/* roulang page: index */
:root{
  --brand-600:#1B5FD9;
  --brand-700:#1449A8;
  --brand-500:#3B7BEA;
  --brand-50:#EDF3FE;
  --accent-500:#FF7A2F;
  --accent-50:#FFF2EA;
  --ok:#12B886;
  --ok-deep:#0E9A70;
  --warn:#F2B01E;
  --err:#E5484D;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --alt:#FBFCFE;
  --footer-bg:#0F1B33;
  --text:#1D2433;
  --text-2:#5B6578;
  --text-3:#8A94A6;
  --line:#E5EAF3;
  --input-line:#D7DEEB;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(16,32,64,.06),0 2px 8px rgba(16,32,64,.06);
  --shadow-2:0 12px 32px rgba(27,95,217,.14);
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:3px solid rgba(27,95,217,.35);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sec{padding:88px 0}
.sec--alt{background:var(--alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head h2{font-size:28px;line-height:1.38}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--brand-600);
  background:var(--brand-50);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.sec-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.link-more{color:var(--brand-600);font-weight:500;font-size:15px;white-space:nowrap;transition:color .2s ease}
.link-more:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;white-space:nowrap;
  border:1px solid transparent;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--brand-600);color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-50);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:500;white-space:nowrap}
.badge-ok{background:rgba(18,184,134,.12);color:var(--ok-deep)}
.badge-run{background:var(--accent-50);color:#D9600F}
.badge-idle{background:#EEF2F8;color:var(--text-3)}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--brand-50);color:var(--brand-600);font-size:12px;font-weight:500}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .22s ease,box-shadow .22s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.num{font-variant-numeric:tabular-nums}

/* header */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .22s ease,border-color .22s ease,background-color .22s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 4px 18px rgba(16,32,64,.07)}
.header-inner{display:flex;align-items:center;gap:24px;height:78px;transition:height .22s ease}
.site-header.is-scrolled .header-inner{height:66px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--brand-500),var(--brand-700));position:relative;flex-shrink:0}
.logo-mark::after{content:"";position:absolute;inset:8px;border-radius:3px;background:rgba(255,255,255,.92)}
.logo-text{font-size:17px;font-weight:600;color:var(--text);white-space:nowrap}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex-shrink:0;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;border:1px solid var(--line);background:#fff;
  color:var(--text-2);font-size:14px;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.chip:hover{background:var(--brand-50);color:var(--brand-600);border-color:#C9DDFB}
.chip.is-active{background:var(--brand-600);color:#fff;border-color:var(--brand-600);box-shadow:inset 0 2px 6px rgba(9,40,96,.28)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;transition:background-color .2s ease}
.nav-toggle:hover{background:var(--brand-50)}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--text);position:relative;border-radius:2px}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:8px 0 24px}
.mobile-panel.is-open{display:block}
.mobile-panel a{display:block;padding:13px 0;font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line);transition:color .2s ease}
.mobile-panel a:hover{color:var(--brand-600)}
.mobile-panel .btn{width:100%;margin-top:18px;border-bottom:0;color:#fff;padding:0 24px;text-align:center}
.mobile-panel .btn:hover{color:#fff}

/* hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#F5F7FB 0%,#FFFFFF 100%);padding:56px 0 88px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(27,95,217,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(27,95,217,.05) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 72%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 72%);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center}
.hero h1{font-size:40px;line-height:1.28}
.hero-sub{margin-top:20px;max-width:580px;font-size:17px;line-height:1.85;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--brand-500);flex-shrink:0}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:0 24px 48px rgba(16,32,64,.12)}
.float-card{
  position:absolute;right:-12px;bottom:28px;min-width:216px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;box-shadow:var(--shadow-2);
}
.float-row{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:var(--text-2)}
.float-row + .float-row{margin-top:10px;padding-top:10px;border-top:1px dashed var(--line)}
.float-row strong{font-size:20px;font-weight:600;color:var(--text)}

/* category strip */
.cat-strip{background:#fff;padding:56px 0 0}
.chip-row{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none;-ms-overflow-style:none}
.chip-row::-webkit-scrollbar{display:none}
.chip-lg{height:46px;padding:0 24px;font-size:15px;border-radius:999px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding-top:0}
.step::before{content:"";position:absolute;left:44px;right:-24px;top:15px;height:2px;background:var(--line);border-radius:2px}
.step:last-child::before{display:none}
.step.is-done::before{background:var(--brand-500)}
.step-num{
  position:relative;z-index:1;width:32px;height:32px;border-radius:999px;
  border:1px solid var(--brand-600);background:#fff;color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:600;font-variant-numeric:tabular-nums;
}
.step.is-done .step-num{background:var(--brand-600);color:#fff}
.step h3{margin-top:18px;font-size:17px}
.step p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--text-2)}

/* preview */
.preview-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:stretch}
.preview-side{display:grid;gap:24px;grid-template-rows:1fr 1fr}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card--tall{display:flex;flex-direction:column}
.card--tall .card-media{flex:1;min-height:230px}
.card--tall .card-media img{height:100%;aspect-ratio:auto;object-fit:cover;min-height:230px}
.card-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px}
.card-body p{font-size:14px;line-height:1.75;color:var(--text-2)}
.card-foot{margin-top:auto;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.card--side{display:grid;grid-template-columns:150px 1fr;align-items:stretch}
.card--side .card-media{height:100%}
.card--side .card-media img{height:100%;width:100%;aspect-ratio:auto;object-fit:cover}
.card--side .card-body{padding:20px}
.card--side .card-body h3{font-size:16px}
.card--side .card-body p{font-size:13.5px}

/* progress / checklist */
.check-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:36px;box-shadow:var(--shadow-1)}
.progress-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:14px}
.progress-head span{font-size:15px;color:var(--text-2)}
.progress-head strong{font-size:28px;font-weight:600;color:var(--brand-600);font-variant-numeric:tabular-nums;line-height:1}
.progress{height:10px;border-radius:999px;background:#EEF2F8;overflow:hidden}
.progress i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-600),var(--accent-500));transition:width .6s ease}
.task-list{margin-top:28px;display:grid;gap:12px}
.task{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;border:1px solid var(--line);border-radius:var(--r-img);background:var(--alt);transition:border-color .2s ease,background-color .2s ease}
.task:hover{border-color:#C9DDFB;background:#fff}
.task-title{display:flex;align-items:center;gap:12px;font-size:15px}
.task-dot{width:8px;height:8px;border-radius:999px;background:var(--brand-500);flex-shrink:0}
.task-note{margin-top:20px;font-size:13.5px;color:var(--text-3)}

/* posts */
.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.post-card{
  display:grid;grid-template-columns:200px 1fr;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D3E2F8}
.post-thumb{background:#EEF2F8}
.post-thumb img{width:100%;height:100%;object-fit:cover;min-height:168px}
.post-body{padding:20px 22px;display:flex;flex-direction:column;gap:10px;min-width:0}
.post-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
.post-card:hover .post-body h3{color:var(--brand-600)}
.post-body p{font-size:14px;line-height:1.72;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3)}
.empty-state{
  grid-column:1 / -1;text-align:center;padding:56px 24px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-md);
}
.empty-icon{
  width:52px;height:52px;border-radius:16px;background:var(--brand-50);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:24px;font-weight:600;
}
.empty-state p{color:var(--text-2);font-size:15px}
.empty-state .link-more{display:inline-block;margin-top:12px}

/* faq */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease}
.faq-item:hover{border-color:#D3E2F8}
.faq-item.is-open{box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:500;line-height:1.6;position:relative;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--brand-600);border-radius:0 3px 3px 0;opacity:0;transition:opacity .2s ease;
}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-icon{flex-shrink:0;width:22px;height:22px;position:relative;color:var(--brand-600);transition:transform .24s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{left:0;right:0;top:10px;height:2px}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* cta band */
.cta-band{
  background:linear-gradient(135deg,#EDF3FE 0%,#FFFFFF 100%);
  border:1px solid #D9E6FA;border-radius:var(--r-lg);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;line-height:1.4}
.cta-band p{margin-top:10px;max-width:600px;font-size:15px;line-height:1.8;color:var(--text-2)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* footer */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:16px;max-width:320px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6)}
.footer-col h3{font-size:14px;font-weight:500;color:rgba(255,255,255,.5);margin-bottom:16px}
.footer-col li + li{margin-top:10px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* to top */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:var(--r-img);
  background:var(--brand-600);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);z-index:70;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,background-color .24s ease,visibility .24s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-700)}

/* responsive */
@media (max-width:1279px){
  .hero h1{font-size:36px}
}
@media (max-width:1024px){
  .nav-chips{display:none}
  .header-actions .btn{display:none}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-media{max-width:640px}
  .hero-sub{max-width:none}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .step::before{display:none}
  .preview-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sec{padding:64px 0}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .sec{padding:56px 0}
  .hero{padding:32px 0 56px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .sec-head h2{font-size:22px}
  .sec-head--row{flex-direction:column;align-items:flex-start;gap:12px}
  .float-card{right:8px;bottom:12px;min-width:186px;padding:14px 16px}
  .float-row strong{font-size:18px}
  .post-card{grid-template-columns:1fr}
  .post-thumb img{min-height:0;aspect-ratio:16/9;height:auto}
  .check-card{padding:24px}
  .cta-band{padding:28px 22px}
  .cta-band h2{font-size:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .task{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:520px){
  .hero h1{font-size:26px}
  .hero-actions .btn{width:100%}
  .hero-points{flex-direction:column;gap:10px}
  .card--side{grid-template-columns:1fr}
  .card--side .card-media img{aspect-ratio:16/9;height:auto}
  .card-body{padding:16px}
  .card--side .card-body{padding:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
  .steps{grid-template-columns:1fr}
  .to-top{right:16px;bottom:16px}
}

/* roulang page: article */
:root{
  --brand-600:#1B5FD9;
  --brand-700:#1449A8;
  --brand-500:#3B7BEA;
  --brand-50:#EDF3FE;
  --accent-500:#FF7A2F;
  --accent-50:#FFF2EA;
  --ok:#12B886;
  --warn:#F2B01E;
  --err:#E5484D;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --alt:#FBFCFE;
  --footer-bg:#0F1B33;
  --t1:#1D2433;
  --t2:#5B6578;
  --t3:#8A94A6;
  --inv:#FFFFFF;
  --line:#E5EAF3;
  --input:#D7DEEB;
  --r-chip:999px;
  --r-btn:10px;
  --r-img:12px;
  --r-card:16px;
  --r-wrap:24px;
  --sh1:0 1px 2px rgba(16,32,64,.06),0 2px 8px rgba(16,32,64,.06);
  --sh2:0 12px 32px rgba(27,95,217,.14);
  --s4:4px;--s8:8px;--s12:12px;--s16:16px;--s24:24px;--s32:32px;--s48:48px;--s64:64px;--s88:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--t1);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible{outline:3px solid rgba(27,95,217,.25);outline-offset:2px;border-radius:6px}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--t1)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  font-size:15px;font-weight:500;line-height:1;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-600);color:var(--inv);box-shadow:0 2px 6px rgba(27,95,217,.22)}
.btn-primary:hover{background:var(--brand-700);color:var(--inv);text-decoration:none;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:transparent;color:var(--brand-600);border-color:var(--brand-600)}
.btn-secondary:hover{background:var(--brand-50);color:var(--brand-700);text-decoration:none}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.link-text{color:var(--brand-600);font-size:14px;font-weight:500}
.link-text:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  font-size:12px;line-height:1;color:var(--brand-600);
  background:var(--brand-50);border-radius:var(--r-chip);
}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;font-size:12px;line-height:1;border-radius:var(--r-chip)}
.badge-doing{background:var(--accent-50);color:var(--accent-500)}
.badge-done{background:rgba(18,184,134,.12);color:var(--ok)}
.badge-idle{background:#EEF2F8;color:var(--t2)}

/* ---------- 头部 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:transparent;
  transition:background-color .22s ease,box-shadow .22s ease;
}
.site-header.is-scrolled,.site-header.is-open{background:#fff;box-shadow:var(--sh1)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:76px;transition:min-height .22s ease}
.site-header.is-scrolled .header-inner{min-height:66px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--t1)}
.logo:hover{text-decoration:none}
.logo-mark{
  width:28px;height:28px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;left:8px;top:8px;width:12px;height:12px;
  border:2px solid #fff;border-radius:4px;
}
.logo-text{font-size:18px;font-weight:600;letter-spacing:0}
.nav-chips{
  display:flex;align-items:center;gap:8px;
  margin-left:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;
  font-size:14px;color:var(--t2);white-space:nowrap;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-chip);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:var(--brand-50);color:var(--brand-600);text-decoration:none}
.chip.is-active{
  background:var(--brand-600);color:var(--inv);border-color:var(--brand-600);
  box-shadow:inset 0 1px 3px rgba(0,0,0,.12);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--t1);position:relative;border-radius:2px}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--t1);border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.mobile-nav{max-height:0;overflow:hidden;transition:max-height .28s ease;border-top:1px solid transparent;background:#fff}
.site-header.is-open .mobile-nav{max-height:520px;border-top-color:var(--line)}
.mobile-nav a{display:block;padding:14px 24px;color:var(--t1);font-size:15px;border-bottom:1px solid var(--line)}
.mobile-nav a:hover{background:var(--alt);text-decoration:none}
.mobile-nav a.is-active{color:var(--brand-600);font-weight:600}
.mobile-nav .mobile-cta{padding:16px 24px 20px;border-bottom:0}

/* ---------- 文章头部 ---------- */
.article-head{
  position:relative;
  padding:132px 0 44px;
  background:linear-gradient(180deg,#F5F7FB 0%,#FFFFFF 100%);
  overflow:hidden;
}
.article-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(27,95,217,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(27,95,217,.04) 1px,transparent 1px);
  background-size:48px 48px;
}
.article-head .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--t3);margin-bottom:18px}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:var(--t3)}
.breadcrumb .current{
  color:var(--t3);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-title{
  font-size:40px;line-height:1.25;font-weight:600;
  max-width:880px;color:var(--t1);
  overflow-wrap:anywhere;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:20px;font-size:13px;color:var(--t3)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--t3);flex:none}

/* ---------- 正文 ---------- */
.article-section{padding:0 0 88px}
.article-card{
  max-width:760px;margin:0 auto;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-wrap);
  box-shadow:var(--sh1);
  padding:48px 48px 28px;
}
.article-body{font-size:17px;line-height:1.9;color:var(--t1);overflow-wrap:anywhere}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;padding-left:12px;margin:1.9em 0 .8em;
  font-size:24px;line-height:1.5;font-weight:600;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;width:3px;height:1em;
  background:var(--brand-600);border-radius:2px;
}
.article-body h3{font-size:19px;line-height:1.55;margin:1.5em 0 .6em;font-weight:600}
.article-body h4{font-size:17px;margin:1.2em 0 .5em}
.article-body blockquote{
  margin:1.3em 0;padding:16px 20px;color:var(--t2);
  background:var(--brand-50);border-left:3px solid var(--brand-600);
  border-radius:0 var(--r-btn) var(--r-btn) 0;
}
.article-body ul{margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:18px;margin:.45em 0}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--brand-500);
}
.article-body ol{margin:0 0 1.2em;padding-left:1.4em;list-style:decimal}
.article-body ol li{margin:.45em 0}
.article-body img{border-radius:var(--r-img);margin:1.4em 0;width:100%;height:auto}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body table{width:100%;border-collapse:collapse;margin:1.3em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:var(--alt);font-weight:600}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--t3);margin-top:8px;text-align:center}
.article-body code{
  background:#EEF2F8;border-radius:6px;padding:2px 6px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-foot{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;margin-top:32px;padding-top:20px;border-top:1px solid var(--line);
}
.article-foot .foot-note{font-size:13px;color:var(--t3)}

/* ---------- 空态 / 提示 ---------- */
.empty-state{
  text-align:center;padding:48px 24px;background:var(--alt);
  border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;
  background:var(--brand-50);display:flex;align-items:center;justify-content:center;
}
.empty-icon::after{content:"";width:22px;height:22px;border:2px solid var(--brand-500);border-radius:6px}
.empty-title{font-size:18px;font-weight:600;margin-bottom:8px}
.empty-state p{color:var(--t2);font-size:15px;margin-bottom:20px}

/* ---------- 提示条 ---------- */
.notice-band{
  max-width:760px;margin:0 auto 24px;
  display:flex;align-items:center;gap:14px;
  background:var(--accent-50);border-left:3px solid var(--accent-500);
  border-radius:0 var(--r-card) var(--r-card) 0;
  padding:16px 20px;
}
.notice-band strong{color:#B14A0F;font-size:14px;font-weight:600;flex:none}
.notice-band span{font-size:14px;color:var(--t2)}

/* ---------- 相关推荐 ---------- */
.rel-section{padding:0 0 88px}
.rel-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-kicker{font-size:13px;color:var(--brand-600);font-weight:500;margin-bottom:8px;display:block}
.rel-head h2{font-size:28px;line-height:1.35}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);text-decoration:none}
.rel-cover{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EEF2F8}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;line-height:1.5;font-weight:600;color:var(--t1);transition:color .2s ease}
.rel-card:hover .rel-body h3{color:var(--brand-600)}
.rel-body p{font-size:14px;line-height:1.7;color:var(--t2)}
.rel-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--t3)}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 88px}
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--brand-50);border:1px solid #DCE7FB;border-radius:var(--r-wrap);
  padding:40px;
}
.cta-band h2{font-size:24px;line-height:1.4;margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--t2);max-width:560px}
.cta-actions{display:flex;gap:12px;flex:none;flex-wrap:wrap}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:32px;z-index:70;
  width:46px;height:46px;border-radius:14px;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh2);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-50)}
.to-top::after{
  content:"";width:10px;height:10px;border-left:2px solid var(--brand-600);border-top:2px solid var(--brand-600);
  transform:translateY(2px) rotate(45deg);
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{color:#fff}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:340px}
.footer-col h3{font-size:14px;font-weight:500;color:rgba(255,255,255,.7);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px;font-size:14px}
.footer-col ul li a,.footer-col ul li span{color:rgba(255,255,255,.72);font-size:14px}
.footer-col ul li a:hover{color:#fff;text-decoration:none}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-chips{overflow-x:auto;padding-bottom:4px}
  .article-head{padding:120px 0 40px}
  .article-title{font-size:32px}
  .article-card{padding:40px 32px 24px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .rel-section,.article-section,.cta-section{padding-bottom:64px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
}
@media (max-width:767px){
  .nav-chips{display:none}
  .menu-toggle{display:flex}
  .header-cta{display:none}
  .header-inner{min-height:64px;gap:12px}
  .article-head{padding:104px 0 32px}
  .article-title{font-size:28px;line-height:1.35}
  .breadcrumb .current{max-width:180px}
  .article-card{padding:28px 20px 18px;border-radius:var(--r-card)}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .rel-grid{grid-template-columns:1fr}
  .rel-section,.article-section,.cta-section{padding-bottom:56px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .to-top{right:16px;bottom:20px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .article-title{font-size:26px}
  .notice-band{flex-direction:column;align-items:flex-start;gap:6px}
  .article-foot{flex-direction:column;align-items:flex-start;gap:10px}
}

/* roulang page: category1 */
:root{
  --brand-600:#1B5FD9;
  --brand-700:#1449A8;
  --brand-500:#3B7BEA;
  --brand-50:#EDF3FE;
  --accent-500:#FF7A2F;
  --accent-50:#FFF2EA;
  --ok:#12B886;
  --warn:#F2B01E;
  --err:#E5484D;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --alt:#FBFCFE;
  --footer-bg:#0F1B33;
  --t1:#1D2433;
  --t2:#5B6578;
  --t3:#8A94A6;
  --line:#E5EAF3;
  --input:#D7DEEB;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:24px;
  --r-img:12px;
  --sh1:0 1px 2px rgba(16,32,64,.06),0 2px 8px rgba(16,32,64,.06);
  --sh2:0 12px 32px rgba(27,95,217,.14);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:88px;
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--t1);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand-700);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--t1);letter-spacing:0;}
p{margin:0;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:3px solid rgba(27,95,217,.28);outline-offset:2px;border-radius:6px;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,background-color .22s ease;
}
.site-header.is-scrolled{
  box-shadow:var(--sh1);
  background:#fff;
}
.header-inner{
  display:flex;
  align-items:center;
  gap:var(--sp-5);
  min-height:72px;
  transition:min-height .22s ease;
}
.site-header.is-scrolled .header-inner{min-height:64px;}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--t1);
}
.logo:hover{color:var(--t1);}
.logo-mark{
  width:30px;height:30px;flex-shrink:0;
  border-radius:9px;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
  position:relative;
  box-shadow:0 4px 12px rgba(27,95,217,.28);
}
.logo-mark::after{
  content:"";
  position:absolute;inset:9px;
  border-radius:3px;
  background:#fff;
  opacity:.92;
}
.logo-text{
  font-size:19px;
  font-weight:600;
  white-space:nowrap;
}
.nav-chips{
  display:flex;
  align-items:center;
  gap:var(--sp-2);
  flex:1;
  min-width:0;
}
.chip{
  display:inline-flex;
  align-items:center;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--t2);
  font-size:14px;
  line-height:1.4;
  white-space:nowrap;
  transition:all .2s ease;
}
.chip:hover{
  background:var(--brand-50);
  color:var(--brand-700);
  border-color:#CFE0FB;
}
.chip.is-active{
  background:var(--brand-600);
  border-color:var(--brand-600);
  color:#fff;
  box-shadow:inset 0 1px 2px rgba(9,33,80,.22),0 6px 16px rgba(27,95,217,.24);
}
.chip.is-active:hover{background:var(--brand-700);color:#fff;}
.header-actions{
  display:flex;
  align-items:center;
  gap:var(--sp-3);
  flex-shrink:0;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border-radius:var(--r-btn);
  font-weight:500;
  font-size:15px;
  line-height:1.4;
  border:1px solid transparent;
  transition:all .2s ease;
  text-align:center;
}
.btn-primary{
  background:var(--brand-600);
  color:#fff;
  box-shadow:0 6px 16px rgba(27,95,217,.22);
}
.btn-primary:hover{
  background:var(--brand-700);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 10px 22px rgba(27,95,217,.28);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border-color:var(--brand-600);
  color:var(--brand-600);
}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);border-color:var(--brand-700);}
.btn-light{
  background:#fff;
  border-color:var(--line);
  color:var(--t1);
}
.btn-light:hover{border-color:var(--brand-500);color:var(--brand-700);}
.btn-block{width:100%;}
.btn:disabled{opacity:.55;cursor:not-allowed;}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#fff;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.menu-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--t1);
  transition:transform .22s ease,opacity .22s ease;
}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.is-open span:nth-child(2){opacity:0;}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:var(--sp-4) 0 var(--sp-5);
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .chip{
  width:100%;
  justify-content:flex-start;
  border-radius:var(--r-btn);
  padding:12px 16px;
}
.mobile-drawer ul{display:flex;flex-direction:column;gap:var(--sp-2);margin-bottom:var(--sp-4);}
.mobile-drawer .btn{width:100%;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(100deg,rgba(245,247,251,.96) 0%,rgba(245,247,251,.86) 52%,rgba(237,243,254,.72) 100%),
    url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(27,95,217,.05) 0 1px,transparent 1px 22px);
  opacity:.7;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;padding-top:var(--sp-7);padding-bottom:var(--sp-8);}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t3);
  margin-bottom:var(--sp-5);
}
.breadcrumb a{color:var(--t2);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:var(--t3);}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:#fff;
  border:1px solid #D7E5FB;
  color:var(--brand-700);
  font-size:13px;
  margin-bottom:var(--sp-4);
}
.hero-tag .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--ok);
  box-shadow:0 0 0 4px rgba(18,184,134,.16);
}
.page-hero h1{
  font-size:40px;
  line-height:1.32;
  max-width:840px;
  margin-bottom:var(--sp-4);
}
.hero-sub{
  font-size:17px;
  line-height:1.85;
  color:var(--t2);
  max-width:760px;
  margin-bottom:var(--sp-6);
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:var(--sp-3);
}
.meta-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 16px;
  border-radius:var(--r-btn);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--sh1);
  font-size:14px;
  color:var(--t2);
}
.meta-pill strong{color:var(--brand-700);font-weight:600;}

/* ---------- sections ---------- */
.section{padding:var(--sp-9) 0;}
.section.alt{background:var(--alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:var(--sp-7);}
.section-head h2{font-size:28px;line-height:1.45;margin-bottom:var(--sp-3);}
.section-head p{color:var(--t2);}
.eyebrow{
  display:inline-block;
  font-size:13px;
  color:var(--brand-600);
  background:var(--brand-50);
  border-radius:999px;
  padding:5px 12px;
  margin-bottom:var(--sp-3);
}

/* two column layout: 8 / 4 */
.layout-split{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:var(--sp-6);
  align-items:start;
}
.content-stack{display:flex;flex-direction:column;gap:var(--sp-6);}
.panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh1);
  padding:var(--sp-6);
  transition:box-shadow .22s ease,transform .22s ease;
}
.panel h2{font-size:23px;line-height:1.5;margin-bottom:var(--sp-3);}
.panel h3{font-size:18px;line-height:1.55;margin-bottom:var(--sp-3);}
.panel > p{color:var(--t2);}
.panel p + p{margin-top:var(--sp-3);}
.panel + .panel{margin-top:0;}

.number-list{display:flex;flex-direction:column;gap:var(--sp-3);margin-top:var(--sp-5);}
.number-list li{
  display:flex;
  gap:var(--sp-4);
  padding:var(--sp-4);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:#fff;
  transition:all .22s ease;
}
.number-list li:hover{
  border-color:#CFE0FB;
  box-shadow:var(--sh2);
  transform:translateY(-3px);
}
.n-idx{
  flex-shrink:0;
  width:34px;height:34px;
  border-radius:10px;
  background:var(--brand-50);
  color:var(--brand-700);
  font-size:14px;
  font-weight:600;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.number-list h3{font-size:16px;margin-bottom:4px;}
.number-list p{font-size:14px;color:var(--t2);line-height:1.7;}

.check-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:var(--sp-4);
  margin-top:var(--sp-5);
}
.check-item{
  display:flex;
  gap:var(--sp-3);
  padding:var(--sp-4);
  border-radius:var(--r-card);
  background:var(--brand-50);
  border:1px solid #DCE8FC;
}
.check-item .ico{
  flex-shrink:0;
  width:26px;height:26px;
  border-radius:8px;
  background:#fff;
  color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;
  font-weight:600;
}
.check-item strong{display:block;font-size:15px;margin-bottom:2px;}
.check-item span{font-size:13.5px;color:var(--t2);line-height:1.65;}

.steps{display:flex;flex-direction:column;gap:0;margin-top:var(--sp-5);}
.step{
  display:grid;
  grid-template-columns:34px 1fr;
  gap:var(--sp-4);
  padding-bottom:var(--sp-5);
  position:relative;
}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";
  position:absolute;
  left:16px;top:34px;bottom:0;
  width:2px;
  background:var(--line);
}
.step:last-child::before{display:none;}
.step-dot{
  width:34px;height:34px;
  border-radius:50%;
  border:2px solid var(--brand-500);
  background:#fff;
  color:var(--brand-700);
  font-size:13px;
  font-weight:600;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
  position:relative;z-index:1;
}
.step.is-done .step-dot{background:var(--brand-600);border-color:var(--brand-600);color:#fff;}
.step-body h3{font-size:16px;margin-bottom:4px;}
.step-body p{font-size:14px;color:var(--t2);}
.step-body .badge{margin-top:8px;}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:999px;
  font-size:12px;
  line-height:1.6;
  white-space:nowrap;
}
.badge-doing{background:var(--accent-50);color:#C1531A;}
.badge-done{background:rgba(18,184,134,.12);color:#0B7F5C;}
.badge-todo{background:#EEF2F8;color:var(--t2);}

.tip-list{display:flex;flex-direction:column;gap:var(--sp-3);margin-top:var(--sp-4);}
.tip-list li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  color:var(--t2);
  line-height:1.75;
}
.tip-list li::before{
  content:"";
  position:absolute;
  left:2px;top:11px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--brand-500);
}
.note{
  margin-top:var(--sp-5);
  padding:var(--sp-4) var(--sp-5);
  border-left:3px solid var(--brand-600);
  background:var(--brand-50);
  border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--t2);
  font-size:14.5px;
}

/* sidebar */
.sidebar{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:var(--sp-4);
}
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh1);
  padding:var(--sp-5);
}
.side-card h3{
  font-size:15px;
  margin-bottom:var(--sp-3);
  padding-bottom:var(--sp-3);
  border-bottom:1px solid var(--line);
}
.side-nav{display:flex;flex-direction:column;gap:6px;}
.side-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  padding:10px 12px;
  border-radius:var(--r-btn);
  color:var(--t2);
  font-size:14px;
  transition:all .2s ease;
}
.side-nav a:hover{background:var(--brand-50);color:var(--brand-700);}
.side-nav a.is-current{background:var(--brand-50);color:var(--brand-700);font-weight:500;}
.side-nav a .arrow{color:var(--t3);font-size:13px;}
.side-card p{font-size:14px;color:var(--t2);line-height:1.7;}
.side-card .btn{margin-top:var(--sp-4);}
.side-cta{
  background:linear-gradient(160deg,var(--brand-600),var(--brand-700));
  border-color:transparent;
  color:#fff;
}
.side-cta h3{color:#fff;border-bottom-color:rgba(255,255,255,.22);}
.side-cta p{color:rgba(255,255,255,.86);}
.side-cta .btn-light{background:#fff;border-color:#fff;color:var(--brand-700);}
.side-cta .btn-light:hover{background:var(--brand-50);color:var(--brand-700);}

/* scene cards */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:var(--sp-5);
}
.scene-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:all .22s ease;
}
.scene-card:hover{box-shadow:var(--sh2);transform:translateY(-3px);}
.scene-card .thumb{
  aspect-ratio:16/10;
  width:100%;
  overflow:hidden;
  background:#EEF2F8;
}
.scene-card .thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.scene-card:hover .thumb img{transform:scale(1.04);}
.scene-card .body{
  padding:var(--sp-5);
  display:flex;
  flex-direction:column;
  gap:var(--sp-2);
  flex:1;
}
.scene-card h3{font-size:18px;}
.scene-card p{font-size:14px;color:var(--t2);}
.scene-card .meta{
  margin-top:auto;
  padding-top:var(--sp-3);
  display:flex;
  align-items:center;
  gap:var(--sp-3);
  font-size:13px;
  color:var(--t3);
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border-radius:999px;
  background:var(--brand-50);
  color:var(--brand-700);
  font-size:12px;
  line-height:1.7;
}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:var(--sp-3);}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh1);
  overflow:hidden;
  position:relative;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item[open]{border-color:#CFE0FB;}
.faq-item[open]::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;
  width:3px;
  background:var(--brand-600);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-4);
  padding:var(--sp-5);
  font-size:16px;
  font-weight:500;
  color:var(--t1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{
  flex-shrink:0;
  width:26px;height:26px;
  border-radius:8px;
  background:var(--brand-50);
  color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;
  line-height:1;
  transition:transform .22s ease,background-color .22s ease;
}
.faq-item[open] summary .plus{transform:rotate(45deg);background:var(--brand-600);color:#fff;}
.faq-body{
  padding:0 var(--sp-5) var(--sp-5);
  color:var(--t2);
  font-size:15px;
  line-height:1.8;
}

/* cta band */
.cta-band{
  background:linear-gradient(120deg,var(--brand-50),#fff 70%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:var(--sp-7) 0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-6);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh1);
  padding:var(--sp-6) var(--sp-7);
}
.cta-inner h2{font-size:24px;line-height:1.5;margin-bottom:8px;}
.cta-inner p{color:var(--t2);font-size:15px;}
.cta-actions{display:flex;gap:var(--sp-3);flex-shrink:0;}

/* footer */
.site-footer{
  background:var(--footer-bg);
  color:rgba(255,255,255,.72);
  padding:var(--sp-8) 0 var(--sp-5);
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:var(--sp-6);
  padding-bottom:var(--sp-6);
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .logo{color:#fff;margin-bottom:var(--sp-4);}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
.footer-col h3{
  font-size:14px;
  color:rgba(255,255,255,.7);
  font-weight:600;
  margin-bottom:var(--sp-4);
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-col span{color:rgba(255,255,255,.6);font-size:14px;line-height:1.7;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-4);
  flex-wrap:wrap;
  padding-top:var(--sp-5);
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* back to top */
.to-top{
  position:fixed;
  right:24px;bottom:28px;
  width:46px;height:46px;
  border-radius:14px;
  background:var(--brand-600);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 28px rgba(27,95,217,.32);
  opacity:0;visibility:hidden;
  transform:translateY(12px);
  transition:all .24s ease;
  z-index:70;
  font-size:18px;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-700);color:#fff;}

/* responsive */
@media (max-width:1280px){
  .nav-chips{gap:6px;}
  .chip{padding:8px 13px;font-size:13.5px;}
}
@media (max-width:1024px){
  .nav-chips{display:none;}
  .menu-toggle{display:flex;}
  .header-actions .btn-primary{display:none;}
  .layout-split{grid-template-columns:minmax(0,1fr);}
  .sidebar{position:static;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-hero h1{font-size:34px;}
  .section{padding:var(--sp-8) 0;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--sp-5);}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:28px;line-height:1.4;}
  .hero-sub{font-size:15.5px;}
  .page-hero .container{padding-top:var(--sp-6);padding-bottom:var(--sp-7);}
  .section{padding:56px 0;}
  .section-head h2{font-size:22px;}
  .panel{padding:var(--sp-5);}
  .panel h2{font-size:20px;}
  .check-grid{grid-template-columns:minmax(0,1fr);}
  .scene-grid{grid-template-columns:minmax(0,1fr);}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:var(--sp-5);}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .cta-inner h2{font-size:20px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:480px){
  .page-hero h1{font-size:26px;}
  .hero-meta{flex-direction:column;align-items:stretch;}
  .meta-pill{justify-content:center;}
  .btn{padding:12px 18px;}
  .panel{padding:var(--sp-4);}
  .number-list li{padding:var(--sp-4) var(--sp-3);}
  .logo-text{font-size:17px;}
}

/* roulang page: category2 */
/* ===================== 设计变量 ===================== */
:root{
  --brand-600:#1B5FD9;
  --brand-700:#1449A8;
  --brand-500:#3B7BEA;
  --brand-50:#EDF3FE;
  --accent-500:#FF7A2F;
  --accent-50:#FFF2EA;
  --success:#12B886;
  --success-50:rgba(18,184,134,.10);
  --warning:#F2B01E;
  --warning-50:#FFF8E6;
  --danger:#E5484D;
  --danger-50:#FDECEC;

  --bg:#F5F7FB;
  --bg-alt:#FBFCFE;
  --card:#FFFFFF;
  --footer-bg:#0F1B33;

  --text:#1D2433;
  --text-2:#5B6578;
  --text-3:#8A94A6;
  --border:#E5EAF3;
  --input-border:#D7DEEB;
  --track:#EEF2F8;

  --r-btn:10px;
  --r-chip:999px;
  --r-card:16px;
  --r-lg:24px;
  --r-img:12px;

  --shadow-1:0 1px 2px rgba(16,32,64,.06), 0 2px 8px rgba(16,32,64,.06);
  --shadow-2:0 12px 32px rgba(27,95,217,.14);

  --t:.22s ease;
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.35;color:var(--text);letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{
  color:var(--brand-600);
  text-decoration:none;
  transition:color var(--t),background-color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
a:focus-visible,button:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(27,95,217,.25);
  border-radius:var(--r-btn);
}
button{font-family:inherit;cursor:pointer}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

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

/* ===================== 通用按钮 ===================== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:500;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px rgba(27,95,217,.24)}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(27,95,217,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(27,95,217,.22)}
.btn-secondary{background:#fff;border-color:#C9DCFA;color:var(--brand-600)}
.btn-secondary:hover{background:var(--brand-50);border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:500;
  color:var(--brand-600);
}
.text-link:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}

/* ===================== 通用标签 / 徽章 ===================== */
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  background:var(--brand-50);
  color:var(--brand-600);
  font-size:12px;
  line-height:1;
  white-space:nowrap;
}
.tag-accent{background:var(--accent-50);color:var(--accent-500)}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  line-height:1;
  white-space:nowrap;
}
.badge-doing{background:var(--accent-50);color:var(--accent-500)}
.badge-done{background:var(--success-50);color:var(--success)}
.badge-idle{background:#EEF2F8;color:var(--text-3)}

/* ===================== 页头 ===================== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t),border-color var(--t),background-color var(--t);
}
.site-header.is-scrolled{
  border-bottom-color:var(--border);
  box-shadow:var(--shadow-1);
}
.header-inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:20px;
  min-height:72px;
  transition:min-height var(--t);
}
.site-header.is-scrolled .header-inner{min-height:64px}

.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:none;
  color:var(--text);
  font-size:18px;
  font-weight:600;
  line-height:1;
}
.logo:hover{color:var(--brand-600)}
.logo-mark{
  position:relative;
  width:28px;
  height:28px;
  flex:none;
  border-radius:9px;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
  box-shadow:0 4px 12px rgba(27,95,217,.28);
}
.logo-mark::after{
  content:"";
  position:absolute;
  inset:8px;
  border-radius:4px;
  background:#fff;
  opacity:.92;
}

.nav-chips{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex:none;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 16px;
  border-radius:var(--r-chip);
  border:1px solid var(--border);
  background:#fff;
  color:var(--text-2);
  font-size:14px;
  line-height:1;
  white-space:nowrap;
}
.chip:hover{background:var(--brand-50);border-color:#CFE0FB;color:var(--brand-600)}
.chip:active{transform:translateY(1px)}
.chip.is-active{
  background:var(--brand-600);
  border-color:var(--brand-600);
  color:#fff;
  box-shadow:inset 0 2px 5px rgba(9,40,96,.22);
}
.chip.is-active:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff}

.header-cta{flex:none}
.nav-mobile-cta{display:none}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  flex:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border:1px solid var(--border);
  border-radius:var(--r-btn);
  background:#fff;
  margin-left:auto;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform var(--t),opacity var(--t);
}
.site-header.is-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header.is-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.is-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===================== 分类首屏 ===================== */
.cat-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--border);
  background:linear-gradient(180deg,#F5F7FB 0%,#FFFFFF 100%);
}
.cat-hero-bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center right;
  opacity:.18;
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,#F5F7FB 20%,rgba(245,247,251,.88) 46%,rgba(245,247,251,.45) 100%);
}
.cat-hero-inner{
  position:relative;
  z-index:2;
  padding:52px 0 68px;
}
.cat-hero-copy{max-width:760px}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#C4CCDA}
.breadcrumb .current{color:var(--text-2)}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:var(--brand-50);
  color:var(--brand-600);
  font-size:13px;
  font-weight:500;
  line-height:1;
  margin-bottom:18px;
}
.cat-hero h1{
  font-size:40px;
  line-height:1.28;
  margin-bottom:18px;
}
.cat-hero-sub{
  font-size:17px;
  line-height:1.8;
  color:var(--text-2);
  max-width:660px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  margin-top:30px;
}
.hero-points li{
  position:relative;
  padding-left:22px;
  font-size:14px;
  color:var(--text-2);
}
.hero-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:12px;
  height:12px;
  border-radius:50%;
  background:var(--brand-50);
  border:3px solid var(--brand-500);
  box-sizing:content-box;
  transform:scale(.42);
}

/* ===================== 板块通用 ===================== */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:740px;margin-bottom:44px}
.section-head h2{
  font-size:28px;
  line-height:1.4;
  margin-bottom:14px;
}
.section-head p{
  font-size:16px;
  color:var(--text-2);
}
.section-head .eyebrow{margin-bottom:16px}

/* ===================== 顶部说明条 ===================== */
.notice-bar{
  display:flex;
  gap:20px;
  align-items:flex-start;
  background:var(--card);
  border:1px solid var(--border);
  border-left:4px solid var(--brand-600);
  border-radius:var(--r-card);
  padding:26px 28px;
  box-shadow:var(--shadow-1);
}
.notice-icon{
  flex:none;
  width:44px;
  height:44px;
  border-radius:12px;
  background:var(--brand-50);
  color:var(--brand-600);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  font-weight:600;
}
.notice-body h2{
  font-size:20px;
  margin-bottom:10px;
}
.notice-body p{
  color:var(--text-2);
  font-size:15px;
}
.notice-body p + p{margin-top:10px}

/* ===================== 三列卡片网格 ===================== */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  border-color:#D8E6FD;
}
.card-media{
  position:relative;
  aspect-ratio:16/10;
  background:var(--track);
  overflow:hidden;
}
.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:22px 22px 24px;
  flex:1;
}
.card-body .tag{align-self:flex-start}
.card-title{
  font-size:18px;
  font-weight:600;
  line-height:1.45;
  transition:color var(--t);
}
.card:hover .card-title{color:var(--brand-600)}
.card-text{
  font-size:14.5px;
  line-height:1.75;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
}

/* ===================== 双栏：状态 + 清单 ===================== */
.split{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:24px;
  align-items:start;
}
.panel{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:28px 28px 30px;
  box-shadow:var(--shadow-1);
}
.panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:22px;
  flex-wrap:wrap;
}
.panel-head h3{font-size:19px}

.progress-wrap{margin-bottom:26px}
.progress-meta{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:10px;
}
.progress-meta .pct{
  font-size:20px;
  font-weight:600;
  color:var(--brand-600);
  line-height:1;
}
.progress{
  height:10px;
  border-radius:999px;
  background:var(--track);
  overflow:hidden;
}
.progress-fill{
  height:100%;
  width:72%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--brand-600),var(--accent-500));
  transition:width .6s ease;
}

.task-list{display:flex;flex-direction:column;gap:2px}
.task-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 2px;
  border-bottom:1px dashed var(--border);
}
.task-item:last-child{border-bottom:0}
.task-item span.task-name{
  font-size:15px;
  color:var(--text-2);
  line-height:1.6;
}
.task-item .badge{flex:none}

.check-list{display:flex;flex-direction:column;gap:16px}
.check-list li{
  position:relative;
  padding-left:32px;
  font-size:15px;
  line-height:1.75;
  color:var(--text-2);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:5px;
  width:20px;
  height:20px;
  border-radius:7px;
  background:var(--brand-50);
  border:1px solid #D8E6FD;
}
.check-list li::after{
  content:"";
  position:absolute;
  left:6px;
  top:10px;
  width:8px;
  height:4px;
  border-left:2px solid var(--brand-600);
  border-bottom:2px solid var(--brand-600);
  transform:rotate(-45deg);
}
.panel-note{
  margin-top:24px;
  padding:16px 18px;
  border-radius:var(--r-img);
  background:var(--accent-50);
  color:#8A4415;
  font-size:14px;
  line-height:1.75;
  border-left:3px solid var(--accent-500);
}

/* ===================== FAQ ===================== */
.faq-list{
  display:grid;
  gap:12px;
  max-width:920px;
}
.faq-item{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:#D8E6FD}
.faq-item.is-open{
  border-color:#CFE0FB;
  box-shadow:var(--shadow-1),inset 3px 0 0 var(--brand-600);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 22px;
  background:none;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  line-height:1.6;
  transition:color var(--t),background-color var(--t);
}
.faq-q:hover{color:var(--brand-600);background:#FAFCFF}
.faq-icon{
  position:relative;
  width:18px;
  height:18px;
  flex:none;
  transition:transform .24s ease;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand-600);
  border-radius:2px;
  transition:opacity var(--t),transform var(--t);
}
.faq-icon::before{top:8px;left:0;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-item.is-open .faq-a{max-height:360px}
.faq-a-inner{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ===================== 底部 CTA ===================== */
.cta-section{padding:0 0 88px}
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  background:var(--brand-50);
  border:1px solid #D8E6FD;
  border-radius:var(--r-lg);
  padding:34px 38px;
}
.cta-copy{max-width:640px}
.cta-copy h2{
  font-size:22px;
  line-height:1.45;
  margin-bottom:10px;
}
.cta-copy p{
  font-size:15px;
  color:var(--text-2);
}

/* ===================== 页脚 ===================== */
.site-footer{
  background:var(--footer-bg);
  color:rgba(255,255,255,.72);
  padding:64px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .logo{
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .logo:hover{color:#fff}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.6);
  max-width:340px;
}
.footer-col h3{
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.75);
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a,
.footer-col span{
  font-size:14px;
  color:rgba(255,255,255,.6);
  line-height:1.6;
}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.45);
}

/* ===================== 响应式 ===================== */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .nav-chips{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:12px 24px 18px;
    background:#fff;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-1);
    overflow:visible;
    display:none;
  }
  .site-header.is-open .nav-chips{display:flex}
  .chip{
    height:46px;
    justify-content:flex-start;
    border-radius:var(--r-btn);
    padding:0 16px;
  }
  .nav-mobile-cta{
    display:inline-flex;
    width:100%;
    margin-top:6px;
  }
  .cat-hero-inner{padding:40px 0 56px}
  .cat-hero h1{font-size:32px}
  .section{padding:64px 0}
  .cta-section{padding:0 0 64px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:767px){
  .container{padding:0 16px}
  .header-inner{min-height:64px}
  .logo{font-size:16px}
  .cat-hero-inner{padding:32px 0 48px}
  .cat-hero h1{font-size:28px}
  .cat-hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1 1 auto}
  .section{padding:56px 0}
  .cta-section{padding:0 0 56px}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:22px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .card-body{padding:18px 16px 20px}
  .notice-bar{flex-direction:column;padding:22px 20px;gap:14px}
  .panel{padding:22px 18px 24px}
  .cta-band{padding:26px 20px}
  .cta-band .btn{width:100%}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a-inner{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

@media (max-width:479px){
  .cat-hero h1{font-size:28px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-points{flex-direction:column;gap:10px}
  .task-item{flex-direction:column;align-items:flex-start;gap:8px}
}

/* ===================== 无障碍与状态 ===================== */
.sr-only{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

/* roulang page: category3 */
:root{
  --brand-600:#1B5FD9;
  --brand-700:#1449A8;
  --brand-500:#3B7BEA;
  --brand-50:#EDF3FE;
  --accent-500:#FF7A2F;
  --accent-50:#FFF2EA;
  --ok:#12B886;
  --ok-ink:#0E9A72;
  --warn:#F2B01E;
  --err:#E5484D;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --alt:#FBFCFE;
  --footer-bg:#0F1B33;
  --text:#1D2433;
  --text-2:#5B6578;
  --text-3:#8A94A6;
  --line:#E5EAF3;
  --input-line:#D7DEEB;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(16,32,64,.06), 0 2px 8px rgba(16,32,64,.06);
  --sh-2:0 12px 32px rgba(27,95,217,.14);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-700)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--text)}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(27,95,217,.25);border-radius:var(--r-sm)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:78px;
  transition:height .24s ease;
}
.site-header.is-scrolled .header-inner{height:68px}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:600;
  white-space:nowrap;
  flex:0 0 auto;
}
.logo:hover{color:var(--text)}
.logo-mark{
  position:relative;
  width:32px;
  height:32px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
  box-shadow:0 6px 14px rgba(27,95,217,.28);
}
.logo-mark::after{
  content:"";
  position:absolute;
  inset:9px;
  border-radius:4px;
  background:#fff;
  opacity:.94;
}
.logo-text{font-size:18px;line-height:1.2}
.nav-chips{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
  overflow-x:auto;
  scrollbar-width:none;
  padding:4px 2px;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--text-2);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.chip:hover{background:var(--brand-50);color:var(--brand-600);border-color:#CFE0FB}
.chip:active{transform:translateY(1px)}
.chip.is-active{
  background:var(--brand-600);
  border-color:var(--brand-600);
  color:#fff;
  box-shadow:inset 0 2px 6px rgba(8,26,60,.18);
}
.header-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.menu-toggle{
  display:none;
  width:42px;
  height:42px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.menu-toggle:hover{background:var(--brand-50);border-color:#CFE0FB}
.menu-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--text);
  border-radius:2px;
  position:relative;
}
.menu-toggle span::before,
.menu-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--text);
  border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-panel.is-open{display:block}
.mobile-nav{display:flex;flex-direction:column;gap:8px;padding:16px 0 8px}
.mobile-nav a{
  display:block;
  padding:12px 16px;
  border-radius:var(--r-sm);
  color:var(--text-2);
  font-size:15px;
  font-weight:500;
  border:1px solid transparent;
}
.mobile-nav a:hover{background:var(--brand-50);color:var(--brand-600);border-color:#CFE0FB}
.mobile-nav a.is-active{background:var(--brand-600);color:#fff;border-color:var(--brand-600)}
.mobile-panel .btn{width:100%;margin:8px 0 20px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:500;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px rgba(27,95,217,.22)}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand-600);border-color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--brand-600);border-color:#CFE0FB}
.btn-light:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none}
.link-more{
  color:var(--brand-600);
  font-size:14px;
  font-weight:500;
  text-underline-offset:3px;
}
.link-more:hover{text-decoration:underline;color:var(--brand-700)}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:72px 0 88px;
  background:
    radial-gradient(1000px 420px at 88% -10%,rgba(59,123,234,.10),transparent 68%),
    linear-gradient(180deg,#F5F7FB 0%,#FFFFFF 100%);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(27,95,217,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(27,95,217,.05) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.5;
  pointer-events:none;
}
.hero .container{position:relative}
.hero-inner{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  background:var(--brand-50);
  color:var(--brand-600);
  font-size:13px;
  font-weight:500;
}
.eyebrow::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand-600);
}
.hero h1{
  font-size:40px;
  line-height:1.24;
  margin:18px 0 16px;
  max-width:620px;
}
.hero .lead{
  font-size:17px;
  line-height:1.8;
  color:var(--text-2);
  max-width:580px;
  margin-bottom:0;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-note{
  margin-top:18px;
  font-size:13px;
  color:var(--text-3);
}
.hero-media{position:relative}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.hero-float{
  position:absolute;
  right:-6px;
  bottom:-22px;
  min-width:210px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:16px 20px;
  box-shadow:var(--sh-2);
}
.hero-float .row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:var(--text-3);
}
.hero-float .row + .row{margin-top:8px}
.hero-float strong{font-size:20px;color:var(--text);font-weight:600}
.dot-ok{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--ok-ink);
  font-weight:500;
}
.dot-ok::before{
  content:"";
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--ok);
  box-shadow:0 0 0 3px rgba(18,184,134,.16);
}

/* ---------- section base ---------- */
.section{padding:88px 0}
.section-alt{background:var(--alt)}
.section-line{
  height:1px;
  background:var(--line);
  border:0;
  margin:0;
}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:28px;line-height:1.4;margin-bottom:12px}
.section-head p{color:var(--text-2);margin:0}
.section-head .link-more{margin-top:14px;display:inline-block}

/* ---------- intro strip ---------- */
.strip-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--gap);
  margin-top:-56px;
  position:relative;
  z-index:2;
}
.strip-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.strip-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.strip-card h3{font-size:17px;margin-bottom:8px}
.strip-card p{font-size:14px;line-height:1.7;color:var(--text-2);margin:0}
.strip-icon{
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--brand-50);
  color:var(--brand-600);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:600;
  margin-bottom:14px;
}
.strip-card:nth-child(2) .strip-icon{background:var(--accent-50);color:#D9601F}
.strip-card:nth-child(3) .strip-icon{background:rgba(18,184,134,.12);color:var(--ok-ink)}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";
  position:absolute;
  left:15px;
  top:12px;
  bottom:12px;
  width:2px;
  background:var(--line);
}
.tl-item{position:relative;padding-left:60px;margin-bottom:20px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{
  position:absolute;
  left:0;
  top:18px;
  width:32px;
  height:32px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--brand-600);
  color:var(--brand-600);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:600;
  font-variant-numeric:tabular-nums;
  z-index:1;
}
.tl-item.is-done .tl-dot{background:var(--brand-600);color:#fff}
.tl-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 26px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#CFE0FB}
.tl-card h3{font-size:18px;line-height:1.5;margin-bottom:8px}
.tl-card p{color:var(--text-2);font-size:15px;margin:0}
.tl-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:14px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- badge ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  line-height:1;
}
.badge-ok{background:rgba(18,184,134,.12);color:var(--ok-ink)}
.badge-warn{background:var(--accent-50);color:#D9601F}
.badge-neutral{background:#EEF2F8;color:var(--text-3)}
.badge-brand{background:var(--brand-50);color:var(--brand-600)}

/* ---------- cards grid ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  display:flex;
  flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.card-media{position:relative;overflow:hidden}
.card-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .35s ease;
}
.card:hover .card-media img{transform:scale(1.03)}
.card-tag{
  position:absolute;
  left:14px;
  top:14px;
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:999px;
  background:rgba(255,255,255,.94);
  color:var(--brand-600);
  font-size:12px;
  font-weight:500;
}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.5}
.card-body p{font-size:14px;line-height:1.75;color:var(--text-2);margin:0}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
}
.check-list{display:flex;flex-direction:column;gap:8px;margin-top:4px}
.check-list li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand-500);
}

/* ---------- faq ---------- */
.faq-list{max-width:900px}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#CFE0FB}
.faq-item[open]{border-color:#CFE0FB;box-shadow:var(--sh-1)}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 24px;
  font-size:16px;
  font-weight:500;
  color:var(--text);
  cursor:pointer;
  list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-icon{
  position:relative;
  flex:0 0 18px;
  width:18px;
  height:18px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand-600);
  border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}
.faq-item[open] .faq-a{
  border-left:3px solid var(--brand-600);
  margin-left:24px;
  padding-left:18px;
  padding-right:24px;
}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(135deg,#EDF3FE 0%,#FFFFFF 100%);
  border:1px solid #DCE8FC;
  border-radius:var(--r-lg);
  padding:44px 52px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-band h2{font-size:24px;line-height:1.45;margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15px;margin:0;max-width:620px}
.cta-band .cta-actions{display:flex;gap:12px;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{
  background:var(--footer-bg);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text,.footer-brand .logo:hover{color:#fff}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.66);
  margin:0;
  max-width:340px;
}
.footer-col h3{
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.7);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{
  font-size:14px;
  color:rgba(255,255,255,.7);
  transition:color .2s ease;
}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .section{padding:64px 0}
  .hero{padding:56px 0 72px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:34px;max-width:none}
  .hero-media img{aspect-ratio:16/9}
  .hero-float{right:16px;bottom:-18px}
  .strip-grid{grid-template-columns:1fr;margin-top:-40px;gap:16px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .nav-chips{display:none}
  .menu-toggle{display:inline-flex}
  .header-cta .btn{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{margin-top:64px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .hero h1{font-size:29px}
  .hero .lead{font-size:16px}
  .section-head h2{font-size:22px}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:24px}
  .cta-band h2{font-size:21px}
  .cta-band .cta-actions{width:100%;flex-direction:column}
  .cta-band .btn{width:100%}
  .timeline::before{left:13px}
  .tl-item{padding-left:50px}
  .tl-dot{width:28px;height:28px;font-size:12px}
  .tl-card{padding:18px 18px}
  .faq-item[open] .faq-a{margin-left:18px;padding-left:14px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .hero{padding:44px 0 56px}
  .hero h1{font-size:26px;line-height:1.32}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-float{position:static;margin-top:16px;right:auto;bottom:auto}
  .section{padding:48px 0}
  .card-body{padding:18px 16px 20px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a{padding:0 18px 18px}
  .tl-card{padding:16px}
  .logo-text{font-size:16px}
}

/* roulang page: category4 */
:root{
  --brand-600:#1B5FD9;
  --brand-700:#1449A8;
  --brand-500:#3B7BEA;
  --brand-50:#EDF3FE;
  --accent-500:#FF7A2F;
  --accent-50:#FFF2EA;
  --success:#12B886;
  --warn:#F2B01E;
  --error:#E5484D;
  --bg:#F5F7FB;
  --bg-alt:#FBFCFE;
  --card:#FFFFFF;
  --footer-bg:#0F1B33;
  --text:#1D2433;
  --text-2:#5B6578;
  --text-3:#8A94A6;
  --border:#E5EAF3;
  --input-border:#D7DEEB;
  --radius-btn:10px;
  --radius-card:16px;
  --radius-lg:24px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(16,32,64,.06), 0 2px 8px rgba(16,32,64,.06);
  --shadow-2:0 12px 32px rgba(27,95,217,.14);
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:28px;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease,box-shadow .18s ease,transform .18s ease}
a:hover{color:var(--brand-700)}
button{font:inherit;color:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(27,95,217,.25);border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ Header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  padding:10px 0;
  background:transparent;
  transition:background-color .24s ease,box-shadow .24s ease,padding .24s ease;
}
.site-header.is-scrolled{background:rgba(255,255,255,.96);box-shadow:var(--shadow-1);padding:2px 0;backdrop-filter:saturate(160%) blur(8px)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:600;font-size:18px;line-height:24px;white-space:nowrap}
.logo:hover{color:var(--brand-700)}
.logo-mark{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;position:relative;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
}
.logo-mark::after{
  content:"";position:absolute;inset:8px;border-radius:3px;background:#fff;opacity:.9;
}
.logo-text{letter-spacing:0}
.nav-chips{
  display:flex;align-items:center;gap:8px;margin-left:auto;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:4px 2px;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;border:1px solid var(--border);background:#fff;
  color:var(--text-2);font-size:14px;font-weight:500;line-height:1;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.chip:hover{background:var(--brand-50);border-color:#CFE0F8;color:var(--brand-600)}
.chip.is-active{
  background:var(--brand-600);border-color:var(--brand-600);color:#fff;
  box-shadow:inset 0 1px 3px rgba(8,24,56,.22);
}
.header-cta{flex:0 0 auto;margin-left:8px}
.menu-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0;margin-left:auto;
  background:#fff;border:1px solid var(--border);border-radius:12px;
}
.menu-toggle span{display:block;width:18px;height:2px;margin:0 auto;background:var(--text-2);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none}
.mobile-menu.is-open{
  display:block;position:fixed;top:64px;left:12px;right:12px;z-index:79;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:16px;
}
.mobile-menu nav{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.mobile-menu nav a{
  display:flex;align-items:center;height:46px;padding:0 16px;border-radius:12px;
  background:var(--bg-alt);border:1px solid var(--border);color:var(--text-2);font-size:15px;
}
.mobile-menu nav a.is-active{background:var(--brand-50);border-color:#CFE0F8;color:var(--brand-700);font-weight:600}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px rgba(27,95,217,.22)}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(27,95,217,.26)}
.btn-ghost{background:transparent;border-color:var(--brand-600);color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand-700);border-color:#fff}
.btn-light:hover{background:#EAF1FE;color:var(--brand-700)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}
.link-more{font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{text-decoration:underline;text-underline-offset:3px}

/* ============ Hero ============ */
.hero-banner{
  position:relative;padding:148px 0 76px;overflow:hidden;
  background:linear-gradient(180deg,#F5F7FB 0%,#FFFFFF 100%);
}
.hero-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.13;
}
.hero-banner::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(27,95,217,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(27,95,217,.05) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.6;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:48px;align-items:center}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:16px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb span.sep{color:#C3CBDA}
.hero-banner h1{font-size:40px;line-height:48px;font-weight:600;letter-spacing:0;margin-bottom:16px;color:var(--text)}
.hero-sub{font-size:16px;line-height:28px;color:var(--text-2);max-width:600px;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px}
.hero-facts li{display:flex;flex-direction:column;gap:2px}
.hero-facts .fact-num{font-size:22px;font-weight:600;color:var(--brand-700);line-height:30px;font-variant-numeric:tabular-nums}
.hero-facts .fact-label{font-size:13px;line-height:20px;color:var(--text-3)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow-2);
}
.hero-float{
  position:absolute;right:-8px;bottom:-18px;width:230px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:16px 18px;
}
.hero-float .float-label{font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:6px;margin-bottom:6px}
.dot-online{width:8px;height:8px;border-radius:50%;background:var(--success);display:inline-block;box-shadow:0 0 0 3px rgba(18,184,134,.16)}
.hero-float .float-value{font-size:24px;font-weight:600;line-height:32px;color:var(--text);font-variant-numeric:tabular-nums}
.hero-float .float-tip{font-size:12px;line-height:18px;color:var(--text-3);margin-top:4px}

/* ============ Sections ============ */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;margin-bottom:14px;
  border-radius:999px;background:var(--brand-50);color:var(--brand-700);
  font-size:13px;font-weight:500;line-height:1;
}
.section-title{font-size:28px;line-height:38px;font-weight:600;color:var(--text)}
.section-desc{margin-top:12px;font-size:16px;line-height:28px;color:var(--text-2)}

/* ============ 现象卡片 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:24px;display:flex;flex-direction:column;gap:12px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D3E2FA}
.card-icon{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-50);color:var(--brand-600);font-size:16px;font-weight:600;
}
.card-icon.warm{background:var(--accent-50);color:var(--accent-500)}
.card h3{font-size:18px;line-height:28px;font-weight:600;color:var(--text)}
.card p{font-size:14px;line-height:24px;color:var(--text-2)}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:4px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-700);font-size:12px;line-height:1;font-weight:500;
}
.tag.warm{background:var(--accent-50);color:#C4551A}
.tag.gray{background:#F1F4FA;color:var(--text-2)}
.badge-ok{background:rgba(18,184,134,.1);color:var(--success)}
.badge-doing{background:var(--accent-50);color:var(--accent-500)}
.badge-todo{background:#F1F4FA;color:var(--text-2)}

/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split + .split{margin-top:88px}
.split-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
}
.split-body h2{font-size:28px;line-height:38px;font-weight:600;margin-bottom:16px}
.split-body p{font-size:16px;line-height:28px;color:var(--text-2);margin-bottom:16px}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:8px}
.check-list li{display:flex;gap:12px;font-size:15px;line-height:26px;color:var(--text-2)}
.check-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:50%;
  background:var(--brand-600);
}
.check-list li strong{color:var(--text);font-weight:600}

/* ============ 步骤条 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;margin-top:8px}
.step{position:relative;padding-right:24px}
.step:last-child{padding-right:0}
.step-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.step-num{
  width:32px;height:32px;flex:0 0 auto;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:2px solid var(--brand-600);color:var(--brand-600);font-size:14px;font-weight:600;background:#fff;
  font-variant-numeric:tabular-nums;
}
.step.is-done .step-num{background:var(--brand-600);color:#fff}
.step-line{flex:1;height:2px;background:var(--border);border-radius:2px}
.step.is-done .step-line{background:var(--brand-600)}
.step:last-child .step-line{display:none}
.step h3{font-size:17px;line-height:26px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;line-height:24px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;position:relative;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#D3E2FA}
.faq-item.is-open{border-color:#CFE0F8;box-shadow:0 6px 20px rgba(27,95,217,.1)}
.faq-item.is-open::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--brand-600);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  background:none;border:0;padding:18px 24px;font-size:16px;font-weight:600;line-height:26px;color:var(--text);
}
.faq-q:hover{color:var(--brand-700)}
.faq-sign{
  flex:0 0 auto;width:24px;height:24px;position:relative;border-radius:50%;
  background:var(--brand-50);transition:transform .22s ease,background-color .22s ease;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-sign::before{width:11px;height:2px}
.faq-sign::after{width:2px;height:11px}
.faq-item.is-open .faq-sign{transform:rotate(45deg);background:#DCE8FC}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a-inner{padding:0 24px 20px;font-size:15px;line-height:27px;color:var(--text-2)}

/* ============ CTA 条 ============ */
.cta-band{
  background:linear-gradient(120deg,#EAF1FE 0%,#F4F8FF 60%,#FFF3EB 100%);
  border:1px solid #DCE7FA;border-radius:var(--radius-lg);
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{font-size:24px;line-height:34px;font-weight:600;margin-bottom:8px}
.cta-band p{font-size:15px;line-height:26px;color:var(--text-2);max-width:640px}
.cta-actions{display:flex;gap:12px;flex:0 0 auto}

/* ============ Footer ============ */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo:hover{color:#fff}
.footer-brand p{font-size:14px;line-height:25px;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h3{font-size:14px;font-weight:600;line-height:22px;color:rgba(255,255,255,.7);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;line-height:22px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;
  align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;line-height:20px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:640px}
  .hero-float{right:8px;bottom:-16px}
  .section{padding:64px 0}
  .split{grid-template-columns:1fr;gap:32px}
  .split + .split{margin-top:64px}
  .split.reverse .split-media{order:2}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
}
@media (max-width:768px){
  .nav-chips{display:none}
  .header-cta{display:none}
  .menu-toggle{display:flex}
  .hero-banner{padding:120px 0 56px}
  .hero-banner h1{font-size:28px;line-height:36px}
  .hero-float{position:static;width:100%;margin-top:16px;right:auto;bottom:auto}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:24px}
  .step{padding-right:0}
  .step-line{display:none}
  .section{padding:56px 0}
  .section-title{font-size:22px;line-height:32px}
  .split-body h2{font-size:22px;line-height:32px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a-inner{padding:0 18px 18px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero-banner h1{font-size:28px;line-height:36px}
  .card{padding:16px}
  .hero-actions .btn{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:24px}
}