/* roulang page: index */
:root{
  --brand:#1B4DFF;
  --brand-deep:#0B2A6B;
  --accent:#FF5A1F;
  --pos:#0FA97B;
  --warn:#F5A524;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E6EBF4;
  --text:#0C1526;
  --muted:#5B6779;
  --shadow-sm:0 1px 2px rgba(12,21,38,.06);
  --shadow-card:0 8px 24px rgba(12,21,38,.08);
  --shadow-hover:0 14px 34px rgba(27,77,255,.14);
  --radius-card:16px;
  --radius-btn:12px;
}
*,*::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",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1280px){.container{padding:0 48px}}
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:96px 0}}
.section-alt{background:#fff}
.num{font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* 品牌标识 */
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,#1B4DFF 0%,#0B2A6B 100%);
  color:#fff;font-size:14px;font-weight:800;letter-spacing:.4px;
  transform:skewX(-6deg);box-shadow:0 6px 14px rgba(27,77,255,.26);
}
.logo-mark em{font-style:normal;transform:skewX(6deg)}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.2px;color:var(--text)}
.brand-light .brand-text{color:#fff}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--muted);
  transition:color .2s ease-out,background-color .2s ease-out;
}
.nav-link:hover{color:var(--text);background:rgba(27,77,255,.06)}
.nav-link.active{color:var(--brand);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.cmd-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.cmd-search i{font-size:13px;color:#9AA6B8}
.cmd-search input{border:0;outline:0;background:transparent;width:168px;font-size:14px;color:var(--text)}
.cmd-search input::placeholder{color:#9AA6B8}
.cmd-search:focus-within{border-color:rgba(27,77,255,.55);box-shadow:0 0 0 3px rgba(27,77,255,.12)}
.cmd-search kbd{
  font-size:11px;font-family:inherit;padding:2px 6px;border-radius:6px;
  background:var(--bg);border:1px solid var(--line);color:var(--muted);
}
.quick-link{font-size:14px;font-weight:600;color:var(--muted);padding:6px 4px;transition:color .2s}
.quick-link:hover{color:var(--brand)}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text);cursor:pointer;transition:all .2s;
}
.menu-toggle:hover{border-color:rgba(27,77,255,.4);color:var(--brand)}
.drawer{
  position:fixed;left:0;right:0;top:68px;z-index:55;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 18px 34px rgba(12,21,38,.1);
  padding:16px 20px 22px;
  transform:translateY(-14px);opacity:0;pointer-events:none;
  transition:transform .24s ease-out,opacity .24s ease-out;
}
.drawer.open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 12px;border-radius:12px;font-size:16px;font-weight:600;color:var(--text);
}
.drawer a:hover,.drawer a.active{background:rgba(27,77,255,.07);color:var(--brand)}
.drawer a i{color:#B7C1D2;font-size:13px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .24s ease-out,box-shadow .24s ease-out,background-color .24s ease-out,border-color .24s ease-out,color .24s ease-out;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(27,77,255,.26)}
.btn-primary:hover{background:#0F3FE0;transform:translateY(-2px);box-shadow:0 16px 30px rgba(27,77,255,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(27,77,255,.24)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{border-color:rgba(27,77,255,.45);transform:translateY(-2px);box-shadow:var(--shadow-card)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(255,90,31,.26)}
.btn-accent:hover{background:#E94E14;transform:translateY(-2px);box-shadow:0 16px 30px rgba(255,90,31,.3)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);transition:gap .2s ease-out}
.text-link:hover{gap:10px}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:8px;
  background:rgba(27,77,255,.08);color:var(--brand);
  font-size:13px;font-weight:600;line-height:1.5;
}
.tag-accent{background:rgba(255,90,31,.1);color:var(--accent)}
.tag-pos{background:rgba(15,169,123,.1);color:var(--pos)}
.tag-sm{padding:3px 9px;font-size:12px;border-radius:6px}

/* 卡片 */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .26s ease-out,box-shadow .26s ease-out,border-color .26s ease-out;
}
.card:hover{transform:translateY(-3px);border-color:rgba(27,77,255,.3);box-shadow:var(--shadow-hover)}
.card-pad{padding:24px}
@media (min-width:768px){.card-pad{padding:28px}}

/* Hero */
.hero{position:relative;overflow:hidden;padding:40px 0 56px}
@media (min-width:1024px){.hero{padding:64px 0 88px}}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(720px 340px at 8% 0%,rgba(27,77,255,.09),transparent 70%),
    radial-gradient(560px 320px at 100% 12%,rgba(255,90,31,.07),transparent 72%);
  pointer-events:none;
}
.hero-inner{position:relative;display:grid;gap:40px;align-items:center}
@media (min-width:1024px){
  .hero-inner{grid-template-columns:1.04fr .96fr;gap:56px}
}
.hero-title{
  font-size:30px;line-height:1.22;font-weight:800;letter-spacing:-.6px;margin-top:18px;
}
@media (min-width:768px){.hero-title{font-size:40px}}
@media (min-width:1024px){.hero-title{font-size:48px}}
.hero-title .hl{color:var(--brand)}
.hero-title .dot{color:var(--accent)}
.hero-sub{
  margin-top:18px;font-size:18px;font-weight:700;color:var(--text);line-height:1.6;
}
@media (min-width:768px){.hero-sub{font-size:20px}}
.hero-desc{margin-top:14px;font-size:16px;color:var(--muted);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-point{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--muted);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px;
}
.hero-point i{color:var(--pos);font-size:12px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;
  border:1px solid var(--line);box-shadow:0 24px 48px rgba(12,21,38,.14);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:20px;
  background:linear-gradient(180deg,rgba(27,77,255,.10),rgba(11,42,107,.16));
  pointer-events:none;
}
.hero-float{
  position:absolute;left:16px;bottom:16px;right:16px;
  display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.94);backdrop-filter:blur(6px);
  border:1px solid var(--line);border-radius:14px;padding:14px 16px;
  box-shadow:var(--shadow-card);
}
.hero-float .live-dot{
  width:9px;height:9px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px rgba(255,90,31,.16);flex:0 0 auto;
}
.hero-float strong{font-size:14px;display:block;line-height:1.5}
.hero-float span{font-size:12px;color:var(--muted)}

/* 指标带 */
.metric-band{margin-top:44px}
@media (min-width:1024px){.metric-band{margin-top:64px}}
.metric-grid{display:grid;gap:16px;grid-template-columns:repeat(2,minmax(0,1fr))}
@media (min-width:1024px){.metric-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:0}}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow-sm);
  transition:transform .26s ease-out,box-shadow .26s ease-out;
}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
@media (min-width:1024px){
  .metric{border:0;border-radius:0;box-shadow:none;padding:6px 26px}
  .metric:hover{transform:none;box-shadow:none}
  .metric + .metric{border-left:1px solid var(--line)}
}
.metric .num{font-size:32px;font-weight:800;line-height:1.1;color:var(--brand)}
@media (min-width:1024px){.metric .num{font-size:38px}}
.metric .num small{font-size:14px;font-weight:600;color:var(--muted);margin-left:4px}
.metric h3{font-size:15px;font-weight:700;margin-top:10px}
.metric p{font-size:13px;color:var(--muted);margin-top:4px}

/* 区块标题 */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:34px}
.section-head h2{font-size:24px;font-weight:800;letter-spacing:-.4px;margin-top:14px}
@media (min-width:768px){.section-head h2{font-size:34px}}
.section-head p{font-size:15px;color:var(--muted);margin-top:10px;max-width:640px}
.section-head-center{display:block;text-align:center}
.section-head-center p{margin-left:auto;margin-right:auto}

/* 服务矩阵 */
.matrix{display:grid;gap:20px}
@media (min-width:1024px){.matrix{grid-template-columns:1.35fr 1fr 1fr;grid-template-rows:auto auto}}
.matrix-main{
  display:flex;flex-direction:column;overflow:hidden;padding:0;
}
@media (min-width:1024px){.matrix-main{grid-row:span 2}}
.matrix-main figure{margin:0;overflow:hidden}
.matrix-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.matrix-main .body{padding:26px}
@media (min-width:768px){.matrix-main .body{padding:30px}}
.matrix-main h3{font-size:22px;font-weight:800;margin-top:14px}
.matrix-main p{color:var(--muted);font-size:15px;margin-top:10px}
.matrix-item{display:flex;flex-direction:column;padding:24px}
.matrix-item i.icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:rgba(27,77,255,.08);color:var(--brand);font-size:17px;
}
.matrix-item.accent i.icon{background:rgba(255,90,31,.1);color:var(--accent)}
.matrix-item h3{font-size:18px;font-weight:700;margin-top:16px}
.matrix-item p{font-size:14px;color:var(--muted);margin-top:8px;flex:1}
.matrix-item .text-link{margin-top:18px}

/* 对比 */
.compare{display:grid;gap:20px}
@media (min-width:1024px){.compare{grid-template-columns:1fr auto 1fr;align-items:stretch;gap:24px}}
.compare-card{border-radius:var(--radius-card);padding:26px;border:1px solid var(--line)}
@media (min-width:768px){.compare-card{padding:30px}}
.compare-before{background:#fff}
.compare-after{background:rgba(27,77,255,.06);border-color:rgba(27,77,255,.24)}
.compare-card h3{font-size:18px;font-weight:800;display:flex;align-items:center;gap:10px}
.compare-card h3 i{font-size:15px}
.compare-before h3 i{color:var(--muted)}
.compare-after h3 i{color:var(--brand)}
.compare-list{margin-top:18px;display:grid;gap:14px}
.compare-list li{display:flex;gap:10px;font-size:15px;line-height:1.7;color:var(--muted)}
.compare-after .compare-list li{color:#26324A;font-weight:500}
.compare-list li i{margin-top:6px;font-size:12px;flex:0 0 auto}
.compare-before .compare-list li i{color:#B7C1D2}
.compare-after .compare-list li i{color:var(--brand)}
.compare-arrow{
  display:none;align-items:center;justify-content:center;
  width:56px;height:56px;border-radius:50%;background:#fff;
  border:1px solid var(--line);color:var(--accent);
  box-shadow:var(--shadow-card);align-self:center;font-size:18px;
}
@media (min-width:1024px){.compare-arrow{display:inline-flex}}
.compare-stack{display:grid;gap:24px}
@media (min-width:1024px){.compare-stack{grid-template-columns:1fr 1fr;gap:28px;align-items:stretch}}
.compare-panel{padding:26px;border-radius:var(--radius-card);border:1px solid var(--line);background:#fff}
.bar-row{margin-top:16px}
.bar-row .bar-head{display:flex;justify-content:space-between;font-size:14px;font-weight:600}
.bar-row .bar-head span:last-child{color:var(--brand);font-variant-numeric:tabular-nums}
.bar-track{margin-top:8px;height:8px;border-radius:999px;background:var(--line);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#1B4DFF,#4C7BFF)}
.bar-fill.alt{background:linear-gradient(90deg,#FF5A1F,#FF8A5C)}

/* 流程 */
.flow{display:grid;gap:18px}
@media (min-width:768px){.flow{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.flow{grid-template-columns:repeat(4,minmax(0,1fr))}}
.flow-step{position:relative;padding:26px 22px;border-radius:var(--radius-card);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:all .26s ease-out}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(27,77,255,.3)}
.flow-step .step-no{
  font-size:34px;font-weight:800;line-height:1;color:rgba(27,77,255,.2);
  font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:17px;font-weight:700;margin-top:14px}
.flow-step p{font-size:14px;color:var(--muted);margin-top:8px}

/* 评价 */
.quotes{display:grid;gap:20px}
@media (min-width:768px){.quotes{grid-template-columns:repeat(3,minmax(0,1fr))}}
.quote{padding:26px;display:flex;flex-direction:column;gap:16px}
.quote .stars{color:var(--accent);font-size:13px;letter-spacing:2px}
.quote p{font-size:15px;color:#26324A;line-height:1.8}
.quote .who{display:flex;align-items:center;gap:12px;margin-top:auto}
.avatar{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(27,77,255,.1);color:var(--brand);font-weight:700;font-size:14px;flex:0 0 auto;
}
.who strong{display:block;font-size:14px}
.who span{font-size:13px;color:var(--muted)}

/* 资讯列表 */
.news-grid{display:grid;gap:22px}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.news-card{overflow:hidden}
.news-card a{display:flex;flex-direction:column;height:100%;padding:0 0 22px}
.thumb{overflow:hidden;border-top-left-radius:var(--radius-card);border-top-right-radius:var(--radius-card);background:rgba(27,77,255,.06)}
.thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease-out}
.news-card:hover .thumb img{transform:scale(1.045)}
.news-card .tag{margin:18px 22px 0;align-self:flex-start}
.news-title{
  margin:12px 22px 0;font-size:17px;font-weight:700;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  margin:10px 22px 0;font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin:16px 22px 0;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.news-meta .arrow{color:var(--brand);font-weight:600}
.empty-state{
  border:1px dashed rgba(27,77,255,.3);border-radius:var(--radius-card);
  background:rgba(27,77,255,.04);padding:56px 24px;text-align:center;
}
.empty-state i{font-size:26px;color:rgba(27,77,255,.45)}
.empty-state p{margin-top:14px;font-size:15px;color:var(--muted)}
.empty-state .btn{margin-top:22px}

/* FAQ */
.faq-grid{display:grid;gap:14px}
@media (min-width:1024px){.faq-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 22px}}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.faq-item.open{border-color:rgba(27,77,255,.35);box-shadow:var(--shadow-card)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:700;color:var(--text);cursor:pointer;
}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .24s ease-out}
.faq-icon::before{top:8px;left:0;width:18px;height:2px}
.faq-icon::after{top:0;left:8px;width:2px;height:18px}
.faq-item.open .faq-icon::after{transform:rotate(90deg) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{padding:0 22px 22px;font-size:15px;color:var(--muted);line-height:1.8}

/* CTA 表单 */
.cta-card{
  border-radius:22px;overflow:hidden;
  background:linear-gradient(120deg,#0B2A6B 0%,#123B96 62%,#1B4DFF 100%);
  box-shadow:0 26px 54px rgba(11,42,107,.26);
  display:grid;
}
@media (min-width:1024px){.cta-card{grid-template-columns:1fr 1.05fr;align-items:center}}
.cta-left{padding:34px 28px;color:#fff}
@media (min-width:768px){.cta-left{padding:48px 44px}}
.cta-left h2{font-size:24px;font-weight:800;line-height:1.3;margin-top:16px}
@media (min-width:768px){.cta-left h2{font-size:32px}}
.cta-left p{margin-top:14px;color:rgba(255,255,255,.78);font-size:15px}
.cta-left .tag{background:rgba(255,255,255,.14);color:#fff}
.cta-points{margin-top:24px;display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.86)}
.cta-points li i{color:#7FB0FF;margin-top:5px;font-size:12px}
.cta-form-wrap{margin:0 20px 20px;background:#fff;border-radius:16px;padding:26px}
@media (min-width:768px){.cta-form-wrap{margin:0 32px 32px;padding:32px}}
@media (min-width:1024px){.cta-form-wrap{margin:36px 36px 36px 0;padding:34px}}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field .req{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);vertical-align:middle;margin-left:6px}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:12px;background:#fff;
  padding:11px 14px;font-size:15px;line-height:1.5;outline:0;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field input{height:44px}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field textarea:focus{border-color:rgba(27,77,255,.55);box-shadow:0 0 0 3px rgba(27,77,255,.12)}
.form-note{font-size:12px;color:var(--muted);margin-top:14px;line-height:1.7}
.form-success{
  display:none;margin-top:14px;padding:12px 14px;border-radius:10px;
  background:rgba(15,169,123,.1);color:var(--pos);font-size:14px;font-weight:600;
}

/* 页脚 */
.site-footer{background:#0B1220;color:#C6CFDE;padding:60px 0 28px;margin-top:0}
.footer-grid{display:grid;gap:34px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-brand p{margin-top:16px;font-size:14px;color:#8E9BB0;max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:#9AA7BC;transition:color .2s ease-out}
.footer-col a:hover{color:#fff}
.footer-col .contact-line{font-size:14px;color:#9AA7BC;display:flex;gap:8px;align-items:flex-start}
.footer-col .contact-line i{color:#4C7BFF;margin-top:5px;font-size:12px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7C8A9F;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);overflow-x:auto;white-space:nowrap}

@media (max-width:1023px){
  .main-nav,.cmd-search,.quick-link{display:none}
  .menu-toggle{display:inline-flex}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%}
  .brand-text{font-size:16px}
  .hero-float{left:12px;right:12px;bottom:12px;padding:12px 14px}
}

/* roulang page: article */
:root{
    --brand:#1B4DFF;
    --brand-deep:#0B2A6B;
    --accent:#FF5A1F;
    --pos:#0FA97B;
    --warn:#F5A524;
    --bg:#F6F8FC;
    --surface:#FFFFFF;
    --line:#E6EBF4;
    --text:#0C1526;
    --muted:#5B6779;
    --radius-card:16px;
    --radius-btn:12px;
    --radius-pill:999px;
    --shadow-sm:0 1px 2px rgba(12,21,38,.06);
    --shadow-card:0 8px 24px rgba(12,21,38,.08);
    --shadow-hover:0 14px 34px rgba(27,77,255,.14);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    background:var(--bg);
    color:var(--text);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  h1,h2,h3,h4{margin:0;line-height:1.22;font-weight:800;letter-spacing:-.01em}
  p{margin:0}
  ul,ol{margin:0;padding:0}
  a{color:inherit}
  button,input,textarea,select{font:inherit;color:inherit}
  .tnum{font-variant-numeric:tabular-nums}
  .container{
    width:100% !important;
    max-width:1200px !important;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:768px){.container{padding-left:32px;padding-right:32px}}
  @media (min-width:1024px){.container{padding-left:48px;padding-right:48px}}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;text-decoration:none;border:1px solid transparent;
    cursor:pointer;transition:background .22s ease-out,box-shadow .22s ease-out,transform .22s ease-out,border-color .22s ease-out,color .22s ease-out;
    white-space:nowrap;
  }
  .btn-sm{height:38px;padding:0 18px;font-size:14px}
  .btn-lg{height:48px;padding:0 26px}
  .btn-primary{background:var(--brand);color:#fff;border-radius:var(--radius-pill)}
  .btn-primary:hover{background:var(--brand-deep);box-shadow:0 10px 24px rgba(27,77,255,.24);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(0);box-shadow:none}
  .btn-outline{background:#fff;border-color:var(--line);color:var(--brand)}
  .btn-outline:hover{border-color:var(--brand);box-shadow:0 8px 20px rgba(27,77,255,.12);transform:translateY(-1px)}
  .btn-ghost{background:transparent;color:var(--brand);padding:0 6px;height:auto}
  .btn-ghost:hover{text-decoration:underline}
  .btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
  .btn[disabled]{opacity:.4;cursor:not-allowed}

  /* ---------- 顶部命令栏 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.88);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;gap:24px;height:72px}
  .brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
  .brand .logo-mark{
    width:36px;height:36px;border-radius:10px;
    background:linear-gradient(135deg,var(--brand),var(--brand-deep));
    display:grid;place-items:center;color:#fff;
    box-shadow:0 6px 16px rgba(27,77,255,.26);
    transform:skewX(-6deg);
  }
  .brand .logo-mark em{font-style:normal;font-weight:800;font-size:14px;letter-spacing:.4px;transform:skewX(6deg)}
  .brand-text{font-weight:800;font-size:17px;color:var(--text);letter-spacing:-.01em}
  .main-nav{display:flex;align-items:center;gap:2px;margin-left:4px}
  .nav-link{
    position:relative;display:flex;align-items:center;height:72px;padding:0 14px;
    font-size:15px;font-weight:500;color:var(--muted);text-decoration:none;
    transition:color .2s ease-out;
  }
  .nav-link:hover{color:var(--brand)}
  .nav-link.active{color:var(--brand-deep);font-weight:600}
  .nav-link.active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;
    border-radius:2px;background:var(--brand);
  }
  .nav-link:focus-visible{outline:2px solid var(--brand);outline-offset:-6px;border-radius:8px}
  .header-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
  .nav-search{
    display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
    border:1px solid var(--line);border-radius:var(--radius-pill);background:#fff;
    min-width:246px;transition:border-color .2s ease-out,box-shadow .2s ease-out;
  }
  .nav-search i{color:var(--muted);font-size:13px}
  .nav-search input{border:0;outline:0;background:transparent;flex:1;font-size:14px;min-width:60px}
  .nav-search input::placeholder{color:#93A0B4}
  .nav-search kbd{font-size:11px;line-height:1;padding:3px 6px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--muted)}
  .nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,77,255,.12)}
  .icon-btn{
    width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:12px;
    display:none;place-items:center;cursor:pointer;color:var(--text);
    transition:border-color .2s ease-out,color .2s ease-out;
  }
  .icon-btn:hover{border-color:var(--brand);color:var(--brand)}
  .icon-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
  .nav-toggle{display:none}
  .mobile-drawer{
    display:none;border-top:1px solid var(--line);background:#fff;
    padding:16px 0 22px;
  }
  .mobile-drawer.is-open{display:block}
  .mobile-drawer .drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:14px}
  .mobile-drawer .drawer-nav a{
    display:block;padding:12px 14px;border-radius:12px;text-decoration:none;
    font-size:15px;font-weight:500;color:var(--text);background:var(--bg);
  }
  .mobile-drawer .drawer-nav a.active{background:rgba(27,77,255,.08);color:var(--brand);font-weight:600}
  .mobile-drawer .drawer-search{
    display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;border:1px solid var(--line);
    border-radius:12px;margin-bottom:14px;
  }
  .mobile-drawer .drawer-search input{border:0;outline:0;flex:1;background:transparent;font-size:15px}
  .mobile-drawer .btn{width:100%}

  @media (max-width:1023px){
    .main-nav,.nav-search,.header-tools .btn{display:none}
    .nav-toggle{display:grid}
    .header-inner{height:64px;gap:14px}
  }

  /* ---------- 面包屑 ---------- */
  .breadcrumb{padding:22px 0 0}
  .breadcrumb ol{
    list-style:none;display:flex;align-items:center;gap:8px;
    font-size:13px;color:var(--muted);overflow-x:auto;white-space:nowrap;
    padding-bottom:4px;scrollbar-width:none;
  }
  .breadcrumb ol::-webkit-scrollbar{display:none}
  .breadcrumb li{display:flex;align-items:center;gap:8px;flex:0 0 auto}
  .breadcrumb li+li::before{content:"/";color:#B9C3D4}
  .breadcrumb a{color:var(--muted);text-decoration:none}
  .breadcrumb a:hover{color:var(--brand)}
  .breadcrumb li[aria-current]{color:var(--text);font-weight:600;max-width:340px;overflow:hidden;text-overflow:ellipsis}

  /* ---------- 文章头 ---------- */
  .article-head{padding:18px 0 40px}
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:8px;font-size:13px;font-weight:600;
    background:rgba(27,77,255,.08);color:var(--brand);text-decoration:none;
    border:1px solid transparent;transition:background .2s ease-out,border-color .2s ease-out;
  }
  .tag:hover{background:rgba(27,77,255,.14);border-color:rgba(27,77,255,.3)}
  .article-title{font-size:30px;margin:18px 0 0;letter-spacing:-.02em;line-height:1.25}
  @media (min-width:1024px){.article-title{font-size:44px;line-height:1.18}}
  .article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:22px;font-size:14px;color:var(--muted)}
  .article-meta .meta-item{display:inline-flex;align-items:center;gap:8px}
  .article-meta i{color:#93A0B4;font-size:13px}
  .article-meta .dot{width:5px;height:5px;border-radius:50%;background:#CBD5E5}

  /* ---------- 文章主体 ---------- */
  .article-wrap{padding-bottom:8px}
  .article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
  @media (max-width:1023px){.article-layout{grid-template-columns:1fr;gap:36px}}
  .article-panel{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);padding:26px 22px;
  }
  @media (min-width:768px){.article-panel{padding:40px 44px}}
  .article-body{font-size:16.5px;line-height:1.8;color:var(--text);overflow-wrap:break-word}
  .article-body > *:first-child{margin-top:0}
  .article-body > p{margin:0 0 1.2em}
  .article-body h2{
    font-size:26px;margin:2em 0 .8em;padding-left:16px;position:relative;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;
    border-radius:4px;background:var(--brand);
  }
  .article-body h3{font-size:20px;margin:1.7em 0 .6em;font-weight:700}
  .article-body h4{font-size:17px;margin:1.4em 0 .5em;font-weight:700;color:var(--brand-deep)}
  .article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
  .article-body li{margin-bottom:.5em}
  .article-body ul li::marker{color:var(--brand)}
  .article-body ol li::marker{color:var(--brand);font-weight:700}
  .article-body strong{font-weight:700;color:var(--brand-deep)}
  .article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;word-break:break-word}
  .article-body a:hover{color:var(--brand-deep)}
  .article-body blockquote{
    margin:1.5em 0;padding:16px 20px;border-left:3px solid var(--brand);
    background:rgba(27,77,255,.06);border-radius:0 12px 12px 0;color:var(--brand-deep);
  }
  .article-body blockquote p:last-child{margin-bottom:0}
  .article-body img{border-radius:14px;margin:1.5em auto;height:auto}
  .article-body figure{margin:1.5em 0}
  .article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
  .article-body table{
    width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;
    display:block;overflow-x:auto;white-space:nowrap;
  }
  .article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
  .article-body thead th{background:rgba(27,77,255,.06);font-weight:700;color:var(--brand-deep)}
  .article-body tbody tr:nth-child(even){background:#FAFBFE}
  .article-body pre{
    background:#F1F4FA;border-radius:12px;padding:16px 18px;overflow-x:auto;
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;line-height:1.7;
    margin:1.5em 0;
  }
  .article-body code{
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
    background:rgba(27,77,255,.08);border-radius:6px;padding:2px 6px;font-size:.92em;
  }
  .article-body pre code{background:transparent;padding:0}
  .article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
  .article-body::after{content:"";display:block;clear:both}

  .article-empty{
    text-align:center;padding:34px 20px 40px;
  }
  .article-empty i{font-size:34px;color:#C3CDDF}
  .article-empty h2{font-size:22px;margin:16px 0 10px}
  .article-empty p{color:var(--muted);font-size:15px;margin-bottom:22px}

  /* ---------- 标签行 ---------- */
  .tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
  .tag-row .tag-label{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.02em}
  .tag-row .tag{background:var(--bg);color:var(--muted);border:1px solid var(--line)}
  .tag-row .tag:hover{background:rgba(27,77,255,.08);color:var(--brand);border-color:rgba(27,77,255,.3)}

  /* ---------- 侧栏 ---------- */
  .article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
  @media (max-width:1023px){.article-side{position:static}}
  .side-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-sm);padding:22px;
    transition:box-shadow .25s ease-out,border-color .25s ease-out,transform .25s ease-out;
  }
  .side-card:hover{box-shadow:var(--shadow-card);border-color:rgba(27,77,255,.3)}
  .side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
  .side-card h3 i{color:var(--brand);font-size:14px}
  .side-list{list-style:none;display:flex;flex-direction:column;gap:12px}
  .side-list li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.65}
  .side-list li span.num{
    flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:rgba(27,77,255,.08);
    color:var(--brand);font-size:12px;font-weight:700;display:grid;place-items:center;margin-top:3px;
  }
  .side-links{display:flex;flex-direction:column;gap:10px;margin-top:6px}
  .side-links a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:12px 14px;border-radius:12px;background:var(--bg);text-decoration:none;
    font-size:14px;font-weight:600;color:var(--text);transition:background .2s ease-out,color .2s ease-out;
  }
  .side-links a:hover{background:rgba(27,77,255,.08);color:var(--brand)}
  .side-links a i{font-size:12px;color:var(--brand)}
  .side-cta{
    background:linear-gradient(150deg,var(--brand-deep),#123a8f);
    border:0;color:#fff;
  }
  .side-cta h3{color:#fff}
  .side-cta p{font-size:14px;color:rgba(255,255,255,.78);line-height:1.75;margin-bottom:16px}
  .side-cta .btn{width:100%;background:#fff;color:var(--brand-deep);border-radius:var(--radius-pill)}
  .side-cta .btn:hover{background:rgba(255,255,255,.88);transform:translateY(-1px)}

  /* ---------- 相关推荐 ---------- */
  .section{padding:56px 0}
  @media (min-width:1024px){.section{padding:80px 0}}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;
    color:var(--brand);text-transform:uppercase;
  }
  .eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--accent)}
  .section-head h2{font-size:24px;margin-top:10px}
  @media (min-width:1024px){.section-head h2{font-size:32px}}
  .related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
  @media (max-width:1023px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (max-width:639px){.related-grid{grid-template-columns:1fr}}
  .related-card{
    display:flex;gap:14px;align-items:center;text-decoration:none;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:14px;box-shadow:var(--shadow-sm);
    transition:transform .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
  }
  .related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(27,77,255,.3)}
  .related-thumb{
    flex:0 0 96px;width:96px;aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:rgba(27,77,255,.08);
  }
  .related-thumb img{width:100%;height:100%;object-fit:cover}
  .related-info h3{font-size:15px;line-height:1.5;margin-bottom:8px}
  .related-info .related-time{font-size:12.5px;color:var(--muted);display:inline-flex;align-items:center;gap:6px}
  .related-fallback{
    background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);
    padding:28px;text-align:center;
  }
  .related-fallback p{color:var(--muted);font-size:15px;margin-bottom:16px}

  /* ---------- CTA ---------- */
  .cta-card{
    background:linear-gradient(140deg,var(--brand-deep) 0%,#123a8f 55%,#14348c 100%);
    border-radius:22px;padding:32px 24px;color:#fff;
    display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:36px;align-items:center;
    box-shadow:0 24px 60px rgba(11,42,107,.28);
  }
  @media (min-width:1024px){.cta-card{padding:52px 56px;gap:56px}}
  @media (max-width:1023px){.cta-card{grid-template-columns:1fr;gap:28px}}
  .cta-copy h2{font-size:26px;margin:14px 0 14px}
  @media (min-width:1024px){.cta-copy h2{font-size:34px}}
  .cta-copy p{color:rgba(255,255,255,.8);font-size:15px;max-width:520px}
  .cta-points{list-style:none;display:flex;flex-wrap:wrap;gap:12px 22px;margin-top:22px}
  .cta-points li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.86)}
  .cta-points i{color:#7FA6FF;font-size:12px}
  .cta-form{
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
    border-radius:18px;padding:22px;
  }
  .form-row{margin-bottom:14px}
  .form-row label{display:flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:rgba(255,255,255,.9);margin-bottom:7px}
  .req{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
  .form-row input,.form-row textarea{
    width:100%;height:44px;padding:0 14px;border-radius:12px;
    border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.96);
    color:var(--text);font-size:15px;outline:0;
    transition:box-shadow .2s ease-out,border-color .2s ease-out;
  }
  .form-row textarea{height:88px;padding:11px 14px;resize:vertical;line-height:1.6}
  .form-row input:focus,.form-row textarea:focus{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.28)}
  .form-hint{min-height:18px;font-size:12.5px;color:rgba(255,255,255,.62);margin-top:4px}
  .form-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}
  @media (min-width:768px){.form-actions{align-items:flex-end}}
  .form-actions .btn{background:var(--accent);color:#fff;border-radius:var(--radius-pill);width:100%}
  .form-actions .btn:hover{background:#e64f19;box-shadow:0 12px 28px rgba(255,90,31,.3);transform:translateY(-1px)}
  @media (min-width:768px){.form-actions .btn{width:auto}}
  .privacy-note{font-size:12.5px;color:rgba(255,255,255,.6);text-align:left}
  @media (min-width:768px){.privacy-note{text-align:right}}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--brand-deep);color:rgba(255,255,255,.74);padding:60px 0 26px;margin-top:80px}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
  @media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
  @media (max-width:639px){.footer-grid{grid-template-columns:1fr}}
  .footer-brand .brand-light{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
  .brand-light .logo-mark{background:rgba(255,255,255,.14);box-shadow:none}
  .footer-brand .brand-text{color:#fff;font-size:17px;font-weight:800}
  .footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;max-width:330px;color:rgba(255,255,255,.7)}
  .footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
  .footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
  .footer-col a{color:rgba(255,255,255,.74);text-decoration:none;font-size:14px;transition:color .2s ease-out}
  .footer-col a:hover{color:#fff}
  .footer-col a:focus-visible{outline:2px solid rgba(255,255,255,.7);outline-offset:2px;border-radius:4px}
  .contact-line{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.74)}
  .contact-line i{color:rgba(255,255,255,.5);font-size:13px}
  .footer-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;
    font-size:13px;color:rgba(255,255,255,.58);
  }

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  }

/* roulang page: category1 */
:root{
  --brand:#1B4DFF;
  --brand-deep:#0B2A6B;
  --accent:#FF5A1F;
  --pos:#0FA97B;
  --warn:#F5A524;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E6EBF4;
  --text:#0C1526;
  --muted:#5B6779;
  --brand-06:rgba(27,77,255,.06);
  --brand-10:rgba(27,77,255,.10);
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-sm:0 1px 2px rgba(12,21,38,.06);
  --shadow-card:0 8px 24px rgba(12,21,38,.08);
  --shadow-hover:0 14px 34px rgba(27,77,255,.14);
  --container:1220px;
}
*,*::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",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.22;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}
@media (min-width:1024px){.container{padding:0 48px;}}
.num{font-variant-numeric:tabular-nums;letter-spacing:.01em;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:26px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  display:grid;place-items:center;position:relative;overflow:hidden;
}
.logo-mark::after{
  content:"";position:absolute;right:-6px;bottom:-6px;width:18px;height:18px;
  background:var(--accent);transform:skewX(-18deg);opacity:.9;
}
.logo-mark em{font-style:normal;font-size:15px;font-weight:800;color:#fff;position:relative;z-index:1;letter-spacing:.02em;}
.brand-text{font-size:17px;font-weight:800;color:var(--text);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 15px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--muted);transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-06);}
.nav-link.active{color:var(--brand);background:var(--brand-10);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.cmd-search{
  display:flex;align-items:center;gap:9px;height:40px;padding:0 12px;min-width:236px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cmd-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,77,255,.12);}
.cmd-search i{color:var(--muted);font-size:13px;}
.cmd-search input{border:0;outline:0;background:transparent;flex:1;font-size:14px;min-width:0;}
.cmd-search kbd{
  font-family:inherit;font-size:11px;font-weight:700;color:var(--muted);
  background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:2px 7px;line-height:1.4;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:50px;padding:0 28px;font-size:16px;}
.btn-primary{background:var(--brand);color:#fff;border-radius:999px;}
.btn-primary:hover{background:#123fe0;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);border-radius:999px;}
.btn-ghost:hover{border-color:rgba(27,77,255,.4);background:var(--brand-06);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;border-radius:999px;}
.btn-accent:hover{background:#ea4c13;transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,90,31,.24);}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);border-radius:999px;}
.btn-line:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text);cursor:pointer;place-items:center;font-size:16px;
}
.nav-toggle:hover{border-color:rgba(27,77,255,.4);color:var(--brand);}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0 20px;}
.mobile-drawer.open{display:block;}
.mobile-drawer .nav-link{display:flex;width:100%;height:46px;border-radius:12px;padding:0 14px;font-size:15px;}
.mobile-drawer .drawer-cta{margin-top:12px;display:grid;gap:10px;}
.mobile-drawer .cmd-search{min-width:0;width:100%;margin:10px 0 4px;}
@media (max-width:1023px){
  .main-nav{display:none;}
  .cmd-search{display:none;}
  .nav-toggle{display:grid;}
  .header-inner{gap:14px;}
}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.09;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.9) 0%,rgba(246,248,252,.96) 100%);
}
.page-hero > .container{position:relative;z-index:2;padding-top:28px;padding-bottom:64px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);overflow-x:auto;white-space:nowrap;padding-bottom:4px;}
.breadcrumb::-webkit-scrollbar{height:0;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span.sep{color:#c3cad8;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;margin-top:26px;}
.badge{
  display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:8px;
  background:var(--brand-10);color:var(--brand);font-size:13px;font-weight:700;
}
.badge-accent{background:rgba(255,90,31,.10);color:var(--accent);}
.hero-title{font-size:30px;margin-top:18px;}
.hero-title .hl{color:var(--brand);}
.hero-lede{font-size:16px;color:var(--muted);line-height:1.8;margin-top:16px;max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-points{display:grid;gap:12px;margin-top:30px;}
.hero-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--muted);}
.hero-points i{color:var(--pos);font-size:14px;margin-top:5px;}
.hero-visual{position:relative;}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:20px;box-shadow:var(--shadow-card);}
.hero-visual-tag{
  position:absolute;left:18px;bottom:18px;right:18px;
  background:rgba(255,255,255,.94);backdrop-filter:blur(6px);
  border-radius:14px;padding:14px 16px;display:flex;align-items:center;gap:12px;
  box-shadow:var(--shadow-sm);
}
.hero-visual-tag .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);flex:0 0 auto;box-shadow:0 0 0 4px rgba(255,90,31,.16);}
.hero-visual-tag p{font-size:13.5px;font-weight:600;color:var(--text);}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .hero-title{font-size:28px;}
  .page-hero > .container{padding-bottom:48px;}
}
@media (min-width:1024px){
  .hero-title{font-size:46px;}
  .hero-lede{font-size:17px;}
}

/* ---------- sections ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.rail{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.rail-line{width:34px;height:3px;border-radius:999px;background:var(--accent);}
.rail-text{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--muted);text-transform:uppercase;}
.section-title{font-size:24px;}
@media (min-width:1024px){.section-title{font-size:34px;}}
.section-sub{font-size:15.5px;color:var(--muted);margin-top:14px;max-width:680px;}
.section-head{margin-bottom:34px;}
@media (min-width:1024px){.section-head{margin-bottom:52px;}}

/* ---------- numbered cards ---------- */
.num-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.num-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.num-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(27,77,255,.3);}
.num-card .num{font-size:34px;font-weight:800;color:var(--brand);opacity:.24;line-height:1;}
.num-card h3{font-size:18px;margin-top:14px;}
.num-card p{font-size:14.5px;color:var(--muted);margin-top:10px;flex:1;}
.num-card .link-arrow{
  margin-top:18px;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--brand);
}
.num-card .link-arrow i{transition:transform .2s ease;}
.num-card:hover .link-arrow i{transform:translateX(4px);}
@media (max-width:1023px){.num-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:560px){.num-grid{grid-template-columns:1fr;}}

/* ---------- article-like long copy ---------- */
.copy-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start;}
.copy-block h2{font-size:22px;margin-bottom:14px;}
.copy-block h3{font-size:18px;margin:26px 0 10px;}
.copy-block p{font-size:15.8px;color:var(--muted);margin-bottom:16px;}
.copy-block p strong{color:var(--text);font-weight:700;}
.copy-list{display:grid;gap:12px;margin:6px 0 20px;}
.copy-list li{display:flex;gap:12px;font-size:15.2px;color:var(--muted);}
.copy-list li i{color:var(--brand);margin-top:6px;font-size:13px;}
.copy-media{border-radius:20px;overflow:hidden;box-shadow:var(--shadow-card);border:1px solid var(--line);background:#fff;}
.copy-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.copy-media figcaption{font-size:13px;color:var(--muted);padding:14px 18px;border-top:1px solid var(--line);}
@media (max-width:900px){.copy-grid{grid-template-columns:1fr;gap:30px;}}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:8px;}
.flow-step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;position:relative;transition:transform .25s ease,box-shadow .25s ease;
}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-card);}
.flow-step .step-no{
  width:34px;height:34px;border-radius:10px;background:var(--brand-10);color:var(--brand);
  display:grid;place-items:center;font-size:14px;font-weight:800;
}
.flow-step h3{font-size:16.5px;margin-top:16px;}
.flow-step p{font-size:14px;color:var(--muted);margin-top:8px;}
@media (max-width:900px){.flow{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:520px){.flow{grid-template-columns:1fr;}}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-card{border-radius:20px;padding:30px 28px;border:1px solid var(--line);}
.compare-before{background:#fff;}
.compare-after{background:rgba(27,77,255,.06);border-color:rgba(27,77,255,.18);}
.compare-card h3{font-size:19px;display:flex;align-items:center;gap:10px;}
.compare-card h3 .tag{
  font-size:12px;font-weight:700;padding:3px 10px;border-radius:8px;
  background:#eef2f9;color:var(--muted);
}
.compare-after h3 .tag{background:var(--brand);color:#fff;}
.compare-list{display:grid;gap:14px;margin-top:22px;}
.compare-list li{display:flex;gap:12px;font-size:15px;color:var(--muted);align-items:flex-start;}
.compare-list li i{margin-top:5px;font-size:14px;}
.compare-before .compare-list li i{color:#B4BCCA;}
.compare-after .compare-list li i{color:var(--brand);}
.compare-after .compare-list li{color:#22314a;}
@media (max-width:768px){
  .compare{grid-template-columns:1fr;}
  .compare-before{order:2;}
  .compare-after{order:1;}
}

/* ---------- metric strip ---------- */
.metric-strip{
  background:linear-gradient(135deg,var(--brand-deep) 0%,#123a8f 100%);
  border-radius:22px;padding:34px 30px;color:#fff;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;
}
.metric-strip .metric h3{font-size:17px;color:#fff;display:flex;align-items:center;gap:9px;}
.metric-strip .metric h3 i{color:#8FB0FF;font-size:15px;}
.metric-strip .metric p{font-size:13.5px;color:rgba(255,255,255,.72);margin-top:8px;}
.metric-strip .metric{border-left:1px solid rgba(255,255,255,.16);padding-left:20px;}
.metric-strip .metric:first-child{border-left:0;padding-left:0;}
@media (max-width:900px){
  .metric-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;padding:28px 22px;}
  .metric-strip .metric{border-left:0;padding-left:0;}
}
@media (max-width:520px){.metric-strip{grid-template-columns:1fr;}}

/* ---------- related links ---------- */
.related{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.related-card{
  display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px 22px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(27,77,255,.3);}
.related-card .ico{
  width:46px;height:46px;border-radius:12px;background:var(--brand-10);color:var(--brand);
  display:grid;place-items:center;font-size:18px;flex:0 0 auto;
}
.related-card h3{font-size:16.5px;}
.related-card p{font-size:14px;color:var(--muted);margin-top:6px;}
.related-card .arrow{margin-left:auto;color:var(--brand);font-size:15px;}
@media (max-width:640px){.related{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(27,77,255,.28);}
.faq-item.open{box-shadow:var(--shadow-card);border-color:rgba(27,77,255,.3);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;text-align:left;padding:20px 22px;cursor:pointer;
  font-size:16px;font-weight:700;color:var(--text);line-height:1.5;
}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--brand-06);color:var(--brand);
  display:grid;place-items:center;font-size:12px;transition:transform .25s ease,background-color .25s ease;
}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--brand);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-item.open .faq-a{max-height:420px;}
.faq-a p{padding:0 22px 20px;font-size:14.8px;color:var(--muted);line-height:1.8;}
@media (max-width:900px){.faq-grid{grid-template-columns:1fr;}}

/* ---------- CTA ---------- */
.cta-card{
  background:linear-gradient(135deg,var(--brand-deep) 0%,#123a8f 100%);
  border-radius:26px;padding:40px 32px;color:#fff;
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;
}
.cta-card h2{font-size:24px;color:#fff;}
.cta-card .cta-sub{font-size:15px;color:rgba(255,255,255,.76);margin-top:14px;}
.cta-points{display:grid;gap:11px;margin-top:22px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.8);}
.cta-points i{color:#8FB0FF;margin-top:5px;font-size:13px;}
.form-grid{display:grid;gap:16px;}
.field label{display:flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:rgba(255,255,255,.86);margin-bottom:8px;}
.field label .req{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.field input,.field textarea{
  width:100%;background:#fff;border:1px solid transparent;border-radius:var(--radius-btn);
  padding:0 14px;height:46px;font-size:14.5px;color:var(--text);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#9AA4B4;}
.field input:focus,.field textarea:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,90,31,.28);}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;justify-content:space-between;}
.form-note{font-size:12.5px;color:rgba(255,255,255,.62);}
.form-msg{
  display:none;font-size:13.5px;color:#fff;background:rgba(15,169,123,.28);
  border:1px solid rgba(15,169,123,.5);border-radius:10px;padding:10px 14px;
}
@media (max-width:900px){
  .cta-card{grid-template-columns:1fr;gap:30px;padding:32px 22px;}
  .cta-card h2{font-size:21px;}
  .form-foot{flex-direction:column;align-items:stretch;}
  .form-foot .btn{width:100%;}
}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.7);padding:60px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.15fr;gap:36px;}
.brand-light .brand-text{color:#fff;}
.brand-light .logo-mark{background:linear-gradient(135deg,rgba(255,255,255,.22),rgba(255,255,255,.08));}
.brand-light .logo-mark::after{background:var(--accent);}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:16px;color:rgba(255,255,255,.66);max-width:320px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul li{margin-bottom:11px;font-size:14px;}
.footer-col a{color:rgba(255,255,255,.7);transition:color .2s ease;}
.footer-col a:hover{color:#fff;}
.contact-line{display:inline-flex;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.7);}
.contact-line i{color:#8FB0FF;font-size:13px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.58);
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand p{max-width:none;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category2 */
:root{
  --brand:#1B4DFF;
  --brand-deep:#0B2A6B;
  --accent:#FF5A1F;
  --pos:#0FA97B;
  --warn:#F5A524;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E6EBF4;
  --text:#0C1526;
  --muted:#5B6779;
  --brand-soft:rgba(27,77,255,.08);
  --brand-soft-2:rgba(27,77,255,.14);
  --accent-soft:rgba(255,90,31,.10);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(12,21,38,.06);
  --shadow-card:0 8px 24px rgba(12,21,38,.08);
  --shadow-hover:0 14px 34px rgba(27,77,255,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.site-body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
input,textarea,select{font:inherit}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 48px}}
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:96px 0}}
.section-tight{padding:48px 0}
@media (min-width:1024px){.section-tight{padding:72px 0}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:36px;height:36px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  display:grid;place-items:center;color:#fff;
  box-shadow:0 6px 16px rgba(27,77,255,.28);
}
.logo-mark em{font-style:italic;font-weight:800;font-size:15px;letter-spacing:.5px}
.brand-text{font-weight:800;font-size:17px;letter-spacing:.2px;color:var(--text);white-space:nowrap}
.main-nav{display:none}
@media (min-width:1024px){.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}}
.nav-link{
  padding:8px 14px;border-radius:8px;font-size:15px;font-weight:500;color:var(--muted);
  transition:color .2s ease,background-color .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.active{color:var(--brand);background:var(--brand-soft);font-weight:700}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{display:none}
@media (min-width:1024px){
  .search-box{
    display:flex;align-items:center;gap:8px;height:40px;min-width:250px;
    padding:0 8px 0 14px;border:1px solid var(--line);border-radius:var(--r-pill);
    background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
  }
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,77,255,.12)}
.search-box i{color:var(--muted);font-size:13px}
.search-box input{
  border:0;outline:none;background:transparent;font-size:14px;width:100%;color:var(--text);
}
.search-box input::placeholder{color:#9AA5B8}
.kbd{
  font-size:11px;font-weight:700;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;background:#F9FAFD;line-height:1.4;
}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--text);
}
.nav-toggle:hover{border-color:rgba(27,77,255,.4);color:var(--brand)}
@media (min-width:1024px){.nav-toggle{display:none}}
.drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0 22px}
.drawer.open{display:block}
@media (min-width:1024px){.drawer{display:none !important}}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav .nav-link{padding:12px 14px;font-size:16px}
.drawer-cta{margin-top:14px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .22s ease-out,background-color .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out,color .22s ease-out;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(27,77,255,.24)}
.btn-primary:hover{background:#1640D8;transform:translateY(-2px);box-shadow:0 12px 26px rgba(27,77,255,.3)}
.btn-secondary{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-secondary:hover{border-color:rgba(27,77,255,.4);transform:translateY(-2px);box-shadow:var(--shadow-card)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,90,31,.28)}
.btn-accent:hover{background:#E84B12;transform:translateY(-2px)}
.btn-sm{height:34px;padding:0 14px;font-size:14px}
.btn-lg{height:48px;padding:0 26px;font-size:16px;border-radius:var(--r-pill)}
.btn-block{width:100%}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#EEF3FF 0%,var(--bg) 74%);
  padding:36px 0 48px;
}
@media (min-width:1024px){.hero{padding:56px 0 72px}}
.breadcrumb{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);
  overflow-x:auto;white-space:nowrap;padding-bottom:2px;
}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb i{font-size:10px;color:#B7C0D4}
.hero-grid{display:grid;gap:36px;align-items:center;margin-top:26px}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;margin-top:36px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:700;letter-spacing:.4px;
}
.eyebrow i{font-size:11px}
.hero-title{font-size:30px;line-height:1.22;font-weight:800;margin:18px 0 0;letter-spacing:-.2px}
@media (min-width:768px){.hero-title{font-size:38px}}
@media (min-width:1024px){.hero-title{font-size:48px}}
.hero-sub{margin:18px 0 0;font-size:16px;color:var(--muted);max-width:580px}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
.hero-points{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--muted)}
.hero-points span{display:inline-flex;align-items:center;gap:8px}
.hero-points i{color:var(--pos);font-size:13px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;
  box-shadow:0 24px 48px rgba(12,21,38,.14);
}
.hero-float{
  position:absolute;left:12px;bottom:20px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:14px 18px;box-shadow:var(--shadow-card);min-width:196px;
}
@media (min-width:768px){.hero-float{left:-14px}}
.hero-float b{display:block;font-size:13px;color:var(--muted);font-weight:600}
.hero-float span{display:block;margin-top:6px;font-size:18px;font-weight:800;font-variant-numeric:tabular-nums}
.hero-float em{
  display:inline-block;margin-top:8px;font-style:normal;font-size:12px;font-weight:700;
  color:var(--pos);background:rgba(15,169,123,.1);border-radius:8px;padding:2px 8px;
}

/* ---------- section heading ---------- */
.section-head{max-width:760px}
.section-eyebrow{font-size:13px;font-weight:800;letter-spacing:1.2px;color:var(--brand)}
.section-title{font-size:24px;font-weight:800;margin:12px 0 0;line-height:1.28;letter-spacing:-.2px}
@media (min-width:1024px){.section-title{font-size:34px}}
.section-desc{margin:14px 0 0;color:var(--muted);font-size:16px}

/* ---------- compare ---------- */
.compare-grid{display:grid;gap:20px;margin-top:36px}
@media (min-width:1024px){.compare-grid{grid-template-columns:1fr 1fr;gap:28px}}
.compare-col{border-radius:var(--r-card);padding:26px;border:1px solid var(--line)}
@media (min-width:1024px){.compare-col{padding:30px}}
.compare-col.before{background:#EFF2F8}
.compare-col.after{background:var(--brand-soft);border-color:rgba(27,77,255,.22)}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.compare-head h3{font-size:19px;font-weight:800;margin:0}
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:8px;font-size:12px;font-weight:700}
.tag-muted{background:#DDE3EF;color:#4A5875}
.tag-brand{background:var(--brand-soft-2);color:var(--brand)}
.tag-accent{background:var(--accent-soft);color:var(--accent)}
.compare-list{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:12px}
.compare-list li{display:flex;gap:10px;font-size:15px;color:#22304A;line-height:1.72}
.compare-list i{margin-top:6px;font-size:12px;flex:none}
.before .compare-list i{color:#8894AC}
.after .compare-list i{color:var(--brand)}
.meter{margin-top:24px}
.meter-top{
  display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  font-size:13px;font-weight:700;color:var(--muted);margin-bottom:8px;font-variant-numeric:tabular-nums;
}
.meter-top b{font-size:16px;font-weight:800;color:var(--text)}
.after .meter-top b{color:var(--brand)}
.meter-bar{height:8px;border-radius:var(--r-pill);background:rgba(12,21,38,.09);overflow:hidden}
.meter-bar i{display:block;height:100%;border-radius:var(--r-pill);transition:width .6s ease-out}
.meter-bar.m28 i{width:28%;background:#A9B4CA}
.meter-bar.m94 i{width:94%;background:linear-gradient(90deg,var(--brand) 0%,var(--accent) 100%)}

/* ---------- prose ---------- */
.prose-wrap{max-width:900px}
.prose h2{
  position:relative;font-size:23px;font-weight:800;margin:36px 0 16px;padding-left:16px;line-height:1.32;
}
.prose h2:first-child{margin-top:0}
.prose h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:var(--brand);
}
.prose h3{font-size:18px;font-weight:700;margin:26px 0 10px;color:var(--brand-deep)}
.prose p{margin:0 0 16px;color:#25324A;line-height:1.85}
.step-list{counter-reset:step;list-style:none;margin:0 0 16px;padding:0;display:grid;gap:14px}
.step-list li{position:relative;padding-left:46px;font-size:15.5px;color:#25324A;line-height:1.8}
.step-list li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:3px;width:30px;height:30px;border-radius:9px;
  background:var(--brand-soft);color:var(--brand);font-weight:800;font-size:13px;
  display:grid;place-items:center;font-variant-numeric:tabular-nums;
}
.step-list strong{color:var(--text)}

/* ---------- scene cards ---------- */
.scene-grid{display:grid;gap:24px;margin-top:34px}
@media (min-width:768px){.scene-grid{grid-template-columns:repeat(3,1fr)}}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(27,77,255,.3)}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#E8EEFB}
.scene-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.scene-body h3{font-size:18px;font-weight:800;margin:12px 0 0}
.scene-body p{margin:10px 0 0;font-size:15px;color:var(--muted);line-height:1.75}
.scene-link{
  margin-top:18px;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--brand);
}
.scene-link i{transition:transform .2s ease-out}
.scene-card:hover .scene-link i{transform:translateX(4px)}

/* ---------- metrics band ---------- */
.metrics-band{background:var(--brand-deep);color:#fff;padding:44px 0}
@media (min-width:1024px){.metrics-band{padding:56px 0}}
.metrics-grid{display:grid;gap:24px;grid-template-columns:repeat(2,minmax(0,1fr))}
@media (min-width:1024px){.metrics-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:32px}}
.metric{border-left:2px solid rgba(255,255,255,.18);padding-left:18px}
.metric dt,.metric .metric-k{font-size:13px;font-weight:600;color:rgba(255,255,255,.62)}
.metric .metric-v{
  margin:8px 0 0;font-size:19px;font-weight:800;letter-spacing:.2px;font-variant-numeric:tabular-nums;
}
@media (min-width:1024px){.metric .metric-v{font-size:21px}}
.metric .metric-note{margin:8px 0 0;font-size:13px;color:rgba(255,255,255,.55);line-height:1.6}

/* ---------- faq ---------- */
.faq-grid{display:grid;gap:14px;margin-top:32px}
@media (min-width:1024px){.faq-grid{grid-template-columns:1fr 1fr;gap:16px 24px;align-items:start}}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.faq-item:hover{border-color:rgba(27,77,255,.28)}
.faq-item.active{border-color:rgba(27,77,255,.36);box-shadow:var(--shadow-card)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:18px 20px;min-height:44px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:700;color:var(--text);line-height:1.6;
}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.faq-q i{color:var(--brand);font-size:14px;margin-top:5px;flex:none;transition:transform .25s ease-out}
.faq-item.active .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-a p{margin:0;padding:0 20px 20px;font-size:15px;color:#3A4761;line-height:1.8}
.faq-item.active .faq-a{max-height:320px}

/* ---------- cta ---------- */
.cta-card{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  border-radius:24px;padding:30px;color:#fff;display:grid;gap:30px;
}
@media (min-width:1024px){.cta-card{grid-template-columns:1fr 1fr;padding:48px;gap:48px;align-items:center}}
.cta-card h2{font-size:24px;font-weight:800;margin:14px 0 0;line-height:1.3}
@media (min-width:1024px){.cta-card h2{font-size:32px}}
.cta-card p{margin:14px 0 0;font-size:15.5px;color:rgba(255,255,255,.78);line-height:1.8}
.cta-list{margin:22px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.cta-list li{display:flex;gap:10px;font-size:14.5px;color:rgba(255,255,255,.86)}
.cta-list i{color:#8FE3C6;margin-top:6px;font-size:12px}
.form-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:18px;padding:22px}
@media (min-width:1024px){.form-card{padding:26px}}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:700;color:rgba(255,255,255,.9);margin-bottom:8px}
.req{color:#FFB08A;margin-left:2px}
.field input,.field textarea{
  width:100%;border-radius:12px;border:1px solid transparent;background:#fff;color:var(--text);
  padding:0 14px;height:44px;outline:none;transition:box-shadow .2s ease-out;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#9AA5B8}
.field input:focus,.field textarea:focus{box-shadow:0 0 0 3px rgba(255,255,255,.42)}
.field .err{min-height:18px;font-size:12.5px;color:#FFC9A8;margin-top:6px}
.form-note{font-size:12.5px;color:rgba(255,255,255,.66);margin-top:12px;line-height:1.7}
.form-sent{
  display:none;margin-top:14px;font-size:13.5px;font-weight:700;color:#B7F5DD;
  background:rgba(15,169,123,.22);border:1px solid rgba(15,169,123,.5);border-radius:10px;padding:10px 14px;
}
.form-sent.show{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);padding:56px 0 28px}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px}}
.footer-brand p{margin:16px 0 0;font-size:14px;line-height:1.8;color:rgba(255,255,255,.64);max-width:340px}
.brand-light .brand-text{color:#fff}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin:0 0 16px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s ease-out}
.footer-col a:hover{color:#fff}
.contact-line{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.7)}
.contact-line i{color:rgba(255,255,255,.5);font-size:13px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);line-height:1.7;
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  html{scroll-behavior:auto}
}