/* roulang page: index */
:root{
  --c-primary:#12A06B;
  --c-primary-deep:#0C7C52;
  --c-primary-soft:#E7F5EE;
  --c-primary-onDark:#2FD39B;
  --c-accent:#F0A02A;
  --c-accent-soft:#FDF1DC;
  --c-ink:#0E1F1A;
  --c-text:#16211D;
  --c-text-2:#5A6A64;
  --c-text-3:#8A9994;
  --c-line:#E3E9E5;
  --c-bg:#F7F8F6;
  --c-surface:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(14,31,26,.04), 0 8px 24px -14px rgba(14,31,26,.14);
  --shadow-2:0 12px 32px -12px rgba(14,31,26,.20);
  --shadow-3:0 20px 48px -20px rgba(14,31,26,.28);
  --nav-w:264px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;padding:0;background:var(--c-bg);color:var(--c-text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;}
img{max-width:100%;height:auto;display:block;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1160px;margin:0 auto;padding:0 32px;}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  position:fixed;top:0;left:0;width:var(--nav-w);height:100vh;
  background:var(--c-ink);border-right:1px solid rgba(255,255,255,.08);
  display:flex;flex-direction:column;z-index:60;overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px;padding:24px 20px 0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-primary);flex:none;
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:15px;letter-spacing:.5px;
}
.brand-text strong{display:block;color:#fff;font-size:15px;line-height:1.35;font-weight:600;}
.brand-text em{display:block;color:var(--c-primary-onDark);font-size:13px;font-style:normal;line-height:1.35;}
.brand-note{padding:12px 20px 0;font-size:12px;line-height:1.7;color:var(--c-text-3);}
.nav-group{padding:18px 12px 0;}
.nav-label{padding:0 10px 8px;font-size:11px;letter-spacing:.12em;color:#6B7C76;}
.nav-item{
  position:relative;display:flex;align-items:center;height:44px;padding:0 16px;border-radius:10px;
  font-size:15px;color:#C7D2CD;transition:background-color .2s ease,color .2s ease;
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#E8F0EC;}
.nav-item.active{background:rgba(47,211,155,.14);color:var(--c-primary-onDark);}
.nav-item.active::before{
  content:"";position:absolute;left:4px;top:11px;bottom:11px;width:3px;border-radius:2px;background:var(--c-primary-onDark);
}
.side-foot{margin-top:auto;padding:20px;border-top:1px solid rgba(255,255,255,.08);}
.side-btn{
  display:block;text-align:center;padding:11px 14px;border-radius:var(--r-btn);
  border:1px solid var(--c-primary-onDark);color:var(--c-primary-onDark);font-size:14px;font-weight:600;
}
.side-btn:hover{background:rgba(47,211,155,.14);color:#fff;}
.side-contact{margin-top:14px;font-size:12px;line-height:1.7;color:var(--c-text-3);}

/* ============ 页面容器 ============ */
.page-shell{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column;}
.mobile-bar{display:none;}
.drawer,.drawer-mask{display:none;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-label{
  display:inline-block;padding:4px 12px;border-radius:999px;background:var(--c-primary-soft);
  color:var(--c-primary-deep);font-size:12.5px;letter-spacing:.04em;margin-bottom:14px;
}
.sec-title{font-size:31px;line-height:1.3;font-weight:600;letter-spacing:-.3px;}
.sec-desc{margin-top:14px;font-size:16px;line-height:1.8;color:var(--c-text-2);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .12s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:var(--shadow-2);color:#fff;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;border:1px solid var(--c-line);color:var(--c-primary-deep);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-deep);}
.btn-outline-light{background:transparent;border:1px solid rgba(255,255,255,.45);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}
.btn-on-dark{background:var(--c-primary-onDark);color:var(--c-ink);}
.btn-on-dark:hover{background:#3ee3a9;color:var(--c-ink);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary-deep);font-weight:600;font-size:15px;}
.btn-text:hover{color:var(--c-primary);}
.btn-text .arrow{transition:transform .2s ease;}
.btn-text:hover .arrow{transform:translateX(3px);}

/* ============ Hero ============ */
.hero{
  position:relative;color:#fff;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(14,31,26,.78) 0%,rgba(14,31,26,.88) 60%,rgba(12,124,82,.72) 100%);
}
.hero-inner{position:relative;padding:86px 32px 74px;max-width:1160px;margin:0 auto;}
.hero-tag{
  display:inline-block;padding:5px 14px;border-radius:999px;
  background:rgba(47,211,155,.16);border:1px solid rgba(47,211,155,.4);
  color:var(--c-primary-onDark);font-size:13px;letter-spacing:.04em;
}
.hero h1{
  margin-top:20px;max-width:860px;color:#fff;
  font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.5px;
}
.hero-sub{margin-top:20px;max-width:700px;font-size:19px;line-height:1.75;color:#CFDCD6;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;
  margin-top:52px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14);max-width:780px;
}
.hero-trust strong{
  display:block;font-size:30px;line-height:1.2;font-weight:700;color:var(--c-primary-onDark);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.hero-trust span{display:block;margin-top:6px;font-size:14px;color:#B9C7C1;line-height:1.65;}

/* ============ 价值主张 ============ */
.value-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;}
.value-item{padding:6px 28px;border-left:1px solid var(--c-line);}
.value-item:first-child{border-left:0;padding-left:0;}
.value-icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-primary-soft);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:19px;font-weight:700;
}
.value-item h3{margin-top:16px;font-size:19px;font-weight:600;line-height:1.45;}
.value-item p{margin-top:8px;font-size:15px;line-height:1.8;color:var(--c-text-2);}

/* ============ 功能分组（非等宽） ============ */
.feature-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:20px;}
.f-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.f-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-primary);}
.f-card-lg{grid-column:span 6;padding:0;overflow:hidden;display:flex;flex-direction:column;}
.f-card-lg img{border-radius:0;height:230px;width:100%;object-fit:cover;}
.f-card-lg .f-body{padding:24px 26px 26px;}
.f-card-sm{grid-column:span 3;}
.f-card-xs{grid-column:span 4;}
.f-num{
  display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:26px;padding:0 9px;
  border-radius:999px;background:var(--c-accent-soft);color:#9A6412;font-size:12.5px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.f-card h3{font-size:19px;font-weight:600;line-height:1.45;}
.f-card-lg h3{font-size:22px;}
.f-card p{margin-top:10px;font-size:15px;line-height:1.78;color:var(--c-text-2);}

/* ============ 使用场景 zigzag ============ */
.zigzag{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center;}
.zigzag + .zigzag{margin-top:56px;}
.zigzag.reverse .zz-media{order:2;}
.zz-media img{border-radius:var(--r-img);width:100%;height:320px;object-fit:cover;box-shadow:var(--shadow-1);}
.zz-body h3{font-size:22px;font-weight:600;line-height:1.45;}
.zz-body p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--c-text-2);}
.zz-list{margin-top:18px;display:grid;gap:10px;}
.zz-list li{position:relative;padding-left:22px;font-size:15.5px;line-height:1.8;color:var(--c-text-2);}
.zz-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;
  background:var(--c-primary-soft);border:2px solid var(--c-primary);
}
.zz-body .btn-text{margin-top:20px;}

/* ============ 案例 + 数据带 ============ */
.stat-band{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
  background:var(--c-ink);border-radius:var(--r-card);padding:34px 36px;margin-bottom:40px;
}
.stat-band .st{border-left:1px solid rgba(255,255,255,.10);padding-left:24px;}
.stat-band .st:first-child{border-left:0;padding-left:0;}
.stat-band strong{
  display:block;font-size:32px;font-weight:700;color:var(--c-primary-onDark);
  line-height:1.2;font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat-band span{display:block;margin-top:8px;font-size:14px;color:#A9B7B1;line-height:1.7;}
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.case-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;
  display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-primary);}
.case-card h3{margin-top:14px;font-size:20px;font-weight:600;line-height:1.45;}
.case-card p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--c-text-2);}
.case-nums{display:flex;gap:28px;margin-top:20px;padding-top:18px;border-top:1px dashed var(--c-line);}
.case-nums b{
  display:block;font-size:23px;font-weight:700;color:var(--c-accent);
  line-height:1.25;font-variant-numeric:tabular-nums;
}
.case-nums i{display:block;font-style:normal;font-size:13px;color:var(--c-text-3);margin-top:4px;}
.case-card .btn-text{margin-top:18px;}

/* ============ 价格 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch;}
.price-card{
  position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:30px 26px;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--c-primary);}
.price-card.featured{border:2px solid var(--c-primary);box-shadow:var(--shadow-2);transform:scale(1.02);}
.price-card.featured:hover{transform:scale(1.02) translateY(-3px);}
.price-flag{
  position:absolute;top:-13px;left:26px;padding:3px 12px;border-radius:999px;
  background:var(--c-accent);color:#3A2405;font-size:12.5px;font-weight:700;letter-spacing:.03em;
}
.price-card h3{font-size:20px;font-weight:600;}
.price-sub{margin-top:6px;font-size:14px;color:var(--c-text-3);line-height:1.7;}
.price-amount{margin-top:18px;display:flex;align-items:baseline;gap:6px;}
.price-amount b{font-size:36px;font-weight:700;letter-spacing:-1px;font-variant-numeric:tabular-nums;line-height:1.1;}
.price-amount em{font-style:normal;font-size:14px;color:var(--c-text-3);}
.price-feats{margin-top:22px;display:grid;gap:11px;flex:1;}
.price-feats li{position:relative;padding-left:24px;font-size:15px;line-height:1.75;color:var(--c-text-2);}
.price-feats li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--c-primary);font-weight:700;font-size:14px;
}
.price-card .btn{margin-top:24px;width:100%;}
.price-note{margin-top:22px;font-size:13.5px;color:var(--c-text-3);line-height:1.8;}

/* ============ 最新信息（CMS） ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px;}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-primary);}
.badge{
  display:inline-block;width:fit-content;padding:3px 11px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary-deep);font-size:12.5px;line-height:1.7;
}
.news-title{
  margin-top:14px;font-size:18px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  margin-top:10px;font-size:15px;line-height:1.78;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-text-3);
}
.news-meta .more{color:var(--c-primary-deep);font-weight:600;}
.news-empty{
  grid-column:1/-1;border:1px dashed var(--c-primary);background:var(--c-primary-soft);
  border-radius:var(--r-card);padding:40px 28px;text-align:center;
}
.news-empty p{font-size:15px;line-height:1.8;color:var(--c-text-2);}
.news-empty .btn{margin-top:16px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:12px;margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#C9D8D1;}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--c-primary);border-color:var(--c-line);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-size:16px;font-weight:600;line-height:1.6;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:none;width:24px;height:24px;border-radius:50%;background:var(--c-primary-soft);
  color:var(--c-primary-deep);font-size:15px;font-weight:700;line-height:24px;text-align:center;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--c-ink);border-radius:20px;
  padding:56px 48px;color:#fff;text-align:center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.075) 1px,transparent 1px);
  background-size:18px 18px;pointer-events:none;
}
.cta-inner{position:relative;z-index:1;}
.cta-band h2{font-size:30px;line-height:1.35;font-weight:600;letter-spacing:-.3px;}
.cta-band p{margin:16px auto 0;max-width:640px;font-size:16px;line-height:1.8;color:#B9C7C1;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px;}

/* ============ 页脚 ============ */
.site-foot{background:var(--c-ink);color:#C7D2CD;margin-top:0;}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;
  padding:62px 0 40px;
}
.foot-brand{display:flex;align-items:center;gap:12px;}
.foot-brand .brand-mark{background:var(--c-primary-onDark);color:var(--c-ink);}
.foot-brand strong{color:#fff;font-size:16px;font-weight:600;display:block;line-height:1.4;}
.foot-brand em{font-style:normal;font-size:13px;color:var(--c-primary-onDark);display:block;line-height:1.4;}
.foot-desc{margin-top:16px;font-size:14px;line-height:1.85;color:#93A29C;max-width:340px;}
.foot-col h4{font-size:13px;font-weight:600;letter-spacing:.06em;color:#7E8E88;margin-bottom:16px;}
.foot-col li{margin-bottom:10px;}
.foot-col a{font-size:14.5px;color:#C7D2CD;}
.foot-col a:hover{color:var(--c-primary-onDark);}
.foot-col p{font-size:14px;line-height:1.85;color:#93A29C;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E8E88;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--nav-w:220px;}
  .hero h1{font-size:38px;}
}
@media (max-width:1023px){
  .side-nav{display:none;}
  .page-shell{margin-left:0;padding-top:64px;}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;
    position:fixed;top:0;left:0;right:0;height:64px;padding:0 18px;z-index:70;
    background:#fff;border-bottom:1px solid var(--c-line);
  }
  .m-brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;color:var(--c-text);}
  .m-brand .brand-mark{width:32px;height:32px;border-radius:9px;font-size:13px;background:var(--c-primary);color:#fff;}
  .m-toggle{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;}
  .m-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;}
  .drawer{
    display:block;position:fixed;top:0;left:0;right:0;bottom:0;background:#fff;z-index:90;
    padding:18px 18px 30px;transform:translateX(-100%);transition:transform .26s ease;overflow-y:auto;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line);}
  .drawer-head span{font-size:16px;font-weight:600;}
  .drawer-head button{width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);font-size:20px;line-height:1;color:var(--c-text-2);}
  .drawer-group{margin-top:20px;}
  .drawer-group h4{font-size:12px;letter-spacing:.1em;color:var(--c-text-3);margin-bottom:8px;}
  .drawer-item{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:10px;font-size:15.5px;color:var(--c-text);}
  .drawer-item:hover{background:var(--c-primary-soft);}
  .drawer-item.active{background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:600;}
  .drawer-mask{display:block;position:fixed;inset:0;background:rgba(14,31,26,.45);z-index:80;opacity:0;pointer-events:none;transition:opacity .26s ease;}
  .drawer-mask.show{opacity:1;pointer-events:auto;}
  .section{padding:64px 0;}
  .zigzag{grid-template-columns:minmax(0,1fr);gap:28px;}
  .zigzag.reverse .zz-media{order:0;}
  .zz-media img{height:260px;}
  .feature-grid{grid-template-columns:repeat(6,minmax(0,1fr));}
  .f-card-lg{grid-column:span 6;}
  .f-card-sm{grid-column:span 3;}
  .f-card-xs{grid-column:span 3;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;padding:48px 0 32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .hero-inner{padding:56px 20px 52px;}
  .hero h1{font-size:32px;letter-spacing:-.3px;}
  .hero-sub{font-size:17px;}
  .hero-trust{grid-template-columns:1fr;gap:16px;margin-top:38px;padding-top:22px;}
  .hero-trust strong{font-size:26px;}
  .section{padding:48px 0;}
  .sec-title{font-size:25px;}
  .sec-head{margin-bottom:28px;}
  .value-row{grid-template-columns:1fr;gap:26px;}
  .value-item{border-left:0;padding:0 0 0 16px;border-left:3px solid var(--c-primary-soft);}
  .value-item:first-child{padding-left:16px;}
  .feature-grid{grid-template-columns:1fr;}
  .f-card-lg,.f-card-sm,.f-card-xs{grid-column:1/-1;}
  .f-card-lg img{height:190px;}
  .stat-band{grid-template-columns:1fr;gap:20px;padding:26px 22px;}
  .stat-band .st{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.10);padding-top:16px;}
  .stat-band .st:first-child{border-top:0;padding-top:0;}
  .case-grid{grid-template-columns:1fr;}
  .price-grid{grid-template-columns:1fr;}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-3px);}
  .news-grid{grid-template-columns:1fr;}
  .cta-band{padding:40px 22px;border-radius:16px;}
  .cta-band h2{font-size:24px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:479px){
  .hero h1{font-size:28px;}
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .case-nums{gap:18px;}
}

/* roulang page: article */
:root{
  --c-primary:#12A06B;
  --c-primary-deep:#0C7C52;
  --c-primary-soft:#E7F5EE;
  --c-primary-onDark:#2FD39B;
  --c-accent:#F0A02A;
  --c-accent-soft:#FDF1DC;
  --c-ink:#0E1F1A;
  --c-text:#16211D;
  --c-text-2:#5A6A64;
  --c-text-3:#8A9994;
  --c-line:#E3E9E5;
  --c-bg:#F7F8F6;
  --c-surface:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(14,31,26,.04), 0 8px 24px -14px rgba(14,31,26,.14);
  --sh-2:0 12px 32px -12px rgba(14,31,26,.20);
  --sh-3:0 20px 48px -20px rgba(14,31,26,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
div.container{width:100%;max-width:1160px;margin:0 auto;padding:0 32px}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:264px;height:100%;
  background:var(--c-ink);color:#E8F0EC;
  padding:26px 18px 22px;display:flex;flex-direction:column;
  border-right:1px solid rgba(255,255,255,.08);
  overflow-y:auto;z-index:60;
}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15px;color:#fff;letter-spacing:.2px;font-weight:700}
.brand-text em{font-style:normal;font-size:13px;color:var(--c-primary-onDark)}
.brand-note{font-size:12px;line-height:1.7;color:rgba(232,240,236,.62);margin:0 0 20px}
.nav-group{margin-bottom:20px}
.nav-label{
  font-size:11px;letter-spacing:.16em;color:rgba(232,240,236,.45);
  margin:0 0 8px;padding-left:16px;font-weight:600;
}
.nav-item{
  display:flex;align-items:center;height:44px;padding:0 16px;border-radius:10px;
  font-size:15px;color:rgba(232,240,236,.86);position:relative;
  transition:background .2s ease,color .2s ease;
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#E8F0EC}
.nav-item.active{background:rgba(47,211,155,.14);color:var(--c-primary-onDark);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--c-primary-onDark);
}
.side-foot{
  margin-top:auto;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-direction:column;gap:12px;
}
.side-btn{
  display:block;text-align:center;padding:12px 16px;border-radius:10px;
  border:1px solid var(--c-primary-onDark);color:var(--c-primary-onDark);
  font-size:14px;font-weight:600;transition:background .2s ease,color .2s ease;
}
.side-btn:hover{background:rgba(47,211,155,.14)}
.side-contact{font-size:12px;line-height:1.8;color:rgba(232,240,236,.55);margin:0}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;background:#fff;
  border-bottom:1px solid var(--c-line);align-items:center;justify-content:space-between;
  padding:0 16px;z-index:70;
}
.topbar-brand{display:flex;align-items:center;gap:10px}
.topbar-brand .brand-mark{width:32px;height:32px;font-size:15px;border-radius:9px}
.topbar-text{display:flex;flex-direction:column;line-height:1.2}
.topbar-text strong{font-size:14px;color:var(--c-ink);font-weight:700}
.topbar-text em{font-style:normal;font-size:11.5px;color:var(--c-primary)}
.hamburger{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.hamburger:hover{background:var(--c-primary-soft);border-color:var(--c-primary)}
.hamburger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:min(86vw,320px);background:#fff;z-index:90;
  transform:translateX(-102%);transition:transform .24s ease;padding:18px 16px;overflow-y:auto;
  box-shadow:var(--sh-3);
}
.drawer.open{transform:none}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,31,26,.45);opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;z-index:80;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-head strong{font-size:15px;color:var(--c-ink)}
.drawer-close{
  width:34px;height:34px;border-radius:9px;border:1px solid var(--c-line);background:#fff;
  cursor:pointer;font-size:16px;line-height:1;color:var(--c-text-2);
}
.drawer-close:hover{background:var(--c-primary-soft);border-color:var(--c-primary)}
.drawer .nav-label{color:var(--c-text-3);padding-left:10px}
.drawer .nav-item{height:48px;color:var(--c-text-2);font-size:15px}
.drawer .nav-item:hover{background:var(--c-primary-soft);color:var(--c-primary-deep)}
.drawer .nav-item.active{background:var(--c-primary-soft);color:var(--c-primary-deep)}

/* ---------- 页面骨架 ---------- */
.page-shell{margin-left:264px;display:flex;flex-direction:column;min-height:100vh}
.page-main{flex:1;padding:34px 0 76px}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-text-3);margin-bottom:20px;
}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{color:#C9D3CE}
.breadcrumb .current{color:var(--c-text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:40px;align-items:start}
.article-col{min-width:0}

.article-head{margin-bottom:22px}
.article-head h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.5px;
  margin:14px 0 16px;word-break:break-word;color:var(--c-ink);
}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;background:var(--c-primary-soft);color:var(--c-primary-deep);
}
.badge-accent{background:var(--c-accent-soft);color:#9A6410}
.meta-row{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:14px;color:var(--c-text-3)}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C9D3CE}

.article-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:40px;box-shadow:var(--sh-1);
}
.article-body{max-width:760px}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 18px;font-size:17px;line-height:1.85}
.article-body h2{font-size:24px;line-height:1.4;font-weight:600;margin:40px 0 14px;color:var(--c-ink)}
.article-body h3{font-size:19px;line-height:1.5;font-weight:600;margin:30px 0 12px;color:var(--c-ink)}
.article-body h4{font-size:17px;line-height:1.5;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body li{margin:6px 0;line-height:1.8}
.article-body blockquote{
  margin:24px 0;padding:14px 20px;border-left:3px solid var(--c-primary);
  background:var(--c-primary-soft);border-radius:0 12px 12px 0;color:var(--c-text-2);
}
.article-body img{border-radius:var(--r-img);margin:24px 0;height:auto}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}
.article-body a:hover{color:var(--c-primary-deep)}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th{background:var(--c-primary-soft);font-weight:600;text-align:left}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:8px}

.empty-state{padding:26px 0 8px;text-align:left}
.empty-title{font-size:20px;font-weight:600;margin:0 0 10px;color:var(--c-ink)}
.empty-state p{color:var(--c-text-2);margin:0 0 18px}

/* ---------- 标签与返回入口 ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:30px 0 6px}
.tag-row .tag-label{font-size:13px;color:var(--c-text-3)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;background:#fff;border:1px solid var(--c-line);color:var(--c-text-2);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary-deep);background:var(--c-primary-soft)}

.back-links{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-primary-deep)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary)}
.btn-ondark{background:var(--c-primary-onDark);color:var(--c-ink)}
.btn-ondark:hover{background:#25BE8A;box-shadow:var(--sh-2)}
.btn-block{width:100%}

/* ---------- 相关推荐卡片 ---------- */
.related{margin-top:48px}
.related h2{font-size:24px;font-weight:600;margin:0 0 6px;color:var(--c-ink)}
.related .related-sub{font-size:14.5px;color:var(--c-text-2);margin:0 0 20px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary)}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.card-body{padding:20px 22px 22px}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;margin:10px 0 8px;color:var(--c-ink)}
.card-body p{font-size:15px;line-height:1.75;color:var(--c-text-2);margin:0 0 14px}
.card-meta{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--c-text-3)}
.card-more{font-size:14px;font-weight:600;color:var(--c-primary)}

/* ---------- 右侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:18px;position:sticky;top:24px}
.side-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
}
.side-card-title{font-size:14px;font-weight:600;color:var(--c-ink);margin:0 0 12px}
.side-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.side-links a{
  display:block;padding:9px 10px;border-radius:8px;font-size:14.5px;color:var(--c-text-2);
  transition:background .2s ease,color .2s ease;
}
.side-links a:hover{background:var(--c-primary-soft);color:var(--c-primary-deep)}
.side-card-img img{border-radius:var(--r-img);margin-bottom:12px;aspect-ratio:4/3;object-fit:cover}
.side-card-img p{font-size:13.5px;line-height:1.75;color:var(--c-text-2);margin:0}
.side-cta{background:var(--c-ink);border-radius:var(--r-card);padding:22px 20px}
.side-cta p{font-size:14px;line-height:1.75;color:rgba(232,240,236,.82);margin:0 0 14px}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--c-ink);color:rgba(232,240,236,.78);padding:56px 0 0;margin-top:auto}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:40px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.foot-brand strong{display:block;color:#fff;font-size:15px;font-weight:700;line-height:1.4}
.foot-brand em{font-style:normal;font-size:12.5px;color:var(--c-primary-onDark)}
.foot-desc{font-size:14px;line-height:1.85;color:rgba(232,240,236,.62);margin:0;max-width:360px}
.foot-col h4{font-size:13px;letter-spacing:.08em;color:rgba(232,240,236,.5);margin:0 0 14px;font-weight:600}
.foot-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:14.5px;color:rgba(232,240,236,.8);transition:color .2s ease}
.foot-col a:hover{color:var(--c-primary-onDark);text-decoration:underline;text-underline-offset:4px}
.foot-col p{font-size:14px;line-height:1.7;color:rgba(232,240,236,.68);margin:0 0 8px}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:18px 0 24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13px;color:rgba(232,240,236,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .side-nav{width:220px}
  .page-shell{margin-left:220px}
  .article-head h1{font-size:36px}
  .article-layout{grid-template-columns:minmax(0,1fr) 250px;gap:32px}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .page-shell{margin-left:0;padding-top:64px}
  .topbar{display:flex}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;top:auto}
  .article-head h1{font-size:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:16px}
  div.container{padding:0 18px}
  .page-main{padding:22px 0 56px}
  .article-card{padding:22px 18px}
  .article-head h1{font-size:29px;letter-spacing:-.3px}
  .article-body p{font-size:16px}
  .article-body h2{font-size:21px;margin:32px 0 12px}
  .article-body h3{font-size:18px}
  .related-grid{grid-template-columns:1fr}
  .breadcrumb .current{max-width:220px}
  .foot-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
}
@media (max-width:520px){
  .article-head h1{font-size:25px}
  .back-links .btn{width:100%}
  .foot-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category1 */
:root{
  --c-primary:#12A06B;
  --c-primary-deep:#0C7C52;
  --c-primary-soft:#E7F5EE;
  --c-primary-on-dark:#2FD39B;
  --c-accent:#F0A02A;
  --c-accent-soft:#FDF1DC;
  --c-ink:#0E1F1A;
  --c-text:#16211D;
  --c-text-2:#5A6A64;
  --c-text-3:#8A9994;
  --c-line:#E3E9E5;
  --c-bg:#F7F8F6;
  --c-surface:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,31,26,.04),0 8px 24px -14px rgba(14,31,26,.14);
  --sh-2:0 12px 32px -12px rgba(14,31,26,.20);
  --sh-3:0 20px 48px -20px rgba(14,31,26,.28);
  --nav-w:264px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

.container{width:100%;max-width:1160px;margin:0 auto;padding:0 28px;}

.skip-link{
  position:absolute;left:-9999px;top:0;background:#fff;color:var(--c-primary);
  padding:10px 18px;border-radius:0 0 10px 0;z-index:200;font-size:14px;
}
.skip-link:focus{left:0;}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  position:fixed;left:0;top:0;bottom:0;width:var(--nav-w);
  background:var(--c-ink);
  border-right:1px solid rgba(255,255,255,.08);
  padding:26px 18px 22px;
  display:flex;flex-direction:column;
  overflow-y:auto;z-index:60;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;
  background:var(--c-primary-on-dark);color:var(--c-ink);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:18px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{color:#F2F7F4;font-size:15px;font-weight:700;letter-spacing:.2px;}
.brand-text em{font-style:normal;color:#8FA9A0;font-size:13px;}
.brand-note{
  margin:12px 0 22px;color:#7E968D;font-size:12px;line-height:1.7;
  padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.08);
}
.nav-group{margin-bottom:20px;}
.nav-label{
  font-size:11px;letter-spacing:.14em;color:#6E877E;margin:0 0 8px 16px;text-transform:uppercase;
}
.nav-item{
  display:flex;align-items:center;height:44px;padding:0 16px;
  border-radius:10px;color:#C6D5CF;font-size:15px;
  transition:background .2s ease,color .2s ease;
  position:relative;
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#E8F0EC;}
.nav-item.active{background:rgba(47,211,155,.14);color:var(--c-primary-on-dark);}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--c-primary-on-dark);
}
.side-foot{margin-top:auto;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);}
.side-btn{
  display:block;text-align:center;padding:12px 16px;border-radius:var(--r-btn);
  border:1px solid rgba(47,211,155,.55);color:var(--c-primary-on-dark);
  font-size:14px;transition:background .2s ease,color .2s ease;
}
.side-btn:hover{background:var(--c-primary-on-dark);color:var(--c-ink);}
.side-contact{margin:14px 0 0;font-size:12px;color:#7E968D;line-height:1.7;}

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:80;
  height:64px;background:var(--c-surface);border-bottom:1px solid var(--c-line);
  padding:0 18px;align-items:center;justify-content:space-between;
}
.mobile-brand{display:flex;align-items:center;gap:10px;}
.mobile-brand .brand-mark{background:var(--c-primary);color:#fff;width:32px;height:32px;flex:0 0 32px;font-size:16px;border-radius:9px;}
.mobile-brand span.t{display:flex;flex-direction:column;line-height:1.2;}
.mobile-brand .t strong{font-size:15px;color:var(--c-text);}
.mobile-brand .t em{font-style:normal;font-size:12px;color:var(--c-text-3);}
.menu-btn{
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.menu-btn span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;}
.menu-btn[aria-expanded="true"]{background:var(--c-primary-soft);border-color:var(--c-primary);}

.drawer-mask{
  position:fixed;inset:0;background:rgba(14,31,26,.45);z-index:90;
  opacity:0;transition:opacity .2s ease;
}
.drawer-mask.is-open{opacity:1;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:#fff;z-index:100;
  transform:translateX(100%);transition:transform .22s ease;
  padding:22px 20px 30px;overflow-y:auto;box-shadow:var(--sh-3);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head strong{font-size:16px;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  font-size:18px;line-height:1;color:var(--c-text-2);
}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary);}
.drawer-label{
  font-size:11px;letter-spacing:.14em;color:var(--c-text-3);margin:16px 0 6px;
}
.drawer-item{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:10px;
  color:var(--c-text);font-size:15px;border:1px solid transparent;
}
.drawer-item:hover{background:var(--c-primary-soft);}
.drawer-item.active{background:var(--c-primary-soft);color:var(--c-primary-deep);border-color:rgba(18,160,107,.28);font-weight:600;}

/* ============ 页面主区 ============ */
.page-shell{margin-left:var(--nav-w);min-height:100vh;}
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section.alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}

.breadcrumb{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  font-size:13px;color:var(--c-text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--c-text-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}
.breadcrumb em{font-style:normal;color:#A9B7B1;}

.page-hero{
  position:relative;background-color:var(--c-ink);
  background-image:linear-gradient(rgba(14,31,26,.76),rgba(14,31,26,.80)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:64px 0 56px;color:#fff;
}
.page-hero h1{
  color:#fff;font-size:40px;line-height:1.25;letter-spacing:-.5px;
  max-width:880px;margin:14px 0 16px;
}
.hero-lead{font-size:18px;line-height:1.75;color:#C9D8D2;max-width:760px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:34px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);}
.hero-facts li{display:flex;flex-direction:column;}
.hero-facts strong{font-size:28px;font-weight:700;color:var(--c-primary-on-dark);font-variant-numeric:tabular-nums;}
.hero-facts span{font-size:13px;color:#9DB3AB;}

.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-green{background:var(--c-primary-soft);color:var(--c-primary-deep);}
.badge-accent{background:var(--c-accent-soft);color:#A96A0C;}
.badge-on-dark{background:rgba(47,211,155,.16);color:var(--c-primary-on-dark);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--c-primary-deep);border-color:var(--c-line);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);}
.btn-on-dark{background:var(--c-primary-on-dark);color:var(--c-ink);}
.btn-on-dark:hover{background:#4AE0AE;}
.btn-line-dark{background:transparent;color:#E6F2ED;border-color:rgba(255,255,255,.28);}
.btn-line-dark:hover{border-color:var(--c-primary-on-dark);color:var(--c-primary-on-dark);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary-deep);
  font-size:15px;font-weight:600;transition:gap .2s ease,color .2s ease;
}
.btn-text:hover{gap:10px;color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}

.section-head{max-width:760px;margin-bottom:38px;}
.section-title{font-size:30px;line-height:1.3;font-weight:600;margin-bottom:12px;}
.section-sub{font-size:16px;line-height:1.8;color:var(--c-text-2);margin:0;}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.16em;color:var(--c-primary-deep);
  background:var(--c-primary-soft);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px;font-weight:600;
}

/* ============ 功能矩阵 ============ */
.matrix-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.matrix-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 20px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.matrix-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary);}
.matrix-card .num{
  display:inline-block;font-size:13px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;letter-spacing:.06em;margin-bottom:10px;
}
.matrix-card h3{font-size:17px;line-height:1.5;font-weight:600;margin-bottom:8px;}
.matrix-card p{font-size:14.5px;line-height:1.75;color:var(--c-text-2);margin:0;}

/* ============ 对比表 ============ */
.table-wrap{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.table-scroll{overflow-x:auto;}
table.feature-table{min-width:680px;font-size:15px;}
table.feature-table th{
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  text-align:left;font-size:13.5px;font-weight:700;letter-spacing:.04em;
  padding:15px 22px;border-bottom:1px solid var(--c-line);
}
table.feature-table td{
  padding:16px 22px;border-bottom:1px solid var(--c-line);
  color:var(--c-text-2);line-height:1.7;vertical-align:top;
}
table.feature-table tbody tr:last-child td{border-bottom:none;}
table.feature-table tbody tr:nth-child(even){background:#FBFCFB;}
table.feature-table tbody tr:hover{background:var(--c-primary-soft);}
table.feature-table td:first-child{color:var(--c-text);font-weight:600;width:24%;}
table.feature-table td:last-child{width:22%;color:var(--c-text-3);}

/* ============ 步骤条 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px 22px;position:relative;
}
.step .step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:50%;background:var(--c-accent);color:#fff;
  font-size:14px;font-weight:700;margin-bottom:14px;font-variant-numeric:tabular-nums;
  box-shadow:0 6px 14px -8px rgba(240,160,42,.9);
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14.5px;line-height:1.78;color:var(--c-text-2);margin:0;}

/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.split.media-right .split-media{order:2;}
.split-media img{border-radius:var(--r-img);width:100%;aspect-ratio:16/10;object-fit:cover;box-shadow:var(--sh-1);}
.split-body h2{font-size:30px;line-height:1.3;font-weight:600;margin-bottom:14px;}
.split-body > p{font-size:16px;color:var(--c-text-2);}
.check-list{margin:22px 0 24px;display:flex;flex-direction:column;gap:14px;}
.check-list li{display:flex;gap:12px;font-size:15.5px;line-height:1.75;color:var(--c-text);}
.check-list li::before{
  content:"";flex:0 0 18px;height:18px;margin-top:6px;border-radius:6px;
  background:var(--c-primary-soft);
  box-shadow:inset 0 0 0 1.5px var(--c-primary);
}

/* ============ 分割线列表 ============ */
.line-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;}
.line-item{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:20px 26px;border-bottom:1px solid var(--c-line);transition:background .2s ease;
}
.line-item:last-child{border-bottom:none;}
.line-item:hover{background:var(--c-primary-soft);}
.line-item strong{font-size:16px;font-weight:600;flex:1 1 auto;}
.line-item span{font-size:14.5px;color:var(--c-text-2);flex:0 0 44%;text-align:right;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;
  padding:0 22px;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--c-primary);box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 0;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"＋";font-size:18px;color:var(--c-primary);font-weight:400;line-height:1;
}
.faq-item[open] summary::after{content:"－";}
.faq-item .answer{
  padding:0 0 22px 14px;border-left:3px solid var(--c-primary);
  font-size:15px;line-height:1.8;color:var(--c-text-2);
}

/* ============ CTA ============ */
.cta-band{
  background-color:var(--c-ink);
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:18px 18px;
  border-radius:18px;padding:54px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--sh-3);
}
.cta-band h2{color:#fff;font-size:28px;line-height:1.35;font-weight:600;margin-bottom:10px;max-width:640px;}
.cta-band p{color:#A9BFB7;font-size:15.5px;margin:0;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-foot{background:var(--c-ink);color:#B9CBC4;padding:64px 0 0;margin-top:88px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand .brand-mark{background:var(--c-primary-on-dark);color:var(--c-ink);}
.foot-brand strong{color:#F2F7F4;font-size:15px;display:block;}
.foot-brand em{font-style:normal;color:#8FA9A0;font-size:13px;}
.foot-desc{font-size:14px;line-height:1.8;color:#8FA9A0;margin:0;max-width:340px;}
.foot-col h4{color:#DCE8E3;font-size:13px;letter-spacing:.06em;margin-bottom:14px;font-weight:600;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{font-size:14.5px;color:#B9CBC4;transition:color .2s ease;}
.foot-col a:hover{color:var(--c-primary-on-dark);}
.foot-col p{font-size:14.5px;color:#8FA9A0;margin:0 0 8px;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#7E968D;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--nav-w:220px;}
  .matrix-grid{grid-template-columns:repeat(4,1fr);gap:14px;}
  .page-hero h1{font-size:36px;}
}
@media (max-width:1023px){
  .side-nav{display:none;}
  .mobile-bar{display:flex;}
  .page-shell{margin-left:0;}
  .section{padding:64px 0;}
  .page-hero{padding:52px 0 46px;}
  .page-hero h1{font-size:32px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split.media-right .split-media{order:0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .matrix-grid{grid-template-columns:repeat(2,1fr);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .page-hero h1{font-size:28px;}
  .hero-lead{font-size:16.5px;}
  .section-title{font-size:24px;}
  .split-body h2{font-size:24px;}
  .hero-facts{gap:24px;}
  .line-item{flex-direction:column;align-items:flex-start;gap:6px;}
  .line-item span{flex:1 1 auto;text-align:left;}
  .cta-band{padding:36px 24px;border-radius:16px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .site-foot{margin-top:56px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:479px){
  .page-hero h1{font-size:26px;}
  .matrix-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .foot-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --c-primary:#12A06B;
  --c-primary-deep:#0C7C52;
  --c-primary-soft:#E7F5EE;
  --c-primary-onDark:#2FD39B;
  --c-accent:#F0A02A;
  --c-accent-soft:#FDF1DC;
  --c-ink:#0E1F1A;
  --c-text:#16211D;
  --c-text-2:#5A6A64;
  --c-text-3:#8A9994;
  --c-line:#E3E9E5;
  --c-bg:#F7F8F6;
  --c-surface:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(14,31,26,.04), 0 8px 24px -14px rgba(14,31,26,.14);
  --sh-2:0 12px 32px -12px rgba(14,31,26,.20);
  --sh-3:0 20px 48px -20px rgba(14,31,26,.28);
  --tr:200ms ease;
  --side-w:264px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-primary);color:#fff;padding:10px 16px;z-index:200;border-radius:0 0 10px 0}
.skip-link:focus{left:0}

/* ---------- 侧栏 ---------- */
.side-nav{
  position:fixed;inset:0 auto 0 0;width:var(--side-w);
  background:var(--c-ink);border-right:1px solid rgba(255,255,255,.08);
  padding:26px 20px 24px;display:flex;flex-direction:column;gap:22px;
  z-index:60;overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  background:var(--c-primary);color:#fff;font-size:18px;font-weight:700;
  display:flex;align-items:center;justify-content:center;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.35}
.brand-text strong{color:#fff;font-size:15px;font-weight:600}
.brand-text em{color:var(--c-primary-onDark);font-size:13px;font-style:normal}
.brand-note{
  font-size:12px;line-height:1.7;color:rgba(255,255,255,.5);
  margin-top:-8px;border-top:1px solid rgba(255,255,255,.08);padding-top:14px;
}
.nav-group{display:flex;flex-direction:column;gap:4px}
.nav-label{
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(255,255,255,.38);padding:0 16px;margin-bottom:6px;
}
.nav-item{
  display:flex;align-items:center;height:44px;padding:0 16px;border-radius:10px;
  color:rgba(255,255,255,.76);font-size:15px;position:relative;
  transition:background var(--tr),color var(--tr);
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#E8F0EC}
.nav-item.active{background:rgba(47,211,155,.14);color:var(--c-primary-onDark);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary-onDark);
}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.side-btn{
  display:block;text-align:center;padding:12px 16px;border-radius:var(--r-btn);
  border:1px solid var(--c-primary);color:var(--c-primary-onDark);font-size:14px;font-weight:600;
  transition:background var(--tr),color var(--tr),transform var(--tr);
}
.side-btn:hover{background:var(--c-primary);color:#04211A}
.side-btn:active{transform:translateY(1px)}
.side-contact{font-size:12px;line-height:1.75;color:rgba(255,255,255,.45)}

/* ---------- 移动端顶栏与抽屉 ---------- */
.top-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:70;
  background:#fff;border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;padding:0 18px;
}
.top-brand{display:flex;align-items:center;gap:10px}
.top-brand-text{display:flex;flex-direction:column;line-height:1.3}
.top-brand-text strong{font-size:14px;color:var(--c-text)}
.top-brand-text em{font-size:12px;font-style:normal;color:var(--c-primary)}
.hamburger{width:42px;height:42px;border-radius:10px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;border:1px solid var(--c-line)}
.hamburger span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px}
.drawer-mask{display:none;position:fixed;inset:0;background:rgba(14,31,26,.42);z-index:80}
.drawer-mask.show{display:block}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:#fff;z-index:90;
  transform:translateX(102%);transition:transform 240ms ease;padding:20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);font-size:18px;color:var(--c-text-2)}
.drawer-label{font-size:11px;letter-spacing:.14em;color:var(--c-text-3);margin:18px 0 6px}
.drawer a.drawer-item{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:10px;font-size:15px;color:var(--c-text)}
.drawer a.drawer-item:hover{background:var(--c-primary-soft)}
.drawer a.drawer-item.active{background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:600}
.drawer-btn{display:block;text-align:center;margin-top:20px;padding:13px;border-radius:var(--r-btn);background:var(--c-primary);color:#fff;font-weight:600;font-size:15px}

/* ---------- 布局 ---------- */
.main-wrap{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 28px}
main{flex:1 1 auto}
.section{padding:72px 0}
.section-sm{padding:48px 0}
.section-head{margin-bottom:32px;max-width:720px}
.section-head h2{font-size:30px;line-height:1.3;font-weight:600;letter-spacing:-.3px}
.section-head p{margin-top:12px;color:var(--c-text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  color:var(--c-primary-deep);background:var(--c-primary-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  font-size:13px;color:var(--c-text-3);padding:26px 0 18px;
}
.breadcrumb a{color:var(--c-text-2);transition:color var(--tr)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-line)}
.breadcrumb .current{color:var(--c-text-3)}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;border-radius:18px;overflow:hidden;color:#fff;
  background-image:linear-gradient(rgba(14,31,26,.78),rgba(14,31,26,.72)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:56px 48px;box-shadow:var(--sh-1);
}
.page-hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.5px;max-width:820px}
.page-hero .lead{margin-top:18px;font-size:18px;line-height:1.75;color:rgba(255,255,255,.82);max-width:660px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tag{
  font-size:13px;padding:6px 14px;border-radius:999px;
  background:rgba(47,211,155,.16);color:var(--c-primary-onDark);border:1px solid rgba(47,211,155,.28);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:background var(--tr),color var(--tr),box-shadow var(--tr),transform var(--tr),border-color var(--tr);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-line)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary)}
.btn-dark{background:var(--c-primary-onDark);color:#062018}
.btn-dark:hover{background:#25BE8A;box-shadow:var(--sh-2)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:15px;font-weight:600}
.btn-text .arrow{transition:transform var(--tr)}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.btn-text:hover .arrow{transform:translateX(2px)}

/* ---------- 场景选择标签 ---------- */
.scene-switch{display:flex;flex-wrap:wrap;gap:12px}
.scene-tab{
  padding:11px 22px;border-radius:999px;border:1px solid var(--c-line);background:#fff;
  font-size:14px;color:var(--c-text-2);transition:all var(--tr);
}
.scene-tab:hover{border-color:var(--c-primary);color:var(--c-primary-deep);background:var(--c-primary-soft)}
.scene-tab.active{background:var(--c-ink);color:#fff;border-color:var(--c-ink)}

/* ---------- 概览小卡 ---------- */
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.mini-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary)}
.mini-card .num{
  display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;
  border-radius:10px;background:var(--c-accent-soft);color:#9A5F03;font-weight:700;font-size:14px;
  font-variant-numeric:tabular-nums;
}
.mini-card h3{margin-top:14px;font-size:17px;font-weight:600}
.mini-card p{margin-top:8px;font-size:15px;color:var(--c-text-2);line-height:1.75}

/* ---------- zigzag 场景 ---------- */
.zigzag{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;padding:52px 0}
.zigzag+.zigzag{border-top:1px solid var(--c-line)}
.zigzag.reverse .zz-media{order:2}
.zz-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--c-line)}
.zz-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.zz-body .badge{margin-bottom:14px}
.zz-body h3{font-size:22px;line-height:1.4;font-weight:600}
.zz-body p{margin-top:14px;color:var(--c-text-2);font-size:16px}
.zz-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.zz-list li{position:relative;padding-left:22px;font-size:15px;color:var(--c-text);line-height:1.8}
.zz-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;background:var(--c-primary);
}
.zz-body .btn-text{margin-top:22px}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:25px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:var(--c-primary-soft);color:var(--c-primary-deep);
}
.badge.accent{background:var(--c-accent-soft);color:#9A5F03}

/* ---------- 检查清单 ---------- */
.check-wrap{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:34px;box-shadow:var(--sh-1);
}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 32px;margin-top:22px}
.check-item{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-text-2);line-height:1.75}
.check-item .tick{
  flex:0 0 20px;width:20px;height:20px;border-radius:50%;margin-top:5px;
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;
  overflow:hidden;transition:border-color var(--tr),box-shadow var(--tr);
}
.faq-item:hover{border-color:var(--c-primary)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-size:16px;font-weight:600;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";color:var(--c-primary);font-size:20px;font-weight:400;line-height:1;transition:transform var(--tr);
}
.faq-item[open] summary::after{content:"–"}
.faq-item[open]{box-shadow:var(--sh-1)}
.faq-body{
  padding:0 24px 22px 24px;border-left:3px solid var(--c-primary);
  margin-left:0;font-size:15px;color:var(--c-text-2);line-height:1.8;
}
.faq-body p+p{margin-top:10px}

/* ---------- 推荐卡 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary)}
.card .thumb{overflow:hidden}
.card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 400ms ease}
.card:hover .thumb img{transform:scale(1.03)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5}
.card-body p{font-size:15px;color:var(--c-text-2);line-height:1.75}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}

/* ---------- 底部 CTA ---------- */
.cta-band{
  margin:72px 0 0;background:var(--c-ink);color:#fff;position:relative;
  border-radius:18px;overflow:hidden;padding:56px 48px;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:18px 18px;
}
.cta-band h2{font-size:30px;line-height:1.35;font-weight:600;max-width:620px}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.72);font-size:16px;max-width:560px}
.cta-band .btn{margin-top:28px}

/* ---------- 页脚 ---------- */
.site-foot{
  margin-top:72px;background:var(--c-ink);color:rgba(255,255,255,.7);
  padding:58px 0 26px;border-top:1px solid rgba(255,255,255,.08);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:16px;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.foot-brand strong{display:block;color:#fff;font-size:15px}
.foot-brand em{font-style:normal;font-size:12.5px;color:var(--c-primary-onDark)}
.foot-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6)}
.foot-col h4{font-size:13px;letter-spacing:.05em;color:rgba(255,255,255,.42);font-weight:600;margin-bottom:14px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color var(--tr)}
.foot-col a:hover{color:var(--c-primary-onDark)}
.foot-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin-bottom:8px}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
  .zigzag{gap:36px}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .top-bar{display:flex}
  .main-wrap{margin-left:0;padding-top:64px}
  .page-hero{padding:44px 32px}
  .page-hero h1{font-size:34px}
  .section{padding:56px 0}
  .mini-grid{grid-template-columns:repeat(2,1fr)}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:46px 0}
  .section-sm{padding:34px 0}
  .section-head h2{font-size:24px}
  .page-hero{padding:34px 22px;border-radius:14px}
  .page-hero h1{font-size:28px}
  .page-hero .lead{font-size:16px;margin-top:14px}
  .hero-actions .btn{width:100%}
  .zigzag{grid-template-columns:1fr;gap:22px;padding:38px 0}
  .zigzag.reverse .zz-media{order:0}
  .zz-body h3{font-size:19px}
  .mini-grid{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .check-wrap{padding:24px}
  .cta-band{padding:38px 22px;border-radius:14px}
  .cta-band h2{font-size:24px}
  .cta-band .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-body{padding:0 18px 18px}
}
@media (max-width:479px){
  .page-hero h1{font-size:25px}
  .brand-text strong{font-size:14px}
  .btn{padding:12px 20px;font-size:14.5px}
}

/* roulang page: category3 */
:root{
  --c-primary:#12A06B;
  --c-primary-deep:#0C7C52;
  --c-primary-soft:#E7F5EE;
  --c-primary-onDark:#2FD39B;
  --c-accent:#F0A02A;
  --c-accent-soft:#FDF1DC;
  --c-ink:#0E1F1A;
  --c-text:#16211D;
  --c-text-2:#5A6A64;
  --c-text-3:#8A9994;
  --c-line:#E3E9E5;
  --c-bg:#F7F8F6;
  --c-surface:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(14,31,26,.04),0 8px 24px -14px rgba(14,31,26,.14);
  --sh-2:0 12px 32px -12px rgba(14,31,26,.20);
  --sh-3:0 20px 48px -20px rgba(14,31,26,.28);
  --nav-w:264px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
body.no-scroll{overflow:hidden}

/* ---------- 布局 ---------- */
.page-shell{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 32px}
main{flex:1}

/* ---------- 左侧导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--c-ink);
  border-right:1px solid rgba(255,255,255,.08);
  padding:26px 20px 22px;
  display:flex;flex-direction:column;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 36px;
  background:linear-gradient(145deg,var(--c-primary),var(--c-primary-deep));
  color:#fff;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{color:#F2F7F4;font-size:16px;font-weight:700;letter-spacing:.2px}
.brand-text em{color:var(--c-primary-onDark);font-style:normal;font-size:13px;letter-spacing:.4px}
.brand-note{color:#7E8F89;font-size:12px;line-height:1.6;margin-top:12px;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.08)}
.nav-group{margin-top:22px}
.nav-label{color:#6C7C76;font-size:11px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px;padding-left:16px}
.nav-item{
  display:flex;align-items:center;height:44px;padding:0 16px;border-radius:10px;
  color:#B9C6C1;font-size:15px;position:relative;
  transition:background .2s ease,color .2s ease;
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#E8F0EC}
.nav-item.active{background:rgba(47,211,155,.14);color:var(--c-primary-onDark);font-weight:600}
.nav-item.active::before{content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;border-radius:2px;background:var(--c-primary-onDark)}
.side-foot{margin-top:auto;padding-top:22px;border-top:1px solid rgba(255,255,255,.08)}
.side-btn{
  display:flex;align-items:center;justify-content:center;height:44px;
  border:1px solid rgba(47,211,155,.55);border-radius:var(--r-btn);
  color:var(--c-primary-onDark);font-size:15px;font-weight:600;
  transition:background .2s ease,border-color .2s ease;
}
.side-btn:hover{background:rgba(47,211,155,.12);border-color:var(--c-primary-onDark)}
.side-contact{margin-top:14px;color:#7E8F89;font-size:12px;line-height:1.7}

/* ---------- 移动端顶部条与抽屉 ---------- */
.top-bar{
  display:none;position:sticky;top:0;z-index:60;height:64px;
  background:rgba(255,255,255,.96);backdrop-filter:saturate(160%) blur(6px);
  border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;padding:0 18px;
}
.top-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;color:var(--c-text)}
.top-brand .brand-mark{width:30px;height:30px;flex:0 0 30px;font-size:15px;border-radius:9px}
.menu-btn{
  width:42px;height:42px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.menu-btn:hover{background:var(--c-primary-soft);border-color:var(--c-primary)}
.menu-btn span{display:block;width:18px;height:2px;background:var(--c-text);position:relative}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text)}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(360px,86vw);z-index:80;background:#fff;
  padding:20px 18px;overflow-y:auto;transform:translateX(100%);transition:transform .22s ease;
  box-shadow:var(--sh-3);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:38px;height:38px;border:1px solid var(--c-line);border-radius:10px;background:#fff;cursor:pointer;font-size:18px;line-height:1;color:var(--c-text-2)}
.drawer-close:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer-group{margin-top:22px}
.drawer-label{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--c-text-3);margin-bottom:8px}
.drawer-item{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:10px;color:var(--c-text);font-size:16px}
.drawer-item:hover{background:var(--c-primary-soft);color:var(--c-primary-deep)}
.drawer-item.active{background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:600}
.drawer-mask{position:fixed;inset:0;z-index:70;background:rgba(14,31,26,.45);opacity:0;transition:opacity .2s ease}
.drawer-mask.open{opacity:1}

/* ---------- 内页 Banner ---------- */
.hero-banner{
  position:relative;color:#fff;padding:74px 0 96px;
  background-image:linear-gradient(rgba(14,31,26,.74),rgba(14,31,26,.74)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72)}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:var(--c-primary-onDark);text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:#fff}
.hero-banner h1{
  margin-top:18px;font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.5px;max-width:820px;
}
.hero-banner .lead{margin-top:16px;font-size:19px;line-height:1.75;color:rgba(255,255,255,.82);max-width:680px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
  font-size:13px;color:#EAF3EF;
}

/* ---------- 数据带 ---------- */
.stat-band{margin-top:-52px;position:relative;z-index:5}
.stat-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px 8px;
  display:grid;grid-template-columns:repeat(3,1fr);
}
.stat-item{padding:4px 26px;text-align:left;border-right:1px solid var(--c-line)}
.stat-item:last-child{border-right:0}
.stat-num{font-size:32px;font-weight:700;line-height:1.2;color:var(--c-accent);font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.stat-num small{font-size:16px;font-weight:600;margin-left:2px}
.stat-label{margin-top:6px;font-size:15px;font-weight:600;color:var(--c-text)}
.stat-desc{margin-top:4px;font-size:13px;line-height:1.7;color:var(--c-text-3)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section.alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:720px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary-deep);font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.section-head h2{margin-top:16px;font-size:31px;line-height:1.3;font-weight:600;letter-spacing:-.3px}
.section-head p{margin-top:12px;font-size:16px;line-height:1.8;color:var(--c-text-2)}

/* ---------- 筛选标签组 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.filter-tab{
  height:40px;padding:0 20px;border-radius:999px;border:1px solid var(--c-line);background:#fff;
  color:var(--c-text-2);font-size:14.5px;cursor:pointer;
  transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
}
.filter-tab:hover{border-color:var(--c-primary);color:var(--c-primary-deep);background:var(--c-primary-soft)}
.filter-tab.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.filter-tab.is-active:hover{background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#fff}

/* ---------- 案例卡 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;margin-top:36px}
.case-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary)}
.case-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-soft)}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.case-card:hover .case-thumb img{transform:scale(1.03)}
.case-body{padding:24px 26px 22px;display:flex;flex-direction:column;flex:1}
.badge{
  display:inline-flex;align-items:center;height:25px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary-deep);font-size:12.5px;font-weight:600;
}
.badge.amber{background:var(--c-accent-soft);color:#A96A0B}
.case-body h3{margin-top:14px;font-size:21px;line-height:1.4;font-weight:600}
.case-body p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--c-text-2)}
.case-metrics{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:20px;
  padding-top:18px;border-top:1px dashed var(--c-line);
}
.metric-num{font-size:23px;font-weight:700;color:var(--c-accent);line-height:1.25;font-variant-numeric:tabular-nums}
.metric-label{margin-top:2px;font-size:13px;color:var(--c-text-3)}
.case-foot{margin-top:auto;padding-top:20px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:15px;font-weight:600;
  transition:color .2s ease,gap .2s ease;
}
.text-link::after{content:"→";transition:transform .2s ease}
.text-link:hover{color:var(--c-primary-deep)}
.text-link:hover::after{transform:translateX(2px)}

/* ---------- 文字墙 ---------- */
.wall{margin-top:34px;display:flex;flex-wrap:wrap;gap:12px}
.wall-item{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-text-2);font-size:14.5px;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.wall-item:hover{border-color:var(--c-primary);color:var(--c-primary-deep);background:var(--c-primary-soft)}
.wall-dot{width:7px;height:7px;border-radius:50%;background:var(--c-primary)}
.wall-note{margin-top:16px;font-size:14px;color:var(--c-text-3)}

/* ---------- 反馈来源两栏 ---------- */
.note-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;margin-top:36px;align-items:start}
.note-list{display:flex;flex-direction:column;gap:0;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.note-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 24px;border-bottom:1px solid var(--c-line);transition:background .2s ease}
.note-row:last-child{border-bottom:0}
.note-row:hover{background:var(--c-primary-soft)}
.note-row .nr-title{font-size:16px;font-weight:600}
.note-row .nr-time{font-size:13px;color:var(--c-text-3);white-space:nowrap;font-variant-numeric:tabular-nums}
.note-side{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1)}
.note-side h3{font-size:20px;font-weight:600}
.note-side ul{margin-top:16px;display:flex;flex-direction:column;gap:14px}
.note-side li{position:relative;padding-left:22px;font-size:15px;line-height:1.75;color:var(--c-text-2)}
.note-side li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--c-primary)}
.note-side .side-btn-line{
  margin-top:22px;display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 26px;
  border-radius:var(--r-btn);background:var(--c-primary);color:#fff;font-weight:600;font-size:15px;
  transition:background .2s ease,box-shadow .2s ease,transform .2s ease;
}
.note-side .side-btn-line:hover{background:var(--c-primary-deep);box-shadow:var(--sh-2)}
.note-side .side-btn-line:active{transform:translateY(1px)}

/* ---------- FAQ ---------- */
.faq-list{margin-top:32px;display:flex;flex-direction:column;gap:12px;max-width:860px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item:hover{border-color:var(--c-primary)}
.faq-item[open]{box-shadow:var(--sh-1);border-color:var(--c-primary)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-size:16.5px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;font-weight:400;color:var(--c-primary);flex:0 0 auto}
.faq-item[open] summary::after{content:"–"}
.faq-answer{padding:0 24px 22px 27px;border-left:3px solid var(--c-primary);margin-left:0;font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--c-ink);color:#fff;padding:76px 0;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,211,155,.22),transparent 65%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{font-size:30px;line-height:1.35;font-weight:600;max-width:640px}
.cta-inner p{margin-top:12px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.72);max-width:560px}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;height:50px;padding:0 30px;
  border-radius:var(--r-btn);background:var(--c-primary-onDark);color:var(--c-ink);
  font-size:16px;font-weight:700;white-space:nowrap;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary:hover{background:#5BE3B4;box-shadow:0 14px 30px -14px rgba(47,211,155,.7)}
.btn-primary:active{transform:translateY(1px)}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--c-ink);color:#B9C6C1;padding:64px 0 26px;border-top:1px solid rgba(255,255,255,.08)}
.foot-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr 1fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:12px}
.foot-brand strong{display:block;color:#F2F7F4;font-size:16px}
.foot-brand em{font-style:normal;color:var(--c-primary-onDark);font-size:13px}
.foot-desc{margin-top:16px;font-size:14px;line-height:1.8;color:#8A9994;max-width:360px}
.foot-col h4{color:#8A9994;font-size:13px;font-weight:600;letter-spacing:.06em;margin-bottom:14px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a,.foot-col p{font-size:14.5px;color:#B9C6C1;transition:color .2s ease}
.foot-col a:hover{color:var(--c-primary-onDark)}
.foot-col p{margin-bottom:8px;line-height:1.7}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E8F89;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--nav-w:220px}
  .container{padding:0 26px}
  .hero-banner h1{font-size:38px}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .page-shell{margin-left:0}
  .top-bar{display:flex}
  .hero-banner{padding:52px 0 80px}
  .hero-banner h1{font-size:33px}
  .hero-banner .lead{font-size:17.5px}
  .section{padding:64px 0}
  .section-head h2{font-size:27px}
  .stat-card{grid-template-columns:1fr;padding:12px 8px}
  .stat-item{border-right:0;border-bottom:1px solid var(--c-line);padding:16px 22px}
  .stat-item:last-child{border-bottom:0}
  .case-grid{grid-template-columns:1fr;gap:20px}
  .note-grid{grid-template-columns:1fr;gap:24px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .hero-banner{padding:40px 0 74px}
  .hero-banner h1{font-size:29px}
  .section{padding:48px 0}
  .section-head h2{font-size:24px}
  .stat-band{margin-top:-44px}
  .stat-num{font-size:27px}
  .case-body{padding:20px}
  .cfa-inner{gap:24px}
  .cta-band{padding:56px 0}
  .cta-inner h2{font-size:24px}
  .btn-primary{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .note-side{padding:22px}
}
@media (max-width:479px){
  .hero-banner h1{font-size:26px}
  .filter-tab{height:38px;padding:0 16px;font-size:14px}
  .note-row{flex-direction:column;align-items:flex-start;gap:4px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category4 */
:root{
  --c-primary:#12A06B;
  --c-primary-deep:#0C7C52;
  --c-primary-soft:#E7F5EE;
  --c-primary-onDark:#2FD39B;
  --c-accent:#F0A02A;
  --c-accent-soft:#FDF1DC;
  --c-ink:#0E1F1A;
  --c-text:#16211D;
  --c-text-2:#5A6A64;
  --c-text-3:#8A9994;
  --c-line:#E3E9E5;
  --c-bg:#F7F8F6;
  --c-surface:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,31,26,.04), 0 8px 24px -14px rgba(14,31,26,.14);
  --sh-2:0 12px 32px -12px rgba(14,31,26,.20);
  --sh-3:0 20px 48px -20px rgba(14,31,26,.28);
  --side-w:264px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--c-text);letter-spacing:-.2px;}
h1{font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.5px;}
h2{font-size:31px;line-height:1.3;}
h3{font-size:22px;line-height:1.4;}
h4{font-size:17px;line-height:1.5;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;
}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 28px;}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;
  background:var(--c-ink);border-right:1px solid rgba(255,255,255,.08);
  padding:26px 18px 22px;display:flex;flex-direction:column;gap:22px;
  overflow-y:auto;z-index:60;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:36px;height:36px;flex:none;border-radius:10px;
  background:var(--c-primary);color:#fff;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{color:#F2F7F4;font-size:16px;font-weight:600;letter-spacing:.2px;}
.brand-text em{color:var(--c-primary-onDark);font-style:normal;font-size:13px;letter-spacing:.6px;}
.brand-note{color:var(--c-text-3);font-size:12px;line-height:1.6;margin:0;}
.nav-group{display:flex;flex-direction:column;gap:6px;}
.nav-label{
  font-size:11px;letter-spacing:.16em;color:#6C7B75;margin:0 0 4px;
  text-transform:uppercase;font-weight:600;
}
.nav-item{
  position:relative;display:flex;align-items:center;height:44px;
  padding:0 16px;border-radius:10px;color:#C6D2CD;font-size:15px;
  transition:background .19s ease,color .19s ease;
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#E8F0EC;}
.nav-item.active{background:rgba(47,211,155,.14);color:var(--c-primary-onDark);font-weight:600;}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary-onDark);
}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}
.side-btn{
  display:flex;align-items:center;justify-content:center;height:44px;
  border:1px solid var(--c-primary-onDark);border-radius:var(--r-btn);
  color:var(--c-primary-onDark);font-size:15px;font-weight:600;
  transition:background .19s ease,color .19s ease,transform .19s ease;
}
.side-btn:hover{background:var(--c-primary-onDark);color:var(--c-ink);}
.side-btn:active{transform:translateY(1px);}
.side-contact{font-size:12px;line-height:1.7;color:#7E8C87;margin:0;}

/* ============ 移动端顶部栏与抽屉 ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:70;height:64px;
  background:#fff;border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;padding:0 18px;
}
.topbar .brand-text strong{color:var(--c-text);}
.topbar .brand-text em{color:var(--c-primary);}
.burger{
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;display:flex;flex-direction:column;gap:5px;align-items:center;justify-content:center;
  cursor:pointer;transition:border-color .19s ease,background .19s ease;
}
.burger:hover{border-color:var(--c-primary);background:var(--c-primary-soft);}
.burger span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;}
.drawer{
  position:fixed;inset:0;background:#fff;z-index:90;display:none;
  flex-direction:column;padding:20px 18px 28px;overflow-y:auto;
}
.drawer.open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  font-size:20px;line-height:1;cursor:pointer;color:var(--c-text);
}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary);}
.drawer .nav-item{height:48px;color:var(--c-text);font-size:16px;}
.drawer .nav-item:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);}
.drawer .nav-item.active{background:var(--c-primary-soft);color:var(--c-primary-deep);}
.drawer .nav-item.active::before{background:var(--c-primary);}
.drawer .nav-label{color:var(--c-text-3);}
.drawer .side-btn{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.drawer .side-btn:hover{background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#fff;}
.drawer .side-contact{color:var(--c-text-2);}
.drawer-mask{position:fixed;inset:0;background:rgba(14,31,26,.4);z-index:80;display:none;}
.drawer-mask.open{display:block;}

/* ============ 主内容骨架 ============ */
.shell{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;}
main{flex:1;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-primary-deep);background:var(--c-primary-soft);
  border-radius:var(--r-pill);padding:4px 14px;margin-bottom:16px;
}
.section-head p{color:var(--c-text-2);font-size:17px;margin-top:12px;}

.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(240,247,243,.72);}
.crumb a{color:rgba(240,247,243,.72);}
.crumb a:hover{color:var(--c-primary-onDark);}
.crumb .sep{opacity:.55;}
.crumb .now{color:#fff;}

/* ============ Hero ============ */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(120deg, rgba(14,31,26,.92) 0%, rgba(14,31,26,.78) 55%, rgba(12,124,82,.72) 100%), url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-inner{padding:64px 0 76px;max-width:820px;}
.hero h1{color:#fff;margin:22px 0 18px;max-width:16em;}
.hero h1 .hl{color:var(--c-primary-onDark);}
.hero-lead{font-size:19px;line-height:1.75;color:rgba(233,242,237,.88);max-width:640px;margin-bottom:32px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.hero-tag{
  font-size:13px;padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);color:#E5F1EA;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--r-btn);font-size:16px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background .19s ease,color .19s ease,border-color .19s ease,transform .19s ease,box-shadow .19s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.34);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6);}
.btn-soft{background:#fff;border-color:var(--c-line);color:var(--c-primary-deep);}
.btn-soft:hover{background:var(--c-primary-soft);border-color:var(--c-primary);}
.btn-onDark{background:var(--c-primary-onDark);color:var(--c-ink);}
.btn-onDark:hover{background:#25BC89;color:var(--c-ink);box-shadow:var(--sh-2);}
.btn-line{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary-deep);
  font-size:15px;font-weight:600;
}
.btn-line:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}
.btn-line .arrow{transition:transform .19s ease;}
.btn-line:hover .arrow{transform:translateX(2px);}

.hero-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:rgba(255,255,255,.10);border-top:1px solid rgba(255,255,255,.10);
}
.hero-strip div{padding:22px 26px;background:rgba(14,31,26,.42);}
.hero-strip strong{display:block;font-size:24px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;}
.hero-strip span{font-size:13px;color:rgba(220,233,227,.78);}

/* ============ 价格卡 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px 26px 26px;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary);}
.price-card.featured{border:2px solid var(--c-primary);transform:scale(1.02);box-shadow:var(--sh-2);}
.price-card.featured:hover{transform:scale(1.02) translateY(-2px);box-shadow:var(--sh-3);}
.price-card .ribbon{
  position:absolute;top:-13px;left:26px;background:var(--c-accent);color:#4A2E00;
  font-size:12px;font-weight:700;padding:4px 14px;border-radius:var(--r-pill);
  letter-spacing:.04em;
}
.price-name{font-size:20px;font-weight:600;margin-bottom:6px;}
.price-desc{font-size:14px;line-height:1.7;color:var(--c-text-2);min-height:48px;}
.price-amount{display:flex;align-items:baseline;gap:6px;margin:18px 0 6px;}
.price-amount .num{font-size:40px;font-weight:700;color:var(--c-ink);font-variant-numeric:tabular-nums;letter-spacing:-1px;}
.price-card.featured .price-amount .num{color:var(--c-primary-deep);}
.price-amount .unit{font-size:15px;color:var(--c-text-2);}
.price-cycle{font-size:13px;color:var(--c-text-3);margin-bottom:22px;}
.price-list{display:flex;flex-direction:column;gap:12px;border-top:1px solid var(--c-line);padding-top:22px;margin-bottom:26px;}
.price-list li{position:relative;padding-left:26px;font-size:15px;line-height:1.7;color:var(--c-text-2);}
.price-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:50%;
  background:var(--c-primary-soft);border:1.5px solid var(--c-primary);
}
.price-card .btn{margin-top:auto;width:100%;}
.bill-note{font-size:13px;color:var(--c-text-3);margin-top:20px;line-height:1.7;}

/* ============ 说明两栏 / 图文 ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start;}
.plain-list{display:flex;flex-direction:column;gap:22px;}
.plain-list .item{display:flex;gap:16px;}
.num-tag{
  flex:none;width:32px;height:32px;border-radius:50%;background:var(--c-accent-soft);
  color:#8A5400;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.plain-list h4{margin-bottom:4px;}
.plain-list p{font-size:15px;color:var(--c-text-2);line-height:1.75;margin:0;}
.figure{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-1);}
.figure img{width:100%;height:340px;object-fit:cover;border-radius:var(--r-img);}
.figure figcaption{font-size:13px;color:var(--c-text-3);padding:12px 16px;background:#fff;border-top:1px solid var(--c-line);}

/* ============ 对比表 ============ */
.table-wrap{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow-x:auto;
}
table{width:100%;border-collapse:collapse;min-width:680px;}
caption{caption-side:top;text-align:left;padding:20px 24px 4px;font-size:13px;color:var(--c-text-3);}
th,td{padding:16px 22px;text-align:left;font-size:15px;border-bottom:1px solid var(--c-line);}
thead th{background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:600;font-size:14px;letter-spacing:.02em;}
tbody tr:nth-child(even){background:#FAFCFA;}
tbody tr:hover{background:var(--c-primary-soft);}
tbody tr:last-child td{border-bottom:none;}
td:first-child{font-weight:600;color:var(--c-text);}
td .yes{color:var(--c-primary-deep);font-weight:600;}
td .no{color:var(--c-text-3);}

/* ============ 表单区 ============ */
.form-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:start;}
.form-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--c-text);}
.field label .req{color:var(--c-accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  font-size:15px;transition:border-color .19s ease,box-shadow .19s ease;
}
.field textarea{height:110px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#C8D6D0;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(18,160,107,.16);
}
.field .hint{font-size:13px;color:var(--c-text-3);line-height:1.65;}
.form-actions{display:flex;align-items:center;gap:16px;margin-top:26px;flex-wrap:wrap;}
.form-actions .btn{width:200px;}
.form-actions .tip{font-size:13px;color:var(--c-text-3);}
.form-error{
  display:none;font-size:13px;color:#B06A00;background:var(--c-accent-soft);
  border-radius:8px;padding:10px 14px;line-height:1.7;
}
.form-error.show{display:block;}
.aside-note{
  background:var(--c-ink);color:#DCE9E3;border-radius:var(--r-card);padding:30px 28px;
  box-shadow:var(--sh-1);
}
.aside-note h3{color:#fff;font-size:20px;margin-bottom:18px;}
.aside-note ol{display:flex;flex-direction:column;gap:18px;}
.aside-note li{position:relative;padding-left:34px;font-size:15px;line-height:1.75;color:#C4D3CD;}
.aside-note li strong{display:block;color:#fff;font-size:15px;margin-bottom:2px;}
.aside-note li::before{
  content:attr(data-n);position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:50%;
  background:rgba(47,211,155,.16);border:1px solid rgba(47,211,155,.5);
  color:var(--c-primary-onDark);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.aside-note .mail{
  margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;color:#93A49E;
}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-img);
  overflow:hidden;transition:border-color .19s ease,box-shadow .19s ease;
}
.faq-item:hover{border-color:#CBD9D3;box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--c-primary);
  transition:transform .19s ease;
}
.faq-item[open] summary::after{content:"–";}
.faq-item[open]{border-left:3px solid var(--c-primary);}
.faq-item .ans{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--c-text-2);}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background-color:var(--c-ink);
  background-image:radial-gradient(rgba(255,255,255,.07) 1px, transparent 1px);
  background-size:18px 18px;
}
.cta-inner{padding:72px 0;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;max-width:20em;}
.cta-inner p{color:rgba(212,226,219,.82);font-size:16px;margin-top:12px;max-width:38em;}

/* ============ 页脚 ============ */
.site-foot{background:var(--c-ink);color:#B9C8C2;padding:68px 0 0;font-size:15px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.foot-brand strong{display:block;color:#fff;font-size:16px;font-weight:600;}
.foot-brand em{display:block;font-style:normal;font-size:13px;color:var(--c-primary-onDark);}
.foot-desc{font-size:14px;line-height:1.8;color:#93A49E;margin:0;}
.foot-col h4{font-size:13px;letter-spacing:.08em;color:#7E8C87;margin-bottom:16px;font-weight:600;}
.foot-col ul{display:flex;flex-direction:column;gap:12px;}
.foot-col a{font-size:15px;color:#C6D2CD;transition:color .19s ease;}
.foot-col a:hover{color:var(--c-primary-onDark);}
.foot-col p{font-size:14px;color:#93A49E;line-height:1.8;margin-bottom:8px;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0 30px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E8C87;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--side-w:220px;}
  .side-nav{padding:22px 14px 20px;}
  h1{font-size:38px;}
}
@media (max-width:1023px){
  .side-nav{display:none;}
  .shell{margin-left:0;}
  .topbar{display:flex;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .hero-inner{padding:48px 0 56px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .form-wrap{grid-template-columns:1fr;gap:28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .price-grid{grid-template-columns:1fr;gap:20px;}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-2px);}
  .hero-strip{grid-template-columns:1fr;}
  .hero-strip div{padding:16px 22px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  h3{font-size:20px;}
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .section-tight{padding:40px 0;}
  .hero-lead{font-size:17px;}
  .figure img{height:220px;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .cta-inner{padding:56px 0;}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .site-foot{padding-top:52px;}
}
@media (max-width:480px){
  h1{font-size:28px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .form-actions .btn{width:100%;}
  .btn{padding:0 20px;}
  .price-amount .num{font-size:34px;}
}