/* roulang page: index */
:root{
  --brand:#E9552B;
  --brand-dark:#C23D16;
  --brand-tint:#FCEBE4;
  --accent:#1FAE93;
  --accent-tint:#E6F7F3;
  --ink-900:#15181D;
  --ink-700:#333A44;
  --ink-500:#6B7480;
  --ink-300:#9AA3AF;
  --line:#E5E0D8;
  --bg:#FBF9F6;
  --bg-soft:#F2EDE5;
  --surface:#FFFFFF;
  --dark:#14171C;
  --r-lg:14px;
  --r-md:12px;
  --r-sm:10px;
  --shadow-sm:0 1px 2px rgba(21,24,29,.05),0 4px 12px rgba(21,24,29,.05);
  --shadow-md:0 10px 30px rgba(21,24,29,.10);
  --shadow-brand:0 8px 22px rgba(233,85,43,.28);
  --container:1180px;
  --nav-h:68px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:16px}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  transition:background var(--ease),box-shadow var(--ease),height var(--ease);
  background:transparent;
}
.site-header.is-scrolled{
  background:rgba(251,249,246,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow-sm);
}
.nav{
  max-width:1240px;margin:0 auto;padding:0 24px;
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  transition:height var(--ease);
}
.site-header.is-scrolled .nav{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo__mark{
  width:30px;height:30px;border-radius:9px;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;letter-spacing:.02em;
  box-shadow:0 4px 12px rgba(233,85,43,.28);
}
.logo__text{display:flex;flex-direction:column;line-height:1.15}
.logo__text strong{font-size:15.5px;font-weight:800;letter-spacing:-.01em}
.logo__text em{font-style:normal;font-size:11.5px;color:var(--ink-500);letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink-700);
  padding:6px 0;transition:color var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-links a:hover{color:var(--ink-900)}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--brand-dark);font-weight:600}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:36px;height:36px;border-radius:50%;border:1px solid transparent;
  background:transparent;color:var(--ink-700);
  display:flex;align-items:center;justify-content:center;
  transition:background var(--ease),color var(--ease);
}
.icon-btn:hover{background:var(--bg-soft);color:var(--ink-900)}
.burger{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff}
.burger span{display:block;width:18px;height:2px;background:var(--ink-900);margin:4px auto;border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer{
  display:none;position:fixed;left:0;right:0;top:var(--nav-h);
  background:#fff;border-radius:0 0 16px 16px;
  box-shadow:var(--shadow-md);padding:18px 20px 24px;z-index:119;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer a.drawer-link{
  display:block;padding:13px 4px;font-size:16px;color:var(--ink-700);
  border-bottom:1px solid var(--line);
}
.drawer a.drawer-link.is-active{color:var(--brand-dark);font-weight:600}
.drawer .btn{margin-top:18px;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 12px rgba(233,85,43,.20)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-brand)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(233,85,43,.20)}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-tint);border-color:var(--brand-tint);color:var(--brand-dark)}
.btn-block{width:100%;height:48px}
.btn[disabled],.btn.is-disabled{background:var(--bg-soft);color:var(--ink-300);border-color:var(--line);cursor:not-allowed;box-shadow:none;transform:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-weight:600;font-size:15px;
  transition:color var(--ease);
}
.link-arrow svg{transition:transform var(--ease)}
.link-arrow:hover{color:var(--brand-dark)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 通用板块 ---------- */
.section{padding:92px 0}
.section--tight{padding:72px 0}
.section--soft{background:var(--bg-soft)}
.section-head{max-width:720px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-tint);color:var(--brand-dark);
  font-size:12px;font-weight:700;letter-spacing:.04em;
  margin-bottom:16px;
}
.eyebrow--accent{background:var(--accent-tint);color:#0F8C76}
h1{font-size:clamp(2rem,3.6vw,3.25rem);line-height:1.2;font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(1.5rem,2.4vw,2.1rem);line-height:1.32;font-weight:700;letter-spacing:-.01em}
h3{font-size:1.25rem;line-height:1.45;font-weight:600}
h4{font-size:1.0625rem;font-weight:600}
.section-head h2 + p{margin-top:12px;color:var(--ink-500);font-size:15.5px;line-height:1.75}
.lead{color:var(--ink-500);font-size:16px;line-height:1.8}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge-brand{background:var(--brand-tint);color:var(--brand-dark)}
.badge-accent{background:var(--accent-tint);color:#0F8C76}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:calc(var(--nav-h) + 76px) 0 88px;
  background:
    radial-gradient(circle at 88% 12%,rgba(31,174,147,.06) 0,rgba(31,174,147,0) 46%),
    radial-gradient(circle at 6% 84%,rgba(233,85,43,.06) 0,rgba(233,85,43,0) 48%),
    var(--bg);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(21,24,29,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(21,24,29,.045) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0,transparent 72%);
  mask-image:radial-gradient(circle at 50% 30%,#000 0,transparent 72%);
  opacity:.55;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:55% 45%;
  gap:48px;align-items:center;
}
.hero-copy{max-width:560px}
.hero h1{margin:18px 0 18px}
.hero h1 .hl{color:var(--brand)}
.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-700);max-width:520px}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.trust-row{display:flex;gap:22px;margin-top:30px;flex-wrap:wrap}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-500)}
.trust-row svg{flex-shrink:0;color:var(--accent)}
.hero-visual{position:relative}
.hero-visual__main{
  border-radius:18px;overflow:hidden;box-shadow:var(--shadow-md);
  aspect-ratio:4/3;background:var(--bg-soft);
}
.hero-visual__main img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:-24px;bottom:34px;
  background:#fff;border-radius:var(--r-lg);padding:16px 20px;
  box-shadow:var(--shadow-md);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:2px;min-width:132px;
}
.hero-float strong{font-size:32px;line-height:1.1;color:var(--brand);font-variant-numeric:tabular-nums}
.hero-float span{font-size:12.5px;color:var(--ink-500);letter-spacing:.02em}
.hero-visual__sub{
  position:absolute;right:-18px;top:-24px;width:132px;
  border-radius:var(--r-md);overflow:hidden;
  border:4px solid #fff;box-shadow:var(--shadow-md);
  aspect-ratio:1/1;background:var(--bg-soft);
}
.hero-visual__sub img{width:100%;height:100%;object-fit:cover}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.pain-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px 24px 24px 28px;
  box-shadow:var(--shadow-sm);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.pain-card::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);opacity:.85;
}
.pain-card:hover{border-color:#D9CFC2;box-shadow:var(--shadow-md)}
.pain-icon{
  width:40px;height:40px;border-radius:11px;background:var(--brand-tint);
  display:flex;align-items:center;justify-content:center;color:var(--brand-dark);
  margin-bottom:14px;
}
.pain-card h3{font-size:17.5px;margin-bottom:6px}
.pain-card p{font-size:14.5px;color:var(--ink-500);line-height:1.7}

/* ---------- 方案 ---------- */
.plan-wrap{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.plan-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:box-shadow var(--ease),border-color var(--ease),transform var(--ease);
}
.plan-main:hover,.plan-side:hover{box-shadow:var(--shadow-md);border-color:#D9CFC2;transform:translateY(-2px)}
.plan-main figure{aspect-ratio:16/9;background:var(--bg-soft);overflow:hidden}
.plan-main figure img{width:100%;height:100%;object-fit:cover}
.plan-main .plan-body{padding:26px 24px 24px;display:flex;flex-direction:column;gap:14px;flex:1}
.plan-num{
  font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.14em;
  font-variant-numeric:tabular-nums;
}
.plan-body h3{font-size:21px;line-height:1.4}
.plan-body p{font-size:15px;color:var(--ink-500);line-height:1.78}
.plan-list{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.plan-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-700)}
.plan-list li::before{
  content:"";flex-shrink:0;width:6px;height:6px;border-radius:50%;
  background:var(--accent);margin-top:9px;
}
.plan-side{display:flex;flex-direction:column;gap:24px}
.plan-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:12px;
  flex:1;transition:box-shadow var(--ease),border-color var(--ease),transform var(--ease);
}
.plan-card h3{font-size:18px}
.plan-card p{font-size:14.5px;color:var(--ink-500);line-height:1.75}
.plan-card .link-arrow{margin-top:auto;font-size:14px}

/* ---------- 数据 ---------- */
.stats{background:var(--dark);color:rgba(255,255,255,.78);padding:78px 0}
.stats h2{color:#fff;margin-bottom:12px}
.stats .lead{color:rgba(255,255,255,.55);max-width:640px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:44px}
.stat{padding:0 24px;border-left:1px solid rgba(255,255,255,.12)}
.stat:first-child{border-left:0;padding-left:0}
.stat strong{display:block;font-size:clamp(2.1rem,3vw,2.6rem);line-height:1.1;font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand)}
.stat:nth-child(even) strong{color:var(--accent)}
.stat span{display:block;margin-top:10px;font-size:13.5px;color:rgba(255,255,255,.55);letter-spacing:.02em}
.stats-note{margin-top:36px;font-size:13px;color:rgba(255,255,255,.45);line-height:1.7}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px 20px;box-shadow:var(--shadow-sm);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.step:hover{border-color:var(--brand-tint);box-shadow:var(--shadow-md)}
.step-num{
  font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.12em;
  font-variant-numeric:tabular-nums;display:block;margin-bottom:10px;
}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-500);line-height:1.72}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:box-shadow var(--ease),border-color var(--ease),transform var(--ease);
}
.news-card:hover{box-shadow:var(--shadow-md);border-color:#D9CFC2;transform:translateY(-2px)}
.news-thumb{position:relative;aspect-ratio:16/10;background:var(--bg-soft);overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-thumb .badge{position:absolute;left:12px;top:12px;background:var(--brand);color:#fff}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{
  font-size:17px;line-height:1.5;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14px;color:var(--ink-500);line-height:1.72;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--ink-500);padding-top:8px;
}
.news-meta svg{color:var(--ink-300);transition:color var(--ease),transform var(--ease)}
.news-card:hover .news-meta svg{color:var(--brand);transform:translateX(3px)}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:56px 24px;text-align:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
}
.empty-state svg{color:var(--ink-300)}
.empty-state p{font-size:15px;color:var(--ink-500)}

/* ---------- 表单 ---------- */
.form-section{background:var(--bg-soft)}
.form-grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:start}
.form-copy h2{margin-bottom:16px}
.form-copy .lead{font-size:15.5px;max-width:460px}
.benefit-list{display:flex;flex-direction:column;gap:16px;margin-top:32px}
.benefit-list li{display:flex;gap:14px;align-items:flex-start}
.benefit-list .tick{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  background:var(--accent-tint);color:#0F8C76;
  display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.benefit-list strong{display:block;font-size:15.5px;font-weight:600}
.benefit-list span{font-size:14px;color:var(--ink-500);line-height:1.68}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow-sm);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-hint{font-size:14px;color:var(--ink-500);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-700);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:12px 14px;background:#fff;color:var(--ink-900);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field input,.field select{height:46px}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-300)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(233,85,43,.12);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--brand-dark)}
.field-error{display:none;font-size:12px;color:var(--brand-dark);margin-top:6px}
.field.has-error .field-error{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 18px}
.check-row input{width:17px;height:17px;margin-top:4px;accent-color:var(--brand);flex-shrink:0}
.check-row label{font-size:13px;color:var(--ink-500);line-height:1.65}
.check-row a{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
.privacy-note{margin-top:14px;font-size:13px;color:var(--ink-500);line-height:1.7}
.privacy-note a{color:var(--ink-700);text-decoration:underline;text-underline-offset:3px}
.privacy-note a:hover{color:var(--brand-dark)}

/* ---------- FAQ ---------- */
.faq-list{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:16px 24px;background:transparent;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink-900);transition:background var(--ease),color var(--ease);
}
.faq-q:hover{background:var(--brand-tint);color:var(--brand-dark)}
.faq-ico{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--ink-500);transition:transform .22s ease,color var(--ease),border-color var(--ease);
}
.faq-item.is-open .faq-ico{transform:rotate(45deg);color:var(--brand);border-color:var(--brand-tint)}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .22s ease,opacity .22s ease}
.faq-item.is-open .faq-a{opacity:1}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-700)}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--brand-tint);border-radius:var(--r-lg);
  padding:30px 34px;display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}
.cta-band p{font-size:17px;font-weight:600;color:var(--ink-900)}
.cta-band small{display:block;margin-top:4px;font-size:13.5px;font-weight:400;color:var(--ink-500)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:3fr 2fr 2fr 3fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo__text strong{color:#fff}
.footer-brand .logo__text em{color:rgba(255,255,255,.55)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.55);max-width:300px}
.footer-contact{margin-top:18px;font-size:14px;color:rgba(255,255,255,.78);line-height:1.9}
.footer-contact span{display:block;color:rgba(255,255,255,.45);font-size:12.5px;letter-spacing:.04em}
.site-footer h4{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62);transition:color var(--ease)}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:#fff}

/* ---------- 弹层 ---------- */
.modal{
  position:fixed;inset:0;z-index:200;display:none;
  align-items:flex-start;justify-content:center;
  background:rgba(21,24,29,.55);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
  padding:10vh 20px 40px;overflow-y:auto;
}
.modal.is-open{display:flex}
.modal-panel{
  position:relative;width:100%;max-width:480px;background:#fff;
  border-radius:16px;padding:28px;box-shadow:0 24px 60px rgba(21,24,29,.28);
  animation:modalIn .22s ease;
}
@keyframes modalIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.modal-close{
  position:absolute;right:14px;top:14px;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--ink-500);
  display:flex;align-items:center;justify-content:center;
  transition:background var(--ease),color var(--ease);
}
.modal-close:hover{background:var(--bg-soft);color:var(--ink-900)}
.modal-panel h3{font-size:18px;margin-bottom:6px}
.modal-panel .modal-sub{font-size:13.5px;color:var(--ink-500);margin-bottom:20px;line-height:1.7}
.form-success{
  display:none;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:36px 12px;text-align:center;
}
.form-success.is-visible{display:flex}
.form-success svg{color:var(--accent)}
.form-success p{font-size:16px;font-weight:600;color:var(--ink-900)}
.form-success span{font-size:13.5px;color:var(--ink-500)}
body.is-locked{overflow:hidden}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{padding:0 22px}
  .nav{padding:0 22px}
  .hero-grid{gap:36px}
  .hero-float{left:-12px}
  .hero-visual__sub{right:-8px;width:116px}
}
@media (max-width:1024px){
  .nav-links{display:none}
  .burger{display:block}
  .drawer{display:block}
  .hero{padding-top:calc(var(--nav-h) + 52px);padding-bottom:64px}
  .hero-grid{grid-template-columns:1fr}
  .hero-copy{max-width:none}
  .hero-visual{max-width:560px;margin:8px auto 0;width:100%}
  .plan-wrap{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .stat{border-left:0;padding:0}
  .stat:nth-child(odd){padding-right:22px}
  .stat:nth-child(even){border-left:1px solid rgba(255,255,255,.12);padding-left:22px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .form-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:60px 0}
  .section--tight{padding:52px 0}
  .pain-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .stats{padding:56px 0}
  .cta-band{padding:24px;flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .hero-visual__sub{width:96px;top:-16px}
  .hero-float{left:0;bottom:16px;padding:12px 16px}
  .hero-float strong{font-size:26px}
  .faq-q{font-size:15.5px;padding:14px 18px}
  .faq-a-inner{padding:0 18px 18px}
  .form-card{padding:22px}
  .modal{padding:0;align-items:flex-end}
  .modal-panel{max-width:none;border-radius:16px 16px 0 0;padding:26px 20px 32px;animation:modalUp .22s ease}
  @keyframes modalUp{from{transform:translateY(24px);opacity:.6}to{transform:none;opacity:1}}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .nav{padding:0 20px}
  .logo__text strong{font-size:14px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-visual__sub{display:none}
  .news-body{padding:18px 18px 20px}
  .pain-card{padding:20px 18px 20px 22px}
  .cta-band{padding:20px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --brand:#E9552B;
  --brand-dark:#C23D16;
  --brand-tint:#FCEBE4;
  --accent:#1FAE93;
  --accent-tint:#E6F7F3;
  --ink-900:#15181D;
  --ink-700:#333A44;
  --ink-500:#6B7480;
  --ink-300:#9AA3AF;
  --line:#E5E0D8;
  --bg:#FBF9F6;
  --bg-soft:#F2EDE5;
  --surface:#FFFFFF;
  --dark:#14171C;
  --radius-card:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(21,24,29,.05),0 4px 12px rgba(21,24,29,.05);
  --shadow-md:0 10px 30px rgba(21,24,29,.10);
  --shadow-brand:0 8px 22px rgba(233,85,43,.28);
  --container:1180px;
  --header-h:68px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}
button{font-family:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------------- 顶部导航 ---------------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(251,249,246,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.site-header.is-scrolled{
  box-shadow:var(--shadow-sm);
  border-bottom-color:var(--line);
}
.header-inner{
  max-width:1240px;margin:0 auto;padding:0 24px;
  height:var(--header-h);
  display:flex;align-items:center;gap:24px;
  transition:height var(--ease);
}
.is-scrolled .header-inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{
  width:32px;height:32px;border-radius:9px;
  background:var(--brand);color:#fff;
  display:grid;place-items:center;
  font-weight:800;font-size:17px;letter-spacing:0;
  box-shadow:0 4px 12px rgba(233,85,43,.28);
}
.logo__text{display:flex;flex-direction:column;line-height:1.15}
.logo__text strong{font-size:16px;font-weight:800;letter-spacing:.01em}
.logo__text em{font-style:normal;font-size:11px;color:var(--ink-500);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-700);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink-900);font-weight:600}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;color:var(--ink-700);
  transition:background var(--ease),color var(--ease);
}
.icon-btn:hover{background:var(--bg-soft);color:var(--ink-900)}
.icon-btn svg{width:18px;height:18px}
.menu-btn{display:none;width:44px;height:44px;border-radius:12px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;
  padding:0 22px;height:46px;
  transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(233,85,43,.20)}
.btn--primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-brand)}
.btn--primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(233,85,43,.22)}
.btn--ghost{background:transparent;color:var(--ink-900);border:1px solid var(--line)}
.btn--ghost:hover{background:var(--brand-tint);border-color:var(--brand-tint);color:var(--brand-dark)}
.btn--ghost:active{transform:translateY(0)}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn--lg{height:50px;padding:0 26px}
.btn--block{width:100%}
.btn:disabled,.btn.is-disabled{background:var(--bg-soft);color:var(--ink-300);box-shadow:none;cursor:not-allowed;transform:none}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-size:14px;font-weight:600;
}
.link-more svg{width:15px;height:15px;transition:transform var(--ease)}
.link-more:hover{color:var(--brand-dark)}
.link-more:hover svg{transform:translateX(3px)}

/* 搜索浮层 */
.search-pop{
  border-top:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow-sm);
}
.search-pop .inner{
  max-width:1240px;margin:0 auto;padding:16px 24px;
  display:flex;gap:12px;align-items:center;
}
.search-pop input{
  flex:1;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:0 14px;font-size:15px;color:var(--ink-900);background:var(--bg);
}
.search-pop input::placeholder{color:var(--ink-300)}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(21,24,29,.45);
  opacity:0;visibility:hidden;transition:opacity 200ms ease,visibility 200ms ease;z-index:200;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;right:0;z-index:210;
  background:var(--surface);border-radius:0 0 16px 16px;
  padding:18px 20px 24px;
  transform:translateY(-104%);transition:transform 200ms ease;
  max-height:92vh;overflow-y:auto;
}
.drawer.is-open{transform:translateY(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer__links{display:flex;flex-direction:column}
.drawer__links a{
  padding:13px 4px;font-size:16px;color:var(--ink-700);
  border-bottom:1px solid var(--line);
}
.drawer__links a:hover{color:var(--brand-dark)}
.drawer__search{display:flex;gap:10px;margin-top:16px}
.drawer__search input{
  flex:1;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:0 14px;font-size:15px;background:var(--bg);
}
.drawer .btn{margin-top:16px}

/* ---------------- 面包屑 ---------------- */
.crumb-bar{background:var(--bg-soft);border-bottom:1px solid var(--line)}
.crumb-bar .container{padding-top:14px;padding-bottom:14px}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-500);
}
.crumb a:hover{color:var(--brand-dark)}
.crumb .sep{color:var(--ink-300)}
.crumb .current{color:var(--ink-700);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------------- 文章头部 ---------------- */
.article-head{padding:48px 0 0}
.article-head .wrap{max-width:820px;margin:0 auto}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--radius-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag--brand{background:var(--brand-tint);color:var(--brand-dark)}
.tag--accent{background:var(--accent-tint);color:var(--accent)}
.article-head h1{
  font-size:clamp(1.75rem,3vw,2.6rem);
  line-height:1.28;font-weight:800;letter-spacing:-.01em;
  margin:16px 0 0;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:18px;font-size:13px;color:var(--ink-500);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--ink-300);display:inline-block}
.article-cover{
  max-width:920px;margin:32px auto 0;
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
  background:var(--bg-soft);
}
.article-cover img{width:100%;aspect-ratio:16/8;object-fit:cover}
.article-cover figcaption{font-size:12px;color:var(--ink-500);padding:10px 16px;background:var(--surface)}

/* ---------------- 正文 ---------------- */
.article-main{padding:44px 0 8px}
.article-body{
  max-width:740px;margin:0 auto;
  font-size:17px;line-height:1.85;color:var(--ink-700);
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;
  font-size:clamp(1.35rem,2.1vw,1.7rem);
  line-height:1.4;font-weight:700;color:var(--ink-900);
  margin:40px 0 14px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;
  background:var(--brand);border-radius:3px;
}
.article-body h3{
  font-size:1.25rem;line-height:1.45;font-weight:600;color:var(--ink-900);
  margin:28px 0 10px;
}
.article-body h4{font-size:1.0625rem;font-weight:600;color:var(--ink-900);margin:22px 0 8px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em;line-height:1.8}
.article-body ul li{list-style:disc;margin-bottom:8px}
.article-body ol li{list-style:decimal;margin-bottom:8px}
.article-body ul li::marker,.article-body ol li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  border-left:3px solid var(--brand);
  background:var(--brand-tint);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  font-size:15px;color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-sm);margin:22px auto;max-width:100%}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:12px;color:var(--ink-500);text-align:center;margin-top:8px}
.article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-dark)}
.article-body strong{color:var(--ink-900);font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body table{font-size:15px;margin:22px 0}
.article-body thead th{
  background:var(--bg-soft);color:var(--ink-900);font-weight:600;
  text-align:left;padding:12px 14px;
}
.article-body tbody td{padding:12px 14px;border-top:1px solid var(--line);color:var(--ink-700)}
.article-body tbody tr:hover td{background:#FCFAF7}
.article-empty{
  max-width:740px;margin:0 auto;text-align:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:56px 24px;box-shadow:var(--shadow-sm);
}
.article-empty svg{width:44px;height:44px;color:var(--ink-300);margin:0 auto 14px}
.article-empty p{font-size:15px;color:var(--ink-500);margin-bottom:20px}

/* 文末区 */
.article-foot{max-width:740px;margin:40px auto 0}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.tag-row .tag{background:var(--bg-soft);color:var(--ink-700);font-weight:500}
.tag-row .tag:hover{background:var(--brand-tint);color:var(--brand-dark)}
.article-foot .back-row{display:flex;justify-content:flex-start;padding-bottom:28px;border-bottom:1px solid var(--line)}

/* 相关推荐 */
.related{padding:56px 0 0}
.related-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.related-head h2{font-size:clamp(1.3rem,2vw,1.6rem);font-weight:700}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);transition:box-shadow var(--ease),border-color var(--ease),transform var(--ease);
}
.rel-card:hover{box-shadow:var(--shadow-md);border-color:#F3D6CA;transform:translateY(-2px)}
.rel-card__img{aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft)}
.rel-card__img img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease}
.rel-card:hover .rel-card__img img{transform:scale(1.03)}
.rel-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-card__body h3{
  font-size:16px;font-weight:600;line-height:1.5;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card__meta{font-size:13px;color:var(--ink-500);margin-top:auto}

/* 分类胶囊导航 */
.cat-nav{padding:64px 0 0}
.cat-nav h2{font-size:clamp(1.2rem,1.9vw,1.5rem);font-weight:700;margin-bottom:16px}
.pill-list{display:flex;flex-wrap:wrap;gap:10px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 18px;border-radius:var(--radius-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:14px;color:var(--ink-700);
  transition:all var(--ease);
}
.pill:hover{background:var(--brand-tint);border-color:#F3D6CA;color:var(--brand-dark)}
.pill.is-current{background:var(--brand);border-color:var(--brand);color:#fff}

/* CTA 条 */
.cta-strip{padding:72px 0 0}
.cta-inner{
  background:var(--dark);border-radius:18px;
  padding:34px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--shadow-md);
}
.cta-inner .txt h2{color:#fff;font-size:clamp(1.15rem,1.9vw,1.45rem);font-weight:700;line-height:1.5}
.cta-inner .txt p{color:rgba(255,255,255,.62);font-size:14px;margin-top:8px}

/* ---------------- 弹层 ---------------- */
.modal-mask{
  position:fixed;inset:0;z-index:300;
  background:rgba(21,24,29,.55);
  backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);
  display:flex;justify-content:center;align-items:flex-start;
  padding:10vh 20px 20px;
  opacity:0;visibility:hidden;transition:opacity 200ms ease,visibility 200ms ease;
}
.modal-mask.is-open{opacity:1;visibility:visible}
.modal{
  width:100%;max-width:480px;background:var(--surface);
  border-radius:16px;padding:26px 26px 24px;
  box-shadow:var(--shadow-md);
  transform:translateY(-10px);transition:transform 220ms ease;
  max-height:82vh;overflow-y:auto;
}
.modal-mask.is-open .modal{transform:translateY(0)}
.modal__head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:18px}
.modal__head h3{font-size:17px;font-weight:700}
.modal__head p{font-size:13px;color:var(--ink-500);margin-top:4px}
.modal__close{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  color:var(--ink-500);flex:0 0 auto;transition:background var(--ease),color var(--ease);
}
.modal__close:hover{background:var(--bg-soft);color:var(--ink-900)}
.modal__close svg{width:16px;height:16px}

/* 表单 */
.form-field{margin-bottom:14px}
.form-field label{display:block;font-size:13px;font-weight:600;color:var(--ink-700);margin-bottom:6px}
.form-field input[type="text"],
.form-field input[type="tel"],
.form-field select,
.form-field textarea{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:12px 14px;font-size:15px;color:var(--ink-900);
  background:var(--surface);font-family:inherit;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.form-field textarea{height:96px;resize:vertical;line-height:1.7}
.form-field input::placeholder,.form-field textarea::placeholder{color:var(--ink-300)}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(233,85,43,.12);outline:none;
}
.form-field.has-error input,.form-field.has-error select,.form-field.has-error textarea{
  border-color:var(--brand-dark);
}
.form-field.has-error input:focus,.form-field.has-error select:focus,.form-field.has-error textarea:focus{
  box-shadow:0 0 0 3px rgba(194,61,22,.12);
}
.err-msg{display:none;font-size:12px;color:var(--brand-dark);margin-top:6px}
.form-field.has-error .err-msg{display:block}
.check-row{display:flex;align-items:flex-start;gap:8px;margin:6px 0 4px}
.check-row input[type="checkbox"]{
  width:16px;height:16px;margin-top:4px;accent-color:var(--brand);flex:0 0 auto;
}
.check-row label{font-size:13px;color:var(--ink-500);line-height:1.6;font-weight:400;margin:0}
.check-row.has-error label{color:var(--brand-dark)}
.privacy-note{font-size:13px;line-height:1.7;color:var(--ink-500);margin-top:10px}
.privacy-note a{color:var(--ink-500);text-decoration:underline;text-underline-offset:3px}
.privacy-note a:hover{color:var(--brand-dark)}
.form-success{text-align:center;padding:28px 8px}
.form-success svg{width:42px;height:42px;color:var(--accent);margin:0 auto 12px}
.form-success p{font-size:15px;color:var(--ink-700);margin-bottom:18px}

/* ---------------- 页脚 ---------------- */
.site-footer{margin-top:88px;background:#15181D;color:rgba(255,255,255,.78);padding:64px 0 0}
.footer-grid{
  display:grid;grid-template-columns:3fr 2fr 2fr 3fr;gap:32px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo__text strong{color:#fff}
.footer-brand .logo__text em{color:rgba(255,255,255,.5)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.55);max-width:320px}
.footer-contact{margin-top:18px;font-size:13px;color:rgba(255,255,255,.55)}
.footer-contact span{display:block;color:rgba(255,255,255,.4);margin-bottom:4px}
.site-footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62)}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------------- 响应式 ---------------- */
@media (max-width:1100px){
  .main-nav{gap:18px}
  .nav-link{font-size:14px}
}
@media (max-width:1024px){
  .main-nav{display:none}
  .menu-btn{display:grid}
  .header-actions .btn--sm{display:none}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:28px}
  .cta-inner .btn{width:100%}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .article-head{padding-top:32px}
  .article-main{padding-top:32px}
  .article-body{font-size:16px;max-width:100%}
  .article-body h2{margin-top:32px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .rel-grid{grid-template-columns:1fr}
  .article-foot{max-width:100%}
  .cta-strip{padding-top:56px}
  .cat-nav{padding-top:48px}
  .site-footer{margin-top:64px;padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
  .modal-mask{padding:0;align-items:flex-end}
  .modal{border-radius:16px 16px 0 0;max-width:100%;max-height:90vh;padding:22px 20px 24px}
  .article-cover img{aspect-ratio:16/10}
}
@media (max-width:480px){
  .logo__text em{display:none}
  .article-head h1{font-size:1.6rem}
  .btn{font-size:14px}
  .cta-inner .txt h2{font-size:1.05rem}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --brand:#E9552B;
  --brand-dark:#C23D16;
  --brand-tint:#FCEBE4;
  --accent:#1FAE93;
  --accent-tint:#E6F7F3;
  --ink-900:#15181D;
  --ink-700:#333A44;
  --ink-500:#6B7480;
  --ink-300:#9AA3AF;
  --line:#E5E0D8;
  --bg:#FBF9F6;
  --bg-soft:#F2EDE5;
  --surface:#FFFFFF;
  --dark:#14171C;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(21,24,29,.05),0 4px 12px rgba(21,24,29,.05);
  --shadow-md:0 10px 30px rgba(21,24,29,.10);
  --shadow-brand:0 8px 22px rgba(233,85,43,.28);
  --ease:180ms ease;
  --step-1:4px; --step-2:8px; --step-3:12px; --step-4:16px;
  --step-5:24px; --step-6:32px; --step-7:48px; --step-8:64px; --step-9:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--accent);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:1.15em;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink-900);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{max-width:1180px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--soft{background:var(--bg-soft);}
.section-head{max-width:720px;margin-bottom:var(--step-7);}
.section-head h2{
  font-size:clamp(1.5rem,2.4vw,2.1rem);
  line-height:1.32;
  font-weight:700;
  letter-spacing:-.01em;
}
.section-head p{margin-top:var(--step-3);color:var(--ink-500);font-size:15px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--brand-dark);background:var(--brand-tint);
  padding:4px 12px;border-radius:var(--radius-pill);
  margin-bottom:var(--step-4);
}
.eyebrow__dot{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 2px 8px rgba(233,85,43,.18);}
.btn--primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-brand);}
.btn--primary:active{transform:translateY(0);box-shadow:none;}
.btn--ghost{background:transparent;color:var(--ink-900);border:1px solid var(--line);}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-tint);}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;height:48px;}
.btn[disabled],.btn.is-disabled{background:var(--bg-soft);color:var(--ink-300);cursor:not-allowed;box-shadow:none;transform:none;}
.textlink{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent);}
.textlink svg{transition:transform var(--ease);}
.textlink:hover{color:var(--brand-dark);}
.textlink:hover svg{transform:translateX(3px);}

/* ============ Header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:transparent;
  transition:background var(--ease),box-shadow var(--ease),height var(--ease);
  height:68px;
  display:flex;align-items:center;
}
.site-header.is-scrolled{
  background:rgba(251,249,246,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  box-shadow:var(--shadow-sm);
  height:60px;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--step-5);width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);}
.logo__mark{
  width:28px;height:28px;border-radius:9px;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;letter-spacing:-.02em;
  box-shadow:0 4px 10px rgba(233,85,43,.24);
}
.logo__text{display:flex;flex-direction:column;line-height:1.1;}
.logo__text strong{font-size:15px;font-weight:800;letter-spacing:-.01em;}
.logo__text em{font-style:normal;font-size:11px;color:var(--ink-500);letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:26px;}
.main-nav a{
  position:relative;font-size:15px;color:var(--ink-700);font-weight:500;
  padding:6px 0;transition:color var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.main-nav a:hover{color:var(--ink-900);}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1);}
.main-nav a.active{color:var(--ink-900);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:var(--ink-700);transition:background var(--ease),color var(--ease);
}
.icon-btn:hover{background:var(--bg-soft);color:var(--brand-dark);}
.hamburger{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;color:var(--ink-900);
  border:1px solid var(--line);background:var(--surface);
}
.hamburger:hover{border-color:var(--brand);color:var(--brand-dark);}

/* Drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(21,24,29,.45);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
  z-index:130;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;left:0;right:0;z-index:140;
  background:var(--surface);
  border-radius:0 0 16px 16px;
  padding:20px 20px 26px;
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity 200ms ease,transform 200ms ease,visibility 200ms ease;
  box-shadow:var(--shadow-md);
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer__nav{display:flex;flex-direction:column;}
.drawer__nav a{
  padding:13px 4px;font-size:16px;color:var(--ink-700);
  border-bottom:1px solid var(--line);
}
.drawer__nav a.active{color:var(--brand-dark);font-weight:600;}
.drawer__nav a:last-child{border-bottom:0;}
.drawer__search{
  display:flex;align-items:center;gap:8px;margin:16px 0 14px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:0 12px;height:46px;background:var(--bg);
}
.drawer__search input{border:0;background:transparent;outline:none;width:100%;height:100%;font-size:15px;}
.drawer__search input::placeholder{color:var(--ink-300);}
.drawer__close{
  width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:var(--ink-700);
}
.drawer__close:hover{background:var(--bg-soft);}

/* ============ Breadcrumb ============ */
.breadcrumb-bar{background:var(--bg-soft);padding:78px 0 14px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);}
.breadcrumb a{color:var(--ink-500);}
.breadcrumb a:hover{color:var(--brand-dark);}
.breadcrumb span.sep{color:var(--ink-300);}
.breadcrumb strong{color:var(--ink-700);font-weight:600;}

/* ============ Page hero ============ */
.page-hero{padding:36px 0 0;position:relative;}
.page-hero__grid{
  display:grid;grid-template-columns:minmax(0,6fr) minmax(0,4fr);
  gap:var(--step-7);align-items:center;
  padding-bottom:var(--step-7);
}
.page-hero h1{
  font-size:clamp(2rem,3.6vw,3.25rem);
  line-height:1.2;font-weight:800;letter-spacing:-.01em;
  margin-bottom:var(--step-4);
}
.page-hero h1 .hl{color:var(--brand);}
.page-hero__lead{font-size:17px;color:var(--ink-500);max-width:560px;}
.page-hero__meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:var(--step-5);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:4px 10px;
  border-radius:var(--radius-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge--brand{background:var(--brand-tint);color:var(--brand-dark);}
.badge--accent{background:var(--accent-tint);color:var(--accent);}
.page-hero__figure{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-md);border:1px solid var(--line);background:var(--bg-soft);
}
.page-hero__figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.page-hero__float{
  position:absolute;left:16px;bottom:16px;
  background:rgba(255,255,255,.96);border-radius:12px;
  padding:12px 16px;box-shadow:var(--shadow-sm);
  display:flex;align-items:center;gap:12px;
}
.page-hero__float b{
  font-size:26px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1;
}
.page-hero__float span{font-size:12px;color:var(--ink-500);line-height:1.5;}

/* Intro paragraphs */
.intro-block{max-width:880px;padding-bottom:var(--step-8);}
.intro-block p{color:var(--ink-700);font-size:16px;line-height:1.85;margin-bottom:14px;}
.intro-block p:last-child{margin-bottom:0;}

/* ============ Matrix cards ============ */
.matrix{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:var(--step-5);
}
.matrix-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
  overflow:hidden;
}
.matrix-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand);
  opacity:.85;
}
.matrix-card:nth-child(even)::before{background:var(--accent);}
.matrix-card:hover{border-color:#D9CFC1;box-shadow:var(--shadow-md);transform:translateY(-2px);}
.matrix-card__idx{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:26px;height:26px;padding:0 6px;border-radius:8px;
  background:var(--bg-soft);color:var(--ink-500);
  font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.matrix-card h3{font-size:1.0625rem;font-weight:600;margin-bottom:8px;}
.matrix-card p{font-size:14px;line-height:1.7;color:var(--ink-500);}

/* ============ Card grid (two columns) ============ */
.card-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:var(--step-5);
}
.entry-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.entry-card:hover{border-color:#D9CFC1;box-shadow:var(--shadow-md);transform:translateY(-2px);}
.entry-card__media{position:relative;aspect-ratio:16/9;background:var(--bg-soft);overflow:hidden;}
.entry-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease;}
.entry-card:hover .entry-card__media img{transform:scale(1.03);}
.entry-card__media .badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94);color:var(--brand-dark);}
.entry-card__body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.entry-card__body h3{font-size:1.125rem;font-weight:600;line-height:1.5;}
.entry-card__body p{font-size:14.5px;line-height:1.75;color:var(--ink-500);}
.entry-card__foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.entry-card__num{
  font-size:12px;font-weight:700;color:var(--ink-300);
  font-variant-numeric:tabular-nums;letter-spacing:.06em;
}

/* ============ Steps ============ */
.steps{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:var(--step-5);counter-reset:step;
}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 22px 24px;box-shadow:var(--shadow-sm);
}
.step__num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--brand-tint);color:var(--brand-dark);
  font-weight:800;font-size:14px;font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.step h3{font-size:1.0625rem;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.7;color:var(--ink-500);}
.step__line{
  position:absolute;top:43px;right:-24px;width:24px;height:1px;background:var(--line);
}
.step:last-child .step__line{display:none;}

/* ============ FAQ ============ */
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;}
.faq-item+.faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--ink-900);
  transition:background var(--ease),color var(--ease);
}
.faq-q:hover{background:var(--bg);color:var(--brand-dark);}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  background:var(--bg-soft);color:var(--ink-700);
  display:flex;align-items:center;justify-content:center;
  transition:transform 220ms ease,background var(--ease),color var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand-tint);color:var(--brand-dark);}
.faq-a{
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height 220ms ease,opacity 220ms ease;
}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a__inner{padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--ink-700);max-width:860px;}

/* ============ Category nav pills ============ */
.catnav{display:flex;flex-wrap:wrap;gap:12px;}
.catnav a{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 18px;border-radius:var(--radius-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink-700);
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.catnav a:hover{background:var(--brand-tint);border-color:#F3CDBC;color:var(--brand-dark);transform:translateY(-1px);}
.catnav a.is-current{background:var(--ink-900);border-color:var(--ink-900);color:#fff;}
.catnav a.is-current:hover{background:var(--ink-900);color:#fff;}

/* ============ CTA band ============ */
.cta-band{
  background:var(--dark);color:#fff;border-radius:var(--radius-lg);
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;
  gap:var(--step-6);flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-60px;width:220px;height:220px;
  border-radius:50%;background:rgba(233,85,43,.18);
}
.cta-band h2{font-size:clamp(1.25rem,2vw,1.6rem);line-height:1.4;font-weight:700;position:relative;}
.cta-band p{margin-top:8px;font-size:14px;color:rgba(255,255,255,.65);position:relative;}
.cta-band .btn{position:relative;}

/* ============ Footer ============ */
.site-footer{background:#15181D;color:rgba(255,255,255,.78);padding:64px 0 26px;margin-top:96px;}
.footer-grid{
  display:grid;grid-template-columns:3fr 2fr 2fr 3fr;gap:var(--step-6);
  padding-bottom:40px;
}
.footer-grid h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo__text strong{color:#fff;}
.footer-brand .logo__text em{color:rgba(255,255,255,.55);}
.footer-brand p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.6);max-width:330px;}
.footer-contact{margin-top:16px;font-size:13px;color:rgba(255,255,255,.55);}
.footer-contact span{display:block;color:rgba(255,255,255,.4);margin-bottom:4px;font-size:12px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding-top:20px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ Modal ============ */
.modal-mask{
  position:fixed;inset:0;z-index:200;
  background:rgba(21,24,29,.55);
  backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);
  display:flex;align-items:flex-start;justify-content:center;
  padding:10vh 20px 40px;
  opacity:0;visibility:hidden;transition:opacity 200ms ease,visibility 200ms ease;
  overflow-y:auto;
}
.modal-mask.is-open{opacity:1;visibility:visible;}
.modal{
  width:100%;max-width:480px;background:var(--surface);
  border-radius:16px;padding:28px;box-shadow:var(--shadow-md);
  transform:translateY(-8px);transition:transform 200ms ease;
  position:relative;
}
.modal-mask.is-open .modal{transform:translateY(0);}
.modal__close{
  position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;color:var(--ink-500);
  transition:background var(--ease),color var(--ease);
}
.modal__close:hover{background:var(--bg-soft);color:var(--brand-dark);}
.modal h3{font-size:1.125rem;font-weight:700;margin-bottom:6px;padding-right:36px;}
.modal__sub{font-size:13.5px;color:var(--ink-500);margin-bottom:20px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--ink-700);}
.field input,.field select,.field textarea{
  width:100%;min-height:46px;padding:12px 14px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--surface);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:100px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);outline:none;
  box-shadow:0 0 0 3px rgba(233,85,43,.12);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--brand-dark);}
.field__err{display:none;font-size:12px;color:var(--brand-dark);margin-top:6px;}
.field.has-error .field__err{display:block;}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-500);margin:6px 0 16px;}
.checkbox input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand);flex:0 0 16px;}
.form-note{font-size:13px;color:var(--ink-500);line-height:1.7;margin-top:12px;}
.form-note a{color:var(--ink-500);text-decoration:underline;text-underline-offset:3px;}
.form-note a:hover{color:var(--brand-dark);}
.form-success{
  display:none;text-align:center;padding:26px 8px 10px;
}
.form-success.is-visible{display:block;}
.form-success__icon{
  width:46px;height:46px;border-radius:50%;background:var(--accent-tint);color:var(--accent);
  display:flex;align-items:center;justify-content:center;margin:0 auto 14px;
}
.form-success p{font-size:15px;color:var(--ink-700);margin-bottom:16px;}

/* ============ Responsive ============ */
@media (max-width:1280px){
  .container{padding:0 22px;}
  .main-nav{gap:20px;}
}
@media (max-width:1024px){
  .main-nav{display:none;}
  .hamburger{display:flex;}
  .header-actions .btn--primary{display:none;}
  .page-hero__grid{grid-template-columns:1fr;gap:var(--step-6);}
  .page-hero__figure{order:2;}
  .page-hero__figure img{aspect-ratio:16/10;}
  .matrix{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step__line{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--step-6);}
  .section{padding:72px 0;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .container{padding:0 20px;}
  .breadcrumb-bar{padding-top:74px;}
  .card-grid{grid-template-columns:1fr;}
  .cta-band{padding:30px 24px;border-radius:var(--radius);}
  .cta-band .btn{width:100%;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a__inner{padding:0 18px 18px;}
  .entry-card__body{padding:18px;}
  .site-footer{margin-top:64px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:520px){
  .matrix{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .page-hero h1{font-size:1.85rem;}
  .page-hero__float{left:12px;bottom:12px;padding:10px 12px;}
  .page-hero__float b{font-size:22px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .modal-mask{padding:0;align-items:flex-end;}
  .modal{max-width:100%;border-radius:16px 16px 0 0;padding:26px 20px 30px;}
  .catnav a{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category2 */
:root{
  --brand:#E9552B;
  --brand-dark:#C23D16;
  --brand-tint:#FCEBE4;
  --accent:#1FAE93;
  --accent-tint:#E6F7F3;
  --ink-900:#15181D;
  --ink-700:#333A44;
  --ink-500:#6B7480;
  --ink-300:#9AA3AF;
  --line:#E5E0D8;
  --bg:#FBF9F6;
  --bg-soft:#F2EDE5;
  --surface:#FFFFFF;
  --dark:#14171C;
  --radius-card:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(21,24,29,.05),0 4px 12px rgba(21,24,29,.05);
  --shadow-md:0 10px 30px rgba(21,24,29,.10);
  --shadow-brand:0 8px 22px rgba(233,85,43,.28);
  --container:1180px;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink-900);
  font-size:17px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
p{margin:0}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  height:var(--nav-h);
  background:transparent;
  transition:height .18s ease,background .18s ease,box-shadow .18s ease;
}
.site-header.is-scrolled{
  height:60px;
  background:rgba(251,249,246,.93);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow-sm);
}
.nav-wrap{
  max-width:1240px;margin:0 auto;padding:0 24px;
  height:100%;display:flex;align-items:center;gap:28px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo__mark{
  width:32px;height:32px;border-radius:9px;
  background:linear-gradient(150deg,var(--brand),var(--brand-dark));
  color:#fff;font-weight:800;font-size:16px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(233,85,43,.30);
}
.logo__text{display:flex;flex-direction:column;line-height:1.15}
.logo__text strong{font-size:16px;font-weight:800;color:var(--ink-900);letter-spacing:.01em}
.logo__text em{font-style:normal;font-size:11px;color:var(--ink-500);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{
  position:relative;font-size:15px;color:var(--ink-700);
  padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav a:hover{color:var(--ink-900)}
.main-nav a:hover::after,
.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--brand-dark);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.icon-btn{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-700);transition:background .18s ease,color .18s ease;
}
.icon-btn:hover{background:var(--bg-soft);color:var(--brand-dark)}
.hamburger{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;color:var(--ink-900);
  transition:background .18s ease;
}
.hamburger:hover{background:var(--bg-soft)}
.drawer{
  position:fixed;top:var(--nav-h);left:0;right:0;z-index:89;
  background:#fff;border-radius:0 0 16px 16px;
  box-shadow:var(--shadow-md);
  padding:20px 24px 26px;
  transform:translateY(-12px);opacity:0;pointer-events:none;
  transition:opacity .2s ease,transform .2s ease;
}
.drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.drawer nav{display:flex;flex-direction:column;gap:4px;margin-bottom:16px}
.drawer nav a{
  padding:12px 6px;font-size:16px;color:var(--ink-700);
  border-bottom:1px solid var(--line);
}
.drawer nav a.is-active{color:var(--brand-dark);font-weight:600}
.drawer .search-box{
  display:flex;align-items:center;gap:8px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:0 12px;height:44px;margin-bottom:14px;background:var(--bg);
}
.drawer .search-box input{border:0;background:transparent;flex:1;height:100%;outline:none;font-size:15px}
.drawer .search-box svg{color:var(--ink-300);flex-shrink:0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:600;line-height:1;
  transition:background .18s ease,color .18s ease,border-color .18s ease,
             transform .18s ease,box-shadow .18s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 2px 8px rgba(233,85,43,.18)}
.btn--primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-brand)}
.btn--primary:active{transform:translateY(0);box-shadow:none}
.btn--ghost{background:transparent;color:var(--ink-900);border-color:var(--line)}
.btn--ghost:hover{background:var(--brand-tint);border-color:var(--brand-tint);color:var(--brand-dark)}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn--block{width:100%}
.btn[disabled]{background:var(--bg-soft);color:var(--ink-300);cursor:not-allowed;box-shadow:none;transform:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-weight:600;font-size:15px;
}
.link-arrow svg{transition:transform .18s ease}
.link-arrow:hover{color:var(--brand-dark)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:4px 10px;
  border-radius:var(--radius-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge--brand{background:var(--brand-tint);color:var(--brand-dark)}
.badge--accent{background:var(--accent-tint);color:#12836E}

/* ---------- main offset ---------- */
main{padding-top:var(--nav-h)}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:52px 0 64px;
  background:var(--bg-soft);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(21,24,29,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(21,24,29,.05) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.55;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  background:rgba(233,85,43,.06);right:-120px;top:-180px;pointer-events:none;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:6fr 4fr;gap:48px;align-items:center;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);margin-bottom:18px}
.breadcrumb a:hover{color:var(--brand-dark)}
.breadcrumb span{color:var(--ink-300)}
.page-hero h1{
  font-size:clamp(2rem,3.6vw,3.25rem);line-height:1.2;font-weight:800;
  letter-spacing:-.01em;margin-bottom:16px;
}
.page-hero h1 .hl{color:var(--brand)}
.hero-sub{font-size:17px;color:var(--ink-700);max-width:560px;margin-bottom:24px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:18px;box-shadow:var(--shadow-md);
}
.hero-float{
  position:absolute;left:-16px;bottom:-18px;
  background:#fff;border-radius:var(--radius-card);
  padding:14px 18px;box-shadow:var(--shadow-md);
  border:1px solid var(--line);
}
.hero-float strong{display:block;font-size:26px;font-weight:800;color:var(--brand);line-height:1.2}
.hero-float span{font-size:12px;color:var(--ink-500)}

/* ---------- section base ---------- */
.section{padding:88px 0}
.section--soft{background:var(--bg-soft)}
.section-head{margin-bottom:40px;max-width:720px}
.section-head h2{font-size:clamp(1.5rem,2.4vw,2.1rem);line-height:1.32;font-weight:700;margin-bottom:12px}
.section-head p{color:var(--ink-500);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-dark);
  letter-spacing:.08em;margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);border-radius:2px}

/* ---------- intro ---------- */
.intro-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:32px;
  box-shadow:var(--shadow-sm);
}
.intro-card p{color:var(--ink-700);font-size:16px;line-height:1.9}
.intro-card p + p{margin-top:14px}
.intro-card .intro-quote{
  margin-top:20px;padding:16px 20px;border-left:3px solid var(--brand);
  background:var(--brand-tint);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--brand-dark);font-size:15px;
}

/* ---------- flow rows (category2 版式) ---------- */
.flow-list{display:flex;flex-direction:column}
.flow-row{
  display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:center;
  padding:36px 0;border-bottom:1px solid var(--line);
}
.flow-row:last-child{border-bottom:0}
.flow-row:nth-child(even){grid-template-columns:8fr 4fr}
.flow-row:nth-child(even) .flow-media{order:2}
.flow-media{position:relative}
.flow-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
  border:1px solid var(--line);
}
.flow-media .flow-index{
  position:absolute;top:12px;left:12px;
  background:rgba(255,255,255,.94);
  color:var(--brand-dark);font-weight:800;font-size:13px;
  border-radius:var(--radius-pill);padding:3px 12px;letter-spacing:.06em;
  box-shadow:var(--shadow-sm);
}
.flow-body h3{font-size:1.25rem;font-weight:700;line-height:1.45;margin-bottom:10px}
.flow-body p{color:var(--ink-700);font-size:16px;line-height:1.85}
.flow-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.flow-body .link-arrow{margin-top:18px}

/* ---------- faq ---------- */
.faq-panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 24px;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink-900);
  transition:background .18s ease,color .18s ease;
}
.faq-q:hover{background:var(--bg);color:var(--brand-dark)}
.faq-q .plus{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-soft);color:var(--ink-700);
  transition:transform .22s ease,background .18s ease,color .18s ease;
}
.faq-item.is-open .faq-q{color:var(--brand-dark)}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);background:var(--brand-tint);color:var(--brand-dark)}
.faq-a{
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height .24s ease,opacity .22s ease;
}
.faq-item.is-open .faq-a{max-height:340px;opacity:1}
.faq-a p{
  padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-700);
}

/* ---------- category pills ---------- */
.cat-nav{padding:64px 0}
.cat-nav h2{font-size:1.25rem;font-weight:700;margin-bottom:20px}
.pills{display:flex;flex-wrap:wrap;gap:12px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--surface);
  font-size:15px;color:var(--ink-700);
  transition:border-color .18s ease,background .18s ease,color .18s ease,transform .18s ease;
}
.pill:hover{border-color:var(--brand);background:var(--brand-tint);color:var(--brand-dark);transform:translateY(-1px)}
.pill.is-current{background:var(--brand);border-color:var(--brand);color:#fff}
.pill.is-current:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--dark);border-radius:18px;
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:rgba(233,85,43,.14);
}
.cta-band h3{color:#fff;font-size:1.35rem;font-weight:700;line-height:1.4;position:relative;z-index:1}
.cta-band p{color:rgba(255,255,255,.62);font-size:14px;margin-top:6px;position:relative;z-index:1}
.cta-band .btn{position:relative;z-index:1}

/* ---------- contact / form ---------- */
.contact-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:start}
.contact-left h2{font-size:clamp(1.5rem,2.4vw,2.1rem);line-height:1.32;font-weight:700;margin-bottom:14px}
.contact-left > p{color:var(--ink-500);font-size:15px;margin-bottom:24px}
.benefit{display:flex;gap:12px;align-items:flex-start;margin-bottom:16px}
.benefit .b-num{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  background:var(--brand-tint);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;
}
.benefit p{font-size:15px;color:var(--ink-700)}
.form-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:28px;
  box-shadow:var(--shadow-sm);position:relative;
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-700);margin-bottom:6px}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--bg);padding:12px 14px;font-size:15px;height:46px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{height:auto;min-height:104px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(233,85,43,.12);background:#fff;
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--brand-dark)}
.field .err{display:none;font-size:12px;color:var(--brand-dark);margin-top:6px}
.field.has-error .err{display:block}
.check-line{display:flex;align-items:flex-start;gap:10px;margin:6px 0 18px}
.check-line input[type="checkbox"]{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex-shrink:0}
.check-line label{font-size:13px;color:var(--ink-500);line-height:1.7}
.form-note{font-size:13px;color:var(--ink-500);line-height:1.7;margin-top:14px}
.form-note a{color:var(--ink-500);text-decoration:underline;text-underline-offset:3px}
.form-note a:hover{color:var(--brand-dark)}
.form-success{
  display:none;text-align:center;padding:36px 12px;
}
.form-success svg{color:var(--accent);margin:0 auto 14px}
.form-success p{font-size:16px;color:var(--ink-900);font-weight:600}
.form-success .close-success{
  margin-top:16px;font-size:14px;color:var(--accent);text-decoration:underline;text-underline-offset:3px;
}
.form-card.is-done form{display:none}
.form-card.is-done .form-success{display:block}

/* ---------- footer ---------- */
.site-footer{
  background:#15181D;color:rgba(255,255,255,.78);
  padding:64px 0 0;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:3fr 2fr 2fr 3fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo__text strong{color:#fff}
.footer-brand .logo__text em{color:rgba(255,255,255,.5)}
.footer-brand p{
  font-size:14px;line-height:1.8;color:rgba(255,255,255,.58);
  margin-top:16px;max-width:320px;
}
.footer-contact{

  margin-top:18px;font-size:14px;color:rgba(255,255,255,.72);
  display:flex;flex-direction:column;gap:4px;
}
.footer-contact span{font-size:12px;color:rgba(255,255,255,.42);letter-spacing:.06em}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62)}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{padding:0 22px}
  .nav-wrap{padding:0 22px}
}
@media (max-width:1024px){
  .main-nav{display:none}
  .hamburger{display:flex}
  .nav-actions .btn--sm{display:none}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-visual{order:2;max-width:520px}
  .flow-row,
  .flow-row:nth-child(even){grid-template-columns:1fr;gap:20px}
  .flow-row:nth-child(even) .flow-media{order:0}
  .flow-media img{aspect-ratio:16/9}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:72px 0}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:56px 0}
  .page-hero{padding:36px 0 48px}
  .hero-float{left:auto;right:12px;bottom:-14px;padding:10px 14px}
  .hero-float strong{font-size:22px}
  .intro-card{padding:22px}
  .cta-band{padding:26px 22px}
  .faq-q{font-size:16px;padding:14px 18px}
  .faq-a p{padding:0 18px 20px}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .nav-wrap{padding:0 18px}
  .btn{width:100%}
  .nav-actions{gap:6px}
  .hero-meta .badge{font-size:11px}
  .pills{gap:8px}
  .pill{font-size:14px;padding:8px 14px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --brand:#E9552B;
  --brand-dark:#C23D16;
  --brand-tint:#FCEBE4;
  --accent:#1FAE93;
  --accent-tint:#E6F7F3;
  --ink-900:#15181D;
  --ink-700:#333A44;
  --ink-500:#6B7480;
  --ink-300:#9AA3AF;
  --line:#E5E0D8;
  --bg:#FBF9F6;
  --bg-soft:#F2EDE5;
  --surface:#FFFFFF;
  --dark:#14171C;
  --radius-card:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(21,24,29,.05),0 4px 12px rgba(21,24,29,.05);
  --shadow-md:0 10px 30px rgba(21,24,29,.10);
  --shadow-brand:0 8px 22px rgba(233,85,43,.28);
  --ease:200ms ease;
  --container:1180px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:16px;color:var(--ink-900);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:1px solid transparent;
  border-radius:var(--radius-sm);font-size:16px;font-weight:600;
  cursor:pointer;transition:background var(--ease),color var(--ease),border-color var(--ease),
    box-shadow var(--ease),transform var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 2px 8px rgba(233,85,43,.18);}
.btn--primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-brand);}
.btn--primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(233,85,43,.2);}
.btn--ghost{background:transparent;color:var(--ink-900);border-color:var(--line);}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-tint);}
.btn--ghost:active{background:#F8DED3;}
.btn--sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn--block{width:100%;}
.btn:disabled,.btn[disabled]{background:var(--bg-soft);color:var(--ink-300);border-color:var(--line);cursor:not-allowed;box-shadow:none;transform:none;}
.btn .ico{width:16px;height:16px;flex:none;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-weight:600;font-size:15px;
  transition:color var(--ease);
}
.link-arrow svg{width:16px;height:16px;transition:transform var(--ease);}
.link-arrow:hover{color:var(--brand-dark);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--radius-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--brand-tint);color:var(--brand-dark);white-space:nowrap;
}
.badge--accent{background:var(--accent-tint);color:#12836F;}
.badge--solid{background:var(--brand);color:#fff;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,249,246,.92);
  backdrop-filter:saturate(150%) blur(10px);
  -webkit-backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);border-bottom-color:var(--line);}
.header__inner{display:flex;align-items:center;gap:28px;height:68px;transition:height var(--ease);}
.site-header.is-scrolled .header__inner{height:60px;}

.logo{display:inline-flex;align-items:center;gap:10px;flex:none;}
.logo__mark{
  width:30px;height:30px;border-radius:9px;flex:none;
  background:linear-gradient(140deg,var(--brand) 0%,#F2703F 100%);
  color:#fff;font-weight:800;font-size:16px;
  display:grid;place-items:center;
  box-shadow:0 4px 10px rgba(233,85,43,.25);
}
.logo__text{display:flex;flex-direction:column;line-height:1.1;}
.logo__text strong{font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--ink-900);}
.logo__text em{font-style:normal;font-size:11px;color:var(--ink-500);letter-spacing:.08em;}

.primary-nav{display:flex;align-items:center;gap:26px;margin-left:12px;}
.primary-nav a{
  position:relative;font-size:15px;color:var(--ink-700);
  padding:6px 0;transition:color var(--ease);white-space:nowrap;
}
.primary-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.primary-nav a:hover{color:var(--brand-dark);}
.primary-nav a:hover::after{transform:scaleX(1);}
.primary-nav a.is-active{color:var(--ink-900);font-weight:700;}
.primary-nav a.is-active::after{transform:scaleX(1);}

.header__actions{margin-left:auto;display:flex;align-items:center;gap:12px;}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  background:var(--surface);border-radius:10px;cursor:pointer;
  padding:0;place-items:center;transition:border-color var(--ease),background var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;margin:3px auto;transition:transform var(--ease),opacity var(--ease);}
.nav-toggle:hover{border-color:var(--brand);background:var(--brand-tint);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

.drawer-mask{
  position:fixed;inset:0;background:rgba(21,24,29,.5);z-index:90;
  opacity:0;transition:opacity var(--ease);
}
.drawer-mask.is-open{opacity:1;}
.drawer{
  position:fixed;top:0;left:0;right:0;z-index:95;
  background:var(--surface);border-radius:0 0 16px 16px;
  padding:18px 20px 24px;
  transform:translateY(-104%);transition:transform 200ms ease;
  box-shadow:var(--shadow-md);
}
.drawer.is-open{transform:translateY(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer__close{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line);
  background:var(--surface);cursor:pointer;display:grid;place-items:center;color:var(--ink-700);
  transition:background var(--ease),color var(--ease);
}
.drawer__close:hover{background:var(--bg-soft);color:var(--brand-dark);}
.drawer__search{
  height:44px;width:100%;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:0 14px;margin-bottom:16px;background:var(--bg);
}
.drawer__search:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(233,85,43,.12);outline:none;}
.drawer nav{display:flex;flex-direction:column;gap:2px;margin-bottom:18px;}
.drawer nav a{
  padding:12px 10px;border-radius:var(--radius-sm);font-size:16px;color:var(--ink-700);
  transition:background var(--ease),color var(--ease);
}
.drawer nav a:hover{background:var(--brand-tint);color:var(--brand-dark);}
.drawer nav a.is-active{background:var(--brand-tint);color:var(--brand-dark);font-weight:700;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--bg-soft);border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--ink-500);}
.crumb a{color:var(--ink-500);transition:color var(--ease);}
.crumb a:hover{color:var(--brand-dark);}
.crumb .sep{color:var(--ink-300);}
.crumb .current{color:var(--ink-700);font-weight:600;}

/* ---------- 类目头部 ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:72px 0 64px;
  background:
    radial-gradient(circle at 88% 12%, rgba(233,85,43,.09) 0%, rgba(233,85,43,0) 46%),
    linear-gradient(180deg,#FBF9F6 0%,#F6F1E9 100%);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(21,24,29,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(21,24,29,.05) 1px,transparent 1px);
  background-size:44px 44px;opacity:.5;
  mask-image:radial-gradient(circle at 70% 30%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 70% 30%,#000 0%,transparent 72%);
}
.cat-hero .container{position:relative;z-index:1;}
.cat-hero__grid{display:grid;grid-template-columns:6fr 4fr;gap:52px;align-items:center;}
.cat-hero__badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.cat-hero h1{
  font-size:clamp(2rem,3.4vw,3rem);line-height:1.2;font-weight:800;letter-spacing:-.01em;
  margin-bottom:18px;color:var(--ink-900);
}
.cat-hero h1 .hl{color:var(--brand);}
.cat-hero__lead{font-size:17px;line-height:1.8;color:var(--ink-500);max-width:540px;}
.cat-hero__meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.pill-stat{
  display:inline-flex;align-items:baseline;gap:6px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:7px 16px;font-size:13px;color:var(--ink-500);box-shadow:var(--shadow-sm);
}
.pill-stat b{font-size:16px;color:var(--brand);font-variant-numeric:tabular-nums;}
.cat-hero__figure{position:relative;}
.cat-hero__figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:18px;
  box-shadow:var(--shadow-md);background:var(--bg-soft);
}
.cat-hero__figure::before{
  content:"";position:absolute;top:-14px;right:-14px;width:96px;height:96px;
  border:2px dashed rgba(233,85,43,.35);border-radius:20px;z-index:-1;
}
.float-tag{
  position:absolute;left:-16px;bottom:-18px;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:12px 16px;box-shadow:var(--shadow-md);display:flex;align-items:center;gap:10px;
}
.float-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none;}
.float-tag span{font-size:13px;color:var(--ink-700);font-weight:600;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section--soft{background:var(--bg-soft);}
.section--tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .badge{margin-bottom:14px;}
.section-head h2{
  font-size:clamp(1.5rem,2.4vw,2.1rem);line-height:1.32;font-weight:700;color:var(--ink-900);
  margin-bottom:12px;
}
.section-head p{font-size:16px;color:var(--ink-500);line-height:1.8;}

.lead-text{max-width:800px;font-size:17px;line-height:1.9;color:var(--ink-700);}
.lead-text + .lead-text{margin-top:16px;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:21px;top:18px;bottom:26px;width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(233,85,43,.28) 55%,var(--line) 100%);
  border-radius:2px;
}
.tl-item{position:relative;padding:0 0 34px 68px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:6px;top:0;width:32px;height:32px;border-radius:50%;
  background:var(--surface);border:2px solid var(--brand);
  display:grid;place-items:center;font-size:12px;font-weight:800;color:var(--brand-dark);
  font-variant-numeric:tabular-nums;transition:background var(--ease),color var(--ease),transform var(--ease);
}
.tl-item:hover .tl-dot{background:var(--brand);color:#fff;transform:scale(1.06);}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 26px;box-shadow:var(--shadow-sm);
  transition:box-shadow var(--ease),border-color var(--ease),transform var(--ease);
}
.tl-item:hover .tl-card{box-shadow:var(--shadow-md);border-color:#F3CFC0;transform:translateY(-2px);}
.tl-card h3{font-size:19px;line-height:1.45;font-weight:700;margin-bottom:8px;color:var(--ink-900);}
.tl-card p{font-size:15.5px;line-height:1.8;color:var(--ink-500);}
.tl-note{
  display:inline-flex;align-items:center;gap:7px;margin-top:14px;
  font-size:13px;color:#12836F;background:var(--accent-tint);
  padding:5px 12px;border-radius:var(--radius-pill);font-weight:600;
}
.tl-note svg{width:14px;height:14px;flex:none;}

/* ---------- 核对清单卡 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.check-card{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:12px;padding:22px 20px;box-shadow:var(--shadow-sm);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.check-card:hover{border-color:var(--brand);box-shadow:var(--shadow-md);}
.check-card .ico-box{
  width:36px;height:36px;border-radius:10px;background:var(--accent-tint);color:#12836F;
  display:grid;place-items:center;margin-bottom:14px;
}
.check-card .ico-box svg{width:19px;height:19px;}
.check-card h3{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--ink-900);}
.check-card p{font-size:14px;line-height:1.7;color:var(--ink-500);}

/* ---------- FAQ ---------- */
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;justify-content:space-between;
  background:none;border:0;text-align:left;cursor:pointer;
  padding:18px 24px;min-height:56px;font-size:17px;font-weight:600;color:var(--ink-900);
  transition:background var(--ease),color var(--ease);
}
.faq-q:hover{background:var(--brand-tint);color:var(--brand-dark);}
.faq-q .plus{
  width:24px;height:24px;flex:none;display:grid;place-items:center;color:var(--brand);
  transition:transform 220ms ease;
}
.faq-q .plus svg{width:16px;height:16px;}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height 220ms ease,opacity 220ms ease;}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a__inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-700);}

/* ---------- 相关分类胶囊 ---------- */
.related-nav{display:flex;flex-wrap:wrap;gap:12px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:var(--radius-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:15px;font-weight:600;color:var(--ink-700);
  transition:background var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.chip svg{width:15px;height:15px;color:var(--ink-300);transition:color var(--ease),transform var(--ease);}
.chip:hover{background:var(--brand-tint);border-color:var(--brand);color:var(--brand-dark);box-shadow:var(--shadow-sm);transform:translateY(-1px);}
.chip:hover svg{color:var(--brand);transform:translateX(2px);}
.chip.is-current{background:var(--ink-900);border-color:var(--ink-900);color:#fff;}
.chip.is-current svg{color:rgba(255,255,255,.6);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--dark);color:#fff;border-radius:20px;
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(233,85,43,.35) 0%,rgba(233,85,43,0) 70%);
}
.cta-band h2{font-size:clamp(1.25rem,2vw,1.6rem);line-height:1.4;font-weight:700;margin-bottom:8px;color:#fff;}
.cta-band p{font-size:15px;color:rgba(255,255,255,.68);line-height:1.75;}
.cta-band__actions{display:flex;gap:12px;flex:none;position:relative;z-index:1;}
.cta-band .btn--ghost{color:#fff;border-color:rgba(255,255,255,.28);}
.cta-band .btn--ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:#15181D;color:rgba(255,255,255,.78);padding-top:64px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:3fr 2fr 2fr 3fr;gap:40px;padding-bottom:44px;}
.footer-brand .logo__text strong{color:#fff;}
.footer-brand .logo__text em{color:rgba(255,255,255,.55);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px;}
.footer-contact{margin-top:18px;font-size:14px;color:rgba(255,255,255,.78);}
.footer-contact span{display:block;font-size:12px;letter-spacing:.06em;color:rgba(255,255,255,.45);margin-bottom:4px;}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);transition:color var(--ease);}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 弹层表单 ---------- */
.modal-mask{
  position:fixed;inset:0;z-index:120;background:rgba(21,24,29,.55);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
  display:none;align-items:flex-start;justify-content:center;padding:10vh 20px 40px;
  overflow-y:auto;
}
.modal-mask.is-open{display:flex;}
.modal{
  width:100%;max-width:480px;background:var(--surface);border-radius:16px;
  padding:28px;box-shadow:var(--shadow-md);position:relative;
  animation:pop 200ms ease;
}
@keyframes pop{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}
.modal__close{
  position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:var(--surface);cursor:pointer;
  display:grid;place-items:center;color:var(--ink-500);transition:background var(--ease),color var(--ease);
}
.modal__close:hover{background:var(--bg-soft);color:var(--brand-dark);}
.modal h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.modal .modal__sub{font-size:14px;color:var(--ink-500);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-700);margin-bottom:6px;}
.field input,.field textarea,.field select{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:12px 14px;background:var(--surface);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{height:auto;min-height:96px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(233,85,43,.12);
}
.field.has-error input,.field.has-error textarea{border-color:var(--brand-dark);}
.field .err{display:none;font-size:12px;color:var(--brand-dark);margin-top:5px;}
.field.has-error .err{display:block;}
.check-line{display:flex;align-items:flex-start;gap:9px;margin-bottom:18px;font-size:13px;color:var(--ink-500);line-height:1.6;}
.check-line input{width:16px;height:16px;margin-top:3px;flex:none;accent-color:var(--brand);}
.form-note{font-size:13px;color:var(--ink-500);line-height:1.7;margin-top:14px;}
.form-note a{color:var(--ink-500);text-decoration:underline;text-underline-offset:3px;}
.form-note a:hover{color:var(--brand-dark);}
.form-success{text-align:center;padding:26px 6px;}
.form-success .ok-ico{
  width:52px;height:52px;border-radius:50%;background:var(--accent-tint);color:#12836F;
  display:grid;place-items:center;margin:0 auto 16px;
}
.form-success p{font-size:16px;font-weight:600;color:var(--ink-900);margin-bottom:18px;}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .primary-nav{gap:18px;}
  .cat-hero__grid{gap:36px;}
}
@media (max-width:1024px){
  .primary-nav{display:none;}
  .nav-toggle{display:grid;}
  .header__actions .btn--primary{display:none;}
  .cat-hero__grid{grid-template-columns:1fr;gap:36px;}
  .cat-hero__figure{order:2;}
  .cat-hero{padding:52px 0 56px;}
  .check-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px;}
  .cta-band__actions{width:100%;flex-wrap:wrap;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .cat-hero h1{font-size:clamp(1.7rem,6vw,2.2rem);}
  .check-grid{grid-template-columns:1fr;}
  .tl-item{padding-left:56px;}
  .timeline::before{left:15px;}
  .tl-dot{left:0;width:30px;height:30px;}
  .tl-card{padding:18px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-q{padding:16px 18px;font-size:16px;}
  .faq-a__inner{padding:0 18px 20px;}
  .float-tag{left:0;bottom:-14px;}
  .modal{padding:22px;}
}
@media (max-width:520px){
  .btn{height:46px;padding:0 18px;font-size:15px;}
  .cta-band__actions .btn{width:100%;}
  .related-nav .chip{width:100%;justify-content:space-between;}
  .cat-hero__meta{flex-direction:column;align-items:flex-start;}
  .modal-mask{padding:0;align-items:flex-end;}
  .modal{max-width:100%;border-radius:16px 16px 0 0;max-height:92vh;overflow-y:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* roulang page: category3 */
:root{
  --brand:#E9552B;
  --brand-dark:#C23D16;
  --brand-tint:#FCEBE4;
  --accent:#1FAE93;
  --accent-tint:#E6F7F3;
  --ink-900:#15181D;
  --ink-700:#333A44;
  --ink-500:#6B7480;
  --ink-300:#9AA3AF;
  --line:#E5E0D8;
  --bg:#FBF9F6;
  --bg-soft:#F2EDE5;
  --surface:#FFFFFF;
  --dark:#14171C;
  --radius-card:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(21,24,29,.05),0 4px 12px rgba(21,24,29,.05);
  --shadow-md:0 10px 30px rgba(21,24,29,.10);
  --shadow-brand:0 8px 22px rgba(233,85,43,.28);
  --ease:180ms ease;
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:200;}
.skip-link:focus{left:0;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:transparent;
  transition:background var(--ease),box-shadow var(--ease),height var(--ease);
}
.site-header.is-stuck{
  background:rgba(251,249,246,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  box-shadow:var(--shadow-sm);
}
.nav-inner{
  max-width:1240px;margin:0 auto;padding:0 24px;
  height:72px;display:flex;align-items:center;gap:32px;
  transition:height var(--ease);
}
.site-header.is-stuck .nav-inner{height:60px;}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo__mark{
  width:32px;height:32px;border-radius:9px;
  background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;letter-spacing:.02em;
  box-shadow:var(--shadow-brand);
  flex:none;
}
.logo__text{display:flex;flex-direction:column;line-height:1.15;}
.logo__text strong{font-size:16px;font-weight:800;letter-spacing:-.01em;}
.logo__text em{font-style:normal;font-size:11px;color:var(--ink-500);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-links a{
  font-size:15px;color:var(--ink-700);position:relative;padding:6px 0;
  transition:color var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-links a:hover{color:var(--ink-900);}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--ink-900);font-weight:600;}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:36px;height:36px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-700);transition:background var(--ease),color var(--ease);
}
.icon-btn:hover{background:var(--bg-soft);color:var(--ink-900);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-brand);}
.btn--primary:hover{background:var(--brand-dark);transform:translateY(-1px);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;color:var(--ink-900);border:1px solid var(--line);}
.btn--ghost:hover{color:var(--brand-dark);border-color:var(--brand);background:var(--brand-tint);}
.btn--full{width:100%;height:48px;}
.btn[disabled]{background:var(--bg-soft);color:var(--ink-300);border-color:var(--bg-soft);cursor:not-allowed;box-shadow:none;transform:none;}
.burger{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;color:var(--ink-900);
  border:1px solid var(--line);background:rgba(255,255,255,.7);
}
.burger:hover{background:var(--bg-soft);}
.drawer{
  position:fixed;inset:0;z-index:130;display:none;
}
.drawer.is-open{display:block;}
.drawer__mask{position:absolute;inset:0;background:rgba(21,24,29,.45);}
.drawer__panel{
  position:relative;background:#fff;border-radius:0 0 16px 16px;
  padding:20px 20px 26px;box-shadow:var(--shadow-md);
  animation:drawerIn 220ms ease both;
}
@keyframes drawerIn{from{opacity:0;transform:translateY(-14px);}to{opacity:1;transform:translateY(0);}}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer__links{display:flex;flex-direction:column;}
.drawer__links a{
  padding:14px 4px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--ink-700);
}
.drawer__links a.is-active{color:var(--brand-dark);font-weight:600;}
.drawer__cta{margin-top:18px;}
.drawer__search{
  margin-top:16px;display:flex;align-items:center;gap:10px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:0 14px;height:46px;background:var(--bg);
}
.drawer__search input{border:0;background:transparent;outline:none;width:100%;font-size:15px;}

/* ---------- breadcrumb & head ---------- */
.crumb-bar{background:var(--bg-soft);padding:12px 0;margin-top:72px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);}
.crumb a{color:var(--ink-500);transition:color var(--ease);}
.crumb a:hover{color:var(--brand-dark);}
.crumb span[aria-current]{color:var(--ink-700);font-weight:600;}

.cat-head{padding:64px 0 20px;}
.cat-head__grid{display:grid;grid-template-columns:6fr 4fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:var(--radius-pill);
  background:var(--brand-tint);color:var(--brand-dark);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.cat-head h1{
  margin-top:16px;
  font-size:clamp(2rem,3.6vw,3.25rem);
  line-height:1.2;font-weight:800;letter-spacing:-.01em;
}
.cat-head h1 mark{background:none;color:var(--brand);}
.cat-head__sub{margin-top:16px;font-size:18px;line-height:1.7;color:var(--ink-700);max-width:560px;}
.cat-head__media{position:relative;}
.cat-head__media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:18px;box-shadow:var(--shadow-md);
}
.cat-head__tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(255,255,255,.94);border-radius:var(--radius-sm);
  padding:10px 14px;box-shadow:var(--shadow-sm);
  display:flex;align-items:baseline;gap:8px;
}
.cat-head__tag strong{font-size:20px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;}
.cat-head__tag span{font-size:12px;color:var(--ink-500);}

/* ---------- lead ---------- */
.lead-block{padding:8px 0 56px;}
.lead-block__box{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 32px;box-shadow:var(--shadow-sm);
  max-width:860px;
}
.lead-block__box p{font-size:16px;color:var(--ink-700);line-height:1.85;}
.lead-block__box p + p{margin-top:12px;}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section--soft{background:var(--bg-soft);}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{
  margin-top:14px;font-size:clamp(1.5rem,2.4vw,2.1rem);
  line-height:1.32;font-weight:700;letter-spacing:-.005em;
}
.section-head p{margin-top:12px;font-size:16px;color:var(--ink-500);line-height:1.7;}

/* ---------- numbered list ---------- */
.num-list{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
}
.num-row{
  display:grid;grid-template-columns:96px 1fr 32px;gap:20px;align-items:center;
  padding:26px 28px;border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.num-row:last-child{border-bottom:0;}
.num-row:hover{background:var(--brand-tint);}
.num-row__idx{
  font-size:38px;font-weight:800;line-height:1;
  color:var(--brand);opacity:.34;font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  transition:opacity var(--ease);
}
.num-row:hover .num-row__idx{opacity:1;}
.num-row__body h3{font-size:19px;font-weight:600;line-height:1.45;color:var(--ink-900);}
.num-row__body h3 .tag{
  display:inline-block;vertical-align:middle;margin-left:10px;
  height:22px;line-height:22px;padding:0 10px;border-radius:var(--radius-pill);
  background:var(--accent-tint);color:var(--accent);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.num-row__body p{margin-top:8px;font-size:15px;line-height:1.8;color:var(--ink-700);}
.num-row__arrow{
  width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:var(--ink-300);transition:color var(--ease),transform var(--ease),background var(--ease);
}
.num-row:hover .num-row__arrow{color:var(--brand);transform:translateX(3px);background:rgba(255,255,255,.7);}

/* ---------- note strip ---------- */
.note-strip{
  margin-top:28px;display:flex;gap:16px;align-items:flex-start;
  background:var(--accent-tint);border-radius:var(--radius-card);
  padding:20px 24px;color:var(--ink-700);font-size:15px;line-height:1.8;
}
.note-strip svg{flex:none;color:var(--accent);margin-top:3px;}

/* ---------- related ---------- */
.related{padding:0 0 8px;}
.related h2{font-size:20px;font-weight:700;}
.related .pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 18px;border-radius:var(--radius-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:15px;color:var(--ink-700);
  transition:border-color var(--ease),color var(--ease),background var(--ease),transform var(--ease);
}
.pill:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-tint);transform:translateY(-1px);}
.pill.is-current{background:var(--ink-900);border-color:var(--ink-900);color:#fff;}
.pill.is-current:hover{background:var(--ink-900);color:#fff;transform:none;}

/* ---------- faq ---------- */
.faq{margin-top:8px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);}
.faq__item + .faq__item{border-top:1px solid var(--line);}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:18px 24px;min-height:56px;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink-900);
  transition:color var(--ease),background var(--ease);
}
.faq__q:hover{color:var(--brand-dark);background:var(--brand-tint);}
.faq__icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-soft);color:var(--ink-700);
  transition:transform var(--ease),background var(--ease),color var(--ease);
}
.faq__item.is-open .faq__icon{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq__a{max-height:0;overflow:hidden;opacity:0;transition:max-height 220ms ease,opacity 220ms ease;}
.faq__item.is-open .faq__a{opacity:1;}
.faq__a p{padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--ink-700);}

/* ---------- cta ---------- */
.cta-bar{
  margin:72px 0 0;background:var(--dark);border-radius:18px;
  padding:36px 40px;display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  color:#fff;
}
.cta-bar__text{flex:1 1 320px;}
.cta-bar__text h2{font-size:clamp(1.25rem,2vw,1.6rem);font-weight:700;line-height:1.4;}
.cta-bar__text p{margin-top:8px;font-size:15px;color:rgba(255,255,255,.62);}
.cta-bar .btn--primary{box-shadow:none;}

/* ---------- footer ---------- */
.site-footer{background:#15181D;color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:3fr 2fr 2fr 3fr;gap:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo__text strong{color:#fff;}
.footer-brand .logo__text em{color:rgba(255,255,255,.55);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:300px;}
.footer-contact{margin-top:16px;font-size:14px;color:#fff;}
.footer-contact span{display:block;font-size:12px;color:rgba(255,255,255,.45);letter-spacing:.04em;margin-bottom:4px;}
.site-footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62);transition:color var(--ease);}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:200;display:none;}
.modal.is-open{display:block;}
.modal__mask{position:absolute;inset:0;background:rgba(21,24,29,.55);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);}
.modal__panel{
  position:relative;margin:10vh auto 0;width:calc(100% - 40px);max-width:480px;
  background:#fff;border-radius:16px;padding:28px;box-shadow:var(--shadow-md);
  max-height:82vh;overflow:auto;animation:modalIn 200ms ease both;
}
@keyframes modalIn{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}
.modal__close{
  position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;color:var(--ink-500);
  transition:background var(--ease),color var(--ease);
}
.modal__close:hover{background:var(--bg-soft);color:var(--ink-900);}
.modal__panel h3{font-size:18px;font-weight:700;padding-right:36px;}
.modal__panel .modal__sub{margin-top:6px;font-size:14px;color:var(--ink-500);}
.form{margin-top:20px;display:grid;gap:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-700);margin-bottom:6px;}
.field input,.field textarea,.field select{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:12px 14px;background:#fff;color:var(--ink-900);font-size:15px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{height:auto;min-height:96px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(233,85,43,.12);
}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--brand-dark);}
.field__err{display:none;margin-top:6px;font-size:12px;color:var(--brand-dark);}
.field.has-error .field__err{display:block;}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-500);line-height:1.7;}
.check input{width:16px;height:16px;margin-top:4px;flex:none;accent-color:var(--brand);}
.privacy-note{font-size:13px;color:var(--ink-500);line-height:1.7;margin-top:4px;}
.privacy-note a{color:var(--ink-700);text-decoration:underline;text-underline-offset:3px;}
.form-success{display:none;text-align:center;padding:26px 8px;}
.form-success.is-visible{display:block;}
.form-success svg{color:var(--accent);}
.form-success p{margin-top:12px;font-size:16px;font-weight:600;color:var(--ink-900);}
.form-success button{margin-top:16px;}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .nav-links{gap:18px;}
  .nav-links a{font-size:14px;}
  .cat-head__grid{gap:36px;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-right .btn{display:none;}
  .burger{display:inline-flex;}
  .cat-head__grid{grid-template-columns:1fr;gap:28px;}
  .cat-head__media{order:2;}
  .cat-head__media img{aspect-ratio:16/9;max-height:300px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .crumb-bar{margin-top:72px;}
  .cat-head{padding:44px 0 12px;}
  .section{padding:56px 0;}
  .num-row{grid-template-columns:64px 1fr;padding:22px 18px;gap:14px;}
  .num-row__idx{font-size:30px;}
  .num-row__arrow{display:none;}
  .lead-block__box{padding:22px;}
  .cta-bar{padding:28px 24px;border-radius:14px;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .faq__q{font-size:16px;padding:16px 18px;}
  .faq__a p{padding:0 18px 18px;}
  .modal__panel{margin:auto 0 0;width:100%;max-width:100%;border-radius:16px 16px 0 0;position:absolute;bottom:0;max-height:88vh;}
  .modal.is-open{display:flex;align-items:flex-end;}
}
@media (max-width:520px){
  .cat-head h1{font-size:1.85rem;}
  .cat-head__sub{font-size:16px;}
  .num-row{grid-template-columns:1fr;gap:8px;}
  .num-row__idx{font-size:24px;}
  .section-head{margin-bottom:26px;}
  .lead-block__box{padding:18px;}
  .note-strip{padding:16px 18px;font-size:14px;}
  .related .pill{height:40px;padding:0 14px;font-size:14px;}
  .cta-bar .btn{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}