/* roulang page: index */
:root{
  --ink:#0E3B3A;
  --ink-deep:#0B2A29;
  --accent:#FF6A2B;
  --accent-dark:#E85A1C;
  --lime:#C9F24D;
  --lime-soft:#EFFACB;
  --mist:#7FA8A0;
  --mist-soft:#EAF3F1;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --text:#16211F;
  --text-sub:#5A6B68;
  --text-inv:#F6F4EF;
  --ok:#2E9E6B;
  --warn:#E0A32E;
  --err:#D6453D;
  --line:rgba(14,59,58,.10);
  --line-soft:rgba(14,59,58,.08);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(14,59,58,.06), 0 8px 24px rgba(14,59,58,.08);
  --shadow-2:0 2px 4px rgba(14,59,58,.08), 0 18px 40px rgba(14,59,58,.14);
  --t:230ms cubic-bezier(.4,0,.2,1);
  --sec-pad:96px;
}
*{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",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent)}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(255,106,43,.32);outline-offset:2px;border-radius:4px}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%}
.section{padding:var(--sec-pad) 0}
.section-tight{padding:64px 0}
.bg-paper{background:var(--paper)}
.bg-white{background:#fff}
.bg-deep{background:var(--ink-deep);color:var(--text-inv)}
.bg-deep h2,.bg-deep h3{color:var(--text-inv)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--mist);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
h2.sec-title{font-size:clamp(24px,3.4vw,32px);line-height:1.3;font-weight:700}
.sec-desc{margin-top:16px;color:var(--text-sub);font-size:16px;line-height:1.9;max-width:640px}
.sec-head.center .sec-desc{margin-left:auto;margin-right:auto}

/* header */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--paper);
  border-bottom:1px solid var(--line);transition:box-shadow var(--t),border-color var(--t);
}
.site-header.is-scrolled{box-shadow:0 1px 12px rgba(14,59,58,.10)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--ink);color:var(--lime);
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;color:var(--ink);padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--accent)}
.nav-link.active::after{transform:scaleX(1)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  border:1.5px solid var(--ink);color:var(--ink);background:transparent;
  padding:9px 20px;border-radius:var(--r-btn);font-size:14px;font-weight:600;
  transition:background var(--t),color var(--t),transform var(--t);
  white-space:nowrap;
}
.btn-ghost:hover{background:var(--ink);color:var(--text-inv);transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;
  flex-direction:column;justify-content:center;align-items:center;gap:6px;
}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);transition:transform var(--t),opacity var(--t)}
.nav-toggle.open span:nth-child(1){transform:translateY(4px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){transform:translateY(-4px) rotate(-45deg)}
.mobile-drawer{
  display:none;position:fixed;inset:60px 0 0 0;background:var(--ink-deep);z-index:1029;
  padding:32px 24px;flex-direction:column;gap:4px;
}
.mobile-drawer.open{display:flex}
.mobile-drawer a{
  color:var(--text-inv);font-size:17px;padding:16px 0;border-bottom:1px solid rgba(246,244,239,.14);
}
.mobile-drawer a:hover{color:var(--lime)}
.mobile-drawer .drawer-cta{margin-top:24px;border-bottom:0}

/* buttons */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);color:#fff;border:0;border-radius:var(--r-btn);
  padding:14px 28px;font-size:15px;font-weight:600;min-height:48px;
  transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.btn-main:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,106,43,.28)}
.btn-sub{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--ink);border:1.5px solid var(--ink);
  border-radius:var(--r-btn);padding:13px 26px;font-size:15px;font-weight:600;min-height:48px;
  transition:background var(--t),color var(--t),transform var(--t);
}
.btn-sub:hover{background:var(--ink);color:var(--text-inv);transform:translateY(-1px)}
.btn-link{
  color:var(--ink);font-weight:600;font-size:14px;
  border-bottom:2px solid var(--accent);padding-bottom:2px;
}
.btn-link:hover{color:var(--accent)}

/* badges */
.badge-soft{
  display:inline-block;font-size:12px;line-height:1.7;padding:2px 12px;border-radius:999px;
  background:var(--mist-soft);color:var(--ink);font-weight:600;
}
.badge-lime{background:var(--lime-soft)}
.badge-ghost{background:transparent;border:1px solid rgba(246,244,239,.34);color:var(--text-inv)}

/* hero */
.hero{padding:80px 0 56px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(14,59,58,.03) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(14,59,58,.03) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 82%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.hero h1{font-size:clamp(28px,5vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.hero-sub{margin-top:20px;font-size:17px;color:var(--text-sub);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-media{position:relative}
.hero-media img{border-radius:16px;box-shadow:var(--shadow-1);width:100%;aspect-ratio:4/3.2;object-fit:cover}
.hero-stat-card{
  position:absolute;right:-14px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px 20px;box-shadow:var(--shadow-2);min-width:190px;
}
.hero-stat-card strong{display:block;font-size:24px;color:var(--ink);line-height:1.3}
.hero-stat-card span{font-size:13px;color:var(--text-sub)}
.data-strip{
  margin-top:64px;display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line-soft);
}
.data-strip div{padding:24px 20px;border-right:1px solid var(--line-soft)}
.data-strip div:last-child{border-right:0}
.data-strip b{display:block;font-size:26px;color:var(--ink);letter-spacing:-.01em}
.data-strip small{font-size:13px;color:var(--text-sub)}

/* 痛点行式列表 */
.row-list{border-top:1px solid var(--line-soft)}
.row-item{
  display:grid;grid-template-columns:280px 1fr;gap:32px;align-items:center;
  padding:24px 0;border-bottom:1px solid var(--line-soft);position:relative;padding-left:0;
  transition:padding-left var(--t);
}
.row-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--accent);transition:height var(--t);
}
.row-item:hover::before{height:56%}
.row-item:hover{padding-left:16px}
.row-item h3{font-size:18px;font-weight:600}
.row-item p{color:var(--text-sub);font-size:15px;margin:0}

/* 解决方案 */
.solution-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
.solution-media img{border-radius:var(--r-img);box-shadow:var(--shadow-1);aspect-ratio:3/4;object-fit:cover}
.solution-item{display:grid;grid-template-columns:64px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid var(--line-soft)}
.solution-item:first-child{padding-top:0}
.solution-num{font-size:22px;font-weight:700;color:var(--accent);letter-spacing:.02em;line-height:1.4}
.solution-item h3{font-size:20px;font-weight:600;margin-bottom:6px}
.solution-item p{color:var(--text-sub);font-size:15px;margin:0}

/* 成果 */
.result-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:stretch}
.result-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  display:grid;grid-template-columns:1fr 1fr;box-shadow:var(--shadow-1);
}
.result-card img{height:100%;object-fit:cover;min-height:280px}
.result-body{padding:32px}
.result-body h3{font-size:20px;margin-bottom:14px}
.result-body li{
  position:relative;padding-left:20px;color:var(--text-sub);font-size:15px;margin-bottom:12px;
}
.result-body li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--lime);border:1px solid rgba(14,59,58,.18);
}
.result-stats{display:grid;gap:16px}
.stat-box{
  background:var(--mist-soft);border-radius:var(--r-card);padding:24px;
  display:flex;flex-direction:column;justify-content:center;
}
.stat-box b{font-size:30px;color:var(--ink);line-height:1.2}
.stat-box small{font-size:14px;color:var(--text-sub);margin-top:6px}

/* 证言 */
.quote-list{display:grid;gap:20px;max-width:900px}
.quote{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:var(--r-card);padding:28px 32px;
}
.quote::before{content:"”";display:block;font-size:40px;line-height:1;color:var(--lime);margin-bottom:6px}
.quote p{font-size:16px;color:var(--text);line-height:1.9;margin-bottom:16px}
.quote-meta{font-size:13px;color:var(--text-sub)}

/* 资讯 */
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;height:100%;display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(255,106,43,.28)}
.news-title{font-size:18px;line-height:1.55;margin:14px 0 12px;font-weight:600}
.news-title a{color:var(--ink)}
.news-title a:hover{color:var(--accent)}
.news-excerpt{
  font-size:14px;color:var(--text-sub);line-height:1.85;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.news-date{font-size:13px;color:var(--mist)}
.news-more{font-size:13px;font-weight:600;color:var(--ink)}
.news-more:hover{color:var(--accent)}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);background:#fff;
  padding:56px 24px;text-align:center;
}
.empty-state p{color:var(--text-sub);margin-bottom:20px}

/* FAQ */
.faq-wrap{max-width:880px}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card) !important;
  margin-bottom:12px;overflow:hidden;background:#fff;
}
.accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);background:#fff;
  padding:20px 24px;box-shadow:none !important;border:0;
}
.accordion-button:not(.collapsed){color:var(--ink);background:#fff}
.accordion-button::after{
  content:"+";background-image:none;font-size:22px;font-weight:400;color:var(--accent);
  width:24px;height:24px;line-height:22px;text-align:center;transform:none;transition:transform var(--t);
}
.accordion-button:not(.collapsed)::after{content:"−";transform:none}
.accordion-button:focus{border-color:transparent}
.accordion-body{padding:0 24px 24px;color:var(--text-sub);font-size:15px;line-height:1.9}
.accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--accent)}

/* CTA */
.cta-panel{
  background:var(--ink-deep);border-radius:18px;padding:56px;color:var(--text-inv);
  display:grid;grid-template-columns:1fr .9fr;gap:48px;align-items:center;
}
.cta-panel h2{color:var(--text-inv);font-size:clamp(24px,3.2vw,30px)}
.cta-panel p{color:rgba(246,244,239,.76);margin-top:14px;font-size:15px}
.cta-form .form-label{font-size:14px;color:rgba(246,244,239,.82);margin-bottom:8px;display:block}
.cta-form input{
  width:100%;height:48px;border-radius:var(--r-btn);border:1px solid rgba(246,244,239,.28);
  background:rgba(246,244,239,.06);color:var(--text-inv);padding:0 14px;font-size:15px;
  transition:border-color var(--t),box-shadow var(--t);
}
.cta-form input::placeholder{color:rgba(246,244,239,.45)}
.cta-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,106,43,.28)}
.cta-form .form-row{margin-bottom:18px}
.cta-note{font-size:13px;color:rgba(246,244,239,.55);margin-top:12px}

/* footer */
.site-footer{background:var(--ink-deep);color:rgba(246,244,239,.78);padding:72px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.site-footer h4{color:var(--text-inv);font-size:15px;margin-bottom:18px;font-weight:600}
.site-footer a{color:rgba(246,244,239,.78);font-size:14px;line-height:2.2}
.site-footer a:hover{color:var(--lime)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--accent);color:#fff}
.footer-brand span{color:var(--text-inv);font-weight:700;font-size:16px}
.footer-desc{max-width:32em;line-height:1.9;color:rgba(246,244,239,.66)}
.footer-links li{border-bottom:1px solid rgba(246,244,239,.10)}
.footer-contact li{margin-bottom:10px}
.footer-bottom{
  border-top:1px solid rgba(246,244,239,.14);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;
  color:rgba(246,244,239,.55);
}
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border:0;border-radius:12px;
  background:var(--ink);color:var(--text-inv);display:none;align-items:center;justify-content:center;
  z-index:1040;transition:background var(--t),transform var(--t);
}
.to-top.show{display:flex}
.to-top:hover{background:var(--accent);transform:translateY(-2px)}

@media (max-width:1199.98px){
  :root{--sec-pad:80px}
}
@media (max-width:991.98px){
  :root{--sec-pad:68px}
  .main-nav,.nav-cta-desktop{display:none}
  .nav-toggle{display:flex}
  .hero{padding:56px 0 40px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{order:-1}
  .data-strip{grid-template-columns:repeat(2,1fr);margin-top:48px}
  .data-strip div:nth-child(2){border-right:0}
  .data-strip div:nth-child(1),.data-strip div:nth-child(2){border-bottom:1px solid var(--line-soft)}
  .row-item{grid-template-columns:1fr;gap:8px}
  .solution-grid{grid-template-columns:1fr;gap:36px}
  .solution-media img{aspect-ratio:16/10}
  .result-grid{grid-template-columns:1fr}
  .result-card{grid-template-columns:1fr}
  .result-card img{min-height:220px;aspect-ratio:16/9}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575.98px){
  :root{--sec-pad:52px}
  .container{padding-left:16px;padding-right:16px}
  .nav-wrap{height:60px}
  .mobile-drawer{inset:60px 0 0 0}
  .hero-stat-card{position:static;margin-top:16px;width:100%}
  .data-strip{grid-template-columns:1fr}
  .data-strip div{border-right:0;border-bottom:1px solid var(--line-soft)}
  .data-strip div:last-child{border-bottom:0}
  .hero-actions .btn-main,.hero-actions .btn-sub{width:100%}
  .quote{padding:22px}
  .cta-panel{padding:28px}
  .footer-grid{grid-template-columns:1fr}
  .to-top{right:16px;bottom:16px}
}

/* roulang page: article */
:root{
  --ink:#0E3B3A;
  --ink-deep:#0B2A29;
  --accent:#FF6A2B;
  --accent-dark:#E85A1C;
  --lime:#C9F24D;
  --lime-soft:#EFFACB;
  --mist:#7FA8A0;
  --mist-soft:#EAF3F1;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --line:rgba(14,59,58,.10);
  --line-soft:rgba(14,59,58,.08);
  --text:#16211F;
  --text-2:#5A6B68;
  --text-inv:#F6F4EF;
  --success:#2E9E6B;
  --warning:#E0A32E;
  --danger:#D6453D;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(14,59,58,.06), 0 8px 24px rgba(14,59,58,.08);
  --shadow-2:0 2px 4px rgba(14,59,58,.08), 0 16px 36px rgba(14,59,58,.12);
  --t:250ms cubic-bezier(.4,0,.2,1);
}
*,*::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",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color var(--t);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:3px solid rgba(255,106,43,.30);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.scrolled{box-shadow:0 4px 18px rgba(14,59,58,.09);}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-size:18px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--ink);
  color:var(--lime);
  font-size:16px;
  font-weight:700;
  flex:none;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:32px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  color:var(--ink);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--t);
}
.nav-link:hover{color:var(--accent);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--accent);}
.nav-link.active::after{transform:scaleX(1);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:10px 22px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  background:transparent;
  border:1.5px solid var(--ink);
  border-radius:var(--r-btn);
  transition:all var(--t);
  white-space:nowrap;
}
.btn-ghost:hover{background:var(--ink);color:var(--text-inv);}
.nav-cta-desktop{flex:none;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  padding:0;
  background:transparent;
  border:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:6px;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:22px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform var(--t),opacity var(--t);
}
.nav-toggle.open span:first-child{transform:translateY(4px) rotate(45deg);}
.nav-toggle.open span:last-child{transform:translateY(-4px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:14px 28px;
  font-size:15px;
  font-weight:600;
  color:#fff;
  background:var(--accent);
  border:none;
  border-radius:var(--r-btn);
  cursor:pointer;
  transition:all var(--t);
}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px);color:#fff;}
.btn-primary:active{transform:translateY(0);}
.btn-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:13px 26px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  background:transparent;
  border:1.5px solid var(--ink);
  border-radius:var(--r-btn);
  cursor:pointer;
  transition:all var(--t);
}
.btn-outline:hover{background:var(--ink);color:var(--text-inv);}
.link-underline{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  border-bottom:2px solid var(--accent);
  padding-bottom:2px;
  transition:color var(--t);
}
.link-underline:hover{color:var(--accent);}

/* ============ 徽章 / 标签 ============ */
.badge-pill{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  font-size:12px;
  line-height:1.7;
  font-weight:600;
  color:var(--ink);
  background:var(--mist-soft);
  border-radius:999px;
}
.badge-pill.lime{background:var(--lime-soft);}
.badge-pill.solid{background:var(--ink);color:var(--lime);}

/* ============ 文章头 ============ */
.article-hero{
  padding:48px 0 8px;
}
.breadcrumb-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--mist);
  margin-bottom:24px;
}
.breadcrumb-line a{color:var(--mist);}
.breadcrumb-line a:hover{color:var(--accent);}
.breadcrumb-line .sep{color:rgba(127,168,160,.6);}
.breadcrumb-line .current{color:var(--text-2);}
.article-title{
  font-size:clamp(26px,4vw,38px);
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
  max-width:900px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:0;
  margin-top:22px;
  padding-top:18px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  color:var(--text-2);
}
.article-meta > *{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding-right:18px;
  margin-right:18px;
  border-right:1px solid var(--line-soft);
}
.article-meta > *:last-child{border-right:none;margin-right:0;padding-right:0;}
.article-meta i{color:var(--mist);font-size:14px;}

.article-cover{
  margin:32px 0 0;
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--mist-soft);
  box-shadow:var(--shadow-1);
  aspect-ratio:16/9;
}
.article-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
}

/* ============ 主体布局 ============ */
.article-main{
  padding:56px 0 88px;
}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:56px;
  align-items:start;
}
.article-body{
  max-width:760px;
  font-size:18px;
  line-height:1.9;
  color:var(--text);
  word-break:break-word;
}
.article-body p{margin:0 0 1.1em;}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:24px;
  line-height:1.4;
  font-weight:700;
  color:var(--ink);
  margin:2.2em 0 .8em;
  padding-left:14px;
  border-left:4px solid var(--accent);
}
.article-body h3{
  font-size:20px;
  font-weight:700;
  color:var(--ink);
  margin:1.8em 0 .6em;
}
.article-body h4{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  margin:1.5em 0 .5em;
}
.article-body ul,.article-body ol{
  padding-left:1.3em;
  margin:0 0 1.2em;
}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.6em;}
.article-body li::marker{color:var(--accent);font-weight:600;}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  background:var(--mist-soft);
  border-left:4px solid var(--ink);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--text-2);
  font-size:17px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--r-img);
  margin:1.6em auto;
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{
  font-size:13px;
  line-height:1.7;
  color:var(--text-2);
  text-align:center;
  margin-top:10px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:16px;
}
.article-body th,.article-body td{
  border-bottom:1px solid var(--line);
  padding:12px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{
  color:var(--ink);
  font-weight:600;
  background:var(--mist-soft);
}
.article-body a{
  color:var(--accent);
  text-decoration:underline;
  text-decoration-thickness:2px;
  text-underline-offset:4px;
}
.article-body a:hover{color:var(--accent-dark);}
.article-body strong{color:var(--ink);}
.article-body code{
  background:var(--mist-soft);
  padding:2px 6px;
  border-radius:6px;
  font-size:15px;
}
.article-body hr{
  border:none;
  border-top:1px solid var(--line);
  margin:2.2em 0;
}

/* 无内容状态 */
.article-empty{
  max-width:760px;
  padding:40px 36px;
  background:var(--card);
  border:1px solid rgba(14,59,58,.14);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
}
.article-empty h2{
  font-size:22px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:12px;
}
.article-empty p{
  color:var(--text-2);
  font-size:16px;
  margin-bottom:24px;
}

/* ============ 侧栏 ============ */
.article-aside{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:24px;
}
.aside-title{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:16px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
  letter-spacing:.02em;
}
.aside-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.aside-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-1);
  border-color:rgba(255,106,43,.25);
}
.reco-item{
  display:flex;
  gap:12px;
  padding:14px 0;
  border-top:1px solid var(--line-soft);
}
.reco-item:first-of-type{border-top:none;padding-top:0;}
.reco-thumb{
  width:74px;
  height:56px;
  border-radius:10px;
  overflow:hidden;
  flex:none;
  background:var(--mist-soft);
}
.reco-thumb img{width:100%;height:100%;object-fit:cover;}
.reco-text h5{
  font-size:14px;
  line-height:1.6;
  font-weight:600;
  color:var(--ink);
  margin:0 0 4px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.reco-item:hover .reco-text h5{color:var(--accent);}
.reco-text span{font-size:12px;color:var(--mist);}
.aside-cta{
  background:var(--ink-deep);
  border-radius:var(--r-card);
  padding:26px 22px;
  color:var(--text-inv);
}
.aside-cta h4{
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:10px;
}
.aside-cta p{
  font-size:13px;
  line-height:1.8;
  color:rgba(246,244,239,.72);
  margin-bottom:18px;
}
.aside-cta .btn-primary{width:100%;padding:12px 18px;font-size:14px;}

/* ============ 底部入口 ============ */
.article-foot{
  margin-top:56px;
  padding-top:32px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  max-width:760px;
}
.article-foot .hint{
  font-size:14px;
  color:var(--text-2);
}

/* ============ 转化区 ============ */
.cta-band{
  background:var(--ink-deep);
  color:var(--text-inv);
  padding:80px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,77,.16),transparent 68%);
  pointer-events:none;
}
.cta-inner{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;
  align-items:center;
  position:relative;
  z-index:1;
}
.cta-inner h2{
  font-size:clamp(24px,3.4vw,32px);
  line-height:1.32;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.cta-inner p{
  font-size:16px;
  line-height:1.9;
  color:rgba(246,244,239,.74);
  max-width:520px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.cta-band .btn-outline{
  color:var(--text-inv);
  border-color:rgba(246,244,239,.45);
}
.cta-band .btn-outline:hover{background:var(--text-inv);color:var(--ink);border-color:var(--text-inv);}
.cta-panel{
  background:rgba(246,244,239,.06);
  border:1px solid rgba(246,244,239,.16);
  border-radius:var(--r-card);
  padding:28px;
}
.cta-panel ul li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:12px 0;
  font-size:15px;
  color:rgba(246,244,239,.86);
  border-top:1px solid rgba(246,244,239,.12);
}
.cta-panel ul li:first-child{border-top:none;padding-top:0;}
.cta-panel ul li i{color:var(--lime);font-size:17px;line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-deep);
  color:var(--text-inv);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:44px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:var(--lime);color:var(--ink);}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(246,244,239,.66);
  max-width:320px;
}
.site-footer h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
  padding-bottom:12px;
  border-bottom:1px solid rgba(246,244,239,.14);
}
.footer-links li{margin-bottom:11px;}
.footer-links a{
  font-size:14px;
  color:rgba(246,244,239,.70);
}
.footer-links a:hover{color:var(--lime);}
.footer-contact li{
  font-size:14px;
  color:rgba(246,244,239,.70);
  margin-bottom:11px;
  line-height:1.8;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 28px;
  border-top:1px solid rgba(246,244,239,.14);
  font-size:13px;
  color:rgba(246,244,239,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-layout{gap:40px;}
}
@media (max-width:991.98px){
  .container{padding:0 20px;}
  .nav-cta-desktop{display:none;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;
    inset:72px 0 0 0;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:20px 24px 40px;
    background:var(--ink-deep);
    transform:translateY(-10px);
    opacity:0;
    visibility:hidden;
    transition:opacity var(--t),transform var(--t),visibility var(--t);
    margin-left:0;
    overflow-y:auto;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:translateY(0);}
  .main-nav .nav-link{
    width:100%;
    padding:16px 0;
    font-size:16px;
    color:rgba(246,244,239,.88);
    border-bottom:1px solid rgba(246,244,239,.12);
  }
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link:hover,.main-nav .nav-link.active{color:var(--lime);}
  .article-layout{grid-template-columns:1fr;gap:40px;}
  .article-aside{position:static;}
  .article-main{padding:40px 0 64px;}
  .article-hero{padding:36px 0 8px;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .cta-band{padding:64px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  .nav-wrap{height:60px;}
  .brand-text{font-size:16px;}
  .brand-mark{width:30px;height:30px;font-size:15px;}
  .main-nav{inset:60px 0 0 0;}
  .article-body{font-size:17px;}
  .article-body h2{font-size:21px;}
  .article-title{font-size:24px;}
  .article-meta > *{padding-right:14px;margin-right:14px;font-size:12px;}
  .cta-band{padding:52px 0;}
  .cta-panel{padding:22px;}
  .site-footer{padding-top:56px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-desc{max-width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12px;}
  .article-empty{padding:30px 22px;}
  .article-foot{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --ink:#0E3B3A;
  --ink-deep:#0B2A29;
  --accent:#FF6A2B;
  --accent-dark:#E85A1C;
  --lime:#C9F24D;
  --lime-soft:#EFFACB;
  --mist:#7FA8A0;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --text:#16211F;
  --text-2:#5A6B68;
  --line:rgba(14,59,58,.10);
  --line-soft:rgba(14,59,58,.08);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow:0 1px 2px rgba(14,59,58,.06),0 8px 24px rgba(14,59,58,.08);
  --shadow-hover:0 2px 4px rgba(14,59,58,.08),0 16px 36px rgba(14,59,58,.12);
  --ease:250ms cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
p{margin:0}
:focus-visible{outline:3px solid rgba(255,106,43,.30);outline-offset:2px;border-radius:6px}
body .container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(14,59,58,.07)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--ink);color:#F6F4EF;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;line-height:1;flex:0 0 auto;
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:34px;margin-left:auto}
.main-nav .nav-link{
  position:relative;padding:6px 0;font-size:15px;color:var(--ink);
  background:none;border:0;line-height:1.4;
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.main-nav .nav-link:hover{color:var(--accent)}
.main-nav .nav-link:hover::after{transform:scaleX(1)}
.main-nav .nav-link.active{color:var(--accent);font-weight:600}
.main-nav .nav-link.active::after{transform:scaleX(1)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 24px;border:1.5px solid var(--ink);border-radius:var(--r-btn);
  background:transparent;color:var(--ink);font-size:14px;font-weight:600;
  transition:all var(--ease);min-height:44px;
}
.btn-ghost:hover{background:var(--ink);color:#F6F4EF}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:6px;
  width:44px;height:44px;border:0;background:transparent;padding:0 10px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px;transition:all var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(4px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){transform:translateY(-4px) rotate(-45deg)}
@media (max-width:991px){
  .nav-toggle{display:flex;z-index:1002}
  .brand{position:relative;z-index:1002}
  .nav-cta-desktop{display:none}
  .main-nav{
    position:fixed;inset:0;z-index:1001;margin:0;
    background:var(--ink-deep);
    flex-direction:column;align-items:flex-start;justify-content:center;
    gap:28px;padding:0 32px;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
  }
  .main-nav.open{opacity:1;visibility:visible;transform:none}
  .main-nav .nav-link{color:#F6F4EF;font-size:20px;font-weight:600}
  .main-nav .nav-link::after{background:var(--lime)}
  .main-nav .nav-link.active{color:var(--lime)}
}
@media (max-width:575px){
  body .container{padding-left:16px;padding-right:16px}
  .nav-wrap{height:60px}
  .brand-text{font-size:16px}
}

/* ============ 页头 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:56px 0 64px;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(14,59,58,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(14,59,58,.03) 1px,transparent 1px);
  background-size:48px 48px;
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--mist);margin-bottom:22px}
.breadcrumb-nav a:hover{color:var(--accent)}
.breadcrumb-nav .sep{color:rgba(127,168,160,.6)}
.page-title{
  font-size:clamp(28px,4.2vw,40px);line-height:1.25;
  max-width:900px;letter-spacing:-.01em;
}
.page-lead{
  margin-top:18px;max-width:760px;
  font-size:16px;line-height:1.9;color:var(--text-2);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  background:#EAF3F1;color:var(--ink);
  font-size:13px;line-height:1.5;white-space:nowrap;
}
.tag-lime{background:var(--lime-soft)}
.stat-bar{
  display:grid;grid-template-columns:repeat(3,1fr);
  margin-top:36px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat{padding:20px 24px 20px 0;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:22px;color:var(--ink);letter-spacing:-.01em;line-height:1.4}
.stat span{font-size:13px;color:var(--mist)}
@media (max-width:767px){
  .page-hero{padding:36px 0 44px}
  .stat-bar{grid-template-columns:1fr;}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:16px 0}
  .stat:last-child{border-bottom:0}
}

/* ============ 主体两栏 ============ */
.cat-layout{
  display:grid;grid-template-columns:288px minmax(0,1fr);
  gap:48px;align-items:start;
  padding:72px 0 88px;
}
@media (max-width:991px){
  .cat-layout{grid-template-columns:1fr;gap:32px;padding:48px 0 64px}
}

/* 左栏 */
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow);margin-bottom:22px;
}
.side-title{font-size:17px;margin-bottom:12px}
.side-card p{font-size:14.5px;line-height:1.85;color:var(--text-2)}
.side-img{margin-top:18px;border-radius:var(--r-img);width:100%;height:150px;object-fit:cover}
.anchor-nav{display:flex;flex-direction:column;gap:10px}
.anchor-nav a{
  display:block;padding:10px 16px;background:var(--card);
  border:1px solid var(--line);border-radius:999px;
  font-size:14px;color:var(--ink);
}
.anchor-nav a:hover{border-color:rgba(255,106,43,.55);color:var(--accent);transform:translateX(2px)}
@media (max-width:991px){
  .anchor-nav{flex-direction:row;flex-wrap:wrap}
  .anchor-nav a{flex:0 0 auto}
}

/* 右栏主列 */
.main-col{min-width:0}
.col-intro{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--shadow);margin-bottom:28px;
}
.col-intro p{font-size:15.5px;line-height:1.9;color:var(--text-2)}
.col-intro p + p{margin-top:10px}
.step-list{display:flex;flex-direction:column}
.step-item{
  display:grid;grid-template-columns:60px minmax(0,1fr);gap:20px;
  padding:28px 0;border-top:1px solid var(--line-soft);
  scroll-margin-top:96px;
}
.step-item:first-child{border-top:0;padding-top:8px}
.step-num{
  font-size:26px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.15;
  padding-top:2px;
}
.step-body h3{font-size:20px;line-height:1.5;margin-bottom:10px}
.step-body > p{font-size:15.5px;line-height:1.9;color:var(--text-2)}
.check-list{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:8px}
.check-list li{
  position:relative;padding-left:18px;
  font-size:14.5px;line-height:1.8;color:var(--text-2);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:.78em;
  width:8px;height:2px;background:var(--accent);border-radius:2px;
}
.mini-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.mini-tags span{
  font-size:12.5px;padding:5px 12px;border-radius:999px;
  background:#EAF3F1;color:var(--ink);line-height:1.5;
}
.figure-block{margin:8px 0 28px;border-top:1px solid var(--line-soft);padding-top:28px}
.figure-block img{width:100%;height:260px;object-fit:cover;border-radius:var(--r-img)}
.figure-block figcaption{font-size:13px;color:var(--mist);text-align:center;margin-top:10px}
@media (max-width:575px){
  .step-item{grid-template-columns:1fr;gap:6px;padding:22px 0}
  .step-num{font-size:22px}
  .figure-block img{height:180px}
}

/* 速查行式列表 */
.section-head{margin:40px 0 18px}
.section-head h2{font-size:clamp(22px,2.6vw,28px);line-height:1.35}
.section-head p{font-size:15px;color:var(--text-2);margin-top:10px;max-width:720px}
.spec-list{border-top:1px solid var(--line-soft)}
.spec-row{
  position:relative;display:grid;grid-template-columns:190px minmax(0,1fr);
  gap:24px;padding:18px 6px;border-bottom:1px solid var(--line-soft);
  transition:padding var(--ease);
}
.spec-row:hover{padding-left:16px}
.spec-row::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--accent);border-radius:2px;opacity:0;transition:opacity var(--ease);
}
.spec-row:hover::before{opacity:1}
.spec-row h4{font-size:16px;color:var(--ink);line-height:1.7}
.spec-row p{font-size:14.5px;line-height:1.85;color:var(--text-2)}
@media (max-width:767px){
  .spec-row{grid-template-columns:1fr;gap:6px}
}

/* ============ FAQ ============ */
.faq-wrap{margin-top:56px}
.faq .accordion-item{
  background:var(--card);border:1px solid var(--line) !important;
  border-radius:var(--r-card) !important;margin-bottom:12px;overflow:hidden;
}
.faq .accordion-header{margin:0}
.faq .accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);
  background:var(--card);box-shadow:none;
  padding:20px 22px;line-height:1.6;border-left:3px solid transparent;
  transition:all var(--ease);
}
.faq .accordion-button:not(.collapsed){
  color:var(--ink);background:var(--card);border-left:3px solid var(--accent);
}
.faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(255,106,43,.30);z-index:2}
.faq .accordion-button::after{
  content:"+";background-image:none !important;
  width:auto;height:auto;font-size:20px;font-weight:400;color:var(--accent);
  display:flex;align-items:center;justify-content:center;margin-left:16px;transform:none !important;
}
.faq .accordion-button:not(.collapsed)::after{content:"−"}
.faq .accordion-body{
  padding:2px 22px 22px 25px;font-size:15px;line-height:1.9;color:var(--text-2);
  border-left:3px solid rgba(255,106,43,.18);
}

/* ============ CTA ============ */
.cta-section{
  position:relative;overflow:hidden;
  background:var(--ink-deep);color:#F6F4EF;
  padding:80px 0;
}
.cta-section::after{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;
  border-radius:50%;background:rgba(201,242,77,.07);
}
.cta-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.2fr) auto;
  gap:36px;align-items:center;
}
.cta-inner h2{color:#F6F4EF;font-size:clamp(22px,2.8vw,30px);line-height:1.4;max-width:560px}
.cta-inner p{margin-top:14px;font-size:15px;line-height:1.9;color:rgba(246,244,239,.75);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 28px;border-radius:var(--r-btn);border:0;
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  transition:all var(--ease);min-height:48px;
}
.btn-main:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-outline-light{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 28px;border-radius:var(--r-btn);
  border:1.5px solid rgba(246,244,239,.55);background:transparent;
  color:#F6F4EF;font-size:15px;font-weight:600;transition:all var(--ease);min-height:48px;
}
.btn-outline-light:hover{background:#F6F4EF;color:var(--ink);border-color:#F6F4EF}
@media (max-width:767px){
  .cta-section{padding:56px 0}
  .cta-inner{grid-template-columns:1fr;gap:24px}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:#F6F4EF;padding-top:8px}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;padding:64px 0 40px;
  border-bottom:1px solid rgba(246,244,239,.14);
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#F6F4EF}
.footer-brand .brand-mark{background:var(--accent)}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(246,244,239,.65);max-width:340px}
.footer-grid h4{font-size:15px;color:#F6F4EF;margin-bottom:16px;font-weight:600}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0}
.footer-links li,.footer-contact li{font-size:14px;line-height:2.1;color:rgba(246,244,239,.65)}
.footer-links a{color:rgba(246,244,239,.72)}
.footer-links a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0;font-size:13px;color:rgba(246,244,239,.55);
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr}
}

/* 回到顶部 */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:900;
  width:46px;height:46px;border:0;border-radius:12px;
  background:var(--ink);color:#F6F4EF;font-size:18px;cursor:pointer;
  display:none;align-items:center;justify-content:center;
  box-shadow:var(--shadow);transition:all var(--ease);
}
.to-top.show{display:flex}
.to-top:hover{background:var(--accent)}
@media (max-width:575px){.to-top{right:16px;bottom:20px}}

/* roulang page: category2 */
:root{
  --ink:#0E3B3A;
  --ink-deep:#0B2A29;
  --accent:#FF6A2B;
  --accent-dark:#E85A1C;
  --lime:#C9F24D;
  --lime-soft:#EFFACB;
  --soft:#EAF3F1;
  --mist:#7FA8A0;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --text:#16211F;
  --text-2:#5A6B68;
  --line:rgba(14,59,58,.10);
  --line-soft:rgba(14,59,58,.08);
  --ok:#2E9E6B;
  --warn:#E0A32E;
  --err:#D6453D;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(14,59,58,.06),0 8px 24px rgba(14,59,58,.08);
  --sh-2:0 2px 6px rgba(14,59,58,.09),0 18px 42px rgba(14,59,58,.14);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--accent-dark);}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(28px,5vw,44px);line-height:1.25;}
h2{font-size:clamp(24px,3.4vw,32px);line-height:1.3;}
h3{font-size:20px;line-height:1.45;}
h4{font-size:17px;line-height:1.5;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(255,106,43,.32);outline-offset:2px;border-radius:4px;}

.container{max-width:1200px;padding-left:24px;padding-right:24px;width:100%;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-dark{background:var(--ink-deep);color:#F1F3F2;}
.section-dark h2,.section-dark h3{color:#FFFFFF;}
.section-dark p{color:rgba(246,244,239,.78);}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--mist);
  text-transform:uppercase;
  margin-bottom:14px;
  font-weight:600;
}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head p{color:var(--text-2);margin-top:14px;font-size:16px;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(14,59,58,.06),0 6px 18px rgba(14,59,58,.06);}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:17px;letter-spacing:.01em;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;
  background:var(--ink);color:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
  flex:0 0 auto;
}
.brand-text{white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:32px;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--ink);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--accent-dark);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-cta-desktop{display:inline-flex;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:transparent;
  padding:0;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:6px;
}
.nav-toggle span{display:block;width:19px;height:1.6px;background:var(--ink);transition:transform .25s ease,opacity .25s ease;}

/* ============ 按钮 ============ */
.btn-main,.btn-outline,.btn-dark-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:14px 28px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:all .22s ease;
  border:1.5px solid transparent;
  line-height:1.2;
}
.btn-main{background:var(--accent);color:#FFFFFF;border-color:var(--accent);}
.btn-main:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#FFFFFF;transform:translateY(-1px);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#F6F4EF;}
.btn-dark-outline{background:transparent;color:#F6F4EF;border-color:rgba(246,244,239,.5);}
.btn-dark-outline:hover{background:#F6F4EF;color:var(--ink-deep);border-color:#F6F4EF;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:42px;padding:10px 22px;
  border:1.5px solid var(--ink);border-radius:var(--r-btn);
  color:var(--ink);font-size:15px;font-weight:600;
  background:transparent;transition:all .22s ease;
}
.btn-ghost:hover{background:var(--ink);color:#F6F4EF;}
.link-underline{
  color:var(--ink);font-weight:600;
  border-bottom:2px solid var(--accent);
  padding-bottom:2px;
}
.link-underline:hover{color:var(--accent-dark);}

/* ============ 徽章 ============ */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  background:var(--soft);
  color:var(--ink);
  letter-spacing:.01em;
}
.pill-lime{background:var(--lime-soft);}
.pill-outline{background:transparent;border:1px solid var(--line);color:var(--text-2);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  background-image:linear-gradient(100deg,rgba(11,42,41,.92) 0%,rgba(11,42,41,.72) 48%,rgba(11,42,41,.42) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:#F6F4EF;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-inner{padding:104px 0 96px;max-width:760px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.hero-badges .pill{background:rgba(246,244,239,.12);color:#F6F4EF;border:1px solid rgba(246,244,239,.18);}
.hero-badges .pill-lime{background:var(--lime);color:var(--ink-deep);border-color:var(--lime);}
.page-hero h1{color:#FFFFFF;margin-bottom:18px;}
.hero-sub{
  font-size:17px;
  color:rgba(246,244,239,.86);
  max-width:600px;
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:0;
  border-top:1px solid rgba(246,244,239,.18);
  padding-top:24px;
}
.hero-fact{
  padding-right:36px;
  margin-right:36px;
  border-right:1px solid rgba(246,244,239,.16);
}
.hero-fact:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-fact b{
  display:block;
  font-family:var(--font-num);
  font-size:26px;
  color:var(--lime);
  line-height:1.2;
  letter-spacing:-.01em;
}
.hero-fact span{font-size:13.5px;color:rgba(246,244,239,.72);}

/* ============ 锚点导航 ============ */
.anchor-bar{
  position:sticky;
  top:72px;
  z-index:1020;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.anchor-pills{
  display:flex;
  gap:10px;
  padding:14px 0;
  overflow-x:auto;
  scrollbar-width:none;
}
.anchor-pills::-webkit-scrollbar{display:none;}
.anchor-pills a{
  flex:0 0 auto;
  font-size:14px;
  padding:8px 18px;
  border:1px solid var(--line);
  border-radius:999px;
  color:var(--text-2);
  transition:all .22s ease;
  white-space:nowrap;
}
.anchor-pills a:hover{border-color:var(--accent);color:var(--accent-dark);background:#FFFFFF;}

/* ============ 价值卡片 ============ */
.value-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.value-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.value-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,106,43,.28);}
.value-card .num{
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.1em;
  margin-bottom:12px;
  display:block;
}
.value-card h3{margin-bottom:10px;}
.value-card p{color:var(--text-2);font-size:15px;margin:0;}

/* ============ 时间轴 ============ */
.steps{position:relative;padding-left:0;}
.step-item{
  position:relative;
  display:grid;
  grid-template-columns:88px minmax(0,1fr);
  gap:28px;
  padding:26px 0;
  border-top:1px solid var(--line-soft);
  transition:background .22s ease;
}
.step-item:first-child{border-top:0;padding-top:8px;}
.step-item:hover{background:rgba(255,106,43,.03);}
.step-index{
  font-family:var(--font-num);
  font-size:32px;
  font-weight:700;
  color:var(--mist);
  line-height:1.1;
  letter-spacing:-.02em;
}
.step-item:hover .step-index{color:var(--accent);}
.step-body h3{margin-bottom:8px;}
.step-body p{color:var(--text-2);margin:0;font-size:15.5px;max-width:720px;}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* ============ 对比区 ============ */
.compare-grid{
  display:grid;
  grid-template-columns:minmax(0,0.85fr) minmax(0,1.15fr);
  gap:64px;
  align-items:start;
}
.compare-side h2{margin-bottom:16px;}
.compare-side p{color:var(--text-2);font-size:15.5px;}
.compare-main{display:flex;flex-direction:column;gap:16px;}
.compare-row{
  background:var(--card);
  border:1px solid var(--line);
  border-left:3px solid var(--mist);
  border-radius:var(--r-card);
  padding:24px 26px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.compare-row:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.compare-row.is-ok{border-left-color:var(--ok);}
.compare-row.is-risk{border-left-color:var(--err);}
.compare-row h3{font-size:17px;margin-bottom:8px;}
.compare-row p{color:var(--text-2);font-size:15px;margin:0;}
.compare-row .row-label{
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--mist);
  display:block;
  margin-bottom:8px;
}

/* ============ 安全设置 ============ */
.security-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
}
.security-media{
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--sh-2);
  background:var(--card);
  border:1px solid var(--line);
}
.security-media img{width:100%;height:420px;object-fit:cover;object-position:center;}
.security-list{margin-top:26px;}
.security-list li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-top:1px solid var(--line-soft);
}
.security-list li:first-child{border-top:0;}
.security-list .dot{
  flex:0 0 auto;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--accent);
  margin-top:11px;
}
.security-list b{display:block;font-size:16px;color:var(--text);margin-bottom:4px;}
.security-list span{font-size:14.5px;color:var(--text-2);}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-item{
  background:var(--card);
  border:1px solid var(--line) !important;
  border-radius:var(--r-card) !important;
  margin-bottom:12px;
  overflow:hidden;
}
.accordion-button{
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  background:var(--card);
  padding:20px 24px;
  box-shadow:none !important;
  border:0;
  line-height:1.5;
}
.accordion-button:not(.collapsed){
  color:var(--ink);
  background:var(--card);
  box-shadow:inset 3px 0 0 var(--accent) !important;
}
.accordion-button:focus{box-shadow:inset 3px 0 0 var(--accent),0 0 0 3px rgba(255,106,43,.22) !important;}
.accordion-button::after{
  background-image:none !important;
  content:"+";
  font-family:var(--font-num);
  font-size:22px;
  line-height:1;
  color:var(--mist);
  width:auto;height:auto;
  transform:none !important;
  display:flex;align-items:center;justify-content:center;
}
.accordion-button:not(.collapsed)::after{content:"−";color:var(--accent);}
.accordion-body{
  padding:0 24px 24px 24px;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.85;
}
.accordion-body p{margin-bottom:.7em;}

/* ============ CTA ============ */
.cta-block{
  background:var(--ink-deep);
  border-radius:18px;
  padding:64px;
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.cta-block::after{
  content:"";
  position:absolute;
  right:-90px;bottom:-120px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(201,242,77,.20),transparent 68%);
  pointer-events:none;
}
.cta-block h2{color:#FFFFFF;margin-bottom:14px;}
.cta-block p{color:rgba(246,244,239,.76);font-size:15.5px;margin:0;}
.cta-form{position:relative;z-index:2;}
.cta-form label{display:block;font-size:14px;color:rgba(246,244,239,.82);margin-bottom:8px;}
.cta-form .field-row{display:flex;gap:12px;}
.cta-form input{
  flex:1 1 auto;
  height:48px;
  border-radius:var(--r-btn);
  border:1px solid rgba(246,244,239,.28);
  background:rgba(246,244,239,.06);
  color:#F6F4EF;
  padding:0 14px;
  font-size:15px;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.cta-form input::placeholder{color:rgba(246,244,239,.45);}
.cta-form input:focus{
  outline:none;
  border-color:var(--accent);
  background:rgba(246,244,239,.10);
  box-shadow:0 0 0 3px rgba(255,106,43,.24);
}
.cta-note{font-size:13px;color:rgba(246,244,239,.55);margin-top:12px;}
.cta-secondary{margin-top:22px;display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-deep);
  color:rgba(246,244,239,.78);
  padding:72px 0 28px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(246,244,239,.14);
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#FFFFFF;font-weight:700;font-size:17px;
  margin-bottom:14px;
}
.footer-brand .brand-mark{background:var(--lime);color:var(--ink-deep);}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(246,244,239,.62);margin:0;max-width:320px;}
.site-footer h4{
  color:#FFFFFF;
  font-size:15px;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-links li,.footer-contact li{
  font-size:14.5px;
  padding:6px 0;
  color:rgba(246,244,239,.66);
}
.footer-links a{color:rgba(246,244,239,.66);}
.footer-links a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;
  font-size:13.5px;
  color:rgba(246,244,239,.5);
}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;
  right:24px;bottom:28px;
  width:46px;height:46px;
  border-radius:12px;
  background:var(--ink);
  color:#F6F4EF;
  border:0;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;
  cursor:pointer;
  opacity:0;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease,background .25s ease;
  z-index:1040;
}
.to-top.is-visible{opacity:1;pointer-events:auto;}
.to-top:hover{background:var(--accent);transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .cta-block{padding:52px;}
  .compare-grid{gap:44px;}
  .security-layout{gap:40px;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .main-nav{
    position:fixed;
    inset:72px 0 0 0;
    background:var(--ink-deep);
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:24px 24px 40px;
    transform:translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition:opacity .25s ease,transform .25s ease;
    overflow-y:auto;
  }
  .nav-open .main-nav{opacity:1;transform:translateY(0);pointer-events:auto;}
  .main-nav .nav-link{
    color:#F6F4EF;
    width:100%;
    padding:18px 0;
    border-bottom:1px solid rgba(246,244,239,.14);
    font-size:17px;
  }
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link.active{color:var(--lime);}
  .nav-toggle{display:flex;}
  .nav-cta-desktop{display:none;}
  .nav-open .nav-toggle span:nth-child(1){transform:translateY(3.8px) rotate(45deg);}
  .nav-open .nav-toggle span:nth-child(2){transform:translateY(-3.8px) rotate(-45deg);}
  .anchor-bar{top:72px;}
  .compare-grid{grid-template-columns:1fr;gap:32px;}
  .security-layout{grid-template-columns:1fr;gap:32px;}
  .security-media img{height:320px;}
  .cta-block{grid-template-columns:1fr;gap:32px;padding:44px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero-inner{padding:76px 0 68px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .value-grid{grid-template-columns:1fr;}
  .hero-facts{gap:20px 0;}
  .hero-fact{padding-right:22px;margin-right:22px;}
  .hero-fact b{font-size:22px;}
  .step-item{grid-template-columns:1fr;gap:8px;padding:22px 0;}
  .step-index{font-size:22px;}
  .cta-block{padding:36px 22px;border-radius:14px;}
  .cta-form .field-row{flex-direction:column;}
  .cta-form .btn-main{width:100%;}
  .compare-row{padding:20px;}
  .security-media img{height:240px;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:575.98px){
  .hero-inner{padding:60px 0 56px;}
  .hero-actions .btn-main,.hero-actions .btn-outline{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .accordion-button{padding:17px 18px;font-size:16px;}
  .accordion-body{padding:0 18px 20px 18px;}
}