/* roulang page: index */
/* ===================== 设计令牌 ===================== */
:root{
  --bg:#F6F4EF;
  --bg-2:#EDEAE3;
  --ink:#12110F;
  --ink-2:#6E6B63;
  --ink-3:#A8A49A;
  --line:#DEDAD1;
  --lime:#C6F24E;
  --orange:#E4572E;
  --orange-d:#C9441F;
  --dark:#12110F;
  --dark-2:#A8A49A;
  --dark-line:rgba(246,244,239,.18);
  --r-card:4px;
  --r-btn:3px;
  --r-pill:999px;
  --r-modal:8px;
  --sh-card:0 8px 24px rgba(18,17,15,.06);
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --sec:110px;

  /* Bootstrap 变量覆盖 */
  --bs-body-font-family:var(--sans);
  --bs-body-color:var(--ink);
  --bs-body-bg:var(--bg);
  --bs-border-color:var(--line);
  --bs-border-radius:4px;
  --bs-link-color:var(--ink);
  --bs-link-hover-color:var(--orange);
  --bs-primary:#E4572E;
  --bs-font-sans-serif:var(--sans);
  --bs-body-font-size:16px;
  --bs-body-line-height:1.9;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--orange);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
::selection{background:var(--lime);color:var(--ink);}

/* ===================== 通用容器与排版 ===================== */
.container-x{max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section-sm{padding:72px 0;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.01em;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.08em;color:var(--ink-2);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--ink-3);display:inline-block;}
.dot-lime{width:8px;height:8px;background:var(--lime);display:inline-block;flex:0 0 auto;}
.h2{font-size:clamp(26px,3vw,36px);font-weight:800;line-height:1.2;letter-spacing:-.01em;}
.h3{font-size:20px;font-weight:700;line-height:1.4;}
.lead-txt{font-size:17px;color:var(--ink-2);line-height:1.9;}
.hr-thin{height:1px;background:var(--line);border:0;}

/* ===================== 按钮 ===================== */
.btn-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 26px;
  background:var(--orange);color:var(--ink);
  border:1px solid var(--orange);border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  cursor:pointer;transition:background .25s ease,transform .25s ease,border-color .25s ease;
}
.btn-ink:hover{background:var(--orange-d);border-color:var(--orange-d);color:var(--ink);transform:translateY(-2px);}
.btn-ink:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 26px;
  background:transparent;color:var(--ink);
  border:1px solid var(--ink);border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  cursor:pointer;transition:background .25s ease,color .25s ease,transform .25s ease;
}
.btn-ghost:hover{background:var(--ink);color:var(--bg);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.link-line{
  display:inline-flex;align-items:center;gap:6px;
  position:relative;font-size:15px;font-weight:600;color:var(--ink);
  padding-bottom:2px;
}
.link-line::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.link-line:hover::after{transform:scaleX(1);}
.link-line .arrow{transition:transform .3s cubic-bezier(.2,.7,.2,1);}
.link-line:hover .arrow{transform:translateX(4px);}
.text-link{
  position:relative;font-size:15px;color:var(--ink);font-weight:500;
  padding-bottom:2px;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.text-link:hover::after{transform:scaleX(1);}

/* ===================== 标签 ===================== */
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  background:var(--lime);color:var(--ink);
  border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.08em;font-weight:500;white-space:nowrap;
}
.tag-line{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.08em;color:var(--ink-2);white-space:nowrap;
}

/* ===================== 顶部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(246,244,239,.92);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
  backdrop-filter:saturate(180%) blur(10px);
}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  white-space:nowrap;
}
.brand:hover{color:var(--ink);}
.brand-dot{width:8px;height:8px;background:var(--lime);flex:0 0 auto;transition:transform .3s ease;}
.brand:hover .brand-dot{transform:scale(1.25);}
.nav-menu{display:flex;align-items:center;gap:34px;}
.nav-menu a{
  position:relative;font-size:15px;letter-spacing:.02em;color:var(--ink);
  padding:6px 0;display:inline-flex;align-items:center;gap:8px;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.active{font-weight:700;}
.nav-menu a.active::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);
  position:absolute;left:-14px;top:50%;transform:translateY(-50%);
}
.nav-menu a.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:20px;}
.nav-divider{width:1px;height:20px;background:var(--line);}
.nav-cta{font-size:15px;font-weight:700;color:var(--ink);display:inline-flex;align-items:center;gap:8px;}
.nav-cta:hover{color:var(--orange);}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1px;background:var(--ink);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:1200;background:var(--bg);
  display:flex;flex-direction:column;
  padding:22px 24px 40px;
  transform:translateX(102%);
  transition:transform .38s cubic-bezier(.2,.7,.2,1);
  visibility:hidden;
}
.drawer.open{transform:translateX(0);visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:48px;margin-bottom:28px;}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);
  font-size:20px;color:var(--ink);cursor:pointer;line-height:1;
}
.drawer-nav{border-top:1px solid var(--line);}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:22px 0;border-bottom:1px solid var(--line);
  font-size:24px;font-weight:700;letter-spacing:-.01em;color:var(--ink);
}
.drawer-nav a span{font-family:var(--mono);font-size:13px;color:var(--ink-3);}
.drawer-foot{margin-top:auto;font-size:14px;color:var(--ink-2);line-height:2;}

/* ===================== 首屏 ===================== */
.hero{padding:84px 0 0;}
.hero-eyebrow{margin-bottom:22px;}
.hero-title{
  font-size:clamp(38px,5.4vw,68px);
  font-weight:800;line-height:1.06;letter-spacing:-.02em;
  margin:0 0 24px;
}
.hero-title .mark{position:relative;display:inline-block;}
.hero-title .mark::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:10px;
  background:var(--lime);z-index:-1;
}
.hero-sub{font-size:18px;color:var(--ink-2);line-height:1.85;max-width:520px;margin-bottom:34px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px 26px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-card);
  box-shadow:inset 0 0 0 1px rgba(18,17,15,.08);
  pointer-events:none;
}
.hero-media-cap{
  margin-top:14px;font-size:13px;color:var(--ink-2);
  display:flex;align-items:center;gap:8px;
}
.trust-bar{margin-top:76px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.trust-inner{display:flex;flex-wrap:wrap;gap:14px 44px;padding:20px 0;font-size:14px;color:var(--ink-2);}
.trust-inner li{display:inline-flex;align-items:center;gap:10px;}
.trust-inner li::before{content:"";width:6px;height:6px;background:var(--lime);flex:0 0 auto;}

/* ===================== 痛点提问区 ===================== */
.pain-side{position:sticky;top:112px;}
.pain-side .h2{margin-bottom:18px;}
.pain-list{border-top:1px solid var(--line);}
.pain-item{
  display:flex;align-items:flex-start;gap:24px;
  padding:26px 12px 26px 0;border-bottom:1px solid var(--line);
  transition:transform .3s cubic-bezier(.2,.7,.2,1),background .3s ease;
}
.pain-item:hover{transform:translateX(8px);background:var(--bg-2);}
.pain-no{
  font-family:var(--mono);font-size:13px;font-weight:600;color:var(--ink-2);
  padding-top:6px;flex:0 0 34px;
}
.pain-no b{color:var(--ink);}
.pain-q{font-size:18px;font-weight:600;line-height:1.7;}
.pain-note{font-size:14px;color:var(--ink-2);margin-top:6px;}

/* ===================== 方案卡片 ===================== */
.plan-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px;height:100%;display:flex;flex-direction:column;
  transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
}
.plan-card:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-card);}
.plan-no{
  font-family:var(--mono);font-size:13px;font-weight:600;color:var(--ink-2);
  letter-spacing:.08em;transition:transform .3s ease;display:inline-block;
}
.plan-card:hover .plan-no{transform:scale(1.04);color:var(--ink);}
.plan-card .h3{margin:16px 0 12px;}
.plan-card p{font-size:15px;color:var(--ink-2);line-height:1.85;margin-bottom:22px;}
.plan-card .link-line{margin-top:auto;}
.plan-media{border-radius:var(--r-card);overflow:hidden;margin:-4px 0 22px;}
.plan-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1);}
.plan-card:hover .plan-media img{transform:scale(1.03);}
.plan-wide{
  background:var(--dark);color:var(--bg);border-radius:var(--r-card);
  overflow:hidden;height:100%;
}
.plan-wide-media{height:100%;min-height:260px;}
.plan-wide-media img{width:100%;height:100%;object-fit:cover;opacity:.9;}
.plan-wide-body{padding:36px 34px;display:grid;gap:30px;}
.plan-wide-item{display:flex;flex-direction:column;gap:10px;}
.plan-wide-item .plan-no{color:var(--lime);}
.plan-wide-item .h3{color:var(--bg);}
.plan-wide-item p{font-size:15px;color:var(--dark-2);line-height:1.85;}
.plan-wide-item .link-line{color:var(--lime);}
.plan-wide-item .link-line:hover{color:var(--lime);}

/* ===================== 数据区 ===================== */
.stats{background:var(--dark);color:var(--bg);padding:92px 0;}
.stats-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:56px;}
.stats-head .h2{color:var(--bg);}
.stats-head p{font-size:15px;color:var(--dark-2);max-width:420px;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:0 30px;border-left:1px solid var(--dark-line);}
.stat:first-child{border-left:0;padding-left:0;}
.stat-num{
  font-family:var(--mono);font-weight:600;
  font-size:clamp(38px,4.6vw,60px);line-height:1;
  color:var(--lime);letter-spacing:-.02em;
}
.stat-label{margin-top:14px;font-size:13px;color:var(--dark-2);letter-spacing:.02em;line-height:1.7;}

/* ===================== 内容列表 ===================== */
.sec-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:20px;padding-bottom:28px;border-bottom:1px solid var(--line);margin-bottom:44px;
}
.sec-head .h2{margin-bottom:10px;}
.sec-head p{font-size:15px;color:var(--ink-2);}
.news-lead{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
}
.news-lead:hover{border-color:var(--ink);box-shadow:var(--sh-card);transform:translateY(-2px);}
.news-lead .media{overflow:hidden;}
.news-lead img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1);}
.news-lead:hover img{transform:scale(1.03);}
.news-lead .body{padding:28px 30px 30px;display:flex;flex-direction:column;flex:1;}
.news-meta{display:flex;align-items:center;gap:14px;margin-bottom:16px;flex-wrap:wrap;}
.news-meta .time{font-family:var(--mono);font-size:13px;color:var(--ink-2);}
.news-lead h3{font-size:22px;font-weight:700;line-height:1.45;margin-bottom:14px;}
.news-lead h3 a:hover{color:var(--orange);}
.news-lead .excerpt{font-size:15px;color:var(--ink-2);line-height:1.85;margin-bottom:24px;}
.news-lead .link-line{margin-top:auto;}
.news-list{border-top:1px solid var(--line);height:100%;display:flex;flex-direction:column;}
.news-item{
  padding:22px 0;border-bottom:1px solid var(--line);
  display:flex;flex-direction:column;gap:10px;flex:1;
  transition:padding-left .3s cubic-bezier(.2,.7,.2,1);
}
.news-item:hover{padding-left:8px;}
.news-item h3{font-size:18px;font-weight:600;line-height:1.5;}
.news-item h3 a:hover{color:var(--orange);}
.news-item .excerpt{
  font-size:14px;color:var(--ink-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item .news-meta{margin-bottom:0;}
.news-empty{
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:56px 32px;text-align:center;color:var(--ink-2);
  display:flex;flex-direction:column;align-items:center;gap:18px;
}
.news-empty strong{font-size:17px;color:var(--ink);font-weight:600;}

/* ===================== FAQ ===================== */
.faq-wrap{max-width:920px;}
.faq-acc .accordion-item{background:transparent;border:0;border-top:1px solid var(--line);}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq-acc .accordion-button{
  position:relative;background:transparent;box-shadow:none;
  color:var(--ink);font-size:17px;font-weight:600;line-height:1.6;
  padding:24px 56px 24px 0;border-radius:0;
  display:block;width:100%;text-align:left;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--ink);}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:auto;height:auto;margin:0;
  font-family:var(--mono);font-size:24px;line-height:1;color:var(--ink-2);
  transition:transform .3s cubic-bezier(.2,.7,.2,1),color .3s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);color:var(--ink);}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--lime);outline-offset:2px;}
.faq-acc .accordion-body{
  padding:0 60px 26px 0;font-size:15.5px;color:var(--ink-2);line-height:1.9;
}

/* ===================== CTA 与表单 ===================== */
.cta-band{
  background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-inner{padding:84px 0;}
.cta-title{font-size:clamp(26px,3.2vw,40px);font-weight:800;line-height:1.25;letter-spacing:-.01em;margin-bottom:18px;}
.cta-txt{font-size:16px;color:var(--ink-2);max-width:520px;margin-bottom:30px;}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;letter-spacing:.06em;color:var(--ink-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;background:#fff;color:var(--ink);
  border:1px solid var(--line);border-radius:var(--r-btn);
  padding:13px 14px;min-height:48px;line-height:1.6;
  outline:none;transition:border-color .25s ease,box-shadow .25s ease;
}
.field textarea{min-height:112px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--ink);box-shadow:0 2px 0 var(--lime);
}
.field input.err,.field textarea.err,.field select.err{border-color:var(--orange);}
.field .tip{font-size:12px;color:var(--orange);margin-top:6px;display:none;}
.field .tip.show{display:block;}
.checkbox-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-2);line-height:1.7;}
.checkbox-line input{width:16px;height:16px;margin-top:4px;accent-color:var(--ink);flex:0 0 auto;}
.checkbox-line a{text-decoration:underline;color:var(--ink-2);}
.checkbox-line a:hover{color:var(--orange);}
.form-submit{width:100%;margin-top:22px;}
.form-ok{
  display:none;margin-top:16px;padding:14px 16px;
  border:1px solid var(--lime);background:rgba(198,242,78,.18);
  border-radius:var(--r-btn);font-size:14px;color:var(--ink);
}
.form-ok.show{display:block;}
.privacy-note{
  font-size:13px;color:var(--ink-2);line-height:1.9;padding:22px 0 0;
  border-top:1px solid var(--line);margin-top:36px;
}
.privacy-note a{text-decoration:underline;}
.inline-form-wrap{display:none;margin-top:34px;}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--dark);color:var(--bg);padding:76px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--bg);}
.footer-brand:hover{color:var(--lime);}
.footer-brand .brand-dot{background:var(--lime);}
.footer-desc{margin-top:18px;font-size:14px;color:var(--dark-2);line-height:1.9;max-width:320px;}
.footer-col h4{font-size:12px;letter-spacing:.08em;color:var(--dark-2);font-weight:500;margin-bottom:20px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14px;color:var(--bg);}
.footer-col a:hover{color:var(--lime);}
.footer-col li span{font-size:14px;color:var(--dark-2);}
.footer-bottom{
  margin-top:60px;border-top:1px solid var(--dark-line);
  padding:24px 0 28px;display:flex;flex-wrap:wrap;gap:12px 28px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:var(--dark-2);
}
.footer-bottom a{color:var(--dark-2);}
.footer-bottom a:hover{color:var(--lime);}

/* ===================== 动效 ===================== */
.reveal{opacity:0;transform:translateY(12px);}
.reveal.in{opacity:1;transform:none;transition:opacity .45s cubic-bezier(.2,.7,.2,1),transform .45s cubic-bezier(.2,.7,.2,1);}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ===================== 响应式 ===================== */
@media (max-width:1199.98px){
  :root{--sec:96px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
  .footer-grid .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  :root{--sec:80px;}
  .nav-menu,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding-top:48px;}
  .hero-media{margin-top:12px;}
  .pain-side{position:static;margin-bottom:28px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:40px 0;}
  .stat{padding:0 24px;}
  .stat:nth-child(odd){border-left:0;padding-left:0;}
  .inline-form-wrap{display:block;}
  .cta-modal-trigger{display:none;}
  .faq-acc .accordion-body{padding-right:24px;}
}
@media (max-width:767.98px){
  :root{--sec:64px;}
  .container-x{padding:0 20px;}
  .nav-inner{height:60px;}
  .site-header{height:60px;}
  .hero-title{letter-spacing:-.01em;}
  .hero-sub{font-size:16px;}
  .trust-inner{gap:12px 24px;font-size:13px;padding:16px 0;}
  .form-row{grid-template-columns:1fr;}
  .plan-card{padding:24px;}
  .plan-wide-body{padding:28px 24px;}
  .news-lead .body{padding:24px;}
  .stats{padding:64px 0;}
  .stats-head{margin-bottom:36px;}
  .footer-grid{grid-template-columns:1fr;gap:34px;}
  .site-footer{padding-top:56px;}
  .footer-bottom{margin-top:40px;}
  .drawer-nav a{font-size:22px;}
}
@media (max-width:575.98px){
  .stats-grid{grid-template-columns:1fr;}
  .stat{border-left:0;padding:0 0 26px;border-bottom:1px solid var(--dark-line);}
  .stat:last-child{border-bottom:0;padding-bottom:0;}
  .btn-ink,.btn-ghost{width:100%;}
  .hero-actions{gap:14px;}
}

/* roulang page: article */
:root{
  --paper:#F6F4EF;
  --paper-2:#EDEAE3;
  --ink:#12110F;
  --muted:#6E6B63;
  --line:#DEDAD1;
  --lime:#C6F24E;
  --orange:#E4572E;
  --orange-hover:#C9441F;
  --dark-muted:#A8A49A;
  --r-card:4px;
  --r-btn:3px;
  --r-img:4px;
  --r-modal:8px;
  --c-max:1240px;
  --c-read:760px;
  --gap-y:96px;
  --bs-primary:#E4572E;
  --bs-primary-rgb:228,87,46;
  --bs-body-bg:#F6F4EF;
  --bs-body-color:#12110F;
  --bs-border-color:#DEDAD1;
  --bs-border-radius:4px;
  --bs-link-color:#12110F;
  --bs-link-hover-color:#E4572E;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .25s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.container-x{width:100%;max-width:var(--c-max);margin:0 auto;padding:0 32px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,244,239,.94);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{background:rgba(246,244,239,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--ink);}
.brand-dot{width:8px;height:8px;background:var(--lime);display:inline-block;flex:0 0 auto;}
.nav-menu{display:flex;align-items:center;gap:30px;}
.nav-menu a{
  position:relative;display:inline-block;padding:8px 0;
  font-size:15px;letter-spacing:.02em;color:var(--ink);
}
.nav-menu a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--ink);transition:width .3s cubic-bezier(.2,.7,.2,1);
}
.nav-menu a:hover::after{width:100%;}
.nav-menu a.active{font-weight:700;}
.nav-menu a.active::after{width:100%;}
.nav-right{display:flex;align-items:center;gap:16px;}
.nav-divider{width:1px;height:20px;background:var(--line);display:inline-block;}
.nav-cta{display:inline-flex;align-items:center;gap:6px;font-size:15px;padding:10px 0;color:var(--ink);}
.nav-cta span{transition:transform .25s ease;}
.nav-cta:hover{color:var(--orange);}
.nav-cta:hover span{transform:translateX(3px);}
.nav-toggle{
  display:none;width:44px;height:44px;background:none;border:1px solid var(--line);
  border-radius:var(--r-btn);position:relative;cursor:pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:1.5px;background:var(--ink);
  transform:translateX(-50%);content:"";
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-drawer{
  position:fixed;inset:0;z-index:1200;background:var(--paper);
  padding:84px 24px 40px;display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:none;}
.nav-drawer a{font-size:24px;font-weight:700;padding:20px 0;border-bottom:1px solid var(--line);}
.drawer-close{
  position:absolute;top:18px;right:20px;width:44px;height:44px;
  border:1px solid var(--line);background:none;border-radius:var(--r-btn);
  font-size:20px;line-height:1;cursor:pointer;color:var(--ink);
}

/* ---------- 面包屑 ---------- */
.crumb-wrap{padding-top:26px;}
.breadcrumb{
  --bs-breadcrumb-divider:"/";
  --bs-breadcrumb-item-padding-x:.5rem;
  margin:0;font-size:13px;color:var(--muted);
  display:flex;flex-wrap:wrap;align-items:center;
}
.breadcrumb-item+.breadcrumb-item::before{color:var(--line);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb-item.active{color:var(--ink);}

/* ---------- 文章头 ---------- */
.article-hero{padding:36px 0 44px;border-bottom:1px solid var(--line);}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;
  background:var(--lime);color:var(--ink);
  padding:6px 14px;border-radius:999px;font-weight:500;
}
.article-title{
  font-size:clamp(30px,4.4vw,48px);line-height:1.14;letter-spacing:-.02em;
  margin:22px 0 22px;max-width:920px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:14px;color:var(--muted);}
.meta-row .num{font-family:var(--mono);letter-spacing:.02em;color:var(--ink);}

/* ---------- 正文 ---------- */
.article-shell{padding:var(--gap-y) 0 0;}
.article-panel{max-width:var(--c-read);margin:0 auto;}
.article-cover{margin:0 0 44px;border-radius:var(--r-img);overflow:hidden;background:var(--paper-2);}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.2,1);}
.article-cover:hover img{transform:scale(1.03);}
.article-body{font-size:17px;line-height:1.9;color:#1b1a17;}
.article-body p{margin:0 0 22px;}
.article-body h2{
  position:relative;font-size:clamp(24px,2.6vw,30px);font-weight:800;
  line-height:1.3;margin:48px 0 18px;padding-left:26px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.62em;width:16px;height:3px;background:var(--lime);
}
.article-body h3{font-size:21px;font-weight:700;line-height:1.35;margin:34px 0 14px;}
.article-body h4{font-size:18px;font-weight:700;margin:26px 0 12px;}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:24px;}
.article-body ul li{position:relative;margin-bottom:10px;padding-left:6px;}
.article-body ul li::before{
  content:"";position:absolute;left:-16px;top:.72em;width:6px;height:6px;background:var(--lime);
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin-bottom:10px;padding-left:4px;}
.article-body blockquote{
  margin:30px 0;padding:18px 24px;border-left:3px solid var(--lime);
  background:var(--paper-2);color:#33312c;font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:26px 0;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body a{text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--line);}
.article-body a:hover{color:var(--orange);text-decoration-color:var(--orange);}
.article-body table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;line-height:1.7;}
.article-body th{background:var(--paper-2);font-weight:700;}
.article-body pre{
  background:#EAE7E0;border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px 18px;overflow-x:auto;font-family:var(--mono);
  font-size:14px;line-height:1.7;margin:0 0 24px;
}
.article-body code{
  font-family:var(--mono);font-size:.9em;background:#EAE7E0;
  padding:2px 6px;border-radius:3px;
}
.article-body pre code{background:none;padding:0;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0;}

/* ---------- 空状态 ---------- */
.empty-state{
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:56px 32px;text-align:left;
}
.empty-title{font-size:22px;font-weight:800;margin-bottom:12px;}
.empty-desc{color:var(--muted);font-size:16px;margin-bottom:24px;max-width:520px;}

/* ---------- 文章底部操作 ---------- */
.article-actions{
  max-width:var(--c-read);margin:52px auto 0;padding-top:26px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.link-underline{
  position:relative;display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;
  padding:8px 0;color:var(--ink);
}
.link-underline::after{
  content:"";position:absolute;left:0;bottom:4px;height:1px;width:100%;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.link-underline:hover::after{transform:scaleX(1);}
.action-icons{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:44px;height:44px;border:1px solid var(--line);background:none;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  color:var(--ink);transition:border-color .25s ease,background .25s ease,color .25s ease;
}
.icon-btn:hover{border-color:var(--ink);background:var(--ink);color:var(--paper);}
.icon-btn svg{width:17px;height:17px;}

/* ---------- 相关推荐 ---------- */
.related-section{margin-top:var(--gap-y);padding-top:56px;border-top:1px solid var(--line);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);}
.sec-head p{color:var(--muted);font-size:15px;margin-top:8px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.related-card{
  display:block;border-top:1px solid var(--line);padding-top:20px;
  transition:transform .25s cubic-bezier(.2,.7,.2,1),border-color .25s ease;
}
.related-card:hover{transform:translateY(-2px);border-color:var(--ink);}
.related-cat{
  display:inline-block;font-size:12px;letter-spacing:.08em;
  background:var(--lime);color:var(--ink);padding:4px 10px;border-radius:999px;margin-bottom:14px;
}
.related-card h3{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:10px;}
.related-date{font-family:var(--mono);font-size:13px;color:var(--muted);letter-spacing:.02em;}

/* ---------- CTA / 表单 ---------- */
.cta-section{position:relative;margin-top:var(--gap-y);background:#12110F;color:#F6F4EF;overflow:hidden;}
.cta-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.2;
}
.cta-inner{position:relative;z-index:1;padding:88px 0;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.cta-copy .cta-kicker{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);
  font-size:12px;letter-spacing:.08em;color:var(--lime);margin-bottom:20px;
}
.cta-copy h2{font-size:clamp(26px,3vw,38px);line-height:1.22;margin-bottom:18px;color:#F6F4EF;}
.cta-copy p{color:var(--dark-muted);font-size:16px;line-height:1.85;max-width:460px;}
.cta-points{margin-top:28px;display:flex;flex-direction:column;gap:0;}
.cta-points li{
  display:flex;align-items:flex-start;gap:12px;padding:14px 0;
  border-top:1px solid rgba(246,244,239,.18);font-size:15px;color:#F6F4EF;
}
.cta-points li span{color:var(--lime);font-family:var(--mono);font-size:13px;line-height:1.9;}
.lead-form{
  background:rgba(246,244,239,.04);border:1px solid rgba(246,244,239,.18);
  border-radius:var(--r-modal);padding:32px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;letter-spacing:.06em;color:var(--dark-muted);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--r-btn);padding:13px 14px;font-size:15px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:104px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#9a968d;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);box-shadow:inset 0 -2px 0 var(--lime);
}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px;}
.check-row input{width:16px;height:16px;margin-top:3px;flex:0 0 auto;accent-color:var(--orange);}
.check-row label{font-size:13px;color:var(--dark-muted);line-height:1.7;margin:0;}
.check-row a{color:#F6F4EF;text-decoration:underline;text-underline-offset:3px;}
.btn-primary-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  width:100%;background:var(--orange);color:#12110F;border:none;
  border-radius:var(--r-btn);padding:15px 26px;font-size:16px;font-weight:700;
  cursor:pointer;transition:background .25s ease,transform .25s ease;
}
.btn-primary-x:hover{background:var(--orange-hover);transform:translateY(-2px);}
.btn-primary-x:active{transform:translateY(0);}
.form-tip{
  font-size:13px;color:var(--lime);margin-top:12px;min-height:18px;
  opacity:0;transition:opacity .25s ease;
}
.form-tip.is-on{opacity:1;}
.privacy-note{font-size:13px;color:var(--dark-muted);line-height:1.8;margin-top:14px;}
.privacy-note a{color:#F6F4EF;text-decoration:underline;text-underline-offset:3px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#12110F;color:#F6F4EF;padding:76px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:#F6F4EF;}
.footer-desc{color:var(--dark-muted);font-size:14px;line-height:1.85;margin-top:16px;max-width:330px;}
.footer-col h4{
  font-size:12px;letter-spacing:.08em;color:var(--dark-muted);
  font-weight:500;margin-bottom:18px;
}
.footer-col li{margin-bottom:11px;font-size:14px;line-height:1.7;}
.footer-col a{color:#F6F4EF;}
.footer-col a:hover{color:var(--lime);}
.footer-col span{color:var(--dark-muted);}
.footer-bottom{
  margin-top:52px;padding-top:20px;border-top:1px solid rgba(246,244,239,.18);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--dark-muted);
}

/* ---------- 动效 ---------- */
.reveal{
  opacity:0;transform:translateY(12px);
  transition:opacity .4s cubic-bezier(.2,.7,.2,1),transform .4s cubic-bezier(.2,.7,.2,1);
}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container-x{padding:0 28px;}
}
@media (max-width:991px){
  :root{--gap-y:72px;}
  .nav-menu,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .cta-inner{grid-template-columns:1fr;gap:40px;padding:72px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .related-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .article-title{max-width:100%;}
}
@media (max-width:767px){
  :root{--gap-y:56px;}
  .container-x{padding:0 20px;}
  body{font-size:16px;}
  .nav-inner{height:60px;}
  .crumb-wrap{padding-top:18px;}
  .article-hero{padding:26px 0 32px;}
  .article-body{font-size:16px;}
  .article-body h2{margin-top:38px;padding-left:22px;}
  .article-body h2::before{width:12px;}
  .related-grid{grid-template-columns:1fr;}
  .lead-form{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;}
  .cta-inner{padding:60px 0;}
}
@media (max-width:575px){
  .article-title{font-size:26px;line-height:1.25;}
  .sec-head{align-items:flex-start;}
  .btn-primary-x{padding:14px 20px;}
}

/* roulang page: category1 */
:root{
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-color:#12110F;
  --bs-body-bg:#F6F4EF;
  --bs-border-color:#DEDAD1;
  --bs-border-radius:4px;
  --bs-link-color:#12110F;
  --bs-link-hover-color:#E4572E;
  --bs-primary:#E4572E;
  --bs-primary-rgb:228,87,46;
  --bs-focus-ring-color:rgba(198,242,78,.85);

  --bg:#F6F4EF;
  --bg-2:#EDEAE3;
  --dark:#12110F;
  --ink:#12110F;
  --ink-2:#6E6B63;
  --line:#DEDAD1;
  --lime:#C6F24E;
  --orange:#E4572E;
  --orange-deep:#C9441F;
  --paper:#FFFFFF;
  --r-card:4px;
  --r-btn:3px;
  --r-img:4px;
  --r-modal:8px;
  --r-pill:999px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
  --ctn:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-sans);font-size:16.5px;line-height:1.9;font-weight:400;
  -webkit-font-smoothing:antialiased;text-align:left;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.2;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--lime);color:var(--dark);}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}

.container-x{width:100%;max-width:var(--ctn);margin:0 auto;padding:0 32px;}

/* ---------- 通用板块 ---------- */
.section{padding:110px 0;position:relative;}
.section-alt{background:var(--bg-2);}
.section-dark{background:var(--dark);color:#F6F4EF;}
.section-head{margin-bottom:56px;max-width:760px;}
.sec-num{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;color:var(--ink-2);
  display:block;margin-bottom:14px;
}
.section-dark .sec-num{color:#A8A49A;}
.sec-num .dot{display:inline-block;width:7px;height:7px;background:var(--lime);margin-right:8px;vertical-align:1px;}
.section h2{font-size:clamp(27px,3.2vw,36px);font-weight:800;letter-spacing:-.015em;}
.section-lead{margin-top:18px;font-size:16px;color:var(--ink-2);line-height:1.9;max-width:640px;}
.section-dark .section-lead{color:#A8A49A;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(246,244,239,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{background:rgba(246,244,239,.95);box-shadow:0 1px 0 rgba(18,17,15,.04);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:28px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;letter-spacing:.01em;color:var(--ink);
  white-space:nowrap;
}
.brand-dot{width:8px;height:8px;background:var(--lime);display:inline-block;flex:0 0 auto;}
.nav-menu{display:flex;align-items:center;gap:34px;}
.nav-menu a{
  position:relative;font-size:15px;letter-spacing:.02em;color:var(--ink);
  padding:8px 0;transition:color .25s ease;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;bottom:2px;height:1px;width:0;
  background:var(--ink);transition:width .3s cubic-bezier(.2,.7,.2,1);
}
.nav-menu a:hover::after{width:100%;}
.nav-menu a.active{font-weight:700;}
.nav-menu a.active::after{width:100%;background:var(--ink);}
.nav-menu a.active::before{
  content:"";position:absolute;left:-13px;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--lime);
}
.nav-right{display:flex;align-items:center;gap:22px;}
.nav-divider{width:1px;height:22px;background:var(--line);display:inline-block;}
.nav-cta{
  font-size:15px;font-weight:500;color:var(--ink);display:inline-flex;align-items:center;gap:8px;
  padding:8px 0;transition:color .25s ease;
}
.nav-cta span{transition:transform .3s cubic-bezier(.2,.7,.2,1);display:inline-block;}
.nav-cta:hover{color:var(--orange);}
.nav-cta:hover span{transform:translateX(4px);}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;padding:0;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:22px;height:1.5px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:22px;height:1.5px;background:var(--ink);
}
.nav-toggle span::before{top:-7px;}
.nav-toggle span::after{top:7px;}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;background:var(--bg);z-index:1200;
  transform:translateX(100%);transition:transform .38s cubic-bezier(.2,.7,.2,1);
  display:flex;flex-direction:column;padding:24px 24px 40px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border:0;background:transparent;font-size:26px;line-height:1;
  cursor:pointer;color:var(--ink);
}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px;}
.drawer-nav a{
  font-size:24px;font-weight:700;padding:22px 0;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:12px;
}
.drawer-nav a.active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);}
.drawer-cta{
  margin-top:36px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--orange);color:var(--dark);font-weight:700;font-size:16px;
  padding:16px 24px;border-radius:var(--r-btn);min-height:52px;
}

/* ---------- 按钮 / 链接 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:var(--orange);color:var(--dark);font-weight:700;font-size:16px;
  padding:15px 30px;border-radius:var(--r-btn);border:1px solid var(--orange);
  min-height:48px;cursor:pointer;transition:background .25s ease,transform .25s ease,color .25s ease;
}
.btn-main:hover{background:var(--orange-deep);border-color:var(--orange-deep);color:#fff;transform:translateY(-2px);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:transparent;color:var(--ink);font-weight:600;font-size:16px;
  padding:15px 30px;border:1px solid var(--ink);border-radius:var(--r-btn);
  min-height:48px;cursor:pointer;transition:background .25s ease,color .25s ease,transform .25s ease;
}
.btn-ghost:hover{background:var(--ink);color:var(--bg);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.section-dark .btn-ghost{color:#F6F4EF;border-color:rgba(246,244,239,.5);}
.section-dark .btn-ghost:hover{background:#F6F4EF;color:var(--dark);border-color:#F6F4EF;}
.link-underline{
  display:inline-block;position:relative;font-size:15px;font-weight:600;color:var(--ink);
  padding-bottom:2px;
}
.link-underline::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--ink);
  transform:scaleX(0);transform-origin:left;transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.link-underline:hover::after{transform:scaleX(1);}
.link-underline:hover{color:var(--orange);}

/* ---------- 页面头 Hero ---------- */
.page-hero{
  padding:88px 0 96px;border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(237,234,227,.9),rgba(246,244,239,.95));
}
.hero-row{--bs-gutter-x:0;}
.hero-copy{padding-right:56px;}
.crumb-mini{
  font-size:13px;color:var(--ink-2);margin-bottom:26px;letter-spacing:.02em;
}
.crumb-mini a{color:var(--ink-2);}
.crumb-mini a:hover{color:var(--orange);}
.crumb-mini span{margin:0 8px;color:var(--line);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--ink-2);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px;
  background:rgba(255,255,255,.6);margin-bottom:26px;
}
.eyebrow::before{content:"";width:6px;height:6px;background:var(--lime);border-radius:50%;}
.page-hero h1{
  font-size:clamp(34px,4.6vw,56px);font-weight:800;line-height:1.14;letter-spacing:-.02em;
  max-width:14em;
}
.page-hero h1 em{font-style:normal;box-shadow:inset 0 -.28em 0 var(--lime);}
.hero-sub{margin-top:24px;font-size:17px;color:var(--ink-2);line-height:1.95;max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin-top:38px;}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:44px;padding-top:26px;
  border-top:1px solid var(--line);
}
.hero-trust li{
  font-size:14px;color:var(--ink-2);display:inline-flex;align-items:center;gap:9px;
}
.hero-trust li::before{content:"";width:6px;height:6px;background:var(--lime);flex:0 0 auto;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:4/3.4;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--line);
}
.hero-figure::after{
  content:"";position:absolute;left:-14px;bottom:-14px;width:88px;height:88px;
  border-left:1px solid var(--line);border-bottom:1px solid var(--line);
  pointer-events:none;
}

/* ---------- 卖点（不对称） ---------- */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.feature-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;display:flex;flex-direction:column;gap:14px;
  transition:border-color .28s ease,transform .28s ease,box-shadow .28s ease;
}
.feature-card:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:0 8px 24px rgba(18,17,15,.06);}
.feature-card .fnum{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.12em;color:var(--ink-2);
}
.feature-card:hover .fnum{color:var(--orange);}
.feature-card h3{font-size:21px;font-weight:700;line-height:1.4;}
.feature-card p{font-size:15px;color:var(--ink-2);line-height:1.9;}
.feature-card .link-underline{margin-top:auto;}
.feature-wide{
  grid-column:1 / -1;flex-direction:row;align-items:center;gap:40px;background:var(--bg-2);
}
.feature-wide .fw-text{flex:1 1 auto;display:flex;flex-direction:column;gap:14px;}
.feature-wide .fw-media{flex:0 0 280px;}
.feature-wide .fw-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);
  transition:transform .5s cubic-bezier(.2,.7,.2,1);
}
.feature-wide:hover .fw-media img{transform:scale(1.03);}
.feature-wide .fw-media{overflow:hidden;border-radius:var(--r-img);}

/* ---------- 左目录 + 右列表 ---------- */
.split-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.anchor-box{position:sticky;top:100px;}
.anchor-title{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--ink-2);
  padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:6px;
}
.anchor-box ul li{border-bottom:1px solid var(--line);}
.anchor-box ul a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:15px 0;font-size:15px;color:var(--ink-2);transition:color .25s ease,padding-left .25s ease;
}
.anchor-box ul a::after{
  content:"→";font-family:var(--font-mono);font-size:13px;opacity:0;
  transition:opacity .25s ease,transform .25s ease;
}
.anchor-box ul a:hover{color:var(--ink);padding-left:6px;}
.anchor-box ul a:hover::after{opacity:1;transform:translateX(2px);}
.anchor-note{
  margin-top:28px;padding:20px;background:var(--bg-2);border-radius:var(--r-card);
  font-size:14px;color:var(--ink-2);line-height:1.85;
}
.anchor-note a{color:var(--ink);border-bottom:1px solid var(--ink);}

.entry-list{display:flex;flex-direction:column;}
.entry{
  display:grid;grid-template-columns:auto 1fr;gap:26px;
  padding:30px 0;border-top:1px solid var(--line);
  transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.entry:last-child{border-bottom:1px solid var(--line);}
.entry:hover{transform:translateX(4px);}
.entry-num{
  font-family:var(--font-mono);font-size:14px;font-weight:600;color:var(--ink-2);
  padding-top:5px;min-width:34px;
}
.entry:hover .entry-num{color:var(--orange);}
.entry h3{font-size:21px;font-weight:700;line-height:1.45;}
.entry p{margin-top:12px;font-size:15px;color:var(--ink-2);line-height:1.9;}
.entry .entry-meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;margin-bottom:16px;
}
.tag{
  display:inline-flex;align-items:center;font-size:12px;letter-spacing:.06em;
  padding:4px 12px;border-radius:var(--r-pill);background:var(--lime);color:var(--dark);
  font-weight:600;
}
.tag-plain{
  display:inline-flex;align-items:center;font-size:12px;letter-spacing:.06em;
  padding:4px 12px;border-radius:var(--r-pill);border:1px solid var(--line);color:var(--ink-2);
}

/* ---------- 精选图文 ---------- */
.pick-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.pick-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:border-color .28s ease,transform .28s ease,box-shadow .28s ease;
}
.pick-card:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:0 8px 24px rgba(18,17,15,.06);}
.pick-media{overflow:hidden;}
.pick-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1);}
.pick-card:hover .pick-media img{transform:scale(1.03);}
.pick-body{padding:28px 30px 32px;display:flex;flex-direction:column;gap:14px;}
.pick-body h3{font-size:21px;line-height:1.45;}
.pick-body p{font-size:15px;color:var(--ink-2);line-height:1.9;}
.pick-side{display:flex;flex-direction:column;gap:24px;}
.pick-side .pick-card{flex:1 1 0;display:flex;flex-direction:column;}
.pick-side .pick-media img{aspect-ratio:16/6.5;}
.pick-side .pick-body{gap:10px;padding:22px 26px 26px;}
.pick-side h3{font-size:18px;}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(246,244,239,.16);border:1px solid rgba(246,244,239,.16);}
.flow-card{background:var(--dark);padding:34px 28px;display:flex;flex-direction:column;gap:14px;}
.flow-num{
  font-family:var(--font-mono);font-size:32px;font-weight:600;color:var(--lime);line-height:1;
}
.flow-card h3{font-size:18px;color:#F6F4EF;font-weight:700;line-height:1.45;}
.flow-card p{font-size:14.5px;color:#A8A49A;line-height:1.9;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.accordion-item{background:transparent;border:0;border-top:1px solid var(--line);}
.accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-button{
  background:transparent;border:0;box-shadow:none!important;
  padding:24px 44px 24px 0;font-size:17.5px;font-weight:700;color:var(--ink);
  line-height:1.6;border-radius:0!important;
}
.accordion-button:not(.collapsed){background:transparent;color:var(--ink);}
.accordion-button::after{
  content:"";background-image:none!important;width:13px;height:13px;
  background:
    linear-gradient(var(--ink),var(--ink)) center/13px 1.5px no-repeat,
    linear-gradient(var(--ink),var(--ink)) center/1.5px 13px no-repeat;
  transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{
  padding:0 0 26px;font-size:15.5px;color:var(--ink-2);line-height:1.95;max-width:44em;
}

/* ---------- CTA / 表单 ---------- */
.cta-panel{
  display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  padding:56px;
}
.cta-copy h2{font-size:clamp(26px,3vw,34px);line-height:1.25;}
.cta-copy p{margin-top:20px;font-size:16px;color:var(--ink-2);line-height:1.95;}
.cta-points{margin-top:30px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{
  font-size:14.5px;color:var(--ink-2);display:flex;align-items:flex-start;gap:10px;
}
.cta-points li::before{
  content:"";width:6px;height:6px;background:var(--lime);margin-top:11px;flex:0 0 auto;
}
.lead-form{display:flex;flex-direction:column;gap:20px;}
.field{display:flex;flex-direction:column;gap:9px;}
.field label{font-size:13.5px;font-weight:600;color:var(--ink);letter-spacing:.02em;}
.form-control,.form-select{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:13px 15px;font-size:15px;color:var(--ink);line-height:1.6;
  transition:border-color .25s ease,box-shadow .25s ease;
  appearance:none;-webkit-appearance:none;
}
.form-select{
  background-image:linear-gradient(45deg,transparent 50%,var(--ink-2) 50%),linear-gradient(135deg,var(--ink-2) 50%,transparent 50%);
  background-position:calc(100% - 20px) 50%,calc(100% - 15px) 50%;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;
}
.form-control::placeholder{color:#A8A49A;}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--ink);box-shadow:0 2px 0 0 var(--lime);
}
.form-control.is-error,.form-select.is-error{border-color:var(--orange);box-shadow:0 2px 0 0 var(--orange);}
.err-tip{font-size:13px;color:var(--orange);display:none;}
.err-tip.show{display:block;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--ink-2);line-height:1.8;}
.check-row input{margin-top:6px;width:16px;height:16px;accent-color:var(--orange);flex:0 0 auto;}
.check-row a{color:var(--ink);border-bottom:1px solid var(--ink);}
.form-submit{width:100%;}
.privacy-note{
  font-size:13px;color:var(--ink-2);line-height:1.85;margin-top:2px;
}
.privacy-note a{color:var(--ink);border-bottom:1px solid var(--ink);}
.form-done{
  display:none;margin-top:4px;padding:14px 16px;border:1px solid var(--lime);
  background:rgba(198,242,78,.22);border-radius:var(--r-btn);font-size:14.5px;color:var(--ink);
}
.form-done.show{display:block;}

/* ---------- 相关条目 ---------- */
.rel-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;
}
.rel-card{
  background:var(--bg);padding:34px 30px;display:flex;flex-direction:column;gap:14px;
  transition:background .28s ease;
}
.rel-card:hover{background:var(--bg-2);}
.rel-card .rnum{font-family:var(--font-mono);font-size:13px;color:var(--ink-2);letter-spacing:.1em;}
.rel-card h3{font-size:19px;line-height:1.5;}
.rel-card p{font-size:14.5px;color:var(--ink-2);line-height:1.9;}
.rel-card .link-underline{margin-top:auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#F6F4EF;padding:80px 0 34px;}
.footer-grid{
  display:grid;grid-template-columns:2.2fr 1fr 1fr 1.3fr;gap:48px;
  padding-bottom:56px;border-bottom:1px solid rgba(246,244,239,.16);
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;color:#F6F4EF;
  font-size:19px;font-weight:800;letter-spacing:.01em;
}
.footer-desc{margin-top:20px;font-size:14.5px;color:#A8A49A;line-height:1.95;max-width:32em;}
.footer-col h4{
  font-size:12px;letter-spacing:.1em;color:#A8A49A;font-weight:600;margin-bottom:20px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a,.footer-col span{font-size:14.5px;color:#F6F4EF;transition:color .25s ease;}
.footer-col a:hover{color:var(--lime);}
.footer-col span{color:#A8A49A;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between;
  padding-top:26px;font-size:13px;color:#A8A49A;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s cubic-bezier(.2,.7,.2,1),transform .4s cubic-bezier(.2,.7,.2,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container-x{padding:0 28px;}
  .hero-copy{padding-right:36px;}
  .cta-panel{padding:44px;gap:40px;}
}
@media (max-width:991.98px){
  .nav-menu,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:80px 0;}
  .page-hero{padding:64px 0 72px;}
  .hero-copy{padding-right:0;margin-bottom:44px;}
  .hero-figure img{aspect-ratio:16/9;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-wide{flex-direction:column;align-items:flex-start;gap:24px;}
  .feature-wide .fw-media{flex:1 1 auto;width:100%;}
  .split-wrap{grid-template-columns:1fr;gap:36px;}
  .anchor-box{position:static;}
  .pick-grid{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .cta-panel{grid-template-columns:1fr;padding:36px;}
  .rel-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .container-x{padding:0 20px;}
  .section{padding:64px 0;}
  .nav-inner{height:60px;}
  .page-hero{padding:48px 0 56px;}
  .page-hero h1{font-size:clamp(28px,7.6vw,36px);}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:16px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .hero-trust{gap:10px 18px;}
  .section-head{margin-bottom:36px;}
  .entry{grid-template-columns:1fr;gap:10px;padding:26px 0;}
  .entry-num{padding-top:0;}
  .field-row{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:34px;}
  .footer-bottom{flex-direction:column;gap:10px;}
  .cta-panel{padding:26px 20px;}
  .feature-card{padding:26px 22px;}
  .rel-card{padding:26px 22px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --bg:#F6F4EF;
  --bg-2:#EDEAE3;
  --dark:#12110F;
  --ink:#12110F;
  --ink-2:#6E6B63;
  --line:#DEDAD1;
  --lime:#C6F24E;
  --orange:#E4572E;
  --orange-d:#C9441F;
  --on-dark:#F6F4EF;
  --on-dark-2:#A8A49A;
  --r-card:4px;
  --r-btn:3px;
  --r-modal:8px;
  --r-pill:999px;
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:64px;
  --sec:100px;
  --max:1240px;

  --bs-primary:#E4572E;
  --bs-primary-rgb:228,87,46;
  --bs-body-bg:#F6F4EF;
  --bs-body-color:#12110F;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-font-size:16px;
  --bs-body-line-height:1.9;
  --bs-border-color:#DEDAD1;
  --bs-border-radius:4px;
  --bs-border-radius-sm:3px;
  --bs-border-radius-lg:8px;
  --bs-link-color:#12110F;
  --bs-link-hover-color:#C9441F;
  --bs-font-monospace:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
  --bs-emphasis-color:#12110F;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-align:left;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .25s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
::selection{background:var(--lime);color:var(--ink);}

.container-x{max-width:var(--max);margin:0 auto;padding:0 24px;width:100%;}
.mono{font-family:"IBM Plex Mono",Consolas,monospace;font-variant-numeric:tabular-nums;}
.eyebrow{
  font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-2);display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--lime);display:inline-block;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(246,244,239,.86);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{background:rgba(246,244,239,.92);backdrop-filter:blur(10px);}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--ink);
  white-space:nowrap;
}
.brand-dot{width:8px;height:8px;background:var(--lime);display:inline-block;flex:0 0 8px;}
.nav-menu{display:flex;align-items:center;gap:34px;}
.nav-menu a{
  position:relative;font-size:15px;letter-spacing:.02em;color:var(--ink-2);
  padding:6px 0;line-height:1.4;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.nav-menu a:hover{color:var(--ink);}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.active{color:var(--ink);font-weight:500;}
.nav-menu a.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:18px;}
.nav-divider{width:1px;height:18px;background:var(--line);display:inline-block;}
.nav-cta{
  font-size:15px;font-weight:500;display:inline-flex;align-items:center;gap:6px;
  padding:10px 0;color:var(--ink);
}
.nav-cta span{transition:transform .3s ease;display:inline-block;}
.nav-cta:hover{color:var(--orange-d);}
.nav-cta:hover span{transform:translateX(4px);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:transparent;
  border-radius:var(--r-btn);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1px;background:var(--ink);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* drawer */
.drawer{
  position:fixed;inset:0;z-index:1200;background:var(--bg);
  padding:20px 24px 40px;display:flex;flex-direction:column;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform .35s cubic-bezier(.2,.7,.2,1),opacity .25s ease,visibility .25s;
}
.drawer.open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:44px;margin-bottom:28px;}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);background:transparent;border-radius:var(--r-btn);
  font-size:22px;line-height:1;cursor:pointer;color:var(--ink);
}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.drawer-nav a{
  font-size:24px;font-weight:700;padding:22px 0;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav a.active{color:var(--orange-d);}
.drawer-note{margin-top:auto;font-size:13px;color:var(--ink-2);}

/* ---------- buttons ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--orange);color:var(--dark);border:1px solid var(--orange);
  border-radius:var(--r-btn);padding:14px 28px;font-size:16px;font-weight:700;
  min-height:48px;cursor:pointer;transition:background .25s ease,transform .25s ease,border-color .25s ease;
}
.btn-main:hover{background:var(--orange-d);border-color:var(--orange-d);transform:translateY(-2px);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--ink);border:1px solid var(--ink);
  border-radius:var(--r-btn);padding:14px 28px;font-size:16px;font-weight:500;
  min-height:48px;cursor:pointer;transition:background .25s ease,color .25s ease,transform .25s ease;
}
.btn-ghost:hover{background:var(--ink);color:var(--bg);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;
  position:relative;padding-bottom:2px;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;background:var(--ink);
  transform:scaleX(0);transform-origin:left;transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.link-arrow:hover::after{transform:scaleX(1);}
.link-arrow span{transition:transform .3s ease;}
.link-arrow:hover span{transform:translateX(4px);}

/* ---------- hero ---------- */
.page-hero{padding:calc(var(--sec) * .78) 0 72px;border-bottom:1px solid var(--line);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.page-hero h1{
  font-size:clamp(34px,4.2vw,56px);
  font-weight:800;line-height:1.14;letter-spacing:-.02em;margin:18px 0 20px;
}
.page-hero h1 .hl{
  position:relative;display:inline-block;
}
.page-hero h1 .hl::after{
  content:"";position:absolute;left:0;bottom:.08em;height:8px;width:100%;
  background:var(--lime);opacity:.75;z-index:-1;
}
.hero-sub{font-size:18px;color:var(--ink-2);max-width:560px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);}
.hero-tags span{font-size:13px;color:var(--ink-2);display:inline-flex;align-items:center;gap:8px;}
.hero-tags span::before{content:"";width:6px;height:6px;background:var(--lime);display:inline-block;}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;aspect-ratio:4/3;background:var(--bg-2);}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1);}
.hero-media:hover img{transform:scale(1.03);}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,17,15,0) 45%,rgba(18,17,15,.42) 100%);
}
.hero-media .media-cap{
  position:absolute;left:20px;bottom:16px;z-index:2;color:var(--on-dark);
  font-size:13px;letter-spacing:.08em;
}

/* ---------- section base ---------- */
.section{padding:var(--sec) 0;}
.section.tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:56px;}
.section-head h2{
  font-size:clamp(26px,3vw,36px);font-weight:800;line-height:1.25;letter-spacing:-.01em;
  display:flex;align-items:baseline;gap:16px;
}
.section-head h2 .num{
  font-family:"IBM Plex Mono",monospace;font-size:15px;font-weight:600;color:var(--ink-2);
  letter-spacing:.06em;
}
.section-head p{font-size:16px;color:var(--ink-2);max-width:520px;margin-top:12px;}

/* ---------- flow (alternating) ---------- */
.flow{border-top:1px solid var(--line);}
.flow-item{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
  padding:56px 0;border-bottom:1px solid var(--line);
}
.flow-item .flow-media{
  border-radius:var(--r-card);overflow:hidden;aspect-ratio:3/2;background:var(--bg-2);
}
.flow-item .flow-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1);}
.flow-item .flow-media:hover img{transform:scale(1.03);}
.flow-item.reverse .flow-text{order:2;}
.flow-item.reverse .flow-media{order:1;}
.flow-index{
  font-family:"IBM Plex Mono",monospace;font-size:14px;font-weight:600;
  color:var(--ink-2);letter-spacing:.08em;display:inline-block;margin-bottom:16px;
}
.flow-text h3{
  font-size:clamp(21px,2.2vw,25px);font-weight:700;line-height:1.4;margin-bottom:16px;
  letter-spacing:-.01em;
}
.flow-text p{font-size:16px;color:var(--ink-2);line-height:1.9;margin-bottom:12px;}
.flow-text .link-arrow{margin-top:12px;}

/* ---------- steps ---------- */
.steps{background:var(--bg-2);}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line);}
.step{
  padding:32px 28px 36px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--bg-2);transition:background .3s ease,transform .3s ease;
}
.step:hover{background:#fff;transform:translateY(-2px);}
.step .step-num{
  font-family:"IBM Plex Mono",monospace;font-size:14px;font-weight:600;color:var(--ink);
  background:var(--lime);display:inline-block;padding:2px 10px;border-radius:var(--r-pill);
  letter-spacing:.06em;margin-bottom:20px;
}
.step h3{font-size:19px;font-weight:700;margin-bottom:12px;line-height:1.45;}
.step p{font-size:15px;color:var(--ink-2);line-height:1.85;}

/* ---------- stats ---------- */
.stats{background:var(--dark);color:var(--on-dark);padding:88px 0;}
.stats-head{margin-bottom:52px;}
.stats-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;line-height:1.3;color:var(--on-dark);}
.stats-head p{color:var(--on-dark-2);font-size:15px;margin-top:12px;max-width:560px;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:0 32px;border-left:1px solid rgba(246,244,239,.18);}
.stat:first-child{border-left:0;padding-left:0;}
.stat .stat-value{
  font-family:"IBM Plex Mono",monospace;font-size:clamp(40px,5vw,62px);font-weight:600;
  color:var(--lime);line-height:1;letter-spacing:-.02em;display:flex;align-items:baseline;gap:6px;
}
.stat .stat-value em{font-style:normal;font-size:18px;font-weight:500;color:var(--on-dark-2);}
.stat .stat-label{font-size:13px;color:var(--on-dark-2);margin-top:16px;letter-spacing:.02em;}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:64px;align-items:start;}
.faq-side{position:sticky;top:104px;}
.faq-side h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;line-height:1.3;margin-bottom:14px;}
.faq-side p{font-size:15px;color:var(--ink-2);line-height:1.9;}
.faq-accordion .accordion-item{
  background:transparent;border:0;border-top:1px solid var(--line);
}
.faq-accordion .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq-accordion .accordion-header{margin:0;}
.faq-accordion .accordion-button{
  background:transparent;border:0;box-shadow:none;border-radius:0;
  padding:24px 44px 24px 0;font-size:17px;font-weight:500;color:var(--ink);
  line-height:1.6;position:relative;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--ink);background:transparent;}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--lime);outline-offset:-2px;}
.faq-accordion .accordion-button::after{
  background-image:none;content:"+";font-family:"IBM Plex Mono",monospace;
  font-size:22px;font-weight:400;color:var(--ink);width:auto;height:auto;
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  transition:transform .3s cubic-bezier(.2,.7,.2,1);line-height:1;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);}
.faq-accordion .accordion-body{
  padding:0 60px 26px 0;font-size:15.5px;color:var(--ink-2);line-height:1.9;
  margin-top:12px;
}

/* ---------- cta / form ---------- */
.cta-band{background:var(--bg-2);border-top:1px solid var(--line);}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start;}
.cta-copy h2{font-size:clamp(26px,3vw,36px);font-weight:800;line-height:1.3;margin-bottom:18px;letter-spacing:-.01em;}
.cta-copy p{font-size:16px;color:var(--ink-2);line-height:1.9;margin-bottom:24px;}
.cta-list{border-top:1px solid var(--line);}
.cta-list li{
  padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2);
  display:flex;gap:12px;align-items:flex-start;
}
.cta-list li::before{content:"";width:6px;height:6px;background:var(--lime);flex:0 0 6px;margin-top:11px;}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:36px;
}
.form-card h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.form-card .form-lead{font-size:14px;color:var(--ink-2);margin-bottom:26px;}
.field{margin-bottom:20px;}
.field label{display:block;font-size:14px;font-weight:500;margin-bottom:8px;letter-spacing:.01em;}
.field input,.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:13px 14px;font-size:15px;line-height:1.6;color:var(--ink);
  transition:border-color .25s ease,box-shadow .25s ease;
  appearance:none;-webkit-appearance:none;
}
.field textarea{min-height:110px;resize:vertical;}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--ink) 50%),linear-gradient(135deg,var(--ink) 50%,transparent 50%);
  background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;
  background-size:6px 6px,6px 6px;background-repeat:no-repeat;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);box-shadow:0 2px 0 0 var(--lime);
}
.field input::placeholder,.field textarea::placeholder{color:#A8A49A;}
.check-row{display:flex;gap:12px;align-items:flex-start;margin:24px 0 20px;}
.check-row input[type="checkbox"]{
  width:18px;height:18px;flex:0 0 18px;margin-top:5px;accent-color:var(--orange);
  border:1px solid var(--line);border-radius:2px;
}
.check-row label{font-size:13.5px;color:var(--ink-2);line-height:1.75;}
.check-row a{text-decoration:underline;text-underline-offset:3px;color:var(--ink);}
.form-submit{width:100%;}
.form-note{font-size:13px;color:var(--ink-2);margin-top:14px;line-height:1.75;}
.form-note a{text-decoration:underline;text-underline-offset:3px;}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);}
.related-card{
  padding:36px 32px 40px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  display:flex;flex-direction:column;gap:14px;transition:background .3s ease;
}
.related-card:last-child{border-right:0;}
.related-card:hover{background:#fff;}
.related-card .rc-num{
  font-family:"IBM Plex Mono",monospace;font-size:13px;font-weight:600;color:var(--ink-2);letter-spacing:.08em;
}
.related-card h3{font-size:20px;font-weight:700;line-height:1.45;}
.related-card p{font-size:15px;color:var(--ink-2);line-height:1.85;}
.related-card .link-arrow{margin-top:auto;}

/* ---------- privacy note ---------- */
.privacy-note{
  padding:28px 0 40px;border-top:1px solid var(--line);margin-top:0;
}
.privacy-note p{font-size:13px;color:var(--ink-2);line-height:1.85;}
.privacy-note a{text-decoration:underline;text-underline-offset:3px;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:var(--on-dark);padding:76px 0 32px;}
.footer-grid{display:grid;grid-template-columns:5fr 3fr 3fr 3fr;gap:48px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--on-dark);}
.footer-desc{font-size:14px;color:var(--on-dark-2);line-height:1.9;margin-top:18px;max-width:340px;}
.footer-col h4{
  font-size:12px;letter-spacing:.08em;color:var(--on-dark-2);font-weight:500;
  text-transform:uppercase;margin-bottom:20px;
}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a,.footer-col ul li span{font-size:14.5px;color:var(--on-dark);line-height:1.7;}
.footer-col ul li a:hover{color:var(--lime);}
.footer-col ul li span{color:var(--on-dark-2);}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid rgba(246,244,239,.18);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--on-dark-2);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s cubic-bezier(.2,.7,.2,1),transform .4s cubic-bezier(.2,.7,.2,1);}
.reveal.in{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  :root{--sec:84px;}
  .hero-grid{gap:40px;}
  .flow-item{gap:44px;}
  .faq-wrap{gap:44px;}
  .cta-grid{gap:44px;}
  .footer-grid{grid-template-columns:4fr 3fr 3fr 2fr;gap:36px;}
}
@media (max-width:991.98px){
  :root{--sec:72px;}
  .nav-menu,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .page-hero{padding:64px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:-1;}
  .flow-item{grid-template-columns:1fr;gap:26px;padding:44px 0;}
  .flow-item.reverse .flow-text{order:1;}
  .flow-item.reverse .flow-media{order:2;}
  .steps-grid{grid-template-columns:repeat(2,1fr);}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:40px 0;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .faq-side{position:static;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .related-grid{grid-template-columns:1fr;}
  .related-card{border-right:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:575.98px){
  :root{--sec:56px;}
  body{font-size:16px;}
  .container-x{padding:0 20px;}
  .nav-inner{height:60px;}
  .brand{font-size:17px;}
  .page-hero h1{font-size:clamp(28px,8vw,36px);}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:36px;gap:12px;}
  .steps-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:1fr;gap:32px;}
  .stat{border-left:0;padding:0;border-top:1px solid rgba(246,244,239,.18);padding-top:24px;}
  .stat:first-child{border-top:0;padding-top:0;}
  .faq-accordion .accordion-button{font-size:16px;padding-right:36px;}
  .faq-accordion .accordion-body{padding-right:0;}
  .form-card{padding:24px 20px;}
  .related-card{padding:28px 20px 32px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}