/* roulang page: index */
:root{
  --ink:#10312C;
  --ink-deep:#0B231F;
  --ink-soft:#1C4A42;
  --clay:#C9613C;
  --brass:#B9A88A;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --tint:#EDF3F1;
  --text:#1A1D1C;
  --muted:#5C635F;
  --line:#E2DED6;
  --radius:6px;
  --radius-sm:4px;
  --shadow-hover:0 20px 40px -28px rgba(16,49,44,.35);
  --sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"IBM Plex Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--sans);font-size:16px;line-height:1.85;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(201,97,60,.28);border-radius:4px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
@media (max-width:1024px){
  .wrap{padding:0 24px;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
}
@media (max-width:640px){
  .wrap{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease,background .25s ease;}
.site-header.scrolled{box-shadow:0 6px 20px -16px rgba(16,49,44,.4);}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;transition:height .25s ease;}
.site-header.scrolled .header-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;min-height:44px;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.brand-mark{width:24px;height:24px;flex-shrink:0;color:var(--ink);}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:6px;}
.nav-link{position:relative;display:inline-flex;align-items:center;min-height:44px;font-size:15px;color:var(--muted);transition:color .2s ease;}
.nav-link:hover{color:var(--ink);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:0;bottom:12px;width:20px;height:2px;background:var(--ink);border-radius:2px;}
.header-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.search-box{display:flex;align-items:center;gap:8px;height:40px;width:220px;padding:0 14px;border-radius:999px;background:#F1EEE8;border:1.5px solid transparent;transition:width .25s ease,background .25s ease,border-color .25s ease;}
.search-box:focus-within{background:#fff;border-color:var(--ink);width:280px;}
.search-box input{border:0;background:transparent;outline:none;font-size:14px;color:var(--text);width:100%;height:100%;font-family:var(--sans);}
.search-box input::placeholder{color:#8A908C;}
.search-box svg{width:16px;height:16px;color:#8A908C;flex-shrink:0;}
.menu-btn{display:none;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--ink);}
@media (max-width:1023px){
  .main-nav{display:none;}
  .search-box{display:none;}
  .menu-btn{display:inline-flex;}
}
@media (max-width:520px){
  .header-right .btn-consult{display:none;}
  .brand-text{font-size:15px;}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;font-size:15px;font-weight:600;letter-spacing:.02em;border-radius:var(--radius-sm);border:1px solid transparent;transition:background .22s ease,color .22s ease,transform .22s ease,border-color .22s ease;white-space:nowrap;}
.btn-pill{border-radius:999px;}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:var(--clay);transform:translateY(-1px);}
.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;}
.btn-clay{background:var(--clay);color:#fff;}
.btn-clay:hover{background:#B4532F;transform:translateY(-1px);}
.btn-light-ghost{background:transparent;color:#F6F4EF;border-color:rgba(246,244,239,.55);}
.btn-light-ghost:hover{background:rgba(246,244,239,.14);border-color:#F6F4EF;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);position:relative;min-height:44px;}
.text-link::after{content:"";position:absolute;left:0;bottom:8px;width:0;height:1px;background:var(--ink);transition:width .22s ease;}
.text-link:hover::after{width:100%;}
.text-link:hover{gap:10px;}

/* ---------- mobile drawer ---------- */
.mobile-drawer{position:fixed;inset:0;z-index:90;background:#fff;display:flex;flex-direction:column;padding:20px;overflow-y:auto;transform:translateX(100%);transition:transform .3s cubic-bezier(.22,.61,.36,1);}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-close{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--ink);}
.drawer-nav{display:flex;flex-direction:column;margin:20px 0 28px;}
.drawer-link{display:flex;align-items:center;justify-content:space-between;min-height:56px;padding:0 4px;font-size:17px;color:var(--text);border-bottom:1px solid var(--line);}
.drawer-link.active{color:var(--ink);font-weight:700;}
.drawer-link span{font-family:var(--mono);font-size:12px;color:var(--brass);}
.drawer-cta{width:100%;height:48px;border-radius:999px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 84px;background:var(--bg);}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(115deg,rgba(16,49,44,.055) 0 1px,transparent 1px 24px);opacity:.55;}
.hero-inner{position:relative;display:grid;grid-template-columns:1.32fr 1fr;gap:52px;align-items:center;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border:1px solid var(--line);border-radius:999px;font-size:13px;letter-spacing:.04em;color:var(--ink);background:#fff;font-family:var(--mono);}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--clay);display:inline-block;}
.hero h1{margin-top:22px;font-size:clamp(38px,5.6vw,68px);line-height:1.08;font-weight:800;letter-spacing:-.02em;color:var(--ink);}
.hero-sub{margin-top:22px;max-width:560px;font-size:17px;line-height:1.8;color:var(--muted);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line);}
.stat-num{font-family:var(--mono);font-size:22px;font-weight:600;color:var(--ink);letter-spacing:-.01em;line-height:1.3;}
.stat-label{font-size:13px;color:var(--muted);letter-spacing:.02em;}
.hero-figure{position:relative;padding:12px 12px 12px 12px;}
.hero-figure .frame{position:absolute;inset:0;border:1px solid rgba(201,97,60,.55);border-radius:8px;pointer-events:none;}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);}
@media (max-width:1023px){
  .hero-inner{grid-template-columns:1fr;gap:44px;}
  .hero{padding:52px 0 64px;}
  .hero-figure{max-width:620px;}
}
@media (max-width:520px){
  .hero-stats{gap:28px;}
  .hero-actions .btn{flex:1 1 100%;}
}

/* ---------- pillars ---------- */
.pillars-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:.14em;color:var(--clay);text-transform:uppercase;}
.h2{font-size:clamp(26px,3.2vw,40px);line-height:1.25;font-weight:700;color:var(--ink);letter-spacing:-.01em;}
.lead{font-size:16px;line-height:1.85;color:var(--muted);max-width:640px;}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);}
.pillar{padding:32px 28px 30px;border-bottom:1px solid var(--brass);transition:transform .25s ease;position:relative;}
.pillar + .pillar{border-left:1px solid var(--line);}
.pillar:hover{transform:translateY(-2px);}
.pillar-num{font-family:var(--mono);font-size:14px;letter-spacing:.08em;color:var(--clay);transition:color .2s ease;}
.pillar:hover .pillar-num{color:var(--ink);}
.pillar h3{margin-top:12px;font-size:20px;line-height:1.4;font-weight:600;color:var(--ink);}
.pillar p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--muted);}
@media (max-width:1023px){
  .pillars{grid-template-columns:1fr;}
  .pillar + .pillar{border-left:0;}
}

/* ---------- scenes ---------- */
.scene-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.scene-sticky{position:sticky;top:96px;align-self:start;}
.scene-cards{display:flex;flex-direction:column;gap:28px;}
.scene-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--ink);}
.scene-cards > .scene-card:nth-child(2){margin-left:32px;}
.scene-cards > .scene-card:nth-child(3){margin-right:24px;}
.scene-media{overflow:hidden;background:var(--tint);}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease;}
.scene-card:hover .scene-media img{transform:scale(1.03);}
.scene-body{padding:20px 22px 22px;}
.badge{display:inline-block;padding:5px 12px;border-radius:999px;background:#E8F0EE;color:var(--ink);font-size:12px;letter-spacing:.04em;line-height:1.5;}
.badge-clay{background:rgba(201,97,60,.13);color:#A9482A;}
.scene-body p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--muted);}
.scene-link{margin-top:14px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);}
.scene-card:hover .scene-link{gap:10px;}
@media (max-width:1023px){
  .scene-grid{grid-template-columns:1fr;gap:36px;}
  .scene-sticky{position:static;}
  .scene-cards > .scene-card:nth-child(2),
  .scene-cards > .scene-card:nth-child(3){margin-left:0;margin-right:0;}
}

/* ---------- cms posts ---------- */
.posts-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--ink);}
.post-thumb{overflow:hidden;background:var(--tint);}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.post-title{margin-top:12px;font-size:18px;line-height:1.45;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-summary{margin-top:10px;font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);}
.post-date{font-family:var(--mono);font-size:13px;color:#8A908C;letter-spacing:.04em;}
.post-arrow{font-size:14px;color:var(--ink);}
.empty-state{border:1px dashed var(--line);border-radius:var(--radius);padding:48px 24px;text-align:center;background:var(--card);}
.empty-state p{font-size:15px;color:var(--muted);}
.empty-state .btn{margin-top:20px;}
@media (max-width:1023px){
  .post-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:640px){
  .post-grid{grid-template-columns:1fr;}
}

/* ---------- proof ---------- */
.proof{background:var(--tint);}
.logo-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;padding-bottom:36px;border-bottom:1px solid rgba(16,49,44,.12);}
.logo-item{font-family:var(--mono);font-size:14px;letter-spacing:.08em;color:var(--ink);opacity:.55;transition:opacity .25s ease;}
.logo-item:hover{opacity:1;}
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:44px;}
.quote{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;}
.quote-mark{font-family:var(--mono);font-size:40px;line-height:1;color:var(--clay);}
.quote p{margin-top:8px;font-size:15px;line-height:1.9;color:var(--text);}
.quote cite{display:block;margin-top:16px;font-style:normal;font-size:13px;color:var(--muted);letter-spacing:.02em;}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);margin-top:44px;border-top:1px solid rgba(16,49,44,.12);}
.metric{padding:26px 20px 6px;border-left:1px solid rgba(16,49,44,.12);}
.metric:first-child{border-left:0;padding-left:0;}
.metric-num{font-family:var(--mono);font-size:28px;font-weight:600;color:var(--ink);line-height:1.2;}
.metric-label{margin-top:6px;font-size:13px;color:var(--muted);}
@media (max-width:1023px){
  .quote-grid{grid-template-columns:1fr;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:520px){
  .metrics{grid-template-columns:1fr;}
  .metric{border-left:0;padding-left:0;}
}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:between;gap:16px;min-height:64px;padding:16px 0;background:transparent;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--ink);font-family:var(--sans);line-height:1.6;}
.faq-q .q-text{flex:1;}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0;transition:transform .25s ease;color:var(--clay);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:1px;}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 0 22px;font-size:15px;line-height:1.9;color:var(--muted);max-width:640px;}
@media (max-width:1023px){
  .faq-grid{grid-template-columns:1fr;gap:32px;}
}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);color:#F6F4EF;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;padding:64px 0;}
.cta-band h2{font-size:clamp(24px,3vw,36px);line-height:1.3;font-weight:700;color:#F6F4EF;max-width:560px;}
.cta-band p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(246,244,239,.75);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- footer ---------- */
.site-footer{background:#0F2A26;color:#F6F4EF;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px;}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand .brand-text{color:#F6F4EF;}
.footer-brand .brand-mark{color:#F6F4EF;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:#CFD8D4;max-width:280px;}
.footer-contact{margin-top:18px;font-size:14px;line-height:2;color:#CFD8D4;}
.footer-contact strong{font-family:var(--mono);color:#F6F4EF;font-weight:600;}
.footer-title{font-family:var(--mono);font-size:13px;letter-spacing:.1em;color:var(--clay);margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:6px;}
.footer-links a{display:inline-block;font-size:14px;line-height:2;color:#CFD8D4;transition:color .2s ease,transform .2s ease;}
.footer-links a:hover{color:var(--clay);transform:translateX(2px);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;font-size:13px;color:#9FB3AD;}
.footer-bottom .mono{font-family:var(--mono);letter-spacing:.04em;}
.to-top{display:inline-flex;align-items:center;gap:6px;min-height:44px;color:#CFD8D4;font-size:13px;transition:color .2s ease;}
.to-top:hover{color:var(--clay);}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
}

/* ---------- sticky bar ---------- */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fff;border-top:1px solid var(--ink);padding:10px 16px calc(10px + env(safe-area-inset-bottom));min-height:56px;}
.sticky-bar p{font-size:13px;line-height:1.5;color:var(--muted);}
.sticky-bar .btn{height:40px;padding:0 18px;font-size:14px;flex-shrink:0;}
@media (max-width:1023px){
  body{padding-bottom:72px;}
}
@media (min-width:1024px){
  .sticky-bar{transform:translateY(130%);transition:transform .3s cubic-bezier(.22,.61,.36,1);height:64px;padding:0 32px;box-shadow:0 -12px 30px -24px rgba(16,49,44,.6);}
  .sticky-bar.show{transform:translateY(0);}
  .sticky-bar p{font-size:14px;}
  .sticky-bar .btn{height:44px;padding:0 24px;font-size:15px;}
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation:none !important;transition-duration:.001ms !important;}
}

/* roulang page: article */
:root{
  --ink:#10312C;
  --ink-deep:#0B231F;
  --ink-soft:#1C4A42;
  --clay:#C9613C;
  --brass:#B9A88A;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --wash:#EDF3F1;
  --text:#1A1D1C;
  --muted:#5C635F;
  --line:#E2DED6;
  --r-card:6px;
  --r-input:4px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"IBM Plex Mono","SFMono-Regular",Menlo,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{list-style:none;padding:0}
::selection{background:rgba(201,97,60,.22)}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(201,97,60,.28);border-radius:4px}

.wrap{max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;width:100%}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -16px rgba(16,49,44,.42)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;padding:4px 0}
.brand-mark{width:24px;height:24px;color:var(--ink);flex:0 0 auto}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;font-size:15px;color:#3A4641;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink);font-weight:600}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:220px;
  padding:0 14px;border-radius:999px;background:#F1EEE8;
  border:1.5px solid transparent;transition:width .25s ease,background .2s ease,border-color .2s ease;
}
.search-box:focus-within{width:280px;background:#fff;border-color:var(--ink)}
.search-box svg{width:16px;height:16px;color:var(--muted);flex:0 0 auto}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:#8A928D}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:6px;border:1px solid var(--line);
  background:#fff;color:var(--ink);
}
.menu-toggle:hover{border-color:var(--ink)}
.drawer{display:none}
.drawer-link{
  display:flex;align-items:center;min-height:48px;font-size:16px;
  color:var(--ink);border-bottom:1px solid var(--line);
}
.drawer-cta{margin-top:16px;width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-input);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--clay);transform:translateY(-1px)}
.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}
.btn-pill{border-radius:999px;min-height:44px;padding:0 22px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--brass);padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.text-link:hover{color:var(--clay);border-color:var(--clay);transform:translateX(2px)}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding-top:26px;font-size:13px;font-family:var(--font-mono);
  letter-spacing:.04em;color:var(--muted);
}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover{color:var(--clay)}
.breadcrumb .sep{color:var(--brass)}
.breadcrumb .current{
  color:var(--ink);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- article head ---------- */
.article-hero{padding:18px 0 34px}
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  background:#E8F0EE;color:var(--ink);font-size:12px;
  padding:6px 12px;letter-spacing:.02em;line-height:1.5;
}
.badge-clay{background:#F7E6DE;color:#9C3F1F}
.article-title{
  margin-top:18px;font-size:clamp(30px,4vw,42px);line-height:1.25;
  font-weight:800;letter-spacing:-.02em;color:var(--ink);max-width:24ch;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;
  margin-top:20px;font-family:var(--font-mono);font-size:13px;
  letter-spacing:.04em;color:var(--muted);
}
.article-meta .meta-sep{color:var(--brass)}
.article-divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:56px;padding:48px 0 64px;align-items:start;
}
.article-main{min-width:0}

/* ---------- article body ---------- */
.article-body{
  max-width:720px;font-size:16.5px;line-height:1.95;color:#232A27;
  overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  font-size:24px;line-height:1.42;font-weight:700;color:var(--ink);
  margin:2em 0 .8em;padding-left:14px;border-left:3px solid var(--clay);
}
.article-body h3{
  font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);
  margin:1.8em 0 .6em;
}
.article-body h4{
  font-size:16.5px;font-weight:600;color:var(--ink);margin:1.5em 0 .5em;
}
.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:2px;top:.92em;
  width:10px;height:1.5px;background:var(--clay);
}
.article-body ol{counter-reset:item;margin:0 0 1.4em}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:.6em;counter-increment:item}
.article-body ol li::before{
  content:counter(item,decimal-leading-zero);position:absolute;left:0;top:.12em;
  font-family:var(--font-mono);font-size:13px;color:var(--clay);
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--ink);
  background:var(--paper);border-radius:0 6px 6px 0;color:#3A4641;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:6px;margin:1.6em 0;width:100%}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;line-height:1.7}
.article-body table{
  width:100%;border-collapse:collapse;font-size:14px;margin:1.6em 0;
  border:1px solid var(--line);border-radius:6px;overflow:hidden;
}
.article-body th{background:var(--wash);font-weight:600;text-align:left;color:var(--ink)}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:10px 12px}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body code{
  font-family:var(--font-mono);font-size:14px;background:var(--wash);
  padding:2px 6px;border-radius:4px;
}
.article-body pre{
  background:var(--ink-deep);color:#E7EFEC;padding:16px 18px;border-radius:6px;
  overflow-x:auto;font-size:13.5px;line-height:1.75;margin:1.6em 0;
}
.article-body pre code{background:none;color:inherit;padding:0;font-size:inherit}
.article-body a{color:var(--ink);border-bottom:1px solid var(--brass);transition:color .2s ease,border-color .2s ease}
.article-body a:hover{color:var(--clay);border-color:var(--clay)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* ---------- article footer ---------- */
.article-foot{margin-top:44px;padding-top:24px;border-top:1px solid var(--line);max-width:720px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;border-radius:999px;
  background:#E8F0EE;color:var(--ink);font-size:12px;padding:6px 12px;line-height:1.5;
}
.article-foot-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}

/* ---------- empty state ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:6px;padding:48px 32px;
  text-align:center;background:#fff;
}
.empty-state h2{font-size:22px;font-weight:700;color:var(--ink);margin-bottom:12px}
.empty-state p{font-size:15px;color:var(--muted);line-height:1.8;margin-bottom:24px}

/* ---------- sidebar ---------- */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.side-card:hover{border-color:var(--ink);box-shadow:0 20px 40px -28px rgba(16,49,44,.35);transform:translateY(-2px)}
.side-title{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;
  color:var(--ink);margin-bottom:16px;font-weight:600;
}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list a{
  display:flex;gap:10px;font-size:15px;line-height:1.55;color:#2A3330;
  transition:color .2s ease,transform .2s ease;
}
.side-list a:hover{color:var(--clay);transform:translateX(2px)}
.side-list .idx{
  flex:0 0 auto;font-family:var(--font-mono);font-size:12px;color:var(--clay);
  letter-spacing:.04em;padding-top:3px;
}
.side-note{background:var(--wash);border:1px solid #DDE8E4}
.side-note p{font-size:14px;line-height:1.8;color:#3A4641;margin-bottom:16px}
.side-note .btn{width:100%}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);color:#fff;padding:64px 0}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:28px;
}
.cta-inner h2{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.cta-inner p{margin-top:12px;font-size:15px;line-height:1.8;color:#C6D4CF;max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn-primary{background:var(--clay)}
.cta-actions .btn-primary:hover{background:#B4532F}
.cta-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55)}
.cta-actions .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}

/* ---------- footer ---------- */
.site-footer{background:#0F2A26;color:#E7EFEC;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:24px;height:24px;color:#fff}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700}
.footer-desc{font-size:14px;line-height:1.75;color:#CFD8D4;max-width:30ch}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:6px;font-size:14px;color:#CFD8D4}
.footer-contact strong{color:#fff;font-family:var(--font-mono);font-weight:600}
.footer-title{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;
  color:var(--clay);margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#CFD8D4;transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--clay);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:48px;padding:20px 0 24px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#A8B6B1;
}
.to-top{color:#CFD8D4;transition:color .2s ease}
.to-top:hover{color:var(--clay)}

/* ---------- fixed mobile bar ---------- */
.fixed-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:#fff;border-top:1px solid var(--ink);
  padding:9px 16px calc(9px + env(safe-area-inset-bottom));
  transform:translateY(115%);transition:transform .3s ease;
  box-shadow:0 -8px 24px -20px rgba(16,49,44,.5);
}
.fixed-bar.is-visible{transform:translateY(0)}
.fixed-bar-text{display:flex;flex-direction:column;min-width:0;line-height:1.35}
.fixed-bar-text strong{font-size:14px;color:var(--ink);font-weight:700}
.fixed-bar-text span{
  font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.fixed-bar .btn{min-height:40px;padding:0 18px;font-size:14px;flex:0 0 auto}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .search-box{width:190px}
  .search-box:focus-within{width:230px}
}
@media (max-width:1023px){
  .wrap{padding-left:24px;padding-right:24px}
  .main-nav{display:none}
  .search-box{display:none}
  .header-actions .btn-pill{display:none}
  .menu-toggle{display:inline-flex}
  .drawer{
    display:block;position:absolute;left:0;right:0;top:100%;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 20px 40px -28px rgba(16,49,44,.4);
    padding:8px 24px 20px;max-height:calc(100vh - 72px);overflow-y:auto;
  }
  .drawer[hidden]{display:none}
  .article-layout{grid-template-columns:1fr;gap:40px;padding:36px 0 56px}
  .sidebar{position:static;top:auto}
  .article-body{max-width:none}
  .article-foot{max-width:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:52px 0}
}
@media (max-width:767px){
  .wrap{padding-left:20px;padding-right:20px}
  body{padding-bottom:74px;font-size:15.5px}
  .header-inner{height:64px}
  .site-header.is-scrolled .header-inner{height:58px}
  .brand-text{font-size:16px}
  .article-hero{padding:14px 0 26px}
  .article-title{max-width:none}
  .breadcrumb{font-size:12px;padding-top:18px}
  .breadcrumb .current{max-width:60vw}
  .article-layout{padding:28px 0 48px}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:21px;margin:1.7em 0 .7em}
  .article-body h3{font-size:18px}
  .empty-state{padding:36px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{margin-top:32px}
  .cta-band{padding:44px 0}
  .cta-inner{gap:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .fixed-bar-text span{max-width:52vw}
}
@media (max-width:519px){
  .article-meta{font-size:12px;gap:6px 12px}
  .fixed-bar-text span{display:none}
  .fixed-bar-text strong{font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#10312C;
  --ink-deep:#0B231F;
  --ink-soft:#1C4A42;
  --terra:#C9613C;
  --brass:#B9A88A;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --tint:#EDF3F1;
  --text:#1A1D1C;
  --muted:#5C635F;
  --line:#E2DED6;
  --radius:6px;
  --radius-sm:4px;
  --mono:ui-monospace,"IBM Plex Mono","SFMono-Regular",Menlo,monospace;
  --sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(201,97,60,.28);border-radius:3px}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px}
.mono{font-family:var(--mono);letter-spacing:.04em}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px -16px rgba(16,49,44,.55)}
.header-inner{
  display:flex;align-items:center;gap:26px;
  height:72px;
  transition:height .25s ease;
}
.site-header.scrolled .header-inner{height:60px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink);font-size:17px;font-weight:700;letter-spacing:-.01em;
  min-height:44px;
}
.brand-mark{width:24px;height:24px;color:var(--ink);flex:none}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;
  font-size:15px;color:var(--muted);
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:10px;height:2px;width:0;
  background:var(--ink);transition:width .22s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{width:20px}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;width:220px;padding:0 16px;
  border-radius:999px;background:#F1EEE8;
  border:1.5px solid transparent;
  transition:width .25s ease,background .2s ease,border-color .2s ease;
}
.search-box:focus-within{width:280px;background:#fff;border-color:var(--ink)}
.search-box svg{width:16px;height:16px;color:var(--muted);flex:none}
.search-box input{
  width:100%;border:0;background:transparent;outline:none;
  font-family:inherit;font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:#8A918C}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;
  border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  cursor:pointer;transition:background .22s ease,color .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--terra);transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-ghost-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-ghost-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-terra{background:var(--terra);color:#fff}
.btn-terra:hover{background:#B4522F;transform:translateY(-1px)}
.nav-cta{border-radius:999px;height:40px;min-height:40px;padding:0 22px}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;color:var(--ink);cursor:pointer;
}
.menu-toggle svg{width:20px;height:20px}

/* ---------- page head ---------- */
.page-head{padding:36px 0 0}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:18px;
}
.breadcrumb .sep{color:var(--brass)}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .current{color:var(--ink);font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.page-banner{
  position:relative;border-radius:var(--radius);overflow:hidden;
  min-height:300px;display:flex;align-items:flex-end;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border:1px solid rgba(16,49,44,.12);
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,35,31,.86) 0%,rgba(16,49,44,.62) 48%,rgba(16,49,44,.35) 100%);
}
.banner-inner{position:relative;z-index:2;padding:44px 48px;max-width:760px}
.eyebrow{
  display:inline-block;font-family:var(--mono);font-size:13px;letter-spacing:.06em;
  color:#F0C7B6;margin-bottom:14px;
}
.page-banner h1{
  font-size:clamp(30px,4vw,46px);line-height:1.2;font-weight:800;letter-spacing:-.01em;
  color:#fff;margin-bottom:12px;
}
.page-banner p{font-size:16px;line-height:1.8;color:rgba(246,244,239,.88);max-width:600px}

/* ---------- features ---------- */
.features{padding:96px 0 40px}
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
  padding:48px 0;
}
.feature-row + .feature-row{border-top:1px solid var(--line)}
.feature-row.reverse .feature-media{order:2}
.feature-media{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:var(--tint);
}
.feature-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform .5s ease;
}
.feature-media:hover img{transform:scale(1.03)}
.feature-body .seq{
  display:block;font-family:var(--mono);font-size:14px;letter-spacing:.04em;
  color:var(--terra);margin-bottom:14px;
}
.feature-body h2{
  font-size:clamp(24px,3vw,32px);line-height:1.28;font-weight:700;
  color:var(--ink);margin-bottom:18px;
}
.feature-body p{font-size:16px;line-height:1.85;color:var(--muted);margin-bottom:14px}
.point-list{margin:22px 0 24px;display:grid;gap:10px}
.point-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--text);line-height:1.7;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:11px;height:1px;background:var(--brass);
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px solid transparent;padding-bottom:2px;
  position:relative;transition:color .2s ease,transform .2s ease;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--ink);
  transition:width .22s ease;
}
.text-link:hover{color:var(--terra);transform:translateX(2px)}
.text-link:hover::after{width:100%;background:var(--terra)}

/* ---------- flow ---------- */
.flow{padding:56px 0 8px}
.flow-head{max-width:640px;margin-bottom:36px}
.flow-head h2{font-size:clamp(24px,3vw,32px);line-height:1.25;color:var(--ink);font-weight:700}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.flow-item:hover{transform:translateY(-4px);box-shadow:0 20px 40px -28px rgba(16,49,44,.35);border-color:var(--ink)}
.flow-item .seq{font-family:var(--mono);font-size:13px;color:var(--terra);letter-spacing:.04em}
.flow-item h3{font-size:18px;font-weight:600;color:var(--ink);margin:10px 0 8px}
.flow-item p{font-size:14px;line-height:1.75;color:var(--muted)}

/* ---------- capability ---------- */
.capability{padding:88px 0 40px}
.cap-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--brass);border-bottom:1px solid var(--brass);
}
.cap-cell{padding:32px 24px 28px;border-left:1px solid var(--line)}
.cap-cell:first-child{border-left:0;padding-left:0}
.cap-num{
  font-family:var(--mono);font-size:clamp(24px,3vw,30px);font-weight:600;
  color:var(--ink);letter-spacing:-.01em;line-height:1.2;
}
.cap-num small{font-size:15px;font-weight:600;margin-left:2px}
.cap-label{font-size:13px;color:var(--muted);margin-top:8px;letter-spacing:.02em}

/* ---------- faq ---------- */
.faq-sec{padding:64px 0 88px}
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-intro h2{font-size:clamp(24px,3vw,34px);line-height:1.25;color:var(--ink);font-weight:700;margin-bottom:14px}
.faq-intro p{font-size:15px;line-height:1.8;color:var(--muted)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  width:100%;padding:20px 0;background:none;border:0;cursor:pointer;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);text-align:left;
  min-height:44px;transition:color .2s ease;
}
.faq-q:hover{color:var(--ink-soft)}
.faq-q .plus{
  flex:none;font-size:20px;line-height:1;color:var(--terra);
  transition:transform .25s ease;margin-top:2px;
}
.faq-item.open .faq-q .plus{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{font-size:15px;line-height:1.9;color:var(--muted);padding:0 40px 22px 0}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);color:#fff;padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-copy h2{
  font-size:clamp(24px,3vw,34px);line-height:1.28;font-weight:700;color:#fff;margin-bottom:12px;
}
.cta-copy p{font-size:15px;line-height:1.8;color:rgba(246,244,239,.76);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:#0F2A26;color:#F6F4EF;padding:72px 0 0;margin-bottom:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:24px;height:24px;color:#F6F4EF}
.footer-brand .brand-text{font-size:17px;font-weight:700;color:#fff;white-space:nowrap}
.footer-desc{font-size:14px;line-height:1.8;color:#C6D2CD;max-width:280px}
.footer-contact{margin-top:18px;font-size:13px;line-height:1.9;color:#A9BAB4}
.footer-contact strong{color:#fff;font-family:var(--mono);font-weight:600}
.footer-title{
  font-family:var(--mono);font-size:13px;letter-spacing:.06em;
  color:var(--terra);margin-bottom:16px;
}
.footer-links a{
  display:block;font-size:14px;color:#CFD8D4;padding:6px 0;
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:var(--terra);transform:translateX(2px)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#9FB0AA;
}
.to-top{color:#CFD8D4;transition:color .2s ease}
.to-top:hover{color:var(--terra)}

/* ---------- mobile bar ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  height:56px;padding:0 20px calc(0px + env(safe-area-inset-bottom));
  background:#fff;border-top:1px solid var(--ink);
  transform:translateY(110%);transition:transform .3s ease;
  box-shadow:0 -8px 24px -20px rgba(16,49,44,.6);
}
.mobile-bar.show{transform:translateY(0)}
.mobile-bar .bar-text{font-size:13px;color:var(--muted);line-height:1.3}
.mobile-bar .bar-text strong{display:block;font-size:14px;color:var(--ink)}
.bar-btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 20px;border-radius:999px;
  background:var(--terra);color:#fff;font-size:14px;font-weight:600;
  transition:background .2s ease;flex:none;
}
.bar-btn:hover{background:#B4522F}
@media(min-width:1024px){
  .mobile-bar{height:64px;padding:0 32px}
  .site-footer{margin-bottom:0}
}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  padding:20px;display:flex;flex-direction:column;gap:8px;
  overflow-y:auto;transform:translateX(101%);
  transition:transform .3s ease;
}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--ink);cursor:pointer;
}
.drawer nav{display:flex;flex-direction:column;gap:2px;margin-bottom:16px}
.drawer nav a{
  display:flex;align-items:center;min-height:52px;padding:0 4px;
  font-size:17px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);
}
.drawer nav a.active{color:var(--terra)}
.drawer .btn{width:100%;border-radius:var(--radius-sm)}

/* ---------- animations ---------- */
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1)}
.fade-up.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .fade-up{opacity:1;transform:none;transition:none}
  .feature-media img,.flow-item,.btn,.nav-link::after,.text-link::after{transition:none}
  .feature-media:hover img{transform:none}
  .flow-item:hover{transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .search-box{width:190px}
  .search-box:focus-within{width:220px}
}
@media (max-width:1023px){
  .wrap{padding:0 24px}
  .main-nav{display:none}
  .search-box{display:none}
  .menu-toggle{display:inline-flex}
  .nav-cta{display:none}
  .feature-row{grid-template-columns:1fr;gap:28px;padding:40px 0}
  .feature-row.reverse .feature-media{order:0}
  .features{padding:64px 0 24px}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .cap-bar{grid-template-columns:repeat(2,1fr);border-bottom:0}
  .cap-cell{border-left:0;border-bottom:1px solid var(--line);padding:24px 20px 22px}
  .cap-cell:first-child{padding-left:20px}
  .cap-cell:nth-child(odd){padding-left:0}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-desc{max-width:100%}
  .banner-inner{padding:32px 28px}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .header-inner{height:64px;gap:14px}
  .site-header.scrolled .header-inner{height:58px}
  .brand{font-size:16px}
  .page-banner{min-height:240px}
  .banner-inner{padding:26px 22px}
  .page-banner p{font-size:15px}
  .features{padding:48px 0 16px}
  .feature-body h2{font-size:22px}
  .flow{padding:40px 0 0}
  .flow-grid{grid-template-columns:1fr;gap:16px}
  .capability{padding:56px 0 24px}
  .cap-bar{grid-template-columns:1fr}
  .cap-cell{padding:20px 0 !important;border-left:0}
  .faq-sec{padding:40px 0 56px}
  .faq-a p{padding-right:0}
  .cta-band{padding:52px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .site-footer{padding-top:52px;margin-bottom:56px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:400px){
  .brand-text{font-size:15px}
  .page-banner h1{font-size:26px}
  .btn{padding:0 18px;font-size:14px}
}

/* roulang page: category2 */
:root{
  --ink:#10312C;
  --ink-deep:#0B231F;
  --ink-soft:#1C4A42;
  --terra:#C9613C;
  --brass:#B9A88A;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --tint:#EDF3F1;
  --text:#1A1D1C;
  --muted:#5C635F;
  --line:#E2DED6;
  --radius:6px;
  --radius-sm:4px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"IBM Plex Mono","SFMono-Regular",Menlo,monospace;
  --shadow-hover:0 20px 40px -28px rgba(16,49,44,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(201,97,60,.22)}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(201,97,60,.28);border-radius:var(--radius-sm)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.mono{font-family:var(--font-mono);letter-spacing:.04em;font-size:13px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.shrink{box-shadow:0 6px 20px -16px rgba(16,49,44,.4)}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:72px;
  transition:height .25s ease;
}
.site-header.shrink .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0}
.brand-mark{width:24px;height:24px;color:var(--ink);flex-shrink:0}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-right:auto}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:10px 14px;
  font-size:15px;color:var(--muted);
  transition:color .2s ease;
  min-height:44px;
}
.nav-link::after{
  content:"";position:absolute;left:14px;bottom:4px;
  height:2px;width:0;background:var(--ink);border-radius:2px;
  transition:width .22s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:20px}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{width:20px}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search input{
  height:40px;width:220px;
  border-radius:999px;
  border:1px solid transparent;
  background:#F1EEE8;
  padding:0 40px 0 16px;
  font-size:14px;color:var(--text);
  transition:width .25s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:#8A918C}
.nav-search input:focus{
  width:280px;background:#fff;border-color:var(--ink);
  outline:none;box-shadow:0 0 0 3px rgba(201,97,60,.18);
}
.search-btn{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:30px;height:30px;display:grid;place-items:center;
  border-radius:999px;color:var(--muted);
  transition:color .2s ease,background .2s ease;
}
.search-btn:hover{color:var(--ink);background:#EDF3F1}
.nav-toggle{
  display:none;width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;color:var(--ink);
}
.mobile-drawer{
  position:fixed;inset:0;z-index:59;
  background:#fff;
  padding:88px 20px 32px;
  overflow-y:auto;
  display:none;
}
.mobile-drawer.open{display:block}
.mobile-drawer a.drawer-link{
  display:block;padding:15px 4px;
  font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.drawer-link.active{color:var(--ink);font-weight:600}
.mobile-drawer .btn{margin-top:24px;width:100%}
.mobile-drawer .drawer-note{margin-top:24px;font-size:13px;color:var(--muted)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  padding:13px 26px;min-height:44px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  transition:background .22s ease,color .22s ease,transform .18s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--terra);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-sm{padding:9px 20px;font-size:14px;border-radius:999px;min-height:40px}
.btn-terra{background:var(--terra);color:#fff}
.btn-terra:hover{background:#B4532F;color:#fff;transform:translateY(-1px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--ink);
  padding-bottom:2px;
  transition:color .2s ease,transform .2s ease,border-color .2s ease;
}
.text-link:hover{color:var(--terra);border-color:var(--terra);transform:translateX(2px)}

/* ---------- 通用 ---------- */
.section{padding:96px 0}
.section--white{background:#fff}
.section--tint{background:var(--tint)}
.eyebrow{
  display:inline-block;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;
  color:var(--terra);text-transform:uppercase;
}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{
  font-size:clamp(26px,3.2vw,40px);
  line-height:1.25;font-weight:700;letter-spacing:-.01em;
  color:var(--ink);margin-top:12px;
}
.section-sub{font-size:15px;color:var(--muted);margin-top:14px;line-height:1.8}
.badge{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;
  background:#E8F0EE;color:var(--ink);
  font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
.badge--terra{background:rgba(201,97,60,.12);color:#A44A28}

/* ---------- 页头 ---------- */
.page-head{padding:72px 0 64px;background:var(--bg);position:relative;overflow:hidden}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(16,49,44,.05) 0 1px,transparent 1px 22px);
  opacity:.5;pointer-events:none;
}
.page-head-grid{
  position:relative;
  display:grid;grid-template-columns:1.35fr 1fr;
  gap:56px;align-items:center;
}
.page-head h1{
  font-size:clamp(30px,4vw,44px);
  line-height:1.2;font-weight:800;letter-spacing:-.02em;
  color:var(--ink);margin-top:14px;
}
.page-head .lead{
  font-size:16px;line-height:1.85;color:var(--muted);
  margin-top:18px;max-width:520px;
}
.page-head-meta{display:flex;align-items:center;gap:14px;margin:26px 0 28px;flex-wrap:wrap}
.page-head-meta .mono{color:var(--ink-soft);font-weight:600}
.page-head-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--brass)}
.page-head-media{position:relative}
.page-head-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius);
  background:var(--tint);
}
.page-head-media::after{
  content:"";position:absolute;inset:0;
  transform:translate(12px,12px);
  border:1px solid rgba(201,97,60,.55);
  border-radius:var(--radius);
  pointer-events:none;z-index:-1;
}

/* ---------- 卡片网格 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{
  display:flex;flex-direction:column;gap:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px 22px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.scene-card:hover{
  transform:translateY(-4px);
  border-color:var(--ink);
  box-shadow:var(--shadow-hover);
}
.scene-card .card-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.scene-icon{
  width:40px;height:40px;border-radius:var(--radius);
  border:1px solid var(--line);
  display:grid;place-items:center;color:var(--ink);
  background:var(--tint);flex-shrink:0;
  transition:border-color .25s ease,color .25s ease;
}
.scene-card:hover .scene-icon{border-color:var(--ink);color:var(--ink)}
.scene-card h3{font-size:19px;line-height:1.45;font-weight:600;color:var(--ink)}
.scene-card p{font-size:14.5px;line-height:1.85;color:var(--muted);flex-grow:1}
.scene-foot{
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);padding-top:14px;margin-top:2px;
}
.scene-foot a{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;color:var(--ink);font-weight:600;
  transition:color .2s ease,gap .2s ease;
}
.scene-foot a:hover{color:var(--terra);gap:10px}

/* ---------- 流程 ---------- */
.steps{
  display:grid;grid-template-columns:repeat(5,1fr);gap:0;
  border-top:1px solid var(--brass);
}
.step{
  position:relative;
  padding:28px 22px 4px 0;
  border-right:1px solid rgba(226,222,214,.9);
  transition:transform .25s ease;
}
.step:last-child{border-right:none}
.step:hover{transform:translateY(-2px)}
.step-num{
  font-family:var(--font-mono);font-size:14px;
  color:var(--terra);letter-spacing:.06em;
  transition:color .22s ease;
}
.step:hover .step-num{color:var(--ink)}
.step h3{font-size:18px;font-weight:600;color:var(--ink);margin-top:10px;line-height:1.45}
.step p{font-size:14px;line-height:1.8;color:var(--muted);margin-top:8px}
.step:not(:first-child){padding-left:22px}

/* ---------- 表格 ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.spec-table{width:100%;min-width:680px;border-collapse:collapse;font-size:14px}
.spec-table thead th{
  background:var(--tint);color:var(--ink);
  font-size:13px;font-weight:600;letter-spacing:.02em;
  text-align:left;padding:14px 18px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.spec-table tbody th,.spec-table tbody td{
  padding:15px 18px;
  border-bottom:1px solid var(--line);
  text-align:left;vertical-align:top;
}
.spec-table tbody tr:last-child th,
.spec-table tbody tr:last-child td{border-bottom:none}
.spec-table tbody th{font-size:15px;font-weight:600;color:var(--ink);white-space:nowrap}
.spec-table tbody td{color:#3C4340;line-height:1.75}
.spec-table tbody tr{transition:background .2s ease}
.spec-table tbody tr:hover{background:var(--bg)}

.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  margin-top:48px;padding-top:32px;
  border-top:1px solid var(--brass);
}
.stat-num{
  font-family:var(--font-mono);font-size:28px;font-weight:600;
  color:var(--ink);line-height:1.2;letter-spacing:.02em;
}
.stat-label{font-size:13px;color:var(--muted);margin-top:8px;line-height:1.7}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1.75fr;gap:56px;align-items:start}
.faq-intro h2{
  font-size:clamp(26px,3.2vw,38px);line-height:1.25;
  font-weight:700;color:var(--ink);margin-top:12px;
}
.faq-intro p{font-size:15px;color:var(--muted);margin-top:14px;line-height:1.85}
.faq-list{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:18px;
  padding:20px 0;
  font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--terra)}
.faq-plus{
  flex-shrink:0;width:22px;height:22px;
  display:grid;place-items:center;
  color:var(--terra);
  transition:transform .25s ease;
}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-answer{
  font-size:15px;line-height:1.9;color:var(--muted);
  padding:0 40px 22px 0;max-width:720px;
}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:#fff;padding:72px 0}
.cta-grid{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-band h2{
  font-size:clamp(24px,3vw,36px);line-height:1.28;
  font-weight:700;letter-spacing:-.01em;color:#fff;
}
.cta-band p{font-size:15px;line-height:1.85;color:#C7D4CF;margin-top:14px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F2A26;color:#F6F4EF;padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff}
.footer-brand .brand-mark{color:#fff}
.footer-brand .brand-text{font-size:17px;font-weight:700;color:#fff}
.footer-desc{font-size:14px;line-height:1.8;color:#A9BCB6;max-width:300px}
.footer-contact{margin-top:20px;font-size:13.5px;line-height:2;color:#A9BCB6}
.footer-contact strong{color:#fff;font-family:var(--font-mono);letter-spacing:.03em}
.footer-title{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
  color:var(--brass);margin-bottom:16px;
}
.footer-links a{
  display:block;font-size:14px;color:#CFD8D4;
  padding:6px 0;
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:var(--terra);transform:translateX(2px)}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  font-size:13px;color:#9FB1AA;
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;
  color:#CFD8D4;font-size:13px;
  transition:color .2s ease;
  min-height:44px;
}
.to-top:hover{color:var(--terra)}

/* ---------- 固定转化条 ---------- */
.fixed-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:#fff;
  border-top:1px solid var(--ink);
  padding:8px 20px calc(8px + env(safe-area-inset-bottom));
  transform:translateY(0);
  transition:transform .3s ease;
}
.fixed-bar p{
  font-size:13px;line-height:1.5;color:var(--ink);font-weight:600;
  max-width:62%;
}
.fixed-bar .btn{flex-shrink:0}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .wrap{padding:0 24px}
  .main-nav,.nav-search,.header-cta{display:none}
  .nav-toggle{display:flex}
  .section{padding:72px 0}
  .page-head{padding:56px 0 48px}
  .page-head-grid{grid-template-columns:1fr;gap:36px}
  .page-head-media::after{display:none}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);border-top:none}
  .step{padding:24px 20px 8px 0;border-right:none;border-top:1px solid var(--brass)}
  .step:not(:first-child){padding-left:0}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .cta-band{padding:56px 0}
  .fixed-bar{transform:translateY(0)}
  body{padding-bottom:80px}
}
@media (min-width:1024px){
  .fixed-bar{transform:translateY(110%)}
  .fixed-bar.show{transform:translateY(0)}
}
@media (max-width:767px){
  .scene-grid{grid-template-columns:1fr}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:20px}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .wrap{padding:0 20px}
  .header-inner{gap:12px}
  .brand-text{font-size:15px}
  .section{padding:56px 0}
  .page-head{padding:44px 0 40px}
  .page-head h1{font-size:29px}
  .btn{padding:12px 20px;font-size:14.5px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .fixed-bar p{font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}