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);flex-direction:column;align-items:stretch;
    gap:0;padding:78px 20px 24px;max-height:calc(100vh - 56px);overflow:auto;
  }
  .site-header.menu-open .main-nav{display:flex}
  .main-nav a{padding:14px 2px;border-bottom:1px solid var(--line);font-size:16px}
  .main-nav a::after{display:none}
  .main-nav a.active{color:var(--brand)}
  .site-header.menu-open .cmd-search{
    display:flex;position:fixed;top:66px;left:20px;right:20px;z-index:110;background:#fff;
  }
  .site-header.menu-open .cmd-search input{width:100%}
  .page-body{grid-template-columns:1fr;padding:28px 0 56px}
  .side-filter{position:static}
  .filter-group + .filter-group{margin-top:0;padding-top:0;border-top:0}
  .side-filter{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 24px}
  .filter-group{border-top:0!important;padding-top:0!important;margin-top:0!important}
  .side-card{grid-column:1/-1;margin-top:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:44px 0 32px}
}
@media (max-width:768px){
  .head-row h1{font-size:30px}
  .grid-2{grid-template-columns:1fr}
  .cta-inner{padding:48px 0}
  .cta-inner h2{font-size:23px}
  .section-head h2{font-size:24px}
  .faq-section{padding:56px 0}
}
@media (max-width:576px){
  .container{padding:0 16px}
  .head-row h1{font-size:27px}
  .head-lead{font-size:15px}
  .head-tools{width:100%}
  .sort-select{width:100%}
  .side-filter{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
  .cta-actions{width:100%}
  .cta-actions .btn-brand,.cta-actions .btn-outline{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .g-card:hover{transform:none}
  .g-card:hover .thumb img{transform:none}
}

/* roulang page: category4 */
:root{
  --brand:#0F6E5C;
  --brand-dark:#083A31;
  --brand-soft:#E4F2EE;
  --accent:#D8F135;
  --warn:#FF7A3D;
  --bg:#F7F7F4;
  --surface:#FFFFFF;
  --surface-alt:#F0F2EE;
  --text:#14201C;
  --text-muted:#5A6B65;
  --line:#E3E7E3;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(16,24,20,.06);
  --shadow-md:0 8px 24px rgba(16,24,20,.08);
  --shadow-lg:0 20px 48px rgba(16,24,20,.12);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--brand-dark);font-weight:700;letter-spacing:-0.01em;line-height:1.35;}
h1{font-size:clamp(28px,3.6vw,44px);line-height:1.25;}
h2{font-size:clamp(23px,2.4vw,30px);}
h3{font-size:17px;font-weight:600;line-height:1.5;}
h4{font-size:15px;font-weight:600;line-height:1.5;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
a{color:var(--brand);text-decoration:none;transition:color .15s ease,background-color .15s ease,border-color .15s ease,transform .15s ease;}
a:hover{color:var(--brand-dark);}
img{max-width:100%;height:auto;display:block;}
button{font:inherit;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部命令栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  height:64px;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  transition:background-color .2s ease,box-shadow .2s ease;
}
.site-header.scrolled{background:rgba(255,255,255,.93);box-shadow:var(--shadow-md);backdrop-filter:blur(10px);}
.site-header>.container{height:100%;display:flex;align-items:center;gap:18px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--brand-dark);}
.brand:hover{color:var(--brand-dark);}
.brand-mark{position:relative;width:30px;height:30px;border-radius:9px;background:var(--brand-dark);flex:0 0 auto;overflow:hidden;}
.brand-mark::before{content:"";position:absolute;left:6px;top:6px;width:18px;height:8px;border-radius:3px;background:var(--accent);transform:skewX(-14deg);}
.brand-mark::after{content:"";position:absolute;left:6px;top:17px;width:12px;height:7px;border-radius:3px;background:#fff;opacity:.92;transform:skewX(-14deg);}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-0.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}
.main-nav a{position:relative;display:inline-block;padding:8px 10px;font-size:15px;color:var(--text);border-radius:8px;}
.main-nav a:hover{color:var(--brand);background:var(--brand-soft);}
.main-nav a.active{color:var(--brand-dark);font-weight:600;}
.main-nav a.active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:0;width:60%;height:3px;border-radius:2px;background:var(--accent);}
.header-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  background:var(--surface-alt);min-width:250px;
  transition:border-color .16s ease,box-shadow .16s ease,background-color .16s ease;
}
.cmd-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(15,110,92,.12);}
.cmd-search i{color:var(--text-muted);font-size:13px;}
.cmd-search input{border:0;background:transparent;outline:none;font-size:14px;width:100%;color:var(--text);font-family:inherit;}
.cmd-search input::placeholder{color:#93A29C;}
.cmd-kbd{font-size:11px;color:var(--text-muted);border:1px solid var(--line);border-radius:6px;padding:1px 6px;background:#fff;white-space:nowrap;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-muted);background:#fff;transition:all .16s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px);box-shadow:var(--shadow-sm);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand-dark);
  align-items:center;justify-content:center;cursor:pointer;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;font-family:inherit;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:#0c5b4c;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#14201C;}
.btn-accent:hover{filter:brightness(.95);transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-sm{height:36px;padding:0 14px;font-size:14px;border-radius:9px;}
.btn-lg{height:50px;padding:0 28px;font-size:16px;}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;}

/* ---------- 通用标签 ---------- */
.badge-soft{
  display:inline-block;font-size:12.5px;line-height:1.7;
  padding:2px 10px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand-dark);font-weight:600;
}
.badge-new{background:var(--accent);color:#14201C;}
.badge-hot{background:#FFE9DE;color:#B84A17;}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-size:13.5px;color:var(--text-muted);padding:22px 0 0;
}
.crumb a{color:var(--text-muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#B9C2BD;}
.crumb .current{color:var(--text);font-weight:600;}

/* ---------- 分类页头 ---------- */
.list-head{padding:14px 0 26px;border-bottom:1px solid var(--line);}
.list-head h1{margin-bottom:0;}
.list-head .lede{max-width:860px;margin-top:14px;font-size:16.5px;color:var(--text-muted);line-height:1.85;}
.head-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:24px;}
.stat-num{font-size:22px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.3;}
.stat-label{font-size:13px;color:var(--text-muted);}

/* ---------- 筛选条 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  padding:14px 18px;margin:26px 0 30px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
}
.chips{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  font-size:13.5px;padding:6px 15px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:#fff;color:var(--text-muted);
  cursor:pointer;transition:all .16s ease;font-family:inherit;
}
.chip:hover{border-color:var(--brand);color:var(--brand);}
.chip.on{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);font-weight:600;}
.sort-box{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-muted);}
select.sort{
  height:40px;padding:0 12px;border:1px solid var(--line);
  border-radius:var(--radius-btn);background:#fff;color:var(--text);
  font-size:14px;font-family:inherit;outline:none;cursor:pointer;
}
select.sort:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,110,92,.12);}

/* ---------- FAQ（位于清单上方） ---------- */
.faq-block{margin:0 0 34px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:6px 22px 4px;}
.faq-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:18px 0 6px;}
.faq-head h2{font-size:20px;}
.faq-head span{font-size:13.5px;color:var(--text-muted);}
.faq-item{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:15px 0;font-size:16px;font-weight:600;color:var(--brand-dark);
  transition:color .15s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary::after{content:"+";font-weight:400;font-size:20px;color:var(--brand);line-height:1;}
.faq-item[open] summary::after{content:"−";}
.faq-item p{padding:0 0 18px;margin:0;font-size:15px;line-height:1.85;color:var(--text-muted);max-width:920px;}

/* ---------- 紧凑列表 ---------- */
.section-title{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:16px;flex-wrap:wrap;}
.section-title h2{font-size:clamp(21px,2.2vw,26px);}
.section-title span{font-size:13.5px;color:var(--text-muted);}
.list-wrap{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;
}
.row-item{
  display:flex;align-items:center;gap:18px;
  padding:16px 20px;border-bottom:1px solid var(--line);
  transition:background-color .16s ease;
}
.row-item:last-child{border-bottom:0;}
.row-item:hover{background:var(--surface-alt);}
.row-thumb{
  width:96px;height:72px;flex:0 0 auto;overflow:hidden;
  border-radius:var(--radius-img);background:var(--surface-alt);
}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease;}
.row-item:hover .row-thumb img{transform:scale(1.03);}
.row-body{flex:1 1 auto;min-width:0;}
.row-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.row-body h3{margin:0;}
.row-body h3 a{color:var(--brand-dark);}
.row-body h3 a:hover{color:var(--brand);}
.row-desc{
  margin:5px 0 0;font-size:14px;color:var(--text-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.row-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:6px;font-size:12.5px;color:#8B9993;}
.row-side{
  flex:0 0 auto;min-width:132px;
  display:flex;flex-direction:column;align-items:flex-end;gap:8px;text-align:right;
}
.price-box{display:flex;align-items:baseline;gap:8px;justify-content:flex-end;}
.price{font-size:22px;font-weight:700;color:var(--warn);font-variant-numeric:tabular-nums;line-height:1.2;}
.price-old{font-size:13px;color:#9AA6A0;text-decoration:line-through;}

/* ---------- 分页器 ---------- */
.pager{display:flex;justify-content:center;gap:8px;margin-top:26px;}
.pager a{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;background:#fff;
  font-size:14px;color:var(--text);
}
.pager a:hover{border-color:var(--brand);color:var(--brand);}
.pager a.on{background:var(--brand);border-color:var(--brand);color:#fff;}
.pager a.on:hover{color:#fff;}
.pager-mobile{display:none;justify-content:center;gap:10px;margin-top:24px;}

/* ---------- 服务保障条 ---------- */
.assure{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  background:var(--brand-soft);border-radius:var(--radius-card);
  padding:24px;margin-top:36px;
}
.assure-item{display:flex;gap:12px;align-items:flex-start;}
.assure-item i{font-size:20px;color:var(--brand);margin-top:2px;line-height:1.2;}
.assure-item h4{margin:0 0 3px;color:var(--brand-dark);}
.assure-item p{margin:0;font-size:13px;line-height:1.6;color:var(--text-muted);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  margin:52px 0 0;padding:46px 44px;
  border-radius:var(--radius-card);
  background:var(--brand-dark);color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;opacity:.15;
}
.cta-band::after{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--accent);}
.cta-band>*{position:relative;z-index:1;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.3vw,28px);margin-bottom:8px;}
.cta-band p{color:#C6D8D3;font-size:15px;margin:0;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-dark);color:#D8E4E0;
  margin-top:64px;border-top:2px solid var(--accent);
  padding:56px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-desc{font-size:14px;line-height:1.8;color:#9FB6B0;margin-top:14px;max-width:290px;}
.site-footer h5{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul a{color:#B8CBC6;font-size:14px;}
.site-footer ul a:hover{color:var(--accent);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#B8CBC6;align-items:flex-start;line-height:1.7;}
.footer-contact i{margin-top:5px;font-size:13px;color:#8FBFB2;}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:44px;padding:20px 0 26px;font-size:13px;color:#8FA8A2;
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .cmd-search{min-width:200px;}
  .main-nav a{padding:8px 8px;font-size:14.5px;}
}
@media (max-width:992px){
  .site-header{height:56px;}
  .site-header>.container{gap:12px;}
  .main-nav{
    display:none;
    position:fixed;top:56px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    margin:0;padding:16px 20px 22px;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
    max-height:calc(100vh - 56px);overflow:auto;
  }
  .main-nav.open{display:flex;}
  .main-nav a{padding:12px 10px;font-size:16px;border-radius:10px;}
  .main-nav a.active::after{left:10px;transform:none;bottom:6px;width:42px;}
  .nav-toggle{display:inline-flex;}
  .cmd-search{min-width:0;flex:1 1 auto;}
  .cmd-kbd{display:none;}
  .icon-btn.desk{display:none;}
  .header-right .btn-brand{display:none;}
  .main-nav.open + .header-right{position:static;}
  .assure{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .head-stats{gap:24px;}
  .row-item{flex-wrap:wrap;gap:14px;padding:14px 16px;}
  .row-thumb{width:84px;height:64px;}
  .row-body{flex:1 1 60%;}
  .row-side{
    width:100%;min-width:0;flex-direction:row;align-items:center;
    justify-content:space-between;text-align:left;gap:12px;
  }
  .price-box{justify-content:flex-start;}
  .cta-band{padding:32px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .faq-block{padding:4px 16px;}
}
@media (max-width:576px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .site-header .brand-text{font-size:16px;}
  .cmd-search{height:36px;padding:0 10px;}
  .list-head{padding:10px 0 22px;}
  .head-stats{gap:20px;}
  .stat-num{font-size:19px;}
  .filter-bar{padding:12px 14px;}
  .sort-box{margin-left:0;width:100%;}
  select.sort{flex:1 1 auto;}
  .assure{grid-template-columns:1fr;padding:20px;gap:16px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .pager{display:none;}
  .pager-mobile{display:flex;}
  .pager-mobile .btn{flex:1 1 auto;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .row-item:hover .row-thumb img{transform:none;}
}