/* roulang page: index */
:root{
  --graphite:#161A1C;
  --graphite-2:#242A2D;
  --accent:#B96B2E;
  --accent-dark:#A35C24;
  --sand:#E3B27A;
  --teal:#5C7A74;
  --bg:#F7F4EF;
  --bg-alt:#EFE9E0;
  --bg-dark:#14181A;
  --text:#1D2224;
  --text-2:#5A6360;
  --text-weak:#8A918D;
  --border:#DFD8CD;
  --border-dark:rgba(255,255,255,.12);
  --success:#3F7D5A;
  --warning:#B4552F;
  --info:#4A6B7A;
  --radius-sm:6px;
  --radius-md:10px;
  --radius-lg:14px;
  --radius-xl:20px;
  --shadow-1:0 1px 2px rgba(29,34,36,.06);
  --shadow-2:0 8px 24px rgba(29,34,36,.10);
  --shadow-3:0 12px 32px rgba(29,34,36,.16);
  --container:1200px;
  --nav-h:76px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--accent);text-decoration:none;transition:color .18s ease-out;}
a:hover{text-decoration:underline;}
img{max-width:100%;display:block;background:var(--bg-alt);}
button{font-family:inherit;}
body.no-scroll{overflow:hidden;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
section[id]{scroll-margin-top:88px;}
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.section-dark{background:var(--graphite);color:#fff;}
.section-dark .section-title{color:#fff;}
.section-dark .section-desc{color:rgba(255,255,255,.66);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.section-title{font-size:36px;line-height:1.3;font-weight:700;letter-spacing:-.2px;max-width:18ch;}
.section-desc{margin-top:12px;font-size:16px;color:var(--text-2);max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.4px;color:var(--accent-dark);font-weight:600;text-transform:uppercase;}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--accent);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--radius-md);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  text-decoration:none;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-primary:hover{background:var(--accent-dark);border-color:var(--accent-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-secondary{background:transparent;color:var(--text);border-color:var(--border);}
.btn-secondary:hover{border-color:var(--teal);background:rgba(92,122,116,.06);color:var(--text);}
.btn-ghost{background:transparent;color:#fff;border-color:var(--sand);}
.btn-ghost:hover{background:var(--sand);color:var(--graphite);border-color:var(--sand);}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.btn.is-loading{opacity:.7;pointer-events:none;}
.btn.is-loading::after{content:"…";letter-spacing:2px;}
.btn-sm{padding:10px 18px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--accent);}
.link-arrow svg{width:16px;height:16px;transition:transform .18s ease-out;}
.link-arrow:hover svg{transform:translateX(3px);}

/* 徽章 */
.badge{display:inline-flex;align-items:center;height:24px;padding:2px 10px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;line-height:1;background:rgba(185,107,46,.10);color:var(--accent-dark);white-space:nowrap;}
.badge-teal{background:rgba(92,122,116,.12);color:var(--teal);}
.badge-success{background:rgba(63,125,90,.12);color:var(--success);}
.badge-warning{background:rgba(180,85,47,.12);color:var(--warning);}

/* 导航 */
.site-header{position:sticky;top:0;z-index:100;background:rgba(247,244,239,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);transition:box-shadow .18s ease-out;}
.site-header.scrolled{box-shadow:var(--shadow-2);}
.nav-inner{position:relative;height:var(--nav-h);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;}
.nav-side{display:flex;align-items:center;gap:28px;}
.nav-side.right{justify-content:flex-end;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:8px 0;text-decoration:none;transition:color .18s ease-out;}
.nav-link::after{content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;background:var(--accent);transition:left .2s ease-out,right .2s ease-out;}
.nav-link:hover,.nav-link.active{color:var(--text);text-decoration:none;}
.nav-link:hover::after,.nav-link.active::after{left:0;right:0;}
.brand{display:flex;align-items:center;gap:10px;justify-self:center;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{width:36px;height:36px;border-radius:8px;background:var(--accent);display:flex;align-items:center;justify-content:center;flex:0 0 36px;box-shadow:var(--shadow-1);}
.brand-mark svg{width:22px;height:22px;display:block;}
.brand-text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.2px;white-space:nowrap;}
.brand-text em{font-style:normal;color:var(--accent);}
.nav-cta{padding:10px 20px;font-size:14px;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:var(--radius-md);background:transparent;cursor:pointer;position:absolute;right:0;top:50%;transform:translateY(-50%);align-items:center;justify-content:center;}
.nav-toggle span{display:block;width:20px;height:1.5px;background:var(--text);position:relative;transition:background .18s;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:20px;height:1.5px;background:var(--text);transition:transform .2s ease-out,top .2s ease-out;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg);}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg);}
.mobile-drawer{display:none;position:fixed;left:0;right:0;top:var(--nav-h);background:var(--bg);border-bottom:1px solid var(--border);transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .2s ease-out,transform .2s ease-out;z-index:99;box-shadow:var(--shadow-2);}
.mobile-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-drawer ul{padding:8px 16px 20px;}
.mobile-drawer li{border-bottom:1px solid var(--border);}
.mobile-drawer li:last-child{border-bottom:0;padding-top:12px;}
.mobile-drawer a.drawer-link{display:flex;align-items:center;min-height:56px;font-size:15px;font-weight:500;color:var(--text);}

/* Hero */
.hero{padding:96px 0;background:linear-gradient(180deg,#F7F4EF 0%,#F7F4EF 72%,#EFE9E0 100%);}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.hero-title{font-size:52px;line-height:1.25;font-weight:700;letter-spacing:-.5px;margin:18px 0 20px;color:var(--text);}
.hero-title .h1-sub{display:block;font-size:30px;line-height:1.35;font-weight:600;color:var(--text-2);margin-top:10px;letter-spacing:0;}
.hero-sub{font-size:18px;line-height:1.75;color:var(--text-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust-list{display:flex;flex-wrap:wrap;gap:28px;margin-top:40px;padding-top:24px;border-top:1px solid var(--border);}
.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);}
.trust-item svg{width:18px;height:18px;color:var(--teal);flex:0 0 18px;}
.hero-visual{position:relative;}
.hero-media{position:relative;aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius-xl);border:1px solid var(--border);box-shadow:var(--shadow-2);background:var(--bg-alt);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-deco{position:absolute;right:-16px;bottom:-16px;width:80px;height:80px;background:rgba(227,178,122,.10);border-radius:var(--radius-lg);pointer-events:none;}

/* 卖点 */
.value-list{border-top:1px solid var(--border);}
.value-row{position:relative;display:grid;grid-template-columns:80px 1fr 96px;gap:24px;align-items:center;padding:32px 0 32px 20px;border-bottom:1px solid var(--border);transition:background .18s ease-out;}
.value-row::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);transform:scaleY(0);transform-origin:top;transition:transform .18s ease-out;}
.value-row:hover{background:rgba(239,233,224,.55);}
.value-row:hover::before{transform:scaleY(1);}
.value-num{font-size:44px;font-weight:700;line-height:1;color:var(--sand);font-variant-numeric:tabular-nums;}
.value-body h3{font-size:22px;font-weight:600;line-height:1.4;margin-bottom:6px;}
.value-body p{font-size:15px;line-height:1.8;color:var(--text-2);max-width:520px;}
.value-icon{width:96px;height:96px;border-radius:50%;border:1px solid var(--border);background:rgba(92,122,116,.06);display:flex;align-items:center;justify-content:center;justify-self:end;}
.value-icon svg{width:30px;height:30px;color:var(--teal);}

/* 演示 */
.demo-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.demo-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-dark);aspect-ratio:16/9;background:var(--graphite-2);}
.demo-media img{width:100%;height:100%;object-fit:cover;}
.tag-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}
.tag{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid var(--border-dark);border-radius:var(--radius-sm);font-size:13px;color:rgba(255,255,255,.78);}
.tag svg{width:16px;height:16px;color:var(--sand);}
.demo-actions{margin-top:32px;}

/* 证据 */
.proof-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:24px;}
.proof-main{display:grid;gap:24px;}
.proof-side{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.proof-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-1);}
.proof-card h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.proof-card p{font-size:14px;color:var(--text-2);line-height:1.75;}
.proof-num{font-size:40px;font-weight:700;line-height:1.1;color:var(--sand);font-variant-numeric:tabular-nums;margin-bottom:8px;}
.proof-num small{font-size:18px;font-weight:600;color:var(--accent-dark);margin-left:4px;}
.partners{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:32px;}
.partner-box{background:rgba(29,34,36,.05);border:1px dashed var(--border);border-radius:var(--radius-md);padding:18px 12px;text-align:center;font-size:14px;color:var(--text-2);}

/* 价格 */
.price-grid{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start;}
.price-main{background:var(--graphite);border:1px solid var(--sand);border-radius:var(--radius-lg);padding:32px;color:#fff;}
.price-main .badge{background:rgba(227,178,122,.16);color:var(--sand);}
.price-value{font-size:36px;font-weight:700;line-height:1.2;margin:20px 0 4px;font-variant-numeric:tabular-nums;}
.price-value small{font-size:15px;font-weight:500;color:rgba(255,255,255,.6);margin-left:6px;}
.price-note{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:24px;}
.price-features{margin:0 0 28px;display:grid;gap:12px;}
.price-features li{display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.84);}
.price-features svg{width:18px;height:18px;color:var(--sand);flex:0 0 18px;margin-top:3px;}
.price-rows{border-top:1px solid var(--border);}
.price-row{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px 8px;border-bottom:1px solid var(--border);transition:background .18s ease-out;}
.price-row:hover{background:var(--bg-alt);}
.price-row h3{font-size:18px;font-weight:600;margin-bottom:2px;}
.price-row p{font-size:14px;color:var(--text-2);}
.price-row .price-side{text-align:right;flex:0 0 auto;}
.price-row .price-side strong{display:block;font-size:18px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;}
.price-row .price-side a{font-size:13px;color:var(--accent);}
.price-foot{margin-top:20px;font-size:13px;color:var(--text-weak);}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:40% 60%;gap:48px;align-items:start;}
.faq-aside{position:sticky;top:104px;}
.faq-list{border-top:1px solid var(--border);}
.faq-item{border-bottom:1px solid var(--border);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 0;background:none;border:0;cursor:pointer;text-align:left;font-size:18px;font-weight:600;color:var(--text);line-height:1.5;transition:color .18s ease-out;}
.faq-q:hover{color:var(--accent);}
.faq-item.is-open .faq-q{color:var(--accent);}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px;transition:transform .25s ease-out;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:1px;}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out,padding .3s ease-out;font-size:15px;line-height:1.8;color:var(--text-2);}
.faq-item.is-open .faq-a{max-height:320px;padding-top:12px;padding-bottom:4px;}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .18s ease-out,box-shadow .18s ease-out;text-decoration:none;color:inherit;}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);text-decoration:none;}
.news-card:hover .news-media img{transform:scale(1.02);}
.news-card-lg{grid-column:span 2;grid-row:span 2;}
.news-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;gap:10px;}
.news-body h3{font-size:20px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:14px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card-lg .news-body h3{font-size:24px;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--border);font-size:13px;color:var(--text-weak);}
.empty-state{background:#fff;border:1px dashed var(--border);border-radius:var(--radius-lg);padding:64px 24px;text-align:center;box-shadow:var(--shadow-1);}
.empty-state svg{width:64px;height:64px;color:var(--text-weak);margin:0 auto 16px;}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:20px;}

/* CTA 带 */
.cta-band{position:relative;overflow:hidden;background:var(--bg-dark);color:#fff;padding:96px 0;text-align:center;}
.cta-band .section-title{max-width:none;margin:0 auto;}
.cta-band p{margin:14px auto 32px;max-width:640px;color:rgba(239,233,224,.72);font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.cta-deco{position:absolute;right:32px;bottom:24px;width:160px;height:160px;border:1px solid rgba(227,178,122,.08);border-radius:24px;transform:rotate(12deg);pointer-events:none;}

/* 页脚 */
.site-footer{background:var(--bg-dark);color:#EFE9E0;padding:64px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand .brand-text{color:#EFE9E0;}
.footer-brand .brand-mark{background:var(--accent);}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(239,233,224,.62);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:#EFE9E0;}
.footer-col li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:14px;color:rgba(239,233,224,.62);text-decoration:none;}
.footer-col a:hover{color:var(--sand);text-decoration:none;}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid var(--border-dark);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:13px;color:rgba(239,233,224,.5);}
.footer-bottom .copy-right{text-align:right;}

/* 浮动 CTA */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:90;display:inline-flex;align-items:center;gap:10px;padding:14px 20px;border-radius:var(--radius-md);background:var(--accent);color:#fff;font-size:15px;font-weight:600;box-shadow:var(--shadow-3);opacity:0;transform:translateY(10px);pointer-events:none;transition:opacity .2s ease-out,transform .2s ease-out,background .18s ease-out;text-decoration:none;}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--accent-dark);transform:translateY(-1px);text-decoration:none;color:#fff;}
.float-cta svg{width:16px;height:16px;}

/* 响应式 */
@media (max-width:1280px){
  .container{padding:0 24px;}
}
@media (max-width:1024px){
  .nav-side{display:none;}
  .nav-toggle{display:flex;}
  .mobile-drawer{display:block;}
  .nav-inner{grid-template-columns:1fr;justify-items:center;}
  .brand{justify-self:center;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-title{font-size:42px;}
  .hero-title .h1-sub{font-size:26px;}
  .demo-grid{grid-template-columns:1fr;gap:32px;}
  .proof-layout{grid-template-columns:1fr;}
  .proof-main{grid-template-columns:1fr 1fr;}
  .price-grid{grid-template-columns:1fr;gap:24px;}
  .faq-grid{grid-template-columns:1fr;gap:24px;}
  .faq-aside{position:static;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-card-lg{grid-column:span 2;grid-row:auto;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:64px 0;}
  .section-title{font-size:30px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .hero{padding:48px 0;}
  .hero-title{font-size:34px;}
  .hero-title .h1-sub{font-size:21px;}
  .hero-sub{font-size:16px;}
  .section-title{font-size:26px;}
  .hero-actions .btn{width:100%;}
  .trust-list{gap:14px;}
  .trust-item{width:calc(50% - 7px);}
  .value-row{grid-template-columns:44px 1fr;gap:16px;padding:24px 0 24px 16px;}
  .value-num{font-size:28px;}
  .value-icon{display:none;}
  .value-body h3{font-size:19px;}
  .proof-main,.proof-side{grid-template-columns:1fr;}
  .partners{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:1fr;}
  .news-card-lg{grid-column:span 1;}
  .news-card-lg .news-body h3{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{justify-content:center;text-align:center;}
  .footer-bottom .copy-right{text-align:center;}
  .price-row{flex-direction:column;align-items:flex-start;gap:8px;}
  .price-row .price-side{text-align:left;}
  .float-cta{left:0;right:0;bottom:0;width:100%;border-radius:0;justify-content:space-between;padding:0 20px;height:56px;box-shadow:none;border-top:1px solid rgba(255,255,255,.15);}
  .cta-band{padding:64px 0;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:520px){
  .hero-title{font-size:30px;}
  .hero-title .h1-sub{font-size:19px;}
  .trust-item{width:100%;}
  .partners{grid-template-columns:1fr;}
  .price-main{padding:24px;}
  .price-value{font-size:30px;}
  .section-title{font-size:24px;}
}

/* roulang page: article */
:root{
  --graphite:#161A1C;
  --graphite-2:#242A2D;
  --amber:#B96B2E;
  --amber-dark:#A35C24;
  --sand:#E3B27A;
  --teal:#5C7A74;
  --bg:#F7F4EF;
  --bg-alt:#EFE9E0;
  --bg-dark:#14181A;
  --text:#1D2224;
  --text-2:#5A6360;
  --text-3:#8A918D;
  --border:#DFD8CD;
  --border-dark:rgba(255,255,255,.12);
  --success:#3F7D5A;
  --warn:#B4552F;
  --info:#4A6B7A;
  --r-s:6px;
  --r-m:10px;
  --r-l:14px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(29,34,36,.06);
  --sh-2:0 8px 24px rgba(29,34,36,.10);
  --sh-3:0 12px 32px rgba(29,34,36,.16);
  --container:1200px;
  --nav-h:76px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.drawer-open{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:-.2px;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
input,textarea,select{font-family:inherit;font-size:inherit;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(247,244,239,.94);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease-out,background .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);background:rgba(247,244,239,.98);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);gap:16px;}
.nav-side{display:flex;align-items:center;gap:26px;flex:1 1 0;min-width:0;}
.nav-side.left{justify-content:flex-start;}
.nav-side.right{justify-content:flex-end;gap:22px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;white-space:nowrap;transition:color .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--amber);transition:left .2s ease-out,right .2s ease-out;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after,.nav-link.active::after{left:0;right:0;}
.nav-link.active{color:var(--text);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:8px;background:var(--graphite);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:26px;height:26px;display:block;}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.2px;color:var(--text);white-space:nowrap;}
.brand-text em{font-style:normal;color:var(--amber);}
.nav-cta{padding:10px 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:10px;position:relative;
}
.nav-toggle span{
  position:relative;display:block;width:22px;height:2px;background:var(--text);
  border-radius:2px;transition:background .18s;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:22px;height:2px;background:var(--text);
  border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle span::before{top:-7px;}
.nav-toggle span::after{top:7px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span::after{transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  display:none;position:fixed;top:var(--nav-h);left:0;right:0;bottom:0;
  background:var(--bg);z-index:110;padding:8px 24px 40px;overflow-y:auto;
  border-top:1px solid var(--border);
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a.d-item{
  display:flex;align-items:center;min-height:56px;font-size:16px;font-weight:500;
  color:var(--text);border-bottom:1px solid var(--border);
}
.mobile-drawer a.d-item:last-child{border-bottom:0;}
.mobile-drawer .d-cta{
  display:flex;align-items:center;justify-content:center;margin-top:20px;min-height:48px;
  background:var(--amber);color:#fff;border-radius:var(--r-m);font-weight:600;font-size:15px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-m);padding:14px 26px;font-size:15px;font-weight:600;
  transition:background .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,
             transform .18s ease-out,border-color .18s ease-out;
  border:1.5px solid transparent;line-height:1.2;white-space:nowrap;
}
.btn-primary{background:var(--amber);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--amber-dark);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border);}
.btn-ghost:hover{border-color:var(--teal);background:rgba(92,122,116,.06);}
.btn-dark{background:transparent;color:#F7F4EF;border-color:var(--sand);}
.btn-dark:hover{background:var(--sand);color:var(--graphite);}
.btn:disabled,.btn.is-disabled{opacity:.45;pointer-events:none;}
.btn.is-loading{opacity:.7;pointer-events:none;}
.btn.is-loading::after{content:"...";letter-spacing:1px;margin-left:2px;}
.btn-sm{padding:10px 20px;font-size:14px;}
.link-arrow{color:var(--amber);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px;transition:color .18s;}
.link-arrow:hover{color:var(--amber-dark);text-decoration:underline;text-underline-offset:3px;}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:2px 10px;border-radius:var(--r-s);
  font-size:13px;font-weight:500;letter-spacing:.4px;
  background:rgba(185,107,46,.10);color:#A35C24;white-space:nowrap;
}
.badge-teal{background:rgba(92,122,116,.12);color:#43605B;}
.badge-solid{background:var(--graphite);color:var(--sand);}

/* ---------- Article hero ---------- */
.article-hero{
  padding:48px 0 40px;
  background:linear-gradient(180deg,#F7F4EF 0%,#F3EFE8 100%);
  border-bottom:1px solid var(--border);
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);letter-spacing:.4px;margin-bottom:22px;
}
.breadcrumb a{color:var(--text-2);transition:color .18s;}
.breadcrumb a:hover{color:var(--amber);}
.breadcrumb .sep{color:#C3BAAE;}
.breadcrumb .cur{color:var(--text-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  font-size:40px;line-height:1.28;font-weight:700;letter-spacing:-.5px;
  max-width:900px;color:var(--text);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:24px;
  font-size:13px;color:var(--text-3);letter-spacing:.4px;
}
.article-meta .divider{width:1px;height:13px;background:var(--border);display:inline-block;}
.meta-dot{display:inline-flex;align-items:center;gap:6px;}
.meta-dot svg{width:15px;height:15px;stroke:var(--text-3);fill:none;stroke-width:1.5;}

/* ---------- Article body ---------- */
.article-section{padding:64px 0 88px;}
.article-wrap{max-width:760px;margin:0 auto;}
.article-body{font-size:17px;line-height:1.9;color:var(--text);}
.article-body p{margin:0 0 24px;max-width:760px;}
.article-body h2{
  font-size:22px;font-weight:700;line-height:1.4;margin:48px 0 18px;
  padding-left:14px;position:relative;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;width:3px;height:20px;
  background:var(--amber);border-radius:2px;
}
.article-body h3{font-size:19px;font-weight:600;margin:32px 0 14px;color:var(--graphite);}
.article-body h4{font-size:18px;font-weight:600;margin:24px 0 12px;}
.article-body ul,.article-body ol{margin:0 0 24px;padding-left:24px;}
.article-body li{list-style:disc;margin-bottom:12px;line-height:1.8;}
.article-body ol li{list-style:decimal;}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;border-left:3px solid var(--teal);
  background:var(--bg-alt);border-radius:0 var(--r-l) var(--r-l) 0;
  font-size:16px;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-l);margin:28px 0 12px;background:var(--bg-alt);width:100%;height:auto;}
.article-body figure{margin:28px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:12px;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;
  background:var(--bg-alt);padding:2px 7px;border-radius:var(--r-s);color:#8A4E23;
}
.article-body pre{
  background:var(--graphite);color:#EFE9E0;padding:20px 22px;border-radius:var(--r-l);
  overflow-x:auto;font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body .table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--border);border-radius:var(--r-l);}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px;}
.article-body th{
  background:var(--bg-alt);text-align:left;font-weight:600;padding:12px 16px;
  border-bottom:1px solid var(--border);color:var(--graphite);
}
.article-body td{padding:12px 16px;border-bottom:1px solid var(--border);color:var(--text-2);}
.article-body tr:last-child td{border-bottom:0;}
.article-body a{color:var(--teal);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;}
.article-body a:hover{color:var(--amber);}
.article-body hr{border:0;border-top:1px solid var(--border);margin:40px 0;}

/* Empty state */
.empty-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-l);
  padding:64px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-card svg{width:64px;height:64px;stroke:var(--text-3);fill:none;stroke-width:1.5;margin:0 auto 20px;}
.empty-card p{font-size:15px;color:var(--text-2);margin-bottom:24px;}

/* ---------- Related ---------- */
.related-section{padding:0 0 88px;}
.related-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  border-top:1px solid var(--border);padding-top:48px;margin-bottom:28px;
}
.related-head h3{font-size:22px;font-weight:600;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-l);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D3CABD;}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.card:hover .card-media img{transform:scale(1.02);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.card-title{
  font-size:18px;font-weight:600;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:8px;
}
.card-desc{
  font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:16px;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--text-3);letter-spacing:.4px;
}
.back-row{margin-top:36px;display:flex;}

/* ---------- Min CTA ---------- */
.mini-cta{background:var(--bg-dark);padding:56px 0;position:relative;overflow:hidden;}
.mini-cta::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(227,178,122,.12) 0%,rgba(227,178,122,0) 70%);
}
.mini-cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;z-index:1;
}
.mini-cta h2{color:#F7F4EF;font-size:28px;line-height:1.35;margin-bottom:8px;}
.mini-cta p{color:rgba(239,233,224,.62);font-size:15px;}
.mini-cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- Floating CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:130;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--amber);color:#fff;font-size:15px;font-weight:600;
  padding:14px 20px;border-radius:var(--r-m);box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .2s ease-out,transform .2s ease-out,background .18s ease-out,visibility .2s;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--amber-dark);transform:translateY(-1px);}
.float-cta svg{width:16px;height:16px;stroke:#fff;fill:none;stroke-width:1.8;}
.float-spacer{display:none;}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-dark);color:#EFE9E0;padding:72px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:18px;}
.site-footer .brand-mark{background:var(--graphite-2);border:1px solid var(--border-dark);}
.site-footer .brand-text{color:#F7F4EF;}
.site-footer .brand-text em{color:var(--sand);}
.footer-desc{
  font-size:14px;line-height:1.8;color:rgba(239,233,224,.62);max-width:320px;
}
.footer-col h4{
  font-size:15px;font-weight:600;color:#F7F4EF;margin-bottom:18px;letter-spacing:.4px;
}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a,.footer-col ul li span{
  font-size:14px;color:rgba(239,233,224,.62);transition:color .18s ease-out;
}
.footer-col ul li a:hover{color:var(--sand);}
.footer-bottom{
  border-top:1px solid var(--border-dark);padding:24px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(239,233,224,.5);letter-spacing:.4px;
}
.footer-bottom .copy-right{color:rgba(239,233,224,.4);}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* ---------- Breakpoints ---------- */
@media (max-width:1280px){
  .nav-side{gap:18px;}
  .nav-side.right{gap:16px;}
  .nav-link{font-size:14px;}
}
@media (max-width:1024px){
  :root{--nav-h:68px;}
  .nav-side{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{justify-content:space-between;}
  .brand-text{font-size:17px;}
  .article-title{font-size:34px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px;}
  .mini-cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .article-hero{padding:32px 0 28px;}
  .article-title{font-size:26px;line-height:1.35;}
  .article-meta{gap:10px;font-size:12.5px;}
  .breadcrumb .cur{max-width:200px;}
  .article-section{padding:40px 0 56px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:19px;margin:36px 0 14px;}
  .article-body h3{font-size:17px;}
  .article-body p{margin-bottom:20px;}
  .related-section{padding-bottom:56px;}
  .related-head{flex-direction:column;align-items:flex-start;gap:12px;padding-top:36px;}
  .related-head h3{font-size:19px;}
  .related-grid{grid-template-columns:1fr;gap:20px;}
  .mini-cta{padding:48px 0;}
  .mini-cta h2{font-size:22px;}
  .mini-cta-actions{width:100%;}
  .mini-cta-actions .btn{flex:1 1 auto;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .site-footer{padding-top:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;width:100%;
    justify-content:flex-start;padding:0 20px;height:56px;
    box-shadow:none;border-top:1px solid rgba(255,255,255,.16);
  }
  .float-cta.is-visible{transform:none;}
  .float-cta:hover{transform:none;}
  .float-cta .fc-arrow{margin-left:auto;}
  .float-spacer{display:block;height:56px;}
}
@media (max-width:480px){
  .article-title{font-size:23px;}
  .badge{font-size:12px;}
  .card-body{padding:18px 18px 20px;}
  .card-title{font-size:17px;}
  .empty-card{padding:44px 20px;}
  .btn{padding:13px 22px;font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --graphite:#161A1C;
  --graphite-2:#242A2D;
  --amber:#B96B2E;
  --amber-dark:#A35C24;
  --sand:#E3B27A;
  --teal:#5C7A74;
  --bg:#F7F4EF;
  --bg-2:#EFE9E0;
  --bg-dark:#14181A;
  --text:#1D2224;
  --text-2:#5A6360;
  --text-3:#8A918D;
  --border:#DFD8CD;
  --border-dark:rgba(255,255,255,.12);
  --ok:#3F7D5A;
  --warn:#B4552F;
  --info:#4A6B7A;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:14px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(29,34,36,.06);
  --sh-2:0 8px 24px rgba(29,34,36,.10);
  --sh-3:0 12px 32px rgba(29,34,36,.16);
  --header-h:76px;
}
*,*::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:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--bg-2);}
[id]{scroll-margin-top:88px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,244,239,.92);
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(140%) blur(6px);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.nav-inner{display:flex;align-items:center;height:var(--header-h);gap:16px;}
.nav-side{display:flex;align-items:center;gap:26px;flex:1 1 0;min-width:0;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;white-space:nowrap;transition:color .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;background:var(--amber);
  transition:left .2s ease-out,right .2s ease-out;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after,.nav-link.active::after{left:0;right:0;}
.nav-link.active{color:var(--text);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:var(--r-sm);
  background:var(--graphite);display:inline-flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-mark svg{width:26px;height:26px;display:block;}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.2px;color:var(--graphite);white-space:nowrap;}
.brand-text em{font-style:normal;color:var(--amber);}
.nav-cta{padding:10px 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;
  position:relative;flex:0 0 auto;
}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--graphite);margin:0 auto;position:relative;transition:background .2s;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:22px;height:2px;background:var(--graphite);
  transition:transform .2s ease-out,top .2s ease-out;
}
.nav-toggle span::before{top:-7px;}
.nav-toggle span::after{top:7px;}
body.nav-open .nav-toggle span{background:transparent;}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg);}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg);}
.mobile-drawer{
  display:none;position:fixed;top:var(--header-h);left:0;right:0;z-index:95;
  background:var(--bg);border-bottom:1px solid var(--border);
  padding:4px 0 16px;box-shadow:var(--sh-2);
  max-height:calc(100vh - var(--header-h));overflow-y:auto;
}
body.nav-open .mobile-drawer{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;min-height:56px;padding:0 20px;
  font-size:15px;color:var(--text);border-bottom:1px solid var(--border);
}
.mobile-drawer a.active{color:var(--amber);font-weight:600;}
.mobile-drawer .btn{margin:16px 20px 0;justify-content:center;border-bottom:0;}
body.nav-open{overflow:hidden;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-md);border:1.5px solid transparent;
  padding:14px 26px;font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  text-align:center;
}
.btn:disabled,.btn.is-disabled{opacity:.45;pointer-events:none;cursor:not-allowed;}
.btn.is-loading{pointer-events:none;opacity:.8;}
.btn.is-loading::after{content:"…";letter-spacing:2px;}
.btn-primary{background:var(--amber);color:#fff;}
.btn-primary:hover{background:var(--amber-dark);box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--text);}
.btn-ghost:hover{border-color:var(--teal);background:rgba(92,122,116,.06);}
.btn-dark{background:transparent;border-color:var(--sand);color:#fff;}
.btn-dark:hover{background:var(--sand);color:var(--graphite);}
.btn-block{width:100%;}
.link-text{color:var(--amber);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px;}
.link-text:hover{text-decoration:underline;text-underline-offset:3px;}
.link-inline{color:var(--teal);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;}

/* ---------- badges / tags ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:2px 10px;border-radius:var(--r-sm);
  font-size:13px;font-weight:500;letter-spacing:.4px;
  background:rgba(185,107,46,.10);color:var(--amber-dark);
}
.badge-teal{background:rgba(92,122,116,.12);color:#44605B;}
.badge-ok{background:rgba(63,125,90,.12);color:var(--ok);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.4px;
  color:var(--text-2);background:#fff;border:1px solid var(--border);
  padding:4px 12px;border-radius:var(--r-sm);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--amber);}

/* ---------- hero ---------- */
.crumb{padding:20px 0 0;font-size:13px;color:var(--text-3);letter-spacing:.4px;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--amber);}
.crumb .sep{margin:0 8px;color:var(--text-3);}
.split-hero{padding:24px 0 96px;}
.split-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.split-hero h1{font-size:42px;line-height:1.3;letter-spacing:-.5px;margin:18px 0 20px;max-width:14em;}
.split-hero .lede{font-size:17px;color:var(--text-2);max-width:640px;}
.split-hero .lede + .lede{margin-top:10px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:32px;padding-top:24px;border-top:1px solid var(--border);}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);letter-spacing:.4px;}
.hero-points svg{width:18px;height:18px;stroke:var(--teal);fill:none;stroke-width:1.5;}
.hero-media{position:relative;}
.hero-media .frame{
  position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--border);
  aspect-ratio:4/3;background:var(--bg-2);box-shadow:var(--sh-1);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media .deco{
  position:absolute;right:-16px;bottom:-16px;width:80px;height:80px;border-radius:var(--r-lg);
  background:rgba(227,178,122,.28);z-index:-1;
}

/* ---------- section head ---------- */
.sec-head{max-width:720px;}
.sec-head h2{font-size:36px;line-height:1.3;letter-spacing:-.3px;margin:14px 0 12px;}
.sec-head p{color:var(--text-2);font-size:16px;max-width:640px;}
.sec-head.center{margin:0 auto;text-align:center;}
.sec-head.center p{margin:0 auto;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:36px;margin-top:56px;max-width:860px;}
.timeline::before{content:"";position:absolute;left:5px;top:10px;bottom:10px;width:1px;background:var(--border);}
.tl-item{position:relative;padding-bottom:40px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-36px;top:8px;width:11px;height:11px;border-radius:50%;
  background:var(--amber);box-shadow:0 0 0 4px var(--bg);
}
.section-alt .tl-item::before{box-shadow:0 0 0 4px var(--bg-2);}
.tl-step{font-size:13px;letter-spacing:.4px;color:var(--amber-dark);font-weight:600;}
.tl-item h3{font-size:18px;font-weight:600;margin:6px 0 8px;}
.tl-item p{color:var(--text-2);font-size:15px;max-width:620px;}
.tl-item p + p{margin-top:6px;}

/* ---------- scene grid ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:48px;}
.scene-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFC5B6;}
.scene-card .icon{
  width:40px;height:40px;border-radius:var(--r-md);background:rgba(185,107,46,.08);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.scene-card .icon svg{width:22px;height:22px;stroke:var(--amber);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.scene-card h3{font-size:20px;font-weight:600;margin-bottom:8px;}
.scene-card p{font-size:14px;color:var(--text-2);line-height:1.75;}
.scene-card ul{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}
.scene-card ul li{font-size:13px;color:var(--text-2);background:var(--bg-2);border-radius:var(--r-sm);padding:3px 10px;}

/* ---------- feature split ---------- */
.feature-split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-top:48px;}
.feature-media{border-radius:var(--r-lg);overflow:hidden;aspect-ratio:16/9;background:var(--bg-2);border:1px solid var(--border);}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.feature-media:hover img{transform:scale(1.02);}
.feature-copy h3{font-size:22px;font-weight:600;margin-bottom:12px;}
.feature-copy p{color:var(--text-2);font-size:15px;max-width:480px;}
.feature-copy p + p{margin-top:10px;}

/* ---------- list rows ---------- */
.list-rows{margin-top:40px;border-top:1px solid var(--border);}
.list-row{
  display:flex;align-items:flex-start;justify-content:space-between;gap:32px;
  padding:20px 16px;border-bottom:1px solid var(--border);
  transition:background .18s ease-out;
}
.list-row:hover{background:var(--bg-2);}
.list-row .lr-main{display:flex;gap:20px;align-items:baseline;min-width:0;}
.list-row .lr-num{font-size:15px;font-weight:700;color:var(--sand);letter-spacing:.5px;flex:0 0 auto;}
.list-row h3{font-size:18px;font-weight:600;}
.list-row .lr-desc{font-size:14px;color:var(--text-2);margin-top:4px;max-width:520px;}
.list-row .lr-side{font-size:14px;color:var(--text-2);flex:0 0 auto;text-align:right;white-space:nowrap;}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:2fr 3fr;gap:56px;align-items:start;}
.faq-intro{position:sticky;top:104px;}
.faq-intro h2{font-size:36px;line-height:1.3;letter-spacing:-.3px;margin-bottom:14px;}
.faq-intro p{color:var(--text-2);font-size:15px;max-width:320px;}
.faq-intro .btn{margin-top:24px;}
.faq-item{border-bottom:1px solid var(--border);}
.faq-item:first-child{border-top:1px solid var(--border);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:600;color:var(--text);transition:color .18s ease-out;
}
.faq-q:hover{color:var(--amber);}
.faq-item.open .faq-q{color:var(--amber);}
.faq-q .sign{position:relative;width:20px;height:20px;flex:0 0 auto;}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;background:currentColor;border-radius:1px;
  transition:transform .2s ease-out;
}
.faq-q .sign::before{left:9px;top:0;width:2px;height:20px;}
.faq-q .sign::after{top:9px;left:0;width:20px;height:2px;}
.faq-item.open .faq-q .sign::before{transform:rotate(45deg);}
.faq-item.open .faq-q .sign::after{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease-out;}
.faq-a p{font-size:15px;line-height:1.8;color:var(--text-2);padding:0 0 20px;max-width:620px;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;background:var(--bg-dark);color:#EFE9E0;
  padding:80px 0;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-80px;width:320px;height:320px;
  border:1px solid rgba(227,178,122,.14);border-radius:50%;
}
.cta-band .inner{position:relative;z-index:1;text-align:center;max-width:720px;margin:0 auto;}
.cta-band h2{font-size:32px;line-height:1.3;color:#fff;letter-spacing:-.2px;}
.cta-band p{margin-top:12px;color:rgba(239,233,224,.68);font-size:16px;}
.cta-band .actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:28px;}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-dark);color:#EFE9E0;padding:72px 0 24px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:32px;}
.footer-brand .brand-text{color:#EFE9E0;}
.footer-brand .brand-text em{color:var(--sand);}
.footer-brand .brand-mark{background:var(--graphite-2);border:1px solid var(--border-dark);}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.75;color:rgba(239,233,224,.62);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:#F7F4EF;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a,.footer-col ul li span{font-size:14px;color:rgba(239,233,224,.62);transition:color .18s ease-out;}
.footer-col ul li a:hover{color:var(--sand);}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--border-dark);
  display:flex;justify-content:space-between;gap:16px;font-size:13px;
  color:rgba(239,233,224,.5);flex-wrap:wrap;
}
.footer-bottom .copy-right{text-align:right;}

/* ---------- floating cta ---------- */
.fab-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:inline-flex;align-items:center;gap:10px;
  background:var(--amber);color:#fff;font-size:14px;font-weight:600;
  padding:14px 20px;border-radius:var(--r-md);box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease-out,transform .2s ease-out,background .18s ease-out,visibility .2s;
}
.fab-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.fab-cta:hover{background:var(--amber-dark);}
.fab-cta svg{width:16px;height:16px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- image fallback ---------- */
.img-fallback{background:var(--bg-2);display:flex;align-items:center;justify-content:center;}
.img-fallback::after{content:"图片暂不可用";font-size:13px;color:var(--text-3);}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .split-grid{gap:40px;}
  .split-hero h1{font-size:38px;}
}
@media (max-width:1024px){
  .section{padding:64px 0;}
  .nav-side{display:none;}
  .nav-toggle{display:block;}
  .nav-inner{justify-content:space-between;}
  .brand{position:absolute;left:50%;transform:translateX(-50%);}
  .nav-inner{position:relative;}
  .split-grid{grid-template-columns:1fr;gap:36px;}
  .split-hero h1{font-size:34px;max-width:100%;}
  .scene-grid{grid-template-columns:1fr;}
  .feature-split{grid-template-columns:1fr;gap:28px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .faq-intro{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .sec-head h2,.faq-intro h2{font-size:28px;}
  .cta-band h2{font-size:26px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .split-hero{padding:16px 0 48px;}
  .split-hero h1{font-size:30px;}
  .split-hero .lede{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-points{gap:14px 20px;}
  .hero-media .deco{display:none;}
  .timeline{padding-left:28px;margin-top:36px;}
  .timeline::before{left:4px;}
  .tl-item::before{left:-28px;}
  .tl-item{padding-bottom:32px;}
  .list-row{flex-direction:column;gap:8px;padding:18px 8px;}
  .list-row .lr-side{text-align:left;white-space:normal;}
  .list-row .lr-main{gap:12px;}
  .scene-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center;}
  .footer-bottom .copy-right{text-align:center;}
  .cta-band{padding:56px 0;}
  .fab-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:space-between;
    padding:16px 20px;box-shadow:none;border-top:1px solid var(--amber-dark);
  }
  .site-footer{padding-bottom:80px;}
}
@media (max-width:480px){
  .split-hero h1{font-size:26px;}
  .sec-head h2,.faq-intro h2{font-size:24px;}
  .faq-q{font-size:16px;}
  .brand-text{font-size:16px;}
  .brand-mark{width:32px;height:32px;}
  .brand-mark svg{width:22px;height:22px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --graphite:#161A1C;
  --graphite-2:#242A2D;
  --copper:#B96B2E;
  --copper-dark:#A35C24;
  --sand:#E3B27A;
  --teal:#5C7A74;
  --bg:#F7F4EF;
  --bg-2:#EFE9E0;
  --bg-dark:#14181A;
  --text:#1D2224;
  --text-2:#5A6360;
  --text-3:#8A918D;
  --line:#DFD8CD;
  --line-dark:rgba(255,255,255,.12);
  --ok:#3F7D5A;
  --warn:#B4552F;
  --info:#4A6B7A;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:14px;
  --r-xl:20px;
  --sh1:0 1px 2px rgba(29,34,36,.06);
  --sh2:0 8px 24px rgba(29,34,36,.10);
  --sh3:0 12px 32px rgba(29,34,36,.16);
  --s4:4px;--s8:8px;--s12:12px;--s16:16px;--s24:24px;--s32:32px;--s48:48px;--s64:64px;--s96:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--copper);text-decoration:none;}
a:hover{color:var(--copper-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--copper);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:var(--r-md);
  border:1.5px solid transparent;cursor:pointer;
  transition:background-color 180ms ease-out,color 180ms ease-out,border-color 180ms ease-out,transform 180ms ease-out,box-shadow 180ms ease-out;
  min-height:48px;
}
.btn-primary{background:var(--copper);color:#fff;}
.btn-primary:hover{background:var(--copper-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh1);}
.btn-secondary{background:transparent;border-color:var(--line);color:var(--text);}
.btn-secondary:hover{border-color:var(--teal);background:rgba(92,122,116,.06);color:var(--text);}
.btn-dark{background:transparent;border-color:var(--sand);color:#fff;}
.btn-dark:hover{background:var(--sand);color:var(--graphite);}
.btn:disabled,.btn.is-disabled{opacity:.45;pointer-events:none;cursor:not-allowed;}
.btn.is-loading{pointer-events:none;opacity:.8;}
.btn.is-loading::after{content:"…";letter-spacing:2px;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:2px 10px;
  border-radius:var(--r-sm);font-size:13px;line-height:1.6;letter-spacing:.4px;
  background:rgba(185,107,46,.10);color:var(--copper-dark);
}
.badge-teal{background:rgba(92,122,116,.12);color:#41605A;}
.badge-ok{background:rgba(63,125,90,.12);color:var(--ok);}
.link-arrow{font-size:15px;font-weight:600;color:var(--copper);display:inline-flex;align-items:center;gap:6px;}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px;}
.link-arrow svg{width:16px;height:16px;transition:transform 180ms ease-out;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,239,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow 180ms ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh2);}
.nav-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.nav-side{display:flex;align-items:center;gap:24px;flex:1 1 0;min-width:0;}
.nav-side.left{justify-content:flex-start;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;white-space:nowrap;transition:color 180ms ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--copper);
  transform:scaleX(0);transform-origin:center;transition:transform 200ms ease-out;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.brand-mark{
  width:36px;height:36px;border-radius:8px;background:var(--graphite);
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-mark svg{width:24px;height:24px;display:block;}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.5px;color:var(--text);line-height:1;}
.brand-text em{font-style:normal;}
.brand:hover .brand-text{color:var(--graphite-2);}
.nav-cta{padding:11px 20px;min-height:44px;font-size:15px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;cursor:pointer;position:relative;flex:0 0 auto;
}
.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after{
  content:"";position:absolute;left:50%;width:18px;height:2px;background:var(--text);
  transform:translateX(-50%);transition:transform 180ms ease-out,opacity 180ms ease-out;
}
.nav-toggle::before{top:15px;}
.nav-toggle span{top:21px;}
.nav-toggle::after{top:27px;}
.nav-toggle[aria-expanded="true"]::before{transform:translateX(-50%) rotate(45deg);top:21px;}
.nav-toggle[aria-expanded="true"] span{opacity:0;}
.nav-toggle[aria-expanded="true"]::after{transform:translateX(-50%) rotate(-45deg);top:21px;}
.mobile-drawer{
  display:none;position:absolute;left:0;right:0;top:100%;
  background:var(--bg);border-bottom:1px solid var(--line);box-shadow:var(--sh2);
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .container{padding-top:8px;padding-bottom:24px;}
.drawer-link{
  display:flex;align-items:center;min-height:56px;font-size:16px;font-weight:500;
  color:var(--text);border-bottom:1px solid var(--line);
}
.drawer-link:hover{color:var(--copper);}
.drawer-cta{width:100%;margin-top:20px;}
body.lock{overflow:hidden;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 20px;border-radius:var(--r-md);
  background:var(--copper);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh3);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity 200ms ease-out,transform 200ms ease-out,background-color 180ms ease-out;
}
.float-cta svg{width:16px;height:16px;}
.float-cta.is-visible{opacity:1;pointer-events:auto;transform:translateY(0);}
.float-cta:hover{background:var(--copper-dark);color:#fff;transform:translateY(-1px);}

/* ---------- 分类页头 ---------- */
.page-hero{padding:56px 0 64px;background:linear-gradient(180deg,var(--bg) 0%,var(--bg) 62%,var(--bg-2) 100%);}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);letter-spacing:.4px;margin-bottom:24px;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--copper);}
.breadcrumb .sep{color:var(--text-3);}
.page-hero h1{
  font-size:52px;line-height:1.25;font-weight:700;letter-spacing:-.5px;color:var(--text);
  max-width:900px;margin-bottom:20px;
}
.page-hero .lead{max-width:640px;font-size:17px;line-height:1.85;color:var(--text-2);margin-bottom:12px;}
.page-hero .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:24px;margin-top:32px;}
.hero-meta .hm-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);}
.hero-meta svg{width:20px;height:20px;stroke:var(--teal);}

/* ---------- 板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--bg-2);}
.section-dark{background:var(--graphite);color:#EFE9E0;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:36px;line-height:1.3;font-weight:700;letter-spacing:-.3px;margin-bottom:14px;}
.section-head p{font-size:16px;line-height:1.8;color:var(--text-2);max-width:640px;}
.section-dark .section-head h2{color:#fff;}
.section-dark .section-head p{color:rgba(239,233,224,.72);}

/* ---------- 主体 3/9 布局 ---------- */
.layout-3-9{display:grid;grid-template-columns:3fr 9fr;gap:32px;align-items:start;}
.side-card{
  position:sticky;top:104px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh1);
}
.side-card h3{font-size:18px;font-weight:600;margin-bottom:16px;line-height:1.5;}
.side-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:24px;}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 0;font-size:14px;color:var(--text-2);border-bottom:1px solid var(--line);
  transition:color 180ms ease-out,padding-left 180ms ease-out;
}
.side-nav a:hover{color:var(--copper);padding-left:4px;}
.side-nav a svg{width:14px;height:14px;stroke:currentColor;flex:0 0 auto;}
.side-card .btn{width:100%;}
.side-note{margin-top:16px;font-size:13px;line-height:1.7;color:var(--text-3);}
.side-note strong{color:var(--text-2);font-weight:600;}

.svc-list{display:flex;flex-direction:column;gap:24px;}
.svc-card{
  display:grid;grid-template-columns:40% 1fr;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh1);
  transition:transform 180ms ease-out,box-shadow 180ms ease-out;
  scroll-margin-top:88px;
}
.svc-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);}
.svc-media{position:relative;background:var(--bg-2);overflow:hidden;min-height:200px;}
.svc-media img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease-out;}
.svc-card:hover .svc-media img{transform:scale(1.02);}
.svc-body{padding:24px;display:flex;flex-direction:column;gap:10px;align-items:flex-start;}
.svc-body h3{font-size:22px;line-height:1.4;font-weight:600;}
.svc-body p{font-size:15px;line-height:1.8;color:var(--text-2);}
.svc-body .link-arrow{margin-top:auto;}

/* ---------- 交付方式 ---------- */
.deliver-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.deliver-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:var(--bg-2);aspect-ratio:4/3;}
.deliver-media img{width:100%;height:100%;object-fit:cover;}
.row-list{border-top:1px solid var(--line);}
.row-list li{
  display:flex;align-items:flex-start;justify-content:space-between;gap:24px;
  padding:20px 12px;border-bottom:1px solid var(--line);
  transition:background-color 180ms ease-out;
}
.row-list li:hover{background:var(--bg-2);}
.row-list .row-title{font-size:18px;font-weight:600;line-height:1.5;flex:0 0 auto;}
.row-list .row-desc{font-size:14px;line-height:1.75;color:var(--text-2);text-align:right;max-width:360px;}

/* ---------- 响应时效 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
.metric-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh1);
  transition:transform 180ms ease-out,box-shadow 180ms ease-out;
}
.metric-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);}
.metric-card .num{font-size:40px;font-weight:700;color:var(--copper);line-height:1.2;margin-bottom:8px;}
.metric-card .num small{font-size:16px;font-weight:600;color:var(--text-2);margin-left:4px;}
.metric-card h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.metric-card p{font-size:14px;line-height:1.75;color:var(--text-2);}

/* ---------- 处理流程 ---------- */
.process-list{border-top:1px solid var(--line);}
.process-item{
  display:grid;grid-template-columns:88px 1fr;gap:24px;align-items:start;
  padding:28px 12px;border-bottom:1px solid var(--line);
  transition:background-color 180ms ease-out;
  scroll-margin-top:88px;
}
.process-item:hover{background:var(--bg-2);}
.process-item .step-no{font-size:44px;font-weight:700;color:var(--sand);line-height:1;}
.process-item h3{font-size:22px;font-weight:600;margin-bottom:8px;}
.process-item p{font-size:15px;line-height:1.8;color:var(--text-2);max-width:640px;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 6fr;gap:48px;align-items:start;}
.faq-aside{position:sticky;top:104px;}
.faq-aside h2{font-size:36px;line-height:1.3;font-weight:700;margin-bottom:14px;}
.faq-aside p{font-size:15px;line-height:1.8;color:var(--text-2);margin-bottom:24px;max-width:340px;}
.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:16px;
  padding:20px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:600;color:var(--text);line-height:1.5;
  transition:color 180ms ease-out;
}
.faq-q:hover{color:var(--copper);}
.faq-item.is-open .faq-q{color:var(--copper);}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 auto;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;transition:transform 180ms ease-out;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);}
.faq-a{display:none;padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:600px;}
.faq-item.is-open .faq-a{display:block;padding-top:12px;}

/* ---------- 窄版 CTA ---------- */
.cta-band{background:var(--bg-dark);color:#EFE9E0;padding:48px 0;position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;
  border:1px solid rgba(227,178,122,.18);border-radius:50%;pointer-events:none;
}
.cta-band-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;position:relative;z-index:1;}
.cta-band h2{font-size:26px;line-height:1.4;font-weight:700;color:#fff;margin-bottom:8px;}
.cta-band p{font-size:15px;line-height:1.8;color:rgba(239,233,224,.72);max-width:560px;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-dark);color:#EFE9E0;padding:64px 0 32px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:32px;}
.footer-brand .brand{color:#EFE9E0;margin-bottom:16px;}
.footer-brand .brand-text{color:#EFE9E0;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(239,233,224,.62);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:#EFE9E0;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col span{font-size:14px;line-height:1.75;color:rgba(239,233,224,.62);}
.footer-col a:hover{color:var(--sand);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line-dark);
  font-size:13px;color:rgba(239,233,224,.50);
}
.footer-bottom .copy-right{text-align:right;}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .metric-grid{grid-template-columns:repeat(4,1fr);}
}
@media (max-width:1024px){
  .nav-side{display:none;}
  .nav-toggle{display:block;}
  .nav-inner{justify-content:space-between;height:68px;}
  .brand{position:absolute;left:50%;transform:translateX(-50%);}
  .brand-text{font-size:16px;}
  .section{padding:64px 0;}
  .page-hero{padding:40px 0 48px;}
  .page-hero h1{font-size:40px;}
  .layout-3-9{grid-template-columns:1fr;gap:24px;}
  .side-card{position:static;}
  .side-nav{flex-direction:row;flex-wrap:nowrap;overflow-x:auto;gap:8px;padding-bottom:8px;margin-bottom:16px;}
  .side-nav a{border-bottom:0;border:1px solid var(--line);border-radius:var(--r-md);padding:8px 14px;white-space:nowrap;}
  .side-nav a svg{display:none;}
  .side-nav a:hover{padding-left:14px;border-color:var(--teal);}
  .side-card .btn{width:auto;}
  .deliver-grid{grid-template-columns:1fr;gap:24px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .faq-grid{grid-template-columns:1fr;gap:24px;}
  .faq-aside{position:static;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .page-hero h1{font-size:34px;}
  .page-hero .lead{font-size:16px;}
  .section-head h2,.faq-aside h2{font-size:26px;}
  .svc-card{grid-template-columns:1fr;}
  .svc-media{min-height:0;aspect-ratio:16/9;}
  .svc-body{padding:20px;}
  .svc-body h3{font-size:19px;}
  .row-list li{flex-direction:column;gap:6px;align-items:flex-start;}
  .row-list .row-desc{text-align:left;max-width:none;}
  .metric-grid{grid-template-columns:1fr;gap:16px;}
  .process-item{grid-template-columns:56px 1fr;gap:16px;padding:24px 0;}
  .process-item .step-no{font-size:28px;}
  .process-item h3{font-size:19px;}
  .cta-band{padding:40px 0;}
  .cta-band h2{font-size:22px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left;}
  .footer-bottom .copy-right{text-align:left;}
  .float-cta{
    left:0;right:0;bottom:0;width:100%;height:56px;border-radius:0;
    justify-content:flex-start;padding:0 16px;box-shadow:none;
    border-top:1px solid rgba(255,255,255,.16);
    opacity:1;pointer-events:auto;transform:none;
  }
  .float-cta:hover{transform:none;}
  body{padding-bottom:56px;}
}
@media (max-width:480px){
  .page-hero h1{font-size:30px;}
  .hero-actions .btn{width:100%;}
  .brand-text{font-size:15px;}
  .brand-mark{width:32px;height:32px;border-radius:7px;}
  .faq-q{font-size:16px;}
  .metric-card .num{font-size:32px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category3 */
:root{
  --graphite:#161A1C;
  --graphite-2:#242A2D;
  --amber:#B96B2E;
  --amber-dark:#A35C24;
  --sand:#E3B27A;
  --teal:#5C7A74;
  --bg:#F7F4EF;
  --bg-2:#EFE9E0;
  --bg-dark:#14181A;
  --text:#1D2224;
  --text-2:#5A6360;
  --text-3:#8A918D;
  --line:#DFD8CD;
  --line-dark:rgba(255,255,255,.12);
  --ok:#3F7D5A;
  --warn:#B4552F;
  --info:#4A6B7A;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:14px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(29,34,36,.06);
  --sh-2:0 8px 24px rgba(29,34,36,.10);
  --sh-3:0 12px 32px rgba(29,34,36,.16);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--teal);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--amber);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--bg-2);}
[id]{scroll-margin-top:88px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;
  padding:14px 26px;border-radius:var(--r-md);
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  min-height:48px;
}
.btn-primary{background:var(--amber);color:#fff;border:1.5px solid var(--amber);}
.btn-primary:hover{background:var(--amber-dark);border-color:var(--amber-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--text);border:1.5px solid var(--line);}
.btn-ghost:hover{border-color:var(--teal);background:rgba(92,122,116,.06);color:var(--text);}
.btn-dark-ghost{background:transparent;color:#fff;border:1.5px solid var(--sand);}
.btn-dark-ghost:hover{background:var(--sand);color:var(--graphite);border-color:var(--sand);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.btn.is-loading{pointer-events:none;opacity:.75;}
.btn.is-loading::after{content:"…";letter-spacing:2px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--amber);}
.link-arrow:hover{color:var(--amber-dark);text-decoration:underline;text-underline-offset:3px;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;border-radius:var(--r-sm);
  font-size:13px;line-height:1;letter-spacing:.4px;
  background:rgba(185,107,46,.10);color:var(--amber-dark);
}
.badge-teal{background:rgba(92,122,116,.12);color:#43605A;}
.badge-ok{background:rgba(63,125,90,.12);color:var(--ok);}
.badge-warn{background:rgba(180,85,47,.12);color:var(--warn);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,239,.92);
  backdrop-filter:saturate(120%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.scrolled{box-shadow:var(--sh-2);}
.nav-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:16px;height:76px;
}
.nav-side{display:flex;align-items:center;gap:24px;}
.nav-side.left{justify-content:flex-start;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:8px 2px;white-space:nowrap;transition:color .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--amber);transition:left .2s ease-out,right .2s ease-out;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after,.nav-link.active::after{left:0;right:0;}
.nav-link.active{color:var(--text);}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:8px;background:var(--graphite);
  flex:0 0 auto;
}
.brand-mark svg{width:26px;height:26px;display:block;}
.brand-text{
  font-size:18px;font-weight:700;letter-spacing:.2px;color:var(--text);
  white-space:nowrap;
}
.brand-text em{font-style:normal;color:var(--amber);}
.nav-cta{padding:11px 20px;min-height:42px;font-size:14px;}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;align-items:center;border-radius:var(--r-sm);
  grid-column:3;justify-self:end;
}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text);transition:transform .2s ease-out,opacity .2s ease-out;}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-toggle span:nth-child(3){margin-top:0;}

.mobile-drawer{
  max-height:0;overflow:hidden;background:var(--bg);
  border-bottom:1px solid transparent;
  transition:max-height .3s ease-out,border-color .3s ease-out;
}
body.nav-open .mobile-drawer{max-height:560px;border-bottom-color:var(--line);}
.drawer-inner{padding:8px 24px 24px;}
.drawer-link{
  display:flex;align-items:center;min-height:56px;
  border-bottom:1px solid var(--line);
  font-size:15px;font-weight:500;color:var(--text);
}
.drawer-link.active{color:var(--amber);}
.drawer-cta{margin-top:20px;}

/* ============ 分类页头 ============ */
.page-head{padding:56px 0 64px;border-bottom:1px solid var(--line);}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);letter-spacing:.4px;margin-bottom:24px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--amber);}
.breadcrumb .sep{color:var(--text-3);}
.page-head h1{
  font-size:52px;line-height:1.25;font-weight:700;letter-spacing:-.5px;
  max-width:900px;margin-bottom:20px;
}
.page-head h1 .sub{
  display:block;font-size:20px;font-weight:600;letter-spacing:0;
  color:var(--text-2);margin-top:14px;
}
.page-head .lead{
  max-width:640px;font-size:16px;line-height:1.85;color:var(--text-2);
  margin-bottom:32px;
}
.page-head .lead p + p{margin-top:10px;}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 卡带区 ============ */
.rail-section{padding:72px 0 88px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:32px;flex-wrap:wrap;
}
.section-head h2{font-size:36px;line-height:1.3;font-weight:700;letter-spacing:-.3px;}
.section-head .desc{font-size:15px;color:var(--text-2);max-width:560px;margin-top:10px;}
.rail-wrap{position:relative;}
.rail-wrap::before,.rail-wrap::after{
  content:"";position:absolute;top:0;bottom:0;width:56px;pointer-events:none;z-index:2;
}
.rail-wrap::before{left:0;background:linear-gradient(to right,var(--bg),rgba(247,244,239,0));}
.rail-wrap::after{right:0;background:linear-gradient(to left,var(--bg),rgba(247,244,239,0));}
.card-rail{
  display:flex;gap:24px;overflow-x:auto;padding:6px 4px 24px;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;-ms-overflow-style:none;
}
.card-rail::-webkit-scrollbar{display:none;}
.rail-card{
  flex:0 0 320px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
  display:flex;flex-direction:column;
}
.rail-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.rail-card .thumb{
  position:relative;aspect-ratio:16 / 9;overflow:hidden;background:var(--bg-2);
}
.rail-card .thumb img{
  width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;
}
.rail-card:hover .thumb img{transform:scale(1.02);}
.rail-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rail-card h3{font-size:20px;line-height:1.4;font-weight:600;}
.rail-card p{font-size:14px;line-height:1.75;color:var(--text-2);}
.rail-card .foot{margin-top:auto;padding-top:6px;}

/* ============ 大编号列表 ============ */
.biglist-section{padding:0 0 96px;}
.biglist{border-top:1px solid var(--line);}
.big-row{
  display:grid;grid-template-columns:96px 1fr;gap:24px;align-items:start;
  padding:32px 16px;border-bottom:1px solid var(--line);
  transition:background-color .18s ease-out;
}
.big-row:hover{background:var(--bg-2);}
.big-num{
  font-size:44px;line-height:1;font-weight:700;color:var(--sand);
  font-variant-numeric:tabular-nums;letter-spacing:-1px;
}
.big-body h3{font-size:22px;line-height:1.4;font-weight:600;margin-bottom:10px;}
.big-body p{font-size:15px;line-height:1.8;color:var(--text-2);max-width:720px;}
.big-body .link-arrow{margin-top:12px;}

/* ============ 模块列表行 ============ */
.rowlist{border-top:1px solid var(--line);}
.row-item{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:20px 16px;border-bottom:1px solid var(--line);
  transition:background-color .18s ease-out;
}
.row-item:hover{background:#fff;}
.row-item .name{font-size:18px;font-weight:600;}
.row-item .note{font-size:14px;color:var(--text-2);margin-top:2px;}
.row-item .tag{
  flex:0 0 auto;font-size:13px;letter-spacing:.4px;color:var(--teal);
  border:1px solid rgba(92,122,116,.35);border-radius:var(--r-sm);
  padding:2px 10px;height:24px;display:inline-flex;align-items:center;
}

/* ============ 深色指标带 ============ */
.dark-band{
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(227,178,122,.11), rgba(227,178,122,0) 62%),
    var(--graphite);
  color:#EFE9E0;padding:96px 0;
}
.dark-band h2{font-size:36px;line-height:1.3;font-weight:700;color:#fff;letter-spacing:-.3px;}
.dark-band .band-desc{font-size:15px;line-height:1.8;color:rgba(239,233,224,.66);max-width:600px;margin-top:12px;}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:48px;
}
.stat-card{
  border:1px solid var(--line-dark);border-radius:var(--r-lg);
  padding:24px;background:rgba(255,255,255,.02);
}
.stat-num{
  font-size:40px;line-height:1.1;font-weight:700;color:var(--sand);
  font-variant-numeric:tabular-nums;letter-spacing:-1px;
}
.stat-num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--sand);}
.stat-card h3{font-size:16px;font-weight:600;color:#fff;margin-top:12px;}
.stat-card p{font-size:14px;line-height:1.7;color:rgba(239,233,224,.60);margin-top:6px;}
.band-foot{font-size:13px;color:rgba(239,233,224,.52);margin-top:24px;letter-spacing:.4px;}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:40% 60%;gap:48px;align-items:start;}
.faq-side{position:sticky;top:104px;}
.faq-side h2{font-size:36px;line-height:1.3;font-weight:700;letter-spacing:-.3px;}
.faq-side p{font-size:15px;line-height:1.8;color:var(--text-2);margin-top:14px;max-width:340px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;text-align:left;padding:20px 4px;
  font-size:18px;font-weight:600;color:var(--text);
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--amber);}
.faq-item.open .faq-q{color:var(--amber);}
.faq-q .plus{
  flex:0 0 auto;width:20px;height:20px;position:relative;
  transition:transform .2s ease-out;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:currentColor;border-radius:1px;
}
.faq-q .plus::before{left:9px;top:0;width:2px;height:20px;}
.faq-q .plus::after{top:9px;left:0;height:2px;width:20px;}
.faq-item.open .faq-q .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease-out;}
.faq-item.open .faq-a{max-height:340px;}
.faq-a p{font-size:15px;line-height:1.8;color:var(--text-2);padding:0 4px 20px;max-width:620px;}

/* ============ 窄版 CTA ============ */
.cta-band{
  background:
    radial-gradient(90% 120% at 92% 110%, rgba(227,178,122,.10), rgba(227,178,122,0) 60%),
    var(--bg-dark);
  color:#EFE9E0;padding:56px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff;letter-spacing:-.2px;}
.cta-band .cta-note{font-size:15px;line-height:1.75;color:rgba(239,233,224,.66);margin-top:10px;max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 20px;border-radius:var(--r-md);
  background:var(--amber);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease-out,transform .2s ease-out,background-color .18s ease-out,visibility .2s;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--amber-dark);color:#fff;transform:translateY(-1px);}
.float-cta svg{width:16px;height:16px;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-dark);color:#EFE9E0;padding:64px 0 32px;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;
  padding-bottom:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text{color:#EFE9E0;}
.footer-brand .brand-text em{color:var(--sand);}
.footer-brand .brand-mark{background:var(--graphite-2);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(239,233,224,.62);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:#EFE9E0;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:14px;line-height:1.7;color:rgba(239,233,224,.62);}
.footer-col a:hover{color:var(--sand);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line-dark);padding-top:24px;
  font-size:13px;color:rgba(239,233,224,.52);letter-spacing:.4px;
}
.footer-bottom .copy-right{text-align:right;}

/* ============ 图片失败占位 ============ */
.img-fallback{background:var(--bg-2);display:flex;align-items:center;justify-content:center;}
.img-fallback::after{
  content:"图片加载失败";font-size:13px;color:var(--text-3);letter-spacing:.4px;
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .page-head h1{font-size:46px;}
}
@media (max-width:1024px){
  .nav-side{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:64px 0;}
  .dark-band{padding:64px 0;}
  .page-head h1{font-size:38px;}
  .page-head h1 .sub{font-size:18px;}
  .section-head h2,.dark-band h2,.faq-side h2{font-size:28px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .faq-side{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .big-row{grid-template-columns:80px 1fr;}
  .big-num{font-size:36px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section-tight{padding:40px 0;}
  .rail-section{padding:48px 0 56px;}
  .biglist-section{padding-bottom:64px;}
  .dark-band{padding:48px 0;}
  .page-head{padding:32px 0 40px;}
  .page-head h1{font-size:34px;letter-spacing:-.3px;}
  .page-head h1 .sub{font-size:17px;margin-top:10px;}
  .section-head h2,.dark-band h2,.faq-side h2{font-size:26px;}
  .brand-text{font-size:16px;}
  .rail-card{flex:0 0 268px;}
  .big-row{grid-template-columns:56px 1fr;gap:16px;padding:24px 8px;}
  .big-num{font-size:28px;}
  .big-body h3{font-size:19px;}
  .row-item{flex-direction:column;align-items:flex-start;gap:8px;}
  .stats-grid{grid-template-columns:1fr;gap:16px;}
  .cta-band{padding:48px 0;}
  .cta-band h2{font-size:24px;}
  .faq-q{font-size:17px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left;}
  .footer-bottom .copy-right{text-align:left;}
  .float-cta{
    right:0;left:0;bottom:0;width:100%;border-radius:0;
    padding:0 16px;height:56px;justify-content:space-between;
    border-top:1px solid rgba(255,255,255,.16);
    box-shadow:none;transform:translateY(100%);
  }
  .float-cta.show{transform:translateY(0);}
  .float-cta:hover{transform:translateY(0);}
}
@media (max-width:520px){
  .page-head h1{font-size:30px;}
  .btn{padding:13px 20px;width:100%;}
  .head-actions,.cta-actions{width:100%;}
  .nav-cta{width:auto;}
  .rail-card{flex:0 0 240px;}
  .stat-num{font-size:34px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category4 */
:root{
  --ink:#161A1C;
  --ink-2:#242A2D;
  --amber:#B96B2E;
  --amber-dark:#A35C24;
  --sand:#E3B27A;
  --teal:#5C7A74;
  --bg:#F7F4EF;
  --bg-2:#EFE9E0;
  --bg-deep:#14181A;
  --text:#1D2224;
  --text-2:#5A6360;
  --text-3:#8A918D;
  --line:#DFD8CD;
  --line-dark:rgba(255,255,255,.12);
  --ok:#3F7D5A;
  --warn:#B4552F;
  --info:#4A6B7A;
  --r-s:6px;
  --r-m:10px;
  --r-l:14px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(29,34,36,.06);
  --sh-2:0 8px 24px rgba(29,34,36,.10);
  --sh-3:0 12px 32px rgba(29,34,36,.16);
  --ease:180ms ease-out;
  --nav-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding-left:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit}
input,textarea,select{font-family:inherit;font-size:16px}
svg{display:block}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0}
.section--alt{background:var(--bg-2)}
.section--dark{background:var(--ink);color:#EFE9E0}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,244,239,.92);
  backdrop-filter:saturate(120%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.nav-inner{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.nav-side{display:flex;align-items:center;gap:28px;flex:1}
.nav-side.right{justify-content:flex-end}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
  transition:color var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:0;
  height:2px;
  background:var(--amber);
  transform:translateX(-50%);
  transition:width 200ms ease-out;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{width:100%}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  padding:4px 6px;
  border-radius:var(--r-m);
}
.brand-mark{
  width:36px;height:36px;
  border-radius:10px;
  background:var(--ink);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-mark svg{width:26px;height:26px}
.brand-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:.2px;
  color:var(--ink);
  line-height:1;
}
.brand-text em{font-style:normal;font-weight:600;color:var(--amber)}
.nav-cta{padding:10px 20px;font-size:15px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:var(--r-m);
}
.nav-toggle span{
  position:relative;
  display:block;
  width:22px;height:2px;
  background:var(--ink);
  transition:background var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;left:0;
  width:22px;height:2px;
  background:var(--ink);
  transition:transform var(--ease),top var(--ease);
}
.nav-toggle span::before{top:-7px}
.nav-toggle span::after{top:7px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

.mobile-drawer{
  display:none;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  overflow:hidden;
  max-height:0;
  transition:max-height 260ms ease-out;
}
.mobile-drawer.is-open{max-height:520px}
.mobile-drawer .container{padding-top:8px;padding-bottom:16px}
.drawer-link{
  display:flex;
  align-items:center;
  min-height:56px;
  font-size:16px;
  font-weight:500;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--amber)}
.drawer-cta{width:100%;margin-top:16px;justify-content:center}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  padding:14px 26px;
  border-radius:var(--r-m);
  border:1.5px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  cursor:pointer;
  text-align:center;
}
.btn-primary{background:var(--amber);color:#fff}
.btn-primary:hover{background:var(--amber-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--teal);background:rgba(92,122,116,.06)}
.btn-dark{background:transparent;color:#fff;border-color:var(--sand)}
.btn-dark:hover{background:var(--sand);color:var(--ink);transform:translateY(-1px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;pointer-events:none;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.8}
.btn.is-loading::after{
  content:"…";
  letter-spacing:1px;
}

/* ---------- link / badge / tags ---------- */
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--amber);
  transition:color var(--ease);
}
.link-arrow:hover{color:var(--amber-dark)}
.link-arrow:hover .arrow{transform:translateX(3px)}
.arrow{transition:transform var(--ease)}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:2px 10px;
  border-radius:var(--r-s);
  font-size:13px;
  letter-spacing:.4px;
  background:rgba(185,107,46,.10);
  color:var(--amber-dark);
}
.badge-teal{background:rgba(92,122,116,.12);color:var(--teal)}
.badge-ok{background:rgba(63,125,90,.12);color:var(--ok)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.4px;
  color:var(--amber-dark);
  background:rgba(185,107,46,.10);
  padding:6px 12px;
  border-radius:var(--r-s);
}

/* ---------- page head ---------- */
.page-head{
  padding:64px 0 72px;
  background:
    radial-gradient(600px 260px at 78% 0%, rgba(227,178,122,.18), transparent 70%),
    var(--bg);
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-2);
  margin-bottom:24px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-2);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--amber)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text)}
.page-head-inner{max-width:860px;margin:0 auto;text-align:center}
.page-title{
  font-size:52px;
  line-height:1.25;
  letter-spacing:-.5px;
  font-weight:700;
  color:var(--ink);
  margin:18px 0 20px;
}
.page-title .hl{color:var(--amber)}
.page-lede{
  font-size:17px;
  line-height:1.8;
  color:var(--text-2);
  max-width:640px;
  margin:0 auto 12px;
}
.page-lede + .page-lede{margin-top:4px}
.page-head-actions{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  margin-top:32px;
  flex-wrap:wrap;
}

/* ---------- section heading ---------- */
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-title{
  font-size:36px;
  line-height:1.3;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.2px;
}
.sec-sub{
  margin-top:12px;
  font-size:15px;
  color:var(--text-2);
  max-width:640px;
}
.sec-head.center .sec-sub{margin-left:auto;margin-right:auto}
.section--dark .sec-title{color:#fff}

/* ---------- quad grid ---------- */
.quad-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.quad-card{
  background:var(--bg-2);
  border:1px solid transparent;
  border-radius:var(--r-l);
  padding:32px;
  transition:background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.quad-card:hover{
  background:#fff;
  border-color:var(--line);
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.quad-icon{
  width:48px;height:48px;
  display:flex;align-items:center;justify-content:center;
  border-radius:var(--r-m);
  border:1.5px solid var(--teal);
  color:var(--teal);
  margin-bottom:20px;
  transition:border-color var(--ease),color var(--ease);
}
.quad-card:hover .quad-icon{border-color:var(--amber);color:var(--amber)}
.quad-index{
  font-size:13px;
  letter-spacing:.4px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
  margin-bottom:6px;
}
.quad-card h3{
  font-size:22px;
  line-height:1.4;
  font-weight:600;
  color:var(--ink);
  margin-bottom:10px;
}
.quad-card p{
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  max-width:520px;
}
.quad-card .link-arrow{margin-top:16px}

/* ---------- split rows ---------- */
.split-stack{display:flex;flex-direction:column;gap:80px;margin-top:72px}
.split-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.split-media{
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-2);
  aspect-ratio:16/9;
}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-copy{max-width:480px}
.split-copy h3{
  font-size:26px;
  line-height:1.35;
  font-weight:700;
  color:var(--ink);
  margin:14px 0 14px;
}
.split-copy p{font-size:15px;color:var(--text-2);margin-bottom:12px}
.split-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.split-list li{
  display:flex;
  gap:10px;
  font-size:15px;
  color:var(--text-2);
  align-items:flex-start;
}
.split-list li svg{flex:0 0 auto;margin-top:5px;color:var(--teal)}
.split-row.reverse .split-media{order:2}
.split-row.reverse .split-copy{order:1}

/* ---------- rows list ---------- */
.row-list{border-top:1px solid var(--line)}
.row-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:20px 16px;
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.row-item:hover{background:var(--bg-2)}
.row-main{min-width:0}
.row-main h4{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  line-height:1.5;
}
.row-main p{
  margin-top:4px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
}
.row-side{
  flex:0 0 auto;
  display:flex;
  align-items:center;
  gap:24px;
}
.row-price{
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.row-note{font-size:13px;color:var(--text-3)}

/* ---------- faq ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:38% 1fr;
  gap:56px;
  align-items:start;
}
.faq-aside{position:sticky;top:calc(var(--nav-h) + 32px)}
.faq-aside .sec-sub{margin-top:14px}
.faq-aside .btn{margin-top:24px}
.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 0;
  text-align:left;
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  line-height:1.5;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--amber)}
.faq-item.is-open .faq-q{color:var(--amber)}
.faq-plus{
  position:relative;
  flex:0 0 auto;
  width:20px;height:20px;
  transition:transform 200ms ease-out;
}
.faq-plus::before,
.faq-plus::after{
  content:"";
  position:absolute;
  top:9px;left:0;
  width:20px;height:2px;
  background:currentColor;
}
.faq-plus::after{transform:rotate(90deg)}
.faq-item.is-open .faq-plus{transform:rotate(45deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 240ms ease-out;
}
.faq-a-inner{
  padding:0 32px 20px 0;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--bg-deep);
  color:#EFE9E0;
  padding:96px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-80px;
  width:320px;height:320px;
  border:1px solid rgba(227,178,122,.08);
  border-radius:28px;
  transform:rotate(18deg);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:1;
  max-width:720px;
  margin:0 auto;
  text-align:center;
}
.cta-inner h2{
  font-size:36px;
  line-height:1.3;
  font-weight:700;
  color:#fff;
  letter-spacing:-.2px;
}
.cta-inner p{
  margin-top:14px;
  font-size:16px;
  line-height:1.8;
  color:rgba(239,233,224,.72);
}
.cta-actions{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  margin-top:32px;
  flex-wrap:wrap;
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-deep);
  color:#EFE9E0;
  padding:72px 0 0;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:56px;
}
.footer-brand .brand{padding:0;margin-bottom:16px}
.footer-brand .brand-text{color:#EFE9E0}
.footer-brand .brand-text em{color:var(--sand)}
.footer-brand .brand-mark{background:rgba(255,255,255,.08)}
.footer-desc{
  font-size:14px;
  line-height:1.75;
  color:rgba(239,233,224,.62);
  max-width:320px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#EFE9E0;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:rgba(239,233,224,.62);line-height:1.75}
.footer-col a{
  color:rgba(239,233,224,.62);
  transition:color var(--ease);
}
.footer-col a:hover{color:var(--sand)}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding:20px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(239,233,224,.62);
}
.copy-right{text-align:right}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:90;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 20px;
  border-radius:var(--r-m);
  background:var(--amber);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:var(--sh-3);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity 200ms ease-out,transform 200ms ease-out,background var(--ease),visibility 200ms;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--amber-dark);transform:translateY(-1px)}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{max-width:1200px}
  .page-title{font-size:46px}
}
@media (max-width:1024px){
  .section{padding:64px 0}
  .page-head{padding:48px 0 56px}
  .nav-side{display:none}
  .nav-toggle{display:flex}
  .mobile-drawer{display:block}
  .nav-inner{position:relative}
  .brand{position:absolute;left:50%;transform:translateX(-50%)}
  .brand-text{font-size:16px}
  .page-title{font-size:40px}
  .sec-title{font-size:30px}
  .split-row{grid-template-columns:1fr;gap:32px}
  .split-row.reverse .split-media{order:1}
  .split-row.reverse .split-copy{order:2}
  .split-copy{max-width:none}
  .split-stack{gap:56px;margin-top:56px}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{padding:72px 0}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .page-head{padding:32px 0 48px}
  .page-title{font-size:34px;letter-spacing:-.2px}
  .page-lede{font-size:16px}
  .sec-title{font-size:26px}
  .sec-head{margin-bottom:32px}
  .quad-grid{grid-template-columns:1fr;gap:16px}
  .quad-card{padding:24px}
  .quad-card h3{font-size:19px}
  .split-copy h3{font-size:22px}
  .row-item{flex-direction:column;align-items:flex-start;gap:12px}
  .row-side{width:100%;justify-content:space-between;gap:12px}
  .faq-q{font-size:17px;padding:18px 0}
  .faq-a-inner{padding-right:0}
  .cta-band{padding:56px 0}
  .cta-inner h2{font-size:26px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center}
  .copy-right{text-align:center}
  .float-cta{
    left:0;right:0;bottom:0;
    width:100%;
    height:56px;
    padding:0 16px;
    border-radius:0;
    justify-content:flex-start;
    box-shadow:none;
    border-top:1px solid rgba(255,255,255,.12);
    transform:translateY(0);
  }
  .float-cta .float-arrow{margin-left:auto}
  .float-cta:hover{transform:none}
  body{padding-bottom:56px}
}
@media (max-width:520px){
  .page-title{font-size:30px}
  .eyebrow{font-size:12px}
  .row-price{font-size:14px}
  .quad-icon{width:44px;height:44px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}