/* roulang page: index */
:root{
  --ink:#101013;
  --lime:#C8F169;
  --bg:#F4F1EA;
  --card:#FBF9F5;
  --sand:#EAE5DB;
  --line:#E3DED4;
  --tx:#101013;
  --tx2:#55534E;
  --tx3:#8A867E;
  --inv:#F4F1EA;
  --ok:#6F9E1F;
  --err:#D9482B;
  --warn:#D9982E;
  --dis:#C9C5BC;
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --pill:999px;
  --shadow:0 1px 2px rgba(16,16,19,.05);
  --maxw:1240px;
  --gap:24px;
  --sec:112px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--tx);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.75;
  letter-spacing:0;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{letter-spacing:-.01em;line-height:1.15;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-family:Inter,system-ui,-apple-system,"PingFang SC",sans-serif;}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section--tight{padding:80px 0;}
.bg-sand{background:var(--sand);}
.bg-ink{background:var(--ink);color:var(--inv);}
.bg-card{background:var(--card);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--tx3);font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none;}
.sec-head h2{font-size:clamp(26px,3.4vw,44px);font-weight:700;}
.sec-head p{margin-top:16px;color:var(--tx2);font-size:16px;}
.bg-ink .sec-head p{color:#B9B6AE;}
.bg-ink .eyebrow{color:#8F8C84;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 26px;border-radius:var(--pill);
  font-size:15px;font-weight:600;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn i{font-size:13px;transition:transform .2s ease;}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:var(--ink);color:var(--inv);}
.btn-primary:hover{background:#22222A;}
.btn-lime{background:var(--lime);color:var(--ink);}
.btn-lime:hover{background:#D6F78A;}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:var(--inv);}
.btn-inv{background:var(--inv);color:var(--ink);}
.btn-inv:hover{background:#fff;}
.btn-ghost-inv{border-color:rgba(244,241,234,.4);color:var(--inv);}
.btn-ghost-inv:hover{border-color:var(--lime);color:var(--lime);}
.btn-block{width:100%;border-radius:12px;min-height:52px;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;border-bottom:2px solid transparent;padding-bottom:2px;}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover{border-bottom-color:var(--lime);}
.link-arrow:hover i{transform:translateX(4px);}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--pill);font-size:12px;font-weight:700;line-height:1.4;
}
.badge-lime{background:var(--lime);color:var(--ink);}
.badge-sand{background:var(--sand);color:var(--tx2);font-weight:600;}

/* 顶部公告条 */
.topbar{
  background:var(--ink);color:var(--lime);font-size:14px;min-height:40px;
  display:flex;align-items:center;position:relative;z-index:60;
}
.topbar .container{display:flex;align-items:center;justify-content:center;gap:14px;padding-top:6px;padding-bottom:6px;}
.topbar strong{color:#fff;font-weight:700;}
.topbar .tb-close{
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;color:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;
  transition:background .2s ease;
}
.topbar .tb-close:hover{background:rgba(200,241,105,.16);}
.topbar.is-hidden{display:none;}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(244,241,234,.92);
  backdrop-filter:blur(10px);transition:height .22s ease,box-shadow .22s ease,border-color .22s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{box-shadow:0 1px 0 var(--line);border-bottom-color:var(--line);}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  height:72px;transition:height .22s ease;
}
.site-header.is-stuck .nav-wrap{height:60px;}
.nav-left,.nav-right{display:flex;align-items:center;gap:26px;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;font-size:15px;color:var(--tx2);padding:8px 0;min-height:44px;
  display:inline-flex;align-items:center;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:10px;width:100%;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.brand{
  font-size:21px;font-weight:800;letter-spacing:.04em;color:var(--ink);
  padding:0 18px;white-space:nowrap;
}
.brand span{color:var(--tx3);font-weight:700;}
.nav-cta{padding:0 20px;min-height:44px;font-size:14px;}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;font-size:17px;color:var(--ink);background:var(--card);
}
.nav-mobile-only{display:none;}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0 0 0 auto;width:86vw;max-width:420px;background:var(--card);
  transform:translateX(102%);transition:transform .28s ease;z-index:80;
  display:flex;flex-direction:column;padding:22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head .brand{padding:0;font-size:19px;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:16px;}
.drawer nav{display:flex;flex-direction:column;}
.drawer nav a{
  font-size:18px;padding:14px 4px;border-bottom:1px solid var(--line);color:var(--tx2);
  display:flex;align-items:center;justify-content:space-between;min-height:52px;
}
.drawer nav a.active{color:var(--ink);font-weight:700;}
.drawer-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px;}
.drawer-foot .tel{font-size:14px;color:var(--tx2);}
.scrim{position:fixed;inset:0;background:rgba(16,16,19,.45);opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:70;}
.scrim.is-open{opacity:1;pointer-events:auto;}
body.no-scroll{overflow:hidden;}

/* Hero */
.hero{padding:72px 0 96px;position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.hero h1{font-size:clamp(38px,6.2vw,72px);font-weight:800;line-height:1.05;}
.hero h1 .mark{
  background:linear-gradient(transparent 62%,var(--lime) 62%);
  padding:0 4px;
}
.hero-sub{margin-top:22px;font-size:18px;color:var(--tx2);max-width:520px;}
.hero-actions{margin-top:34px;display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
.hero-metrics{
  margin-top:52px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  border-top:1px solid var(--line);padding-top:26px;max-width:560px;
}
.metric b{display:block;font-size:30px;font-weight:800;line-height:1.1;}
.metric span{display:block;margin-top:6px;font-size:13px;color:var(--tx3);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);
  background:var(--sand);box-shadow:var(--shadow);
}
.hero-tag{
  position:absolute;left:-14px;bottom:26px;background:var(--lime);color:var(--ink);
  border-radius:var(--pill);padding:10px 20px;font-size:14px;font-weight:800;
  box-shadow:0 4px 14px rgba(16,16,19,.14);
}
.hero-note{
  position:absolute;right:-12px;top:22px;background:var(--card);border:1px solid var(--line);
  border-radius:12px;padding:10px 16px;font-size:13px;color:var(--tx2);box-shadow:var(--shadow);
}

/* 服务卡 */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap);}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--lime);box-shadow:var(--shadow);}
.card-media{border-radius:var(--r-img);overflow:hidden;background:var(--sand);margin-bottom:18px;}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card h3{font-size:20px;margin-bottom:10px;}
.card p{color:var(--tx2);font-size:15px;}
.card-tags{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap;}

/* 优惠阶梯 */
.ladder{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;position:relative;}
.ladder::before{
  content:"";position:absolute;left:6%;right:6%;top:34px;height:1px;
  border-top:1px dashed var(--line);z-index:0;
}
.tier{position:relative;z-index:1;}
.tier-dot{
  width:38px;height:38px;border-radius:50%;background:var(--bg);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;margin-bottom:18px;
}
.tier-card{
  border-radius:var(--r-card);padding:28px;border:1px solid var(--line);background:var(--sand);
  height:100%;display:flex;flex-direction:column;
}
.tier-card .tier-name{font-size:20px;font-weight:700;}
.tier-card .tier-for{font-size:13px;color:var(--tx2);margin-top:6px;min-height:22px;}
.price-block{margin:22px 0 6px;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;}
.price-old{font-size:14px;color:var(--tx3);text-decoration:line-through;}
.price-now{font-size:clamp(28px,3vw,40px);font-weight:800;line-height:1;}
.price-unit{font-size:14px;color:var(--tx2);}
.tier-list{margin:20px 0 26px;display:flex;flex-direction:column;gap:11px;font-size:15px;color:var(--tx2);}
.tier-list li{display:flex;gap:10px;align-items:flex-start;}
.tier-list i{color:var(--ink);font-size:12px;margin-top:7px;}
.tier-card .btn{margin-top:auto;}
.tier-featured{background:#fff;border:2px solid var(--lime);position:relative;}
.tier-featured .badge{position:absolute;top:-13px;left:28px;}
.tier-dark{background:var(--ink);border-color:var(--ink);color:var(--inv);}
.tier-dark .tier-for,.tier-dark .tier-list,.tier-dark .price-unit{color:#B9B6AE;}
.tier-dark .price-old{color:#7C7A73;}
.tier-dark .price-now{color:var(--lime);}
.tier-dark .tier-list i{color:var(--lime);}

/* 对比 */
.compare-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);}
table.compare{width:100%;border-collapse:collapse;min-width:760px;}
table.compare th,table.compare td{padding:16px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);}
table.compare thead th{
  background:var(--ink);color:var(--inv);font-weight:700;font-size:14px;position:sticky;top:0;
}
table.compare thead th .badge{margin-bottom:6px;}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td:first-child{color:var(--tx2);font-weight:600;}
table.compare .col-rec{background:rgba(200,241,105,.16);}
table.compare tbody tr:hover td{background:#F7F5EF;}
table.compare tbody tr:hover td.col-rec{background:rgba(200,241,105,.24);}
.check{color:var(--ink);font-size:15px;}
.check.on{color:var(--ok);}
.dash{color:var(--dis);}
.compare-acc{display:none;}

/* 限时入口 */
.countdown-sec{
  position:relative;background:var(--ink);color:var(--inv);border-radius:var(--r-card);
  padding:56px;overflow:hidden;
}
.countdown-sec::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.14;pointer-events:none;
}
.countdown-sec > *{position:relative;z-index:1;}
.cd-grid{display:grid;grid-template-columns:1.1fr 1fr auto;gap:44px;align-items:center;}
.cd-label{font-size:13px;color:#8F8C84;letter-spacing:.1em;margin-bottom:16px;}
.cd-boxes{display:flex;gap:12px;}
.cd-box{
  background:rgba(244,241,234,.07);border:1px solid rgba(244,241,234,.14);
  border-radius:12px;min-width:76px;padding:12px 8px;text-align:center;
}
.cd-box b{display:block;font-size:30px;font-weight:800;color:var(--lime);line-height:1;overflow:hidden;}
.cd-box span{display:block;margin-top:8px;font-size:12px;color:#8F8C84;}
.progress{height:8px;border-radius:var(--pill);background:rgba(244,241,234,.14);margin-top:12px;overflow:hidden;}
.progress i{display:block;height:100%;background:var(--lime);border-radius:var(--pill);width:68%;}
.progress-meta{display:flex;justify-content:space-between;font-size:13px;color:#B9B6AE;margin-top:10px;}
.cd-title{font-size:20px;font-weight:700;margin-bottom:8px;}

/* 表单 */
.form-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.point-list{display:flex;flex-direction:column;gap:14px;margin-top:26px;}
.point-list li{display:flex;gap:12px;font-size:15px;color:var(--tx2);}
.point-list i{width:8px;height:8px;background:var(--lime);display:block;margin-top:9px;flex:0 0 8px;}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:var(--shadow);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--tx2);margin-bottom:8px;font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:var(--r-input);
  border:1px solid var(--line);background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
  font-size:15px;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 4px rgba(200,241,105,.55);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err);}
.err-line{display:none;font-size:14px;color:var(--err);margin-top:6px;}
.field.has-error .err-line{display:block;}
.form-privacy{font-size:12px;color:var(--tx3);margin-top:14px;line-height:1.6;}
.form-alert{
  display:none;border-left:4px solid var(--err);background:#FBEEEB;color:#8E2C1B;
  border-radius:10px;padding:12px 16px;font-size:14px;margin-bottom:18px;
}
.form-alert.show{display:block;}
.form-success{
  display:none;border-left:4px solid var(--lime);background:#F3FBE0;border-radius:10px;
  padding:18px 20px;font-size:15px;color:#3C4A18;
}
.form-success.show{display:block;}

/* 内容列表 */
.post-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.post-card:hover{transform:translateY(-2px);border-color:var(--lime);box-shadow:var(--shadow);}
.post-cover{overflow:hidden;background:var(--sand);}
.post-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease;}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.post-body h3{font-size:19px;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body p{
  color:var(--tx2);font-size:15px;display:-webkit-box;-webkit-line-clamp:3;
  -webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--tx3);border-top:1px solid var(--line);margin-top:18px;
}
.post-foot i{transition:transform .2s ease;}
.post-card:hover .post-foot i{transform:translateX(4px);color:var(--ink);}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center;
  background:var(--card);
}
.empty-state p{color:var(--tx2);margin-bottom:20px;}

/* 社会认同 */
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.proof{border-top:2px solid var(--ink);padding-top:20px;}
.proof b{font-size:clamp(30px,3.4vw,44px);font-weight:800;display:block;line-height:1.05;}
.proof span{font-size:14px;color:var(--tx2);display:block;margin-top:8px;}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);margin-top:64px;}
.quote{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;}
.quote p{font-size:15px;color:var(--tx2);}
.quote footer{margin-top:18px;font-size:13px;color:var(--tx3);display:flex;align-items:center;gap:10px;}
.quote footer b{color:var(--ink);font-size:14px;}
.quote .avatar{width:36px;height:36px;border-radius:50%;background:var(--ink);color:var(--lime);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;}

/* FAQ */
.faq{max-width:880px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  text-align:left;padding:22px 4px;font-size:17px;font-weight:700;min-height:56px;
  transition:color .2s ease;
}
.faq-q:hover{color:#3A3A40;}
.faq-q .ico{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.faq-item.open .faq-q .ico{transform:rotate(180deg);background:var(--lime);border-color:var(--lime);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a p{padding:0 4px 24px 20px;font-size:16px;color:var(--tx2);}

/* 底部 CTA */
.final-cta{
  background:var(--ink);color:var(--inv);border-radius:var(--r-card);padding:64px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:44px;align-items:center;position:relative;overflow:hidden;
}
.final-cta::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,241,105,.22),transparent 70%);
}
.final-cta h2{font-size:clamp(26px,3.2vw,40px);font-weight:700;position:relative;z-index:1;}
.final-cta p{margin-top:16px;color:#B9B6AE;max-width:520px;position:relative;z-index:1;}
.final-cta .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}

/* 页脚 */
.site-footer{background:var(--ink);color:var(--inv);padding:72px 0 32px;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand .brand{color:var(--inv);padding:0;font-size:22px;}
.foot-brand .brand span{color:#8F8C84;}
.foot-brand p{margin-top:16px;font-size:14px;color:#B9B6AE;max-width:300px;line-height:1.8;}
.foot-col h4{font-size:14px;letter-spacing:.06em;color:#8F8C84;margin-bottom:18px;font-weight:700;}
.foot-col ul{display:flex;flex-direction:column;gap:12px;}
.foot-col a{font-size:14px;color:#DAD7CF;transition:color .2s ease;}
.foot-col a:hover{color:var(--lime);}
.foot-contact li{font-size:14px;color:#DAD7CF;display:flex;gap:10px;align-items:flex-start;}
.foot-contact i{color:var(--lime);font-size:13px;margin-top:5px;}
.qr-slot{
  margin-top:18px;width:104px;height:104px;border-radius:12px;border:1px dashed rgba(244,241,234,.28);
  display:flex;align-items:center;justify-content:center;font-size:12px;color:#8F8C84;text-align:center;line-height:1.4;padding:10px;
}
.foot-divider{height:1px;background:rgba(244,241,234,.14);margin:48px 0 24px;}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:#8F8C84;}
.foot-bottom a{color:#B9B6AE;}
.foot-bottom a:hover{color:var(--lime);}
.socials{display:flex;gap:12px;}
.socials a{
  width:40px;height:40px;border-radius:50%;border:1px solid rgba(244,241,234,.2);
  display:flex;align-items:center;justify-content:center;color:#DAD7CF;font-size:14px;
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.socials a:hover{color:var(--lime);border-color:var(--lime);transform:translateY(-2px);}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  background:var(--ink);color:var(--lime);display:flex;align-items:center;justify-content:center;
  font-size:15px;opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease;z-index:65;
}
.to-top.show{opacity:1;pointer-events:auto;}
.to-top:hover{transform:translateY(-3px);}

/* 滚动进入 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
.reveal.in{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}

@media (max-width:1024px){
  :root{--sec:80px;}
  .nav-left,.nav-right .nav-link{display:none;}
  .nav-burger{display:flex;}
  .nav-mobile-only{display:flex;}
  .nav-wrap{grid-template-columns:1fr auto 1fr;}
  .nav-left{justify-content:flex-start;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero{padding:56px 0 72px;}
  .hero-visual img{aspect-ratio:16/9;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .ladder{grid-template-columns:1fr;gap:32px;}
  .ladder::before{display:none;}
  .cd-grid{grid-template-columns:1fr;gap:32px;}
  .form-grid{grid-template-columns:1fr;gap:36px;}
  .proof-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .quote-grid{grid-template-columns:1fr;gap:20px;}
  .final-cta{grid-template-columns:1fr;padding:48px;gap:28px;}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:36px;}
}

@media (max-width:768px){
  :root{--sec:56px;}
  body{font-size:16px;}
  .container{padding:0 20px;}
  .sec-head--split{flex-direction:column;align-items:flex-start;gap:20px;}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr;}
  .hero-metrics{grid-template-columns:repeat(3,1fr);gap:14px;}
  .metric b{font-size:22px;}
  .metric span{font-size:12px;}
  .hero-tag{left:12px;bottom:12px;font-size:13px;padding:8px 16px;}
  .hero-note{display:none;}
  .topbar .container{justify-content:flex-start;padding-right:54px;}
  .topbar .tb-close{right:14px;}
  .countdown-sec{padding:32px 22px;}
  .cd-boxes{gap:8px;}
  .cd-box{min-width:0;flex:1;padding:10px 4px;}
  .cd-box b{font-size:22px;}
  .form-card{padding:22px;}
  .final-cta{padding:32px 22px;}
  .proof-grid{grid-template-columns:repeat(2,1fr);gap:22px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .compare-scroll{display:none;}
  .compare-acc{display:block;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--card);}
  .acc-item{border-bottom:1px solid var(--line);}
  .acc-item:last-child{border-bottom:0;}
  .acc-head{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;font-size:15px;font-weight:700;text-align:left;min-height:56px;
  }
  .acc-head .ico{flex:0 0 24px;width:24px;height:24px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:11px;transition:transform .2s ease;}
  .acc-item.open .acc-head .ico{transform:rotate(180deg);background:var(--lime);border-color:var(--lime);}
  .acc-body{max-height:0;overflow:hidden;transition:max-height .26s ease;}
  .acc-body ul{padding:0 20px 20px;}
  .acc-body li{font-size:14px;color:var(--tx2);display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px dashed var(--line);}
  .acc-body li:last-child{border-bottom:0;}
  .to-top{right:16px;bottom:16px;}
}

@media (max-width:480px){
  .hero h1{font-size:34px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .btn{width:100%;}
  .nav-cta{width:auto;}
  .foot-grid{grid-template-columns:1fr;}
  .proof-grid{grid-template-columns:1fr;}
}

/* roulang page: category1 */
:root{
  --ink:#101013;
  --ink-soft:#22222a;
  --lime:#C8F169;
  --lime-deep:#a9d84a;
  --bg:#F4F1EA;
  --card:#FBF9F5;
  --sand:#EAE5DB;
  --line:#E3DED4;
  --t1:#101013;
  --t2:#55534E;
  --t3:#8A867E;
  --inv:#F4F1EA;
  --ok:#6F9E1F;
  --warn:#D9982E;
  --err:#D9482B;
  --radius:16px;
  --radius-img:14px;
  --radius-sm:10px;
  --pill:999px;
  --shadow:0 1px 2px rgba(16,16,19,.05);
  --shadow-lift:0 2px 10px rgba(16,16,19,.07);
  --container:1240px;
  --gap:24px;
  --sec:112px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:"Inter","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family: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;}
figure{margin:0;}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--t1);}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(244,241,234,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:height .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--line);}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
  transition:height .22s var(--ease);
}
.site-header.scrolled .header-inner{height:60px;}
.logo{
  font-size:21px;font-weight:800;letter-spacing:.04em;
  display:inline-flex;align-items:center;height:44px;padding:0 6px;
  white-space:nowrap;
}
.logo::after{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--lime);margin-left:8px;transform:translateY(-1px);
}
.nav-left,.nav-right{display:flex;align-items:center;gap:26px;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;color:var(--t2);
  padding:12px 2px;line-height:1;
  min-height:44px;display:inline-flex;align-items:center;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:2px;right:2px;bottom:6px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--t1);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--t1);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn-sm{min-height:44px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--ink);color:var(--inv);}
.btn-primary:hover{background:var(--lime);color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-lift);}
.btn-primary:active{transform:translateY(0);}
.btn-lime{background:var(--lime);color:var(--ink);}
.btn-lime:hover{background:var(--inv);color:var(--ink);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--inv);transform:translateY(-2px);}
.btn-inv{background:var(--inv);color:var(--ink);}
.btn-inv:hover{background:var(--lime);color:var(--ink);transform:translateY(-2px);}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  align-items:center;justify-content:center;background:var(--card);
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,16,19,.45);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:90;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86vw;max-width:400px;
  background:var(--bg);z-index:100;transform:translateX(100%);
  transition:transform .28s var(--ease);
  display:flex;flex-direction:column;
  padding:20px 22px 26px;overflow-y:auto;
  box-shadow:-8px 0 24px rgba(16,16,19,.12);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--card);font-size:20px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  font-size:18px;font-weight:600;padding:14px 4px;border-bottom:1px solid var(--line);
  min-height:56px;display:flex;align-items:center;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.drawer-nav a:hover{color:var(--ok);padding-left:10px;}
.drawer-foot{margin-top:auto;padding-top:22px;display:grid;gap:12px;}
.drawer-foot .tel{font-size:14px;color:var(--t2);}
.drawer-foot .tel b{color:var(--t1);font-size:16px;}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:64px 0 72px;
  background-image:
    linear-gradient(180deg,rgba(244,241,234,.94) 0%,rgba(244,241,234,.86) 46%,rgba(244,241,234,.97) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:var(--pill);
  font-size:12px;font-weight:700;letter-spacing:.06em;
  background:var(--lime);color:var(--ink);
}
.badge-soft{background:var(--sand);color:var(--t2);font-weight:600;}
.hero h1{
  font-size:clamp(30px,4.2vw,54px);
  line-height:1.12;font-weight:800;letter-spacing:-.01em;
  margin:20px 0 18px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(transparent 62%,var(--lime) 62%);
  padding:0 2px;
}
.hero-sub{
  font-size:clamp(16px,1.5vw,19px);color:var(--t2);line-height:1.7;
  max-width:520px;
}
.hero-actions{display:flex;align-items:center;gap:22px;margin-top:30px;flex-wrap:wrap;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;min-height:44px;
  border-bottom:2px solid var(--lime);
  transition:color .2s var(--ease);
}
.link-arrow span{transition:transform .2s var(--ease);}
.link-arrow:hover span{transform:translateX(4px);}
.hero-visual{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:var(--sand);
  box-shadow:var(--shadow-lift);
}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-flag{
  position:absolute;left:18px;bottom:18px;
  background:var(--lime);color:var(--ink);
  font-size:13px;font-weight:700;padding:8px 15px;border-radius:var(--pill);
}
.hero-visual figcaption{
  position:absolute;right:16px;top:16px;
  background:rgba(16,16,19,.82);color:var(--inv);
  font-size:12px;padding:6px 12px;border-radius:var(--pill);
}

/* ---------- anchor bar ---------- */
.anchor-bar{
  position:sticky;top:60px;z-index:60;
  background:rgba(244,241,234,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.anchor-inner{
  display:flex;gap:10px;align-items:center;
  padding-top:12px;padding-bottom:12px;
  overflow-x:auto;scrollbar-width:none;
}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-link{
  display:inline-flex;align-items:center;height:44px;padding:0 18px;
  border-radius:var(--pill);border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--t2);background:var(--card);
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.anchor-link:hover{color:var(--ink);border-color:var(--ink);}
.anchor-link.active{background:var(--lime);color:var(--ink);border-color:var(--lime);}

/* ---------- sections ---------- */
section{scroll-margin-top:132px;}
.sec{padding:var(--sec) 0;}
.sec-tight{padding:72px 0;}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-eyebrow{
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--ok);
  text-transform:uppercase;display:block;margin-bottom:14px;
}
.sec-head h2{
  font-size:clamp(26px,3.4vw,44px);line-height:1.15;font-weight:700;letter-spacing:-.01em;
}
.sec-head p{margin-top:16px;color:var(--t2);font-size:17px;}
.lead-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start;}
.lead-copy p + p{margin-top:22px;}
.lead-copy p{color:var(--t2);}
.lead-copy strong{color:var(--t1);}
.hl{
  border-left:4px solid var(--lime);padding-left:18px;
  font-size:19px;font-weight:600;color:var(--t1);line-height:1.6;
}
.lead-aside{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);
}
.lead-aside h3{font-size:18px;font-weight:700;margin-bottom:14px;}
.lead-aside li{
  display:flex;gap:12px;padding:13px 0;border-bottom:1px dashed var(--sand);
  font-size:15px;color:var(--t2);
}
.lead-aside li:last-child{border-bottom:0;}
.lead-aside li::before{
  content:"";width:8px;height:8px;border-radius:2px;background:var(--lime);
  margin-top:9px;flex:0 0 auto;
}

/* numbered points */
.points{display:grid;gap:20px;}
.point{
  display:grid;grid-template-columns:76px 1fr;gap:24px;align-items:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 32px;transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.point:hover{border-color:var(--lime);transform:translateY(-2px);box-shadow:var(--shadow-lift);}
.point-num{
  font-family:"Inter",sans-serif;font-size:34px;font-weight:800;line-height:1;
  color:var(--ink);letter-spacing:-.02em;position:relative;padding-bottom:10px;
}
.point-num::after{
  content:"";position:absolute;left:0;bottom:0;width:34px;height:4px;background:var(--lime);border-radius:2px;
}
.point h3{font-size:21px;font-weight:700;margin-bottom:10px;}
.point p{color:var(--t2);font-size:16px;}
.point .tiny{margin-top:12px;font-size:13px;color:var(--t3);}

/* split media */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-media{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  background:var(--sand);box-shadow:var(--shadow);
}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .3s var(--ease);}
.split-media:hover img{transform:scale(1.03);}
.split h2{font-size:clamp(24px,3vw,38px);line-height:1.2;font-weight:700;letter-spacing:-.01em;margin-bottom:18px;}
.split p{color:var(--t2);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  font-size:13px;padding:8px 14px;border-radius:var(--pill);
  background:var(--sand);color:var(--t2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.tag:hover{background:var(--lime);color:var(--ink);}

/* stat band */
.stat-band{
  background:var(--ink);color:var(--inv);border-radius:var(--radius);
  padding:44px 40px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:32px;
}
.stat{position:relative;padding-left:22px;}
.stat::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;background:rgba(244,241,234,.18);}
.stat-num{
  font-family:"Inter",sans-serif;font-weight:800;letter-spacing:-.02em;
  font-size:clamp(34px,4vw,48px);line-height:1;color:var(--lime);
}
.stat-num small{font-size:15px;font-weight:600;margin-left:6px;color:var(--inv);opacity:.75;}
.stat-label{margin-top:12px;font-size:14px;color:rgba(244,241,234,.72);line-height:1.6;}

/* process list */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.step:hover{border-color:var(--lime);transform:translateY(-2px);}
.step-idx{
  font-family:"Inter",sans-serif;font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--t3);
}
.step h3{font-size:18px;font-weight:700;margin:14px 0 10px;}
.step p{font-size:15px;color:var(--t2);}

/* testimonial */
.quote-band{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
}
.quote{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;display:flex;flex-direction:column;gap:18px;height:100%;
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.quote:hover{border-color:var(--lime);transform:translateY(-2px);}
.quote p{color:var(--t2);font-size:16px;}
.quote footer{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:14px;color:var(--t2);}
.quote footer b{color:var(--t1);}
.avatar{
  width:40px;height:40px;border-radius:50%;background:var(--ink);color:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;flex:0 0 auto;
}

/* FAQ */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  text-align:left;padding:22px 4px;min-height:56px;
  font-size:17px;font-weight:700;color:var(--t1);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--ok);}
.faq-icon{
  position:relative;width:20px;height:20px;flex:0 0 auto;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.open .faq-icon::after{transform:rotate(90deg);}
.faq-item.open .faq-icon::before{background:var(--ok);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a p{padding:0 24px 24px 20px;color:var(--t2);font-size:16px;}
.faq-item.open .faq-a{max-height:420px;}

/* CTA band */
.cta-band{
  background:var(--ink);color:var(--inv);
  border-radius:var(--radius);
  padding:52px 48px;
  display:grid;grid-template-columns:1.4fr auto;gap:36px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,241,105,.24),rgba(200,241,105,0) 68%);
}
.cta-band h2{font-size:clamp(24px,3vw,36px);line-height:1.2;font-weight:700;letter-spacing:-.01em;}
.cta-band p{margin-top:14px;color:rgba(244,241,234,.75);font-size:16px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}

/* footer */
.site-footer{background:var(--ink);color:rgba(244,241,234,.72);margin-top:var(--sec);}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding:72px 0 48px;
}
.footer-brand .f-logo{
  font-size:21px;font-weight:800;letter-spacing:.04em;color:var(--inv);
  display:inline-flex;align-items:center;
}
.footer-brand .f-logo::after{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);margin-left:8px;
}
.footer-brand p{margin-top:18px;font-size:15px;line-height:1.8;max-width:340px;}
.footer-col h3{font-size:14px;font-weight:700;color:var(--inv);margin-bottom:18px;letter-spacing:.04em;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:15px;transition:color .2s var(--ease),padding-left .2s var(--ease);display:inline-block;min-height:24px;}
.footer-col a:hover{color:var(--lime);padding-left:4px;}
.footer-contact li{font-size:15px;line-height:1.8;}
.footer-contact b{color:var(--inv);font-weight:600;}
.footer-mid{border-top:1px solid rgba(244,241,234,.14);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:26px 0 34px;font-size:13px;color:rgba(244,241,234,.55);flex-wrap:wrap;
}
.footer-bottom a:hover{color:var(--lime);}

/* back to top */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  background:var(--ink);color:var(--inv);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s var(--ease),visibility .24s var(--ease),transform .24s var(--ease),background .2s var(--ease);
  z-index:70;font-size:18px;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--lime);color:var(--ink);}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in{opacity:1;transform:translateY(0);}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .nav-left,.nav-right{gap:18px;}
  .nav-link{font-size:14px;}
}
@media (max-width:1024px){
  :root{--sec:80px;}
  .nav-left,.nav-right{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-inner{grid-template-columns:1fr auto 1fr;}
  .header-inner .logo{justify-self:center;}
  .header-inner::after{content:"";display:block;}
  .hero{padding:48px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-sub{max-width:none;}
  .lead-grid{grid-template-columns:1fr;gap:36px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .process{grid-template-columns:repeat(2,1fr);}
  .stat-band{grid-template-columns:1fr;gap:26px;padding:36px 28px;}
  .quote-band{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;gap:26px;padding:40px 28px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:34px;padding:56px 0 36px;}
  .anchor-bar{top:60px;}
  section{scroll-margin-top:120px;}
}
@media (max-width:768px){
  :root{--sec:56px;}
  body{font-size:16px;}
  .container{padding:0 20px;}
  .hero h1{letter-spacing:-.01em;}
  .point{grid-template-columns:1fr;gap:14px;padding:26px 22px;}
  .point-num{font-size:28px;}
  .process{grid-template-columns:1fr;}
  .hero-actions{gap:16px;}
  .btn{width:100%;}
  .hero-actions .btn{width:auto;}
  .cta-actions .btn{width:100%;}
  .footer-top{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .quote{padding:24px;}
}
@media (max-width:520px){
  .hero{padding:36px 0 44px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .link-arrow{justify-content:flex-start;}
  .stat-band{padding:28px 22px;}
  .cta-band{padding:32px 22px;border-radius:14px;}
  .anchor-link{height:40px;padding:0 14px;font-size:13px;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
  --ink:#101013;
  --ink-soft:#26262c;
  --lime:#C8F169;
  --lime-dim:#b6e055;
  --bg:#F4F1EA;
  --card:#FBF9F5;
  --sand:#EAE5DB;
  --line:#E3DED4;
  --text:#101013;
  --muted:#55534E;
  --weak:#8A867E;
  --invert:#F4F1EA;
  --ok:#6F9E1F;
  --err:#D9482B;
  --warn:#D9982E;
  --disabled:#C9C5BC;
  --radius-card:16px;
  --radius-img:14px;
  --radius-input:10px;
  --radius-pill:999px;
  --shadow:0 1px 2px rgba(16,16,19,.05);
  --shadow-up:0 6px 18px rgba(16,16,19,.08);
  --container:1240px;
  --font-cn:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
  --ease:200ms cubic-bezier(.22,.61,.36,1);
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0}
ul,ol{padding:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.num,.price,.count{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:112px 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head h2{font-size:clamp(26px,3.4vw,44px);line-height:1.15;font-weight:700;letter-spacing:-.01em}
.section-head .section-sub{color:var(--muted);font-size:15px;margin-top:10px;max-width:620px}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--ink);white-space:nowrap}
.link-more .arrow{transition:transform var(--ease)}
.link-more:hover .arrow{transform:translateX(4px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--lime);display:inline-block}

/* ============ 顶部公告条 ============ */
.topbar{background:var(--ink);color:var(--lime);font-size:14px}
.topbar-inner{
  position:relative;display:flex;align-items:center;justify-content:center;
  min-height:40px;text-align:center;padding-right:36px;
}
.topbar-inner strong{font-weight:700;letter-spacing:.02em}
.topbar-close{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  min-width:32px;min-height:32px;display:flex;align-items:center;justify-content:center;
  color:var(--invert);opacity:.7;border-radius:50%;transition:opacity var(--ease),background var(--ease);
}
.topbar-close:hover{opacity:1;background:rgba(244,241,234,.12)}
.topbar[hidden]{display:none}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(244,241,234,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow)}
.nav-grid{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;
  height:72px;transition:height var(--ease);
}
.site-header.is-scrolled .nav-grid{height:60px}
.nav-left,.nav-right{display:flex;align-items:center;gap:26px}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;font-size:15px;color:var(--muted);font-weight:500;
  padding:8px 0;min-height:44px;display:inline-flex;align-items:center;transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.logo{
  font-family:var(--font-num);font-size:21px;font-weight:800;letter-spacing:.04em;
  color:var(--ink);white-space:nowrap;display:inline-flex;align-items:center;gap:6px;
  min-height:44px;
}
.logo i{width:8px;height:8px;background:var(--lime);border-radius:2px;display:inline-block;font-style:normal}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:44px;padding:0 20px;border-radius:var(--radius-pill);
  background:var(--lime);color:var(--ink);font-size:14px;font-weight:700;
  transition:transform var(--ease),background var(--ease);
}
.nav-cta:hover{transform:translateY(-2px);background:var(--lime-dim)}
.hamburger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;background:var(--card);
}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}

/* 移动端抽屉 */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(16,16,19,.42);opacity:0;pointer-events:none;
  transition:opacity var(--ease);z-index:90;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;z-index:100;
  background:var(--card);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform 240ms cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-backdrop{opacity:1;pointer-events:auto}
body.drawer-open{overflow:hidden}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  display:flex;align-items:center;justify-content:center;font-size:18px;background:var(--card);
}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px}
.drawer-nav a{
  font-size:18px;font-weight:600;padding:14px 4px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;min-height:44px;
}
.drawer-nav a.active{color:var(--ink)}
.drawer-nav a.active::before{content:"●";color:var(--lime);font-size:10px;margin-right:8px}
.drawer-foot{margin-top:auto;padding-top:20px;display:flex;flex-direction:column;gap:12px}
.drawer-foot .note{font-size:13px;color:var(--weak)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  cursor:pointer;
}
.btn-primary{background:var(--ink);color:var(--invert)}
.btn-primary:hover{background:var(--ink-soft);transform:translateY(-2px)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:var(--lime-dim);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--invert);transform:translateY(-2px)}
.btn-invert{background:var(--invert);color:var(--ink)}
.btn-invert:hover{background:var(--lime);transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:nowrap;
  padding:28px 0 0;font-size:14px;color:var(--weak);overflow:hidden;
}
.breadcrumb a{color:var(--muted);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{color:var(--disabled)}
.breadcrumb .current{
  color:var(--ink);font-weight:600;white-space:nowrap;overflow:hidden;
  text-overflow:ellipsis;max-width:52vw;
}

/* ============ 文章头部 ============ */
.article-head{padding:26px 0 30px;border-bottom:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--sand);color:var(--muted);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag.is-lime{background:var(--lime);color:var(--ink)}
.article-title{
  font-size:clamp(28px,3.6vw,46px);line-height:1.18;font-weight:800;letter-spacing:-.01em;
  margin:18px 0 20px;max-width:900px;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:14px;
  font-size:14px;color:var(--weak);
}
.meta-row .bar{width:1px;height:14px;background:var(--line);display:inline-block}
.meta-row .author{color:var(--muted);font-weight:600}

/* ============ 文章栅格 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:56px;align-items:start;padding:52px 0 0;
}
.article-main{max-width:760px;min-width:0}
.article-cover{
  margin:0 0 34px;border-radius:var(--radius-img);overflow:hidden;background:var(--sand);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{font-size:13px;color:var(--weak);text-align:center;padding:10px 0 0}

/* ============ 正文排版 ============ */
.article-body{font-size:17px;line-height:1.85;color:var(--text);overflow-wrap:anywhere}
.article-body > * + *{margin-top:22px}
.article-body p{margin:0}
.article-body h2{
  position:relative;font-size:clamp(23px,2.4vw,28px);line-height:1.3;font-weight:700;
  letter-spacing:-.01em;margin:52px 0 18px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:.86em;
  background:var(--lime);border-radius:2px;
}
.article-body h3{font-size:20px;font-weight:700;margin:34px 0 14px;color:var(--ink)}
.article-body h4{font-size:17px;font-weight:700;margin:26px 0 10px}
.article-body strong{font-weight:700}
.article-body a{
  color:var(--ink);border-bottom:2px solid var(--lime);
  transition:background var(--ease),color var(--ease);
}
.article-body a:hover{background:var(--lime)}
.article-body ul,.article-body ol{padding-left:0;list-style:none}
.article-body li{position:relative;padding-left:22px;margin:10px 0}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;
  background:var(--lime);border-radius:2px;
}
.article-body ol{counter-reset:li}
.article-body ol > li{counter-increment:li}
.article-body ol > li::before{
  content:counter(li);position:absolute;left:0;top:.1em;
  font-family:var(--font-num);font-size:13px;font-weight:800;color:var(--ink);
  background:var(--sand);border-radius:6px;width:20px;height:20px;
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:30px 0;padding:20px 24px;background:var(--sand);
  border-left:3px solid var(--lime);border-radius:0 var(--radius-card) var(--radius-card) 0;
  font-size:18px;color:var(--muted);
}
.article-body blockquote p{margin:0}
.article-body img{border-radius:var(--radius-img);margin:28px 0;height:auto}
.article-body figure{margin:28px 0}
.article-body figure img{margin:0}
.article-body figcaption{font-size:13px;color:var(--weak);text-align:center;padding-top:10px}
.article-body table{width:100%;font-size:15px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden}
.article-body th{
  background:var(--ink);color:var(--invert);text-align:left;font-weight:600;
  padding:14px 16px;font-size:14px;
}
.article-body td{padding:14px 16px;border-top:1px solid var(--line);color:var(--muted)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:38px 0}
.article-body code{
  font-family:var(--font-num);font-size:14px;background:var(--sand);
  padding:2px 7px;border-radius:6px;
}
.article-body pre{
  background:var(--ink);color:var(--invert);padding:20px;border-radius:var(--radius-card);
  overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;color:inherit;padding:0}

/* 空态 */
.empty-state{
  border:1px dashed var(--disabled);border-radius:var(--radius-card);
  padding:48px 28px;text-align:center;background:var(--card);
}
.empty-state p{color:var(--muted);font-size:16px;margin-bottom:20px}

/* ============ 侧栏 ============ */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow);
}
.side-card h3{font-size:15px;font-weight:700;letter-spacing:.02em;margin-bottom:14px}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto}
.toc-list a{
  display:block;font-size:14px;color:var(--muted);padding:8px 10px;border-radius:8px;
  border-left:2px solid transparent;transition:var(--ease);min-height:38px;
}
.toc-list a:hover{background:var(--sand);color:var(--ink);border-left-color:var(--lime)}
.toc-list a.is-h3{padding-left:22px;font-size:13px;color:var(--weak)}
.rec-list{list-style:none;display:flex;flex-direction:column;gap:14px}
.rec-list a{display:block;transition:var(--ease)}
.rec-list .rec-title{font-size:14px;font-weight:600;line-height:1.55;color:var(--ink)}
.rec-list .rec-meta{font-size:12px;color:var(--weak);margin-top:4px}
.rec-list a:hover .rec-title{color:var(--ok)}
.side-consult{
  background:var(--ink);color:var(--invert);border-radius:var(--radius-card);padding:24px;
  box-shadow:var(--shadow);
}
.side-consult h3{font-size:17px;font-weight:700;color:var(--invert);margin-bottom:10px}
.side-consult p{font-size:14px;color:rgba(244,241,234,.72);line-height:1.7;margin-bottom:18px}
.side-consult .btn{width:100%}
.side-consult .note{font-size:12px;color:rgba(244,241,234,.5);margin-top:12px}

/* 目录折叠条（移动端） */
.toc-toggle{
  display:none;width:100%;align-items:center;justify-content:space-between;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:14px 18px;font-size:15px;font-weight:600;margin-bottom:26px;min-height:52px;
}
.toc-toggle i{font-style:normal;transition:transform var(--ease)}
.toc-toggle[aria-expanded="true"] i{transform:rotate(45deg)}

/* ============ 文末区块 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:48px 0 0;padding-top:28px;border-top:1px solid var(--line)}
.tag-row .label{font-size:13px;color:var(--weak);align-self:center}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.post-nav a{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;transition:var(--ease);display:flex;flex-direction:column;gap:8px;
}
.post-nav a:hover{border-color:var(--lime);transform:translateY(-2px);box-shadow:var(--shadow-up)}
.post-nav .dir{font-size:12px;color:var(--weak);letter-spacing:.08em}
.post-nav .title{font-size:15px;font-weight:600;line-height:1.55}
.post-nav .next{align-items:flex-end;text-align:right}
.back-list{display:flex;justify-content:center;margin-top:32px}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--lime);box-shadow:var(--shadow-up)}
.card-cover{background:var(--sand);overflow:hidden}
.card-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 320ms ease}
.card:hover .card-cover img{transform:scale(1.03)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:18px;font-weight:700;line-height:1.5}
.card-body p{font-size:14px;color:var(--muted);line-height:1.7}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--weak);
}
.card-foot .arrow{transition:transform var(--ease);color:var(--ink)}
.card:hover .card-foot .arrow{transform:translateX(4px)}

/* ============ FAQ ============ */
.faq{max-width:880px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:700;color:var(--ink);
  min-height:56px;
}
.faq-q .sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--sand);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  transition:transform var(--ease),background var(--ease);
}
.faq-q[aria-expanded="true"] .sign{transform:rotate(45deg);background:var(--lime)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease}
.faq-a p{padding:0 44px 24px 20px;font-size:16px;color:var(--muted);line-height:1.8}

/* ============ CTA 区块 ============ */
.cta-band{background:var(--ink);color:var(--invert);border-radius:24px;padding:60px 48px;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,241,105,.22),transparent 70%);
}
.cta-band .cta-inner{position:relative;z-index:1;max-width:640px}
.cta-band h2{font-size:clamp(26px,3.2vw,40px);line-height:1.15;font-weight:700;color:var(--invert);margin-bottom:16px}
.cta-band p{font-size:16px;color:rgba(244,241,234,.75);margin-bottom:28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-points{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;font-size:14px;color:rgba(244,241,234,.7)}
.cta-points span{display:inline-flex;align-items:center;gap:8px}
.cta-points span::before{content:"";width:6px;height:6px;background:var(--lime);border-radius:2px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--invert);margin-top:112px;padding:72px 0 28px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{color:var(--invert);font-size:22px}
.footer-brand p{font-size:14px;color:rgba(244,241,234,.6);line-height:1.8;margin-top:14px;max-width:320px}
.footer-col h3{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--invert);margin-bottom:18px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:rgba(244,241,234,.66);transition:color var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-col .plain{font-size:14px;color:rgba(244,241,234,.66)}
.footer-quote{
  margin-top:52px;padding:22px 24px;border:1px solid rgba(244,241,234,.14);border-radius:var(--radius-card);
  display:flex;align-items:center;gap:14px;font-size:14px;color:rgba(244,241,234,.75);
}
.footer-quote .avatar{
  flex:0 0 auto;width:40px;height:40px;border-radius:50%;background:var(--lime);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;
}
.footer-quote b{color:var(--invert);font-weight:700}
.footer-bottom{
  margin-top:28px;padding-top:24px;border-top:1px solid rgba(244,241,234,.14);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:rgba(244,241,234,.5);
}
.footer-bottom a{color:rgba(244,241,234,.5);transition:color var(--ease)}
.footer-bottom a:hover{color:var(--lime)}

/* ============ 返回顶部 ============ */
.back-top{
  position:fixed;right:26px;bottom:26px;width:44px;height:44px;border-radius:50%;
  background:var(--ink);color:var(--invert);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-up);opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity var(--ease),transform var(--ease);z-index:70;
}
.back-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.back-top:hover{background:var(--lime);color:var(--ink)}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .card-grid{gap:20px}
  .article-layout{gap:40px;grid-template-columns:minmax(0,1fr) 300px}
}
@media (max-width:1024px){
  .section{padding:80px 0}
  .nav-left,.nav-right .nav-link,.nav-cta{display:none}
  .nav-grid{grid-template-columns:1fr auto 1fr;height:64px}
  .site-header.is-scrolled .nav-grid{height:60px}
  .hamburger{display:flex;justify-self:end}
  .nav-left{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:40px}
  .article-aside{position:static;margin-top:44px}
  .article-main{max-width:100%}
  .toc-toggle{display:flex}
  .side-card.toc-card{display:none}
  .side-card.toc-card.is-open{display:block}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:32px}
  .topbar-inner{font-size:13px;padding-right:30px;justify-content:flex-start;text-align:left}
  .article-title{font-size:clamp(24px,6.4vw,32px)}
  .breadcrumb .current{max-width:46vw}
  .article-body{font-size:16px;line-height:1.8}
  .article-body h2{margin-top:38px}
  .post-nav{grid-template-columns:1fr}
  .post-nav .next{align-items:flex-start;text-align:left}
  .card-grid{grid-template-columns:1fr}
  .cta-band{padding:40px 26px;border-radius:18px}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1 / -1}
  .site-footer{margin-top:64px;padding:52px 0 24px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .back-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  .footer-top{grid-template-columns:1fr}
  .meta-row{gap:10px;font-size:13px}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:16px}
}

/* roulang page: category2 */
:root{
  --ink:#101013;
  --ink-2:#55534E;
  --ink-3:#8A867E;
  --lime:#C8F169;
  --bg:#F4F1EA;
  --card:#FBF9F5;
  --sand:#EAE5DB;
  --line:#E3DED4;
  --white:#FFFFFF;
  --ok:#6F9E1F;
  --err:#D9482B;
  --warn:#D9982E;
  --disabled:#C9C5BC;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(16,16,19,.05);
  --shadow-hover:0 6px 18px rgba(16,16,19,.07);
  --container:1240px;
  --pad:24px;
  --section:112px;
  --font:"Inter","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{letter-spacing:-0.01em;line-height:1.15}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
::selection{background:var(--lime);color:var(--ink)}

.container{max-width:var(--container);margin:0 auto;padding:0 var(--pad);width:100%}
.section{padding:var(--section) 0}
.section-sm{padding:72px 0}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 顶部公告 ---------- */
.topbar{
  background:var(--ink);
  color:var(--lime);
  font-size:14px;
  min-height:44px;
  display:flex;
  align-items:center;
}
.topbar .container{display:flex;align-items:center;justify-content:center;gap:14px;position:relative;padding-right:56px}
.topbar strong{color:var(--white);font-weight:600}
.topbar-close{
  position:absolute;right:var(--pad);top:50%;transform:translateY(-50%);
  background:transparent;border:1px solid rgba(244,241,234,.28);color:#F4F1EA;
  width:30px;height:30px;border-radius:999px;line-height:1;font-size:14px;
  display:flex;align-items:center;justify-content:center;transition:.2s;
}
.topbar-close:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(244,241,234,.86);
  backdrop-filter:blur(10px);
  transition:height .22s ease,box-shadow .22s ease,background .22s ease;
}
.site-header.scrolled{
  background:rgba(244,241,234,.94);
  box-shadow:0 1px 0 var(--line);
}
.nav-shell{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
  transition:height .22s ease;
}
.site-header.scrolled .nav-shell{height:60px}
.nav-left{display:flex;align-items:center;gap:6px}
.nav-right{display:flex;align-items:center;gap:6px;justify-content:flex-end}
.brand{
  font-size:21px;
  font-weight:800;
  letter-spacing:.04em;
  color:var(--ink);
  padding:6px 10px;
  white-space:nowrap;
}
.brand span{color:var(--ink-3)}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 12px;
  font-size:15px;
  color:var(--ink-2);
  transition:color .2s;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:8px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 22px;margin-left:8px;
  background:var(--lime);color:var(--ink);
  border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .2s,background .2s,color .2s;
}
.nav-cta:hover{background:var(--ink);color:var(--lime);transform:translateY(-2px)}
.nav-toggle{
  display:none;
  width:44px;height:44px;border:1px solid var(--line);background:var(--white);
  border-radius:12px;align-items:center;justify-content:center;font-size:17px;color:var(--ink);
}
.nav-toggle:hover{border-color:var(--lime)}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,16,19,.42);opacity:0;visibility:hidden;
  transition:.25s;z-index:90;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86vw;max-width:400px;background:var(--bg);
  transform:translateX(102%);transition:transform .28s ease;z-index:95;
  display:flex;flex-direction:column;padding:22px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-head .brand{padding-left:0}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);background:var(--white);border-radius:12px;
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  font-size:18px;color:var(--ink-2);padding:14px 4px;border-bottom:1px solid var(--line);
  min-height:52px;display:flex;align-items:center;transition:color .2s;
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--ink);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:24px}
.drawer-foot .btn{width:100%}
.drawer-foot p{font-size:14px;color:var(--ink-3);margin-top:14px}

/* ---------- 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:50px;padding:0 28px;border-radius:999px;border:1px solid transparent;
  font-size:16px;font-weight:600;transition:transform .2s,background .2s,color .2s,border-color .2s;
}
.btn-primary{background:var(--ink);color:#F4F1EA}
.btn-primary:hover{background:var(--lime);color:var(--ink);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#F4F1EA;transform:translateY(-2px)}
.btn-light{background:#F4F1EA;color:var(--ink)}
.btn-light:hover{background:var(--lime);color:var(--ink);transform:translateY(-2px)}
.btn-sm{min-height:44px;padding:0 20px;font-size:15px}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.text-link{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;
  font-weight:600;border-bottom:2px solid var(--lime);padding-bottom:2px;
}
.text-link .arrow{transition:transform .2s}
.text-link:hover .arrow{transform:translateX(4px)}

.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:var(--lime);color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge-soft{background:var(--sand);color:var(--ink-2);font-weight:600}
.tag{
  display:inline-flex;align-items:center;padding:6px 12px;border-radius:999px;
  background:var(--white);border:1px solid var(--line);color:var(--ink-2);font-size:13px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:68px 0 60px;background:var(--bg)}
.page-hero .hero-bg{
  position:absolute;inset:0;background-position:center;background-size:cover;
  opacity:.20;
}
.page-hero .hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(244,241,234,.62) 0%,rgba(244,241,234,.96) 68%,var(--bg) 100%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:52px;align-items:center;
}
.hero-copy h1{
  font-size:clamp(30px,4.2vw,54px);
  font-weight:800;
  line-height:1.08;
  margin:18px 0 0;
}
.hero-copy h1 em{font-style:normal;background:linear-gradient(transparent 62%,var(--lime) 62%)}
.hero-sub{margin-top:18px;font-size:clamp(16px,1.4vw,19px);color:var(--ink-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:30px}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}
.hero-metrics b{display:block;font-size:26px;font-weight:800;letter-spacing:-.02em}
.hero-metrics span{font-size:13px;color:var(--ink-3);display:block;margin-top:2px}
.hero-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:var(--sand)}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-media .float-chip{
  position:absolute;left:18px;bottom:18px;
  background:var(--lime);color:var(--ink);font-size:13px;font-weight:700;
  padding:9px 16px;border-radius:999px;
}

/* ---------- 锚点条 ---------- */
.anchor-bar{
  position:sticky;top:72px;z-index:60;
  background:rgba(244,241,234,.94);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.anchor-inner{
  display:flex;align-items:center;gap:8px;
  height:62px;overflow-x:auto;scrollbar-width:none;
}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-link{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:999px;font-size:14px;color:var(--ink-2);border:1px solid transparent;
  transition:.2s;white-space:nowrap;
}
.anchor-link:hover{border-color:var(--line);background:var(--white);color:var(--ink)}
.anchor-link.is-current{background:var(--lime);color:var(--ink);font-weight:600}
.anchor-spacer{flex:1 1 auto;min-width:8px}

/* ---------- 主体分栏 ---------- */
.main-split{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;align-items:start;
}
.block-head{max-width:620px}
.block-head .eyebrow{
  font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);
}
.block-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;margin-top:12px}
.block-head p{margin-top:14px;color:var(--ink-2)}

/* 编号大列表 */
.step-list{margin-top:38px;border-top:1px solid var(--line)}
.step-item{
  display:grid;grid-template-columns:96px minmax(0,1fr);gap:24px;
  padding:34px 0;border-bottom:1px solid var(--line);
  transition:background .2s;
}
.step-no{
  font-size:clamp(34px,4vw,46px);font-weight:800;line-height:1;color:var(--ink);
  letter-spacing:-.03em;position:relative;padding-left:14px;
}
.step-no::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--lime);
}
.step-item h3{font-size:21px;font-weight:700}
.step-item p{margin-top:12px;color:var(--ink-2);font-size:16px}
.step-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.step-meta span{
  font-size:13px;color:var(--ink-2);background:var(--card);border:1px solid var(--line);
  border-radius:999px;padding:5px 12px;
}

/* 右侧咨询卡 */
.consult-card{
  position:sticky;top:156px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow);
}
.consult-card h2{font-size:22px;font-weight:700;margin-top:12px}
.consult-card > p{margin-top:10px;font-size:15px;color:var(--ink-2)}
.consult-points{margin-top:18px;display:grid;gap:10px}
.consult-points li{display:flex;gap:10px;font-size:15px;color:var(--ink-2)}
.consult-points li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;background:var(--lime);border-radius:2px;margin-top:9px;
}
.form-grid{display:grid;gap:16px;margin-top:22px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:13px;color:var(--ink-2);font-weight:600}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);
  font-size:15px;transition:border-color .2s,box-shadow .2s;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.6}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 4px rgba(200,241,105,.55);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err)}
.form-submit{width:100%;min-height:52px;margin-top:6px}
.form-note{font-size:12px;color:var(--ink-3);margin-top:12px;line-height:1.6}
.form-alert{
  display:none;margin-top:16px;padding:12px 14px;border-radius:var(--radius-sm);
  background:#FBE9E4;color:#8E2A16;font-size:14px;border:1px solid #F0C4BA;
}
.form-alert.show{display:block}
.form-success{
  display:none;margin-top:18px;padding:16px 18px;border-radius:var(--radius-sm);
  background:var(--white);border-left:4px solid var(--lime);font-size:15px;color:var(--ink);
}
.form-success.show{display:block}

/* ---------- 权益数据条 ---------- */
.stat-strip{
  background:var(--ink);color:#F4F1EA;border-radius:var(--radius-lg);
  padding:44px 40px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;
  position:relative;overflow:hidden;
}
.stat-strip::after{
  content:"";position:absolute;right:-60px;top:-60px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,241,105,.22),transparent 68%);
}
.stat-item{position:relative;z-index:1}
.stat-item b{
  display:block;font-size:clamp(30px,3.6vw,44px);font-weight:800;color:var(--lime);letter-spacing:-.03em;
}
.stat-item span{display:block;margin-top:8px;font-size:14px;color:rgba(244,241,234,.76);line-height:1.6}

/* ---------- 场景 ---------- */
.scene-grid{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:48px;align-items:center}
.scene-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:var(--sand)}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.scene-list{margin-top:26px;display:grid;gap:14px}
.scene-list li{
  display:flex;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;transition:transform .2s,border-color .2s,box-shadow .2s;
}
.scene-list li:hover{transform:translateY(-2px);border-color:var(--lime);box-shadow:var(--shadow-hover)}
.scene-list i{color:var(--ink);font-size:16px;margin-top:3px}
.scene-list b{font-size:16px;font-weight:700}
.scene-list p{font-size:15px;color:var(--ink-2);margin-top:4px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 0;min-height:56px;font-size:17px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 30px;width:30px;height:30px;border-radius:999px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:500;
  transition:transform .2s,background .2s,border-color .2s;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--lime);border-color:var(--lime)}
.faq-item p{padding:0 0 24px 20px;color:var(--ink-2);font-size:16px;max-width:760px}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--ink);color:#F4F1EA;border-radius:var(--radius-lg);
  padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:-40px;bottom:-90px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,241,105,.18),transparent 70%);
}
.cta-band .cta-copy{position:relative;z-index:1;max-width:640px}
.cta-band h2{font-size:clamp(24px,3vw,36px);font-weight:700;color:#F4F1EA}
.cta-band p{margin-top:14px;color:rgba(244,241,234,.76);font-size:16px}
.cta-band .cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(244,241,234,.72);margin-top:var(--section);padding:64px 0 28px}
.footer-quote{
  display:flex;align-items:center;gap:14px;
  border:1px solid rgba(244,241,234,.14);border-radius:var(--radius);
  padding:18px 22px;margin-bottom:48px;background:rgba(244,241,234,.03);
}
.footer-quote .avatar{
  flex:0 0 40px;width:40px;height:40px;border-radius:999px;background:var(--lime);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.footer-quote span:last-child{font-size:15px}
.footer-quote b{color:#F4F1EA;font-weight:600}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-logo{font-size:21px;font-weight:800;letter-spacing:.04em;color:#F4F1EA}
.footer-logo span{color:rgba(244,241,234,.45)}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.75;max-width:300px}
.footer-col h3{font-size:14px;color:#F4F1EA;font-weight:700;margin:0 0 16px}
.footer-col a{display:block;font-size:14px;padding:6px 0;min-height:36px;transition:color .2s,transform .2s}
.footer-col a:hover{color:var(--lime);transform:translateX(3px)}
.footer-col p{font-size:14px;line-height:1.8}
.footer-social{display:flex;gap:10px;margin-top:16px}
.footer-social a{
  width:44px;height:44px;border-radius:999px;border:1px solid rgba(244,241,234,.18);
  display:flex;align-items:center;justify-content:center;color:rgba(244,241,234,.8);
  transition:.2s;
}
.footer-social a:hover{color:var(--lime);border-color:var(--lime);transform:translateY(-2px)}
.footer-divider{height:1px;background:rgba(244,241,234,.14);margin:44px 0 22px}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;font-size:13px}
.back-top{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 18px;border-radius:999px;background:rgba(244,241,234,.08);
  color:#F4F1EA;font-size:13px;transition:.2s;
}
.back-top:hover{background:var(--lime);color:var(--ink)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--section:80px}
  .nav-left,.nav-right{display:none}
  .nav-shell{grid-template-columns:1fr auto 1fr}
  .nav-toggle{display:flex}
  .nav-shell .brand{justify-self:center}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .main-split{grid-template-columns:1fr;gap:40px}
  .consult-card{position:static}
  .scene-grid{grid-template-columns:1fr;gap:32px}
  .stat-strip{grid-template-columns:1fr;gap:22px;padding:34px 26px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .anchor-bar{top:60px}
}
@media (max-width:768px){
  :root{--section:56px;--pad:20px}
  body{font-size:16px}
  .topbar .container{padding-right:52px;justify-content:flex-start}
  .topbar p{font-size:13px}
  .topbar p span.hide-sm{display:none}
  .step-item{grid-template-columns:64px minmax(0,1fr);gap:16px;padding:26px 0}
  .step-no{font-size:30px;padding-left:10px}
  .hero-metrics{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
  .hero-metrics b{font-size:21px}
  .hero-metrics span{font-size:12px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:32px 22px}
  .cta-band .cta-actions{width:100%}
  .cta-band .btn{width:100%}
  .consult-card{padding:22px}
  .faq-item p{padding-left:0}
}
@media (max-width:520px){
  .brand{font-size:19px}
  .hero-actions{gap:14px}
  .hero-actions .btn{width:100%}
  .hero-actions .text-link{width:100%;justify-content:flex-start}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --ink:#101013;
  --ink-2:#1b1b20;
  --lime:#C8F169;
  --lime-deep:#A8D945;
  --sand:#F4F1EA;
  --card:#FBF9F5;
  --soft:#EAE5DB;
  --line:#E3DED4;
  --t1:#101013;
  --t2:#55534E;
  --t3:#8A867E;
  --inv:#F4F1EA;
  --ok:#6F9E1F;
  --err:#D9482B;
  --warn:#D9982E;
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --r-btn:999px;
  --sh:0 1px 2px rgba(16,16,19,.05);
  --container:1240px;
  --sec:112px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--sand);color:var(--t1);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
  font-size:17px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px}
.dark-band :focus-visible,.site-footer :focus-visible,.drawer :focus-visible{outline-color:var(--lime)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0}
.section-sm{padding:72px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;
  text-transform:uppercase;color:var(--t2);margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);display:block}
h1{font-size:clamp(30px,4.2vw,54px);line-height:1.12;font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(26px,3.4vw,44px);line-height:1.15;font-weight:700;letter-spacing:-.01em}
h3{font-size:20px;line-height:1.4;font-weight:700}
.lead{font-size:17px;color:var(--t2);line-height:1.8}
.muted{color:var(--t3);font-size:14px;line-height:1.7}
.num{font-family:Inter,"Helvetica Neue",Arial,sans-serif;font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn:active{transform:translateY(0)}
.btn-dark{background:var(--ink);color:var(--inv)}
.btn-dark:hover{background:#000;transform:translateY(-2px);box-shadow:0 6px 18px rgba(16,16,19,.16)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:var(--ink);color:var(--lime);transform:translateY(-2px)}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:var(--inv);transform:translateY(-2px)}
.btn-inv{background:var(--inv);color:var(--ink)}
.btn-inv:hover{background:var(--lime);transform:translateY(-2px)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-xl{height:56px;padding:0 34px;font-size:16px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--ink)}
.link-arrow i{
  display:inline-block;width:16px;height:16px;flex:none;
  background:currentColor;
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M13.2 5l7 7-7 7-1.4-1.4 4.6-4.6H4v-2h12.4l-4.6-4.6z'/></svg>") center/16px no-repeat;
  mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M13.2 5l7 7-7 7-1.4-1.4 4.6-4.6H4v-2h12.4l-4.6-4.6z'/></svg>") center/16px no-repeat;
  transition:transform .2s ease;
}
.link-arrow:hover{color:var(--ok)}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--lime);color:var(--ink);
}
.badge-soft{background:var(--soft);color:var(--t2)}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:var(--soft);color:var(--t2);font-size:12px;font-weight:600;
}

/* ---------- 页头导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(244,241,234,.92);
  -webkit-backdrop-filter:saturate(160%) blur(12px);
  backdrop-filter:saturate(160%) blur(12px);
  transition:box-shadow .22s ease,border-color .22s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(16,16,19,.02)}
.nav-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  height:72px;transition:height .22s ease;
}
.site-header.is-stuck .nav-inner{height:60px}
.brand{
  font-size:21px;font-weight:800;letter-spacing:.04em;color:var(--ink);
  padding:8px 14px;border-radius:12px;white-space:nowrap;
}
.brand:hover{background:rgba(200,241,105,.34)}
.nav-left,.nav-right{display:flex;align-items:center;gap:26px}
.nav-left{justify-self:start}
.nav-right{justify-self:end}
.nav-link{
  position:relative;font-size:14px;font-weight:500;color:var(--t2);
  padding:8px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;
  justify-self:end;border:1px solid var(--line);background:var(--card);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-icon-left{display:none;justify-self:start}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,16,19,.42);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86vw;max-width:400px;background:var(--sand);
  transform:translateX(100%);transition:transform .28s ease;z-index:100;
  display:flex;flex-direction:column;padding:20px 24px 28px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-brand{font-size:19px;font-weight:800;letter-spacing:.04em}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--card);
  display:grid;place-items:center;font-size:20px;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-nav a{
  font-size:18px;font-weight:600;padding:15px 4px;border-bottom:1px solid var(--line);color:var(--t1);
}
.drawer-nav a.active{color:var(--ink)}
.drawer-nav a.active::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--lime);margin-right:10px;vertical-align:middle}
.drawer-foot{margin-top:auto;padding-top:24px}
.drawer-foot .btn{width:100%}
.drawer-tel{margin-top:14px;font-size:14px;color:var(--t2)}

/* ---------- 分类 Hero ---------- */
.cat-hero{position:relative;overflow:hidden;padding:88px 0 72px;isolation:isolate}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  opacity:.2;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,rgba(244,241,234,.97) 0%,rgba(244,241,234,.9) 42%,rgba(244,241,234,.55) 100%);
}
.cat-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.cat-hero h1{margin-bottom:20px}
.cat-hero h1 em{font-style:normal;box-shadow:inset 0 -14px 0 var(--lime)}
.cat-hero-sub{font-size:19px;color:var(--t2);max-width:520px;margin-bottom:32px;line-height:1.65}
.cat-hero-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-bottom:44px}
.trust-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:560px}
.trust-item b{display:block;font-size:26px;font-weight:800;line-height:1.1;letter-spacing:-.02em}
.trust-item span{display:block;font-size:13px;color:var(--t3);line-height:1.5;margin-top:6px}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;background:var(--soft);box-shadow:var(--sh)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-media-flag{
  position:absolute;left:18px;bottom:18px;background:var(--lime);color:var(--ink);
  font-size:13px;font-weight:700;padding:9px 16px;border-radius:999px;
}

/* ---------- 分类标签条 ---------- */
.cat-tabs{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--card)}
.tabs-inner{display:flex;gap:10px;padding:16px 0;overflow-x:auto;scrollbar-width:none}
.tabs-inner::-webkit-scrollbar{display:none}
.tab{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--t2);background:var(--soft);white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.tab:hover{background:#e2dbcd;color:var(--ink);transform:translateY(-2px)}
.tab.active{background:var(--lime);color:var(--ink)}

/* ---------- 通用板块头 ---------- */
.sec-head{max-width:760px;margin-bottom:56px}
.sec-head h2{margin-bottom:18px}
.sec-head p{color:var(--t2)}

/* ---------- 转化诊断卡组 ---------- */
.diag-layout{display:grid;grid-template-columns:1fr;gap:48px}
.diag-text{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.diag-text p{color:var(--t2);font-size:16px;line-height:1.8}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh);
  transition:border-color .2s ease,transform .2s ease;
}
.card:hover{border-color:var(--lime);transform:translateY(-2px)}
.card h3{margin:14px 0 10px}
.card p{color:var(--t2);font-size:15px;line-height:1.75}
.card-num{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;
  border-radius:10px;background:var(--ink);color:var(--lime);font-size:13px;font-weight:700;
  font-family:Inter,Arial,sans-serif;font-variant-numeric:tabular-nums;
}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:17px;top:12px;bottom:12px;width:2px;background:var(--line);
}
.tl-item{position:relative;padding-left:72px;padding-bottom:64px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:0;top:0;width:36px;height:36px;border-radius:50%;
  background:var(--lime);color:var(--ink);display:grid;place-items:center;
  font-size:13px;font-weight:800;font-family:Inter,Arial,sans-serif;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px var(--sand);
}
.tl-body{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.tl-item:nth-child(even) .tl-body .tl-text{order:2}
.tl-item:nth-child(even) .tl-body .tl-media{order:1}
.tl-text h3{margin-bottom:10px}
.tl-text p{color:var(--t2);font-size:16px;line-height:1.8}
.tl-meta{display:block;font-size:13px;color:var(--t3);margin-bottom:8px;letter-spacing:.02em}
.tl-media{border-radius:var(--r-img);overflow:hidden;background:var(--soft);border:1px solid var(--line)}
.tl-media img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ---------- 深色数据条 ---------- */
.dark-band{background:var(--ink);color:var(--inv);position:relative;overflow:hidden}
.dark-band::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;opacity:.14;
}
.dark-band .container{position:relative;z-index:2}
.dark-head{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:end;margin-bottom:56px}
.dark-head h2{color:var(--inv)}
.dark-head p{color:rgba(244,241,234,.72);font-size:16px;line-height:1.8}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{border-top:2px solid var(--lime);padding-top:20px}
.stat b{display:block;font-size:clamp(30px,3.4vw,44px);font-weight:800;color:var(--lime);line-height:1.05;letter-spacing:-.02em}
.stat span{display:block;margin-top:10px;font-size:14px;color:rgba(244,241,234,.7);line-height:1.6}

/* ---------- 权益清单 ---------- */
.benefit-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.benefit-list{display:grid;gap:14px;margin-top:28px}
.benefit-list li{display:flex;gap:14px;align-items:flex-start;font-size:16px;color:var(--t2);line-height:1.7}
.benefit-list li::before{
  content:"";flex:none;width:10px;height:10px;background:var(--lime);border-radius:2px;margin-top:9px;
}
.benefit-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--soft)}
.benefit-media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;text-align:left;font-size:17px;font-weight:700;color:var(--ink);min-height:56px;
}
.faq-q:hover{color:var(--ok)}
.faq-icon{
  position:relative;flex:none;width:20px;height:20px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-item.is-open .faq-icon::before{background:var(--ok)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a-inner{padding:0 40px 26px 20px;color:var(--t2);font-size:15.5px;line-height:1.85}

/* ---------- 底部 CTA ---------- */
.cta-block{
  background:var(--card);border:1px solid var(--line);border-radius:24px;
  padding:56px;display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center;
  box-shadow:var(--sh);
}
.cta-block h2{margin-bottom:16px}
.cta-block p{color:var(--t2);font-size:16px;line-height:1.8}
.cta-actions{display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.cta-actions .btn{width:100%}
.cta-note{font-size:13px;color:var(--t3);line-height:1.6}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--inv);padding:72px 0 32px}
.foot-quote{
  display:flex;align-items:center;gap:14px;padding:18px 22px;border-radius:var(--r-card);
  background:rgba(244,241,234,.06);border:1px solid rgba(244,241,234,.12);
  font-size:15px;color:rgba(244,241,234,.86);margin-bottom:56px;
}
.avatar{
  width:44px;height:44px;flex:none;border-radius:50%;background:var(--lime);color:var(--ink);
  display:grid;place-items:center;font-weight:800;font-size:16px;
}
.foot-quote b{color:var(--inv)}
.foot-cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand{font-size:21px;font-weight:800;letter-spacing:.04em;margin-bottom:16px;color:var(--inv)}
.foot-desc{font-size:14px;line-height:1.8;color:rgba(244,241,234,.65);max-width:320px}
.foot-title{font-size:13px;font-weight:700;letter-spacing:.1em;color:rgba(244,241,234,.5);margin-bottom:18px}
.foot-links{display:grid;gap:12px}
.foot-links a{font-size:14.5px;color:rgba(244,241,234,.78)}
.foot-links a:hover{color:var(--lime)}
.foot-contact{font-size:14.5px;color:rgba(244,241,234,.78);line-height:1.9}
.foot-contact b{color:var(--inv);font-weight:600}
.qr-box{
  margin-top:16px;width:96px;height:96px;border-radius:12px;border:1px dashed rgba(244,241,234,.28);
  display:grid;place-items:center;font-size:12px;color:rgba(244,241,234,.45);text-align:center;line-height:1.4;
}
.foot-line{height:1px;background:rgba(244,241,234,.14);margin:48px 0 24px}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:rgba(244,241,234,.55)}
.foot-bottom a{color:rgba(244,241,234,.7)}
.foot-bottom a:hover{color:var(--lime)}
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  background:var(--ink);color:var(--lime);display:grid;place-items:center;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease,transform .2s ease;z-index:70;
}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-2px)}
.to-top svg{width:18px;height:18px;fill:currentColor}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sec:80px}
  .nav-left,.nav-right{display:none}
  .nav-toggle{display:flex}
  .nav-icon-left{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--card)}
  .cat-hero-grid{grid-template-columns:1fr;gap:40px}
  .cat-hero-sub{max-width:none}
  .diag-text{grid-template-columns:1fr;gap:18px}
  .card-grid{grid-template-columns:1fr 1fr}
  .stat-grid{grid-template-columns:1fr 1fr;gap:28px}
  .dark-head{grid-template-columns:1fr;gap:18px;align-items:start}
  .benefit-grid{grid-template-columns:1fr;gap:36px}
  .cta-block{grid-template-columns:1fr;gap:32px;padding:40px}
  .foot-cols{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  :root{--sec:56px}
  body{font-size:16px}
  .container{padding:0 20px}
  .cat-hero{padding:56px 0 48px}
  .card-grid{grid-template-columns:1fr}
  .trust-row{grid-template-columns:repeat(3,1fr);gap:14px}
  .trust-item b{font-size:21px}
  .trust-item span{font-size:12px}
  .tl-body{grid-template-columns:1fr;gap:20px}
  .tl-item:nth-child(even) .tl-body .tl-text{order:1}
  .tl-item:nth-child(even) .tl-body .tl-media{order:2}
  .tl-item{padding-left:58px;padding-bottom:48px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:24px}
  .cta-block{padding:28px;border-radius:20px}
  .foot-cols{grid-template-columns:1fr;gap:32px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:16px}
  .cat-hero-actions .btn{width:100%}
  .cat-hero-actions{flex-direction:column;align-items:stretch;gap:14px}
}
@media (max-width:520px){
  .stat-grid{grid-template-columns:1fr}
  .trust-row{grid-template-columns:1fr;gap:16px}
  .trust-item{display:flex;align-items:baseline;gap:12px}
  .trust-item b{font-size:22px}
  .trust-item span{margin-top:0}
}

/* roulang page: category4 */
:root{
  --ink:#101013;
  --lime:#C8F169;
  --bg:#F4F1EA;
  --card:#FBF9F5;
  --sand:#EAE5DB;
  --line:#E3DED4;
  --text:#101013;
  --text-2:#55534E;
  --text-3:#8A867E;
  --reverse:#F4F1EA;
  --ok:#6F9E1F;
  --err:#D9482B;
  --warn:#D9982E;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(16,16,19,.05);
  --container:1240px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","SF Pro Display",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:hidden;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;}
p{margin:0;}
h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:-0.01em;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* 顶部公告条 */
.topbar{background:var(--ink);color:var(--lime);font-size:14px;min-height:40px;display:flex;align-items:center;position:relative;z-index:61;}
.topbar .container{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;text-align:center;}
.topbar strong{font-family:var(--font-num);font-weight:700;font-variant-numeric:tabular-nums;}
.topbar a{color:var(--lime);text-decoration:underline;text-underline-offset:3px;}
.topbar a:hover{opacity:.82;}
.topbar-close{position:absolute;right:16px;top:50%;transform:translateY(-50%);width:28px;height:28px;display:grid;place-items:center;border-radius:999px;color:var(--lime);opacity:.7;transition:opacity .2s,background .2s;}
.topbar-close:hover{opacity:1;background:rgba(200,241,105,.14);}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(244,241,234,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .22s ease,background .22s ease;}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(244,241,234,.96);}
.header-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;height:72px;transition:height .22s ease;}
.site-header.is-scrolled .header-inner{height:60px;}
.nav-left{display:flex;align-items:center;gap:24px;}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:24px;}
.nav-link{position:relative;font-size:14.5px;color:var(--text-2);padding:6px 0;transition:color .2s ease;white-space:nowrap;}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left center;transition:transform .2s ease;}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.logo{justify-self:center;font-family:var(--font-num);font-size:21px;font-weight:800;letter-spacing:.04em;color:var(--ink);white-space:nowrap;}
.icon-home{display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;justify-self:start;border:1px solid var(--line);background:var(--card);transition:border-color .2s,color .2s;}
.icon-home:hover{border-color:var(--ink);}
.icon-home svg{width:18px;height:18px;}
.menu-toggle{display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;justify-self:end;border:1px solid var(--line);background:var(--card);transition:border-color .2s;}
.menu-toggle:hover{border-color:var(--ink);}
.menu-toggle i{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.menu-toggle i::before,.menu-toggle i::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.menu-toggle i::before{top:-6px;}
.menu-toggle i::after{top:6px;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;white-space:nowrap;}
.btn-primary{background:var(--ink);color:var(--reverse);}
.btn-primary:hover{background:#26262b;transform:translateY(-2px);}
.btn-lime{background:var(--lime);color:var(--ink);}
.btn-lime:hover{background:#d8f88a;transform:translateY(-2px);}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:var(--reverse);transform:translateY(-2px);}
.btn-ghost-light{border:1px solid rgba(244,241,234,.42);color:var(--reverse);background:transparent;}
.btn-ghost-light:hover{background:var(--reverse);color:var(--ink);transform:translateY(-2px);}
.btn-sm{min-height:44px;padding:0 20px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);}
.link-arrow span.arw{transition:transform .2s ease;}
.link-arrow:hover span.arw{transform:translateX(4px);}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:90;visibility:hidden;pointer-events:none;}
.drawer.open{visibility:visible;pointer-events:auto;}
.drawer-mask{position:absolute;inset:0;background:rgba(16,16,19,.5);opacity:0;transition:opacity .26s ease;}
.drawer.open .drawer-mask{opacity:1;}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:86vw;max-width:400px;background:var(--bg);transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column;padding:22px;overflow-y:auto;}
.drawer.open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head .logo{justify-self:auto;}
.drawer-close{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;border:1px solid var(--line);background:var(--card);font-size:20px;line-height:1;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{font-size:18px;padding:14px 4px;border-bottom:1px solid var(--line);color:var(--text-2);transition:color .2s,padding-left .2s;}
.drawer-nav a:hover{color:var(--ink);padding-left:8px;}
.drawer-nav a.active{color:var(--ink);font-weight:700;}
.drawer-foot{margin-top:auto;padding-top:22px;display:grid;gap:12px;}
.drawer-foot .tel{font-size:14px;color:var(--text-3);}
.drawer-foot .tel b{font-family:var(--font-num);font-size:17px;color:var(--ink);display:block;letter-spacing:.02em;}

/* 面包屑 */
.breadcrumb-wrap{background:var(--bg);border-bottom:1px solid var(--line);}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13.5px;color:var(--text-3);padding:14px 0;}
.breadcrumb a{color:var(--text-3);transition:color .2s;}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .cur{color:var(--ink);font-weight:600;}

/* 首屏 */
.page-hero{position:relative;background:var(--ink);color:var(--reverse);padding:76px 0 68px;overflow:hidden;}
.page-hero::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-3.png");background-size:cover;background-position:center;opacity:.34;}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(102deg,rgba(16,16,19,.96) 0%,rgba(16,16,19,.82) 46%,rgba(16,16,19,.5) 100%);}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(200,241,105,.14);border:1px solid rgba(200,241,105,.4);color:var(--lime);font-size:12.5px;font-weight:600;padding:7px 14px;border-radius:999px;letter-spacing:.02em;}
.hero-title{font-size:clamp(30px,4.2vw,54px);line-height:1.14;font-weight:800;margin:22px 0 18px;}
.hero-title .hl{color:var(--lime);}
.hero-sub{font-size:17px;color:rgba(244,241,234,.78);max-width:520px;}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:30px;}
.hero-actions .link-arrow{color:var(--reverse);}
.hero-actions .link-arrow:hover{color:var(--lime);}
.hero-metrics{display:flex;gap:36px;margin-top:38px;flex-wrap:wrap;padding-top:26px;border-top:1px solid rgba(244,241,234,.16);}
.metric-num{font-family:var(--font-num);font-size:26px;font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums;line-height:1.1;}
.metric-num small{font-size:14px;font-weight:700;margin-left:2px;}
.metric-label{font-size:13px;color:rgba(244,241,234,.66);margin-top:6px;}
.hero-media{border-radius:var(--radius);overflow:hidden;border:1px solid rgba(244,241,234,.18);position:relative;}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--sand);}
.hero-media .tag-float{position:absolute;left:16px;bottom:16px;background:var(--lime);color:var(--ink);font-size:12.5px;font-weight:700;padding:7px 14px;border-radius:999px;}

/* 锚点条 */
.anchor-bar{background:var(--card);border-bottom:1px solid var(--line);}
.anchor-inner{display:flex;gap:10px;padding:14px 0;overflow-x:auto;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-link{flex:0 0 auto;font-size:14px;padding:9px 18px;border-radius:999px;background:var(--sand);color:var(--text-2);border:1px solid transparent;transition:background .2s,color .2s,border-color .2s;}
.anchor-link:hover{border-color:var(--ink);color:var(--ink);}
.anchor-link.active{background:var(--lime);color:var(--ink);font-weight:600;}

/* 板块 */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:780px;margin-bottom:44px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);font-size:12px;letter-spacing:.1em;color:var(--text-3);text-transform:uppercase;}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--lime);}
.section-title{font-size:clamp(26px,3.4vw,44px);line-height:1.15;font-weight:700;margin:14px 0 14px;}
.section-sub{color:var(--text-2);font-size:16.5px;max-width:640px;}

/* 场景图文 */
.scene-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.scene-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--sand);}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.scene-list{display:grid;gap:18px;}
.scene-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;}
.scene-item:hover{transform:translateY(-2px);border-color:var(--lime);box-shadow:var(--shadow);}
.scene-item h3{font-size:18px;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.scene-item h3 em{font-family:var(--font-num);font-style:normal;font-size:12px;font-weight:700;background:var(--sand);color:var(--text-2);border-radius:999px;padding:4px 10px;letter-spacing:.04em;}
.scene-item p{font-size:14.8px;color:var(--text-2);}

/* 对比卡 */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:34px 32px;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:transform .22s ease,border-color .22s ease;}
.compare-card:hover{transform:translateY(-2px);border-color:var(--lime);}
.compare-card.featured{border:2px solid var(--lime);background:linear-gradient(180deg,rgba(200,241,105,.10) 0%,rgba(251,249,245,1) 42%);}
.compare-badge{align-self:flex-start;background:var(--lime);color:var(--ink);font-size:12px;font-weight:700;padding:6px 13px;border-radius:999px;letter-spacing:.02em;}
.compare-name{font-size:23px;font-weight:700;margin:18px 0 8px;}
.compare-fit{font-size:14.5px;color:var(--text-2);}
.compare-list{list-style:none;display:grid;gap:12px;margin-top:24px;font-size:15.2px;color:var(--text-2);}
.compare-list li{position:relative;padding-left:26px;}
.compare-list li::before{content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:3px;background:var(--lime);}
.compare-list li b{color:var(--ink);font-weight:600;}
.price-row{margin-top:auto;padding-top:26px;border-top:1px dashed var(--line);display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;}
.price-old{font-family:var(--font-num);font-size:14px;color:var(--text-3);text-decoration:line-through;}
.price-now{font-family:var(--font-num);font-size:clamp(28px,3vw,38px);font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--ink);line-height:1;}
.price-now .cur{font-size:18px;font-weight:700;margin-right:2px;}
.price-unit{font-size:13.5px;color:var(--text-3);}
.compare-card .btn{margin-top:24px;width:100%;}

/* 数据条 */
.stat-band{background:var(--ink);color:var(--reverse);border-radius:var(--radius);padding:44px;display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.stat-item{border-left:1px solid rgba(244,241,234,.16);padding-left:24px;}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{font-family:var(--font-num);font-size:clamp(30px,4vw,46px);font-weight:800;color:var(--lime);line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.stat-num small{font-size:16px;font-weight:700;margin-left:3px;}
.stat-label{font-size:14px;color:rgba(244,241,234,.72);margin-top:12px;}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;transition:transform .2s ease,border-color .2s ease;}
.step:hover{transform:translateY(-2px);border-color:var(--lime);}
.step-no{font-family:var(--font-num);font-size:13px;font-weight:700;width:32px;height:32px;border-radius:999px;background:var(--lime);color:var(--ink);display:grid;place-items:center;}
.step h3{font-size:18px;font-weight:700;margin:18px 0 8px;}
.step p{font-size:14.5px;color:var(--text-2);}
.step-meta{display:inline-block;margin-top:16px;font-size:12.5px;color:var(--text-3);border-top:1px solid var(--line);padding-top:12px;width:100%;font-family:var(--font-num);letter-spacing:.02em;}

/* FAQ */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 4px;font-size:17px;font-weight:700;cursor:pointer;list-style:none;min-height:56px;transition:color .2s;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:#000;}
.faq-icon{position:relative;flex:0 0 auto;width:22px;height:22px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.faq-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-answer{padding:0 44px 24px 20px;font-size:15.5px;color:var(--text-2);}

/* 底部 CTA */
.cta-block{position:relative;background:var(--ink);color:var(--reverse);border-radius:20px;padding:56px;overflow:hidden;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.cta-block::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.webp");background-size:cover;background-position:center;opacity:.16;}
.cta-block::after{content:"";position:absolute;inset:0;background:linear-gradient(96deg,rgba(16,16,19,.94) 0%,rgba(16,16,19,.72) 100%);}
.cta-copy,.cta-form{position:relative;z-index:2;}
.cta-title{font-size:clamp(24px,2.8vw,36px);font-weight:800;line-height:1.2;}
.cta-text{margin-top:14px;color:rgba(244,241,234,.76);font-size:15.5px;max-width:460px;}
.cta-points{list-style:none;display:grid;gap:12px;margin-top:26px;font-size:14.5px;color:rgba(244,241,234,.82);}
.cta-points li{position:relative;padding-left:22px;}
.cta-points li::before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:2px;background:var(--lime);}
.cta-form{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:28px;color:var(--text);}
.form-row{display:grid;gap:8px;margin-bottom:16px;}
.form-row label{font-size:13px;color:var(--text-2);font-weight:600;}
.form-row input,.form-row select{height:48px;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--sand);padding:0 14px;transition:border-color .2s,box-shadow .2s,background .2s;width:100%;}
.form-row input::placeholder{color:var(--text-3);}
.form-row input:focus,.form-row select:focus{outline:none;border-color:var(--ink);background:#fff;box-shadow:0 0 0 4px rgba(200,241,105,.55);}
.cta-form .btn{width:100%;min-height:52px;}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:12px;line-height:1.6;}
.form-msg{margin-top:12px;font-size:13.5px;color:var(--ok);min-height:20px;}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(244,241,234,.7);padding:68px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-logo{font-family:var(--font-num);font-size:20px;font-weight:800;letter-spacing:.04em;color:var(--reverse);}
.footer-desc{font-size:14.5px;margin-top:16px;max-width:320px;line-height:1.8;}
.footer-testimonial{display:flex;align-items:center;gap:12px;margin-top:22px;padding:14px 16px;border:1px solid rgba(244,241,234,.16);border-radius:14px;font-size:14px;max-width:340px;}
.footer-testimonial .avatar{width:34px;height:34px;flex:0 0 auto;border-radius:999px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-weight:700;font-size:15px;}
.footer-testimonial b{color:var(--reverse);font-weight:600;}
.footer-col h4{font-size:13px;color:var(--reverse);letter-spacing:.08em;margin:0 0 18px;font-weight:700;}
.footer-col a{display:block;font-size:14.5px;padding:6px 0;color:rgba(244,241,234,.7);transition:color .2s,transform .2s;}
.footer-col a:hover{color:var(--lime);transform:translateX(2px);}
.footer-contact li{list-style:none;font-size:14.5px;padding:6px 0;}
.footer-contact li span{display:block;font-size:12.5px;color:rgba(244,241,234,.5);}
.footer-contact li b{font-family:var(--font-num);color:var(--reverse);font-weight:600;letter-spacing:.02em;}
.qr-slot{margin-top:16px;width:96px;height:96px;border-radius:12px;border:1px dashed rgba(244,241,234,.28);display:grid;place-items:center;font-size:12px;color:rgba(244,241,234,.5);text-align:center;line-height:1.4;}
.footer-divider{height:1px;background:rgba(244,241,234,.14);margin:44px 0 24px;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:rgba(244,241,234,.55);padding-bottom:32px;}
.footer-bottom a{color:rgba(244,241,234,.7);}
.footer-bottom a:hover{color:var(--lime);}

/* 返回顶部 */
.to-top{position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:999px;background:var(--ink);color:var(--lime);display:grid;place-items:center;z-index:45;opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease;transform:translateY(8px);}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.to-top:hover{background:#26262b;}

/* 进场动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
.reveal.in{opacity:1;transform:none;}

@media (max-width:1024px){
  .nav-left,.nav-right{display:none;}
  .header-inner{grid-template-columns:44px 1fr 44px;height:64px;}
  .icon-home{display:inline-flex;}
  .menu-toggle{display:inline-flex;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-media img{aspect-ratio:16/10;}
  .scene-grid{grid-template-columns:1fr;gap:32px;}
  .compare-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .stat-band{grid-template-columns:1fr;padding:32px;gap:22px;}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid rgba(244,241,234,.16);padding-top:20px;}
  .stat-item:first-child{border-top:0;padding-top:0;}
  .cta-block{grid-template-columns:1fr;padding:36px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:80px 0;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .page-hero{padding:52px 0 48px;}
  .hero-metrics{gap:24px;padding-top:22px;}
  .metric-num{font-size:22px;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-block{padding:26px;}
  .cta-form{padding:22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .topbar .container{font-size:13px;padding-right:44px;}
}
@media (max-width:520px){
  .logo{font-size:18px;}
  .hero-actions{gap:14px;}
  .hero-actions .btn{width:100%;}
  .compare-card{padding:26px 22px;}
  .faq-answer{padding-right:8px;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}