/* roulang page: index */
:root{
  --ink:#0E1A16;
  --ink-70:rgba(14,26,22,.70);
  --ink-45:rgba(14,26,22,.45);
  --paper:#F7F6F2;
  --paper-2:#EFEDE6;
  --accent:#C6F03C;
  --accent-ink:#0E1A16;
  --line:#DAD6CB;
  --muted:#6C746E;
  --danger:#C0492B;
  --r-card:14px;
  --r-btn:8px;
  --shadow-hover:0 8px 24px rgba(14,26,22,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::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:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;background:var(--paper-2);}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--ink);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.1em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
::selection{background:var(--accent);color:var(--accent-ink);}

/* layout */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
.gap-32{margin-left:-16px;margin-right:-16px;}
.gap-32>.cell{padding-left:16px;padding-right:16px;}
.gap-24{margin-left:-12px;margin-right:-12px;}
.gap-24>.cell{padding-left:12px;padding-right:12px;}
.section{padding:104px 0;border-top:1px solid var(--line);}
.section:first-of-type{border-top:0;}
.section-tight{padding:72px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.sec-label{display:inline-block;font-size:12px;letter-spacing:.18em;font-weight:700;color:var(--muted);text-transform:uppercase;margin-bottom:10px;}
.sec-title{font-size:clamp(24px,2.8vw,36px);font-weight:900;letter-spacing:-.02em;line-height:1.2;}
.sec-desc{margin-top:12px;color:var(--ink-70);font-size:15px;max-width:640px;line-height:1.8;}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);}
.btn-primary:hover,.btn-primary:focus{background:var(--ink);color:var(--accent);border-color:var(--ink);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-1px);}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:15px;
  border-bottom:1.5px solid var(--line);padding-bottom:2px;
  transition:border-color .22s var(--ease),gap .22s var(--ease);
}
.link-arrow:hover{border-color:var(--ink);gap:12px;}
.tag{
  display:inline-block;font-size:12px;letter-spacing:.06em;font-weight:700;
  padding:5px 12px;border-radius:999px;border:1px solid var(--line);color:var(--ink-70);background:var(--paper);
}
.tag-accent{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);}
.badge{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:3px 10px;border-radius:999px;background:var(--paper-2);color:var(--ink-70);
  white-space:nowrap;
}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(247,246,242,.92);
  border-bottom:1px solid transparent;transition:border-color .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
  backdrop-filter:saturate(140%) blur(8px);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(14,26,22,.05);background:rgba(247,246,242,.97);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px;padding-top:12px;padding-bottom:12px;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.logo{display:flex;flex-direction:column;line-height:1.15;gap:2px;}
.logo-main{font-size:21px;font-weight:900;letter-spacing:-.02em;color:var(--ink);}
.logo-sub{font-size:11px;font-weight:700;letter-spacing:.18em;color:var(--muted);}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-link{position:relative;font-size:15px;font-weight:600;color:var(--ink-70);padding:6px 0;}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--ink);
  transition:width .22s var(--ease);
}
.nav-link:hover,.nav-link:focus{color:var(--ink);}
.nav-link:hover::after,.nav-link:focus::after{width:100%;}
.nav-link.is-active{color:var(--ink);font-weight:800;}
.nav-link.is-active::after{width:100%;background:var(--accent);height:3px;}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-drawer-cta{display:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--paper);cursor:pointer;padding:0;position:relative;
}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;background:var(--ink);transition:transform .25s var(--ease),opacity .2s var(--ease);}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:21px;}
.nav-toggle span:nth-child(3){top:27px;}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* hero */
.hero{padding:64px 0 88px;position:relative;overflow:hidden;}
.hero::before{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;
  border:1px solid var(--line);border-radius:50%;pointer-events:none;
}
.hero-text{position:relative;z-index:2;}
.hero h1{
  font-size:clamp(30px,4.4vw,54px);font-weight:900;line-height:1.1;letter-spacing:-.02em;
  margin:18px 0 0;max-width:12em;
}
.hero-sub{font-size:17px;color:var(--ink-70);margin-top:20px;max-width:30em;line-height:1.75;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.kpi-row{display:flex;align-items:stretch;gap:0;margin-top:44px;flex-wrap:wrap;}
.kpi{padding:0 22px;border-left:1px solid var(--line);}
.kpi:first-child{padding-left:0;border-left:0;}
.kpi strong{display:block;font-size:26px;font-weight:900;letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.2;}
.kpi strong em{font-style:normal;font-size:13px;font-weight:700;color:var(--muted);margin-left:4px;}
.kpi span{display:block;font-size:13px;color:var(--muted);letter-spacing:.04em;margin-top:2px;}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;background:var(--paper-2);box-shadow:inset 0 0 0 1px rgba(14,26,22,.06);}
.hero-media img{width:100%;height:100%;min-height:440px;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(45deg,rgba(14,26,22,.78) 0%,rgba(14,26,22,.30) 46%,rgba(14,26,22,.02) 78%);
}
.hero-note{
  position:absolute;left:24px;right:24px;bottom:24px;z-index:2;color:#F7F6F2;
}
.hero-note .tag{background:rgba(198,240,60,.92);border-color:transparent;color:var(--accent-ink);}
.hero-note p{margin-top:12px;font-size:16px;font-weight:700;line-height:1.6;max-width:22em;}
.hero-note small{display:block;margin-top:6px;font-size:13px;color:rgba(247,246,242,.78);letter-spacing:.02em;}

/* points */
.point-main{padding-right:32px;border-right:1px solid var(--line);}
.point-num{font-size:56px;font-weight:900;letter-spacing:-.04em;line-height:1;color:var(--paper-2);-webkit-text-stroke:1px var(--line);font-variant-numeric:tabular-nums;}
.point-main h3,.point-side h3{font-size:22px;font-weight:800;letter-spacing:-.01em;margin-top:14px;line-height:1.35;}
.point-main p,.point-side p{color:var(--ink-70);font-size:15px;margin-top:10px;line-height:1.85;}
.point-side{padding:26px 0;border-bottom:1px solid var(--line);}
.point-side:first-child{padding-top:0;}
.point-side:last-child{border-bottom:0;padding-bottom:0;}
.point-side .point-num{font-size:34px;}
.point-side h3{font-size:19px;margin-top:10px;}
.point-main .link-arrow{margin-top:22px;}

/* scenes */
.scene{margin-bottom:88px;}
.scene:last-child{margin-bottom:0;}
.scene-media{border-radius:var(--r-card);overflow:hidden;background:var(--paper-2);border:1px solid var(--line);}
.scene-media img{width:100%;height:100%;min-height:320px;object-fit:cover;transition:transform .3s var(--ease);}
.scene-media:hover img{transform:scale(1.03);}
.scene h3{font-size:clamp(21px,2.2vw,26px);font-weight:900;letter-spacing:-.01em;line-height:1.35;}
.scene-list{list-style:none;padding:0;margin:20px 0 0;}
.scene-list li{position:relative;padding-left:20px;color:var(--ink-70);font-size:15px;line-height:1.85;margin-bottom:12px;}
.scene-list li::before{content:"";position:absolute;left:0;top:13px;width:7px;height:7px;background:var(--accent);border-radius:2px;}
.scene .link-arrow{margin-top:8px;}

/* news list */
.news-list{border-top:1px solid var(--line);}
.news-row{
  display:flex;align-items:flex-start;justify-content:space-between;gap:28px;
  padding:22px 12px;border-bottom:1px solid var(--line);
  transition:background .22s var(--ease),padding .22s var(--ease);
}
.news-row:hover{background:var(--paper-2);}
.news-main{min-width:0;flex:1 1 auto;}
.news-title{
  font-size:17px;font-weight:800;letter-spacing:-.01em;line-height:1.5;margin-top:8px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.news-excerpt{
  color:var(--ink-70);font-size:14px;line-height:1.75;margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-side{
  display:flex;align-items:center;gap:16px;flex:0 0 auto;color:var(--muted);
  font-size:13px;font-variant-numeric:tabular-nums;padding-top:6px;
}
.news-arrow{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border:1px solid var(--line);border-radius:999px;color:var(--ink);transition:transform .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);}
.news-row:hover .news-arrow{transform:translateX(6px);background:var(--accent);border-color:var(--accent);}
.news-empty{padding:48px 24px;text-align:center;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--paper-2);color:var(--ink-70);}
.news-empty .link-arrow{margin-top:14px;}

/* stats */
.stats-band{background:var(--ink);color:#F7F6F2;border-radius:var(--r-card);padding:52px 40px;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat strong{display:block;font-size:clamp(28px,3vw,40px);font-weight:900;letter-spacing:-.03em;line-height:1.1;color:var(--accent);font-variant-numeric:tabular-nums;}
.stat span{display:block;margin-top:8px;font-size:14px;color:rgba(247,246,242,.72);line-height:1.7;}
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px;}
.quote{border-top:2px solid var(--ink);padding-top:18px;}
.quote p{font-size:16px;line-height:1.85;color:var(--ink);font-weight:600;}
.quote p::before{content:"“";font-size:30px;line-height:0;vertical-align:-6px;margin-right:4px;color:var(--accent);font-weight:900;}
.quote p::after{content:"”";font-size:30px;line-height:0;vertical-align:-6px;margin-left:2px;color:var(--accent);font-weight:900;}
.quote span{display:block;margin-top:12px;font-size:13px;color:var(--muted);letter-spacing:.04em;}
.media-row{display:flex;flex-wrap:wrap;gap:36px;margin-top:52px;padding-top:32px;border-top:1px solid var(--line);}
.media-row span{font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--ink-45);}

/* faq */
.faq-col-title h2{font-size:clamp(24px,2.6vw,32px);font-weight:900;letter-spacing:-.02em;line-height:1.25;}
.faq-col-title p{color:var(--ink-70);font-size:15px;margin-top:14px;max-width:20em;line-height:1.8;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  padding:22px 4px 22px 16px;font-size:16px;font-weight:700;color:var(--ink);line-height:1.6;
  position:relative;transition:color .2s var(--ease);
}
.faq-q::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:2px;background:transparent;transition:background .2s var(--ease);}
.faq-item.is-open .faq-q::before{background:var(--accent);}
.faq-q:hover{color:var(--ink-70);}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink);transition:transform .25s var(--ease),opacity .25s 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.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{padding:0 32px 22px 16px;font-size:15px;line-height:1.85;color:var(--ink-70);}

/* cta */
.cta-block{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);padding:56px 48px;}
.cta-block h2{font-size:clamp(24px,3vw,36px);font-weight:900;letter-spacing:-.02em;line-height:1.2;}
.cta-block p{color:var(--ink-70);font-size:16px;margin-top:14px;max-width:34em;line-height:1.8;}
.cta-form{display:flex;gap:12px;margin-top:28px;max-width:520px;}
.cta-form input[type="tel"]{
  flex:1 1 auto;height:48px;padding:0 16px;background:var(--paper);
  border:0;border-bottom:1.5px solid var(--line);border-radius:var(--r-btn) var(--r-btn) 0 0;
  font-size:15px;color:var(--ink);transition:border-color .2s var(--ease),background .2s var(--ease);
}
.cta-form input[type="tel"]::placeholder{color:var(--ink-45);}
.cta-form input[type="tel"]:focus{outline:none;border-bottom-color:var(--ink);background:#fff;}
.cta-form.is-error input[type="tel"]{border-bottom-color:var(--danger);}
.form-msg{margin-top:12px;font-size:13px;color:var(--muted);min-height:20px;}
.form-msg.is-error{color:var(--danger);}
.form-msg.is-ok{color:var(--muted);}
.cta-side{border-left:1px solid var(--line);padding-left:32px;}
.cta-side dl{margin:0;}
.cta-side dt{font-size:13px;letter-spacing:.08em;color:var(--muted);font-weight:700;margin-top:18px;}
.cta-side dt:first-child{margin-top:0;}
.cta-side dd{margin:4px 0 0;font-size:15px;color:var(--ink);}

/* footer */
.site-footer{background:var(--ink);color:#F7F6F2;padding:72px 0 32px;margin-top:104px;}
.site-footer a{color:rgba(247,246,242,.78);}
.site-footer a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.footer-logo .logo-main{color:#F7F6F2;}
.footer-logo .logo-sub{color:rgba(247,246,242,.5);}
.footer-brand p{margin-top:16px;font-size:14px;color:rgba(247,246,242,.62);line-height:1.8;max-width:20em;}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.1em;color:rgba(247,246,242,.55);margin-bottom:16px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;font-size:14px;color:rgba(247,246,242,.78);}
.footer-bottom{margin-top:52px;padding-top:24px;border-top:1px solid rgba(247,246,242,.16);display:flex;flex-wrap:wrap;gap:14px 32px;justify-content:space-between;font-size:13px;color:rgba(247,246,242,.52);line-height:1.8;}
.footer-bottom a{color:rgba(247,246,242,.52);}

/* mobile bar */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--ink);color:#F7F6F2;padding:10px 16px;
  align-items:center;gap:12px;box-shadow:0 -6px 20px rgba(14,26,22,.18);
}
.mobile-bar p{flex:1 1 auto;font-size:13px;line-height:1.5;color:rgba(247,246,242,.82);margin:0;}
.mobile-bar .btn{height:42px;padding:0 16px;font-size:14px;}
.mobile-bar-close{background:transparent;border:0;color:rgba(247,246,242,.6);font-size:22px;line-height:1;cursor:pointer;padding:4px 6px;}
.mobile-bar.is-hidden{display:none !important;}

/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* responsive */
@media (max-width:1023px){
  .section{padding:72px 0;}
  .hero{padding:40px 0 64px;}
  .hero-media img{min-height:340px;}
  .point-main{border-right:0;padding-right:0;border-bottom:1px solid var(--line);padding-bottom:32px;margin-bottom:32px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .quotes{grid-template-columns:1fr;gap:28px;margin-top:44px;}
  .cta-side{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:24px;margin-top:32px;}
  .nav-links{
    position:fixed;inset:76px 0 0 0;background:var(--paper);
    flex-direction:column;align-items:stretch;gap:0;
    padding:24px 24px 40px;overflow-y:auto;
    transform:translateX(100%);opacity:0;pointer-events:none;
    transition:transform .3s var(--ease),opacity .25s var(--ease);
    border-top:1px solid var(--line);
  }
  body.nav-open .nav-links{transform:none;opacity:1;pointer-events:auto;}
  .nav-link{font-size:20px;font-weight:800;padding:18px 0;border-bottom:1px solid var(--line);color:var(--ink);}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--ink);}
  .nav-drawer-cta{display:block;margin-top:28px;}
  .nav-drawer-cta .btn{width:100%;}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .nav-inner{min-height:76px;}
}
@media (max-width:767px){
  body{padding-bottom:72px;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .nav-inner{padding-left:20px;padding-right:20px;}
  .section{padding:56px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .hero h1{font-size:clamp(28px,7vw,38px);}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .kpi-row{margin-top:32px;}
  .kpi{padding:0 16px;}
  .kpi strong{font-size:22px;}
  .hero-media img{min-height:260px;}
  .hero-note{left:18px;right:18px;bottom:18px;}
  .scene{margin-bottom:56px;}
  .scene-media img{min-height:220px;}
  .news-row{flex-direction:column;gap:10px;padding:20px 4px;}
  .news-title{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .news-side{width:100%;justify-content:space-between;padding-top:0;}
  .stats-band{padding:36px 24px;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:26px 18px;}
  .stat strong{font-size:26px;}
  .media-row{gap:20px 28px;margin-top:36px;}
  .cta-block{padding:32px 22px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .faq-q{font-size:15px;padding:18px 4px 18px 14px;}
  .site-footer{padding:56px 0 96px;margin-top:56px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .mobile-bar{display:flex;}
}
@media (max-width:519px){
  .stats-grid{grid-template-columns:1fr;}
  .kpi-row{flex-direction:column;gap:14px;}
  .kpi{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:12px;}
  .kpi:first-child{border-top:0;padding-top:0;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink:#0E1A16;
  --ink-70:rgba(14,26,22,.72);
  --ink-45:rgba(14,26,22,.48);
  --paper:#F7F6F2;
  --paper-2:#EFEDE6;
  --accent:#C6F03C;
  --accent-soft:rgba(198,240,60,.28);
  --line:#DAD6CB;
  --muted:#6C746E;
  --radius-card:14px;
  --radius-btn:8px;
  --shadow-hover:0 8px 24px rgba(14,26,22,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --space-section:104px;
  --font-sans:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--ink);text-decoration:none;background-color:transparent}
a:hover,a:focus{color:var(--ink)}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
.grid-container.full{max-width:100%;padding-left:0;padding-right:0}
.grid-x.gap-32{margin-left:-16px;margin-right:-16px}
.grid-x.gap-32>.cell{padding-left:16px;padding-right:16px}
.tabular{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  border:1.5px solid transparent;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:var(--ink);border-color:var(--accent)}
.btn-primary:hover{background:var(--ink);color:var(--accent);border-color:var(--ink);transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:700;color:var(--ink);
  border-bottom:1px solid var(--line);padding-bottom:3px;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.link-arrow svg{transition:transform .22s var(--ease)}
.link-arrow:hover{border-color:var(--ink)}
.link-arrow:hover svg{transform:translateX(6px)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.94);
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(14,26,22,.05)}
.nav-inner{
  max-width:1200px;margin:0 auto;
  padding:14px 24px;
  display:flex;align-items:center;gap:24px;
}
.logo{display:inline-flex;flex-direction:column;line-height:1.1;flex:0 0 auto}
.logo-main{font-size:21px;font-weight:900;letter-spacing:-.02em;color:var(--ink)}
.logo-sub{font-size:11px;letter-spacing:.18em;color:var(--muted);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 14px;font-size:15px;font-weight:600;color:var(--ink-70);
  border-radius:8px;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-drawer-cta{display:none}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;
}
.nav-toggle span{display:block;width:18px;height:1.8px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.8px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.8px) rotate(-45deg)}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:26px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--ink-70);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s var(--ease),color .2s var(--ease)}
.breadcrumb a:hover{color:var(--ink);border-bottom-color:var(--ink)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--muted);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-head{padding:32px 0 0}
.article-head-inner{max-width:820px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:var(--accent);color:var(--ink);
  font-size:12px;font-weight:700;letter-spacing:.06em;
}
.badge-quiet{background:var(--paper-2);color:var(--ink-70);font-weight:600}
.article-title{
  margin:18px 0 0;
  font-size:clamp(28px,4.2vw,46px);
  font-weight:900;line-height:1.25;letter-spacing:-.02em;
  color:var(--ink);
  overflow-wrap:break-word;word-break:break-word;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  margin-top:20px;font-size:13.5px;color:var(--muted);
}
.article-meta .meta-sep{width:1px;height:12px;background:var(--line)}
.article-meta strong{color:var(--ink-70);font-weight:600}
.article-rule{height:1px;background:var(--line);margin:32px 0 0}

/* ---------- 文章布局 ---------- */
.article-layout{padding:44px 0 var(--space-section)}
.article-main{min-width:0}
.article-body-wrap{max-width:760px}
.article-body{
  font-size:16px;line-height:1.9;color:var(--ink-70);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:clamp(22px,2.5vw,29px);line-height:1.32;font-weight:800;
  letter-spacing:-.02em;color:var(--ink);
  margin:1.9em 0 .65em;
  display:flex;align-items:baseline;gap:10px;
}
.article-body h2::before{
  content:"";flex:0 0 auto;width:4px;height:.86em;border-radius:2px;
  background:var(--accent);transform:translateY(.04em);
}
.article-body h3{
  font-size:20px;line-height:1.45;font-weight:800;color:var(--ink);
  margin:1.6em 0 .5em;
}
.article-body h4{font-size:17px;font-weight:800;color:var(--ink);margin:1.4em 0 .4em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em}
.article-body ul li{position:relative;margin-bottom:.55em;list-style:none;padding-left:.2em}
.article-body ul li::before{
  content:"";position:absolute;left:-1em;top:.72em;
  width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.article-body ol{list-style:decimal;padding-left:1.5em}
.article-body ol li{margin-bottom:.55em;padding-left:.25em}
.article-body blockquote{
  margin:1.7em 0;padding:18px 22px;
  background:var(--paper-2);border-left:3px solid var(--accent);
  border-radius:0 var(--radius-card) var(--radius-card) 0;
  color:var(--ink);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-card);margin:1.5em 0;height:auto}
.article-body a{color:var(--ink);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-body a:hover{text-decoration-thickness:2px}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.2em 0}
.article-body strong{color:var(--ink);font-weight:800}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:var(--paper-2);color:var(--ink);font-weight:800}
.article-body tr:last-child td{border-bottom:none}
.article-body code{background:var(--paper-2);padding:2px 6px;border-radius:6px;font-size:.92em;color:var(--ink)}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);
  background:#fff;padding:56px 28px;text-align:center;
}
.empty-state .empty-mark{
  width:52px;height:52px;border-radius:14px;background:var(--paper-2);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;
}
.empty-state h2{font-size:22px;font-weight:800;color:var(--ink);margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:20px}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:#fff;padding:22px;
}
.side-card h3{
  font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--muted);
  margin-bottom:14px;text-transform:none;
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:8px;font-size:14.5px;font-weight:600;color:var(--ink-70);
  transition:background-color .2s var(--ease),color .2s var(--ease),padding-left .2s var(--ease);
}
.toc-list a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--line);flex:0 0 auto;transition:background-color .2s var(--ease)}
.toc-list a:hover{background:var(--paper-2);color:var(--ink);padding-left:14px}
.toc-list a:hover::before{background:var(--accent)}
.side-list{display:flex;flex-direction:column}
.side-list a{
  display:block;padding:13px 0;border-bottom:1px solid var(--line);
  transition:padding-left .2s var(--ease);
}
.side-list a:last-child{border-bottom:none;padding-bottom:0}
.side-list a:first-child{padding-top:0}
.side-list .side-list-meta{display:block;font-size:12px;letter-spacing:.06em;color:var(--muted);margin-bottom:5px}
.side-list .side-list-title{display:block;font-size:14.5px;font-weight:700;color:var(--ink);line-height:1.55}
.side-list a:hover{padding-left:6px}
.side-list a:hover .side-list-title{text-decoration:underline;text-underline-offset:3px}
.side-cta{
  background:var(--ink);border-radius:var(--radius-card);padding:24px;color:#fff;
}
.side-cta h3{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.14em;margin-bottom:10px}
.side-cta p{font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.76);margin-bottom:18px}
.side-cta .btn{height:44px;width:100%;font-size:14px}

/* ---------- 文末标签与分享 ---------- */
.article-foot{margin-top:48px;padding-top:28px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  border:1px solid var(--line);background:transparent;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;color:var(--ink-70);
  transition:border-color .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease);
}
.tag:hover{border-color:var(--ink);background:var(--paper-2);color:var(--ink)}
.article-foot-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.share-note{font-size:13px;color:var(--muted)}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 var(--space-section)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:32px;
}
.section-head .eyebrow{
  display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.18em;
  color:var(--muted);margin-bottom:10px;
}
.section-head h2{
  font-size:clamp(24px,2.8vw,34px);font-weight:900;letter-spacing:-.02em;
  line-height:1.2;color:var(--ink);
}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rec-card{
  display:flex;flex-direction:column;
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:#fff;overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.rec-card:hover{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.rec-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper-2)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body .badge{align-self:flex-start}
.rec-title{font-size:16.5px;font-weight:800;line-height:1.5;color:var(--ink)}
.rec-desc{font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--muted);
}
.rec-foot svg{transition:transform .22s var(--ease);color:var(--ink)}
.rec-card:hover .rec-foot svg{transform:translateX(5px)}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 var(--space-section)}
.cta-inner{
  background:var(--ink);border-radius:20px;padding:56px 48px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;
  border-radius:50%;border:1px solid rgba(198,240,60,.22);pointer-events:none;
}
.cta-copy h2{
  font-size:clamp(24px,3vw,36px);font-weight:900;line-height:1.2;
  letter-spacing:-.02em;color:#fff;
}
.cta-copy p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:38ch}
.cta-form{position:relative;z-index:1}
.field-row{display:flex;gap:10px}
.field-row input{
  flex:1;min-width:0;height:48px;padding:0 16px;
  background:transparent;border:none;border-bottom:1.5px solid rgba(255,255,255,.32);
  color:#fff;font-size:15px;border-radius:0;
  transition:border-color .2s var(--ease);
}
.field-row input::placeholder{color:rgba(255,255,255,.42)}
.field-row input:focus{outline:none;border-bottom-color:var(--accent)}
.field-row input.is-error{border-bottom-color:#F2705A}
.field-hint{margin-top:10px;font-size:12.5px;color:rgba(255,255,255,.5)}
.field-hint.is-error{color:#F2705A}
.form-note{margin-top:14px;font-size:12.5px;color:rgba(255,255,255,.45);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:0}
.footer-brand .footer-logo{margin-bottom:16px}
.site-footer .logo-main{color:#fff;font-size:20px}
.site-footer .logo-sub{color:rgba(255,255,255,.5)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:26ch}
.footer-col h4{font-size:13px;font-weight:800;letter-spacing:.1em;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;line-height:1.7;color:rgba(255,255,255,.62)}
.footer-col a{color:rgba(255,255,255,.62);text-decoration:none;border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.footer-col a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.45);
}
.footer-bottom a{color:rgba(255,255,255,.55)}

/* ---------- 移动固定转化条 ---------- */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:var(--ink);padding:12px 20px;align-items:center;gap:12px;
  box-shadow:0 -8px 24px rgba(14,26,22,.22);
}
.mobile-bar .btn{flex:1;height:44px}
.mobile-bar-close{
  width:34px;height:34px;flex:0 0 auto;border-radius:8px;
  border:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.7);
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;
}
.mobile-bar-close:hover{color:#fff;border-color:rgba(255,255,255,.5)}
.mobile-bar.is-hidden{display:none !important}

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

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  :root{--space-section:80px}
  .nav-link{padding:9px 10px;font-size:14.5px}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:44px 32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .side-sticky{position:static}
}
@media screen and (max-width:767px){
  :root{--space-section:64px}
  .grid-container{padding-left:20px;padding-right:20px}
  .nav-inner{padding:12px 20px;gap:12px}
  .logo-main{font-size:18px}
  .logo-sub{font-size:10px;letter-spacing:.16em}
  .nav-toggle{display:flex}
  .nav-right .nav-cta{display:none}
  .nav-links{
    position:fixed;inset:0;z-index:70;
    background:var(--paper);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    padding:88px 24px 32px;gap:0;
    transform:translateY(-8px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
    overflow-y:auto;
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:none;pointer-events:auto}
  .nav-link{
    display:block;font-size:19px;font-weight:800;padding:18px 4px;
    border-bottom:1px solid var(--line);border-radius:0;color:var(--ink);
  }
  .nav-link::after{display:none}
  .nav-drawer-cta{display:block;margin-top:28px}
  .nav-drawer-cta .btn{width:100%}
  body.nav-open{overflow:hidden}
  .article-title{-webkit-line-clamp:4;font-size:clamp(25px,7vw,32px);line-height:1.3}
  .breadcrumb .current{max-width:52vw}
  .card-grid{grid-template-columns:1fr}
  .article-layout{padding-top:32px}
  .cta-inner{padding:34px 24px;border-radius:16px}
  .field-row{flex-direction:column}
  .field-row .btn{width:100%}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .site-footer{padding:48px 0 86px}
  .mobile-bar{display:flex}
  .mobile-bar.is-hidden{display:none !important}
  body{padding-bottom:0}
}
@media screen and (max-width:519px){
  .article-meta{font-size:12.5px;gap:8px 10px}
  .footer-bottom{flex-direction:column;gap:8px}
  .side-card{padding:18px}
  .cta-copy h2{font-size:24px}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --ink:#0E1A16;
  --ink-70:rgba(14,26,22,.70);
  --ink-45:rgba(14,26,22,.45);
  --paper:#F7F6F2;
  --paper-2:#EFEDE6;
  --accent:#C6F03C;
  --accent-ink:#0E1A16;
  --line:#DAD6CB;
  --muted:#6C746E;
  --radius-card:14px;
  --radius-btn:8px;
  --shadow-hover:0 8px 24px rgba(14,26,22,.08);
  --container:1200px;
  --font:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --header-h:69px;
}

/* ============ 基础重置 ============ */
*,*::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:var(--font);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.nav-locked{overflow:hidden;}
img{max-width:100%;height:auto;display:block;background:var(--paper-2);}
a{color:var(--ink);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--ink);}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.02em;line-height:1.16;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}
::selection{background:var(--accent);color:var(--accent-ink);}

/* ============ 容器与栅格 ============ */
.grid-container{
  width:100%;
  max-width:var(--container);
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}
.grid-x{gap:0;}
.gap-16{gap:16px;}
.gap-24{gap:24px;}
.gap-32{gap:32px;}
.gap-48{gap:48px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:800;
  line-height:1;
  letter-spacing:.01em;
  text-decoration:none;
  cursor:pointer;
  transition:background .22s cubic-bezier(.2,.7,.2,1),color .22s cubic-bezier(.2,.7,.2,1),border-color .22s,transform .22s cubic-bezier(.2,.7,.2,1),box-shadow .22s;
}
.btn-primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);}
.btn-primary:hover,.btn-primary:focus{background:var(--ink);color:var(--accent);border-color:var(--ink);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--ink);color:#F7F6F2;}
.btn-sm{height:44px;padding:0 18px;font-size:14px;}
.btn-dark{background:var(--ink);color:var(--accent);border-color:var(--ink);}
.btn-dark:hover,.btn-dark:focus{background:#F7F6F2;color:var(--ink);border-color:var(--ink);transform:translateY(-1px);}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:800;
  color:var(--ink);
  text-decoration:none;
  border-bottom:2px solid var(--ink);
  padding-bottom:3px;
  transition:border-color .22s,color .22s;
}
.btn-link .arrow{transition:transform .22s cubic-bezier(.2,.7,.2,1);}
.btn-link:hover .arrow{transform:translateX(6px);}
.btn-link:hover{border-color:var(--accent);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,246,242,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .25s,box-shadow .25s,background .25s;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 4px 18px rgba(14,26,22,.05);
}
.nav-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:14px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.logo{
  display:inline-flex;
  flex-direction:column;
  line-height:1.1;
  text-decoration:none;
  flex:0 0 auto;
}
.logo-main{
  font-size:21px;
  font-weight:900;
  letter-spacing:-.02em;
  color:var(--ink);
}
.logo-sub{
  font-size:11px;
  letter-spacing:.18em;
  color:var(--muted);
  margin-top:4px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:30px;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--ink-70);
  padding:6px 0;
  text-decoration:none;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s cubic-bezier(.2,.7,.2,1);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:800;}
.nav-drawer-cta{display:none;}
.nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  background:#fff;
}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform .25s,opacity .25s;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  letter-spacing:.02em;
  color:rgba(247,246,242,.6);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(247,246,242,.78);text-decoration:none;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .current{color:rgba(247,246,242,.55);}
.breadcrumb .sep{color:rgba(247,246,242,.35);}

/* ============ 分类小首屏 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:#0E1A16 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#F7F6F2;
  padding:64px 0 76px;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,rgba(14,26,22,.94) 0%,rgba(14,26,22,.82) 52%,rgba(14,26,22,.62) 100%);
  pointer-events:none;
}
.page-hero .grid-container{position:relative;z-index:2;}
.hero-grid{align-items:flex-end;}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.1;
  color:#F7F6F2;
  margin-bottom:18px;
}
.page-hero .hero-lead{
  font-size:17px;
  line-height:1.75;
  color:rgba(247,246,242,.78);
  max-width:34em;
  margin:0;
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:flex-end;
}
.tag-pill{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid rgba(247,246,242,.3);
  background:rgba(247,246,242,.06);
  color:rgba(247,246,242,.85);
  font-size:13px;
  letter-spacing:.06em;
  white-space:nowrap;
}

/* ============ 板块通用 ============ */
.section{padding:96px 0;}
.section-alt{background:var(--paper-2);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:800;
  letter-spacing:.16em;
  color:var(--muted);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,2.8vw,36px);}
.section-sub{
  margin-top:14px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-70);
}

/* ============ 行式条目列表 ============ */
.feed-list{border-top:1px solid var(--line);}
.feed-item{border-bottom:1px solid var(--line);}
.feed-row{
  display:grid;
  grid-template-columns:56px 1fr auto;
  gap:20px;
  align-items:center;
  padding:22px 16px;
  text-decoration:none;
  color:var(--ink);
  transition:background .22s ease,padding-left .22s ease;
}
.feed-row:hover,.feed-row:focus-visible{background:var(--paper-2);}
.feed-num{
  font-size:13px;
  font-weight:800;
  letter-spacing:.08em;
  color:var(--ink-45);
  font-variant-numeric:tabular-nums;
}
.feed-body{min-width:0;}
.feed-title{
  display:block;
  font-size:17px;
  font-weight:800;
  line-height:1.45;
  margin-bottom:5px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.feed-desc{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
}
.feed-meta{
  display:flex;
  align-items:center;
  gap:16px;
  font-size:13px;
  color:var(--ink-45);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
  white-space:nowrap;
}
.feed-arrow{
  display:inline-block;
  font-size:16px;
  color:var(--ink-45);
  transition:transform .22s cubic-bezier(.2,.7,.2,1),color .22s;
}
.feed-row:hover .feed-arrow,.feed-row:focus-visible .feed-arrow{
  transform:translateX(6px);
  color:var(--ink);
}

/* ============ 图文说明块 ============ */
.figure{
  margin:0 0 24px;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--paper-2);
}
.figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .4s cubic-bezier(.2,.7,.2,1);
}
.figure:hover img{transform:scale(1.03);}
.prose h3{font-size:20px;margin-bottom:10px;}
.prose p{font-size:16px;line-height:1.9;color:var(--ink-70);}
.check-list{margin-top:20px;}
.check-list li{
  position:relative;
  padding-left:24px;
  margin-bottom:10px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-70);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:12px;
  height:2px;
  background:var(--accent);
  border-radius:2px;
}

/* ============ 数据横幅 ============ */
.stat-band{
  background:var(--ink);
  color:#F7F6F2;
  padding:64px 0;
}
.stat-band .stat-label{
  font-size:12px;
  letter-spacing:.16em;
  font-weight:800;
  color:rgba(247,246,242,.55);
  margin-bottom:26px;
}
.stat-num{
  display:block;
  font-size:clamp(28px,3.4vw,42px);
  font-weight:900;
  line-height:1;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  margin-bottom:12px;
}
.stat-num small{font-size:.42em;font-weight:800;margin-left:4px;letter-spacing:.04em;}
.stat-text{
  font-size:14px;
  line-height:1.7;
  color:rgba(247,246,242,.68);
  margin:0;
}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:20px 6px;
  text-align:left;
  font-size:16.5px;
  font-weight:700;
  line-height:1.55;
  color:var(--ink);
  transition:color .2s;
}
.faq-q:hover{color:var(--ink);}
.faq-icon{
  position:relative;
  flex:0 0 16px;
  width:16px;
  height:16px;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--ink);
  transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:1.5px;}
.faq-icon::after{top:0;left:7px;width:1.5px;height:16px;}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{padding:0 6px 24px;border-left:2px solid var(--accent);padding-left:16px;margin-left:2px;}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-70);margin:0;}

/* ============ 转化区 ============ */
.cta-box{
  background:var(--accent);
  border-radius:20px;
  padding:56px;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:44px;
  align-items:center;
}
.cta-box h2{
  font-size:clamp(24px,2.8vw,34px);
  color:var(--accent-ink);
  margin-bottom:14px;
}
.cta-box .cta-text{
  font-size:15px;
  line-height:1.8;
  color:rgba(14,26,22,.78);
  margin:0;
  max-width:30em;
}
.cta-form{display:flex;flex-wrap:wrap;gap:10px;}
.cta-form input{
  flex:1 1 220px;
  min-width:0;
  height:48px;
  padding:0 16px;
  border-radius:var(--radius-btn);
  border:1.5px solid rgba(14,26,22,.32);
  background:#FFFFFF;
  color:var(--ink);
  font-size:15px;
  transition:border-color .2s,box-shadow .2s;
}
.cta-form input::placeholder{color:var(--muted);}
.cta-form input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(14,26,22,.1);}
.cta-form input.is-error{border-color:#B4462F;box-shadow:0 0 0 3px rgba(180,70,47,.16);}
.form-msg{
  flex:1 1 100%;
  font-size:13px;
  line-height:1.6;
  color:rgba(14,26,22,.72);
  min-height:20px;
  margin:0;
}
.form-msg.is-error{color:#9E3A24;font-weight:700;}
.form-msg.is-ok{color:#1C4A2A;font-weight:700;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:#F7F6F2;
  padding:76px 0 28px;
}
.footer-logo .logo-main{color:#F7F6F2;}
.footer-logo .logo-sub{color:rgba(247,246,242,.55);}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:rgba(247,246,242,.62);
  max-width:24em;
}
.footer-col h4{
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  color:#F7F6F2;
  margin-bottom:16px;
}
.footer-col ul li{
  font-size:14px;
  line-height:1.8;
  color:rgba(247,246,242,.62);
  margin-bottom:9px;
  word-break:break-word;
}
.footer-col ul li a{
  color:rgba(247,246,242,.78);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s,border-color .2s;
}
.footer-col ul li a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(247,246,242,.15);
  display:flex;
  flex-wrap:wrap;
  gap:10px 28px;
  justify-content:space-between;
  font-size:13px;
  line-height:1.8;
  color:rgba(247,246,242,.5);
}

/* ============ 移动端固定转化条 ============ */
.mobile-bar{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:70;
  display:none;
  align-items:center;
  gap:12px;
  padding:12px 16px;
  background:var(--ink);
  border-top:1px solid rgba(247,246,242,.14);
}
.mobile-bar .btn{flex:1 1 auto;}
.mobile-bar-close{
  flex:0 0 38px;
  width:38px;
  height:38px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(247,246,242,.28);
  color:#F7F6F2;
  font-size:18px;
  line-height:1;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:background .2s,color .2s;
}
.mobile-bar-close:hover{background:rgba(247,246,242,.12);color:var(--accent);}
.mobile-bar.is-hidden{display:none;}

/* ============ 入场动效 ============ */
.will-reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s cubic-bezier(.2,.7,.2,1),transform .5s cubic-bezier(.2,.7,.2,1);
}
.will-reveal.is-visible{opacity:1;transform:none;}
.hero-in{animation:heroIn .5s cubic-bezier(.2,.7,.2,1) both;}
.hero-in.d1{animation-delay:.08s;}
.hero-in.d2{animation-delay:.16s;}
@keyframes heroIn{
  from{opacity:0;transform:translateY(12px);}
  to{opacity:1;transform:none;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .will-reveal{opacity:1;transform:none;}
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .section{padding:88px 0;}
}
@media (max-width:1023px){
  .nav-links{
    position:fixed;
    top:var(--header-h);
    left:0;
    right:0;
    bottom:0;
    background:var(--paper);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:20px 24px 40px;
    overflow-y:auto;
    opacity:0;
    transform:translateY(-8px);
    pointer-events:none;
    transition:opacity .25s ease,transform .25s ease;
    border-top:1px solid var(--line);
  }
  .nav-links.is-open{opacity:1;transform:none;pointer-events:auto;}
  .nav-link{
    padding:18px 2px;
    font-size:18px;
    border-bottom:1px solid var(--line);
  }
  .nav-link::after{display:none;}
  .nav-drawer-cta{display:block;margin-top:26px;}
  .nav-drawer-cta .btn{width:100%;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .page-hero{padding:48px 0 60px;}
  .tag-row{justify-content:flex-start;margin-top:24px;}
  .section{padding:72px 0;}
  .cta-box{grid-template-columns:1fr;gap:28px;padding:40px;}
}
@media (max-width:767px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .nav-inner{padding:12px 20px;}
  .logo-main{font-size:19px;}
  .feed-row{
    grid-template-columns:36px 1fr;
    gap:12px;
    padding:18px 8px;
    align-items:start;
  }
  .feed-title{white-space:normal;}
  .feed-meta{grid-column:2;justify-content:flex-start;gap:12px;margin-top:8px;}
  .stat-band{padding:48px 0;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .mobile-bar{display:flex;}
  .site-footer{padding-bottom:110px;}
}
@media (max-width:520px){
  .section{padding:56px 0;}
  .btn{height:44px;padding:0 18px;font-size:14px;}
  .cta-box{padding:28px 22px;border-radius:16px;}
  .faq-q{font-size:16px;padding:18px 4px;}
  .breadcrumb{font-size:12px;}
}

/* roulang page: category2 */
:root{
  --ink:#0E1A16;
  --ink-70:rgba(14,26,22,.70);
  --ink-45:rgba(14,26,22,.45);
  --paper:#F7F6F2;
  --paper-2:#EFEDE6;
  --accent:#C6F03C;
  --accent-ink:#0E1A16;
  --line:#DAD6CB;
  --muted:#6C746E;
  --radius-card:14px;
  --radius-btn:8px;
  --shadow-hover:0 8px 24px rgba(14,26,22,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;text-underline-offset:3px;}
a:hover{color:var(--ink);}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.2;color:var(--ink);}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.12;font-weight:900;}
h2{font-size:clamp(24px,2.8vw,36px);}
h3{font-size:20px;line-height:1.35;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}

.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;width:100%;}
.gap-24{gap:var(--gap);}
.gap-32{gap:32px;}
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
  text-align:center;line-height:1;
}
.btn:hover,.btn:focus{text-decoration:none;}
.btn-primary{background:var(--accent);color:var(--accent-ink);}
.btn-primary:hover{background:var(--ink);color:var(--accent);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-inverse{background:transparent;color:var(--paper);border-color:rgba(247,246,242,.55);}
.btn-inverse:hover{background:var(--paper);color:var(--ink);border-color:var(--paper);}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:var(--ink);position:relative;}
.link-arrow::after{content:"→";transition:transform .22s var(--ease);}
.link-arrow:hover::after{transform:translateX(6px);}
.link-arrow span{border-bottom:1.5px solid var(--line);padding-bottom:2px;transition:border-color .22s var(--ease);}
.link-arrow:hover span{border-color:var(--ink);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-scrolled{border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(14,26,22,.05);background:rgba(247,246,242,.97);}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{display:inline-flex;flex-direction:column;gap:2px;line-height:1;}
.logo-main{font-size:21px;font-weight:900;letter-spacing:-.01em;color:var(--ink);}
.logo-sub{font-size:11px;letter-spacing:.18em;color:var(--muted);font-weight:600;}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-70);
  padding:6px 0;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--ink);transition:width .24s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);font-weight:800;}
.nav-link.is-active::after{width:100%;background:var(--accent);}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-drawer-cta{display:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:transparent;
  border-radius:var(--radius-btn);cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:1.5px;background:var(--ink);transition:transform .24s var(--ease),opacity .2s 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);}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;letter-spacing:.02em;color:var(--ink-45);}
.breadcrumb a{color:var(--ink-70);border-bottom:1px solid transparent;transition:border-color .2s var(--ease),color .2s var(--ease);}
.breadcrumb a:hover{color:var(--ink);border-color:var(--ink);}
.breadcrumb .sep{color:var(--ink-45);}
.breadcrumb .current{color:var(--ink);font-weight:700;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:var(--paper);
  background-image:linear-gradient(100deg,rgba(14,26,22,.94) 0%,rgba(14,26,22,.80) 46%,rgba(14,26,22,.52) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:64px 0 68px;
}
.page-hero .breadcrumb{color:rgba(247,246,242,.65);}
.page-hero .breadcrumb a{color:rgba(247,246,242,.85);}
.page-hero .breadcrumb a:hover{color:var(--accent);border-color:var(--accent);}
.page-hero .breadcrumb .current{color:var(--accent);}
.page-hero .breadcrumb .sep{color:rgba(247,246,242,.4);}
.hero-grid{display:grid;grid-template-columns:1.5fr .9fr;gap:48px;align-items:end;margin-top:28px;}
.page-hero h1{color:#fff;margin-bottom:18px;max-width:16em;}
.page-hero .hero-lead{font-size:16px;line-height:1.85;color:rgba(247,246,242,.78);max-width:34em;margin:0;}
.tag-cluster{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;}
.tag-pill{
  display:inline-flex;align-items:center;height:34px;padding:0 15px;
  border:1px solid rgba(247,246,242,.32);border-radius:999px;
  font-size:12.5px;letter-spacing:.06em;color:rgba(247,246,242,.86);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.tag-pill:hover{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);}

/* ---------- layout with sticky anchors ---------- */
.guide-wrap{padding:72px 0 40px;}
.anchor-col{position:sticky;top:100px;align-self:start;}
.anchor-title{font-size:12px;letter-spacing:.12em;color:var(--ink-45);font-weight:700;margin-bottom:16px;}
.anchor-nav li + li{margin-top:2px;}
.anchor-nav a{
  display:block;padding:10px 0 10px 16px;font-size:14.5px;font-weight:600;
  color:var(--ink-70);border-left:2px solid var(--line);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.anchor-nav a:hover{color:var(--ink);border-left-color:var(--ink);background:var(--paper-2);}
.anchor-nav a.is-current{color:var(--ink);border-left-color:var(--accent);font-weight:800;}
.anchor-note{
  margin-top:24px;padding:16px;border:1px solid var(--line);border-radius:var(--radius-card);
  font-size:13px;line-height:1.75;color:var(--muted);background:var(--paper-2);
}

/* ---------- feature sections ---------- */
.feat-block{padding:0 0 56px;margin-bottom:56px;border-bottom:1px solid var(--line);}
.feat-block:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:16px;}
.feat-head{display:flex;align-items:flex-start;gap:18px;margin-bottom:18px;}
.feat-num{
  flex:0 0 auto;width:44px;height:44px;border-radius:10px;background:var(--ink);
  color:var(--accent);font-size:15px;font-weight:900;letter-spacing:.04em;
  display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.feat-head h2{font-size:clamp(22px,2.3vw,30px);}
.feat-kicker{font-size:12px;letter-spacing:.12em;color:var(--muted);font-weight:700;margin:6px 0 0;}
.feat-block p{color:var(--ink-70);font-size:15.5px;line-height:1.9;max-width:44em;}
.feat-list{margin:18px 0 20px;}
.feat-list li{
  position:relative;padding:11px 0 11px 20px;font-size:15px;color:var(--ink-70);
  border-top:1px solid var(--line);
}
.feat-list li:last-child{border-bottom:1px solid var(--line);}
.feat-list li::before{
  content:"";position:absolute;left:0;top:20px;width:7px;height:7px;border-radius:2px;background:var(--accent);
}
.feat-list strong{color:var(--ink);font-weight:800;}
.feat-media{margin-top:22px;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:var(--paper-2);}
.feat-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease);}
.feat-media:hover img{transform:scale(1.02);}

/* ---------- dark stat banner ---------- */
.stat-banner{
  background:var(--ink);color:var(--paper);border-radius:18px;
  padding:44px 40px;margin:8px 0 72px;
}
.stat-banner .banner-label{font-size:12px;letter-spacing:.14em;color:rgba(247,246,242,.55);font-weight:700;margin-bottom:22px;}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.stat-item{border-left:1px solid rgba(247,246,242,.18);padding-left:20px;}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-value{font-size:clamp(28px,3vw,40px);font-weight:900;color:var(--accent);line-height:1.05;font-variant-numeric:tabular-nums;}
.stat-value small{font-size:15px;font-weight:700;margin-left:3px;color:var(--accent);}
.stat-desc{font-size:13.5px;color:rgba(247,246,242,.7);margin-top:8px;line-height:1.7;}

/* ---------- scenarios ---------- */
.scene-row{display:grid;grid-template-columns:.9fr 2.1fr;gap:40px;align-items:start;padding-bottom:8px;}
.scene-item{
  display:grid;grid-template-columns:180px 1fr auto;gap:24px;align-items:center;
  padding:20px 0;border-top:1px solid var(--line);transition:background .22s var(--ease);
}
.scene-item:last-child{border-bottom:1px solid var(--line);}
.scene-item:hover{background:var(--paper-2);}
.scene-item h3{font-size:17px;margin-bottom:4px;}
.scene-item p{margin:0;font-size:14px;color:var(--ink-70);line-height:1.8;}
.scene-tag{
  font-size:12px;letter-spacing:.06em;font-weight:700;color:var(--ink);
  background:var(--paper-2);border:1px solid var(--line);border-radius:999px;
  padding:4px 12px;justify-self:start;
}
.scene-arrow{color:var(--ink-45);font-size:18px;transition:transform .22s var(--ease),color .22s var(--ease);}
.scene-item:hover .scene-arrow{transform:translateX(6px);color:var(--ink);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 20px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.step:hover{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.step-index{
  width:34px;height:34px;border-radius:50%;background:var(--accent);color:var(--accent-ink);
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:14px;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{font-size:13.5px;color:var(--ink-70);line-height:1.75;margin:0;}

/* ---------- faq ---------- */
.faq-block{background:var(--paper-2);border-radius:18px;padding:56px 48px;}
.faq-grid{display:grid;grid-template-columns:1fr 1.7fr;gap:48px;align-items:start;}
.faq-intro p{color:var(--ink-70);font-size:15px;line-height:1.85;margin-top:16px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:20px 0;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.5;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--ink);}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:1px;transition:transform .24s var(--ease),background .2s var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:1.5px;}
.faq-icon::after{left:8.25px;top:0;width:1.5px;height:18px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg) scaleX(0);}
.faq-item.is-open .faq-icon::before{background:var(--ink);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{
  font-size:15px;line-height:1.9;color:var(--ink-70);margin:0;padding:0 0 22px 14px;
  border-left:2px solid var(--accent);
}
.faq-item.is-open .faq-a{max-height:420px;}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--ink);color:var(--paper);border-radius:20px;padding:56px 48px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(247,246,242,.72);font-size:15px;line-height:1.85;margin:0;max-width:32em;}
.lead-form{display:flex;flex-direction:column;gap:10px;}
.lead-row{display:flex;gap:12px;}
.lead-row input[type="text"]{
  flex:1 1 auto;min-width:0;height:48px;padding:0 16px;border-radius:var(--radius-btn);
  border:1.5px solid rgba(247,246,242,.28);background:rgba(247,246,242,.06);color:#fff;
  font-size:15px;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.lead-row input[type="text"]::placeholder{color:rgba(247,246,242,.45);}
.lead-row input[type="text"]:focus{outline:none;border-color:var(--accent);background:rgba(247,246,242,.1);}
.lead-row input.is-error{border-color:#E4766B;}
.form-hint{font-size:12.5px;color:rgba(247,246,242,.5);line-height:1.7;margin:0;}
.form-error{display:none;font-size:12.5px;color:#F2A199;margin:0;}
.form-error.is-visible{display:block;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(247,246,242,.72);padding:72px 0 32px;margin-top:96px;}
.site-footer .grid-container{padding-left:24px;padding-right:24px;}
.footer-logo{margin-bottom:16px;}
.footer-logo .logo-main{color:#fff;}
.footer-logo .logo-sub{color:rgba(247,246,242,.5);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(247,246,242,.62);margin:0;max-width:22em;}
.footer-col h4{font-size:13px;letter-spacing:.1em;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-col ul li{font-size:14px;line-height:1.8;color:rgba(247,246,242,.62);margin-bottom:10px;}
.footer-col ul li a{color:rgba(247,246,242,.72);position:relative;transition:color .2s var(--ease);}
.footer-col ul li a::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--accent);transition:width .22s var(--ease);
}
.footer-col ul li a:hover{color:var(--accent);}
.footer-col ul li a:hover::after{width:100%;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(247,246,242,.14);
  display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;
  font-size:12.5px;color:rgba(247,246,242,.45);line-height:1.8;
}
.footer-bottom a{color:rgba(247,246,242,.6);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- mobile bar ---------- */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--ink);padding:12px 20px;align-items:center;gap:12px;
  box-shadow:0 -6px 20px rgba(14,26,22,.18);
}
.mobile-bar .btn{flex:1 1 auto;}
.mobile-bar-close{
  flex:0 0 auto;width:36px;height:36px;border-radius:50%;border:1px solid rgba(247,246,242,.3);
  background:transparent;color:rgba(247,246,242,.7);font-size:18px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:color .2s var(--ease),border-color .2s var(--ease);
}
.mobile-bar-close:hover{color:var(--accent);border-color:var(--accent);}
.mobile-bar.is-hidden{display:none !important;}

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

/* ---------- responsive ---------- */
@media screen and (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:28px;align-items:start;}
  .tag-cluster{justify-content:flex-start;}
  .anchor-col{position:static;margin-bottom:32px;}
  .anchor-nav{display:flex;flex-wrap:wrap;gap:8px;}
  .anchor-nav li + li{margin-top:0;}
  .anchor-nav a{border-left:0;border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:13.5px;background:#fff;}
  .anchor-nav a:hover,.anchor-nav a.is-current{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);}
  .anchor-note{display:none;}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:24px;}
  .stat-item:nth-child(odd){border-left:0;padding-left:0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:44px 36px;}
  .scene-row{grid-template-columns:1fr;gap:20px;}
}
@media screen and (max-width:767px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .nav-inner{height:66px;padding:0 20px;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;top:66px;left:0;right:0;bottom:0;
    background:var(--paper);padding:20px;flex-direction:column;align-items:stretch;gap:0;
    transform:translateY(-8px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
    overflow-y:auto;z-index:55;
  }
  .nav-links.is-open{opacity:1;transform:none;visibility:visible;pointer-events:auto;}
  .nav-link{font-size:18px;font-weight:700;padding:18px 0;border-bottom:1px solid var(--line);color:var(--ink);}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--ink);}
  .nav-drawer-cta{display:block;margin-top:24px;}
  .nav-drawer-cta .btn{width:100%;}
  body.nav-open{overflow:hidden;}
  .page-hero{padding:44px 0 48px;}
  .page-hero h1{font-size:clamp(26px,7vw,34px);}
  .hero-lead{font-size:15px;}
  .guide-wrap{padding:40px 0 24px;}
  .section{padding:56px 0;}
  .feat-block{padding-bottom:40px;margin-bottom:40px;}
  .feat-head{gap:14px;}
  .feat-num{width:38px;height:38px;font-size:13px;}
  .stat-banner{padding:32px 24px;margin-bottom:48px;}
  .stat-row{grid-template-columns:1fr;gap:20px;}
  .stat-item{border-left:0;padding-left:0;padding-top:16px;border-top:1px solid rgba(247,246,242,.16);}
  .stat-item:first-child{padding-top:0;border-top:0;}
  .scene-item{grid-template-columns:1fr;gap:8px;padding:18px 0;}
  .scene-arrow{display:none;}
  .steps{grid-template-columns:1fr;}
  .faq-block{padding:36px 22px;}
  .faq-q{font-size:15.5px;padding:18px 0;}
  .cta-band{padding:36px 22px;border-radius:16px;}
  .lead-row{flex-direction:column;}
  .lead-row .btn{width:100%;}
  .footer-col{margin-bottom:8px;}
  .site-footer{padding:52px 0 28px;margin-top:64px;}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:36px;}
  .mobile-bar{display:flex;}
  body{padding-bottom:76px;}
  .reveal{opacity:1;transform:none;}
}
@media screen and (max-width:519px){
  .tag-pill{font-size:11.5px;height:30px;padding:0 12px;}
  .scene-tag{font-size:11px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}