/* roulang page: index */
:root{
  --brand-900:#0B2E5C;--brand-700:#12457F;--brand-600:#1557B0;--brand-500:#2A73C9;
  --brand-100:#E3EDFA;--brand-50:#F2F7FE;
  --accent-500:#F97316;--accent-600:#E2620C;--accent-100:#FFEDE0;
  --ink-900:#0F1B2D;--ink-600:#4A5A70;--ink-400:#8A99AE;--line:#E4EAF2;
  --surface:#FFFFFF;--bg:#F6F8FB;
  --success:#17936B;--warning:#D98A00;--danger:#D64545;--disabled:#C3CCD8;
  --r-card:14px;--r-nav:18px;--r-btn:10px;--r-input:10px;--r-img:12px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,45,.04);
  --sh-2:0 2px 4px rgba(15,27,45,.04),0 12px 28px rgba(15,27,45,.06);
  --sh-3:0 10px 32px rgba(21,87,176,.14);
  --sp:8px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:150px;}
body{
  margin:0;background:var(--bg);color:var(--ink-600);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:0;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(21,87,176,.35);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- layout ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-600);
  background:var(--brand-50);border:1px solid var(--brand-100);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);}
h1{font-size:clamp(30px,4.6vw,52px);line-height:1.25;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;}
h2{font-size:clamp(24px,3vw,36px);line-height:1.35;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;}
h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink-900);}
.lead{font-size:17px;line-height:1.8;color:var(--ink-600);margin-top:16px;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;transition:all .2s ease;white-space:nowrap;}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 1px 2px rgba(226,98,12,.2);}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:0 8px 24px rgba(249,115,22,.32);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:var(--surface);color:var(--brand-600);border:1px solid var(--brand-100);}
.btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-500);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn[disabled]{background:var(--disabled);color:#fff;box-shadow:none;pointer-events:none;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- header / nav ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;padding:12px 0;transition:padding .25s ease;}
.header-panel{
  display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-nav);box-shadow:var(--sh-1);padding:12px 16px;transition:all .25s ease;
}
.site-header.is-scrolled{padding:8px 0;}
.site-header.is-scrolled .header-panel{box-shadow:var(--sh-2);padding:8px 16px;max-width:1160px;margin:0 auto;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink-900);font-size:15px;letter-spacing:-.01em;}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--brand-600);display:grid;place-items:center;flex:0 0 auto;}
.brand-mark svg{width:19px;height:19px;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-item{display:inline-flex;align-items:center;gap:7px;padding:8px 13px;border-radius:10px;font-size:14px;
  font-weight:500;color:var(--ink-600);transition:all .18s ease;position:relative;}
.nav-item svg{width:18px;height:18px;flex:0 0 auto;}
.nav-item:hover{background:var(--brand-50);color:var(--brand-600);}
.nav-item.is-active{background:var(--brand-50);color:var(--brand-600);font-weight:600;}
.nav-item.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-600);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.header-link{font-size:14px;font-weight:500;color:var(--ink-600);transition:color .18s ease;}
.header-link:hover{color:var(--brand-600);}
.burger{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:var(--surface);
  margin-left:auto;align-items:center;justify-content:center;}
.burger span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.drawer{position:fixed;inset:0;z-index:80;background:rgba(11,46,92,.35);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(360px,88vw);background:var(--bg);padding:20px;
  display:flex;flex-direction:column;gap:12px;transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--surface);font-size:18px;color:var(--ink-600);}
.drawer-link{display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--line);
  border-radius:12px;padding:14px 16px;font-size:15px;font-weight:600;color:var(--ink-900);box-shadow:var(--sh-1);}
.drawer-link svg{width:18px;height:18px;color:var(--brand-600);}
.drawer-link .drawer-arrow{margin-left:auto;color:var(--ink-400);}
.drawer-link.is-active{border-color:var(--brand-100);background:var(--brand-50);color:var(--brand-600);}
.drawer-cta{margin-top:auto;padding-top:16px;}

/* ---------- hero ---------- */
.hero{padding:150px 0 64px;position:relative;overflow:hidden;}
.hero-lines{position:absolute;right:-60px;bottom:-40px;width:520px;opacity:.05;pointer-events:none;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1 span{color:var(--brand-600);}
.hero-sub{font-size:18px;line-height:1.8;color:var(--ink-600);margin-top:20px;max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.trust-row{display:flex;flex-wrap:wrap;gap:28px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line);}
.trust-item{display:flex;align-items:center;gap:10px;}
.trust-icon{width:38px;height:38px;border-radius:11px;background:var(--brand-50);border:1px solid var(--brand-100);display:grid;place-items:center;flex:0 0 auto;}
.trust-icon svg{width:18px;height:18px;color:var(--brand-600);}
.trust-num{font-size:17px;font-weight:700;color:var(--ink-900);line-height:1.3;}
.trust-label{font-size:13px;color:var(--ink-400);line-height:1.4;}
.hero-visual{position:relative;}
.hero-visual::after{content:"";position:absolute;inset:0;border-radius:16px;
  background:linear-gradient(200deg,rgba(21,87,176,.09),rgba(249,115,22,.05));pointer-events:none;}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;border:1px solid var(--line);box-shadow:var(--sh-2);background:var(--brand-50);}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;}
.pill{display:inline-flex;align-items:center;gap:7px;padding:8px 15px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface);font-size:13.5px;font-weight:500;color:var(--ink-600);transition:all .2s ease;}
.pill:hover{border-color:var(--brand-500);color:var(--brand-600);transform:translateY(-1px);box-shadow:var(--sh-1);}

/* ---------- anchor bar ---------- */
.anchorbar-wrap{position:sticky;top:82px;z-index:50;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all .28s ease;}
.anchorbar-wrap.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.anchorbar{display:flex;gap:10px;overflow-x:auto;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-pill);box-shadow:var(--sh-2);padding:8px;scrollbar-width:none;}
.anchorbar::-webkit-scrollbar{display:none;}
.anchorbar a{flex:0 0 auto;padding:8px 18px;border-radius:var(--r-pill);font-size:14px;font-weight:500;color:var(--ink-600);
  border:1px solid transparent;transition:all .2s ease;white-space:nowrap;}
.anchorbar a:hover{background:var(--brand-50);color:var(--brand-600);}
.anchorbar a.is-current{background:var(--brand-600);color:#fff;font-weight:600;}

/* ---------- advantage ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);}
.adv-item{padding:32px 24px 8px;border-right:1px solid var(--line);position:relative;}
.adv-item:last-child{border-right:0;}
.adv-index{font-size:13px;font-weight:700;color:var(--accent-500);letter-spacing:.06em;}
.adv-item h3{margin:14px 0 10px;}
.adv-item p{font-size:15px;line-height:1.8;}
.adv-item::before{content:"";position:absolute;top:-1px;left:0;width:44px;height:3px;background:var(--brand-600);border-radius:0 0 3px 3px;}

/* ---------- demo ---------- */
.demo-row{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.demo-row+.demo-row{margin-top:72px;}
.demo-row.is-reverse .demo-visual{order:2;}
.browser{border:1px solid var(--line);border-radius:14px;background:var(--surface);box-shadow:var(--sh-2);overflow:hidden;}
.browser-bar{display:flex;align-items:center;gap:7px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--brand-50);}
.browser-bar i{width:10px;height:10px;border-radius:50%;background:#D9E3F0;display:block;}
.browser-bar i:nth-child(1){background:#E9B7A6;}
.browser-bar i:nth-child(2){background:#E8D2A6;}
.browser-bar i:nth-child(3){background:#B9D8C6;}
.browser-bar span{margin-left:10px;font-size:12px;color:var(--ink-400);}
.browser img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--brand-50);}
.demo-points{display:flex;flex-direction:column;gap:16px;margin-top:24px;}
.demo-point{display:flex;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px;box-shadow:var(--sh-1);}
.demo-point svg{width:20px;height:20px;color:var(--brand-600);flex:0 0 auto;margin-top:3px;}
.demo-point strong{display:block;color:var(--ink-900);font-size:15px;font-weight:600;margin-bottom:2px;}
.demo-point p{font-size:14px;line-height:1.7;}

/* ---------- proof ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1);}
.stat-num{font-size:clamp(30px,3.4vw,40px);font-weight:800;color:var(--brand-700);line-height:1.1;letter-spacing:-.01em;}
.stat-num small{font-size:16px;font-weight:600;color:var(--brand-500);margin-left:4px;}
.stat-desc{font-size:14px;color:var(--ink-400);margin-top:10px;}
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:36px;}
.logo-cell{height:66px;border:1px solid var(--line);border-radius:12px;background:var(--surface);display:grid;place-items:center;
  font-size:13.5px;font-weight:600;color:var(--ink-400);filter:grayscale(1);opacity:.72;transition:all .25s ease;text-align:center;padding:0 8px;}
.logo-cell:hover{filter:none;opacity:1;color:var(--brand-600);border-color:var(--brand-100);box-shadow:var(--sh-1);transform:translateY(-2px);}
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:36px;}
.quote-card{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--brand-600);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);}
.quote-card p{font-size:15.5px;line-height:1.85;color:var(--ink-600);}
.quote-meta{display:flex;align-items:center;gap:10px;margin-top:18px;font-size:13.5px;color:var(--ink-400);}
.quote-avatar{width:34px;height:34px;border-radius:50%;background:var(--brand-50);border:1px solid var(--brand-100);
  display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--brand-600);}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.price-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 26px;box-shadow:var(--sh-1);transition:all .25s ease;overflow:hidden;}
.price-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--brand-100);}
.price-card.is-featured{border-color:var(--brand-100);box-shadow:var(--sh-3);transform:scale(1.02);}
.price-card.is-featured::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--brand-600);}
.price-tag{display:inline-block;font-size:12px;font-weight:600;color:var(--brand-600);background:var(--brand-50);
  border:1px solid var(--brand-100);border-radius:var(--r-pill);padding:3px 11px;}
.price-tag--accent{color:var(--accent-600);background:var(--accent-100);border-color:#FBD9BC;}
.price-name{font-size:19px;font-weight:700;color:var(--ink-900);margin:16px 0 6px;}
.price-desc{font-size:14px;color:var(--ink-400);min-height:44px;}
.price-amount{display:flex;align-items:baseline;gap:6px;margin:18px 0 6px;padding-bottom:20px;border-bottom:1px solid var(--line);}
.price-amount b{font-size:38px;font-weight:800;color:var(--ink-900);line-height:1;letter-spacing:-.02em;}
.price-amount span{font-size:14px;color:var(--ink-400);}
.price-list{display:flex;flex-direction:column;gap:12px;margin:22px 0 26px;}
.price-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.65;color:var(--ink-600);}
.price-list svg{width:17px;height:17px;color:var(--success);flex:0 0 auto;margin-top:4px;}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:all .22s ease;height:100%;}
.news-card:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--sh-2);}
.news-thumb{aspect-ratio:16/9;background:var(--brand-50);overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1;}
.badge{display:inline-flex;align-items:center;align-self:flex-start;font-size:12px;font-weight:600;
  color:var(--brand-600);background:var(--brand-50);border:1px solid var(--brand-100);border-radius:var(--r-pill);padding:3px 10px;}
.news-title{font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.55;margin:14px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease;}
.news-card:hover .news-title{color:var(--brand-600);}
.news-summary{font-size:14px;line-height:1.75;color:var(--ink-600);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:18px;
  border-top:1px solid var(--line);font-size:13px;color:var(--ink-400);}
.news-foot svg{width:16px;height:16px;color:var(--brand-600);transition:transform .2s ease;}
.news-card:hover .news-foot svg{transform:translateX(3px);}
.empty-state{grid-column:1/-1;text-align:center;padding:56px 24px;background:var(--surface);
  border:1px dashed var(--line);border-radius:var(--r-card);}
.empty-state svg{width:38px;height:38px;color:var(--ink-400);margin:0 auto 14px;}
.empty-state p{font-size:14.5px;color:var(--ink-400);}
.empty-state a{display:inline-block;margin-top:12px;font-size:14px;font-weight:600;color:var(--brand-600);}

/* ---------- faq ---------- */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s ease;}
.faq-item.is-open{border-color:var(--brand-100);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink-900);}
.faq-plus{width:22px;height:22px;flex:0 0 auto;position:relative;transition:transform .2s ease;}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--brand-600);border-radius:2px;}
.faq-plus::before{top:10px;left:0;width:22px;height:2px;}
.faq-plus::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .faq-plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;}
.faq-a p{padding:0 24px 22px 44px;font-size:15px;line-height:1.85;color:var(--ink-600);}

/* ---------- cta / form ---------- */
.cta-band{background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-2);
  padding:44px;display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:center;}
.cta-band h2{margin-bottom:14px;}
.cta-band p{font-size:15.5px;line-height:1.85;max-width:440px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field-full{grid-column:1/-1;}
.field label{font-size:14px;font-weight:500;color:var(--ink-900);}
.field input,.field select,.field textarea{height:44px;border:1px solid var(--line);border-radius:var(--r-input);
  background:var(--surface);padding:0 14px;font-size:15px;transition:all .18s ease;width:100%;}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(21,87,176,.14);}
.form-note{font-size:13px;color:var(--ink-400);grid-column:1/-1;}
.form-success{grid-column:1/-1;background:#E8F6F0;border:1px solid #BCE4D4;color:#0F6B4F;
  border-radius:var(--r-input);padding:12px 16px;font-size:14px;display:none;}
.form-success.is-show{display:block;}
.form-actions{grid-column:1/-1;display:flex;justify-content:flex-end;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:88px;position:relative;overflow:hidden;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-about{font-size:14px;line-height:1.85;max-width:320px;}
.footer-title{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;}
.footer-list{display:flex;flex-direction:column;gap:11px;}
.footer-list a,.footer-list span{font-size:14px;color:rgba(255,255,255,.72);transition:all .18s ease;}
.footer-list a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--brand-500);text-decoration-thickness:2px;text-underline-offset:4px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);}

/* ---------- floating cta ---------- */
.float-cta{position:fixed;right:28px;bottom:28px;z-index:70;opacity:0;visibility:hidden;
  transform:translateY(14px);transition:all .28s ease;}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta a{display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 24px;border-radius:var(--r-pill);
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:600;box-shadow:0 10px 28px rgba(249,115,22,.32);}
.float-cta a:hover{background:var(--accent-600);transform:translateY(-1px);}
.float-cta svg{width:18px;height:18px;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{max-width:1080px;}
  .hero-grid{gap:40px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .adv-grid{grid-template-columns:repeat(2,1fr);}
  .adv-item{border-bottom:1px solid var(--line);}
  .adv-item:nth-child(2n){border-right:0;}
  .logo-wall{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  .nav-links,.header-actions{display:none;}
  .burger{display:flex;}
  .hero{padding-top:126px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual img{aspect-ratio:16/9;}
  .demo-row{grid-template-columns:1fr;gap:28px;}
  .demo-row.is-reverse .demo-visual{order:0;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .price-grid{grid-template-columns:1fr;gap:16px;}
  .price-card.is-featured{transform:none;order:-1;}
  .cta-band{grid-template-columns:1fr;padding:34px 28px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .quote-grid{grid-template-columns:1fr;}
  .section{padding:72px 0;}
  .anchorbar-wrap{top:74px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .hero{padding:112px 0 48px;}
  .hero-sub{font-size:16.5px;}
  .trust-row{gap:18px;}
  .news-grid,.stats-grid,.adv-grid{grid-template-columns:1fr;}
  .adv-item{border-right:0;padding:26px 0 0;}
  .adv-item::before{left:0;}
  .logo-wall{grid-template-columns:repeat(2,1fr);}
  .form-grid{grid-template-columns:1fr;}
  .float-cta{left:0;right:0;bottom:0;padding:0 12px calc(12px + env(safe-area-inset-bottom));}
  .float-cta a{width:100%;justify-content:center;height:56px;border-radius:12px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 28px;}
  .form-actions{justify-content:stretch;}
  .form-actions .btn{width:100%;}
  .sec-head--row{align-items:flex-start;}
  .faq-q{padding:18px;font-size:15px;}
  .faq-a p{padding:0 18px 20px 18px;}
  .anchorbar-wrap{top:70px;}
}
@media (max-width:420px){
  .hero-cta .btn{width:100%;}
  .trust-row{gap:14px;}
  .brand{font-size:13.5px;}
  .footer-bottom{font-size:12px;}
}

/* roulang page: article */
:root{
  --brand-900:#0B2E5C;
  --brand-700:#12457F;
  --brand-600:#1557B0;
  --brand-500:#2A73C9;
  --brand-100:#E3EDFA;
  --brand-50:#F2F7FE;
  --accent-500:#F97316;
  --accent-600:#E2620C;
  --accent-100:#FFEDE0;
  --ink-900:#0F1B2D;
  --ink-600:#4A5A70;
  --ink-400:#8A99AE;
  --line:#E4EAF2;
  --surface:#FFFFFF;
  --bg:#F6F8FB;
  --success:#17936B;
  --warning:#D98A00;
  --danger:#D64545;
  --disabled:#C3CCD8;
  --r-card:14px;
  --r-panel:18px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(15,27,45,.04);
  --sh-2:0 2px 4px rgba(15,27,45,.04),0 12px 28px rgba(15,27,45,.06);
  --sh-3:0 10px 32px rgba(21,87,176,.14);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,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:1.75;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease}
button{font-family:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:-.01em;font-weight:700}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(21,87,176,.35);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:12px 0;
  background:rgba(246,248,251,.86);
  backdrop-filter:saturate(160%) blur(6px);
  transition:padding .25s ease,box-shadow .25s ease;
}
.header-panel{
  display:flex;align-items:center;gap:20px;
  min-height:72px;
  padding:10px 18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-1);
  transition:min-height .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{padding:8px 0}
.site-header.is-scrolled .header-panel{min-height:60px;box-shadow:var(--sh-2)}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:16px;font-weight:700;color:var(--ink-900);
  white-space:nowrap;flex:0 0 auto;
}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-700));
  box-shadow:0 6px 16px rgba(21,87,176,.28);
}
.brand-mark svg{width:20px;height:20px}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;min-width:0}
.nav-item{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 12px;border-radius:var(--r-btn);
  font-size:14px;color:var(--ink-600);position:relative;
  transition:background .2s ease,color .2s ease;
}
.nav-item svg{width:20px;height:20px;flex:0 0 auto}
.nav-item:hover{background:var(--brand-50);color:var(--brand-600)}
.nav-item.is-active{background:var(--brand-50);color:var(--brand-600);font-weight:600}
.nav-item.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  border-radius:2px;background:var(--brand-600);
}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.header-link{font-size:14px;color:var(--ink-600)}
.header-link:hover{color:var(--brand-600)}
.burger{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;
}
.burger span{position:relative;width:18px;height:2px;background:var(--ink-900);border-radius:2px;display:block}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;
}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 2px 6px rgba(249,115,22,.24)}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:0 8px 24px rgba(249,115,22,.32)}
.btn-ghost{background:transparent;color:var(--brand-600);border:1px solid var(--brand-600)}
.btn-ghost:hover{background:var(--brand-50)}
.btn-light{background:var(--surface);color:var(--brand-600);border:1px solid var(--line)}
.btn-light:hover{border-color:var(--brand-100);background:var(--brand-50)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600)}
.text-link::after{content:"→";transition:transform .2s ease}
.text-link:hover::after{transform:translateX(3px)}

/* ---------- layout ---------- */
.article-hero{
  margin-top:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-1);
  padding:28px 32px;
}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-400);margin-bottom:16px;
}
.crumb a{color:var(--ink-400)}
.crumb a:hover{color:var(--brand-600)}
.crumb .sep{color:var(--disabled)}
.crumb .current{color:var(--ink-600);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:0;
  background:var(--brand-100);color:var(--brand-700);border:1px solid #D6E5F9;
}
.badge-accent{background:var(--accent-100);color:var(--accent-600);border-color:#FBDCBF}
.badge-soft{background:var(--brand-50);color:var(--brand-600);border-color:var(--line)}
.article-title{
  font-size:clamp(26px,3.6vw,40px);line-height:1.3;font-weight:800;
  margin:14px 0 18px;max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:14px;color:var(--ink-400);
  padding-top:16px;border-top:1px solid var(--line);
}
.article-meta .item{display:inline-flex;align-items:center;gap:6px}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--disabled);display:inline-block}

.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:32px;
  align-items:start;
  padding:32px 0 0;
}
.main-col{min-width:0}
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}

/* ---------- article body ---------- */
.paper{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-1);
  padding:36px 40px 40px;
}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink-600)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:26px;line-height:1.4;margin:40px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;
  background:var(--brand-600);
}
.article-body h3{font-size:20px;line-height:1.5;margin:30px 0 12px;padding-left:14px;position:relative}
.article-body h3::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:3px;
  background:var(--brand-100);
}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--ink-900)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px}
.article-body li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:13px;width:7px;height:7px;border-radius:2px;
  background:var(--brand-500);
}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li;padding-left:30px}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:1px;
  width:20px;height:20px;border-radius:6px;background:var(--brand-100);color:var(--brand-700);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.article-body img{margin:22px 0;border:1px solid var(--line);border-radius:var(--r-img)}
.article-body a{color:var(--brand-600);border-bottom:1px solid var(--brand-100)}
.article-body a:hover{border-color:var(--brand-600)}
.article-body blockquote{
  margin:26px 0;padding:20px 22px;border-left:4px solid var(--brand-500);
  background:var(--brand-50);border-radius:0 12px 12px 0;color:var(--brand-900);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:24px 0;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:15px;
}
.article-body thead th{
  background:var(--brand-50);color:var(--brand-900);font-weight:700;text-align:left;
  padding:12px 16px;border-bottom:1px solid var(--line);
}
.article-body tbody td{padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#FBFCFE}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body pre{
  margin:24px 0;padding:20px;border-radius:12px;overflow-x:auto;
  background:#0F1B2D;color:#D7E3F4;font-size:14px;line-height:1.7;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;background:var(--brand-50);color:var(--brand-700);
  padding:2px 6px;border-radius:6px;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.article-foot{
  max-width:760px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--brand-600);background:var(--brand-50);border:1px solid var(--line);
  transition:border-color .2s ease,background .2s ease;
}
.tag:hover{border-color:var(--brand-100);background:var(--brand-100)}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--ink-400)}

/* ---------- notice ---------- */
.notice{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
  box-shadow:var(--sh-1);padding:56px 32px;text-align:center;
}
.notice .icon{
  width:56px;height:56px;border-radius:16px;margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;background:var(--brand-50);
}
.notice .icon svg{width:26px;height:26px;stroke:var(--brand-600)}
.notice h2{font-size:22px;margin-bottom:10px}
.notice p{max-width:520px;margin:0 auto 22px}

/* ---------- sidebar ---------- */
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:22px;
}
.side-title{
  font-size:15px;font-weight:700;color:var(--ink-900);margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-title::before{content:"";width:4px;height:15px;border-radius:3px;background:var(--brand-600)}
.side-list li + li{margin-top:4px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14px;color:var(--ink-600);
  transition:background .2s ease,color .2s ease;
}
.side-list a:hover{background:var(--brand-50);color:var(--brand-600)}
.side-list a span.arrow{color:var(--disabled);transition:transform .2s ease,color .2s ease}
.side-list a:hover span.arrow{color:var(--brand-600);transform:translateX(3px)}
.side-cta{
  background:linear-gradient(180deg,var(--brand-700),var(--brand-900));
  border-radius:var(--r-card);padding:24px;color:#DCE7F6;box-shadow:var(--sh-2);
}
.side-cta h3{color:#fff;font-size:17px;margin-bottom:8px}
.side-cta p{font-size:13.5px;line-height:1.7;color:#B9CEEB;margin-bottom:16px}
.mini-stat{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.mini-stat div{
  flex:1 1 88px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  border-radius:10px;padding:10px 12px;
}
.mini-stat b{display:block;font-size:18px;color:#fff;font-variant-numeric:tabular-nums}
.mini-stat span{font-size:12px;color:#A9C2E2}

/* ---------- related entries ---------- */
.section{padding:64px 0 0}
.section-head{margin-bottom:24px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--ink-400)}
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.entry-card{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:18px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-100)}
.entry-thumb{width:120px;height:88px;flex:0 0 auto;overflow:hidden;border-radius:var(--r-img);border:1px solid var(--line);background:var(--brand-50)}
.entry-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.entry-card h3{font-size:16px;line-height:1.5;margin:8px 0 6px}
.entry-card:hover h3{color:var(--brand-600)}
.entry-card p{font-size:14px;color:var(--ink-400);margin:0}

/* ---------- CTA band ---------- */
.cta-band{
  margin-top:72px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
  box-shadow:var(--sh-2);padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(21,87,176,.10),transparent 68%);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.cta-band p{margin:0;font-size:15px;color:var(--ink-600);max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{
  margin-top:88px;background:var(--brand-900);color:#B9CEEB;padding:60px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;margin-bottom:14px}
.footer-about{font-size:14px;line-height:1.8;color:#9CB6D8;max-width:320px;margin:0}
.footer-title{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-list li + li{margin-top:10px}
.footer-list a,.footer-list span{font-size:14px;color:#9CB6D8}
.footer-list a:hover{color:#fff;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;text-decoration-color:var(--brand-500)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8AA6CA;
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{max-width:1040px}
}
@media (max-width:1023px){
  .layout{grid-template-columns:1fr;gap:24px}
  .side-col{position:static;flex-direction:row;overflow-x:auto;gap:16px;padding-bottom:6px}
  .side-col > *{min-width:280px;flex:0 0 auto}
  .paper{padding:30px 26px 32px}
  .entry-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-links{
    position:absolute;left:16px;right:16px;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:8px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
    box-shadow:var(--sh-2);padding:14px;
    display:none;
  }
  .site-header.is-open .nav-links{display:flex}
  .nav-item{padding:12px 14px;font-size:15px;justify-content:flex-start}
  .nav-item.is-active::after{display:none}
  .nav-item.is-active{background:var(--brand-50)}
  .header-actions{display:none}
  .burger{display:flex;margin-left:auto}
  .header-panel{position:relative}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .article-hero{padding:22px 20px}
  .paper{padding:24px 18px 28px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:22px;margin:32px 0 14px}
  .entry-thumb{width:96px;height:72px}
  .cta-band{padding:26px 20px}
  .section{padding:48px 0 0}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{margin-top:64px;padding:44px 0 24px}
}
@media (max-width:420px){
  .brand{font-size:15px}
  .brand-mark{width:30px;height:30px}
  .article-meta{font-size:13px;gap:8px 14px}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B2E5C;
  --brand-700:#12457F;
  --brand-600:#1557B0;
  --brand-500:#2A73C9;
  --brand-100:#E3EDFA;
  --brand-50:#F2F7FE;
  --accent-500:#F97316;
  --accent-600:#E2620C;
  --accent-100:#FFEDE0;
  --ink-900:#0F1B2D;
  --ink-600:#4A5A70;
  --ink-400:#8A99AE;
  --line:#E4EAF2;
  --surface:#FFFFFF;
  --bg:#F6F8FB;
  --success:#17936B;
  --warning:#D98A00;
  --danger:#D64545;
  --disabled:#C3CCD8;
  --r-card:14px;
  --r-panel:18px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(15,27,45,.04);
  --sh-2:0 2px 4px rgba(15,27,45,.04),0 12px 28px rgba(15,27,45,.06);
  --sh-3:0 10px 32px rgba(21,87,176,.14);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,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:1.75;
  color:var(--ink-600);background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:-.01em;line-height:1.35}
h1{font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.25}
h2{font-size:clamp(24px,3vw,36px);font-weight:700}
h3{font-size:20px;font-weight:600;line-height:1.5}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(21,87,176,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 8px;transition:padding .22s ease}
.site-header.is-stuck{padding:8px 0}
.header-panel{
  display:flex;align-items:center;gap:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
  box-shadow:var(--sh-1);padding:12px 16px;transition:box-shadow .22s ease,padding .22s ease;
}
.site-header.is-stuck .header-panel{box-shadow:var(--sh-2);padding:8px 16px}
.brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;color:var(--ink-900);white-space:nowrap}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));flex:none;
}
.brand-mark svg{width:19px;height:19px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;padding:9px 12px;border-radius:10px;
  font-size:14px;color:var(--ink-600);border:1px solid transparent;position:relative;
}
.nav-item svg{width:18px;height:18px;flex:none;color:var(--ink-400);transition:color .18s ease}
.nav-item:hover{background:var(--brand-50);color:var(--brand-600)}
.nav-item:hover svg{color:var(--brand-600)}
.nav-item.is-active{background:var(--brand-50);color:var(--brand-600);font-weight:600}
.nav-item.is-active svg{color:var(--brand-600)}
.nav-item.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--brand-600);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.header-link{font-size:14px;color:var(--ink-600);padding:6px 2px;border-bottom:2px solid transparent}
.header-link:hover{color:var(--brand-600);border-bottom-color:var(--brand-100)}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;align-items:center;justify-content:center;background:var(--surface)}
.burger span{display:block;width:18px;height:2px;background:var(--ink-900);position:relative;border-radius:2px}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .18s ease;white-space:nowrap;
}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-primary{background:var(--accent-500);color:#fff}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:0 8px 24px rgba(249,115,22,.32)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);color:var(--brand-600);border-color:var(--brand-100)}
.btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-500);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-line{background:transparent;color:var(--brand-600);border-color:rgba(255,255,255,.5)}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:14px}
.btn-link i{font-style:normal;transition:transform .18s ease;display:inline-block}
.btn-link:hover i{transform:translateX(3px)}
.btn[disabled]{background:var(--disabled);color:#fff;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);padding:14px 0 0}
.crumb a:hover{color:var(--brand-600)}
.crumb span.sep{color:var(--line)}
.crumb .now{color:var(--ink-600)}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;margin-top:22px;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);
  background-image:linear-gradient(100deg,rgba(11,46,92,.92) 0%,rgba(18,69,127,.86) 52%,rgba(42,115,201,.62) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:340px;height:340px;border-radius:50%;
  border:2px solid rgba(255,255,255,.06);pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;padding:52px 44px 46px;max-width:820px}
.cat-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:13px;font-weight:600;margin-bottom:18px;
}
.cat-hero h1{color:#fff;max-width:14em}
.cat-hero p.lead{color:rgba(255,255,255,.86);font-size:17px;line-height:1.8;margin:18px 0 26px;max-width:44em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16)}
.hero-stat b{display:block;font-size:26px;font-weight:800;color:#fff;line-height:1.2}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.72)}

/* ---------- pill nav ---------- */
.pill-bar{margin-top:26px;display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none}
.pill-bar::-webkit-scrollbar{display:none}
.pill{
  flex:none;display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);font-size:14px;color:var(--ink-600);
  transition:all .18s ease;
}
.pill:hover{border-color:var(--brand-100);color:var(--brand-600);background:var(--brand-50)}
.pill.is-current{background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600}

/* ---------- layout: toc + content ---------- */
.cat-layout{display:grid;grid-template-columns:262px minmax(0,1fr);gap:44px;align-items:start;padding:44px 0 0}
.toc{position:sticky;top:96px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:20px}
.toc h2{font-size:15px;font-weight:700;color:var(--ink-900);margin-bottom:12px;letter-spacing:0}
.toc-list li a{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;
  font-size:14px;color:var(--ink-600);border-left:2px solid transparent;
}
.toc-list li a:hover{background:var(--brand-50);color:var(--brand-600)}
.toc-list li a.is-active{background:var(--brand-50);color:var(--brand-600);font-weight:600;border-left-color:var(--brand-600)}
.toc-list li a em{font-style:normal;color:var(--ink-400);font-size:12px}
.toc-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-400)}
.toc-note a{color:var(--brand-600);font-weight:600}

/* ---------- content sections ---------- */
.cat-main{min-width:0}
.block{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:32px;margin-bottom:24px;transition:box-shadow .2s ease,border-color .2s ease;
}
.block:hover{box-shadow:var(--sh-2);border-color:var(--brand-100)}
.block-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px}
.block-head .num{
  flex:none;width:38px;height:38px;border-radius:11px;background:var(--brand-50);color:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
}
.block-head h2{font-size:clamp(21px,2.2vw,27px)}
.block-head .sub{font-size:14px;color:var(--ink-400);margin-top:4px}
.block p{font-size:16px;line-height:1.8}
.figure{margin:20px 0 22px;border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;background:var(--brand-50)}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure figcaption{font-size:13px;color:var(--ink-400);padding:10px 14px;border-top:1px solid var(--line);background:var(--surface)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center;margin:18px 0 6px}
.split.rev .split-media{order:2}
.split-media{border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;background:var(--brand-50);box-shadow:var(--sh-1)}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.check-list{display:grid;gap:12px;margin:20px 0 4px}
.check-list li{
  display:flex;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--brand-50);
  font-size:15px;color:var(--ink-600);line-height:1.7;
}
.check-list li::before{
  content:"";flex:none;width:20px;height:20px;margin-top:3px;border-radius:6px;
  background:var(--brand-600);
  background-image:linear-gradient(#fff,#fff),linear-gradient(#fff,#fff);
  background-size:10px 2px,2px 10px;background-position:center;background-repeat:no-repeat;
}
.check-list li b{color:var(--ink-900)}

/* ---------- table ---------- */
.table-wrap{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin:20px 0 6px;background:var(--surface)}
.table-scroll{overflow-x:auto}
table.cmp{width:100%;border-collapse:collapse;min-width:620px;font-size:14.5px}
table.cmp thead th{
  background:var(--brand-50);color:var(--brand-700);font-weight:700;text-align:left;
  padding:14px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.cmp tbody td{padding:14px 18px;border-bottom:1px solid var(--line);color:var(--ink-600);line-height:1.7}
table.cmp tbody tr:nth-child(even){background:#FAFCFF}
table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp tbody tr:hover{background:var(--brand-50)}
table.cmp td b{color:var(--ink-900)}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;
  background:var(--brand-100);color:var(--brand-700);
}
.tag.orange{background:var(--accent-100);color:var(--accent-600)}
.tag.green{background:rgba(23,147,107,.12);color:var(--success)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:22px}
.step{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px;position:relative}
.step b{display:block;font-size:13px;font-weight:800;color:var(--accent-500);letter-spacing:.06em;margin-bottom:8px}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:14px;margin:0;color:var(--ink-600)}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);margin-bottom:12px;overflow:hidden}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink-900);transition:background .18s ease;
}
.faq-q:hover{background:var(--brand-50)}
.faq-q .ico{flex:none;width:22px;height:22px;position:relative}
.faq-q .ico::before,.faq-q .ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-q .ico::before{width:14px;height:2px}
.faq-q .ico::after{width:2px;height:14px;transition:transform .2s ease,opacity .2s ease}
.faq-item.is-open .ico::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 22px 20px 42px;margin:0;font-size:15px;color:var(--ink-600)}

/* ---------- cta ---------- */
.cta-band{
  margin:28px 0 8px;border-radius:var(--r-panel);border:1px solid var(--brand-700);
  background:linear-gradient(120deg,var(--brand-900),var(--brand-700) 70%,var(--brand-600));
  box-shadow:var(--sh-2);overflow:hidden;position:relative;
}
.cta-band::before{
  content:"";position:absolute;left:-40px;top:-80px;width:260px;height:260px;border-radius:50%;
  border:2px solid rgba(255,255,255,.06);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;padding:38px 40px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);max-width:22em}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15px;margin:10px 0 0;max-width:34em}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:72px;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:15px;margin-bottom:14px}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin:0}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.footer-list li{margin-bottom:10px;font-size:14px;line-height:1.7}
.footer-list a{color:rgba(255,255,255,.72);border-bottom:2px solid transparent;padding-bottom:1px}
.footer-list a:hover{color:#fff;border-bottom-color:var(--accent-500)}
.footer-list span{color:rgba(255,255,255,.66)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:18px 0;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .cat-layout{grid-template-columns:236px minmax(0,1fr);gap:32px}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .burger{display:inline-flex}
  .nav-links,.header-actions{
    position:fixed;left:16px;right:16px;top:86px;z-index:70;
    flex-direction:column;align-items:stretch;gap:8px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
    box-shadow:var(--sh-2);padding:16px;display:none;
  }
  .nav-links.is-open,.header-actions.is-open{display:flex}
  .header-actions{margin-left:0}
  .header-actions .header-link{text-align:center;border:1px solid var(--line);border-radius:10px;padding:11px}
  .header-actions .btn{width:100%}
  .nav-item{padding:12px;border:1px solid var(--line);border-radius:10px;justify-content:flex-start}
  .nav-item.is-active::after{display:none}
  .cat-layout{grid-template-columns:1fr;gap:22px}
  .toc{position:static;padding:16px}
  .toc-list{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none}
  .toc-list::-webkit-scrollbar{display:none}
  .toc-list li a{white-space:nowrap;border:1px solid var(--line);border-radius:999px;padding:8px 14px}
  .toc-list li a.is-active{border-color:var(--brand-600)}
  .toc-note{display:none}
  .split{grid-template-columns:1fr;gap:18px}
  .split.rev .split-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cat-hero-inner{padding:40px 28px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .block{padding:22px}
  .cat-hero-inner{padding:32px 20px 34px}
  .cat-hero p.lead{font-size:16px}
  .hero-stats{gap:20px;margin-top:26px}
  .hero-stat b{font-size:22px}
  .cta-inner{padding:28px 22px}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  h1{font-size:27px}
  .brand{font-size:14px}
  .block{padding:18px}
  .block-head .num{width:34px;height:34px}
  .faq-q{padding:15px 16px;font-size:15px;gap:10px}
  .faq-a p{padding:0 16px 18px 16px}
  .hero-actions .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B2E5C;
  --brand-700:#12457F;
  --brand-600:#1557B0;
  --brand-500:#2A73C9;
  --brand-100:#E3EDFA;
  --brand-50:#F2F7FE;
  --accent-500:#F97316;
  --accent-600:#E2620C;
  --accent-100:#FFEDE0;
  --ink-900:#0F1B2D;
  --ink-600:#4A5A70;
  --ink-400:#8A99AE;
  --line:#E4EAF2;
  --surface:#FFFFFF;
  --bg:#F6F8FB;
  --success:#17936B;
  --warning:#D98A00;
  --danger:#D64545;
  --sh-1:0 1px 2px rgba(15,27,45,.04);
  --sh-2:0 2px 4px rgba(15,27,45,.04),0 12px 28px rgba(15,27,45,.06);
  --sh-3:0 10px 32px rgba(21,87,176,.14);
  --r-card:14px;
  --r-panel:18px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
.num,.stat-value,.step-num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:3px solid rgba(21,87,176,.35);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sp-section) 0;}
.section-tight{padding:56px 0;}
.section-alt{background:var(--surface);}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:60;padding:14px 0;transition:padding .25s ease;}
.site-header.is-scrolled{padding:8px 0;}
.header-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-1);
  padding:12px 18px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.site-header.is-scrolled .header-panel{box-shadow:var(--sh-2);}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:20px;height:20px;}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-item{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:var(--r-btn);
  font-size:14px;color:var(--ink-600);
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
  position:relative;
}
.nav-item svg{width:20px;height:20px;flex:none;}
.nav-item:hover{background:var(--brand-50);color:var(--brand-600);}
.nav-item.is-active{background:var(--brand-100);color:var(--brand-700);font-weight:600;}
.nav-item.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-600);
}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:8px;}
.header-link{font-size:14px;color:var(--brand-600);border-bottom:2px solid transparent;transition:border-color .2s ease;}
.header-link:hover{border-color:var(--brand-600);}
.burger{display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);align-items:center;justify-content:center;}
.burger span{position:relative;display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:background .2s ease;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .25s ease,top .25s ease;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.burger.is-open span{background:transparent;}
.burger.is-open span::before{top:0;transform:rotate(45deg);}
.burger.is-open span::after{top:0;transform:rotate(-45deg);}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  padding:12px 22px;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  border:1px solid transparent;
  min-height:44px;
}
.btn-sm{padding:9px 16px;font-size:14px;min-height:38px;}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 2px 6px rgba(249,115,22,.24);}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:0 8px 24px rgba(249,115,22,.32);}
.btn-ghost{background:var(--surface);color:var(--brand-600);border-color:var(--brand-600);}
.btn-ghost:hover{background:var(--brand-50);transform:translateY(-1px);}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.4);}
.btn-light:hover{background:rgba(255,255,255,.2);transform:translateY(-1px);}
.btn:active{transform:translateY(1px);}
.btn[disabled]{background:#C3CCD8;color:#fff;cursor:not-allowed;box-shadow:none;transform:none;border-color:#C3CCD8;}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-size:14px;font-weight:600;}
.text-link .arrow{transition:transform .2s ease;}
.text-link:hover .arrow{transform:translateX(3px);}

/* ============ Hero card ============ */
.hero-wrap{padding:36px 0 48px;}
.hero-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-2);
  padding:32px;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:32px;
  align-items:center;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);margin-bottom:16px;flex-wrap:wrap;}
.crumbs a{color:var(--ink-400);transition:color .2s ease;}
.crumbs a:hover{color:var(--brand-600);}
.crumbs .sep{color:#C6D1E0;}
.crumbs .now{color:var(--ink-600);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;
  padding:5px 12px;
  background:var(--brand-100);color:var(--brand-700);
}
.badge-accent{background:var(--accent-100);color:var(--accent-600);}
.hero-card h1{
  font-size:clamp(30px,4.6vw,46px);
  line-height:1.25;font-weight:800;color:var(--ink-900);
  letter-spacing:-.01em;margin:16px 0 14px;
}
.hero-lead{font-size:17px;color:var(--ink-600);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;padding-top:20px;border-top:1px solid var(--line);}
.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-600);}
.trust-item svg{width:18px;height:18px;color:var(--success);flex:none;}
.hero-figure{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--brand-50);}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(21,87,176,.10),rgba(21,87,176,0) 60%);
  pointer-events:none;
}

/* ============ Pill nav ============ */
.pill-nav{display:flex;flex-wrap:wrap;gap:10px;padding:0 0 8px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink-600);
  border-radius:var(--r-pill);padding:9px 18px;font-size:14px;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.pill:hover{background:var(--brand-50);color:var(--brand-600);border-color:var(--brand-100);transform:translateY(-1px);}
.pill.is-current{background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600;}

/* ============ Section head ============ */
.section-head{max-width:720px;margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.02em;
  color:var(--brand-600);background:var(--brand-50);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.35;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;}
.section-head p{margin-top:12px;color:var(--ink-600);}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto;}

/* ============ Grid cards ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.info-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:24px;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-100);}
.card-icon{
  width:46px;height:46px;border-radius:12px;background:var(--brand-50);color:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.card-icon svg{width:22px;height:22px;}
.card-icon.accent{background:var(--accent-100);color:var(--accent-600);}
.info-card h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink-900);margin-bottom:10px;}
.info-card p{font-size:15px;color:var(--ink-600);}
.info-card .card-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);}

/* ============ Feature rows ============ */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
  box-shadow:var(--sh-1);padding:32px;
}
.feature-row + .feature-row{margin-top:28px;}
.feature-row.reverse .feature-media{order:2;}
.feature-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--brand-50);}
.feature-body h2{font-size:clamp(22px,2.4vw,28px);line-height:1.4;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;margin-bottom:14px;}
.feature-body p{font-size:15.5px;margin-bottom:12px;}
.check-list{margin-top:18px;display:grid;gap:10px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-600);}
.check-list svg{width:18px;height:18px;color:var(--success);flex:none;margin-top:4px;}
.note-card{
  margin-top:20px;background:var(--brand-50);border:1px solid var(--brand-100);
  border-radius:var(--r-card);padding:16px 18px;font-size:14.5px;color:var(--brand-700);
  display:flex;gap:10px;
}
.note-card svg{width:18px;height:18px;flex:none;margin-top:4px;}

/* ============ Metrics ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  background:var(--brand-900);border-radius:var(--r-panel);padding:36px 32px;
  position:relative;overflow:hidden;
}
.metrics::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
}
.metric{color:#fff;position:relative;}
.metric .stat-value{font-size:clamp(26px,3.4vw,38px);font-weight:800;line-height:1.1;color:#fff;}
.metric .stat-value span{font-size:15px;font-weight:600;margin-left:4px;color:rgba(255,255,255,.72);}
.metric .stat-label{margin-top:8px;font-size:14px;color:rgba(255,255,255,.7);}

/* ============ Steps ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:24px 22px;position:relative;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-100);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:var(--brand-600);color:#fff;font-weight:700;font-size:15px;margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
.step p{font-size:14.5px;}
.step::after{
  content:"";position:absolute;top:44px;right:-14px;width:8px;height:8px;border-radius:50%;
  background:var(--brand-100);
}
.step:last-child::after{display:none;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--brand-100);}
.faq-item.is-open{border-color:var(--brand-100);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-plus{width:20px;height:20px;flex:none;position:relative;transition:transform .25s ease;color:var(--brand-600);}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:currentColor;border-radius:2px;}
.faq-plus::before{left:0;top:9px;width:20px;height:2px;}
.faq-plus::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.is-open .faq-plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 24px 22px 44px;font-size:15px;color:var(--ink-600);}

/* ============ CTA ============ */
.cta-band{
  background:var(--brand-900);
  border-radius:var(--r-panel);
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:-40px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(255,255,255,.07);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.4;font-weight:700;color:#fff;letter-spacing:-.01em;}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.74);font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:none;}

/* ============ Float CTA ============ */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-500);color:#fff;font-weight:600;font-size:15px;
  border-radius:var(--r-pill);padding:14px 22px;
  box-shadow:0 8px 24px rgba(249,115,22,.32);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background .2s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--accent-600);}
.float-cta svg{width:18px;height:18px;}

/* ============ Footer ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:88px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-about{font-size:14px;line-height:1.8;max-width:320px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-list{display:grid;gap:10px;font-size:14px;}
.footer-list a{color:rgba(255,255,255,.72);border-bottom:2px solid transparent;transition:color .2s ease,border-color .2s ease;}
.footer-list a:hover{color:#fff;border-color:var(--accent-500);}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ Responsive ============ */
@media (max-width:1279px){
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1023px){
  :root{--sp-section:72px;}
  .hero-card{grid-template-columns:1fr;padding:26px;}
  .hero-figure img{aspect-ratio:16/10;}
  .feature-row{grid-template-columns:1fr;gap:28px;padding:26px;}
  .feature-row.reverse .feature-media{order:0;}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;padding:30px 26px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step::after{display:none;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .nav-links{
    position:fixed;inset:0;z-index:80;
    background:var(--surface);
    flex-direction:column;align-items:stretch;gap:12px;
    padding:96px 24px 32px;
    transform:translateX(100%);
    transition:transform .28s ease;
    margin-left:0;
    overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0);}
  .nav-item{
    width:100%;justify-content:flex-start;
    padding:16px 18px;border:1px solid var(--line);border-radius:var(--r-card);
    font-size:16px;
  }
  .nav-item.is-active::after{display:none;}
  .burger{display:inline-flex;margin-left:auto;z-index:90;}
  .header-actions{display:none;}
  .brand{z-index:90;}
}
@media (max-width:767px){
  :root{--sp-section:56px;}
  .container{padding:0 16px;}
  .hero-wrap{padding:20px 0 32px;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:1fr;}
  .cta-band{padding:28px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;
    justify-content:center;height:56px;padding:0 16px 0 16px;
    padding-bottom:env(safe-area-inset-bottom);
  }
  .brand{font-size:15px;}
  .brand-mark{width:30px;height:30px;}
  .faq-q{padding:18px 18px;font-size:15.5px;}
  .faq-a-inner{padding:0 18px 18px 18px;}
}
@media (max-width:419px){
  .info-card{padding:20px;}
  .metric .stat-value{font-size:26px;}
  .btn{padding:11px 18px;font-size:14px;}
}