/* roulang page: index */
:root{
  --ink-900:#0E0F12;
  --ink-700:#23252B;
  --ink-500:#4A4F57;
  --ink-300:#8A9099;
  --paper:#F7F6F3;
  --paper-2:#FFFFFF;
  --line:#E3E1DC;
  --accent:#FF5A1F;
  --accent-ink:#C93F0C;
  --ok:#12B886;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:999px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(14,15,18,.04),0 8px 24px -12px rgba(14,15,18,.12);
  --shadow-2:0 2px 6px rgba(14,15,18,.06),0 20px 44px -20px rgba(14,15,18,.20);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Space Grotesk","Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
  --gut:32px;
  --sec-y:120px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font-family:inherit;font-size:16px;color:var(--ink-900);}
h1,h2,h3,h4,p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--accent);color:#fff;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

/* ============ 容器与栅格 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 var(--gut);
}
.grid{display:grid;gap:var(--gut);}
.col-5{grid-column:span 5;}
.col-6{grid-column:span 6;}
.col-7{grid-column:span 7;}
.col-4{grid-column:span 4;}
.col-8{grid-column:span 8;}
.col-12{grid-column:span 12;}

/* ============ 通用文字 ============ */
.eyebrow{
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  font-weight:600;
  color:var(--accent);
  margin-bottom:14px;
}
.h1{font-size:clamp(36px,6vw,76px);line-height:1.12;letter-spacing:-.02em;font-weight:900;color:var(--ink-900);}
.h2{font-size:clamp(24px,2.6vw,36px);line-height:1.2;letter-spacing:-.02em;font-weight:800;color:var(--ink-900);}
.h3{font-size:21px;line-height:1.35;letter-spacing:-.01em;font-weight:700;color:var(--ink-900);}
.lead{font-size:17px;line-height:1.9;color:var(--ink-500);}
.muted{color:var(--ink-300);font-size:13.5px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:50px;
  padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:15.5px;
  font-weight:600;
  letter-spacing:.01em;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary{background:var(--ink-900);color:#fff;}
.btn-primary:hover{background:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-ghost{background:transparent;color:var(--ink-900);border:1px solid var(--ink-900);}
.btn-ghost:hover{background:var(--ink-900);color:#fff;transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--ink-900);}
.btn-light:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}
.btn-sm{min-height:42px;padding:0 20px;font-size:14.5px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid var(--ink-900);
  padding-bottom:2px;
  transition:color .24s var(--ease),border-color .24s var(--ease),border-width .24s var(--ease);
}
.btn-text:hover{color:var(--accent);border-color:var(--accent);border-bottom-width:2px;}
.btn-text .arrow{transition:transform .24s var(--ease);}
.btn-text:hover .arrow{transform:translateX(4px);}
.btn-text.on-dark{color:#fff;border-color:rgba(255,255,255,.6);}
.btn-text.on-dark:hover{color:var(--accent);border-color:var(--accent);}

/* ============ 标签 ============ */
.pill{
  display:inline-block;
  font-size:12px;
  letter-spacing:.06em;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--ink-500);
  background:transparent;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.pill:hover{border-color:var(--accent);color:var(--accent);}
.pill-accent{border-color:rgba(255,90,31,.35);color:var(--accent);}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  transition:background .28s var(--ease),border-color .28s var(--ease),backdrop-filter .28s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(247,246,243,.95);
  backdrop-filter:saturate(1.4) blur(10px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:76px;
}
.brand{display:inline-flex;align-items:center;gap:11px;}
.brand-mark{
  width:30px;height:30px;flex:0 0 30px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--accent),#FF8A50);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:16px;height:16px;display:block;}
.brand-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:-.01em;
  color:#fff;
  transition:color .28s var(--ease);
  white-space:nowrap;
}
.site-header.is-scrolled .brand-text{color:var(--ink-900);}
.nav-desktop{display:flex;align-items:center;gap:30px;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:rgba(255,255,255,.85);
  padding:6px 0;
  transition:color .28s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;left:0;bottom:0;
  height:1px;width:0;
  background:var(--accent);
  transition:width .28s var(--ease);
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{width:100%;}
.site-header.is-scrolled .nav-link{color:var(--ink-500);}
.site-header.is-scrolled .nav-link:hover{color:var(--ink-900);}
.site-header.is-scrolled .nav-link.is-active{color:var(--ink-900);}
.header-actions{display:flex;align-items:center;gap:14px;}
.header-actions .btn-primary{background:#fff;color:var(--ink-900);}
.header-actions .btn-primary:hover{background:var(--accent);color:#fff;}
.site-header.is-scrolled .header-actions .btn-primary{background:var(--ink-900);color:#fff;}
.site-header.is-scrolled .header-actions .btn-primary:hover{background:var(--accent);}
.icon-btn{
  width:42px;height:42px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.28);
  color:#fff;
  transition:border-color .24s var(--ease),color .24s var(--ease),background .24s var(--ease);
}
.icon-btn:hover{border-color:var(--accent);color:var(--accent);}
.site-header.is-scrolled .icon-btn{border-color:var(--line);color:var(--ink-500);}
.site-header.is-scrolled .icon-btn:hover{border-color:var(--accent);color:var(--accent);}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  flex-direction:column;justify-content:center;align-items:flex-end;gap:6px;
}
.menu-toggle span{
  display:block;height:1.5px;width:26px;background:#fff;border-radius:2px;
  transition:transform .28s var(--ease),background .28s var(--ease),opacity .28s var(--ease);
}
.site-header.is-scrolled .menu-toggle span{background:var(--ink-900);}
.menu-toggle.is-open span:nth-child(1){transform:translateY(3.8px) rotate(45deg);}
.menu-toggle.is-open span:nth-child(2){transform:translateY(-3.8px) rotate(-45deg);}

/* 抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:55;
  background:var(--paper);
  padding:100px 24px 40px;
  display:flex;
  flex-direction:column;
  gap:6px;
  transform:translateY(-100%);
  transition:transform .38s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);}
.drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  font-size:22px;font-weight:700;letter-spacing:-.01em;
  color:var(--ink-900);
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.drawer a.drawer-link.is-active{color:var(--accent);}
.drawer .drawer-foot{margin-top:auto;padding-top:32px;display:flex;flex-direction:column;gap:14px;}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:80vh;
  display:flex;
  align-items:center;
  background:var(--ink-900);
  color:#fff;
  padding:140px 0 56px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(14,15,18,.94) 0%,rgba(14,15,18,.82) 42%,rgba(14,15,18,.52) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center right;
  transform:scale(1.02);
}
.hero .container{position:relative;z-index:2;}
.hero-grid{align-items:end;}
.hero .eyebrow{color:var(--accent);}
.hero h1{color:#fff;max-width:15em;}
.hero-sub{
  margin-top:22px;
  font-size:17.5px;
  line-height:1.85;
  color:rgba(255,255,255,.78);
  max-width:36em;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin-top:36px;}
.hero-actions .btn-primary{background:#fff;color:var(--ink-900);}
.hero-actions .btn-primary:hover{background:var(--accent);color:#fff;}
.hero-actions .btn-text{color:#fff;border-color:rgba(255,255,255,.55);}
.hero-actions .btn-text:hover{color:var(--accent);border-color:var(--accent);}
.hero-side{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  aspect-ratio:16/10;
  box-shadow:0 30px 70px -30px rgba(0,0,0,.7);
}
.hero-side img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.hero-side figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:18px 20px;
  font-size:13.5px;
  color:rgba(255,255,255,.82);
  background:linear-gradient(180deg,rgba(14,15,18,0),rgba(14,15,18,.88));
}
.hero-line{
  position:relative;z-index:2;
  margin-top:64px;
  border-top:1px solid rgba(255,255,255,.16);
  padding-top:26px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.hero-stat .v{
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  color:#fff;
  letter-spacing:-.01em;
}
.hero-stat .k{font-size:13px;color:rgba(255,255,255,.6);margin-top:4px;}

/* ============ 板块 ============ */
.section{padding:var(--sec-y) 0;}
.section-tight{padding:88px 0;}
.section-dark{background:var(--ink-900);color:rgba(255,255,255,.82);}
.section-dark .h2,.section-dark .h3{color:#fff;}
.section-dark .lead,.section-dark p{color:rgba(255,255,255,.7);}
.section-paper2{background:var(--paper-2);}
.section-head{max-width:760px;margin-bottom:56px;}
.section-head .h2{position:relative;padding-bottom:18px;}
.section-head .h2::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:64px;background:var(--accent);
  transform-origin:left center;
  animation:growLine .9s var(--ease) forwards;
}
@keyframes growLine{from{transform:scaleX(0);}to{transform:scaleX(1);}}
.section-desc{margin-top:18px;font-size:16.5px;color:var(--ink-500);line-height:1.9;}

/* ============ 能力 ============ */
.cap-media{position:relative;overflow:hidden;border-radius:var(--radius-card);min-height:340px;background:var(--ink-700);}
.cap-media img{width:100%;height:100%;min-height:340px;object-fit:cover;border-radius:0;transition:transform .6s var(--ease);}
.cap-media:hover img{transform:scale(1.03);}
.cap-media .cap-tag{
  position:absolute;top:20px;left:20px;
  background:rgba(14,15,18,.7);
  color:#fff;font-size:12px;letter-spacing:.1em;
  padding:6px 14px;border-radius:999px;
}
.cap-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:22px;
  background:linear-gradient(180deg,rgba(14,15,18,0),rgba(14,15,18,.9));
  color:rgba(255,255,255,.85);font-size:14px;
}
.cap-list{display:flex;flex-direction:column;}
.cap-item{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  padding:26px 0;
  border-top:1px solid var(--line);
  transition:padding-left .28s var(--ease);
}
.cap-item:last-child{border-bottom:1px solid var(--line);}
.cap-item:hover{padding-left:8px;}
.cap-item .idx{
  font-family:var(--font-num);
  font-size:15px;font-weight:700;color:var(--accent);letter-spacing:.04em;
  padding-top:4px;
}
.cap-item h3{margin-bottom:8px;font-size:21px;}
.cap-item p{font-size:15.5px;color:var(--ink-500);line-height:1.9;}

/* ============ 数据 ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;}
.stat{border-top:1px solid rgba(255,255,255,.18);padding-top:24px;}
.stat .num-v{
  font-family:var(--font-num);
  font-size:clamp(32px,4vw,56px);
  font-weight:700;
  line-height:1.05;
  letter-spacing:-.03em;
  color:#fff;
}
.stat .stat-label{margin-top:12px;font-size:13px;letter-spacing:.02em;color:rgba(255,255,255,.62);}

/* ============ 案例 Z 字 ============ */
.case-row{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:56px;
  align-items:center;
  padding:52px 0;
  border-top:1px solid var(--line);
}
.case-row:last-child{border-bottom:1px solid var(--line);}
.case-media{grid-column:span 6;overflow:hidden;border-radius:var(--radius-card);}
.case-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .6s var(--ease);}
.case-media:hover img{transform:scale(1.03);}
.case-body{grid-column:span 6;}
.case-row.reverse .case-media{order:2;}
.case-row.reverse .case-body{order:1;}
.case-body .h3{margin:14px 0 12px;font-size:24px;}
.case-body p{font-size:15.5px;color:var(--ink-500);}
.case-body .btn-text{margin-top:20px;}

/* ============ 方案 ============ */
.plan-wrap{display:grid;grid-template-columns:repeat(12,1fr);gap:56px;}
.plan-title{grid-column:span 4;position:sticky;top:110px;align-self:start;}
.plan-list{grid-column:span 8;}
.plan-row{
  display:grid;
  grid-template-columns:1.05fr 1.6fr auto;
  gap:28px;
  align-items:center;
  padding:30px 0;
  border-top:1px solid var(--line);
  transition:background .28s var(--ease),padding .28s var(--ease);
}
.plan-row:last-child{border-bottom:1px solid var(--line);}
.plan-row:hover{background:var(--paper-2);padding-left:16px;padding-right:16px;}
.plan-row h3{font-size:19px;margin-bottom:6px;}
.plan-row .plan-meta{font-size:13px;color:var(--ink-300);}
.plan-row p{font-size:15.5px;color:var(--ink-500);}
.plan-row .plan-cta{white-space:nowrap;}

/* ============ 最新信息 ============ */
.news-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:44px;flex-wrap:wrap;
}
.news-feature{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:40px;
  align-items:center;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.news-feature .nf-media{grid-column:span 5;overflow:hidden;border-radius:var(--radius-img);}
.news-feature .nf-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s var(--ease);}
.news-feature:hover .nf-media img{transform:scale(1.03);}
.news-feature .nf-body{grid-column:span 7;}
.news-feature .h3{font-size:clamp(20px,2vw,26px);margin:14px 0 12px;}
.news-feature .nf-desc{font-size:15.5px;color:var(--ink-500);}
.nf-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-300);margin-top:20px;flex-wrap:wrap;}
.news-list{margin-top:8px;}
.news-item{
  display:grid;
  grid-template-columns:96px 1fr 28px;
  gap:24px;
  align-items:center;
  padding:24px 12px;
  border-bottom:1px solid var(--line);
  transition:background .28s var(--ease),padding .28s var(--ease);
}
.news-item:hover{background:var(--paper-2);padding-left:20px;}
.news-date{font-family:var(--font-num);color:var(--ink-300);}
.news-date .d{display:block;font-size:26px;font-weight:700;color:var(--ink-900);line-height:1.1;transition:color .28s var(--ease);}
.news-date .m{display:block;font-size:12.5px;letter-spacing:.06em;margin-top:2px;}
.news-item:hover .news-date .d{color:var(--accent);}
.news-main h3{font-size:18.5px;margin-bottom:6px;transition:color .28s var(--ease);}
.news-item:hover .news-main h3{color:var(--accent);}
.news-main p{font-size:14.5px;color:var(--ink-500);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.news-main .news-tags{display:flex;gap:10px;margin-top:10px;flex-wrap:wrap;}
.news-arrow{color:var(--ink-300);transition:transform .28s var(--ease),color .28s var(--ease);}
.news-item:hover .news-arrow{transform:translateX(4px);color:var(--accent);}
.empty-state{
  border:1px dashed var(--line);
  border-radius:14px;
  padding:48px;
  text-align:center;
  background:var(--paper-2);
}
.empty-state p{font-size:16px;color:var(--ink-700);font-weight:600;}
.empty-state span{display:block;font-size:14px;color:var(--ink-300);margin:10px 0 16px;}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  text-align:left;
  padding:26px 0;
  font-size:17.5px;
  font-weight:600;
  color:var(--ink-900);
  transition:color .24s var(--ease);
}
.faq-q:hover{color:var(--accent);}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;transition:transform .3s var(--ease);}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink-900);border-radius:2px;transition:background .24s var(--ease);
}
.faq-icon::before{left:0;top:7.2px;width:16px;height:1.6px;}
.faq-icon::after{top:0;left:7.2px;height:16px;width:1.6px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-item.is-open .faq-q{color:var(--accent);}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-a-inner{padding:0 0 28px;max-width:820px;font-size:15.5px;line-height:1.9;color:var(--ink-500);}

/* ============ 联系 CTA ============ */
.cta{background:var(--ink-900);color:rgba(255,255,255,.8);padding:var(--sec-y) 0;}
.cta .h2{color:#fff;max-width:14em;}
.cta .cta-desc{margin-top:20px;font-size:16px;color:rgba(255,255,255,.68);max-width:32em;line-height:1.9;}
.cta-info{margin-top:40px;border-top:1px solid rgba(255,255,255,.16);}
.cta-info li{
  display:flex;justify-content:space-between;gap:20px;
  padding:16px 0;border-bottom:1px solid rgba(255,255,255,.12);
  font-size:15px;
}
.cta-info li span:first-child{color:rgba(255,255,255,.5);}
.cta-info li span:last-child{color:#fff;font-weight:600;}
.form-card{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-card);
  padding:34px;
}
.form-field{margin-bottom:20px;}
.form-field label{
  display:block;font-size:12.5px;letter-spacing:.04em;
  color:rgba(255,255,255,.6);margin-bottom:8px;
}
.form-field input,.form-field textarea{
  width:100%;
  background:transparent;
  border:1px solid rgba(255,255,255,.2);
  border-radius:var(--radius-input);
  padding:12px 14px;
  min-height:48px;
  color:#fff;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.form-field textarea{min-height:104px;resize:vertical;line-height:1.8;}
.form-field input::placeholder,.form-field textarea::placeholder{color:rgba(255,255,255,.35);}
.form-field input:focus,.form-field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,90,31,.16);
}
.form-note{font-size:12.5px;color:rgba(255,255,255,.45);margin-top:14px;line-height:1.7;}
.form-msg{margin-top:14px;font-size:13.5px;color:var(--ok);display:none;}
.form-msg.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.8);padding:80px 0 0;}
.footer-top{border-top:1px solid rgba(255,255,255,.12);padding-top:64px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:44px;
}
.footer-brand .brand-text{color:#fff;font-size:19px;}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:26em;}
.footer-social{display:flex;gap:12px;margin-top:24px;}
.footer-social a{
  width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
  display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .24s var(--ease),color .24s var(--ease),background .24s var(--ease);
}
.footer-social a:hover{border-color:var(--accent);color:var(--accent);}
.footer-social svg{width:17px;height:17px;fill:currentColor;}
.footer-col h4{
  font-size:13px;letter-spacing:.12em;text-transform:uppercase;
  color:rgba(255,255,255,.45);font-weight:600;margin-bottom:20px;
}
.footer-col li{margin-bottom:12px;}
.footer-col a{
  font-size:14.5px;color:rgba(255,255,255,.78);
  transition:color .24s var(--ease);
  border-bottom:1px solid transparent;
}
.footer-col a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.footer-col p{font-size:14.5px;color:rgba(255,255,255,.62);line-height:1.9;}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:26px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  :root{--gut:28px;--sec-y:108px;}
}
@media (max-width:1024px){
  :root{--gut:24px;--sec-y:92px;}
  .nav-desktop{display:none;}
  .menu-toggle{display:flex;}
  .hero{min-height:auto;padding:124px 0 48px;}
  .hero h1{max-width:100%;}
  .col-5,.col-6,.col-7,.col-4,.col-8{grid-column:span 12;}
  .hero-side{margin-top:44px;}
  .case-media,.case-body{grid-column:span 12;}
  .case-row.reverse .case-media{order:0;}
  .case-row.reverse .case-body{order:1;}
  .plan-title,.plan-list{grid-column:span 12;}
  .plan-title{position:static;}
  .news-feature .nf-media,.news-feature .nf-body{grid-column:span 12;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .stats{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .header-actions .icon-btn{display:none;}
  .section{padding:72px 0;}
  .hero-line{grid-template-columns:repeat(3,1fr);gap:16px;}
  .hero-stat .v{font-size:22px;}
  .cap-media,.cap-media img{min-height:240px;}
  .news-item{grid-template-columns:72px 1fr 20px;gap:16px;}
  .news-date .d{font-size:21px;}
  .news-main p{white-space:normal;}
  .cta-info li{flex-direction:column;gap:4px;align-items:flex-start;}
}
@media (max-width:520px){
  :root{--gut:16px;}
  .container{padding:0 var(--gut);}
  .hero{padding:112px 0 40px;}
  .hero-actions{gap:14px;}
  .hero-actions .btn{width:100%;}
  .hero-line{grid-template-columns:1fr;}
  .hero-line .hero-stat{border-top:1px solid rgba(255,255,255,.14);padding-top:14px;}
  .stats{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-q{font-size:16px;padding:22px 0;}
  .form-card{padding:24px;}
  .plan-row{grid-template-columns:1fr;gap:14px;}
  .plan-row .plan-cta{justify-self:start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink-900:#0E0F12;
  --ink-700:#23252B;
  --ink-500:#4A4F57;
  --ink-300:#8A9099;
  --paper:#F7F6F3;
  --paper-2:#FFFFFF;
  --line:#E3E1DC;
  --accent:#FF5A1F;
  --accent-ink:#C93F0C;
  --ok:#12B886;
  --shadow-1:0 1px 2px rgba(14,15,18,.04), 0 8px 24px -12px rgba(14,15,18,.12);
  --shadow-2:0 2px 6px rgba(14,15,18,.06), 0 20px 44px -20px rgba(14,15,18,.2);
  --radius-card:14px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-pill:999px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --maxw:1200px;
  --font-cn:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk","Inter",ui-monospace,"SFMono-Regular",Menlo,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-700);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.18;color:var(--ink-900)}
p{margin:0}
figure{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:rgba(255,90,31,.18)}

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

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:background-color .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
}
.btn-primary{background:var(--ink-900);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--accent-ink);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid var(--ink-900);color:var(--ink-900);background:transparent}
.btn-ghost:hover{background:var(--ink-900);color:#fff;transform:translateY(-1px)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-light{background:var(--paper-2);color:var(--ink-900)}
.btn-light:hover{background:var(--accent);color:#fff;transform:translateY(-1px)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid var(--ink-900);padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease);
}
.text-link:hover{color:var(--accent);border-bottom-width:2px;border-color:var(--accent)}
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:.06em;color:var(--ink-500);background:transparent;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.pill:hover{border-color:var(--accent);color:var(--accent)}
.pill-solid{background:rgba(255,90,31,.1);border-color:transparent;color:var(--accent-ink);font-weight:600}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,243,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),background-color .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -22px rgba(14,15,18,.4)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--ink-900);
}
.brand-mark svg{width:19px;height:19px}
.brand-text{
  font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink-900);
}
.nav-desktop{display:flex;align-items:center;gap:30px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-500);padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--accent);
  transition:width .26s var(--ease);
}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--ink-900);font-weight:600}
.nav-link.is-active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-desktop + .header-actions{margin-left:0}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:50%;color:var(--ink-700);
  border:1px solid transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:var(--paper-2);border-color:var(--line);color:var(--accent-ink)}
.menu-toggle{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:6px}
.menu-toggle span{display:block;width:20px;height:1.6px;background:var(--ink-900);transition:transform .24s var(--ease),opacity .24s var(--ease)}
.menu-toggle.is-open span:first-child{transform:translateY(3.8px) rotate(45deg)}
.menu-toggle.is-open span:last-child{transform:translateY(-3.8px) rotate(-45deg)}

.site-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:55;
  background:var(--paper);border-top:1px solid var(--line);
  padding:20px 24px 40px;
  transform:translateY(-10px);opacity:0;pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease);
  overflow-y:auto;
}
.site-drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.site-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 2px;font-size:19px;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.site-drawer a.drawer-link span{color:var(--ink-300);font-size:14px;font-family:var(--font-num)}
.site-drawer a.drawer-link:hover{color:var(--accent)}
.drawer-cta{margin-top:28px}

/* ============ 面包屑 ============ */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--paper)}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:18px 0;font-size:13px;color:var(--ink-300);
}
.breadcrumb a{color:var(--ink-300);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:#C9C6BF}
.breadcrumb .current{color:var(--ink-900);font-weight:500;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部 ============ */
.article-main{padding:56px 0 0}
.article-wrap{max-width:780px;margin:0 auto}
.article-head{border-bottom:1px solid var(--line);padding-bottom:26px}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.article-title{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:800;
  letter-spacing:-.025em;
  line-height:1.2;
  color:var(--ink-900);
  max-width:26ch;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:20px;font-size:13.5px;color:var(--ink-300);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#D4D1CA}
.article-meta .meta-num{font-family:var(--font-num);letter-spacing:.02em;color:var(--ink-500)}

.article-cover{margin:36px 0 8px;border-radius:var(--radius-img);overflow:hidden;background:var(--paper-2)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease)}
.article-cover:hover img{transform:scale(1.03)}

/* ============ 正文排版 ============ */
.article-body{
  margin-top:36px;
  font-size:17px;
  line-height:1.9;
  color:var(--ink-700);
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 22px}
.article-body h2{
  position:relative;
  margin:46px 0 18px;
  padding-left:14px;
  font-size:clamp(22px,2.4vw,27px);
  line-height:1.3;
  letter-spacing:-.02em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--accent);
}
.article-body h3{margin:34px 0 14px;font-size:19px;line-height:1.4}
.article-body h4{margin:26px 0 12px;font-size:17px;color:var(--ink-900)}
.article-body strong{color:var(--ink-900);font-weight:700}
.article-body a{color:var(--accent-ink);border-bottom:1px solid rgba(201,63,12,.35);transition:color .2s var(--ease),border-color .2s var(--ease)}
.article-body a:hover{color:var(--accent);border-color:var(--accent)}
.article-body ul{margin:0 0 24px}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.78em;width:9px;height:2px;border-radius:1px;background:var(--accent);
}
.article-body ol{margin:0 0 24px;counter-reset:artol}
.article-body ol li{position:relative;padding-left:34px;margin-bottom:12px;counter-increment:artol}
.article-body ol li::before{
  content:counter(artol,decimal-leading-zero);
  position:absolute;left:0;top:.06em;
  font-family:var(--font-num);font-size:13px;font-weight:600;color:var(--accent);
  letter-spacing:.06em;
}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;
  border-left:3px solid var(--accent);
  background:#FCFBF9;
  border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:var(--ink-500);
  font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:100%;border-radius:var(--radius-img);margin:26px 0 8px;
}
.article-body figcaption,
.article-body .caption{
  font-size:13px;color:var(--ink-300);line-height:1.7;margin-bottom:22px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;line-height:1.7;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.article-body th{background:#FBFAF8;color:var(--ink-900);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.article-body code{
  font-family:var(--font-num);font-size:14px;background:#F1EFEB;
  padding:2px 6px;border-radius:6px;color:var(--ink-900);
}

.article-empty{
  margin-top:40px;padding:48px 32px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--paper-2);
}
.article-empty h2{font-size:22px;margin-bottom:12px}
.article-empty p{color:var(--ink-500);font-size:15.5px;margin-bottom:24px}

.article-foot{
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
}
.article-foot .back-links{display:flex;flex-wrap:wrap;gap:22px}

/* ============ 相关阅读 ============ */
.related{margin-top:72px;padding-top:56px;border-top:1px solid var(--line)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:26px;
}
.section-head h2{font-size:clamp(22px,2.4vw,30px)}
.section-head .eyebrow{
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-ink);
  font-weight:600;margin-bottom:10px;
}
.related-list li{
  display:flex;align-items:flex-start;gap:20px;
  padding:22px 4px;border-bottom:1px solid var(--line);
  transition:background-color .22s var(--ease),padding-left .22s var(--ease);
}
.related-list li:hover{background:var(--paper-2);padding-left:12px}
.related-num{
  flex:0 0 42px;font-family:var(--font-num);font-size:14px;font-weight:600;
  color:var(--accent);letter-spacing:.08em;padding-top:4px;
}
.related-text{flex:1 1 auto;min-width:0}
.related-text h3{font-size:19px;font-weight:600;line-height:1.45;transition:color .2s var(--ease)}
.related-list li:hover .related-text h3{color:var(--accent-ink)}
.related-text p{margin-top:8px;font-size:14.5px;color:var(--ink-500);line-height:1.75}
.related-pill{flex:0 0 auto;padding-top:4px}

/* ============ 底部 CTA ============ */
.cta-band{margin-top:80px;background:var(--ink-900);color:rgba(247,246,243,.82)}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:34px;
  padding:64px 0;
}
.cta-copy{flex:1 1 420px;max-width:620px}
.cta-copy h2{color:#fff;font-size:clamp(24px,2.6vw,34px);margin-bottom:14px}
.cta-copy p{font-size:15.5px;line-height:1.9;color:rgba(247,246,243,.72)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(247,246,243,.8);padding:72px 0 0;margin-top:0}
.footer-top{border-top:1px solid rgba(255,255,255,.12);padding-top:56px}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08)}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14.5px;line-height:1.9;color:rgba(247,246,243,.62);max-width:34ch}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.14);
  transition:border-color .22s var(--ease),background-color .22s var(--ease);
}
.footer-social a svg{width:17px;height:17px;fill:rgba(247,246,243,.75)}
.footer-social a:hover{border-color:var(--accent);background:rgba(255,90,31,.14)}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.06em;margin-bottom:18px;font-weight:600}
.footer-col ul li{margin-bottom:12px}
.footer-col p{font-size:14.5px;line-height:2;color:rgba(247,246,243,.62)}
.footer-col a{font-size:14.5px;color:rgba(247,246,243,.72);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:56px;padding:24px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(247,246,243,.5);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{padding:0 28px}
}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .header-inner{gap:18px}
  .nav-desktop{gap:22px}
  .nav-link{font-size:14px}
}
@media (max-width:960px){
  .nav-desktop{display:none}
  .menu-toggle{display:flex}
  .header-actions .btn-sm{display:none}
  .container{padding:0 24px}
  .article-main{padding-top:40px}
  .related{margin-top:56px;padding-top:44px}
  .cta-inner{padding:52px 0}
}
@media (max-width:640px){
  .container{padding:0 20px}
  body{font-size:15.5px}
  .article-body{font-size:16.5px;line-height:1.9}
  .article-title{max-width:none}
  .breadcrumb .current{white-space:normal;max-width:100%}
  .related-list li{flex-wrap:wrap;gap:12px}
  .related-num{flex:0 0 34px}
  .related-pill{padding-top:0}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{margin-top:36px}
  .cta-actions .btn{width:100%}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}
@media (max-width:420px){
  .brand-text{font-size:15.5px}
  .article-meta{font-size:13px}
}

/* roulang page: category1 */
:root{
  --ink-900:#0E0F12;
  --ink-700:#23252B;
  --ink-500:#4A4F57;
  --ink-300:#8A9099;
  --paper:#F7F6F3;
  --paper-2:#FFFFFF;
  --line:#E3E1DC;
  --accent:#FF5A1F;
  --accent-ink:#C93F0C;
  --ok:#12B886;
  --shadow-1:0 1px 2px rgba(14,15,18,.04), 0 8px 24px -12px rgba(14,15,18,.12);
  --shadow-2:0 2px 6px rgba(14,15,18,.06), 0 18px 40px -18px rgba(14,15,18,.2);
  --r-card:14px;
  --r-img:12px;
  --r-btn:999px;
  --r-input:10px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --mono:"Inter","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:800;letter-spacing:-.02em;line-height:1.15;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
figure{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;}
.grid-container{max-width:1200px;}
.grid-x.grid-padding-x{margin-left:-16px;margin-right:-16px;}
.grid-x.grid-padding-x > .cell{padding-left:16px;padding-right:16px;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  background:rgba(247,246,243,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,246,243,.97);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px -24px rgba(14,15,18,.5);
}
.header-inner{display:flex;align-items:center;gap:22px;height:74px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:700;letter-spacing:-.01em;color:var(--ink-900);
  flex:0 0 auto;
}
.brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--ink-900);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px;}
.brand-text{font-size:17px;white-space:nowrap;font-weight:700;letter-spacing:-.01em;}
.nav-desktop{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-500);
  padding:6px 0;white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1.5px;
  background:var(--accent);transition:width .26s var(--ease);
}
.nav-link:hover{color:var(--ink-900);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink-900);font-weight:600;}
.nav-link.is-active::after{width:100%;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;
  border:1px solid var(--line);background:transparent;color:var(--ink-700);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{border-color:var(--accent);color:var(--accent-ink);transform:translateY(-1px);}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:transparent;cursor:pointer;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:6px;
}
.menu-toggle span{display:block;width:18px;height:1.6px;background:var(--ink-900);transition:transform .24s var(--ease);}
.menu-toggle[aria-expanded="true"] span:first-child{transform:translateY(3.8px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.8px) rotate(-45deg);}

.drawer{
  position:fixed;inset:0;z-index:90;background:var(--paper);
  display:flex;flex-direction:column;
  opacity:0;transform:translateY(-10px);
  transition:opacity .26s var(--ease),transform .26s var(--ease);
}
.drawer[hidden]{display:none;}
.drawer.is-open{opacity:1;transform:none;}
.drawer-panel{padding:104px 32px 48px;display:flex;flex-direction:column;gap:0;overflow-y:auto;}
.drawer-panel a.drawer-link{
  font-size:22px;font-weight:700;color:var(--ink-900);
  padding:20px 0;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-panel a.drawer-link.is-active{color:var(--accent-ink);}
.drawer-cta{margin-top:32px;}
.drawer-note{margin-top:18px;font-size:13px;color:var(--ink-300);}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;letter-spacing:0;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--ink-900);color:#fff;}
.btn-primary:hover{background:var(--accent-ink);color:#fff;transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-ink);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:var(--ink-900);color:var(--ink-900);}
.btn-ghost:hover{background:var(--ink-900);color:#fff;transform:translateY(-1px);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid var(--ink-900);padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.btn-text:hover{color:var(--accent-ink);border-bottom:2px solid var(--accent-ink);padding-bottom:1px;}
.btn-arrow::after{content:"→";font-family:var(--mono);transition:transform .22s var(--ease);}
.btn-arrow:hover::after{transform:translateX(4px);}

.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  font-weight:600;color:var(--accent);margin-bottom:14px;
}
.pill{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.06em;color:var(--ink-500);
  border:1px solid var(--line);border-radius:999px;padding:4px 12px;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.pill:hover{border-color:var(--accent);color:var(--accent-ink);}

/* ============ 页面首屏 ============ */
.page-hero{padding:140px 0 56px;border-bottom:1px solid var(--line);background:var(--paper);}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-300);margin-bottom:28px;}
.breadcrumb a{color:var(--ink-300);}
.breadcrumb a:hover{color:var(--accent-ink);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink-900);}
.page-title{font-size:clamp(30px,4.4vw,52px);margin-bottom:18px;}
.page-sub{font-size:17px;color:var(--ink-500);max-width:660px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

/* ============ 板块 ============ */
.section{padding:clamp(56px,7.5vw,110px) 0;}
.section-alt{background:var(--paper-2);}
.section-head{max-width:720px;margin-bottom:clamp(28px,4vw,52px);}
.section-title{font-size:clamp(24px,2.6vw,36px);margin-bottom:16px;}
.section-lead{font-size:16.5px;color:var(--ink-500);}
.section-rule{height:1px;background:var(--line);margin-top:22px;max-width:120px;}

/* ============ 图文分栏 ============ */
.split-block{align-items:center;}
.split-text p + p{margin-top:18px;}
.split-text .lead{font-size:17px;color:var(--ink-500);}
.split-media{margin-top:32px;}
.img-frame{
  border-radius:var(--r-img);overflow:hidden;background:#e9e7e2;
  box-shadow:var(--shadow-1);
}
.img-frame img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .6s var(--ease);
}
.img-frame:hover img{transform:scale(1.03);}
.img-caption{font-size:13px;color:var(--ink-300);margin-top:12px;}

/* ============ 编号步骤 ============ */
.steps{border-top:1px solid var(--line);}
.step{
  display:grid;grid-template-columns:96px 1fr;gap:24px;align-items:start;
  padding:28px 22px 28px 0;border-bottom:1px solid var(--line);
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.step:hover{background:var(--paper-2);transform:translateX(3px);}
.step-num{
  font-family:var(--mono);font-size:20px;font-weight:700;color:var(--accent);
  letter-spacing:.06em;font-variant-numeric:tabular-nums;padding-top:2px;
}
.step-body h3{font-size:21px;margin-bottom:8px;}
.step-body p{font-size:15.5px;color:var(--ink-500);max-width:660px;}

/* ============ 情形对照 ============ */
.compare-aside{position:relative;}
.compare-aside h2{font-size:clamp(22px,2.2vw,30px);margin-bottom:14px;}
.compare-aside p{font-size:15.5px;color:var(--ink-500);}
.compare-list{border-top:1px solid var(--line);}
.compare-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);gap:24px;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background .22s var(--ease);
}
.compare-row:hover{background:var(--paper-2);}
.compare-row h3{font-size:19px;line-height:1.35;}
.compare-row p{font-size:15.5px;color:var(--ink-500);}
.tag-inline{
  display:inline-block;font-size:12px;letter-spacing:.06em;color:var(--accent-ink);
  border:1px solid rgba(255,90,31,.35);border-radius:999px;padding:2px 10px;margin-bottom:10px;
}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  background:transparent;border:0;padding:24px 0;cursor:pointer;text-align:left;
  font-size:17.5px;font-weight:600;color:var(--ink-900);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent-ink);}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.faq-icon::before{left:0;top:7.2px;width:16px;height:1.6px;}
.faq-icon::after{left:7.2px;top:0;width:1.6px;height:16px;}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{padding:0 0 26px;max-width:740px;font-size:15.5px;color:var(--ink-500);line-height:1.9;}
.faq-a[hidden]{display:none;}

/* ============ 深色 CTA ============ */
.cta-band{position:relative;background:var(--ink-900);color:rgba(247,246,243,.84);overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  opacity:.22;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,15,18,.95) 0%,rgba(14,15,18,.78) 60%,rgba(14,15,18,.88) 100%);
}
.cta-band .container{position:relative;z-index:2;}
.cta-inner{padding:clamp(56px,7vw,104px) 0;}
.cta-band h2{color:#fff;font-size:clamp(24px,2.8vw,36px);margin-bottom:16px;}
.cta-band p{color:rgba(247,246,243,.78);font-size:15.5px;max-width:520px;}
.contact-list{margin-top:26px;display:flex;flex-direction:column;gap:10px;}
.contact-list li{font-size:14.5px;color:rgba(247,246,243,.72);display:flex;gap:10px;align-items:baseline;}
.contact-list span.k{color:rgba(247,246,243,.45);min-width:74px;display:inline-block;}

.form-card{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);
  padding:clamp(24px,3vw,34px);
}
.form-row{margin-bottom:20px;}
.field{display:block;}
.field .label{
  display:block;font-size:12.5px;letter-spacing:.08em;color:rgba(247,246,243,.6);
  margin-bottom:8px;
}
.field input,.field textarea{
  width:100%;background:transparent;border:0;border-bottom:1px solid rgba(255,255,255,.26);
  color:#fff;font-size:15.5px;line-height:1.6;padding:12px 2px;border-radius:0;
  box-shadow:none;margin:0;min-height:48px;
  transition:border-color .22s var(--ease);
}
.field textarea{min-height:96px;resize:vertical;}
.field input:focus,.field textarea:focus{
  outline:none;border-bottom-color:var(--accent);
}
.field input::placeholder,.field textarea::placeholder{color:rgba(247,246,243,.35);}
.form-tip{
  margin-top:16px;font-size:14px;color:var(--ok);display:flex;align-items:center;gap:8px;
}
.form-tip[hidden]{display:none;}
.form-note{margin-top:14px;font-size:12.5px;color:rgba(247,246,243,.45);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-900);color:rgba(247,246,243,.8);
  border-top:1px solid rgba(255,255,255,.12);
}
.footer-top{padding:76px 0 8px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14.5px;color:rgba(247,246,243,.7);line-height:1.85;max-width:320px;}
.footer-social{display:flex;gap:12px;margin-top:22px;}
.footer-social a{
  width:38px;height:38px;border-radius:999px;border:1px solid rgba(255,255,255,.18);
  display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.footer-social a svg{width:16px;height:16px;fill:rgba(247,246,243,.75);}
.footer-social a:hover{border-color:var(--accent);background:rgba(255,90,31,.12);}
.footer-social a:hover svg{fill:var(--accent);}
.footer-col h4{
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(247,246,243,.5);font-weight:600;margin-bottom:16px;
}
.footer-col ul li a{
  display:inline-block;padding:5px 0;font-size:14.5px;color:rgba(247,246,243,.78);
  transition:color .2s var(--ease);
}
.footer-col ul li a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.footer-col p{font-size:14.5px;color:rgba(247,246,243,.78);padding:5px 0;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:56px;padding:22px 0 34px;
  font-size:13px;color:rgba(247,246,243,.55);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding-left:28px;padding-right:28px;}
}
@media (max-width:1023px){
  .nav-desktop{gap:18px;}
  .nav-link{font-size:14px;}
  .compare-row{grid-template-columns:1fr;gap:10px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
  .footer-col:last-child{grid-column:span 3;}
}
@media (max-width:959px){
  .nav-desktop{display:none;}
  .menu-toggle{display:flex;}
  .header-actions{margin-left:auto;}
  .page-hero{padding-top:126px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:span 2;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding-left:20px;padding-right:20px;}
  .grid-x.grid-padding-x{margin-left:-10px;margin-right:-10px;}
  .grid-x.grid-padding-x > .cell{padding-left:10px;padding-right:10px;}
  .step{grid-template-columns:64px 1fr;gap:16px;padding-right:0;}
  .step-num{font-size:17px;}
  .compare-row{padding:22px 0;}
  .btn{width:100%;}
  .header-actions .btn-sm{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-col:last-child{grid-column:span 1;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:520px){
  .header-inner{height:66px;gap:14px;}
  .brand-text{font-size:15.5px;}
  .icon-btn{display:none;}
  .page-hero{padding-top:112px;}
  .section{padding:52px 0;}
  .page-sub{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink-900:#0E0F12;
  --ink-700:#23252B;
  --ink-500:#4A4F57;
  --ink-300:#8A9099;
  --paper:#F7F6F3;
  --paper-2:#FFFFFF;
  --line:#E3E1DC;
  --accent:#FF5A1F;
  --accent-ink:#C93F0C;
  --ok:#12B886;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:999px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(14,15,18,.04),0 8px 24px -12px rgba(14,15,18,.12);
  --shadow-2:0 2px 4px rgba(14,15,18,.05),0 18px 40px -18px rgba(14,15,18,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1200px;
  --mono:'Inter',ui-monospace,SFMono-Regular,Menlo,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-700);
  font-family:'Noto Sans SC','Inter',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;background-color:transparent;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;padding:0;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:120px 0;}
.section-sm{padding:84px 0;}
.band-dark{background:var(--ink-900);color:rgba(255,255,255,.82);}
.band-light{background:var(--paper);}
.band-white{background:var(--paper-2);}

.eyebrow{
  display:inline-block;
  font-family:var(--mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:18px;
}
.section-head{max-width:760px;margin-bottom:56px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,36px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.2;
  color:var(--ink-900);
}
.band-dark .section-head h2{color:#fff;}
.section-head .lead{margin-top:16px;color:var(--ink-500);font-size:17px;}
.band-dark .section-head .lead{color:rgba(255,255,255,.68);}

/* ---------- Header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:200;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-solid{
  background:rgba(247,246,243,.94);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom-color:var(--line);
  box-shadow:0 1px 2px rgba(14,15,18,.03);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--ink-900);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .24s var(--ease);
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:-.01em;
  color:#fff;
  transition:color .24s var(--ease);
  white-space:nowrap;
}
.site-header.is-solid .brand-text{color:var(--ink-900);}
.site-header.is-solid .brand-mark{background:var(--ink-900);}
.brand:hover .brand-mark{background:var(--accent-ink);}

.nav-desktop{display:flex;align-items:center;gap:34px;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:rgba(255,255,255,.86);
  padding:6px 0;
  transition:color .24s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:1px;
  background:var(--accent);
  transition:width .26s var(--ease);
}
.nav-link:hover{color:var(--accent);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{width:100%;}
.site-header.is-solid .nav-link{color:var(--ink-500);}
.site-header.is-solid .nav-link:hover{color:var(--accent-ink);}
.site-header.is-solid .nav-link.is-active{color:var(--ink-900);}

.header-actions{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:42px;height:42px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.9);
  border:1px solid rgba(255,255,255,.26);
  transition:color .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.icon-btn:hover{color:var(--accent);border-color:var(--accent);}
.site-header.is-solid .icon-btn{color:var(--ink-700);border-color:var(--line);}
.site-header.is-solid .icon-btn:hover{color:var(--accent-ink);border-color:var(--accent);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:50px;padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .2s var(--ease),box-shadow .24s var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--ink-900);color:#fff;}
.btn-primary:hover{background:var(--accent-ink);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--ink-900);}
.btn-ghost:hover{background:var(--ink-900);color:#fff;transform:translateY(-1px);}
.btn-inverse{background:#fff;color:var(--ink-900);}
.btn-inverse:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 22px;font-size:14px;}
.header-actions .btn-primary{background:#fff;color:var(--ink-900);}
.header-actions .btn-primary:hover{background:var(--accent);color:#fff;}
.site-header.is-solid .header-actions .btn-primary{background:var(--ink-900);color:#fff;}
.site-header.is-solid .header-actions .btn-primary:hover{background:var(--accent-ink);color:#fff;}

.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid var(--ink-900);
  padding-bottom:3px;
  transition:color .24s var(--ease),border-color .24s var(--ease);
}
.btn-text:hover{color:var(--accent-ink);border-color:var(--accent);}
.band-dark .btn-text{color:#fff;border-color:rgba(255,255,255,.6);}
.band-dark .btn-text:hover{color:var(--accent);border-color:var(--accent);}

.menu-toggle{display:none;width:44px;height:44px;position:relative;}
.menu-toggle span{
  position:absolute;left:11px;right:11px;height:1.6px;background:#fff;border-radius:2px;
  transition:transform .28s var(--ease),background .24s var(--ease),opacity .24s var(--ease);
}
.menu-toggle span:nth-child(1){top:18px;}
.menu-toggle span:nth-child(2){bottom:18px;}
.site-header.is-solid .menu-toggle span{background:var(--ink-900);}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);background:#fff;}
.menu-toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-6px) rotate(-45deg);background:#fff;}

.site-drawer{
  position:fixed;inset:0;
  z-index:190;
  background:var(--ink-900);
  padding:110px 32px 48px;
  display:flex;flex-direction:column;
  transform:translateY(-100%);
  opacity:0;visibility:hidden;
  transition:transform .34s var(--ease),opacity .3s var(--ease),visibility .3s;
}
.site-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:block;
  padding:20px 0;
  font-size:20px;font-weight:600;color:rgba(255,255,255,.86);
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:color .24s var(--ease),padding-left .24s var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--accent);padding-left:6px;}
.drawer-cta{margin-top:32px;align-self:flex-start;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  background:
    linear-gradient(115deg,rgba(14,15,18,.90) 0%,rgba(14,15,18,.78) 46%,rgba(14,15,18,.60) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;
  padding:160px 0 72px;
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;right:-140px;top:-120px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.24),rgba(255,90,31,0) 68%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;max-width:760px;}
.cat-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:900;
  line-height:1.16;
  letter-spacing:-.02em;
  color:#fff;
}
.cat-hero .hero-sub{
  margin-top:20px;
  font-size:17px;
  color:rgba(255,255,255,.76);
  max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin-top:36px;}

.hero-stats{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;
  gap:0;
  margin-top:56px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.16);
}
.hero-stat{flex:1 1 180px;padding-right:28px;}
.hero-stat .num{
  font-family:var(--mono);
  font-size:22px;font-weight:700;color:#fff;letter-spacing:-.01em;
}
.hero-stat .lbl{
  display:block;margin-top:4px;
  font-size:13px;color:rgba(255,255,255,.60);
}

/* ---------- Breadcrumb ---------- */
.crumb-bar{padding:26px 0 0;background:var(--paper);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--ink-300);
}
.crumb a{color:var(--ink-300);transition:color .2s var(--ease);}
.crumb a:hover{color:var(--accent-ink);}
.crumb .sep{color:var(--line);}
.crumb .current{color:var(--ink-900);font-weight:500;}

/* ---------- Steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  margin-top:8px;
}
.step{position:relative;padding:0 40px 0 0;}
.step-dot{
  position:relative;z-index:2;
  width:46px;height:46px;border-radius:50%;
  background:var(--paper-2);
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);
  font-size:14px;font-weight:700;
  color:var(--accent);
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.step:hover .step-dot{border-color:var(--accent);transform:translateY(-2px);}
.step-line{
  position:absolute;top:23px;left:46px;right:0;height:1px;
  background:var(--line);
}
.step:last-child .step-line{display:none;}
.step h3{
  margin-top:22px;
  font-size:20px;font-weight:700;letter-spacing:-.01em;
  color:var(--ink-900);
}
.step p{margin-top:10px;font-size:15px;color:var(--ink-500);line-height:1.85;}

/* ---------- Two columns list ---------- */
.two-col{margin-top:0;}
.list-col h3{
  font-size:20px;font-weight:700;color:var(--ink-900);
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:8px;
}
.check-list li{
  position:relative;
  padding:18px 0 18px 26px;
  border-bottom:1px solid var(--line);
  font-size:15.5px;
  color:var(--ink-500);
  line-height:1.85;
}
.check-list li::before{
  content:"";
  position:absolute;left:0;top:27px;
  width:10px;height:2px;background:var(--accent);
}
.check-list li:last-child{border-bottom:0;}
.check-list li strong{color:var(--ink-900);font-weight:600;}

.quote-bar{
  margin-top:56px;
  border-left:3px solid var(--accent);
  background:var(--paper-2);
  border-radius:var(--radius-card);
  padding:32px 36px;
  box-shadow:var(--shadow-1);
}
.quote-bar p{
  font-size:17px;
  color:var(--ink-900);
  font-weight:500;
  line-height:1.85;
}
.quote-bar span{
  display:block;margin-top:12px;
  font-size:13px;color:var(--ink-300);
}

/* ---------- Verify compare ---------- */
.compare{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.compare-media{
  position:relative;
  border-radius:var(--radius-img);
  overflow:hidden;
  aspect-ratio:4/3;
  box-shadow:var(--shadow-1);
}
.compare-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.compare-media:hover img{transform:scale(1.03);}
.compare-media::after{
  content:"身份确认 · 安全提示";
  position:absolute;left:20px;bottom:20px;
  font-size:12px;letter-spacing:.08em;
  color:#fff;
  background:rgba(14,15,18,.66);
  padding:7px 14px;border-radius:999px;
}
.compare-list li{
  display:flex;gap:22px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}
.compare-list li:first-child{padding-top:0;}
.compare-list li:last-child{border-bottom:0;padding-bottom:0;}
.compare-list .no{
  font-family:var(--mono);
  font-size:14px;font-weight:700;color:var(--accent);
  padding-top:4px;
  flex:0 0 34px;
}
.compare-list h3{font-size:20px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;}
.compare-list p{margin-top:8px;font-size:15px;color:var(--ink-500);line-height:1.85;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);margin-top:8px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:26px 0;
  text-align:left;
  font-size:17.5px;font-weight:600;
  color:var(--ink-900);
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--accent-ink);}
.faq-icon{
  position:relative;flex:0 0 18px;width:18px;height:18px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:0;top:8px;
  width:18px;height:1.6px;background:var(--ink-500);
  transition:transform .26s var(--ease),background .22s var(--ease);
}
.faq-icon::after{transform:rotate(90deg);}
.faq-item.is-open .faq-icon::before{background:var(--accent);}
.faq-item.is-open .faq-icon::after{transform:rotate(0deg);background:var(--accent);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a-inner{padding:0 0 26px;font-size:15.5px;color:var(--ink-500);line-height:1.9;max-width:820px;}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--ink-900);
  color:rgba(255,255,255,.78);
  padding:96px 0;
}
.cta-inner{
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
}
.cta-inner h2{
  font-size:clamp(24px,2.6vw,36px);
  font-weight:800;letter-spacing:-.02em;color:#fff;line-height:1.24;
}
.cta-inner p{margin-top:16px;font-size:16px;color:rgba(255,255,255,.66);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:18px;justify-content:flex-end;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink-900);
  color:rgba(255,255,255,.80);
  padding:96px 0 0;
  border-top:1px solid rgba(255,255,255,.12);
}
.footer-top{border-top:1px solid rgba(255,255,255,.12);padding-top:64px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:48px;
}
.footer-brand .brand{margin-bottom:20px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14.5px;color:rgba(255,255,255,.62);max-width:320px;line-height:1.85;}
.footer-social{display:flex;gap:14px;margin-top:24px;}
.footer-social a{
  width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
  display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.footer-social svg{width:17px;height:17px;fill:rgba(255,255,255,.72);transition:fill .24s var(--ease);}
.footer-social a:hover{border-color:var(--accent);background:rgba(255,90,31,.12);}
.footer-social a:hover svg{fill:var(--accent);}
.footer-col h4{
  font-size:13px;font-weight:600;letter-spacing:.12em;
  color:rgba(255,255,255,.48);
  margin-bottom:20px;
}
.footer-col ul li{margin-bottom:12px;}
.footer-col a{
  font-size:14.5px;color:rgba(255,255,255,.80);
  transition:color .22s var(--ease);
}
.footer-col a:hover{color:var(--accent);text-decoration:underline;}
.footer-col p{font-size:14.5px;color:rgba(255,255,255,.66);margin-bottom:10px;}
.footer-bottom{
  margin-top:64px;
  padding:26px 0;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.46);
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- Grid helpers (Foundation override) ---------- */
.grid-x{margin-left:-16px;margin-right:-16px;}
.grid-x>.cell{padding-left:16px;padding-right:16px;}

/* ---------- Responsive ---------- */
@media (max-width:1280px){
  .compare{gap:40px;}
  .cta-inner{gap:36px;}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:96px 0;}
  .section-sm{padding:72px 0;}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:44px;}
  .step:nth-child(2) .step-line{display:none;}
  .compare{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .cta-inner{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
}
@media (max-width:960px){
  .nav-desktop{display:none;}
  .menu-toggle{display:block;}
  .header-actions .btn-primary{display:none;}
  .header-actions{gap:10px;}
  .cat-hero{padding:132px 0 60px;}
  .hero-stats{gap:22px 0;}
  .hero-stat{flex:1 1 50%;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .section{padding:72px 0;}
  .section-sm{padding:56px 0;}
  .section-head{margin-bottom:36px;}
  .brand-text{font-size:15px;}
  .cat-hero{padding:118px 0 52px;}
  .cat-hero .hero-sub{font-size:15.5px;}
  .hero-actions{gap:16px;margin-top:28px;}
  .hero-actions .btn{width:100%;}
  .hero-stat{flex:1 1 100%;padding-right:0;}
  .steps{grid-template-columns:1fr;}
  .step{padding-right:0;}
  .step-line{display:none;}
  .step-dot{width:40px;height:40px;}
  .quote-bar{padding:24px 22px;}
  .quote-bar p{font-size:15.5px;}
  .compare-list li{gap:16px;}
  .faq-q{font-size:16px;padding:22px 0;gap:16px;}
  .footer-grid{grid-template-columns:1fr;gap:36px;}
  .site-footer{padding-top:72px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .cta-inner h2{font-size:24px;}
  .cta-actions .btn{width:100%;}
  .cta-band{padding:72px 0;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --ink-900:#0E0F12;
  --ink-800:#16181D;
  --ink-700:#23252B;
  --ink-500:#4A4F57;
  --ink-300:#8A9099;
  --paper:#F7F6F3;
  --paper-2:#FFFFFF;
  --line:#E3E1DC;
  --line-dark:rgba(255,255,255,.12);
  --line-dark-2:rgba(255,255,255,.07);
  --accent:#FF5A1F;
  --accent-ink:#C93F0C;
  --ok:#12B886;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --shadow-1:0 1px 2px rgba(14,15,18,.04),0 8px 24px -12px rgba(14,15,18,.12);
  --shadow-2:0 2px 6px rgba(0,0,0,.28),0 22px 48px -22px rgba(0,0,0,.6);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--paper);
  font-family:"Noto Sans SC","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease),border-color .24s var(--ease);}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.02em;line-height:1.15;color:var(--paper);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.grid-padding-x{margin-left:-16px;margin-right:-16px;}
.grid-padding-x>.cell{padding-left:16px;padding-right:16px;}

/* ============ Header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  color:var(--paper);
  border-bottom:1px solid transparent;
  background:transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),color .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,246,243,.96);
  border-bottom-color:var(--line);
  color:var(--ink-900);
  backdrop-filter:blur(12px);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  transition:transform .24s var(--ease);
}
.brand-mark svg{width:19px;height:19px;}
.brand:hover .brand-mark{transform:translateY(-1px);}
.brand-text{font-weight:700;letter-spacing:-0.01em;font-size:17px;white-space:nowrap;}
.nav-desktop{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;opacity:.8;
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);
}
.nav-link:hover{opacity:1;color:var(--accent);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{opacity:1;font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid rgba(255,255,255,.2);color:currentColor;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.icon-btn:hover{border-color:var(--accent);color:var(--accent);}
.site-header.is-scrolled .icon-btn{border-color:var(--line);}
.site-header.is-scrolled .icon-btn:hover{border-color:var(--accent);}
.menu-toggle{
  display:none;flex-direction:column;justify-content:center;align-items:center;gap:6px;
  width:44px;height:44px;background:none;border:none;padding:0;
}
.menu-toggle span{display:block;width:22px;height:1.5px;background:currentColor;border-radius:2px;transition:transform .26s var(--ease);}
.menu-toggle.is-open span:first-child{transform:translateY(3.75px) rotate(45deg);}
.menu-toggle.is-open span:last-child{transform:translateY(-3.75px) rotate(-45deg);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease);
}
.btn-sm{height:42px;padding:0 22px;font-size:14px;}
.btn-primary{background:var(--paper);color:var(--ink-900);}
.btn-primary:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}
.site-header.is-scrolled .btn-primary{background:var(--ink-900);color:#fff;}
.site-header.is-scrolled .btn-primary:hover{background:var(--accent-ink);}
.btn-ghost{background:transparent;color:var(--paper);border-color:rgba(255,255,255,.28);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.btn-solid{background:var(--accent);color:#fff;}
.btn-solid:hover{background:var(--accent-ink);transform:translateY(-1px);}
.btn-line{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--paper);border-bottom:1px solid rgba(255,255,255,.5);padding-bottom:3px;border-radius:0;
}
.btn-line:hover{color:var(--accent);border-bottom-width:2px;border-bottom-color:var(--accent);}

/* ============ Drawer ============ */
.site-drawer{
  position:fixed;left:0;right:0;top:76px;bottom:0;z-index:110;
  background:var(--ink-900);border-top:1px solid var(--line-dark);
  padding:20px 24px 40px;display:flex;flex-direction:column;gap:8px;
  transform:translateY(-14px);opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
  overflow-y:auto;
}
.site-drawer.is-open{transform:none;opacity:1;visibility:visible;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  font-size:19px;font-weight:600;padding:18px 2px;border-bottom:1px solid var(--line-dark-2);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--accent);}
.drawer-cta{margin-top:28px;align-self:flex-start;}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:170px 0 60px;
  background:var(--ink-900);
  border-bottom:1px solid var(--line-dark);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center right;
  opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,15,18,.96) 0%,rgba(14,15,18,.86) 46%,rgba(14,15,18,.6) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-300);margin-bottom:28px;}
.crumb a:hover{color:var(--accent);}
.crumb .sep{opacity:.5;}
.crumb .current{color:var(--paper);}
.hero-eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:20px;
}
.page-title{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;
  letter-spacing:-0.02em;
  max-width:16em;
}
.page-title .hl{
  background:linear-gradient(transparent 62%,rgba(255,90,31,.32) 62%);
}
.hero-sub{
  margin-top:22px;max-width:34em;color:rgba(247,246,243,.72);font-size:17px;line-height:1.85;
}
.hero-actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap;margin-top:34px;}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line-dark);
}
.metric-num{
  font-family:"Space Grotesk","Inter",monospace;font-weight:700;
  font-size:clamp(24px,2.6vw,34px);letter-spacing:-0.02em;color:var(--paper);line-height:1.1;
}
.metric-num em{font-style:normal;color:var(--accent);font-size:.62em;margin-left:4px;}
.metric-label{font-size:13px;color:var(--ink-300);margin-top:8px;}

/* ============ Sections ============ */
.section{padding:110px 0;position:relative;}
.section--tint{background:var(--ink-800);border-top:1px solid var(--line-dark-2);border-bottom:1px solid var(--line-dark-2);}
.section-head{max-width:760px;margin-bottom:56px;}
.eyebrow{
  display:block;font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:16px;
}
.sec-title{font-size:clamp(24px,2.6vw,36px);font-weight:800;}
.sec-title::after{
  content:"";display:block;width:56px;height:2px;background:var(--accent);margin-top:20px;
  transform-origin:left;animation:growLine .7s var(--ease) both;
}
@keyframes growLine{from{transform:scaleX(0);}to{transform:scaleX(1);}}
.sec-lead{margin-top:20px;color:rgba(247,246,243,.7);font-size:16.5px;line-height:1.9;max-width:44em;}

/* ============ Timeline ============ */
.timeline{position:relative;margin-top:8px;padding-left:60px;}
.timeline::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:1px;background:var(--line-dark);
}
.tl-item{position:relative;padding-bottom:32px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-60px;top:4px;width:23px;height:23px;border-radius:50%;
  border:1px solid var(--line-dark);background:var(--ink-900);
}
.tl-item::after{
  content:"";position:absolute;left:-53px;top:11px;width:9px;height:9px;border-radius:50%;
  background:var(--accent);transition:transform .24s var(--ease);
}
.section--tint .tl-item::before{background:var(--ink-800);}
.tl-item:hover::after{transform:scale(1.35);}
.tl-num{
  font-family:"Space Grotesk","Inter",monospace;font-size:13px;font-weight:700;
  letter-spacing:.16em;color:var(--accent);display:block;margin-bottom:10px;
}
.tl-title{font-size:21px;font-weight:700;margin-bottom:12px;}
.tl-item:hover .tl-title{color:var(--accent);}
.tl-desc{color:rgba(247,246,243,.68);font-size:15.5px;line-height:1.9;max-width:60em;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.tag{
  font-size:12px;letter-spacing:.06em;padding:5px 13px;border-radius:999px;
  border:1px solid var(--line-dark);color:rgba(247,246,243,.72);background:transparent;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.tag:hover{border-color:var(--accent);color:var(--accent);}

/* ============ Device compare ============ */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:32px;}
.panel{
  background:var(--ink-700);border:1px solid var(--line-dark-2);border-radius:var(--r-card);
  padding:34px 32px;transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.panel:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.panel-title{font-size:20px;font-weight:700;display:flex;align-items:center;gap:10px;}
.panel-title span{
  width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block;
}
.panel-list{margin-top:20px;}
.panel-list li{
  padding:15px 0;border-top:1px solid var(--line-dark-2);font-size:15px;
  color:rgba(247,246,243,.74);display:flex;gap:12px;
}
.panel-list li b{color:var(--paper);font-weight:600;flex:0 0 auto;}
.panel-list li:last-child{padding-bottom:0;}

.quote-bar{
  margin-top:40px;padding:28px 32px;border-left:3px solid var(--accent);
  background:rgba(255,255,255,.035);border-radius:0 var(--r-card) var(--r-card) 0;
  font-size:17px;line-height:1.95;color:rgba(247,246,243,.86);
}

/* ============ Scenes ============ */
.scene-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start;}
.scene-main{
  background:var(--ink-700);border:1px solid var(--line-dark-2);border-radius:var(--r-card);overflow:hidden;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.scene-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.scene-main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .4s var(--ease);}
.scene-main:hover img{transform:scale(1.03);}
.scene-body{padding:30px 32px 34px;}
.scene-body h3{font-size:21px;margin-bottom:14px;}
.scene-body p{color:rgba(247,246,243,.68);font-size:15.5px;}
.scene-side{display:flex;flex-direction:column;gap:20px;}
.scene-mini{
  background:var(--ink-700);border:1px solid var(--line-dark-2);border-radius:var(--r-card);
  padding:24px 26px;transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.scene-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,90,31,.4);}
.scene-mini h4{font-size:17px;margin-bottom:10px;}
.scene-mini p{font-size:14.5px;color:rgba(247,246,243,.66);}
.scene-mini .mini-num{
  font-family:"Space Grotesk",monospace;font-size:12px;letter-spacing:.16em;color:var(--accent);
  display:block;margin-bottom:12px;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.accordion{background:transparent;border:none;margin:0;}
.accordion-item{border:none;border-top:1px solid var(--line-dark);background:transparent;}
.accordion-item:last-child{border-bottom:1px solid var(--line-dark);}
.accordion-title{
  border:none;background:transparent;padding:24px 52px 24px 0;color:var(--paper);
  font-size:17.5px;font-weight:600;line-height:1.6;position:relative;
  transition:color .24s var(--ease);
}
.accordion-title:hover{color:var(--accent);}
.accordion-title::before{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  color:var(--accent);font-size:22px;font-weight:400;line-height:1;transition:transform .26s var(--ease);
}
.accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);}
.accordion-content{
  background:transparent;border:none;color:rgba(247,246,243,.68);
  padding:0 60px 26px 0;font-size:15.5px;line-height:1.95;
}
.accordion-content p+p{margin-top:12px;}
.accordion-content.is-open,
.accordion-item.is-active .accordion-content{display:block;}

/* ============ CTA band ============ */
.cta-band{
  background:var(--ink-800);border-top:1px solid var(--line-dark);padding:88px 0;
}
.cta-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;}
.cta-inner h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;}
.cta-inner p{margin-top:16px;color:rgba(247,246,243,.68);font-size:16px;max-width:34em;}
.cta-actions{display:flex;gap:20px;flex-wrap:wrap;justify-content:flex-start;}

/* ============ Footer ============ */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line-dark);padding:72px 0 28px;}
.footer-top{display:block;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:20px;}
.footer-brand p{color:rgba(247,246,243,.6);font-size:14.5px;max-width:26em;}
.footer-social{display:flex;gap:12px;margin-top:22px;}
.footer-social a{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--line-dark);
  display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.footer-social svg{width:17px;height:17px;fill:rgba(247,246,243,.7);transition:fill .24s var(--ease);}
.footer-social a:hover{border-color:var(--accent);background:rgba(255,90,31,.1);}
.footer-social a:hover svg{fill:var(--accent);}
.footer-col h4{font-size:14px;letter-spacing:.04em;margin-bottom:18px;color:var(--paper);}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a,.footer-col p{font-size:14px;color:rgba(247,246,243,.62);}
.footer-col a:hover{color:var(--accent);text-decoration:underline;}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,246,243,.45);
}

/* ============ Responsive ============ */
@media (max-width:1279px){
  .container{padding:0 28px;}
}
@media (max-width:959px){
  .nav-desktop{display:none;}
  .menu-toggle{display:flex;}
  .container{padding:0 24px;}
  .section{padding:84px 0;}
  .page-hero{padding:140px 0 52px;}
  .compare-wrap{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .grid-padding-x{margin-left:-10px;margin-right:-10px;}
  .grid-padding-x>.cell{padding-left:10px;padding-right:10px;}
  body{font-size:15.5px;}
  .header-inner{height:66px;}
  .site-drawer{top:66px;}
  .brand-text{font-size:15px;}
  .section{padding:64px 0;}
  .page-hero{padding:118px 0 44px;}
  .hero-metrics{grid-template-columns:1fr;gap:18px;}
  .hero-metrics .metric{padding-top:14px;border-top:1px solid var(--line-dark-2);}
  .hero-actions{gap:18px;}
  .btn{height:46px;padding:0 22px;font-size:14.5px;}
  .timeline{padding-left:44px;}
  .tl-item::before{left:-44px;width:19px;height:19px;}
  .tl-item::after{left:-38px;top:10px;width:7px;height:7px;}
  .timeline::before{left:9px;}
  .panel{padding:26px 22px;}
  .quote-bar{padding:22px 20px;font-size:15.5px;}
  .scene-body{padding:24px 20px 26px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .accordion-content{padding-right:12px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}

/* roulang page: category4 */
:root{
  --ink-900:#0E0F12;
  --ink-700:#23252B;
  --ink-500:#4A4F57;
  --ink-300:#8A9099;
  --paper:#F7F6F3;
  --paper-2:#FFFFFF;
  --line:#E3E1DC;
  --accent:#FF5A1F;
  --accent-ink:#C93F0C;
  --ok:#12B886;
  --radius-card:14px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,15,18,.04), 0 8px 24px -12px rgba(14,15,18,.12);
  --shadow-2:0 2px 4px rgba(14,15,18,.05), 0 18px 40px -18px rgba(14,15,18,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-sans:'Noto Sans SC','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-mono:'Space Grotesk','Inter',ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.02em;line-height:1.15}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.section{padding:100px 0}
.section-tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{font-size:clamp(24px,2.6vw,36px)}
.section-head p{margin-top:16px;color:var(--ink-500);font-size:16.5px}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn-primary{background:var(--ink-900);color:#fff}
.btn-primary:hover{background:var(--accent-ink);transform:translateY(-1px)}
.btn-ghost{border-color:var(--ink-900);color:var(--ink-900);background:transparent}
.btn-ghost:hover{background:var(--ink-900);color:#fff;transform:translateY(-1px)}
.btn-text{height:auto;padding:0 0 4px;border-radius:0;border-bottom:1px solid var(--ink-900);color:var(--ink-900);background:none}
.btn-text:hover{color:var(--accent);border-color:var(--accent);border-bottom-width:2px}
.btn-light{background:var(--accent);color:#fff}
.btn-light:hover{background:var(--accent-ink);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}

/* 头部导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{background:rgba(247,246,243,.95);backdrop-filter:blur(10px);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:22px;height:76px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink-900);white-space:nowrap}
.brand-mark{width:32px;height:32px;border-radius:9px;background:var(--ink-900);display:grid;place-items:center;flex:none}
.brand-mark svg{width:19px;height:19px}
.nav-desktop{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{position:relative;font-size:15px;color:var(--ink-500);padding:6px 0;transition:color .2s var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--accent);transition:width .28s var(--ease)}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--ink-900);font-weight:600}
.nav-link.is-active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:14px}
.icon-btn{width:38px;height:38px;border-radius:var(--radius-pill);display:grid;place-items:center;color:var(--ink-500);border:1px solid var(--line);transition:.2s var(--ease)}
.icon-btn:hover{color:var(--ink-900);border-color:var(--ink-900)}
.menu-toggle{display:none;width:44px;height:44px;position:relative}
.menu-toggle span{position:absolute;left:12px;right:12px;height:1.5px;background:var(--ink-900);transition:.25s var(--ease)}
.menu-toggle span:nth-child(1){top:18px}
.menu-toggle span:nth-child(2){top:25px}
.menu-toggle[aria-expanded="true"] span:nth-child(1){top:21.5px;transform:rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){top:21.5px;transform:rotate(-45deg)}

/* 移动抽屉 */
.site-drawer{
  position:fixed;top:76px;left:0;right:0;bottom:0;z-index:55;
  background:var(--paper);padding:24px 24px 48px;overflow-y:auto;
  display:flex;flex-direction:column;
  opacity:0;transform:translateY(-8px);pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.site-drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer-link{display:block;padding:16px 0;font-size:19px;font-weight:600;color:var(--ink-900);border-bottom:1px solid var(--line)}
.drawer-link.is-active{color:var(--accent)}
.drawer-cta{margin-top:28px}

/* Hero */
.page-hero{padding:148px 0 0;background:var(--paper);position:relative}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-copy h1{font-size:clamp(30px,4.4vw,52px);font-weight:800}
.hero-sub{margin-top:18px;font-size:17px;color:var(--ink-500);max-width:44ch}
.hero-actions{display:flex;align-items:center;gap:22px;margin-top:32px;flex-wrap:wrap}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-1)}
.hero-meta{
  display:grid;grid-template-columns:repeat(3,1fr);gap:32px;
  margin-top:64px;padding:28px 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.meta-item{display:flex;flex-direction:column;gap:6px}
.meta-num{font-family:var(--font-mono);font-size:clamp(26px,3vw,38px);font-weight:700;color:var(--ink-900);line-height:1}
.meta-label{font-size:13px;color:var(--ink-300)}

/* Mosaic */
.mosaic{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.mosaic-main{grid-column:span 7;position:relative;border-radius:var(--radius-card);overflow:hidden;min-height:420px}
.mosaic-main img{width:100%;height:100%;min-height:420px;object-fit:cover;transition:transform .55s var(--ease)}
.mosaic-main:hover img{transform:scale(1.03)}
.mosaic-overlay{position:absolute;left:0;right:0;bottom:0;padding:30px 28px;background:linear-gradient(180deg,rgba(14,15,18,0) 0%,rgba(14,15,18,.84) 60%);color:#fff}
.mosaic-overlay h3{color:#fff;font-size:22px;margin:14px 0 8px}
.mosaic-overlay p{color:rgba(255,255,255,.78);font-size:15px;line-height:1.75}
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:.06em;color:var(--ink-500);transition:.2s var(--ease);
}
.pill:hover{border-color:var(--accent);color:var(--accent)}
.pill-light{border-color:rgba(255,255,255,.36);color:rgba(255,255,255,.86)}
.pill-light:hover{border-color:var(--accent);color:var(--accent)}
.mosaic-side{grid-column:span 5;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.mosaic-mini{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.mosaic-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.mosaic-mini img{width:100%;aspect-ratio:16/11;object-fit:cover}
.mini-body{padding:18px 18px 22px}
.mini-body h3{font-size:17px;margin-bottom:8px}
.mini-body p{font-size:14px;color:var(--ink-500);line-height:1.7}
.mosaic-list{grid-column:span 7;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 28px 6px}
.mosaic-list h3{font-size:19px;margin-bottom:6px}
.tight-list li{
  display:flex;align-items:flex-start;gap:18px;padding:18px 0;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.tight-list li:last-child{border-bottom:0}
.tight-list .num{font-family:var(--font-mono);font-size:13px;font-weight:600;color:var(--accent);padding-top:5px;flex:none}
.tight-list h4{font-size:16px;margin-bottom:4px;transition:color .2s var(--ease)}
.tight-list p{font-size:14px;color:var(--ink-500);line-height:1.7}
.tight-list .arrow{margin-left:auto;color:var(--ink-300);transition:transform .2s var(--ease),color .2s var(--ease);flex:none}
.tight-list li:hover h4{color:var(--accent)}
.tight-list li:hover .arrow{transform:translateX(4px);color:var(--accent)}
.mosaic-note{
  grid-column:span 5;background:var(--ink-900);color:rgba(255,255,255,.76);
  border-radius:var(--radius-card);padding:34px 30px;display:flex;flex-direction:column;gap:14px;justify-content:center;
}
.mosaic-note h3{color:#fff;font-size:20px}
.mosaic-note p{font-size:15px;line-height:1.8}
.mosaic-note a{color:var(--accent);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:gap .2s var(--ease)}
.mosaic-note a:hover{gap:12px}

/* 分栏速查 */
.split{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.split-copy h2{font-size:clamp(24px,2.6vw,36px)}
.split-copy p{margin-top:18px;color:var(--ink-500);font-size:16.5px}
.split-copy .btn-text{margin-top:24px;display:inline-block}
.check-list li{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.check-list li:first-child{padding-top:0}
.check-list .idx{font-family:var(--font-mono);font-size:14px;font-weight:600;color:var(--accent);padding-top:4px;flex:none}
.check-list h4{font-size:17px;margin-bottom:6px}
.check-list p{font-size:15px;color:var(--ink-500);line-height:1.75}

/* 服务路径带 */
.path-band{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.path-item{padding:34px 30px;border-right:1px solid var(--line)}
.path-item:last-child{border-right:0}
.path-item .path-index{font-family:var(--font-mono);font-size:13px;font-weight:600;color:var(--accent);letter-spacing:.08em}
.path-item h4{font-size:18px;margin:12px 0 8px}
.path-item p{font-size:15px;color:var(--ink-500);line-height:1.75}

/* FAQ */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 4px;font-size:17px;font-weight:600;color:var(--ink-900);text-align:left;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-icon{position:relative;width:16px;height:16px;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink-900);transition:.24s var(--ease)}
.faq-icon::before{left:0;top:7.25px;width:16px;height:1.5px}
.faq-icon::after{top:0;left:7.25px;width:1.5px;height:16px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.is-open .faq-q{color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a-inner{padding:0 4px 26px;font-size:15.5px;line-height:1.9;color:var(--ink-500);max-width:74ch}
.faq-item.is-open .faq-a{max-height:340px}

/* CTA */
.cta-band{background:var(--ink-900);color:rgba(255,255,255,.78);padding:88px 0}
.cta-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,34px)}
.cta-band p{margin-top:16px;font-size:16px;line-height:1.85}
.cta-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.cta-info{display:flex;flex-direction:column;gap:8px;font-size:15px;color:rgba(255,255,255,.7)}
.cta-info strong{color:#fff;font-weight:600}
.cta-band .btn-text{color:#fff;border-color:rgba(255,255,255,.6)}
.cta-band .btn-text:hover{color:var(--accent);border-color:var(--accent)}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(247,246,243,.8);padding:72px 0 0}
.footer-top{border-top:1px solid rgba(255,255,255,.12);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .brand{color:#fff}
.footer-brand .brand-mark{background:var(--accent)}
.footer-brand p{margin-top:18px;font-size:15px;line-height:1.85;color:rgba(247,246,243,.72);max-width:34ch}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{width:36px;height:36px;border-radius:var(--radius-pill);border:1px solid rgba(255,255,255,.18);display:grid;place-items:center;transition:.2s var(--ease)}
.footer-social a svg{width:17px;height:17px;fill:currentColor}
.footer-social a:hover{border-color:var(--accent);color:var(--accent)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:15px;color:rgba(247,246,243,.72);transition:.2s var(--ease)}
.footer-col a:hover{color:var(--accent);text-decoration:underline}
.footer-col p{font-size:15px;color:rgba(247,246,243,.72);margin-bottom:8px}
.footer-bottom{
  margin-top:56px;padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,246,243,.6);
}

/* 入场动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* 响应式 */
@media (max-width:1100px){
  .nav-desktop{gap:18px}
  .nav-link{font-size:14px}
}
@media (max-width:960px){
  .container{padding:0 24px}
  .nav-desktop{display:none}
  .menu-toggle{display:block}
  .header-actions{margin-left:auto}
  .header-actions .icon-btn{display:none}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .page-hero{padding:130px 0 0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-meta{margin-top:44px;grid-template-columns:repeat(3,1fr);gap:20px}
  .mosaic-main,.mosaic-side,.mosaic-list,.mosaic-note{grid-column:span 12}
  .mosaic-main,.mosaic-main img{min-height:340px}
  .split{grid-template-columns:1fr;gap:36px}
  .path-band{grid-template-columns:1fr}
  .path-item{border-right:0;border-bottom:1px solid var(--line);padding:26px 0}
  .path-item:last-child{border-bottom:0}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .cta-band{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  body{font-size:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .hero-meta{grid-template-columns:1fr 1fr;gap:18px 16px}
  .mosaic-side{grid-template-columns:1fr}
  .mosaic-main,.mosaic-main img{min-height:280px}
  .mosaic-overlay{padding:22px 20px}
  .mosaic-overlay h3{font-size:19px}
  .mosaic-list{padding:22px 18px 4px}
  .mosaic-note{padding:26px 20px}
  .faq-q{font-size:16px;padding:20px 2px}
  .faq-a-inner{padding:0 2px 22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}