/* roulang page: index */
:root{
  --brand-900:#0B2B22;
  --brand-700:#10493A;
  --brand-500:#178A63;
  --brand-400:#2FB27C;
  --brand-050:#EAF3EE;
  --accent-500:#F2652A;
  --accent-050:#FFEDE3;
  --ink-900:#131815;
  --ink-600:#4E5A54;
  --ink-400:#8C948F;
  --paper:#FFFFFF;
  --bg:#F6F7F4;
  --line:#E3E7E2;
  --glass-bg:rgba(12,32,25,.30);
  --glass-line:rgba(255,255,255,.16);
  --r-s:10px;
  --r-m:16px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,34,26,.06),0 8px 24px -12px rgba(15,34,26,.18);
  --sh-2:0 18px 40px -20px rgba(15,34,26,.32);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#178A63;
  --bs-primary-rgb:23,138,99;
  --bs-body-bg:#F6F7F4;
  --bs-body-color:#131815;
  --bs-font-sans-serif:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-border-color:#E3E7E2;
  --bs-link-color:#178A63;
  --bs-link-hover-color:#10493A;
  --bs-border-radius:16px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color 200ms var(--ease),border-color 200ms var(--ease);}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
p{margin-bottom:1.05em;}
h1,h2,h3,h4{margin:0 0 .4em;line-height:1.32;font-weight:700;color:var(--ink-900);}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.28;}
h2{font-size:clamp(24px,3vw,32px);}
h3{font-size:20px;font-weight:600;line-height:1.4;}
ul{padding-left:1.1em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}

.container{
  max-width:1200px;
  padding-left:24px;
  padding-right:24px;
  --bs-gutter-x:24px;
}

/* ---------- 按钮 ---------- */
.btn{
  --bs-btn-border-radius:var(--r-pill);
  border-radius:var(--r-pill);
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform 200ms var(--ease),background-color 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn-cta{background:var(--accent-500);color:#fff;}
.btn-cta:hover{background:#D9541C;color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(242,101,42,.7);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.62);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-soft{background:var(--paper);color:var(--ink-900);border-color:var(--line);}
.btn-soft:hover{background:var(--brand-050);color:var(--brand-500);border-color:var(--brand-500);}
.btn-brand{background:var(--brand-500);color:#fff;}
.btn-brand:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-sm{padding:9px 18px;font-size:14px;}

/* ---------- 徽章 / 标签 ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--brand-050);color:var(--brand-700);
}
.badge-accent{background:var(--accent-050);color:var(--accent-500);}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;
  letter-spacing:.08em;color:var(--brand-500);margin-bottom:10px;
  text-transform:uppercase;
}

/* ---------- 导航 ---------- */
.site-header{
  position:absolute;top:0;left:0;right:0;z-index:1040;
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--glass-line);
  transition:background-color 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease);
}
.site-header.is-stuck{
  position:fixed;
  background:var(--paper);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.nav-wrap{
  display:flex;align-items:center;gap:28px;height:72px;
  transition:height 240ms var(--ease);
}
.site-header.is-stuck .nav-wrap{height:64px;}
.brand{
  display:flex;align-items:center;gap:10px;flex:0 0 auto;
  color:#fff;font-weight:700;font-size:17px;letter-spacing:.01em;
}
.brand:hover{color:#fff;text-decoration:none;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand-400),var(--brand-500));
  display:grid;place-items:center;color:#fff;font-size:16px;font-weight:700;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.25);
}
.brand-text{white-space:nowrap;}
.site-header.is-stuck .brand{color:var(--ink-900);}
.site-header.is-stuck .brand:hover{color:var(--brand-500);}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;color:rgba(255,255,255,.86);font-size:15px;font-weight:500;
  padding:8px 14px;border-radius:var(--r-pill);
}
.nav-link:hover{color:#fff;text-decoration:none;background:rgba(255,255,255,.10);}
.nav-link.is-active{color:#fff;font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand-400);border-radius:2px;
}
.site-header.is-stuck .nav-link{color:var(--ink-600);}
.site-header.is-stuck .nav-link:hover{color:var(--brand-500);background:var(--brand-050);}
.site-header.is-stuck .nav-link.is-active{color:var(--brand-500);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  background:transparent;border:1px solid rgba(255,255,255,.24);color:#fff;cursor:pointer;
  transition:background-color 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.16);}
.site-header.is-stuck .icon-btn{border-color:var(--line);color:var(--ink-600);}
.site-header.is-stuck .icon-btn:hover{background:var(--brand-050);color:var(--brand-500);border-color:var(--brand-500);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;background:transparent;border:1px solid rgba(255,255,255,.24);color:#fff;cursor:pointer;}
.site-header.is-stuck .nav-toggle{border-color:var(--line);color:var(--ink-900);}
.nav-search{display:flex;align-items:center;gap:8px;}
.nav-search input{
  height:42px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.10);color:#fff;padding:0 16px;font-size:14px;width:170px;
}
.nav-search input::placeholder{color:rgba(255,255,255,.7);}
.nav-search input:focus{outline:none;border-color:var(--brand-400);background:rgba(255,255,255,.16);}
.site-header.is-stuck .nav-search input{background:var(--bg);border-color:var(--line);color:var(--ink-900);}
.site-header.is-stuck .nav-search input::placeholder{color:var(--ink-400);}

.drawer-mask{
  position:fixed;inset:0;background:rgba(11,43,34,.55);
  opacity:0;visibility:hidden;transition:opacity 240ms var(--ease),visibility 240ms var(--ease);z-index:1050;
}
.drawer-mask.show{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,360px);z-index:1060;
  background:var(--paper);transform:translateX(100%);
  transition:transform 260ms var(--ease);
  padding:24px 22px 32px;overflow-y:auto;box-shadow:-20px 0 40px -24px rgba(15,34,26,.4);
}
.mobile-drawer.show{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink-900);}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink-600);cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.drawer-nav a{
  padding:12px 14px;border-radius:var(--r-s);color:var(--ink-900);font-weight:500;font-size:15px;
  border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--brand-050);color:var(--brand-500);text-decoration:none;border-color:var(--brand-050);}
.drawer-nav a.is-active{background:var(--brand-050);color:var(--brand-500);font-weight:600;}
.drawer-field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.drawer-field label{font-size:13px;color:var(--ink-600);}
.drawer-field input{height:46px;border-radius:var(--r-s);border:1px solid var(--line);padding:0 14px;font-size:15px;background:#fff;}
.drawer-field input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-050);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-color:var(--brand-900);
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  padding:150px 0 96px;
  color:#fff;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,43,34,.86) 0%,rgba(11,43,34,.72) 45%,rgba(11,43,34,.80) 100%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(180deg,rgba(11,43,34,0),var(--bg));
}
.hero-inner{position:relative;z-index:2;max-width:900px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.10);border:1px solid var(--glass-line);
  color:#fff;font-size:13px;margin-bottom:22px;
}
.hero-eyebrow i{color:var(--brand-400);}
.hero h1{color:#fff;margin-bottom:18px;}
.hero-sub{font-size:clamp(16px,1.6vw,19px);line-height:1.75;color:rgba(255,255,255,.84);max-width:720px;margin-bottom:30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
  border-top:1px solid var(--glass-line);padding-top:26px;max-width:820px;
}
.stat{padding-right:20px;}
.stat + .stat{border-left:1px solid var(--glass-line);padding-left:24px;}
.stat-num{font-size:26px;font-weight:700;color:#fff;line-height:1.2;}
.stat-num span{font-size:14px;color:var(--brand-400);margin-left:4px;font-weight:600;}
.stat-label{font-size:13px;color:rgba(255,255,255,.66);margin-top:4px;}

/* ---------- 板块 ---------- */
.section{padding:96px 0;scroll-margin-top:96px;}
.section.tight{padding:72px 0;}
.section.alt{background:var(--paper);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{position:relative;padding-left:16px;}
.section-title::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--brand-500);
}
.section-head.center .section-title{padding-left:0;}
.section-head.center .section-title::before{display:none;}
.section-sub{color:var(--ink-600);margin-bottom:0;}

/* ---------- 优势 ---------- */
.adv-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.55fr);gap:48px;align-items:start;}
.adv-side{position:sticky;top:104px;}
.adv-side h2{margin-bottom:16px;}
.adv-side p{color:var(--ink-600);margin-bottom:0;}
.adv-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.adv-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);
  padding:28px 26px;box-shadow:var(--sh-1);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-400);}
.adv-card.wide{grid-column:span 2;}
.adv-card.tint{background:var(--brand-050);border-color:#D6E7DD;}
.adv-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-050);color:var(--brand-500);font-size:20px;margin-bottom:18px;
}
.adv-card.tint .adv-icon{background:#fff;}
.adv-card h3{margin-bottom:8px;}
.adv-card p{color:var(--ink-600);margin-bottom:0;font-size:15.5px;}

/* ---------- 演示 ---------- */
.demo-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:56px;align-items:center;}
.demo-figure{
  border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-1);
  background:var(--brand-050);border:1px solid var(--line);
}
.demo-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.demo-list{list-style:none;padding:0;margin:0;}
.demo-item{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line);}
.demo-item:last-child{border-bottom:0;}
.demo-num{
  font-size:20px;font-weight:700;color:var(--brand-500);line-height:1.4;flex:0 0 auto;
  min-width:38px;
}
.demo-item h3{margin-bottom:4px;font-size:18px;}
.demo-item p{margin-bottom:0;color:var(--ink-600);font-size:15.5px;}

/* ---------- 证据 ---------- */
.proof{background:var(--paper);}
.proof-nums{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin-bottom:56px;}
.proof-num{text-align:left;border-left:3px solid var(--brand-050);padding-left:22px;}
.proof-num strong{display:block;font-size:40px;font-weight:700;color:var(--brand-500);line-height:1.15;}
.proof-num strong em{font-size:17px;font-style:normal;color:var(--brand-700);margin-left:4px;}
.proof-num span{font-size:14px;color:var(--ink-600);}
.proof-wall-label{font-size:13px;letter-spacing:.08em;color:var(--ink-400);margin-bottom:16px;font-weight:600;}
.proof-wall{
  display:flex;gap:18px;overflow-x:auto;padding:4px 2px 18px;
  scrollbar-width:thin;
}
.proof-logo{
  flex:0 0 auto;min-width:168px;height:78px;border-radius:var(--r-m);
  border:1px solid var(--line);background:var(--bg);
  display:grid;place-items:center;color:var(--ink-600);font-size:15px;font-weight:600;
  filter:grayscale(1);opacity:.6;transition:filter 220ms var(--ease),opacity 220ms var(--ease),border-color 220ms var(--ease);
}
.proof-logo:hover{filter:grayscale(0);opacity:1;border-color:var(--brand-400);color:var(--brand-700);}
.quote-card{
  position:relative;background:var(--brand-050);border-radius:var(--r-m);
  padding:32px 34px 30px 38px;border-left:4px solid var(--brand-500);
  overflow:hidden;
}
.quote-card::before{
  content:"“";position:absolute;right:24px;top:-6px;font-size:96px;line-height:1;
  color:var(--brand-500);opacity:.12;font-family:Georgia,serif;
}
.quote-card p{font-size:17px;color:var(--brand-900);margin-bottom:12px;position:relative;z-index:1;}
.quote-card footer{font-size:14px;color:var(--ink-600);}

/* ---------- 资讯 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}
.post-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-400);}
.post-cover{position:relative;background:var(--brand-050);}
.post-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.post-badge{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.94);color:var(--brand-700);
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--r-pill);
}
.post-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1;}
.post-title{
  font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-title a{color:var(--ink-900);}
.post-title a:hover{color:var(--brand-500);text-decoration:none;}
.post-excerpt{
  color:var(--ink-600);font-size:14.5px;line-height:1.7;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-400);gap:12px;
}
.post-meta a{font-weight:600;font-size:13.5px;}
.empty-panel{
  grid-column:1/-1;min-height:96px;border-radius:var(--r-m);
  background:var(--brand-050);border:1px dashed #C6DED2;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;padding:28px;text-align:center;color:var(--ink-600);
}

/* ---------- 价格 ---------- */
.price-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;align-items:start;
}
.price-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-l);
  padding:34px 30px 30px;box-shadow:var(--sh-1);position:relative;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.price-card.featured{
  border:2px solid var(--brand-500);transform:translateY(-24px);
  box-shadow:0 26px 50px -26px rgba(15,34,26,.36);
}
.price-card.featured:hover{transform:translateY(-28px);}
.price-tag{
  position:absolute;right:22px;top:-14px;
  background:var(--accent-500);color:#fff;font-size:12px;font-weight:600;
  padding:5px 14px;border-radius:var(--r-pill);
}
.price-name{font-size:17px;font-weight:700;margin-bottom:6px;}
.price-desc{font-size:14px;color:var(--ink-600);margin-bottom:20px;min-height:44px;}
.price-amount{font-size:36px;font-weight:700;color:var(--ink-900);line-height:1;margin-bottom:6px;}
.price-amount small{font-size:14px;font-weight:500;color:var(--ink-400);margin-left:6px;}
.price-list{list-style:none;padding:0;margin:22px 0 26px;}
.price-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--ink-600);padding:9px 0;border-bottom:1px dashed var(--line);
}
.price-list li:last-child{border-bottom:0;}
.price-list i{color:var(--brand-500);margin-top:6px;font-size:13px;}
.price-card .btn{width:100%;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r-m) !important;
  margin-bottom:14px;overflow:hidden;background:var(--paper);
}
.accordion-button{
  font-size:17px;font-weight:600;color:var(--ink-900);background:var(--paper);
  padding:20px 54px 20px 22px;gap:14px;border-radius:0 !important;
  box-shadow:none !important;
}
.accordion-button::after{display:none;}
.accordion-button::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand-500);line-height:1;
}
.accordion-button:not(.collapsed)::before{content:"−";}
.accordion-button:not(.collapsed){background:var(--brand-050);color:var(--brand-500);box-shadow:inset 3px 0 0 var(--brand-500) !important;}
.accordion-button:focus{box-shadow:none;border-color:var(--brand-500);}
.faq-index{font-size:13px;font-weight:700;color:var(--brand-400);letter-spacing:.06em;}
.accordion-body{
  padding:4px 26px 24px 60px;color:var(--ink-600);font-size:15.5px;
  background:var(--brand-050);
}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand-900);
  border-radius:var(--r-l);padding:64px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.8) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.8) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{color:#fff;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.76);margin-bottom:0;max-width:560px;}
.cta-section{padding:96px 0 72px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:72px 0 88px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px;}
.footer-col p{font-size:14.5px;line-height:1.8;margin-bottom:14px;color:rgba(255,255,255,.66);}
.footer-title{color:#fff;font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:16px;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14.5px;border-bottom:2px solid transparent;transition:color 200ms var(--ease),border-color 200ms var(--ease);}
.footer-links a:hover{color:#fff;border-bottom-color:var(--brand-500);text-decoration:none;}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.5);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:1030;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms var(--ease);
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-500);color:#fff;border:0;cursor:pointer;
  padding:13px 22px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  box-shadow:0 16px 32px -16px rgba(242,101,42,.8);
}
.float-btn:hover{background:#D9541C;}
.float-menu{
  position:absolute;right:0;bottom:60px;width:210px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-2);padding:10px;display:none;
}
.float-menu.show{display:block;}
.float-menu a{
  display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:var(--r-s);
  color:var(--ink-900);font-size:14.5px;
}
.float-menu a:hover{background:var(--brand-050);color:var(--brand-500);text-decoration:none;}
.float-menu i{color:var(--brand-500);width:16px;text-align:center;}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .section{padding:84px 0;}
  .adv-grid{gap:36px;}
}
@media (max-width:991px){
  .main-nav,.nav-search{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .adv-grid{grid-template-columns:minmax(0,1fr);}
  .adv-side{position:static;}
  .demo-grid{grid-template-columns:minmax(0,1fr);gap:36px;}
  .proof-nums{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
  .price-grid{grid-template-columns:minmax(0,1fr);gap:22px;}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-4px);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  .site-header{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(11,43,34,.82);}
  .hero{padding:126px 0 72px;background-position:center 60%;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 0;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .adv-cards{grid-template-columns:minmax(0,1fr);}
  .adv-card.wide{grid-column:span 1;}
  .proof-nums{grid-template-columns:minmax(0,1fr);gap:20px;}
  .news-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:44px 28px;}
  .accordion-body{padding:4px 20px 22px 20px;}
  .section{padding:64px 0;}
}
@media (max-width:575px){
  .container{padding-left:18px;padding-right:18px;}
  .brand-text{font-size:15px;}
  .section{padding:52px 0;}
  .hero{padding:118px 0 60px;}
  .hero-cta .btn{width:100%;text-align:center;}
  .float-cta{right:16px;bottom:18px;}
  .float-btn{width:56px;height:56px;padding:0;justify-content:center;border-radius:50%;}
  .float-btn span{display:none;}
  .float-menu{right:0;bottom:66px;width:min(78vw,240px);}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .post-body{padding:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --brand-900:#0B2B22;
  --brand-700:#10493A;
  --brand-500:#178A63;
  --brand-400:#2FB27C;
  --brand-050:#EAF3EE;
  --accent-500:#F2652A;
  --accent-050:#FFEDE3;
  --ink-900:#131815;
  --ink-600:#4E5A54;
  --ink-400:#8C948F;
  --paper:#FFFFFF;
  --bg:#F6F7F4;
  --line:#E3E7E2;
  --glass-bg:rgba(12,32,25,.30);
  --glass-line:rgba(255,255,255,.16);
  --r-s:10px;
  --r-m:16px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,34,26,.06), 0 8px 24px -12px rgba(15,34,26,.18);
  --sh-2:0 18px 40px -20px rgba(15,34,26,.32);
  --ease:cubic-bezier(.2,.7,.3,1);

  --bs-body-bg:#F6F7F4;
  --bs-body-color:#131815;
  --bs-primary:#178A63;
  --bs-primary-rgb:23,138,99;
  --bs-link-color:#178A63;
  --bs-link-hover-color:#10493A;
  --bs-border-color:#E3E7E2;
  --bs-font-sans-serif:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",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-500);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:.01em}
p{margin:0 0 1.05em}
ul,ol{margin:0 0 1.05em;padding-left:1.3em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%}
.row{--bs-gutter-x:24px;--bs-gutter-y:24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  height:72px;
  background:var(--glass-bg);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--glass-line);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.5);
  transition:background .24s var(--ease),height .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-stuck{
  height:64px;
  background:var(--paper);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.nav-shell{display:flex;align-items:center;gap:28px;height:72px;transition:height .24s var(--ease)}
.site-header.is-stuck .nav-shell{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff;font-weight:700;font-size:18px;letter-spacing:.02em}
.site-header.is-stuck .brand{color:var(--ink-900)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--brand-400),var(--brand-700));
  color:#fff;font-size:15px;font-weight:700;letter-spacing:0
}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;color:rgba(255,255,255,.86);font-size:15px;font-weight:500;
  padding:8px 12px;border-radius:var(--r-pill);transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.12)}
.site-header.is-stuck .nav-link{color:var(--ink-600)}
.site-header.is-stuck .nav-link:hover{color:var(--brand-500);background:var(--brand-050)}
.nav-link.is-active{color:#fff;font-weight:600}
.site-header.is-stuck .nav-link.is-active{color:var(--brand-500)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-400)
}
.site-header.is-stuck .nav-link.is-active::after{background:var(--brand-500)}
.nav-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.10);color:#fff;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .2s var(--ease)
}
.icon-btn:hover{background:rgba(255,255,255,.22)}
.site-header.is-stuck .icon-btn{background:var(--bg);border-color:var(--line);color:var(--ink-900)}
.site-header.is-stuck .icon-btn:hover{border-color:var(--brand-400);color:var(--brand-500)}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.1);color:#fff;cursor:pointer}
.site-header.is-stuck .hamburger{background:var(--bg);border-color:var(--line);color:var(--ink-900)}

.search-pop{
  position:absolute;top:calc(100% + 8px);right:24px;width:min(420px,calc(100vw - 48px));
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);box-shadow:var(--sh-2);
  padding:14px;display:none
}
.search-pop.is-open{display:block}
.search-form{display:flex;gap:10px}
.search-form input{
  flex:1 1 auto;height:46px;border-radius:var(--r-s);border:1px solid var(--line);
  padding:0 14px;font-size:15px;color:var(--ink-900);background:#fff
}
.search-form input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-050)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .22s var(--ease);text-align:center;line-height:1.2
}
.btn-primary{background:var(--brand-500);color:#fff;border-color:var(--brand-500)}
.btn-primary:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px)}
.btn-accent{background:var(--accent-500);color:#fff;border-color:var(--accent-500)}
.btn-accent:hover{background:#dc551d;border-color:#dc551d;color:#fff;transform:translateY(-1px)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-500);background:var(--brand-050)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-sm{padding:9px 18px;font-size:14px}
.btn[disabled]{opacity:.45;cursor:not-allowed}

.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);
  padding:5px 12px;font-size:12px;font-weight:600;letter-spacing:.02em
}
.badge-brand{background:var(--brand-050);color:var(--brand-700)}
.badge-accent{background:var(--accent-050);color:var(--accent-500)}

/* ---------- 文章首屏 ---------- */
.article-hero{
  position:relative;padding:150px 0 64px;overflow:hidden;color:#fff;
  background:var(--brand-900) url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,43,34,.86) 0%,rgba(11,43,34,.80) 55%,rgba(11,43,34,.92) 100%);
}
.article-hero::after{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,#fff 0 1px,transparent 1px 12px);
}
.article-hero .container{position:relative;z-index:2}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);flex-wrap:wrap}
.crumbs a{color:rgba(255,255,255,.78)}
.crumbs a:hover{color:#fff}
.crumbs .sep{color:rgba(255,255,255,.4)}
.crumbs .current{max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:rgba(255,255,255,.6)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-top:26px;
  font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--brand-400);text-transform:uppercase
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand-400);border-radius:2px}
.article-hero h1{
  margin-top:14px;font-size:clamp(26px,3.6vw,40px);max-width:920px;color:#fff;
  overflow-wrap:anywhere
}
.hero-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:22px;
  font-size:13px;color:rgba(255,255,255,.72)
}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.45)}
.hero-meta .badge{background:rgba(255,255,255,.14);color:#fff}

/* ---------- 布局 ---------- */
.page-main{padding:72px 0 96px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 304px;gap:56px;align-items:start}
.article-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);padding:44px 48px 48px
}
.article-body{max-width:780px;font-size:17px;line-height:1.85;color:var(--ink-900)}
.article-body h2{
  position:relative;font-size:clamp(21px,2.2vw,27px);padding-left:16px;margin:2.1em 0 .7em;scroll-margin-top:96px
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;width:4px;height:1em;border-radius:2px;background:var(--brand-500)
}
.article-body h3{font-size:19px;margin:1.7em 0 .6em;color:var(--brand-700);scroll-margin-top:96px}
.article-body p{margin-bottom:1.05em;color:#1c231f}
.article-body strong{color:var(--brand-700)}
.article-body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--brand-700)}
.article-body ul,.article-body ol{padding-left:1.35em;margin-bottom:1.2em}
.article-body ul li{list-style:square}
.article-body ul li::marker{color:var(--brand-500)}
.article-body ol li::marker{color:var(--brand-500);font-weight:700}
.article-body li{margin-bottom:.5em}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--brand-050);
  border-left:3px solid var(--brand-500);border-radius:0 14px 14px 0;color:var(--brand-700);font-size:16px
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-m);box-shadow:var(--sh-1);margin:1.8em auto;width:auto}
.article-body figure{margin:1.8em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-400);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th{background:var(--brand-050);color:var(--brand-700);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body code{background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* 空态 */
.empty-panel{
  background:var(--brand-050);border:1px solid #D8E7DE;border-radius:var(--r-m);
  padding:44px 28px;text-align:center
}
.empty-panel .empty-title{font-size:20px;font-weight:700;color:var(--brand-700);margin-bottom:8px}
.empty-panel .empty-desc{color:var(--ink-600);font-size:15px;max-width:520px;margin:0 auto 20px}

/* ---------- 侧栏 ---------- */
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);box-shadow:var(--sh-1);padding:20px 20px 22px}
.side-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink-400);margin-bottom:14px}
.toc-list{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc-list li{margin-bottom:2px}
.toc-list a{
  display:block;padding:7px 10px;border-radius:var(--r-s);font-size:14px;color:var(--ink-600);line-height:1.5;
  border-left:2px solid transparent;transition:all .2s var(--ease)
}
.toc-list a:hover{background:var(--brand-050);color:var(--brand-700)}
.toc-list a.is-current{background:var(--brand-050);color:var(--brand-700);font-weight:600;border-left-color:var(--brand-500)}
.side-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line)}
.side-item:last-child{border-bottom:0;padding-bottom:0}
.side-item img{width:62px;height:46px;object-fit:cover;border-radius:10px;flex:0 0 auto;background:var(--brand-050)}
.side-item .t{font-size:14px;font-weight:600;color:var(--ink-900);line-height:1.45}
.side-item .t:hover{color:var(--brand-500)}
.side-item .m{font-size:12px;color:var(--ink-400);margin-top:2px}
.side-cta{margin-top:4px;display:flex}
.side-cta .btn{width:100%}

/* ---------- 文末推荐 ---------- */
.section{padding:76px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:.2em;width:4px;height:.95em;border-radius:2px;background:var(--brand-500)}
.section-head .sub{color:var(--ink-600);font-size:15px;margin-top:8px}
.link-more{font-size:14px;font-weight:600;white-space:nowrap}
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);box-shadow:var(--sh-1);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-400)}
.card-cover{position:relative;aspect-ratio:16/10;background:var(--brand-050) url("/assets/images/coverpic/cover-3.webp") center/cover no-repeat}
.card-cover .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--brand-700)}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:17px;line-height:1.5}
.card-body p{font-size:14px;color:var(--ink-600);margin:0;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;font-size:13px;color:var(--ink-400);padding-top:8px;border-top:1px solid var(--line)}
.card-foot .read{color:var(--brand-500);font-weight:600}

/* ---------- 尾部 CTA ---------- */
.cta-band{
  position:relative;margin-top:12px;background:var(--brand-900);color:#fff;
  border-radius:var(--r-l);padding:56px 48px;overflow:hidden
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:34px 34px
}
.cta-band .inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);color:#fff}
.cta-band p{color:rgba(255,255,255,.76);margin:10px 0 0;max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:96px;padding:64px 0 88px;position:relative}
.site-footer::before{
  content:"";position:absolute;inset:0;opacity:.05;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,#fff 0 1px,transparent 1px 14px)
}
.site-footer .container{position:relative}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.foot-brand .brand-mark{background:linear-gradient(150deg,var(--brand-400),var(--brand-500))}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66)}
.site-footer h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.foot-list{list-style:none;padding:0;margin:0}
.foot-list li{margin-bottom:10px}
.foot-list a,.site-footer a{color:rgba(255,255,255,.72)}
.foot-list a:hover,.site-footer a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--brand-400);text-underline-offset:3px;text-decoration-thickness:2px}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55)
}
.foot-bottom .editor{color:rgba(255,255,255,.66)}

/* ---------- 浮动入口 ---------- */
.float-cta{position:fixed;right:26px;bottom:26px;z-index:1030;display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.float-btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 20px;border-radius:var(--r-pill);
  background:var(--accent-500);color:#fff;font-weight:600;font-size:14px;border:0;cursor:pointer;
  box-shadow:0 14px 30px -14px rgba(242,101,42,.7);opacity:0;transform:translateY(12px);
  pointer-events:none;transition:all .24s var(--ease)
}
.float-btn.is-shown{opacity:1;transform:translateY(0);pointer-events:auto}
.float-btn:hover{background:#dc551d}
.float-panel{
  display:none;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);box-shadow:var(--sh-2);
  padding:10px;min-width:196px
}
.float-panel.is-open{display:block}
.float-panel a,.float-panel button{
  display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;border-radius:var(--r-s);
  font-size:14px;color:var(--ink-600);background:transparent;border:0;cursor:pointer;text-align:left
}
.float-panel a:hover,.float-panel button:hover{background:var(--brand-050);color:var(--brand-700)}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,43,34,.55);opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:1050
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,360px);background:var(--paper);z-index:1060;
  transform:translateX(100%);transition:transform .26s var(--ease);padding:22px;overflow-y:auto
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-head strong{font-size:16px;color:var(--ink-900)}
.drawer-close{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink-900);cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-nav a{padding:13px 14px;border-radius:var(--r-s);color:var(--ink-900);font-weight:500;font-size:15px}
.drawer-nav a:hover{background:var(--brand-050);color:var(--brand-700)}
.drawer-nav a.is-active{background:var(--brand-050);color:var(--brand-700);font-weight:600}
.drawer .search-form{margin-bottom:20px}

/* ---------- 动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  [data-reveal]{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .layout{grid-template-columns:minmax(0,1fr) 268px;gap:36px}
  .article-card{padding:36px 34px 40px}
}
@media (max-width:991.98px){
  .main-nav{display:none}
  .hamburger{display:inline-flex;align-items:center;justify-content:center}
  .layout{grid-template-columns:minmax(0,1fr)}
  .side-col{position:static}
  .article-hero{padding:132px 0 52px}
  .page-main{padding:56px 0 72px}
  .section{padding:64px 0}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px}
  .site-header{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(11,43,34,.92)}
  .brand-text{font-size:16px}
  .article-card{padding:26px 20px 30px;border-radius:var(--r-m)}
  .article-body{font-size:16px}
  .cta-band{padding:40px 24px;border-radius:var(--r-m)}
  .section{padding:52px 0}
  .foot-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px}
  .article-hero{padding:118px 0 44px}
  .article-hero h1{font-size:24px}
  .crumbs .current{max-width:180px}
  .btn{padding:11px 20px;font-size:14px}
  .float-btn{padding:0;width:56px;height:56px;border-radius:50%;justify-content:center}
  .float-btn span{display:none}
  .float-cta{right:18px;bottom:18px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B2B22;
  --brand-700:#10493A;
  --brand-500:#178A63;
  --brand-400:#2FB27C;
  --brand-050:#EAF3EE;
  --accent-500:#F2652A;
  --accent-050:#FFEDE3;
  --ink-900:#131815;
  --ink-600:#4E5A54;
  --ink-400:#8C948F;
  --paper:#FFFFFF;
  --bg:#F6F7F4;
  --line:#E3E7E2;
  --glass-bg:rgba(12,32,25,.30);
  --glass-line:rgba(255,255,255,.16);
  --r-s:10px;
  --r-m:16px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,34,26,.06),0 8px 24px -12px rgba(15,34,26,.18);
  --sh-2:0 18px 40px -20px rgba(15,34,26,.32);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#178A63;
  --bs-primary-rgb:23,138,99;
  --bs-body-color:#131815;
  --bs-body-bg:#F6F7F4;
  --bs-border-color:#E3E7E2;
  --bs-link-color:#178A63;
  --bs-link-hover-color:#10493A;
  --bs-border-radius:16px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-body-font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink-900);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease)}
a:hover{color:var(--brand-700)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--ink-900)}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
section[id],div[id]{scroll-margin-top:96px}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.no-scroll{overflow:hidden}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--glass-line);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.6);
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  background:var(--paper);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  height:72px;
  display:flex;
  align-items:center;
  gap:26px;
  transition:height .24s var(--ease);
}
.site-header.is-stuck .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;letter-spacing:.01em;flex-shrink:0}
.site-header.is-stuck .brand{color:var(--ink-900)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--brand-500);color:#fff;
  display:grid;place-items:center;font-size:15px;
  box-shadow:0 6px 16px -8px rgba(23,138,99,.9);
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav .nav-link{
  position:relative;
  display:inline-block;
  padding:8px 13px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:500;
  color:rgba(255,255,255,.86);
  white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.main-nav .nav-link:hover{color:#fff;background:rgba(255,255,255,.13)}
.main-nav .nav-link.is-active{color:#fff;background:rgba(255,255,255,.15)}
.main-nav .nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  border-radius:2px;background:var(--brand-400);
}
.site-header.is-stuck .main-nav .nav-link{color:var(--ink-600)}
.site-header.is-stuck .main-nav .nav-link:hover{color:var(--brand-500);background:var(--brand-050)}
.site-header.is-stuck .main-nav .nav-link.is-active{color:var(--brand-500);background:var(--brand-050)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.10);
  color:#fff;display:grid;place-items:center;cursor:pointer;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.5)}
.site-header.is-stuck .icon-btn{color:var(--ink-600);border-color:var(--line);background:#fff}
.site-header.is-stuck .icon-btn:hover{color:var(--brand-500);border-color:var(--brand-400);background:var(--brand-050)}
.hamburger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.10);
  cursor:pointer;
  place-items:center;
  gap:4px;
  padding:11px;
  flex-direction:column;
  justify-content:center;
  align-items:center;
}
.hamburger span{display:block;width:20px;height:2px;border-radius:2px;background:#fff;transition:background-color .2s var(--ease)}
.site-header.is-stuck .hamburger{border-color:var(--line);background:#fff}
.site-header.is-stuck .hamburger span{background:var(--ink-900)}

/* 按钮 */
.btn{
  --bs-btn-focus-box-shadow:none;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,138,99,.3)}
.btn-primary{background:var(--accent-500);border-color:var(--accent-500);color:#fff}
.btn-primary:hover{background:#DA541E;border-color:#DA541E;color:#fff;transform:translateY(-1px)}
.btn-primary:active{background:#C64A18;border-color:#C64A18;color:#fff;transform:translateY(0)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-500);background:var(--brand-050)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:148px 0 68px;
  background:var(--brand-900);
  color:#fff;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:52px 52px;
}
.page-hero::after{
  content:"";position:absolute;left:-140px;bottom:-180px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(47,178,124,.30),transparent 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.66);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:#fff}
.crumb .sep{color:rgba(255,255,255,.38)}
.crumb .current{color:#fff}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
  color:#fff;margin-bottom:20px;
}
.hero-eyebrow i{color:var(--brand-400)}
.page-hero h1{
  font-size:clamp(30px,4.4vw,46px);
  line-height:1.28;
  color:#fff;
  max-width:900px;
  margin-bottom:18px;
}
.page-hero .hero-sub{
  max-width:720px;
  font-size:17px;
  color:rgba(255,255,255,.82);
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:rgba(255,255,255,.16);
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  max-width:960px;
}
.stat-item{background:rgba(11,43,34,.62);padding:20px 24px}
.stat-num{font-size:26px;font-weight:700;color:#fff;line-height:1.2}
.stat-num small{font-size:13px;font-weight:600;color:var(--brand-400);margin-left:2px}
.stat-label{font-size:13px;color:rgba(255,255,255,.66);margin-top:4px}

/* ============ 通用区块 ============ */
.section{padding:96px 0}
.section--paper{background:var(--paper)}
.section--tight{padding:72px 0}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--brand-500);margin-bottom:12px}
.sec-head h2{
  position:relative;
  padding-left:16px;
  font-size:clamp(24px,3vw,32px);
  line-height:1.32;
  margin-bottom:14px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--brand-500);
}
.sec-head.center h2{padding-left:0}
.sec-head.center h2::before{display:none}
.sec-head p{color:var(--ink-600);font-size:16.5px;max-width:720px}
.sec-head.center p{margin-left:auto;margin-right:auto}

/* ============ 图文交错 ============ */
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.feature-row + .feature-row{margin-top:88px}
.feature-row.is-reverse .feature-media{order:2}
.feature-media{position:relative}
.feature-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  background:var(--brand-050);
}
.feature-body h3{font-size:clamp(21px,2.3vw,26px);line-height:1.4;margin-bottom:14px}
.feature-body p{color:var(--ink-600)}
.feature-body p:first-of-type{color:var(--ink-900)}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--brand-500);
  margin-top:6px;
}
.link-more i{font-size:12px;transition:transform .2s var(--ease)}
.link-more:hover{color:var(--brand-700)}
.link-more:hover i{transform:translateX(4px)}

/* ============ 卡片 ============ */
.card-base{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card-base:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-400)}
.scene-grid{
  display:grid;
  grid-template-columns:1.3fr 1fr;
  grid-template-rows:auto auto;
  gap:24px;
}
.scene-card{padding:30px 30px 32px}
.scene-card--lead{
  grid-row:span 2;
  display:flex;
  flex-direction:column;
  gap:18px;
  padding:0;
  overflow:hidden;
}
.scene-card--lead img{aspect-ratio:16/10;object-fit:cover;width:100%;background:var(--brand-050)}
.scene-lead-body{padding:4px 30px 32px}
.scene-icon{
  width:44px;height:44px;border-radius:13px;
  background:var(--brand-050);color:var(--brand-500);
  display:grid;place-items:center;font-size:18px;margin-bottom:16px;
}
.scene-card h3{font-size:19px;margin-bottom:10px}
.scene-card p{color:var(--ink-600);font-size:15.5px}
.scene-card--accent{background:var(--brand-050);border-color:rgba(23,138,99,.18)}
.scene-card--accent .scene-icon{background:#fff}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;
  background:var(--brand-050);color:var(--brand-700);
}
.badge-accent{background:var(--accent-050);color:var(--accent-500)}

/* ============ 流程 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{
  position:relative;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:30px 28px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-400)}
.step:nth-child(2){margin-top:32px}
.step-num{
  font-size:28px;font-weight:700;color:var(--brand-500);
  line-height:1;margin-bottom:16px;letter-spacing:.02em;
}
.step h3{font-size:18.5px;margin-bottom:10px}
.step p{color:var(--ink-600);font-size:15.5px}

/* ============ 数据条（浅色区） ============ */
.data-band{
  background:var(--brand-050);
  border:1px solid rgba(23,138,99,.14);
  border-radius:var(--r-l);
  padding:36px 40px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.data-cell{border-left:3px solid var(--brand-500);padding-left:18px}
.data-cell .num{font-size:30px;font-weight:700;color:var(--brand-700);line-height:1.2}
.data-cell .num small{font-size:14px;font-weight:600;color:var(--brand-500);margin-left:4px}
.data-cell .txt{font-size:14px;color:var(--ink-600);margin-top:6px}

/* ============ FAQ ============ */
.faq-wrap{
  background:var(--brand-050);
  border-radius:var(--r-l);
  padding:14px 30px 30px;
  border:1px solid rgba(23,138,99,.14);
}
.faq-wrap .accordion-item{background:transparent;border:0;border-bottom:1px solid rgba(23,138,99,.16)}
.faq-wrap .accordion-item:last-child{border-bottom:0}
.faq-wrap .accordion-button{
  background:transparent;
  color:var(--ink-900);
  font-size:17px;
  font-weight:600;
  padding:22px 16px;
  border-radius:var(--r-s);
  border-left:3px solid transparent;
  display:flex;
  align-items:center;
  gap:14px;
  box-shadow:none;
  transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.faq-wrap .accordion-button::after{display:none}
.faq-wrap .accordion-button:not(.collapsed){
  color:var(--brand-500);
  background:rgba(255,255,255,.72);
  border-left-color:var(--brand-500);
  box-shadow:none;
}
.faq-wrap .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-wrap .accordion-button:not(.collapsed):focus{border-left-color:var(--brand-500)}
.faq-num{
  font-size:13px;font-weight:700;color:var(--brand-500);
  letter-spacing:.06em;flex-shrink:0;
}
.faq-sign{
  margin-left:auto;flex-shrink:0;
  width:22px;height:22px;
  display:grid;place-items:center;
  font-size:19px;font-weight:600;color:var(--brand-500);
  line-height:1;
}
.faq-sign::before{content:"+"}
.accordion-button:not(.collapsed) .faq-sign::before{content:"−"}
.faq-wrap .accordion-body{
  padding:0 16px 26px 52px;
  color:var(--ink-600);
  font-size:15.8px;
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--brand-900);
  border-radius:var(--r-l);
  padding:56px 52px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  color:#fff;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.78);max-width:560px;margin:0}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  overflow:hidden;
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:76px 0 88px;
  margin-top:96px;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:52px 52px;
}
.site-footer .container{position:relative;z-index:2}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-logo{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;
}
.footer-logo .brand-mark{width:32px;height:32px;border-radius:10px;font-size:14px}
.footer-desc{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66);max-width:340px}
.footer-sign{
  margin-top:18px;font-size:14px;color:rgba(255,255,255,.82);
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.02em}
.footer-col li{margin-bottom:11px;font-size:14.5px}
.footer-col a{color:rgba(255,255,255,.72);border-bottom:2px solid transparent;padding-bottom:2px}
.footer-col a:hover{color:#fff;border-bottom-color:var(--brand-400)}
.footer-contact li{color:rgba(255,255,255,.72);font-size:14.5px;line-height:1.7}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding-top:26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.56);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:28px;bottom:28px;
  z-index:1040;
  display:flex;flex-direction:column;align-items:flex-end;gap:12px;
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.float-cta.is-visible{opacity:1;transform:none;pointer-events:auto}
.float-panel{
  display:none;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-2);
  padding:8px;
  min-width:186px;
}
.float-cta.is-open .float-panel{display:flex}
.float-panel a,.float-panel button{
  display:flex;align-items:center;gap:10px;
  padding:11px 14px;border-radius:var(--r-s);
  font-size:14.5px;color:var(--ink-900);
  background:transparent;border:0;cursor:pointer;text-align:left;width:100%;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.float-panel a:hover,.float-panel button:hover{background:var(--brand-050);color:var(--brand-500)}
.float-panel i{color:var(--brand-500);width:16px;text-align:center}
.float-btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 22px;
  border-radius:var(--r-pill);
  border:0;cursor:pointer;
  background:var(--brand-500);color:#fff;
  font-size:15px;font-weight:600;
  box-shadow:0 16px 32px -16px rgba(23,138,99,.85);
  transition:background-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.float-btn:hover{background:var(--brand-700);transform:translateY(-2px);box-shadow:0 20px 36px -16px rgba(16,73,58,.9)}
.float-btn span{white-space:nowrap}

/* ============ 移动端抽屉 ============ */
.mobile-drawer{position:fixed;inset:0;z-index:1060;visibility:hidden;pointer-events:none}
.mobile-drawer.is-open{visibility:visible;pointer-events:auto}
.drawer-mask{
  position:absolute;inset:0;
  background:rgba(11,43,34,.55);
  opacity:0;transition:opacity .24s var(--ease);
}
.mobile-drawer.is-open .drawer-mask{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;
  width:min(84vw,360px);height:100%;
  background:#fff;
  box-shadow:-18px 0 46px -22px rgba(15,34,26,.5);
  padding:22px 22px 32px;
  display:flex;flex-direction:column;gap:20px;
  transform:translateX(100%);
  transition:transform .26s var(--ease);
  overflow-y:auto;
}
.mobile-drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-title{font-size:16px;font-weight:700}
.drawer-close{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--ink-600);
  display:grid;place-items:center;cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.drawer-close:hover{color:var(--brand-500);border-color:var(--brand-400);background:var(--brand-050)}
.drawer-search input{
  width:100%;height:46px;
  border-radius:var(--r-s);
  border:1px solid var(--line);
  padding:0 16px;font-size:15px;
  background:#fff;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.drawer-search input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-050)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  padding:13px 14px;border-radius:var(--r-s);
  font-size:15.5px;font-weight:500;color:var(--ink-900);
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.drawer-nav a:hover{background:var(--brand-050);color:var(--brand-500)}
.drawer-nav a.is-active{background:var(--brand-050);color:var(--brand-500);font-weight:600}
.drawer-cta{width:100%}

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

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .feature-row{gap:40px}
}
@media (max-width:991.98px){
  .main-nav{display:none}
  .hamburger{display:flex}
  .header-actions .btn-cta{display:none}
  .page-hero{padding:128px 0 56px}
  .section{padding:64px 0}
  .section--tight{padding:56px 0}
  .sec-head{margin-bottom:36px}
  .feature-row{grid-template-columns:1fr;gap:28px}
  .feature-row.is-reverse .feature-media{order:0}
  .feature-row + .feature-row{margin-top:64px}
  .scene-grid{grid-template-columns:1fr;grid-template-rows:auto}
  .scene-card--lead{grid-row:auto}
  .steps{grid-template-columns:1fr 1fr}
  .step:nth-child(2){margin-top:0}
  .data-band{grid-template-columns:1fr;gap:20px;padding:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:44px 32px}
  .site-footer{margin-top:72px}
}
@media (max-width:767.98px){
  .site-header{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(11,43,34,.94)}
  .site-header.is-stuck{background:var(--paper)}
  .header-inner{padding:0 18px;gap:14px}
  .stat-strip{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .faq-wrap{padding:10px 18px 22px}
  .faq-wrap .accordion-button{font-size:15.8px;padding:18px 12px}
  .faq-wrap .accordion-body{padding:0 12px 22px 12px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:56px 0 96px}
  .float-cta{right:18px;bottom:18px}
  .float-btn{width:56px;height:56px;padding:0;border-radius:50%;justify-content:center}
  .float-btn span{display:none}
}
@media (max-width:575.98px){
  body{font-size:16px}
  .container{padding-left:18px;padding-right:18px}
  .page-hero{padding:118px 0 48px}
  .page-hero .hero-sub{font-size:15.8px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .stat-item{padding:16px 18px}
  .stat-num{font-size:23px}
  .scene-card{padding:24px 22px 26px}
  .scene-lead-body{padding:2px 22px 26px}
  .step{padding:24px 22px}
  .cta-band{padding:34px 22px;border-radius:var(--r-m)}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{flex:1}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B2B22;
  --brand-700:#10493A;
  --brand-500:#178A63;
  --brand-400:#2FB27C;
  --brand-050:#EAF3EE;
  --accent-500:#F2652A;
  --accent-050:#FFEDE3;
  --ink-900:#131815;
  --ink-600:#4E5A54;
  --ink-400:#8C948F;
  --paper:#FFFFFF;
  --bg:#F6F7F4;
  --line:#E3E7E2;
  --glass-bg:rgba(12,32,25,.30);
  --glass-line:rgba(255,255,255,.16);
  --r-s:10px;
  --r-m:16px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,34,26,.06),0 8px 24px -12px rgba(15,34,26,.18);
  --sh-2:0 18px 40px -20px rgba(15,34,26,.32);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#178A63;
  --bs-link-color:#178A63;
  --bs-link-hover-color:#10493A;
  --bs-body-bg:#F6F7F4;
  --bs-body-color:#131815;
  --bs-border-color:#E3E7E2;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink-900);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color 200ms var(--ease),border-color 200ms var(--ease)}
a:hover{color:var(--brand-700)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:.01em}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--odd{padding:88px 0}
.section--dense{padding:112px 0}
.section--soft{padding:72px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--brand-500);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent-500);border-radius:2px}
.section-title{font-size:clamp(24px,3vw,32px);line-height:1.32}
.section-title::before{
  content:"";display:inline-block;width:4px;height:.86em;
  background:var(--brand-500);border-radius:2px;margin-right:12px;
  vertical-align:-.06em;
}
.section-lead{margin-top:16px;color:var(--ink-600);max-width:760px}
.reveal{transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.js .reveal{opacity:0;transform:translateY(12px)}
.js .reveal.is-in{opacity:1;transform:none}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;height:72px;
  display:flex;align-items:center;
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--glass-line);
  box-shadow:0 6px 24px -18px rgba(0,0,0,.6);
  transition:background 240ms var(--ease),height 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease);
}
.site-header.is-stuck{
  height:64px;background:var(--paper);border-bottom-color:var(--line);box-shadow:var(--sh-1);
}
.header-inner{display:flex;align-items:center;gap:24px;width:100%}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand-500),var(--brand-400));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:700;font-size:15px;letter-spacing:.02em;
}
.brand-text{
  font-size:17px;font-weight:700;color:#fff;letter-spacing:.01em;
  transition:color 240ms var(--ease);
}
.site-header.is-stuck .brand-text{color:var(--ink-900)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:12px;flex:1 1 auto}
.site-header .nav-link{
  position:relative;padding:8px 0;font-size:15px;font-weight:500;
  color:rgba(255,255,255,.88);
}
.site-header .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;
  transition:transform 200ms var(--ease);
}
.site-header .nav-link:hover{color:#fff}
.site-header .nav-link:hover::after,
.site-header .nav-link.is-active::after{transform:scaleX(1)}
.site-header .nav-link.is-active{color:#fff}
.site-header.is-stuck .nav-link{color:var(--ink-600)}
.site-header.is-stuck .nav-link:hover,
.site-header.is-stuck .nav-link.is-active{color:var(--brand-500)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);background:transparent;color:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.14)}
.site-header.is-stuck .icon-btn{border-color:var(--line);color:var(--ink-900)}
.site-header.is-stuck .icon-btn:hover{background:var(--brand-050);color:var(--brand-500);border-color:var(--brand-400)}
.hamburger{
  display:none;width:44px;height:44px;border-radius:var(--r-s);
  border:1px solid rgba(255,255,255,.28);background:transparent;cursor:pointer;
  padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:background 240ms var(--ease)}
.site-header.is-stuck .hamburger{border-color:var(--line)}
.site-header.is-stuck .hamburger span{background:var(--ink-900)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1.2;
  border-radius:var(--r-pill);border:1px solid transparent;cursor:pointer;
  transition:background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),transform 200ms var(--ease),box-shadow 200ms var(--ease);
}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:0 10px 24px -14px rgba(242,101,42,.9)}
.btn-accent:hover{background:#D9541C;color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-outline{background:var(--paper);border-color:var(--line);color:var(--ink-900)}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-500);background:var(--brand-050)}
.btn-solid{background:var(--brand-500);color:#fff}
.btn-solid:hover{background:var(--brand-700);color:#fff}
.btn-sm{padding:10px 18px;font-size:14px}
.btn:focus-visible,.nav-link:focus-visible,.icon-btn:focus-visible,.hamburger:focus-visible,
a:focus-visible,button:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(84vw,360px);
  background:var(--paper);z-index:1200;padding:28px 24px;overflow-y:auto;
  transform:translateX(102%);transition:transform 260ms var(--ease);
  box-shadow:-24px 0 60px -30px rgba(11,43,34,.5);
}
body.nav-open .nav-drawer{transform:none}
.nav-mask{
  position:fixed;inset:0;background:rgba(11,43,34,.55);z-index:1100;
  opacity:0;visibility:hidden;transition:opacity 240ms var(--ease),visibility 240ms var(--ease);
}
body.nav-open .nav-mask{opacity:1;visibility:visible}
body.nav-open{overflow:hidden}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink-900)}
.drawer-close{
  width:36px;height:36px;border-radius:var(--r-s);border:1px solid var(--line);
  background:transparent;color:var(--ink-600);cursor:pointer;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:24px}
.drawer-nav a{
  padding:13px 14px;border-radius:var(--r-s);color:var(--ink-900);font-size:15.5px;font-weight:500;
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.drawer-nav a:hover{background:var(--brand-050);color:var(--brand-500)}
.drawer-nav a.is-active{background:var(--brand-050);color:var(--brand-500)}
.drawer-cta{display:flex;flex-direction:column;gap:10px}
.drawer-cta .btn{width:100%}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;background:var(--brand-900);color:#fff;
  padding:132px 0 52px;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:54px 54px;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,178,124,.32),transparent 68%);pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.65);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumb-current{color:rgba(255,255,255,.95)}
.crumb span[aria-hidden]{color:rgba(255,255,255,.4)}
.page-hero h1{font-size:clamp(28px,4.2vw,42px);line-height:1.28;max-width:880px}
.hero-sub{margin-top:14px;font-size:17px;color:rgba(255,255,255,.78);max-width:660px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:14px 40px;margin-top:32px;
  padding-top:24px;border-top:1px solid rgba(255,255,255,.14);
}
.hero-stats li{display:flex;align-items:baseline;gap:10px}
.hero-stats strong{font-size:26px;font-weight:700;color:var(--brand-400);line-height:1}
.hero-stats span{font-size:13.5px;color:rgba(255,255,255,.72)}

/* ---------- 概览 ---------- */
.scope-head{max-width:760px;margin-bottom:44px}
.scope-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:24px;align-items:start}
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-400)}
.scope-main{padding:0;overflow:hidden;display:flex;flex-direction:column}
.scope-main figure{margin:0}
.scope-main img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-m) var(--r-m) 0 0;background:var(--brand-050)}
.scope-main .scope-body{padding:26px 28px 30px}
.scope-main h3{font-size:20px;margin-bottom:12px}
.scope-main p{color:var(--ink-600)}
.scope-side{display:flex;flex-direction:column;gap:24px}
.scope-mini{padding:24px 26px}
.scope-mini .mini-ico{
  width:40px;height:40px;border-radius:12px;background:var(--brand-050);
  color:var(--brand-500);display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;margin-bottom:16px;
}
.scope-mini h3{font-size:17.5px;margin-bottom:8px}
.scope-mini p{font-size:15px;color:var(--ink-600)}
.scope-mini.is-soft{background:var(--brand-050);border-color:#D5E6DC}
.scope-mini.is-soft .mini-ico{background:var(--paper);color:var(--brand-700)}

/* ---------- 条目纵深层 ---------- */
.detail-section{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.detail-layout{display:grid;grid-template-columns:260px 1fr;gap:56px;align-items:start}
.toc{position:sticky;top:96px}
.toc-label{font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--ink-400);margin-bottom:14px}
.toc-list{display:flex;flex-direction:column;gap:2px;border-left:2px solid var(--line)}
.toc-list a{
  display:block;padding:10px 14px;font-size:14.5px;color:var(--ink-600);
  border-left:2px solid transparent;margin-left:-2px;
  transition:color 200ms var(--ease),background 200ms var(--ease),border-color 200ms var(--ease);
}
.toc-list a:hover{color:var(--brand-500);background:var(--brand-050)}
.toc-list a.is-current{color:var(--brand-500);border-left-color:var(--brand-500);background:var(--brand-050);font-weight:600}
.toc-note{margin-top:24px;padding:16px 18px;background:var(--bg);border-radius:var(--r-s);font-size:13.5px;color:var(--ink-600);line-height:1.7}
.detail-head{margin-bottom:40px}
.entry{
  position:relative;padding:32px 40px 32px 0;border-bottom:1px solid var(--line);
  scroll-margin-top:96px;
}
.entry:first-of-type{padding-top:8px}
.entry:last-of-type{border-bottom:none}
.entry::after{
  content:"→";position:absolute;right:6px;top:36px;font-size:18px;color:var(--brand-500);
  opacity:0;transform:translateX(-8px);
  transition:opacity 220ms var(--ease),transform 220ms var(--ease);
}
.entry:hover::after{opacity:1;transform:none}
.entry-num{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--brand-500);margin-bottom:10px;
}
.entry h3{font-size:20px;margin-bottom:12px;transition:color 200ms var(--ease)}
.entry:hover h3{color:var(--brand-700)}
.entry p{color:var(--ink-600);max-width:760px}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:500;background:var(--brand-050);color:var(--brand-700);
}
.tag--accent{background:var(--accent-050);color:var(--accent-500)}

/* ---------- 图文区 ---------- */
.read-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.read-figure{margin:0;position:relative}
.read-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-l);
  box-shadow:var(--sh-1);background:var(--brand-050);
}
.read-figure figcaption{margin-top:14px;font-size:13px;color:var(--ink-400);text-align:center}
.read-body h2{margin-bottom:18px}
.read-body p{color:var(--ink-600)}
.step-list{margin-top:28px;display:flex;flex-direction:column;gap:20px}
.step-item{display:flex;gap:16px;align-items:flex-start}
.step-no{
  flex:0 0 auto;font-size:15px;font-weight:700;color:var(--brand-500);
  line-height:1.6;letter-spacing:.06em;
}
.step-item strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px}
.step-item span{font-size:14.5px;color:var(--ink-600);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-section{background:var(--brand-050)}
.faq-head{max-width:700px;margin-bottom:40px}
.faq-wrap{max-width:900px}
.accordion-item{
  background:var(--paper);border:1px solid #D5E6DC;border-radius:var(--r-m);
  margin-bottom:14px;overflow:hidden;box-shadow:0 1px 2px rgba(15,34,26,.05);
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  position:relative;display:flex;align-items:flex-start;gap:18px;width:100%;
  padding:22px 58px 22px 26px;background:transparent;border:0;
  font-size:17px;font-weight:600;color:var(--ink-900);text-align:left;cursor:pointer;
  transition:color 200ms var(--ease),background 200ms var(--ease),box-shadow 200ms var(--ease);
}
.accordion-button:focus{outline:none;box-shadow:none}
.accordion-button:focus-visible{outline:2px solid var(--brand-500);outline-offset:-4px}
.accordion-button::after{display:none}
.accordion-button::before{
  content:"+";position:absolute;right:26px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand-500);line-height:1;
}
.accordion-button:not(.collapsed)::before{content:"−"}
.accordion-button:not(.collapsed){
  color:var(--brand-500);box-shadow:inset 3px 0 0 var(--brand-500);
}
.acc-num{flex:0 0 auto;font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--brand-500);padding-top:5px}
.accordion-body{
  padding:18px 58px 24px 68px;background:var(--brand-050);color:var(--ink-600);font-size:15.5px;
}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;background:var(--brand-900);color:#fff;border-radius:var(--r-l);
  padding:64px 56px;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-text h2{font-size:clamp(23px,2.8vw,30px);color:#fff}
.cta-text p{margin-top:12px;color:rgba(255,255,255,.76);max-width:560px}
.cta-section{padding:96px 0 72px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--brand-900);color:rgba(255,255,255,.72);
  padding:76px 0 0;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:52px 52px;pointer-events:none;
}
.site-footer .container{position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-logo{font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14.5px;line-height:1.85;max-width:340px}
.footer-sign{margin-top:14px;font-size:13.5px;color:rgba(255,255,255,.55)}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;text-decoration-color:var(--brand-400)}
.footer-contact li{font-size:14.5px;line-height:1.7}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 96px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}

/* ---------- 浮动 CTA ---------- */
.fab-wrap{
  position:fixed;right:28px;bottom:28px;z-index:1050;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity 240ms var(--ease),transform 240ms var(--ease),visibility 240ms var(--ease);
}
.fab-wrap.is-visible{opacity:1;visibility:visible;transform:none}
.fab{
  display:inline-flex;align-items:center;gap:8px;padding:13px 22px;
  border-radius:var(--r-pill);border:0;background:var(--brand-500);color:#fff;
  font-size:15px;font-weight:600;cursor:pointer;box-shadow:0 18px 36px -18px rgba(11,43,34,.7);
  transition:background 200ms var(--ease),transform 200ms var(--ease);
}
.fab:hover{background:var(--brand-700);transform:translateY(-1px)}
.fab-panel{
  position:absolute;right:0;bottom:60px;width:200px;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--r-m);box-shadow:var(--sh-2);
  padding:10px;display:none;flex-direction:column;gap:4px;
}
.fab-wrap.is-open .fab-panel{display:flex}
.fab-panel a{
  padding:10px 12px;border-radius:var(--r-s);font-size:14.5px;color:var(--ink-900);
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.fab-panel a:hover{background:var(--brand-050);color:var(--brand-500)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .detail-layout{grid-template-columns:220px 1fr;gap:40px}
  .read-grid{gap:40px}
}
@media (max-width:991.98px){
  .main-nav{display:none}
  .header-actions .btn,.header-actions .icon-btn{display:none}
  .hamburger{display:flex}
  .section{padding:72px 0}
  .section--odd{padding:64px 0}
  .section--dense{padding:76px 0}
  .section--soft{padding:56px 0}
  .scope-grid{grid-template-columns:1fr}
  .detail-layout{grid-template-columns:1fr;gap:28px}
  .toc{position:static}
  .toc-list{flex-direction:row;flex-wrap:wrap;border-left:none;gap:8px}
  .toc-list a{
    border:1px solid var(--line);border-radius:var(--r-pill);margin-left:0;padding:8px 14px;font-size:13.5px;
  }
  .toc-list a.is-current{border-color:var(--brand-500)}
  .toc-note{display:none}
  .read-grid{grid-template-columns:1fr}
  .read-figure{order:-1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:48px 32px}
}
@media (max-width:767.98px){
  .site-header{background:var(--brand-900);-webkit-backdrop-filter:none;backdrop-filter:none}
  .site-header.is-stuck{background:var(--paper)}
  .page-hero{padding:112px 0 44px}
  .entry{padding:26px 0;border-bottom:1px solid var(--line)}
  .entry::after{display:none}
  .entry-tags{margin-top:12px}
  .accordion-body{padding:16px 24px 22px 26px}
  .accordion-button{padding:18px 52px 18px 20px;font-size:16px}
  .accordion-button::before{right:20px}
  .cta-section{padding:72px 0 56px}
}
@media (max-width:575.98px){
  .container{padding:0 18px}
  .page-hero{padding:104px 0 40px}
  .hero-stats{gap:14px 24px}
  .hero-stats strong{font-size:22px}
  .section{padding:56px 0}
  .section--odd{padding:52px 0}
  .section--dense{padding:60px 0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{padding-bottom:104px;flex-direction:column}
  .fab-wrap{right:16px;bottom:16px}
  .fab{padding:0;width:56px;height:56px;justify-content:center;font-size:0;gap:0}
  .fab .fab-ico{font-size:19px}
  .fab-panel{right:0;bottom:66px}
  .cta-band{padding:38px 22px;border-radius:var(--r-m)}
  .btn{padding:11px 20px}
  .scope-main .scope-body{padding:22px 20px 24px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B2B22;
  --brand-700:#10493A;
  --brand-500:#178A63;
  --brand-400:#2FB27C;
  --brand-050:#EAF3EE;
  --accent-500:#F2652A;
  --accent-050:#FFEDE3;
  --ink-900:#131815;
  --ink-600:#4E5A54;
  --ink-400:#8C948F;
  --paper:#FFFFFF;
  --bg:#F6F7F4;
  --line:#E3E7E2;
  --r-s:10px;
  --r-m:16px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,34,26,.06), 0 8px 24px -12px rgba(15,34,26,.18);
  --sh-2:0 18px 40px -20px rgba(15,34,26,.32);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:72px;
  --bs-primary:#178A63;
  --bs-primary-rgb:23,138,99;
  --bs-body-color:#131815;
  --bs-body-bg:#F6F7F4;
  --bs-border-radius:16px;
  --bs-font-sans-serif:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink-900);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.28}
h2{font-size:clamp(24px,3vw,32px);line-height:1.32}
h3{font-size:20px;line-height:1.4;font-weight:600}
p{margin:0 0 1.05em}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;background:none;border:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin-inline:auto;padding-inline:24px}
@media (max-width:575.98px){.container{padding-inline:18px}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--r-pill);font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease)}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-accent{background:var(--accent-500);color:#fff}
.btn-accent:hover{background:#dc541e;color:#fff;box-shadow:0 12px 26px -14px rgba(242,101,42,.75)}
.btn-outline{background:var(--paper);border-color:var(--line);color:var(--ink-900)}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-500);background:var(--brand-050)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff}
.btn-solid{background:var(--brand-500);color:#fff}
.btn-solid:hover{background:var(--brand-700);color:#fff}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1035;
  background:rgba(12,32,25,.30);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  box-shadow:0 10px 30px -24px rgba(0,0,0,.85);
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.header-inner{display:flex;align-items:center;gap:26px;height:var(--nav-h);transition:height .24s var(--ease)}
.site-header.is-stuck{background:var(--paper);border-bottom-color:var(--line);box-shadow:var(--sh-1);--nav-h:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none!important}
.brand:hover{text-decoration:none}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:12px;background:linear-gradient(140deg,var(--brand-400),var(--brand-700));color:#fff;font-size:16px;box-shadow:0 8px 18px -12px rgba(11,43,34,.9)}
.brand-text{font-size:17.5px;font-weight:700;letter-spacing:.02em;color:#fff;white-space:nowrap;transition:color .24s var(--ease)}
.site-header.is-stuck .brand-text{color:var(--ink-900)}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav .nav-link{
  position:relative;display:inline-block;padding:8px 12px;border-radius:var(--r-s);
  font-size:15px;font-weight:500;color:rgba(255,255,255,.86);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.main-nav .nav-link:hover{color:#fff;background:rgba(255,255,255,.10);text-decoration:none}
.main-nav .nav-link.is-active{color:#fff;font-weight:600}
.main-nav .nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-400);
}
.site-header.is-stuck .main-nav .nav-link{color:var(--ink-600)}
.site-header.is-stuck .main-nav .nav-link:hover{color:var(--brand-700);background:var(--brand-050)}
.site-header.is-stuck .main-nav .nav-link.is-active{color:var(--brand-500)}
.site-header.is-stuck .main-nav .nav-link.is-active::after{background:var(--brand-500)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;
  color:rgba(255,255,255,.88);border:1px solid rgba(255,255,255,.22);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.14);color:#fff}
.site-header.is-stuck .icon-btn{color:var(--ink-600);border-color:var(--line)}
.site-header.is-stuck .icon-btn:hover{color:var(--brand-500);border-color:var(--brand-400);background:var(--brand-050)}
.header-cta{padding:10px 20px;font-size:14.5px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.24);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:background .2s var(--ease)}
.site-header.is-stuck .nav-toggle{border-color:var(--line)}
.site-header.is-stuck .nav-toggle span{background:var(--ink-900)}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:1060;
  width:min(84vw,360px);background:var(--paper);
  box-shadow:-20px 0 50px -30px rgba(11,43,34,.6);
  transform:translateX(102%);transition:transform .28s var(--ease);
  padding:22px 22px 32px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;z-index:1055;background:rgba(11,43,34,.55);opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease)}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-brand{font-size:16px;font-weight:700;color:var(--ink-900)}
.drawer-close{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);color:var(--ink-600);display:inline-flex;align-items:center;justify-content:center}
.drawer-close:hover{color:var(--brand-500);border-color:var(--brand-400);background:var(--brand-050)}
.drawer-search{margin-bottom:20px}
.drawer-search input{
  width:100%;height:46px;border-radius:var(--r-s);border:1px solid var(--line);
  padding:0 14px;font-size:15px;color:var(--ink-900);background:var(--bg);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.drawer-search input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-050);background:var(--paper)}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:24px}
.drawer-nav a{display:block;padding:12px 12px;border-radius:var(--r-s);color:var(--ink-900);font-size:15.5px;font-weight:500}
.drawer-nav a:hover{background:var(--brand-050);color:var(--brand-700);text-decoration:none}
.drawer-nav a.is-active{background:var(--brand-050);color:var(--brand-700);font-weight:600}
.drawer-cta{width:100%}
body.drawer-open{overflow:hidden}

/* ---------- 首屏 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;padding:calc(var(--nav-h) + 62px) 0 64px}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:58px 58px;
  opacity:.65;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,178,124,.35),rgba(11,43,34,0) 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.74)}
.crumb a:hover{color:#fff}
.crumb .sep{color:rgba(255,255,255,.4)}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--brand-400);text-transform:uppercase;margin-bottom:12px}
.page-hero h1{color:#fff;max-width:20ch}
.hero-sub{margin:18px 0 0;max-width:660px;font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.78)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14)}
.hero-meta span{font-size:13.5px;color:rgba(255,255,255,.66)}
.hero-meta strong{display:block;font-size:19px;font-weight:700;color:#fff;margin-bottom:2px;font-variant-numeric:tabular-nums}

/* ---------- 通用板块 ---------- */
.section{padding:92px 0}
.section.is-tight{padding:64px 0}
.section.is-plain{background:var(--paper)}
.section-head{max-width:760px;margin-bottom:44px;position:relative;padding-left:18px}
.section-head::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--brand-500)}
.section-head h2{margin-bottom:12px}
.section-head p{margin:0;color:var(--ink-600);max-width:720px}
[ id ]{scroll-margin-top:96px}
.section#channels,.section#feed,.section#subscribe,.section#faq{scroll-margin-top:96px}

/* 节奏条 */
.band{padding:56px 0;background:var(--paper);border-bottom:1px solid var(--line)}
.band-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.band-item{padding:22px 24px;border-radius:var(--r-m);background:var(--brand-050);border:1px solid transparent}
.band-item strong{display:block;font-size:30px;font-weight:700;color:var(--brand-500);line-height:1.2;font-variant-numeric:tabular-nums}
.band-item span{display:block;margin-top:6px;font-size:14px;color:var(--ink-600)}
.band-item.is-accent{background:var(--accent-050)}
.band-item.is-accent strong{color:var(--accent-500)}
.band-item.is-plain{background:var(--bg);border-color:var(--line)}
.band-item.is-plain strong{color:var(--ink-900)}

/* 对比表 */
.compare-wrap{
  border:1px solid var(--line);border-radius:var(--r-m);background:var(--paper);
  box-shadow:var(--sh-1);overflow-x:auto;-webkit-overflow-scrolling:touch;
}
table.compare{width:100%;min-width:760px;border-collapse:collapse}
table.compare th,table.compare td{padding:16px 22px;text-align:left;font-size:15px;vertical-align:top;border-bottom:1px solid var(--line)}
table.compare thead th{background:var(--brand-050);color:var(--brand-700);font-weight:600;font-size:15px;white-space:nowrap}
table.compare tbody th{font-weight:600;color:var(--ink-900);background:var(--bg);white-space:nowrap}
table.compare tbody td{color:var(--ink-600)}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:none}
.table-hint{margin:14px 0 0;font-size:13.5px;color:var(--ink-400)}

/* 卡片区 */
.feed-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:24px;align-items:start}
.feed-card{
  grid-column:span 2;
  display:flex;flex-direction:column;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.feed-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-400)}
.feed-card.is-wide{grid-column:span 4}
.feed-card.is-lower{margin-top:32px}
.feed-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-050)}
.feed-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.feed-card:hover .feed-thumb img{transform:scale(1.04)}
.feed-badge{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--accent-050);color:var(--accent-500);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.feed-badge.is-brand{background:rgba(11,43,34,.72);color:#fff}
.feed-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.feed-body h3{margin-bottom:12px;font-size:19px;line-height:1.45}
.feed-body h3 a{color:var(--ink-900)}
.feed-body h3 a:hover{color:var(--brand-500);text-decoration:none}
.feed-body p{color:var(--ink-600);font-size:15px;margin-bottom:18px}
.feed-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-400)}
.feed-meta .more{color:var(--brand-500);font-weight:600}
.feed-meta .more:hover{text-decoration:none;color:var(--brand-700)}
.feed-list{margin:0 0 16px;display:grid;gap:8px}
.feed-list li{position:relative;padding-left:16px;font-size:14.5px;color:var(--ink-600);line-height:1.7}
.feed-list li::before{content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:2px;background:var(--brand-400)}

/* 订阅表单区 */
.subscribe-panel{
  display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;
  background:var(--brand-050);border-radius:var(--r-l);padding:48px 52px;
  border:1px solid rgba(23,138,99,.16);
}
.subscribe-panel h2{margin-bottom:14px}
.subscribe-panel p{color:var(--ink-600);margin-bottom:0;max-width:560px}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:13px;color:var(--ink-600);margin-bottom:6px}
.form-field input{
  width:100%;height:46px;border-radius:var(--r-s);border:1px solid var(--line);
  background:var(--paper);padding:0 14px;font-size:15px;color:var(--ink-900);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-field input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,138,99,.14)}
.form-field.has-error input{border-color:var(--accent-500)}
.form-field .field-error{display:none;margin-top:6px;font-size:12px;color:var(--accent-500)}
.form-field.has-error .field-error{display:block}
.form-note{font-size:12.5px;color:var(--ink-400);margin:10px 0 0}

/* FAQ */
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-m)!important;
  background:var(--paper);margin-bottom:14px;overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-accordion .accordion-item:hover{border-color:var(--brand-400);box-shadow:var(--sh-1)}
.faq-accordion .accordion-button{
  display:flex;align-items:center;gap:16px;
  width:100%;padding:20px 22px;background:var(--paper);color:var(--ink-900);
  font-size:16px;font-weight:600;line-height:1.55;box-shadow:none!important;border-radius:0!important;
}
.faq-accordion .accordion-button:not(.collapsed){background:var(--brand-050);color:var(--brand-500);box-shadow:inset 3px 0 0 var(--brand-500)!important}
.faq-accordion .accordion-button::after{display:none}
.faq-num{font-size:13px;font-weight:700;color:var(--ink-400);letter-spacing:.04em;font-variant-numeric:tabular-nums;flex:0 0 auto}
.faq-accordion .accordion-button:not(.collapsed) .faq-num{color:var(--brand-500)}
.faq-plus{position:relative;flex:0 0 18px;width:18px;height:18px;margin-left:auto}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--brand-500);border-radius:2px;transition:opacity .22s var(--ease),transform .22s var(--ease)}
.faq-plus::before{left:0;top:8px;width:18px;height:2px}
.faq-plus::after{left:8px;top:0;width:2px;height:18px}
.faq-accordion .accordion-button:not(.collapsed) .faq-plus::after{opacity:0;transform:scaleY(.4)}
.faq-accordion .accordion-body{padding:18px 22px 22px;color:var(--ink-600);font-size:15.5px;background:var(--paper)}
.faq-accordion .accordion-body p:last-child{margin-bottom:0}

/* CTA 带 */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand-900);color:#fff;
  border-radius:var(--r-l);padding:52px 56px;
  margin-top:96px;margin-bottom:72px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:52px 52px;opacity:.7;pointer-events:none;
}
.cta-band .cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap}
.cta-band h2{color:#fff;max-width:20ch;margin-bottom:10px}
.cta-band p{margin:0;color:rgba(255,255,255,.74);max-width:520px}

/* 页脚 */
.site-footer{position:relative;background:var(--brand-900);color:rgba(255,255,255,.72);padding-top:72px;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;opacity:.6;
}
.footer-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:46px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text{color:#fff;font-size:18px}
.footer-brand p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66);margin-bottom:14px;max-width:340px}
.footer-kw{font-size:13px;color:rgba(255,255,255,.44);letter-spacing:.02em}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.02em}
.footer-col a{display:block;padding:6px 0;font-size:14.5px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--brand-500);text-decoration-thickness:2px;text-underline-offset:4px}
.footer-col .contact-line{display:block;padding:6px 0;font-size:14.5px;color:rgba(255,255,255,.72)}
.footer-bottom{
  position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0 88px;font-size:13.5px;color:rgba(255,255,255,.52);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:#fff}

/* 浮动 CTA */
.float-cta{position:fixed;right:26px;bottom:26px;z-index:1040;display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.float-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 22px;border-radius:var(--r-pill);
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 16px 34px -18px rgba(242,101,42,.9);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease),background .2s var(--ease);
}
.float-cta.is-visible .float-btn{opacity:1;transform:translateY(0);pointer-events:auto}
.float-btn:hover{background:#dc541e}
.float-panel{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-2);padding:8px;min-width:172px;
  display:flex;flex-direction:column;
}
.float-panel[hidden]{display:none}
.float-panel a,.float-panel button{
  display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:var(--r-s);
  font-size:14.5px;color:var(--ink-900);text-align:left;width:100%;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.float-panel a:hover,.float-panel button:hover{background:var(--brand-050);color:var(--brand-700);text-decoration:none}
.float-panel i{color:var(--brand-500);width:16px;text-align:center}

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

/* 响应式 */
@media (max-width:1199.98px){
  .section{padding:80px 0}
  .cta-band{padding:46px 40px}
}
@media (max-width:991.98px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .icon-btn{display:none}
  .feed-grid{grid-template-columns:repeat(4,1fr)}
  .feed-card{grid-column:span 2}
  .feed-card.is-wide{grid-column:span 4}
  .feed-card.is-lower{margin-top:0}
  .subscribe-panel{grid-template-columns:1fr;gap:28px;padding:38px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .band-grid{grid-template-columns:1fr;gap:14px}
  .section{padding:64px 0}
  .cta-band{margin-top:64px;margin-bottom:56px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .site-header{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(11,43,34,.92)}
  .page-hero{padding:calc(var(--nav-h) + 42px) 0 48px}
  .hero-cta .btn{flex:1 1 auto;justify-content:center}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .feed-grid{grid-template-columns:1fr;gap:20px}
  .feed-card,.feed-card.is-wide{grid-column:span 1}
  .cta-band{padding:38px 26px;border-radius:var(--r-m)}
  .cta-band .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-bottom{padding-bottom:96px}
  .float-cta{right:16px;bottom:18px}
  .float-btn{padding:0;width:56px;height:56px;border-radius:50%}
  .float-btn .float-label{display:none}
}
@media (max-width:575.98px){
  .hero-meta{gap:16px}
  .hero-meta span{font-size:12.5px}
  .subscribe-panel{padding:30px 20px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:34px}
  .faq-accordion .accordion-button{padding:16px 16px;font-size:15px;gap:10px}
  .faq-accordion .accordion-body{padding:14px 16px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}