/* roulang page: index */
:root{
  --brand-500:#FF5B29;
  --brand-600:#D93B0F;
  --brand-300:#FF9A3C;
  --accent-400:#FFD24D;
  --jade-900:#0F3D34;
  --jade-700:#1C5C4E;
  --bg-page:#FAF7F3;
  --surface:#FFFFFF;
  --surface-tint:#FFF1EA;
  --ink:#14211F;
  --ink-muted:#5C6B68;
  --line:#E9E3DC;
  --shadow-sm:0 1px 2px rgba(20,33,31,.06);
  --shadow-md:0 8px 24px -6px rgba(20,33,31,.12);
  --shadow-brand:0 20px 40px -16px rgba(217,59,15,.28);
  --r-card:20px;
  --r-lg:28px;
  --nav-w:256px;
  --font-cn:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-500);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 布局外壳 ---------- */
.shell{margin-left:var(--nav-w);min-height:100vh;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.sec-title{font-size:clamp(24px,2.6vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em;}
.sec-title .hl{color:var(--brand-600);}
.sec-desc{margin-top:12px;color:var(--ink-muted);font-size:16px;max-width:640px;}
.link-more{font-size:14px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px;padding-bottom:4px;border-bottom:1.5px solid transparent;}
.link-more:hover{border-color:var(--brand-500);}

/* ---------- 左侧主导航 ---------- */
.sidenav{
  position:fixed;left:0;top:0;bottom:0;width:var(--nav-w);
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:26px 20px;z-index:60;
}
.brand{display:flex;align-items:center;gap:12px;padding:0 6px 22px;border-bottom:1px solid var(--line);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-300));
  position:relative;overflow:hidden;
  box-shadow:var(--shadow-brand);
}
.brand-mark::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.55) 0 4px,transparent 4px 11px);
}
.brand-text{font-size:17px;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.side-links{margin-top:26px;display:flex;flex-direction:column;gap:6px;}
.nav-item{
  position:relative;display:flex;align-items:center;height:44px;padding:0 14px;
  border-radius:12px;font-size:15px;font-weight:500;color:var(--ink-muted);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-item::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:4px;border-radius:0 4px 4px 0;
  background:linear-gradient(180deg,var(--brand-500),var(--brand-300));opacity:0;transition:opacity .2s ease;
}
.nav-item:hover{background:var(--surface-tint);color:var(--ink);transform:translateX(2px);}
.nav-item.active{background:var(--surface-tint);color:var(--brand-600);font-weight:600;}
.nav-item.active::before{opacity:1;}
.side-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line);}
.side-foot .btn{width:100%;}
.side-tel{margin-top:14px;font-size:13px;line-height:1.7;color:var(--ink-muted);}
.side-tel strong{display:block;color:var(--ink);font-size:15px;font-weight:600;}

/* ---------- 移动端导航 ---------- */
.mnav{
  display:none;position:sticky;top:0;z-index:70;height:60px;
  align-items:center;justify-content:space-between;padding:0 18px;
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.mnav .brand{padding:0;border:0;}
.mnav .brand-text{font-size:16px;}
.mnav .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s ease,opacity .25s ease;}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.open span:nth-child(2){opacity:0;}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer{
  position:fixed;inset:60px 0 0 0;z-index:65;background:var(--surface);
  padding:22px 20px 32px;display:none;flex-direction:column;overflow-y:auto;
}
.drawer.open{display:flex;}
.drawer .nav-item{height:48px;font-size:16px;}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background .3s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--brand-500),var(--brand-300));color:#fff;box-shadow:var(--shadow-brand);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);background:linear-gradient(160deg,var(--brand-500),var(--brand-300));}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94);}
.btn-ghost{background:var(--surface);border-color:var(--brand-500);color:var(--brand-600);}
.btn-ghost:hover{background:var(--surface-tint);color:var(--brand-600);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 480px at 88% -10%,rgba(255,91,41,.20),transparent 68%),
    linear-gradient(180deg,#FFF6F0 0%,var(--bg-page) 72%);
  padding:88px 0 76px;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:repeating-linear-gradient(135deg,rgba(255,91,41,.12) 0 10px,transparent 10px 28px);
  opacity:.6;mask-image:linear-gradient(180deg,transparent,#000);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 16px;border-radius:999px;
  background:var(--surface-tint);color:var(--brand-600);font-size:13px;font-weight:600;letter-spacing:.04em;
}
.hero h1{
  margin-top:22px;font-size:clamp(30px,4.4vw,52px);line-height:1.15;font-weight:700;letter-spacing:-.02em;
}
.hero-sub{margin-top:18px;font-size:17px;color:var(--ink-muted);max-width:520px;}
.hero-cta{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-stats{margin-top:36px;display:flex;gap:12px;flex-wrap:wrap;}
.badge-stat{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 16px;border-radius:999px;
  background:var(--surface-tint);color:var(--brand-600);font-size:13.5px;font-weight:500;
  border:1px solid rgba(255,154,60,.35);
}
.badge-stat strong{font-size:16px;font-weight:700;color:#B93A0B;font-variant-numeric:tabular-nums;}
.hero-visual{position:relative;}
.hero-visual .frame{
  border-radius:var(--r-lg);overflow:hidden;position:relative;
  border:1px solid rgba(255,154,60,.5);
  box-shadow:0 30px 60px -30px rgba(217,59,15,.45);
  background:var(--surface);
}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-visual .tag-float{
  position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.94);
  border-radius:999px;padding:9px 18px;font-size:13.5px;font-weight:600;color:var(--brand-600);
  box-shadow:var(--shadow-md);
}

/* ---------- 快捷入口 ---------- */
.quick{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.quick-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 30px;display:flex;gap:20px;align-items:flex-start;
  box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,154,60,.55);}
.quick-icon{
  width:52px;height:52px;flex:0 0 52px;border-radius:16px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-300));color:#fff;font-size:19px;font-weight:700;
}
.quick-card h3{font-size:19px;font-weight:600;}
.quick-card p{margin-top:8px;font-size:14.5px;color:var(--ink-muted);}
.quick-card .go{margin-top:14px;display:inline-flex;font-size:14px;font-weight:600;color:var(--brand-600);gap:6px;}

/* ---------- 优惠阶梯 ---------- */
.ladder-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;align-items:start;}
.ladder-card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.ladder-card:nth-child(1){margin-top:0;}
.ladder-card:nth-child(2){margin-top:16px;}
.ladder-card:nth-child(3){margin-top:32px;}
.ladder-card:nth-child(4){margin-top:48px;}
.ladder-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.ladder-card .idx{
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--brand-600);
  background:var(--surface-tint);border-radius:999px;padding:4px 12px;display:inline-block;
}
.ladder-card h3{margin-top:16px;font-size:20px;font-weight:600;}
.ladder-card .gate{margin-top:8px;font-size:13.5px;color:var(--ink-muted);}
.ladder-card ul{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.ladder-card li{position:relative;padding-left:20px;font-size:14.5px;color:var(--ink);}
.ladder-card li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-300));
}
.ladder-card .go{margin-top:auto;padding-top:22px;font-size:14px;font-weight:600;color:var(--brand-600);}
.ladder-card.featured{border:1.5px solid var(--brand-500);box-shadow:var(--shadow-brand);}
.flag{
  position:absolute;top:-13px;right:20px;height:26px;padding:0 14px;border-radius:999px;
  background:var(--accent-400);color:#7A3A00;font-size:12.5px;font-weight:700;
  display:inline-flex;align-items:center;
}

/* ---------- 套餐对比 ---------- */
.compare{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:8px;box-shadow:var(--shadow-sm);}
.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;}
.plan{
  border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;background:var(--surface);
  display:flex;flex-direction:column;transition:box-shadow .25s ease,transform .25s ease;
}
.plan:hover{box-shadow:var(--shadow-md);}
.plan-head{border-radius:16px;padding:22px 20px;background:linear-gradient(160deg,var(--surface-tint),#fff);border:1px solid rgba(255,154,60,.35);}
.plan-name{font-size:16px;font-weight:600;color:var(--brand-600);}
.plan-price{margin-top:10px;font-size:38px;line-height:1.1;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums;}
.plan-price span{font-size:14px;font-weight:500;color:var(--ink-muted);margin-left:6px;}
.plan-body{margin-top:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.plan-row{display:flex;justify-content:space-between;gap:14px;font-size:14.5px;padding-bottom:12px;border-bottom:1px dashed var(--line);}
.plan-row:last-child{border-bottom:0;}
.plan-row .k{color:var(--ink-muted);}
.plan-row .v{font-weight:600;text-align:right;}
.plan-row .v.off{color:#B6B0A8;font-weight:500;}
.plan .btn{margin-top:22px;width:100%;}
.plan.recommend{transform:translateY(-8px);border:1.5px solid var(--brand-500);box-shadow:var(--shadow-brand);position:relative;}
.plan.recommend .flag{top:-14px;right:18px;}
.compare-scroll{overflow-x:auto;padding-bottom:6px;}

/* ---------- 限时横幅 ---------- */
.ribbon{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  min-height:132px;display:flex;align-items:center;gap:28px;padding:28px 36px;
  background:linear-gradient(90deg,rgba(20,33,31,.92),rgba(217,59,15,.78)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;
}
.ribbon-copy{flex:1;min-width:220px;}
.ribbon-copy h3{font-size:clamp(19px,2vw,26px);font-weight:700;line-height:1.35;}
.ribbon-copy p{margin-top:6px;font-size:14.5px;color:rgba(255,255,255,.82);}
.countdown{display:flex;align-items:center;gap:10px;font-variant-numeric:tabular-nums;}
.cd-cell{
  min-width:60px;text-align:center;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  border-radius:14px;padding:8px 10px;
}
.cd-cell b{display:block;font-size:24px;font-weight:700;color:var(--accent-400);line-height:1.2;}
.cd-cell i{font-style:normal;font-size:12px;color:rgba(255,255,255,.75);}
.ribbon .btn{flex:0 0 auto;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.news-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--brand-500),var(--brand-300));opacity:0;transition:opacity .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.news-card:hover::before{opacity:1;}
.news-thumb{overflow:hidden;background:var(--surface-tint);}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.chip{
  align-self:flex-start;display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--surface-tint);color:var(--brand-600);font-size:12.5px;font-weight:600;
}
.news-body h3{margin-top:14px;font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{margin-top:10px;font-size:14.5px;color:var(--ink-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-muted);}
.news-foot .arrow{color:var(--brand-600);font-weight:600;}
.empty-state{
  grid-column:1 / -1;border:1.5px dashed rgba(255,154,60,.6);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;background:var(--surface);
}
.empty-state .ic{
  width:56px;height:56px;border-radius:16px;margin:0 auto 16px;display:grid;place-items:center;
  background:var(--surface-tint);color:var(--brand-600);font-size:24px;font-weight:700;
}
.empty-state p{color:var(--ink-muted);font-size:15px;}
.empty-state .btn{margin-top:20px;}

/* ---------- 数据与口碑 ---------- */
.proof{background:var(--jade-900);color:#fff;border-radius:var(--r-lg);padding:52px 48px;position:relative;overflow:hidden;}
.proof::after{
  content:"";position:absolute;right:-80px;top:-80px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,91,41,.32),transparent 70%);
}
.proof-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 1fr;gap:52px;align-items:center;}
.proof h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.3;}
.proof p.lead{margin-top:14px;font-size:15px;color:rgba(255,255,255,.78);}
.proof-stats{margin-top:32px;display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.proof-stat{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:18px;}
.proof-stat b{display:block;font-size:28px;font-weight:700;color:var(--accent-400);font-variant-numeric:tabular-nums;}
.proof-stat span{font-size:13px;color:rgba(255,255,255,.75);}
.quotes{display:flex;flex-direction:column;gap:16px;}
.quote{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:18px;padding:22px 24px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.9);
}
.quote .who{margin-top:12px;font-size:13px;color:var(--accent-400);}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;padding:22px 40px 22px 16px;
  font-size:17px;font-weight:600;display:flex;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:500;color:var(--brand-500);line-height:1;
}
.faq-item[open] summary::after{content:"−";}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand-500),var(--brand-300));
}
.faq-item summary:hover{color:var(--brand-600);}
.faq-answer{padding:0 40px 24px 16px;font-size:15px;line-height:1.85;color:var(--ink-muted);}

/* ---------- 咨询表单 ---------- */
.consult{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start;}
.consult-points{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.consult-points li{position:relative;padding-left:22px;font-size:15px;color:var(--ink-muted);}
.consult-points li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-300));
}
.consult-meta{margin-top:30px;padding:20px 22px;border-radius:16px;background:var(--surface-tint);border:1px solid rgba(255,154,60,.4);}
.consult-meta strong{display:block;font-size:20px;font-weight:700;color:var(--brand-600);font-variant-numeric:tabular-nums;}
.consult-meta span{font-size:13.5px;color:var(--ink-muted);}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:34px;box-shadow:var(--shadow-md);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.field label .req{color:var(--brand-500);margin-left:4px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:14px;background:#FDFBF9;
  padding:13px 16px;font-size:15px;box-shadow:inset 0 1px 2px rgba(20,33,31,.04);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:110px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);background:#fff;
  box-shadow:0 0 0 3px rgba(255,154,60,.28);
}
.field .tip{font-size:13px;color:var(--ink-muted);margin-top:6px;}
.form-msg{
  display:none;margin-bottom:18px;border-radius:14px;padding:13px 16px;font-size:14px;
}
.form-msg.show{display:block;}
.form-msg.ok{background:#EAF9F0;border:1px solid #12A150;color:#0B7A3B;}
.form-msg.err{background:#FFF0EC;border:1px solid var(--brand-600);color:var(--brand-600);}
.form-card .btn{width:100%;}

/* ---------- 收尾 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(120deg,var(--jade-900),var(--jade-700));
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:28px;color:#fff;
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:6px;
  background:linear-gradient(90deg,var(--brand-500),var(--brand-300));
}
.cta-band h2{font-size:clamp(21px,2.3vw,30px);font-weight:700;line-height:1.35;}
.cta-band p{margin-top:8px;font-size:14.5px;color:rgba(255,255,255,.8);}

/* ---------- 页脚 ---------- */
.footer{
  position:relative;background:var(--jade-900);color:rgba(255,255,255,.78);margin-top:96px;overflow:hidden;
}
.footer::before{
  content:"";position:absolute;left:-10%;top:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,91,41,.22),transparent 70%);
}
.footer-inner{position:relative;z-index:2;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand span.txt{font-size:17px;font-weight:700;color:#fff;}
.footer p.about{font-size:14px;line-height:1.85;max-width:330px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.78);}
.footer-links a:hover{color:var(--brand-300);}
.footer-contact li{font-size:14px;line-height:1.9;}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-bottom{
  position:relative;z-index:2;margin-top:56px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.62);flex-wrap:wrap;
}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:var(--brand-300);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .sidenav{display:none;}
  .mnav{display:flex;}
  .shell{margin-left:0;}
  .container{padding:0 22px;}
  .section{padding:64px 0;}
  .hero{padding:56px 0 48px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:-1;}
  .quick{grid-template-columns:1fr;}
  .ladder-grid{grid-template-columns:repeat(2,1fr);}
  .ladder-card:nth-child(1),.ladder-card:nth-child(2),.ladder-card:nth-child(3),.ladder-card:nth-child(4){margin-top:0;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .proof{padding:40px 28px;}
  .proof-grid{grid-template-columns:1fr;gap:32px;}
  .consult{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px;}
}
@media (max-width:768px){
  .compare-grid{grid-template-columns:minmax(260px,1fr);}
  .compare-scroll{overflow-x:auto;}
  .compare-grid{display:flex;gap:14px;}
  .plan{min-width:268px;}
  .plan.recommend{transform:none;}
  .ribbon{flex-direction:column;align-items:flex-start;padding:26px 22px;gap:18px;}
  .ribbon .btn{width:100%;}
  .countdown{width:100%;}
  .cd-cell{flex:1;}
  .news-grid{grid-template-columns:1fr;}
  .form-card{padding:24px;}
}
@media (max-width:520px){
  .section{padding:52px 0;}
  .hero h1{font-size:28px;}
  .hero-stats{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;}
  .badge-stat{flex:0 0 auto;}
  .ladder-grid{grid-template-columns:1fr;}
  .proof-stats{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-item summary{padding-right:34px;font-size:16px;}
  .faq-answer{padding-right:8px;}
  .cta-band h2{font-size:20px;}
}

/* roulang page: article */
:root{
  --brand-500:#FF5B29;
  --brand-600:#D93B0F;
  --brand-300:#FF9A3C;
  --accent-400:#FFD24D;
  --jade-900:#0F3D34;
  --jade-700:#1C5C4E;
  --bg-page:#FAF7F3;
  --surface:#FFFFFF;
  --surface-tint:#FFF1EA;
  --ink:#14211F;
  --ink-muted:#5C6B68;
  --line:#E9E3DC;
  --radius-card:20px;
  --radius-lg:28px;
  --radius-input:14px;
  --shadow-sm:0 1px 2px rgba(20,33,31,.06);
  --shadow-md:0 8px 24px -6px rgba(20,33,31,.12);
  --shadow-brand:0 20px 40px -16px rgba(217,59,15,.28);
  --sidebar-w:256px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
.site-body{
  margin:0;
  background:var(--bg-page);
  color:var(--ink);
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500)}
button{font:inherit}
h1,h2,h3,h4{margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 布局骨架 ---------- */
.layout{display:flex;align-items:flex-start;min-height:100vh}
.sidebar{
  position:sticky;top:0;flex:0 0 var(--sidebar-w);width:var(--sidebar-w);height:100vh;
  background:var(--surface);border-right:1px solid var(--line);
  padding:26px 18px 20px;display:flex;flex-direction:column;gap:26px;z-index:40;
}
.main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}

/* ---------- 品牌 ---------- */
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  position:relative;overflow:hidden;flex:0 0 34px;width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-300));
  box-shadow:0 6px 14px -6px rgba(217,59,15,.6);
}
.brand-mark::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.6) 0 2px,transparent 2px 7px);
}
.brand .txt{font-size:17px;font-weight:700;color:var(--ink);line-height:1.25;letter-spacing:.2px}

/* ---------- 侧栏导航 ---------- */
.nav-label{font-size:12px;letter-spacing:.16em;color:var(--ink-muted);padding-left:14px;margin-bottom:10px}
.side-links{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;display:flex;align-items:center;height:44px;padding:0 14px;border-radius:12px;
  font-size:15px;color:#33413e;transition:background .22s ease,color .22s ease,transform .22s ease;
}
.nav-item:hover{background:var(--surface-tint);color:var(--brand-600);transform:translateX(2px)}
.nav-item:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.nav-item.active{background:var(--surface-tint);color:var(--brand-600);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand-500),var(--brand-300));
}
.side-cta{
  margin-top:auto;padding:18px;border-radius:18px;background:var(--surface-tint);
  border:1px solid #FFD9C8;
}
.side-cta strong{display:block;font-size:15px;color:var(--ink)}
.side-cta span{display:block;font-size:13px;color:var(--ink-muted);margin:4px 0 12px}
.side-cta a{
  display:flex;align-items:center;justify-content:center;gap:8px;height:44px;border-radius:999px;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-300));color:#fff;font-weight:600;font-size:15px;
  box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease;
}
.side-cta a:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-brand)}

/* ---------- 移动端头部与抽屉 ---------- */
.mobile-header{
  display:none;align-items:center;justify-content:space-between;height:60px;padding:0 18px;
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:60;
}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--ink);cursor:pointer;
}
.burger:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.drawer{
  position:fixed;inset:0;background:rgba(250,247,243,.98);backdrop-filter:blur(6px);
  padding:84px 22px 28px;display:flex;flex-direction:column;gap:8px;z-index:55;
  transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .24s ease,transform .24s ease;
}
.drawer.open{opacity:1;transform:translateY(0);pointer-events:auto}
.drawer .nav-item{height:52px;border-radius:14px;background:#fff;border:1px solid var(--line);font-size:16px}
.drawer .drawer-cta{
  margin-top:auto;display:flex;align-items:center;justify-content:center;height:50px;border-radius:999px;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-300));color:#fff;font-weight:600;
}
.drawer .drawer-cta:hover{color:#fff}
.drawer-close{
  position:absolute;top:16px;right:18px;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;
}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background:linear-gradient(135deg,#FFF1EA 0%,#FAF7F3 62%);
  padding:40px 0 34px;
}
.page-head::before{
  content:"";position:absolute;left:0;right:0;bottom:0;height:6px;
  background-image:repeating-linear-gradient(115deg,rgba(255,91,41,.35) 0 10px,transparent 10px 26px);
  opacity:.5;
}
.page-head::after{
  content:"";position:absolute;right:-90px;top:-110px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,91,41,.22),rgba(255,91,41,0) 70%);
}
.page-head .container{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-muted);margin-bottom:16px}
.crumbs a{color:var(--ink-muted)}
.crumbs a:hover{color:var(--brand-500)}
.crumbs .sep{color:#C9C1B8}
.crumbs .now{color:var(--brand-600);font-weight:600;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-title{
  font-size:clamp(26px,3vw,40px);line-height:1.3;font-weight:700;letter-spacing:.2px;
  max-width:860px;color:var(--ink);
}
.page-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:13px;color:var(--ink-muted)}
.page-meta .pill{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:999px;
  background:var(--surface-tint);color:var(--brand-600);font-weight:600;font-size:13px;
}
.page-meta .dot{width:4px;height:4px;border-radius:50%;background:#CCC3B9}

/* ---------- 正文区 ---------- */
.article-shell{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start;
  padding:52px 0 72px;
}
.article-main{min-width:0}
.article-body{
  max-width:860px;font-size:17px;line-height:1.9;color:#26332F;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 36px;box-shadow:var(--shadow-sm);
}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;font-size:24px;line-height:1.4;font-weight:700;color:var(--ink);
  margin:40px 0 16px;padding-left:16px;
}
.article-body h2:first-child{margin-top:0}
.article-body h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand-500),var(--brand-300));
}
.article-body h3{font-size:20px;font-weight:600;margin:28px 0 12px;color:var(--ink)}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:6px}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:9px}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;
  background:var(--brand-500);
}
.article-body ol{counter-reset:li;padding-left:0}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:9px;counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;
  background:var(--surface-tint);color:var(--brand-600);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  position:relative;margin:24px 0;padding:18px 22px 18px 26px;border-radius:var(--radius-card);
  background:var(--surface-tint);color:#3D4A47;
}
.article-body blockquote::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand-500),var(--brand-300));
}
.article-body img{margin:22px 0 10px;border-radius:16px;width:100%;height:auto;box-shadow:var(--shadow-sm)}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--ink-muted);text-align:center;line-height:1.6}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-500)}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body thead th{background:var(--surface-tint);color:var(--brand-600);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FCFAF7}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:28px 0}
.empty-state{
  max-width:860px;border:1.5px dashed #E3D6CB;border-radius:var(--radius-lg);
  background:var(--surface);padding:56px 28px;text-align:center;box-shadow:var(--shadow-sm);
}
.empty-state i{font-size:34px;color:var(--brand-300)}
.empty-state h2{font-size:22px;margin:16px 0 8px;font-weight:700}
.empty-state p{color:var(--ink-muted);margin-bottom:22px}

/* ---------- 侧栏组件 ---------- */
.article-side{position:sticky;top:24px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-sm);
}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px}
.rank-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line)}
.rank-list li:last-child{border-bottom:0;padding-bottom:0}
.rank-list .no{
  flex:0 0 24px;height:24px;border-radius:8px;background:var(--surface-tint);color:var(--brand-600);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.rank-list .no.top{background:linear-gradient(135deg,var(--brand-500),var(--brand-300));color:#fff}
.rank-list a{font-size:14px;line-height:1.55;color:#2C3936;display:block}
.rank-list a:hover{color:var(--brand-500)}
.side-contact{background:linear-gradient(160deg,#0F3D34,#1C5C4E);border:0;color:#DCEAE5}
.side-contact h3{color:#fff}
.side-contact p{font-size:13.5px;line-height:1.7;color:#B9D2CA;margin-bottom:14px}
.side-contact .tel{font-size:19px;font-weight:700;color:var(--accent-400);letter-spacing:.5px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;
  border-radius:999px;font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,var(--brand-500),var(--brand-300));color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-brand)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.96)}
.btn-ghost{background:#fff;border-color:var(--brand-500);color:var(--brand-600)}
.btn-ghost:hover{background:var(--surface-tint);color:var(--brand-600)}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 76px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.3}
.section-head p{font-size:14px;color:var(--ink-muted);margin-top:6px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.rel-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--brand-500),var(--brand-300));
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.rel-card:hover::before{transform:scaleX(1)}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#F2EDE6}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-thumb .tag{
  position:absolute;left:12px;top:12px;height:28px;padding:0 12px;border-radius:999px;
  background:rgba(255,241,234,.94);color:var(--brand-600);font-size:12px;font-weight:600;
  display:inline-flex;align-items:center;
}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:16.5px;font-weight:600;line-height:1.5;color:var(--ink)}
.rel-body p{font-size:14px;color:var(--ink-muted);line-height:1.7}
.rel-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:13px;color:var(--ink-muted)}
.rel-foot i{color:var(--brand-500);transition:transform .22s ease}
.rel-card:hover .rel-foot i{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-section{padding:0 0 76px}
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:6px 26px;box-shadow:var(--shadow-sm)}
.faq-item{border-bottom:1px dashed var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px}
.faq-ico{
  flex:0 0 26px;height:26px;border-radius:50%;background:var(--surface-tint);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
}
.faq-item[open] summary{color:var(--brand-600)}
.faq-item[open] .faq-ico{background:linear-gradient(135deg,var(--brand-500),var(--brand-300));color:#fff}
.faq-body{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--ink-muted);max-width:860px}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--jade-900);color:#fff;border-radius:var(--radius-lg);padding:34px 36px}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,91,41,.42),rgba(255,91,41,0) 70%);
}
.cta-band .inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:22px}
.cta-band h2{font-size:22px;font-weight:700}
.cta-band p{font-size:14px;color:#B9D2CA;margin-top:6px}
.cta-wrap{padding:0 0 84px}

/* ---------- 页脚 ---------- */
.footer{position:relative;overflow:hidden;background:var(--jade-900);color:#D6E4E0;margin-top:auto}
.footer::after{
  content:"";position:absolute;left:50%;top:-160px;width:520px;height:320px;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(255,91,41,.20),rgba(255,91,41,0) 70%);
}
.footer-inner{position:relative;z-index:1;padding:56px 24px 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand .txt{font-size:17px;font-weight:700;color:#fff}
.footer .about{font-size:13.5px;line-height:1.85;color:#A9C2BB;max-width:340px}
.footer h4{font-size:14px;color:#fff;margin-bottom:14px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#C3D6D1}
.footer-links a:hover{color:var(--brand-300)}
.footer-contact li{font-size:14px;color:#C3D6D1;line-height:1.95}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#9FB9B2;
}
.footer-bottom a{color:#C3D6D1}
.footer-bottom a:hover{color:var(--brand-300)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-shell{grid-template-columns:minmax(0,1fr) 300px;gap:28px}
}
@media (max-width:1023px){
  .layout{display:block}
  .sidebar{display:none}
  .mobile-header{display:flex}
  .article-shell{grid-template-columns:1fr;padding:36px 0 56px}
  .article-side{position:static}
  .article-body{padding:26px 22px;border-radius:var(--radius-card)}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .page-head{padding:28px 0 26px}
  .article-shell{padding:28px 0 48px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px}
  .section-head{flex-direction:column;align-items:flex-start}
  .rel-grid{display:flex;overflow-x:auto;gap:16px;padding-bottom:8px;scroll-snap-type:x mandatory}
  .rel-grid .rel-card{flex:0 0 78%;scroll-snap-align:start}
  .cta-band{padding:26px 22px}
  .cta-band .inner{flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
  .faq-list{padding:4px 18px}
  .faq-item summary{font-size:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-inner{padding:44px 24px 22px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .page-title{font-size:24px}
  .rel-grid .rel-card{flex:0 0 88%}
}

/* roulang page: category1 */
:root{
  --brand-500:#FF5B29;
  --brand-600:#D93B0F;
  --brand-300:#FF9A3C;
  --accent-400:#FFD24D;
  --jade-900:#0F3D34;
  --jade-700:#1C5C4E;
  --bg-page:#FAF7F3;
  --surface:#FFFFFF;
  --surface-tint:#FFF1EA;
  --ink:#14211F;
  --ink-muted:#5C6B68;
  --line:#E9E3DC;
  --radius-card:20px;
  --radius-lg:28px;
  --shadow-sm:0 1px 2px rgba(20,33,31,.06);
  --shadow-md:0 8px 24px -6px rgba(20,33,31,.12);
  --shadow-brand:0 20px 40px -16px rgba(217,59,15,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s,text-decoration-color .2s}
a:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px}
button{font:inherit;color:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(30px,4.4vw,52px);line-height:1.15;font-weight:700;letter-spacing:-.5px}
h2{font-size:clamp(24px,2.6vw,36px);line-height:1.25;font-weight:700}
h3{font-size:20px;line-height:1.4;font-weight:600}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 布局骨架 ---------- */
.app{display:flex;min-height:100vh;align-items:flex-start}
.sidebar{
  flex:0 0 256px;width:256px;height:100vh;position:sticky;top:0;
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:24px 16px;
  overflow-y:auto;z-index:40;
}
.main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 品牌 ---------- */
.brand{display:flex;align-items:center;gap:10px;padding:6px 8px 0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-300));
  box-shadow:var(--shadow-brand);
}
.brand-mark::after{
  content:"";position:absolute;inset:-6px;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.6) 0 2px,transparent 2px 8px);
}
.brand .txt{font-size:17px;font-weight:700;line-height:1.25;letter-spacing:-.2px}

/* ---------- 侧栏导航 ---------- */
.side-links{display:flex;flex-direction:column;gap:6px;margin-top:28px}
.nav-item{
  display:flex;align-items:center;height:44px;padding:0 14px;border-radius:12px;
  font-size:15px;font-weight:600;color:var(--ink-muted);position:relative;
  transition:background .2s,transform .2s,color .2s;
}
.nav-item:hover{background:#FFF7F2;color:var(--ink);transform:translateX(2px);text-decoration:none}
.nav-item.active{background:var(--surface-tint);color:var(--brand-600)}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;border-radius:999px;
  background:linear-gradient(180deg,var(--brand-500),var(--brand-300));
}
.nav-item:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.side-foot{margin-top:auto;padding-top:24px}
.side-tip{
  border:1px dashed var(--line);border-radius:16px;padding:14px;background:#FFFBF8;
  font-size:13px;line-height:1.6;color:var(--ink-muted);
}
.side-tip strong{display:block;color:var(--ink);font-size:14px;margin-bottom:4px}
.side-cta{
  margin-top:12px;display:flex;align-items:center;justify-content:center;gap:8px;
  height:46px;border-radius:999px;font-size:14px;font-weight:600;color:var(--brand-600);
  background:linear-gradient(#fff,#fff) padding-box,
             linear-gradient(135deg,var(--brand-500),var(--brand-300)) border-box;
  border:1.5px solid transparent;
  transition:background .2s,transform .2s;
}
.side-cta:hover{background:var(--surface-tint);transform:translateY(-2px);text-decoration:none;color:var(--brand-600)}

/* ---------- 移动端顶部栏与抽屉 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:50;height:60px;align-items:center;justify-content:space-between;
  padding:0 16px;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.mobile-bar .brand{padding:0}
.burger{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.burger:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.drawer{
  position:fixed;inset:0;z-index:80;background:#fff;display:none;flex-direction:column;
  padding:20px;overflow-y:auto;
}
.drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;font-size:20px;line-height:1;
}
.drawer .side-links{margin-top:0}
.drawer-foot{margin-top:auto;padding-top:24px}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s;
}
.btn:hover{text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--brand-500),var(--brand-300));color:#fff;box-shadow:var(--shadow-brand)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);filter:saturate(1.06)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.95)}
.btn-outline{background:#fff;border-color:var(--brand-500);color:var(--brand-600)}
.btn-outline:hover{background:var(--surface-tint);color:var(--brand-600);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- 徽章 ---------- */
.badges{display:flex;flex-wrap:wrap;gap:10px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 14px;border-radius:999px;
  background:var(--surface-tint);color:var(--brand-600);font-size:13px;font-weight:600;
  border:1px solid #FFE0D2;
}
.badge b{color:#B45309;font-style:normal;font-variant-numeric:tabular-nums;font-size:14px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:var(--surface-tint);color:var(--brand-600);font-size:12.5px;font-weight:600;
  border:1px solid #FFE0D2;
}
.tag-plain{background:#F4F1ED;color:var(--ink-muted);border-color:var(--line)}

/* ---------- 页头 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;margin:28px 0 0;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,#FFF3EC 0%,#FAF7F3 100%);
  border:1px solid #F4E4DA;padding:44px 40px;
}
.page-hero::before{
  content:"";position:absolute;right:-60px;top:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,91,41,.28),transparent 68%);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:56px;opacity:.5;
  background:repeating-linear-gradient(115deg,rgba(255,91,41,.12) 0 2px,transparent 2px 12px);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}
.breadcrumb{display:flex;gap:8px;align-items:center;font-size:13.5px;color:var(--ink-muted);margin-bottom:14px}
.breadcrumb a:hover{color:var(--brand-500)}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--brand-600);
  text-transform:uppercase;margin-bottom:10px;
}
.hero-sub{margin-top:16px;font-size:18px;color:var(--ink-muted);max-width:30ch;line-height:1.7}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px}
.hero-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:16/10;box-shadow:var(--shadow-md);border:1px solid #F4E4DA}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-lg);
  box-shadow:inset 0 0 0 2px rgba(255,154,60,.55);
}

/* ---------- 关注维度标签条 ---------- */
.chip-bar{display:flex;gap:10px;overflow-x:auto;padding:28px 0 4px;scrollbar-width:thin}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:999px;
  border:1.5px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--ink-muted);
  transition:all .2s;
}
.chip:hover{border-color:var(--brand-300);color:var(--brand-600);background:var(--surface-tint);text-decoration:none}
.chip.active{
  background:linear-gradient(135deg,var(--brand-500),var(--brand-300));color:#fff;border-color:transparent;
  box-shadow:var(--shadow-brand);
}
.chip.active:hover{color:#fff}
.chip:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}

/* ---------- 板块 ---------- */
.section{padding:72px 0 0}
.section-head{max-width:720px;margin-bottom:34px}
.section-head .kicker{font-size:13px;font-weight:700;letter-spacing:2px;color:var(--brand-600);margin-bottom:10px}
.section-head p{margin-top:12px;color:var(--ink-muted)}

/* ---------- 阶梯卡 ---------- */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.ladder-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.ladder-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#F2D6C8}
.ladder-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--brand-500),var(--brand-300));opacity:0;transition:opacity .25s;
}
.ladder-card:hover::before{opacity:1}
.ladder-card.hot{background:linear-gradient(180deg,#FFF7F2,#fff 46%);border-color:#FFD9C6;box-shadow:var(--shadow-brand)}
.ladder-card.hot::before{opacity:1}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:14px;
  background:var(--surface-tint);color:var(--brand-600);font-weight:700;font-variant-numeric:tabular-nums;
  border:1px solid #FFE0D2;margin-bottom:16px;
}
.step-no.solid{background:linear-gradient(135deg,var(--brand-500),var(--brand-300));color:#fff;border-color:transparent}
.ladder-card h3{margin-bottom:10px}
.ladder-card p{font-size:14.5px;color:var(--ink-muted);line-height:1.7}
.point-list{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.point-list li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-muted);line-height:1.6}
.point-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-300));
}
.reco{
  position:absolute;right:18px;top:18px;height:24px;padding:0 12px;border-radius:999px;
  background:var(--accent-400);color:#5B3A00;font-size:12px;font-weight:700;display:inline-flex;align-items:center;
}

/* ---------- 图文区块 ---------- */
.figure-row{
  display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);
}
.figure-media{border-radius:var(--radius-card);overflow:hidden;aspect-ratio:16/10;background:#F4F1ED}
.figure-media img{width:100%;height:100%;object-fit:cover}
.figure-cap{margin-top:10px;font-size:13px;color:var(--ink-muted)}
.figure-text h3{font-size:22px;margin-bottom:12px}
.figure-text p{color:var(--ink-muted);font-size:15.5px;line-height:1.8}
.figure-text .badges{margin-top:18px}

/* ---------- 对照列 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare-col{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;
}
.compare-col:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.compare-col h3{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.compare-col .sub{font-size:14px;color:var(--ink-muted);margin-bottom:18px}
.dot-mark{width:12px;height:12px;border-radius:4px;background:linear-gradient(135deg,var(--brand-500),var(--brand-300))}
.compare-list{display:flex;flex-direction:column;gap:12px}
.compare-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.65;color:var(--ink-muted);align-items:flex-start}
.compare-list li .ico{flex:0 0 18px;font-weight:700;color:var(--brand-600)}
.compare-list li.off{color:#A9B2B0}
.compare-list li.off .ico{color:#C9D0CE}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;max-width:900px;margin:0 auto;padding-left:8px}
.timeline::before{
  content:"";position:absolute;left:25px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--brand-500),rgba(255,154,60,.25));
}
.tl-item{position:relative;display:flex;gap:24px;padding:0 0 30px}
.tl-item:last-child{padding-bottom:0}
.tl-node{
  flex:0 0 52px;width:52px;height:52px;border-radius:18px;position:relative;z-index:2;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;color:#fff;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-300));box-shadow:var(--shadow-brand);
}
.tl-body{
  flex:1 1 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s,border-color .25s;
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#F2D6C8}
.tl-body h3{margin-bottom:8px}
.tl-body p{font-size:15px;color:var(--ink-muted);line-height:1.8}
.tl-body .badges{margin-top:16px}

/* ---------- 深色数据区 ---------- */
.stats-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);color:#fff;
  background-image:linear-gradient(115deg,rgba(15,61,52,.96),rgba(28,92,78,.92)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;padding:56px 44px;margin-top:72px;
}
.stats-band::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,91,41,.5),transparent 68%);
}
.stats-head{position:relative;z-index:2;max-width:640px;margin-bottom:34px}
.stats-head h2{color:#fff}
.stats-head p{margin-top:12px;color:rgba(255,255,255,.78);font-size:15.5px}
.stats-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-card);
  padding:22px 20px;backdrop-filter:blur(2px);
}
.stat .val{
  font-size:32px;font-weight:700;color:var(--accent-400);line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat .val small{font-size:15px;font-weight:600;margin-left:4px;color:#fff;opacity:.85}
.stat .lab{margin-top:10px;font-size:14px;color:rgba(255,255,255,.8)}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 18px 22px 20px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);transition:color .2s,background .2s;
}
.faq-q:hover{color:var(--brand-600);background:#FFFBF8}
.faq-q:focus-visible{outline:2px solid var(--brand-500);outline-offset:-4px}
.faq-item::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:999px;
  background:linear-gradient(180deg,var(--brand-500),var(--brand-300));opacity:0;transition:opacity .2s;
}
.faq-item.open::before{opacity:1}
.faq-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:999px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--brand-600);
  transition:transform .25s,background .25s;
}
.faq-item.open .faq-icon{background:var(--surface-tint);transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 20px 24px 20px;font-size:15px;line-height:1.85;color:var(--ink-muted)}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);margin-top:72px;
  background:linear-gradient(115deg,var(--jade-900),var(--jade-700));
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;left:-30px;top:-40px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,91,41,.45),transparent 70%);
}
.cta-band h2{position:relative;z-index:2;color:#fff;font-size:clamp(20px,2vw,26px)}
.cta-band p{position:relative;z-index:2;color:rgba(255,255,255,.75);font-size:14.5px;margin-top:8px}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.footer{
  margin-top:88px;background:var(--jade-900);color:rgba(255,255,255,.78);position:relative;overflow:hidden;
}
.footer::before{
  content:"";position:absolute;right:-80px;top:-100px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,91,41,.28),transparent 70%);
}
.footer-inner{position:relative;z-index:2;padding-top:56px;padding-bottom:24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .txt{color:#fff;font-size:17px;font-weight:700}
.footer .about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:34ch}
.footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:var(--brand-300);text-decoration:none}
.footer-contact li{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72)}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{
  position:relative;z-index:2;margin-top:44px;padding:20px 0 4px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:var(--brand-300)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .ladder{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .mobile-bar{display:flex}
  .app{flex-direction:column}
  .container{padding:0 18px}
  .page-hero{padding:32px 24px;border-radius:22px}
  .hero-grid{grid-template-columns:1fr;gap:24px}
  .hero-sub{max-width:none;font-size:16.5px}
  .section{padding:56px 0 0}
  .figure-row{grid-template-columns:1fr;padding:20px}
  .stats-band{padding:40px 26px;margin-top:56px}
  .cta-band{margin-top:56px;padding:32px 26px}
  .footer{margin-top:64px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:16px}
  .compare{grid-template-columns:1fr}
  .ladder{grid-template-columns:1fr}
  .timeline{padding-left:0}
  .timeline::before{left:19px}
  .tl-item{gap:16px}
  .tl-node{flex:0 0 40px;width:40px;height:40px;border-radius:14px;font-size:13.5px}
  .tl-body{padding:18px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:14px}
  .stat{padding:18px 16px}
  .stat .val{font-size:26px}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:520px){
  .container{padding:0 14px}
  .page-hero{padding:26px 18px}
  .hero-actions .btn{width:100%}
  .stats-grid{grid-template-columns:1fr}
  .btn{height:46px;padding:0 20px}
  .faq-q{font-size:16px;padding:18px 12px 18px 16px}
  .faq-a p{padding:0 16px 20px 16px}
}

/* roulang page: category2 */
:root{
  --brand-500:#FF5B29;
  --brand-600:#D93B0F;
  --brand-300:#FF9A3C;
  --accent-400:#FFD24D;
  --jade-900:#0F3D34;
  --jade-700:#1C5C4E;
  --bg-page:#FAF7F3;
  --surface:#FFFFFF;
  --surface-tint:#FFF1EA;
  --ink:#14211F;
  --ink-muted:#5C6B68;
  --line:#E9E3DC;
  --grad:linear-gradient(135deg,#FF5B29 0%,#FF9A3C 100%);
  --shadow-sm:0 1px 2px rgba(20,33,31,.06);
  --shadow-md:0 8px 24px -6px rgba(20,33,31,.12);
  --shadow-brand:0 20px 40px -16px rgba(217,59,15,.28);
  --radius-card:20px;
  --radius-lg:28px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{margin:0;padding:0;background:var(--bg-page);color:var(--ink);font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-500);}
button{font-family:inherit;}
.shell{display:flex;min-height:100vh;background:var(--bg-page);color:var(--ink);font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;}
.num,.badge b,.tl-dot,.stat-num{font-variant-numeric:tabular-nums;}

/* 侧边栏 */
.sidebar{width:256px;flex:0 0 256px;height:100vh;position:sticky;top:0;background:var(--surface);border-right:1px solid var(--line);display:flex;flex-direction:column;gap:26px;padding:26px 16px 20px;overflow-y:auto;z-index:40;}
.side-brand{display:flex;align-items:center;gap:10px;padding:0 8px;}
.brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;background:var(--grad);position:relative;overflow:hidden;box-shadow:var(--shadow-brand);}
.brand-mark::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(255,255,255,.55) 0 3px,transparent 3px 9px);}
.side-brand .txt{font-size:17px;font-weight:700;letter-spacing:.2px;color:var(--ink);}
.side-links{display:flex;flex-direction:column;gap:6px;}
.nav-item{position:relative;display:flex;align-items:center;height:44px;padding:0 14px 0 18px;border-radius:12px;font-size:15px;font-weight:500;color:var(--ink);transition:background .2s ease,transform .2s ease,color .2s ease;}
.nav-item:hover{background:var(--surface-tint);color:var(--brand-600);transform:translateX(2px);}
.nav-item.active{background:var(--surface-tint);color:var(--brand-600);font-weight:600;}
.nav-item.active::before{content:"";position:absolute;left:0;top:11px;bottom:11px;width:4px;border-radius:999px;background:var(--grad);}
.side-cta{margin-top:auto;display:flex;flex-direction:column;gap:10px;}
.ghost-btn{display:flex;align-items:center;justify-content:center;height:46px;border-radius:999px;font-size:15px;font-weight:600;color:var(--brand-600);
  border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;transition:box-shadow .2s ease,transform .2s ease;}
.ghost-btn:hover{transform:translateY(-2px);box-shadow:0 12px 24px -14px rgba(217,59,15,.5);color:var(--brand-600);}
.side-phone{margin:0;font-size:13px;color:var(--ink-muted);text-align:center;}

/* 顶部移动导航 */
.topbar{display:none;position:sticky;top:0;z-index:60;height:60px;align-items:center;justify-content:space-between;padding:0 16px;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.topbar-brand{display:flex;align-items:center;gap:9px;font-size:16px;font-weight:700;color:var(--ink);}
.topbar-brand .brand-mark{width:28px;height:28px;flex:0 0 28px;border-radius:9px;}
.burger{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:19px;line-height:1;display:grid;place-items:center;cursor:pointer;transition:.2s;}
.burger:hover{border-color:var(--brand-500);color:var(--brand-600);}
.burger:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.drawer{position:fixed;left:0;right:0;top:60px;bottom:0;background:#fff;z-index:55;display:none;flex-direction:column;gap:8px;padding:20px 18px;overflow-y:auto;}
.drawer.open{display:flex;}
.drawer .nav-item{height:48px;font-size:16px;}
.drawer-cta{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px;}

.main{flex:1;min-width:0;display:flex;flex-direction:column;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* 通用 */
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:var(--surface-tint);color:var(--brand-600);font-size:13px;font-weight:600;letter-spacing:.4px;}
.section{padding:92px 0;}
.section-alt{background:var(--surface);}
.section-head{max-width:760px;margin:0 auto 48px;text-align:center;}
.h2{font-size:clamp(24px,2.6vw,36px);line-height:1.25;font-weight:700;margin:16px 0 12px;color:var(--ink);}
.h3{font-size:21px;line-height:1.4;font-weight:600;margin:0 0 10px;color:var(--ink);}
.lead{font-size:16px;line-height:1.8;color:var(--ink-muted);margin:0;}
.badges{display:flex;flex-wrap:wrap;gap:10px;}
.badge{display:inline-flex;align-items:center;gap:6px;min-height:30px;padding:5px 14px;border-radius:999px;background:var(--surface-tint);color:var(--brand-600);font-size:13px;font-weight:600;border:1px solid rgba(255,91,41,.14);}
.badge b{color:var(--brand-600);font-weight:700;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;border:0;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 24px -14px rgba(217,59,15,.65);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-brand);color:#fff;}
.btn-primary:active{transform:translateY(1px);filter:brightness(.96);}
.btn-outline{background:#fff;border:1.5px solid var(--brand-500);color:var(--brand-600);}
.btn-outline:hover{background:var(--surface-tint);color:var(--brand-600);}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}

/* 页头 */
.page-hero{position:relative;overflow:hidden;padding:56px 0 60px;background:linear-gradient(180deg,#FFE8DA 0%,#FDF3EC 55%,var(--bg-page) 100%);}
.page-hero::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;opacity:.16;}
.hero-track{position:absolute;left:-60px;top:-40px;width:340px;height:360px;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(255,91,41,.22) 0 7px,transparent 7px 20px);
  -webkit-mask-image:linear-gradient(100deg,#000 10%,transparent 78%);
  mask-image:linear-gradient(100deg,#000 10%,transparent 78%);}
.hero-inner{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-muted);margin-bottom:20px;}
.breadcrumb a{color:var(--ink-muted);}
.breadcrumb a:hover{color:var(--brand-500);}
.h1{font-size:clamp(30px,4.4vw,52px);line-height:1.15;font-weight:700;margin:14px 0 14px;color:var(--ink);max-width:820px;}
.hero-sub{font-size:17px;line-height:1.75;color:var(--ink-muted);margin:0 0 24px;max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}

/* 时间轴 */
.timeline{position:relative;max-width:900px;margin:0 auto;}
.tl-node{display:grid;grid-template-columns:76px 1fr;gap:22px;position:relative;padding-bottom:32px;}
.tl-node:last-child{padding-bottom:0;}
.tl-rail{position:relative;display:flex;justify-content:center;}
.tl-rail::before{content:"";position:absolute;top:62px;bottom:-32px;width:2px;background:linear-gradient(180deg,#FFCFB8,var(--line));}
.tl-node:last-child .tl-rail::before{display:none;}
.tl-dot{width:56px;height:56px;border-radius:50%;background:var(--grad);color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;box-shadow:var(--shadow-brand);}
.tl-body{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:26px 28px;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease;}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.tl-text{font-size:15.5px;line-height:1.85;color:var(--ink-muted);margin:0;}

/* 图文块 */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;}
.thumb{position:relative;overflow:hidden;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--line);}
.thumb.ratio{aspect-ratio:16/10;}
.thumb img{width:100%;height:100%;object-fit:cover;}
.split-body .h2{margin-top:14px;text-align:left;}
.check-list{list-style:none;margin:22px 0 28px;padding:0;display:flex;flex-direction:column;gap:14px;}
.check-list li{position:relative;padding-left:30px;font-size:15.5px;line-height:1.7;color:var(--ink-muted);}
.check-list li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:50%;background:var(--grad);}
.check-list li::after{content:"";position:absolute;left:5px;top:12px;width:6px;height:3px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg);}
.check-list li strong{color:var(--ink);font-weight:600;}

/* 服务对照 */
.compare{max-width:900px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:26px;overflow:hidden;background:var(--surface);box-shadow:var(--shadow-sm);}
.compare-col{padding:30px 28px 34px;}
.compare-col + .compare-col{border-left:1px dashed var(--line);background:linear-gradient(180deg,#FFF8F3,#fff 60%);}
.compare-head{padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:8px;}
.compare-head .tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.6px;background:var(--surface-tint);color:var(--brand-600);}
.compare-head .h3{margin:12px 0 4px;font-size:20px;}
.compare-head p{margin:0;font-size:13.5px;color:var(--ink-muted);}
.crow{display:flex;align-items:flex-start;gap:10px;padding:13px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink);}
.crow:last-child{border-bottom:0;}
.crow .mark{flex:0 0 18px;width:18px;height:18px;margin-top:5px;border-radius:50%;background:var(--grad);position:relative;}
.crow .mark::after{content:"";position:absolute;left:5px;top:6px;width:7px;height:3px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg);}
.crow.off{color:#9AA5A2;}
.crow.off .mark{background:transparent;border:1.5px dashed #C9D2CF;}
.crow.off .mark::after{display:none;}

/* CTA 带 */
.cta-band{position:relative;overflow:hidden;background:var(--jade-900);border-radius:26px;padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:28px;}
.cta-band::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;opacity:.12;}
.cta-band::after{content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;background:radial-gradient(circle,rgba(255,91,41,.5),transparent 68%);}
.cta-copy{position:relative;z-index:2;}
.cta-copy .h2{color:#fff;margin:0 0 8px;font-size:clamp(22px,2.3vw,30px);text-align:left;}
.cta-copy p{margin:0;color:#BFD4CD;font-size:15px;}
.cta-band .btn{position:relative;z-index:2;flex:0 0 auto;}

/* FAQ */
.faq{max-width:900px;margin:0 auto;border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);position:relative;padding-left:0;transition:padding .2s ease;}
.faq details[open]{padding-left:16px;}
.faq details[open]::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:999px;background:var(--grad);}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:21px 2px;font-size:17px;font-weight:600;color:var(--ink);transition:color .2s ease;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";font-size:22px;font-weight:400;color:var(--brand-500);line-height:1;}
.faq details[open] summary{color:var(--brand-600);}
.faq details[open] summary::after{content:"−";}
.faq summary:hover{color:var(--brand-600);}
.faq summary:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px;}
.faq p{margin:0;padding:0 2px 22px;font-size:15px;line-height:1.85;color:var(--ink-muted);max-width:800px;}

/* 页脚 */
.footer{background:var(--jade-900);color:#D9E6E1;position:relative;overflow:hidden;margin-top:40px;}
.footer::before{content:"";position:absolute;inset:0;background:radial-gradient(620px 240px at 10% 0,rgba(255,91,41,.2),transparent 70%);}
.footer-inner{position:relative;z-index:2;padding:58px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:17px;font-weight:700;color:#fff;}
.footer .about{margin:0;font-size:14px;line-height:1.85;color:#B9CDC6;max-width:330px;}
.footer h4{margin:0 0 16px;font-size:15px;font-weight:600;color:#fff;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:#C6D8D2;}
.footer-links a:hover{color:var(--brand-300);}
.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-contact li{font-size:14px;color:#C6D8D2;line-height:1.6;}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#9FB6AF;}
.footer-bottom a{color:var(--brand-300);}
.footer-bottom a:hover{color:#fff;}

@media (max-width:1023px){
  .sidebar{display:none;}
  .topbar{display:flex;}
  .section{padding:64px 0;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split-body .h2{text-align:left;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 26px;}
  .cta-band .btn{width:100%;}
}
@media (max-width:820px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .page-hero{padding:40px 0 44px;}
  .h1{font-size:clamp(26px,7vw,34px);}
  .hero-actions .btn{flex:1 1 100%;}
  .compare{grid-template-columns:1fr;}
  .compare-col + .compare-col{border-left:0;border-top:1px dashed var(--line);}
  .timeline{padding-left:0;}
  .tl-node{grid-template-columns:50px 1fr;gap:14px;}
  .tl-dot{width:44px;height:44px;font-size:15px;}
  .tl-rail::before{top:50px;}
  .tl-body{padding:20px 18px;}
  .section-head{margin-bottom:34px;text-align:left;}
  .faq summary{font-size:16px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .hero-track{width:220px;height:260px;opacity:.8;}
}