/* roulang page: index */
:root{
  --paper:#F7F5F0;
  --paper-2:#EFEBE3;
  --ink:#10201C;
  --ink-2:#5B6A65;
  --line:#DCD7CC;
  --primary:#0E2E27;
  --accent:#C7F04A;
  --clay:#D2603A;
  --on-dark:#EEF3EF;
  --radius-card:6px;
  --radius-pill:999px;
  --radius-field:4px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:280ms;
  --shadow-hover:0 12px 32px rgba(14,46,39,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 40px;}}
.section{padding:64px 0;}
@media (min-width:768px){.section{padding:88px 0;}}
@media (min-width:1024px){.section{padding:120px 0;}}
.section-dark{background:var(--primary);color:var(--on-dark);}
.section-alt{background:var(--paper-2);}
.rule{height:1px;background:var(--line);width:100%;}
.on-dark-rule{height:1px;background:rgba(255,255,255,.12);width:100%;}

/* ---------- 通用文本与组件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;color:var(--ink-2);text-transform:uppercase;
}
.eyebrow::before{content:"";width:6px;height:6px;background:var(--accent);display:block;}
.section-dark .eyebrow{color:rgba(238,243,239,.7);}
.h2{
  font-size:1.75rem;font-weight:700;line-height:1.25;letter-spacing:-.01em;
}
@media (min-width:768px){.h2{font-size:2.1rem;}}
.section-title{position:relative;padding-top:22px;}
.section-title::before{content:"";position:absolute;top:0;left:0;width:24px;height:1px;background:var(--accent);}
.section-head{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;}
.lead{color:var(--ink-2);font-size:1rem;line-height:1.85;max-width:720px;}
.section-dark .lead{color:rgba(238,243,239,.76);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);
  font-size:.9375rem;font-weight:600;
  padding:13px 26px;line-height:1;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:var(--on-dark);border:1px solid var(--primary);}
.btn-primary:hover{background:var(--accent);color:var(--primary);border-color:var(--accent);}
.btn-outline{background:transparent;color:var(--primary);border:1px solid var(--primary);}
.btn-outline:hover{background:var(--paper-2);}
.btn-accent{background:var(--accent);color:var(--primary);border:1px solid var(--accent);}
.btn-accent:hover{background:var(--primary);color:var(--accent);border-color:var(--primary);}
.btn-sm{padding:10px 20px;font-size:.875rem;}
.btn:focus-visible,.link-more:focus-visible,.nav-link:focus-visible,.foot-link:focus-visible,
.nav-toggle:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.9375rem;font-weight:600;color:var(--primary);
  border-bottom:1px solid var(--line);
  padding-bottom:2px;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),gap var(--dur) var(--ease);
}
.link-more:hover{border-color:var(--accent);gap:10px;}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.06em;
  padding:3px 11px;border-radius:var(--radius-pill);
  border:1px solid var(--line);color:var(--ink-2);background:var(--paper);
}
.tag-clay{color:var(--clay);border-color:rgba(210,96,58,.35);background:rgba(210,96,58,.06);}
.tag-accent{color:var(--primary);border-color:rgba(14,46,39,.2);background:rgba(199,240,74,.28);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),backdrop-filter var(--dur) var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(247,245,240,.92);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.01em;}
.brand-mark{width:10px;height:10px;background:var(--accent);display:block;}
.brand-name{font-size:1.0625rem;color:var(--ink);}
.main-nav{display:none;align-items:center;gap:6px;}
@media (min-width:1024px){.main-nav{display:flex;}}
.nav-link{
  position:relative;
  font-size:.9375rem;color:var(--ink-2);
  padding:8px 14px;border-radius:var(--radius-pill);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:1.5px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);font-weight:600;background:var(--paper-2);}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.header-cta{display:none;}
@media (min-width:640px){.header-cta{display:inline-flex;}}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;padding:0 9px;
  border:1px solid var(--line);border-radius:var(--radius-pill);background:var(--paper);
}
@media (min-width:1024px){.nav-toggle{display:none;}}
.nav-toggle span{display:block;height:1.5px;background:var(--ink);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}
.mobile-drawer{
  display:none;
  background:var(--paper);
  border-top:1px solid var(--line);
  padding:24px 20px 32px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a.m-drawer-link{
  display:block;font-size:1.5rem;font-weight:600;color:var(--ink);
  padding:14px 0;border-bottom:1px solid var(--line);line-height:1.4;
}
.mobile-drawer a.m-drawer-link.active{color:var(--primary);padding-left:16px;position:relative;}
.mobile-drawer a.m-drawer-link.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:8px;height:8px;background:var(--accent);
}
.drawer-foot{margin-top:24px;color:var(--ink-2);font-size:.9375rem;line-height:1.9;}

/* ---------- Hero ---------- */
.hero{position:relative;padding-top:112px;padding-bottom:56px;}
@media (min-width:1024px){.hero{padding-top:150px;padding-bottom:96px;}}
.hero-grid{display:grid;gap:40px;}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:6fr 6fr;gap:56px;align-items:center;}
}
.hero-title{
  font-size:clamp(2.5rem,6vw,5rem);
  font-weight:900;line-height:1.06;letter-spacing:-.02em;
  margin-top:20px;
}
.hero-sub{
  margin-top:22px;font-size:1.0625rem;line-height:1.85;color:var(--ink-2);max-width:520px;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:34px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:0;margin-top:46px;border-top:1px solid var(--line);
}
.hero-stat{flex:1 1 auto;min-width:140px;padding:20px 24px 0 0;}
.hero-stat + .hero-stat{padding-left:24px;border-left:1px solid var(--line);}
.hero-stat dt{font-size:12px;letter-spacing:.14em;color:var(--ink-2);}
.hero-stat dd{margin:6px 0 0;font-size:1.5rem;font-weight:800;letter-spacing:-.01em;}
.hero-media{position:relative;border-radius:var(--radius-card);overflow:hidden;background:var(--paper-2);}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;background:rgba(14,46,39,.46);
}
.hero-media-caption{
  position:absolute;left:24px;right:24px;bottom:22px;z-index:2;color:var(--on-dark);
  font-size:.875rem;line-height:1.7;
}
.hero-media-caption strong{display:block;font-size:1.125rem;font-weight:700;margin-bottom:4px;}

/* ---------- 卖点编号行式 ---------- */
.points{margin-top:36px;border-top:1px solid var(--line);}
.point-row{
  display:grid;grid-template-columns:64px 1fr;gap:20px;
  padding:30px 0;border-bottom:1px solid var(--line);
  transition:transform var(--dur) var(--ease);
}
@media (min-width:768px){.point-row{grid-template-columns:120px 1fr;gap:36px;padding:38px 0;}}
.point-row:hover{transform:translateX(4px);}
.point-num{
  font-size:1.5rem;font-weight:800;color:var(--line);letter-spacing:-.02em;
  transition:color var(--dur) var(--ease);
}
@media (min-width:768px){.point-num{font-size:2rem;}}
.point-row:hover .point-num{color:var(--accent);}
.point-body h3{font-size:1.1875rem;font-weight:700;}
.point-body p{margin-top:10px;color:var(--ink-2);max-width:680px;}

/* ---------- 场景图文交错 ---------- */
.scene{
  display:grid;gap:28px;align-items:center;
  padding:48px 0;border-bottom:1px solid var(--line);
}
.scene:last-child{border-bottom:0;}
@media (min-width:1024px){
  .scene{grid-template-columns:1fr 1fr;gap:64px;padding:72px 0;}
  .scene.flip .scene-media{order:2;}
  .scene.flip .scene-text{order:1;}
}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);}
.scene-text h3{font-size:1.375rem;font-weight:700;margin-top:16px;letter-spacing:-.01em;}
.scene-text p{margin-top:14px;color:var(--ink-2);max-width:520px;}
.scene-text .link-more{margin-top:22px;}

/* ---------- 资讯列表 ---------- */
.post-grid{display:grid;gap:24px;margin-top:40px;grid-template-columns:1fr;}
@media (min-width:640px){.post-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-hover);}
.post-card-body{padding:24px 24px 26px;}
.post-thumb{background:var(--paper-2);}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.post-card h3{
  font-size:1.0625rem;font-weight:700;line-height:1.5;margin-top:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover h3{text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:4px;}
.post-card p{
  margin-top:10px;color:var(--ink-2);font-size:.9375rem;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:20px;padding-top:16px;border-top:1px solid var(--line);
  font-size:.8125rem;color:var(--ink-2);
}
.empty-state{
  margin-top:40px;background:var(--paper-2);
  border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;
}
.empty-state p{color:var(--ink-2);font-size:1rem;}
.empty-state .btn{margin-top:22px;}

/* ---------- 社会认同 ---------- */
.trust-strip{
  display:flex;flex-wrap:wrap;gap:12px 40px;
  padding:24px 0;font-size:.875rem;color:var(--ink-2);letter-spacing:.04em;
}
.trust-strip span{position:relative;padding-left:16px;}
.trust-strip span::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:5px;height:5px;background:var(--accent);}
.quote-list{display:grid;gap:36px;margin-top:40px;}
@media (min-width:1024px){.quote-list{grid-template-columns:repeat(3,1fr);gap:48px;}}
.quote-item{border-top:1px solid var(--line);padding-top:26px;}
.quote-mark{font-size:2.5rem;line-height:1;color:var(--accent);font-weight:800;}
.quote-item p{margin-top:12px;font-size:1.0625rem;line-height:1.8;}
.quote-person{margin-top:16px;font-size:.875rem;color:var(--ink-2);}

/* ---------- FAQ ---------- */
.faq-list{margin-top:36px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 0;font-size:1.0625rem;font-weight:600;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;width:20px;height:20px;position:relative;
  transition:transform var(--dur) var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);transition:background var(--dur) var(--ease);
}
.faq-icon::before{left:0;right:0;top:9px;height:1.5px;}
.faq-icon::after{top:0;bottom:0;left:9px;width:1.5px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--primary);}
.faq-answer{padding:0 0 26px;max-width:720px;color:var(--ink-2);line-height:1.9;}

/* ---------- CTA 带 ---------- */
.cta-band{padding:72px 0;}
@media (min-width:1024px){.cta-band{padding:104px 0;}}
.cta-inner{display:grid;gap:28px;}
@media (min-width:1024px){.cta-inner{grid-template-columns:7fr 4fr;align-items:end;gap:56px;}}
.cta-title{font-size:clamp(1.75rem,3.4vw,2.75rem);font-weight:800;line-height:1.18;letter-spacing:-.02em;margin-top:18px;}
.cta-sub{margin-top:18px;color:rgba(238,243,239,.76);max-width:560px;line-height:1.85;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:var(--on-dark);padding-top:72px;}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.2fr;gap:48px;}}
.footer-title{font-size:12px;letter-spacing:.16em;color:rgba(238,243,239,.6);margin-bottom:18px;}
.footer-brand{font-size:1.0625rem;font-weight:800;display:inline-flex;align-items:center;gap:10px;}
.footer-brand .brand-mark{width:10px;height:10px;background:var(--accent);}
.footer-desc{margin-top:16px;color:rgba(238,243,239,.72);font-size:.9375rem;line-height:1.9;max-width:380px;}
.foot-link{display:block;padding:7px 0;color:rgba(238,243,239,.85);font-size:.9375rem;transition:color var(--dur) var(--ease);}
.foot-link:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  margin-top:56px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(238,243,239,.6);
}

/* ---------- 固定转化条 ---------- */
.convert-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:10px 20px calc(10px + env(safe-area-inset-bottom));
  background:var(--paper);border-top:1px solid var(--line);
  box-shadow:0 -10px 28px rgba(14,46,39,.10);
  transform:translateY(120%);opacity:0;
  transition:transform 320ms var(--ease),opacity 320ms var(--ease);
}
@media (min-width:1024px){.convert-bar{padding-left:40px;padding-right:40px;}}
.convert-bar.is-show{transform:none;opacity:1;}
.convert-text{font-size:.9375rem;color:var(--ink-2);}
.convert-text strong{color:var(--ink);font-weight:700;}
@media (max-width:767px){
  .convert-bar{transform:none;opacity:1;}
}
.convert-bar.is-hide{transform:translateY(120%);opacity:0;}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --paper:#F7F5F0;
  --paper-2:#EFEBE3;
  --ink:#10201C;
  --ink-2:#5B6A65;
  --line:#DCD7CC;
  --primary:#0E2E27;
  --accent:#C7F04A;
  --clay:#D2603A;
  --on-dark:#EEF3EF;
  --radius:6px;
  --pill:999px;
  --shadow-hover:0 12px 32px rgba(14,46,39,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",ui-sans-serif,system-ui,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 40px}}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;background:transparent;border-bottom:1px solid transparent;transition:background .28s var(--ease),border-color .28s var(--ease),backdrop-filter .28s var(--ease)}
.site-header.is-stuck{background:rgba(247,245,240,.93);backdrop-filter:blur(10px);border-bottom-color:var(--line)}
.nav-wrap{display:flex;align-items:center;gap:22px;height:72px}
@media(min-width:1024px){.nav-wrap{height:80px;gap:30px}}
.logo{display:inline-flex;align-items:center;gap:9px;font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.logo-dot{width:8px;height:8px;background:var(--accent);flex:0 0 auto}
.main-nav{display:none}
@media(min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
}
.nav-link{position:relative;font-size:15px;color:var(--ink);padding:6px 2px;transition:color .22s var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;bottom:-2px;height:1.5px;width:0;background:var(--accent);transition:width .28s var(--ease)}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.nav-link.active{font-weight:700}
.nav-cta{display:none}
@media(min-width:1024px){.nav-cta{display:inline-flex;margin-left:8px}}
.nav-toggle{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;margin-left:auto;padding:8px 10px}
.nav-toggle span{display:block;width:22px;height:1.5px;background:var(--ink);transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle.is-open span:first-child{transform:translateY(3.25px) rotate(45deg)}
.nav-toggle.is-open span:last-child{transform:translateY(-3.25px) rotate(-45deg)}
@media(min-width:1024px){.nav-toggle{display:none}}
.drawer{position:fixed;inset:0;z-index:55;background:var(--paper);padding:96px 24px 40px;display:flex;flex-direction:column;transform:translateY(-100%);transition:transform .38s var(--ease);overflow-y:auto}
.drawer.open{transform:translateY(0)}
.drawer a.drawer-link{display:block;font-size:1.5rem;font-weight:700;padding:16px 0;border-bottom:1px solid var(--line)}
.drawer a.drawer-link:hover{color:var(--primary)}
.drawer-foot{margin-top:auto;padding-top:32px;font-size:14px;color:var(--ink-2);line-height:2}
body.drawer-lock{overflow:hidden}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:var(--pill);padding:12px 24px;font-size:15px;font-weight:600;line-height:1;transition:background .26s var(--ease),color .26s var(--ease),border-color .26s var(--ease),transform .26s var(--ease);white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--accent);color:var(--primary)}
.btn-outline{border:1px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--paper-2)}
.btn-outline .arrow{transition:transform .26s var(--ease)}
.btn-outline:hover .arrow{transform:translateX(4px)}
.btn-text{border-bottom:1px solid var(--primary);border-radius:0;padding:2px 0;font-weight:600;color:var(--primary)}
.btn-text:hover{border-bottom-color:var(--accent)}
.btn-sm{padding:9px 18px;font-size:14px}

/* ---------- 页面节奏 ---------- */
.page-top{padding-top:104px}
@media(min-width:1024px){.page-top{padding-top:148px}}
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:112px 0}}
.sec-line{width:24px;height:1px;background:var(--accent);display:block;margin-bottom:18px}
.sec-title{font-size:1.75rem;font-weight:700;letter-spacing:-.01em;line-height:1.3}
@media(min-width:1024px){.sec-title{font-size:2.15rem}}
.sec-sub{color:var(--ink-2);font-size:15px;margin-top:12px;max-width:660px}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);padding-top:28px}
.crumbs a{color:var(--ink-2);transition:color .22s var(--ease)}
.crumbs a:hover{color:var(--primary);text-decoration:underline}
.crumbs .sep{color:#c9c2b4}
.crumbs .current{color:var(--ink-2);opacity:.85;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-head{max-width:820px;margin-top:34px}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.16em;text-transform:none;padding:5px 13px;border-radius:var(--pill);border:1px solid var(--line);background:var(--paper-2);color:var(--ink-2)}
.tag::before{content:"";width:6px;height:6px;background:var(--accent);border-radius:50%}
.article-title{font-size:clamp(1.9rem,3.6vw,3rem);font-weight:800;line-height:1.2;letter-spacing:-.02em;margin-top:22px;color:var(--ink)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px;font-size:13.5px;color:var(--ink-2)}
.article-meta .dot{width:3px;height:3px;background:#c9c2b4;border-radius:50%}
.article-cover{margin-top:44px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--paper-2);aspect-ratio:16/9}
.article-cover img{width:100%;height:100%;object-fit:cover}

/* ---------- 正文 ---------- */
.article-main{max-width:760px;margin-top:52px}
.article-body{font-size:1.0625rem;line-height:1.9;color:#1b2b26}
.article-body p{margin:0 0 1.4em}
.article-body h2{position:relative;font-size:1.55rem;font-weight:700;line-height:1.4;margin:2.4em 0 .9em;padding-top:22px}
.article-body h2::before{content:"";position:absolute;top:0;left:0;width:24px;height:1px;background:var(--accent)}
.article-body h3{font-size:1.2rem;font-weight:700;margin:1.9em 0 .7em}
.article-body blockquote{margin:1.8em 0;padding:18px 22px;background:var(--paper-2);border-left:3px solid var(--accent);color:var(--ink-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul{margin:0 0 1.4em}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.6em}
.article-body ul li::before{content:"";position:absolute;left:0;top:.75em;width:7px;height:7px;background:var(--accent)}
.article-body ol{margin:0 0 1.4em;counter-reset:num}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:.6em;counter-increment:num}
.article-body ol li::before{content:counter(num,decimal-leading-zero);position:absolute;left:0;top:0;color:var(--clay);font-size:.85rem;font-weight:700;font-variant-numeric:tabular-nums}
.article-body img{border-radius:var(--radius);margin:1.8em 0;width:100%;height:auto}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13px;color:var(--ink-2);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:.95rem}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left;vertical-align:top}
.article-body th{color:var(--ink-2);font-weight:600}
.article-body a{color:var(--primary);border-bottom:1px solid var(--primary);transition:border-color .22s var(--ease)}
.article-body a:hover{border-bottom-color:var(--accent)}
.article-body strong{font-weight:700}
.empty-state{background:var(--paper-2);border:1px dashed var(--line);border-radius:var(--radius);padding:48px 28px;text-align:center}
.empty-title{font-size:1.15rem;font-weight:700}
.empty-desc{color:var(--ink-2);font-size:14.5px;margin-top:10px}
.empty-state .btn{margin-top:24px}

/* ---------- 文末区 ---------- */
.article-foot{margin-top:64px;border-top:1px solid var(--line);padding-top:28px}
.foot-tags{display:flex;flex-wrap:wrap;gap:10px}
.foot-more{display:flex;flex-wrap:wrap;gap:22px;align-items:center;margin-top:24px}

/* ---------- 相关推荐 ---------- */
.rel-grid{display:grid;grid-template-columns:1fr;gap:24px;margin-top:36px}
@media(min-width:640px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{display:flex;gap:16px;padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease)}
.rel-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-hover)}
.rel-thumb{width:104px;flex:0 0 104px;aspect-ratio:16/10;border-radius:var(--radius);overflow:hidden;background:var(--paper-2)}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-body{min-width:0}
.rel-cat{font-size:11.5px;letter-spacing:.14em;color:var(--clay)}
.rel-title{font-size:1.05rem;font-weight:700;line-height:1.45;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-date{font-size:12.5px;color:var(--ink-2);margin-top:10px}

/* ---------- 深色 CTA 带 ---------- */
.cta-band{background:var(--primary);color:var(--on-dark);padding:80px 0}
@media(min-width:1024px){.cta-band{padding:112px 0}}
.cta-band h2{font-size:clamp(1.75rem,3.2vw,2.5rem);font-weight:800;line-height:1.2;letter-spacing:-.02em;max-width:720px}
.cta-band p{color:rgba(238,243,239,.78);margin-top:18px;max-width:620px;font-size:15.5px}
.cta-band .btn{margin-top:32px}
.cta-band .btn-primary{background:var(--accent);color:var(--primary)}
.cta-band .btn-primary:hover{background:#fff;color:var(--primary)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:var(--on-dark);padding:72px 0 110px}
@media(min-width:1024px){.site-footer{padding:88px 0 120px}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}}
.footer-logo{display:inline-flex;align-items:center;gap:9px;font-size:18px;font-weight:800}
.footer-logo .logo-dot{background:var(--accent)}
.footer-text{color:rgba(238,243,239,.72);font-size:14px;line-height:1.9;margin-top:16px;max-width:360px}
.footer-h{font-size:13px;letter-spacing:.16em;color:rgba(238,243,239,.55);margin-bottom:18px}
.footer-list li{margin-bottom:12px}
.footer-list a{font-size:14.5px;color:rgba(238,243,239,.85);transition:color .22s var(--ease)}
.footer-list a:hover{color:var(--accent);text-decoration:underline}
.footer-bottom{margin-top:56px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(238,243,239,.6)}

/* ---------- 固定转化条 ---------- */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:65;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:var(--paper);border-top:1px solid var(--line);box-shadow:0 -10px 28px rgba(14,46,39,.08);transform:translateY(120%);transition:transform .32s var(--ease)}
.sticky-bar.show{transform:translateY(0)}
.sticky-bar.is-hidden{transform:translateY(130%)}
.sticky-text{font-size:14px;color:var(--ink);font-weight:600}
@media(min-width:1024px){.sticky-bar{padding:12px 40px}}
@media(max-width:520px){.sticky-text{font-size:13px}}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --paper:#F7F5F0;
  --paper-2:#EFEBE3;
  --ink:#10201C;
  --ink-2:#5B6A65;
  --line:#DCD7CC;
  --primary:#0E2E27;
  --accent:#C7F04A;
  --clay:#D2603A;
  --on-dark:#EEF3EF;
  --radius:6px;
  --radius-pill:999px;
  --radius-input:4px;
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-hover:0 12px 32px rgba(14,46,39,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  padding-bottom:96px;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}
::selection{background:var(--accent);color:var(--primary)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 40px}}

/* ---------- 通用排版 ---------- */
.h1{font-size:clamp(1.9rem,3.6vw,3rem);font-weight:800;line-height:1.14;letter-spacing:-.02em;margin:0}
.h2{font-size:clamp(1.5rem,2.4vw,2.125rem);font-weight:700;line-height:1.24;letter-spacing:-.01em;margin:0}
.h3{font-size:1.15rem;font-weight:700;line-height:1.4;margin:0}
.lead{color:var(--ink-2);font-size:1.0625rem;line-height:1.85;margin:0}
.small{font-size:.875rem;color:var(--ink-2)}
.tabular{font-variant-numeric:tabular-nums}
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:112px 0}}
.section-tight{padding:48px 0}
@media (min-width:1024px){.section-tight{padding:72px 0}}
.section-title{position:relative;padding-top:24px}
.section-title::before{content:"";position:absolute;top:0;left:0;width:24px;height:1px;background:var(--accent)}
.rule{height:1px;background:var(--line);border:0;margin:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--ink-2);text-transform:uppercase}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.tag{display:inline-flex;align-items:center;font-size:12px;letter-spacing:.06em;color:var(--primary);background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-pill);padding:4px 12px}
.tag-clay{color:var(--clay);border-color:rgba(210,96,58,.35);background:rgba(210,96,58,.06)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-pill);padding:12px 24px;font-size:.95rem;font-weight:600;border:1px solid transparent;transition:background-color 260ms var(--ease),color 260ms var(--ease),border-color 260ms var(--ease),transform 260ms var(--ease)}
.btn-primary{background:var(--primary);color:var(--on-dark)}
.btn-primary:hover{background:var(--accent);color:var(--primary)}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-ghost:hover{background:var(--paper-2)}
.btn-ghost:hover .btn-arrow{transform:translateX(3px)}
.btn-arrow{transition:transform 260ms var(--ease)}
.btn-text{font-size:.95rem;font-weight:600;color:var(--primary);border-bottom:1px solid var(--primary);padding-bottom:2px;transition:border-color 260ms var(--ease),color 260ms var(--ease)}
.btn-text:hover{border-color:var(--accent);color:var(--ink)}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:70;background:transparent;transition:background-color 300ms var(--ease),border-color 300ms var(--ease),backdrop-filter 300ms var(--ease)}
.site-header.is-scrolled{background:rgba(247,245,240,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.0625rem;letter-spacing:-.01em}
.brand-mark{width:8px;height:8px;background:var(--accent);display:block}
.brand-sub{display:block;font-size:11px;letter-spacing:.18em;color:var(--ink-2);font-weight:500}
.main-nav{display:none}
@media (min-width:1024px){.main-nav{display:flex;align-items:center;gap:28px}}
.nav-link{position:relative;font-size:.95rem;color:var(--ink-2);padding:6px 0;transition:color 240ms var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1.5px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform 260ms var(--ease)}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.header-cta{display:none}
@media (min-width:1024px){.header-cta{display:inline-flex}}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--radius-pill);background:var(--paper)}
@media (min-width:1024px){.nav-toggle{display:none}}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;background:var(--ink)}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.mobile-drawer{position:fixed;inset:0;z-index:80;background:var(--paper);padding:24px 20px 40px;display:flex;flex-direction:column;transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity 260ms var(--ease),transform 260ms var(--ease)}
.mobile-drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:48px}
.drawer-close{width:42px;height:42px;border:1px solid var(--line);border-radius:var(--radius-pill);display:inline-flex;align-items:center;justify-content:center;font-size:1.25rem;line-height:1}
.drawer-nav{margin-top:32px;display:flex;flex-direction:column}
.drawer-nav a{font-size:1.5rem;font-weight:700;padding:16px 0;border-bottom:1px solid var(--line);letter-spacing:-.01em}
.drawer-nav a.active{color:var(--primary)}
.drawer-nav a.active::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-right:10px;vertical-align:middle}
.drawer-foot{margin-top:auto;font-size:.875rem;color:var(--ink-2);line-height:2}

/* ---------- Hero ---------- */
.page-hero{padding:112px 0 0}
@media (min-width:1024px){.page-hero{padding:168px 0 0}}
.hero-grid{display:grid;gap:28px}
@media (min-width:1024px){.hero-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:end}}
.hero-copy{max-width:720px}
.hero-aside{padding-top:4px}
.hero-aside p{margin:0 0 20px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.hero-figure{margin-top:40px}
@media (min-width:1024px){.hero-figure{margin-top:64px}}
.hero-media{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:16/9;background:var(--paper-2)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,46,39,.18) 0%,rgba(14,46,39,.52) 100%)}
.hero-media-caption{position:absolute;left:24px;right:24px;bottom:20px;z-index:2;color:var(--on-dark);font-size:.875rem;letter-spacing:.02em}
@media (min-width:1024px){.hero-media-caption{left:32px;right:32px;bottom:28px;font-size:.9375rem}}
.stagger>*{opacity:0;transform:translateY(12px);animation:riseIn 700ms var(--ease) forwards}
.stagger>*:nth-child(1){animation-delay:.05s}
.stagger>*:nth-child(2){animation-delay:.13s}
.stagger>*:nth-child(3){animation-delay:.21s}
.stagger>*:nth-child(4){animation-delay:.29s}
@keyframes riseIn{to{opacity:1;transform:none}}

/* ---------- 数据条 ---------- */
.stats{display:grid;gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media (min-width:768px){.stats{grid-template-columns:repeat(3,minmax(0,1fr))}}
.stat{padding:24px 0;border-bottom:1px solid var(--line)}
.stat:last-child{border-bottom:0}
@media (min-width:768px){
  .stat{padding:28px 28px 28px 0;border-bottom:0;border-right:1px solid var(--line)}
  .stat:last-child{border-right:0}
}
.stat-num{font-size:1.75rem;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.2}
.stat-num em{font-style:normal;font-size:.875rem;font-weight:600;color:var(--ink-2);margin-left:6px;letter-spacing:0}
.stat-label{font-size:.875rem;color:var(--ink-2);margin-top:4px}

/* ---------- 编号行式列表 ---------- */
.row-list{border-top:1px solid var(--line)}
.row-item{display:grid;grid-template-columns:auto 1fr;gap:20px;padding:28px 0;border-bottom:1px solid var(--line);transition:transform 260ms var(--ease)}
@media (min-width:768px){.row-item{gap:40px;padding:34px 0}}
.row-item:hover{transform:translateX(4px)}
.row-item:hover .row-title{text-decoration-color:var(--accent)}
.row-num{font-size:.875rem;font-weight:700;letter-spacing:.1em;color:var(--ink-2);font-variant-numeric:tabular-nums;padding-top:4px}
.row-body{max-width:760px}
.row-title{font-size:1.15rem;font-weight:700;margin:0 0 8px;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:6px;text-decoration-thickness:2px;transition:text-decoration-color 260ms var(--ease)}
.row-item p{margin:0;color:var(--ink-2);font-size:.9688rem;line-height:1.85}

/* ---------- 图文两列列表 ---------- */
.doc-list{margin-top:12px}
.doc-item{display:grid;gap:20px;padding:32px 0;border-top:1px solid var(--line);transition:transform 280ms var(--ease)}
.doc-item:last-child{border-bottom:1px solid var(--line)}
@media (min-width:768px){.doc-item{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:center;padding:40px 0}}
.doc-item:hover{transform:translateY(-4px)}
.doc-item:hover .doc-media img{transform:scale(1.02)}
.doc-item:hover .doc-title{text-decoration-color:var(--accent)}
.doc-media{border-radius:var(--radius);overflow:hidden;aspect-ratio:16/10;background:var(--paper-2)}
.doc-media img{width:100%;height:100%;object-fit:cover;transition:transform 620ms var(--ease)}
.doc-title{display:inline-block;font-size:1.25rem;font-weight:700;margin:12px 0 10px;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:6px;text-decoration-thickness:2px;transition:text-decoration-color 260ms var(--ease)}
.doc-body p{margin:0 0 14px;color:var(--ink-2);font-size:.9688rem;line-height:1.85}

/* ---------- 流程 ---------- */
.steps{display:grid;gap:0;border-top:1px solid var(--line)}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,minmax(0,1fr))}}
.step{padding:28px 0;border-bottom:1px solid var(--line)}
@media (min-width:768px){
  .step{padding:32px 28px 32px 0;border-right:1px solid var(--line)}
  .step:nth-child(2n){border-right:0;padding-right:0;padding-left:28px}
}
@media (min-width:1024px){
  .step:nth-child(2n){border-right:1px solid var(--line);padding-left:0;padding-right:28px}
  .step:nth-child(4n){border-right:0;padding-right:0}
  .step{padding-left:28px}
  .step:first-child{padding-left:0}
}
.step-num{font-size:.8125rem;font-weight:700;letter-spacing:.14em;color:var(--ink-2);font-variant-numeric:tabular-nums}
.step h3{font-size:1.0625rem;font-weight:700;margin:12px 0 8px}
.step p{margin:0;font-size:.9375rem;color:var(--ink-2);line-height:1.8}

/* ---------- 引用 ---------- */
.quote-band{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:48px 0}
@media (min-width:1024px){.quote-band{padding:72px 0}}
.quote-mark{font-size:3rem;line-height:1;color:var(--accent);font-weight:800;letter-spacing:-.05em}
.quote-text{font-size:1.25rem;font-weight:600;line-height:1.7;margin:8px 0 16px;max-width:760px}
@media (min-width:1024px){.quote-text{font-size:1.5rem}}
.quote-person{font-size:.875rem;color:var(--ink-2);letter-spacing:.02em}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:22px 0;cursor:pointer;font-weight:600;font-size:1.0625rem;list-style:none;transition:color 240ms var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-mark{flex:none;width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;font-size:1.25rem;line-height:1;color:var(--ink-2);transition:transform 260ms var(--ease),color 260ms var(--ease)}
.faq-item[open] .faq-mark{transform:rotate(45deg);color:var(--primary)}
.faq-answer{max-width:720px;padding:0 0 24px;color:var(--ink-2);font-size:.9688rem;line-height:1.9}

/* ---------- CTA ---------- */
.cta-band{background:var(--primary);color:var(--on-dark);padding:64px 0}
@media (min-width:1024px){.cta-band{padding:104px 0}}
.cta-inner{display:grid;gap:28px}
@media (min-width:1024px){.cta-inner{grid-template-columns:minmax(0,7fr) minmax(0,5fr);align-items:center;gap:56px}}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.5rem);font-weight:800;line-height:1.2;letter-spacing:-.02em;margin:0 0 16px}
.cta-band p{margin:0;color:rgba(238,243,239,.78);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:var(--on-dark);padding:64px 0 24px;border-top:1px solid rgba(255,255,255,.12)}
.footer-grid{display:grid;gap:36px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2.2fr 1.2fr 1.2fr 1.4fr;gap:48px}}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.0625rem;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--accent)}
.footer-text{color:rgba(238,243,239,.72);font-size:.9375rem;line-height:1.9;max-width:360px;margin:0}
.footer-title{font-size:.8125rem;letter-spacing:.16em;color:rgba(238,243,239,.55);margin:0 0 16px}
.footer-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-list a,.footer-list span{font-size:.9375rem;color:rgba(238,243,239,.85);transition:color 240ms var(--ease)}
.footer-list a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(238,243,239,.6)}

/* ---------- 固定转化条 ---------- */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:75;height:64px;background:var(--paper);border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(14,46,39,.08);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 20px;padding-bottom:env(safe-area-inset-bottom);opacity:1;transform:none;transition:opacity 300ms var(--ease),transform 300ms var(--ease)}
@media (min-width:1024px){.sticky-bar{padding:0 40px;opacity:0;pointer-events:none;transform:translateY(100%)}}
.sticky-bar.is-visible{opacity:1;pointer-events:auto;transform:none}
.sticky-bar.is-hidden{opacity:0!important;pointer-events:none!important;transform:translateY(100%)!important}
.sticky-text{font-size:.9375rem;color:var(--ink-2)}
.sticky-text strong{color:var(--ink);font-weight:700}

/* ---------- 滚动淡入 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 640ms var(--ease),transform 640ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}

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

/* roulang page: category2 */
:root{
  --paper:#F7F5F0;
  --paper-2:#EFEBE3;
  --ink:#10201C;
  --ink-2:#5B6A65;
  --line:#DCD7CC;
  --primary:#0E2E27;
  --accent:#C7F04A;
  --clay:#D2603A;
  --on-dark:#EEF3EF;
  --dark-line:rgba(255,255,255,.12);
  --radius:6px;
  --radius-pill:999px;
  --shadow-hover:0 12px 32px rgba(14,46,39,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:280ms;
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",ui-sans-serif,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
.page-body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
@media(max-width:767px){.page-body{padding-bottom:88px}}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.tnum{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 40px}}
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:112px 0}}
.h2{font-size:clamp(1.5rem,2.6vw,2.15rem);font-weight:700;line-height:1.2;letter-spacing:-.01em;margin:0 0 16px;color:var(--ink)}
.h2::before{content:"";display:block;width:24px;height:1px;background:var(--accent);margin-bottom:20px}
.h3{font-size:1.125rem;font-weight:700;line-height:1.35;margin:0 0 10px;color:var(--ink)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--ink-2);text-transform:uppercase;margin:0 0 18px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.eyebrow-dark{color:rgba(238,243,239,.75)}
.lede{font-size:1.0625rem;line-height:1.9;color:var(--ink-2);margin:0}
.muted{color:var(--ink-2)}

/* header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;border-bottom:1px solid transparent;transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),backdrop-filter var(--dur) var(--ease)}
.site-header.is-scrolled{background:rgba(247,245,240,.94);backdrop-filter:blur(12px);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.brand-mark{width:10px;height:10px;background:var(--accent);display:inline-block;flex:0 0 auto}
.main-nav{display:none;align-items:center;gap:4px}
@media(min-width:1024px){.main-nav{display:flex}}
.nav-link{position:relative;padding:9px 14px;font-size:15px;color:var(--ink-2);border-radius:var(--radius-pill);transition:color var(--dur) var(--ease),background var(--dur) var(--ease)}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:1.5px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease)}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink);background:var(--paper-2)}
.nav-link.active::after{transform:scaleX(0)}
.nav-link.active::before{content:"";position:absolute;left:4px;top:50%;transform:translateY(-50%);width:4px;height:4px;border-radius:50%;background:var(--accent)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--radius-pill);background:transparent;color:var(--ink);cursor:pointer;transition:border-color var(--dur) var(--ease)}
.nav-toggle:hover{border-color:var(--primary)}
.nav-toggle:focus-visible,.btn:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media(min-width:1024px){.nav-toggle{display:none}}
.mobile-drawer{position:fixed;top:76px;left:0;right:0;bottom:0;background:var(--paper);z-index:70;display:none;flex-direction:column;gap:6px;padding:28px 20px 40px;border-top:1px solid var(--line)}
.mobile-drawer.is-open{display:flex}
.mobile-drawer .nav-link{font-size:1.5rem;padding:14px 4px;border-radius:0;border-bottom:1px solid var(--line);color:var(--ink)}
.mobile-drawer .nav-link::after{display:none}
.mobile-drawer .nav-link.active{background:transparent;padding-left:20px}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);color:var(--ink-2);font-size:14px;line-height:1.9}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-pill);padding:14px 28px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),border-color var(--dur) var(--ease);white-space:nowrap}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-primary{background:var(--primary);color:var(--on-dark)}
.btn-primary:hover{background:var(--accent);color:var(--primary)}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-ghost:hover{background:var(--paper-2);transform:translateX(2px)}
.btn-accent{background:var(--accent);color:var(--primary)}
.btn-accent:hover{background:var(--on-dark);color:var(--primary)}
.btn-text{padding:14px 0;background:transparent;color:var(--primary);border-radius:0;border-bottom:1px solid var(--primary)}
.btn-text:hover{border-bottom-color:var(--accent)}
.btn-text .arrow{transition:transform var(--dur) var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}

/* hero */
.hero{padding:140px 0 72px}
@media(min-width:1024px){.hero{padding:172px 0 104px}}
.hero-grid{display:grid;gap:44px}
@media(min-width:1024px){.hero-grid{grid-template-columns:5fr 7fr;gap:80px;align-items:start}}
.hero-title{font-size:clamp(2rem,4.4vw,3.1rem);font-weight:800;line-height:1.12;letter-spacing:-.02em;margin:0 0 20px;color:var(--ink);max-width:15em}
.hero-sub{font-size:1.0625rem;line-height:1.8;color:var(--ink-2);margin:0 0 32px;max-width:24em}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px}
.hero-main{padding-top:6px}
@media(min-width:1024px){.hero-main{border-left:1px solid var(--line);padding-left:56px}}
.hero-points{list-style:none;margin:32px 0 0;padding:0;border-top:1px solid var(--line)}
.hero-points li{display:flex;gap:12px;padding:16px 0;border-bottom:1px solid var(--line);font-size:.9375rem;color:var(--ink);line-height:1.7}
.hero-points li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:11px;background:var(--accent)}

/* split list */
.split{display:grid;gap:36px}
@media(min-width:1024px){.split{grid-template-columns:4fr 8fr;gap:80px}}
.split-aside{position:static}
@media(min-width:1024px){.split-aside{position:sticky;top:120px;align-self:start}}
.num-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.num-item{display:grid;grid-template-columns:52px 1fr;gap:16px;padding:26px 0;border-bottom:1px solid var(--line);transition:transform var(--dur) var(--ease)}
@media(min-width:1024px){.num-item{grid-template-columns:72px 1fr;gap:24px;padding:30px 0}}
.num-item:hover{transform:translateX(4px)}
.num{font-size:.9375rem;font-weight:700;color:var(--ink-2);font-variant-numeric:tabular-nums;transition:background var(--dur) var(--ease),color var(--dur) var(--ease);align-self:start;padding:1px 8px;border-radius:4px;display:inline-block;width:max-content}
.num-item:hover .num{background:var(--accent);color:var(--primary)}
.num-item p{margin:0;color:var(--ink-2);font-size:.9375rem;line-height:1.8}
.num-item h3{margin:0 0 8px;font-size:1.0625rem;font-weight:700;color:var(--ink)}

/* bind */
.section-alt{background:var(--paper-2)}
.bind-grid{display:grid;gap:24px}
@media(min-width:1024px){.bind-grid{grid-template-columns:6fr 6fr;gap:32px;align-items:start}}
.bind-feature{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);padding:28px;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease)}
.bind-feature:hover{border-color:var(--primary);box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.bind-tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.08em;color:var(--primary);background:var(--accent);border-radius:var(--radius-pill);padding:4px 12px;margin-bottom:18px}
.bind-feature p{margin:0;color:var(--ink-2);line-height:1.85;font-size:.9375rem}
.bind-side{display:grid;gap:0;border-top:1px solid var(--line)}
.bind-row{padding:26px 0;border-bottom:1px solid var(--line);transition:transform var(--dur) var(--ease),padding var(--dur) var(--ease)}
.bind-row:hover{transform:translateX(4px)}
.bind-row h3{margin:0 0 8px;font-size:1.0625rem;font-weight:700}
.bind-row p{margin:0;color:var(--ink-2);font-size:.9375rem;line-height:1.8}

/* steps */
.steps{display:grid;gap:0;border-top:1px solid var(--line);margin-top:8px}
@media(min-width:768px){.steps{grid-template-columns:repeat(2,1fr);column-gap:48px}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);column-gap:32px}}
.step{padding:28px 0;border-bottom:1px solid var(--line)}
.step-num{font-size:1.5rem;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em;display:block;margin-bottom:12px}
.step-num::after{content:"";display:block;width:24px;height:1px;background:var(--accent);margin-top:12px}
.step h3{margin:0 0 8px;font-size:1.0625rem;font-weight:700}
.step p{margin:0;color:var(--ink-2);font-size:.9375rem;line-height:1.8}

/* stats */
.stats{display:grid;gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media(min-width:768px){.stats{grid-template-columns:repeat(3,1fr)}}
.stat{padding:32px 0;border-bottom:1px solid var(--line)}
@media(min-width:768px){
  .stat{border-bottom:none;border-left:1px solid var(--line);padding:40px 32px}
  .stat:first-child{border-left:none;padding-left:0}
}
.stat-num{font-size:clamp(2rem,4vw,3rem);font-weight:800;letter-spacing:-.03em;line-height:1;margin:0 0 12px;color:var(--ink);font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:6px}
.stat-unit{font-size:1rem;font-weight:700;color:var(--ink-2)}
.stat-label{margin:0;font-size:.9375rem;color:var(--ink-2);line-height:1.75;max-width:22em}

/* faq */
.faq-list{border-top:1px solid var(--line);max-width:920px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;padding:24px 0;font-size:1.0625rem;font-weight:700;color:var(--ink);cursor:pointer;list-style:none;transition:color var(--dur) var(--ease)}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{color:var(--primary)}
.faq-icon{position:relative;flex:0 0 auto;width:16px;height:16px;margin-top:7px;transition:transform var(--dur) var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink-2);transition:background var(--dur) var(--ease)}
.faq-icon::before{left:0;right:0;top:7.5px;height:1.5px}
.faq-icon::after{top:0;bottom:0;left:7.5px;width:1.5px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--accent)}
.faq-a{max-width:720px;padding:0 0 28px;color:var(--ink-2);font-size:1rem;line-height:1.85;margin:0}

/* cta band */
.cta-band{position:relative;background:var(--primary);overflow:hidden;isolation:isolate}
.cta-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.32;z-index:-1}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,46,39,.92),rgba(14,46,39,.86));z-index:-1}
.cta-inner{padding:72px 0}
@media(min-width:1024px){.cta-inner{padding:104px 0}}
.cta-title{font-size:clamp(1.75rem,3.4vw,2.6rem);font-weight:800;letter-spacing:-.02em;line-height:1.18;color:var(--on-dark);margin:0 0 18px;max-width:18em}
.cta-sub{font-size:1.0625rem;line-height:1.85;color:rgba(238,243,239,.78);margin:0 0 32px;max-width:34em}

/* footer */
.site-footer{background:var(--primary);color:var(--on-dark)}
.footer-grid{display:grid;gap:40px;padding:64px 0 44px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:48px}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2.2fr 1fr 1fr 1.3fr;gap:56px}}
.footer-logo{display:inline-block;font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--on-dark);margin-bottom:16px}
.footer-brand p{margin:0 0 12px;font-size:.9375rem;line-height:1.85;color:rgba(238,243,239,.72);max-width:26em}
.quote-person{font-size:.875rem;color:rgba(238,243,239,.6);border-left:2px solid var(--accent);padding-left:12px}
.footer-title{font-size:13px;letter-spacing:.14em;color:rgba(238,243,239,.5);margin:0 0 18px;text-transform:uppercase}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.footer-links a{font-size:.9375rem;color:rgba(238,243,239,.85);transition:color var(--dur) var(--ease)}
.footer-links a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.footer-contact p{margin:0 0 12px;font-size:.9375rem;color:rgba(238,243,239,.72);line-height:1.8}
.footer-contact a{color:var(--on-dark);border-bottom:1px solid var(--dark-line)}
.footer-contact a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.footer-bottom{border-top:1px solid var(--dark-line);padding:22px 0;font-size:13px;color:rgba(238,243,239,.6);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}

/* float bar */
.float-bar{position:fixed;left:0;right:0;bottom:0;z-index:90;background:var(--paper);border-top:1px solid var(--line);box-shadow:0 -8px 28px rgba(14,46,39,.08);transform:translateY(100%);opacity:0;transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);padding-bottom:env(safe-area-inset-bottom)}
.float-bar.is-visible{transform:none;opacity:1}
@media(max-width:767px){.float-bar{transform:none;opacity:1}.float-bar.is-hidden{transform:translateY(100%);opacity:0}}
.float-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;padding-top:8px;padding-bottom:8px}
.float-text{margin:0;font-size:.875rem;line-height:1.5;color:var(--ink-2)}
@media(min-width:768px){.float-text{font-size:.9375rem}}

/* reveal */
@keyframes riseIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.anim{animation:riseIn .7s var(--ease) both}
.anim-1{animation-delay:.05s}
.anim-2{animation-delay:.13s}
.anim-3{animation-delay:.21s}
.anim-4{animation-delay:.29s}
.anim-5{animation-delay:.37s}
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .anim{animation:none}
  .js .reveal{opacity:1;transform:none;transition:none}
  .btn,.num-item,.bind-row,.bind-feature{transition:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --paper:#F7F5F0;
  --paper-2:#EFEBE3;
  --ink:#10201C;
  --ink-2:#5B6A65;
  --line:#DCD7CC;
  --primary:#0E2E27;
  --accent:#C7F04A;
  --clay:#D2603A;
  --on-dark:#EEF3EF;
  --on-dark-line:rgba(255,255,255,.12);
  --radius:6px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-hover:0 12px 32px rgba(14,46,39,.10);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.2;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1024px){
  .container{padding-left:40px;padding-right:40px;}
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  color:var(--on-dark);
  border-bottom:1px solid var(--on-dark-line);
  transition:background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s var(--ease);
}
.site-header.is-scrolled,
.site-header.is-open{
  background:rgba(247,245,240,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  color:var(--ink);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:1.0625rem;
  letter-spacing:.01em;
  white-space:nowrap;
}
.brand-dot{
  width:8px;height:8px;
  background:var(--accent);
  display:inline-block;
  flex:0 0 auto;
}
.main-nav{
  display:none;
  align-items:center;
  gap:30px;
}
@media (min-width:1024px){
  .main-nav{display:flex;}
}
.nav-link{
  position:relative;
  padding:6px 2px 8px;
  font-size:.9375rem;
  letter-spacing:.02em;
  color:inherit;
  opacity:.9;
  transition:opacity .24s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:1.5px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease);
}
.nav-link:hover{opacity:1;}
.nav-link:hover::after,
.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{opacity:1;font-weight:700;}

.header-actions{display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  font-size:.9375rem;
  font-weight:700;
  letter-spacing:.02em;
  padding:11px 22px;
  transition:background-color .26s var(--ease), color .26s var(--ease), border-color .26s var(--ease), transform .26s var(--ease);
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-nav{
  background:var(--accent);
  color:var(--primary);
  padding:9px 18px;
  font-size:.875rem;
}
.btn-nav:hover{background:var(--on-dark);color:var(--primary);}
.btn-primary{
  background:var(--primary);
  color:var(--on-dark);
}
.btn-primary:hover{background:var(--accent);color:var(--primary);}
.btn-ghost{
  background:transparent;
  border:1px solid var(--primary);
  color:var(--primary);
}
.btn-ghost:hover{background:var(--paper-2);}
.btn-ghost::after{content:"→";margin-left:2px;transition:transform .26s var(--ease);}
.btn-ghost:hover::after{transform:translateX(4px);}
.btn-accent{
  background:var(--accent);
  color:var(--primary);
}
.btn-accent:hover{background:var(--on-dark);color:var(--primary);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.9375rem;
  font-weight:700;
  color:var(--primary);
  border-bottom:1px solid var(--primary);
  padding-bottom:2px;
  transition:border-color .24s var(--ease), color .24s var(--ease);
}
.link-arrow:hover{border-color:var(--accent);}

.nav-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:999px;
  border:1px solid currentColor;
  opacity:.85;
  transition:opacity .24s var(--ease);
}
.nav-toggle:hover{opacity:1;}
@media (min-width:1024px){
  .nav-toggle{display:none;}
}

.mobile-drawer{
  display:none;
  background:var(--paper);
  border-top:1px solid var(--line);
  padding:16px 20px 32px;
}
.mobile-drawer.open{display:block;}
@media (min-width:1024px){
  .mobile-drawer{display:none !important;}
}
.mobile-drawer a{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.5rem;
  font-weight:700;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  color:var(--ink);
}
.mobile-drawer a.active{color:var(--primary);}
.mobile-drawer a .dot{
  width:8px;height:8px;background:var(--accent);
  flex:0 0 auto;
  opacity:0;
}
.mobile-drawer a.active .dot{opacity:1;}
.mobile-drawer .drawer-foot{
  margin-top:24px;
  font-size:.875rem;
  color:var(--ink-2);
  line-height:1.9;
}

/* ---------- 通用区块 ---------- */
.section{padding:64px 0;}
@media (min-width:1024px){
  .section{padding:112px 0;}
}
.section-tight{padding:48px 0;}
@media (min-width:1024px){
  .section-tight{padding:80px 0;}
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ink-2);
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;
  background:var(--accent);
  display:inline-block;
}
.section-title{
  font-size:1.75rem;
  font-weight:700;
  letter-spacing:-.01em;
  margin-top:18px;
}
@media (min-width:1024px){
  .section-title{font-size:2.125rem;}
}
.title-rule{
  width:24px;height:1px;background:var(--accent);
  margin-bottom:16px;
}
.lede{
  color:var(--ink-2);
  font-size:1.0625rem;
  line-height:1.9;
  max-width:680px;
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:82vh;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  background:var(--primary);
}
@media (max-width:767px){
  .hero{min-height:88vh;}
}
.hero-media{
  position:absolute;
  inset:0;
  width:100%;height:100%;
  object-fit:cover;
  object-position:center;
}
.hero-mask{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(14,46,39,.62) 0%, rgba(14,46,39,.78) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
  padding-top:140px;
  padding-bottom:64px;
  color:var(--on-dark);
  width:100%;
}
@media (min-width:1024px){
  .hero-inner{padding-top:180px;padding-bottom:96px;}
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--on-dark);
  opacity:.85;
  margin-bottom:24px;
}
.hero-tag::before{
  content:"";
  width:6px;height:6px;background:var(--accent);
}
.hero h1{
  font-size:clamp(2.1rem,5.4vw,4rem);
  font-weight:900;
  line-height:1.1;
  letter-spacing:-.02em;
  max-width:900px;
}
.hero-sub{
  margin-top:24px;
  font-size:1.0625rem;
  line-height:1.85;
  color:rgba(238,243,239,.82);
  max-width:620px;
}
.hero-actions{
  margin-top:36px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:22px;
}
.hero-facts{
  margin-top:56px;
  padding-top:24px;
  border-top:1px solid var(--on-dark-line);
  display:grid;
  grid-template-columns:1fr;
  gap:18px 32px;
}
@media (min-width:640px){
  .hero-facts{grid-template-columns:repeat(3,minmax(0,1fr));}
}
.hero-fact{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-size:.9375rem;
  color:rgba(238,243,239,.86);
}
.hero-fact strong{
  font-size:1.25rem;
  font-weight:800;
  color:var(--on-dark);
}

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

/* ---------- 错落卡片 ---------- */
.stagger-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
@media (min-width:640px){
  .stagger-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (min-width:1024px){
  .stagger-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;}
}
.stagger-col{
  display:flex;
  flex-direction:column;
  gap:24px;
}
@media (min-width:1024px){
  .stagger-col.offset-1{margin-top:0;}
  .stagger-col.offset-2{margin-top:44px;}
  .stagger-col.offset-3{margin-top:88px;}
}
.plan-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}
.plan-card:hover{
  transform:translateY(-4px);
  border-color:var(--primary);
  box-shadow:var(--shadow-hover);
}
.plan-media{
  width:100%;
  overflow:hidden;
  background:var(--paper-2);
}
.plan-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s var(--ease);
}
.plan-card:hover .plan-media img{transform:scale(1.02);}
.ratio-16-10{aspect-ratio:16/10;}
.ratio-4-3{aspect-ratio:4/3;}
.ratio-1-1{aspect-ratio:1/1;}
.plan-body{padding:22px;}
@media (min-width:1024px){
  .plan-body{padding:26px;}
}
.plan-body h3{
  font-size:1.125rem;
  font-weight:700;
  margin-top:14px;
  line-height:1.4;
}
.plan-body p{
  margin-top:10px;
  color:var(--ink-2);
  font-size:.9375rem;
  line-height:1.8;
}
.tag{
  display:inline-flex;
  align-items:center;
  border:1px solid var(--line);
  border-radius:999px;
  padding:3px 11px;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--ink-2);
  background:var(--paper);
}
.tag-clay{
  border-color:rgba(210,96,58,.4);
  color:var(--clay);
}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
@media (min-width:768px){
  .stats{grid-template-columns:repeat(3,minmax(0,1fr));}
}
.stat{
  padding:32px 0;
  border-bottom:1px solid var(--line);
}
.stat:last-child{border-bottom:none;}
@media (min-width:768px){
  .stat{
    padding:44px 32px;
    border-bottom:none;
    border-right:1px solid var(--line);
  }
  .stat:first-child{padding-left:0;}
  .stat:last-child{border-right:none;}
}
.stat-num{
  font-size:clamp(2.1rem,4vw,3rem);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1;
  color:var(--primary);
}
.stat-label{
  margin-top:14px;
  font-size:.9375rem;
  color:var(--ink);
  font-weight:700;
}
.stat-desc{
  margin-top:6px;
  font-size:.875rem;
  color:var(--ink-2);
  line-height:1.8;
}

/* ---------- 流程行 ---------- */
.flow{
  border-top:1px solid var(--line);
}
.flow-row{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
  transition:transform .28s var(--ease);
}
@media (min-width:768px){
  .flow-row{
    grid-template-columns:88px minmax(0,1fr) minmax(0,1.1fr);
    gap:28px;
    align-items:start;
    padding:32px 0;
  }
}
.flow-row:hover{transform:translateX(4px);}
.flow-idx{
  font-size:1rem;
  font-weight:800;
  color:var(--ink-2);
  letter-spacing:.08em;
  transition:color .26s var(--ease);
}
.flow-row:hover .flow-idx{color:var(--accent);}
.flow-row h3{
  font-size:1.0625rem;
  font-weight:700;
  line-height:1.5;
}
.flow-row p{
  color:var(--ink-2);
  font-size:.9375rem;
  line-height:1.85;
}

/* ---------- 提示条 ---------- */
.note-band{
  background:var(--paper-2);
  border-radius:var(--radius);
  padding:26px;
  border:1px solid var(--line);
}
.note-band h3{
  font-size:1.0625rem;
  font-weight:700;
}
.note-band ul{margin-top:14px;}
.note-band li{
  position:relative;
  padding-left:18px;
  color:var(--ink-2);
  font-size:.9375rem;
  line-height:1.9;
}
.note-band li::before{
  content:"";
  position:absolute;
  left:0;top:.6em;
  width:6px;height:6px;
  background:var(--accent);
}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 0;
  font-size:1.0625rem;
  font-weight:700;
  color:var(--ink);
  transition:color .24s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-plus{
  flex:0 0 auto;
  width:28px;height:28px;
  border:1px solid var(--line);
  border-radius:999px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  line-height:1;
  color:var(--ink-2);
  transition:transform .28s var(--ease), background-color .28s var(--ease), border-color .28s var(--ease), color .28s var(--ease);
}
.faq-item[open] .faq-plus{
  transform:rotate(45deg);
  background:var(--accent);
  border-color:var(--accent);
  color:var(--primary);
}
.faq-answer{
  max-width:720px;
  padding:0 0 28px;
  color:var(--ink-2);
  font-size:1rem;
  line-height:1.9;
}
.faq-answer p + p{margin-top:12px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--primary);
  color:var(--on-dark);
  padding:72px 0;
}
@media (min-width:1024px){
  .cta-band{padding:112px 0;}
}
.cta-band h2{
  font-size:clamp(1.75rem,3.4vw,2.5rem);
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.25;
  max-width:760px;
}
.cta-band p{
  margin-top:20px;
  color:rgba(238,243,239,.78);
  font-size:1.0625rem;
  line-height:1.9;
  max-width:620px;
}
.cta-actions{
  margin-top:36px;
  display:flex;
  flex-wrap:wrap;
  gap:22px;
  align-items:center;
}
.cta-actions .link-arrow{
  color:var(--on-dark);
  border-color:rgba(238,243,239,.5);
}
.cta-actions .link-arrow:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--primary);
  color:var(--on-dark);
  padding:72px 0 0;
}
@media (min-width:1024px){
  .site-footer{padding-top:96px;}
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
  padding-bottom:56px;
}
@media (min-width:640px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (min-width:1024px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:48px;}
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:1.0625rem;
}
.footer-brand .brand-dot{background:var(--accent);}
.footer-desc{
  margin-top:18px;
  color:rgba(238,243,239,.72);
  font-size:.9375rem;
  line-height:1.9;
  max-width:340px;
}
.footer-title{
  font-size:13px;
  letter-spacing:.16em;
  color:rgba(238,243,239,.6);
  margin-bottom:18px;
}
.footer-list li{margin-bottom:12px;}
.footer-list a,.footer-list span{
  font-size:.9375rem;
  color:rgba(238,243,239,.85);
  transition:color .24s var(--ease), border-color .24s var(--ease);
  border-bottom:1px solid transparent;
}
.footer-list a:hover{
  color:var(--accent);
  border-bottom-color:var(--accent);
}
.footer-bottom{
  border-top:1px solid var(--on-dark-line);
  padding:24px 0 28px;
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
  color:rgba(238,243,239,.62);
}
@media (max-width:767px){
  .site-footer{padding-bottom:96px;}
}

/* ---------- 固定转化条 ---------- */
.fixed-cta{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:70;
  height:64px;
  display:flex;
  align-items:center;
  background:var(--paper);
  border-top:1px solid var(--line);
  box-shadow:0 -10px 28px rgba(14,46,39,.08);
  padding-bottom:env(safe-area-inset-bottom);
  opacity:0;
  transform:translateY(100%);
  transition:opacity .3s var(--ease), transform .3s var(--ease);
}
@media (max-width:767px){
  .fixed-cta{opacity:1;transform:none;}
  .fixed-cta.is-hidden{opacity:0;transform:translateY(100%);}
}
.fixed-cta.is-visible{opacity:1;transform:none;}
.fixed-cta-inner{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
@media (min-width:1024px){
  .fixed-cta-inner{padding:0 40px;}
}
.fixed-cta-text{
  font-size:.9375rem;
  color:var(--ink-2);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.fixed-cta-text strong{color:var(--ink);font-weight:700;}
.fixed-cta .btn{padding:9px 18px;font-size:.875rem;}

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

/* roulang page: category4 */
:root{
  --paper:#F7F5F0;
  --paper-2:#EFEBE3;
  --ink:#10201C;
  --ink-2:#5B6A65;
  --line:#DCD7CC;
  --primary:#0E2E27;
  --accent:#C7F04A;
  --clay:#D2603A;
  --on-dark:#EEF3EF;
  --dark-line:rgba(255,255,255,.12);
  --radius:6px;
  --pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --max:1240px;
  --shadow-hover:0 12px 32px rgba(14,46,39,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",ui-sans-serif,system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;}

.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1024px){
  .container{padding-left:40px;padding-right:40px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--pill);
  font-weight:700;
  letter-spacing:.02em;
  padding:14px 28px;
  font-size:.95rem;
  transition:background-color .26s var(--ease),color .26s var(--ease),border-color .26s var(--ease),transform .26s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:var(--on-dark);border:1px solid var(--primary);}
.btn-primary:hover{background:var(--accent);color:var(--primary);border-color:var(--accent);}
.btn-ghost{background:transparent;color:var(--primary);border:1px solid var(--primary);}
.btn-ghost:hover{background:var(--paper-2);}
.btn-ghost .arw{transition:transform .26s var(--ease);}
.btn-ghost:hover .arw{transform:translateX(4px);}
.btn-sm{padding:10px 20px;font-size:.875rem;}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:700;font-size:.95rem;color:var(--primary);
  border-bottom:1px solid var(--primary);
  padding-bottom:2px;
  transition:border-color .26s var(--ease),color .26s var(--ease);
}
.btn-text:hover{border-color:var(--accent);color:var(--primary);}
.btn-text .arw{transition:transform .26s var(--ease);}
.btn-text:hover .arw{transform:translateX(4px);}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;font-weight:700;
  color:var(--ink-2);
  text-transform:uppercase;
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none;}
.pill{
  display:inline-block;
  font-size:12px;
  letter-spacing:.06em;
  padding:4px 12px;
  border-radius:var(--pill);
  background:var(--paper-2);
  color:var(--ink-2);
  border:1px solid var(--line);
}
.pill-clay{background:transparent;color:var(--clay);border-color:var(--clay);}

/* ---------- 标题层级 ---------- */
.h1{font-size:clamp(1.9rem,3.6vw,3rem);font-weight:800;line-height:1.12;letter-spacing:-.02em;}
.h2{font-size:clamp(1.5rem,2.4vw,2.125rem);font-weight:700;line-height:1.2;letter-spacing:-.01em;}
.h3{font-size:1.125rem;font-weight:700;line-height:1.4;}
.lead{font-size:1.0625rem;line-height:1.8;color:var(--ink-2);}
.muted{color:var(--ink-2);}
.rule-top{display:block;width:24px;height:1px;background:var(--accent);margin-bottom:20px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  transition:background-color .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:1.0625rem;letter-spacing:-.01em;color:var(--ink);
}
.logo-mark{width:18px;height:18px;background:var(--primary);display:inline-flex;align-items:center;justify-content:center;border-radius:3px;flex:none;}
.logo-mark i{display:block;width:8px;height:8px;background:var(--accent);}
.main-nav{display:none;align-items:center;gap:30px;}
.nav-link{
  position:relative;
  font-size:.9375rem;
  font-weight:500;
  color:var(--ink);
  padding:6px 0;
  transition:color .24s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1.5px;width:0;
  background:var(--accent);
  transition:width .28s var(--ease);
}
.nav-link:hover::after,.nav-link.active::after{width:100%;}
.nav-link.active{font-weight:700;}
.header-cta{display:none;}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border:1px solid var(--line);border-radius:var(--pill);
  align-items:center;background:var(--paper);
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--ink);transition:transform .26s var(--ease),opacity .26s var(--ease);}
.nav-toggle.open span:nth-child(1){transform:translateY(3.5px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-3.5px) rotate(-45deg);}
.mobile-drawer{
  position:fixed;inset:72px 0 0 0;
  background:var(--paper);
  border-top:1px solid var(--line);
  padding:32px 20px 40px;
  display:flex;flex-direction:column;justify-content:space-between;
  transform:translateY(-8px);
  opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
  z-index:55;
}
.mobile-drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-drawer a.drawer-link{
  display:block;
  font-size:1.5rem;
  font-weight:700;
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.drawer-link.active{color:var(--primary);}
.mobile-drawer a.drawer-link.active::before{content:"";display:inline-block;width:8px;height:8px;background:var(--accent);border-radius:50%;margin-right:12px;vertical-align:middle;}
.drawer-foot{margin-top:32px;font-size:.875rem;color:var(--ink-2);line-height:1.9;}
@media (min-width:1024px){
  .main-nav{display:flex;}
  .header-cta{display:block;}
  .nav-toggle{display:none;}
  .mobile-drawer{display:none;}
}

/* ---------- Hero ---------- */
.hero{padding-top:120px;padding-bottom:64px;}
.hero-head{
  display:grid;
  grid-template-columns:1fr;
  gap:28px;
  align-items:end;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.hero-lead{max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:28px;}
.hero-kicker{margin-bottom:22px;display:flex;align-items:center;gap:10px;}
.kicker-square{width:8px;height:8px;background:var(--accent);display:inline-block;}
.hero-figure{position:relative;overflow:hidden;border-radius:var(--radius);margin-top:40px;}
.hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,46,39,.18),rgba(14,46,39,.46));}
.hero-figure figcaption{
  position:absolute;left:20px;bottom:18px;right:20px;
  color:var(--on-dark);
  font-size:.8125rem;
  letter-spacing:.04em;
  z-index:2;
}
@media (min-width:1024px){
  .hero{padding-top:152px;padding-bottom:96px;}
  .hero-head{grid-template-columns:7fr 5fr;gap:48px;}
}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  margin-top:56px;
}
.stat{padding:24px 0;border-bottom:1px solid var(--line);}
.stat:last-child{border-bottom:0;}
.stat-num{font-size:2rem;font-weight:800;letter-spacing:-.02em;line-height:1.1;font-variant-numeric:tabular-nums;}
.stat-label{font-size:.8125rem;color:var(--ink-2);margin-top:6px;letter-spacing:.04em;}
@media (min-width:768px){
  .stats{grid-template-columns:repeat(3,1fr);}
  .stat{padding:28px 28px 28px 0;border-bottom:0;border-right:1px solid var(--line);}
  .stat:last-child{border-right:0;padding-right:0;}
  .stat + .stat{padding-left:28px;}
}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0;}
.section-alt{background:var(--paper-2);}
.section-dark{background:var(--primary);color:var(--on-dark);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px;}
.section-head .h2{max-width:640px;}
@media (min-width:1024px){
  .section{padding:112px 0;}
  .section-dark .h2,.section-dark .lead{color:var(--on-dark);}
}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);}
table.cmp{width:100%;min-width:720px;border-collapse:collapse;font-size:.9375rem;}
table.cmp caption{text-align:left;padding:20px 24px;font-size:.8125rem;color:var(--ink-2);border-bottom:1px solid var(--line);letter-spacing:.04em;}
table.cmp th{
  text-align:left;font-size:12px;letter-spacing:.14em;font-weight:700;color:var(--ink-2);
  padding:16px 24px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.cmp td{padding:20px 24px;border-bottom:1px solid var(--line);vertical-align:top;}
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp td:first-child{color:var(--ink-2);width:26%;font-weight:600;}
table.cmp td:nth-child(2){color:var(--ink-2);width:34%;}
table.cmp td:last-child{color:var(--ink);font-weight:600;}
table.cmp tbody tr{transition:background-color .26s var(--ease);}
table.cmp tbody tr:hover{background:rgba(199,240,74,.08);}

/* ---------- 编号流程 ---------- */
.flow{border-top:1px solid var(--line);}
.flow-item{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:8px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
  transition:transform .26s var(--ease),border-color .26s var(--ease);
}
.flow-item:hover{transform:translateX(4px);}
.flow-num{font-size:.875rem;font-weight:700;color:var(--ink-2);letter-spacing:.1em;font-variant-numeric:tabular-nums;transition:color .26s var(--ease);}
.flow-item:hover .flow-num{color:var(--accent);}
.flow-body h3{margin-bottom:6px;}
.flow-body p{color:var(--ink-2);font-size:.9375rem;max-width:620px;}
@media (min-width:768px){
  .flow-item{grid-template-columns:120px 1fr;gap:24px;padding:32px 0;}
}

/* ---------- 错落提示块 ---------- */
.notice-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.notice{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--paper);
  padding:26px;
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.notice:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-hover);}
.notice h3{margin:14px 0 10px;}
.notice p{color:var(--ink-2);font-size:.9375rem;}
.notice-wide{grid-column:auto;}
@media (min-width:768px){
  .notice-grid{grid-template-columns:repeat(2,1fr);}
  .notice-grid .notice:nth-child(1){grid-column:1 / -1;}
  .notice-grid .notice:nth-child(2){grid-row:span 1;}
}
@media (min-width:1024px){
  .notice-grid{grid-template-columns:1.25fr 1fr 1fr;}
  .notice-grid .notice:nth-child(1){grid-column:1 / 2;}
}

/* ---------- 引用 ---------- */
.quote-block{border-top:1px solid var(--line);padding-top:32px;margin-top:8px;}
.quote-mark{font-size:3rem;line-height:1;color:var(--accent);font-weight:800;}
.quote-text{font-size:1.125rem;line-height:1.8;max-width:720px;margin-top:8px;font-weight:500;}
.quote-person{font-size:.875rem;color:var(--ink-2);margin-top:14px;letter-spacing:.04em;}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:24px;
  padding:26px 0;
  font-size:1.0625rem;
  font-weight:700;
  transition:color .24s var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--primary);}
.faq-plus{
  flex:none;
  width:22px;height:22px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-2);
  font-size:1.25rem;font-weight:400;line-height:1;
  transition:transform .28s var(--ease),color .28s var(--ease);
}
.faq details[open] .faq-plus{transform:rotate(45deg);color:var(--accent);}
.faq-answer{
  max-width:720px;
  padding:0 0 28px;
  color:var(--ink-2);
  font-size:.9375rem;
  line-height:1.85;
}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--primary);color:var(--on-dark);padding:72px 0;}
.cta-band .h2{color:var(--on-dark);max-width:720px;}
.cta-band p{color:rgba(238,243,239,.78);margin-top:18px;max-width:640px;}
.cta-band .btn-primary{background:var(--accent);color:var(--primary);border-color:var(--accent);margin-top:32px;}
.cta-band .btn-primary:hover{background:var(--on-dark);color:var(--primary);border-color:var(--on-dark);}
@media (min-width:1024px){.cta-band{padding:112px 0;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:var(--on-dark);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo{color:var(--on-dark);}
.footer-brand p{color:rgba(238,243,239,.72);font-size:.9375rem;line-height:1.85;margin-top:16px;max-width:340px;}
.footer-col h4{font-size:12px;letter-spacing:.16em;font-weight:700;color:rgba(238,243,239,.6);margin-bottom:18px;}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:.9375rem;color:rgba(238,243,239,.85);transition:color .24s var(--ease);}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  border-top:1px solid var(--dark-line);
  padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(238,243,239,.6);
}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;}}

/* ---------- 固定转化条 ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(247,245,240,.96);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(14,46,39,.08);
  transform:translateY(0);
  transition:transform .3s var(--ease),opacity .3s var(--ease);
  padding-bottom:env(safe-area-inset-bottom);
}
.sticky-inner{
  max-width:var(--max);
  margin:0 auto;
  padding:0 20px;
  min-height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.sticky-text{font-size:.875rem;color:var(--ink-2);}
.sticky-text strong{color:var(--ink);font-weight:700;}
.sticky-bar.hidden-bar{transform:translateY(110%);opacity:0;pointer-events:none;}
@media (min-width:1024px){
  .sticky-bar{opacity:0;transform:translateY(110%);pointer-events:none;}
  .sticky-bar.show{opacity:1;transform:translateY(0);pointer-events:auto;}
  .sticky-bar.hidden-bar{opacity:0;transform:translateY(110%);}
  .sticky-inner{padding:0 40px;}
}
body{padding-bottom:80px;}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in{opacity:1;transform:none;}
.hero-anim{opacity:0;transform:translateY(12px);animation:heroIn .6s var(--ease) forwards;}
.hero-anim.d1{animation-delay:.06s;}
.hero-anim.d2{animation-delay:.14s;}
.hero-anim.d3{animation-delay:.22s;}
.hero-anim.d4{animation-delay:.3s;}
@keyframes heroIn{to{opacity:1;transform:none;}}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  .hero-anim{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}