/* roulang page: index */
:root{
  --brand:#5A34E8;
  --brand-dark:#3E1FB0;
  --brand-soft:#EFEBFF;
  --brand-accent:#12D6B4;
  --brand-accent-soft:#E4FBF6;
  --accent-orange:#FF7A45;
  --ink:#16182C;
  --ink-2:#3A3F52;
  --muted:#62677E;
  --disabled:#9AA0B4;
  --bg:#F5F6FB;
  --surface:#FFFFFF;
  --line:#E6E8F2;
  --radius-sm:12px;
  --radius-md:14px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(22,24,44,.06);
  --shadow-2:0 8px 24px rgba(22,24,44,.08);
  --shadow-3:0 16px 40px rgba(90,52,232,.14);
  --space-1:4px;
  --space-2:8px;
  --space-3:12px;
  --space-4:16px;
  --space-5:24px;
  --space-6:32px;
  --space-7:48px;
  --space-8:64px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease;}
a:hover{color:var(--brand-dark);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;letter-spacing:-0.01em;}
h1{font-size:clamp(30px,1.4rem + 2.4vw,52px);line-height:1.18;font-weight:700;}
h2{font-size:clamp(22px,1.1rem + 1vw,32px);line-height:1.3;}
h3{font-size:20px;line-height:1.4;}
p{margin:0 0 var(--space-4);}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container,.container-lg{max-width:var(--container);padding-left:20px;padding-right:20px;margin:0 auto;}
@media (min-width:1400px){.container,.container-lg{max-width:1320px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease;
  backdrop-filter:saturate(140%) blur(6px);
}
.site-header.is-scrolled{box-shadow:var(--shadow-2);}
.header-inner{display:flex;align-items:center;gap:var(--space-5);min-height:74px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),#7A5CFF);
  color:#fff;box-shadow:var(--shadow-3);flex:0 0 auto;
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-0.01em;white-space:nowrap;}
.brand-text .brand-short{display:none;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.main-nav a{
  position:relative;display:inline-block;padding:10px 12px;
  font-size:15px;font-weight:500;color:var(--ink-2);border-radius:var(--radius-sm);
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.main-nav a:hover{color:var(--brand);background:var(--brand-soft);}
.main-nav a.active{color:var(--brand);font-weight:600;}
.main-nav a.active::after{transform:scaleX(.6);}
.header-actions{display:flex;align-items:center;gap:var(--space-3);flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:#F1F2F8;border:1px solid transparent;
  border-radius:var(--radius-pill);padding:8px 14px;width:200px;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search svg{width:17px;height:17px;color:var(--muted);flex:0 0 auto;}
.nav-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;}
.nav-search input::placeholder{color:var(--disabled);}
.nav-search:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(90,52,232,.12);}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#fff;border:1px solid var(--brand);
  border-radius:var(--radius-sm);padding:12px 24px;font-size:15px;font-weight:600;
  transition:background .2s ease,transform .15s ease,box-shadow .2s ease;
}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-3);}
.btn-brand:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;color:var(--brand);border:1px solid var(--brand);
  border-radius:var(--radius-sm);padding:12px 24px;font-size:15px;font-weight:600;
  transition:background .2s ease,transform .15s ease;
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
}
.link-arrow svg{width:16px;height:16px;transition:transform .22s ease;}
.link-arrow:hover svg{transform:translateX(4px);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;
  border-radius:var(--radius-sm);align-items:center;justify-content:center;color:var(--ink);
}
.nav-toggle svg{width:20px;height:20px;}
.mobile-panel{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:var(--space-4) 0 var(--space-5);
}
.mobile-panel.open{display:block;}
.mobile-panel .mobile-search{margin-bottom:var(--space-4);}
.mobile-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:var(--space-4);}
.mobile-nav a{
  padding:12px 14px;border-radius:var(--radius-sm);color:var(--ink-2);font-size:16px;font-weight:500;
}
.mobile-nav a:hover,.mobile-nav a.active{background:var(--brand-soft);color:var(--brand);}

/* ---------- Section basics ---------- */
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.section-head{margin-bottom:var(--space-6);}
.section-head.center{text-align:center;max-width:760px;margin-left:auto;margin-right:auto;}
.section-head.split{
  display:flex;align-items:flex-end;justify-content:space-between;gap:var(--space-5);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-soft);color:var(--brand-dark);
  border-radius:var(--radius-pill);padding:5px 14px;
  font-size:13px;font-weight:500;letter-spacing:.02em;margin-bottom:var(--space-3);
}
.eyebrow.accent{background:var(--brand-accent-soft);color:#0A8F79;}
.lead{color:var(--muted);font-size:17px;}
.section-head p{color:var(--muted);margin:var(--space-3) 0 0;max-width:720px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:72px 0 80px;
  background:
    radial-gradient(900px 420px at 88% -10%,rgba(90,52,232,.10),transparent 70%),
    linear-gradient(180deg,#FFFFFF 0%,#F7F6FD 100%);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(90,52,232,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(90,52,232,.05) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 70%);
}
.hero-inner{position:relative;z-index:1;}
.hero-copy h1{margin-bottom:var(--space-4);}
.hero-sub{font-size:18px;color:var(--muted);max-width:520px;margin-bottom:var(--space-6);}
.hero-cta{display:flex;flex-wrap:wrap;gap:var(--space-3);margin-bottom:var(--space-6);}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:7px 15px;font-size:13px;font-weight:500;color:var(--ink-2);letter-spacing:.02em;
  box-shadow:var(--shadow-1);
}
.chip svg{width:15px;height:15px;color:var(--brand-accent);}
.hero-visual{position:relative;border-radius:22px;overflow:hidden;box-shadow:var(--shadow-3);border:1px solid var(--line);}
.hero-visual img{width:100%;height:430px;object-fit:cover;object-position:center;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(22,24,44,.72) 0%,rgba(22,24,44,.34) 55%,rgba(22,24,44,.16) 100%);
}
.hero-visual-caption{
  position:absolute;left:24px;bottom:24px;right:24px;z-index:2;color:#fff;
}
.hero-visual-caption strong{display:block;font-size:18px;font-weight:600;letter-spacing:-0.01em;}
.hero-visual-caption span{font-size:13px;color:rgba(255,255,255,.78);letter-spacing:.02em;}

/* ---------- Cards ---------- */
.card-soft{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);padding:24px;height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(90,52,232,.24);}
.card-soft h3{margin-bottom:var(--space-3);}
.card-soft p{color:var(--muted);font-size:15px;margin-bottom:var(--space-4);}
.icon-box{
  width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);margin-bottom:var(--space-4);
}
.icon-box svg{width:24px;height:24px;}
.icon-box.accent{background:var(--brand-accent-soft);color:#0A8F79;}
.feature-main{padding:32px;display:flex;flex-direction:column;}
.feature-main .feature-list{margin-top:auto;padding-top:var(--space-4);border-top:1px dashed var(--line);}
.feature-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);margin-bottom:10px;
}
.feature-list li:last-child{margin-bottom:0;}
.feature-list svg{width:18px;height:18px;color:var(--brand-accent);flex:0 0 auto;margin-top:4px;}
.mini-card{display:flex;gap:var(--space-4);align-items:flex-start;padding:22px;}
.mini-card .icon-box{margin-bottom:0;flex:0 0 auto;width:44px;height:44px;}
.mini-card h3{font-size:18px;margin-bottom:6px;}
.mini-card p{margin:0;font-size:15px;color:var(--muted);}
.stagger-1{margin-top:20px;}

/* ---------- Stats band ---------- */
.stats-band{
  background:linear-gradient(120deg,#16182C 0%,#2A2050 100%);
  color:#fff;padding:64px 0 56px;position:relative;overflow:hidden;
}
.stats-band::after{
  content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,214,180,.22),transparent 68%);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-5);position:relative;z-index:1;}
.stat-item{border-left:1px solid rgba(255,255,255,.12);padding-left:var(--space-5);}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{font-size:clamp(32px,3vw,46px);font-weight:700;line-height:1.1;color:#fff;letter-spacing:-0.02em;}
.stat-num em{font-style:normal;font-size:18px;font-weight:600;margin-left:4px;color:var(--brand-accent);}
.stat-label{font-size:14px;color:#B9BDD0;margin-top:10px;}
.stats-note{
  margin-top:var(--space-6);padding-top:var(--space-5);border-top:1px solid rgba(255,255,255,.08);
  font-size:14px;color:#B9BDD0;position:relative;z-index:1;
}

/* ---------- Case cards ---------- */
.case-big{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);height:100%;background:#fff;}
.case-big img{width:100%;height:300px;object-fit:cover;transition:transform .22s ease;}
.case-big:hover img{transform:scale(1.03);}
.case-big .case-body{padding:24px;}
.case-big h3{margin:12px 0 10px;font-size:21px;}
.case-big p{color:var(--muted);font-size:15px;margin-bottom:var(--space-4);}
.tag{
  display:inline-block;background:var(--brand-soft);color:var(--brand-dark);
  border-radius:var(--radius-pill);padding:4px 12px;font-size:13px;font-weight:500;letter-spacing:.02em;
}
.tag.accent{background:var(--brand-accent-soft);color:#0A8F79;}
.tag.orange{background:#FFF1EA;color:#C24A17;}
.case-mini{
  display:flex;gap:var(--space-4);align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-md);padding:14px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.case-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(90,52,232,.24);}
.case-mini img{width:104px;height:78px;object-fit:cover;border-radius:var(--radius-md);flex:0 0 auto;}
.case-mini h3{font-size:16px;margin:6px 0 4px;line-height:1.45;}
.case-mini p{font-size:13px;color:var(--muted);margin:0;}
.case-stack{display:flex;flex-direction:column;gap:var(--space-4);height:100%;justify-content:space-between;}

/* ---------- Plan rows ---------- */
.plan-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-7);align-items:center;padding:var(--space-7) 0;border-bottom:1px dashed var(--line);}
.plan-row:last-child{border-bottom:0;padding-bottom:0;}
.plan-row.reverse .plan-media{order:2;}
.plan-index{
  font-size:44px;font-weight:700;line-height:1;color:rgba(90,52,232,.22);letter-spacing:-0.03em;margin-bottom:var(--space-3);
}
.plan-body h3{margin-bottom:var(--space-3);}
.plan-body p{color:var(--muted);font-size:15.5px;}
.plan-media img{width:100%;height:300px;object-fit:cover;border-radius:var(--radius-md);box-shadow:var(--shadow-2);}
.plan-points{margin-top:var(--space-4);}
.plan-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);margin-bottom:8px;}
.plan-points svg{width:18px;height:18px;color:var(--brand);flex:0 0 auto;margin-top:4px;}

/* ---------- News / CMS ---------- */
.news-section{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);padding:32px;}
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-6);}
.news-feature img{width:100%;height:250px;object-fit:cover;border-radius:var(--radius-md);margin-bottom:var(--space-4);}
.news-feature h3{font-size:21px;margin:12px 0 10px;}
.news-feature h3 a{color:var(--ink);}
.news-feature h3 a:hover{color:var(--brand);}
.news-feature p{color:var(--muted);font-size:15px;margin-bottom:var(--space-4);}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);letter-spacing:.02em;flex-wrap:wrap;}
.news-compact{display:flex;flex-direction:column;}
.news-item{padding:16px 0;border-bottom:1px solid var(--line);}
.news-item:first-child{padding-top:0;}
.news-item:last-child{border-bottom:0;padding-bottom:0;}
.news-item h3{font-size:17px;line-height:1.5;margin-bottom:6px;}
.news-item h3 a{color:var(--ink);}
.news-item h3 a:hover{color:var(--brand);}
.news-item p{font-size:14px;color:var(--muted);margin:0 0 8px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
.news-empty{
  grid-column:1 / -1;min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:var(--space-3);text-align:center;background:#F8F9FD;border:1px dashed var(--line);border-radius:var(--radius-lg);padding:var(--space-6);
}
.news-empty svg{width:44px;height:44px;color:var(--disabled);}
.news-empty p{font-size:14px;color:var(--muted);margin:0;}

/* ---------- FAQ ---------- */
.faq-aside h2{margin-bottom:var(--space-3);}
.faq-aside p{color:var(--muted);font-size:15.5px;}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
}
.accordion-button{
  position:relative;width:100%;text-align:left;border:0;background:#fff;color:var(--ink);
  font-size:16.5px;font-weight:600;padding:18px 52px 18px 22px;line-height:1.6;
  box-shadow:none!important;transition:color .2s ease,background .2s ease;
}
.accordion-button:hover{background:#FBFAFF;color:var(--brand);}
.accordion-button::after{
  content:"";position:absolute;right:24px;top:50%;width:12px;height:12px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:translateY(-70%) rotate(45deg) scale(.9);
  transition:transform .2s ease,border-color .2s ease;background-image:none;
}
.accordion-button:not(.collapsed){color:var(--brand);background:#fff;}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--brand);border-radius:0 3px 3px 0;
}
.accordion-button:not(.collapsed)::after{transform:translateY(-30%) rotate(-135deg) scale(.9);border-color:var(--brand);}
.accordion-body{padding:0 24px 22px;font-size:15.5px;color:var(--muted);line-height:1.85;}
.accordion-collapse{transition:height .2s ease;}

/* ---------- Contact ---------- */
.contact-section{background:#F3F0FF;padding:88px 0;}
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);padding:32px;height:100%;
}
.form-label{font-size:14px;font-weight:500;color:var(--ink);margin-bottom:6px;}
.form-control,.form-select{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:12px 14px;font-size:15px;color:var(--ink-2);box-shadow:none;
}
.form-control::placeholder{color:var(--disabled);}
.form-control:focus,.form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 4px rgba(90,52,232,.12);outline:none;
}
.form-check-input{border-color:var(--line);margin-top:.4em;}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand);}
.form-check-input:focus{box-shadow:0 0 0 4px rgba(90,52,232,.12);border-color:var(--brand);}
.form-check-label{font-size:14px;color:var(--muted);}
.contact-list li{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--line);}
.contact-list li:last-child{border-bottom:0;}
.contact-list .icon-box{margin-bottom:0;width:40px;height:40px;background:var(--brand-soft);}
.contact-list strong{display:block;font-size:15px;color:var(--ink);font-weight:600;}
.contact-list span{font-size:14px;color:var(--muted);}

/* ---------- CTA strip ---------- */
.cta-strip{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);padding:40px;display:flex;flex-wrap:wrap;gap:var(--space-5);
  align-items:center;justify-content:space-between;
}
.cta-strip h2{margin-bottom:8px;}
.cta-strip p{color:var(--muted);margin:0;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:var(--space-3);}

/* ---------- Footer ---------- */
.site-footer{background:#16182C;color:#B9BDD0;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:var(--space-6);}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:var(--space-4);}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand span{font-size:17px;font-weight:700;}
.footer-desc{font-size:14px;color:#B9BDD0;line-height:1.8;margin:0;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:var(--space-4);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#B9BDD0;display:inline-block;}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  margin-top:var(--space-7);border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8C92A8;
}
.footer-bottom a{color:#B9BDD0;}
.footer-bottom a:hover{color:#fff;}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .nav-search{width:160px;}
  .main-nav a{padding:10px 9px;font-size:14.5px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .section-sm{padding:48px 0;}
  .contact-section{padding:64px 0;}
  .main-nav,.header-actions .nav-search,.header-actions .btn-brand{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{min-height:66px;}
  .hero{padding:48px 0 56px;}
  .hero-visual{margin-top:var(--space-6);}
  .hero-visual img{height:320px;}
  .hero-sub{max-width:none;}
  .news-list{grid-template-columns:1fr;}
  .plan-row{grid-template-columns:1fr;gap:var(--space-5);padding:var(--space-6) 0;}
  .plan-row.reverse .plan-media{order:0;}
  .plan-media img{height:240px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:var(--space-6);}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--space-6);}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .section-head.split{flex-direction:column;align-items:flex-start;}
  .news-section{padding:22px;}
  .cta-strip{padding:26px;}
  .contact-card{padding:22px;}
  .brand-text{font-size:16px;}
  .case-mini{flex-direction:column;align-items:flex-start;}
  .case-mini img{width:100%;height:150px;}
}
@media (max-width:575.98px){
  .container,.container-lg{padding-left:16px;padding-right:16px;}
  .stats-grid{grid-template-columns:1fr;gap:var(--space-5);}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.12);padding-top:var(--space-4);}
  .stat-item:first-child{border-top:0;padding-top:0;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-cta .btn-brand,.hero-cta .btn-ghost{width:100%;}
  .brand-text .brand-full{display:none;}
  .brand-text .brand-short{display:inline;}
}

/* roulang page: article */
:root{
  --brand:#5A34E8;
  --brand-dark:#3E1FB0;
  --brand-soft:#EFEBFF;
  --brand-accent:#12D6B4;
  --accent-soft:#E4FBF6;
  --warm:#FF7A45;
  --ink:#16182C;
  --ink-2:#3A3F52;
  --muted:#62677E;
  --disabled:#9AA0B4;
  --bg:#F5F6FB;
  --surface:#FFFFFF;
  --line:#E6E8F2;
  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(22,24,44,.06);
  --shadow-2:0 8px 24px rgba(22,24,44,.08);
  --shadow-3:0 16px 40px rgba(90,52,232,.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;
  --container:1200px;
  --font:"-apple-system","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{color:var(--ink);font-weight:600;margin:0;letter-spacing:-.01em;}
ul,ol{margin:0;padding:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-2);}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:600;font-size:17px;white-space:nowrap;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,#7A57F5 100%);color:#fff;
}
.brand-mark svg{width:22px;height:22px;}
.brand-short{display:none;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.main-nav a{
  position:relative;display:inline-block;padding:10px 12px;font-size:15px;color:var(--ink-2);border-radius:var(--radius-sm);
  transition:color .2s ease,background .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.main-nav a:hover{color:var(--brand);background:#FAFAFF;}
.main-nav a.active{color:var(--brand);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;background:#F1F2F8;border:1px solid transparent;
  border-radius:var(--radius-pill);padding:8px 14px;transition:all .2s ease;
}
.nav-search svg{width:18px;height:18px;color:var(--muted);flex:0 0 18px;}
.nav-search input{border:0;background:transparent;outline:none;width:130px;font-size:14px;color:var(--ink);}
.nav-search input::placeholder{color:var(--disabled);}
.nav-search:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(90,52,232,.12);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;border:1px solid transparent;
  padding:12px 24px;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s ease;text-align:center;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:#4B29CE;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-3);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn-sm{padding:9px 18px;font-size:14px;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);}
.link-more svg{width:16px;height:16px;transition:transform .2s ease;}
.link-more:hover svg{transform:translateX(4px);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;color:var(--ink);cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 20px 22px;}
.mobile-panel.open{display:block;}
.mobile-panel a.m-link{display:block;padding:12px 4px;font-size:16px;color:var(--ink-2);border-bottom:1px solid var(--line);}
.mobile-panel a.m-link.active{color:var(--brand);font-weight:600;}
.mobile-panel .nav-search{margin:16px 0 12px;width:100%;}
.mobile-panel .nav-search input{width:100%;}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;color:#fff;padding:56px 0 52px;
  background-image:linear-gradient(100deg,rgba(62,31,176,.86) 0%,rgba(90,52,232,.70) 55%,rgba(90,52,232,.52) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.page-hero .breadcrumb-line{font-size:14px;color:rgba(255,255,255,.78);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:18px;}
.page-hero .breadcrumb-line a{color:rgba(255,255,255,.82);}
.page-hero .breadcrumb-line a:hover{color:#fff;}
.page-hero .breadcrumb-line .sep{color:rgba(255,255,255,.45);}
.page-hero .breadcrumb-line .current{color:#fff;}
.pill-tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:500;letter-spacing:.02em;background:var(--brand-soft);color:var(--brand-dark);
}
.pill-tag.on-dark{background:rgba(255,255,255,.16);color:#fff;}
.page-hero h1{
  color:#fff;font-size:clamp(30px,1.4rem + 2.4vw,52px);line-height:1.18;font-weight:700;letter-spacing:-.01em;
  margin:16px 0 18px;max-width:900px;
}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.8);}
.hero-meta .dot{color:rgba(255,255,255,.45);}

/* ---------- Layout ---------- */
.section{padding:64px 0;}
.section-tight{padding:48px 0 64px;}
.layout-2col{display:grid;grid-template-columns:minmax(0,780px) 320px;gap:48px;align-items:start;}
@media (max-width:1199.98px){.layout-2col{grid-template-columns:minmax(0,1fr) 300px;gap:32px;}}
@media (max-width:991.98px){.layout-2col{grid-template-columns:minmax(0,1fr);gap:32px;}}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(90,52,232,.24);}
.card-pad{padding:24px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,1.1rem + 1vw,32px);}
.section-head p{margin:8px 0 0;color:var(--muted);font-size:15px;max-width:640px;}
.eyebrow{font-size:13px;font-weight:500;letter-spacing:.08em;color:var(--brand);text-transform:uppercase;margin-bottom:10px;}

/* ---------- Article body ---------- */
.article-wrap{padding:40px 40px 44px;}
@media (max-width:767.98px){.article-wrap{padding:24px 18px 28px;}}
.article-body{font-size:17px;line-height:1.9;color:var(--ink-2);overflow-wrap:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;padding-left:16px;margin:48px 0 18px;font-size:clamp(22px,1.1rem + 1vw,32px);font-weight:600;line-height:1.4;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--brand);}
.article-body h3{margin:32px 0 14px;font-size:20px;font-weight:600;}
.article-body h4{margin:24px 0 12px;font-size:17px;font-weight:600;color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;line-height:1.9;}
.article-body li{margin-bottom:.4em;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-weight:600;}
.article-body img{border-radius:var(--radius-md);margin:24px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--brand-soft);border-left:4px solid var(--brand);border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:var(--ink-2);font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{text-decoration:underline;text-underline-offset:3px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px;}
.article-body thead th{background:var(--brand-soft);color:var(--ink);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#F8F9FD;}
.article-body tbody tr:hover{background:#F3F0FF;}
.article-body code{background:#F1F2F8;color:var(--brand-dark);padding:2px 8px;border-radius:12px;font-size:14px;}
.pre-block{
  background:#F8F9FD;border:1px solid var(--line);border-radius:var(--radius-md);padding:16px 18px;margin:24px 0;
  font-size:14px;color:var(--ink-2);white-space:pre-wrap;line-height:1.8;
}
.article-foot{
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--radius-pill);
  background:#F1F2F8;color:var(--ink-2);font-size:13px;font-weight:500;letter-spacing:.02em;transition:all .2s ease;
}
.tag:hover{background:var(--brand-soft);color:var(--brand-dark);}
.tag-cyan{background:var(--accent-soft);color:#0C8F7A;}

/* ---------- Empty state ---------- */
.empty-state{
  background:#F8F9FD;border:1px dashed #CFD3E6;border-radius:var(--radius-lg);
  padding:40px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;min-height:200px;
}
.empty-state svg{width:44px;height:44px;color:var(--disabled);}
.empty-state p{margin:0;font-size:14px;color:var(--muted);}

/* ---------- Sidebar ---------- */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px;}
@media (max-width:991.98px){.sidebar{position:static;}}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);padding:22px;}
.side-card h3{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand);display:inline-block;}
.side-list{display:flex;flex-direction:column;gap:16px;}
.side-item{display:flex;gap:12px;align-items:flex-start;}
.side-item img{width:76px;height:56px;object-fit:cover;border-radius:var(--radius-sm);flex:0 0 76px;}
.side-item .side-title{font-size:15px;font-weight:600;color:var(--ink);line-height:1.5;display:block;margin-bottom:6px;}
.side-item .side-title:hover{color:var(--brand);}
.side-item .side-meta{font-size:13px;color:var(--muted);}
.side-links{display:flex;flex-direction:column;gap:2px;}
.side-links a{display:block;padding:10px 12px;border-radius:var(--radius-sm);font-size:15px;color:var(--ink-2);border-left:3px solid transparent;transition:all .2s ease;}
.side-links a:hover{background:var(--brand-soft);border-left-color:var(--brand);color:var(--brand-dark);}

/* ---------- Related cards ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
@media (max-width:991.98px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}}
@media (max-width:575.98px){.related-grid{grid-template-columns:minmax(0,1fr);}}
.post-card{overflow:hidden;display:flex;flex-direction:column;}
.post-card .thumb{overflow:hidden;border-radius:var(--radius-md);margin:18px 18px 0;}
.post-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-md);transition:transform .22s ease;}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card .body h3{font-size:17px;line-height:1.5;}
.post-card .body p{margin:0;font-size:14px;color:var(--muted);line-height:1.7;}
.post-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:48px;align-items:start;}
@media (max-width:991.98px){.faq-grid{grid-template-columns:minmax(0,1fr);gap:28px;}}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item .faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:18px 20px;background:transparent;border:0;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;position:relative;
}
.faq-item .faq-q::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;background:transparent;transition:background .2s ease;}
.faq-item .faq-q .arrow{width:18px;height:18px;color:var(--muted);transition:transform .2s ease;flex:0 0 18px;}
.faq-item .faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-item .faq-a p{margin:0;padding:0 20px 20px;font-size:15px;color:var(--muted);line-height:1.8;}
.faq-item.open{border-color:rgba(90,52,232,.24);box-shadow:var(--shadow-2);}
.faq-item.open .faq-q{color:var(--brand);}
.faq-item.open .faq-q::before{background:var(--brand);}
.faq-item.open .faq-q .arrow{transform:rotate(180deg);color:var(--brand);}
.faq-item.open .faq-a{max-height:320px;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,#F3F0FF 0%,#EFEBFF 55%,#E4FBF6 100%);
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,1rem + .8vw,28px);margin-bottom:10px;}
.cta-band p{margin:0;color:var(--muted);font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
@media (max-width:575.98px){.cta-band{padding:28px 20px;}.cta-actions{width:100%;}.cta-actions .btn{width:100%;}}

/* ---------- Footer ---------- */
.site-footer{background:#16182C;color:#B9BDD0;margin-top:88px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
@media (max-width:991.98px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:minmax(0,1fr);}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;}
.footer-brand .brand-mark svg{width:20px;height:20px;}
.footer-desc{font-size:14px;line-height:1.8;color:#B9BDD0;margin:0;max-width:320px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#B9BDD0;transition:color .2s ease,transform .2s ease;}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:#8B90A6;
}
@media (max-width:1199.98px){
  .main-nav a{padding:10px 9px;font-size:14px;}
  .nav-search input{width:110px;}
}
@media (max-width:991.98px){
  .main-nav,.header-actions .nav-search,.header-actions .btn-primary{display:none;}
  .nav-toggle{display:flex;}
  .brand-full{display:none;}
  .brand-short{display:inline;}
  .section{padding:48px 0;}
  .cta-band{margin-top:8px;}
}
@media (max-width:575.98px){
  body{font-size:16px;}
  .header-inner{min-height:64px;gap:12px;}
  .page-hero{padding:40px 0 36px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --brand:#5A34E8;
  --brand-dark:#3E1FB0;
  --brand-soft:#EFEBFF;
  --brand-accent:#12D6B4;
  --brand-accent-soft:#E4FBF6;
  --brand-accent-dark:#0B8E78;
  --accent-orange:#FF7A45;
  --ink:#16182C;
  --ink-2:#3A3F52;
  --muted:#62677E;
  --disabled:#9AA0B4;
  --bg:#F5F6FB;
  --surface:#FFFFFF;
  --line:#E6E8F2;
  --line-soft:#C7CBDD;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(22,24,44,.06);
  --shadow-2:0 8px 24px rgba(22,24,44,.08);
  --shadow-3:0 16px 40px rgba(90,52,232,.14);
  --space-1:4px;
  --space-2:8px;
  --space-3:12px;
  --space-4:16px;
  --space-5:24px;
  --space-6:32px;
  --space-7:48px;
  --space-8:88px;
  --container:1200px;
}

*,
*::before,
*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;}

body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  font-feature-settings:"tnum";
}

h1,h2,h3,h4{
  margin:0;
  color:var(--ink);
  font-weight:600;
  letter-spacing:-0.01em;
}

h1{font-size:clamp(30px,1.4rem + 2.4vw,52px);line-height:1.18;font-weight:700;}
h2{font-size:clamp(22px,1.1rem + 1vw,32px);line-height:1.32;}
h3{font-size:20px;line-height:1.45;}
p{margin:0;}

a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,transform .2s ease;}
a:hover{color:var(--brand-dark);}

img{max-width:100%;display:block;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}

:focus-visible{outline:3px solid rgba(90,52,232,.35);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){
  .container{max-width:1320px;}
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-2);}

.header-inner{
  display:flex;
  align-items:center;
  gap:16px;
  height:74px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--ink);
  font-weight:700;
  font-size:17px;
  letter-spacing:-0.01em;
}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:11px;
  background:var(--brand-soft);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
}
.brand-mark svg{width:21px;height:21px;}

.main-nav{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:12px;
  flex:1 1 auto;
  min-width:0;
}
.main-nav a{
  position:relative;
  padding:9px 13px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:var(--radius-sm);
  white-space:nowrap;
}
.main-nav a:hover{color:var(--brand);background:var(--brand-soft);}
.main-nav a.active{color:var(--brand);font-weight:600;}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:13px;
  right:13px;
  bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex-shrink:0;
}

.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  background:#F1F2F8;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  padding:8px 15px;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{
  background:#FFFFFF;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(90,52,232,.12);
}
.nav-search svg{width:16px;height:16px;color:var(--disabled);flex-shrink:0;}
.nav-search input{
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
  width:172px;
  color:var(--ink);
}
.nav-search input::placeholder{color:var(--disabled);}

.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:var(--brand);
  color:#FFFFFF;
  border:1px solid var(--brand);
  border-radius:var(--radius-md);
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:background-color .2s ease,transform .15s ease,box-shadow .2s ease;
}
.btn-brand:hover{
  background:var(--brand-dark);
  border-color:var(--brand-dark);
  color:#FFFFFF;
  transform:translateY(-1px);
  box-shadow:var(--shadow-3);
}
.btn-brand:active{transform:translateY(1px);}

.btn-brand-sm{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--brand);
  color:#FFFFFF;
  border-radius:var(--radius-md);
  padding:10px 18px;
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:background-color .2s ease,transform .15s ease;
}
.btn-brand-sm:hover{background:var(--brand-dark);color:#FFFFFF;transform:translateY(-1px);}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:#FFFFFF;
  color:var(--brand);
  border:1px solid var(--brand);
  border-radius:var(--radius-md);
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  transition:background-color .2s ease,transform .15s ease;
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}

.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  align-items:center;
  justify-content:center;
  background:#F1F2F8;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  color:var(--ink);
  cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;}

.mobile-panel{
  border-top:1px solid var(--line);
  background:#FFFFFF;
}
.mobile-panel .container{padding-top:16px;padding-bottom:22px;}
.mobile-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:16px;}
.mobile-nav a{
  padding:12px 14px;
  border-radius:var(--radius-md);
  color:var(--ink-2);
  font-size:15px;
  border:1px solid transparent;
}
.mobile-nav a:hover{background:var(--brand-soft);color:var(--brand);}
.mobile-nav a.active{
  color:var(--brand);
  font-weight:600;
  background:var(--brand-soft);
  border-color:rgba(90,52,232,.18);
}
.mobile-search{width:100%;margin-bottom:14px;}
.mobile-search input{width:100%;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  background-image:linear-gradient(102deg,rgba(22,24,44,.86) 0%,rgba(62,31,176,.74) 58%,rgba(22,24,44,.58) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:#FFFFFF;
  padding:56px 0 52px;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-60px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(18,214,180,.28),rgba(18,214,180,0) 70%);
  pointer-events:none;
}
.page-hero-inner{position:relative;z-index:2;max-width:860px;}

.breadcrumb-nav{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.75);
  margin-bottom:16px;
}
.breadcrumb-nav a{color:rgba(255,255,255,.82);}
.breadcrumb-nav a:hover{color:#FFFFFF;}
.breadcrumb-nav .sep{color:rgba(255,255,255,.45);}
.breadcrumb-nav .current{color:#FFFFFF;font-weight:500;}

.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border-radius:var(--radius-pill);
  padding:5px 13px;
  font-size:13px;
  font-weight:500;
  letter-spacing:.02em;
}
.pill-brand{background:var(--brand-soft);color:var(--brand);}
.pill-accent{background:var(--brand-accent-soft);color:var(--brand-accent-dark);}
.pill-dark{background:rgba(255,255,255,.16);color:#FFFFFF;border:1px solid rgba(255,255,255,.26);}

.page-hero h1{
  color:#FFFFFF;
  margin:14px 0 16px;
  max-width:820px;
}
.page-hero-sub{
  font-size:17px;
  color:rgba(255,255,255,.86);
  max-width:680px;
}
.page-hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:22px;
  font-size:14px;
  color:rgba(255,255,255,.72);
}
.page-hero-meta .dot{color:rgba(255,255,255,.4);}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;}

.card-soft{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:24px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card-soft:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(90,52,232,.24);
}

/* ---------- 准备区 ---------- */
.prep-figure{
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  background:#FFFFFF;
}
.prep-figure img{
  width:100%;
  height:100%;
  min-height:280px;
  object-fit:cover;
  border-radius:var(--radius-lg);
  transition:transform .22s ease;
}
.prep-figure:hover img{transform:scale(1.03);}
.prep-figure-caption{
  padding:14px 18px;
  font-size:13px;
  color:var(--muted);
  border-top:1px solid var(--line);
}

.check-list{display:flex;flex-direction:column;gap:18px;margin-top:6px;}
.check-item{display:flex;gap:14px;align-items:flex-start;}
.check-icon{
  flex-shrink:0;
  width:26px;
  height:26px;
  border-radius:9px;
  background:var(--brand-soft);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-top:4px;
}
.check-icon svg{width:15px;height:15px;}
.check-item h3{font-size:17px;margin-bottom:4px;}
.check-item p{font-size:15px;color:var(--muted);line-height:1.8;}

.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:8px 16px;
  font-size:14px;
  color:var(--ink-2);
  box-shadow:var(--shadow-1);
}
.chip svg{width:15px;height:15px;color:var(--brand-accent-dark);}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline-item{position:relative;padding-left:58px;padding-bottom:30px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";
  position:absolute;
  left:14px;
  top:32px;
  bottom:0;
  width:2px;
  background:var(--line);
}
.timeline-item:last-child::before{display:none;}
.timeline-dot{
  position:absolute;
  left:0;
  top:6px;
  width:29px;
  height:29px;
  border-radius:50%;
  background:var(--brand);
  color:#FFFFFF;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:11px;
  font-weight:700;
  letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(90,52,232,.28);
  z-index:2;
}
.timeline-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:24px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.timeline-body:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  border-color:rgba(90,52,232,.24);
}
.timeline-body h3{margin-bottom:10px;}
.timeline-body p{font-size:16px;color:var(--ink-2);}

.tip-block{
  display:flex;
  gap:12px;
  align-items:flex-start;
  margin-top:16px;
  padding:14px 16px;
  background:var(--brand-accent-soft);
  border-left:4px solid var(--brand-accent);
  border-radius:var(--radius-md);
}
.tip-block svg{width:18px;height:18px;color:var(--brand-accent-dark);flex-shrink:0;margin-top:4px;}
.tip-block p{font-size:14px;color:#0B5D50;line-height:1.75;}

/* ---------- 目录 ---------- */
.toc-wrap{margin-top:8px;}
.toc-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:22px;
}
.toc-title{
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;gap:4px;}
.toc-list a{
  position:relative;
  display:block;
  padding:9px 12px 9px 16px;
  border-radius:var(--radius-md);
  font-size:14px;
  color:var(--muted);
  border-left:3px solid transparent;
}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand);}
.toc-list a.active{
  background:var(--brand-soft);
  color:var(--brand);
  font-weight:600;
  border-left-color:var(--brand);
}
.toc-help{
  display:block;
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:14px;
  color:var(--brand);
}

@media (min-width:992px){
  .toc-wrap{position:sticky;top:96px;}
}

/* ---------- 疑问入口 ---------- */
.qa-list{display:flex;flex-direction:column;gap:12px;}
.qa-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:18px 22px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.qa-item:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  border-color:rgba(90,52,232,.24);
}
.qa-item span{color:var(--ink);font-size:16px;font-weight:500;}
.qa-item .qa-arrow{color:var(--brand);flex-shrink:0;transition:transform .2s ease;}
.qa-item:hover .qa-arrow{transform:translateX(4px);}
.qa-item svg{width:18px;height:18px;}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 88px;}
.cta-card{
  background:var(--brand-soft);
  border:1px solid rgba(90,52,232,.16);
  border-radius:24px;
  padding:40px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.cta-text{max-width:560px;}
.cta-text h2{font-size:clamp(20px,1rem + .8vw,26px);margin-bottom:12px;}
.cta-text p{color:var(--muted);font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:#B9BDD0;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#FFFFFF;
  font-size:17px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-brand .brand-mark{
  background:rgba(255,255,255,.1);
  color:var(--brand-accent);
}
.footer-desc{
  font-size:14px;
  color:#B9BDD0;
  line-height:1.85;
  max-width:320px;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#FFFFFF;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:#B9BDD0;
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:#FFFFFF;transform:translateX(2px);}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 28px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:#8E93A8;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .main-nav a{padding:9px 10px;font-size:14px;}
  .nav-search input{width:130px;}
}
@media (max-width:991px){
  .main-nav,
  .header-actions .nav-search,
  .header-actions .btn-brand-sm{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:66px;}
  .brand-text{font-size:16px;}
  .section{padding:64px 0;}
  .section-tight{padding:48px 0;}
  .page-hero{padding:44px 0 40px;}
  .cta-card{padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .section-tight{padding:40px 0;}
  .card-soft{padding:18px;}
  .timeline-body{padding:18px;}
  .timeline-item{padding-left:48px;}
  .timeline-dot{width:26px;height:26px;font-size:10px;}
  .timeline-item::before{left:12px;}
  .prep-figure img{min-height:200px;}
  .cta-section{padding:0 0 56px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,
  .cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:519px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:15px;}
  .page-hero-meta{font-size:13px;}
  .qa-item{padding:16px;flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --brand:#5A34E8;
  --brand-dark:#3E1FB0;
  --brand-soft:#EFEBFF;
  --brand-accent:#12D6B4;
  --accent-soft:#E4FBF6;
  --orange:#FF7A45;
  --ink:#16182C;
  --ink-2:#3A3F52;
  --muted:#62677E;
  --disabled:#9AA0B4;
  --bg:#F5F6FB;
  --surface:#FFFFFF;
  --line:#E6E8F2;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(22,24,44,.06);
  --shadow-2:0 8px 24px rgba(22,24,44,.08);
  --shadow-3:0 16px 40px rgba(90,52,232,.14);
  --space-1:4px;
  --space-2:8px;
  --space-3:12px;
  --space-4:16px;
  --space-5:24px;
  --space-6:32px;
  --space-7:48px;
  --space-8:88px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:600;letter-spacing:-.01em;}
h1{font-size:clamp(30px,1.4rem + 2.4vw,52px);line-height:1.18;font-weight:700;}
h2{font-size:clamp(22px,1.1rem + 1vw,32px);line-height:1.3;}
h3{font-size:20px;line-height:1.45;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
img{max-width:100%;height:auto;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
:focus-visible{outline:3px solid rgba(90,52,232,.32);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){
  .container{max-width:1320px;}
}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-2);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  white-space:nowrap;
}
.brand:hover{color:var(--brand-dark);}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--brand) 0%,#7A5BF2 100%);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.brand-mark svg{width:21px;height:21px;}
.main-nav{
  display:flex;
  align-items:center;
  gap:22px;
  margin-left:8px;
}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:6px 2px;
  font-size:15px;
  color:var(--ink-2);
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transition:width .22s ease;
}
.main-nav a:hover{color:var(--brand);}
.main-nav a:hover::after{width:60%;}
.main-nav a.active{color:var(--brand);font-weight:600;}
.main-nav a.active::after{width:60%;}
.header-tools{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:auto;
}
.header-search{
  display:flex;
  align-items:center;
  gap:8px;
  background:#F1F2F8;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  padding:8px 16px;
  min-width:210px;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.header-search svg{width:17px;height:17px;color:var(--muted);flex:0 0 auto;}
.header-search input{
  border:0;
  background:transparent;
  outline:none;
  width:100%;
  font-size:14px;
  color:var(--ink);
}
.header-search input::placeholder{color:var(--disabled);}
.header-search:focus-within{
  background:#fff;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(90,52,232,.12);
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:#fff;
  color:var(--ink);
  margin-left:auto;
  cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-md);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn svg{width:18px;height:18px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(90,52,232,.22);}
.btn-primary:hover{background:#4E2BD3;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(90,52,232,.26);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(90,52,232,.2);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.link-more svg{width:16px;height:16px;transition:transform .2s ease;}
.link-more:hover svg{transform:translateX(4px);}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  padding:112px 0 76px;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(62,31,176,.9) 0%,rgba(90,52,232,.76) 48%,rgba(22,24,44,.6) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb-nav{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.76);
  margin-bottom:20px;
}
.breadcrumb-nav a{color:rgba(255,255,255,.86);}
.breadcrumb-nav a:hover{color:#fff;}
.breadcrumb-nav .sep{color:rgba(255,255,255,.45);}
.breadcrumb-nav .current{color:#fff;font-weight:600;}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:var(--radius-pill);
  font-size:13px;
  font-weight:500;
  letter-spacing:.02em;
  background:var(--brand-soft);
  color:var(--brand-dark);
}
.pill-on-dark{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.28);}
.page-hero h1{color:#fff;margin:16px 0 18px;max-width:900px;}
.page-hero .lead{
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.88);
  max-width:760px;
  margin-bottom:26px;
}
.hero-chips{display:flex;flex-wrap:wrap;gap:12px;}
.hero-chips span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  font-size:14px;
  color:#fff;
}
.hero-chips svg{width:16px;height:16px;color:var(--brand-accent);}

/* ============ 区块通用 ============ */
.section{padding:var(--space-8) 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:var(--space-6);}
.section-head.between{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.section-head p{color:var(--muted);font-size:15px;max-width:720px;margin-top:10px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--brand);
  text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:var(--brand);}

/* ============ 通栏配图 ============ */
.banner-figure{
  margin:0;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  border:1px solid var(--line);
  background:#fff;
}
.banner-figure img{
  width:100%;
  aspect-ratio:16 / 6;
  object-fit:cover;
}
.banner-caption{
  padding:18px 24px;
  font-size:14px;
  color:var(--muted);
  background:#fff;
  display:flex;
  align-items:center;
  gap:10px;
  border-top:1px solid var(--line);
}
.banner-caption svg{width:18px;height:18px;color:var(--brand-accent);flex:0 0 auto;}

/* ============ 功能对照表 ============ */
.table-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;}
table.feature-table{
  width:100%;
  min-width:760px;
  border-collapse:collapse;
  margin:0;
}
table.feature-table thead th{
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-size:14px;
  font-weight:600;
  text-align:left;
  padding:16px 22px;
  border:0;
  white-space:nowrap;
}
table.feature-table tbody td{
  padding:18px 22px;
  font-size:15px;
  color:var(--ink-2);
  border:0;
  border-top:1px solid var(--line);
  vertical-align:top;
}
table.feature-table tbody tr{transition:background-color .18s ease;}
table.feature-table tbody tr:hover{background:#F8F7FF;}
table.feature-table tbody td:first-child{color:var(--ink);font-weight:600;}
table.feature-table .tag-cell{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  background:var(--accent-soft);
  color:#0B8D77;
  font-size:13px;
  font-weight:500;
}
.table-note{
  padding:16px 22px;
  font-size:14px;
  color:var(--muted);
  background:#FAFBFF;
  border-top:1px solid var(--line);
}

/* ============ 功能卡片 ============ */
.feature-card{
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:28px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feature-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(90,52,232,.24);
}
.feature-card .icon-box{
  width:48px;
  height:48px;
  border-radius:14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--brand-soft);
  color:var(--brand);
  margin-bottom:18px;
}
.feature-card .icon-box.accent{background:var(--accent-soft);color:#0B8D77;}
.feature-card h3{margin-bottom:10px;}
.feature-card p{font-size:15px;color:var(--muted);line-height:1.8;}
.feature-list{margin-top:18px;display:grid;gap:10px;}
.feature-list li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.7;
}
.feature-list li svg{width:18px;height:18px;color:var(--brand-accent);flex:0 0 auto;margin-top:3px;}
.feature-card.wide{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
  align-items:center;
  padding:34px;
}
.feature-card.wide .wide-media{
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--line);
}
.feature-card.wide .wide-media img{
  width:100%;
  aspect-ratio:16 / 10;
  object-fit:cover;
  transition:transform .22s ease;
}
.feature-card.wide:hover .wide-media img{transform:scale(1.03);}

/* ============ 数据小带（浅色） ============ */
.stat-band{
  background:linear-gradient(0deg,#F1EEFF 0%,#F8F7FF 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.stat-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px 24px;
  box-shadow:var(--shadow-1);
}
.stat-item .stat-num{
  font-size:40px;
  font-weight:700;
  line-height:1.1;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  margin-bottom:8px;
}
.stat-item .stat-num small{font-size:20px;font-weight:600;margin-left:4px;}
.stat-item h4{font-size:16px;margin-bottom:8px;}
.stat-item p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ============ CTA ============ */
.cta-block{
  background:linear-gradient(120deg,#EFEBFF 0%,#F7F5FF 55%,#E9FBF7 100%);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  box-shadow:var(--shadow-1);
}
.cta-block h2{margin-bottom:10px;}
.cta-block p{color:var(--muted);font-size:15px;max-width:600px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:#B9BDD0;
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:700;
  font-size:17px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--brand) 0%,#7A5BF2 100%);}
.footer-desc{font-size:14px;line-height:1.8;color:#B9BDD0;max-width:340px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:#B9BDD0;
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:22px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8F94AD;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .header-search{min-width:160px;}
  .main-nav{gap:16px;}
}
@media (max-width:991.98px){
  .header-inner{flex-wrap:wrap;gap:12px;padding:12px 0;min-height:0;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    display:none;
    order:3;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin-left:0;
    padding:8px 0 4px;
    border-top:1px solid var(--line);
  }
  .site-header.nav-open .main-nav{display:flex;}
  .main-nav a{padding:12px 4px;border-bottom:1px solid var(--line);}
  .main-nav a::after{display:none;}
  .main-nav a.active{color:var(--brand);}
  .header-tools{
    display:none;
    order:4;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:12px;
    padding-bottom:16px;
    margin-left:0;
  }
  .site-header.nav-open .header-tools{display:flex;}
  .header-search{width:100%;min-width:0;}
  .page-hero{padding:76px 0 56px;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .feature-card.wide{grid-template-columns:1fr;padding:26px;}
  .stat-grid{grid-template-columns:1fr;gap:16px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-block{padding:32px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .page-hero{padding:64px 0 48px;}
  .page-hero .lead{font-size:16px;}
  .section{padding:48px 0;}
  .section-tight{padding:44px 0;}
  .feature-card{padding:22px;}
  .feature-card.wide{padding:22px;gap:22px;}
  .banner-figure img{aspect-ratio:16 / 10;}
  .table-note{padding:14px 18px;}
  table.feature-table thead th,
  table.feature-table tbody td{padding:14px 16px;}
  .stat-item{padding:22px 20px;}
  .cta-block{padding:26px;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .brand-text{font-size:15px;}
  .hero-chips span{font-size:13px;padding:7px 13px;}
  .stat-item .stat-num{font-size:34px;}
}

/* roulang page: category3 */
:root{
  --brand:#5A34E8;
  --brand-dark:#3E1FB0;
  --brand-soft:#EFEBFF;
  --brand-accent:#12D6B4;
  --accent-soft:#E4FBF6;
  --accent-deep:#0B8E77;
  --orange:#FF7A45;
  --ink:#16182C;
  --ink-2:#3A3F52;
  --muted:#62677E;
  --disabled:#9AA0B4;
  --bg:#F5F6FB;
  --surface:#FFFFFF;
  --line:#E6E8F2;
  --line-soft:#F1F2F8;
  --radius-sm:10px;
  --radius-md:12px;
  --radius-lg:18px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(22,24,44,.06);
  --shadow-2:0 8px 24px rgba(22,24,44,.08);
  --shadow-3:0 16px 40px rgba(90,52,232,.14);
  --space-1:4px;
  --space-2:8px;
  --space-3:12px;
  --space-4:16px;
  --space-5:24px;
  --space-6:32px;
  --space-7:48px;
  --space-8:64px;
  --space-9:88px;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,transform .2s ease}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1400px){
  .container{max-width:1320px}
}

h1{
  font-size:clamp(30px,1.4rem + 2.4vw,52px);
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
}
h2{
  font-size:clamp(22px,1.1rem + 1vw,32px);
  line-height:1.3;
  font-weight:600;
  color:var(--ink);
  letter-spacing:-.005em;
}
h3{
  font-size:20px;
  line-height:1.45;
  font-weight:600;
  color:var(--ink);
}
p{color:var(--ink-2)}
.lead-text{font-size:17px;line-height:1.85;color:var(--ink-2)}
.muted{color:var(--muted)}
.small{font-size:14px}

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--shadow-2)}
.header-inner{
  display:flex;
  align-items:center;
  gap:var(--space-5);
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:16px;
  color:var(--ink);
  white-space:nowrap;
  letter-spacing:-.01em;
}
.brand-mark{
  width:36px;height:36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-sm);
  background:var(--brand-soft);
  color:var(--brand);
  flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px}
.main-nav{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:var(--space-2);
  flex:1 1 auto;
}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:9px 11px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:8px;
}
.main-nav a:hover{color:var(--brand);background:var(--brand-soft)}
.main-nav a.active{color:var(--brand);font-weight:600}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:11px;
  right:40%;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.header-tools{
  display:flex;
  align-items:center;
  gap:var(--space-3);
  margin-left:auto;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  background:var(--line-soft);
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.nav-search svg{width:16px;height:16px;color:var(--muted);flex:0 0 auto}
.nav-search input{
  width:140px;
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
}
.nav-search input::placeholder{color:var(--disabled)}
.nav-search:focus-within{
  background:#fff;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(90,52,232,.12);
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  color:var(--ink);
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:currentColor;
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;border-radius:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:var(--space-4) 20px var(--space-5);
}
.mobile-panel.open{display:block}
.mobile-panel .mobile-links{display:flex;flex-direction:column;gap:2px;margin-bottom:var(--space-4)}
.mobile-panel .mobile-links a{
  padding:11px 12px;
  border-radius:var(--radius-sm);
  color:var(--ink-2);
  font-size:15px;
}
.mobile-panel .mobile-links a.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.mobile-panel .nav-search{width:100%;margin-bottom:var(--space-3)}
.mobile-panel .nav-search input{width:100%}

/* ============ Buttons ============ */
.btn-main,.btn-ghost,.btn-text{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-md);
  font-size:15px;
  font-weight:600;
  line-height:1;
  padding:13px 24px;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:var(--shadow-1)}
.btn-main:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-3);color:#fff}
.btn-main:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{
  padding:6px 0;
  color:var(--brand);
  font-weight:600;
  background:none;
}
.btn-text svg{width:16px;height:16px;transition:transform .2s ease}
.btn-text:hover svg{transform:translateX(4px)}
.btn-sm{padding:10px 18px;font-size:14px}

/* ============ Badges ============ */
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  font-size:13px;
  font-weight:500;
  letter-spacing:.02em;
  background:var(--brand-soft);
  color:var(--brand);
}
.badge-pill.accent{background:var(--accent-soft);color:var(--accent-deep)}
.badge-pill.hollow{background:#fff;color:var(--muted);border:1px solid var(--line)}

/* ============ Breadcrumb ============ */
.breadcrumb-row{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--muted);
  flex-wrap:wrap;
}
.breadcrumb-row a{color:var(--muted)}
.breadcrumb-row a:hover{color:var(--brand)}
.breadcrumb-row .sep{color:#C7CBDD}
.breadcrumb-row .current{color:var(--brand);font-weight:600}
.page-hero .breadcrumb-row,
.page-hero .breadcrumb-row a,
.page-hero .breadcrumb-row .sep{color:rgba(255,255,255,.78)}
.page-hero .breadcrumb-row .current{color:#fff}
.page-hero .breadcrumb-row a:hover{color:#fff}

/* ============ Page hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  color:#fff;
  padding:var(--space-7) 0 var(--space-8);
  background-image:linear-gradient(115deg,rgba(45,22,128,.92) 0%,rgba(90,52,232,.72) 62%,rgba(18,214,180,.42) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:52px 52px;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.page-hero h1{color:#fff;margin:var(--space-4) 0 var(--space-4);max-width:900px}
.page-hero .hero-summary{
  max-width:760px;
  color:rgba(255,255,255,.9);
  font-size:17px;
  line-height:1.85;
}
.hero-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:var(--space-5);
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;
  font-size:14px;
  backdrop-filter:blur(2px);
}
.chip svg{width:15px;height:15px;color:var(--brand-accent)}

/* ============ Sections ============ */
.section{padding:var(--space-9) 0}
.section.tight{padding:var(--space-8) 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:var(--space-6)}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:500;
  letter-spacing:.08em;
  color:var(--brand);
  text-transform:uppercase;
  margin-bottom:var(--space-3);
}
.section-head h2{margin-bottom:var(--space-3)}
.section-head p{max-width:760px}
.section-head.split{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:var(--space-5);
  flex-wrap:wrap;
}

/* ============ Cards ============ */
.card-surface{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:var(--space-5);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card-surface:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(90,52,232,.24);
}

/* ============ Security checklist ============ */
.check-list{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.check-item{
  display:flex;
  gap:var(--space-4);
  padding:var(--space-5) var(--space-5);
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.check-item:last-child{border-bottom:0}
.check-item:hover{background:#FBFAFF}
.check-mark{
  flex:0 0 auto;
  width:24px;height:24px;
  margin-top:4px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:var(--accent-soft);
  color:var(--accent-deep);
}
.check-mark svg{width:14px;height:14px}
.check-body h3{font-size:17px;margin-bottom:4px}
.check-body p{font-size:15px;line-height:1.75;color:var(--muted)}

/* ============ Tip block ============ */
.tip-block{
  background:var(--accent-soft);
  border-left:4px solid var(--brand-accent);
  border-radius:0 var(--radius-lg) var(--radius-lg) 0;
  padding:var(--space-5) var(--space-5) var(--space-5) var(--space-6);
}
.tip-block h3{font-size:18px;margin-bottom:var(--space-3)}
.tip-block ul{display:flex;flex-direction:column;gap:10px}
.tip-block li{
  display:flex;
  gap:10px;
  font-size:15px;
  line-height:1.8;
  color:#12564a;
}
.tip-block li::before{
  content:"";
  flex:0 0 auto;
  width:6px;height:6px;
  margin-top:12px;
  border-radius:50%;
  background:var(--brand-accent);
}

/* ============ Numbered list ============ */
.num-list{counter-reset:num;display:flex;flex-direction:column;gap:var(--space-4)}
.num-list li{
  counter-increment:num;
  display:flex;
  gap:var(--space-4);
  align-items:flex-start;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
}
.num-list li::before{
  content:counter(num,decimal-leading-zero);
  flex:0 0 auto;
  width:42px;height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-sm);
  background:var(--brand-soft);
  color:var(--brand);
  font-weight:700;
  font-size:15px;
  margin-top:2px;
}
.num-list li strong{display:block;color:var(--ink);font-size:16px;margin-bottom:2px}

/* ============ Steps ============ */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--space-5);
}
.step-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:var(--space-5);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(90,52,232,.24)}
.step-num{
  font-size:32px;
  font-weight:700;
  line-height:1;
  color:var(--brand-soft);
  -webkit-text-stroke:1px rgba(90,52,232,.5);
  margin-bottom:var(--space-4);
  display:block;
}
.step-card h3{font-size:18px;margin-bottom:var(--space-2)}
.step-card p{font-size:15px;line-height:1.75;color:var(--muted)}

/* ============ Figure ============ */
.figure-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:var(--space-4);
  box-shadow:var(--shadow-1);
}
.figure-card img{width:100%;height:230px;object-fit:cover;border-radius:var(--radius-img)}
.figure-card figcaption{font-size:13px;color:var(--muted);margin-top:10px;text-align:center}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:transparent;
  transition:background-color .2s ease;
}
.faq-item.open::before{background:var(--brand)}
.faq-item:hover{border-color:rgba(90,52,232,.24)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--space-4);
  padding:18px var(--space-5);
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  transition:color .2s ease;
}
.faq-item.open .faq-q{color:var(--brand)}
.faq-toggle{
  flex:0 0 auto;
  width:26px;height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:var(--line-soft);
  color:var(--muted);
  position:relative;
  transition:background-color .2s ease,color .2s ease;
}
.faq-toggle::before,
.faq-toggle::after{
  content:"";
  position:absolute;
  background:currentColor;
  border-radius:2px;
}
.faq-toggle::before{width:11px;height:2px}
.faq-toggle::after{width:2px;height:11px;transition:transform .2s ease,opacity .2s ease}
.faq-item.open .faq-toggle{background:var(--brand-soft);color:var(--brand)}
.faq-item.open .faq-toggle::after{transform:scaleY(0);opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .2s ease;
}
.faq-a-inner{
  padding:0 var(--space-5) var(--space-5);
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ============ Support card ============ */
.support-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);
  padding:var(--space-6);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--space-6);
  flex-wrap:wrap;
}
.support-copy{max-width:640px}
.support-copy h3{margin-bottom:var(--space-3)}
.support-copy p{font-size:15px;line-height:1.8;color:var(--muted)}
.support-actions{display:flex;gap:var(--space-3);flex-wrap:wrap}

/* ============ CTA ============ */
.cta-band{
  background:#F3F0FF;
  border-top:1px solid #E4DDFF;
  border-bottom:1px solid #E4DDFF;
  padding:var(--space-8) 0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--space-6);
  flex-wrap:wrap;
}
.cta-inner h2{margin-bottom:var(--space-2)}
.cta-inner p{font-size:16px;color:var(--muted);max-width:620px}
.cta-actions{display:flex;gap:var(--space-3);flex-wrap:wrap}

/* ============ Footer ============ */
.site-footer{
  background:#16182C;
  color:#B9BDD0;
  padding:var(--space-8) 0 var(--space-5);
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:var(--space-6);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:700;
  font-size:16px;
  margin-bottom:var(--space-4);
}
.footer-brand .brand-mark{background:rgba(90,52,232,.28);color:#C7B9FF}
.footer-desc{font-size:14px;line-height:1.8;color:#B9BDD0;max-width:320px}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:var(--space-4);
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  font-size:14px;
  color:#B9BDD0;
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  margin-top:var(--space-7);
  padding-top:var(--space-4);
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  justify-content:space-between;
  gap:var(--space-4);
  flex-wrap:wrap;
  font-size:13px;
  color:#8E93AC;
}

/* ============ Responsive ============ */
@media (max-width:1199px){
  .nav-search input{width:110px}
  .main-nav a{padding:9px 8px;font-size:14px}
}
@media (max-width:991px){
  .site-header .nav-search,
  .site-header .main-nav,
  .site-header .header-tools .btn-main{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{min-height:64px;gap:var(--space-3)}
  .brand{font-size:15px}
  .section{padding:var(--space-8) 0}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .support-card{padding:var(--space-5)}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:var(--space-7) 0}
  .page-hero{padding:var(--space-6) 0 var(--space-7)}
  .steps-grid{grid-template-columns:1fr}
  .check-item{padding:var(--space-4);gap:var(--space-3)}
  .num-list li{font-size:15px}
  .num-list li::before{width:36px;height:36px;font-size:14px}
  .btn-main,.btn-ghost{padding:12px 20px}
  .support-actions{width:100%}
  .support-actions .btn-main,.support-actions .btn-ghost{flex:1 1 auto;justify-content:center}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1 1 auto;justify-content:center}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .footer-grid{grid-template-columns:1fr;gap:var(--space-5)}
  .figure-card img{height:190px}
  .page-hero h1{font-size:26px}
  .brand-text{display:none}
  .brand-text.short{display:inline}
}
@media (min-width:576px){
  .brand-text.short{display:none}
}
@media (max-width:991px){
  .brand-text.full{display:none}
  .brand-text.short{display:inline}
}

/* roulang page: category4 */
:root{
  --brand:#5A34E8;
  --brand-dark:#3E1FB0;
  --brand-hover:#4B28D6;
  --brand-soft:#EFEBFF;
  --brand-accent:#12D6B4;
  --brand-accent-soft:#E4FBF6;
  --brand-accent-deep:#0B8E77;
  --spot:#FF7A45;
  --ink:#16182C;
  --ink-2:#3A3F52;
  --muted:#62677E;
  --disabled:#9AA0B4;
  --bg:#F5F6FB;
  --surface:#FFFFFF;
  --surface-2:#F8F9FD;
  --line:#E6E8F2;
  --line-strong:#C7CBDD;
  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(22,24,44,.06);
  --shadow-2:0 8px 24px rgba(22,24,44,.08);
  --shadow-3:0 16px 40px rgba(90,52,232,.14);
  --space-1:4px;
  --space-2:8px;
  --space-3:12px;
  --space-4:16px;
  --space-5:24px;
  --space-6:32px;
  --space-7:48px;
  --space-8:64px;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:1.2em;}
:focus-visible{outline:3px solid rgba(90,52,232,.35);outline-offset:2px;border-radius:8px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){
  .container{max-width:1320px;}
}
@media (min-width:1200px){
  .container{max-width:var(--container);}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease;
  backdrop-filter:saturate(150%) blur(6px);
}
.site-header.scrolled{box-shadow:var(--shadow-2);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.01em;
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  flex:none;
}
.brand-mark svg{width:21px;height:21px;}
.main-nav{
  display:flex;
  align-items:center;
  gap:26px;
  height:72px;
  margin:0 auto;
}
.main-nav a{
  position:relative;
  display:flex;
  align-items:center;
  height:72px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:20%;
  bottom:0;
  width:60%;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .22s ease;
}
.main-nav a:hover{color:var(--brand);}
.main-nav a:hover::after,
.main-nav a.active::after{transform:scaleX(1);}
.main-nav a.active{color:var(--brand);font-weight:600;}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:none;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  background:#F1F2F8;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  padding:8px 14px;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{
  background:#fff;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(90,52,232,.12);
}
.nav-search svg{width:16px;height:16px;color:var(--muted);flex:none;}
.nav-search input{
  border:0;
  background:transparent;
  outline:none;
  width:132px;
  font-size:14px;
  color:var(--ink);
}
.nav-search input::placeholder{color:var(--disabled);}

.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border:1px solid transparent;
  border-radius:12px;
  background:var(--brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-brand:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(90,52,232,.26);}
.btn-brand:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border:1px solid var(--brand);
  border-radius:12px;
  background:#fff;
  color:var(--brand);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-size:15px;
  font-weight:600;
}
.btn-text svg{width:16px;height:16px;transition:transform .2s ease;}
.btn-text:hover svg{transform:translateX(4px);}
.btn-block{width:100%;}

.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  color:var(--ink);
}
.nav-toggle svg{width:20px;height:20px;}

.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  box-shadow:var(--shadow-2);
}
.mobile-panel.open{display:block;}
.mobile-panel-inner{padding:20px 0 24px;}
.mobile-search{
  display:flex;
  align-items:center;
  gap:10px;
  background:#F1F2F8;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:10px 16px;
  margin-bottom:16px;
}
.mobile-search svg{width:16px;height:16px;color:var(--muted);flex:none;}
.mobile-search input{border:0;background:transparent;outline:none;width:100%;font-size:15px;}
.mobile-nav{display:flex;flex-direction:column;margin-bottom:18px;}
.mobile-nav a{
  padding:12px 4px;
  font-size:15px;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-nav a.active{color:var(--brand);font-weight:600;}

@media (max-width:1180px){
  .nav-search{display:none;}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .header-actions .btn-brand{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{gap:16px;justify-content:space-between;}
}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:54px 0 78px;
  color:#fff;
  background-image:
    linear-gradient(115deg,rgba(62,31,176,.94) 0%,rgba(90,52,232,.80) 46%,rgba(22,24,44,.76) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  opacity:.55;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb-bar{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.78);
  margin-bottom:18px;
}
.breadcrumb-bar a{color:rgba(255,255,255,.78);}
.breadcrumb-bar a:hover{color:#fff;}
.breadcrumb-bar .sep{color:rgba(255,255,255,.42);}
.breadcrumb-bar .current{color:#fff;font-weight:600;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.24);
  font-size:13px;
  letter-spacing:.02em;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(30px,1.4rem + 2.4vw,50px);
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.01em;
  max-width:900px;
}
.page-hero .hero-sub{
  margin-top:18px;
  max-width:720px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.86);
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.hero-meta span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  font-size:13px;
  color:rgba(255,255,255,.9);
  font-variant-numeric:tabular-nums;
}

/* ============ 主体 ============ */
main{display:block;}
.section{padding:64px 0 0;}
.section:last-of-type{padding-bottom:0;}

.search-panel{
  position:relative;
  z-index:6;
  margin-top:-44px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);
  padding:24px;
}
.search-panel h2{
  font-size:19px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:6px;
}
.search-panel p{
  font-size:14px;
  color:var(--muted);
  margin-bottom:18px;
}
.search-row{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}
.search-field{
  flex:1 1 320px;
  display:flex;
  align-items:center;
  gap:10px;
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:12px;
  padding:12px 14px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-field:focus-within{
  background:#fff;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(90,52,232,.12);
}
.search-field svg{width:18px;height:18px;color:var(--muted);flex:none;}
.search-field input{
  border:0;
  background:transparent;
  outline:none;
  width:100%;
  font-size:16px;
}
.search-field input::placeholder{color:var(--disabled);}
.hot-words{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-top:16px;
  font-size:14px;
  color:var(--muted);
}
.hot-words a{
  padding:4px 12px;
  border-radius:var(--radius-pill);
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-size:13px;
  font-weight:500;
  transition:background .2s ease,color .2s ease;
}
.hot-words a:hover{background:var(--brand);color:#fff;}

.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:32px;
  align-items:start;
  margin-top:48px;
}
.faq-block + .faq-block{margin-top:44px;}
.faq-head{
  display:flex;
  align-items:baseline;
  gap:12px;
  margin-bottom:20px;
}
.faq-head h2{
  font-size:clamp(22px,1.1rem + 1vw,30px);
  font-weight:600;
  color:var(--ink);
  letter-spacing:-.01em;
}
.faq-head .count{
  font-size:13px;
  color:var(--brand-dark);
  background:var(--brand-soft);
  border-radius:var(--radius-pill);
  padding:3px 12px;
  font-weight:500;
  font-variant-numeric:tabular-nums;
}
.faq-group-note{
  font-size:14px;
  color:var(--muted);
  margin:-8px 0 18px;
}

.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.faq-item:hover{border-color:rgba(90,52,232,.28);box-shadow:var(--shadow-2);}
.faq-trigger{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
  transition:color .2s ease;
}
.faq-trigger::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--brand);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform .2s ease;
}
.faq-trigger:not(.collapsed){color:var(--brand);}
.faq-trigger:not(.collapsed)::before{transform:scaleY(1);}
.faq-icon{
  width:22px;
  height:22px;
  flex:none;
  color:var(--muted);
  transition:transform .22s ease,color .22s ease;
}
.faq-trigger:not(.collapsed) .faq-icon{transform:rotate(180deg);color:var(--brand);}
.faq-a{
  padding:0 22px 20px 22px;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
}
.faq-a .tip{
  display:block;
  margin-top:12px;
  padding:12px 14px;
  border-left:4px solid var(--brand-accent);
  border-radius:0 12px 12px 0;
  background:var(--brand-accent-soft);
  color:var(--brand-accent-deep);
  font-size:14px;
  line-height:1.75;
}

/* ============ 侧栏 ============ */
.side-col{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:24px;
}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:22px;
}
.side-card h2{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:12px;
}
.side-card p{
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
  margin-bottom:16px;
}
.side-card img{
  width:100%;
  height:150px;
  object-fit:cover;
  border-radius:var(--radius-md);
  margin-bottom:16px;
}
.side-figure{
  display:block;
  overflow:hidden;
  border-radius:var(--radius-md);
  margin-bottom:16px;
}
.side-figure img{margin-bottom:0;transition:transform .22s ease;}
.side-figure:hover img{transform:scale(1.03);}
.side-list{display:flex;flex-direction:column;gap:10px;}
.side-list a{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--ink-2);
  padding:10px 12px;
  border-radius:12px;
  background:var(--surface-2);
  border:1px solid var(--line);
  transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
}
.side-list a:hover{
  background:var(--brand-soft);
  border-color:rgba(90,52,232,.28);
  color:var(--brand-dark);
  transform:translateX(2px);
}
.side-list a svg{width:16px;height:16px;flex:none;color:var(--brand);}
.side-meta{
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:14px;
  color:var(--muted);
  margin-bottom:18px;
}
.side-meta div{display:flex;gap:8px;align-items:flex-start;}
.side-meta svg{width:16px;height:16px;flex:none;margin-top:3px;color:var(--brand);}
.side-meta strong{color:var(--ink);font-weight:600;}

/* ============ 相关入口 ============ */
.entries{margin-top:72px;}
.entries-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:28px;
}
.entries-head h2{
  font-size:clamp(22px,1.1rem + 1vw,30px);
  font-weight:600;
  color:var(--ink);
  letter-spacing:-.01em;
}
.entries-head p{
  font-size:15px;
  color:var(--muted);
  margin-top:8px;
  max-width:640px;
}
.entry-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.entry-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(90,52,232,.24);
}
.entry-card .thumb{
  height:170px;
  overflow:hidden;
}
.entry-card .thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .22s ease;
}
.entry-card:hover .thumb img{transform:scale(1.03);}
.entry-body{padding:22px;}
.entry-body .badge{
  display:inline-block;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  background:var(--brand-accent-soft);
  color:var(--brand-accent-deep);
  font-size:13px;
  font-weight:500;
  letter-spacing:.02em;
  margin-bottom:12px;
}
.entry-body h3{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:10px;
}
.entry-body p{
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
  margin-bottom:16px;
}

/* ============ CTA ============ */
.cta-band{
  margin-top:72px;
  background:var(--brand-soft);
  border:1px solid rgba(90,52,232,.16);
  border-radius:var(--radius-lg);
  padding:40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:clamp(22px,1.1rem + 1vw,30px);
  font-weight:600;
  color:var(--ink);
  letter-spacing:-.01em;
}
.cta-band p{
  margin-top:10px;
  font-size:16px;
  color:var(--brand-dark);
  max-width:660px;
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-actions .btn-ghost{background:transparent;}
.cta-actions .btn-ghost:hover{background:#fff;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;
  background:var(--ink);
  color:#B9BDD0;
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-brand .brand-mark{
  background:rgba(255,255,255,.08);
  color:var(--brand-accent);
}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:#9BA0B8;
  max-width:320px;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:#B9BDD0;
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:#fff;transform:translateX(-2px);}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.08);
  padding:24px 0;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8A90A8;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,1fr) 300px;gap:24px;}
  .entry-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
}
@media (max-width:991px){
  body{font-size:16px;}
  .layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .side-col{position:static;top:auto;}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-hero{padding:42px 0 70px;}
  .section{padding:56px 0 0;}
  .search-panel{margin-top:-34px;padding:20px;}
  .cta-band{padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .entry-grid{grid-template-columns:minmax(0,1fr);}
  .faq-trigger{font-size:16px;padding:16px 18px;}
  .faq-a{padding:0 18px 18px 18px;font-size:15px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,
  .cta-actions .btn-ghost{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
  .page-hero h1{font-size:28px;}
  .page-hero .hero-sub{font-size:15px;}
  .brand-text{font-size:15px;}
  .search-row .btn-brand{width:100%;}
  .side-card{padding:18px;}
  .hero-meta span{font-size:12px;}
}

/* roulang page: category5 */
:root{
  --brand:#5A34E8;
  --brand-dark:#3E1FB0;
  --brand-soft:#EFEBFF;
  --brand-tint:#F3F0FF;
  --brand-accent:#12D6B4;
  --brand-accent-soft:#E4FBF6;
  --brand-warm:#FF7A45;
  --ink:#16182C;
  --ink-2:#3A3F52;
  --muted:#62677E;
  --disabled:#9AA0B4;
  --bg:#F5F6FB;
  --surface:#FFFFFF;
  --line:#E6E8F2;
  --soft-bg:#F8F9FD;
  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(22,24,44,.06);
  --shadow-2:0 8px 24px rgba(22,24,44,.08);
  --shadow-3:0 16px 40px rgba(90,52,232,.14);
  --space-1:4px;
  --space-2:8px;
  --space-3:12px;
  --space-4:16px;
  --space-5:24px;
  --space-6:32px;
  --space-7:48px;
  --space-8:64px;
  --space-9:88px;
  --container:1200px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;letter-spacing:-.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(90,52,232,.35);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){
  .container{max-width:1320px;}
}

/* ---------- 按钮 ---------- */
.btn-brand,
.btn-ghost,
.btn-quiet{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  padding:12px 24px;
  border-radius:12px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-brand{background:var(--brand);color:#fff;box-shadow:var(--shadow-3);}
.btn-brand:hover{background:#4a26d6;color:#fff;transform:translateY(-1px);}
.btn-brand:active{transform:translateY(1px);box-shadow:var(--shadow-1);}
.btn-ghost{background:#fff;border-color:rgba(90,52,232,.45);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);}
.btn-quiet{background:transparent;color:var(--brand);padding:10px 4px;font-weight:600;}
.btn-quiet svg{transition:transform .2s ease;}
.btn-quiet:hover svg{transform:translateX(4px);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-2);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:74px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:17px;
  color:var(--ink);
  letter-spacing:-.01em;
  flex:0 0 auto;
}
.brand:hover{color:var(--brand-dark);}
.brand-mark{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--brand) 0%,#7A5AFF 100%);
  color:#fff;
  flex:0 0 auto;
}
.brand-mark svg{width:21px;height:21px;}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
  flex:1 1 auto;
}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  border-radius:10px;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:transparent;
  transition:background-color .2s ease;
}
.main-nav a:hover{color:var(--brand);background:var(--brand-soft);}
.main-nav a.active{color:var(--brand);font-weight:600;}
.main-nav a.active::after{background:var(--brand);left:12px;right:34%;}
.header-tools{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:6px;
  background:#F1F2F8;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  padding:6px 6px 6px 14px;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{
  background:#fff;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(90,52,232,.12);
}
.nav-search svg{width:17px;height:17px;color:var(--muted);flex:0 0 auto;}
.nav-search input{
  border:0;
  background:transparent;
  outline:none;
  width:132px;
  font-size:14px;
  padding:4px 0;
  color:var(--ink);
}
.nav-search input::placeholder{color:var(--disabled);}
.nav-search button{
  border:0;
  background:var(--brand);
  color:#fff;
  font-size:13px;
  font-weight:600;
  padding:7px 14px;
  border-radius:var(--radius-pill);
  cursor:pointer;
  transition:background-color .2s ease;
}
.nav-search button:hover{background:#4a26d6;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:#fff;
  border-radius:12px;
  cursor:pointer;
  color:var(--ink);
}
.nav-toggle svg{width:20px;height:20px;}
.mobile-panel{display:none;}
.mobile-panel.open{display:block;border-top:1px solid var(--line);background:#fff;}
.mobile-panel .inner{padding:16px 20px 24px;}
.mobile-panel .nav-search{width:100%;margin-bottom:14px;}
.mobile-panel .nav-search input{width:100%;}
.mobile-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:16px;}
.mobile-nav a{
  padding:11px 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--muted);
}
.mobile-nav a.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  padding:56px 0 52px;
  background-image:
    linear-gradient(100deg,rgba(22,24,44,.86) 0%,rgba(62,31,176,.72) 46%,rgba(90,52,232,.42) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-head::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.6;
  pointer-events:none;
}
.page-head .container{position:relative;z-index:2;}
.breadcrumb-nav{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.72);
  margin-bottom:18px;
}
.breadcrumb-nav a{color:rgba(255,255,255,.82);}
.breadcrumb-nav a:hover{color:#fff;}
.breadcrumb-nav .sep{color:rgba(255,255,255,.42);}
.breadcrumb-nav .current{color:#fff;font-weight:600;}
.page-head h1{
  color:#fff;
  font-size:clamp(28px,1.3rem + 1.8vw,44px);
  line-height:1.2;
  font-weight:700;
  max-width:860px;
}
.page-head .lead{
  margin-top:16px;
  color:rgba(255,255,255,.86);
  font-size:16px;
  line-height:1.8;
  max-width:720px;
}
.head-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  margin-top:22px;
  font-size:14px;
  color:rgba(255,255,255,.78);
}
.head-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.5);}
.head-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;
  font-size:13px;
  font-weight:500;
  letter-spacing:.02em;
}

/* ---------- 主体 ---------- */
.section{padding:64px 0;}
.section-tight{padding:48px 0;}
.section-head{margin-bottom:32px;}
.section-head h2{
  font-size:clamp(22px,1.1rem + 1vw,32px);
  line-height:1.3;
}
.section-head p{
  margin-top:12px;
  color:var(--muted);
  max-width:720px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:var(--radius-pill);
  padding:5px 14px;
  margin-bottom:14px;
}

/* 筛选胶囊 */
.filter-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding:16px 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  margin-bottom:28px;
}
.filter-row .label{
  font-size:14px;
  color:var(--muted);
  margin-right:4px;
}
.filter-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  font-size:14px;
  font-weight:500;
  cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .18s ease;
}
.filter-pill:hover{background:var(--brand-soft);color:var(--brand);border-color:rgba(90,52,232,.3);transform:translateY(-1px);}
.filter-pill.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  box-shadow:0 6px 16px rgba(90,52,232,.22);
}
.filter-pill .count{
  font-size:12px;
  opacity:.75;
  font-variant-numeric:tabular-nums;
}

/* 时间轴列表 */
.timeline{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:16px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:31px;
  top:14px;
  bottom:14px;
  width:2px;
  background:linear-gradient(180deg,rgba(90,52,232,.28),rgba(230,232,242,.9));
  border-radius:2px;
}
.timeline-item{
  position:relative;
  display:grid;
  grid-template-columns:64px 1fr 208px;
  gap:22px;
  align-items:flex-start;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:22px 24px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.timeline-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(90,52,232,.24);
}
.date-block{
  position:relative;
  z-index:2;
  width:64px;
  text-align:center;
  background:#fff;
  border-radius:var(--radius-md);
  padding:8px 0 10px;
  border:1px solid var(--line);
}
.date-day{
  display:block;
  font-size:24px;
  font-weight:700;
  color:var(--brand);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.date-ym{
  display:block;
  font-size:12px;
  color:var(--muted);
  letter-spacing:.03em;
  font-variant-numeric:tabular-nums;
}
.item-body{min-width:0;}
.item-top{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-bottom:10px;
}
.badge-pill{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  font-size:13px;
  font-weight:500;
  letter-spacing:.02em;
  white-space:nowrap;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-dark);}
.badge-accent{background:var(--brand-accent-soft);color:#0B7F6C;}
.badge-warm{background:#FFF1EA;color:#C1441A;}
.item-title{
  font-size:19px;
  font-weight:600;
  color:var(--ink);
  line-height:1.45;
}
.item-title:hover{color:var(--brand);}
.item-desc{
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
  margin:0;
}
.item-foot{
  margin-top:14px;
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.item-foot svg{width:16px;height:16px;transition:transform .2s ease;}
.timeline-item:hover .item-foot svg{transform:translateX(4px);}
.item-thumb{
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/10;
  background:var(--soft-bg);
}
.item-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .22s ease;
}
.timeline-item:hover .item-thumb img{transform:scale(1.03);}

/* 分页 */
.pagination-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:10px;
  margin-top:36px;
}
.page-pill{
  min-width:44px;
  height:44px;
  padding:0 16px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  font-size:15px;
  font-weight:600;
  font-variant-numeric:tabular-nums;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .18s ease;
}
.page-pill:hover{background:var(--brand-soft);color:var(--brand);border-color:rgba(90,52,232,.3);transform:translateY(-1px);}
.page-pill.is-current{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(90,52,232,.24);}
.page-pill.is-current:hover{background:var(--brand-dark);color:#fff;}

/* 数据小带 */
.metric-strip{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  display:grid;
  grid-template-columns:repeat(3,1fr);
  overflow:hidden;
}
.metric-cell{
  padding:26px 28px;
  border-right:1px solid var(--line);
}
.metric-cell:last-child{border-right:0;}
.metric-value{
  font-size:34px;
  font-weight:700;
  color:var(--brand);
  line-height:1.15;
  font-variant-numeric:tabular-nums;
}
.metric-value small{font-size:16px;font-weight:600;margin-left:4px;color:var(--muted);}
.metric-label{margin-top:8px;font-size:14px;color:var(--muted);}

/* 资讯范围 */
.scope-grid{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:32px;
  align-items:start;
}
.scope-intro{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:30px 28px;
}
.scope-intro h3{font-size:20px;margin-bottom:12px;}
.scope-intro p{color:var(--muted);font-size:16px;}
.scope-list{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.scope-item{
  display:flex;
  gap:18px;
  padding:24px 26px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.scope-item:last-child{border-bottom:0;}
.scope-item:hover{background:var(--soft-bg);}
.scope-icon{
  flex:0 0 auto;
  width:44px;height:44px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);
  color:var(--brand);
}
.scope-icon svg{width:22px;height:22px;}
.scope-item:nth-child(2) .scope-icon{background:var(--brand-accent-soft);color:#0B7F6C;}
.scope-item:nth-child(3) .scope-icon{background:#FFF1EA;color:#C1441A;}
.scope-item h4{font-size:17px;margin-bottom:6px;}
.scope-item p{font-size:15px;color:var(--muted);margin:0;line-height:1.75;}

/* CTA */
.cta-band{
  background:var(--brand-tint);
  border:1px solid rgba(90,52,232,.14);
  border-radius:var(--radius-lg);
  padding:40px 36px;
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:28px;
  align-items:center;
}
.cta-band h2{font-size:clamp(21px,1rem + .9vw,28px);line-height:1.35;}
.cta-band p{margin-top:12px;color:var(--muted);font-size:16px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* 页脚 */
.site-footer{
  background:var(--ink);
  color:#B9BDD0;
  padding:64px 0 28px;
  margin-top:24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:32px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:700;
  font-size:17px;
  margin-bottom:14px;
}
.footer-brand .brand-mark{
  background:linear-gradient(135deg,var(--brand) 0%,#7A5AFF 100%);
}
.footer-desc{font-size:14px;line-height:1.8;color:#B9BDD0;max-width:320px;}
.footer-title{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:#B9BDD0;
  transition:color .2s ease,transform .2s ease;
  display:inline-block;
}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:#8E93A8;
}

/* 响应式 */
@media (max-width:1199.98px){
  .timeline-item{grid-template-columns:64px 1fr 176px;gap:18px;}
  .scope-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-grid > div:last-child{grid-column:span 3;}
}
@media (max-width:991.98px){
  .main-nav,.header-tools .nav-search,.header-tools .btn-brand{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{min-height:66px;gap:12px;}
  .section{padding:56px 0;}
  .cta-band{grid-template-columns:1fr;padding:32px 26px;}
  .cta-actions{justify-content:flex-start;}
  .metric-strip{grid-template-columns:1fr;}
  .metric-cell{border-right:0;border-bottom:1px solid var(--line);}
  .metric-cell:last-child{border-bottom:0;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .page-head{padding:42px 0 40px;}
  .timeline-item{grid-template-columns:1fr;gap:16px;padding:20px 18px;}
  .timeline::before{display:none;}
  .date-block{
    width:auto;
    display:inline-flex;
    align-items:baseline;
    gap:8px;
    padding:6px 14px;
    border-radius:var(--radius-pill);
    background:var(--brand-soft);
    border-color:transparent;
  }
  .date-day{font-size:16px;color:var(--brand-dark);}
  .date-ym{font-size:12px;color:var(--brand-dark);opacity:.75;}
  .item-thumb{aspect-ratio:16/9;}
  .item-title{font-size:17px;}
  .scope-item{padding:20px 18px;gap:14px;}
  .scope-intro{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-grid > div:first-child{grid-column:span 2;}
  .footer-grid > div:last-child{grid-column:span 2;}
}
@media (max-width:519.98px){
  .container{padding-left:16px;padding-right:16px;}
  .brand{font-size:15px;}
  .brand-mark{width:34px;height:34px;}
  .page-head .lead{font-size:15px;}
  .filter-row{padding:14px;gap:8px;}
  .filter-pill{padding:7px 14px;font-size:13px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-grid > div{grid-column:span 1 !important;}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%;}
  .footer-bottom{flex-direction:column;}
}