/* roulang page: index */
:root{
  --ink:#16211E;
  --ink-2:#5A6661;
  --ink-3:#8A948F;
  --brand:#0F4C3F;
  --brand-d:#0A3A30;
  --brand-l:#17695A;
  --brand-10:#EAF3F0;
  --amber:#E07A2F;
  --amber-l:#F2A03D;
  --ok:#2FB59A;
  --warn:#C8452F;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --dark:#0C2B25;
  --line:#E3DED3;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-cta:18px;
  --sh-1:0 1px 2px rgba(12,43,37,.06),0 6px 18px rgba(12,43,37,.08);
  --sh-2:0 14px 32px rgba(12,43,37,.14);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-l);}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em;line-height:1.35;}
p{margin:0 0 1.2em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section-tight{padding:64px 0;}
.bg-soft{background:var(--brand-10);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1;
  padding:14px 24px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--amber);color:#fff;box-shadow:0 6px 16px rgba(224,122,47,.26);}
.btn-primary:hover{background:#d16d24;color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px rgba(224,122,47,.32);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-outline:hover{background:var(--brand-10);color:var(--brand-d);}
.btn-dark{background:var(--brand);color:#fff;}
.btn-dark:hover{background:var(--brand-l);color:#fff;transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;border-bottom:1px dashed currentColor;}
.link-arrow:hover{border-bottom-style:solid;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-block;font-size:12px;font-weight:600;line-height:1.6;
  padding:3px 12px;border-radius:999px;
  background:var(--brand-10);color:var(--brand);
}
.badge-amber{background:rgba(224,122,47,.12);color:#B85F1F;}
.badge-soft{background:#F2F7F4;color:var(--brand-l);}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-10);border:1px solid rgba(15,76,63,.14);
  padding:6px 14px;border-radius:999px;
}
.tag::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--amber);transform:rotate(45deg);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--brand-d);letter-spacing:-.01em;flex:0 0 auto;}
.brand:hover{color:var(--brand-l);}
.brand-mark{
  width:22px;height:22px;flex:0 0 22px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-l) 100%);
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
  border-radius:5px;
}
.footer-brand .brand{font-size:18px;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:#3C4A45;padding:6px 0;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--brand);
  align-items:center;justify-content:center;font-size:18px;cursor:pointer;
}
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--bg);
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:20px 20px 28px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand);font-size:18px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  min-height:44px;display:flex;align-items:center;
  font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);padding:10px 4px;
}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-foot{margin-top:auto;padding-top:24px;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 84px;}
.hero::before{
  content:"";position:absolute;top:-16%;right:-10%;width:56%;height:130%;
  background:var(--brand);opacity:.06;
  transform:skewX(-10deg);border-radius:32px;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line);
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.hero h1{
  font-size:clamp(28px,4.6vw,42px);line-height:1.28;font-weight:800;
  letter-spacing:-.01em;margin:18px 0 18px;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.trust-badges{display:flex;flex-wrap:wrap;gap:14px 26px;}
.trust-badges li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);font-weight:600;}
.trust-badges i{color:var(--ok);font-size:15px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:16px;box-shadow:var(--sh-2);
  background:var(--brand-10);
}
.hero-float{
  position:absolute;left:-18px;bottom:22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:14px 18px;max-width:250px;
}
.hero-float strong{display:block;font-size:15px;color:var(--brand-d);margin-bottom:2px;}
.hero-float span{font-size:13px;color:var(--ink-3);}

/* ---------- 板块标题 ---------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:44px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;}
.section-head .lead{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:640px;margin-bottom:0;}
.head-side{font-size:15px;font-weight:600;}

/* ---------- 卡片 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,76,63,.3);}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--brand-10);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:19px;line-height:1.5;}
.card-body p{font-size:15px;color:var(--ink-2);margin:0;line-height:1.75;}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px;font-size:13px;color:var(--ink-3);}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- Bento 网格 ---------- */
.bento-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:22px;margin-bottom:22px;}
.bento-bottom{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.bento-top .card-lg .card-media{aspect-ratio:16/9;}
.bento-top .card-lg .card-body h3{font-size:23px;}
.bento-top .card-lg .card-body p{font-size:16px;}
.bento-top .card-sm .card-body h3{font-size:17px;}
.bento-top .card-sm .card-body p{font-size:14px;}

/* ---------- 保障条 ---------- */
.guard{background:var(--dark);color:#fff;padding:0;}
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.guard-item{
  padding:34px 26px;border-right:1px solid rgba(255,255,255,.12);
  display:flex;flex-direction:column;gap:8px;
}
.guard-item:last-child{border-right:0;}
.guard-item i{font-size:20px;color:var(--amber-l);}
.guard-item strong{font-size:16px;color:#fff;font-weight:700;}
.guard-item span{font-size:13.5px;color:rgba(255,255,255,.7);line-height:1.7;}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);position:relative;
}
.step-no{
  width:38px;height:38px;border-radius:10px;background:var(--brand-10);
  color:var(--brand);font-weight:800;font-size:16px;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--ink-2);margin:0;line-height:1.75;}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
}
.stat strong{
  display:block;font-size:32px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat b{display:block;font-size:15px;font-weight:700;margin:6px 0 6px;}
.stat span{font-size:13.5px;color:var(--ink-2);}

/* ---------- 评价轮播 ---------- */
.review-track{
  display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 20px;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 calc((100% - 44px)/3);scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:12px;
}
.review-head{display:flex;align-items:center;gap:12px;}
.avatar{
  width:42px;height:42px;border-radius:50%;flex:0 0 42px;
  background:var(--brand-10);color:var(--brand);font-weight:700;
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.review-head b{display:block;font-size:15px;}
.review-head em{font-style:normal;font-size:12.5px;color:var(--ink-3);}
.stars{color:var(--amber-l);font-size:13px;letter-spacing:2px;}
.review-card p{font-size:14.5px;color:var(--ink-2);margin:0;line-height:1.8;}
.review-controls{display:flex;gap:12px;justify-content:flex-end;margin-top:8px;}
.round-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--brand);cursor:pointer;font-size:16px;
  display:flex;align-items:center;justify-content:center;
  transition:background-color .18s ease,border-color .18s ease,transform .18s ease;
}
.round-btn:hover{background:var(--brand-10);border-color:rgba(15,76,63,.3);transform:translateY(-1px);}

/* ---------- 最新信息 ---------- */
.latest-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:26px;align-items:start;}
.latest-feature{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.latest-feature:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,76,63,.3);}
.latest-feature-media{aspect-ratio:16/9;background:var(--brand-10);overflow:hidden;}
.latest-feature-media img{width:100%;height:100%;object-fit:cover;}
.latest-feature-body{padding:24px;display:flex;flex-direction:column;gap:12px;}
.latest-feature-body h3{font-size:21px;line-height:1.5;}
.latest-feature-body p{font-size:15px;color:var(--ink-2);margin:0;line-height:1.75;}
.latest-list{display:flex;flex-direction:column;gap:14px;}
.latest-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;display:flex;flex-direction:column;gap:8px;
  box-shadow:var(--sh-1);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.latest-item:hover{transform:translateY(-2px);border-color:rgba(15,76,63,.3);box-shadow:var(--sh-2);}
.latest-item h4{font-size:16px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.latest-item .meta{font-size:13px;color:var(--ink-3);}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:52px 24px;text-align:center;color:var(--ink-2);
}
.empty-state i{font-size:28px;color:var(--brand-l);display:block;margin-bottom:12px;}
.empty-state p{margin:0 0 16px;font-size:15px;}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;cursor:pointer;
  padding:22px 44px 22px 22px;position:relative;
  font-size:17px;font-weight:700;color:var(--ink);line-height:1.6;
  border-left:4px solid transparent;transition:background-color .2s ease,border-color .2s ease;
}
.faq-q:hover{background:#F2F7F4;}
.faq-item.is-open .faq-q{border-left-color:var(--brand);color:var(--brand-d);}
.faq-q::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand-l);line-height:1;
}
.faq-item.is-open .faq-q::after{content:"−";}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a p{margin:0;padding:0 24px 22px 26px;font-size:15px;line-height:1.8;color:var(--ink-2);}

/* ---------- CTA ---------- */
.cta-card{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-l) 100%);
  border-radius:var(--r-cta);padding:52px 48px;color:#fff;
  display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center;
}
.cta-card h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.4;margin-bottom:14px;}
.cta-card p{color:rgba(255,255,255,.82);font-size:15.5px;margin:0 0 8px;max-width:620px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-note{font-size:12.5px;color:rgba(255,255,255,.66);margin:14px 0 0;}
.cta-form{display:flex;gap:10px;margin-top:22px;max-width:520px;}
.cta-form input{
  flex:1;height:48px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.1);color:#fff;padding:0 16px;
}
.cta-form input::placeholder{color:rgba(255,255,255,.6);}
.cta-form input:focus{outline:none;border-color:var(--amber-l);box-shadow:0 0 0 3px rgba(242,160,61,.28);}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding-top:64px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px;}
.footer-brand p{font-size:14px;color:var(--ink-2);margin:16px 0 0;line-height:1.8;max-width:360px;}
.site-footer h4{font-size:15px;margin-bottom:16px;color:var(--brand-d);}
.site-footer ul li{margin-bottom:11px;}
.site-footer ul a{font-size:14.5px;color:var(--ink-2);}
.site-footer ul a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-3);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--sec:64px;}
  .hero{padding:56px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-sub{max-width:none;}
  .bento-top{grid-template-columns:1fr 1fr;}
  .bento-top .card-lg{grid-column:span 2;}
  .bento-bottom{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .stats{grid-template-columns:1fr 1fr;}
  .guard-grid{grid-template-columns:1fr 1fr;}
  .guard-item:nth-child(2){border-right:0;}
  .guard-item:nth-child(1),.guard-item:nth-child(2){border-bottom:1px solid rgba(255,255,255,.12);}
  .review-card{flex:0 0 calc((100% - 22px)/2);}
  .latest-grid{grid-template-columns:1fr;}
  .cta-card{grid-template-columns:1fr;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:900px){
  .main-nav{display:none;}
  .nav-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{height:60px;}
}
@media screen and (max-width:640px){
  :root{--sec:48px;}
  .container{padding:0 18px;}
  body{font-size:16px;}
  .hero{padding:40px 0 52px;}
  .hero-float{left:8px;bottom:12px;padding:12px 14px;}
  .section-head{margin-bottom:30px;}
  .bento-top{grid-template-columns:1fr;gap:18px;}
  .bento-top .card-lg{grid-column:span 1;}
  .bento-bottom{grid-template-columns:1fr;gap:18px;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .stats{grid-template-columns:1fr 1fr;gap:14px;}
  .guard-grid{grid-template-columns:1fr;}
  .guard-item{border-right:0;border-bottom:1px solid rgba(255,255,255,.12);}
  .guard-item:last-child{border-bottom:0;}
  .review-card{flex:0 0 88%;}
  .cta-card{padding:32px 22px;}
  .cta-form{flex-direction:column;}
  .cta-form input,.cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: article */
:root{
  --green-900:#0A3A30;
  --green-700:#0F4C3F;
  --green-500:#17695A;
  --green-050:#EAF3F0;
  --amber:#E07A2F;
  --amber-light:#F2A03D;
  --ok:#2FB59A;
  --warn:#C8452F;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --dark:#0C2B25;
  --line:#E3DED3;
  --text:#16211E;
  --text-2:#5A6661;
  --text-3:#8A948F;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --r-cta:18px;
  --sh-1:0 1px 2px rgba(12,43,37,.06), 0 6px 18px rgba(12,43,37,.08);
  --sh-2:0 14px 32px rgba(12,43,37,.14);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--green-700);text-decoration:none;transition:color .18s ease,border-color .18s ease;}
a:hover{color:var(--green-500);}
button{font-family:inherit;}
ul,ol{padding-left:1.2em;}
h1,h2,h3,h4{letter-spacing:-.01em;color:var(--text);margin:0;}
p{margin:0;}
table{border-collapse:collapse;width:100%;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sec) 0;}
.section-tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head h2{font-size:clamp(22px,2.4vw,29px);font-weight:700;line-height:1.35;}
.section-head .sub{font-size:14px;color:var(--text-3);margin-top:8px;}
.text-link{
  font-size:14px;font-weight:600;color:var(--green-700);
  border-bottom:1px dashed var(--green-500);padding-bottom:2px;
}
.text-link:hover{border-bottom-style:solid;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--green-700);
  background:var(--green-050);border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:16px;
}
.badge{
  display:inline-block;font-size:12px;font-weight:600;
  padding:3px 10px;border-radius:var(--r-pill);
  background:var(--green-050);color:var(--green-700);line-height:1.6;
}
.badge-amber{background:#FDF1E6;color:#B45C18;}
.badge-dark{background:rgba(255,255,255,.14);color:#F4F1EA;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:26px;height:26px;border-radius:7px;
  background:linear-gradient(135deg,var(--green-700),var(--green-500));
  position:relative;flex-shrink:0;
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:50%;
  width:9px;height:9px;border-radius:2px;
  background:var(--amber);
  transform:translate(-50%,-50%) rotate(45deg);
}
.brand-text{font-size:17px;font-weight:800;color:var(--green-900);letter-spacing:-.01em;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto;}
.main-nav .nav-link{
  font-size:15px;font-weight:600;color:var(--text-2);
  padding:22px 0;border-bottom:2px solid transparent;position:relative;
}
.main-nav .nav-link:hover{color:var(--green-700);}
.main-nav .nav-link.is-active{color:var(--green-700);border-bottom-color:var(--amber);}
.header-cta{margin-left:6px;}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;color:var(--green-700);font-size:18px;cursor:pointer;
}
.nav-toggle:focus-visible{outline:2px solid var(--green-700);outline-offset:2px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-btn);border:1px solid transparent;
  padding:14px 24px;cursor:pointer;text-decoration:none;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:focus-visible{outline:2px solid var(--green-700);outline-offset:2px;}
.btn-primary{background:var(--amber);color:#fff;box-shadow:0 6px 16px rgba(224,122,47,.24);}
.btn-primary:hover{background:#C96A22;color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(224,122,47,.3);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(224,122,47,.22);}
.btn-ghost{background:transparent;color:var(--green-700);border-color:var(--green-700);}
.btn-ghost:hover{background:var(--green-050);color:var(--green-700);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- article head ---------- */
.article-hero{
  background:
    linear-gradient(180deg,rgba(234,243,240,.9),rgba(247,245,240,0) 70%),
    repeating-linear-gradient(90deg,rgba(15,76,63,.05) 0 1px,transparent 1px 72px),
    var(--bg);
  border-bottom:1px solid var(--line);
  padding:44px 0 44px;
}
.crumbs{font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--green-700);}
.crumbs .sep{color:var(--line);}
.article-hero h1{
  font-size:clamp(28px,4.6vw,42px);
  line-height:1.28;
  font-weight:800;
  margin:18px 0 20px;
  max-width:900px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.meta-row .meta-strong{color:var(--text-2);font-weight:600;}

/* ---------- article body ---------- */
.article-wrap{padding:56px 0 24px;}
.article-body{
  max-width:820px;margin:0 auto;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:44px 48px 48px;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;font-size:17px;line-height:1.9;}
.article-body h2{
  font-size:clamp(21px,2.2vw,26px);line-height:1.4;font-weight:700;
  margin:2.2em 0 .8em;padding-left:14px;border-left:4px solid var(--green-700);
}
.article-body h3{font-size:19px;line-height:1.5;font-weight:700;margin:1.8em 0 .6em;}
.article-body h4{font-size:17px;font-weight:700;margin:1.5em 0 .5em;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em;font-size:17px;line-height:1.9;}
.article-body li{margin-bottom:.45em;}
.article-body blockquote{
  margin:1.5em 0;padding:18px 22px;background:var(--green-050);
  border-left:4px solid var(--green-500);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--green-900);font-size:16.5px;
}
.article-body blockquote p{margin:0;font-size:16.5px;}
.article-body img{border-radius:var(--r-img);margin:1.6em 0;box-shadow:var(--sh-1);}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--text-3);text-align:center;margin-top:-.8em;}
.article-body table{margin:1.6em 0;font-size:15px;border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;}
.article-body thead th{background:var(--green-050);color:var(--green-900);font-weight:700;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}
.article-body a{border-bottom:1px solid rgba(15,76,63,.35);}
.article-body a:hover{border-bottom-color:var(--green-500);}
.article-body code{background:var(--green-050);border-radius:6px;padding:2px 6px;font-size:14.5px;color:var(--green-900);}
.empty-state{
  max-width:820px;margin:0 auto;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:64px 32px;text-align:center;
}
.empty-state .empty-ico{
  width:64px;height:64px;border-radius:16px;margin:0 auto 20px;
  background:var(--green-050);color:var(--green-700);
  display:flex;align-items:center;justify-content:center;font-size:26px;
}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:22px;}
.back-row{max-width:820px;margin:26px auto 0;font-size:14px;}

/* ---------- cards ---------- */
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr));}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,76,63,.3);}
.card-media{position:relative;background:rgba(15,76,63,.08);}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.card-media .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--green-700);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;line-height:1.5;font-weight:700;}
.card-body h3 a{color:var(--text);}
.card-body h3 a:hover{color:var(--green-700);}
.card-body p{font-size:15px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3);padding-top:6px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- dark guarantee bar ---------- */
.guarantee{background:var(--dark);color:#E8EFEC;padding:44px 0;}
.guarantee-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;}
.guarantee-item{padding:8px 26px;display:flex;gap:14px;align-items:flex-start;}
.guarantee-item:not(:last-child){border-right:1px solid rgba(255,255,255,.12);}
.guarantee-item i{color:var(--amber-light);font-size:19px;margin-top:3px;}
.guarantee-item h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:4px;}
.guarantee-item p{font-size:13.5px;color:rgba(232,239,236,.72);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 56px 20px 22px;
  font-size:17px;font-weight:700;color:var(--text);
  border-left:4px solid var(--green-700);transition:background-color .22s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:600;color:var(--green-700);
  transition:transform .22s ease;
}
.faq-item[open] summary{background:#F2F7F4;}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:hover{background:#F2F7F4;}
.faq-answer{padding:2px 56px 22px 22px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-card{
  border-radius:var(--r-cta);
  background:linear-gradient(135deg,var(--green-700),var(--green-500));
  color:#fff;padding:48px 52px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--sh-2);position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border-radius:50%;background:rgba(255,255,255,.06);
}
.cta-card h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;color:#fff;line-height:1.35;margin-bottom:12px;}
.cta-card p{font-size:15px;color:rgba(255,255,255,.82);max-width:620px;}
.cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.62);}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}
.btn-light{background:#fff;color:var(--green-700);}
.btn-light:hover{background:#F2F7F4;color:var(--green-700);transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- footer ---------- */
.site-footer{background:#0A211C;color:rgba(232,239,236,.78);padding:64px 0 0;margin-top:0;border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(232,239,236,.68);margin-bottom:10px;}
.site-footer ul{list-style:none;padding:0;margin:0;}
.site-footer li{margin-bottom:10px;}
.site-footer a{color:rgba(232,239,236,.78);font-size:14px;}
.site-footer a:hover{color:#fff;}
.site-footer .brand-text{color:#fff;}
.footer-brand .brand{margin-bottom:16px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(232,239,236,.56);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--sec:72px;}
  .header-inner{height:64px;gap:18px;}
  .main-nav{gap:20px;}
  .main-nav .nav-link{font-size:14px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .guarantee-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guarantee-item{padding:14px 20px;}
  .guarantee-item:nth-child(2){border-right:0;}
  .guarantee-item:nth-child(odd){border-right:1px solid rgba(255,255,255,.12);}
  .article-body{padding:36px 32px 40px;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-cta{display:none;}
  .main-nav{
    position:fixed;left:0;right:0;top:64px;
    background:rgba(247,245,240,.99);
    border-bottom:1px solid var(--line);
    box-shadow:var(--sh-2);
    flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:8px 18px 22px;
    max-height:calc(100vh - 64px);overflow-y:auto;
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .main-nav .nav-link{
    padding:0;height:48px;display:flex;align-items:center;
    border-bottom:1px solid var(--line);border-left:0;font-size:15px;
  }
  .main-nav .nav-link.is-active{border-bottom:1px solid var(--line);color:var(--green-700);box-shadow:inset 3px 0 0 var(--amber);padding-left:12px;}
  .main-nav .nav-drawer-cta{margin-top:16px;}
}
@media (max-width:768px){
  :root{--sec:56px;}
  .container{padding:0 18px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .card-grid{grid-template-columns:1fr;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:34px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .article-hero{padding:32px 0;}
  .article-wrap{padding:34px 0 12px;}
  .article-body{padding:26px 20px 30px;}
  .article-body p,.article-body ul,.article-body ol{font-size:16px;}
  .guarantee-grid{grid-template-columns:1fr;}
  .guarantee-item{border-right:0 !important;padding:14px 0;}
  .guarantee-item:not(:last-child){border-bottom:1px solid rgba(255,255,255,.12);}
  .faq-item summary{padding:18px 48px 18px 18px;font-size:16px;}
  .faq-answer{padding:2px 22px 20px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .brand-text{font-size:15.5px;}
  .article-hero h1{font-size:26px;}
  .meta-row{font-size:12.5px;gap:10px;}
}

/* roulang page: category1 */
:root{
  --brand:#0F4C3F;
  --brand-dark:#0A3A30;
  --brand-light:#17695A;
  --brand-10:#EAF3F0;
  --brand-soft:#F2F7F4;
  --accent:#E07A2F;
  --accent-hover:#CF6C26;
  --accent-light:#F2A03D;
  --ok:#2FB59A;
  --warn:#C8452F;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --dark:#0C2B25;
  --border:#E3DED3;
  --text:#16211E;
  --text-2:#5A6661;
  --text-3:#8A948F;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-cta:18px;
  --shadow-1:0 1px 2px rgba(12,43,37,.06), 0 6px 18px rgba(12,43,37,.08);
  --shadow-2:0 14px 32px rgba(12,43,37,.14);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-light);}
button{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:700;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--text);letter-spacing:-.01em;}
.brand:hover{color:var(--brand-dark);}
.brand-mark{
  width:22px;height:22px;flex:0 0 22px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-light) 100%);
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
  position:relative;
  box-shadow:0 4px 10px rgba(15,76,63,.26);
}
.brand-mark::after{
  content:"";position:absolute;right:5px;top:5px;width:7px;height:7px;
  background:var(--accent);border-radius:2px;
}
.brand-text{white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-link{position:relative;font-size:15px;font-weight:600;color:var(--text-2);padding:6px 0;}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;margin-left:auto;padding:0 10px;
  background:transparent;border:1px solid var(--border);border-radius:10px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;background:var(--brand);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-drawer{
  position:fixed;left:0;right:0;top:56px;bottom:0;z-index:55;
  background:rgba(247,245,240,.98);
  padding:16px 24px 32px;
  display:flex;flex-direction:column;
  overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-link{
  display:flex;align-items:center;min-height:44px;
  font-size:16px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--border);
}
.drawer-link.is-active{color:var(--brand);}
.drawer-cta{margin-top:20px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(224,122,47,.28);}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px rgba(224,122,47,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(224,122,47,.24);}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(15,76,63,.35);}
.btn-ghost:hover{background:var(--brand-10);color:var(--brand-dark);border-color:rgba(15,76,63,.5);}
.btn-soft{background:#fff;color:var(--brand);border-color:rgba(255,255,255,.4);}
.btn-soft:hover{background:#fff;color:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.text-link{font-weight:700;font-size:14.5px;color:var(--brand);border-bottom:1px dashed currentColor;padding-bottom:1px;}
.text-link:hover{border-bottom-style:solid;color:var(--brand-light);}

/* ---------- tags ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;}
.tag-brand{background:var(--brand-10);color:var(--brand);}
.tag-accent{background:rgba(224,122,47,.14);color:#B85F1B;}
.tag-on-dark{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.22);}

/* ---------- banner ---------- */
.page-banner{position:relative;overflow:hidden;background:var(--dark);color:#fff;}
.banner-media{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.45;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(12,43,37,.93) 0%,rgba(12,43,37,.8) 48%,rgba(23,105,90,.62) 100%);
}
.banner-inner{position:relative;z-index:2;padding:70px 0 76px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:20px;}
.crumb a{color:rgba(255,255,255,.86);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.55;}
.banner-inner h1{
  color:#fff;
  font-size:clamp(28px,4.6vw,42px);
  line-height:1.28;font-weight:800;
  margin:16px 0 0;max-width:900px;
}
.banner-lead{margin-top:16px;max-width:760px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.84);}
.banner-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;font-size:13.5px;color:rgba(255,255,255,.7);}
.banner-meta i{color:var(--ok);margin-right:6px;}

/* ---------- section ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:780px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,3vw,30px);line-height:1.35;font-weight:700;margin-top:14px;}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;}
.on-dark{color:#fff;}
.on-dark h2{color:#fff;}
.on-dark p{color:rgba(255,255,255,.76);}

/* ---------- intro ---------- */
.intro-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:44px;align-items:start;}
.intro-copy p{margin-bottom:1.2em;color:var(--text-2);font-size:16px;}
.intro-copy p:last-child{margin-bottom:0;}
.intro-copy strong{color:var(--text);font-weight:700;}
.check-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
}
.check-card h3{font-size:18px;margin-bottom:8px;}
.check-card .check-sub{font-size:14px;color:var(--text-3);margin-bottom:18px;}
.check-list li{
  position:relative;padding-left:24px;margin-bottom:14px;
  font-size:15px;color:var(--text-2);line-height:1.7;
}
.check-list li:last-child{margin-bottom:0;}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:10px;height:10px;
  border-radius:3px;background:var(--brand-10);border:1px solid var(--brand);
}
.check-list li b{color:var(--text);font-weight:700;}

/* ---------- info cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.info-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(15,76,63,.3);}
.info-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:11px;
  background:var(--brand-10);color:var(--brand);font-size:16px;margin-bottom:16px;
}
.info-card h3{font-size:18px;margin-bottom:10px;}
.info-card p{font-size:15px;color:var(--text-2);line-height:1.8;}

/* ---------- zigzag ---------- */
.zig-list{display:flex;flex-direction:column;gap:28px;}
.zig-row{
  display:grid;grid-template-columns:1.02fr 1fr;gap:40px;align-items:center;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-cta);
  padding:26px;box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.zig-row:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:rgba(15,76,63,.28);}
.zig-row:nth-child(even){grid-template-columns:1fr 1.02fr;}
.zig-row:nth-child(even) .zig-media{order:2;}
.zig-row:nth-child(even) .zig-body{order:1;}
.zig-media{
  border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/10;
  background:rgba(15,76,63,.08);
}
.zig-media img{width:100%;height:100%;object-fit:cover;}
.zig-num{
  display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:999px;
  background:var(--brand-10);color:var(--brand);font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.zig-body h3{font-size:20px;line-height:1.5;margin:14px 0 10px;}
.zig-body > p{font-size:15.5px;color:var(--text-2);margin-bottom:14px;}
.zig-points{margin-bottom:16px;}
.zig-points li{position:relative;padding-left:18px;margin-bottom:8px;font-size:14.5px;color:var(--text-2);line-height:1.75;}
.zig-points li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ---------- dark band ---------- */
.dark-band{background:var(--dark);color:#fff;padding:88px 0;}
.dark-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-card);overflow:hidden;
}
.dark-item{background:#0C2B25;padding:26px 24px;transition:background-color .2s ease;}
.dark-item:hover{background:#102F28;}
.dark-item i{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;
  background:rgba(47,181,154,.16);color:#5FD9BE;font-size:16px;margin-bottom:14px;
}
.dark-item h3{color:#fff;font-size:17px;margin-bottom:10px;font-weight:700;}
.dark-item p{font-size:14.5px;color:rgba(255,255,255,.72);line-height:1.8;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;transition:border-color .22s ease,background-color .22s ease;
}
.faq-item:hover{background:var(--brand-soft);}
.faq-item.is-open{border-color:rgba(15,76,63,.28);background:var(--card);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;border-left:4px solid transparent;
  text-align:left;font-size:17px;font-weight:700;line-height:1.6;color:var(--text);cursor:pointer;
  transition:background-color .22s ease,border-color .22s ease;
}
.faq-item.is-open .faq-q{background:var(--brand-soft);border-left-color:var(--brand);}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a-inner{
  padding:0 24px 22px 24px;margin-left:4px;
  border-left:4px solid var(--brand);
  font-size:15px;line-height:1.8;color:var(--text-2);
}

/* ---------- cta ---------- */
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--radius-cta);
  background:linear-gradient(135deg,#0F4C3F 0%,#17695A 100%);
  color:#fff;padding:46px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
  box-shadow:0 20px 44px rgba(12,43,37,.2);
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  background:rgba(255,255,255,.06);border-radius:36px;transform:rotate(18deg);
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,28px);line-height:1.4;margin-bottom:12px;}
.cta-copy p{color:rgba(255,255,255,.82);font-size:15.5px;}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px;}
.cta-note{grid-column:1/-1;position:relative;z-index:2;font-size:13px;color:rgba(255,255,255,.66);border-top:1px solid rgba(255,255,255,.18);padding-top:16px;margin-top:6px;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);border-top:1px solid rgba(255,255,255,.08);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.site-footer .brand{color:#fff;margin-bottom:16px;}
.site-footer .brand:hover{color:#fff;}
.footer-brand p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.7);margin-bottom:12px;max-width:340px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul li a{font-size:14.5px;color:rgba(255,255,255,.74);}
.site-footer ul li a:hover{color:#fff;}
.footer-bottom{
  margin-top:48px;padding-top:20px;padding-bottom:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13.5px;color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .main-nav{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:56px;}
  .section{padding:64px 0;}
  .section-tight{padding:56px 0;}
  .dark-band{padding:64px 0;}
  .intro-grid{grid-template-columns:1fr;gap:28px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .zig-row,
  .zig-row:nth-child(even){grid-template-columns:1fr;gap:22px;padding:22px;}
  .zig-row:nth-child(even) .zig-media,
  .zig-row:nth-child(even) .zig-body{order:0;}
  .dark-grid{grid-template-columns:repeat(2,1fr);}
  .cta-card{grid-template-columns:1fr;padding:34px;gap:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .banner-inner{padding:56px 0 60px;}
}
@media (min-width:1024px){
  .nav-drawer{display:none;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  body{font-size:16px;}
  .section{padding:48px 0;}
  .section-tight{padding:44px 0;}
  .dark-band{padding:48px 0;}
  .grid-3{grid-template-columns:1fr;}
  .dark-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .faq-q{padding:16px 18px;font-size:16px;}
  .faq-a-inner{padding:0 18px 18px 18px;}
  .cta-card{padding:26px;}
  .cta-actions .btn{width:100%;}
  .banner-inner{padding:44px 0 48px;}
  .banner-meta{gap:14px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --brand:#0F4C3F;
  --brand-dark:#0A3A30;
  --brand-light:#17695A;
  --brand-soft:#EAF3F0;
  --accent:#E07A2F;
  --accent-light:#F2A03D;
  --ok:#2FB59A;
  --warn:#C8452F;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --dark:#0C2B25;
  --line:#E3DED3;
  --text:#16211E;
  --text-2:#5A6661;
  --text-3:#8A948F;
  --radius:14px;
  --radius-btn:10px;
  --radius-lg:18px;
  --shadow-1:0 1px 2px rgba(12,43,37,.06),0 6px 18px rgba(12,43,37,.08);
  --shadow-2:0 14px 32px rgba(12,43,37,.14);
  --section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-light);}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--text);}
h1{font-size:clamp(28px,4.6vw,42px);line-height:1.28;font-weight:800;}
h2{font-size:clamp(23px,3vw,29px);line-height:1.35;font-weight:700;}
h3{font-size:19px;line-height:1.5;font-weight:700;}
p{margin:0 0 1.2em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
.num{font-variant-numeric:tabular-nums;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--section) 0;}
.section-sm{padding:64px 0;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,245,240,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:800;
  font-size:17px;
  letter-spacing:-.01em;
}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:22px;height:22px;
  display:inline-block;
  border-radius:6px 2px 6px 2px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-light) 100%);
  position:relative;
  flex:none;
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:-4px;bottom:-4px;
  width:9px;height:9px;
  border-radius:2px;
  background:var(--accent);
}
.brand-text{white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav .nav-link{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.main-nav .nav-link:hover{color:var(--brand);}
.main-nav .nav-link.is-active{color:var(--brand);}
.main-nav .nav-link.is-active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.header-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:700;
  color:var(--brand);
  border:1px solid var(--brand);
  border-radius:999px;
  padding:7px 16px;
  background:transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.header-cta:hover{background:var(--brand-soft);color:var(--brand-dark);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--card);
  color:var(--brand);
  font-size:18px;
}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--card);
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer ul{padding:10px 0;}
.mobile-drawer a{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:0 24px;
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.is-active{color:var(--brand);background:var(--brand-soft);}
.mobile-drawer .drawer-cta{margin:14px 24px 18px;display:block;text-align:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:700;
  border-radius:var(--radius-btn);
  padding:13px 24px;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  cursor:pointer;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 6px 18px rgba(224,122,47,.28);
}
.btn-primary:hover{
  background:#cf6d26;
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 12px 26px rgba(224,122,47,.34);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(224,122,47,.24);}
.btn-ghost{
  background:transparent;
  border-color:var(--brand);
  color:var(--brand);
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn-solid{
  background:var(--brand);
  color:#fff;
}
.btn-solid:hover{background:var(--brand-light);color:#fff;transform:translateY(-1px);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:9px;}
.btn:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
.text-link{
  color:var(--brand);
  font-weight:600;
  border-bottom:1px dashed var(--brand);
  padding-bottom:1px;
}
.text-link:hover{border-bottom-style:solid;color:var(--brand-light);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  padding:4px 11px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  letter-spacing:.02em;
}
.badge-accent{background:rgba(224,122,47,.12);color:#B85F1C;}
.badge-dark{background:rgba(255,255,255,.14);color:#fff;}
.tag-group{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  font-size:12px;
  font-weight:600;
  color:var(--text-2);
  background:#F2EFE8;
  border-radius:999px;
  padding:4px 10px;
}

/* ---------- 内页 banner ---------- */
.page-banner{
  position:relative;
  overflow:hidden;
  background-color:var(--brand-dark);
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  color:#fff;
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(15,76,63,.92) 0%,rgba(10,58,48,.82) 55%,rgba(12,43,37,.70) 100%);
}
.page-banner .banner-inner{position:relative;z-index:2;padding:78px 0 72px;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.72);
  margin-bottom:18px;
}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:#fff;}
.page-banner h1{color:#fff;max-width:860px;}
.page-banner .banner-lead{
  margin-top:16px;
  max-width:720px;
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
  margin-bottom:0;
}
.banner-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}

/* ---------- 布局 ---------- */
.layout-row{
  display:flex;
  align-items:flex-start;
  gap:40px;
}
.side-col{
  flex:0 0 250px;
  position:sticky;
  top:96px;
}
.main-col{flex:1 1 auto;min-width:0;}

.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  padding:20px;
}
.side-card h3{font-size:15px;margin-bottom:14px;color:var(--brand);}
.toc-list li{margin-bottom:4px;}
.toc-list a{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--text-2);
  padding:8px 10px;
  border-radius:8px;
  border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand);border-left-color:var(--brand);}
.side-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  font-size:13px;
  line-height:1.7;
  color:var(--text-3);
  margin-bottom:0;
}
.side-cta{
  margin-top:18px;
  display:block;
  width:100%;
  text-align:center;
}

/* ---------- 说明段 ---------- */
.intro-block{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  padding:28px;
  margin-bottom:40px;
}
.intro-block h2{font-size:22px;margin-bottom:14px;position:relative;padding-left:16px;}
.intro-block h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:4px;border-radius:2px;
  background:var(--brand);
}
.intro-block p:last-child{margin-bottom:0;}
.facts{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-top:22px;
}
.fact{
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px;
}
.fact b{display:block;font-size:22px;color:var(--brand);letter-spacing:-.02em;}
.fact span{font-size:13px;color:var(--text-2);}

/* ---------- 两列大卡 ---------- */
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head h2{font-size:24px;}
.section-head p{margin:8px 0 0;color:var(--text-2);font-size:15px;}
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.big-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  scroll-margin-top:96px;
}
.big-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:rgba(15,76,63,.3);
}
.thumb{
  position:relative;
  aspect-ratio:16/10;
  background:rgba(15,76,63,.08);
  overflow:hidden;
}
.thumb img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .35s ease;
}
.big-card:hover .thumb img{transform:scale(1.03);}
.thumb .badge{
  position:absolute;
  top:12px;left:12px;
  background:rgba(255,255,255,.92);
  color:var(--brand);
  backdrop-filter:blur(4px);
}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body h3{font-size:19px;margin-bottom:10px;}
.card-body p{
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  margin-bottom:16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:16px;
  border-top:1px solid var(--line);
}
.card-foot .state{font-size:13px;color:var(--text-3);}

/* ---------- 流程条 ---------- */
.steps{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:30px;
}
.steps ol{
  list-style:none;
  counter-reset:step;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  margin-top:22px;
}
.steps li{
  position:relative;
  padding-top:46px;
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
}
.steps li::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  position:absolute;
  top:0;left:0;
  width:36px;height:36px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:700;
  color:#fff;
  background:var(--brand);
  border-radius:10px;
  font-variant-numeric:tabular-nums;
}
.steps li b{display:block;color:var(--text);font-size:15px;margin-bottom:6px;}

/* ---------- 保障条 ---------- */
.guarantee{
  background:var(--dark);
  color:#fff;
  padding:40px 0;
}
.guarantee-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
}
.guarantee-item{
  padding:6px 22px;
  border-left:1px solid rgba(255,255,255,.12);
}
.guarantee-item:first-child{border-left:none;padding-left:0;}
.guarantee-item i{color:var(--accent-light);font-size:18px;}
.guarantee-item b{display:block;font-size:15px;margin:10px 0 6px;color:#fff;}
.guarantee-item span{font-size:13px;color:rgba(255,255,255,.68);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  margin-bottom:12px;
  overflow:hidden;
  transition:background .2s ease,border-color .2s ease;
}
.faq-item:hover{background:#F2F7F4;}
.faq-item[open]{background:var(--card);border-color:rgba(15,76,63,.28);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 52px 18px 22px;
  font-size:17px;
  font-weight:700;
  position:relative;
  border-left:4px solid var(--brand);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:20px;top:50%;
  transform:translateY(-50%);
  font-size:20px;
  font-weight:400;
  color:var(--brand);
  transition:transform .22s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-answer{
  padding:0 22px 20px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  border-top:1px solid var(--line);
  padding-top:16px;
}
.faq-answer p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-card{
  border-radius:var(--radius-lg);
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-light) 100%);
  color:#fff;
  padding:46px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  box-shadow:var(--shadow-2);
}
.cta-card h2{color:#fff;font-size:26px;margin-bottom:10px;}
.cta-card p{
  color:rgba(255,255,255,.86);
  font-size:15px;
  margin-bottom:0;
  max-width:560px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none;}
.cta-card .btn-ghost{border-color:rgba(255,255,255,.7);color:#fff;}
.cta-card .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
.cta-note{
  margin-top:18px;
  font-size:13px;
  color:rgba(255,255,255,.66);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--card);
  border-top:1px solid var(--line);
  padding:64px 0 24px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.2fr 1fr;
  gap:36px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:10px;}
.site-footer h4{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul a{font-size:14px;color:var(--text-2);}
.site-footer ul a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  :root{--section:64px;}
  .main-nav{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .layout-row{flex-direction:column;gap:28px;}
  .side-col{position:static;flex:1 1 auto;width:100%;}
  .card-grid{grid-template-columns:1fr;}
  .steps ol{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guarantee-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 0;}
  .guarantee-item:nth-child(3){border-left:none;padding-left:0;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-banner .banner-inner{padding:60px 0 56px;}
}
@media screen and (max-width:767px){
  .facts{grid-template-columns:1fr;}
  .steps ol{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:519px){
  .container{padding:0 18px;}
  :root{--section:48px;}
  .header-inner{height:56px;}
  body{font-size:16px;}
  .guarantee-grid{grid-template-columns:1fr;gap:22px 0;}
  .guarantee-item{padding-left:0;border-left:none;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;}
  .guarantee-item:first-child{border-top:none;padding-top:0;}
  .card-body,.intro-block,.steps{padding:18px;}
  .cta-card{padding:26px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
}

/* roulang page: category3 */
:root{
  --brand:#0F4C3F;
  --brand-dark:#0A3A30;
  --brand-light:#17695A;
  --brand-tint:#EAF3F0;
  --amber:#E07A2F;
  --amber-light:#F2A03D;
  --ok:#2FB59A;
  --warn:#C8452F;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --dark:#0C2B25;
  --line:#E3DED3;
  --t1:#16211E;
  --t2:#5A6661;
  --t3:#8A948F;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-cta:18px;
  --sh-1:0 1px 2px rgba(12,43,37,.06), 0 6px 18px rgba(12,43,37,.08);
  --sh-2:0 14px 32px rgba(12,43,37,.14);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-light);}
a:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--t1);letter-spacing:-.01em;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
strong{font-weight:700;color:var(--t1);}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-tint{background:var(--brand-tint);}
.num{font-variant-numeric:tabular-nums;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t1);font-weight:800;font-size:17px;letter-spacing:-.01em;}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:26px;height:26px;flex:none;border-radius:6px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-light) 100%);
  position:relative;overflow:hidden;
}
.brand-mark::after{
  content:"";position:absolute;right:-8px;bottom:-8px;width:20px;height:20px;
  background:var(--amber);transform:rotate(45deg);border-radius:3px;
}
.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav .nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--t2);
  padding:6px 0;
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.main-nav .nav-link:hover{color:var(--brand);}
.main-nav .nav-link:hover::after{transform:scaleX(1);}
.main-nav .nav-link.is-active{color:var(--brand);}
.main-nav .nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--card);color:var(--brand);
  font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  text-align:center;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--amber);color:#fff;box-shadow:0 6px 16px rgba(224,122,47,.26);}
.btn-primary:hover{background:#cf6b22;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(224,122,47,.32);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(224,122,47,.24);}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-tint);color:var(--brand);}
.btn-solid{background:var(--brand);color:#fff;}
.btn-solid:hover{background:var(--brand-light);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:8px;}
.btn-block{width:100%;}
.text-link{
  color:var(--brand);font-weight:600;border-bottom:1px dashed var(--brand);padding-bottom:1px;
}
.text-link:hover{border-bottom-style:solid;}

/* ---------- Badges / Tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1;
  padding:7px 12px;border-radius:999px;
  background:var(--brand-tint);color:var(--brand);
}
.badge-amber{background:rgba(224,122,47,.12);color:#b5611d;}
.badge-ok{background:rgba(47,181,154,.14);color:#1f8874;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- Banner ---------- */
.page-banner{
  position:relative;overflow:hidden;isolation:isolate;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
}
.page-banner::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(120deg,rgba(10,58,48,.86) 0%,rgba(15,76,63,.72) 52%,rgba(23,105,90,.62) 100%);
}
.page-banner .container{padding-top:84px;padding-bottom:84px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;}
.breadcrumb a{color:rgba(255,255,255,.9);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  padding:8px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.24);
}
.page-banner h1{
  color:#fff;font-size:clamp(28px,4.6vw,42px);line-height:1.28;font-weight:800;
  max-width:760px;
}
.page-banner .lede{
  margin-top:18px;max-width:660px;color:rgba(255,255,255,.88);font-size:16px;line-height:1.85;
}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.banner-actions .btn-outline{color:#fff;border-color:rgba(255,255,255,.66);}
.banner-actions .btn-outline:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* ---------- Section heading ---------- */
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{
  position:relative;padding-left:16px;font-size:clamp(23px,3vw,29px);line-height:1.35;font-weight:700;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand);
}
.section-head p{margin-top:16px;color:var(--t2);font-size:16px;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- Intro block ---------- */
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start;}
.intro-copy p{color:var(--t2);}
.intro-figure{position:relative;}
.intro-figure img{width:100%;height:320px;object-fit:cover;box-shadow:var(--sh-1);}
.intro-figure figcaption{margin-top:12px;font-size:13px;color:var(--t3);}
.fact-box{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);margin-top:24px;
}
.fact-box h3{font-size:17px;margin-bottom:14px;}
.fact-list li{
  display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--t2);
}
.fact-list li:last-child{border-bottom:none;padding-bottom:0;}
.fact-list i{color:var(--brand);font-size:14px;margin-top:6px;flex:none;}
.intro-note{
  display:flex;gap:14px;align-items:flex-start;
  background:rgba(224,122,47,.08);border-left:4px solid var(--amber);
  border-radius:8px;padding:18px 20px;margin-top:24px;font-size:15px;color:var(--t2);
}
.intro-note i{color:var(--amber);font-size:16px;margin-top:5px;flex:none;}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-top:8px;}
.timeline::before{
  content:"";position:absolute;left:17px;top:16px;bottom:16px;width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(15,76,63,.35) 70%,rgba(227,222,211,.9) 100%);
}
.tl-item{position:relative;padding-left:70px;margin-bottom:28px;}
.tl-item:last-child{margin-bottom:0;}
.tl-node{
  position:absolute;left:0;top:14px;width:36px;height:36px;border-radius:50%;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;box-shadow:0 0 0 4px var(--brand-tint);z-index:2;
}
.tl-item.is-key .tl-node{background:var(--amber);box-shadow:0 0 0 4px rgba(224,122,47,.16);}
.tl-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-body:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,76,63,.3);}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px;}
.tl-head h3{font-size:19px;font-weight:700;}
.tl-body > p{color:var(--t2);font-size:15px;}
.tl-points{margin-top:14px;display:grid;gap:8px;}
.tl-points li{display:flex;gap:10px;font-size:14.5px;color:var(--t2);line-height:1.7;}
.tl-points i{color:var(--ok);font-size:13px;margin-top:6px;flex:none;}
.tl-points .warn-dot{color:var(--warn);}
.tl-meta{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);font-size:13px;color:var(--t3);display:flex;flex-wrap:wrap;gap:10px 20px;}

/* ---------- Verify cards ---------- */
.verify-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.verify-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.verify-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,76,63,.3);}
.verify-card .icon-box{
  width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-tint);color:var(--brand);font-size:17px;margin-bottom:16px;
}
.verify-card h3{font-size:18px;margin-bottom:10px;}
.verify-card p{color:var(--t2);font-size:15px;}
.verify-card .tag-row{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);}

/* ---------- Assurance bar ---------- */
.assurance{background:var(--dark);color:#fff;padding:0;}
.assurance-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.assurance-item{padding:36px 26px;border-left:1px solid rgba(255,255,255,.12);}
.assurance-item:first-child{border-left:none;}
.assurance-item i{color:var(--amber-light);font-size:20px;margin-bottom:14px;display:block;}
.assurance-item strong{display:block;color:#fff;font-size:16px;margin-bottom:6px;}
.assurance-item span{font-size:14px;color:rgba(255,255,255,.72);line-height:1.7;display:block;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 24px;background:transparent;border:none;cursor:pointer;text-align:left;
  font-size:17px;font-weight:700;color:var(--t1);position:relative;
  transition:background-color .18s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;background:var(--brand);
  border-radius:0 3px 3px 0;
}
.faq-q:hover{background:#F2F7F4;}
.faq-q i{color:var(--brand);font-size:15px;transition:transform .22s ease;flex:none;}
.faq-item.is-open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a-inner{padding:0 24px 22px 28px;font-size:15px;color:var(--t2);line-height:1.85;}
.faq-item.is-open .faq-a{max-height:420px;}

/* ---------- CTA ---------- */
.cta-card{
  border-radius:var(--r-cta);
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-light) 100%);
  padding:52px 48px;color:#fff;
  display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;
  box-shadow:var(--sh-1);
}
.cta-card h2{color:#fff;font-size:clamp(22px,2.8vw,28px);line-height:1.36;font-weight:700;}
.cta-card p{color:rgba(255,255,255,.86);margin-top:14px;font-size:15.5px;max-width:560px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch;}
.cta-actions .btn-outline{color:#fff;border-color:rgba(255,255,255,.66);}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.16);color:#fff;border-color:#fff;}
.cta-privacy{margin-top:18px;font-size:13px;color:rgba(255,255,255,.68);}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.site-footer .brand{color:#fff;margin-bottom:18px;}
.site-footer .brand:hover{color:var(--amber-light);}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.7);margin-bottom:10px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.site-footer ul li{margin-bottom:12px;}
.site-footer ul a{color:rgba(255,255,255,.72);font-size:14.5px;}
.site-footer ul a:hover{color:var(--amber-light);}
.footer-bottom{
  margin-top:52px;padding:22px 24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom span{line-height:1.7;}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .section{padding:64px 0;}
  .section-sm{padding:48px 0;}
  .page-banner .container{padding-top:56px;padding-bottom:56px;}
  .intro-grid{grid-template-columns:1fr;gap:36px;}
  .verify-grid{grid-template-columns:repeat(2,1fr);}
  .assurance-grid{grid-template-columns:repeat(2,1fr);}
  .assurance-item:nth-child(3){border-left:none;}
  .assurance-item{border-top:1px solid rgba(255,255,255,.12);}
  .cta-card{grid-template-columns:1fr;padding:40px 28px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .header-inner{height:56px;}
  .main-nav{
    position:fixed;left:0;right:0;top:56px;bottom:0;
    background:var(--bg);flex-direction:column;align-items:stretch;gap:0;
    padding:16px 24px 24px;overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
    border-top:1px solid var(--line);
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:none;}
  .main-nav .nav-link{
    display:block;padding:14px 2px;font-size:16px;border-bottom:1px solid var(--line);
  }
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link.is-active{color:var(--brand);font-weight:700;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:767px){
  .verify-grid{grid-template-columns:1fr;}
  .assurance-grid{grid-template-columns:1fr;}
  .assurance-item{border-left:none;padding:26px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .tl-item{padding-left:54px;}
  .timeline::before{left:14px;}
  .tl-node{width:30px;height:30px;font-size:12px;top:16px;box-shadow:0 0 0 3px var(--brand-tint);}
  .tl-body{padding:20px 18px;}
  .faq-q{padding:18px 18px;font-size:16px;}
  .faq-a-inner{padding:0 18px 18px 22px;}
}
@media (max-width:519px){
  .container{padding:0 18px;}
  .page-banner h1{font-size:26px;}
  .banner-actions .btn{width:100%;}
  .header-actions .btn-sm{display:none;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category4 */
:root{
  --ink:#16211E;--ink-2:#5A6661;--ink-3:#8A948F;
  --primary:#0F4C3F;--primary-dark:#0A3A30;--primary-light:#17695A;--primary-soft:#EAF3F0;
  --amber:#E07A2F;--amber-light:#F2A03D;
  --ok:#2FB59A;--warn:#C8452F;
  --bg:#F7F5F0;--card:#FFFFFF;--dark:#0C2B25;--line:#E3DED3;
  --r-card:14px;--r-btn:10px;--r-img:12px;--r-badge:999px;--r-cta:18px;
  --sh-1:0 1px 2px rgba(12,43,37,.06),0 6px 18px rgba(12,43,37,.08);
  --sh-2:0 14px 32px rgba(12,43,37,.14);
  --sp-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:.01em;overflow-x:hidden}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-light)}
button{font:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink)}
h1{font-weight:800;font-size:clamp(28px,4.6vw,42px);line-height:1.28}
h2{font-weight:700;font-size:clamp(22px,2.6vw,29px);line-height:1.35}
h3{font-weight:700;font-size:19px;line-height:1.5}
h4{font-weight:700;font-size:16px;line-height:1.5}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--sp-section) 0}
.section-tight{padding:64px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.section-head p{margin:8px 0 0;color:var(--ink-2);max-width:56em}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.04em;
  color:var(--primary);background:var(--primary-soft);border-radius:var(--r-badge);padding:5px 12px;margin-bottom:16px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber)}
.lead{color:var(--ink-2);font-size:16.5px}
.muted{color:var(--ink-3);font-size:14px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:80;background:rgba(247,245,240,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink)}
.brand-mark{position:relative;width:22px;height:22px;border-radius:7px 2px 7px 2px;background:var(--primary);flex:0 0 auto}
.brand-mark::after{content:"";position:absolute;inset:6px;border:1.5px solid rgba(255,255,255,.88);border-radius:3px 1px 3px 1px}
.brand:hover{color:var(--primary)}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav .nav-link{position:relative;font-size:15px;font-weight:600;color:var(--ink-2);padding:6px 0}
.main-nav .nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--amber);
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.main-nav .nav-link:hover{color:var(--primary)}
.main-nav .nav-link:hover::after{transform:scaleX(1)}
.main-nav .nav-link.is-active{color:var(--primary)}
.main-nav .nav-link.is-active::after{transform:scaleX(1)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;padding:0}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:700;
  padding:13px 24px;border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease}
.btn-primary{background:var(--amber);color:#fff;box-shadow:0 6px 16px rgba(224,122,47,.28)}
.btn-primary:hover{background:#cf6d26;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(224,122,47,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(224,122,47,.26)}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary)}
.btn-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.2);color:#fff}
.btn:focus-visible,.nav-link:focus-visible,.faq-item summary:focus-visible,a:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}
.btn-block{width:100%}
.text-link{color:var(--primary);font-weight:600;border-bottom:1px dashed var(--primary);padding-bottom:1px}
.text-link:hover{border-bottom-style:solid;color:var(--primary-light)}

/* Banner */
.page-banner{position:relative;color:#fff;padding:84px 0 76px;
  background-color:var(--dark);
  background-image:linear-gradient(118deg,rgba(10,58,48,.9) 8%,rgba(15,76,63,.6) 78%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center}
.page-banner h1{color:#fff;max-width:20em}
.banner-lead{margin-top:18px;max-width:50em;color:rgba(255,255,255,.88);font-size:16.5px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{opacity:.55}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.banner-tags span{font-size:12.5px;font-weight:600;padding:6px 12px;border-radius:var(--r-badge);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);color:#fff}

/* 概览说明 */
.intro-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:48px;align-items:start}
.intro-copy h2{margin-bottom:18px}
.intro-figure{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-1)}
.intro-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.intro-figure figcaption{font-size:13px;color:var(--ink-3);padding:12px 4px 2px;line-height:1.7}
.fact-list{display:grid;gap:12px;margin-top:26px}
.fact-list li{display:grid;grid-template-columns:88px 1fr;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px 18px;box-shadow:var(--sh-1)}
.fact-list b{color:var(--primary);font-size:13.5px;font-weight:700;letter-spacing:.02em}
.fact-list span{color:var(--ink-2);font-size:15px}

/* 对照卡网格 */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.compare-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.compare-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,76,63,.3)}
.compare-head{display:flex;align-items:flex-start;gap:12px;padding-bottom:14px;margin-bottom:14px;border-bottom:1px dashed var(--line)}
.c-num{flex:0 0 auto;font-size:12.5px;font-weight:700;color:var(--primary);background:var(--primary-soft);
  border-radius:var(--r-badge);padding:4px 10px;font-variant-numeric:tabular-nums;letter-spacing:.04em}
.compare-head h3{font-size:18px}
.compare-row{display:grid;grid-template-columns:74px minmax(0,1fr);gap:12px;padding:9px 0}
.compare-row + .compare-row{border-top:1px solid #F1EDE4}
.compare-key{font-size:13px;font-weight:700;color:var(--primary-light);letter-spacing:.02em;padding-top:2px}
.compare-key.is-warn{color:var(--warn)}
.compare-val{margin:0;font-size:15px;color:var(--ink-2);line-height:1.8}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,76,63,.3)}
.step-num{display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:var(--r-badge);
  background:var(--primary);color:#fff;font-size:13.5px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:14px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.78;margin:0}

/* 深色信息区 */
.dark-band{background:var(--dark);border-radius:var(--r-cta);padding:44px;color:rgba(255,255,255,.86)}
.dark-band h2{color:#fff}
.dark-band .lead{color:rgba(255,255,255,.78);max-width:52em}
.info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 28px;margin-top:30px}
.info-grid li{display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.info-grid li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:2px;
  background:var(--amber);transform:rotate(45deg)}
.info-grid b{color:#fff;font-weight:700;font-size:15px}
.info-grid span{display:block;color:rgba(255,255,255,.74);font-size:14px;line-height:1.75}
.dark-note{margin-top:24px;font-size:13.5px;color:rgba(255,255,255,.62)}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:960px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:background-color .22s ease,border-color .22s ease}
.faq-item:hover{background:#F2F7F4}
.faq-item[open]{border-color:rgba(15,76,63,.28)}
.faq-item summary{list-style:none;cursor:pointer;position:relative;display:flex;align-items:center;
  justify-content:space-between;gap:16px;padding:18px 20px 18px 24px;font-size:17px;font-weight:700;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;
  background:var(--primary)}
.faq-item summary::after{content:"+";font-size:20px;font-weight:600;color:var(--primary);line-height:1;flex:0 0 auto}
.faq-item[open] summary::after{content:"–"}
.faq-body{padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* CTA */
.cta-card{background:linear-gradient(135deg,#0F4C3F 0%,#17695A 100%);border-radius:var(--r-cta);padding:46px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:30px;color:#fff}
.cta-card h2{color:#fff;max-width:22em}
.cta-card p{color:rgba(255,255,255,.82);margin-top:12px;max-width:38em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-privacy{width:100%;margin-top:6px;font-size:13px;color:rgba(255,255,255,.66)}

/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14.5px;color:var(--ink-2);max-width:34em}
.site-footer h4{font-size:15px;margin-bottom:16px;color:var(--ink)}
.site-footer ul{display:grid;gap:10px}
.site-footer ul a{font-size:14.5px;color:var(--ink-2)}
.site-footer ul a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0 28px;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:12px;font-size:13.5px;color:var(--ink-3)}

/* 响应式 */
@media (max-width:1023px){
  :root{--sp-section:64px}
  .header-inner{height:56px}
  .nav-toggle{display:flex}
  .main-nav{position:fixed;left:0;right:0;top:56px;bottom:0;background:var(--bg);flex-direction:column;
    align-items:stretch;gap:0;padding:16px 18px 32px;overflow-y:auto;transform:translateX(100%);
    transition:transform .24s ease;border-top:1px solid var(--line)}
  .main-nav.is-open{transform:translateX(0)}
  .main-nav .nav-link{display:flex;align-items:center;min-height:44px;padding:14px 4px;font-size:16px;
    border-bottom:1px solid var(--line)}
  .main-nav .nav-link::after{display:none}
  .main-nav .nav-link.is-active{color:var(--primary)}
  .intro-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:52px 0 36px}
  .page-banner{padding:64px 0 58px}
}
@media (max-width:767px){
  .compare-grid{grid-template-columns:minmax(0,1fr)}
  .info-grid{grid-template-columns:minmax(0,1fr)}
  .dark-band{padding:30px 22px}
  .cta-card{padding:32px 24px}
  .cta-actions .btn{width:100%}
}
@media (max-width:520px){
  :root{--sp-section:48px}
  .container{padding:0 18px}
  body{font-size:16px}
  .compare-row{grid-template-columns:minmax(0,1fr);gap:4px}
  .compare-key{padding-top:0}
  .fact-list li{grid-template-columns:minmax(0,1fr);gap:4px}
  .steps{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{flex-direction:column}
  .banner-tags{gap:8px}
}